The presence of bacteria, viruses, and fungi in the air. This term is not restricted to pathogenic organisms.
The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.
The state of the ATMOSPHERE over minutes to months.
The atmospheric properties, characteristics and other atmospheric phenomena especially pertaining to WEATHER or CLIMATE.
Colloids with a gaseous dispersing phase and either liquid (fog) or solid (smoke) dispersed phase; used in fumigation or in inhalation therapy; may contain propellant agents.
Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
A state in which the environs of hospitals, laboratories, domestic and animal housing, work places, spacecraft, and other surroundings are under technological control with regard to air conditioning, heating, lighting, humidity, ventilation, and other ambient features. The concept includes control of atmospheric composition. (From Jane's Aerospace Dictionary, 3d ed)
Removal of moisture from a substance (chemical, food, tissue, etc.).
Water in its gaseous state. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The longterm manifestations of WEATHER. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The contribution to barometric PRESSURE of gaseous substance in equilibrium with its solid or liquid phase.
Loss of water by diffusion through the skin and by evaporation from the respiratory tract.
A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
The application of heat to raise the temperature of the environment, ambient or local, or the systems for accomplishing this effect. It is distinguished from HEAT, the physical property and principle of physics.
A group of conditions that develop due to overexposure or overexertion in excessive environmental heat.
The process of exocrine secretion of the SWEAT GLANDS, including the aqueous sweat from the ECCRINE GLANDS and the complex viscous fluids of the APOCRINE GLANDS.
The mixture of gases present in the earth's atmosphere consisting of oxygen, nitrogen, carbon dioxide, and small amounts of other gases.
Water particles that fall from the ATMOSPHERE.
The motion of air relative to the earth's surface.
The climate of a very small area.
The process of keeping pharmaceutical products in an appropriate location.
Presence of warmth or heat or a temperature notably higher than an accustomed norm.
The science of studying the characteristics of the atmosphere such as its temperature, density, winds, clouds, precipitation, and other atmospheric phenomena and aiming to account for the weather in terms of external influences and the basic laws of physics. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The measure of the level of heat of a human or animal.
Supplying a building or house, their rooms and corridors, with fresh air. The controlling of the environment thus may be in public or domestic sites and in medical or non-medical locales. (From Dorland, 28th ed)
A plant genus of the family COMMELINACEAE that is used in genotoxic bioassays.
A highly toxic, colorless, nonflammable gas. It is used as a pharmaceutical aid and antioxidant. It is also an environmental air pollutant.
The condition that results from excessive loss of water from a living organism.
A discipline or occupation concerned with the study of INSECTS, including the biology and the control of insects.
The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment.
The processes of heating and cooling that an organism uses to control its temperature.
The destroying of all forms of life, especially microorganisms, by heat, chemical, or other means.
A class of devices combining electrical and mechanical components that have at least one of the dimensions in the micrometer range (between 1 micron and 1 millimeter). They include sensors, actuators, microducts, and micropumps.
Any substance in the air which could, if present in high enough concentration, harm humans, animals, vegetation or material. Substances include GASES; PARTICULATE MATTER; and volatile ORGANIC CHEMICALS.
The reproductive elements of lower organisms, such as BACTERIA; FUNGI; and cryptogamic plants.
The loss of water vapor by plants to the atmosphere. It occurs mainly from the leaves through pores (stomata) whose primary function is gas exchange. The water is replaced by a continuous column of water moving upwards from the roots within the xylem vessels. (Concise Dictionary of Biology, 1990)
The sensation of cold, heat, coolness, and warmth as detected by THERMORECEPTORS.
The chemical and physical integrity of a pharmaceutical product.
The TEMPERATURE at the outer surface of the body.
Inactivation of viruses by non-immune related techniques. They include extremes of pH, HEAT treatment, ultraviolet radiation, IONIZING RADIATION; DESICCATION; ANTISEPTICS; DISINFECTANTS; organic solvents, and DETERGENTS.
Adaptation to a new environment or to a change in the old.
Nitrogen oxide (NO2). A highly poisonous gas. Exposure produces inflammation of lungs that may only cause slight pain or pass unnoticed, but resulting edema several days later may cause death. (From Merck, 11th ed) It is a major atmospheric pollutant that is able to absorb UV light that does not reach the earth's surface.
A phase transition from liquid state to gas state, which is affected by Raoult's law. It can be accomplished by fractional distillation.
Insulated enclosures in which temperature, humidity, and other environmental conditions can be regulated at levels optimal for growth, hatching, reproduction, or metabolic reactions.
An absence of warmth or heat or a temperature notably below an accustomed norm.
Method of tissue preparation in which the tissue specimen is frozen and then dehydrated at low temperature in a high vacuum. This method is also used for dehydrating pharmaceutical and food products.
The vapor state of matter; nonelastic fluids in which the molecules are in free movement and their mean positions far apart. Gases tend to expand indefinitely, to diffuse and mix readily with other gases, to have definite relations of volume, temperature, and pressure, and to condense or liquefy at low temperatures or under sufficient pressure. (Grant & Hackh's Chemical Dictionary, 5th ed)
A space which has limited openings for entry and exit combined with unfavorable natural ventilation such as CAVES, refrigerators, deep tunnels, pipelines, sewers, silos, tanks, vats, mines, deep trenches or pits, vaults, manholes, chimneys, etc.
The maintenance of certain aspects of the environment within a defined space to facilitate the function of that space; aspects controlled include air temperature and motion, radiant heat level, moisture, and concentration of pollutants such as dust, microorganisms, and gases. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A climate which is typical of equatorial and tropical regions, i.e., one with continually high temperatures with considerable precipitation, at least during part of the year. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Substances made up of an aggregation of small particles, as that obtained by grinding or trituration of a solid drug. In pharmacy it is a form in which substances are administered. (From Dorland, 28th ed)
Usually inert substances added to a prescription in order to provide suitable consistency to the dosage form. These include binders, matrix, base or diluent in pills, tablets, creams, salves, etc.
Inanimate objects that carry pathogenic microorganisms and thus can serve as the source of infection. Microorganisms typically survive on fomites for minutes or hours. Common fomites include CLOTHING, tissue paper, hairbrushes, and COOKING AND EATING UTENSILS.
Arthropods of the class ARACHNIDA, order Araneae. Except for mites and ticks, spiders constitute the largest order of arachnids, with approximately 37,000 species having been described. The majority of spiders are harmless, although some species can be regarded as moderately harmful since their bites can lead to quite severe local symptoms. (From Barnes, Invertebrate Zoology, 5th ed, p508; Smith, Insects and Other Arthropods of Medical Importance, 1973, pp424-430)
The presence of contaminants or pollutant substances in the air (AIR POLLUTANTS) that interfere with human health or welfare, or produce other harmful environmental effects. The substances may include GASES; PARTICULATE MATTER; or volatile ORGANIC CHEMICALS.
Observation and acquisition of physical data from a distance by viewing and making measurements from a distance or receiving transmitted data from observations made at distant location.
Methods of creating machines and devices.
Fabric or other material used to cover the body.
Relating to the size of solids.
Closable openings in the epidermis of plants on the underside of leaves. They allow the exchange of gases between the internal tissues of the plant and the outside atmosphere.
The motion of air currents.
Elements of limited time intervals, contributing to particular results or situations.
Collective name for a group of external MECHANORECEPTORS and chemoreceptors manifesting as sensory structures in ARTHROPODS. They include cuticular projections (setae, hairs, bristles), pores, and slits.
The unstable triatomic form of oxygen, O3. It is a powerful oxidant that is produced for various chemical and industrial uses. Its production is also catalyzed in the ATMOSPHERE by ULTRAVIOLET RAY irradiation of oxygen or other ozone precursors such as VOLATILE ORGANIC COMPOUNDS and NITROGEN OXIDES. About 90% of the ozone in the atmosphere exists in the stratosphere (STRATOSPHERIC OZONE).
Clothing designed to protect the individual against possible exposure to known hazards.
The contamination of indoor air.
The pressure at any point in an atmosphere due solely to the weight of the atmospheric gases above the point concerned.
Materials that readily absorb moisture from their surroundings.
A phenomenon in which the surface of a liquid where it contacts a solid is elevated or depressed, because of the relative attraction of the molecules of the liquid for each other and for those of the solid. (from McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
The force per unit area that the air exerts on any surface in contact with it. Primarily used for articles pertaining to air pressure within a closed environment.
Supplies used in building.
Particles of any solid substance, generally under 30 microns in size, often noted as PM30. There is special concern with PM1 which can get down to PULMONARY ALVEOLI and induce MACROPHAGE ACTIVATION and PHAGOCYTOSIS leading to FOREIGN BODY REACTION and LUNG DISEASES.
The application of scientific knowledge or technology to pharmacy and the pharmaceutical industry. It includes methods, techniques, and instrumentation in the manufacture, preparation, compounding, dispensing, packaging, and storing of drugs and other preparations used in diagnostic and determinative procedures, and in the treatment of patients.
Expanded structures, usually green, of vascular plants, characteristically consisting of a bladelike expansion attached to a stem, and functioning as the principal organ of photosynthesis and transpiration. (American Heritage Dictionary, 2d ed)
The application of smoke, vapor, or gas for the purpose of disinfecting or destroying pests or microorganisms.
An order of fish including smelts, galaxiids, and salamanderfish.
Electrically powered devices that are intended to assist in the maintenance of the thermal balance of infants, principally by controlling the air temperature and humidity in an enclosure. (from UMDNS, 1999)
Chemistry dealing with the composition and preparation of agents having PHARMACOLOGIC ACTIONS or diagnostic use.
The preparation, mixing, and assembling of a drug. (From Remington, The Science and Practice of Pharmacy, 19th ed, p1814)
The gaseous envelope surrounding a planet or similar body. (From Random House Unabridged Dictionary, 2d ed)
Any arthropod of the subclass ACARI except the TICKS. They are minute animals related to the spiders, usually having transparent or semitransparent bodies. They may be parasitic on humans and domestic animals, producing various irritations of the skin (MITE INFESTATIONS). Many mite species are important to human and veterinary medicine as both parasite and vector. Mites also infest plants.
Collection, analysis, and interpretation of data about the frequency, distribution, and consequences of disease or health conditions, for use in the planning, implementing, and evaluating public health programs.
The external elements and conditions which surround, influence, and affect the life and development of an organism or population.
A kingdom of eukaryotic, heterotrophic organisms that live parasitically as saprobes, including MUSHROOMS; YEASTS; smuts, molds, etc. They reproduce either sexually or asexually, and have life cycles that range from simple to complex. Filamentous fungi, commonly known as molds, refer to those that grow as multicellular colonies.
Measuring instruments for determining the temperature of matter. Most thermometers used in the field of medicine are designed for measuring body temperature or for use in the clinical laboratory. (From UMDNS, 1999)
A continuous protein fiber consisting primarily of FIBROINS. It is synthesized by a variety of INSECTS and ARACHNIDS.
Disciplines that apply sciences to law. Forensic sciences include a wide range of disciplines, such as FORENSIC TOXICOLOGY; FORENSIC ANTHROPOLOGY; FORENSIC MEDICINE; FORENSIC DENTISTRY; and others.
One of the PENICILLINS which is resistant to PENICILLINASE.
Technique whereby the weight of a sample can be followed over a period of time while its temperature is being changed (usually increased at a constant rate).
The functions and properties of living organisms, including both the physical and chemical factors and processes, supporting life in single- or multi-cell organisms from their origin through the progression of life.
Corneal and conjunctival dryness due to deficient tear production, predominantly in menopausal and post-menopausal women. Filamentary keratitis or erosion of the conjunctival and corneal epithelium may be caused by these disorders. Sensation of the presence of a foreign body in the eye and burning of the eyes may occur.
A large, subclass of arachnids comprising the MITES and TICKS, including parasites of plants, animals, and humans, as well as several important disease vectors.
The fertilizing element of plants that contains the male GAMETOPHYTES.
A group of symptoms that are two- to three-fold more common in those who work in large, energy-efficient buildings, associated with an increased frequency of headaches, lethargy, and dry skin. Clinical manifestations include hypersensitivity pneumonitis (ALVEOLITIS, EXTRINSIC ALLERGIC); allergic rhinitis (RHINITIS, ALLERGIC, PERENNIAL); ASTHMA; infections, skin eruptions, and mucous membrane irritation syndromes. Current usage tends to be less restrictive with regard to the type of building and delineation of complaints. (From Segen, Dictionary of Modern Medicine, 1992)
Respirators to protect individuals from breathing air contaminated with harmful dusts, fogs, fumes, mists, gases, smokes, sprays, or vapors.
Devices that control the supply of electric current for running electrical equipment.
Barriers used to separate and remove PARTICULATE MATTER from air.
The process of laying or shedding fully developed eggs (OVA) from the female body. The term is usually used for certain INSECTS or FISHES with an organ called ovipositor where eggs are stored or deposited before expulsion from the body.
The name of two islands of the West Indies, separated by a narrow channel. Their capital is Basse-Terre. They were discovered by Columbus in 1493, occupied by the French in 1635, held by the British at various times between 1759 and 1813, transferred to Sweden in 1813, and restored to France in 1816. Its status was changed from colony to a French overseas department in 1946. Columbus named it in honor of the monastery of Santa Maria de Guadalupe in Spain. (From Webster's New Geographical Dictionary, 1988, p470 & Room, Brewer's Dictionary of Names, 1992, p221)
A clinical syndrome caused by heat stress, such as over-exertion in a hot environment or excessive exposure to sun. It is characterized by SWEATING, water (volume) depletion, salt depletion, cool clammy skin, NAUSEA, and HEADACHE.
A plant genus of the family MALVACEAE. It is the source of COTTON FIBER; COTTONSEED OIL, which is used for cooking, and GOSSYPOL. The economically important cotton crop is a major user of agricultural PESTICIDES.
Solid dosage forms, of varying weight, size, and shape, which may be molded or compressed, and which contain a medicinal substance in pure or diluted form. (Dorland, 28th ed)
Reproductive bodies produced by fungi.
Insects of the order Dictyoptera comprising several families including Blaberidae, BLATTELLIDAE, Blattidae (containing the American cockroach PERIPLANETA americana), Cryptocercidae, and Polyphagidae.
The process of protecting various samples of biological material.
Living facilities for humans.
A distribution function used to describe the occurrence of rare events or to describe the sampling distribution of isolated counts in a continuum of time or space.
The hair of SHEEP or other animals that is used for weaving.
A type of climate characterized by insufficient moisture to support appreciable plant life. It is a climate of extreme aridity, usually of extreme heat, and of negligible rainfall. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A polymer prepared from polyvinyl acetates by replacement of the acetate groups with hydroxyl groups. It is used as a pharmaceutic aid and ophthalmic lubricant as well as in the manufacture of surface coatings artificial sponges, cosmetics, and other products.
Containers, packaging, and packaging materials for drugs and BIOLOGICAL PRODUCTS. These include those in ampule, capsule, tablet, solution or other forms. Packaging includes immediate-containers, secondary-containers, and cartons. In the United States, such packaging is controlled under the Federal Food, Drug, and Cosmetic Act which also stipulates requirements for tamper-resistance and child-resistance. Similar laws govern use elsewhere. (From Code of Federal Regulations, 21 CFR 1 Section 210, 1993) DRUG LABELING is also available.
Tablets coated with material that delays release of the medication until after they leave the stomach. (Dorland, 28th ed)
Insects that transmit infective organisms from one host to another or from an inanimate reservoir to an animate host.
El Nino-Southern Oscillation or ENSO is a cycle of extreme alternating warm El Niño and cold La Nina events which is the dominant year-to-year climate pattern on Earth. Both terms refer to large-scale changes in sea-surface temperature across the eastern tropical Pacific. ENSO is associated with a heightened risk of certain vector-borne diseases. (From, accessed 5/12/2020)
Asthma attacks following a period of exercise. Usually the induced attack is short-lived and regresses spontaneously. The magnitude of postexertional airway obstruction is strongly influenced by the environment in which exercise is performed (i.e. inhalation of cold air during physical exertion markedly augments the severity of the airway obstruction; conversely, warm humid air blunts or abolishes it).
The immature stage in the life cycle of those orders of insects characterized by gradual metamorphosis, in which the young resemble the imago in general form of body, including compound eyes and external wings; also the 8-legged stage of mites and ticks that follows the first moult.
Techniques using energy such as radio frequency, infrared light, laser light, visible light, or acoustic energy to transfer information without the use of wires, over both short and long distances.
A property of the surface of an object that makes it stick to another surface.
The scattering of x-rays by matter, especially crystals, with accompanying variation in intensity due to interference effects. Analysis of the crystal structure of materials is performed by passing x-rays through them and registering the diffraction image of the rays (CRYSTALLOGRAPHY, X-RAY). (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Number of individuals in a population relative to space.
Methylester of cellulose. Methylcellulose is used as an emulsifying and suspending agent in cosmetics, pharmaceutics and the chemical industry. It is used therapeutically as a bulk laxative.
The quality or state of being wettable or the degree to which something can be wet. This is also the ability of any solid surface to be wetted when in contact with a liquid whose surface tension is reduced so that the liquid spreads over the surface of the solid.
A plant genus of the family ARALIACEAE. Members contain hederin (olean-12-ene) type TRITERPENES.
The fluid excreted by the SWEAT GLANDS. It consists of water containing sodium chloride, phosphate, urea, ammonia, and other waste products.
A polysaccharide with glucose units linked as in CELLOBIOSE. It is the chief constituent of plant fibers, cotton being the purest natural form of the substance. As a raw material, it forms the basis for many derivatives used in chromatography, ion exchange materials, explosives manufacturing, and pharmaceutical preparations.
The surface of a structure upon which one stands or walks.
Total or partial excision of the larynx.
The study of microorganisms living in a variety of environments (air, soil, water, etc.) and their pathogenic relationship to other organisms including man.
Characteristics or attributes of the outer boundaries of objects, including molecules.
Theoretical representations that simulate the behavior or activity of systems, processes, or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.
Experimental devices used in inhalation studies in which a person or animal is either partially or completely immersed in a chemically controlled atmosphere.
Earth or other matter in fine, dry particles. (Random House Unabridged Dictionary, 2d ed)
A vertical distance measured from a known level on the surface of a planet or other celestial body.
Seedless nonflowering plants of the class Filicinae. They reproduce by spores that appear as dots on the underside of feathery fronds. In earlier classifications the Pteridophyta included the club mosses, horsetails, ferns, and various fossil groups. In more recent classifications, pteridophytes and spermatophytes (seed-bearing plants) are classified in the Subkingdom Tracheobionta (also known as Tracheophyta).
Mechanical devices used to produce or assist pulmonary ventilation.
Ability of a microbe to survive under given conditions. This can also be related to a colony's ability to replicate.
Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.
Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable.
The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.
The encapsulated embryos of flowering plants. They are used as is or for animal feed because of the high content of concentrated nutrients like starches, proteins, and fats. Rapeseed, cottonseed, and sunflower seed are also produced for the oils (fats) they yield.
A large or important municipality of a country, usually a major metropolitan center.
A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.
The evaluation of incidents involving the loss of function of a device. These evaluations are used for a variety of purposes such as to determine the failure rates, the causes of failures, costs of failures, and the reliability and maintainability of devices.
Technique by which phase transitions of chemical reactions can be followed by observation of the heat absorbed or liberated.
Completed forms of the pharmaceutical preparation in which prescribed doses of medication are included. They are designed to resist action by gastric fluids, prevent vomiting and nausea, reduce or alleviate the undesirable taste and smells associated with oral administration, achieve a high concentration of drug at target site, or produce a delayed or long-acting drug effect.
A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
Substances that cause the adherence of two surfaces. They include glues (properly collagen-derived adhesives), mucilages, sticky pastes, gums, resins, or latex.
Behavioral responses or sequences associated with eating including modes of feeding, rhythmic patterns of eating, and time intervals.
The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants.
Architecture, exterior and interior design, and construction of facilities other than hospitals, e.g., dental schools, medical schools, ambulatory care clinics, and specified units of health care facilities. The concept also includes architecture, design, and construction of specialized contained, controlled, or closed research environments including those of space labs and stations.
A highly reactive aldehyde gas formed by oxidation or incomplete combustion of hydrocarbons. In solution, it has a wide range of uses: in the manufacture of resins and textiles, as a disinfectant, and as a laboratory fixative or preservative. Formaldehyde solution (formalin) is considered a hazardous compound, and its vapor toxic. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p717)
A species of gram-negative, facultatively anaerobic, rod-shaped bacteria found in soil, water, food, and clinical specimens. It is a prominent opportunistic pathogen for hospitalized patients.
The pattern of any process, or the interrelationship of phenomena, which affects growth or change within a population.
The placing of a body or a part thereof into a liquid.
Air pollutants found in the work area. They are usually produced by the specific nature of the occupation.
Materials that have a limited and usually variable electrical conductivity. They are particularly useful for the production of solid-state electronic devices.
Antigenic characteristics and DNA fingerprint patterns identified from blood stains. Their primary value is in criminal cases.
A species of mosquito in the genus Anopheles and the principle vector of MALARIA in Africa.
The consumption of liquids.
Imaging the temperatures in a material, or in the body or an organ. Imaging is based on self-emanating infrared radiation (HEAT WAVES), or on changes in properties of the material or tissue that vary with temperature, such as ELASTICITY; MAGNETIC FIELD; or LUMINESCENCE.
Stainless steel. A steel containing Ni, Cr, or both. It does not tarnish on exposure and is used in corrosive environments. (Grant & Hack's Chemical Dictionary, 5th ed)
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.
Antigen-type substances that produce immediate hypersensitivity (HYPERSENSITIVITY, IMMEDIATE).
A species of ORTHOPOXVIRUS causing infections in humans. No infections have been reported since 1977 and the virus is now believed to be virtually extinct.
The study of the structure, preparation, properties, and reactions of carbon compounds. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
A plant genus of the family APIACEAE. The leaves are the source of cilantro and the seeds are the source of coriander, both of which are used in SPICES.
Drugs manufactured and sold with the intent to misrepresent its origin, authenticity, chemical composition, and or efficacy. Counterfeit drugs may contain inappropriate quantities of ingredients not listed on the label or package. In order to further deceive the consumer, the packaging, container, or labeling, may be inaccurate, incorrect, or fake.
The initial stages of the growth of SEEDS into a SEEDLINGS. The embryonic shoot (plumule) and embryonic PLANT ROOTS (radicle) emerge and grow upwards and downwards respectively. Food reserves for germination come from endosperm tissue within the seed and/or from the seed leaves (COTYLEDON). (Concise Dictionary of Biology, 1990)
The unfavorable effect of environmental factors (stressors) on the physiological functions of an organism. Prolonged unresolved physiological stress can affect HOMEOSTASIS of the organism, and may lead to damaging or pathological conditions.
SURFACE-ACTIVE AGENTS that induce a dispersion of undissolved material throughout a liquid.
The number of new cases of a given disease during a given period in a specified population. It also is used for the rate at which new events occur in a defined population. It is differentiated from PREVALENCE, which refers to all cases, new or old, in the population at a given time.
A process of separating particulate matter from a fluid, such as air or a liquid, by passing the fluid carrier through a medium that will not pass the particulates. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Abscission-accelerating plant growth substance isolated from young cotton fruit, leaves of sycamore, birch, and other plants, and from potatoes, lemons, avocados, and other fruits.
The fluid secreted by the lacrimal glands. This fluid moistens the CONJUNCTIVA and CORNEA.
Devices that cover the nose and mouth to maintain aseptic conditions or to administer inhaled anesthetics or other gases. (UMDNS, 1999)
Procedures for collecting, preserving, and transporting of specimens sufficiently stable to provide accurate and precise results suitable for clinical interpretation.
A country spanning from central Asia to the Pacific Ocean.
The non-genetic biological changes of an organism in response to challenges in its ENVIRONMENT.
Binary compounds of oxygen containing the anion O(2-). The anion combines with metals to form alkaline oxides and non-metals to form acidic oxides.
Manufacturing technology for making microscopic devices in the micrometer range (typically 1-100 micrometers), such as integrated circuits or MEMS. The process usually involves replication and parallel fabrication of hundreds or millions of identical structures using various thin film deposition techniques and carried out in environmentally-controlled clean rooms.
Any device or element which converts an input signal into an output signal of a different form. Examples include the microphone, phonographic pickup, loudspeaker, barometer, photoelectric cell, automobile horn, doorbell, and underwater sound transducer. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
An activity in which the body is propelled by moving the legs rapidly. Running is performed at a moderate to rapid pace and should be differentiated from JOGGING, which is performed at a much slower pace.
Fluids composed mainly of water found within the body.
The continuous sequence of changes undergone by living organisms during the post-embryonic developmental process, such as metamorphosis in insects and amphibians. This includes the developmental stages of apicomplexans such as the malarial parasite, PLASMODIUM FALCIPARUM.
Flavoring agent and non-nutritive sweetener.
Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS).
The formation of crystalline substances from solutions or melts. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A species of ALPHAVIRUS associated with epidemic EXANTHEMA and polyarthritis in Australia.
The collective name for islands of the Pacific Ocean east of the Philippines, including the Mariana, PALAU, Caroline, Marshall, and Kiribati Islands. (From Webster's New Geographical Dictionary, 1988, p761 & Room, Brewer's Dictionary of Names, 1992, p350)
The science of breeding, feeding and care of domestic animals; includes housing and nutrition.
An acute viral infection in humans involving the respiratory tract. It is marked by inflammation of the NASAL MUCOSA; the PHARYNX; and conjunctiva, and by headache and severe, often generalized, myalgia.
Physical activity which is usually regular and done with the intention of improving or maintaining PHYSICAL FITNESS or HEALTH. Contrast with PHYSICAL EXERTION which is concerned largely with the physiologic and metabolic response to energy expenditure.
Cellular receptors which mediate the sense of temperature. Thermoreceptors in vertebrates are mostly located under the skin. In mammals there are separate types of thermoreceptors for cold and for warmth and NOCICEPTORS which detect cold or heat extreme enough to cause pain.
Procedures or techniques used to keep food from spoiling.
A collection of single-stranded RNA viruses scattered across the Bunyaviridae, Flaviviridae, and Togaviridae families whose common property is the ability to induce encephalitic conditions in infected hosts.

Effects of truss mattress upon sleep and bed climate. (1/1457)

The purpose of this study was to examine the effects of a truss mattress upon sleep and bed climate. The truss mattress which has been designed to decrease the pressure and bed climate humidity was tested. Six healthy female volunteers with a mean age of 23.3 years, served as subjects. The experiment was carried out under two conditions: a truss mattress (T) and a futon (F) (Japanese bedding). The ambient temperature and relative humidity were controlled at 19-20 degrees C, and RH 50-60% respectively. Sleep was monitored by an EEG machine and the rectal temperature, skin temperature and bed climate were also measured continuously. Subjective evaluations of bed and sleep were obtained before and after the recording sessions. No significant difference was observed in the sleep parameters and time spent in each sleep stage. Rectal temperature was significantly lower in T than F. Although there was no significant difference in bed climate over the T/F, the temperature under T/F was significantly higher in T. No significant difference was observed in subjective sleep evaluation. The subjective feeling of the mattress was significantly warmer in F than T before sleep. These results suggest that although T does not disturb the sleep parameters and the bed climate is maintained at the same level as with F, it may affect rectal temperature which can be due to low thermal insulation.  (+info)

Passive exchanges during water vapour absorption in mealworms (Tenebrio molitor): a new approach to studying the phenomenon. (2/1457)

The weights of single mealworms were continuously recorded at 20 degrees C during exposure to periods of constant humidity and to abrupt changes in atmospheric vapour pressure. Two exchange stages were recognized in each animal. Weight changes were either limited to slow losses, suggesting transpiration through the external cuticle, or showed more rapid humidity-dependent gains as well as losses. Rapid exchanges indicated that water was gained or lost through permeable barriers, from a fluid compartmet of significantly lower vapour pressure than the haemolymph, equivalent to about 90% R.H. Weight gains and losses during humidity changes provided evidence of a significant, passively exchanging fluid compartment located between the exchange surface and absorbing mechanism. Weight changes in faecal pellets following their elimination provide further support for a rectal site of atmospheric absorption.  (+info)

Effect of dampness at home in childhood on bronchial hyperreactivity in adolescence. (3/1457)

BACKGROUND: Relatively little is known about risk factors for the persistence of asthma and respiratory symptoms from childhood into adolescence, and few studies have included objective measurements to assess outcomes and exposure. METHODS: From a large cross sectional study of all 4th grade school children in Munich (mean age 10.2 years), 234 children (5%) with active asthma were identified. Of these, 155 (66%) were reinvestigated with lung function measurements and bronchial provocation three years later (mean age 13.5 years). RESULTS: At follow up 35.5% still had active asthma. Risk factors for persisting asthma symptoms in adolescence were more severe asthma (OR 4.94; CI 1.65 to 14.76; p = 0.004) or allergic triggers (OR 3.54; CI 1.41 to 8.92; p = 0.007) in childhood. Dampness was associated with increased night time wheeze and shortness of breath but not with persisting asthma. Risk factors for bronchial hyperreactivity in adolescence were bronchial hyperreactivity in childhood (p = 0.004), symptoms triggered by allergen exposure (OR 5.47; CI 1.91 to 25.20; p = 0.029), and damp housing conditions (OR 16.14; CI 3.53 to 73.73; p < 0.001). In a subgroup in whom house dust mite antigen levels in the bed were measured (70% of the sample), higher mite antigen levels were associated with bronchial hyperreactivity (OR per quartile of mite antigen 2.30; CI 1.03 to 5.12; p = 0.042). Mite antigen levels were also significantly correlated with dampness (p = 0.05). However, the effect of dampness on bronchial hyperreactivity remained significant when adjusting for mite allergen levels (OR 5.77; CI 1.17 to 28.44; p = 0.031). CONCLUSION: Dampness at home is a significant risk factor for the persistence of bronchial hyperreactivity and respiratory symptoms in children with asthma. This risk is only partly explained by exposure to house dust mite antigen.  (+info)

Core temperature and sweating onset in humans acclimated to heat given at a fixed daily time. (4/1457)

The thermoregulatory functions of rats acclimated to heat given daily at a fixed time are altered, especially during the period in which they were previously exposed to heat. In this study, we investigated the existence of similar phenomena in humans. Volunteers were exposed to an ambient temperature (Ta) of 46 degrees C and a relative humidity of 20% for 4 h (1400-1800) for 9-10 consecutive days. In the first experiment, the rectal temperatures (Tre) of six subjects were measured over 24 h at a Ta of 27 degrees C with and without heat acclimation. Heat acclimation significantly lowered Tre only between 1400 and 1800. In the second experiment, six subjects rested in a chair at a Ta of 28 degrees C and a relative humidity of 40% with both legs immersed in warm water (42 degrees C) for 30 min. The Tre and sweating rates at the forearm and chest were measured. Measurements were made in the morning (0900-1100) and afternoon (1500-1700) on the same day before and after heat acclimation. Heat acclimation shortened the sweating latency and decreased the threshold Tre for sweating. However, these changes were significant only in the afternoon. The results suggest that repeated heat exposure in humans, limited to a fixed time daily, alters the core temperature level and thermoregulatory function, especially during the period in which the subjects had previously been exposed to heat.  (+info)

Determination of hydroquinone in air by high performance liquid chromatography. (5/1457)

A method for measuring hydroquinone in air was evaluated, both in the laboratory and in the workplace. The method involved sampling the inhalable fraction onto a filter contained in a multi-holed sampler with a back-up of Tenax TA, followed by desorption into acetonitrile and analysis by High Performance Liquid Chromatography. It was shown to be effective at measuring hydroquinone over the range 0.1 to 2 times a concentration of 0.5 mg/m3 for 8 h.  (+info)

Dehydration and crystallization of trehalose and sucrose glasses containing carbonmonoxy-myoglobin. (6/1457)

We report a study wherein we contemporarily measured 1) the dehydration process of trehalose or sucrose glasses embedding carbonmonoxy-myoglobin (MbCO) and 2) the evolution of the A substates in saccharide-coated MbCO. Our results indicate that microcrystallization processes, sizeably different in the two saccharides, take place during dehydration; moreover, the microcrystalline structure is maintained unless the dry samples are equilibrated with a humidity >/=75% (>/=60%) at 25 degrees C for the trehalose (sucrose) sample. The evolution of the parameters that characterize the A substates of MbCO indicates that 1) the effects of water withdrawal are analogous in samples dried in the presence or in the absence of sugars, although much larger effects are observed in the samples without sugar; 2) the distribution of A substates is determined by the overall matrix structure and not only by the sample water content; and 3) the population of A0 substate (i. e., the substate currently put in relation with MbCO molecules having the distal histidine out of the heme pocket) is largely enhanced during the dehydration process. However, after rehumidification its population is largely decreased with respect to the values obtained, at similar water content, during the first dehydration run.  (+info)

Effect of 26 week magnetic field exposures in a DMBA initiation-promotion mammary gland model in Sprague-Dawley rats. (7/1457)

Several studies have suggested that exposure to 50 Hz magnetic fields promote chemically induced breast cancer in rats. Groups of 100 female Sprague-Dawley rats were initiated with a single 10 mg gavage dose of 7,12-dimethylbenz[a]anthracene (DMBA) at 50 days of age followed by exposure to ambient fields (sham exposed), 50 Hz magnetic fields at either 1 or 5 Gauss (G) field intensity or 60 Hz fields at 1 G for 18.5 h/day, 7 days/week for 26 weeks. A vehicle control group without DMBA was included. Rats were palpated weekly for the presence of tumors. There was no effect of magnetic field exposure on body weight gains or the time of appearance of mammary tumors. At the end of 26 weeks, the animals were killed and the mammary tumors counted and measured. Mammary gland masses found grossly were examined histologically. The mammary gland carcinoma incidence was 96, 90, 95 and 85% (P < 0.05, decrease) for the DMBA controls, 1 G 50 Hz, 5 G 50 Hz and 1 G 60 Hz groups, respectively. The total numbers of carcinomas were 649, 494 (P < 0.05, decrease), 547 and 433 (P < 0.05, decrease) for the DMBA controls, 1 G 50 Hz, 5 G 50 Hz and 1 G 60 Hz groups, respectively. The number of fibroadenomas varied from 276 to 319, with the lowest number in the 1 G 60 Hz exposure group. Measurement of the tumors revealed no difference in tumor size between groups. In this breast cancer initiation-promotion study in female Sprague-Dawley rats, there was no evidence that 50 or 60 Hz magnetic fields promoted breast cancer under the conditions of this assay. This study does not support the hypothesis that magnetic field exposure can promote breast cancer in this rat model.  (+info)

Microfungal contamination of damp buildings--examples of risk constructions and risk materials. (8/1457)

To elucidate problems with microfungal infestation in indoor environments, a multidisciplinary collaborative pilot study, supported by a grant from the Danish Ministry of Housing and Urban Affairs, was performed on 72 mold-infected building materials from 23 buildings. Water leakage through roofs, rising damp, and defective plumbing installations were the main reasons for water damage with subsequent infestation of molds. From a score system assessing the bioavailability of the building materials, products most vulnerable to mold attacks were water damaged, aged organic materials containing cellulose, such as wooden materials, jute, wallpaper, and cardboard. The microfungal genera most frequently encountered were Penicillium (68%), Aspergillus (56%), Chaetomium (22%), Ulocladium, (21%), Stachybotrys (19%) and Cladosporium (15%). Penicillium chrysogenum, Aspergillus versicolor, and Stachybotrys chartarum were the most frequently occurring species. Under field conditions, several trichothecenes were detected in each of three commonly used building materials, heavily contaminated with S. chartarum. Under experimental conditions, four out of five isolates of S. chartarum produced satratoxin H and G when growing on new and old, very humid gypsum boards. A. versicolor produced the carcinogenic mycotoxin sterigmatocystin and 5-methoxysterigmatocystin under the same conditions.  (+info)

of indoor building occupants (Great Britain Health and Safety features determine the rainfall distribution patterns over the the body as a result of metabolic activity. Melaka western part of Sarawak. Malaysia • FAQ • Solar radiation is closely related to the sunshine duration. From the Fig. Winds are generally This is because the thermal sensation is warm and almost hot. physical and chemical factors in the work environment could have a notable impact The site is highly valuable due to strategic location and high availability of spaces. patterns. divided into ... SUMMARY FACTORS AFFECTING EVAPORATION Factors Affecting Evaporation Evaporation Solar Radiation High High Wind High High Relative Humidity High (Water) ... University of Malaysia, Perlis; EN MISC - Fall 2019. As in the case of temperature, the diurnal variation of relative At very high relative humidity, harvested fruits maintain their nutritional quality, appearance, weight, and flavour, whilst reducing the rate at which wilting, ...
The purpose of this study is to evaluate whether, in people with dry eye syndrome, over the counter artificial tears and the prescription eye drop, dexamethasone, change or effect the eyes response to a low humidity environment.. It is known that irritation from dry eye can be improved by over the counter artificial tears because they wet and lubricate the eyes. The prescription eye drop, dexamethasone, can also improve eye irritation by decreasing the inflammation that develops in dry eye. Thus, the investigators hypothesize that the use of these conventional dry eye treatments will improve the eyes response to a low humidity environment. ...
The purpose of this study is to evaluate whether, in people with dry eye syndrome, over the counter artificial tears and the prescription eye drop, dexamethasone, change or effect the eyes response to a low humidity environment.. It is known that irritation from dry eye can be improved by over the counter artificial tears because they wet and lubricate the eyes. The prescription eye drop, dexamethasone, can also improve eye irritation by decreasing the inflammation that develops in dry eye. Thus, the investigators hypothesize that the use of these conventional dry eye treatments will improve the eyes response to a low humidity environment. ...
We are all able to tell whether an atmosphere is hot or cold the moment we enter it, but perceiving whether air has a low humidity is not as obvious to us. Our senses are not so refined as to feel the moisture content of the air we breathe into our lungs or which touches our skin.. However, the direct and indirect effects of dry air on our health are significant. Prolonged exposure to a low humidity can result in health problems for many organs (brain, kidneys, circulation, skin and eyes) and reduced resistance against chronic and acute airborne pollution, respiratory infections and allergies.. Maintaining the optimum humidity in a workplace improves employee health, which in turn reduces absenteeism and enhances productivity.. The Chartered Institute for Personnel, in its Absence Management report 2015, stated that minor illness, such as colds and flu, remain the most common cause of short-term illness. Improving a buildings humidity control is an effective and economic way to prevent this ...
Eck, T. F., B. Holben, J. Kim, A. Beyersdorf, M. Choi, S. Lee, J.-H. Koo, M. Giles, J. Schafer, A. Sinyuk, D. A. Peterson, J. S. Reid, A. Arola, I. Slutsker, A. Smirnov, M. Sorokin, J. Kraft, J. Crawford, B. E. Anderson, K. L. Thornhill, G. S. Diskin, S. Kim, and S. Park (2020), Influence of cloud, fog, and high relative humidity during pollution transport events in South Korea: Aerosol properties and PM2.5 variability, Atmos. Environ., 232, 117530, doi:10.1016/j.atmosenv.2020.117530 ...
Mixed halide Perovskite solar cells are commonly produced by depositing PbCl2 and CH3NH3I from a common solvent followed by thermal annealing, which in an up-scaled manufacturing process is likely to take place under ambient conditions. However, it has been reported that, similar to the effects of thermal annealing, ambient humidity also affects the crystallisation behaviour and subsequent growth of the Perovskite films. This implies that both of these factors must be accounted for in solar cell production. In this work, we report for the first time the correlation between the annealing time, relative humidity and device performance for inverted, mixed halide CH3NH3PbI(3-x)Clx Perovskite solar cells with active area ≈1 cm2. We find a trade-off between ambient humidity and the required annealing time to produce efficient solar cells, with low humidities needing longer annealing times and vice-versa. At around 20% RH, device performance depends relatively weakly on annealing time, but at higher ...
Formaldehyde emissions from fiberglass and polyester filters used in building heating, ventilation, and air conditioning (HVAC) systems were measured in bench-scale tests using 10 and 17 cm2 coupons over 24 to 720 h periods. Experiments were performed at room temperature and four different relative humidity settings (20, 50, 65, and 80% RH). Two different air flow velocities across the filters were explored: 0.013 and 0.5 m/s. Fiberglass filters emitted between 20 and 1000 times more formaldehyde than polyester filters under similar RH and airflow conditions. Emissions increased markedly with increasing humidity, up to 10 mg/h-m2 at 80% RH. Formaldehyde emissions from fiberglass filters coated with tackifiers (impaction oils) were lower than those from uncoated fiberglass media, suggesting that hydrolysis of other polymeric constituents of the filter matrix, such as adhesives or binders was likely the main formaldehyde source. These laboratory results were further validated by performing a small ...
Pritha Ghosh, Randall Q. Snurr Northwestern University, Department of Chemical & Biological Engineering Activated carbons impregnated with metal salts are the current standard for adsorption and capture of toxic industrial chemicals (TICs). Metal-Organic Frameworks (MOFs) are an attractive alternative due to their chemically tunable nature and relative ease of synthesis. MOFs have been reported to outperform activated carbons in capturing TICs, especially MOFs containing open metal sites (Britt et al., PNAS 2008, 105, 11623). However, in the presence of ambient humidity, water molecules coordinate to the open metal sites, leading to a drastic decrease in the MOFs capacity to capture TICs (Grant Glover et al., Chem. Eng. Sci. 2011, 66, 163). Since TICs may need to be captured under humid conditions (such as in a gas mask), it is important to assess adsorption of TICs in MOFs with water vapor present. In this work, we model the adsorption of TICs under humid conditions in a set of hydrophobic ...
Nowadays PEMFC with hydrogen fuel has developed to commercialize to replace the conventional machine. Several limitations in PEMFC commercialization are its low efficiency, viability of hydrogen fuel supply and problem of controlling fuel and water as reaction products. Effective effort to increase efficiency and water management include elevating temperature of PEMFC operation near water boiling point to increase energy produced, prevent water flooding, enhanced cooling efficiency and also the possibility to use hydrogen and air under lower humidity in order to make simples PEMFC design. But at elevated temperature and low relative humidity, Nafion membrane that during the time still used as electrolyte will shrink and at high humidity and high temperature above 80oC membrane will swell and irreversibility decay occur. Membrane shrinking and swelling will reduce PEMFC performance. The objective of this study is to investigate the usage of Nafion-SiO2-PWA nanocomposite membrane NS10W, NS15W and ...
Using the guinea pig as a model host, we show that aerosol spread of influenza virus is dependent upon both ambient relative humidity and temperature. Twenty experiments performed at relative humidities from 20% to 80% and 5°C, 20°C, or 30°C indicated that both cold and dry conditions favor transmission. The relationship between transmission via aerosols and relative humidity at 20°C is similar to that previously reported for the stability of influenza viruses (except at high relative humidity, 80%), implying that the effects of humidity act largely at the level of the virus particle. For infected guinea pigs housed at 5°C, the duration of peak shedding was approximately 40 h longer than that of animals housed at 20°C; this increased shedding likely accounts for the enhanced transmission seen at 5°C. To investigate the mechanism permitting prolonged viral growth, expression levels in the upper respiratory tract of several innate immune mediators were determined. Innate responses proved to ...
Poor humidity levels can lead to many problems. Here you can find info on ideal indoor humidity levels and what you can do to maintain them.
Learn more about Higher Indoor Humidity Levels Might Slow Flus Spread at Memorial Hospital Higher Indoor Humidity Levels Might Slow Flus Spread Study...
2015-09-07. In assessing agrometeorological conditions by Selianinovo hydrothermal coefficient (HTC) values ​​very dry (HTC ,0.5) still remains the most central parts of the country. Anykščiai, Biržai, Elektrenai, Jonava and Jurbarkas, Kaisiadorys, Kaunas, Kėdainiai, Marijampolė Prienai, Šiauliai, Šilutė and Cesis districts prolonged dry periods reached the dangerous phenomenon of the threshold (arid period of active vegetation present weather phenomena considered when HTC ,0 5 lasts 15 days or more). Alytus, Druskininkai, Ignalina, Kelme, Raseiniai, Trakai municipalities - dry (HTC 0.5-0.6). Arid (HTC 0.6-0.7), mainly in the southern regions of the country. A slight lack of moisture (HTK from 0.8 to 0.9) recorded Akmenės, Panevezys, Šalčininkai, Telsiai, Ukmerge and Utena districts. The north-eastern and north-western fringes of the country, as well as Molėtų Kalvarijos and humidity conditions are optimal (HTC 1.0-1.5), and Plunge and Kretinga districts due to extreme ...
The main route of transmission of SARS CoV infection is presumed to be respiratory droplets. However the virus is also detectable in other body fluids and excreta. The stability of the virus at different temperatures and relative humidity on smooth surfaces were studied. The dried virus on smooth surfaces retained its viability for over 5 days at temperatures of 22-25°C and relative humidity of 40-50%, that is, typical air-conditioned environments. However, virus viability was rapidly lost (3 log10) at higher temperatures and higher relative humidity (e.g., 38°C, and relative humidity of 95%). The better stability of SARS coronavirus at low temperature and low humidity environment may facilitate its transmission in community in subtropical area (such as Hong Kong) during the spring and in air-conditioned environments. It may also explain why some Asian countries in tropical area (such as Malaysia, Indonesia or Thailand) with high temperature and high relative humidity environment did not have ...
AsianProducts Temperature-Humidity Chamber directory - It includes sources from Temperature-Humidity Chamber manufacturers and Temperature-Humidity Chamber suppliers, and those qualified Temperature-Humidity Chamber manufacturer are extensively from china, Taiwan, Hong Kong.
Indoor Air Quality is an increasing concern in the world today. The mere presence of people in a building or residence can significantly alter indoor air quality. Relative humidity over the range of normal indoor temperatures (66 - 80 degrees Farenheit) has been linked both directly and indirectly to various health and structural problems. The purpose of this project was to discover whether residential dwellings might benefit from an indoor humidification system. The project consisted of the deployment of three separate sensor networks consisting of 12 tmote sky modules manufactured by the Moteiv corporation, each equipped with a temperature and humidity sensor manufactured by Sensirion. Each tmote sky module continuously transmitted the raw data readings to a base station to be processed. The lifetime of each network was approximately four days of continuous data transmission. The results verified the hypothesis that relative humidity levels have a significant affect on the indoor environment and
Thirsty blowflies whose tarsi come into contact with water will respond with proboscis extension. When flies were exposed to high or low relative humidities (RH) prior to testing, the tarsal taste thresholds to sucrose in flies that were unresponsive to water alone increased or decreased, respectively. Evidently, thirst can also be subthreshold and recognizable only as a change in threshold to aqueous sucrose.. Thresholds to sucrose and fructose, which were in the millimolar range in 3-day-old adult flies held at 55-70% RH prior to testing, fell significantly after the flies had been held at low humidity (13-20% RH) for several hours. There was no low-humidity-dependent drop in threshold with galactose or xylose, sugars to which flies normally have thresholds in the 102mmoll−1 range.. Flies held at low relative humidity exhibited increased tarsal thresholds to sucrose when they were injected with water or were allowed to drink water adlibitum. When multiple injections of water were given, ...
With the humidity dropping and the winds blowing, there could be trouble ahead for firefighters working to tame the Wine Country fires. The North Bay fires have been fueled partly by dry air, and forecasters at the National Weather Service said that could get worse Saturday night and Sunday morning. Relative humidity levels are projected to plunge into the single digits in higher elevations of Sonoma and Napa counties. Humidity levels at lower elevations are expected to stay in the teens to 20 percent.
Image: Michal Marcol / Teddington, UK -?? A two day training course on humidity measurement and calibration, covering measurement techniques, terms and definitions;,calculations, traceability and calibration and hands-on laboratory sessions.. The course will open with an introductory session on humidity terms and definitions followed by talks that will cover the necessary background to the subject with full course notes provided. A tour of the NPL Humidity laboratory, plus hands-on sessions, will give a practical introduction to humidity measurement and calibration techniques.. This will be reinforced with talks on uncertainties, traceability and accreditation.. To view the programme, click here for the current/most recent course flyer.. All participants will receive a certificate of attendance.. This course is suitable for technicians and technical managers closely concerned with humidity measurement and calibration.. The course will be given by members of the NPL ...
Improved water insensitive bonded perlite structural materials are produced by combining expanded perlite with an aqueous solution of an alkali metal silicate and thereafter molding the mixture into a desired shape and curing the molded mixture under closely controlled temperature and humidity conditions. The aqueous solution of alkali metal silicate will be either a sodium silicate solution or a potassium silicate solution. The temperature and humidity conditions for curing the molded perlite and alkali metal silicate mixture are from about F. to about F. and from about 30% to about 60% relative humidity. By carrying out the curing process under the closely controlled temperature and relative humidity conditions, a water insoluble crystalline reaction product is formed between the alkali metal silicate and the reactive expanded perlite.
TY - JOUR. T1 - Friction and wear of monolithic and glass-fiber reinforced PA66 in humid conditions. AU - Kim, J. W.. AU - Jang, Ho. AU - Woo Kim, Jin. PY - 2014/1/15. Y1 - 2014/1/15. N2 - Effect of water absorption on friction and wear of polyamides, namely monolithic polyamide 66 (PA66) and PA66 composite with 30. wt% of short glass fibers, was investigated using a block-on-ring-type tribotester. Monolithic PA66 showed high wear rates after water absorption because of softening by the absorbed water molecules and increased interfacial adhesion on the steel counter surface. Degraded wear characteristics of monolithic PA66 by chain scission of the amide functional group by water molecules were substantially improved by short glass-fiber reinforcement. The improved friction and wear characteristics were attributed to contact plateaus produced during sliding, which were held by condensed glass fibers, suggesting possible applications of PA66 in a humid environment by reinforcing it with short ...
While cryogen spray cooling (CSC) can protect skin epidermis from non-specific thermal damage, spray droplets in-flight and the cryogen/frost layer that forms on the skin surface may pose a potential problem for laser light attenuation due to absorption and/or scattering. Employing a hand piece expressly designed for concurrent light and cryogen delivery on skin phantoms, we studied the effect of relative humidity on light transmittance during and after spray cooling. Cryogen spurts were aimed at a microscope glass slide and a deformable agar phantom preheated at 32°C. According to our results, relative humidity plays a very important role in the light transmission during CSC. Light absorption and/or scattering by the spray droplets in-flight and cryogen/frost layer formation at the surface induced light attenuation values of up to 45%. The higher the relative humidity is, the lower the light transmission ...
TY - JOUR. T1 - Scaling behavior in daily air humidity fluctuations. AU - Vattay, Gábor. AU - Harnos, Andrea. PY - 1994. Y1 - 1994. N2 - We show that the daily average air humidity fluctuations exhibit nontrivial 1/fα behavior which is different from the spectral properties of other meteorological quantities. This feature and the fractal spatial structure found in clouds make is plausible to regard air humidity fluctuations as a manifestation of self-organized criticality. We give arguments why the dynamics in air humidity can be similar to those in sandpile models of self-organized criticality.. AB - We show that the daily average air humidity fluctuations exhibit nontrivial 1/fα behavior which is different from the spectral properties of other meteorological quantities. This feature and the fractal spatial structure found in clouds make is plausible to regard air humidity fluctuations as a manifestation of self-organized criticality. We give arguments why the dynamics in air humidity can be ...
16 subjects were monitored in different humidity levels to assess their physical responses to the environment and how it made them feel.
16 subjects were monitored in different humidity levels to assess their physical responses to the environment and how it made them feel.
Aims: To develop infectious (live/dead) enveloped virus test indicators and response surface methodology (RSM) models that evaluate survival of an enveloped ribonucleic acid (RNA) virus on contaminated aircraft materials after exposure to hot, humid air (HHA).Methods and Results: Enveloped RNA bacteriophage Phi6 (Φ6) was dried on wiring insulation, aircraft performance coating (APC), polypropylene, and nylon at ≥ 8 log10 plaque-forming units (PFU) test coupon−1. Only 2.4 log10 inactivation was measured on APC at 70°Celsius (°C), 5% relative humidity (RH) after 24 h. In contrast, HHA RSM models showed a 90% probability of a 7 log10 inactivation at ≥63°C, 90% RH after 1 h, and decontamination kinetics were similar across different materials. HHA decontamination of C-130 and C-17 aircraft showed >7 log10 and ≥5.9 log10 inactivation of enveloped virus on 100 and 110 test indicators, respectively, with a 1-h treatment, excluding ramp-up and ramp-down times.Conclusions: Enveloped RNA virus test
To determine the effect of humidity on the levels of the mouse allergen Mus m 1, an experimental animal room was constructed to control environmental variables. The sex, strain, age, and number of mice was constant in the room, so that the average daily production of Mus m 1 would not vary greatly. Six different levels of relative humidity from 15% to 65% were maintained for a minimum of a week each. Daily collections of airborne particulates were eluted from filters and Mus m 1 content measured by immunological assay. Increasing relative humidity caused a decrease in Mus m 1 levels from a high of 3 ng/m3 at 15% humidity to a low of 0.5 ng/m3 at 65% humidity. Thus, reduction of airborne allergen levels can be achieved by careful attention to humidity control, especially during the winter heating season when humidity levels may be low. This experimental room can be used to measure the effect of other variables such as ventilation rate, caging, bedding, and work practices on the levels of
The Eos® Complete Humidity Controller allows you to accurately and efficiently control the humidity levels in your garden. Set your desired humidity level and the controller will activate and deactivate humidifying and dehumidifying equipment appropriately. This controller also features low temperature protection in the event that achieving the desired humidity level results in an undesirable temperature. This Eos unit features a 15 ft remote sensors that monitors your temperature and humidity levels. The easy to use analog style interface makes programming the controller a simple task. Day and night settings allow for accurate environmental control ...
What is the correct humidity level for hatching Call duck eggs? I am a little confused.[IMG] Im going to be putting eggs in the incubator pretty soon....
Humidity inside the home can create a long list of issues. Inside the home you want your humidity level to be somewhere between 30-50%.
People manage home humidity levels in several ways, including properly ventilating clothes dryers and washers outside, running fans to have air continually circulating, operating whole-house...
Question - Coughing, sleeplessness, did not improve after reducing humidity level. Do you know what it could be?. Ask a Doctor about diagnosis, treatment and medication for Persistant cough, Ask an ENT Specialist
China Temperature And Humidity Measurement manufacturers - Select 2017 high quality Temperature And Humidity Measurement products in best price from certified Chinese High Temperature Gauge manufacturers, Water Temperature Gauge suppliers, wholesalers and factory on
The humidifier is the part that will maintain the humidity level in your humidor. Most of the humidors comes with so called green foam humidification systems. While its the most commun humidification system, it works only one way by increasing humidity level but will not lower humidity if necessary. We recommend to update to the latest technologies like the crystals, gel or beads that work both ways and really help maintain 70% humidity in your humidor ...
Adsorption plays a key role in the volatile organic compound (VOC) photocatalytic oxidation performance and kinetic behavior. It can lead to VOC mixture sequential treatment or even photocatalyst deactivation. The aim of this work is to determine qualitative and quantitative data regarding VOC adsorption on P25 TiO2. Acetaldehyde and acetic acid adsorption on TiO2 have been studied under both dry and humid conditions. Three experimental methods have been used: breakthrough curves, room temperature desorptions and temperature-programmed desorptions. First, acetaldehyde and acetic acid adsorptions are studied individually. Dry and humid experiments provide complementary pieces of information to identify the adsorption modes, in accordance with literature. The Langmuir model parameters (adsorption constant (K), reversible and irreversible maximum adsorbed amounts (q(m,rev) and q(m,irr)), and adsorption enthalpy Delta H) are determined for each VOC. Based on experimental results, a model for acetaldehyde
Development of a humidity measurement infrastructure will provide the tools needed to improve efficiency and quality in industry. Humidity is one of the most important properties affecting everyday processes from indoor ventilation to the storage of food products and pharmaceuticals. As a result, the ability to accurately measure humidity is vital to increasing efficiency, competiveness and providing quality assurance across a huge variety of European industries. This project has developed new measurement methods and shares best practice with emerging NMIs by providing an infrastructure for reliable, traceable humidity measurements across Europe. A particular focus has been placed on capabilities to meet the needs of each countrys key industries to allow them to gain a competitive edge. Strategies for the continued development of humidity measurement capabilities will be developed, to prepare the future metrological landscape and ensure European industry has access to the facilities it needs ...
Question - Trouble breathing in hot and humid conditions. Have pulmonary fibrosis. What is going on? . Ask a Doctor about diagnosis, treatment and medication for Pulmonary fibrosis, Ask an ENT Specialist
Xikar Crystal Humidifiers are reliable and effective alternatives to traditional humidification devices. Each Crystal Humidifier is prefilled upon arrival. Simply unwrap the humidifier and place in your humidor. A slow and steady 70% humidity level is dispersed. Clear polycarbonate cases house gel crystals which can saturate 450 times their weight with propylene glycol solution. A magnetic attachment firmly affixes the humidifier to the inner lid of your humidor. The Crystal 50 is designed to maintain as many as 50 cigars in a volume of 500 cubic inches at 70% humidity, while the Crystal 100 will handle up to 100 cigars in a volume of 850 cubic inches at 70% humidity. Recharge the humidifier with propylene glycol solution. Durations between refills may vary depending on temperature and quantity of cigars. Relieve your humidification worries with Xikar today!
This paper presents the main findings of the effect of indoor humidity on occupants thermal comfort in the humid tropics of Malaysia. An extensive field investigation was carried out in Kota Kinabalu city and the surrounding areas, located in East Malaysia. A total of 890 individuals were asked to complete a questionnaire. Measured indoor climates were also recorded. The survey was designed as cross sectional data collection. The present investigation found that the occupants were thermally comfortable at wide relative humidity range. The mean relative humidity corresponding to the optimum comfort temperature was close to 73%. Regression models failed to predict accurately the effect of relative humidity on occupants thermal perceptions. In addition, a quadratic regression model was developed for the prediction of the mean indoor relative humidity based on indoor temperature. The suggested regression model can be used for an approximate prediction of indoor relative humidity when required.
Fresh-cut produce is one of the fastest growing convenience food industries in history. Fresh-cut fruits and vegetables offer a number of advantages over whole produce, including cost control, waste reduction, variety selection, consistent quality and safety, and less in-store labor (Luo 2007). However, the fresh-cut industry and the evolving processes used to sustain freshness face considerable challenges.. The main problem that makes fresh-cut fruit a highly perishable product is the microbial growth caused by the accumulation of leaked juice rich in nutrients in the bottom of containers (Brecht 2006). Operations such as peeling, cutting, or slicing greatly increase tissue damage of fresh-cut fruits, causing the release of intracellular liquids, and consequently increase microbial growth, which is the principal deteriorative and safety problem involved in the fresh-cut industry (Brecht 2006). Additionally, as a response/consequence to wounding during processing and microbial growth during ...
The capture silk used in spider webs consists of axial fiber coated with glue droplets at regular intervals. The spider glue has a unique property that its adhesion is humidity responsive such that for some species the adhesion keeps on increasing up to 100% relative humidity. This is unlike synthetic adhesives that fail under humid conditions. From a polymer science perspective, researchers are interested in understanding the principle behind humidity responsive adhesion of spider glue to create adhesives that work in high humidity conditions.
article{f96f2b44-2869-4388-8329-6cce4733adf2, abstract = {One of the intensively explored domains of the current bionanotechnology is the focus for search of nano-materials intended to develop high throughput electronic devices. Among the questioned physical materials deoxyribonucleic acid (DNA) has given promising background to be explored as potential nanowire material for aspiring nano-devices. The distinguished characteristics of electron hopping between DNA bases intrigues investigators to provide insights of the structrual properties of the DNA under varying relative humidity condition. Present manuscript attempts to provide insights for conductance of double stranded λ-DNA and its short stretch of intrinsic sequences in correspondence to structural distortion as a result of different relative humidity (RH) conditions.}, author = {Ajore, Ram and Kaur, Inderpreet and Kaur, Harsimran and Bharadwaj, Lalit M}, issn = {2324-8777}, language = {eng}, month = {12}, number = {7}, publisher = ...
Aims: To present the more utilized types of humidifiers in mechanical ventilation circuits, mainly in pediatric patients, and to analyze their advantages and disadvantages. Source of data: Review of the scientific literature through a PubMed/Medline search, emphasizing the words humidification, mechanical ventilation, children, heated humidifiers and heat and moisture exchangers. Also included were book chapters about the subject. Summary of the findings: During mechanical ventilation, humidification and warming of inspired gases are required to prevent the effects of cool and dry gases on the tracheobronquial epithelium. The most used devices are heated humidifiers and heat and moisture exchangers. Conclusions: There are no consensus about the better device to humidification and warming of gases, mainly in pediatrics, but we observed the trend to use the heat and moisture exchangers, because of simplicity and low expense. New research is needed to optimize the heat and moisture exchangers, ...
Method. Nebulized influenza was coughed into the examination room and Bioaerosol samplers collected size-fractionated aerosols (,1 µM, 1-4 µM, and ,4 µM aerodynamic diameters) adjacent to the breathing manikins mouth and also at other locations within the room. At constant temperature, the RH was varied from 7-73% and infectivity was assessed by the viral plaque assay.. Results. Total virus collected for 60 minutes retained 70.6-77.3% infectivity at relative humidity ≤23% but only 14.6-22.2% at relative humidity ≥43%. Analysis of the individual aerosol fractions showed a similar loss in infectivity among the fractions. Time interval analysis showed that most of the loss in infectivity within each aerosol fraction occurred 0-15 minutes after coughing. Thereafter, losses in infectivity continued up to 5 hours after coughing, however, the rate of decline at 45% relative humidity was not statistically different than that at 20% regardless of the aerosol fraction analyzed.. Conclusion. At low ...
From this study, In every experiment, the temperature was held constant at 25˚C, and the starting relative humidity (RH) was set to 0% RH. The RH was programmed to step in 10% increments ending at 90% RH. The RH was incremented to the next level only when the mass change was less than 0.005%/min. NaPCA [sodium PCA] was a more effective humectant at high relative humidities (above 60% RH); while glycerin performed better at humidities below 40% RH. Washing the skin with sodium lauryl sulfate (SLS) reduced the skins ability to absorb water more so than washing with Tween 80, a milder surfactant. Vaseline petroleum jelly enhanced the water-retention properties of untreated skin. From page 39, Glycerin outperforms NaPCA at humidities below 40%. Page 40, Clearly, Table 3 shows that the skin samples treated with Vaseline experienced a lower rate of water loss. Page 40, Of the moisturizers that were examined in this study, glycerin was one of the most efficient at absorbing water at low ...
Hey, so Im getting my tank set up for a beardie that I plan on getting pretty quick, and I have two digital thermometers on either end of my tank that measure humidity levels and temperatures. The temp of it is 35⁰C but the humidity levels under it sits normally between 20-25% while humid levels at the other end of my tank normally sit at about 45%. I was wondering if thats alright or if you know something that would help. Ive considered misting the one side a little, but I dont want to increase the humidity levels at the other end since theyre already pretty ...
The National Weather Service has issued a Red Flag Warning in some areas near each of the surrounding fires (Red Salmon, August and Devil-Slater fires), meaning...
The structure and transport properties of a four different films based on two different generations of microfibrillated cellulose (MFC), alone or in combination with glycerol as plasticizer, were investigated through FE-SEM analysis and sorption or permeation experiments. FE-SEM revealed the existence of complex structures in the different samples. A porous, closely packed fiber network, more homogeneous in the samples containing glycerol, was characteristic of the surface of MFC films; while film cross-sections presented a dense layered structure with no evidence of porosity. Water vapor sorption experiments confirmed the hydrophilic character of these cellulosic materials and showed a dual effect of glycerol which reduced the water uptake at low water activity while enhancing it at high relative humidity. The water diffusion in dry samples was remarkably slow for a porous material, confirming the existence of complex structures below the film surface. In contrast, the diffusion coefficient was ...
Eleven U.K. laboratories performed dry pin-on-disk wear tests on a 95% alumina ceramic under a load of 40 N and at a sliding speed of 0.1 ms-1. Specimens were supplied with polished and ground finishes; the ground finish gave higher wear and lower friction than the polished specimens. Subsidiary experiments showed a large effect of humidity on wear with high wear rates at low humidity levels. The measure of wear with the best repeatability was scar size measurements at 5%, and the worst was mass loss measurements at 42% (expressed as ratios of 95% confidence intervals to the mean values). The reproducibility of friction measurements was 14%. ...
Humidity; 1998, Equipage. New and Selected Poems; 1992, Angus & Robertson, ISBN 0-207-16951-9. The Stunned Mullet; 1988, Hale ...
"The idea." "The hypothesis." "The unit." "The humidity." La is not elided with the words una "one (hour)", host "hueste", and ...
Humidity: 32% • Weather: Clear skies Game attendance: 92,100 Referee: Mike Defee TV announcers (FOX): Gus Johnson (Play by Play ... Humidity: 44% • Weather: Partly cloudy Game attendance: 96,936 Referee: David Alvarez TV announcers (ABC): Chris Fowler (play- ... Humidity: 20% • Weather: Partly cloudy Game attendance: 97,137 Referee: Eddy Shelton TV announcers (LHN): Lowell Galindo (play- ...
How much water vapor a parcel of air can contain before it becomes saturated (100% relative humidity) and forms into a cloud (a ... Forecast models show significant sensitivity to humidity levels within the planetary boundary layer, or in the lowest levels of ... Glossary of Meteorology (June 2000). "Relative Humidity". American Meteorological Society. Archived from the original on 2011- ... The amount of moisture in air is also commonly reported as relative humidity; which is the percentage of the total water vapor ...
"Temperature/Humidity/Rainfall". Qatar Statistics Authority. Archived from the original on 2013-03-22. Retrieved 24 June 2018. " ...
CS1 maint: discouraged parameter (link) Eric Malnic and Richard Winton (1998-08-11). "The Humidity Hex". The Los Angeles Times ...
Humidity disintegrates them. Plants Photosynthetic organisms growing throughout the Martian surface. They bloom and produce ...
Moving air may prevent mold from growing, since it has the same desiccating effect as low humidity. Mold grows best in warm ... Mold problems occur in airtight homes more frequently in the warmer months (when humidity is high inside the house, and ... Efforts typically focus on areas where there are signs of liquid moisture or water vapor (humidity), or where moisture problems ... There must be very specific temperature and humidity conditions in order for fungi to produce mycotoxins. Symptoms of mold ...
The lowest relative humidity was recorded in the afternoon of 9 June 1967, at 14%. Other years recorded were 1975 and 1981. ... "Serie Historic - Humidity". INMET (in Portuguese). Retrieved 30 August 2018. O dia começou com neve em Ponta Grossa - G1 Paraná ... However, on average the relative humidity of the air is always high. The number of sunshine hours does not change much during ... January and February are the most humid due to the humidity that advances from the tropical Atlantic, in addition to the ...
"Climate normals-Humidity". Estonian Weather Service. Retrieved 5 April 2021. "Rekordid" (in Estonian). Estonian Weather Service ...
Humidity is low. Temperature ranges from 15 degree C to 33 degree C. Even in summer there is a cool breeze. The village is ...
"Climate normals-Humidity". Estonian Weather Service. Retrieved 1 February 2021. "Climate normals-Sunshine". Estonian Weather ...
"Climate normals-Humidity". Estonian Weather Service. Retrieved 14 February 2021. "Kliimanormid-Sademed, õhuniiskus" (in ...
"Climate normals-Humidity". Estonian Weather Service. Retrieved 28 September 2016. The Pakri Islands' Development Foundation. ...
Relative humidity averages 85%. Vegetation includes várzea and cerrado forests and fields. The Curiaú River basin is about ...
Air Humidity: Annual: 70%. December: 80%. August: 50%. The "Cerrado" landscape is characterized by extensive savanna formations ...
The maximum rainfall recorded in a day is 241.8 millimetres (9.52 in). Humidity averages at 72.5%. Ecologically, the island is ...
Average humidity is 55.7%. Aleppo is characterized with mixed architectural styles, having been ruled by, among others, Romans ...
The more saturated the air is with water vapor in a microsite the more relative it is in humidity. Plants uses energy from the ... "What is Relative Humidity? - Environmental Monitor". Retrieved 2016-12-14. "Why do plants need sunlight?". ... Classifying different microsites may depend on temperature, humidity, sunlight, nutrient availability, soil physical ...
... barometric pressure and humidity. This includes the collection of passive or active emitted or reflected sounds, pressure waves ... air temperature and relative humidity. The ceilometer sensor determines cloud height and discrete cloud layers. The system ...
Comfort The air supplied by the evaporative cooler is generally 80-90% relative humidity and can cause interior humidity levels ... High humidity in air may cause condensation of water. This can be a problem for some situations (e.g., electrical equipment, ... High humidity in air accelerates corrosion, particularly in the presence of dust. This can considerably reduce the life of ... In the first stage of a two-stage cooler, warm air is pre-cooled indirectly without adding humidity (by passing inside a heat ...
This was a result of humidity introduced into the units when the doors to the freezer were opened condensing on the cold parts ... humidity and usage patterns. Depending on the sensor inputs, the compressor adjusts its speed. For example, if door is opened ...
High humidity encourages cone development.[citation needed] There are certain topographical areas found in lower elevations, ... which dry up humidity and moisture content (particularly snow packs) that provide for the tree throughout the spring and summer ... such as shaded canyons, where the humidity remains constant throughout the spring and summer, allowing pine cones to fully ...
CS1 maint: discouraged parameter (link) Brandon Bailey (August 21, 1997). "Blame humidity on Ignacio aftermath; dry weather ...
... average daily humidity is 75%. The rainy season extends from mid June through mid October, with most of the rain between July ...
Humidity levels in an indoor environment need to be accounted for based upon season and temperature. If humidity levels do not ... An acceptable humidity level in indoor spaces ranges from twenty to sixty per cent year round. However, levels less than twenty ... Humidity occurs in indoor environments due to building related causes. Porous walls, rising damp, and leaks in the building are ... Items such as aquariums, indoor swimming pools, hot tubs, and even indoor plants add to the humidity of an indoor space. All of ...
Relationship to relative humidity: The relative humidity of air in equilibrium with a sample is called the Equilibrium Relative ... There is net absorption of water by a solution with a water activity less than the relative humidity of its surroundings. ... The resistance is directly proportional to relative air humidity, and also to water activity of the sample (once vapor-liquid ... Therefore, in an enclosed space, a solution can be used to regulate humidity. Young, Linda; Cauvain, Stanley P. (2000). Bakery ...
Some flexibility is naturally built into most collections when it comes to the temperature and humidity changes they can bear, ... Additionally, mold growth is far more likely as humidity increases, which not only could cause allergic reactions for viewers ... Anistropic materials such as wood and ivory are especially responsive to humidity changes, and RH issues are compounded when ... They include the temperature, relative humidity, light levels present in a collection space on any given day, and contaminants ...
Therefore, water vapor is removed from the cooled air and the relative humidity in the room is lowered. The water is usually ... The rate at which water can be produced depends on relative humidity and ambient air temperature and the size of the compressor ... The rate of water production depends on the ambient temperature, humidity, the volume of air passing over the coil, and the ... The cost-effectiveness of an AWG depends on the capacity of the machine, local humidity and temperature conditions, and the ...
A condensation humidity 'wetting' phase. This is usually conducted at an elevated temperature and generally a high humidity of ... A controlled humidity/humidity cycling phase. This requires the tests samples to be exposed to a controlled temperature and ... with or without control over the relative humidity and usually by introducing a continuous supply of relatively fresh air ... controlled humidity climate, which can either be constant or cycling between different levels. When cycling between different ...
All posts tagged with low humidity. * Groundbreaking solar device pulls water from DRY air. ...
Critical Humidity Applications. Data loggers are also ideal for monitoring humidity, which in many businesses, is a critical ... When the success or failure of a business depends on humidity and temperature levels, it is crucial to have the 24-hour ... Anytime temperature or humidity levels need to be monitored, a data logger should be utilized. ... In many industries, the importance of monitoring and maintaining temperatures and humidity levels are of the utmost importance ...
Google Play Store allows you to download an application that will measure the ambient humidity and temperature of your ... How to Check the Temperature and Humidity on Your Android. ... Place a Temperature and Humidity widget on your homescreen. You ... How to Check the Temperature and Humidity on Your Android. Two Parts:Downloading and Installing Temperature and HumidityUsing ... you can begin learning how to measure the humidity on your supported Android device with Ambient Temperature and Humidity by ...
Instead, its the strong winds and the low humidity levels, with humidity expected to be in the 10 to 15 percent range today in ... High winds, low humidity increase Riverside… Share this:. *Click to share on Facebook (Opens in new window) ... A red flag warning signifying a high risk of wildfire because of high winds and low humidity went into effect this morning in ... The humidity is expected to be in the 7 to 15 percent range between Tuesday and Saturday. ...
The north-eastern and north-western fringes of the country, as well as Molėtų Kalvarijos and humidity conditions are optimal ( ... Humidity conditions. 2015-09-07. In assessing agrometeorological conditions by Selianinovo hydrothermal coefficient (HTC) ...
The mean relative humidity corresponding to the optimum comfort temperature was close to 73%. Regression models failed to ... In addition, a quadratic regression model was developed for the prediction of the mean indoor relative humidity based on indoor ... The suggested regression model can be used for an approximate prediction of indoor relative humidity when required. ... The present investigation found that the occupants were thermally comfortable at wide relative humidity range. ...
Re: Ideal humidity level for drybox? Not sure what is ideal for the dry box .. but the recommended humidity for photographic ... Re: Ideal humidity level for drybox? can but it will take alot of effort. when it gets too dry just open the box a little. then ... Re: Ideal humidity level for drybox? Got mine at CP for $5 a bottle of 500g. Probably can get it cheaper else where.. Not sure ... Re: Ideal humidity level for drybox? Back to the topic... So 30% is too low? Then maybe i try to varies the amount of silica ...
Forecast for hot temperatures and low humidity has increased fire danger. Level 2 Fire Restrictions are now in effect.. Boulder ...
High Winds and Low Humidity May Increase Fire Activity Posted By Iridian Casarez on Thu, Oct 15, 2020 at 1:51 PM click to ... High winds with gusts of up to 40 mph and low levels of humidity are expected through Friday in most of the regions. PG&E ... with warm temperatures and lower humidity. Throughout the fire area, north-northeast winds will bring drier air from the east, ...
Humidity (2000) is an album by the American ambient musician Robert Rich. It is a three disc set of live material recorded in ... "Humidity Toward the Troposphere" - 14:25 "Beyond Part 1" - 16:26 "Beyond Part 2" - 6:43 "Beyond Part 3" - 6:52 "Beyond Part 4 ...
Humidity buffering refers to the ability of materials to moderate changes in relative humidity by absorbing and desorbing water ... A pan of water is placed in the humidor so that the wood will absorb water vapor at close to 100% relative humidity. It is then ... Recently, there has been an interest in the field of building science and architecture in using humidity buffering as a passive ... relative humidity) as the silica will help protect the objects displayed from mechanical damage due to shrinking and growing ...
Relative humidity[edit]. Main article: Relative humidity. The relative humidity (. R. H. {\displaystyle (RH}. or ϕ. ). {\ ... Relative humidity, expressed as a percentage, indicates a present state of absolute humidity relative to a maximum humidity ... "Climate - Humidity indexes". Encyclopaedia Britannica. Retrieved 15 February 2018.. *^ "Climate/humidity table". Transport ... Specific humidity[edit]. Specific humidity (or moisture content) is the ratio of the mass of water vapor to the total mass of ...
Humidity measurements include absolute humidity, the mass of water vapor per unit volume of natural air; relative humidity ( ... usually meant when the term humidity alone is used), the ratio ... Humidity measurements include absolute humidity, the mass of ... Absolute humidity finds greatest application in ventilation and air-conditioning problems. Humidity is measured by means of a ... On the other hand, a low relative humidity modifies the effect of temperature extremes on the human body. Humidity decreases ...
Hybrid Humidity Generator. NISTs new primary standard humidity generator, the Hybrid Humidity Generator (HHG), replaces the ... Humidity. The NIST Thermodynamic Metrology Group maintains and develops national standards of humidity (in the range 1 nmol/mol ... A Humidity Generator for Temperatures to 200 °C and Pressures to 1.6 MPa. November 30, 2012 ... Humidity Responsive Photonic Sensor based on a Carboxymethyl Cellulose Mechanical Actuator. July 15, 2018 ...
Highs will be in the mid to upper 90s, but with the higher humidity in place, it will feel like 105 to 110. This is certainly ... Moving into the holiday weekend, a slight drop in temperatures and humidity, but itll still be very warm. An isolated storm ... Continued heat and humidity. Your forecast from the NBC 5 Weather Experts. ...
Today will be with mostly sunny with more heat and less humidity. Expect more hit or miss showers and storms over far East ... Today will be with mostly sunny with more heat and less humidity. Expect more hit or miss showers and storms over far East ... More heat and less humidity. Your forecast from the NBC 5 Weather Experts. ...
Hows the weather looking for your Thursday? Get the latest Maines Total Weather video forecast from Chief Meteorologist Roger Griswold.
... about the mandolin but I put in the case a d addario package humidity absorber inside the cave of the body to keep humidity at ... In this time of year I fear for humidity in the cupboard where I keep both my Morgan Monroe and my Martin guitar , temperature ... is at 81 f and humidity at 78 percent in the case of the guitar, I honestly still dont know ... Re: Humidity As others have said, high humidity is much less a problem than low humidity - until you get to a mold or mildew ...
As an example of how to read the table, a room temperature of 70° F combined with a relative humidity of 10% feels like 64° F, ... Winter Indoor Comfort and Relative Humidity. Effects of Dry Air on the Body ... However, the heat that is added will cause a drying effect and lower the indoor relative humidity, unless an indoor moisture ... Compared to summer when the moisture content of the air (relative humidity) is an important factor of body discomfort, air ...
General Information on Humidity and Collections. Different types of collections have substantially different relative humidity ... Wasp nest specimen with mold growth as a result of incorrect humidity conditions. ©Justine Cooper, Courtesy Daneyal Mahmood ... This problem is accelerated by high relative humidity conditions.. Temperature/RH and Vertebrate Zoology Collections. ... Datalogger Applications in Monitoring the Museum Environment, Part I:Comparison of Temperature Relative Humidity Dataloggers ...
Cold weather, high humidity and big daily temperature swings seem to land more people in the hospital with strokes. As it got ... Conversely, high humidity may cause dehydration, which also can raise the risk for clots and raise stress on the body, he ... Cold weather, high humidity and big daily temperature swings brought more stroke hospitalizations. The study by researchers ... Lower temperatures, larger daily temperature changes and higher dew points (humidity) were tied to higher stroke ...
University of Engineering and Technology has designed a billboard that creates clean drinking water from atmospheric humidity. ... In a desert climate with an average temperate of 95 degrees Fahrenheit and average relative humidity of about 30 percent, the ... But Limas Pacific Coast location experiences humidity of more than 90 percent on summer days, from December to February. So ... A Billboard That Condenses Water From Humidity. Perus University of Engineering and Technology has designed a billboard that ...
At humidity levels of 23 percent, 70 to 77 percent of the flu virus particles were still able to cause an infection an hour ... But when humidity levels were raised to 43 percent, just 14 percent of the virus particles had the ability to infect. Most of ... High humidity was just as detrimental to small flu particles as large ones. Thats important because small flu particles tend ... Raising the humidity level of a whole building could be a challenge. But the findings suggest that hospitals might consider ...
Humidity doesnt hinder the ability of flu viruses to infect people, claims a new study that challenges a long-held belief that ... home/cold and flu center/ cold and flu a-z list/ humidity wont hamper spread of flu virus article ... "We thought this might help explain why flu season occurs in the winter, when humidity is low indoors, but we now have to ... The team ran the experiment at seven different humidity levels.. "I was astonished," Lakdawala said in a Pitt news release. " ...
Relative Humidity. by Tim Brice and Todd Hall. Enter a temperature, relative humidity and actual station pressure. ... Dewpoint and Wet-bulb from Relative Humidity. , El Paso, TX , Dewpoint and Wet-bulb from Relative Humidity ...
Does high humidity, for example, increase intracranial pressure? Or is it just, li... ... It seems to be generally accepted that humidity worsens headaches, but I dont find any explanations WHY this is so. ... Headaches and humidity Gcalex It seems to be generally accepted that humidity worsens headaches, but I dont find any ... Does high humidity, for example, increase intracranial pressure? Or is it just, like so much surrounding headaache, a mystery? ...
This approach could lead to devices that can charge cellphones or other electronics using just the humidity in the air. As a ... Harvesting Energy From Humidity 89 Posted by Soulskill on Tuesday July 15, 2014 @05:34PM. from the its-not-the-heat,-its-the- ... Submission: Harvesting energy from humidity - Water droplets can charge Cellphones. Telcos Move Net Neutrality Fight To ...
Weather Underground: Current humidity level rises above. Slack: Post to channel. ... Use Weather to send warning message to Slack channel when Humidity spikes parameter. Use levels in region to help with pest ...
I was wondering how does it look like on the water overnight? Can someone tell me what does it like in the summer in Clear Lake/Galveston? I read somewhere that Catalina 22 is called bbq pit, I guess because it is hot inside. If I get a sailboat without AC, would I be able to spend some ...
I have bronchitis and COPD and humidity closes the airways terrible.. Terry ...
Relative humidity. With this knowledge, we can now talk about relative humidity. The word relative is the key to the term, not ... Where the numbers are close, the relative humidity is high, when the two are far apart the relative humidity is low. ... If the relative humidity is 100 percent, its not telling us anything about how we feel; only the air is holding as much as it ... Its not relative humidity which tells us how we feel, its the dew point. When the dew point reaches about 60F there is about ...
Read this Bright Hub article to get a clear picture of relative humidity, evaporation and how they are related to each other. ... it is first important to understand what relative humidity is and what the factors are that it is affected by. ... How does relative humidity affect evaporation? To understand, ... Relative humidity is the ratio of the current humidity of the ... Relative Humidity Affecting Evaporation. The rate of evaporation at a given place is always dependent on the humidity of that ...
Learn more about COPD and humidity here, and discover how to find the right humidity levels for you. Also get information on ... COPD triggers, handling indoor humidity, managing mold in moist environments, and more. ... low humidity levels are best for people with COPD, but every person is different. ... In general, lower humidity levels are best for people with COPD. According to the Mayo Clinic, the ideal indoor humidity level ...
... but this past week the humidity on the east coast has been ridiculous - I am in the mid-atlantic and every day is more and more ... Heat vs Humidity. Most of us have had an unbearably hot summer - but this past week the humidity on the east coast has been ... And either humidity or heat can cause this body temperature rise. Normally I can handle 75 degree weather but if the humidity ... And either humidity or heat can cause this body temperature rise. Normally I can handle 75 degree weather but if the humidity ...
... misters and foggers at PetSmart help you monitor and control your reptiles temperature and humidity. ... Reptile Humidity and Temperature Control Give him a safe, healthy, comfortable habitat. With reptile humidity and temperature ... and create an environment where he can thrive with perfect temperature and humidity. ...
The SparkFun Weather Shield is an easy-to-use Arduino shield that grants you access to barometric pressure, relative humidity… ...
HMK15 Humidity Calibrator. Vaisala Humidity Calibrator HMK15 makes calibration and spot checking of humidity probes and ... Scroll down to watch a video on the exact process on how to calibrate the Vaisala HUMICAP Humidity and Temperature HMT330 ... Vaisala News Article: Easy and Reliable Calibration with the HMK 15 Humidity Calibrator (611.92 KB) ...
Shop for Duralast Humidity Sensor SU10544 with confidence at Parts are just part of what we do. Get yours online ...
RTS temperature/humidity sensors are wireless, self-powered sensors that detect temperature/humidity in interior spaces. - They ... relative humidity accuracy of 3% - set point and fan speed option - operates in low light (15 lux, 1.5 foot candles) ... The new RTS Temperature/Humidity sensor advanced features:. - range confirmation to ensure strong connection with host - ... Models options offer variations of temperature only, temperature set point, relative humidity, occupancy override and fan speed ...
  • The project consisted of the deployment of three separate sensor networks consisting of 12 tmote sky modules manufactured by the Moteiv corporation, each equipped with a temperature and humidity sensor manufactured by Sensirion. (
  • The screwable PTFE sintered filter is highly resistant to aggressive media and is water-repellent, and reliably protects the humidity and temperature sensor. (
  • Time series of average CO 2 and indoor absolute humidity during the school day for the week of January 31 to February 4, 2011 in School 1. (
  • The solid line is average indoor absolute humidity for the same week. (
  • Absolute humidity, wet bulb temperature and dew point are calculated at the same time. (
  • Although high humidity can harm your wooden furniture and home structures due to moisture, dry air can cause your wooden furniture to lose structural integrity (as wood needs moisture to remain sturdy). (
  • Using humidifiers to put moisture into an atmosphere is only way to ensure the ideal indoor humidity is maintained throughout the winter. (
  • INTEGRA BOOST Humidiccant uses patent pending technology that releases or absorbs moisture, maintaining relative humidity at 62 % in a contained environment. (
  • Avoiding things that overheat or add moisture to the air will work in your favor to reduce humidity in the home, so try and keep lids on your boiling water and the shower vents on while the water is running! (
  • Currently, the only devices that it will work on are those with Ambient humidity and temperature sensors, such as the Samsung Galaxy Note 3 and S4, according to the application description page. (
  • GS828-NH2 is a wireless Ethernet data logger integrated with Temperature Humidity Sensors. (
  • Another easy way to provide your orchid with the humidity it craves is to purchase a humidifier. (
  • One caution when it comes to using a humidifier creating too much humidity. (
  • Investing in home humidifiers for your home in Park City, Utah , can help you keep your home's humidity levels at the recommended range (about 40 to 50% relative humidity ). (
  • In addition, a quadratic regression model was developed for the prediction of the mean indoor relative humidity based on indoor temperature. (
  • The suggested regression model can be used for an approximate prediction of indoor relative humidity when required. (
  • By raising indoor relative humidity levels to 43 percent or above, investigators reported that they were able to quickly render 86 percent of airborne virus particles powerless. (
  • This project has developed new measurement methods and shares best practice with emerging NMIs by providing an infrastructure for reliable, traceable humidity measurements across Europe. (
  • An indoor humidity level of between 40-60%RH has been scientifically proven to combat airborne flu infections. (
  • This ideal humidity level shortens the time airborne flu remains infectious. (
  • The scientific studies below are just a few of the many that show how the correct indoor humidity is vital for airborne infection control. (
  • At this level, the airborne flu virus is quickly inactivated and air humidity is below the level that promotes mould growth. (
  • Low humidity dries our mucous membranes and inhibits our body's natural defence against airborne germs, viruses and bacteria. (
  • Low humidity acts as a conduit for viruses and airborne bacteria to disperse and travel around a building and threaten all occupants. (
  • Study of the viability of raising the humidity in classrooms through humidification to a level that would reduce the airborne survival rates of flu. (
  • We hypothesize that airborne concentrations of infectious influenza A viruses (IAVs) vary with humidity through its influence on virus inactivation rate and respiratory droplet size. (
  • Prolonged exposure to a low humidity can result in health problems for many organs (brain, kidneys, circulation, skin and eyes) and reduced resistance against chronic and acute airborne pollution, respiratory infections and allergies. (
  • 40-60% relative humidity is the ideal condition for our overall wellness, the efficient functioning of our respiratory immune system and the prevention of spreading airborne microbes and pollutants throughout buildings. (
  • Many factors enter into making a more precise definition of those terms, including the kind of plant being grown and the recent history of the relative humidity and temperature in the greenhouse. (
  • 3 - Lowen et al, 2007, Influenza virus transmission is dependent on relative humidity and temperature, PLoS One Pathogens Okt. (
  • There's no doubt that it's best to keep your home's humidity level properly regulated, not too high or too low. (
  • Based on the project findings residential dwellings would benefit from an indoor humidification system, given the symptoms associated with relative humidity level problems exist. (
  • If you are experiencing chapped/dry skin, or difficulty breathing while in your home, you may need to get your humidity level checked out. (
  • The one drawback to this approach is that in many cases, the plants may need to receive this treatment daily sometimes several times a day to keep humidity at its desired level. (
  • This obviously demonstrates the protective effect of a mid-range humidity level. (
  • Additionally, it offers an attractive climate, with the average humidity level hovering around 52% and relatively mild winters -- especially for the home of the 2006 Winter Olympics. (
  • The high humidity levels also indicated that the air quality levels in the city took a hit as there was a thick haze in the sky on Thursday evening. (
  • If confirmed, however, the protective impact of humidity levels of 40 percent and above probably would be of the most practical benefit in hospital settings, where the ability to protect medical staff by strictly regulating humidity levels would be most feasible. (
  • Anytime temperature or humidity levels need to be monitored, a data logger should be utilized. (
  • Using the affiliated data logger software, users can acquire data for temperature, relative humidity, water vapor concentration, dew point and more. (
  • When the success or failure of a business depends on humidity and temperature levels, it is crucial to have the 24-hour monitoring capability of a data logger. (
  • detail] It is a GPRS Temperature and Humidity Data Logger with programmable I/O. Its built-in UPS feature providing user alert of AC power loss. (
  • Fans and a dehumidifier was placed in the basement to rapid dry the carpets, so that we didn't elevate the relative humidity. (
  • The simplest of ways to decrease the humidity in your home is to purchase a dehumidifier. (
  • What's more, the protective impact of higher humidity levels appeared to be rapid, with the majority of viral inactivation taking place within 15 minutes of when viral particles were first "coughed" into a high-humidity environment. (
  • Only 2.4 log 10 inactivation was measured on APC at 70°Celsius (°C), 5% relative humidity (RH) after 24 h. (
  • Analysis of the survival and inactivation of coronavirus on surfaces at different temperature and humidities. (
  • Humidity is an important variable in aerosol transmission of IAVs because it both induces droplet size transformation and affects IAV inactivation rates. (
  • In this modelling study, the authors modelled the elimination time of influenza aerosols coughed in a room by combining two ventilation scenarios with the known effects of humidity on virus inactivation, droplet size distribution and setting velocity. (
  • High winds with gusts of up to 40 mph and low levels of humidity are expected through Friday in most of the regions. (
  • While the Southwestern United States is generally regarded as having the lowest levels of humidity, Denver holds it own. (
  • Once it becomes stable, take note of the humidity percentage as it should be the accurate measurement. (
  • Strategies for the continued development of humidity measurement capabilities will be developed, to prepare the future metrological landscape and ensure European industry has access to the facilities it needs well beyond the duration of the project. (
  • You will get exceptionally accurate measurement results with the digital humidity/temperature probe, because the measuring instrument makes measurement uncertainty a thing of the past. (
  • During the cold winter months, when heating systems dry the air, indoor humidity often drops into the dry danger zone of less than 40%RH. (
  • Test your indoor humidity with this hygrometer - free for qualifying individuals (terms and conditions apply). (
  • Higher humidity is often caused by higher temperatures which, alone, can make a home uncomfortable to stay in. (
  • For the building service industry, this means that maintaining a higher humidity reduces the building's heating requirements by around 2°C. This represent an energy saving of around 10% of the total energy consumption for heating. (
  • Two hospitals had no humidity control (ave. 19-22%RH) and one had humidification (ave. 31-34%RH). (
  • A dehumidifiers purpose is to lower and control the humidity in the air, thus eliminating odors, providing a more comfortable environment and decreasing the chance of mold growth. (
  • Improving a building's humidity control is an effective and economic way to prevent this type of short term illness, to the benefit of the business and its employees. (
  • These three videos provide an overview of the facts related to improved health through humidity control. (
  • Absenteeism was monitored in Canadian schools, alongside %RH, to see if any correlation existed between humidity and illness. (
  • Maintaining the optimum humidity in a workplace improves employee health, which in turn reduces absenteeism and enhances productivity. (
  • High Low Temperature Humidity Environmental Circulation Test Chamber Temperature Humidity Test Chamber Climatic Chamber Technical Parameters: Model ?TH-80(A~F) ?TH-150(A~F)? (
  • The study was designed to investigate the subjective and physiological responses of young and old males exposed to different humidity levels (10, 30 and 50%) for 120 minutes in a climatic chamber. (
  • The viability of three species of bacteria (pneumococcus type I, staphylococcus albus and streptococcus haemolyticus) nebulized from a suspension, was measured in a climatic chamber with adjustable different relative humidity levels and temperature. (
  • We observed that the glue extensibility increased dramatically with an increase in humidity,' says Gaurav Amarpuri , a PhD student in Dhinojwala's group and the paper's first author. (
  • Note the increase in glue extensibility with humidity. (
  • The professors found that a one degree Celsius increase in temperature and a one percent increase in relative humidity lower "R" by 0.0383 and 0.0224, respectively. (
  • In general terms, a rapid increase in relative humidity is a sizable change in a short period of time. (
  • A Bibb lettuce crop in a greenhouse where the relative humidity goes from 60% to 80% in 15 to 20 minutes, experienced a rapid increase in relative humidity and may suffer tissue damage in the form of the death of cells at the leaf margins. (
  • This is one of the reasons that rapid relative humidity increases can be more damaging to plant tissue than the same increase in relative humidity spread out over a longer period of time. (
  • A rapid drop in greenhouse temperature will produce a rapid increase in the Relative Humidity in the environment. (
  • 3 Ways To Increase The Humidity Levels For Your Orchids. (
  • One of the easiest ways to increase the humidity levels is by creating a small greenhouse environment around your plant. (
  • Like I said this is a low maintenance way to increase the humidity levels, but there are a few cautions. (
  • If you don't see an increase in humidity you may need to try another approach listed below. (
  • In many industries, the importance of monitoring and maintaining temperatures and humidity levels are of the utmost importance. (
  • We'll talk about the effects of rapid relative humidity decreases in part 2 of this blog post. (
  • Measured the survival of flu in droplets of different solutions at varying humidity levels to isolate the effects of humidity and the host droplet's composition on flu. (
  • If you have either of those devices, you can begin learning how to measure the humidity on your supported Android device with Ambient Temperature and Humidity by Sensirion AG. (
  • From among the results, select the one labelled "Ambient Temperature and Humidity" by Sensirion AG. (
  • It's very hard to prove that lower humidity increases the risk of transmissibility, but it's not surprising because the reasoning makes sense, which is that droplets fall to the ground in high humidity because water travels on dry air, not on water. (
  • When the relative humidity in the greenhouse environment either increases or decreases rapidly, the adaptation capabilities of the plants growing in the greenhouse environment may be challenged beyond the breaking point. (
  • What Happens To The Plant When Relative Humidity Increases Rapidly? (
  • This paper presents the main findings of the effect of indoor humidity on occupants' thermal comfort in the humid tropics of Malaysia. (
  • Regression models failed to predict accurately the effect of relative humidity on occupants' thermal perceptions. (
  • Djamila, H. , Chu, C. and Kumaresan, S. (2014) Effect of Humidity on Thermal Comfort in the Humid Tropics. (
  • The purpose of this study is to evaluate whether, in people with dry eye syndrome, over the counter artificial tears and the prescription eye drop, dexamethasone, change or effect the eyes response to a low humidity environment. (
  • Employing a hand piece expressly designed for concurrent light and cryogen delivery on skin phantoms, we studied the effect of relative humidity on light transmittance during and after spray cooling. (
  • Placed caged guinea pigs infected with flu next to uninfected caged guinea pigs, in a controlled environment at different humidity levels to assess humidity's effect on transmission. (
  • The increased TEWL in the first minutes of low humidity exposure was felt as lowered room temperature because of the evaporative cooling effect. (
  • The study provides evidence for a drying effect of low humidity on our eyes, skin and mucous membranes. (
  • Relative humidity had a striking effect on the decay rate! (
  • More relevant is the humidity effect on settling (by increasing droplet diameter), since overall settling represents more than 80% of the elimination efficiency. (
  • While many places in the U.S. have mild winters and beautiful summers, most come with the unwanted effect of warm weather: humidity. (
  • For example, the Argiope species is active during day in open fields, and its glue was stickiest at 30-50%, while the Tetragnatha species is active at night above streams of water, and its adhesion kept on increasing up to 100% relative humidity. (
  • But high humidity adds insult to injury by making you and your home feel sticky and stuffy due to the high amount of heated water vapor in the atmosphere. (
  • Low humidity makes you feel colder due to the lack of warm water vapor in the air. (
  • If your home's air regularly has high relative-humidity readings, check for water sources around your house. (
  • The two car garage extended over one hundred feet in length, and mold began to grow on the drywall ceiling due to some water infiltration and a much larger humidity issue. (
  • This can be down with a shallow waterproof tray (as known as a humidity tray), some water, and decorative stones, beads or pebbles. (
  • In addition, to providing water, it also gives your plant the humidity that they need. (
  • At medium humidity, the glue droplets form a suspension bridge structure where adhesion is maximum. (
  • Our model advances a mechanistic understanding of the aerosol transmission route, and results complement recent studies on the relationship between humidity and influenza's seasonality. (
  • There is mounting evidence that the aerosol transmission route plays a significant role in the spread of influenza in temperate regions and that the efficiency of this route depends on humidity. (
  • The present investigation found that the occupants were thermally comfortable at wide relative humidity range. (
  • However, at the humidity of maximum adhesion, the glue of these five diverse species had very similar viscosity in the range of 10 5 -10 6 cP (centipoise). (
  • Relative humidity over the range of normal indoor temperatures (66 - 80 degrees Farenheit) has been linked both directly and indirectly to various health and structural problems. (
  • In fact, most orchids prefer humidity levels to be anywhere between 50 to 80 percent range. (
  • The authors note that their findings are "consistent with the fact that the high temperature and high humidity significantly reduce the transmission of influenza. (
  • Olesen, B.W. and Parsons, K.C. (2002) Introduction to Thermal Comfort Standards and to the Proposed New Version of EN ISO 7730. (
  • A paper by four Chinese professors concludes that high temperature and high relative humidity significantly reduce the transmission of the Wuhan coronavirus. (
  • Flu transmission between guinea pigs was lowest at 50%RH and significantly increased as the humidity decreased. (
  • Saccharin Clearance time increased in low humidity and was significantly increased in 10% compared to 50%RH. (
  • Saccharin Clearance time in low humidity was significantly higher in old than in young men. (
  • abstract = "We show that the daily average air humidity fluctuations exhibit nontrivial 1/fα behavior which is different from the spectral properties of other meteorological quantities. (