Air Microbiology: The presence of bacteria, viruses, and fungi in the air. This term is not restricted to pathogenic organisms.Microbiology: The study of microorganisms such as fungi, bacteria, algae, archaea, and viruses.Air: The mixture of gases present in the earth's atmosphere consisting of oxygen, nitrogen, carbon dioxide, and small amounts of other gases.Microbiological Techniques: Techniques used in microbiology.Air Pollutants: 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.Air Pollution: 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.Bacteriology: The study of the structure, growth, function, genetics, and reproduction of bacteria, and BACTERIAL INFECTIONS.Laboratories, Hospital: Hospital facilities equipped to carry out investigative procedures.Laboratories: Facilities equipped to carry out investigative procedures.Bacteria: One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.Bacteriological Techniques: Techniques used in studying bacteria.Embolism, Air: Blocking of a blood vessel by air bubbles that enter the circulatory system, usually after TRAUMA; surgical procedures, or changes in atmospheric pressure.Bacteria, AerobicBacterial Infections: Infections by bacteria, general or unspecified.Air Movements: The motion of air currents.Air Pollution, Indoor: The contamination of indoor air.Bacteria, AnaerobicLaboratory Infection: Accidentally acquired infection in laboratory workers.Anti-Bacterial Agents: Substances that reduce the growth or reproduction of BACTERIA.Clinical Laboratory Techniques: Techniques used to carry out clinical investigative procedures in the diagnosis and therapy of disease.Environmental Microbiology: The study of microorganisms living in a variety of environments (air, soil, water, etc.) and their pathogenic relationship to other organisms including man.Food Microbiology: The presence of bacteria, viruses, and fungi in food and food products. This term is not restricted to pathogenic organisms: the presence of various non-pathogenic bacteria and fungi in cheeses and wines, for example, is included in this concept.Gram-Negative Bacteria: Bacteria which lose crystal violet stain but are stained pink when treated by Gram's method.Air Sacs: Thin-walled sacs or spaces which function as a part of the respiratory system in birds, fishes, insects, and mammals.Microbial Sensitivity Tests: Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses).Air Conditioning: 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)Device Approval: Process that is gone through in order for a device to receive approval by a government regulatory agency. This includes any required preclinical or clinical testing, review, submission, and evaluation of the applications and test results, and post-marketing surveillance. It is not restricted to FDA.Equipment Safety: Freedom of equipment from actual or potential hazards.Fungi: 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.Culture Media: Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN.Automation: Controlled operation of an apparatus, process, or system by mechanical or electronic devices that take the place of human organs of observation, effort, and decision. (From Webster's Collegiate Dictionary, 1993)Mycology: The study of the structure, growth, function, genetics, and reproduction of fungi, and MYCOSES.Gram-Negative Bacterial Infections: Infections caused by bacteria that show up as pink (negative) when treated by the gram-staining method.Communicable DiseasesEvaluation Studies as Topic: Studies determining the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. For drugs and devices, CLINICAL TRIALS AS TOPIC; DRUG EVALUATION; and DRUG EVALUATION, PRECLINICAL are available.Enterobacteriaceae: A family of gram-negative, facultatively anaerobic, rod-shaped bacteria that do not form endospores. Its organisms are distributed worldwide with some being saprophytes and others being plant and animal parasites. Many species are of considerable economic importance due to their pathogenic effects on agriculture and livestock.Clinical Laboratory Information Systems: Information systems, usually computer-assisted, designed to store, manipulate, and retrieve information for planning, organizing, directing, and controlling administrative and clinical activities associated with the provision and utilization of clinical laboratory services.Staphylococcus: A genus of gram-positive, facultatively anaerobic, coccoid bacteria. Its organisms occur singly, in pairs, and in tetrads and characteristically divide in more than one plane to form irregular clusters. Natural populations of Staphylococcus are found on the skin and mucous membranes of warm-blooded animals. Some species are opportunistic pathogens of humans and animals.Air Pollutants, Occupational: Air pollutants found in the work area. They are usually produced by the specific nature of the occupation.Gram-Positive Bacteria: Bacteria which retain the crystal violet stain when treated by Gram's method.Water Microbiology: The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms.Medical Laboratory Personnel: Health care professionals, technicians, and assistants staffing LABORATORIES in research or health care facilities.History, 20th Century: Time period from 1901 through 2000 of the common era.Bacterial Typing Techniques: Procedures for identifying types and strains of bacteria. The most frequently employed typing systems are BACTERIOPHAGE TYPING and SEROTYPING as well as bacteriocin typing and biotyping.Bacteremia: The presence of viable bacteria circulating in the blood. Fever, chills, tachycardia, and tachypnea are common acute manifestations of bacteremia. The majority of cases are seen in already hospitalized patients, most of whom have underlying diseases or procedures which render their bloodstreams susceptible to invasion.Staphylococcal Infections: Infections with bacteria of the genus STAPHYLOCOCCUS.Cross Infection: Any infection which a patient contracts in a health-care institution.MycosesAir Ionization: The dissociation of molecules in the air into positive and negative ions under the influence of an electric field.Air Bags: Automotive safety devices consisting of a bag designed to inflate upon collision and prevent passengers from pitching forward. (American Heritage Dictionary, 1982)Porphyromonas: A genus of gram-negative, anaerobic, nonsporeforming, nonmotile rods or coccobacilli. Organisms in this genus had originally been classified as members of the BACTEROIDES genus but overwhelming biochemical and chemical findings indicated the need to separate them from other Bacteroides species, and hence, this new genus was created.Quality Control: A system for verifying and maintaining a desired level of quality in a product or process by careful planning, use of proper equipment, continued inspection, and corrective action as required. (Random House Unabridged Dictionary, 2d ed)Drug Resistance, Bacterial: The ability of bacteria to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).Environmental Monitoring: 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.Sensitivity and Specificity: Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)Hospitals, Federal: Hospitals controlled by agencies and departments of the U.S. federal government.Specimen Handling: Procedures for collecting, preserving, and transporting of specimens sufficiently stable to provide accurate and precise results suitable for clinical interpretation.Abscess: Accumulation of purulent material in tissues, organs, or circumscribed spaces, usually associated with signs of infection.DNA, Bacterial: Deoxyribonucleic acid that makes up the genetic material of bacteria.Particulate Matter: 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.Ethmoid Sinusitis: Inflammation of the NASAL MUCOSA in the ETHMOID SINUS. It may present itself as an acute (infectious) or chronic (allergic) condition.Wound Infection: Invasion of the site of trauma by pathogenic microorganisms.History of MedicineHistory, 19th Century: Time period from 1801 through 1900 of the common era.Blood: The body fluid that circulates in the vascular system (BLOOD VESSELS). Whole blood includes PLASMA and BLOOD CELLS.Medical Laboratory Science: The specialty related to the performance of techniques in clinical pathology such as those in hematology, microbiology, and other general clinical laboratory applications.Maxillary Sinusitis: Inflammation of the NASAL MUCOSA in the MAXILLARY SINUS. In many cases, it is caused by an infection of the bacteria HAEMOPHILUS INFLUENZAE; STREPTOCOCCUS PNEUMONIAE; or STAPHYLOCOCCUS AUREUS.Air Pressure: 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.Serology: The study of serum, especially of antigen-antibody reactions in vitro.Reagent Kits, Diagnostic: Commercially prepared reagent sets, with accessory devices, containing all of the major components and literature necessary to perform one or more designated diagnostic tests or procedures. They may be for laboratory or personal use.RNA, Ribosomal, 16S: Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.Staphylococcus aureus: Potentially pathogenic bacteria found in nasal membranes, skin, hair follicles, and perineum of warm-blooded animals. They may cause a wide range of infections and intoxications.Gentian Violet: A dye that is a mixture of violet rosanilinis with antibacterial, antifungal, and anthelmintic properties.Molecular Diagnostic Techniques: MOLECULAR BIOLOGY techniques used in the diagnosis of disease.Peptostreptococcus: A genus of gram-positive, anaerobic, coccoid bacteria that is part of the normal flora of humans. Its organisms are opportunistic pathogens causing bacteremias and soft tissue infections.Agar: A complex sulfated polymer of galactose units, extracted from Gelidium cartilagineum, Gracilaria confervoides, and related red algae. It is used as a gel in the preparation of solid culture media for microorganisms, as a bulk laxative, in making emulsions, and as a supporting medium for immunodiffusion and immunoelectrophoresis.Gram-Positive Bacterial Infections: Infections caused by bacteria that retain the crystal violet stain (positive) when treated by the gram-staining method.Polymerase Chain Reaction: In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.Nitrogen Dioxide: 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.Coagulase: Enzymes that cause coagulation in plasma by forming a complex with human PROTHROMBIN. Coagulases are produced by certain STAPHYLOCOCCUS and YERSINIA PESTIS. Staphylococci produce two types of coagulase: Staphylocoagulase, a free coagulase that produces true clotting of plasma, and Staphylococcal clumping factor, a bound coagulase in the cell wall that induces clumping of cells in the presence of fibrinogen.Sputum: Material coughed up from the lungs and expectorated via the mouth. It contains MUCUS, cellular debris, and microorganisms. It may also contain blood or pus.Pathology Department, Hospital: Hospital department which administers and provides pathology services.Hospital Bed Capacity, 500 and overNeisseria: A genus of gram-negative, aerobic, coccoid bacteria whose organisms are part of the normal flora of the oropharynx, nasopharynx, and genitourinary tract. Some species are primary pathogens for humans.Air Filters: Barriers used to separate and remove PARTICULATE MATTER from air.Suppuration: A pathologic process consisting in the formation of pus.Equipment Contamination: The presence of an infectious agent on instruments, prostheses, or other inanimate articles.Diagnostic Errors: Incorrect diagnoses after clinical examination or technical diagnostic procedures.Soil Microbiology: The presence of bacteria, viruses, and fungi in the soil. This term is not restricted to pathogenic organisms.Sulfur Dioxide: A highly toxic, colorless, nonflammable gas. It is used as a pharmaceutical aid and antioxidant. It is also an environmental air pollutant.Mouth: The oval-shaped oral cavity located at the apex of the digestive tract and consisting of two parts: the vestibule and the oral cavity proper.Retrospective Studies: Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.United States Food and Drug Administration: An agency of the PUBLIC HEALTH SERVICE concerned with the overall planning, promoting, and administering of programs pertaining to maintaining standards of quality of foods, drugs, therapeutic devices, etc.Ozone: 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).Urine: Liquid by-product of excretion produced in the kidneys, temporarily stored in the bladder until discharge through the URETHRA.Cystic Fibrosis: An autosomal recessive genetic disease of the EXOCRINE GLANDS. It is caused by mutations in the gene encoding the CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR expressed in several organs including the LUNG, the PANCREAS, the BILIARY SYSTEM, and the SWEAT GLANDS. Cystic fibrosis is characterized by epithelial secretory dysfunction associated with ductal obstruction resulting in AIRWAY OBSTRUCTION; chronic RESPIRATORY INFECTIONS; PANCREATIC INSUFFICIENCY; maldigestion; salt depletion; and HEAT PROSTRATION.Sterilization: The destroying of all forms of life, especially microorganisms, by heat, chemical, or other means.

Influence of crossdrafts on the performance of a biological safety cabinet. (1/924)

A biological safety cabinet was tested to determine the effect of crossdrafts (such as those created by normal laboratory activity or ventilation) upon the ability of the cabinet to protect both experiments and investigators. A simple crossdraft, controllable from 50 to 200 feet per min (fpm; 15.24 to 60.96 m/min), was created across the face of the unit. Modifications of standardized procedures involving controlled bacterial aerosol challenges provided stringent test conditions. Results indicated that, as the crossflow velocities exceeded 100 fpm, the ability of the cabinet to protect either experiments or investigators decreased logarithmically with increasing crossdraft speed. Because 100 fpm is an airspeed easily achieved by some air conditioning and heating vents (open windows and doorways may create velocities far in excess of 200 fpm), the proper placement of a biological safety cabinet within the laboratory--away from such disruptive air currents--is essential to satisfactory cabinet performance.  (+info)

How a fungus escapes the water to grow into the air. (2/924)

Fungi are well known to the casual observer for producing water-repelling aerial moulds and elaborate fruiting bodies such as mushrooms and polypores. Filamentous fungi colonize moist substrates (such as wood) and have to breach the water-air interface to grow into the air. Animals and plants breach this interface by mechanical force. Here, we show that a filamentous fungus such as Schizophyllum commune first has to reduce the water surface tension before its hyphae can escape the aqueous phase to form aerial structures such as aerial hyphae or fruiting bodies. The large drop in surface tension (from 72 to 24 mJ m-2) results from self-assembly of a secreted hydrophobin (SC3) into a stable amphipathic protein film at the water-air interface. Other, but not all, surface-active molecules (that is, other class I hydrophobins and streptofactin from Streptomyces tendae) can substitute for SC3 in the medium. This demonstrates that hydrophobins not only have a function at the hyphal surface but also at the medium-air interface, which explains why fungi secrete large amounts of hydrophobin into their aqueous surroundings.  (+info)

Contaminations occurring in fungal PCR assays. (3/924)

Successful in vitro amplification of fungal DNA in clinical specimens has been reported recently. In a collaboration among five European centers, the frequency and risk of contamination due to airborne spore inoculation or carryover contamination in fungal PCR were analyzed. The identities of all contaminants were specified by cycle sequencing and GenBank analysis. Twelve of 150 PCR assays that together included over 2,800 samples were found to be contaminated (3.3% of the negative controls were contaminated during the DNA extraction, and 4.7% of the PCR mixtures were contaminated during the amplification process). Contaminants were specified as Aspergillus fumigatus, Saccharomyces cerevisiae, and Acremonium spp. Further analysis showed that commercially available products like zymolyase powder or 10x PCR buffer may contain fungal DNA. In conclusion, the risk of contamination is not higher in fungal PCR assays than in other diagnostic PCR-based assays if general precautions are taken.  (+info)

Density and molecular epidemiology of Aspergillus in air and relationship to outbreaks of Aspergillus infection. (4/924)

After five patients were diagnosed with nosocomial invasive aspergillosis caused by Aspergillus fumigatus and A. flavus, a 14-month surveillance program for pathogenic and nonpathogenic fungal conidia in the air within and outside the University Hospital in Rotterdam (The Netherlands) was begun. A. fumigatus isolates obtained from the Department of Hematology were studied for genetic relatedness by randomly amplified polymorphic DNA (RAPD) analysis. This was repeated with A. fumigatus isolates contaminating culture media in the microbiology laboratory. The density of the conidia of nonpathogenic fungi in the outside air showed a seasonal variation: higher densities were measured during the summer, while lower densities were determined during the fall and winter. Hardly any variation was found in the numbers of Aspergillus conidia. We found decreasing numbers of conidia when comparing air from outside the hospital to that inside the hospital and when comparing open areas within the hospital to the closed department of hematology. The increase in the number of patients with invasive aspergillosis could not be explained by an increase in the number of Aspergillus conidia in the outside air. The short-term presence of A. flavus can only be explained by the presence of a point source, which was probably patient related. Genotyping A. fumigatus isolates from the department of hematology showed that clonally related isolates were persistently present for more than 1 year. Clinical isolates of A. fumigatus obtained during the outbreak period were different from these persistent clones. A. fumigatus isolates contaminating culture media were all genotypically identical, indicating a causative point source. Knowledge of the epidemiology of Aspergillus species is necessary for the development of strategies to prevent invasive aspergillosis. RAPD fingerprinting of Aspergillus isolates can help to determine the cause of an outbreak of invasive aspergillosis.  (+info)

Microscopic fungi in dwellings and their health implications in humans. (5/924)

The article reviews the quantitative and qualitative incidence of microscopic filamentous fungi in dwellings, methods for their detection, mycotoxins, glucans and volatile organic compounds produced by microscopic fungi in the indoor air of homes. Characteristics and properties of the most important species of fungi in dwellings (Alternaria spp., Aspergillus spp., Cladosporium spp., Fusarium spp., Penicillium spp., Stachybotrys spp., and Wallemia spp.) and the health problems of occupants of the "moldy homes are also discussed.  (+info)

Exposure to airborne microorganisms and volatile organic compounds in different types of waste handling. (6/924)

Occupational exposure of workers to airborne microorganisms and volatile organic compounds (VOC) in different types of waste treatment situations was examined during summer time. Microorganisms were collected as stationary samples using a six-stage Andersen impactor, while for VOCs both personal and stationary sampling was conducted. The exposure at the waste handling facility was considerably greater than at landfill sites or in waste collection. The concentrations of viable fungi were maximally 10(5) cfu/m3, and the concentrations of both total culturable bacteria and Gram-negative bacteria exceeded the proposed occupational exposure limit values (OELV), being 10(4) and 10(3) cfu/m3, respectively. Exposure to VOCs in the waste handling facility was three times higher than at the landfill sites, being at highest 3000 microg/m3, considered to be the limit for discomfort. The use of personal protective equipment at work, thorough hand washing and changing clothes after the work shift are strongly recommended in the waste handling facility and the landfill sites.  (+info)

Application of the classic Limulus test and the quantitative kinetic chromogenic LAL method for evaluation of endotoxin concentration in indoor air. (7/924)

The classic (gel-clot procedure) Limulus test (CLT) and the quantitative kinetic chromogenic LAL method (KQCL) used for the evaluation of bacterial endotoxin concentration in the indoor air of dwellings were compared. The scientific procedure included analyses of 40 air samples supplemented by the analysis of 20 sample duplicates (selected at random) which were taken during the fall season from 10 flats located in 3 towns of the Upper Silesian region (southern Poland). The particulate aerosol probes were sampled by Harvard impactor and Casella sampler. The same samples were analyzed in the Netherlands using the quantitative kinetic chromogenic LAL method, and in Poland using the classic Limulus test. Comparison of both methods revealed that the quantitative kinetic chromogenic LAL method was more precise, with better reproducibility (the coefficient of variation between analyses of the main probe and its duplicate was over two times smaller in the KQCL method than in the CLT method), fully automated in the phase of analysis and data reading, and faster and more effective than the classic Limulus test. Nevertheless, on the basis of the obtained results, the usefulness of the classic Limulus method for assessment of the degree of pollution of indoor air with bacterial endotoxin seems to be confirmed as in the majority of examined samples (21 out 40) the results obtained by both methods were of the same order of magnitude, and in the remaining 19 samples did exceed one order of magnitude. Thus, the data received by means of the classic Limulus test may be regarded as acceptable.  (+info)

Risk of infection from heavily contaminated air. (8/924)

In a factory processing shea nuts the dust concentrations were found to be up to 145 mg/m3 [80% respirable (1--5 micrometer)]. Bacterial examination of the dust revealed that under the worst conditions observed a worker might inhale 350,000 bacteria per 8 h. Of these, 3,000 were Ps. aeruginosa and 1,500 Salmonella spp. of nine different types. The possible health effects of these findings are discussed.  (+info)

*Indoor air quality

Microbiology of the Indoor Environment, microbe.net Sears, CL (2005). "A dynamic partnership: celebrating our gut flora". ... When outdoor air is polluted, then bringing in more outdoor air can actually worsen the overall quality of the indoor air and ... Indoor air quality (IAQ) is a term which refers to the air quality within and around buildings and structures, especially as it ... The use of air filters can trap some of the air pollutants. The Department of Energy's Energy Efficiency and Renewable Energy ...

*List of MeSH codes (G01)

... air microbiology MeSH G01.273.540.274.332 --- food microbiology MeSH G01.273.540.274.555 --- soil microbiology MeSH G01.273. ... microbiology MeSH G01.273.540.177 --- bacteriology MeSH G01.273.540.274 --- environmental microbiology MeSH G01.273.540.274.110 ... industrial microbiology MeSH G01.273.540.553 --- mycology MeSH G01.273.540.859 --- virology MeSH G01.273.595 --- molecular ... 540.274.777 --- water microbiology MeSH G01.273.540.330 --- genetics, microbial MeSH G01.273.540.460 --- ...

*Branches of microbiology

... or aquatic microbiology): The study of those microorganisms that are found in water. Aeromicrobiology (or air microbiology): ... Soil microbiology: the study of those microorganisms that are found in soil. Veterinary microbiology: the study of the role of ... The branches of microbiology can be classified into pure and applied sciences. Microbiology can be also classified based on ... Nano microbiology: the study of those organisms on nano level. Predictive microbiology: the quantification of relations between ...

*Purbrook Park School

President from 1985-7 of the Genetical Society and from the 2000-3 of the Society for General Microbiology Air Vice-Marshal ... Chief of Air Staff from 1986-9 of the Royal New Zealand Air Force Dr Reginald Rainey OBE, entomologist, President from 1979-81 ...

*Microbiomes of the built environment

Pathogen Research in the Built Environment Indoor Air Journal Microbiology of the Built Environment paper collection at Biomed ... Indoor Air Quality The study of Indoor air quality and the health impact of such air quality is linked at least in part to ... The American Academy of Microbiology had a colloquium on this topic in September 2015 and published a report "Microbiology of ... "Microbial communities related to volatile organic compound emission in automobile air conditioning units". Applied Microbiology ...

*Auramine phenol stain

... potassium permanganate for 30 seconds Rinse and air dry "Microbiology training log". Retrieved 19 November 2012. "Comparison of ... Auramine phenol stain is a stain used in clinical microbiology and histology to identify tuberculosis mycobacteria. There are ...

*Aspergillus ochraceus

"Prevention of Aspergillus ochraceus growth on and Ochratoxin a contamination of sausages using ozonated air". Food microbiology ... Ozonated air can be used to prevent the growth of this fungus on foods products like sausages. In another study they found that ... Journal of basic microbiology. 54 (1): 66-71. doi:10.1002/jobm.201200320. PMID 23463662. Michelin, M; Polizeli Mde, L; Ruzene, ... Applied microbiology. 23 (6): 1067-72. PMC 380508 . PMID 5064985. Moslem, MA; Mashraqi, A; Abd-Elsalam, KA; Bahkali, AH; ...

*Roseomonas aerophila

nov., isolated from air. International Journal of Systematic and Evolutionary Microbiology. 2013 Jun 1;63(6):2334-7. Yoo SH, ... nov., isolated from an air sample. International Journal of Systematic and Evolutionary Microbiology. 2008 Jun 1;58(6):1482-5. ... It was first isolated from an air sample in Taean County, South Korea, and the new species was proposed in 2013. The species ... name comes from Latin aer (air) and philos (loving). Another species of Roseomonas, R. aerilata, was also isolated from the air ...

*Roseomonas

nov., isolated from air. International Journal of Systematic and Evolutionary Microbiology. 2013 Jun 1;63(6):2334-7. Zhang YQ, ... nov., isolated from an air sample. International Journal of Systematic and Evolutionary Microbiology. 2008 Jun 1;58(6):1482-5. ... nov., isolated from an air conditioner. International Journal of Systematic and Evolutionary Microbiology. 2017 Sep 14. Yan ZF ... air, and environmental surfaces. The following is a list of locations from which the species were first isolated: Air R. ...

*Sterilization (microbiology)

Almost all the air is removed from the chamber, because air is undesired in the moist heat sterilization process (this is one ... The standard setting for a hot air oven is at least two hours at 160 °C. A rapid method heats air to 190 °C for 6 minutes for ... Forced ventilation of hot air can be used to increase the rate at which heat is transferred to an organism and reduce the ... Ozone is used in industrial settings to sterilize water and air, as well as a disinfectant for surfaces. It has the benefit of ...

*Aeromicrobium

nov., isolated from air". International Journal of Systematic and Evolutionary Microbiology. 58 (8): 1860-1863. doi:10.1099/ijs ... nov., isolated from a ginseng field". International Journal of Systematic and Evolutionary Microbiology. 58 (9): 2025-2030. doi ... nov., isolated from dried seaweed". International Journal of Systematic and Evolutionary Microbiology. 57 (2): 337-341. doi: ...

*Aeromicrobium flavum

nov., isolated from air". International Journal of Systematic and Evolutionary Microbiology. 58 (8): 1860-1863. doi:10.1099/ijs ... Gram-positive facultatively anaerobic and non-motile bacterium from the genus of Aeromicrobium which has been isolated from air ...

*Xenophilus (bacteria)

nov., isolated from air". International Journal of Systematic and Evolutionary Microbiology. 60 (2): 327-330. doi:10.1099/ijs. ... nov., an arsenite-resistant bacterium isolated from soil". International Journal of Systematic and Evolutionary Microbiology. ...

*Friedmanniella

nov., isolated from air". International Journal of Systematic and Evolutionary Microbiology. 66 (5): 1970-5. doi:10.1099/ijsem. ... Polar microbiology the ecology, biodiversity, and bioremediation potential of microorganisms in extremely cold environments. ... International Journal of Systematic and Evolutionary Microbiology. 66: 3057-62. doi:10.1099/ijsem.0.001146. PMID 27169592. ...

*Xenophilus aerolatus

nov., isolated from air". International Journal of Systematic and Evolutionary Microbiology. 60 (2): 327-330. doi:10.1099/ijs. ... rod-shaped and motile bacterium from the genus Xenophilus which has been isolated from air from Suwon in Korea. Parte, A.C. " ...

*Hot air oven

Textbook of Microbiology by Prof. C P Baveja, ISBN 81-7855-266-3 Textbook of Microbiology by Ananthanarayan and Panikar, ISBN ... There is also an air filled space in between to aid insulation. An air circulating fan helps in uniform distribution of the ... The standard settings for a hot air oven are: 1.5 to 2 hours at 160 °C (320 °F) 6 to 12 minutes at 190 °C (374 °F) ....plus the ... Hot air ovens are electrical devices which use dry heat to sterilize. They were originally developed by Pasteur. Generally, ...

*Adhaeribacter

Nov., isolated from air samples". International Journal of Systematic and Evolutionary Microbiology. 60 (10): 2424-2429. doi: ... air; Greek masculine gender adjective φίλος, loving; New Latin masculine gender adjective aerophilus, air-loving.) A. aquaticus ... 2010, ; Greek noun 'aer, aeros (ἀήρ, ἀέρος) air; Latin participle masculine gender adjective latus, carried; New Latin ... 2009, ; Latin masculine gender adjective terreus, of earth.) Bacterial taxonomy Microbiology Classification of Genera AC entry ...

*Naxibacter suwonensis

nov., isolated from air samples". International Journal of Systematic and Evolutionary Microbiology. 60 (8): 1938-1943. doi: ... and rod-shaped bacterium which was isolated with Massilia jejuensis from air samples on the Jeju Island and Suwon region of ...

*Epicoccum nigrum

for the treatment of oily effluent in an air-lift reactor". Brazilian Journal of Microbiology. 44 (2): 607-612. doi:10.1590/ ... In indoor environments, E. nigrum has been found on paintings and wallpaper, cotton and textiles, in dust, and in air. It is ... Journal of Applied Microbiology. 106 (2): 592-605. doi:10.1111/j.1365-2672.2008.04030.x. Stupar, M.; Grbić, M. Lj.; Džamić, A ...

*Roseomonas aerofrigidensis

nov., isolated from an air conditioner. International Journal of Systematic and Evolutionary Microbiology. 2017 Sep 14;67(10): ... The bacteria was isolated first isolated from a laboratory air-conditioning system in South Korea, and the new species name was ... Another species of Roseomonas, R. aeriglobus, was also isolated from an air conditioner. The optimum growth temperature for R. ... nov., isolated from an air-conditioning system. Antonie van Leeuwenhoek. 2017 Oct 5:1-9.. ...

*Roseomonas aeriglobus

nov., isolated from an air conditioner. International Journal of Systematic and Evolutionary Microbiology. 2017 Sep 14;67(10): ... Aeriglobus was chosen from the Latin aer (air) and globus (a sphere), to reference the shape of the bacteria, and that they ... The bacteria were first isolated from a laboratory air-conditioning system in South Korea, and proposed as a new species in ... nov., isolated from an air-conditioning system. Antonie van Leeuwenhoek. 2017 Oct 5:1-9. Hyeon JW, Jeon CO. Roseomonas ...

*Roseomonas aerilata

nov., isolated from an air sample. International Journal of Systematic and Evolutionary Microbiology. 2008 Jun 1;58(6):1482-5. ... It was first isolated from an air sample in an urban environment in Suwon, South Korea, and the new species was proposed in ... The species name comes from Latin aer (air) and lata (carried), to reference the fact that the species was first isolated from ... an air sample. The optimum growth temperature for R. aerilata is 30 °C, but can grow in the 5-35 °C range. The optimum pH range ...

*Noviherbaspirillum suwonense

nov., isolated from an air sample". International Journal of Systematic and Evolutionary Microbiology. 64 (Pt 5): 1552-8. doi: ... mesophilic and motile bacterium from the genus of Noviherbaspirillum which has been isolated from air in Suwon in Korea. Parte ...

*Cellulomonas aerilata

nov., isolated from an air sample". International journal of systematic and evolutionary microbiology. 58 (Pt 12): 2925-9. doi: ... aerobic and motile bacterium from the genus of Cellulomonas which has been isolated from air from Suwon in Korea. Parte, A.C. " ...

*Massilia norwichensis

nov., isolated from an air sample". International Journal of Systematic and Evolutionary Microbiology. 65 (Pt 1): 56-64. doi: ... Massilia norwichensis is a Gram-negative and rod-shaped bacterium from the genus Massilia which has been isolated from air from ...

*Norovirus

It may also spread via contaminated surfaces or through the air. Risk factors include unsanitary food preparation. Diagnosis is ... Journal of Clinical Microbiology. 48 (3): 915-20. doi:10.1128/JCM.01664-09. PMC 2832421 . PMID 20053852. Hennessy EP, Green AD ... infection can follow eating food or breathing air near an episode of vomiting, even if cleaned up. The viruses continue to be ... International Journal of Food Microbiology. 108 (1): 84-91. doi:10.1016/j.ijfoodmicro.2005.10.024. PMID 16473426. Shieh Y, ...

*Mucilaginibacter

nov., isolated from a car air conditioning system". International Journal of Systematic and Evolutionary Microbiology. 66 (4): ... nov., isolated from fresh water". International Journal of Systematic and Evolutionary Microbiology. 65 (Pt 2): 698-703. doi: ... nov., isolated from vegetable soil". International Journal of Systematic and Evolutionary Microbiology. 66 (4): 1779-1784. doi: ... nov., isolated from tundra soil". International Journal of Systematic and Evolutionary Microbiology. 66 (12): 5140-5144. 1 ...
Viruses can become airborne through the release of contaminated liquids or dried material and can then be carried by air currents indoors, and outdoors. The methodology for generating, storing, and collecting viral aerosols has already been reviewed. Therefore, this chapter is focused on a critical review of the information on the role of air in the spread of vertebrate viruses. Work with airborne viruses also requires stringent safety precautions. In spite of the limitations, ultrafine threads are the best means to study the influence of atmospheric chemicals and light and irradiation on airborne viruses. According to Pike, 27% of the cases of laboratory-acquired infections were due to airborne viruses; cases in research settings accounted for more than 67% of such infections. Increasing use of recycled air will further enhance the risk of exposure of susceptible individuals to airborne viruses. Recently, alteration of the lung airway surface properties by spraying normal saline into the respiratory
Article Evaluation of Respiratory Symptoms and Their Possible Association with Residential Indoor Bioaerosol Concentrations and Other Environmental Influences. The study discussed here evaluated the presence of self-reported respiratory symptoms and ...
Merck Millipore, the Life Science division of Merck, has launched lockable ICRplus Settle Plates for viable air monitoring and personnel monitoring in clean rooms and isolators. The new plates are based on the original Merck Millipore ICR Settle Plate technology and provide semi-quantitative determination of microbial contamination. ICRplus Settle Plates feature a new two-way closure system: the
Objective: To investigate if markers of exposure to foodborne and orofecal microbes versus airborne viruses are associated with atopy and respiratory allergies.. Design: Retrospective case-control study.. Participants: 240 atopic cases and 240 non-atopic controls from a population sample of 1659 participants, all Italian male cadets aged 17-24.. Setting: Air force school in Caserta, Italy.. Main outcome measures: Serology for Toxoplasma gondii, Helicobacter pylori, hepatitis A virus, measles, mumps, rubella, chickenpox, cytomegalovirus, and herpes simplex virus type 1; skin sensitisation and IgE antibodies to relevant airborne allergens; total IgE concentration; and diagnosis of allergic asthma or rhinitis.. Results: Compared with controls there was a lower prevalence of T gondii (26% v 18%, P=0.027), hepatitis A virus (30% v 16%, P=0.004), and H pylori (18%v 15%, P=0.325) in atopic participants. Adjusted odds ratios of atopy decreased with a gradient of exposure to H pylori, T gondii, and ...
Microbial aerosols are generated during dental treatments and may represent an important source of infection. This study was designed to quantify bacterial air contamination during dental treatments in both a closed dental operatory and a multichair dental clinic. Air was sampled by using a slit type of biological air sampler. Following air...
Reclaiming wastewater is increasing in the US to combat dwindling freshwater supplies. This water potentially contains pathogenic bacteria; therefore, we evaluated the occurrence, concentration, and antimicrobial susceptibilities of Enterococcus spp.--an important opportunistic pathogen that remains a leading cause of nosocomial infections--in reclaimed water used for spray irrigation (SI). A total of 48 wastewater effluent and SI samples were collected in 2009 and 2010 from the Mid-Atlantic and Midwest regions of the US. Enterococci were isolated using membrane filtration, confirmed using biochemical tests and PCR, and tested for antimicrobial susceptibility using the Sensititre® dilution system. We detected total enterococci and vancomycin-resistant enterococci (VRE) in 68% (27/40) and 8% (3/40), respectively, of all SI samples. VRE and vancomycin-intermediate enterococci (VIE) represented 2% (1/41) and 10% (4/41), respectively, of the total enterococci recovered from all SI sites. Our ...
Ivera Medical, a medical device company, has received the FDA 510(k) clearance to begin marketing its Curos Port Protector, a medical device that decontaminates needleless intravenous access ports, and helps to prevent touch and airborne contamination. According to the company, the Curos Port Protector is designed to reduce patient exposure to the risks of hospital acquired bloodstream infections and help maintain hospital infection control protocols. Bob Rogers, CEO of Ivera Medical, said: "The Curos Port Protector market approval is a significant milestone toward the success of our company. It confirms our commitment to assist healthcare providers in their efforts to reduce bloodstream infections caused by touch or airborne contamination of needleless intravenous ports.". ...
An international research study published last week in the journal Atmospheric Environment has found that re-suspended roadside soil dust is a major source of atmospheric lead in old inner city areas.
Airborne transmission of infectious diseases is a subject of increasing interest driven by a wide range of factors including: greater understanding of the role played by indoor air and ventilation provision in the dispersal and transport mechanisms of a wide range of pathogens; changing expectations of hospital patients, particularly in developed countries; and the emergence of new or drug-resistant disease strains with the potential to spread on a global scale. Tuberculosis (TB) is an archetypal example of a disease that is transmitted by a true airborne route; primary infection occurs when droplet nuclei containing Mycobacterium tuberculosis bacilli are inhaled. These tiny particles (typically ,5 µm in diameter) can remain suspended in the air for long periods of time with local airflow pathways inside a building determining their fate. TB is a particular concern as it is once again a worldwide health problem, compounded by the increased susceptibility to M. tuberculosis in HIV/AIDS patients, ...
Successful implementation of a USP ,797, environmental sampling program starts with an understanding of the different tests required by USP ,797,. The most basic division between the required tests is nonviable particle sampling and viable particle sampling. Nonviable airborne particle testing seeks to measure the density of airborne particles based strictly on their size (0.5 µm in diameter or larger) without regard for the nature of the particles themselves. Viable particle sampling only measures those particles that are living organisms (typically bacterial and fungal spores). USP ,797, breaks viable particle testing into several different categories, each of which is designed to test a separate aspect of pharmaceutical compounding for potential contamination. These tests are viable airborne particle testing, viable surface particle testing, gloved fingertip sampling and media-fill testing (also called aseptic manipulation testing).. Nonviable airborne particle sampling must be performed by ...
In UVGI systems the lamps are shielded or are in environments that limit exposure, such as a closed water tank or closed air circulation system, often with interlocks that automatically shut off the UV lamps if the system is opened for access by humans.. For human beings, skin exposure to germicidal wavelengths of UV light can produce rapid sunburn and skin cancer[citation needed]. Exposure of the eyes to this UV radiation can produce extremely painful inflammation of the cornea and temporary or permanent vision impairment, up to and including blindness in some cases. UV can damage the retina of the eye.. Another potential danger is the UV production of ozone, which can be harmful to health. The US Environmental Protection Agency designated 0.05 parts per million (ppm) of ozone to be a safe level. Lamps designed to release UVC and higher frequencies are doped so that any UV light below 254 nm wavelengths will not be released, to minimize ozone production. A full-spectrum lamp will release all UV ...
Results for microbial air sampling (air sampling) equipment from Emtek, Buck BioAire, Climet and other leading brands. Compare and contact a supplier near you (monitoring and testing)
To provide useful information during military operations, or as part of other security situations, a biological aerosol detector has to respond within seconds or minutes to an attack by virulent biological agents, and with low false alarms. Within this time frame, measuring virulence of a known microorganism is extremely difficult, especially if the microorganism is of unknown antigenic or nucleic acid properties. Measuring "live" characteristics of an organism directly is not generally an option, yet only viable organisms are potentially infectious. Fluorescence based instruments have been designed to optically determine if aerosol particles have viability characteristics. Still, such commercially available biological aerosol detection equipment needs to be improved for their use in military and civil applications. Air has an endogenous population of microorganisms that may interfere with alarm software technologies. To design robust algorithms, a comprehensive knowledge of the airborne ...
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
We found that the atmosphere is a vector for the long-range transport -- typically 4,000Km -- of airborne microbes, including bacteria and fungi among others, says Carlos Duarte of KAUSTs Red Sea Research Center, who led the study. "Even in the open ocean, more than half of the microbial load in the atmosphere is derived from land." Atmospheric transport may be important in redistributing pathogens across the globe, he adds.. The team found an average of 67,000 prokaryotes (non-nucleus-containing single-celled organisms like bacteria) per cubic meter of sampled air over the oceans compared to 190,000 bacteria per cubic meter of air over land. They also found an average of 32,000 eukaryotes (nucleus-containing microbes like fungi) per cubic meter of sampled air over the oceans compared to 240,000 fungal spores found per cubic meter of atmosphere over land.. The maximum values of eukaryotes were found over the North Atlantic and East Pacific, most likely affected by African and Asian dust-related ...
Presenter: Kimberly Garrett Paper: Metal Concentrations in e-Cigarette Liquid and Aerosol Samples: The Contribution of Metallic Coils Authors: Pablo Olmedo, Walter Goessler, Stefan Tanda, Maria Grau-Perez, Stephanie Jarmul, Angela Aherrera, Rui Chen, Mark...
Airborne mobile viruses have been increasing in complexity at a surprising pace. In this article, Cyrus Peikari analyzes the new Crossover Trojan, which is the first malware that simultaneously infects both Windows PCs and Windows Mobile handheld devices.
... - Modèle Spin Air (). Its special design of the holes combined with slow rotation of the plate allows using 100% of the surface compared with the 5% of the still devices.
Biological Aerosols and Morgellons Syndrome Morgellons disease, a particularly horrific condition, seems to be dormant in all of our bodies and has been identified in samples of chemical trails administered to our atmosphere via military airplanes. This has all been documented by a presidential award winning toxicologist, Hildegarde Staninger. The Air Force Wants Your LOV:…
We demonstrate experimentally the first range-resolved detection and identification of biological aerosols in the air by non-linear lidar. Ultra-short terawatt laser pulses are used to induce two-phot
I was told nitrifying bacteria from various ecologies can only cross waterways via physical transfer, they desiccate in the air if attached to suspended dirt particles and they arent spore formers to xfer that way, but this seems limiting for such a cornerstone organism. I want to know if there is -any- airborne contamination pathway for specifically the nitrifying bacteria in marine or freshwater species ...
Dycems polymeric flooring has been scientifically proven to be the most effective, long lasting and high performance method of minimising foot, wheel and airborne contamination. All Dycem products incorporate BiomasterTM protection. This highly effective anti-microbial has been proven to inhibit the growth of over 50 organisms including Salmonella, E.coli, Listeria, Campylobacter, Pseudomonas, A.Niger (black spot mould growth), Algae and MRSA.. Dycem is internationally recognised under the ISO 9001:2000 standard. Thats why we are confident of offering you genuine assistance on the products most suited to your facilities.. ...
A survey is presented with data from 27 operating rooms in four county councils, where air flows, concentration of airborne viable particles and used clothing systems have been given from 111 ongoing surgeries. With the results from the survey, a simple mathematical expression based upon the dilution principle has been established to predict the concentration of airborne viable particles present in the operating room during ongoing surgery. This expression has shown relatively good agreemtn with reported results from ongoing surgery.
A newly discovered strain of virulent airborne fungi that has already killed several people in Oregon in the US Pacific Northwest could reach California and other areas, scientists warn.
VidaShield is a fast, 24/7, active air purification system that uses UV-C to reduce bacteria and fungi from the air. This patented device is uniquely designed by combining an ultraviolet germicidal irradiation (UVGI) chamber and air circulating fans with an overhead ceiling light. No engineering controls are needed to operate VidaShield. Simply wire it up, plug it in and you are on your way to treating the air.. ...
Several types of evidence exist that support recommendations that perioperative personnel cover their head and ears in the OR. This evidence includes the fact that human skin and hair is naturally colonized with many bacteria, and perioperative personnel shed microorganisms into the air around them. We know airborne bacteria in the OR can fall into the operative field, contribute to the overall air contamination of the OR, and place patients at risk of surgical site infections. Completely covering the hair can reduce the number of bacteria introduced into OR air by perioperative personnel. ...
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5. All life on Earth is doomed if we do not manage to get the heck out of here. Look at it this way. If there were no Homo sapiens on the Earth all complex multicellular life on the planet will be gone in about 700 million years. Our Sun is on the main sequence, burning hydrogen into helium in its core through nuclear fusion. In doing so it turns four hydrogen protons into one helium nucleus at a temperature of 15 million oK or 27 million oF in a core with a density that is 150 times greater than that of water. Surprisingly, the Suns core only generates about 280 watts per cubic meter (a cubic meter is a bit more than a cubic yard). That means you need about 5 cubic meters of the Suns very dense core with a mass of 750,000 kg or 825 tons just to generate the heat produced by a little plug-in space heater. Since the human body generates about 120 watts of heat just sitting still, and you could squeeze lots of people into a cubic meter if you really tried, that means that the human body gives ...
Standard influenza is typically spread by people sneezing or coughing virus-laden particles into the air, which others breath in. Another way is by touching infected surfaces and then scratching your nose, eyes, face or ears. Viruses can live up to two days on surfaces which is why it is important to wash your hands and wipe down door handles, keyboards, machines, counters and other areas regularly. Another way to protect from airborne viruses is to use a spray bottle or diffuser with essential oils or natural formula. A simple spritz in the air will help neutralize those airborne critters while making your office, home or car smell great. Dont use lysol to spritz unless critical as this product as some studies have shown that continual inhalation of these chemicals has potential side effects ...
 Microorganisms live in all parts of the biosphere where there is liquid water, including soil, hot springs, on the ocean floor, high in the atmosphere and deep inside rocks within the Earths crust. Microorganisms are critical to nutrient recycling in ecosystems as they act as decomposers. As some microorganisms can fix nitrogen, they are a vital part of the nitrogen cycle, and recent studies indicate that airborne microbes may play a role in precipitation and weather.  Microbes are also exploited by people in biotechnology, both in traditional food and beverage preparation, and in modern technologies based on genetic engineering. However, pathogenic microbes are harmful, since they invade and grow within other organisms, causing diseases that kill humans, other animals and plants. But they have a lot of uses too. Lets discuss about some of them.
4 For more information contact EMSL Analytical, Inc. 1-800-220-3675 • .emsl • Contact EMSL for all your Sampling Supplies and Cassettes Air Sampling for Total Spore Counts AIR-O-CELL • The Air-O-Cell™ cassette (Product ID 8715301B) is a single-use sampling device designed for the rapid collection and analysis of a wide range of airborne particles ...
Watch the Video: Computer Viruses Go Airborne ]. Lee Rannals for redOrbit.com - Your Universe Online. University of Liverpool researchers have demonstrated how computer viruses could go airborne over WiFi networks.. The team has shown for the first time how WiFi networks could be used to make a computer virus contagious through the air, moving through densely populated areas as effectively as the common cold.. The researchers designed a virus known as "Chameleon" and simulated how it could move through these networks. They found that not only can Chameleon spread quickly between homes and businesses, but it was able to avoid detection and identify WiFi access points that are not protected by encryption and passwords.. The computer scientists performed a simulated attack on Belfast and London in a laboratory setting, finding that Chameleon behaved like an airborne virus by traveling through WiFi networks that connect households and businesses.. Densely populated areas have more access points in ...
Published: May 2nd, 2011. Research Professor Office: HPNP 4155 Phone: 352-273-9204 Email: [email protected] CV Areas of Expertise: Microbiology Virology Current Research Interests Collection and analyses of airborne viruses Avian influenza virus H5N1 and other […]. ...
Published: May 2nd, 2011. Research Professor Office: HPNP 4155 Phone: 352-273-9204 Email: [email protected] CV Areas of Expertise: Microbiology Virology Current Research Interests Collection and analyses of airborne viruses Avian influenza virus H5N1 and other […]. ...
Contagion," the realistic film that follows the rapid progress of a deadly airborne virus that kills its victims within a few days, seems to be doing pretty well at the box office!. The PG-13, 105 minute film starring Matt Damon and Gwyneth Paltrow is getting decent ratings from critics and film-goers alike.. On Rotten Tomatoes, 81% of the current 95 critics seem to think "Contagion" is a "fresh" (good) movie.. Here are a few reviews from some of Rotten Tomatoes critics:. "Takes great pains to present its situations realistically, and includes a lot of intelligent speculation about what sort of political, economic and ethical questions would be raised by such a disaster." - Lou Lumenick of the New York Post. ...
An airborne virus is rapidly turning people into zombies. Two-thirds of humanity has been wiped out. Scientists desperately look for a cure, even as their own brains deteriorate and the disease robs them of what we consider life.
In Dan Browns Inferno , an airborne virus permanently modifies the DNA in human cells in one third of the population of the world. We asked synthetic
The Infinity® sampling device is purpose built for collecting substantial and quality samples from strictures in the biliary duct during gastrointestinal endoscopy procedures.
The Infinity® sampling device is purpose built for collecting substantial and quality samples from strictures in the biliary duct during gastrointestinal endoscopy procedures.
ACTIVE SAMPLING DEFINED The collection of airborne contaminants using a mechanical device such as a pump to draw the air/contaminant mixture into or through the sampling device such as a sorbent tube, filter, impinger, or sample bag. Lets begin by defining active sampling. Active sampling is the collection….
a. Prophylactic immunization is the only means of providing continuous protection against BW threats prior to, as well as during, hostile actions. Vaccines against a number of potential BW agents are available, and others are in various stages of development. Many of these vaccines were developed for the protection of laboratory workers or individuals working where the target diseases are endemic. b. During a biological aerosol attack, the number of infectious or toxic units to which an individual is exposed may be greater than in the case of natural exposure. In addition, exposure by inhalation may represent an unnatural route of infection with many agents. The efficiency of protection afforded by most vaccines is based on normal (that is, under natural disease conditions) inoculum size and exposure. Vaccines which generally are considered effective under natural circumstances may not provide a similar degree of protection to individuals exposed to biological aerosols. c. Administration of ...
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Based on current data and WHOs risk assessment, there is no evidence to suggest sustained human-to-human transmission in communities and no evidence of airborne transmission. However, MERS-CoV is a relatively new disease and information gaps are considerable. The joint mission will bring us a step closer to gaining a better understanding of the nature of this virus ...
A gas scrubber employing liquid droplets injected into a flowing gas stream at a higher velocity than the gas velocity, having means to create a gradient of increasing pressure downstream from the droplet injection site, which gradient decelerates the gas and thereby increases the velocity of the droplets relative to the gas, thus increasing the total path length of the droplets through the gas, so as to allow substantial increase of scrubber collection efficiency without use of increased scrubber size or increased liquid droplet flow rate.
A method of filtering air includes the steps of providing a filter element, providing a pair of electrodes sandwiching the filter element, applying a DC electrostatic field to the electrodes to produce attracting forces between particulates and micro-organisms contained in the air and the filter element, and intermittently applying a sterilizing electrical field concurrently with the electrostatic field. An RF, DC pulse, or AC power supply can be used to generate the sterilizing electrical field.
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National Dog Day - Thank you to the Mold Dogs!. Air sampling and related mould inspection techniques are expensive and laboratory analysis of the samples can take up to three weeks (depending on the particular test) before the results are known.. Traditional air sampling cannot pinpoint the source of mould; it merely confirms the presence of mould in the overall space where the sample was taken. The dog, on the other hand, is trained to alert to the exact location of the mold. In situations involving isolated contamination sites the Mold Dog is most often accurate within 1-2 metres of the actual source of contamination.. This means that costly air sampling can be limited to the contaminated areas and at the same time samples can be taken at the suspected contaminated site thus ensuring a higher degree of accuracy in the air samples themselves. If destructive (bulk) sampling is preferred, then the Mold Dog provides assurance that destructive testing will not be a hit-or-miss ...
In this study we analyzed the sampling time effect on the overall performance of seven portable impactors (SMAMicroPortable, BioCulture, Microflow, MAS-100, Millipore Air Tester, SAS Super 180, and RCS High Flow) as well as a stationary impactor (BioStage) when collecting airborne bacteria and fungi from 2 to 30 minutes indoors and outdoors. Their performance was compared against the reference Bio
The authors expand on a previous commentary by clarifying the possible role that aerosol transmission might play in Ebola transmission and offer new language for discussing disease transmission. ...
Bordetella is an airborne pathogen and the best prevention is good airflow. We ensure that fresh air is pulled in through small cracks in the dog doors and exhausted through the roof to reduce the risk of infection. We also use HEPA filters during peak periods to help cleanse the air of germs. We NEVER allow dogs from different families to share water or toys, as that can also cause the spread of germs.. ...
BIOAEROSOL AIR SAMPLING An effective interpretation of biological air samples is formed primarily by two guiding principles:The comparison of indoor...
Did you know that this is one of the most important, yet one of the most underestimated factors in avoiding colds, flu and other airborne infections?
Vitroids™ discs contain viable microorganisms in a certified quantity (ISO 17025), produced under reproducible conditions (ISO Guide 34) with strains obtained from ATCC, NCTC and other collections.
The goal of the grant is to develop a new technique based on nanomaterial sorbents that allows accurate sampling of gases and vapors at low levels for...
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I am suffering from Chronic Lympomatic Lukemia. Initially in 2008 I was diagnosed with high Total count of 33000 when I was pregnant. Me and my husband consulted various doctors and conducted various scans . At that time Doctors advised that this high total count could be because of Pregnancy. And after delivering my child my count became normal and was 13000. ...
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Shank´s Sampler Set, 1 set. |div|Contains 1mL TC Supernatant vials of:|/div||div| |/div||div|73-064, clone N323A/51 (Shank1, IgG1)|br /|73-088, clone N23B/6 (Shank2, IgG1)|br /|73-109, clone N69/46 (Shank3, IgG2b)|br /|73-089, clone N23B/49
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Mobile Air Conditioning Climate Protection Partnership promotes next-generation vehicle air conditioning systems for cost-effective designs and improved service procedures to minimize refrigerant emissions. The partnership has four goals: 1) Promote next-generation mobile air conditioning systems that are better for the environment while satisfying customer safety, cost, and reliability concerns; 2) Develop cost-effective designs and improved service procedures to minimize refrigerant emissions; 3) Communicate technical progress to policymakers and the public; 4) Document current and near-term opportunities to improve the environmental performance of mobile air conditioning system design, operation, and maintenance. Partners are also identifying alternatives for the refrigerant HFC-134a, the predominant refrigerant in todays vehicle air conditioning systems. In 2004, the programme announced the Improved Mobile Air Conditioning project with goals of reducing vehicle AC fuel consumption by at ...
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Subcooled supply, install and maintain heat recovery ventilation systems which are designed to modulate the temperature and humidity of incoming fresh air to match indoor conditions. A balance is thus achieved between indoor and outdoor ambient.. The units provide for cost effective energy efficient fresh air ventilation meeting legal and comfort requirements for offices, public spaces and other commercial applications. Heat recovery units can be controlled individually or integral with an air conditioning system.. When used in conjunction with an air conditioning system, the heat recovery unit enables the cooling or heating mode placed on the air conditioning system to be reduced significantly while maintaining the required fresh air ventilation rates. The system takes out dirty indoor air and pushes in fresh outdoor air to the rooms of your building, exchanging heat and humidity between supply and exhaust air which brings outdoor air close to indoor conditions and thus recovers energy ...
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Highly pathogenic avian influenza A/H5N1 virus can cause morbidity and mortality in humans but thus far has not acquired the ability to be transmitted by aerosol or respiratory droplet ("airborne transmission") between humans. To address the concern that the virus could acquire this ability under natural conditions, we genetically modified A/H5N1 virus by site-directed mutagenesis and subsequent serial passage in ferrets. The genetically modified A/H5N1 virus acquired mutations during passage in ferrets, ultimately becoming airborne transmissible in ferrets. None of the recipient ferrets died after airborne infection with the mutant A/H5N1 viruses. Four amino acid substitutions in the host receptor-binding protein hemagglutinin, and one in the polymerase complex protein basic polymerase 2, were consistently present in airborne-transmitted viruses. The transmissible viruses were sensitive to the antiviral drug oseltamivir and reacted well with antisera raised against H5 influenza vaccine strains. ...
Edited by Julian Tang, University Hospitals Of Leicester NHS Trust, UK & Yuguo Li, University of Hong Kong, Hong Kong. Many infectious diseases, such as tuberculosis, whooping cough, Aspergillus and other fungal infections, human and avian influenza, measles, chickenpox, and some of the emerging viruses, such as Middle East Respiratory Syndrome coronavirus (MERS-CoV) can be potentially spread through aerosol transmission.. With the advent of deep-sequencing technologies these can be applied to environmental air samples using metagenomic techniques to characterise the presence and variety of airborne pathogens in the everyday air that we breathe in different environments (hospitals, clinics, homes, offices, entertainment venues, public transport - buses, trains, planes, etc.).. This series aims to explore and characterise the airborne microbiome in different environments, using different methods, in order to understand and assess the risk that such airborne pathogens may pose to both vulnerable ...
Ivera Medical Corporation, a San Diego (CA) based medical device company today announced that it received FDA 510(k) clearance to begin marketing its Curos Port Protector, an innovative medical device that decontaminates needleless intravenous (I.V.) access ports, and helps to prevent touch and airborne contamination.. The Curos Port Protector is designed to reduce patient exposure to the risks of hospital acquired bloodstream infections and help maintain hospital infection control protocols.. The Curos Port Protector market approval is a significant milestone toward the success of our company, Bob Rogers, Chief Executive Officer of Ivera Medical said. It confirms our commitment to assist healthcare providers in their efforts to reduce bloodstream infections caused by touch or airborne contamination of needleless I.V. ports.. Click here for the full press release.. More news at IVTEAM ...
Author(s): Bhangar, Seema; Adams, Rachel I; Pasut, Wilmer; Huffman, Alex; Arens, Edward A; Taylor, John W; Bruns, Tom D; Nazaroff, William W | Abstract: Humans are a prominent source of airborne biological particles in occupied indoor spaces, but few studies have quantified human bioaerosol emissions. The chamber investigation reported here employs a fluorescence-based technique to evaluate bioaerosols with high temporal and particle size resolution. In a 75-m3 chamber, occupant emission rates of coarse (2.5-10 μm) fluorescent biological aerosol particles (FBAPs) under seated, simulated office-work conditions averaged 0.9 ± 0.3 million particles per person-h. Walking was associated with a 5-6× increase in the emission rate. During both walking and sitting, 60-70% or more of emissions originated from the floor. The increase in emissions during walking (vs. while sitting) was mainly attributable to release of particles from the floor; the associated increased vigor of upper body movements also
An air conditioning unit is provided for a parked truck/boat to cool the sleeping cabin. The cabin air conditioner having a cooling unit comprising a cooling chamber with at least one insulated wall having on opposite sides there of a heat sink and a cooling block having there between thermoelectric chip(s) or a high efficient D.C. compressor or cold storage phase change material. The air conditioning unit also comprises an air intake conduit, a cool air conduit, an exhaust conduit and means of supplying power to the cooling unit. A method for cooling the. sleeping cabin through the use of the air conditioning unit disclosed in the invention is also provided.
A detailed study on the Central Air Conditioning market 2019 is expected to grow at a strong CAGR by 2025. This report exhibits a top to the bottom estimate of the Central Air Conditioning Market including empowering key patterns, Central Air Conditioning market drivers, challenges, institutionalization, administrative view, arrangement patterns, administrator contextual studies, openings, future guide, esteem chain, environment professional outlines, and Central Air Conditioning market systems. Interpret a Competitive Outlook Analysis with Sample Report: https://www.acquiremarketresearch.com/sample-request/225166/ By Type: Direct Expansion (DX) Central Air Conditioning Systems, Central Plant/Chilled Water Central Air Conditioning System By Company: York, Gree, Aermec, Airwell Group, Carrier, Trane, CIAT Group, Climaveneta, Daikin Europe (McQuay), Flakt Woods, GEA Group, Lennox Europe, The Central Air Conditioning report gives detail complete examination to territorial sections that covered The ...
The Poisson Distribution Is Applied to Improve the Estimation of Individual Cell and Micropopulation Lag Phases. . Download books free in pdf. Online library with books, university works and thousands of documents available to read online and download.
Air quality was assessed in two commercial swine-finishing barns: one naturally ventilated (NV) and one mechanically ventilated (MV). The concentrations of inhalable dust (IDC), respirable dust (RDC), airborne viable particles, carbon dioxide (CO2), and ammonia (NH3), as well as the air temperature and relative humidity (RH) inside the barns were monitored for 41 weeks. The two barns did not differ significantly (P,0.05) in IDC, RDC, and bioaerosol concentration. Overall mean levels for IDC, RDC, CO2, and NH3 were below the threshold limit values specified by the American Conference of Governmental Industrial Hygienists (ACGIH). However, some measurements exceeded the exposure limits suggested by previous researchers, especially during cold days. In general, the air quality in the two types of buildings was acceptable except under certain conditions (e.g., low ventilation rates during cold weather). In such case, workers and producers may need help or further training to ensure adequate air ...
Accuracy of mold counts & tests: a discussion of Toxic Mold Investigation Methods: are indoor mold spore counts valid ? Usually not.
Two simple instruments and methods for quantitative measurement of air-borne bacteria are described. One is a new type of apparatus named »rotor for solid media« the other is a modification of the bubbler type instrument (Fig. 1-4)...
(CIDRAP News) N-95 respirators are regarded as a key tool for protecting people from airborne influenza viruses in the event of a pandemic, but a recent study suggests that without special instruction, most people are likely to wear the devices incorrectly, limiting their effectiveness.
Abstract. Fungal spores as a prominent type of primary biological aerosol particles (PBAP) have been incorporated into the COSMO-ART (Consortium for Small-scale Modelling-Aerosols and Reactive Trace gases) regional atmospheric model. Two literature-based emission rates for fungal spores derived from fungal spore colony counts and chemical tracer measurements were used as a parameterization baseline for this study. A third, new emission parameterization for fluorescent biological aerosol particles (FBAP) was adapted to field measurements from four locations across Europe. FBAP concentrations can be regarded as a lower estimate of total PBAP concentrations. Size distributions of FBAP often show a distinct mode at approx. 3 μm, corresponding to a diameter range characteristic for many fungal spores. Previous studies for several locations have suggested that FBAP are in many cases dominated by fungal spores. Thus, we suggest that simulated FBAP and fungal spore concentrations obtained from the ...
That research had shown that the bacteria "travelled up to 4m and stayed viable for 45 minutes after being coughed into the air," says lead researcher Lidia Morawska in a university press release.. For their experiment, the researchers recruited two individuals- one of whom had cystic fibrosis, and the other of whom had a chronic pseudomonas aeruginosa infection. Airborne cough droplets were collected from both patients, although there was more focus on the patient who was infected.. Despite the droplets of infected saliva quickly losing moisture, contaminated particles remained airborne for quite some time after the infected individual coughed or sneezed, the researchers found. This was particularly the case for larger droplets.. "We found that the concentration of active bacteria in the dried droplets showed rapid decay with a 10-second half-life for most of the bacteria but a subset of bacteria had a half-life of more than 10 minutes," reveals Morawska.. LIKE STUDIES? FOLLOW STUDYFINDS.ORG ON ...
This patent search tool allows you not only to search the PCT database of about 2 million International Applications but also the worldwide patent collections. This search facility features: flexible search syntax; automatic word stemming and relevance ranking; as well as graphical results.
A cleanroom or clean room is an environment, typically used in manufacturing, including of pharmaceutical products or scientific research, as well as aerospace semiconductor engineering applications with a low level of environmental pollutants such as dust, airborne microbes, aerosol particles, and chemical vapors. More accurately, a cleanroom has a controlled level of contamination that is specified by the number of particles per cubic meter at a specified particle size. To give perspective, the ambient air outside in a typical urban environment contains 35,000,000 particles per cubic meter in the size range 0.5 μm and larger in diameter, corresponding to an ISO 9 cleanroom, while an ISO 1 cleanroom allows no particles in that size range and only 12 particles per cubic meter of 0.3 μm and smaller. The modern cleanroom was invented by American physicist Willis Whitfield. As employee of the Sandia National Laboratories, Whitfield created the initial plans for the cleanroom in 1960. Prior to ...
When the atmosphere is hot and humid, the amount of water dripping into to the condensation pan (or drip pan) increases beyond manufacturer specifications. This water needs to go somewhere because it does not just evaporate: it must drain out.. Air conditioning units are either "draw-through" or "blow-through" systems. Air is either being pushed (blow-through) or pulled (draw-through) over the coil which cools or heats the house. When the condensate does not drain out, problems pile up.. The condensation and subsequent humidity stay within the evaporative coil housing. A/C systems are not designed to maintain stagnant water. As a result, the system can start to incur major damages aggravated by the wide variations in temperature and the resulting corrosive effect on metal. As the air conditioning unit runs the evaporative coil is also collecting particulates that find their way through the systems filtration. As condensation builds, it runs off with these particulates. They find their way into ...
Fungal and bacterial aerosol particles concentrations are measured in a school classrooms at two different floors using the 6-stage Andersen impactor as a bioaersol sampler. The average bacterial concentration is higher than the average fungal concentration. The concentrations were 957 and 955 cfu/m3 for bacterial particles at first and second floors, respectively while the fungal particles concentrations were 146 and 235 cfu/m3 at first and second floors, respectively. Most of the biological particles were concentrated at the size range of respirable particles (, 5 µm ) that can penetrate into the alveoli and may cause lung diseases. The human activity is a main factor for the production of microbiological particles. Environmental factors play also a role on the fungal growth. Bacterial concentration is almost twice the guide value of WHO while the fungal concentration is underestimation.. ...
Popular and expensive ionizing air cleaners - a staple of late-night infomercials - could expose users to lung-damaging levels of ozone, and they do a poor job of actually cleaning the air, according to a study in the May issue of Consumer Reports. The magazine tested six popular ionizing cleaners and one HEPA (high-efficiency particulate air) filter. It found that two of the ionizing cleaners emit 150 to 300 parts per billion of ozone in samples taken 2 inches from the machine, while three other ionizing cleaners are in the 26-to-48-ppb range.
All human beings are exposed to a diversity of airborne microorganisms most of the time. Human exposure to a wide range of microorganisms may result in allergic, toxic or infectious desease. Filtration is an effective way to protect human beings from potentially harmful organisms. In our studies. we have examined the collection and reaerosolization characteristics of filters that are used primaril
Indoor airborne bacteria have not received as much publicity as the mould. Are indoor airborne bacteria of health significance?. Read more below….. Bacteria are found virtually in every environment including the hot springs, deep-sea hydrothermal vents, glaciers, swamps, and mines! Some heat-loving bacteria (hyperthermophiles) thrive best above 176 °F (80 °C) whereas the psychrophiles (cold-loving) can survive far below 0 °C.. In indoor environments bacteria are present in air and on surfaces. High levels of bacteria concentration indoors is an indication of high occupancy rate, poor ventilation, or poor building maintenance. Similar to mould, some bacteria are associated with water-damaged building materials.. Significance Of Airborne Bacteria. While bacteria do not receive as much publicity as mould when it comes to indoor air quality, they are a health hazard. Some are serious human pathogens and others especially the gram negative bacteria produce toxic compounds (endotoxins) from the ...
Has anyone installed the EASY WATER conditioning system. I am considering it and just wondered how it works. [email protected]
The XLERATOR hand dryer from Excel Dryer is now available with a certified high-efficiency particulate air (HEPA) filtration system.
ILEVE has been established to promote air quality in the workplace and to reduce ill health and death due to airborne contamination and hazardous substances in the working environment.
ILEVE has been established to promote air quality in the workplace and to reduce ill health and death due to airborne contamination and hazardous substances in the working environment.
Despite the most stringent use of sterile techniques, the contamination of plant cell and plant tissue cultures remain a persistent problem that can result in losses ranging from small number of cultures to the loss of whole batches. PPM™ prevents the germination of both bacteria and fungi spores. It is heat stable and therefore can be autoclaved with the media. PPM™ can be, and should be used as a standard ingredient in plant tissue culture media, and is also substantially less expensive than commonly used antibiotics. While PPM™ was principally designed to inhibit airborne contamination, waterborne contamination and contamination introduced from human contact, it can also -- in many cases -- be used to reduce endogenous contamination ...
Health experts say that customers should be very careful while selecting air-purifying home appliances. Avoid buying ozone generators because they produce the air pollutant ozone. Inhaling ozone, even in small amounts, can irritate the lungs. Health effects include throat irritation and infection, cough bouts, chest pain, breathlessness and an increased risk of respiratory infections.. Instead, opt for the high-efficiency particulate air [HEPA] filters, which are more effective in removing allergens from the air, without posing any ozone concerns. When you buy air-purifiers or home cleaning gadgets like vacuum cleaners, look for features that are developed specifically to tackle dust-mites and other such asthma-triggering allergens.. These appliances do accomplish in making your home allergen-free, thereby reducing your chances of experiencing asthmatic symptoms. However, according to health experts, though these gadgets are undoubtedly good, you must not use them as the sole means to keep ...
The HEPA (High-Efficiency Particulate Air) filter/carbon-charcoal filter pack works with ventless hood WVU-48 or WVU-96. All filters are easily remova
The history of air conditioning is a history of Carrier, and theres more behind the comfort we take for granted on a sweltering summer day than you might think. When Willis Carrier designed his first air conditioning system in 1902, his customer was a frustrated Brooklyn, N.Y. printer who couldnt print a decent color image because changes in heat and humidity kept changing the papers dimensions and misaligning the colored inks. For nearly two decades, Carriers invention that allowed us to scientifically control the temperature and humidity of our indoor environment was meant for the comfort of machines or industrial processes rather than people. Many of the advances in room and central air conditioning came in the 1950s. In 1955, William J. Levitt, then Americas leading homebuilder, predicted that air conditioning would soon become a basic feature of American homes. He was right! By 1965, 10 percent of American homes were air conditioned. By 1995, more than 75 percent of American homes were ...
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Calphostin C from Cladosporium cladosporioides 121263-19-2 safety info, Calphostin C from Cladosporium cladosporioides chemical safety search, Chemical Calphostin C from Cladosporium cladosporioides safety technical specifications ect.
Are you one of the many drivers who neglects to change their cars air filter on a regular basis? With the purchase of a new car, your sales person will normally include a maintenance schedule of things to have completed such as oil changes, tire rotations, battery checks and other standard items while your car is under warranty.. Amid respiratory concerns about outdoor air pollution, a vehicles air filter functions similarly to your lungs. A clogged air filter comes from gradual buildup of dirt and debris. It is recommended that you change your air filter every 12,000 to 15,000 miles. If you live in a rural area where you frequently travel down dirt or sandy roads, you will more than likely have to change your cars air filter more regularly. The car air filter for your engine is called an internal combustion filter. This is different from the cabin air filters that is used in your cars air conditioning system.. There are 3 types of internal combustion filters:. ...
A relatively new feature on the automotive scene, the cabin air filter is often overlooked in regular vehicle maintenance. Thats unfortunate, because the cabin air filter is just as important to the passengers as the engine air filter is to the vehicle. A cabin filter processes the air that enters the passenger compartment via the vehicles heating and air conditioning system, increasing passenger comfort by trapping particulates, pollen, and other irritants. For people with allergies and other sensitivities to airborne agents, the cabin filter represents a significant advance. Replacing the cabin air filter at the recommended interval, or sooner in areas where soot or pollen are prevalent, allows the passengers to breathe cleaner, fresher air - which makes any journey more enjoyable.. DENSO First Time Fit® replacement cabin filters are engineered for optimal airflow and filtration, meeting all OE requirements to the letter. Up to five layers of filter media are used to trap impurities down to ...
Biological Safety Cabinets and Chemical Fume Hoods. By Bukola Akinjobi, Carrie Beard, and Jennifer Roper. Biological Safety Cabinets. Biological Safety Cabinets (BSC): primary means of containment developed for working safely with infectious microorganisms. Why Use BSCs?. Slideshow 1270834 by libitha
These biological safety cabinets are designed to be hard ducted to the outside. During operation, room air is drawn into the top of the cabinet and through a supply HEPA filter. This filtered air flows downward through the work area. Room air is also drawn into the inlet grille located at the work access opening. All of the contaminated air passes through the exhaust HEPA filter. A dedicated exhaust system and remote blower discharge 100% of the filtered exhaust air from the laboratory. Since none of the air is recirculated, these biohazard cabinets may be used for work with agents treated with volatile toxic chemicals and radionuclides.. ...
[113 Pages Report] Check for Discount on China Biological Safety Cabinet Market Research Report 2017 report by QYResearch Group. The global Biological Safety Cabinet market is valued at XX...
The Purifier Axiom Class II, Type C1 is the first biological safety cabinet that can be used in a recirculating Type A mode for standard microbiological work, or can be connected to an exhaust system to function in Type B mode for handling hazardous chemical vapors or radionuclides. Because of the efficient, well-defined airflow pattern over its work surface, the Axiom is safer and easier to operate than traditional biosafety cabinets.. ...
indoor air quality manufacturers indoor air quality suppliers Directory - Browse indoor air quality products,Choose Quality indoor air quality manufacturers, suppliers, factory at B2BAGE

Environmental Microbiology - Raina M. Maier, Ian L. Pepper, Charles P. Gerba - Google KitaplarEnvironmental Microbiology - Raina M. Maier, Ian L. Pepper, Charles P. Gerba - Google Kitaplar

The authors and editors have taken the care to highlight links between environmental microbiology and topics important to our ... Urban Environmental Microbiology • Bacterial Communities in Natural Ecosystems • Global Change and Microbial Infectious Disease ... this edition relates environmental microbiology to the work of a variety of life science, ecology, and environmental science ... For microbiology and environmental microbiology courses, this leading textbook builds on the academic success of the previous ...
more infohttps://books.google.com.tr/books/about/Environmental_microbiology.html?hl=tr&id=A2zL8YBXQfoC

45th Interscience Conference on Antimicrobial Agents45th Interscience Conference on Antimicrobial Agents

air pollution, airway pressure, Anesthesia, antibiotic therapy, ARDS, asthma, bleomycin, bronchoscopy, cancer, cancer treatment ... Speaker: Michael E. Pichichero, MD, Professor of Microbiology and Immunology, University of Rochester Medical Center, Rochester ...
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Calgary, Alberta Testing Lab - Asbestos, Mold, Indoor Air Quality and Microbiology Lab ServicesCalgary, Alberta Testing Lab - Asbestos, Mold, Indoor Air Quality and Microbiology Lab Services

Testing laboratory providing quality analytical laboratory services for indoor air quality and environmental professionals. ... Air Sampling Pumps and Calibrators *Low Volume Pumps *Batteries and Charging Accessories ...
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M Air T® Cassettes | Industrial Microbiology | MerckM Air T® Cassettes | Industrial Microbiology | Merck

Cassettes for M Air T® Microbial Air Samplers are available with total count media and selective yeast and mold media. ... Microbial Air Sampler. M Air T® Pre-filled Agar Cassettes for the portable M Air T® Microbial Air Sampler are convenient in ... M Air T® Pre-filled Agar Cassettes. Request Information. The Ideal Medium for Use with the M Air T®. ... Microbiology Services Regulatory Expertise Center Find guidance on the latest regulations and standards in the food and ...
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M Air T® Cassettes | Industrial Microbiology | MerckM Air T® Cassettes | Industrial Microbiology | Merck

Cassettes for M Air T® Microbial Air Samplers are available with total count media and selective yeast and mold media. ... Microbial Air Sampler. M Air T® Pre-filled Agar Cassettes for the portable M Air T® Microbial Air Sampler are convenient in ... M Air T® Pre-filled Agar Cassettes. Request Information. The Ideal Medium for Use with the M Air T®. ... Microbiology Services Regulatory Expertise Center Find guidance on the latest regulations and standards in the food and ...
more infohttp://www.merckmillipore.com/NO/en/products/industrial-microbiology/culture-media/culture-media-for-food-and-beverage-industry/ready-to-use-media/air-monitoring/m-air-t-cassettes/5NKb.qB.VmwAAAFACAVkiQpy,nav

NABL Accredited Testing Laboratory for Water, Food, Air, Soil, MicrobiologyNABL Accredited Testing Laboratory for Water, Food, Air, Soil, Microbiology

... air, water, soil, pharma, textile, oil, microbiology, hospitals, compressed air etc. ... and extension laboratory involved in both processing a wide variety of samples representing ecological media such as air, water ...
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Sphingomonas pseudosanguinis sp. nov., isolated from the water reservoir of an air humidifier | Microbiology SocietySphingomonas pseudosanguinis sp. nov., isolated from the water reservoir of an air humidifier | Microbiology Society

... obtained from the surface of an air humidifier, was characterized taxonomically. 16S rRNA gene sequence analysis, physiological ... Join the Microbiology Society and become part of the largest microbiology community in Europe. Members receive a range of ... nov., isolated from the water reservoir of an air humidifier * Peter Kämpfer1, Uwe Meurer2, Michael Esser3, Thomas Hirsch3, ... A yellow-pigmented bacterial isolate, strain G1-2T, obtained from the surface of an air humidifier, was characterized ...
more infohttps://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.64942-0

M Air T® Cassettes | Industrial Microbiology | MilliporeSigmaM Air T® Cassettes | Industrial Microbiology | MilliporeSigma

Cassettes for M Air T® Microbial Air Samplers are available with total count media and selective yeast and mold media. ... Microbial Air Sampler. M Air T® Pre-filled Agar Cassettes for the portable M Air T® Microbial Air Sampler are convenient in ... M Air T® Pre-filled Agar Cassettes. Request Information. The Ideal Medium for Use with the M Air T®. ... Microbiology Services Regulatory Expertise Center Find guidance on the latest regulations and standards in the food and ...
more infohttp://www.emdmillipore.com/US/en/products/industrial-microbiology/culture-media/culture-media-for-food-and-beverage-industry/ready-to-use-media/air-monitoring/m-air-t-cassettes/5NKb.qB.VmwAAAFACAVkiQpy,nav

Detection of Mycoplasma hyopneumoniae by Air Sampling with a Nested PCR Assay | Applied and Environmental MicrobiologyDetection of Mycoplasma hyopneumoniae by Air Sampling with a Nested PCR Assay | Applied and Environmental Microbiology

Air was pumped through the filter for 1, 10, 60, or 100 min. The sampled air volume was 18.3 to 20.0, 183 to 200, 1,200, or ... Air sampling system.Air was sampled with polyethersulfone membranes (47-mm diameter) with a pore size of 0.2 μm (Supor200; ... Air filtration is one of the simplest and cheapest air sampling techniques available for the investigation of bioaerosols (4). ... Air sample processing for PCR assay.The filters from the air samplings and the artificially contaminated filters were ...
more infohttps://aem.asm.org/content/64/2/543?ijkey=151458150639267bb9f46ab5082062b7ec411579&keytype2=tf_ipsecsha

Effect of formaldehyde on disinfection of filtered air under positive pressure (FAPP) type house.Effect of formaldehyde on disinfection of filtered air under positive pressure (FAPP) type house.

Effect of formaldehyde liberated from formalin on disinfection of the surface of a filtered air under positive pressure (FAPP) ... Air Microbiology*. Animals. Aviadenovirus / drug effects. Disinfection / methods*. Escherichia coli / drug effects. Filtration ... Bacteria and virus used in the experiments, as well as air-borne organisms in the house, were perfectly inactivated by ... Effect of formaldehyde liberated from formalin on disinfection of the surface of a filtered air under positive pressure (FAPP) ...
more infohttp://www.biomedsearch.com/nih/Effect-formaldehyde-disinfection-filtered-air/190599.html

Investigations on the risk of virus infection in dental surgery. Preliminary data.Investigations on the risk of virus infection in dental surgery. Preliminary data.

Air Microbiology. Cross Infection / etiology. Dentistry, Operative*. Humans. Occupational Diseases. Operating Rooms. Risk. ...
more infohttp://www.biomedsearch.com/nih/Investigations-risk-virus-infection-in/7245605.html

Acceptable limits of bacteria in air quality in an RTE room - Food Microbiology - International Food Safety and Quality NetworkAcceptable limits of bacteria in air quality in an RTE room - Food Microbiology - International Food Safety and Quality Network

I am searching for some technical resources on acceptable limits of bacteria in air quality in a RTE room. Just looking for ... posted in Food Microbiology: Hi everyone, I havent been on here much but I am in need of some information. ... Acceptable limits of bacteria in air quality in an RTE room - ... Try the three links in post below ("air" and"compressed air" ... Acceptable limits of bacteria in air quality in an RTE room. Started by tisher, Oct 19 2015 07:24 PM ...
more infohttp://www.ifsqn.com/forum/index.php/topic/26229-acceptable-limits-of-bacteria-in-air-quality-in-an-rte-room/

Bacterial Diversity in Greater Mexico City Air - microBEnet: the microbiology of the Built Environment network.Bacterial Diversity in Greater Mexico City Air - microBEnet: the microbiology of the Built Environment network.

... human microbiome indoor air ISS Jessica Green legionella meetings metagenomics microBEnet microbes microbiology Microbiology of ... Bacterial Diversity in Greater Mexico City Air. By Alex Alexiev Posted in Current Topics Journal club Major Fields Research ... aerosols air antibiotic resistance antibiotics architecture art asthma bacteria bioaerosols BioBE center biofilms ... home Current Topics, Journal club, Major Fields, Research Bacterial Diversity in Greater Mexico City Air ...
more infohttp://testmicro.ucdavis.edu/bacterial-diversity-in-greater-mexico-city-air/

A possible mechanism of airway remodeling genes in resp | Open-iA possible mechanism of airway remodeling genes in resp | Open-i

Air Microbiology*. *Airway Remodeling*/genetics. *Endotoxins/adverse effects*/analysis. *Epithelial Cells/drug effects*/ ...
more infohttps://openi.nlm.nih.gov/detailedresult.php?img=PMC3924447_ijerph-11-00337-g005&req=4

Total Concentrations of Virus and Bacteria in Indoor and Outdoor Air - microBEnet: the microbiology of the Built Environment...Total Concentrations of Virus and Bacteria in Indoor and Outdoor Air - microBEnet: the microbiology of the Built Environment...

TAGS: air microbiome bacteria indoor air outdoor air virus Elisabeth Bik. After receiving my PhD at Utrecht University in The ... Filtering air and water are two very different processes, and in the conditions used in the paper, filtering air over a 0.2 μm ... human microbiome indoor air ISS Jessica Green legionella meetings metagenomics microBEnet microbes microbiology Microbiology ... 8 thoughts on "Total Concentrations of Virus and Bacteria in Indoor and Outdoor Air" * David Coil says: ...
more infohttps://microbe.net/2015/04/15/total-concentrations-of-virus-and-bacteria-in-indoor-and-outdoor-air/?replytocom=33866

Frontiers | Microbes at Surface-Air Interfaces: The Metabolic Harnessing of Relative Humidity, Surface Hygroscopicity, and...Frontiers | Microbes at Surface-Air Interfaces: The Metabolic Harnessing of Relative Humidity, Surface Hygroscopicity, and...

Yet microbial studies at surface-air interfaces are largely survival-oriented, whilst microbial metabolism has overwhelmingly ... Yet microbial studies at surface-air interfaces are largely survival-oriented, whilst microbial metabolism has overwhelmingly ... and microbes are ubiquitous at the surface-air interfaces with which we interact. ... and microbes are ubiquitous at the surface-air interfaces with which we interact. ...
more infohttps://www.frontiersin.org/articles/10.3389/fmicb.2016.01563/full

Environmental Microbiology | Microbiology Microbes Bacteria Information and Links - Microbes.infoEnvironmental Microbiology | Microbiology Microbes Bacteria Information and Links - Microbes.info

Microbiology information resources and links on microorganisms, bacteria, microbes, viruses, bacteriology, microbiology and ... Discussions relating to Environmental Microbiology topics. 2 4 n/a No new Air Microbiology Discussions ...
more infohttps://microbes.info/news/microbes-forums/environmental-microbiology

Demystifying Microbiology for the Herbal Product and Dietary Supplement IndustriesDemystifying Microbiology for the Herbal Product and Dietary Supplement Industries

Testing for compressed air. Regulations for microbial contamination and testing. * Discussion of microbiological topics related ... Demystifying Microbiology for the Herbal Product and Dietary Supplement Industries. an overview of microbiology and strategies ... Inside a microbiology laboratory. An overview of equipment, methods, certifications, and personnel qualifications/proficiency ... Maria Mendres, Laboratory Supervisor, Quality Control Microbiology, NOW Foods, Inc. * Maged Sharaf, Chief Science Officer, ...
more infohttp://ahpa.org/News/LatestNews/TabId/96/ArtMID/1179/ArticleID/612/Demystifying-Microbiology-for-the-Herbal-Product-and-Dietary-Supplement-Industries.aspx

Microbiology Society Journals | Methylobacterium currus sp. nov., isolated from a car air conditioning systemMicrobiology Society Journals | Methylobacterium currus sp. nov., isolated from a car air conditioning system

... was isolated from a car air conditioning system. This rod-shaped strain showed catalase and oxidase activities, was aerobic and ... Join the Microbiology Society and become part of the largest microbiology community in Europe. Members receive a range of ... nov., isolated from air samples in Korea. Int J Syst Evol Microbiol 2008;58:93-96 [CrossRef][PubMed] ... nov., isolated from a motor car air conditioning system. Int J Syst Evol Microbiol 2015;65:4003-4007 [CrossRef][PubMed] ...
more infohttps://ijs.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.003045

Microbiology Equipment, Microbiology Equipment Suppliers and Manufacturers at Alibaba.comMicrobiology Equipment, Microbiology Equipment Suppliers and Manufacturers at Alibaba.com

Wholesale Various High Quality Microbiology Equipment Products from Global Microbiology Equipment Suppliers and Microbiology ... BIOBASE China BBS-H1300 Laboratory LCD Microbiological Vertical Laminar Flow Safety Cabinet,Horizontal Laminar Air Flow Hood ... Tags: Microbiology Incubator For Sale , Incubator In Microbiology Lab , Bacterial Incubator Price , View larger image ... Tags: Cheap Price Microbiology Incubator , Thermostatic Price Microbiology Incubator , View larger image ...
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Inhibitory effect of silver nanoparticles mediated by atmospheric pressure air cold plasma jet against dermatophyte fungi |...Inhibitory effect of silver nanoparticles mediated by atmospheric pressure air cold plasma jet against dermatophyte fungi |...

The combined treatment of AgNPs with atmospheric pressure-air cold plasma (APACP) induced a drop in the MIC50 and MIC100 values ... Join the Microbiology Society and become part of the largest microbiology community in Europe. Members receive a range of ... 2007;). Air plasma jet with hollow electrodes at atmospheric pressure. Phys Plasmas 14: 053503 [CrossRef]. ... The Microbiology Society are delighted to be hosting FIS 2019 in Edinburgh between 11-14 November 2019. This event is a unique ...
more infohttps://www.microbiologyresearch.org/content/journal/jmm/10.1099/jmm.0.000133

Rich Corsi radio interview about Indoor Air Quality, an Overlooked Concern - microBEnet: the microbiology of the Built...Rich Corsi radio interview about "Indoor Air Quality, an Overlooked Concern" - microBEnet: the microbiology of the Built...

TAGS: air quality indoor air Rich Corsi David Coil. David Coil is a Project Scientist in the lab of Jonathan Eisen at UC Davis ... human microbiome indoor air ISS Jessica Green legionella meetings metagenomics microBEnet microbes microbiology Microbiology of ... Rich Corsi radio interview about "Indoor Air Quality, an Overlooked Concern". By David Coil Posted in Building science News ... aerosols air antibiotic resistance antibiotics architecture art asthma bacteria bioaerosols BioBE center biofilms ...
more infohttp://testmicro.ucdavis.edu/rich-corsi-radio-interview-about-indoor-air-quality-an-overlooked-concern/

Atlas of the atmosphere | The Scientist Magazine®Atlas of the atmosphere | The Scientist Magazine®

The air is teeming with microbes, and scientists are finally starting to understand how they influence everything from ... In order for the field of air microbiology to blossom, the two disciplines need to work together. Quantifying the diversity of ... "The air right outside our door is teeming with things to explore." A. Womack et al., "Biodiversity and biogeography of the ... The number of clouds in the air affects how much heat is trapped in the atmosphere as well as how much heat is reflected from ...
more infohttps://www.the-scientist.com/?articles.view/articleNo/29397/title/Atlas-of-the-atmosphere/flagPost/50339/

CLS 416CLS 416

5. Air Microbiology - Indoor and outdoor air, airborne diseases and its transmission, control of microorganisms in the air ... Eugene W. Nester et al., Microbiology-A Human Perspective, Mac Graw Hill, USA. Latest Edition ... Cano J. Raoul and Calome J.S., Microbiology, West Publishing Company, USA, Latest Edition ... 8. Food spoilage microbiology: Enumeration of food spoilage organisms ( some fruits and vegetables ) ...
more infohttp://faculty.ksu.edu.sa/62395/Pages/CLS416.aspx

Relative and contextual contribution of different sources to the composition and abundance of indoor air bacteria in residences...Relative and contextual contribution of different sources to the composition and abundance of indoor air bacteria in residences...

... the abundance of bacteria in outdoor air was positively correlated with that in indoor air, as would be expected if outdoor air ... Source-sink analysis suggested that outdoor air was the primary source of indoor air microbes in most homes. Bacterial ... Indoor air in residences harbors a diverse bacterial community originating from both outdoor and indoor sources and is strongly ... While the microorganisms in living spaces, especially those in the air, can impact health and well-being, little is known of ...
more infohttps://microbiomejournal.biomedcentral.com/articles/10.1186/s40168-015-0128-z
  • Also, re-suspension of house dust from surfaces following routine residential activities may provide another source of microorganisms in the air. (microbe.net)
  • A total of 54 air samples and 136 water samples were collected during a 12-month period (from July 2016 to June 2017, Table 1 ). (biomedcentral.com)
  • I am searching for some technical resources on acceptable limits of bacteria in air quality in a RTE room. (ifsqn.com)
  • Total Concentrations of Virus and Bacteria in Indoor and Outdoor Air - Aaron J. Prussin, II, Ellen B. Garcia, and Linsey C. Marr - Environmental Science & Technology Letters 2015, 2, 84âˆ'88. (microbe.net)
  • Just seven or ten years ago we didn't realize bacteria existed in clouds," said Anne-Marie Delort, professor of microbiology and organic chemistry at Université Blaise Pascal in France. (the-scientist.com)
  • Moreover, the abundance of bacteria in outdoor air was positively correlated with that in indoor air, as would be expected if outdoor air was the main contributor to the bacterial community in indoor bioaerosols. (biomedcentral.com)
  • The bacterial load in air increased with the number of residents, activity, and frequency of natural ventilation, and the proportion of bacteria putatively derived from skin increased with the number of residents. (biomedcentral.com)
  • Vacuum cleaning increased the signature of pet- and floor-derived bacteria in indoor air, while the frequency of natural ventilation decreased the relative abundance of tap water-derived microorganisms in air. (biomedcentral.com)
  • This makes the tools attractive for use in detection by air sampling techniques, for example, air filtration, which may adversely affect survival. (asm.org)
  • Air filtration is one of the simplest and cheapest air sampling techniques available for the investigation of bioaerosols ( 4 ). (asm.org)
  • The objective of this project was to establish a highly sensitive and specific nested PCR method and to develop a filtration-based air sampling technique for the detection of M. hyopneumoniae in the air. (asm.org)
  • There doesn't seem to be as much literature on microbes in the air as there is about other surfaces and parts of the build environment, but maybe I'm missing it. (ucdavis.edu)
  • Quantifying the diversity of microbes in the air has also proven difficult until relatively recently, said linkurl:Noah Fierer,;http://www.colorado.edu/eeb/EEBprojects/FiererLab/index.html microbial ecologist at the University of Colorado, Boulder. (the-scientist.com)
  • biotechnology: related to recombinant DNA technology or genetic engineering Pharmaceutical Microbiology Principles and Applications. (wikipedia.org)
  • This field can be further classified into the following: Plant microbiology and Plant pathology: The study of the interactions between microorganisms and plants and plant pathogens. (wikipedia.org)
  • Pharmaceutical microbiology: the study of microorganisms that are related to the production of antibiotics, enzymes, vitamins,vaccines, and other pharmaceutical products and that cause pharmaceutical contamination and spoil. (wikipedia.org)
  • While the microorganisms in living spaces, especially those in the air, can impact health and well-being, little is known of their identity and the processes that determine their assembly. (biomedcentral.com)
  • from the Department of Civil and Environmental Engineering at Virginia Tech , air samples were collected in triplicate at 9 locations in Blacksburg, VA. The sample sites were: a classroom, a daycare center, a dining facility, a health center, three single-family houses, an office, and an outdoors at an unspecified university campus. (microbe.net)
  • Discussions relating to Environmental Microbiology topics. (microbes.info)
  • In order for the field of air microbiology to blossom, the two disciplines need to work together. (the-scientist.com)
  • It captures carbon dioxide from cabin air and recovers 50% of its oxygen for use by the astronauts. (nasa.gov)
  • On the other hand, seasonality seems to be the main driver of bacterial community composition in air of this work environment. (biomedcentral.com)
  • From these and other observations, we were not able to provide strong support for our hypothesis, that members of the skin and surface communities leave a specific "microbial fingerprint" on the air of residences. (microbe.net)
  • While initial research in the field of the microbiology of the built environment has mainly focused on microbes of clinical importance, there is growing evidence that a wide variety of microbial taxa are present in the air and on surfaces within buildings. (biomedcentral.com)
  • Air was sampled with polyethersulfone membranes (pore size, 0.2 μm) mounted in filter holders. (asm.org)
  • For each sample, about 100 liter of air was pumped through a 0.2 μm pore size filter, and nucleic acids on the filters were stained with a fluorescent dye and counted. (microbe.net)
  • Thus, it appears that there exists a close connection between the skin, surface and air communities within a residential household. (microbe.net)
  • UniFrac (abundance-weighted) analysis reveals that skin, surface, and air microbiomes clustered by households. (microbe.net)
  • Domestic combustion of biomass fuels, such as wood, charcoal, crop residue and dung causes Household Air Pollution (HAP). (biomedcentral.com)
  • Household air microbial community resembles that of household surface and occupant's skin? (microbe.net)
  • Here we have summarized parts of our latest work (not all observations from manuscript are featured here) characterizing household air and surface microbiomes, as well as skin microbiomes of occupants of households throughout Hong Kong. (microbe.net)
  • Our research group at the School of Energy and Environment at the City University of Hong Kong has been focusing on the relationships between microbiomes of residential surfaces, air, and its occupants' skin. (microbe.net)
  • Our results show that some of the most abundant genera in air were indeed those commonly associated with the skin, consistent with our first statement above. (microbe.net)
  • Based on the results pertaining to statements ii) and iii), why did we still see abundant skin-associated genera in air samples? (microbe.net)
  • microBEnet: the microbiology of the Built Environment network. (ucdavis.edu)
  • Alex Alexiev is a recent UC Davis graduate with a BS in microbiology working in Jonathan Eisen’s lab on aquariums as part of the microbiology of the built environment. (ucdavis.edu)
  • David works at the intersection between research, education, and outreach in the areas of the microbiology of the built environment, microbial ecology, and bacterial genomics. (ucdavis.edu)
  • Effect of formaldehyde liberated from formalin on disinfection of the surface of a filtered air under positive pressure (FAPP) house and the surface of equipment placed in the house was studied. (biomedsearch.com)
  • The chance of successful detection was increased if air was sampled at several locations within a room and at a lower air humidity. (asm.org)