Physiological processes and properties of BACTERIA.
Physiological processes and properties of the DENTITION.
Properties and processes of the DIGESTIVE SYSTEM and DENTITION as a whole or of any of its parts.
Physiology of the human and animal body, male or female, in the processes and characteristics of REPRODUCTION and the URINARY TRACT.
Properties, and processes of the MUSCULOSKELETAL SYSTEM and the NERVOUS SYSTEM or their parts.
Functional processes and properties characteristic of the BLOOD; CARDIOVASCULAR SYSTEM; and RESPIRATORY SYSTEM.
The properties and relationships and biological processes that characterize the nature and function of the SKIN and its appendages.
Nutritional physiology related to EXERCISE or ATHLETIC PERFORMANCE.
Physiological processes, factors, properties and characteristics pertaining to REPRODUCTION.
The functions and properties of living organisms, including both the physical and chemical factors and processes, supporting life in single- or multi-cell organisms from their origin through the progression of life.
Nutritional physiology of adults aged 65 years of age and older.
Properties, functions, and processes of the URINARY TRACT as a whole or of any of its parts.
Processes and properties of the MUSCULOSKELETAL SYSTEM.
Biological properties, processes, and activities of VIRUSES.
Properties and processes of the DIGESTIVE SYSTEM as a whole or of any of its parts.
Physiological processes and properties of the BLOOD.
Nutritional physiology of children aged 13-18 years.
Processes and properties of the EYE as a whole or of any of its parts.
Characteristic properties and processes of the NERVOUS SYSTEM as a whole or with reference to the peripheral or the CENTRAL NERVOUS SYSTEM.
Cellular processes, properties, and characteristics.
Physiological processes and properties of the RESPIRATORY SYSTEM as a whole or of any of its parts.
The functions of the skin in the human and animal body. It includes the pigmentation of the skin.
Nutrition of FEMALE during PREGNANCY.
The physiological processes, properties, and states characteristic of plants.
Processes and properties of the CARDIOVASCULAR SYSTEM as a whole or of any of its parts.
Nutrition of a mother which affects the health of the FETUS and INFANT as well as herself.
Nutritional physiology of children aged 2-12 years.
The processes and properties of living organisms by which they take in and balance the use of nutritive materials for energy, heat production, or building material for the growth, maintenance, or repair of tissues and the nutritive properties of FOOD.
Nutritional physiology of children from birth to 2 years of age.
An idiopathic vascular disorder characterized by bilateral Raynaud phenomenon, the abrupt onset of digital paleness or CYANOSIS in response to cold exposure or stress.

Osmosensing by bacteria: signals and membrane-based sensors. (1/1292)

Bacteria can survive dramatic osmotic shifts. Osmoregulatory responses mitigate the passive adjustments in cell structure and the growth inhibition that may ensue. The levels of certain cytoplasmic solutes rise and fall in response to increases and decreases, respectively, in extracellular osmolality. Certain organic compounds are favored over ions as osmoregulatory solutes, although K+ fluxes are intrinsic to the osmoregulatory response for at least some organisms. Osmosensors must undergo transitions between "off" and "on" conformations in response to changes in extracellular water activity (direct osmosensing) or resulting changes in cell structure (indirect osmosensing). Those located in the cytoplasmic membranes and nucleoids of bacteria are positioned for indirect osmosensing. Cytoplasmic membrane-based osmosensors may detect changes in the periplasmic and/or cytoplasmic solvent by experiencing changes in preferential interactions with particular solvent constituents, cosolvent-induced hydration changes, and/or macromolecular crowding. Alternatively, the membrane may act as an antenna and osmosensors may detect changes in membrane structure. Cosolvents may modulate intrinsic biomembrane strain and/or topologically closed membrane systems may experience changes in mechanical strain in response to imposed osmotic shifts. The osmosensory mechanisms controlling membrane-based K+ transporters, transcriptional regulators, osmoprotectant transporters, and mechanosensitive channels intrinsic to the cytoplasmic membrane of Escherichia coli are under intensive investigation. The osmoprotectant transporter ProP and channel MscL act as osmosensors after purification and reconstitution in proteoliposomes. Evidence that sensor kinase KdpD receives multiple sensory inputs is consistent with the effects of K+ fluxes on nucleoid structure, cellular energetics, cytoplasmic ionic strength, and ion composition as well as on cytoplasmic osmolality. Thus, osmoregulatory responses accommodate and exploit the effects of individual cosolvents on cell structure and function as well as the collective contribution of cosolvents to intracellular osmolality.  (+info)

Bacterial resistance to antimicrobial agents: an overview from Korea. (2/1292)

Antimicrobial resistance of bacteria has become a worldwide problem. Available data suggest that the resistance problem is comparatively more serious in Korea. In large hospitals, the proportion of methicillin-resistant Staphylococcus aureus (MRSA) has been reported at over 70%, and of penicillin-nonsusceptible Streptococcus pneumoniae at around 70%. Infection or colonization of vancomycin-resistant enterococci has started to increase. Extended-spectrum beta-lactamase producing Escherichia coli and Klebsiella pneumoniae has become widespread and even carbapenem-resistant Pseudomonas aeruginosa has been increasing. Community-acquired pathogens such as Salmonella, Shigella and Neisseria gonorrhoeae are often resistant to various antimicrobial agents. The prevalence of resistant bacteria can lead to erroneous empirical selection of either noneffective or expensive drugs, prolonging hospitalization and higher mortality. The emergence and spread of resistant bacteria are unavoidable unless antimicrobial agents are not used at all. The high prevalence of resistant bacteria in Korea seems to be related to antibiotic usage: 1) easy availability without prescription at drug stores, 2) injudicious use in hospitals, and 3) uncontrolled use in agriculture, animal husbandry, and fisheries. Nosocomial infection is an important factor in the spread of resistant bacteria. Antimicrobial resistance problems should be regarded as the major public health concern in Korea. It is urgently required to ban the sale of antibiotics without prescription, to use antibiotics more judiciously in hospitals by intensive teaching of the principles of the use of antibiotics, and to establish better control measures of nosocomial infections. Regulation of antimicrobials for other than human use should also be required. These issues are not easy to address and require the collective action of governments, the pharmaceutical industry, health care providers, and consumers.  (+info)

Korean Nationwide Surveillance of Antimicrobial Resistance of bacteria in 1997. (3/1292)

Antimicrobial-resistant bacteria are known to be prevalent in tertiary-care hospitals in Korea. Twenty hospitals participated to this surveillance to determine the nationwide prevalence of resistance bacteria in 1997. Seven per cent and 26% of Escherichia coli and Klebsiella pneumoniae were resistant to 3rd-generation cephalosporin. Increased resistance rates, 19% of Acinetobacter baumannii to ampicillin/sulbactam, and 17% of Pseudomonas aeruginoa to imipenem, were noted. The resistance rate to fluoroquinolone rose to 24% in E. coli, 56% in A. baumannii and 42% in P. aeruginosa. Mean resistance rates were similar in all hospital groups: about 17% of P. aeruginosa to imipenem, 50% of Haemophilus influenzae to ampicillin, 70% of Staphylococcus aureus to methicillin, and 70% of pneumococci to penicillin. In conclusion, nosocomial pathogens and problem resistant organisms are prevalent in smaller hospitals too, indicating nosocomial spread is a significant cause of the increasing prevalence of resistant bacteria in Korea.  (+info)

Thiorhodospira sibirica gen. nov., sp. nov., a new alkaliphilic purple sulfur bacterium from a Siberian soda lake. (4/1292)

A new purple sulfur bacterium was isolated from microbial films on decaying plant mass in the near-shore area of the soda lake Malyi Kasytui (pH 9.5, 0.2% salinity) located in the steppe of the Chita region of south-east Siberia. Single cells were vibrioid- or spiral-shaped (3-4 microns wide and 7-20 microns long) and motile by means of a polar tuft of flagella. Internal photosynthetic membranes were of the lamellar type. Lamellae almost filled the whole cell, forming strands and coils. Photosynthetic pigments were bacteriochlorophyll a and carotenoids of the spirilloxanthin group. The new bacterium was strictly anaerobic. Under anoxic conditions, hydrogen sulfide and elemental sulfur were used as photosynthetic electron donors. During growth on sulfide, sulfur globules were formed as intermediate oxidation products. They were deposited outside the cytoplasm of the cells, in the peripheral periplasmic space and extracellularly. Thiosulfate was not used. Carbon dioxide, acetate, pyruvate, propionate, succinate, fumarate and malate were utilized as carbon sources. Optimum growth rates were obtained at pH 9.0 and optimum temperature was 30 degrees C. Good growth was observed in a mineral salts medium containing 5 g sodium bicarbonate l-1 without sodium chloride. The new bacterium tolerated up to 60 g sodium chloride l-1 and up to 80 g sodium carbonates l-1. Growth factors were not required. The DNA G + C composition was 56.0-57.4 mol%. Based on physiological, biochemical and genetic characteristics, the newly isolated bacterium is recognized as a new species of a new genus with the proposed name Thiorhodospira sibirica.  (+info)

Rhodovulum iodosum sp. nov. and Rhodovulum robiginosum sp. nov., two new marine phototrophic ferrous-iron-oxidizing purple bacteria. (5/1292)

Two new strains of marine purple bacteria, N1T and N2T, were isolated from coastal sediment of the North Sea (Germany) with ferrous iron as the only electron donor for anoxygenic photosynthesis. The isolates are the first salt-dependent, ferrous-iron-oxidizing purple bacteria characterized so far. Analysis of 16S rRNA gene sequences revealed an affiliation with the genus Rhodovulum, which until now comprises only marine species. The sequence similarity of both strains was 95.2%, and their closest relative was Rhodovulum adriaticum. Like all known Rhodovulum species, the new strains had ovoid to rod-shaped cells, contained bacteriochlorophyll a and carotenoids of the spheroidene series, and were able to oxidize sulfide and thiosulfate. Like Rhodovulum adriaticum, both strains were unable to assimilate sulfate; for growth they needed a reduced sulfur source, e.g. thiosulfate. In contrast to the new strains, none of the known Rhodovulum species tested was able to oxidize ferrous iron or iron sulfide. In growth experiments, strains N1T and N2T oxidized 65 and 95%, respectively, of the ferrous iron supplied. Electron diffraction analysis revealed ferrihydrite as the main product of ferrous iron oxidation. In addition, traces of magnetite were formed. Strains N1T (= DSM 12328T) and N2T (= DSM 12329T) are described as Rhodovulum iodosum sp. nov. and Rhodovulum robiginosum sp. nov., respectively.  (+info)

PAS domains: internal sensors of oxygen, redox potential, and light. (6/1292)

PAS domains are newly recognized signaling domains that are widely distributed in proteins from members of the Archaea and Bacteria and from fungi, plants, insects, and vertebrates. They function as input modules in proteins that sense oxygen, redox potential, light, and some other stimuli. Specificity in sensing arises, in part, from different cofactors that may be associated with the PAS fold. Transduction of redox signals may be a common mechanistic theme in many different PAS domains. PAS proteins are always located intracellularly but may monitor the external as well as the internal environment. One way in which prokaryotic PAS proteins sense the environment is by detecting changes in the electron transport system. This serves as an early warning system for any reduction in cellular energy levels. Human PAS proteins include hypoxia-inducible factors and voltage-sensitive ion channels; other PAS proteins are integral components of circadian clocks. Although PAS domains were only recently identified, the signaling functions with which they are associated have long been recognized as fundamental properties of living cells.  (+info)

Identification and characterization of a flagellin gene from the endosymbiont of the hydrothermal vent tubeworm Riftia pachyptila. (7/1292)

The bacterial endosymbionts of the hydrothermal vent tubeworm Riftia pachyptila play a key role in providing their host with fixed carbon. Results of prior research suggest that the symbionts are selected from an environmental bacterial population, although a free-living form has been neither cultured from nor identified in the hydrothermal vent environment. To begin to assess the free-living potential of the symbiont, we cloned and characterized a flagellin gene from a symbiont fosmid library. The symbiont fliC gene has a high degree of homology with other bacterial flagellin genes in the amino- and carboxy-terminal regions, while the central region was found to be nonconserved. A sequence that was homologous to that of a consensus sigma28 RNA polymerase recognition site lay upstream of the proposed translational start site. The symbiont protein was expressed in Escherichia coli, and flagella were observed by electron microscopy. A 30,000-Mr protein subunit was identified in whole-cell extracts by Western blot analysis. These results provide the first direct evidence of a motile free-living stage of a chemoautotrophic symbiont and support the hypothesis that the symbiont of R. pachyptila is acquired with each new host generation.  (+info)

Structural and functional analyses of photosynthetic regulatory genes regA and regB from Rhodovulum sulfidophilum, Roseobacter denitrificans, and Rhodobacter capsulatus. (8/1292)

Genes coding for putative RegA, RegB, and SenC homologues were identified and characterized in the purple nonsulfur photosynthetic bacteria Rhodovulum sulfidophilum and Roseobacter denitrificans, species that demonstrate weak or no oxygen repression of photosystem synthesis. This additional sequence information was then used to perform a comparative analysis with previously sequenced RegA, RegB, and SenC homologues obtained from Rhodobacter capsulatus and Rhodobacter sphaeroides. These are photosynthetic bacteria that exhibit a high level of oxygen repression of photosystem synthesis controlled by the RegA-RegB two-component regulatory system. The response regulator, RegA, exhibits a remarkable 78.7 to 84.2% overall sequence identity, with total conservation within a putative helix-turn-helix DNA-binding motif. The RegB sensor kinase homologues also exhibit a high level of sequence conservation (55.9 to 61.5%) although these additional species give significantly different responses to oxygen. A Rhodovulum sulfidophilum mutant lacking regA or regB was constructed. These mutants produced smaller amounts of photopigments under aerobic and anaerobic conditions, indicating that the RegA-RegB regulon controls photosynthetic gene expression in this bacterium as it does as in Rhodobacter species. Rhodobacter capsulatus regA- or regB-deficient mutants recovered the synthesis of a photosynthetic apparatus that still retained regulation by oxygen tension when complemented with reg genes from Rhodovulum sulfidophilum and Roseobacter denitrificans. These results suggest that differential expression of photosynthetic genes in response to aerobic and anaerobic growth conditions is not the result of altered redox sensing by the sensor kinase protein, RegB.  (+info)

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Dive into the research topics of Move over, bacteria! viruses make their mark as mutualistic microbial symbionts. Together they form a unique fingerprint. ...
It is generally assumed that microorganisms synthesize, release, detect and respond to small signaling hormone-like molecules. These molecules are used for a process termed
Do bacteria really cooperate? What is the syntax and semantics of bacterial communication? How does selection at the gene, mobile element, bacterium and group levels shape the structure and function of cooperative traits? If such questions interest you, come and work with us.. ​. We are looking for talented MSc, PhD and post-doc students for an ERC-funded interdisciplinary project. The project revolves around understanding microbial co-evolutionary processes across multiple levels of selection (selfish elements, bacterial-parasite interactions, cell-cell communication and community interactions) and across orders of organization ranging from protein structure to community behavior.. We are looking for students with a range of expertise in either experimental, computational or theoretical facets of biology (or all of them combined). Major areas of the project include: ...
Drugs that stop bacteria from talking might be new, powerful antibiotics - a much needed weapon in our never-ending struggle against bacterial infections. On the other hand, drugs that make bacteria chat more could boost the production of biofuels and other industrial goods that bacteria make for us. In 1990 a young Bonnie Bassler, mesmerized by glow-in-the-dark bacteria that could talk to their peers to coordinate light production, wondered whether other bacteria could talk too. The answer, she soon found out, was yes - including all the nasty bacteria that cause disease. Today, Bonnie Bassler is a professor in molecular biology at Princeton University and an authority in the field of bacterial communication. Her findings, that all bacteria can talk, revolutionized the way we think of bacteria and opened the doors to important medical and industrial applications. But the discovery of bacterial communication has given us much more than new drugs. It has shown us how bacteria live in the real
Quorum sensing is a cell density-dependent signaling phenomenon used by bacteria for coordination of population-wide phenotypes, such as expression of virulence genes, antibiotic resistance and biofilm formation. Lately, disruption of bacterial communication has emerged as an anti-virulence strategy with enormous therapeutic potential given the increasing incidences of drug resistance in pathogenic bacteria. The quorum quenching therapeutic approach promises a lower risk of resistance development, since interference with virulence generally does not affect the growth and fitness of the bacteria and, hence, does not exert an associated selection pressure for drug-resistant strains. With better understanding of bacterial communication networks and mechanisms, many quorum quenching methods have been developed against various clinically significant bacterial pathogens. In particular, Gram-negative bacteria are an important group of pathogens, because, collectively, they are responsible for the majority of
...LA JOLLA CALIFORNIA OCT. 30 2007 -- In hopes of combating the growi...The work was published in the October 29 issue of the journal Chemistr...Staph and other infections are becoming increasingly deadly because ma...The bacterial infection process is dependent on a sort of chemical con...,Scripps,research,team,blocks,bacterial,communication,system,to,prevent,deadly,staph,infections,biological,biology news articles,biology news today,latest biology news,current biology news,biology newsletters
Microtiter plate-based bacterial biofilm assay is frequently used to study bacterial biofilm development and growth. While this assay is simple and relatively high-throughput, it frequently shows difficulty in establishing robust biofilm attachment in the wells. We report that the consistency of bacterial biofilm a
Bacteria have ways of communicating with each other, and scientists have now identified a new signaling system that, when there is a critical mass of bacteria present, causes the bacteria to produce an appendage known as a flagellum that moves like a corkscrew and gives them the ability to swim away, inhibiting the formation of biofilm. Anything we can discover about this bacterial communication could be really important in understanding how bacteria become pathogenic in humans or how they form film on teeth or internal medical devices, said study co-author Dr. Russell Hill, Director of the Institute of Marine and Environmental Technology in Baltimore, Maryland. Understanding that process may help in the future for controlling biofilms.. It is estimated that pound by pound there are more bacteria on the Earth than all other life forms combined. They are simple organisms that consist of one cell and can only be seen through a microscope. However, bacteria have evolved ways to gather into ...
In 1975 our laboratory reported that a methylated membrane protein is involved in bacterial chemotaxis (Kort et al., 1975). It is now known that the extent of methylation of this protein (called MCP...
Viruses are being redefined as more than just pathogens. They are also critical symbiotic partners in the health of their hosts. In some cases, viruses have fused with their hosts in symbiogenetic relationships. Mutualistic interactions are found in plant, insect, and mammalian viruses, as well as with eukaryotic and prokaryotic microbes, and some interactions involve…
In a recent study a new role of cAMP was described (A synthetic Escherichia coli communication system mediated by extracellular cyclic AMP (publication in progress). This system is involved in bacterial communication. We used this module to allow communications within our bacteria ...
In a recent study a new role of cAMP was described (A synthetic Escherichia coli communication system mediated by extracellular cyclic AMP (publication in progress). This system is involved in bacterial communication. We used this module to allow communications within our bacteria ...
Bacterial Biofilms von Tony Romeo und Buchbewertungen gibt es auf ReadRate.com. Bücher können hier direkt online erworben werden.
This year-long proof of concept explores the interplay between bacterial communication circuits and the surface topology of the substrate they are on, to see if certain designed surface features can be made to trigger genetic development switches. Differentiation due to a diffusible chemical signal is central in the development of multicellular organisms. Success in replicating this strategy on a synthetic structure enables a spatially programmable consortium of bacterial cells. Our aims were to enable the self-assembly of multicellular microbial films on the surface of synthetic silicon and polymer forms to form hybrid constructs, generation of construct polarity in gene expression driven by the topology of the synthetic form, and size control of the assembled multicellular film. These achievements would enable our long term vision, which is to create a micro scale, programmable cellular-synthetic hybrid robot capable of autonomous motility, sensing and response in aqueous environments. These ...
keywords = {Bacterial Physiological Phenomena, Cell Surface, Flagella, Flagellin, Humans, Membrane Glycoproteins, Receptors, Toll-Like Receptor 5, Toll-Like Receptors ...
Stoodley P, Wilson S, Cargo R, Piscitteli C, Rupp CJ, Detachment and other dynamic processes in bacterial biofilms, in Surfaces in Biomaterials 2001 Symposium Proceedings, pp. 189-192, Surfaces in Biomaterials Foundation, Minneapolis ...
Hyphomonas neptunium ATCC ® 15444D-5™ Designation: Genomic DNA from Hyphomonas neptunium strain 14-15 TypeStrain=True Application:
Tumbling and swimming motility of a flagellated rod are illustrated using 3D animation, one of many videos available for the classroom or broadcast.
Rajagopala, S.V.; Titz, B.; Goll, J.; Parrish, J.R.; Wohlbold, K.; McKevitt, M.T.; Palzkill, T.; Mori, H.; Finley, R.L.; Uetz, P ...
Many species of bacteria actively propel themselves in a low Reynolds number environment via the rotation of one or more flagella. At the base of each flagella, you find Natures version of the rotary motor, called the Bacterial Flagellar Motor (BFM). At a diameter of 50 nm and composed of about a dozen different proteins, the BFM is able to rotate at hundreds of hertz, change direction within milliseconds, and attain very high thermodynamic efficiencies. Moreover, the motor can sense the environmental conditions and dynamically adapt its power output accordingly. This talk will introduce some of the basic physical mechanisms underlying the operation of this remarkable molecular machine which drives bacterial motility, with a particular focus on the motors ability to sense its mechanical environment.. ...
De Mot, R., and Vanderleyden, J. (1994) The C-terminal sequence conservation between OmpA-related outer membrane proteins and MotB suggests a common function in both gram-positive and gram-negative bacteria, possibly in the interaction of these domains with peptidoglycan. Mol Microbiol 12: 333-334 ...
Breast cancer is a threat to men and women worldwide. Like all cancers, the known causes are attributed to genetics and carcinogens, but recently, scientists have begun to recognize the microbiome as another contributing factor. Historically, breast tissue had been thought to be sterile, but it has become increasingly evident that microbes may both move to and reside in the breast tissue and nipple ducts.. Building on the recent discovery of Escherichia and Bacillus bacteria in the breast tissue, researchers published a study in PLOS ONE illustrating the role bacterial communication may play in breast tumor progression.. Bacteria have a system of communicating with each other called quorum sensing, where they may release hormones, lactones, or peptides that act as chemical signals to elicit a specific response in other bacteria. Quorum sensing peptides and bacteria themselves can travel in the blood stream, and this may allow for both the peptides and bacteria from other areas of the body to ...
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Bacterial cell-to-cell signalling has emerged as a new area in microbiology. Individual bacterial cells communicate with each other and co-ordinate group activities. Although a lot of detail is known about the mechanisms of a few well-characterized bacterial communication systems, other systems have …
Analysis of Pseudomonas aeruginosa cells treated for up to 20 hours with 3,4-(di)hydroxy-heptyl-quinoline (PQS), a bacterial intercellular signaling molecule. Results provide insight into the role of PQS in the bacterial communication system termed quorum sensing. ...
In his first five years, the chemical biologist has led important research on bacterial communication and raised the bar for grant funding
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A team of researchers with members from the U.S., Germany and Sweden has discovered that the cellulose found in bacterial biofilms differs from the cellulose in plants. In their paper published in the journal Science, the ...
Exospores 3D Model available on Turbo Squid, the worlds leading provider of digital 3D models for visualization, films, television, and games.
The discovery reveals the role of a growth factor and endothelial cells in thymus repair, and could have implications for chemotherapy and radiation patients recovery following treatment.. 0 Comments. ...
A community-based life style is the normal mode of growth and survival for many bacterial species. These cellular accretions or biofilms are initiated upon reco
Gliding Cyanobacterial filaments A thin slime sheath, external to the oscillin layer, encloses the cell or filament. Cyanobacteria may be immotile, or they move
In this video the concept of irreducible complexity is discussed as a obstacle to the theory of natural selection. In irreducible complexity, a system requires the existence of its unique parts in order to function. A non-biological example of this is the common mousetrap. Each component of the mousetrap is required in order for it to operate appropriately. The biological example of irreducible complexity is the bacterial flagellum. Natural selection, cannot explain the existence of the bacterial flagellum where the concept of irreducible complexity challenges its theory ...
This weeks post at Design Disquisitions is the first in a series of articles entitled Critics Corner where I focus on a critic of ID. The main purpose of these posts is to document their work relevant to ID and also to document the direct responses to the particular critic in question, by those sympathetic to […]. ...
Harmful bacteria are often associated with the toxins they use on their hosts. It is generally believed that the greater the toxicity the more severe is the
CamStent Ltd is an emerging medical materials company based in Cambridge, UK. We are focused on building revenues through the...
Bacterial chemotaxis, a remarkable behavioral trait which allows bacteria to sense and respond to chemical gradients in the environment, has implications in a broad range of fields including but not limited to disease pathogenesis, in-situ bioremediation and marine biogeochemistry. And therefore, studying bacterial chemotaxis is of significant importance to scientists and engineers alike. Microfluidics has revolutionized the way we study the motile behavior of cells by enabling observations at high spatial and temporal resolution in carefully controlled microenvironments. This thesis aims to explore the potential of microfluidic technology in studying bacterial behavior by investigating different aspects of bacterial chemotaxis on a microfluidic platform. We quantified population-scale transport parameters of bacteria using videomicroscopy and cell tracking in controlled chemoattractant gradients. Previously, transport parameters have been derived theoretically from single-cell swimming behavior ...
immune Uncategorized Bosutinib, LDHAL6A antibody Bacterial biofilm has been shown to play a role in delaying wound healing of chronic wounds, a major medical problem that results in significant healthcare burden. gradually cleared from your wounds while the presence of (part of the normal mouse pores and skin flora) improved. Scabs from all unhealed wounds contained 107 study of bacterial biofilm reactions to sponsor defenses and the effects of biofilms on sponsor wound healing pathways. It may also be used to test anti-biofilm strategies the treatment of chronic wounds. spp., and [5C7] have been isolated from chronic wounds, even though the wound may not display any medical indications of localized illness. Multiple bacterial varieties, usually two to five varieties, reside concurrently on a single ulcer [7C9]. The chronicity of unhealed wounds is definitely associated with higher proportion of colonization by anaerobic bacteria and greater variety of aerobic varieties [5]. More recent studies ...
RICHARDSON, Texas (March 29, 2006) - A research associate and a professor at The University of Texas at Dallas (UTD) have been awarded a three-year, $240,000 grant to study how bacterial communication affects the formation of biofilms, the culprit in many human bacterial infections. The National Institutes of Health (NIH) has awarded the grant to Dr. Audry Almengor, research associate, and Dr. Juan E. González, associate professor, in the Department of Molecular and Cell Biology. The grant supports Almengors postdoctoral work at UTD.. This is a very important area of study, since most of the bacteria that interact with animals or plants attach to surfaces, where they form biofilms, González said. Biofilms are a collection of microorganisms that attach themselves to either an inert or living surface, and they exist wherever surfaces contact water. In addition to being implicated in a significant number of human bacterial infections, biofilms can also cause product contamination and even ...
Some bacteria boast a marvelous swimming device, the flagellum, which has no counterpart in more complex cells. In 1973 it was discovered that some bacteria swim by rotating their flagella. So the bacterial flagellum acts as a rotary propellor -- in contrast to the cilium, which acts more like an oar.. The structure of a flagellum is quite different from that of a cilium. The flagellum is a long, hairlike filament embedded in the cell membrane. The external filament consists of a single type of protein, called flagellin. The flagellin filament is the paddle surface that contacts the the liquid during swimming. At the end of the flagellin filament near the surface of the cell, there is a bulge in the thickness of the flagellum. It is here that the filament attaches to the rotor drive. The attachment material is comprised of something called hook protein. The filament of a bacterial flagellum, unlike a cilium, contains no motor protein; if it is broken off, the filament just floats stiffly in ...
Host-pathogen interactions are like an arms race, in which the outcome of the encounter is determined by the dynamic interplay between the bodys (the host) responses, which aim to eliminate the pathogen, and the countermeasures that pathogens employ to avoid eradication. Thus, to understand host-pathogen interactions, both sides of this war should be studied simultaneously. In the laboratory we study both the bacterial and the host adaptation strategies engaged during the course of infection, focusing on: 1) How the host spies on bacterial communication systems and what are the sensors and mechanisms involved, with a major focus is on an important host receptor recently discovered to be able to sense bacterial infection, the Aryl hydrocarbon Receptor (AhR). 2) How the bacteria reacts and adapts to host derived responses. ...
Building natures extraordinary machines - new insights, new technologies Lawrence Lee and his team are building natures extraordinary molecular machines such as the bacterial flagellar motor − a rotary engine that can rotate five times faster than an F1 engine. They hope to uncover one of Natures best-kept secrets − how so many brainless molecules self-assemble into sophisticated nanoscopic machines. These machines often surpass man-made technologies with their function, efficiency, scale and robustness.
The flow cell biofilm system is an important and widely used tool for the in vitro cultivation and evaluation of bacterial biofilms under hydrodynamic conditions of flow. This paper provides an introduction to the background and use of such systems, accompanied by a detailed guide to the assembly of the apparatus including the description of new modifications which enhance its performance. As such, this is an essential guide for the novice biofilm researcher as well as providing valuable trouble-shooting techniques for even the most experienced laboratories. The adoption of a common and reliable methodology amongst researchers would enable findings to be shared and replicated amongst the biofilm research community, with the overall aim of advancing understanding and management of these complex and widespread bacterial communities.. ...
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Daily News How Gaining and Losing Weight Affects the Body Millions of measurements from 23 people who consumed extra calories every day for a month reveal changes in proteins, metabolites, and gut microbiota that accompany shifts in body mass.. ...
Environtech is not simply an installation that incorporates technological elements to others more of a natural or animal character or, at least, in summary, related to fauna and flora. The proposal could rather be defined as an attempt to question the limits that separate the spheres of culture and nature, through the production of an environment that expands the notions of technique and technology to other forms of non-human life.Starting from a frame of metal profiles that formally comes from the drawing of architectures dedicated to data traffic, such as, for instance, the servers from which information is distributed, Environtech is laid out as a biotope or a naturcultural environment - according to the terminology used by Donna Haraway - to account for the interspecies communications that occur beyond our language. The installation, in that sense, depicts the possible coexistence between certain organisms, bringing together that which is animal, vegetal, human and their artificial ...
Turnover of Endogenous SsrA-tagged Proteins Mediated by ATP-dependent Proteases in Escherichia coli*[S with combining enclosing square]: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2516991 ...
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Roberts, M.A.J. and August, E. and Hamadeh, A. and Maini, P. K. and McSharry, P. E. and Armitage, J. P. and Papachristodoulou, A. (2009) A model invalidation-based approach for elucidating biological signalling pathways, applied to the chemotaxis pathway inR. sphaeroides. BMC Systems Biology, 3 (3). pp. 1-14. ...
Motility is achieved in most bacterial species by the flagellar apparatus. It consists of dozens of different proteins with thousands of individual subunits. The published literature about bacterial chemotaxis and flagella ...
This phenomenon was termed "autoinduction" because it involved a molecule (autoinducer) that accumulated in a growth medium and ... As the density of quorum sensing bacterial cells increases so does the concentration of the autoinducer. Detection of signal ... Sporulation, on the other hand, is a physiological response of B. subtilis to depletion of nutrients within a particular ... Quorum sensing is a phenomenon that allows both Gram-negative and Gram-positive bacteria to sense one another and to regulate a ...
Physiological inability to close the eyelids during sleep (nocturnal lagophthalmos) may also cause exposure keratopathy. ... A weak bell phenomenon may result in exposure keratopathy after ptosis surgery. Postoperative lagophthalmos following ... Corneal ulceration may develop due to bacterial invasion. Main complication of exposure keratopathy is permanent vision loss ...
Bacterial resistance to phages puts pressure on the phages to develop stronger effects on the bacteria. The Red Queen ... In the mid 1910s, when phage were first discovered, the concept of phage was very much a whole-culture phenomenon (like much of ... and physiological ecology under the heading of phage "organismal" ecology. However, as noted, these subdisciplines are not as ... ISBN 978-0-12-680126-2. Summers WC (1991). "From culture as organism to organism as cell: historical origins of bacterial ...
Jayaraman, R (December 2008). "Bacterial persistence: some new insights into an old phenomenon". Journal of Biosciences. 33 (5 ... Antibiotic tolerance can be caused by a reversible physiological state in a small subpopulation of genetically identical cells ... The formation of bacterial persisters is now known to be a common phenomenon that can occur by the formation of persister cells ... Recognition of bacterial persister cells dates back to 1944 when Joseph Bigger, an Irish physician working in England, was ...
Chemical Genomics Centre (CGC) Official site Federation European Physiological Societies Official site European Federation for ... researchers identify and develop new tools for the investigation of biologically relevant processes and phenomena. Rabinbach, ... attention is given to the investigation into the molecular mechanisms of muscle contraction and the infection with bacterial ...
Bacterial circadian rhythms Biological clock (aging) Circadian rhythm Circannual cycle Circaseptan, 7-day biological cycle ... Chronobiology is a field of biology that examines timing processes, including periodic (cyclic) phenomena in living organisms, ... a roughly 24-hour cycle shown by physiological processes in all these organisms. The term circadian comes from the Latin circa ... They have even been found in bacteria, especially among the cyanobacteria (aka blue-green algae, see bacterial circadian ...
Lenski chose an E. coli strain that reproduces only asexually, lacks any plasmids that could permit bacterial conjugation, and ... nor did the physiological characteristics in transport assays of Hall's Cit+ mutants match those to be expected for aerobic ... evolution has presented new phenomena to study, and as technology and methodological techniques have advanced. The use of E. ... and physiological levels. The bacteria can also be frozen and preserved while remaining viable. This has permitted the creation ...
Eur J Neurosci 8: 2428-2439 Klink R., de Kerchove d'Exaerde A., Zoli M., Changeux J.-P. (2001). Molecular and Physiological ... During the 1970s, he tried to document this phenomenon, either by studying mutant animals or by experimental denervation. While ... of a bacterial homolog in the open and resting conformations supporting the concept of a symmetrical concerted opening for ... Dehaene S., Sergent C., Changeux J.-P. (2003) A neuronal network model linking subjective reports and objective physiological ...
Some complexities of bacterial regulation and metabolism suggest that other, more subtle, purposes for the enzyme may also play ... In such a case, the phenomenon is referred to as intragenic complementation. E. coli alkaline phosphatase, a dimer enzyme, ... Higher than typical levels are seen in the physiological response, the leukemoid reaction, and in pathologies that include ... While the main features of the catalytic mechanism and activity are conserved between mammalian and bacterial alkaline ...
Phenology is the study of natural phenomena that recur periodically, and how these phenomena relate to climate and seasonal ... Physiological damage to tubers (e.g. brown spots). Shortened/non-existent tuber dormancy, making tubers sprout too early. These ... Bacterial infections such as Ralstonia solanacearum are predicted to benefit from higher temperatures and be able to spread ... physiological and yield attributes". Vitis-Journal of Grapevine Research. 48 (4): 159-165. Fraga H, García de Cortázar Atauri I ...
ESA Molecular and physiological analysis of bacterial samples isolated from manned spacecraft (SAMPLE) - ESA SAMPLE - ESA Study ... Observation of environmental phenomena (IMEDIAS) A demonstration of physical phenomena in space. (VIDEO) Amateur Radio on ISS ( ... Molecular and physiological analysis of bacterial samples isolated from manned spacecraft (SAMPLE) SAMPLE Study of the ... ESA Physiological parameters that predict orthostatic intolerance after spaceflight (AORTA) - ESA Physiological parameters that ...
The phenomenon of immune tolerance was first described by Ray D. Owen in 1945, who noted that dizygotic twin cattle sharing a ... Oral tolerance may depend on the same mechanisms of peripheral tolerance that limit inflammation to bacterial antigens in the ... Reactions are mounted, however, to pathogenic microbes and microbes that breach physiological barriers(epithelium barriers). ... It is used to describe the phenomenon underlying discrimination of self from non-self, suppressing allergic responses, allowing ...
This parallels the phenomenon of osteophagy in birds, in which snail shells are ingested by egg-laying females to supplement ... Over the next several years, he was able to show that a bacterial strain living in the decomposing carcasses, Clostridium ... Therefore, it would be expected that the increased physiological needs of juvenile and gravid female tortoises would also ... This lack of protein during winter conditions can be attributed to the scarcity of animal proteins, a phenomenon that occurs in ...
... cell phenomena, and immunity G05 - genetic processes G06 - biochemical phenomena, metabolism, and nutrition G07 - physiological ... bacterial infections and mycoses C02 - virus diseases C03 - parasitic diseases C04 - neoplasms C05 - musculoskeletal diseases ... chemical and pharmacologic phenomena G13 - genetic phenomena G14 - genetic structures H - Physical Sciences H01 - natural ... psychological phenomena and processes F03 - mental disorders F04 - behavioral disciplines and activities G - Biological ...
This makes them an excellent model organism to study developmental and evolutionary phenomena. Young chameleons have a ... Similar subcutaneous swellings can be associated with bacterial or fungal abscesses, parasitic infestation, and (rarely) ... chameleons useful in providing information to study the molecular interaction at the tooth-bone interface in physiological and ...
Under physiological conditions, it is easier for G-actin to associate at the positive end of the filament, and harder at the ... FtsZ treadmilling The bacterial tubulin homolog FtsZ is one of the best documented treadmilling polymers. FtsZ assembles into ... Caplow, M; Langford, GM; Zeeberg, B (July 1982). "Efficiency of the Treadmilling Phenomenon with Microtubules". J Biol Chem. ... Single filaments and/or patches have been demonstrated to treadmill in vitro and inside bacterial cells. A Monte Carlo model of ...
Another observed metabolic phenomenon is the cooperation between Geobacter species, in which several species cooperate in ... Detailed functional genomic/physiological studies on one species, G. sulfurreducens was conducted. Genome-based models of ... Geobacter species are anaerobic respiration bacterial species which have capabilities that make them useful in bioremediation. ... Shewanella List of bacterial orders List of bacteria genera "Genus: Geobacter". lpsn.dsmz.de. Childers, Susan (2002). " ...
They may be products of natural phenomena, such as storms, wildfires, and volcanic eruptions, as well as of man-made phenomena ... ecophysiology The study of the interaction of the physiological traits of an organism with its abiotic environment. ecopoiesis ... and bacterial populations in desert communities. desertification The process by which ecosystems become arid, barren, or desert ... autopoiesis The phenomenon by which a system is capable of producing and maintaining itself by creating its own parts. The term ...
... a common and benign phenomenon. Physiological afterimages appear when viewing a bright stimulus and shifting visual focus. For ... Arnold, RW; Janis, B; Wellman, S; Crouch, E; Rosen, C (Jan-Mar 1999). "Palinopsia with bacterial brain abscess and Noonan ... Physiological afterimages are usually the complementary color of the original stimulus (negative afterimage), while palinoptic ... entoptic phenomena, and cerebral polyopia.[citation needed] Posterior visual pathway cortical lesions (tumor, abscess, ...
The transfer of bacterial DNA is under the control of the bacteriophage's genes rather than bacterial genes. Conjugation in the ... For a bacterium to bind, take up and recombine donor DNA into its own chromosome, it must first enter a special physiological ... a phenomenon known as quorum sensing. Biofilms may be highly heterogeneous and structurally complex and may attach to solid ... Other aspects of bacterial cooperation-such as bacterial conjugation and quorum-sensing-mediated pathogenicity, present ...
The mantle of B. thermophilus serves two physiological roles, one being the accumulation of somatic reserves, and the other ... A potential reason for this phenomenon is due to enhanced predation or avoidance of superior competitors. Bathymodiolus ... Adult stages of the bathymodioline species have received the most attention, especially when studying the bacterial symbionts ...
anticipation A phenomenon by which the symptoms of a genetic disorder become apparent (and often more severe) at an earlier age ... bacterial artificial chromosome (BAC) base An abbreviation of nitrogenous base and nucleobase. base pair (bp) A pair of two ... thought to represent an average of the various distinct conformations assumed by very long DNA molecules under physiological ... associative overdominance The phenomenon by which the linkage of a neutral locus to a selectively maintained polymorphism ...
Physiological changes in nursing women, including an unusual milk supply and blocked milk ducts, cause nipple or breast ache. ... Bacterial infection by Staphylococcus aureus (S.aureus) will give rise to mastitis which refers to an inflammation of the ... Nursing mothers with psoriasis may develop Koebner phenomenon upon further nipple abrasion by infants in prolonged ... Bacterial invasion can be successfully blocked by external protectors of the nipple such as nipple shield, polyethylene film ...
This paradoxical phenomenon has not been satisfactorily explained despite the widespread interest. One initially dismissed ... Thomas WE, Trintchina E, Forero M, Vogel V, Sokurenko EV (June 2002). "Bacterial adhesion to target cells enhanced by shear ... This topic was finally able to be studied thoroughly under physiological shear stress conditions using a typical flow chamber. ... Thomas WE, Trintchina E, Forero M, Vogel V, Sokurenko EV (June 2002). "Bacterial adhesion to target cells enhanced by shear ...
Postpartum physiological changes Postpartum care Postpartum confinement, a period of rest Romano, Mattea; Cacciatore, ... Postpartum thyroiditis is a phenomenon observed following pregnancy and may involve hyperthyroidism, hypothyroidism or the two ... are any bacterial infections of the female reproductive tract following childbirth or miscarriage. Signs and symptoms usually ...
anticipation A phenomenon by which the symptoms of a genetic disorder become apparent (and often more severe) at an earlier age ... bacterial artificial chromosome (BAC) base An abbreviation of nitrogenous base and nucleobase. base pair (bp) A pair of two ... phenotype The composite of the observable morphological, physiological, and behavioral traits of an organism that result from ... pleiotropy The phenomenon by which one gene influences two or more seemingly unrelated phenotypic traits, by any of several ...
This phenomenon is typically described as amyloid polymorphism. It has notable biological consequences given that it is thought ... Bacterial Inclusion Bodies Contain Amyloid-Like Structure at SciVee Amyloid Cascade Hypothesis Amyloid: Journal of Protein ... Many examples of non-pathological amyloid with a well-defined physiological role have been identified in various organisms, ... This phenomenon is important, since it would explain interspecies prion propagation and differential rates of prion propagation ...
Other bacterial cell surface structures range from disorganised slime layers to highly structured capsules. These are made from ... medical and biological phenomena. Due to the small size of the microswimmer, the inertial effect of the surrounding flow field ... proteins and protein complexes present in cells that carry out a variety of physiological functions by transducing chemical ... Xie, L.; Altindal, T.; Chattopadhyay, S.; Wu, X.-L. (2011). "Bacterial flagellum as a propeller and as a rudder for efficient ...
The phenomenon has long been known in animals and plants. Heterosis appears to be largely due to genetic complementation, that ... In this case the test depends on mixed infections of host bacterial cells with two different bacteriophage mutant types. Its ... "Physiological studies of conditional lethal mutants of bacteriophage T4D". Cold Spring Harb. Symp. Quant. Biol. 28: 375-394. ...
Unlike motility in bacterial chemotaxis, the mechanism by which eukaryotic cells physically move is unclear. There appear to be ... Köhidai L (1999). "Chemotaxis: the proper physiological response to evaluate phylogeny of signal molecules". Acta Biologica ... it is possible to describe the basic phenomenon of chemotaxis-driven motion in a straightforward way. Indeed, let us denote ... "Bacterial Chemotaxis" (PDF). Archived (PDF) from the original on 6 May 2017. Berg HC, Brown DA (October 1972). "Chemotaxis in ...
This color-change phenomenon is highly prized by collectors.[citation needed] In combination with gold or selenium, red colors ... on Some Physiological Activities in Oilseed Rape during Calcium (Ca2+) Starvation". 10th International Rapeseed Congress. 2: ... Examination of electron stains as a substitute for uranyl acetate for the ultrathin sections of bacterial cells. J Electron ...
Bacterial metabolic networks are a striking example of bow-tie organization, an architecture able to input a wide range of ... Fell DA, Thomas S (October 1995). "Physiological control of metabolic flux: the requirement for multisite modulation". The ... Cellular phenomena Oncometabolism Reactome - Database of biological pathways KEGG - Collection of bioinformatics databases ... Michie KA, Löwe J (2006). "Dynamic filaments of the bacterial cytoskeleton". Annual Review of Biochemistry. 75: 467-92. doi: ...
Current scientific consensus agrees that HNLC areas lack high productivity because of a combination of iron and physiological ... Hydrographic studies and explorations of the Southern Drake Passage region have observed this phenomenon around the Crozet ... A first estimate using a heterotrophic bacterial bioreporter". Global Biogeochemical Cycles. 19 (4): GB4S25. Bibcode:2005GBioC ...
Other examples of physiological enzyme inhibitor proteins include the barstar inhibitor of the bacterial ribonuclease barnase. ... Enzyme inactivation is generally explained as a chemical process involving several phenomena like aggregation, dissociation ... Physiological enzyme inhibition can also be produced by specific protein inhibitors. This mechanism occurs in the pancreas, ... Buynak JD (September 2007). "Cutting and stitching: the cross-linking of peptidoglycan in the assembly of the bacterial cell ...
2016-08-10). "Physiological and Metagenomic Analyses of Microbial Mats Involved in Self-Purification of Mine Waters ... Sayama M, Risgaard-Petersen N, Nielsen LP, Fossing H, Christensen PB (November 2005). "Impact of bacterial NO3(-) transport on ... causing the phenomenon called "bulking". Beggiatoa are also able to detoxify hydrogen sulfide in soil and have a role in the ... in same cases the Beggiatoa bacterial filaments can be the most abundant part of the microbial biomass in the sediments. ...
Kerr JF, Wyllie AH, Currie AR (Aug 1972). "Apoptosis: a basic biological phenomenon with wide-ranging implications in tissue ... Apoptosis occurs in many physiological and pathological processes. It plays an important role during embryonal development as ... "Modification of two distinct COOH-terminal domains is required for murine p53 activation by bacterial Hsp70". The Journal of ...
It lacks phenomena of intracellular compartmentalization or sequestration as is often seen for Voltage-sensitive dyes, and does ... "Prediction of EF-hand calcium-binding proteins and analysis of bacterial EF-hand proteins". Proteins. 65 (3): 643-655. doi: ... the first experiments involving the injection of the protein into the tissues of living animals to visualize the physiological ...
Thomson JA, Schurtenberger P, Thurston GM, Benedek GB (October 1987). "Binary liquid phase separation and critical phenomena in ... Muthunayake NS, Tomares DT, Childers WS, Schrader JM (November 2020). "Phase-separated bacterial ribonucleoprotein bodies ... of the first discovered examples of a highly dynamic intracellular liquid biomolecular condensate with a clear physiological ... "Hence the study of life may be best begun by the study of those physico-chemical phenomena which result from the contact of two ...
The symptoms of this disease are also commonly confused with Cercospora Leaf Blight of carrots as well as bacterial blight, and ... Physiological Plant Pathology. 19 (1): 7-IN9. doi:10.1016/s0048-4059(81)80003-3. Index Fungorum USDA ARS Fungal Database (CS1 ... a phenomenon that is sometimes mistaken for frost damage. ...
Although he was not the first to notice this phenomenon, as the holder of 120 patents, Spencer was no stranger to discovery and ... 1941 Deodorant Deodorants are substances applied to the body to reduce body odor caused by the bacterial breakdown of ... is an instrument that measures and records several physiological indices such as blood pressure, pulse, respiration, and skin ... makes it unavailable for most bacterial growth and slows down most chemical reactions. Clarence Birdseye offered his quick- ...
The standards are the first to apply specifically to bacterial biofilms. The standards are an outgrowth of research by CBE ... Costerton encouraged exploration of the bioelectric effect, the phenomenon of cell-cell signaling and its relation to biofilm ... Stewart, Philip S.; Franklin, Michael J. (March 2008). "Physiological heterogeneity in biofilms". Nature Reviews Microbiology. ... Klapper I, Rupp CJ, Cargo R, Purevdorj B, and Stoodley P (November 5, 2002). "A viscoelastic fluid description of bacterial ...
The CMR phenomenon indicates that how long a bond can sustain force at a given level can depend on the history of force ... This is possible due to the bacterial protein FimH, which mediates high adhesion in response to high flow. The lectin domain is ... which bear force or generate force in their physiological function. An interesting recent development is the discoveries of ... This "shear-threshold phenomenon" was initially characterized in 1996 by Finger et al. who showed that leukocyte binding and ...
Han, Jiwon (June 2016). "A Study on the Coffee Spilling Phenomena in the Low Impulse Regime". Achievements in the Life Sciences ... Prochazkova, E.; Sjak-Shie, E.; Behrens, F.; Lindh, D.; Kret, M. E. (1 November 2021). "Physiological synchrony is associated ... doi:10.1016/S1389-1723(01)80326-1. "Microbial Treatment of Food-Production Waste with Thermopile Enzyme-Producing Bacterial ... It has been suggested that the study of this phenomenon has had major political consequences. Following the sensational ...
Other physiological changes that occur according to a circadian rhythm include heart rate and many cellular processes " ... This appears to be consistent with the proposed phenomenon known as metabolic dawn. According to the metabolic dawn hypothesis ... Actigraphy (also known as actimetry) ARNTL ARNTL2 Bacterial circadian rhythms Circadian rhythm sleep disorders, such as ... In addition, photoperiodism, the physiological reaction of organisms to the length of day or night, is vital to both plants and ...
One common example of such a modification in nature is the lipopolysaccharide coat on a bacterial outer membrane, which helps ... It is believed that this phenomenon results from the energetically active edges formed during electroporation, which can act as ... physiological liquid crystal phase, ripple phases, non bilayer phases), lipid head group orientation/dynamics, and elastic ... Because of this, electroporation is one of the key methods of transfection as well as bacterial transformation. It has even ...
This phenomenon was first described in 1930 by Otto Warburg and is referred to as the Warburg effect. The Warburg hypothesis ... 2011) Bacterial Physiology and Metabolism, 3rd edition. Mehta S (20 September 2011). "Glycolysis - Animation and Notes". ... under physiological conditions, whereas a 10% drop in ATP results in a 6-fold increase in AMP. Thus, the relevance of ATP as an ... This phenomenon can be explained through Le Chatelier's Principle. Isomerization to a keto sugar is necessary for carbanion ...
doi:10.1016/S0304-3770(99)00035-2. Collier, CJ; Lavery, PS; Ralph, PJ; Masini, RJ (2008). "Physiological characteristics of the ... along with natural phenomena like climate change and anthropogenic pressure. While there are exceptions, regression was a ... different seagrass grazers and bacterial colonization) stressors. The cell walls of seagrasses seem intricate combinations of ... From physiological to community-level assessments". Journal of Experimental Marine Biology and Ecology. 317: 87-95. doi:10.1016 ...
These ligands not only consist of endogenous proteins but also bacterial and viral products. Once the virus is anchored to the ... McMahon, Harvey T.; Boucrot, Emmanuel (August 2011). "Molecular mechanism and physiological functions of clathrin-mediated ... approach for animal models for many BSL4 pathogens when the biological phenomenon cannot be studied in other species. As many ...
The abnormal physiological conditions found within the tumor environment provide a breadth of options that could be used for ... The phenomenon of magnetic hyperthermia is when superparamagnetic nanoparticles reorient themselves after being exposed to heat ... These systems could be used to limit bacterial resistance as well as accumulation of antibiotics within the body. Antibacterial ...
Max Kleiber developed a formula that estimates this phenomenon (the exact values are not always consistent). M R = 70 ∗ W 0.75 ... general morphological and physiological adaptations. The Jarman-Bell principle was used to help organise these variables. It ... "Comparative analyses of foregut and hindgut bacterial communities in hoatzins and cows". The ISME Journal. 6 (3): 531-541. doi: ... it is subjected to numerous other phenomena that occur at the same time. For example, the habitat range constrains the size of ...
But, on the other hand, the complementarity in the specific bacterial proteins could make the host more susceptible to chronic ... Inspired by this discovery, de Duve christened the phenomena "autophagy". Unlike Porter and Ashford, de Duve conceived the term ... Medzhitov R (July 2008). "Origin and physiological roles of inflammation". Nature. 454 (7203): 428-35. Bibcode:2008Natur.454.. ... While SQSTM1/p62 targets more generic bacterial proteins containing a target motif but not related to virulence. On the other ...
There is evidence that some bacterial lifeforms are able to overcome perchlorates by physiological adaptations to increasing ... "Measuring Electrostatic Phenomena on Mars and the Moon" (PDF). Proceedings of The Institute of Electrostatics Japan Annual ... "Bacterial Growth in Chloride and Perchlorate Brines: Halotolerances and Salt Stress Responses of Planococcus halocryophilus". ...
This resulted in damage to both bacterial cells and human tissue. Other sanitizing techniques, such as irrigation with ... Hill, L.; Flack, M. (28 December 1911). "The Physiological Influence of Ozone". Proceedings of the Royal Society B: Biological ... including the phenomenon known as the ozone hole. Ozone therapy Ozoneweb Ozonolysis Polymer degradation Sterilization ( ... Its use can minimize bacterial growth, control parasites, eliminate transmission of some diseases, and reduce or eliminate " ...
In order to investigate this phenomenon, a centrifuge with even higher speeds was needed, and thus the ultracentrifuge was ... removing bacterial contaminants, etc. This processing technique is also used in the production of beverages, juices, coffee, ... separation of various lipoprotein fractions from plasma and deprotonisation of physiological fluids for amino acid analysis. ...
The targeted DamID (TaDa) approach uses the phenomenon of ribosome reinitiation to express Dam-fusion proteins at appropriately ... Brooks JE, Roberts RJ (February 1982). "Modification profiles of bacterial genomes". Nucleic Acids Research. 10 (3): 913-34. ... This allows for investigation into developmental or physiological processes in animal models. ... but is widespread in bacterial genomes, as part of the restriction modification or DNA repair systems. In Escherichia coli, ...
"The real phenomenon to be explained is this increase in variation rather than an upward trend in average complexity. There is, ... Thus, whereas some morphological and physiological differences are more salient to us, and more striking or surprising, this is ... bacterial evolution was confined between these two limits." (p. 153) Similarly, until a series of evolutionary innovations ... Further, complex adaptations are but one phenomenon explanations in evolutionary biology. Extrapolationism is not a good theory ...
The virus is immunosuppressive and may predispose to secondary bacterial infections. There are no scientific studies, which ... Physiological Reviews. 75 (3): 591-609. doi:10.1152/physrev.1995.75.3.591. PMID 7624395. Suzuki Y, Suzuki T, Matsumoto M (June ... "Induction of B cell-activating factor by viral infection is a general phenomenon, but the types of viruses and mechanisms ... usually associated with bacterial inflammation of the trachea and lung (tracheitis and bronchopneumonia, respectively). However ...
This phenomenon leads to the accumulation of butyrate in the nucleus, acting as a histone deacetylase (HDAC) inhibitor. One ... It is the form found in biological systems at physiological pH. A butyric (or butanoic) compound is a carboxylate salt or ester ... omnivores and herbivores have butyrate-producing bacterial communities dominated by the butyryl-CoA:acetate CoA-transferase ... Butyric acid (pKa 4.82) is fully ionized at physiological pH, so its anion is the material that is mainly relevant in ...
Bacterial Physiological Phenomena* * Flagella / physiology* * Movement Grant support * R01 GM093030/GM/NIGMS NIH HHS/United ... A field guide to bacterial swarming motility Nat Rev Microbiol. 2010 Sep;8(9):634-44. doi: 10.1038/nrmicro2405. Epub 2010 Aug 9 ... Here, I review the requirements that define swarming motility in diverse bacterial model systems, including an increase in the ...
Despite their ubiquity in nature, we lack an understanding of how these behaviors emerge from cellular-scale phenomena. Here, ... Exploiting fine-scale genetic and physiological variation of closely related microbes to reveal unknown enzyme functions. ... Thinking about bacterial populations as multicellular organisms.. Annu. Rev. Microbiol. 1998; 52: 81-104. View in Article * ... Bacterial growth in multicellular aggregates leads to the emergence of complex life cycles. *. Julia A. Schwartzman. Julia A. ...
keywords = "Animals, Anthelmintics/pharmacology, Bacterial Physiological Phenomena, Biodiversity, Drug Resistance, ...
The physiological phenomena of impaired body resistance, vascular changes, altered oral microflora and abnormal collagen ... Scannapieco FA, Bush RB, Paju S. Associations between periodontal disease and risk for nosocomial bacterial pneumonia and ... Oral infections serve as metabolic stressors that may exacerbate systemic disease [21] and bacterial products propagate an ... A permanent threat of systemic toxicity and injury may be anticipated through bacterial endotoxins from oral origin entering ...
Generation time varies widely across organisms and is an important factor in the life cycle, life history and evolution of organisms. Although the doubling time (DT) has been estimated for many bacteria in the laboratory, it is nearly impossible to directly measure it in the natural environment. However, an estimate can be obtained by measuring the rate at which bacteria accumulate mutations per year in the wild and the rate at which they mutate per generation in the laboratory. If we assume the mutation rate per generation is the same in the wild and in the laboratory, and that all mutations in the wild are neutral, an assumption that we show is not very important, then an estimate of the DT can be obtained by dividing the latter by the former. We estimate the DT for five species of bacteria for which we have both an accumulation and a mutation rate estimate. We also infer the distribution of DTs across all bacteria from the distribution of the accumulation and mutation rates. Both analyses suggest
This phenomenon is a part of many physiological and pathological processes, such as the neutrophilic response to bacterial ...
Urinary Tract Physiological Phenomena, Anti-Bacterial Agents, Human Rights, Renal Dialysis, Dialysis, Bone Diseases, Health ...
Bacterial Physiological Phenomena. W. Bialek and Setayeshgar, S., "Physical limits to biochemical signaling.", Proc Natl Acad ... Biomechanical Phenomena. W. Bialek, Cavagna, A., Giardina, I., Mora, T., Silvestri, E., Viale, M., and Walczak, A. M., " ... Biophysical Phenomena. T. Mora, Walczak, A. M., Bialek, W., and Callan, C. G., "Maximum entropy models for antibody diversity." ... Adaptation, Physiological. G. J. Stephens, Johnson-Kerner, B., Bialek, W., and Ryu, W. S., "From modes to movement in the ...
Bacterial Physiological Phenomena, Bacterial Physiological Phenomenon, Bacterial Physiological Physiology, Bacterial Bacterial ... Concept, Bacterial Physiological. Concepts, Bacterial Physiological. Phenomena, Bacterial Physiological. Phenomenon, Bacterial ... Bacterial Physiological Phenomena Entry term(s). Bacterial Physiological Concept Bacterial Physiological Concepts Bacterial ... Bacterial Physiological Concept. Bacterial Physiological Concepts. Bacterial Physiological Phenomenon. Bacterial Physiology. ...
keywords = "Ammonia, Archaeal Proteins, Bacteria, Bacterial Physiological Phenomena, Bacterial Proteins, Biodiversity, Cluster ... The abundance of archaeal and bacterial amoA gene copies and mRNA transcripts contrasted across the pH gradient. Archaeal amoA ... The abundance of archaeal and bacterial amoA gene copies and mRNA transcripts contrasted across the pH gradient. Archaeal amoA ... The abundance of archaeal and bacterial amoA gene copies and mRNA transcripts contrasted across the pH gradient. Archaeal amoA ...
Keyword is Bacterial Physiological Phenomena [Clear All Filters]. 2022. López JMontaño, Duran L, Avalos JL. Physiological ... Bacterial quorum sensing in complex and dynamically changing environments. Nat Rev Microbiol. 2019 ;17(6):371-382. *PubMed ... Dynamic switching enables efficient bacterial colonization in flow. Proc Natl Acad Sci U S A. 2018 ;115(21):5438-5443. *PubMed ... Evidence for biosurfactant-induced flow in corners and bacterial spreading in unsaturated porous media. Proc Natl Acad Sci U S ...
"Bacterial Physiological Phenomena", "type": "DefinedTerm" }, { "inDefinedTermSet": "https://www.nlm.nih.gov/mesh/", "name": " ... Physiological Status and Community Composition of Microbial Mats of the Ebro Delta, Spain, by Signature Lipid Biomarkers in ... Species-specific structural and functional diversity of bacterial communities in lichen symbioses in THE ISME JOURNAL: ... Bacterial Physiological Phenomena 157. ″ rdf:type schema:DefinedTerm 158. Nb686674e49834a38a4e71add2734581d schema:name ...
Bacterial Physiological Phenomena 100% * Workflow 74% * Coloring Agents 56% * Theoretical Models 22% ... Dive into the research topics of A General Workflow for Characterization of Nernstian Dyes and Their Effects on Bacterial ... A General Workflow for Characterization of Nernstian Dyes and Their Effects on Bacterial Physiology. ...
Bacterial Physiological Phenomena 94% * Methane 88% * Carbon 63% * malic acid 56% 1 Downloads (Pure) ... Engineering and characterization of bacterial nanocellulose as a future biomaterial for wide range of applications. Matti Karp ... Characterization of a novel bacterial cellulose producer for the production of eco-friendly piezoelectric-responsive films from ... Batch Experiments Demonstrating a Two-Stage Bacterial Process Coupling Methanotrophic and Heterotrophic Bacteria for 1-Alkene ...
Bacterial Physiological Phenomena 38% * Bacteria 35% * Cell Communication 24% * Cell Count 19% ... Bacterial social engagements. Henke, J. M. & Bassler, B. L., Nov 2004, In: Trends in Cell Biology. 14, 11, p. 648-656 9 p.. ... Bacterial quorum-sensing network architectures. Ng, W. L. & Bassler, B. L., Dec 1 2009, In: Annual review of genetics. 43, p. ... Bacterial small-molecule signaling pathways. Camilli, A. & Bassler, B. L., Feb 24 2006, In: Science. 311, 5764, p. 1113-1116 4 ...
Bacterial Physiological Phenomena 17% * Sulfamethoxazole 16% * Quinolones 13% * Tetracycline 12% * Hydrogen Peroxide 11% ...
Bacterial Physiological Phenomena Medicine & Life Sciences 42% View full fingerprint Cite this. * APA ... Thirty seven cases were compatible with bacterial processes, where 30 of them were due to enterotoxemia and the other 7 were ... Thirty seven cases were compatible with bacterial processes, where 30 of them were due to enterotoxemia and the other 7 were ... Thirty seven cases were compatible with bacterial processes, where 30 of them were due to enterotoxemia and the other 7 were ...
Plant Physiological Phenomena. (3 times). AW (1 time). bacterial wilt (1 time). CWDE (1 time). ≫ ... Immune System Phenomena. (1 time). ASOF (1 time). ORQ (1 time). QoL (1 time). ≫ ... 1991 t-PA, PAI, and protein C before and after vascular occlusion of the upper limb in patients with Raynauds phenomenon.. ≫ ...
Bacterial Physiological Phenomena. *Bacterial Proteins. *Bacterial Toxins. *Basic Helix-Loop-Helix Transcription Factors ...
Bacterial cell motility is essential for a range of physiological phenomena such as nutrient sensing, predation, biofilm ... EncB and EncC are similar to bacterial ferritins that can oxidize Fe+2 to less toxic Fe+3. We analyzed EncA, EncB, and EncC by ... Tomato bacterial wilt (TBW) caused by Ralstonia solanacearum is one of the most destructive soil-borne diseases. Myxococcus ... Bacterial Glycocalyx Integrity Impacts Tolerance of Myxococcus xanthus to Antibiotics and Oxidative-Stress Agents. ...
The bacterial phosphoenolpyruvate:sugar phosphotransferase system regulates a variety of physiological processes as well as ... The crr gene product (enzyme IIA(Glc) (IIA(Glc))) mediates some of these regulatory phenomena. In this report, we characterize ... The bacterial phosphoenolpyruvate:sugar phosphotransferase system regulates a variety of physiological processes as well as ... Bacterial_lip_FamI.1 : vibvu-VV12349Vibrio vulnificus lactonizing lipase(strain YJ016) VV1990 (strain CMCP6)VV12349.. BioH : ...
Child Nutritional Physiological Phenomena [‏1]‏. Climate Change [‏23]‏. Clinical Laboratory Services [‏1]‏. ... Anti-Bacterial Agents [‏3]‏. Antimicrobial Stewardship [‏1]‏. Asia and the Pacific [‏1]‏. ...
Bacterial Physiological Phenomena. Bacteria -- pathogenicity 27. Angioma pigmentosum et atrophicum Author(s): White, James C. ( ...
Although it is interesting because it presents the highest efficiency for assigning a bacterial host to a marker, epicPCR ... Our review also finds that phages may change their infection modes in response to environmental conditions or the physiological ... which describes a population-level phenomenon. ... role in the ecology and evolution of their bacterial hosts. In ...
Specifically, demonstrating that this phenomenon is performed differently than bacterial and eukaryotic organisms, a comparison ... Physiological and transcriptome-based profile of glycosyl hydrolases from the Halophilic archaeon Halogeometricum borinquense. ...
Bacterial Physiological Phenomena, Bacterial Proteins, Chemotaxis, Escherichia coli, Gene Expression Regulation, Bacterial, ... Genes, Bacterial, Models, Biological, Models, Theoretical, Phosphorylation, Rhodobacter sphaeroides, Signal Transduction, ...
The low bacterial burden in vasculature and lack of consensus around blood-based isolation of the causative pathogen, Borrelia ... Yet, the technique cannot currently be replaced by direct detection methods, such as bacterial culture or molecular analysis, ... potentially enhancing the phenomenon we describe here. Ultimately, evaluating the Borrelia content of platelets obtained from ... the pathogen burden and/or incubation length in the infection model could result in a number of physical and physiological ...
  • Facultative multicellular behaviors expand the metabolic capacity and physiological resilience of bacteria. (cell.com)
  • Physiological processes and properties of BACTERIA . (bvsalud.org)
  • Unfortunately, your eyelids aren't a very effective barrier against bacteria, so it's easy for a bacterial infection to flare up behind your lenses. (enctoday.com)
  • Although the consequences of such discoveries were not fully appreciated at the time-it was unclear whether this behavior would be found in all bacteria-the observations formed the foundation for studies of bacterial communication. (the-scientist.com)
  • The modern phenomenon of increasing prevalence of antibiotic resistance in clinically relevant bacteria threatens humanity's ability to use antibiotics to treat infection in both humans and animals. (medicinelakex1.com)
  • The skin , one of the largest and most complex organs of our body, performs numerous important functions including protecting us from external agents such as UV radiation, bacteria and chemical agents that promote oxidative stress phenomena accelerating skin aging . (bec-natura.com)
  • Analyses of the environmental distribution of bacteria are important for monitoring the AMR problem, and a rapid as well as viable pH- and temperature-independent bacterial separation method is required for collecting and concentrating bacteria from environmental samples. (bvsalud.org)
  • The Gram-positive bacterial aggregation was then successfully collected by using a 10 µm membrane filter, with Gram-negative bacteria remaining in the filtrate solution. (bvsalud.org)
  • Indeed, following the development of ever improving bioinformatic tools, there was a greatly increase in the arsenal of in silico methodologies, which have already resulted in significantly improved prediction and elucidation of the dynamics surrounding complex biological phenomena [20,21]. (biomedscis.com)
  • BenzoB-PAMAM(+) will thus be useful for application in biological analyses and could contribute to further investigations of bacterial distributions in environmental soil or water. (bvsalud.org)
  • Quorum sensing across bacterial and viral domains. (princeton.edu)
  • Negative emotional activation (stress response) can result in increased susceptibility to bacterial, viral and fungal infections, as well as parasite infestations. (dr-eva.com)
  • Key to these outcomes is the response and resilience of the host innate and adaptive immune system, as well as the microbial players (bacterial, fungal, viral) and the underlying physiological context. (nsf.gov)
  • Poisoning by viral and bacterial contamination of seafood, as well as marine envenomations, are not covered here. (medscape.com)
  • Topographic intestinal samples were taken, fixed in 15% formalinen solution and stained with H-E. Thirty seven cases were compatible with bacterial processes, where 30 of them were due to enterotoxemia and the other 7 were processes complicated with colibacilosis. (edu.pe)
  • These receptors are essential in human beings physiologically, taking part in the rules of all of our physiological activities such as for example neurotransmission, enzyme launch, inflammation or chemotaxis, aswell as our feeling of vision, taste and smell, by sensing endogenous or environmental stimuli through binding suitable ligands and AZD-3965 IC50 transducing related sign into cells typically through combined heterotrimeric G proteins. (mdm2-inhibitors.com)
  • The abundance of archaeal and bacterial amoA gene copies and mRNA transcripts contrasted across the pH gradient. (elsevier.com)
  • Archaeal amoA gene and transcript abundance decreased with increasing soil pH, while bacterial amoA gene abundance was generally lower and transcripts increased with increasing pH. (elsevier.com)
  • Findings indicate that different bacterial and archaeal ammonia oxidizer phylotypes are selected in soils of different pH and that these differences in community structure and abundances are reflected in different contributions to ammonia oxidizer activity. (elsevier.com)
  • Bacterial/archaeal/organellar polyadenylation. (openaccesspub.org)
  • Your eyelids aren't nearly as effective at blocking bacterial growth as your corneas, so an infection underneath your lenses is more likely to come into contact with these issues. (enctoday.com)
  • Bacterial quorum sensing in complex and dynamically changing environments. (princeton.edu)
  • Because this phenomenon is dependent upon a threshold cell density, bacterial communication has been termed "quorum sensing. (the-scientist.com)
  • Physiological limitations and opportunities in microbial metabolic engineering. (princeton.edu)
  • Despite their ubiquity in nature, we lack an understanding of how these behaviors emerge from cellular-scale phenomena. (cell.com)
  • Urine and Tissue Bacterial Loads Correlate With Voiding Behaviors in a Murine Urinary Tract Infection Model. (harvard.edu)
  • Intracellular signalling during bacterial chemotaxis. (ox.ac.uk)
  • They also suggest that both groups of ammonia oxidizers have distinct physiological characteristics and ecological niches, with consequences for nitrification in acid soils. (elsevier.com)
  • Actinobacteria represent one of the largest bacterial phyla harboring many species of high medical, biotechnological and ecological relevance. (bvsalud.org)
  • Desde el descubrimiento del dominio Archaea, se le hadado mucho interés a estudiar la regulación de expresión de genes en estos microorganismos. (uprm.edu)
  • En cuanto a arqueas halofílicas, poco se sabe acerca de los genes involucrados en el metabolismo de carbohidratos y cómo se regulan. (uprm.edu)
  • Despite the marked complexity of bacterial evolution, there is tremendous importance in unfolding the process by which antibiotic resistance genes emerge, disperse, and persist in the natural world. (medicinelakex1.com)
  • Cytoplasmic-male sterility (CMS) is a pollen abortion phenomenon determined by the interaction between the genes in the cytoplasm and the nucleus. (justia.com)
  • Findings in both in vitro and in vivo studies of the number of virus particles comprising a PFU are consistent with a "one-hit" phenomenon--namely, the cellular uptake of just one virus particle can lead to infection of a cell or an area of cell growth, creating a pock (an infected area of cells). (cdc.gov)
  • Interestingly, the FPR3 does not respond to fMLF, the prototypic N-formyl peptide usually generated at sites of bacterial infection or tissue injury, while FPR1 binds fMLF with high affinity and FPR2 does with low affinity [16], [17]. (mdm2-inhibitors.com)
  • The company is initially targeting the rapid screening of urine to detect Urinary Tract Infection (UTI), an illness that afflicts over 100 million patients annually, and is the most common bacterial infection in humans. (missouritechnology.com)
  • Roadmap on emerging concepts in the physical biology of bacterial biofilms: from surface sensing to community formation. (princeton.edu)
  • Thus, we aimed to develop a useful and selective bacterial separation method using a chemically synthesized nanoprobe. (bvsalud.org)
  • Specifically, demonstrating that this phenomenon is performed differently than bacterial and eukaryotic organisms, a comparison based on the sugar preference acting as a repressor. (uprm.edu)
  • Staining of such tissues with TSQ has demonstrated that zinc ions play very important roles in neuronal cell death, endocrine functions, and other physiological phenomena. (dojindo.com)
  • Prophage elements are major contributors to bacterial genome diversity and were shown to significantly shape bacterial fitness and host-microbe interactions. (bvsalud.org)
  • Overall, the current study highlights the remarkable diversity of prophages in actinobacterial genomes, with highly divergent prophages in actinobacterial genomes and thus provides an important basis for further investigation of phage-host interactions in this important bacterial phylum. (bvsalud.org)
  • Ultraviolet blood irradiation "energizes" the biochemical and physiological defenses of the body by the introduction of ozone from the oxygen circulating the in the bloodstream. (blogspot.com)
  • When the lenses of your contacts touch the surface of your eye, it creates an environment that is more conducive to bacterial growth. (enctoday.com)
  • Cefazolin is a first-generation, semisynthetic cephalosporin that arrests bacterial cell wall synthesis, inhibiting bacterial growth. (medscape.com)
  • Clindamycin inhibits bacterial growth, possibly by blocking dissociation of peptidyl transfer ribonucleic acid (t-RNA) from ribosomes, causing RNA-dependent protein synthesis to arrest. (medscape.com)
  • welchii] Enteritis necroticans 005.3 Food poisoning due to other Clostridia 005.4 Food poisoning due to Vibrio parahaemolyticus 005.8 Other bacterial food poisoning Food poisoning due to Bacillus cereus Excludes: salmonella food poisoning (003. (cdc.gov)
  • But we need look no further than our own intestines, which are populated with thousands of bacterial species that are constantly producing and releasing small, bioactive molecules. (the-scientist.com)
  • It is now widely accepted that many bacterial species use small chemical compounds to communicate with others of the same species, other bacterial species, and their hosts. (the-scientist.com)
  • Also provided are maize plants having all the physiological and morphological characteristics of the hybrid maize variety X95K897. (justia.com)
  • BacterioScan is a development-stage company which has developed, patented, and clinically validated a unique electro-optic technology and instrument for rapidly detecting and quantifying bacterial infections in bodily fluids. (missouritechnology.com)
  • This category will also be used in primary coding to classify bacterial infections of unspecified nature or site. (cdc.gov)
  • Additionally, the quantitative limits differing the physiological from the pathological cementum deposition - which characterizes the hypercementosis - are not measurable 31 . (bvsalud.org)
  • The efficacy of this phenomenon is attested to by the remarkable and consistent recovery of patients with a wide variety of diseases. (blogspot.com)
  • 027.8 Other 027.9 Unspecified OTHER BACTERIAL DISEASES (030-041) Excludes: bacterial venereal diseases (098. (cdc.gov)
  • It is provided as an additional code where it is desired to identify the bacterial agent in diseases classified elsewhere. (cdc.gov)
  • Even looking at a flower creates a physiological response involving millions of nerve cells that can in turn create a positive or negative change in our immune function (depending how we feel about the flower)! (dr-eva.com)
  • To address the physiological role of this phenomenon, we have shown that cysteine is engaged in the active metabolism of glutathione. (unipr.it)
  • This article describes the inversion of effects, a widespread medical phenomenon, through three possible mechanisms: non-linearity of dose-response relationship, different initial pathophysiological states of the organism, and pharmacodynamics of body response to the medicine. (hpathy.com)
  • 1 Ernest Starling to describe the chemical messengers produced in an organ or gland of the body that travel to distant organs to exert their physiological effects. (the-scientist.com)
  • The difficulties in model development for these endpoints can be attributed to the complex mechanisms relevant to the toxicity phenomena. (rutgers.edu)
  • This phenomenon is a result of interactions between our hypothalamus, our pituitary gland and our adrenal glands (the hypothalamic-pituitary-adrenal or HPA axis). (dr-eva.com)
  • In silico approaches are represented by techniques that use software to analyze data and often involve computational models or simulations based on existing information of closely related phenomena. (biomedscis.com)
  • These harmful phenomena have resulted in serious environmental and social problems around the world, problems which require us to look for solutions elsewhere than in established physical and chemical technologies. (nhbs.com)
  • Analysis of the prophage-encoded gene functions revealed that prophage sequences significantly contribute to the bacterial antiviral immune system, but no biosynthetic gene clusters involved in the synthesis of known antiphage molecules were identified in prophage genomes. (bvsalud.org)
  • But in the infected person, it is known that the pH of the person changes accordingly, due to the presence of the bacterial community. (kenyon.edu)
  • Here, I review the requirements that define swarming motility in diverse bacterial model systems, including an increase in the number of flagella per cell, the secretion of a surfactant to reduce surface tension and allow spreading, and movement in multicellular groups rather than as individuals. (nih.gov)
  • A phenomenon manifested by an agent or substance adhering to or being adsorbed on the surface of a red blood cell, as tuberculin can be adsorbed on red blood cells under certain conditions. (nih.gov)
  • The distribution of bacterial doubling times in the wild. (ox.ac.uk)
  • 1959. The physiological response of guinea pigs to atmospheric pollutants. (cdc.gov)
  • The company is building a query engine for subscribing to real-time events in the database and changing the fundamental nature of querying from request / response to subscribe / notify.Appbase is aiming to be at the forefront of the real-time web phenomenon by empowering developers to easily add real-time functionality to their apps, and solving the scaling challenges in real-time deployments for the larger enterprises. (missouritechnology.com)
  • I shall discuss about our very recent findings of wobbling motion in 183Au nucleus, which is a common phenomenon for an asymmetric top in the classical world but an extremely rare one in atomic nuclei. (jcbose.ac.in)
  • Cet article examine les connaissances actuelles sur la charge des maladies bucco-dentaires et systémiques et leur association, et met en lumière le manque d'information et de recherche dans la Région de la Méditerranée orientale et les autres pays en développement. (who.int)