
	Where results make sense

Topic: Crowding out (biology)

Related Topics

Blair Betts

The Adventure of the Wax Gamblers

	Systems Biology (Site not responding. Last check: 2007-10-26)
		Biology deals with phenomena that are intrinsically more complex and more difficult to investigate than those normally studied in other natural sciences.
		We are studying the effect of macromolecular crowding in the reaction kinetics.
		Understanding biology at larger scales of integration remains fascinating and vitally important for applications ranging from biosciences to psychology and population biology.
	www.informatics.indiana.edu /systemsbiology/research.html (418 words)

	Effects of macromolecular crowding on protein folding and aggregation
		We have studied the effects of polysaccharide and protein crowding agents on the refolding of oxidized and reduced hen lysozyme in order to test the prediction that association constants of interacting macromolecules in living cells are greatly increased by macromolecular crowding relative to their values in dilute solutions.
		Since crowding theory predicts that aggregation should increase under conditions of macromolecular crowding, it is important to demonstrate that the observed decreases in lysozyme yield under crowded conditions as measured by enzymatic activity are actually caused by aggregation.
		Although at present it is not fully established which crowding agents simulate the intracellular environment most accurately, the fact that similar results are obtained by using crowding agents with very different physicochemical properties suggests that the qualitative effects of macromolecular crowding are not critically dependent on the nature of the crowding agent employed.
	www.nature.com /emboj/journal/v18/n24/full/7592094a.html (5190 words)

	Dentistry: Tooth crowding
		I am a Fellow in the American Academy of Pediatric Dentistry, and a member of the American Association of Orthodontics, as well as a member of the American Dental Association and the Dental Society of the State of New York.
		I realize that crowding is caused not just by the two crooked teeth, but by the teeth around them as well, so I understand if this "two tooth approach" is not plausible.
		There is certainly a limit on the degree of crowding that can be corrected by Invisalign, or any other non-braces approach for that matter.
	en.allexperts.com /q/Dentistry-966/Tooth-crowding.htm (743 words)

	History of Disease
		Disease, it was contended, arose when the humors were out of balance and treatment was designed to restore the balance.
		For example, when a fever arose, the hot dry disease was a result of excess yellow bile and a cold wet bath was prescribed to favor a balancing increase in phlegm.
		Out of this, discoveries of the agents for many diseases were discovered including typhoid fever, diphtheria, rabies, tetanus and tuberculosis.
	www.rhodes.edu /biology/glindquester/viruses/history.html (2972 words)

	Influenza Epidemic of 1918
		When the second wave of influenza broke out in Boston, it spread with remarkable speed, but both the city and the state of Massachusetts fooled themselves as to the epidemic's seriousness.
		Crowded, dirty, and poorly ventilated living conditions contributed to the spread of the disease.
		If the flu had killed a famous figure of the time, it would have been more widely remembered, but the most famous individuals were over the age of 40, and out of the stage of young adulthood where the flu claimed its greatest number of victims.
	www.haverford.edu /biology/edwards/disease/viral_essays/redicanvirus.htm (2615 words)

	Humanistic Biology, by Rene' Dubos
		Comparative biology has revealed, furthermore, that man is linked to all living organisms through a common line of descent, and shares with them many characteristics of physicochemical constitution and of biological organization; the philosophical concept of the "great chain of being" can thus be restated now in the form of a scientific generalization.
		Thus, crowding, isolation, challenge of any sort have effects which have their origin in the evolutionary past, and tend to imitate the kind of response which was then favorable for biological success-even when such a responses no longer suitable to the conditions of the modern world.
		This neglect is the result of the historical accident that scientific biology has been identified from its very beginning with the concept that the body is a complex but otherwise ordinary machine, and that detailed analysis of its elementary structures and energy mechanisms is the only valid approach to the understanding of the living organism.
	www.westga.edu /~psydept/os2/os1/dubos.htm (6509 words)

	The Kaufman Group at Columbia University: Research
		Crowding may lead to a variety of unexpected dynamics, such as slow diffusion or anomalous diffusion.
		At its extreme, crowding leads to "jamming," in which a system becomes structurally arrested in a particular configuration and will not relax from that configuration on a time scale measurable by even the longest practical experiments.
		In the case of this densely packed colloidal system, in which the colloids are made out of polymethylmethacrylate, we can easily image the colloids and distinguish them from their background solvent (cyclohexylbromide and decalin).
	www.columbia.edu /cu/chemistry/groups/kaufman/research.html (812 words)

	Rediscovering Biology - Online Textbook: Unit 5 Emerging Infectious Diseases
		Bacteria move readily from person to person; global travel has contributed significantly to the dissemination of novel pathogens, including drug-resistant strains.
		Crowding also contributes to the dissemination of novel pathogens.
		In crowded cities, especially in third world countries where adequate sanitation may be lacking, microbes arrive by immigrants from diverse locations.
	www.learner.org /channel/courses/biology/textbook/infect/infect_9.html (226 words)

	New Jersey Scuba Diver - Marine Biology - Crustaceans: Lobster
		Inshore lobsters tend to stay in one place, seldom moving more than a mile or so, but deepwater lobsters farther out on the continental shelf follow a seasonal migratory pattern: shoreward in summer, returning to the shelf again in the autumn.
		The first dilemma was figuring out why their stomachs contained what appeared to be bits of fl plastic.
		Although it's not readily apparent, the legs and claws are now pulling out of their casings in the old shell.
	www.njscuba.net /biology/sw_lobster.html (4460 words)

	MOLECULAR BIOLOGY: ON MACROMOLECULAR CROWDING
		Experiments carried out on solutions containing comparable volume fractions of purified proteins or chemically inert polysaccharides have demonstrated that excluded volume effects in such media can result in the alteration of equilibrium and rate constants by up to several orders of magnitude.
		Thus crowding is expected to shift equilibria toward a state of the system in which excluded volume is minimized.
		Hence crowding exerts a generalized pressure for the reduction of the surface to volume ratio.
	scienceweek.com /2006/sw060512-1.htm (576 words)

	malaria
		Crowded homes and congregate settings (such as shelters, hospitals, and prisons) tend to foster transmission.
		Although pulmonary TB is the most common form, the disease can affect virtually any organ (for example, lymph nodes, brain, and genitals).
		Widows and orphans lose not only loved ones but also breadwinners, and in many cases they are left with debts from the medical care of TB victims.
	homepage.mac.com /eannaoboyle/dypbiology/humanphysiology/tb.html (812 words)

	New Jersey Scuba Diver - Marine Biology - Crustaceans: Lobster
		Inshore lobsters tend to stay in one place, seldom moving more than a mile or so, but deepwater lobsters farther out on the continental shelf follow a seasonal migratory pattern: shoreward in summer, returning to the shelf again in the autumn.
		The first dilemma was figuring out why their stomachs contained what appeared to be bits of fl plastic.
		Although it's not readily apparent, the legs and claws are now pulling out of their casings in the old shell.
	njscuba.net /biology/sw_lobster.html (4458 words)

	Nature & Science » Biology Resources » Integrated Pest Management Manual
		A detailed treatise on the biology, natural enemies, and control of aphids was edited by Minks and Harrewijn (1988).
		The development of winged individuals in a population seems to be triggered by the degree of crowding on the host plant, but the way in which this works depends on the species (Hille Ris Lambers 1966).
		The part of the plant to be examined also will be determined by the biology of the pest.
	www.nature.nps.gov /biology/ipm/manual/aphids.htm (5307 words)

	WU Libraries Biol.Lib. History
		Previous to that time a number of monographs that were classics in biology had been secured by professor Grave from various sources and they became the nucleus of the new library.
		Also, there was less crowding in the library as those who just used it as a place to study moved to Olin.
		Over the years the Biology department has recorded some of the larger classes and these have been available to the students in the library first on reel to reel tape, then VHS, and now streaming video.
	library.wustl.edu /units/biology/history.html (1135 words)

	ECourses-Ain Shams University
		The Department of Biology offers undergraduate, graduate, and postdoctoral training programs ranging from general biology to more specialized fields of study and research.
		The quantitative aspects of biology - including molecular biology, biochemistry, genetics, and cell biology - represent the core of the academic program.
		Courses are designed to provide a solid background in the physical sciences and to develop an integrated scientific perspective.
	net.shams.edu.eg /Biology.asp (535 words)

	Next
		You can know they are dry because a couple minutes after they come out of the drier or any warm place, the newspapers will feel warm if dry, distinctly cool if moisture is still evaporating.
		The open edges of the newspapers should all face the spine of the folder, so plants are less likely to slip out.
		A longer time in the freezer is alright if crowding is not a problem.
	www.flint.umich.edu /departments/biology/Herbarium_web/Herbarium_Web/Storing.htm (334 words)

	Introduction: Biology of the Mouth: Merck Manual Home Edition
		Saliva aids in chewing and eating by gathering food into lumps so that food can slide out of the mouth and down the esophagus, and by dissolving foods so that they can more easily be tasted.
		Each of these baby teeth will be pushed out by a permanent tooth, starting at about age 6.
		Lack of space due to crowding or rotated permanent teeth may be the problem, and early orthodontic therapy (braces) may be necessary.
	www.merck.com /mmhe/au/sec08/ch109/ch109a.html (1293 words)

	Dr. Paul Ehrlich
		He joined the faculty of Stanford University as an assistant professor of biology in 1959, became an associate professor in 1962, and was promoted to full professor of biology in 1966.
		Ehrlich pointed out that the doubling time of the human population of the world has been decreasing at an accelerating rate.
		Ehrlich has written numerous scientific papers, on such subjects as crowding in human populations, the relation of population pressures to socio-political events, plant-herbivore co-evolution, butterfly evolution and morpho-taxonomy, theoretical aspects of population biology, and selective changes in natural populations of water snakes.
	www.umsl.edu /~biology/hwec/WEArecipients/ehrlich.html (642 words)

	Biology of Fish II
		Biology of Fish II Written by: Robert B. Moeller Jr., DVM
		Flexibacter columnaris infections are frequently associated with stress conditions.
		Predisposing factors for Columnaris disease are high water temperature (25oC-32oC.), crowding, injury, and poor water quality (low oxygen and increased concentrations of free ammonia).
	article.dphnet.com /cat-02/biology1.shtml (2928 words)

	Biology of the Famine
		People are more likely to leave their home area, and therefore diseases spread to outside areas (Cuny 18).
		By exploring the death of a child, Murphy is most likely to reach the emotions of his readers.
		The pain of the Connor family is played out in a way that touches the reader's heart.
	www4.cord.edu /projects/murphy/Famine/RelatedTopics/Biology.htm (1611 words)

	Ann Veronica, by H. G. [Herbert George] Wells; Biology Part 2 Page 1
		The crowding impressions of the previous weeks seemed to run together directly her mind left the chaotic search for employment and came into touch again with a coherent and systematic development of ideas.
		It throws out a number of broad experimental generalizations, and then sets out to bring into harmony or relation with these an infinitely multifarious collection of phenomena.
		The little streaks upon the germinating area of an egg, the nervous movements of an impatient horse, the trick of a calculating boy, the senses of a fish, the fungus at the root of a garden flower, and the slime upon a sea-wet rock--ten thousand such things bear their witness and are illuminated.
	www.pagebypagebooks.com /H_G_Herbert_George_Wells/Ann_Veronica/Biology_Part_2_p1.html (646 words)

	The biology of odor control
		Additionally, the biofilters serve as a backup to the chemical scrubber at the plant's primary clarifiers.
		Hyperion corrected the design flaws, but another problem surfaced: The biofilter was being used to treat odors from a digester gas desulfurization facility, and the bacteria in the biofilter were ineffective on the carbon dioxide and methane contained in the air stream.
		While biofiltration may not be appropriate for every city or county, the number of success stories has grown over the years, leading Gray to predict that many more local governments will adopt the technology.
	americancityandcounty.com /mag/government_biology_odor_control (2307 words)

	Genome Biology \| Full text \| Getting positive about selection
		Strikingly, the first wave of pseudogenization of olfactory receptor genes showed a perfect correlation with the advent of full trichromatic vision: once you see the world in color, smelling it precisely seems to be less of an issue.
		It was also suggested during the discussion that the second wave might have been linked to the increasing crowding of human populations, as a result of which smelling one's neighbor too keenly could be a disadvantage, but the true cause remains to be understood.
		This study was met with considerable interest and even enthusiasm, perhaps as a glimpse of things to come with the dawn of genuine biological understanding of genomics.
	genomebiology.com /2003/4/8/331 (1427 words)

	Biology Department
		Parasites are usually crowded into relatively few, heavily infected hosts.
		For example, the negative binomial parameter, k, cannot measure overdispersed distributions and is not comparable among samples with different mean numbers of parasites per host.
		Lopez investigates whether the mean crowding and patchiness indices proposed by Monte Lloyd in 1967 provide more useful measures of parasite aggregation.
	www.gvsu.edu /biology/index.cfm?id=01353520-EC10-5687-4BFF6E8197D235F3 (461 words)

	St. Louis County Dentists \| Saint Louis Dentists
		Their roles are to educate the public, using applied dental research, and initiate community-wide dental care and preventive programs.
		Endodontics encompasses basic and clinical sciences of normal pulp biology and the causes, diagnosis, prevention, and treatment of diseases and injuries to the pulp and associated periradicular conditions.
		Orthodontists most commonly treat crowding of the teeth, overbites, open bites (when upper and lower incisor teeth do not touch when biting down), spacing problems, crossbite and underbites, or lower jaw protrusion.
	www.stlouiscountydentists.com (714 words)

	Crowding The Rim: News Updates
		A three-day international summit called "Crowding the Rim" was a successful educational endeavor that gave seven student delegates a better understanding of the risks of natural hazards in the Pacific Rim and in their local communities.
		Over 160 participants from over 40 different countries attended the summit, which took place in the beginning of August at Stanford University, and reflected the different perspectives of those in social, business, political, and scientific fields.
		Kennedy felt it was essential to involve students in the summit.
	www.crowdingtherim.org /docs/ctr/anayas_summit.html (562 words)

	Study Answers
		MPF which stands for "maturation-promoting factor", is a cyclin dependent kinase that must be at some threshold concentration in a cell for the cell to move from G2 to the mitotic phase of the cell cycle.
		Crowding of animal cells apparently is a physical signal that causes stoppage of cell division and this is referred to as "density dependent inhibition".
		Most animal cells must be attached to some sort of substrate (culture vessel in vitro, extracellular matrix in vivo) to divide and this is referred to as "anchorage dependence".
	www.biology.lsu.edu /webfac/dlongstreth/biol12014f02/study_answers.htm (6920 words)

	Genome Biology \| Full text \| Challenging the spliceosome machine
		Indeed, this problem highlights a more general need in molecular biology to be able to score individual instances of conserved motifs so that their functions can be assessed quantitatively.
		In this model, the interactions would be ordered (donor, acceptor, donor etc.), and interactions with the spliceosome would be aided by successful interactions of neighboring splice sites (indicated by the interdependence of neighborhood binding site strengths and their relationships to intron and exon lengths).
		If a weak form of either pattern (three out of four bases matching) is found at the ends of the region, record the boundary positions as above; otherwise, terminate the algorithm.
	genomebiology.com /2006/7/1/R3 (6483 words)

	Tall Whitetop's crowding out the natives - western US weed Agricultural Research - Find Articles
		It's invaded tens of thousands of acres of pastures, marshes, and riverbanks throughout the West, crowding out desirable native plants.
		To find out whether the weed is indeed dangerous for animals to eat, scientists in the ARS Poisonous Plant Research Unit at Logan, Utah, have begun tests.
		Today, pastures and prime riparian areas in Nevada and California, once prized for their diverse plant and animal life, are overrun with thick, woody stands of tall whitetop, which grows up to 3 feet high.
	findarticles.com /p/articles/mi_m3741/is_n5_v41/ai_13993834?lstpn=article_results&lstpc=search&lstpr=external&lstprs=other&lstwid=1&lstwn=search_results&lstwp=body_middle (680 words)

Try your search on: Qwika (all wikis)