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Browsing Biology, Department of by Title
Now showing items 13-32 of 52
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Dataset in support of Guenther, R.G. et al., 2022. "Effects of temperature and pH on the growth, calcification, and biomechanics of two species of articulated coralline algae"
(2022-10-10)This dataset supports the manuscript: Guenther, R.G. et al., 2022. "Effects of temperature and pH on the growth, calcification, and biomechanics of two species of articulated coralline algae" in Marine Ecology Progress ... -
The disadvantage of combinatorial communication
(The Royal Society of London, 2004)Combinatorial communication allows rapid and efficient transfer of detailed information, yet combinatorial communication is used by few, if any, non-human species. To complement recent studies illustrating the advantages ... -
Does Mother Nature Punish Rotten Kids?
(Kluwer Academic Publishers, 1999)The theory of parent-offspring conflict predicts that mothers and their offspring may not agree about how resources should be allocated among family members. An offspring, for example, may favor a later weaning date than ... -
Ecological consequences of foraging mode
(Ecological Society of America, 1981-08)Desert lizards are typically either widely foraging or sit-and-wait predators, and these foraging modes are correlated with major differences in ecology. Foraging mode is related to the type of prey eaten by lizards. Widely ... -
Ecological theory suggests that antimicrobial cycling will not reduce antimicrobial resistance in hospitals
(Proceedings of the National Academy of Sciences USA, 2004)Hospital-acquired infections caused by antibiotic-resistant bacteria pose a grave and growing threat to public health. Antimicrobial cycling, in which two or more antibiotic classes are alternated on a time scale of months ... -
Effect of human leukocyte antigen heterozygosity on infectious disease outcome: the need for allele-specific measures
(Biomed Central, 2003-01-24)Background: Doherty and Zinkernagel, who discovered that antigen presentation is restricted by the major histocompatibility complex (MHC, called HLA in humans), hypothesized that individuals heterozygous at particular MHC ... -
Effect of human leukocyte antigen heterozygosity on infectious disease outcome: The need for allele-specific measures
(2003)Background: Doherty and Zinkernagel, who discovered that antigen presentation is restricted by the major histocompatibility complex (MHC, called HLA in humans), hypothesized that individuals heterozygous at particular MHC ... -
Epidemiology of antibiotic resistance in hospitals: paradoxes and prescriptions
(National Academy of Sciences, 2000-02-15)A simple mathematical model of bacterial transmission within a hospital was used to study the effects of measures to control nosocomial transmission of bacteria and reduce antimicrobial resistance in nosocomial pathogens. ... -
Evaluating temperature regulation by field-active ectotherms: the fallacy of the inappropriate question
(University of Chicago, 1993-11)We describe a research protocol for evaluating temperature regulation from data on small field-active ectothermic animals, especially lizards. The protocol requires data on body temperatures (Tb) of field-active ectotherms, ... -
Evolution of Mutator Genes in Bacterial Populations: The Roles of Environmental Change and Timing
(Genetics Society of America, 2003-07)Recent studies have found high frequencies of bacteria with increased genomic rates of mutation in both clinical and laboratory populations. These observations may seem surprising in light of earlier experimental and ... -
Germline bottlenecks and the evolutionary maintenance of mitochondrial genomes
(Genetics, 1998-08)Several features of the biology of mitochondria suggest that mitochondria might be susceptible to Muller’s ratchet and other forms of evolutionary degradation: Mitochondria have predominantly uniparental inheritance, appear ... -
Hot rocks and not-so-hot rocks: retreat-site selection by garter snakes and its thermal consequences
(Ecological Society of America, 1989-08)Studies of behavioral thermoregulation of ectotherms have typically focused only on active animals. However, most temperate-zone ectotherms actually spend more time sequestered in retreats (e.g., under rocks) than active ... -
How often do lizards "run on empty"?
(Ecological Society of America, 2001-01)Energy balance is relevant to diverse issues in ecology, physiology, and evolution. To determine whether lizards are generally in positive energy balance, we synthesized a massive data set on the proportion of individual ... -
Interspecific mutualism: Puzzles and predictions
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Latitudinal pattern of between-altitude faunal similarity: mountains might be "higher" in the tropics
(The University of Chicago, 1978-01)Moving up or down a mountain from a given site, one encounters faunas that differ by varying degrees. The elevational separation between sites obviously influences the magnitude of that difference (faunal similarity is ... -
Mathematical models of RNA silencing: Unidirectional amplification limits accidental self-directed reactions
(National Academy of Sciences USA, 2003-09-30)RNA silencing, found broadly throughout the eukaryotes, post-transcriptionally suppresses the expression of aberrant genes including those of many viruses and transposons. Similar to the specific immune system of vertebrates, ... -
Modeling of antibiotic resistance in the ICU - US Slant
(Kluwer, 2002)Mathematical models are valuable tools with which to predict and explain the epidemiology of nosocomial infection. As such, modeling will play a crucial role in the effort to control the growing threat posed in hospitals ... -
Models of CD8+ Responses: 1. What is the Antigen-independent Proliferation Program
(Elsevier Science, 2003)Recent experimental results show that even brief stimulation with antigen can cause antigenspecic CD8 T-cells to undergo sustained proliferation followed by differentiation into memory cells. These results show that the ... -
Multiple Mating, Sperm Competition, and Meiotic Drive
(Blackwell Publishing LTD, 1995)Most discussions of "sperm competition" have ignored the potential for competition among the different sperm genotypes present in the ejaculate of a single male. Rivalry within ejaculates may limit cooperation among the ... -
Natural selection, infectious transfer, and the existence conditions for bacterial plasmids
(Genetics, 2000-08)Despite the near-ubiquity of plasmids in bacterial populations and the profound contribution of plasmid-borne genes and infectious gene transfer to the adaptation and evolution of bacteria, the mechanisms responsible for ...