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Beliveau, Lee - - 2009
Mahabeer, Suzette - - 2009
Within a society that is becoming increasingly multicultural, it is vital for nurses to become culturally competent in order to meet the needs of a culturally diverse population. Cultural knowledge plays a primary role in influencing the quality of care that nurses provide on a daily basis.
Prentice, Dawn - - 2009
The aim of this study was to examine the impact of introducing the Registered Nurses' Association of Ontario Best Practice Guideline (BPG), Assessment and management of foot ulcers for people with diabetes (2005), on foot ulcer incidence, recurrence, and amputation rate in adult diabetic clients who are undergoing chronic hemodialysis ...
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Baker, Jan - - 2009
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Farrell, A.P. - - 2009
Abstract: This review examines selected areas of cardiovascular physiology where there have been impressive gains of knowledge and indicates fertile areas for future research. Because arterial blood is usually fully saturated with oxygen, increasing cardiac output is the only means for transferring substantially more oxygen to tissues. Consequently, any behavioural ...
Sheriff, Michael - - 2009
The hypothesis that cold air temperatures ([T.sub.a]) constrain the metabolic diversity of high-latitude endotherms is based on the observation among birds and mammals that mean field metabolic rate (FMR) increases, whereas the variability of FMR decreases, from the warm tropics to the cold poles. However, there is a paucity of ...
Pearson, K.J. - - 2009
Simultaneous introduction of complex suites of exotic organisms into indigenous populations have poorly known magnitudes and consequences. We compared the effects of introduced piscivorous rainbow trout (Oncorhynchus mykiss (Walbaum, 1792)) and nonpiscivorous fathead minnows (Pimephales promelas Rafinesque, 1820) on growth, survival, susceptibility to predation, and antipredator behaviours of naive long-toed ...
Boldrin, F. - - 2009
Among tunicates, gamete morphology and sperm-egg interactions have been extensively investigated in ascidians, and to a lesser extent in appendicularians and thaliaceans. Sperm-egg interaction has been studied in only one salp, Pegea socia (Bosc, 1802). To determine if the pattern of internal fertilization of P. socia is generally applicable to ...
Trinkel, Martina - - 2009
For wildlife management and conservation biology, it is important to be able to estimate the status and distribution of animals and to monitor their population trends. In the Etosha National Park, Namibia, there is a lack of knowledge about numbers and distribution of spotted hyenas (Crocuta crocuta (Erxleben, 1777)) and ...
Rosengrave, P. - - 2009
Sperm traits of externally fertilizing fish species are typically measured in fresh (or salt) water, even though the spawning environment of their ova contains ovarian fluid. In this study, we measured sperm traits of Chinook salmon (Oncorhynchus tshawytscha (Walbaum in Artedi, 1792)) in both fresh water and dilute ovarian fluid ...
Gibbens, J. - - 2009
Postsealing population recovery rates of fur seals and sea lions have differed markedly, perhaps owing to habitat type. Australian fur seals (Arctocephalus pusillus doriferus Wood Jones, 1925) employ a benthic foraging mode similar to sea lions, and have exhibited similarly slow population recovery. Nonetheless, the population doubled in recent decades, ...
Pedrana, Julieta - - 2009
The guanaco (Lama guanicoe (Muller, 1776)) is a monomorphic polygynous mammal whose adult sex ratio is expected to be balanced or biased towards females. Remarkably male-biased sex ratios of adult guanacos are often estimated from road surveys. We analyzed the distribution of guanaco social groups recorded during road surveys in ...
Marquard-Petersen, Ulf - - 2009
Abundance, social organization, and population trend of the arctic wolf (Canis lupus arctos Pocock, 1935) in north and east Greenland, 1978-1998, were determined from 353 sightings of 552 wolves by the Danish military, by expeditions, and from 8 consecutive years (1991-1998) of fieldwork. Available evidence suggested that this wolf population ...
Cooper, William E., - - 2009
Prey often exhibit reduced escape behavior on islands where predators are absent or scarce. Models of escape and refuge use predict that prey from populations having lower predation pressure have shortened flight initiation distance (FID; distance between a predator and a prey when escape begins), reduced distance fled and tendency ...
Grovenburg, T.W. - - 2009
Knowledge of movement patterns of white-tailed deer (Odocoileus virginianus (Zimmermann, 1780)) inhabiting landscapes intensively modified by agricultural systems is important to the present and future understanding of deer ecology. Little information exists regarding daily and seasonal movements of white-tailed deer in north-central South Dakota. Therefore, our goal was to determine ...
Painter, M.L. - - 2009
We assessed diet of spotted bats (Euderma maculatum (J.A. Allen, 1891)) by visual analysis of bat feces and stable carbon ([[delta].sup.13]C]) and nitrogen ([[delta].sup.15]N]) isotope analysis of bat feces, wing, hair, and insect prey. We collected 33 fecal samples from spotted bats and trapped 3755 insects where bats foraged. Lepidopterans ...
Noren, D.P. - - 2009
The population decline of Steller sea lions (Eumetopias jubatus (Schreber, 1776)) may be linked to a decline in juvenile survivorship. Limitations in prey availability may contribute to the decline, thus it is important to understand fasting capacities of Steller sea lions. For most mammals, fat catabolism is the preferred energetic ...
Maki, M.L. - - 2009
The survival of and interactions between a Pseudomonas putida strain labelled with a red fluorescent protein gene (WT-rfp) and its green fluorescent protein gene-labelled rpoS- mutant (KO-gfp) were examined. The generation times of the planktonic WT-rfp and KO-gfp in trypticase soy broth were not significantly different (i.e., p > 0.05) ...
Alexander, T.W. - - 2009
The effect of storing bovine feces in Cary-Blair medium on the recovery of antimicrobial-resistant Escherichia coli was investigated. Feces from cattle at a research feedlot (n = 50) and at a commercial feedlot (n = 46) were processed immediately or after storage in Cary-Blair medium for 8 days at 5 ...
Qun, Zhang - - 2009
The ATP-dependent caseinolytic proteases (Clp) play a fundamental role in stress tolerance and virulence in many pathogenic bacteria. Although ClpE of Streptococcus pneumoniae is required for growth at high temperatures, little is known about the role of ClpE in pathogenesis. In this study, we observed that the virulence of the ...
Perrine-Walker, Francine - - 2009
Competition assays with Sinorhizobium meliloti 1021 and its GFP-labelled pSymA cured and deleted derivatives, SmA818 and SmA146, demonstrated that Sm1021 could still inhibit rice seedling growth even when outnumbered by a large excess of the noninhibitory cured or deleted strain. The wild-type strain Sm1021 also inhibited the growth of its ...
Bester, Elanna - - 2009
We report on the ability of surface-associated microbes to produce and release single planktonic cells to the bulk liquid as early as 6 h after attachment, with pure culture and mixed-species biofilms yielding up to ~1 x [10.sup.6] cells/[cm.sup.2] of attachment area per hour to the effluent after 24 h. ...
Ramirez-Bahena, Martha-Helena - - 2009
Trifolium species are the most common legumes present in wild Spanish soils; however, there are no studies to date on the diversity of rhizobia nodulating clover in Spain. Twenty strains from different Spanish soils with acidic, neutral, and basic pH were selected to study their genotypic, phenotypic, and symbiotic features. ...
Reguera, Maria - - 2009
Megaplasmid pSymB of the nitrogen-fixing symbiont Sinorhizobium meliloti, implicated in adaptation to hyperosmotic stress, contains 11 gene clusters that apparently encode surface polysaccharides. However, only 2 of these clusters, containing the exo and exp genes, have been associated with the synthesis of the acidic exopolysaccharides succinoglycan and galactoglucan, respectively. The ...
Nix, Shannon - - 2009
A growth-chamber experiment was conducted to determine how foliar disease or wounding affects the ability of 2 phylloplane yeasts (Rhodotorula glutinis and Cryptococcus laurentii) to colonize leaves of tall fescue (Festuca arundina-cea). Yeasts were applied separately and together onto healthy leaves, leaves infected with Rhizoctonia solani (diseased), and mechanically bruised ...
Providenti, Miguel - - 2009
In this study, we show that noncoding sequences from amplified fragment length polymorphisms (AFLPs) can provide robust and sensitive genetic markers suitable for PCR-based discrimination of closely related strains of Bacillus and Paenibacillus, and quantitative PCR (gPCR)-based tracking of the strains in complex natural systems like soil. Quantitative PCR was ...
Stachowiak, Radoslaw - - 2009
Listeriolysin (LLO) is the key virulence factor critical for Listeria monocytogenes pathogenesis. Listerial cytolysin belongs to the family of cholesterol-dependent cytolysins (CDCs), a group of pore-forming toxins produced by related gram-positive bacteria. Most CDCs contain a cysteine residue in the conserved undecapeptide--a sequence that is highly preserved among this group ...
Van Alst, Nadine - - 2009
Nitrate serves as a terminal electron acceptor under anaerobic conditions in Pseudomonas aeruginosa. Reduction of nitrate to nitrite generates a transmembrane proton motive force allowing ATP synthesis and anaerobic growth. The inner membrane-bound nitrate reductase NarGHI is encoded within the narK1K2GHJI operon, and the periplasmic nitrate reductase NapAB is encoded ...
Lu, Phoebe - - 2009
Chromatin structure is important for the compaction of eukaryotic genomes, thus chromatin modifications play a fundamental role in regulating many cellular processes. The coordinated activities of various chromatin-remodelling and--modifying complexes are crucial in maintaining distinct chromatin neighbourhoods, which in turn ensure appropriate gene expression, as well as DNA replication, repair, ...
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