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Results 301 - 347 of 347
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Herrera H M - - 2011
We examined by parasitological tests (hemocultures and buffy coat) infection by Trypanosoma cruzi and T. evansi in blood samples from Leopardus pardalis, Cerdocyon thous and domestic dogs. Besides, 25 T. cruzi isolates previously derived from feral pigs and small wild mammals were here characterized by miniexon gene and demonstrated to ...
Grigsby-Toussaint Diana S - - 2011
There is growing evidence that exposure to food marketing influences dietary preferences among youth. Few studies exploring this association, however, have focused on the retail food store environment where families negotiate the influence of food and beverage marketing on purchasing practices. Consequently, we sought to examine: (i) the extent to ...
Solomon Christopher T - - 2011
Fluxes of organic matter across habitat boundaries are common in food webs. These fluxes may strongly influence community dynamics, depending on the extent to which they are used by consumers. Yet understanding of basal resource use by consumers is limited, because describing trophic pathways in complex food webs is difficult. ...
Rapaport Lisa G - - 2011
Young primates in the family Callitrichidae (the marmosets and tamarins) receive extensive and relatively prolonged care from adults. Of particular note, callitrichid young are routinely provisioned until well after weaning by parents and helpers, which is in stark contrast to typical juvenile primates, who must acquire most of their food ...
Rodewald Amanda D - - 2011
The extent to which resource subsidies affect food web dynamics is poorly understood in anthropogenic landscapes. To better understand how species interactions are influenced by subsidies, we studied breeding birds and nest predators along a rural-to-urban landscape gradient that varied in subsidies provided to generalist predators. We hypothesized that resource ...
Schmidt Stephanie N - - 2011
Anthropogenic activities have significantly altered freshwater fish communities. Extirpations of deepwater coregonines (Coregonus spp.), a diverse group of fish species, have left vast areas of the Laurentian Great Lakes devoid of a deepwater fish community. Currently, fisheries managers are considering restoring populations by reintroducing deepwater coregonines from Lake Superior and ...
Macfadyen Sarina - - 2011
Landscape management affects species interactions within a community, leading to alterations in the structure of networks. Modules are link-dense regions of the network where species interact more closely within the module than between modules of the network. Insufficient network resolution has meant that modules have proved difficult to identify, even ...
Marczak L B - - 2011
The shrub Iva frutescens, which occupies the terrestrial border of U.S. Atlantic Coast salt marshes, supports a food web that varies strongly across latitude. We tested whether latitudinal variation in plant quality (higher at high latitudes), consumption by omnivores (a crab, present only at low latitudes), consumption by mesopredators (ladybugs, ...
Konik Ewa A - - 2011
ABSTRACT In the European Union, the manufacturing of and the trade in herbs and dietary supplements are regulated by pharmaceutical and food laws. While dietary supplements are subject to food laws, provisions dealing with herbs are primarily to be found in pharmaceutical regulations. Having a basic understanding of the complexities ...
Ahn Yong-Yeol - - 2011
The cultural diversity of culinary practice, as illustrated by the variety of regional cuisines, raises the question of whether there are any general patterns that determine the ingredient combinations used in food today or principles that transcend individual tastes and recipes. We introduce a flavor network that captures the flavor ...
Kosa Katherine M - - 2011
The purpose of the study was to develop and evaluate the effectiveness of using Web-based and print materials for improving food safety practices to reduce the risk of foodborne illness among older adults. The study used a randomized controlled design, with participants assigned to an intervention group or control group. ...
Miyamoto Shin'ichi - - 2011
Megaesophagus resulting from achalasia is a rare but serious cause of acute airway obstruction. We treated achalasia in a 52-year-old woman with acute respiratory distress and stridor. Chest X-ray and endoscopy showed a marked dilatation of the cervical esophagus with a large amount of undigested food. Emergency suction of the ...
Bohan David A - - 2011
Networks of trophic links (food webs) are used to describe and understand mechanistic routes for translocation of energy (biomass) between species. However, a relatively low proportion of ecosystems have been studied using food web approaches due to difficulties in making observations on large numbers of species. In this paper we ...
Pires Mathias M - - 2011
Simple models inspired by processes shaping consumer-resource interactions have helped to establish the primary processes underlying the organization of food webs, networks of trophic interactions among species. Because other ecological interactions such as mutualisms between plants and their pollinators and seed dispersers are inherently based in consumer-resource relationships we hypothesize ...
Piwosz Kasia - - 2011
Free-living nano-sized flagellates are important bacterivores in aquatic habitats. However, some slightly larger forms can also be omnivorous, i.e., forage upon both bacterial and eukaryotic resources. This hitherto largely ignored feeding mode may have pronounced implications for the interpretation of experiments about protistan bacterivory. We followed the response of an ...
Anderson Tavis K - - 2011
Parasites significantly alter topological metrics describing food web structure, yet few studies have explored the relationship between food web topology and parasite diversity. This study uses quantitative metrics describing network structure to investigate the relationship between the topology of the host food web and parasite diversity. Food webs were constructed ...
Comeau André M - - 2011
Increasing global temperatures are having a profound impact in the Arctic, including the dramatic loss of multiyear sea ice in 2007 that has continued to the present. The majority of life in the Arctic is microbial and the consequences of climate-mediated changes on microbial marine food webs, which are responsible ...
Soureti Anastasia - - 2011
Forming specific health plans can help translate good intentions into action. Mobile text reminders can further enhance the effects of planning on behavior. Our aim was to explore the combined impact of a Web-based, fully automated planning tool and mobile text reminders on intention to change saturated fat intake, self-reported ...
Coll Marta - - 2011
Seagrass beds provide important habitat for a wide range of marine species but are threatened by multiple human impacts in coastal waters. Although seagrass communities have been well-studied in the field, a quantification of their food-web structure and functioning, and how these change across space and human impacts has been ...
McAuley Claire - - 2011
Food consumption advisories are often posted when industrial activities are expected to affect the quality and availability of traditional foods used by First Nations. We were recently involved in a project and asked to summarize details regarding the impacts of traditional food consumption advisories with respect to compliance, broader changes ...
Baiser Benjamin - - 2011
Ecological communities show great variation in species richness, composition and food web structure across similar and diverse ecosystems. Knowledge of how this biodiversity relates to ecosystem functioning is important for understanding the maintenance of diversity and the potential effects of species losses and gains on ecosystems. While research often focuses ...
Gravel Dominique - - 2011
We are interested in understanding if metacommunity dynamics contribute to the persistence of complex spatial food webs subject to colonization-extinction dynamics. We study persistence as a measure of stability of communities within discrete patches, and ask how do species diversity, connectance, and topology influence it in spatially structured food webs. ...
Grami Boutheina - - 2011
This study is the first assessment of the quantitative impact of parasitic chytrids on a planktonic food web. We used a carbon-based food web model of Lake Pavin (Massif Central, France) to investigate the effects of chytrids during the spring diatom bloom by developing models with and without chytrids. Linear ...
Guariento Rafael D - - 2011
Understanding the effects of predators and resources on primary producers has been a major focus of interest in ecology. Within this context, the trophic cascade concept especially concerning the pelagic zone of lakes has been the focus of the majority of these studies. However, littoral food webs could be especially ...
Smith M Alex - - 2011
The efficient and effective monitoring of individuals and populations is critically dependent on correct species identification. While this point may seem obvious, identifying the majority of the more than 100 natural enemies involved in the spruce budworm (Choristoneura fumiferana--SBW) food web remains a non-trivial endeavor. Insect parasitoids play a major ...
Meule Adrian - - 2011
Increasing evidence suggests that binge eating-related disorders could be related to addiction-like eating patterns due to the addictive potential of hyperpalatable foods. Subsequently, important implications have been derived for treatment of those disorders and even political actions. However, studies on the prevalence of food addiction are rare. Few recent studies ...
Brouard Olivier O LMGE, Laboratoire Microorganismes: Génome et Environnement, Université Blaise Pascal, UMR CNRS 6023, Aubière, - - 2011
We assessed the occurrence of algae in five species of tank-bromeliads found in contrasting environmental sites in a Neotropical, primary rainforest around the Nouragues Research Station, French Guiana. The distributions of both algal abundance and biomass were examined based on physical parameters, the morphological characteristics of bromeliad species and with ...
Amakura Yoshiaki Y Division of Pharmacognosy, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime 790-8578, Japan. Electronic address: - - 2011
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that mediates toxicological effects by binding to agonists such as dioxins. We previously reported the presence of natural dioxin-like ligands in foods. To further characterise natural ligands with dioxin-like activity, we examined the influence of 50 kinds of commercial supplement ...
Chapman Eric G - - 2010
Molecular tools that characterize the structure of complex food webs and identify trophic connectedness in the field have become widely adopted in recent years. However, characterizing the intensity of predator-prey interactions can be prone to error. Maximizing collection success of small, fast-moving predators with vacuum suction samplers has the potential ...
Mallis Rachael E - - 2010
We examined the arthropod community on eastern hemlock, Tsuga canadensis (L.) Carr, in the context of its role in providing potential prey items for hemlock-associated web-weaving spiders. Using sticky traps simulating spider webs, we evaluated what prey items are available to web-weaving spiders in eastern hemlock based on web orientation ...
Barratt Barbara I P - - 2010
Regulators are acutely aware of the need for meaningful risk assessments to support decisions on the safety of GM crops to non-target invertebrates in determining their suitability for field release. We describe a process for developing appropriate, testable risk hypotheses for invertebrates in agroecosystems that might be exposed to plants ...
Agrawal Akash Kumar - - 2010
Agni is the invariable agent in the process of Paka (digestion, transformation). Ingested food is to be digested, absorbed and assimilated, which is unavoidable for the maintenance of life, and is performed by the Agni. Different examples are available in our classics to indicate that Pitta is the same as ...
Srinivasan Mandyam V - - 2010
Scout honeybees recruit other bees to visit a newly discovered food source through the famous 'waggle dance'. Now a new study reports that other nest mates can induce the dancer to stop advertising, if they have experienced danger at that location.
Asma A A Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences Universiti Putra - - 2010
The main objective of this study was to determine the motives underlying the selection of foods between husbands and wives in an urban community. Thiscross-sectional study was carried out in Bandar Baru Bangi, Selangor, Malaysia among 150 married couples aged 20 and above, who voluntarily agreed to participate and were ...
Ekiz Bulent - - 2010
Effects of genotype on carcass measurements and meat quality were investigated by using 24 suckling kids from Turkish Saanen, Gokceada and Maltese breeds. Carcass quality characteristics of indigenous kids (Gokceada) were lower than those of dairy type (Turkish Saanen and Maltese) kids. Breed effect on ultimate meat pH, cooking loss, ...
Baynes Re - - 2010
Recent adulteration of milk products with melamine (ME) in several countries caused adverse health effects and even deaths in infants. Earlier, in 2007, contamination of pet food with ME and its related contaminants was associated with many clinical cases of canine and feline nephrotoxicity, and in some cases mortality. ME ...
Moy F M FM - - 2009
An analytical cross-sectional study was conducted in a public university in Kuala Lumpur among a random sample of 2665 undergraduates. The objective was to study the prevalence of breakfast skipping and its associated factors. Data collection was conducted via a self-administered pre-tested questionnaire. There were 43.5% male respondents, with Malays ...
Belykh Igor - - 2009
The synchronous behaviour of interacting communities is studied in this paper. Each community is described by a tritrophic food chain model, and the communities interact through a network with arbitrary topology, composed of patches and migration corridors. The analysis of the local synchronization properties (via the master stability function approach) ...
Rosenberger Nancy - - 2009
This article traces the Japanese media's response to Chinese poison pot-stickers (gyoza) in Japan's food system as they debate and guide consumer-citizens' feelings of increasing vulnerability as individuals in the global market, the nation, and families. Global food becomes a key metaphor for threats to national borders and the need ...
Ruiz-Garcia Luis - - 2009
The aim of the present paper is to review the technical and scientific state of the art of wireless sensor technologies and standards for wireless communications in the Agri-Food sector. These technologies are very promising in several fields such as environmental monitoring, precision agriculture, cold chain control or traceability. The ...
Huang Liang - - 2009
Mushroom poisoning continues to occur worldwide. We report a cluster of sudden death in two villages of the Gan County, Jiangxi Province, People's Republic of China in September 2005. Extensive investigations on the clinical presentation, epidemiological features, food and water sources have led to the identification of mushroom poisoning. Each ...
Kurnik Magdalena - - 2009
Vagal nerve stimulation, because of its involvement in the short- and long-term regulation of food intake, might become a useful tool in the treatment of obesity. However, both peripheral and central mechanisms of its action are still poorly understood. There is a strong evidence that intestinal mucosal mast cells play ...
Balmelli B - - 2006
On Sunday 1 August 2004, at noon, in a well-known supermarket (Ycua Bolaños) on the outskirts of Asunción, the capital of Paraguay, there was a violent explosion in the fast-food section. This was caused by a build-up of gases in the chimneys of the kitchen. The flames spread rapidly through ...
Steffian Amy F - - 2006
Surplus production is a hallmark of Alaska's prehistoric coastal societies. Over the millennia, foragers procured greater quantities of resources with increasing efficiency, developing economies dependent upon storage and institutionalized exchange. In the central Gulf of Alaska, notable evidence of surplus production comes from the late phase of the Kachemak tradition. ...
Peck Michael W - - 2005
There has been a substantial increase in sales of pasteurised in-pack chilled products over the last decade. It is anticipated that this trend will continue. These foods address consumer demand in being of high quality and requiring little preparation time. The microbiological safety of these foods commonly depends on a ...
Fitzgerald S W - - 1982
In Arenicola marina (L.), in vitro attachment and phagocytosis of bacteria appears to be serum-independent and thus, non-specific. Mixtures of Gram+ve and Gram-ve bacterial species (Gram+ve/-ve, of two Gram+ve (Gram+ve/+ve) and of two Gram-ve bacterial species (Gram-ve/-ve)were overlaid on coelomocyte monolayers, in order to introduce competition for cell surface 'receptors'. ...
Dean Erin - - 2012
Hospital patients undoubtedly benefit when visitors bring in home-cooked meals. Patients are more likely to be well-nourished if they can eat food they enjoy. But it can present practical difficulties. Banning such food can prevent visitors from showing they care and present nurses with a dilemma.
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