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[PMID]:29431340
[Au] Autor:Kenessaryiev UI; Yerzhanova AE; Kenessary DU; Kenessary AU
[Ti] Título:[Trends of change in demographic indices of population in the area of oil and gas deposits of the republic of Kazakhstan].
[So] Source:Gig Sanit;95(10):946-9, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:According to assured resources of hydrocarbons the Republic of Kazakhstan (RK) is among ten largest oil countries in the world, trailing only some states of the Middle East, Latin America, as well Russia and the USA. Public health state is the one of most important indices of social development, the manifestation of the economic and sanitaryhygienic welfare, as well as national defense capability and cultural potential of the state. In relation with the intensive development of oil and gas fields the problems of environmental protection and healthcare of the population in these regions occur critically. Therefore, it causes keen interest both from the side of researches and practical health care workers. Rapid development of the oil and gas industry leads to changes in a medical and demographic situation of given regions that is related both with the natural migration of the population and other migratory processes. According to data of the Ministry of Energetics and natural resources of RK, the Karachaganak oil-gas condensate deposit is considered to be the one of the largest in the world. For the next 40 years, the field is becoming the stable financial donor of the country. Currently Karachaganak field is considered to be the one of the largest investment projects in Kazakhstan. The studied oil and gas condensate field is located in the Burlin district of West Kazakhstan region, which is 140 km far from the city of Uralsk and 160 km far from the city of Orenburg. The field was discovered in 1984.
[Mh] Termos MeSH primário: Demografia/estatística & dados numéricos
Indústria de Petróleo e Gás/organização & administração
Saúde Pública
Regionalização/organização & administração
[Mh] Termos MeSH secundário: Conservação dos Recursos Naturais/métodos
Nível de Saúde
Seres Humanos
Desenvolvimento Industrial/estatística & dados numéricos
Cazaquistão/epidemiologia
Mortalidade
Campos de Petróleo e Gás
Dinâmica Populacional
Saúde Pública/métodos
Fatores Socioeconômicos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180213
[St] Status:MEDLINE


  2 / 48488 MEDLINE  
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[PMID]:29431316
[Au] Autor:Dementieva DM; Dementiev MS
[Ti] Título:[Premises to the transboundary environmental crisis in the water tract on the example of water tract of the Kuban-Manych].
[So] Source:Gig Sanit;95(9):837-41, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:As a result, of the management of the irrigation system the most part of the runoff headwaters of the river Kuban was transferred to the arid plains of the Stavropol Territory, Rostov Region and Kalmykia Gravity Water via the water tract of the Kuban-Manych. This system was assumed to be supplied by pure mountain water. In fact, 3-4 class contaminated water currently passes to the water intake of the irrigation system (Nevinnomyssky channel). There is a tendency to the further deterioration in the quality of surface waters. It was determined that in the last decades in the catchment area of the upper reaches of the Kuban (Karachaevo-Cherkessia) the population was determined to increase sharply. As a result the discharge of industrial, agricultural, domestic and recreational waste into the river significantly increased. In that in catchment areas there is practically no infrastructure of the acquisition, processing and recycling of waste for the irrigation system. Intensive recreational and transport development of mountainous areas of Karachay-Cherkessia aggravates the situation and may lead to the need for deep water purification for subsequent consumption already in the vast territories of the Central Caucasus. Due to lack of the infrastructure for the water treatment in the upper reaches of the Kuban, it can lead to the serious systemic crisis. It is proposed to start to create in the catchment areas the cost-based system of recycling waste on the base of their processing by pyrolysis.
[Mh] Termos MeSH primário: Irrigação Agrícola
Monitoramento Ambiental
Água Doce/análise
Saúde Pública
Rios
Planejamento Social
[Mh] Termos MeSH secundário: Irrigação Agrícola/métodos
Irrigação Agrícola/organização & administração
Irrigação Agrícola/normas
Monitoramento Ambiental/métodos
Monitoramento Ambiental/estatística & dados numéricos
Previsões
Seres Humanos
Dinâmica Populacional/estatística & dados numéricos
Saúde da População/estatística & dados numéricos
Saúde Pública/métodos
Saúde Pública/normas
Federação Russa/epidemiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180213
[St] Status:MEDLINE


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[PMID]:29258497
[Au] Autor:Granroth-Wilding H; Primmer C; Lindqvist M; Poutanen J; Thalmann O; Aspi J; Harmoinen J; Kojola I; Laaksonen T
[Ad] Endereço:Department of Biology, University of Turku, Turku, Finland. hanna@granroth-wilding.co.uk.
[Ti] Título:Non-invasive genetic monitoring involving citizen science enables reconstruction of current pack dynamics in a re-establishing wolf population.
[So] Source:BMC Ecol;17(1):44, 2017 Dec 19.
[Is] ISSN:1472-6785
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Carnivores are re-establishing in many human-populated areas, where their presence is often contentious. Reaching consensus on management decisions is often hampered by a dispute over the size of the local carnivore population. Understanding the reproductive dynamics and individual movements of the carnivores can provide support for management decisions, but individual-level information can be difficult to obtain from elusive, wide-ranging species. Non-invasive genetic sampling can yield such information, but makes subsequent reconstruction of population history challenging due to incomplete population coverage and error-prone data. Here, we combine a collaborative, volunteer-based sampling scheme with Bayesian pedigree reconstruction to describe the pack dynamics of an establishing grey wolf (Canis lupus) population in south-west Finland, where wolf breeding was recorded in 2006 for the first time in over a century. RESULTS: Using DNA extracted mainly from faeces collected since 2008, we identified 81 individual wolves and assigned credible full parentages to 70 of these and partial parentages to a further 9, revealing 7 breeding pairs. Individuals used a range of strategies to obtain breeding opportunities, including dispersal to established or new packs, long-distance migration and inheriting breeding roles. Gene flow occurred between all packs but inbreeding events were rare. CONCLUSIONS: These findings demonstrate that characterizing ongoing pack dynamics can provide detailed, locally-relevant insight into the ecology of contentious species such as the wolf. Involving various stakeholders in data collection makes these results more likely to be accepted as unbiased and hence reliable grounds for management decisions.
[Mh] Termos MeSH primário: Conservação dos Recursos Naturais
Fluxo Gênico
Lobos/fisiologia
[Mh] Termos MeSH secundário: Animais
Teorema de Bayes
Coleta de Dados
Feminino
Finlândia
Masculino
Linhagem
Dinâmica Populacional
Lobos/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171221
[St] Status:MEDLINE
[do] DOI:10.1186/s12898-017-0154-8


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[PMID]:29295998
[Au] Autor:Woodson CB; Schramski JR; Joye SB
[Ad] Endereço:School of Environmental, Civil, and Environmental Engineering, University of Georgia, Athens, GA, 30602, USA. bwoodson@uga.edu.
[Ti] Título:A unifying theory for top-heavy ecosystem structure in the ocean.
[So] Source:Nat Commun;9(1):23, 2018 01 02.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Size generally dictates metabolic requirements, trophic level, and consequently, ecosystem structure, where inefficient energy transfer leads to bottom-heavy ecosystem structure and biomass decreases as individual size (or trophic level) increases. However, many animals deviate from simple size-based predictions by either adopting generalist predatory behavior, or feeding lower in the trophic web than predicted from their size. Here we show that generalist predatory behavior and lower trophic feeding at large body size increase overall biomass and shift ecosystems from a bottom-heavy pyramid to a top-heavy hourglass shape, with the most biomass accounted for by the largest animals. These effects could be especially dramatic in the ocean, where primary producers are the smallest components of the ecosystem. This approach makes it possible to explore and predict, in the past and in the future, the structure of ocean ecosystems without biomass extraction and other impacts.
[Mh] Termos MeSH primário: Ecossistema
Peixes/fisiologia
Cadeia Alimentar
Modelos Biológicos
[Mh] Termos MeSH secundário: Animais
Antozoários/classificação
Antozoários/fisiologia
Biomassa
Tamanho Corporal
Comportamento Alimentar/fisiologia
Pesqueiros/estatística & dados numéricos
Pesqueiros/tendências
Peixes/classificação
Oceanos e Mares
Plâncton/classificação
Plâncton/fisiologia
Dinâmica Populacional
Comportamento Predatório/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180104
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02450-y


  5 / 48488 MEDLINE  
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[PMID]:29296020
[Au] Autor:Swenson TL; Karaoz U; Swenson JM; Bowen BP; Northen TR
[Ad] Endereço:Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, CA, 94720, USA.
[Ti] Título:Linking soil biology and chemistry in biological soil crust using isolate exometabolomics.
[So] Source:Nat Commun;9(1):19, 2018 01 02.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Metagenomic sequencing provides a window into microbial community structure and metabolic potential; however, linking these data to exogenous metabolites that microorganisms process and produce (the exometabolome) remains challenging. Previously, we observed strong exometabolite niche partitioning among bacterial isolates from biological soil crust (biocrust). Here we examine native biocrust to determine if these patterns are reproduced in the environment. Overall, most soil metabolites display the expected relationship (positive or negative correlation) with four dominant bacteria following a wetting event and across biocrust developmental stages. For metabolites that were previously found to be consumed by an isolate, 70% are negatively correlated with the abundance of the isolate's closest matching environmental relative in situ, whereas for released metabolites, 67% were positively correlated. Our results demonstrate that metabolite profiling, shotgun sequencing and exometabolomics may be successfully integrated to functionally link microbial community structure with environmental chemistry in biocrust.
[Mh] Termos MeSH primário: Bactérias/metabolismo
Ecossistema
Metabolômica/métodos
Microbiologia do Solo
Solo/química
[Mh] Termos MeSH secundário: Bactérias/classificação
Proteínas de Bactérias/genética
Proteínas de Bactérias/metabolismo
Biomassa
Metagenoma/genética
Dinâmica Populacional
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Bacterial Proteins); 0 (Soil)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180104
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02356-9


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[PMID]:28453741
[Au] Autor:Knutson AE; Giles KL; Royer TA; Elliott NC; Bradford N
[Ad] Endereço:Department of Entomology, Texas A&M AgriLife Research and Extension Center, Dallas, TX 75252 ( a-knutson@tamu.edu ).
[Ti] Título:Application of Pheromone Traps for Managing Hessian Fly (Diptera: Cecidomyiidae) in the Southern Great Plains.
[So] Source:J Econ Entomol;110(3):1052-1061, 2017 06 01.
[Is] ISSN:1938-291X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The Hessian fly, Mayetiola destructor Say, is an important pest of winter wheat in the Southern Great Plains of the United States. As larvae feed behind the leaf sheath, infestations often go undetected until crop damage is evident, and there are no remedial actions that can prevent economic loss once a field is infested. The recent discovery of the sex-attractant pheromone of the Hessian fly provides an opportunity to use pheromone traps to detect and monitor adult activity and potentially better manage this pest. Adult male Hessian fly activity was monitored during 4 yr at six locations from northcentral Oklahoma, 36° N latitude, south to central Texas, 31° N latitude. In Oklahoma, trap captures were low in the fall, no flies were captured during the winter, and the largest number of flies was captured in the spring. However, in southcentral Texas, adults were captured throughout the fall, winter, and in the spring when trap captures were again the greatest. The relationship between trap captures and density of Hessian fly larvae per tiller was investigated during the fall and spring. Although large numbers of adults (>100 per trap per day) were often captured, economic infestation of larvae rarely developed. Results identify optimum times for field sampling to determine immature Hessian fly infestations in wheat in Oklahoma and Texas.
[Mh] Termos MeSH primário: Dípteros/fisiologia
Controle de Insetos
Feromônios/farmacologia
[Mh] Termos MeSH secundário: Animais
Dípteros/crescimento & desenvolvimento
Larva/crescimento & desenvolvimento
Larva/fisiologia
Oklahoma
Dinâmica Populacional
Estações do Ano
Texas
Triticum/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Pheromones); 0 (insect attractants)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:180301
[Lr] Data última revisão:
180301
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE
[do] DOI:10.1093/jee/tox088


  7 / 48488 MEDLINE  
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[PMID]:29360863
[Au] Autor:Laufenberg JS; Clark JD; Chandler RB
[Ad] Endereço:Department of Forestry, Wildlife and Fisheries, University of Tennessee, Knoxville, Tennessee, United States of America.
[Ti] Título:Estimating population extinction thresholds with categorical classification trees for Louisiana black bears.
[So] Source:PLoS One;13(1):e0191435, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Monitoring vulnerable species is critical for their conservation. Thresholds or tipping points are commonly used to indicate when populations become vulnerable to extinction and to trigger changes in conservation actions. However, quantitative methods to determine such thresholds have not been well explored. The Louisiana black bear (Ursus americanus luteolus) was removed from the list of threatened and endangered species under the U.S. Endangered Species Act in 2016 and our objectives were to determine the most appropriate parameters and thresholds for monitoring and management action. Capture mark recapture (CMR) data from 2006 to 2012 were used to estimate population parameters and variances. We used stochastic population simulations and conditional classification trees to identify demographic rates for monitoring that would be most indicative of heighted extinction risk. We then identified thresholds that would be reliable predictors of population viability. Conditional classification trees indicated that annual apparent survival rates for adult females averaged over 5 years ([Formula: see text]) was the best predictor of population persistence. Specifically, population persistence was estimated to be ≥95% over 100 years when [Formula: see text], suggesting that this statistic can be used as threshold to trigger management intervention. Our evaluation produced monitoring protocols that reliably predicted population persistence and was cost-effective. We conclude that population projections and conditional classification trees can be valuable tools for identifying extinction thresholds used in monitoring programs.
[Mh] Termos MeSH primário: Extinção Biológica
Ursidae
[Mh] Termos MeSH secundário: Animais
Simulação por Computador
Conservação dos Recursos Naturais
Monitorização de Parâmetros Ecológicos/estatística & dados numéricos
Espécies em Perigo de Extinção
Feminino
Louisiana
Masculino
Modelos Biológicos
Modelos Estatísticos
Dinâmica Populacional/estatística & dados numéricos
Processos Estocásticos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180227
[Lr] Data última revisão:
180227
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180124
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191435


  8 / 48488 MEDLINE  
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[PMID]:27775399
[Au] Autor:Widder A; Kuehn C
[Ad] Endereço:ORCOS, Institute of Statistics and Mathematical Methods in Economics, Vienna University of Technology, Wiedner Hauptstrasse 8, A-1040 Vienna, Austria. email: andreas.widder@tuwien.ac.at.
[Ti] Título:Heterogeneous population dynamics and scaling laws near epidemic outbreaks.
[So] Source:Math Biosci Eng;13(5):1093-1118, 2016 10 01.
[Is] ISSN:1551-0018
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In this paper, we focus on the influence of heterogeneity and stochasticity of the population on the dynamical structure of a basic susceptible-infected-susceptible (SIS) model. First we prove that, upon a suitable mathematical reformulation of the basic reproduction number, the homogeneous system and the heterogeneous system exhibit a completely analogous global behaviour. Then we consider noise terms to incorporate the fluctuation effects and the random import of the disease into the population and analyse the influence of heterogeneity on warning signs for critical transitions (or tipping points). This theory shows that one may be able to anticipate whether a bifurcation point is close before it happens. We use numerical simulations of a stochastic fast-slow heterogeneous population SIS model and show various aspects of heterogeneity have crucial influences on the scaling laws that are used as early-warning signs for the homogeneous system. Thus, although the basic structural qualitative dynamical properties are the same for both systems, the quantitative features for epidemic prediction are expected to change and care has to be taken to interpret potential warning signs for disease outbreaks correctly.
[Mh] Termos MeSH primário: Doenças Transmissíveis/epidemiologia
Surtos de Doenças/estatística & dados numéricos
Epidemias/estatística & dados numéricos
Modelos Biológicos
[Mh] Termos MeSH secundário: Número Básico de Reprodução
Seres Humanos
Dinâmica Populacional
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1712
[Cu] Atualização por classe:180228
[Lr] Data última revisão:
180228
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE
[do] DOI:10.3934/mbe.2016032


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[PMID]:27775398
[Au] Autor:Tongen A; Zubillaga M; Rabinovich JE
[Ad] Endereço:Department of Mathematics and Statistics, James Madison University, Harrisonburg, VA 22807, United States. email: tongenal@jmu.edu.
[Ti] Título:A two-sex matrix population model to represent harem structure.
[So] Source:Math Biosci Eng;13(5):1077-1092, 2016 10 01.
[Is] ISSN:1551-0018
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Population dynamic models often include males in the calculation of population change, but even in those cases males have rarely been introduced to represent polygyny (harem social structure), where it is particularly important to include males in the reproductive performance of the population. In this article we develop an adaptable matrix population modeling framework for species that have a harem-like social structure under an assumption that the transitions from newborn to juvenile and juvenile to adult both take one time step. We are able to calculate not only the growth rates and stable stage distributions, but also the mathematical expressions for harem size for this model. We then provide applications of this model to two mammal species with slightly different harem behavior.
[Mh] Termos MeSH primário: Modelos Biológicos
Comportamento Sexual Animal/fisiologia
[Mh] Termos MeSH secundário: Animais
Feminino
Masculino
Mamíferos/fisiologia
Dinâmica Populacional
Reprodução
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Em] Mês de entrada:1712
[Cu] Atualização por classe:180228
[Lr] Data última revisão:
180228
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE
[do] DOI:10.3934/mbe.2016031


  10 / 48488 MEDLINE  
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[PMID]:27775382
[Au] Autor:Huang Q; Wang H
[Ad] Endereço:Department of Mathematical and Statistical Sciences, University of Alberta, Edmonton, AB, T6G 2G1, Canada. email: qihua@ualberta.ca.
[Ti] Título:A toxin-mediated size-structured population model: Finite difference approximation and well-posedness.
[So] Source:Math Biosci Eng;13(4):697-722, 2016 08 01.
[Is] ISSN:1551-0018
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The question of the effects of environmental toxins on ecological communities is of great interest from both environmental and conservational points of view. Mathematical models have been applied increasingly to predict the effects of toxins on a variety of ecological processes. Motivated by the fact that individuals with different sizes may have different sensitivities to toxins, we develop a toxin-mediated size-structured model which is given by a system of first order fully nonlinear partial differential equations (PDEs). It is very possible that this work represents the first derivation of a PDE model in the area of ecotoxicology. To solve the model, an explicit finite difference approximation to this PDE system is developed. Existence-uniqueness of the weak solution to the model is established and convergence of the finite difference approximation to this unique solution is proved. Numerical examples are provided by numerically solving the PDE model using the finite difference scheme.
[Mh] Termos MeSH primário: Ecotoxicologia/métodos
Modelos Biológicos
[Mh] Termos MeSH secundário: Animais
Tamanho Corporal
Meio Ambiente
Dinâmica Populacional
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1712
[Cu] Atualização por classe:180228
[Lr] Data última revisão:
180228
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE
[do] DOI:10.3934/mbe.2016015



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