keyword
MENU ▼
Read by QxMD icon Read
search

Temperment

keyword
https://www.readbyqxmd.com/read/28635966/testing-models-of-refugial-isolation-colonization-and-population-connectivity-in-two-species-of-montane-salamanders
#1
S M Rovito, S D Schoville
Pleistocene glaciations have profoundly affected patterns of genetic diversity within many species. Temperate alpine organisms likely experienced dramatic range shifts, given that much of their habitat was glaciated during this time. While the effects of glaciations are relatively well understood, the spatial locations of refugia and processes that gave rise to current patterns of diversity are less well known. We use a microsatellite data set to test hypotheses of population connectivity and refugial isolation in the web-toed salamanders (Hydromantes) of the Sierra Nevada...
June 21, 2017: Heredity
https://www.readbyqxmd.com/read/28634805/comparative-prevalence-of-escherichia-coli-carrying-virulence-genes-and-class-1-and-2-integrons-in-sub-tropical-and-cool-temperate-freshwater
#2
Jatinder P S Sidhu, Paul Jagals, Amy Smith, Simon Toze
Aquatic environments are now recognized secondary habitat of potentially pathogenic Escherichia coli. In this study, PCR-based analyses were used to determine the phylogenetic composition and frequency of occurrence of eight clinically significant virulence genes (VGs) in E. coli isolates from sub-tropical Brisbane and cool temperate Tasmania freshwater in Australia. In Brisbane, non-commensal E. coli isolates belonging to the B2 and D phylogenetic group were dominant (72%). A significantly higher number (P < 0...
June 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28634416/new-climatic-targets-against-global-warming-will-the-maximum-2%C3%A2-%C3%A2-c-temperature-rise-affect-estuarine-benthic-communities
#3
Daniel Crespo, Tiago Fernandes Grilo, Joana Baptista, João Pedro Coelho, Ana Isabel Lillebø, Fernanda Cássio, Isabel Fernandes, Cláudia Pascoal, Miguel Ângelo Pardal, Marina Dolbeth
The Paris Agreement signed by 195 countries in 2015 sets out a global action plan to avoid dangerous climate change by limiting global warming to remain below 2 °C. Under that premise, in situ experiments were run to test the effects of 2 °C temperature increase on the benthic communities in a seagrass bed and adjacent bare sediment, from a temperate European estuary. Temperature was artificially increased in situ and diversity and ecosystem functioning components measured after 10 and 30 days. Despite some warmness effects on the analysed components, significant impacts were not verified on macro and microfauna structure, bioturbation or in the fluxes of nutrients...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634330/increase-in-predation-risk-and-trophic-level-induced-by-nocturnal-visits-of-piscivorous-fishes-in-a-temperate-seagrass-bed
#4
Jun Shoji, Hiromichi Mitamura, Kotaro Ichikawa, Hikari Kinoshita, Nobuaki Arai
The majority of surveys on food webs of aquatic ecosystems have been conducted during the day owning to difficulties in sampling animals at night. In this study, to examine diurnal changes in predator-prey interactions in a temperate seagrass Zostera marina bed, a quantitative day/night survey of fish, the dominant animal community, coupled with acoustic telemetry of their predators, was conducted. The number of species, abundance, and biomass of piscivorous predators and mean trophic level during the night were significantly higher than those in the day in all seasons...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28633337/differences-in-below-ground-bud-bank-density-and-composition-along-a-climatic-gradient-in-the-temperate-steppe-of-northern-china
#5
Jianqiang Qian, Zhengwen Wang, Jitka Klimešová, Xiaotao Lü, Wennong Kuang, Zhimin Liu, Xingguo Han
Background and Aims: Understanding the changes in below-ground bud bank density and composition along a climatic gradient is essential for the exploration of species distribution pattern and vegetation composition in response to climatic changes. Nevertheless, investigations on bud banks along climatic gradients are still scarce. The below-ground bud bank is expected to be reduced in size in arid conditions, and costly, bud-bearing organs with long spacers would be replaced by more compact forms with buds that are better protected than those found in moist conditions...
June 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28631030/the-impact-of-impoundment-on-mercury-bioaccumulation-in-fish-downstream-from-a-newly-constructed-reservoir-wujiang-river-southwest-china
#6
Sixin Li, Lianfeng Zhou, Jianbo Chang, Zhi Yang, Juxiang Hu, Wang Hongjun
Mercury concentrations in fish were investigated downstream from a newly impounded subtropical reservoir in August 2008. After 6-7 months of reservoir impoundment, mean mercury concentration in fish from downstream is significantly increased by 1.9 times. Not only carnivorous fish but also benthic fish had significantly higher total mercury concentrations than others. No significant correlation was found between total mercury concentrations and body length or weight of 13 fish species. Compared with the pre-impoundment, total mercury in fish from downstream is significantly increased by reservoir impoundment, but the increased rate is lower than those in subarctic and temperate areas...
June 19, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28628778/effects-of-incubation-time-and-filtration-method-on-kd-of-indigenous-selenium-and-iodine-in-temperate-soils
#7
T Almahayni, E Bailey, N M J Crout, G Shaw
In this study, the effects of incubation time and the method of soil solution extraction and filtration on the empirical distribution coefficient (Kd) obtained by de-sorbing indigenous selenium (Se) and iodine (I) from arable and woodland soils under temperate conditions were investigated. Incubation time had a significant soil- and element-dependent effect on the Kd values, which tended to decrease with the incubation time. Generally, a four-week period was sufficient for the desorption Kd value to stabilise...
June 16, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28628191/abiotic-and-biotic-factors-modulate-carrion-fate-and-vertebrate-scavenging-communities
#8
Kelsey L Turner, Erin F Abernethy, L Mike Conner, Olin E Rhodes, James C Beasley
Carrion is a valuable nutrient resource used by a diversity of vertebrates across the globe. However, vertebrate scavenging ecology remains an understudied area of science, especially in regards to how biotic and abiotic factors influence scavenging community composition. Here we elucidate how fundamental biotic and abiotic factors interact to modulate the efficiency and composition of vertebrate scavengers by investigating scavenging dynamics across a large gradient in carcass sizes and habitat types representative of many temperate ecosystems, as well as between two seasons reflecting differences in invertebrate activity...
June 19, 2017: Ecology
https://www.readbyqxmd.com/read/28627504/nature-of-the-spin-glass-phase-in-dense-packings-of-ising-dipoles-with-random-anisotropy-axes
#9
Juan J Alonso, Bartolome Alles
Using tempered Monte Carlo simulations, we study the the spin-glass phase of dense packings of Ising dipoles pointing along random axes. We consider systems of dipoles (i) placed on the sites of a simple cubic lattice with lattice constant d, and (ii) placed at the center of random close packed spheres of diameter d that occupy a 64% of the volume. For both cases we find a spin-glass phase below a certain temperature T_sg . By analysing the data obtained for the overlap parameter, the associated correlation length, as well as the statistics of the overlap distributions of individual samples, we find a behavior consistent with quasi-long-range order in the spin-glass phase, similar to the one previously found in strongly diluted dipolar systems...
June 19, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28625739/changes-in-the-fine-root-proteome-of-fagus-sylvatica-l-trees-associated-with-p-deficiency-and-amelioration-of-p-deficiency
#10
Christoph-Martin Geilfus, Sebastien Christian Carpentier, Aljoša Zavišić, Andrea Polle
Phosphorus is often the least available macronutrient in soil. Lack in phosphorus has detrimental effect on growth and biomass production of European Fagus sylvatica L., a major trees species in temperate forests. In contrast to leaf tissues, few studies have examined changes in the root system and no study has ever investigated the proteomic changes affected in beech roots by a lack in available phosphate (P). Here, we studied roots of young Fagus sylvatica L. trees in their native soils from two forests sites with contrasting availability of P: one P rich and P poor soil...
June 15, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28625104/modelling-the-effect-of-immigration-on-drinking-behaviour
#11
Hong Xiang, Cheng-Cheng Zhu, Hai-Feng Huo
A drinking model with immigration is constructed. For the model with problem drinking immigration, the model admits only one problem drinking equilibrium. For the model without problem drinking immigration, the model has two equilibria, one is problem drinking-free equilibrium and the other is problem drinking equilibrium. By employing the method of Lyapunov function, stability of all kinds of equilibria is obtained. Numerical simulations are also provided to illustrate our analytical results. Our results show that alcohol immigrants increase the difficulty of the temperance work of the region...
December 2017: Journal of Biological Dynamics
https://www.readbyqxmd.com/read/28624516/pleistocene-range-shifts-refugia-and-the-origin-of-widespread-species-in-western-palaearctic-water-beetles
#12
David García-Vázquez, David T Bilton, Garth N Foster, I Ribera
Quaternary glacial cycles drove major shifts in both the extent and location of the geographical ranges of many organisms. During glacial maxima, large areas of central and northern Europe were inhospitable to temperate species, and these areas are generally assumed to have been recolonized during interglacials by range expansions from Mediterranean refugia. An alternative is that this recolonization was from non-Mediterranean refugia, in central Europe or western Asia, but data on the origin of widespread central and north European species remain fragmentary, especially for insects...
June 14, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28623883/no-consistent-effect-of-plant-species-richness-on-resistance-to-simulated-climate-change-for-above-or-below-ground-processes-in-managed-grasslands
#13
Carsten F Dormann, Lars von Riedmatten, Michael Scherer-Lorenzen
BACKGROUND: Species richness affects processes and functions in many ecosystems. Since management of temperate grasslands is directly affecting species composition and richness, it can indirectly govern how systems respond to fluctuations in environmental conditions. Our aim in this study was to investigate whether species richness in managed grasslands can buffer the effects of drought and warming manipulations and hence increase the resistance to climate change. We established 45 plots in three regions across Germany, each with three different management regimes (pasture, meadow and mown pasture)...
June 17, 2017: BMC Ecology
https://www.readbyqxmd.com/read/28621804/long-term-evolution-of-viruses-a-janus-faced-balance
#14
REVIEW
Arshan Nasir, Kyung Mo Kim, Gustavo Caetano-Anollés
The popular textbook image of viruses as noxious and selfish genetic parasites greatly underestimates the beneficial contributions of viruses to the biosphere. Given the crucial dependency of viruses to reproduce in an intracellular environment, viruses that engage in excessive killing (lysis) can drive their cellular hosts to extinction and will not survive. The lytic mode of virus propagation must, therefore, be tempered and balanced by non-lytic modes of virus latency and symbiosis. Here, we review recent bioinformatics and metagenomic studies to argue that viral endogenization and domestication may be more frequent mechanisms of virus persistence than lysis...
June 16, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/28621031/article-submission-is-the-true-obstacle-of-publishing
#15
EDITORIAL
P B Persson
Tempers flare as the chairman seeks rapid publication to meet grant deadlines, the assistant professor lacking tenure aims for the highest impact factor, whereas the postdoc is sick and tired of ever more rebuttals, and simply wants to end the seemingly endless rejection-resubmission-cycle. This article is protected by copyright. All rights reserved.
June 16, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28620087/daily-activity-of-the-housefly-musca-domestica-is-influenced-by-temperature-independent-of-3-utr-period-gene-splicing
#16
Olga Bazalova, David Dolezel
Circadian clocks orchestrate daily activity patterns and free running periods of locomotor activity under constant conditions. While the first often depends on temperature, the latter is temperature-compensated over a physiologically relevant range. Here, we explored the locomotor activity of the temperate housefly, Musca domestica Under low temperatures, activity was centered round a major and broad afternoon peak, while high temperatures resulted in activity throughout the photophase with a mild mid-day depression, which was especially pronounced in males exposed to long photoperiods...
June 15, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28619429/vitamin-d-and-multiple-sclerosis-an-update
#17
REVIEW
Charles Pierrot-Deseilligny, Jean-Claude Souberbielle
The most recent findings linking exposure to sun and vitamin D insufficiency to multiple sclerosis (MS) are reviewed. Due to insufficient sunshine and changing lifestyles, hypovitaminosis D is widespread in temperate countries. Numerous epidemiological studies have strongly suggested that sunshine and vitamin D insufficiency contributes to MS risk in these countries. Moreover, several large genetic studies in MS patients have recently stated unequivocally that diverse abnormalities involving vitamin D metabolism are related to the risk of the disease...
May 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28619288/effects-of-exogenous-leptin-on-seasonal-reproductive-responses-to-interacting-environmental-cues-in-female-siberian-hamsters
#18
Allison M Bailey, Sandra J Legan, Vicky J Meretsky, Gregory E Demas
Animals living in temperate climates respond to environmental cues that signal current and future resource availability to ensure that energy resources are available to support reproduction. Siberian hamsters (Phodopus sungorus) undergo robust gonadal regression in short, winter-like photoperiods as well as in response to mild food restriction in intermediate photoperiods. The goal of the present study was to investigate whether leptin is a relevant metabolic signal in regulating gonadal regression in response to diminishing food availability...
June 12, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28618633/numerical-study-of-the-f-model-with-domain-wall-boundaries
#19
Rick Keesman, Jules Lamers
We perform a numerical study of the F model with domain-wall boundary conditions. Various exact results are known for this particular case of the six-vertex model, including closed expressions for the partition function for any system size as well as its asymptotics and leading finite-size corrections. To complement this picture we use a full lattice multicluster algorithm to study equilibrium properties of this model for systems of moderate size, up to L=512. We compare the energy to its exactly known large-L asymptotics...
May 2017: Physical Review. E
https://www.readbyqxmd.com/read/28618258/differential-physiological-and-genetic-responses-of-five-european-scots-pine-provenances-to-induced-water-stress
#20
Ana Carvalho, Ivo Pavia, Cláudia Fernandes, Jani Pires, Carlos Correia, Eunice Bacelar, José Moutinho-Pereira, Maria João Gaspar, João Bento, Maria Emília Silva, José Luís Lousada, José Lima-Brito
Pinus sylvestris L. (Scots pine) is the conifer with widest natural distribution area. Portugal constitutes its westernmost limit of distribution. Most of the Portuguese populations were planted but two autochthonous populations were recently ascribed to 'Serra do Gerês' (NW Portugal), and seem to be well adapted to the temperate climate. However, the ongoing climate changes may compromise their survival. With this study we intend to evaluate the anatomic-physiological and genetic responses of Scots pine from five European provenances ('Gerês', 'Puebla de Lillo', 'Montes Universales', Germany and Sweden) to three water availability regimes, in order to determine which one(s) present higher resistance to drought...
June 3, 2017: Journal of Plant Physiology
keyword
keyword
35938
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"