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27 downloads
111 views

Protein chemical shifts are routinely used to augment molecular mechanics force fields in protein structure simulations, with weights of the chemical shift restraints determined empirically. These weights, however, might not be an optimal descriptor of a given...

["Biochemistry","Bioinformatics","Computational Biology","Computational Science"]
doi:10.7717/peerj.861
25 downloads
114 views

The current study highlights some knowledge on the diversity and structure of insect communities and trophic groups living in Sabkha Djendli (semi-arid area of Northeastern Algeria). The entomofauna was monthly sampled from March to November 2006 using pitfall...

["Biodiversity","Ecology","Ecosystem Science","Entomology","Zoology"]
doi:10.7717/peerj.860
25 downloads
60 views

Obesity is a major public health concern. This condition results from a constant and complex interplay between predisposing genes and environmental stimuli. Current attempts to manage obesity have been moderately effective and a better understanding of the etiology...

["Genetics","Diabetes and Endocrinology"]
doi:10.7717/peerj.856
20 downloads
44 views

In biological research the analysis of gene expression levels in cells and tissues can be a powerful tool to gain insights into biological processes. For this, quantitative RT-PCR (RT-qPCR) is a popular method that often involve the use of constitutively expressed...

["Developmental Biology","Environmental Sciences","Molecular Biology","Toxicology"]
doi:10.7717/peerj.855
568 downloads
1,086 views

The causes of bee declines remain hotly debated, particularly the contribution of neonicotinoid insecticides. In 2013 the UK’s Food & Environment Research Agency made public a study of the impacts of exposure of bumblebee colonies to neonicotinoids. The study concluded...

["Agricultural Science","Conservation Biology","Ecology","Entomology"]
doi:10.7717/peerj.854
25 downloads
150 views

Identification of personally familiar faces is highly efficient across various viewing conditions. While the presence of robust facial representations stored in memory is considered to aid this process, the mechanisms underlying invariant identification remain...

["Neuroscience","Cognitive Disorders","Psychiatry and Psychology"]
doi:10.7717/peerj.850
22 downloads
132 views

Insects have been used as an exemplary model in studying longevity, from extrinsic mortality pressures to intrinsic senescence. In the highly eusocial insects, great degrees of variation in lifespan exist between morphological castes in relation to extreme divisions...

["Animal Behavior","Ecology","Entomology","Evolutionary Studies","Zoology"]
doi:10.7717/peerj.848
37 downloads
140 views

The mandibles of caridean shrimps have been widely studied in the taxonomy and functional biology of the group. Within the Palaemonoidea the mandibles reach a high level of structural diversity reflecting the diverse lifestyles within the superfamily. However,...

["Biodiversity","Marine Biology","Taxonomy","Zoology"]
doi:10.7717/peerj.846
71 downloads
233 views

A distinguishing characteristic of genes that code for the major histocompatibility complex (MHC) is that alleles often share more similarity between, rather than within species. There are two likely mechanisms that can explain this pattern: convergent evolution...

["Evolutionary Studies","Genetics","Molecular Biology","Zoology","Immunology"]
doi:10.7717/peerj.853
29 downloads
86 views

The HITECH Act signed into law in 2009 requires hospitals to provide patients with electronic access to their health information through an electronic personal health record (ePHR) in order to receive Medicare/Medicaid incentive payments. Little is known about...

["HIV","Nursing","Human\u2013Computer Interaction"]
doi:10.7717/peerj.852
48 downloads
166 views

Aboveground production in terrestrial plant communities is commonly expressed in amount of carbon, or biomass, per unit surface. Alternatively, expressing production per unit volume allows the comparison of communities by their fundamental capacities in packing...

["Biodiversity","Ecology","Ecosystem Science","Plant Science"]
doi:10.7717/peerj.849
42 downloads
47 views

Effective monitoring, prevention and impact mitigation of nonindigenous aquatic species relies upon the ability to predict dispersal pathways and receiving habitats with the greatest risk of establishment. To examine mechanisms affecting species establishment within...

["Conservation Biology","Ecology","Ecosystem Science","Environmental Sciences","Coupled Natural and Human Systems"]
doi:10.7717/peerj.845
39 downloads
78 views

We documented significantly increasing trends in atmospheric loading of ammonium (NH4) and nitrate/nitrite (NO2/3) and decreasing trends in total phosphorus (P) and sulfate (SO4) to Flathead Lake, Montana, from 1985 to 2004. Atmospheric loading of NO2/3 and NH4...

["Ecology","Environmental Sciences"]
doi:10.7717/peerj.841
55 downloads
194 views

Foraging honey bees (Apis mellifera L.) can routinely travel as far as several kilometers from their hive in the process of collecting nectar and pollen from floral patches within the surrounding landscape. Since the availability of floral resources at the landscape...

["Agricultural Science","Ecology","Entomology","Coupled Natural and Human Systems"]
doi:10.7717/peerj.838
67 downloads
200 views

Primate facial expressions are widely accepted as underpinned by reflexive emotional processes and not under voluntary control. In contrast, other modes of primate communication, especially gestures, are widely accepted as underpinned by intentional, goal-driven...

["Animal Behavior"]
doi:10.7717/peerj.827

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