Peer-reviewed Articles

Total of 2,024 results
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Behavioral flexibility is considered an important trait for adapting to environmental change, but it is unclear what it is, how it works, and whether it is a problem solving ability. I investigated behavioral flexibility and problem solving experimentally in great-tailed...

["Animal Behavior","Zoology"]
doi:10.7717/peerj.1975

Testosterone is overwhelmingly important in regulating erectile physiology. However, the associated molecular mechanisms are poorly understood. The purpose of this study was to explore the effects and mechanisms of testosterone in erectile dysfunction (ED) in castrated...

["Andrology","Diabetes and Endocrinology","Urology"]
doi:10.7717/peerj.2000
2 downloads
3 views

Histopathology tissue archives can be an important source of specimens for retrospective studies, as these include samples covering a large number of diseases. In veterinary medicine, archives also contain samples from a large variety of species and may represent...

["Molecular Biology","Veterinary Medicine","Pathology"]
doi:10.7717/peerj.1996
1 download
1 view

We have collected computed barrier heights and reaction energies (and associated model structures) for five enzymes from studies published by Himo and co-workers. Using this data, obtained at the B3LYP/6- 311+G(2d,2p)[LANL2DZ]//B3LYP/6-31G(d,p) level of theory,...

["Biophysics","Computational Biology"]
doi:10.7717/peerj.1994

Habitat structure influences the diversity and distribution of organisms, potentially affecting their response to disturbances by either affecting their ‘susceptibility’ or through the provision of resources that can mitigate impacts of disturbances. Chemical disturbances...

["Biodiversity","Ecology","Environmental Sciences","Marine Biology","Toxicology"]
doi:10.7717/peerj.1985

Backgrounds: The recently proposed recircumscription of the genus Atraphaxis (incl. Atraphaxis section Ovczinnikovia O.V. Yurtseva ex. S. Tavakkoli and Polygonum sect. Spinescentia Boissier (=A. sect. Polygonoides S. Tavakkoli, Kaz. Osaloo & Mozaff.) makes this...

["Biodiversity","Evolutionary Studies","Molecular Biology","Plant Science","Taxonomy"]
doi:10.7717/peerj.1977

Background. Emerging researches revealed the essential role of mitochondria in regulating stem/progenitor cell differentiation of neural progenitor cells, mesenchymal stem cells and other stem cells through reactive oxygen species (ROS), Notch or other signaling...

["Cell Biology","Developmental Biology","Dermatology","Pharmacology"]
doi:10.7717/peerj.1821
17 downloads
116 views

Sex-role reversal, in which males care for offspring, can occur when mate competition is stronger between females than males. Secondary sex traits and mate attracting displays in sex-role-reversed species are usually more pronounced in females than in males. The...

["Ecology","Zoology"]
doi:10.7717/peerj.1989
22 downloads
151 views

Grasping is one of a few adaptive mechanisms that, in conjunction with clinging, hooking, arm swinging, adhering, and flying, allowed for incursion into the arboreal eco-space. Little research has been done that addresses grasping as an enhanced manual ability...

["Biodiversity","Zoology","Anatomy and Physiology"]
doi:10.7717/peerj.1978
12 downloads
90 views

Background. With 214 million cases and 438,000 deaths in 2015, malaria remains one of the deadliest infectious diseases in tropical countries. Several species of the protozoan Plasmodium cause malaria. However, almost all the fatalities are due to Plasmodium falciparum,...

["Parasitology","Global Health","Immunology","Infectious Diseases"]
doi:10.7717/peerj.1965
9 downloads
109 views

The coast of northern Chile has been sparsely studied in regards to its invertebrate fauna, with just a few works reviewing the distribution of local mollusks. This work presents a survey of the shallow water heterobranch sea slugs currently occurring around the...

["Biodiversity","Conservation Biology","Marine Biology","Taxonomy","Zoology"]
doi:10.7717/peerj.1963
16 downloads
129 views

Geosmithia morbida is a filamentous ascomycete that causes thousand cankers disease in the eastern black walnut tree. This pathogen is commonly found in the western U.S.; however, recently the disease was also detected in several eastern states where the black...

["Genomics","Mycology"]
doi:10.7717/peerj.1952
13 downloads
101 views

The Gidran is a native Hungarian horse breed that has approached extinction several times. Phylogenetic analysis of two mitochondrial markers (D-loop and cytochrome-b) was performed to determine the genetic characterization of the Gidran for the first time as well...

["Biodiversity","Conservation Biology","Genetics","Veterinary Medicine","Zoology"]
doi:10.7717/peerj.1894
547 downloads
2,432 views

The early evolution of archosauromorphs during the Permo-Triassic constitutes an excellent empirical case study to shed light on evolutionary radiations in deep time and the timing and processes of recovery of terrestrial faunas after a mass extinction. However,...

["Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.1778
76 downloads
383 views

Indigenous beers (chicha) are part of the indigenous culture in Ecuador. The fermentation process of these beers probably relies on microorganisms from fermented substrates, environment and human microbiota. We analyzed the microbiota of artisanal beers (including...

["Anthropology","Food Science and Technology","Microbiology","Infectious Diseases"]
doi:10.7717/peerj.1962

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