Peer-reviewed Articles

32 downloads
266 views

Background Working memory is critical for various cognitive processes and can be separated into two stages: short-term memory storage and manipulation processing. Although previous studies have demonstrated that increased physical activity (PA) improves working...

["Kinesiology","Ophthalmology","Psychiatry and Psychology","Public Health"]
doi:10.7717/peerj.3430
252 downloads
1,574 views

Distinguishing the difference between theropod and ornithopod footprints has proved a difficult task due to their similarities. Herein our aim was to produce a method where a skeleton could be more closely matched to actual fossilised footprints. The reconstructed...

["Paleontology"]
doi:10.7717/peerj.3427
54 downloads
263 views

The changes of protein expression that are monitored in proteomic experiments are a type of biological transformation that also involves changes in chemical composition. Accompanying the myriad molecular-level interactions that underlie any proteomic transformation,...

["Biochemistry","Mathematical Biology","Oncology"]
doi:10.7717/peerj.3421
67 downloads
613 views

Local-scale ecological information is critical as a sound basis for spatial management and conservation and as support for ongoing research in relatively unstudied areas. We conducted visual surveys of fish and benthic communities on nine reefs (3–24 km from shore)...

["Biodiversity","Conservation Biology","Ecology","Marine Biology"]
doi:10.7717/peerj.3410
30 downloads
186 views

The evolutionarily conserved Mediator complex is a critical player in regulating transcription. Comprised of approximately two dozen proteins, the Mediator integrates diverse regulatory signals through direct protein-protein interactions that, in turn, modulate...

["Cell Biology","Developmental Biology","Evolutionary Studies","Molecular Biology"]
doi:10.7717/peerj.3390
86 downloads
304 views

Gastric cancer is an aggressive cancer that is often diagnosed late. Early detection and treatment require a better understanding of the molecular pathology of the disease. The present study combined data on gene expression and regulatory levels (microRNA, methylation,...

["Bioinformatics","Genetics","Genomics","Gastroenterology and Hepatology","Oncology"]
doi:10.7717/peerj.3385
74 downloads
532 views

The morphology and affinities of newly discovered disc-shaped, soft-bodied fossils from the early Cambrian (Series 2: Stage 4, Dyeran) Carrara Formation are discussed. These specimens show some similarity to the Ordovician Discophyllum Hall, 1847; traditionally...

["Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.3312
50 downloads
404 views

Mitogen-activated protein kinases (MAPKs) are an important family of genes which play roles in vital plant processes, and they also help in coping against various kinds of environmental stresses including abiotic as well as biotic factors. The advancement of genomics...

["Bioinformatics","Computational Biology","Evolutionary Studies","Genomics","Plant Science"]
doi:10.7717/peerj.3255
67 downloads
451 views

Background Large-scale molecular evolutionary analyses of protein coding sequences requires a number of preparatory inter-related steps from finding gene families, to generating alignments and phylogenetic trees and assessing selective pressure variation. Each...

["Bioinformatics","Computational Biology"]
doi:10.7717/peerj-cs.118
563 downloads
2,029 views

Background Facial expressions convey key cues of human emotions, and may also be important for interspecies interactions. The universality hypothesis suggests that six basic emotions (anger, disgust, fear, happiness, sadness, and surprise) should be expressed by...

["Animal Behavior","Anthropology","Zoology","Psychiatry and Psychology","Public Health"]
doi:10.7717/peerj.3413
45 downloads
314 views

Long bone curvature in animal limbs has long been a subject of interest and much work has explored why long bones should be curved. However, the ‘when’ and ‘how’ of curvature development is poorly understood. It has been shown that the rat tibia fails to attain...

["Biophysics","Developmental Biology","Zoology"]
doi:10.7717/peerj.3386
148 downloads
582 views

While studying organisms living in association with the solitary tunicate Phallusia nigra (Ascidiacea, Ascidiidae) from a shallow fringing reef at Zeytouna Beach (Egyptian Red Sea), one of the collected ascidians showed peculiar perforations on its tunic. Once...

["Taxonomy","Zoology"]
doi:10.7717/peerj.3374
57 downloads
327 views

Background Synthesis of thyroid hormones and regulation of their metabolism involve free radicals that may affect redox balance in the body. Thyroid disorders causing variations in the levels of thyroid hormones may alter cellular oxidative stress. The aim of this...

["Biochemistry","Molecular Biology","Oncology","Medical Genetics","Metabolic Sciences"]
doi:10.7717/peerj.3365
68 downloads
337 views

The ethylene-insensitive3/ethylene-insensitive3-like (EIN3/EIL) proteins are a type of nuclear-localized protein with DNA-binding activity in plants. Although the EIN3/EIL gene family has been studied in several plant species, little is known about comprehensive...

["Bioinformatics","Genomics","Plant Science"]
doi:10.7717/peerj.3400
1 citation
57 downloads
276 views

Elatine L. contains ca. 25 small, herbaceous, annual species distributed in ephemeral waters in both hemispheres. All species are amphibious and characterized by a high degree of morphological variability. The importance of seed morphology in Elatine taxonomy has...

["Plant Science","Taxonomy"]
doi:10.7717/peerj.3399

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