Unravelling the ontogeny of a Devonian early gnathostome, the "acanthodian" Triazeugacanthus affinis (eastern Canada).

abstract：Background:Adnexal torsion is a gynecologic emergency that requires surgical treatment. In this study, we reviewed the surgical outcomes of women with adnexal torsion in eastern Taiwan (Hualien county, area 4,629 km2, 330,000 residents). Methods:This retrospective study included 42 women diagnosed with surgically-prov...

journal_title：PeerJ

authors： Huang C,Hong MK,Chu TY,Ding DC

更新日期：2018-12-04 00:00:00

abstract：:The epidemic of mass mortality of oak trees by Japanese oak wilt has affected secondary deciduous broadleaved forests that have been used as coppices in Japan. The dieback of oak trees formed gaps in the crown that would be expected to enhance the regeneration of shade-intolerant pioneer species. However, foraging by ...

journal_title：PeerJ

authors： Itô H

更新日期：2016-12-22 00:00:00

abstract：:A period of starvation is regarded as a sound practice in aquaculture prior to handling, transportation and harvest, to minimise impacts on welfare and ensure proper hygiene after harvest. However, documentation of welfare issues such as stress following starvation and handling in adult Atlantic salmon are lacking. Th...

journal_title：PeerJ

authors： Waagbø R,Jørgensen SM,Timmerhaus G,Breck O,Olsvik PA

更新日期：2017-04-27 00:00:00

abstract：Background:Epidemiological surveillance of HIV infection in Japan involves two technical problems for directly applying a classical backcalculation method, i.e., (i) all AIDS cases are not counted over time and (ii) people diagnosed with HIV have received antiretroviral therapy, extending the incubation period. The pre...

journal_title：PeerJ

authors： Nishiura H

更新日期：2019-01-15 00:00:00

abstract：:The genus Elatine contains ca 25 species, all of which are small, herbaceous annuals distributed in ephemeral waters on both hemispheres. However, due to a high degree of morphological variability (as a consequence of their amphibious life-style), the taxonomy of this genus remains controversial. Thus, to fill this ga...

journal_title：PeerJ

authors： Sramkó G,Molnár V A,Tóth JP,Laczkó L,Kalinka A,Horváth O,Skuza L,Lukács BA,Popiela A

更新日期：2016-12-21 00:00:00

abstract：:Cedecea neteri is a very rare human pathogen. We have isolated a strain of C. neteri SSMD04 from pickled mackerel sashimi identified using molecular and phenotypics approaches. Using the biosensor Chromobacterium violaceum CV026, we have demonstrated the presence of short chain N-acyl-homoserine lactone (AHL) type quo...

journal_title：PeerJ

authors： Tan KH,Tan JY,Yin WF,Chan KG

更新日期：2015-09-01 00:00:00

abstract：Background:Sepsis represents a significant healthcare problem worldwide and causes a high number of deaths every year but remains to be fully understood. During and after sepsis, the host immune response is complex and involves an initial excessive host inflammatory response to infection that is closely related to tiss...

journal_title：PeerJ

authors： Wan R,Li L,Xing C,Peng R,Gao L

更新日期：2019-06-17 00:00:00

abstract：:In this study, we sequenced the genome of Pandoraea pnomenusa RB38 using Pacific Biosciences RSII (PacBio) Single Molecule Real Time (SMRT) sequencing technology. A pair of cognate luxI/R homologs was identified where the luxI homolog, ppnI, was found adjacent to a luxR homolog, ppnR1. An additional orphan luxR homolo...

journal_title：PeerJ

authors： Lim YL,Ee R,How KY,Lee SK,Yong D,Tee KK,Yin WF,Chan KG

更新日期：2015-08-27 00:00:00

abstract：INTRODUCTION:Theory predicts that habitat fragmentation, by reducing population size and increasing isolation among remnant populations, can alter their genetic diversity and structure. A cascade of effects is expected: genetic drift and inbreeding after a population bottleneck, changes in biotic interactions that may ...

journal_title：PeerJ

authors： Suárez-Montes P,Chávez-Pesqueira M,Núñez-Farfán J

更新日期：2016-12-22 00:00:00

abstract：:We point out complications inherent in biodiversity inventory metrics when applied to large-scale datasets. The number of units of inventory effort (e.g., days of inventory effort) in which a species is detected saturates, such that crucial numbers of detections of rare species approach zero. Any rare errors can then ...

journal_title：PeerJ

authors： Khalighifar A,Jiménez L,Nuñez-Penichet C,Freeman B,Ingenloff K,Jiménez-García D,Peterson T

更新日期：2020-05-13 00:00:00

abstract：:The role of glial cells in pain modulation has recently gathered attention. The objective of this study was to determine healthy spinal microglia and astrocyte morphology and disposition in equine spinal cord dorsal horns using Iba-1 and GFAP/Cx-43 immunofluorescence labeling, respectively. Five adult horses without v...

journal_title：PeerJ

authors： Meneses CS,Müller HY,Herzberg DE,Uberti B,Bustamante HA,Werner MP

更新日期：2017-10-27 00:00:00

abstract：:Background. The age at which most young people are in tertiary education is also the age of peak onset for mental illness. Because mental health problems can have adverse effects on students' academic performance and welfare, institutions require guidance how they can best provide support. However, the scientific evid...

journal_title：PeerJ

authors： Reavley NJ,Ross AM,Killackey E,Jorm AF

更新日期：2013-02-26 00:00:00

abstract：:A range of diseases is associated with amyloid fibril formation. Despite different proteins being responsible for each disease, all of them share similar features including beta-sheet-rich secondary structure and fibril-like protein aggregates. A number of proteins can form amyloid-like fibrils in vitro, resembling st...

journal_title：PeerJ

authors： Šneideris T,Baranauskienė L,Cannon JG,Rutkienė R,Meškys R,Smirnovas V

更新日期：2015-09-24 00:00:00

abstract：:Climatic variables have been the main predictors employed in ecological niche modeling and species distribution modeling, although biotic interactions are known to affect species' spatial distributions via mechanisms such as predation, competition, and mutualism. Biotic interactions can affect species' responses to ab...

journal_title：PeerJ

authors： Simões MVP,Peterson AT

更新日期：2018-12-05 00:00:00

abstract：:Background. There has been a continual increase in injury rates in cricket, with hamstring strain injuries (HSIs) being the most prominent. Eccentric knee flexor weakness and bilateral asymmetries are major modifiable risk factors for future HSIs. However, there is a lack of data relating to eccentric hamstring streng...

journal_title：PeerJ

authors： Chalker WJ,Shield AJ,Opar DA,Keogh JW

更新日期：2016-02-18 00:00:00

abstract：:Science communication is seen as critical for the disciplines of ecology and conservation, where research products are often used to shape policy and decision making. Scientists are increasing their online media communication, via social media and news. Such media engagement has been thought to influence or predict tr...

journal_title：PeerJ

authors： Lamb CT,Gilbert SL,Ford AT

更新日期：2018-04-12 00:00:00

abstract：:Natural and anthropogenic changes (e.g., land use change, pollution) will alter many environmental factors in the coming years, including the amount of solar radiation reaching the earth's surface. Alterations in solar radiation exposure is likely to impact the ecologies of many living organisms, including invertebrat...

journal_title：PeerJ

authors： Villena OC,Momen B,Sullivan J,Leisnham PT

更新日期：2018-12-18 00:00:00

abstract：:Supertree methods enable the reconstruction of large phylogenies. The supertree problem can be formalized in different ways in order to cope with contradictory information in the input. Some supertree methods are based on encoding the input trees in a matrix; other methods try to find minimum cuts in some graph. Recen...

journal_title：PeerJ

authors： Fleischauer M,Böcker S

更新日期：2018-06-08 00:00:00

abstract：:Müller glia in the zebrafish retina respond to retinal damage by re-entering the cell cycle, which generates large numbers of retinal progenitors that ultimately replace the lost neurons. In this study we compared the regenerative outcomes of adult zebrafish exposed to one round of phototoxic treatment with adult zebr...

journal_title：PeerJ

authors： Ranski AH,Kramer AC,Morgan GW,Perez JL,Thummel R

更新日期：2018-09-20 00:00:00

abstract：:The aim of this study was the characterization of fatty acids, antioxidant activity, some physical properties, nutrient content, sugars, and minerals in the pulp and seeds of the date cultivar 'Medjool' (Phoenix dactylifera L.) grown in Mexico. The samples were obtained at maturity (Tamar) in the 2017 harvest season i...

journal_title：PeerJ

authors： Salomón-Torres R,Ortiz-Uribe N,Valdez-Salas B,Rosas-González N,García-González C,Chávez D,Córdova-Guerrero I,Díaz-Rubio L,Haro-Vázquez MDP,Mijangos-Montiel JL,Morales-Maza A,Mahadevan P,Krueger R

更新日期：2019-07-17 00:00:00

abstract：:Maximakinin (MK), an amphibian peptide possessing the C-terminal sequence of bradykinin (BK), is a BK B2 receptor (B2R) agonist eliciting prolonged signaling. We reinvestigated this 19-mer for species-specific pharmacologic profile, in vivo confirmation of resistance to inactivation by angiotensin converting enzyme (A...

journal_title：PeerJ

authors： Charest-Morin X,Bachelard H,Jean M,Marceau F

更新日期：2017-01-18 00:00:00

abstract：:Over the last decades several studies have identified that the directional changes in climate induced by anthropogenic emissions of greenhouse gases are affecting the ecology of desert ecosystems. In the Southwest United States, the impacts of climate change to plant abundance and distribution have already been report...

journal_title：PeerJ

authors： Albuquerque F,Benito B,Rodriguez MÁM,Gray C

更新日期：2018-09-19 00:00:00

abstract：:The recent increased integration of evolutionary theory into conservation programs has greatly improved our ability to protect endangered species. A common application of such theory links population dynamics and indices of genetic diversity, usually estimated from neutrally evolving markers. However, some studies hav...

journal_title：PeerJ

authors： Baltazar-Soares M,Bracamonte SE,Bayer T,Chain FJ,Hanel R,Harrod C,Eizaguirre C

更新日期：2016-04-11 00:00:00

abstract：Background:Using wearable inertial sensors to accurately estimate energy expenditure (EE) during an athletic training process is important. Due to the characteristics of inertial sensors, however, the positions in which they are worn can produce signals of different natures. To understand and solve this issue, this stu...

journal_title：PeerJ

authors： Ho CS,Chang CH,Lin KC,Huang CC,Hsu YJ

更新日期：2019-11-04 00:00:00

abstract：:Taphonomic deformation, the distortion of fossils as a result of geological processes, poses problems for the use of geometric morphometrics in addressing paleobiological questions. Signal from biological variation, such as ontogenetic trends and sexual dimorphism, may be lost if variation from deformation is too high...

journal_title：PeerJ

authors： Kammerer CF,Deutsch M,Lungmus JK,Angielczyk KD

更新日期：2020-10-07 00:00:00

abstract：BACKGROUND:The genotype-phenotype interactions among traits governing feeding preference are of fundamental importance to behavioral genetics and evolutionary biology. The genetic basis of behavioral traits has been explored in different taxa using different approaches. However, the complex nature of the genetic mechan...

journal_title：PeerJ

authors： Cardoso GA,Marinho MA,Monfardini RD,Espin AM,Torres TT

更新日期：2016-10-27 00:00:00

abstract：:Mass spectrometry-based proteomics facilitate disease understanding by providing protein abundance information about disease progression. For the same type of disease studies, multiple mass spectrometry datasets may be generated. Integrating multiple mass spectrometry datasets can provide valuable information that a s...

journal_title：PeerJ

authors： Ryu SY,Wendt GA

更新日期：2019-04-10 00:00:00

abstract：Background:In this study cull dairy cows from six California dairy herds were sampled seasonally over the course of a year. The objectives were to determine the prevalence of antimicrobial resistant (AMR) Salmonella spp. shed in cull cow feces, and the factors associated with fecal shedding of AMR and multidrug resista...

journal_title：PeerJ

authors： Pereira R,Williams DR,Rossitto P,Adaska J,Okello E,Champagne J,Lehenbauer TW,Li X,Chase J,Nguyen T,Pires AFA,Atwill ER,Aly SS

更新日期：2019-03-21 00:00:00

abstract：Background:Lumbar spinal stenosis (LSS) is a common cause of low back pain with degenerative spinal change in older adults. Telomeres are repetitive nucleoprotein DNA sequences of TTAGGG at the ends of chromosomes. Oxidative stress originates from an imbalance in pro-oxidant and antioxidant homeostasis that results in ...

journal_title：PeerJ

authors： Dechsupa S,Yingsakmongkol W,Limthongkul W,Singhatanadgige W,Honsawek S

更新日期：2018-08-09 00:00:00

abstract：Background:WRKY proteins play a vital role in the plants response to different stresses, growth and development. Studies of WRKY proteins have been mainly focused on model plant Arabidopsis and a few other vegetable plants. However, the systematical study of eggplant WRKY transcription factor superfamily is scarce. Me...

journal_title：PeerJ

authors： Yang Y,Liu J,Zhou X,Liu S,Zhuang Y

更新日期：2020-03-17 00:00:00