Systematics of stalked jellyfishes (Cnidaria: Staurozoa).

abstract：:As the most widely distributed snake in Eurasia, the adder (Vipera berus) has been extensively investigated in Europe but poorly understood in Asia. The Southern Altay Mountains represent the adder's southern distribution limit in Central Asia, whereas its population status has never been assessed. We conducted, for t...

journal_title：PeerJ

authors： Cui S,Luo X,Chen D,Sun J,Chu H,Li C,Jiang Z

更新日期：2016-08-16 00:00:00

abstract：:In contrast to reports of wild primates, studies of captive primates' flexibility often reveal conservatism: individuals are unable to switch to new and more efficient strategies when task demands change. We propose that such conservatism might be a result of task design and hypothesize that conservatism might be link...

journal_title：PeerJ

authors： Jacobson SL,Hopper LM

更新日期：2019-01-08 00:00:00

abstract：:In this paper, we map the distribution of scale-rayed wrasse Acantholabrus palloni in eastern Skagerrak based on a combination of verified and personally communicated angling records. Long thought to be occasional vagrants outside its known range in the eastern Atlantic Ocean and Mediterranean Sea, we ask if this rare...

journal_title：PeerJ

authors： Näslund J,Lundgren M

更新日期：2018-11-06 00:00:00

abstract：:Relative gene expression data obtained from quantitative RT-PCR (RT-qPCR) experiments are dependent on appropriate normalization to represent true values. It is common to use constitutively expressed endogenous reference genes (RGs) for normalization, but for this strategy to be valid the RGs must be stably expressed ...

journal_title：PeerJ

authors： Ramhøj L,Axelstad M,Svingen T

更新日期：2019-06-26 00:00:00

abstract：:The combination of different approaches has successfully delimited new species within many Neotropical species complexes traditionally classified as a single nominal organism. Recent studies have shown that the Amazonian endemic genus Amazophrynella, currently composed of 12 small-sized species, could harbor several a...

journal_title：PeerJ

authors： Mângia S,Koroiva R,Santana DJ

更新日期：2020-09-18 00:00:00

abstract：Background:Experiencing an adequate amount of cold temperatures over winter is necessary for many temperate tree species to break dormancy and flower in spring. Thus, changes in winter and spring temperatures associated with climate change may influence when trees break dormancy and flower in the future. There have bee...

journal_title：PeerJ

authors： Prevéy JS,Harrington CA

更新日期：2018-09-25 00:00:00

abstract：:Although anthophilous Coleoptera are regarded to be unspecialised flower-visiting insects, monkey beetles (Scarabaeidae: Hopliini) represent one of the most important groups of pollinating insects in South Africa's floristic hotspot of the Greater Cape Region. South African monkey beetles are known to feed on floral t...

journal_title：PeerJ

authors： Karolyi F,Hansal T,Krenn HW,Colville JF

更新日期：2016-01-21 00:00:00

abstract：:While there have been increasing numbers of reports of human-wolf conflict in China during recent years, little is known about the nature of this conflict. In this study, we used questionnaires and semi-structured interviews to investigate local villagers' perceptions of wolves in Jiuzhaigou County, western China. We ...

journal_title：PeerJ

authors： Xu Y,Yang B,Dou L

更新日期：2015-06-09 00:00:00

abstract：Background:The independent effects of hypohydration and hyperthermia on cognition and mood is unclear since the two stresses often confound each other. Further, it is unknown if obese individuals have the same impairments during hyperthermia and hypohydration that is often observed in non-obese individuals. Methods:Th...

journal_title：PeerJ

authors： Caldwell AR,Burchfield J,Moyen NE,Tucker MA,Butts CL,Elbin RJ,Ganio MS

更新日期：2018-08-16 00:00:00

abstract：Background:Hepatitis B infection is one of the most severe hepatic diseases in China. Thus, understanding the genetic pathogenesis of hepatitis B virus (HBV)-infected individuals is important. Although no consistent result is obtained in different populations, HBV treatment effect is reportedly associated with the IL28...

journal_title：PeerJ

authors： Song Y,Shen Y,Xia X,Zhang AM

更新日期：2017-12-19 00:00:00

abstract：:Urmia Lake, the largest natural habitat of the brine shrimp Artemia urmiana, has progressively desiccated over the last two decades, resulting in a loss of 80% of its surface area and producing thousands of hectares of arid salty land. This ecological crisis has seriously affected the lake's native biodiversity. Artem...

journal_title：PeerJ

authors： Asem A,Eimanifar A,van Stappen G,Sun SC

更新日期：2019-07-02 00:00:00

abstract：:The use of small unoccupied aircraft systems (UAS) for ecological studies and wildlife population assessments is increasing. These methods can provide significant benefits in terms of costs and reductions in human risk, but little is known if UAS-based approaches cause disturbance of animals during operations. To addr...

journal_title：PeerJ

authors： Arona L,Dale J,Heaslip SG,Hammill MO,Johnston DW

更新日期：2018-03-19 00:00:00

abstract：Introduction:Knowledge Translation (KT) is expected to be a critical learning outcome of a Continuing Professional Development (CPD) program. It continues to serve as an area of interest among educators and healthcare providers due to its importance to evidence-based practice. This study endeavored to develop a valid a...

journal_title：PeerJ

authors： Ong IL,Diño MJS,Calimag MMP,Hidalgo FA

更新日期：2018-08-13 00:00:00

abstract：BACKGROUND:Antimicrobial peptides (AMPs) are of great potential as novel antibiotics for the treatment of broad spectrum of pathogenic microorganisms including resistant bacteria. In this study, the mechanisms of action and the therapeutic efficacy of the hybrid peptides were examined. METHODS:TEM, SEM and ATP efflux ...

journal_title：PeerJ

authors： Jindal HM,Zandi K,Ong KC,Velayuthan RD,Rasid SM,Samudi Raju C,Sekaran SD

更新日期：2017-10-05 00:00:00

abstract：:Background. In recent years, there has been an explosion in the number of technical and medical diagnostic platforms being developed. This has greatly improved our ability to more accurately, and more comprehensively, explore and characterize human biological systems on the individual level. Large quantities of biomed...

journal_title：PeerJ

authors： O'Rawe JA,Fang H,Rynearson S,Robison R,Kiruluta ES,Higgins G,Eilbeck K,Reese MG,Lyon GJ

更新日期：2013-10-03 00:00:00

abstract：Purpose:This study aimed to examine differences between track and field (T&F) runners and foot-orienteers (Foot-O) in the walking and running tests in the absence of vision and hearing. We attempted to determine whether experienced foot orienteers show better ability to maintain the indicated direction compared to trac...

journal_title：PeerJ

authors： Machowska W,Cych P,Siemieński A,Migasiewicz J

更新日期：2019-09-26 00:00:00

abstract：:Bighead, silver, and grass carps are invasive in the waterways of central North America, and grass carp reproduction in tributaries of the Great Lakes has now been documented. Questions about recruitment potential motivate a need for accurate models of egg and larval dispersal. Quantitative data on swimming behaviors ...

journal_title：PeerJ

authors： George AE,Garcia T,Stahlschmidt BH,Chapman DC

更新日期：2018-11-02 00:00:00

abstract：Background:Stoichiometric relations drive powerful constraints in several fundamental ecosystem processes. However, limited studies have been conducted on the ecological stoichiometry of plants after the change of community composition induced by Stellera chamaejasme removal in alpine grassland in the Qinghai-Tibetan P...

journal_title：PeerJ

authors： Song M,Wang Y,Bao G,Wang H,Yin Y,Li X,Zhang C

更新日期：2020-06-23 00:00:00

abstract：:The enhanced ability to direct sexual reproduction may lead to improved restoration outcomes for Acropora cervicornis. Gravid fragments of A. cervicornis were maintained in a laboratory for two sequential trials in the seven days prior to natural spawning in the Florida Keys. Ten replicates of five chemicals known to ...

journal_title：PeerJ

authors： Flint M,Than JT

更新日期：2016-04-26 00:00:00

abstract：:Background. Applying quantitative morphological approaches in systematics research is a promising way to discover cryptic biological diversity. Information obtained through twenty-first century science poses new challenges to taxonomy by offering the possibility of increased objectivity in independent and automated hy...

journal_title：PeerJ

authors： Csősz S,Fisher BL

更新日期：2016-03-10 00:00:00

abstract：:The rapid development of China's textile industry (TI) has led to severe water environmental stress. Water environmental stress of China's TI mainly comes from large quantities of discharged wastewater and chemical oxygen demand (COD). The sustainable development of the TI is realized to achieve the decoupling between...

journal_title：PeerJ

authors： Li Y,Shen J,Lu L,Luo Y,Wang L,Shen M

更新日期：2018-06-29 00:00:00

abstract：:Transmissible gastroenteritis virus (TGEV), belonging to the coronaviridae family, is the key cause of the fatal diarrhea of piglets and results in many pathological processes. microRNAs (miRNAs) play a key role in the regulation of virus-induced apoptosis. During the process of apoptosis induced by TGEV infection in ...

journal_title：PeerJ

authors： Zhao X,Song X,Bai X,Fei N,Huang Y,Zhao Z,Du Q,Zhang H,Zhang L,Tong D

更新日期：2016-02-04 00:00:00

abstract：BACKGROUND:Algae encompass a wide array of photosynthetic organisms that are ubiquitously distributed in aquatic and terrestrial habitats. Algal species often bloom in aquatic ecosystems, providing a significant autochthonous carbon input to the deeper anoxic layers in stratified water bodies. In addition, various alga...

journal_title：PeerJ

authors： Morrison JM,Murphy CL,Baker K,Zamor RM,Nikolai SJ,Wilder S,Elshahed MS,Youssef NH

更新日期：2017-01-10 00:00:00

abstract：:Currently there are 21 shrimp species in the northeastern Atlantic and Mediterranean Sea which are considered to belong to the superfamily Oplophoroidea, but the larval development is unknown for most of them. The complete larval development of Systellaspis debilis (Milne-Edwards, 1881), here described and illustrated...

journal_title：PeerJ

authors： Bartilotti C,Dos Santos A

更新日期：2019-09-18 00:00:00

abstract：:Anthropogenic climate change is a significant global driver of species distribution change. Although many species have undergone range expansion at their poleward limits, data on several taxonomic groups are still lacking. A common method for studying range shifts is using species distribution models to evaluate curre...

journal_title：PeerJ

authors： Archis JN,Akcali C,Stuart BL,Kikuchi D,Chunco AJ

更新日期：2018-05-01 00:00:00

abstract：:Molt summary tables reveal the sequence and mode of flight-feather replacement and how these feathers are divided into independent replacement series. Tables for summarizing molt are relatively new, and the rules for generating them were first formally illustrated using data from a temperate passerine. However, this f...

journal_title：PeerJ

authors： Rohwer S,Rohwer VG

更新日期：2018-09-07 00:00:00

abstract：:Grazing and litter removal can alter understory structure and composition after afforestation, posing a serious threat to sustainable forest development. Enclosure is considered to be an effective measure to restore degraded forest restoration. However, little is known about the dynamics of soil nutrients and microbia...

journal_title：PeerJ

authors： Deng J,Zhou Y,Zhu W,Yin Y

更新日期：2020-03-25 00:00:00

abstract：:We developed a novel method based on the Fourier analysis of protein molecular surfaces to speed up the analysis of the vast structural data generated in the post-genomic era. This method computes the power spectrum of surfaces of the molecular electrostatic potential, whose three-dimensional coordinates have been eit...

journal_title：PeerJ

authors： Carvalho CS,Vlachakis D,Tsiliki G,Megalooikonomou V,Kossida S

更新日期：2013-10-22 00:00:00

abstract：:The currently-accepted dogma when analysing human Alu transposable elements is that 'young' Alu elements are found in low GC regions and 'old' Alus in high GC regions. The correlation between high GC regions and high gene frequency regions make this observation particularly difficult to explain. Although a number of s...

journal_title：PeerJ

authors： Hellen EH,Brookfield JF

更新日期：2013-05-21 00:00:00

abstract：Background:The need for read-based phasing arises with advances in sequencing technologies. The minimum error correction (MEC) approach is the primary trend to resolve haplotypes by reducing conflicts in a single nucleotide polymorphism-fragment matrix. However, it is frequently observed that the solution with the opti...

journal_title：PeerJ

authors： Lin YY,Wu PC,Chen PL,Oyang YJ,Chen CY

更新日期：2018-10-30 00:00:00