Uneven distribution of enamel in the tooth crown of a Plains Zebra (Equus quagga).

abstract：BACKGROUND:Quercus infectoria G. Olivier (Fagaceae) nutgalls have been widely employed in traditional Asian medicine for several treatments, especially wounds and skin disorders. However, the effects of this plant on wound healing have not yet been clearly elucidated. This present work was focused on utilization of Que...

journal_title：PeerJ

authors： Chokpaisarn J,Chusri S,Amnuaikit T,Udomuksorn W,Voravuthikunchai SP

更新日期：2017-07-24 00:00:00

abstract：:Sustained-release formulations of ivermectin (IVM) are useful for controlling parasitic diseases in animals. In this work, an IVM bolus made from microcrystalline cellulose (MCC), starch and low-substituted hydroxypropyl cellulose (LS-HPC) was optimized by response surface methodology. The bolus was dissolved in a cup...

journal_title：PeerJ

authors： Ruan X,Gao X,Gao Y,Peng L,Ji H,Guo D,Jiang S

更新日期：2018-07-31 00:00:00

abstract：:Soil sickness is the progressive loss of soil quality due to continuous monocropping. The bacterial populations are critical to sustaining agroecosystems, but their responses to long-term peanut monocropping have not been determined. In this study, based on a previously constructed gradient of continuous monocropped p...

journal_title：PeerJ

authors： Chen M,Liu H,Yu S,Wang M,Pan L,Chen N,Wang T,Chi X,Du B

更新日期：2020-04-28 00:00:00

abstract：:Tufted Puffin (Fratercula cirrhata) populations have experienced dramatic declines since the mid-19th century along the southern portion of the species range, leading citizen groups to petition the United States Fish and Wildlife Service (USFWS) to list the species as endangered in the contiguous US. While there remai...

journal_title：PeerJ

authors： Hart CJ,Kelly RP,Pearson SF

更新日期：2018-03-22 00:00:00

abstract：:The vibrating reed frequency meter, originally employed by Békésy and later by Wilson as a cochlear model, uses a set of tuned reeds to represent the cochlea's graded bank of resonant elements and an elastic band threaded between them to provide nearest-neighbour coupling. Here the system, constructed of 21 reeds prog...

journal_title：PeerJ

authors： Bell A,Wit HP

更新日期：2015-10-13 00:00:00

abstract：:Recently, numerous studies have observed changes in bird vocalizations-especially song-in urban habitats. These changes are often interpreted as adaptive, since they increase the active space of the signal in its environment. However, the proximate mechanisms driving cross-generational changes in song are still unknow...

journal_title：PeerJ

authors： Potvin DA,Curcio MT,Swaddle JP,MacDougall-Shackleton SA

更新日期：2016-08-16 00:00:00

abstract：:Insulin-like growth factor 2 (IGF2) and dopamine receptor 2 (DRD2) play important roles in ovarian follicular development. In this study, we analyzed tissue-specific expression of the Muscovy duck IGF2 and DRD2 genes and cloned those genes transcripts. Polymorphisms in these genes were tightly linked with egg producti...

journal_title：PeerJ

authors： Ye Q,Xu J,Gao X,Ouyang H,Luo W,Nie Q

更新日期：2017-11-23 00:00:00

abstract：:Herein, we identified the tomato SlMYB102 gene as a MYB family transcription factor of the R2R3-MYB subfamily. We additionally determined that the SlMYB102 promoter region contains photoresponsive, abiotic stress-responsive, and hormone-responsive regulatory elements, and we detected higher SlMYB102 expression in the ...

journal_title：PeerJ

authors： Wang M,Hao J,Chen X,Zhang X

更新日期：2020-10-07 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

abstract：:Biological carbon sequestration by forest ecosystems plays an important role in the net balance of greenhouse gases, acting as a carbon sink for anthropogenic CO2 emissions. Nevertheless, relatively little is known about the abiotic environmental factors (including climate) that control carbon storage in temperate and...

journal_title：PeerJ

authors： Duchesne L,Houle D,Ouimet R,Lambert MC,Logan T

更新日期：2016-03-03 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：: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:Several authors have indicated that excess body weight can modify the electromyographic (EMG) amplitude due to the accumulation of subcutaneous fat. This accumulation of adipose tissue around the muscle would affect the metabolic capacity during functional activities. On the other hand, some authors have not...

journal_title：PeerJ

authors： Mendez-Rebolledo G,Guzman-Muñoz E,Ramírez-Campillo R,Valdés-Badilla P,Cruz-Montecinos C,Morales-Verdugo J,Berral de la Rosa FJ

更新日期：2019-06-25 00:00:00

abstract：Background:The distribution and use of camphor (Cinnamomum camphora L.) trees are constrained by increasing soil salinity in south-eastern China along the Yangtze River. However, the response mechanism of this species to salinity, especially in team of photosynthesis, are unknown. Methods:Here, we analysed themorpholo...

journal_title：PeerJ

authors： Yue J,Shi D,Zhang L,Zhang Z,Fu Z,Ren Q,Zhang J

更新日期：2020-08-07 00:00:00

abstract：:The mature spermatozoa of Stephanostomum murielae and Stephanostomoides tenuis are described by transmission electron microscopy. They present several ultrastructural features previously reported in other digeneans. Their spermatozoa possess two axonemes of different length showing the 9 + '1' trepaxonematan pattern, ...

journal_title：PeerJ

authors： Bakhoum AJ,Quilichini Y,Justine JL,Bray RA,Bâ CT,Marchand B

更新日期：2015-02-12 00:00:00

abstract：:Weaning is an important event for all mammals, including young forest musk deer. However, weaning stress may cause intestinal microbiota-related disorders. Therefore, high-throughput 16S rRNA gene sequencing was applied to study the dynamic changes in intestinal microbiota during pre-weaning (10 days before weaning) a...

journal_title：PeerJ

authors： Li Y,Shi M,Zhang T,Hu X,Zhang B,Xu S,Ding J,Hu D,Liu S

更新日期：2020-04-13 00:00:00

abstract：BACKGROUND:Conserving biodiversity in tropical landscapes is a major challenge to scientists and conservationists. Current rates of deforestation, fragmentation, and land use intensification are producing variegated landscapes with undetermined values for the conservation of biological communities and ecosystem functio...

journal_title：PeerJ

authors： Costa C,Oliveira VHF,Maciel R,Beiroz W,Korasaki V,Louzada J

更新日期：2017-04-04 00:00:00

abstract：:Populations undergoing rapid climate-driven range expansion experience distinct selection regimes dominated both by increased dispersal at the leading edges and steep environmental gradients. Characterisation of traits associated with such expansions provides insight into the selection pressures and evolutionary const...

journal_title：PeerJ

authors： Taylor-Cox ED,Macgregor CJ,Corthine A,Hill JK,Hodgson JA,Saccheri IJ

更新日期：2020-11-19 00:00:00

abstract：:Environmental heterogeneity affects not only the distribution of a species but also its local abundance. High heterogeneity due to habitat alteration and fragmentation can influence the realized niche of a species, lowering habitat suitability as well as reducing local abundance. We investigate whether a relationship ...

journal_title：PeerJ

authors： Basile M,Valerio F,Balestrieri R,Posillico M,Bucci R,Altea T,De Cinti B,Matteucci G

更新日期：2016-09-08 00:00:00

abstract：Background:SHOX mutations have previously been described as causes of Léri-Weill dyschondrosteosis (LWD), Langer mesomelic dysplasia (LMD), and idiopathic short stature. The loss of X chromosome-Turner syndrome or mosaic 45,X/46,XX or 46,XY-also leads to the heterozygous loss of SHOX in patients with short stature only...

journal_title：PeerJ

authors： Capkova P,Capkova Z,Rohon P,Adamová K,Zapletalova J

更新日期：2020-11-17 00:00:00

abstract：:Protoporphyrin (PP) and biliverdin (BV) give rise to the enormous diversity in avian egg coloration. Egg color serves several ecological purposes, including post-mating signaling and camouflage. Egg camouflage represents a major character of open-nesting birds which accomplish protection of their unhatched offspring a...

journal_title：PeerJ

authors： Wiemann J,Yang TR,Sander PN,Schneider M,Engeser M,Kath-Schorr S,Müller CE,Sander PM

更新日期：2017-08-29 00:00:00

abstract：:Recently, herbal drugs and their bioactive compounds have gained popularity in the management of diabetes mellitus (DM), which has become an epidemic disease all over the world and is especially prevalent in the Kingdom of Saudi Arabia (KSA). This study aimed to investigate the antidiabetic effect of ethanolic and aqu...

journal_title：PeerJ

authors： Gad-Elkareem MAM,Abdelgadir EH,Badawy OM,Kadri A

更新日期：2019-02-18 00:00:00

abstract：BACKGROUND:Psilochilus is a poorly studied orchid genus distributed from southern Mexico to south-eastern Brazil. A taxonomic revision of this Neotropical endemic based on morphological data is presented. MATERIAL AND METHODS:Over 170 dried herbarium specimens and flowers preserved in liquid of Psilochilus were analyz...

journal_title：PeerJ

authors： Kolanowska M,Naczk AM,Jaskuła R

更新日期：2016-11-08 00:00:00

abstract：Background:Conserved nucleic acid sequences play an essential role in transcriptional regulation. The motifs/templates derived from nucleic acid sequence datasets are usually used as biomarkers to predict biochemical properties such as protein binding sites or to identify specific non-coding RNAs. In many cases, templa...

journal_title：PeerJ

authors： Peng H

更新日期：2020-04-20 00:00:00

abstract：:Temperature-dependent sex determination, or TSD, is a widespread phenomenon in reptiles. The shape of the relationship between constant incubation temperature and sex ratio defines the TSD pattern. The TSD pattern is considered a life-history parameter important for conservation because the wider the range of temperat...

journal_title：PeerJ

authors： Abreu-Grobois FA,Morales-Mérida BA,Hart CE,Guillon JM,Godfrey MH,Navarro E,Girondot M

更新日期：2020-03-04 00:00:00

abstract：Introduction:Chronic total occlusion (CTO) is common in the presence of other significantly narrowed coronary arteries. The impact of total occlusion and its association with completeness of revascularization on patients with multivessel disease undergoing coronary artery bypass graft (CABG) remains largely unknown. A...

journal_title：PeerJ

authors： Konstanty-Kalandyk J,Bartuś K,Piątek J,Kędziora A,Darocha T,Bryniarski KL,Wróżek M,Ceranowicz P,Bartuś S,Bryniarski L,Kapelak B

更新日期：2018-06-15 00:00:00

abstract：:Meniscal tears are a common cause of stifle lameness in dogs. Use of autologous synoviocytes from the affected stifle is an attractive cell source for tissue engineering replacement fibrocartilage. However, the diseased state of these cells may impede in vitro fibrocartilage formation. Synoviocytes from 12 osteoarthri...

journal_title：PeerJ

authors： Warnock JJ,Bobe G,Duesterdieck-Zellmer KF

更新日期：2014-09-30 00:00:00

abstract：:Heterodonty in Crocodylia and closely related taxa has not been defined quantitatively, as the teeth rarely have been measured. This has resulted in a range of qualitative descriptors, with little consensus on the condition of dental morphology in the clade. The purpose of this study is to present a method for the qua...

journal_title：PeerJ

authors： D'Amore DC,Harmon M,Drumheller SK,Testin JJ

更新日期：2019-02-28 00:00:00

abstract：:Much genomic-scale, especially transcriptomic, data on spider phylogeny has accumulated in the last few years. These data have recently been used to investigate the diverse architectures and the origin of spider webs, concluding that the ancestral spider spun no foraging web, that spider webs evolved de novo 10-14 tim...

journal_title：PeerJ

authors： Coddington JA,Agnarsson I,Hamilton CA,Bond JE

更新日期：2019-04-04 00:00:00

abstract：:We describe Atrimitra isolata sp. n. (Gastropoda: Mitridae), collected on the summit of seamounts (~200 m water depth) in the vicinity of Desventuradas Islands, Chile insular territory. Additionally, we provide some insight into the habitat of this new species based on underwater imagery taken with a remotely operated...

journal_title：PeerJ

authors： Sellanes J,Salisbury RA,Tapia JM,Asorey CM

更新日期：2019-12-20 00:00:00