Ultrastructural study of sperm cells in Acanthocolpidae: the case of Stephanostomum murielae and Stephanostomoides tenuis (Digenea).

abstract：Background:The table tennis serve involves complex spatial movements combined with biomechanial characteristics. Although the differences in lower-limb biomechanial characteristics to a great extent influence the translational and spinning velocity of the ball when using the different styles of table tennis serve, few ...

journal_title：PeerJ

authors： Yu C,Shao S,Baker JS,Gu Y

更新日期：2018-06-01 00:00:00

abstract：:Ceratopsids ("horned dinosaurs") are known from western North America and Asia, a distribution reflecting an inferred subaerial link between the two landmasses during the Late Cretaceous. However, this clade was previously unknown from eastern North America, presumably due to limited outcrop of the appropriate age and...

journal_title：PeerJ

authors： Farke AA,Phillips GE

更新日期：2017-05-23 00:00:00

abstract：:Current ovarian cancer treatment involves chemotherapy that has serious limitations, such as rapid clearance, unfavorable biodistribution and severe side effects. To overcome these limitations, drug delivery systems (DDS) have been developed to encapsulate chemotherapeutics for delivery to tumor cells. However, no sys...

journal_title：PeerJ

authors： Raavé R,de Vries RB,Massuger LF,van Kuppevelt TH,Daamen WF

更新日期：2015-12-10 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：:Cellulosic waste represents a significant and underutilized carbon source for the biofuel industry. Owing to the recalcitrance of crystalline cellulose to enzymatic degradation, it is necessary to design economical methods of liberating the fermentable sugars required for bioethanol production. One route towards unloc...

journal_title：PeerJ

authors： Hamberg Y,Ruimy-Israeli V,Dassa B,Barak Y,Lamed R,Cameron K,Fontes CM,Bayer EA,Fried DB

更新日期：2014-10-30 00:00:00

abstract：:The interplay between historical and contemporary processes can produce complex patterns of genetic differentiation in the marine realm. Recent mitochondrial and nuclear sequence analyses revealed cryptic speciation in the Japanese mantis shrimp Oratosquilla oratoria. Herein, we applied nuclear microsatellite markers ...

journal_title：PeerJ

authors： Cheng J,Zhang N,Sha Z

更新日期：2020-11-05 00:00:00

abstract：:Individual movement influences the spatial and social structuring of a population. Animals regularly use the same paths to move efficiently to familiar places, or to patrol and mark home ranges. We found that Australian sleepy lizards (Tiliqua rugosa), a monogamous species with stable pair-bonds, repeatedly used the s...

journal_title：PeerJ

authors： Leu ST,Jackson G,Roddick JF,Bull CM

更新日期：2016-03-22 00:00:00

abstract：Background:Forest ecosystems are considered among the largest terrestrial carbon sinks. The dynamics of forest carbon depend on where the carbon is stored and its responses to environmental factors, as well as the physiology of the trees. Thus, threatened forest regions with high biodiversity have great scientific impo...

journal_title：PeerJ

authors： González-Cásares M,Pompa-García M,Venegas-González A,Domínguez-Calleros P,Hernández-Díaz J,Carrillo-Parra A,González-Tagle M

更新日期：2019-06-11 00:00:00

abstract：Background:Alcohol-related hepatocellular carcinoma (HCC) was reported to be diagnosed at a later stage, but the mechanism was unknown. This study aimed to identify special key genes (SKGs) during alcohol-related HCC development and progression. Methods:The mRNA data of 369 HCC patients and the clinical information we...

journal_title：PeerJ

authors： Zhang X,Kang C,Li N,Liu X,Zhang J,Gao F,Dai L

更新日期：2019-02-06 00:00:00

abstract：Background:The coronavirus 19 (COVID-19) pandemic has heightened the threat to the health and lives of patients with comorbid diseases. Infection by COVID-19 is especially detrimental to patients on hemodialysis. In this study, we evaluated the clinical characteristics, laboratory findings, treatments and prognoses of ...

journal_title：PeerJ

authors： Luo Y,Li J,Liu Z,Yu H,Peng X,Cao C

更新日期：2020-11-26 00:00:00

abstract：Background:Endometriosis (EMs) is a non-malignant gynecological disease, whose pathogenesis remains to be clarified. Recent studies have found that hypoxia induces epithelial-mesenchymal transition (EMT) as well as epigenetic modification in EMs. However, the relationship between EMT and demethylation modification unde...

journal_title：PeerJ

authors： Wu J,Li X,Huang H,Xia X,Zhang M,Fang X

更新日期：2020-09-15 00:00:00

abstract：:Elucidating the molecular mechanism of helix-coil transitions of short peptides is a long-standing conundrum in physical chemistry. Although the helix-coil transitions of poly-glutamic acid (PGA) have been extensively studied, the molecular details of its unfolding process still remain unclear. We performed all-atom c...

journal_title：PeerJ

authors： Ogasawara N,Kasahara K,Iwai R,Takahashi T

更新日期：2018-05-15 00:00:00

abstract：:In the Balearic Islands, different trammel net designs have been adopted to promote fisheries sustainability and reduce discards. Here, we compare the catch performance of three trammel net designs targeting the spiny lobster Palinurus elephas in terms of biomass, species composition and revenue from commercial catche...

journal_title：PeerJ

authors： Catanese G,Hinz H,Gil MDM,Palmer M,Breen M,Mira A,Pastor E,Grau A,Campos-Candela A,Koleva E,Grau AM,Morales-Nin B

更新日期：2018-05-17 00:00:00

abstract：PURPOSE:The aim of this study was to evaluate the effects of low-volume high-intensity interval training and continuous low to moderate intensity training on quality of life, functional capacity and cardiovascular disease risk factors in cancer survivors. METHODS:Cancer survivors within 24 months post-diagnosis were r...

journal_title：PeerJ

authors： Toohey K,Pumpa KL,Arnolda L,Cooke J,Yip D,Craft PS,Semple S

更新日期：2016-10-20 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：:Due to its remote and isolated location, Antarctica is home to a unique diversity of species. The harsh conditions have shaped a primarily highly adapted endemic fauna. This includes the notothenioid family Channichthyidae. Their exceptional physiological adaptations have made this family of icefish the focus of many ...

journal_title：PeerJ

authors： Kuhn T,Zizka VMA,Münster J,Klapper R,Mattiucci S,Kochmann J,Klimpel S

更新日期：2018-05-11 00:00:00

abstract：:In functional genomics experiments, researchers often select genes to follow-up or validate from a long list of differentially expressed genes. Typically, sharp thresholds are used to bin genes into groups such as significant/non-significant or fold change above/below a cut-off value, and ad hoc criteria are also used...

journal_title：PeerJ

authors： Lazic SE

更新日期：2015-11-26 00:00:00

abstract：:Sound production is a widespread phenomenon among animals. Effective sound use for mate or species recognition requires some acoustic differentiation at an individual or species level. Several species of caudate amphibians produce underwater sounds, but information about intra- and interspecific variation in their aco...

journal_title：PeerJ

authors： Hubáček J,Šugerková M,Gvoždík L

更新日期：2019-03-28 00:00:00

abstract：:The whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) is a cryptic species complex, including members that are pests of global importance. This study presents a screening of B. tabaci species in China for infection by the primary endosymbiont, Portiera aleyrodidarum, and two secondary endosymbionts, Arsenop...

journal_title：PeerJ

authors： Tang XT,Cai L,Shen Y,Du YZ

更新日期：2018-08-29 00:00:00

abstract：:Mechanisms generating and maintaining biodiversity at regional scales may be evaluated by quantifying β-diversity along environmental gradients. Differences in assemblages result in biotic complementarities and redundancies among sites, which may be quantified through multi-dimensional approaches incorporating taxonom...

journal_title：PeerJ

authors： de Fraga R,Ferrão M,Stow AJ,Magnusson WE,Lima AP

更新日期：2018-09-24 00:00:00

abstract：:The stings of bees, wasps, and ants are something that catches the attention of anyone that experiences them. While many recent studies have focused on the pain inflicted by the stings of various stinging wasps, bees, or ants (Hymenoptera: Aculeata), little is known about how the length of the sting itself varies betw...

journal_title：PeerJ

authors： Sadler EA,Pitts JP,Wilson JS

更新日期：2018-05-02 00:00:00

abstract：Background:Type 2 diabetes mellitus (T2DM) had been reported to be associated with tendinopathy. However, the underlying mechanisms of diabetic tendinopathy still remain largely to be discovered. The purpose of this study was to develop insulin resistance (IR) model on primary human tenocytes (hTeno) culture with tumou...

journal_title：PeerJ

authors： Tan HY,Tan SL,Teo SH,Roebuck MM,Frostick SP,Kamarul T

更新日期：2020-06-08 00:00:00

abstract：Background:Reward seeking and avoidance of punishment are key motivational processes. Brain-imaging studies often use the Monetary Incentive Delay Task (MIDT) to evaluate motivational processes involved in maladaptive behavior. Although the bulk of research has been done on the MIDT reward events, little is known about...

journal_title：PeerJ

authors： Dugré JR,Dumais A,Bitar N,Potvin S

更新日期：2018-05-10 00:00:00

abstract：:Protein aggregation into highly-structured amyloid fibrils is linked to several neurodegenerative diseases. Such fibril formation by superoxide dismutase I (SOD1) is considered to be related to amyotrophic lateral sclerosis, a late-onset and fatal disorder. Despite much effort and the discovery of numerous anti-amyloi...

journal_title：PeerJ

authors： Musteikyte G,Ziaunys M,Smirnovas V

更新日期：2020-08-14 00:00:00

abstract：Background:Electrochemical signals play an important role in cell communication and behavior. Electrically charged ions transported across cell membranes maintain an electrochemical imbalance that gives rise to bioelectric signaling, called membrane potential or Vmem. Vmem plays a key role in numerous inter- and intrac...

journal_title：PeerJ

authors： Bhavsar MB,Cato G,Hauschild A,Leppik L,Costa Oliveira KM,Eischen-Loges MJ,Barker JH

更新日期：2019-02-08 00:00:00

abstract：AIM:To prospectively evaluate the effects of vitamin D3 on disease activity and quality of life in ulcerative colitis (UC) patients with hypovitaminosis D. METHODS:The study was a prospective double-blinded, randomized trial conducted at Community Regional Medical Center, Fresno, CA from 2012-2013. Patients with UC an...

journal_title：PeerJ

authors： Mathur J,Naing S,Mills P,Limsui D

更新日期：2017-08-03 00:00:00

abstract：Background and Aim:Water is an increasingly scarce resource while some crops, such as paddy rice, require large amounts of water to maintain grain production. A better understanding of rice drought adaptation and tolerance mechanisms could help to reduce this problem. There is evidence of a possible role of root-associ...

journal_title：PeerJ

authors： Andreo-Jimenez B,Vandenkoornhuyse P,Lê Van A,Heutinck A,Duhamel M,Kadam N,Jagadish K,Ruyter-Spira C,Bouwmeester H

更新日期：2019-09-11 00:00:00

abstract：:Complete chloroplast genome sequences have been very useful for understanding phylogenetic relationships in angiosperms at the family level and above, but there are currently large gaps in coverage. We report the chloroplast genome for Helwingia himalaica, the first in the distinctive family Helwingiaceae and only the...

journal_title：PeerJ

authors： Yao X,Liu YY,Tan YH,Song Y,Corlett RT

更新日期：2016-11-29 00:00:00

abstract：:Hydrozoa medusae undergo blooms and seasonal fluctuations; however the drivers of such fluctuations are unknown. To understand how medusa populations fluctuate in response to seasonal factors such as temperature, salinity, dissolved oxygen, and chlorophyll a, and to enhance our taxonomic knowledge of Hydrozoa in Galve...

journal_title：PeerJ

authors： Pruski S,Miglietta MP

更新日期：2019-10-08 00:00:00

abstract：Background:Leucojum aestivum L. is an important medicinal plant which produces Amaryllidaceae alkaloids, especially galanthamine and lycorine. Research is currently exploring the possibility of producing these alkaloids using biotechnological methods, including in vitro cultures. The biosynthesis of alkaloids may be af...

journal_title：PeerJ

authors： Ptak A,Morańska E,Skrzypek E,Warchoł M,Spina R,Laurain-Mattar D,Simlat M

更新日期：2020-03-16 00:00:00