Spermatozoon ultrastructure in two monorchiid digeneans.

abstract：:Harmine is the β-carboline alkaloid with the highest concentration in the psychotropic plant decoction Ayahuasca. In rodents, classical antidepressants reverse the symptoms of depression by stimulating neuronal proliferation. It has been shown that Ayahuasca presents antidepressant effects in patients with depressive ...

journal_title：PeerJ

authors： Dakic V,Maciel RM,Drummond H,Nascimento JM,Trindade P,Rehen SK

更新日期：2016-12-06 00:00:00

abstract：:Loot boxes are items in video games that may be paid for with real-world money, but which contain randomised contents. There is a reliable correlation between loot box spending and problem gambling severity: the more money gamers spend on loot boxes, the more severe their problem gambling tends to be. However, it is u...

journal_title：PeerJ

authors： Zendle D

更新日期：2019-10-29 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：Background:Overweight (OW) is considered a risk for various metabolic diseases. However, its effects as a mechanism that alters the metabolite profiles remain unclear. The purpose of this study is to investigate the effects that OW has on the lipid and metabolite profiles in young adults. Methods:The serum metabolite ...

journal_title：PeerJ

authors： Pasanta D,Chancharunee S,Tungjai M,Kim HJ,Kothan S

更新日期：2019-06-20 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：:Irruptions of small consumer populations, driven by pulsed resources, can lead to adverse effects including the decline of indigenous species or increased disease spread. Broad-scale pest management to combat such effects benefits from forecasting of irruptions and an assessment of the optimal control conditions for m...

journal_title：PeerJ

authors： Holland EP,Binny RN,James A

更新日期：2018-12-20 00:00:00

abstract：Background:The meat quality of yellow feathered broilers is better than the quality of its production. Growth traits are important in the broiler industry. The exploration of regulation mechanisms for the skeletal muscle would help to increase the growth performance of chickens. At present, some progress has been made ...

journal_title：PeerJ

authors： Wu P,Zhang X,Zhang G,Chen F,He M,Zhang T,Wang J,Xie K,Dai G

更新日期：2020-04-15 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：:Trans-acting small interfering RNAs (ta-siRNAs) are transcribed from protein non-coding genomic TAS loci and belong to a plant-specific class of endogenous small RNAs. These siRNAs have been found to regulate gene expression in most taxa including seed plants, gymnosperms, ferns and mosses. In this study, bioinformati...

journal_title：PeerJ

authors： Morozov SY,Milyutina IA,Erokhina TN,Ozerova LV,Troitsky AV,Solovyev AG

更新日期：2018-04-16 00:00:00

abstract：:There is growing concern that some bee populations are in decline, potentially threatening pollination security in agricultural and non-agricultural landscapes. Among the numerous causes associated with this trend, nutritional stress resulting from a mismatch between bee nutritional needs and plant community provision...

journal_title：PeerJ

authors： Pamminger T,Becker R,Himmelreich S,Schneider CW,Bergtold M

更新日期：2019-02-27 00:00:00

abstract：Background:To ensure the safety of trees, two NDT (nondestructive testing) techniques, electric resistance tomography and stress wave tomography, were employed to quantitatively detect and characterize the internal decay of standing trees. Comparisons between those two techniques were done to make full use of the indiv...

journal_title：PeerJ

authors： Yue X,Wang L,Wacker JP,Zhu Z

更新日期：2019-03-05 00:00:00

abstract：:Stridulatory signals are involved in conspecific interactions between bark beetles (Coleoptera: Curculionidae, Scolytinae). In this study, we compared the qualitative profiles of acoustic signals in three species from the genus Polygraphus Er. Sympatry can be periodically observed in two of them -P. proximus and P. su...

journal_title：PeerJ

authors： Kerchev IA

更新日期：2020-01-02 00:00:00

abstract：:Accommodation resistance is a training technique that may improve strength and power gains beyond those achieved by traditional free weights. In this method, chains are either added on a free-weight bar and combined with traditional plates or added to the bar as the entire load. Purpose. The aim of the current study w...

journal_title：PeerJ

authors： Ataee J,Koozehchian MS,Kreider RB,Zuo L

更新日期：2014-06-17 00:00:00

abstract：:Seymouria is the best known of the seymouriamorphs, a group of Permo-Carboniferous reptiliomorphs with both terrestrial and aquatic taxa. The majority of research on Seymouria has focused on cranial anatomy, with few detailed descriptions or illustrations of the postcrania. We utilized neutron computed tomography (nCT...

journal_title：PeerJ

authors： Bazzana KD,Gee BM,Bevitt JJ,Reisz RR

更新日期：2020-03-10 00:00:00

abstract：:The common bottlenose dolphin, Tursiops truncatus, is widely distributed along the western coast of South America. In Ecuador, a resident population of bottlenose dolphins inhabits the inner estuarine area of the Gulf of Guayaquil located in the southwestern part of the country and is under threat from different human...

journal_title：PeerJ

authors： Bayas-Rea RLÁ,Félix F,Montufar R

更新日期：2018-04-09 00:00:00

abstract：:A strong argument can be made that the European Union has the most rigorous regulatory system for pesticides in the world, and that modern pesticide use poses fewer environmental threats than older regimes. Nevertheless, the impacts of pesticides on bees and other non-target organisms are much debated in Europe as els...

journal_title：PeerJ

authors： Goulson D,Thompson J,Croombs A

更新日期：2018-07-19 00:00:00

abstract：Background:Dinoflagellates have the potential to pose severe ecological and economic damages to aquatic ecosystems. It is therefore largely needed to understand the causes and consequences of distribution patterns of dinoflagellate communities in order to manage potential environmental problems. However, a majority of ...

journal_title：PeerJ

authors： Gao Y,Chen Y,Xiong W,Li S,Zhan A

更新日期：2019-04-09 00:00:00

abstract：Background:Pandi's mushroom-tongue salamander (Bolitoglossa pandi) is one of the threatened amphibians in South America, as well as a flagship species for the Colombian conservation agenda. This species is endemic to the Andean cloud forests of the western slope of the Cordillera Oriental of Colombia, occurring only in...

journal_title：PeerJ

authors： Angarita-Sierra T,Bonilla-Gómez MA,Sánchez DA,Acosta-Galvis AR,Medina-Ovalle H,Solano-Moreno A,Ulloa-Rengifo S,Guevara-Guevara D,Torres-Ramirez JJ,Curaca-Fierro S,Cabrera-Amaya DM,Infante-Betancour JA,Londoño-Montaño LF,Albarán

更新日期：2020-09-24 00:00:00

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：Background:Guanylurea is the main transformation product of the antidiabetic drug metformin, which is one of the most prescribed pharmaceuticals worldwide. Due to the high rate of microbial degradation of metformin in sewage treatment plants, guanylurea occurs in higher concentrations in surface waters than its parent ...

journal_title：PeerJ

authors： Jacob S,Knoll S,Huhn C,Köhler HR,Tisler S,Zwiener C,Triebskorn R

更新日期：2019-07-11 00:00:00

abstract：:The threatened status (both ecologically and legally) of Caribbean staghorn coral, Acropora cervicornis, has prompted rapidly expanding efforts in culture and restocking, although tissue loss diseases continue to affect populations. In this study, disease surveillance and histopathological characterization were used t...

journal_title：PeerJ

authors： Miller MW,Lohr KE,Cameron CM,Williams DE,Peters EC

更新日期：2014-08-28 00:00:00

abstract：:Species identification-of importance for most biological disciplines-is not always straightforward as cryptic species hamper traditional identification. Fibre-optic near-infrared spectroscopy (NIRS) is a rapid and inexpensive method of use in various applications, including the identification of species. Despite its e...

journal_title：PeerJ

authors： Kinzner MC,Wagner HC,Peskoller A,Moder K,Dowell FE,Arthofer W,Schlick-Steiner BC,Steiner FM

更新日期：2015-09-15 00:00:00

abstract：:Triple negative breast cancer (TNBC) is a belligerent carcinoma that is unresponsive to targeted receptor therapies. Development of new treatment strategies would benefit from an expanded repertoire of in vitro cell culture systems, such as those that support tridimensional growth in the presence of hydrogel scaffolds...

journal_title：PeerJ

authors： Jogalekar MP,Serrano EE

更新日期：2018-02-16 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：:Changes in behavior are often the proximate response of animals to human disturbance, with variability in tolerance levels leading some species to exhibit striking shifts in life history, fitness, and/or survival. Thus, elucidating the effects of disturbance on animal behavior, and how this varies among taxonomically ...

journal_title：PeerJ

authors： Matich P,Schalk CM

更新日期：2019-06-07 00:00:00

abstract：BACKGROUND:Self-contained tests estimate and test the association between a phenotype and mean expression level in a gene set defined a priori. Many self-contained gene set analysis methods have been developed but the performance of these methods for phenotypes that are continuous rather than discrete and with multiple...

journal_title：PeerJ

authors： Walker JA

更新日期：2016-10-11 00:00:00

abstract：:Estimating the depth of anaesthesia (DoA) in operations has always been a challenging issue due to the underlying complexity of the brain mechanisms. Electroencephalogram (EEG) signals are undoubtedly the most widely used signals for measuring DoA. In this paper, a novel EEG-based index is proposed to evaluate DoA for...

journal_title：PeerJ

authors： Liu Q,Ma L,Fan SZ,Abbod MF,Shieh JS

更新日期：2018-05-23 00:00:00

abstract：:Cell immobilization is an alternative to microencapsulation for the maintenance of cells in a liquid medium. However, artificial immobilization carriers are expensive and pose a high safety risk. Okara, a food-grade byproduct from soymilk production, is rich in prebiotics. Lactobacilli could provide health enhancing e...

journal_title：PeerJ

authors： Xiudong X,Ying W,Xiaoli L,Ying L,Jianzhong Z

更新日期：2016-11-10 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：:Afrotheria is a strongly supported clade within placental mammals, but morphological synapomorphies for the entire group have only recently come to light. Soft tissue characters represent an underutilized source of data for phylogenetic analysis, but nonetheless provide features shared by some or all members of Afroth...

journal_title：PeerJ

authors： Brocklehurst RJ,Crumpton N,Button E,Asher RJ

更新日期：2016-04-12 00:00:00