A six-year grazing exclusion changed plant species diversity of a Stipa breviflora desert steppe community, northern China.

abstract：:Advances in sequencing techniques have led to exponential growth in biological data, demanding the development of large-scale bioinformatics experiments. Because these experiments are computation- and data-intensive, they require high-performance computing techniques and can benefit from specialized technologies such ...

journal_title：PeerJ

authors： Mondelli ML,Magalhães T,Loss G,Wilde M,Foster I,Mattoso M,Katz D,Barbosa H,de Vasconcelos ATR,Ocaña K,Gadelha LMR Jr

更新日期：2018-08-29 00:00:00

abstract：BACKGROUND:Several recent studies have shown that total scores on depressive symptom measures in a general population approximate an exponential pattern except for the lower end of the distribution. Furthermore, we confirmed that the exponential pattern is present for the individual item responses on the Center for Epi...

journal_title：PeerJ

authors： Tomitaka S,Kawasaki Y,Ide K,Akutagawa M,Yamada H,Yutaka O,Furukawa TA

更新日期：2017-02-09 00:00:00

abstract：:Species traits may provide a short-cut to predicting generalities in species turnover in response to environmental change, particularly for poorly known taxa. We ask if morphological traits of assemblages respond predictably to macrohabitats across a large scale. Ant assemblages were collected at nine paired pasture a...

journal_title：PeerJ

authors： Yates ML,Andrew NR,Binns M,Gibb H

更新日期：2014-03-04 00:00:00

abstract：:Background. India accounts for 24% to all under-five mortality in the world. Residence in rural area, poverty and low levels of mother's education are known confounders of under-five mortality. Since two-thirds of India's population lives in rural areas, mothers employed in agriculture present a particularly vulnerabl...

journal_title：PeerJ

authors： Singh R,Tripathi V

更新日期：2015-01-08 00:00:00

abstract：:Circular rep-encoding ssDNA (CRESS-DNA) viruses are common constituents of invertebrate viral consortia. Despite their ubiquity and sequence diversity, the effects of CRESS-DNA viruses on invertebrate biology and ecology remain largely unknown. This study assessed the relationship between the transcriptional profile o...

journal_title：PeerJ

authors： Bistolas KSI,Rudstam LG,Hewson I

更新日期：2017-09-26 00:00:00

abstract：:Insect pollinators provide an essential ecosystem service by transferring pollen to crops and native vegetation. The extent to which pollinator communities vary both spatially and temporally has important implications for ecology, conservation and agricultural production. However, understanding the complex interaction...

journal_title：PeerJ

authors： Willcox BK,Robson AJ,Howlett BG,Rader R

更新日期：2018-10-19 00:00:00

abstract：:Pathogens invading the mammary gland are recognized through a range of pattern recognition receptors (PRRs), residing on the plasma membrane of mammary epithelial cells. Toll-like receptor 2 (TLR2) signalling is responsible for recognition of Gram-positive bacteria, which are the most common mastitis-causing pathogens...

journal_title：PeerJ

authors： Ogorevc J,Simčič M,Zorc M,Škrjanc M,Dovč P

更新日期：2019-07-31 00:00:00

abstract：:In this paper, we propose a method for automatically detecting the times during which game players exhibit specific behavior, such as when players commonly show excitement, concentration, immersion, and surprise. The proposed method detects such outlying behavior based on the game players' characteristics. These chara...

journal_title：PeerJ

authors： Kim YB,Kang SJ,Lee SH,Jung JY,Kam HR,Lee J,Kim YS,Lee J,Kim CH

更新日期：2015-12-10 00:00:00

abstract：:Body condition is an important determinant of health, and its evaluation has practical applications for the conservation and management of mammals. We developed a noninvasive method that uses photographs to assess the body condition of free-ranging brown bears (Ursus arctos) in the Shiretoko Peninsula, Hokkaido, Japan...

journal_title：PeerJ

authors： Shirane Y,Mori F,Yamanaka M,Nakanishi M,Ishinazaka T,Mano T,Jimbo M,Sashika M,Tsubota T,Shimozuru M

更新日期：2020-09-18 00:00:00

abstract：:Objectives. We wished to determine test re-test reliability and construct validity of the star-track test of manual dexterity. Design. Test re-test reliability was examined in a controlled study. Construct validity was tested in a blinded randomized crossover study. Setting. The study was performed at a university hos...

journal_title：PeerJ

authors： Kildebro N,Amirian I,Gögenur I,Rosenberg J

更新日期：2015-04-23 00:00:00

abstract：:Background. The gram-negative Neisseria is associated with two of the most potent human epidemic diseases: meningococcal meningitis and gonorrhoea. In both cases, disease is caused by bacteria colonizing human mucosal membrane surfaces. Overall, the genus shows great diversity and genetic variation mainly due to its a...

journal_title：PeerJ

authors： Zheng W,Mutha NV,Heydari H,Dutta A,Siow CC,Jakubovics NS,Wee WY,Tan SY,Ang MY,Wong GJ,Choo SW

更新日期：2016-03-17 00:00:00

abstract：Background:Introduced predators at seabird colonies and parasites may have lethal and/or sub-lethal consequences for bird populations. We assessed the potential sub-lethal negative effects of these stressors in a native seabird listed as vulnerable in its south-eastern pacific distribution. This study was conducted in ...

journal_title：PeerJ

authors： Luna N,Varela AI,Luna-Jorquera G,Brokordt K

更新日期：2020-07-08 00:00:00

abstract：:Motor unit synchronization is the tendency of motor neurons and their associated muscle fibers to discharge near-simultaneously. It has been theorized as a control mechanism for force generation by common excitatory inputs to these motor neurons. Magnitude of synchronization is calculated from peaks in cross-correlati...

journal_title：PeerJ

authors： Tweedell AJ,Tenan MS

更新日期：2019-12-10 00:00:00

abstract：:Aerobic activity levels increase with body temperature across vertebrates. Differences in these levels, from highly active to sedentary, are reflected in their ecology and behavior. Yet, the changes in the cardiovascular system that allow for greater oxygen supply at higher temperatures, and thus greater aerobic activ...

journal_title：PeerJ

authors： Gillooly JF,Zenil-Ferguson R

更新日期：2014-04-10 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：:The core antigen of the hepatitis C virus (HCV Ag) presents an alternative marker to HCV RNA when screening patients for HCV viremia. This study sought to evaluate the utility of HCV Ag as a marker to assess active HCV infection in individuals residing in an HCV-endemic area. From 298 HCV-seropositive individuals eval...

journal_title：PeerJ

authors： Wasitthankasem R,Vichaiwattana P,Auphimai C,Siripon N,Klinfueng S,Tangkijvanich P,Vongpunsawad S,Poovorawan Y

更新日期：2017-11-06 00:00:00

abstract：Background:Dengue infection represents a global health issue of growing importance. Dengue non-structural protein 1 (NS1) plays a central role in the early detection of the disease. The most common method for NS1 detection is testing by lateral flow immunoassays (LFIAs) with varying sensitivity. In this study, we prese...

journal_title：PeerJ

authors： Tran TV,Nguyen BV,Nguyen TTP,Tran TT,Pham KG,Le QB,Do BN,Pham HN,Nguyen CV,Dinh DPH,Ha VT,Doan THT,Le HQ

更新日期：2019-09-25 00:00:00

abstract：:Methionine (Met) is an essential sulfur-containing amino acid in animals. Cereal and legume crops with limiting levels of Met represent the major food and feed sources for animals. In plants, cystathionine gamma-synthase (CGS), methionine methyltransferase (MMT) and homocysteine methyltransferase (HMT) are committing ...

journal_title：PeerJ

authors： Zhao M,Wang W,Wei L,Chen P,Yuan F,Wang Z,Ying X

更新日期：2018-12-04 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：:Staurozoan classification is highly subjective, based on phylogeny-free inferences, and suborders, families, and genera are commonly defined by homoplasies. Additionally, many characters used in the taxonomy of the group have ontogenetic and intraspecific variation, and demand new and consistent assessments to establi...

journal_title：PeerJ

authors： Miranda LS,Hirano YM,Mills CE,Falconer A,Fenwick D,Marques AC,Collins AG

更新日期：2016-05-05 00:00:00

abstract：:It is assumed that the sequencing of ribosomes better reflects the active microbial community than the sequencing of the ribosomal RNA encoding genes. Yet, many studies exploring microbial communities in various environments, ranging from the human gut to deep oceans, questioned the validity of this paradigm due to th...

journal_title：PeerJ

authors： Šťovíček A,Cohen-Chalamish S,Gillor O

更新日期：2019-10-25 00:00:00

abstract：:Five tropical seaweeds, Kappaphycus alvarezii (Doty) Doty ex P.C. Silva, Padina australis Hauck, Sargassum binderi Sonder ex J. Agardh (syn. S. aquifolium (Turner) C. Agardh), Sargassum siliquosum J. Agardh and Turbinaria conoides (J. Agardh) Kützing, were incubated in seawater of pH 8.0, 7.8 (ambient), 7.6, 7.4 and 7...

journal_title：PeerJ

authors： Mithoo-Singh PK,Keng FS,Phang SM,Leedham Elvidge EC,Sturges WT,Malin G,Abd Rahman N

更新日期：2017-01-25 00:00:00

abstract：Background:Many fish taxa produce sound in voluntary and in disturbance contexts but information on the full acoustic repertoire is lacking for most species. Yet, this knowledge is critical to enable monitoring fish populations in nature through acoustic monitoring. Methods:In this study we characterized the sounds em...

journal_title：PeerJ

authors： Pereira BP,Vieira M,Pousão-Ferreira P,Candeias-Mendes A,Barata M,Fonseca PJ,Amorim MCP

更新日期：2020-02-24 00:00:00

abstract：BACKGROUND:Recent climatic history has strongly impacted plant populations, but little is known about its effect on microbes. Alders, which host few and specific symbionts, have high genetic diversity in glacial refugia. Here, we tested the prediction that communities of root symbionts survived in refugia with their ho...

journal_title：PeerJ

authors： Roy M,Pozzi AC,Gareil R,Nagati M,Manzi S,Nouioui I,Sharikadze N,Jargeat P,Gryta H,Moreau PA,Fernandez MP,Gardes M

更新日期：2017-07-18 00:00:00

abstract：:N6-methyladenosine (m6A) modifications can be found in eukaryotic messenger RNA (mRNA), long non-coding RNA (lncRNA), and microRNA (miRNA). Several studies have demonstrated a close relationship between m6A modifications and cancer cells. Methyltransferase-like enzyme 3 (METTL3) and methyltransferase-like enzyme 14 (M...

journal_title：PeerJ

authors： Tao Z,Zhao Y,Chen X

更新日期：2020-07-22 00:00:00

abstract：:Preserved labile tissues (e.g., skin, muscle) in the fossil record of terrestrial vertebrates are increasingly becoming recognized as an important source of biological and taphonomic information. Here, we combine a variety of synchrotron radiation techniques with scanning electron and optical microscopy to elucidate t...

journal_title：PeerJ

authors： Barbi M,Bell PR,Fanti F,Dynes JJ,Kolaceke A,Buttigieg J,Coulson IM,Currie PJ

更新日期：2019-10-16 00:00:00

abstract：:Background. Pollinators, which provide the agriculturally and ecologically essential service of pollination, are under threat at a global scale. Habitat loss and homogenisation, pesticides, parasites and pathogens, invasive species, and climate change have been identified as past and current threats to pollinators. Ac...

journal_title：PeerJ

authors： Brown MJ,Dicks LV,Paxton RJ,Baldock KC,Barron AB,Chauzat MP,Freitas BM,Goulson D,Jepsen S,Kremen C,Li J,Neumann P,Pattemore DE,Potts SG,Schweiger O,Seymour CL,Stout JC

更新日期：2016-08-09 00:00:00

abstract：:The study investigates the solution of the multicollinearity between certain body measurements of Romanov lambs and prediction of the body weight of Romanov lambs using the thus calculated factor analysis scores and a multiple regression model. For this purpose, the body measurements (wither height (WH), croup height ...

journal_title：PeerJ

authors： Tahtali Y

更新日期：2019-08-01 00:00:00

abstract：:Osteogenesis imperfecta (OI) is a genetic disorder that is usually caused by disturbed production of collagen type I. Depending on its severity in the patient, this disorder may create difficulties and challenges for the dental practitioner. The goal of this article is to provide guidelines based on scientific evidenc...

journal_title：PeerJ

authors： Rousseau M,Retrouvey JM,Members of the Brittle Bone Disease Consortium.

更新日期：2018-08-17 00:00:00

abstract：:Local ancestry estimation infers the regional ancestral origin of chromosomal segments in admixed populations using reference populations and a variety of statistical models. Integrating local ancestry into complex trait genetics has the potential to increase detection of genetic associations and improve genetic predi...

journal_title：PeerJ

authors： Schubert R,Andaleon A,Wheeler HE

更新日期：2020-10-02 00:00:00