A new p-terphenyl derivative from the insect-derived fungus Aspergillus candidus Bdf-2 and the synergistic effects of terphenyllin.

abstract：:The potential of soils to naturally suppress inherent plant pathogens is an important ecosystem function. Usually, pathogen infection assays are used for estimating the suppressive potential of soils. In natural soils, however, co-occurring pathogens might simultaneously infect plants complicating the estimation of a ...

journal_title：PeerJ

authors： Rall BC,Latz E

更新日期：2016-11-03 00:00:00

abstract：:Reliable abundance estimates for species are fundamental in ecology, fisheries, and conservation. Consequently, predictive models able to provide reliable estimates for un- or poorly-surveyed locations would prove a valuable tool for management. Based on commonly used environmental and physical predictors, we develope...

journal_title：PeerJ

authors： Sequeira AMM,Mellin C,Lozano-Montes HM,Meeuwig JJ,Vanderklift MA,Haywood MDE,Babcock RC,Caley MJ

更新日期：2018-04-17 00:00:00

abstract：Background:WRKY proteins play a vital role in the plants response to different stresses, growth and development. Studies of WRKY proteins have been mainly focused on model plant Arabidopsis and a few other vegetable plants. However, the systematical study of eggplant WRKY transcription factor superfamily is scarce. Me...

journal_title：PeerJ

authors： Yang Y,Liu J,Zhou X,Liu S,Zhuang Y

更新日期：2020-03-17 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：:Management of low-mobility or benthic fisheries is a difficult task because variation in the spatial distribution and population dynamics of the resources make the monitoring and assessment of these fisheries challenging. We assumed that environmental, spatial, and temporal factors can contribute to the variability of...

journal_title：PeerJ

authors： Murillo-Posada JC,Salas S,Velázquez-Abunader I

更新日期：2019-07-08 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:Silkworm pupae is the main by-product of the sericulture industry with an interesting nutritional profile, especially in terms of proteins. In consideration of its possible use as a food or food ingredient in Western countries, a comparative proteomic experiment has been performed to investigate the differen...

journal_title：PeerJ

authors： Lamberti C,Gai F,Cirrincione S,Giribaldi M,Purrotti M,Manfredi M,Marengo E,Sicuro B,Saviane A,Cappellozza S,Giuffrida MG,Cavallarin L

更新日期：2019-06-12 00:00:00

abstract：:Clostridium septicum produces a number of diseases in human and farm animals which, in most of the cases, are fatal without clinical intervention. Alpha toxin is an important agent and the unique lethal virulent factor produced by Clostridium septicum. This toxin is haemolytic, highly lethal and necrotizing activities...

journal_title：PeerJ

authors： Vázquez-Iglesias L,Estefanell-Ucha B,Barcia-Castro L,Páez de la Cadena M,Álvarez-Chaver P,Ayude-Vázquez D,Rodríguez-Berrocal FJ

更新日期：2017-06-22 00:00:00

abstract：BACKGROUND:As one of the highest forest ecosystems in the world, Polylepis forests are recognized both as center of endemism and diversity along the Andes and as an ecosystem under serious threat from habitat loss, fragmentation, and climate change due to human activities. Effective conservation efforts are limited, in...

journal_title：PeerJ

authors： Sevillano-Ríos CS,Rodewald AD

更新日期：2017-04-27 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 Cuatro Ciénegas Basin (CCB) comprises several oligotrophic aquatic ecosystems limited by phosphorus. These aquatic systems are dominated by a high prokaryotic diversity, shaped by the stress of low nutrient supplies and interspecific competition. Although fungi constitute a diverse and important component of micro...

journal_title：PeerJ

authors： Velez P,Gasca-Pineda J,Rosique-Gil E,Eguiarte LE,Espinosa-Asuar L,Souza V

更新日期：2016-06-02 00:00:00

abstract：Background:Vegetation in the Mongolian Plateau is very sensitive to climate change, which has a significant impact on the regulation of terrestrial carbon cycle. Methods:We analyzed spatio-temporal changes of both growing season and the seasonal Normalized Difference Vegetation Index (NDVI) using simple linear trend a...

journal_title：PeerJ

authors： Meng M,Huang N,Wu M,Pei J,Wang J,Niu Z

更新日期：2019-09-30 00:00:00

abstract：:Climate change will significantly affect plant distribution as well as the quality of medicinal plants. Although numerous studies have analyzed the effect of climate change on future habitats of plants through species distribution models (SDMs), few of them have incorporated the change of effective content of medicina...

journal_title：PeerJ

authors： Guo Y,Wei H,Lu C,Gao B,Gu W

更新日期：2016-10-20 00:00:00

abstract：:Many migratory bird species show high levels of site fidelity to their wintering sites, which confers advantages due to prior knowledge, but may also limit the ability of the individual to move away from degrading sites or to detect alternative foraging opportunities. Winter site fidelity often varies among age groups...

journal_title：PeerJ

authors： Lourenço PM,Alves JA,Reneerkens J,Loonstra AJ,Potts PM,Granadeiro JP,Catry T

更新日期：2016-09-28 00:00:00

abstract：:Development of mobile sensors brings new opportunities to medical research. In particular, mobile electroencephalography (EEG) devices can be potentially used in low cost screening for epilepsy and other neurological and psychiatric disorders. The necessary condition for such applications is thoughtful validation in t...

journal_title：PeerJ

authors： Kutafina E,Brenner A,Titgemeyer Y,Surges R,Jonas S

更新日期：2020-05-01 00:00:00

abstract：:The aim of this study was to identify the facets influencing job satisfaction and intention to quit of nurses employed in Turkey. Using a non-probability sampling technique, 417 nurses from six large private hospitals were surveyed from March 2014 to June 2014. The nurses' demographic data, their job-related satisfact...

journal_title：PeerJ

authors： Masum AK,Azad MA,Hoque KE,Beh LS,Wanke P,Arslan Ö

更新日期：2016-04-26 00:00:00

abstract：:Chronic kidney disease (CKD) is a common disease in elderly dogs. The present study aims to evaluate the efficacy of a dietary supplement containing calcium carbonate, calcium-lactate gluconate, chitosan and sodium bicarbonate in dogs with IRIS stage 3 of CKD. Twenty dogs were enrolled in the study, ten were administe...

journal_title：PeerJ

authors： Martello E,Perondi F,Capucchio MT,Biasato I,Biasibetti E,Cocca T,Bruni N,Lippi I

更新日期：2020-08-14 00:00:00

abstract：:The proportion of females calving (PFC) each year has been employed as an indicator of population reproductive performance in ungulates, especially for species that breed annually, because it requires less detailed population data than inter-birthing intervals and age at first reproduction. For asynchronous breeders w...

journal_title：PeerJ

authors： Law PR,Fike B

更新日期：2018-08-15 00:00:00

abstract：:The objective of this study was to quantify consumption of clothianidin-treated corn seed by birds following standard planting practices. Based on post-planting seed counts on 21 fields in southwestern Ontario, Canada, between 29 and 813 seeds/ha (mean of 224 ± 167 (SD)) were estimated to remain on the soil surface im...

journal_title：PeerJ

authors： McGee S,Whitfield-Aslund M,Duca D,Kopysh N,Dan T,Knopper L,Brewer L

更新日期：2018-11-07 00:00:00

abstract：:There is currently great interest in applying neural networks to prediction tasks in medicine. It is important for predictive models to be able to use survival data, where each patient has a known follow-up time and event/censoring indicator. This avoids information loss when training the model and enables generation ...

journal_title：PeerJ

authors： Gensheimer MF,Narasimhan B

更新日期：2019-01-25 00:00:00

abstract：:In this study, silver nanoparticles (NP) were synthesized by two methods: using an aqueous extract of Mentha spicata leaves and using citrate ions as stabilizing agent, and the cytotoxicity and anticancer activity of both NP were evaluated in vitro. The particles synthesized with the aqueous extract were spherical wit...

journal_title：PeerJ

authors： Torres-Martínez Y,Arredondo-Espinoza E,Puente C,González-Santiago O,Pineda-Aguilar N,Balderas-Rentería I,López I,Ramírez-Cabrera MA

更新日期：2019-12-09 00:00:00

abstract：:We describe a new species of Oligodon from the highlands of the Langbian Plateau, southern Truong Son Mountains, Vietnam, based on morphological and molecular phylogenetic analyses. The new species, Oligodon rostralissp. nov is distinguished from its congeners by the following morphological characters: medium size in ...

journal_title：PeerJ

authors： Nguyen HN,Tran BV,Nguyen LH,Neang T,Yushchenko PV,Poyarkov NA

更新日期：2020-01-06 00:00:00

abstract：:The Natural Mortality coefficient (M) is a key parameter for stock assessments. The need to establish age-specific natural mortality coefficients is widely recognized because M decreases rapidly over the early stages of the life cycle until it reaches a stable M value around the age-at-maturity. The aim of this study ...

journal_title：PeerJ

authors： Romero-Gallardo S,Velázquez-Abunader I,López-Rocha JA,Garza-Gisholt E

更新日期：2018-07-18 00:00:00

abstract：:Crop landraces are fundamental resources to increase the eroded genepool of modern crops in order to adapt agriculture to future challenges; plus, they are of immeasurable heritage and cultural value. Between the 1940s and the 1960s open-pollinated varieties (OPVs) of flint and semi-flint maize in Europe were almost c...

journal_title：PeerJ

authors： Ardenghi NMG,Rossi G,Guzzon F

更新日期：2018-07-04 00:00:00

abstract：:Live trapping is a common tool used to assess demography of small mammals. However, live-trapping is often expensive and stressful to captured individuals. Thus, assessing the relative tradeoffs among study goals, project expenses, and animal well-being is necessary. Here, we evaluated how apparent bias and precision ...

journal_title：PeerJ

authors： Weldy MJ,Wilson TM,Lesmeister DB,Epps CW

更新日期：2019-10-03 00:00:00

abstract：:Background. Just as for most other tortoise species, the once common Chaco tortoise, Chelonoidis chilensis (Testudinidae), is under constant threat across it distribution in Argentina, Bolivia and Paraguay. Despite initial qualitative description of the species distribution and further individual reports of new locati...

journal_title：PeerJ

authors： Ruete A,Leynaud GC

更新日期：2015-10-01 00:00:00

abstract：:Mauremys reevesii is a classical organism with temperature-dependent sex determination (TSD). Gonad development in early life has recently received considerable attention but gonadal maintenance after sex differentiation in turtles with TSD remains a mystery. In this study, we sequenced the transcriptomes for the adul...

journal_title：PeerJ

authors： Xiong L,Dong J,Jiang H,Zan J,Tong J,Liu J,Wang M,Nie L

更新日期：2019-03-08 00:00:00

abstract：Background:Acute respiratory distress syndrome (ARDS) is associated with significantly increased risk of death, and early risk stratification may help to choose the appropriate treatment. The study aimed to develop a neural network model by using a genetic algorithm (GA) for the prediction of mortality in patients with...

journal_title：PeerJ

authors： Zhang Z

更新日期：2019-09-16 00:00:00

abstract：:There is a lack of stability in language difficulties across early childhood: most late talkers (LTs) resolve their difficulties by pre-school; and a significant number of children who were not LTs subsequently manifest language difficulties. Greater reliability in predicting individual outcomes is needed, which might...

journal_title：PeerJ

authors： Duff FJ,Nation K,Plunkett K,Bishop D

更新日期：2015-07-23 00:00:00

abstract：:Bioluminescent reporter genes, such as those from fireflies and bacteria, let researchers use light production as a non-invasive and non-destructive surrogate measure of microbial numbers in a wide variety of environments. As bioluminescence needs microbial metabolites, tagging microorganisms with luciferases means on...

journal_title：PeerJ

authors： Read HM,Mills G,Johnson S,Tsai P,Dalton J,Barquist L,Print CG,Patrick WM,Wiles S

更新日期：2016-06-22 00:00:00