Behavioural variability among captive African elephants in the use of the trunk while feeding.

abstract：BACKGROUND:Individuals with unilateral lower limb amputation have a high risk of developing knee osteoarthritis (OA) in their intact limb as they age. This risk may be related to joint loading experienced earlier in life. We hypothesized that loading during walking would be greater in the intact limb of young US milita...

journal_title：PeerJ

authors： Miller RH,Krupenevich RL,Pruziner AL,Wolf EJ,Schnall BL

更新日期：2017-02-02 00:00:00

abstract：Background:Kinorhynchs are marine, microscopic invertebrates inhabiting the seafloors. Their segmented trunk equipped with spines and processes has inspired scientists to give them the common name "mud dragons." Even though kinorhynchs have been known since the 19th century, less than 300 species are known to science, ...

journal_title：PeerJ

authors： Sørensen MV,Grzelak K

更新日期：2018-09-28 00:00:00

abstract：Background:Bioactive peptides can prevent damage associated with oxidative stress in humans when consumed regularly. Recently, peptides have attracted immense interest because of their beneficial functional properties, safety and little or no side effects when used at high concentration. Most antioxidant peptides are s...

journal_title：PeerJ

authors： Sonklin C,Laohakunjit N,Kerdchoechuen O

更新日期：2018-07-27 00:00:00

abstract：:Background. Child undernutrition and flooding are highly prevalent public health issues in many developing countries, yet we have little understanding of preventive strategies for effective coping in these circumstances. Education has been recently highlighted as key to reduce the societal impacts of extreme weather e...

journal_title：PeerJ

authors： Rodriguez-Llanes JM,Ranjan-Dash S,Mukhopadhyay A,Guha-Sapir D

更新日期：2016-03-01 00:00:00

abstract：Background:The highest rate of cancer-related deaths worldwide is from lung adenocarcinoma (LUAD) annually. Metabolism was associated with tumorigenesis and cancer development. Metabolic-related genes may be important biomarkers and metabolic therapeutic targets for LUAD. Materials and Methods:In this study, the glean...

journal_title：PeerJ

authors： Zhao Z,He B,Cai Q,Zhang P,Peng X,Zhang Y,Xie H,Wang X

更新日期：2020-09-24 00:00:00

abstract：:Finite Element Analysis (FEA) is a useful method for understanding form and function. However, modelling of fossil taxa invariably involves assumptions as a result of preservation-induced loss of information in the fossil record. To test the validity of predictions from FEA, given such assumptions, these results could...

journal_title：PeerJ

authors： Konietzko-Meier D,Gruntmejer K,Marcé-Nogué J,Bodzioch A,Fortuny J

更新日期：2018-02-26 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：:A conglomerate bed from the Tournaisian Ballagan Formation of Scotland preserves a rich array of vertebrate and other nonmarine fossils providing an insight into the wider ecosystem and paleoenvironment that existed during this pivotal stage of Earth history. It challenges hypotheses of a long-lasting post-extinction ...

journal_title：PeerJ

authors： Clack JA,Bennett CE,Davies SJ,Scott AC,Sherwin JE,Smithson TR

更新日期：2019-01-03 00:00:00

abstract：:The exploration of the evolution of RNA viruses has been aided recently by the discovery of copies of fragments or complete genomes of non-retroviral RNA viruses (Non-retroviral Endogenous RNA Viral Elements, or NERVEs) in many eukaryotic nuclear genomes. Among the most prominent NERVEs are partial copies of the RNA d...

journal_title：PeerJ

authors： Bruenn JA,Warner BE,Yerramsetty P

更新日期：2015-04-09 00:00:00

abstract：:In contrast to reports of wild primates, studies of captive primates' flexibility often reveal conservatism: individuals are unable to switch to new and more efficient strategies when task demands change. We propose that such conservatism might be a result of task design and hypothesize that conservatism might be link...

journal_title：PeerJ

authors： Jacobson SL,Hopper LM

更新日期：2019-01-08 00:00:00

abstract：:Müller glia in the zebrafish retina respond to retinal damage by re-entering the cell cycle, which generates large numbers of retinal progenitors that ultimately replace the lost neurons. In this study we compared the regenerative outcomes of adult zebrafish exposed to one round of phototoxic treatment with adult zebr...

journal_title：PeerJ

authors： Ranski AH,Kramer AC,Morgan GW,Perez JL,Thummel R

更新日期：2018-09-20 00:00:00

abstract：:Knowledge on the precise identification of fish resources is critical for sustainable fisheries management. This study employs the DNA barcoding approach to generate a molecular taxonomic catalogue of commercially important reef fishes in the waters of Weh Island (Aceh Province), the most northerly inhabited island in...

journal_title：PeerJ

authors： Fadli N,Mohd Nor SA,Othman AS,Sofyan H,Muchlisin ZA

更新日期：2020-08-05 00:00:00

abstract：BACKGROUND:Assessing psychological pain has been recommended as an integral part of a comprehensive suicide risk assessment. The Psychache Scale, an established measure of psychological pain, does not specify a time frame for when pain is experienced, which may inadvertently increase the likelihood of identifying indiv...

journal_title：PeerJ

authors： Meerwijk EL,Weiss SJ

更新日期：2017-06-22 00:00:00

abstract：:Background. Recurrent pain is a common experience in childhood, but only few children with recurrent pain attend a physician. Previous studies yielded conflicting findings with regard to predictors of health care utilization in children with recurrent pain. Methods. The present study analyzes data from the German Heal...

journal_title：PeerJ

authors： Hirschfeld G,Wager J,Zernikow B

更新日期：2015-04-28 00:00:00

abstract：Background:The mangrove crab Ucides cordatus is considered a key species for the ecological balance of mangrove forests and a major source of employment and income for traditional crab collectors in Brazil. Several studies evidenced weak genetic variation among populations due to an efficient larval transport. However,...

journal_title：PeerJ

authors： Britto FB,Schmidt AJ,Carvalho AMF,Vasconcelos CCMP,Farias AM,Bentzen P,Diniz FM

更新日期：2018-04-30 00:00:00

abstract：:Background. Hand function is essential to a person's self-efficacy and greatly affects quality of life. Adapted utensils with handles of increased diameters have historically been used to assist individuals with arthritis or other hand disabilities for feeding, and other related activities of daily living. To date, mi...

journal_title：PeerJ

authors： McDonald SS,Levine D,Richards J,Aguilar L

更新日期：2016-02-15 00:00:00

abstract：BACKGROUND:In Burkina Faso, it is not uncommon for mothers to drink alcohol, even during pregnancy. We aimed to study the association between maternal alcohol consumption during pregnancy and the child's cognitive performance using the Kaufman Assessment Battery for Children, 2nd edition (KABC-II) and the Children's Ca...

journal_title：PeerJ

authors： Sanou AS,Diallo AH,Holding P,Nankabirwa V,Engebretsen IMS,Ndeezi G,Tumwine JK,Meda N,Tylleskar T,Kashala-Abotnes E

更新日期：2017-06-30 00:00:00

abstract：Background:The gray snapper (Lutjanus griseus) has a tropical and subtropical distribution. In much of its range this species represents one of the most important fishery resources because of its high quality meat and market value. Due to this, this species is vulnerable to overfishing, and population declines have bee...

journal_title：PeerJ

authors： Rosado-Nic OJ,Hogan JD,Lara-Arenas JH,Rosas-Luis R,Carrillo L,Villegas-Sánchez CA

更新日期：2020-02-10 00:00:00

abstract：:On the purpose of enhancing the forensic efficiency of CODIS STR loci, new STR loci have been gradually discovered and developed into some commercial multiplex systems. Recently, 22 STR loci including 18 non-CODIS STR loci and four CODIS STR loci were investigated in 501 unrelated healthy individuals of Kazakh ethnic ...

journal_title：PeerJ

authors： Chen C,Guo Y,Jin X,Cui W,Wei Y,Fang Y,Lan Q,Kong T,Xie T,Zhu B

更新日期：2019-04-25 00:00:00

abstract：BACKGROUND:With their Pan-American distribution, long-nosed armadillos (genus Dasypus) constitute an understudied model for Neotropical biogeography. This genus currently comprises seven recognized species, the nine-banded armadillo (D. novemcinctus) having the widest distribution ranging from Northern Argentina to the...

journal_title：PeerJ

authors： Billet G,Hautier L,de Thoisy B,Delsuc F

更新日期：2017-08-15 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：:Web-spinning spiders that inhabit stream channels are considered specialists of aquatic ecosystems and are major consumers of emerging aquatic insects, while other spider taxa are more commonly found in riparian forests and as a result may consume more terrestrial insects. To determine if there was a difference in spi...

journal_title：PeerJ

authors： Kelly SP,Cuevas E,Ramírez A

更新日期：2015-10-15 00:00:00

abstract：:The present research investigated the response of silver maple (Acer saccharinum L.) to salt treatment. The short- and long-term effects of NaCl and CaCl2 treatments on plant fitness characteristics (growth parameters, leaf chlorophyll content) and biochemical stress-coping mechanisms (proline accumulation as well as ...

journal_title：PeerJ

authors： Patykowski J,Kołodziejek J,Wala M

更新日期：2018-12-21 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

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：:Mitochondria are small, energy-producing structures vital to the energy needs of the body. Genetic mutations cause mitochondria to fail to produce the energy needed by cells and organs which can cause severe disease and death. These genetic mutations are likely to be in the mitochondrial DNA (mtDNA), or possibly in th...

journal_title：PeerJ

authors： Ahuja AS

更新日期：2018-05-21 00:00:00

abstract：Background:Wearable activity trackers are regarded as a new opportunity to deliver health promotion interventions. Indeed, while the prediction of active behaviors is currently primarily relying on the processing of accelerometer sensor data, the emergence of smart clothes with multi-sensing capacities is offering new ...

journal_title：PeerJ

authors： Ren D,Aubert-Kato N,Anzai E,Ohta Y,Tripette J

更新日期：2020-10-28 00:00:00

abstract：Background:Anaplastic thyroid carcinoma (ATC) is a rare malignant tumor with a poor prognosis. However, there is no useful clinical prognostic predictive tool for ATC so far. Our study identified risk factors for survival of ATC and created a reliable nomogram to predict overall survival (OS) and cancer-specific surviv...

journal_title：PeerJ

authors： Gui W,Zhu W,Lu W,Shang C,Zheng F,Lin X,Li H

更新日期：2020-05-21 00:00:00

abstract：:Deposits spanning the Radotruncana calcarata Taxon Range Zone at the Postalm section, Northern Calcareous Alps (Austria) are examined quantitatively for foraminiferal assemblages, especially the planktonic group. This study focuses on establishing a high resolution record spanning an 800 ka long stratigraphic interval...

journal_title：PeerJ

authors： Wolfgring E,Wagreich M

更新日期：2016-03-08 00:00:00

abstract：:The selection and validation of proper distinguishing characters are of crucial importance in taxonomic revisions. The modern classifications of orchids utilize the molecular tools, but still the selection and identification of the material used in these studies is for the most part related to general species morpholo...

journal_title：PeerJ

authors： Jakubska-Busse A,Żołubak E,Łobas Z,Gola EM

更新日期：2017-07-21 00:00:00