bluuebunny/crossref_metadata_2025_split huggingface dataset:
Escala de identificação de talentos pelo professor, ITP: evidências de validade e precisão
Authors: Tonete Suárez Janete , Muglia Wechsler Solange 
Published: April 2019

Diante da escassez de instrumentos de identificação de estudantes com características de altas habilidades/superdotação, a percepção de professores tem se mostrado um importante recurso. Assim sendo, este estudo investigou evidencias de validade e precisão da escala Identificação de Talentos pelo Professor (ITP). Os participantes foram 4 psicólogos (F3, M=1) 10 professores (F=10) e 120 estudantes (F=62, M=58), com idade entre 9 a 11 anos. A escala ITP possui 30 itens e avalia as áreas de compreensão verbal, raciocínio viso-espacial, pensamento lógico, rapidez de raciocínio, memoria e pensamento criativo. A validade pela estrutura interna foi auferida pela concordância entre juízes, pelo coeficiente Kappa de Cohen (K=0,82) A precisão foi auferida pelo Coeficiente Alpha de Cronbach. A validade por critério externo foi avaliada comparando as áreas da escala ITP com o Teste Não Verbal de Raciocínio Infantil (TNVRI). Relações significativas (p≤0,05) foram encontradas entre os subtestes de Memória visual (r=0,37) e de Criatividade (0,33) e com o Índice Cognitivo Total (0,31) com o TNVRI. Conclui-se que a Escala ITP possui evidências de validade e precisão para a avaliação de talentos criativos e intelectuais por professores.
Aprendizagem de posturas em equoterapia por crianças com transtorno do espectro autista (TEA)
Authors: De Oliveira Barbosa Gardenia , Munster Mey de Abreu van 
Published: April 2019

O estudo objetivou analisar a efetividade dos níveis de auxílio físico-verbal, visual-verbal e verbal no processo de aprendizagem de posturas em equoterapia por crianças com Transtorno do Espectro Autista (TEA). Quanto ao método, o presente estudo baseou-se em delineamento de sujeito único, do tipo AB; participaram do estudo três crianças com TEA com idades entre quatro e nove anos. Os participantes foram submetidos à intervenção equoterápica com duração de quatro meses, duas vezes por semana, correspondendo a 31 sessões individuais de equoterapia. Como instrumentos de coleta de dados foram empregados: 1. anamnese preenchida junto aos pais ou responsáveis; 2. protocolo de Avaliação de Habilidades Básicas de Aprendizagem ( Assessment of Basic Learning Abilities - ABLA); 3. diário de campo; 4. lista de checagem para registro diário de cada um dos auxílios utilizados em cada sessão de equoterapia. A análise dos dados referente à evolução de cada participante foi descritiva. Com relação aos resultados, observou-se que, ao término da intervenção, todos os participantes foram capazes de realizar as posturas com auxílio exclusivamente verbal, sendo o processo de aprendizagem mediado pelos auxílios visual-verbal e físico-verbal, sendo este último predominante. Concluiu-se que os níveis de auxílio necessários à aprendizagem de posturas em equoterapia devem variar conforme as necessidades individuais das crianças com TEA, não havendo um único método eficiente; todavia observa-se que a associação de estímulos de maneira direcionada pode levar ao sucesso na aprendizagem das crianças. conter o foco temático, objetivo, método, resultados e conclusões do trabalho.
Saul’yev and Group Explicit Methods
Authors: Østerby Ole 
Published: April 2019

The Saul’yev methods for parabolic equations are implicit in form, but can be solved explicitly and are therefore interesting in connection with non-linear problems. Abdullah’s Group Explicit methods are parallel in nature and therefore interesting when using parallel computers. The main objective of this paper is to study the accuracy of these methods. Using global error estimation we show that for all these methods the time step must be bounded by the square of the space step size to ensure a global error which can be estimated. As a curiosity we show that the two original Saul’yev methods in fact solve two different differential equations.
Effects of Patients’ Perceptions on Hypertension Treatment in the Cape Coast Metropolis, Ghana
Authors: Adong Julius Waamsasiko 
Published: April 2019

Background: The rising levels of hypertension related complications in Ghana are perceived to be associated with low anti-hypertensive medication adherence, which is attributable to patient wrong perceptions of hypertension.
Aim: To explore the effects of patients’ perceptions on hypertension treatment in cape coast, Ghana.
Study Design: Cross sectional survey.
Place and Duration of Study: Cape Coast, Ghana. December 2013 to March 2014.
Methodology: Eight out of 350 patients were selected from a baseline quantitative survey conducted at the Cape Coast Metropolis. The purposive sampling technique was used after baseline analysis with the Morisky Medication Adherence Scale, to select four adherents and four non-adherents to anti-hypertensive medication. In-depth interviews were conducted for the eight patients, data was processed using content analysis procedure based on three specific themes.
Results: Perceived appearance of symptoms was misinterpreted as sign of rising blood pressure. Combination of anti-hypertensive and herbal preparations was prevalent among non-adherents. Perceived side effects of anti-hypertensive particularly, sexual weakness was intense among non-adhering patients.
Conclusion: Hypertensive patients in the Cape Coast Metropolis of Ghana, were at a higher risk of medication non-adherence and uncontrolled blood pressure. The findings underscore the need to change patient orientation about hypertension, by addressing misconceptions of symptoms and medication side effects, whiles discouraging the use of herbal preparations.
Some Effects of Crude Aqueous Extracts of Hibiscus sabdariffa Leaves on the Testes and Sperm Parameters of Adult Male Wistar Rats (Rattus norelegicus)
Authors: Ebenezer A. Ashamu , David A. Oyeniran , Koyinsola T. Awora , Olayemi O. T. , Olutoyi O. Oyewo 
Published: April 2019

Hibiscus sabdariffa is a common garden plant native to warm-temperate, subtropical and tropical regions throughout the world, used in traditional medicine. It is mostly cultivated for its flowers. The calyces are used as a refrigerant in form of tea (especially in making the sorrel drink popularly known as ‘zobo’ in Nigeria), jellies and jam.
Aim: This study evaluates the effects of aqueous leaves extract of Hibiscus sabdariffa on the body, testis weight, histology of the testes and sperm parameter of adult male Wistar rats.
Methodology: Twenty-five adult male wistar rats of 10-12 weeks and weighing about 120-140g were divided into four groups (A, B, C and D) (five rats / group), Group A was kept as control and B, C, D were administered 250 mg, 500 mg, 1000 mg of Hibiscus sabdarfia leaf extract per Kg body weight for 8 weeks. The rats in each group were fed with rat feed and water ad libitum. Administration was by means of an oral cannula. At the end of each experimental period, the rats were sacrificed by cervical dislocation, the testes were harvested and immediately fixed in Bouin’s fluid for histological procedure. However, as soon as the animals were sacrificed, the cauda epididymis was removed and semen analysis was carried out immediately.
Results: There was a significant decrease in body weight of all the test groups at (P <0.05) and a significant decrease in the testes of the rats in group D when compared with the control group. Statistical analysis revealed decrease in sperm count, motility and viability with a significance decrease (P <0.05) in group D only as compared to control group. The histoarchitecture revealed significant degenerative changes characterized by vacuolization in the intestitium and seminiferous epithelium when compared with the control group.
Conclusion: The aqueous leaves extract of Hibiscus sabdariffa appears to have adverse effects on the fertility of male rats especially when taken over a long period of time.
Evaluation of Groundnut (Arachis hypogaea L.) Genotypes under Allahabad Agro-climatic Conditions in India
Authors: Vijaykumar Kamidi , Rai Prashant Kumar , Taqui A. , Kumar Nalluri Venkata Pavan 
Published: April 2019

The present investigation was carried out to elucidate the information on the performance of groundnut genotypes for quantitative and qualitative traits. The experimental design consisted of 11 groundnut genotypes (including one check) arranged in Randomized complete Block Design with three replications in the Kharif season 2014 at Field Experimentation Centre of the Department of Genetics and Plant Breeding, SHIATS Allahabad, Analysis of variance revealed the presence of considerable variation among the genotypes for all the characters studied. On the basis of mean performance among 11 genotypes ICG 163 was best genotype in growth like primary branches per plant (7.77), days to maturity(107.33), pod yield per plant (17.89 g), kernel yield (21.12 q ha-1) and oil yield (997 kg ha-1). ICG 434 and ICG 513 were the best in protein content (23.68%) and oil content (47.73%).
Antidiabetic, Analgesic, Antioxidant and Antimicrobial Potentials of Methanol Extracts of Fruits and Shoots of Brassica oleracea L. Var. Italic.
Authors: Nipun Tanzina Sharmin , Islam Md. Mohaiminul , Islam Jahidul , Hossain Md Shakhawat , Ahmed Ferdous , Azad A. K. , Taizy Refat Tasnim , Uddin S. M. Naim , Hossen S. M. Moazzem 
Published: April 2019

Background: Brassica oleracea L. var. italic conjointly known as “broccoli” is a crucial ayurvedic medication in traditional medicine mostly cultivated in Italy, France, England and USA. The aim of the present research work was to determine the antidiabetic, analgesic, antioxidant and antimicrobial potentials of fruits and shoots of broccoli.
Methods: In this study, antidiabetic activity was investigated using alloxan induced diabetic model. Analgesic activity was manifested using acetic acid-induced writhing reflex. Antioxidant activity was evaluated by DPPH scavenging method while antimicrobial activity screening was carried out by disc diffusion method.
Results: Qualitative phytoanalysis of methanol extracts assured the existence of flavonoids and tannins etc. Moreover, it contains mild antibacterial and antioxidant activity where IC50 of the extract is 1424.30µg/ml. It also contains slightly analgesic and antidiabetic activity.
Conclusion: Our results recommend that presence of flavonoids and tannins renders Brassica oleracea L. var. italic with therapeutic potential for oxidative stress and inflammation associated disorders.
Demographic consequences of climate variation along an elevational gradient for a montane terrestrial salamander
Authors: Caruso Nicholas M. , Rissler Leslie J. 
Published: April 2019

AbstractClimate change represents a significant threat to amphibians. However, for many species, the relationship between demography and climate is unknown, which limits predictive models. Here, we describe the life history variation ofPlethodon montanususing capture–recapture data over a period of 4 years, along an elevational gradient to determine how survival and growth vary with climate, and how these relationships vary with elevation. We used a hierarchical model to estimate asymptotic size and growth rate and a spatial Cormack‐Jolly‐Seber model to estimate the probability of capture and survival and dispersal variance. We found that during the active season, growth and survival rates are both positively affected by precipitation; however, while survival was positively affected by temperature at all elevations, higher temperatures led to a decrease in growth at lower elevations, while at higher elevations the opposite was true. During the inactive season, we found reduced growth rates, whereas survival was lower compared with the active at lower elevations but was higher at higher elevations. Increased inactive season temperatures resulted in decreased survival while we found that temperature, amount of snow, and elevation interacted to influence survival. At low elevations, which were warmer, survival decreased with increasing snowfall but at higher elevations, survival generally increased with increasing snowfall. Our results demonstrate that understanding how the environment can affect salamander demography to develop mechanistic models will require knowledge of the actual environmental conditions experienced by a given population as well as an understanding of the overall differences in climate at a given site.
Structural basis of hypoxic gene regulation by the Rv0081 transcription factor of Mycobacterium tuberculosis
Authors: Kumar Ashwani , Phulera Swastik , Rizvi Arshad , Sonawane Parshuram J. , Panwar Hemendra S. , Banerjee Sharmistha , Sahu Arvind , Mande Shekhar C. 
Published: April 2019

The transcription factor Rv0081 of Mycobacterium tuberculosis controls hypoxic gene expression and acts as a regulatory hub in the latent phase of tuberculosis (TB) infection. We report here the crystal structure of Rv0081 at 2.9 Å resolution revealing that it belongs to the well‐known ArsR/SmtB family proteins. However, unlike other members in this family, Rv0081 has neither a metal‐binding domain nor does it possess Cys residues, suggesting an alternate mechanism of gene regulation. Our structural and biochemical analyses suggest the molecular basis for the recognition of self‐regulatory DNA sequences and a plausible mechanism of regulation of Rv0081 in the latent phase of TB infection.DatabaseStructural data are available in the Protein Data Bank under the accession number – 6JMI
Systematic Review of the Impact of Inflammatory Arthritis on Intimate Relationships and Sexual Function
Authors: Restoux Laura J. , Dasariraju Silpa R. , Ackerman Ilana N. , Van Doornum Sharon , Romero Lorena , Briggs Andrew M. 
Published: April 2019

ObjectiveTo systematically review evidence of the impact of inflammatory arthritis on, or association of inflammatory arthritis with, intimate relationships and sexual function.MethodsOvid Medline, Ovid PsycINFO, Ovid Embase, and EBSCO CINAHL databases were searched. Two independent reviewers selected articles, extracted data, and conducted manual searches of reference lists from included studies and previous reviews. The quality of evidence was assessed using standard risk‐of‐bias tools.ResultsFifty‐five eligible studies were reviewed. Of these, 49 (89%) were quantitative, 5 (9.1%) were qualitative, and 1 (1.8%) used a mixed‐method design. Few quantitative studies were rated as low risk of bias (n = 7 [14%]), many were rated as moderate (n = 37 [74%]) or high risk (n = 6 [12%]). Quantitative study sample sizes ranged from 10 to 1,272 participants, with a reported age range 32–63 years. Qualitative study sample sizes ranged from 8 to 57 participants, with a reported age range 20–69 years. In studies reporting the Female Sexual Function Index, all inflammatory arthritis groups demonstrated mean scores ≤26.55 (range of mean ± SD scores: 14.2 ± 7.8 to 25.7 ± 4.7), indicating sexual dysfunction. In studies reporting the International Index of Erectile Function, all inflammatory arthritis groups reported mean scores ≤25 (range of mean ± SD scores: 16.0 ± 5.3 to 23.8 ± 7.0), indicating erectile dysfunction. Key qualitative themes were impaired sexual function and compromised intimate relationships; prominent subthemes included inflammatory arthritis–related pain and fatigue, erectile dysfunction, diminished sexual desire, and sexual function fluctuations according to disease activity.ConclusionSexual dysfunction appears highly prevalent among men and women with inflammatory arthritis, and increased clinician awareness of this impairment may guide provision of tailored education and support.
Creating an Air‐Stable Sulfur‐Doped Black Phosphorus‐TiO2 Composite as High‐Performance Anode Material for Sodium‐Ion Storage
Authors: Song Tianbing , Chen Hai , Li Zhi , Xu Qunjie , Liu Haimei , Wang Yonggang , Xia Yongyao 
Published: April 2019

AbstractWith the increasing demand for low cost, long lifetime, high energy density storage systems, an extensive amount of effort has recently been focused on the development of sodium‐ion batteries (SIBs), and a variety of cathode materials have been discovered. However, looking for the most suitable anode material for practical application is a major challenge for SIBs. Herein, a high capacity sulfur‐doped black phosphorus‐TiO2 (TiO2‐BP‐S) anode material for SIBs is first synthesized by a feasible and large‐scale high‐energy ball‐milling approach, and its stability in air exposure is investigated through X‐ray photoelectron spectroscopy. The morphology of TiO2‐BP‐S is characterized using transmission electron microscopy, indicating that the TiO2 nanoparticles produce PTi bonds with BP. The TiO2‐BP‐S composite with PS and PTi bonds exhibits excellent stability in air and the superior electrochemical performance. For example, the discharge specific capacity is up to 490 mA h g−1 after 100 cycles at 50 mA g−1, and it remains at 290 mA h g−1 after 600 cycles at 500 mA g−1. Meanwhile, the scientific insight that the formation of stable PS and PTi bonds can provide a guide for the practical large‐scale application of SIBs in other titanium base and black phosphorus materials is looked forward.
Ru–Ru2PΦNPC and NPC@RuO2 Synthesized via Environment‐Friendly and Solid‐Phase Phosphating Process by Saccharomycetes as N/P Sources and Carbon Template for Overall Water Splitting in Acid Electrolyte
Authors: Yu Jiayuan , Li Guixiang , Liu Hui , Zhao Lili , Wang Aizhu , Liu Zhen , Li Haidong , Liu Hong , Hu Yongyou , Zhou Weijia 
Published: April 2019

AbstractAlthough numerous ruthenium‐based phosphates possess high catalytic activities for hydrogen evolution reaction (HER), most of them rely on dangerous and toxic synthesis routes. Biological slices confirm that Ru ions can penetrate the cell walls of saccharomycete, which facilitates the adsorption of Ru ions. Herein, based on a green synthesis process by saccharomycete cells as the carbon template and nitrogen/phosphorus (N/P) sources, novel Janus‐like ruthenium–ruthenium phosphide nanoparticles embedded into a N/P dual‐doped carbon matrix (Ru–Ru2PΦNPC) electrocatalyst for HER are synthesized. Electrochemical tests reveal that Ru–Ru2PΦNPC displays remarkable performance with a low overpotential of 42 mV at 10 mA cm−2 and demonstrates superior stability at a high current density in 0.5 m H2SO4. Furthermore, ruthenium oxide nanoparticles coated N/P dual‐doped carbon (NPC@RuO2) are also synthesized with a yolk–shell structure using saccharomycete cells as the core template and RuO2 as a shell to isolate saccharomycete cells from the oxidation reaction during calcination in air. The NPC@RuO2 as oxygen evolution reaction electrocatalyst possesses a low overpotential of 220 mV at 10 mA cm−2. Finally, the Ru–Ru2PΦNPC is integrated as a cathode and NPC@RuO2 is integrated as an anode to construct a two‐electrode electrolyzer to enable an excellent performance for overall water splitting with a cell voltage of 1.50 V at 10 mA cm−2 in 0.5 m H2SO4.
Heparin‐Conjugated Decellularized Bone Particles Promote Enhanced Osteogenic Signaling of PDGF‐BB to Adipose‐Derived Stem Cells in Tissue Engineered Bone Grafts
Authors: Rindone Alexandra N. , Kachniarz Bartlomiej , Achebe Chukwuebuka C. , Riddle Ryan C. , O'Sullivan Aine N. , Dorafshar Amir H. , Grayson Warren L. 
Published: April 2019

AbstractAdipose‐derived stem cells (ASCs) are a promising cell source for regenerating critical‐sized craniofacial bone defects, but their clinical use is limited due to the supraphysiological levels of bone morphogenetic protein‐2 required to induce bone formation in large grafts. It has been recently reported that platelet‐derived growth factor‐BB (PDGF) directly enhances the osteogenesis of ASCs when applied at physiological concentrations. In this study, a biomimetic delivery system that tethers PDGF to decellularized bone matrix (DCB) is developed to enhance osteogenic signaling in bone grafts by colocalizing PDGF‐extracellular matrix cues. Heparin is conjugated to DCB particles (HC‐DCB) to promote sustained binding of PDGF via electrostatic interactions. HC‐DCB particles bind to PDGF with >99% efficiency and release significantly less PDGF over 21 days compared to nonconjugated DCB particles (1.1% vs 22.8%). HC‐DCB‐PDGF signaling in polycaprolactone (PCL)‐fibrin grafts promotes >40 µg Ca2+ µg−1 DNA deposition by ASCs during in vitro osteogenic culture compared to grafts without HC‐DCB or PDGF. Furthermore, more bone formation is observed in grafts with HC‐DCB‐PDGF at 12 weeks following implantation of grafts into murine critical‐sized calvarial defects. Collectively, these results demonstrate that HC‐DCB enhances the osteogenic signaling of PDGF to ASCs and may be applied to promote ASC‐mediated bone regeneration in critical‐sized defects.
Elastic 3D‐Printed Hybrid Polymeric Scaffold Improves Cardiac Remodeling after Myocardial Infarction
Authors: Yang Yang , Lei Dong , Huang Shixing , Yang Qi , Song Benyan , Guo Yifan , Shen Ao , Yuan Zhize , Li Sen , Qing Feng‐Ling , Ye Xiaofeng , You Zhengwei , Zhao Qiang 
Published: April 2019

AbstractMyocardial remodeling, including ventricular dilation and wall thinning, is an important pathological process caused by myocardial infarction (MI). To intervene in this pathological process, a new type of cardiac scaffold composed of a thermoset (poly‐[glycerol sebacate], PGS) and a thermoplastic (poly‐[ε‐caprolactone], PCL) is directly printed by employing fused deposition modeling 3D‐printing technology. The PGS‐PCL scaffold possesses stacked construction with regular crisscrossed filaments and interconnected micropores and exhibits superior mechanical properties. In vitro studies demonstrate favorable biodegradability and biocompatibility of the PGS‐PCL scaffold. When implanted onto the infarcted myocardium, this scaffold improves and preserves heart function. Furthermore, the scaffold improves several vital aspects of myocardial remodeling. On the morphological level, the scaffold reduces ventricular wall thinning and attenuated infarct size, and on the cellular level, it enhances vascular density and increases M2 macrophage infiltration, which might further contribute to the mitigated myocardial apoptosis rate. Moreover, the flexible PGS‐PCL scaffold can be tailored to any desired shape, showing promise for annular‐shaped restraint device application and meeting the demands for minimal invasive operation. Overall, this study demonstrates the therapeutic effects and versatile applications of a novel 3D‐printed, biodegradable and biocompatible cardiac scaffold, which represents a promising strategy for improving myocardial remodeling after MI.
Direct Blow Spinning of Flexible and Transparent Ag Nanofiber Heater
Authors: Wang Haiyang , Lin Sen , Zu Di , Song Jianan , Liu Zhenglian , Li Lei , Jia Chao , Bai Xiaopeng , Liu Junchen , Li Ziwei , Wang Dong , Huang Ya , Fang Minghao , Lei Ming , Li Bo , Wu Hui 
Published: April 2019

AbstractFog and frost formation cause many issues such as influencing building interior daylighting of architectural aesthetics or causing traffic accidents in cold weather. Transparent flexible heaters (TFHs) play a vital role in defogging smart windows. Herein, the rapid and facile fabrication of uniform, flexible, and large‐scale TFHs based on percolation networks of Ag nanofiber (AgNF) is reported using blow‐spinning method followed with room‐temperature UV reduction. The TFHs exhibit excellent optical and electrical properties with a high transmittance of ≈95% and low sheet resistance of ≈16 Ω sq−1. The TFHs based on AgNFs also present excellent mechanical flexibility and remain steady after 1000 cycles of bending. Furthermore, the saturation temperature of AgNF/cPI (colorless polyimide) electrode‐based TFHs (9.5 Ω sq−1) reaches more than 285 °C at a DC voltage of 10 V, more effective than those of tin‐doped indium oxide (ITO)‐based TFHs (55 Ω sq−1) about 150 °C at the same transmittance of visible light (88%). The flexible AgNFs‐based heater demonstrates excellent heating performance, as well as reliable chemical and mechanical durability in defogging smart windows of vehicles or buildings.