bluuebunny/crossref_metadata_2025_split huggingface dataset:
Instrumentos de avaliação de intenção empreendedora: uma revisão de literatura
Authors: Cortez Pedro Afonso , Filho Nelson Hauck 
Published: July 2020

Modelos de intenção empreendedora ajudam na compreensão das crenças individuais relacionadas a iniciar o próprio negócio em um futuro próximo. Embora ainda recente na literatura brasileira e focada na Teoria do Comportamento Empreendedor Planejado entre universitários na literatura latino-americana, a avaliação da intenção empreendedora tem sido conduzida utilizando diversos instrumentos psicométricos em contextos norte americanos e europeus. Uma questão de interesse, no entanto, é se essas ferramentas possuem definição conceitual apropriadamente fundamentada e propriedades psicométricas robustas para utilização. Para contribuir a essa questão, o presente estudo objetivou identificar os instrumentos de intenção empreendedora apresentados nas bases Web of Science e Scielo e descrever as bases teóricas
e as propriedades psicométricas desses instrumentos. Buscas nas bases de dados Web of Science e Scielo utilizando o descritor “intenção empreendedora” em português, inglês e espanhol permitiram localizar 676 artigos que, mediante a aplicação de critérios de inclusão e exclusão, resultaram na identificação de 13 distintos instrumentos de mensuração de intenção empreendedora entre os anos de 1993 e 2019. Dentre essas ferramentas, quatro escalas baseadas na teoria do Comportamento Empreendedor Planejado demonstraram definição conceitual apropriadamente fundamentada e níveis razoáveis de evidências de validade para a estrutura interna e consistência interna para avaliação de intenção empreendedora. Considera-se que esses instrumentos são os melhores candidatos a adaptações transculturais ao Brasil e
América Latina ou mesmo para inspirar novas medidas sobre o tema nesses contextos, tendo em vista a adequação teórica e propriedades psicométricas apresentadas na corrente revisão.
Research on the Design Innovation of Themed Party Day Activities of Grassroots Party Organizations in Colleges and Universities
Authors: Zhou Yong , Chen Siqi 
Published: July 2020

<p>As is known to all, science and technology is the first productive force. As the "base camp" for cultivating talents, colleges and universities should pay more attention to innovation. Grassroots party organizations in colleges and universities invest a lot of manpower and material resources in organizing innovative thematic party day activity, the purpose of which is to guarantee the thematic party day activity can realize dual innovation on form and content, to motivate party members in colleges and universities to actively take part in. As they are talents and newly-emerging force cultivated by colleges and universities, they are capable of accomplishing works of universities. Therefore, the theme of the party day activities should be feasible, so as to fully mobilize the enthusiasm of college party members and broaden their thinking. Such innovative activities are truly valuable activities. Therefore, activity design is particularly important. This paper conducts research and analysis on the design and innovation of themed party day activity of grassroots part organizations in colleges and universities. </p>
Perspective: COVID-19 and African American Religious Institutions
Authors: Bruce Marino A. 
Published: July 2020

Religious institutions have historically been an essential resource in African American communities and can serve as indispensable partners during a public health crisis. The purpose of this perspective is to establish African American churches, mosques, and temples as essential for an immediate, comprehensive, and sustained response to the elevated risk for and spread of COVID-19 among African Americans.Ethn Dis. 2020;30(3):425-428; doi:10.18865/ed.30.3.425
Hybrid Artificial Neural Network with Extreme Learning Machine Method and Cuckoo Search Algorithm to Predict Stock Prices
Authors: Prabawati Piping , Damayanti Auli , Suprajitno Herry 
Published: July 2020

This thesis aims to predict the stock prices, using artificial neural network with extreme learning machine (ELM) method and cuckoo search algorithm (CSA). Stock is one type of investment that is in great demand in Indonesia. The portion ownership of stock is determined by how much investment is invested in the company. In this case, stock is an aggressive type of investment instrument, because stock prices can change over time. In this case, ELM is used to determine forecasting values, while CSA is applied to compile and optimize the values of weights and biases to be used in the forecasting process. After obtaining the best weights and biases, the validation test process is then carried out to determine the level of success of the training process. The data used is the daily data of the stock price of PT. Bank Mandiri (Persero) Tbk. the total is 291 data. Furthermore, the data is divided into 70% for the training process is as many as 199 data and 30% for the validation test as many as 87 data. Then compiled pattern of training and validation test patterns is 198 patterns and 82 patterns. Based on the implementation of the program, with several parameter obtained the result of MSE training is 0.001304353, with an MSE of validation test is 0.0031517704. Because the MSE value obtained is relatively small, this indicates that the ELM-CSA network is able to recognize data patterns and is able to predict well.
CARACTERIZAÇÃO DE FEIÇÕES MORFOLÓGICAS NO CANAL DO RIO JAGUARIBE: TRECHO LIMOEIRO DO NORTE-QUIXERÉ
Authors: De Sousa Coelho Gerliane Kelly , Andrade José Hamilton Ribeiro 
Published: July 2020

Os sucessivos eventos de erosão, transporte e deposição de sedimentos que ocorrem nos rios proporcionam a formação e evolução de feições morfológicas no canal e na planície de inundação, com características morfológicas recorrentes a região onde está inserida. Ainda que haja estudos de rios localizados no clima semiárido, com padrão entrelaçado e anabranching, principalmente na Austrália, existe uma carência metodológica para rios semiáridos brasileiro. A produção acadêmica sobre barras e ilhas está concentrada nos ambientes fluviais localizados em clima tropical, subtropical e temperado, baseado nesse contexto, o trabalho tem como objetivo analisar as características morfológicas de barras e ilhas no rio Jaguaribe-CE, trecho que vai da passagem molhada da barragem das pedrinhas no Município de Limoeiro do Norte até a passagem molhada de Sucurujuba em Quixeré, com recorte temporal 2001 a 2016 (16 anos). Para isso, o trabalho foi estruturado a partir de uma lógica sistêmica, com etapas de caracterização da área de estudo; trabalho de campo para levantamento fotográfico e coleta de sedimentos; fase de laboratório para análise granulométrica através dos processos de peneiramento mecânico e pipetagem; e etapa de gabinete destinada à coleta de dados de chuva e vazão e ao sensoriamento remoto e geoprocessamento. Os resultados obtidos através da análise das imagens orbitais mostraram que as principais mudanças evolutivas referentes ao crescimento da área observada aconteceram entre 2014 e 2016, período correspondente à seca prologada no Ceará, que teve início em 2012. Verificou-se que as ilhas mais largas possuem tendência de sedimentação lateral superior, devido ao barramento de fluxo que o próprio depósito faz. No que refere as barras laterais, foi observado que sua gênese é resultado de processos distintos, registrados em períodos chuvosos como 2009, provocando a redistribuição sedimentar de partículas por todo o leito, e em anos secos como 2016, pela exposição de bancos arenosos antes submersos que faziam parte do leito molhado. As barras de planície, em sua totalidade, apresentaram crescimento areal em 100% dos depósitos, devido sua resistência frente a processos erosivos. Ademais, considerou-se necessária a adoção de classificações terminológicas pautados em características morfológicas para climas semiáridos, visto que, a má interpretação dos termos pode alterar os resultados da pesquisa.
L’élevage ovin extensif du Montmorillonais entre recherche d’autonomie, exigences des filières et simplicité de conduite
Authors: DEDIEU B. , CHABOSSEAU J.M. , BENOIT M. , LAIGNEL G. 
Published: July 2020

Les pratiques de conduite de 13 troupeaux ovins extensifs (chargement inférieur à 1 UGB/ha SFP) du Montmorillonais (Centre Ouest) sont analysées en référence à trois déterminants : la recherche d’autonomie fourragère (peu de concentrés distribués), la recherche de ventes au 1er semestre (cours élevés des agneaux) et la simplicité de la conduite. Trois conceptions de conduite sont identifiées, privilégiant l’économie de concentrés, des ventes précoces en début d’année, ou les deux à la fois. Les situations les plus autonomes renvoient à des niveaux de chargement très faibles (0,6-0,8 UGB/ha) où l’économie de concentrés porte sur l’alimentation des mères en plus de celui des agneaux. La simplicité de la conduite, repérée par une formule stable d’allotement des brebis, est manifeste dans les situations où l’agriculteur est le seul permanent (4 cas sur 6), situations non spécifiques d’une conception de conduite. Les performances techniques et économiques (marge brute par brebis) sont sensiblement équivalentes selon les conceptions de conduite et les formules d’allotement. La prise en compte des répartition des mise bas dans l’année, des formules d’allotement et de l’ajustement du chargement aux disponibilités hivernales précisent les questions techniques associées à l’ "extensif ".
Median Sacral Artery Rupture as a Complication of Posterior-Only Approach of L4 Total En Bloc Spondilectomy
Authors: Garcia-Maya Beatriz , Pizones Javier , Sanchez-Marquez Jose Miguel , Talavera Gloria , Perez-Grueso Francisco Javier , Fernandez-Baillo Nicomedes 
Published: July 2020

Case:
A 6-year-old patient with Ewing sarcoma at L4 who was treated with total en bloc spondilectomy (TES) through a posterior-only approach. During the dissection of the anterior L4 body, there was uncontrollable bleeding from an unknown origin, which needed packing, massive transfusion, and urgent laparotomy. A median sacral artery (MSA) rupture was identified as the cause of this massive bleeding. Eventually, the patient was successfully stabilized.

Conclusions:
To our knowledge, this is the first reported intraoperative bleeding of the MSA related to a lumbar TES through posterior-only approach. This life-threatening complication should be considered when planning for this type of surgery.
Characterization of the Rayoso Formation: The Importance of the 3D Modeling in Decision-Making for a Polymer Injection Project
Authors: Weisman Ignacio Jose , Lehu Remi Eric , Gandi Silvana , Tennerini Gerardo , Arguëllo Scotti Agustin 
Published: July 2020

Abstract
A chemical EOR project has been implemented in the fluvial succession of the Rayoso Formation since 2014. In the aim to understand polymer flooding processes, geological 3D modelling and numerical simulation are powerful tools to interpret field data and help to mitigate uncertainties of an early polymer injection at field scale. The Rayoso Formation was modeled following a multi-scale rationale: a multi-field scale model (&gt;50km), a field-scale model (&gt;10km) and a pilot-scale model (&gt;1km). The results of numerical simulations were compared with the observed field? data. These runs included polymer injection vs. water injection, multiple adsorption values and polymer degradation.
The key results of that work are summarized as following: For polymer injection the simulation reproduces the increasing oil cut in the observed data, whereas the waterflooding cases show an oil cut drop. Polymer simulation also matches the observed bottom hole pressure drops in producers better than water simulation. Based on these results, it has been possible to determine the polymer response.Analytical calculations, based on tracer arrival time, give a polymer adsorption greater than 300 µg/g. Using different values of adsorption, the simulation shows that the actual value is one magnitude order less than the calculated one. Therefore, extremely high values of adsorption are excluded.Significant degradation is ruled out by running a simulation with a polymer viscosity 4 times smaller than the non-degraded one at the same concentration. The simulation shows an early arrival of the degraded (less viscous) polymer at the producer wells. This has never been observed in the wells showing that the degredation has a negligible effect.
Numerical simulation is thus used to interpret the polymer pilot results and consequently, allows to mitigate risks and make early decisions.
Mathematical Modeling, Laboratory Experiments, and Sensitivity Analysis of Bioplug Technology at Darcy Scale
Authors: Landa-Marbán David , Bødtker Gunhild , Vik Bartek Florczyk , Pettersson Per , Pop Iuliu Sorin , Kumar Kundan , Radu Florin Adrian 
Published: July 2020

Summary
In this paper, we study a Darcy-scale mathematical model for biofilm formation in porous media. The pores in the core are divided into three phases: water, oil, and biofilm. The water and oil flow are modeled by a generalized version of Darcy's law, and the substrate is transported by mechanical dispersion, diffusion, and convection in the water phase. Initially, there is biofilm on the pore walls. The biofilm consumes substrate for production of biomass and modifies the pore space, which changes the rock permeability. The model includes detachment of biomass caused by water flux and death of bacteria, and it is implemented in the MATLAB Reservoir Simulation Toolbox (MRST). We discuss the capability of the numerical simulator to capture results from laboratory experiments. We perform a novel sensitivity analysis based on sparse-grid interpolation and multiwavelet expansion to identify the critical model parameters. Numerical experiments using diverse injection strategies are performed to study the impact of different porosity/permeability relationships in a core saturated with water and oil.
Storage time and temperature affect the isolation rate of Mannheimia haemolytica and Pasteurella multocida from bovine bronchoalveolar lavage samples
Authors: Driessche Laura Van , De Neve Charlotte , Haesebrouck Freddy , Leenen Katharina van , Boyen Filip , Pardon Bart 
Published: July 2020

Abstract
Background: A microbiological diagnosis is essential to better target antimicrobial treatment, control and prevention of respiratory tract infections in cattle. Under field conditions, non-endoscopic broncho-alveolar lavage (nBAL) samples are increasingly collected. To what extent the highly variable turnaround time and storage temperatures between sampling and cultivation affect the isolation rate of bacterial pathogens is unknown. Therefore, the objective of this experimental study was to determine the effect of different storage temperatures (0°C, 8°C, 23°C and 36°C) and times (0,2,4,6,8,24,48 hours) on the isolation rate and concentration of Pasteurellaceae in nBAL samples from clinically affected animals.Results: At a storage temperature temperature of 36°C isolation rates of Mannheimia haemolytica and Pasteurella multocida were significantly reduced 6h and 48h after sampling, respectively. At room temperature (23°C), a decrease in M. haemolytica and P. multocida isolation rate was noticed, starting at 24 and 48 hours after sampling, respectively, but only significant for P. multocida at 48h. The presence of microbial contamination negatively affected the isolation of P. multocida in clinical nBAL samples, but not of M. haemolytica. Conclusion: Optimal M. haemolytica and P. multocida isolation rates from clinical nBAL samples are obtained after storage at 0°C or 8°C, provided that the sample is cultivated within 24 hours after sampling. The maximum period a sample can be stored without an effect on the M. haemolytica and P. multocida isolation success varies and is dependent on the storage temperature and the degree of microbial contamination.
Prevalence of microhematuria in renal colic and urolithiasis: a systematic review and meta-analysis
Authors: Minotti Bruno , Treglia Giorgio , Pascale Maria Rosa , Ceruti Samuele , Cantini Laura , Anselmi Luciano , Saporito Andrea 
Published: July 2020

Abstract
Background This systematic review and meta-analysis aims to investigate the prevalence of microhematuria in patients presenting with suspected acute renal colic and/or confirmed urolithiasis at the emergency department. Methods A comprehensive literature search was conducted to find relevant data on prevalence of microhematuria in patients with suspected acute renal colic and/or confirmed urolithiasis. Data from each study regarding study design, patient characteristics and prevalence of microhematuria were retrieved. A random effect-model was used for the pooled analyses. Results Forty-nine articles including 15’860 patients were selected through the literature search. The pooled microhematuria prevalence was 77% (95%CI: 73-80%) and 84% (95%CI: 80-87%) for suspected acute renal colic and confirmed urolithiasis, respectively. This proportion was much higher when the dipstick was used as diagnostic test (80% and 90% for acute renal colic and urolithiasis, respectively) compared to the microscopic urinalysis (74% and 78% for acute renal colic and urolithiasis, respectively). Conclusions This meta-analysis revealed a high prevalence of microhematuria in patients with acute renal colic (77%), including those with confirmed urolithiasis (84%). Intending this prevalence as sensitivity, we reached moderate values, which make microhematuria alone a poor diagnostic test for acute renal colic or urolithiasis. Microhematuria could possibly still important to assess the risk in patients with renal colic.
Beliefs and misconceptions about contraception and condom use among adolescents in south-east Nigeria
Authors: Mbachu Chinyere Ojiugo , Agu Ifunanya Clara , Obayi Chinonso , Eze Irene , Ezumah Nkoli , Onwujekwe Obinna 
Published: July 2020

Abstract
Background: Misconceptions about the usefulness of condoms and other contraceptives still expose many unmarried adolescents to the risk of unwanted teenage pregnancies and sexually-transmitted infections (STIs). This study explored beliefs and misconceptions about condoms and other contraceptives among adolescents in Ebonyi state, south-east Nigeria. Method: A qualitative study was undertaken in six local government areas in Ebonyi state, southeast Nigeria. Data were collected within a period of one month from in and out-of-school adolescents aged 13 to 18 years using twelve focus group discussions (FGD). The data was analyzed using the thematic framework approach. Result: Majority of the adolescents were knowledgeable about methods of contraception, how they are used and their modes of action. They were also knowledgeable about the dual effects of condoms in prevention of pregnancy and STIs. However, some misconceptions that were expressed by some adolescents were that pregnancy could be prevented by the use of i) hard drugs, ii) laxatives, iii) white chlorine, and iv) boiled alcoholic beverages. Condoms were described by some adolescent boys as reusable. Condoms were also perceived by some adolescents to reduce sexual pleasure, and this opinion was mostly held by boys. Coitus interruptus (withdrawal method) was therefore considered more preferable than condoms for prevention of pregnancy. Conclusion: Although majority adolescents have knowledge about contraception and condom use, some misconceptions still persist. These misconceptions put many adolescents at increased risk for pregnancy and STIs which are detrimental to their health and wellbeing. Concerted efforts should be made through educational and behavior change interventions in schools and within communities to debunk persisting misconceptions about contraception, and properly educate adolescents on safe sex practices.
Effectiveness of pharmacotherapy for smoking cessation: Umbrella review and quality assessment of systematic reviews
Authors: Melka Alemu Sufa , Chojenta Catherine L , Holliday Elizabeth G , Bali Ayele G , Loxton Deborah J 
Published: July 2020

Abstract
Background : In the long term, smoking cessation can decrease the risk of cancer, stroke, and heart attacks and improve overall survival. This umbrella review aimed to assess the effect of pharmacological interventions on smoking cessation and to evaluate the methodological quality of previously conducted systematic reviews. Methods: Databases including the Cochrane library, PubMed, MEDLINE, EMBASE, CINAHL, PsycINFO, Web of Science, Scopus and Google Scholar were used to retrieve reviews. Systematic reviews that included only randomized controlled trials designed to assess pharmacotherapeutic interventions supporting abstinence from smoking were considered in this umbrella review. The methodological quality of the included reviews was assessed using the Assessment of Multiple Systematic Reviews 2 (AMSTAR 2) tool, which contains 16 domains. Two authors (AM, AB) screened the titles and abstracts of all reviews obtained by the search strategy, assessed the full text of selected articles for inclusion and extracted data independently. Two authors (AM, AB) also performed a quality appraisal independently. The findings of the studies were narrated qualitatively to describe the evidence regarding the effectiveness of pharmacotherapies for smoking cessation. Results: Ten reviews were included in this umbrella review . Most of the reviews included in this review reported that Nicotine Replacement Therapy (NRT), bupropion and varenicline and cytisine were effective for smoking cessation. The combination of a nicotine patch with other nicotine formulations was also more effective than monotherapy. Similarly, the combination of nicotine with the non-nicotine therapy varenicline was found to be more effective than varenicline alone. However, the opioid antagonist naltrexone alone was not found to be effective for smoking cessation nor in combination with nicotine replacement therapy. Based on the AMSTAR 2 rating, one review scored high quality, two scored moderate quality, four scored low quality, and three scored critically low quality. Conclusions: This review revealed that drugs approved by the US Food and Drug Administration (FDA) are effective for smoking cessation. A combination of nicotine patches with other nicotine formulations was also effective for smoking cessation compared to nicotine monotherapy.