bluuebunny/crossref_metadata_2025 huggingface dataset:
Determinantes do desempenho no atletismo
Authors: Aguiar Caio Márcio , Coelho Emerson Filipino , Paula Heber Eustáquio de , Ferreira Renato Melo , Lima Jorge Roberto Perrout de , Werneck Francisco Zacaron
Published: April 2022

Introdução: a avaliação do potencial esportivo é uma etapa importante na descoberta de novos talentos e deve utilizar preditores relevantes do desempenho. Objetivo: investigar a importância atribuída por treinadores aos determinantes do desempenho no atletismo, analisando diferenças entre os tipos de prova. Metodologia: participaram 12 treinadores brasileiros de atletismo (11 homens; 83% de Minas Gerais; 75% com experiência no alto rendimento e 42% com títulos internacionais). Aplicou-se um questionário contendo seis fatores e 51 indicadores do desempenho no atletismo. Os treinadores responderam em relação a importância atribuída aos fatores antropométrico, físico-motor, técnico, tático, psicológico e socioambiental, numa escala Likert (1-nada importante e 5-extremamente importante) e a ordem de importância, considerando do 1º ao 6º mais importante. Avaliaram ainda a importância para o desempenho de velocistas, fundistas, saltadores, lançadores e provas combinadas. Resultados e discussão: a ordem de importância dos fatores de desempenho foi: 1º) Físico-motor, 2º) Técnico, 3º) Psicológico, 4º) Antropométrico, 5º) Tático e 6º) Socioambiental. O fator tático, entretanto, foi o mais importante para os fundistas e atletas de provas combinadas. Conclusão: a opinião dos treinadores revelou que as características físico-motoras, técnicas e psicológicas são, nesta ordem, os principais fatores determinantes do desempenho no atletismo. Porém, é preciso considerar as diferenças observadas em relação aos grupos de provas, pois cada um apresenta particularidades que caracterizam um  perfil específico.
A experiência brasileira na realização de Conferências Nacionais de Segurança Alimentar e Nutricional
Authors: Ramos Flávia Pascoal , Sousa Sara Silva , Santos Sandra Maria Chaves dos
Published: April 2022

As Conferências Nacionais de Segurança Alimentar e Nutricional (CNSAN) integraram um conjunto de instituições participativas no Brasil e nos últimos anos tinham o intuito de estabelecer as prioridades da Política Nacional de Segurança Alimentar e Nutricional (PNSAN) e do Plano Nacional de Segurança Alimentar e Nutricional (PLANSAN). Objetivou-se apresentar um panorama das CNSAN realizadas no Brasil a partir de variáveis selecionadas referentes aos temas, objetivos, formas de organização, normas para deliberação, potencial inclusivo e outputs do processo conferencial. Trata-se de um estudo exploratório com análise documental que utilizou como unidade de análise os atos convocatórios, regimentos e relatórios das CNSAN. Categorizou-se os dados partir de cinco grupos: G1 – Caracterização das conferências; G2 – Forma de organização; G3 – Normas para deliberação; G4N – Potencial inclusivo e G5 – Outputs do processo de conferência. Principais resultados: A maioria das CNSAN objetivou a proposição de políticas públicas. Todas as CNSAN foram organizadas a partir da realização de grupos de trabalhos e plenárias favorecendo a participação-deliberação. Um sistema de cotas foi estabelecido a partir da III CNSAN, ampliando a participação de povos e comunidades tradicionais. Observou-se também que as conferências mobilizaram um grande número de participantes e de municípios envolvidos.
THE PRACTICE OF ILLEGAL HEALTH EQUIPMENT DISTRIBUTION IN INDONESIA REVIEWED FROM BUSINESS ETHICS
Authors: Wilandari Angestika
Published: April 2022

The emergence of illegally distributed medical devices is certainly not without reason. The expansion of access to health insurance has pushed the need for health services for the people in Indonesia. The high demand for health services will be directly proportional to the need for medical devices that are distributed safely and evenly. Geographical conditions and characteristics and demographic conditions in Indonesia are a real challenge for the distribution of medical devices evenly and according to procedures. The responsibility for distributing medical devices is one form of applying business ethics through applicable policies or regulations.

This study examines the practice of distributing medical devices illegally in Indonesia in terms of business ethics using descriptive analysis methods. With limited research time, the study of illegally distributing medical devices does not reflect healthy and ethical activities when viewed from business ethics outside of relaxation of existing regulations.
RISK ANTICIPATION OF THE MUDHARABAH FINANCING (CASE STUDY IN THE CIMB NIAGA SYARIAH BANK AT MATARAM BRANCH)
Authors: Susianti Nurul
Published: April 2022

This study analyzes the risk anticipation on the mudharabah funding in Nusa Tenggara banks, namely CIMB Niaga Syariah. Unlike the other sharia banks, this bank does not apply mudharabah financing in their services. This analysis uses data collection methods and data analysis techniques using descriptive qualitative research with interview respondents. The respondents were the director of the CIMB Niaga Syariah bank and the direct financing division.

Based on the result obtained from interviews and documentation, it shows that the reasons and considerations of the bank not to apply risk anticipation and mudharabah financing are as follows: side streaming, intentional negligence/mistake, and concealment of profits, the funds to be distributed by the bank in the form of mudharabah financing fund from third parties or funds from depositors.
PREFERENCES OF USING QUICK RESPONSE CODE INDONESIAN STANDARD (QRIS) AMONG STUDENTS AS A MEANS OF DIGITAL PAYMENT
Authors: Permadi Yudistira Andi , Wilandari Angestika
Published: April 2022

QRIS is a digital payment instrument that has provided positive signals since it was launched. It is known that the demographics of QRIS users are quite diverse, including students. This study aims to determine students' preferences in Jabodetabek in using QRIS as a means of digital payment. Preference or interest in using QRIS that arises in this study is measured using the following four characteristics: 1) Easiness Characteristic; 2)Usefulness Characteristic; 3) Risk Characteristic, and 4) Trust Characteristic.

The research results by distributing questionnaires conducted showed that of 154 respondents, the majority felt the easiness and benefits of the QRIS. However, even though it is easy and useful, respondents are still cautious and show a lack of trust in using QRIS because it is considered quite risky.
Deep learning for LiDAR-only and LiDAR-fusion 3D perception: a survey
Authors: Wu Danni , Liang Zichen , Chen Guang
Published: April 2022

The perception system for robotics and autonomous cars relies on the collaboration among multiple types of sensors to understand the surrounding environment. LiDAR has shown great potential to provide accurate environmental information, and thus deep learning on LiDAR point cloud draws increasing attention. However, LiDAR is unable to handle severe weather. The sensor fusion between LiDAR and other sensors is an emerging topic due to its supplementary property compared to a single LiDAR. Challenges exist in deep learning methods that take LiDAR point cloud fusion data as input, which need to seek a balance between accuracy and algorithm complexity due to data redundancy. This work focuses on a comprehensive survey of deep learning on LiDAR-only and LiDAR-fusion 3D perception tasks. Starting with the representation of LiDAR point cloud, this paper then introduces its unique characteristics and the evaluation dataset as well as metrics. This paper gives a review according to four key tasks in the field of LiDAR-based perception: object classification, object detection, object tracking, and segmentation (including semantic segmentation and instance segmentation). Finally, we present the overlooked aspects of the current algorithms and possible solutions, hoping this paper can serve as a reference for the related research.
Дослідження процесу розрізування полімерних матеріалів вуглекислотним лазером
Authors: Савченко Ольга
Published: April 2022

У роботі експериментально проаналізовано вплив параметрів лазерного випромінювання СО2-лазера на процес розрізування полімерних матеріалів. Доcлідження процеcу здійcнювалоcь при зміні швидкоcті різання, потужноcті лазерного випромінювання та фокуcної віддалі на чотирьох типах полімерних матеріалів: Акрил, Textures, Lasermax, Satins товщиною 1,2 мм. У результаті аналізу графічних залежноcтей виявлено, що при заглибленні фокуcу «+0,5» та при збільшенні швидкоcті розрізування ширина різу для вcіх матеріалів зменшуєтьcя, оскільки тепло не вcтигає поширитиcь в глибину матеріалу. Зі збільшенням потужності випромінювання ширина різу збільшуєтьcя або ж залишаєтьcя незмінною. Досліджено, що найбільше вимогам лазерного розрізування відповідає полімерний матеріал Акрил, оскільки при лазерній дії практично відcутнє плавлення матеріалу, а відбуваєтьcя випаровування і видалення парів cтиcнутим повітрям, яке подаєтьcя в зону обробки.
Дослідження продуктивності та зручності використання мультимедійних додатків
Authors: Кушнір Катерина Сергіївна , Золотухіна Катерина Ігорівна
Published: April 2022

В роботі представлено результати дослідження продуктивності та зручності використання мультимедійних додатків. Проведено аналіз можливих типових варіантів мультимедійних додатків, технологій їх створення. За розробленою систематизацією тестування додатків, встановлено ланцюг тестування, найоптимальніший для розроблених зразків. Встановлено залежність ваги додатку від кількості мультимедійних елементів та часу завантаження додатку на середньостатистичному пристрої користувача. Узагальнено рекомендації з компонування та тестування типових мультимедійних додатків.
MODELAGEM MATEMÁTICA E A TECNOLOGIA: BREVES CONSIDERAÇÕES
Authors: Oliveira Paulo ALexandre , Santos Francisco Mesquita dos
Published: April 2022

O presente artigo consta de uma abordagem descritiva qualitativa, sobre o desenvolvimento da Modelagem Matemática (M.M.) ocorrido nos últimos 30 anos, no Brasil e no cenário internacional. Utilizou-se como fonte de pesquisa os artigos acadêmicos e livros encontrados através do buscador google acadêmico utilizando as palavras chaves: Modelagem Matemática, Ensino da matemática, NTICs, computador e internet. Os principais objetivos da pesquisa foram investigar o ensino da matemática através da modelagem matemática na educação básica, fazer  levantamentos e mapeamentos da principais conferências, congressos e seminários que aconteceram nos dois cenários sobre a temática, e ainda, levantar como foram utilizadas as Novas Tecnologias da Informação e Comunicação (NTICs). Conclui-se que a modelagem matemática é uma fonte rica para o ensino e a aprendizagem de matemática na sala de aula, porque relaciona o conteúdo matemático aos problemas cotidianos e as NTICs tem potencial para facilitar a aprendizagem dos alunos, aumentando o interesse dos alunos, conforme estabelecido na literatura.
NUTRIÇÃO POTÁSSICA E MAGNESIANA EM BANANEIRA ‘GRAND NAINE’ (4º CICLO), IRRIGADA COM ÁGUA CALCÁRIA NO SEMIÁRIDO MINEIRO
Authors: Ferreira Sobral Kivison Raysllan , Dourado Pacheco Dilermando , Silva Tatiane Carla , Ferreira Alcântara Sergio , Gonçalves Brito Cleber , Araújo da Cruz Fernando
Published: April 2022

O balanço mineral adequado entre Ca:Mg:K é um dos pilares para que bananeiras expressem máximo vigor vegetativo e produtivo. O objetivo com esse trabalho foi testar em bananeira, cultivar Grand Naine, as doses de 0, 60, 120, 180 e 300 g/família/trimestre de MgSO4 combinadas às de 0, 40, 80, 120 e 160,0 g/família/mês de KCl, em cultivo irrigado com água de natureza calcária em Januária, MG. Foram medidas as características de crescimento vegetativo, como altura de plantas, área foliar e circunferência de pseudocaule; e reprodutivo, como massa de cacho e de pencas. O Mg, nas doses testadas, não afetou a maioria das características estudadas. As maiores doses de K propiciaram bananeiras Grand Naine mais produtivas. As doses recomendadas para máximas produções de cacho, próximas a 59 ton.ha-1.ciclo-1 no quarto ciclo, ocorreram com aplicações de 1,139 ton.ha-1.ano-1 de K2O. A capacidade produtiva e altura das bananeiras apresentaram elevado grau de dependência, sendo as plantas mais altas as mais produtivas.
NARRATIVAS DE CURURUPU: O SOBRENATURAL NA LITERATURA ORAL
Authors: Araújo Naiara Sales , Almeida Lorena Kelly Silva
Published: April 2022

A literatura oral brasileira compreende vasta gama de forma e conteúdo comumente associada ao folclore. Há também narrativas que contam experiências particulares de seus narradores com o sobrenatural, mas que não se integram ao corpus de literatura oral brasileira em sua totalidade, mas às comunidades específicas de seus contadores. Serão analisadas, neste artigo, narrativas do interior do Maranhão, em que estruturação e conteúdo temático podem ser tratados sob um viés de estudos teórico-literários. Para fundamentar este artigo, utilizaremos estudos sobre tradição oral, organizados por Queiroz (2011), literatura oral brasileira, feitos por Cascudo (2012) e sobrenatural literário, por Lovecraft (1973).

Palavras-chave: Literatura oral, Sobrenatural, Cururupu.
ALIMENTAÇÃO NO PRIMEIRO ANO DE VIDA: COMPREENDER PARA INTERVIR
Authors: Da Silva Maciel Thais , Da Cruz Della Torre Ana Clara , Vasconcelos Bastos Marques Débora , Renata Pereira de Brito Tábatta , Braga Lima Daniela
Published: April 2022

A alimentação no primeiro ano de vida é essencial; esse período é caracterizado por rápido crescimento, desenvolvimento e formação de hábitos alimentares. Este estudo caracteriza-se por ser do tipo descritivo, exploratório, de corte transversal, e teve como objetivo avaliar o consumo alimentar de crianças no primeiro ano de vida que frequentavam as Unidades Básicas de Saúde. A coleta de dados foi realizada pela aplicação de questionário semiestruturado com variáveis sociodemográficas e antropométricas da mãe e do estado nutricional da criança.  O software SPSS (versão 22.0) foi utilizado para as análises estatísticas. Para todos os testes adotou-se o nível de significância de 5%. A prevalência do aleitamento materno foi de 66,64% e 23,64% crianças apresentavam excesso de peso. O consumo de alimentos saudáveis foi considerado satisfatório, em especial quando se comparou o sexo feminino ao masculino, com exceção do consumo de verduras, que foi baixo em ambos os sexos (14,13% feminino e 13,04% masculino). Os achados evidenciaram uma introdução   importante de alimentos classificados como não saudáveis. O padrão de consumo alimentar inadequado identificado pode comprometer a saúde da criança em curto e longo prazos. Faz-se necessário priorizar atividades de promoção e apoio à alimentação adequada para crianças na primeira infância.
CONHECIMENTO DA POPULAÇÃO DE APARECIDA DE GOIÂNIA – GOIÁS SOBRE ENTEROPARASITOSES, SUAS FORMAS DE TRANSMISSÃO, SINTOMATOLOGIA, DIAGNÓSTICO E PROFILAXIA.
Authors: Junio dos Santos Leandro , Peixoto Soares Nayane , Sousa Campos Eude , Magalhães Mara Rúbia , Silva Antônio Marcos , Rodrigues da Silva Jeferson , Mourão Querido Juliana , De Souza Vieira Vanessa
Published: April 2022

As enteroparasitoses são doenças causadas por parasitas intestinais, as quais são endêmicas de países subdesenvolvidos ou em desenvolvimento, sendo representadas como um dos principais problemas de saúde pública. O Brasil é um país que enfrenta este problema, por apresentar um grande déficit de infraestrutura, saneamento básico e uma ineficiente educação sanitária, o que favorece a proliferação destas doenças. Conhece-las e sua nosologia é fundamental para uma eficiente prevenção. Assim, este estudo objetivou fazer um levantamento do conhecimento da população de Aparecida de Goiânia – Goiás sobre estas patologias, suas formas de transmissão, sintomatologia, diagnóstico e profilaxia, para mensurar a capacidade desta população em se proteger destas doenças através de medidas preventivas básicas. Para tanto, foi aplicado um questionário estruturado a uma amostra da população e verificou-se que 65% dos entrevistados não conheciam as parasitoses intestinais, 46% deles desconheciam as vias de transmissão, 43% dos participantes não sabiam quais são as profilaxias, e 89% dos entrevistados declararam nunca terem recebido informações dos órgãos de saúde da cidade sobre as parasitoses intestinais. Concluiu-se, que é necessário planejar ações que visem ofertar informações à população desta região e suas características, pois, as pessoas poderão se prevenir com maior eficácia em relação a estas patologias. 

Palavras-chave: Parasitismo; Parasitoses Intestinais; Saúde Pública.
"Gravitationally Lensed Gravity" from a Spacetime Perspective
Authors: Boenke Andreas
Published: April 2022

A gravitational lens is mass-curved spacetime. Light that propagates freely, locally always on the fastest way, follows curved paths in it. The same applies to all effects propagating with the speed of light, also to gravity itself. They all have to follow the curvature of spacetime. A gravitational lens not only enhances the light from background objects but concurrently also their gravitational effect ! The "Gravitationally Lensed Gravity" (GLG) is a still scarcely noticed peculiar feature of general relativity. In [1] I presented a thought experiment to make the existence of this effect plausible. Here these considerations are described in terms of future and past light cones or null cones commonly used in relativity theory to illustrate the causal structure of spacetime. In the framework of general relativity, the GLG effect can be understood as a consequence of the folding of the past null cone by a gravitational lens. Starting from the basic ideas of the theory, the terms are introduced and applied. The extensive description on textbook level should be understandable also for beginners. In order not to obstruct the view on the essential physical relations, I avoid a mathematical formalism and use instead diagrams and figures, based on realistic numerical calculations, to reinforce my logical argumentation. Experts will recognize many long-known facts, but may still be surprised by the resulting conclusions. First, I present some particular aspects of the historical evolution of the concept of gravitational lensing and give a brief overview of the work of other authors on the subject GLG. I then explain the limitations of the applicability of the "Newtonian Limit" and move on to the key role of the speed of gravity in understanding GLG. Finally, I use a simple example to illustrate the possible significance of the GLG effect. With this work I intend to elicit greater interest in "Gravitationally Lensed Gravity" and to initiate a broader discussion about it.
A Sensitive Analysis of Drivers and Impact of Deforestation in Uganda's Virgin Tropical Rainforests Using Regression Analysis: Efforts Towards Zero Deforestation by 2030
Authors: Bamwesigye Dastan , Yeboah Evans , Šafařík Dalibor
Published: April 2022

Uganda possesses natural rainforests that serve enormous environmental ecosystems and biodiversity services. Moreover, the country is known for its various tropical rainforest hardwoods, birds, and animal species. Over the years, the trend in the natural forest land has declined at an alarming rate; hence need to investigate the possible drivers. The loss of such biodiversity and ecosystems risks desertification and extreme climatic condition. As the world moves towards Zero Deforestation 2030, understanding the determinants of deforestation and forest degradation is paramount. Therefore, the main objective of this study was to understand the impact and relationships between net forest conversion, energy emission, agriculture, and forest production of Roundwood. We used data from FAO for the period 2004-2016. Using the ADF and KPSS test, we checked for the unit root presence in the variables. Also, the study used two different regression models: multiple linear regression and dynamic linear model. To analyze the determinants of deforestation, we used net forest conversion in Uganda. There was 94 % variation in the dependent variable (Net Forest conversion). The outcome of the dynamic linear regression showed that agriculture and energy emission positively impact net forest conversion. Based on our findings, this study recommended the modernization of agriculture by the government of Uganda to stop cutting down the forests on a big scale. Also, the study suggested that the government strictly legislate Roundwood and wood fuels/charcoal and firewood to reduce huge dependency on forests toward Zero-Deforestation by 2030. If well-structured and implemented, government policies could solve the unnecessary over dependency on the rainforest, the heart of the region's climatic conditions.
Causal Effects of Tea Intake on Multiple Types of Fractures: A Two-Sample Mendelian Randomization Study
Authors: Gu Peng , Pu Bin , Li ShiJie , Tan NengXian , Luo LieLiang , Feng JunMing , Zeng ZhanPeng , Zheng XiaoHui
Published: April 2022

Fracture is a global public health disease. Bone health and fracture risk have become the focus of public and scientific attention. Observational studies have reported that tea consumption is associated with fracture risk, but the results are inconsistent. The present study was conducted to evaluate whether tea consumption was causally associated with the risk of bone fracture through two-sample Mendelian Randomization (MR) analysis. We included a large genome-wide association study (GWAS) associated with tea consumption of 447,485 individuals and analyzed the effects of genetic instruments on fractures using fracture cases from the UK Biobank dataset (n=361,194). Inverse variance weighted (IVW) indicated no causal effects of tea consumption on fractures of the skull and face, shoulder and upper arm, hand and wrist, femur, calf, and ankle (odds ratio=1.000, P=0.881; OR=1.000, P=0.857; OR=1.002, P=0.339; OR=0.997, P=0.054; OR=0.998, P=0.569, respectively). Consistent results were also found in MR-Egger, weighted median, and weighted mode. Our research provided evidence that tea consumption is unlikely to affect the incidence of fractures.
Optimalisasi Sistem Antrian di Farmasi Rawat Jalan Rumah Sakit Grha Permata Ibu dengan Metode Lean Hospital
Authors: Alfatiyah Rini , Bastuti Sofian
Published: April 2022

Grha Permata Ibu Hospital is one of the major hospitals in Depok with adequate facilities in its services. One of the main factor in hospital services is drug serviceat the pharmacy. Often the problema in drug service is the long waiting time from drug provision, therefore this research was conducted to identify the waste that occurs in drug services in outpatient pharmacies using the Lean Hospital method by making Value Stream Mapping (VSM) and Process Activity Mapping (PAM). This research  was also conducted using quantitative research method to see the optimization in the queuing system in drug services in outpatient pharmacies. Meanwhile the resulto f the observation and calculation of the queuing system in drug services at the pharmacy are that the speed of prescription arrival is 0.297 minutes, for the calculation of the speed of prscription sevice is 3.366 minute per patient, the expected waiting time in the system is 0.32 minutes per patient waiting on the queue is 0.029 minutes per patient. Base on the result of the percentage of Process Cycle Efficiency (PCE), it is known that the efficiency of activity time in drug services in outpatient pharmacies has increased 10.8% from the eclusive system. The resulto f these observations made proposal for improvement in drug services in outpatient pharmacies
LA ACCIÓN DE RESPONSABILIDAD EFECTUADA POR LOS INVERSORES CUALIFICADOS CON MOTIVO DEL FOLLETO EMITIDO EN LAS OFERTAS PÚBLICAS DE SUSCRIPCIÓN DE ACCIONES DE NATURALEZA MIXTA
Authors:   Universidad Miguel Hernández de Elche, Soler Samper Carlos
Published: April 2022

El Tribunal de Justicia de la Unión Europea (en adelante “TJUE”) se pronunció el pasado mes de junio sobre uno de los procedimientos judiciales de máxima actualidad, tal y como es el litigio existente entre la entidad Bankia (actualmente Caixabank) y la Unión Mutua Asistencial de Seguros. En concreto, dilucidó algunos aspectos que precisan un mayor desarrollo normativo y jurisprudencial, esto es: la posibilidad de llevar a cabo una acción de responsabilidad por parte de los inversores cualificados por el folleto emitido para una oferta pública de suscripción de acciones. Asimismo, se pronunció sobre la posibilidad de valorar el grado de conocimiento de los inversores cualificados de la situación económica del emisor de la oferta pública de suscripción de acciones al margen del folleto y en función de sus relaciones jurídicas o mercantiles con dicho emisor.
EL CASH-POOLING EN EL CONTEXTO DE OPERACIONES DE FINANCIACIÓN
Authors:   DLA Piper Spain, Herrero Mazarío César ,   (UPCO-ICADE, Rubio Medrano Alberto ,   DLA Piper Spain
Published: April 2022

El presente artículo realiza un análisis sintético de las precauciones que podrían adoptarse en el contexto de una operación de financiación que pretenda ser concedida a una o varias filiales de un grupo societario en el que se desarrollen actividades de cash-pooling y, en concreto, qué previsiones contractuales —dejando al margen cualesquiera consideraciones fiscales— habrían de tenerse en cuenta en dicho contexto, todo con el fin de intentar asegurar una cobertura satisfactoria de cualesquiera intereses en juego que resulten en cada caso dignos de protección.
LA INVERSIÓN EXTRANJERA EN ESPAÑA
Authors:   Universidad Miguel Hernández de Elche, Ortega Giménez Alfonso , Castellanos Cabezuelo Ángela ,   COEX INTERNATIONAL TRADE
Published: April 2022

En las últimas décadas, España ha experimentado un notable desarrollo social y económico, quizá uno de los más espectaculares del mundo, pero no sería hoy lo que es sin el aporte y la importante contribución de la inversión extranjera. A lo largo de los años la inversión extranjera ha sido importante cuantitativa y cualitativamente y se ha manifestado en todos los ámbitos económicos y sociales como ser en la internacionalización, la transferencia de conocimiento, I+D+i, el incremento de exportaciones, a mejora de la competitividad, la formación, desarrollo y políticas de gestión de recursos humanos, etc. España continúa siendo un país atractivo para la inversión extranjera, al igual que lo son sus empresas. La inversión extranjera tiene un impacto local en términos de empleo, cifra de negocios, gastos de personal, inversión bruta en activos materiales que se va incrementado gradualmente cada año.
Measurement of Cement In-Situ Mechanical Properties with Consideration of Poroelasticity
Authors: Meng Meng , Frash Luke , Carey J. William , Li Wenfeng , Welch Nathan
Published: April 2022

Accurate characterization of oilwell cement mechanical properties is key to establishing long-term wellbore integrity. The most widely used method is curing cement in an autoclave, demolding, cutting, and transferring it to a triaxial compression apparatus. The drawback of this traditional technique is that the mechanical properties are not measured under in-situ curing conditions. In this paper, we developed a high-pressure and high-temperature vessel to hydrate cement under downhole conditions and then directly measure cement Young’s modulus and Poisson’s ratio without cooling or depressurization. We validated the setup with water and obtained a reasonable bulk modulus of 2.37 GPa under elevated pressure. We proposed a poroelastic method to calculate cement elastic properties accounting for boundary stiffness and changing pore pressure. We compared the in-situ measurements with traditional triaxial compression tests conducted on the same specimen after retrieval from the vessel. The results show that in-situ measured Young’s modulus is more than double, and the Poisson’s ratio is 20 to 100% higher than that measured by the traditional triaxial method. One mechanism could be that the depressurization and repressurization process in those traditional tests may generate microdefects or induced stresses that weaken cement mechanical properties. Finally, we applied our mechanical properties measurements to cement wellbore integrity analysis by using a thermoporoelastic model. We found that the initial state of stress plays a significant role in maintaining wellbore integrity. With only mechanical properties differences considered, the estimation with traditional measured properties may mistakenly show cement is safe under some pressure and temperature perturbations.
Cystatin C: a potential predictor for acute kidney injury in patients with community acquired pneumonia
Authors: Wan Xin , Chen Dawei , Jiang Linglin , Ma Mengqing , Huang Wenjuan , Tan Yan , Ji Xiaobing , Pan Binbin
Published: April 2022

Background: Acute kidney injury (AKI) is common in patients with community acquired pneumonia (CAP), and associated with poor prognosis. Cystatin C had been demonstrated to be a biomarker for the early detection AKI in in several other clinical settings. Therefore, in this study we evaluated whether AKI in patients with CAP could be well predicted by serum Cystatin C within 24 hours after admission.Methods: Univariate and multivariate logistic regression analyses were used to investigate independent factors of AKI in patients with CAP. Prediction performance of all independent factors for AKI was measured using area under the receiver operating characteristic (ROC) curves (AUCs).Results: 2716 patients with CAP were eligible in this study, and 766 (28%) patients developed AKI. After multivariate logistic regression analysis, Cystatin C, albumin, uric acid, platelet count, white blood cell count, CURB-65 score, and acute respiratory failure were independent factors for AKI in patients with CAP. The maximum AUC was reported for serum Cystatin C within 24 hours after admission. Cystatin C had an AUC of 0.81 (95% CI: 0.79–0.83, P < 0.001) for predicting AKI, with an optimal cut-off value of 1.37 mg/L, computing 68% sensitivity, 80% specificity, 57% positive predictive value and 86% negative predictive value. In the stratification analyses, Cystatin C still had a good performance for predicting AKI in all the subgroups (AUCs: 0.69-0.84).Conclusions: The level of serum Cystatin C within 24 hours after admission appears to be a good biomarker for predicting of AKI in patients with CAP.
Empirical Validation of Effort Measures in Children and Adults: Divergent Validity, Familial Similarity, and Predictive Validity for Psychopathology
Authors: Nguyen Nicholas , Hess Jonathan L. , Orman Sarah Van , Forken Patricia , Blatt Steven D. , Fremont Wanda P. , Faraone Stephen V. , Glatt Stephen J.
Published: April 2022

Background: Aberrant reward behavior is known to associate with various forms of psychopathology. ‘Effort’, as one component of reward, is defined as the perception of the value of the prospective outcome as a function of its magnitude and the perceived costs of the physical or cognitive labor required to obtain it. This study sought to empirically validate the ‘effort’ construct via behavioral assessments and self-reports. Methods: Participants were 1536 children and 1270 of their parents. ‘Effort’ was assessed via the Effort Expenditure for Rewards Task (EEfRT). Child psychopathology was measured using the Child Behavior Checklist; adult psychopathology was measured using the Adult Self Report. Multitrait-multimethod matrices were used to demonstrate the divergent validity of ‘effort’ measures from other measures of reward behavior. We used linear regression models to assess familial transmission of ‘effort’, and zero-inflated negative binomial regression models to analyze the relationship between ‘effort’ and psychopathology and the moderating effects of sex. Results: For adults and their children, measures of ‘effort’ did not correlate with any other measures of reward constructs, suggesting divergent validity. Measures of ‘effort’ were positively correlated between siblings, while correlations between children and adults were not significant. In children, significant interactions were observed between sex and ‘effort’ valuation, in association with anxiety and thought problems, consistent with previous work. The moderating effects of sex had the greatest effect at low ‘effort’, with females having higher severity of psychopathology than males on average. Conclusions: This study identified the ‘effort’ component of reward behavior as a significant correlate of multiple psychopathologies, moderated by sex. These findings provide further evidence supporting ‘effort’ as a relevant construct for understanding psychopathology. The results consistently demonstrate aberrant ‘effort’ is associated with greater anxiety and thought problems. The presence of sibling-sibling correlations accompanied by the absence of parent-child correlations suggests a lack of continuity between child and parent measures and suggests that further evaluation and refinement of age-appropriate measures of effort is warranted.
Identification of Five Novel Variants of ADAR1 in Dyschromatosis Symmetrica Hereditaria by Next-generation Sequencing
Authors: Ma Qian , Che Lingyi , Chen Yibing , Duan Juan , Gu Zhuoyu
Published: April 2022

Dyschromatosis symmetrica hereditaria (DSH) is a rare autosomal dominant inherited pigmentary dermatosis characterized by a mixture of hyperpigmented and hypopigmented freckles on the dorsal aspect of the distal extremities. To date, pathogenic mutations causing DSH have been identified in the adenosine deaminase acting on RNA1 gene (ADAR1), which is mapped to chromosome 1q21. The present study aimed to investigate the underlying pathological mechanism in 14 patients with DSH from five unrelated Chinese families. Next-generation sequencing (NGS) and direct sequencing were performed on a proband with DSH to identify causative mutations. All coding, adjacent intronic, and 5′- and 3′-untranslated regions of ADAR1 were screened, and variants were identified. These mutations consisted of three missense mutations (NM_001025107: c.716G > A, NM_001111.5: c.3384G > C, and NM_001111.5: c.3385T > G), one nonsense mutation (NM_001111.5:c.511G > T), and one splice-site mutation (NM_001111.5: c.2080-1G > T) located in exon 2, exon 14, and the adjacent intronic region according to recommended Human Genome Variation Society (HGVS) nomenclature. Moreover, using polymerase chain reaction and Sanger sequencing, we identified five novel ADAR1 variants, which can be predicted to be pathogenic by in silico genome sequence analysis. Among the mutations, the missense mutations had no significant effect on the spatial structure of the protein, while the stop codon introduced by the nonsense mutation truncated the protein. Our results highlighted that the advent of NGS has facilitated high-throughput screening for the identification of disease-causing mutations with high accuracy, stability, and specificity. Five novel genetic mutations were found in five unrelated families, thereby extending the pathogenic mutational spectrum of ADAR1 in DSH and providing new insights into this complex genetic disorder.
Nonlinear Dynamics of Yaw Motion of Surface Vehicles
Authors: Kambali Prashant , Nataraj C.
Published: April 2022

The dynamics of surface vehicles such as boats and ships, when modeled as a rigid body, is complex as it is strongly nonlinear and involves six degrees of freedom. We are particularly interested in the steering dynamics decoupled from pitching and rolling as the basis of our research on unmanned boats and autonomy. Steering dynamics has been traditionally modeled using a linear Nomoto model, which however does a poor job of capturing real nonlinear phenomena. On the other hand, there exists a somewhat simplified three degree of freedom nonlinear model derived by Abkowitz, which, although better than the Nomoto model, is still too intractable for analytical methods. In this paper, we derive a nonlinear single degree of freedom model with a cubic nonlinearity that is conditionally equivalent to the Abkowitz model. Using this model we analyze the yaw motion of an autopilot ship with a PD controller under the influence of an external wave force.
Analytical and numerical investigations of the nonlinear dynamics are performed using parameters of an example container ship for various sea states. We employ the harmonic balance method to investigate the nonlinear frequency response of the ship under the influence of different parameters and demonstrate that the external wave force is balanced by stiffer ships. We also numerically investigate the nonlinear dynamic behavior to understand the different mechanisms involved in transitions from periodic to chaotic behavior under the influence of various parameters and different sea state conditions. The analysis reveals periodic response of the ship for a calm sea state. It is noteworthy that for lower values of linear stiffness, higher values of nonlinear stiffness, and higher values of external wave force corresponding to higher sea states, the bifurcation structure reveals mixed dynamic response in which periodic solutions evolve into period doubled, period tripled, and chaotic like solutions even with high levels of damping. This work aims to demonstrate the utility of a simple nonlinear model and nonlinear behavior of steering motion of the ships to gain better insight into the nonlinear dynamics of autonomous surface vehicles. Further, the model stands out as an accessible nonlinear model for steering motion of the ship adequately representing the dynamics of real ships. It hence provides a basis for much improved controller design to implement smarter autopilots on manned ships but also aids in the development of robust autonomy in surface vehicles.
Causal complexity of environmental pollution in China: A province-level fuzzy-set qualitative comparative analysis
Authors: Chen Yang , Hong Jingke , Tang Miaohan , Zheng Yuxi , Qiu Maoyue , Ni Danfei
Published: April 2022

Environmental problems are endowed with the causal complexity of multiple factors. Traditional quantitative research on the influencing mechanism of environmental pollution has tended to focus on the marginal effects of specific influencing factors but generally neglected the multiple interaction effects between factors (especially three or more). Based on the panel data of 30 Chinese provinces between 2011 and 2017, this study employs fuzzy set qualitative comparative analysis (fsQCA) - which can provide a fine-grained insight into causal complexity of environmental issues - to shed light on the influencing mechanism of environmental pollution. The results show that there are several different configurations of pollution drivers which lead to high pollution or low pollution in provinces, confirming the multiple causality, causal asymmetry, and equifinality of environmental pollution. Further, the combination effect of advanced industrial structure, small population size, and technological advance is significant in achieving a state of green environment compared to environmental regulation factors. In addition, spatiotemporal analysis of the configurations indicates that strong path dependencies and spatial agglomeration exist in current local environmental governance patterns. Finally, according to our findings, targeted policy recommendations are provided.
Influence of pH on moisture-absorbing swelling cracks of red layer in central Sichuan and its micro-mechanism
Authors: Huang Kang , Yu Fei , Zhou Zhe , Tong Kaiwen , Zhang Wei , DAI Zhangjun , Chen Shanxiong
Published: April 2022

In this study, the characteristics of self-absorption cracking and its micro-mechanism in the dry state of red mudstone in central Sichuan in the southwestern region were examined using a self-designed water absorption device combined with the digital speckle correlation method (DSCM), scanning electron microscopy, X-ray diffraction experiments, mercury intrusion experiments, and other methods. The results indicated theta compared with an alkaline environment, an acidic environment resulted in the self-absorption and cracking of mudstone. The maximum water absorption rate of mudstone and fracture rate in a pH of 3 were determined as 15.77 and 18.909%, respectively; whereas for pH = 11, they were 11.71 and 7.111%, respectively. In the acidic environment, the maximum combined displacement value and maximum principal strain value of mudstone self-priming and swelling evolution were both greater than in an alkaline environment. Simultaneously, in the former, the moisture absorption failure characteristics of mudstone exhibited increased swelling strain zones and swelling cores. The three possible mechanisms by which pH affects the expansion of mudstone hygroscopic fissures were proposed: hydration-expansion softening, adsorption-wedge failure, and humidity stress field. However, it was found that the solutions with different pH values may affect these three microscopic mechanisms through the following four physical or chemical processes: mineral dissolution, ion absorption and exchange, particle association, and pore change. The results of this study are expected to be of significance and aid in roadbed design, tunnel support, slope treatment, and other projects in the southwest region.
Pathological and Molecular Investigation of Canine Distemper Virus: Phylogenetic analysis of co-circulating genetic lineages based on H and F genes
Authors: Karapınar Zeynep , İLHAN Fatma , USTA Mustafa , Timurkan Mehmet Özkan
Published: April 2022

Canine distemper virus (CDV) is a multi-systemic, highly contagious virus that infects a wide variety of carnivore species, ranging from subclinical to fatal disease. In this study, dogs with clinically suspected Canine distemper were examined by reverse transcriptase-polymerase chain reaction (RT-PCR), histopathology and immunohistochemistry. Phylogenetic analysis was performed using the obtained partial H and F gene sequences and the sequences were compared with CDV strains obtained from the GenBank. Histopathologically, characteristic intracytoplasmic and/or intranuclear inclusion bodies were observed in the CNS, lung, stomach, small intestine, liver, kidney, and spleen with encephalitis, interstitial/bronchointerstitial pneumonia, gastroenteritis. In addition, CDV antigens were detected in all tissues with characteristic histopathological findings of CDV antigens were detected in all tissues with characteristic histopathological findings of Canine Distemper. The antigens were more intense in bronchial and bronchiolar with interstitial and bronchointerstitial pneumoni and inclusion bodies, syncytial cells. It was determined with the phylogenetic map created at the end of the sequence analysis that European and Arctic strains are circulating together in the region.
Factors Influencing Wait and Watch Management for Primary Chronic Subdural Hematoma: A Retrospective Case–control Study
Authors: Zhang Xinjie , Sha Zhuang , Gao Chuang , Tian Ye , Wei Huijie , Liu Xuanhui , Xiang Tangtang , Wang Dong , Quan Wei , Yang Chaohua , Huang Jinhao , Zhang Jianning , Jiang Rongcai
Published: April 2022

Prognostic factors in patients with primary chronic subdural hematoma (CSDH) taking the natural course are unclear. To identify independent influencing factors of wait-and-watch management, a case–control study of moderate CSDH patients using wait-and-watch as monotherapy in a single center from February 2014 to November 2021 was conducted. A total of 39 patients who responded to wait-and-watch management (cases) and 24 nonresponders (controls) matched for age, sex, height, weight, MGS-GCS (Markwalder grading scale and Glasgow Coma Scale), and bilateral hematoma were included. Demographics, blood cell counts, serum biochemical levels, imaging data, and relevant clinical features at baseline were collected. Significant differences between cases and controls were found in the hematoma volume, ability to urinate, maximal thickness of the hematoma, and hypodensity of the hematoma in univariate analysis. Hypodense hematoma and hematoma volume were independently associated with the outcome in multivariate analysis. Combining these independently influencing factors revealed an area under the receiver operator characteristic curve of 0.741 (95% CI: 0.609-0.874, sensitivity = 0.783, specificity = 0.667). These findings may contribute to the early detection of patients with moderate CSDH who may respond to wait-and-watch strategies. Although wait-and-watch tactics could work sometimes, medical interventions, including drug treatment, should be recommended in the clinic.
Prevalence and associated risk factors of abdominal obesity among civil servant women in Addis Ababa, Ethiopia, 2021: institutional based cross- sectional study
Authors: Gebretsadik Solomon , Worku Ayele , Kassie Genanew
Published: April 2022

Background: Abdominal obesity remains to be a major public health problem connected to an increased risk of disease, disability, poor quality of life, and increased health-care costs. It has been also related to metabolic syndrome, like hypertension, cardiovascular disease, diabetes, and other non-communicable diseases. Therefore, the goal of this study was to determine the prevalence of abdominal obesity and associated risk factors among female civil servants in Addis Ababa, Ethiopia, 2021.Method and materials:An institutional based cross-sectional study was undertaken from 31th of March to 15th of April, 2021.A two stage random sampling techniquewas employed to select 451 study participants. Data was edited, coded and entered into Epi data version 3.1 and then exported to SPSS version 21 for analysis. Descriptive data analysis was used to present the distribution of study variable.Bivariable and multivariable analysis were used to assess the relationship between independent variables and abdominal obesity. The level of statistical significance was declared at p-value less than 0.05. Result: The prevalence of abdominal obesity by waist circumference was found to be 29.5 %(95% CI: 25.39-33.6%). In multivariable logistic regression model age group 29-37 years [AOR= 2.553, 95% CI: (1.237-5.271)], age group 38-46 years [AOR=4.027, 95% CI: (1.360-11.925)], age group 47-55 [AOR=7.008, 95% CI: (1.463-33.578)], being married [AOR= 4.736, 95% CI: (2.290-9.798)] consumption of meat 1-4 times per week[AOR=2.341, 95% CI: (1.215-4.509)], consumption of meat >=5 per week [ AOR= 5.257, 95% CI: (2.068-13.364)], and having lunch daily[AOR= 0.331, 95% CI: (0.136-0.804)] were significantly associated with abdomial obesity. Conclusion: Prevalence of abdominal by waist circumference was 29.5%..Age, being married, high consumption of meat, having lunch daily were identified as a risk factors for abdominal obesity. So, awareness creation about age induced abdominal obesity for older and middle age group is needed. Likewise, promotion to use diversified food rather than consuming meat based diet can reduce the risk of abdominal obesity in combination with other nutrition intervention methods.