bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evolución del estado nutricional en estudiantes de educación física, asociado al nivel de riesgo cardiovascular, los hábitos alimentarios y el nivel de actividad física
Authors: Antoniazzi Luis Daniel , Aballay Laura Rosana , Fernández Alicia Ruth , Fiol de Cuneo Marta 
Published: December 2020

RESUMEN
INTRODUCCIÓN: La prevalencia de sobrepeso y obesidad aumenta en estudiantes universitarios como consecuencia de la modificación de sus hábitos alimentarios y de su nivel de actividad física. El objetivo general del presente trabajo fue analizar la relación entre el estado nutricional de estudiantes de Educación Física y el nivel de actividad física, el riesgo cardiovascular y sus hábitos alimentarios, durante los primeros tres años de la carrera.
MÉTODO: Estudio observacional, descriptivo y de corte longitudinal. Se estudiaron 67 estudiantes. Para valorar el estado nutricional y el riesgo cardiovascular se midieron el índice de masa corporal (IMC) y la circunferencia de cintura (CC), respectivamente. Para indagar sobre los hábitos alimentarios se utilizó una encuesta basada en las recomendaciones de las guías alimentarias para la población argentina. Para estimar el nivel de actividad física se usó el Cuestionario Internacional de Actividad Física IPAQ, formato corto, versión en español.
RESULTADOS: Los estudiantes con preobesidad, obesidad y riesgo cardiovascular elevado aumentaron durante el transcurso del estudio. Por su parte, las conductas alimentarias saludables y el nivel de actividad física alto en mujeres disminuyeron. El IMC mostró una correlación positiva con la CC. La selección alimentaria saludable en varones se mostró correlacionada con el IMC.
CONCLUSIONES: La evolución del cursado de la carrera de Educación Física indicó un aumento progresivo de los factores asociados a la obesidad. Estos resultados permitirían direccionar y promover acciones legislativas que actualicen la currícula de la carrera de Educación Física, conforme a las necesidades sociales y sanitarias de esta población.
Lithium-ion Battery Degradation Mechanisms and Failure Analysis Methodology
Authors: Sood Bhanu , Severn Lucas , Osterman Michael , Pecht Michael , Bougaev Anton , McElfresh David 
Published: December 2020

Abstract
A review of the prevalent degradation mechanisms in Lithium ion batteries is presented. Degradation and eventual failure in lithium-ion batteries can occur for a variety of dfferent reasons. Degradation in storage occurs primarily due to the self-discharge mechanisms, and is accelerated during storage at elevated temperatures. The degradation and failure during use conditions is generally accelerated due to the transient power requirements, the high frequency of charge/discharge cycles and differences between the state-of-charge and the depth of discharge influence the degradation and failure process. A step-by-step methodology for conducting a failure analysis of Lithion batteries is presented. The failure analysis methodology is illustrated using a decision-tree approach, which enables the user to evaluate and select the most appropriate techniques based on the observed battery characteristics. The techniques start with non-destructive and non-intrusive steps and shift to those that are more destructive and analytical in nature as information about the battery state is gained through a set of measurements and experimental techniques.
PERANCANGAN APIKASI MOBILE E-COMMERCE BERBASIS ANDROID PADA TOKO SEMBAKO BERKAH JAYA DIERA COVID-19
Authors: Abdul Aziz Akhmad , Fajar K Fitrah Satrya 
Published: December 2020

Toko Sembako Berkah Jaya adalah salah satu toko yang menjual berbagai sembako yang berada dikota Bogor, Jl.Asrama Palad Blok B No.10, RT.2/RW.5 Cirimekar, Cibinong. Sistem yang sedang berjalan saat ini masih dinilai belum efektif dalam hal pemasaran apa lagi dimasa pandemi seperti ini, pelanggan selalu menginginkan kemudahan ataupun kecepatan informasi yang relevan untuk memudahkan segala aktivitasnya tanpa harus keluar rumah, salah satunya pemesanan ataupun pembelian sembako pada Toko Sembako Berkah Jaya. Penelitian ini bertujuan membantu pelanggan agar dapat berbelaaknja dimana pun dan kapan pun yang diinginkan secara flexible tanpa harus keluar rumah dan pergi ketoko tersebut. Jadi maksud dari penelitian ini untuk mengurangi terjadinya penularan covid-19 maka saya ingin membuat perancangan aplikasi mobile e-commerce berbasis android untuk penjualan sembako pada Toko Sembako Berkah Jaya. Dalam membangun sistem ini penulis menggunakan metode prototype dimana teknik pengumpulan data yang dilakukan adalah wawancara dan studi pustaka. Sedangkan dalam membantu analisis dan perancangan sistem menggunakan Unified Modeling Language dengan dibuatnya aplikasi mobile e-commerce berbasis android untuk penjualan sembako pada Toko Sembako Berkah Jaya dapat memudahkan pelanggan dalam melakukan transaksi pemesanan dan mendapatkan informasi tentang Toko Sembako Berkah Jaya dan mengurangi terjadinya penularan covid-19.
Narrativas em disputa: desmantelando o sujeito universal e demarcando pontos de partida “O que é lugar de fala?” de Djamila Ribeiro Por Gabriela Monteiro
Authors: MONTEIRO Gabriela 
Published: December 2020

Resenha do livro O que é lugar de fala? é o primeiro livro da coleção Feminismos Plurais, lançado em 2017 e escrito pela ativista e intelectual Djamila Ribeiro. Nele a autora se propõe a desestabilizar as narrativas hegemônicas ao desmontar a falácia da voz universal e expor as diferentes condições sociais dos grupos para acessar lugares de cidadania. Propondo outros marcos epistêmicos e trazendo diversas referências da produção de conhecimento das feministas negras, Djamila denuncia como as relações de poder legitimam ou deslegitimam determinadas categorias a falar – e mesmo a existir. O livro também está sendo um fenônemo político de articulação e visibilidade, com eventos de lançamentos mobilizando milhares de mulheres negras brasileiras em todo o país. A presente resenha aborda os significados e inspirações do livro e da coleção e também conta com uma entrevista com a autora, num diálogo entre mulheres negras.Sujeito. Narrativas. Disputa. Djamila RibeiroNarratives in dispute: dismantling the universal subject and demarcating starting points "What is a place of speech?" - Djamila Ribeiroabstract "What is the place of speech?" is the first book in the Feminismos Plurais collection, published in 2017 and written by activist and intellectual Djamila Ribeiro. In this book, the author proposes to destabilize the hegemonic narratives by dismantling the fallacy of the universal voice and exposing the different social conditions of the groups to access places of citizenship. By proposing other epistemic milestones and bringing various references to black feminist knowledge production, Djamila denounces how power relations legitimize or delegitimize certain categories to speak - and even to exist. The book is also being a political phenomenon of articulation and visibility, with launch events mobilizing thousands of Brazilian black women throughout the country. This review addresses the meanings and inspirations of the book and the collection and also features an interview with the author in a dialogue among black women.Subject. Narratives. Disputes. Djamila Ribeiro
Impacts of China's Emissions Trading Scheme on the National and Hong Kong Economies: A Dynamic Computable General Equilibrium Analysis
Authors: Wang Yue , Winchester Niven , Webster Christopher J. , Nam Kyung-Min 
Published: December 2020

In this study, we estimate the economic impacts of China's official carbon-mitigation targets, in connection with Hong Kong's potential participation in a proposed national emissions trading scheme. We find that moderate intensity-reduction targets emulating China's pledged Paris Agreement commitment would incur much larger policy-compliance costs in Hong Kong (0.1–2.5% of baseline gross domestic product) than in Mainland China (0.1–0.7%) in each of the modeled years 2021 to 2030 when each economy operates its own independent carbon market. By comparison, an integrated carbon market enables Hong Kong to achieve the same reduction goal at up to 78% lower costs compared to an independent market, and this is achieved without significantly affecting the Mainland's economy. These savings in compliance costs for Hong Kong are greater when pre-integration local carbon prices in both economies are subject to a larger gap. Effectively, the cheaper pre-integration carbon prices in the Mainland indirectly subsidize the Hong Kong economy in the initial years of the integration scenario, buffering the policy shock. In sum, an integrated carbon market in China would improve overall efficiency at the national level, but the benefits are biased toward Hong Kong. This finding suggests that it is in the city's interest to play a more active role in cross-border collaboration on climate mitigation and emissions trading.JEL classification: C68, Q42, Q52, Q54
Multimorbidity in General Practice: Unmet Care Needs From a Patient Perspective
Authors: Rimmelzwaan Lisanne M. , Bogerd Mieke J. L. , Schumacher Bregitta M. A. , Slottje Pauline , Van Hout Hein P. J. , Reinders Marcel E. 
Published: December 2020

Introduction: In the Netherlands, as in many other countries, current clinical guidelines are directed at single diseases. Patients with multiple chronic conditions may benefit from a more patient-tailored approach. Therefore, our objective is to explore the general practice care needs of patients with multimorbidity from a patient perspective. We also assessed their care experiences and the impact of chronic conditions on their daily functioning.Methods: We conducted a qualitative study, using semi-structured interviews complemented with self-report questionnaire assessments for triangulation, with consenting community-dwelling patients with three or more chronic conditions. Participants were identified through purposeful sampling in three general practices. Two researchers independently coded and thematically analyzed the audiotaped and anonymously transcribed interviews using the constant comparative method. The self-report questionnaire assessments were used to describe the patient characteristics and for triangulation of the data retrieved from the semi-structured interviews.Results: After 12 interviews, saturation was achieved. Overall, most participants were positive about their relationship with the general practitioner (GP) and practice nurse (PN) as well as the care they received in general practice. However, several unmet care need themes were observed: firstly, lack of a holistic approach (by the GP and PN), in particular, insufficient attention to the patient's state of functioning, their limitations in daily life, and their well-being; secondly, they mentioned that personal continuity of care was important to them and sometimes lacking; thirdly, lack of patient-tailored explanations about diseases and treatments.Conclusion: From a community-dwelling multimorbid patient perspective, general practice care could benefit from improving personal continuity of care, attention to personal circumstances and daily functioning, and patient-tailored communication.
Pensando y actuando en red. Análisis del hashtag #QuédateEnCasa en México
Authors: Olmedo Neri Raul Anthony 
Published: December 2020

El contexto generado por la pandemia de la COVID-19 ha implicado que los gobiernos de cada Estado-Nación elaboren estrategias de comunicación en el espacio virtual para mantener a la población informada sobre el estado sanitario de cada país, así como de las medidas respectivas para su contención. En este sentido, el hashtag #QuédateEnCasa forma parte de la estrategia comunicativa del gobierno mexicano para diseminar información oficial en la sociedad sobre el impacto de este reto epidemiológico. Por ello, el presente trabajo aborda esta forma institucional de comunicación bajo el Análisis de Redes Sociales (Ars) con la finalidad de identificar la red que subyace en este hashtag, así como aquellos perfiles (nodos) que dentro de ese entramado de interacciones se han posicionado dentro del flujo de información a partir de la cantidad de vínculos que poseen, de su capacidad de diseminar la información, así como el nivel de cohesión que se ha generado en dicha red.
A relação do usuário surdo com a tipografia em movimento nos materiais educacionais em Libras: um estudo por meio do rastreamento ocular | The relation of the deaf user with type in motion in educational materials in Brazilian Sign Language: a study with ocular tracing
Authors: Woloszyn Maíra , Santos Gonçalves Berenice , Schmidt Alves Díaz Merino Giselle 
Published: December 2020

As tecnologias de informação proporcionaram avanços na comunicação para usuários com necessidades especiais, tais como os surdos, que utilizam a língua de sinais (LIBRAS) para trocar informações. Atualmente, é obrigatória a oferta de ensino bilíngue (Libras – Português) aos alunos surdos. Em materiais educacionais digitais para deficientes auditivos é comum identificar o conteúdo sendo apresentado por diferentes elementos de mídia, como vídeos, imagens e texto em movimento de maneira simultânea. Desta forma, o presente artigo verificou os principais focos de atenção do usuário surdo tendo em vista a tipografia em movimento em materiais didáticos bilíngues. Para tanto, realizou um estudo por meio do rastreamento ocular com o auxílio do equipamento eye trackingna interação de um usuário surdo com conteúdos educacionais desenvolvidos pelo Instituto Nacional de Educação para Surdos (INES) juntamente com uma entrevista. Como resultado percebeu-se a dificuldade na compreensão das informações simultâneas, a preferência pelo conteúdo apresentado em Libras, bem como a possibilidade de melhorias nos materiais didáticos destinados ao público surdo.*****Information technologies have provided advances in communication for users with special needs, such as deaf people, who use sign language to exchange information. Currently, the offer of bilingual education in Brazil is compulsory for deaf students. In digital educational materials for the hearing impaired is common to identify the content being presented by different media elements, such as videos, images and moving text simultaneously. Therefore, the present paper verified the main attention focuses of the deaf user in view of the typography in motion in bilingual didactic material. To do so, a study was carried out using ocular tracking with the aid of eye-tracking equipment in the interaction of a deaf user with educational content developed by the National Institute of Education for the Deaf (INES - Brazil) together with an interview. As a result, the difficulty in understanding the information presented by different elements of the media simultaneously was perceived. Also, the preference for the content presented in Libras was identified, as well as the possibility of improvements in the didactic material destined to the deaf public.
Viscoelastic characteristics of the canine cranial cruciate ligament complex at slow strain rates
Authors: Readioff Rosti , Geraghty Brendan , Elsheikh Ahmed , Comerford Eithne 
Published: December 2020

Ligaments including the cruciate ligaments support and transfer loads between bones applied to the knee joint organ. The functions of these ligaments can get compromised due to changes to their viscoelastic material properties. Currently there are discrepancies in the literature on the viscoelastic characteristics of knee ligaments which are thought to be due to tissue variability and different testing protocols.The aim of this study was to characterise the viscoelastic properties of healthy cranial cruciate ligaments (CCLs), from the canine knee (stifle) joint, with a focus on the toe region of the stress-strain properties where any alterations in the extracellular matrix which would affect viscoelastic properties would be seen. Six paired CCLs, from skeletally mature and disease-free Staffordshire bull terrier stifle joints were retrieved as a femur-CCL-tibia complex and mechanically tested under uniaxial cyclic loading up to 10 N at three strain rates, namely 0.1%, 1% and 10%/min, to assess the viscoelastic property of strain rate dependency. The effect of strain history was also investigated by subjecting contralateral CCLs to an ascending (0.1%, 1% and 10%/min) or descending (10%, 1% and 0.1%/min) strain rate protocol. The differences between strain rates were not statistically significant. However, hysteresis and recovery of ligament lengths showed some dependency on strain rate. Only hysteresis was affected by the test protocol and lower strain rates resulted in higher hysteresis and lower recovery. These findings could be explained by the slow process of uncrimping of collagen fibres and the contribution of proteoglycans in the ligament extracellular matrix to intra-fibrillar gliding, which results in more tissue elongations and higher energy dissipation. This study further expands our understanding of canine CCL behaviour, providing data for material models of femur-CCL-tibia complexes, and demonstrating the challenges for engineering complex biomaterials such as knee joint ligaments.
Dopamine D1 + D3 receptor density may correlate with parkinson disease clinical features
Authors: Yang Pengfei , Knight William C. , Li Huifangjie , Guo Yingqiu , Perlmutter Joel S. , Benzinger Tammie L.S. , Morris John C. , Xu Jinbin 
Published: December 2020

AbstractObjectiveDopamine D2‐like receptors – mainly dopamine D2 receptors (D2R) and dopamine D3 receptors (D3R) – are believed to be greatly involved in the pathology of Parkinson disease (PD) progression. However, these receptors have not been precisely examined in PD patients. Our aim was to quantitatively calculate the exact densities of dopamine D1 receptors (D1R), D2R, and D3R in control, Alzheimer disease (AD), and Lewy body disease (LBD) patients (including PD, Dementia with Lewy bodies, and Parkinson disease dementia); and analyze the relationship between dopamine receptors and clinical PD manifestations.MethodsWe analyzed the densities of D1R, D2R, and D3R in the striatum and substantia nigra (SN) using a novel quantitative autoradiography procedure previously developed by our group. We also examined the expression of D2R and D3R mRNA in the striatum by in situ hybridization.ResultsThe results showed that although no differences of striatal D1R were found among all groups; D2R was significantly decreased in the striatum of PD patients when compared with control and AD patients. Some clinical manifestations: age of onset, PD stage, dopamine responsiveness, and survival time after onset; showed a better correlation with striatal D1R + D3R densities combined compared to D1R or D3R alone.InterpretationThere is a possibility that we may infer the results in diagnosis, treatment, and prognosis of PD by detecting D1R + D3R as opposed to using dopamine D1 or D3 receptors alone. This is especially true for elderly patients with low D2R expression as is common in this disease.
Optimal economic operation of liquid petroleum products pipeline systems
Authors: Khlebnikova Elena , Sundar Kaarthik , Zlotnik Anatoly , Bent Russell , Ewers Mary , Tasseff Byron 
Published: December 2020

AbstractThe majority of overland transport needs for crude petroleum and refined petroleum products are met using pipelines. Numerous studies have developed optimization methods for design of these systems in order to minimize construction costs while meeting capacity requirements. Here, we formulate problems to optimize the operations of existing single liquid commodity pipeline systems subject to physical flow and pump engineering constraints. The objectives are to maximize the economic value created for users of the system and to minimize operating costs. We present a general computational method for this class of continuous, non‐convex nonlinear programs, and examine the use of pump operating settings and flow allocations as decision variables. The approach is applied to compute optimal operating regimes and perform engineering economic sensitivity analyses for a case study of a crude oil pipeline developed using publicly available data.
Silica‐Decoration Boosts Ni Catalysis for (De)hydrogenation: Step‐Abundant Nanostructures Stabilized by Silica
Authors: Ham Hyungwon , Simanullang Wiyanti F. , Kanda Yasuharu , Wen Yu , Hashimoto Ayako , Abe Hideki , Shimizu Ken‐ichi , Furukawa Shinya 
Published: December 2020

AbstractNi nanoparticles supported on SiO2 were decorated with additional SiOx species by impregnation with tetraethoxysilane (Si(OEt)4). The combination of electron microscopy, infrared analysis, and density functional theory (DFT) calculations revealed that the SiOx‐decoration made the surface morphology of Ni nanoparticles highly rough and step‐abundant due to the significant stabilization of low‐coordination‐number sites. The SiOx‐decorated Ni exhibited 50 times higher catalytic activity for the dehydrogenation of methylcyclohexane to toluene than pure Ni. DFT calculations revealed that the Ni(211) step sites had a more favorable C−H activation than Ni(111) terrace sites and well reproduced the experimental apparent activation energies.
Role of sediment in solute acquisition in the Himalayan glacier meltwater stream, Gangotri glacier, Uttarakhand, India
Authors: Sharma Mukesh K. , Thayyen Renoj J. , Shyamlal  
Published: December 2020

AbstractLow temperature in‐stream solute acquisition in a glacial environment with very high suspended sediment is critical for downstream evolution of water chemistry. Present work is carried out on 18 km headwater reach from Gomukh (snout of the Gangotri glacier) to Gangotri along River Bhagirathi, India for understanding the hydrological processes controlling the solute acquisition in the glacial environment. This is the first attempt to conduct dissolution experiments with river bed sediments and meltwater considering different operating variables namely; contact time, seasonality, different sediment particle sizes, different sediment dose, effect of pH, wetting and crushing of bed sediments of the glacial stream. The role of sediment in low temperature solute acquisition process is characterized by sudden release of ions from the sediment in initial few seconds. Equilibrium time was observed to be 600 s (10 min). Further progressive increase in EC was observed from Gomukh to Gangotri, suggesting change in sediment surface characteristics/or source. Higher dissolution was observed from the bed sediments collected in June. It is found that the dissolution increases with increase in sediment doses but decreases with an increase in sediment particle size fraction. Higher solute acquisition was observed from crushed sediment because of an abundance of very fine particles having fresh, aggressive/reactive mineral surfaces which are capable of dissolution. The solute released from wetted sediment is significantly lower than the fresh sediment, which may be attributed to the destruction of microparticles adhering to mineral grains, the removal of fresh reactive surface sites, dissolution of rapidly weathered minerals such as calcite and evolution towards to equilibrium of the solution. Further, higher dissolution was observed with decrease in pH, which may be attributed to the availability of more hydrogen ion concentration of the solution, which favours more solute acquisition from sediment into meltwater.