bluuebunny/crossref_metadata_2025 huggingface dataset:
Emotion dysregulation and functional brain network topology in adult attention-deficit/hyperactivity disorder
Authors: Viering Tammo , Hoekstra Pieter J. Pieter J. , Philipsen Alexandra , Naaijen Jilly , Dietrich Andrea , Hartman Catharina A. , Buitelaar Jan K. , Hildebrandt Andrea , Gießing Carsten , Thiel Christiane M.
Published: February 2021

Emotion dysregulation is common in attention-deficit/hyperactivity disorder (ADHD). It is highly prevalent in adult ADHD and related to reduced well-being and social impairments. Neuroimaging studies reported neural activity changes in ADHD in brain regions associated with emotion processing and regulation. It is however unknown whether deficit in emotion regulation relate to changes in functional brain network topology in these regions. We used a combination of graph analysis and structural equation modelling (SEM) to analyze resting-state functional connectivity in 147 well-characterized young adults with ADHD and age-matched healthy controls from the NeuroMAGE database. Emotion dysregulation was gauged with four scales obtained from questionnaires and operationalized through a latent variable derived from SEM. Graph analysis was applied to resting-state data and network topology measures were entered into SEM models to identify brain regions whose local network integration and connectedness differed between subjects and predicted emotion dysregulation. The latent variable of emotion dysregulation was characterized by scales gauging emotional distress, emotional symptoms, conduct symptoms, and emotional lability. In individuals with ADHD characterized by prominent hyperactivity-impulsivity, the latent emotion dysregulation variable was related to an increased clustering and local efficiency of the right insula. Thus, in the presence of hyperactivity-impulsivity, clustered network formation of the right insula may underpin emotion dysregulation in adult ADHD.
Photodissociation of CF3CHO provides a new source of CHF3 (HFC-23) in the atmosphere: implications for new refrigerants.
Authors: Hansen Christopher , Campbell Jyoti , Kable Scott
Published: February 2021

Throughout the last century, chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) were the most widely used refrigerants. However, it was discovered that they released reactive chlorine in the upper atmosphere causing the hole in the ozone layer and they were phased out by the 1987 Montreal Protocol [1]. They were replaced by hydrofluorocarbons (HFCs), which contain no chlorine and do not damage the ozone layer. However, HFCs are potent greenhouse gases and they were phased out in a 2016 amendment to the Montreal Protocol [2]. The latest evolution of these refrigerants is the hydrofluoroolefins (HFOs). These molecules have no chlorine and incorporate a carbon-carbon double bond to greatly reduce their atmospheric lifetime, and hence their contribution as a greenhouse gas. In this work, we demonstrate that one of the most important HFOs in current use ultimately decomposes partially into HFC-23 (CHF3) in the atmosphere. HFC-23 is one of the most potent greenhouse gases known, and the most potent HFC. Despite its phaseout, the observed emissions of HFC-23 have been increasing recently and were the largest in history in 2018 with no conclusive explanation [3]. This work suggests that the production of HFOs might be partially responsible.
Kesejahteraan Siswa: Faktor Pendukung dan Penghambatnya
Authors: Ianah Ana , Latifa Rena , Kolopaking Risatianti , Suprayogi Muhamad Nanang
Published: February 2021

The efforts to improve student wellbeing are one of the main concerns in the current educational process. There are a lot of research on wellbeing, but there is still very little research on the wellbeing of children and adolescents, especially in the school context. This paper aims to examine internal and external factors for improving student wellbeing, as well as to reveal the inhibiting factors for student wellbeing. The student wellbeing during childhood and adolescence is important because it will determine the quality of life of students in the future. The results of the study show the factors of increasing wellbeing internally are: 1. The ability to adapt; 2. Learning orientation; 3. Self-assessment; 4. Personal characteristics, while external factors are 1. Student teacher relations; 2. Relationship between children and parents; 3. Friend relations; 4. An environment that supports discipline. While the factors that inhibit wellbeing internally are: 1. Physical health, 2. Students are not maximal in learning, 3. Inadequate achievement, 4. Inadequate material needs, 5. Negative behavior, such as lazy, arrogant, shy, and naughty. While externally are 1. The unpleasant environment 2. Receiving less pleasant treatment; 3. Not able to actualize well.
Padrinhos e caciques: o lado sombrio da atividade política corporativa na captura do Estado
Authors: Coelho Caio César , Barros Amon
Published: February 2021

Uma das estratégias de não-mercado é a atividade política corporativa (CPA), aa qual engloba as atividades empresariais relacionadas a esfera pública como o lobby, as doações de campanha, as associações de classe e contratos públicos. A conexão entre esfera pública e privada pode trazer alguns benefícios, mas também traz riscos para o ambiente democrático na medida em que pode ensejar uma captura do Estado por parte do setor privado, dando para este acesso ao poder público. Sendo assim, este artigo define o lado sombrio da atividade política corporativa e como ele leva à captura do Estado por meio de estratégias empresariais como a de Caciques e Padrinhos. Para tanto, realiza-se um estudo de caso único e intrínseco, utilizando os dados públicos disponibilizados pelas colaborações premiadas da investigação da Odebrecht na operação Lava Jato. Os dados foram estudados de forma qualitativa por meio da análise de redes temáticas. Esta metodologia permite que se construa teoria a partir de uma descrição rica do caso, o que abre portas para novas pesquisas sobre as possíveis consequências negativas da CPA. Como contribuição, traz-se o lado sombrio da CPA e como o relacionamento pessoal entre Caciques e Padrinhos, incentivados pelas organizações, pode levar a crimes organizacionais e à captura do Estado.
A institucionalização da sustentabilidade organizacional na Itaipu Binacional
Authors: Cappellari Nadiessa , Stefani Silvio Roberto , Castro Marcos De
Published: February 2021

A sustentabilidade tem obtido lugar de destaque nas discussões tanto no meio acadêmico quanto no organizacional, a partir do reconhecimento de que a adoção de uma postura ética e responsável nos negócios contribui para os resultados organizacionais e para a sociedade como um todo. Nesse contexto, este trabalho busca compreender a institucionalização da sustentabilidade organizacional (TBL) na Itaipu Binacional. A pesquisa se caracteriza como um estudo de caso com abordagem qualitativa. Verificou-se que a usina trabalha práticas sociais, ambientais e econômicas de maneira equilibrada, e seus funcionários possuem baixa resistência às práticas de sustentabilidade organizacional, favorecendo, assim, a sua sobrevivência entre os membros. As evidências e os resultados apontam que a prática pesquisada se encontra na fase de institucionalização total na organização pesquisada. A principal contribuição do estudo reside nos elementos que mostram como a institucionalização da sustentabilidade organizacional proporciona legitimidade à organização, atuando como um fator que beneficia as ações estratégicas da Itaipu Binacional.
Consumo sustentável e inovação social: o caso da moeda social do Banco Palmas
Authors: Araújo Angelica Catarine da Mota , Oliveira Verônica Macário , Correia Suzanne Érica Nóbrega
Published: February 2021

O objetivo deste artigo é analisar elementos de inovação social que podem contribuir para promoção do consumo sustentável. Para tanto, foi realizado um estudo de caso da moeda social operacionalizada pelo Banco Palmas. Desse modo, utilizou-se o framework proposto por Araújo (2020). O Banco Palmas é considerado um caso emblemático de inovação social que favorece a satisfação das necessidades sociais em diversas áreas, inclusive as de consumo. A compreensão da inovação social a partir da perspectiva do consumo sustentável ressalta a importância de analisar novos formatos organizacionais caracterizados por estruturas inovadoras, inclusivas e sustentáveis. A moeda social desempenha um papel-chave nesse processo porque reorganiza a economia local e promove uma transformação social. Além disso, ela auxilia no acesso ao consumo, incentivando a valorização dos recursos e potencialidades locais, de forma a promover uma rede local de produtores e consumidores. Isso representa uma mudança social e cultural da comunidade por meio de processos participativos e de emancipação.
Determination of the most informative indicators of right-ventricular dysfunction in patients with chronic obstructive pulmonary disease
Authors:   S. M. Kirov Military Medical Academy, Kharitonov Mikhail , Tarasov Victor ,   S. M. Kirov Military Medical Academy, Grishaev Sergei ,   S. M. Kirov Military Medical Academy, Filippov Alexander ,   St. Petersburg State University, Cherkashin Dmitriy ,   S. M. Kirov Military Medical Academy, Lokshina Tatyana ,   S. M. Kirov Military Medical Academy, Varavin Nikita ,   S. M. Kirov Military Medical Academy
Published: February 2021

The aim of the article was the evaluation of structural and functional indicators that reflect the nature of right heart remodeling in patients with chronic obstructive pulmonary disease (COPD) in order to identify the most informative indicators of right ventricular heart dysfunction. The study included 60 patients, who were on inpatient treatment. Patients were divided into two groups: I — study group with COPD (n = 30), and II control group — patients of comparable age without COPD (n = 30). During hospitalization, all patients underwent ECHO-KG with an emphasis on evaluating the systolic-diastolic parameters of the right ventricle. Criteria for inclusion in the study: age over 50 years, presence of COPD, signed informed consent when reading the terms of the study. Exclusion criteria: history/course of neoplastic or hematological disease, systemic connective tissue diseases, documented ischemic disease, valvular heart disease, interstitial lung disease, bronchial asthma. When comparing echocardiographic indicators of right ventricular (RV) function detected significant decrease of systolic function the RV — TAPSE (16.64 ± 4.0 vs 23.21 ± 2.31; p = 0.043), S’(12.57 ± 1.87 vs. 14.96 ± 1.09; p = 0.026), estimated RV EF (49.27 ± 9.23 vs 66.12 ± 7.42; p = 0.021), EFSRV (55.58 ± 7.16 vs 72.4 ± 13.06; p = 0.01) and higher rates SDLA (49.55 ± 6.0 vs 27.1 ± 5.29; p = 0.023) in the study group 1. Measure of right ventricular arterial pairing TAPSE/SDLA was significantly reduced compared with the control group (0.36 ± 0.05 vs 0.86 ± 0.14; p = 0.01). In the main 1 group of patients with COPD, there was a tendency increase of the myocardial performance index (TEI index) (0.76 ± 0.42 vs 0.59 ± 0.22; p = 0.43), which is probably associated with a violation of the relaxation of the right ventricle. To confirm the presence of diastolic RV dysfunction in patients with COPD (in comparison with the control group) revealed significant changes in the indicators obtained from transtricuspid flow — E/Atk (0.67 ± 0.02 vs 1.5 ± 0.38; p = 0.016). The dynamics of the degree of severity of right ventricular dysfunction, estimated using the proposed indicators, may be another additional characteristic of the success of therapy to achieve disease control in patients with COPD.
Integrated RAGA-PP water demand forecast model (case study: Shaanxi Province, China)
Authors: Yang Jun , Mao Yanning , Ma Yuqi , Wu Wei , Bai Yuan
Published: February 2021

The demand for water resources in Shaanxi Province increases greatly due to the continuous growth of its population and the rapid development of the social economy. Water demand forecasting is a significant issue in the designing, maintaining and operating of a reliable and economical water supply system. An explicit mathematical method was presented in this study, based on the indicators of industrial output value, such as the gross output value of agriculture, forestry, animal husbandry and fishery. The impact of total retail sales and year trends in the domestic or industrial water demands, can accurately forecast the water demand fluctuations for a municipality. Adopt RAGA-PP optimal selection model through a grouping method of data handling for water demand management to test for the case study Shaanxi, China. Results showed that the prediction effect of multivariate logarithmic model accuracy can reach 99.50%, and it is estimated that the demand for water resources in Shaanxi would exceed 10 billion m3 by 2030. The average relative error of the water consumption from 2015 to 2017 is 3.05% for the model of multiple linear and 0.50% for the model of multivariate logarithm model. Our framework can assist in developing sustainable solutions.
Solar photocatalytic degradation of metformin by TiO2 synthesized using Calotropis gigantea leaf extract
Authors: Prashanth Venkatesan , Priyanka Kumari , Remya Neelancherry
Published: February 2021

A novel TiO2 nanoparticle was prepared through green synthesis using Calotropis gigantea (CG) leaf extract. Morphological analysis showed dispersed spherical CG-TiO2 nanoparticles with an average size of 42 nm. The prepared catalyst was used for the degradation of metformin (a widely used diabetic medicine) by solar photocatalysis. A three-factor central composite design (CCD) was used to explore the effect of independent variables, i.e., pH 3–7, metformin concentration 1–10 mg/L, and catalyst (CG-TiO2) dosage 0.5–2.0 g/L. A maximum metformin degradation of 96.7% was observed under optimum conditions i.e., pH = 9.7, initial metformin concentration = 9.7 mg/L and catalyst dosage = 0.7 g/L, with ∼86% mineralization efficiency. A quadratic model with an error <5% was developed to predict the metformin degradation and the rate of degradation under the optimum conditions followed pseudo-first-order kinetics (k = 0.014/min). CG-TiO2 exhibited higher metformin degradation efficiency (96.7%) compared to P-25 (23.9%) at optimum conditions. The recyclability study indicated effective reuse of the catalyst for up to three cycles. The proposed metformin degradation route is hydroxyl radical (•OH) generation on the CG-TiO2 surface, transfer of •OH to the aqueous phase from CG-TiO2 and subsequent oxidation of metformin in the aqueous phase.
Hermeneutics of Theological Anthropology
Authors: Zuberier Andrzej
Published: February 2021

Hermeneutics of Theological Anthropology
St. Hilary Of Poitiers On The Christocentrism Of The Spiritual Interpretation Of The Holy Scriptures
Authors: Stanula Emil
Published: February 2021

Two general remarks arise from the synthetic interpretation of the biblical christocentrismpresented by Saint Hilary. e first concerns the subject of theologicalstudy and biblical studies. e above-mentioned presentation of the argumentsof Hilary implies that the mystery of Christ manifesting itself in history, of whichhe is the creator and interpreter at the same time, constitutes the essence of theologyand exegesis. e biblical senses, considered as the result of biblical andtheological research and study, in this approach are nothing but different aspectsof incomprehensible mystery of Christ. Because the mystery of Christ is revealedin history and is history itself, therefore the theological and exegetical studyis of a historical nature at least in the sense that this mystery can be recognizedby applying the aspect-oriented method by comparing what is contained in theScriptures with what people are currently experiencing in a particular episodeof history, because the creator of the latter is Christ. One could say that it seemsto follow from the last statement, that for Saint Hilary, there are no rigid formsof dogmas established once and for all but one: the incomprehensible mysteryof Christ. Although always and everywhere studied, it will never be understoodand expressed in words. In the act of studying it, a person constantly extractsnew aspects from it. It is the task of the exegete and theologian to update it,to make the faithful acquainted with the complexity of its message. If ordinarybelievers do this even at liturgical meetings, then, according to Hilary, eventhough they have not completed specialist theological and biblical studies, theycan read and interpret the holy text fruitfully.e second remark indicates the conditions sine qua non of the existenceand operation of the theologian, exegete, no matter if he is a specialistor an ordinary faithful. ese conditions are faith in Christ and perservancein participation in the Christological reality of the Church and the communityof the faithful. e above claim does not undermine the value of biblical andtheological studies – as understood by us in terms of erudite knowledge. Scholarlybiblical commentaries and the theological and historical writings of Saint Hilary can be regarded as the denial of such a conclusion. e Bishop of Poitiers,by encouraging his readers – by his own example – to intellectual and moralpreparation for the study of the Scriptures, also emphasizes the pointlessnessof practicing exegesis and theology if it is not accompanied by faith in Christ,in isolation from tradition, the continuity of history, finally in isolation fromthe community of the members of Church.
Global Or Universal Morality? The Importance Of Hermeneutics In The Era Of Transformations
Authors: Sobkowiak Jarosław
Published: February 2021

Global Or Universal Morality?The Importance Of Hermeneutics In The Era Of Transformations
Freedom and Truth in “Veritatis Splendor” (VS)
Authors: Bajda Jerzy
Published: February 2021

Freedom and Truth in “Veritatis Splendor” (VS)
Percepción y conocimiento popular sobre los cocodrilos en el “Área de Protección de Flora y Fauna Manglares de Nichupté”, Quintana Roo, México
Authors: Cornejo Alejandra , Gómez-Hernández Yadira , Gómez-Álvarez Graciela , González-Rebeles Carlos , Ulloa-Arvízu Raúl , Villegas Alejandro
Published: February 2021

The success of crocodile conservation programs highly depends on local people’s views, perceptions, and knowledge regarding these reptiles. The present study assessed these variables across the Nichupté lagoon through semi-structured interviews. Answers were grouped into three categories: thoughts regarding the presence of crocodiles in the area, locals’ perception on crocodiles, and local knowledge on crocodiles. Most of the 221 people interviewed showed no aversion to crocodiles, 93.2% knew about the presence of crocodiles in the lagoon, and 98.1% mentioned that it is essential to conserve these reptiles. On the other hand, 77.5% (men) and 70.5% (women) agreed that “it is fine” to share the lagoon with crocodiles. Concerning people’s perceptions about crocodiles, “Quiet”, “Indispensable” and “Interesting” were the most frequent answers. Regarding the local knowledge, we found a positive, statistically significant correlation between this variable and education, with those having high school degrees mentioning "Habitat" and those with college degrees mentioning "Reptile" more frequently. Conservation policies should be redesigned to include continuous environmental education programs that promote positive attitudes towards crocodile species. They should also include measures to guarantee the dissemination of necessary information to protect human and crocodile lives, is essential to consolidate conservation programs.
Brúquidos (Insecta: Coleoptera) asociados a semillas de fabáceas en el Norte de Sinaloa, México
Authors: López-Mora Jesús Fernando , Isiordia-Aquino Néstor , Lugo-García Gabriel Antonio , Flores-Canales Ricardo Javier , Reyes-Olivas Álvaro , Acuña-Soto Jesus Alberto
Published: February 2021

Las fabáceas representan una importante fuente de recursos al ser utilizadas en la producción de carbón, alimentación del ganado y personas, además de evitar erosiones del suelo; estas plantas se encuentran amenazadas en su producción por la presencia de brúquidos o gorgojos (Insecta: Coleoptera), quienes se alimentan de sus semillas para sobrevivir, causando pérdidas económicas en la región. En 2017 se realizaron recolectas de semillas en cuatro municipios del norte de Sinaloa, con el objetivo de identificar las especies de brúquidos asociados a fabaceas y evaluar sus daños sobre la germinación de semillas. Se identificaron 25 especies de fabáceas: Ahome (7), El Fuerte (6), Guasave (6) y Choix (6). Del total de 68,340 semillas, emergieron 19,396 gorgojos adultos, agrupados en siete géneros y 14 especies, con dominancias en las especies de Mimosestes (3), Acanthoscelides (3), Merobruchus (3) y Stator (2). De las especies vegetales, 17 fueron atacadas por una sola especie de brúquido, y seis por dos; en Ahome la especie plaga más perjudicial fue Merobruchus santarosae, con 43.9% y 33.1% de daños a Mariosouza coultieri y M. acatlensis, respectivamente; en El Fuerte, Acanthoscelides desmanthi causó daños del 38.95% a Sesvania herbaceae y del 29.48% a S. occidentalis; en Guasave, los mayores daños correspondieron a Callosobruchus maculatus sobre Cicer arietinum (41.3%), Mimosestes ulkei sobre Parkinsonia aculeata (40.6%) y M. mimosae sobre P. florida (37.7%); en Choix los mayores daños correspondieron a Merobruchus insolitus sobre Albizia sinaloensis (34.7%) y Amblycerus acapulcencis sobre Caesalpinia cacalaco (29.1%).
Modelling human carrying capacity as a function of food availability
Authors: Zulkarnaen Diny , Rodrigo Marianito R.
Published: February 2021

We assume that human carrying capacity is determined by food availability. We propose three classes of human population dynamical models of logistic type, where the carrying capacity is a function of the food production index. We also employ an integration-based parameter estimation technique to derive explicit formulas for the model parameters. Using actual population and food production index data, numerical simulations of our models suggest that an increase in food availability implies an increase in carrying capacity, but the carrying capacity is “self-limiting” and does not increase indefinitely.
doi:10.1017/S1446181120000206
Linearly implicit energy-preserving Fourier pseudospectral schemes for the complex modified Korteweg-de Vries equation
Authors: Yan J. L. , Zheng L. H. , Zhu L. , Lu F. Q.
Published: February 2021

We propose two linearly implicit energy-preserving schemes for the complex modified Korteweg–de Vries equation, based on the invariant energy quadratization method. First, a new variable is introduced and a new Hamiltonian system is constructed for this equation. Then the Fourier pseudospectral method is used for the space discretization and the Crank–Nicolson leap-frog schemes for the time discretization. The proposed schemes are linearly implicit, which is only needed to solve a linear system at each time step. The fully discrete schemes can be shown to conserve both mass and energy in the discrete setting. Some numerical examples are also presented to validate the effectiveness of the proposed schemes.
 
doi:10.1017/S1446181120000218
An optimal linear filter for estimation of random functions in Hilbert space
Authors: Howlett Phil George , Torokhti Anatoli
Published: February 2021

Let \(\boldsymbol{f}\) be a square-integrable, zero-mean, random vector with observable realizations in a Hilbert space \(H\), and let \(\boldsymbol{g}\) be an associated square-integrable, zero-mean, random vector with realizations which are not observable in a Hilbert space \(K\). We seek an optimal filter in the form of a closed linear operator \(X\) acting on the observable realizations of a proximate vector \(\boldsymbol{f}_{\epsilon} \approx \boldsymbol{f}\) that provides the best estimate \(\widehat{\boldsymbol{g}}_{\epsilon} = X\! \boldsymbol{f}_{\epsilon}\) of the vector \(\boldsymbol{g}\). We assume the required covariance operators are known. The results are illustrated with a typical example.
 
doi:10.1017/S1446181120000188
The Effects of Mediterranean Diet on the Human Gut Microbiota; a Brief Discussion of Evidence in Humans
Authors: Kelleher Anita H , Sikalidis Angelos K ,   Department of Food Science and Nutrition, California Polytechnic State University, San Luis Obispo, CA 93407, USA
Published: February 2021

The Mediterranean diet (MD) is considered one of the healthiest dietary patterns due to its rich provision of phytochemicals, antioxidants, vitamins, fiber, polyunsaturated, omega-3, and short-chain fatty acids through a variety of foods. The supply of such nutrients and bioactive components can support gut health and reduce systemic inflammation, with accumulating evidence from several human studies demonstrating the utility of the Mediterranean diet in the prevention of chronic and metabolic diseases. Further studies are needed to explore the role of the Mediterranean diet protecting against such diseases and the related mechanisms, including the interplay between components of the MD and gut microbiota. This brief systematic review specifically explores the recent evidence in humans investigating the link between MD and the human microbiota. Herein, over 50 articles were revised and referenced, after a careful vetting process, to produce this manuscript. Articles were ultimately selected based upon the detail and novelty of their content and contribution to the field.
Modelo productivo de arracacha (Arracacia xanthorrhiza Bancr.): Agrosavia la 22 para la región andina de Colombia
Authors: Garnica Montaña Johanna Paola , Villamil Carvajal Jorge Enrique , Vargas Berdugo Ángela María , Rodríguez Rodríguez Oscar Jair , Atencio Solano Liliana Margarita
Published: February 2021

La Corporación Colombiana de Investigación Agropecuaria - AGROSAVIA, luego de seis años de investigaciones y gracias a la ejecución de proyectos entorno al sistema productivo de arracacha, puso a disposición de los productores del país la primera variedad de arracacha en Colombia, denominada Agrosavia La 22, la cual cuenta con registro ICA para la región natural Andina. Esta variedad se convierte en la quinta a nivel mundial con óptimos rendimientos en producción y raíces tuberosas o arracachas completamente amarillas. Además, representa beneficios a nivel agronómico, comercial y económico para los productores del país, con soluciones en rendimiento, precocidad, respuesta a plagas y enfermedades, calidad en poscosecha y oportunidad costo-beneficio. El presente modelo productivo tiene por objetivo dar a conocer Agrosavia La 22 a todos los sectores interesados. Expone las características de la especie, abordando su origen y la importancia de los cultivos andinos, el proceso de obtención de Agrosavia La 22 y sus características varietales, morfológicas, productivas y económicas; además, se presenta un apartado completo sobre las prácticas asociadas al manejo agronómico del cultivo. Este documento hace parte de las estrategias de transferencia del proyecto “Vinculación de ofertas tecnológicas del sistema productivo de Arracacha para el desarrollo tecnológico del cultivo en la región andina de Colombia”, desarrollado por AGROSAVIA.
Strain measurements with fibre Bragg grating sensors under inhomogeneous deformations
Authors: Hannusch Susann , Peretzki Edgar , Schich Katharina , Lehmann Thomas , Ihlemann Jörn
Published: February 2021

Bragg grating sensors are fibre optic sensors for strain and temperature investigations with many advantages: the sensors can be embedded in plastic materials or composites and several gratings can be inscribed in one sensor. However, inhomogeneous deformation or transversal loading cause widening and splitting of the reflected wavelength peak of a fibre Bragg grating (FBG) sensor. These effects are shown in a residual stress analysis, in which the hole drilling method is adapted for FBG sensors. Additionally, a four-point bending test on three different notched aluminium beams is used to investigate the widening and splitting of the reflected peaks and their effects on the strain analysis. At each sample, a reference strain gauge sensor and two FBG sensors are applied. The two FBG sensors are loaded with different strain gradients. The unnotched beam and the beam with small strain gradient show the accuracy and reproducibility of the experiment. The beam with medium strain gradient shows no peak splitting, but the widening does influence the strain analysis. The results of the beam with high strain gradient demonstrate the peak splitting and the failure of the strain analysis methods. Initial approaches on how to deal with this widening and splitting are discussed.
App Development in a Sports Science Setting: Lessons Learned and Best Practice Recommendations from a Questionnaire Study at the Institute for Sports and Sports Science at the Karlsruhe Institute of Technology (Preprint)
Authors: Barisch-Fritz Bettina , Nigg Claudio , Barisch Marc , Woll Alexander
Published: February 2021

BACKGROUND

Applications (apps) for smartphones and tablets are part of our daily life. Such apps give new opportunities for the health sector to improve the well-being of individuals and to support research. Good application development practices are essential for the success of an application.

OBJECTIVE

The objective of this study was to assess the current state of software engineering expertise in an academic sport science setting and to identify recommendations for successful project implementation.

METHODS

We conducted a questionnaire study to get insights in the actual development process for apps in a typical academic setting. The participants were (33 (SD=7) years, 58% were female) were recruited within the sport science faculty at the Karlsruhe Institute of Technology. The major topics of the survey developed by a multidisciplinary team were demographics, project information, development process, requirements and features, security, technology, and dissemination.

RESULTS

The questionnaire gave us a good overview on the heterogeneity of development projects and potential shortcomings. These shortcomings exist along the complete development lifecycle (e.g. development methodology, requirements engineering).

CONCLUSIONS

Based on these findings, we have proposed recommendations to improve the success probability and the sustainability of app development in a research context and give orientation on the potential roles that sport scientists should take.
From the margins to the mainstream: deconstructing science communication as a white, Western paradigm
Authors: Finlay Summer May , Raman Sujatha , Rasekoala Elizabeth , Mignan Vanessa , Dawson Emily , Neeley Liz , Orthia Lindy A.
Published: February 2021

In this commentary we are concerned with what mainstream science communication has neglected through cultural narrowness and ambient racism: other practitioners, missing audiences, unvalued knowledge, unrecognised practices. We explore examples from First Nations Peoples in the lands now known as Australia, from Griots in West Africa and from People's Science Movements in India to help us reimagine science communication. To develop meaningfully inclusive approaches to science communication, we argue there is an urgent need for the ‘mainstream’ to recognise, value and learn from science communication practices that are all too often seen as at ‘the margins’ of this field.
ANALISIS ZAT GIZI MAKRO, GIZI MIKRO, DAN ORGANOLEPTIK MAKANAN TABUR BERBASIS TUNA DAN LABU SIAM UNTUK TERAPI DIET PREDIABETES
Authors: Sudargo Toto , Prameswari Atika Anif , Aulia Bianda , Aristasari Tira , Isnansetyo Alim , Puspita Indun Dewi , Budiyanti Siti Ari , Putri Sheila Rosmala , Alfionita Khusnul
Published: February 2021

Latar Belakang. Pengaturan diet bagi pasien prediabetes merupakan salah satu pencegahan kejadian penyakit diabetes melitus secara dini. Labu siam dan ikan tuna merupakan bahan pangan lokal yang mengandung banyak senyawa di mana mampu menanggulangi masalah diabetes sehingga dapat dimanfaatkan sebagai makanan tabur fungsional. Pengembangan makanan berbasis tuna dan labu siam perlu diperhatikan karena dapat merubah kandungan zat gizi makro maupun mikro dan sifat organoleptiknya. Penelitian ini bertujuan untuk menganalisis zat gizi mikro, makro, dan organoleptik makanan tabur berbasis Tuna dan labu siam untuk terapi diet prediabetes. Metode. Penelitian eksperimental dengan rancangan acak lengkap (RAL) menggunakan 3 formula makanan tabur Chaguro yaitu, F1 (ikan tuna 60% dan labu siam 40%), F2 (ikan tuna 50% dan labu siam 50%), dan F3 (ikan tuna 40% dan labu siam 60%). Penelitian ini juga menganalisis kandungan kadar air dan uji mikroba. Analisis statistik dilakukan dengan uji Kruskall Wallis dan uji Post-Hoc Mann Whitney untuk melihat perbedaan tingkat kesukaan dari tiap formula makanan tabur. Hasil. Hasil uji kadar air pada ikan tuna didapatkan pengeringan ikan tuna selama 10 jam dengan suhu 55°C dan 65°C  menghasilkan kadar air yang memenuhi syarat <7 persen yaitu 5,85±0,15% dan 5,96±0,00%, berturut-turut. Pada uji kandungan gizi, kadar abu, kadar protein, kadar lemak, kadar serat kasar, dan Zn dalam 100 g formula Chaguro F1 masih dalam batas aman untuk dikonsumsi. Berdasarkan uji organoleptik, parameter kenampakan, aroma, tekstur, dan rasa ikan paling kuat adalah Formula F1. Hasil angka lempeng total (ALT) untuk makanan tabur Chaguro yaitu sebesar 5,5 x 103 CFU/gr. Uji mikroba Salmonella sp. dan Escherichia coli pada makanan tabur Chaguro dinyatakan negatif. Kesimpulan. Formula F1 (ikan tuna 60% dan labu siam 40%) merupakan formula yang paling kuat dan memilki sifat dominan ikan dibandingkan dengan formula lain dan sudah memenuhi syarat SNI Abon 01-3707-1995 dari segi kandungan gizi, kecuali kadar air dan ALT.
MERMAIDS IN THE LAND OF THE KING: AN ETHNOGRAPHY OF SANTOS FC WOMEN
Authors: Biram Mark Daniel
Published: February 2021

Baseado em três meses de pesquisa de campo com o time feminino do Santos Futebol Clube, este artigo considera como as jogadoras negociam as tensões entre as inventadas tradições de gênero e a inclusão feminina no clube. Usando o conceito de Hobsbawm de Tradições Inventadas e adaptando a noção desenvolvida por Billig de Nacionalismo Banal para a ideia de Patriarcado Banal, o artigo explora as experiências de jogadoras com um dos mais emblemáticos clubes do Brasil. Enquanto os homens deixam de ter o monopólio dos clubes oficiais de futebol, esta pesquisa conclui que a incorporação do capital cultural acumulado do futebol feminino a clubes como Santos é imprescindível para desestabilizar a percepção de tradição e história somente masculina dos clubes.
FOOTBALL, NATION, AND WOMEN IN ARGENTINA: REDEFINING THE FIELD OF POWER
Authors: Moreira Verónica , Garton Gabriela
Published: February 2021

Quem tem protagonizado os relatos sobre a nação? Quem tem narrado as histórias sobre o esporte, o futebol e a pátria? Que instituições foram centrais nessas construções? O que aconteceu com as mulheres? Quais têm sido os argumentos para excluírlas do campo de jogo? Estas e outras perguntas organizam o presente artigo que tem como meta refletir em torno ao esporte como prática generificada e generificadora, como um espaço de produção de desigualdades e, também, de oportunidades. Os dados que sustentam o argumento deste artigo provém da análise de entrevistas e conversas informais que tivemos com as jogadoras da Seleção Nacional de Futebol e de equipes da liga oficial da Associação de Futebol Argentino (AFA) e das notícias da edição online do jornal Olé durante a Copa do Mundo de Futebol Feminino de 2019 na França.
Evaluation of Dynamic / Thiol Disulfide Balance and İschemia Modified Albumin in Children with Trauma
Authors: OZTORUN CAN , DORUK HAYAL , GÜNEY DOĞUŞ , KÖSE ÜLFET NİHAL İRDEM , DEMİR TUĞBA ÖRNEK , ÇAYHAN VİLDAN SELİN , DEMİR SABRİ , ERTÜRK Ahmet , GÜNGÖR ALİ , UZUN AYSUN KARA , NURAL CEMİL , Neselioglu Salim , Azili Mujdem Nur , SENEL EMRAH
Published: February 2021

Introduction: Trauma is the most common cause of death in childhood.
Tissue damage, ischemia-reperfusion injury and inflammatory response are
mainly responsible for increasing serbest oxiygen radicals. In this
study, we aimed to investigate the use of thiol-disulfide and
ischemia-modified albumin levels as a diagnostic laboratory parameter in
trauma children. Method: Of 202 children, 101 of them were hospitalized
in pediatric surgical intensive care unit with trauma and 101 of others
were healthy children. Levels of native thiol (-SH), total thiol (SH +
SS), dynamic disulfide (SS), dynamic disulfide (SS) / total thiol (SH +
SS), albumin and ischemic modified albumin (IMA) were measured from the
sera of patients and healthy volunteers. For statistical analyses, SPSS
17.0 was used. Mann-Whitney U and paired correlation test were used
where appropriate. p <0.05 was considered significant.
Results: The mean age of the patients in the trauma group (Boys: 61
Girls: 40) was 7,88 years and the control group was 8,00 years. In
trauma group, 86 of children were exposed to blunt trauma, 15 of
children had penetrating trauma and 54 patients had multiple trauma.
Surgical procedures were performed in 17 patients. In the trauma group,
native thiol, total thiol, dynamic disulfide / total thiol, albumin and
IMA levels were significantly lower than that of control (p
<0.001) and their dynamic disulfide (p = 0.001) was higher
compared to the control. There was no difference thiol-disulfide
parametres in trauma groups sub-division as surgery(n=17) vs.
follow-up(n=84) groups or multiple trauma(n=54) vs. isolated organ
trauma(n=47) groups, or penetrating(n=15) or blunt trauma(n=86) groups.
Conclusion: Thiol-disulfide balance and IMA levels show changes in favor
of oxidative stress in children with trauma, however, it cannot be used
as a laboratory marker that helps to show the system and organ affected
by the trauma and to decide the surgical intervention.
A regional coupled approach to water cycle prediction during winter 2013/14 in the United Kingdom
Authors: Lewis Huw , Dadson Simon
Published: February 2021

A regional coupled approach to water cycle prediction is demonstrated
for the 4-month period from November 2013 to February 2014 through
analysis of precipitation, soil moisture, river flow and coastal ocean
simulations produced by a km-scale atmosphere-land-ocean coupled system
focussed on the United Kingdom (UK), running with horizontal grid
spacing of around 1.5 km across all components. The Unified Model
atmosphere component, in which convection is explicitly simulated,
reproduces the observed UK rainfall accumulation (r2 of 0.62 for daily
accumulation), but there is a notable bias in its distribution – too
dry over western upland areas and too wet further east. The JULES land
surface model soil moisture state is shown to be in broad agreement with
a limited number of cosmic-ray neutron probe observations. A comparison
of observed and simulated river flow shows the coupled system is useful
for predicting broad scale features, such as distinguishing high and low
flow regions and times during the period of interest but are shown to be
less accurate than optimised hydrological models. The impact of
simulated river discharge on NEMO model simulations of coastal ocean
state is explored in the coupled system, with comparisons provided
relative to experiments using climatological river input and no river
input around the UK coasts. Results show that the freshwater flux around
the UK contributes of order 0.2 psu to the mean surface salinity, and
comparisons to profile observations give evidence of an improved
vertical structure when applying simulated flows. This study represents
a baseline assessment of the coupled system performance, with priorities
for future model developments discussed.
Urban contamination assessment of polycyclic aromatic hydrocarbons released from an oil refinery in Rawalpindi
Authors: Mubeen Ishrat , Rashid Audil , Khan Muhammad , Yan Mi , Ali Hafiz
Published: February 2021

Polycyclic aromatic hydrocarbons are among persistent organic pollutants and incomplete combustion of hydrocarbons during petroleum processing activities may cause polycyclic aromatic hydrocarbons contamination in the surrounding area. For the first time in Morgah, Rawalpindi, Pakistan, three targeted polycyclic aromatic hydrocarbons i.e. naphthalene, phenanthrene, and pyrene were estimated from surroundings of an oil refinery. Samples were collected simultaneously in soil, water, and leaves of Melia azedarach L., a widely grown tree species in the sampling area, along different selected sites of main drainage coming out of the refinery. Among three polycyclic aromatic hydrocarbons, pyrene was observed in maximum concentration (24.31 mg/kg in soil) among all selected environmental media and studied compounds showed a dynamic behavior in context of accumulation at different sampling points. There was a significant effect of distance, from petroleum refining area on polycyclic aromatic hydrocarbons levels in soil, water and plant leaves. Our findings provide conclusive evidence that location of an oil refinery has attributed to high polycyclic aromatic hydrocarbons contamination in selected study area which can pose significant risk to general environment and to the public.
Numerical study of the turbulent natural convection of nanofluids in a partially heated cubic cavity
Authors: Lafdaili Zakaria , El-Hamdani Sakina , Bendou Abdelaziz , Limam Karim , El-Hafad Bara
Published: February 2021

In this work we study numerically the 3-D turbulent natural convection in a partially heated cubic cavity filled with water containing metallic nanoparticles, metallic oxides, and others based on carbon. The objective is to study and compare the effect of the addition of nanoparticles studied in water and also the effect of the position of the heated partition on the heat exchange by turbulent natural convection in this type of geometry, which can significantly improve the design of heat exchange systems for better space optimization. For this we have treated numerically for different volume fractions the turbulent natural convection in the two cases where the cavity is heated respectively by a vertical and horizontal strip in the middle of one of the vertical walls. To take into account the effects of turbulence, we used the standard k-? turbulence model. The governing equations are discretized by the finite volume method using the power law scheme which offers a good stability characteristic in this type of flow. The results are presented in the form of isothermal lines and current lines. The variation of the mean Nusselt number is calculated for the two positions of the heated partition as a function of the volume fraction of the nanoparticles studied in water for different Rayleigh numbers. The results show that carbon-based nanoparticles intensify heat exchange by convection better and that the position of the heated partition significantly influences heat exchange by natural convection. In fact, an improvement in the average Nusselt number of more than 20% is observed for the case where the heated partition is horizontal.
Thermo-economic analysis and optimization of the steam absorption chiller network plant
Authors: Panahizadeh Farshad , Hamzehei Mahdi , Farzaneh-Gord Mahmood , Villa Alvaro
Published: February 2021

Absorption chillers are one of the most used equipment in industrial, commercial, and domestic applications. For the places where high cooling is required, they are utilized in a network to perform the cooling demand. The main objective of the current study was to find the optimum operating conditions of a network of steam absorption chillers according to energy and economic viewpoints. Firstly, energy and economic analysis and modelling of the absorption chiller network were carried out to have a deep understanding of the network and investigate the effects of operating conditions. Finally, the particle swarm optimization search algorithm was employed to find an optimum levelized total costs of the plant. The absorption chiller network plant of the Marun Petrochemical Complex in Iran was selected as a case study. To verify the simulation results, the outputs of energy modelling were compared with the measured values. The comparison with experimental results indicated that the developed model could predict the working condition of the absorption chiller network with high accuracy. The economic analysis results revealed that the levelized total costs of the plant is 1730 $/kW and the pay-back period is three years. The optimization findings indicated that working at optimal conditions reduces the levelized total costs of the plant by 8.5%, compared to the design condition.
Numerical simulation on the emission of NOx from the combustion of natural gas in the sidewall burner
Authors: Wang Mingyu , Zhao Jing , Guo Feihong , Zhu Lingli , Shen Dekui , Jiang Xiaoxiang
Published: February 2021

The NOx produced from industrial facilities is a serious environmental problem in China. In this work, the NOx emission from the combustion of natural gas in the sidewall burner was investigated by using CFD method. To achieve the low NOx emission, the sidewall burner structure was optimized involving the width of the primary premixed gas outlet, the secondary fuel gas nozzles number and angular spacing. The mixing rate of fuel gas and air could be improved by increasing the width of primary premixed gas outlet, and the lowest NOx emission of 32.8 ppm was achieved at the width of 8 mm. The NOx emission was remarkably reduced with the increasing of nozzles number, where 28.33 ppm of NOx emission and 357.35 ppm of CO were obtained at four nozzles. The combustion performance and NOx emission was improved as well as NOx emission was reduced at the angular spacing of 55?, compared to that of 30?, 35?, 40?, 45?, 50?, and 60?.
Design and analysis of double-pipe heat exchanger using both helical and rotating inner pipe
Authors: Koca Tarkan , Citlak Aydın
Published: February 2021

In this study, the effects of rotating straight and helical inner tubes is experimentally discussed to determine heat transfer and pressure losses in rotating tubes and improve heat transfer. The outer tube remains stationary and the inner tube is rotated at different speeds in the work. In the experiments for straight and helical tubes, the flow regime is turbulent. According to the results, Nusselt number, pressure loss, and efficiency of heat exchanger were gauged. In addition, empirical formulas were obtained for each pipe type. It is observed that as the rotation speed of the pipe increases, the heat transfer rate increases. The pipe that provides the best increase in heat transfer is the five helixes tubes. At five helixes tubes; after the number of revolutions per minute exceeds 300, the increase in heat transfer rate has almost halt. At five helixes tubes and at 300 rpm speed when the flow of cold water through the annular gap with the fluid passing through the inner tube is equal, the heat transfer increases by 124.10% compared to straight tube, 23.47% compared to two helixes tubes, 7.92% compared to three helixes tubes, and 1.65% compared to four helixes tubes. Maximum effectiveness was obtained while rotating with 300 rpm in five helixes pipes.