bluuebunny/crossref_metadata_2025 huggingface dataset:
Morphological and mechanical properties of lower limb muscles in type 2 diabetes: a new potential imaging indicator for monitoring the progress of DPN
Authors: Zurong Yang , Yuandong Li , Xiankui Tan , Fuhao Mo , Tang Liu , Junkun Zhan
Published: September 2022

The aim of this study was to explore changes in morphological and mechanical properties of lower limb skeletal muscles in diabetic patients with and without diabetic peripheral neuropathy (DPN) and seek to find a potential image indicator for monitoring the progress of DPN in patients with type 2 diabetes mellitus (T2DM). A total of 203 patients with type 2 diabetes mellitus (T2DM), with and without DPN, were included in this study. Ultrasonography and ultrasound shear wave imaging (USWI) of the abductor hallux (AbH), tibialis anterior (TA), and peroneal longus (PER) muscles were performed for each subject, and the shear wave velocity (SWV) and cross-sectional area (CSA) of each AbH, TA, and PER were measured. The clinical factors influencing AbH_CSA and AbH_SWV were analyzed, and the risk factors for DPN complications were investigated. AbH_CSA and AbH_SWV in the T2DM group with DPN decreased significantly (p < 0.05), but no significant differences were found in the SWV and CSA of the TA and PER between the two groups. TCSS score and glycosylated haemoglobin were independent predictors of AbH_CSA and AbH_SWV. As AbH_SWV and AbH_CSA decreased, the TCSS score and glycosylated haemoglobin increased, and the incidence of DPN increased significantly. In conclusion, the AbH muscle of T2DM patients with DPN became smaller and softer, while its morphological and mechanical properties were associated with the clinical indicators related to the progression of DPN. Thus, they could be potential imaging indicators for monitoring the progress of DPN in T2DM patients.
Língua inglesa e internacionalização
Authors: Kobayashi Eliana , Higashi Roberto
Published: September 2022

O objetivo deste trabalho é fazer uma análise bibliométrica para investigar a relação entre internacionalização e língua inglesa no contexto acadêmico. Por meio das palavras de busca English language, internationalization, education, higher education e EMI, colocadas no banco de dados Web of Science, foram levantadas publicações, países de origem, parcerias e áreas de conhecimento de janeiro de 2000 a dezembro de 2020. Os resultados apontam que o Brasil está entre os dez países que mais publicam, mas apresenta uma carência no desenvolvimento de pesquisas com autores de outros países, diferentemente dos asiáticos, europeus e dos Estados Unidos.
Terveyteen liittyvistä riskeistä ja mahdollisuuksista nuorten mediakäytössä
Authors: Hakola Outi
Published: September 2022

Young people, media and health : risks and rights / editors: Cecilia von Feilitzen & Johanna Stenersen. Göteborg : Nordicom, 2014.
Do you know Company Value? It's Depend on Accounting Disclosure and Performance Environment: Evidence from Indonesian Country
Authors: Saputro Julianto Agung , Indraswono Cahyo
Published: September 2022

This research is important to do to find out the factors that affect the firm value. Therefore, researchers want to examine the effect of ADCE and environmental performance on firm value. Researchers used the 2016 GRI standards to measure environmental performance. The results of this study are expected to add/strengthen empirical evidence regarding legitimacy theory and the triple bottom line concept as well as deepen knowledge about what factors can affect firm value, which can be used as additional references for research. in the future and hopes to add to the company's initiatives in preserving the environment. This study provides the following conclusions accounting disclosure Carbon emissions have a negative effect on firm value and environmental performance has a positive effect on firm value. This means that if the environmental performance of a company is getting better, it can increase the value of the company because investors will give a positive response by buying company shares so that it can increase share prices which have implications for increasing company value. For the government, if ADCE is made as a regulation, what must be considered is to provide a third party as a verifier in the calculation of carbon emissions so that the ADCE disclosed by the company can be trusted. For companies, if they want to disclose carbon information voluntarily, it is better to choose which information should be disclosed.
The Mediation Effect of Market Performance on the Effect of Capital Intensity Ratio, Inventory Intensity Ratio, Managerial Ownership, and Institutional Ownership on Tax Aggressiveness
Authors: Handayani Rini , Carolina Verani , Amanda Verna Budi
Published: September 2022

This study aims to analyze the mediating effect of Market Performance on the influence of Capital Intensity Ratio, Inventory Intensity Ratio, and Ownership Structure on Tax Aggressiveness Study on Manufacturing Companies Listed on the Indonesia Stock Exchange (ISE) for the period 2015-2019. The population used in this study is all companies listed on the ISE, and the sample used in this study is manufacturing companies listed on the ISE from 2015 to 2019. The testing method used in this study is Path Analysis. Based on the results of the tests carried out using SPSS, the results show that there is an effect of Capital Intensity Ratio, Inventory Intensity Ratio, Managerial Ownership, and Institutional Ownership on Tax Aggressiveness mediated by Market Performance, but overall the magnitude of the direct influence test of Capital Intensity Ratio, Inventory Intensity Ratio, Managerial Ownership, and Institutional Ownership on Tax Aggressiveness is greater than if using the Market Performance variable as a mediating variable.
Blanco y Frío como El Polo Norte y El Polo Sur: Seres Humanos y Robots
Authors: Torras Genís Carme , Delicado Moratalla Lydia
Published: September 2022

El trabajo de estas dos científicas nos adentra en el mundo de la inteligencia artificial (IA) y la robótica, esta realidad que traza nuestra cultura literaria futurista con nuestro presente más inmediato para crear soluciones y plantear cuestiones éticas ineludibles. Carme Torras Genís, la primera invitada, trabaja en el Instituto de Robótica e Informática Industrial (CSIC-UPC) donde es profesora de investigación. Ella es una veterana matemática y doctora en informática que cotidianamente diseña robots, respondiendo a la demanda de otros equipos de investigación u organismos que tienen necesidad de emplearlos como herramientas para interactuar con personas con necesidades especiales. Desde su vertiente divulgadora es una referente novelista de ciencia ficción; sus libros plantean interesantes dilemas éticos relacionados con la incorporación de entidades con inteligencia artificial en la sociedad contemporánea. Lydia Delicado-Moratalla, la segunda invitada, es una joven pero no por ello menos experta investigadora. Geógrafa, Doctora en Estudios Interdisciplinares de Género de la Universidad de Alicante, con su investigación ha transitado desde el análisis de la sexualidad de las mujeres negras hasta los modelos vigentes de prostitución y pornografía a través de los robots humanoides. Su línea de trabajo gira en torno a las personas que construyen y promocionan estas IA con fines lucrativos, debatiendo en torno al impacto que produce en las mujeres como elementos sociales de interpretación y de construcción de valor
Introduccción
Authors: San Segundo Rosa , López Ongil Celia
Published: September 2022

Los Estudios de Género, Feministas y de las Mujeres han introducido importantes aportaciones teóricas al conocimiento científico sin las cuales sería imposible comprender la realidad que nos rodea. Entre las aportaciones más importantes se encuentra la consolidación de la categoría género y la epistemología feminista como vía para una ciencia más inclusiva y menos segregacionista. Una herramienta de análisis indispensable para comprender los procesos de desigualdad entre hombres y mujeres, y el desarrollo de un punto de vista crítico que cuestione la tradicional y androcéntrica forma de hacer ciencia.
Platón: ¿Qué hiciste?
Authors: Ponzoni Federico
Published: September 2022

En el presente articulo se llevará a cabo una lectura del diálogo platónico Eutifrón a partir de las categorías de gesto y de tecnología comunicativa. Estas categorías permitirán poner de manifiesto la intención de Platón, como autor del diálogo, de denunciar como superado, inactual y desapegado de la realidad a Eutifrón y a toda la mentalidad que este personaje representa. Se evidenciará también como la eficacia del gesto que Platón como autor del diálogo quiere llevar a cabo rebosa en el dominio del pensamiento lineal y abstracto demostrado por Sócrates a lo largo del diálogo. Este dominio, sin embargo, no se basa simplemente en unas mejores capacidades cognitivas de Sócrates, sino que se trata de una verdadera y propia superioridad tecnológica ya que el alfabeto permite el desarrollo de dichas habilidades. El diálogo viene a representar entonces no sólo el choque de una mentalidad religiosa superada a inauténtica con una racional y autentica, sino que también el choque de un pensamiento ligados a la oralidad con uno que nace de la tecnología alfabética.
Challenges and opportunities of maker culture for the digitalization of Spanish society
Authors: Tabarés Raúl , Bartolome Campino Tatiana , García Valbuena Jorge
Published: September 2022

The popularization of the "maker culture" has facilitated the emergence of various spaces worldwide that facilitate the dissemination of knowledge and skills associated with emerging technologies. This article analyzes them with special emphasis on the Spanish territory. Focusing on two institutionalization examples of this type of spaces (Ikaslab Sarea and Xarxa d'Ateneus de Fabricació), we explore the opportunities and challenges they present for citizen empowerment. We argue that the institutionalization of these spaces should move away from technocentric approaches and bet on a model based on the development of skills, values and experiences that contribute to a responsible digitization.
Intermediate forms and technological change: Exploring the links between technology and topology
Authors: Gomez-Valenzuela Victor
Published: September 2022

The study of technology and technological change is a dynamic field where diverse disciplines from the social sciences and the humanities converge.  It is possible to find several ontologies that incorporate topological referents as heuristic metaphors and simple methodological devices in technological studies.  The paper examines two related topological concepts, continuity and convergence, based on the notions of accumulation of knowledge and a combination of pre-existing technologies to arrive at the notions of convergence and inflation.  The paper concludes with some future research guidelines that formally explore the potential of topology in technology and technological change studies.
La percepción de las materias STEM en estudiantes de Primaria y Secundaria
Authors: VALERO-MATAS JESÚS ALBERTO , COCA JIMÉNEZ PABLO
Published: September 2022

El texto que aquí se presenta analiza diferentes aspectos que favorecen o dificultan el interés por las materias STEM. Desde hace algunos años se viene analizando las razones que llevan a los estudiantes a decantarse por estudios que no pertenecen al ámbito STEM, en detrimento de los propiamente STEM. Se atribuyen a determinadas razones, especialmente la dificultad, el descenso de vocaciones científicas. Desde los datos obtenidos se desea desvelar algunos de los elementos que pueden explicar el descenso de los estudiantes en la elección de itinerarios educativos de ciencia y tecnología.
Jóvenes, comunicación y cultura. Disputas y sentidos en la Fiesta Nacional de los Estudiante en Jujuy
Authors: Guzmán Juan Armando , Sosa Chavez Nicolás , Montial Bergesio Lara
Published: September 2022

La Fiesta Nacional de los Estudiantes (FNE) es una festividad que se desarrolla hace setenta años en la ciudad de San Salvador de Jujuy, la cual cuenta con varias instancias para hacerse efectiva, una de ellas se denomina Pintada Estudiantil. En este artículo daremos cuenta de un conflicto durante la misma en donde entraron en crisis los sentidos hegemónicos sobre la juventud y su rol de herederos y reproductores de los valores tradicionales de una sociedad. El análisis crítico nos permitirá develar las significaciones dominantes en los procesos de interacción social a partir de un estudio de los sentidos y estrategias biopolíticas en la construcción y regulación de la condición juvenil. Esto nos permitirá indagar en las tensiones y resistencias que se generan desde determinados sectores juveniles, a las imposiciones institucionales vigentes en una sociedad como la jujeña.
STUDENTS’ PERCEPTION ON THE USE OF NHK CHANNEL IN LEARNING VOCABULARY
Authors: Abubakar Multazam , Jusnaeni
Published: September 2022

This research aims at investigating the perception of the third-grade students on learning vocabulary through NHK channel at Madrasah Aliyah Masembo Maros. The method of this research was quantitative descriptive method. The population was all the students of the third grade in Madrasah Aliyah Ainus Syamsy Masembo Maros that consisted of 50 students. The samples were selected purposively, that were those who already watched NHK channel that consisted of 14 students. The data were collected through questionnaires. The data were analyzed by looking for the means score and intervals to classify them. The result indicated that there was a positive perception of watching NHK channel on students’ learning. It was proved by the mean score of total number of all of the questions as 56,6 which was classified as very high. Therefore, it is concluded that learning vocabulary through NHK Channel has good response from third grade students of Madrasah Aliyah Ainus Syamsy Masembo Maros or in the other words the use of media as learning tool such as NHK channel can help students in learning vocabulary
Optimal Research in Piano Shape Sound and Sound Propagation Model Based on Nonlinear Differential Equations
Authors: Fu An
Published: September 2022

Nonlinear differential equations are being used in many applied science fields such as engineering, there are more and more applications, such as musical instrumentation, chemistry, aerodynamics, cybernetics, signal and image processing, biophysics, complex media dynamics, etc. Mainly based on the analysis of the vibration and attenuation characteristics of piano strings, and on the theoretical basis of the discussion on the resonance effect of the resonance system, the model of the piano music simulation system is constructed, investigated a class of fractional nonlinear differential (integrative-differential) equations and systems of equations, fractional nonlinear differential equations on unbounded domains, and with multiple different fractional derivatives, and the existence of solutions to integral nonlinear impulse differential equations, uniqueness, multiple solutions, eigenvalue interval, as well as monotonic iterative sequences and error estimates that converge to the solutions of the corresponding equations. Finally, from the pitch frequency detection, formant point frequency estimation, and three aspects of spectrogram analysis, subjective evaluation experiments are carried out on the algorithm, and the experimental results verify the effectiveness of musical simulation.
El discurso de la pobreza en México
Authors: López-Salazar Ricardo , De la Torre-Valdez Hugo César
Published: September 2022

Objetivo: el estudio se propone analizar el discurso de la pobreza en México. Para ello, se analizaron los siete Planes Nacionales de Desarrollo (1983-2019) ejecutados en el país y de los informes de gobierno derivados de las consecuentes administraciones federales y se realizaron mapas de pobreza, marginación y mortalidad infantil. Metodología: análisis mixto documental y descriptivo en la parte cualitativa, y geográfico en la parte cuantitativa, se identifica el diagnóstico, las acciones de política económica y social, para disminuir el hambre, la desigualdad y fundamentalmente la pobreza. Con los informes, se verifican los avances reportados por los gobiernos. Resultados: resalta la homogeneidad en relación con el diagnóstico causal de la pobreza: desigualdad, asimetrías en el desarrollo regional del país, bajos salarios, discriminación étnica y racial, limitadas oportunidades para acceder a servicios públicos de calidad como educación y salud. Limitaciones: al ser un estudio documental y descriptivo, no se profundizó en las causas estructurales de la pobreza, la marginación y el hambre. Conclusiones: la política social y económica implementada durante el periodo estudiado es bastante similar, y en términos generales, ha sido insuficiente para darle solución a los fenómenos atribuidos como causales de la pobreza en el país.
Pola Peresepan Antipsikotik Pasien Skizofrenia Di RSJ Mutiara Sukma Provinsi NTB Tahun 2020
Authors: Candra Eka Puspitasari  , Ni Made Amelia Ratnata Dewi  , Siti Rahmatul Aini  , Raisya Hasina  , Iman Surya Pratama
Published: September 2022

Prevalensi skizofrenia di NTB menempati urutan ketiga nasional yaitu mencapai 9,6%. Terapi primer skizofrenia adalah antipsikotik untuk mencegah timbulnya kekambuhan gejala. Penelitian ini bertujuan untuk mengetahui pola peresepan obat antipsikotik pada pasien skizofrenia. Penelitian ini merupakan penelitian non eksperimental dengan analisis data secara deskriptif dan pengambilan data dilakukan secara retrospektif tahun 2020. Data yang digunakan antara lain data penggunaan terapi berdasar data rekam medis.  Hasil yang diperoleh menunjukkan bahwa obat yang paling banyak diresepkan adalah golongan atipikal yakni Risperidon (44,32%). Sedangkan untuk peresepan kombinasi terdapat kombinasi terbanyak yakni Risperidon-Klozapin (34 kali atau 47,89%).
Efektivitas Edukasi Obat untuk Pasien Diabetes Mellitus pada Masa Pandemi Covid-19 di Puskesmas Kecamatan Cempaka Putih, Jakarta Pusat
Authors: Puspita Nanda , Khairunnida Khairunnida
Published: September 2022

Diabetes mellitus is a chronic disease requires continuous therapy by professional health workers and self-care management from the patients. To support this, diabetic patient who seek treatment at the primary healthcare facilities is recommended to join The Chronic Disease Management Program (Prolanis). During the Covid-19 pandemic, the frequency of diabetic-related prolanis activities became less monitored, especially regarding the accuracy of using antidiabetic oral (ADO). A quasi-experimental study was conducted through drug education by pharmacists to determine the effect of such education on clinical outcomes, namely the patient's glycosylated hemoglobin (HbA1c) levels. The results showed that there was a decrease in HbA1c levels (1.31%) in the intervention group (n=7) and an increase in HbA1c (0.51%) in the control group (n=17; p=0.078). Eventhough it was not statistically significant due to limited research subjects, education on the proper use of ADO can reduce HbA1c levels in diabetic patients.
Potensi Ekstrak dan Fraksi Buah Maja (Aegle marmelos) sebagai Agen Antibakteri terhadap Propionibacterium acnes
Authors: Dianasari Dewi , Hanifah Hanifah , Nuri Nuri
Published: September 2022

Tanaman obat asal Indonesia yang berpotensi dimanfaatkan sebagai obat adalah Maja (Aegle marmelos L.). Pemanfaatan buah maja di Indonesia masih terbatas. Berdasarkan studi literatur, belum ditemukan uji aktivitas antibakteri Buah Maja terhadap Propionibacterium acnes  (P. acnes). P. acnes adalah bakteri berbentuk batang dan termasuk golongan gram positif yang juga sebagai penyebab jerawat. Pengobatan jerawat umumnya menggunakan antibiotik, dimana meningkatnya penggunaan antibiotik memicu menurunnya efektivitas antibiotik akibat resistensi bakteri. Oleh karenanya, maka perlu dikembangkan penelitian obat baru dari bahan alam sebagai antibakteri. Penelitian ini bertujuan untuk mengetahui potensi ekstrak  dan fraksi Buah  Maja dalam menghambat pertumbuhan P. acnes. Pengujian dilakukan menggunakan uji aktivitas antibakteri metode difusi cakram. Kelompok uji terdiri dari ekstrak etanol, fraksi n-heksana, dan fraksi etil asetat dari Buah Maja dengan  konsentrasi 1, 5, 10, 15, dan 20 % b/v, tetrasiklin 0,003%b/v (kontrol positif) dan DMSO 10% b/v (kontrol negatif). Hasil analisis statistik pada hasil uji, menunjukkan bahwa aktivitas antibakteri semakin meningkat seiring meningkatnya konsentrasi uji. Fraksi etil asetat memiliki daya hambat yang paling besar pada konsentrasi 1%- 15% dibandingkan dengan sampel lainnya. Sedangkan pada konsentrasi 20%, aktivitas antibakteri fraksi etil asetat sebanding dengan ekstrak etanol. Berdasarkan nilai diameter zona hambatnya, ekstrak dan fraksi buah Maja memiliki aktivitas antibakteri terhadap P. acnes , kategori sedang hingga kuat.
Revisión sobre la broca del café, Hypothenemus hampei (Coleoptera: Curculionidae: Scolytinae) con énfasis en la resistencia mediante antibiosis y antixenosis
Authors: Molina Diana
Published: September 2022

El control genético como método de control que puede combinarse con otros métodos, ha sido poco estudiado como alternativa económicamente viable y de fácil adopción en el caso de la broca del café Hypothenemus hampei (Ferrari), plaga que ocasiona las mayores pérdidas económicas al cultivo de café en Colombia. Los esfuerzos por reducir estas pérdidas económicas se han enfocado principalmente en el manejo integrado de la plaga a través de prácticas culturales, químicas y biológicas, que han logrado mantener su infestación por debajo del 5% que representa alrededor del 7% de los costos de producción del café. El empleo de variedades resistentes aumenta la eficiencia del manejo integrado debido a que permite reducir el número de individuos por generación y prolonga su periodo de desarrollo. Esto disminuye el crecimiento de la población y mantiene los insectos por debajo de los niveles de daño económico. Esta revisión presenta información del origen de la broca del café, su dispersión, biología y ciclo de vida, y las pérdidas económicas ocasionadas por la plaga. Se hizo énfasis en los estudios de resistencia de la planta de café contra la broca mediante antibiosis y antixenosis. En el caso de antibiosis, se recopiló la identificación de las fuentes de resistencia del género Coffea, así como la utilización de introducciones etíopes de Coffea arabica y de accesiones de C. liberica de la Colección Colombiana de Café (CCC) como progenitores masculinos para el desarrollo de una variedad con efecto de antibiosis contra la broca. En el caso de antixenosis, se compilaron los estudios pertinentes realizados en especies y variedades de café respecto a H. hampei.
Quel profil pour les hospitalisations non volontaires en psychiatrie ?
Authors: Diringer Oana
Published: September 2022

La psychiatrie a une place à part parmi les spécialités médicales concernant les hospitalisations contre la volonté du patient.  Jusqu’en 2012 il s’agissait de privation de liberté à de fin d’assistance. A partir du 1.01.2013 un nouveau Code Civil a été adopté en Suisse. Les articles 426 à 429 mettent en place le placement à des fins d’assistance (PAFA), une mesure de protection pour la personne. Notre étude rétrospective du 2014-2016 a comme objectives (1) d’amener des connaissances de certains paramètres expliquant les hospitalisations non volontaires ; (2) de répondre à la question : Pouvons-nous considérer ce type d’hospitalisation comme une expérience clinique ? Les résultats principaux démontrent : Deux facteurs étaient significatifs à un niveau de valeur p ≤ 0,05 : (a) Vivre dans un établissement d'accueil (foyer), augmente la probabilité d'avoir un PAFA (p = 0,04) ; (b) Le fait d'être diagnostiqué comme ayant des troubles psychotiques, liés à des substances psychoactives augmente la probabilité d'avoir du PAFA (p = 0,01). Trois facteurs supplémentaires sont significatifs : être un homme (p = 0,0655) et vivre seul (p = 0,05) augmente la probabilité d'avoir un PAFA, cependant la variable âge (p = 0,03) diminue la probabilité d'avoir un PAFA (ce qui signifie que plus vous êtes âgé, plus la probabilité d'avoir un PAFA est faible). Les hospitalisations sous contrainte trouvent une place d'exception dans le champ médical de la psychiatrie. Et pourtant ne sont pas une fatalité. Les implications éthiques, légaux, cliniques qui sont lies aux hospitalisations non volontaires amènent une lumière particulière à ce type de prise en charge psychiatrique.
Cortica Explain to me : How learning and memory operate in the brain ?
Authors: Roger Domitille , Fahim Fahmy Cherine
Published: September 2022

The building blocks of a human healthy life are assembled in the brain. Cognitive and emotional neural systems interact based on genetic and epigenetic factors, hence entangling our experiences for better or for worse. During childhood and through adolescence traumatic experiences may embrace our lifelong behaviours creating a shaky brain-behaviour relationship, hence affecting learning and memory.  Fortunately, such a relationship is not static. In this course we will work together to understand how the human brain encompasses learning and memory during normal and traumatic experiences. Let’s discover together how these systems are organised in the brain!
What are the neural codes of learning & memory ?
Authors: Semeria Cécilia , Fahim Fahmy Cherine
Published: September 2022

Cette vidéo vous emmènera à travers un voyage d’apprentissage et de mémoire dans le cerveau. Nous assistons actuellement à un environnement en constante évolution, des virus à l’éco-anxiété en passant par la guerre et le changement climatique. L’apprentissage de nouvelles informations et compétences, le stockage de souvenirs de ces connaissances et la récupération, la modification ou l’oubli de ces souvenirs au fil du temps sont essentiels pour répondre de manière flexible à un environnement en constante évolution.
L’utilité des neurosciences du développement de l’enfant pour comprendre et prévenir les maltraitances dans les structures d’accueil de l’enfance
Authors: Dalla Palma Noemie
Published: September 2022

La maltraitance peut revêtir de multiples formes et concerner de nombreux domaines. Dans le secteur de l’accueil de l’enfance (ou accueil extra-familial), les actes de maltraitances qui aboutissent à une dénonciation judiciaire sont très rares. Cependant, la rareté des dénonciations ne doit pas être entendu comme un signal d’inexistence de maltraitance dans ces institutions.

La maltraitance comprend de nombreux actes, des plus graves à ceux qui paraissent le plus banal. Dans ce travail, il sera mis en avant que même des actes du quotidien pouvant sembler inoffensifs peuvent avoir de vraies répercussions sur le cerveau en développement de l’enfant.  Face à ce constat, il est primordial que le personnel éducatif soit formé sur cette thématique, en comprenant de manière poussée le développement de l’enfant et les impacts du stress toxique sur son cerveau. Pour ce faire, les neurosciences sont un outil indispensable qui leur permet d’agir quotidiennement avec conscience et d’effectuer un vrai travail de prévention au sein des institutions.
Biosphères : mesure de résilience à visée d’insertion sociale et professionnelle en nature et sur le marché du travail réel en faveur des jeunes en difficulté
Authors: Jaquier Joanne , Kuenlin Jean-Luc
Published: September 2022

Comment agir sur la motivation des jeunes à s’en sortir, s’émanciper et prendre place en société ? Constat : il existe des jeunes pris dans la spirale de la marginalisation sociale et professionnelle à risque de dépendance chronique des systèmes de protection sociale (aide sociale, AI et autres). Problématique : Les jeunes en situation de grande difficulté d’insertion ne voient pas d’issues à leur situation complexe et se sentent, tout comme les professionnels qui les accompagnent, démunis. À force d’échecs successifs, ils perdent espoir et confiance en eux. Ils ne voient plus de sens à l’avenir. Souvent, pour se protéger ou en lien avec des difficultés personnelles, ils ont tendance à se couper de leurs propres émotions qu’ils vont mettre à distance par des comportements et des consommations à risque (drogue, alcool). Ils activent des mécanismes de défense (croyances limitantes, trouble du comportement) et finissent pas se distancer ou être distancé des systèmes d’intégration sociale (travail, famille, formation, société) qui révèlent ses failles. Lorsqu’on leur donne la parole, ils disent avoir besoin d’être attendus quelque part par quelqu’un, pour une activité sociale ou professionnelle valorisante et valorisée, qui procure un statut et une fonction sociale. En bref, ces jeunes ont besoin d’appartenance. C’est pourquoi, souvent, ils se rapprochent des milieux marginaux dans lesquels ils ont une place et sont reconnus par les pairs qui partagent la même réalité de « mise à la marge ». Enjeux : Comment amener les jeunes en (risque de) rupture d’insertion sociale et à la prise de conscience de leur capacité d’agir sur soi ? Depuis 2020, la Fondation de Fribourg pour la jeunesse élabore un concept d’accompagnement spécifique aux jeunes en (risque de) rupture d’insertion sociale et professionnelle, intitulé : « mentorat à haut seuil de tolérance en nature et sur le marché du travail réel ».
Peur, incertitude et résilience : sont-elles les éléments constitutifs de la prise de décision vaccinale pendant l’épidémie COVID-19 ?
Authors: Giardini Umberto
Published: September 2022

Les caractéristiques de la pandémie COVID-19 (rapidité de diffusion, connaissances incertaines, sévérité, mortalité, semi-confinement, mobilisation physique/psychique extrême) ont installé un climat anxiogène, ainsi qu’incertain auprès du personnel des établissements médicaux sociaux (EMS). L’adhésion à la vaccination et à la distanciation physique revêt une importance particulière puisque les travailleurs des EMS font partie des catégories les plus à risque de contracter le virus.  Dans ce contexte, une enquête anonyme par questionnaire a été menée auprès de ces travailleurs par le Centre Neuchâtelois de Psychiatrie (CNP) dans le canton de Neuchâtel en Suisse, afin d’identifier (1) les critères à prendre en compte dans la prise de décision de vaccination; (2) l’impact de la pandémie sur leur santé physique/psychique. 1800 enveloppes sont envoyés aux EMS. 700 participants ont répondu au questionnaire proposé. 500 ont été retenus. Les résultats montrent que (a) 71,4% appui l’idée que le vaccin apporte une réponse à la crise actuelle ; (b) 88,4% ont déjà reçu leur 1ère dose ; (c) impact de la santé physique et mentale (peur et incertitude) sur la décision de vaccination, ainsi que sur la relation avec les résidents des EMS et au niveau privé ; (d) les échelles de santé mentale ont montré une certaine résilience liée à l’âge. Nous constatons des corrélations positives entre « La charge de travail a été lourde » et le fait de ressentir beaucoup de fatigue physique r = 0,54 ;  p < 0,01, ainsi que beaucoup de fatigue psychique r = 0,38 ;  p < 0,01 chez l’ensemble du personnel associées avec « Des changements importants ont eu lieu dans l’organisation de mon travail, affectation, planning, autres » r = 0,25 ;  p < 0,01. En conclusion, les résultats issus de cette étude nous aident à mieux comprendre les critères décisionnels de vaccination, les risques/vulnérabilités ainsi que la résilience du personnel des EMS du canton de Neuchâtel face à l’épuisement physique/psychique.
Understanding your support system: the design of a stable MOF/polyazoamine support for biomass conversion
Authors: Karve Vikram V. , Nekrasova Nadezhda A. , Asgari Mehrdad , Trukhina Olga , Kochetygov Ilia , Abedini Hassan , Yang Shuliang , Alexandrov Eugeny V. , Luterbacher Jeremy , Queen Wendy L.
Published: September 2022

Introducing oligomeric or polymeric units into metal-organic frameworks (MOFs) can result in composites that have significantly improved properties when compared to the individual MOF or polymer building blocks. With such synergy in mind, this work presents the design of a novel MOF/polyazoamine support that is used to stabilize Pd NPs. The resulting composite catalyst, tested in the reductive amination of levulinic acid, is found to have a markedly improved lifetime when compared to just the MOF or polymer support containing Pd. It is demonstrated, for the first time, that the lifetime enhancement stems directly from the polymer, which plays a dual role: i) the oligomer stabilizes the MOF support through the elimination of certain vibrational modes associated with the framework ligand and likely pore-filling effects in the largest MOF pore, and ii) the Lewis base functionality on the oligomer backbone binds to the surface of the Pd NPs, thus, increasing their activity and inhibiting their aggregation. Several complementary spectroscopic (IR, XPS, Raman spectroscopy) and computational tools (pore space and topology analysis, molecular mechanics, and density functional theory simulations) were used to describe the nature of the MOF-oligomer interaction and identify the most likely location of the polymer within the MOF pore.
Double Paddle-Wheel Enhanced Sodium Ion Conduction in an Antiperovskite Solid Electrolyte
Authors: Tsai Ping-Chun , Mair Sunil , Smith Jeffrey , Halat David , Chien Po-Hsiu , Kim Kwangnam , Zhang Duhan , Li Yiliang , Yin Liang , Liu Jue , Lapidus Saul , Reimer Jeffrey , Balsara Nitash , Siegel Donald , Chiang Yet-Ming
Published: September 2022

Antiperovskite (AP) structure compounds (X3AB, where X is an alkali cation and A and B are anions) have the potential for highly correlated motion between the cation and a cluster anion on the A or B site. This so-called “paddle-wheel” mechanism may be the basis for enhanced cation mobility in solid electrolytes. Here we show, through combined experiments and modeling, the first instance of a double paddle-wheel mechanism, leading to fast sodium ion conduction in the antiperovskite Na3-xO1-x(NH2)x(BH4). As the concentration of amide (NH2-) cluster anions is increased, large positive deviations in ionic conductivity above that predicted from a vacancy diffusion model are observed. Using EIS, PXRD, synchrotron XRD, neutron diffraction, AIMD, and NMR, we characterize the cluster anion rotational dynamics, and find that cation mobility is influenced by the rotation of both NH2- and BH4- species, resulting in sodium ion conductivity a factor of 102 higher at x = 1 than expected for the vacancy mechanism alone. Generalization of this phenomenon to other compounds could accelerate fast ion conductor exploration and design.
Hydride-Enhanced Plating and Stripping of Aluminum from Tri-flate -Based Organic Electrolytes
Authors: Slim Zaher , Menke Erik
Published: September 2022

In the quest for developing rechargeable aluminum (Al) batteries, reversible Al electrodeposition in the absence of active-halide components (haloaluminate complexes such as, Al2Cl7–, AlCl4–, solvated AlCl3, and halide-anions such as, F–, Cl–) is considered an immense challenge. For this reason, the choice of electrolyte has been primarily limited to the highly corrosive chloroaluminate systems based on aluminum trichloride (AlCl3). In this work, we demonstrate reversible room-temperature Al plating from an active-halide-free (AHF) organic electrolyte based on aluminum trifluoromethanesulfonate (Al(OTF)3) and compare it to the AlCl3-based organic electrolytes. Cyclic voltammetry measurements on a gold working electrode reveal oxidative stability of ca. 1.8 V (vs Al/Al3+). From insights obtained by DFT and FTIR, ionic speciation in the electrolyte is explored, and mechanisms for the underlying electrochemical processes in the OTF–-based electrolytes are proposed. Al electrodeposition and stripping were confirmed by optical microscopy, scanning electron microscopy (SEM) and X-ray Diffraction (XRD) spectroscopy. Characterizing the Al deposits from either the OTF–- or the Cl–-based electrolytes via depth-profile X-ray Photoelectron Spectroscopy (XPS) analyses, we find that these deposits consist of metallic Al, aluminum oxide (Al2O3), and either aluminum trifluoride (AlF3) or aluminum trichloride (AlCl3) contaminants arising from a reaction with the electrolyte components which occurs during the electrodeposition process.
Accessing diverse azole carboxylic acid building blocks via mild C-H carboxylation: Parallel, one-pot amide couplings and ML-guided substrate scope design
Authors: Felten Stephanie , He Cyndi Q. , Weisel Mark , Shevlin Michael , Emmert Marion H.
Published: September 2022

This manuscript describes a mild, functional group tolerant, and metal-free C-H carboxylation that enables direct access to azole-2-carboxylic acids, followed by amide couplings in one pot. This sequence accesses a large variety of azole-2-amides, demonstrating the significant expansion of the accessible chemical space, as compared to previously known methodologies. Key to the described reactivity is the use of silyl triflate reagents, which serve as reaction mediators in C-H deprotonation and stabilizers of (otherwise unstable) azole carboxylic acid intermediates. A diverse azole substrate scope designed via ma-chine learning-guided analysis demonstrates the broad utility of the sequence. DFT calculations provide insights into the role of silyl triflates in the reaction mechanism. Transferrable applications of the protocol are successfully established: (i) A low pressure (CO2 balloon) option for synthesizing azole-2-carboxylic acids without the need for high-pressure equipment; (ii) the use of 13CO2 for the synthesis of labeled compounds; and (iii) isocyanates as alternative electrophiles for direct C-H amidation. Fundamentally, the reported protocol expands the use of heterocycle C-H functionalization from late-stage functionalization applications towards its use in library synthesis. It provides general access to densely functionalized azole-2-carboxylic acid building blocks and demonstrates their one-pot use in diversifying amide couplings.
La imagen tricontinental. La Feminidad, el Che Guevara y el Imperialismo a través del arte gráfico de la OSPAAAL
Authors: Garcia Alberto
Published: September 2022

Los estudios y las líneas de investigación existentes en torno a la Organización de Solidaridad de los Pueblos de Asia, África y América Latina y el diseño Tricontinental son relativamente recientes en el campo de la historia. No existe ninguna obra que haya ahondado en los materiales recogidos dentro de los más de ciento ochenta y cuatro números publicados por la revista Tricontinental hasta el momento. El presente estudio, que profundiza en la historia de la organización y en el análisis de tres modelos representacionales concretos del arte gráfico Tricontinental, aspira a ofrecer nuevas claves interpretativas en torno a la Feminidad del Sur-Global, la imagen de Ernesto Che Guevara y el Imperialismo desde una óptica alternativa escasamente trabajada hasta el momento en el ámbito de la investigación histórica.
Simulation of Heat Transfer in Single-Crystal Lithium Niobate in Interaction with Continuous-Wave Laser Radiation
Authors: Protektor Denys O. , Lisin Denys O.
Published: September 2022

The paper presents the simulation results of heat transfer in single-crystal lithium niobate (LiNbO3) in the form of cylinder of diameter mm and height mm in interaction with continuous-wave laser radiation with the output power of W and the wavelength of nm. The density of the LiNbO3 crystal is kg/m3; the thermal conductivity along the [001] direction is W/(m×K); the thermal conductivity in the (001) plane is W/(m×K); the specific heat at constant pressure is J/(kg×K); the absorption coefficient is %/cm @ 1064 nm. The laser beam propagates along the optical axis of the crystal. The laser beam intensity profile is represented as a Gaussian function, and the absorption of laser radiation of the single-crystal lithium niobate is described by Beer-Lambert’s law. The numerical solution of the non-stationary heat conduction problem is obtained by meshless scheme using anisotropic radial basis functions. The time interval of the non-stationary boundary-value problem is 2 h 30 min. The results of numerical calculations of the temperature distribution inside and on the surface of the single-crystal lithium niobate at times s are presented. The time required to achieve the steady-state heating mode of the LiNbO3 crystal, as well as its temperature range over the entire time interval, have been determined. The accuracy of the approximate solution of the boundary-value problem at the n-th iteration is estimated by the value of the norm of relative residual . The results of the numerical solution of the non-stationary heat conduction problem obtained by meshless method show its high efficiency even at a small number of interpolation nodes.
Effect of Parasitic Parameters and Environmental Conditions on I-V and P-V Characteristics of 1D5P Model Solar PV Cell Using LTSPICE-IV
Authors: Shafi Muhammad Aamir , Khan Muneeb , Bibi Sumayya , Shafi Muhammad Yasir , Rabbani Noreena , Ullah Hanif , Khan Laiq , Mari Bernabe
Published: September 2022

In this research work, the electrical simulation of 1D5P model solar cell is done using LTSpice-IV simulation software. In this work effect of environmental conditions i.e temperature, solar irradiance, and parasitic parameters i.e series as well as shunt resistances was carried out. It has been discovered that as temperature increases the performance of solar cell decrease because temperature causes to increase the recombination phenomenon and hence lower the performance. However, when the temperature rises from 00C to 500C, the I-V and P-V curves move to the origin showing the negative effect of increasing temperature on the solar cell. Solar irradiance has major role on the performance of solar cell. As solar irradiance increases from 250 Wm-2 to 1000 Wm-2, the performance of solar cell increases accordingly and I-V as well as P-V curve moves away from the origin. It is concluded that for different series resistances, I-V along with P-V characteristic of 1D5P model solar cell varies, as at 0.02Ω series resistance, a maximum short circuit current and maximum power is obtained. But when series resistance increased up 2 ohm only, the I-V and P-V curves moves to origin drastically. Shunt Resistance is the path of reverse current of the cell. As the shunt resistance increases, the path for reverse current decreased, hence all current goes to load, hence maximum power is obtained. Similarly when the value of shunt resistance decreased, the voltage-controlled section of I-V characteristics curve is moved closer to the origin hence reduced the solar cell performance. It's critical to understand how different factors affect the I-V and P-V characteristics curves of solar cells. The open circuit voltage, short circuit current and maximum power is all variable. The influence of these factors may be extremely beneficial when tracking highest power point of a solar cell applying various methods.
A CONSTITUIÇÃO DO CAMPO CIENTÍFICO DA QUÍMICA NO BRASIL E SUAS DERIVAÇÕES PARA A FORMAÇÃO DE PROFESSORES DE QUÍMICA
Authors: Silva Francisca das Chagas Alves , Mesquita Nyuara Araújo da Silva
Published: September 2022

O objetivo do artigo é discutir as relações de força e as disputas por capital, o poder no campo, a hierarquia das áreas de conhecimento no Campo Científico da Química (CCQ) e na constituição do habitus químico. Com isso, intentamos compreender o papel da docência nesse espaço assentado na teoria dos campos de Pierre Bourdieu. As contribuições do autor são utilizadas como referencial metodológico com base no método praxiológico. As razões que podem explicitar a estrutura do CCQ no Brasil têm origens na tradição histórica do caráter experimental confirmado pela estruturação do campo, suas práticas, crenças e na divisão em subcampos Tecnológico e de Formação de Professores de Química, o que revela as relações de poder nesse espaço. O CCQ mantém e reproduz a valorização da pesquisa que se volta à formação de bacharéis, considerados exímios pesquisadores que influenciam o ensino e a formação de professores de química. Os estudos contemporâneos do subcampo da formação de professores de química se debruçam para desvelar as marcas e tensões do habitus químico que vem a comprometer a identidade docente.
Improving Cutting Tool Selection in Milling Processes Using Early Cost-Base Valuation
Authors: Tanaya Prianggada Indra
Published: September 2022

Selecting cutting tools for a milling process is crucial to determine the optimal cut. Minimizing milling process-cost is one of the most common optimization objectives, and thus it determines the best cutting tool to be used. However, the chosen cutting tool might not bring the optimal result based on the tool’s cost. Therefore, a valuation method based on the process and cutting-tool costs results were developed and analyzed to improve the cutting tool selection process.  A specific rough-milling operation was entered to the quick cost-estimation and optimization application, and several cutting-tools were compared based on the process-cost by each tool. Using a weight-based analysis on both process-cost and tool-cost changes the cutting-tool options' initial rankings. This study showed that using different weight ratios altered the order of the most suitable cutting tools. Another finding revealed in this study is how deflection constraint affected the rank of cutting tool selection. Thus, knowing the proper limit of deflection is crucial to validate the cutting tool selection outcome.
PERBAIKAN KUALITAS PRODUK TAHU BANDUNG DI TAHU NR MENGGUNAKAN METODE SEVEN TOOLS DAN HEART
Authors: Satya Egar Naufal Ari Satya , Wahyudin Wahyudin , Sari Rianita Puspa
Published: September 2022

Tahu NR  adalah usaha pabrik kecil yang memproduksi tahu bandung, dimana permasalahan yang sering terjadi pada Tahu NR yaitu permasalahan kualitas produk tahu bandung seperti cacat tekstur, kotor, dan warna. Karena permasalahan tersebut maka diperlukan pengendalian kualitas pada produk tahu bandung. Tujuan penelitian ini yaitu mengetahui faktor-faktor apa saja yang menyebabkan cacatnya produk tahu bandung serta mengidentifikasi kegiatan yang memiliki probabilitas kesalahan pada pekerja dalam proses produksi tahu bandung sebagai sebagai dasar untuk memberikan usulan perbaikan dengan seven tools dan metode HEART. Hasil penelitian ini menunjukkan bahwa faktor yang mempengaruhi cacatnya produk tahu bandung yaitu faktor manusia, mesin, metode, material, dan lingkungan. Faktor manusia merupakan faktor yang paling dominan karena hampir seluruh proses produksi dilakukan manual, jumlah pekerja yang sedikit dengan jumlah permintaan yang banyak, serta seringnya pergantian pekerja. Seluruh kegiatan pada proses produksi memiliki probabilitas kesalahan, hal ini disebabkan karena hampir seluruh proses produksi pada Tahu NR dilakukan secara manual oleh pekerja. Probabilitas kesalahan paling besar terdapat pada proses pencetakan yang memiliki potensial eror proses cetak tahu yang tidak sempurna yang dapat mengakibatkan produk tahu cacat pada tekstur dengan nilai HEP 0,311.