bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimentação investigativa no ensino-aprendizagem de conhecimentos químicos socialmente relevantes
Authors: Nunes João Batista Mendes , Gonçalves Terezinha Valim Oliver
Published: July 2022

Esta é uma pesquisa qualitativa, na modalidade narrativa, que tem como objeto investigativo a experiência humana e considera as vozes dos participantes como dados vivos dos fenômenos investigados, valorizando que nós, seres humanos, somos contadores de histórias. A experiência investigada nesta pesquisa ocorreu em uma turma do ensino médio, no Clube de Ciências da Universidade Federal do Pará (CCIUFPA). Tratamos da experimentação investigativa no ensino de química, discutindo a respeito de sua utilização como estratégia pedagógica para o ensino-aprendizagem de conhecimentos químicos socialmente relevantes. Objetivamos compreender em que termos a experimentação investigativa pode ser utilizada no processo de ensino-aprendizagem de conhecimentos com relevância social, tal como dito. Como resultado, evidenciamos que para a experimentação investigativa ser utilizada com vistas ao ensino-aprendizagem de conhecimentos químicos socialmente relevantes é necessário que o professor assuma a posição de mediador e os estudantes participem ativamente, imersos no processo em que a investigação parta de uma problemática situada, vivida pelos estudantes em seu meio social, que pode ser construída por problema ambiental e/ou social. Esse tipo de experimentação pode ser uma possibilidade pedagógica para o desenvolvimento de conhecimentos químicos socialmente relevantes e para formação de cidadãos críticos e ativos na comunidade em que se inserem.
IDENTIDADE MIDIÁTICA DOCENTE: OS REFLEXOS DA CULTURA DIGITAL NA IDENTIDADE DOS PROFESSORES
Authors: Lostada Lauro Roberto , Cruz Dulce Márcia
Published: July 2022

Com a cultura digital, os professores vêm sendo pressionados para inovar suas práticas, mesmo estando a serviço de uma instituição que ainda tem como meta a transmissão do conhecimento e que resiste, por diversos fatores, às mudanças que invadem os demais âmbitos da vida moderna. Neste sentido, o objetivo deste artigo é problematizar o conceito de identidade (profissional) docente através das demandas da cultura digital e de uma nova conformação da escola que podem estar implicando numa mudança da (auto)percepção do professor na contemporaneidade. Como exemplo apresentaremos os resultados de um curso a distância de formação docente que teve como metodologia uma proposta de autorreferenciamento por meio de narrativas autobiográficas. Os resultados mostraram que parece estar em construção uma identidade midiática docente (IMD) encontrada no perfil dos professores como resposta à tensão promovida pelas mídias digitais na escola. O estudo concluiu que a identificação dessa IMD no perfil dos professores em formação pode levar os cursos a apresentarem propostas de reflexão e de revisão de práticas midiáticas mais voltadas às suas necessidades de incorporar a produção crítica e criativa das mídias no seu cotidiano profissional, indo além do mero consumo.
Desafios pedagógicos e as especificidades na formação de professores e professoras na Licenciatura em Educação do Campo da Ufes
Authors: Gonçalves Duarte Roberta , Monteiro do Amaral Débora
Published: July 2022

Este artigo apresenta resultados de uma pesquisa sobre os desafios da permanência estudantil no curso de Licenciatura em Educação do Campo – campus Goiabeiras da Universidade Federal do Espírito Santo, uma graduação caracterizada pela formação multidisciplinar por área de conhecimento e pela alternância de tempos e espaços formativos. Neste recorte, buscou-se apresentar os princípios desta Licenciatura, atrelando-os a alguns desafios pedagógicos elencados pelos discentes. Apesar de não se relacionarem diretamente à permanência estudantil, tais desafios desdobram-se em importantes reflexões acerca da natureza do curso e a forma como os estudantes o percebem. O referencial teórico-metodológico utilizado baseia-se em Paulo Freire e em teóricos da educação popular. Para produção de dados foram utilizados questionários, entrevistas individuais e coletivas e análises compartilhadas, conforme os pressupostos da pesquisa participante. Sobre os desafios pedagógicos do curso, a pesquisa mostrou que os discentes possuem visão ainda fragilizada sobre a formação em Alternância e o princípio da interdisciplinaridade, refletindo a dificuldade desta graduação para a atuação não fragmentada a partir do trabalho coletivo. Todavia, no tocante às possibilidades de transformação, os resultados apontam que esta Licenciatura tem contribuído para a ruptura de preconceitos e mudança de práticas pessoais com vistas à emancipação social.
Entre o quilombo e a Educação Infantil: os (des) encontros das crianças quilombolas nos entremeios desses contextos
Authors: Paula Elaine de
Published: July 2022

Este artigo contempla parte das reflexões realizadas a partir de uma pesquisa de doutorado em educação desenvolvida em dois quilombos e em duas salas de Educação Infantil públicas no estado de Santa Catarina, para o que foi selecionado um grupo de sete crianças quilombolas (três meninas e quatro meninos) com idades situadas entre quatro e seis anos de idade como sujeitos principais da pesquisa.  A motivação central da investigação foi compreender e analisar, fundamentada em um estudo etnográfico, as relações educativas que as crianças quilombolas estabelecem entre si, com os adultos e com   outras crianças no espaço institucionalizado da educação infantil e no espaço da comunidade quilombola onde moram. A base teórica direcionou-se para uma interlocução entre os campos da Pedagogia, Sociologia da Infância e Antropologia da Criança. A pesquisa evidencia que as crianças quilombolas sofrem constrangimentos na relação com as demais crianças e que os professores têm dificuldade de lidar com as diferenças culturais no espaço institucionalizado. Por fim, a pesquisa evidencia um alto grau de cumplicidade, autonomia e criação entre as crianças nos quilombos pesquisados e demostra que suas formas de expressão ou de sociabilidade podem suscitar outras maneiras de pensar a educação institucionalizada.   Palavras-chave: Criança Quilombola; Quilombo; Educação Infantil; Relações Educativas.
EDUCAÇÃO PERMANENTE EM SAÚDE: CONCEPÇÕES E PRÁTICAS DE FACILITADORES
Authors: Fakhouri Ana Paula , Francischetti Ieda , Vieira Camila Mugnai
Published: July 2022

A aplicação da Educação Permanente em Saúde (EPS) solicita a interlocução de um facilitador cuja ação repercute na efetividade da Política de EPS. O objetivo desta pesquisa foi analisar as atuais concepções e práticas dos facilitadores de Educação Permanente formados pelo Curso de Formação de Facilitadores em EPS por uma agência parceira oficial do governo. Tratou-se de uma pesquisa de campo exploratória descritiva com abordagem quanti-qualitativa, com 31 indivíduos que anteriormente concluíram satisfatoriamente o curso, afim de se avançar em seus processos de capacitação. Os resultados alternam entre concepções adequadas e superficiais, confusão de modelos pedagógicos e apontam distância entre a teoria e a prática. Sugere-se que a formação de facilitadores de educação permanente para o Sistema Único de Saúde seja seguida por processos pedagógico e avaliativo constantes a fim de assegurar o desenvolvimento desta prática.
SOCIALIZAÇÃO ÉTNICO-RACIAL NA PERSPECTIVA DOS PROFESSORES DA EDUCAÇÃO BÁSICA
Authors: Matos Patrícia Modesto , França Dalila Xavier de
Published: July 2022

A presente pesquisa analisou se os docentes consideram que o racismo causa efeitos negativos na trajetória escolar dos discentes negros, bem como investigou se a identidade étnico-racial do professor afeta as práticas que promovem a igualdade racial. Os 87 docentes, que atuam na educação básica, colaboraram com o estudo preenchendo um questionário autoaplicável. Os dados foram analisados por meio de uma análise de mediação moderada, utilizando-se a cor da pele do professor como variável preditiva, o uso de estratégias de socialização étnico-racial como variável dependente e a percepção de que o racismo prejudica o desempenho escolar de alunos negros como variável mediadora. Os dados evidenciam que a percepção de que o racismo prejudica o desempenho escolar de alunos negros é a variável subjacente à relação entre a cor do docente e o uso de estratégias de socialização voltadas para a transmissão de mensagens positivas sobre o negro por parte do professor.
اليهود ودورهم في الحياة السياسية في ظل حكم الخانيات المغولية (603-923ه/ 1207-1517م)
Authors: Yousif Tawfeeq Rashid , Ahmed Khatab Ismael
Published: July 2022

مارس اليهود أدواراً سياسية في مراحل تاريخية مختلفة قبل مجئ المغول، في ظل الدولة العباسية، نتيجة سياسة التسامح التي إنتهجها العباسيون تجاه الأقليات الدينية، وقد تولت شخصيات يهودية مناصب سياسية مهمة، في الدولتين العباسية والفاطمية. كذلك شهد اليهود في ظل المغول ظهور أمراء ووزراء منهم، من كانوا يقومون مقام حاكم الدولة في إدارة أمور اليهود، كطائفة مستقلة في السياسة والمال، ومن المعلوم أنه لم يكن لليهود دولة مستقلة ذات جغرافية خاصة بها قبل مجئ المغول، سوى ما تبقى من دولة الخزر في قوقازيا. وقد استفاد اليهود من الإحتفاظ بمراكزهم السياسية والاجتماعية، لإمتهانهم الحرف والمهن المهمة، للبقاء على قيد الحياة، لأن المغول لم يعمدوا إلى قتل الحرفيين وذلك للإستفادة من خبراتهم، وقد عاش مئات الآلاف من اليهود في الدولة التيمورية، على العموم فإنه أصاب اليهود ما أصاب عامة الشعب من ويلات الحروب، ولكن مع ذلك فقد بقيت أعداد كبيرة من اليهود على قيد الحياة، الى حقبة ما بعد الإمبراطورية التيمورية. لدراسة الموضوع بصورة علمية أكاديمية، فقد تم تقسيمه على تمهيدوثلاثة محاور والخاتمة، هي: دراسة أحوال اليهود ودورهم في الحياة السياسية في ظل حكم ثلاث من الخانيات المغولية في بقاع مختلفة، وتمثلت تلك الخانيات بخانية القفجاق (القبيلة الذهبية)(1)، في الخزر، والخانية الجغتائية(2)، في تركستانوأقليم خراسان، وأخيراً الدولة الإيلخانية المغولية في إيران.
رەخنەیا زمانڤانی بۆ رۆمانا کۆچۆ: تیورا گەهاندنا زمانیا رومان یاکوبسنی
Authors: Mohammed Hamdya Hassan
Published: July 2022

پروسێسا گەهاندنێ وەك پێدڤیەكا سەرەكی د ژیانێدا، بوویە جهێ گرنگیپێدانا گەلەك ژ تیورڤانان، ئەڤجا تیور د بوارێن جۆراوجۆردا ل دور ڤێ پروسێسێ داناینە و، ژبەر گرنگیا رۆلێ زمانی، هەولدان بۆ ڤەكولینا زمانی ب مەبەستا دیاركرنا ئەركێن وی د پروسێسا گەهاندنێدا ژ بابەت و ئاریشێن گرنگبوویە، ئەوژی ب هژمارتنا زمانی ب هێزترین و بەرفرەهترین ستوینێن گەهاندنێ‌ د ناڤبەرا مروڤاندا، لەورا مروڤی بەردەوام هەولدایە شێواز و ڕێكێن ڤێ‌ پروسێسێ د گەل كەسێن دەوروبەردا پێشبێخیت و بەرەڤ باشتر ببەت. زانایێن زمانڤانی تیور د بوارێ گەهاندنا زمانیدا داناینە، ژ وان ژی تیورا ئەركێن زمانیا (رومان یاكوبسن)یە ب مەبەستا بەرزكرنا شێواز و ڕێكێن زمانی بۆ رابوون ب گەهاندنا ئەكتیڤانە د ناڤبەرا مروڤاندا.دانانا(یاكوبسن)ی بۆ تیورا ئەركێن زمانی جەختكرنە ل سەر بابەتێ ئەدەبیەتا بەرهەمێ ئەدەبی د پروسێسا گەهاندنا زمانیدا یا كو ل سەر شەش ئەركان دابەشکری، ئەوژی:ئەركێ فرێكەری هەلچوون/دەربرینە و ئەركێ وەرگری تێكەهاندن/كاریگەربوونە و ئەركێ پەیامێ‌ شعریەت/ ئیستاتیكایە، ئەركێ چارچوڤە بۆڤەگەری/رەوانەكرنێ‌ بجهدهینیت، ئەركێ‌ كەنالێ گەهاندنێ‌/ئاگەهداركرن و بەردەوامیدانە ب پروسێسا گەهاندنێ‌، ئەركێ كودی میتازمانیە. د ئەنجامدا مەبەست ژ ئەركێ شعرییەتێ‌ ل دەڤ (یاكوبسن)ی، زمانێ ئەدەبی زمانەكێ‌ تاكانەیە خودان بهایەكێ جوان و ئیستاتیكیێ تایبەتە ژ زمانێ ئاسایێ رۆژانە جودایە، زێدەباری دیاركرنا بهایێن ئیستاتیكی د ناڤ تێكستیدا ب ڕێكا وێنێن هونەرێن لێكچواندنێ‌ و خواستنێ‌ و تایبەتمەندیا هەڤتەریبی...هتد.
Pemodelan Opsi Saham Karyawan Menggunakan Pendekatan Top-Down
Authors: Megawati Megawati , Artiono Rudianto
Published: July 2022

Abstrak

Opsi saham merupakan suatu perjanjian yang memungkinkan pemiliknya untuk melakukan call (menjual) atau put (membeli) suatu saham dengan harga yang telah ditentukan pada waktu tertentu. Salah satu jenis opsi saham adalah opsi saham karyawan (OSK) atau yang lebih dikenal dengan Employee Stock Options (ESO). Pemegang OSK dapat melakukan exercise opsi lebih awal setelah melewati vesting period dan secara bertahap melakukan exercise terhadap opsi yang tersisa sebelum maturity time. Penelitian ini bertujuan untuk memodelkan harga opsi saham karyawan melalui suatu analisis fundamental yakni analisis yang mempelajari hal-hal yang berhubungan dengan kondisi keuangan atau perusahaan dan umumnya digunakan untuk menentukan saham yang ingin dijual atau dibeli dengan menggunakan pendekatan top-down. Pendekatan ini diperlukan oleh perusahaan yang memiliki saling ketergantungan antar unit operasi dalam rangka meningkatkan koordinasi antara manager dan karyawan. Perspektif perusahaan untuk menentukan harga OSK umumnya melibatkan banyak opsi dengan jangka waktu lama. Untuk menghitung harga OSK, disajikan dua metode numerik yaitu transformasi fast fourier dilanjutkan dengan metode beda hingga untuk memecahkan sistem persamaan diferensial parsial terkait dengan opsi vested dan unvested. Metode numerik yang diusulkan tidak hanya berlaku untuk pengeluaran harga OSK, tetapi juga berguna untuk memahami efek gabungan dari intensitas exercise dan risiko pemutusan hubungan kerja pada penentuan harga OSK.

Kata Kunci: Employee Stock Options, Pendekatan Top-down, Fast Fourier Transformation, Metode Beda Hingga.  

  

Abstract

A stock option is an agreement that allows the owner to call (sell) or put (buy) a stock at a predetermined price at a certain time. One type of stock options is employee stock options (OSK) or better known as Employee Stock Options (ESO). OSK holders can exercise options earlier after the vesting period and gradually exercise the remaining options before maturity. This study aims to model the price of employee stock options through a fundamental analysis, namely an analysis that studies matters relating to the financial condition of the company and is generally used to determine which shares to sell or buy using a top-down approach. This approach is needed by companies that have interdependence between operating units in order to improve coordination between managers and employees. The company's perspective for pricing OSK generally involves many long-term options. To calculate the OSK price, two numerical methods are presented, namely the fast Fourier transformation followed by the finite difference method to solve the system of partial differential equations related to vested and unvested options. The proposed numerical method is not only applicable to OSK pricing, but is also useful for understanding the combined effect of exercise intensity and risk of termination of employment on OSK pricing.

Keywords: Employee Stock Options, Top-down Approach, Fast Fourier Transformation, Finite Difference Method.
POHON-POHON RENTANG INDEPENDEN DALAM BEBERAPA GRAPH BERATURAN
Authors: Priyambodo Otniel Sukma , Budayasa I Ketut
Published: July 2022

Pohon-pohon perentang T1 ,T2 ,...,Tk pada graf G disebut pohon-pohon perentang independen lengkap jika pohon-pohon perentang tersebut perpasang pisah-sisi dan pisah-titik secara internal. Fokus permasalahan dalam artikel ini adalah mencari pohon perentang independen lengkap pada graf sedemikian hingga pohon-pohon perentang tersebut pisah-sisi dan pisah-titik secara internal.
Analisis Psikoakustik Gending Tari Topeng Gunungsari
Authors: Kurniawan Candra , Finahari Nurida , Soebiyakto Gatot
Published: July 2022

Pertunjukan tari merupakan komunikasi karya seni antara penari dengan penontonnya. Keunikan kesenian daerah merupakan bentuk kekayaan budaya lokal. Salah satu tari tradisional Kabupaten Malang adalah Tari Topeng Gunungsari. Bentuk respon penari terhadap gending pengiringnya dapat dianalisis dari aspek psikoakustik. Penelitian ini bertujuan untuk menganalisis psikoakustik gending tari topeng Gunungsari.  Analisis suara dilakukan menggunakan aplikasi Wave Surfer untuk mendapatkan sinyal temporal dan spektral. AplikasiWavePad digunakan untuk mendapatkan tampilan suara dalam mode FFT (fast fourier transform) untuk spektral dan TFT (time frequency transform) untuk spektral. Selanjutnya, aplikasi Audacity digunakan untuk menumerisasikan sinyal suara. Sampel diambil masing-masing sebanyak 100 data yang diambil dari grafik per menit. Hasil numerisasi diolah menggunakan Microsoft Excel untuk mendapatkan persamaan garis tren grafik. Hasil penelitian menunjukkan bahwa gending Gunungsari memiliki karakteristik spektral dan temporal yang berpola polinomial. Pola temporal sesuai dengan regresi polinomial derajat 6 sedangkan pola spektralnya berderajat 3 atau 4.
Desain Penelitian Musik di Era Digital (Sebuah Tinjauan Studi Literatur)
Authors: Hidayatullah Riyan
Published: July 2022

This article seeks to investigate various literatures that address the issue of music research methodology, discussed in the case of Indonesia. The main background in writing is a lack of sources on music research methods. Especially in the digital age, when there is an abundance of data. A separate investigation is required into the procedures for conducting research, managing data, and understanding the research methods to be used. This article is a review of the literature that employs the exposition method to present general and specific concepts from previous research. The sources used include the outcomes of debates about art and music research. Music research concepts are discussed and reviewed in reference materials, resulting in a new understanding of the subject. The aim is to expand conceptual ideas about music research paradigms and their relevance in the digital age. The principles of art and music research methodology are addressed. Following that, we'll talk about how to design music research in the digital age. The result suggest, the rapid technological advancements are forcing music researchers to revise how data is collected and validated. Data from the internet is no longer used as a complement, but rather as the primary source of capital for digital-based music research design. The components of research in a coherent and logistical way to find answers to research problems are the focus of music research design in the digital age. Make use of relevant apps and websites, as well as big data.
The Effect of Learning Gamelan Art on Emotional Intelligence
Authors: Jarmani Jarmani
Published: July 2022

Teenager are increasingly confronted with emotional issues, demanding a solution such as adolescent emotional intelligence development. Traditional Indonesian music, notably Javanese gamelan, can help teenager develop emotional intelligence. People who follow a set of rules and limits undertake Javanese gamelan exercises. When practicing gamelan, the individual must hit his gamelan tool and listen to the gamelan played by his colleagues in the gamelan group to generate a harmonic gamelan sound. This study used quantitative approaches in conjunction with a sample size of 135 UWK Surabaya students. The Java Gamelan Music Exercise Intensity Scale (r = 0.848) and the Emotional Intelligence Scale (r = 0.772) are used as data-gathering instruments in the sampling technique. The product-moment correlation method was used to analyze the data, and the result was 0.550. The study's findings revealed a link between the severity of Javanese gamelan music training and emotional intelligence, with the higher the intensity of Javanese gamelan music training, the higher the emotional intelligence. The intensity variable of Javanese gamelan music training can contribute 30.25 percent to the emotional intelligence variable. In contrast, the remaining 69.75 percent is influenced by elements other than the intensity variable of Javanese gamelan music training. Beyond the intensity variables of Javanese gamelan music training, the family, non-family, physical, and psychological environments all have a role.
ROS-Mediated Autophagic Death in Glioblastoma Cells Upon Treatment by Human Recombinant Arginase I (Co)- PEG5000 [HuArgI (Co)-PEG5000]. (c2021)
Authors:   ,   Lebanese American University, Abdel Khalek Maya
Published: July 2022

Targeting cancers; that exhibit amino acid auxotrophy, such as glioblastoma multiforme, through starvation of amino acids is becoming a promising therapy. The efficiency of this targeted therapy is based on the idea of killing cancer cells without damaging normal cells that are capable of synthesizing specific amino acids being targeted. In this study, we examine the mechanism of HuArgI (Co)-PEG5000-induced cell death in both partially and completely auxotrophic GBM cell lines. Our results first showed a significant increase in HuArgI (Co)-PEG5000 treated cells for both U251 and A172 in autophagosome formation; suggesting activation of autophagy in response to arginine deprivation. Secondly, the results also showed in both U251 and A172 cells, an increase in the percentage of the survival of cells co-treated with HuArgI (Co)-PEG5000 and chloroquine; indicating that autophagy is contributing to cell death at late time points in GBM cells. Moreover, only U251 cells showed an overexpression in Argininosuccinate Synthetase-1 (ASS-1); the main key player in L-arginine biosynthesis, in case of arginine deprivation and the rescue was detected upon addition of exogenous L-citrulline. Addition of N-acetyl-cysteine (NAC); being a reactive oxygen species (ROS) scavenger, led to a significant decrease in the cytotoxicity of arginine deprivation to U251 and A172 cells, indicating that ROS generation reversed the cytotoxicity of arginine deprivation to GBM cells. Finally, we have also shown that in U251 cells the autophagosome formation; thus, death by autophagy is mediated by ROS generation. Taken together, ROS plays an essential role in the mechanism of autophagy activation in some arginine deprived GBM cells, where we have ROS-induced autophagy.
The Impact of Personal Values on Innovative Behavior, The Mediating Role Of Engagement. (c2021)
Authors:   ,   Lebanese American University, Ammar Mariam
Published: July 2022

Person-job fit is a vital term that requires matching an individual's experience, skills, and abilities to the role specifications. Person-to-job fit is often viewed as an important element in the workplace. Employees that match the work requirements have more opportunities to apply for employment, resulting in improved job engagement and productivity. Employee satisfaction will only be reached at work if the employee is the right fit for the role and if the employees’ values match the values of the company he is working in. Employees want a match of beliefs, ambitions, and desires. The nature of this research is quantitative analysis in which the relationship between the chosen variables for this research has been measured using a self-administered questionnaire. The distribution of surveys is selected as a tool of this analysis since it is considered to be the most efficient way to collect data. The surveys have been distributed using Google forms through emails and social media for data collection. The results found a positive relationship between personal values and innovative behavior and that engagement mediates the relationship among these variables.
Stock Price Prediction via Sentiment Analysis on News Corpora. (c2021)
Authors:   ,   Lebanese American University, Al Watchi Al Hayek Maher
Published: July 2022

The notion of stock market gains is an enticing one. For researchers, however, succeeding in developing a system that can predict market movements can be in and of itself an even more rewarding feat. With the rise of arti cial intelligence in general, and machine learning-based sentiment analysis in particular, the dream of stock market prediction has never been closer to our grasp. By leveraging the massive amounts of news data being cranked out daily, we can gauge the market mood via sentiment analysis techniques. We develop a novel version of the random forest classi er infused with the powers of collocation and concordance, both of which borrowed from the eld of linguistics. Our experimental analysis yields insightful and impressive results compared to other works in the literature. Our novel model achieves a whopping 85% accuracy in predicting stock movements.
The Role of Perceived Supervisor Support in Moderating the Influence of Professional Isolation Experienced During COVID-19 Remote Work on Employee Engagement. (c2021)
Authors:   ,   Lebanese American University, Agopian Lori
Published: July 2022

The primary aim of this research is to study the influence of professional isolation experienced during COVID-19 remote work on employee engagement while simultaneously studying the moderating role of perceived supervisor support on this relationship. In addition, this research study analyzes the varying need for supervisor support based on age, gender and educational level. This study utilizes the need-to-belong theory as its theoretical framework. For data collection purposes, an online questionnaire was leveraged to gather data from respondents, around the world, who experienced remote work during the COVID-19 pandemic. The present study uses SPSS statistical software to investigate the relationship between the different variables. The study finds that although employee engagement may not be a function of professional isolation, for remote workers who have high levels of professional isolation, nevertheless, when supervisor support is high, employee engagement levels tend to be high too. The study recommends that organizations empower supervisors in supporting and guiding their teams virtually during times of crisis. Finally, this study recommends future research to tackle the topic in cultural context and considering additional control variables.
La afroruralidad del norte del Cauca (Colombia): Etnogénesis de las negritudes. De Monte Oscuro a la finca tradicional
Authors: Galvis Parrasi Harold
Published: July 2022

The objective of the article is to describe Afro-rurality as a historical category corresponding to a rural world that has been invisible until now in the flatlands of Northern Cauca, Colombia. Methodologically, this historical analysis uses secondary sources and is enriched by the author’s direct experience of Afro-rural territoriality in that region. This work falls in the theoretical category of black ethnogenesis, as approached in the works of Oscar Almario García, Giselle Invernon Duconge, Menara Lube Guizardi and others. Four topics are addressed: slavery and haciendas-cimarrones and palenques; ethnogenesis and Afro-rurality in the northern Cauca during the nineteenth century; dispossession of Afro rural lands in the twentieth century and the traditional farm as the symbol of northern Cauca Afro-rurality and its current context. One important outcome of this work was to give visibility to historical and territorial Afro-rurality as the product of ethnogenesis based on ethnic-cultural identity, the struggle for freedom and the traditional farm as the current reference point.
Improving The Physical Stability Of Virgin Olive Oil Mayonnaise
Authors: Coskun Melis , Argun Sinem , Kırtıl Emrah
Published: July 2022

Mayonnaise is a popular solid like sauce obtained typically from the ingredients; vegetable oil, vinegar, egg yolk, and salt. For mayonnaise production, vegetable oils with low costs are preferred. Extra virgin olive oil (EVOO), despite its high cost, is unique in that it has some very exceptional nutritional and sensorial properties and positive health promoting effects. However, EVOO mayonnaises pose some challenges in preparation and particu-larly in maintaining their stability for elevated periods. This study explored some options that could extend the shelf life of mayonnaise prepared from EVOO. For this purpose, two different stabilizer sodium alginate and gellan gum at two different concentrations (0.1% and 0.2%) were added to mayonnaise formulations, additionally ultrasound was applied at two different powers (40% and 70%) for 2 min. Rheological characterization revealed that all mayonnaise samples displayed a pseudoplastic behaviour which is desirable in condiments like mayonnaise. Particle size meas-urements revealed that oil particle diameters ranged between 2.1-25.5 μm. Real time and accelerated emulsion sta-bility measurement were in line with each other. According to these, sodium alginate resulted in mayonnaise with the highest physical stability. Real time emulsion stability measurements revealed that all samples except control main-tained their physical stability up to 20 days after preparation.
La ley Olimpia: Un punto de inflexión en la regulación normativa penal de la violencia digital y mediática en México
Authors: López Téllez Denitza , Fernández- Cuevas María Patricia , Callejas-Téllez Araceli
Published: July 2022

En este artículo se presenta un panorama de los antecedentes de la Ley denominada Olimpia, la tipificación de la violencia digital o mediática a partir del caso paradigmático de la joven Olimpia, las reformas legislativas que dieron origen a cambios y adiciones a la Ley General de Acceso de las Mujeres a una Vida Libre de Violencia, así como al Código Penal Federal. Se analizan las legislaciones de otros Estados de la república mexicana que presentaron estas adecuaciones a partir de las reformas en la materia de Violencia digital plasmadas en el Diario Oficial de la Federación, su sanción y contenido normativo. Por otra parte, en el último apartado de este trabajo se centra en el estudio dogmático donde se plasma la situación que guarda la tipificación del delito de Violencia digital en la codificación penal del Estado de Hidalgo.
Análisis de los conceptos de proceso para la descripción del comportamiento
Authors: Montes Castro Edgar Eduardo , Arce Alejandra , Cisneros Herrera Jesús , Guzmán Díaz Gelacio , Mérida Vélez Fátima Yaneth , Vazquez-Moreno Almitra
Published: July 2022

Los denominados procesos psicológicos (e.g., atención, memoria, pensamiento) han sido estudiados a través de diferentes propuestas teóricas. En cada una de estas aproximaciones se utilizan metáforas para describir al fenómeno psicológico como un proceso que tiene un inicio y un fin (i.e., la metáfora del procesamiento de la información en términos de input-output y su analogía con los sistemas computacionales). Una propuesta para el estudio del desarrollo de los procesos cognoscitivos, que hasta la fecha ha recibido bastante aceptación y criticas también, es la obra realizada por Jean Piaget. En este ensayo se describen los conceptos propuestos por Piaget para analizar un proceso entendido como el cambio en los estados de equilibrio. Se discuten estos conceptos y su pertinencia para la descripción del proceso entendido como estados y transiciones en el comportamiento de un individuo.
Niveles de cuidad en salud mental, experiencia y actuar profesional: Un estudio preliminar mexicano
Authors: Guzmán González Jesua Iván
Published: July 2022

Introducción: La psicología clínica es una rama de la psicología encargada de brindar consultoría a personas con problemáticas que comprometen su calidad de vida. La literatura ha sugerido que el mejor predictor de una atención de calidad se asocia a supervisión y preparación profesional. Se desconoce ese estatus en México. Objetivos: Realizar un sondeo del número y tipo de problemáticas atendidas por los profesionales, así como observar si la experiencia y la formación tienen un impacto al respecto de su práctica Método: Se realizó una encuesta en la federación nacional de colegios, sociedades y asociaciones de psicólogos de México, A.C. (FENAPSIME) con un instrumento para determinar el estado actual de la práctica en psicología Resultados: Existieron diferencias significativas (.05) respecto a la cantidad y severidad de problemáticas atendidas según el nivel educativo y enfoque de los participantes. Conclusión: Se motiva a diferencias asociaciones y universidades a retomar los puntos descritos por los profesionales como una primera línea de defensa para la profesionalización de la psicología.
Persistencia en las fluctuaciones asociadas al índice de concentración del ozono O3 en la ciudad de México
Authors: García Otamendi Edgar Israel , Matias Gutierres Sergio
Published: July 2022

La función de estructura Fq ( Δn ) de orden q es usada para analizar la tendencia de las fluctuaciones asociadas a los valores máximos de concentración del Ozono (MaxO3 ), relativos a seis estaciones de la base de datos de la Red Automática de Monitoreo Atmosférico (RAMA) en un periodo de 20 años, durante 1998 a 2017. Encontramos que las fluctuaciones de O3 obedecen un comportamiento de ley de potencia Fq ( Δn ) ∝ ( Δn )Hq , donde Hq =0.878 ±0.024 , Hq =0.757 ± 0.033 y Hq =0.531± 0.0535 con q= 1, 2, 3, 4, 5 para concentraciones de Ozono O3 ≥ 100, 150, 200 ppb respectivamente, exhibiendo persistencia de las series temporales analizadas con  correlaciones de largo alcance para O3 ≥ 100, 150 ppb hasta en cuatro órdenes de magnitud, mientras que para O 3 ≥ 200 ppb se acerca más a la aleatoriedad, es decir, el contaminante O3 no se está dispersando eficientemente si no que contribuye a este comportamiento de persistencia para MaxO3 ≥ 100, 150 ppb en el área de las seis estaciones de monitoreo.
Sistema de control automático basado en PLC y HMI para una máquina estribadora
Authors: Flores García Ernesto , Quezada Quezada José Carlos , Calderón Medina Rafael Víctor Hugo , González Ángeles José Manuel
Published: July 2022

Entre la gran variedad de materiales empleados en la industria de la construcción se encuentran unos elementos estructurales llamados estribos, también conocidos como anillos, que son típicamente fabricados de alambre de acero con gran grosor, denominado alambrón, que para casas habitación comúnmente es de calibre de un octavo de pulgada, el cual debe ser doblado para formar rectángulos o cuadros de diferentes medidas, propiamente los estribos, que se utilizan para abrazar, confinar y posicionar a las barras metálicas longitudinales, generalmente varillas, en el armado de columnas, castillos y trabes. Debido al esfuerzo físico considerable que se realiza para doblar manualmente tal material, así como a la alta demanda de estos elementos, en el presente trabajo se propone el desarrollo de un sistema de control para automatizar una máquina estribadora, implementando electroneumática con control basado en PLC y monitoreo mediante HMI. Este trabajo constituye un proyecto académico terminal de aplicación práctica, con enfoque a la automatización de procesos de tipo industrial.
¿La viuda negra es en realidad viuda?
Authors: Castellanos Ignacio , Urrutia Martínez Luis Ernesto
Published: July 2022

El nombre de araña viuda negra se debe a que se ha visualizado que las hembras de algunas especies de Latrodectus depredan al macho antes, durante o después de la cópula; sin embargo, no siempre es así. En este trabajo se muestra información recabada de investigaciones previas de que en el género Latrodectus, la frecuencia con la que las hembras canibalizan a los machos varía entre especies, entre individuos de una especie y depende del contexto ecológico.
Explorando el arsenal molecular de los parásitos de peces
Authors: Caña-Bozada Victor , Morales-Serna Francisco Neptalí
Published: July 2022

Los peces tienen una diversidad amplia de parásitos. Entre los más conocidos están los gusanos monogéneos, capaces de causar enfermedades y pérdidas económicas en la producción acuícola. Hay varias formas de combatir a estos parásitos, pero los resultados no son siempre satisfactorios. Entonces, es necesario continuar realizando investigaciones para encontrar formas más efectivas. Consideramos que la exploración del arsenal molecular que usan los monogéneos para atacar a los peces puede darnos pistas útiles. Entre ese arsenal están las proteínas excretoras/secretoras (PES), también conocidas como secretoma. Algunas de estas proteínas pueden ser indispensables para el parasitismo. Entonces, si encontramos esas proteínas en monogéneos, podríamos buscar fármacos para su inactivación, lo cual ayudaría a detener el desarrollo de enfermedades en el cultivo de peces.
El dulce abismo. Metáforas sobre el amor y el erotismo en Silvio Rodríguez
Authors: Rosales Ayala Silvano Héctor
Published: July 2022

Resumen

Silvio Rodríguez, trovador cubano, a los 74 años, tiene una trayectoria de más de cuatro décadas, en interacción permanente con los avatares de la sociedad cubana, de América Latina, y en muchos sentidos con la conformación de una sociedad global. En este ensayo deseamos compartir algunas ideas que pueden servir para comprender de qué manera, amor y erotismo se encuentran presentes en las canciones de Silvio, al mismo tiempo que el poeta enriquece sus significados y sus sentidos. Postulamos que, en el corpus creativo de nuestro cantor, se expresan formas poéticas que cumplen dos condiciones: sirven a propósitos específicos de enamorar, contar experiencias de vida, denunciar las trampas sociales al amor y anunciar configuraciones nuevas de amar de manera libre y plena, sin descuidar el universo de la pareja, pero ampliando los horizontes hacia la fraternidad y la trascendencia. Como ocurre con una gran variedad de expresiones artísticas, al decir de Ernst Bloch, ellas son portadoras de un excedente utópico. Amor y erotismo se proyectan hacia el futuro, un futuro que debería cumplir varias condiciones para que el amor fuera libre y el erotismo, la llama doble de la que habló Octavio Paz.
Condición corporal en ovejas Pelibuey en el trópico de México
Authors: Chay Canul Alfonso Juventino , Pérez-Hernández Rosendo , Salazar-Cuytun Rosario , Garcia-Herrera Ricardo A. , Herrera-Camacho José , López-Duran S. K.
Published: July 2022

La condición corporal (CC) es una forma de evaluar el estado de reservas corporales (principalmente reservas de grasa) que tiene un animal y puede ayudar a comprender la adecuación entre el alimento disponible y las necesidades de las ovejas a lo largo del ciclo productivo. Algunas mediciones in vivo, como el ultrasonido pueden usarse para predecir CC en ovejas Pelibuey multíparas y no gestantes.
Firma electrónica habilitada por tarjetas inteligentes para fines de seguridad
Authors: De La Cruz Vite Omar , Barrera Mora Fernando , Pérez Gómez Adidier M.
Published: July 2022

En este trabajo se describe una forma para la implementación de firma digital usando un sistema de encriptación. Específicamente, se mostrará el proceso de firma digital usando tarjetas inteligentes mediante un sistema criptográfico de llave pública, que para nuestros fines es el RSA. Esto tiene la finalidad de que la información sea transmitida de manera segura cuando se realizan las operaciones de autenticación y firma digital. Otro elemento que se aborda en este trabajo, es la definición y uso del Protocolo de Aplicación para la Unidad de Datos (APDU) que se utiliza al comunicarse de manera directa entre un lector de tarjetas y una tarjeta inteligente.
Potencial Newtoniano efectivo proveniente de mundos brana y el pozo cuántico gravitacional
Authors: Pedraza-Ortega Omar , López-Suarez Luis Alberto , Cerón-Ángeles Victoria Elizabeth , Criollo-Pérez Arturo
Published: July 2022

En las teorías de dimensiones extras, es bien sabido que el potencial gravitacional Newtoniano es modificado. En algunos modelos de mundos brana, las correcciones al potencial gravitacional Newtoniano obedecen a una ley de potencias. En este trabajo se analizará las correcciones al espectro de energía para los dos primeros estados de una partícula cuántica inmersa en un pozo cuántico gravitacional considerando que las correcciones al potencial gravitacional obedecen a una ley de potencias. Los resultados obtenidos se comparan con los datos experimentales obtenidos del experimento GRANIT, donde es medido el efecto del campo gravitacional de la Tierra en los estados cuánticos de neutrones ultra fríos. Esta comparación proporciona una cota para el parámetro del escenario de dimensiones extras.
Desbordamiento del Río Tula: más allá de las Lluvias
Authors: Castañeda-Ovando Evodio Pedro , Mendoza-Tolentino Yucundo , Añorve-Morga Javier , Nieto-Velázquez Silvia , Castañeda-Ovando Araceli
Published: July 2022

El río Tula es un cuerpo de agua en el que desembocan aguas residuales y pluviales provenientes del Valle de México y zona conurbada. Durante décadas, el río Tula ha sido objeto de múltiples investigaciones, ya que las aguas residuales se han utilizado para la irrigación de cultivos, generando problemas de salud a la población local. Aunado a esto, y debido a los fenómenos hidrometeorológicos presentados durante septiembre de 2021 en la zona centro de México, el río Tula se desbordó, lo que afectó a la población del Valle del Mezquital, causando la muerte de 16 personas y dejando pérdidas materiales importantes. Por lo que, en esta revisión se resume la relación que tienen las inundaciones con el cambio climático y socioeconómico, teniendo especial interés en el sistema de drenaje de la zona metropolitana del Valle de México y la relación que tiene con el desbordamiento del río Tula.
Bio-Psycho-Social Overview of Mexican older people in the post-confinement stage by COVID-19: Bioethical Aspects
Authors: Serrano Ruíz José Jesús , Iglesias Hermegildo Antonia Y.
Published: July 2022

In Mexico and the world, the COVID 19 pandemic took us by surprise, however, under the socioeconomic and health conditions that exist in the Mexican population, it makes the treatment of older adults even more complex. In general terms, the Pandemic should be considered a Syndemic since it encompasses both biological and social and economic aspects that complicate the care of the elderly. The economic condition of older adults is not favorable since sometimes they have to prioritize between health or eating, resulting in a poor state of health due to the lack of health care, coupled with this the number of insured older adults is minimal . These conditions result in a complicated panorama, since statistics show that the population at greatest risk in Mexico is the elderly, due to their comorbidities.
Pathologies associated to the consumption of aflatoxin M1 in dairy products
Authors: Monter Arciniega Araceli , Cruz-Cansino Nelly del Socorro , Ramírez-Moreno Esther , Zafra-Rojas Quinatzin Y. , Cervantes-Elizarrarás Alicia , Ariza-Ortega José Alberto
Published: July 2022

Milk is the most traded, processed and consumed dairy product in the world, approximately 113.7 to 150 kg per capita. However, one of the food safety and human health problems worldwide is aflatoxin M1 (AFM1), present exclusively in milk and its derivatives, because this mycotoxin is heat-resistant to common food industrialization processes and is capable of producing hepatotoxicity, carcinogenicity, genotoxicity and immunosuppression in humans, so there are international regulations that establish parameters ranging from 0.03 to 0.250 μg/kg depending on each country. The present review aims at compiling information on mycotoxins and specifically on AFM1 from its biotransformation from dairy cattle until the pathologies in humans associated with its consumption.
A real autonomous quadratic system of three differential equations with an infinite number of limit cycles
Authors: Hryn A. A. , Musafirov E. V. , Pranevich A. F.
Published: July 2022

In this paper, we consider the problem of construction of real autonomous quadratic systems of three differential equations with the nonlocal existence of an infinite number of limit cycles. This means that an infinite number of limit cycles, emerging from the focus due to the Andronov – Hopf bifurcation, can exist in the phase space not only in the vicinity of the focus and not only for parameter values close to the bifurcation value. To solve this problem we use the method of determination of limit cycles as the curves of intersection of an invariant plane with a family of invariant elliptic paraboloids. Then the study of the limit cycles of the constructed system of the third order is reduced to the study of the corresponding system of the second order on each of the invariant elliptic paraboloids. The proof of the nonlocal existence of the limit cycle and the investigation of its stability for such a second-order system is carried out by constructing a topographic system of Poincaré functions or by transforming to polar coordinates.
Partitioning the edge set of a bipartite graph into the minimal number of subgraphs isomorphic to those of a simple 4 order cycle
Authors: Duginov O. I. , Khimich S. S.
Published: July 2022

In this paper, we study the computational complexity for a problem of partitioning the edge set of a bipartite graph into the minimal number of subgraphs isomorphic to those of a simple cycle of order 4 in special graph classes. This problem is NP-hard and finds application in organizing the distribution of network packets over communication channels in the process of transmission from one router to another. We develop anO(nlogn) algorithm for solving that problem in a class of n order trees. Intractable cases of the problem are identified.
Hardware implementation of dynamic radiation therapy verification
Authors: Piatkevich M. N. , Titovich E. V.
Published: July 2022

The effectiveness of the use of modern technologies and methods of radiation treatment depends on the means of quality control of the operational parameters of the radiotherapy equipment. The development of technical means for verification of the radiation therapy plan, allowing accurate assessment of the three-dimensional dose distribution in the target, is a priority task when introducing innovative methods of radiation treatment. The aim of the work is to develop tools for assessing the three-dimensional dose distribution of radiation therapy plans with intensity modulation using the magnitude of the absolute radiation dose. The authors analyzed the existing technical means and methods for verifying radiation therapy plans on medical linear electron accelerators, and also identified their shortcomings. It is shown that these techniques for verifying the three-dimensional dose distribution do not give an accurate idea of the absolute values of the radiation dose in the target. A system and a method are proposed that allows improving the accuracy of the verification of the radiation therapy plan by using the obtained cross-calibration coefficient determined taking into account the value of the radiation output of the medical linear accelerator immediately at the time of the implementation of both this procedure and the radiation therapy session, as well as a method for verifying the plan radiation therapy with their use.
The use of the WRF numerical weather forecasting model in mode ling emergency situations at Belarusian NPP
Authors: Shamyna A. Yu. , Labokha A. K. , Ardziaka A. D.
Published: July 2022

The expediency of using Weather Research and Forecasting (WRF) numerical weather forecast model as a source of meteorological data during modeling of radioactive substances transfer in the atmosphere is considered, WRF technical details are briefly described. As the reference emergency scenario, the scenario of the maximum design accident hypothetically occurring at Belarusian Nuclear Power Plant (BelNPP) 12 UTC 21.03.2021 was chosen. Four numerical experiments with Global Forecast System (GFS) and WRF meteorological data and RIMPUFF and LASAT atmospheric diffusion models were performed in JRODOS Decision Support Systems (DSS). For each experiment, maps of underlying surface potential radioactive contamination of I131 were created. The potential contamination of the underlying surface I131 from 5 to 100 km from the BelNPP was assessed. The dependency graph of the maximum underlying surface contamination with I131 on the distance from the BelNPP was plotted based on the experiments results. The obtained results indicate the prospects of using the WRF meteorological model in the DSS at various stages of the emergency situations development at the BelNPP.
Implementation of the export potential of the Republic of Belarus in the agrifood sector in the EAEU market
Authors: Karpovich N. , Makutsenia E.
Published: July 2022

The export potential development of Belarus in the agrifood sector with the member states of the Eurasian Economic Union are considered. Export-import flows of agricultural products and food of Belarus with the EAEU countries have been comprehensively analyzed. Promising directions for expan- ding mutual trade of the Republic of Belarus with the member states of the Eurasian Economic Union in the agrifood sphere have been identified.