bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of Travel Motivation on Tourist Satisfaction on Java Island Heritage Tours
Authors: Gantina Devita , Arafah Willy , Anon Nurbaeti , Inkadijaya Rahmat , Djati Sundring Pantja
Published: September 2023

This study aims to determine the effect of travel motivation on visitor satisfaction. The object of research is Heritage Tourism on the island of Java (Sumedang, Cirebon, Solo, Yogyakarta). The research sample consisted of 400 respondents. The population of this study were tourists who had visited heritage tourism objects in the 4 cities, the number of which was unknown. The sampling technique in this study is convenience sampling, using causal research. The aims of this study were (1) to analyze the travel motivation of visitors who came to heritage tourism on the island of Java, (2) to analyze the satisfaction of visitors who came to heritage tourism on the island of Java, (3) to determine the effect of travel motivation on visitor satisfaction on heritage tourism on the island of Java. The analytical method used is descriptive and inductive analysis through simple regression analysis. The results showed that: (1) travel motivation of visitors who came to Java island heritage tourism was considered good, (2) visitor satisfaction who came to Java island heritage tourism was considered good, (3) travel motivation had a significant effect on visitor satisfaction on Java island heritage tourism.
Economic Losses through Oil Theft in Nigeria: A 4-year (2019 – 2022) Analysis
Authors: Dimkpa C. A , Chukwuma F. O , Abah Achadu M. , Tele F. M , Dimkpa I. H
Published: September 2023

The paper reviewed the economic implications of oil theft arising from vandalization of crude oil pipes, illegal petroleum refinery and bunkering in the Niger Delta region over a period of 4 years. The petroleum oil and gas industry being the highest government revenue generation in Nigeria for the sustenance of its economy became alarmed by the unprecedented rise in oil theft perpetrated by the activities of these illegal refineries (Artisanal refineries) dotted across the region with another group of criminals involved in outright theft of crude oil and selling to the international market. Data were collected from Nigerian middle and downstream petroleum regulatory authority and Nigerian upstream petroleum regulatory commission and processed. The outcome showed that within the period under review, Nigeria lost to oil theft an unprecedented oil revenue of $2.1b, $1.9b, $7.2b and $22.4b for 2019, 2020, 2021 and 2022 respectively. This great economic loss could have been used to sustain the dwindling economy. This article also made recommendations to mitigate this revenue loss.
Satisfacción del paciente y cumplimiento de la norma técnica de tuberculosis en las enfermeras de la red asistencial Ica Essalud julio 2021
Authors:   , Yupanqui Alvites Yesica Lizet
Published: September 2023

Introducción: La Tuberculosis es un problema de salud pública que aqueja a un porcentaje considerable de la población peruana, en muchos casos existe una insatisfacción por parte de los pacientes que ocasiona que abandonen el tratamiento volviéndose resistentes a los fármacos, por otro lado existe un déficit en cuanto al correcto cumplimiento de la norma técnica de tuberculosis por parte de los profesionales de enfermería que puede influir en el cumplimiento del tratamiento o de la recuperación de los pacientes. Objetivo: Determinar la satisfacción del paciente y el nivel de cumplimiento de la norma técnica de tuberculosis en las enfermeras de la Red Asistencial Ica Essalud Julio 2021. Metodología: La investigación fue de tipo descriptivo, cuantitativo y trasversal contando con una muestra de 37 pacientes y 6 licenciadas en enfermería de los diferentes establecimientos de la Red Asistencial Ica Essalud, para la primera variable se utilizó un cuestionario y para la segunda variable una guía de observación. Resultados: Dentro de los pacientes se encontró que el 48.6%(18) tuvieron de 18 a 32 años, el 64.9%(24) eran de sexo masculino, el 59.5%(22) eran de la costa, el 59.5%(22) tenían tratamiento sensible y el 51.4%(19) tenían de 2 a 5 meses de tratamiento. De las enfermeras se obtuvo que el 50%(3) tuvieron de 36 a 46 años, el 66.6%(4) tenían un tiempo laboral de 1 a 5 años y el 66.6%(4) tenían contrato CAS. Con respecto a la satisfacción de los pacientes se obtuvo que fue medio con un 37.8%(14), el 32.4%(12) fue alto y el 29.8%(11) fue bajo y en relación al cumplimiento de la norma técnica de tuberculosis fue adecuado en un 66.6%(4) y fue inadecuada en un 33.4%(2).
Sobrecarga del cuidador en adultos mayores de la asociación Las Américas de Ate Vitarte-2022
Authors:   , Palomino Huamán Yaquelin
Published: September 2023

Introducción: La sobrecarga del cuidador está orientado al agotamiento, tanto emocional como físico que experimentan las personas que dedican gran parte de su vida al cuidado de una persona adulta mayor de 60 años y más aún cuando esa persona es dependiente de la otra y en su mayoría lleva a la necesidad que los cuidadores realicen funciones de atenciones básicas, donde asumen con mucha responsabilidad el cuidado de esa persona. El presente trabajo de investigación tuvo como objetivo: Determinar la sobrecarga de los cuidadores de adultos mayores de la Asociación las Américas - Ate Vitarte-Julio 2022.Metodologia: El estudio de investigación tendrá un enfoque cuantitativo, de tipo descriptivo, de corte transversal prospectivo y diseño no experimental. Resultados: Los resultados muestran en relación a los datos generales demográficos que el 43% de los cuidadores tienen más de 36 años, 64% son del sexo femenino, 51% son hijos, 46% tienen estudios secundarios, 50% son trabajadores informales, 64% cuentan con el seguro del SIS, 50% vienen cuidando a sus familiares de 7 a 12 meses. El 43% de los cuidadores presentan sobrecarga intensa, 40% sobrecarga leve, 17% no presenta sobrecarga en el cuidado de los adultos mayores. Según dimensión impacto del cuidador 50% sobrecarga intensa, 30% leve, 20%no presenta esta manifestación. Relaciones interpersonales 50% tienen sobrecarga leve, 30% intensa, 20%no presenta sobrecarga. Expectativas de autoeficiencia 43% de los cuidadores presentan una sobrecarga intensa, 30% leve, 17% no presentan sobrecarga.
DISFUNÇÃO TEMPOROMANDIBULAR
Authors: Silva Tatiana Bernardon
Published: September 2023

Este programa tem buscado esclarecer a população de Santa Maria e região sobre o que é DTM e bruxismo, como prevenir e tratar, considerando desde mudanças de hábitos e autocuidado até ajuda especializada, oferecida na UFSM por esse programa. Na esfera dessas ações, projetos de pesquisa estão sendo executados com intuito de avaliar a eficácia das terapias utilizadas, bem como das ações de educação para prevenção. Ações de educação para prevenção da DTM e bruxismo são realizadas abordando atividades de estudo, confecção de material didático (folders e banners para apresentação em oficinas de aprendizagem e palestras) para alunos de graduação. Estas ações, na categoria extramuros, vêm sendo realizadas em parceria com o Núcleo de Educação Permanente da Saúde (NEPS), da Secretaria de Saúde de Santa Maria, através do envio de material educativo para as Unidades de Saúde do município, treinamento dos dentistas que lá trabalham, e participação em eventos de saúde e em escolas da rede pública. São realizados atendimentos aos pacientes que procuram pelo serviço odontológico da Faculdade de Odontologia da UFSM. Os tratamentos realizados abordam a laserterapia, confecção de placas miorrelaxantes e orientações quanto a exercícios de fisioterapia adequados para cada caso. O tratamento de eleição individualizado baseia-se no diagnóstico prévio dado pelo preenchimento completo do RDC (Research Diagnostic Criterio). O serviço funciona em dois turnos semanais nas dependências do Curso de Odontologia. Os pacientes são reavaliados periodicamente a fim de verificar a remissão ou recidiva dos sintomas. O público alvo é composto de cidadãos santa-marienses e da região que utilizam o serviço de Odontologia do município e da UFSM. A equipe de trabalho é composta por professores, servidores técnico-administrativos em educação, alunos de graduação e pós-graduação. Espera-se que a difusão de conhecimento a respeito da DTM e bruxismo tornem possível a redução da prevalência e severidade de DTMs na população de Santa Maria e região. Além disso, como resultados dos tratamentos realizados, espera-se o alívio da dor, o restabelecimento das funções do sistema estomatognático e a melhora na qualidade de vida. Outrossim, os dados gerados pelas ações tem servido de base para produção de conhecimento científico. Palavras-chave: Transtornos da Articulação Temporomandibular. Síndrome da Disfunção da Articulação Temporomandibular. Promoção de Saúde. Terapêutica. Bruxismo.
Realidade Latino Americana: relato da viagem para a Argentina e Chile
Authors: Dessotti Fabiana Rita , Sales Richard Alves , Sales Richard Alves
Published: September 2023

Este texto apresenta um relato da viagem para a Argentina e Chile, realizada em julho de 2017, como parte do Programa de Extensão Realidade Latino Americana. Este Programa propõe o estudo, pesquisa e difusão de conhecimento sobre um ou mais países do continente em cada ano. No ano de 2017, constituiu-se um grupo de 30 integrantes que se envolveu em um processo de formação sobre os dois países, que culminou com uma viagem à Argentina e Chile. A viagem teve duração de 17 dias, envolvendo uma intensa agenda de encontros, eventos e debates, com a participação de diversas lideranças políticas, sindicais e de militâncias que lutaram contra a repressão e pela democracia. Os encontros contribuíram para o processo de formação do grupo, no sentido de que convergiram para mostrar os impactos das ditaduras nos Estados e na vida da população. A viagem de pesquisa contribuiu para a elevação da análise prática de diferentes governos e principalmente da luta social não só de uma nação, mas de um sentimento latino que propaga a independência e a soberania de países que já passaram e passam por grandes mazelas em suas histórias.
EXPERIÊNCIA DOS ESTUDANTES DE SEMIOLOGIA E SEMIOTÉCNICA EM AULAS PRÁTICAS COM O PACIENTE À BEIRA DO LEITO
Authors: Bessa Guerra Thais de Rezende , Machado Camila Aguiar , Reis Eliseu Magalhães , Barbosa Thiago , Da Cruz Tatiana Aparecida dos Anjos
Published: September 2023

Introdução: A formação de profissionais enfermeiros requer um ensino de qualidade, que lhe confira competência na realização de atividades assistenciais, gerenciais, de ensino e pesquisa. Nessa perspectiva, a disciplina de Semiologia e Semiotécnica visa formar enfermeiros capazes de realizar o processo de enfermagem. Objetivo: fazer um relato dos estudantes de semiologia e semiotécnica em aulas práticas com o paciente à beira do leito. Métodos: Este estudo consiste em um relato de experiência de alunos que já cumpriram a disciplina de Semiologia a Semiotécnica com o intuito de socializar as experiências. Resultados: Os alunos relataram individualmente, mas foi realizado um debate entre cinco alunos que vivenciaram a disciplina de Semiologia e Semiotécnica, e entre as falas foi evidenciado que o primeiro contato à beira do leito com o paciente é um momento desafiador, com sentimentos de insegurança ou medo. No entanto, entendemos que é nesse momento que começamos construir a relação ética da relação como enfermeiro-paciente. Ficou evidente para os alunos a importância que é na semiologia que começamos construir o raciocínio clínico para as disciplinas de Enfermagem, como Clínica Médica e Cirúrgica. Conclusão: Considerando as experiências vivenciadas durante a disciplina, o aluno relata que entende a dimensão que consiste o cuidar e que essa disciplina constrói um alicerce possibilitando o agir, o saber e o fazer em Enfermagem.
Tracing the Interests of Indonesian Khonghucu Adherents, Between Business and Academia
Authors: Hadian Emma Nurmawati , Wakhudin Wakhudin
Published: September 2023

This study aims to examine the interests of Indonesian Khonghucu religious adherents, especially related to business and academia. The people of Khonghucu are known to be very good at doing business, so they are generally financially successful. Since obtaining legality since the time of President K.H. Abdurrahman Wahid, Khonghucu has now continued to develop. Among Khonghucu businessmen, are there those who choose to become academics, pursue religion more, and develop Khonghucu? This study used a descriptive qualitative approach with phenomenological methods. The informan was a Khonghucu adherent who had succeeded in becoming a businessman and academic. Data collection techniques are carried out by interviews, observation, and documentation studies. Data validation is done by triangulation, both technique triangulation and source triangulation. The results showed that Khonghucu adherents in Indonesia are very interested in becoming entrepreneurs, although some of them prefer academic careers. Both options are influenced by family culture and values, labor market opportunities and demands, the influence of the educational environment and personal aspirations and abilities of individuals. Those in business contribute to Indonesia's economy, while those who choose academia preserve and pass on Confucian religious traditions to future generations. Both those who choose business and academia recognize that pursuing religion is a valuable devotion for Confucians and Indonesian society as a whole.
Analisis Pengaruh Kompetensi, Kompensasi Dan Budaya Organisasi Terhadap Komitmen Kontinuan (Study Empiris Pada PT. Eastwind Mandiri Semarang)
Authors: Dimas Utoro Jati  , Endah Winarti HS
Published: September 2023

The purpose of this study was to determine the effect of competence, compensation, and organizational culture on continuance commitment (empirical study at PT. EastWind Mandiri Semarang). The sample used as a sample is all employees of the Production Department, totaling 100 people, with a purposive sampling method. The analytical method used is data quality test, model quality test, hypothesis testing t-test and multiple linear regression analysis.

There is an influence between competence on continuance commitment with a significant number of 0.002 < α = 0.05 so it is significant. Meanwhile, t count = 3.226 > t table = 1.660. thus, H0 is rejected and Ha is accepted, meaning the hypothesis that there is a positive influence of competency on the continuance commitment of PT. EastWind Mandiri Semarang. There is an influence between work compensation on continuance commitment with a significant number of 0.000 < α = 0.05 so it is significant. While the t count = 7.315 > t table = 1.660. thus H0 is rejected and Ha is accepted means the hypothesis that there is a positive effect of compensation on the continuance commitment of PT. EastWind Mandiri Semarang. There is an influence between organizational culture on continuance commitment with a significant number of 0.000 < α = 0.05 so it is significant. Meanwhile, t count = 3.635 > t table = 1.660. thus H0 is rejected and Ha is accepted, meaning the hypothesis that there is a positive influence of organizational culture on the continuance commitment of PT. EastWind Mandiri Semarang
Pengaruh Struktur Modal, Profitabilitas, dan Ukuran Perusahaan Terhadap Nilai Perusahaan Pada Perusahaan Manufaktur di BEI Tahun 2016-2018
Authors: Mahendra Febrianto  , Subchan Subchan
Published: September 2023

The purpose of this research is to determine the effect of capital structure, profitability, company size on firm value in manufacturing companies on the IDX. The population in this study is the financial statement data of manufacturing companies that are listed and presented to the public in full published by the Indonesian Capital Market Directory (ICMD) on the Indonesia Stock Exchange for the period 2016-2018. While the sample used is 23 companies on the Indonesia Stock Exchange for the period 2016-2018.

Hypothesis 1 testing (H1) shows that the t value = -1.342 < t table = 1.667, with a significance number = 0.184 > α = 0.05, so that Hypothesis 1 (H1) is not significant (H1 is rejected). Thus, the hypothesis (H1) that capital structure (X1) affects firm value (Y) is not proven. This means that the greater of capital structure invested by investors in the company, the less it doesn’t affect the value of the company. Hypothesis 2 testing (H2) shows that the t value for (β2) = 8.769 > t table = 1.667, with a significance number = 0.000 < α = 0.05, so that Hypothesis 2 (H2) is significantly positive (H2 is accepted). Thus, the hypothesis (H2) that profitability (X2) has a positive effect on firm value (Y) is proven. This means that the greater of profitability generated by the company, the more the company value will also increase.
Pengaruh Kualitas Produk, Harga, Dan Promosi Terhadap Keputusan Pembelian Konsumen Pada CV Mulia Utama Semarang
Authors: Jonet Setiaji  , SB Handayani
Published: September 2023

Penelitian ini bertujuan untuk menganalisis Pengaruh kualitas produk, harga, dan promosi Terhadap keputusan pembelian Pada CV Mulia Utama Semarang. Metode pengumpulan data menggunakan kusioner. Teknik pengambilan sampel menggunakan teknik accidental sampling. Sampel sebanyak 97 responden merupakan konsumen Pada CV Mulia Utama Semarang. Berdasarkan hasill pengujian Kualitas produk berpengaruh positif dan signifikan terhadap keputusan pembelian, hasil ini terbukti karena nilai t hitung lebih besar dari t tabel yaitu 3,369 > 1,661  dengan nilai sig. sebesar 0,001 < 0,05 dengan nilai koefisien regresi 0,242 maka dapat artikan bahwa semakin tinggi kualitas produk maka, semakin tinggi tingkat keputusan pembelian konsumen. Harga berpengaruh positif dan signifikan terhadap keputusan pembelian, hasil ini terbukti karena nilai t hitung lebih besar dari t tabel yaitu 6,738 > 1,661  dengan nilai sig. sebesar 0,000 < 0,05 dengan nilai koefisien regresi 0,544 maka dapat artikan bahwa semakin sesuai harga yang diberikan maka, semakin tinggi tingkat keputusan pembelian konsumen. Promosi berpengaruh positif dan signifikan terhadap keputusan pembelian, hasil ini terbukti karena nilai t hitung lebih besar dari t tabel yaitu 2,442 > 1,661  dengan nilai sig. sebesar 0,017 < 0,05 dengan nilai koefisien regresi 0,193 maka dapat artikan bahwa semakin tinggi promosi yang diberikan maka, semakin tinggi tingkat keputusan pembelian konsumen.
Leader Member Exchange Terhadap Perilaku Inovatif Karyawan UMKM: Scoping Review
Authors: Lutfi Lutfi  , Sopiah Sopiah
Published: September 2023

Employee innovative behavior is very important in increasing the growth and development of MSMEs. The purpose of this study was to determine the influence of leader member exchange on the innovative behavior of MSME employees and the driving factors of leader member exchange on the innovative behavior of MSME employees. This study uses this scoping method to examine the most relevant and significant literature on leader member exchange (LMX) with related research methods. This research draws articles from several reputable national and international data bases or journals published from 2017 to 2023. The results of this study indicate that the relationship between leaders and team members in MSMEs has a significant impact on the innovative level of employees in MSMEs and the driving factors in LMX that influence the innovative behavior of MSME employees include leader support, mutual trust, open communication, recognition, and creative freedom
Gross morphometric studies on scapula, humerus, radius, and ulna of the Royal Bengal Tiger (Panthera tigris)
Authors: Uddin Mohi , Jahan Sadia , Lutfur Rahman Mohammad
Published: September 2023

The study was carried out to know the gross anatomy and morphometry of scapula, humerus, radius, and ulnar bones of forelimb of an adult Royal Bengal Tiger. The bones were collected from Bangladesh National Zoo, Dhaka, and processed scientifically in The Veterinary Anatomy Laboratory of Chattogram Veterinary and Animal Sciences University (CVASU). The scapula was somewhat a quadrangular shape having two surfaces, three borders, and three angles. Its lateral surface was unequally divided into supraspinous and infraspinous fossa by a well-developed spine which gradually diminished towards the proximal extremity. The acromion process was subdivided into thick triangular shaped suprahamate process and hamate process which was over hanged the glenoid cavity. The humerus of The Royal Bengal Tiger was a long bone with a spirally twisted shape. The body of the humerus was somewhat compressed laterally. The radius was a slightly twisted bone with an anteroposteriorly flattened shaft and two extremities. The proximal extremity had a concave facet and the distal extremity was expanded and was about twice the size of the proximal extremity. The ulna was longer than the radius and was flattened mediolaterally. The proximal extremity had an olecranon process, anconeus process, and facet for the humerus. The olecranon process possessed three tubercles. Some osteomorphometrical features in the bones of forelimb specified unique discrepancies for this species which were the key factors for interpretation in the field of radiology and forensic studies.
Estimation of methane emission from beef cattle of Bangladesh
Authors: Islam Aminul , Ali Biswas Ashraf
Published: September 2023

Agricultural sector emits large quantities of greenhouse gas, which is responsible for global warming. Some of the major greenhouse gases are methane, carbon dioxide, nitrous oxide etc. In our study, we have estimated the methane emission from beef cattle in Bangladesh. We followed the intergovernmental panel of climate change (IPCC) guidelines throughout our whole study. We used Tier 1 and Tier 2 methods for the calculation of methane emissions from beef cattle in Bangladesh. In the tier 1 method, we calculated the methane emission by using the emission factor provided by IPCC 2006 and 2019. According to IPCC 2019, we also calculated the methane emission using the tier 2 method which is based on dry matter intake. Finally, we have compared our calculated value. After calculation, in 2018, 2019, 2020 and 2021 total emission of methane from beef cattle based on Tier-1 (IPCC-2006) is 9990.00Gg, 10777.75Gg, 9996.75Gg and 10111.50Gg, respectively. Again based on IPCC-2019 emissions of methane are 17020.00Gg, 17169.50Gg, 17031.50Gg and 17227.00Gg, respectively. Using Tier 2 method (IPCC2019) methane emissions from beef cattle in 2018, 2019, 2020 and 2021 are 16087.60Gg, 16228.91Gg, 16098.47Gg and 16283.26Gg, respectively.
Culture and Identity in the Russo-Ukrainian War of 2022
Authors: Kirilov Svetlozar
Published: September 2023

The publication examines identity politics in Ukraine and in Russia based on their presentation in the Ukrainian news agencies Ukrinform and UNIAN and the Russian news agencies RIA-Novosti and TASS.
Crisis communications of the Bulgarian government in the period December 2021 – June 2022
Authors:   Faculty of Journalism and Mass Communication, Palev Lyubomir
Published: September 2023

Crisis communication occupies a huge part of the public relations of state institutions in Bulgaria. Bulgarian governments enjoy traditionally low levels of trust since the beginning of the democratic path of development of the country. The digital era has further contributed to the creation and development of crises, and to a particular extent, this fact concerns the political field. The effectiveness of crisis communications is of paramount importance for the governance of the country. The implementation of agreed and effective strategic government communications in times of crisis represents a real challenge in the modern conditions of the information and communication environment.
The mainstream media discourse in the first week of the Ukrainian war (24 February 2022 – 2 March 2022)
Authors:   Faculty of Journalism and Mass Communication, Stankova Svetlana
Published: September 2023

As Lippmann says in his famous book ”Public Opinion” one hundred years ago, the media construct the pictures inside our heads for everything which is ”out of reach, out of sight, out of mind.” The choice of words and phrases made by the media forms images, messages, and attitudes that not only influence public opinion but also construct a reality, a mediated reality. And for international events, this reality often remains the only one to all who cannot be direct witnesses, much less participants in them. The subject of this study is the coverage of the full-scale attack on Ukraine in 2022 by the mainstream western world media. The scope of the study includes the first seven days of the war – from February 24, 2022 to March 2, 2022. The object of the study is interpretive publications (communication units) related to the Russian invasion of Ukraine by two media, published on their websites during the first week of it. The media – The New York Times and Daily Mail, are selected according to the traffic to them, measured by Serpstat – Rank in global internet traffic, as of March 1, 2022. The empirical base includes all three hundred and eighty-six interpretive communication units published by the two media outlets in the specified period. The methods for data processing and interpretation of the empirical base are documentation, monitoring, discourse analysis, interpretive and rhetorical analysis. The study aims to answer these four main research questions: 1. What are the features and trends of media coverage? 2. How are the individuals and groups affected by the conflict represented in the coverage of the media? 3. What are the whole media messages and suggestions? 4. What are the communication dominants of the messages? 5. What is the expressed position of the communicators in the messages?
From Crisis PR to PR in a Situation of Uncertainty: Implication for the Communications Industry
Authors:   Faculty of Journalism and Mass Communication, Serafimova Mila
Published: September 2023

The communications industry faces the challenge of operating in an environment of global uncertainty. Crisis PR as theory and practice no longer provides answers to many of the questions facing communication professionals worldwide. We can evaluate this as a negative phenomenon, but also as a positive one, insofar as it will lead to new models of communication that are “more than crisis PR”. In the current situation, many of the crisis PR principles and practices seem not to take into account the complexity of parallel crisis phenomena, which mutually reinforce their effect, very often namely in the process of communication. The paper’s research focus is the dilemma facing the PR industry, which is related to its future – will it find new principles and models of working in an environment of uncertainty, going beyond the theory and practice of “just crisis PR” or the international organizations, governments and corporate organizations will reduce the levels, intensity and scope of their communication?
Pan-European TV EUROPE+ channel or the missing audio-visual face of the EU
Authors: Draganov Ivo
Published: September 2023

The development of the information society, the convergence between media, telecommunications and high technologies and the digitization of radio and television provides new opportunities for communication, mutual acquaintance and the creation of a new television territory that will unite people in Europe, present their cultural diversity, break down barriers of prejudices built up over centuries.
Beyond The Borders Global Collaboration in Open Distance Education through Virtual Exchanges
Authors: Msekelwa Patrick Zingisa
Published: September 2023

As a component of their educational programs and with the guidance of educators and/or facilitators, groups of students participate in virtual exchanges (VE), which are extended periods of online intercultural interaction and collaboration with peers from around the world. Experts in a scientific subject are linked up with others who want to participate for teaching and learning through virtual collaboration. In order to host material where both students and professors can share knowledge in a particular subject, many worldwide colleges and ODeL institutions use virtual platforms. Students can improve knowledge and abilities in a range of areas crucial to their personal, academic, and professional growth through virtual communication. Both synchronous and asynchronous digital tools were employed by students and teachers for virtual communication and collaboration. Students in South Africa can digitally interact with a professor in Canada and elsewhere. The difficulty is that some of the lecturers and students are not instructed on how to utilize the technology, let alone how to deal with network issues. Examining the literature was done with a focus on the virtual exchange in ODeL.  The study's methodology is qualitative research. The study has used connectivism theory to examine the data collected from students participating in virtual interaction. According to the Connectivism theory, learning happens when peers connect and collaborate to exchange ideas, thoughts, and viewpoints. The study utilized five online learning groups. The participants' thoughts, experiences, and perspectives on the value of digital engagement were solicited. The gathered data were analyzed using thematic analysis, a technique for uncovering themes in qualitative data. The findings demonstrated that digital interaction and virtual exchange enhance communication, problem-solving abilities, and language development
UPAYA PENERAPAN METODE PEMBELAJARAN TASK BASED LEARNING (RESITASI) DALAM MENINGKATKAN HASIL BELAJAR SEJARAH SISWA SMAN 4 TEBO TAHUN PELAJARAN 2022/2023
Authors: ERNAWATI ERNAWATI
Published: September 2023

Penelitian ini bertujuan untuk menerapkan método pembelajaran Task Based Learning dalam meningkatkan hasil belajar sejarah pada siswa SMA Negeri 4 Tebo semester ganjil tahun pelajaran 2022/2023. Hasil prestasi belajar siswa pada mata pelajaran Sejarah di SMA Negeri 4 Tebo semester ganjil tahun pelajaran 2022/2023 masih rendah. Oleh karena itu, harus ada inovasi dan peningkatan pembelajaran melalui penerapan metode penugasan. Berdasarkan hasil penelitian ini diperoleh bahwa melalui model pembelajaran dengan metode task based learning, kemampuan siswa dalam menyajikan materi di depan kelas dan belajar mandiri di rumah meningkat. Siswa menjadi lebih percaya diri pada pendapat menyatakan dan menerapkan ilmu sejarah dalam kehidupan publik. Variasi penerapan model ini dapat menghindari kebosanan siswa dalam mengikuti sejarah pembelajaran sehingga prestasi siswa meningkat. Setelah mempelajari metode task based learning prestasi belajar siswa meningkat 20,43% atau 70,43% atau 26 siswa. Ternyata tidak seperti yang diharapkan. Begitu juga siklus kedua. Dan hasilnya meningkat sebesar 21,57% dari siklus pertama 92% atau sekitar 34 siswa. Berdasarkan penelitian bahwa prestasi belajar siswa yang diperoleh IPS Sejarah kelas XI IPS 1 SMA Negeri 4 Tebo semester ganjil tahun pelajaran 2022/2023 nilai rata-rata meningkat pada siklus pertama adalah 68 untuk sekitar 80 pada siklus kedua.
PENERAPAN MODEL PEMBELAJARAN NUMBER HEAD TOGETHER DALAM MENINGKATKAN PRESTASI BELAJAR SISWA PADA PELAJARAN BAHASA INGGRIS DI SMAN 4 TEBO TAHUN PELAJARAN 2022/2023
Authors: Rumiatiningsih Rumiatiningsih
Published: September 2023

Penelitian ini bertujuan untuk menerapkan model pembelajaran Number head together (NHT) dalam meningkatkan prestasi belajar siswa pada mata pelajaran bahasa inggris di SMA Negeri 4 Tebo provinsi Jambi semester genap tahun pelajaran 2022/2023. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan kualitatif dengan jenis penelitian tindakan kelas. Sumber data dalam penelitian ini adalah siswa kelas XI IPA-1 SMA Negeri 4 tebo yang berjumlah 30 orang siswa dengan subjek wawancara 6 orang siswa yang terdiri dari 2 orang dengan kemampuan akademik tinggi, 2 sedang dan 2 orang dengan tingkat kemampuan akademik rendah. Data yang akan dikumpulkan bersumber dari tes, observasi, wawancara, dan catatan lapangan. Hasil penelitian diolah secara kualitatif. Hasil penelitian menunjukkan bahwa pembelajaran dengan model pembelajaran Number Head Together dapat meningkatkan hasil belajar siswa kelas XI IPA-1 SMA Negeri 4 tebo pada materi membaca teks bahasa Inggris, dimana pada pelaksanaan tes awal diperoleh persentase ketuntasan belajar sebanyak 13,89% meningkat menjadi 58,33% pada pelaksanaan siklus I, kemudian meningkat lagi menjadi 94,44% pada pelaksanaan siklus II. Hasil observasi yang dilakukan oleh 2 orang teman sejawat menunjukkan bahwa pelaksanaan kegiatan pembelajaran dapat meningkatkan aktivitas belajar mengajar, dimana pada pelaksanaan siklus I diperoleh persentase rata-rata hasil observasi adalah 74,61% dan pada siklus II diperoleh persentase rata-rata hasil observasi adalah 88,46%. Disamping itu dari hasil wawancara yang peneliti lakukan menunjukkan bahwa respon siswa kelas XI IPA-1 SMA Negeri 4 tebo terhadap pembelajaran dengan model pembelajaran Number Head Together sangat positif
Public-Private Partnership Participation in Road Infrastructure Construction Projects in Tanzania: Challenges and the Way Forward
Authors: Luwavi Eva , Luge Jafari , Muya Francis , Rugemalira Julius
Published: September 2023

Developing countries face inadequate resources for funding road infrastructures. This has amalgamated the public and private sectors into a mutually beneficial relationship through Public Private Partnerships (PPPs). Although extensive documentation exists on PPPs globally in various sectors, studies examining the challenges to PPPs in Road Infrastructure Construction projects in Tanzania are inadequate. This study aimed to address this shortfall. Purposive sampling was used to select 20 respondents for the study. A qualitative research design was used in the study, and data were collected through semi-structured interviews, focus group discussions, and document reviews. Thematic analysis was employed to analyze the data from interviews and focus group discussions. Over two-thirds of the interviewed respondents revealed that lack of preparedness, limited information on available opportunities for PPP projects, and inadequate capital market were among the main challenges facing PPPs on road infrastructure projects in Tanzania. The study calls for improving the institutional framework to enhance private sector participation in PPPs in road projects
Validated, Quantitative, Machine Learning-Generated Neurologic Assessment of Multiple Sclerosis Using a Mobile Application
Authors: Stoll Sharon , Litchman Charisse , Rubin Noah , Rubin Larry , Vartanian Timothy
Published: September 2023

BACKGROUND:

The BeCare MS Link mobile app collects data as users complete different in-app assessments. It was specifically developed to evaluate the symptomatology and neurologic function of patients with multiple sclerosis (MS) and to become a digital equivalent of the Expanded Disability Status Scale (EDSS) and other standard clinical metrics of MS progression.

METHODS:

Our research compared EDSS scores derived from the BeCare MS link app to EDSS scores derived from neurologist assessment for the same cohort of 35 patients diagnosed with MS. App-derived data were supplied to 4 different machine learning algorithms (MLAs) with an independent EDSS score prediction generated from each. These scores were compared with the clinically derived EDSS score to assess the similarity of the scores and to determine an accuracy estimate for each.

RESULTS:

Of the 4 MLAs employed, the most accurate MLA produced 19 EDSS score predictions that exactly matched the clinically derived scores, 21 score predictions within 0.5 EDSS points, and 32 score predictions within 1 EDSS point. The remaining MLAs also provided a relatively high level of accuracy in predicting EDSS scores when compared with clinically derived EDSS, with over 80% of scores predicted within 1 point and a mean squared error with a range of 1.05 to 1.37.

CONCLUSIONS:

The BeCare MS Link app can replicate the clinically derived EDSS assessment of a patient with MS. The app may also offer a more complete evaluation of disability in patients with MS.
Górnictwo w Arktyce, problemy środowiskowe i ekologiczne na przykładzie N Skandynawii (Kvalsund, Norwegia, Monchegorsk, Rosja)
Authors: Huber Miłosz , Alenga David , Kamiński Daniel , Maciołek Urszula , Iakovleva Olga
Published: September 2023

The Arctic region is a prospective area for ore mining and urbanization progress. The areas of Europe located beyond the Arctic Circle have unique features of the natural environment. Conducting mining works in this place is associated with certain difficulties resulting from weather conditions (numerous rains, long winters, polar night) and due to the high risk of permanent environmental pollution. An example of the specificity of arctic mining is Kvalsund in northern Norway, where there is a copper mine that is currently under development. Another example is the Monchegorsk region in Russia, which is currently no longer mining. Both of these places are associated with sulphide deposits of non-ferrous metals and the resulting consequences. The purpose of this text was to show the differences and similarities of these mining plants, and on this basis to demonstrate the complexity of the issues of exploitation and reclamation of mining areas in the Arctic.
Hyperspectral absorption of CO in the near infrared band at room temperature
Authors: Wang Ya-Min , Wu Hao-Long , Tao Meng-Meng , Li Guo-Hua , Wang Sheng , Ye Jing-Feng ,   State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology, Xi’an 710024, China,   Wang Zhijiang Laser Innovation Center, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Published: September 2023

As an important medial product in the combustion process of carbon-based compounds, CO serves as one of the preferable candidates for combustion diagnosis in absorption spectrum. So far, most of researches have focused on the conventional one-line or dual-line technique, which requires a number of beam projections for two-dimension (2D) tomography of combustion field. Hyperspectral absorption spectroscopy enables continuous acquisition of absorption information over a whole absorption band, rather than one or two discrete absorption lines, demonstrating remarkable advantage over the traditional one-line and dual-line techniques. Hyperspectral absorption spectroscopy can not only reduce the system complexity with limited projections for high spatial resolution 2D tomography, but also improve the system applicability by refining the measurement robustness. However, up to now, little attention has been paid to hyperspectral absorption of CO. Here, by using a wideband tunable laser source around 1.5 μm, experiments are conducted at room temperature to investigate the hyperspectral absorption characteristics of CO in the near infrared band. Absorptions under different pressure conditions are compared with each other. And, the measured results are consistent with the HITRAN2016 database. With the measured hyperspectral absorption information in the 1565–1570 nm range, temperature and mole fraction of CO are derived by the first derivative method. Despite the distortion of the recorded absorption peaks, accurate results are obtained with measurement errors within 5% for both temperature and mole fraction, thereby validating the reliability of hyperspectral absorption technique for CO. And, this research is instructive for future 2D tomography of combustion fields based on hyperspectral absorption of CO.
Iodine electron cyclotron resonance plasma source for electric propulsion
Authors: Li Xin , Zeng Ming , Liu Hui , Ning Zhong-Xi , Yu Da-Ren ,   Key Laboratory of Aerospace Plasma Propulsion, Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin 150001, China
Published: September 2023

With the rapid development of commercial space in recent years, the low-power and low-cost propulsion systems are needed more and more urgently. Compared with conventional chemical propulsion, electric propulsion has a higher specific impulse. Compared with the conventional xenon propellant, iodine propellant that does not require high pressure storage, is cheap and close to the relative atomic mass and ionization energy of xenon. Electron cyclotron resonance source has the advantages of no internal electrode, low pressure ionization, high plasma density and compact structure, which is suitable for low power electric propulsion. Therefore, the study of low power iodine propellant electron cyclotron resonance plasma source is of great significance. In this study, a set of corrosion-resistant feed system with balanced and stable output of iodine vapor is designed. Then the iodine-corrosion-resistant electron cyclotron resonance thruster is designed completely. A corrosion-resistant coaxial cavity structure is used to feed the microwave to the thruster, and the channel magnetic field is changed into a cusped field to generate more electron cyclotron resonance (ECR) layers. Finally, the combined ignition experiment is successfully conducted, showing the first plasma source using electron cyclotron resonance to ionize iodine propellant that can be used for electric propulsion in the world. The analyses of experiments, static magnetic field, microwave electric field distribution show that the unstable plasma plume scintillation at low power and low flow is caused by the conversion between ordinary wave electron plasmon resonance heating mode and extraordinary wave electron cyclotron resonance heating mode. The decrease of ionization rate at a high flow rate is caused by electron loss, wall loss and electronegativity of iodine propellant. Based on this principle, an improvement scheme is proposed. The plasma source has no obvious damage after discharge, which indicates that it has the potential of long life. This work preliminarily proves that the low power electron cyclotron resonance electric propulsion scheme of low power iodine propellant is feasible.
Encoding terahertz metasurface reflectors based on geometrical phase modulation
Authors: Jiang Zai-Chao , Gong Zheng , Zhong Yun-Xiang , Cui Bin , Zou Bin , Yang Yu-Ping ,   School of Science, Minzu University of China, Beijing 100081, China,   Engineering Research Center of Photonic Design Soft Wave, Ministry of Education, Beijing 100081, China
Published: September 2023

Multi-dimension and multi-freedom modulation of polarization state based on the geometrical-phase periodic encoding metasurface has important application prospects. Here, terahertz metasurface composed of specially shaped metal pattern coded particles is proposed. When the coded particles are normally incident, the amplitude reflectivity of the terahertz wave is above 80% in a range of 0.50–1.80 THz. Combined with the Pancharatnam-Berry (P-B) phase theory, 8 kinds of coded particles are designed by rotating the angle of the designed unit. Three kinds of 1-bit, 2-bit, and 3-bit periodic encoding metasurfaces with different encoding sequences are used to manipulate the reflected terahertz waves splitting into multiple-beam with different deflection angles. In addition, both reflection characteristics (including amplitude, phase, and phase coverage) of all coded particles and the angle deflection of the designed 2-bit periodic metasurface are measured by normal incidence THz time-domain spectrometer and variable incident angle THz time-domain spectrometer, respectively. Based on generalized Snell law and experimental results, the reason for the discrepancy between theoretical value and experimental value is further analyzed, which can provide a reference for the reverse design of the coded metasurfaces to meet various practical needs.
Optimization of h-BN/Ag/Ag2O heterostructure by high temperature annealing and its surface-enhanced Raman scattering performance
Authors: Zheng Lin-Qi , Shi Shu-Hua , Li Jin-Ze , Wang Zi-Yu , Li Shuang ,   School of Science, Shandong Jianzhu University, Jinan 250101, China
Published: September 2023

As a commonly used food additive, synthetic dyes are widely used in foods such as beverages, sweets and dairy products, and in the food processing process. Excessive use of synthetic dyes may induce cell mutations, children’s hyperactivity, genetic diseases and even cancer, which greatly threatens human health. As a fast, cheap, stable, ultra-sensitive and accurate detection method, SERS detection can reflect rich information about molecular fingerprint through the vibration of the analyte, and accurately determine the trace quantity of synthetic dyes in the actual environment. The metal/semiconductor heterostructure formed by the combination of plasmon metal and semiconductor is advantageous for the enhancement of photoinduced charge transfer (PICT) efficiency, and has obvious advantages in the study of surface-enhanced Raman scattering. In this work, the prepared hybrid substrate is annealed to further improve the surface-enhanced Raman scattering activity. Initially, high-density and monodisperse silver/silver oxide (Ag/Ag2O) nanoparticles are loaded onto two-dimensional hexagonal boron nitride (h-BN) nanosheets. On this basis, by annealing the system at high temperature, an efficient charge transfer channel is constructed, which greatly improves the PICT efficiency and chemical enhancement (CM). It is confirmed experimentally that the SERS signal intensity of h-BN/Ag/Ag2O material annealed at 320 ℃ with crystal violet (CV) as probe molecule is significantly increased 18 times compared with that of unannealed material, enhancement factor (EF) reaches 16.3145 ×107. Finally, based on the excellent SERS property of h-BN/Ag/Ag2O annealed at 320 ℃, the SERS detection of food additive Patent Blue V (PBV) is conducted in this work. The results show that the lowest detection concentration can reach 10–12 M, and the trace detection of synthetic dye PBV is realized. It has excellent spatial uniformity and anti-interference capability, which is of great significance in implementing the actual scene detection of PBV. The h-BN/Ag/Ag2O annealed at 320 ℃, the composite which is constructed in this paper, has both physical enhancement and chemical enhancement, and possess significant advantages in ultra-low sensitive SERS detection of food additives.
Thalamic regulation of ocular dominance plasticity in adult visual cortex
Authors: Qin Yi , Ahmadlou Mehran , Suhai Samuel , Neering Paul , de Kraker Leander , Heimel J. Alexander , Levelt Christiaan N.
Published: September 2023

Experience-dependent plasticity in the adult visual system is generally thought of as a cortical process. However, several recent studies have shown that perceptual learning or monocular deprivation can also induce plasticity in the adult dorsolateral geniculate nucleus (dLGN) of the thalamus. How plasticity in the thalamus and cortex interact in the adult visual system is ill understood. To assess the influence of thalamic plasticity on plasticity in primary visual cortex (V1), we made use of our previous finding that during the critical period, ocular dominance (OD) plasticity occurs in dLGN and requires thalamic synaptic inhibition. Using multielectrode recordings we find that this is also true in adult mice, and that in the absence of thalamic inhibition and plasticity, OD plasticity in adult V1 is absent. To study the influence of V1 on thalamic plasticity we silenced V1 and show that during the critical period, but not in adulthood, the OD shift in dLGN is partially caused by feedback from V1. We conclude that during adulthood, the thalamus plays an unexpectedly dominant role in experience-dependent plasticity in V1. Our findings highlight the importance of considering the thalamus as a potential source of plasticity in learning events that are typically thought of as cortical processes.