bluuebunny/crossref_metadata_2025 huggingface dataset:
Preliminary Assessment of Ecological Status of the Siversky Donets River Basin (Ukraine) Based on Phytoplankton Parameters and Its Verification by Other Biological Data
Authors: Bilous Olena , Afanasyev Sergey , Lietytska Olena , Manturova Oksana , Polishchuk Oleksandr , Nezbrytska Inna , Pohorielova Maryna , Barinova Sophia
Published: December 2021

The river basin of Siversky Donets is of great scientific interest since this river runs through a territory with heavy industry (in particular, coal mining, chemical processing and metal industries). Within the basin, rivers of different sizes were explored (small, medium, large and extra-large) that flow through siliceous and calcareous rocks on the same elevation (lowland—below 200 m a.s.l.). Phytoplankton, as one of the Biological Quality Element, was used to perform the assessment of ecological status of the water bodies within the Siversky Donets river basin in 2019. The state monitoring program based on the updated approaches has been implemented in the river basin for the first time. The composition of phytoplankton species in the basin comprised 167 species (168 intraspecies taxa), mainly Bacillariophyta (63%) and Chlorophyta (22%) with the presence of other species (Cyanobacteria, Charophyta, Chrysophyta, Dinophyta and Euglenophyta). High species diversity and divisions amount are a distinctive property of the smaller rivers, while the bigger rivers show lower number of divisions. The “bloom” events, which are important ecological factors, were not detected in the Siversky Donets river basin. Algal species composition in plankton samples of the basin was identified and series of ecological parameters, such as habitat preferences, temperature, pH, salinity, oxygenation and organic water pollution according to Watanabe and Sládeček’s index of saprobity (S) trophic state and nitrogen uptake metabolism were analyzed. The ecological conclusions were also verified by a canonical correspondence analysis (CCA). The significance of the Canonical Correspondence Analysis (CCA) results was estimated of by a Monte-Carlo permutation test. The high concentrations of inorganic phosphorus compounds (permanganate index (CODMn)) and nitrite ions favored the diversity of Chlorophyta and Cyanobacteria diversity correlated with the levels of bicarbonate and CODMn. High diversity of diatoms was facilitated by the total amount of dissolved solids and chemical oxygen demand (COD). It was found that low water quality could be associated with conditions leading to predominant growth of the mentioned groups of algae. According to the analysis, the highest water quality was characterized by balanced phytoplankton composition and optimal values of the environmental variables. The sites with reference conditions are proposed for future monitoring.
Production of Fresh Water by a Solar Still: An Experimental Case Study in Australia
Authors: Nomor Elizabeth , Islam Rafiqul , Alim Mohammad A. , Rahman Ataur
Published: December 2021

There is a scarcity of fresh water in many rural communities where solar stills can be used to produce drinking water at a minimal cost. These stills use solar energy, which is a sustainable form of energy, and hence this can contribute towards achievement of United Nations (UN) Sustainable Development Goals (SDG). This study aims to develop empirical models of a solar stills based on experimental data obtained at Werrington South, New South Wales, Australia. Two solar stills were used in the experiment, a conventional design (Con-Still) and a con-still modified with adding extra thermal mass inside the still (mod-still). Regression analysis was adopted to develop prediction equations using Pi (productivity in L/m2/day) as the response variable and ambient temperature (Ta), sky temperature (Ts19), global radiation (Gh), and wind velocity (W) as the predictor variables. The mean and median productivity values of the mod-still were found to be 17%, and 22% higher than that those for the con-still. The proposed mod-still can be further improved and used in rural areas to produce fresh water from sea water and other forms of contaminated water.
Gas-Liquid Two-Phase Flow in a Pipe or Channel
Authors: Pakhomov Maksim A. , Lobanov Pavel D.
Published: December 2021

This Special Issue contributes to highlight and discusses topics related to various aspects of the two-phase gas-liquid flows [...]
The Applications of Soft Computing Methods for Seepage Modeling: A Review
Authors: Nourani Vahid , Behfar Nazanin , Dabrowska Dominika , Zhang Yongqiang
Published: December 2021

In recent times, significant research has been carried out into developing and applying soft computing techniques for modeling hydro-climatic processes such as seepage modeling. It is necessary to properly model seepage, which creates groundwater sources, to ensure adequate management of scarce water resources. On the other hand, excessive seepage can threaten the stability of earthfill dams and infrastructures. Furthermore, it could result in severe soil erosion and consequently cause environmental damage. Considering the complex and nonlinear nature of the seepage process, employing soft computing techniques, especially applying pre-post processing techniques as hybrid methods, such as wavelet analysis, could be appropriate to enhance modeling efficiency. This review paper summarizes standard soft computing techniques and reviews their seepage modeling and simulation applications in the last two decades. Accordingly, 48 research papers from 2002 to 2021 were reviewed. According to the reviewed papers, it could be understood that regardless of some limitations, soft computing techniques could simulate the seepage successfully either through groundwater or earthfill dam and hydraulic structures. Moreover, some suggestions for future research are presented. This review was conducted employing preferred reporting items for systematic reviews and meta-analyses (PRISMA) method.
US farm typology from agricultural census: labor resource analysis
Authors: Ukolova A. V. , Dashieva B. Sh.
Published: December 2021

This article analyzes the labor resources by farm type in the United States based on the 2017 Agricultural Census. The subject of the research is the system of statistical indicators of the availability and composition of labor resources, the object is the population of farms in the United States. Based on the study of the US experience, it is proposed to expand the program of the agricultural census of the Russian Federation under the section “Labor resources” and the system of groupings of observation units, including typological ones, when publishing the results. The analysis of labor resources by types of farms in the United States showed that there are significant differences in the availability and composition of labor resources.
Parceria entre setor público e privado para Gestão de Parques Urbanos na cidade de São Paulo (SP)
Authors: Nascimento Ana Paula Branco , Viana Neiva Menezes , Conti Diego de Melo
Published: December 2021

Dentre os problemas ambientais causados pelas atividades humanas está a redução de espaços verdes, indicando que quanto maior a urbanização maior a redução destes espaços. A prefeitura de São Paulo alcançou sua meta de atingir o número de 100 parques municipais até o ano de 2012. A gestão e manutenção destes espaços tornou-se um desafio para a administração pública, em que a solução está voltada para uma parceria entre os setores público e privado. Analisou-se a percepção de especialistas sobre o papel da Parceria Público Privada (PPP) para a gestão de Parques Urbanos. A coleta de dados foi por meio de entrevistas estruturadas utilizando-se o método snowball. As entrevistas foram gravadas, transcritas e analisadas no Software ATLAS TI. A análise de conteúdo consistiu em uma pré-análise das falas dos especialistas, e em um segundo momento os trechos das falas foram categorizados. Na percepção dos especialistas, os benefícios das PPPs estão relacionados a uma melhoria na qualidade dos serviços prestados e redução dos custos públicos, uma vez que os riscos serão compartilhados. As PPPs têm benefícios para a gestão de parques em São Paulo no modelo de concessão comum, sendo um importante instrumento para que cidades possam qualificar a sua infraestrutura ambiental. Conclui-se que a parceria com o setor privado traz melhoria na qualidade dos serviços prestados em áreas de parques urbanos, pois o poder público não dispõe de recursos. E como principal desafio está o diálogo entre o governo e a sociedade, envolvendo o conselho gestor dos parques envolvidos.
A Mata Atlântica me ensinou: estudo sobre aprendizado de estudantes com base nas vivências de um projeto de Educação Ambiental em Itu (SP)
Authors: Marchi Kelly De , Melo Ismail Barra Nova de , Lana Rita de Cássia , Marques Silvio César Moral
Published: December 2021

A Educação Ambiental, formal ou informal, é uma ação importante para ensinar e refletir sobre a importância da natureza, sua diversidade e, principalmente, para provocar mudança de atitude por meio da tomada de consciência e, desta forma, contribuir para a proteção e conservação ambiental. Este estudo buscou analisar o aprendizado de estudantes da Educação Básica que participaram do projeto de Educação Ambiental “Aprendendo com a Mata Atlântica” em 2019 a partir de atividades de vivências na natureza no Centro de Experimentos Florestais SOS Mata Atlântica, no município de Itu (SP). Trata-se de uma pesquisa qualitativa em que a coleta dos dados foi feita com questionário aberto com a participação de 32 escolas e 1256 respostas. A partir da análise dos relatos dos estudantes foi realizado o tratamento de dados e categorização para facilitar o entendimento e utilizado o recurso gráfico nuvem de palavras (NP) na identificação da frequência de palavras em textos volumosos. A maior parte dos estudantes que visitou o Centro de Experimentos é de Itu e região (90,4%) e o restante da cidade de São Paulo e entorno (9,6%). As respostas dadas pelos estudantes do Ensino Fundamental e Médio com maiores percentuais, respectivamente, foram: biodiversidade com 33,1% e 31,8%; restauração florestal com 25,6% e 14,9%; remanescentes da Mata Atlântica com 10% e 14,8% e relação água e floresta com 12,2% e 11,2%. Estas respostas indicam que a Educação Ambiental realizada em contato com a natureza promove uma tomada de consciência do indivíduo para uma formação da cidadania com vistas à conservação da natureza e prática do Ecoturismo.
Programa de Educação Ambiental e agricultura familiar: análise da proposta pedagógica
Authors: Oliveira Alane Pereira de , Ferreira Liliane Caraciolo
Published: December 2021

O presente artigo objetiva analisar como o Programa de Educação Ambiental e Agricultura Familiar (PEAAF) materializa em sua proposta pedagógica os preceitos da Educação Ambiental Crítica. Trata-se de uma pesquisa documental, em uma abordagem qualitativa, utilizando o método de análise de conteúdo. Com base nos dados obtidos, evidencia-se que o PEAAF propõe o desenvolvimento de ações educacionais ambientais a partir da sugestão de temas orientadores e pela adoção, de maneira integrada, do enfoque territorial, da pesquisa-ação participante, da investigação de temas geradores e da educomunicação como estratégias pedagógicas. Nesse sentido, orienta suas ações para o desvelamento e a problematização do meio ambiente em sua complexidade, em práticas que permitam a reflexão e a participação ativa na resolução de problemas socioambientais, buscando instrumentalizar os agentes sociais para a ação política e social transformadora, o que consiste em um posicionamento compatível com a Educação Ambiental Crítica.
Percepções sobre a formação de professores de ciências voltadas a Educação Ambiental: com a palavra os egressos do curso de Ciências Naturais
Authors: Freitas Manolo Cleiton Costa , Pereira Filho Silvio Carlos Ferreira , Freitas Ana Carolina Gomes de Albuquerque de
Published: December 2021

Este trabalho é resultado de uma pesquisa desenvolvida com egressos do curso de Licenciatura em Ciências Naturais de uma universidade pública e teve como objetivo principal investigar de que forma as disciplinas ofertadas durante a formação acadêmica contribuíram para a formação do professor como educador socioambiental e, como objetivo secundário, melhorar a formação de professores, contribuir com a gestão de ensino e facilitar a inserção da Educação Ambiental (EA) nas futuras práticas docente de egressos do curso de uma Instituição de Ensino Superior. Para tal, foram consideradas as percepções dos egressos quanto ao conteúdo, práticas dos docentes e aprendizagem dos sujeitos da pesquisa. Para a realização desta pesquisa, foram adotados os procedimentos metodológicos de uma abordagem quali-quantitativa, utilizando formulário eletrônico constituído por perguntas abertas e fechadas. A maioria das perguntas fechadas foram formuladas seguindo a escala Likert de concordância e os resultados apresentados em gráficos. Para a interpretação das respostas abertas foi utilizado a análise de conteúdo segundo Flick (2013). O estudo revela as percepções dos egressos quanto a sua satisfação com a formação ofertada, investiga os pontos fortes e fracos da formação voltada à EA, além de possibilitar oportunidades de reflexão crítica para melhorar a formação de professores de ciências com um olhar mais sensível à EA.
La adaptación en un entorno intermedial: experiencia de una investigación-creación
Authors: Rojas Paula
Published: December 2021

Este artículo tiene como objetivo analizar la investigación-creación que cuestiona la problemática de la adaptación de un texto narrativo al teatro al integrar las posibilidades dramatúrgicas que la presencia de las tecnologías digitales ofrece a la escena. Este proceso nos aleja de una adaptación tradicional, adoptando en su lugar una perspectiva intermedial y con ella la idea de la adaptación como conexión. Esta visión acentúa la dinámica, la relación y la reciprocidad entre las obras que dialogan entre sí, en oposición a una visión unidireccional (obra de partida-obra de llegada).  Como parte del trabajo metodológico, se llevan a cabo una serie de laboratorios de investigación escénica en los cuales se crean dispositivos escénicos videográficos, sonoros y espaciales, que son integrados y dan forma al guión dramatúrgico El mundo no se detiene concebido como una escritura intermedial.
Espacio teatral en la encrucijada tecnovivial: implicancias territoriales
Authors: Arce De Piero Mario Leandro
Published: December 2021

El empleo de artefactos tecnológicos y de la red de internet han sido los recursos más explotados por los artistas de todo el país y del mundo para sostener su actividad en estos últimos tiempos. Ahora bien, ¿cómo impacta esta emergencia en la perspectiva de los estudios teatrales? El teatro tecnovivial no solo nos plantea un programa poético específico, explícito y decidido que buscó dar respuesta a esta coyuntura y resolver el particular desafío del empleo de aparatos para la producción de acontecimientos teatrales, sino que también nos lleva a reconsiderar la relación entre cuerpo, espacio y tiempo en la construcción de territorios posibles inéditos. El teatro tecnovivial nos hace repensar el rol que cumple el espacio en la producción del acontecimiento teatral. A partir del análisis de tres casos, revisamos el funcionamiento del espacio en el teatro tecnovivial, la problemática que involucra a quienes buscan legitimar esta práctica y, finalmente, las implicancias territoriales sobre la configuración del campo teatral.
Therapeutic effects of silver nanoparticle and L-carnitine on aerobic vaginitis in mice: an experimental study
Authors: Fatahi Dehpahni Mozhgan , Chehri Khosrow , Azadbakht Mehri
Published: December 2021

Introduction: Aerobic vaginitis (AV) is a type of vaginal infection that occurs at the reproductive age of women. In this study, we aimed to study the possible anti-AV therapeutic effects of silver nanoparticles (AgNPs) and L-carnitine (LC) in the mouse model. Methods: AV model was established by intra-vaginal inoculation of 108 CFU/mL Staphylococcus aureus and Escherichia coli (1:1) in adult NMRI mice. Susceptibilities of the bacteria were examined against AgNPs by inhibitory concentration (IC-50 and IC-90) and minimum biofilm inhibitory concentration (MBIC- 90) methods. The regimens therapy was intra-vaginal inoculation of AgNPs at MBIC- 90 and a daily injection of 250 mg/kg LC for two weeks. Mice were classified into healthy (control) and AV groups and then treated by LC, AgNPs, and AgNPs + LC. The vaginal smears were taken daily and tissue sections were prepared using the hematoxylin and eosin (H & E) method. Results: Minimum inhibitory concentrations (MICs) of AgNPs for E. coli, S. aureus, and their mixture were 250, 125, and 500 ppm, and their MBIC-90% were 500, 250, and 1000 ppm, respectively. The estrus cycle of mice treated with co-administration of AgNPs and LC was similar to the control group (P < 0.05). The results of histology also showed that infected mice were treated with AgNPs and LC, simultaneously. Conclusion: Single bacteria are more sensitive than their mixed model to these NPs. Co-administration of AgNPs as an antibacterial agent and LC as an antioxidant agent can treat AV in the infected mice.
Chitosan nanoparticle-mediated effect of antimiRNA-324-5p on decreasing the ovarian cancer cell proliferation by regulation of GLI1 expression
Authors: Ysrafil Ysrafil , Astuti Indwiani
Published: December 2021

Introduction: MicroRNAs (miRNAs) are short-sequence RNAs that regulate gene expression by targeting messenger RNAs (mRNAs). Recent studies reveal that miRNA-324-5p plays an important role in worsening the ovarian cancer prognosis when the expression is very high. This study aimed to develop a miRNA targeted therapy by targeting the miRNA-324-5p function as a miRNA-324-5p inhibitor. Methods: Chitosan nanoparticles were used for antimiRNA-324-5p delivery into SKOV3 cell lines formulated by ionic gelation method. Antiproliferative effect of CS-NPs-antimiRNA was assessed by the MTT Assay. A mechanism study assessed the anticancer effect of the formula. In silico analysis used miRTar.Human and StarmiRDB combined with Genecard to predict the target genes of antimiR. Hawkdock web server was used to analyze protein-protein interactions that were further validated by quantitative polymerase chain reaction (qPCR). Results: The results of qPCR analysis showed endogenous miRNA-324-5p decreased after 24-hour transfection of antagonist miRNA. Furthermore, the MTT assay results showed that antimiRNA was able to inhibit SKOV3 cell proliferation (80 nM 68.13%, P<0.05). In silico analysis found miRNA-324-5p can regulate MEN1 and indirectly repress Gli1 mRNA. Validation results confirmed antimiR can decrease GLI1 mRNA expression. Conclusion: Our results showed antimiRNA-324-5p can act as a microRNA-based therapy to inhibit ovarian cancer proliferation by the reduction of GLI1 expression.
Expression of functional eGFP-fused antigen-binding fragment of ranibizumab in Pichia pastoris
Authors: Movaghar Asareh Shirin , Savei Tahereh , Arjmand Sareh , Ranaei Siadat Seyed Omid , Fatemi Fataneh , Pourmadadi Mehrab , Shabani Shayeh Javad
Published: December 2021

Introduction: Ranibizumab is a mouse monoclonal antibody fragment antigen-binding (Fab) against human vascular endothelial growth factor-A (VEGF-A), inhibiting angiogenesis. This antibody is commercially produced in Escherichia coli host and used to treat wet age-related macular degeneration (AMD).Methods: In this study, the heavy and light chains of ranibizumab were expressed in Pichia pastoris. The expressed chains were incubated overnight at 4°C for interaction. The formation of an active structure was evaluated based on the interaction with substrate VEGF-A using an indirect ELISA, and an electrochemical setup. Furthermore, reconstruction of split enhanced green fluorescent protein (eGFP) reporter, chimerized at the C-terminus of the heavy and light chains, was used to characterize chains’ interaction. Results: P. pastoris efficiently expressed designed constructs and secreted them into the culture medium. The anti-Fab antibody detected the constructed Fab structure in western blot analysis. Reconstruction of the split reporter confirmed the interaction between heavy and light chains. The designed ELISA and electrochemical setup results verified the binding activity of the recombinant Fab structure against VEGF-A. Conclusion: In this work, we indicated that the heavy and light chains of ranibizumab Fab fragments (with or without linkage to split parts of eGFP protein) were produced in P. pastoris. The fluorescence of reconstructed eGFP was detected after incubating the equal ratio of chimeric-heavy and light chains. Immunoassay and electrochemical tests verified the bioactivity of constructed Fab. The data suggested that P. pastoris could be considered a potential efficient eukaryotic host for ranibizumab production.
Designing robust chitosan-based hydrogels for stem cell nesting under oxidative stress
Authors: Olfat Noubari Zahra , Golchin Asal , Fathi Marziyeh , Nakhlband Ailar
Published: December 2021

Introduction: Hydrogels are unique candidates for a wide range of biomedical applications including drug delivery and tissue engineering. The present investigation was designed to consider the impact of chitosan-based hydrogels as a scaffold on the proliferation of human bone marrow mesenchymal stem cells (hBM-MSCs) besides neutralization of oxidative stress in hBM-MSCs. Methods: Chitosan (CS) and CS-gelatin hydrogels were fabricated through ionic crosslinking using β-glycerophosphate. The hBM-MSCs were cultured on the prepared matrices and their proliferation was evaluated using DAPI staining and MTT assay. Furthermore, the effect of hydrogels on oxidative stress was assessed by measuring the expression of NQO1, Nrf2, and HO-1 genes using real-time PCR. Results: The developed hydrogels indicated a porous structure with high water content. The toxicity studies showed that the prepared hydrogels have a high biocompatibility/cytocompatibility. The expression of intracellular antioxidant genes was studied to ensure that stress is not imposed by the scaffold on the nested cells. The results showed that Nrf2 as a super transcription factor of antioxidant genes and its downstream antioxidant gene, NQO1 were downregulated. Unexpectedly, the upregulation of HO-1 was detected in the current study. Conclusion: The prepared CS-based hydrogels with desired properties including porous structure, high swelling ability, and cytocompatibility did not show oxidative stress for the nesting of stem cells. Therefore, they could be attractive scaffolds to support stem cells for successful tissue engineering purposes.
Satisfacción de los servicios académicos en la educación superior
Authors: Núñez Michuy Carlos Manuel , Noboa Torres María Lorena , Agualongo Chela Luis Marcial , Veloz Segura Verónica Teresa
Published: December 2021

El objetivo de la presente investigación es conocer el grado de satisfacción de los estudiantes universitarios con el contenido del estudio y con las condiciones académicas. La metodología de la presente investigación fue de enfoque cualitativo con un tipo de investigación descriptivo de carácter no experimental. La población de este estudio fueron estudiantes activos de la universidad y bajo un muestreo no probabilístico se seleccionó como muestra de estudio a 60 los estudiantes del sexto semestre de la carrera de educación básica de la Universidad Estatal de Bolívar. Se aplicó el cuestionario para medir la importancia y satisfacción de los servicios universitarios desde la perspectiva estudiantil de Zambrano et al. (2019), el instrumento mide la satisfacción y la importancia de los servicios universitarios. Los resultados principales evidencian que el grado de satisfacción de los estudiantes en el 100% fue alto.  Se concluye que los estudiantes están satisfechos con la educación superior, además, el ambiente educativo, experiencia con los docentes, los recursos y las instalaciones del son aspectos más significativos para los estudiantes en la educación superior.
Ciencia y tecnología en Ecuador. Una revisión al estado del arte
Authors: Lara Satán Napoleón , Rojo Gutiérrez Marco Antonio
Published: December 2021

Las disrupciones provocadas por la globalización, realidades y complejidades de los diferentes mercados que forman parte del ecosistema económico mundial, han despertado un especial interés común; sobre todo en países en vías de desarrollo, para fortalecer alianzas estratégicas enfocadas hacia factores endógenos y exógenos, relacionados con la innovación (I+D), el desarrollo de estudios científicos y tecnológicos; que coadyuvan de manera directa a solventar dificultades (desempleo, calidad de vida, exportaciones, importaciones, etcétera); que se han acrecentado, en gran parte, por la desatención de algunos Estados de invertir de manera estratégica en programas que incentiven la exploración y desarrollo científico. El objetivo de la investigación, es develar el comportamiento y desarrollo de la ciencia y tecnología entre los años 2012-2014, como instrumento de transformación socioeconómica ecuatoriana. El enfoque del estudio es mixto, de tipo descriptivo y correlacional, incorporando notas aclaratorias generadas de la revisión exploratoria de investigaciones relacionadas con los ejes temáticos. Los resultados indican la existencia de inconsistencias en los gastos de inversión, produciendo incertidumbre sobre el manejo presupuestario en lo referente a Ciencia y Tecnología. Las conclusiones reflejan un bajo nivel de productividad y de crecimiento tecnológico, que conlleva a destacar ciertas limitantes y desequilibrio en materia de competitividad y bienestar social. El Estado debe reforzar su política socioeconómica, en virtud de fortalecer los ámbitos educativos, salud y bienestar social.
La nueva normalidad de la realidad educativa en el contexto ecuatoriano
Authors: Macias Arroyo Franklin Gregorio , Astudillo Erazo Lorgia Patricia , Macías Arroyo Silvino Alejandro
Published: December 2021

El sistema educativo diseñado para hacer frente a la era del COVID-19 está marcado por una nueva normalidad, en la que la digitalización impone formas de trabajar y aprender. Impulsa la educación hacia la tecnificación, un desarrollo que ya está en marcha, impulsado por el comercialismo y la ideología de mercado reinante. Por lo tanto, este artículo tiene como objetivo conocer la relación entre la nueva normalidad en la realidad educativa en el Ecuador, desde la perspectiva de los hogares ecuatorianos. En este estudio se utilizó el enfoque cuantitativo descriptivo, la técnica utilizada fue un muestreo aleatorio, se aplicó un cuestionario para identificar la nueva normalidad del hecho educativo en el Ecuador, mediante cuatro indicadores: (1) forma de impartir clases por parte de los docentes, (2) forma de evaluar clases por parte de los docentes, (3) plataformas para transmitir clases y (4) tecnologías para desarrollar clases. Se concluye que, si bien se han realizado varios estudios, la educación necesita ser explorada más a fondo. El cambio notorio en la forma de impartir y evaluar las clases, requiere una intervención a nivel de políticas para mejorar esta situación, además de exploraciones e investigaciones adicionales sobre la pedagogía eficaz para la enseñanza y el aprendizaje.
Mapping Tourism Potential Based on Urban Heritage Tourism in Medan City
Authors: Ponirin  , Rambe Tappil , Khairani Leylia
Published: December 2021

The city of Medan is the third-largest city in Indonesia and has historical buildings or heritage that can be revitalized as a cultural heritage with tourism potential that can be developed. However, until now, the colonial heritage buildings have been destroyed up to 70%. This research method uses a tourism anthropology approach with a qualitative research type that focuses on tourist destinations. The research location is a heritage area, a colonial heritage building in the Merdeka Square segment, Maimoon segment, Benteng segment, Youth segment, Polonia segment, and Sambu segment. The study results reveal that Medan has a heritage in the form of historic buildings that have the potential to be developed and represent the identity of the city of Medan. The potential for tourism development can be carried out in 3 (three) potential areas, namely: 1) The youth segment, which includes Gedung Juang 45, which currently functions as the Sumatran Money Museum, Tip Top Restaurant, and Tjong A Fie Mansion. 2) the Maimoon segment, which includes: Maimoon Palace and the Great Mosque. 3) The Merdeka Square segment includes City Hall, which currently functions as the Grand City Hall, Hotel De Boer (currently called Grand Inna Hotel), and the London Sumatra building. Through urban tourism based on urban heritage tourism, tourists can be invited to appreciate and interpret the objects observed. It serves as education and recreation for the community. This activity is also a means of preserving the wealth and identity of the city of Medan.
ANALISIS FAKTOR PEMBIAYAAN PERBANKAN SYARIAH PADA SEKTOR KONSTRUKSI DI INDONESIA
Authors: Tamia Tyahardi  , Kusnendi  , Aneu Cakhyaneu
Published: December 2021

Konstruksi merupakan salah satu sektor penting dalam mendukung pembangunan ekonomi di Indonesia dan berperan dalam menggerakkan sektor riil yang secara langsung menyangkut kehidupan orang banyak. Dalam pencapaian pembangunan, sektor konstruksi memerlukan peran perbankan untuk membantu akses permodalan melalui pemberian kredit atapun pembiayaan syariah yang cukup. Menurut Otoritas Jasa Keuangan (OJK) rendahnya pembiayaan sektor konstruksi disebabkan oleh karakteristik dari sektor konstruksi yang memerlukan dana dalam jumlah besar serta jangka waktu pengembalian yang relatif panjang. Penelitian ini bertujuan untuk mengetahui faktor-faktor yang mempengaruhi pembiayaan perbankan syariah pada sektor konstruksi periode 2011-2018. Objek penelitian ini adalah Tingkat Kecukupan Modal (CAR), Tingkat Likuiditas (FDR), Sertifikat Bank Indonesia Syariah (SBIS) dan rasio pembiayaan sektor konstruksi. Sedangkan subjek dalam penelitian adalah perbankan syariah di Indonesia.  Metode penelitian yang digunakan adalah korelasional dan pendekatan kuantitatif dengan desain eksplanatori dengan analisis regresi linear berganda. Variabel dependen dalam penelitian ini adalah pembiayaan konstruksi. Variabel independen dalam penelitian ini adalah Tingkat Kecukupan Modal (CAR), Tingkat Likuiditas (FDR), dan Sertifikat Bank Indonesia Syariah (SBIS). Hasil penelitian ini menunjukkan bahwa Tingkat Kecukupan Modal (CAR), Tingkat Likuiditas (FDR), dan Sertifikat Bank Indonesia Syariah (SBIS) berpengaruh signifikan secara simultan terhadap pembiayaan konstruksi. Tingkat Kecukupan Modal berpengaruh signifikan positif terhadap pembiayaan konstruksi, Tingkat Likuiditas berpengaruh signifikan dengan arah negatif terhadap pembiayaan konstruksi, dan Sertifikat Bank Indonesia Syariah (SBIS) berpengaruh signifikan negatif terhadap pembiayaan konstruksi.
ANALISIS SEKTOR INDUSTRI PENGOLAHA DITINJAU DARI PENYERAPAN TENAGA KERJA: di Kabupaten Bogor
Authors: Fakrudin Fakhrudin , Jamal Ade
Published: December 2021

Tujuan penelitian ini adalah mengkaji apakah sektor industri pengolahan terutama yang berskala besar dan sedang merupakan sektor basis atau bukan basis di wilayah Kabupaten Bogor ditinjau dari aspek perluasan lapangan pekerjaaan. Metode kuantitatif yang digunakan dalam penelitian ini adalah (1) Analisis Location Quotient (LQ), (2) Analisis surplus tenaga kerja, (3) Koefisien pengganda, (4) Kuosien spesialisasi, (5) Kuosien lokalisasi. Hasilnya menunjukan sektor industri pengolahan merupakan sektor basis berdasarkan indikator pendapatan. Namun, sektor tersebut bukan merupakan sektor basis berdasarkan indikator tenaga kerja. Hal tersebut menunjukkan bahwa sektor industri pengolahan kurang berperan dalam perluasan lapangan pekejaan dibanding sektor lainnya. Tetapi,  beberapa subsektor industri pengolahan  merupakan subsektor basis. Subsektor-subsektor tersebut adalah subsektor makanan, minuman dan tembakau, subsektor tekstil, pakaian jadi dan kulit, subsektor kayu, bambu, rotan, rumput dan sejenisnya termasuk perabot rumah tangga, subsektor kertas, barang dari kertas, percetakan dan penerbitan subsektor kimia dan barang dari kimia, minyak bumi, batubara, karet dan subsektor barang galian bukan logam.

            Kata kunci: LQ; sektor basis; sektor industri
ANALISIS DETERMINAN ISLAMICITY PERFORMANCE INDEX PADA BANK UMUM SYARIAH DI INDONESIA
Authors: Kristianingsih Kristianingsih , Wardhana Mahesa Dava , Setiawan Setiawan
Published: December 2021

Islamicity Performance Index (IPI) is a model developed to measure the performance of Islamic banks with a socio-economic approach. This study reveals the factors that affect the Islamicity Performance Index (IPI) which is represented by the Profit Sharing Financing Ratio (PSR) index. With a sample of 12 Islamic Commercial Banks (BUS) in Indonesia, this study uses static and dynamic panel data analysis. The data used is secondary data derived from the annual financial statements of each BUS. The results showed a significant positive effect of TPF and FDR on PSR in the static and dynamic models, significant negative NPF on PSR in the static model, significant positive NPF on PSR in the dynamic model, insignificant negative BOPO on PSR in the static model, positive insignificant BOPO on PSR in the dynamic model, significant positive PSR (-1) on PSR in the dynamic model. Simultaneously the independent variable is able to explain the dependent variable by 95.8%.
PEMANFAATAN PEMBANGKIT LISTRIK TENAGA SURYA UNTUK KOTAK PENDINGIN (COOL BOX)
Authors: Mochammad Nuruddin  , Saiful Anwar  , Yuli Hananto
Published: December 2021

Salah satu upaya untuk penanganan pasca panen produk holtikultura adalah penyimpanan produk dalam kondisi dingin dengan menggunakan mesin pendingin kompresi uap. Kebutuhan energi listrik untuk mesin pendingin kompresi uap ini cukap besar sehingga diperlukan upaya penghematan energi untuk mengurangi biaya energi pasca panen. Tujuan dari penelitian ini adalah merancang pembangkit listik tenaga surya yang sesuai untuk mensuplai energi listrik pada kotak pendingin (cool box). Hasil perancangan yang dilakukan didapatkan bahwa PLTS yang sesuai dengan tujuan tersebut adalah sistem yang dikombinasikan dengan PLN agar mampu menyuplai kebutuhan energi listrik secara kontinyu. PLTS dengan jaringan listrik dikendalikan oleh switch pengontrol yang kerjanya satu cara arah: ketika PLTS bekerja (on), maka suplai listik dari PLN akan terputus dan begitu sebalihya. Hasil pengujian yang telah dilakukan, sistem PLTS ini mampu mengurangi kebutuhan energi listrik dari PLN untuk lemari pendingin hingga mencapai 78,9% tanpa beban dan 77,9% dengan beban.
Rancang bangun modul proteksi arus beban lebih dan hubung singkat
Authors: Aceng Daud
Published: December 2021

Motor listrik adalah salah pealatan listrik yang banyak digunakan di dunia yang peranannya sangat penting untuk menggerakan mesin-mesin di indutsri.. Maka dari itu motor ini membutuhkan sebuah Rele Proteksi yang berfungsi sebagai pemutus daya listrik dari jaringan ketika beban berlebihan atau ketika terjadi hubung singkat pada belitan statornya. Dalam penelitian ini dibuat rele proteksi motor berbasis mikrokontroller arduino uno dengan beberapa komponen pendukung yang di antaranya berupa sensor arus menggunakan ACS 712 yang mengkonversi arus menjadi tegangan 0-5 V. Tegangan output dari sensor arus diprogram menggunakan software arduino uno untuk menggerakan sebuah rele yang akan memutuskan kontaktor dan menyalakan indikator ketika terjadi arus berlebih. Dari hasil pengujian, proteksi dapat bekerja ketika arus pada generator melebihi arus setting yang telah ditentukan dengan waktu tunda rele selama 200 ms.

Kata Kunci : Motor Lsitrik, Rele Proteksi, Kontaktor, Arduino UNO, Mikrokontroller, sensor arus, ACS 712
Pengembangan sistem manajemen baterai pada PLTS menggunakan on-off grid tie inverter
Authors: Sapto Prayogo
Published: December 2021

Permasalahan pada Pembangkit Listrik Tenaga Surya (PLTS) yang menggunakan inverter jenis on/off grid tie inverter adalah tidak dilengkapi dengan mekanisme kontrol penyimpanan daya ke baterai. Dimana pada saat bekerja sebagai on grid inverter maka baterai seharusnya terlepas dari inverter hal ini ditujukan untuk menghindari baterai terjadi over discharge karena daya keluaran pada inverter saat on grid akan bekerja maksimum dengan adanya MPPT. Sementara pada saat off grid, baterai harus terhubung dengan inverter untuk menstabilkan daya keluaran inverter karena adanya fluktuasi radiasi matahari dan beban AC. Pada penelitian ini dikembangkan sistem manajemen baterai untuk mengatur mekanisme pengisian dan pembebanan baterai pada inverter jenis on/off grid. Sistem manajemen baterai akan mengatur mekanisme pengisian baterai pada saat bekerja sebagai on grid inverter dan mengatur interkoneksi ke inverter pada saat bekerja sebagai off grid inverter, khususnya untuk mengantisipasi kondisi over charge dan over discharge. Hasil pengujian menunjukkan efesiensi BCU sebesar  95,1% dan efesiensi inverter sebesar 94,8%. Waktu transisi yang diperlukan untuk berpindah dari kondisi off grid ke kondisi on grid selama 41,4 detik. Perpindahan interkoneksi baterai dengan rangkaian inverter ke rangkaian pengisian baterai tidak mengganggu kinerja rangkaian PLTS on/off grid.

Keywords: on grid, off grid, inverter, MPPT, baterai
Military-protester relations: Insights from nonviolence research
Authors: Martin Brian
Published: December 2021

Military forces are sometimes called out to confront unarmed civilian protesters, a contingency for which they may or may not be prepared. Studies of civil-military relations have focused on relations between civilian and military elites, with interactions between armed forces and civilian protesters given little or no attention. The objective here is to improve understanding of military-protester dynamics. Key relevant features of nonviolent action are outlined, including methods, campaign stages and theoretical assumptions, with a particular focus on interactions with troops. The implications for military-protester dynamics are spelled out with illustrations from several protest campaigns. When troops use force against non-resistant protesters, this sometimes creates more support for the protest movement, a process called political jiu-jitsu. An important method used by some protesters is fraternisation, namely trying to win over troops to their side. Commanders and troops, through their actions, can encourage or discourage protesters’ use of nonviolent methods. Learning about military-protester dynamics is important for both strategists and practitioners.
Inmigración y preferencias por la redistribución en América Latina
Authors:   , Martínez Correa Julián Gabriel
Published: December 2021

Este trabajo analiza el efecto de la inmigración en las preferencias por la redistribución en América Latina. Para ello, sigo una doble estrategia de investigación: un análisis transversal con censos armonizados y un enfoque de efectos fijos con encuestas de hogares, ambos unidos con datos de actitudinales para el período 2008-2016. Los resultados sugieren una relación negativa entre el porcentaje de inmigrantes a nivel provincial y el apoyo a las políticas redistributivas. El caso específico de la migración venezolana a Colombia muestra resultados en la misma dirección. Este efecto anti-distributivo es mayor entre las personas que se consideran ideológicamente de derecha, son altamente calificadas y tienen altos ingresos, y no trabajan en el sector público. Además, al considerar las características de los inmigrantes, encuentro que el efecto se explica principalmente por la inmigración de baja calificación y de países fronterizos.
Evaluasi Lahan Tambak untuk Budidaya Rumput Laut Gracilaria sp di Kabupaten Bone
Authors: Sukri Irwansyah , Arfan Amal , Nasiah Nasiah
Published: December 2021

This study is survey research that aims to evaluate the feasibility of ponds for the cultivation of Gracilaria sp. The number of sample points is 6 determined by using a purposive sampling method based on the location and source of water of the pond in Tellu Siattinge District, Bone Regency. Measurement of physical-chemical parameters each station I, II, III, IV, V, VI showed that temperature of 34, 32, 32, 31, 32, 31 ° C, depth of 40, 47, 45, 45, 50, 52 cm, brightness of 87, 85, 73, 78, 60, 63%, water pH 6.5, 7, 6.5, 6.5, 7, 7, dissolved oxygen (DO) 4.1, 2.6 , 7.8, 3.5, 2.1, 3.5 ppm, salinity of 14, 16, 20, 21, 25, 25 ppt, phosphorus content 0.017, 0.015, 0.018, 0.023, 0.014, 0.021 ppm, nitrate levels 0.011, 0.15, 0.29, 0.021, 0.011, 0.023 ppm, bottom of the pond are clay except station VI with clay loam, and all ponds locations sheltered from strong winds and strong waves. The result of the study showed that station II, III, IV, and VI are classes S1 (suitable), whereas at the station I and V are classes S2.
Tinjauan Geografi dalam Pelaksanaan Pendidikan Seksual Pada Generasi Muda Indonesia
Authors: Syamsunardi Syamsunardi , Syam Nur
Published: December 2021

Sexual education is one of the alternatives to smooth the path of Indonesia to reach the golden generation in the future by implementing sexual education for the younger generation can be done by changing the term Sexual Education into reproductive health education, family health education or gender education (gender). This research was conducted in Takalar Regency, South Sulawesi. This study aims to describe the strategy of implementing sexual education for the younger generation and know the purpose of sexual education for adolescents in Indonesia, especially in Takalar Regency. The research method used is qualitative study library. The results of this study show that it takes camouflage of the term sexual education so as not to make people amused or ashamed to listen to what the presenter says about sexual education. Camouflage of appropriate sexual education terms are reproductive health education, family health education or gender education (gender) as well as teaching sexual education with camouflage reproductive health education, family health education or gender education (gender) to prevent the younger generation from various negative things such as premarital sex among indonesian adolescents, especially in Takalar district.
Persepsi Masyarakat Terhadap Pendidikan Formal Kaitannya dengan Jumlah Anak-anak Putus Sekolah
Authors: Tubu Bunga , Malik Abd , Syarif Erman
Published: December 2021

This study aims to determine : 1). Public perception of formal education in Takalar Village, Mappakasunggu Disrict, Takalar Regency. 2). Factors affecting school dropout in Takalar Village, Mappakasunggu Disrict, Takalar Regency. 3). The relationship between public perceptions of formal education with factor affecting children dropout school. The population in this study are people who have children age 7-18 years old but do not attend school. The number of population is this study is not known with certainly, so the sampling was carried out in a non random- way, namely by using the snowball sampling technique. The sampel in this study amounted to 36 people. This research ia a quantitative descriptive research. Data collaction technique include observasion, questionnaires and documentation. Data analysis was performed using descriptive analysis and Rank spearman correlation test. Based on the research results, the level of public perception in Takalar Village is still low, namely 58,3%. In general, the factor that cause children dropout of school in Takalar Village, Mappakasunggu Disrict, Takalar Regency are due the parents recent education, parents job, income, total dependents, parent motivation and interest in children learning. There is a significant relationship between the latest education work and income to the community’s perception of formal education.
Seaweed Farmers Perceptions of Children's Formal Education Level in Bulu-Bulu Village, Tonra District, Bone Regency
Authors: Maddatuang Maddatuang , Suprapta Suprapta , Winarti Wildi
Published: December 2021

This research is a descriptive study that aims to: 1) Knowing the condition of formal education for the children of seaweed farmers in Bulu-Bulu Village. 2) Know how seaweed farmers' perceptions of the level of formal education of children in Bulu-Bulu Village, Tonra District, Bone Regency. 3) Knowing what factors influence the perceptions of seaweed farmers on the level of formal education of children in Bulu-Bulu Village. The population ini this study was 114 housedhold heads. The sampling technique used the Snowball Sampling technique with a sample size of 30 household heads. Data collection was carried out by means of observation, interviews, and documentation. Data analysis technique using descriptive statistical analysis techniques.The results of this study indicate that the most of the formal education conditions of the children of seaweed farmers  in the village of Bulu-Bulu, Tonra subdistrict, are mostly still continuing their education at the primary and secondary levels. Perception of seaweed farmers on the level of formal education of children in Bulu-Bulu Village, Tonra District is quite good (positive). Seaweed farmers' perceptions of the level of formal education of children are influenced by factors such as education level, income level, and workload.
Fałsz społeczny i los kobiet w publicystyce Jana Niecisława Baudouina de Courtenay (1845–1929)
Authors: Duda Krzysztof
Published: December 2021

Celem artykułu jest przybliżenie postaci i publicystyki wybitnego polskiego językoznawcy – Jana Niecisława Baudouin de Courtenay. W artykule zostaną nakreślone podstawowe kwestie, które podejmował uczony w swojej działalności publicystycznej, tj.: fałszywość w życiu społecznym oraz problem dyskryminacji kobiet w przestrzeni społecznej i domowej. Wspomniana zostanie także postawa samego autora, który dokonując krytyki swojego życia, podejmuje decyzję dotyczącą odejścia od Kościoła katolickiego, argumentując to potrzebą życia w prawdzie.
Adaptacje filmowe polskiej literatury młodzieżowej XXI wieku jako system kodów kulturowych
Authors: Gęborska Marlena
Published: December 2021

W artykule przeanalizowano adaptacje filmowe polskiej literatury młodzieżowej wydanej w XXI w. oraz wskazano kody kulturowe charakterystyczne dla współczesnych, polskich produkcji skierowanych do młodego odbiorcy. Interesujące wydały się cechy utworów najchętniej adaptowanych oraz tendencje widoczne w filmowych adaptacjach rozumianych jako reinterpretacje książkowych pre-tekstów.

Zastosowano metodę analizy źródeł (materiału filmowego, serwisów streamingowych) oraz case study. Ponadto posłużono się elementami metody statystycznej w odniesieniu do dostępności adaptacji filmowych i ich popularności wśród młodych odbiorców. Badanie przeprowadzono techniką ankiety, narzędziem był elektroniczny kwestionariusz skierowany w pierwszym przypadku do grupy wiekowej 14–16 lat. Drugi kwestionariusz był adresowany do studentów i zawierał zestaw do zapisywania skojarzeń. Analiza materiału obaliła hipotezę badawczą, jakoby współcześnie w Polsce chętnie sięgano po utwory literackie dla młodzieży i adaptowano je na potrzeby filmów pełnometrażowych. Okazało się, że nieliczne wyjątki to przede wszystkim adaptacje gatunków fantasy i science fiction. Analiza kodów kulturowych pokazała, że tworzą one zestaw wzajemnie powiązanych znaczeń. Na gruncie polskich adaptacji w tym systemie dominują relacje rodzinne i przyjacielskie, dom rodzinny, podróże, zegary symbolizujące upływający czas.
Echa Goi w graficznych obrazach konfliktów społecznych i politycznych
Authors: Bigaj-Zwonek Beata
Published: December 2021

Świadkowie trudnych wydarzeń zapisujący je na bieżąco obrazami nie mają możliwości koncentracji na formie dzieł i dopiero wracając do wspomnień, w późniejszych projektach, skupiają się na komponentach artystycznych. Tak w przypadku bezpośredniego szkicu, jak i dopracowanego obrazu prawdę rejestrowanych wydarzeń może podkreślać tradycja artystyczna, z tego względu rysunki obserwatorów niepokojów społecznych i politycznych niejednokrotnie nawiązują do twórczości Francisca Goi. Artykuł przybliża cechy grafik hiszpańskiego mistrza i przedstawia przykłady dzieł z różnych okresów, które wskazują na łączność z jego językiem artystycznym.