bluuebunny/crossref_metadata_2025 huggingface dataset:
E-Book Mobile Application: A Case of Kabale University Mukombe Library, Uganda
Authors: Ninsiima Clare , Kyomugisha Patricia
Published: September 2022

Globally, many academic e-books are available in user-friendly forms like PDF and HTML that can be accessed on laptops, iPads, and smartphones, even though some e-books require a special e-book reader. However, university students find it difficult to access e-books because some of the university libraries have few computers that hold the downloaded e-books, which are stored in a folder, and little effort has been made as a result; there is low usage of e-books. The project’s goal was to investigate how e-book applications work and how students at Kabale University can access e-books via mobile phone or tablet. The objectives of the project were to investigate the existing e-books application, design and develop the e-books application, and test and validate the developed application that enables students at Kabale University to access e-books simultaneously. The literature review helped me read a number of pieces of literature about e-book applications. They were information sources about the E-books application such as the internet, books, journals, and newspapers, among others. The use of existing information from the library helped to develop a model to predict the E-book application and testing of the application using Android smartphones. It was concluded that the implementation of the e-book’s application was done using Android to enable users to access the books on their mobile phones or tablets. The study recommends that the administrator of the system should be taken through the tasks in order to be able to upload books ready for the application
Neuregulins: subcellular localization, signaling pathways and their relationship with neuroplasticity and neurological diseases
Authors: Longart Marines , Calderón Christian , González Manuel , Grela María Elena , Martínez Juan Carlos
Published: September 2022

Neuregulins (NRGs) and their cognate ErbB receptors (ErbB2–ErbB4) constitute a vast group of proteins encoded by six different genes (NRG1–6) and many isoforms with critical roles in the development and functioning of the nervous system. NRGs are known to regulate important processes in the nervous system like neural development, neuronal differentiation, neurite outgrowth, and specification. These factors are involved in the regulation of neurotransmission pathways and the modulation of several forms of synaptic plasticity. Due to NRGs’ role in synaptic plasticity, defects in their normal functioning are translated into altered signaling networks, which have been linked to susceptibility to developing psychiatric disorders like schizophrenia (SZ), autism, depression, and bipolar disorders. Additionally, deviation of the NRG normal functioning is involved in neurological diseases like Alzheimer’s and Parkinson’s disease. Contrastingly, NRG/ErbB signaling is also involved in the recovery after traumatic brain injuries (e.g., ischemic stroke). The NRG/ErbB signaling complex is highly unusual because the ligands (mainly NRG1–NRG3, with their multiple isoforms) and receptors (ErbB2–ErbB4) can orchestrate vast signaling complexes, with a wide reach within the processes that govern the development and appropriate function of the nervous system. This may explain why NRGs and ErbB receptor genes have been linked to complex brain disorders, like SZ. This review, are discussed important aspects of NRG and their relevance for nervous system functioning, including 1) subcellular localization, 2) signaling pathways involved in neuronal functions, 3) effect on neurite development and synapse formation, 4) modulation of some mechanisms of synaptic plasticity [long-term potentiation (LTP), depotentiation, long-term depression (LTD)] and 5) roles of NRGs in some neurological diseases. This review intends to present a summary of the main findings about this family of proteins, which might position them as one of the master regulators of brain functioning.
Carcass fatty acid composition and sensory properties of Nile tilapia (Oreochromis niloticus) fed on oilseed meals with crude papain enzyme
Authors: Kirimi James Gitonga , Musalia Levi Mugalavai , Munguti Jonathan Mbonge , Adiel Magana
Published: September 2022

In this study, proximate body composition, fillets fatty acid and sensory properties of Nile tilapia fed on oilseed meals with crude papain enzyme were determined. A control diet (D1) of 300g/kg crude protein (CP) and (2900Kcal/kg) was formulated using fishmeal (Rastrionaebola argentea) (FM) and test diets by replacing 10% CP of FM by soybean meal (SBM) (D2), canola meal (CM) (D3) and sunflower meal (SFM) (D4). One hundred and one days feeding trial was conducted in a 4x2 factorial design on 4 diets (D1, D2, D3 and D4) with (0.06%) and (0%) enzyme using 720 Nile tilapia fingerlings (7±3g). Fish were fed twice daily at 5% of their biomass at 10am and 4pm in two equal meals. At the end of feeding trial, fish were starved for 24 hrs and weighed. A sample of ten fish representing the average weight of each replicated group was used. The fillets fatty acid profiles were determined by MPA FT-NIR spectrometer. Organoleptic tests of both fresh and steamed fish were carried out by eight semi trained panellists using 5-point hedonic scale. There was increase (p<0.05) in carcass proximate composition in all the treatments. Fillets fatty acid levels were influenced by the crude papain enzyme (p<0.05). Palmitic acid (C16:0), linoleic acid (C18:2n-6) and oleic acid (C18:1n-9) were the most abundant fatty acids in the fillets. Fish fed on fishmeal based diet recorded higher percentage (22.56) of polyunsaturated fatty acids (PUFA). There was significant difference among the treatments (p<0.05) for general appearance. Fish fed on crude papain enzyme treated diets were less preferred. It is recommended that more research be done on the effect of papain enzyme on the carcass fatty acid and sensory properties of farmed fish.
The use of water quality index and water pollution index in assessing the water quality and suitability of the river Molo water basin, Kenya
Authors: Kipsang Nathan K. , Kibet Joshua , Adongo John O.
Published: September 2022

Water quality assessment has become a very essential scientific procedure for qualifying water for drinking and general purpose use, and better public health policy on clean water supply. Various tools have been employed to determine the status of water systems for drinking, industrial and general use. For the purpose of this study, water quality index (WQI) and the recently developed water pollution index (WPI) have been adopted to evaluate the water of the Molo water basin. The world health organization (WHO) has defined limits of these parameters beyond which the quality of water is considered unsuitable for a specific use. The study was carried out in December, 2021 during the dry season. In this contribution, pH, conductivity, TDS, salinity, major cations and anions, and selected heavy metals were explored. Of the major cations Na reported the highest concentration at 1800 mg/L whereas in the anion category, the Cl gave the highest concentration at 110 mg/L. The highest pH, TDS and salinity were 8.5, 146.33, and 282.67, respectively. The data obtained were used to determine the water quality index (WQI) and water pollution index (WPI) of the Molo water basin based on the world health organization (WHO) standards. The average WQI obtained was 57.47 indicating that the water is slightly polluted.  Also the average WPI obtained was 0.77 indicating that the water from the water basin is not of good quality. Sediment morphology and composition was also determined using energy dispersive X-ray spectroscopy (EDS). The findings showed the presence of heavy metal pollutants of concern which include lead, manganese and copper. Therefore, with respect to WQI, WPI and sediment morphology, the water basin is significantly polluted. There is need therefore for the government and health authorities to formulate policies aimed at regulating pollution activities which may endanger the Molo water basin.
Effect of ecotype and age on semen characteristics of three Tanzanian native chickens
Authors: Luvanga Julius , Kashoma Isaac
Published: September 2022

Several findings on the semen characteristics of domestic chickens have revealed that ecotype and age significantly affect semen quality. There is, however, lack of data on effects of ecotype and age on semen characteristics of Tanzanian native roosters. This study evaluated the effect of ecotypes (Ching’wekwe, Morogoro-medium and Kuchi) and ages (11-15 and 24-28 months) on semen quality. A total of 192 semen samples were collected from 12 roosters (four from each ecotype) using the abdominal massage technique at weekly interval for four consecutive months. Semen characteristics of individual samples were evaluated. The semen volume, pH, sperm motility, sperm concentration, proportion of spermatozoa with normal morphology and proportion of live spermatozoa among the ecotypes varied from 0.42±0.04 to 0.52±0.03mL, 7.01±0.00 to 7.02±0.00, 72.81±1.27 to 76.63±1.35%, 3.90±0.98 to 4.12±1.96 x 109/mL, 86.16±0.55 to 89.38±0.80% and 88.06±1.13 to 90.97±0.81% respectively. However, only the variations in proportion of spermatozoa with normal morphology and proportion of live spermatozoa among the ecotypes were significant (P<0.05). The semen volume, pH, sperm motility, sperm concentration, proportion of spermatozoa with normal morphology and proportion of live spermatozoa among the two age groups varied from 0.44±0.03 to 0.52±0.03mL, 7.01±0.00 to 7.02±0.00, 73.88±1.13 to75.92±0.99%, 3.80±0.45 to 4.28±0.32 x 109/mL, 87.02±0.58 to 88.15±0.64%, 88.27±0.77 to 89.83±0.77% respectively. However, only the variations in semen volume among the two age groups were significant (P<0.05). The Pearson correlation coefficients between semen volume and other semen quality characteristics were mostly low to medium with positive values ranging from 0.01-0.51 between semen volume and sperm motility and between morphological normal spermatozoa and proportion of live spermatozoa, respectively. Although there is minimal variation in semen quality among ecotypes and age groups, all the ecotypes might still be used in breeding purposes to maintain native chickens, because the results found were within the reference range for chickens.
Analisis Kinerja Dosen pada Sekolah Tinggi Ilmu Ekonomi di Kota Semarang
Authors: Ginanjar Retno , Winarti Endah , Yoga I Gusti Agung K
Published: September 2022

The purpose of this study was to analyze the effect of competence and emotional intelligence on the performance of lecturers with organizational commitment as a mediating variable. The population in this study were lecturers of the STIE foundation in Semarang City as many as 288 people. The sampling technique in this study used the purposive judgment sampling method, namely the sampling method using certain considerations that were adapted to the research objectives. The considerations and criteria used are permanent lecturers of the foundation, totaling 288 people. The data processed were 165 respondents. Data processing method using SPSS. The results of hypothesis testing show that competence and emotional intelligence have a positive and significant effect on organizational commitment, so it can be interpreted that the higher the competence and emotional intelligence, the higher the organizational commitment. Organizational commitment, competence and emotional intelligence have a positive and significant effect on lecturer performance, so it can be interpreted that the higher the organizational commitment, competence and emotional intelligence, the better the lecturer's performance. The results of the analysis of mediating variables using the Sobel test, found that organizational commitment can mediate the effect of competence and emotional intelligence on lecturer performance.
Seizing Nuclear Tehran: Obstacles to Understanding Iranian Nuclear Activities
Authors: Therme Clément , Egeland Kjølv , Taha Hebatalla
Published: September 2022

In this article, we interrogate some of the central assumptions in the literature on Iran's nuclear behavior, including the role of the United States as a benevolent hegemon, the revisionist character of the Iranian government, the utility and efficacy of sanctions, and the widespread assumption that Iran is bent on obtaining and even using the bomb. We maintain that contemporary debates on the Iranian nuclear issue display similarities to Kremlinology during the Cold War, being deeply politicized and subject to bias and self-censorship. We conclude by highlighting ways for scholars to recast the discussion.
Alteraciones neoplásicas en el paciente trasplantado renal. Una revisión sistemática
Authors: Guillén-Gómez Irene , Blanco-García Marina , Aránega-Gavilán Susana , Crespo-Montero Rodolfo
Published: September 2022

Introducción: El trasplante renal se ha destacado como la mejor terapia renal sustitutiva para la enfermedad renal crónica terminal, aunque conlleva una serie de riesgos entre los que el cáncer se destaca cada vez más, por lo que parece importante determinar el impacto que tiene en esta población.Objetivo: Conocer y sintetizar la evidencia científica acerca de la incidencia de neoplasias en pacientes trasplantados renales, así como las variables relacionadas con las mismas.Metodología: Se realizó una revisión sistemática en la que se incluyeron 14 artículos procedentes de las bases de Pubmed, Scopus, Scielo, WOS y Google Académico. Como términos MeSH se utilizaron: neoplasias (neoplasms), trasplante de riñón (kidney transplantation), incidencia (incidence), riesgo (risk), factores de riesgo (risk factors). Se incluyeron artículos originales en inglés y español, en población trasplantada adulta.Resultados: Se incluyeron 14 artículos de diseño observacional. De la revisión emergieron como principales variables: incidencia general, datos demográficos y tratamientos previos, otras características asociadas, tumores más frecuentes y medidas preventivas.Conclusiones: La incidencia de neoplasias en el paciente trasplantado es alta, sobre todo en la edad avanzada y pacientes con tratamiento inmunosupresor con ciclosporina y azatioprina siendo este último, junto al trasplante procedente de cadáver, los principales factores de riesgo encontrados. Los cánceres de piel no melanoma son los más prevalentes y como medidas de prevención se destaca llevar a cabo un cribado rutinario, fomento de una vida saludable, y promoción y potenciación de la vacunación de la hepatitis B.
Sistema percutáneo de creación de fistulas arteriovenosas en pacientes con hemodiálisis: nuestra experiencia inicial
Authors: Sánchez-Villar Isidro , García-González Zoraida , Pestana-Rodríguez Raquel , García-Ruiz Ana
Published: September 2022

Introducción: La fístula arteriovenosa es considerada el acceso de elección para los pacientes en hemodiálisis; en los últimos años emerge una alternativa a la creación quirúrgica de esta: la fístula arteriovenosa endovascular. Esta nueva tecnología conlleva un método menos agresivo y sin cirugía.Objetivo: Describir los datos preliminares de nuestra unidad tras la implantación de este sistema novedoso, así como su implicación para enfermería.Material y Método: Análisis descriptivo retrospectivo de las FAV-endovasculares realizadas a cinco pacientes mediante técnica percutánea. Se consideraron las características de los pacientes, de las FAV-endovasculares realizadas y la dificultad para su punción (escala EVA).Resultados: La edad media fue de 63 (47-77) años, 100% hombres, dializándose con catéter tunelizado, a 4 de los pacientes se les había realizado al menos una fístula arteriovenosa quirúrgica sin éxito. La creación de la FAV-endovascular fue exitosa en 4 de los 5 pacientes, todas con localización radio-radial. No hubo complicaciones durante el procedimiento. De las 4 FAV-endovasculares 3 precisaron intervención endovascular posterior para su maduración. La media de tiempo de maduración 4,5 (4-5) meses; las 4 continuaron permeables al año.Puntuada por 9 enfermeras experimentadas, la mediana de dificultad fue: punción inicial: 7, a partir del mes: 5 y comparada con las FAV quirúrgicas: 5.Conclusiones: La FAV-endovascular supuso un procedimiento mínimamente invasivo con menor impacto para los pacientes, elevado éxito inicial, pero precisó intervención endovascular posterior para su maduración. La dificultad para la punción fue más elevada inicialmente. La ausencia de cicatriz  supuso realizar una exploración más exhaustiva.
Synthesis of C6-modified mannose 1-phosphates and evaluation of derived sugar nucleotides against GDP-mannose dehydrogenase
Authors: Ahmadipour Sanaz , Wahart Alice J C , Dolan Jonathan P , Beswick Laura , Hawes Chris S , Field Robert A , Miller Gavin J
Published: September 2022

Sufferers of cystic fibrosis are at significant risk of contracting chronic bacterial lung infections. The dominant pathogen in these cases is mucoid Pseudomonas aeruginosa. Such infections are characterised by overproduction of the exopolysaccharide alginate. We present herein the design and chemoenzymatic synthesis of sugar nucleotide tools to probe a critical enzyme within alginate biosynthesis, GDP-mannose dehydrogenase (GMD). We first synthesise C6-modified glycosyl 1-phosphates, incorporating 6-amino, 6-chloro and 6-sulfhydryl groups, followed by their evaluation as substrates for enzymatic pyrophosphorylative coupling. The development of this methodology enables access to GDP 6-chloro-6-deoxy-ᴅ-mannose and its evaluation against GMD.
Novel Bis-Triazole Scaffold Accessed via Two Tandem [3+2] Cycloaddition Events Including an Uncatalyzed, Room-Temperature Azide-Alkyne Click Reaction
Authors: Malkova Ksenia , Bubyrev Andrey , Krivovicheva Vasilisa , Dar'in Dmitry , Bunev Alexander , Krasavin Mikhail
Published: September 2022

The previously described α-acetyl-α-diazomethane sulfonamide was employed in a three-component reaction with azide-containing benzaldehydes and propargylamines. Besides the initial formation of the triazole core, the reaction proceeded further, in uncatalyzed fashion at room temperature and yielded, after intramolecular azide-alkyne click reaction novel, structurally intriguing bis-triazoles.
Tingkatan Faktor-Faktor Penyebab Kesulitan Belajar IPA di SMP Negeri 2 Gedangan
Authors: Jannah Anisa Baroroh Khoyumu , Sartika Septi Budi
Published: September 2022

Penelitian ini bertujuan untuk mendeskripsikan tingkatan faktor-faktor penyebab kesulitan belajar pada siswa dalam pembelajaran IPA. Metode penelitian yang digunakan adalah Kuantitatif Survey. Instrumen penelitian yang digunakan berupa angket/kuesioner. Teknik pengambilan sampel pada penelitian ini adalah random sampling. Analisis data menggunakan deskriptif. Hasil analisis data pada penelitian ini Tingkatan Faktor penyebab kesulitan belajar siswa paling tinggi adalah minat belajar 80%, kemudian faktor lingkungan sekolah 74%, selanjutnya faktor cara mengajar guru 70%, faktor kebiasaan belajar 49%, dan faktor minat belajar 38%. Dapat disimpulkan bahwa Faktor penyebab kesulitan belajar paling tinggi dari faktor internal yaitu minat belajar pada siswa dan faktor penyebab kesulitan belajar paling rendah yaitu kebiasaan belajar.
B-learning: oportunidades de aprendizaje en el nuevo contexto educativo
Authors: Benavides Avellaneda Mg. Jener Salomón
Published: September 2022

El vertiginoso avance de la ciencia y la tecnología ha impactado profundamente en los sistemas educativos, evolucionando hacia modelos y propuestas metodológicas que han permitido traspasar las fronteras físicas del aula; ante ello, la enseñanza “híbrida”, conocida como B-learning, se erige actualmente como la principal opción de implementación en las escuelas al combinar lo mejor de la enseñanza presencial con la enseñanza virtual. El presente artículo tiene como objetivo analizar el estado de la investigación  de este modelo a nivel global en los últimos años, y conocer así su transcendencia en el ámbito pedagógico; está enmarcado en el enfoque cualitativo, correspondiente al método analítico-sintético, y se centra en primer instancia en una revisión bibliográfica de la literatura científica producida sobre Blended learning en reconocidas bases de datos y repositorios científicos, luego se realiza un análisis de contenido con el propósito de obtener la información más relevante de las publicaciones investigadas, y finalmente se estructura y clasifica toda esta información, según sus inicios, conceptualización y terminología, caracterización y tendencias, aportes al sistema educativo, desventajas y su relación con el contexto actual.   

 Los resultados de esta investigación indican que existen opiniones positivas y buena predisposición de la comunidad científica para adoptar este enfoque metodológico en el sector educación, concluyéndose que, ante el escenario actual, se hace imprescindible el rediseño de las metodologías de enseñanza y la transición hacia un nuevo modelo educativo, más flexible dinámico e interactivo, como lo es B-learning, permitiendo así, abrir nuevos horizontes educativos
Estrategias de innovación tecnológica frente a la pandemia COVID-19 en el comercio automotriz de Guasave, Sinaloa, México.
Authors: Urías Rivas Dra. María Oralia , Lugo Hernández Dra. Lourdes Teresa
Published: September 2022

El presente artículo expone los tipos de estrategia de innovación tecnológica que utilizó el comercio automotriz de Guasave, Sinaloa, México frente a la pandemia COVID-19, este estudio se realizó con la finalidad de elaborar nuevos planes en el los procesos de las operaciones de la empresa, realizando el trabajando desde casa (Home Office), para resolver los desafió mediante la adaptación y trasformación de la digitalización de las funciones del personal. La metodología utilizada fue el enfoque mixto con estudio fenomenológico, deductiva y descriptivo, las técnicas e instrumentos utilizadas fueron la entrevista, observación, notas y cuestionario el cuál se aplicó mediante un formulario online. Los resultados mostraron que las principales estrategias fueron la inversión en redes tecnológicas para estar conectados en todo momento que incluyó la compra de computadoras portátiles y teléfonos inteligentes. Además, implementaron el Business Development Center (BDC) que es un método de atención de manera digital o telefónica a través de un call center. Asimismo, utilizarón plataformas digitales para el área de ventas, atención a clientes y capacitación.
Hallazgos histopatológicos de las histerectomías obstétricas en el hospital de la Mujer (SSM) de Morelia, Michoacán de 2015 a 2018
Authors: Casas Villafan Miriam Cecilia , Ruiz Marines Daniel , Rosales Altamiran Maleni , Ortiz Verdin Maira Denisy , González Villegas Graciela , Picazo Carranza Alma Rosa
Published: September 2022

Introducción: La incidencia de histerectomía obstétrica en el mundo se reporta de 7 a 13 por cada 10,000 nacimientos, siendo más frecuente la variedad post-cesárea.

Objetivo: Describir los hallazgos histopatológicos de la histerectomía obstétrica realizada en el hospital de la mujer de Morelia, Michoacán del 2015 al 2018.

Material y métodos: estudio transversal, retrospectivo, descriptivo, documental, del 1 de enero de 2015 al 31 de diciembre del 2018 en un Hospital General, Público (HGP) de segundo nivel de atención de Morelia, Michoacán, se incluyeron 43 expediente clínicos de mujeres que les fue realizada histerectomía obstétrica en el servicio de toco-cirugía.

Resultado: en el período de 2015 a 2018 se atendieron 23, 220 pacientes, los nacimientos, fueron: partos 14 577, cesáreas 8 643, legrados 3 172,  el índice de cesáreas realizadas fue de 37.2 %, y se ubica dentro de la estadística reportada a nivel nacional, la edad de las pacientes con mayor incidencia de histerectomía obstétrica fue de 26 a 35 años que representa 62%, el 83.8% fue cesárea histerectomía en un tiempo, el 45.9% con diagnóstico histopatológico placenta increta parcial y el 40.5% placenta acreta focal y parcial
Uso del subtitulaje en inglés para la adquisición de vocabularios entre los estudiantes de la licenciatura en idiomas
Authors: Arias Hugo Guillermo
Published: September 2022

Este es un estudio cuantitativo que se enfoca principalmente en las ventajas que pueden generar el uso de subtítulos en inglés para la adquisición de vocabularios, en este estudio participaron estudiantes de nivel avanzado de la licenciatura en Idiomas de la UJAT de entre 18 y 24 años que son capaces de contar sus experiencias, también se utilizó un solo instrumento de recolección de datos que fue un formulario de Google Forms. No obstante, la investigación reveló la efectividad del uso de los subtítulos en inglés, debido a que ver una serie o un video mientras escuchas el idioma meta esto hace que se desarrollen diferentes habilidades como el desarrollo auditivo y lectora, por lo cual al ver series o videos es mucho más entretenido y divertido, por lo consiguiente, los alumnos son capaces de entender el contexto cultural del idioma meta. También se demostró que para los estudiantes es mucho más llamativo aprender a través de películas o series con subtítulos en inglés porque pueden llegar a entender la trama, aunque no sepan todo el vocabulario, al mismo tiempo son capaces de adquirir nuevos vocabularios sin tener que aburrirse. Por el contrario, los materiales didácticos tradicionales pueden llegar a ser aburrido para el estudiante.
Pemanfaatan Data Hidrografi Dalam Penentuan Traffic Separation Scheme di Selat Karimata
Authors: Pinahayu Senthiko , Sobaruddin Dyan Primana , Putra Demo
Published: September 2022

Wilayah perairan laut Indonesia, sering dijadikan sebagai rute pelayaran yang efisien oleh kapal-kapal (lokal dan asing) untuk melintas Oleh karena itu, dalam memenuhi kewajibannya sebagai negara pantai, Indonesia menyelenggarakan Alur Laut Kepulauan Indonesia ALKI dimana salah satu mekanisme dalam menjaga keselamatan pelayaran dengan penataan alur pelayaran di laut yang digunakan untuk ketertiban lalu lintas kapal, keselamatan dan keamanan bernavigasi, dan perlindungan lingkungan maritim. Penelitian ini bertujuan untuk menganalisis frekuensi kapal yang melintas untuk mengurangi resiko terjadinya kecelakaan kapal di Selat Karimata dalam penetapan Traffic Separation Scheme (TSS), kemudian Mengetahui peran dari aspek hidrografi untuk mengidentifikasi bahaya navigasi dalam menunjang keselamatan pelayaran pada TSS, serta Pembuatan layout peta jalur TSS pada ALKI I di Selat Karimata dengan mengetahui batas – batas, kondisi lebar dan jarak di selat, bahaya navigasi di area TSS.

` Pendekatan penelitian yang dalam studi ini terutama didasarkan pada pemodelan penetapan batas berupa koordinat titik batas dan delineasi garis batas alur dengan dibuat rencana pembangunan alur pelayaran dengan mempertimbangkan keselamatan lalu lintas kapal-kapal yang biasa beroperasi di area tersebut. Secara teknis diperlukan survei hidrografi didahului dengan kegiatan survei hidrografi untuk mengetahui data kedalaman di sekitar perairan yang akan ditetapkan sebagai TSS. Penelitian ini menunjukkan bahwa penentuan TSS di selat Karimata adalah solusi terbaik untuk meningkatkan keselamatan pelayaran pada wilayah dengan memperhitungkan beberapa aspek antara lain aspek hidrografi, bahaya navigasi, serta data maritim.
Pengaruh Komunikasi Tatap Muka Terhadap Kesadaran Swadaya Masyarakat
Authors: Maielayuskha  , Nuryani Siti
Published: September 2022

This study aims to determine the implementation of face-to-face communication carried out by the Rural PNPM Mandiri Activity Management Team, awareness of community self-help in the development of facilities and infrastructure, as well as to describe the effect of face-to-face communication by the Rural PNPM Mandiri activity management team on the awareness of community self-help in the development of facilities and infrastructure in rural areas. Dusun Kebon Kerep, Desa Darmareja, Kecamatan Nagrak, Kabupaten Sukabumi. This study uses the associative analysis method with a rating scale measurement and analysis using a continuum line. Meanwhile, to find the relationship between variables, the Pearson product moment correlation formula and the coefficient of determination formula are used. To find out the truth test of the correlation calculation, hypothesis testing is carried out using the t-test formula. The research sample was 148 people from a total population of 2,790 people with a disproportionate stratified random sampling technique. While the object of research is the community of Desa Darmareja which consists of village officials, PNPM actors, and the local community. The results of the study showed that TPK's face-to-face communication was in a fairly good category, with an average score of 3.1. Meanwhile, the awareness of community self-help in the development of facilities and infrastructure is categorized as quite good, with an average score of 3.2. There is an effect of face-to-face communication between the management team of PNPM Mandiri Rural activities on the awareness of community self-help in the development of facilities and infrastructure with a correlation value of 0.5343 (r count) greater than 0.159 (r table). The contribution of the influence of face-to-face communication on the awareness of self-help of the community is obtained by 28.55% while the remaining 71.45% is the influence of other factors. For hypothesis testing with the t-test formula with the calculation results of 9.036, the X variable has a significant effect on the Y variable because 9.036 (t count) is greater than 1.771 (t table), so there is a positive and significant effect of face-to-face communication on self-help awareness of the community. in the construction of facilities and infrastructure in Dusun Kebon Kerep, Desa Darmareja, Kecamatan Nagrak, Kabupaten Sukabumi.
Pengaruh Tingkat Intensitas Komunikasi Orangtua terhadap Prestasi Belajar Siswa
Authors: Effendie Itsna Nurhayat , Yusup Hamdi , Gundara Aris
Published: September 2022

The implementation of education is a shared responsibility, the government, the community, and parents. However, the implementation has not yet been agreed upon by the interested parties. Parents fully trust the school with the hope that their child will get a good education. Schools and families contribute to the achievement of the quality of education, and the quality of learning depends on the condition of the students' families. Learning achievement is the result of an educational system so that the level of success is determined and influenced by elements of the system, such as input input, input input, and environmental input. The factors that influence learning achievement are external and internal factors. However, the focus of the study in this research is external factors in the form of social and non-social factors. Social factors include the family environment including how to educate, home atmosphere, community, playmates, teachers and staff at school. This study aims to determine the effect of the intensity level of parent-student communication on the level of student achievement at MTs Al-Bazari Parungkuda Sukabumi. Sampling was carried out in a systematic random sampling so that a sample of 60 people was obtained from a population of 242 people. Collecting data by observation, questionnaires, and documentation. The data obtained were analyzed by descriptive statistics, quantitative and inferential statistical analysis. The results showed that the intensity level of parent-student communication had a positive and significant effect on the level of student achievement with the results of the regression equation obtained were = 5.429 + 0.0334x and the value of Fh = 5.410 which had a value of 0.024 which was smaller than = 0 ,05. This means that the regression model obtained is significant and can be used to estimate the value of y if x is known, and the value of the determinant R2 = 0.085 which means that there is an 8.5% variation in the level of student learning achievement influenced by the intensity level of parent-student communication.
Pola Komunikasi Kepala Desa dalam Meningkatkan Kinerja Aparatur di Kantor Desa Gunung Jaya Cisaat Kabupaten Sukabumi
Authors: Susilawati Eka , Elnandar Zikri Alwy
Published: September 2022

Every individual in the organization is required to always interact with each other, be it communication from top to bottom or vice versa, as well as communication between others. That way, the flow of communication can be effective. In addition, the leadership role is very vital to direct, control, instruct and mobilize every member in the organization, so that the sustainability and goals of the organization can be fully achieved. This kind of communication climate can actually be created in all forms of organization, including government institutions, in this case the village office. Village government as a form of organization certainly cannot be separated from the communication activities carried out by the individuals in it. This study aims to determine organizational communication patterns in improving employee performance at the Gunung Jaya Village Office, organizational communication barriers, and communication strategies in improving employee performance. The research method is descriptive qualitative with data collection techniques of participation observation, observation, and interviews. The results of the research on organizational communication patterns carried out in the Gunung Jaya Village office were carried out formally and informally. Formal communication patterns include downward and upward communication patterns, as well as horizontal. The formal downward communication pattern is carried out once a month, unless there are incidental rules or instructions from the sub-district or district government. There are communication barriers due to overuse of communication tools at the wrong time, delays in conveying information about the implementation of a job or report. Meanwhile, the strategy carried out by the leadership is to improve employee performance by providing direction, input, motivation and encouragement, as well as going directly to the field to provide direct support to employees.
OS DESAFIOS DA SOCIEDADE INCLUSIVA ACERCA DA EDUCAÇÃO QUILOMBOLA
Authors: De Novais Roberto , Carvalho Júnior Adauto , Silva Irlane
Published: September 2022

O objetivo desta pesquisa é analisar os desafios que permearam a inserção da Educação Quilombola no processo de inclusão educacional, onde a educação para o povo do campo requer o reconhecimento e direito pelo acesso às terras. Com isso, os desafios pelo reconhecimento dos valores quilombolas integram a visão holística de se pensar a inclusão social. Fato é que, ao longo dos anos, o poder hegemônico que sempre se perpetuou no Brasil, através de seus privilégios, sempre dificultou a manutenção da democracia, da igualdade, de direitos e de reconhecimento. Assim, o campo, no decorrer da história do trabalho escravizado, exploratório e de destruição do espaço rural pelo avanço do agronegócio, se manteve à frente pela luta contra as amarras do neoliberalismo que enxergava o campo somente como um Território de dominação. Nessa concepção, a pesquisa possui uma abordagem qualitativa, onde foram utilizados outros trabalhos que comungam em contribuir com os desafios históricos que a sociedade brasileira possui acerca do reconhecimento inclusivo da Educação Quilombola. Contudo, a inserção da Pedagogia Histórico-Crítica, neste trabalho, se dá diante da possibilidade em analisar, com fundamentos consistentes e teóricos, os discursos idealistas que encobrem as verdadeiras contradições em nossa sociedade.

 

Palavras-chave: Educação Quilombola. Educação do Campo. Identidade Sociocultural. Inclusão Social.  Pedagogia Histórico-Crítica.
EDUCAÇÃO NO CAMPO E A PEDAGOGIA HISTÓRICO-CRÍTICA NO CONTEXTO DE PANDEMIA
Authors: Reis Chaves Ana Carla , Leite Cleuma Pereira Oliveira , Teixeira da Silva Priscila
Published: September 2022

RESUMO: O presente artigo tem o objetivo de trazer reflexões dos desafios de se implementar a PHC como pensamento pedagógico orientador da proposta curricular do município de Bom Jesus da Lapa, Bahia, em especial nas escolas do campo, em meio ao contexto de ensino durante a pandemia da COVID-19. Traz alguns apontamentos da Pedagogia Histórico-Crítica (PHC), a sua origem e seus princípios e aborda a educação no campo como direito, ainda mais diante de um contexto de pandemia. A metodologia utilizada foi à pesquisa documental e como método, uma aproximação ao materialismo histórico dialético. Percebemos que o município têm filtrado as orientações sugeridas a nível estadual e federal e vem construindo as suas próprias estratégias que dialoguem com a realidade do seu alunado. Contudo revela-se desafiador a implementação da PHC num cenário de desigualdades sociais, em especial no campo, e diante o desafio do ensino não-presencial.

 

Palavras-chave: Pedagogia Histórico-Crítica. Educação no campo. Pandemia da Covid-19.
A PEDAGOGIA FREIREANA E A EJA NA EDUCAÇÃO DOS SUJEITOS PRIVADOS DE LIBERDADE
Authors: Maciel Tailan Cristina , Rodrigues Vanessa Elisabete Raue
Published: September 2022

A presente discussão busca, através de uma investigação bibliográfica, as influências da pedagogia de Paulo Freire na Educação de Jovens e Adultos, considerando os aspectos pertinentes da Pedagogia de Freire, corroborando para a educação daqueles que estão privados de liberdade. Assim, aponta-se a educação a partir da pedagogia freireana, como um meio de reinserção social, promoção da autonomia, emancipação e reinserção social do sujeito aprisionado. Busca ainda, contemplar a educação nas prisões como uma prática para a liberdade, para além das grades, para a vida e convivência em sociedade.
O PLANO DE FORMAÇÃO
Authors: ALVES RICARDO , PIATTI CÉLIA
Published: September 2022

O artigo apresenta o plano de formação da Escola Família Agrícola Rosalvo da Rocha Rodrigues – EFAR, com a pretensão de investigar as implicações do plano de formação no processo formativo desenvolvido pela escola. Como fundamentos, o estudo estrutura-se por meio da teoria histórico crítica para concretizar a análise documental e tem por objetivo compreender as implicações do plano de formação na formação dos alunos, em  relação ao currículo, à prática docente e os riscos da fragmentação dos conhecimentos no planejamento curricular da escola. Análise que aponta a importância em refletirmos sobre a organização curricular na metodologia da alternância e o compromisso social da escola na transferência do patrimônio cultural da humanidade aos alunos, evidenciando os riscos do misticismo e do romantismo  em detrimento aos conhecimentos científicos, artísticos e filosóficos. Os resultados apontam que a fomação via pedagogia da alternância  possibilita  aos alunos a apropriação dos conhecimentos científicos acumulados pela história, mas com clareza de quem são, preservando a  sua história, os seus saberes e as suas experiências.
AS POLÍTICAS NEOLIBERAIS E SUAS IMPLICAÇÕES NO REFERENCIAL CURRICULAR DAS ESCOLAS DO CAMPO NO MUNICÍPIO DE BOM JESUS DA LAPA – BAHIA
Authors: Pereira Tihara Rodrigues , Marques Tatyanne Gomes
Published: September 2022

A pesquisa intitulada “As Políticas Neoliberais e suas Implicações no Referencial Curricular das Escolas do Campo no Município de Bom Jesus da Lapa – Bahia” tem como objetivo principal é analisar as implicações das políticas neoliberais no currículo das escolas do campo no município de Bom Jesus da Lapa – Bahia. Devido à abrangência da temática, optamos por uma abordagem qualitativa, para tanto, adotamos a pesquisa documental dos seguintes instrumentos: BNCC (2015/2016/2017) e o Referencial Curricular do Município de Bom Jesus da Lapa, a fim de compreender as suas eventuais aproximações e/ou distanciamentos. Os dados obtidos revelaram que a BNCC não pensou nas especificidades dos/as estudantes do campo. O documento apresentou propostas que não consideram a realidade de quem vive no/do campo.
HIGH-TECH INDUSTRY PERFORMANCE IMPROVEMENT
Authors: Venclovas Mindaugas
Published: September 2022

High-tech industry stands out as progressive, inovative field of industry which continuously makes investments towards R&D development. High-tech industry also has distinguishing features such as rapid use of new science findings and constant investments to new equipment, which tends to quickly depreciate and is replaced. Also, high-tech industry companies typicaly cooperate with international organisations, research centers and universities. It is not unusual for high-tech industry companies to have a lot of patents and licences. It is difficult to implement business improvement models, which tend to increase competitive advantage by reducing production cost, increasing production speed and reducing delivery time in continiously evolving high-tech industry companies. In this paper the posibility to implement business improvement models in high-tech industry is analyzed. Additionaly, employee motivation and initiative, as factors of business model implementation success is analyzed. Finally, based on the research of scientific literature and empirical data of two high-tech industry companies a model for high-tech industry performance improvement is proposed, which also introduces tools to improve employee motivation and initiative.
Molecular Clouds as Gravitational Instabilities in Rotating Disks: A Modified Stability Criterion
Authors: Meidt Sharon E.
Published: September 2022

Molecular gas disks are generally Toomre stable (Q

T
> 1) and yet clearly gravitationally unstable to structure formation as evidenced by the existence of molecular clouds and ongoing star formation. This paper adopts a 3D perspective to obtain a general picture of instabilities in flattened rotating disks, using the 3D dispersion relation to describe how disks evolve when perturbed over their vertical extents. By explicitly adding a vertical perturbation to an unperturbed equilibrium disk, stability is shown to vary with height above the midplane. Near z = 0, where the equilibrium density is roughly constant, instability takes on a Jeans-like quality, occurring on scales larger than the Jeans length and subject to a threshold Q

M
= κ
2/(4π
G
ρ) = 1 or roughly Q

T
≈ 2. Far from the midplane, on the other hand, stability is pervasive, and the threshold for the total disk (out to z = ±∞) to be stabilized is lowered to Q

T
= 1 as a consequence. In this new framework, gas disks are able to fragment through partial 3D instability even where total 2D instability is suppressed. The growth rates of the fragments formed via 3D instability are comparable to, or faster than, Toomre instabilities. The rich structure in molecular disks on the scale of tens of parsecs can thus be viewed as a natural consequence of their 3D nature and their exposure to a variety of vertical perturbations acting on roughly a disk scale height, i.e., due to their situation within the more extended galaxy potential, participation in the disk-halo flow, and exposure to star formation feedback.
Total Solar Irradiance during the Last Five Centuries
Authors: Penza Valentina , Berrilli Francesco , Bertello Luca , Cantoresi Matteo , Criscuoli Serena , Giobbi Piermarco
Published: September 2022

The total solar irradiance (TSI) varies on timescales of minutes to centuries. On short timescales it varies due to the superposition of intensity fluctuations produced by turbulent convection and acoustic oscillations. On longer timescales, it changes due to photospheric magnetic activity, mainly because of the facular brightenings and dimmings caused by sunspots. While modern TSI variations have been monitored from space since the 1970s, TSI variations over much longer periods can only be estimated either using historical observations of magnetic features, possibly supported by flux transport models, or from the measurements of the cosmogenic isotope (e.g., 14C or 10Be) concentrations in tree rings and ice cores. The reconstruction of the TSI in the last few centuries, particularly in the 17th/18th centuries during the Maunder minimum, is of primary importance for studying climatic effects. To separate the temporal components of the irradiance variations, specifically the magnetic cycle from secular variability, we decomposed the signals associated with historical observations of magnetic features and the solar modulation potential Φ by applying an empirical mode decomposition algorithm. Thus, the reconstruction is empirical and does not require any feature contrast or field transport model. The assessed difference between the mean value during the Maunder minimum and the present value is ≃2.5 W m−2. Moreover it shows, in the first half of the last century, a growth of ≃1.5 W m−2, which stops around the middle of the century to remain constant for the next 50 years, apart from the modulation due to the solar cycle.
The Relation between the Optical Fe ii Emission and the Dimensionless Accretion Rate for Active Galactic Nuclei
Authors: Liu Yan-Sheng , Bian Wei-Hao
Published: September 2022

It was suggested that the prominent feature of the optical Fe ii emission has a connection with the accretion process in active galactic nuclei (AGN). For a large sample of 4037 quasars (z < 0.8) with measured H
β line dispersion (σ
Hβ
) selected from the Sloan Digital Sky Survey (SDSS) and 120 compiled reverberation-mapped (RM) AGN, we use σ
Hβ
and the extended R
BLR(Hβ)−L
5100 relation to calculate supermassive black holes masses (M
BH) from the single-epoch spectra for the SDSS subsample, and σ
Hβ
from the mean spectra for the RM subsample. We find a strong correlation between the relative optical Fe ii strength R
Fe and the dimensionless accretion rate

M

̇

for the SDSS subsample with the Spearman correlation coefficient r

s
of 0.727, which is consistent with that derived from the mean spectra for the RM subsample. The magnitude of velocity shift of the optical Fe ii emission has a strong anticorrelation with

M

̇

, whenever there is inflow or outflow. These strong correlations show that the optical Fe ii emission has an intimate connection with the accretion process. Assuming that the difference of M
BH is due to the variable virial factor f for adopting FWHM
H
β
as the velocity tracer, we find that there is a relation between f and FWHM
H
β
,

log
f
=
−
(
0.41
±
0.002
)

logFWHM

H
β

+
(
1.719
±
0.009
)

for the single-epoch spectrum. The relation between

log
f

and σ
Hβ
is not too strong, suggesting that σ
Hβ
does not seem to depend much on the broad-line region inclination and a constant σ-based f is suitable for σ
Hβ
as the velocity tracer.
Sigmoid Formation through Slippage of a Single J-shaped Coronal Loop
Authors: Pan Hanya , Gou Tingyu , Liu Rui
Published: September 2022

A well-known precursor of an imminent solar eruption is the appearance of a hot S-shaped loop, also known as a sigmoid, in an active region (AR). Classically, the formation of such an S-shaped loop is envisaged to be implemented by magnetic reconnection of two oppositely oriented J-shaped loops. However, the details of reconnection are elusive due to weak emission and subtle evolution during the preeruptive phase. In this paper, we investigate how a single J-shaped loop transforms into an S-shaped one through the slippage of one of its footpoints in NOAA AR 11719 on 2013 April 11. During an interval of about 16 minutes, the J-shaped loop slips through a low-corona region of strong electric current density in a bursty fashion, reaching a peak apparent speed of the slipping footpoint as fast as 1000 km s−1 and over. The enhancement of electric current density, as suggested by nonlinear force-free field modeling, indicates that the “nonidealness” of coronal plasma becomes locally important, which may facilitate magnetic reconnection. The loop segment undergoing slipping motions is heated; meanwhile, above the fixed footpoint coronal emission dims due to a combination effect of the lengthening and heating of the loop; the latter of which is manifested in the temporal variation of dimming slope and of emission measure. These features together support an asymmetric scenario of sigmoid formation through slipping reconnection of a single J-shaped loop, which differs from the standard tether-cutting scenario involving a double J-shaped loop system.