bluuebunny/crossref_metadata_2025 huggingface dataset:
ЗАСТОСУВАННЯ ІОННО-ПЛАЗМОВИХ МЕТОДІВ ДЛЯ ОТРИМАННЯ ТОНКОПЛІВКОВИХ ПАЛИВНИХ ЕЛЕМЕНТІВ
Authors: Сагалович О. В. , Сагалович В. В. , Попов В. В. , Дуднік С. Ф. , Кононихін О. В.
Published: March 2021

New demands on aircraft operating systems, along with ever-increasing demands for reduced fuel consumption, pollutant emissions and noise, are driving the search for new cleaner technologies in which fuel cells show great potential. The work demonstrates the achieved level of development of thin-film composite materials using ion-plasma and plasma-chemical methods at JSC FED, which allows creating the prerequisites for changing properties in relation to traditional materials by 2…3 and more orders of magnitude, reducing the operating temperature to 400...600 °C. This makes it possible to develop fundamentally new designs of thin-film fuel cells (10-20 times less thick than the tubular version) and serial technologies for their manufacture in the following directions: application of thin-film compositions to the developed structure, taking into account technological limitations for different deposition methods; obtaining composite materials, which consist of layers: gas-tight electrolyte and electrode layers with thin-film current-collecting contacts; ensuring the separation of gas mixtures with a ceramic electrolyte layer with a thickness of < 50...20 microns; minimizing the thickness of the electrolyte film and other functional layers of the fuel cell; increasing the adhesion strength of layers and corrosion resistance of current-collecting contacts and electrode layers in working environments to ensure the operability of the structure throughout the entire operation process.
АНАЛІЗ ОСОБЛИВОСТЕЙ ПРОЕКТУВАННЯ БЕЗПІЛОТНОГО ТРАНСПОРТНОГО ЛІТАКА ЩОДО ПАЛИВНОЇ ЕФЕКТИВНОСТІ
Authors: Долгих В. С.
Published: March 2021

The unmanned aircraft systems application is in the initial stage, which is characterized by a significant level of unmanned aircraft development and its elements, and by the lack of the basis of unmanned aircraft application in real technological processes. Resolution of this contradiction requires the solution of diverse problems of conceptual, technical, technological, methodological, organizational and legal – normative character.In general, today the unmanned aircraft systems application in the civil field is practically limited by particular cases of local applications in favor of the solution of current production or economic problems, mainly by the experimental procedure. Therefore, the market growth of the unmanned aircraft systems is expected providing the capability of a number of technical and administrative barriers that restrict the use of unmanned aircraft systems in the national airspace. It should also be noted the increasing prevalence of unmanned systems in general transport.This study was motivated by the globally increasing interest in unmanned cargo drones. It was focused particularly on cargo drones based on existing conventional general aviation airplanes and it should be regarded as a preliminary step towards the complex assessment of unmanned cargo aircraft transport systems. The aim was to estimate the fuel efficiency of such drones and to outline the optimums of some of their key design characteristics. A sample of 26 very light and light aircraft, and motorgliders was examined. The data was taken from open sources. The results outline that for best fuel economy the cargo drone should be a composite structure, piston engine airplane with wing aspect ratio of 10 to 12. Fuel efficiency estimation at distances of 500 to 2500 km shows that such cargo drones would be competitive with large piloted commercial cargo airplanes as well as with the road transport.
ГАЛАКТИЧНІ СЛІДИ РЕГЕНЕРАЦІЇ ВОДНЮ
Authors: Narozhnyi A. N.
Published: March 2021

The article discusses direct consequences of hydrogen regeneration mechanisms observed in galaxies when galactic nuclei are active. Previously, these mechanisms have been presented by describing the work of structures that form quasar jets. Based on evaluation of the findings obtained through observation of our Galaxy and intergalactic space, the present article gives direct evidence that the aforementioned processes exist. The adduced evidence is astronomical objects that have come into existence as a result of hydrogen ejected by jets together with plasma and dust. In terms of the Milky Way galaxy, this fact is emphasised by direct astronomical observation of its elements. There are also evidential findings among intergalactic astronomy observational data, whose origin is explained comprehensively in terms of the present approach. However, the provided findings are traditionally regarded from the prevailing Big Bang theory perspective. For instance, according to this theory, huge intergalactic hydrogen clouds are interpreted as residual hydrogen left from the primary explosion. The Milky Way observation results include data indicative of alleged contribution of the given processes to formation of some of its structural elements, including a number of satellite galaxies. There is a criterion whereby it is possible to distinguish galactic gas clouds and star clusters formed of galactic matter itself. This matter containing a great deal of regenerated hydrogen was ejected from a galactic nucleus during the period of its activity. Based on the example of a spiral galaxy, it is assumed that active galactic nuclei are possibly involved in the formation of its morphology. It is concluded that, when being active, a central supermassive object performs its primary function, which is to process waste produced during the life of stars. This process is the final link in the galactic life cycle, which consists of two reciprocal processes. The first one is about hydrogen burning continuously in stars, while the second one is about episodic activity of the galactic nucleus, which results in star waste that contributes to regeneration of hydrogen needed to maintain direct processes within the galaxy. The two specified processes are associated with one more process: stellar electromagnetic radiation energy extended beyond the galaxy partially returns to it. The process is completed due to a fragment of dark matter. The overarching conclusion can be drawn: as a functional system, the Universe is well-organised and self-sufficient to last forever.
Procesos de inclusión en la educación superior en Colombia, México y Chile.
Authors: Correa Jaramillo Rodney , Vidal Yepes Laura Andrea , Marmolejo Sarmiento Efraín Arnoldo , Sánchez Moncayo Claudia Nayibe
Published: March 2021

La educación inclusiva viene naturalizando su discurso al permear la esfera social e institucional, convirtiéndose en la razón por la cual las acciones educativas sean resignificadas en el marco de la flexibilidad. Esto genera transformaciones sociales que son cada vez más vertiginosas, permitiendo así que el contexto político extienda su plataforma al incorporar la cultura de la diversidad, lo que visibiliza la población vulnerable. Esta pluralidad en Latinoamérica ha generado reformas educativas, desde el diseño universal del aprendizaje hasta el desarrollo de los proyectos educativos institucionales (PEI)2. A esta importante tarea se sumaron países como Chile, México y Colombia, quienes han implementado dentro de su marco político el concepto de educación inclusiva, como un primer paso para impulsar el avance y la mejora de todas las personas sin ningún tipo de discriminación. La exhaustiva revisión bibliográfica dejó ver cómo la inclusión en la educación superior, en Chile, México y Colombia, se fundamenta en la normatividad legal, que exige a las instituciones de educación superior contar con herramientas que permitan la enseñanza a toda la población.
Con el deseo en la boca : sexo, poder y subjetividad en hombres que tienen sexo con hombres.
Authors: Segura Gutiérrez José Miguel
Published: March 2021

Este artículo aborda la forma en que el sexo oral como práctica sexual, configura el establecimiento de subjetividades y relaciones estratégicas de poder, entre hombres que tienen sexo con hombres (HSH), además de discutir el enganche que el dispositivo de sexualidad con sus cuerpos y placeres tiene para con el alcance de una vida buena por parte de tales sujetos. Concluye que este tipo de práctica sexual, aunque no es una marca distintiva en la dinámica sexual ejecutada por dicho colectivo sociosexual, sí podría configurarse como factor de riesgo para la salud de quienes la practican, cuando no se consideran aspectos de higiene, cuidado de sí mismo y del otro.
Expression of Osteopontin and Cyclooxygenase-2 in relation to cellular proliferation, in non-tumor colonic mucosa, colonic adenomas and colon adenocarcinoma.
Authors: Benedetti Padron Inés , Lecompte Osorio Paola , Barrios Garcia Lía
Published: March 2021

Introduction: the participation of Cyclooxygenase-2 (COX-2) and Osteopontin has been postulated in the development of colon cancer, which play an important role in the progression and could be biomarkers for its prognosis, but their role remains controversial. Objective: to determine and to compare the expression of Osteopontin and COX-2 in non-tumor colonic mucosa, colonic adenomas and colon adenocarcinoma, in relation to the cell proliferation index. Methods: the immunohistochemical expression of COX-2, Osteopontin and Ki-67 in formalin fixed paraffin embedded tissue of non-tumor colonic mucosa, colonic adenomas and colon adenocarcinoma were determined and compared. Results: were included 65 cases: 19 of non-tumor colonic mucosa, 13 colonic adenomas and 33 colon adenocarcinomas. There was increased expression of Ki-67 in dysplastic and tumor cells. There was positive expression for COX-2 in adenomas (30.7%) and adenocarcinomas (27.3%), without significant difference between nontumor colonic mucosa, adenomas and adenocarcinoma (p = 0.888). Osteopontin showed more frequent positivity in adenocarcinomas (72.7%) and adenomas (84.6%) than in non-tumor mucosa (10.5%), (p = <0.0001), without significant differences in its expression between subtypes and grades of adenoma dysplasia, nor between grades of differentiation, extension and proliferation of adenocarcinomas. There was a significant association between Osteopontin expression and the cell proliferation index. No association was observed between the expression of COX-2 and Osteopontin (p = 0.96). Conclusions: Osteopontin overexpression in colon adenocarcinoma and adenomas in comparison with non-tumor colonic mucosa, and its significant relationship with the cell proliferation index, constitutes additional evidence of its possible participation in the colonic carcinogenesis process.
Pertinencia de la remisión de pacientes con adenopatías a la consulta de hemato-oncología pediátrica.
Authors: Gerena Liliam Gisela , Guerrero María Fernanda , Penagos Johanna Catherine , Rodríguez Olga Adriana , Linares Adriana
Published: March 2021

Introducción: las adenopatías se definen como anormalidades en tamaño y consistencia de los ganglios linfáticos y son una causa frecuente de consulta en el rango poblacional de 3 a 5 años. Su diagnóstico depende del historial médico, sus características, la presencia de síntomas constitucionales y los estudios de extensión. Objetivo: conocer la pertinencia de la remisión de niños con adenopatías al servicio de hemato-oncología pediátrica, describiendo las características clínicas y paraclínicas de los casos, además de los predictores de malignidad. Métodos: se realizó una revisión y caracterización de historias clínicas de pacientes remitidos por primera vez a consulta de hemato-oncología pediátrica por presentar adenopatías, se determinó la asociación estadística de pertinencia de la remisión según criterios establecidos en la literatura. Resultados: se evaluaron las historias clínicas de 136 pacientes remitidos a consulta de hemato-oncología pediátrica por presentar adenopatías, el tiempo de evolución fue mayor a ocho semanas en el 81,62% de los casos. En 98 pacientes (72,06%) las adenopatías correspondieron a adenomegalias reactivas/benignas y sólo en dos casos correspondieron a neoplasias (1,47%). La asimetría fue el criterio con significancia estadística OR 3,45 (IC 1,51-7,86) relacionado con pertinencia de la remisión, adicional a los descritos de la literatura. Conclusiones: deben considerarse para remisión pertinente al servicio de hematooncología los pacientes con adenopatías en localizaciones patológicas, de tamaño mayor a 2 cms, asimétricas, asociadas a síntomas constitucionales, con citopenia en el hemograma y ecografía de la lesión sospechosa que describa el hilio graso.
Carcinoma escamocelular de vejiga : reporte de caso y revisión de la literatura.
Authors: Murillo Salas María , Pérez Montiel Camilo Andrés , Redondo De Oro Katherine , Redondo Bermúdez César
Published: March 2021

Introducción: el cáncer de vejiga es un problema de salud importante a nivel mundial, es el noveno cáncer más común en hombres y mujeres y representa una causa considerable de morbimortalidad por esta enfermedad. El carcinoma escamocelular es una variedad histológica excepcional, clasificado dentro de los cánceres de vejiga no uroteliales, representando menos del 5 % de todos los tumores de vejiga. Se presenta un caso de carcinoma escamocelular mal diferenciado primario de vejiga en un paciente con antecedente de nefrostomía bilateral y urolitiasis. Caso clínico: paciente masculino de 53 años de edad, con antecedente de nefrostomía bilateral y lesión ocupante de espacio a nivel intravesical sin reporte de patología, consulta con cuadro clínico de 6 horas de evolución caracterizado por disfunción de nefrostomía izquierda asociado a dolor en hipocondrio y fosa iliaca izquierda. Se realiza ecografía de vías urinarias que reporta lesión ocupante de espacio sólida, heterogénea con calcificaciones en su interior que ocupa la totalidad de la topografía de la vejiga urinaria, con efecto de masa sobre las estructuras vecinas. Posteriormente, se realiza resección transuretral de lesión vesical, el estudio histopatológico reporta un carcinoma invasor mal diferenciado, confirmado por estudios de inmunohistoquímica como carcinoma escamocelular mal diferenciado. Conclusiones: el carcinoma escamocelular de vejiga es una neoplasia poco frecuente, tiende a ser localmente avanzada en el momento del diagnóstico y es relativamente resistente a los regímenes de quimioterapia utilizados para el carcinoma urotelial.
La migración y su relación con el emprendimiento : una revisión sistemática.
Authors: Gómez Morales Juranis Dilais , Medina Guzmán Gilberto , Maza Ávila Francisco Javier
Published: March 2021

Este artículo tiene como objetivo establecer la relación existente entre la migración y el emprendimiento. Para cumplir con esto, se realizó una revisión sistemática de estudios realizados en los últimos años, utilizando las bases de datos EBSCOhost, ScienceDirect y Scopus. Se tuvieron en cuenta criterios de inclusión y exclusión en el proceso de selección de los artículos, por lo que finalmente, solo 13 de ellos se considerados adecuados para analizar a profundidad los principales aspectos que impulsan a los migrantes a iniciar proyectos de emprendimiento. A partir de la revisión, se logró evidenciar que muchos migrantes recurren al emprendimiento como alternativa para lograr un desarrollo personal, ante la falta de oportunidades en los países receptores, impulsados principalmente por la falta de empleo. Además, los aspectos étnicos o culturales, el nivel de educación o capital humano y la actitud frente al riesgo, también son factores influyentes en la decisión de recurrir al emprendimiento y pueden determinar el éxito de este.
Hábitos alimenticios y sus efectos en la salud de los estudiantes de la facultad de ciencias económicas de la Universidad de Cartagena.
Authors: Arroyo Pérez Astrid Carolina , Gutiérrez Puerta Dayana , Narváez Castillo Alexandra , Ramos Lozano Paula Andrea , Maza Ávila Francisco Javier
Published: March 2021

Este artículo tiene como objetivo analizar los hábitos alimenticios de los estudiantes de la Facultad de Ciencias Económicas de la Universidad de Cartagena, así como la percepción que tienen sobre la incidencia de dichos hábitos en su salud, como base para la formulación de recomendaciones que contribuyan a su mejora. Para indagar los hábitos alimenticios y las percepciones de incidencia en la salud, se aplicó un cuestionario, mediante la técnica encuesta, a una muestra piloto de 100 estudiantes de la institución; asimismo, se levantó la información de los establecimientos que ofertan alimentos tanto al interior de la sede Piedra de Bolívar, como en su área de influencia. Los resultados arrojaron que la mayor parte de los estudiantes adquieren los alimentos al interior de la universidad. De igual forma, consideran que los hábitos alimenticios si están relacionados directamente con su salud, en especial, con enfermedades asociadas a una mala alimentación. En cuanto a la oferta, se evidenció que la mayoría de los establecimientos no ofertan alimentos saludables, mientras que aquellos pocos que lo hacen, presentan una baja demanda; asimismo, entre los factores que definen la elección de los alimentos por parte de los estudiantes, se encuentran el precio y el sabor. Finalmente, se proporcionaron recomendaciones para mejorar los hábitos alimenticios y la salud, entre éstas, variar los alimentos ingeridos semanalmente, no depender solo de los ofertados en la institución y recurrir a otras alternativas, tales como llevar alimentos preparados que aporten más contenido nutricional a su dieta diaria.
Análisis del proceso de enseñanza y de aprendizaje de los contenidos de la asignatura de Geografía en nivel primaria en México
Authors: Bernal Díaz Marco Antonio , Fonseca Polanco Diana Carolina , Zaldívar Colado Aníbal
Published: March 2021

Esta investigación tiene como objetivo analizar el estudio de la asignatura de Geografía en nivel primaria, donde el niño inicia la comprensión de la Tierra, su superficie, los paisajes, así como lugares y regiones por medio de exploración documental. Para esta pesquisa se emplearon técnicas de investigación necesarias para la recolección de datos como el análisis documental, observación dentro del contexto del aula, encuesta y entrevista. Los datos fueron analizados cualitativa y cuantitativamente, para conocer características, estrategias y los recursos utilizados por los alumnos en el aula, así como la percepción docente en su quehacer como agente del conocimiento. Entre los resultados más relevantes se encontró que los docentes utilizan principalmente estrategias tradicionales de enseñanza, como el libro de texto y el cuaderno, y los estudiantes no se sienten motivados con estos medios, además de preferir aprender con el uso de nuevas tecnologías. La información obtenida de esta investigación servirá en un futuro como base para la etapa de análisis del desarrollo de un software que sirva como estrategia tecnológica en la asignatura de Geografía para fortalecer las competencias de los discentes y docentes.
Bariatrik Cerrahi Geçiren Obez Hastaların Tedavi Sürecinin Retrospektif Analizi
Authors: Ongan Dilek , Yılmaz Hüsnü , Fıçı Mesude , Ongan Emre , Çalık Gamze , Nart Ahmet
Published: March 2021

Amaç: Bariatrik cerrahi geçiren obez hastaların tedavi sürecinin; biyokimyasal, antropometrik ve sağlıkla ilişkili özellikler bakımından retrospektif olarak incelenmesi amaçlanmıştır.

Bireyler ve Yöntem: Retrospektif incelemeye 18 yaş ve üzeri 145 hasta alınmıştır. Sosyo-demografik özellikler, sağlık durumuna ve komplikasyonlara ilişkin bulgular hasta dosyalarından kaydedilmiştir. Antropometrik ölçümler, hasta takipleri sırasında diyetisyen tarafından kaydedilmiş olan verilerden elde edilmiştir. Post-operatif 12. ayda hastaların fazla vücut ağırlık kaybı oranı (%FKKO) hesaplanmıştır. Pre-operatif ve post-operatif biyokimyasal bulgular, hasta dosyalarından alınmıştır.

Bulgular: Hastalara bariatrik cerrahi yöntemi olarak laparoskopik sleeve gastrektomi (%99.8) uygulanmıştır. Hastaların yaş ortalaması 43.1±10.7 yıl olup, %77.9’u kadındır. Büyük çoğunluğunun (%86.9) en az bir hastalığa sahip olduğu, en yaygın görülen hastalığın diabetes mellitus (%41.3) olduğu belirlenmiştir. Post-operatif dönemlerde bulantı, kusma, konstipasyon en sık gözlenen komplikasyonlardır. Hastaların FKKO %67.7±16.5’tir. Post-operatif dönemde en fazla intolerans gelişen besin grubu, süt ve ürünleridir. Post-operatif dönemde hastaların açlık kan glukozu, trigliserit, total kolesterol, B12 vitamini düzeyleri azalmıştır.

Sonuç: Bariatrik cerrahi morbid obezite tedavisinde etkili bir yöntemdir ve FKKO’na göre başarı sağlanmıştır. Ancak, cerrahi sonrası görülen komplikasyonların azaltılması ve besin ögesi yetersizliklerinin önlenebilmesi için, hasta ile hekim ve diyetisyen arasındaki izlem görüşmelerinin düzenli yürütülmesi önerilmiştir.
Analisa Perubahan Garis Pantai di Wilayah Pantai Antara Muara Batang Air Dingin dan Muara Batang Anai Provinsi Sumatera Barat
Authors: Setiawan Boy , Junaidi Junaidi , Junaidi Ahmad
Published: March 2021

Garis pantai antara Muara Batang Air Dingin dengan Muara Batang Anai terletak sebagian di kota padang dan sebagian di Kabupaten Padang Pariaman, Propinsi Sumatera Barat. Sebelum tahun 2012 terjadi abrasi, hempasan ombak pada saat terjadi badai, dapat mencapai rumah-rumah penduduk. Pada tahun 2012, Balai Wilayah Sungai Sumatera V (BWSS V) dan Dinas Pengelolaan Sumber Daya Air (PSDA) Propinsi Sumatera Barat membangun groin untuk menanggulangi abrasi. Untuk mengetahui dampak dibangun groin ini, penulis tertarik untuk meneliti dan menganalisa perubahan garis pantai di wilayah pantai antara muara Batang Air Dingin dan muara Batang Anai. Tujuan utama dari penelitian ini adalah mengetahui posisi akresi dan abrasi sepanjang garis pantai di tempat penelitian serta membuat simulasi arah gelombang  sehingga dapat diketahui arah laju partikel (sedimen) akibat adanya bangunan  pengaman pantai. Untuk membuat simulasi perubahan garis pantai, penulis menggunakan software GENESIS. Dari penelitian ini diketahui bahwa pada lokasi yang telah dibangun groin, terjadi akresi di sepanjang lokasi pantai tempat penelitian. Pertambahan garis pantai mencapai 25 m dan laju akresi mencapai 4,2 meter/tahun. Pada daerah yang belum dibangun groin, terjadi abrasi akibat pengaruh berkurangnya pasokan sedimen karena telah ditangkap oleh groin yang berada pada sisi kirinya. Laju abrasi pertahun adalah 1,2 m/thn yang berada di lokasi pasie jambak Kota Padang. Berdasarkan simulasi Genesis 10 tahun kedepan dari tahun 2017.  Terjadi pergerakan sedimen yang bergerak dari kiri kekanan saat pengamat menghadap kelaut. Pemasangan groin yang efektif dalam memajukan garis pantai, namun berdampak negatif pada daerah yang belum dibangun groin seperti mundurnya garis pantai akibat berkurangnya pasokan sedimen.
Pemanfaatan Panas Sisa Pembakaran Bata Merah di Daerah Setiti Kab. Muaro Jambi
Authors: Myson Myson , Yusiana Venny
Published: March 2021

Pada proses pembakaran bata merah di desa Setiti Kecamatan Jaluko Kabupaten Muaro Jambi terdapat suhu yang akan dilepaskan ke lingkungan yang cukup tinggi yaitu 300 0C. Panas yang tinggi ini dapat dimanfaatkan untuk proses pengeringan bata merah mentah yang masih basah dengan dibuatkan saluran pengering dengan menekan udara dingin menuju tungku pembakaran sebanyak 2,586 kg/dt dengan asumsi efisiensi 80% dan kecepatan aliran udara dingin 2 m/dt yang mana udara panas yang akan dilepas ke lingkungan nantinya adalah sebesar 70 0C. Proses ini dapat terjadi dengan menahan temperatur tersebut selama 10,16 jam.
Potensi Penggunaan Abu Terbang Cangkang Sawit sebagai Adsorben Logam Arsen dari Air Limbah Tambang
Authors: Rainiyati Rainiyati , Riduan Ahmad , Heraningsih Sarah Fiebrina
Published: March 2021

Arsenic is a dangerous compound that accumulates in nature as a result of anthropogenic activities, one of which is gold mining. Effluent originating from the remaining mining is simply abandoned even though it contains Arsenic which is above the threshold set by the Government of the Republic of Indonesia. The purpose of this study was to analyze the ability of palm shell fly ash to remove arsenic in the residual gold mining effluent. The technology applied in this study was absorption by direct mixing followed by settling and filtering. The maximum arsenic removal efficiency achieved in this study was valued at 81.98%. The longer the contact time between the palm shell fly ash and the waste sample, the less the amount of Arsenic in the waste water will be. The results of this study indicate that the method of removing arsenic from wastewater using palm shell fly ash is very effective, easy to apply and cheap in terms of the cost required.
Optimasi Produksi Biogas Dari Campuran Kotoran Sapi Dan Rumput Gajah (Pennisetum purpureum)
Authors: Nikolas Nanda Saputra , Saragih G M , Hadrah Hadrah
Published: March 2021

This study aims to determine the optimization of biogas production from a mixture of cow dung and elephant grass (Pennisetum Purpureum). Cow manure and fresh elephant grass are taken directly in Teluk Singkawang Village, Sumay District, Tebo Regency, Jambi Province. This research method is the experimental method. There are 4 variations of the mixture in the digester, namely P1 (RG: 25%, KS: 50%, water: 25%), P2 (RG: 50%, KS: 25%, water: 25%), P3 (KS: 75 % and Water: 25%), P4 (RG: 75%, and Water: 25the mixture was put into a digester from a plastic gallon with a volume of 18 liters and tightly closed. The study was conducted for 30 days. The parameters observed in this study included biogas pressure, flame test, daily temperature and initial and final pH. The results showed that the maximum pressure in all digesters I-V were as follows: 705.6 (N/m)2, 689 (N/m)2, 823.2 (N/m2), and in digester IV there was no gas pressure produced. The flame test conducted showed that there was a flame on the digester I-III (with the addition of cow dung) with the flame color, yellowish blue, reddish blue, and blue. Meanwhile, Digester IV (without the addition of cow dung) does not produce a flame. while the initial pH values of all variations were in the normal range, namely 7, 8, 7, 8 for P1, P2, P3 and P4 respectively; while the final pH was 7, 6, 7, 4, respectively. The average daily temperature was almost the same for all variations, namely 27.2 oC, 28.26 oC, 27.74 oC, and 27.94 oC.
Pengembangan Media Belajar Audiovisual Untuk Pembelajaran Memperbaiki Motor Listrik di SMK Negeri 1 Sarolangun
Authors: Khomsun Imam
Published: March 2021

Learning process for repairing electricity motor competency at skill competency of Installation Electric Power Technique at SMK Negeri 1 Sarolangun has not been run effectively. In fact, learning material in repairing electricity motor just used modul as teaching materi and media learning. While, to get the competency thad needed, learning process should be supported by leaning tool well. For answer the problem above, teacher as a fasilitator in achievment of students competency is demanded to creative in learning management. One of them is by finding alternative solution that is by develop audiovisual media for learning of repairing electricity motor that can give solution in lerning process. Development of this media aim to product efective media in learning material of repairing electricity motor at SMK Negeri 1 Sarolangun. Development model that chosen is based on Borg and Gall model that adapted lerning design Dick and Carey model. Development process is done by 5 main steps: (1) Doing analysis, (2) Design pre product, (3) Validation and revision, (4) Try out at small scale field and, (5) Try out big group field. Based on the try out of audiovisual media for learning of repairing electricity motor at the SMK, responden give suggestion that the media can be benefit in learning process at school. The reason is that media can give information about the jobs steps clearly at matery of repairing electricity motor so give ease in learning. This ease in proved by the result of try out at big group that give conclution, there is increasingly at the result of study. There by, the media can comprehand learning material fast.
Pengembangan Majalah Biologi Materi Keselamatan Kerja di Laboratorium Biologi untuk Siswa Kelas XI Pertanian SMK Negeri 4 Muaro Jambi
Authors: Reflihadi Reflihadi
Published: March 2021

This study aims to provide solutions for the problems of understanding in work safety at biology laboratory material by developing learning resources in the form of biology magazines work safety material in biology laboratory for 11th Proffesional High School On 4 Muaro Jambi. The type of this research is development research with ADDIE model. This research was conducted at kelas XI Pertanian SMK Negeri 4 Muaro Jambi. The research data was taken on January 2nd 2019 and obtained by giving a questionnaire to the media expert validator, material expert validator, a small group consisting of 6 students, a large group consisting of 19 students, a teacher of biological studies and a laboratory assistant. The results of the study show that the product is feasible to be used as learning resources. This is indicated by the results of the media validation process and the material carried out 3 times continues to increase. The percentage of stage I media validation was 60% and material validation was 61.25% in the 'not good' category, then increase in the second stage, media validation was 75% and material validation was 66.25% in the 'good' category and finally in stage III media validation was 95% and material validation was 88.75% in the 'very good' category. The results of the assessment by biology teachers with percentage of 97.5% in the 'very good' category. The results of the assessment by a laboratory assistant with percentage of 92.5% in the 'very good' category. Student trial in small groups get a percentage of 79.1% in the 'Good' category and the trials of students in large groups get a percentage of 84.8% in the 'very good' category.
Penerapan Model Problem Based Instruction (PBI) dengan Media Kartu Pintar untuk Meningkatkan Kualitas Pembelajaran IPA pada Peserta Didik Kelas IV SDN 211/IX Mendalo Darat
Authors: Rosinah Rosinah
Published: March 2021

The background of the problem in science learning, teachers do not involve students in investigations, students are less trained in developing work (products). The concepts that are mastered by students are only given rote by the teacher, students are not taught through a problem-oriented discovery process in everyday life. Based on this problem, the most appropriate solution is to implement a smart card media with a PBI model. In particular, it is improving teacher skills, student activities, and learning outcomes in science learning for class IV SDN 211 / IX Mendalo Darat. This research is a classroom action research, and uses a Problem Based Instruction model with smart card media in three cycles. Consists of two meetings and four stages in each, namely planning, implementing, observing, and reflecting. The results showed: (1) the skills of the teacher in obtaining an average score of the two meetings in cycle 1 were 21.5 with sufficient criteria; cycle 2 obtained a score of 27 with good criteria. The score obtained in cycle 3 is 30.5 and is included in the good category. (2) The activity of students obtaining an average score from the two meetings in cycle 1 was 21.85 with sufficient criteria; In cycle 2, a score of 24.35 was obtained with good criteria. For cycle 3, obtained a score of 31.2 good categories. (3) The learning outcomes of students obtaining an average percentage of classical completeness from the two meetings in cycle 1 was 55.41%. Obtained the percentage of classical completeness in cycle 2 is 68%. The percentage of classical completeness in cycle 3 was 81%. The indicators of success that have been achieved in the results of this study indicate that this research is declared successful. Through the Problem Based Instruction (PBI) model with smart card media, the conclusions of this study can improve teacher skills, student activities and learning outcomes of grade IV SDN211 / IX Mendalo Land. It is recommended for teachers that before starting learning with the Problem Based Instruction model with smart card media the teacher needs careful preparation
Rancang Bangun Buka Tutup Pintu Otomatis dengan Menggunakan Arduno UNO / MEGA 2560
Authors: Rahman Fadil , Myson Myson , Yandra Fadli Eka
Published: March 2021

The Arduino Board has been widely used as a prototyping device for both educational, research and commercial purposes. The ability of Arduino boards to be connected with electronic devices or gadgets such as Android operating system devices is getting more attention among researchers. By utilizing the various capabilities possessed by most Android operating system devices on the market today, the Arduino board will certainly have extraordinary intelligence. Some of the ways that Android devices can communicate with Arduino are via a Bluetooth shield, Wi-Fi shield, and also by serial communication. The idea that emerged was to utilize the ATMega328 microcontroller serial communication capability on the Arduino board. Serial data sent from an Android device is passed through an audio jack cable then connected to the Rx port on the Arduino board. In this Final Project will be designed and realized serial communication between the Android and Arduino platforms through audio channels with text input with the aim that Android can send text data through audio channels with audio cables. In testing the data speed utilizing the Arduino serial monitor it was found that the optimal speed was 19200bps. Whereas the maximum speed is 38400bps which can still be used for uniform serial data communication with an error of less than 5%. However, the maximum speed cannot be used for diverse data because the data error is more than 30%. The data cannot be read at speeds of 14400bps, 28800bps, speeds under 300bps and speeds above 57600bps.
Tampilan Nama Hari Berbasis Mikrokontroler Arduino Uno Menggunakan Saklar Tekan pada Project Board
Authors: Dewi Rozlinda , Rozandi Dimas Agung
Published: March 2021

Arduino Uno is a variant of Arduino microcontroller board products. Arduino Uno uses AVR Atmega 328 microcontroller. With various advantages, In appearance (Display) the name of the day using Arduino Uno microcontroller technology is usually directly programmed. But sometimes the design of tools is moved when uploading the Arduino integrated development environment (IDE) program, therefore a push button (push button) is used to change the appearance of the day's name. For this study using a push switch (Push Button) in overcoming the error.
Estimasi Potensi Energi Listrik dari Sampah di Tempat Pemrosesan Akhir Sampah Talang Gulo Kota Jambi
Authors: S Guntar Marolop
Published: March 2021

Garbage is something of the residual material of production, which is generally not desirable owner. Therefore garbage is discarded and ends at the end of waste processing (TPA) to be managed to be destroyed. Waste destruction in TPA has always caused problems such as the problem of negative waste impact on the environment, and the difficulty of finding new TPA location when the TPA that is being used has expired. Indeed, garbage still has resources to be processed. One of the technology that can process garbage is a waste power plant (PLTSa) produces electrical energy. This technology has been widely used in Indonesia. The principle is the garbage that pollutes the environment utilized for power generation. Jambi City has TPA in Talang Gulo, but the destruction of garbage in TPA still uses a natural process, which is to block garbage with the method of destruction of garbage in the soil. Indeed, garbage in TPA Talang Gulo can be used as a source of power on PLTSa technology that produces electrical energy. From data of garbage volumes from 2018 to 2030, it has been worth utilizing garbage through PLTSa. The large electrical energy produced was 355,126.78 in the year 2030.
Rancang Bangun Miniatur Pembangkit Listrik Tenaga Mikrohidro Dibengkel Teknik Listrik Universitas Batanghari Jambi
Authors: Ottentri Ottentri , Matalata Hendi
Published: March 2021

The need for electrical energy is a necessity that can not be ditawar–tawar anymore for a life worthy of every person in this day. Generally, remote rural areas located in mountainous areas have a large potential of water energy, so that the hydroelectric power plant is one of the energy sources that can be developed. Jambi is an area covered with Batanghari River flows. This research aims to know how the work process of Microhydro power plant.  Components of the essential components of miniature microhydro power plants are reservoirs, rapid pipes, turbines, generators where these components are not loose bias, interrelated to one another. Round of Tubin obtained from the experiment is 400 rpm with water discharge 0.0016 m3/s. The maximum voltage generated by the generator is 18 volts. Voltage generated from the generator to charging the Batrai used inverter of 13.1 volts. The load will remain on even though the main energy source is the generator stop in the same, because the energy of the second is Batrai.
Sistem Pengujian Tegangan Boost Converter Pada Pembangkit ListrikTenaga Air (PLTH) Picohydro Kapasitas Rendah
Authors: Suyanto M , Subandi Subandi , Syafriyudin Syafriyudin , Mubarok Isa
Published: March 2021

Voltage testing, on hybrid power plants (PLTH), uses two sources that are solar/solar power plants and waterwheel power plants. Supporting components to produce electric energy conversion one of them is boostconverter which is the main subject. Therefore the author is interested in making and testing the voltage, on the boost converter with the aim to maximize the performance of the DC Genertator as a pensupplay Batterai/accu on PLTH Pico Hydro. The DC-voltage source of the DC-DC converter can be obtained from a generator, or an AC voltage source that is air-conditioned to DC. While Dc-DC converter is a power electronic circuit, to convert a DC to DC voltage input into the output voltage with a greater value. The test results of the voltage from the field data can be concluded as follows. The voltage boost converter test results, on the Pico Hydro Hybrid power plant can produce a voltage of 13 volts from the output DC Generator 8.39 Volt. The output voltage generated by the boost converter is 13.4 volts, can be stable although the output voltage of the generator is variable. With the addition of the tool boost converter on PLTH Pico Hydro, can help battery charging/ACCU to charge the required voltage of the battery is 12 volts, from the boos convevter 13.4 volt long time charging ACCU 5.3 hours.
Pengujian Karakteristik Turbin Angin Tipe Horizontal Sudu Flat Multiblade Dengan Pengaturan Sudut Sudu
Authors: Syafriyudin Syafriyudin , Suyanto M , Subandi Subandi , W M Nurkhakim
Published: March 2021

One effort to overcome the energy crisis is to utilize wind energy as a power source. Angina power Plant is a method for generating electrical energy by rotating the angina turbine connected with the generator, the electric energy produced by the generator is stored in an element of electric energy storage (battery). The next one will be channeled to load center like household. The Perarancangan of the horizontal type flat Multiblade Sudu is using a microcontroller that can change the angle of the sudu according to the wind speed so as to maximize the power of wind potential energy. For a sudu angle setting that can adjust the speed of the wind, use two servo motors that have been control by the Arduinouno from the input anemometer so that the angle of the sudu can adjust the wind speed. The results have shown that the turbine-angle arrangement of the turbines can increase the rotation of the wind turbine, thereby increasing the voltage raised in the generator. The optimal angle of the Sudu is at a 15o angle, at a wind speed of 9.5 m/s, resulting in a turbine round of 610 rpm.
Desain Charger Control Pembangkit Listrik Tenaga Hybrid Dengan Pengaturan Duty Cycle PWM
Authors: Johar Leily W
Published: March 2021

The use of DC source voltage obtained from solar cells and DC generators varies in value depending on the surrounding natural conditions, for that a controller is needed which functions to regulate the voltage in carrying out the charging process to the accumulator. This paper will discuss about the design of charge controller based on Arduino Uno R3 with ATmega328 microcontroller. This controller is used to regulate the charging process from a DC source with a maximum open circuit voltage of 24 Volts, which is then used to charge the 12 Volt accumulator. This charge controller works by sending a source voltage that is regulated by pulse width modulation. When the accumulator voltage is 13.8 Volt, the controller will carry out a charging process with a duty cycle of 95%, if the accumulator voltage is> 13.8 Volts and ˂14.4 Volts, charging will be carried out with a duty cycle of 10%, and if the accumulator voltage exceeds 14.4 Volt, the charging process will be stopped. Some protection equipment is also included in this charge controller such as overvoltage protection, overcurrent and also control of the connection breaker to the load when the accumulator voltage is weak, and a disconnect from source to accumulator when the accumulator condition is full. To show the work of the whole system, with the Arduino Uno R3 microcontroller the parameters of source voltage, accumulator voltage and percentage of accumulator status are displayed on the LCD screen then 2 LED lights and a buzzer as indicators during the charging process and when the accumulator condition is weak. From the results of the voltage reading on the voltage divider sensor, it has an error of less than 6.22% at the source terminal and 6.89% at the accumulator terminal..
Rancang Bangun Pembangkit Listrik Alternatif Menggunakan Termoelektrik dengan Memanfaatkan pada Tungku Pemanas
Authors: Manap Muhammad Abdul , Fikri Al
Published: March 2021

his study aims to design an alternative power generator using a thermoelectric generator (TEG) by utilizing a heating furnace, using two thermoelectric generators (TEG) connected in series. Thermoelectrics that take advantage of temperature differences can produce voltages that correspond to the seebeck effect. The alternative power generator that has been designed consist of a thermoelectric, boost converter, and a 5 Watt DC lamp load. The test was carried out using a Boost Converter and using a 5 Watt DC lamp load for 20 minutes. The results of the research using the Boost Converter produce a voltage of 42.8 V with a temperature difference of 90°C, while using a 5 Watt DC lamp load produces a voltage of 8.81 V with a temperature difference of 82°C and the resulting current is 0.6 A, the resulting power 4.84W.
Peningkatan Kinerja Pemasaran UMKM Melalui Dimensi Kewirausahaan di Kabupaten Kerinci
Authors: Satria Edia , Yusnita Ida , Sari Ayu Esteka
Published: March 2021

Entrepreneurship is believed to be a tool to encourage economic growth to solve other economic problems, such as unemployment, poverty and social inequality. Micro, Small and Medium Enterprises is a business that plays an important role in the national economy. The success of the marketing of Micro, Small and Medium Enterprises is influenced by the dimension of entrepreneurship. The dimensions of entrepreneurship used in this study are economic entrepreneurship, resource-based entrepreneurship and human capital entrepreneurship. Respondents in this study were actors of Micro, Small and Medium Enterprises (MSMEs) in Gunung Raya Subdistrict, Kerinci Regency as many 100 respondents. The Model Testing Technique in this study used the Structural Equation Model (SEM) using AMOS. The results showed that the Entrepreneurship Dimension had a positive and significant effect on the Market Performance of MSMEs. The magnitude of the influence of entrepreneurship Dimension on Market Performance of MSMEs is 0.231 or 23.1%, so it is necessary to support entrepreneurship Dimension to increase the Market Performance of MSMEs.
Pengaruh Tingkat Kedisiplinan Terhadap Kinerja Pegawai Pada Kantor Badan Narkotika Nasional (BNN) Kabupaten Tanjung Jabung Timur
Authors: Dirta Hezza Juni , Handayani Rahmi
Published: March 2021

The purpose of this study was to determine the effect of the level of discipline on employee performance at the National Narcotics Agency (NNA) office in Tanjung Jabung Timur district. The variables tested in this study were the level of discipline and employee performance. The sample of this study is the Office of the National Narcotics Agency (NNA) of Tanjung Jabung Timur Regency. The survey was conducted by all 37 NNA employees. Testing the hypothesis in this study using simple regression analysis. Hypothesis testing results indicate that the level of discipline affects employee performance.
Pengaruh Financial Literacy dan Financial Behavior terhadap Keputusan Investasi pada Ibu-Ibu PKK Kota Jambi
Authors: Mutiara Indah , Agustian Efandri
Published: March 2021

This study aims to determine the level of influence of Financial Literacy and Financial Behavior toward investment decisions. The data used in this study are primary data, the sample used in this study were PKK members in Jambi City. The sampling technique was carried out by using purposive sampling method. The results obtained by using multiple linear regression test Y = 2,337 + 0.159 X1 + 0.518 X2, and the test of this study using the f-test, R2-test and t-test. The results of this study indicate that partially the Financial Literacy and Financial Behavior affect investment decisions.
Evaluasi Program ‘Yuk Nabung Saham oleh PT. Bursa Efek Indonesia Terhadap Peningkatan Literasi dan Inklusi Keuangan di Kota Jambi
Authors: Haryono Sugeng , Veronica Deka
Published: March 2021

The growth of investors in the Indonesian capital market as one of the alternatives to public investment is considered quite good Indonesia Stock Exchange (IDX) as the manager of securities sales in Indonesia continues to make efforts to improve the understanding of public investment in the capital market. One of them is by increasing the number of Bank Administrator Of Customer's Fund Account (BANK RDN) and at this time IDX is eager to make the introduction of the program "Yuk Nabung Saham". This program is a campaign that invites indonesians to invest in the capital market through "share saving". This research aims to test the influence of the "Yuk Nabung Saham" program on improving financial literacy and inclusion in economic studies students in universities in Jambi cities who have met the sample criteria. Based on the research results of the campaign program "Yuk Nabung Saham" has a positive effect on the increase in financial literacy and inclusion in students in Jambi city means that if someone follows the program then literacy will be more increased and financial inclusion will be easier to obtain in addition to the campaign program "Yuk Nabung Saham" has a positive impact on the increasing number of stock investors, especially students in Jambi city, meaning if the YNS program goes well and can manage it , the greater the level of student financial inclusion.
Konsep Manajemen Talenta dan Pengaruhnya Terhadap Kinerja Karyawan
Authors: Anisah Anisah , AS Sakinah
Published: March 2021

This study aims to examine the concept of talent management and to analyze the influence of talent management, competence on employee performance. The sample in this study is employees of marketing in the banking sector in the city of Jambi. The data collection method is using a questionnaire and analyzed using verification analysis, the analysis tool in this study is using Component Based SEM (Structural Equation Modeling), namely PLS (Partial Least Square). The results of this study will explain how the influence of the main variables studied, namely talent management, competence and employee performance.