bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Variasi Suhu Dan Lama Waktu Pembakaran Terhadap Hasil Sintesis Silika Dari Daun Bambu Menggunakan Metode Sol-Gel
Authors: Rizky Audry Azilla , Muhammad Muhammad , Ginting Zainuddin , Nurlaila Rizka , ZA Nasrul
Published: May 2023

Bambu merupakan tanaman yang banyak hidup di Indonesia, tanaman beruas ini memiliki banyak manfaat salah satunya pada daunnya . Secara kimia, abu daun bambu mempunyai kandungan silika sebesar 77,96% - 88,05% dan sisanya oksida dari beberapa logam. Penelitian ini bertujuan untuk mendapatkan silika dari abu daun bambu dengan mengkaji pengaruh suhu pembakaran (600oC, 700oC dan 800oC ) dan waktu furnace (2, 3, dan 4 jam) terhadap yield silika, kadar air, XRD dan FTIR. Proses pembuatan silika dari daun bambu menggunakan metode Sol-Gel, yang melibatkan ekstraksi silika dengan larutan alkali dan gelasi silika menggunakan larutan asam. Dari hasil penelitian didapatkan nilai yield silika tertinggi adalah 87,02% dengan suhu pembakaran 600oC selama 4 jam. Dan nilai kadar air terendah yaitu 3,9% pada suhu pembakaran 800oC dan selama 4 jam. Berdasarkan karakteristik menggunakan XRD diketahui bahwa silika yang dihasilkan berfase amorf dan hasil uji gugus fungsional menggunakan FTIR terdapat gugus fungsional berupa gugus silanol (Si-OH) dan gugus siloksan (Si-O-Si).
Variasi Waktu dan Konsentrasi KOH Dalam Produksi Asam Oksalat (C2H2O4) dari Limbah Kertas Hvs Dengan Metode Peleburan Alkali
Authors: Maidayanti Tasya , Hakim Lukman , Nurlaila Rizka , Meriatna Meriatna , Dewi Rozanna , Fibarzi Wiza Ulfa
Published: May 2023

Asam oksalat adalah senyawa kimia yang memiliki rumus H2C2O4 dengan nama sistematis asam etanadioat. Selulosa adalah senyawa organik dengan rumus (C6H10O5)n. Selulosa apabila direaksikan dengan alkali kuat akan menghasilkan asam oksalat, asam asetat dan asam formiat dan reaksi ini disebut hidrolisis atau peleburan berkatalis basa. Limbah kertas hvs terkandung senyawa selulosa, senyawa selulosa ini dapat diolah menjadi produk lain seperti asam oksalat. Tujuan dari penelitian ini adalah menghasilkan asam oksalat dari limbah kertas hvs dengan metode peleburan alkali, mengetahui waktu hidrolisis dan konsentrasi KOH terbaik dalam produksi asam oksalat dari limbah kertas hvs. Metode yang digunakan untuk memperoleh asam oksalat adalah metode hidrolisis peleburan alkali, dengan variasi KOH 15%, 30% dan 40% dan waktu hidrolisis 45, 75 dan 95 menit. Hasil yang didapatkan pada penelitian ini yaitu yield kadar asam oksalat tertinggi terdapat pada konsentrasi KOH 15% dengan waktu  hidrolisis 75 menit yaitu sebesar 7,79 %. Karakteristik asam oksalat yang diperoleh yaitu mempunyai nilai pH 1,5 dan mempunyai serapan Fourier Transform Infra Red (FTIR) yaitu serapan gugus hidroksil (O-H) pada bilangan gelombang 3402,43cm-1, gugus C=O yaitu pada bilangan gelombang 1683,86 cm-1 dan gugus C-O yaitu pada bilangan gelombang 1120,64 cm-1.
AFFECTING OF E-COMMERCE WEBSITES ON CUSTOMER SATISFACTION: A CASE STUDY OF HOME PRODUCTS USERS
Authors: Sinhaseni Tuneklao , Nuangjamnong Chompu , Dowpiset Kitikorn
Published: May 2023

This study aims to find out how the website's design, the quality of the information, security, responsiveness, and trust all affect customer satisfaction in the context of e-Commerce website of home product users in the Thai population. The objectives of this study are to investigate web design, information quality, security, responsiveness, and trust toward customer satisfaction in e-Commerce websites in home products. Data was gathered through a customers of home products thru online survey, and 385 participants response from home product user were analyzed using the JAMOVI program. The research results indicate that web design, security, responsiveness, and trust are crucial factors affecting customer satisfaction towards e-Commerce websites of home products. However, information quality has insignificant affecting on customer satisfaction in e-Commerce websites of home products. The findings in this study suggest that e-Commerce websites should have a good design website of their home product contents accurately and quickly, responding to the customers properly.
Quality of Arbuscular Mycorrhizal Fungi Produced with Different Nutritional Fortification Techniques for Increased Productivity Alfalfa (Medicago sativa L.)
Authors: Ramadayanti Ika ,   Departemen Ilmu Nutrisi dan Teknologi Pakan, Fakultas Peternakan, IPB University, Prihantoro Iwan , Karti Panca
Published: May 2023

This study aimed to evaluate the quality of Arbuscular mycorrhizal fungi (AMF) produced by different nutrient fortification techniques in increasing the adaptation and productivity of alfalfa (Medicago sativa L.) at the greenhouse scale. The research design was a completely randomized design (CRD) with 5 treatments and 10 replications. The treatment based on different types of AMF product, including alfalfa without AMF as control (P0), superior AMF (P1), and three types of AMF products from the Agrostology Laboratory, Faculty of Animal Science IPB: AMF1 (P2), AMF2 (P3), and AMF3 (P4). The control treatment was given a 100% recommended fertilizer dose while the AMF treated plants were given a 50% recommended fertilizer dose. The results showed that all AMF products produced the same effectiveness for plant morphological variables. The superior AMF product, AMF2, and AMF3 gave the better response to AMF colonization parameters and dry weight of alfalfa plants than the control and AMF1 product. It was concluded that AMF products with different nutrient fortification techniques were effective in symbiosis and increase the adaptation and productivity of alfalfa compared to control. The quality of AMF produced by different nutrient fortification techniques had the same performance as superior AMF.
Comparative Study of Feeding and Nutrition for Beef Cattle in Smallholder Farmers: Case Study in Regencies of Malang, Pamekasan, and Tuban
Authors: Huda Asri ,   Faculty of Animal Science, University of Brawijaya, Malang 65145, Indonesia, Kusmartono Kusmartono , Ndaru Poespitasari , Susilawati Trinil , Susilawati Susilawati
Published: May 2023

This study evaluated feeds for fattening and breeding beef cattle in smallholder farmers located in Malang, Pamekasan, and Tuban regencies. The research was conducted using two methods i.e., survey and laboratory analysis. The data survey was carried out in each area, and 30 respondents (n=30) were observed per area in classification of low to medium livestock ownership. Laboratory analysis was performed to analyse the chemical composition of the feed and to measure the total gas production. The data analysis approach used quantitative descriptive to describe the nutritional value quality of beef cattle feed with available quantitative data. The results showed variations in the nutrient content of the beef cattle feed in three different study locations in smallholder farmers located in Regency of Malang, Pamekasan, and Tuban while the total gas production showed a high production in the fattening cattle feeds between three study locations. Thus, it was concluded that the feed for fattening cattle had better nutrient content in terms of crude protein content and total gas production than the breeding cattle feed.
Effectiveness of Single and Consortium Arbuscular Mycorrhizal Fungi Inoculum on Indigofera zollingeriana Plant Nurseries
Authors: Pratama Muhammad ,   Departemen Ilmu Nutrisi dan Teknologi Pakan, Fakultas Peternakan, Institut Pertanian Bogor, Prihantoro Iwan , Karti Panca
Published: May 2023

Arbuscular mycorrhizal fungi (AMF) are potential biofertilizers for plants. The succeed and quality of AMF inoculation is related to the type of AMF and plants. This study aimed to find the most effective AMF species in Indigofera zollingeriana nurseries. This experiment study was designed using a completely randomized design with six treatments and five replications based on different types of AMF in single and consortium forms. Treatment details include: IFMIX (consortium: a mixture of five types of AMF), IFTE (Glomus etinucatum), IFTM (Glomus manihotis), IFTA (Acaulospora tuberculata), IFTG (Gigaspora margarita), IFTS Glomus sp. Data were analyzed using Analysis of Variance (ANOVA) and Duncan's Multiple Range Test. Based on the results of variance, AMF inoculation at Indigofera zollingeriana nurseries in a single form (IFTE, IFTM, IFTA, IFTG, and IFTS) resulted in effectiveness that was not significantly different with the consortium FMA inoculation (IFMIX) against AMF colonization, plant height, stem diameter, fresh and dry biomass of plants. Inoculation of inoculums in a single IFTE form resulted in a higher colonization value (p<0.05) than single inoculums IFTA and IFTM. It can be concluded that inoculation of a single AMF (Glomus etinucatum, Glomus manihotis, Acaulospora tuberculata, Gigaspora margarita, Glomus sp.) against AMF consortium produced the same symbiotic effectiveness on root colonization, morphological response and plant biomass production level in Indigofera zollingeriana nurseries. The root colonization rate of a single IFTE inoculum was better than a single inoculum of IFTA and IFTM.
Formulation and antibacterial effectiveness of fermented soybean husk extracts from industrial waste of tempe as eco-friendly hand sanitizer gel
Authors: Larasati Ayu , Ayu Pita Baiq Nuraini , Yarfaryh Uswatun Hasanah , Haerani Eva , Murniati Murniati
Published: May 2023

This study aims to determine the formulation and antibacterial effectiveness of fermented soybean seed husk extract from tempe industrial waste as an environmentally friendly hand sanitizer gel. This type of research is an experimental study with variations in fermented soybean husk extract concentration, namely 0%, 5%, 15%, 20%, 50%, and 100%. Observational data were tested by analysis of variance ANOVA at a 5% level using Co-Stat software. Suppose there is a significant difference, a further test of Honest Significant Difference (BNJ) (organoleptic test), a further test of Orthogonal Polynomial Method (MOP) (spreadability, pH, viscosity), descriptive analysis test (flavonoid test, homogeneity test, antibacterial activity test is carried out) and test the total number of germs). The results showed that the fermented extract of soybean seed husk was positive for flavonoids, characterized by a bright yellow color change when added with 10% NaOH. The concentration of fermented soybean husk extract significantly affected the hand sanitizer gel's organoleptic properties, dispersion, total pH, and viscosity. Based on the organoleptic test, the panelists preferred the clear gel color in the F1 treatment (0%) and the thick, slightly liquid gel form with a slightly scented soybean husk in the F3 treatment (10%). The concentration treatment of soybean husk fermented extract (50%) was the best treatment based on good homogeneity, total pH 4.35, viscosity 2405 cPs, following SNI No.06-2588, and spreadability of 4.47 cm which was close to hand gel. For commercial sanitizers, the diameter of the inhibition zone against Escherichia coli bacteria ATCC 2922 and Staphylococcus aureus ATCC 2923 is 14 mm and 12 mm.
Pendampingan Pembuatan Rencana Anggaran Biaya Kantor Desa Persiapan Sama Guna Kecamatan Tanjung Kabupaten Lombok Utara
Authors: Zarkasi Ahmad , Adryan Fitrayudha  , Heni Pujiastuti  , Nurul Hidayati  , Aulia Muttaqin  , Maya Saridewi Pascanawati  , Isfanari Isfanari , Erni Yustissiani  , Hadi Rasikhun  , Adiman Fariyadin
Published: May 2023

Sama Guna Village is a burning village, according to North Lombok Regent Regulation Number 12 of 2015 and the Governor of West Nusa Tenggara Number 100/897/PEM. Sama Guna Village has obtained its operational rights to run the wheels of its organization. However, infrastructure facilities are still relatively minimal, as the office currently occupied is still on loan. The purpose of this service is to provide knowledge in making the budget plan required for the construction of the Sama Guna Village Office in accordance with PUPR Ministerial Regulation No. 1 of 2022. The method used is the presentation and discussion of PowerPoint slide media, which is then followed by assistance in making RAB. The activity took place on Wednesday, March 8, 2023, from 9.30 to 13.00 WITA, according to the agreement with the Head of the Sama Guna Village, in the meeting hall of the Sama Guna Village Office. This activity ran smoothly and in an orderly manner. During the implementation of the activity, the participants were very enthusiastic about participating in the activity; this was seen from the total number of participants, which reached more than 25 and was attended by the village head, devices, Babinsa, and the local community.
Workshop Pengembangan Media Pembelajaran Matematika berbasis GeoGebra dan Augmented Reality
Authors: Soeprianto Harry , Turmuzi Muhammad , Junaidi Junaidi , Lu'luilmaknun Ulfa
Published: May 2023

the engagement activity begins with the development of technology and communication, as well as the high demand for mathematics learning media by teachers. On the other hand, the quality of education, particularly in junior high schools, is still low. Teachers' competence, especially in media usage and development, is also low. Therefore, a workshop on media development will be conducted to enhance teachers' competence and the availability of learning media. The implementation methods for this engagement activity include material presentations, demonstrations, practical exercises, group discussions, and evaluation with feedback. The results of this engagement activity show that the majority of junior high school teachers in Central Lombok believe that the use of Geogebra and augmented reality in mathematics learning has the potential to improve students' understanding of concepts, interest, motivation, creativity, and learning outcomes. Teachers also acknowledge the importance of their role in effectively integrating this technology. Thus, the use of Geogebra and augmented reality-based learning media can provide positive benefits in enhancing the quality of mathematics education in schools. It is important to consider contextual factors and readiness when implementing Geogebra and augmented reality. The utilization of technology, especially Geogebra and augmented reality, should be tailored to the needs, availability of resources, and characteristics of each educational level.
Pengaruh Resiliensi dan Perceived Organizational Support terhadap Work Engagement pada Tenaga Kerja Lapangan LSM AOD
Authors: Annisa Rachmadheanty Elmawan  , Hendro Prakoso  , Vici Sofianna Putera
Published: May 2023

Abstract. Currently, companies not only recruit high abilities employees, but also looking for employees who have work engagement. According to Schaufeli et al., work engagement is a positive motivational affective condition related to work with characteristics of vigor, dedication, and absorption. The aims of this study to determine how much influence the variables of resilience and perceived organizational support (POS) on work engagement in AOD NGO field workers in Bandung. The number of samples in this study is 41 AOD NGO field workers. This study using resilience measurement tool from Smith et al., the perceived organizational support measurement tool from Eisenberger et al., and the work engagement measurement tool from Schaufeli & Bakker. Multiple regression were used for analysis the data. The results showed that 63% of AOD NGO field workers had moderate levels of resilience, 61% had high levels of POS, and 80% had moderate levels of work engagement. Based on the regression results, it found that the perceived resilience and organizational support had a significant effect on work engagement by 14.9%.

Abstrak. Saat ini perusahaan tidak hanya mencari calon karyawan yang memiliki kemampuan di atas rata-rata, tetapi juga mencari calon karyawan yang memiliki work engagement. Menurut Schaufeli et al.  work engangement adalah suatu kondisi afektif motivasional positif terkait dengan pekerjaan dengan karakteristik vigor, dedication dan absorption. Penelitian ini bertujuan untuk mengetahui seberapa besar pengaruh variabel resiliensi dan perceived organizational support (POS) terhadap work engagement pada tenaga kerja lapangan LSM AOD di Bandung. Jumlah sampel dalam penelitian ini berjumlah 41 tenaga kerja lapangan LSM AOD. Alat ukur yang digunakan adalah alat ukur resiliensi dari Smith et.al, alat ukur perceived organizational support dari Eisenberger et.al, serta alat ukur work engagement dari Schaufeli & Bakker. Analisis data yang digunakan adalah multiple regression. Hasil penelitian menunjukan bahwa 63% tenaga kerja lapangan LSM AOD memiliki tingkat resiliensi sedang, 61% memiliki tingkat POS tinggi, dan 80% memiliki tingkat work engagement sedang. Berdasarkan hasil regresi ditemukan bahwa resiliensi dan perceived organizational support berpengaruh signifikan terhadap work engagement sebesar 14,9%.
Anais XV SEMINÁRIO DE DESENVOLVIMENTO DO ENSINO, DA PESQUISA E EXTENSÃO - SEDEPEX
Authors: Centa Ariana
Published: May 2023

Anais XV SEMINÁRIO DE DESENVOLVIMENTO DO ENSINO, DA PESQUISA E EXTENSÃO - SEDEPEX
O SEDEPEX é um evento da Universidade Alto Vale do Rio do Peixe que envolve os cursos de Graduação e Pós-graduação e as Coordenadorias de Área de Pesquisa e de Extensão, fazendo o registro destas importantes funções da universidade.
Os trabalhos apresentados no SEDEPEX são divididos em categorias e por área de conhecimento. Nesta edição foram submetidos aproximadamente 800 trabalhos entre os Campus de Caçador e Fraiburgo, divididos nas categorias de Iniciação Científica, Leituras Interdisciplinares, Pesquisa Científica, Práticas de Estágio, Projetos Integradores, Projetos Extensionistas e Trabalhos de Conclusão de Curso.
Assim, o XV SEDEPEX teve por objetivo divulgar, de forma integrada, as produções do ensino, da pesquisa, da extensão e inovação junto a diferentes segmentos das comunidades.
- Incentivando a participação de professores e alunos nos projetos de pesquisa e iniciação científica, bem como a participação nos grupos de pesquisa da instituição;
- Fomentando também a elaboração e implementação de projetos de extensão universitária, buscando a disseminação do conhecimento produzido na universidade que abordam temas relevantes para o desenvolvimento social da região.
Frecuencia cardíaca como indicador de fatiga aguda en el manejo manual de materiales
Authors: Vázquez Veloz Lamberto , Mariscal Lagarda Sonia , Rivera Rodríguez Manuel Antonio
Published: May 2023

El manejo manual de materiales es uno de los principales causantes de Trastornos Músculo Esqueléticos (TME) mayormente enfocados en la zona lumbosacra de los operadores que realizan estas actividades. La presente investigación conlleva el estudio de la secuencia operativa, de alta demanda biomecánica en los movimientos, que debe llevar a cabo trabajadores para realizar las operaciones de manejo manual de materiales y su impacto en la capacidad de los sistemas circulatorio y respiratorio para suministrar oxígeno a los músculos esqueléticos. Las evaluaciones ergonómicas en el manejo manual de materiales definen el riesgo en el que se encuentra un operador al realizar estas actividades, lo que normalmente se resuelve en función a los controles organizativos enfocados en los periodos de recuperación y cambio de actividad dentro de la jornada laboral. El objetivo del presente trabajo se enfoca en el análisis del comportamiento que se presenta en la frecuencia cardiaca de operadores cuando realizan el manejo manual de materiales. En el periodo transiente la frecuencia cardiaca se eleva rápidamente, en el periodo estable crece moderadamente y luego del punto crítico cae súbitamente, llegando con ello a lo que se denomina fatiga aguda.
Evaluación del riesgo ergonómico en el proceso de fabricación de la tortilla para la detección de trastornos musculoesqueléticos
Authors: Cuellar Celestino Jhonathan , Palí Casanova Ramon de Jesus
Published: May 2023

En México, según el informe del 2017 de la Secretaría del Trabajo y Prevención Social (STPS) las enfermedades Trastornos Musculoesqueléticos (TME) se encuentran entre los problemas más importantes de salud en el trabajo, además, constituyen una de las principales causas de ausentismo laboral. La presente investigación surge de la necesidad de estudiar el desarrollo de las enfermedades de TME que se presentan en las Pequeñas y Medianas Empresas (PYME) de fabricación de la tortilla. Este trabajo de investigación tuvo un diseño experimental mixto, que tuvo un alcance transaccional correlacional-causal en donde la muestra fue representativa del tipo probabilístico aleatorio simple. Del enfoque cuantitativo se tomaron las técnicas de observación y encuesta, apoyadas en la evaluación Quick Exposure Check (QEC) para medir las diferentes posturas de trabajo, frecuencias de movimiento, y esfuerzos en movimientos. El análisis de datos se llevó a cabo usando el programa IBSPSS Statistic 22.0. Los resultados fueron que la parte del cuerpo que estuvieron expuestas a un alto nivel de riesgo de un TME fue la espalda con un 12,22%. De los 11 casos de 20 con nivel de riesgo alto en desarrollar un TME en la espalda se presentaron en la actividad de transporte de material. La utilización dentro del proceso de la tortilla de un elevador manual de cargas permitió la reducción del nivel de riesgo, por lo que el elevador manual de cargas es una máquina que debe ser implementada en los procesos de las tortillerías.
Factores psicosociales en la labor docente
Authors: Cortés Orellana Valeria
Published: May 2023

La siguiente revisión tiene por objeto conocer la realidad docente en los establecimientos educacionales, y la existencia de factores psicosociales relacionados a las tareas diarias que ellos desempeñan. Se busca comprender cuatro puntos en específico en cuanto a los factores psicosociales de establecimientos educacionales, siendo estos los siguientes: los factores psicosociales en trabajadores, causas de la presencia de estos factores, sus efectos y estrategias de mitigación. La metodología utilizada en esta revisión se realizó a través de material informativo, siendo los principales, revistas de investigación y buscadores como Google Académico.
THE ESSENCE AND MECHANISM OF ENVIRONMENTAL SAFETY MANAGEMENT
Authors: Amber Arthur
Published: May 2023

Relevance. Over time and as public awareness grows, it is becoming increasingly clear that environmental protection is one of the most important issues facing people in the 21st century. Growing industrialisation and business development are increasing the impact of business on the environment, which can have serious consequences for human health, natural ecosystems and the economy. As a result, environmental security has become one of the most important issues for companies, governments and society as a whole. The article reveals the theoretical foundations of the essence and mechanisms of environmental safety management of an enterprise. The main objectives are: to clarify the essence of the concept of corporate environmental safety management; to propose a classification of objects, subjects and functions of corporate environmental safety management; to consider approaches to corporate environmental safety management; to illuminate theories of corporate environmental safety management that influence national security; to identify stages of corporate environmental safety management; and to develop a classification of tools and indicators for corporate environmental safety management. Research methods. The article used a historical approach, a systemic approach, methods of analysis and synthesis, deduction, the logical method and a method of generalisation as the basis of the study. Conclusions. This research confirms that managing environmental safety in an organisation is a complex process that requires the involvement of different management subjects and objects. Furthermore, the study showed that theories of environmental safety management in enterprises have implications for ensuring national security. The result of this research is the development of classifications for objects, subjects, functions, tools and indicators of environmental safety management in enterprises, which will improve and effectively perform tasks related to environmental safety management in enterprises.
Perception of the Residential Environmental Quality of Yenagoa Metropolis, Nigeria
Authors: Ohwo Odafivwotu , Ejemeyovwi Danny Ochuko
Published: May 2023

Residential environmental quality (REQ) affects human health and quality of life (QoL). Therefore, this study as sessed residents’ perception of the REQ of the Yenagoa metropolis. Data for the study were sourced from the 400 administered questionnaires, which required respondents to rate their REQ based on seven selected indicators (air quality, drinking water quality, housing location, sanitation, waste management, housing accessibility and noise pollution). The respondents were sampled using the multistage sampling technique. The data were analyzed using frequency, percent age, t-test, ANOVA and REQ model. The findings show that the overall calculated REQ of Yenagoa was classified as “good quality". The best-rated indicator was drinking water quality, while the least-rated was noise pollution. Ratings based on respondents' sex, income and educational status recorded similar results. Also, the respondents' perception of the REQ across the four zones was similar as the calculated ratings of all the zones fell under the "good quality" classification. Furthermore, the hypotheses tested revealed that there were no significant differences in the perception of the REQ by sex and income status, while significant variation exists by education status. Despite the general "good quality" rating, there is still room for improvement, especially in the areas of noise pollution, sanitation and housing location, which received relatively low ratings.
Assessment of Slope Stability by the Fellenius Slice Method: Analytical and numerical approach
Authors: Koffi J. AGBELELE  , Ernesto C. HOUEHANOU  , Marx Ferdinand AHLINHAN  , Abdoul W. ALI  , Houngan Comlan Aristide
Published: May 2023

Slope stability is a topic of great importance in civil engineering, as slope failures can cause considerable damage to infrastructure and downstream properties. In this study, we applied the Fellenius slice method, using both the analytical method, as well as the numerical method, which was performed using the SLOPE/W module of the Geostudio software. The results obtained by both methods showed that the increase in soil cohesion improves the stability of the slope. The safety coefficients obtained by the analytical method vary between 0.534 and 1.086, while those obtained by the numerical method vary between 0.539 and 1.096, for cohesion values ranging from 4 kPa to 20 kPa. The safety coefficients obtained by the analytical and numerical methods follow straight lines of equation y=0.0344x+0.4092 and y=0.0345x+0.4169, respectively. The results of the analytical method show that a safety factor of 1.5 is achieved at a value of 32 kPa for the cohesion, while the numerical method shows a safety factor of 1.5 achieved at a value of 32 kPa for the cohesion. The difference between the two cohesions is explained by the smaller number of slices used in the analytical method. Nevertheless, the equation from the analytical method can be used as a general guide to evaluate the evolution of the safety coefficient of a slope with surcharge under long-term behavior with incremental cohesion, but this does not exclude verification by dedicated software based on the finite element method.
Impact of human capital investment on economic growth in Nigeria: Econometric approach of Autoregressive Distributive Lag Model (ARDL)
Authors: Chidera Godson Eze
Published: May 2023

The study examined the impact of human capital investment on the economic growth in Nigeria over a period of 1985 to 2021. Specifically, the study sought to: i) determine the impact of government expenditure on education on the economic growth in Nigeria; ii) ascertain the impact of government expenditure on health on the economic growth in Nigeria; iii) evaluate the impact of tertiary school enrolment rate on the economic growth in Nigeria. The variables of the study consist of real Gross domestic Product (RGDP), inflation rate (INFLA), exchange rate (EXCHR), education government expenditure (EGE), health government expenditure (HGE), primary School enrolment rate (PSER), secondary school enrolment rate (SSER) and tertiary school enrolment rate (TSER), child mortality rate (CMR) and life expectancy at birth (LIFE). The data analytical techniques were descriptive Statistics, Augmented Dickey-Fuller Unit Root test and Autoregressive distributive Lag Model. The following are the major findings of the study: i) education expenditure (EGE) had 43% positive and insignificant impact on the economic growth in Nigeria [P-value (0.8508) was greater than its significant value (0.05]; ii) health expenditure (HGE) had 8% positive and insignificant impact on economic growth in Nigeria [P-value (0.1925) was greater than its significant value (0.05]; iii) tertiary school enrolment rate (TSER) had 48% positive and insignificant impact on the economic growth in Nigeria [P-value (0.2660) was greater than its significant value (0.05]. This study concludes that the human capital investment has positive and insignificant impact on the economic growth in Nigeria. The study recommends that government should start and sustain allocating 20 percent increase of funds to capital expenditure on education to provide facilities such as libraries, laboratory equipment, computers and modern learning equipment. Government should attract international donor agencies like World Bank, United Nations and UNESCO to help and put funds into the educational sector.
Phytochemical and pharmacological investigation of Crinum solapurense Lam
Authors: C.V. Nagathan  , Shivanand Kolageri  , Suresh Gunaki
Published: May 2023

The widely used indigenous medicinal plant Crinum solapurense Lam is the subject of the current inquiry. According to the study and pertinent literature, the plant Crinum solapurense Lam. It is most well-known for its use in traditional medicines, while different portions of the plant have received less attention. The current research program aims to assess the phytochemical analysis and antioxidant, anthelmintic efficacy of Crinum solapurense bulb ethanolic extract with the following objectives: authentication and storage of plant materials, successive extraction of different solvents from powdered drug, preliminary phytochemical screening review, assessment of the above extracts for action in vitro as an anthelmintic and antioxidant using DPPH and ABTS process. Crinum solapurense Lam, a drug, has been discovered during this inquiry. could be used as a more effective medicine for anthelmintic treatment. The plant Crinum solapurense might be a brand-new source of biologically active, stable antioxidants that could provide a solid scientific foundation for its usage in contemporary medicine.
Chest radiological features and their association with clinical manifestations in COVID-19 positive neonates and young infants
Authors: Elsaid MA Bedair  , Manasik Hassan  , Ahmed Khalil  , Talaat M Youssef  , Samar Magboul  , Ohood Alomari  , Tasneim Abdalla  , Hafez Alsliman  , Mohammed Al-Amri  , Ashraf Soliman
Published: May 2023

We report the Radiological findings in relation to the clinical features of coronavirus disease (COVID-19) in 37 symptomatic neonates and young infants (<2 months of age) who presented with a sepsis-like picture and proved to be infected with COVID-19. Patients and methods: We reviewed, recorded, and analyzed the clinical findings in relation to the imaging features of coronavirus disease (COVID-19) in 37 symptomatic neonates and young infants (<2 months of age) who presented with sepsis-like picture (fever, hypotonia, hypoactivity, cough, and poor feeding) and proved to be infected with COVID19 (PCR) between January 1, 2020, and June 1, 2020. Results: Our symptomatic newborns with COVID-19 infection had increased pulmonary vascularity in 6.2%, slightly accentuated central lung vascularity in 12.5%, and prominent hilar shadows with increased linear lung shadowing in the perihilar and precardiac in 34%. Increased linear lung shadowing with a tiny beaded-like appearance more distributed peripherally and at lower lobes occurred in 28%. Superadded peri-bronchial cuffing and perivascular haziness and lace-like fine linear appearance of interstitium occurred in 9.3%. Ground glass fine opacities (GGO) scattered in two or more lobes of both lungs appeared in 15.6%. Only 6.2% of symptomatic newborns showed superadded consolidations in both lungs, mainly peripherally oriented. Correlation with clinical severity of the disease (requirement of oxygen and assisted ventilation) proved that the appearance of GGO without consolidations was associated with moderate clinical severity, while the appearance of consolidations was associated with marked disease severity. Conclusions: These findings brought more attention and understanding of the radiological manifestations and their association with the clinical severity in COVID19 positive newborns and young infants.
IMPLEMENTASI PEMBELAJARAN BERBASIS CASE METHOD DALAM MENINGKATKAN KEMAMPUAN BERKOMUNIKASI DAN CRITICAL THINKING MAHASISWA
Authors: Ririen Deci , Irawati Irawati
Published: May 2023

: Participatory and collaborative learning systems, including case-based learning methods, are an alternative to adapt to the developments and challenges of the 21st century, which requires students to master the skills of communication and critical thinking. The purpose of this study is whether there are differences in students' communication skills and critical thinking through the application of case-based learning methods. How is the relationship between communication skills and critical thinking. This type of research is a quasi-experimental research. 2 groups of students who took the statistics course II semester IV were the research samples. The data analysis technique used independent t-test with prerequisite tests, namely homogeneity test and data normality test. As well as a correlation test to see the relationship between students' communication skills and critical thinking with the help of SPSS version 24. The results showed that there was an increase in students' communication skills in classes using case-based learning methods. There is an increase in students' critical thinking in classes that use case-based learning methods. There is a strong relationship between communication skills and students' critical thinking.
EFEKTIVITAS PEMBELAJARAN DARING SELAMA PANDEMI COVID-19 TERHADAP MOTIVASI BELAJAR MAHASISWA TEKNIK ELEKTROMEDIS STIKES MUHAMMADIYAH ACEH
Authors: Wirda Wirda , Hayati Hayati , Darliani Ani , Mauvizar Erli
Published: May 2023

Education is also a process in forming basic abilities both in the form of intelligent thinking and emotional feelings that are directed to human nature and to each other. Higher education institutions are required to be able to organize online learning. Online learning makes students free or a lot of time and can study anywhere. In addition, students can also get in touch with their lecturers through the use of several applications such as Google Classroom, Zoom, Google Meet, Video Conference or via the Whatsapp Group. The application of online learning is one of the learning innovations from the industrial revolution 4.0 and educators and students are expected to be able to adapt and take advantage of advances in technology and information. However, during the implementation of online learning there are obstacles in terms of aspects of facilities and infrastructure and human resources. Limited network connectivity, the high need for internet quota which is a serious obstacle for low-income people, and the lack of skills in using information technology faced by lecturers. Based on the results of the study of 52 respondents, the score of the online learning variable is included in the high category or percentage, so it becomes 65% if it is interpreted as being in the range of values 61% - 80% with the effective category. So that the results of the percentage test show that overall in each indicator online learning is categorized as effective with an average result of 65%.
Kinerja Komisi Aparatur Sipil Negara Sebagai Lembaga Pengawas Netralitas Aparatur Sipil Negara
Authors: Wulandari Novrida , Adianto Adianto
Published: May 2023

Netralitas ASN di Indonesia saat ini menjadi isu publik yang akan terus berlanjut. Mengenai hal tersebut pembinaan ASN diamanatkan dalam Undang-Undang No. 5 Tahun 2014 Tentang ASN. Pembinaan ASN juga berfungsi sebagai upaya pembentukan sikap netral dan bebas dari intervensi kekuasaan dan partai politik. Aspek pengawasan merupakan salah satu aspek yang sangat penting dalam penegakan netralitas pegawai ASN. Dalam proses pengawasan pemerintah, terdapat 2 macam proses pengawasan, yaitu pengawasan preventif dan represif serta pengawasan aktif dan pasif. Kajian pengawasan netralitas ASN oleh Komisi Aparatur Sipil Negara (KASN) ini mempunyai tiga tujuan yaitu, menganalisis penyebab terjadinya pelanggaran netralitas di kalangan pegawai ASN, mengevaluasi sistem pengawasan KASN terhadap pelaksanaan asas netralitas ASN, menyusun rekomendasi untuk peningkatan efektivitas sistem pengawasan KASN terhadap pelaksanaan asas netralitas ASN. Sejak tahun 2015 KASN sudah membangun sistem pengawasan. Sehingga Desember 2018 terdapat jumlah aduan yang masuk ke KASN mencapai 507 aduan. Pada artikel ini menggunakan metode studi literatur berupa jurnal dan metode searching.
Evaluasi Program PMT (Studi Komparatif Kecamatan Medan Tembung dan Silih Nara)
Authors: Hafni Roswita , Riza Pino , Insani Yuslia Lailia
Published: May 2023

Abstract This study aims to provide information about the factors associated with the incidence of malnutrition and can prevent it and can provide input to the government in improving health programs to achieve maximum goals so as not to decrease the productivity of labor towards the quality of human resources in the masses to come. This research is a basic research (basic research). The population in this study is the Medan city community Medan Tembung Subdistrict with a sample of 32 families who received PMT and for Takengon city Silih Nara Subdistrict with 41 families who received PMT, the sampling method was done by purposive sampling (judgmental) and snowball sampling methods. Data collection techniques used were interviews, questionnaires (questionnaire) and literature study. The analytical method used is comparative analysis with unequal treatment. The results showed that there were differences in the nutritional status of children under five in Medan Tembung Subdistrict, Medan city with Silih Nara Takengon Subdistrict. Keywords:, Supplementary Food Program (PMT), Nutritional Status, Household Income. AbstrakPenelitian ini bertujuan untuk memberikan informasi tentang faktor-faktor yang berhubungan dengan kejadian gizi buruk, dan dapat mencegahnya sehingga dapat memberikan masukan pada pemerintah dalam meningkatkan program kesehatan untuk mecapai tujuan yang maksimal agar tidak terjadinya penurunan produktivitas tenaga kerja terhadap khualitas SDM di massa yang akan datang. Penelitian ini merupakan penelitian dasar (basic research). Populasi dalam penelitian ini adalah masyarakat kota Medan kecamatan Medan Tembung dengan sampel 32 keluarga yang mendapatkan Program Pemberian Makanan Tambahan (PMT) dan untuk Takengon Kecamatan Sirih Nara 41 keluarga yang mendapatkan PMT, Metode pengambilan sampel dilakukan dengan metode Purposive sampling (judgmental) dan snowball sampling. Teknik pengumpulan data yang digunakan yaitu wawancara, kuesioner (angket) dan studi pustaka. Metode analisis yang digunakan adalah analisis komparatif dengan perlakuan yang tidak sama. Hasil penelitian menunjukkan bahwa adanya perbedaan status gizi balita di Kecamatan Medan Tembung kota Medan dengan Kecamatan Silih Nara Takengon. Kata kunci: Program Makanan Tambahan (PMT), Status Gizi, Pendapatan Rumah Tangga.
Kualitas Air pada Media Pemeliharaan Benih Ikan Nila dengan Pemberian Pakan Fermentasi Tepung Daun Indigofera
Authors: Thaib Azwar , Nurhayati Nurhayati , Nazlia Suraiya , Hidayat Rahmad
Published: May 2023

Abstrak: Penelitian ini bertujuan untuk mengetahui nilai dan kondisi pengecekan  parameter kualitas air media pemeliharaan benih ikan nila yang diberikan pakan tepung daun Indigofera (Zollingeriana) hasil fermentasi bakteri Bacillus sp. Perlakuan penelitian ini digunakan untuk melihat pengaruh  antara : kontrol (tanpa perlakuan) dan perlakuan (pakan dari penambahan tepung daun Indigofera (Zollingeriana) hasil fermentasi bakteri Bacillus sp. Penelitian ini menggunakan metode eksperimen yang  digunakan untuk menguji pengaruh variabel independent terhadap variable dependent. Analisis yang digunakan adalah Uji T  untuk melihat pengaruh dari pemberian tepung daun indigofera (Zollingeriana) hasil fermentasi bakteri Bacillus sp. terhadap kualitas air. Benih ikan nila yang digunakan berukuran ± 4,0 - 6,0 cm dan bobot  ± 1,43 – 3,33 gram dengan jumlah tebar 10 ekor per wadah dan diisi air dengan volume 9 liter. Perlakuan B2 (Bacillus sp. Fermentasi 48 jam) merupakan perlakuan yang menunjukkan hasil kualitas air optimal untuk benih ikan nila dengan nilai suhu rata-rata 27 0C ± 0,00, pH 8,1 ± 0,05 posfat 10,85 ± 2,76, nitrit 0,13 ± 0,15, nitrat 1,60 ± 1,66 dan total bakteri 2833 ± 1258. Hasil penelitian menunjukkan bahwa parameter pH merupakan variable dependent yang berpengaruh dari pemberian tepung daun indigofera (Zollingeriana) hasil fermentasi bakteri Bacillus sp. terhadap kualitas air.Kata kunci : kualitas air, ikan nila, indigofera, Bacillus sp. Fermentasi.
Dampak Pandemi Covid-19 Terhadap Pelaku Usaha Pembenihan Ikan Nila (Oreochromis Niloticus) Di Aceh Tengah
Authors: Noviana Noviana , Syahputra Faisal , Hasri Iwan
Published: May 2023

Ikan nila memiliki laju pertumbuhan yang cepat dan dapat mencapai bobot tubuh yang jauh lebih besar dengan tingkat produktivitas yang cukup tinggi (Aliyas et al., 2016). Permintaan  pasar ikan nila internasional maupun domestic cukup tinggi (Indah & Dheny,2020). Namun, selama masa pandemi Covid-19 permintaan terhadap benih maupun ikan nila konsumsi mengalami penurunan.Pandemi Covid-19 memberi dampak yang sangat berpengaruh pada pendapatan pelaku usaha budidayaikan di Aceh Tengah. Metode analisis yang digunakan dalam penelitian ini adalah studi kasus dengan melakukan observasi, wawancara, pengisian formulir dan dokumentasi. Usaha pembenihan ikan nila di Aceh Tengah mengalami penurunan pendapatan dalam penjualan. Hal tersebut disebabkan karena adanya perbedaan signifikan pendapatan usaha pembenihan selama Pandemi Covid-19 dari sebelum Pandemi Covid-19. Hasil rata-rata pendapatan  yang diperoleh pelaku usaha pembenihan ikan sebelum Pandemi Covid-19 adalah Rp. 26.232.000 pertahun, tetapi saat Pandemi Covid-19 melanda Indonesia khususnya Kabupaten Aceh Tengah, rata-rata pendapatan menurun menjadi Rp. 23.069.000 pertahun. Hal ini menunjukkan bahwaterjadi penurunan pendapatan saat Pandemi Covid-19 dari sebelum Pandemi Covid-19 sebesar 4,5 % .Hasil perhitungan nilai Revenue Cost Ratio dalam  analisa kelayakan usaha adalah R/C > 1 maka dinyatakan layak melakukan usaha.
Pengaruh Pengkayaan PUN – 11 (Perikanan Unaya 2011) dengan Limbah Sawi terhadap Jumlah Populasi Cacing Sutra (Tubifex sp.)
Authors: Alfiansyah Muhammad Dimas , Thaib Azwar , Nurhayati Nurhayati
Published: May 2023

The success of cultivation is influenced by several aspects, one of which is the natural food in the hatchery or fish larvae phase. One type of natural feed that is suitable for fish larvae is silk worms (Tubifex sp.). But the availability of silk worms is still very limited, so further culture is needed. This study aims to determine the effect of PUN-11 enrichment with mustard greens waste on the growth of silkworm populations. The design used in this study was a comparative design consisting of 2 treatments and 3 replications. The treatments used were P1 (PUN = 11%) and P2 (PUN = 11%) + mustard greens waste (10%). The results showed that the highest population of silk worms (Tubifex sp.) was obtained in treatment P2 (PUN: 11 90% + mustard greens waste 10%), which was 3105 ind/cm2, and the lowest number of silk worms was in treatment P1 (PUN: 11 100%), which is 2868 ind/cm2. The results showed that the T test showed that P2 had a significantly different effect (P > 0.05) on the silkworm population growth.
PENGARUH JOB INSECURITY, BURNOUT DAN ORGANIZATONAL JUSTICE TERHADAP TURNOVER INTENTION PEGAWAI BAGIAN OPERASIONAL PADA SATUAN POLISI PAMONG PRAJA KABUPATEN ROKAN HULU
Authors: Ria Diati Oktariana
Published: May 2023

This study aims to determine the effect of job insecurity, burnout and organizational justice on employee employee turnover intention in the Civil Service Police Unit in RokanHulu Regency. The population in this study were all employees of the Civil Service PoliceOperational unit of Rokan Hulu Regency. The research sample used a purposive samplingtechnique, with a total of 79 people. The independent variables in this study were jobinsecurity (X1), burnout (X2), organizational justice (X3), dependent variable (Y) turnoverintention. Methods of data collection using observation, documentation and questionnaires.Data analysis uses multiple linear regression. Based on partial test results it is known that jobinsecurity, burnout and organizational justice have a significant effect on turnover intention,where the significant value indicates that it is smaller than the significant level of 0.05. Thecalculation of the coefficient of determination shows that the influence of job insecurity,burnout and organizational justice together has a positive effect on turnover intention of97.5%, while the remaining 2.5% is influenced by other variables not examined.
POLA JUAL BELI SECARA KREDIT PRESPEKTIF HUKUM EKONOMI SYARIAH
Authors: Nofrizal
Published: May 2023

Jual beli kredit secara istilah adalah menjual sesuatu dengan pembayaran tertunda, dengan cara memberikan cicilan dalam jumlah tertentu selama waktu tertentu,dan biasanya harganya lebih mahal dibandingkan harga kontan atau tunai. Menurut Hukum Islam, barang yang masih dalam masa cicilan itu tidak bisa diperjual belikan. Dengan melihat latar belakang seperti di atas maka penulis tertarik untuk mengangkat judul penelitian Pola Jual Beli Secara Kredit Prespektif Hukum Ekonomi Syariah. Berdasarkanhasil penelitian, bahwa pada prinsipnya jual beli kredit adalah boleh dalam ekonomi syariah, hanya saja yang diharamkan adalah riba. Jika jual beli kredit tersebut tidak mengandung riba maka halal hukumnya, maka dalam hal ini penulis berkesimpulan bahwa jual beli kredit diperbolehkn dalam syariat Islam dengan beberapa kriteria ataupun pola jual beli kredit yaitu: tidak ada kesepakatan terkait tambahan harga terpisah yang akan didapatkan penjual dari pembeli, apabila pembeli terlambat membayar tidak boleh dipersyaratkan membayar tambahan atas keterlambatan, penjual tidak berhak mengambil kepemilikan barang dari tangan pembeli jika pembayaran tertunda, boleh disepakati memilih cara kontan atau dengan cicilan, dan pembeli Tidak boleh menunda-nunda pembayaran jika ada kemampuan untuk membayar, kecuali dengan alasan yang bisa diterima syar’i.