bluuebunny/crossref_metadata_2025 huggingface dataset:
Agrochemical indicators of sod-podzolic sandy loam soil under the influence of fertilizer mixtures with sewage sludge
Authors: Rabinovich Galina Yurievna , Podolyan Elena Alexandrovna , Zinkovskaya Tatiana Stepanovna , Antsiferova Olga Nikolaevna
Published: February 2022

The paper presents the data of a three–year field experience on the study of the effect of the combined introduction of sewage sludge (WWS) and additional organic substrates (sawdust, peat, straw) in different ratios (1: 1, 1: 2, 1: 3) on the content of basic nutrients sod–podzolic sandy loam soil and the yield of field crops in the crop rotation link: vetch–oat mixture – winter rye – spring barley. For comparative characteristics, the experiment included a variant with ready–made compost based on WWS. The content of the main nutrients in the plow horizon of the soil was in direct proportion to the share of WWS in the composition of the mixture. The most effective influence on the studied parameters was provided by the introduction of WWS with peat in a 1:1 ratio. For 3 years, the content of mineral nitrogen exceeded the effect of compost by 12.5–32.6%, mobile phosphorus – by 7.0–32.9%, exchangeable potassium – by 15.6–18.5%. With the introduction of WWS and peat (1: 1), there was a significant increase in the yield of field crops relative to the option with ready–made compost: vetch–oat mixture – by 37.5%, winter rye – by 9.2%, spring barley – by 10.0%. Other types of fertilizer mixtures with the participation of WWS also had a positive effect on the agrochemical characteristics of the soil and yield in comparison with the control. In the year of direct action, the biomass increase was 30.9–74.5% (vetch–oat mixture), in the first year of aftereffect – 21.5–53.4% (winter rye), in the second year of aftereffect – 56.4–94.8. The studied dose of WWS of 30 t / ha did not cause excessive accumulation of toxic elements in the grain of winter rye and spring barley.
Evaluation of the source material for the selection of Siberian millet in the conditions of the Lower Volga region
Authors: Rodina Tatyana Vladimirovna , Bochkareva Yulia Valerievna , Bagdalova Alia Zyagitovna , Pronudin Kirill Alekseevich , Tambovtseva Nadezhada Rudolfovna
Published: February 2022

Methods for early diagnosis of drought tolerance in leguminous crops, based on the screening of physiological indices of resistance to stress, are of great importance for the acceler-ated selection of drought tolerant soybean lines. On the basis of the Volga NIISS, laboratory exper-iments were carried out to assess the physiological and biochemical parameters of drought re-sistance of seedlings of promising soybean samples under conditions of osmotic stress. As a result of studying the indicators of seed germination in a sucrose solution and morphophysiological   assessment of seedlings of soybean varieties, samples with a high starting growth rate were identified - 156/2014, D-150 and variety Yuzhanka. A strong direct relationship was established between the indices of seed germination on sucrose solution and the index of root length (r = 0.98), between the index of root length and the dynamics of accumulation of free proline under the influence of a stress factor (r = 0.76). According to a comprehensive assessment of the studied samples, it was found that the greatest decrease in growth processes and the smallest accumulation of free proline were noted in samples VNIIOZ-796/11 and Velichava / 2009. Samples D-150, 156/2014 and variety Yu-zhanka were identified as the most drought-resistant.
Physiological aspects of wheat stress resistance
Authors: Manukyan Irina Rafikovna
Published: February 2022

The article presents the results of long-term studies of physiological processes and oxidative stress occurring in wheat plants under the influence of phytopathogens, mineral fertilizers and fungicides. The criteria for the damaging effect of oxidative stress are the activity of the enzyme nitrate reductase and the concentration of TBK-active products. Normally, a mobile balance is maintained between the processes of lipid peroxidation   and the antioxidant system of cell protection. However, under stressful conditions, the ROS content in cells increases rapidly and oxidative stress develops. The resistance of plants to many environmental factors is determined by the ability of the plant to maintain a consistent course of physiological processes, without causing their significant disruption under stress. The relationship between LPO processes and nitrate reductase activity was observed in all wheat varieties. It was found that the varieties reacted differently to the doses of fertilizers. A high negative correlation r = -83 was established between the POL and NRA processes. Many pesticides have additional effects on plants in addition to their main target effect. Fungicides from the triazole class (Byleton, Tilt, Fundazole) were studied. All of them showed antioxidant properties. The strongest antioxidant effect was observed in the fungicide Tilt (propiconazole). The results obtained by us, regarding the close relationship between the processes of POL and NRA, allow us to use fungicides from the triazole class to increase the resistance of plants to various stress factors, activate the antioxidant system in plant cells, and increase productivity. They, as chemical immunizers, are able to simultaneously restrain the development of diseases and affect the physiological and biochemical mechanisms that increase the resistance of plant organisms to phytopathogens and other stress factors.
Research of feed for safety and nutritional value and monitoring of the fullness of feeding
Authors: Kravainis Yuri Yanisovich , Kravayne Raisa Stepanovna , Shkrabak Roman Vladimirovich , Shkrabak Vladimir Stepanovich , Kosyrev Pyotr Ivanovich , Shkrabak Roman Romanovich
Published: February 2022

The article presents the results of studies of feed for safety and nutritional value and control over the inferiority of feeding. The methods of animal feed research for safety and nutritional value are analyzed and the need for their use is justified, since the health of animals largely depends on the quality of feed.
Polymorphism of DNA-microsatellites of Ayrshire cattle of the Komi Republic and the Kirov region
Authors: Nikolaev Semyon Viktorovich
Published: February 2022

The allelofund of Ayrshire cattle of the Komi Republic (n=340) and the Kirov region (n=32) was evaluated using microsatellite DNA markers. It was found that in the studied populations, the TGLA227 locus was the most polymorphic – 9 alleles, and the BM1824 and TGLA126 loci had the least alleles (3-4). The allele of 214 loci INRA23 (q=0.7387) was found with the highest frequency in Ayrshire cattle in the Komi Republic, and 115 loci TGLA126 (q=0.7083) was found among animals of the Kirov region. The average number of alleles per locus in the samples of the Komi Republic was slightly higher (6.6±0.5), compared to the indicator in cows of the Kirov region (6.2±0.4). The number of effective alleles in the Komi population was 3.2±1.0, and in the animals of the Kirov region-3.4±1.0. The actual heterozygosity at all loci in animals of the Komi Republic was lower by 22.4% (P<0.001). The highest homozygosity in cows of the Republic was observed for loci INRA23 (Ho=0.449) and SPS115 (Ho=0.579), and in the sample of animals of the Kirov region for TGLA126 (Ho=0.771) and INRA23 (Ho=0.875). The fixation index in Ayrshire cattle of the Kirov region was -0.273±0.055, which is 6.8 times higher (P <0.001) compared to the Komi population (Fis= -0.040±0.015).
Mathematical model for assessing the shortage of crops from overconsolidation of the soil by the movers of agricultural machines
Authors: Godzhaev Zahid Adygezalovich , Lavrov Aleksandr Vladimirovich , Rusanov Aleksandr Vadimovich , Zagoruiko Mikhail Gennadyevich
Published: February 2022

The researches of impact assessment of agricultural machines’ movers are done in all countries with the use of mobile energy vehicles, which are used for the rolling of the soil with different multiplicity of passes through the fields. Mathematical model is developed taking into account the adding of arable and subsurface layers’ impact on field productivity. It allows one to predict the yield of crops based on impact of agricultural vehicles that perform technological operations, taking into account the width of the track, width of the unit and overlap area. Method of correct determination of indicators of mathematical model is developed. It includes adjustment of the density of the soil layer 0-40 cm and maximum yield value, the exponent of the model. It also includes determination of the coefficients included in it the transformed equation, which corresponds to the mathematical model, after substitution of these indicators in it.  Evaluation of the effectiveness of the pressure of the rear tyres of the beet harvester RKM-6 reduction is performed. The pressure became lower by replacing the tires 21,3-24 on the tires 21,3-26 with data on the change in the soil density in 0-20 and 20-40 cm layers where the RKM-6’s tracks.
Agrotechnological efficiency of cultivation of new varieties of winter wheat in the conditions of the Stavropol Territory
Authors: Oganyan Lusine Robertovna , Shestakova Elena Olegovna , Fedor Vladimirovich
Published: February 2022

In 2 years of research, the most successful combination of high yields and good grain quality indicators was obtained when cultivating winter wheat according to the fallow precursor. Thus, the yield in this version was higher than on wheat after winter wheat by 2.7-3.1 times on the version without fertilizers and, accordingly, by 1.8-1.9 times on a fertilized background. For the entire period of research on both precursors, the application of fertilizers contributed to an increase in the yield of winter wheat grains by 0.8-1.2 t/ha for the precursor black steam and by 1.7-1.8 t/ha for wheat. The positive influence of fertilizers affected not only the yield, but also the content of gluten. On average, their application contributed to an increase in the crude gluten in grain by 1.7% (from 22.5 to 24.2%) in fallow and by 3.6% (from 14.5 to 18.1%) in semifallow land. The largest increase in gluten content in the experience options with fertilization for both predecessors was given by Victoria 11 variety - by 2.8 and 5.9%, the lowest Paritet - by 0.6 and 1.6%.  The analysis of the economic efficiency of the cultivated varieties of winter wheat showed that the most cost-effective is the cultivation of winter wheat by the predecessor of pure steam, regardless of the background of nutrition. It was found out that the introduction of mineral fertilizers contributed to a reduction in the cost of a unit of production for steam by 48.5%,  for the ear predecessor by 32.8%. Analyzing the obtained data on the economic efficiency of winter wheat, it can be noted that the high values of profitability on average for the predecessors and backgrounds of mineral nutrition were obtained by the varieties Sekletia and Tsaritsa, and the lowest – Partner and Paritet.
Comparative analysis of shot wheat and its macromutant forms
Authors: Romanov Boris Vasilievich , Pimonov Konstantin Igorevich , Kozlov Alexandr Aleksandrovich , Chernogor Lydmila Anatolievna , Sorokina Irina Yurievna
Published: February 2022

The main task of wheat production is to obtain high grain yields, with minimal quality losses.   It is distinguished by a number of useful properties for breeding, which was used in the creation of shot winter wheat Sharada. This paper presents the results of a comparative analysis of morphostructural and production characteristics, including grain quality, of the initial Sharada wheat and the macromutant forms isolated from it: "Soft from Sharada" and "Line 1/10- 17", against the background of the indicators of the zoned varieties. It is shown that the selected macromutant forms significantly exceed the original Charade in their morphostructural parameters. At the same time, the "1/10- 17 line" of spherical wheat occupies an intermediate place between the cleaved "Soft from Sharada " of wheat and the original Sharada, both in plant height and in the area of the flag leaf. According to the production characteristics of the "1/10- 17 Line", in particular, according to such an important indicator as the weight of grain from the ear, it is already closer to the "Soft from the Sharada" than to the original Charade and the zoned varieties are rising. The increase in the production indicators of the "1/10- 17 Line" and its proximity to the indicators of the macromutant "Soft from the Sharada" wheat, provides its somewhat larger grains and a large number of them. The production indicators of the grain of the macromutant "1/10- 17 Line" in 2021 significantly exceeded the initial Sharada: the number of grains in the ear - 51.6 pieces; the weight of grain from the ear - 2.16 g; M1000 - 41.36 g. and qualitative indicators: protein content 16.4%; gluten content - 41.2%; IDC - 79 units. At the same time, the increase in the production characteristics of the "1/10- 17 Line" practically did not change the qualitative characteristics of the grain, compared with the original fine-grained Sharada and other varieties of spherical wheat, which makes it and the isolated macromutant "Soft from Sharada" wheat quite valuable starting material for use in breeding practice.
ECONOMIC EFFICIENCY OF CORN HYBRID PRODUCTION DEPENDING ON TILLING METHODS IN THE CONDITIONS OF THE Karachai-Cherkess Republic
Authors: Vlasova Olga Ivanovna , Smakuev Amirkhan Dagirovich , Trubacheva Lyudmila Viktorona , Vaytsekhovskaya Svetlana Sergeevna
Published: February 2022

The article provides data on the calculation of the economic efficiency of cultivation of hybrids corn of domestic and foreign selection - Mashuk 171, Monsanto DKS 3939, AS-201 against the background of two methods of basic tillage, methods of basic tillage - disking PM 5 ? 4 by 10 ... 12 cm and plowing unit EuroDiamant from Lemken for 25 ... 27 cm. The work was carried out in 2016–2018. in the soil and climatic conditions of the Prikubansky region of the Karachay-Cherkess Republic. The soil of the experimental site is a typical carbonate heavy loamy chernozem on loess-like carbonate clays and loams with a humus content of 5%, mobile phosphorus and potassium - 30 mg / kg and 389 mg / kg soil, respectively. The predecessor was corn for grain. The advantage of using plowing as the main method of soil cultivation was revealed, the level of profitability for the studied hybrids was from 111.7 to 53.6%, which is higher than in the variant with disking from 40.2 to 27.1%. As for the hybrids, the greatest economic effect was obtained from the cultivation of foreign breeding hybrids – Monsanto DKS 3939 and AS-201.
Pengaruh Faktor Oseanografi dan Suspensi Sedimen terhadap Pertumbuhan dan Mortalitas Karang Transplantasi (Acropora spp.) di Paiton Probolinggo
Authors: Supriyadi  , Asri Sawiji  , Maisaroh Dian Sari
Published: February 2022

ABSTRAK

 

Transplantasi karang merupakan salah satu upaya dalam memulihkan kondisi terumbu karang yang semakin mengalami degradasi. Transplantasi dapat dilakukan menggunakan berbagai media, salah satunya adalah dengan kanstin FABA dari limbah padat batu bara fly ash bottom ash yang dihasilkan oleh PLTU Paiton. Fragmen karang batu Acropora spp. ditransplantasikan pada dua kedalaman berbeda. Metode penentuan titik pengamatan menggunakan purposive sampling dengan pertimbangan jarak lokasi transplantasi ke lokasi bibit (± 7 meter). Penelitian ini menggunakan metode eksperimental dengan membandingkan dua kondisi penelitian, yaitu transplantasi pada kedalaman 6 m dan 8 m dengan 10 fragmen Acropora formosa dan 10 fragmen Acropora intermedia di setiap kedalaman. Pengamatan dilaksanakan setiap dua minggu meliputi faktor oseanografi dan laju pertumbuhan karang. Hasil penelitian menunjukan bahwa faktor oseanografi di lapangan menunjukan nilai yang sesuai untuk mendukung pertumbuhan karang. Laju sedimentasi tertinggi terdapat di kedalaman 8 m yaitu sebesar 25,57 mg/cm2/hari yang termasuk dalam kategori sedang dan mempengaruhi kelimpahan karang. Pengaruh ini dibuktikan adanya kematian Acropora spp. menjadi death coral algae dengan indeks mortalitas sebesar 0,1. Laju pertumbuhan karang transplantasi pada kedalaman 6 m sebesar 2,2 mm/minggu untuk Acropora formosa dan sebesar 3,1 mm/minggu untuk Acropora intermedia, sedangkan kedalaman 8 m Acropora formosa memiliki laju pertumbuhan sebesar 2,0 mm/minggu dan sebesar 2,4 mm/minggu untuk Acropora intermedia. Faktor oseanografi dengan pengaruh dominan terhadap laju pertumbuhan yaitu salinitas dengan koefisien korelasi 0.853 (hubungan searah) dan kedalaman memiliki pengaruh dengan hubungan terbalik yaitu -0.244. Laju sedimentasi memiliki koefisien korelasi sebesar 0.8 terhadap pertumbuhan dan 0.54 terhadap mortalitas.

Kata Kunci: Transplantasi karang batu, kanstin FABA, indeks mortalitas, PCA.
Study of Ectoparasite Prevalence and Intensity on Mud Crab (Scylla serrata) in Mangrove Area of Wonorejo Surabaya
Authors: Purna Selobing , Munir Misbakhul , Maisaroh Dian Sari
Published: February 2022

This study aims to know various types, prevalence, and intensity of ectoparasite on mud crab (Scylla serrata) in Mangrove Forest Wonorejo, Surabaya.  This study used survey method with random sampling to collect the data.  This study was conducted in November 2020.  Ectoparasite in this study collected by smear method.  In-situ water quality measurement were applied in this study.  Mud crab (Scylla serrata) in this study was obtained from local fisherman that consist of 30 crabs.  There are 3 types of ectoparasite was infected mud crab there are Octolasmis sp. (208 ind), Zoothamnium sp. (93 ind), dan Epistylis sp. (116 ind).  Those ectoparasite was found in mud crabs gills.  The highest prevalence was Octolasmis sp. (70%), Epistylis sp. (30%), Zoothamnium sp. (23%).  The highest intensity was Zoothamnium sp (13,29 ind/crab), Epistylis sp. (12,89 ind/crab), dan Octolasmis sp. (9,90 ind/crab).  Based on Ministerial Decree of Ministry Environment and Forestry No. 1 of 2004 water quality in Wonorejo Mangrove Forest was still optimal for life cycle of mud crab with average of temperature is 31,20°C, Dissolved Oxygen 5,53 mg/l, salinity 11 ppt, and pH 7,40.
Analysis of superior commodities of capture fisheries sector at Kranji Village, Lamongan Regency
Authors: Tri Ayu Rachma Dewi  , Asri Sawiji  , Toha Muslih
Published: February 2022

The fisheries sector is one of the main driver of the national economy. One area of Indonesia that has fishery potential that can be developed is Paciran District, Lamongan Regency, East Java Province. This study was conducted in Kranji Village, which is located in Paciran District and has great pelagic fishery potential. The purpose of this study is to analyze the determination of superior fish commodities from the capture fisheries sector in Kranji Village. The determination of the leading commodities is carried out based on the LQ (Location Quotient) analysis method. The fluctuation of the catch in Kranji Village is affected by various aspects such as natural conditions, the number of fishing gear and government regulations. The fishing season in Kranji Village is divided into: (1) Tuna (Thunnus sp.) season which occurs from October to April with 15 to 20 trips per month; and (2) Goldstripe Sardinella (Sardinella gibbosa) season from May to September with 7 to 12 trips per month. Fishing gear in Kranji Village consists of purse sein, gill nets, cob nets, waring and mini trawlers. This study found that LQ value >1 for 12 fishes species: Bali Sardinella, Goldstripe Sardinella, Torpedo Scad, Longtail Tuna, Eastern Little Tun, Narrow-barred Spanish Mackerel, Giant Fish, Black Pomfret, Dorab Wolf Hearing, Orange-spotted Spinefoot (1.065), Other Fishes (1.057), and Short-bodied Mackerel (1.007). The results indicate that 12 fishes species have a comparative advantage and increasing income and contribution to the economy of Kranji Village.
An analysis of correlation between oceanographic parameters and productivity of trammel net in Prigi, Trenggalek
Authors: Sea Fadlina Hidayatus Syifa'  , Rizqi Abdi Perdanawati  , Fajar Setiawan
Published: February 2022

Prigi, Trenggalek is a potential fishery area located in the southern part of the East Java. Most fishers in Prigi uses trammel net as a capture device. The purpose of this research is to analyze the correlation of oceanographic parameters on the production of trammel net in Prigi’s fishing ground. The data used in this research are temperature, pH, salinity, velocity of currents, depth, and trammel net production during 35 trips. Oceanographic parameters in the fishing ground are temperature ranges from 26°C - 31°C, pH ranges from 7 – 9, salinity ranges from 25‰ - 35‰, current velocity range 0.13 m/s - 0.39 m/s, and the water depth ranges from 10 - 18 m. Variability from trammel net production are long tongue sole (Cynoglossus sp), crab (Portunus sp), endeavour shrimp (Metapenaeus sp), sea snail (Bufonaria sp), common ponyfish (Leiognathus sp), japanese threadfin bream (Nemipterus sp), squid (Loligo sp), and giant tiger prawn (Penaeus sp) with total production 302.2 kg. Correlation between oceanographic parameters and trammel net production are high for the current velocity with correlation value 0.78, and medium for depth and temperature with correlation value are  0.56 and 0.45, respectively. Correlation between salinity and pH with trammel net production are low and very low with correlation value -0.23 and 0.002, respectively.
BERLATIH RAGAM APLIKASI PEMBELAJARAN DARING PADA MASA PANDEMI COVID-19
Authors: Arigiyati Tri Astuti , Kusumaningrum Betty , Kuncoro Krida Singgih , Wijaya Muhammad Tri , Hidayat Taufik
Published: February 2022

The Covid-19 virus spreads very quickly to various countries in the world. Various efforts have been made to break the chain of spreading the Covid-19 virus, one of which is by changing face-to-face learning methods into online learning. The obstacles that are students at the Madania Modern Yatim and Dhu'afa Islamic Boarding School Foundation (YPPMYD) during online learning are the low motivation to learn and the lack of knowledge of online learning resources. The solution to the problems offered by community service activities is training and assisting the installation of online learning application and how to use them. This service activity was carried out in a bold and attractive manner. Online it was done using the Google Meet application, while offline it was conducted at the Madania Bantul Yogyakarta Modern Yatim Islamic Boarding School Foundation (YPPMYD), which was attended by 12 students and 2 companions from students. At the end of the activity, students came to fill out a questionnaire. The results of the questionnaire showed an increase in student learning motivation by 91.07%, an increase in independence by 86.98% and an increase in knowledge of learning applications by 90%.
PELATIHAN PEMBUATAN MEDIA AUDIOVISUAL UNTUK PENINGKATAN KOMPETENSI GURU SDN 1 DOPANG DALAM MENGOPTIMALKAN KEGIATAN BELAJAR DARI RUMAH (BDR)
Authors: Mariyati Yuni , Muhardini Sintayana , Haifaturrahmah Haifaturrahmah , Fujiaturrahman Sukron , Sari Nursina , Hastuti Intan Dwi , Darmayanti Ni Wayan Sri
Published: February 2022

Kurang efektifnya kegiatan pembelajaran pada saat pandemi covid 19, yang saat ini melanda Indonesia bahkan masyarakat dunia, memunculkan masalah baru baik bagi guru maupun siswa, terutama di sekolah SDN 1 Dopang, dari hasil observasi dan wawancara dengan pihak sekolah, sekolah kurang mampu memantau proses belajar anak dari rumah, dan orang tuapun kesulitan mendampingi belajar siswa di rumah, hal ini disebabkan oleh orangtua mempunyai kesibukan masing-masing dan  60% buta huruf. Guru SD sebagai tenaga pendidik profesional yang berperan sebagai fasilitator dalam pembelajaran dituntut untuk dapat membelajarkan muridnya secara maksimal dan berkualitas. Terlebih di masa pandemi covid 19 ini. Agar dapat menjadi fasilitator yang baik guru SD diharapkan dapat membekali diri dengan wawasan dan keterampilan pengembangan desain dan pembuatan media pembelajaran sehingga guru dapat menjalankan perannya dengan baik. Oleh sebab itu, pengabdian ini memberikan pelatihan kepada guru-guru dengan membuat dan mengoperasikan media audiovisual, sehingga memaksimalkan proses pembelajaran yang selama ini dilakukan dengan waktu pertemuan yang terbatas, selain itu penggunaan internet dapat diminimalisir, karena media pembelajaran yang dibuat, dapat disimpan langsung di handphone siswa melalui blutooth pada saat pertemuan tatap muka anatara guru dan siswa atau video dapat dikirm ketika pembelajaran daring, sehingga diharapkan pembelajaran dapat diulang-ulang untuk memahamkan materi kepada siswa. Hasil dari pelatihan ini berupa (1) menambah wawasan bagi Guru-guru SDN 1 Dopang tentang konsep pembelajaran yang aktif, inovatif, kreatif, efektif, dan menyenangkan (paikem); (2) guru-guru SDN 1 Dopang memperoleh keterampilan praktis tentang teknik pembuatan media pembelajaran Audiovisual yang efektif dengan menggunakan Aplikasi inshot  (3) Guru-guru SDN 1 Dopang menhasilkan Produk  media pembelajaran audiovisual berupa video Pembelajaran
Tourism & Hospitality Students’ Perception towards the Use of Robots in Service Organizations: A Qualitative study in India
Authors: KALA Devkant
Published: February 2022

The study examined tourism and hospitality (T&H) students’ perception of the use of service robots in organizations. Using purposive sampling, 80 students of T&H programs were interviewed online, and data was analyzed through thematic analysis. The findings showed that a majority of respondents had shown a favorable perception of robots. While Indian students think that robots may offer several benefits for organizations, T&H entrepreneurs must make provisions to deal with the obstacles associated with robot adoption. The major challenges are employee resistance, technological glitches, services with no human touch, significant operational costs, human-robot interaction, cost of training & repair, and robot-friendly organizational design. They also believe that service organizations should balance the work of employees and robots in such a way where technologies should perform repetitive tasks while employees could deliver warm and personalized services. They prefer humanoid robots in human-touch service industries to humanize services. The study also recommends that educational institutions must incorporate courses on modern technologies into academic programs to meet future challenges and job requirements of the service sector. The findings have several implications, and further research directions are suggested.
TINGKAT KEPUASAN MAHASISWA TERHADAP PENGGUNAAN MEDIA E-LEARNING DI ERA PANDEMI COVID 19
Authors: Al Munawar Ahmad , Fuadaturrahmah Fuadaturrahmah
Published: February 2022

Penelitian ini dilakukan pada Perguruan Tinggi di Sumatera Utara. Penelitian ini bertujuan untuk mengetahui kepauasan mahasiswa dalam penggunaan media e-learning di era pandemi covid 19. Jenis penelitian ini merupakan deskriptif kualitatif dengan metode survey. Populasi dalam penelitian ini adalah seluruh Perguruan Tinggi di Sumatera Utara. Sampel yang digunakan berjumlah 220 orang dengan kriteria telah duduk pada semester 4 dan berstatus mahasiswa aktif. Penarikan sampel dengan teknik random sampling. Teknik pengambilan data menggunakan metode kuesioner tertutup yang terdiri dari 20 pertanyaan. Analisis data dengan analisis deksriptif kualitatif yang disajikan dalam kategori berupa persentase. Hasil analisis data menunjukkan bahwa tingkat kepuasan mahasiswa sudah cukup baik jika ditinjau dari kemampuan dosen dalam menyajikan perkuliahan, pemilihan dan penggunaan media e-learning yang baik dan mudah diakses namun pada tingkat efesiensi pembelajaran masih tergolong cukup.
PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) DENGAN PENGGUNAAN MULTIMEDIA TERHADAP HASIL BELAJAR SISWA MADRASAH ALIYAH
Authors: Fuadaturrahmah Fuadaturrahmah , Simamora Yumira
Published: February 2022

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Problem Based Learning (PBL) dengan bantuan Media animasi computer dan LKS Terhadap Hasil Belajar (Kognitif, Psikomotor, Dan Afektif) Kimia Siswa. Populasi dalam penelitian ini adalah seluruh kelas  XI IPA MA. LAB UIN SU Medan yang terdiri dari 2 kelas dengan total siswa 60 siswa. Adapun sampel yang diambil satu kelas yaitu kelas XI IPA 1 sebanyak 30 siswa/kelas. Instrument yang digunakan untuk mengetahui hasil kognitif adalah test objektif dalam bentuk pilihan ganda sebanyak 23 soal yang sudah valid. Berdasarkan analisis data hasil belajar diperoleh bahwa rata-rata hasil belajar siswa  adalah 37,0 + 8,5 dan setelah diberikan pembelajaran melalui model pembelajaran Problem Based Learning (PBL) dengan bantuan media animasi komputer dan LKS diperoleh hasil belajar siswa sebesar 87,0 + 7,5 denga rata-rata gain sebesar 0.81. diperoleh data kognitif (Post Test : 87,0 + 7,5 dan gain 81 %), data afektif 81 +4,7 sedangkan data psikomotor 86 + 6,8. Peningkatan hasil belajar kimia siswa yang signifikan sebesar 81 %. Hasil pengujian hipotesis diperoleh harga thitung ttabel yaitu 4,38 1,699 dengan taraf signifikasi 5% (α = 0,05) sehingga Ha diterima yang berarti dapat disimpulkan ada pengaruh model pembelajaran Problem Based Learning (PBL) dengan bantuan media animasi komputer dan LKS terhadap hasil belajar kimia siswa.
PENGEMBANGAN RENCANA PELAKSANAAN PEMBELAJARAN METODE JIGSAW MENGGUNAKAN MODUL SAINTIFIK PADA MATERI HUKUM HUKUM DASAR KIMIA DI KELAS X SMA
Authors: Tafonao ND Berijaya , Pohan Lisa Ariyanti , Lubis Hasrita
Published: February 2022

Penelitian ini dilakukan berdasarkan analisis kebutuhan yang menunjukan guru masih kesulitan dalam membuat perangkat pembelajaran. Tujuan penelitian ini adalah menghasilkan suatu produk perangkat pembelajaran berupa RPP dan MODUL berbasis saintifik untuk materi hukum hukum dasar kimia siswa kelas X Sekolah Menengah Atas. Penelitian ini menggunakan metode Research and Development (RD). Langkah-langkah pengembangan penelitian ini (1) analisis kebutuhan, (2) penelitian dan pengumpulan data, (3) pengembangan produk awal, (4) evaluasi, (5) revisi, (6) penyempurnaan produk akhir. Instrumen yang digunakan dalam penelitian ini adalah angket untuk memvalidasi kualitas perangkat pembelajaran berbasis saintifik oleh pakar pembelajaran dan guru kelas X Sekolah Menengah Atas. Perangkat pembelajaran berbasis saintifik ini dilakukan dengan pengujian atas keterpakain RPP yang dibuat oleh peneliti dan dapat digunakan oleh siswa kelas X serta dikembangkan dengan sangat baik dan layaknya digunakan berdasarkan validasi pakar pembelajaran ahli materi dengan skor 83% dan pakar media dengan skor 82%.  Penilaian perangkat pembelajaran berbasis saintifik sangat layak digunakan berdasarkan validasi guru kelas X dengan skor 85%.
PENGARUH GAYA KEPEMIMPINAN DAN KEPUASAN KERJA TERHADAP MOTIVASI KERJA DAN DAMPAKNYA TERHADAP KINERJA KARYAWANDI BPJS KESEHATAN KANTOR CABANG LANGSA
Authors: Bakri Saviqa Intan Maulida
Published: February 2022

The purpose of this study was to obtain empirical evidence of: (1) Style leadership Motivation influential work in “BPJS Kesehatan”Langsa Branch office ; (2) Provision of job satisfaction influence the motivation to work in “BPJS Kesehatan” Langsa Branch office; (3) Style leadership Attainment of an effect on employees performance at “BPJS Kesehatan”Langsa Branch office; (4) Provision of Jab Satisfactioneffect the employees performance at “BPJS Kesehatan”Langsa Branch office; (5) Motivation of Achievement affect the employees performance at “BPJS Kesehatan”Langsa Branch Office. In connection with the research objectives, the population of this study is an employee / employees of “BPJS Kesehatan”Langsa Branch office. Total population employee / employees who actively work in “BPJS Kesehatan”Langsa Branch  Officeis 47 people. Data analysis method withpath analysis. The results showed that: (1) Style leadership positive and significant impact on work motivation in “BPJS Kesehatan” Langsa Branch officeof 0.384 or 38,4%; (2) Provision of Jab Satisfactionpositive and significant impact on work motivation in “BPJS Kesehatan” Langsa Branch officeof 0.584 or 58.4%; (3) Style leadership positive and significant impact on the employees performancein “BPJS Kesehatan” Langsa Branch office of 0.235 or 23.5%; (4) Provision of Jab Satisfaction positive and significant impact on the employees performancein “BPJS Kesehatan” Langsa Branch officeof 0.151 or 15.1%; (5) work motivation is positive and significant effect on the achievement of employees performancein “BPJS Kesehatan” Langsa Branch office of 0.569 or 56.9%.
PENGARUH KEPUASAN KERJA, LINGKUNGAN KERJA, KEPEMIMPINAN DAN STRES KERJA TERHADAP KINERJA PEGAWAI PADA KANTOR WILAYAH DJP SUMATERA UTARA I
Authors: Tanjung Nurdiana
Published: February 2022

The purpose of this study was to determine and analyze the effect of job satisfaction, work environment, leadership and work stress on employee performance in the North Sumatra DGT Regional Office I. The population in this study was 125 North Sumatra DGT Regional Office employees, with 125 sampling techniques using Slovin as many as 95 people. Based on the analysis results obtained value-t Job satisfaction = 2, 680, while t-table with dk 95 (attached) of 1.65, then t count t-table thus partially there is a significant influence between job satisfaction on performance, value t work environment = 2.992, while t-table with dk 95 (attached) is 1.65 then t count ˃t table thus partially there is a significant influence between the work environment on employee performance, t value of Leadership = 2,141 while t-table with dk 95 (attached) of 1.65 then t arithmetic t table thus partially there is a significant influence between Leadership on employee performance, t value of work stress = -1,812 while t-table with dk 95 (attached) of 1.65 then t count ˂ t table thus partially there is no negative effect between work stress on employee performance. F-count value of 14.765 while the value of F-table (attached) with the numerator dk 4 and the denominator dk 90 is equal to 2.48 where F-count F table (14.765 2.48), it can be stated that together (multiple) there is a positive and significant influence on job satisfaction, work environment, leadership, work stress on employee performance.
PENGARUH KOMPETENSI, DISIPLIN DAN MOTIVASI GURU TERHADAP KINERJA GURU DI UNIT PELAKSANA TEKNIS SEKOLAH DASAR ( SD ) NEGERI 050627 PURWOBINANGUN KECAMATAN SEI BINGAI KABUPATEN LANGKAT
Authors: Winata Deddy Surya
Published: February 2022

The problem formulation in this study is: How is competency towards teacher performance? , How is discipline to teacher performance? How does teacher motivation to teacher performance? How does the teacher's competency, discipline and motivation be simultaneous to the teacher's performance, the results of the research gained that there is a variable of competency positive and significant to the performance of Guru with the value of Thitung T table (5,249 1,664) and the value of significance (0.000 0.05). The discipline variables have a positive and significant effect on the master's performance with the value of Thitung T table (2,369 1,664) and the significance value (0.000 0.05). The motivation variable positively and significantly affects the teacher's performance with the value of Thitung T table (4,548 1,664) and value Significance (0.000 0.05) variable competence, discipline and motivation effect positive and significant towards Guru with Fcount value Ftable (29,228 2,712) and significance value (0.000 0.05). The influence of competency variables, discipline and motivation has positive and significant impact on the teacher at 75.80%, while the remaining amount is 24.20% (100%-75.80%) Influenced by other factors not researched.
PENGARUH PENEMPATAN PEGAWAI, FASILITAS DAN KOMITMEN TERHADAP MOTIVASI KERJA PEGAWAI BADAN PENGELOLA KEUANGAN, PENDAPATAN DAN ASET DAERAH KOTA TANJUNGBALAI
Authors: Sirait Herianti , Sitio Dewi , Prawira Muhammad Ichsan
Published: February 2022

The formulation of the problem in this study is whether the placement of employees, facilities, and commitment simultaneously has a positive and significant effect on the work motivation at Regional Financial Management, Income and Assets Agency,  Kota Tanjungbalai. This study aims to determine the effect of employee placement, facilities and commitment to work motivation at Regional Financial Management, Income and Assets Agency, Kota Tanjungbalai. The sample in this study were all employees at Regional Financial Management, Income and Assets Agency, Kota Tanjungbalai, which numbered 46 people. The data analysis technique in this research is Multiple Linear Regression. The results of this study indicate; Employee placement partially has a positive and significant effect on employee motivation; Facilities partially have a positive and significant effect on employee motivation; Commitment partially has a positive and significant effect on employee motivation; Employee placement, facilities and commitment simultaneously have a positive and significant effect on employee motivation.
PENGARUH FASILITAS KERJA, KEDISIPLINAN DAN PENGAWASAN TERHADAP KINERJA PEGAWAI DINAS PERIKANAN KOTA TANJUNGBALAI
Authors: Manurung Elfina , Nura Eko Topan Prihatin , . Nurdin , Metia Tengku Anggi , . Isminingsih
Published: February 2022

The  formulation  of  the  problem  in  this  research  is:  How  do  work  facilities, discipline   and   supervision   influence   the   employees   performance   at   Dinas Perikanan  Kota Tanjungbalai.  This study aims to determine  the effect of work facilities,   discipline   and  supervision   on  employee   performance.   With   total sampling technique, the sample in this study was 41 people. The results showed; Work  facilities   partially   have  a  positive   effect  on  employee   performance; Discipline partially has a positive effect on employee performance; Partial supervision has a positive effect on employee performance; Work facilities, discipline and supervision have a positive and significant effect on employee performance.
PENGARUH PELATIHAN, IKLIM ORGANISASI DAN LINGKUNGAN KERJA TERHADAP PRESTASI KERJA PEGAWAI DINAS KESEHATAN KOTA TANJUNGBALAI
Authors: Sriana Novi , Rahimah Sri Mulyani , Sadikin Agung Hasan , Pendiangan Ferdinan , Sauty Riccy
Published: February 2022

The formulation of the problem in this study are: How the influence of training, organizational climate and work environment on the work performance at Dinas Kesehatan Kota Tanjungbalai. This study aims to determine the effect of training, organizational  climate  and work  environment  on employee  work  performance. With the total sampling technique, the sample in this study was 48 people. The results   showed;   Partial   training   has   a  positive   effect   on   employee   work performance of 4,828; Organizational climate partially has a positive influence on employee  work  performance  of  3.467;  The  work  environment  partially  has  a positive   influence   on   employee   work   performance    of   3,311;   Training, organizational climate and work environment simultaneously have a positive and significant influence on employee work performance of 37.865.
PENGARUH KEPUASAN KERJA, KUALITAS KEHIDUPAN KERJA DAN PRESTASI KERJA TERHADAP KINERJA GURU DI MTS AL JAMIYATUL WASLIYAH TEMBUNG
Authors: Ihsan Muhammad , Harahap Syukril Jamil , . Husniati , . Dayatullah , . Masrida
Published: February 2022

The formulation  in this study is how the influence ofjob  satisfaction,quality of work life and work achievement on teacher performance.  The purpose of this study was to find out and analyze the effect ofjob  satisfaction, quality of work life and work achievement on teacher performance. This  research  is a  descriptive quantitative research.  Data  collection  techniques  are carried out through interviews,  lists of questions and documentation studies.  The sample in this study  was 67 teachers.   Variables are measured on a Likert scale.   Hypothesis testing using multiple linear regression analysis through F test and t test.Simultaneous   test   results  showed   that  job   satisfaction,   work  quality   and   work achievement  had a significant  effect on  teacher performance variables. In part,  job satisfaction has a positive and significant effecton teacher performance,  quality of work life has a positive and significant effecton teacher performance and work achievement has a positive and significant effect on teacher performance.
Reflection on Customer Satisfaction Using the Jaket Application in Terms of Aspects of E-Service Quality, Price, and Brand Awareness
Authors: Sudirman Acai , Halim Fitria , Sinaga Onita Sari , Marpaung Fenny Krisna
Published: February 2022

The need for fast transportation services has caused several businesses to try to create application-based transportation applications according to market demand. To answer this market need, application-based transportation is needed that can implement e-service quality and provides prices following consumer expectations so that it is expected to be able to foster strong brand awareness of the application. The purpose of this study is to analyze the contribution of e-service quality, price, and brand awareness to customer satisfaction. This research was conducted by distributing 180 questionnaires to active users of the Jacket application and only 120 questionnaires that can be used. Tests were carried out with the help of statistical tools in the form of Structural Equation Modeling (SEM) based on Partial Least Square. The results showed that e-service quality has a significant positive effect on customer satisfaction. The results of further research show that price has a positive but not significant effect on customer satisfaction. As for the results of the last study, it was found that brand awareness had a significant positive effect on customer satisfaction.
Pengaruh Kualitas Pelayanan, Harga, dan Citra Merek terhadap Kepuasan Pelanggan Jasa Transportasi Online Grab
Authors: Wulandari Steffany Revina , Susanti Ari
Published: February 2022

This study aims to analyze the effect of service quality, price, and brand image on customer satisfaction with the services of the Gra,b online motorcycle taxi application. The sample in this study was 109 users of transportation services from online motorcycle taxis Grab using the purposive sampling method. Furthermore, the data were analyzed using multiple linear regression to determine the relationship between the variables of service quality, price and brand image on customer satisfaction. The results of research data analysis show that the price variable, brand image partially has a positive and significant effect on customer satisfaction for Grab's online transportation services, while service quality partially has no significant effect on customer satisfaction for Grab's online transportation services.
Destilasi Bioetanol dari Nira Aren dengan Variasi Waktu Pengadukan pada Proses Fermentasi
Authors: Latara Andika , Mustofa Mustofa , Botutihe Sjahril
Published: February 2022

Bioetanol merupakan salah satu jenis energi terbarukan yang dapat dimanfaatkan sebagai bahan bakar kendaraan bermotor menggantikan bensin dan pertalite. Bioetanol umumnya diperoleh dari produk-produk pertanian, baik yang berupa padatan seperti dari ubi-ubian atau produk cair seperti nira nipah atau nira aren. Produksi bioetanol umumnya dilakukan dengan metode destilasi dengan memanfaatkan perbedaan titik didih antara zat yang akan dipisahkan, dalam hal ini etanol dan air. Sebelum proses destilasi, bahan sumber bioetanol dilakukan proses fermentasi dengan bantuan ragi. Tujuan penelitian adalah untuk mengetahui kadar alkohol dari bioetanol yang dihasilkan dengan perbedaan waktu pengadukan selama fermentasi. Produksi bioetanol pada penelitian ini dilakukan melalui serangkaian tahapan kegiatan meliputi pasteurisasi, fermentasi, dan destilasi. Proses fermentasi bioetanol berlangsung selama 3 hari setelah proses pasteurisasi. Selama fermentasi, air nira diaduk dengan dua variasi waktu pengadukan yang berbeda, yaitu 3 menit dan 6 menit setiap 6 jam sekali. Adapun alat dan bahan yang digunakan dalam penelitian ini adalah alat destilasi, kompor gas, pH meter, termometer, alkohol meter, pompa air, air pendingin, nira aren, ragi dan gas LPG. Berdasarkan hasil pengujian diketahui bahwa semakin lama waktu pengadukan saat fermentasi dapat meningkatkan kadar alkohol dari bioetanol yang dihasilkan. Proses pengadukan selama 3 menit menghasilkan bioetanol dengan kadar alkohol 49%, sedangkan peningkatan waktu pengadukan menjadi 6 menit berkontribusi pada peningkatan kadar alkohol menjadi 55%. Dengan demikian, dapat disimpulkan bahwa waktu pengadukan saat fermentasi bioetanol memiliki peran dalam peningkatan kualitas etanol yang dihasilkan.
Membangkitkan Sikap Kebangsaan di Pendidikan Teologi: Dimanakah kita berpijak?
Authors: Wiryadinata Halim
Published: February 2022

Theological education institutions in Indonesia are part of the complex component of this nation in the framework of progress and unity, which have roles and responsibilities in various national issues. Schools of theology, or Christian religion, do not only focus on producing outputs that will develop church services, especially internally, but also in the context of national life, both socially and even politically. Through church discourse and nationalism, this article aims to contribute ideas on how theological educational institutions should take up space to play a role in the locus of nationalism. Keywords: church; nationalism; theological education; theological institution AbstrakInstitusi pendidikan teologi di Indonesia merupakan bagian dari komponen kompleks bangsa ini dalam bingkai kemajukan dan persatuan, yang memiliki peran dan tanggung jawab dalam berbagai persoalan kebangsaan. Sekolah-sekolah teologi, atau keagamaan Kristen, tidak hanya berfokus pada menghasilkan output yang akan mengembangkan pelayanan gereja, terlebih secara internal, melainkan juga dalam konteks kehidupan berbangsa, baik secara sosial, bahkan hingga politis. Melalui diskursus gereja dan nasionalisme, artikel ini bertujuan untuk menyumbangkan pemikiran, bagaimana seharusnya institusi pendidikan teologi mengambil ruang untuk berperan dalam lokus nasionalisme.Kata kunci: gereja; institusi teologi; kebangsaan; pendidikan teologi