bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analisis Kemampuan Berpikir Spasial Peserta Didik Sekolah Menengah Atas
Authors: Putri Nurindah Ardiyana , Rayuna Handawati  , Ode Sofyan Hardi  
Published: September 2023

Penelitian ini bertujuan untuk menganalisis kemampuan berpikir spasial peserta didik kelas XI IPS SMA Negeri 78 Jakarta. Populasi penelitian adalah peserta didik kelas XI IPS berjumlah 71 orang sedangkan sampel penelitian menggunakan rumus Slovin dengan taraf error 5% menghasilkan 60 orang. Metode penelitian yang digunakan yaitu deskriptif. Teknik pengumpulan data menggunakan kuesioner tes pilihan ganda melalui Google Form. Hasil penelitian menunjukkan tingkat kemampuan berpikir spasial peserta didik kelas XI IPS SMA Negeri 78 Jakarta terbagi 3 tingkat yaitu level rendah dengan rentang nilai 0 – 33.33 yang diperoleh 23 peserta didik dengan persentase 38%, kemudian level sedang dengan rentang nilai 33.34 – 66.66 yang diperoleh 26 peserta didik dengan persentase 44% dan level tinggi dengan rentang nilai 66.67-100 yang diperoleh 11 peserta didik dengan persentase 18%. Berdasarkan capaian pada kelas-kelas tersebut, tingkat berpikir spasial peserta didik kelas XI IPS SMA Negeri 78 Jakarta berada pada kategori sedang.
Design of Cartesian Type Manipulator for Automatically Capturing Plant Images Inside Greenhouse
Authors: Subrata I Dewa Made , Melania Jacklyn 
Published: September 2023

Scientific activities often require large amounts of digital image data so it is required a device capable of capturing images automatically. This study aims to design a Cartesian-type manipulator with two translational movement for capturing and storing hydroponic plant images automatically and continuously. The manipulator is programmed to capture and store plant images from 15 different positions for seven consecutive days and two cycles a day, namely at 07.00 AM and 17.00 PM. The 2020 solid work simulation yields a maximum von Mises stress of 13,783 MPa, and a minimum safety factor of 6,869. The manipulator was tested using step period treatments of 0.002, 0.003, 0.004 seconds. The best test results is treatment of 0.002 seconds with an average of x-axis and y-axis positional error was 0.380 cm and 0.076 cm, the average translation speed was 8.96 cm/second. The positioning accuracy on the x-axis and y-axis is 98.9% and 99.8%. The movement stability is quite good around the set point with an error range on the x-axis and y-axis is -0.1 to +0.9 cm and -0.065 to 0.15 cm. System response less than 1 ms and energy consumption of 16,132 watt-hours/cycle. The manipulator is able to work according to the design objectives. Keywords: Automatic, Continuous, Cartesian manipulator, Digital image, Hydroponic plants
The Design of Automatic Soil pH Control System on Aloe vera Cultivation with an Integration of Internet of Things (IoT)
Authors: Putri Renny Eka , Darmadi Widi , Cherie Dinah , Puari Aninda Tifani 
Published: September 2023

Machine learning and internet of thing (IoT) would be the best option for monitoring the appropriate soil pH condition. This research aimed on the design an automatic soil pH control system based on IoT for monitoring the cultivation of Aloe vera plants. The Telegram application was occupied as an IoT platform and was connected to a free and easy access application, Node MCU 8266. Furthermore, relay, Arduino Uno and smartphone were occupied in the system. According to the system testing, soil pH sensor readings are close to the actual value as evidenced by the linear regression value or R2 on sensors 1 and 2 which are close to 1. Meanwhile, the total percentage of system performance testing was 93% while the error value for the pH sensors were 0.96 and 1.6% for sensor 1 and sensor 2, respectively. Furthermore, the plant observations showed that the average leaf length of plants with a control system was 24.78 cm while with the manual system was 23.11 cm. From the results of the T test obtained, it was found that the control system applied to Aloe vera cultivation had a significant effect on the growth and development of Aloe vera compared to Aloe vera plants with a manual system. Keywords: Aloe vera, Control system, Internet of things (IoT), Soil pH sensor
Physical Characteristics of Local Light-Brown Waxy Sorghum with Varying Levels of Polishing
Authors: Rahmawati Rahmawati , Pujilestari Shanti , Amelia Julfi Restu 
Published: September 2023

Sorghum contains a high level of tannins and is known to be anti-nutritional and give rise to an astringent flavour, so polishing is needed. This study aimed to characterize local light-brown waxy sorghum from Lamongan due to varying levels of polishing. An experimental procedure with five replications was used. The results showed that the weight of 1000 grains, seed volume, bulk density, and true density one-time polishing was 20.3109±0.3606 g, 0.016±0.000 ml, 0.755±0.015 g/ml, and 1.70±0.02 g/ml, respectively, whereas the two-time polishing was 12.6072±0.6172 g, 0.010±0.000 ml, 0.843±0,011 g/ml, and 1.67±0,02 g/ml, respectively. The sorghum seed size after one-time polishing was length 4.64±0,23 mm, width 2.98±0,17 mm, height 2.38±0,08 mm, and sphericity 69.04%, whereas after two-time polishing it was 2.90±0.12 mm, 2.89±0.09 mm, 1.84±0.11 mm, and 85.82%, respectively. More polishing resulted in a decrease in 1000 seed weight, hardness, volume, porosity, and true density of sorghum. The results also revealed that sorghum was red after one-time polishing and yellow-red after two-time polishing. Tannin content was 8971.59±42.87 mg/L and 915.88±11.64 mg/L, respectively for one-time and two-time polishing. Light-brown waxy sorghum from Lamongan should be polished two-time to be developed into flour and instant sorghum rice. Keywords: Lamongan, Light-Brown Waxy Sorghum, Polishing, Physical characteristics, Tannins
Secondary Metabolites and Antioxidant Activity of Purwoceng (Pimpinella Pruatjan) Root Extracts from Various Hydroponic Planting Techniques
Authors: Batubara Irmanida , Asoka Shadila Fira , Sumarni Eni , Suhardiyanto Herry , Solahudin Mohamad , Widodo Slamet , Supriyanto Supriyanto , Rohaeti Eti , Wahyu Yudiwanti , Laumal Folkes , Erniati Erniati 
Published: September 2023

Purwoceng (Pimpinella pruatjan) is Indonesia’s native herbs that grow in the highlands but its existence is hard to find. The reason is that purwoceng is difficult to cultivate. A controlled factor in cultivation, such as hydroponic types and nutrient concentration, can be used as a solution to this problem. Hydroponic types and nutrient concentration treatments can affect the secondary metabolites and antioxidant activity of the purwoceng root extract produced. This study aimed to determine total phenolic and flavonoid content, as well as antioxidant activity in three different hydroponic systems (nonrecirculating drip, recirculating drip, and nutrient film technique (NFT)) and two nutrient concentrations (1.5‰ and 2.0‰). The combination of recirculating drip with low nutrient concentration was the best treatment to produce an extract with high phenolic and flavonoid content. Purwoceng root extracts from nonrecirculating with high nutrient concentrations produced high antioxidant activity. The characteristics of extracts from recirculating with low nutrient concentrations were similar to those from the nonrecirculating drip. In contrast, extracts from recirculating with high nutrient concentrations were closer to extracts from NFT, proven by principal component and heat map analysis. Antioxidant activity related to total phenolic content, also the presence of betaine and bergapten in purwoceng root extracts. Keywords: Flavonoid content, NFT, Nonrecirculating drip, Phenolic content, Recirculating drip
Application of Wischmeier-Smith, EPIC, M-USLE, and WEPP Methods for Determination of Erodibility Factor (K) of Soil
Authors: Septiyanti Brigitta Ery , Ngadisih Ngadisih , Setyawan Chandra , Susanto Sahid 
Published: September 2023

The purpose of this study was to apply and to evaluate four methods (Wischmeier-Smith, EPIC, M-USLE, and WEPP) for calculating erodibility factor (K) of soil. The field measurement was carried out in a village laid on Southern Mountains of Java, where cocoa-based agrotourism is growing fast in the area. The land use of study area was captured by using drone. The soil samples were taken from land use of shrub, moors, and garden. Then, the samples were analyzed physical and chemical properties. This study obtained the K factor was in the range 0.12 to 0.22 for Wischmeir-Smith, 0.29 to 0.33 for EPIC, 10–3 to 3×10–4 for M-USLE, and 2×10–4 to 0.1 for WEPP. Based on literature (similar study and site, or soil type approach), the K factor obtained from Wischmeier-Smith method was in the range of reference. While other methods, the K factor was higher or lower than benchmark value. The proposed method in this study could be applied to calculate K factors of soil. However, the M-USLE and WEPP methods still have shortcomings in the simulation process of erosion and surface run off rates to obtain the K factor. Keywords: Agrotourism, Drone, Land use, Soil erosion
Physical-Chemical Characteristics and Soil Classification of Lowland Alluvial Land Using Three Soil Classification Systems
Authors: Basuki Basuki , Mandala Marga , Farisi Oria Alit , Sari Vega Kartika , Ristiyana Suci , Utami Ratih Apri 
Published: September 2023

The total area of irrigated rice fields on the slopes of Mount Argopura is 21,420.02 hectares. Soil that experiences flooding will change the characteristics of the physical, chemical, and soil classification properties. The aim of the study was to examine the soil characteristics and classification system of paddy fields on the slopes of Mount Argpura. The research was conducted in July–September 2022 in paddy fields on the slopes of Mount Raung. Soil analysis in the laboratory of the Faculty of Agriculture, University of Jember This research uses a descriptive exploratory method through field surveys. Parameter research on the chemical-physical characteristics of soil and soil classification The research shows that the average rainfall of paddy fields at the foot of Mount Argopura is 2,275 mm per year with a standard deviation of 514 mm and a coefficient of variance of 23%. The morphological horizons of the genesis results in paddy fields are generally Apg, Adg, Bwg, and Cg. The USDA's classification of soil Hydraquentic Humaquepts (pedon 1), Typic Epiaquepts (pedon 2), Aeric Epiaquepts (pedon 3), Indonesian soil classification Gleisol molik (pedon 1), Gleisol eutric (pedon 2), and Gleisol eutric (pedon 3), according to WRB/FAO Molic epireductic Gleisol (Aphihumic) (pedon 1), ochric reductive gleysol (ochric, clayic) (pedon 2), and ochric siltic reductive gleysol (pedon 3). Keywords: Mount Argopura, Rice fields, Tillage, Volcanics
Identification of Leading Commodity Areas in the Agricultural Sector Based on Historical Data and Land Suitability
Authors: Yanti Delvi , Stiyanto Eri , Yanti Nika Rahma , Batubara Choiruddin , Ariyadi Ferdian 
Published: September 2023

In determining the utilization of the area, many government regulations have been made from the Central, Provincial, and Regional levels using a production data approach. However, it is getting different results with the same slice. The purpose of the study is to identify areas and determine priority agricultural commodities for food crops, horticulture, and plantation groups in Pasaman Regency. Analytical techniques used in Pasaman Regency are LQ analysis, shift share (SS) analysis, and field observation with a stakeholder approach. Based on the research, it is found that LQ and SS were able to determine the leading commodities of food crops, horticulture, and plantations in Pasaman Regency. The main food crop is corn, with the central development area in Tigo Nagari District. The superior horticultural crops and their development areas are chilies in Panti District and mangoes in Mapat Tunggul. The main plantation crop is rubber in a central development location in South Rao District. Keywords: Featured commodities; Historical data; Production; Land suitability; Pasaman
The Effect of Growmore and BAP (Benzyl Amino Purine) Concentrations on The Growth of Dendrobium bigiante agrihorti Orchid In-Vitro
Authors: Zanirah Shofiyah , Sutini Sutini , Pribadi Didik Utomo 
Published: September 2023

The increase in production of Dendrobium bigiante agrihorti orchids by in vitro culture is to produce numerous and uniform seedlings. This study aimed to determine the effect of Growmore and BAP concentrations on the growth of orchid plantlets. The experiment consisted of two factors namely Growmore concentration (0; 3; 6; 9 ppm), and BAP concentrations (0; 1; 3; 5 ppm). The factors combination on ½ MS media was repeated 3 times and obtained 48 experimental units. Observation parameters included the percentage of live plantlets, number of roots, number of leaves, plant height (cm), and wet weight of plantlets (g). Results showed that a Growmore concentration of 3 ppm had a significant effect on the number of roots and plant height at 4.36 units and 4.17 cm. BAP concentration of 3 ppm also had a significant effect on the number of roots, plant height, and wet weight of respectively 4.72 units, 3.22 cm, and 0.63 g. A combination of Growmore 3 ppm + BAP 0 ppm produced the largest percentage of live planets at 100% and plant height at 7.37 cm, Growmore 9 ppm + BAP 0 ppm produced the largest number of roots at 6.33 units and Growmore 6 ppm + BAP 3 ppm produced the largest number of leaves at 8.78 strands. Keywords: BAP, Dendrobium bigiante, Growmore.
Application of Micro-Nanobubble Aeration in Spinach (Amaranthus viridis) and Pakchoi (Brassica rapa Chinensis) Cultivation with the Wick System
Authors: Hutabarat Elisabet Mutiara , Alam Hilman Syaeful , Yusuf Asep , Salim Taufik Ibnu , Rusmintia Norberta Yuni 
Published: September 2023

This study aimed to determine the effect of micro-nanobubble generator (MNBG) aeration on the cultivation of spinach (Amaranthus viridis) and pakchoi (Brassica rapa chinensis) hydroponic wicks. The basic principle of this system is that the axis capillary action flows nutrients to the planting medium. There are no moving parts so the nutrients can settle rapidly and the dissolved oxygen content is limited. Micro-nanobubbles (MNB) have the characteristics of a long residence time in the water so that their generation can operate intermittenttly. This study aims to determine the effect of applying (MNBG) with a flow rate of 0.98 L/minute on root length, plant height, and wet weight of spinach and pakchoi plants in wick hydroponics. Cultivation was hold on a free environment. There are three kinds of treatment; without aeration (N0), aeration 15 minutes x 4 for 24 hours (N15), and aeration 30 minutes x 4 for 24 hours (N30). Variations in the types of materials used in this study were spinach and pakchoi, as per treatment was repeat five samples. The study used a Randomized Block Design (RBD). The measurement results compared by the One-Way ANOVA test (5% level), then continued with Duncan's test to determine the difference. The results showed that there was an effect of applying intermittentt MNBG aeration on the average weight and height of the spinach plants, N15 treatment was more effective than the N0 and N30. Intermittentt MNBG aeration did not show a significant difference in the average weight of pakchoi. Keywords: Aeration, Hydroponics, Spinach, Pakchoi, wick
PEMBERIAN FUNGI MIKORIZA ARBUSKULA DAN BIOCHAR TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KEDELAI (Glycine max (L.) Merril) PADA TANAH ULTISOL
Authors: Yunedi Sidik , Perdana Andrian 
Published: September 2023

Soybean is one of the main needs and sources of vegetable protein for Indonesian. National needs of soybean continue to increase in line with the increase of population, but soybean production has not been able to meet national needs. Therefore, efforts need to be made to increase soybean production by utilizing marginal land with using arbuscular mycorrhizal fungi and biochar. The aim of this study was to determine the effect of single factors of arbuscular mycorrhizal fungi (AMF), biochar and interaction of these two factors on the growth and yield of soybean in Ultisol soil. This research was conducted from December until March 2019. The research used 3 x 3 factorial completely randomized design with three replications. The first factor was AMF dosage consist of 3 levels : M0 (0 g per plant), M1 (15 g per plant), M2 (30 g per plant) and the second factor was type of biochar consist of 3 levels : B0 (without biochar), B1 (biochar of rice husk), B2 (biochar of coconut shell). The observation data that obtained were analyzed statistically using analysis of variance (ANOVA). The results of variance analysis were continued by Duncan's multiple range test at level 5%. The results showed that the treatment of AMF improved all growth and yield parameters and the single biochar can not improve all growth and yield parameters. The interaction between AMF and biochar did not improve all parameters of growth and yield of soybean.
PENGARUH KONSENTRASI DAN LAMA PERENDAMAN ASAM SULFAT TERHADAP PERKECAMBAHAN BENIH DELIMA MERAH (Punica granatum L.)
Authors: Elfianis Rita , Putri Nadia , Zam Syukria Ikhsan 
Published: September 2023

The problem of propagation of Punica granatum, was hard seed, and it difficult to germinate. One of the efforts to solve the problem is using H2SO4 as to breakdown of the hard seed. This study aimed to obtain the best concentration of H2SO4 and soaking time, as well as the interaction between H2SO4 concentration and soaking time on the germination of Punica granatum seeds. This study used a completely randomized design (CRD) consisting of 2 factors. The first factor is H2SO4 concentration (0%, 20%, 40%, 60%, and 80%), and the second factor is soaking time (10, 15, and 20 minutes). Parameters observed were germination, germination rate, vigor index, germination height, root length, weight of sprouts, and dry weight of Punica granatum sprouts. The results showed the use of water was the best treatment on germination (85.30%), germination rate (17.37 days), vigor index (2.24%), germination height (7.80 cm), and root length of Punica granatum (7.05 cm), soaking time did not effect the germination of Punica granatum, and the interaction between the use of water and the soaking time 15 minutes was the best treatment on the parameters of fresh weight of sprouts (0.17 g) and dry weight of Punica granatum sprouts (0.13 g).
Strategy for Development of Micro, Small and Medium Enterprises in Gowa Regency, Indonesia
Authors: Akhmad Akhmad , Khalid Idhan , Asdar Asdar 
Published: September 2023

The current development of Gowa Regency is directed at efforts to develop economic activities that can provide welfare to the people of Gowa Regency. This study aims to formulate a strategy for developing small micro enterprises (MSMEs) in Gowa Regency. Data collection was carried out by conducting in-depth interviews with cooperative and MSMEs service staff in Gowa Regency, and MSMEs entrepreneurs in Gowa Regency. Apart from the interviews, a Focus Group Discussion (FGD) was also conducted. The data obtained were then analyzed using descriptive analysis and SWOT analysis. The results of the study show that the strengths possessed by MSMEs in Gowa Regency are, increase public interest in doing business and local government support for MSMEs development. Weaknesses faced include coordination of coaching by each Regional Apparatus Organization (OPD) and the absence of a training center. While opportunities for MSMES development include: the availability of natural resources and the position of Gowa Regency which is directly adjacent to the city of Makassar as the provincial capital. Furthermore, the challenges faced include; more competitive entry of products from Java and abroad, as well as dependence on raw materials from Java and imports. Therefore the MSMEsdevelopment strategy in Gowa Regency can be carried out with a program to create a healthy business climate for MSMESs with the aim of facilitating the establishment of a healthy, economical, and efficient and non-discriminatory business environment for the continuity and improvement of MSMEs performance.
Otoritas Mahkamah Syar'iyah di Aceh dalam Eksekusi Jaminan Fidusia Berdasarkan Putusan Mahkamah Konstitusi Pasca Penegsahan Qanun No 11 Tahun 2018 Lembaga Keuangan Syariah di Aceh
Authors: Putra Afri Hasni 
Published: September 2023

Sengketa Ekonomi Syari’ah yang di Aceh mengalami peningkatan setelah diberlakukan Qanun Aceh No 11 Tahun 2018 tentang Lembaga Keuangan Syariah. Jaminan Fidusia sebagai salah satu jaminan dalam bentuk kontrak perjanjian murabahah juga acap diwarnai perselisihan. Hal ini membuat Mahkamah Syar’iyah secara kompetensi absolut memiliki peran dan tanggung jawab besar dalam mengadili sengketa ekonomi syariah di Aceh. Penelitian ini bertujuan untuk mengetahui kewenangan Makamah Syar’iyah dalam mengadili dan memutuskan berbagai permasalahan sengketa Ekonomi Syariah, faktor-faktor yang menyebabkan nasabah bersengketa, dan bagaimana praktik lembaga keuangan syariah menyita jaminan, baik melalui jalur litigasi dan non litigasi. Metode penelitian ini menggunakan penelitian kualitatif dengan teknik pendekatan studi kasus. Hasil temuan penelitian ini yaitu perlunya upaya pemerintah dan Lembaga Keuangan Syariah dalam melakukan mitigasi lebih cepat terkait dengan potensi sengketa ekonomi syariah di Aceh. Mahkamah Syar’iyah mempunyai otoritas dalam mengeksekusi jaminan fidusia yaitu dengan cara kreditur melakukan pemohonan ke pengadilan setempat.
gazdasági társaság határozatainak bírósági felülvizsgálata a joggyakorlat tükrében
Authors: Barta Judit 
Published: September 2023

A tanulmány a gazdasági társaságok határozatai bírósági felülvizsgálatának törvényi szabályait mutatja be részletesen és rendszerezetten, feldolgozva a bírói gyakorlat gazdag anyagából a fontosabbakat.
A tanulmány ismerteti, hogy milyen esetben kérhető a határozat bírósági felülvizsgálata, kik a peres felek, hogyan alakul a keresetindításra biztosított határidő, milyen határozatot hozhat a bíróság, hozzárendelve a kapcsolódó bírósági döntéseket, majd csoportosítja és bemutatja a tipikus jogsértő határozatokat, végül a jogintézményt elhatárolja a törvényességi felügyelettől.