bluuebunny/crossref_metadata_2025 huggingface dataset:
PENAMBAHAN MULTI ASAM AMINO PADA MEDIA PEMELIHARAAN LARVA RAJUNGAN Portunus pelagicus UNTUK LAJU PERCEPATAN METAMORFOSIS STADIA ZOEA HINGGA MEGALOPA
Authors: Nurul Mutmainnah  , Zulfiani  , Yusdalifa Ekayanti Yunus  , Faidar  , Muh. Yusri Karim  , Fitri Indah Yani
Published: May 2024

Penambahan multi asam amino pada media pemeliharaan larva rajungan Portunus pelagicus untuk laju percepatan metamorfosis stadia zoea hingga megalopa. Nurul Mutmainnah 0904089501; 2023; Program Studi Budidaya Perairan, Fakultas Pertanian, Peternakan dan Perikanan, Universitas Muhammadiyah Parepare. Penelitian ini bertujuan untuk mengkaji pengaruh penambahan multi asam amino terhadap laju percepatan metamorphosis (perpindahan stadia) larva rajungan P.pelagicus. Pengambilan sampel uji dilakukan setiap hari untuk melihat perkembangan larva atau larva stage indeks. Hewan uji yang digunakan pada penelitan ini ialah larva rajungan stadia zoea-1 yang ditebar dengan kepadatan 100 ekor/L. Wadah yang digunakan pada penelitian ini ialah baskom plastic berwarna hitam dengan volume air 30 liter dan penelitian ini menggunakan  perlakuan dosis asam amino dengan masing-masing 3 ulangan. Keempat dosis tersebut ialah 0, 150, 200 dan 250 ppm. Hasil penelitian ini menunjukkan bahwa dengan pemberian multi asam amino dapat mempercepat laju perpindahan stadia larva rajungan. Laju percepatan metamorphosis tercepat dihasilkan pada dosis perlakuan  250 ppm selama 10 hari dan terlama dihasilkan pada dosis 0 ppm selama 13 hari.
Evektivitas Pengolahan Tanah dan Pengapuran Terhadap Pertumbuhan dan Produksi Kacang Merah (Phaseolus vulgaris L)
Authors: Aminah  , Nuraeni
Published: May 2024

Soil is an essential factor in cultivating plants, which, apart from being a planting medium, also supplies food in the form of nutrients. For successful cultivation, farmers should know the condition of the soil before planting. One of the most important things is the soil acidity level (pH) and the type of soil that will be used for planting. The research aimed to determine the effect of soil processing and liming on the growth and production of red bean plants. The research was carried out in Bontomanai Village, Bungaya District, Gowa Regency, at an altitude of ± 400 meters above sea level from May to December 2023. The research used a Factorial Randomized Block Design with 2 factors. The first factor is soil processing, with 2 treatment levels: No tillage (control) and tillage (Hoeing). The second factor is the lime dose, with 4 levels of treatment, namely without liming (control), 1 ton/ha (0.1 kg/plot), 2 tons/ha (0.2 kg/plot), 3 tons/ha (0 .3 kg/plot). There were 8 combinations, and each treatment combination was repeated 3 times, so that 24 treatment combination units were obtained. Each treatment combination unit used 10 plants and 3 sample plants. The research results showed that tillage had a better effect than no tillage at a weight parameter of 100, namely 41.30 gr. Liming at a dose of 3 tons per hectare had the best effect on plant height parameters, namely 47.68 cm. The interaction between soil processing and liming at a dose of 3 tons/ha gave the best effect on seed weight per planting, 24.93 grams, seed weight per plot of 0.28 kg, and seed production per hectare, namely 2.8 tons/ha.
Kajian Sifat Fisik Tanah pada Lahan Kering Beriklim Kering di Kecamatan Wulla Waijelu Kabupaten Sumba Timur
Authors: Yonce Melyanus Killa  , Melycorianda Hubi Ndapamuri  , Edmilson Umbu Ratu  , Matias Umbu Teul
Published: May 2024

Dry land with a dry climate (LKIK) is suboptimal land that has the potential to be developed. A higher evapotranspiration rate than rainfall characterizes this land, so this land is in a condition of water shortage. One of the areas with LKIK conditions is Wulla Waijelu District, East Sumba Regency, East Nusa Tenggara Province, which is one of the areas with LKIK conditions. This area has not utilized its land potential because the land's condition, especially the soil's physical properties, has yet to be discovered. Therefore, this research was conducted to determine the physical properties of the land so that its use was based on the capabilities of the land. This research was conducted in Wulla Waijelu District in June-August 2023. This research used survey methods and sampling at predetermined points for four land uses. The observation variables are soil texture, permeability, porosity, bulk weight, and field capacity water content. The research results show that the research results provide varying values between land use and observation variables. Soil texture consists of clay, sandy clay, dusty clay, sandy loam, and dusty clay. Permeability criteria are medium, medium to fast, and fast, with soil porosity ranging from 22.8-70.3%. Soil bulk weight is between 0.96-1.6 gr/cm3, with field capacity water content varying from 22.8% to 70.3%.
ANALISIS USAHATANI INTEGRASI ANTARA TANAMAN TERUBUK (SACCHARUM EDULE HASSKARL) DENGAN TERNAK SAPI
Authors: Chaniago Ramadhani
Published: May 2024

Tanaman terubuk selain dikonsumsi sebagai sayuran, terubuk juga mempunyai potensi sebagai pakan yang dapat mengatasi kendala utama yang dihadapi petani dalam meningkatkan produktivitas sapi, sehingga dapat diupayakan untuk menjadi salah satu alternatif dalam meningkatkan kesejahteraan petani dengan melakukan usahatani terpadu. Penelitian ini bertujuan : Menganalisis besar pendapatan dari usaha tani integrasi terubuk dengan usaha ternak sapi di Kecamatan Luwuk Timur Kabupaten Banggai Sulawesi Tengah. Penelitian ini dilaksanakan di Kecamatan Luwuk Timur Kabupaten Banggai Sulawesi Tengah pada bulan maret - mei 2013. Penelitian ini adalah penelitian kuantitatif deskriptif. Jumlah Populasi 30 orang yang terdiri dari 15 petani dan 15 peternak. Data dikumpulkan dengan cara: Untuk Menganalisis pendapatan dari usaha tani integrasi terubuk dengan usaha ternak sapi dengan menggunakan rumus Pd = TR – TC. Hasil penelitian adalah Besar pendapatan dari Integrasi usaha tani terubuk dengan usaha ternak sapi adalah sebesar Rp. 20,605,800/ha/ekor/tahun.
ANALISIS USAHA TANI PADI SAWAH MENGGUNAKAN SISTEM LEGOWO DI KECAMATAN KAMANG MAGEK KABUPATEN AGAM SUMATERA BARAT
Authors: Hafizah Dian
Published: May 2024

Salah satu subsektor pertanian yang dijadikan sebagai fokus untuk dikembangkan oleh negara adalah pada bidang tanaman pangan khususnya beras. Dalam pelaksanaannya untuk meningkatkan produktivitas padi sebagai mana yang direncanakan maka dilaksanakan intensifikasi lahan dengan menerapkan penemuan dari tehnologi baru. Pada penelitian ini pemerintah telah melakukan introdusir tehnologi baru dimana dibudidayakan varietas padi unggulan yang diusahakan dengan pendekatan Pengelolaan Tanaman Terpadu (PTT) dimana program ini bertujuan untuk mengenalkan sistem teknologi tanam yang baru yang dinamakan dengan sistem legowo. Berdasarkan hasil penelitian maka didapatkan hasil perhitungan pendapatan dan keuntungan. Dimana komponen biaya yang dibayarkan terdiri dari pembelian benih, pembelian pupuk, upah TKLK, dan sewa alat (traktor). Sedangkan biaya yang diperhitungkan adalah penyusutan peralatan tetap,  biaya TKDK dan bunga modal. Dari data didapatkan bahwa pendapatan petani yang menerapkan legowo adalah sebesar Rp14.322.183,33/luas lahan/MT dan keuntungan sebesar Rp 13.916.759,33 atau bila dikonversikan per hektar maka didapatkan pendapatan sebesar Rp 23.135.719,44/Ha dan keuntungan sebesar Rp 16.286.159,07/Ha.
ANALISIS KETERSEDIAAN C-ORGANIK DI LAHAN KERING SETELAH DITERAPKAN BERBAGAI MODEL SISTEM PERTANIAN HEDGEROW
Authors: Sukmawati Sukmawati
Published: May 2024

Lahan kering memiliki potensi besar untuk pengembangan pertanian baik tanaman pangan, hortikultura, maupun tanaman perkebunan. Bahan organik merupakan salah satu faktor pembatas yang sangat berperan untuk menambah hara dan sebagai penyangga hara di lahan kering. Tujuan penelitian ini adalah menganalisis  kandungan C-organik tanah di lahan kering setelah diterapakan berbagai model sistem pertanian hedgerow. Pengambilan sampel tanah dilakukan pada 4 sistem pertanian, yaitu: (S1) sistem monokultur rambutan; (S2) sistem pertanian terpadu hedgerow Rambutan – Gamal; (S3) sistem pertanian hedgerow terpadu Rambutan – Gamal – jagung; (S4) Sistem Pertanian hedgerow terpadu Rambutan – jagung – gamal – rumput gajah – ternak kambing dan biogas. Penelitian ini dilaksanakan di Desa Tana Karaeng Kecamatan Manuju Kabupaten Gowa Sulawesi Selatan. Analisis Tanah dilakukan di Laboratorium Kimia dan Kesuburan Tanah Jurusan Ilmu Tanah, Fakultas Pertanian dan Kehutanan Universitas Hasanuddin Makassar. Variabel pengamatan adalah kandungan C-organik tanah. Hasil analisis dinilai secara deskriptif dengan membandingkan hasil uji analisis tanah pada berbagai system pertanian hedgerow. Hasil penelitian menunjukkan perlakuansistem pertanian hedgerow rambutan – jagung – gamal – rumput – ternak dan biogas  dan system pertanian hedgerow rambutan – gamal – jagung memberikan hasil terbaik terhadap kandungan C–organik pada lahan kering.
ANALISIS BERAT DAN KUALITAS KARKAS AYAM BROILER YANG DIBERIKAN JAMU PROBIOTIK DAN TANAMAN HERBAL MELALUI AIR MINUM
Authors: Syam Muliati
Published: May 2024

Penelitian ini menggunakan Rancangan Acak Kelompok  dengan 4 taraf perlakuan. Perlakuan tersebut masing-masing sebagai berikut  (1) Probiotik (Kontrol), (2) Jamu Probiotik lengkap, (3) Jamu Probiotik lengkap + Daun katuk, (4) Jamu Probiotik lengkap + Daun sirih.  Penelitian ini bertujuan untuk mengetahui pengaruh  penggunaan jamu probiotik dan tanaman herbal pada air minum terhadap berat dan kualitas karkas ayam broiler.Analisis keragaman memperlihatkan, pemberian ramuan jamu probiotik dan tanaman herbal memperlihatkan perbedaan yang tidak nyata terhadap semua perlakuan. Berat karkas yang tertinggi diperoleh pada perlakuan pemberian jamu Probiotik lengkap terdiri dengan berat rata-rata 1,25 kg/ekor. Begitu pula dengan kualitas perlemakan sub kutan yang relatif sedikit. Pemberian ramuan jamu probiotik dan tanaman herbal (probiotik lengkap) pada air minum dapat meningkatkan berat dan kualitas karkas ayam broiler melalui zat aditif yang dikandungnya.
PENENTUAN HIGH DENSITY LIPOPROTEIN (HDL) PADA BEBERAPA JENIS IKAN
Authors: Fitriani Nur , Yusuf Muhammad
Published: May 2024

Studi yang dilakukan pada tiga spesies ikan segar yang memiliki peran penting untuk mengembangkan metode cepat dan sederhana untuk ekstraksi. Salah satu metode kerja yang efisien, reprodusibel tinggi dan praktis telah digunakan dalam penelitian ini. Jaringan yang basah dihomogenisasi dengan campuran chloroform dan metanol dalam beberapa proporsi sistem campuran larut, dengan adanya air yang berasal dari jaringan. Pengenceran dengan chloroform dan air memisahkan homogenat kedalam dua lapisan, lapisan chloroform mengandung semua komponen lipid dan lapisan methanol mengandung semua komponen non-lipid. Ekstrak lipida murni didapatkan dengan memisahkan lapisan chloroform. Hasil analisa didapatkan kandungan kolesterol dari tiga jenis ikan yang telah dianalisis masing-masing, ikan cakalang 0,0425%, ikan mas 0,0315%, ikan bandeng 0,02475%. Kadar kolesterol diatas ditentukan dengan aspek spektrofotometer sinar tampak pada panjang gelombang 630 nm.
ANALISIS MARGIN PEMASARAN SAPI BALI PADA KELOMPOK TANI RAMAH LINGKUNGAN DI DESA GALUNG KECAMATAN BARRU KABUPATEN BARRU
Authors: Pabbo Baharuddin
Published: May 2024

Tujuan penelitian ini adalah mengetahui saluran pemasaran Sapi Bali di kelompok tani Ramah Lingkungan Kecamatan Barru Kabupaten Barru, dan mengetahui margin pemasaran pada setiap lembaga pemasaran. Penelitian ini dilaksanakan pada Kelompok Tani Ramah Lingkungan di Kecamatan Barru Kabupaten Barru dengan jumlah sampel responden sebanyak 25 orang. Analisis data yang digunakan adalah analisis deskriptif berdasarkan survei dan pengamatan yang dilakukan, serta dengan menghitung share margin untuk setiap saluran pemasaran. Hasil data menyatakan bahwa Ragam saluran pemasaran sapi pada kelompok tani Ramah Lingkungan di Kabupaten Barru dibagi menjadi tiga, yaitu: Saluran I, Anggota Kelompok ke Pedagang Pengumpul; Saluran II, Anggota Kelompok ke Pedagang Pengecer; dan Saluran III, Anggota Kelompok ke Konsumen. Pola distribusi ternak sapi pada Kelompok Tani Ramah Lingkungan di Kabupaten Barru secara umum masih panjang dan melibatkan banyak pelaku pasar, sehingga mengakibatkan adanya beban biaya pemasaran yang menjadi beban konsumen semakin tinggi. Saluran pemasaran yang panjang menyebabkan meningkatnya margin pemasaran, sehingga harga akhir yang harus dibayar oleh konsumen menjadi lebih tinggi dan bagian harga yang harus diterima oleh peternak sebagai produsen menjadi semakin kecil.
PENGARUH PEMBERIAN PACLOBUTRAZOL TERHADAP INTENSITAS SERANGAN PENGGEREK BUAH KAKAO
Authors: Firmansyah Amanda Patappari , Arwati Sitti
Published: May 2024

Penggerek Buah Kakao (PBK) merupakan salah satu hama penting pada tanaman kakao di Indonesia yang  menyebabkan kehilangan hasil produksi hingga 80%. Penggunaan zat pengatur tumbuh yaitu paclobutrazol dapat digunakan untuk meningkatkan ketebalan sel-sel tanaman. Hal ini dapat dimanfaatkan sebagai pengendalian. Oleh karena itu tujuan dari penelitian ini adalah untuk mengetahui pengaruh pemberian paclobutrazol pada intensitas serangan penggerek buah kakao. Pelaksanaan penelitian dilakukan dengan pemberian zat pengatur tumbuh dengan bahan aktif paclobutrazol pada buah kakao dengan konsentrasi yaitu kontrol, 10 ppm, 30 ppm, 50 ppm, dan 70 ppm. Evaluasi dilakukan dengan menghitung jumlah buah terserang untuk mengetahui besarnya tingkat serangan melalui metode Rancangan Acak Kelompok (RAK) yang dilanjutkan dengan uji BNT. Intensitas serangan PBK yang paling rendah terlihat pada perlakuan 70 ppm dengan rata-rata buah terserang sebesar 41.33 buah, diikuti perlakuan 50 ppm sebesar 55.33 buah, perlakuan 30 ppm sebesar 65.33 buah, 10 ppm sebesar 82 buah, dan kontrol sebesar 95.33 buah.
PERILAKU PETERNAK TENTANG PEMBUATAN RANSUM BERBASIS BAHAN LOKAL DI GAPOKTAN URIPMULYO DESA PAREREJO PURWODADI PASURUAN
Authors: Solihin Cecep , Windari Wahyu , Kristanti Novita Dewi
Published: May 2024

Uripmulyo Gapoktan is an association for farmer groups in Parerejo Village, which consists of Uripmulyo I, Uripmulyo II, Uripmulyo III, Mulyo Tani, Suka Makmur and Tani Makmur Farmers groups. This farmer group has a population of 464 cattles. In addition, in the Parerejo Village, there was a tofu factory and rice mill industry, whose waste is not utilized as a beef cattle ration. Farmers only provide forage feed, so it is necessary to carry out counseling activities on the manufacture of rations based on local ingredients, in the form of materials that were easily found by local farmers or potential feed ingredients in Parerejo Village. These feed ingredients include grass, tofu dregs, and rice bran and additional premixes. This study was conducted on 50 beef cattle breeders who were incorporated into the Uripmulyo Gapoktan taken randomly. The aim was to find out the knowledge, attitudes, and skills of breeders towards making rations based on local ingredients for beef cattle feed in Gapoktan Uripmulyo, Parerejo Village, Purwodadi District, Pasuruan Regency. The method used in this study includes four stages, namely (1) counseling in class, (2) counseling with demonstration methods, (3) counseling practice / out class (4) evaluation. The extension media used were (1) powerpoint slides, (2) folders, (3) videos and (4) real objects. Analysis techniques used in behavioral measurement include, (1) knowledge using interval techniques, (2) attitude measurement using T-score techniques and (3) observational skills measurements and analyzed using interval techniques. The results of the implementation showed that the level of knowledge of farmers was 76% in the good category, attitudes of farmers showed 74% received, and the level of skills of farmers showed 86% were very skilled at the material presented, about how to make rations based on local ingredients for beef cattle feed.
EPIDEMIOLOGI PENYAKIT LAYU BAKTERI DAN PERKEMBANGAN KOMPLEKS SPESIES Ralstonia solanacearum
Authors: Setiawan Andree Wijaya
Published: May 2024

Bacterial wilt is one of the most important diseases due to the difficulty of its control and its effect on the production of many economically valuable plants throughout the world. Ralstonia solanacearum bacteria which later will be better known as Ralstonia solanacearum species complex has a very wide range of host plants. More than 400 species of plants from 50 botanical families, including important plants that are cultivated in Indonesia such as potatoes, tomatoes, eggplants, tobacco, cloves and bananas. This review discusses the epidemiology of diseases caused by R. solanacearum, development of R. solanacearum species complex and mechanisms of action in disease management based on chemical, biological, cultivation and physical methods.
IDENTIFIKASI ALAT PENANGKAPAN IKAN RAMAH LINGKUNGAN BERBASIS CCRF DI KABUPATEN PIDIE, ACEH
Authors: Chaliluddin Makwiyah A. , Ikram Muhammad , Rianjuanda Djamani
Published: May 2024

Pidie district is one of the producers of capture fisheries in Aceh Province with a number of fishermen reaching 1,019. Sea fishing activities are open access causing concern to the stock of fish resources in the waters. Many fishing operations that use fishing gear that are not environmentally friendly if not managed properly will cause fish resources to decline or overfishing. This study aims to identified environmentally friendly fishing tools based on the Code of Conduct for Responsible Fisheries (CCRF) in Pidie District. This research was conducted in March 2019 in the waters of Pidie District. Data collection was done by interview and direct observation in the field. Analysis of the environmental friendliness of fishing gear based on weighting the score with the Analysis Hiercy Process (AHP) method. The results showed that the fishing gear included in the category of very environmentally friendly, namely; handline, longline, gillnet, and purse seine. While the fishing gear category is not environmentally friendly, namely; Modified beach seine and beach seine.
PERSENTASE BONELESS, TULANG, DAN RASIO DAGING – TULANG AYAM BROILER PADA BERBAGAI BOBOT POTONG
Authors: Patriani Peni , Hafid Harapin
Published: May 2024

The research aims to determine the effect of the range of cut weight on the percentage of boneless chicken meat, using a Completely Randomized Design. Research material using 14 broilers were purchased from farmers by selecting chickens randomly according to the desired body weight range. The treatment were in the form of a classification of the weight range of cut, 851-1,850 g, 1,051-1,250 g, 1,251-1,450 g and 1,451-1,700 g. The observed variables were cutting weight, carcass weight percentage, boneless percentage, meat percentage, and bone ratio. The results showed that broiler cutting weight had a very significant effect (P<0.01) on the percentage of boneless. The greater of the weight of the cut means the greater percentage of boneless produced. Broiler cut weight did not have a significant effect (P>0.05) on the percentage of bone and bone meat ratio. It was concluded that the greater weight of the broiler cut showed the increase in the percentage of boneless chicken greater. This indicates the increased content of boneless meat produced.
Identifikasi Potensi dan Pemanfaatan Tumbuhan Obat di Hutan Produksi Kecamatan Sinoa Kabupaten Bantaeng Sulawesi Selatan
Authors: Latifah Husnah , Jusuf Yusran , Paembonan Samuel A. , Hasanuddin H , Sultan S
Published: May 2024

The purpose of this study was to determine the potential and benefits of medicinal plants found in production forests in Sinoa District, Bantaeng Regency. The type of data collected was quantitative and qualitative data, including types and quantities of medicinal plants, local names, parts of plants used, and types of diseases that can be treated with these plants. Vegetation analysis results showed that the diversity of medicinal plants as many as 13 species from 10 families. Vegetation which has the greatest potential at the level of the tree namely Pinus (Pinus mercusii) with a potential of 194, at the pole level was Avocado (Persea gratissima) with a potential of 100, at the sapling level namely Coffee (Coffea arabica) with a potential of 640, and at the seedling level ie Bandotan (Ageratum conyzoides) with the greatest potential is 17500. Plant parts that utilized were leaves, roots, fruits, seeds, sap, and bark. All of these parts used to treat diseases such as shortness of breath, headache, toothache, cough, diarrhea, fever, malaria, high blood pressure, diabetes, suppurating ulcers, beriberi, immune system, festering skin inflammation, and increasing brain intelligence. Besides that it can treat kidney stones, wounds, sore throat, eye medication, dry the wound, neutralize the poison boils, canker sores, bruises, swelling, and sprains.
Peningkatan Daya Kecambah dan Pertumbuhan Benih Kayu Manis (Cinnamomum burmanii) dengan Berbagai Media Tumbuh
Authors: Suryani Erma , Idris Herwita , Melati M
Published: May 2024

Seeding media have a large role in helping to accelerate germination and seed will have a different response to certain media. Seeding media is needed so that the potential viability of seeds can be optimal. Media in nurseries have a large role in helping accelerate budding. The study was conducted in the greenhouse of the Laing Solok Experimental Garden, West Sumatra. The research aimed to know the composition of the media that can improve the viability of cinnamon (Cinnamomum burmanii) seeds. The study was arranged in a completely randomized design with 7 treatments: wastes ash distillation of citronella, burnt husk, sawdust, soil + wastes ash distillation citronella, ground + burnt husk, sand, and soil. All experiment treatment were repeated 5 times. Each treatment was used 30 seeds of cinnamon with a spacing of 5 x 5 cm. The parameters observed included percentage of growth, vegetative growth (seed height, number of leaves, leaf length and leaf width), root length, number of roots, biomass (wet and dry weight of seeds, root wet and dry weight). The results showed that the best growing media for recalcitrant cinnamon seeds were sawdust and soil + ash of citronella refining waste. The growth percentage of the two media were 76.00% and 64.00% respectively, the best vegetative growth, with the wet weight of the seeds respectively 0.74 g and 0.71 g, root wet weight 0.19 and 0.13 g, seed dry weight of 0.25 and 0.23 g, root dry weight of 0.11 and 0.06 g. The best total leaf chlorophill content in both types of media was 0.026 and 0.034.
Respon Pertumbuhan Bibit Lada (Piper nigrum l.) Terhadap Komposisi Media Tanam dan Konsentrasi Pupuk Organik Cair
Authors: Syam Netty
Published: May 2024

Availability of pepper seeds continuously, good quality, and free from stem rot disease is still limited at the farmer level. This study aims to determine the composition of the planting medium and the best concentration of organic fertilizers in spurring pepper seeds' growth. The study was compiled using a two-factor factorial design based on a randomized block design. The first factor is the media's composition for planting sand, compost, and soil in 5 levels, namely 1:0:1, 1:1:0, 1:1:1, 1:2:1, and 2:1:1. The second factor is applying liquid organic fertilizer (POC), made from forage. It consists of three levels of concentration, namely POC 10 ml, 20 ml, and without POC (control). Fifteen treatment combinations were repeated three times. The results showed that the combination of POC and the composition of the planting medium could stimulate pepper seedlings' growth. POC 20 ml/liter and the composition of the media of sand + compost + soil 1:1:0 and 1:1:1 resulted in the best shoot lengths, namely 13.91 cm and 13.23 cm, respectively. The planting medium of sand + compost + soil with a composition of 1:1:1 was able to spur the emergence time of pepper cuttings faster, namely 19.13 days after planting, and the number of leaves was higher, namely 5.40.
Kualitas Organoleptik dan Mikrobiologis Daging Domba Menggunakan Ekstrak Pangium Edule Terhadap Masa Simpan
Authors: Patriani Peni , Hafid Harapin , Wahyuni Tri Hesti , Mirwandhono Edhy
Published: May 2024

Pangium edule or keluwak is a local spice that can extend the shelf life of livestock products because it contains antimicrobial compounds. This study aimed to determine the effect of marination using Pangium edule on the microbiological and organoleptic quality of lamb. This study used a factorial completely randomized design to treat Pangium edule concentration and shelf life of 3 replications each. Lamb meat was marinated using Pangium edule extract 0%, 3%, 6%, and 9%, then stored at 12 hours, 24 hours, and 36 hours at room temperature. The results showed that the longer the meat's shelf life, the microbial growth also increased, but marination using Pangium edule resulted in lower microbial growth than without treatment. The treatment of lamb marination with 3% and 6% Pangium edule extract showed the lowest microbes and was very significantly different from lamb without treatment for 36 hours. Its means that the antibacterial compound in Pangium edule can inhibit microbial growth and is still by the standards set by SNI compared to the control. Marination using Pangium edule extract during the shelf life also significantly affected the panelists' acceptance level, namely aroma, taste, tenderness, and color. Organoleptic scores, namely smell, taste, tenderness, and color at 6% to 9% with a shelf life of 36 hours, are still in a fairly good range. Marination using Pangium edule 6% can maintain the microbiological and organoleptic lamb quality for 36 hours.
Producción y caracterización de compost derivado de residuos sólidos orgánicos urbanos
Authors:   Universidad Nacional Agraria de la Selva, Aguirre-Illatopa Janyra Grehisy , Florida-Rofner Nelino ,   Universidad Nacional Agraria de la Selva, Ríos-Velasquez Emilio Anthony ,   Universidad Nacional Agraria de la Selva, Lévano-Crisóstomo José Dolores ,   Universidad Nacional Agraria de la Selva
Published: May 2024

Perú generó 8.215.355 t de residuos sólidos municipales en el 2021; de este, 57,64 % corresponde a residuos orgánicos (RO) y 61,28 % son dispuestos en rellenos sanitarios con múltiples deficiencias de gestión, lo que exige buscar alternativas para tratar de manera segura los RO. Frente a esta situación, el compostaje permite la biotransformación, la reducción y la obtención de biofertilizantes, que se pueden aplicar como sustrato o enmienda. El objetivo de la investigación fue evaluar indicadores de procesamiento y calidad de compost derivado de residuos sólidos orgánicos urbanos, en Leoncio Prado, región Huánuco, Perú. Se evaluaron los tipos de residuos, basados en la normativa peruana para caracterización de residuos, los indicadores del proceso (temperatura y pH), la caracterización fisicoquímica y calidad en base a las normas internacionales. Los resultados muestran diferencia significativa para pH, nitrógeno, calcio, potasio, cobre y zinc; contrariamente, la materia orgánica, el % de cenizas, la conductividad eléctrica, el sodio y el fósforo no mostraron diferencias, siendo lo más destacado los altos niveles de pH, además, la calidad del compost es de “Clase B”, según la norma chilena 2880. Los compost producidos son de calidad media y se recomienda su uso como sustrato o enmienda en la agricultura, previo tratamiento para corregir los altos niveles de pH.
Computational Thinking Skills in Understanding The Limit of Algebraic Functions
Authors: Lisa Lisa , Hasratuddin Hasratuddin , Sinaga Bornok , Napitupulu E. Elvis , Panjaitan Asmin
Published: May 2024

The purpose of this study was to determine the evaluation of computational thinking ability in understanding the limits of algebraic functions for students majoring in Tadris mathematics at Lhokseumawe State Islamic Institute. The research subjects were 1st semester students, totaling 6 students. Data collection techniques in this study used computational thinking ability tests and interviews, and then the data were analyzed based on computational thinking indicators, namely decomposition, pattern recognition, algorithm thinking, generalization, and abstraction. The results obtained from high computational thinking ability indicators that can be completed perfectly are decomposition, pattern recognition, algorithm thinking, and generalization/abtraction. With moderate computational thinking ability, students have been able to solve problems perfectly for indicators of decomposition and pattern recognition, but for indicators of thinking algorithms and generalizations or abstractions, they are still less precise. Low computational thinking ability has been able to measure decomposition indicators, but for pattern recognition indicators, thinking algorithms are still less precise in solving, while generalization and abstraction indicators do not answer.
Pengembangan Model Pembelajaran Integratif Berbasis Nilai Moderasi Beragama pada Pembelajaran PAI dan Budi Pekerti di SMA
Authors: Fadriati Fadriati , Putri Yuliana , Yoma Abdul Razzak , Rohayu Rinda
Published: May 2024

This research is motivated by global progress which has a positive impact on modernization in various aspects of life. To make students can understand and apply the values of religious moderation in everyday life, this research aims to integrate these values into the Islamic religious education learning model. Through teaching and learning activities in classroom, this approach can help students develop an understanding of religious moderation in everyday life. Therefore, this research needs to be carried out to determine the validity and practicality of the Integrative Learning Model Based on Religious Moderation Values in Islamic Education and Character Learning in High School. This research used ADDIE as the development model with 5 stages namely Analysis, Design, Development, Implementation and Evaluation. The data sources were practicality and validity sheet, interview and documentation study. The research results showed that the validity of the integrative learning model book was 0.88 in highly valid category and the practicality of the integrative learning model book was 0.85 in highly valid category. The results of this research described that a learning model book that combines the values of religious moderation in Islamic Education and Character Learning subjects is very suitable to be used in learning process.
Teacher Perspective and Performance in Curriculum Prototype Implementation through the Development of Innovative Project-Based Learning Modules
Authors: Effendi Moh. Mahfud , Ummah Siti Khoiruli , Cahyono Hendarto
Published: May 2024

Banyak sekolah yang belum memahami dan siap menerapkan kurikulum prototipe dan belum pernah menerapkan pembelajaran berbasis proyek. Tujuan penelitian ini difokuskan pada cara pandang dan kinerja guru matematika dalam mempersiapkan implementasi kurikulum prototipe. Penelitian ini menggunakan metode penelitian kualitatif dengan data yang diperoleh dari observasi dan wawancara. Selanjutnya, analisis data dilakukan dengan menunjukkan bukti kinerja dan naskah wawancara tentang perspektif guru untuk meninjau kesesuaiannya dengan penelitian sebelumnya. Hasil penelitian menunjukkan bahwa kinerja guru matematika selama penyusunan modul pembelajaran berbasis proyek adalah kesulitan dalam menyusun topik proyek dan mengoperasikan aplikasi komputer sehingga tampilan modul menjadi menarik. Perspektif guru terkait dengan kurikulum prototipe adalah adanya tantangan dalam mengembangkan modul pembelajaran berbasis proyek dimana proyek tersebut merupakan integrasi dari beberapa mata pelajaran. Penyusunan soal jenis AKM juga dinilai sulit dan produk penilaian dengan soal jenis AKM yang dihasilkan guru antara lain soal pilihan ganda, menjodohkan, esai pendek dan esai lengkap.
 
Many schools do not understand, are ready to implement the curriculum prototype, and have never implemented project-based learning. This research aims to focus on the perspective and performance of mathematics teachers in preparing the curriculum prototype implementation. This study uses qualitative research methods with data obtained from observation and interviews. Furthermore, data analysis was carried out by showing evidence of performance and interview scripts about the teacher's perspective to review its suitability with previous research. The results showed that the mathematics teacher's performance during the preparation of project-based learning modules was the difficulty in compiling project topics and operating computer applications so that the module's appearance became attractive. The teacher's perspective on the curriculum prototype is that there are challenges in developing project-based learning modules where the project integrates several subjects. The preparation of AKM-type questions was also considered problematic, and the assessment products with AKM-type questions produced by the teacher included multiple choice questions, matchmaking, short essays, and complete essays.
Ground state solutions for the Hamilton–Choquard elliptic system with critical exponential growth
Authors: Guan Minlan , Lai Lizhen , Liu Boxue , Qin Dongdong
Published: May 2024

In this paper, we study the following Hamilton–Choquard type elliptic system: − Δ u + u = ( I α ∗ F ( v ) ) f ( v ) , x ∈ R 2 , − Δ v + v = ( I β ∗ F ( u ) ) f ( u ) , x ∈ R 2 , where I α and I β are Riesz potentials, f : R → R possessing critical exponential growth at infinity and F ( t ) = ∫ 0 t f ( s ) d s. Without the classic Ambrosetti–Rabinowitz condition and strictly monotonic condition on f, we will investigate the existence of ground state solution for the above system. The strongly indefinite characteristic of the system, combined with the convolution terms and critical exponential growth, makes such problem interesting and challenging to study. With the help of a proper auxiliary system, we employ an approximation scheme and the non-Nehari manifold method to control the minimax levels by a fine threshold, and succeed in restoring the compactness for the critical problem. Existence of a ground state solution is finally established by the concentration compactness argument and some detailed estimates.
Lumbar multifidus layers stiffness at L5-S1 level in prone and sitting posture measured by shear wave elastography
Authors: Bastos de Oliveira Viviane , Albuquerque Brandão Maria Clara , Coelho de Albuquerque Pereira Wagner , Fernandes de Oliveira Liliam
Published: May 2024

BACKGROUND: Multifidus is an important lumbar muscle with distinct superficial and deep fibers responsible for torque production and stabilization, respectively. Its mechanical properties change when transitioning from lying to sitting positions, necessitating enhanced stability. It holds crucial clinical relevance to assess these layers separately, especially in the sitting posture, which demands increased neuromuscular control compared to the prone position. OBJECTIVE: To compare lumbar multifidus stiffness in lying versus sitting postures, analyzing both superficial and deep layers. METHODS: Supersonic Shear Imaging captured elastographic images from 26 asymptomatic volunteers in prone and seated positions. RESULTS: Left multifidus shear modulus in lying: 5.98 ± 1.80/7.96 ± 1.59 kPa (deep/superficial) and sitting: 12.58 ± 4.22/16.04 ± 6.65 kPa. Right side lying: 6.08 ± 1.97/7.80 ± 1.76 kPa and sitting: 13.25 ± 4.61/17.95 ± 7.12 kPa. No side differences (lying p= 0.99, sitting p= 0.43). However, significant inter-postural differences occurred. CONCLUSION: Lumbar multifidus exhibits increased stiffness in sitting, both layers affected, with superior stiffness in superficial versus deep fibers. Applying these findings could enhance assessing multifidus stiffness changes, for classifying tension-induced low back pain stages.
Study of whey protein on muscle mass and functional rehabilitation in postoperative total knee arthroplasty patients
Authors: Li Mengshi , Shi Qiongfang , Che Xinle , Du Xingyan , Wang Dongming , Song Yufeng
Published: May 2024

BACKGROUND: Patients who underwent total knee arthroplasty (TKA) often experience muscle loss due to pain and limited mobility. Nutritional supplementation and rehabilitation may positively affect the decline in muscle function. OBJECTIVE: The purpose of this study is to evaluate whether whey protein intervention, in addition to conventional rehabilitation training, is beneficial in improving muscle function and quality of life in patients after TKA. METHODS: 72 patients who met the criteria were selected for this randomized controlled study. For the experimental group, whey protein was used as a daily supplement for 12 weeks, while the control group was given a placebo, during which both groups received conventional rehabilitation training. Muscle strength and each of the secondary observables needed to be measured and statistically analyzed preoperatively and at 4, 8, and 12 weeks post-intervention. RESULTS: In total, 62 subjects completed the study: 32 in the experimental group and 30 in the control group. Both groups showed significant improvement in muscle strength, VAS, ROM, AKS and leg circumference after 12 weeks of treatment. Compared to the control group, patients in the experimental group showed significant improvement in muscle strength, VAS, ROM, AKS and leg circumference (p= 0.001, p= 0.002, p= 0.001, p= 0.001, p= 0.001, respectively) after 12 weeks of treatment. CONCLUSION: The 12-week intervention of whey protein nutritional supplement showed significant improvement in muscle mass and function among post-TKA patients besides aiding with conventional rehabilitation exercise.
Closeness and Vertex Residual Closeness of Harary Graphs
Authors: Golpek Hande Tuncel , Aytac Aysun
Published: May 2024

Analysis of a network in terms of vulnerability is one of the most significant problems. Graph theory serves as a valuable tool for solving complex network problems, and there exist numerous graph-theoretic parameters to analyze the system’s stability. Among these parameters, the closeness parameter stands out as one of the most commonly used vulnerability metrics. Its definition has evolved to enhance the ease of formulation and applicability to disconnected structures. Furthermore, based on the closeness parameter, vertex residual closeness, which is a newer and more sensitive parameter compared to other existing parameters, has been introduced as a new graph vulnerability index by Dangalchev. In this study, the outcomes of the closeness and vertex residual closeness parameters in Harary Graphs have been examined. Harary Graphs are well-known constructs that are distinguished by having n vertices that are k-connected with the least possible number of edges.
LuckyMera: a modular AI framework for building hybrid NetHack agents
Authors: Quarantiello Luigi , Marzeddu Simone , Guzzi Antonio , Lomonaco Vincenzo
Published: May 2024

In the last few decades we have witnessed a significant development in Artificial Intelligence (AI) thanks to the availability of a variety of testbeds, mostly based on simulated environments and video games. Among those, roguelike games offer a very good trade-off in terms of complexity of the environment and computational costs, which makes them perfectly suited to test AI agents generalization capabilities. In this work, we present LuckyMera, a flexible, modular, extensible and configurable AI framework built around NetHack, a popular terminal-based, single-player roguelike video game. This library is aimed at simplifying and speeding up the development of AI agents capable of successfully playing the game and offering a high-level interface for designing game strategies. LuckyMera comes with a set of off-the-shelf symbolic and neural modules (called "skills"): these modules can be either hard-coded behaviors, or neural Reinforcement Learning approaches, with the possibility of creating compositional hybrid solutions. Additionally, LuckyMera comes with a set of utility features to save its experiences in the form of trajectories for further analysis and to use them as datasets to train neural modules, with a direct interface to the NetHack Learning Environment and MiniHack. Through an empirical evaluation we validate our skills implementation and propose a strong baseline agent that can reach state-of-the-art performances in the complete NetHack game. LuckyMera is open-source and available at https://github.com/Pervasive-AI-Lab/LuckyMera .
What drives the adoption of agile government? Insights from Austria, Germany, and Switzerland
Authors: Hegele Yvonne , Stoll Aline
Published: May 2024

Agile approaches are increasingly being used in the public sector. What is driving the adoption of agile ways of working, however, remains unclear. In this paper we ask the following two questions: Which agile approaches are being used in public sector organizations? Under which circumstances do public sector organizations use which agile practices? To analyze these questions, we conducted a standardized survey among over 450 civil servants in Austria, Germany, and Switzerland. Results from the logistic regression analyses indicate that various forms of agile practices are used in the public sector in all three countries. PSOs operating in constantly changing, uncertain environments are more likely to adopt agile. Political and managerial leadership is vital if the aim is to become more agile as a government. Finally, the results show that tasks that require constant internal and external stakeholder involvement and those that require radically new ideas and ways of working lead PSOs to introduce more comprehensive forms of agile working. This work advances the state of literature by providing the first quantitative analysis of the state of agile in the three countries, developing an analytical framework and measurement of agile government, and analyzing the external circumstances under which agile is being used in the public sector.
Citizens’ trust in AI-enabled government systems
Authors: Wang Yi-Fan , Chen Yu-Che , Chien Shih-Yi , Wang Pin-Jen
Published: May 2024

Artificial intelligence (AI) applications have been emerging in these past years and affecting multiple dimensions of the public sector. The government utilizes AI to transform policy implementation and service delivery, but AI can also threaten citizens’ privacy and social equity due to its potential biases. These concerns increase citizens’ perceived uncertainty concerning AI. In an uncertain environment, trust transfer serves as a way to improve citizens’ trust in AI-enabled government systems. However, little research has explored trust transfer between the public sector and the system. This study examines whether a context-based trust transfer mechanism can explain the trust-building of the AI-enabled government system. The study conducted a survey and analyzed the collected data using factor-score-based regression analysis. The research results indicate that trust transfer occurs for the AI-enabled government system. Trust in an administrative process, local government, and political leaders can be transferred to trust in governmental AI systems. The findings can advance the theoretical development of trust transfer theory and be used to develop recommendations for the public sector.
Analysis of current linkage harmonics in multi-phase machines with distributed windings
Authors: Mysiński Michał , Jędryczka Cezary , Demenko Andrzej , Macyszyn Łukasz
Published: May 2024

The paper presents the results of research on the spatial distribution of the multi-phase, distributed windings in electric machines. The focus was on the analysis of the harmonics of the current linkage spatial distributions. To perform calculations for different windings patterns, taking into account the number of phases, pole pairs, and the number q of slots per pole and phase, the dedicated code was developed in the Matlab environment. Nine different multi-phase windings were studied, for which magnetomotive force ( MMF) was determined to investigate the harmonic content and total harmonic distortion. The obtained results were compared with a reference three-phase symmetric system. Studies were also carried out on torque ripple and power density for different numbers of winding phases.
Studies on potential moderator materials for very cold neutron sources
Authors: Granada J.R.
Published: May 2024

The increasing demand for long wavelength neutrons is being motivated by the need to study larger objects and slower motions characterizing the new materials related to the requirements of nowadays science and technology. However, not much work has been done so far towards the identification of materials and conditions able to produce a copious flux of very cold neutrons (VCN) at either stationary or pulsed sources. This work presents the results of a preliminary study aimed at exploring materials that look promising as potential moderators for VCN sources. For this purpose, a search is done for the existence of very low energy excitations in the generalized density of states of some molecular systems, which can be efficient to slow down already cold neutrons by exchanging energy with them. Besides reviewing and improving the available information on methane (II) and methane clathrate, it is found that such objective can be realized by the quantum dynamics corresponding to the librations of the methyl groups in the methyl fluoride and the p-xylene molecules encapsulated in two different molecular hosts at low temperatures.
A decision tree-based study of pulmonary tuberculosis diagnosis-related groups
Authors: Liu Lei , Guo Jing , Ding Kun , Zhou Guang-Nao , Feng Yin-Ping , Zhang Na-Na
Published: May 2024

BACKGROUND: Globally, pulmonary tuberculosis is a significant public health and social problem. OBJECTIVE: We investigated the factors influencing the hospitalization cost of patients with pulmonary tuberculosis and grouped cases based on a decision tree model to provide a reference for enhancing the management of diagnosis-related groups (DRGs) of this disease. METHODS: The data on the first page of the medical records of patients with the primary diagnosis of pulmonary tuberculosis were extracted from the designated tuberculosis hospital. The influencing factors of hospitalization cost were determined using the Wilcoxon rank sum test and multiple linear stepwise regression analysis, and the included cases were grouped using the chi-squared automated interaction test decision tree model, with these influential factors used as classification nodes. In addition, the included cases were grouped according to the ZJ-DRG grouping scheme piloted in Zhejiang Province, and the differences between the two grouping methods were compared. RESULTS: The length of hospital stay, respiratory failure, sex, and age were the determining factors of the hospitalization cost of patients with pulmonary tuberculosis, and these factors were incorporated into the decision tree model to form eight case combinations. The reduction in variance (RIV) using this grouping method was 60.60%, the heterogeneity between groups was high, the coefficients of variance ranged from 0.29 to 0.47, and the intra-group difference was small. The patients were also divided into four groups based on the ZJ-DRG grouping scheme piloted in Zhejiang Province. The RIV using this grouping method was 55.24, the differences between groups were acceptable, the coefficients of variance were 1.00, 0.61, 0.77, and 0.87, respectively, and the intra-group difference was significant. CONCLUSION: When the pulmonary tuberculosis cases were grouped according to the duration of hospital stay, respiratory failure, and age, the results were rather reasonable, providing a reference for DRG management and cost control of this disease.