bluuebunny/crossref_metadata_2025 huggingface dataset:
HUBUNGAN BIG FIVE PERSONALITY DENGAN STRES AKADEMIK PADA MAHASISWA TINGKAT AKHIR
Authors: Alwi Fahim , Khairat Imalatul , Oktara Tri Windi , Kholid Kholid , Ramanda Peni
Published: December 2024

Penelitian ini dilakukan untuk mengeksplorasi korelasi stres akademik dengan big five personality mahasiswa program studi Bimbingan Konseling Islam angkatan 2017 di Universitas Islam Negeri Sultan Maulana Hasanuddin Banten. Sampel penelitian ini adalah sebanyak 45 orang yang terdiri dari 17 orang laki-laki dan 28 orang perempuan. Metode penelitian ini melibatkan penggunaan kuesioner dan pengolahan data melalui tabulasi menjadi tabel. Penelitian ini menggunakan dua kuesioner, yaitu skala stres akademik menggunakan Depression Anxiety and Stress 42 (DASS 42) dari Lovibond & Loavibond, dengan reliabilitas sebesar 0,922, dan skala big five personality menggunakan skala International Personality Item Pool (IPIP) yang dikembangkan oleh Goldberg, dengan reliabilitas sebesar 0,493 Analisis data dilakukan menggunakan product moment-pearson. Hasil penelitian ini menunjukkan bahwa secara keseluruhan, variabel big five personality memengaruhi stres akademik diantaranya pada dimensi oppenes to experience menunjukkan korelasi sebasar 0,293, dimensi conscientiousness menunjukkan korelasi sebasai 0,282, dimensi extraversion menunjukkan korelasi sebesar 0,311, dimensi Agreeablennes menunjukkan korelasi sebesar 0,235, dan dimensi neuroticism memiliki korelasi tertinggi sebesar 0,606. Mahasiswa yang menunjukkan kekuatan kepribadian pada oppenes to experience, conscientiousness, extraversion, dan agreeablennes mampu mengurangi risiko terjadinya stress akademik, Tetapi sebaliknya, mahasiswa yang memiliki kepribadian neuroticim akan menghadapi kesulitan dalam mengendalikan diri dan berpotensi mengalami stress akademik lebih tinggi.
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) MATEMATIKA BERBASIS KONTEKSTUAL PADA MATERI HIMPUNAN
Authors: Sari Novia , Rahmawati Nur Indah
Published: December 2024

Penelitian ini dilatar belakangi oleh penggunaan media pembelajaran yaitu buku paket yang menjadi satu-satunya sumber bahan ajar yang digunakan dalam proses pembelajaran dan juga buku paket yang digunakan gambar-gambarnya kurang familiar membuat peserta didik masih kesulitan dalam memahami materi himpunan. Tujuan penelitian ini adalah mengembangkan dan menghasilkan Lembar Kerja Peserta Didik (LKPD) matematika berbasis pendekatan kontekstual pada materi himpunan yang valid dan praktis. Jenis penelitian ini adalah penelitian pengembangan (Research and Development). Penelitian ini menggunakan model Borg and Gall dengan melalui beberapa tahapan yaitu: (1) Potensi dan masalah, (2) Mengumpulkan informasi, (3) Desain produk, (4) Validasi desain, (5) Perbaikan desain, (6) Uji coba produk, (7) Revisi produk. Uji coba produk dilakukan sebanyak satu kali dengan subjek uji coba dalam penelitian ini adalah adalah 26 peserta didik kelas VII SMP Negeri 3 Batanghari. Instrumen penelitian yang digunakan adalah lembar validasi ahli materi, lembar validasi ahli media, dan angket respon peserta didik. Hasil penilaian menunjukan penilaian ahli materi memperoleh persentase sebesar 74% dengan kriteria “Sangat Valid”, untuk hasil dari validasi ahli media memperoleh persentase sebesar 89% dengan kriteria” Valid”. Setelah divalidasi kemudian produk diujicobakan mengetahui respon peserta didik. Hasil dari respon peserta didik mendapat persentase sebesar 88% dengan kriteria “Sangat Praktis”. Sehingga dapat dikatakan bahwa LKPD matematika berbasis pendekatan kontekstual pada materi himpunan yang dikembangkan oleh penulis layak digunakan.
PENGEMBANGAN E-LKPD DENGAN PENDEKATAN PEMECAHAN MASALAH PADA MATERI SISTEM PERSAMAAN LINIER DUA VARIABEL
Authors: Ristiani Levia , Loviana Selvi
Published: December 2024

Penelitian pengembangan bahan ajar E-LKPD berbasis pendekatan pemecahan masalah (problem solving) dilatarbelakangi oleh bahan ajar yang belum maksimal dan masih belum ada inovasi di SMPN 1 Rumbia. Penelitian ini bertujuan untuk mengembangkan bahan ajar E-LKPD berbasis pendekatan pemecahan masalah (problem solving) guna memenuhi kebutuhan produktivitas belajar. Adapun kualitas produk pengembangan harus memenuhi kriteria yang ditinjau dari aspek kevalidan dan kepraktisan. Penelitian ini menggunakan penelitian pengembangan yang mengacu pada model Borg & Gall meliputi (1) potensi dan masalah, (2) pengumpulan data, (3) desain produk, (4) validasi desain, (5) revisi desain, (6) uji coba produk, dan (7) revisi produk. Instrumen yang digunakan yaitu angket penilaian oleh ahli materi dan ahli media dan angket kepraktisan respon peserta didik. Skor penilaian oleh ahli materi yaitu 176 dengan nilai rata-rata 4,38 termasuk dalam kategori “Sangat Setuju”. Skor validasi ahli media yaitu 135 dengan nilai rata-rata 3,89 termasuk dalam kriteria “Setuju”. Hasil respon peserta didik mendapat respon positif dari pengisian angket respon peserta didik dengan nilai persentase sebesar 92% termasuk dalam kriteria “Sangat Praktis”. Dengan demikian dapat disimpulkan bahwa E-LKPD berbasis pendekatan pemecahan masalah (problem solving) materi sistem persamaan linier dua variabel yang telah dikembangkan layak dan sangat praktis digunakan dalam pembelajaran matematika.
PENGARUH MODEL CORE BERBASIS BRAINSTORMING TERHADAP PEMAHAMAN KONSEP MATEMATIS DAN KEMAMPUAN BERPIKIR KRITIS
Authors: Azzahra Annisa , Netriwati Netriwati , Suri Indah Resti Ayuni
Published: December 2024

Rendahnya pemahaman konsep matematis dan lemahnya kemampuan berpikir kritis siswa menjadi masalah yang penting dipendidikan. Berdasarkan hasil pra penelitian, banyak siswa memperoleh nilai dibawah ketuntasan, terlihat dari cara siswa dalam menyelesaikan permasalah belum sesuai dengan struktur dan indikator-indikator pemahaman konsep dan kemampuan berpikir kritis, serta peserta didik beranggapan bahwa matematika adalah matapelajaran yang sulit. Tujuan penelitian ini untuk mengetahui pengaruh model pembelajaran CORE (Conecting, Organizing, Reflecting, Extending) berbasis brainstorming meningkatkan pemahaman konsep matematis dan kemampuan berpikir kritis siswa pada materi pola bilangan. Jenis penelitian yang digunakan ialah quasy experimental design. Teknik pengambilan data berupa tes, wawancara, dan dokumentasi. Hasil analisis data uji Manova menunjukan sig.  maka  ditolak dan  diterima. Sehingga, dapat disimpulkan bahwa terdapat: (1) pengaruh model pembelajaran CORE (Connecting, Organizing, Reflecting, Extending) berbasis brainstorming terhadap pemahaman konsep matematis dan kemampuan berpikir kritis siswa, (2) pengaruh model pembelajaran CORE (Connecting, Organizing, Reflecting, Extending) berbasis brainstorming terhadap pemahaman konsep matematis, (3) pengaruh model pembelajaran CORE (Connecting, Organizing, Reflecting, Extending) berbasis brainstorming terhadap kemampuan berpikir kritisRendahnya pemahaman konsep matematis dan lemahnya kemampuan berpikir kritis siswa menjadi masalah yang penting dipendidikan. Berdasarkan hasil pra penelitian, banyak siswa memperoleh nilai dibawah ketuntasan, terlihat dari cara siswa dalam menyelesaikan permasalah belum sesuai dengan struktur dan indikator-indikator pemahaman konsep dan kemampuan berpikir kritis, serta peserta didik beranggapan bahwa matematika adalah matapelajaran yang sulit. Tujuan penelitian ini untuk mengetahui pengaruh model pembelajaran CORE (Conecting, Organizing, Reflecting, Extending) berbasis brainstorming meningkatkan pemahaman konsep matematis dan kemampuan berpikir kritis siswa pada materi pola bilangan. Jenis penelitian yang digunakan ialah quasy experimental design. Teknik pengambilan data berupa tes, wawancara, dan dokumentasi. Hasil analisis data uji Manova menunjukan sig.  maka  ditolak dan  diterima. Sehingga, dapat disimpulkan bahwa terdapat: (1) pengaruh model pembelajaran CORE (Connecting, Organizing, Reflecting, Extending) berbasis brainstorming terhadap pemahaman konsep matematis dan kemampuan berpikir kritis siswa, (2) pengaruh model pembelajaran CORE (Connecting, Organizing, Reflecting, Extending) berbasis brainstorming terhadap pemahaman konsep matematis, (3) pengaruh model pembelajaran CORE (Connecting, Organizing, Reflecting, Extending) berbasis brainstorming terhadap kemampuan berpikir kritis.
TREN DAN ISU PENELITIAN UJI-T DAN CHI KUADRAT DALAM BIDANG PENDIDIKAN
Authors: Wahyudi Dedi , Idris Jamaluddin , Abidin Zainal
Published: December 2024

Penelitian ini membahas tren dan isu terkini dalam penggunaan uji-t dan chi-kuadrat dalam bidang pendidikan. Metode statistik ini merupakan alat penting dalam menganalisis data pendidikan untuk mengambil keputusan yang lebih informasi. Penelitian ini mengidentifikasi dua isu utama yang saat ini mendominasi penggunaan uji-t dan chi-kuadrat dalam konteks pendidikan.Pemanfaatan rumus statistik One-Sample T Test, Paired Sample T Test dan Independent-Sample T Test serta Chi Square berperan positif dalam proses penelitian sosial khususnya di dunia pendidikan. Proses analisa dapat dilakukan secara manual dan dengan bantuan aplikasi modern seperti SPSS. Banyak penelitian lain yang menggunakan uji-t dan chi square. Kemudian untuk mengolah data penelitian sebelumnya dapat menggunakan berbagai tools seperti SPSS. Banyak program pengolahan data statistik yang tersedia untuk digunakan, namun selain menerjemahkan hasil program ke dalam bentuk kualitatif, pengguna harus menghubungkan kesimpulan dari data yang diperoleh. Terkadang sulit mengambil kesimpulan dari hasil pengolahan data tersebut, terutama bagi pengguna yang belum paham dengan konsep statistika.
DEFRAGMENTING BERPIKIR PSEUDO SISWA DALAM MENYELESAIKAN SOAL ALJABAR MATEMATIKA
Authors: Ismiasih Novi
Published: December 2024

Thinking process errors are usually caused by students not understanding the previous material. One of the reasons why students often make mistakes is that they are more interested in memorizing than understanding a material concept. Pseudo-thinking is a way of preparing steps that are inaccurate and not thorough, students tend to be able to answer questions but cannot give reasons. This research uses qualitative research with a descriptive type. The research subjects were class VII students at SMPN 2 Gandusari. The instruments of this research are tests and interviews, for data analysis based on the polya stages. The results of the research show that (1) at the stage of understanding the questions, students experience errors in analogical thinking and constructing concepts because students only understand in simple terms, so that students can explain the answers to the mistakes made, defragmenting and scaffolding are needed, (2) planning problem solving, students make mistakes in placing concepts because students do not understand the concepts and procedures, after being given defragmenting with scaffolding with concepts and procedures students can design problem solutions correctly (3) solve the problem in the problem, the lack of cognitive commitment of students causes students to lose control and break up hope, after being given conflict cognition students can solve the questions from the plans they have made, (4) examining the answers, students consider the answers that have been answered to be correct because they don't really understand the concept requested, after being given it is defragmented with disequilibration students can check the answer again with the concept that was asked. structured and correct
Keywords: defragmenting, pseudo thinking, algebra
PENDESAINAN SOAL PEMODELAN MATEMATIKA UNTUK MEMPROMOSIKAN KEMAMPUAN PROBLEM-POSING SISWA
Authors: Riyanto Bambang
Published: December 2024

Problem-posing matematika sangat penting dalam pendidikan matematika, tetapi kurang mendapat perhatian dari siswa, guru, dan peneliti. Rumusan masalah penelitian ini adalah mendesain soal pemodelan matematika untuk mempromosikan kemampuan problem-posing siswa di sekolah dasar yang valid. Penelitian ini menggunakan pendekatan Design Research tipe penelitian pengembangan yang dikembangkan oleh Akker, Gravemeijer, McKenney dan Nieveen. Penelitian pengembangan ini terdiri dari 3 langkah yaitu analisis, desain dan evaluasi. Langkah analisis, analisis siswa, kurikulum, pemodelan matematika dan masalah dunia nyata diimplementasikan. Langkah desain, desain dan produk. Langkah Evaluasi formatif, peneliti menggunakan desain evaluasi formatif yang terdiri dari self-evaluation, one-to-one, expert review, small group, dan field test. Instrumen riset ini adalah soal pemodelan matematika konteks paket ulang tahun. Data dianalisis dengan menggunakan metode analisis deskriptif: (1) walk through, analisis berdasarkan komentar ahli dalam tinjauan ahli untuk mendapatkan soal pemodelan matematika yang valid untuk meningkatkan kemampuan pengajuan masalah siswa; (2) Menganalisis hasil review secara one to one. Riset ini hanya sampai pada one to one. Berdasarkan validasi ahli soal pemodelan sudah baik dan menantang. Siswa berkomentar bahwa soal pemodelan ini menarik dan bagus. Siswa dapat mengajukan soal matematika sekaligus menyelesaikannya dari situasi paket makanan ulang tahun. Sehingga, diperoleh soal pemodelan matematika menggunakan konteks paket ulang tahun yang valid untuk mempromosikan kemampuan problem posing siswa sekolah dasar.
PENGEMBANGAN EDUGAME ARISA BERBASIS ANDROID BERBANTUAN ADOBE ANIMATE PADA MATERI ARITMATIKA SOSIAL KELAS VII
Authors: Zulfikri Ahmad , Auliya Nanang Nabhar Fakhri
Published: December 2024

Penelitian ini bertujuan untuk menciptakan sebuah game bernama Arisa yang berfokus pada materi aritmetika sosial, kemudian akan dinilai kelayakannya. Metode penelitian yang digunakan adalah penelitian pengembangan dengan menggunakan model ADDIE (Analyze, Design, Develop, Implement, dan Evaluate). Kelayakan game ini dievaluasi melalui uji kelayakan ahli media, uji kelayakan ahli materi, serta respon siswa di SMP Plus Abayasa Pati. Hasil uji kelayakan ahli materi menunjukkan bahwa game Arisa mendapat tingkat kelayakan sebesar 92,5%, dengan kategori sangat layak. Uji kelayakan ahli media juga memberikan tingkat kelayakan sebesar 87,5%, dengan kategori sangat layak. Uji coba pada siswa dibagi menjadi dua kelompok, yaitu kelompok kecil dan kelompok besar, dengan tingkat kelayakan masing-masing sebesar 84,88% dan 84,68%, keduanya dinilai sangat layak. Oleh karena itu, game Arisa dianggap sangat layak dan efektif dalam mendukung pembelajaran matematika, terutama pada materi aritmetika sosial.
Advancing energy innovations: Reflections on 2024, prospects for 2025
Authors: Acevedo Oscar
Published: December 2024

This editorial reflects on key points in the energy transition during 2024, including renewable energy growth, advancements in energy storage, and the rise of electric mobility. It also introduces special sections featuring research from the 2023 IEEE Colombian Caribbean and ICARGET Conferences. Looking ahead to 2025, it highlights the transformative roles of artificial intelligence, green hydrogen, and smart cities in shaping a sustainable energy future, reaffirming the journal’s commitment to driving innovation and global energy progress.
Prospective modeling of agricultural evolution in desert regions using the Land Change Modeler (LCM) - a case study in Menia, Algeria
Authors:   University of Djelfa, Sehl Boudjema , Khader Mhammed ,   University of Djelfa, Hadjadj Kouider ,   University Center of Naâma, Lahouel Mohamed ,   University of Djelfa
Published: December 2024

The Land Change Modeler (LCM) is crucial for understanding and shaping the future of agriculture in Algeria's Saharan regions. The study used satellite data from 2000, 2010, and 2020 and predicted agricultural growth up to 2030 using the Land Change Modler (LCM) based on the Logistic Regression Model (LRM). Results showed rapid agricultural growth in Menia, with an annual rate of 3.05% between 2000 and 2020. This growth is projected to moderate to 1.85% between 2020 and 2030, indicating a shift in the growth trajectory. This growth contributes to sustainability and food security in the region.
A history of the hemp industry in Missouri
Authors:   , Easton Miles W.
Published: December 2024

Hemp, one of the oldest known fiber plants was cultivated in China and India as early as 500 A. D. With the rise of civilization and the development of those activities that create a demand for this fiber, the hemp culture spread to other parts of the world. By the seventeenth and eighteenth centuries, it was grown extensively in Russia, France, and Italy. Russia was considered the leading hemp producing country of the world at that time. The hemp plant yields a strong and durable fiber. Consequently, its fiber proved useful in the manufacture of rough fabric commodities. Then transportation on the high seas became an important factor in the commerce of the world, this fiber found another important use in the manufacture of riggings for sailing vessels. The plant was even grown for narcotic purposes at an early date in China and India. The hemp plant was first introduced into North America soon after the colonial settlements were established. It was grown in New England on a small scale, but considerable attention was given to its cultivation in Maryland and Virginia. Both the British government and the colonial legislatures attempted to promote the industry of hemp by offering bounties for its production in the latter part of the seventeenth and the early part of the eighteenth centuries. However, the industry did not assume any great importance in North America until the urgent need for it arose in the cotton industry. Kentucky grew hemp on a small scale by 1800. With the deinand for raw hemp for manufacture into cordage, bagging, and canvas, the industry expanded greatly in Kentucky, and began to extend to other western states, particularly to Missouri.--Introduction.
Start-up transient model for a refrigerant condenser
Authors:   , Ibrahim Osama Mohamed
Published: December 2024

A one-dimensional start-up transient model for a portion of the refrigeration system used in typical residential air conditioners was developed in this study. The model was limited to three components: the compressor, the condenser, and the expansion valve. The main objective of this study is to introduce numerical methods and new solution schemes which can be used to give accurate, detailed predictions of the fast transient behavior inside the condenser, and to predict the development of the superheated, two-phase, and subcooled sections within the condenser as a function of position and time. Homogeneous and separated two-phase flow models are used to describe the two-phase flow. The mathematical formulation of this model is based on mass, momentum, and energy balances with associated heat transfer and friction relationships. The results of two different case studies are presented. In case study #1, air is used as the working fluid, while in case study #2, a refrigerant is used and the results are compared with a reported analytical model presented by Dhar (Ref.2). The effects of the wall thermal capacity and the different two-phase flow models on the system start-up transient behavior are also discussed.
Estimates on heat transfer from a conditioned space for average days
Authors:   , Antono Kurniawan
Published: December 2024

"Since the early seventies, the cost of energy has risen dramatically. In the late seventies, the amount of energy consumed by the residential sector in this country consisted of twenty percent of the total energy consumed. The energy consumed by the housing sector is expected to rise at an annual rate of 2.3 percent through year 2000. This study is designed to develops a computer program to estimate the energy consumed by a conditioned space or structure for average days. One or more unconditioned space may be present in a structure. Another computer program is developed to estimate the temperature of any unconditioned space. The calculations in both programs are based on the ASHRAE Handbook 1977 Fundamentals. Both computer programs utilize the sol-air temperature for the effective temperature of the surface of perimeters exposed to the outside air. The sol-air temperature is the temperature of the outside air affected by the outside air temperature in the shade, solar radiation, radiant energy exchange with the sky and surroundings and convective heat exchange with the surface. The solar time is the basis for all calculations in this study."--Introduction.
Sheep as a competitive livestock enterprise in Missouri
Authors:   , Abreu Jaime Vidal
Published: December 2024

"The ancestors of the present-day domestic sheep in the U.S.A, were imported. Domestic sheep were introduced in North America at the end of the 15th century and the beginning of the 16th century by Spaniards. At the beginning of the 17th century the first sheep of British breeds were introduced in Virginia. Sheep numbers have fluctuated rather widely from time to time. The sheep stock peaked in the 1880's with almost 46 million head, and peaked again during World War II with 56 million head. Immediately after WWII, the sheep stock sharply declined by one half, and the 25 million head in inventory at the time increased very slowly until the 1960's, when the inventory decreased to 21 million, the lowest since the records began in 1867. Since then, the sheep stock numbers continued to decline, except during a short recess in the late 70's, to the present number of all sheep and lambs on farms as of January 1986, of 9,932,000."--Introduction.
The influence of the environment on the plastic zone of a propagating fatigue crack tip in aluminum and steel
Authors:   , Beaulieu Paul Stephen
Published: December 2024

Crack closure measurements were used in an effort to measure changes in bulk plasticity due to changes in environment at the tip of a propagating fatigue crack. The study was done to determine if there are changes in the residual stresses in the plastically deformed region as a function of the two environments which were vacuum and humid bottled air. The materials investigated were 2024-T351 aluminum alloy and 4130AQ steel. Crack closure measurements were taken with a surface mounted displacement gauge located at the middle of a center cracked panel. The environment clearly has an influence on the fatigue crack growth rate. In vacuum, crack growth rate is slower than in air. However crack opening stress levels did not reveal changes with respect to various environments for the steel and the aluminum materials. Thus the results of this research suggest that no changes occur in the plastic zone size with respect to the influence of the environment which in turn implies that the yield strength of the plastic zone material has not been influenced by environmental effects. Therefore, the observation seen in this work demonstrates no environmental influence on the fatigue crack tip plasticity in either the 2024-T551 material or the 4130AQ steel.
Isolation and characterization of mel cell plasma membranes
Authors:   , Bollinger David Wayne
Published: December 2024

Plasma membranes can be isolated from Friend erythroleukemia cells strain GM86 in high yield and purity, with out resorting to ultra high speed centrifugation. The isolation procedure involves (1) coating intact washed cells with Conconavalin A (Con A) to protect against subsequent membrane fragmentation and vesiculation after cell lysis thereby avoiding intracelluar constituent entrapment (2) separating Con A coated plasma membranes from other celluar constituents by low speed centrifugation and (3) converting open plasma membrane sheets into vesicles by removing more than 90 percent of the Con A with methyl-D-mannopyranoside.The DNA content of isolated plasma membranes sheets is less than 20 percent of that found in whole cells on a mg/mg protein basis; DNA content of vesicles is below the level of detection. RNA is not detectable in plasma membrane sheets or vesicles. Plasma membranes have a high sterol to phospholipid ratio characteristic of mammalian plasma membranes; however this ratio is uncharacteristically high in whole cells compared to eucaryotic cells in general. Membrane preparations were enriched 19 fold in Mg dependent ATPase, 19 fold in (Na^+,K^+) stimulated Mg ATPase, 35 fold in (Ca^2+, Mg^2+) calmodulin stimulated ATPase and 6 fold in 5'nucleotidase activities. Succinate dehydrogenase, a mitochondrial marker, was present in cells, but below the level of detection in plasma membrane preperations. Calcium transport experiments show that vesicles export Ca^2+ energized, thus compared to the direction of Ca^2+ movement in cells, vesicles are largely 'right side' out. Of all energy sources tested-adenosine triphosphate (ATP), acetate, D-glucose, pyruvate, lactate, phosphoenol pyruvate (PEP), succinate, NADPH (nicotinamide-adenine dinucleotide phosphate), NADH (nicotinamide-adenine dinucleotide), guanosine triphosphate (GTP)-only ATP was effective in energizing 45Ca export from vesicles. Experiments with CCCP (carbonyl cyanide chlorophenol hydrozone), nigerisin, valinomycin, DMO (5,5-dimethyloxazolidine-2,4-dione) and TPP (tetraphenylphosphonium bromide) show that at pH 7.5 [delta][psi] is the driving force for the maintance of vesicular Ca^2+ concentration.
The foraging behavior and habitat use of breeding red-shouldered hawks (Buteo lineatus) in southeastern Missouri
Authors:   , Parker Margaret A.
Published: December 2024

"The objective of this study was to provide more information on the habitat use and requirements of Red-shouldered Hawks in southeastern Missouri. The study was designed to learn more about the hawk's nesting habitat characteristics, foraging habitats, and prey preferences. Because of the increased food demands on breeding hawks during the nestling phase, special emphasis was put on this period. The three major areas of the hawk's habitat selection and behavior that were studied are described below."--Page 4.
RNA polymerase II from mutant and wild type strains of Caenorhabditis elegans
Authors:   , Sanford Thomas Robert
Published: December 2024

Studies of transcription in Caenorhabditis elegans, a model organism for the study of developmental genetics, should contribute to an understanding of the developmental process in metazoans. This research describes preliminary characterization of RNA polymerase II, the enzyme that transcribes messenger RNA. RNA polymerase I, II, and III from C. elegans were isolated, and their sensitivities to the fungal toxin O-amanitin measured. Sensitivities of these enzymes to amanitin were similar to those of the coresponding RNA polymerases from vertebrates. RNA polymerase II from the nematode was 50 percent inhibited by 7 [mu]g/ml of the amatoxin and RNA polymerase III by 80 [mu]g/ml, whereas RNA polymerase I was insensitive to 500 [mu]g/ml of the toxin. Mutants of C. elegans were isolated which can grow and reproduce in concentrations of amanitin which arrest development of wild type worms. One of these mutant strains (DR432) was shown to contain an altered RNA polymerase II which when purified was 150 times less sensitive to the amatoxin than wild type enzyme. The mutation in DR432, ama-l(ml30), is dominant and located on linkage group IV. RNA polymerase II isolated from ama-l/+ heterozygotes contains equal proportions of two components, corresponding in amanitin sensitivity to the enzymes from DR432 and wild type. Thus, ama-1 appears to affect a subunit of RNA polymerase II. A procedure was desinged for obtaining highly purified RNA polymerase II from C. elegans. The structure of the enzyme was examined by denaturing gel electrophoresis and found to consist of two large subunits ([greater than] 100 kd), and eight smaller subunits ([less than] 50 kd). The structure of the nematode RNA polymerase II closely resembles that of the corresponding enzyme from other animals. Polyclonal antibodies against C, elegans and Drosophila RNA polymerase II were shown to bind to several subunits of the C. elegans RNA polymerase II in protein blots.
Cost-benefit analysis of vocational-technical education programs in Missouri junior colleges
Authors:   , Richardson William B.
Published: December 2024

Objectives of the Study: The major purposes of this study were: (1) to ascertain the per student cost of two-years of junior college vocational-technical education, (2) to determine the economic benefits of the students who had completed these vocational-technical programs, and (3) to determine the cost-benefit relationships of the vocational programs based on three investment criteria.
Edwin Sutherland and the origins of differential association theory
Authors:   , Gaylord Mark Stratton
Published: December 2024

The purpose of this dissertation is to examine thoroughly the origin of Edwin H. Sutherland's theory of differential association and to show hew it evolved with Sutherland's development as a criminologist. Comparing criminology to American sociology, which by the 1920s had created a profound new social psychology and had developed an empirical methodology, Sutherland thought it intellectually backward and unscientific. He rejected both the Lcmbrosian legacy of biological determinism and the extreme individualism of psychology and psychiatry. It is argued that Sutherland's dissatisfaction with early 20th century criminology, together with a personality marked by perfectionism, professional ambition, diligence and the desire towin acceptance from his colleagues, led him to search for a scientific sociological criminology. This search resulted in the development of the theory of differential association -- a theory which gave new direction and intellectual respectability to criminology. This study concludes that Sutherland's theory was conceived, developed and accepted, based on three factors. First, he was an active member of a group of University of Chicago sociologists Including W. I. Thomas, Robert E. Park, Clifford R. Shaw, and Henry D. McKay. These men drew from the concepts and perspectives of the wider sociological community as well as frcm each other in developing a general theory of human behavior. Sutherland saw his work as merely one part of this collective effort. His genius was to adapt these concepts and perspectives to his particular field and in so doing help create sociological criminology. Others whose ideas were found to have helped Sutherland develop his theory include Thorsten Sellin, Frank L. Sweetzer, Charles H. Cooley, and Alfred R. Lindesmith. Second, by the mid-1920s Sutherland's professional identity had centered on the development of American sociology. He worked to advance the field both as a system of ideas and as a profession. The theory of differential association, determinedly sociological, was warmly received by Sutherland's colleagues. They accepted his ideas and held him in high esteem as a loyal and effective supporter of sociology. Third, the Depression created a social, political and intellectual climate in which a sociological theory of crime causation was readily accepted.
THE EFFECT OF CONCENTRATION AND SOAKING LENGTH OF ALOE VERA GEL ON THE GROWTH OF ROBUSTA COFFEE (Coffea canephora) CUTTINGS
Authors: Rahmawati Nurul Diah , Historiawati  , Nurul Iftitah Siti
Published: December 2024

This study aims to determine the effect of concentration and soaking time of aloe vera gel on the growth of robusta coffee cuttings. The research was arranged in a Randomized Complete Group Design (RAKL) with a factorial experiment (4x2) consisting of two treatment factors and repeated three times as a block. The first factor is the concentration of aloe vera gel with levels of 0, 20, 40, and 60%. The second factor is the length of soaking with levels of 5 and 10 hours. The results were analyzed using variance analysis, treatments that had a significant effect were further tested with Orthogonal Polynomial for the first factor and interaction and the Least Significant Difference (LSD) test for the second factor. The results showed that 40% aloe vera gel concentration produced the highest root dry weight. The treatment of aloe vera soaking time for 5 hours produced the longest root length. The interaction between aloe vera gel concentration of 20% and soaking time for 5 hours produces the longest root length.
OPTIMIZATION OF STEVIA SEEDLING GROWTH (Stevia rebaudiana) WITH THE APPLICATION OF CHITOSAN AND HUMIC ACID
Authors: Manukoto Delivio , Widowati  , Hapsari Ricky Indri , Syaputra Roni
Published: December 2024

Stevia (Stevia rebaudiana is a natural sweetener plant that can potentially be cultivated in Indonesia. However, the seedlings often experience suboptimal growth. This research aims to study the effect of chitosan and humic acid application at various doses on the growth of stevia seedlings. The research was conducted from June to August 2024 at the Standard Testing Center for Sweetener and Fiber Crop Instruments Karangploso, Malang, East Java. The study used a non-factorial Randomized Group Design (RAK) with 6 treatment levels and repeated 4 times for each treatment. The treatments tested consisted of K0H0 (0 ml chitosan and 0 ml humic acid), K0H1 (0 ml chitosan and 6 ml humic acid), K0H2 (0 ml chitosan and 12 ml humic acid), K1H0 (10 ml chitosan and 0 ml humic acid), K1H1 (10 ml chitosan and 6 ml humic acid) and K1H2 (10 ml chitosan and 12 ml humic acid). The results showed that the best treatment was chitosan 10 ml without humic acid (K1H0) which gave an effect on increasing plant height, root length and also the number of leaves of stevia seedlings.
THE EFFECT OF PROVIDING BANANA HUMBLE MOL AND LIQUID ORGANIC FERTILIZER (POC) RICE WASHING ON THE GROWTH AND PRODUCTION OF PURPLE EGGPLANT (Solanum melongena L.)
Authors: Winata Muhammad Adrian , Desi Sri Pasca Sari Sembiring  , Tharmizi Hakim
Published: December 2024

Purple eggplant is an important vegetable crop in various cuisines, and the market demand for this crop is quite high. Fertilization is done as an effort to meet the needs of plants so that production goals can be achieved. This research was conducted at the office land of Pulo Brayan Bengkel Baru Urban Village, East Medan District, Deli Serdang Regency, North Sumatra with an altitude of ± 500 meters above sea level. This study used a Factorial Randomized Group Design (RAK) pattern. The treatment factor used in the study was the application of MOL bonggol pisang and POC rice washing water consisting of 4 levels of treatment and 3 repetitions. The first factor of MOL bonggol pisang is P0 = No Giving, P1 = 200 ml / water, P2 = 400 ml / water, P3 = 600 ml / water. The second factor is rice washing water POC, namely A0 = No Application, A1 = 150 ml / water, A2 = 300 ml / water, A3 = 450 ml / water. Observations of parameters in this study were plant height, number of productive branches, number of fruits, fruit weight per plant and fruit weight per plot. From this design, 16 treatment combinations were obtained and 3 repetitions were carried out, so that 48 experimental units were obtained in the study. The results showed that the treatment of MOL banana pomace strongly influenced all research parameters, the optimal concentration of MOL banana pomace was 400 ml / water. POC rice washing water is very influential on all research parameters, the optimal concentration of POC rice washing water is 450 ml / water. The purpose of this study was to determine the effect of banana stem moles and washing water POC on the growth and production of purple eggplant plants.
SUPPLY CHAIN INNOVATION AND COMPETITIVE ADVANTAGE IN THE COFFEE BUSINESS IN CENTRAL ACEH DISTRICT, ACEH PROVINCE
Authors: Fadhiela ND Keumala , Siringo ringo Liston
Published: December 2024

The agriculture sector highly depends on various suppliers to meet its input requirements. Because the agriculture sector relies so heavily on its suppliers, robust supply chain management and strong supplier relationships ensure agribusiness sustainability and efficiency. Aceh's coffee supply chain is typified by low profitability and poor optimization, especially regarding Gayo Arabica coffee. The COVID-19 pandemic has elevated distribution risks at different supply chain stages, exacerbating this further. The relationship between supply chain innovation and competitive advantage in the coffee sector in Aceh Tengah District, Indonesia, is investigated in this quantitative study employing a mediation model. With 60 respondents, Central Aceh Regency was selected using a purposive sampling technique for research purposes. This study uses a Likert-scale questionnaire with structural equation modeling (PLS-SEM). This research aims to assist Acehnese coffee companies in gaining a competitive edge through innovative supply chain practices, resulting in more robust and efficient risk management and sustainability strategies. The results show that supply chain innovation and resilience capability do not affect competitive advantage, where the p-value of these two variables is 0,4. In addition, resilience capability as a mediating variable does not directly affect supply chain innovation and competitive advantage.
 Keywords: agribusiness, coffee, sem pls, supply chain innovation
DEVELOPMENT OF ANALOG RICE FROM PURPLE CORN AND SEAWEED Gracillaria sp POTENTIAL AS HIGH-FIBER FUNCTIONAL FOOD
Authors: Nurwati  , Sulasyi Setyaningsih  , Diah Eka Maulina
Published: December 2024

Analog rice (imitation rice) is made from ingredients such as cereals and tubers whose shape and nutritional composition are similar to rice. The main ingredients that can be used to create analog rice are purple corn and seaweed which have good nutritional value. The purpose of this study was to determine the formulation of analog rice with high fiber. This study has 4 treatments, namely K1 (polished rice), K2 (seaweed 5%), K3 (seaweed 10%), and K4 (seaweed 15%). The highest dietary fiber is 5.77%, low air content is 7.09%, has an ash content ranging from 0.75 - 6.5%, fat content ranges from 1.24 - 5.66%, Carbohydrates range from 71.29 - 77, 48%., protein 7.09 - 8.35%. Color analysis of analog rice parameter L * (brightness) ranges from 38.20 - 40.66. WI value ranges from 59.43 to 60.68, a* (red) value ranges from 5.97 to 5.39, b* (yellow) value ranges from 9.8 to 10.73, and tranparancy value ranges from 59.43 to 60.68. The results of the organoleptic test of all parameters show that the highest organoleptic value is obtained in milled rice and in the analog rice formula which has the highest value, namely K2 (5% seaweed).
Keywords:  Analog Rice, Purple Corn, Seaweed, Dietary Fiber
TESTING THE EFFECTIVENESS OF VEGETABLE PESTICIDES AND GOAT URINE POC FOR PEST PREVENTION AND GROWTH OF ONION (Allium ascolanicum L.)
Authors: Aezad M. Hafiq , Ginting Tri Yaninta , Hakim Tharmizi
Published: December 2024

The excessive use of pesticides and synthetic fertilizers will result in a decrease in nutrients resulting in an impact on shallot productivity, so that shallot production in Indonesia still does not meet consumer demand. This study aims to determine the effect of dosing of vegetable pesticides and POC of goat urine on shallots. This study used a factorial Group Random Design (RAK), with 3 replicates. The first factor is the use of vegetable pesticides from mahogany seeds with 3 concentration levels, namely M0 = 0 ml/100 ml of water/plot, M1 = 30 ml/100 ml of water/plot, and M2 = 60 ml/100 ml of water/plot. The second factor is liquid organic fertilizer from goat urine with 3 concentration levels, namely K0 = 0 ml/liter of water/plot, K1 = 200 ml/liter of water/plot, and K2 = 400 ml/liter of water/plot. The variables observed were plant height, wet weight, dry weight, attack intensity, and arthropod diversity. The results of the study were taken at the age of 2,3,4,5, and 6 weeks after planting (MST). The treatment of vegetable pesticides and POC of goat urine did not produce an interaction on the observed variables of plant height, wet weight, and dry weight. The results showed that the treatment of vegetable pesticides with the highest concentration at M2 resulted in a plant height of 32.60 cm, a wet weight of 35.14 grams and a dry weight of 27.11 grams. Meanwhile, the treatment of goat urine liquid organic fertilizer was the highest, resulting in a plant height of 32.73 cm in the K2 treatment. For wet weight, and dry weight, the highest treatment was in K1 with a wet weight yield of 36.92 grams, and dry weight of 29.14 grams. Regarding the intensity of pest attacks, the results of the study showed that in the first week no attacks were found. However, in weeks 2 to 6 attacks began to appear, with the highest intensity of 0.19 in the M0 treatment. The analysis of Arthropod diversity showed an index of 1.8. which indicates the level of species diversity that is currently in the research field. Overall, this study shows an increase in the growth and production of shallot plants.
THE EFFECT OF COLD BREW AND HOT BREW EXTRACTION METHODS AND DURATION OF FERMENTATION ON THE QUALITY OF ROBUSTA COFFEE WINE (Coffea canephora) TEMANGGUNG
Authors: Nokabun Karolus Yubel , Handoko Yoga Aji
Published: December 2024

This study examines the effect of fermentation duration and extraction methods (cold brew and hot brew) on the quality of robusta wine coffee. Wine coffee is a beverage resulting from the fermentation process of coffee extract which is providing a unique taste with a blend of coffee and alcohol flavors, along with a characteristic wine aroma. Through these two extraction methods, cold brew and hot brew offer different characteristics to the chemical parameters such as pH, reducing sugar content, alcohol content, caffeine content, and flavor. The research results indicate that cold brew yields a lighter flavor, while hot brew tends to have a stronger or more bitter taste. The duration of fermentation significantly affects the chemical parameters, with a decrease in pH and reducing sugar content as fermentation time increases. The alcohol content in cold brew reaches 19.93% on day 28, higher than hot brew which has 18.40% of alcohol. Organoleptic analysis results show that cold brew is preferred by the panelists, especially on the 28th day of fermentation.
Розвиток ветеранського бізнесу та управління стартапами як основа зміцнення місцевої економіки у воєнний період
Authors: Танчак Я. А.
Published: December 2024

У дослідженні розглянуто низку проблем, пов’язаних із ветеранськими стартапами як перспективними починаннями, своєрідним соціальним підприємництвом. Першою з-посеред проблем початку і ведення ветеранського бізнесу є його невизначеність у правовому полі. Другою – практична відсутність централізації щодо підтримки управління бізнесом. Попри те, що вже існує низка відповідних програм, стартап і бізнес мають суттєві відмінності, причому успіх першого зовсім не є ознакою успішності другого. Через відсутність організаційно-управлінської підтримки стартапи так і не стартують або ж застрягають у своєму практичному розвитку. Є низка причин цього, серед яких – рівноважливі освітні, соціально-економічні та психологічні. Аналізується досвід управлінської підтримки ветеранського бізнесу в США та Хорватії, що може бути дієвим і в нашому випадку навіть попри те, що війна триває.

Ключові слова: війна, ветерани, підприємництво, управління, ветеранський бізнес, стартап.
PENILAIAN GREENSHIP NEW BUILDING VER 1.2 PADA PROYEK ASRAMA AL-HIKAM DEPOK DAN ESTIMASI BIAYA UNTUK MENINGKATKAN KUALIFIKASINYA
Authors: Budi Agung Setia , Arifin Syamsul , Soetjipto Jojok W.
Published: December 2024

The Intergovernmental Panel on Climate Change (IPCC) salah satu badan PBB yang bertugas mengevaluasi ilmu pengetahuan terkait perubahan iklim mendata manusia merasakan suhu 1,2 derajat celcius lebih panas dari biasanya, dan dalam 10 tahun terakhir permukaan air naik hampir 3 kali lipat dan juga isu global warming lainnya, beberapa solusi salah satunya dengan menerapkan konstruksi yang ramah lingkungan. Asrama Al-Hikam Depok merupakan salah satu proyek pembangunan yang sekarang masih dalam tahap pembangunan, penelitian ini akan mengkaji apakah proyek ini menerapkan pembangunan ramah lingkungan dalam perencanaannya, m aka dari itu perlu adanya identifikasi green building terhadap pembangunan asrama ini. Metode untuk mengidentifikasi green building dengan metode Greenship New Building Ver 1.2 dan menghitung anggaran biayanya dengan metode AHSP terbaru. Hasil poin dari tolok ukur yang tercapai Proyek Asrama Al-Hikam Depok mendapatkan nilai 36 dari 101 poin atau 36% tolok ukur yang tercapai, lalu ada beberapa tolok ukur yang bisa direkomendasikan untuk menaikkan peringkat dengan syarat tolok ukur tersebut harus diterapkan pada bangunan tersebut, tentunya ada biaya tambahan dari RAB awal bangunan. Kesimpulan penelitian ini peringkat Greenship yang dicapai pada Proyek Asrama Al-Hikam Depok adalah peringkat bronze dan bisa dinaikkan menjadi peringkat silver dengan menerapkan 6 tolok ukur yaitu: Buat Pernyataan untuk Survei Suhu dan Kelembapan; Memiliki SOP Manajemen Limbah Padat Konstruksi; Memiliki SOP Manajemen Limbah Cair Konstruksi; Menambah Lux Sensor untuk Ruang Kerja; Memasang Sensor CO2 dan Exhaust pada R. Serba Guna; Memasang Panel Surya. Penambahan biaya yang bisa menaikkan satu tingkat diatas peringkat yang dicapai pada bangunan ini adalah sebesar Rp. 12.298.330,-.
PEMBERHENTIAN PENGECORAN BETON UNTUK PEKERJAAN KONSTRUKSI LENTUR BERDASARKAN SNI 2847-2019
Authors: Pratikto Pratikto , Susilowati Anni , Gym Wijaya Abdira
Published: December 2024

The presence of construction joints is an inevitable aspect of field concrete casting. These joints occur when fresh concrete is poured over hardened concrete, which can impact the strength and integrity of the concrete structure. This study aims to evaluate the placement of concrete joints according to SNI 2847-2019, which recommends placing them at one-third of the span of the beam. Testing was conducted on unreinforced concrete beams with two different joint locations. The concrete used had a water-cement ratio (w/c) of 0.5 and a maximum aggregate size of 25 mm, with the mix design following SNI 7656-2012. The test results indicate that joints placed at one-third of the span exhibit better flexural strength compared to those located at the span's ends. The average flexural strengths of beams without joints, those with joints at one-third of the span, and those with joints at one-third of the end span are 1.95 MPa, 1.56 MPa, and 0.98 MPa, respectively. These findings support the SNI 2847-2019 recommendation for placing concrete joints at one-third of the span of the beam.
ПРОГРАМУВАННЯ ВРАЖЕНЬ СПОЖИВАЧІВ У РЕСТОРАННОМУ БІЗНЕСІ В УМОВАХ СЬОГОДЕННЯ
Authors: Антошкова Наталія , Томаля Тетяна
Published: December 2024

Стаття присвячена актуальним проблемам пошуку нових інноваційних шляхів розвитку ресторанного бізнесу України в умовах повномасштабної війни, економічної кризи та масової міграції населення. Проаналізовано сучасні нові тенденції функціонування закладів ресторанного господарства, які сформувалися під впливом суттєвих змін споживчого попиту. Досліджено перспективи взаємодії суб’єктів ресторанного бізнесу зі споживачами ресторанних послуг через впровадження концепції програмування вражень гостей. Окреслено основні етапи впровадження даної концепції у діяльність закладів, запропоновано визначальні компоненти лояльності споживачів до підприємств ресторанного господарства. Розроблено інструмент трансформації сфер відповідальності персоналу підприємства ресторанного господарства у процесі інкорпорації концепції програмування вражень споживачів.
ЦИФРОВІЗАЦІЯ В УМОВАХ ГЛОБАЛЬНИХ ВИКЛИКІВ: АЗІЙСЬКИЙ ДОСВІД ТА ПЕРСПЕКТИВИ
Authors: Кириченко Микола , Галюк Антон
Published: December 2024

Стаття аналізує роль цифровізації в розвитку національних економік країн Азії, висвітлюючи її вплив на економічне зростання, інноваційність та адаптацію до сучасних викликів, зокрема пандемії COVID-19. Цифровізація розглядається як ключовий чинник, що стимулює економічний розвиток через впровадження новітніх технологій, оптимізацію бізнес-процесів та розширення доступу до глобальних ринків. Однак, автори звертають увагу на проблему цифрового розриву, який створює нерівність між країнами та регіонами, що відрізняються рівнем доступу до цифрових технологій та ресурсів. Значна увага приділяється державній політиці, яка може як прискорювати, так і стримувати процеси цифрової трансформації. У статті підкреслюється, що COVID-19 став каталізатором цифровізації, прискоривши інтеграцію технологій у сфери освіти, охорони здоров’я та економіки. Наведені результати дослідження дозволяють глибше зрозуміти, як цифровізація впливає на конкурентоспроможність та стійкість економік азійських країн.