bluuebunny/crossref_metadata_2025_split huggingface dataset:
DEVELOPMENT OF STEM-BASED THERMODYNAMICS E-MODULES INTEGRATED WITH PROBLEM SOLVING TO IMPROVE CRITICAL THINKING SKILLS AND LEARNING OUTCOMES
Authors: Parwiti Endang , Siregar Tiurlina , Albaiti Albaiti 
Published: November 2024

Abstract: This study aims to determine how to create, develop and feasibility of STEM-based thermodynamics e-modules integrated with problem solving in improving critical thinking skills and learning outcomes of class XI students of SMA YPK Bintuni. The research method is research and development (R&D) by adopting five stages of the ADDIE model (analyze, design, develop, implement and evaluate). The instruments used in the study were e-module feasibility test sheets, learning outcome tests and critical thinking ability test results for the trial use of e-modules. E-modules were analyzed empirically using the SPSS version 20 application. The developed e-modules have been validated using a Likert scale on aspects of content feasibility, language feasibility and presentation feasibility. The sampling technique was purposive sampling, with a research sample of class XI IPA SMA YPK Bintuni with a total of 20 people. The results showed that the developed STEM-based Thermodynamics e-module integrated with problem solving was very feasible to be used in learning with an average validator assessment of 90%. The Thermodynamics e-module is practical to use and effective in improving critical thinking skills and student learning outcomes, obtaining n-Gain of 0.53 in the medium category and 0.71 in the high category respectively.

Keywords: E-module, Thermodynamics, critical thinking skills, problem solving, STEM.

Abstrak: Penelitian ini bertujuan untuk mengetahui cara membuat, mengembangkan dan kelayakan e-modul termodinamika berbasis STEM terintegrasi problem solving dalam meningkatkan kemampuan berpikir kritis dan hasil belajar peserta didik kelas XI SMA YPK Bintuni. Metode penelitian ini adalah research and devolopment (R&D) dengan mengadopsi lima tahapan model ADDIE (analyze, design, devolopmnet, implemention dan evaluation). Instrumen yang digunakan pada penelitian adalah lembar uji kelayakan e-modul, tes hasil belajar dan tes hasil kemampuan berpikir kritis peserta didik untuk uji coba penggunaan e-modul. E-modul dianalisis secara empirik menggunakan aplikasi SPSS versi 20. E-modul yang dikembangkan telah divalidasi menggunakan skala likert pada aspek kelayakan isi, kelayakan bahasa dan kelayakan penyajian. Teknik pengambilan sampel adalah purposive sampling, dengan sampel penelitian kelas XI IPA SMA YPK Bintuni dengan jumlah 20 orang. Hasil penelitian menunjukkan bahwa e-modul Termodinamika berbasis STEM terintegrasi problem solving yang dikembangkan sangat layak untuk digunakan dalam pembelajaran dengan rata-rata penilaian validator sebesar 90%. E-modul Termodinamika tersebut praktis digunakan, dan efektif untuk meningkatkan kemampuan berpikir kritis dan hasil belajar peserta didik memperoleh n-Gain masing-masing 0,53 kategori sedang dan 0,71 kategori tinggi.

Kata kunci: E-modul, Termodinamika, kemampuan berpikir kritis, problem solving, STEM
Current state of exploration and development of oil and gas fields in the Caspian sea
Authors: Serikova U. S. , Aliyev E. M. , Potemkin G. N. , Belyaeva A. S. , Romanov P. A. 
Published: November 2024

Background. The current state of exploration and development of oil and gas fields in the Caspian Sea is considered. Aim. Identification of new engineering and technological features of exploration and development of oil and gas fields in the Caspian Sea. Materials and methods. An analysis and typification of mining and geological conditions and parameters of oil and gas deposits, as well as traps and reservoirs, was carried out. The current state of oil and gas exploration and development in the Caspian Sea was assessed by statistical generalization and systematization of data and materials, partially borrowed from reference literature, stock sources, field data, and published works. Results. The conducted analysis revealed the main engineering and technological features of the current state of exploration and development of oil and gas fields in the Caspian Sea. These include the creation of special hydraulic structures and floating technical equipment, taking harsh marine hydrometeorological conditions for drilling prospecting, exploration and production wells into account; drilling directional clusters of wells from individual stationary platforms, pier platforms, artificially created islands, jack-up-type and semi-submersible floating installations and other structures both above and below water; selection of a rational design and number of stationary platforms, pier platforms, floating production decks, and other structures for placing the optimum number of wells; creation of special engineering means and technological processes, as well as floating installations that ensure the protection of the marine environment during drilling operations, borehole operation and repair. The need for platforms in the Caspian Sea as a whole in the period until 2025 is estimated at 71–87 units.
Petrochemical characteristics of ancient weathering crusts with scandium concentrations in the Nakyn kimberlite field
Authors: Eremenko R. U. , Ignatov P. A. , Illarionov P. N. 
Published: November 2024

Background. The study examines the petrochemical characteristics of clayey deposits from the Dyakhtar Formation in the Nakyn Kimberlite Field, which contain material from redeposited weathering crusts of the Late Triassic to the Early Jurassic age. Currently, this Formation is considered the most promising for scandium mineralization compared to other areas in the Malo-Botuobinsky and Ygyattinsky diamond-bearing regions of Yakutia with the identified scandium concentrations. Aim. To establish the geochemical characteristics of scandium concentrations in the sediments of the Dyakhtar formation of the Nakyn kimberlite field. Materials and methods. Using petrochemical modules, 9022 X-ray fluorescence analyses of rocks of the Dyakhtar formation were analyzed, performed at the Vilyui Geological and Exploration Laboratory of ALROSA, Results. The recalculation of the petrochemical modules has revealed that the Dyakhtar Formation comprises the following components in different proportions: clayey rocks (42 %), clayey silicites (31 %), weak clayey silicites (15 %), hydrolyzate clayey rocks (9 %) with an admixture of silicites (4 %). The vast majority of samples with scandium concentrations exceeding 100 g/t were found in hydrolyzate clayey rocks (83 %), which contain products of mature weathering crusts. In addition, scandium-bearing rocks are characterized by formation under continental conditions, by normaliron content and lack of translocation, as well as a weak alkaline environment. Conclusion. The observed systematic changes in the correlation coefficients Sc/V, Sc/Ti, Sc/K, and Sc/Rb with increasing scandium concentrations suggest probable forms of scandium occurrence in vanadium-bearing titanomagnetite and its sorption in montmorillonite.
KAJIAN PROFESIONALISME KERJA APARATUR SIPIL NEGARA (ASN) DALAM KONSEP PELAYANAN PUBLIK YANG IDEAL
Authors: Suri Evsa Wulan , Darmawi Edi , Gaevan M 
Published: November 2024

Profesionalisme kerja merupakan hal penting yang harus dipatuhi dan diterapkan oleh Apartur negeri Sipil sebagai bentuk patuh etika birokrasi melalui perwujudan pelayanan publik yang ideal. Penelitian ini untuk menganalisis mendeskripsikan profesionalisme kerja Aparatur Sipil Negara (ASN) dalam pelayanan publik yang ideal di Kelurahan Sido Mulyo Kec. Gading Cempaka Kota Bengkulu. Penelitian ini termasuk dalam penelitian kualitatif. Penelitian ini dilakukan di Kelurahan Sido Mulyo Kecamatan Gading Cempaka Kota Bengkulu. Metode penelitian menggunakan metode penelitian kualitatif dengan pendekatan deskriptif berlandaskan pada filsafat postpositivisme, dengan teknik pengumpulan data primer dan sekunder. Penelitian ini berupaya mengkaji pelaksanaan profesionalisme pelayanan publik yang dilakukan oleh Aparatur Sipil Negara (ASN) di Kelurahan Sido Mulyo dalam meningkatkan pelayanan publik. Hasil penelitian ini memberikan pengukuran profesionalisme kerja melalui komitmen pegawai, sarana prasarana, teknologi informasi dan keadalan yang sudah cukup baik namun perlu ditingkatkan rasa komitmen, tanggung agar terpenuhi komponen penyedia layanan, penerima layanan, jenis layanan, dan kepuasanan pelanggan yang diharapkan.
REKRUTMEN POLITIK PEREMPUAN PADA PEMILU LEGISLATIF STUDI PEREMPUAN PARTAI DEMOKRAT PROVINSI JAMBI TAHUN 2019
Authors: Pratiwi Cholillah Suci , Beriansyah Alva , Muhammad Hatta Abdi 
Published: November 2024

Penelitian ini mengkaji tentang ‘Rekrutmen Politik Perempuan Pada Pemilu Legislatif: Studi terhadap Perempuan Partai Demokrat Provinsi Jambi Tahun 2019’. Penelitian ini berangkat dari temuan bahwa Partai Demokrat Provinsi Jambi berhasil mendudukkan kader perempuannya sebagai anggota DPRD Provinsi Jambi di urutan teratas dibanding partai politik lainnya. Namun hal tersebut diduga karena memanfaatkan jejaring keluarga kandidat yang telah mapan secara aspek sosial, politik dan kapital. Penelitian ini dmenggunakan metode kualitatif deskriptif dengan mengkombinasikan kekuatan data primer dan sekunder. Hasil penelitian ini menunjukkan bahwa rekrutment yang dilakukan Partai Demokrat adalah rekrutmen sistem terbuka. Akan tetapi, sistem rekrutmen Partai Demokrat Provinsi Jambi sangat inkonsistensi dengan ideologi dan platform partai yg mengusung gagasan nasionalis religious. Dalam rekrutmenm perempuan menjadi anggota partai, Demokrat mengalami kesulitan karena umumnya perempuan di jambi tidak ada ketertarikan dengan Parpol. Sehingga perempuan yang memiliki karir secara profesional bagus di pekerjaan mereka, cenderung tidak masuk Parpol. Hal ini menyebabkan Partai Demokrat mayoritas anggota perempuannya adalah pedagang kecil UMKM (wiraswasta). Untuk dicalonkan ke legislatif provinsi, cara yang dilakukan Demokrat adalah mencalonkan mereka yang memiliki jejaring keluarga yang sudah mengakar secara kapital yang besar dan modal sosial yang sudah mengakar. Hal ini dibuktikan dengan adanya 3 caleg perempuan Partai Demokrat yang terpilih di legislatif DPRD Provinsi, kesemuanya karena dinasi keluarga.
Study of component features of essential oils of Rosmarinus officinalis and Salvia sclarea of Crimean origin
Authors: Ermachenkov R. E. , Markov A. L. , Agaev M. M. , Burtseva E. V. , Terninko I. I. 
Published: November 2024

Introduction. Chromatographic profiling is the most efficient way to authenticate essential oils, the key limitation of which is the number of chromatographic profiles developed. The profiling methodology allows to take into account the geographical variability of essential oils by differentiating the profile into essential oilseed growing zones. Despite the presence of developed chromatographic profiles at the moment there is no information about the possible geographical variability of the demanded essential oils of clary sage and rosemary, obtained from local essential oilseed raw materials.Aim. Comparative study of the component composition of essential oils of clary sage and rosemary produced from raw materials of Russian and foreign origin for the characterisation of domestic essential oils.Materials and methods. The essential oils were analysed on the software and hardware complex of the gas chromatograph "Crystal 5000.2" with flame ionisation detection. Separation was carried out on a capillary column HP-5MS UI and on a capillary column DB-WAX. The components were identified by comparing the calculated linear retention indices obtained on two columns of different polarity with reference values.Results and discussion. The analysis of the essential oils of clary sage and rosemary identified 42 and 33 compounds, on average representing 93.7 and 96.2 % of all sample components, respectively. For the samples of clary sage of Crimean origin, a number of patterns were noted, potentially suitable for separating its component composition from essential oils of other origin. Based on the study of the component composition of the essential oil of rosemary Crimean origin, it is suggested that it is attributed to the essential oil of rosemary Spanish type in accordance with ISO and Ph.Eur.Conclusion. The results of the study allowed to put forward a number of assumptions regarding the possibility of isolation of a specific chromatographic profile of essential oils of clary sage and rosemary from Crimea. Further experimental verification of the put forward assumptions will allow to determine the possibility of introducing clear classification criteria for oils of Crimean origin.
Identifikasi Bacillus sp. Yang Diisolasi Dari Madu Liar
Authors: Ningtyas Novarina Sulsia Ista'In , Andrianto Memo , Agustin Alfiana Laili Dwi , Mutmainnash Mutmainnash 
Published: November 2024

Madu merupakan cairan manis yang didapatkan dari bagian tumbuhan yang disimpan di saram lebah. Manfaat madu sebagai antioksidan, antimikroba, regulator gula darah dan membantu meningkatkan imun tubuh. Madu yang beredar dan banyak dimanfaatkan oleh manusia bersal dari madu liar dan madu budidaya. Madu liar didapatkan dari alam liar dengan kata lain tidak dibudidayakan. Sebagian besar madu liar didapatkan dan dikemas secara tradisional. Hal ini dapat memicu adanya kontaminasi salah satunya bakteri. Penelitian ini bertujuan untuk mengidentifikasi Bacillus sp. yang terdapat pada 10 sampel madu liar dengan metode biokimia. Bakteri yang telah ditumbuhkan pada media agar kemudian akan diuji Katalase, uji Glukosa, uji Manitol,Laktosa, Sukrosa, Maltosa, SIM, Urea, SC, TSIA, dan Arabinosa. Hasil pada penelitian ini mendapatkan 3 jenis Bacillus yaitu 8 sampel Bacillus cereus (80%), 1 sampel Bacillus licheniformis (10%), 1 sampel Bacillus coagulans (10%).
Pengaruh Pengencer Skim Milk Pada Semen Sapi Bali Dengan Waktu Penyimpanan Berbeda Terhadap Kualitas Spermatozoa Di Balai Inseminasi Buatan Banyumulek Provinsi Nusa Tenggara Barat
Authors: Wiguna Akmal , Janah Maratun , Atma Candra Dwi , Munawaroh Muhammad 
Published: November 2024

Skim milk atau susu skim merupakan pengencer yang dapat digunakan untuk mempertahankan dan melindungi spermatozoa selama penyimpanan agar dapat digunakan dalam proses inseminasi buatan. Penelitian ini dilaksanakan di Laboratorium Balai Inseminasi Buatan Banyumulek Provinsi Nusa Tenggara Barat pada tanggal 15 – 26 Maret 2024. Semen di tampung dari seekor bull sapi bali dewasa dengan umur 5 tahun dengan kondisi sehat. Metode yang digunakan dalam penelitian ini adalah metode eksperimen tal dengan menggunakan rancangan acak lengkap (RAL) yang terdiri dari 1 variabel kontrol (P0), 4 perlakuan dan 6 ulangan. Variabel yang di ukur adalah motilitas dan viabilitas, data diolah dengan menggunakan microsoft excel. Hasil yang diperoleh pada perlakuan P1 menggunakan pengencer skim milk dengan waktu simpan 24 jam pada suhu 5ºC masih memenuhi persyaratan produksi karena motilitas spermatozoa di atas 70%. Sedangkan pada perlakuan P2 (48 jam), P3 (76 jam) dan P4 (96 jam) tidak layak untuk di produksi karena motilitas yang di hasilkan berada di bawah 70%. Akan tetapi viabilitas menunjukan adanya penurunan pada semua sampel.
Sistem Pengendalian Waktu Penyiraman Otomatis pada Tanaman Cabai Rawit Menggunakan Metode Fuzzy Logic
Authors: Prihartono Edi , Oktafianto Dimas Pondra 
Published: November 2024

Cabai rawit merupakan salah satu komoditas sayuran yang sangat dibutuhkan oleh masyarakat Indonesia dalam kehidupan sehari-hari. Cara penyiraman saat ini dilakukan petani secara manual, hal ini pengukuran kelebaban tanah, suhu dan waktu oleh petani kurang tepat, sehingga jumlah air yang diberikan tidak sesuai dengan yang dibutuhkan oleh tanaman cabai rawit. Pada penelitian ini penulis membuat sistem pengendalian waktu penyiraman secara otomatis sebagai alat yang dapat membantu petani dalam melakukan penyiraman dan memonitoring kelembaban tanah serta suhu melalui website. Pada sistem ini menggunakan dua sensor yaitu sensor kelembaban tanah dan sensor suhu yang digunakan untuk mendeteksi kelembaban tanah dan suhu udara pada tanaman cabai rawit. Sistem menggunakan metode fuzzy logic untuk memproses data kelembaban tanah dan suhu yang diperoleh, untuk menghasilkan durasi penyiraman yang sesuai dengan kebutuhan tanaman. Dari hasil pengujian perangkat dengan aplikasi matlab, selisih durasi penyiraman pada fase 1 adalah 0.12 detik sedangkan pada fase 2 adalah 0.06 detik. Dari pengujian tersebut baik fase 1 maupun fase 2 mempunyai selisih di bawah 1 detik, sehingga dapat disimpulkan bahwa perangkat berjalan dengan baik. Sedangkan hasil pengujian selama 33 hari pada objek tanaman cabai rawit dengan 3 cara penyiraman. Untuk tanaman cabai rawit ke 1 (T1) yang penyiramannya menggunakan sistem, jumlah bunga bakal buah cabai berjumlah 4 bunga, sedangkan tanaman cabai rawit dengan penyiraman secara manual (T2 dan T3) bunga bakal buah belum muncul Sedangkan untuk tinggi dan jumlah daun lebih unggul pada tanaman ke 2 (T2) dan 3 (T3).
Role of Alternative Splicing in Oncogenesis
Authors: Kudelina O. M. , Safronenko A. V. , Burayeva M. Kh.-B. , Burayeva M. Kh.-B. , Velichko S. A. , Terekhova D. , Benderskii N. S. , Tolstoy A. A. 
Published: November 2024

Over the past two decades, much evidence has accumulated that confirms the crucial role of alternative splicing in the process of tumorigenesis. A more detailed study of splicing mechanisms revealed that targeting the central process for atypical cells could be a potential new approach in the treatment of malignant neoplasms. Firstly, specific protein isoforms that are formed as a result of alternative splicing and are involved in tumorigenesis can potentially act as a target for the treatment of malignant neoplasms. Second, high rates of cell proliferation presumably make tumor cells highly dependent on a functional spliceosome, creating potential hypersensitivity to global splicing modulation. The study of the role of alternative splicing in tumorigenesis and the search for therapeutic targets contributed not only to the development of a more promising direction in oncology, but also to the search for new drugs that have a targeted effect on the development of malignant neoplasms.
Influence of Ajuga turkestanica and Asparagus racemosus Phytoextracts on the Effectiveness of Aerobic–Anaerobic Training Regime
Authors: Alekseeva Yu. S. , Melnikova Yu. D. , Kolikova A. R. , Bolotova V. Ts. , Spasenkova O. M. 
Published: November 2024

In this work, we study the effect of Asparagus racemosus (EAR) and Ajuga turkestanica (EAT) dry extracts at a dose of 100 mg/kg in comparison with a Rhaponticum carthamoides extract (ERC) on the effectiveness of an aerobic–anaerobic training regimen in female mice in a triple-weight loaded exhaustive swim test with a 10% load of body weight, as well as on the level of malondialdehyde and catalase activity in blood hemolysate, cardiac and skeletal striated muscle tissue, and liver homogenate. The results obtained indicate a reduced severity of lipid peroxidation under the influence of dry EAR and EAT extracts, thus pointing to the antioxidant activity of the extracts. In the conducted triple-weight loaded exhaustive swim test, a statistically significant increase in the duration of swimming No. 3 and the test index was noted in both groups compared to the control. Therefore, it can be concluded that the studied extracts have a positive effect on the first-phase recovery processes.
N-Carbamoyl Glutamate Prevents Ammonia Intoxication in Piglets with Reduced Liver Function
Authors: Ostrenko K. S. 
Published: November 2024

Ammonia as the end product of protein catabolism has a depressing effect on neurons. Ammonia neutralization in mammals occurs in the ornithine cycle, the activity of which is regulated mainly at the level of synthesis of N-Carbamoyl phosphate. The Krebs cycle is coupled with the ornithine cycle through a common substrate—arginine succinate. Therefore, the effects of ammonia neutralization and the processes of amino acid and energy metabolism are largely interrelated. This study is aimed at evaluating the efficacy of an N-carbamoyl glutamate additive in terms of optimizing metabolic processes and improving ammonia neutralization in suckling piglets. The experiment was conducted on two groups of piglets (n=15) formed at the age of 24 hours. Piglets in the experimental group were fed with an aqueous solution of the drug at a dose of 10 mg/kg of body weight once daily. The duration of feeding the supplement was 30 days; the average daily gain in body weight was determined at weaning at the age of 30 days. An analysis of the blood biochemical composition was carried out on the 30th day from the onset of the experiment. At the end of feeding the supplement in the experimental group, a decrease in the content of ammonia (p<0.05) and urea in blood plasma, an increase in the concentration of arginine (p<0.05) and triacylglycerols (p<0.05) in comparison with the control group was revealed. The N-carbamoyl glutamate additive under study stimulates the endogenous production of the arginine essential amino acid, neutralizes ammonia formed in metabolic processes, and optimizes the amount of metabolic energy spent on binding ammonia in the urea cycle.
The relationship between dietary vitamin B1 intake and severe abdominal aortic calcification among the general population in the United States
Authors: Li Hanbo , Li Ruihua , Gong Changle , Wu Zhe , Jia Qiang 
Published: November 2024

BackgroundVitamin B1 deficiency is closely associated with vascular system damage, but the relationship between dietary vitamin B1 intake and abdominal aortic calcification (AAC) remains unclear and warrants further investigation.Methods2,640 participants from the National Health and Nutrition Examination Survey (NHANES) 2013–2014 were included in the study. Severe AAC was defined as Kauppila score &gt;5. Multivariable logistic regression analysis and restricted cubic splines (RCS) were used to examine the relationship between dietary vitamin B1 and severe AAC.ResultsThe increase in dietary intake of vitamin B1 is significantly correlated with a decrease in the risk of severe AAC (OR: 0.601, 95% CI: 0.406, 0.892). Compared to the first quartile of dietary vitamin B1 intake, the fourth quartile had a significantly reduced risk of severe AAC (OR: 0.358, 95% CI: 0.172, 0.744). RCS indicated a decreasing trend in the risk of severe AAC with increasing dietary vitamin B1 intake.ConclusionOur research findings indicate that the increase in dietary intake of vitamin B1 is significantly associated with a decrease in the risk of severe AAC. Thus, increasing dietary vitamin B1 intake appropriately may reduce the risk of severe AAC.
Case Report: A rare diffuse mitral valvular myxoma
Authors: Dou Dongqing , Wu Jun , Yuan Wei , Wu Haibo , Wang Qimin 
Published: November 2024

Cardiac myxoma is a common benign tumor, however, myxoma extensively distributed on the mitral valve is rare and seldom reported. A patient who presented with exertional dyspnea and chest tightness was examined by transthoracic and transesophageal echocardiography successively. Multiple neoplasms on the mitral valve with moderate mitral regurgitation were found and were further proved to be a diffuse myxoma on the mitral valve by histology. Three-dimensional transesophageal echocardiography provided a precise evaluation of the mitral valve neoplasms, contributing to clinical decision-making.