bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prevalence and Factors Associated with Depression, Anxiety, and Stress among Undergraduate Management Students in Kathmandu, Nepal
Authors: Sharma Krishna , Shakya Anita 
Published: September 2022

Background The commonness of psychological illness occurring within the
university curriculum, along with the socioeconomic or behavioral status
of students, is growing with the development of the deteriorating
education system. It is gradually developing into a mental health issue
among undergraduate students in Nepal and poses a significant challenge
for public health globally. This research study aimed to determine the
prevalence and factors associated with depression, anxiety, and stress
among undergraduate management students in Kathmandu, Nepal. Methods:
Out of 600 sample sizes, 516 students participated in the descriptive
cross-sectional study carried out among undergraduate management
students in Kathmandu. Depression, anxiety, and stress were measured
using the DASS21 (depression, anxiety, and stress scale 21) tool,
designed for self-administered data collection in Nepali and English.
The questionnaire comprises four sections: socio-demographic
information, depression, anxiety, and stress, to measure the different
emotional states of the student.
Findings: The overall prevalence of depression, anxiety, and stress was
found to be 57.8 %, 60.9 %, and 43 %, respectively, among
undergraduate management students in Kathmandu, and most female students
experienced it in contrast to male students. Almost all students (100
%) who participated in the research study have experienced the
unnecessary pressure of college studies as the most significant cause of
depression, anxiety, and stress. Students, those having less family
income (< 20000 NPR per month), those breaking up with loved
ones, those having no daily physical exercise, and having pressured
college studies were at higher risk of experiencing depression (P=0.004,
P=0.007, P=0.023, and P=0.000 respectively). The prevalence rate of
extremely severe depression, anxiety, and stress was about 9.1 %, 23.8
%, and 7 %, respectively. Conclusion: The study found that
undergraduate management students in Kathmandu had high rates of
anxiety, depression, and stress. Special attention and necessary
psychological health intervention from their respective
colleges/universities and government sectors are highly recommended.
PENGUJIAN AKURASI GEOMETRI DAN MORFOLOGI BENIH SEMANGKA (Citrullus vulgaris) MENGGUNAKAN CITRA DIGITAL
Authors: Saputra Nurdiansyah Hadi , Masnang Andi , Jannah Asmanur , Rosyad Astryani 
Published: September 2022

Teknologi identifikasi varietas benih penting untuk menjamin benih yang digunakan petani memiliki mutu yang baik. Penelitian ini bertujuan untuk menguji akurasi geometri dan morfologi benih semangka (Citrullus vulgaris Schrad) serta menentukan parameter dasar yang tepat dalam identifikasi varietas dengan analisis diskriminan. Penelitian dilaksanakan di Universitas Nusa Bangsa. Penelitian ini menggunakan software Minitab dalam melakukan analisis diskriminan dengan tahapan uji kolerasi, uji multikolinieritas, dan uji diskriminan. Hasil penelitian menunjukkan terdapat delapan parameter geometri dan morfologi terpilih yang relatif kuat untuk membangun model analisis diskriminan. Analisis tersebut menghasilkan empat parameter terpilih sebagai acuan indentifikasi varietas benih semangka yakni area, feret angle, aspect ratio (AR) dan round. Sedangkan parameter terbaik yang digunakan untuk melakukan uji akurasi dalam mengidentifikasi varietas benih adalah area dan AR. Uji akurasi tersebut menghasilkan persentase tingkat akurasi tertinggi mencapai 83,33% dan tingkat akurasi terendah yang mencapai 41,67%. Hasil uji akurasi tersebut menjelaskan bahwa tingkat akurasi penggunaan teknologi citra digital dalam mengidentifikasi varietas benih semangka sudah cukup baik.
PENGARUH PEMBERIAN BIOCHAR BATANG SINGKONG DAN PEMUPUKAN P TERHADAP SERAPAN HARA N DAN K PADA TANAMAN JAGUNG (Zea mays L.)
Authors: Aswiguna Septian , Sarno Sarno , Afrianti Nur Afni , Supriatin Supriatin 
Published: September 2022

Biochar merupakan arang hitam hasil proses pemanasan biomassa pada keadaan oksigen terbatas atau tanpa oksigen. Penambahan biochar diketahui mampu meningkatkan ketersediaan hara tanah dan serapannya oleh tanaman. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian biochar batang singkong dan pemupukan P terhadap serapan hara N dan K pada tanaman jagung. Batang singkong merupakan limbah pertanian yang banyak belum termanfaatkan dengan baik oleh petani di Lampung. Penelitian ini dilaksanakan di Laboratorium Lapang Terpadu Universitas Lampung dan di Laboratorium Ilmu Tanah Fakultas Pertanian Universitas Lampung. Penelitian dirancang dengan rancangan faktorial (2 x 3) yaitu Rancangan Kelompok Teracak Lengkap (RKTL) dengan 3 ulangan. Faktor pertama adalah biochar (B) (B0= 0 ton ha-1; B1= 2,5 ton ha-1; dan B2= 5 ton ha-1). Faktor kedua adalah pemupukan P (P0 = 0 kg P2O5 ha-1; P1= 36 kg P2O5 ha-1 dan P2 = 72 kg P2O5 ha-1). Pembuatan biochar dilakukan di Balai Penelitian Tanah Taman Bogo Lampung Timur menggunakan alat Adam Retort Kiln. Hasil penelitian menunjukkan bahwa pemberian biochar batang singkong dapat meningkatkan serapan hara N pada tanaman jagung, pemupukan P dapat meningkatkan serapan hara N dan K pada tanaman jagung, dan tidak terdapat interaksi pemberian biochar batang singkong dan pemupukan P terhadap peningkatkan serapan hara pada tanaman jagung.
ALLYLDIPHENYLGUANIDINE COMPLEX WITH ARYLTELLURIUM THRICHLORIDE
Authors: Povidaichyk M. , Kut M. , Onysko M. , Lendel V. 
Published: September 2022

Functionalized acyclic and cyclic guanidines have a wide range of biological activity. In particular, they possess antitumor, antibacterial activities, are immunosuppressants, anesthetics, analgesics and analogues of natural alkaloids. The search of methods for the synthesis of new guanidine derivatives is an urgent problem.
The introduction of an unsaturated alkyl substituent to the guanidine backbone opens the way to the synthesis of heterocyclic compounds of the azole or azine series using the method of electrophilic heterocyclization under the action of halogen-containing electrophilic agents. For this purpose, N-allyl-N ',N' '- diphenylguanidine was synthesized according to the described procedure. Allyl substituted guanidines are able to cyclize under the action of iodine. The use of a chalcogen halogen-containing electrophile may lead to the formation of a potentially biologically active acyclic or heterocyclic guanidine derivative. For this purpose, p-methoxyphenyltellurium trichloride was used as an electrophilic agent.
Reaction of equimolar amounts of N-allyl-N',N''-diphenylguanidine and p-methoxy-phenyltellurium trichloride was performed in chloroform with a minor amount of THF. It was found that with 12 hours of reagents stirring, adducts of the substrate-electrophile composition 1: 1 are formed. The structure of the complex is proposed on a basis of spectral data and elemental analysis data. The increasing of the reaction time and temperature does not lead to the formation of addition or cyclization products.
Comparative evaluation of methods for osteosynthesis of diaphyseal radial fractures by the method of mathematical modeling
Authors: Neverov V. A. , Chernyaev S. N. , Kirillova I. V. , Krylova E. Yu. , Shinkarenko D. V. , Groholskiy N. V. , Chernyaeva A. S. 
Published: September 2022

RELEVANCE. The surgical treatment of patients with diaphyseal forearm fractures has a variety of methods and requires a precision technique. The need for postoperative immobilization after osteosynthesis of diaphyseal fractures remains a controversial issue, since osteosynthesis failure and the formation of a pseudoarthrosis are sometimes observed.In addition, very little information about the role of the interosseous membrane in the rotational function of the forearm during osteosynthesis is available in the literature.The OBJECTIVE was to determine the forces occurring during rotational movements of the forearm that lead to the above complications.METHODS AND MATERIALS. The clinical part included the results of surgical treatment of 330 patients with diaphyseal fractures of the forearm; it consisted of the main group (170 - interlocking osteosynthesis) and the comparison group (138 - plate osteosynthesis). The third group consisted of 22 patients with complications of surgical treatment of diaphyseal fractures of the forearm. We performed a comparative assessment of plate and interlocking osteosynthesis of radial bone fractures by mathematical modelling to determine the forces occurring during forearm rotation that lead to nonunion, instability and plate fractures.RESULTS. In the main group, healing was achieved in all (170 patients), in the comparison group, healing was achieved in 128 (92.8 %), consolidation was achieved in all 22 patients with fracture complications who underwent reconstruction. A comparative assessment revealed that during plate osteosynthesis, zones of high stress concentration were located around the plate opening above the area of fracture and the nearest to it holes from both sides. In interlocking osteosynthesis of the radius, the stresses are evenly distributed around the nail. Pronation-supination movements with an amplitude of (±90)°, according to the experimental results, should lead to the destruction of the cortical plate fairly soon after implantation, while the nail made of ultra-fine Ti-6Al-7Nb alloy will maintain its integrity.CONCLUSION. Based on these findings, external immobilization is advisable to avoid complications such as osteosynthesis instability or plate fracture.
Comparative Assessment of Local Accuracy of High-Order Spatial Schemes for Rotorcraft Aeroacoustics
Authors: Hong Yoonpyo , Park Soo Hyung , Yee Kwanjung 
Published: September 2022

High-order spatial schemes, which effectively treat the dissipative characteristics of computational fluid dynamics solvers, are known to assure the precise prediction of rotorcraft aeroacoustics. However, such schemes may differ in numerical performance, even if they have the same theoretical accuracy. This is because the nonlinear part in a high-order spatial scheme locally reduces the order of accuracy depending on the grid number and flow characteristics. Therefore, it is necessary to compare each scheme in terms of local accuracy and to identify which numerical characteristics are required to retain high-order accuracy. In this study, a local-order-of-accuracy index (LAI) is newly proposed to quantitatively measure the accuracy of a spatial scheme. The LAI represents the local accuracy of each scheme, including the effect of the grid number and local flowfield characteristics. A comparative assessment of five high-order spatial schemes is conducted using the LAI analysis. The resulting LAI analysis indicates two requisites for an aeroacoustic prediction of rotorcraft performance: 1) an advanced shock-sensing mechanism in each scheme, and 2) hybrid central-upwind characteristics. Details of the LAI analysis results are presented, including practical rotorcraft applications.
Analisis Perbandingan Mutu Eco Paving Block Berbahan Baku Limbah Plastik
Authors: Rahmi Siti Aulia , Lydia Ellida Novita , Purwandito Meilandy , Lisa Nova Purnama 
Published: September 2022

<p align="center"><strong>Abstrak</strong></p><p> </p><p class="11daftarpustaka">Plastik merupakan sampah anorganik yang sulit terurai dan akan terurai dalam kurun waktu puluhan atau ratusan tahun kemudian. <em>Paving block</em> merupakan salah satu bahan bangunan dengan komposisi campuran dari semen portland atau perekat hidrolis lainnya, air dan agregat dengan atau tanpa bahan tambahan lainnya yang tidak mengurangi mutu dari beton tersebut (SNI, 1996). Penelitian ini bertujuan untuk mengetahui sifat mekanik <em>paving block</em> dengan campuran tanah lempung dan limbah plastik dan pengaruh dari jenis plastik yang digunakan terhadap mutu <em>paving block</em> yang dihasilkan. Hasil penelitian menunjukkan bahwa nilai kuat tekan tertinggi <em>paving block </em>campuran tanah lempung dan plastik LDPE dengan perbandingan 75% : 25% yaitu 9,59 MPa kuat tekan tertinggi pada campuran tanah lempung dan plastik PP dengan perbandingan 100% : 0% yaitu 9,18 MPa. Jenis plastik yang dipergunakan mempengaruhi mutu <em>paving block</em>. <em>Paving block</em> pada penelitian ini termasuk dalam mutu D dapat digunakan pada konstruksi taman berdasarkan SNI 03-0691-1996.</p><p class="11daftarpustaka"> </p><p>Kata kunci: <em>Plastik, tanah lempung, paving block</em><strong></strong></p><p align="center"><strong> </strong></p><p align="center"><strong> </strong></p><p align="center"><strong> </strong></p><p align="center"><strong>Abstract</strong></p><p align="center"><strong> </strong></p><p>Plastik is inorganic waste that is difficult to decompose and will decompose within tens or hundreds of years later. Paving block is a building material with a mixed composition of portland cement or other hydraulic adhesives, water and aggregates with or without other additives that do not reduce the quality of the concrete. This study aims to determine the mechanical properties of paving blocks with a mixture of clay and plastik waste and the effect of the type of plastik used on the quality of the paving blocks produced. The results showed that the highest compressive strength value of paving blocks mixed with clay and LDPE plastik with a ratio of 75%: 25%, namely 9.59 MPa, the highest compressive strength was in a mixture of clay and PP plastik with a ratio of 100%: 0%, namely 9.18 MPa. . The type of plastik used affects the quality of paving blocks. Paving blocks in this study are classified as D quality and can be used in garden construction based on SNI 03-0691-1996</p><p class="11daftarpustaka"> </p><p class="11daftarpustaka">Keywords: <em>Plastik, clay, paving block</em></p><em></em><em></em>
EFFECT OF COOPERATIVE LEARNING MODELS OF STUDENT FACILITATOR AND EXPLAINING IN BILINGUAL LEARNING UPON THE THEMATIC LEARNING ACHIEVEMENT OF CLASS V
Authors: Noge Maria Desidaria , Oli Yohanes Mite , Wau Maria Patrisia 
Published: September 2022

This research aimed at finding out the effect of cooperative learning models of Student Facilitator and Explaining in Bilingual learning of the thematic learning achievement of class V in the group VI district of Boawae District Nagekeo. This research was experimental research using the research design of pseudo experiments, with the research draft "Posttest Only Control Group Design". The subject in this study was students class V of Padhapae Primary School as an experimental group totaled 28 students, and Raja Primary School students as a control group totaled 25 students. Test result data were analyzed by statistics descriptive quantitative. From the results of the analysis obtained t-test value 4.038 is greater than 2.021, with its significance value was 0.000 smaller than 0.05, then the decision was H0 refused and H1 accepted. Based on the posttest results in the experimental group gained an average of 72.35 while the control group gained an average of 60.64. The hypothesis test results showed that there was a significant influence in the implementation of a cooperative learning model for Student Facilitator And Explaining in Bilingual learning of the thematic learning achievement of the V-class students in Boawae subdistrict. Nagekeo Regency.
EFEKTIVITAS ANTIVIRUS CORONA BERBASIS EUCALYPTUS DI INDONESIA
Authors: Choir AM Imamul 
Published: September 2022

ABSTRAK
COVID-19 adalah penyakit yang disebabkan oleh Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) dan menyerang pada sistem pernapasan. Gejala awal dari penyakit ini antara lain batuk, demam, nyeri pada tenggorokan, sakit kepala, hilangnya indra perasa dan penciuman. COVID-19 (Corona Virus Disease 2019) pertama kali ditemukan di Wuhan, China pada akhir Desember 2019. Epidemi menyebar dengan cepat diseluruh dunia dalam 3 bulan dan dicirikan sebagai pandemi oleh WHO. Hingga saat ini vaksin masih melalui tahap uji dan masih belum berhasil. Beberapa upaya pembuatan antivirus untuk COVID-19 telah dilakukan Kementerian Pertanian di Indonesia. Diantaranya dengan menggunakan tanaman eucalyptus yang memiliki potensi ampuh melawan virus. Minyak atsiri eucalyptus memiliki senyawa 1,8-cineole (eucalyptol) yang merupakan komponen utama dari minyak atsiri dan ditemukan dalam daun eucalyptus dan Senyawa ini memiliki aktivitas antivirus, anti-inflamasi, dan antimikroba. Senyawa eucalyptol dapat berfungsi menghambat replikasi coronavirus dengan mengikat protein Mpro yang terdapat pada virus. Protein tersebut berperan dalam pematangan virus dan pembelahan polyprotein virus sehingga dapat mencegah penyebaran infeksi.
ОСОБЛИВОСТІ ФОРМУВАННЯ ВЛАСТИВОСТЕЙ МОЛОЧНО-ЖИРОВИХ ЕМУЛЬСІЙ ДЛЯ ВИРОБНИЦТВА ВЕРШКОВИХ ПАСТ ІЗ ДОДАВАННЯМ СТАБІЛІЗУЮЧИХ СИСТЕМ
Authors: Боднарчук Оксана 
Published: September 2022

Завдяки оптимізації співвідношення стабілізаторів структури можна регулювати склад і властивості вихідної сировини як основи для молочно-жирових емульсій. Порівняльна оцінка фізико-хімічних властивостей молочно-жирових емульсій та високожирних вершків дає можливість спрогнозувати їх потенційну можливість до перетворення у вершкові пасти з завданою консистенцією. Мета роботи – дослідження фізико-хімічних властивостей молочно-жирових емульсій як основи для виробництва вершкових паст. Предмет досліджень:. зміни фізико-хімічних властивостей (ефективна в’язкість, седиментаційна стійкість) та органолептичних властивостей (консистенції, смаку) вершків з м.ч. жиру 35% залежно від використання різних доз стабілізуючих систем: колоїдану QNA як стабілізатора консистенції у кількості від 0,5 до 1,5% та емульгатора дімодану U/G – від 0 до 1,0% («Danisco», Данія). Методи досліджень: фізико-хімічні властивості (ефективна в’язкість, седиментаційна стійкість). Результати досліджень. Досліджено склад і властивості вершків з різою масовою часткою жиру від 70% до 30%. Встановлено, що зниження масової частки жиру та, відповідно, збільшення плазми у вершках, призводить до значних змін фізико-хімічних показників, які характеризують стан жирової емульсії. У зв’язку з цим для виробництва продуктів маслоробства пониженої жирності необхідне регулювання властивостей вершків. Проведено математичне моделювання, спрямоване на встановлення доз для поліпшення властивостей молочно-жирових емульсій, підвищення процесу структуроутворення і подальшого забезпечення необхідної консистенції вершкових паст. Визначено оптимальні дози спільного використання колоїдану QNA як стабілізатора консистенції і емульгатора дімодану U/G. Встановлено, що їх вміст має бути: для паст з м.ч. жиру 35% – 1,0+0,5%. За показниками ефективної в’язкості визначено ефективність спільної дії стабілізаторів консистенції і емульгаторів при отриманні молочно-жирових емульсій. Причому застосування емульгатора менше впливало на ефективну в’язкість молочно-жирових емульсій. Встановлено, що зміна досліджуваних показників (ефективна в’язкість, седиментаційна стійкість) завдяки використанню стабілізаторів структури для наближення їх до показників високожирних вершків з масовою часткою жиру 70% може поліпшити умови для стабілізації структуроутворення низькожирних продуктів та формування бажаної пастоподібної консистенції.
Typification of Kherson region by water availability for irrigation and its environmental consequences
Authors: Shevchenko A. M. , Bozhenko R. P. , Lyutnitsky S. M. 
Published: September 2022

. The article presents the results of regional typification for the Kherson region by water availability for irrigation, taking into account the possible environmental risk as a result of the increase in irrigated area. The grouping of the territories previously differentiated by water availability into the following subtypes was performed: low rate of natural surface and groundwater water availability; sufficient rate of groundwater availability variously suitable for irrigation; high level of transit river flow availability; provided water supply of different quality from irrigation sources. Also, the territory grouping was made by the zones of ecological risk according to ecological and amelioration qualifications along with the separation of admissible ecological risk zones (potentially conditionally unstable areas with good ecological and reclamation conditions), zones of increased ecological or potentially unstable areas with the satisfactory and endangered condition), zones of sustainable ecological risk (potentially unstable areas with the unsatisfactory or very unsatisfactory land condition), zones of ecological crises development (potentially very unstable with the very unsatisfactory land condition).
It was specified that within the Kherson region predominate the areas with low natural water supply from local surface flow in combination with the zones of increased ecological risk (Kakhovka irrigation zone) or with the zones of stable ecological risk (Oleksandrivska irrigation zone, Kalanchak irrigation system). Additional surface water supply for irrigation is provided by the main canals from the Kakhovka reservoir. Further increase in irrigation areas within these typological territories, on the one hand, can be provided with available resources on the other hand, may lead to deterioration of ecological and reclamation condition of irrigated land and aggravation of water and ecological situation, first of all, rising groundwater level.
Substantiation of optimal parameters of horizontal systematic drainage in modern water management and climatic conditions in the south of Ukraine
Authors: Babitska O. A. , Kharlamov O. I. , Savchuk D. P. , Kotykovych I. V. , Voropay G. V. 
Published: September 2022

Changes in the conditions of natural water supply and unsatisfactory technical conditions of horizontal systematic drainage systems have led to their inability to perform the necessary functions in full. In this regard, the issues of determining the optimal parameters of the collector-drainage network (distances between drains, their specific length, and diameters) become relevant. The research work is based on the results of field research on the effectiveness of drainage in the southern region of Ukraine, which includes Ingulets, Kakhovka, North Rogachytsia, Tatarbunary irrigation systems, and the irrigation zone of the North Crimean Canal. Based on the research, a method for determining the optimal parameters of systematic horizontal drainage has been developed and proposed, which takes into account modern precipitation rates, irrigation methods, and irrigation rates for crops. Optimization of drainage parameters is to determine such parameters, having which the capital investment in construction would be minimal while ensuring the groundwater level is below critical depths. Based on the research results when calculating the distance between drains, nomograms were made to determine the main parameters of the systems of systematic horizontal drainage of the perfect and imperfect types under different water conditions. The calculations were performed for the soils with filtration coefficients from 0.01 to 30 m/day. Based on the analysis of nomograms, it was found that the main factors influencing the distance between drains for horizontal drainage systems are filtration coefficient, drainage rate, and distance to impermeable rocks. Nomograms enable to quickly perform calculations of the main parameters of systematic horizontal drainage systems, taking into account modern conditions of water supply and to specify the estimated cost of system construction.