bluuebunny/crossref_metadata_2025 huggingface dataset:
Autonomous Detection of Humans in Off-Limits Mountain Areas
Authors: Kim Jonghoek
Published: January 2024

This paper is on the autonomous detection of humans in off-limits mountains. In off-limits mountains, a human rarely exists, thus human detection is an extremely rare event. Due to the advances in artificial intelligence, object detection–classification algorithms based on a Convolution Neural Network (CNN) can be used for this application. However, considering off-limits mountains, there should be no person in general. Thus, it is not desirable to run object detection–classification algorithms continuously, since they are computationally heavy. This paper addresses a time-efficient human detector system, based on both motion detection and object classification. The proposed scheme is to run a motion detection algorithm from time to time. In the camera image, we define a feasible human space where a human can appear. Once motion is detected inside the feasible human space, one enables the object classification, only inside the bounding box where motion is detected. Since motion detection inside the feasible human space runs much faster than an object detection–classification method, the proposed approach is suitable for real-time human detection with low computational loads. As far as we know, no paper in the literature used the feasible human space, as in our paper. The outperformance of our human detector system is verified by comparing it with other state-of-the-art object detection–classification algorithms (HOG detector, YOLOv7 and YOLOv7-tiny) under experiments. This paper demonstrates that the accuracy of the proposed human detector system is comparable to other state-of-the-art algorithms, while outperforming in computational speed. Our experiments show that in environments with no humans, the proposed human detector runs 62 times faster than YOLOv7 method, while showing comparable accuracy.
In Vitro and Ex Vivo Synergistic Effect of Pyrvinium Pamoate Combined with Miltefosine and Paromomycin against Leishmania
Authors: Melcón-Fernández Estela , Galli Giulio , Balaña-Fouce Rafael , García-Fernández Nerea , Martínez-Valladares María , Reguera Rosa M. , García-Estrada Carlos , Pérez-Pertejo Yolanda
Published: January 2024

One of the major drawbacks of current treatments for neglected tropical diseases is the low safety of the drugs used and the emergence of resistance. Leishmaniasis is a group of neglected diseases caused by protozoa of the trypanosomatidae family that lacks preventive vaccines and whose pharmacological treatments are scarce and unsafe. Combination therapy is a strategy that could solve the above-mentioned problems, due to the participation of several mechanisms of action and the reduction in the amount of drug necessary to obtain the therapeutic effect. In addition, this approach also increases the odds of finding an effective drug following the repurposing strategy. From the previous screening of two collections of repositioning drugs, we found that pyrvinium pamoate had a potent leishmanicidal effect. For this reason, we decided to combine it separately with two clinically used leishmanicidal drugs, miltefosine and paromomycin. These combinations were tested in axenic amastigotes of Leishmania infantum obtained from bone marrow cells and in intramacrophagic amastigotes obtained from primary cultures of splenic cells, both cell types coming from experimentally infected mice. Some of the combinations showed synergistic behavior, especially in the case of the combination of pyrvinium pamoate with paromomycin, and exhibited low cytotoxicity and good tolerability on intestinal murine organoids, which reveal the potential of these combinations for the treatment of leishmaniasis.
A Bidirectional Wireless Power Transfer System with Integrated Near-Field Communication for E-Vehicles
Authors: Ye Weizhou , Parspour Nejila
Published: January 2024

This paper presents the design of a bidirectional wireless power and information transfer system. The wireless information transfer is based on near-field technology, utilizing communication coils integrated into power transfer coils. Compared with conventional far-field-based communication methods (e.g., Bluetooth and WLAN), the proposed near-field-based communication method provides a peer-to-peer feature, as well as lower latency, which enables the simple paring of a transmitter and a receiver for power transfer and the real-time updating of control parameters. Using the established communication, control parameters are transmitted from one side of the system to another side, and the co-control of the inverter and the active rectifier is realized. In addition, this work innovatively presents the communication-signal-based synchronization of an inverter and a rectifier, which requires no AC current sensing in the power path and no complex algorithm for stabilization, unlike conventional current-based synchronization methods. The proposed information and power transfer system was measured under different operating conditions, including aligned and misaligned positions, operating points with different charging powers, and forward and reverse power transfer. The results show that the presented prototype allows a bidirectional power transfer of up to 1.2 kW, and efficiency above 90% for the power ranges from 0.6 kW to 1.2 kW was obtained. Furthermore, the integrated communication is robust to the crosstalk from the power transfer and misalignment, and a zero BER (bit error rate) and ultra-low latency of 15.36 µs are achieved. The presented work thus provides a novel solution to the synchronization and real-time co-control of an active rectifier and an inverter in a wireless power transfer system, utilizing integrated near-field-based communication.
Exploring the facilitators and barriers to addressing social media’s impact on anxiety within primary care: a qualitative study
Authors: Anto Ailin , Basu Arunima , Selim Rania , Zaman Jahed , Kanapathipillai Dylan , Salam Haadi , Asif Rafey Omar , Eisingerich Andreas Benedikt
Published: January 2024

Background

Several researchers and policymakers have acknowledged the alarming association between social media (SM) usage and anxiety symptoms in young adults. While primary care holds a crucial role in the improvement of health outcomes for those presenting with anxiety, there has been no research on GPs’ perceptions of the impact of SM on anxiety. Furthermore, there has been little discussion of SM as a risk factor in anxiety-related consultations. This study is the first to use empirical research to inform how primary care can adapt to address SM’s impact on anxiety within young adults.

Aim

To identify the facilitators and barriers within primary care to addressing SM’s impact on anxiety among young adults.

Design & setting

A qualitative study of GPs in the UK.

Method

Following an exploratory pilot interview, semi-structured interviews with GPs (
n
= 7) were transcribed and thematically analysed, following an inductive approach.

Results

The following six facilitators were identified: a framework to facilitate discussion; open GP attitudes; GP training; referral pathways; larger stakeholder influence; and young adult education of social media’s impact on anxiety. The following three barriers were identified: a lack of GP awareness of SM’s impact on anxiety; cautious GP attitudes; and increased pressure on the health service.

Conclusion

This qualitative study revealed a diversity of perceptions, and these novel findings are instructive in the adaptation of primary care services to meet the current mental health needs of young adults, as well as better assisting GPs in engaging in these conversations, especially within university practice.
Reformas curriculares en educación tecnológica: experiencias de adecuación desde la perspectiva de directivos y docentes
Authors: Silva-Cueva Johan , Niño Cueva Danés Carlos Enrique , Niño Cueva Moisés Ronal , Alanya-Beltran Joel , Calderón Pizango Milton Ricardo
Published: January 2024

Los institutos tecnológicos son centros de formación de profesionales para el desarrollo nacional, en lo últimas décadas han sido parte de las reformas curriculares a fin de adaptarse al enfoque por competencias y mejorar la calidad educativa. La investigación tuvo por objetivo conocer las experiencias de los directivos y docentes en el proceso de adecuación e implementación del currículo específicamente en las reformas del Ministerio de Educación de Perú entre 2006 y 2020. Utilizando un enfoque cualitativo y un diseño fenomenológico hermenéutico, los hallazgos revelan que la adecuación curricular fue gradual y complejo debido a las normativas, con limitaciones temporales y escasa conexión entre instituciones educativas y empresas. Aunque el currículo actual es más organizado y consensuado gracias a la participación de los involucrados, pero persisten las practicas pedagógicas tradicionales. Se puede cerrar indicando la necesidad de fortalecer la colaboración entre la academia y la industria para mejorar la formación técnica.
Validación del cuestionario: uso de las TIC y estilos de aprendizaje en estudiantes de posgrado
Authors: Salicio-Moreno Isabel Aurora , Mamani-Ramos Angel Anibal
Published: January 2024

El uso de las TIC como una herramienta pedagógica despierta considerable interés en los estudiantes porque permite conocer su estilo de aprendizaje en función de sus actitudes ante el empleo de estas tecnologías. El objetivo fue analizar las propiedades psicométricas del cuestionario sobre uso de las TIC y estilos de aprendizaje (TICEA) en estudiantes de posgrado. El estudio fue de enfoque cuantitativo, de tipo no experimental, con corte transversal correlacional y muestreo probabilístico simple. Se aplicó el instrumento TICEA a 203 alumnos de maestría en Educación de ambos sexos con edades entre 24 y 68 años. Los resultados mostraron un análisis factorial confirmatorio (AFC) con valores adecuados (c2/gl =1.368, RMSEA= .043, SRMR= .075, GFI= .988, CFI= .990, TLI= .989), con cargas superiores o iguales a .39, y un análisis de consistencia interna excelente de .92 usando el coeficiente de confiablidad Omega. Se concluye que el instrumento es válido y confiable
Habilidades investigativas en la escuela, un reto post pandemia
Authors: Chávez Lazarte Linda América
Published: January 2024

La presente investigación estuvo referida a un estudio de caso que buscó determinar la importancia de las habilidades investigativas en la escuela pública incluyéndolas como un reto post pandemia. Su aporte metodológico inductivo con enfoque cualitativo contribuyó con la observación y el análisis de las características de la población estudiada. Para el hallazgo de los resultados se empleó como instrumento de investigación una Guía para desarrollar el cuestionario mediante la técnica de la entrevista semiestructurada, el cual permitió procesar la información sustentada y cotejada por pares. Como conclusión se determinó que, el desarrollo de habilidades investigativas guarda absoluta relevancia en el aprendizaje escolar del por tratarse de herramientas académicas de orden superior, las mismas que aplicadas en un contexto formativo post pandémico servirán en la vida futura y productiva de cada estudiante.
High Rate of Kidney Graft Failure after Simultaneous Heart–Kidney Transplantation
Authors: Okumura Kenji , Ohira Suguru , Kai Masashi , Misawa Ryosuke , Wolfe Kevin , Sogawa Hiroshi , Veillette Gregory , Nishida Seigo , Spielvogel David , Lansman Steven , Dhand Abhay
Published: January 2024

Key Points

Simultaneous heart–kidney transplant is associated with high rates of kidney graft failure which are worse when compared with kidney transplant alone.

The major causes of kidney graft failure in simultaneous heart–kidney transplant recipients were patient death and primary nonfunction of kidney graft.

Background

The indications and outcomes of simultaneous heart–kidney transplantation (SHKT) remain suboptimally defined. Risk factors for renal graft failure after SHKT also remain poorly defined.

Methods

We analyzed the renal graft outcomes among SHKT recipients using United Network for Organ Sharing database from 2015 to 2020. To evaluate for factors associated with poor renal outcomes, we compared SHKT and kidney transplantation alone recipients using propensity score matching.

Results

Among SHKT recipients, the rate of primary nonfunction (PNF) of kidney graft was 3%, the 30-day kidney graft failure rate was 7.0%, and the 30-day post-transplant mortality rate was 4.1%. The incidence of kidney delayed graft function was 27.5%. Kidney graft failure was seen early post-SHKT with most common causes of patient death (43.9%) and PNF of kidney graft (41.5%). One- and 2-year patient survival was 89.2% and 86.5%, and 1- and 2-year freedom from kidney graft failure was 85.4% and 82.7%, respectively. In subgroup analysis of SHKT recipients, use of pretransplant mechanical cardiac support (adjusted odds ratio [aOR], 2.57; P = 0.017), higher calculated panel reactive antibody (aOR, 1.76; P = 0.016), and older donor age per 10 years (aOR, 1.94; P = 0.001) were associated with PNF. Pretransplant extracorporeal membrane oxygenation support was associated with the increased risk of 30-day recipient mortality (aOR, 5.55; P = 0.002). Increased 30-day graft failure was seen in SHKT recipients with pretransplant mechanical cardiac support (aOR, 1.77; P = 0.038) and dialysis at the time of transplant (aOR, 1.72; P = 0.044). Multivariable Cox hazard analysis demonstrated that SHKT, when compared with kidney transplantation alone, is associated with increased kidney graft failure (hazard ratio, 2.56; P < 0.001) and recipient mortality (hazard ratio, 2.65; P < 0.001).

Conclusions

SHKT is associated with high rates of kidney graft failure. Identification of risk factors of renal graft failure can help optimize recipient selection for SHKT versus kidney after heart transplantation, especially after introduction of the new safety-net policy.
PENGARUH DISIPLIN DAN STRES KERJA TERHADAP KINERJA KARYAWAN PADA PT GARUDA INDONESIA
Authors: Kencana Dadang Surya , Chalisyah Elis
Published: January 2024

Human Resources (HR) is an important aspect in an organization or company, having quality human resources will make a company grow further in facing various existing business competitions, and vice versa. One of the factors that is very influential in HR is a discipline factor. Work discipline can be seen as having great benefits, both for the interests of the organization and for employees. For organizations, the existence of work discipline will ensure the maintenance of order and smooth implementation of tasks, so that optimal results are obtained. Apart from work discipline, an employee's work stress will certainly influence a company's performance. If stress is high it will further reduce performance and vice versa. This research aims to see whether There is The influence of work discipline and work stress on employee performance at PT Garuda Indonesia, with using the Multiple Linear Regression Analysis method with the help of the SPSS program. Based on the analysis and discussion, it is concluded that work discipline has a positive influence on employee performance, while work stress has a negative influence on employee performance. Therefore, it can be interpreted that work discipline must be maintained and improved, while work stress must be reduced.

Key words: Employee Performance, Work Discipline, and Work Stress
Effectiveness of Combined Oral Contraceptive with Chlormadinone Acetate in the Treatment of Acne and Psychological Maladaptation
Authors: Гутикова Л.В.
Published: January 2024

Обследовано 60 женщин в возрасте 18–45 лет, у которых на коже лица были угревые высыпания разной степени тяжести. Все женщины принимали КОК, содержащий 30 мкг этинилэстрадиола и 2 мг хлормадинона ацетата. Большинство пациенток (70%) испытывали психологическое и социальное беспокойство по поводу угревой болезни. Через 3 цикла применения препарата и врачом, и пациентками отмечены улучшение состояния кожи и исчезновение угревых высыпаний соответственно в 58,3 и 61,6% случаев, через 6 циклов выздоровление отмечено пациентками в 86,7% случаев, врачом – в 71,7%, а улучшение состояния кожи и уменьшение количества акне отметили 11,6% пациенток, врач зафиксировал улучшение у 15%. Отсутствие эффекта было выявлено врачом только в 3,3% случаев. У 15% пациенток через 3 месяца и 18,3% через 6 отмечено повышение либидо. Большинство пациенток были полностью удовлетворены контрацептивным препаратом: 78,3% – через 3 цикла приема препарата и 90% – через 6. Улучшение эмоционального состояния отмечали 33,3% женщин через 3 цикла и 48,34% – через 6. Комбинированный оральный контрацептив, содержащий в своем составе этинилэстрадиол и хлормадинона ацетат, эффективно улучшает состояние кожи у пациенток с акне, обладает хорошей переносимостью, повышает либидо, обладает позитивным эффектом на психологическую, эмоциональную и социальную адаптацию женщин, что дает возможность рекомендовать этот препарат для широкого использования в повседневной клинической практике.

60 women aged 18–45 years were examined, who had acne rashes of varying severity on the skin of the face. All women took a COC containing 30 mcg of ethinyl estradiol and 2 mg of chlormadinone acetate. The majority of patients (70%) experienced psychological and social anxiety about acne. After 3 cycles of using the drug, both the doctor and the patients noted an improvement in the condition of the skin and the disappearance of acne, respectively, in 58.3 and 61.6% of cases, after 6 cycles, recovery was noted by the patients in 86.7% of cases, by the doctor – in 71.7%, and improvement in the condition of the skin and a decrease in the number of acne was noted by 11.6% of patients, the doctor recorded an improvement in 15%. The lack of effect was detected by the doctor only in 3.3% of cases. In 15% of patients after 3 months and 18.3% after 6, an increase in libido was noted. The majority of patients were completely satisfied with the contraceptive drug: 78.3% – after 3 cycles of taking the drug and 90% – after 6. Improvement of the emotional state was noted by 33.3% of women after 3 cycles and 48.34% – after 6. A combined oral contraceptive containing ethinylestradiol and chlormadinone acetate, effectively improves the skin condition in patients with acne, has good tolerance, increases libido, has a positive effect on the psychological, emotional and social adaptation of women, which makes it possible to recommend this drug for widespread use in everyday clinical practice.
PENGAURUH JUMLAH BIJI PER LUBANG TANAM DENGAN PEMANFAATAN BIOCHAR KULIT KAKAO TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN KEDELAI (Glycine max L)
Authors: Saing Ade Rudiansya
Published: January 2024

Pada tahun 2022, penelitian ini akan dilakukan di Jambutua, Desa Darma, Kecamatan Polewali, Kabupaten Polewali Mandar, Provinsi Sulawesi Barat. Penelitian ini dilakukan dengan menggunakan Rancangan Acak Kelompok (RAL) dengan menggunakan analisis multi faktor. Faktor 1 adalah penggunaan jumlah benih yang sama untuk setiap lubang tanam yaitu (P1) dua benih untuk setiap lubang tanam, dan (P2) tiga benih untuk setiap lubang tanam, dengan Faktor 2 adalah penggunaan biochar sebagai kakao, atau (B0)," kontrol," atau tanpa menggunakan biochar. sekam kakao, (B1) pemanfaatan biochar sekam kakao 0,5 kg/petak dan (B2) sekam kakao 1 kg/petak.Hasil penelitian menunjukkan bahwa penggunaan biochar sekam kakao berpengaruh nyata tidak menghasilkan interaksi antara jumlah benih per lubang tanam. Berbeda dengan metode produksi lainnya, penggunaan dua biji per lubang tanam memberikan hasil yang lebih baik dalam hal jumlah daun dan penampakan, sedangkan penggunaan biochar sekam kakao tidak memberikan hasil yang lebih baik dari segi parameter yang diteliti.
Prospek Pengembangan Durian Montong Sebagai Agrowisata Di Desa Ihing Kecamatan Bulo Kabupaten Polewali Mandar
Authors: NoerHhidaya NoerHhidaya , NoerHhidaya NoerHhidaya , Baso And
Published: January 2024

Agrowisata durian montong merupakan wisata yang berbasis pertanian yang memiliki panorama alam yang indah dan produk unggulan berupa durian montong yang kerap dikunjungin oleh para pecinta durian. Penelitian ini bertujuan untuk mengetahui faktor Internal dan faktor Eksternal prospek pengembangan Durian Montong Sebagai Agrowisata Di Desa Ihing. Penentuan sampel responden dengan menggunakan metode kualitatif dengan memilih langsung anggota kelompok yang terdiri dari 2 responden, analisis data yang di gunakan dalam penelitian ini adalah SWOT. menggunakan tabel rekab untuk menarik sebuah kesimpulan penelitian, dengan berdasarkan pada hasil penelitian yang telah dilaksanakan di Desa Ihing. Untuk menganalisis prospek pengembangan durian montong sebagai agrowisata yaitu faktor Internal memiliki faktor kekuatan dengan nilai total 2,12 lebih besar dibandingkan faktor kelemahan dengan nilai total yaitu 1,4, dan faktor Eksternal memiliki faktor peluang dengan nilai total yaitu 1,9 lebih besar dari faktor ancaman dengan nilai total yaitu 1,54.
UJI EFEKTIVITAS VITAMIN B1 YANG DIAPLIKASIKAN PADA TANAMAN MONSTREA (Monstrea deliciosa ) DENGAN PERBANYAKAN MELALUI SULUR
Authors: Rosdiana Rosdiana , Nurdin Dahlia , Satriani Satriani
Published: January 2024

Salah satu tanaman hias dalam ruangan dengan daun yang sangat indah yang bisa dinikmati sepanjang tahun adalah monstera deliciosa. Keinginan akan tanaman yang menarik meningkat seiring dengan pendapatan masyarakat. Oleh karena itu diperlukan suatu metode penanaman yang diharapkan dapat menghasilkan perkembangan dan hasil yang maksimal agar dapat memenuhi kebutuhan dan permintaan tanaman Monstera deliciosa. Pada bulan Februari hingga April 2022, penelitian ini dilakukan di Desa Batetangnga, Kecamatan Binuang, Kabupaten Polewali Mandar, Provinsi Sulawesi Barat. Tujuannya untuk mengevaluasi khasiat vitamin B1 bila diberikan pada tanaman hias Monstera deliciosa yang diperbanyak menggunakan sulur. Pendekatan Rancangan Acak Kelompok (RAK) digunakan dalam penelitian Penelitian ini menggunakan salah satu faktor, yaitu pemberian dosis vitamin B1 yang berbeda pada stek pucuk sulur. Ada lima kombinasi perlakuan yang masing-masing diterapkan tiga kali: S0 = tanpa perlakuan, S1 = pemberian vitamin B1 dengan dosis 1 cc/l air, S2 = pemberian vitamin B1 dengan dosis 2 cc/l air, S3 = pemberian vitamin B1 dengan dosis 3 cc/l air, dan S4 = pemberian vitamin B1 pada Temuan menunjukkan bahwa tinggi tanaman, jumlah daun, dan jumlah sulur tidak terpengaruh oleh injeksi vitamin B1 dengan dosis 3 cc/l air (S3), namun memiliki dampak yang sangat besar pada parameter waktu. untuk kemunculan tunas.
RESPON PENGGUNAAN PUPUK ORGANIK LIMBAH RUMAH TANGGA DAN PUPUK NPK PHONSKA TERHADAP PERTUMBUHAN DAN PRODUKSI TERUNG UNGU (SOLANUM MELONGENA L)
Authors: Nurdin Dahliah , Fitrianti Fitrianti , Safrianto Safrianto
Published: January 2024

Terong ungu (Solanum melongena L) adalah tanaman hijau yang dikembangkan untuk buahnya, terong adalah tanaman lokal dari hutan yang diketahui berasal dari Asia dan kemudian diperkenalkan ke Eropa oleh pedagang luar Eropa. Terong ungu merupakan salah satu bahan pokok yang tidak sulit didapatkan dan murah, terong juga merupakan sayuran yang sangat terkenal dan juga mengandung gizi yang sangat tinggi terutama kandungan gizi, kalsium dan protein (Muldiana dan Rosdiana, 2017). Salah satu upaya membangun pengembangan dan penciptaan tanaman terong ungu (Solanum melongena L) adalah dengan merawat, menjaga dan mengembangkan lebih lanjut kekayaan tanah dengan memberikan komponen atau suplemen ke dalam tanah yang dapat menyumbangkan makanan bagi tanaman (Bahar. 2016). Penanganannya dapat dilakukan dengan pemberian kompos alami dari limbah keluarga dan pupuk anorganik pada Npk phonska, karena saat ini total kompos alami yang ditawarkan memiliki kandungan zat yang jauh lebih tinggi, yaitu antara 30-60% (Mutia. 2011). Reaksi kompos alami dari limbah keluarga adalah pupuk alami ini menghasilkan bahan yang kaya akan komponen-komponen yang dibutuhkan oleh tanaman, sehingga umumnya sangat baik digunakan sebagai pupuk alami bahan alami yang lebih mengembangkan struktur dan meningkatkan kemampuan tanah untuk menyimpan air (Wahida dan Suryaningsih, 2016).Kotoran alami limbah keluarga dibuat dengan menjadikannya sebagai hal baru yang sangat bermanfaat, salah satu upaya untuk memanfaatkan limbah ini adalah dengan menjadikannya pupuk dengan limbah makanan, limbah sayuran dari sistem memasak dan potongan produk organik yang dikumpulkan dan diisolasi dari limbah anorganik sebagai sampah. . plastik, buang batang tanaman, daun sayuran, atau potongan buah yang keras untuk dibelah terlebih dahulu. (Sriharti dkk, 2010).Penelitian dilaksanakan di Desa Mambu Kecamatan Luyo Kabupaten Polewali Mandar Provinsi Sulawesi Barat yang dilaksanakan selama 60 hari pada bulan januari sampai maret 2022.Penelitian ini menggunakan metode Rancangan Acak Kelompok (RAK) yang terdiri dari 2 faktor, pertama jenis pupuk dengan 3 taraf yaitu L ( pupuk organik/ Limbah), N ( pupuk anorganik NPK Phonska ) dan faktor kedua pemberian pupuk dengan :L ( pupuk Limbah rumah tangga) L1: 500 cc/ tanaman , L2: 750 cc/ tanaman , L3: 1000 cc/ tanaman N ( pupuk NPK Phonska), N1: 5 g/ tanaman , N2: 10 g/ tanaman , N3: 15 g/ tanaman  Hal ini terdapat 9 kombinasi perlakuan dan 3 ulangan sehingga terdapat 27 unit penelitian dimana setiap unit terdiri dari 4 tanaman sehingga keseluruhan terdapat 108 tanaman.
STUDY OF THE KEY COMPONENT PARAMETERS OF THE WINGED CHISEL PLOW ON SOIL-STRAW DISTURBANCE PATTERN
Authors: CHEN Kun , WANG Xianliang , JI Jiangtao , ZHANG Xiangcai , CHENG Xiupei , ZHOU Hua , WEI Zhongcai , LIU Lei , BAI Mingyue , GAO Shang
Published: January 2024

Understanding the soil-straw disturbance pattern of the key component parameters of the straw mixing winged chisel plow is the key to designing and optimizing the straw mixing winged chisel plow (a chisel plow for mixing and mulching straw). In this study, a straw-soil-winged chisel plow interaction model was established, and the working principle, key components of the winged chisel plow were determined based on soil bin experiment and theoretical analysis. Discrete element method (DEM) was used to study the influence of disturbance pattern of key components of the winged chisel plow on soil-straw displacement, straw mixing rate and draught force. The results show that the main components of the winged chisel plow that affect the operating efficiency of the implement are the soil lifting plate height, the wing mounting height and the wing width. The height of the soil lifting plate affects the efficiency of the winged chisel plow in secondary disturbance of soil-straw and its own performance in turning over soil, with an optimal range of 110 mm-170 mm. The installation height of the wing mounting mainly affects the position of the soil lifting plate in the soil layer. In order to achieve the best operating effect, the position of the soil lifting plate needs to meet the "lower lifting and upper turning" requirement. The optimal installation height of the wing mounting is 95 mm-145 mm. The width of the wing mainly affects the working width of the implement, and its optimal value is 180 mm-220 mm. The width of the wing mainly affects the working width of the implement, and its optimal value is 180 mm-220 mm. The established simulation relative error is within 12.60%, which can better study the disturbance pattern of soil-straw. This study may provide a reference for optimizing and designing wing-type chisel plows and subsoil shovels.
RESEARCH ON DETACHMENT PROCESS AND SEPARATION OF FROZEN SEA-BUCKTHORN FRUITS FROM BRANCHES
Authors: CIUPERCĂ Radu , ZAICA Ana , STEFAN Vasilica , PETCU Petruta , DUMITRESCU Lucian , CRISTEA Oana
Published: January 2024

Following the bibliographic and theoretical research carried out by the specialists of INMA Bucharest Institute, as well as the experience of sea buckthorn producers and processors, the experimental model of a high-performance equipment for separating frozen sea buckthorn fruits from the harvested mass (branches, fruits and leaves) was designed and made. Thus, the subject of this paper is the experimental research carried out on an improved equipment for detaching and separating frozen sea buckthorn fruits from the branches - ESFC. After an introduction in which the current state in the field was highlighted, the tested equipment was presented with the main functional parameters, adjustments necessary to obtain an optimal working regime suitable for the processed raw material. Following the experiments carried out, the main working indices of the equipment were determined, among which: the working capacity, the degree of separation of the fruits from impurities as well as the optimal functional regimes. Following the tests carried out, in two variants of arrangement of the paddle arms on the separation rotor, some conclusions were formulated, the most eloquent of which was that, for the equipment tested in Variant II equipped with the separation rotor, the highest values for the feed flow resulted for the angle of inclination of the paddle of 450 and the rotation speed of the rotor of 90 min-1 and a high degree of separation.
ORGANIZATION OF THE USE OF AGRICULTURAL LAND OF AN ADMINISTRATIVE UNIT OF THE MUNICIPAL LEVEL FROM GEOECOLOGICAL POSITIONS
Authors: Vasyukov S.V. , Sirotkin V.V.
Published: January 2024

The article proposes geoecological approaches to the organization of the agricultural land use system based on the limiting parameters of agrocenoses. As the main limiting parameters of agrocenoses, the hydrophysical and energy parameters of soils are scientifically substantiated. Based on limiting parameters, approaches are defined to determine the boundaries of agricultural land plots in order to minimize the carbon footprint of agricultural products. Non-contact methods for determining the agrochemical and hydrophysical parameters of soils using field spectrometers and UAVs are substantiated.
THE IMPACT OF FOREST FIRES ON THE SOIL COVER IN THE CONDITIONS OF THE KUYAR FORESTRY OF THE REPUBLIC OF MARI EL
Authors: Nureev N.B. , Mityakova I.I.
Published: January 2024

The influence of forest fires on the physico-chemical properties of sandy soils formed under pine plantations of the southern Taiga subzone in the conditions of the Republic of Mari El is shown. As a result of investigations of 4 soil sections, including 1 control and analysis of about 30 soil samples, soil parameters with the greatest and least variability were revealed. It was found that only the forest floor, which burned completely, with the formation of a specific Opir horizon, was exposed to a low forest fire, the upper mineral horizons have no signs of pyrogenicity. It was found that in the first post-fire year, the acidity in the upper soil horizons slightly increases compared to the control site, along with this, there is an increase in the amount of exchange bases and the degree of saturation with bases, the content of exchangeable potassium and loss indicators during calcination sharply decreases in forest litter. Regression equations are constructed on the basis of the revealed close relationships. It is concluded that, despite the absence of pyrogenic signs in the upper mineral horizons, their properties also change significantly under the influence of the combustion products embedded here together with the soil solution. To detail the data on the functioning of post-pyrogenic ecosystems, a long period of observations and scientific research is necessary.
BIOGEOCHEMICAL CHARACTERISTICS OF MACRO- AND MICROELEMENTS ON EXTRACTS FROM LEONURUS QUINQUELOBATUS HERB
Authors: Siromlya T.I. , Zagurskaya Yu.V.
Published: January 2024

The article presents the results of the study of the features of quantitative transition of chemical elements (CE) in decoctions and tinctures. Leonurus quinquelobatus Gilib. plants were grown in the regions of the southeast of Western Siberia. Absolute content of CE in aqueous extracts is higher than in aqueous-alcoholic extracts. No relationship between their gross content in raw material and concentration in extracts was found. Dusted plants are characterized by higher ash content and content of ash residue insoluble in 10% HCl. The CE extraction coefficient from these samples is lower regardless of the extragent. In plants from different regions, the extraction ratio may differ either slightly or several times. It varies markedly even within a single site. The macronutrients K, Mg and Ca are extracted in the highest amounts. Standardized in medicinal plant raw materials Pb and Cd are extracted in minimal amounts. Extracts from the herb L. quinquelobatus can be considered safe for the content of potentially toxic Pb and Cd and use as an additional source of macronutrients.
ESTIMATION OF MODERN CHANGES IN ATMOSPHERIC PRECIPITATION IN CENTRAL AFRICA
Authors: Tokpa Mami Magbini , Lobanov V.A. , Mhanna Aaed Ismail , Morozova S.V. , Alimpieva M.A.
Published: January 2024

Long-term time series of monthly precipitation from the beginning of observations to 2022 at 57 meteorological stations in central Africa were studied to assess the impact of climate change on precipitation dynamics in this part of the African continent. The spatio-temporal distributions of precipitation for the dry and wet seasons have been obtained and it has been established that the least amount of precipitation is observed from November to March, and the biggest - from April to October. According to the type of intra-annual changes in precipitation, four homogeneous climatic regions were identified, and in each of them an assessment of the changes that occurred was given. Various methodological approaches have been applied to assess changes in precipitation in the months of the wet and dry seasons of the year. In general, no significant changes in the dynamics were found, however, a general trend was established for a decrease in precipitation during the months of the wet season and their increase in certain parts of the territory during the months of the dry season of the year. The decrease in wet season months ranged from -25.5 mm to -138.5 mm or 0.8 to 1.2 RMSD and a separate increase of 52.8 mm and 68.1 mm or 0.8 to 1.1 RMSD. During the dry season, the largest decrease was in the north and central regions, reaching -31.6mm (0.88 RMSD) in February, while a significant increase occurred in the coastal areas of the Gulf of Guinea, reaching 15mm (2 RMSD) in January.
Gastropods in tidal of Bulo, Mandolang District, North Sulawesi
Authors: Azzahra Aulina  , Ompi Medy , Kaligis Erly Yosef , Rumampuk Natalie Detty C , Rimper Joice Rinefi T.S.L , Gerung Grevo S.
Published: January 2024

A tidal area is a part of the coast that is influenced by the rise and fall of the tides. The area is a dynamic area, which experiences exposure to the air when low tide comes, easily mixed with fresh water in the rainy season and inundation. Marine flora and fauna that live in the area can adapt to it. The purpose of this study was to identify gastropod species and the density of each species that were found attached to the hard substratum in the tidal area of Bulo, Mandolang District, North Sulawesi. Data were collected by line transect and squared methods. Gastropod samples obtained were treated by using 70% alcohol. The length of each species was measured before being identified at the species level. The results show 175 individuals consisting of 30 species from 14 families were recorded. Substrat of rock and dead coral were covered and dominated the intertidal bottom. The highest density of Gastropods in the tidal area of Bulo, Mandolang District, North Sulawesi was the species of Cellana radiata. The density of Cellana radiata was 3.8 ind./m², while for the other 20 species of gastropods, each species was 0.07 ind./m². Physical and biological factors that affected the presence and density of gastropod species are discussed.
Keywords: Gastropods; Density; Tidal; Mollusc; Bulo Village.
Abstrak
Daerah pasang surut adalah salah satu daera di pesisir yang dipengaruhi oleh air pasang tinggi dan rendah. Daerah ini adalah sebagai daerah yang dinamamis, di mana adalah daerah yang terekspos dengan sinar matahari pada saat pasang rendah, mudah bercampur dengan air tawar di saat musium hujan, serta daerah yang mudah dijangkau oleh masyarakat pensisir. Biota yang hidup di daerah ini memiliki kemampuan beradaptasi dengan perubahan-perubahan lingkungan ini. Tujuan penelitian ini adalah mengidentifikasi jenis-jenis Gastropoda dan mengetahui kepadatan jenis-jenis Gastropoda, yang menempati substrat keras di daerah pasang surut Bulo Kecamatan Mandolang, Sulawesi Utara. Pengumpulan data adalah dengan menggunakan metode ‘line transect’ dan kuadrat. Sampel Gastropoda yang didapatkan diberi alkohol 70%, Panjang masing-masing spesies diukur sebelum diidentifikasi pada tingkat spesies. Hasil penelitian menunjukkan bahwa ada 175 individu yang terdiri dari 30 spesies dari 14 famili. Kepadatan tertinggi Gastropoda di daerah pasang surut Bulo Kecamatan Mandolang, Sulawesi Utara adalah Cellana radiata yang memiliki kepadatan 3.8 ind./m2, sedangkan 20 jenis Gastropoda lainnya memiliki kepadatan untuk setiap jenis, yaitu 0.07 ind./m2.
Kata kunci: Gastropoda; Kepadatan; Pasang Surut; Moluska; Desa Bulo.
Morphology and Anatomy of Macroalgae Community in Rap Rap Coastal Waters, Tongkaina Village, Manado City
Authors: Rafii Keken Angliyana , Kepel Rene Ch. , Kondoy Khristin F I. , Mandagi Stephanus V. , Tombokan John L. , Lohoo Anneke V.
Published: January 2024

Macroalgae are low-level plants that generally grow attached to certain substrates such as corals, mud, sand, rocks, and other hard objects. Macroalgae are algae that have a macroscopic body shape and size. A community is a group of beings living together in the same place. Thus the macroalgae community is a group of lower plants that have macroscopic body sizes living together. The coastal area of Rap-Rap Beach is located in Tongkaina Village, Manado City, North Sulawesi Province. This location is one of the stable macroalgae habitats, meaning that there is still little habitat damage that occurs, so macroalgae can still be obtained directly from nature. This coast is also known as mangrove ecotourism and the path to Bunaken Island. The purpose of this study is to describe the morphology and anatomy of each macroalgae species. Data collection using the Line Transect method with a squared sampling technique was carried out at the lowest low tide. Temperature measurement using a thermometer and salinity using a refractometer, and for determination of substrate visually see the type of substrate.
Keywords: morphology, anatomy, community, macroalgae, Rap Rap.
Abstrak
Makroalga merupakan tumbuhan tingkat rendah yang umumnya tumbuh melekat pada substrat tertentu seperti pada karang, lumpur, pasir, batu dan benda keras lainnya. Makroalga yaitu alga yang memiliki bentuk dan ukuran tubuh makroskopik. Komunitas adalah kelompok makhluk yang hidup secara bersama-sama dalam suatu tempat yang bersamaan. Dengan demikian komunitas makroalga adalah kelompok tumbuhan rendah yang memiliki ukuran tubuh makroskopik yang hidup bersamaan. Wilayah pesisir Pantai Rap-Rap terletak di Kelurahan Tongkaina, Kota Manado, Provinsi Sulawesi Utara. Lokasi ini merupakan salah satu habitat makroalga yang stabil artinya masih sedikit kerusakan habitat yang terjadi, sehingga makroalga masih dapat diperoleh secara langsung dari alam. Pesisir ini juga dikenal sebagai ekowisata mangrove dan jalur ke Pulau Bunaken. Tujuan penelitian ini adalah mendeskripsikan morfologi dan anatomi masing-masing spesies makroalga. Pengambilan data menggunakan metode Line Transect dengan teknik sampling kuadrat yang dilakukan pada saat surut terendah. Pengukuran suhu menggunakan Thermometer dan salinitas menggunakan Refraktometer, dan untuk penentuan substrat dilihat secara visual jenis dari substrat tersebut.
Kata kunci: morfologi, anatomi, komunitas, makroalga, Rap Rap.
Pengaruh Sektor Pertanian, Kehutanan dan Perikanan, Sektor Jasa Pendidikan, Sektor Jasa Kesehatan dan Kegiatan Sosial, Terhadap PDRB ADHK Kabupaten Kerinci Tahun 2013 – 2022
Authors: Ernita Dewi , Harahap Erni Febrina
Published: January 2024

This research aims to analyze the influence of the agriculture, forestry, and fisheries sectors, the education services sector, the health services sector, and social activities, as well as the construction sector on the Gross Regional Domestic Product (GRDP) Allocation of Funds from Natural Wealth and Constitutional Rights (ADHK) of Kerinci Regency in the period 2013 – 2022 partially and simultaneously. This research evaluates the extent of influence of the agriculture, forestry, and fisheries sectors, the education services sector, the health services and social activities sector, and the construction sector on the PDRB ADHK of Kerinci Regency partially and simultaneously. The research methodology used involves a qualitative descriptive and quantitative descriptive approach. The research results show that there is a positive influence of the agriculture, forestry, and fisheries sectors, the education services sector, the health services and social activities sector, and the construction sector on the PDRB ADHK of Kerinci Regency. This effect reaches 100% simultaneously.
Pengaruh Karakteristik Perusahaan Terhadap Pengungkapan Kesehatan dan Keselamatan Kerja: Studi Empiris pada Perusahaan Infrastruktur dan Pertambangan yang Terdaftar di Bursa Efek Indonesia (BEI) Tahun 2019-2021
Authors: Susanty Angella Natalia , Aminah
Published: January 2024

Disclosure of occupational health and safety is a crucial aspect of corporate social responsibility, requiring in-depth attention from the company. This research aims to analyze the impact of company size, leverage, and company age on Occupational Health and Safety (K3) disclosure. The research object involves infrastructure and mining companies listed on the Indonesia Stock Exchange during the 2019-2021 period. The method applied is panel data regression analysis. The research results show that company size and company age have a positive effect on occupational health and safety disclosures, while leverage has a negative effect on occupational health and safety disclosures.
Analisis Perkembangan Penduduk Miskin, Karakteristik Kemiskinan dan Kedalaman Kemiskinan di Indonesia
Authors: Mansur Yuwarman
Published: January 2024

Poverty is a very complex issue that affects all countries in much the same way. Poverty is a socio-economic phenomenon that transcends not only religious boundaries but also ethnic and national boundaries. The main purpose of this study is to conduct a descriptive analysis to clarify the number of poor people in Indonesia, the characteristics of poverty, how the depth of poverty has developed and to what extent, and the impact on the Indonesian economy. It is something to do. The data used in this study is panel data that collects cross-sectional data from all provinces in Indonesia, and the time-series data is from the past five years from 2017 to 2021.  The analysis results of the "Survey Research" show that the number of poor people living in relative poverty in Indonesia exists in Papua, West Papua, NTT, Maluku, and Gorontalo provinces. Absolute poverty is widespread in East Java, Central Java, and West Java. On the other hand, looking at the characteristics of poverty, poverty among rural residents is more serious than among urban residents. Looking at the depth of poverty, the provinces of NTT, Maluku, and West Papua can be cited poverty levels are high here compared to other provinces in Indonesia.
Mengungkap Praktik Akuntansi Pendapatan oleh Para Guru Honorer TK
Authors: Thalib Mohamad Anwar , Monantun Widy Pratiwi
Published: January 2024

Purpose: This study aims to reveal income accounting practices by kindergarten teachers based on non-material values.
Method: This study uses an Islamic paradigm with an Islamic ethnomethodological approach. There are five data analysis stages: charity, knowledge, faith, revelation information, and courtesy.
Result: The results of the study show that there are three ways of practicing income accounting that are implemented by kindergarten teachers, namely first, income accounting practices that originate from the profession of kindergarten teachers; secondly, the accounting practice of income originating from side business income; the three methods of recording revenue accounting in memory. Nonmaterial values condition these three accounting practices through patience and persistence.
Limitation: The limitation of this study is that the study's results need to provide documentation related to the method of recording income accounting by honorary kindergarten teachers.
Contribution: The contribution of this research is that the results of this study add to the repertoire of accounting knowledge, especially related to income accounting, by honorary kindergarten teachers. The outcome of this study is to identify the non-material values that are most important for honorary teachers in managing their income. This can help identify the aspects that influence financial decisions.
Novelty: The novelty of this research is that the results show that the practice of income accounting by honorary kindergarten teachers is based on non-material values.
Pengembangan Model Kinerja Karyawan berdasarkan Karir, Spiritual Capital, dan Disiplin
Authors: Prasodjo Imam , Hardianto Ade Manggala , Faujiah Faujiah
Published: January 2024

Purpose: The purpose of this research is to develop a model of employee performance involving career, organizational spirituality, and discipline.

Method: The research method is a survey method by distributing questionnaires to 150 employees and using the SEM (structural equation modeling) analysis tool. researchers distributed questionnaires via gGoogleform, and classify, and analyze the model.

Result: The findings of the outer model research show that all indicators are valid, and the hypothesis test is accepted as significant. Career variables and organizational spirituality have a direct effect on discipline, namely 0.260 and 0.689. While career and organizational spiritual variables have a direct effect on employee performance of 0.233 and 0.435. Career and spiritual mediation and employee discipline have a direct effect of 0.187, 0.230 ,and 0.334.

Limitation: Research limitations. Researchers limit the survey area to only the city of Cilegon, so it is necessary to invade the research object in order to produce a more established model.

Novelty: The novelty of the research is involving organizational spirituality as another perception to increase sales.
Hubungan Fear of Missing out dengan Social Media Addiction pada Pengguna Instagram
Authors: Salim Ahmad , Jatnika Ratna , Yudiana Whisnu
Published: January 2024

Purpose: This study aims to see the relationship between fear of missing out and social media addiction among students of the Faculty of Psychology, Padjadjaran University who use Instagram.
Methodology/approach: Researchers used the fear of missing out scale (FoMOS) and the Bergen social media addiction scale (BSMAs) to measure the two variables. This research is a quantitative study using a non-experimental correlational study design. The sample collected was 94 people using stratified sampling technique which was divided into four strata (batch 2017, 2018, 2019, 2020). The Spearman test was conducted to see the correlation between the two variables.
Results/findings: The results obtained show a significant correlation between the two variables with a positive relationship. This shows that the higher the level of anxiety (FoMO) of an individual, the higher the tendency for the individual to show addictive behavior towards social media (SMA), Instagram.
Limitations: The limitation of this research lies in the number of participants, as the researchers were unable to study a broader population.
Contribution: This research contributes to our understanding of the relationship between fear of missing out and social media addiction and provides valuable insights for promoting responsible social media usage.