bluuebunny/crossref_metadata_2025_split huggingface dataset:
Intracutaneous Transplantation of Islets within a Biodegradable Temporizing Matrix (BTM) as an Alternative Site for Islet Transplantation
Authors: Rojas-Canales Darling , Walters Stacey N. , Penko Daniella , Cultrone Daniele , Bailey Jacqueline , Chtanova Tatyana , Nitschke Jodie , Johnston Julie , Kireta Svjetlana , Loudovaris Thomas , Kay Thomas W , Kuchel Tim R. , Hawthorne Wayne , O’Connell Philip J. , Korbutt Greg , Greenwood John E. , Grey Shane T. , Drogemuller Chris J. , Coates P.Toby 
Published: March 2023

<p> </p>
<p>Intra-hepatic islet transplantation for type-1 diabetes is limited by the need for multiple infusions and poor islet viability post-transplantation. The development of alternative transplantation sites is necessary to improve islet survival, and facilitate monitoring and retrieval. We tested a clinically proven Biodegradable Temporizing Matrix (BTM), a polyurethane-based scaffold, to generate a well vascularized intracutaneous ‘neo-dermis’ within the skin for islet transplantation. In murine models, BTM did not impair syngeneic islet renal-subcapsular transplant viability or function, and facilitated diabetes cure for over 150 days. Further, BTM supported functional neonatal porcine islet transplants into RAG-1-/- mice for 400 days. Hence, BTM is non-toxic for islets. two-photon intravital imaging used to map vessel growth through time identified dense vascular networks, with significant collagen deposition and increases in vessel mass up to 30 days post-BTM implantation. In a pre-clinical porcine skin model, BTM implants created a highly-vascularized intracutaneous site by day 7 post-implantation. When syngeneic neonatal porcine islets were transplanted intracutaneously the islets remained differentiated as insulin producing cells, maintained normal islet architecture, secreted c-peptide, and survived for over 100 days. Here we show that BTM facilitates formation of an islet-supportive intracutaneous ‘neo-dermis’ in a porcine pre-clinical model, as an alternative islet transplant site.</p>
A Study on Self-Sustained Vibrations of a Tire Operating above Peak Friction
Authors: Lugaro Carlo , Li Yi , Alirezaei Mohsen 
Published: March 2023

ABSTRACT
When a tire operates at a side slip level above peak friction, large vibrations in the produced forces and moments are observed. In the lateral direction, these vibrations are typically centered at frequencies close to 50 Hz and significantly affect the force that is produced by the tire. As an example, high dynamics vehicle maneuvers with an electronic stability program control system in the loop can be affected by this behavior. To accurately reproduce the tire response in these operating conditions, it is important to employ a model that can capture this phenomenon.
Based on analysis of nonlinear, unstable systems and limit cycle phenomenon, a theory is presented that provides a physical background for the source of vibrations. The theory also gives insight in how the frequency and amplitude of the vibrations are influenced by the tire physical characteristics and the operating conditions. It is found that the most dominant characteristics are the shape of the steady-state force response of the tire around peak friction, the contact patch mass, the carcass damping and stiffness. Simulations with physical models of different complexity levels, as well as with the commercial Simcenter Tire MF-Tyre/MF-Swift tire software model, validate the theory and demonstrate how the vibrations can be reproduced in a simulation environment. The simulation results are compared with tire measurements in different operating conditions, validating the exposed theory and employed models.
Diagnóstico de la gestión actual de manejo de riesgos con el uso de las tecnologías de información para asegurar una correcta presentación de la prima de riesgo de trabajo
Authors: Martínez Herrera Brenda Marina , Martínez Michel Ileana Elizabeth 
Published: March 2023

El presente artículo muestra el diagnóstico realizado a una empresa grande de su actual modelo de gestión de riesgos laborales que incluye el uso de la Tecnología de Información y Comunicación (TIC), dicho diagnóstico aborda tres dimensiones: estructura organizacional, gestión administrativa de riesgos de trabajo en la organización y tecnología de información. Como patrón se tiene la obligación de determinar anualmente la Prima de Riesgo de Trabajo (PRT) lo cual conlleva un manejo de gran cantidad de datos. Se pretende iniciar la discusión de la importancia que tiene modernizar procesos a través de las TIC en el área de la administración de obligaciones fiscales para asegurar el cumplimiento de cargas patronales de manera efectiva. El proyecto tendrá un enfoque de investigación cuantitativo de tipo exploratorio, descriptivo y experimental.
Penerapan Program Software Matlab Dalam Memecahkan Permasalahan Rangkaian Listrik: Dinamika Sistem Kapasitor Dan Induktor (Prinsip Nilai Dan Vektor Eigen)
Authors: Muthoharoh Luluk , Pamungkas Muhammad Putra , Sari Reni Permata 
Published: March 2023

Matlab software was applied in solving physics cases in electronics using value calculation programs and Eigenvectors. The physics case solved is an moving oscillator circuit consisting of five capacitors and four inductors. The purpose of this program is to determine the value and the Eigenvectors that can be obtained. The method used is to utilize the problem of values and Eigenvectors in the Matlab program. In the case of oscillator motion, each capacitor's size and inductor system have been determined according to the system.. The equation of motion for the capacitor and inductor system is reviewed at each point of the inductor and the function used is Â called the ansatz function, then differentiated twice concerning time. By using the Matlab program application, the results obtained show that by using eig (Eigen) command the Matlab program can accurately show the results of running (execution) values and Eigenvector.
Analisis SBA (Simple Bouguer Anomaly) Sebelum Gempa Padang Panjang 6 Maret 2007 Sebagai Prekursor Gempa Bumi
Authors: Rahmi Fhatihatul , Pujiastuti Dwi 
Published: March 2023

Telah dilakukan penelitian mengenai analisis SBA (Simple Bouguer Anomaly) sebelum gempa Padang Panjang 6 Maret 2007 yang bertujuan untuk melihat adanya korelasi antara perubahan anomali gravitasi dengan kejadian gempa bumi.Â Data gravitasi yang digunakan adalah data dari satelit GRACE (Gravity Recovery And Climate Experiment). Metode yang digunakan adalah metode time-lapse microgravity.Â Hasil kontur anomali selisih SBA menunjukkan adanya polarisasi anomali gravitasi yang terjadi di sekitar episenter gempa pada 35 hari sebelum gempa.Â Terdapat zona anomali tinggi di bagian tenggara dan zona anomali rendah di bagian barat daerah penelitian.Â Berdasarkan hasil sayatan melintang pada kontur harian SBA, diperoleh nilai harian SBA dan grafik harian SBA yang menunjukkan penurunan secara perlahan dari 35 hari hingga 20 hari sebelum gempa.Â Penurunan maksimum terjadi pada tanggal 12 Februari 2007.Â Lalu diikuti kenaikan secara terus menerus dari 20 hari hingga 15 hari sebelum gempa.Â Berdasarkan grafik selisih harian SBA, pada 35 hari sebelum gempa muncul anomali medan gravitasi tanggal 28 Januari 2007 dengan perubahan anomali gravitasi maksimum dari tanggal 22 â€“ 23 Februari 2007 sebesar 0,490763281 Âµgal pada titik episenter gempa magnitudo 6,4 dan sebesar 0,49639576 Âµgal pada titik episenter gempa magnitudo 6,3. Sehingga anomali yang muncul tersebut dapat dijadikan pertanda awal (prekursor) gempa bumi.Â Kata kunci : anomali bouguer, gempa bumi, GRACE, gravitasi, polarisasi
Penentuan Energi Keadaan Dasar Osilator Kuantum Anharmonik Menggunakan Metode Random Walk
Authors: Sanubary Iklas , Arman Yudha 
Published: March 2023

Pada penelitian ini, energi keadaan dasar osilator kuantum anharmonik diperoleh menggunakan metode random walk. Suku anharmonik yang digunakan adalah lambda(x^3) dengan memvariasikan nilai lambda. Teori gangguan digunakan untuk memverifikasi hasil metode random walk. Energi keadaan dasar osilator kuantum anharmonik yang diperoleh menggunakan metode random walk memilki sesilih maksimum sebesarÂ 4,107x10^-3 hw atau sekitar 0,8% dibandingkan dengan teori gangguan.
Analisis Model Gelombang Tsunami di Kabupaten Pesisir Selatan Sumatera Barat
Authors: Amirudin Muhammad Ridho , Pujiastuti Dwi , Agfustian Muhamad Rizki 
Published: March 2023

Telah dilakukan penelitian untuk menganalisis model gelombang tsunami di daerah kabupaten pesisir selatan dengan menggunakan TUNAMI-N2 (Tohuku Universityâ€™s Numerical Analysis Model for Investigation of Tsunami, No-2).Â Penelitian ini bertujuan untuk memberikan informasi mengenai nilai run-up, waktu tempuh dan inundasi gelombang tsunami, serta mengetahui daerah rawan tsunami di titik pengamatan yaitu Painan, Batang Kapas, Kambang, Pasar Sungaijalo, Dermaga Carocok, Sungaitalang dan Pasar Baru. Variasi magnitudo yang digunakan yaitu 7,6 Mw sampai 8,6 Mw dengan total skenario sebanyak 72 pemodelan tsunami. Hasil penelitian yang telah didapatkan disajikan dalam bentuk tabel dan peta pengamatan. Daerah yang terdampak pada setiap titik sumber gempa bumi yaitu Painan, Kambang, dan Batang Kapas. Waktu tempuh gelombang tsunami tercepat sampai ke Painan, Kambang dan Batang Kapas yaitu pada skenario 18 dengan magnitudo gempa 8,6 di menit ke-0,2 dengan run up max tsunami sebesar (3,0034; 2,0144; 1,7030) meter dan inundasi tsunami sebesar (36,3; 21,3; 17,1) ha secara berturut-turut. Sedangkan daerah yang tidak terlalu terdapak yaitu Pasar Sungaijalo, Dermaga Carocok dan Pasar Baru. Waktu tempuh terlama di darah Pasar Sungaijalo, Dermaga Carocok dan Pasar Baru yaitu di menit ke (68,8; 67,8; 67,7) dengan nilai run-up max terkecil yaitu (0,0420; 0,0184; 0,0189). Daerah rawan tsunami pada penelitian ini ditentukan dengan menganalisis hasil run-up, waktu tempuh dan inundasi gelombang tsunami dari pemodelan tsunami dengan TUNAMI-N2.
Factors Influencing the Intention for Early Retirement: A Case Study Among Teachers at Secondary Cluster Schools in Dungun, Terengganu
Authors: Muhammud Adida , Abd Aziz Najdah , Abu Bakar Rubiah , Harun Shahariah 
Published: March 2023

Purpose: Teachers’ roles in delivering classroom instructions and executing lessons in this 21st century is much bigger than assumed by many who are not in the teaching field. Some people perceived teaching is a stressful job and those who do not have the passion would give up after a certain number of years. Many have opted for early retirement and this number has increased year by year. Thus, this study aims to analyze the factors (health, school management and workload) that influence teachers’ intention towards early retirement.
Design/Methodology/Approach: 152 teachers were chosen from four cluster schools in Dungun, Terengganu and online questionnaires were distributed among them using Stratified Random Sampling Method. The data was analyzed using SPSS.
Findings: The results show only teachers’ health influence them towards early retirement intention. Meanwhile, the other factors are viewed as a challenge in the teaching world and would not influence them to opt for early retirement.
Implications/Originality/Value: This finding will assist the Ministry of Education in taking actions, to circumvent teachers from leaving their profession before reaching the compulsory retirement age. As a result, the school’s management will focus on improved alternatives in managing the teachers’ welfare and controlling the factors of early retirement among teachers.
Controles de calibragem e boas práticas na mineração para a redução do custo de pneus em caminhões fora-de-estrada
Authors: Oliveira Thaís Janine , Rosa Philipe Innecco , Silva Anna Luiza Marques Ayres da 
Published: March 2023

A gestão de pneus envolve uma operação em que muitas variáveis têm que ser medidas e controladas. Medir, gerir e controlar a utilização dos pneus implica dialogar com atividades e áreas que nem sempre estão em sintonia: operação, manutenção e gestão de pessoas. Através do estudo de caso na Mina de Vazante, foi avaliado o impacto que um conjunto de medidas de gestão de pneus, como manutenção de pistas, controle da carga transportada, monitoramento automatizado de pressão, redução da velocidade máxima para tráfego na mina, frequência da calibragem de pneus, e gestão de equipe teria na redução de custos. Após implantar estas ações, observou-se uma melhora significativa nos indicadores de disponibilidade e utilização dos caminhões, além da redução de custos com pneus em 21,5 % no período analisado, sem impacto na produção mensal. Tais práticas, pouco dispendiosas, eficientes e muitas vezes negligenciadas nas minas, também contribuem a minimização de seus impactos ambientais e podem ser adotadas por outros empreendimentos que utilizam caminhões fora-de-estrada como equipamentos de transporte.
Palavras-chave: Mineração. Disponibilidade. Pneus. Custos. Calibração.

Calibration controls and good mining practices for reducing the cost of tires in off-road trucks
Abstract
Tire management involves an operation in which many variables have to be measured and controlled. Measuring, managing, and controlling the use of tires implies interacting with activities and areas that are not always in harmony: operation, maintenance, and people management. Through the case study at the Vazante mine, the impact that a set of tire management measures, such as lane maintenance, control of transported cargo, automated pressure monitoring, reduction of maximum speed for traffic in the mine, frequency of calibration of tires, and team management would have on cost reduction. After implementing these actions, a significant improvement was observed in the indicators of availability and utilization of trucks, in addition to a reduction in tire costs by 21.5 % in the analyzed period, with no impact on monthly production. Such practices, inexpensive, efficient, and often neglected in mines, also contribute to minimizing their environmental impacts and can be adopted by other enterprises that use off-road trucks as transport equipment as well.
Keywords: Mining. Availability. Tires. Costs. Calibration.
Studi Komparasi Metode American Association of State Highway and Transportation Officials (AASHTO) 1993 dan Metode Bina Marga 2017 Pada Perencanaan Tebal Lapis Perkerasan
Authors: Wesli Wesli , Akbar Said Jalalul , Irwana Irwana 
Published: March 2023

<p class="11daftarpustaka" align="center"><strong>Abstrak</strong></p><p class="11daftarpustaka"> </p><p>Tebal perkerasan yang diteliti akan dikomparasi antara 2 metode yaitu metode Bina Marga 2017 dan metode AASHTO 1993 dengan tujuan untuk mengetahui besarnya komparasi tebal lapis pekerasan jalan. Hasil dari Metode Bina Marga 2017 menggambarkan bahwa tebal total perkerasan 54,5 cm erupa lapisan permukaan 10 cm terdiri dari lapis AC-WC 4 cm dan lapis AC-BC 6 cm, lapisan pondasi 44,5 cm terdiri dari lapis AC Base 14,5 cm dan lapis pondasi bawah 30 cm. Hasil dari Metode AASHTO<em> </em>1993 didapat tebal total 83 cm berupa lapisan permukaan 15 cm, lapis pondasi 68 cm terdiri dari lapis pondasi atas 15 cm dan lapis pondasi bawah 53 cm. Lapis perkerasan AASHTO<em> </em>1993 lebih tebal 65,6% berupa lapis permukaan lebih tebal 66,6%, lapis pondasi lebih tebal 65,4% dari Metode Bina Marga 2017.</p><p> </p><p>Kata Kunci: <em>Komparasi,</em> <em>metode bina marga 2017, metode aashto 1993, perkerasan lentur, tebal perkerasan</em></p><p class="11daftarpustaka" align="center"> </p><p class="11daftarpustaka" align="center"> </p><p class="11daftarpustaka" align="center"> </p><p class="11daftarpustaka" align="center"><strong>Abstract</strong></p><p class="11daftarpustaka"> </p><p class="11daftarpustaka">The thickness of the pavement under study will be compared between the 2 methods, namely the 2017 Bina Marga method and the 1993 AASHTO method with the aim of knowing the magnitude of the thickness comparison of road pavement layers. The results of the 2017 Highways Method illustrate that the total pavement thickness is 54.5 cm, with a surface layer of 10 cm consisting of 4 cm AC-WC layer and 6 cm AC-BC layer, 44.5 cm foundation layer consisting of 14.5 AC Base layer. cm and 30 cm subbase layer. The results of the 1993 AASHTO method obtained a total thickness of 83 cm in the form of a 15 cm surface layer, 68 cm foundation layer consisting of 15 cm top layer and 53 cm bottom layer. The 1993 AASHTO pavement layer was 65.6% thicker in the form of a 66.6% thicker surface layer, 65.4% thicker foundation layer than the 2017 Highways Method.</p><p class="11daftarpustaka"> </p><p class="11daftarpustaka">Keywords: <em>Comparison, 2017 Bina Marga Method, 1993 AASHTO Method, Flexible Pavement, Pavement Thickness</em></p>
PENDAMPINGAN BUDIDAYA CACING SUTRA HIGIENIS DAN BERKELANJUTAN DI KOTA AGUNG - LAMPUNG
Authors: Umidayati Umidayati , Rahardjo Sinung , Nurhudah Moch , Jabbar Meuthia Aulia , Pamarhayani Luchiadini Ika , Khaerudin Khaerudin , Dewi Ita Junita Puspita , Indrayati Artin , Juarsa Juarsa , Herikuswoyo Agus 
Published: March 2023

Pendahuluan untuk memenuhi pakan alami pembudidaya ikan maka di adakannya pendampingan masyarakat di Desa way gelang Tanggamus Lampung. Tentang budidaya cacing sutra yang higienis serta berkelanjutan. Untuk membantu meningkatkan Pendapatan penghasilan menjadi Nelayan yang tidak menentu penghasilanya. Desa ini selain usahanya nelayan sudah terbentuk kelompok usaha budidaya pembesaran ikan nila dan ikan lele di bawah binaan SUPM kotaagung, kebutuhan benih ikan lele dan ikan nila masih membeli dari luar dengan harga cukup tinggi, Manfaat kegiatan melihat dari kebutuhan pakan alami cacing sutra sangat sulit di cari serta harganya mahal dengan adanya pelatihan ke masyarakat tetang budidaya cacing sutra yang higienis dan berkelanjutan di harapkan masyarakat dapat membudidayakan cacing sutra untuk pembenihan ikan konsumsi sendiri serta dapat di jual pada petani pembenihan sehingga dapat menekan biaya oprasional dan mendapatkan tambahan dari hasil jual cacing sutra. Tujuan kegiatan : mendampingan pembudidaya ikan dapat membudidayakan cacing sutra higienis dan berkelnajutan. Metode kegiatan pembentukan kelompok budidaya, sosialisasi, pelatihan, pendampingan dari praprodulsi sampai produksi. Hasil kegiatan masyarakat mampu membudidayakan cacing sutra dengan baik. Kesimpulan kegiatan pendampingan sangat di terima dengan baik oleh masyarakat petani pembenihan di Desa way gelang lampung dengan memberikan teknik langsung tentang budidaya cacing sutra.
Evaluation of Women’s Contribution in Agroforestry Demonstration through Moringa Species Introduction in Western Oromia, Ethiopia
Authors: Duguma Mezgebu Senbeto , Tola Fikadu Kitaba , Teshome Dawit Samuel 
Published: March 2023

Agroforestry technologies are very keen practices in most small-scale farming systems where gender issues are not well considered in most developing countries. Moringa is a tropical plant that consists of 13 species, while five of them are found in Ethiopia. This study aimed to evaluate the potential and contribution of women in agroforestry demonstrations where Moringa oleifera and Moringa stenopetala are introduced in farmers’ fields. Selection of the best performing moringa species and preferred by farmers for further scaling up was also another objective. The activity was conducted in five districts of west and east Wallagga zones. A total of 10 FREG comprising 150 farmers were established. The two moringa species were planted on 100 farmers’ fields where 50 women and 50 men were purposively selected and given responsibilities of moringa demonstration. Leaflets and practical training on moringa production, importance and utilization were prepared and given to all concerned bodies. 84% of women and only 32% of men effectively demonstrated the moringa species. A total of 200 farmers were interviewed to evaluate and select the best from the two species depending on their growth performance, fresh leaf taste and odor, and survival rate. Based on the above criteria, 143 (71.5%) farmers preferred Moringa oleifera. In general, the two moringa species were performed well in most places, and its utilization started at household level. Finally, the authors recommend that women are the potential for demonstrating agroforestry technologies, and Moringa oleifera is a more preferred species in western Oromia.
Reciprocity and Willingness to Pay Taxes: Evidence from a Survey Experiment in
Latin America
Authors: Ortega Daniel , Ronconi Lucas , Sanguinetti Pablo 
Published: March 2023

Are citizens more willing to pay taxes when the government’s performance improves?
We review the tax morale literature, disentangling its different components, and provide
empirical evidence exploiting a novel survey conducted in seventeen Latin American
cities and an experimental attempt at measuring reciprocity in tax collection in
developing countries. The evidence suggests that governments interested in increasing
tax revenues should not focus solely on escalating the coercive power of the state (that
is, more audits and fines). Rather, providing better public services to society can be
an effective (albeit limited) tool to raise revenues. JEL Classification: H26, H3,
O54
Microscopic and histochemical changes in the liver of adult rats with hyperhomocysteinemia
Authors: Maievskyi O. Ye. , Halahan Yu. V. 
Published: March 2023

Violation of amino acids metabolism in the human body is the cause of changes in the structure and functions of almost all vital organs and systems. During the last tens of years, significant efforts of scientists have been directed to the in-depth study of such compound as homocysteine (Hcys), which is a thiol-containing amino acid and is produced endogenously during the exchange of methionine and cysteine. Under the conditions of its normal concentration (5-15 μmol/l), it does not pose a threat to the life and health of living organisms. However, in a number of pathological conditions, a pronounced increase of Hcys in blood plasma and inside cells is registered, which leads to the appearance or progression of diseases, including damage of liver tissue. The aim of the research is to study the microscopic and histochemical changes in the liver of adult rats with hyperhomocysteinemia (HHcys). The experiment was conducted on 22 white non-linear adult male rats aged 6-8 months. During the study, the animals were divided into two groups – control and experimental. Chronic resistance to HHcys was modeled by administering thiolactone Hcys in a dose of 200 mg/kg of body weight intragastrically for 60 days to the rats of the experimental group. Histological preparations were studied using a SEO SСAN light microscope and photo-documented using a Vision CCD Camera with a system of image output from histological preparations. Succinate dehydrogenase was detected histochemically according to the Nakhlas method. These studies were carried out on sections made in a cryostat microtome from unfixed tissue using nitro blue tetrazole. To study the specifics of glycogen accumulation in hepatocytes, sections were stained using Schiff’s reagent, after preliminary treatment with iodic acid (PAS reaction) in the Shabadash modification. It was established that the administration of thiolactone Hcys to young rats at a dose of 200 mg/kg led to an increase in the volume of connective tissue elements around the lobules and in the portal tracts of the liver. Thus, it was established that in the liver of adult rats with HHcys, there is a noticeable thickening of the fibrous connective tissue around the lobules and in the portal tracts, trabeculae dissociation, and the appearance of foci of necrosis of the parenchyma of the organ. Hypertrophy and hyperplasia of smooth myocytes in the middle layer and fibrosis of the outer layer of the wall of interlobular arteries, leukocyte infiltration in the portal tracts are observed. A significant decrease in succinate dehydrogenase activity was established histochemically.