bluuebunny/crossref_metadata_2025 huggingface dataset:
Anemia Treatment, Hemoglobin Variability, and Clinical Events in Patients With Nondialysis-Dependent CKD in Japan
Authors: Kuragano Takahiro , Okami Suguru , Tanaka-Mizuno Sachiko , Uenaka Hidetoshi , Kimura Takeshi , Ishida Yosuke , Yoshikawa-Ryan Kanae , James Glen , Hayasaki Takanori
Published: July 2023

Key Points

This large, contemporary study reports the management of anemia in a real-world cohort of patients with nondialysis-dependent CKD from multifaceted aspects.

This study highlights the suboptimal and heterogeneous treatment of anemia in clinical practice.

The findings also underscore the importance of maintaining a stable hemoglobin concentration within the target range to reduce the risk of mortality and morbidity.

Background

Anemia management in patients with nondialysis-dependent CKD has attracted attention with the introduction of novel therapeutic agents; however, few studies have provided comprehensive epidemiologic information.

Methods

A retrospective cohort study was conducted in adult patients with stage ≥3a nondialysis-dependent CKD and hemoglobin (Hb) <11 g/dl (January 2013–November 2021; N=26,626) to assess longitudinal treatment patterns, Hb, and iron parameters (ferritin and transferrin saturation) for anemia management. Time-dependent Cox proportional hazard models were applied to assess the risk of clinical events, including death, cardiovascular events, dialysis introduction, and red blood cell transfusion, associated with temporal fluctuation patterns of Hb levels.

Results

The cumulative incidence of anemia treatment initiation within 12 months was 37.1%, including erythropoiesis-stimulating agents 26.5%, iron oral 16.8%, iron intravenous 5.1%, and hypoxia-inducible factor prolyl hydroxylase inhibitor 0.2%. The mean (±SD) Hb levels were improved from 9.9±1.2 to 10.9±1.6 g/dl at 12 months. Despite erythropoiesis-stimulating agents or hypoxia-inducible factor prolyl hydroxylase inhibitor therapy, 30.1% of patients remained Hb <10 g/dl. The risks of premature death, cardiovascular events, dialysis introduction, and red blood cell transfusion were significantly higher in groups with consistently low Hb or low-amplitude Hb fluctuation around the lower limit of target Hb range than in patients with target Hb range (P < 0.05). Similarly, significantly higher risks for dialysis introduction and red blood cell transfusion were associated with high-amplitude Hb fluctuation across target Hb range were observed.

Conclusions

The findings underscore the importance of stable Hb control within the target range to reduce the mortality and morbidity risks in patients with nondialysis-dependent CKD while highlighting the suboptimal and heterogeneous treatment of anemia in clinical practice.
Monotonía (Viceversa)
Authors: Pensa Mariana
Published: July 2023

Reseña de la obra Monotonía (Viceversa), escrita por el dramaturgo, actor y director Diego Bernachi.
Aproximación teórica a la técnica del Bufón
Authors: Garcia Pablo Facundo
Published: July 2023

El presente trabajo pretende poner en diálogo registros de talleres y entrevistas (a Julieta Daga y Luciano Delprato) sobre la técnica de bufón con algunas nociones vinculadas a la teoría teatral.  Para ello, se trabaja inicialmente sobre las ideas de moral, política y poder en la técnica bufona para luego ahondar en las deformidades corpóreas de estas criaturas. Por último se atiende a la estrategia con la que los bufones abordan la escena contemporánea. El trabajo busca dar cuenta de una técnica oscilante (en varios sentidos) que podría sostener claves para permitirnos pensar, un paso más allá, un (y no el) teatro que necesitamos.
Escofet, Cristina. (2022). Travesías femeninas.
Authors: De León Pilar
Published: July 2023

Reseña del libro que contiene las obras de Cristina Escofet: Fridas;  Sol de Noche; Yo, Encarnación Ezcurra; Sonata erótica del Río de la Plata; Las Lucías; y A través de los granos de maíz (Memorias de Malinalli)
A Method of Human-Like Compliant Assembly Based on Variable Admittance Control for Space Maintenance
Authors: Cao Xiaolei , Huang Xiao , Zhao Yan , Sun Zeyuan , Li Hui , Jiang Zhihong , Ceccarelli Marco
Published: July 2023

On-orbit assembly has become a crucial aspect of space operations, where the manipulator frequently and directly interacts with objects in a complex assembly process. The traditional manipulator control has limitations in adapting to diverse assembly tasks and is vulnerable to vibration, leading to assembly failure. To address this issue, we propose a human-like variable admittance control method based on the variable damping characteristics of the human arm. By collecting the velocity and contact force of human arm operations in assembly, we analyze the damping change of human arm and establish the active compliance model based on S-type damping variation rule in assembly. Furthermore, 3 passive contact models are proposed between the end of the human arm and the environment: one-sided bevel contact, both sides bevel contact, and pin–hole contact. On the basis of these active and passive models, a typical space assembly task for a robot is designed, and a human-like variable admittance controller is established and simulated. Finally, we build a ground verification platform and complete different assembly tasks, thereby successfully verifying the safety, robustness, and adaptability of the human-like variable admittance control method.
Large-Scale CRISPR Screen of LDLR Pathogenic Variants
Authors: Li Mengjing , Ma Lerong , Chen Yiwu , Li Jianing , Wang Yanbing , You Wenni , Yuan Hongming , Tang Xiaochun , Ouyang Hongsheng , Pang Daxin
Published: July 2023

Familial hypercholesterolemia (FH) is a frequently occurring genetic disorder that is linked to early-onset cardiovascular disease. If left untreated, patients with this condition can develop severe cardiovascular complications. Unfortunately, many patients remain undiagnosed, and even when diagnosed, the treatment is often not optimal. Although mutations in the
LDLR
gene are the primary cause of FH, predicting whether novel variants are pathogenic is not a straightforward task. Understanding the functionality of LDLR variants is crucial in uncovering the genetic basis of FH. Our study utilized CRISPR/Cas9 cytosine base editors in pooled screens to establish a novel approach for functionally assessing tens of thousands of LDLR variants on a large scale. A total of more than 100 single guide RNAs (sgRNAs) targeting
LDLR
pathogenic mutations were successfully screened with relatively high accuracy. Out of these, 5 sgRNAs were further subjected to functional verification studies, including 1 in the promoter, 1 in the antisense RNA, 1 in the exon, and 2 in the intron. Except for the variant caused by the sgRNA located at intron 16, the functionalities of the other LDLR variants were all downregulated. The high similarity of
LDLR
intron sequences may lead to some false positives. Overall, these results confirm the reliability of the large-scale screening strategy for functional analysis of LDLR variants, and the screened candidate pathogenic mutations could be used as an auxiliary means of clinical gene detection to prevent FH-induced heart disease.
Factors Mediating the Link Between Engagement and Satisfaction Among Online English-Mediated Instruction Learners During COVID-19
Authors: Murdoch Yvette Denise , Lin Yu-Hsuan
Published: July 2023

The COVID-19 pandemic forced universities worldwide to make the switch to online instruction, raising concerns about the quality of online courses and their impact on student satisfaction and engagement. This study aimed to explore Korean university students’ satisfaction levels with online English-mediated instruction (EMI) courses during the pandemic and identify factors that influence class satisfaction. The purpose of this study was to provide insights into how EMI instructors could improve their online teaching practices during and after a pandemic. The hypothesis was that instructional strategies (IS), academic conscientiousness (AC), and academic integration (AI) could mediate the link between engagement and satisfaction. The study used a survey design to collect data from 219 Korean university students who took online EMI courses during the spring 2020 semester. The survey collected demographic information as well as students’ perceptions of valuable IS, AC, AI, and satisfaction. Data analysis included independent samples t-test, correlation analysis, Structural Equation Modelling (SEM), and multiple regression analysis. The results showed IS use and satisfaction differed among disciplines. Specifically, there were significant differences in satisfaction levels between Arts, STEM, Business, Social Sciences, and Literature and Languages majors. Additionally, there were significant relationships between demographics, AC, AI, IS use, and satisfaction. SEM was used to provide a general view of factors mediating the link between engagement and satisfaction. The results revealed that AC, AI, and IS use mediated the link between engagement and satisfaction. Multiple regression analysis showed that students were more satisfied with instructors who demonstrated care and warmth using social networking sites to communicate. Overall, this study provides valuable insights into student satisfaction with online EMI courses during the COVID-19 pandemic and for the future of online EMI teaching-learning. The findings suggest that online EMI instructors should consider using social networking sites to communicate with students in order to increase satisfaction levels. Additionally, instructors should be aware that different disciplines may require different instructional strategies to maximize student engagement and satisfaction.
Analisis Sistem Pentanahan Gedung Pascasarjana Menggunakan Metoda Tiga Titik Di Universitas Lancang Kuning
Authors: Abrar Tanjung  , Arlenny
Published: July 2023

Sistem pentanahan merupakan suatu cara untuk menyalurkan arus listrik yang terjadi akibat sambaran petir pada sebuah objek dalam bangunan terdapat sistem kelistrikan digunakan untuk peralatan listrik dan elektronika. Sistem pentanahan di gunakan untuk mengamankan bangunan dari bahaya kebakaran akibat sambaran petir, mengamankan peralatan listrik dan elektronika dan manusia dihubungkan dengan kawat atau kabel penghantar menuju elektroda yang dipasang dalam tanah. Metode penelitian melakukan analisis data dari data data yang diperoleh untuk mendapatkan hasil besar nilai tahanan pentanahan, arus gangguan singkat, kenaikan phasa sehat dan tegangan sentuh serta tegangan langkah pada gedung Pascasarjana Unilak. Tujuan penelitian untuk menganalisa nilai besar tahanan sistem pentanahan, menganalisa arus gangguan hubung singkat yang terjadi pada sistem pentanahan, menganalisa kenaikan tegangan phasa, dan menganalisa tegangan sentuh dan tegangan langkah pada gedung Pascasarjana Universitas Lancang Kuning. Dengan menggunakan metoda penelitian tiga titik diperoleh hasil perhitungan pada pentanahan Gedung Pascasarjana sebesar 28 ohm, besar nilai tahanan titik netral sebesar 0,00465 ohm, tegangan sentuh sebesar 149,5 volt, tegangan langkah sebesar 208 volt, perhitungan arus gangguan hubung singkat sebesar 1,15 amper, sedangkan kenaikan tegangan phasa sehat 308 volt
La educación multi, inter y transdisciplinar en la formación a lo largo de la vida
Authors: Sotto Díaz Arcadio , Arroyo Martínez Laura , Santaella Vallejo Almudena
Published: July 2023

Los Estados deben deben apoyar fuertemente por la mejora de sus sistemas educativos, con el fin de que estos puedan formar ciudadanos del mañana que se comprometan con la construcción de sociedades económicamente responsables, sociales, igualitarias, ecológicas y, en definitiva, altamente cualificadas para construir un mundo mejor en toda la amplitud del término. Para ello sus sistemas educativos deben integrar la inter y la transdisciplinariedad educativa como métodos de enseñanza extendidos en todos los niveles, con el fin de formar personas que puedan comprender la realidad desde diferentes ángulos y alcancen resultados gracias al conocimiento de distintas disciplinas combinadas. De esta manera, los profesionales del futuro podrán ser más creativos, resolutivos y eficientes, serán menos manipulables y podrán tomar las mejores decisiones, tanto en el nivel individual, como colectivo.
Pelatihan Pembuatan Jahe dan Kunyit Instan Pada Masyarakat Kelurahan Lasiana-Kota Kupang
Authors: Pah Jack Carol Adolf , Abolladaka Jacob , Riwu Defmit B. N.
Published: July 2023

Abstract

This activity is intended to provide understanding and skills to the community in Lasiana Subdistrict, at Kupang City, on how to use house yard land to provide added value for family needs. This activity focuses on two types of plants, ginger and turmeric. How to grow a good ginger and turmeric, and maintain it. Giving added value to these two types of plants by processing them into ready-to-eat (instant) ginger and turmeric. The method used in this activity is interactive lectures and training (practice). Entrepreneurship and marketing of home industry products is also provided as additional knowledge. The participants are able to have skills in processing ginger and turmeric, into instant ginger and turmeric, which can be seen by their ability to make these products. The interest and knowledge of the participants in entrepreneurship must be followed up on the next activity.

Keywords: ginger, turmeric, home yard use, added value, home industry

Abstrak

Kegiatan ini dimaksudkan untuk memberi pemahaman dan juga memberi ketrampilan pada masyarakat Kelurahan Lasiana di Kota Kupang, tentang bagaimana memanfaatkan lahan pekarangan untuk memberi nilai tambah bagi pemenuhan kebutuhan keluarga. Pada Kegiatan ini lebih di fokuskan pada dua jenis tanaman yaitu jahe dan kunyit. Bagaimana cara menanam jahe dan kunyit yang baik, dan memeliharanya. Pemberian nilai tambah pada kedua jenis tanaman ini, dengan mengolahnya menjadi jahe dan kunyit instan siap saji. Metode yang digunakan dalam kegiatan ini adalah ceramah interaktif dan pelatihan (praktek) pembuatannya. Tambahan pengetahuan mengenai kewirausahaan dan pemasaran produk industri rumah tangga, juga diberikan sebagai materi tambahan dalam kegiatan ini. Peserta kegiatan mampu menguasai dengan baik ketrampilan dalam mengolah jahe dan kunyit, menjadi jahe dan kunyit instan. Hal ini terlihat dengan mampunya mereka dalam membuat produk ini. Ketertarikan dan pengetahuan peserta kegiatan ini pada kewirausahaan merupakan suatu yang mengembirakan dan harus ditindaklanjuti pada kegiatan berikutnya.

Kata Kunci: Jahe, kunyit, pemanfaatan pekarangan, nilai tambah, industri rumah tangga
Pemanfaatan Media Promosi Kesehatan untuk Mengurangi Stigma Negatif terhadap Penyintas Covid-19
Authors: Riwu Rut Rosina , Takaeb Afrona E. L. , Boeky Daniela L. A. , Folamauk Conrad L. H.
Published: July 2023

Abstrak

COVID-19 adalah penyakit menular yang disebabkan oleh coronavirus yang baru ditemukan pada tahun 2019 di Wuhan, Tiongkok. COVID-19 kini menjadi sebuah pandemi yang mengancam seluruh dunia. Tidak sedikit masyarakat yang menciptakan stigma terkait penyakit ini, sehingga para penyintas Covid-19 biasanya ditakuti dan sangat dijauhi oleh masyarakat yang belum benar-benar memahami tentang penyakit ini. Tujuan PkM ini adalah untuk mengurangi stigma negatif terhadap para penyintas Covid-19 dengan memanfaatkan media promosi kesehatan berupa video, poster, dan stiker yang dipasang pada empat gereja yang tersebar di Kota Kupang, yaitu GMIT Pohonitas Manulai II, GMIT Kota Kupang, GMIT Paulus, dan GMIT Ararat. Kegiatan ini dilaksanakan dengan pembuatan, pemasangan, penayangan, dan penyebarluasan media promosi kesehatan tersebut. Media visual dan audio visual tersebut dipasang dan ditayangkan pada lokasi target, yaitu empat tempat ibadah (gereja) yaitu GMIT Pohonitas Manulai II, GMIT Kota Kupang, GMIT Paulus, dan GMIT Ararat. Kegiatan ini dapat dijalankan dengan baik, namun mengalami kendala karena kegiatan dilaksanakan pada saat keadaan pandemi Covid-19 di Kota Kupang mencapai PPKM level empat, sehingga tempat-tempat kebaktian ditutup untuk sementara waktu. Untuk itu kegiatan dapat dilakukan ketika tempat kebaktian kembali dibuka. Berdasarkan hasil observasi, dengan respon positif gereja menerima semua media promosi kesehatan yang diberikan.

 

Kata kunci: Covid-19, stigma negatif, penyintas, promosi kesehatan, media.

 

 

Abstract  

COVID-19 is an infectious disease caused by a new coronavirus that was discovered in 2019 in Wuhan, China. COVID-19 is now a pandemic that threatens the whole world. Not a few people have created a stigma related to this disease, so Covid-19 survivors are usually feared and very shunned by people who don't understand this disease. This acitivity aimed to reduce the negative stigma towards Covid-19 survivors by utilizing health promotion media i.e. videos, posters, and stickers for four churches in Kupang City, i.e. GMIT Pohonitas Manulai II, GMIT Kota Kupang, GMIT Paulus, and GMIT Ararat. This activity is carried out by creating, setting, broadcasting, and disseminating the health promotion media. The visual and audiovisual media were posted and broadcast at the target locations (four churches). This activity can be carried out well but has encountered problems because the activity was carried out when the Covid-19 pandemic in Kupang City reached PPKM level four, so the church were temporarily closed. For this reason, activities can be carried out when the church is re-opened. Based on the results of observations, with a positive response, the church accepted all the health promotion media provided.
Pelatihan Paving Block bagi Pemuda GMIT Tamariska Maulafa Kota Kupang
Authors: Mauboy Evtaleny R. , Manafe Yermia Djefri , Sina Dantje
Published: July 2023

Abstrak

Generasi muda merupakan bagian dari masyarakat sosial yang memegang peranan penting dalam meregensi banyak aspek kehidupan. Kelompok ini berpeluang untuk bertindak sebagai agent of change bagi bangsa dan negara melalui ide – ide yang kreatif dan inovatif. Berdasarkan survei yang dilakukan di Kelurahan Maulafa, masih banyak para pemuda menghabiskan waktunya hanya untuk nongkrong bersama teman dan melakukan hal-hal yang tidak produktif seperti bermain game online atau bahkan mabuk. Solusi yang ditawarkan dari program ini adalah memberikan pemahaman dan keterampilan dalam bentuk usaha kreatif serta menanamkan rasa peduli terhadap lingkungan kepada Pemuda Gereja yang bernilai ekonomi yaitu merangsang potensi Pemuda Gereja dalam kegiatan pemberdayaan melalui usaha kreatif ekonomis pembuatan paving block.

  

Abstract  

The younger generation is part of a social society that plays an important role in managing many aspects of life. This group has the opportunity to act as agents of change for the country through creative and innovative ideas. Based on a survey conducted in Maulafa, there are still many teenagers who spend their time just hanging out with friends and doing unproductive things such as playing online games or even getting drunk. The solution offered from this program is to provide understanding and skills in the form of creative businesses and instill a sense of care for the environment, which has economic value, stimulating the potential of the teenager in empowerment activities through economical creative business in making paving blocks.
PEMANFAATAN PAKAN KONSENTRAT DALAM RANSUM SAPI BALI
Authors: Lasarus Edwin J. L , Wie Lawa Emma D. , Makandolu Solvi M.
Published: July 2023

Abstrak

Persepsi masyarakat kelompok tannin Amnelabubuk, kelurahan Naioni Kota Kupang tentang pemanfaatan pakan konsentrat dalam ransum ternak sapi masih rendah. Pengenalan teknologi pemanfaatan pakan konsentrat merupakan suatu inovasi yang diharapkan dapat diadopsi dengan baik oleh masyarakat peternak. Kegiatan pengabdian pada masyarakat ini dilakukan dengan tujuan meningkatnya pengetahuan dan pemahaman masyarakat kelompok tani Amnelabubuk memanfaatkan pakan konsentrat dalam meningkatkan produktivitas ternak sapi yang dipelihara. Kegiatan yang dilakukan meliputi penyuluhan dan pelatihan pakan konsentrat dalam ransum ternak sapi. Masyarakat peserta kegiatan sangat antusias dan mebuka diri untuk menerima inovasi baru dalam meningkatkan produktivitas ternak sapi yang dipeliharanya. Partisipasi aktif dan kemauan merubah pola pikir dan tingkahlaku setelah menerima transfer informasi dan teknologi yang disampaikan akan meningkatkan produktivitas usaha dan keuntungan ekonomi dari usaha pemeliharaan ternak sapi.

 

Abstract

Public perception of the farmers group of Amnelabubuk, Naioni Village, Kupang City regarding the use of concentrate feed in cattle rations is still low. The introduction of concentrate feed utilization technology is an innovation that is expected to be well adopted by the farming community. This community service activity is carried out with the aim of increasing the knowledge and understanding of the Amnelabubuk farmer group community using concentrate feed in increasing the productivity of the cattle that are kept. Activities carried out include counseling and training on concentrate feed in cattle rations. The community participating in the activity were very enthusiastic and open themselves to accept new innovations in increasing the productivity of the cattle they raise. Active participation and willingness to change mindsets and behavior after receiving the transfer of information and technology conveyed will increase business productivity and economic benefits from cattle raising business.
The Impact of E-government on the Effectiveness of Anti-corruption Efforts in the Jordanian Governmental Agencies from the Perspective of the Teaching Staff in the Jordanian Public Universities
Authors: Al-Zaza Rawiya Khaled , Al- Khasawneh Anis Saqer
Published: July 2023

This study aimed to investigate the impact of e-government implementation on the effectiveness of anti-corruption efforts in the Jordanian government agencies and to identify the level of both e-government implementation and the effectiveness of anti-corruption efforts in government agencies from the perspective of the academic staff in the Jordanian public universities. A questionnaire was developed and distributed to a convenient non-probability sample from ten public universities. The number of retrieved valid questionnaires amounted to (596). The findings of the study revealed a moderate level of e-government implementation and effectiveness of anti-corruption efforts in government agencies. Notwithstanding the medium level of e-government implementation, the level of speed in providing service came high. The dimensions of the effectiveness of anti-corruption efforts displayed a medium degree; however, a low degree in competence and merit-based government appointments has been yielded. The findings reported a significant medium impact of e-government on the effectiveness of anti-corruption efforts. The study recommended that training programs should be designed and launched to develop the skills of employees and supervisors in charge of e-government applications and spreading the e-government culture through media programs to identify and enhance its applications and utility. Moreover, e-government applications should be designed so that transparency and accountability can be enhanced and employees' exploitation of their jobs for personal gains can be reduced, if not eliminated. It has been recommended that competence and professional experience should be observed in the appointment to government jobs. The study also recommended that further studies are needed to find out the reasons that lead to citizens’ reluctance or disenchantment to use e-government and find ways and means to raise the awareness of the use of e-government applications in the various branches of government agencies in the governorates.
Factores Sociodemográficos y Resiliencia en Directivos de Instituciones Educativas Públicas de Perú
Authors: Del Águila Chávez Mónica Rocío
Published: July 2023

El objetivo general de la presente investigación fue determinar los factores sociodemográficos relacionados a la resiliencia en directivos de instituciones educativas públicas del Perú. El diseño utilizado fue el no experimental, transversal, correlacional no causal. La muestra estuvo conformada por 1061 directivos (directores y subdirectores) de escuelas públicas del Perú. El muestreo fue no probabilístico por conveniencia. Los instrumentos utilizados fueron una Ficha sociodemográfica diseñada para esta investigación y la Escala de Resiliencia docente, para la cual se determinó evidencias de validez y confiabilidad. Los resultados indicaron que las variables sociodemográficas relacionadas a la resiliencia fueron el sexo femenino (OR=1.59 [IC95%=1.13-2.23]; X2=6.666: p<.01); el número de tres personas dependientes (OR=0.63 [IC95%=0.44-0.91]; X2=5.707: p<.05); contar con el servicio de internet (OR=1.60 [IC95%=1.04-2.47]; X2=4.136: p<.05); haber estudiado maestría y doctorado (OR=2.28 [IC95%=1.16-4.47]; X2=5.286: p<.05) y no haber obtenido un grado académico de posgrado (OR=0.66 [IC95%=0.47-0.93]; X2=5.337: p<.05). Las implicancias del estudio fueron discutidas.
Una revisión sistemática de la literatura en Scopus sobre deserción universitaria y brechas digitales en un contexto del COVID-19
Authors: Cristóbal Delgado Ruth , Fernández-García Carlos Enrique , Guzmán Hurtado Zoila , Maraví Curilla Nathaly , Pablo Cerna César Augusto
Published: July 2023

Un índice de la calidad de la educación que se imparte en las universidades está ligado a la deserción escolar. Entre los factores hallados por Ruiz-Ramírez et al. (2014) se reseñan el personal, económicos, familiares, docentes y otros factores como el estereotipo de género, pandillaje, salud y brechas digitales. La pandemia de marzo 2020 evidenció las brechas digitales y dividió más a la humanidad, entre quienes tienen el acceso a la información y tecnología desde un ordenador con Internet y quienes no cuentan con las herramientas digitales empleadas por estudiantes universitarios durante el aislamiento social. En la presente revisión sistemática abordaremos qué revela el estado de la cuestión sobre la influencia de las brechas digitales en la deserción de estudiantes universitarios en el contexto de la COVID-19. Para llevar a cabo esta investigación se realizó una revisión de literatura a través de un diseño bibliográfico de tipo documental con el uso del software R-Estudio con interfaz Bibliometrix. Además, se empleó el método de la Declaración Prisma (Urrutia y Bonfill, 2010). En relación con los resultados, podemos acusar la falta de interés de la comunidad científica en investigar la deserción universitaria a causa de las brechas digitales y cómo revertir, a través de políticas públicas, las desigualdades tecnológicas. Se concluye que es menester concientizar a los docentes investigadores, especialistas en educación, a explorar estos terrenos vinculados a las desigualdades propias de una instrucción virtual.
Impact of Mn doping on the ferroelectric photovoltaic effect in multidomain BiFeO3 thin films under above-bandgap illumination
Authors: Matsuo Hiroki , Noguchi Yuji
Published: July 2023

While recent studies have revealed that chemical doping can enhance the photovoltaic (PV) response of ferroelectrics under light with photon energy (hν) lower than the bandgap energy (E
g), its impact under above-bandgap illumination (hν > E
g) is not fully understood. In this study, the PV response at hν > E
g of Mn-doped BiFeO3 (BFO) thin films with a periodic stripe domain pattern is investigated. The short-circuit photocurrent density (J
sc) and open-circuit voltage decrease with increasing Mn content. Analyses of the light-polarization angle dependence of J
sc indicate that the PV response arises primarily from the non-centrosymmetric nature of crystal lattices in both the bulk and domain wall (DW) regions. In contrast, the contribution of local electric fields (E
local) across DWs which dominates the PV response of undoped BFO films is significantly suppressed by doping. We consider that a screening effect by charged defects leads to a suppressed E
local in the Mn-doped films.
Characterization of coincidence time resolutions of TlBr
x
Cl1−x
crystals as Cherenkov radiators
Authors: Hitomi Keitaro , Kim Cheonghun , Nogami Mitsuhiro , Shimazoe Kenji , Takahashi Hiroyuki
Published: July 2023

The coincidence time resolutions of thallium bromide chloride (TlBr
x
Cl1−x
) crystals used as Cherenkov radiators were characterized. A pair of TlBr
x
Cl1−x
crystals with the same composition was used to coincidentally detect positron annihilation gamma rays from a 22Na source. The size of the crystals was approximately 3 mm × 3 mm × 3 mm. A polished surface of the crystals was coupled to a silicon photomultiplier. The time resolution improved with an increase in the Cl concentration in the crystals. TlBr0.3Cl0.7 crystals exhibited the best coincidence time resolutions of 378 ± 17 ps and 635 ± 31 ps with and without event selection based on the photoelectron level, respectively.
Analisis Kelaiktabrakan Dari Struktur Kolom Yang Diisi Dengan Foam Dan Tanpa Foam Terhadap Beban Pada Subfloor Helikopter
Authors: Difa Rasyidah Azzahra , Sitompul Sahril Afandi , Chaeroni Amat
Published: July 2023

Kelaiktabrakan (crashworthiness) merupakan suatu kemampuan dari struktur kendaraan untuk berdeformasi dengan gaya yang terkontrol dan memberikan ruang yang cukup untuk penumpang sehingga membatasi kemungkinan cedera selama peristiwa tabrakan terjadi. Lalu lintas penerbangan di Indonesia mengalami tren peningkatan dari tahun ke tahun. Peningkatan frekuensi penggunaan pesawat terbang tentunya akan meningkatkan kemungkinan kejadian kecelakaan. Konsep kelaiktabrakan pesawat terbang menjadi hal penting yang perlu mendapat perhatian untuk mencegah kerusakan struktur dan cedera pada penumpang. Desain kelaiktabrakan struktur pesawat berada pada tahapan desain awal yang terintegrasi kedalam proses desain pesawat secara keseluruhan menggunakan simulasi Abaqus CAE. Struktur subfloor pada pesawat terbang menjadi bagian yang digunakan untuk menyerap energi kinetik tabrakan dalam kasus pembebanan vertikal pada pesawat terbang. Crash box merupakan komponen pada subfloor yang akan menyerap energi kinetik tabrakan dengan mengubahnya menjadi deformasi plastis. Dimana bentuk octagonal dengan kecepatan 15 m/s memiliki nilai Pmax paling tinggi yaitu 12223.8 kN. Mendapatkan nilai crushing force efficiency (CFE) terbesar dari model Crashbox Square dengan variasi kecepatan 5m/s yaitu bernilai 0.91 dan model Crashbox octagonal dengan variasi kecepatan 5m/s bernilai 0.85.
Pixel based Classification of Poultry Farm using Satellite Images
Authors:   Department of Electronics and Communication Engineering, PES University- RR Campus, Bengaluru (Karnataka), India, M Roshini , Poompavai Dr. V ,   RRSC- South, NRSC, ISRO Marathahalli, Bengaluru (Karnataka), India., Raj Dr. K Ganesha ,   RRSC- South, NRSC, ISRO Marathahalli, Bengaluru (Karnataka), India.
Published: July 2023

Remote sensing has emerged as a compelling tool to survey and monitor natural resources and other features of an area due to the inherent advantages of synoptic view, repetitive nature and capability to study inaccessible areas. Satellite data/aerial photos are interpreted using keys such as colour/tone, texture, pattern, association, size, shape, etc., and computer-based techniques. Presently geospatial technology is used in various sectors like agriculture, forestry, geology, marine, urban and rural planning and so on, with applications in agriculture seeing a rise in India. This paper elaborates on the method employed for identification of poultry farms in India, using images from satellites such as CARTOSAT and RESOURCESAT (LISS4) and also Google Earth Images. Each poultry farm varies in the size and number of poultry sheds which further depend on the number of chickens bred, location of vegetation and water resources nearby, temperature and humidity of location, etc. Thus, based on these factors, training sites in Hessarghatta, Harohalli, Dommasandra near Bengaluru City, Karnataka were identified. The paper elucidates application of vegetation and water masks using the classification of NDVI. Two pixel-based classification techniques - Maximum Likelihood Classifier and K-Nearest Neighbour Classifier using SNAP Application were applied. Statistics were observed for the accuracy of classified output, and it was shown that Maximum Likelihood Classifier provided more accurate results. The method presented in this paper can be fine-tuned and applied for poultry farms anywhere by studying Poultry Farms in different terrains and using various associations to identify them.
The Effect of Prosthesis Socket Variations on Gait Deviation in Patients with Transfemoral Short Stumps: A Case Study
Authors: Silmia Ana , Hjelmström Olle , Karma Agusni , NS Widada
Published: July 2023

Background: The most common problem in patient transfemoral short stump is lack of stability during walking and creates gait deviation. One of the things that can increase the stability is which socket that used. Socket is the most important part of prosthesis for increasing stability for the patient itself. Because of that really important to decide which socket that has gait deviation close to normal especially for patient transfemoral short stump.
Objectives: To know which socket that has gait deviation especially for lateral trunk bending and abducted gait those close to normal gait for patient transfemoral short stump with using quadrilateral socket and IC socket.
Methods: This research is using case study method. Sample of this research is patient transfemoral short stump, male, 54 years old. Patient asked for use quadrilateral socket and IC socket 2 days each. Observation of gait deviation is using recorder. Degree of lateral trunk bending and distance of abducted gait were measured by recording in 2nd meter until 6th meter. This research has done in Clinic ortothotics prosthetics Poltekkes Kemenkes Jakarta I.
Results: Result of the research shows that socket that have gait deviation less than ideal normal espsecially degree of lateral trunk bending and distance of abducted gait is IC socket compare to quadrilateral socket. Degree of lateral trunk bending while using ic socket got 10,07° but for quadrilateral socket got 12,57° with ideal normal is 11,32°. Distance of abducted gait for IC sockets is 25,8 cm but quadrilateral is 29 cm with distance ideal normal is 27,4 cm.
Conclusion: This research shows that there is any effect of difference sockets toward gait deviation especially lateral trunk bending and abducted gait for patient transfemoral short stump. From this research get results socket that better for patient transfemoral short stump is IC socket.
RELATIONSHIP BETWEEN BACKPACK USE AND POSTURAL DISORDERS (SCOLIOSIS) IN ELEMENTARY SCHOOL STUDENT
Authors: Illiyin Shabrina , Karma Agusni , Triyani Triyani , Yunihanawati Rizan
Published: July 2023

Background. The use of backpacks that are not suitable both in terms of design, weight of the load, and how to use it can have a negative impact on students due to increased pressure on the spinal structure of adolescents during their growth period. Early detection (scoliosis screening) must be carried out to determine the long-term effects of using the wrong backpack so that treatment can be carried out as soon as possible to avoid the occurrence of more severe musculoskeletal disorders. Aim. Analyzing the relationship between the use of non-ergonomic backpacks on spinal abnormalities (scoliosis) in students Cilandak Barat 08 Elementary School South Jakarta. Method. Analytical quantitative research, by conducting a cross-sectional study simultaneously on individuals of a population at a time. Result. This research found there was no significant relationship between backpack characteristics and the incidence of scoliosis (p-value 1.000) and OR 1.261. It was found that on average the respondents experienced musculoskeletal complaints due to the use of backpacks with non-ergonomic characteristics about 64.8% and scoliosis prevalence about 20.5%. Conclusion. There is no relationship between the characteristics of the backpack with the incidence of scoliosis. The use of a non-ergonomic backpack can still be used by considering the recommended aspects while using it.
VFogSim: A Data-driven Platform for Simulating Vehicular Fog Computing Environment
Authors: Akgul Ozgur Umut , Mao Wencan , Cho Byungjin , Xiao Yu
Published: July 2023

Edge/fog computing is a key enabling technology in 5G and beyond for fulfilling the tight latency requirements of emerging vehicle applications, such as cooperative and autonomous driving. Vehicular Fog Computing (VFC) is a cost-efficient deployment option that complements stationary fog nodes with mobile ones carried by moving vehicles. To plan the deployment and manage the VFC resources in the real world, it is essential to take into account the spatio-temporal variations in both demand and supply of fog computing capacity and the trade-offs between achievable Quality-of-Services and potential deployment and operating costs. Concerning the complexity and the economic load of real-world measurements, simulation becomes a better option at the early research phase to validate capacity and resource management solutions in various urban environments. The existing simulation platforms cannot provide a realistic techno-economic investigation to analyze the implications of VFC deployment options, due to the simplified network models in use, the lack of support for fog node mobility, and limited testing scenarios. In this paper, we propose an open-source simulator VFogSim that allows real-world data as input for simulating the supply and demand of VFC in urban areas. It follows a modular design to evaluate the performance and cost-efficiency of different deployment scenarios under various vehicular traffic models, and the effectiveness of the diverse network and computation schedulers and prioritization mechanisms under user-defined scenarios. Compared with the existing edge/fog computing simulators, such as IFogSim, IoTSim, and EdgeCloudSim, to the best of our knowledge, our platform is the first one that supports the mobility of fog nodes and provides realistic modeling of V2X in 5G and beyond networks in the urban environment. Furthermore, we validate the accuracy of the platform using a real-world 5G measurement and demonstrate the functionality of the platform taking VFC capacity planning as an example.
Rhodes: A Next-Generation OS based on Grid Governance Model
Authors: Wang Changsheng
Published: July 2023

At present, four types of OS kernels are widely available: monolithic kernels, microkernels, hybrid kernels, and exokernels. These kernel architectures are either too tightly-coupled such as monolithic,  or too loose such as exokernels, or have no rules such as hybrid kernels. In recent years, to solve these problems, resource management concept frequently appears in industry and academia. Although resource management concept makes resources in OSes orderly, no existing OSes or software systems can flexibly orchestrate resource invocation.

This paper attempts to unify the ServiceMesh architecture and OSes, proposing a grid governance model that places resources such as applications and hardware into a grid. Through unified rule governance in the model, the organization of resources in the grid is more flexible and scalable. At the same time, by separating rules from resource grid, rules in the model are also scalable. Based on the model, we built Rhodes OS that allows users to modify and extend resource management rules by governance center. We implemented Rhodes on x86-64 and evaluated it. Our evaluation results show that applications performance in Rhodes is equivalent to Linux. We believe that OSes based on the  grid governance model will pave the way for a brand new direction in the development of operating systems.
Scalable and Resilient 360-degree-Video Adaptive Streaming over HTTP/2 against Sudden Network Drops
Authors: Nguyen Viet Hung , Truong Thu Huong , Truong Thang
Published: July 2023

Realistic Virtual Reality is supported by 360° video, which provides viewers with an immersive watching experience. However, 360° video is bulky in size, while the transmission system has limited ability to provide bandwidth. As such, intelligent adaptive delivery solutions play a crucial role in enabling users to stream high-quality 360° video. In this research, we propose a novel approach for 360-degree video streaming over HTTP/2 that can provide consumers with a good watching experience (QoE) even in varying network circumstances and head-eye movements over time. The proposed method deploys the so-called BBAG algorithm (Buffer and Bandwidth Allocation Algorithm) using Scalable Video Coding to choose appropriate tile layers to resolve the trade-off between network and user adaptivity. With the support of HTTP/2's stream termination capability, the delivery of late tile layers is terminated to handle abrupt interruptions. BBAG is proven to improve QoE from 3.56% to 93.71% and the average viewport bitrate from 1.78% to 80.49% compared to state-of-the-art methods.
Exact solution to the mean value theorem applied to the maximum power point estimation
Authors: Tirado José
Published: July 2023

In this work, the exact solution to the mean value theorem (MVT) problem applied to the maximum power point (MPP) calculation is presented, besides an improvement to this solution is developed based on an expression of the MPP that depends on the optimal load and the characteristic parameters of the photovoltaic (PV) module. Both approximations depend only on the natural logarithm, avoiding the evaluation of the W function. The validation of the approximations is performed by comparing them with real measurements and the numerical solution of the 5-parameter single diode model (SDM) using dataset from 11 commercial modules and 6 different technologies, as well as by comparing them with existing approximations in the literature..
Improving the Representation and Extraction of Contact Information in Vision-based Tactile Sensors Using Continuous Marker Pattern
Authors: Li Mingxuan , Zhou Yen Hang , Li Tiemin , Jiang Yao
Published: July 2023

Tactile perception has been a hot topic of research in robotics. Robots sense the shape, material, distributed force, slip during contact, and use the multi-modal contact information to control grasping and manipulation. For vision-based tactile sensors, the contact representation and extraction determine the quality of the raw tactile information, and therefore serve a significant role in the robot perception system. This article highlights for the first time the importance of raw representation and extraction in visuotactile perception, and proposes a new multicolor CMP method for enhancing the performance of vision-based tactile sensors. Based on the principle of continuous marker pattern (CMP), the multicolor CMP method is optimized in the pattern and algorithm design. Regarding information representation, we present a new type of marker pattern based on RGB triangles and a preferred layout. In terms of information extraction, we propose a series of extraction strategies with the adaptive growing algorithm (AGA) and the spin-search algorithm (SSA) as the cores. The experiments reveal that the multicolor CMP method achieves improved precision and reliability compared to the former CMP method.
Design, implementation and application of the Marchenko Plane-wave algorithm
Authors: Thorbecke Jan , Almobarak Mohammed , IJsseldijk Johno van , Brackenhoff Joeri , Meles Giovanni , Wapenaar C.P.A.
Published: July 2023

The Marchenko algorithm can eliminate internal multiples in seismic reflection data. To achieve this a set of coupled equations with four unknowns is solved. These coupled equations are separated into a set of two equations with two unknowns by means of a time-window. The two unknown focusing functions can be solved by an iterative or direct method. These focusing functions, when applied to the reflection data, create virtual point-sources inside the medium. Combining individual virtual point-sources into a plane-wave leads to an efficient computation of images without internal multiples. To use the Marchenko algorithm with plane-wave focusing functions, the time-window that separates the unknowns must be adapted. In this paper the design of the plane-wave Marchenko algorithm is explained and illustrated with numerically modeled and measured reflection data. 
Fast Current Regulation and Persistent Current Maintenance of High-Temperature Superconducting Magnets with Contact Power Supply and Flux Pump
Authors: Wu Chenghuai , Wang Wei
Published: July 2023

Due to the properties of high temperature superconducting (HTS) materials, current attenuation is inevitable during the closed-loop operation of HTS magnets. When a contact DC power supply is used to supplement this attenuation, it inevitably creates a huge thermal burden on the cryogenic system. The flux pump is a revolutionary new power source that can charge closed-loop HTS magnet wirelessly. However, for HTS magnets with a large inductance, the flux pump cannot fast adjust the DC current of the magnet, due to its small DC output voltage. Here, we present a method to fast regulate the current in a closed-loop HTS magnet using a contact DC power supply and persistent current switch (PCS). After current regulation, the HTS magnet is operated in the persistent current mode (PCM) with a flux pump. By applying the "four-quadrant" control theory of the flux pump allows, the current in HTS magnet is controlled with  high stability. This study provide a power strategy for the fast current regulation and maintenance of persistent current in the HTS magnet, enabling the industrial applications of flux pumps for HTS magnets with large inductance. 
Enhancement of InGaN Quantum Well Photoluminescence in a Tamm Metal/Porous-DBR micro-Cavity
Authors: Sarua Andrei , Pugh Jon , Harbord Edmund , Cryan Martin
Published: July 2023

Vertical cavity surface emitting lasers (VCSEL) are of great interest for photonic and telecom applications, however challenges in fabrication of efficient VSCEL GaN devices are yet to be resolved. In this work we present a study of micro-photoluminescence (PL) emission from a novel InGaN quantum well (QW) emitting structure with integrated micro-cavity, which can be used for VCSEL applications. The micro-cavity exhibiting Tamm plasmon optical states is formed by porous GaN distributed Bragg reflector (DBR) bottom mirror and top plasmonic silver metal mirror. Results of PL, Fourier imaging spectroscopy and finite-difference time-domain simulations are presented and discussed. An estimated 8.5 times enhancement of QW PL intensity at around 480-500 nm and a red-shift of QW peak emission is attributed to the Tamm plasmon resonance in the cavity at around 514 nm.
Arrigo Serpieri: un economista rurale, moderno ed attuale
Authors: Corrado Giorgio
Published: July 2023

x
Bibliometric Study on Social Capital Articulated with Representative Democracy
Authors: Jimenez Manuel Fernando Cabrera , Rios Yessica Adriana Peña
Published: July 2023

This article deals with the analysis of the scientific review on the articulation between social capital and representative democracy, having as parameters the relationship of the following articulated terms: Social Capital & Democracy in the Scopus & Web of Science databases. The analysis responds to the review of authors, citations, types of product, keywords, country of origin, and area of knowledge, for this purpose, the study focuses on the review of the products generated in the categories of social sciences, arts, and humanities, economics and political science. A descriptive methodology is developed based on the technique of bibliometric analysis, developed from the selection and documentary exploration, as well as recurrence in the citation generated by scientific nodes. As result, it is observed that production prevails in the United States, about the linking of terms, concentrated in social sciences and political science, expressed in the publication of a high percentage of scientific articles, followed by Europe, which observed a discreet production in Latin America. Likewise, a low density in the generation of broad citation networks is evident, which makes visible a relatively atomized scientific context in this field.