Miracle-dz/UniFAR-FTUs huggingface dataset:
Study on the COSS Dynamic Loss of Superjunction MOSFETs in Quasi-Resonant Flyback Converters

In this article, we study the output capacitance dynamic loss, <inline-formula> <tex-math notation="LaTeX">${E}_{\text {DISS}}$ </tex-math></inline-formula>, of superjunction (SJ) MOSFETs in the quasi-resonant (QR) flyback converter for the first time. A calorimetric method is used to measure <inline-formula> <tex-math notation="LaTeX">${E}_{\text {DISS}}$ </tex-math></inline-formula> of different SJ MOSFETs and numerical simulations are used to explore the electrothermal behavior of <inline-formula> <tex-math notation="LaTeX">${C}_{\text {OSS}}$ </tex-math></inline-formula> in OFF-state SJ MOSFETs. Based on measured results, we find that the <italic>RC</italic> buffer can reduce <inline-formula> <tex-math notation="LaTeX">${E}_{\text {DISS}}$ </tex-math></inline-formula>, and the more advanced the device is, the more effective the <italic>RC</italic> buffer is. Based on simulated results, we find that <inline-formula> <tex-math notation="LaTeX">${E}_{\text {DISS}}$ </tex-math></inline-formula> is mainly caused by the carrier movements in the lightly doped drift region during the charging and discharging processes. Each device has a critical voltage, <inline-formula> <tex-math notation="LaTeX">${V}_{\mathrm {DS\_{}CRL}}$ </tex-math></inline-formula>. If the minimal resonant drain voltage, <inline-formula> <tex-math notation="LaTeX">${V}_{\mathrm {DS\_{}MIN}}$ </tex-math></inline-formula>, is lower than <inline-formula> <tex-math notation="LaTeX">${V}_{\mathrm {DS\_{}CRL}}$ </tex-math></inline-formula>, the neutral islands can be merged and a large current density occurs in the channel, leading to increased <inline-formula> <tex-math notation="LaTeX">${E}_{\mathrm {DISS}}$ </tex-math></inline-formula>. If <inline-formula> <tex-math notation="LaTeX">${V}_{\mathrm {DS\_{}MIN}}$ </tex-math></inline-formula> is higher than <inline-formula> <tex-math notation="LaTeX">${V}_{\mathrm {DS\_{}CRL}}$ </tex-math></inline-formula>, <inline-formula> <tex-math notation="LaTeX">${E}_{\mathrm {DISS}}$ </tex-math></inline-formula> is small or even negligible. The more advanced the device, the smaller the cell-pitch, the lower <inline-formula> <tex-math notation="LaTeX">${V}_{\mathrm {DS\_{}CRL}}$ </tex-math></inline-formula>, and the larger <inline-formula> <tex-math notation="LaTeX">${E}_{\mathrm {DISS}}$ </tex-math></inline-formula>.
Knowledge, Attitude, Perception, And Awareness Regarding Benign Prostatic Hyperplasia And Prostate Cancer Among Men Older Than 40 Years - An Online Cross Sectional Study

Aim: The purpose of this study is to assess the knowledge, attitude, perception and to create awareness regarding Benign prostatic hyperplasia and prostate cancer among men older than 40 years. Objectives: To determine the perception and understanding regarding benign prostatic hyperplasia and prostate cancer among men older than 40 years of age. To provide information regarding benign prostatic hyperplasia and prostate cancer. Study design: This study is design as a online cross sectional study. Study Duration: The study will be carried from the month of August (2021) to April (2022) – 9 months. Study Instruments: The study instrument is developed and carried out with the use of self-developed questionnaire after a thorough literature analysis which will be assessed and validated by Physicians. Statistical Analysis: Microsoft sheet and SPSS software version 24 will be used for statistical analysis of the data. Descriptive analysis of quantitative variables will be done by using mean, standard deviation, and Chi-square test. Conclusion: The results of this study suggest that the men population in Chennai lack knowledge regarding prostate disease. This study recommends widespread public health campaigns using the mass media, hospitals, and religious centres to improve knowledge, attitude and screening practices regarding prostatic diseases.
High-Density NVMe SSD With DRAM-Less eRAID Architecture

Embedded redundant array of independent drives (eRAID) architecture was proposed for a high-capacity solid-state drive (SSD) controller, which applies an embedded redundant array of independent drives (RAID) engine to drive and manage an array of independent embedded multimedia card (eMMC) modules. However, the performance of its random access was limited by the eMMC’s uncontrollable timing during data stripping among the eMMC channels. This brief solves this issue using the nonvolatile memory express (NVMe) engine embedded in the controller and a reorganized buffer stripping mechanism. An SSD controller with peripheral component interconnect express (PCIe) Gen $3^{\ast} 4$ Lane interface was designed to verify the capacity and performance, and it was manufactured into a silicon integrated circuit (IC) using a 55-nm semiconductor process. This architecture provides a prospective way to eliminate external dynamic random access memory (DRAM) buffers while maintaining a high random access speed.
Classroom Implementation of HIV / AIDS Education in Selected Second Cycle Primary Schools of SNNPRG: The Case of Hawassa City Adminstration and Sidama Zone

The purpose of this study was to evaluate the classroom implementation of HIV/AIDS topics in selected primary schools of SNNPRG specifically in Sidama Zone and Hawassa City Administration. To serve the purpose of the study Teachers, School directors and Examination papers were uses as a source of data. From the total second cycle schools which are available in the study area, ten of them were selected randomly, and all the teachers of Basic integrated science, Biology, Health and Physical Education were taken as sample of the study, also all the school directors were taken as a source of data for the study. To collect data, Questionnaire, interview, content analysis, and observation check lists were used. The collected data were analyzed by using Mean, percentage, and Chi-square analysis techniques. From the analysis made, the following major findings were obtained: teachers didn't take training on HIV/AIDS topics, teachers were interested to teach the HIV/AIPS topics but they were not comfortable to teach the topics in the classrooms, teachers have knowledge on many of the active teaching methods which are appropriate to teach HIV/AIDS topics but their use of the methods was found to be low, there was lack of text books on Health and Physical Education subject, teachers were not getting support from their school directors, and the HIV/AIDS topics were not sufficiently included in the ex amination of the subjects in which HIV/AIDS topics were infused. Based on the findi ngs , the following recommendations are given: teacher education institutes should give emphasis for provision of training on HIV/AIDS topics and the methods of teaching the topics, text books on Health and Physical Education should be prepared by the Regional Education Bureau, school directors should get adequate and appropriate training before they are assigned for the position.
INFLUENCE OF PRE-SLAUGHTER CAPTURE CHASE DURATION STRESS ON CARCASS AND MEAT QUALITY OF INDIGENOUS CHICKEN REARED UNDER TRADITIONAL SYSTEM IN BENIN.

1. Laboratory of Animal Biotechnology and Meat Technology, Department of Animal Production and Health, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, 01 BP 2009 Cotonou, Republic of Benin. 2. Faculty of Agronomic Sciences, Department of Animal Production, University of Abomey-Calavi, 01 BP 526, Cotonou, Republic of Benin. 3. Department of Animal Production and Health, Polytechnic School of Abomey-Calavi, University of AbomeyCalavi, 01 BP 2009 Cotonou, Republic of Benin. Manuscript Info Abstract . Manuscript History
Classification of Grapevine Leaf Images with Deep Learning Ensemble Models

Grape is a fruit with high nutritional value, and its uses are also very extensive, which can be used for brewing and eating. There are many varieties of grapes, and how to identify grape varieties based on the morphology of their leaves is of great significance for grape reproduction and variety evolution. This article takes the leaves of different grape varieties at maturity as the research object. First, the leaf images are collected and preprocessed, and then five pre-trained deep learning models(VGG19, VIT, Inception ResnetV2, DenseNet201, and ResneXt) are trained and fine-tuning using transfer learning. Finally, two voting ensemble machine learning models combine the predictions from the five models. The highest accuracy of 98.1 % is achieved through the ensemble classifier in which decision is made based on soft voting.
Using Synthetic Data to Estimate Earnings Dynamics: Evidence from the SIPP GSF and SIPP SSB

One of the methods of increased privacy protection is the creation of synthetic data sets. In this paper we consider the differences that emerge between synthetic and non-synthetic data in one of the very few attempts to create a synthetic data file for a major household survey data set, the Survey of Income and Program Participation. The data we use are non-synthetic and synthetic versions of the SIPP linked to administrative earnings histories, known as the SIPP Gold Standard File (GSF) and the SIPP Synthetic Beta (SSB), respectively. We present a set of results on short-run earnings dynamics estimated on both the SSB and the GSF, focusing on earnings volatility – the variance of short-run earnings growth rates – as well as an error components decomposition of inequality into permanent and transitory components. We find that short-run instability – both volatility and the transitory component of earnings inequality – is higher in the SSB than the GSF although the differences are somewhat dependent on modeling choices and the treatment of low earnings. Differences between the two data sets emerge both because cross-sectional inequality is higher in the SSB than in the GSF and because the dynamics of earnings over both shorter and longer periods appear to be different.
A Modeling Method of SiC-MOSFET Short-circuit Failure Based on COMSOL Multiphysics and Simulink Co-simulation

As a typical device of wide-band semiconductor, SiC-MOSFETs have the advantages of high temperature and high voltage tolerance, fast switching speed, and low conduction loss, which have great potential in high power density and high-power applications. Thanks to the advantages, the short-circuits withstand time is much shorter than Si-MOSFET (2-7μs), so the establishment of the SiC-MOSFET short-circuit thermoelectric coupling model is important to improve the device application reliability and short-circuit protection circuit design. However, it is difficult to accurately characterize the junction temperature variation of different types of power devices, especially for the power devices of different processes technology. Since the short-circuit junction temperature of the device changes rapidly, considering the unbalanced thermal conductivity of different heterogeneous structures inside the chip, the accuracy of the short-circuit junction temperature model becomes the key to analyzing the short-circuit failure of power devices. Therefore, this paper proposes a simulation method based on the combination of the Simulink circuit model and the COMSOL Multiphysics device model, which can couple the actual power circuit and power device through the function interface. It realizes the joint simulation of independent SiC-MOSFET device models and different simulation circuits so that the circuit system is approached to the actual power circuit.
A ESCOLA ENXUTA E FLEXÍVEL DO PRECARIADO: CONSIDERAÇÕES ACERCA DA LIOFILIZAÇÃO ADMINISTRATIVA NA REDE PÚBLICA DE ENSINO DO ESTADO DO RIO DE JANEIRO

O texto trata da reforma administrativa na Rede Pública de Ensino do Estado do Rio de Janeiro a partir 2007. Seu objetivo é compreender como a burguesia materializa seu projeto educativo para o conjunto da sociedade. A partir de fontes bibliográficas primárias e secundárias, aponta que a adoção de sistemas gerenciais viabilizou a redução de 465.832 vagas entre 2007 e 2017, na Rede de Ensino investigada. Além de aumentar consideravelmente o controle sobre o trabalho docente e as formas de sua precarização. Neste contexto, a gestão escolar é marcada por parcerias com a iniciativa privada. O texto conclui que a reforma administrativa na Rede Estadual de Ensino do Rio de Janeiro visa a liofilização da escola como o projeto educativo para o precariado em um contexto da recomposição burguesa diante da crise orgânica do capital.
The Promise of Retinoids in the Treatment of Cancer: Neither Burnt Out Nor Fading Away

Simple Summary In the realm of cancer treatment and prevention, the application of retinoids has led to unparalleled successes and humbling disappointments; all-trans retinoic acid (ATRA) has transformed APL (acute promyelocytic leukemia) into an eminently curable disease but has demonstrated little efficacy in acute myeloid leukemia (AML) more broadly. As a cancer prevention strategy, vitamin A supplementation was ineffective and appeared to increase lung cancer incidence, underscoring the complex relationship between retinoic acid signaling and carcinogenesis. This review aims to provide a survey of our current understanding of retinoic acid homeostasis and signaling, to reflect on prior successes and failures to deploy retinoids in the treatment and prevention of cancer, and to explore the unfulfilled potential of retinoids in cancer. New biological insights relating to the regulation of retinoid homeostasis and the discovery of biomarkers of retinoid sensitivity in subsets of non-APL AML have revived enthusiasm for the therapeutic potential of synthetic retinoids, and thus warrant a reacquaintance with retinoid biology. Abstract Since the introduction of all-trans retinoic acid (ATRA), acute promyelocytic leukemia (APL) has become a highly curable malignancy, especially in combination with arsenic trioxide (ATO). ATRA’s success has deepened our understanding of the role of the RARα pathway in normal hematopoiesis and leukemogenesis, and it has influenced a generation of cancer drug development. Retinoids have also demonstrated some efficacy in a handful of other disease entities, including as a maintenance therapy for neuroblastoma and in the treatment of cutaneous T-cell lymphomas; nevertheless, the promise of retinoids as a differentiating therapy in acute myeloid leukemia (AML) more broadly, and as a cancer preventative, have largely gone unfulfilled. Recent research into the mechanisms of ATRA resistance and the biomarkers of RARα pathway dysregulation in AML have reinvigorated efforts to successfully deploy retinoid therapy in a broader subset of myeloid malignancies. Recent studies have demonstrated that the bone marrow environment is highly protected from exogenous ATRA via local homeostasis controlled by stromal cells expressing CYP26, a key enzyme responsible for ATRA inactivation. Synthetic CYP26-resistant retinoids such as tamibarotene bypass this stromal protection and have shown superior anti-leukemic effects. Furthermore, recent super-enhancer (SE) analysis has identified a novel AML subgroup characterized by high expression of RARα through strong SE levels in the gene locus and increased sensitivity to tamibarotene. Combined with a hypomethylating agent, synthetic retinoids have shown synergistic anti-leukemic effects in non-APL AML preclinical models and are now being studied in phase II and III clinical trials.
“If the Pilcomayo River is lost, the Weenhayek people will be lost” – governance of fisheries and indigenous institutional diversity in southern Bolivia

ABSTRACT Understanding institutional diversity is crucial for the recognition of rural communities and their institutional processes as fundamental to their agency and autonomy. Deficiencies hinder the adequate implementation of agricultural projects and the achievement of collective rights. Thus, this article analyses the institutional diversity of the Weenhayek people in southern Bolivia and their governance of fishing on the Pilcomayo River. Weenhayeks have a fishing identity, creating aquatic food systems and a riverine culture. We undertake document analysis (20), participant observation, and interviews (13). Our results reveal that the Weenhayek’s indigenous governance system is not homogeneous throughout their territory. The “fuzziness” of the socio-ecological boundaries shows the fragility of the formal institutional boundaries. This indicates the importance of perspectives that addresses institutions beyond formal schemes, to support sustainable food systems and food sovereignty. GRAPHICAL ABSTRACT
The quasi-dark state and quantum interference in Jaynes-Cummings model with a common bath

Within the capacity of current experiments, we design a composite atom-cavity system with a common bath, in which the decay channels of the atom and the cavity mode interfere with each other. When the direct atom-cavity coupling is absent, the system can be trapped in a quasi-dark state (the coherent superposition of excited states for the atom and the cavity mode) without decay even in the presence of the bath. When the atom directly couples with the cavity, the largest decay rate of the composite system will surpass the sum of the two subsystems while the smallest decay rate may achieve 0. This is manifested in the transmission spectrum, where the vacuum Rabi splitting shows an obvious asymmetric character.
Dual-Band, Aperture-Shared Transmitarray for Vehicular SatCom Applications

This paper proposes a novel design and the experimental characterization of a dual-band, shared aperture transmitarray operating in dual linear polarization at K/Ka-band. It is based on a 1-bit unit-cell realized using five metal layers and demonstrating low transmission loss (< 2 dB). By combining the polarization rotation method and the stacked patch architecture, the proposed shared aperture transmitarray is able to shape the beam independently in both K- and Ka-bands. A $40\times 40$ -element prototype has been optimized by using an ad-hoc numerical tool and fabricated. The experimental results are in excellent agreement with the numerical and full-wave electromagnetic simulations. This flat lens is illuminated by two standard gain horns with a nominal gain of 10 dBi. They are mounted in orthogonal polarization and located at the same distance from the aperture (110 mm). A peak gain of 27.1 and 29.9 dBi has been achieved, respectively, at 18.7 and 28.5 GHz corresponding to an aperture efficiency of 26.1 and 22.3%. The possibility to steer mechanically the radiation pattern has also been experimentally proven. The proposed antenna system is a low-cost and compact solution for future vehicular broadband SatCom applications.
Preoperative CT-Based Skeletal Muscle Mass Depletion and Outcomes after Total Laryngectomy

Simple Summary Sarcopenia is characterized by the loss of skeletal muscle mass and function and is common in head and neck oncology. This retrospective study aimed to quantify preoperative muscle mass and quality using CT-based indices and to assess their impact on postoperative outcomes and survival in patients who underwent total laryngectomy for cancer. Based on pre-established cut-off values, 44% of the patients in this series had preoperative skeletal muscle mass depletion. No association was found between CT-based skeletal muscle mass depletion alone and postoperative outcomes or overall survival after total laryngectomy. Abstract Purpose: To assess the role of preoperative CT-based skeletal muscle mass depletion on postoperative clinical outcomes and survival in patients who underwent total laryngectomy for cancer. Methods: Patients operated on between January 2011 and March 2020 were retrospectively included. Skeletal muscle area and intra- and inter-muscular fat accumulation were measured at the third lumbar vertebral level on preoperative CT scans. Skeletal muscle mass depletion was defined based on pre-established cut-off values. Their association with postoperative morbidity, length of stay (LOS), costs, and survival was assessed. Results: A total of 84 patients were included, of which 37 (44%) had preoperative skeletal muscle mass depletion. The rate of postoperative fistula (23% vs. 35%, p = 0.348), cutaneous cervical dehiscence (17% vs. 11%, p = 0.629), superficial incisional surgical site infections (SSI) (12% vs. 10%, p = 1.000), and unplanned reoperation (38% vs. 37%, p = 1.000) were comparable between the two patient groups. No difference in median LOS was observed (41 vs. 33 days, p = 0.295), nor in treatment costs (119,976 vs. 109,402 CHF, p = 0.585). The median overall survival was comparable between the two groups (3.43 vs. 4.95 years, p = 0.09). Conclusions: Skeletal muscle mass depletion alone had no significant impact on postoperative clinical outcomes or survival.
Fighting Grape Black Rot with Deep Learning: A CNN-LSTM Hybrid Model for Disease Severity Classification

Grape black rot is a devastating disease that affects grape crops globally. Detecting and preventing the disease as early as possible is crucial for minimizing crop loss and increasing yield and quality. In this study, we propose a CNN-LSTM hybrid model for multi-classification of the severity of grape black rot based on six distinct disease degrees. The model obtained an accuracy of 93.06% after being trained on a dataset of 10,000 grape leaf images collected from an Indian vineyard, outperforming all other deep learning (DL) and traditional machine learning models. The capacity of the proposed model to capture both spatial and temporal characteristics of grape leaf images, as well as the application of data augmentation techniques and early halting, contributed to its superior performance. The model can be utilized as an efficient instrument for the early detection and prevention of grape black rot disease, thereby contributing to the enhancement of the yield and quality of grape crops. However, the model’s performance varied depending on the degree of the disease, with reduced classification accuracy for grape leaves with severe black rot degree. To enhance the model’s ability to precisely classify leaves with severe black rot, additional research is required. Overall, the CNN-LSTM hybrid model proposed for multi-classification of grape black rot severity is a promising approach for the early detection and prevention of grape black rot disease, with potential applications to other plant disease detection tasks.
“Caring for Breast Cancer Patients Is a Work That Brings Sorrow”: A Qualitative Interview Study with Nurses in Tanzania

Introduction Breast cancer is increasing in sub-Saharan Africa (SSA), and most women are diagnosed at a late stage. This leads to increased suffering for the patients and challenging care situations for nurses. Limited resources in healthcare, lack of oncology training, and low health literacy in society result in even more demanding situations for nurses. Objective The objective was to explore nurses’ experiences of caring women for with breast cancer in Tanzania. Methods The study employed a descriptive qualitative design. Fifteen nurses, working in oncology units in three major hospitals in Tanzania were interviewed using a semistructured interview guide. The participants had a minimum of 6 months experience of caring for breast cancer patients. Purposive sampling was used. Data were analyzed by qualitative content analysis. Results Two main themes emerged: Challenges in caring for breast cancer patients and Nurses’ psychological distress. The late diagnosis was very challenging for the nurses. Low health literacy regarding breast cancer disease and treatment, patients’ financial difficulties, minimal oncology nursing education, and technology in healthcare systems were also major challenges. The nurses experienced psychological distress, lost hope, and faced ethical dilemmas while providing cancer care. Conclusion The findings of this study conclude that nurses face emotional distress and ethical dilemmas while caring for patients with breast cancer. Late diagnosis, lack of infrastructure and resources, and low health literacy among patients, family, and healthcare providers have a great impact on the stress that the nurses experience.