LIVING EXPERIENCE OF INTERNATIONAL STUDENTS DURING COVID-19: A STUDY AT HUZHOU UNIVERSITY, CHINA

The rapid spread of the Covid-19 around the world following the discovery of a new outbreak in December 2019 has completely paralyzed the lives of all people. The main purpose of this study is to observe the experiences and challenges of international students living at Huzhou University during the epidemic. Qualitative methods in a phenomenological manner have been used in the study through which in-depth research has been conducted and data has been collected through semi-structured interviews using purposive sampling. The results of this study showed that, international students have been able to cope with the challenges they have faced such as psychological, academic & social. At the time of the epidemic, they were paralyzed, but over time, they were able to make a living, as well as communicate regularly with peoples close to them. Article visualizations

Tumeur de Frantz: deux nouveaux cas

A travers cet article, nous détaillons les caractéristiques clinico-pathologiques et discutons l'histogenèse de la tumeur de Frantz. Deux patients opérés pour tumeur de Frantz. Ils ont eu un traitement chirurgical seul. L'étude morphologique était couplée à un examen immuno-histochimique (IHC) utilisant les anticorps anti CD10, anti- vimentine, anti-énolase neuronale spécifique (NSE), anti-synaptophysine, anti-chromogranine A et anti-cytokératine. Un immuno-marquage à l'anti-oestrogène et l'anti-progestérone a été réalisé dans un cas. Il s'agissait d'une femme âgée de 45ans et d'un garçon de 12 ans. Les aspects échographiques et scannographiques étaient non spécifiques. Une exérèse chirurgicale complète a été réalisée dans les deux cas. L'analyse histologique évoquait une tumeur de Frantz. Le diagnostic a été retenu après étude immuno-histohimique. L'évolution était favorable sans récidive avec respectivement un recul de 18 et 16 mois. La tumeur de Frantz est une entité rare. Son diagnostic repose sur l'examen anatomopathologique complété par l'étude immuno-histochimique. Son pronostic est excellent après résection chirurgicale.Pan African Medical Journal 2013; 14:

Loom Settings and Fabric Structure: Two Major Influencing Factors of Warp Tension Variation

The Warp tension has a great influence on fabric quality and production. Warp tension is related with various loom settings like backrest position, backrest height, dropper position, dropper height and fabric structure. If backrest roller is moved at backward position keeping the dropper line intact then the required warp tension will be reduced. But if the intact dropper line comes at the middle due to the changing of backrest roller position then the required tension will be high. Tension is also influenced by backrest height like higher backrest height will need high tension and lower backrest height will need low tension. Again, dropper position and dropper height affect the tension at a large scale. When the dropper position (distance from backrest to dropper line) increases then the required tension will also increase. In case of dropper height, when dropper line is lifted then the required tension will be decreased provided that the dropper line is situated about the middle position of warp yarn. However when the dropper line is situated closer to the heald frame then the effect of dropper height will be substituted by the effect of dropper position. On the other hand fabric structure or weave has substantial influence on warp tension. Plain weave require more tension than any other weave

Hand Sign to Bangla Speech: A Deep Learning in Vision based system for Recognizing Hand Sign Digits and Generating Bangla Speech

Recent advancements in the field of computer vision with the help of deep neural networks have led us to explore and develop many existing challenges that were once unattended due to the lack of necessary technologies. Hand Sign/Gesture Recognition is one of the significant areas where the deep neural network is making a substantial impact. In the last few years, a large number of researches has been conducted to recognize hand signs and hand gestures, which we aim to extend to our mother-tongue, Bangla (also known as Bengali). The primary goal of our work is to make an automated tool to aid the people who are unable to speak. We developed a system that automatically detects hand sign based digits and speaks out the result in Bangla language. According to the report of the World Health Organization (WHO), 15% of people in the world live with some kind of disabilities. Among them, individuals with communication impairment such as speech disabilities experience substantial barrier in social interaction. The proposed system can be invaluable to mitigate such a barrier. The core of the system is built with a deep learning model which is based on convolutional neural networks (CNN). The model classifies hand sign based digits with 92% accuracy over validation data which ensures it a highly trustworthy system. Upon classification of the digits, the resulting output is fed to the text to speech engine and the translator unit eventually which generates audio output in Bangla language. A web application to demonstrate our tool is available at http://bit.ly/signdigits2banglaspeech

Calcified multilocular thymic cyst associated with thymoma: a case report

<p>Abstract</p> <p>Introduction</p> <p>There are few case reports of thymoma with a thymic cyst. Such an association renders it difficult for any pathologist to differentiate from other neoplasms, such as a cystic thymoma.</p> <p>Case presentation</p> <p>A 50-year-old Berber woman from Morocco was admitted with a chronic cough of more than 10 years duration. Her medical history and physical examination were normal. Anterior chest radiography demonstrated a calcified opacity in her right anterior mediastinum. A chest-computed tomogram revealed a round cystic tumor, with significant calcification in her right anterior mediastinum. A surgical exploration was performed. The tumor seemed to be a well-encapsulated and totally calcified lesion, arising from the right lobe of her thymus. It was removed by partial resection of her thymus. Through histology, the calcified tumor exhibited some areas of multilocular fibrous-wall cysts. These cysts were partially lined by small cuboidal cells with severe chronic inflammation and an AB thymoma that arose from the wall of the cyst.</p> <p>Conclusion</p> <p>Greater attention should be given to multilocular thymic cysts, to exclude the possibility of neoplasm, especially when the cyst wall is thickened.</p

Melanosis coli

La mélanose colique est une affection bénigne qui découle de l'abus de laxatifs anthraquinoniques. Elle est décrite comme une pigmentation foncée de la muqueuse colique. Elle est souvent liée à la constipation. La mélanose colique est principalement diagnostiquée par l’endoscopie et confirmée par l’histologie. Il est important de reconnaître la mélanose colique qui peut régresser généralement en quelques mois avec l’arrêt des laxatifs. Bien qu'elle soit considérée comme une maladie bénigne, les biopsies endoscopiques doivent être faites sur les zones pigmentées et les zones non pigmentées en raison de la suspicion d'adénome ou de carcinome colorectal associé. A ce propos, nous rapportons tous les cas de mélanose colique colligés au service EFD-Hépato-gastroentérologie à l’hôpital Ibn Sina de Rabat au Maroc. L'évolution était favorable après l'arrêt de l'utilisation de laxatifs chez tous les patients.Melanosis coli is a benign condition that arises from anthraquinone laxative abuse. It is described as a dark pigmentation of colonic mucosa. It is often related with constipation. Melanosis coli is mainly diagnosed by endoscopic and confirmed by histopathology. It is important to recognize the melanosis coli which can be regressed generally in a few months with the discontinuation of laxatives. Although it is seen as a benign disease, colonoscopy biopsies should be taken on the pigmented and not pigmented areas because of the suspicion of associated colorectal adenoma and carcinoma. In this regard we report all cases of melanosis coli enrolled in EFD-hepatogastroenterology unit at ibn sina hospital in Rabat-Morocco. The evolution was favorable after discontinuation of the use of laxative in all patients

A 30-day follow-up study on the prevalence of SARS-COV-2 genetic markers in wastewater from the residence of COVID-19 patient and comparison with clinical positivity

Wastewater based epidemiology (WBE) is an important tool to fight against COVID-19 as it provides insights into the health status of the targeted population from a small single house to a large municipality in a cost-effective, rapid, and non-invasive way. The implementation of wastewater based surveillance (WBS) could reduce the burden on the public health system, management of pandemics, help to make informed decisions, and protect public health. In this study, a house with COVID-19 patients was targeted for monitoring the prevalence of SARS-CoV-2 genetic markers in wastewa-ter samples (WS) with clinical specimens (CS) for a period of 30 days. RT-qPCR technique was employed to target non-structural (ORF1ab) and structural-nucleocapsid (N) protein genes of SARS-CoV-2, according to a validated experimental protocol. Physiological, environmental, and biological parameters were also measured following the American Public Health Association (APHA) standard protocols. SARS-CoV-2 viral shedding in wastewater peaked when the highest number of COVID-19 cases were clinically diagnosed. Throughout the study period, 7450 to 23,000 gene copies/1000 mL were detected, where we identified 47 % (57/120) positive samples from WS and 35 % (128/360) from CS. When the COVID-19 patient number was the lowest (2), the highest CT value (39.4; i.e., lowest copy number) was identified from WS. On the other hand, when the COVID-19 patients were the highest (6), the lowest CT value (25.2 i.e., highest copy numbers) was obtained from WS. An advance signal of increased SARS-CoV-2 viral load from the COVID-19 patient was found in WS earlier than in the CS. Using customized primer sets in a traditional PCR approach, we confirmed that all SARS-CoV-2 variants identified in both CS and WS were Delta variants (B.1.617.2). To our knowledge, this is the first follow-up study to determine a temporal relationship be-tween COVID-19 patients and their discharge of SARS-CoV-2 RNA genetic markers in wastewater from a single house including all family members for clinical sampling from a developing country (Bangladesh), where a proper sewage system is lacking. The salient findings of the study indicate that monitoring the genetic markers of the SARS-CoV-2 virus in wastewater could identify COVID-19 cases, which reduces the burden on the public health system during COVID-19 pandemics.Peer reviewe