194 research outputs found

    Analysis of Hand Segmentation in the Wild

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    A large number of works in egocentric vision have concentrated on action and object recognition. Detection and segmentation of hands in first-person videos, however, has less been explored. For many applications in this domain, it is necessary to accurately segment not only hands of the camera wearer but also the hands of others with whom he is interacting. Here, we take an in-depth look at the hand segmentation problem. In the quest for robust hand segmentation methods, we evaluated the performance of the state of the art semantic segmentation methods, off the shelf and fine-tuned, on existing datasets. We fine-tune RefineNet, a leading semantic segmentation method, for hand segmentation and find that it does much better than the best contenders. Existing hand segmentation datasets are collected in the laboratory settings. To overcome this limitation, we contribute by collecting two new datasets: a) EgoYouTubeHands including egocentric videos containing hands in the wild, and b) HandOverFace to analyze the performance of our models in presence of similar appearance occlusions. We further explore whether conditional random fields can help refine generated hand segmentations. To demonstrate the benefit of accurate hand maps, we train a CNN for hand-based activity recognition and achieve higher accuracy when a CNN was trained using hand maps produced by the fine-tuned RefineNet. Finally, we annotate a subset of the EgoHands dataset for fine-grained action recognition and show that an accuracy of 58.6% can be achieved by just looking at a single hand pose which is much better than the chance level (12.5%).Comment: Accepted at CVPR 201

    IMPACT OF COVID-19 ON ISLAMIC AND CONVENTIONAL STOCKS IN INDONESIA: A WAVELET-BASED STUDY

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    The recent literature shows that COVID-19 has impacted stock markets around the world in many ways. In this paper, we examine the reaction of the Indonesian stock market to COVID-19. We apply the continuous wavelet coherence methodology to daily COVID-19 related deaths and daily conventional and Islamic stock indices inIndonesia. We find that COVID-19 negatively impacts the returns of both indices and enhances their volatility. We find the Islamic stock index to be more volatile as compared to its conventional counterpart during the COVID-19 outbreak

    Comparing various chelation therapies in thalassemia patients

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    Objective: To compare various chelationtherapies used for thalassemia on basis of efficacy.Materials and Methods: The study included 80 patients of thalassemia which were divided in two groups, each comprising of 40 patients. Group 1 was administered orally with deferiprone, whereas, group 2 was injected with deferoxamine.Results: The patients had an average age of of 20.3 ± 4.3 years. Out of 80 patients, 54 (67.5%) were male and 26 (32.5%) were females. The average ferritin was found to be 2645 ± 1260 for all patients, whereas it was 2545 ± 1232 for group 1 and 2822 ± 1235 for group 2. No significant difference was observed for ferritin level in both the groups (p value=0.232). The complications noted for patients included 18.2% IGT, 7.8% DM and 28.7% hypothyroidism for all thalassemia patients.Conclusion: Both therapies showed equal efficiency in control of iron load in thalassemia patients.Key Words: Beta-thalassemia, iron chelators, Deferiprone, Deferoxamin

    Comparison of the effectiveness of zinc supplementation in tablets form with that of the suspension form in the treatment of acute diarrhoea

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    Objective: To compare the effectiveness of zinc supplementation in tablet form with that of the suspension form in the treatment of acute diarrhoea.Methods: A comparative study was carried out at the Liaquat University Hospital, Hyderabad, Pakistan from October 2008 to April 2009, and comprised children aged6-24 months suffering from acute diarrhoea. The patients were divided into two groups on the basis of even and odd numbers. Group A (even numbers) received dispersible zinc tablets, and group B (odd numbers) received zinc suspension. The patients were admitted for 3 days and improvement was checked at the end of 3rd day in terms of decrease in the frequency of stools/day. SPSS 15 was used for data analysis.Results: The 88 patients were divided into two groups of 44(50%) each. Overall, 49(55.7%) patients were male and 39(44.3%) were female. At the end of the 3rd day 51(58%) patients improved, while 37(42%) did not. In the zinc tablet group, improvement was in 32(72%) patients compared to 19(43%) in the zinc suspension group (p \u3c 0.05).diarrhoea.CONCLUSIONS: The results of tablets preparation were clinically significant in reducing the duration and severity of diarrhoea

    Association of obesity and thyroid cancer at a tertiary care hospital in Pakistan

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    Objective: Thyroid cancer (TC) is one of the most common endocrine malignancies with a rapidly increasing worldwide presence. In Pakistan, it is more prevalent in females than males and has an incidence rate of 2.1%. Obesity and excess body mass index (BMI) has been linked to several cancers and is thought to be a risk factor for TC. We aim to investigate the incidence of TC in our population and understand it\u27s correlation with obesity. Subjects: The study was a retrospective case series conducted in the years 2000 to 2014, at the Aga Khan University Hospital (AKUH), Karachi, Pakistan where 156 patients who had been diagnosed and treated for TC were analyzed. Clinicopathological data was collected from medical records of these patients and weight and height were measured, pre-surgery, post-surgery, and at follow up. The BMI was correlated with patient variables for any significant associations. Results: The patient set comprised of 38.5% males and 61.5% females with a mean age of 47.77 (SD ± 14.35). The BMI was significantly associated with age as 72.8% of participants were obese and \u3e45 years old as compared to 27.2% who were under 45 years and obese (p-value0.999). Conclusion: The majority of-of TC patients among the Pakistani population were obese and female. Age was significantly associated with the risk of having a higher BMI. Moreover, differences in BMI pre and post-surgery could not be statistically proven

    Comparative analysis of postpartum IUDC versus interval IUCD insertion: a study conducted in a tertiary care hospital in Karachi, Pakistan

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    Background: To compare the effectiveness of postpartum intrauterine contraceptive device (PPIUCD) with interval IUCD in terms of effectiveness, expulsions, bleeding pain and other complications at Tertiary care Hospital.Methods: Current study was conducted among 224 women, at Gynaecology and Obstetrics of Reproductive Health Services-A (RHS-A) Centre of Jinnah Post Graduate Medical center, Karachi, for a period of Six months. Approval from Ethical committee and informed consent was taken from women and her husband before starting the study. The WHO medical eligibility criteria for contraceptive use (MEC) were followed and IUCD was inserted in 112 women in PPIUCD group and in 112 women in interval IUCD group. These cases were followed at 15 days, 6 weeks and 6 months. Results of PPIUCD group were compared with interval IUCDs group. Data was analyzed by using SPSS version 18.0. Continuous variables like age, parity, hemoglobin level were analyzed as mean±standard deviation. Frequencies and percentages were calculated for infection, expulsion, bleeding per vagina and effectiveness. Chi-square was applied to assess the difference between the categories. p value <0.05 was taken as significant.Results: The two groups were identical in mean ± SD age, parity, residence and baseline hemoglobin level. PPIUCD (Group-A) was more effective i.e., 87.5% as compared to interval IUCD (Group-B) i.e., 83.9%. Pain, PID, bleeding and expulsion of IUCD were more prevalent with interval IUCD (Group-B) than PPIUCD (Group-A) patients. Stratified analysis showed that age, parity & mean baseline hemoglobin were non-significant effect modifiers on the effectiveness among the two groups.Conclusions: Postpartum IUCD use was found to be a safe, simple, inexpensive and reversible procedure with higher chances of retention for a longer period. Additionally, there is decreased risk of complications and lower expulsion rates when compared with interval IUCD

    Pharmaceutical Activity of Medicinal Plant Amaranthus viridis Linn. Due to Its Chemical Constituents: A Review

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    Background: Amaranthus viridis, a herbal plant belonging to the family Amaranthaceae, has gained significant attention in the field of traditional medicine due to its rich chemical composition. This plant is known to contain various bioactive components that contribute to its pharmaceutical value. With its extensive range of chemical compounds, Amaranthus viridis has found applications in therapeutic, pharmaceutics, and cosmetic industries. In this study, we aim to explore the medicinal potential of Amaranthus viridis and investigate its various pharmaceutical activities. Methods: The process of writing this review involved conducting comprehensive electronic research using reputable sources, including international and national article databases, along with books accessed through platforms like Google Scholar, PubMed, IEEE Xplore, ScienceDirect and others. The gathered data is subsequently analyzed, followed by employing synthetic approaches with narrative methods to derive meaningful conclusions and interpretations. Results: Amaranthus viridis displays potent antioxidant and anti-inflammatory properties, attributed to its rich composition of flavonoids, cardiac glycosides, and zinc. Its diverse pharmaceutical activities make it a promising contender for medicinal use, addressing labor pain, skin conditions like eczema and psoriasis, and respiratory issues, while also exhibiting antimicrobial effects against bacteria, fungi, and parasites. It can be accomplished by Extraction with solvent, Phytochemical screening and Isolation and purification. Conclusion: Amaranthus viridis, a herbal plant, shows significant potential in therapeutic, pharmaceutics, and makeup industries. Its bioactive compounds, including flavonoids, cardiac glycosides, and zinc, contribute to its diverse pharmaceutical activities, such as antioxidant, anti-inflammatory, antibacterial, antifungal, antidiabetic, and antihelmintic properties

    PNEUMATOSIS INTESTINALIS - A RARE CLINICAL FINDING REQUIRING MULTIMODALITY TREATMENT

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    This is a case report of Pneumatosis intestinalis (PI), which has traditionally been associated with immediate operative intervention and a high mortality rate. We present a case of ulcerative colitis that developed Pneumatosis intestinalis and was managed at our hospital. A 29 year old male with known history of ulcerative colitis presented with an acute exacerbation. A week into his treatment, PI developed. Emergency total colectomy with end ileostomy was performed. Postoperatively, he remained critically ill and expired during same hospitalization after 45 days.Key words: Pneumatosis intestinalis, Ulcerative Colitis, Adalumima

    Frequency of endometriosis among infertile women and association of clinical signs and symptoms with the laparoscopic staging of endometriosis

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    OBJECTIVE: The study aimed to determine the frequency of endometriosis in women who underwent diagnostic laparoscopy for evaluation of infertility and the association of clinical, ultrasonographic and laparoscopic findings of endometriosis with the laparoscopic stages of the disease.METHOD: It was a retrospective study of women presenting to gynaecologic clinics of the Aga Khan University Hospital from January 1999 to December 2005 with primary complaint of primary or secondary infertility and were diagnosed with endometriosis through laparoscopy. Relevant demographic and clinical information was entered and analyzed in SPSS version 14.0.RESULTS: The frequency of endometriosis in women with primary compliant of infertility was found to be 16.8%. Statistically significant associations was found between staging of the disease and thin built (p=0.007) and restricted uterine mobility on pelvic examination (p=0.035). The patients\u27 ultrasound and laparoscopic examination showed significant association with staging of the disease with the presence of cysts on ultrasound (p-value \u3c 0.0001) and adhesions on laparoscopy (p valu
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