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Wireless mesh networks (WMNs) have become a popular solution for expanding internet service and communication in both urban and rural areas. However, the performance of WMNs depends on generating optimized time-division multiple access (TDMA) schedules, which distribute time into a list of slots called superframes. This study proposes novel meta-heuristic algorithms to generate TDMA link schedules in WMNs using two different interference/constraint models: multi-transmit-receive (MTR) and full-duplex (FD). The objectives of this study are to optimize the TDMA frame for packet transmission, satisfy the constraints, and minimize the end-to-end delay. The significant contributions of this study are: (1) proposing effective and efficient heuristic solutions to solve the NP-complete problem of generating optimal TDMA link schedules in WMNs; (2) investigating the new FD interference model to improve the network capacity above the physical layer. To achieve these objectives and contributions, the study uses two popular meta-heuristics, the artificial bee colony (ABC) and/or genetic algorithm (GA), to solve the known NP-complete problems of joint scheduling, power control, and rate control. The results of this study show that the proposed algorithms can generate optimized TDMA link schedules for both MTR and FD models. The joint routing and scheduling approach further minimizes end-to-end delay while maintaining the schedule's minimum length and/or maximum capacity. The proposed solution outperforms the existing solutions in terms of the number of active links, end-to-end delay, and network capacity. The research aims to improve the efficiency and effectiveness of WMNs in most applications that require high throughput and fast response time. [ABSTRACT FROM AUTHOR]

The last few years have witnessed tremendous challenges in the management of operational risks faced by banks and the emergence of newer risks. The working models for bank staff are now different; additionally, there has been a massive increase in the digitization level. All these aspects make operational risk management in banks an attractive field of study. There is a need to perform systematic bibliometric analysis in this research area, providing the various trends and highlighting areas for further research analysis. This research paper has examined the various aspects of operational risk management in Banks by performing a thorough bibliometric analysis of 676 articles extracted from two data databases, i.e., Scopus and Web of Science, from 2010 until March 2023. These were analyzed using the tools Biblioshiny and VOSviewer. Various bibliometric techniques like analysis of trends, citations, contributing authors, keywords, and bibliographic coupling have been performed. This research paper has significant theoretical and practical implications which can assist future researchers. Operational risks are ever-dynamic, and five themes, i.e., climate risk, information security risks, geopolitical risks, third-party risks and compliance risks, have been identified in this research paper as key focus areas for conducting research in the future. The findings of this study and suggestions for future research will be useful to academicians, policymakers, and operational risk management professionals for identifying potential areas of collaboration in the future to strengthen the operational risk management framework. [ABSTRACT FROM AUTHOR]

Byline: Keya. Basu, Moumita. Chatterjee, Abhishek. De, Moumita. Sengupta, Chhanda. Datta, Pradip. Mitra Context: Autoimmune blistering diseases (AIBDs) are characterized by autoantibodies directed against antigens of skin. Direct immunofluorescence (DIF) [...]

Malignant melanoma is a tumor of melanocytic origin. Lymphatic and hematogenous metastases are common in this condition. Retrospective analysis was performed in 16 consecutive cases diagnosed histopathologically as malignant melanoma at the pathology department of a medial college in eastern India. 75% of the patients were male; majority of them was in their sixth decade. All (100%) the lesions were pigmented. The primary site was known in all cases, except two (12.5%). Out of the 14 cases with known primary site 11 (78.57%) were cutaneous melanomas, including one arising in labia minora, two (14.29%) were ocular and one (7.14%) was vaginal in origin. Among cutaneous melanomas, superficial spreading type was the commonest variety and mixed population of epithelioid and spindle cell was the commonest histopathological pattern. The commonest grade of invasion was grade III (Clark′s). The clinical presentation of the case of vaginal melanoma and the two cases of secondary melanomas, including the one with obscure primary tumor, were bewildering and hence are discussed separately.

Fifty female patients, in the age range 3.5 to 45 yrs, suffering from chronic diffuse alopecia were studied for the probable causes. In 26% of cases, iron deficiency anaemia was found to be the major aetiological factor and 20% cases showed hupothyroidism. The cause could not be traced in 40% of cases. In majority of cases, multiple factors might be implicated.

Background: Hirschsprung's disease (HD) is a genetic disorder with a complex pattern of inheritance. Some single-nucleotide polymorphisms (SNPs) are identified to be associated with the risk of Hirschsprung's Disease (HSCR).Aims and Objectives: The aim of this study is to know the association between the rearranged during transfection (RET) proto-oncogene polymorphism and HD and to characterize the SNPs of RET proto-oncogene affecting HD.Materials and Methods: The study was conducted in the Department of Pathology in association with the Department of Pediatric Surgery. Blood samples were collected from the patients diagnosed with confirmed HD and from age- and sex-matched controls. This case-control study consisted of 53 HSCR cases and 50 controls. Genotypes of rs1800860 and rs1800861 were analysed in by polymerase chain reaction amplification and sanger sequencing. Associations with the risk of HSCR were estimated by odds ratio (OR) and their 95% confidence intervals (95% CI) using.Results: We observed that in the case of rs1800860A > G genotype AG was not associated with the increasing risk of disease (OR with 95% CI = 0.568 [0.238-1.356]) while genotype GG was associated with increasing the risk of the disease (OR with 95% CI = 2.278 [0.967-5.366]). In the case of rs1800861G > T genotype GT was associated with lowering the risk of the disease (OR with 95% CI = 0.230 [0.0981-0.539]) while genotype TT was associated with increasing the risk of the disease (OR with 95% CI = 9.647 [3.830-24.302]). The difference in the genotypic distribution of GT and TT at rs1800861G > T between Short segment disease (SSD) cases and Long Segment Disease (LSD) and total colonic aganglionosis was made by Fisher's exact test and it was statistically significant (P = 0.0476 and 0.0054).Conclusion: The results of this study support the hypothesis that variations in RET pathway might play an important role in the development of HSCR. [ABSTRACT FROM AUTHOR]

Byline: Chinmay. Halder, Biswanath. Naskar, Projna. Biswas, Pradip. Mitra Eccrine angiomatous hamartoma (EAH) is a very rare benign neoplastic condition characterized by hamartomatous proliferation of eccrine glands and accompanying blood [...]

A 45 year old female, with lesions of disseminated discoid lupus erythematosus (DLE) for about 10 year duration, developed a solitary lesion of well-differentiated squamous cell carcinoma on the healed scar of a DLE on the right forearm.