2,836 research outputs found
Neurological Manifestations of COVID-19 Patients and Management
No full textSARS-CoV-2 was fi rst observed in Wuhan, China, and quickly spread throughout the world, proclaimed as a pandemic by WHO.Most reported cases have respiratory symptoms, but many cases are seen with neurological signs as initial or related presentations [1].
With the fl ow of time, massive data on various aspects of the disease, such as manifestations, pathology, transmission, prevention, and management strategies, has begun to emerge [2,3]. Myalgia and fatigue, dizziness, headache, anosmia, ageusia, and altered mental status are relatively common in Covid patients with preexisting comorbidities [4]. Also, known risk factors associated with neurological symptoms include advanced age, heart failure, coronary artery disease, hypertension, dyslipidemia, diabetes mellitus, obesity, chronic obstructive pulmonary disease, asthma, chronic renal failure, liver disease, malignancy, smoking, immunosuppression [5]
Genetic Characterization of Clinical Acanthamoeba Isolates Using Gene Loci of Nuclear and Mitochondrial Small Subunit Ribosomal RNA
No full text博士論文本文Full 以下に掲載：The Korean Journal of Parasitology 51(4) pp.401-411 2013. Korean Society for Parasitology and Tropical Medicine. 共著者：Md Moshiur Rahman, Kenji Yagita, Akira Kobayashi, Yosaburo Oikawa, Amjad I.A. Hussein, Takahiro Matsumura and Masaharu Tokor
Genetic Characterization of Clinical Acanthamoeba Isolates Using Gene Loci of Nuclear and Mitochondrial Small Subunit Ribosomal RNA
No full text金沢大学博士（医学）博士論文本文Full 以下に掲載：The Korean Journal of Parasitology 51(4) pp.401-411 2013. Korean Society for Parasitology and Tropical Medicine. 共著者：Md Moshiur Rahman, Kenji Yagita, Akira Kobayashi, Yosaburo Oikawa, Amjad I.A. Hussein, Takahiro Matsumura and Masaharu Tokorodoctoral thesi
Structural hybridization and economical optimization of strengthening systems used for concrete beams / Md. Moshiur Rahman
No full textStrengthening of an existing structure is often necessary to increase its load carrying capacity to meet new strength and serviceability requirements. However, strengthening can lead premature failure and efficient usage of the strengthening materials should be emphasized. Therefore, an efficient strengthening method along with the preparation of relevant design guidelines is urgently required. To address this issue a combination of external bonding reinforcement (EBR) and Near Surface Mounting (NSM) technique was developed and tested in this study. The proposed technique is called the hybrid strengthening method (HSM). In this study, efficient approach of strengthening reinforced concrete beam were also studied along with introduction of HSM. To prevent premature failure the use of end anchorage, shear strengthening and side HSM were employed. In order to make strengthening method efficient, steel bar with cement mortar was also used to replace the fibre reinforced polymer (FRP) and epoxy. Semi-numerical and finite element models were developed and validated with the experimental results to be used in the preparation of design guidelines. To help the designer reduce the strengthening cost further, mathematical design optimization techniques are also presented.
For this study, thirty-three reinforced concrete beams were cast and tested. These were designed to address the objectives described above. The strengthening materials used comprised of steel bars, steel plates and CFRP composites with different dimensions were used for strengthening. The beams were extensively instrumented to monitor loads, deflections, and strains. The beams were subjected to static and fatigue loadings.
Semi-numerical models were formulated to initiate the preparation of the design procedure of the HSM beam. In these models, an analytical approach was made with the help of the genetic algorithm optimization procedure to avoid time-consuming trial and error. In addition, finite element models (FEM) from the ABAQUS package to predict flexural strength and deflection were used to do the parametric study. In the mathematical design optimization method, the strengthening cost was minimized using non-linear programming and genetic algorithms where flexural strength and serviceability requirements were used as the major constraints.
From the experimental results, the HSM beam, in general, gave about 65% higher flexural capacities as compared to the control beam at best. In terms of the efficiency, the HSM beams showed a 36% increase in flexural capacities as compared to the EBR beam. The partial replacement of epoxy adhesive with cement mortar in NSM strengthening reduced costs without significantly affecting the flexure performance. The fatigue performance of the HSM strengthened beam was found to be at least 6.5% higher than that of the NSM strengthened beam. The semi-numerical and finite element models were shown to be able to give consistent results as compared to the experimental results. The application of the optimization method led to savings of up to 8% in the amount of strengthening materials used as compared to classical design solutions
Supplemental Material, sj-docx-1-vrd-10.1177_24741264211028519 - Board Certification Is Associated With a Reduced Risk of Endophthalmitis After Intravitreal Injections
No full textSupplemental Material, sj-docx-1-vrd-10.1177_24741264211028519 for Board Certification Is Associated With a Reduced Risk of Endophthalmitis After Intravitreal Injections by Geoffrey G. Emerson, Moshiur M. Rahman, Diana H. Kim, Joshua D. Stein and Brian L. VanderBeek in Journal of VitreoRetinal Diseases</p
Supplemental Material, sj-docx-2-vrd-10.1177_24741264211028519 - Board Certification Is Associated With a Reduced Risk of Endophthalmitis After Intravitreal Injections
No full textSupplemental Material, sj-docx-2-vrd-10.1177_24741264211028519 for Board Certification Is Associated With a Reduced Risk of Endophthalmitis After Intravitreal Injections by Geoffrey G. Emerson, Moshiur M. Rahman, Diana H. Kim, Joshua D. Stein and Brian L. VanderBeek in Journal of VitreoRetinal Diseases</p
Sperm as moderators of environmentally induced paternal effects in a livebearing fish
No full textUntil recently, paternal effects—the influence of fathers on their offspring due to environmental factors rather than genes—were largely discarded or assumed to be confined to species exhibiting paternal care. It is now recognized that paternal effects can be transmitted through the ejaculate, but unambiguous evidence for them is scarce, because it is difficult to isolate effects operating via changes to the ejaculate from maternal effects driven by female mate assessment. Here, we use artificial insemination to disentangle mate assessment from fertilization in guppies, and show that paternal effects can be transmitted to offspring exclusively via ejaculates. We show that males fed reduced diets produce poor-quality sperm and that offspring sired by such males (via artificial insemination) exhibit reduced body size at birth. These findings may have important implications for the many mating systems in which environmentally induced changes in ejaculate quality have been reported.</jats:p
dataset Rahman et al FA paper
No full text<p>dataset for Rahman et al. PloSOne 2014 (The expression of pre- and postcopulatory sexually selected traits reflects levels of dietary stress in guppies)</p
Compliance of microcredit authority rules, 2010: a study on selected NGOs
No full textThis dissertation is submitted in partial fulfillment of the requirements for the degree of Masters of Arts in Governance and Development, 2013.Cataloged from PDF version of thesis.Includes bibliographical references (page 32 - 34).In view of the latest controversial activities of NGOs like Grameen Bank, the purpose of the study is to determine the level of compliance in Microcredit Authority Rules, 2010 in five microfinance institutions and to identify the barriers in complying those.
The study is conducted following the multiple-case study research method with interpretive epistemology (Yin, 2003). Data has been collected mainly using semi-structured interviews, participant observations and document review from five microcredit organizations (ranging from small to medium) in Bangladesh.
The findings confirm that Microfinance Institution have a high level of compliance with the Microcredit Authority Rules, 2010. Higher compliance was observed in the area of management and organogram, maintenance of accounts, rights of the clients, deposit and duration rules. But moderate compliance was remarked in case of service charges on loan particularly allowing a rational rate of rebate for prepayment of the entire outstanding loan.Mohammad Moshiur RahmanM. Governance and Developmen
The expression of pre- and postcopulatory sexually selected traits reflects levels of dietary stress in guppies.
No full textEnvironmental and ecological conditions can shape the evolution of life history traits in many animals. Among such factors, food or nutrition availability can play an important evolutionary role in moderating an animal's life history traits, particularly sexually selected traits. Here, we test whether diet quantity and/or composition in the form of omega-3 long chain polyunsaturated fatty acids (here termed 'n3LC') influence the expression of pre- and postcopulatory traits in the guppy (Poecilia reticulata), a livebearing poeciliid fish. We assigned males haphazardly to one of two experimental diets supplemented with n3LC, and each of these diet treatments was further divided into two diet 'quantity' treatments. Our experimental design therefore explored the main and interacting effects of two factors (n3LC content and diet quantity) on the expression of precopulatory (sexual behaviour and sexual ornamentation, including the size, number and spectral properties of colour spots) and postcopulatory (the velocity, viability, number and length of sperm) sexually selected traits. Our study revealed that diet quantity had significant effects on most of the pre- and postcopulatory traits, while n3LC manipulation had a significant effect on sperm traits and in particular on sperm viability. Our analyses also revealed interacting effects of diet quantity and n3LC levels on courtship displays, and the area of orange and iridescent colour spots in the males' colour patterns. We also confirmed that our dietary manipulations of n3LC resulted in the differential uptake of n3LC in body and testes tissues in the different n3LC groups. This study reveals the effects of diet quantity and n3LC on behavioural, ornamental and ejaculate traits in P. reticulata and underscores the likely role that diet plays in maintaining the high variability in these condition-dependent sexual traits
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