Finite Element Simulation ForThermal Analysis In Laser Forming Of D36 Ship Building Steel

The laser bending process is one of the advanced bending processes which can be achieved by elasto-plastic deformation through the local introduction of thermal stresses. It is a thermo-mechanical process in which a laser heat source of suitable power is used for bending the material rather than any external force. In this work, sequential thermal analysis is carried out for SOLID70 element by using ANSYS. The deformation of a sheet, subjected to an irradiation, has been studied through a sequentially coupled thermo-mechanical elasto-plastic simulation by using the finite element model (FEM). D36 shipbuilding steel sheet has been taken as the work-piece material for the analysis. The thermal effects due to heat input into the work piece are analyzed which includes temperature distribution, thermal flux distribution, thermal gradient distribution and variation of thermal properties with time.Keywords: Laser beam forming, Gaussian distribution, FEM

MEDICINAL FORMULATIONS OF A KANDA TRIBAL HEALER – A TRIBE ON THE VERGE OF DISAPPEARANCE IN BANGLADESH

The Kanda tribe is one of the lesser known small tribes of Bangladesh with an estimated population of about 1700 people (according to them), and on the verge of extinction as a separate entity. To some extent, they have assimilated with the surrounding mainstream Bengali-speaking population, but they still maintain their cultural practices including traditional medicinal practices, for which they have their own tribal healers. Nothing at all has been documented thus far about their traditional medicinal practices and formulations, which are on the verge of disappearance. The Kanda tribe can be found only in scattered tea gardens of Sreemangal in Sylhet district of Bangladesh; dispersion of the tribe into small separated communities is also contributing to the fast losing of traditional medicinal practices. The objective of the present study was to conduct an ethnomedicinal survey among the traditional healers of the Kanda tribe (in fact, only one such healer was found after extensive searches). Information was collected from the healer with the help of a semi-structured questionnaire and the guided field-walk method. A total of 24 formulations were obtained from the healer containing 34 plants including two plants, which could not be identified. Besides medicinal plants, the Kanda healer also used the body hairs of the Asiatic black bear (Ursus thibetanus) and bats (Pteropus giganteus giganteus) in one of his formulation for treatment of fever with shivering. The ailments treated by the Kanda healer were fairly common ailments like cuts and wounds, skin diseases, helminthiasis, fever, respiratory problems (coughs, asthma), gastrointestinal disorders (stomach pain, constipation, diarrhea), burning sensations during urination, various types of pain (headache, body ache, toothache, ear ache), conjunctivitis, poisonous snake, insect or reptile bites, jaundice, and bone fractures. A number of important drugs in allopathic medicine like quinine, artemisinin, and morphine (to name only a few) have been discovered from observing indigenous medicinal practices. From that view point, the formulations used by the Kanda healer merit scientific studies for their potential in the discovery of cheap and effective new drugs. Scientific validation of the medicinal formulations of the Kanda healer can also be effective for treatment of ailments among this tribe, which does not have or does not want to have any contact with modern medicine

The role of the Internet in Burma's saffron revolution

The 2007 Saffron Revolution in Burma was in many ways an unprecedented event in the intersection between politics and technology. There is, of course, the obvious: the event marks a rare instance in which a government leveraged control of nationalized ISPs to entirely black out Internet access to prevent images and information about the protests from reaching the outside world. At another level, it is an example of an Internet driven protest which did not lead to tangible political change. On deeper reflection it is also of interest because of the complex interaction between eyewitnesses within the country and a networked public sphere of bloggers, student activists, and governments around the globe. To that end, this case study examines the root causes, progress, and outcomes of the Saffron Revolution and attempts to parse out the extent to which technology may have played a useful or detrimental role in the unfolding of events. The case concludes with some initial hypotheses about the long-term impact of the protests and the role of the Internet in highly authoritarian states

mCARE, a digital health intervention package on pregnancy surveillance and care-seeking reminders from 2018 to 2027 in Bangladesh: a model-based cost-effectiveness analysis

Objective We estimated the cost-effectiveness of a digital health intervention package (mCARE) for community health workers, on pregnancy surveillance and care-seeking reminders compared with the existing paper-based status quo, from 2018 to 2027, in Bangladesh.Interventions The mCARE programme involved digitally enhanced pregnancy surveillance, individually targeted text messages and in-person home-visit to pregnant women for care-seeking reminders for antenatal care, child delivery and postnatal care.Study design We developed a model to project population and service coverage increases with annual geographical expansion (from 1 million to 10 million population over 10 years) of the mCARE programme and the status quo.Major outcomes For this modelling study, we used Lives Saved Tool to estimate the number of deaths and disability-adjusted life years (DALYs) that would be averted by 2027, if the coverage of health interventions was increased in mCARE programme and the status quo, respectively. Economic costs were captured from a societal perspective using an ingredients approach and expressed in 2018 US dollars. Probabilistic sensitivity analysis was undertaken to account for parameter uncertainties.Results We estimated the mCARE programme to avert 3076 deaths by 2027 at an incremental cost of $43 million relative to the status quo, which is translated to$462 per DALY averted. The societal costs were estimated to be $115 million for mCARE programme (48$1152 to $462 per DALY averted from 5 to 10 years.Conclusion Mobile phone-based pregnancy surveillance systems with individually scheduled text messages and home-visit reminder strategies can be highly cost-effective in Bangladesh. The cost-effectiveness may improve as it promotes facility-based child delivery and achieves greater programme cost efficiency with programme scale and sustainability

Depression, anxiety, and performance status among the women with metastatic breast cancer receiving palliative care in Bangladesh: A cross sectional study

Abstract Background and Aims Advanced breast cancer patients suffer from various psychological issues including depression and anxiety. This study aims to explore these psychological issues and their relationship with the performance status. Methods This cross‐sectional study was conducted among 95 patients with metastatic breast cancer attending the Department of Palliative Medicine, Bangabandhu Sheikh Mujib Medical University, Bangladesh from April 2021 to September 2021. Data was collected by face‐to‐face interview using a structured questionnaire along with Hospital Depression and Anxiety Scale. The performance status of the patients was determined by the Eastern Cooperative Oncology Group (ECOG) performance scale. The association between different variables were assessed by χ2 test and Fisher Exact test. Result Mean age of the respondents was 48.9 ± 9.9 years. Most of them were married (94.7%), muslim (92.6%) and homemakers (82.1%). More than half (52.6%) of the patients were evaluated having ECOG performance status grade II. Four out of ten  (44.2%) patients had moderate to severely anxiety, and almost one‐third (36.9%) patients were suffering from moderate to severe depression. The patients with high educational status were found to have less depression. In addition, patients faring better on ECOG performance scale (Grade 0 to I) had significantly (p < 0.05) less depression and anxiety. Conclusion Depression and anxiety are one of the major psychological sufferings among the women with metastatic breast cancers. All women suffering from breast cancer should be routinely screened and assessed for phychological distress and ensure early intervention

Coping strategy among the women with metastatic breast cancer attending a palliative care unit of a tertiary care hospital of Bangladesh.

BackgroundBreast cancer is one of the leading cancers among the Bangladeshi women. Coping helps these patients to adjust with this life-changing disease. Each individual has unique and different coping mechanism. But we know a little regarding their coping strategies. This study aims to explore the different coping strategies adopted by the women with metastatic (stage IV) breast cancer attending the palliative care unit and their relationship with the common mental health issues like anxiety and depression.MethodsThis cross-sectional study was conducted among 95 patients with metastatic (stage IV) breast cancer attending the Department of Palliative Medicine, Bangabandhu Sheikh Mujib Medical University, Bangladesh from April 2021 to September 2021. Data was collected by face-to-face interview using a structured questionnaire adapted from Hospital Depression and Anxiety Scale (HADS), Brief COPE inventory and Eastern Cooperative Oncology Group (ECOG) performance scale. Pearson correlation test was used to find the relationships between various domains of coping strategies and psychological variables. Correlation matrix was done to observe the internal correlation among different coping strategies. Kruskal-Wallis H test was done to find the relationship between different coping strategies and ECOG performance status.ResultThe mean age of the respondents was 48.9 ± 9.9 years. Most of them were married (94.7%), Muslim (92.6%) and homemakers (82.1%). Commonly used coping strategies by the patients were: acceptance (median 10; IQR 10), religion (median 9; IQR 8-10) and instrumental support (median 9; IQR 6-10). Significantly strong positive correlation was found between emotional and instrumental support (R = 0.7; p = 0.01), planning, acceptance and active coping (R = 0.7; p = 0.01); behavioral disengagement, self distraction and denial (R = 0.5; p = 0.01). Significantly fair negative correlation was observed between active coping and depression (R = -0.4, p ConclusionDifferent coping strategies, especially positive coping helps the patients to adapt with their disease over time. All women suffering from breast cancer should be routinely screened and assessed for psychological distress and ensure early intervention and management to promote a better quality of life