304 research outputs found
QUALITY OF LIFE FOLLOWING CANCER TREATMENT
This cross sectional study was carried out among 301 cancer patients attending Dhaka Medical College Hospital, Bangladesh in the Department of Radiotherapy to observe the quality of life following cancer treatment.A semi structured questionnaire was used to collect the data. The quality of life (QOL) in case of pain, ability to self care,able to play role activity in family & society can take part in family and leisure activities were improved. Whereas in case of loss of household asset the situation was worsen. The best scores improved in the different indicators before & after Radiotherapy such as: pain from 27.77% to 30.15%, ability to self care 75.39% to 84.12%, ability to play role activity in family & society 69.84% to 75.39%, can take part in family and leisure activities 74.60% to 79.36%. The Best scores for Chemotherapy: pain from 23.0% to 30.24% ability to self care from 61.97% to 77.46%, ability to play role activity in family & society 63.38% to 74.64%, can take part in family and leisure activities 63.38% to 69.01% and the Best scores for both Radiotherapy & Chemotherapy were improved in the same way. However, the Best scores deteriorated in case of Radiotherapy were 84.61% to 89.42%, Chemotherapy 70.42 % to 42.25% and for both Radiotherapy & Chemotherapy 84.61% to 89.42% for loss of household asset. The quality of life (QOL) of the respondents improved following treatment but at the same time they lost their household asset. The Best scores for quality of life improved following Radiotherapy, Chemotherapy and combined therapy (Radiotherapy and Chemotherapy) which was significant. With relation to loss of household assets the best scores deteriorated in all the three groups of treatment which was also found significant
Investigation for a suitable screw of a briquetting machine
[Abstract]:
Briquetting is a well-established technology. But its crucial part is the screw wear, which has a great influence on the cost of production. The aim of this study is to look for the suitable parameters of screw, which can make this technology attractive to the people. With this objective, the study of existing Bangladeshi screw and a few newly designed screws has been done. Four different types of new screw have been constructed, the design and idea of which are taken from the experience of the Institute of Energy in Vietnam. The remarkable features of the screw are that it is short in length and the thread is not made as an integral
part of the base of screw. Different types of pitch and height of screw have been used for this stud
Malware Resistant Data Protection in Hyper-connected Networks: A survey
Data protection is the process of securing sensitive information from being
corrupted, compromised, or lost. A hyperconnected network, on the other hand,
is a computer networking trend in which communication occurs over a network.
However, what about malware. Malware is malicious software meant to penetrate
private data, threaten a computer system, or gain unauthorised network access
without the users consent. Due to the increasing applications of computers and
dependency on electronically saved private data, malware attacks on sensitive
information have become a dangerous issue for individuals and organizations
across the world. Hence, malware defense is critical for keeping our computer
systems and data protected. Many recent survey articles have focused on either
malware detection systems or single attacking strategies variously. To the best
of our knowledge, no survey paper demonstrates malware attack patterns and
defense strategies combinedly. Through this survey, this paper aims to address
this issue by merging diverse malicious attack patterns and machine learning
(ML) based detection models for modern and sophisticated malware. In doing so,
we focus on the taxonomy of malware attack patterns based on four fundamental
dimensions the primary goal of the attack, method of attack, targeted exposure
and execution process, and types of malware that perform each attack. Detailed
information on malware analysis approaches is also investigated. In addition,
existing malware detection techniques employing feature extraction and ML
algorithms are discussed extensively. Finally, it discusses research
difficulties and unsolved problems, including future research directions.Comment: 30 pages, 9 figures, 7 tables, no where submitted ye
Irrigation water quality assessment of Betagi Upazila under Barguna district in Bangladesh
Irrigation water quality is important for the successful crop production. The present study aimed to assess the quality of both ground and surface water for use of irrigation purposes at Betagi Upazila under Barguna district in Bangladesh. Forty two water samples were collected from different locations and their important chemical properties including pH, EC, the concentration of PO43-, SO42-, K+, and Na+ were analyzed. Results revealed that the pH of the ground and surface water were ranged from 7.23 to 8. 49 and 6.98 to 7.96, respectively. Electrical conductivity (EC) of the water samples were 590 to 1950 µ Scm-1 and 110 to 380 µ Scm-1 respectively. The PO43- concentration in groundwater was 0.10 to 0.74 mgL-1 and surface water was 0.05 to 0.20 mgL-1. The SO42- concentration of groundwater ranged from 1.29 to 3.10 mgL-1 and surfacewater was 2.11 to 7.28 mgL-1. The K+ ion concentration was 4.55 to 11.38 mgL-1 in groundwater and 6.12 to 22.44 mgL-1 in surface water. The PO43- and SO42- concentration in most of the ground and surface water samples within the “safe” limit for irrigation, whereas the pH, EC, and K+ concentration in both ground and surface water were not in the safe limit. Besides this, Na+ concentration was higher in groundwater than surface water. Based on chemical properties, surface water is more suitable as irrigation water compared to groundwater in the study area
Alcoholic Beverages in Bangladesh-How Much We Know?
Objectives: This study was aimed to determine the names and alcohol content or strength of different alcoholic beverages used in different parts of Bangladesh and also to determine contamination with heavy metals and bacteria in some samples.\ud
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Methods: Eight different types of alcoholic beverages consumed in different parts of Bangladesh were collected and studied in the laboratory of Bangladesh Council of Scientific and Industrial Research (BCSIR). Before sending to the laboratory, samples were stored in a refrigerator at temperature 4-8 degree Celsius. In all samples, strength of ethanol content was studied. Among the samples, Dochuani and Tari was tested for heavy metal, Chubichi and Pochani studied for total viable micro-bacterial contamination.\ud
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Results: In this study one sample was from Khagrachari (Hilly area) not been reported as manufacture site by the Department of narcotics control of Bangladesh before. Out of eight samples, one was of a Brand company (Keru & Co) and others homemade. Highest concentration, 81.56% was observed in Spirit followed by 37.7% in Dochuani and lowest 2.2% in Tari. Insignificant amount of heavy metal detected in Dochuani and Tari. There was no viable micro-bacterial contamination in samples tested.\ud
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Conclusions: Without knowing the strength, people are using different types of homemade alcoholic beverages as such in a risk of health hazards as well as death. A national survey need to be conducted to obtain how many types of alcoholic beverages being manufactured, their strength and true picture of alcohol use so that strategy plan can be developed of its healthy use if needed at all
Establishment of in planta transformation protocol of tomato (Solanum lycopersicum L.) through antiporter gene for improved salinity tolerance
Tomato stands as the world’s third most consumed vegetable, but its production has been suffering due to climate vulnerability, notably for saline sensitivity. Despite its economic importance, developing salinity tolerant tomato has not been prioritized lately. Current study was aimed to establish a simple and efficient Agrobacterium-mediated in planta transformation protocol to transform Na+/H+ antiporter gene into 5 Bangladeshi tomato varieties, namely BARI tomato 2, BARI tomato 3, BINA tomato 2, BINA tomato 3 and Bahar, to improve their salt tolerance, through optimization of crucial transformation factors like optical density, infection time, co-cultivation period etc. Two vectors were constructed by cloning Na+/H+ antiporter gene from Arabidopsis (pK7WG2_AtNHX1_1.6) and Rice (pK7WG2_OsNHX1_1.6) individually to gateway vector pENTR/D-TOPO and electroporated to Agrobacterium while another vector pBI121 was used as control. Non-pricked seeds were found optimum for achieving more than 90% efficiency for GUS expression and germination percentages under conditions of OD600 1.1-1.4 with 30 min of infection time followed by 24 hrs co-cultivation period during transformation using the 3 vectors. Transformed plantlets were screened through resistance to Kanamycin 50 mg/l in germination medium while Cefotaxime 100 mg/l was applied to prevent Agrobacterium overgrowth during co-cultivation. Tolerance of 100 mM NaCl for 14 days has been observed in putative transformants in Leaf Disc Bioassay. No significant morphological changes were observed during the acclimatization of putatively transformed plantlets. This established protocol is novel and can efficiently produce genotype-independent transgenic tomato plants obviating intervening tissue culture. Hence, this study provides scope for climate-resilient crop improvement to ensure nutritional security
Sustainability of E-Learning in the Undergraduate EFL Classrooms
The present study investigated the probable sustainability and effectiveness of e-learning in English language teaching (ELT) to learners in an English as a foreign language (EFL) classroom. Since the beginning of technology, it has always influenced our lives, thinking, and learning areas. One significant model in today's world in education is E-Learning. Today, one aspect of technology that has a considerable impact on our livelihood is English language learning in the EFL context. Data were collected using a Google form questionnaire with 20 close-ended questions with a 5-point Likert scale and analyzed in percentage. Ninety-two undergraduate EFL learners randomly participated in the survey. The quantitative method has been used to analyze the data. The results showed that integrating e-learning is a blessing to language learners though students face some challenges entirely using it. Learners have found educational technology effective in developing their fours language skills, including vocabulary problem-solving skills, performance improvement, etc. The study finally recommended increasing e-learning practices alongside the traditional approach in the EFL context of Bangladesh along with secured and controlled techniques
Social and Islamic entrepreneurships for social justice: A structural framework for social enterprise economics
Entrepreneurship is indispensable for progress of human civilization and effectively exploring and exploiting existing and potential resources for wellbeing of humanity.Modern economics operates basically through two major modes of entrepreneurships : the market/private sector economics relying on commercial entrepreneurships (self-interest centric) and the state/public sector economics relying on state entrepreneurships (public-well-being centric). However, both individually and jointly, have failed to ensure economics fundamental goal of well-being for human societies.In response, social enterprise economics (third sector), which features cooperatives and not-for-profit social enterprises in the name of foundations, trusts/awqāf, social businesses, and similar undertakings, has emerged as a make-up strategy to meet the minimum unmet requirements for social well-being.However, there is a strongly felt belief that the social enterprise economics needs to be broadened and mainstreamed in order to include entirely charitable institutions, predominantly not-for-profit operations, and predominantly for-profit businesses but blended with social justice via provision of social welfare programs like corporate social responsibility, etc., for its
emancipation as a major economic system to be able to play a leading role for ensuring desirable economic growth and development.Islamic entrepreneurship, which is basically a
community-centric mode of business initiative, is closely related to social entrepreneurship. It is an antidote to the problem of intolerable economic and social dualism and a natural
strategy against all forms of capitalist exploitation to control world resources, like, in the past, through European colonialism, and now, through American-led state terrorism. It is the
natural guard against economic inequity, wealth concentration, and social divides.Based on
its potential and using examples from Bangladesh and Malaysia, we contend that the Islamic style social entrepreneurship is intellectually and operationally superior and more efficient for
effectively widening and mainstreaming community-centric social enterprise economics to ensure development with equity and social justice. The paper aims to put forward social enterprise economics (third sector) for dialogue and research in the context of effective functioning of modern economies ensuring community well-being
Assessment of genetic variation in selected germplasm of white jute (Corchorus capsularis L.)
Fifty-one genotypes of white jute from different geographic origins were evaluated to study their genetic variability with 11 morphological characters. Significant variation was observed among the genotypes for all the characters. Multivariate techniques were used to classify 51 genotypes. All the genotypes were grouped into six different clusters. Principal component analysis, principal coordinate analysis and canonical vector analysis gave similar results to that of cluster analysis. The highest inter-genotypic distance (1.84) was found between G15, G50 and the lowest distance between G38 and G26. The highest inter-cluster distance (14.37) was observed between cluster I, IV and the lowest distance (2.46) was between cluster III and V. The highest intra-cluster distance was found in cluster I and lowest in cluster V. Considering genetic parameters, high genotypic coefficient of variation (GCV) was observed in branches per plant. High heritability values with moderate genetic advance in percentage of mean were obtained for leaf width, petiole length, nodes per plant. Regarding the cluster distance, inter-genotypic distance and other agronomic performance, the genotypes G47, G33, G48 from cluster I; G27, G17, G23 from cluster III and G13, G40, G45 from cluster II were considered to be better parents for future use in hybridisation programmes
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