Sector-wise dividend payment by all listed companies in Dhaka stock exchange : an empirical analysis

Purpose: The purpose of this article is to examine the sectorwise dividend payment of all the listed companies in the Dhaka Stock Exchange (DSE). This paper also indicates the highest and lowest percentage of dividend paid by companies in each sector, as well as illustrates the reason for distributing such amount of dividend. Design/methodology/approach: The empirical analysis was done by using the last fifteen years (i.e., 2004-2018) of dividend payment by all listed firms in DSE. Data was collected from the secondary sources to perform the analysis. On collected data, average dividend amount was calculated for each listed company by adding the percentage of cash and stock dividend paid by those companies. Trend analysis was performed on the average dividend to see which company among all listed companies is distributing a high or low percentage of dividend to their shareholders' over the years. Findings: The results from this article show that companies in the declining industry fail to meet their shareholders’ expectations in terms of dividend payment. On the other hand, companies in booming industries are consistently disbursing dividend for their shareholders’. Besides, companies are in the growth stage, and the multinational companies are distributing a considerable percentage of dividend. Practical implications: The results of this article will be helpful for the fund managers’, investment analysts’ and investors’ who makes decisions to invest in the capital market because the paper presented the historical average dividend payment by listed companies. Originality/value: This article presents the average dividend payment by companies listed in stock exchange in an emerging economy, also finds out sector-wise dividend payment and suggests some remedial for companies.peer-reviewe

Wireless Health Monitoring using Passive WiFi Sensing

This paper presents a two-dimensional phase extraction system using passive WiFi sensing to monitor three basic elderly care activities including breathing rate, essential tremor and falls. Specifically, a WiFi signal is acquired through two channels where the first channel is the reference one, whereas the other signal is acquired by a passive receiver after reflection from the human target. Using signal processing of cross-ambiguity function, various features in the signal are extracted. The entire implementations are performed using software defined radios having directional antennas. We report the accuracy of our system in different conditions and environments and show that breathing rate can be measured with an accuracy of 87% when there are no obstacles. We also show a 98% accuracy in detecting falls and 93% accuracy in classifying tremor. The results indicate that passive WiFi systems show great promise in replacing typical invasive health devices as standard tools for health care.Comment: 6 pages, 8 figures, conference pape

Waste Management by Waste: Removal of Acid Dyes from Wastewaters of Textile Coloration Using Fish Scales

Removal of hazardous acid dyes by economical process using low-cost bio-sorbents from wool industry wastewaters is of a pressing need, since it causes skin and respiratory diseases and disrupts other environmental components. Fish scales (FS), a by-product of fish industry, a type of solid waste, are usually discarded carelessly resulting in pungent odor and environmental burden. In this research, the FS of black drum (Pogonias cromis) were used for the removal of acid dyes (acid red 1 (AR1), acid blue 45 (AB45) and acid yellow 127 (AY126)) from wool industry wastewaters by absorption process with a view to valorizing fish waste and mutual management of both fish by-product and wastewaters of wool industry. The dye absorption process was investigated considering process variables such as dye concentration, amount of fish scale (FS) used, contact time, FS size, temperature, acid (pH), salt, combination of acid and salt, stirring and vacuum as well as the physicochemical characterization of absorbent was conducted through scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FT-IR) analyses. Microscopic characterization revealed the beautiful architecture of FS with different chemical compositions, TGA revealed that about 50% of scale was mineral and 50% polymer, and finally the evidence of absorption bands of the functional groups for dyes in the colored FS was confirmed by FT-IR analysis. Optimization of process variables represented that maximum dye removal percentages for AR1, AB45, and AY127 were 63.5, 89.3 and 92, and maximum absorptions were 1.8, 2.7 and 3.4mg/g, respectively. The results followed almost the same trend across all three dyes for all process variables. Dyes without any additives (salt and acid) exhibited the best removal performance in terms of percentage of dye removal, whereas the most unusual and inferior outcomes were found in case of fine powdered FS. Two-way analysis of variance (ANOVA) to find the variations in the dye removal percentages among different dyes and process parameters showed that dye types, process parameters and their interactions (dye type X process) had significant effect to the ANOVA model. Over the time, after absorption process the remaining wastewaters formed gelatin probably due to leaching some collagen from the scales. Additional study for characterization of the gel was performed through rheological analysis to find melting point of the gel

A Survey on Antimicrobial Sensitivity Pattern of Different Antibiotics on Clinical Isolates of Escherichia coli Collected from Dhaka City, Bangladesh

A study of antimicrobial sensitivity of Escherichia coli isolated from clinical sources of Medinova Diagnostic Center and Popular Diagnostic Center, Dhaka, Bangladesh was carried out to facilitate the preference of drug in the management of Escherichia coli induced symptoms. Very low sensitivity of E. coli towards ampicillin (4%), aztreonam (4%), cloxacillin (5%), nalidixic acid (5%), ciprofloxacin (7.5%), ceftriaxone (12.5%), doxycycline (12.5%), ceftazidime (16.25%), co-trimoxazole (20%), chloramphenicol (22.51%), tetracycline (25%), and netilmicin (35%) was observed. Higher sensitivity pattern was observed for gentamicin (56%) and only imipenem (95%) has shown sensitivity pattern possibly susceptible enough to consider for the management of E. coli induced cases in the area under study. The low sensitivity to different antimicrobial could be attributed to their prevailing usage and abuse in the area under study

Impaired tumor growth and angiogenesis in mice heterozygous for Vegfr2 (Flk1)

Abstract VEGF signaling through its tyrosine kinase receptor, VEGFR2 (FLK1), is critical for tumor angiogenesis. Previous studies have identified a critical gene dosage effect of VegfA in embryonic development and vessel homeostasis, neovascularization, and tumor growth, and potent inhibitors of VEGFR2 have been used to treat a variety of cancers. Inhibition of FGFR signaling has also been considered as an antiangiogenic approach to treat a variety of cancers. Inhibition of VEGFR2 with neutralizing antibodies or with pharmacological inhibitors of the VEGFR tyrosine kinase domain has at least short-term efficacy with some cancers; however, also affects vessel homeostasis, leading to adverse complications. We investigate gene dosage effects of Vegfr2, Fgfr1, and Fgfr2 in three independent mouse models of tumorigenesis: two-stage skin chemical carcinogenesis, and sub-cutaneous transplantation of B16F0 melanoma and Lewis Lung Carcinoma (LLC). Mice heterozygous for Vegfr2 display profound defects in supporting tumor growth and angiogenesis. Unexpectedly, additional deletion of endothelial Fgfr1 and Fgfr2 in Vegfr2 heterozygous mice shows similar tumor growth and angiogenesis as the Vegfr2 heterozygous mice. Notably, hematopoietic deletion of two alleles of Vegfr2 had minimal impact on tumor growth, with little effect on angiogenesis, reinforcing the importance of endothelial Vegfr2 heterozygosity. These studies reveal previously unrecognized Vegfr2 gene dosage effects in tumor angiogenesis and a lack of synergy between VEGFR2 and endothelial FGFR1/2 signaling during tumor growth

An information explanation of the survival of technical analysis in capital market

In an efficient market, technical analysis cannot earn abnormal returns. Technical strategies are inferior to a buy and hold strategy since they typically churn investor accounts. Nonetheless, technical analysis appears to thrive. The purpose of this paper is to explain why technical analysis survives even though it is inferior to a buy-and-hold strategy. A model is developed that compares four investor groups --informed insiders, buy-and-hold investors, technical traders, and uninformed naive fundamental traders --and are comparedin the model. Surprisingly, it demonstrates the superiority of technical analysis relative to fundamental analysis. The equilibrium requires that different classes of investors earn different rates of return. Informed traders can only earn sufficient returns to cover their costs if there exist traders who, in some sense, are trading on bad information or noise in the Fisher Black sense. The ultimate explanation for the survival of naive investment strategies is that informed traders must have someone with whom to trade. If all uninformed traders are driven out of the market there is no benefit to being informed

An information explanation of the survival of technical analysis in capital market

In an efficient market, technical analysis cannot earn abnormal returns. Technical strategies are inferior to a buy and hold strategy since they typically churn investor accounts. Nonetheless, technical analysis appears to thrive. The purpose of this paper is to explain why technical analysis survives even though it is inferior to a buy-and-hold strategy. A model is developed that compares four investor groups --informed insiders, buy-and-hold investors, technical traders, and uninformed naive fundamental traders --and are comparedin the model. Surprisingly, it demonstrates the superiority of technical analysis relative to fundamental analysis. The equilibrium requires that different classes of investors earn different rates of return. Informed traders can only earn sufficient returns to cover their costs if there exist traders who, in some sense, are trading on bad information or noise in the Fisher Black sense. The ultimate explanation for the survival of naive investment strategies is that informed traders must have someone with whom to trade. If all uninformed traders are driven out of the market there is no benefit to being informed

Declining incidence of esophageal cancer in the Turkmen Plain, eastern part of the Caspian Littoral of Iran: A retrospective cancer surveillance

Background: Previous studies have shown that upper gastrointestinal cancers are the most common cancers in Caspian Littoral, and rate of esophageal cancer (EC) in Iranian Turkmens residing in the Eastern part of littoral are among the highest in the world. Our aim was to reassess the rate 30 years later and following socioeconomic changes in the region. Methods: A comprehensive retrospective search was undertaken to find all new cancer cases during the 1996-2000 period. Diagnosis of cancer was based on histopathological reports in 68.2, clinical and/or radiological evidence in 29.7 and death certificate only (DCO) in 2.1 of the cases. Results: A total of 5143 new cancer cases were registered of whom 3063 (59.6) were males. The median (IQR) age was 60 (44-69) years. Age-standardized rates (ASR) for all cancers in males and females were 134.7 and 104.5 per 100,000, respectively. Based on ASR, the top five common cancers in males (excluding skin cancer) were cancers of esophagus (43.4), stomach (27.8), colorectal (10.7), bladder (7.8) and oral cavity (6.3), while in females cancer of esophagus (36.3) was followed by cancers of breast (15.7), stomach (8.3) colorectal (6.6) and cervix (3.6). Conclusion: We conclude that EC incidence rate has decreased to less than half the rate reported 30 years ago, while the incidence rates of colorectal and breast cancers have increased significantly. © 2006 International Society for Preventive Oncology. Published by Elsevier Ltd. All rights reserved