Simulated Conflict Based Safety Evaluation Models for Hetergenous Traffic in Controlled Intersections

In this paper, an attempt is made to investigate how traffic conflicts identified from microsimulation models can be correlated with explanatory variables which have been traditionally used in accident prediction models. In developing countries with heterogenous traffic streams, availability of accident data is limited especially since accidents are rare events.  Such traffic streams normally have some unique attributes like absence of lane discipline, presence of non-motorized vehicles. In urban intersections with such slow-moving traffic streams, conflicts are more useful determinants of intersection safety rather than previous records of accidents since geometry of intersection may be changed from the time to time. Simulated conflict-based safety evaluation models were developed for intersections of Dhaka city. The intersections were modeled in VISSIM after suitable calibration, for 8 hours of peak hour traffic. Surrogate Safety Assessment Model (SSAM) was used to identify the corresponding simulated hourly conflicts from the resulting trajectory files. It was found that hourly simulated conflicts had a significant statistical relationship with observed hourly traffic volume entering the intersection from major and minor roads. Increasing volumes of non-motorized traffic was found to contribute to intersection safety

Effects of cyberbullying on college-going girls in Tangail Sadar: Nature, causes, and consequences

Cyberbullying has turned into a vital issue in the recent world. Especially, girls are the main victim of cyberbullying.  This study has focused on the nature, causes, and effects as well as identifying the relationship between spent time on social media and the effects of cyberbullying on college girl students in Tangail Sadar. 153 students between the ages of 16 and 19 served as the study's respondents and a mixed approach was employed. Multistage sampling and purposive sampling methods are used, Survey and interview techniques are used to gather data from the respondents. The study reveals that cyberbullying emerges most commonly from a low mentality towards girls, revenge, for having fun or entertainment, social media activities, clothing of girls, lack of morality, etc. and most of the bullying is related to messaging, sexual harassment, spreading rumors, comments, disclosing private info, sending unwanted images or videos type of cyberbullying; Victims experience bad effects as consequences, especially on their psychology (stress, depression and impact on their academic life). Cyberbullying is a type of bullying that does not need any strong reason to have occurred because the offender stays confidential in the cyber world. Therefore, our government must be conscious of solving this issue

Nature and Extent of Crime Victimization: A Study on Urban Area in Bangladesh

This study has mainly explored the current nature and extent of crime victimization in urban areas in Bangladesh. It was exploratory in nature. The samples were selected randomly using a clustered sampling technique from 14 particular areas and respondents who were selected as victimized person or their household heads in this study. A structured and standardized survey questionnaire were used for data collection techniques and using SPSS statistical tools for analyzing data. The findings of the study are that the total number of the respondents was 3,957, among them most of them are female about 53% within 31% of victimized people. Their age ranging from 20 to 40 years, they have completed the primary and secondary level of education, their income below 20,000 and most of them are married and housewife by their occupation among them 8.5% got repeatedly victimized. As per the study findings, theft constitutes the highest number for victimization, where 79% and other types offences including snatching, sexual harassment, domestic violence and also other property related crime, snatching of things or properties, cheating, forgery, or any kind of fraudulent activity, threatening, and damage to property, rape etc were also be found in urban area. Most importantly, Dhaka north city has a higher victimization rate than the other cities in Bangladesh. In this study, it has found that about 95% of the respondents became victimized while living within their current address and most of the victims shared that the incident took place at the town mostly and the places of occurrence were mostly closed to the residence of the victims. The average distance of the place of occurrences and residences was about 4.6 km, and the nearest police station from the place of occurrence was 3.3 km on an average. The study also showed that most of the crimes have occurred within the mid hour of day time to the first hour of the night time, which starts from noon and ends 9 at night, and it constitutes 50 % of the total crime. Finally, it is also revealed that from January to April and November to December of 2018 were more crime-prone than the other months

Underlying the Causes and Impact of Crime Victimization: A Study of Urban Area in Bangladesh

In Bangladesh, like all other countries of the world Crime victimization has become a frightening, threatening and unsettling experience for many people. This study tries to trace the causes of different kinds of crime victimization and also tries to find out its impact on victims in relation to urban environment. Based on literature relate to victimization and collecting primary data from urban area’s victim, this study will enable researchers to explore the prevalence of crime in urban area and to identify the causes and impact of crime victimization on victims by analysing the demographic status of victim-offender, measuring the causal variables and several cost likely financial, physical etc. The subject of this study was composed of 3957 respondent’s selected from 12th city corporations including Dhaka city followed by probability sampling method for collecting information from the general peoples who have victimized. The study revealed that two-third of the offenders was unknown to the victim. The most common cause of victimization includes self-blaming (lack of awareness or carelessness) remained at the top reason, which constitutes 31 percent of the victim. This victimization has affected victims psychologically, physically and financially including several losses. The perceptions gathered through this study will helps to take important measures and strategies to ensure safe livelihood as well as increase the performance of the law enforcement agencies

Decent Work and Inclusive Economic Growth: Bangladesh Perspective

The study has made an effort to analyze the performance of Bangladesh economy in line with the decent work and inclusive economic growth target of Sustainable Development Goals (SDGs) for the period of 2015 to 2019 and to identify the challenges of achieving decent work for all by 2030. Bangladesh has ranked 109th among the 166 countries and moved seven notches up from 116th of 2019 in the SDGs Index 2020. Analyzing the International Labour Organization (ILO) modeled estimated data on the decent work indicators like labour force participation rate, employment to population ratio, unemployment rate, youth unemployment, informal employment, child labour and employment in agriculture, industry and service sector, the study reveals that the high youth unemployment, informality in the job market, mismatch between demand and supply of skilled labour, less female participation in the labour force, insufficient investment, participation of child and forced labour in hazardous work, etc. are the major hindrance for ensuring decent work for all. Skill development programs, large scale investment, products diversification, good governance, elimination of child and forced labour from hazardous work, etc. may help to create more employment opportunities, decent work environment as well as inclusive and sustainable economic growth in Bangladesh. Keywords: Decent Work, Inclusive Economic Growth, SDGs, Bangladesh. DOI: 10.7176/JESD/11-16-02 Publication date:August 31st 202

Socio-Demographic Factors Associate with Fear of Crime in Bangladesh: A Study in Urban Area

Fear of crime is a concerning issue which led to a whole series of behavioral reactions which negatively affect the quality of life in the society. This study examines the public perceptions of the risks and fear of crime in Bangladesh in relation to urban environment. Drawing upon fear of crime literature and collecting primary data this study will enable researchers to explore the nature of the urban fear of crime in Bangladesh and will find association between socio demographic factor and fear of crime by identifying the possible vulnerable time and place of crime victimization; level of safety at the neighborhood and home and identifying factors affecting victim’s level of fear of crime. The subject of this study was composed of 3957 respondent’s selected from 12th city corporations followed by probability sampling method for collecting information from the general peoples who have victimized and have a fear of crime. The study found that fear of crime is found to be higher with the stranger; people seem to be feared while in the dark time after 6 pm. Many factors affect the fear of crime such as lengthy procedure of criminal justice system, news of crime at their locality, news of crossfire and poor neighborhood physical condition have impact on fear of crime. The perceptions gathered through this study will helps to take important measures and strategies to ensure safe livelihood as well as increase the performance of the law enforcement agencies

Hardwood Tannin: Sources, Utilizations, and Prospects

Tannins are found in widely distributed species of plants, and it protects plant from predators and pests. There are three major groups of tannins, that is, hydrolyzable, complex, and proanthocyanidins. Tannins are being used as a significant element for the tanning of animal hides in the leather production industry from the beginning of tannin industry. Then, these have been used for mineral absorption and protein precipitation purposes since the 1960s. Tannins are used for iron gall ink production and wood-based industry as adhesive and anticorrosive, recovering uranium from seawater and removing mercury and methylmercury from solution. In addition, tannins are considered as bioactive compound in nutrition science, and their possible effects on health are to be identified. This chapter outlines the structural and biological properties of hardwood tannins to indicate the positive utilization of them. It also describes the contemporary information on tannins

Analysis of India-Nepal Border Region Earthquake Wave for Studying the Layering Information of the Crust

Seismic surface wave group velocity dispersion has computed for India-Nepal border region earthquake of magnitude 5.0 occurred on 28 March 2012 of 23:40:14 UTC by graphical method. A model taking subsurface layer parameters is also constructed to compute the group velocity dispersion by modified Haskell matrix method. Group velocity dispersion by graphical method is then interpreted from model parameters. Sensitivity and the statistical errors of the model are studied and presented in this research. Interpreted crustal structure of the India-Nepal region shows that there are four major subsurface layers of thickness 4.0 km, 8.0 km, 11.0 km and 20.0 km