The Design and Implementation of OMA RESTful Location Services in Wireless Sensor Environments

Open Mobile Alliance (OMA) RESTful location services are standard RESTful Web services for terminal location. They are location technology-independent and enable applications’ portability and interoperability. Wireless sensors are electronic devices that can sense context: space, environment and physiology. Location is a key element of space context information. Wireless sensors can sense location with a level of accuracy that most other technologies cannot provide, which has made them the technology of choice for several applications. This thesis is about the design and implementation of OMA RESTful location services in wireless sensor environments for improved accuracy. A novel architecture is proposed. The architectural components and operational procedures are defined and implemented. The proof of concept prototype has been realized, along with the measurements for a preliminary performance evaluation. Several lessons were learned. For instance, it is possible to map location information for each of the OMA services to the sensor-based location information. However, using geographic coordinates (i.e. geographic latitude, longitude and altitude) to describe terminal location does not match with the fine-grained location accuracy provided by WSNs

Development of a Device for Remote Monitoring of Heart Rate and Body Temperature

We present a new integrated, portable device to provide a convenient solution for remote monitoring heart rate at the fingertip and body temperature using Ethernet technology and widely spreading internet. Now a days, heart related disease is rising. Most of the times in these cases, patients may not realize their actual conditions and even it is a common fact that there are no doctors by their side, especially in rural areas, but now a days most of the diseases are curable if detected in time. We have tried to make a system which may give information about one's physical condition and help him or her to detect these deadly but curable diseases. The system gives information of heart rate and body temperature simultaneously acquired on the portable side in real time and transmits results to web. In this system, the condition of heart and body temperature can be monitored from remote places. Eventually, this device provides a low cost, easily accessible human health monitor solution bridging the gaps between patients and doctors

Mechanical and Antibacterial Properties of Polyester/Chitosan/Ag Nanocomposite

This projects development of a new type of lightweight polymer-based nanocomposite material, utilizing polyester resin as the matrix and incorporating Ag nanoparticles and chitosan as filler materials. Polyester based composites products sometimes suffers from mechanical failure, weather adaption and microbial attack. Our findings demonstrate significant advancements in both mechanical and antibacterial properties of these nanocomposites. Chitosan and Silver (Ag) nanoparticles reinforced polyester based nanocomposites were prepared where chitosan were synthesized from shrimp shell and Ag nanoparticles were synthesized by chemical reduction method. Different percentage of (wt%) chitosan were loaded in polyester matrix and 2.5wt% chitosan loading was found to be optimized. In the optimized polyester-chitosan system different percentage (2.5, 5, 7.5) wt% of Ag nanoparticles were dispersed as reinforcement to fabricate polyester/chitosan/Ag nanocomposites. The resultant polyester based nanocomposites were (i) polyester/chitosan/2.5wt% Ag, (ii) polyester/chitosan/5wt% Ag, (iii) polyester/chitosan/7.5wt% Ag which were compared with the blank polyester resin sheet and optimized polyester/chitosan composite for the investigation of mechanical ( tensile strength, young’s modulus, flexural strength, flexural strain and hardness), water absorption and antimicrobial activities. Among the entire composite and nanocomposites the polyester/chitosan/2.5wt%Ag showed the best results in an average with respect to mechanical, water absorption and antimicrobial activities

Morphological and Histological Observation of Embryogenic Calli Derived from Immature Embryo of BRRI Dhan28 (Oryza sativa L.) Variety

Somatic embryogenesis is the most common method for regeneration in rice. In vitrostudies of indica rice (Oryza sativa L.) variety BRRI dhan28 was used for obtainingembryogenic calli from immature embryo culture on Murashige & Skoog mediumsupplemented with 2.5 mg/l dichlorophenoxyacetic acid (2,4-D) and 0.5 mg/lnaphthaleneacetic acid (NAA) showed the highest percentage (91%) of callus induction. Inthis combination 80% embryogenic calli were formed uneven with a crisp texture, loosestructure and salient multicellular structures on the surface while non embryogenic calliwere compact with a smooth surface. Under microscopic observation, embryogenic cells weresmaller, globular and abundant in cytoplasm with one or two big nuclei. Non embryogeniccells were little cytoplasm and few large vacuoles with no or only a small nucleus and wideintercellular spaces. Non embryogenic cells had a very low cell division capability whileembryogenic cells had a high capability for cell division and continued to divide andproduced somatic pro-embryos with a well–defined protodermis which could developfurther through the typical globular, heart, torpedo and cotyledonary stages. Only 80% ofembryogenic cells were induced high differentiation rate and developed 65 globular, 52heart-shape, 43 torpedo and 37 cotyledonary embryos of embryogenic cells after 30 to 45 daysof induction

High time to improve Bangladesh’s earthquake preparedness

Bangladesh must take action to make buildings, roads, and other infrastructure capable enough to withstand an earthquak

Influence of Working from Home Culture on the Effectiveness of Virtual Onboarding of New Employees

The COVID-19 pandemic remains a global disaster with extraordinary consequences for corporations and their people. The stresses of working from home during a pandemic are heightened for newbies entering new occupations and organizations. To address the issues concerning the rapid adoption of virtual onboarding in employment relations and human resource management practices, the paper seeks to determine whether there is a positive relationship between online orientation and training and holistic support with virtual onboarding in the context of multinational companies operating in Bangladesh. A cross-sectional survey of 110 individuals of diverse profiles from various multinational companies (MNCs) in Bangladesh is undertaken using Google Forms. The data was analyzed using SPSS 26.0. It was discovered that online orientation, online training, and holistic support play an important part in carrying out a successful virtual onboarding process for newcomers working from home. It was also found that having a strong relationship with peers, and senior coworkers is a key aspect of obtaining the assistance that new employees require in the workplace as they start. It is expected that the managers in the MNCs may regain workers' trust by strengthening their virtual or onboarding operations as a whole. The frameworks offered can guide managers in better responding to employees' needs. The successful use of virtual onboarding among the MNCs in Bangladesh is a little-explored research domain. The study findings address the gap by highlighting its effectiveness and encouraging the implication of virtual onboarding of the employees working from home in the MNCs. The study does not rule out the potential of other factors influencing virtual onboarding effectiveness, nor focus on any particular professional groups. The online survey makes it difficult to provide information on the sample's representativeness. Further research and inquiry are required to confirm the findings

Why agribusiness potential and mechanisms should be highlighted in our universities

Agribusiness is significant not only for food but also to manage climate change impacts worldwide. In the agriculture industry, the most important elements are the natural environment and temperature

The glass ceiling: career barriers for female employees in the ready made garments (RMG) industry of Bangladesh

The primary objective of the study is to identify the glass ceiling issues and career barriers for female employees to access into the leadership positions in Ready-Made Garments (RMG) organisations in Bangladesh. This exploratory study used semi-structured face-to-face interview methods for data collection. The study conducted only 10 interviews among with 10 main questions concerning the glass ceiling issues and career barriers with the female employees from 5 biggest RMG organisations. After consecutive analysis to all transcripts of the interviews, three ideological approaches such as organisational culture, social culture and lack of career encouragers are identified as the main barriers for females to get into the leadership positions. The study includes discussion on how organisations can facilitate the process of females' advancement into the leadership positions

Appropriateness of Western-Style HRM practices to emerging countries, a case study of Bangladesh

This paper outlines its significance to the both academic and practice arena. The main question, therefore, underpinning this paper and research inform it is: • How appropriate the Western-Style HRM practices to the emerging countries specifically in Bangladesh