A Legal Approach to Prevent Road Accident in Bangladesh: Drawbacks and Recommendations

As a serious man-made epidemic and distressing occurrence in the community is known road accident, which is affected though personally but afterwards harsh impact goes to social and economies field Major concern is road traffic accidents and picture of injuries have now emerged as outrageously or tremendously. The alarming rate of dreadful road traffic accidents may have increased due to certain reasons: lack of political concern, lack of accountability of the principal category of law abiding citizens, incompetent drivers, inadequate punishment etc. In a country with limited resources, like Bangladesh it considered as hinders of all development and caused worst impact on GDP. This study focused on observing the behavior of law abiding pedestrians and drivers; and try to relation under the obligation of Law as the sole identity of citizenship. Also, the road safety situation how developed and some contemporary issues and priorities are briefly discus in this dissertation. Keywords: Safety, Transport, Traffic, Accident, Injure, Problem, Punishment. DOI: 10.7176/JLPG/81-07

Mechanical spectroscopy of interface stress relaxation in magnesium matrix composites

Magnesium matrix composites made of pure (99.98%) magnesium reinforced with long carbon (Mg/C) and stainless steel (Mg/steel) fibers were processed by low pressure infiltration method. Mg/C composites were then oriented from the crystallographic point of view by Bridgman technique and finally three composites were obtained with γ = 0°, 45° and 90° (γ is the angle between the matrix-fiber interface and the normal to the basal plane). The results show that the damping level in the composite for γ = 0° is almost 3 and 7 times higher than that of the composites with γ = 45° and γ = 90°, respectively. From the result analysis it was possible to conclude that the damping originates in the hysteretic motion of dislocations in the magnesium matrix. As such a mechanism is not thermally activated, high damping is observed over a broad frequency range. The complete evolution of the mechanical loss as a function of the vibration amplitude has been measured. The obtained result has been found to be in excellent agreement with the Granato-Lücke model for dislocation breakaway. The fit of the experimental points with the theoretical curve and the straight Granato-Lücke plot confirm that the microstructure evolution is controlled by the breakaway of dislocation segments from randomly segregated point defects (hysteretic damping). According to the Granato-Lücke model the critical stress for the breakaway could be estimated. As a consequence of this analysis, the transient damping due to interface thermal stress relaxation has been interpreted by a model based on a solid friction mechanism. It has been shown that the model of Mayencourt and Schaller justifies the whole mechanical loss behavior. The model predicts two fit parameters C1 and C2, which account for the respective evolution of the mobile dislocation density and interfacial strength. An anomalous behavior is observed for the parameter C2 as well upon heating as upon cooling, which is being reflected in the shear modulus evolution. This anomalous behavior is due to a "bonding-debonding" mechanism at the fiber-matrix interface due to the motion of dislocations, which depends on the orientation of the glide plane. Also, at high temperature, the interface is strong, which helps in creep resistance of the composite, and at low temperature, the interface is weak, which is positive for improving toughness by interface crack deflection

Revisiting The Geographical Indication Regime in Bangladesh: Trips Compatibility and Prospective Challenges

In the domain of intellectual property (IP), the Geographical Indication (GI) is deemed to be a sleeping beauty due to its imperial reverberation in consolidating cultural and economic values, particularly in the developing and least developed countries. Bangladesh, being rich in cultural diversities and traditions, has a number of world-famous foodstuffs, handicrafts, agricultural products and cultural heritage that could qualify as geographical indications. In this context, the country introduced a sui generis method of GI protection with the promulgation of the Geographical Indications of Goods (Registration and Protection) Act, 2013, which was also monumental in discharging Bangladesh's obligation under the WTO Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS). The present paper has firstly, chosen to examine the concept of the GI and its legal framework from the IP perspective in order to safeguard both the cultural legacy and genuine producers of geographically exhibiting products of Bangladesh. The key focus of this paper is, however, on the compatibility of TRIPS to Bangladeshi law, particularly inrelation to the aspects of protection and registration of Gls, and to identify the unexplored challenges that the country is supposed to confront as a developing nation. Finally, this article portrays some way-outs to combat potential challenges and help ensure the prospects of Bangladesh in an ever expanding local and global market of GI goods

Automating assessment and evaluation for a bachelor’s degree program

Outcome-based education (OBE) makes learning happen and measures automating assessment and evaluation system. The objective of the study is to assess student’s learning in International Finance course and report OBE and propose strategies for continual quality improvement (CQI). In this study, a widely accepted self-developed spreadsheet used to measure course learning outcomes (CLO) and program learning outcomes (PLO) of international finance in a bachelor’s degree program of fall 2021. The method of sampling technique is purposive and a sample of 27 students have been considered for the analysis. Using direct method on specific parameters (quiz, assignment, presentation, and exams), an overall CLO attainment has been measured and compared with a targeted key performance indicators (KPI) (70% is set). Findings reveal that the first three out of five CLO have met the standard KPI. However, a CQI has been proposed for further improvement of CLO. Also, future works proposed to instrument CQI processes, engage industry experts and external OBE experts from foreign universities. Program self-assessment is mandatory for quality assurance at university and also preparation for accreditation of the program needs self-assessment. Therefore, CLO is mandatory for assessment and evaluation urgently

Quantum Control of Spin Qubits Using Nanomagnets

Single-qubit gates are essential components of a universal quantum computer. Without selective addressing of individual qubits, scalable implementation of quantum algorithms is not possible. When the qubits are discrete points or regions on a lattice, the selective addressing of magnetic spin qubits at the nanoscale remains a challenge due to the difficulty of localizing and confining a classical divergence-free field to a small volume of space. Herein we propose a new technique for addressing spin qubits using voltage-control of nanoscale magnetism, exemplified by the use of voltage control of magnetic anisotropy (VCMA). We show that by tuning the frequency of the nanomagnet's electric field drive to the Larmor frequency of the spins confined to a nanoscale volume, and by modulating the phase of the drive, single-qubit quantum gates with fidelities approaching those for fault-tolerant quantum computing can be implemented. Such single-qubit gate operations have the advantage of remarkable energy efficiency, requiring only tens of femto-Joules per gate operation, and lossless, purely magnetic field control (no E-field over the target volume). Their physical realization is also straightforward using existing foundry manufacturing techniques.Comment: 10 pages, 6 figure

Rooftop gardening to improve food security in Dhaka city: A review of the present practices

In recent years, the trend of growing vegetables on green roofs has gained momentum as a way of promoting agricultural sustainability in Dhaka City. Rooftop gardens become an important part of urban agriculture's recent rejuvenation and offer alternative spaces for urban markets to grow vegetable products. Green roofs create spaces for vegetable crop production, thereby creating opportunities for agricultural incorporation into urban communities. At present, however, vegetable production activities on rooftops are limited due to multiple challenges that need to be addressed before widespread implementation takes place. Rooftop agriculture can improve various ecosystem services, enhance the biodiversity of urban areas and reduce food insecurity. Food production from green roofs will help support and sustain food for urban communities and provide a rare opportunity to grow food efficiently in typically unused spaces. As human populations become more urbanized and urban consumers become more interested in local food for their families, the use of alternative agricultural production systems, such as green roof technologies, will increase in importance. While cultivating food on buildings is a key component of making cities more sustainable and habitable, green roofs are not the total solution for providing cities with food security. They should be viewed more as a supplement to other sources of food production in urban areas

Particle formation and micronization using non-conventional techniques- review

Due to growing concerns regarding health, safety and the environment, non-conventional methods for particle formation and micronization that are either solvent-less or use environmentally acceptable solvents such as carbon dioxide have come into favor. Supercritical CO2 (sc CO2) (T > 31.1 'C, P > 7.3 MPa) has been used in food and pharmaceutical industries to minimize the use of organic solvents, produce new food products, produce environmentally superior food products and to process and micronize (0.1–5mm) pharmaceuticals. Control of particle size increases the dissolution rate of drugs into the body. Techniques that use sc CO2 eliminate inherent drawbacks of conventional methods such as thermal or mechanical degradation of the product, poor control of the particle size and morphology, lack of brittleness of some polymers and low encapsulation efficiency. Severaltechniques have been reported for the particle formation and micronization using supercritical fluids that have been successfully scaled up for commercial use. Supercritical CO2 has also been used to develop applications for medicines, essential oils, vitamins, food grade polymers, catalysts and pigments. This review highlights the process mechanism of supercritical fluid based techniques as well as some applications on particle formation and micronization

Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

Search for narrow resonances in dilepton mass spectra in proton-proton collisions at root s=13 TeV and combination with 8 TeV data

Peer reviewe

Search for light bosons in decays of the 125 GeV Higgs boson in proton-proton collisions at root s=8 TeV

Peer reviewe