Public health financing,environmental quality,and the quality of life in Nigeria

This study explores the relationship between health financing, environmental quality, and the quality of life in Nigeria. The Bayer and Hanck cointegration test affirms cointegration. Findings further reveal that CO₂ emissions have no meaningful impact on life expectancy in the short run. In the long run, urbanization significantly deteriorates the quality of life. Also, public health expenditure has not contributed meaningfully to the quality of life. The study discovers no evidence of a feedback causality, but a one‐way causality flowing from urbanization to CO₂ emissions. Policies that can enhance a sustainable environment and improve the quality of life are discussed.     

Migration decision from Bangladesh: permanent versus temporary

More than 50% of the total migration from Bangladesh occurred from Sylhet, located to northern part of the country since the middle of the last century. This paper provides an empirical distinction between the temporary migrants (Bangladeshi citizens engaged in earning aboard) and the permanent migrants (those who have the dual citizenship) based on their cost conditions, earnings, and utilization of remittances in their country of origin. Temporary migrants’ educational status, per capita income allocation to family members, work experience before migration, source of income and income range are much lower compared with the permanent migrants. But, the dependency ratio, contribution to the family, remittances, risk etc. are higher for the permanent migrants than the temporary migrants. Cost of migration and the migration decision are inversely related. Migration costs determine individual’s decision to migrate permanently or temporarily. Our results suggest that higher migration cost reduces the probability of permanent migration.     

Waste to wealth

We currently live in a world where depletion of resources is beyond control. The call for sustainable development both environmentally and economically is spelt out loud and clear. Hence, the current and future generations must ensure that all resources shall be preserved, fully utilized and well managed. Waste generation has been part and parcel of mankind’s pursuit for development, be it in social or economic activities. Municipal Solid Waste (MSW) is an example of socio-economic activities that entails with waste generation. Generation rates of MSW vary according to the economic and social standing of a country. This in return will also affect the management style of the MSW generated. Generally, the higher income countries generated more waste, recycle more and have the money to employ new technology to treat their waste. As for the lower income countries, the waste generated is more organic in nature, which calls for lesser recycling, whereas disposal is by open dumping. The effects of this naturally would mean that in the lower income countries pollution to the water and air is huge as compare to the more developed countries. However on the other hand, does waste alone generate harmful gasses that pollute the world or does manufacturing, transportation and power production, which is rampant in the more industrialized countries contributing more towards pollution? This subject is argumentative and could be discussed at length. However, the environment cannot wait for the population to debate on the above matter. Action needs to be taken in a world where economic power determines the treatment method. Hence, the idea of recovering all ‘wealth’ in the waste is essential to ensure that even the poorest countries could benefit from all waste management technologies. For this to work, recycling, reuse and recovery of energy is essential in an integrated approach towards waste management. This would also mean that many environmental disasters could be avoided. However, an even more pertinent matter to be advocated is that do we need to generate so much waste or are we generating too much waste? Many technology managers are working towards ‘Zero Waste’ these days but how far away is it?     

Wavelet Analysis of Resultant Velocity Belonging to Genuine and Forged Signatures

This study presents a wavelet analysis of resultant velocity features belonging to genuine and forged groups of signature sample. Signatures of individuals were initially classified based on visual human perceptions of their relative sizes, complexities, and legibilities of the genuine counterparts. Then, the resultant velocity was extracted and modeled through wavelet analysis from each sample. The wavelet signal was decomposed into several layers based on maximum overlap discrete wavelet transform (MODWT). Next, the zero crossing rate features were calculated from all the high wavelet sub‐bands. A total of seven hypotheses were then tested using a two‐way ANOVA testing methodology. Of these, four hypotheses were conducted to test for significance differences between distributions. In addition, three hypotheses were run to provide test for interaction between two factors of signature authentication versus perceived classification. The results demonstrated that both feature distributions belonging to genuine and forged groups of samples cannot be distinguished by themselves. Instead, they were significantly different under the influence of two other inherent factors, namely perceived size and legibility. Such new findings are useful information particularly in providing bases for forensic justifications in establishing the authenticity of handwritten signature specimens.     

Cytochrome b based genetic differentiation of Indian wild pig (Sus scrofa cristatus) and domestic pig (Sus scrofa domestica) and its use in wildlife forensics

The Indian wild pig (Sus scrofa cristatus) is a protected species and listed in the Indian Wildlife (Protection) Act, 1972. The wild pig is often hunted illegally and sold in market as meat warranting punishment under law. To avoid confusion in identification of these two subspecies during wildlife forensic examinations, we describe genetic differentiation of Indian wild and domestic pigs using a molecular technique. Analysis of sequence generated from the partial fragment (421 bp) of mitochondrial DNA (mtDNA) cytochrome b (Cyt b) gene exhibited unambiguous (> 3%) genetic variation between Indian wild and domestic pigs. We observed nine forensically informative nucleotide sequence (FINS) variations between Indian wild and domestic pigs. The overall genetic variation described in this study is helpful in forensic identification of the biological samples of wild and domestic pigs. It also helped in differentiating the Indian wild pig from other wild pig races. This study indicates that domestic pigs in India are not descendent of the Indian wild pig, however; they are closer to the other wild pig races found in Asia and Europe.     

Symmetric and asymmetric nexus between economic freedom and stock market development in Pakistan

Economic Change and Restructuring - This study investigates symmetric and asymmetric association between the economic freedom index and sustainable stock market development (SMD) in Pakistan....