Owing to the attractiveness of organic phosphonic acids and esters in pharmacological field functionalization conductive metal-oxides, research effective synthetic protocols is pivotal. Among others, ?-bromoalkylphosphonates are gaining particular attention because they useful building blocks for tailored complex molecules. Hence, this work, optimization Michaelis–Arbuzov reaction conditions ha...

Purpose: This study examined the relationship between microcredit and sustainable school improvement in Port Harcourt Metropolis, Nigeria.
 Methodology: The adopted cross-sectional research survey design. Primary data was generated through structured questionnaire. Therefore, population of is 918 schools. A sample Size 279 Proprietors, Administrators Principals determined using Taro Yeman’...

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Using a change management perspective, this paper studies the implementation process of life cycle thinking and sustainable design in practice, based on empirical data from eight firms involved in product development. The data indicate that different firms take different trajectories and approaches towards implementation, which in turn depends on a number of human factors, including participati...

background:environment destroyed and reduce the living place especially in urban place  become an important mater these days ,improving environment need a lot of think together like economic, realigns and environment  changes ,urban tourism is one of the most  important and complicate behavior in town. objective: in researchers look tourism have a large effect on economic, realign and social be...

Background:Environment destroyed and reduce the living place especially in urban place  become an important mater these days ,improving environment need a lot of think together like economic, realigns and environment  changes ,urban tourism is one of the most  important and complicate behavior in town. Objective: In researchers look tourism have a large effect on economic, realign and social be...

Background:Environment destroyed and reduce the living place especially in urban place  become an important mater these days ,improving environment need a lot of think together like economic, realigns and environment  changes ,urban tourism is one of the most  important and complicate behavior in town. Objective: In researchers look tourism have a large effect on economic, realign and social be...

Rice (Oryza sative L.) is the main food crop in Asia and the staple food of the majority of the population in many regions of the world. The population pressure in rice-consuming countries demands that more attention be directed towards new approaches to sustainable rice produc‐ tion. Improvement of both crop quality and yield is an urgent task [1]. Optimally, rice yield improvement must be sou...