The Predictive Value of Positive Thinking and Attitudes of Secondary School Teachers Towards Education in Al-Madinah Al-Munawwarah

The study aims to identify the predictive value of positive thinking and attitudes of secondary school teachers towards education in Al-Madinah Al-Munawwarah. To achieve the objectives of the study, the survey approach is used to suit its nature of this study, where a questionnaire is designed and distributed to a sample consisting of (360) teachers from Al-Madinah Al-Munawwarah city.The results of the study show that positive thinking for secondary school teachers towards education in Al-Madinah Al-Munawwarah for the study sample, in general, is of a low degree. The results also show that the attitudes of secondary school teachers towards education in Al-Madinah Al-Munawwarah for the study sample, in general, is of a high degree. In the light of the results of the study, the researchers recommend working on holding training courses capable of increasing the contribution of secondary stage teachers in activating positive thinking for secondary school students in Al-Madinah Al-Munawwarah and organizing professional development programs for teachers to be aware of the principles and elements of positive thinking and the methods for their development. Keywords: predictive value, positive thinking, Secondary Schools, attitudes DOI: 10.7176/JEP/11-19-09 Publication date:July 31st 202

Past 140-year environmental record in the northern South China Sea: Evidence from coral skeletal trace metal variations

About 140-year changes in the trace metals in Porites coral samples from two locations in the northern South China Sea were investigated. Results of PCA analyses suggest that near the coast, terrestrial input impacted behavior of trace metals by 28.4%, impact of Sea Surface Temperature (SST) was 19.0%, contribution of war and infrastructure were 14.4% and 15.6% respectively. But for a location in the open sea, contribution of War and SST reached 33.2% and 16.5%, while activities of infrastructure and guano exploration reached 13.2% and 14.7%. While the spatiotemporal change model of Cu, Cd and Pb in seawater of the north area of South China Sea during 1986-1997 were reconstructed. It was found that in the sea area Cu and Cd contaminations were distributed near the coast while areas around Sanya, Hainan had high Pb levels because of the well-developed tourism related activities. (C) 2013 Elsevier Ltd. All rights reserved

تحسين الممارسات البيئية لمصانع الخرسانة في قطاع غزة

The research highlights the environmental practices of concrete factories in Gaza Strip and the activities that harm the environment by these factories. The aim of the research is to define and measure the compatibility of these factories to environment protection aspects. It study any opportunity of developing and improving factories environmental practices in order to limit or minimize the harms on the environment. The research focused on several factors for evaluating concrete factories environmental situation including factory location selection, culture of factory stuff, factory water management, factory solid waste management, factory noise management, dust minimizing in the factory, materials and chemicals saving and storing, and environmental management system in the factory. The study carried out a survey based on a questionnaire to collect the needed data. The population and the study sample were 35 concrete factories in the Gaza Strip. Research results showed a deteriorated situation regarding the environmental protection practices in the Gaza Strip's concrete factories. The research recommended that the current environmental practices of the Gaza Strip's concrete factories should be developed in order to minimize the negative impact of these factories on their staff, factories neighbors, and on the surrounding environment, to ensure better environmental conditions and better use of the available resources

A Comparison of Leachate Treatment between Rhode Island and Kuwait

The main objectives of this article were to present data on the characteristics of landfill leachate of Rhode Island Central landfill and those of Kuwait\u27s Sulaibya landfill site, and to compare different experimental pilot plant studies for the treatment of sanitary landfill leachate, which was generally characterized by high concentration of heavy metals. The data obtained on the chemical analysis of leachate generated from two landfills in Rhode Island and Kuwait, identified variations in leachate quality due to landfill composition. Pilot Plant studies using physical/chemical and biological treatments (i.e., rotating biological contractor) were used to examine the treatment efficiency

دراسات الميكروسكوب الإلكتروني في معرفة نموالبكتريا على جزيئات الكربون النشط في المفاعل البيولوجي

A process known as powdered activated carbon (PAC) treatment was applied to facilitate additional bacterial growth in the treatment of industrial wastewater. Refinery wastewater was fed into a pilot plant reactor at a rate of 4-6 mg/1 at 24°C, pH 7.0 and dissolved oxygen in the range of 5-6 mg/1. The reactor had input from a local municipal wastewater treatment plant, with the addition of 120 mg/1 of PAC to the system. Carbon particles were removed from the reactor at different intervals, fixed, and examined by the scanning electron microscopy. Micrographs illustrated a variety of bioforms on activated carbon surfaces. These multiplied with incubation period, providing evidence of improved mineralization of waste.لقد استهدفت هذه الدراسة استخدام جزيئات الكربون النشط مع الحمأة النشطة في معالجة المياه المستخدمة حيث أن وجود الكربون يساعد على تكاثر ونمو البكتريا عليه، لذا تم الاستفادة منه في معالجة المياه الصناعية السائلة. ‏وخلال فترة الدراسة تم تشغيل الوحدة التجريبية المختبرية وتزويدها بالمياه الصناعية المستعملة بمعدل يتراوح ما بين 4-6 ‏مليجرام لكل لتر تحت درجة حرارة حوالي 24 ‏درجة مئوية، أما الأوس الهيدروجيني يعادل حوالي 7 وحدات، أما كمية الاكسجين الذائب ما بين 5-6 ‏مليجرام لكل لتر . ‏كما تم تزويد المفاعل البيولوجي ببكتريا من محطة تنقية المجاري الصحية لتهيئة البيئة التي تناسب الكائنات الحية الدقيقة للقيام بنشاطاتها لأكسدة المواد العضوية وتنقية المياه. وخلال تشغيل الوحدات التجريبية تم إضافة 120 ‏مليجرام لكل لتر من الكربون النشط وتم الاحتفاظ بكمية التركيز خلال فترة الدراسة. ‏وأثناء التجارب المختبرية تم أخذ عينات من الكربون النشط على فترات زمنية متتالية ومن ثم تم فحصها تحت الميكروسكوب الإلكتروني للتعرف على نوعية الكائنات الحية الدقيقة، وأثبتت التجارب المختبرية من الصور الفوتوغرافية أنه هناك تنوع بيولوجي على سطوح جزيئات الكربون النشط طبقا لفترة الحضانة، والذي ساعد بدوره في التخلص من الشوائب من المياه الصناعية السائلة