Archives-September 2013

We are very happy to announce that from 11th September 2013, Dr.C.Surendra Dilip has joined the team of Elixir Editorial Advisory Board. He will carry a special responsibility for dealing with manuscripts based on Chemistry. Dr.C.Surendra Dilip is currently working as Assistant Professor, Department of Chemistry, Anna University, BIT Campus, Tiruchirappalli. The appointment of Dr.C.Surendra Dilip as member Editorial Advisory Board strengthens the links and will make it easier for prospective authors to establish contact with the journal. Please send any expressions of interest to elixirpublishers@gmail.com. Sincerely Editor-in-Chief

We are very happy to announce that from 17th September 2013, Dr.Haider Kamil Ziadan Al-Saadi has joined the team of Elixir Editorial Advisory Board. He will carry a special responsibility for dealing with manuscripts based on Science. Dr.Haider Kamil Ziadan Al-Saadi is currently working as Dean of College of Science, Biology Department, Babylon University, Babylon, Iraq. The appointment of Dr.Haider Kamil Ziadan Al-Saadi as member Editorial Advisory Board strengthens the links and will make it easier for prospective authors to establish contact with the journal. Please send any expressions of interest to elixirpublishers@gmail.com. Sincerely Editor-in-Chief

Table of contents for the month of September 2013

We are very happy to announce that from 17th September 2013, Mr. Mona Najah Hassan Al-Turiahe has joined the team of Elixir Editorial Advisory Board. He will carry a special responsibility for dealing with manuscripts based on Science. Mr. Mona Najah Hassan Al-Turiahe is currently working as Assistant lecturer in Biology Department, College of Science, Kufa University, Iraq. The appointment of Mr. Mona Najah Hassan Al-Turiahe as member Editorial Advisory Board strengthens the links and will make it easier for prospective authors to establish contact with the journal. Please send any expressions of interest to elixirpublishers@gmail.com. Sincerely Editor-in-Chief

The levels of fatty acids, phospholipids and sterols were determined in the skin and muscle of Alestes macrolepidotus. Results showed crude fat varied from 0.488-5.46 g/100 g; SFA from 16.0-29.5 % of total fatty acids, total unsaturated fatty acids varied from 61.6-80.9 %, PUFA range was 33.1-37.4 % and PUFA/SFA ranged from 1.27-2.07.Skin and muscle had low levels of n-6 fatty acids but high in n-3 fatty acids. Correlation coefficient was significantly and positively high at r = 0.05 in the fatty acids. In the phospholipids, lecithin was highest both inskin and muscle with respective values of 734 and 313 (mg/100 g). The sterol values in the skin varied from81.6-81.7 mg/100 g and muscle was not detected (–) to11.4 (9.89±2.62) mg/100 g. Whilst 100 g skin would provide 3.82 g fatty acids, 100 g muscle would provide 0.342 g fatty acids.

The present study dealt with evaluating the degradation produced to four fabricated polymers after one year of continuous direct exposure to the environmental conditions prevailing at an industrial urban site in, Helwan city, Egypt. The produced damage in the mechanical properties was assessed by evaluating the loss in tensile strength, elongation percent, weight, thickness, drap and stiffness values. Also, the changes in the pH, number of carboxyl end group values and surface morphology of examined samples are studied. The prevailing environmental conditions at exposure site are severe and contribute greatly to the deterioration occurring to the examined fabrics. Also that site is characterized by the presence of many industrial factories as: iron and steel, coal, cement, cars, textiles, metallurgy and some other factories that cause considerable environmental pollution. Nevertheless, summer time especially august was the most effective period and recorded the maximum changes and damage to the examined fabrics.

A series of linear microporous polymers were successfully prepared by conventional nucleophilic substitution reaction of several newly synthesized tetrachloro-monomers with commercially available 5,5’,6,6’-tetrahydroxy-3,3,3’,3’-tetramethylspirobisindane. From the porosity analysis it is clear that the prepared polymers are analogous to polymers of intrinsic microporosity (PIMs) with high surface area (350-800 m2/g). The t-plot analysis shown that the major contribution to the specific surface area is arising from the micropore surface area with narrow size distribution of ultramicropores as confirmed by the Horvath-Kawazoe (H-K) analysis. The hydrogen storage capacity of the prepared PIM-SI-(1-7)s were promising (up to 1.26 wt%, 77 K, at 1.13 bar) with high isoteric heats of H2 adsorption (8.5 kJ/mol). The results of this study demonstrate that we can use cheaper chlorinated monomers (instead of fluoro-monomers ) provide a uniform intrinsic microporous in the target polymers.

Environmental concerns have become an important obsession around the world. Architecture plays an important role on the effects of human built environment to the globe. Passive solar energy helps to alleviate the Heating, Ventilation, and Air Conditioning (HVAC) costs and helps to lower the environmental effects. Central and east parts of Iran, called Central Plateau, have hot dry weather. Its traditional architecture propounded some solutions like using thermal inertia of materials to alleviate the severe weather condition of this area. Now, we have more developed industry and different innovations have enhanced buildings materials. In this research, it has been tried to propose a solution for gathering the benefits of traditional and today architecture n hot arid zone of Iran. The proposed system is based on motility of insulation for optimizing the use of thermal inertia and thermal insulation daily and annually. Using smart buildings saves lots of energies and lets the building to respond to its environmental changes like a living creature.

Social network based-recommendation has some benefits that it approach used for improve of recommendation systems. Recommendation systems are appropriate tools for provide useful and suitable recommendations in social networks. However, in recent years researches has been done on recommender systems on social network, but there is the lack of a comprehensive study on the literature review and classification of these models. We reviewed the related articles and then classified those by the year of publication and their main techniques. The articles are categorized into four techniques, includes tag-based, context-based, social influence-based and trust-based recommendation system on social network. Our research provides information about trends in recommender systems on social network research by examining the publication years of the articles and used techniques, and show future direction on recommender systems on social network.

Death is an inevitable phenomenon that we should accept it as a part of our life. Because everybody will die and we cannot disregard it in our life. One of the most difficult events that may occur for every child or teenager is that one of his/her relatives be died. In order to therapy the consequences of death, it is necessary to acquire different information about its therapy methods such as cognitive-behavioral therapy. This is why that the present study was aimed to examine the effects of cognitive-behavioral therapy methods on decreasing symptoms of depression among students with abnormal grief. The research methodology of this study is a pretest-posttest design with control group. The statistical population of this study includes the students with grief that experienced one of their relatives’ deaths and had symptoms of abnormal depression based on the diagnostic and statistical manual of mental disorders (DSM-IR-IV). The sample members have been selected randomly and then were appointed to experimental and control groups randomly. In order to collect the research data, the questionnaire of child and teenagers’ depression has been used. In order to analyze the data and test the research hypotheses, Covariance analysis has been used in the SPSS. The results revealed that there is a significant difference between control and experimental groups’ depression after intervention (p?0.001). Therefore, it can be concluded that the cognitive-behavioral therapy has a significant effect on decreasing symptoms of depression among students with abnormal grief.