Journal of Science and Technology

1) ASSOCIATION OF CELL PHONE RADIATIONS WITH VARIOUS DISEASE SYMPTOMS AMONG 370 SUBJECTS RESIDING IN PESHAWAR
Author(s):AKRAM SHAH, BUSHRA IKRAM, MOHAMMAD ASHRAF

Abstract :

Abstract: A study to investigate various health hazards due to cell phone radiations was conducted from October, 2007 to February, 2008 among cell phone users residing in Peshawar district. A total of 370 subjects (271 female and 89 male) having age ranging from 16 to 60 years were subjected to in person interviews, and blood samples were taken from 100 most extensive users to examine any deviant effect of radiations on blood cell morphology. Among 370 subjects interviewed, the most commonly occurring symptom was warming of ears (57.03%). The prevalence of headache (29.41%) was highest among females, who kept their cell phones under pillow. Among male subjects, palpitation (53.33%) was reported to be the highest symptom due to keeping their cell phones in front pocket. The symptom felt in frequent episodes among the inspected subjects was palpitation (44.95%) and the symptom felt in infrequent episodes was migraine (72.72%). Change in behavior or irritation during receiving the call was documented in 38.92% of the people interviewed. Elevated level of anger was noticed in 29.46% of the subjects after their exposure to cell phone radiations. Stress/depression (40.45%) due to unknown reasons was found to occur more frequently among male subjects. On the basis of occupation, the businessmen were extensive users having most of the symptoms associated with electromagnetic radiation of cell phone. The data was also analyzed using Chi-square test, where occurrences of the symptoms w
2) ANALYSIS OF DAMAGES CAUSED BY FLOOD-2010 IN DISTRICT PESHAWAR
Author(s):AMIR NAWAZ KHAN, SHAH NAWAZ KHAN, AMJAD ALI,

Abstract :

Abstract: Flood is one of the most serious hazards in the study area. This study was carried out to analyze the adverse effects of flood, 2010 in district Peshawar. To achieve the objectives, data were collected both from primary and secondary sources. Primary data was collected through questionnaire survey, interview and personal observations while secondary data was collected from flood related departments (Irrigation department, Meteorological office, Revenue office and housing department), topographic sheets, research reports and journals. Three sample villages were randomly selected from the flood zone for micro-level analysis. 100 questionnaires were filled from different professionals. Finally, the data was presented in the form of graphs and description analysis. The analysis revealed that there were seven death toll, 350 people injured, 32 livestock losses, one hundred and six houses and 52 shops were completely damaged during flood-2010 in the study area. Furthermore, houses have been constructed from mud and stones, which have little resistance to flood events and therefore at high risk. Great lose has been occurred to agricultural land followed by infrastructure. Root causes of the great losses were unawareness and lack of land use planning. Therefore, it is suggested to minimize the damages and losses in future, community should be aware and trained to respond quickly and positively and there should be proper management and control of the flood prone areas.
3) ENVIRONMENTAL TRIBUNAL: EVALUATING ITS STATUS AND PERFORMANCE IN KHYBER PAKHTUNKHWA
Author(s):ZULFIQAR ALI, BUSHRA KHAN, FAZAL GHANI, ATTA-UR-RAHMAN

Abstract :

Abstract: Pakistan became one of the first countries in the Asia Pacific Region to promulgate the first legal framework on environmental protection in 1983; however, the ground for specific Environmental Tribunals was created with the adoption of PEPA, 1997. This paper is aimed to assess the status, performance and output of Environmental Tribunal in Khyber Pakhtunkhwa (KP), and to determine the extent and nature of environmental contraventions punishable exclusively by an Environmental Tribunal. The findings of the study show that established since 2005 in the KP, the Environmental Tribunal has remained non-functional many times through 2005 to 2011. Till January 2011, out of 491 cases filed before Environmental Tribunal, 400 have been decided with the highest number in 2008, while 91 cases are still pending due to non-functionality of Environmental Tribunal. Analysis also shows that the highest numbers of punishments were awarded to brick-kilns and marble industries for noncompliance with the Act.
4) EFFECT OF LITHIUM SALT ON THE STRUCTURAL AND THERMAL BEHAVIOR OF PMMA/PEO/PVAC BLENDED COMPOSITES
Author(s):MUHAMMAD SALEEM KHAN, UZMA KHALIL, GULFAM NASAR

Abstract :

Abstract: Blending polymers is a technique used to tailor the properties of polymers. Not a notable amount of work is found on ternary blend composite system in the literature. In the present paper, an attempt was made to find a relationship between structures of the polymer blend composites with thermal properties. Various compositions of a blend composite were synthesized with the help of PMMA (Poly methyl methacrylate)/ PEO (Poly ethylene oxide)/ PVAc (Poly vinyl acetate) and lithium perchlorate. Structural and thermal properties of the polymer-Lithium per chlorate blend composites showed an increase in crystallinity and a decrease of thermal stability with increasing salt concentration.
5) BLOOD LEVELS OF SEROTONIN AND TRYPTOPHAN AND THEIR RELATIONSHIP WITH MOOD CHANGES DURING PREGNANCY AND POSTPARTUM PERIOD
Author(s):UMEED ALI KHAN, ABDUL BASHAR, MOHAMMED HELALUDDIN, MOHAMMAD SAEED, AHMAD MURAD ZAINUDDIN

Abstract :

Abstract: The mood changes during pregnancy and postpartum period was recorded in 104 women belonging to various ethnic groups. The study was conducted in a hospital after institutional approval for the consented females. The information were recorded by interview of the study subject using a validated questionnaire. The analysis of questionnaire showed that 23.08% (24) women were clinically depressed during pregnancy and, 22.61 % (23) women after childbirth. However, these 23 women included 8 women who were already depressed prenatally. On exclusion of these 8 cases, the postnatal depression was observed in 14.4%. Thirty (29.76%) women experienced a brief period of “pathological” happiness (joy of motherhood) after childbirth. The levels of serotonin and tryptophan were determined in two groups of subjects identified as who experienced depression during pregnancy and after childbirth. The blood samples (during pregnancy and postpartum period) were analysed for serotonin and tryptophan quantification using a validated HPLC method. The tryptophan level in prenatal depression and postpartum depression was found to be 12.7 ±2.5 and 11.9 ±2.4 ng/ml, respectively and that of the serotonin was 7.4 ±1.8 and 7.7 ±1.7 ng/ml, respectively in the above groups. It was concluded that the blood level of tryptophan and serotonin can guide us in the prevention and control of depression.
6) PILOT STUDY FOR INVESTIGATING THE STATUS OF USED ENGINE OIL, ITS REUSE AND RECYCLING IN PESHAWAR
Author(s):RASHID AHMAD, ABDULLAH KHAN, MOHAMMAD NAFEES

Abstract :

Abstract: This study was conducted in Peshawar city to investigate the present status of used engine oil, its re-use and recycling. For this purpose, questionnaire survey was conducted among vehicle owners, workshops and used engine oil collectors. It was found that most of the auto-workshops were not registered. The mechanics in the workshop were unaware of the negative impacts of used-engine oil. Used-engine oil collectors were also not willing to respond properly. It was, therefore, a hurdle in identification of problems associated with re-use and recycling of used-engine oil. The survey revealed that 61.25% of used engine oil is collected. Only 15.00% of the remaining 37.75 is re-used and 23.75% is directly burn out. Major part of collected oil (23.75%) used to burn in brick kiln. On the average 61.01% vehicles owners used recycled engine oil. Majority of them were rickshaws and motor cycles owners. As the collector, dealer and personnel of recycling plants were not willing to provide re-cycling related information, therefore the concerned drivers were asked about its quality. Private car owners simply complaint about its quality, while rickshaw drivers, preferred recycled engine oil due to its low price. As the business of used engine oil is increasing now a day, it is therefore, recommended to introduce proper monitoring system, register all workshops and recycling plants for effective utilization of used engine oil.
7) A STUDY ON PHYSICO-CHEMICAL PARAMETERS OF DARWAZAI DAM, LACHI, DISTRICT KOHAT, KHYBER PAKHTUNKHWA, PAKISTAN
Author(s):ZAIGHAM HASAN, ABID SUHAIL, MUNEER AHMAD KHAN, ZULFIQAR ALI, SHAHJI GUL

Abstract :

Abstract: This paper illustrates some important pysico-chemical parameters of Darwazai Dam, Lachi, District Kohat, Khyber Pakhtunkhwa, Pakistan to determine its suitability for developing aquaculture in it. Various limnological parameters were studied from March to June 2011. Mean and standard error of different pysico-chemical parameters was recorded as follows; pH 7.60 ± 0.00, temperature 27.38 oC ± 3.14, dissolved oxygen (DO) 7.00 ± 0.00 mg/ L, total dissolved solids (TDS) 679.3 ± 92.31 mg/L, conductivity 1110 ± 165 µs/ cm, hardness 123.5± 25.5 mg/L, calcium 69.0± 13.8 mg/L, chloride 28.43 ± 4.50 mg/L, alkalinity 131.0 ± 5.87 mg/L, nitrate 0.42 ± 0.14 mg/L, bromine 0.42 ± 0.14 mg/L, Iron 0.3 ± 0.02 mg/L, magnesium 59.0 ± 12.9 mg/L and visibility of sacchi disk was 30.75±0.43cm. The study concludes that all parameters studied are in the optimum range, which could support a large diversity of warm water fishes for developing aquaculture activities in the dam.

Volume No. 36

Issue No. 1 & 2

-