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journal-basic-applied-scien

Usage of Social Networks for Academics in Private Universities of Karachi: A Statistical Survey Approach - Pages 626-631


Muhammad Osama Shafiqand Falak Naz
https://doi.org/10.6000/1927-5129.2017.13.101

Published: 21 December 2017

Abstract: A new trend of socializing networks such as Facebook and WhatsApp has emerged among university students for academic purpose. This study aims to analyze the impact and usage of Facebook and WhatsApp for academic activities. A quantitative research method has been used in the study. This survey was conducted at eight major private universities of Karachi, Pakistan. The sample size of the study is three hundred students. The survey reveals an interesting fact that frequent use of Facebook and WhatsApp doesn’t affect studies but it enhances collaborative learning among university students.

Students perceive that Facebook is more helpful for receiving information regarding class activity and lecture than WhatsApp.

Keyword: New Media, Social Media, Collaborative Learning, Facebook, WhatsApp, Social media and learning, Universities, Academics.

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An Empirical Analysis of a Process Industry to Explore the Accident Causation Factors: A Case Study of a Textile Mill in Pakistan - Pages 72-79

Muhammad Ali Bin Manzoor, Salman Hussain, Wasim Ahmad and Mirza Jahanzaib

https://doi.org/10.6000/1927-5129.2018.14.10

Published: 6 April 2018

Abstract: Industrial revolutions not only improved the general lifestyle of individuals but also brought an increase in the diversity of the manufactured goods. This diversification involved use of advanced technology and complex methods that entailed dangerous conditions. According to international labor organization, occupational accidents cause death of more than two million individuals each year in different industries. Process industries are complex in nature and tend to lead to more accidents. In Pakistan among the process industries, textile mills are the most accident prone industries in recent times. Therefore, an empirical analysis of a textile process industry has been done using structural equation modelling to examine the interactions between the contributory factors of accidents. Results revealed that unsafe acts are a major contributor to human error, equipment error and unsafe environment that in turn lead to the calamities and disasters that can be avoided with proper safety measures in place.

Keywords: Empirical analysis, Accident causation, Process industries, Structural equation modelling, Industrial Safety.

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An Overview of the Antibacterial Implications of Lansium domesticum - Pages 206-209

Tabassum Munir, Khurrum Shahzad Munawar and Ayesha Mohyuddin

https://doi.org/10.6000/1927-5129.2018.14.32

Published: 22 June 2018

Abstract: Lansium domesticum belongs to the family Meliaceae and is admired for its fruit in southern Asia. The family Meliaceae is known as novel bioactive compounds that are usually used in folk remedy as a drug for the treatment of diarrhea. The leaf and bark mixture of L. domesticum cv. duku exhibited antibacterial activity towards Bacillus subtile, Staphylococcus aureus, and Echerichia coli. Phytochemical screening of fruit waste of L. domesticum showed the presence of 3β -hydroxyonocera-8, 21α -hydroxyonocera-8, 14-dien-21-one and 14-dien-3-one, lansic acid. The seeds contain tetranortriterpenoids. The bark contains active compounds namely onoceradienedione, lansiolic acid A, iso-onoceratriene and 3-keto lansiolic acid. The methanolic extract of the bark of L. domesticum cv kokossan showed major antibacterial efficacy against Escherichia coli and. Bacillus subtilis The ethyl acetate extract exhibited an antibacterial efficacy with an inhibit zone respectively of 14 and 12.5 mm towards E. coli and B. cereus. Silver nanoparticles have a future in an antimicrobial role. The silver nanoparticles of L. domesticum are spherical in shape with a size from10-30 nm.

Keywords: Meliaceae, Lansium domesticum, bioactive compounds, antibacterial efficacy.

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An Estimation of the Impact of Uninterpretable Power Supply Systems on Electricity Distribution Utility of Pakistan - Pages 92-97

Usama Qazi, Muhammad Rizwan Ali and Abdul Moqueet

https://doi.org/10.6000/1927-5129.2018.14.13

Published: 6 April 2018

Abstract: The power crisis in Pakistan is getting worse day by day. Electricity shortfall has reached upto 5000 MW. Due to power shortage consumers are facing load shedding for more than 6 hrs a day. To get rid of this crisis consumers have opted fossil fueled generators and UPS. Due to excessive availability UPS are more popular than generators. Although, UPS satisfy the need of consumers during power outage hour but due to efficiency constrains these UPS put extra burden on grid. This study estimates the power loss that occurs in consequence of using inefficient UPS. It has been found that about 3.75% of total power provided by the utility is lost during charging and discharging. The research also provides suggestions to eradicate the efficiency losses which occurred as a result of using UPS.

Keywords: Efficiency, Pakistan, Power Crisis, UPS.

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Analgesic and Anti-Inflammatory Effects of Phaseolus vulgaris L. Fixed Oil in Rodents - Pages 174-179

Salma, Sadia Ghousia Baig, Muhammad Mohtasheem ul Hasan, Salman Ahmed and Syeda Anum Fatima

https://doi.org/10.6000/1927-5129.2018.14.26

Published: 27 April 2018

Abstract: The seeds of Phaseolus vulgaris are known as common beans or kidney beans. The dry seeds are eaten as pulse and are enriched with protein, fiber, starch, B vitamins (B1, B6, B9), iron, potassium and selenium. Beans also contain about 1-2 % of fixed oil. Phaseolus vulgaris is linked with anticancer, antihyperlipidemic, hypoglycemic and antioxidant actions. The fixed oil of Phaseolus vulgaris (PVFO) seeds is extracted with hexane and used in this study to assess acute oral toxicity, analgesic (by acetic acid induced writhing, hot plate and tail flick tests in mice) and anti-inflammatory (by carrageenan induced paw edema in rats) actions. Four groups were made (n=6): Group-I: Normal Saline Control (2ml/kg), Group-II: PVFO (2ml/kg), Group-III: PVFO (4ml/kg) and Group-IV: Standard Acetyl salicylic acid (ASA 300 mg/kg). PVFO in 2ml/kg and 4ml/kg dose demonstrated analgesic and anti-inflammatory activities but in hot plate results were unreliable as here significant activity started after 90 minutes. For toxicity test 5ml/kg dose was administered orally in mice and no toxicity symptoms were observed. It is therefore concluded that PVFO is safe for oral use up to 5ml/kg and may possess analgesic and anti-inflammatory actions. 

Keywords: Analgesic, anti-inflammatory, fixed oil, kidney beans, Phaseolus vulgaris.

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