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Life Science Journal 
 Acta Zhengzhou University Overseas Edition
 (Life Sci J)
ISSN 1097-8135 (print); ISSN 2372-613X (online), doi prefix: 10.7537, Monthly
 
Volume 13 - Number 12 (Cumulated No. 71), December 25, 2016. life1312
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CONTENTS  

No.

Titles / Authors /Abstracts

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1

Relationship between family cohesion and level of responsibility of high school students in Pakdasht City in Tehran Province

 

Simin Siri1, Narges Siri2

 

1.  Teacher of Natural Science, Master of Health Education, Tarbiat Modarres University

2.  Chemistry teacher, Master of Chemistry, Payam Noor University of Qom

sirisimin@yahoo.com

 

Abstract: The pattern of Erikson's eight stages of psychosocial most important task of adolescence is identity formation in the course of the adolescent search for identity, unmatched search and find out who he is? What role should play in society. He is a child or adult? His ability to take on the role of head of household or spouse how much will it be? And the search process that affects adolescent behavior, the path to search for experiences and adolescent identity crisis and must resolve the confusion and try to achieve a stable identity. And the need to meet safety values, jobs, personal interactions, the role of gender, religion, political affiliation and deal with the physical changes of puberty. It also emerged that his new desires with their need to meet new goals outside the framework of the Family search in the course of his relationship to peers oriented and from the age of social relationships he developed after independence from parents faced with, and cohesion social responsibility and strengthen it in person even though you have from an early age, the division of duties and the proper functioning of his family and began to be institutionalized. This study aimed to determine the relationship between family cohesion and the of secondary school students in the city of Tehran in the academic year 2015-2016 in Pakdasht City in Tehran Province.

[Simin Siri, Narges Siri. Relationship between family cohesion and level of responsibility of high school students in Pakdasht City in Tehran Province. Life Sci J 2016;13(12):1-6]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 1. doi:10.7537/marslsj131216.01.

 

Keywords: family cohesion, responsibility, high school student

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2

Diagnostic Laparoscopy in Gastric Cancer: An Essential Tool for Proper Staging

 

Sherif A. Mustafa, Tamer A. El-Bakary, Mohamed A. Mlees

 

General Surgery Department, Tanta University Hospital, Egypt.

mohamedmless@gmail.com

 

Abstract: Background: Gastric cancer is a leading cause of cancer related death worldwide. Pre-operative accurate staging is crucial for proper planning of treatment strategy. In spite of great advances in CT scan, MRI, PET scan, and endoscopic ultrasound (EUS), about 30% of resectable tumors will have distant metastases at the time of surgery. Aim: to assess the role of diagnostic laparoscopy in proper pre-operative staging of gastric cancer and reducing the number of unnecessary laparotomies. Patients & Methods: the study included 35 patients with resectable gastric adenocarcinoma as proved by pre-operative CT scan and EUS. All the patients were submitted to diagnostic laparoscopy prior to the definitive resection. Results: in 8 out of 35 patients (22.8%), the curative resection was postponed due to presence of liver nodules in 2 patients (5.7%), peritoneal metastases in 2 patients (5.7%), and ascetic fluid in 4 patients (11.4%). Pathological examination revealed malignant nature in 7 out of these 8 patients. In 1 patient with ascites, cytological examination of the ascetic fluid did not show malignant cells. Diagnostic laparoscopy had a sensitivity rate 100% & a specificity rate of 96.4%. Nomorbiditiesor mortalities were recorded with diagnostic laparoscopy in this study. Conclusion: diagnostic laparoscopy is a sensitive tool in detecting distant metastases of gastric cancer if compared to CT scan & EUS. It helps to avoid unnecessary laparotomy with low morbidity and mortality rates.

[Sherif A. Mustafa, Tamer A. El-Bakary, Mohamed A. Mlees. Diagnostic Laparoscopy in Gastric Cancer: An Essential Tool for Proper Staging. Life Sci J 2016;13(12):7-9]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 2. doi:10.7537/marslsj131216.02.

 

Keywords: Gastric cancer, diagnostic laparoscopy, staging

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Effects of Food Colour Allura Red (No. 129) on some neurotransmitter, Antioxidant Functions and Bioelement Contents of Kidney and Brain Tissues in male albino Rats

 

Bawazir A. E

 

Department of Zoology, King Abdul-Aziz University Faculty of Science, Jeddah, K.S.A

 

Abstract: Currently, Allura Red (E 129) is a colourant which typically added in food products, drugs and cosmetics. This study exam the influence of chronic ingestion of allura red at 200mg/kg for 8 weeks in rat via determination of some neurotransmitter, antioxidant levels in brain, kidney tissues. Our results show that neurotransmitter contents decreased in treated group, while urea and creatinin increased in the serum. The brain and kidney tissue MDA and GSH levels were a significant decrease after 8 weeks. histological examinations showed kidney damages, allura red induces adverse effects on brain, and kidney.

[Bawazir A. E. Effects of Food Colour Allura Red on some neurotransmitter, Antioxidant Functions and Bioelement Contents of Kidney and Brain Tissues in male albino Rats. Life Sci J 2016;13(12):10-17]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 3. doi:10.7537/marslsj131216.03.

 

Keywords: Effect; Food; Colour; neurotransmitter; Antioxidant Function; Bioelement Content; Kidney; Brain; tissue; Rat

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4

Remission of T1 DM with Combination Therapy of Oral hypoglycaemics and DPP-4 in an Adult – A Case Report

 

Hassan M. Al-Musa

 

Family & Community Medicine Department, College of Medicine, King Khalid University, Abha, Kingdom of Saudi Arabia

fcmcomkku@gmail.com; almusa3@hotmail.com

 

Abstract: As part of the natural progression of diabetes, some patients regain beta-cells activity transiently. This period is often referred to as the remission ofT1DM. Here we report a rare case of a 26 yr old Saudi male with spontaneous remission of Type 1 DM, who presented in our clinic with polyurea, polydypsia and fatigue. By profession he worked as a teacher, not known to have any chronic disease except DM, no drug history, his father had diabetes. He was given insulin basal bolus for 2 month after diagnosed with fasting blood sugar 400 and glycosylated hemoglobin 11%. He was evaluated and shifted him to combination therapy of oral hypoglycemic drug: metformin and DPP-4 and long acting drug gliclazide. Patient was followed every one month till blood sugar levels were maintained to normal. Dose was tapered off every two weeks till all medications were completely stopped Symptoms were relieved within 3 months after treatment with combination therapy. Patient went into complete remission from past 2 years.

[Al-Musa HM. Remission of T1 DM with Combination Therapy of Oral hypoglycaemics and DPP-4 in an Adult – A Case Report. Life Sci J 2016;13(12):18-21]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 4. doi:10.7537/marslsj131216.04.

 

Key words: Type 1 Diabetes Mellitus, Metformin, DPP-4, Sulfonylurea, Remission

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5

Job Satisfaction of Saudi Nurses Working in Makkah Region Public Hospitals, Saudi Arabia

 

Mohammed Alshmemri, Lina Shahwan-Akl and Phillip Maude

 

School of Health Sciences (Nursing and Midwifery), RMIT University, Melbourne, Australia.

Email: shmemri@gmail.com

 

Abstract: Background: Saudi Arabia has over many decades relied exclusively on the recruitment of expatriate nurses to service its hospitals. Whilst Saudi nurses have been increasing in numbers, it is important that they be satisfied with their jobs in order to maintain and retain the National Nursing Workforce in Saudi Arabia. This research study explored the job satisfaction levels of Saudi national nurses working in three main public hospitals in the Makkah region of Saudi Arabia. Methods: A descriptive, explorative study used a mixed-method design to capture the job satisfaction levels of Saudi nurses working in three public hospitals in order to identify the factors that influence levels of job satisfaction among them. Data were collected from 272 Saudi national nurses who were surveyed to identify which factors they believe led to job satisfaction. Herzberg’s Motivation-Hygiene Theory has been utilised as the theoretical framework to guide this study. Results: This study found that Saudi nurses working in public hospitals were not satisfied with their jobs. The finding in this study indicated that more female Saudi nurses were dissatisfied with their jobs than the male nurses. Nurses who are dependent adults, and who have worked in public hospitals for a period of 5-10 years were dissatisfied with their jobs. Furthermore, nurses who have experience of 4-10 years in nursing were also dissatisfied. Conclusion: The findings of this study will provide insights that may influence recruiting, retaining, and increasing the number of female and male Saudi nationals who study nursing, subsequently alleviating the shortage and bringing stability to the Saudi nursing workforce in public hospitals.

[Mohammed Alshmemri, Lina Shahwan-Akl and Phillip Maude. Job Satisfaction of Saudi Nurses Working in Makkah Region Public Hospitals, Saudi Arabia. Life Sci J 2016;13(12):22-33]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 5. doi:10.7537/marslsj131216.05.

 

Keywords: Job dissatisfaction, Saudi Nurses, shortage of nurses in Saudi Arabia, nurses in Makkah region, Saudi public hospitals, Herzberg’s Motivation-Hygiene Theory.

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First record of Curtonotum simile Tsacas, 1977 (Diptera: Curtonotidae) on rabbit carcass from Jeddah, Kingdom of Saudi Arabia

 

Layla A.H. Al-Shareef

 

Faculty of Science-Al Faisaliah, King Abdulaziz University, Ministry of Education, Kingdom of Saudi Arabia

layladr@hotmail.com

 

Abstract: Adult of acalyptrate fly Curtonotum simile, were collected from rabbit carcass in desert area in Jeddah city, west region of the Kingdom of Saudi Arabia. The fly was obtained at autumn season. The details of morphological characters were detected and photographed. This knowledge is essential to build up database about dipteran diversity in Jeddah biogeoclimatic zone.

[Layla A.H. Al-Shareef. First record of Curtonotum simile Tsacas, 1977 (Diptera: Curtonotidae) on rabbit carcass from Jeddah, Kingdom of Saudi Arabia. Life Sci J 2016;13(12):34-40]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 6. doi:10.7537/marslsj131216.06.

 

Keywords: Curtonotidae, Curtonotum simile, acalyptrate fly, Diptera, Jeddah

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Experimental Study of Partial Replacement of Fine Aggregate with Waste Material from China Clay Industries

 

Syed Qasim Shabbir1, Sajjad Ahmed2, Ahsan Sarfraz3

 

1,3Department of Civil Engineering and Technology, Institute of Southern Punjab, Multan.

2Department of Civil Engineering, Mirpur Azad Kashmir University.

qasimzaidi014@gmail.com

 

Abstract: With the Industrial Revolution, Technology developed rapidly and the manufacturing age came into view. Early industries were on at small scale and produced smoke as the main Pollutant. But as the number of factories increased and work on the large scale the issue of industrial pollution started to take on too much importance. So for this purpose, the utilization of industrial and agricultural waste produced by the industrial process has been the focus of waste reduction research for economical, environmental and technical reasons. The problem arising from continuous technological and industrial development is the disposal of waste material. A partial substitution of cement or fine aggregate by an industrial waste is not only economical but also improves the properties of fresh and hardened concrete as lowering the shrinkage and minimize the cracks and enhance the durability characteristics besides the safe disposal of waste material thereby protecting the environment from pollution. This paper deals with the partial replacement of fine aggregate with the industrial waste from China Clay industries. The compressive strength, split tensile strength and flexural strength of conventional concrete and fine aggregate replaced concrete are compared and the results are tabulated.

[Syed Qasim Shabbir, Sajjad Ahmed, Ahsan Sarfraz. Experimental Study of Partial Replacement of Fine Aggregate with Waste Material from China Clay Industries. Life Sci J 2016;13(12):41-45]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 7. doi:10.7537/marslsj131216.07. 

 

Key Words: Industrial Waste, China clay (Kaolin) waste, compressive strength, Concrete, Fine aggregate, Flexural strength, Split tensile strength.

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8

Protein Engineering: A Brief Overview Methodologies and Applications

 

*Qurban Ali1, Aadil Sultan1, Ammar Azhar1, Naila Kanwal2, Fawad Ali3, Asif Rasheed1, Muhammad Adnan1, Shahbaz Ahmad4, Muhammad Umair Naseem1, Idrees Ahmad Nasir1 and Tayyab Husnain

 

1Centre of Excellence in Molecular Biology, University of the Punjab Lahore, Pakistan

2Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad (38000)-Pakistan

3Institute of Plant Science, Southern Cross University, Lismore (2480)-Australia

4Institute of Agricultural Sciences (IAGS), University of the Punjab Lahore, Pakistan

Corresponding author: saim1692@gmail.com

 

Abstract: Protein engineering is a field having roots in recombinant DNA technology, where manipulations in gene are viewed as changes in protein sequences responsible for desired properties. Methodologies for engineering proteins can broadly be classified as methods that require complete prior knowledge of protein, forming the concept of rational methodology or the method of directed evolution that mimics the process of natural evolution. Though conventional techniques have always proved useful, protein engineering has contributed to study functional properties in more diverse way. Classes of engineered enzymes such as proteases and amylases have substantial applications in food, detergent, paper and several other industries. Protein engineering so far has been successful to generate proteins that have fruitful applications in industry, health and medicinal sciences as well as in nanobiotechnology.

[Ali Q, Sultan A, Azhar A, Kanwal N, Ali Fawad, Rasheed A, Adnan M, Ahmad S, Naseem MU and Nasir IA. Protein Engineering: A Brief Overview Methodologies and Applications. Life Sci J 2016;13(12):46-55]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 8. doi:10.7537/marslsj131216.08.

 

Keywords: protein engineering, rational protein design, directed evolution, engineered enzymes, nanobiotechnology, emerging protein engineering

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9

Alleviation of Cadmium Toxicity to Maize by the Application of Humic acid and Compost

 

Ali Chaab1, Abdolamir Moezzi1, G.olamabbas Sayyad1 and Mostfa Chorom1

 

1-Department of Soil Science, College of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran

alichaab87@gmail.com

 

Abstract: The influence of compost and humic acid on cadmium (Cd) concentration in shoot and root as well as growth parameters (root and shoot dry weight, chlorophyll content) and activities of antioxidant enzymes of maize in contaminated soil were investigated. The experimental variables were the level of soil contamination with Cadmium (0, 25, 50 mg cd/kg soil) and the type of organic substance (compost and humic acid). The study was laid out in a factorial randomized complete design. Results indicated that enhancement of Cd concentration in soil decreased root and shoot dry weight, chlorophyll content and relative growth rate of plant. Growth parameters declined progressively with increasing concentrations of cadmium. Application of organic substance especially humic acid decreased the negative effects of Cd. Humic acid was more effective than compost as Cd concentration in root and shoot was concerned. Increase in Cd concentration in shoots can be attributed to the high mobility of this element in plant. Organic substances usage enhanced transportation index of Cd. Cd toxicity created oxidative stress in plant that consequently antioxidant enzymes were activated. Increasing of Cd concentration enhanced superoxide dismutase and catalase activity. Noticeable point it was the stop of catalase activity at high level of Cd.

[Ali Chaab, Abdolamir Moezzi, G.olamabbas Sayyad and Mostfa Chorom. Alleviation of Cadmium Toxicity to Maize by the Application of Humic acid and Compost. Life Sci J 2016;13(12):56-63]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 9. doi:10.7537/marslsj131216.09.

 

Key word: cadmium, dry weight, organic substances

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Analysis and Novel Performance of Long and Short Shunt Self Excited Generators with Natural Energy Generation

 

1V. Karthikeyan2V.J. Vijayalakshmi

 

1V. Karthikeyan, Assistant Professor is with the Department of Electronics and Communication Engineering, SVS College of Engineering, Coimbatore, Tamilnadu, India (e-mail: journalkeyan@gmail.com).

2V.J. Vijayalakshmi Assistant Professor is with the Department of Electrical and Electronics Engineering, KPR Institute of Engineering and Technology, Coimbatore, Tamilnadu, India (e-mail: vijik810@gmail.com)

 

Abstract: Analysis and Novel Performance of Long and Short Shunt Self Excited Generators with natural Energy generation is presented. An outwardly ambitious induction machine can function as induction generator with unremitting self excitation when a suitable value of a capacitor bank is appropriately associated transversely at the stator terminal of the machine. Such a machine is said to be Self-Excited Induction Generator (SEIG). We proposed the series capacitor bank which really improves the voltage profile and also increases the maximum power delivery capability. The main significant of the projected work is that the effects of both long-shunt and short-shunt connections on the dynamic performance of an SEIG feeding and Induction Motor load is compared. We also examined the analysis of the reactive power prerequisite of self excited induction generator at different load conditions. Finally we originate that the short shunt self-excited induction generator is the attractive option for improved better voltage regulation and also maintain the good power quality. Wind turbine act as the prime mover of the projected work. The simulation work is carried out by the MATLAB and the result of the proposed work promises better voltage profile with grid connected system.

[V. KarthikeyanV.J. Vijayalakshmi. Analysis and Novel Performance of Long and Short Shunt Self Excited Generators with Natural Energy Generation. Life Sci J 2016;13(12):64-73]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 10. doi:10.7537/marslsj131216.10.

 

KeywordsSelf-Excited Induction Generator (SEIG), Long & short shunt configuration, Reactive power compensation

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Biochemical and biophysical variations in the characteristics of rat blood exposed to magnetic fields "in vivo study"

 

Sahar E. Abo-Neima1, Abdel H. Sakr 1, Metwaly Kotb2, Marwa H. Ashery1 and H. A. Motaweh1

 

1Department of Physics, Faculty of Science, Damanhour University, Egypt.

2Medical Research Institute, Alexandria University, Egypt.

Sahar_amr2002@yahoo.com

 

Abstract: To study the effects of magnetic field (MF) of strength 50Hz-5mT on some biochemical properties of rat tissue. Forty eight of male albino rats were used, of average weight 170 ± 10gm. The animals were housed in the same environmental conditions in plastic cages, and feed with balanced diet and tap water. The animals were divided into two groups as follows: Group A: Consists of 8 animals used as a sham radiation group and housed at normal environmental conditions of pressure and temperature. The temperature inside the lab varied between 22oC and 25oC during the experimental period. Lighting condition was day light and darkness during night. Group B: Consists of 40 animal was divided into four subgroups (8 animals for each group) namely B1, B2, B3, B4 and B5, which were exposed to the magnetic field of 5 mT for a period of one week, two weeks, three weeks, and four weeks respectively. Group B5 was exposed for a period of four weeks and used for performing the required analysis after 45 days (for delayed effect study). The results indicated that there are a significant decrease in the hematological constituents of blood such as haemoglobin concentration Hb, hematocrit percentage and red blood cells count RBCs as compared to control group, but there is an improvement for the recovery group B5. The viscosity of the blood was increased for animals of all groups as compared with control group A. The differences in viscosity demonstrate the effects of RBCs aggregation and deformability respectively. The result showed that the changes in liver enzymes and total protein from blood serum analysis showed that MF produced alteration in biochemical parameters of the liver transaminases SGOT and SGPT which have been widely utilized in mammalian toxicology as biomarkers of specific organ dysfunction. In general the increase in transaminases activity is usually associated with hepatocyte damage. While the kidney functions revealed a significant increase in the concentration of urea and creatinine compared with the control group (non-exposed). The increase of the concentration of urea and creatinine causes chronic complications in some organs of the body. it will be concluded that this study suggests that, in humans under investigation, the activities of liver enzymes GOT and GPT may increase by exposure to MF generated during magnetic resonance imaging or nuclear magnetic resonance procedures.

[Sahar E. Abo-Neima1, Abdel H. Sakr, Metwaly Kotb, Marwa H. Ashery and H. A. Motaweh. Biochemical and biophysical variations in the characteristics of rat blood exposed to magnetic fields "in vivo study". Life Sci J 2016;13(12):74-84]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 11. doi:10.7537/marslsj131216.11.

 

Keywords: magnetic field, RBCs, SGOT, SGPT, urea, creatinine

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Dyes Removal from Textile Wastewater by Chemical Treatment

 

Moustafa Abd Elmoniem Ashmawy

 

Civil Engineering Department, Faculty of Engineering – Mattaria, Helwan University, Egypt

Email: mashmawy95@yahoo.com

 

Abstract: Removal of dyes from textile wastewater is a big challenge to protect the environment and water bodies. In this research treatment of the wastewater produced from the dyeing and finishing stages in the textile industry by chemical aided processes is investigated. Several parameters such as wastewater conductivity, COD and total dissolved salts (TDS) were considered. Different chemicals were applied to the industrial wastewater and optimum operating doses were experimentally determined. Application of ferric chloride (FeCl­3) as coagulant aid, polyacrylamide polymer as flocculation aid, and bentonite clay as pH adjustment was able to reduce contaminants to the permissible level by the Egyptian environmental regulations for the discharge of treated industrial effluents into the municipal wastewater collection system. Although the use of ferric chloride, polyacrylamide polymer and bentonite cause increase in the TDS and conductivity but final effluent was still within the acceptable limit. The applied chemical treatment removal efficiency for BOD, COD and TSS reached up to 74%, 92% and 74 % respectively. The produced sludge was recycled after being pressed by a local manufactured cloth fiber filter where fabrication of bricks from the produced sludge was possible.

[Moustafa Abd Elmoniem Ashmawy. Dyes Removal from Textile Wastewater by Chemical Treatment. Life Sci J 2016;13(12):85-92]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 12. doi:10.7537/marslsj131216.12.

 

Keywords: Industrial Wastewater Treatment, Textile Industry, Chemical Treatment, Dyeing process, Coagulants.

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Prevalence of Nasal Carriage of Methicillin-Resistant Staphylococcus aureus among Health Care Workers in a Tertiary Care Hospital, Jazan Province, Kingdom of Saudi Arabia

 

Ahmed Abdulhaq*1, Ali I. Swaid2 Mohamed Al-Amoudi1, Amani M. Marwan1, Abrar Mohammed Ayoub1, Afnan Fatah Al-Deen Khamis1, Sakhaa Abdu Holba1, Mousa Hamad Mugri1, Vinod Kumar Basode1

 

1 Unit of Medical Microbiology, Department of Medical Laboratory Technology, College of Applied Medical Science, Jazan University, Jazan, Saudi Arabia

2 Ear Nose Throat Department, College of Medicine, Jazan University, Jazan, Saudi Arabia

alhaq444@gmail.com

 

Abstract: Background: Globally, methicillin resistant Staphylococcus aureus (MRSA) is one of the leading bacteria causing nosocomial infections. Hence, we conducted a study on the colonization of MRSA among health care workers (HCWs) from a south coastal region of Saudi Arabia. Materials and Methods: A total of 174 nasal swab samples were collected from HCWs (physicians, nurses, lab specialists and workers) from different departments of a tertiary care hospital, Jazan Province, Saudi Arabia. MRSA strains were identified using an automated VITEK 2 microbial identification system (bioMérieux, Marcy l’Etoile, France). Results: Our results reveal that 27% of HCWs were colonized with S. aureus, and among them, 12.1% were MRSA, and 14.9% were methicillin sensitive Staphylococcus aureus (MSSA) strains. MRSA carriage among HCWs was 2.9% in doctors, 7.5% in nurses and 0.6% in laboratory staff. The MRSA carriage rate in HCWs, according to their working department, was varied. Among MRSA strains, four were MLSB inducible. Conclusions: There is an urgent need to improve effective control measures for preventing the spread of MRSA.

[Ahmed Abdulhaq, Ali I. Swaid Mohamed Al-Amoudi, Amani M. Marwan, Abrar Mohammed Ayoub, Afnan Fatah Al-Deen Khamis, Sakhaa Abdu Holba, Mousa Hamad Mugri, Vinod Kumar Basode. Prevalence of Nasal Carriage of Methicillin-Resistant Staphylococcus aureus among Health Care Workers in a Tertiary Care Hospital, Jazan Province, Kingdom of Saudi Arabia. Life Sci J 2016;13(12):93-99]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 13. doi:10.7537/marslsj131216.13.

 

Keywords: MRSA, health care workers, Staphylococcus aureus

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Electrochemical investigations on the corrosion inhibition of aluminum by Green Leafy Vegetables in 1M HCl

 

Sameerah I. Al-Saeedi1,2, Ghadah M. AL-Senani1,2 and Rasmiah Almufarij1,2

 

1Department of Chemistry, College of Science Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia

2Deanship of Scientific Research, Princess Nora Bint Abdulrahman University, Riyadh, Saudi Arabia.

sialsaeedi@pnu.edu.sa; salsaeedi@hotmail.com

 

Abstract: The effects of Lactuca sativa (Lactuca) extracts on the corrosion of aluminum in 1M HCl were investigated as environmentally safe corrosion inhibitors using Potentiodynamic polarization and weight loss measurements. Surface morphology was tested by scanning electron microscopy (SEM). The results show that inhibition efficiencies increased with increase in extract concentrations. The adsorption of the inhibitor extract on aluminum surface is spontaneous and obeys Langmuir’s isotherm. The results obtained from polarization measurements indicate that the Lactuca sativa (Lactuca) extracts act as mixed-type inhibitorwith predominant anodic effectiveness.

[Sameerah I. Al-Saeedi, Ghadah M. AL-Senani, and Rasmiah Almufarij. Electrochemical investigations on the corrosion inhibition of aluminum by Green Leafy Vegetables in 1M HCl. Life Sci J 2016;13(12):100-105]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 14. doi:10.7537/marslsj131216.14.

 

Keywords: Hydrochloric acid, Corrosion inhibition, Green Leafy Vegetables, Adsorption

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Management of recurrent lumbar disc herniation with or without ipsilateral transpedicular screw fixation

 

Mohammed Hasan Mansour, Hamdy Mohammed Behairy, Ma'amoon Mohammed Abo Shosha and Hatem Sa'ad Elkholy.

 

Department of Neurosurgery, Al-Azhar Faculty of Medicine, Al-Azhar University, Cairo, Egypt.

neuro_m52@yahoo.com

 

Abstract: Recurrent lumbar disc is a major cause of surgical failure with two fundamental surgical problems. First is the disturbance of anatomical planes due to adhesions, while the second is sequels of degenerative changes. Objective: the objective of this study is to evaluate the surgical outcome of recurrent lumbar disc herniation with or without ipsilateral transpedicular screw fixation, with highlights on lumbosacral instability classification. Patients and methods: one hundred patients with recurrent lumbar disc herniation were managed surgically by discectomy, curettage and unilateral transpedicular screw fixation at the offending side (50 patients among 100 patients of recurrent lumbar disc), or discectomy with endplate curettage (50 patients among 100 patients of recurrent lumbar disc). Results: the recovery rate was higher in the first group with less recorded complications.

[Mohammed Hasan Mansour, Hamdy Mohammed Behairy, Ma'amoon Mohammed Abo Shosha and Hatem Sa'ad Elkholy. Management of recurrent lumbar disc herniation with or without ipsilateral transpedicular screw fixation. Life Sci J 2016;13(12):106-111]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 15. doi:10.7537/marslsj131216.15.

 

Keywords: recurrent lumbar disc, lumbar disc, unilateral lumbosacral fixation, grade 1 lumbosacral instability

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The following manuscripts are presented as online first for peer-review, starting from December 2, 2016. 

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