FMEA TECHNIQUES USED IN ENVIRONMENTAL RISK ASSESSMENT

Other industries or strategic installations cities after the industrialization process, a large percentage of urban land use, consciously or unconsciously to have been allocated. Investigation and detection of black spots and dangerous in systems and processes to prevent accidents is of particular importance. Risks in the project, are unknown events that may happen in the event of a negative or positive impact on project objectives is effective. Each event has specific causes and consequences are distinguishable. The consequences of these events directly in time, cost and quality. Therefore, effective project risk identification and to determine the effect of special importance. Organizations should be able to use a variety of methods to assess the risk of one or a combination of the select few. This article introduces the risk assessment and FMEA methodology has been focused on the process of doing that

Survey of the Effect of Biotin on Glycemic Control and Plasma Lipid Concentrations in Type 1 Diabetic Patients in Kermanshah in Iran

Abstract Objective: Diabetes mellitus is the most common chronic endocrine disease worldwide. Intensive glycemic control plays an important role in decreasing morbidity and mortality rate of the disease. Preclinical studies have shown that biotin has an essential role in regulating blood glucose and serum lipid metabolism. This study aims to evaluate the effect of biotin on glycemic control and plasma lipids concentrations in type 1diabetic patients. methods: This randomized double-blind placebo-controlled clinical trial study was conducted 70 type 1 diabetic patients with an age range 5-25 years old with poorly controlled (glycosylated hemoglobin ≥8%). Subjects were randomly allocated into two groups. In the intervention group biotin (40 microgram/kg) was administered plus daily insulin, while the control group received placebo plus daily insulin regimen for three months. Laboratory tests including glycosylated hemoglobin (HbA1c), fasting blood sugar and plasma lipids were measured at the base and after 3 months. Results: In this study, seventy patients were evaluated, 35 were allocated to each group. There were no statistically significant differences between age, gender, duration of diabetes, BMI and BP between the two groups (p>0.05). HbA1c in the intervention (biotin) group was 9.84±1.80 at base and after 3 months treatment, it declined to 8.88±1.73 (p<0.001). In the control group HbA1c at base was 9.39±1.58, after 3 months it increased to10.11± 1.68. There were statistically significant differences in the mean of HbA1c in both the biotin and the control groups (p<0.001). FBS in the biotin group at base was 275±65.76 mg/dl and after 3 months it had reduced to 226± 41.31 (p<0.001). There were statistically significant differences in the mean of total cholesterol, low density lipoprotein cholesterol and triglyceride between the two groups at the end of 3 months (p<0.05). Conclusion: Results of this study showed that biotin administration as an adjuvant in addition to insulin regimen can improve glycemic management and decrease plasma lipids concentrations in poorly controlled type 1 diabetic patients

Tuberculin Reactivity in School Age Children; Five-year Follow-up in Iran

Objective: Tuberculosis (TB) is an important infectious disease worldwide. Tuberculin skin test (TST) is the standard test for diagnosis of tuberculosis infection; Bacillus Calmette-Guerin (BCG) vaccination at birth has effects on this test. The aim of this study was to determine the prevalence of positive TST cases among 7- to 11-year-old primary school children and also to follow test-positive individuals for a five-year period. Methods: TST was performed on 10.184 children aged 7-11 years sampled by cluster random method in Kermanshah, West Iran. Those who had a positive test result (i.e. an induration of =15 mm following 72 hours of injecting 0.1 ml of 5 tuberculin units of purified protein derivative from Mycobacterium tuberculosis) were followed for five years to determine the presence of active TB. Also tuberculin positive rates at cut-off points of 10 mm and =15 mm for boys and girls and at different ages were derived and compared using the chi-squared test. Findings: Of 10.184 studied subjects, 830 (8.15%) cases showed positive TST. This rate was 8.7% in boys and 7.8% in girls (P=0.1). A significant linear trend was found between the tuberculin positive rates and age at all cut-off points (P<0.001). No active TB was detected during 5-year follow-up. Conclusion: The rate of positive TST cases in primary school children in Kermanshah, Iran was 8.15% with no new cases of active tuberculosis detection within five-year follow-up

Achieving a Fully-Flexible Virtual Network Embedding in Elastic Optical Networks

Network operators must continuously scale the capacity of their optical backbone networks to keep apace with the proliferation of bandwidth-intensive applications. Today's optical networks are designed to carry large traffic aggregates with coarse-grained resource allocation, and are not adequate for maximizing utilization of the expensive optical substrate. Elastic Optical Network (EON) is an emerging technology that facilitates flexible allocation of fiber spectrum by leveraging finer-grained channel spacing, tunable modulation formats and Forward Error Correction (FEC) overheads, and baud-rate assignment, to right size spectrum allocation to customer needs. Virtual Network Embedding (VNE) over EON has been a recent topic of interest due to its importance for 5G network slicing. However, the problem has not yet been addressed while simultaneously considering the full flexibility offered by an EON. In this paper, we present an optimization model that solves the VNE problem over EON when lightpath configurations can be chosen among a large (and practical) set of combinations of paths, modulation formats, FEC overheads and baud rates. The VNE over EON problem is solved in its splittable version, which significantly increases problem complexity, but is much more likely to return a feasible solution. Given the intractability of the optimal solution, we propose a heuristic to solve larger problem instances. Key results from extensive simulations are: (i) a fully-flexible VNE can save up to 60% spectrum resources compared to that where no flexibility is exploited, and (ii) solutions of our heuristic fall in more than 90% of the cases, within 5% of the optimal solution, while executing several orders of magnitude faster

The effect of oral zinc sulfate on the growth of preterm infants

Background : Zinc is a micro element which plays an important role in the growth of children. Neonates receive the major part of zinc during the third trimester of pregnancy, so preterm infants don’t have enough zinc storage.The aim of this study was to determine the effect of oral zinc sulfate on growth of preterm infants. Materials and Methods: This study was carried out on 106 preterm neonates in the 28-36 weeks of gestational age bracket and between 1000-2500 gr in weight born in Imam Reza and Motazedi hospitals in Kermanshah city. They were randomly divided into two groups. Group 1 received 3 mg/day zinc sulfate for 6 months, but the second group did not received zinc. Both groups were visited monthly and measured for weight, length and head circumference. Results: The mean age of group 1 and control group was (32.9±2.2 week) and (32.7±2.1 week) and at the end of month 6, mean weight in them was (6861.3± 810.3 gr) and (5118.9±534.7 gr) (P< 0.001) respectively. Significant difference in length and head circumference was not found until end of the second month but from third month, they were significant. The mean of length in zinc group was (59.8±3.8 cm) and in control group was (57.0±3.5cm) (P< 0.001) and the mean of head circumference was (41.4±2.0cm) and (39.5±2.5cm) (P< 0.001). Conclusion:Zinc supplementation 3mg daily, for preterm infants for 6 months have significant effect on growth of neonates, weight, length and head circumference

Comparison of the Effects of Attachment Training for Mothers on the Behavioral Responses of Premature Infants: A Randomized Clinical Trial

Background: Premature infants are among high-risk groups in community who need to be hospitalized at intensive care units for survival and receiving basic or special care. Hospitalization at neonatal intensive care units (NICUs) unsettles the family and leads to the separation of parents from their infants. This study aimed to determine the effects of maternal attachment behaviors on the behavioral responses of premature infants, hospitalized at NICUs. Methods: In this randomized clinical trial, 64 premature infants, who were hospitalized at NICUs and were eligible for the study, were randomly allocated to study and control groups. Attachment behaviors including touching, massage and kangaroo care were applied for the study group, while the conventional attachment method was adopted for the control group. Behavioral responses were evaluated two hours before and two hours after training attachment behaviors. Data were analyzed, using Chi-square and student’s t-test. Results: The mean difference in the duration of deep sleep and consciousness was more significant in the study group, compared to the control group. Furthermore, the duration of drowsiness was significantly less in the study group, compared to the control group. Conclusion: The implementation of attachment training at NICUs decreased the time of drowsiness and improved behavioral responses, deep sleep time and consciousness

Effect of White Plastic Cover around the Phototherapy Unit on Hyperbilirubinemia in Full Term Neonates

Objective: Jaundice is a common problem in neonatal period. Phototherapy is the most common treatment for neonatal jaundice. The purpose of this study was to determine the effect of adding white plastic cover around the phototherapy unit on hyperbilirubinemia in full term neonates with jaundice. Methods: In this randomized controlled trial, over 12 months (October 2009 - September 2010), 182 term neonates with uncomplicated jaundice, admitted to neonatal unit of Imam Reza Hospital (AS) in Kermanshah province of Iran, were selected. They were randomized in two groups. Control group received conventional phototherapy without cover around the apparatus and covered group received conventional phototherapy with plastic cover around the unit. After enrolment, total serum bilirubin was measured every 12 hours. Phototherapy was continued until the total serum bilirubin decreased to or less than 12.5 mg/dl. Findings: There were no significant differences between the two groups for gestational age, birth weight, postnatal age, weight (at admission), serum level of hemoglobin, hematocrit and reticulocyte count. Total serum bilirubin in covered group, during the first 48 hours of treatment, declined significantly than in control group (P. value=0.003). The cover around the phototherapy unit not only did not increase the side effects of phototherapy, but also had a positive impact in reducing duration of jaundice (P. value<0.0001) and duration of hospitalization (P. value<0.0001). Conclusion: The study results showed that using white plastic cover around the phototherapy unit can increase the therapeutic effect of phototherapy