Comparison of health- related quality of life between obese women with binge eating disorder and obese women without binge eating disorder

Nowadays obesity It is an important factor in onset of disease and early mortality followed by personal and social consequences.  One of the effects of the obesity is its impacts on quality of individual's life while some studies proved that Binge eating disorder affects obesity consequences. So  in this cross sectional study, among all of clients to obesity clinic Sina Hospital with sampling   health- related quality of life61  obese women with  binge eating disorder was compared with those of 74obese women withoutbinge eating disorder through performing sf-36 questionnaire and the results were analyzed by using independent t-test. Results showed that in six subscales of health-related Quality of Life, the group of women without binge eating disorder ranked over those women with binge eating disorder. Parallel to weight loss in obese and overweight people and due to its impacts on the consequences over the obese people, it seems necessary to equally focus on the treatment of binge eating disorder simultaneously

A novel method for fabricating conductive microfibers for microbial fuel cells

The increasing demand for energy resources has urged scientists to focus on improving the renewable energy sources. Microbial fuel cells (MFCs) have received an increasing attention. Both energy conversion mechanism and electrode type have attributed to affect the efficiency of the microbial fuel cells. Electrodes as one of the most important components of the microbial fuel cells have been widely investigated. While most of the electrode materials are carbon based, there is very little effort on introducing novel materials for this purpose. This paper intends to shed an insight on the effect of using a new cathode material on the performance of microbial fuel cells. We employ hydrodynamic forces to control both molecular organization and microstructure size and shape in order to create highly structured microfibers. A microfluidic sheath flow device is used for the fabrication processes. The core flow is acrylate solution and UV light cures the photoinitiator to start the polymerization process. The exiting stream goes inside a water bath, where the sheath flow dissolves in the DI water and the core flow forms the microfibers. Controlled self-assembly can be used to deposit a thin layer of functionalized metal nanoparticles on the polymeric structure made from microfibers to enhance their electric conductivity. A conductive and porous network formed by the microfibers can be used as an efficient cathode material in microbial fuel cells. Furthermore, using this fabrication technique we can make microfibers with different shapes and sizes

Development of Polymeric Porous Membrane for Mediator-Less Microbial Fuel Cells: An Electrochemical Study

In this work, gold nanoparticles (AuNPs) are embedded on the proton exchange membrane in a straightforward manner and are made highly stable. Nanoparticles provide high surface-to-volume ratio with excellent biocompatibility, using appropriate ligands, which allows for a biocompatible environment for bacterial functions. High conductivity, high surface area and catalytic properties of AuNPs make them excellent materials for MFCs. We employed layer-by-layer (LbL) self-assembly technique to prepare multilayered thin-films of polycation poly(allylamine hydrochloride) (PAH) and negatively functionalized AuNPs. The (PAH/AuNP) thin-films act as the catalyst layers and are to provide means for high porosity and high electrical conductive in the LbL thin-films when the polycation serve to assist LbL thin-film formation through ionic bonds. Scanning electron microscopy was used to investigate the morphology and nano/microstructure of the porous membrane catalyst. Samples consisting of different thickness thin-films were tested for their performance over five-day periods. Bioelectricity was generated using Shewanella oneidensis MR-1 cultivated on organic substrate with trypticase soy broth medium. Trypticase soy broth and ferricyanide were injected into the anode and cathode chambers as anolyte and catholyte respectively. Generated voltage and current were monitored and recorded using LabView though NI-DMM, over five-day periods

Validity and Reliability of Bariatric Surgery Self- Management Behaviors Questionnaire in Iranian Population

Background: Bariatric surgery is the most effective intervention for treatment of severe obesity and patient’s adherence to self management behaviors are essential to reduce complications after surgery. The purpose of this study was to investigate the validity and reliability of bariatric surgery self-management behaviors questionnaire (BSSQ) in Iranian population. Methods: From December 2016 till June 2016, all obese patients who underwent laparoscopic obesity surgery in Shiraz Ghadir Mother and Child Hospitalwere were enrolled. Their demographic characteristics, BSSQ, General Adherence Scale (GAS), and the Specific Adherence Scale (SAS) questionnaires were collected. The content, structural and simultaneous validity and factor analysis were determined using GAS and SAS questionnaires. Results: According to psychometric factors including eating behaviors, fluid intake, vitamin and mineral supplement intake, fruits, vegetables, whole grain and protein intake, physical activity and dumping syndrome management, 6 factors could explain 61.5% of BSSQ. Total score of correlation matrix BSSQ with GAS and SAS were 0.36 and 0.70. For reliability, the Cronbach’s alpha coefficient was found 0.90 and Guttmann split-half coefficient was 0.78. Conclusion: BSSQ was shown to have an acceptable validity and reliability to be used for assessing the bariatric surgery self-management behaviors in Iranian population

A novel method for fabricating conductive microfibers for microbial fuel cells

The increasing demand for energy resources has urged scientists to focus on improving the renewable energy sources. Microbial fuel cells (MFCs) have received an increasing attention. Both energy conversion mechanism and electrode type have attributed to affect the efficiency of the microbial fuel cells. Electrodes as one of the most important components of the microbial fuel cells have been widely investigated. While most of the electrode materials are carbon based, there is very little effort on introducing novel materials for this purpose. This paper intends to shed an insight on the effect of using a new cathode material on the performance of microbial fuel cells. We employ hydrodynamic forces to control both molecular organization and microstructure size and shape in order to create highly structured microfibers. A microfluidic sheath flow device is used for the fabrication processes. The core flow is acrylate solution and UV light cures the photoinitiator to start the polymerization process. The exiting stream goes inside a water bath, where the sheath flow dissolves in the DI water and the core flow forms the microfibers. Controlled self-assembly can be used to deposit a thin layer of functionalized metal nanoparticles on the polymeric structure made from microfibers to enhance their electric conductivity. A conductive and porous network formed by the microfibers can be used as an efficient cathode material in microbial fuel cells. Furthermore, using this fabrication technique we can make microfibers with different shapes and sizes.This is a conference proceeding from Proccedings of the ASME 2013 International Conference on Engery Sustainability & 11th Fuel Cell Science, Engineering and Technology Conference (2013): 1. Posted with permission.</p

Psychometric Indices of Post Bariatric Surgery Self-Management Behaviors Questionnaire

Abstract Background: Bariatric surgery is the most effective intervention for treating severe obesity and patient's adherence to self-management behaviors is essential to reduce complications after surgery. The purpose of this study was to investigate the psychometric properties of BSSQ in Iranian population. Materials and Methods: The statistical society was all of the obese patients that underwent laparoscopic obesity surgery in Shiraz Ghadir Mother & Child Hospital from December 2016 till June 2016, and 201 of them (149 females and 52 males) were selected by using available sampling method. They responded to demographic characteristics, post bariatric surgery self-management behaviors questionnaire and general and specific adherence scales. For validity, methods such as content validity, structural validity (factor analysis and correlation analysis), simultaneous validity were used. The reliability of the questionnaire was determined by using bisection and internal stability methods by Cronbach s alpha. Results: According to the results of explatory factor analysis, sisx factors including eating behaviors, physical activity, fruits, vegitables, grain and protein intake, fluid intake and dumping syndrome management were elicited, that these 6 factors explained 61.54% of variance of self-management behaviors. Total score of correlation matrix BSSQ with GAS & SAS were 0.363 and 0.702. For reliability, the Cronbach's alpha coefficient of this instrument was found 0.90 and guttman split-half coefficient was 0.78. Conclusion: Results show that BSSQ has an acceptable validity and reliability and it can be used for assessing the post bariatric surgery self-management behaviors in Iranian population

The Effectiveness of Information-Motivation-Behavioral Model on Improve the weight and Body Size Among Women Undergoing Bariatric Surgery

Background: Considering the high increase in individuals' weight and its complications in different societies, as well as the progression of bariatric surgery techniques, psychological interventions are needed to reduce postoperative complications and to increase their positive outcomes for these patients. Therefore, the purpose of this research was to study the effectiveness of Information-Motivation-Behavioral (IMB) model on improving weight and body size in women undergoing bariatric surgery. Materials and Methods: The design of present semi- experimental study was pre-test, post-test with experimental and control groups. The statistical population included all obese women that undergone laparoscopic sleeve gastrectomy surgery in Shiraz Ghadir Mother & Child Multi Super Specialty Hospital, during second half of 2016. The 30 of them were selected by using available sampling method and they randomly were assigned to 2 groups, experimental (n=15) and control (n=15). The Balance with ruler, Tape measure& demographic information questionnaire was used to collect data for each 2 groups in two steps (pre-test and post-test). IMB model was implemented for the experimental group in four weeks (each week a 1/5 hour session) in Hospital Obesity Clinic. SPSS19 software was used and data were analyzed by using MANCOVA method and the significance level was P <0.05 for meaningful results. Results: The results of multivariate covariance analysis showed that IMB model has had a significant effect on improving weight and body size in obese women undergoing bariatric surgery (p<0/05). Conclusion: The results of this research showed that Information Motivation Behavioral model can be effective to improve weight and body size in women undergoing bariatric surgery. &nbsp

Effectiveness of motivational interviewing in promoting hand hygiene of nursing personnel

Background: Motivational interviewing (M.I.) is an option for modifying an individual′s behavior. It is used as an educational method in recent years. The aim of our study was to indicate whether or not education, using lecture alone and lecture with M.I., would affect the performance of nursing personnel regarding their hand hygiene. If so, which of these two methods were most effective for this purpose? Methods: This was an interventional study conducted in Bahrami Pediatric Hospital in Tehran. The study population consisted of all nursing personnel in the hospital. Considering the responsibilities of different nurses and their educational status, we divided them into three classes. The participants of each class were randomly assigned to either the control or experiment groups training lecture alone or lecture with M.I., respectively. We used Independent-t, Paired-t, Mann-Whitney U and Wilcoxon signed ranks tests for analysis. Results: Education using lecture alone improved the hand hygiene performance of nursing personnel only in the first and third classes ( P = 0.002 and P = 0.001, respectively). Similarly, lecture combined with M.I. improved the hand hygiene performance of personnel in the first and third classes ( P < 0.001 and P = 0.004, respectively). The latter method was more effective compared to lecture alone in the first and third classes ( P < 0.001 and P = 0.013, respectively). Conclusions: Education based on lecturing improves hand hygiene performance among nursing personnel. It will be more effective if combined with M.I

Development of Polymeric Porous Membrane for Mediator-Less Microbial Fuel Cells: An Electrochemical Study

In this work, gold nanoparticles (AuNPs) are embedded on the proton exchange membrane in a straightforward manner and are made highly stable. Nanoparticles provide high surface-to-volume ratio with excellent biocompatibility, using appropriate ligands, which allows for a biocompatible environment for bacterial functions. High conductivity, high surface area and catalytic properties of AuNPs make them excellent materials for MFCs. We employed layer-by-layer (LbL) self-assembly technique to prepare multilayered thin-films of polycation poly(allylamine hydrochloride) (PAH) and negatively functionalized AuNPs. The (PAH/AuNP) thin-films act as the catalyst layers and are to provide means for high porosity and high electrical conductive in the LbL thin-films when the polycation serve to assist LbL thin-film formation through ionic bonds. Scanning electron microscopy was used to investigate the morphology and nano/microstructure of the porous membrane catalyst. Samples consisting of different thickness thin-films were tested for their performance over five-day periods. Bioelectricity was generated using Shewanella oneidensis MR-1 cultivated on organic substrate with trypticase soy broth medium. Trypticase soy broth and ferricyanide were injected into the anode and cathode chambers as anolyte and catholyte respectively. Generated voltage and current were monitored and recorded using LabView though NI-DMM, over five-day periods.This is a conference proceeding from Proceedings of the 7th International Conference on Energy Sustainability (2013): 1. Posted with permission.</p