Resource Allocation for Energy-Efficient Device-to-Device Communication in 4G Networks

Device-to-device (D2D) communications as an underlay of a LTE-A (4G) network can reduce the traffic load as well as power consumption in cellular networks by way of utilizing peer-to-peer links for users in proximity of each other. This would enable other cellular users to increment their traffic, and the aggregate traffic for all users can be significantly increased without requiring additional spectrum. However, D2D communications may increase interference to cellular users (CUs) and force CUs to increase their transmit power levels in order to maintain their required quality-of-service (QoS). This paper proposes an energy-efficient resource allocation scheme for D2D communications as an underlay of a fully loaded LTE-A (4G) cellular network. Simulations show that the proposed scheme allocates cellular uplink resources (transmit power and channel) to D2D pairs while maintaining the required QoS for D2D and cellular users and minimizing the total uplink transmit power for all users.Comment: 2014 7th International Symposium on Telecommunications (IST'2014

Is the Staple Food Consumed Changes in Diabetics can Affect the Quality of Life? A Parallel Randomized Controlled Trial.

Backgrounds: Diabetes is one of the chronic diseases that need continual medical care and self-care education, as well as nutritional therapy as an integral part of dietary management. This study was carried out to investigate the effect of bulk bread formulated with portulaca oleracea on quality of life (QOL) in patients with type 2 diabetes. Methods: This parallel randomized controlled trial was conducted on 104 patients with type 2 diabetes. Participants received bulk bread containing 10% portulaca powder for 8 weeks (intervention group); the control group used their normal daily bread.  The quality of life score was estimated in both groups by the use of the Short-form 36-Item (SF-36) questionnaire before the intervention, and 8 weeks after dietary intervention, the quality of life score between both groups was compared. The significant level was set at 0.05. Results: The difference in the mean score of quality of life of the studied units in different dimensions of physical function, role limitation due to physical problems, role limitation due to emotional problems, physical pain, social function, energy and vitality, mental health, general health, and overall quality of life showed that  there was a significant difference in the mean in all dimensions and quality of life, except mental health, was observed in the case group after the intervention. The mean difference in quality of life in different dimensions before and after the intervention in the intervention group is significant. Conclusions: According to the results, it was revealed that consumption bulk bread formulated with portulaca oleracea can promote the quality of life in patients with type 2 diabetes. So, it can be concluded that portulaca oleracea as a functional plant can be found in bread as a new treatment and prevention method in patients with diabetes. Keywords: Bread, Portulaca oleracea, Quality of life, Type 2 diabetes.&nbsp

Is the Staple Food Consumed Changes in Diabetics can Affect the Quality of Life? A Parallel Randomized Controlled Trial.

Backgrounds: Diabetes is one of the chronic diseases that need continual medical care and self-care education, as well as nutritional therapy as an integral part of dietary management. This study was carried out to investigate the effect of bulk bread formulated with portulaca oleracea on quality of life (QOL) in patients with type 2 diabetes. Methods: This parallel randomized controlled trial was conducted on 104 patients with type 2 diabetes. Participants received bulk bread containing 10% portulaca powder for 8 weeks (intervention group); the control group used their normal daily bread.  The quality of life score was estimated in both groups by the use of the Short-form 36-Item (SF-36) questionnaire before the intervention, and 8 weeks after dietary intervention, the quality of life score between both groups was compared. The significant level was set at 0.05. Results: The difference in the mean score of quality of life of the studied units in different dimensions of physical function, role limitation due to physical problems, role limitation due to emotional problems, physical pain, social function, energy and vitality, mental health, general health, and overall quality of life showed that  there was a significant difference in the mean in all dimensions and quality of life, except mental health, was observed in the case group after the intervention. The mean difference in quality of life in different dimensions before and after the intervention in the intervention group is significant. Conclusions: According to the results, it was revealed that consumption bulk bread formulated with portulaca oleracea can promote the quality of life in patients with type 2 diabetes. So, it can be concluded that portulaca oleracea as a functional plant can be found in bread as a new treatment and prevention method in patients with diabetes. Keywords: Bread, Portulaca oleracea, Quality of life, Type 2 diabetes.&nbsp

Periplasmic expression and one-step purification of urease subunit B of Helicobacter pylori

UreB is one of the urease subunits of Helicobacter pylori and can be used as an excellent antigen candidate for H. pylori vaccination. Easy access to highly purified UreB protein, facilitate advances in therapeutic or preventive strategies. To achieve a simplified purification procedure, the present report represents a novel method of producing recombinant urease subunit B extracellularly. ureB gene from 26,695 standard strain was amplified by PCR and cloned into pET-26b(+) expression vector. UreB was expressed as a soluble, N-terminal pelB and C-terminal hexahistidine-tagged fusion protein (UreB-6His) and secreted into the periplasmic space of Escherichia coli. Expression of the recombinant UreB in E. coli BL21 (DE3) was induced by isopropylthio-β-d-galactoside (IPTG). Expression of UreB was confirmed by sodium dodecyl sulphate–polyacrylamide gel electrophoresis (SDS–PAGE) and western blot analysis using anti-His monoclonal antibody. UreB-6His protein was extracted from the periplasm by osmotic shock treatment and was purified in one step by Nickel affinity chromatography. In conclusion, the present protocol is easier to perform; more time effective and low cost than earlier methods. Keywords Helicobacter pylori –Urease subunit B–Cloning–Periplasmic expression Periplasmic expression and one-step purification of urease subunit B of Helicobacter pylori (PDF Download Available). Available from: https://www.researchgate.net/publication/227181089_Periplasmic_expression_and_one-step_purification_of_urease_subunit_B_of_Helicobacter_pylori [accessed Dec 09 2017]

Analysis of good urban governance indicators (Case study: Kahnuj city)

Objective: The theory of good urban governance is a new theory that makes it possible to implement sustainable development in society. The purpose of this study is to investigate the indicators of good governance in Kahnuj city and to try to identify the differences and similarities in the type of view and perception of key stakeholders in the subject of good governance (ie citizens, managers and experts) of governance indicators in Kahnuj.                                                            Methods: The research method is quantitative in nature and in terms of descriptive-analytic purpose. The data gathering tool is a researcher-made questionnaire based on Kahnuj city governance indices. Kahnuj is the year that 380 members of the statistical population and 30 managers and experts of Kahnuj city were randomly sampled. Results: The findings of the study indicate that the overall score of the governance index is lower than the average for citizens (2.73) and for experts it is below average (2.86), indicating a low status of urban governance in both groups. Also, surveys showed that out of the seven main indicators of urban governance examined in this study, 70% of them had lower average citizen ratings than experts, and the only two indicators of participation and performance status were the opposite. Findings show that the most disagreement among citizens with managers and experts is in the indicators of transparency, consensus and accountability and the most common among them in the indicators of effectiveness and efficiency.                       Conclusion: Therefore, reforms in the administrative, administrative and political structures, efficient and up-to-date laws, and in particular increased awareness of citizens about the laws, should include the end result of these proposals that can increase public confidence in the law and the Because its implementation will result in institutions and organizations of urban management

Evaluation of the curriculum for undergraduate course of operating room in international level and suggesting an appropriate curriculum for Iran

BACKGROUND: The objectives of an educational system in a society are based on society's requirements. Since personnel knowledge and skill are not qualified with the advantages of science and invention of new tools, new needs are arisen. Comparing the curriculum of undergraduate course of operating room of our country with international societies, it seems that this curriculum is not a good one to educate experts for taking care of the patients before, while and after operation. This research is done in an international level to determine a curriculum for operating room course and suggest a suitable educational program. METHODS: Executive method contained 3 stages. In first stage after searching the web and finding the curriculum of operating room course in the world, the current curriculum was compared to the findings in second stage and in third stage a questionnaire has sent to 17 experienced members of faculty scientific board and after performing their opinions and modifications, the curriculum for undergraduate course of operating room was suggested. RESULTS: This research's findings contain two sets of data obtained from searching the internet and polling research samples which result to the suggestion of curriculum for undergraduate course of operating room. CONCLUSION: Surveying the suggestion of research units showed that more than 50 percent of courses have utility more than 90 percent and the minimum utility is belonged to hygiene and internal medicine and digestion and tumors operation courses (about 76%). By modifying these courses ambiguities are cleared and finally the suitable curriculum suggested

Complement protein and Immunoglobulins Serum levels in Normal Pregnant and Spontaneous Aborted Women

Disorder of maternal immune responses during pregnancy triggers immunological rejection of fetus antigens by maternal immune components, contribute to spontaneous abortion or miscarriage. The study was designed to concentrated on immunoglobulins (IgM, IgG and IgA) and complement elements (C3 and C4)   serum levels changes in normal pregnant and abortion women. Study groups were classified into normal pregnant women (20), spontaneous abortion (30) and non-pregnant women (16) as a control group, attending to Shahid Dr. Khalid Hospital/Department of Gynecology and Obstetrics/Koya city. Serum levels of immunoglobulins (IgG, IgM, and IgA), complement proteins (C3 and C4) were determined and analyzed for normal pregnant, abortion and control groups by using Single Radial Immunodiffusion (SRID) technique. The results demonstrated that concentration of IgG levels in abortion differed significantly in compare to normal pregnancy (p ≤0.05), while there were no significant differences in IgM and IgA serum levels among groups (p >0.05). Also, statistical analysis revealed that serum levels of C3 and C4 significantly decreased in abortion group compared to normal pregnant and non-pregnant groups (p ≤0.05). Concluded that complement proteins (C3 andC4) are a good defense line during normal pregnancy, sometime activation (hyper-consuming) of complement elements may provoke spontaneous abortion, while immunoglobulins are a little role in inducing of miscarriage in pregnant women

Analysis of factors affecting the increase of social resilience of cities (Case study: Najafabad city)

Objective: Social resilience to improve and keep the city's performance as one of the fundamental strategies For Disaster Reduction Against Hazards Special emphasis is placed on Forming social groups and Upgrade social capital and increasing participation among residents.Therefore,identifying the factors that promote social resilience can reduce vulnerability to natural hazards.Therefore, the main purpose of this study is to analyze the relationship between social components and prioritize the effective factors on promoting social resilience in Najaf Abad. Methods: Current article is In terms of functional purpose  and with the descriptive-analytical methodan. Data collection was done by means of questionnaire and survey. Amos Structural Equation Modeling was used to analyze and process the data. Results:According to the results, the most influential component on promoting social resilience against natural hazards in Najaf Abad is the social capital component with path coefficient of 0.82. Conclusion: In case of efforts are made to improve neighborly relations, it can be hoped that, when risks occur, individuals with appropriate and timely response and behavior will preserve their lives and those around them and be less likely to suffer mental, financial, and personal injury. In general, promoting social capital and partnerships between citizens can increase social resilience in the city of Najafabad and reduce vulnerability at the time of the hazards

The effect of supermint oral drop (peppermint essence) on the patients’ pain and their satisfaction after colonoscopy

زمینه و هدف: کولونوسکپی روشی تهاجمی است که برای بیمار به ویژه کودکان ناراحت کننده و دردناک است. هدف از تحقیق حاضر بررسی میزان تأثیر تجویز قطره خوراکی سوپرمینت (اسانس نعناع) بر درد و رضایتمندی بیمار پس از عمل کولونوسکوپی بوده است. روش بررسی: در این مطالعه کارآزمایی بالینی، 101 بیمار کاندید عمل کولونوسکوپی به روش در دسترس انتخاب و به طور تصادفی به دو گروه تقسیم شدند. به گروه شاهد(50 نفر) دارویی تجویز نشد. به گروه مورد (51 نفر)، 20 قطره خوراکی سوپرمینت 30 دقیقه قبل از کولونوسکوپی خورانده شد. پس از عمل کولونوسکوپی با استفاده از پرسشنامه استاندارد میزان درد و رضایتمندی بیمار بررسی شد. داده ها توسط آزمون توصیفی و تحلیلی (t-test) مورد تجزیه و تحلیل قرار گرفت. یافته ها: میانگین میزان دردهای شکمی در گروه شاهد 527/0±500/2 و در گروه مورد 491/0± 625/1 از نمره 10 بود (05/0

The study of upper gastrointestinal endoscopy in patients with inflammatory bowel disease and ulcerative colitis

زمینه و هدف: در بررسی های تشخیصی بیماری های التهابی روده، یکی از موارد تشخیصی انجام آندوسکوپی فوقانی است که علاوه بر تأیید تشخیص، در افتراق کولیت های نامشخص نیز کمک کننده است. هدف از این مطالعه بررسی لزوم انجام آندوسکوپی فوقانی در بیماران مبتلا به التهاب روده بوده است. روش بررسی: در این مطالعه توصیفی- تحلیلی تعداد 30 کودک در بیمارستان مرکز طبی به صورت سرشماری از مهر 1388 تا اسفند 1389 که به عنوان بیماری کرون و کولیت اولسراتیو به تشخیص قطعی رسیدند؛ تحت انجام آندوسکوپی فوقانی قرار گرفتند و داده ها با استفاده از نرم افزارSPSS و آزمون آماری t-test تجزیه و تحلیل شدند. یافته ها: از30 کودک با تشخیص بیماری التهابی روده، تعداد 15 بیمار دچار کرون و مابقی کولیت اولسراتیو داشتند. نتایج مطالعه حاضر حاکی از درگیری ماکروسکوپی مری در 93 بیماران، درگیری معده در 87 و درگیری دئودنوم در 26 بیماران با تشخیص کرون بود. در بیماران کولیت اولسراتیو درگیری مری 80، معده 66 و دئودنوم 20 بود. از نظر میکروسکوپی در بیماران کرون درگیری مری 94، درگیری معده 80 و در نهایت درگیری دئودنوم 47 مشاهده شد. در بیماران کولیت اولسراتیو از نظر میکروسکوپی 94 درگیری مری، 87 درگیری معده و 67 درگیری دئودنوم داشتند. نتیجه گیری: با توجه به درصد قابل توجه درگیری دستگاه گوارش فوقانی در بیماران با بیماری التهابی روده، انجام آندوسکوپی در تمام بیماران جدا از نوع و محل درگیری و بررسی هیستوپاتولوژیک کاری منطقی و لازم بنظر می رسد