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Byline: T. Azizi, MHK. Motamedi, S. Jafari Background: Osteosarcomas (OS) of the jaws are uncommon lesions representing 6-8% of skeletal OS. We assessed the characteristics, demographics, prevalence clinical and histopathological [...]

Obesity is associated with polymorphisms of the fat mass and obesity associated gene (FTO). This meta-analysis aimed to investigate the association of the rs9930506 FTO gene polymorphism and obesity. To the best of our knowledge, this study is the first meta-analysis to evaluate the relation between FTO rs9930506 polymorphism and obesity.

Due to the importance of the slip effect on modeling of microchannel and microcavity, numerical investigations have been introduced in this work for studying the mixed convection of Al2O3-water nanofluid in a square microcavity. Governing equations are discretized and solved using the Finite Volume Method and SIMPLER algorithm. The Knudsen number is selected between 0.001 and 0.1 to consider slip velocity and the temperature jump boundary conditions in slip flow regime. In this study we investigate the influence of the Knudsen number on the average Nusselt number and heat transfer rate of Al2O3-water nanofluid. Results shows that the average Nusselt number is the function of Richardson number, Knudsen number and volume fraction of nanoparticles. Increasing the Richardson number, makes the forced convection less effective and leads in reduction of the Nusselt number. Hence, increasing the Knudsen number, leads to the temperature gradient reduction and reducing the average Nusselt number. As a result, the average Nusselt number could be enhanced up to 10.93% by using nanoparticles in the base fluid. [ABSTRACT FROM AUTHOR]

Leishmaniasis is a parasitic disease prevalent throughout the world. According to the geographic region in which different Leishmania species are found it can present variably. Because of the increase in both international travel and immigrant populations, the numbers of reported cases of leishmaniasis is on the increase. It is important that clinicians are able to recognize the cutaneous lesions and unusual presentations of leishmaniasis (CL). Our case was an incidental finding during treatment of a gunshot wound. The lesions were mistaken for facial pimples because they were numerous and the patient was a teenager. The patient was treated with sodium stibogluconate.

In this study, the effect of MQL application on the tool wear, surface roughness and chip formation in turning Aluminum alloy 6061 is investigated. Experiments were carried out by plain turning of an Aluminum bar with varying depth of cut, cutting speeds (spindle speed) and cutting environments (Dry, Wet and MQL). A newly designed, cost efficient and portable MQL setup was developed for this study. For each experimental trial, five passes were carried out in order to promote the formation of tool wear. After each pass, the tool surface was examined under a microscope and the surface roughness was measured using a stylus based surface tester. The extent of tool wear from each pass is measured by using ImageJ software. Chips were collected after the five passes and were physically examined. The newly designed MQL delivery system was successful in delivering a fine mist of lubricant at the cutting point. MQL lubrication provided lower surface roughness and tool wear values compared to wet and dry conditions due to effective temperature reduction and improved lubrication penetration of cutting zones, as well as better chip flushing. Chip formed under MQL conditions had reduced chip thickness due to reduced temperatures. MQL was found to have the greatest positive impact on tool wear and surface roughness parameters based on ANOVA results.

Incontinentia pigmenti (IP) or Bloch-Sulzberger syndrome is a rare X-linked dominant genodermatosis related to the NF kappa B essential modulator (NEMO) gene with approximately 800 cases reported worldwide. It usually occurs in females characterized by cutaneous, skeletal, neurological, ocular and dental abnormalities as well as an increased risk of childhood malignancies. Herein, we report a case of IP in a 14-year-old girl emphasizing early diagnosis and adding to the current literature on the subject.

Background: Brain-dead patients are not salvageable. While the number of patients who need organ transplantation is increasing, the shortage of organ donors remains significant. Object: To determine the knowledge and attitudes of Bojnurd citizens towards brain death and organ donation. Methods: In this cross-sectional study, conducted between March and August 2014, 380 Bojnurd citizens were selected through multistage sampling method. The tool was a self- structured questionnaire consisting three parts: demographic, knowledge, and attitude towards organ donation. The questionnaire was validated by content validity method and was made reliable by Chronbach's a method. Results: 55 of citizens were female. The mean±SD age of participants was 29.9±9.3 years. The majority of citizens had moderate levels of knowledge; most of them did not have a positive attitude towards organ donation. Citizens with poor attitudes had lower knowledge (p=0.047). Conclusion: The majority of citizens had negative attitudes towards life-giving organ donation; therefore public education in order to correct the beliefs, develop positive attitudes and increase the knowledge of them is essential. [ABSTRACT FROM AUTHOR]

Background: Brain-dead patients are not salvageable. While the number of patients in need of organ transplantation is increasing, the shortage of organ donors remains significant. Objective: To determine the knowledge and attitudes of Bojnurd citizens towards brain-dead and organ donation. Methods: In this cross-sectional study, conducted in August 2015,122 emergency and intensive care nurses of Bojnurd's hospitals were selected through a convenient sampling method. The tool used, was a self-completeing questionnaire consisting of three parts; it was validated by content validity method; its reliability was determined by Chronbach's α. Results: 65 of studied nurses were female. The mean±SD age of participants was 31.1±6.5 years. The mean±SD knowledge and attitude scores were 14.4±2.4 and 52.1±6.1, respectively. There were not significant differences between males and females in terms of knowledge and attitude scores. Conclusion: The knowledge of nurses was good and the attitude was in moderate level. With regard to the important role of nurses in caring of patients' family member, it has been suggested that some necessities should be provided for transferring this knowledge to brain death patient's families. [ABSTRACT FROM AUTHOR]

Abstract Background During the last decades, global migration has increased and many immigrant groups have a higher prevalence than the native born population of several cardiovascular disease risk factors, including poor dietary habits. However, it is uncertain if dietary habits in immigrant populations reflect dietary habits in their country of origin or if the current diet is a consequence of the migration and possible change of dietary habits. The aim of this study was to examine possible dietary differences between elderly Iranians living in Stockholm, Sweden with elderly Iranians living in Tehran, Iran, taking into account sex, age, marital status, and education. Methods Dietary intakes were assessed by semi - quantitative food frequency questionnaire in a cross-sectional study of 121 Iranians living in Stockholm and 52 Iranians living in Tehran, aged 60-80. Differences in dietary habits between the two groups was analysed by bootstrapped regression analyses with 1000 replications. Results Iranians living in Sweden had significantly higher intake of protein, total fat, fiber than Iranians living in Iran, but lower consumption of carbohydrates. The observed differences in intake of macronutrients were reflected in consumed amount of all food items, which were higher among Iranians living in Iran with the exception of bread and grain consumption which was lower. Conclusions There are general differences in dietary habits between Iranians living in Iran and Iranians living in Sweden. Parts of observed differences in dietary habits may reflect a favourable adoption process to the Swedish dietary habits after migration. Meanwhile other differences are point of concern in light of the high prevalence of overweight, among Iranians living in Sweden and can have unfavourable impact in particular in the context of cardiovascular health.