Path Planning of Industrial Manipulators for Dynamic Obstacles using a New Sensory System

Industrial manipulators perform repetitive and dangerous tasks. They are widely used, however present a source for accidental collisions with human operators. Therefore, they require large isolated spaces heavily taxing factory real-estate. Thus, there exists a need to create a safe cooperative working space shared by both manipulators and humans. The purpose of this research is to provide such an environment by integrating a safety mat-style sensory system, with an implementation of a potential field trajectory planning algorithm. The safety mat sensor has been designed and constructed in a cost effective means acting as a proof of concept for future industrial applications. Both the safety mat and potential field algorithm have been integrated with a CRS F3 manipulator for conducting validation experiments. We have found that our implementation of the potential field algorithm can successfully avoid single, and multiple obstacles detected by the mat. Moreover, collision avoidance is achieved for both static and dynamic obstacles. Finally, our implementation of the potential field algorithm is capable of preventing local minima entrapment of the manipulator, a problem affecting past implementations

Attitude of Medical Students at Sultan Qaboos University toward Psychiatry

Objectives: To examine the attitude of medical students at Sultan Qaboos University (SQU) toward Psychiatry and the impact of factors such as age, gender, curriculum, clinical level, Psychiatry training, and experience of mental illness in self or family. Methods: This is a cross sectional study conducted among medical students at the college of Medicine at Sultan Qaboos University, muscat, Oman. All students from the Pre–clerkship, junior–clerkship and 7th year students were invited to participate in this study. The 30 items Attitude toward Psychiatry survey (ATP–30) was used. Data was analyzed using statistical package for the social sciences (SPSS) version 19. Results: A total of 269 students participated in the study (37% males and 63% females). The Attitude towards Psychiatry (ATP) was moderately positive and the positivity increased among the students who completed psychiatry rotation. The impact of demographic factors on the attitude was not statistically significant. Conclusion: This study showed that medical students at Sultan Qaboos University have a positive attitude toward psychiatry

Epidemiology of Diabetes Mellitus in Oman : Results from two decades of research

Objectives: This study aimed to describe the epidemiology of diabetes mellitus over the past two decades in Oman, particularly in terms of its prevalence and incidence. In addition, the study sought to estimate the future incidence of diabetes in Oman. Methods: Three national and three regional surveys conducted between 1991 and 2010 were analysed to obtain the age-adjusted prevalence and undiagnosed proportion of type 2 diabetes mellitus (T2DM) among Omani subjects aged ≥20 years. Diabetes mellitus registers and published studies were used to determine incidence rates of both type 1 diabetes mellitus (T1DM) and T2DM in Oman. Linear regression was used to determine trends and projections for diabetes in 2050. Results: The age-adjusted prevalence of T2DM in Oman varied from 10.4% to 21.1%, while the highest prevalence of impaired fasting glucose was found in males (35.1%). In comparison to men, higher incidence rates of T2DM were found in women (2.7 cases compared to 2.3 cases per 1,000 person-years, respectively). No significant trends were observed for the prevalence or incidence of T2DM in both genders. Undiagnosed T2DM was more common in men (range: 33–68%) than women (range: 27–53%). The results of this study show that by 2050, there will be an estimated 350,000 people with T2DM living in Oman (a 174% increase compared to estimates for 2015). Conclusion: Health authorities need to prioritise diabetes prevention and control in order to prevent or delay long-term complications and avert a potential epidemic of diabetes in Oman

Perception of Preparedness for Clinical Work Among New Residents: A Cross-sectional Study from Oman.

Objectives: To evaluate new residents’ perceptions of their own preparedness for clinical practice and examine the associated factors. Methods: This is a cross-sectional study conducted on August 20−23, 2016. New residents accepted for postgraduate training by Oman Medical Specialty Board were asked to complete the Preparation for Hospital Practice Questionnaire (PHPQ). Data was analyzed using the Statistical Package for the Social Sciences version 22. Results: A total of 160 residents were invited to participate in this study. Out of 160, 140 residents participated (87.5%), 70.7% were female and 59.3% were graduates from Sultan Qaboos University (SQU). Ninety-nine percent of the graduates were either ‘well prepared’ or ‘fairly well prepared’ for hospital practice. Male residents scored higher in the confidence scale, while residents who did a post-internship general practice placement scored higher in understanding science. Graduates from Oman Medical College felt more prepared compared to graduates from SQU. Conclusions: Most of the new residents were well prepared to clinical work. Factors such as place of undergraduate study, training, and duration of internship significantly influenced the residents’ perception of preparedness. Addressing these factors will enhance residents’ preparedness for clinical work

Differentiation for the Gifted in American Islamic Schools

A brief narrative description of the journal article, document, or resource. This research focuses on teacher instructional and curricular practices in gifted students\u27 experiences in Islamic schools in the United States. Surveys were administered at private, full-time Islamic elementary schools to determine the extent to which differentiation practices for meeting the needs of gifted students and the integration of Islamic values were employed. Findings suggest that Islamic schools in the United States have limited programs for gifted students. A majority of teachers in Islamic schools differentiate little between gifted and average students in instructional strategies. When differentiation occurs, it is very basic. Further, teachers at Islamic schools generally do not integrate Islamic values into other academic areas and present them to all students without differentiation. (Contains 5 tables and 2 endnotes.

Mogul in a Baby

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The Effect of Change in Posture on Spirometry in Patients with Obstructive Sleep Apnoea Syndrome

Objectives: Obstructive sleep apnoea syndrome (OSAS) is a growing health concern as it is associated with serious comorbidities. OSAS is mainly related to obesity, age, gender and a narrowed upper airway is commonly seen in patients with OSAS. This study aimed to compare spirometry parameters between obese OSAS patients and non-obese OSAS patients when patients moved from sitting to supine. Methods: This cross-sectional study was conducted at Sultan Qaboos University Hospital, Muscat, Oman, between December 2009 and December 2010. Patients with severe OSAS and who were OSAS treatment naïve were recruited. Spirometry was performed in all patients in sitting and supine positions to assess forced vital capacity (FVC), forced expiratory volume in the first second (FEV1), FEV1/FVC, forced expiratory flow (FEF) 50%, FEF 25–75%, maximum forced inspiratory flow and expiratory reserve volume. The mean difference in spirometry parameters between patients in sitting and supine positions was calculated. Results: A total of 27 OSAS patients (19 males and 8 females) were included in this study. There was a significant difference in FEV1/FVC in obese and non-obese patients when changing position (P = 0.03). In addition, there was a significant change between male and female patients’ FVC percentages (P <0.05). Male patients with OSAS had reduced FVC compared to females. There was no significant difference in the remaining spirometry parameters with patients’ change of position. Conclusion: A supine position may cause lower airway obstruction in obese patients with OSAS. The reduced FVC in males possibly contributes to the high prevalence of OSAS in men compared to women.Keywords: Obstructive Sleep Apnea; Obesity; Gender; Spirometry; Posture; Oman