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Indigenous Solar Dryer Design and Fabrication For Improved Efficiency

Thesis Info

Author

Waqas Ahmed

Supervisor

Suhail A Soomro; Shaheen Aziz

Department

Chemical Engineering

Program

Mphil

Institute

Mehran University of Engineering and Technology

Institute Type

Private

City

Jamshoro

Province

Sindh

Country

Pakistan

Thesis Completion Status

In Progress

Subject

Chemical Engineering

Language

English

Added

2021-02-17 19:49:13

Modified

2023-02-19 12:33:56

ARI ID

1676729152481

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تم خوشامد میں کچھ نیا سوچو

تم خوشامد میں کچھ نیا سوچو
میں نہیں مانتا میں اچھا ہوں
میرے سنگ رہ کے خود پتا کر لو
تم سے اب کیا کہوں میں کیسا ہوں

العجيب المدهش والحدث المقدس في القصص القرآني

هدفت الدراسة إلى تسليط الضوء على نماذج من القصص القرآني، باعتباره قصصا حقق غايات سامية في إطار ما صُوِّرَ من المواقف والأحداث، وما تضمنه من معنى، وكان ذلك مثلا أعلى في عرض حقائق التاريخ، وفي الإشارة إلى معالم تاريخ البشرية، وصور سلوكها، وتأمل مواقف الأمم. ولتحقيق أهداف الدراسة استخدمت الباحثة مقاربة تحليلية تتغيا تفكيك الظواهر ودراستها دراسة تفصيلية. وقد توصلت الدراسة إلى مجموعة من النتائج أهمها أن القصص القرآني يستدعي الحدث التاريخي من أعماق الزمن، ويجمعه من وجوه الأرض، ليعرضه على الحياة من جديد، في صور العظة والعبرة، وأنه يبعث الحدث التاريخي بعثا جديدا، ويجعله حيا بعد أن كان ميتا، بأسلوب شائق ومضمون فائق. وأوصت الدراسة بمجموعة من التوصيات أهمها: أن النص القرآني يفيض بالعجيب المدهش الذي أوقفه الحق سبحانه على رسله وأنبيائه، هذا العجيب الضارب في الاستغلاق، والمتجاوز لحدود العقل والمعقول، ما هو إلا استعراض لمظاهر القوة الربانية الخارقة لمألوف البشر. الكلمات المفتاحية: القصص القرآني، العجيب، الحدث التاريخي، الحدث المقدس.

Prevalence and Risk Indicators for Attention Deficit Hyperactivity Disorder Adhd in Children at the Aga Khan University Hospital Nairobi

Background: ADHD is the most common childhood neurobehavioural disorder. Affected children experience significant functional problems affecting their relationships with family and peers and academic underachievement. Objectives: The primary objective of this study was to determine prevalence of ADHD in children aged 6-12 years attending Aga Khan University hospital Nairobi Paediatric Casualty. The secondary objective was to ascertain if medically attended physical injury and poor academic performance were risk indicators for ADHD. Additionally, this study set out to determine the diagnostic utility of Vanderbilt Assessment Scale (VAS) compared to DSM-IV in diagnosing ADHD and establish if there is an association between ADHD and co-morbid conditions. Methods: A cross-sectional study was conducted and study participants were recruited from the paediatric casualty. The Principal Investigator used the DSM-IV diagnostic criteria to make a diagnosis of ADHD and parents thereafter filled out the VAS and risk assessment forms consisting of questions about injury and academic performance. Data collected were analysed using STATA. Results: A total of 240 children were recruited. Prevalence of ADHD in children aged 6-12 years at the Aga Khan University Hospital Paediatric casualty was found to be at 6.3% (95%CI 3.7-10.3). The odds of repeating a class when a child had ADHD is 20.2 (95%CI4.0-100.4 p<0.001). A total of 72 children had medically attended injuries. Odds of having an injury when a child had ADHD was 2.9 (95%CI 1.0-8.4 p=0.04) and only two types of injuries were found in the children with ADHD namely; burns (67%) and wounds (37%). Co-morbidities for ADHD; Oppositional Defiant Disorder, anxiety, depression and conduct disorders were not significantly associated with ADHD. v VAS had a sensitivity of 66.7% (95%CI 39-87) and specificity of 99% (95%CI 96-99). Positive predictive value was 83% (95%CI 50-97) and negative predictive value 98% (CI 95-99). Likelihood Ratio (LR +) was 75 (95%CI 18.0-311) and Likelihood Ratio (LR-) was 0.3 (95%CI 0.2-0.7). Conclusion and Recommendations: The ADHD prevalence in this study is similar to global prevalence of 5.29% and other African countries such as Congo and Nigeria where the prevalence was 6% and 8% respectively. Concurrence in prevalence indicates the burden of disease is similar across the three African countries and is comparable to what is happening globally. Consequently, the magnitude of the negative impact ADHD has in the local setting needs to be investigated and compared to other countries to establish its effects on children. Injury and poor academic performance were