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Developing a Technique for Face Recognition Using Pca [Ms Electrical Engineering]

Thesis Info

Author

Fatima

Department

UMT. School of Engineering. Department of Electrical Engineering

Program

MS

Institute

University of Management and Technology

Institute Type

Private

City

Lahore

Province

Punjab

Country

Pakistan

Thesis Completing Year

2016

Thesis Completion Status

Completed

Page

61 . CD

Subject

Engineering

Language

English

Other

; Call No: TP 621.3815 FAT-D

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676713661105

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شاہد رضوان کے افسانے (موضوعاتی مطالعہ)

شاہد رضوان کے افسانے
(موضوعاتی مطالعہ)
شاہد رضوان افسانے کی روایت سے جڑا ایک ایسا افسانہ نگار ہے جس کے ہاں استعاراتی اور نیم علاقائی کیفیات بھی ٹھوس ماحول میں سیال کی صورت بہتی نظر آتی ہیں۔ان کے افسانوی موضوعات ہمارے معاشرے ہی سے جنم لیتے ہیں اور جس تنہائی اور بے کسی کے دور سے ہم گزر رہے ہیں اس کی جھلکیاں ان کی کہانیوں میں جا بجا ملتی ہیں۔ ان کے اسلوب میں روانی اور افسانہ لکھنے کا سلیقہ موجود ہے۔ ان کے افسانوں کے انتساب ہی سے ان کی راہوں کی شد بد ہو جاتی ہے۔
منٹو جیسے عظیم افسانہ نگار کا پیرو افسانے کے اندرونی نظم وضبط سے کیسے بے خبر ہو سکتا ہے؟ شاعر ہونے کے ناطے وہ الفاظ کے استعمال اور ان کی موسیقانہ لہروں سے کیونکر کام نہیں لے سکتا۔ یہ تمام تر خوبیاں ان کے افسانوں میں موجود ہیں۔شاہد رضوان ملک کے ابھرتے ہوئے ان افسانہ نگاروں میں شمار ہوتے ہیں جن کے افسانوں کے موضوعات میں خاصا تنوع ہے۔ان کے افسانوں میںحب الوطنی کے جذبات ،اپنوں کے کھونے کا غم،خوشیوں کا احساس،زندگی کا کرب،عورت کی معاشرتی مجبوریاں، محبت کی پسپائی،ستم ظریفی، جنسی رویہ،تہذیبی رکھ رکھاؤ ،حتیٰ کہ زندگی کا ہر رخ اور ہر پہلو ملتا ہے۔ ان کے افسانوں میں جدید معاشرت بولتی دکھائی دیتی ہے۔
شاہد رضوان کے شعور میں اچھائی اور برائی کے خانے بڑے واضح رنگ میں منقسم دکھائی دیتے ہیں مگر وہ اپنے قارئین کو کسی تلقین کے ذریعے قائل نہیں کرتا بلکہ انہیں باتوں میں لگا لیتا ہے۔ یوں وہ ان کی معصومیت سے فائدہ اٹھاتے ہوئے ان کو اپنی مطلوبہ وادیوں میں لے جاتا ہے۔وہ کہانی کا اختتام نہیں کرتا بلکہ اسے قاری ہی پر چھوڑ دیتا ہے کہ وہ خود سوچے اور نتیجہ اخذ کرے۔
شاہد رضوان تفصیلات،محاکمات اور جزئیات نگاری...

Medical students' perception of online assessment at a private medical college

Introduction: During COVID-19 lockdown, Shalamar Medical College opted for an unproctored online formative assessment. Medical institutes have conducted online assessments before COVID-19 and literature presents contrasting views on its acceptability by teachers and students alike. Objective:  This study aims to determine medical students’ perception of the unproctored online assessments. Methods:  A survey questionnaire was disseminated through Google forms to all MBBS students of SMDC on WhatsApp. Consent to take part in the survey was added to the questionnaire and students consenting to be a part of the survey were requested to fill in the questionnaire. The questionnaire consisted of closed ended as well as open-ended questions. The data was analyzed by IBM SPSS 20. Results:  Network issues are believed to be a major issue in taking online tests (83%) and 45% of the students feel it is more difficult to take an online test. Fifty-eight percent of the students feel it is easy to cheat on online tests. A considerable number of students (P = 0.00) believe that MCQS are more reliable than SEQs. Conclusion:  The results of this study showed that students do not consider online tests as reliable and effective as classroom tests because of network issues, and unconducive environment at home, limited time, and academic dishonesty. However, if they are unavoidable, students would be more receptive to MCQs than SEQs. KEYWORDS: Reliability, cheating, effectiveness, online assessment  

Studies on Deregulation of Base Excision Repair Pathway Genes and Micrornas in Head and Neck Cancer

Base excision repair system plays an indispensable role in maintaining genomic integrity, and its ability to mediate and repair carcinogen-induced DNA lesion is a key determinant of susceptibility to carcinogenesis. Increasing evidence has demonstrated that reduced DNA repair capacity might play a central role in cancer development. This study is divided in two parts, first part was aimed to investigate the BER pathway gene expression at DNA, RNA and proteins levels and to correlate these parameters with head and neck cancer risk and disease progression in Pakistani population. Second part of this study was identification of a panel of deregulated microRNAs and contribution of deregulated miR- 99 family in tumorigenesis of HNSCC. In first part of the study, PCR-single-strand conformation polymorphism and DNA sequencing were used to analyze the whole exonic region of OGG1, APEX1 and XRCC1 in 450 head and neck cancer patients and 300 controls. Sequence analysis of OGG1 gene revealed eight novel mutations (six missense and two frame shift mutations). Among these eight mutations, frequencies of missense mutations, Asp267Asn, Ser279Gly and Ile253Phe were 0.12 (12%), 0.13 (13%) and 0.06 (6%) respectively. Frequencies of other missense mutations, 1578A>T, 1582C>T and Ala399Glu were 0.13 (13%), 0.13 (13%) and 0.16 (16%), whereas values for the frame shift mutations 1582insG and 1543_1544delCT were 0.13 (13%) and 0.16 (16%). In addition to these mutations, two silent (Gln718Gln, His699-700His) and four missense (Ala597Val, Thr608-610Pro, Glu707Lys and 1578G<A) mutations of OGG1 gene were observed specifically in laryngeal cancer patients. DNA sequences for APEX1 gene exhibited three novel muatations such as 13T>G, Ser129Arg and Val131Gly in HNC patients. Frequency of 13T>G, Ser129Arg and Val131Gly was calculated as 0.17 (17%), 0.24 (24%) and 0.22 (22%) respectively. Germline screening of XRCC1 gene revealed two silent and two missense mutations. Frequency of silent mutations; Pro206Pro and Gln632Gln was calculated as 0.16 (16 %) and 0.30 (30 %) respectively. Whereas, the frequency of missense mutations; Arg399Gln and Tyr576Asn was calculated as 0.27 (27 %) and 0.28 (28 %) respectively. xThe mRNA level and protein levels of base excision repair pathway genes (OGG1, APEX1 and XRCC1) and a proliferation marker, Ki-67, was studied in a cohort of 50 HNSCC patients and controls, using real-time PCR and Immunohistochemistry in order to determine the potential prognostic significance of these factors. Using real-time PCR, statistically significant down-regulation of XRCC1 (p<0.01) and OGG1 (p<0.04) was observed in HNC tumor samples compared to control samples. Ki-67 (p<0.03) and APEX1 (p<0.02) was over-expressed in HNC tumor samples versus control samples. Immunohistochemical analysis of OGG1, APEX1, XRCC1 and Ki-67 showed that among 50 HNC samples that we examined, 78% of OGG1 cases exhibited down-regulated expression, 65% of APEX1cases exhibited up-regulated level, 64% of XRCC1cases showed down-regulation and 75% of Ki-67 cases exhibited up-regulation. From the current study, OGG1, APEX1 and XRCC1 were found to be one of the factors responsible for systematic progression of HNC. Our data suggests that germline mutations in base excision repair and down-regulation of base excision repair pathway genes, such as OGG1 and XRCC1, combined with over-expression of APEX1 and Ki-67 (a marker for excessive proliferation) may contribute to the initiation and progression of HNSCC in Pakistani population. MicroRNA deregulation is a critical event in head and neck squamous cell carcinoma (HNSCC). Several microRNA profiling studies aimed at deciphering the microRNA signatures of HNSCC have been reported, but there tends to be poor agreement among these studies. The second part of this study was to survey the published microRNA profiling studies on HNSCC, and to assess the commonly deregulated microRNAs in an independent sample set. We identified 67 commonly deregulated microRNAs in current study. The up-regulation of miR-21, miR-155, miR-130b, miR-223 and miR-31, and down-regulation of miR-100, miR-99a and miR-375 were further validated in an independent set of HNSCC cases with quantitative RT-PCR. Among these validated microRNAs, miR-100 and miR-99a belong to miR-99 family. Our in vitro study demonstrated that restoration of miR-100 to HNSCC cell lines suppressed cell proliferation and migration, and enhanced apoptosis. Furthermore, ectopic transfection of miR-99 family members down-regulated the expression of insulin-like growth factor 1 xireceptor (IGF1R) and mechanistic target of rapamycin (mTOR) genes. In current study, we identified a panel of frequently deregulated microRNAs in HNSCC, including members of miR-99 family. The deregulation of miR-99 family contributes to the tumorigenesis of HNSCC, in part by targeting IGF1R and mTOR signaling pathways.