490 research outputs found

    Feature based dynamic intra-video indexing

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    A thesis submitted in partial fulfillment for the degree of Doctor of PhilosophyWith the advent of digital imagery and its wide spread application in all vistas of life, it has become an important component in the world of communication. Video content ranging from broadcast news, sports, personal videos, surveillance, movies and entertainment and similar domains is increasing exponentially in quantity and it is becoming a challenge to retrieve content of interest from the corpora. This has led to an increased interest amongst the researchers to investigate concepts of video structure analysis, feature extraction, content annotation, tagging, video indexing, querying and retrieval to fulfil the requirements. However, most of the previous work is confined within specific domain and constrained by the quality, processing and storage capabilities. This thesis presents a novel framework agglomerating the established approaches from feature extraction to browsing in one system of content based video retrieval. The proposed framework significantly fills the gap identified while satisfying the imposed constraints of processing, storage, quality and retrieval times. The output entails a framework, methodology and prototype application to allow the user to efficiently and effectively retrieved content of interest such as age, gender and activity by specifying the relevant query. Experiments have shown plausible results with an average precision and recall of 0.91 and 0.92 respectively for face detection using Haar wavelets based approach. Precision of age ranges from 0.82 to 0.91 and recall from 0.78 to 0.84. The recognition of gender gives better precision with males (0.89) compared to females while recall gives a higher value with females (0.92). Activity of the subject has been detected using Hough transform and classified using Hiddell Markov Model. A comprehensive dataset to support similar studies has also been developed as part of the research process. A Graphical User Interface (GUI) providing a friendly and intuitive interface has been integrated into the developed system to facilitate the retrieval process. The comparison results of the intraclass correlation coefficient (ICC) shows that the performance of the system closely resembles with that of the human annotator. The performance has been optimised for time and error rate

    MORAL ANTECEDENTS OF ATTITUDE FOR THE PURCHASE OF COUNTERFEIT LUXURY PRODUCTS: MEDIATING EFFECT OF PRICE SENSITIVITY

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    In the recent past demand for counterfeiting has enhanced worldwide and has become serious problem for business and trade of every country. Increasing demand of counterfeit products needs in-depth investigation for stoppage of this crime. The effects of counterfeit purchases are not restricted to branded products but, they also enhance consumer safety risk, reduction in revenues and damage to image of branded products. The aim of this study is to investigate the mediating role of price sensitivity between moral influences and purchase intention of consumer for purchase of counterfeit luxury products. Population for this investigation comprised of non-deceptive purchasers of counterfeit products of district Dera Ismail Khan. For the said purpose one hundred questionnaires were circulated through simple random sampling and out of which 95 completed questionnaires were received and utilized for statistical analysis. The findings of the present study yielded mediation of price sensitivity between the relationship of moral influences and purchase intention. Key Words: Counterfeit Luxury Products, Purchase intention, Moral Influences &nbsp

    Haemodynamics During Induction with Sevoflurane Versus Propofol Using Laryngeal Mask Airways in Forearm Orthopaedic Surgeries in Older Children

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    Background: To compare the hemodynamicchanges during induction of anesthesia withpropofol and sevoflurane in children undergoingforearm orthopedic surgeries.Methods: In this descriptive study 60 pediatricpatients, scheduled for forearm orthopedic surgicalprocedure under general anesthesia requiring LMAinsertion were included. The selected patients wereallocated into two groups; A (Propofol) and B(Sevoflurane) of 30 each. Group A was induced withIV Propofol 2mg/kg while Group B was induced bysevoflurane 6-8%. Anesthetic induction wassupposedly achieved after loss of eyelash reflex.Results: Compared with base line, both groupsshowed a statistically significant decline in meanarterial pressure after induction. Propofol group (A)showed a larger transient decrease in MAP comparedto sevoflurane group (B) (p<0.001). There was astatistical significant overall greater decline in MAPand heart rate after induction with propofol whencompared with sevoflurane.Conclusion: Sevoflurane provides slightly betterhemodynamic stability compared to propofol duringanesthetic induction

    Barriers to the Development and Progress of Entrepreneurship in Rural Pakistan

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    Purpose: Focussing on entrepreneurs’ experiences inhibiting them from launching a business – at the micro level – the purpose of this paper is to identify issues that limit rural entrepreneurship in Pakistan and also, to identify the cultural, social, economic and religious traditions and settings that discourage entrepreneurship thus hindering economic development Design/methodology/approach: An ethnographic approach was used to obtain a picture of current problems and perspectives of rural inhabitants. Members of 84 families were interviewed. Findings: Religious, socioeconomic and structural forces play a significant role in suppressing social and cultural capital in rural areas of Pakistan, explaining the low level of entrepreneurship in these areas. Social and cultural capital requires a certain socioeconomic context for entrepreneurship to thrive. Originality/value: This study examines the determinants of very low levels of entrepreneurship in rural settings in the agro-based regions of interior Sindh, Pakistan; this contributes to the gap of understanding the context of rural entrepreneurs in agro-based economies. This study makes recommendations for policy makers to promote entrepreneurship in such areas

    Derangement in Serum Inflammatory Biomarkers Among Patients with End Stage Renal Disease

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    Background: End stage renal disease is an important public health problem. Renal replacement therapy, dialysis and transplantation are used to provide relief from the symptoms of end stage renal disease whilst also preserving the life of the patients though they are not curative. Haemodialysis is the widely used method although it produces a negative impact on quality of life of the patients. Hypoalbumianemia has been reported to be frequently present in haemodialysis patients and correlates strongly with mortality and morbidity. Objective: To determine the frequency of deranged  inflammatory biomarkers in patients with end stage renal disease on hemodialysis, in Nishtar Hospital Multan. Material and methods: One hundred thirty-one cases with ESRD were selected from Hemodialysis Department, Nishtar Hospital Multan and  3ml of venous blood sample was taken before starting a session of hemodialysis and sent to central laboratory of Nishtar Hospital Multan. Serum Albumin was obtained by an automatic analyzer, and serum CRP by slide test, free of cost, to measure deranged inflammatory biomarkers. Data was analyzed by using SPSS version 20. Results: Of these 131 study cases, 85 (64.9%) were male patients while 46 (35.1%) were female patients. Mean age of our study cases was 42.37 ± 5.98 years. Of these 131 patients with ESRD on hemodialysis 33 (25.2%) were diabetic, 65 (49.6%) were hypertensives and 13 (9.9%) were obese. Mean duration on hemodialysis was 19.51 ± 7.59 months, 80 (61.1%) had to undergo hemodialysis twice a week and 51 (38.9%) had to undergo three times a week. Mean serum albumin level was noted to be 3.37 ± 0.59 g/dl. Mean serum C-reactive protein level was noted to be 20.73 ± 15.84 mg/l. Frequency of deranged inflammatory biomarkers in our study was noted to be in 109 (83.2%) of the study cases. Conclusion: Very high frequency of derangement in inflammatory biomarkers have been noted in our study. This derangement in these inflammatory biomarkers was significantly associated with female gender, increasing age, increased duration on hemodialysis and increased frequency of hemodialysis. The early diagnosis of these derangements followed by preventive measures can help decrease disease morbidity and mortality among targeted population. Keywords: Inflammatory biomarkers, deranged, end-stage renal disease, hemodialysis

    Osteocalcin levels in gingival crevicular fluid periodontitis patient with and without type 2 Diabetes Mellitus

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    Background: Diabetes Mellitus (DM) is a systemic disease with a high prevalence in Indonesia. Periodontitis is a complication of DM with frequent occurrences. Periodontitis with DM causes greater bone damage than non-DM periodontitis because its conditions can affect osteoblast and osteoclast activity. Osteocalcin (OC), mostly synthesized by osteoblasts, regulates the activity of bone formation and turnover so that it can be a marker of bone formation and turnover to see the severity of the disease. OC can be found in gingival crevicular fluid (GCF). This study aimed to determine osteocalcin levels in gingival crevicular fluid periodontitis patients with uncontrolled type 2 Diabetes Mellitus and non-Diabetes Mellitus.Method: Samples used in this study were gingival crevicular fluid taken from 20 samples of periodontitis patients with DM type 2 (DMT2P) and 20 samples of periodontitis non-DM patients. The OC levels were analyzed using ELISA Kit Osteocalcin then statistical tests were carried out.Result: The results showed that the OC level of the DMT2P group was 0.369 ± 0.140 while the periodontitis non-DM group was 0.664 ± 0.141.Conclusion: The OC levels of periodontitis patients with DM are lower than periodontitis patients non-DM

    Formulation and evaluation of chewable tablets of Desloratadine prepared by aqueous and non-aqueous techniques

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    In the modern era, chewable tablets are preferred over conventional dosage forms by pediatric, geriatric and bedridden patients due to difficulty in swallowing, lesser amount of water for swallowing medications as well as unable to tolerate the bitter taste of certain drugs. Chewable tablets of Desloratadine (DS) were formulated by aqueous and non-aqueous granulation method using water paste and Isopropyl alcohol (IPA) as a wetting agents respectively. Desloratadine is used to treat the symptoms of allergy such as sneezing, watery eyes. In the recent research, we have formulated eight trials by various concentrations of excipients. For instance; lactose, talcum, magnesium stearate, blue color, flavor, aspartame, mannitol, avicel 101 and polyvenylpyrollidine (PVP). Pre-compression and post compression parameters (thickness, hardness, friability weight variation and drug content) of the formulations were evaluated. B3 was our optimum dosage form because its Hausner’s ratio, compressibility index, bulk density, tap density, angle of repose have optimum values i.e. 1.01, 5.1%, 0.66(g/cc), 0.69(g/cc), 26.1º respectively and post-compression i.e. thickness, hardness, friability weight variation and drug content have values, 2.9mm, 3.9(kg/cm²), 0.6%, 99.5% respectively. Tablets prepared by wet granulation technique showed reasonable release profile i.e. 100% within the required time i.e. 2 hours.  Moreover, organoleptic evaluation of all formulations were performed. Keywords: Desloratadine, chewable, magnesium stearate, aspartame, compressibility, granulation
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