The research work presented in this thesis focuses on the development of techniques specific to surveillance videos for efficient video compression with better processing speed. The Scalable Video Coding (SVC) techniques are explored to achieve better compression efficiency. The framework of SVC is modified to support Surveillance Centric Coding (SCC). Motion estimation techniques specific to s...

We describe SCC-kS, a Speculative Concurrency Control (SCC) algorithm that allows a DBMS to use eeciently the extra computing resources available in the system to increase the likelihood of timely commitment of transactions. Using SCC-kS, up to k shadow transactions execute speculatively on behalf of a given uncommitted transaction so as to protect against the hazards of blockages and restarts....

Risk factors for development of esophageal cancer and patients at risk have not been well understood yet. In this study we evaluated the association of ABO blood groups with incidence and clinicopathologic features of esophageal squamus cell carcinoma (SCC) in 375 cases treated in the referral cancer institute during five years period (2001-2006). Overall, the most prevalent blood group both in...

A low energy ion beam system for space charge compensation (SCC) experiments was developed and evaluated. This system was designed for observation of SCC of a positive ion beam with an electron beam. The system consisted of the ion source chamber and the SCC experiment chamber. The ion source chamber was equipped with the compact microwave ion source for low voltage extraction. Ion current at i...

A total of 1947 farms from the Pomerania and Kujawy regions were analysed for the effect of type of pen (with or without litter) on the cytological quality of milk, taking into account the season of the year in the statistical calculations. It was found that in most barns, cows were kept in shallow litter stalls. Regardless of the season of the year, milk of the highest cytological quality was ...

Heavy smokers with central type squamous cell carcinoma (SCC) frequently have multiple cancerous lesions in the bronchus. Autofluorescence bronchoscopy (AFB) is useful in the detection of early bronchogenic cancer and dysplastic lesions. We investigated the loss of heterozygosity (LOH) and microsatellite instability (MSI) and expression of four proteins in 13 early stage SCC (early SCC) and 9 s...

PURPOSE Nonmelanoma skin cancer is the most common cancer and comprises basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). The incidence of SCC increases drastically in immunosuppressed individuals, suggesting a critical role of the immune system in controlling SCC. To find an explanation for the selective immunosurveillance of SCC, we investigated the expression of cancer-testis (CT...

We established a human tissue explant model to facilitate study of cutaneous squamous cell carcinoma. We accomplished this by implanting debulked SCC, from surgical discard, into nude rats. Human SCC remained viable and continued to proliferate for at least 4 weeks and showed evidence of neovascularization. At 4 weeks, SCC implants showed a trend toward increased PCNA positive cells compared to...

Various concurrency control algorithms diier in the time when connicts are detected, and in the way they are resolved. Pessimistic (PCC) protocols detect connicts as soon as they occur and resolve them using blocking. Optimistic (OCC) protocols detect connicts at transaction commit time and resolve them using rollbacks. For real-time databases, blockages and rollbacks are hazards that increase ...