Cognitive Symmetric Key Cryptographic Algorithm Kannan, Y. R. A.; Prasad, S. Aravind; Varalakshmi, P.
Advances in Computer Science and Information Technology. Computer Science and Engineering
Book Chapter
Today, Cryptographic schemes play a major role in storage, retrieval and transfer of data and code in a secured manner. The major factors which determine the efficiency of a cryptographic system are ...computational speed, level of security provided, cost effectiveness and key size of the algorithm. Choosing the optimal bit size for keys in encryption and decryption algorithm is necessary for the efficient computation of the algorithm and bit size of the key is directly proportional to the complexity of the algorithm and in turn cost of the encryption and decryption algorithm. In this paper, we propose a novel cost-effective small key size symmetric key algorithm which is suitable to all sizes of data and all kinds of data such as audio and video because of its low key size and high computational speed.
Dynamic Voltage Scaling (DVS) has been a key technique in exploiting the hardware characteristics of processors to reduce energy dissipation by lowering the supply voltage and operating frequency. As ...applications become increasingly sophisticated and processing power increases, the most serious limitation on these devices is the available battery life. This paper presents a low-power FPGA system with multiple supply voltage. The critical path of data arrival of the asynchronous architecture can be easily detected by detecting the change of the data's phase. Logic blocks on the non-critical path are autonomously switched to a lower supply voltage to reduce the power consumption. A novel DVS algorithm is presented, so that supply voltage to each logic block is made self-adaptive to the workload and data path, so as to minimize the power consumption without system performance degradation and been demonstrated using the FPGA system, a digitally adjustable DC-DC regulator and a power aware operating system. The simulations results show that up to 60% less energy is consumed with DVS than with a fixed supply voltage.
Notice of Violation of IEEE Publication Principles "A Novel Dynamic Voltage Scaling Technique for Low-Power FPGA Systems" by V.L. Sreenivaas, D.Aravind Prasad, M. Kamalanathan, V.Vinith Kumar, S. Gayathri, M. Nandini in the 2010 International Conference on Signal Processing and Communications (SPCOM), 2010, pp. 1 - 5 After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication Principles. This paper contains significant portions of original text from the paper cited below. The original text was copied with insufficient attribution (including appropriate references to the original author(s) and/or paper title) and without permission. Due to the nature of this violation, reasonable effort should be made to remove all past references to this paper, and future references should be made to the following article: "Architecture of a Low-Power FPGA Based on Self-Adaptive Voltage Control" by Shota Ishihara, Zhengfan Xia, Masanori Hariyama, Michitaka Kameyama in the 2009 International SoC Design Conference (ISOCC), 2009, pp. 274 - 277
The Penn Discourse Treebank (PDTB) was released to the public in 2008. It remains the largest manually annotated corpus of discourse relations to date. Its focus on discourse relations that are ...either lexically-grounded in explicit discourse connectives or associated with sentential adjacency has not only facilitated its use in language technology and psycholinguistics but also has spawned the annotation of comparable corpora in other languages and genres.
Given this situation, this paper has four aims: (1) to provide a comprehensive introduction to the PDTB for those who are unfamiliar with it; (2) to correct some wrong (or perhaps inadvertent) assumptions about the PDTB and its annotation that may have weakened previous results or the performance of decision procedures induced from the data; (3) to explain variations seen in the annotation of comparable resources in other languages and genres, which should allow developers of future comparable resources to recognize whether the variations are relevant to them; and (4) to enumerate and explain relationships between PDTB annotation and complementary annotation of other linguistic phenomena. The paper draws on work done by ourselves and others since the corpus was released.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, UILJ, UKNU, UL, UM, UPUK
The endothelium is a critical regulator of vascular homeostasis, controlling vascular tone and permeability as well as interactions of leukocytes and platelets with blood vessel walls. Consequently, ...endothelial dysfunction featuring inflammation and reduced vasodilation are considered central to cardiovascular disease (CVD) pathogenesis and have become a therapeutic area of focus. Type II endothelial cell (EC) activation by stress-related stimuli such as tumor necrosis factor-α (TNF-α) initiates the nuclear factor-κB (NF-κB) signaling pathway, a master regulator of inflammatory responses. Because dysregulated NF-κB signaling has been tightly linked to several CVDs, EC-specific inhibition of NF-κB represents an attractive pharmacological strategy. As accumulating evidence highlights the clinical benefits of tea catechin for multiple diseases including CVDs, we sought to determine whether the tea catechin epigallocatechin gallate (EGCG) that displays antioxidative, anti-inflammatory, hypolipidemic, anti-thrombogenic, and anti-hypertensive properties offers protection against CVDs by suppressing the canonical NF-κB pathway. Our findings indicate that EGCG downregulates multiple components of the TNF-α-induced NF-κB signaling pathway and thereby reduces the consequent increase in inflammatory gene transcription and protein expression. Furthermore, EGCG blocked type II EC activation, evidenced by diminished EC leakage and monocyte adhesion in EGCG-treated cells. In summary, our study advances knowledge of EGCG's anti-inflammatory effects on the NF-κB pathway and hence its benefits on endothelial health, supporting its therapeutic potential for CVDs.
Negotiating anti-Tuberculosis treatment is a complicated process comprising daily consumption of multiple medications at stipulated times and dosages, as well as periodic follow-ups and ...investigations, may not be uniform for all Tuberculosis (TB) patients and some may perform better than others. In this context, we conducted a study in Thiruvananthapuram district, Kerala to ascertain the ability of those suffering from TB to follow treatment guidelines. This study used an embedded mixed methods design. We collected cross-sectional data from 135 drug sensitive pulmonary TB patients aged 18 years or above in Thiruvananthapuram, Kerala using a structured questionnaire to get the proportion of patients following all treatment guidelines. We also did eight in-depth interviews (four men and four women) from within the survey sample. The in-depth interviews were inductively analysed for getting deeper insights about reasons for the choices people made regarding the treatment guidelines. Written informed consent was taken from all participants and the study was implemented after the necessary programmatic and ethical clearances. Of the 105 men and 30 women studied, uninterrupted daily drug consumption was reported by 80 persons (59.3%, 95% Confidence Intervals (CI) 50.8-67.2%). Overall, 38 (28.2%, 95% CI 21.3%-36.3%) persons were able to follow all seven aspects of advised guidelines. Living in an extended/ joint family (Adjusted Odds ratio (AOR) 2.6, 95% CI 1.1-6.0), approximate monthly household expenditure of over rupees 13,500 (AOR 2.9, 95% CI 1.3-6.7) and no perceived delay in seeking initial care (AOR 3.2, 95% CI 1.2-8.7) were significantly associated with following all aspects of treatment guidelines. In-depth interviews revealed reflective treatment related behaviours were influenced by bodily experiences, moral perceptions, social construct of TB, programmatic factors and substance use. Sometimes behaviours were non-reflective also. Programmatic stress was on individual agency for changing behaviour but capability and opportunity for these were influenced social aspects like stigma, gender roles and poverty. TB patients live amidst a syndemic of biomedical and social problems. These problems influence the capabilities and opportunities of such TB patients to follow treatment guidelines. Interventions should balance focus on individual agency and social abd economic factors.
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