Minimizing Energy Consumption by Task Consolidation in Cloud Centers with Optimized Resource Utilization

Cloud computing is an emerging field of computation. As the data centers consume large amount of power, it increases the system overheads as well as the carbon dioxide emission increases drastically. The main aim is to maximize the resource utilization by minimizing the power consumption. However, the greatest usages of resources does not mean that there has been a right use of energy.  Various resources which are idle, also consumes a significant amount of energy. So we have to keep minimum resources idle. Current studies have shown that the power consumption due to unused computing resources is nearly 1 to 20%. So, the unused resources have been assigned with some of the tasks to utilize the unused period. In the present paper, it has been suggested that the energy saving with task consolidation which has been saved the energy by minimizing the number of idle resources in a cloud computing environment. It has been achieved far-reaching experiments to quantify the performance of the proposed algorithm. The same has also been compared with the FCFSMaxUtil and Energy aware Task Consolidation (ETC) algorithm. The outcomes have shown that the suggested algorithm surpass the FCFSMaxUtil and ETC algorithm in terms of the CPU utilization and energy consumption

Enhancing the Thermal and Mechanical Properties of Organic-Inorganic Hybrid Nanocomposite Films Based on Poly Lactic Acid/OMMT Nano Clay

Abstract: Organic (PLA) inorganic (OMMT nano clay) hybrid nanocomposite films were fabricated using poly lactic acid (PLA) with various weight percentages (1-3wt%) of organically modified montmorillonite (OMMT) nano clay by means of one step solvent casting method. The thermal, mechanical and water absorption properties were determined as per standard testing methods to determine the optimum percentage of OMMT nano clay within the nanocomposite was investigated. The surface morphology of the organic-inorganic hybrid nanocomposite films was analyzed through XRD, SEM, and TEM surface analytical techniques. The incorporation of OMMT clay in to PLA matrix is found to have enhanced the thermo-mechanical properties. The water absorption and solubility test results also support the data from thermo-mechanical tests. The 2 wt % OMMT clay loaded PLA films showed the best results among all. The obtained results showed that the thermal, mechanical and water absorption properties could be increased significantly with the optimum incorporation of OMMT nano clay in a PLA matrix, in comparision wih the neat PLA

IN VIVO ANTIOXIDANT AND HEPATOPROTECTIVE EFFECTS OF HUGONIA MYSTAX IN PARACETAMOL INDUCED HEPATOTOXICITY IN RATS.

Objectives: The objective of the present work is to study the in vivo anti-oxidant and hepatoprotective effects of Hugonia mystax in paracetamol (PCM)induced hepatotoxicity in rats.Methods: The in vivo anti-oxidant activity of 70% ethanol extract of leaves of H. mystax (HMEE) was assessed by determining the tissue glutathioneand lipid peroxidation (LPO) levels. HMEE 200 and 400 mg/kg p.o. doses and silymarin p.o.100 mg/kg were administered to the PCM challengedrats. The effect of HMEE and silymarin on physical (liver weight and liver volume) and biochemical parameters (serum enzymes [serum glutamicoxaloacetic transaminase (SGOT) and serum glutamate-pyruvate transaminase (SGPT)], alkaline phosphate [ALP], and bilirubin) were measured.Furthermore, histopathological changes in the liver were studied.Results: The HMEE showed in the vivo anti-oxidant activity. Pre-treatment with HMEE for 7 days significantly reduced the elevated biochemicalparameters (SGOT, SGPT, ALP, and bilirubin levels). The hepatic damage in animal pretreated with HMEE was minimal with distinct preservation ofstructures and architectural frame of the hepatic cells.Conclusion: These findings demonstrate the protective nature of HMEE against PCMKeywords: Hugonia mystax, Hepatoprotective, In vivo anti-oxidant, Paracetamol

Cell Biology in Rheumatoid Arthritis

Rheumatoid arthritis (RA) is a systemic autoimmune disease, which affects about 0.33 to 2.65% of the population. In RA Synovium contain various type of immune cell. In which only one cell population cannot cause rheumatoid arthritis that requires more than one cell population. In normal condition, they act as a switch (active or inactive the cell signaling). It controls cell growth, proliferation or metastasizes. In an autoimmune disorder such as rheumatoid arthritis, the immune system mistakenly attacks and destroys the body's cells and tissues. Mostly cells are present in limited numbers in normal human synovium, but in rheumatoid arthritis and other inflammatory joint diseases, this population can expand to constitute 5-20% or more of all synovial cells. Recent investigations in a murine model have demonstrated that cells can have a critical role in the generation of inflammation within the joint. Keyword: Cell Biology in rheumatic arthritis; Dendrite cell; T-cell; Mast cell; Fibroblastic cell; Macrophages cell

The admissible tsunamigenic source region of 24 September 2013 land-based earthquake application of backward ray tracing technique

A minor tsunami of about 50 cm was generated along the coast of Qurayat near Makran subduction zone in the Arabian Sea due to the 24 September 2013 Pakistan earthquake of magnitude 7.6 Mw(mB),although its source was ~200 km far inland of the Makran trench. The real time sea level observation network in the Arabian Sea recorded minor tsunami arrivals. In an attempt to explain the mechanism of this unusual tsunami, we use backward ray tracing technique to map the admissible region of tsunamigenic source. Basically, in this technique the ray equations are integrated starting from the specific locations of tsunami observations, in all possible directions. The known travel time of the initial waves to the respective tide gauges and tsunami buoys is used in this method. Backward wave front is constructed by joining all endpoints of the rays from each of the locations. The region where the envelope of all backward wave fronts converges is considered as the source of the tsunami, which is ~470 km from the earthquake epicentre with the location at 24.8 N and 61.5E. The admissible region identified is an undersea section between Chabahar and Gwadar, where a mud island had appeared subsequent to this earthquake. Convergence of the tsunami source zone and location of the mud island suggest that the sudden uplift must have caused the tsunam

Response of selected scion and rootstock grape (Vitis spp.) genotypes to induced drought stress

Climate change is expected to elevate drought frequency, straining agricultural freshwater resources. Developing drought-tolerant grapevine varieties is crucial. This study examined grape scion and rootstock genotypes under well-watered (WW) and induced-drought (ID) conditions. ID treatment reduced vine length by 11.34-35.15%, with Vitis parviflora, 110R, and Male Hybrid rootstocks showing superior growth. Root length increased under ID, indicating an adaptive moisture-seeking response. The ID treatment led to substantial reduction in leaf count and average leaf area, especially in Flame Seedless (27.71 and 19.07 cm2, respectively). Drought stress elevated chlorophyll a:b ratio, affecting chlorophyll degradation in different genotypes. Significant variations were observed in leaf and root iron (Fe) and zinc (Zn) contents. Enzyme activities particularly peroxidase and polyphenol oxidase especially rose under drought, particularly in V. parviflora (3.39 μM guaiacol min-1 mg-1 protein and 1.33EU/ml/min respectively) likely to be contributing in drought tolerance mechanism. Principal component analysis (PCA) highlighted impact of traits on genotypes, emphasizing V. parviflora, Male Hybrid and Pusa Navrang as superior drought stress tolerant genotypes. Genotype clustering confirmed distinct groupings, while, correlation analysis unveiled intricate trait interactions

Treatment of osteonecrosis of femoral head in young patients by surface replacement of femoral head

Background: Osteonecrosis of hip is a pathological condition that affects usually young adults. Articular surface replacement (ASR) is considered to be a viable option in young patients. The study was done with the aim to analyse and to recommend the management of osteonecrosis of femoral head in young patients by surface replacement of femoral head as ideal procedure.Methods: The present study was conducted in 30 patients with osteonecrosis of the femoral head who attended to OPD at Santhiram Medical College and General Hospital, Nandyal, A.P during the period of April 2016 to September 2017. Articular surface replacement of the femoral head was the surgical procedure done in all the patients. The success of the treatment was analysed by Harris hip scoring.Results: Maximum number of patients (60%) was below 40 years of age. Male dominance (77%) was seen in the study. According to Ficat and Arlet classification 12 cases (40%) were under the category of stage II-B and 18 cases (60%) were of stage III. Postoperatively about 90% of patients had postoperative Harris hip score of >80 points. Surgery was succeeded in 10 hips of stage II-B and 15 hips in stage III. According to Harris hip scoring excellent results were obtained in 15 (50%), good in 12 (40%), fair in 2 (6.67%) and poor result 1 (3.3%) patient.Conclusion: The study concludes that the surface replacement is an anatomical hip arthroplasty with preservations of more than 70% of bone stock of femoral head and the ability of the patients to sit cross-legged and squat, which is the desire of the Indian population