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Efficient Refinery Scheduling Heuristic in Heterogeneous Computing Systems
Sunita Bansal,Chittaranjan Hota
Journal of Advances in Information Technology , 2011, DOI: 10.4304/jait.2.3.159-164
Abstract: With the emergence of distributed systems, the problem of task scheduling has been arousing attention in recent past. Task scheduling is a NP-complete problem and it is more complicated under the distributed heterogeneous computing environment. To harness the potential of these systems, efficient scheduling algorithms are needed. This paper proposes a new distributed scheduling algorithm for independent tasks to be assigned optimally amongst available machines. The approach works in two phases. In first phase, it assigns a task according to the Min-min heuristic and in second phase, it improves the scheduling by using efficient refinery scheduling heuristic. The refinery heuristic balances the load across all the machines and reduces the make-span time of jobs. The results obtained using the proposed heuristic improves over the existing approaches.
Multi-Objective Intelligent Manufacturing System for Multi Machine Scheduling
Sunita Bansal,Dr. Manuj Darbari
International Journal of Advanced Computer Sciences and Applications , 2012,
Abstract: This paper proposes a framework for Intelligent Manufacturing systems in which the machine scheduling is achieved by MCDM and DRSA. The relationship between perception/knowledge base and profit maximization is being extended. Further for production function
Cavernous lymphangioma of the male breast
Malhotra Purnima,Bansal Anju,Chintamani,Saxena Sunita
Indian Journal of Pathology and Microbiology , 2010,
Dynamic Task-Scheduling in Grid Computing using Prioritized Round Robin Algorithm
Sunita Bansal,Bhavik Kothari,Chittaranjan Hota
International Journal of Computer Science Issues , 2011,
Abstract: Over the years, grid computing has emerged as one of the most viable and scalable alternatives to high performance supercomputing, tapping into computing power of the order of Gigaflops. However, the inherent dynamicity in grid computing has made it extremely difficult to come up with near-optimal solutions to efficiently schedule tasks in grids. The present paper proposes a novel grid-scheduling heuristic that adaptively and dynamically schedules tasks without requiring any prior information on the workload of incoming tasks. The approach models the grid system in the form of a state-transition diagram, employing a prioritized round-robin algorithm with task replication to optimally schedule tasks, using prediction information on processor utilization of individual nodes. Simulations, comparing the proposed approach with the round-robin heuristic, have shown the given heuristic to be more effective in scheduling tasks as compared to the latter.
Half versus full vacuum suction drainage after modified radical mastectomy for breast cancer- a prospective randomized clinical trial[ISRCTN24484328]
Chintamani, Vinay Singhal, JP Singh, Anju Bansal, Sunita Saxena
BMC Cancer , 2005, DOI: 10.1186/1471-2407-5-11
Abstract: 85 FNAC (fine needle aspiration cytology) proven cases of locally advanced breast cancer were randomized. (Using randomly ordered sealed envelops, which were opened immediately before the closure of the wound) in to 50 patients with full vacuum suction (pressure = 700 g/m2) and 35 cases in to half vacuum suction drainage (pressure = 350 g/m2) groups. The two groups were comparable in respect of age, weight, and technique of operation and extent of axillary dissection. Surgery was performed by the same surgical team comprising of five surgeons (two senior and three resident surgeons) using a standardized technique with electrocautery. External compression dressing was provided over the axilla for first 48 hrs and following that patients were encouraged to do active and passive shoulder exercises. The outcomes measured were postoperative morbidity and the length of hospital stay.Statistical methods used: Descriptive studies were performed with SPSS version 10 and group characteristics were compared using student t-test.Half vacuum suction drains were removed earlier than the full suction vacuum suction drains. There was no significant difference in the incidence of seroma formation in the two groups and there was a significant reduction in the total hospital stay in patients with half vacuum suction drainage systems as compared to the full suction drainage group (p < 0.001) without any added morbidity.Half negative suction drains provide an effective compromise between no suction and full or high suction drainage after modified radical mastectomy by reducing the hospital stay and the post operative morbidity including post operative seromas.Suction drainage in the management of mastectomy patients was used for the first time in 1947 [1] and has been found in various studies superior to other methods of fluid evacuation to minimize the dead space. The mechanism proposed is that the suction helps skin flaps to adhere to the chest wall and axilla sealing off all the leak
Isolated colostomy site recurrence in rectal cancer-two cases with review of literature
Chintamani, Vinay Singhal, Anju Bansal, Dinesh Bhatnagar, Sunita Saxena
World Journal of Surgical Oncology , 2007, DOI: 10.1186/1477-7819-5-52
Abstract: First case was a 30-year-old male that had reported with large bowel obstruction due to an obstructing ulcero-proliferative growth (poorly differentiated adenocarcinoma) at the colostomy site after abdomino-perineal resection, performed for low rectal cancer six years previously. Wide local excision with microscopically free margins was performed with a satisfactory outcome. Four years later he presented with massive malignant ascites, cachexia and multiple liver metastasis and succumbed to his disease.Second case was a 47-year-old male that presented with acute large bowel obstruction due to an annular growth (well differentiated adenocarcinoma) in the upper rectum. He was managed by Hartmann's operation and the sigmoid colostomy was closed six months later. Five years following closure of colostomy, he presented with two parietal masses at the previous colostomy site scar, which, on fine needle aspiration cytology were found to be well-differentiated adenocarcinomas of colorectal type. Surgery in the form of wide local resection with free margins was performed. He presented again after five years with recurrence along the previous surgery scar and an incisional hernia and was managed by wide local excision along with hernioplasty. Follow-up of nine years following first surgery is satisfactory.Colostomy site/scar recurrence of rectal carcinoma is rare and could be due to various etiological factors, although the exact causative mechanism is not known. Surgery with microscopically free margins is recommended in the absence of metastatic disease. Stenosis of the stoma is considered as one of the most important contributory factors and should be followed carefully.Metachronous carcinomas rarely occur at the colostomy site and only eight cases have been reported previously. Various factors like adenoma-cancer sequence, stenosing stoma or bile acids have been implicated. Colon cancer presenting as cutaneous metastasis in an old operative scar has also been reported [1-
Information Modeling Of Urban Traffic System Using Fuzzy Stochastic Approach
Manuj Darbari,Niranjan Srivastava,Siddartha Lavania,Sunita Bansal
Lecture Notes in Engineering and Computer Science , 2010,
Qualitative and quantitative dermatoglyphic traits in patients with breast cancer: a prospective clinical study
Chintamani, Rohan Khandelwal, Aliza Mittal, Sai Saijanani, Amita Tuteja, Anju Bansal, Dinesh Bhatnagar, Sunita Saxena
BMC Cancer , 2007, DOI: 10.1186/1471-2407-7-44
Abstract: The study was conducted on 60 histo-pathologically confirmed breast cancer patients and their digital dermatoglyphic patterns were studied to assess their association with the type and onset of breast cancer. Simultaneously 60 age-matched controls were also selected that had no self or familial history of a diagnosed breast cancer and the observations were recorded. The differences of qualitative (dermatoglyphic patterns) data were tested for their significance using the chi-square test, and for quantitative (ridge counts and pattern intensity index) data using the t- test.It was observed that six or more whorls in the finger print pattern were statistically significant among the cancer patients as compared to controls. It was also seen that whorls in the right ring finger and right little finger were found increased among the cases as compared to controls. The differences between mean pattern intensity index of cases and controls were found to be statistically significant.The dermatoglyphic patterns may be utilized effectively to study the genetic basis of breast cancer and may also serve as a screening tool in the high-risk population. In a developing country like India it might prove to be an anatomical, non-invasive, inexpensive and effective tool for screening and studying the patterns in the high-risk population.The genetic component in breast cancer is well established and various genes like (BRCA1 and BRCA2), p-53 etc. have been extensively studied and identified as genetic links [1-3]. Evidence is available suggesting that a family history of breast cancer might be associated with a specific fingerprint pattern [4-8]. Finger print determination is genetic but has been reported to be affected by the environmental factors in the first trimester of pregnancy. After birth the patterns remain more or less constant and hence may serve to study the genetic patterns in any individual [9]. The fingerprints could thus be used for screening or to guide future research
Is drug-induced toxicity a good predictor of response to neo-adjuvant chemotherapy in patients with breast cancer? -A prospective clinical study
Chintamani, Vinay Singhal, JP Singh, Ashima Lyall, Sunita Saxena, Anju Bansal
BMC Cancer , 2004, DOI: 10.1186/1471-2407-4-48
Abstract: 50 cases of locally advanced breast cancer after complete routine and metastatic work up were subjected to trucut biopsy and the tissue evaluated immunohistochemically for apoptotic markers (bcl-2/bax ratio). Three cycles of Neoadjuvant Chemotherapy using FAC regime (5-fluorouracil, adriamycin, cyclophosphamide) were given at three weekly intervals and patients assessed for clinical response as well as toxicity after each cycle. Modified radical mastectomy was performed in all patients three weeks after the last cycle and the specimen were re-evaluated for any change in the bcl-2/bax ratio. The clinical response, immunohistochemical response and the drug-induced toxicity were correlated and compared.Descriptive studies were performed with SPSS version 10 and the significance of response was assessed using paired t-test. Significance of correlation between various variables was assessed using chi-square test and coefficient of correlation calculated by Pearson correlation coefficient.There was a statistically significant correlation observed between clinical, immunohistochemical response (bcl-2/bax ratio) and the drug-induced toxicity.Responders also had significant toxicity while non-responders did not show significant toxicity following neoadjuvant chemotherapy. The chemotherapy-induced toxicity was observed to be a cost effective and reliable predictor of response to neo-adjuvant chemotherapy.Neo-adjuvant chemotherapy (NACT) is an integral part of multi-modality approach in the management of locally advanced breast cancer (LABC). It is required both for the local control (to ensure microscopically free margins during surgery) and distant or systemic control [1-5]. In the past few years, considerable research has been done on the molecular aspects of breast cancer. The recognition that tumor growth rate is a product of the proliferative activity and the rate of cell death has lead to a reappraisal of traditional views of tumor response and resistance to cytotoxic D
Squamous cell carcinoma developing in the scar of Fournier's gangrene – Case report
Chintamani, Manu Shankar, Vinay Singhal, JP Singh, Anju Bansal, Sunita Saxena
BMC Cancer , 2004, DOI: 10.1186/1471-2407-4-16
Abstract: A 65-year-old gentleman presented with a small non-healing ulcer developing on right hemi-scrotum two years after the treatment for Fournier's gangrene. On histological examination it was found to be squamous cell carcinoma. He was successfully managed by surgery in the form of wide local excision and ilio-inguinal lymph node dissection followed by adjuvant radiotherapy and chemotherapy.Squamous cell carcinoma can develop in the scar of Fournier's gangrene after a long delay, which differentiates it from other scar carcinomas or Marjolin's ulcer.Squamous cell carcinoma (SCC) developing in the scar of Fournier's gangrene is rare and has only been described once by Schneider et al [1]. Various other cancers however have been found to be associated with the Fournier's gangrene like colonic cancer, lymphoma, multiple myeloma etc [2,3]. Fournier's gangrene is necrotizing fascitis involving the perineum with occasional extension up the abdominal wall. The usual organism is an anaerobic streptococcus synergistic with some second organism. Early therapy in the form of debridement of dead tissue, intravenous broad-spectrum antibiotics are recommended. The skin cover is obtained either by primary closure of the wound or skin grafting [1-3].Scar carcinoma developing in a chronic scar following burns has been described in the literature as Marjolin's ulcer, however the time lapse before the development of this carcinoma in a chronic scar is considerably longer and sometimes may be up to 50 years [4,5]. Squamous cell carcinoma is a neoplasm of the keratinising cells that show malignant characteristics including anaplasia, rapid growth, local invasion and metastatic potential. The treatment recommended for SCC is surgery in the form of wide local excision and block dissection of the draining lymph nodes [6-9].A 65-year-old non diabetic and otherwise healthy retired bank clerk was treated at our tertiary centre 24 months previously for Fournier's gangrene involving the right scrot
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