A Novel Heuristic for a Class of Independent Tasks in Computational Grids

Scheduling is an essential layer in grid environment. Now-a-days, the computational grids are the important platform for job scheduling. The performance of the computational grids can be improved using an ecient scheduling heuristic. A user submits a job to grid resource broker. The broker is responsible for dividing a job into a number of tasks. It maps the task and the resource to nd a perfect match. The main goal is to minimize the processing time and maximize the resource utilization. Mode of scheduling plays the key role in Grid Scheduling. In Grid, mode of scheduling is of two types: immediate and batch mode. Immediate mode takes one after another task in a serial sequence. But, batch mode takes in a random sequence. Task assignment is mainly based on the mode selection. Task may be assigned to the resource in a batch or as soon as it arrives. In this thesis, we have introduced three immediate mode heuristics such as First-DualMake, Best- DualMake and Worst-DualMake (dened as X-DualMake) and a new mode of heuristic called as intermediate mode (or Multi- batch mode). In our immediate mode scheduling heuristics, jobs are scheduled based on resource idle time. Intermediate mode considers random arrival of task in a multi-batch sequence. Alternatively, arrival of tasks are unknown in this mode. Here, we have taken a range of task arrival for simplicity. This mode is introduced to be a part of the real life aspects. The eight immediate mode heuristics are simulated and the experimental results are discussed. The two existing approaches: Min-Min and Max-Min are experimented with intermediate mode scheduling. We have taken two performance measures: makespan and resource utilization to evaluate the performance

Towards Benchmarking Power-Performance Characteristics of Federated Learning Clients

Federated Learning (FL) is a decentralized machine learning approach where local models are trained on distributed clients, allowing privacy-preserving collaboration by sharing model updates instead of raw data. However, the added communication overhead and increased training time caused by heterogenous data distributions results in higher energy consumption and carbon emissions for achieving similar model performance than traditional machine learning. At the same time, efficient usage of available energy is an important requirement for battery constrained devices. Because of this, many different approaches on energy-efficient and carbon-efficient FL scheduling and client selection have been published in recent years. However, most of this research oversimplifies power performance characteristics of clients by assuming that they always require the same amount of energy per processed sample throughout training. This overlooks real-world effects arising from operating devices under different power modes or the side effects of running other workloads in parallel. In this work, we take a first look on the impact of such factors and discuss how better power-performance estimates can improve energy-efficient and carbon-efficient FL scheduling.Comment: Machine Learning and Networking Workshop, NetSys 202

WallStreetBets Beyond GameStop, YOLOs, and the Moon: The Unique Traits of Reddit’s Finance Communities

While the effect of established social media on stock markets has been thoroughly investigated, the recent surge in retail investing and the emergence of different finance-related Reddit communities with unique new traits have led to new research questions. In this work, we aim to understand the linguistic and thematic characteristics and differences of the largest financial Reddit communities, r/WallStreetBets, r/stocks, and r/investing. Using different techniques for the analysis of linguistic features and topic modeling, we identify keywords and phrases that are most prominent in each community and determine each community’s thematic focus and risk affinity. An analysis of users that post on all of these communities confirm these findings, as they appear to adapt to the respective target audience when posting. The stock returns for each community prove consistent with their respective risk profile. Overall, we conclude that understanding these communities can help investors in making more informed investment decisions

Prevalence of mental nerve injury in facial fractures: a 3 year retrospective study

Background: Mandibular fracture is the most common facial bone fracture. Fractures occurring at the Para symphysis region frequently results in mental nerve injury, due to which anaesthesia or paraesthesia of the skin and mucous membrane within the distribution of mental nerve may be observed and may cause reduced quality of life for patients. Aim of this study was to retrospectively analyse and evaluate the prevalence rate of mental nerve injury in patients that reported to the department of oral and maxillofacial surgery, managed conservatively or open reduction and internal fixation method during the last 3 yearsMethods: Patients with neurosensory deficit following para symphysis fracture were recorded, statistically analyzed and results and observation were prepared from it.Results: The patients with age group 21-30 diagnosed with para symphysis fracture constituted 25% of all operated case and were found to be more associated with midface and angle fracture. Etiology behind the trauma was mostly as a result of RTA. Neurosensory disturbances as a result of mental nerve injury were found to be associated in 20.89% case, out of which in most of the cases, it gradually recovered within a duration of 7-15 days.Conclusions: RTA’s have been a prime cause for para symphysis fracture, which may at times accompany neurosensory deficit following trauma or may occur post-surgery, has been found to cause troublesome sequelae and reduced quality of life. Moreover, further research study needs to be carried out over a larger time span having a larger group of patients

TEICOPLANIN RESISTANCE IN GRAM-POSITIVE BACTERIAL ISOLATE: AN EMERGING THREAT

Objectives: Development of antimicrobial resistance in microorganism isolated from blood stream infection constitutes a major concern about their treatment. Teicoplanin is a glycopeptide antibiotic used in the treatment of infection caused by Gram-positive bacteria. This study was planned to determine Teicoplanin resistance in the Central India and recommend policy changes for prevention of the future resistance to the higher antibiotics. Methods: A total of 1855 septicemia suspected blood samples were studied. The blood culture samples were processed and identified in the microbiology laboratory according to the Clinical and Laboratory Standards Institute guidelines. Antibiotic susceptibility test was done using Kirby B disk diffusion method. Results: About 39.5% of blood culture samples showed positive growth for organism. We observed high teicoplanin resistance (29.5%) among Gram-positive isolates, predominantly (53%) in the Enterococcus species. Conclusion: Teicoplanin resistance has emerged tremendously in the present study. Hence, attention is required about this serious issue otherwise very limited choice of antibiotics will be available for treating infections in the future

Evaluation of efficacy of submucosal tramadol after mandibular third molar surgery: a prospective pilot study

Background: Surgical extraction of mandibular third molar is one of the most commonly performed procedure in oral and maxillofacial surgery. Its removal causes swelling, trismus, and moderate to severe pain which can be treated with various NSAID’s drugs, which have numerous side effects and gastric disturbances. In order to bypass such disturbances, Tramadol may be considered as an alternative for such patients. The aim of the study was to evaluate analgesic efficacy of submucosal tramadol and its implication over swelling and mouth opening after mandibular third molar surgery.Methods: This is a prospective study where in after post-surgical extraction of mandibular third molar, efficacy of submucosal injection of tramadol is evaluated in terms of pain and its implication over swelling and mouth opening.Results: The present study suggested there was statistically significant VAS score for pain after submucosally injecting tramadol post-surgical extraction of mandibular third molar in the following visits- 4hourly, 8hourly and 24hourly. In respect to swelling, statistically significant values was noted during 24hr and 72 h our post extraction. Also in case of mouth opening, statistically significant values were found 24 hourly.Conclusions: The present pilot study concluded that submucosal tramadol post mandibular third molar extraction has been effective in reducing pain, limiting post-extraction swelling and less impacting mouth opening by inducing less complications thereby bypassing gastric disturbances

Prospective study of management of long bone fracture by intra-medullary elastic nailing in children

Background: The treatment of long bone fractures in children from 6 to 14 years is a challenging scenario. Titanium elastic nail (TEN) fixation was originally meant as a gold standard treatment method for femoral fractures, but was gradually applied to other long bone fractures in children, because it represents a middle path between conservative and surgical modality.Methods: In the present study paediatric patients in the age group of 6 to 14 year with long bone fractures to be treated with TEN in the Department of Orthopaedics were admitted to MGM Hospital (Kamothe) were selected. A total of 30 patients consenting to undergo this study were subjected for treatment after screening using the inclusion and exclusion criteria.Results: The mean age of the patients was 9.67±2.68 years. There was male preponderance (63.3%). In our study, RTA was observed to be the main cause of fracture (80%) whereas 20% fractures were due to fall. In our study, 50% patients had fracture of radius ulna followed by fracture of tibia 23.3%, femur (23.3%), and humerus (3.3%). The mean time to union was 5.30±1.06 weeks.Conclusions: TEN seems to be simple, biocompatible, more physiological, reliable and effective method of treatment of all long bone shaft fractures in 6 to 14 years old children. It is a rapid, safe and simple procedure with advantages of short operative time, minimal blood loss, shorter hospital stays early union, allowing early mobilization and early return to function with minimal complications

A prospective study of management of distal end of radius fracture in children

Background: Distal end radius (DER) fractures represents one of the common fractures in the paediatric age group. Most of this injury are managed by closed reduction and casting. We investigated the degree to which the clinical and radiographic follow-ups reveal complications that lead to a change in management of the un-manipulated distal radius fractures in children less than 14 years of age. We determined the frequency and type of complications registered during treatment, and assessed the stability of the different fracture types.Methods: Study includes examination of 30 patients with closed DER fractures who were admitted in tertiary care centre between August 2016 to April 2018.Results: Closed reduction and casting was modality of treatment in 40%, casting was done in 33.3% and closed reduction and k wire were done in 26.7%. In patients with closed reduction and k wire slab was given. Gartland and Werley’s scoring system was used and found that 60% patients have 0 score, 30% have 1 score, 6.7% have 2 score and 3.3% have 3 score. 29 patients had excellent result and 1 patient had fair result.Conclusions: In this study of management of DER fracture in children with different modality of treatment, we noted that if it is an undisplaced fracture, can be managed with casting. If it is displaced fracture and reduction is achieved then closed reduction and casting can be done. If displacement is more than 50% of bone diameter then closed reduction and k wire can be done