84 research outputs found
Dynamics of Network Formation Processes in the Co-Author Model
No full textThis article studies the dynamics in the formation processes of a mutual consent network in game theory setting: the Co-Author Model. In this article, a limited observation is applied and analytical results are derived. Then, 2 parameters are varied: the number of individuals in the network and the initial probability of the links in the network in its initial state. A simulation result shows a finding that is consistent with an analytical result for a state of equilibrium while it also shows different possible equilibria.Dynamics, Network, Game Theory, Model,Simulation, Equilibrium, Complexity
Tracking JavaScript dependencies on the web
No full textThesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2015.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Title as it appears in MIT Commencement Exercises program, June 5, 2015: Dependency tracking. Cataloged from student-submitted PDF version of thesis.Includes bibliographical references (pages 49-50).Identifying the performance bottlenecks of Web pages is often the first step in reducing page load times. Existing models of Web pages (dependency graphs) ignore the dynamic interactions of JavaScript objects along these critical paths. Current dependency graphs solely include the dependencies that arise from a Web object triggering a new HTTP request. This thesis presents DepTracker, a tool that captures dynamically generated dependencies between JavaScript objects on a Web page. These JavaScript dependencies give a more accurate picture of the network and computational resources contributing to the critical path. DepTracker works in conjunction with an HTTP record-and-replay framework, Mahimahi [17], to track reads and writes to the JavaScript global namespace during actual page loads. We classify dependencies into three categories: write-read, read-write, and write-write. Preserving each of these dependencies maintains the consistency of JavaScript execution on Web pages. For each dependency tracked, DepTracker provides developers with relevant line numbers in the source code, variable names, and values that are assigned and read. This information is particularly useful to Web developers seeking to speed up accesses to their websites by reordering individual objects. We use DepTracker, along with Mahimahi, to expose dependencies on 10 popular Web pages. We find that each Web page includes dependencies between JavaScript objects that are not captured by existing dependency graphs. For our corpus of test sites, we find that graphs that include JavaScript dependencies tracked by DepTracker include 32% and 73% more edges than default dependency graphs, at the median and 95th percentile, respectively.by Ameesh Kumar Goyal.M. Eng
Post treatment kyphosis in thoraco-lumbar burst fractures managed non-operatively and its correlation with pain score
No full text Background: Thoracolumbar burst fractures result from axial compression with rupture of the anterior and medial columns of the vertebral body, with retropulsion of bone fragments into the spinal canal and an increased interpedicular distance. This region is a common site of injury, with an incidence ranging from 10% to 45%. Various treatment methods have been used to manage thoracolumbar fracture. The main goals of treatment are to provide stability, to relieve pain, to restore function, and to reduce the deformities such as kyphosis or lordosis associated with spinal fracture. Various conservative treatments have been recommended including postural reduction, bed rest, body cast, and use of orthoses. Aim: to assess kyphosis post conservative treatment in thoraco lumbar burst fractures and to see correlation between kyphosis and visual analog pain scale in these patients. Methodology: This was a hospital based prospective, before and after interventional study done for the duration of one year. Thirty five subjects with thoraco lumbar burst fracture were included. Results: Initial kyphosis was 12.34±9.36 and final kyphosis was 12.34±9.36. The difference between initial and final kyphosis was statistically insignificant
Present status of monetary compensation to the victims of agricultural accidents in Punjab
No full textCBCT based assessment of crestal bone loss in patients treated with mandibular implant over dentures: An original research study
No full textAim: The exclusive aim of this study was to assess of crestal bone loss in patients treated with mandibular implant over dentures. Authors utilized three dimensional diagnostic tool i.e. cone beam computed tomography (CBCT) for the study. Materials & Methods: The study was conducted in the department of Prosthodontics of the institute wherein systematic sampling procedure was done to select completely edentulous patients. Complete dentures were fabricated with standard manner with compression moulding technique and heat cure acrylic resin. Cone beam computed tomography was completed to assess the bone quality and quantity at desired locations. Total 6 male and 6 female patients were included in the study. Group I has the implants of the right side of the mandible and Group II has implant placed on the left side of the mandible. The twenty four implants were studied in detail for bone losses in post operative phases. at mesial, distal, buccal and lingual sides of the dental implants. P value less than 0.05 was considered significant (p< 0.05). Statistical Analysis and Results: Statistical analysis was completed by statistical software Statistical Package for the Social Sciences (SPSS). 
Development and Application of PP-CNT Composite for Hummingbird Inspired MAV Flapping Wings
No full textMicro Air Vehicles (MAVs) are small unmanned aircrafts which have a maximum size limit of 150 mm in any direction. They can be used for surveillance, reconnaissance, targeting, etc. To perform such missions, MAVs are required to hover. Hummingbirds, having excellent flight characteristics (such as hovering, ability to fly in any direction, ability to produce a reverse camber during upstroke for generating lift in both up-down strokes), have been chosen as the bio-inspiration for wing development. Wings are required to be light, strong and fatigue resistant, to be able to properly flap during flight. Therefore, wing-material becomes a crucial component. An optimization analysis, on the basis of density and fundamental frequency values obtained through Ansys, was done for selecting the wing material. Polypropylene (PP) was observed to have desired properties such as light weight, flexibility, strength, fatigue resistance, good heat and chemical resistance etc. Mixing Carbon Nano Tubes (CNTs) with PP can further increase the strength significantly, making it more suitable for large amplitude flapping. The PP-CNT composites were developed using solution casting method. The films were characterized mechanically (using UTM). The wings were characterized by their structural dynamic properties. The modal analysis of wings was done to obtain natural frequencies and mode shapes. The analysis was aimed to get the fundamental mode in the flapping range (8-15 Hz) of hummingbirds, as resonance increases efficiency. It was also done inside vacuum chamber to observe the effect of air on the natural frequency and modes. The Ansys results were compared with the experiments in vacuum for validation of experimental results. Damping coefficient of wings was also determined. In the end, bio-mimicking of hummingbird wing was also tried by doing some material and structural advancements in the wings
Hypokalemic Quadriparesis Associated with Dengue: A Case Series
No full textDengue is an important viral cause of febrile illness in tropical and subtropical regions. Manifestations may range from an asymptomatic infection to life threatening hemorrhagic fever and shock syndrome. Neurological presentations of this disease are rare. Here, we are presenting a case series of three confirmedcases of dengue fever with hypokalemic paralysis presenting as acute pure motor reversible quadriparesis. A clinician should keep dengue virus associated hypokalemic paralysis in mind while dealing with a case of fever with quadriparesis
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