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Varsity Volleyball Member of team, 11th, 12th grade 15 hrs/wk, 10 wks/yr Division champions in 2012 Tae-Kwon-Do/Karate Began at age 5, continued until in 11th grade 3 hrs/wk, 50 wks/yr Received black belt in 8th grade, second degree black belt in 10th grade Additional Information Diwakaran Ilangovan The Perception of Vertical Visual Perturbation While Walking Abstract:
Resume Diwakaran Ilangovan Diwakaran Ilangovan, sophomore at Yale College Date of Birth: September 1st, 1995 Diwakaran.firstname.lastname@example.org Kinesiology Research at the University of Maryland Department of Kinesiology 11th – 12th grade 35 hrs/wk, 10 wks/yr Research with Dr. John J. Jeka on the effects of vertical visual perturbations on human body mechanics in walking Analyzing how random vertical oscillations of a subjects surroundings (controlled, in a virtual reality environment) affect the kinematics of the human body while subjects walk on a treadmill. By analyzing the components of a subject’s surroundings separately, we can better understand how the brain coordinates stimuli with responses. o Created random signals for use in the experiment and also created the program that coordinated the virtual reality room’s displays with the signal o Analyzed data of a wide range of fields, including general body movement data, Electromyographical data, and eye movement data o Identified Fourier transforms between the signals and the data o Applied physical and mathematical findings to the biological task – identified key features in the data that pointed to specific responses o Produced data for analysis in future studies involving Parkinson's patients and comparative tests with other types of perturbations Full research paper submitted separately, see abstract below Research paper entered in Intel Science Talent Search, selected as semifinalist on Jan 9, 2013. Physics Team Head captain of school physics team, 11th 12th grades 9th – 12th grade 3hrs/wk, 30 wks/yr USAPhO (USA Physics Olympiad) Semifinalist (Approximately top 400 in the country) 10th, 11th, 12th grades Physics Bowl Regional runner up, 9th grade Math Team Co‐Captain of school math team, 12th grade 9th – 12th grade 3 hrs/wk, 30 wks/yr USAMO (USA Math Olympiad) Qualifier (Approximately top 270 in the country) 10th, 11th, 12th grades AIME (American Invitational Math Examination) Qualifier (Approximately top 5 percent in the country) 7th‐12th grades University of Maryland High School Math Competition Honorable Mention (Approximately top 50 in the state) 9th – 12th grades Member of school PUMaC (Princeton University Math Competiton) A team, 5th, 6th, 2nd place in A division in 10th, 11th, 12th grade respectively Resume Diwakaran Ilangovan PUMaC individual finalist (at least within top 40) in A division 11th,12th grade Member of school HMMT (Harvard MIT Math Tournament) A team, 8th, 9th, 6th place in A division in 10th, 11th, 12th grade respectively Member of school ARML (American Regional Math League) A team, 7th, 9th, 7th in 10th, 11th, 12th Biology Club Co‐founder and Co‐captain of school biology club, 12th grade 5 hrs/wk, 15 wks/yr USABO (USA Biology Olympiad) Qualifier (Approximately top 10%), 11th, 12th grade Computer Science Montgomery Blair High School Computer Systems Operator (SysOp), 11th, 12th grade USA Computing Olympiad (USACO) Silver division, 9th – 12th grade Known languages o Java o C/C++/Objective C o MATLAB o LaTeX Science Bowl Captain, 11th, 12th grade 9th – 12th grade 3 hrs/wk, 20 wks/yr Regional winners, 9th – 11th grade National runner ups, 10th grade Sai Seva Volunteer Work Participant in Hindu volunteer organization to feed the needy in D.C., 11th, 12th grade o 5 hrs/wk, 22 wks/yr o Make and distribute healthy, vegetarian cuisine to the homeless in D.C., including vegetable rice, potato curry, and red kidney bean curry Works in association with the Lions Club Eyeglass recycling center, 11th, 12th grade o 5hrs/wk, 12 wks/yr o Help the Lions Club in recycling of used eyeglasses, including washing, identifying the prescription, and packing for shipment to third world countries. Varsity Volleyball Member of team, 11th, 12th grade 15 hrs/wk, 10 wks/yr Division champions in 2012 Tae‐Kwon‐Do/Karate Began at age 5, continued until in 11th grade 3 hrs/wk, 50 wks/yr Received black belt in 8th grade, second degree black belt in 10th grade Resume Diwakaran Ilangovan The Perception of Vertical Visual Perturbation While Walking Abstract: By using the information our eyes collect from our surroundings, we can better stabilize ourselves and keep in control of both standing and walking. Many studies have been done to test the effects of horizontal and lateral visual motion, but no studies have been done of vertical visual movement. In this study, we observed the effect that random vertical movement of a subject’s surroundings has on the subject while walking on a treadmill, expecting that perhaps a small but measurable response would be produced. The subjects were presented with two different amplitude signals, while walking at 5 kilometers per hour, and their body kinematics were measured. Frequency response functions were calculated, and the gains and phases demonstrate interesting results – there is evidence of down‐weighting, the “ignoring” of high amplitude perturbations that has been documented in other studies, and there are noteworthy patterns in the gains across the frequencies studied. While reactions were stronger in the lower frequencies in the Anterior‐Posterior direction, they were stronger in the higher frequencies in the Medial‐Lateral direction. This is hypothesized to be because higher frequency perturbations are also shorter period perturbations, and so they affect the subject in the span of a single gait cycle. Phase plots show us other interesting patterns, for example an upward movement of the vertical field leads to a forward movement of the body, which would indicate how the body perceives these perturbations. These results together provide a compelling argument that vertical visual feedback is in fact highly important in the maintenance of stability of the body. The findings can be used in future studies that compare the responses of healthy subjects to the responses of pathological walkers, which could lead to the discovery of the causes of several types of walking disorders and corresponding treatments to help the suffering individuals recover.
Perturbation of one subsystem may produce a nonequilibrium state which is then relaxed to an equilibrium state due to the interaction between particles or with a thermal bath.
in other words, a small perturbation in the path of the particle will not change the quantum amplitude as long as the perturbation does not affect the way the tubes cross.
le MI perturbé par l’activité cellulaire (production de sécrétions, déchets engendrés) ou les variations du milieu extérieur (T°) maintient sa stabilité via mécanismes régulateurs (qui détectent et corrigent une perturbation modérée d’un des paramètres du MI) =>
The method linearizes the downward continuation operator and es- 55 tablishes a linear relationship between the model perturbation and image perturbation.
Analyses & Performances des installations photovoltaïques I.
Many-body calculations are often done for model many-particle systems by using a perturbation expansion.
It was shown within the perturbation theory that the state of an itinerant charge carrier is renormalized due to the spin disorder scattering.
 Use first-order perturbation theory to calculate the corrections to the lowest two energy levels for b 6= 0.
14h14 26902 91-08 Trafic normal, pas de perturbation identifiée sur cet itinéraire (vérific ation effec tuée le 1 3 /0 7 /1 3 à 1 1 h1 1 ) * www.ratp.fr/itineraires/fr/ratp/resultat-detaille/start/26%2C+Rue+Aristide+Briand%2C+91400%2C+Orsay/end/29%2C+Avenue+des+Pierrots%2C+91400… 1/4 13/07/13 RATP, transports à Paris et en Ile-de-France :