A Novel Method for Supporting Locality in Peer-to-Peer Overlays Using Hypercube Topology

2010 ◽  
Author(s):  
Mohammed Gharib ◽  
Zeynab Barzegar ◽  
Jafar Habibi
Keyword(s):  
Peer To Peer ◽  
Novel Method ◽  
Hypercube Topology

scholarly journals A supervised method for unbiased peer-to-peer evaluation. An experience with engineering students

2015 ◽  
Vol 2 (2) ◽  
pp. 65
Author(s):  
Francisco J. Simois
Keyword(s):  
Engineering Students ◽  
New Technologies ◽  
Assessment Method ◽  
Peer To Peer ◽  
Engineering Problem ◽  
Peer Evaluation ◽  
Continuous Evaluation ◽  
Engineering Degree ◽  
Novel Method ◽  
Interesting Alternative

<p class="Textoindependiente21">Continuous evaluation is an assessment method which has some appealing advantages but also implies an increase of the teacher’s efforts and it may be unfeasible if the class is large.</p><p class="Textoindependiente21">Of course, new technologies may be used to implement automatized evaluations, but it is usually quite difficult to carry them out when a complex task like an engineering problem is to be judged.</p><p class="Textoindependiente21">An interesting alternative is a peer-to-peer evaluation, that is, the students themselves review their works. Nevertheless, one drawback is that it is likely that the grades are overrated. Although this is a well-known problem, not much effort is usually put into solving it. In this work we propose a novel method to limit this inconvenience, which is that the teacher randomly supervises a fraction of the students tasks.</p><p class="Textoindependiente21">In this paper we present the results of such an experience carried out in a Signal Processing course within a Robotics Engineering degree. More precisely, four different sets of problems were solved by the teacher in class. At the same time, they were peer-to-peer reviewed by the students, following the indications given by the professor. Later, when the random supervision is performed, a penalty is applied if a major flaw in a student’s evaluation is detected. Thanks to this strategy, the scores tended to be more and more accurate according to the teacher’s criteria.</p><p class="Textoindependiente21">Finally, the results of a survey anonymously fulfilled by the students to assess this experience are also presented.</p>

scholarly journals Twin Talk Series: A novel method to foster peer‐to‐peer pedagogical training

2018 ◽  
Vol 32 (S1) ◽  
Author(s):  
Ashley K. Brown ◽  
Gabriel Martínez‐Gálvez ◽  
Kirsten E. Coffman ◽  
William E. Matchett ◽  
Bruce F. Horazdovsky
Keyword(s):  
Peer To Peer ◽  
Pedagogical Training ◽  
Novel Method

scholarly journals Certificate Path Verification in Hierarchical and Peer-to-Peer Public Key Infrastructures

2010 ◽  
Vol 1 (1) ◽  
pp. 77-92
Author(s):  
Balachandra ◽  
Prema K.V.
Keyword(s):  
Spanning Tree ◽  
Peer To Peer ◽  
Construction Method ◽  
Public Key ◽  
Security Services ◽  
Multiple Paths ◽  
Novel Method ◽  
Trust Models ◽  
Development And Validation ◽  
Reverse Path

“Authentication of users in an automated business transaction is commonly realized by means of a Public Key Infrastructure(PKI). A PKI is a framework on which the security services are built. Each user or end entity is given a digitally signed data structure called digital certificate. In Hierarchical PKI, certificate path is unidirectional, so certificate path development and validation is simple and straight forward. Peer-to-Peer(also called Mesh PKI) architecture is one of the most popular PKI trust models that is widely used in automated business transactions, but certificate path verification is very complex since there are multiple paths between users and the certification path is bidirectional. In this paper, we demonstrate the advantage of certificate path verification in Hierarchical PKI based on forward path construction method over reverse path construction method with respect to the time requirement. We also propose a novel method to convert a peer-to-peer PKI to a Depth First Search(DFS) spanning tree to simplify the certificate path verification by avoiding multiple paths between users, since the DFS spanning tree equivalent of peer-to-peer PKI contains only one path between any two Certification Authorities.

scholarly journals A Novel Method to Evaluate Cooking Skills: Determining the Efficacy of a Peer-to-Peer Nutrition Education Program

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 299-299
Author(s):  
Jennifer White ◽  
Joselin Berdugo ◽  
Marie Olguin ◽  
Nelida Duran ◽  
Dena Herman
Keyword(s):  
Food Safety ◽  
Nutrition Education ◽  
Education Program ◽  
Peer To Peer ◽  
Food Groups ◽  
Program Outcomes ◽  
Cooking Skills ◽  
Novel Method ◽  
Nutrition Education Program ◽  
Method Of Evaluation

Abstract Objectives An evaluation was conducted of a peer-to-peer nutrition education program, Reinventing Integrative Cooking Opportunities (RICO), to determine if it is reaching its aims to increase self-efficacy in the areas of knife skills, hygiene practice, and recreating recipes in the kitchen by testing a novel method of assessment utilizing a group-based cooking competition. To determine the skill level and information retained by participants while encouraging participant engagement. Methods Latino adolescents (n = 16), ages 11–17, were provided with a recipe previously implemented during the six-week RICO program cycle. One evaluator was assigned per team to observe skills throughout the competition. Participants worked independently and were only corrected to ensure participant safety. Evaluation criteria scored during the assessment included food safety, knife safety, knife skills, hygiene, recipe completion, and flavor. Participants completed a written activity that was used to measure knowledge of food groups and the importance of ingredients used in the recipe retained from previous RICO lessons. Results Participants were scored on a scale from 1 to 5, where 1 = not acceptable to 5 = very acceptable. Results showed an overall mean score of 4.0 and 5.0. The highest scored skill observed during the evaluation was food safety (mean 4.75, range 1.0), while the lowest score was knife skills (mean 3.50, range 4.0). Recipe completion was a strength for all groups (mean 4.25, range 2.0), while flavor and hygiene practices were two areas where groups struggled (mean 3.75, range 3.0). This method of evaluation also revealed areas of improvement for RICO, namely, revision of lessons to provide better retention of cooking skills and nutrition knowledge. The completion rate of the written portion of the evaluation was 75%. Analysis of written answers shows that 25% understood the directions provided, while 75% did not. These results demonstrate the need to correct the evaluation with more precise instructions for how to fill out the activity sheet for participants.  Conclusions This study demonstrates a direct observation method for data collection that kept participants engaged while providing insight into program outcomes. Funding Sources The Office of Community Engagement at the researcher's institution provided funding.

The removal and morphology of intact biofilms from implanted venous access devices

1995 ◽  
Vol 53 ◽  
pp. 1020-1021
Author(s):  
M.A. Gregory ◽  
G.P. Hadley
Keyword(s):  
Patient Selection ◽  
Surgical Oncology ◽  
Venous Access ◽  
Common Procedure ◽  
Indwelling Catheters ◽  
Careful Patient ◽  
Novel Method ◽  
The Subject ◽  
Vascular Catheters ◽  
Venous Access Devices

The insertion of implanted venous access systems for children undergoing prolonged courses of chemotherapy has become a common procedure in pediatric surgical oncology. While not permanently implanted, the devices are expected to remain functional until cure of the primary disease is assured. Despite careful patient selection and standardised insertion and access techniques, some devices fail. The most commonly encountered problems are colonisation of the device with bacteria and catheter occlusion. Both of these difficulties relate to the development of a biofilm within the port and catheter. The morphology and evolution of biofilms in indwelling vascular catheters is the subject of ongoing investigation. To date, however, such investigations have been confined to the examination of fragments of biofilm scraped or sonicated from sections of catheter. This report describes a novel method for the extraction of intact biofilms from indwelling catheters.15 children with Wilm’s tumour and who had received venous implants were studied. Catheters were removed because of infection (n=6) or electively at the end of chemotherapy.

Experten aus Erfahrung

PADUA ◽  
2016 ◽  
Vol 11 (1) ◽  
pp. 65-71 ◽  
Author(s):  
Jörg Haslbeck
Keyword(s):  
Soziale Unterstützung ◽  
Peer To Peer

Zusammenfassung. In der Gesundheitsversorgung von Menschen, die mit chronischen Krankheiten leben, wird soziale Unterstützung durch «peers» immer bedeutsamer, d. h. durch Personen, die aufgrund ähnlicher Krankheits- und Alltagserfahrungen in einer vergleichbaren Lebenssituation sind. Welche Potenziale, Chancen sowie Grenzen hat «peer-to-peer healthcare» im Kontext von Selbstmanagementförderung? Der Beitrag diskutiert dies anhand von Erfahrungen mit dem Stanford Kursprogramm «Gesund und aktiv leben».

Longitudinal Changes in Individual BrainAGE in Healthy Aging, Mild Cognitive Impairment, and Alzheimer’s Disease

GeroPsych ◽  
2012 ◽  
Vol 25 (4) ◽  
pp. 235-245 ◽  
Author(s):  
Katja Franke ◽  
Christian Gaser
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Healthy Aging ◽  
Brain Aging ◽  
Elderly Subjects ◽  
Additional Increase ◽  
Longitudinal Changes ◽  
Novel Method ◽  
The Brain

We recently proposed a novel method that aggregates the multidimensional aging pattern across the brain to a single value. This method proved to provide stable and reliable estimates of brain aging – even across different scanners. While investigating longitudinal changes in BrainAGE in about 400 elderly subjects, we discovered that patients with Alzheimer’s disease and subjects who had converted to AD within 3 years showed accelerated brain atrophy by +6 years at baseline. An additional increase in BrainAGE accumulated to a score of about +9 years during follow-up. Accelerated brain aging was related to prospective cognitive decline and disease severity. In conclusion, the BrainAGE framework indicates discrepancies in brain aging and could thus serve as an indicator for cognitive functioning in the future.

Sign in / Sign up

Export Citation Format

Share Document