NooLib - A web application for Research

NooLib is a web application which enables to host and promote your own algorithms for Research. With NooLib, you can easily deposit your programs written in C/C++/Js/Java/Php or Python and transform them into an useful application. Interact smartly with others applications and share your results with people

Detecting all regular polygons in a point set

In this paper, we analyze the time complexity of finding regular polygons in a set of n points. We combine two different approaches to find regular polygons, depending on their number of edges. Our result depends on the parameter alpha, which has been used to bound the maximum number of isosceles triangles that can be formed by n points. This bound has been expressed as O(n^{2+2alpha+epsilon}), and the current best value for alpha is ~0.068. Our algorithm finds polygons with O(n^alpha) edges by sweeping a line through the set of points, while larger polygons are found by random sampling. We can find all regular polygons with high probability in O(n^{2+alpha+epsilon}) expected time for every positive epsilon. This compares well to the O(n^{2+2alpha+epsilon}) deterministic algorithm of Brass.Comment: 11 pages, 4 figure

Arteterapia en el final de la vida

Art therapy allows a particularly valuable biographical creative approach at the end of life. The person concerned has multiple needs - physical, emotional, social and spiritual - that only a holistic attention may claim to embrace, as contemplated in the philosophy of palliative care. The art therapist is integrated into the interdisciplinary team to help to alleviate suffering and accompany the patient and his family. We present here the theoretical foundations and methodology of the intervention as well as the health framework in which it is included.El arteterapia permite una aproximación creativa biográfica particularmente valiosa en la etapa final de la vida. La persona enferma presenta múltiples necesidades – físicas, emocionales, sociales y espirituales – que solo una atención holística puede pretender abarcar, tal como lo contempla la filosofía de los cuidados paliativos. El arteterapeuta integrado en el equipo interdisciplinar contribuye a aliviar y acompañar el sufrimiento del paciente y su familia. Se presentan aquí las bases teóricas y la metodología de la intervención, así como el marco sanitario en el cual se inscribe

Rétention linguistique et changement social à Mistissini

Cette note de recherche vise à exposer des contextes interactifs (langues d’usage à la maison et en forêt) qui motivent la rétention de la langue crie à Mistissini, communauté crie de l’est de la baie James, et ce, en dépit des importants changements socio-économiques des dernières décennies.The aim of this research note is to expose interactive contexts (language use at home and in the bush) that motivate linguistic retention in Mistissini, an Eastern James Bay Cree community, in spite of important socioeconomic changes from the last decades

Research at the UWC: Understanding the Diversity of Student's Experiences

A pilot study redesigns data collection to reflect increasing diversity in student populations and to improve writing center consultations and campus outreach efforts. The Undergraduate Writing Center (UWC) at The University of Texas at Austin (UT) performs roughly 11,500 writing consultations each year. In addition to providing one-on-one consultations with undergraduate students, a considerable amount of activity happens behind the scenes. For example, project groups are a mainstay of the UWC and are an integral aspect of work we do beyond consulting. Up until now, the Research & Publications Project Group has primarily analyzed data the UWC collects from students’ Intake Forms. The Intake Form asks students to report basic information regarding their course prefix, their instructor’s information, their assignment, their writing process, and their ESL status. While these forms lend valuable information about the classes for which students request to receive help and the types of problems students encounter with their writing, there is a tremendous amount of information we do not collect (and therefore do not know) about the students who walk through our doors.University Writing Cente

Charles Marcellis and Arthur Vierendeel: a century of Belgian bridge building (1835-1940)

The Belgian bridge builders Charles Marcellis (1798-1864) and Arthur Vierendeel (1852-1940) were jack-of-all-trades in the 19th century, but both were mostly known as bridge designers, trying to have a grip on new structural possibilities. Though the mechanical behaviour of their bridges is very different, Tom Peters already noticed the visual resemblances between Marcellis' girder and box bridges made out of pierced cast-iron plates (1835-1860) and Vierendeel's development of the bridge type named after him (1890-1940). The non-simultaneous yet very similar evolution of these two characters is a duet with consonants and dissonances. Marcellis was an industrialist whereas Vierendeel was an engineer, professor and self-made art critic. Marcellis had imported the idea of cast-iron girder and box bridges from England (e.g. from Fairbairn and Stephenson) and he did not shrink from calling this a Belgian system to erect bridges. Vierendeel on the other hand, after having seen bridge collapses where the diagonals were hardly deformed, developed a simplified arithmetic method to calculate a beam that consists only of a series of rectangular frames, a system that still finds use in design problems today. This recurring pattern of engineering feats is the connecting thread between Marcellis and Vierendeel in this paper. Within a time frame of 100 years both men stood in a fascinating period on new materials (transition from cast iron to steel) and new calculation methods (transition from elementary formulas and trial-and-error testing to full understanding of secondary stresses and mechanical behaviour of materials)