CAREER IDENTITY AND MENTORING IN FIRST YEAR PHYSICS UNDERGRADUATES

The purpose of this study is to design and evaluate the effectiveness of a mentoring program run for first year physics students. The mentoring program was initiated to address the low student retention in undergraduate physics courses. Preliminary surveys found a mismatch between student career identity and perceived relevance of physics. Mentoring has been shown to have a positive effect on mentees’ science identity, retention, and career planning by promoting science outcomes for the mentees and positive attitudes about science. This has been particularly effective for students belonging to underrepresented groups in science, who typically have lower science identity. Students became acquainted with the 20-member mentoring panel in a flash mentoring event. Mentors were partnered with two students and asked to spend an average of fifteen minutes per week in discussion with the students. Discussion topics were emailed weekly. Some of our learnings from this pilot program included doing a post questionnaire during class time to ensure a high completion rate. The main gains cited by mentees were increased motivation to study, new vision of future career and employment and an increase in the number of career relevant skills they would learn through their course

STUDIO DEL TRATTAMENTO TERMICO DI ACCIAI RAPIDI PER CILINDRI DI LAMINAZIONE A CALDO

In questo lavoro si propone lo studio del trattamento di tempra e rinvenimento di due acciai rapidi prodotti per colata centrifuga. La microstruttura dei materiali allo stato grezzo di colata è data da un reticolo più o meno interconnesso di carburi primari, in percentuale prossima al 10% in volume e da una matrice costituita da martensite e bainite. Le curve CCT evidenziano per entrambi un naso bainitico al di sotto dei 400°C per velocità di raffreddamento inferiori a 10°Cs-1. Gli acciai sono stati trattati termicamente secondo il processo impiegato a livello industriale. L’influenza della temperatura di austenitizzazione è stata valutata aumentando tale parametro da 1030 fino a 1200°C. Le relative curve di rinvenimento evidenziano un aumento sia della temperatura che della durezza di picco secondaria, differente nei due materiali considerati, indicando un effetto benefico sulla resistenza a caldo e la necessità di un rinvenimento a temperatura superiore per eliminare completamente l’austenite residua. In prossimità della temperatura più elevata (1200°C) si assiste alla rifusione di eutettici, individuando così in questo valore di temperatura un limite processuale invalicabile. Anche il tempo di austenitizzazione mostra un effetto sulla durezza dopo tempra correlabile alla differente propensione dei due materiali alla risolubilizzazione dei carburi

The health of women and girls determines the health and well-being of our modern world: A White Paper From the International Council on Women's Health Issues

The International Council on Women's Health Issues (ICOWHI) is an international nonprofit association dedicated to the goal of promoting health, health care, and well-being of women and girls throughout the world through participation, empowerment, advocacy, education, and research. We are a multidisciplinary network of women's health providers, planners, and advocates from all over the globe. We constitute an international professional and lay network of those committed to improving women and girl's health and quality of life. This document provides a description of our organization mission, vision, and commitment to improving the health and well-being of women and girls globally

Superquadric-Based Object Recognition

This paper proposes a technique for object recognition using superquadric built models. Superquadrics, which are three dimensional models suitable for part-level representation of objects, are reconstructed from range images using the recover-and-select paradigm. Using an interpretation three, the presence of an object in the scene from the model database can be hypothesized. These hypotheses are verified by projecting and re-fitting the object model to the range image which at the same time enables a better localization of the object in the scene

Small bowel carcinomas in celiac or Crohn's disease: Distinctive histophenotypic, molecular and histogenetic patterns

Non-familial small bowel carcinomas are relatively rare and have a poor prognosis. Two small bowel carcinoma subsets may arise in distinct immune-inflammatory diseases (celiac disease and Crohn's disease) and have been recently suggested to differ in prognosis, celiac disease-associated carcinoma cases showing a better outcome, possibly due to their higher DNA microsatellite instability and tumor-infiltrating T lymphocytes. In this study, we investigated the histological structure (glandular vs diffuse/poorly cohesive, mixed or solid), cell phenotype (intestinal vs gastric/pancreatobiliary duct type) and Wnt signaling activation (β-catenin and/or SOX-9 nuclear expression) in a series of 26 celiac disease-associated small bowel carcinoma, 25 Crohn's disease-associated small bowel carcinoma and 25 sporadic small bowel carcinoma cases, searching for new prognostic parameters. In addition, non-tumor mucosa of celiac and Crohn's disease patients was investigated for epithelial precursor changes (hyperplastic, metaplastic or dysplastic) to help clarify carcinoma histogenesis. When compared with non-glandular structure and non-intestinal phenotype, both glandular structure and intestinal phenotype were associated with a more favorable outcome at univariable or stage- and microsatellite instability/tumor-infiltrating lymphocyte-inclusive multivariable analysis. The prognostic power of histological structure was independent of the clinical groups while the non-intestinal phenotype, associated with poor outcome, was dominant among Crohn's disease-associated carcinoma. Both nuclear β-catenin and SOX-9 were preferably expressed among celiac disease-associated carcinomas; however, they were devoid, per se, of prognostic value. We obtained findings supporting an origin of celiac disease-associated carcinoma in SOX-9-positive immature hyperplastic crypts, partly through flat β-catenin-positive dysplasia, and of Crohn's disease-associated carcinoma in a metaplastic (gastric and/or pancreatobiliary-type) mucosa, often through dysplastic polypoid growths of metaplastic phenotype. In conclusion, despite their common origin in a chronically inflamed mucosa, celiac disease-associated and Crohn's disease-associated small bowel carcinomas differ substantially in histological structure, phenotype, microsatellite instability/tumor-infiltrating lymphocyte status, Wnt pathway activation, mucosal precursor lesions and prognosis

Электронная демократия как идеологическая база цифровизации государственного управления: противоречия

The electronic form of democracy carries the potential to resolve the crisis of the systems of the modern democratic structure, but recently its concept has been increasingly criticized. In this regard, researchers are interested in identifying the causes of this trend. The author suggests that the essence of the problem of e-democracy is in its internal contradictions: a) the convergence of the concept with other theories of democracy; b) ethical issues of the ICT exploitation within the political sphere. The former includes the combination in a single construction of fundamental features of both direct, deliberative and representative democracy in a single construction; substitution of the principles of direct democracy by the principles of plebiscite democracy; multidirectional aspirations expressed in involvement with the simultaneously existing internal apathy to the political sphere. Ethical contradictions: maximizing transparency with high manipulability; independence of decisions with controversial anonymity; reducing bureaucratic procedures as fraud acts increase; reduced number of absentists with persisting distrust of the system. Also, the methods of e-democracy within one society can create premises for both digital authoritarization and the strengthening of the role of civil society.Электронная форма демократии несет в себе потенциал к разрешению кризиса систем современного демократического устройства, однако в последнее время ее концепция вызывает все больше критики. В связи с этим у исследователей возникает интерес к выявлению причин подобной тенденции. Автор высказывает предположение, что суть проблемы э-демократии - в ее внутренних противоречиях: а) соприкосновении концепции с другими теориями демократии; б) этических вопросах эксплуатации ИКТ в рамках политической сферы. К первым относятся совмещение в единой конструкции фундаментальных черт одновременно прямой, делиберативной и представительной демократии; подмена принципов прямой демократии принципами плебисцитарной; разнонаправленность устремлений, выражающихся в вовлечении при внутренней апатии к сфере политического. Этические противоречия: максимизация прозрачности при высокой манипулятивности; независимость решений при спорной анонимности; сокращение бюрократических процедур при учащении актов мошенничества; уменьшение числа абсентеистов при сохраняющемся недоверии к системе. Также методы электронной демократии в рамках одного социума могут создавать посылки и к цифровой авторитаризации, и к усилению роли гражданского общества. Вывод: разрешение указанных противоречий может поспособствовать развитию концепции электронной демократии и практики ее применения во всем мире