HD DVD substrates for surface enhanced Raman spectroscopy analysis : fabrication, theoretical predictions and practical performance

Commercial HD DVDs provide a characteristic structure of encoding pits which were utilized to fabricate cost efficiently large area SERS substrates for chemical analysis. The study targets the simulation of the plasmonic structure of the substrates and presents an easily accessible fabrication process to obtain highly sensitive SERS active substrates. The theoretical simulation predicted the formation of supermodes under optimized illumination conditions, which were verified experimentally. First tests of the developed SERS substrates demonstrated their excellent potential for detecting vitamin A and pro- vitamin A at low concentration levels

B\"acklund transformation for non-relativistic Chern-Simons vortices

A B\"acklund transformation yielding the static non-relativistic Chern-Simons vortices of Jackiw and Pi is presented.Comment: 7 pages plain Te

Evaluation of a systematic career coaching program for medical students in Korea using the Career Readiness Inventory

Purpose The purpose of this study was to implement a systematic career coaching program for medical students and to evaluate its effectiveness. Methods First-year medical students of Konyang University College of Medicine took part in the FLEX Mentoring II: Career Coaching Program from September to December in 2016 and 2017. This program included 16 weekly sessions, comprising a total of 32 hours. The students took the Career Readiness Inventory before and after the program, as a pre- and post-test of the program. Data from 100 students were used (46 students in 2016, 54 students in 2017) for the evaluation. Results Medical students’ career readiness pre-test was rated as medium. In particular, many students were at a low level in terms of ‘support from colleagues and peers’ (53.0%), ‘career decision’ (48.0%), and ‘efforts for job preparation’ (60.0%). After 16 sessions of a systematic career coaching program, their career readiness level showed a significant increase except for ‘career decision’ (t= 4.242, P= 0.001) and ‘independence’ (t= 0.731, P= 0.466), a sub-factor of ‘career maturity.’ Conclusion The career readiness level of medical students was not sufficiently high. However, a semester of educational training in a systematic career coaching program helped the students to be better prepared for their career. In particular, the significant reduction in the ‘career decision’ variable after the program can be interpreted as indicating that the students changed their behavior to explore and approach their career more seriously and carefully, which also underscores the need for the implementation of career coaching programs in medical schools

The non-linear Schr\"odinger equation and the conformal properties of non-relativistic space-time

The cubic non-linear Schr\"odinger equation where the coefficient of the nonlinear term is a function $F(t,x)$ only passes the Painlev\'e test of Weiss, Tabor, and Carnevale only for $F=(a+bt)^{-1}$, where $a$ and $b$ are constants. This is explained by transforming the time-dependent system into the constant-coefficient NLS by means of a time-dependent non-linear transformation, related to the conformal properties of non-relativistic space-time. A similar argument explains the integrability of the NLS in a uniform force field or in an oscillator background.Comment: Thoroughly revised version, in the light of new interest in non-relativistic conformal tranformation, with a new reference list. 8 pages, LaTex, no figures. To be published in Int. J. Theor. Phy

Els TFG de la Facultat de Biologia 10 anys després de Boloya. Adequant l'avaluació a la situació actual: La diversitat de TFG requereix diversitat de rúbriques

Codi del projecte: 2019PID-UB/035La experiència adquirida després de 10 anys de la implantació del model de Pràcticums i Treball Fi de Grau (TFG) a la Facultat de Biologia ha permès identificar diferents tipologies de projectes. L’actuació realitzada en aquest projecte contempla la incorporació en els TFGs d’un nou apartat que inclou la reflexió crítica dels estudiants sobre la contribució del seu projecte als Objectius del Desenvolupament Sostenible (ODS). Aquesta acció permet visualitzar els ODS i impulsar-los seguint les directrius de l’Agenda 2030 de la UB. Així, s’han generat dos productes que ja estat implementats i operatius des del curs 21-22. El primer producte consisteix en unes noves rúbriques que han adequat els ítems i continguts a la diversitat de tipologies de TFG que es realitzen a la Facultat de Biologia, incloent l’avaluació adaptada a la metodologies Aps. Aquestes rubriques també incorporen una nova dimensió avaluable sobre la contribució de cada treball de fi de grau als ODS a partir de la reflexió crítica realitzada per l’estudiantat en el seu TFG. El segon producte és la elaboració i difusió d’una guia de suport per a estudiants i tutors per a la incorporació dels ODS als treballs fi de grau. Aquesta guia ha estat incorporada al full de ruta de sostenibilitat de la UB per la seva distribució als diferents centres de la UB per tal d’incorporar aquesta activitat reflexiva a tots els treballs de fi de grau de la UB.Programa RIMD