Monomial Relization of Crystal Bases for Special Linear Lie Algebras

We give a new realization of crystal bases for finite dimensional irreducible modules over special linear Lie algebras using the monomials introduced by H. Nakajima. We also discuss the connection between this monomial realization and the tableau realization given by Kashiwara and Nakashima.Comment: 15 page

Teaching Google search techniques in an L2 academic writing context

This mixed-method study examines the effectiveness of teaching Google search techniques (GSTs) to Korean EFL college students in an intermediate-level academic English writing course. 18 students participated in a 4-day GST workshop consisting of an overview session of the web as corpus and Google as a concordancer, and three training sessions targeting the use of quotation marks (“”) and a wildcard (*). Each session contained a pre-test, a 30-minute training, and a post-test, and each training session focused on one of the three key writing points: articles, collocations, and paraphrasing. Two questionnaires for demographic information and GST learning experiences were conducted. The results showed a statistically significant effect for the overall gain score. In particular, participants’ use of articles greatly improved after the training—in contrast to their use of collocations and paraphrasing. Lack of grammar and vocabulary knowledge seemed to hinder their data-driven learning, especially for collocation use and paraphrasing. The questionnaire data showed that all students found the GSTs beneficial, mostly because they were easy to use for confirmation and correction. Overall, both quantitative and qualitative data suggest that teachers’ meticulous guidance and vigilant individualized feedback are necessary to facilitate L2 self-directed Google-informed writing

Young Wall Realization of Crystal Bases for Classical Lie Algebras

In this paper, we give a new realization of crystal bases for finite dimensional irreducible modules over classical Lie algebras. The basis vectors are parameterized by certain Young walls lying between highest weight and lowest weight vectors.Comment: 27page

Nakajima monomials, Young walls and Kashiwara embedding for Uq(An(1))

AbstractIn this paper, we realize the crystal basis B(λ) of the irreducible highest weight module V(λ) of level 1 for Uq(An(1)) using Nakajima monomials satisfying some conditions. Also, from this monomial realization, we obtain the image of Kashiwara embedding Ψιλ:B(λ)↪Z∞⊗Rλ, where ι is some infinite sequence from the index set of simple roots. Finally, we give a Uq(An(1))-crystal isomorphism between Young wall realization and monomial realization, and so we can understand the image of Kashiwara embedding Ψιλ:B(λ)↪Z∞⊗Rλ using the combinatorics of Young walls

Effects of uncertainty and spousal support on infertility-related quality of life in women undergoing assisted reproductive technologies

Purpose The purpose of this study was to investigate the effects of uncertainty and spousal support on infertility-related quality of life (QoL) in women undergoing assisted reproductive technologies. Methods In this correlational survey study, 172 infertile women undergoing assisted reproductive technologies for infertility treatment at M hospital in Seoul participated. Data collection took place at the outpatient department of M hospital using a self-report questionnaire from July to August 2019. Data were analyzed using SPSS for Windows version 28.0. Results The mean scores for uncertainty, spousal support, and infertility-related quality of life (QoL) were 28.35 (out of 50), 86.67 (out of 115), and 57.98 (out of 100), respectively. Infertility-related quality of life (QoL) was positively correlated with spousal support and negatively correlated with uncertainty. According to the regression analysis, infertility-related quality of life (QoL) was significantly affected by uncertainty, total number of assisted reproductive technology treatments, marriage duration, subjective health status, the financial burden of infertility testing, and the presence of a burdensome person. These variables had an explanatory power of 35.0% for infertility-related quality of life (QoL). Conclusion Uncertainty was an important factor influencing infertility-related quality of life (QoL) among women undergoing assisted reproductive technologies. It is necessary to develop and implement a nursing intervention program focused on reducing various forms of uncertainty during assisted reproductive procedures and to consider other factors affecting infertility-related quality of life (QoL) in the clinical setting

Retrospective Analysis of Peripheral Blood Stem Cell Transplantation for the Treatment of High-Risk Neuroblastoma

Disease relapse after autologous peripheral blood stem cell transplantation (APBSCT) is the main cause of treatment failure in high-risk neuroblastoma (NBL). To reduce relapse, various efforts have been made such as CD34+ selection and double APBSCT. Here the authors reviewed the clinical features and outcomes of high-risk NBL patients and analyzed their survival. The medical records of 36 patients with stage III or IV NBL who underwent APBSCT at Seoul National University Children's Hospital between May 1996 and May 2004 were reviewed. Total 46 APBSCTs were performed in 36 patients. Disease free survival (DFS) and overall survival of all patients were 47.7% and 68.8%, respectively. The patients were allocated to three groups according to the APBSCT type. The DFS of CD34+ non-selected single APBSCT patients (N=13), CD34+ selected single APBSCT patients (N=14), and CD34+ selected double APBSCT patients (N=9) were 55.6%, 40.6%, and 50.0%, respectively, which were not significantly different. Thus the survival was not found to be affected by CD34+ selection or transplantation number. To improve long-term survival, various efforts should be made such as chemotherapy dose intensification, more effective tumor purging, and control of minimal residual disease via the use of differentiating and immune-modulating agents