Seungwoo Kwon

Sociodemographic and lifestyle factors affecting the self- perception period of lower urinary tract symptoms of international prostate symptom score items

Aims:  This study investigated the influence of sociodemographic and lifestyle factors on the lower urinary tract symptom (LUTS) self‐perception period and International Prostate Symptom Score.

Supply chain network design and transshipment hub location for third party logistics providers

Transshipment hubs are the places where cargo can be re-consolidated and transportation modes can be changed. Transshipment hubs are widely used in logistics industry. In this article, we consider a supply chain network design problem for a third party logistics provider in which we obtain the locations of transshipment hubs among promising hub locations for the objective of minimizing the total system cost that includes the transportation cost, the fixed cost and the processing cost. In the problem, the unit cost of transporting cargo between a pair of origin-destination is non-linear and is a decreasing step function, and each unit cargo through the transshipment hub is charged a fixed processing cost. The problem is considered a mixed integer programming problem. However, due to the complexity of the problem, a heuristic solution approach is proposed. The proposed solution is then implemented to a third party logistics provider and their experience shows that significant cost savings are obtained, compared with the current practice.

The association between the self-perception period of overactive bladder symptoms and overactive bladder symptom scores in a non-treated population and related sociodemographic and lifestyle factors

Aims:  To investigate the association between the self‐perception period of OAB symptoms (SP‐OAB) and the overactive bladder symptom score (OABSS), along with related sociodemographic and lifestyle factors.

Treatment satisfaction with low-dose tamsulosin for symptomatic benign prostatic hyperplasia: results from a multicentre cross-sectional survey

Aims:  To evaluate the efficacy and treatment satisfaction with low‐dose (0.2 mg) tamsulosin in patients with symptomatic benign prostatic hyperplasia (BPH), and to investigate individual lower urinary tract symptoms according to treatment satisfaction.

How Team-Level and Individual-Level Conflict Influences Team Commitment: A Multilevel Investigation

We investigate how two different types of conflict (task conflict and relationship conflict) at two different levels (individual-level and team-level) influence individual team commitment. The analysis was conducted using data we collected from 193 employees in 31 branch offices of a Korean commercial bank. The relationships at multiple levels were tested using hierarchical linear modeling (HLM). The results showed that individual-level relationship conflict was negatively related to team commitment while individual-level task conflict was not. In addition, both team-level task and relationship conflict were negatively associated with team commitment. Finally, only team-level relationship conflict significantly moderated the relationship between individual-level relationship conflict and team commitment. We further derive theoretical implications of these findings.

Relative Importance of Human Resource Practices on Affective Commitment and Turnover Intention in South Korea and United States

The main purpose of this study was to investigate the impact of perceived HR practices on affective commitment and turnover intention. This study explored which HR practices were relatively more important in predicting affective commitment and turnover intention. A total of 302 employees from the United States and 317 from South Korea completed the same questionnaires for assessing the aforementioned relationships. The results illustrated that among perceived HR practices, internal mobility had the most significant association with turnover intention in both the United States and South Korea. While internal mobility was a stronger predictor of affective commitment for the United States sample, training was the most important variable for predicting affective commitment in South Korea. The second purpose of the study was to examine whether individuals’ positive affect influences the relationship between perceived HR practices and affective commitment and turnover intention. In the United States, positive affect moderated the relationship between perceived HR practices and affective commitment and turnover intention such that the relationships were stronger for individuals reporting high positive affect relative to those reporting low positive affect. However, these relationships were not significant in South Korea. We discuss the implications of these results, study limitations, and practical suggestions for future research.

Re-categorisation of male lower urinary tract symptoms based on the international prostate symptom score questionnaire.

The purpose of this study was to develop a new sub‐classification system for male lower urinary tract symptoms (LUTS)–mild, moderate and severe–using the conventional International Prostate Symptoms Score (I‐PSS).