The experience of professional autonomy among psychotherapists in Korea and the United States     

Sue Hyun Bae  David E. Orlinsky   《Int J Intercult Relat》2004,28(6):481-505

This study investigates professional autonomy as experienced by psychotherapists in Korea and in the United States using data collected as part of a collaborative international study of the development of psychotherapists (Orlinsky et al. (1999). Psychotherapy Research, 9(2), 127–153; Orlinsky & Rønnestad, (2005). How psychotherapists develop: A study of therapeutic work and professional growth. Washington, DC: American Psychological Association). The major aims are: to compare the extent of professional autonomy experienced by psychotherapists in Korea and by their counterparts in the USA; and to explore the professional and social correlates of the professional autonomy experienced by Korean therapists and compare these with the correlates of autonomy experienced by American therapists. These aims are pursued through analyses of a database of questionnaire responses. Results indicate that Korean therapists, compared to American therapists in our sample experience significantly lower levels of professional autonomy. For Korean therapists, whether they have a salient theoretical orientation in their practice is the single most important influence in their experience of work autonomy. Seniority and work setting are also significant correlates of autonomy for the Korean therapists. Similar to Korean therapists, seniority and having a salient orientation are also important influences on the way American therapists experience professional autonomy. American therapists, who work in independent practice experience higher work autonomy, whereas American social workers tend to experience lower professional autonomy.  相似文献   

Antimelanogenic effects of <Emphasis Type="Italic">Inula britannica</Emphasis> flower petal extract fermented by <Emphasis Type="Italic">Lactobacillus plantarum</Emphasis> KCCM 11613P     

Eun-hye Park  Won-young Bae  Jae-yeon Kim  Kee-tae Kim  Hyun-dong Paik 《Journal of Zhejiang University. Science. B》2017,18(9):816-824

The inhibitory effects of Lactobacillus plantarum-fermented and non-fermented Inula britannica extracts on the tyrosinase activity were comparatively investigated to examine whether and how they improve the whitening activity, and the contents of total flavonoids and polyphenolics as bioactive compounds were determined. The skin whitening activity using in vitro or ex vivo tyrosinase and L-3,4-dihydroxyphenylalanine (L-DOPA) staining was examined. The total flavonoid content (TFC) was increased by 13.4% after 72 h-fermentation. The viabilities of the B16F10 cells treated with the fermented and non-fermented control extracts were 100.26% and 92.15% at 500 μg/ml, respectively. In addition, the inhibition of tyrosinase activity was increased by the fermented samples from 29.33% to 41.74% following fermentation for up to 72 h. The tyrosinase activity of the untreated control group was increased to 145.69% in B16F10 cells. The results showed that I. britannica fermented by L. plantarum dose-dependently inhibited tyrosinase activity, which was stimulated by α-melanocyte stimulating hormone. These results suggest that lactic fermented I. britannica extracts can be used as effective skin-whitening materials.  相似文献   

Students’ use of the interactive whiteboard during physics group work     

Magnus Strøm Mellingsæter  Berit Bungum 《European Journal of Engineering Education》2015,40(2):115-127

This paper presents a case study of how the interactive whiteboard (IWB) may facilitate collective meaning-making processes in group work in engineering education. In the case, first-year students attended group-work sessions as an organised part of a basic physics course at a Norwegian university college. Each student group was equipped with an IWB, which the groups used to write down and hand in their solutions to the physics problems. Based on a Vygotskian, dialectical stance, this study investigates how the students used the IWB in the group-work situation. From qualitative analysis of video data, we identified four group-work processes where the IWB played a key role: exploratory, explanatory, clarifying and insertion. The results show that the IWB may facilitate a ‘joint workspace’, a social realm in which the students’ dialogues are situated.  相似文献   

Optofluidic microvalve-on-a-chip with a surface plasmon-enhanced fiber optic microheater     

Hyun-Tae Kim  Hyungdae Bae  Zhijian Zhang  Abisola Kusimo  Miao Yu 《Biomicrofluidics》2014,8(5)

We present an optofluidic microvalve utilizing an embedded, surface plasmon-enhanced fiber optic microheater. The fiber optic microheater is formed by depositing a titanium thin film on the roughened end-face of a silica optical fiber that serves as a waveguide to deliver laser light to the titanium film. The nanoscale roughness at the titanium-silica interface enables strong light absorption enhancement in the titanium film through excitation of localized surface plasmons as well as facilitates bubble nucleation. Our experimental results show that due to the unique design of the fiber optic heater, the threshold laser power required to generate a bubble is greatly reduced and the bubble growth rate is significantly increased. By using the microvalve, stable vapor bubble generation in the microchannel is demonstrated, which does not require complex optical focusing and alignment. The generated vapor bubble is shown to successfully block a liquid flow channel with a size of 125 μm × 125 μm and a flow rate of ∼10 μl/min at ∼120 mW laser power.  相似文献   

Inquiry-Based Science: Turning Teachable Moments into Learnable Moments     

Berit S. Haug 《Journal of Science Teacher Education》2014,25(1):79-96

This study examines how an inquiry-based approach to teaching and learning creates teachable moments that can foster conceptual understanding in students, and how teachers capitalize upon these moments. Six elementary school teachers were videotaped as they implemented an integrated inquiry-based science and literacy curriculum in their classrooms. In this curriculum, science inquiry implies that students search for evidence in order to make and revise explanations based on the evidence found and through critical and logical thinking. Furthermore, the curriculum material is designed to address science key concepts multiple times through multiple modalities (do it, say it, read it, write it). Two types of teachable moments were identified: planned and spontaneous. Results suggest that the consolidation phases of inquiry, when students reinforce new knowledge and connect their empirical findings to theory, can be considered as planned teachable moments. These are phases of inquiry during which the teacher should expect, and be prepared for, student utterances that create opportunities to further student learning. Spontaneous teachable moments are instances when the teacher must choose to either follow the pace of the curriculum or adapt to the students’ need. One implication of the study is that more teacher support is required in terms of how to plan for and effectively utilize the consolidation phases of inquiry.  相似文献   

Adaptive controller design for spacecraft formation flying using sliding mode controller and neural networks     

Jonghee Bae  Youdan Kim 《Journal of The Franklin Institute》2012,349(2):578-603

A spacecraft formation flying controller is designed using a sliding mode control scheme with the adaptive gain and neural networks. Six-degree-of-freedom spacecraft nonlinear dynamic model is considered, and a leader–follower approach is adopted for efficient spacecraft formation flying. Uncertainties and external disturbances have effects on controlling the relative position and attitude of the spacecrafts in the formation. The main benefit of the sliding mode control is the robust stability of the closed-loop system. To improve the performance of the sliding mode control, an adaptive controller based on neural networks is used to compensate for the effects of the modeling error, external disturbance, and nonlinearities. The stability analysis of the closed-loop system is performed using the Lyapunov stability theorem. A spacecraft model with 12 thrusts as actuators is considered for controlling the relative position and attitude of the follower spacecraft. Numerical simulation results are presented to show the effectiveness of the proposed controller.  相似文献   

Influential factors for knowledge creation practices of CTE teachers: mutual impact of perceived school support, transformational leadership, and work engagement     

Ji Hoon Song  Sang Hoon Bae  Sunyoung Park  Hye Kyoung Kim 《Asia Pacific Education Review》2013,14(4):467-482

This study examined the structural relationships among perceived school support, transformational leadership, teachers’ work engagement, and teachers’ knowledge creation practices. It also investigated the mediating effects of transformational leadership and work engagement in explaining the association between perceived school support and knowledge creation practices. Samples included 284 career and technical education teachers in the United States. Structural equation modeling was employed. Perceived school support was positively associated with transformational leadership and teachers’ work engagement, but had no direct impact on knowledge creation practices. Transformational leadership was found to affect knowledge creation practices, but not work engagement of teachers. Although a supportive school climate had no direct relationship with knowledge creation practices, it indirectly affected this outcome variable through transformational leadership and teachers’ work engagement. The results suggest that in order to increase teachers’ knowledge creation activities, a supportive school climate should be provided with efforts to improve teachers’ work engagement and transformational behaviors of the principal.  相似文献   

Online self-paced high-school class size and student achievement     

Lin  Chin-Hsi  Kwon  Jemma Bae  Zhang  Yining 《Educational technology research and development : ETR & D》2019,67(2):317-336

Educational technology research and development - In the traditional brick-and-mortar classroom, small classes are generally perceived as desirable, but the benefits associated with particular...  相似文献   

Professional Responsibility – An Issue for Higher Education?     

Tone Dyrdal Solbrekke  Berit Karseth 《Higher Education》2006,52(1):95-119

The aim of this article is to shed light on some aspects of professional responsibility by investigating students’ visions of future work and notions of professional responsibility. The data is based on interviews with samples of freshmen in three educational programmes at the University of Oslo in Norway. The data has been analysed in relation to two thesis claimed by Steven Brint: “The rise of a utilitarian ethos” in higher education and the movement from “social trustee professionalism” to “expert professionalism”. The findings show that the students in our sample do not think of higher education primarily as a means to get credentials that will be useful in the labour marked. An intellectual interest in the discipline is the most prevalent reason for the students’ educational choices. Furthermore our findings support an orientation towards “expert professionalism” rather than “social trustee professionalism”. But, embedded in the perspective of an expert there is an emphasis on ethical knowledge, moral and/or societal responsibility and the wish to do good for others. However, the students’ sense of responsibility seems to be restricted to certain “localism” of their specific occupation. Based on the findings we argue that the students reveal a moral awareness that should be taken seriously by the educational institution in order to foster critical rationality and professional commitments.  相似文献   

The Effects of Trainee Characteristics on Training Effectiveness in Improving Organizational Performance     

Eul‐Kyoo Bae 《Performance Improvement Quarterly》2002,15(2):47-60

Despite the existence of many comprehensive and user‐friendly guides to evaluate training programs, most practitioners have had difficulty assessing training effects on corporate outcomes. Research revealed that trainees, organizational, and training‐related factors might influence the effectiveness of training in terms of organizational performance. The current study examines the effects of trainee characteristics among those factors, specifically what kind of trainee characteristics could affect training effectiveness in terms of job performance in a company. In addition, telephone surveys were conducted to aid in understanding of the reasons for leaving and high turnover of company personnel. The current and terminated employees who went through training programs in the company differed when considering previous sales experience in years and type of sales experience as trainee characteristics factors, with those still employed having a statistically higher average number of years and a higher rated type of sales experience. The current employees demonstrated higher job performance. The implications of these results on the attainment of training effectiveness as well as the selection decisions in the organization are discussed.  相似文献