Stable bilateral teleoperation with phase transition and haptic feedback

Abstract: In this paper, the bilateral teleoperation with haptic feedback is studied under the phase transition between the constraint and unconstraint motions. The stability of the teleoperation with both force feedback and phase transition is proven by Lyapunov–Krasovskii method and hybrid systems theory. The conditions of the theory results are more general than the others, they are time-varying delays, nonlinear systems, force feedback, and phase transition. By using the admittance control, the application results illustrate the efficiency of the proposed control method.     

论电影的审美距离

审美的主客体之间有物理距离和心理距离。而从物理与心理相统一的角度来认识审美距离是十分必要的。本文以电影审美距离为出发点详细阐述了空间距离、时间距离、心理距离对电影审美的影响。     

Smiling Faces and Colored Spaces: The Experiences of Faculty of Color Pursing tenure in the Academy

Through a comprehensive literature review, this article identifies and discusses barriers to recruitment and retention of faculty of color. Marginalization, racism and sexism manifested as unintended barriers are presented as a few of the barriers faculty of color face in successfully navigating the tenure process. Informed by this literature review, we conducted a self-study that presents the experiences of four faculty of color navigating the tenure process in a predominately white Research Institution. The purpose of this study was to share the experiences of three junior faculty of color as they navigate the tenure process, and one tenured faculty of color who is informally mentoring them through the process. This article highlights the findings of one component of a broader study: focus group discussions about how diversity efforts and activities are subsequently evidenced in teaching, research agendas and service. Four themes are presented: Academic Identity; Confronting Diversity, Mentoring, and Safe Spaces. A discussion of the consequences of these findings on faculty of color retention and recruitment is included. Recommendations are made to other predominately white institutions on how to address issues facing faculty of color.     

网络市场测试中的期权应用

网络产品试销是为了解决市场与产品不确定性问题,由于实物期权法在处理不确定性问题上的优势,在试销决策问题上引入实物期权方法很有必要。通过计算分析,实物期权法能比较合理地反映高风险网络市场中选择权的价值,反映管理者灵活地调整营销策略而给项目带来的增值。     

Using the Multiple Lenses of Identity: Working With Ethnic and Sexual Minority College Students

The authors discuss the complexities of working with clients with dual minority status (i.e., sexual orientation and ethnicity). The authors explore the multiple contexts that influence ethnic and sexual minority clients' self‐concept. A case illustration of a Puerto Rican lesbian college student is presented, and suggestions for implementing multiple lenses in counseling dual minority clients are offered.     

Technological joint venture formation under the real options approach

Technological joint ventures, as powerful mechanisms to attain innovation, have become commonplace. Firms form TJVs in an effort to access future technological opportunities without losing flexibility in uncertain contexts. The real options approach allows the essence of such managerial thinking to be captured, although research in this line remains scarce. Drawing on the real options approach and using an eight-year panel of 4050 Spanish manufacturing firms, we examine under which conditions firms form technological joint ventures. We find that a firm's propensity to form technological joint ventures is positively related to its absorptive capacity and to the degree of environmental technological uncertainty, and negatively related to the risk of pre-emption by rivals and the existence of opportunity costs. Our study contributes to bridging the gap between finance theory and strategic analysis. In addition, it shows practitioners the applicability of the real options approach for decision-making. Results suggest that public policies should particularly, although not exclusively, foster participation of young and small firms in technological joint ventures. We also suggest using managerial perceptions as a guide for channeling public grants.     

Children's distributive justice judgments: aversive racism in Euro-American children?

Euro-American 2nd- and 4th-grade children (Ms=7.67 and 9.82 years) heard stories about Black and White characters who produced artwork yielding a windfall reward. Children allocated rewards to characters, justified their allocations, and judged the fairness of patterns representing different justice principles. Older children allocated more money to Black than White productive characters and to White than Black needy characters, consistent with predictions from aversive racism theory. Rationales most often relied on equality principles; older children gave more equity-based justifications for Black than for White characters. Fairness ratings of patterns representing 4 justice principles revealed effects for age and character race. Implications for understanding the developmental course of moral judgments as they apply to racial differences are discussed.     

口译中的跨文化语用失误及应对策略

对口译员来讲．跨文化意识是指在跨文化交际中自觉或不自觉地形成的一种认知标准和调节方法,或者说是对文化的一种敏感性。口译员作为沟通的桥梁,在跨文化交际中起着重要的作用。本文主要通过具体的实例,分析了现场口译中译员容易出现的跨文化语用失误,并就如何在跨文化口译中减少失误提出了一些应对策略。