Northern Illinois University

About: Northern Illinois University is a education organization based out in DeKalb, Illinois, United States. It is known for research contribution in the topics: Large Hadron Collider & Population. The organization has 8818 authors who have published 20008 publications receiving 632341 citations. The organization is also known as: NIU.

Brand Equity in the Business‐to‐Business Sector: AN EXPLORATORY STUDY

Abstract: Posits a stagewise learning process involved in the building of brand equity: brand birth; the creation of brand awareness and associations; the building of quality and value perceptions; the emergence of brand loyalty; and the launching of brand extensions. Also reports on an empirical study which explored the evolution, existence and extensibility of brand equity in a particular business‐to‐business market. Concludes with practical implications for managers in business‐to‐business product or service firms.

Adolescents' Commitment to Developing Talent: The Role of Peers in Continuing Motivation for Sports and the Arts

Abstract: The role of peer relationships in supporting or hindering adolescents' talent development has received little research attention, despite the importance of peers in adolescents' lives. We conducted semi-structured in-depth interviews with 41 adolescents talented in sports or the arts, and their parents, to investigate (a) the role of peer relationships in adolescents' continued involvement in their talent activities, (b) possible differences in this role by activity domain, and (c) possible gender differences. Thematic analysis indicated that peers typically played a positive function in supporting the continued involvement of talented adolescents in their talent activities. There were differences in opportunities for peer relationships and social satisfaction between in-school and out-of school activities, but not between activity domains. Both males and females mentioned equally social benefits of such involvement. However, females mentioned receiving negative peer attention more frequently than males, and more often cited social dissatisfaction as a significant contributor to decreased involvement or quitting.

The role of job embeddedness on employee performance: the interactive effects with leader–member exchange and organization‐based self‐esteem

Abstract: Although job embeddedness was originally conceptualized to explain job stability or “why people stay” in their organizations, this investigation examines the role of job embeddedness as a hypothesized moderator of relationships among leader–member exchange (LMX), organization-based self-esteem (OBSE), organizational citizenship behaviors (OCBs), and task performance Findings from 2 studies involving 367 employees and 41 supervisors, 1 in a telecommunications company and another in a manufacturing setting, support hypotheses concerning job embeddedness as a moderator of the relationship between (a) LMX and task performance within a telecommunication sample and LMX and OCBs in a sample of manufacturing employees, and (b) OBSE and OCBs in a manufacturing sample Further, a hypothesized 3-way interaction involving job embeddedness, LMX, and OBSE on task performance was found in a sample of manufacturing employees The implications of these findings for studying and managing job embeddedness in relation to employee performance are discussed

An adaptive fuzzy sliding mode controller for robotic manipulators

Abstract: This paper proposes an adaptive fuzzy sliding mode controller for robotic manipulators. An adaptive single-input single-output (SISO) fuzzy system is applied to calculate each element of the control gain vector in a sliding mode controller. The adaptive law is designed based on the Lyapunov method. Mathematical proof for the stability and the convergence of the system is presented. Various operation situations such as the set point control and the trajectory control are simulated. The simulation results demonstrate that the chattering and the steady state errors, which usually occur in the classical sliding mode control, are eliminated and satisfactory trajectory tracking is achieved.

Micromotion of femoral stems in total hip arthroplasty. A randomized study of cemented, hydroxyapatite-coated, and porous-coated stems with roentgen stereophotogrammetric analysis.

Abstract: The fixation of the femoral stem in a total hip arthroplasty was studied in sixty patients (sixty-four hips) with use of roentgen stereophotogrammetric analysis. The hips were randomly stratified on the basis of the age, sex, and weight of the patient; the roentgenographic quality of the bone; and the reason for the operation (primary or secondary osteoarthrosis). The hips were then randomly assigned to one of three types of fixation of the femoral component: insertion with cement, hydroxyapatite coating, or porous coating. Examinations with roentgen stereophotogrammetry were done as long as two years after the operation. Micromotion of the prostheses was evaluated in terms of subsidence or proximal migration and rotations and translations of the proximal-lateral (shoulder) and distal (tip) parts of the prostheses. The clinical results at the two-year follow-up evaluation did not differ significantly between the groups with regard to the Harris hip score or the pain score (p > 0.05 for both; Wilcoxon rank-sum test). There were small or no differences in rotations and micromotions of the shoulder and the tip of the prostheses. Increased subsidence of 0.1 to 0.2 millimeter was recorded for the cemented and the porous-coated prostheses (p = 0.002 and p = 0.02, respectively; Wilcoxon rank-sum test). Thus, proximal hydroxyapatite coating seems to enhance the early fixation of the stem. Conventional roentgenography revealed an increased number of radiodense lines surrounding the porous-coated prostheses. Distal hypertrophy of the femoral cortex was found mainly around the hydroxyapatite-coated prostheses. Proximal resorption of bone and heterotopic ossification occurred to approximately the same extent regardless of the type of fixation used.