University of Nebraska–Lincoln

About: University of Nebraska–Lincoln is a education organization based out in Lincoln, Nebraska, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 28059 authors who have published 61544 publications receiving 2139104 citations. The organization is also known as: Nebraska & UNL.

Authentic Leadership and Positive Psychological Capital: The Mediating Role of Trust at the Group Level of Analysis

Abstract: This study investigates the relationship between authentic leadership, trust, positive psychological capital (PsyCap), and performance at the group level of analysis. Data were collected from a small Midwestern chain of retail clothing stores, a context in which the needs for both authentic leadership and a positive sales staff are integral to the firm’s performance. Constructs were aggregated to the store (group) level to test relationships between perceptions of authentic leadership, trust in management, positive psychological capital, and performance. Trust in management was found to mediate the relationship between PsyCap and performance and to partially mediate the relationship between authentic leadership and performance. Future discussions and implications are discussed.

Study of high-p(T) charged particle suppression in PbPb compared to pp collisions at root s(NN)=2.76 TeV

Abstract: The transverse momentum spectra of charged particles have been measured in pp and PbPb collisions at sqrt(sNN) = 2.76 TeV by the CMS experiment at the LHC. In the transverse momentum range pt = 5-10 GeV/c, the charged particle yield in the most central PbPb collisions is suppressed by up to a factor of 5 compared to the pp yield scaled by the number of incoherent nucleon-nucleon collisions. At higher pt, this suppression is significantly reduced, approaching roughly a factor of 2 for particles with pt in the range pt=40-100 GeV/c.

Magnetic nanoparticles: recent advances in synthesis, self-assembly and applications

Abstract: Nanostructured magnetic materials have a variety of promising applications spreading from nano-scale electronic devices, sensors and high-density data storage media to controlled drug delivery and cancer diagnostics/treatment systems. Magnetic nanoparticles offer the most natural and elegant way for fabrication of such (multi-) functional materials. In this review, we briefly summarize the recent progress in the synthesis of magnetic nanoparticles (which now can be done with precise control over the size and surface chemistry), and nanoscale interactions leading to their self-assembly into 1D, 2D or 3D aggregates. Various approaches to self-organization, directed-, or template-assisted assembly of these nanostructures are discussed with the special emphasis on magnetic-field enabled interactions. We also discuss new physical phenomena associated with magnetic coupling between nanoparticles and their interaction with a substrate and the characterization of the physical properties at the nanoscale using various experimental techniques (including scanning quantum interferometry (SQUID) and magnetic force microscopy). Applications of magnetic nanoparticle assemblies in data storage, spintronics, drug delivery, cancer therapy, and prospective applications such as adaptive materials and multifunctional reconfigurable materials are also highlighted.

How transformational leadership weaves its influence on individual job performance: the role of identification and efficacy beliefs

Abstract: This study examined how transformational leadership directly and indirectly relates to supervisory-rated performance collected over time including 437 participants employed by 6 U.S. banking organizations in the midwest. Results revealed that one's identification with his or her work unit, self-efficacy, and means efficacy were related to supervisor-rated performance. The effect of transformational leadership on rated performance was also mediated by the interaction of identification and means efficacy, as well as partially mediated by the interaction of self-efficacy and means efficacy. Implications for research, theory, and practice are discussed.