5,367 research outputs found

    Integrating Employment Contracts and Comparisons: What One Can Teach Us about the Other

    Get PDF
    This study examines the events that trigger individuals to consider the social exchanges involved in their employment relationships. Integrating social comparison and psychological contract literature streams, a parallel is drawn between system-referent comparisons and psychological contract evaluations. We hypothesize that self- and other-referent comparisons may be human triggers for engaging in this type of comparison. A variety of structural triggers are also proposed to influence psychological contract evaluations. This field study examines these primary and secondary contract makers as social comparison triggers. Results support the hypotheses that the triggers identified predict psychological contract evaluation and that psychological contract breach is correlated with these evaluations. Implications for future research and managerial practice are discussed

    Modeling T Tauri Winds from He I 10830 Profiles

    Get PDF
    The high opacity of He I 10830 makes it an exceptionally sensitive probe of the inner wind geometry of accreting T Tauri stars. In this line blueshifted absorption below the continuum results from simple scattering of stellar photons, a situation which is readily modeled without definite knowledge of the physical conditions and recourse to multi-level radiative transfer. We present theoretical line profiles for scattering in two possible wind geometries, a disk wind and a wind emerging radially from the star, and compare them to observed He I 10830 profiles from a survey of classical T Tauri stars. The comparison indicates that subcontinuum blueshifted absorption is characteristic of disk winds in ~30% of the stars and of stellar winds in ~40%. We further conclude that for many stars the emission profile of helium likely arises in stellar winds, increasing the fraction of accreting stars inferred to have accretion-powered stellar winds to ~60%. Stars with the highest disk accretion rates are more likely to have stellar wind than disk wind signatures and less likely to have redshifted absorption from magnetospheric funnel flows. This suggests the possibility that when accretion rates are high, disks can extend closer to the star, magnetospheric accretion zones can be reduced in size and conditions arise that favor radially outflowing stellar winds.Comment: 41 pages, 11 figures. Accepted by Astrophysical Journa

    Review of long-term adverse effects associated with the use of chemically-modified animal and nonanimal source hyaluronic acid dermal fillers

    Get PDF
    Although only recently introduced, chemically-modified hyaluronic acid dermal fillers have gained widespread acceptance as “redefining” dermal fillers in the fields of dermatology and cosmetic facial surgery. Although hyaluronic acid-based dermal fillers have a low overall incidence of long term side effects, occasional adverse outcomes, ranging from chronic lymphoplasmacytic inflammatory reactions to classic foreign body-type granulomatous reactions have been documented. These long-term adverse events are reviewed

    Interfaith Inquiry: Learning From Community-Based Research, Pluralism, and Student-Faculty Collaboration

    Get PDF
    Abstract On Catholic college campuses, community outreach and inter-faith cooperation occurs most often under the direction of Student Life Offices, often with strong leadership provided by Campus Ministry. Within this more traditional approach, students learn a great deal about the value of both enterprises, though their learning remains largely undocumented, unassessed and, without the benefit of earned credit hours, unrewarded. A team of faculty and students at Loras College in Dubuque, Iowa are in the process of a following a different approach. After five years of coordinating interfaith conversations and scripture study with centers of worship throughout the Dubuque area, including Christian churches, Jewish Temple, and the local mosque, faculty and student interns created a survey designed to gauge attitudes toward religion throughout the city. By working not only with places of worship but also with local government and businesses, faculty and students are collecting responses that can provide data on each site as well as information on more general, community-wide trends. At this early stage in the process, the group has completed surveys of five institutions, and although that number is too small to reveal conclusive evidence about religious attitudes in this Midwestern town of 60,000, it has been sufficient to disclose the type of learning students are experiencing throughout the project

    Foreign Body Reaction to Hyaluronic Acid (Restylane®): An Adverse Outcome of Lip Augmentation

    Get PDF
    Non-animal source hyaluronic acid (Restylane®) is a relatively new redefining dermal filler that is being employed with increasing frequency in the fields of dermatology and cosmetic/facial plastic surgery. We report a case of a 74-year-old woman who presented with a firm submucosal nodule of the lower lip, which clinically was thought to represent a benign neoplasm. An excisional biopsy revealed the presence of multiple cyst-like vacuolated areas surrounded by granulomatous tissue composed predominantly of histiocytes and foamy macrophages, consistent with a foreign body reaction. Subsequent to the pathology findings, the patient acknowledged that she had received injections of Restylane® to the lips approximately 6 months before discovering the nodule. She had not mentioned this to her dentist or oral and maxillofacial surgeon to whom she had been referred because she believed that these two events were not related. Although hyaluronic acid-based dermal fillers reportedly have a low incidence of long term side effects, clinicians should be aware of the possible development of foreign body reactions to these injectable agents

    Applications of a “Whole Community” Framework for Enhancing Community or Campus Resilience

    Get PDF
    AbstractThe Community and Regional Resilience Institute (CARRI) has developed a unique approach to community resilience based on a “Whole Community” concept. It treats communities as a collection of systems, each with its own resilience. CARRI has applied its approach to two kinds of communities: civil communities, and institutions of higher education (IHEs). For both civil communities and IHEs, CARRI carried out a pilot program. For each participant, their leadership directed an assessment of the resilience of the component systems to the types of changes most relevant to that community. Each assessment provided suggestions for filling any gaps identified as part of the assessment. The pilot for the seven IHEs followed that for the seven civil communities and was able to take advantage of lessons learned from the first. These two pilot programs led to the following conclusions:•CARRI's systems-based approach is both understandable and usable by both types of communities. In practice, it seemed to provide a natural way to look at a community.•In general, IHEs were able to make better use of the approach than civil communities. This is due, in part, to the improvements made in the IHE pilot program based on the civil communities’ results. However, it also reflects the more hierarchical nature of IHEs, the tighter coupling of systems within an IHE and greater discretion in the use of resources in an IHE.•College campuses can be crucial catalysts for enhancing the resilience of civil communities.•Leadership is a key, perhaps the key, element in the success of a community resilience initiative

    The CLIC1 Chloride Channel Is Regulated by the Cystic Fibrosis Transmembrane Conductance Regulator when Expressed in Xenopus Oocytes

    Get PDF
    CLIC proteins comprise a family of chloride channels whose physiological roles are uncertain. To gain further insight into possible means of CLIC1 channel activity regulation, this protein was expressed in Xenopus oocytes alone or in combination with the cystic fibrosis transmembrane conductance regulator (CFTR). Whole-cell currents were determined using two-electrode voltage-clamp methods. Expression of CLIC1 alone did not increase wholecell conductance either at rest or in response to increased intracellular cyclic adenosine monophosphate (cAMP). However, expression of CLIC1 with CFTR led to increased cAMP-activated whole-cell currents compared to expression from the same amount of CFTR mRNA alone. IAA-94 is a drug known to inhibit CLIC family channels but not CFTR. In oocytes expressing both CLIC1 and CFTR, a fraction of the cAMP-activated whole-cell current was sensitive to IAA-94, whereas in oocytes expressing CFTR alone, the cAMP-stimulated current was resistant to the drug. Cell fractionation studies revealed that the presence of CFTR conferred cAMP-stimulated redistribution of a fraction of CLIC1 from a soluble to a membrane-associated form. We conclude that when expressed in Xenopus oocytes CFTR confers cAMP regulation to CLIC1 activity in the plasma membrane and that at least part of this regulation is due to recruitment of CLIC1 from the cytoplasm to the membrane

    Wave energy transmission apparatus for high-temperature environments

    Get PDF
    A wave energy transmission apparatus has a conduit made from a refractory oxide. A transparent, refractory ceramic window is coupled to the conduit. Wave energy passing through the window enters the conduit
    corecore