Northern Kentucky University

About: Northern Kentucky University is a education organization based out in Highland Heights, Kentucky, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 1380 authors who have published 2641 publications receiving 69457 citations. The organization is also known as: NKU.

The psychological conditions of meaningfulness, safety and availability and the engagement of the human spirit at work

Abstract: Building on Kahn’ s (1990) ethnographic work, a e eld study in a U.S. Midwestern insurance company explored the determinants and mediating effects of three psychological conditions ‐ meaningfulness, safety and availability ‐ on employees’ engagement in their work. Results from the revised theoretical framework revealed that all three psychological conditions exhibited signie cant positive relations with engagement. Meaningfulness displayed the strongest relation. Job enrichment and work role e t were positively linked to psychological meaningfulness. Rewarding co-worker and supportive supervisor relations were positively associated with psychological safety, whereas adherence to co-worker norms and self-consciousness were negatively associated. Psychological availability was positively related to resources available and negatively related to participation in outside activities. Finally, the relations of job enrichment and work role e t with engagement were both fully mediated by the psychological condition of meaningfulness. The association between adherence to co-worker norms and engagement was partially mediated by psychological safety. Theoretical and practical implications related to psychological engagement at work are discussed. To explore the challenge to the human soul in organizations is to build a bridge between the world of the personal, subjective, and even unconscious elements of individual experience and the world of organizations that demand rationality, efficiency, and personal sacrifice . . . we must be willing to shift our viewpoint back and forth between what organizations want of people and what constitutes human complexity: the contradictory nature of human needs, desires, and experience. (Briskin, 1998, p. xii.) This quote from Briskin (1998), an organizational consultant, reflects the challenges that managers and researchers of organizations face as they seek to understand and

Transiting Exoplanet Survey Satellite

Abstract: The Transiting Exoplanet Survey Satellite (TESS) will search for planets transiting bright and nearby stars. TESS has been selected by NASA for launch in 2017 as an Astrophysics Explorer mission. The spacecraft will be placed into a highly elliptical 13.7-day orbit around the Earth. During its 2-year mission, TESS will employ four wide-field optical charge-coupled device cameras to monitor at least 200,000 main-sequence dwarf stars with I C ≈4−13 for temporary drops in brightness caused by planetary transits. Each star will be observed for an interval ranging from 1 month to 1 year, depending mainly on the star’s ecliptic latitude. The longest observing intervals will be for stars near the ecliptic poles, which are the optimal locations for follow-up observations with the James Webb Space Telescope. Brightness measurements of preselected target stars will be recorded every 2 min, and full frame images will be recorded every 30 min. TESS stars will be 10 to 100 times brighter than those surveyed by the pioneering Kepler mission. This will make TESS planets easier to characterize with follow-up observations. TESS is expected to find more than a thousand planets smaller than Neptune, including dozens that are comparable in size to the Earth. Public data releases will occur every 4 months, inviting immediate community-wide efforts to study the new planets. The TESS legacy will be a catalog of the nearest and brightest stars hosting transiting planets, which will endure as highly favorable targets for detailed investigations.

Binary Companions of Evolved Stars in APOGEE DR14: Search Method and Catalog of ∼5000 Companions

Abstract: Multi-epoch radial velocity measurements of stars can be used to identify stellar, sub-stellar, and planetary-mass companions. Even a small number of observation epochs can be informative about companions, though there can be multiple qualitatively different orbital solutions that fit the data. We have custom-built a Monte Carlo sampler (The Joker) that delivers reliable (and often highly multi-modal) posterior samplings for companion orbital parameters given sparse radial-velocity data. Here we use The Joker to perform a search for companions to 96,231 red-giant stars observed in the APOGEE survey (DR14) with $\\geq 3$ spectroscopic epochs. We select stars with probable companions by making a cut on our posterior belief about the amplitude of the stellar radial-velocity variation induced by the orbit. We provide (1) a catalog of 320 companions for which the stellar companion properties can be confidently determined, (2) a catalog of 4,898 stars that likely have companions, but would require more observations to uniquely determine the orbital properties, and (3) posterior samplings for the full orbital parameters for all stars in the parent sample. We show the characteristics of systems with confidently determined companion properties and highlight interesting systems with candidate compact object companions.

The eleventh and twelfth data releases of the Sloan Digital Sky Survey: final data from SDSS-III

Abstract: The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared high-resolution spectrograph, and a novel optical interferometer. All the data from SDSS-III are now made public. In particular, this paper describes Data Release 11 (DR11) including all data acquired through 2013 July, and Data Release 12 (DR12) adding data acquired through 2014 July (including all data included in previous data releases), marking the end of SDSS-III observing. Relative to our previous public release (DR10), DR12 adds one million new spectra of galaxies and quasars from the Baryon Oscillation Spectroscopic Survey (BOSS) over an additional 3000 sq. deg of sky, more than triples the number of H-band spectra of stars as part of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE), and includes repeated accurate radial velocity measurements of 5500 stars from the Multi-Object APO Radial Velocity Exoplanet Large-area Survey (MARVELS). The APOGEE outputs now include measured abundances of 15 different elements for each star. In total, SDSS-III added 2350 sq. deg of ugriz imaging; 155,520 spectra of 138,099 stars as part of the Sloan Exploration of Galactic Understanding and Evolution 2 (SEGUE-2) survey; 2,497,484 BOSS spectra of 1,372,737 galaxies, 294,512 quasars, and 247,216 stars over 9376 sq. deg; 618,080 APOGEE spectra of 156,593 stars; and 197,040 MARVELS spectra of 5,513 stars. Since its first light in 1998, SDSS has imaged over 1/3 of the Celestial sphere in five bands and obtained over five million astronomical spectra.

Measuring customer‐based brand equity

Abstract: Brand equity is very important to marketers of consumer goods and services. Brand equity facilitates in the effectiveness of brand extensions and brand introductions. This is because consumers who trust and display loyalty toward a brand are willing to try to adopt brand extensions. While there have been methods to measure the financial value of brand equity, measurement of customer‐based brand equity has been lacking. Presents a scale to measure customer‐based brand equity. The customer‐based brand equity scale is developed based on the five underlying dimensions of brand equity: performance, value, social image, trustworthiness and commitment. In empirical tests, brands that scored higher on the customer‐based brand equity scale generally had higher prices. Discusses the implications for managers.