109 research outputs found
Temperature Dependence of the Infrared Spectrum of Ammonia Borane: Librations, Rotations, and Molecular Vibrations
Hydrogen dynamics and characterization of the tetragonal-to-orthorhombic phase transformation in ammonia borane.
Rotational dynamics in ammonia borane: Evidence of strong isotope effects
This work reports anelastic spectroscopy measurements on the partially deuterated (ND3BH3 and NH3BD3) and perdeuterated (ND3BD3) ammonia borane (NH3BH3) compounds. The relaxations previously reported in NH3BH3 are observed in all the samples, and are ascribed to the rotational and torsional dynamics of NH(D)(3)BH(D)(3) complexes. A new thermally activated peak appears at 70 K (for a vibration frequency of similar to 1 kHz) in the spectrum of NH3BD3 and ND3BD3. The peak is practically a single-time Debye process, indicating absence of interaction between the relaxing units, and has a strikingly high intensity. A secondary relaxation process is also detected around 55 K. The anelastic spectrum of the ND3BH3 only displays this less intense process at 55 K. The analysis of the peaks supplies information about the dynamics of the relaxing species, and the obtained results provide indications on the effect of partial and selective deuteration on the hydrogen (deuterium) dynamics. (C) 2013 Elsevier B.V. All rights reserved
Absence of the structural phase transition in ammonia borane dispersed in mesoporous silica: evidence of novel thermodynamic properties
Can connectors change team culture on fluid teams?
"Connectors—likable people with abnormally high motive, ability, and opportunity to develop relationships with lots of different people from different backgrounds (Autrey, Jackson, Klevsky, and Drasgow 2015a)—can help their teams become more effective by enhancing the team processes which significantly impact team outcomes (Autrey, Bauer, Jackson, and Klevsky 2015b). Yet if connectors are a scarce resource, the most effective strategy for assigning them to teams in order to enhance team effectiveness depends on what happens when the connectors leave the team. I hypothesize and find that connectors benefit teams with at least one member not predisposed to cooperate (""less cooperative teams""), and these organizational benefits remain after the connector is replaced by a non-connector. I also find that teams with every member predisposed to cooperate (""more cooperative teams"") do not need a connector’s help as much. After the connector leaves, the organizational benefits more cooperative teams obtained from working with a connector revert back to average levels experienced by more cooperative teams. This pattern of results suggests that exposure to connectors may help less cooperative teams because of the cooperative social norms connectors create and leave behind, but may not help more cooperative teams because the benefit requires the connector’s presence. These findings not only have practical implications for organizations with fluid teams, but also theoretical implications for the mechanisms underlying a previously documented connector effect. Specifically, these findings imply that while all teams can benefit from a connector’s presence, only less cooperative teams sustain that benefit via developing healthier social norms."Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2018-08-01The student, Elena Klevsky, accepted the attached license on 2016-07-11 at 14:28.The student, Elena Klevsky, submitted this Dissertation for approval on 2016-07-11 at 14:51.This Dissertation was approved for publication on 2016-07-14 at 10:30.DSpace SAF Submission Ingestion Package generated from Vireo submission #9868 on 2016-11-10 at 12:25:09Made available in DSpace on 2016-11-10T18:42:55Z (GMT). No. of bitstreams: 2
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Previous issue date: 2016-07-14Embargo set by: Seth Robbins for item 95474
Lift date: 2018-11-10T18:43:22Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Only Restriction Lifted for Item 95474 on 2018-11-11T10:15:45Z
The Negro Press - Southern Style Miltiancy: The Atlanta Independent and Savannah Tribune, 1904-1928, 1963
Reflections on Doing Research Grounded in My Experience of Perinatal Loss: From Auto/biography to Autoethnography
This article, derived from my doctoral dissertation (Davidson 2007) examining the emergence of hospital protocols for perinatal bereavement during the last half of the twentieth century in Canada, focuses on the methodological complexities – the draw, the drain, and the delight of doing qualitative research grounded in my own experience of perinatal loss. With my dissertation now a fait a complete, reflecting back on my research, my use of autoethnography at this point allows a return to a story that has already happened and involves \'\'the construction and reconstruction\' of my personal 2 experiences as narratives\' (Autrey 2003: 10). Taking this narrative turn, my enquiry here shifts auto/biography to autoethnography as a mode of enquiry.Qualitative Research; Feminist Research; Perinatal Loss and Grief; Bereavement; Experience; Auto/biography; Autoethnography
The effect of industry organization upon performance : A case study : The production of primary aluminum
The familiar problem of social losses due to monopolization of an industry is addressed with the unfamiliar addition of a recognition that production costs may not be independent of industry structure. The study is specifically focused on the domestic primary aluminum industry. A linear-programming process model of aluminum production is used to analyze the production cost effects of certain sub-optimal institutional arrangements in the industry thought to reflect government intervention. Decontrol results in production cost savings, but any such savings are found to be vastly outweighed by usual monopoly losses unless output price is regulated.Economics, Department o
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