17,795 research outputs found
The Agricultural Policy Outlook: Looking Back Focuses the Road Ahead
Agricultural and Food Policy,
Evaluation of the capture efficiency and size selectivity of four pot types in the prospective fishery for North Pacific giant octopus (Enteroctopus dofleini)
Over 230 metric tons of octopus is harvested as bycatch annually in Alaskan trawl, long-line, and pot fisheries. An expanding market has fostered interest in the development
of a directed fishery for North Pacific giant octopus (Enteroctopus dofleini). To investigate the potential for fishery development we examined the efficacy of four different pot types for capture of this species. During two
surveys in Kachemak Bay, Alaska, strings of 16 –20 sablefish, Korean hair crab, shrimp, and Kodiak wooden
lair pots were set at depths ranging between 62 and 390 meters. Catch per-unit-of-ef for t estimates were highest for sablefish and lair pots. Sablefish pots caught significantly heavier North Pacific giant octopuses but also produced the highest bycatch of commercially important species, such as halibut (Hippoglossus stenolepis),
Pacific cod (Gadus macrocephalus), and Tanner crab (Chionoecetes bairdi)
The cost of systemic corticosteroid-induced morbidity in severe asthma : a health economic analysis
The study data-set was supported by the Respiratory Effectiveness Group through their academic partnership with Optimum Patient Care. Ciaran O'Neill was funded under a HRB Research Leader Award (RL/13/16).Peer reviewedPublisher PD
The Importance of Recruitment in Job Choice: A Different Way of Looking
Recent literature reviews have called into question the impact of recruitment activities on applicants\u27 job choices. However, most previous findings have been based on cross-sectional ratings obtained immediately after initial screening interviews, thus raising questions about the degree to which prior conclusions are bound to that particuJar methodology. In contrast, the present study used longitudinal structured interviews to let job seekers explain, in their own words, how they made critical job search and choice decisions. Interview transcripts revealed that recruitment practices played a variety of roles in job seeker decisions. For example, consistent with signalling theory, subjects interpreted a wide variety of recruitment experiences (recruiter competence, sex composition of interview panels, recruitment delays) as symbolic of broader organizational characteristics. In addition, a number of contingency variables emerged that seemed to affect the perceived signalling value of recruitment experiences (e.g., prior knowledge of the company, functional area of the recruiter). Also notable were the strongly negative effects of recruitment delays, particularly among male students with higher grade point averages and greater job search success. Finally, our results suggest that certain applicant reactions may be systematically related to sex, work experience, grade point average, and search success. The article concludes with practical and research implications
DREIDING: A generic force field for molecular simulations
We report the parameters for a new generic force field, DREIDING, that we find useful for predicting structures and dynamics of organic, biological, and main-group inorganic molecules. The philosophy in DREIDING is to use general force constants and geometry parameters based on simple hybridization considerations rather than individual force constants and geometric parameters that depend on the particular combination of atoms involved in the bond, angle, or torsion terms. Thus all bond distances are derived from atomic radii, and there is only one force constant each for bonds, angles, and inversions and only six different values for torsional barriers. Parameters are defined for all possible combinations of atoms and new atoms can be added to the force field rather simply. This paper reports the parameters for the "nonmetallic" main-group elements (B, C, N, 0, F columns for the C, Si, Ge, and Sn rows) plus H and a few metals (Na, Ca, Zn, Fe). The accuracy of the DREIDING force field is tested by comparing with (i) 76 accurately determined crystal structures of organic compounds involving H, C, N, 0, F, P, S, CI, and Br, (ii) rotational barriers of a number of molecules, and (iii) relative conformational energies and barriers of a number of molecules. We find excellent results for these systems
Recruiter Perceptions of Applicant Fit: Commonalities and Differences
To date, normative selection models have focused primarily on matching individual knowledges, skills, and abilities to job requirements. However, it has increasingly been argued that people should also be selected for fit to broader organizational characteristics such as strategy, culture and values. Despite the apparent reasonableness of these claims, there has been little research on how employers actually go about the task of screening or selecting for broader organizational fit. Accordingly, the present study examined how organizational recruiters assess applicant fit. Fifty-four campus recruiters in four colleges provided examples of best-fitting and worst-fitting applicants from just-completed interview schedules, along with specific descriptions of what it was that made each applicant fit or not fit . Examination of interview transcripts suggested that despite the recent emphasis on unique organizational values, strategies, or cultures in discussions of fit, by far the most frequently-mentioned determinants of fit were either (1) job-related coursework or experience, or (2) generally (rather than uniquely) desirable personal characteristics such as articulateness, positive personal appearance, and good general communication skills. However, some systematic differences were detected in the extent to which particular characteristics were sought by recruiters in different colleges or by those recruiting for different types of vacancies. Findings are related to previous research, and implications for applicants, employers, and future researchers are offered
Benchmark solutions for the galactic heavy-ion transport equations with energy and spatial coupling
Nontrivial benchmark solutions are developed for the galactic heavy ion transport equations in the straightahead approximation with energy and spatial coupling. Analytical representations of the ion fluxes are obtained for a variety of sources with the assumption that the nuclear interaction parameters are energy independent. The method utilizes an analytical LaPlace transform inversion to yield a closed form representation that is computationally efficient. The flux profiles are then used to predict ion dose profiles, which are important for shield design studies
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