Searching for three-nucleon resonances

We search for three-neutron resonances which were predicted from pion double charge exchange experiments on He-3. All partial waves up to J=5/2 are nonresonant except the J=3/2^+ one, where we find a state at E=14 MeV energy with 13 MeV width. The parameters of the mirror state in the three-proton system are E=15 MeV and Gamma=14 MeV. The possible existence of an excited state in the triton, which was predicted from a H(He-6,alpha) experiment, is also discussed.Comment: LaTex with RevTe

Low-energy unphysical saddle in polynomial molecular potentials

Vibrational spectra of polyatomic molecules are often obtained from a polynomial expansion of the adiabatic potential around a minimum. For several molecules, we show that such an approximation displays an unphysical saddle point of comparatively small energy, leading to a region where the potential is negative and unbounded. This poses an upper limit for a reliable evaluation of vibrational levels. We argue that the presence of such saddle points is general.Comment: The preprint version of the published Mol. Phys. paper, 19 pages, 3 figure

Relationship of Core Self-Evaluations and Organizational Commitment in Volunteers and Fire Fighters

High- and low-risk volunteers in addition to career fire fighters were surveyed regarding core self-evaluations and organizational commitment. Few differences were found between the three groups regarding the variables. All participants were identified as holding a similar fundamental self-evaluation regardless of group orientation. No differences were found in organizational commitment among the groups. However, further review of each component of the three component model did indicate that career fire fighters have higher continuance commitment than both types of volunteers. Levels of affective and normative commitment were identified to be consistent across all groups.  M.A

Story of benzene and leukemia: Epidemiologic approach of Muzaffer Aksoy

In 1974, Professor Muzaffer Aksoy established a link to leukemia in humans as a result of occupational exposure to benzene. The aim of this study is to evaluate his epidemiological approach for his investigation on the effects of benzene and to bring attention to the benzene problem in Turkey. Dr. Aksoy observed that a large group of leukemic patients were shoemakers, or they worked in leather manufacturing. In the 1960s, benzene was a popular solvent in the leather industry. Dr. Aksoy conducted a field investigation in Gedikpasa-Istanbul, where the shoemakers worked so that he could draw his key observations from actual environmental conditions. With a gas detector, he found the concentration of benzene in these work places to be 150-210 ppm and up to 650 ppm on rare occasions. He performed an epidemiological study and health education among 28,500 shoe, slipper and handbag workers during the period from 1967 to 1974. He published these data, establishing an association between benzene and leukemia. The incidence of leukemia among the shoe workers was decreased by screening, health education, and legislative actions in Turkey, but it began to increase again because of lack of an occupational health policy and underestimation of the problem. These results suggest the importance of primary prevention of occupational cancers. Dr. Aksoy's epidemiologic approach may highlight the necessity for detailed investigations of the occupational status of patients who need medical aid in order to diagnose the real underlying factor

Relationship of Core Self-Evaluations and Organizational Commitment in Volunteers and Fire Fighters

High- and low-risk volunteers in addition to career fire fighters were surveyed regarding core self-evaluations and organizational commitment. Few differences were found between the three groups regarding the variables. All participants were identified as holding a similar fundamental self-evaluation regardless of group orientation. No differences were found in organizational commitment among the groups. However, further review of each component of the three component model did indicate that career fire fighters have higher continuance commitment than both types of volunteers. Levels of affective and normative commitment were identified to be consistent across all groups