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Discusses types of university-provided workplace learning; identifies problems posed by employee turnover and lack of equipment. Suggests that the problem of too few students to have a cost-effective program can be solved by clustering program offerings for small businesses. (Contains 25 references.) (SK)

The authors have used dissolved silicate, oxygen, and a ternary mixing model to distinguish between diagenetic release and remineralization as sources for Antarctic bottom water's silicate concentrations. These data combined with earlier research produce an estimate for deep water silicates and contribute to future estimates of global silicate balance.

An experimental study of the photofragmentation of Ar[sub 3][sup +] at wavelengths >650 nm has been undertaken in order to investigate the reaction channel Ar[sub 3][sup +]+hν→Ar[sub 2][sup +]+Ar. As a function of photon energy, measurements have been made of the Ar[sup +]/Ar[sub 2][sup +] branching ratio and the relative kinetic energy of the photofragments. A steady decline observed for the latter as a function of decreasing photon energy, suggests that the dimer ions emerges from the photodissociation processes with a very high level of internal excitation. Supporting semiclassical calculations of the decay dynamics confirm the trend seen for the Ar[sup +]/Ar[sub 2][sup +] branching ratio, but do not reproduce the quantitative details. The calculations do, however, provide strong support for an experimental analysis of the energetics of fragmentation, and show that Ar[sub 2][sup +] can appear either in the electronic ground state, but with a very high degree of vibrational excitation, or in the weakly bound [sup 2]Π[sub g] electronic excited state. © 2000 American Institute of Physics. [ABSTRACT FROM AUTHOR]

A detailed study has been undertaken on the infrared photofragmentation of SF6(NO)±n cluster ions. A line-tuneable CO2 laser has been used to excite the ν3 vibrational mode of the SF6 molecule which is followed by the observation of three separate fragmentation channels: –SF6, –NO, and –2NO. The relative intensities of the fragments are found to be sensitive to the sign of the charge on the ion, the cluster size, and whether n is either odd or even. Within clusters of the same charge, the most marked transitions in fragmentation pattern are found between odd- and even-sized cluster ions, with the decay channels favoring those processes which lead to the formation of even electron ions. There are also large differences in fragmentation pattern between the negatively and positively charged ions. A summation of fragment ion intensities as a function of laser wavelength is used to determine infrared absorption profiles and their shapes confirm a pronounced difference in behavior between SF6 (NO)-n and SF6 (NO)+n. The results for the positively charged ions are interpreted in terms of a central (NO)+3 core which serves to fix the position of the SF6 molecule via an attractive ion-induced dipole interaction. In contrast, observations on the negatively charged ions, suggest that the interaction between the excess electron and the SF6 is predominantly repulsive and also sufficiently diffuse as to keep the molecule comparatively mobile even in large cluster ions. It is suggested that the excess electron in SF6 (NO)-n may occupy a surface state and that the state has associated with it approximately 15 NO molecules. © 1994 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Living in a rural area has been linked to poorer mental health outcomes and higher rates of suicide, particularly among adolescents, as reported in the 2014 study by Kann and colleagues for the Centers for Disease Control and Prevention. Research suggests that the prevalence of mental illness and death by suicide in rural areas may be a result of limited mental health literacy-a problem that is compounded by stigma, geographic isolation, and limited access to service providers. To address the problem of limited mental health literacy in rural areas, the Better Todays training was developed to educate adult gatekeepers in rural communities on how to identify and respond to adolescents at risk for suicide. The present study evaluated Better Todays using a paired sample t-test. Results showed that individuals who participated in Better Todays reported improved mental health literacy. Data from this study suggest that trainings and customized program content may be an effective way to improve mental health literacy in rural communities. [ABSTRACT FROM AUTHOR]