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- 저자 : Bengtson, R L (검색결과 8 건)
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AGEING IN THE UNITED STATES AT THE END OF THE CENTURY
BENGTSON, VERN L.,MILLS, TEHERAN L.,PARROTT, TONYA M. Institute for Social Development and Policy Resear 1995 Korea Journal of Population and Development Vol.24 No.2
The belief that America is a “young” nation is widely held by many individuals in the United States. Historically, individualism, self-reliance, and an orientation towards youth have been cherished values reflecting of our national heritage and tradition dating from the 18th through the mid-20th Century. However, America is no longer a “young” nation. Rather, we are an “aging” population, as we show in our analysis of demographic transitions reviewed in this paper. The phenomenon of “cultural (or structural) lag” is discussed in two different contexts: first-the context of the aging family; and second-the context of ethnic/racial minority groups. Finally, some of the relevant public policy responses to aging are described. We look at government programs in four major categories, namely, 1) income; 2) health care; 3) social services; and 4) housing.
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Movement of trifluralin , metolachlor and metribuzin in the soil environment
Kim, Jung Ho,Feagley, S E,Southwick, L M,Wills, H W,Bengtson, R L 한국농화학회 1992 Applied Biological Chemistry (Appl Biol Chem) Vol.35 No.4
The objective of this study was to evaluate the runoff behavior and leaching properties in soil environment of trifluralin, metolachlor and metribuzin: herbicides used widely in Louisiana and other states with soybeans. Adsorption-desorption of the these herbicides trifluralin, metolachlor and metribuzin was studied in a selected soil (Clay loam). At a 1: 10 soil/water ratio, the Freundlich constant Kd, for trifluralin metolachlor and metribuzin were 9.97, 1.54 and 1.10 respectively. Leaching and distribution of these herbicides were evaluated in soil columns (id 5.4㎝×26㎝). When the soil columns were leached with three pore volume of water, the distribution of trifluralin in soil and Leachate water was 70.02% and 0.005% of the applied amount respectively. The distribution of metolachlor was 42.93% in soil and 21.33% in leachate water. The distribution of metribuzin was 8.88% in soil and 68.97% in leachate water. Metolachlor and metribuzin were readily leached while trifluralin was strongly adsorbed to the soil. The results of the study illustrate the strong correlation between adsorption-desorption properties and leaching properties. From Louisiana field plot applied 1683 g/㏊ trifluralin 2759 g/㏊ of metolachlor and 609 g/㏊ of metribuzin, half life the field was 0.083∼0.052 ng/㎖. The concentration of metolachlor and metribuzin were 19∼402 ng/㎖ and 1.5∼56.2 ng/㎖ respectively. The trifluralin loss in surface water from the field was 0.0016% (0.0269 g/㏊) of the amount applied on 3 times of run off events. The total in surface water was 12.34% (340.46 g/㏊) and 7.11% (43.29 g/㏊) respectively, for the metolachlor and metribuzin on 7 times of run off events. The concentration of trifluralin in 1 m and 2 m well were the range of 0.04 ng/㎖∼0.08 ng/㎖. This indicated that leaching of trifluralin was very low. The concentration of metolachlor in 1 m well was decreased froth 205.3 ㎎/㎖ during 17∼62 days after application. The concentration of metribuzin in 1 m well also was decreased from 64.2 ng/㎖ to 0.70 ng/㎖, but in 2 m well was increased from 1.9 ng/㎖ to 76.7 ng/㎖. A contamination of metolachlor and metribuzin in ground water were higher than trifluralin.
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Chin-Chin Chou,John Keegan,Nicole Ditchman,Fong Chan,Kanako Iwanaga,Cahit Kaya,Kevin Bengtson,Mayu Fujikawa,Soo-Yin Tan 한국상담학회 2021 Journal of Asia Pacific counseling Vol.11 No.1
Positive psychology emerged as a movement in professional psychology that emphasizes the positive psychological aspects of the individual instead of focusing on diagnosis and psychopathology. Peterson and Seligman (2004) developed and validated the 240-item Virtues in Action Inventory of Strengths (VIA-IS) to assess character strengths and virtues that enable optimal human thriving. However, VIA-IS is often considered too long for use by clinicians in their private practices, as well as for researchers interested in conducting positive psychology research. The purpose of the present study was to evaluate the psychometric properties of a 24-item Values in Action Semantic Differential Scale (VIA-SDS) in a sample of 231 Singaporean university students. Exploratory factor analysis revealed a 4-factor measurement structure (Humanity, Optimism, Leadership, and Creativity) with Cronbach’s alpha coefficients ranging from .67 to .88. Three of the four latent variables were positively associated with happiness and negatively related to perceived stress and depression. These findings support the validity of the VIA-SDS for use as a brief clinical assessment instrument by clinicians and researchers to assess character strengths.
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