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Biomedical subjects

S K Green

Publications and source records attributed to S K Green.

8 recordsLinked to original sources
PubMed2004

Diversity of begomovirus DNA beta satellites of non-malvaceous plants in east and south east Asia.

Two previous analyses of the diversity of begomovirus-associated DNA beta satellites focused predominantly on molecules originating from the Indian sub-continent and southern China. They showed the satellites to group according to the hosts from which they were isolated, either malvaceous or non-malvaceous plants, and then to form sub-groups based upon geographic origin and host. In this study we analysed the diversity of DNA beta satellites in east and south east Asia. Here the satellites group by geographic location and are considerably more diverse than previously indicated. This probably reflects the limited movement of begomovirus/DNA beta complexes in this region and their subsequent diversification from a common ancestor to a variety of hosts.

Asia, Southeastern↗
PubMed1999

Adhesion-dependent multicellular drug resistance.

Herein we review studies demonstrating resistance manifested at the multicellular level, a phenomenon referred to as intrinsic or acquired multicellular resistance (MR). In addition, due to the fact that such resistance can be recapitulated in vitro only when cells are adhered to one another in a three-dimensional culture context, we examine the roles of cell adhesion molecules and how they may contribute directly or indirectly to MR. Finally, we suggest an experimental approach to circumvent MR in the treatment of advanced, aggressive ascites tumors.

Animals↗
PubMed1996

Evaluating therapists' practices in a postmodern world: a discussion and a scheme.

The social constructionist ideas currently reshaping the practice of family therapy are also relevant for supervision. However, if, as postmodernists assert, there is no privileged, expert position, how can supervisors evaluate their trainees? This question-a most pertinent one for university-based supervision, where evaluation is necessary and constant-is addressed both theoretically and pragmatically in this article. Ethical issues are explored, and an evaluation form, developed by the authors for use in a family therapy doctoral program, is presented and discussed.

Clinical Competence↗
PubMed1993

Serological comparison of tospovirus isolates from Taiwan and India with impatiens necrotic spot virus and different tomato spotted wilt virus isolates.

Tospovirus isolates from tomato and watermelon in Taiwan and from peanut in India reacted neither with antibodies to tomato spotted wilt virus (TSWV), nor with antibodies to impatiens necrotic spot virus (INSV), in ELISA and in electroblot immunoassays. Additionally, all three tospovirus isolates had an N protein with a molecular weight of 32 kDa as compared to 29 kDa for the N protein to TSWV and INSV. The observed physicochemical and serological differences suggest the generation of a new, third species in the genus tospovirus for which we propose the name groundnut bud necrosis virus.

Antigens, Viral↗
PubMed1983

Medical students' attitudes toward the elderly.

A study was designed to examine the relationship between students' attitudes, their willingness to work with elderly patients, and the impact of a geriatric rotation on a randomly selected subset of the group. A pretest/post-test design was used in which 148 third-year medical students completed a multidimensional questionnaire on two occasions eight weeks apart. Highly significant correlations were found between the expressed intention of the student to work with the elderly and positive feelings about previous professional contact (r = .26, P less than .001), previous personal contact (r = .17, P less than .002), belief that working with the elderly is rewarding (r = .30, P less than .0001), high degree of comfort in working with the elderly (r = .21, P less than .01), and positive stereotypes about the elderly (r = .14, P less than .05). Despite the students' positive rating of the geriatric rotation, multiple regression analysis indicated that the best predictor of an index of intentions to work with elderly patients on the post-test was this same index of intentions on the pretest (multiple r = .58, P less than .001). These findings, as well as the actual attitudes and stereotypes held by the students, have major implications for the planning and development of medical students' experiences in geriatrics.

Aged↗
PubMed1981

Attitudes and perceptions about the elderly: current and future perspectives.

Research on attitudes and perceptions of the aged is critically reviewed. Problems with early survey research methods such as lack of generalizability, susceptibility to demand characteristics, and inattention to psychometric quality are discussed. Recent studies are examined in terms of characteristics of the stimuli and contexts, and characteristics of the perceivers employed in them. Methodological and conceptual issues in these three categories are used to organize the body of research that exists. Suggestions are made for future research in which the use of multiple measures in specific contexts is emphasized.

Adult↗
PubMed1974

Agricultural plants and soil as a reservoir for Pseudomonas aeruginosa.

Pseudomonas aeruginosa was detected in 24% of the soil samples but in only 0.13% of the vegetable samples from various agricultural areas of California. The distribution of pyocin types of soil and vegetable isolates was similar to that of clinical strains, and three of the soil isolates were resistant to carbenicillin. Pseudomonas aeruginosa multiplied in lettuce and bean under conditions of high temperature and high relative humidity (27 C and 80-95% relative humidity) but declined when the temperature and humidity were lowered (16 C, 55-75% relative humidity). The results suggest that soil is a reservior for P. aeruginosa and that the bacterium has the capacity to colonize plants during favorable conditions of temperature and moisture.

California↗