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Biomedical subjects

D van der Wal

Publications and source records attributed to D van der Wal.

8 recordsLinked to original sources

Immunomodulatory and anti-inflammatory activity of Picrorhiza scrophulariiflora.

Extracts of the rhizomes of Picrorhiza scrophulariiflora Pennell (Scrophulariaceae) were investigated for their in vitro and in vivo immunomodulatory properties. Diethyl ether extracts showed potent inhibitory activity towards the classical pathway of the complement system, the respiratory burst of activated polymorphonuclear leukocytes, and mitogen-induced proliferation of T-lymphocytes. Furthermore, such extracts showed anti-inflammatory activity towards carrageenan-induced paw edema. No effects were observed in experimentally induced arthritis in mice.

Adjuvants, Immunologic↗

Caring attributes, professional self concept and technological influences in a sample of Registered Nurses in eleven countries.

Caring, the theoretical foundation of nursing, is identified as one of the core values by Hospital Authorities world-wide to be actualised in clinical practice. Exactly how caring attributes relate to nurses' professional self image and quality nursing service in the context of a contemporary technological environment have yet to be operationalised. In total, 1957 Registered Nurses from 11 different countries were involved in the study which aimed to: develop an understanding of and compare the responses to items relating to caring, professional self concept and technological influences. To collect data an instrument containing 104 Likert items was administered to RNs working in general hospitals. The instrument contained sections which examined professional self concept, technological influences and caring attributes. Descriptive and inferential statistics revealed that many of the Asian nurses in the sample were younger, had less experience yet were more qualified than their 'western' colleagues. The mean scores for the caring attributes for nurses from the Philippines, Sweden and South Africa were significantly higher than those from China (Beijing), Korea, China (Hong Kong) and Scotland. The Korean sample demonstrated the lowest mean score for professional self concept while the New Zealand sample the highest. The Australian, Canadian, NZ, Scotland and Swedish samples were strongly of the opinion that the increase in technology has not brought about the any more spare time in nursing and generally had a more negative opinion about the influence of technology when compared to those from China (Beijing), Philippines, China (Hong Kong) and Singapore. The results are discussed in the light of the cultural differences in the sample and recommendations for future research are considered.

Adult↗

Furthering caring through nursing education.

The nursing students' main quest is for self actualization by attributing meaning to life through caring. To assist student nurses in this quest, the nurse educator needs to plan educational interventions according to an anthropological model that posits care and caring as innate human attributes. Further, the structural essence of what professional nursing caring entails should also be posited as a point of departure for curriculum planning. The author proposes such models. The main implications include that the nursing curriculum must increasingly attend to the emotional needs of nursing students. Curricular content and teaching strategies toward this goal are suggested.

Anthropology, Cultural↗

Codependency: a concomitant field of interest in research into the phenomenon caring.

The growing popularity of caring is evident throughout the nursing profession. Research into the phenomenon caring, however, necessitates that caring as an ethic be distinguished from pseudo caring actions and experiences. Codependence and codependency are proposed as being of a pseudo-caring nature. Research interest into this field of study needs to be kindled.

Caregivers↗

Including transcultural nursing content in the curriculum--Part 2.

Transcultural nursing should be included in the curricula of the basic nursing courses. In this article, the transcultural nursing curriculum content that could be included, is discussed. To ensure a comprehensive approach to this field, a basic course in socio-cultural anthropology should be followed by transcultural nursing study units at strategic points in the curriculum.

Anthropology, Cultural↗

Structure-activity relationship of isolated avenanthramide alkaloids and synthesized related compounds as oviposition deterrents for Pieris brassicae.

The structure-activity relationship was investigated of compounds isolated from the eggs of Pieris brassicae, the large white cabbage butterfly, and eight synthesized related compounds as oviposition deterrents for this insect. The activity of all compounds was tested in a dual-choice bioassay. The two most active oviposition deterrents for P. brassicae were trans-2- [3-(4-hydroxyphenylpropenoyl)amino]-3,5-dihydroxybenzoic acid [8] and trans-2-[3-(3,4-dihydroxyphenylpropenoyl)amino]-3,5-dihydroxybenzo ic acid [2]. Among members of this compound class, alteration of the substituents of the cinnamic acid part of the molecule affected the oviposition deterrent activity more profoundly than other structural changes. Modification of the anthranilic acid part of the molecule resulted in lower activity.

Alkaloids↗