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Biomedical subjects

B Ewert

Publications and source records attributed to B Ewert.

5 recordsLinked to original sources
PubMed1999

Anthocyanins, phenolics, and color of Cabernet Franc, Merlot, and Pinot Noir wines from British Columbia.

Changes in phenolics (anthocyanins, flavonols, tartaric esters, and total phenolics) during ripening of grapes and in phenolics and color during vinification and aging of Cabernet Franc, Merlot, and Pinot Noir wines were studied. Anthocyanins in grape skins showed variations in accumulation pattern, concentration, and distribution depending on variety and to a lesser extent on season. During vinification, colorless phenolics increased during alcoholic fermentation, reached maximum values at pressing, and remained stable during malolactic fermentation and subsequent storage. Anthocyanins and color density, on the other hand, increased during the early stages of alcoholic fermentation, reached maximum values 2-3 days after the start of fermentation, decreased during malolactic fermentation, and slowly declined during subsequent storage. Viticultural practices that increased cluster sun exposure generally led to higher phenolics and color density of wines, whereas changing yeasts used for fermentation had minimal effects.

Anthocyanins↗
PubMed1995

Sexuality after laparoscopic-assisted vaginal hysterectomy.

STUDY OBJECTIVE: The aim of the study is to assess the degree of satisfaction of patients with their operation comparing laparoscopic-assisted vaginal hysterectomies (LAVH) with the data available in the literature. DESIGN: A questionnaire was sent to the patients approximately eight months after their operation (a minimum of six and a maximum of 24 months). The questionnaire was conceived to assess conflicting statements and to obtain objective data. SETTING: All the operations were performed at the Jan Palfijin General Hospital, Antwerp, Belgium. INTERVENTIONS: Between January 1991 and December 1993, 116 LAVHs were performed. MEASUREMENTS AND MAIN RESULTS: Fifty-three questionnaires were returned. From the patients returning their questionnaires, 98% prefer LAVH over abdominal hysterectomy because of the cosmetic results. CONCLUSIONS: The psychological and sexual reactions are determined solely by the patients' individual enlightenment.

Adult↗
PubMed1990

Young children's conversations with their mothers and fathers: differences in breakdown and repair.

In this study we compared the conversations of mothers and fathers with their children at 1; 3 and 1; 9, with special attention to breakdown-repair sequences. We found that, overall, children and secondary caregiver fathers experienced more communicative breakdowns than did children and primary caregiver mothers. More specifically, fathers requested clarification of their children more often than did mothers, and they most often used a non-specific query (e.g. What?). Mothers used more specific queries (e.g. Put it where?) and were involved in more 'looped' sequences involving multiple requests for clarification. Fathers also failed to acknowledge child utterances more often than did mothers. After a father non-acknowledgement, children tended not to persist and when they did they often received further non-acknowledgements; the dyad did not often return to the child's original topic. After a maternal non-acknowledgement, on the other hand, children persisted and the dyad more often returned to its previous topic. The results are interpreted as support for the Bridge Hypothesis which claims that fathers present children with communicative challenges that help prepare them for communication with less familiar adults.

Communication↗