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Biomedical subjects

P Rousseeuw

Publications and source records attributed to P Rousseeuw.

9 recordsLinked to original sources
PubMed1984

Visco-elastic properties of four currently used tissue conditioners.

About 60% of complete denture wearers experience a mostly painless inflammation of the palatal mucosal membrane. Especially prosthetic trauma and Candida albicans infection are assumed as aetiological factors. The treatment can be prosthetic or medicamentous, dependent on the cause. In this connection tissue conditioners could be very effective by their visco-elastic properties. Four tissue conditioners have been examined (Coe Comfort, FITT, Ivoseal, Visco Gel) for their impression softness and elastic recovery. All tests have been done on 20 mm specimens. The length of the specimens was measured during a 10 min compression and a 60 min relaxation. Eight ageing times have been taken into consideration. From the results large differences appear between the various tissue conditioners. Two main groups can be distinguished. FITT and Ivoseal are harder materials, whereas Coe Comfort and Visco Gel are softer. The ageing time has a clear hardening influence especially on Visco Gel. Visco Gel appears to be the best tissue conditioner by its relative plasticity during the first hours and its elastic behaviour during a longer ageing period. The clinical relevance of these materials is certainly not proved by this study. Further research will show this.

Acrylic Resins↗
PubMed1984

Dimensions of first year university student behavior.

Eight hundred and seventy-four freshmen underwent a structured interview to search for characteristics in student behavior. The scores were analysed using agglomerative and divisive hierarchical clustering methods. The results demonstrate the presence of two opposite dimensions in freshman behavior: the first referred to study involvement, the second referred to campus participation.

Female↗
PubMed1984

[The effect of swimming on the nasal passages and on tube function in children].

In two studies the authors want to confirm experimentally what is assumed in every day ENT-practice: otitis and sinusitis are not infrequent complications of swimming. The first study, involving 60 children with chronic non-specific lung diseases shows that swimming in a sea water pool increases the nasal airway resistance during two days. In the second study, performed in 32 normal children swimming in a chlorous pool, a negative relationship is found between the number of days after the swimming and the increased nasal airway resistance. Probably other factors also play a part in this phenomenon. Due to the too small number of children showing an otitis media with effusion, the influence of swimming on the function of the Eustachian tube could not be determined.

Acoustic Impedance Tests↗
PubMed1983

Active anterior rhinomanometry in pre- and postoperative evaluation, use of Broms' mathematical model.

The authors studied the value of the Broms' mathematical model for active anterior rhinomanometry in a pathological population. They compared all different variables of a pathological group with a normal group and found significant differences for v0, v2 and R. There existed no difference between the means of v0 before and after surgery. There existed, however, a strongly positive correlation between the expiration and inspiration value. The influence of surgery was always significant for the variables v1, v2, v3 and R. Furthermore, the absolute deviation between the computed values and the recorded values tended to be very small. So, the authors concluded that rhinomanometry is a valuable aid in judging pre- and postoperative results.

Adolescent↗
PubMed1983

Search for the relationship between academic performance and some psychosocial factors. The use of a structured interview.

Eight hundred and seventy-four freshmen underwent a structured interview to study the relationship of psychosocial factors to academic performance. The scores were measured using the SPSS computer package. The results demonstrate positive significant relationships between study success and sex, fulfilled study expectations, fulfilled college expectations, informal contacts with faculty members, introversion and confidence. The scores indicate negative significant relationships between study success and regular alcohol drinking, abuse of medication and some psychopathological symptoms.

Achievement↗
PubMed1983

Search for the relationship between interrupted university attendance of first year students and some psychosocial factors.

Eight hundred and seventy-four freshmen underwent a structured interview to study the relationship of some psychosocial factors to interrupted university attendance. The scores were measured using the SPSS computer package. The scores indicate negative significant relationships between interrupted university attendance and satisfactory housing, own study choice, study motivation, campus participation and irregular alcohol consumption. The results demonstrate a positive significant relationship between withdrawal and the distance from the university.

Adolescent↗
PubMedDate not supplied

Hierarchical cluster analysis of emotional concerns and personality characteristics in a freshman population.

An investigation was conducted to examine correlates of emotional concerns and personality characteristics in a general freshman population. The scores were analysed using agglomerative and divisive hierarchical clustering methods. The results indicate the presence of a coherent group which concerns emotional factors, and show a distinct user group strongly related to the first group. The data do not determine the importance of various personality factors in influencing emotional concerns.

Adolescent↗