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Biomedical subjects

H Weise

Publications and source records attributed to H Weise.

At least 19 recordsLinked to original sources
PubMed2004

[Experiences and difficulties in implementing immunization registries in Saxony-Anhalt].

In the German Federal State of Saxony-Anhalt, the Health Department must be notified of vaccines administered to children <7 years of age including their names. The goal of this mandatory notification is to improve and stabilize the age-appropriate vaccination coverage. However, difficulties have been encountered in implementing mandatory notification. Therefore, the Health Departments of Magdeburg and Halle have launched a model project focusing on analysing and eliminating these problems. Mandatory notification requires parents' approval, endorsement of vaccantors, and availability of human and technicely resources in the Health Department. An enquiry among paediatricians and family doctors in private practice revealed widespread reservations about mandatory notification because of privacy issues related to data and legal protection. Furthermore, family doctors believed that parents disapproved of notification by name. However, a survey among young mothers revealed this not to be the case. Winning young mothers' approval depends largely on the positive attitude of the vaccinators. To implement the mandatory notification of vaccinations to the Health Department, it is necessary to dispel physicians' concerns and to inform young parents about the practical benefits. However, this places high demands on the Health Departments for maintaining immunization registries, communicating with physicians and notifying parents when immunisations are due or late.

Adult↗
PubMed2002

Generation of GW radiation pulses from a VUV free-electron laser operating in the femtosecond regime.

Experimental results are presented from vacuum-ultraviolet free-electron laser (FEL) operating in the self-amplified spontaneous emission (SASE) mode. The generation of ultrashort radiation pulses became possible due to specific tailoring of the bunch charge distribution. A complete characterization of the linear and nonlinear modes of the SASE FEL operation was performed. At saturation the FEL produces ultrashort pulses (30-100 fs FWHM) with a peak radiation power in the GW level and with full transverse coherence. The wavelength was tuned in the range of 95-105 nm.

Journal Article↗
PubMed1990

[The materials and border-zone micromorphology of a glass-ionomer cement cavity lining material].

The combination of various possibilities for sample preparation and investigation--the tinting penetration method, the ion beam slope cutting, the light and scanning electron microscopy--allow statements at the grind after different drying of the preparation mainly to the bond but also surface and filler shape of glass-ionomer cements. The dentine in the area of enamel-dentine-junction and of superficial root area is effectively closed by Ketac-Bond. Likewise, the bond with cover filling (Visio-Molar) can be considered without gaps except a single case. Crack propagations from the cement surface seem to related to pores and occur independently of type of drying especially in case of mechanical after treatment of already hardened cavity lining [correction of underfilling] material.

Dental Bonding↗
PubMed1988

[Quality assurance in Riva-Rocci blood pressure measurement: simultaneous sphygmomanometry with open and covered pressure display].

The indirect measurement of arterial blood pressure according to Riva-Rocci is one of the most frequently performed medical diagnostic procedures. When properly performed, this method yields accurate readings compared with intraarterial measurements. However, measurements by means of conventional sphygmomanometers are subject to observer error and variability. Therefore, to eliminate important sources of bias (terminal digit preference of the observer, rate of inflation and deflation of the cuff), and to quantify interobserver variability, a new sphygmomanometer has been developed. The new instrument makes possible "simultaneous-blind" blood pressure readings by two observers, according to the Riva-Rocci method. Simultaneous-blind blood pressure readings were made by four observers with experience in blood pressure determination. In 448 measurements made under resting conditions, values obtained by different observers with the new device were very consistent with each other: there were no differences in 50% of systolic and 43% of diastolic measurements. Differences of more than 5 mmHg were observed only in 9% of the systolic and 11% of the diastolic measurements. In 165 measurements made during exercise, the differences between blood pressure readings by different observers were larger (more than 5 mmHg in 40% of systolic and 35% of diastolic values). This variability among observers may be substantial in blood pressure readings made in therapeutic and epidemiologic studies, even when the observers are carefully selected and trained. Compared with the conventional open measurements, blind measurements (n = 100) gave mean values 2 mmHg lower, depending on heart rate and cuff deflation rate. The new sphygmomanometer allows quantification and control of the variability among observers during both open and blind measurements.

Adult↗
PubMed1981

[Determination of glucoamylase activity using an enzyme electrode].

Both, the differing definitions of glucoamylase activity and the different determination of the fragment, glucose, preclude a comparison of literature data. Specific enzymatic determination of the fragment, glucose, with an enzyme electrode is proposed. The contribution describes the manufacture of an enzyme electrode from a commercial pO2-electrode and immobilized GOD. The measurement may be carried out by kinetic determination of utilized oxygen or oxygen peroxide formed. The continuous measurement proposed for serial experiments is made via a calibration curve, whose regression coefficient was determined to be 0.999. Depending on the enzyme activity, the reaction time is between 15 s and 3 min.

Electrodes↗
PubMed1979

[Epidemiological studies for the need of psychotherapy].

Preliminary results obtained in epidemiological studies are reported. The data obtained shows extensive need for psychotherapy, with marked differences between urban and rural communities. Considerations on the present situation in psychotherapy are given and suggestions made for changes in the present system of treatment.

Education↗
PubMed1979

[Urodynamic studies on normal bladders and bladders in metabolic disorders using diabetes mellitus as an example].

In various diseases of the kidney and the urinary bladder, in disturbances of potency and diseases of the outer genital the diabetes mellitus play an essential role. It was the aim the present investigations to establish with the help of manometric examinations of the urinary bladder in diabetics as well as in a comparative group which had no disturbed metabolism in what extent there exist objectively provable differences of the parameters chosen by us. From the results is to be stated that in diabetics, despite a slight increase of the capacity of the urinary bladder, a significant increase of the sphincter opening pressure and of the voluntary tonus of the sphincter is present. We explain these changes as an expression of a beginning disturbance of the innervation of the urinary bladder. In males of this age group from this result disturbances of miction which may lead to incorrect judgments, particularly in connection with a prostatic adenoma.

Adult↗