Beschreibung einiger neuer Perforations- und Extraktions-apparate

Ohne ZusammenfassungMitteilung aus der önochemischen Versuchsstation in Geisenheim.     

Untersuchung von Mosten des Jahres 1912 aus den preu?ischen Weinbaugebieten

Ohne ZusammenfassungMitteilung aus der Önochemischen Versuchsstation Geisenheim a. Rh.     

Untersuchung von Mosten des Jahres 1911 aus den preu?ischen Weinbaugebieten

Ohne ZusammenfassungMitteilung aus der Önochemischen Versuchsstation Geisenheim a. Rh.     

The surface tension of HFC refrigerants and mixtures

The surface tension of the refrigerants R32, R125, R134a, R143a and R152a, as well as the binary refrigerant mixtures R32-R125, R32-R134a, R125-R134a, R125-R143a, R125- R152a, R143a-R134a and R134a-R152a, and the commercially available ternary mixtures R404A and R407C was measured across the temperature range from −50 to 60°C using a measuring unit based on the capillary rise method. Different formulations for calculation of the surface tension of the binary and ternary mixtures on the basis of the surface tension of the pure refrigerants were tested. With an approach based on mass proportions in the mixture, a good correspondence between the measured and calculated values was achieved.     

Contribution of 3,5,3''-tri-iodothyronine produced locally from thyroxine in several maternal tissues of the near-term pregnant rat

We determined prospectively the prevalence of avascular osteonecrosis (AON) by magnetic resonance imaging (MRI) of both lower limbs in a group of 40 systemic lupus erythematosus (SLE) patients, and correlated the results with their serum antiphospholipid antibody (APL Ab) status and their glucocorticoid (GC) intake. APL Ab were detected by anticardiolipin ELISA and by lupus anticoagulant assays. Cumulated prednisolone doses were computed by chart review. The prevalence of AON was 37.5%, with most patients being asymptomatic despite involvement of multiple sites. The number of epiphyseal, metaphyseal and diaphyseal AON sites per patient did not differ between APL Ab-positive and APL Ab-negative patients nor between patients with high and low APL Ab titres. By contrast, a striking correlation was found between the prevalence and severity of AON and GC therapy. In conclusion, this prospective MRI study indicates that the prevalence of AON in SLE patients correlates strongly with GC therapy, but not with APL Ab status.     

Position specificity of Ki-ras oncogene mutations during the progression of colorectal carcinoma

Accusations of excessive donor-site morbidity as an unavoidable sequela of fasciocutaneous flaps has negatively prejudiced this option for coverage of adjacent defects such that a muscle flap, if available, would instead be preferable even at the risk of loss of marginally expendable function. Our entire experience with 147 juxtaposed muscle-type and 122 fascia-type flaps was analyzed to confirm instead that actual donor-site morbidity was extremely uncommon for either type. Overall, there were 20 (14 percent) complications of the donor site of muscle flaps and 17 (14 percent) for fascial flaps, with only 4 (3 percent) major complications in each group. This almost minuscule incidence of major morbidity was about five times less than the rate of major complications involving the flaps themselves (14 percent for muscle and 15 percent for fascial flaps). Unless aesthetic considerations are of paramount importance, at least from a functional standpoint, no difference in donor-site complications could be discerned between these two disparate flap types. However, the skin-grafted donor site of the fasciocutaneous flap results in a significant cosmetic disadvantage similar to that of a large musculocutaneous flap.     

Allergen-avoidance measures in homes of house-dust-mite-allergic asthmatic patients: effects of acaricides and mattress encasings

This double-blind, placebo-controlled study investigated whether the application of an acaricide (Acarosan) on mattresses and on textile floor coverings in living rooms and bedrooms can contribute to improvement in lung function and airway hyperresponsiveness in 40 adult asthmatic patients sensitized to house-dust mite. In a second group of 19 patients who refused chemical intervention, the clinical effects of application of allergen-impermeable mattress encasings were studied. In all three treatment groups, Der p 1 levels in mattress dust were statistically significantly decreased after 12 months. However, this decrease was much greater in the group who received mattress encasings (final mean level 430 ng/g) than in groups with acaricide- or placebo-treated mattresses (final mean levels 1730 and 2100 ng/g, respectively). Treatment of textile floors with either Acarosan or placebo chemical caused a statistically significant decrease in the level of the house-dust-mite allergen Der p1 in floor dust. In the group with mattress encasings, no significant changes of floor dust Der p 1 were found. Airway hyperresponsiveness (as measured by the PC20 histamine) improved significantly in the mattress cover group after 6 months. The Acarosan group also showed a small but statistically significant improvement after 12 months.