BACKGROUND Repeated sterilizations cycles cause undesirable alterations in the material properties of the instruments, such as corrosion, alterations in the hardness of the metal and the loss of the cutting sharpness of the instrument. This research examined the effect of repeated dry heat sterilization and autoclaves cycles on carbon steel (CS) and stainless steel (SS) curettes during the scal...

Hydrocarbon contamination accumulated on titanium (Ti) implant surfaces during storage and sterilization is unavoidable and difficult to remove. It impairs the bioactivity of implants, restricts initial interactions between implants and the surrounding biological environment, and has become a common challenge for Ti implants. To overcome this problem, sterilization was considered as the final s...

Problems of obtaining high-quality crop products, which are a raw material for the food industry, distinguished by technological and environmental complexity. The combination plants natural characteristics, state soil climatic factors plays decisive role in grain, suitable its further processing. Research has been carried out on low-humus contaminated soil. influence fertilizers quality indicat...

Biological Control of Weeds in Compacted Soil Cultures: V. P. Sokoloff 271 Technical Papers Absorption Spectra of Chlorophylls in Solutions at -Low Temperatures-Equilibria Between Isomers: Simon Freed and Kenneth M. Sancier _ 275 The Purlnonay Circulation as a Source of Leucocytes-bid Platelets in Man: H. R. Bierman, K. H. Kelly/,F. W. King, and N. L. Petro,kis 276 Effects of Male Hormone upon ...

The producing organism, strain FH-A 6607, was isolated from a soil sample collected near Rantepao, Sulawesi Island (Indonesia) and exhibited a characteristic brown to yellow colored mycelium. The typical conidiophores were found to be in close morphological analogy to gliocladium and are arranged in self-contained long rows (Fig. 1). Combined with further taxonomical investigations the strain F...

conclusions the present study showed that the iodine concentration is not decreased during the heating process in sterilization, indicating that supplemented sterilized milk could be a good alternative vehicle for dietary iodine in the prevention of iodine deficiency. results the inclusion of ki in the diet of the dairy cows in these 2 separate experiments increased their milk iodine levels. pa...

It is not my intention at this time to give the details of extended experiments upon soil sterilization and its effects; nor to enter any special criticisms upon the work of other investigators. I wish only to call attention to some facts, observations, and conditions of the work centered about cereal cropping, and experiments upon soils which may indicate that a new light may be thrown upon th...

BACKGROUND Sterilization failure due to 'tubal non-occlusion' or 'wrong structure sterilization' is considered negligent, whereas 'spontaneous tubal recanalization' or 'fistula formation' is considered non-negligent. We examined whether interval to pregnancy failure was predictive of a negligent rather non-negligent failure mechanism. We aim to test this hypothesis in a selected population seri...