A technique of applying lag screws for treating fractures of the anterior mandible is presented. A review of 41 patients who had lag screws placed to treat such fractures showed that it is a successful method of providing rigid internal...

The doublet structure of the 1s-exciton of simple cubic thallous chloride is quantitatively explained as due to coulombic and exchange interaction, which leads to intra- and intervalley scattering between K=0 excitons Air Max 90 Og form...

The question of the existence and uniqueness of an M-matrix which is a square root of an M-matrix is discussed. The results are then used to derive some new necessary and sufficient conditions for a real matrix with nonpositive off diag...

Treatment of arenes carrying methyl or primary alkyl groups in tetrahydrofuran solution with potassium tert-butoxide activated butyllithium followed by Air Max 90 reaction with formaldehyde gives 2-arylalkanols. In contrast, if prior to...

The inductive event in the immune response is the recognition of peptides bound to human major histocompatibility complex (MHC)-encoded HLA molecules by T cells. Here, Christian Meyer, Jürgen May and Leonhard Schnittger discuss some im...

Thin sections of Ureaplasma urealyticum were examined by electron microscopy. Most cells were spherical or ovoid, 0.4–0.8 μm in diameter. Utilising previously described monoclonal antibodies and protein A-gold, three major antigens w...

Recent studies of the growth rate of the different faces of potash alum crystals have revealed that these grow with variable growth rates. This phenomena can be considered on two time scales. In the long term “constant” growth remai...

The mammalian zygote-mediated CRISPR/Cas system can efficiently generate targeted genome-modified animals. However, this system is limited by the risk of off-target mutations. Here we show that offset-nicking by Cas9 nickase and paired ...

The effects of radial clearance, viscosity of the lubricating oil, and inlet pressure, on the oil whip phenomena of flexible rotors were studied experimentally. The observations are compared with the stability zones that can be predicte...

Studies were made of the influence of the permeability of a magnetic conductor made of cast iron (3.2% carbon) and steel (0.2% carbon) on the efficiency of strong-field electromagnets. The permeability was modified within the range 1000...

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