THE MICROBIOLOGIC PROCEDURE of Guthrie and Susi (1) is probably the most widely used screening technic for detecting phenylketonuria. The method of McCaman and Robins (2) and its modifications by Wong et al. (3) and Hsia et at. (4), as well as that of La Du and Michael (5) are the chemical procedures generally used as confirmatory tests. Hill et at. (6) have adapted the McCaman procedure to the...

PURPOSE The study of axial loading is essential to determine the properties of intervertebral disc. The objectives of this work are (1) to quantify the mechanical properties of porcine lumbar intervertebral discs under static and cyclic compressive loading, and (2) to determine the parameters of a five-parameter rheological model for porcine and compare them with those obtained for human lumbar...

We have used the expression patterns of genes known to be important during early Drosophila development to determine the segment-parasegment organization of the genital discs and to localize the three primordia in the male and female genital discs, engrailed (en) and hedgehog (hh) were used to locate posterior compartments in A8-A10, while cubitus interrupts (ci) localized the anterior compartm...

We review some observational aspects and theoretical models for the formation of the young massive stars in the central parsec of our Galaxy. It is concluded that an in-situ star formation model provides the best description of the data. One possible guess for the initial gas configuration is one circular and another eccentric gas discs, not necessarily coeval during their short lifetimes. The ...

We have isolated the discs overgrown gene of Drosophila and shown that it encodes a homolog of the Casein kinase I(delta)/(epsilon) subfamily and is identical to the double-time gene. However, in contrast to the weak double-time alleles, which appear to affect only the circadian rhythm, discs overgrown alleles, including bona fide null alleles, show strong effects on cell survival and growth co...

Background and purpose: Antibacterial properties of restorative materials are of great advantage as they control the progression of tooth decay. The use of self-adhesive composite materials has some benefits such as easier application and reduced treatment time. Because the antibacterial properties of restorative materials can play an important role in preventing secondary decay, especially in ...

STUDY DESIGN Clinical research and animal experiment. OBJECTIVE To investigate whether lumbar disc degeneration is associated with Propionibacterium acnes (P acnes) infection. SUMMARY OF BACKGROUND DATA The hypothesis that herniated discs may be infected with P acnes by way of bacteremia is remarkable. This may bring a tremendous change in treatment of lumbar disc herniation (LDH). However,...

The flow in an elastico-viscous fluid between two co-axial infinite rotating porous discs is considered for high cross flow Reynolds number. The discs are rotating with different angular velocity and the injection rate of the fluid at one disc is different from the suction rate of other disc. The effect of suction parameters on the velocity components have been investigated numerically and solv...