The asymmetric unit in the title thio-urea derivative, C(13)H(19)N(3)S, comprises three independent mol-ecules (A, B and C). The thio-urea groups are superimposable for the three mol-ecules, but there are significant conformational differences. Mol-ecules A and B are approximate mirror images of each other, and mol-ecule C has an inter-mediate conformation. The dihedral angles between the thio-...

The silo discharge process is studied by molecular dynamics simulations. The development of the velocity profile and the probability density function for the displacements in the horizontal and vertical axis are obtained. The PDFs obtained at the beginning of the discharge reveal non-Gaussian statistics and superdiffusive behaviors. When the stationary flow is developed, the PDFs at shorter tem...

Limbs have a proximodistal axis that usually is not apparent early in development, a striking example of epigenesis. The proximodistal axis was the subject of experimental and theoretical study before any molecular genetic understanding emerged. As developmental genetic studies in Drosophila advanced, the descriptive polar coordinate model of the 1970s evolved into an understanding of how preex...

BACKGROUND Anatomical dead space is usually measured using the Fowler equal area method. Alternative methods include the Hatch, Cumming, and Bowes methods, in which first, second, and third order polynomials, respectively, fitted to an expired CO2 volume vs expired volume curve, intercept the x-axis at the anatomical dead space. This study assessed systematic errors and susceptibility to noise ...

INTRODUCTION Anatomical markers can help to guide lag screw placement during surgery for internal fixation of fifth metatarsal base fractures. This study aimed to identify the optimal anatomical markers and thus reduce radiation exposure. METHODS A total of 50 patients in Huashan Hospital, Shanghai, China, who underwent oblique foot radiography in the lateral position were randomly selected. ...

The mature striatum is divided into a labyrinthine system of striosomes embedded in a surrounding matrix compartment. We pulse-labeled striosomal cells (S cells) and matrix cells (M cells) in cats with (3) H-thymidine and followed their distributions during fetal and postnatal development. We identified three maturational phases in S-cell distributions. The early phase (sampled at embryonic day...

Osteotomy procedures around the knee can alter the biomechanical axis of the knee, thereby shifting the load from one compartment to another. This can be used to unload an arthritic painful compartment or to decrease the weight experienced by a cartilage restoration procedure. Recent clinical and biomechanical studies have emphasized the importance of correcting the weight bearing axis in a car...

Since these Tarnier forceps were discussed among us they have been discussed in many associations, and by many writers, and the voices are still so discordant that it seems as if a final judgment as to their value were still far off. I am anxious to bring them up again in the Society, that we may have an opportunity of considering some of the objections that have been advanced to their use, and...

During organogenesis in all multi-cellular organisms, axial patterning is required to transform a single layer organ primordium into a three-dimensional organ. The Drosophila eye model serves as an excellent model to study axial patterning. Dorso-ventral (DV) axis determination is the first lineage restriction event during axial patterning of the Drosophila eye. The early Drosophila eye primord...