A characterization study was performed on the spent oil shale (oil shale ash) obtained from the combustion of Jordanian oil shale. This characterization utilized different analytical techniques. These include scanning electron microscope with energy dispersive spectrum analysis, X-ray fluorescence, X-ray diffraction and Qemscan. During the combustion process, minimal fragmentation was encounter...

Sea urchin eggs are arrested in G1 of the first mitotic cell cycle. Fertilization triggers release from G1 arrest and the onset of DNA synthesis about 20 minutes later, even when protein synthesis is blocked. Here we describe extracts from eggs and S-phase embryos that reproduce this stage-specific pattern of DNA synthesis. Fertilized egg extracts formed nuclear membranes around decondensed Xen...

A. Acute Infective Hepatitis (i) The pre-icteric phase, with pyrexia and intestinal manifestations dominating the picture. (ii) The icteric phase, with jaundice as the dominant manifestation. The type varies from the fulminating to the average type of case with jaundice lasting two to three weeks. (iii) The post-hepatitis syndrome, the stage of symptoms without signs. (iv) Infective hepatitis w...

We derive the grand partition function of protein chain by restricting dihedral angles to exist only in five distinct states and assume that the dominant noncovalent potential is the hydrogen bond interaction. We investigate the phase transition of protein secondary structures and the order of the transition through analyzing its heat capacity. Our theory demonstrates the presence of α-β-coil s...

Various binary and non-binary modulation techniques, in conjunction with appropriate detection techniques, are compared in terms of their spectral efficiencies and signal-to-noise ratio requirements, assuming amplified spontaneous emission is the dominant noise source. These include (a) pulse-amplitude modulation with direct detection, (b) differential phase-shift keying with interferometric de...

Abbreviations: acute lymphoblastic leukemias, (ALLs); acute myeloid leukemia, (AML); arsenic trioxide, (ATO); B-cell chronic lymphocytic leukemia, (B-CLL); blast crisis, (BC); chronic lymphocytic leukemias, (CLL); CML-Acceleration Phase/Blast Crisis, (CML/AP/BC); CML-Bone Marrow Transplantation patients, (CML-BMT); CML-Chronic Phase patients, (CML/CP); DNA binding domain, (DBD); dominant-negati...

Identities and inequalities are proved for the derivatives of order parameters and correlation functions of the Ising spin glass along a line in the phase diagram. The results serve as additional evidence that the ferromagnetic phase is composed of two regions, one with strong ferromagnetic ordering and the other with the effects of disorder dominant. The Nishimori line marks a crossover betwee...

The Intervet Symposium 'Control and Regulation of Folliculogenesis' took place at the Annual Conference of the Society for the Study of Fertility in University College, Dublin in July, 1995. Five papers were presented, of which abstracts have been published. Discussion centred on monotocous species and principally addressed the question 'How is the ovulatory follicle selected and nurtured?' Man...

Vicinal surfaces are known to exhibit morphological instabilities during step-flow growth. Through a linear stability analysis of step meandering instabilities, we investigate two effects that are important in many heteroepitaxial systems: elastic monopole-monopole interactions arising from bulk stress and the Ehrlich-Schwoebel (ES) barriers due to the asymmetric adatom incorporation rates. The...