Newly-formed pairs of 16-cell blastomeres were collected by periodic observation of isolated 8-cell blastomeres. Any pairs formed by division were recovered and classified as being composed of 1/16 blastomeres that differed in size or were of similar size. All of the latter and some of the former were then cultured for periods of up to 20h. The remaining pairs of different-sized blastomeres wer...

This work proposes a new modeling of hydrolysis reaction in simulated seawater solution (35 g/L NaCl) with alloys containing α-Mg and Long Period Stacking Ordered (LPSO) phases. Alloys different chemical compositions or thermal treatments were synthesized, leading to (i) microstructures, (ii) over LPSO phase fractions (iii) type (18R 14H). Classical nucleation growth equation is used as an indi...

The microstructures of ¡-Mg, long-period stacking ordered (LPSO) phases, and kink bands in a Mg­Y­Zn alloy were observed by transmission electron microscopy (TEM). The results showed that extruded Mg97Zn1Y2 alloy included different kinds of phases: 2H-Mg, 2H-Mg with many stacking faults, 14H and 18R. Kink bands tended to occur in areas where there were many intermetallic compounds. The element ...

An osmotic, oral, controlled-release capsule is described. This capsule provides drug delivery at fixed delivery rates (T(80%)=6 or 14h) independent of drug properties (e.g., solubility) or drug loading, thereby allowing rapid development of investigational or commercial drugs, especially for proof-of-concept type clinical studies. The capsule body and cap are prepared with cellulose acetate an...

In order to study the structure-activity relationships of xanthene derivatives, four series of N-substituted 14-aryl-14H-dibenzo[a,j]xanthene-3,11-dicarboxamide derivatives were synthesized. The structures of all compounds were identified by ¹H-NMR, HR-MS and IR spectra, in which compounds 6a-h were further identified by 13C-NMR spectra. The in vitro antitumor activity of the synthesized compou...

A new pulsar, 1SAX J1452.8−5949, was discovered during a BeppoSAX galactic plane survey on 1999 July 20 at R.A.=14h 52m 49. s3, Dec=−59◦ 49′ 18′′ (J2000) with a 90% confidence uncertainty radius of 50′′. Coherent pulsations were detected with a barycentric period of a 437.4±1.4 s. The X-ray spectrum can be modeled by a power-law with a photon index of 1.4±0.6 and absorption consistent with the ...

Two different geometries have been proposed to explain the dust emission from pre-mainsequence stars: flared disks and “classical” geometrically-thin optically-thick disks imbedded in optically thin halos. We show that only imaging observations can differentiate these two morphologies because flux measurements can never distinguish between them. A model constructed with one geometry implies an ...

Artificial diets prepared with wheat germ, soybean protein, dextrosol, potato starch, sucrose, cellulose, soybean or sunflower oil, and vitamin solution for rearing Nezara viridula (L.) and Euschistus heros (Fabricius) were tested under controlled temperature (25 +/- 1 degrees C), RH (60 +/- 10%), and photophase (14h). Three diets were tested and compared with the natural diet privet [soybean a...