Since the eighties we have begun, in Brazil, a search for Post-T Tauri stars. Here we describe the main steps of this research that resulted in the discovery of the nearby TW Hya and Horologium associations. A very recent survey resulted in the detection of three different kinematical groups: 1) the Great Austral Young Association, which is a very extended complex region involving the Horologiu...

Pp. 489. With 144 Illustrations. p +pxtbook In the preface, it is stated that this /frv?simply toldon gonorrhoea; it is just a simP(e.s,uJ Well-merited Xt is not difficult to discover that tne ^ The success of this book is largely due to xn to dftte Present edition has been brought comp ^voerthermia, hy the inclusion of such subjects as yi trogenic sulfanilamide and its derivatives and upen amp...

In the crystal structure of the title compound, C(21)H(24)I(2)N(2)O(2), the two N atoms of the imidazolidine moiety are linked to the hy-droxy groups by intra-molecular O-H⋯N hydrogen-bonding inter-actions. The cyclo-hexane ring adopts a chair conformation and the heterocyclic ring to which it is fused has a twisted envelope conformation.

A hypothesis formulated by Otto Schmidt (21) to account for the carcinogenic activity of chemical substances has been widely exploited during the last 15 years (for review see [19]). The theory is based on the assumption that a very important step in the production of a cancer is an interaction between cellular constitu ents and a zone of the hydrocarbon which is par ticularly rich in it electr...

Each of the cyclohexenone rings in the title compound, C(23)H(27)NO(6), adopts a half-chair (envelope) conformation with the C atom carrying the methyl groups lying out of the plane defined by the five remaining C atoms; the O atoms lie to the same side of the mol-ecule as the respective >C(CH(3))(2) atoms. The hy-droxy and carbonyl O atoms face each other and are orientated to allow for the fo...

The structure of the title compound, C(11)H(13)Cl(2)NO(4)S, shows one sulfonamide-O atom to lie almost in the plane of the benzene ring [C-C-S-O = -178.7 (2) °] and the other to one side [C-C-S-O = -49.4 (3)°]. Lying to the other side is the amine residue, which occupies a position almost perpendicular to the plane [C-S-N-C = 70.2 (2)°]; the carb-oxy-lic acid group is orientated to lie over the...

Sylvain Leduc is a senior economist in the Research Department of the Philadelphia Fed. hy did inflation increase so dramatically from the 1960s to the 1970s? That’s a question economists are still debating. One possible theory, however, is that once people started believing inflation would rise, the Fed was forced to validate those expectations by increasing the money supply. Sylvain Leduc dis...

In the crystal of the title compound, C(10)H(11)NO(4), the hy-droxy group forms an O-H⋯O(carbon-yl) hydrogen bond with an adjacent molecule, so forming chains which extend along (010). Further weak C-H⋯O hydrogen-bonding associations give an infinite three-dimensional network structure.

The central Ni atom in the title compound, [Ni(C(29)H(29)N(3)O(4))]·2C(7)H(8), is coordinated in a distorted square-planar environment by three N atoms [Ni-N = 1.942 (3), 1.843 (3) and 1.853 (3) Å] and one O atom [1.868 (3) Å] of the tetradentate ligand. The conformation of the hy-droxy-butano-ate side chain is controlled by an inter-molecular hydrogen bond.

1 Summary In the first part. cross-cultural studies on vatues of children as retlected in parental heliefs, hehavior and parent-child relationships are discussed. Considerable differences between Japan and Germany are demonstrated which mainly concern the emotiomll quality of the mother-child relationship. Japanese as compared to German mothers showed more flexihle responsiveness across situati...