We present a status report of an ongoing effort to develop robust tunable all-solid-state sources up to 1900 GHz for the Heterodyne Instrument for the Far Infrared (HIFI) on the Herschel Space Observatory. GaAs based multi-chip power amplifier modules at W-band are used to drive cascaded chains of multipliers. We have demonstrated performance from chains comprised of four doublers up to 1600 GH...

[1] We compare historical global temperature time series, based on bias-adjusted sea-surface temperatures with independent temperature time series, for the upper 20 meter layer of the ocean based on the latest update of an historical hydrographic profile data set. Despite the two underlying data sets being different in number of data points, instrumentation and applied adjustments, both of the ...

J. Batle, M. Casas, A. Plastino, and A. R. Plastino Departament de Física, Universitat de les Illes Balears and IMEDEA-CSIC, 07122 Palma de Mallorca, Spain Argentina’s National Research Council (CONICET), Casilla de Correo 727, 1900 La Plata, Argentina Department of Physics, National University La Plata, Casilla de Correo 727, 1900 La Plata, Argentina Faculty of Astronomy and Geophysics, Nation...

This article constructs new life tables for the white population of the United States in each decade between 1790 and 1900. Drawing from several recent studies, it suggests best estimates of life expectancy at age 20 for each decade. These estimates are fitted to new standards derived from the 1900-02 rural and 1900-02 overall DRA life tables using a two-parameter logit model with fixed slope. ...

Here we describe effects of neuroactive peptides, vasopressin, vasopressin fragment, and its analog, NC-1900, on cognitive functions and CO2-induced amnesia. Vasopressin (AVP1-9) and its fragments are synthesized in the central nervous, and it is well known to regulate diuretic action. However, vasopressin receptors are distributed not only in the supraoptic nucleus and the paraventricular nucl...

Mexicans required the stimulus of the influenza epidemic of 1918 before they established a state board of health. He describes the efforts to eradicate malaria between 1923 and 1947, and the contemporaneous success in reducing high infant and maternal death rates. After analysing changes in physician supply and distribution since statehood, Spidle concludes with an analysis ofthe growth of boar...

We measured the period and spin-down rate for SGR 1900+14 during the quiescient period two years before the recent interval of renewed burst activity. We have shown that the spin-down age of SGR 1900+14 is consistent with a braking index of ∼1 which is appropriate for wind torques and not magnetic dipole radiation. We have shown that a combination of dipole radiation, and wind luminosity, coupl...

A bayesian analysis of the world's p(γ,K^+)Λ data is presented. From the proposed selection of 11 resonances, we find that the following nucleon resonances have the highest probability of contributing to the reaction: S11(1535), S11(1650), F15(1680), P13(1720), D13(1900), P13(1900), P11(1900), and F15(2000). We adopt a Regge-plus-resonance framework featuring consistent couplings for nucleon re...

To explore the intracellular pathways activated by vasopressin receptors, the effects of arginine vasopressin (AVP) and its analogues mediating glycine (Gly)-induced Cl(-) currents (I(Gly)) were examined in acutely dissociated rat hippocampal CA1 neurons using the whole-cell patch recording technique. AVP and its analogues inhibited I(Gly) in a concentration-dependent manner. The inhibitory act...