Barter and Business Cycles: A Comment and Further Empirical Evidence

The purpose of this comment is a critical evaluation of the empirical analysis made by Cresti (2005) and her finding that commercial barter behaves differently than corporate barter during the course of business cycles. Here, we correct the arbitrary replacement of the missing observations by filling them with forecasts using the Box-Jenkins ARMA and Kalman filter methods before performing the unit root and cointegration tests. Although the ECM estimates for various measures of business cycle are occasionally inconsistent, overall the inventory measures and capacity utilization results suggest that barter transactions are counter-cyclical regardless of the size of the business. Additionally, we find that barter rises with inflationary trend, dissemination of access to computer technology, tax rates and tax laws requiring disclosure of barter transactions.Barter, Business Cycles, Error Correction Model, Box-Jenkins ARMA

Maximizing Societal Contributions of Latino Adults by Investing in Latino Children's Health Care

Focuses on the lack of preventive care and health insurance coverage for Latino children, and how this affects their health and school performance and impacts their ability to contribute as adults to California's economy and society

Latonduines A and B, New Alkaloids Isolated from the Marine Sponge Stylissa carteri:??? Structure Elucidation, Synthesis, and Biogenetic Implications

Part of research collaboration results between Fac Mar Fish UNHAS and EOS UBCLatonduines A (6) and B (7), two new alkaloids with unprecedented heterocyclic skeletons, have been isolated from the Indonesian marine sponge Stylissa carteri. The structures of the latonduines were elucidated by analysis of spectroscopic data and confirmed by the total synthesis of latonduine A (6). It is proposed that ornithine is the biogenetic precursor to the aminopyrimidine fragment of the latonduines

Scalarane-Based Sesterterpenoid RCE-Protease Inhibitors Isolated from the Indonesian Marine Sponge Carteriospongia foliascens

part of research collaboration between Mar Fish Faculty of Unhas and EOS UBCTwo new 20,24-bishomo-25-norscalaranes, compounds 1 and 2, and two new and two known 20,24-bishomoscalaranes, compounds 3???6, have been isolated from the Indonesian marine sponge Carteriospongia foliascens. The structures of 1???6 were determined by spectroscopic analysis. Compounds 1 and 3???6 inhibit RCE-protease activity

Observations of Binary Stars with the Differential Speckle Survey Instrument. VII. Measures from 2010 September to 2012 February at the WIYN Telescope

We report on speckle observations of binary stars carried out at the WIYN Telescope over the period from September 2010 through February 2012, providing relative astrometry for 2521 observations of 883 objects, 856 of which are double stars and 27 of which are triples. The separations measured span a range of 0.01 to 1.75 arc seconds. Wavelengths of 562 nm, 692 nm, and 880 nm were used, and differential photometry at one or more of these wavelengths is presented in most cases. Sixty-six components were resolved for the first time. We also estimate detection limits at 0.2 and 1.0 arc seconds for high-quality observations in cases where no companion was seen, a total of 176 additional objects. Detection limits vary based on observing conditions and signal-to-noise ratio, but are approximately 4 magnitudes at 0.2 arc seconds and 6 magnitudes at 1.0 arc seconds on average. Analyzing the measurement precision of the data set, we find that the individual separations obtained have linear measurement uncertainties of approximately 2 mas, and photometry is uncertain to approximately 0.1 magnitudes in general. This work provides fundamental, well-calibrated data for future orbit and mass determinations, and we present three first orbits and total mass estimates of nearby K-dwarf systems as examples of this potential