C 3 H 7 , R2 = C 3 H 7 ) , H34(R! = C 3 H 7 , R2 = C 4 H 9 ) and H75(R, = C7H15, R2 = C 5 H„) have been investigated by differential scanning calorimetry. thermal optical microscopy and X-ray diffraction methods/Enthalpy changes of The different phase transitions for these compounds have been determined. H33 exhibits smectic B and nematic phases, whereas H34 and H75 exhibit only smectic B phase...

BACKGROUND the relationship between muscle mass and physical performance has not been consistent among studies. OBJECTIVE to clarify the relationship between muscle mass and physical performance in older adults with weak muscle strength. DESIGN cross-sectional analysis using the baseline data of 542 older men and women from the Korean Longitudinal Study on Health and Aging. METHODS dual X...

It is demonstrated here that in Escherichia coli, the phosphorylated form of the glucose-specific phosphocarrier protein IIA(Glc) of the phosphoenolpyruvate:sugar phosphotransferase system is an activator of adenylyl cyclase and that unphosphorylated IIA(Glc) has no effect on the basal activity of adenylyl cyclase. To elucidate the specific role of IIA(Glc) phosphorylation in the regulation of ...

It is demonstrated here that in Escherichia coli, the phosphorylated form of the glucose-specific phosphocarrier protein IIA of the phosphoenolpyruvate:sugar phosphotransferase system is an activator of adenylyl cyclase and that unphosphorylated IIA has no effect on the basal activity of adenylyl cyclase. To elucidate the specific role of IIA phosphorylation in the regulation of adenylyl cyclas...

I estimate Modified-Dynamics (MOND), median M/L values for recently published catalogues of galaxy groups. While the median, Newtonian M/L values quoted for these catalogues are (110 − 200)h75(M/L) , the corresponding values for MOND are less than 10 (M/L) (where the mass includes contributions from galactic, and intra-group gas). Subject headings: Galaxies: kinematics and dynamics; Cosmology: ...

Bos taurus and indicus cattle subspecies present different capabilities in coping with situations of elevated temperatures, the latter being more tolerant to heat stress. Thus, some breeding programs crossed these produce a high producing yet heat-tolerant breed (Girolando). Nineteen Holstein (H100) 19 Girolando cows [(½ × Gir (H50) ¾ (H75)] similar milk production were used six-day experime...

In the present paper we describe the structure of the Chinese health care system and sketch its future development. We analyse issues of provider incentives and the actual burden sharing between government, enterprises and people. We further aim to identify a number of current problems and link these to a discussion of future challenges in the form of an aging population, increased privatizatio...

We use the Véron-Cetty & Véron (2000) catalog (VV) of 13 213 quasars to investigate their possible physical grouping over angular scales 10′′ ≤ ∆θ ≤ 1000′′. We first estimate the number of quasar pairs that would be expected in VV assuming a random distribution for the quasar positions and taking into account observational selection effects affecting heterogeneous catalogs. We find in VV a stat...

We examine the long-term effects of a 1998–2003 randomized experiment in Tulsa, Oklahoma with Individual Development Accounts that offered low-income households 2:1 matching funds for housing down payments. Prior work shows that, among households who rented in 1998, homeownership rates increased more through 2003 in the treatment group than for controls. We show that control group renters caugh...

This paper examines if students’ college outcomes are sensitive to access to college admissions tests. I construct a dataset of every test center location and district policy in the United States linked to the universe of individual testing records and a large sample of college enrollment records. I find evidence that SAT taking is responsive to the opening or closing of a testing center at a s...