Over 5 years of daily hard X-ray (.20 keV) monitoring of the 2 minute accretion-powered pulsar GX 114 with the Compton Gamma Ray ObservatoryyBATSE large-area detectors has found nearly continuous rapid spin-down, interrupted by a bright 200 day spin-up episode. During spin-down, the torque becomes more negative as the luminosity increases (assuming that the 20–60 keV pulsed flux traces bolometr...

changed in response to the fear of AIDS, focusing on the contraceptive behavior of single men and women. We also analyze recent trends in condom use that may have been influenced by increasing fear of sexually transmitted diseases (STDs), as well as by contraceptive needs. We distinguish the percentages of men and women who currently use condoms (at the time of the survey), who have ever used c...

High-resolution mass spectrometry (MS)-based proteomics is a powerful method for the identification of soluble protein complexes and large-scale affinity purification screens can decode entire protein interaction networks. In contrast, protein complexes residing on chromatin have been much more challenging, because they are difficult to purify and often of very low abundance. However, this is c...

The aim of this study was to investigate the relationship between visual evoked potentials (N1, P2, N2, P3 and Sw) and levels of neuroticism, psychoticism and depression. Based on previous research, longer EP-latencies were expected in more depressed subjects, and smaller EP-amplitudes in subjects with higher levels of neuroticism and psychoticism. The sample consisted of female psychology stud...

Cloud point extraction (CPE) has been used for the preconcentration of cadmium, after the formation of a complex with 1, 5-bis(di-2-pyridylmethylene) thiocarbonohydrazide (DPTH), and further determination by flame atomic absorption spectrometry (FAAS) using Triton X-114 as surfactant. The main factors affecting the CPE, such as concentration of Triton X-114 and DPTH, pH, equilibration temperatu...

This work describes the optimization of a cloud point extraction (CPE) method for casein proteins from cow milk samples. To promote phase separation, polyoxyethylene(8) isooctylphenyl ether (Triton X-114) and sodium chloride (NaCl) were used as nonionic surfactant and electrolyte, respectively. Using multivariate studies, four major CPE variables were evaluated: Triton X-114 concentration, samp...