The adsorption behavior of gold (Au), silver (Ag) and palladium (Pd) on nanometer-size titanium dioxide (NSTD) at low concentrations was studied using inductively coupled plasma atomic emission spectrometry (ICP-AES). A preconcentration procedure of the analytes was carried out using NSTD as a solid-phase extractant before their determination by ICP-AES. The optimum conditions for adsorption we...

Female genital ulcer is a disease that affects a large number of women, and its etiologic diagnosis can be difficult. The disease may increase the risk of acquiring HIV. Genital ulcer may be present in sexually transmitted diseases (STD)--syphilis, chancroid, genital herpes, donovanosis, lymphogranuloma venereum; and other non-STD disorders (NSTD)--Behçet's syndrome, pemphigus, Crohn's disease,...

Contraction of muscles results from the ATP-coupled cyclic interactions of the myosin cross-bridges with actin filaments. Macroscopic parameters of contraction, such as maximum tension, speed of shortening, or ATPase activity, are unlikely to reveal differences between the wild-type and mutated (MUT) proteins when the level of transgenic protein expression is low. This is because macroscopic me...

Table 1. Nstd/mod is the sum of supra-threshold voxels (p<0.001 unc., clustersize 5) for different ROIs (see legend below) found in the standard and the modified EPI datasets for the contrasts rewardpunishment, reward-baseline and punishment-baseline. Zstd/mod specifies the maximal Z-score. ROI 1: Insula, ROI 2: Amygdalae, ROI 3: Putamen, ROI 4: Thalamus, ROI 5: Caudate, ROI 6: Parahippocampal ...

Linear anomalies are important in the interpretation of gravity and magnetic data because they indicate some important structural features. In this study, a method is proposed to extract lineaments which may be difficult to recognize. It is based on the convolution between the templates obtained from the second horizontal derivative of the theoretical anomaly due to a truncated horizontal plate...

he National Security Technology Department (NSTD) began with a single program and a single mission—the security of the Navy’s strategic submarine force. Over the past 25 years of its existence, the department has evolved to successfully accommodate disruptive changes in the external environment. New missions emerged in areas closely aligned with existing endeavors such as undersea surveillance,...