Quantum frequency conversion, the process of shifting an optical quantum state while preserving coherence, can be used to produce non-classical light at otherwise unapproachable wavelengths. We present experimental results based on highly efficient sum-frequency generation (SFG) between a vacuum squeezed 1064 nm and tunable pump source 850 ± 50 for bright 472 4 nm, currently limited by phase-ma...

In situ broad band sum frequency generation (SFG) spectroscopy was applied to clarify the oxidation mechanism of adsorbed CO on Pt(1 1 1) electrode in alkaline solution comparison with that acidic solution. A single SFG peak due on-top site observed region 1950 – 2150 cm−1. While proceeded a nucleation-growth mode via Langmuir–Hinshelwood (L-H) by reacting OH main 0.1 M HClO4 solution, oxidized...

This article is a functional description of an aspect textual grammar Vietnamese. The theoretical framework adopted for the Systemic Functional Grammar (SFG) as developed by Halliday and other systemicists. focus on Theme in clause simplex. Two main questions which form basis this are: (1) “what Vietnamese simplex how it recognised?”; (2) are delicate options available environment THEME they di...

To the Editor: In Greece, 6 spotted fever group (SFG) Rickettsia species have been detected in ticks: Rickettsia conorii, R. massiliae, R. aeschlimannii, R. sibirica mongolitimonae, R. slovaca, and R. rhipicephali (1). SFG species present characteristic clinical signs, including high fever, headache, and maculopapular rash; an inoculation es-char at the tick bite site is characteristic of some,...

Tinnitus, a phantom ringing, buzzing, or hissing sensation with potentially debilitating consequences, is thought to arise from aberrant spontaneous neural activity at one or more sites within the central nervous system; however, the location and specific features of these oscillations are poorly understood with respect to specific tinnitus features. Recent resting-state functional magnetic res...

Obligate intracellular bacteria of the genus Rickettsia must adhere to and invade the host endothelium in order to establish an infection. These processes require the interaction of rickettsial surface proteins with mammalian host cell receptors. A previous bioinformatic analysis of sequenced rickettsial species identified a family of at least 17 predicted "surface cell antigen" (sca) genes who...

A simple method is demonstrated to prepare spongy adenine-functionalized graphene (SFG) as interconnected, porous 3-dimensional (3D) network crinkly sheets. Such 3D network structure provides better contact at the electrode/electrolyte interface and facilitates the charge transfer kinetics. The fabricated SFG was characterized by X-ray diffraction (XRD), FTIR, scanning electron microscopy (FESE...

The redundant features existing in high dimensional datasets always affect the performance of learning and mining algorithms. How to detect and remove them is an important research topic in machine learning and data mining research. In this paper, we propose a graph based approach to find and remove those redundant features automatically for high dimensional data. Based on the framework of spar...

OBJECTIVE The neural mechanisms that give rise to the phantom sound of tinnitus are poorly understood. This study aims to investigate whether aberrant spontaneous brain activity exists in chronic tinnitus patients using resting-state functional magnetic resonance imaging (fMRI) technique. MATERIALS AND METHODS A total of 31 patients with chronic tinnitus patients and 32 healthy age-, sex-, an...