The microscopic structure of Langmuir films of derivatized gold nanoparticles has been studied as a function of area/particle on the water surface. The molecules (AuSHDA) consist of gold particles of mean core diameter D approximately 22 angstroms that have been stabilized by attachment of carboxylic acid terminated alkylthiols, HS-(CH2)15-COOH. Compression of the film results in a broad platea...

Supercritical CO2 (scCO2) has been used to facilitate reactions in thin film bilayers between functionalized polystyrene and poly(methyl methacrylate) at temperatures far below the glass transition temperatures of the respective polymers. Secondary ion mass spectrometry (SIMS) is used to monitor the reaction progression directly by measuring the interfacial excess of deuterated PS. Complementar...

The microscopic structure of Langmuir films of derivatized gold nanoparticles has been studied as a function of area/particle on the water surface. The molecules (AuSHDA) consist of gold particles of mean core diameter D;22 Å that have been stabilized by attachment of carboxylic acid terminated alkylthiols, HS– (CH2)15– COOH. Compression of the film results in a broad plateau of finite pressure...

STUDY DESIGN Retrospective analysis. OBJECTIVE To evaluate the correlation and reliability of cervical sagittal alignment parameters obtained from lateral cervical radiographs (XRs) compared with lateral whole-body stereoradiographs (SRs). METHODS We evaluated adults with cervical deformity using both lateral XRs and lateral SRs obtained within 1 week of each other between 2010 and 2014. XR...

Fi(r, y1, . . . , yn) = 0 ∀i has a solution (y1, . . . , yn) ∈ R iff r ∈ D. Equivalently, if there is a (possibly reducible) algebraic variety XR over R and a morphism π : XR → A 1 R such that D = π(XR(R)). In this situation we call dioph(XR, π) := π(XR(R)) ⊂ R the diophantine set corresponding to XR and π. A characterization of diophantine subsets of Z was completed in connection with Hilbert’...

The purpose of this study was to demonstrate asymmetric radiation dose distribution to the breasts in coronary angiography. Gafchromic XR-QA2 film was used as an area dosimeter to capture the asymmetric dose distribution to the breasts at various tissue depths in an anthropomorphic phantom. A selection of tube angulations were used under a controlled experiment and during a mock coronary angiog...

BACKGROUND This study (VERxVE) compared the efficacy and safety of the new nevirapine extended-release (NVP XR) formulation dosed once daily with NVP immediate release (IR) twice daily in treatment-naive patients. METHODS Randomized, double-blind, double-dummy, parallel group study of HIV-1-infected adult patients with baseline viral load (VL) ≥ 1,000 copies/ml and CD4(+) T-cell count of >50-...

Road simulation algorithm is the key point of developing a next-generation road simulation testing system. Traditional algorithms need to excite the test system to estimate the FRF matrixes and then iterate again and again until the real response approaches the expect response. The purpose of this paper is to develop a real-time control algorithm of vehicle road simulation test. Road simulation...