189 research outputs found
catena-Poly[[(1,10-phenanthroline-κ2 N,N′)copper(I)]-μ2-iodido]
The solvothermal reaction of copper(I) iodide and 1,10-phenanthroline (phen) in ethanol yielded the title polymeric compound, [CuI(C12H8N2)]n. The asymmmetric unit comprises one Cu+ cation, one I− anion and one phen ligand. Each Cu+ cation is in a distorted tetrahedral coordination by two iodide anions and two N atoms from a bidentate chelating phen ligand. The Cu+ cations are bridged through the iodide anions, leading to a zigzag chain structure extending parallel to [100]. There are π–π interactions among adjacent phen ligands of one chain [centroid–centroid distance = 3.693 (3) Å]
The Impact of Smoking Status on the Efficacy of Erlotinib in Patients with Advanced Non-small Cell Lung Cancer
Background and objective Erlotinib is a targeted treatment for advanced non-small cell lung cancer. Smoking status may be one of influencing factors of the efficacy of erlotinib. The aim of this study is to explore the impact of smoking status on the efficacy of erlotinib in patients with advanced non-small cell lung cancer. Methods Patients with nonsmall cell lung cancer who had been previously treated with at least one course of platinum based chemotherapy received 150 mg oral doses of erlotinib once daily until disease progression. Response rate, progression-free survival, overall survival were analyzed in the different smoking status groups. Kaplan-Meier method was used to analyze the survival rate. Results Fortyeight patients were enrolled into the study from December 2005 to September 2006. We followed up these patients until 28th December, 2008. Median follow up time was 30 months. The compliance rate was 100%. The response rate was 32.1% in the smoking group and 35% in the never smoking group (P=0.836); The median progression-free survival was 3 months and 9 months, respectively (P=0.033). The median overall survival was 5 months and 17 months, respectively (P=0.162). Conclusion Erlotinib is an effective drug for advanced non-small cell lung cancer patients with different smoking status. Progressionfree survival is better in the never smoking patients than the smoking patients
Nonlinear Analysis: Algorithm, Convergence, and Applications 2014
Department of Applied Mathematic
Suppression of FM-to-AM conversion in third-harmonic generation at the retracing point of a crystal
FM-to-AM conversion can cause many negative effects (e.g., reducing of margin
against damage to the optics, and etc.) on performances of third-harmonic
conversion system. In this letter, the FM-to-AM conversion effect in
third-harmonic generation is investigated both at and away from the retracing
point of type-II KDP crystal. Obtained results indicate that the FM-to-AM
conversion can be suppressed effectively when the crystal works at the
retracing point.Comment: 8 pages, 5 figures, 1 tabl
Clinical Study Intravitreal Ranibizumab Injection as an Adjuvant in the Treatment of Neovascular Glaucoma Accompanied by Vitreous Hemorrhage after Diabetic Vitrectomy
. Purpose. To determine the efficacy of intravitreal ranibizumab injection as adjuvant therapy in the treatment of neovascular glaucoma (NVG) accompanied by postvitrectomy diabetic vitreous hemorrhage (PDVH). Methods. Eighteen NVG patients (18 eyes) accompanied by PDVH were enrolled in this prospective, monocenter, 12-month, interventional case series. The consecutive 18 patients with an IOP ≥ 25 mmHg despite being treated with the maximum medical therapy were treated with intravitreal ranibizumab injections. Vitreous surgery or/with Ahmed valve implantation were indicated if no clinical improvement in vitreous haemorrhage and uncontrolled IOP was shown. Results. Ten patients got clear vitreous and controlled IOP only with 2.7 ± 1.8 injections of ranibizumab without additional surgery. Vitrectomy or/with Ahmed valve implantation was administered in the other 8 eyes due to uncontrolled VH and IOP. At follow-up month 12, all the 18 eyes gained clear vitreous. At month 12 BCVA improved significantly compared to baseline. The baseline and follow-up at month 12 IOP/medication usage were 36.7 ± 8.1 mmHg on 3.4 ± 0.7 medications and 16.2 ± 4.9 mmHg on 0.67 ± 0.77 medications, respectively. Conclusions. The findings suggest that intravitreal ranibizumab injection as adjuvant therapy for treatment of NVG accompanied by PDVH may be safe and potentially effective. This clinical trial is registered with NCT02647515
The Psychological Capital of Left-Behind University Students: A Description and Intervention Study From China
The migrant worker phenomenon in China has negatively impacted the psychological development of these workers' children, whom researchers have termed “left-behind children” (LC) or university students with left-behind experience (USWL). Since USWL are the best among the LC in some sense, we decided to perform two investigations to determine if they might possess unique positive psychological capital factors. Study 1 aimed to explore the development of the psychological capital of USWL, and Study 2 utilized a group intervention design to improve USWL psychological capital. A questionnaire was administered to 281 USWL and 284 control university students in study 1. The results showed that the psychological capital of USWL was moderate, and their self-efficacy, optimism, hope, and overall psychological capital were significantly lower than those with no left-behind experience. However, their psychological resilience was remarkably higher than those who were not left behind. It also suggested that some demographic factors such as gender, grade, only child status, student leadership experience, reunion frequency with parents, and relationship with guardians significantly influence the psychological capital of USWL. In Study 2, a single-factor interventional experimental design based on the psychological capital intervention theory (PCI) was conducted in 73 USWL (38 in the experimental group, 35 in the control group). There were significant post-test differences between groups. Both the pre- and post-test results differed greatly in the experimental and control groups. Overall, our findings indicate that although the left-behind experience in childhood moderately impairs psychological capital development, it also fosters resilience. The psychological intervention based on PCI is an effective “remedy scheme” to improve their psychological capital qualities
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