This work presents the first demonstration of a mechanochromic organic micro-laser, which exhibits remarkable wide range pressure sensing characteristics. The gain material, pinacolato boronate ester functionalized anthanthrene (AnBPin), is designed by incorporating mechanofluorochromic (MFC) properties into organic laser dye. The AnBPin exhibits a reversible transition between green and orange fluorescence upon grinding annealing and recrystallization cycle, and its micro-crystal exhibits typical organic micro-laser behaviors.
View Article and Find Full Text PDFMost bacteria use type II fatty acid synthesis (FAS) systems for synthesizing fatty acids, of which the conserved FabA-FabB pathway is considered to be crucial for unsaturated fatty acid (UFA) synthesis in gram-negative bacteria. pv. , the phytopathogen of black rot disease in crucifers, produces higher quantities of UFAs under low-temperature conditions for increasing membrane fluidity.
View Article and Find Full Text PDFEmissions of greenhouse gases in the Three Gorges Reservoir have been attracting attention in the recent years. This study was conducted to reveal the CH emission and removal during the process of algal growth at different nitrogen and phosphorus concentrations in the Pengxi River in the Three Gorges Reservoir. In-situ field experiments were conducted in the Gaoyang Lake in Pengxi River.
View Article and Find Full Text PDFBiomed Environ Sci
November 2016
Objective: This study aimed to determine the impact of maternal cervical incompetence (with or without McDonald cerclage) on mortality and morbidity of preterm infant with birth weight <2000g.
Methods: 581 neonates were eligible for this study, 79 with cervical incompetence and 502 without it (control). Incidences of neonatal respiratory distress syndrome (RDS), bronchopulmonary dysplasia (BPD), intraventricular hemorrhage (IVH), neonatal necrotizing enterocolitis (NEC), retinopathy of prematurity (ROP), periventricular leukomalacia (PVL), severe asphyxia, small for gestational age (SGA), early-onset sepsis (EOS), and mortality were compared between the two groups.
Aim: To evaluate the effectiveness and safety of complex orbital fracture reconstruction with titanium implants.
Methods: A retrospective review of 46 patients treated with complex orbital fractures reconstruction using titanium implants from January 2005 to December 2008 was conducted. The following data were recorded: age, gender, mechanism of injury, preoperative and postoperative orbital CT, visual acuity, diplopia, ocular motility and Hertel exophthalmometer.
Zhongguo Dang Dai Er Ke Za Zhi
March 2009
Objective: Abnormal glucose metabolism during pregnancy can result in significant adverse outcomes for newborns. This study was designed to investigate the effect of different degrees of impaired glucose tolerance on newborns.
Methods: Glucose challenge test (GCT) and oral glucose tolerance test (OGTT) were performed in pregnant women at 24-28 weeks of gestation.
Zhonghua Yan Ke Za Zhi
August 2008
Objective: To investigate the procedure of transcranial operation via pterional approach for cranio-orbital communicating tumors, to improve surgery skills, to summarize the incidence of main complications and to discuss tips for avoiding damage of the normal orbital tissues.
Methods: Pterional approach was adopted for the operation. After the medial orbital wall or lateral orbital wall was bitten with rongeur and the orbital roof was removed, the extraocular muscles at orbital apex were separated and protected.
Objective: To summarize the experience in microsurgical removal of craniopharyngioma using combined transorbital-subfrontal and temporal craniotomy.
Methods: Eighteen patients with craniopharyngioma varied from 3.1 cm to 6.
Background And Objective: Acoustic neurinomas is one of the most common benign tumor in central nervous system, the main treatment is surgical resection. This study is to explore keyhole surgery with suboccipital retrosigmoid sinus approach for acoustic tumor resection and discuss how to improve the surgical skill and effect.
Methods: Thirteen cases of acoustic neurinomas from Sept.