A purine fluorescent derived probe assay for glyphosate and mesotrione via Schiff base cleavage.

A fluorescent probe derived from purine with Schiff base moiety was developed for the recognization of glyphosate and mesotrione. The detected glyphosate and mesotrione can lead to the dissociation of the Schiff base probe to enhance the fluorescence via a turn-off PET process. Mechanism study revealed that the synergistic effect of the phosphoric acid and the secondary amine moieties in glyphosate results in the bond cleavage of the Schiff base probe.

Sensitive fluorescence detection of glyphosate and glufosinate ammonium pesticides by purine-hydrazone-Cu complex.

Organophosphorus pesticides play an important role as broad-spectrum inactivating herbicides in agriculture. Developing a method for rapid and efficient organophosphorus pesticides detection is still urgent due to the increasing concern on food safety. An organo-probe (ZDA), synthesized by purine hydrazone derivative and 2,2'-dipyridylamine derivative, was applied in sensitive recognition of Cu with detection limit of 300 nM.

Factors Influencing the Fasting Time in Adult Patients After the Endoscopic Management of Sharp Esophageal Foreign Bodies.

Background: Sharp esophageal foreign body (SEFB) impaction can cause varying degrees of damage to the esophagus. There are few studies analyzing the postoperative fasting time in SEFB patients.

Methods: We retrospectively collected 835 SEFB patients.

Data-Driven Platform Framework for Digital Whole-Process Expressway Construction Management.

To increase the speed and efficiency of expressways construction, information management is being gradually introduced into the construction process. However, progress is limited due to the complexity of expressway engineering and application limitations of information technology. Design and delivery are still dominated by paper files, and the management of test and inspection data is still relatively extensive.

Combined effect of heart rate responses and the anti-G straining manoeuvre effectiveness on G tolerance in a human centrifuge.

Increased heart rate (HR) is a reaction to head-to-toe gravito-inertial (G) force. The anti-G straining manoeuvre (AGSM) is the crucial technique for withstanding a high-G load. Previous studies reported the main effects of HR only or AGSM only on G tolerance.

Roles of Physiological Responses and Anthropometric Factors on the Gravitational Force Tolerance for Occupational Hypergravity Exposure.

Gravity in the head-to-toe direction, known as +Gz (G force), forces blood to pool in the lower body. Fighter pilots experience decreases in blood pressure when exposed to hypergravity in flight. Human centrifuge has been used to examine the G tolerance and anti-G straining maneuver (AGSM) techniques of military pilots.

Effects of epidermal growth factor on transforming growth factor-beta1-induced epithelial-mesenchymal transition and potential mechanism in human corneal epithelial cells.

Aim: To evaluate the effects of epidermal growth factor (EGF) on transforming growth factor-beta1 (TGF-β1)-induced epithelial-mesenchymal transition (EMT) in human corneal epithelial cells (HCECs).

Methods: HCECs were cultured and treated with TGF-β1 for establishing the model of EMT . Biological effect of EGF on TGF-β1-induced EMT was evaluated.

Improved survival of hospitalized patients with cardiac arrest due to coronary heart disease after implementation of post-cardiac arrest care: A population-based study.

Post-cardiac arrest care was implemented in 2010 and has been shown to improve the survival of patients with coronary heart disease (CHD). However, the findings varied for different survival conditions.We conducted a retrospective longitudinal study of records from 2007 to 2013 in the National Health Insurance Research Database.

Magnetic anisotropy and relaxation behavior of six-coordinate tris(pivalato)-Co(ii) and -Ni(ii) complexes.

Experimental and theoretical studies of magnetic anisotropy and relaxation behavior of six-coordinate tris(pivalato)-Co(ii) and -Ni(ii) complexes (NBu4)[M(piv)3] (piv = pivalate, M = Co, 1; M = Ni, 2), with a coordination configuration at the intermediate between an octahedron and a trigonal prism, are reported. Direct current magnetic data and high-frequency and -field EPR spectra (HFEPR) of 1 have been modeled by a general Hamiltonian considering the first-order orbital angular momentum, while the spin Hamiltonian was used to interpret the data of 2. Both 1 and 2 show easy-axis magnetic anisotropies, which are further supported by ab initio calculations.

Slow magnetic relaxation in mononuclear seven-coordinate cobalt(II) complexes with easy plane anisotropy.

Two mononuclear seven-coordinate cobalt(II) complexes [Co(L)3(NO3)2] (L = 4-tert-butylpyridine, 1; L = isoquinoline, 2) were prepared and structurally analyzed by single-crystal X-ray crystallography. The coordination spheres of 1 and 2 exhibit distorted pentagonal bipyramid geometry. Analysis of their direct-current magnetic data reveals the existence of easy plane anisotropy (D > 0) with a small transverse anisotropy (E), which was further confirmed by high-field electron paramagnetic resonance (HFEPR) spectroscopy.

[Analyses on the characteristics and the trends of pneumoconiosis notified between 1997 and 2009, in China].

Objective: To describe the incidence of pneumoconiosis reported in China from 1997 to 2009 and investigate the epidemiological trends and characteristics of pneumoconiosis, and to provide basic data for formulating the guidelines and policies for control of pneumoconiosis, research on pneumoconiosis, and establishing the time series model for monitoring and early warning of pneumoconiosis.

Methods: The national database of new cases of pneumoconiosis reported from 1997 to 2009 was subjected to systematic arrangement, descriptive analysis, and trend test using SPSS 15.0.

[Characterization of severe acute occupational poisoning accidents related to metal and metalloid in China between 1989 and 2003].

Objective: To study the characteristics of severe acute occupational poisoning accidents related to metal and metalloid and provide scientific evidences for prevention and control strategies.

Methods: The data from the national occupational poisoning case reporting system were analyzed with descriptive methods.

Results: (1) There were 39 severe acute occupational poisoning accidents related to metal and metalloid for 15 years, which showed that there were 2.

[Characterization of severe acute occupational poisoning accidents related to organic solvents in China between 1989 and 2003].

Objective: To analyze severe acute occupational poisoning accidents related to organic solvents reported in China between 1989 and 2003, and to study the characteristics of severe acute occupational poisoning accidents and provide scientific evidences for prevention and control strategies.

Methods: The data from the national occupational poisoning case reporting system were analyzed with descriptive methods.

Results: (1) There were 58 severe acute occupational poisoning accidents related to organic solvents for 15 years with 393 workers poisoned and 48 workers died.

[Characterization of severe acute occupational poisoning accidents related to irritating gases in China between 1989 and 2003].

Objective: To analyze severe acute occupational poisoning accidents related to irritating gases reported in China between 1989 and 2003, and to study the characteristics of severe acute occupational poisoning accidents and provide scientific evidences for prevention and control strategies.

Methods: The data from the national occupational poisoning case reporting system were analyzed with descriptive methods.

Results: (1) There were 92 severe acute occupational poisoning accidents related to asphyxiating gases during 15 years, which showed that there were 14.

[Characterization of severe acute occupational poisoning accidents related to asphyxiating gases in China between 1989 and 2003].

Objective: To analyze severe acute occupational poisoning accidents related to asphyxiating gases reported in China between 1989 and 2003, and to study the characteristics of severe acute occupational poisoning accidents and provide scientific evidences for prevention and control strategies.

Methods: The data from the national occupational poisoning case reporting system were analyzed with descriptive methods.

Results: (1) There were 273 severe acute occupational poisoning accidents related to asphyxiating gases for 15 years with 1638 workers poisoned and 600 workers died, which accounted for 53.

[Characterization of severe acute occupational poisoning accidents in China between 1989 and 2003].

Objective: To analyze severe acute occupational poisoning accidents reported in China between 1989 and 2003, and to study the characteristics of severe acute occupational poisoning accidents and provide scientific evidences for prevention and control strategies.

Methods: The data from the national occupational poisoning case reporting system were analyzed with descriptive methods.

Results: (1) There were 506 acute severe occupational poisoning accidents for 15 years with 4 657 workers poisoned.

[The reporting system of acute pesticides poisoning and general situation of pesticides poisoning in China].

Objective: To introduce the reporting system of acute pesticides poisoning and analyze epidemiologic characteristics of pesticides poisoning from reported cases in China.

Methods: Case reports in the data base of reporting system for occupational diseases were computed by Excel for windows and statistical significance by SAS 6.12.

[Study of drug poisoning on 2612 cases in the department of emergency].

Objective: To analyze the characteristics of the drug poisoning.

Methods: In the 25 department of emergency selected hospitals, design questionnaires to register the drug poisoning patients who seeking emergency treatment within one-year period.

Results: Collected 2 612 cases of drug poisoning patients, accounted as 0.

[Comparison of data population-based and from hospital-based injuries].

Objective: To compare data from an epidemiological survey on injuries with a survey conducted in hospitals on injuries in the same areas and to find out the differences and shortcomings of hospital data in describing the feature of injuries in an area.

Methods: Comparing the causes and age distributions of injuries from the two surveys.

Results: The first 4 leading causes of injuries from the population-based survey were mechanical injuries, falls, burns/scalds and traffic accidents while the first 4 leading causes of hospital-based survey were traffic accidents, assault, mechanical injuries and burns/scalds.

[A survey of emergency treatment of pesticides poisoning in comprehensive hospitals].

Objective: To seek the characteristics of pesticide poisoning in emergency departments.

Methods: Twenty-five hospitals were selected. Among them, they were 14 province or city level and 11 county level.

[The comparison on cause and treatment of injuries between two types of Emergency Department among 25 hospitals].

Objective: To analyze the characteristics of injuries between two types of Emergency Department (ED) in China.

Methods: We selected 25 hospital EDs in the whole country as spots for investigation, and designed one special questionnaire to collect information, from 1st July, 2001 to 30th June, 2002.

Results: In city hospitals (CIH), the proportion of injury to all diseases were 19.