[Determination of 79 pesticide residues in fruits and vegetables by QuEChERS-ultra performance liquid chromatography-tandem mass spectrometry].

Pesticide residues in fruits and vegetables are becoming a serious issue. These residues can affect the quality of agricultural products and people's health. Therefore， it has become crucial to effectively monitor and control pesticide residues in the food safety field.

The DRN-VLO pathway via distinct 5-HT synaptic mechanisms modulates neuropathic pain-induced depressive-like behaviors in mice.

Background: The neuronal activities within the dorsal raphe nucleus (DRN) and the ventrolateral orbital cortex (VLO) are strongly implicated in the development of depression, a condition comorbid with chronic pain. The goal of the present study was to determine whether and how the DRN-VLO pathway mediates chronic pain-induced depression.

Methods: Trigeminal neuralgia was induced unilaterally by chronic constriction injury of the infraorbital nerve.

Further clarification of cognitive processes of prospective memory in schizophrenia by comparing eye-tracking and ecologically-valid measurements.

The aim of this study is to compare ecologically-valid measure (the Cambridge Prospective Memory Test, CAMPROMPT) and laboratory measure (eye-tracking paradigm) in assessing prospective memory (PM) in individuals with schizophrenia spectrum disorders (SSDs). In addition, eye-tracking indices are used to examine the relationship between PM and other cognitive domains in SSDs patients. Initially, the study sample was formed by 32 SSDs patients and 32 healthy control subjects (HCs) who were matched in sociodemographic profile and the performance on CAMPROMPT.

[Determination of kojic acid in fermented foods by solid-phase extraction coupled with ultra performance liquid chromatography-tandem mass spectrometry].

Kojic acid naturally appears in fermented foods and can be formed during the aerobic fermentation process induced by and . It is widely used in the food industry because it exhibits antibacterial and antifungal properties and does not affect food taste. However, recent studies indicate that kojic acid may be a potential carcinogen.

[Research progress on the mechanism of pain related neural pathways above the spinal cord].

Pain is a multi-dimensional emotional experience, and pain sensation and pain emotion are the two main components. As for pain, previous studies only focused on a certain link of the pain transmission pathway or a certain key brain region, and there is a lack of evidence that connectivity of brain regions is involved in pain or pain regulation in the overall state. The establishment of new experimental tools and techniques has brought light to the study of neural pathways of pain sensation and pain emotion.

[Rapid determination of five halobenzoquinones in aquatic products by QuEChERS-ultra performance liquid chromatography-tandem mass spectrometry].

Halobenzoquinones (HBQs), which are emerging chlorinated disinfection byproducts (DBPs), have attracted increasing attention because they are frequently detected in treated tap water, entrainment water, etc. These compounds are mainly generated during the water treatment process using chlorine, chloramine, and chlorine dioxide as disinfectants, and display more toxic effects than regulated DBPs, such as trihalomethane and haloacetic acid. HBQs have been recognized as potential bladder carcinogens and are harmful to the nervous system.

The deficient cue monitoring and the facilitating effect of prosocial intention on prospective memory in patients with schizophrenia spectrum disorders.

The study aimed to investigate the cognitive processing of prospective memory (PM) in patients with schizophrenia spectrum disorders (SSDs) by using an eye-tracking paradigm. In addition, the facilitating effects of prosocial intention (the desire to help others) on PM in SSDs were also examined. In phase 1, 26 patients (group1) and 25 healthy controls (HCs) were compared in an eye-tracking PM paradigm in terms of the PM accuracy and eye-tracking indices.

EMDR versus waiting list in individuals at clinical high risk for psychosis with post-traumatic stress symptoms: A randomized controlled trial.

Background: Post-traumatic stress disorder (PTSD) is highly prevalent in the individuals at clinical-high risk for psychosis (CHR). The aim of this study was to examine the efficacy and safety of Eye Movement Desensitization and Reprocessing (EMDR) in individuals at CHR with comorbid PTSD or subthreshold PTSD in a randomized controlled trial.

Methods: Fifty-seven individuals at CHR with PTSD or subthreshold PTSD formed the study sample.

The Unique Contribution of Past Bullying Experiences to the Presence of Psychosis-Like Experiences in University Students.

Objectives: Both bullying and psychosis-like experiences (PLEs) have gained much attention in recent years, but their interactions are not fully unraveled. The aim of the current study was to validate the Chinese version of Bullying Scale for Adults (C-BSA), and to investigate whether past bullying experiences independently predict the presence of PLEs in university students.

Methods: The validity and reliability of the C-BSA were determined in two independent samples.

Performance of age-adjusted D-dimer values for predicting DVT before the knee and hip arthroplasty.

Purpose: To compare the specificity and sensitivity of preoperative D-dimer and age-adjusted D-dimer value for predicting the incidence of the DVT preoperatively in total joint arthroplasty (TJA) patients.

Methods: We enrolled 406 patients finally above 50 years old. Everyone had done ultrasonography bedside, and D-dimer concentrations were collected before surgery.

Anion-π interactions in lithium-organic redox flow batteries.

The anions in electrolytes are the carriers of lithium ions for lithium-organic redox flow batteries. Herein, we reported that the interactions between the electrolyte anions and electron-deficient redox-active organic molecules (anion-π interactions) have strong influences on the battery properties due to the anion-π-induced formation of radical anions or sandwich-like aggregates.

Stable Bifunctional Perylene Imide Radicals for High-Performance Organic-Lithium Redox-Flow Batteries.

The search for high-performance organic redox-active materials for non-aqueous redox-flow batteries remains a key challenge. Organic radicals and aromatic imides are two promising classes of redox-active materials with complementary advantages, such as the specific capacity, operating voltage, and stability, etc. Herein, this work reports two stable bifunctional radicals synthesized by the C-C coupling of redox-active phenoxyl radicals and perylene diimides (PDIs, 1 ) or benzo[ghi]perylene triimides (BPTIs, 2 ).

Research on the Determination of 10 Industrial Dyes in Foodstuffs.

An efficient method was developed for the simultaneous determination of 10 industrial dyes (basic orange 2, basic orange 21, basic orange 22, acid orange II, auramine, basic rhodamine B and Sudan I-IV) in the foodstuffs using high-performance liquid chromatography coupled with diode array detector. Samples were extracted with acetonitrile and cleaned up on a solid phase extraction cartridge using HLB. The chromatographic separation was achieved on a C18 column using a mobile phase consisting of methanol and 10 mmol/L ammonium acetate with 0.

Molecular Engineering of Perylene Imides for High-Performance Lithium Batteries: Diels-Alder Extension and Chiral Dimerization.

The search for high-performance electrode materials in organic rechargeable batteries remains a key challenge. Reported herein is a molecular structural modification of perylene imides, a promising class of redox-active electrode materials, for improved battery performance. The Diels-Alder extension of perylene imides at the lateral position led to the simultaneous incorporation of two electron-withdrawing carbonyl groups and extension of the π system, which is supposed to favor high specific capacity, operating voltage, and electronic conductivity.

High Performance All Fluorescence White Organic Light Emitting Devices with a Highly Simplified Structure Based on Thermally Activated Delayed Fluorescence Dopants and Host.

Thermally activated delayed fluorescence (TADF) emitters of different colors commonly need different hosts, which cause the complexed device structure and low efficiency of all fluorescence white organic light-emitting devices (F-WOLEDs). To solve this, novel concept of employing TADF exciplex as universal host of TADF emitters with different colors was proposed. All blue, green, and orange devices based on the TADF exciplex host show much lower turn-on voltages, and comparable and even higher efficiencies than corresponding devices based on conventional hosts.

Promoter structures and differential responses to viral and non-viral inducers of chicken melanoma differentiation-associated gene 5.

Melanoma differentiation-associated gene 5 (MDA5) is a member of the retinoic acid-inducible gene I (RIG-I)-like receptors (RLRs) family and plays a pivotal role in the anti-viral innate immune response. As RIG-I is absent in chickens, MDA5 is hypothesized to be important in detecting viral nucleic acids in the cytoplasm. However, the molecular mechanism of the regulation of chicken MDA5 (chMDA5) expression has yet to be fully elucidated.

Isomeric Thermally Activated Delayed Fluorescence Emitters for Color Purity-Improved Emission in Organic Light-Emitting Devices.

To improve the color purity of thermally activated delayed fluorescence (TADF) emitters, two isomeric compounds, oPTC (5'-(phenoxazin-10-yl)-[1,1':3',1″-terphenyl]-2'-carbonitrile) and mPTC (2'-(phenoxazin-10-yl)-[1,1':3',1″-terphenyl]-5'-carbonitrile), were designed and synthesized with same skeleton but different molecular restrictions. Both compounds exhibit similar highest occupied molecular orbital and lowest unoccupied molecular orbital distributions and energy levels, photophysical properties in nonpolar cyclohexane solution, and high external quantum efficiencies (19.9% for oPTC and 17.

Novel Carbazol-Pyridine-Carbonitrile Derivative as Excellent Blue Thermally Activated Delayed Fluorescence Emitter for Highly Efficient Organic Light-Emitting Devices.

A novel blue thermally activated delayed fluorescence (TADF) emitter, CPC (2,6-di(9H-carbazol-9-yl)-4-phenylpyridine-3,5-dicarbonitrile), was designed and synthesized. By directly linking carbazole (to serve as electron-donor) and pyridine-3,5-dicarbonitrile (to serve as electron-acceptor), and distributing cyanogroups and carbazole groups at the para-position of pyridine core, CPC successfully achieves an extremely small singlet-triplet splitting and fairish photoluminescence quantum yield, thus can act as the highly efficient blue TADF emitter. The optimized organic light-emitting diode (OLED) based on 13 wt % CPC doped in mCP (1,3-bis(9H-carbazol-9-yl)benzene) host exhibits maximum current efficiency, power efficiency, and external quantum efficiency of 47.

Distal femoral fractures in post-poliomyelitis patients treated with locking compression plates.

Objective: Treatment of distal femoral fracture in post-polio patients is difficult because the bone is usually osteopenic, small and deformed. This retrospective study aimed to investigate the outcomes of distal femoral fracture in post-polio patients treated by locking compression plates (LCP).

Methods: The medical records of 19 post-polio patients (mean age 49 years at time of surgery) were reviewed and intraoperative data retrieved.

[Revision total hip arthroplasty using a cementless prosthesis].

Objective: To assess the operative technique and results with the usage of cementless prosthesis in hip revision.

Methods: Retrospective study was done on revision of total hip arthroplasty with cementless prosthesis in 72 patients (41 males and 31 females) with an average age of 65.7 years (28-82 years) from January 2004 to December 2009.

Association of estrogen receptor alpha gene polymorphisms with bone mineral density: a meta-analysis.

Background: A number of studies have examined the association between estrogen receptor alpha (ESR-α) gene polymorphisms and bone mineral density (BMD), but previous studies of ESR-α gene XbaI (rs9340799) and PvuII (rs2234693) polymorphisms have been hampered by small sample size, regional restrictions and inconclusive results. Thus a meta-analysis is needed to assess their pooled effects.

Methods: This study reviewed all published articles indexed in Pubmed using the keywords in the title or abstract.

Application of an articulating spacer in two-stage revision for severe infection after total knee arthroplasty.

Objective: To investigate the efficiency and safety of articulating spacer for severe infection after total knee arthroplasty (TKA) in patients with medical comorbidities and local sinus tracts.

Methods: Between January 2002 and March 2008, ten consecutive patients with late stage infected TKA complicated by local sinus tracts and medical comorbidities, were treated in our hospital by delayed two-stage reimplantation using articulating spacers. The modified Hospital for Special Surgery (HSS) knee scoring system was used to evaluate the results.

Association between deep vein thrombosis and the temperature at the popliteal fossa during cement curing in total knee arthroplasty.

The temperature at the popliteal fossa during cement curing and its relationship with deep vein thrombosis (DVT) in total knee arthroplasty (TKA) has not been investigated. Fifty-six consecutive patients who underwent primary TKA were recruited. The temperatures at the popliteal fossa were measured during bone cement exothermic polymerization.