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Mechanism of the Ir/Pd catalyzed photocarboxylation of aryl halides

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Chinese Chemical Letters 2021年第4期32卷 1403-1406页

作者： ying lv Bing Wang Haizhu Yu Department of Chemistry and Centre for Atomic Engineering of Advanced Materials Anhui University.Hefei 230601China Department of Chemistry University of Science and Technology of ChinaHefei 230026China

The recent Ir/Pd co-catalyzed photo carboxylation of aromatic halides with CO_(2) has shown high efficiency and excellent functional group tolerance for preparing aromatic carboxylic acids and *** the aid of density functional theory(DFT)calculations,the carboxylation starts with two parallel steps,i.e.,oxidative addition of aromatic halides on Pd~0 and reductive quenching of the photocatalyst Ir(ppy)_(2)(dtbpy)~+with ***,a successive oxidation of Pd~Ⅱwith the amine radical(generated by the reaction of cationic radical amine and Cs_(2) CO_(3)and Ir~Ⅱspecies occurs to generate Pd~0,from which the carboxylation occurs easily via a coordination,Pd-C insertion *** release of the carboxylate product then regenerates the catalyst.

关键词： Carboxylation Pd-catalysis DFT Charge state Mechanism

Effect of non-pharmacological treatment on the full recovery of social functioning in patients with attention deficit hyperactivity disorder

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World Journal of Clinical Cases 2023年第14期11卷 3238-3247页

作者： ying-Bo lv Wei Cheng meng-Hui Wang Xiao-Min Wang Yan-Li Hu Lan-Qiu lv Pediatric Health Care Section Ningbo Women and Children’s HospitalNingbo 315000Zhejiang ProvinceChina

BACKGROUND Long-term treatment of attention deficit/hyperactivity disorder(ADHD)is associated with adverse events,such as nausea and vomiting,dizziness,and sleep disturbances,and poor maintenance of late ADHD medication compromises treatment outcomes and prolongs the recovery of patients’social *** To evaluate the effect of non-pharmacological treatment on the full recovery of social functioning in patients with *** A total of 90 patients diagnosed with ADHD between May 2019 and August 2020 were included in the study and randomly assigned to either the pharmacological group(methylphenidate hydrochloride and tomoxetine hydrochloride)or the non-pharmacological group(parental training,behavior modification,sensory integration therapy,and sand tray therapy),with 45 cases in each *** measures included treatment compliance,Swanson,Nolan,and Pelham,Version IV(SNAP-IV)scores,Conners Parent Symptom Questionnaire(PSQ)scores,and Weiss Functional Impairment Rating Scale(WFIRS)*** The non-pharmacological interventions resulted in significantly higher compliance in patients(95.56%)compared with medication(71.11%)(P0.05).Patients with non-pharmacological interventions showed higher WFIRS scores for family,daily life skills,and self-concept than those in the pharmacological group(P<0.05).CONCLUSION Non-pharmacological interventions,in contrast to the potential risks of adverse events after longterm medication,improve patient treatment compliance,alleviate patients’behavioral symptoms of attention,impulsivity,and hyperactivity,and improve their cognitive ability,thereby improving family relationships and patient self-evaluation.

关键词： Non-pharmacological treatment Attention deficit hyperactivity disorder Social functioning Recovery Weiss Functional Impairment Rating Scale scores

Multimodal integrated intervention for children with attentiondeficit/hyperactivity disorder

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World Journal of Clinical Cases 2023年第18期11卷 4267-4276页

作者： ying-Bo lv Wei Cheng meng-Hui Wang Xiao-Min Wang Yan-Li Hu Lan-Qiu lv Pediatric Health Care Section Ningbo Women and Children's HospitalNingbo 315000Zhejiang ProvinceChina

BACKGROUND Attention-deficit/hyperactivity disorder(ADHD)is one of the most common disorders in child and adolescent psychiatry,with a prevalence of more than 5%.Despite extensive research on ADHD in the last 10 to 20 years,effective treatments are still ***,the concept of ADHD seems to have become broader and more ***,the diagnosis and treatment of ADHD remains challenging for *** To investigate the effects of a multimodal integrated intervention for children with *** Between March 2019 and September 2020,a total of 100 children with ADHD who were diagnosed and treated at our hospital were assessed for eligibility,two of whom revoked their consent.A case-control study was conducted in which the children were equally assigned,using a randomized number table,to either a medication group(methylphenidate hydrochloride extended-release tablets and atomoxetine hydrochloride tablets)or a multimodal integrated intervention group(medication+parent training+behavior modification+sensory integration therapy+sand tray therapy),with 49 patients in each *** clinical endpoint was the efficacy of the different intervention *** The two groups of children with ADHD had comparable patient characteristics(P>0.05).Multimodal integrated intervention resulted in a significantly higher treatment efficacy(91.84%)than medication alone(75.51%)(P<0.05).Children who received the multimodal integrated intervention showed lower scores in the Conners Parent Symptom Questionnaire and the Weiss Functional Impairment Rating Scale than those treated with medication alone(P<0.05).The Sensory Integration Scale scores of children in the multimodal integrated intervention group were higher than those of children in the medication group(P<0.05).Children who received the multimodal integrated intervention had higher compliance and family satisfaction and a lower incidence of adverse events than those treated with medication alone(P<0.

关键词： Attention-deficit/hyperactivity disorder Multimodal integrated intervention Medication Behavior modification Sensory integration therapy Sand tray therapy

Progress in clinical trials of stem cell therapy for cerebral palsy

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Neural Regeneration Research 2021年第7期16卷 1377-1382页

作者： Zhong-Yue lv ying Li Jing Liu Stem Cell Clinical Research Center National Joint Engineering LaboratoryRegenerative Medicine CenterThe First Affiliated Hospital of Dalian Medical UniversityDalianLiaoning ProvinceChina Dalian Innovation Institute of Stem Cell and Precision Medicine DalianLiaoning ProvinceChina

Cerebral palsy is the most common disease in children associated with lifelong disability in many *** research has demonstrated that traditional physiotherapy and rehabilitation therapies cannot alone cure cerebral *** cell transplantation is an emerging therapy that has been applied in clinical trials for a variety of neurological diseases because of the regenerative and unlimited proliferative capacity of stem *** this review, we summarize the design schemes and results of these clinical *** findings reveal great differences in population characteristics, stem cell types and doses, administration methods, and evaluation methods among the included clinical ***, we also assess the safety and efficacy of these clinical *** anticipate that our findings will advance the rational development of clinical trials of stem cell therapy for cerebral palsy and contribute to the clinical application of stem cells.

关键词： adverse events brain cell transplantation central nervous system cerebral palsy clinical trials plasticity regeneration stem cell

Dynamic changes of microbial community diversity in a photohydrogen producing reactor monitored by PCR-DGGE

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Journal of Environmental Sciences 2008年第9期20卷 1118-1125页

作者： ying Yanling lv Zhenmei MIN Hang CHENG Jun Institution of Microbiology College of Life Sciences Zhejiang University Hangzhou 310058 China State Key Lab of Clean Energy Utilization Zhejiang University Hangzhou 310027 China

A PCR-DGGE (denaturing gradient gel electrophoresis of polymerase chain reaction) protocol was used for monitoring the dynamic changes in the microbial population during photohydrogen production. Total DNA was extracted directly from the mixed bacterial community in the reactor and subjected to PCR with V3-16S rDNA and pufM gene primers, and the amplifications were then analyzed by DGGE. The DGGE patterns demonstrated the dynamics of community structure and the shift of microbial diversity, which correspond...

关键词： PCR-DGGE V3-16S rDNA region pufM gene photohydrogen producing reactor

High adsorption of Cd(Ⅱ)by modification of synthetic zeolites Y,A and mordenite with thiourea

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Chinese Journal of Chemical Engineering 2020年第12期28卷 3117-3125页

作者： Shaoqing Zhang Tianming lv Yang Mu Jiqi Zheng Changgong meng Anhui Science and Technology University Bengbu 239000China School of chemical engineering Dalian University of TechnologyDalian 116024China Department of materials science and engineering University of WashingtonSeattleWA 98125USA

Zeolites Y,A and mordenite(ZY,ZA and ZM)were obtained from diatomite in a template-free system,and the products were modified by thiourea(TU).Characterization studies results indicated that the TU molecules were loaded onto the exterior surfaces of the synthetic zeolites as well as the *** analysis and energy-dispersive X-ray spectrometer proved that the TU molecules loaded on to ZA were more than ZY and *** of Cd(Ⅱ)was investigated,and itwas found that themodified zeolites have higher removal capacity,modified ZA is especially *** the adsorption experiments,the effects of various parameters such as sorbent content,contact time,concentration of cadmium solution,pH,selectivity and regeneration were *** the best removal efficiency by modified zeolites,the maximum adsorption capacity is 94.3 mg·g^−1,103.2 mg·g^−1 and 89.7 mg·g^−1 at 25℃,*** sorbents show good efficiency for the removal of Cd(Ⅱ)in the presence of different multivalent cations and have good regeneration *** the modified samples,removal experiments take place via ion exchange and complexation processes.

关键词： Diatomite Zeolite Thiourea Adsorption Cd(Ⅱ)removal

DYNAMICAL PROPERTIES OF A STOCHASTIC TWO-SPECIES SCHOENER＇S COMPETITIVE MODEL

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International Journal of Biomathematics 2012年第5期5卷 37-56页

作者： JINGLIANG lv KE WANG meng LIU Department of MathematicsHarbin Institute of Technology (Weihai) Weihai 264209 P. R. China School of Mathematics and Statistics Northeast Normal University Changchun 130024 P. R. China

A stochastic two-species Schoener＇s competitive model is proposed and investigated. Sufficient conditions for the existence of global positive solutions, boundedness~ uniform continuity, global attractivity stochastic permanence and extinction are obtained. More- over, the upper-growth rate and the average in time of the sample paths of solutions are also estimated. Finally, some figures are introduced to illustrate the main results.

关键词： Schoener's competitive model stochastically ultimate boundedness globallyattractivity stochastic permanence extinction.

Simulation of Vertical Solar Power Plants with Different Turbine Blades

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Fluid Dynamics & Materials Processing 2023年第6期19卷 1397-1409页

作者： Yuxing Yang Peng Zhang meng lv Xi’an Branch of North China Electric Power Research Institute Co. Ltd.Xi’an710000China

The performances of turbine blades have a significant impact on the energy conversion efficiency of vertical solar power *** the present study,such a relationship is assessed by considering two kinds of airfoil blades,designed by using the Wilson *** particular,numerical simulations are conducted using the SST K−ω model and assuming a wind speed of 3–6 m/s and seven or eight *** two airfoils are the NACA63121(with a larger chord length)and the AMES63212;It is shown that the torsion angle of the former is smaller,and its wind drag ratio is larger;furthermore,the resistance is increased by about 66.3%on *** the scope of the study,the results show that the NACA63212 airfoil is better than the AMES63212 airfoil in terms of power,with an average improvement of about 2.8%.The simulation results have a certain guiding significance for selecting turbine blade airfoils and improving turbine efficiency.

关键词： Vertical solar power plant wilson theory airfoil modification numerical simulation chord length torsion angle

Co-selection may explain the unexpectedly high prevalence of plasmid-mediated colistin resistance gene mcr-1 in a Chinese broiler farm

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Zoological Research 2020年第5期41卷 569-575页

作者： Yu-Ping Cao Qing-Qing Lin Wan-Yun He Jing Wang meng-ying Yi Lu-Chao lv Jun Yang Jian-Hua Liu Jian-ying Guo College of Veterinary Medicine South China Agricultural UniversityGuangzhouGuangdong 510642China Guangdong Laboratory for Lingnan Modern Agriculture GuangzhouGuangdong 510642China

DEAR EDITOR,The rise of the plasmid-encoded colistin resistance gene mcr-1 is a major concern ***,during a routine surveillance,an unexpectedly high prevalence of Escherichia coli with reduced susceptibility to colistin (69.9%) was observed in a Chinese broiler ***-three (63.9%) *** isolates were positive for *** identified mcr-1-positive E.

关键词： globally routine explain