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Dioxygen affinities and catalytic oxidation performance of cobalt(Ⅱ) hydroxamates with benzo-15-crown-5 pendants

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Chinese Chemical Letters 2007年第1期18卷 103-106页

作者： Hong Bo Li Chuan Qin Wen Bing Yang xiao ping hu Sheng Ying Qin College of Material Science and Engineering Southwest University of Science and Technology Mianyang 621010 China Department of Chemistry Sichuan University Chengdu 610064 China

The oxygenation constants （Ko2） of cobalt（Ⅱ） hydroxamates （CoL^1 2-CoL^3 2） with benzo-15-crown-5 （B15C5） pendants were measured over the range of -5 to ＋20 ℃, and the values of thermodynamic parameters （ΔH^0 and ΔS^0） were calculated based on these （Ko2） values, Meanwhile, these crowned complexes were employed to the oxidation for p-xylene to p-toluic acid with air at 110Δ under normal atmospheric pressure. The effects of B15C5 pendant and the length of chain bonded to B15C5 in these complexes on the O2-binding capabilities and oxidation for p-xylene were investigated with the comparison of crown-free analogues CoL^4 2.

关键词： Benzo-15-crown-5 Cobalt(Ⅱ) hydroxamates Dioxygen affinity Catalytic oxidation p-Xylene

Disseminated infection by Fusarium solani in acute lymphocytic leukemia:A case report

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World Journal of Clinical Cases 2021年第22期9卷 6443-6449页

作者： Yu-Fang Yao Jia Feng Jie Liu Chao-Feng Chen Bo Yu xiao-ping hu Department of Dermatology&Venereology Peking University Shenzhen HospitalShenzhen 518036Guangdong ProvinceChina Department of Hematology Peking University Shenzhen HospitalShenzhen 518036Guangdong ProvinceChina

BACKGROUND In recent years,the rate of immunosuppressed patients has increased *** fungal infections usually occur in these patients,especially those who have had hematological malignances and received *** is a rare pathogenic fungus,it can lead to severely invasive Fusarium *** with the increased rate of immune compromised patients,the incidence of invasive Fusarium infections has also increased from the past few *** diagnosis and therapy are important to prevent further development to a more aggressive or disseminated *** SUMMARY We report a case of a 19-year-old male acute B-lymphocytic leukemia patient with fungal infection in the skin,eyeball,and knee joint during the course of *** performed skin biopsy,microbial cultivation,and molecular biological identification,and the pathogenic fungus was finally confirmed to be Fusarium *** patient was treated with oral 200 mg voriconazole twice daily intravenous administration of 100 mg liposomal amphotericin B once daily,and surgical *** colony-stimulating factor was administered to expedite neutrophil *** disseminated Fusarium solani infection eventually resolved,and there was no recurrence at the 3 mo *** Our case illustrates the early detection and successful intervention of a systemic invasive Fusarium *** are important to prevent progression to a more aggressive *** Fusarium infection requires the systemic use of antifungal agents and *** infection likely benefits from surgical debridement and the use of topical antifungal agents.

关键词： Acute lymphocytic leukemia Invasive fungal infection Fusarium sp. Neutropenia Skin lesions Case report

Majocchi’s granuloma caused by Trichophyton rubrum after facial injection with hyaluronic acid:A case report

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World Journal of Clinical Cases 2020年第17期8卷 3853-3858页

作者： Jie Liu Wen-Qiang Xin Lan-Ting Liu Chao-Feng Chen Lin Wu xiao-ping hu Department of Dermatology Skin Research Institute of Peking University Shenzhen HospitalPeking University Shenzhen HospitalShenzhen 518036Guangdong ProvinceChina Department of Neurosurgery Tianjin Medical University General HospitalTianjin 300052China

BACKGROUND Facial cosmetic procedures become popular for people with a desire to have a younger appearance,and cosmetic technology has developed rapidly over the past several ***,increasing complications related to cosmetic injections have been reported,and infection is one of the most serious problems and can cause anxiety and facial *** here report a case of Majocchi’s granuloma(MG)caused by Trichophyton rubrum after facial injection of hyaluronic *** SUMMARY A 37-year-old woman presented to our hospital with a history of red papules,nodules,and abscesses on her left zygomatic arch for 2 *** had received a cosmetic injection of hyaluronic acid on the left side of her face prior to the appearance of the *** caused by Trichophyton rubrum after facial injection of hyaluronic acid was diagnosed based on morphology and molecular biological *** vitro antifungal susceptibility testing was conducted according to the Clinical and Laboratory Standards Institute M38-A2 *** inhibitory concentrations were used to evaluate the antifungal *** antifungal agents and their minimal inhibitory concentrations for the strain were terbinafine(<0.5μg/mL),itraconazole(0.06μg/mL),amphotericin B(0.25μg/mL),fluconazole(32μg/mL),voriconazole(0.125μg/mL),posaconazole(0.125μg/mL),and isavuconazole(0.06μg/mL).We initially administered 250 mg/d oral terbinafine for 2 mo,but the patient still had painful papules,nodules and abscesses on her ***,we adjusted the treatment to itraconazole 400 mg/d for 8 wk based on the in vitro antifungal susceptibility testing *** skin lesions improved significantly,and there was no recurrence during *** This case revealed that facial injection of hyaluronic acid may cause serious *** susceptibility testing should be considered in the treatment of MG caused by Trichophyton rubrum.

关键词： Trichophyton rubrum Facial injection Hyaluronic acid Case report

Morbidity and Mortality of Nosocomial Infection after Cardiovascular Surgery： A Report of 1606 Cases

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Current Medical Science 2018年第2期38卷 329-335页

作者： Wan-li JIANG xiao-ping hu Zhi-peng hu Zheng TANG Hong-bing WU Liang-hao CHEN Zhi-wei WANG Ying-an JIANG Department of Cardiovascular Surgery Renmin Hospital of Wuhan UniversityWuhan 430060 China Department of Infectious Diseases Renmin Hospital of Wuhan UniversityWuhan 430060 China

Nosocomial infection （NI） is one of the most significant complications arising after open heart surgery, and leads to increased mortality, hospitalization time and health resource allocation. This study investigated the morbidity, mortality, and independent risk factors associated with NI following open heart surgery. We retrospectively surveyed the records of 1606 consecutive cardiovascular surgical patients to identify those that developed NI. The NI selection criteria were based on the Centers for Disease Control and Prevention （CDC） guidelines. The term NI encompasses surgical site infection （SSI）, central venous catheter-related infection （CVCRI）, urinary tract infection （UTI）, respiratory tract infection and pneumonia （RTIP）, as well as other types of infections. Of 1606 cardiovascular surgery patients, 125 developed NI （7.8%, 125/1606）. The rates of NI following surgery for congenital malformation, valve replacement, and coronary artery bypass graft were 2.6% （15/587）, 5.5% （26/473） and 13.6% （32/236）, respectively. The NI rate following surgical repair of aortic aneurysm or dissection was 16.8% （52/310）. Increased risk of NI was detected for patients with a prior preoperative stay 〉3 days （OR=2.11, 95% CI=1.39-3.20）, diabetes （OR=2.00, 95%=CI 1.26-3.20）, length of surgery 〉6 h （OR=2.26, 95% CI=1.47-3.47）, or postoperative cerebrovascular accident （OR=4.08, 95% CI=1.79-9.29）. Greater attention should be paid toward compliance with ventilator and catheter regulations in order to decrease NI morbidity and mortality following cardiovascular procedures.

关键词： nosocomial infection cardiovascular surgery morbidity mortality

Mycobacterium abscessus infection after facial injection of argireline:A case report

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World Journal of Clinical Cases 2021年第8期9卷 1996-2000页

作者： Chao-Feng Chen Jie Liu Shuang-Shuang Wang Yu-Fang Yao Bo Yu xiao-ping hu Department of Dermatology&Venereology Peking University Shenzhen HospitalShenzhen 518036Guangdong ProvinceChina

BACKGROUND The incidence of infection with Mycobacterium abscessus(***)has increased in recent *** increase is partly associated with invasive cosmetic *** SUMMARY The purpose of this case summary is to increase clinicians'awareness of *** infection and reduce mycobacterial infection caused by cosmetic *** report the case of a 45-year-old woman who received acetyl hexapeptide-8(argireline)injections in the forehead and temples,and erythema,nodules,and abscesses appeared at the injection sites after one *** pus specimens were examined by microbiological culture and confirmed to be positive for *** 500 mg twice daily and moxifloxacin 400 mg once daily were administered for 5 mo and the lesions gradually *** We report here for the first time a case of infection with *** after argireline *** condition is easily misdiagnosed as a common bacterial *** examinations are helpful for diagnosis and standardized cosmetic procedures can prevent infection with ***.

关键词： Argireline Mycobacterium abscessus Nontuberculous Mycobacterium Infection Injection Antibiotic therapy Case report

Investigation of mechanical and electrical characteristics of selfsensing pneumatic torsional actuators

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Science China(Technological Sciences) 2024年第1期67卷 130-142页

作者： xiao Wei hu DeAn hu GuoLiang xiao Yihua Key Laboratory of Conveyance and Equipment Ministry of EducationEast China Jiaotong UniversityNanchang 330013China Key Laboratory of Advanced Design and Simulation Techniques for Special Equipment Ministry of EducationHunan UniversityChangsha 410082China

Soft pneumatic actuators are one of the most promising actuation for soft robots,and great achievements have been *** it remains challenging to endow sensing capabilities to pneumatic actuators,especially for the sensing ability originating directly from the actuator ***,a self-sensing pneumatic torsional actuator(SPTA)is designed based on the electromagnetic induction effect and magnetically responsive *** SPTA can generate feedback voltage and current with the deformation,in which the sensing function comes from its inherent *** investigate the mechanical and electrical characteristics,an experimental platform and a finite element model are established,*** find that the torsion angle and output torque increase in nonlinear with the actuating *** maximum torsion angle is 66.35°,which is 84.34%of that for the actuator fabricated by pure *** maximum output torque(24.9 N mm)improves by 23.19%compared with the actuator made by pure *** regards the electrical characteristics,the maximum feedback voltage and current are 2.90μV and 29.50 nA when the SPTA is actuated by a pressure of−40 *** also demonstrate that the relationship between the torsion angle and the magnetic flux change is approximately ***,the number of turns of wires,magnetic powders contents,and magnetic direction on the feedback voltage and current are *** show that the feedback voltage and current can be enhanced by increasing the number of turns and magnetic powders *** envision that the SPTA would be promising for soft robots to realize their accuracy control and intelligentization.

关键词： pneumatic torsional actuators self-sensing feedback voltage finite element modeling soft robots

Research of Design Disciplines Workshop Collaborative Innovation Teaching Model——A Case Study of Elderly Supplies Design Course

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教育研究前沿（中英文版） 2016年第2期6卷 69-75页

作者： Qiao Chen xiao-ping hu School of Design Guangzhou Higher Education Mega Centre South China University of Technology Panyu District Guangzhou 510006 People's Republic of China

POLYMERIZATION OF γ-STEARYL-α,l-GLUTAMATE N-CARBOXYANHYDRIDE USING RARE EARTH COORDINATION CATALYSTS

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Chinese Journal of Polymer Science 2000年第4期18卷 369-372页

作者： xiao-ping hu Jian Wu Zhi-kang Xu Lin-xian Feng Institute of Polymer Science, Zhejiang University, Hangzhou 310027, China Department of Chemistry, Zhejiang University, Hangzhou 310027, China 浙江大学浙江杭州

A rare earth coordination system was first investigated as a new type of catalyst for the ring-openingpolymerization of α-amino acid N-carboxyanhydrides (NCAs). The results for the polymerization of γ-stearyl-α,L-glutamate(SLG) NCA using neodymium acetylacetonate (Nd(acac)_3)- or neodymium tris(2-ethylhexylphosphonate) (Nd(P_(204))_3)-triethylaluminum-water as catalysts were compared with those using conventional catalysts. It was found that the helicalpoly(γ-stearyl-L-glutamate) with high molecular weight as well as narrow molecular weight distribution can be obtained inthe presence of Nd(acac)_3/AlEt_3-1/2H_2O. The polymer obtained was characterized by IR and NMR spectroscopy.

关键词： Rare earth coordination catalyst Ring-opening polymerization Polypeptide Poly(γ-stearyl-α,L-glutamate)

CRD-CGAN:category-consistent and relativistic constraints for diverse text-to-image generation

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Frontiers of Computer Science 2024年第1期18卷 61-75页

作者： Tao hu Chengjiang LONG Chunxia xiao College of Intelligent Systems Science and Engineering Hubei Minzu UniversityEnshi 445000China School of Computer Science Wuhan UniversityWuhan 430072China Key Laboratory of Performing Art Equipment&System Technology Ministry of Culture and TourismBeijing 100007China Meta Reality Labs BurlingameCA94010USA

Generating photo-realistic images from a text description is a challenging problem in computer *** works have shown promising performance to generate synthetic images conditional on text by Generative Adversarial Networks(GANs).In this paper,we focus on the category-consistent and relativistic diverse constraints to optimize the diversity of synthetic *** on those constraints,a category-consistent and relativistic diverse conditional GAN(CRD-CGAN)is proposed to synthesize K photo-realistic images *** use the attention loss and diversity loss to improve the sensitivity of the GAN to word attention and ***,we employ the relativistic conditional loss to estimate the probability of relatively real or fake for synthetic images,which can improve the performance of basic conditional ***,we introduce a category-consistent loss to alleviate the over-category issues between K synthetic *** evaluate our approach using the Caltech-UCSD Birds-200-2011,Oxford 102 flower and MS COCO 2014 datasets,and the extensive experiments demonstrate superiority of the proposed method in comparison with state-of-the-art methods in terms of photorealistic and diversity of the generated synthetic images.

关键词： text-to-image diverse conditional GAN relativi-stic category-consistent