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Micro-power negative pressure wound technique reduces risk of incision infection following loop ileostomy closure

World Journal of Gastrointestinal Surgery 2024年第1期16卷 186-195页

作者： Deng-Yong Xu Bing-Jun Bai Lina Shan hui-yan wei Deng-Feng Lin Ya Wang Da Wang Department of Colorectal Surgery Sir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou 310016Zhejiang ProvinceChina Department of Wound&Ostomy Care Clinic Sir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou 310016Zhejiang ProvinceChina Department of Hospital Infection Control Zhejiang Cancer HospitalHangzhou 310005Zhejiang ProvinceChina

BACKGROUND Prophylactic loop ileostomy is an effective way to reduce the clinical severity of anastomotic leakage following radical resection of rectal *** surgical site infection(SSI)is a common complication after ileostomy *** To evaluate the efficacy and safety of the micro-power negative pressure wound technique(MPNPWT)in preventing incisional *** This was a prospective,randomized controlled clinical trial conducted at a single center.A total of 101 consecutive patients who underwent ileostomy closure after rectal cancer surgery with a prophylactic ileostomy were enrolled from January 2019 to December *** were randomly allocated into an MPNPWT group and a control *** MPNPWT group underwent intermittent suturing of the surgical incision with 2-0 Prolene and was covered with a micro-power negative pressure *** surgical outcomes were compared between the MPNPWT(n=50)and control(n=51)*** factors for incisional SSI were identified using logistic *** There were no differences in baseline characteristics between the MPNPWT(n=50)and control groups(n=51).The incisional SSI rate was significantly higher in the control group than in the MPNPWT group(15.7%vs 2.0%,P=0.031).However,MPNPWT did not affect other surgical outcomes,including intra-abdominal complications,operative time,and blood *** hospital stay length and hospitalization costs did not differ significantly between the two groups(P=0.069 and 0.843,respectively).None of the patients experienced adverse effects of MPNPWT,including skin allergy,dermatitis,and *** also helped heal the infected *** study indicated that MPNPWT was an independent protective factor[odds ratio(OR)=0.005,P=0.025)]and diabetes was a risk factor(OR=26.575,P=0.029)for incisional *** MPNPWT is an effective and safe way to prevent incisional SSI after loop ileostomy closure.

关键词： Micro-power negative pressure technique Ileostomy closure Incisional surgical site infection Infection prevention Postoperative incision

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Delayed neurological dysfunction following posterior laminectomy with lateral mass screw fixation:A case report and review of literature

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World Journal of Clinical Cases 2024年第7期12卷 1356-1364页

作者： Rui-Zhong yan Chao Chen Chu-Ran Lin yan-hui wei Zhi-Jian Guo Ya-Kun Li Quan Zhang He-Yi Shen Hao-Lin Sun Department of Orthopedics Taiyuan Central HospitalTaiyuan 030009Shanxi ProvinceChina Department of Orthopedics Graduate School Shanxi University of Traditional Chinese MedicineTaiyuan 030024Shanxi ProvinceChina Department of Orthopedics Peking University First HospitalBeijing 100034China

BACKGROUND While most complications of cervical surgery are reversible,some,such as symptomatic postoperative spinal epidural hematoma(SEH),which generally occurs within 24 h,are associated with increased morbidity and *** neurological dysfunction is diagnosed in cases when symptoms present>3 d *** to its rarity,the risk factors for delayed neurological dysfunction are ***,this condition can result in irreversible neurological deficits and serious *** this paper,we present a case of postoperative SEH that developed three days after hematoma *** SUMMARY A 68-year-old man with an American Spinal Injury Association(ASIA)grade C injury was admitted to our hospital with neck pain and tetraplegia following a *** C3-C7 posterior laminectomy and the lateral mass screw fixation surgery were performed on the tenth ***,the patient showed no changes in muscle strength or ASIA *** patient experienced neck pain and subcutaneous swelling on the third day postoperatively,his muscle strength decreased,and his ASIA score was grade *** resonance imaging showed hypointense signals on T1 weighted image(T1WI)and T2WI located behind the epidural space,with spinal cord *** surgical intervention for the hematoma was performed 12 h after *** hypoproteinemia and pleural effusion did not improve in the perioperative period,the patient recovered to ASIA grade C on day 30 after surgery,and was transferred to a functional rehabilitation exercise *** This case shows that amelioration of low blood albumin and pleural effusion is an important aspect of the perioperative management of cervical *** to relieve the pressure on the spinal cord should be performed as soon as possible to decrease neurological disabilities.

关键词： Delayed postoperative spinal epidural hematoma Complications Spinal surgery Hypoproteinemia Risk factor Case report

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儿童假性消化道出血的鉴别

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中国实用儿科杂志 2024年第7期39卷 485-488页

作者：颜伟慧王莹上海交通大学医学院附属新华医院儿消化营养科上海200092

如何鉴别真性和假性消化道出血是每个儿科医生需掌握的必备技能。假性消化道出血原因主要是来自口、鼻、咽、呼吸道的出血,以及外源性食物或药物干扰。多数情况下,通过病史问诊、体格检查、粪便隐血检测较易区分真性与假性消化道出血,... 详细信息

如何鉴别真性和假性消化道出血是每个儿科医生需掌握的必备技能。假性消化道出血原因主要是来自口、鼻、咽、呼吸道的出血,以及外源性食物或药物干扰。多数情况下,通过病史问诊、体格检查、粪便隐血检测较易区分真性与假性消化道出血,以尽可能避免不必要的侵入性检查和手术。但临床上也常有误诊和紧急情况发生,若经充分临床评估排除口、鼻、咽、呼吸道、消化道出血时,应警惕诈病或做作性障碍的可能。

关键词：消化道出血假性黑便便血呕血

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Therapeutic efficacy of acupuncture combined with neuromuscular joint facilitation in treatment of hemiplegic shoulder pain

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World Journal of Clinical Cases 2019年第23期7卷 3964-3970页

作者： yan-hui wei De-Chao Du Ke Jiang Department of Rehabilitation Nanjing University of Chinese MedicineNanjing 210028Jiangsu ProvinceChina Department of Rehabilitation Nanjing Red Cross HospitalNanjing 210028Jiangsu ProvinceChina Department of Rehabilitation Physiotherapy Jiangsu Provincial Hospital of Integration of Chinese and Western MedicineNanjing 210028Jiangsu ProvinceChina

BACKGROUND Stroke is a type of cerebrovascular disease with high prevalence,mortality,and onset of *** a neurodevelopmental therapy,neuromuscular joint facilitation(NJF)is widely used in the treatment of orthopedic and neurological disorders in the clinical *** is mainly used for central nervous system diseases or orthopedic diseases,movement disorders,and pain *** to related studies,NJF can also be used as a rehabilitation treatment in patients with hemiplegic shoulder pain(HSP).AIM To investigate the clinical efficacy of acupuncture combined with NJF in patients with *** Forty patients with HSP were randomly divided into a treatment group and a control *** treatment group was treated with acupuncture combined with NJF and the control group was treated with acupuncture *** patients were assessed by using the visual analogue scale(VAS),Fugl-Meyer assessment(FMA),Barthel index(BI),and passive range of motion(PROM)before and after the *** the clinical data were analyzed using SPSS 20.0 statistical *** There was no statistical difference in the general characteristics between the two *** the terms of duration of treatment,age,and pre-treatment indicators,the two groups were comparable(P>0.05).After the treatment,VAS,PROM,BI,and FMA scores were significantly improved in the two groups of patients(P0.05).CONCLUSION Both acupuncture alone and acupuncture combined with NJF in the treatment of HSP are effective,and can improve the clinical symptoms of *** combined with NJF can improve the upper limb motor function,relieve pain,and increase joint mobility in patients with *** combination therapy is better than acupuncture ***,there is no significant difference in

关键词： Acupuncture Neuromuscular joint facilitation Hemiplegic shoulder pain Visual analogue scale Fugl-Meyer assessment Therapy

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Effects and complications of placement of motility coupling post in porous polyethylene orbital implants

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2008年第6期9卷 464-469页

作者： Hong-guang CUI Rong-rong HU hui-yan LI wei HAN Department of Ophthalmology the First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310003 China

Objective： To investigate the effects and complications of primary and secondary placements of motility coupling post （MCP） in the unwrapped porous polyethylene orbital implant （PPOI） following enucleation. Methods： We investigated 198 patients who received PPOI implantation following the standard enucleation procedure in the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China, from 2002 to 2004. These patients were subgrouped into PPOI-only patients （112 cases, received PPOI following enucleation）, primary MCP patients （46 cases, received primary placement of MCP during PPOI operation）, and secondary MCP patients （40 cases, received secondary placement ofMCP 6 months after the initial surgery）. Effects and complications among these three groups were compared. Results： The PPOI-only patients took shorter treatment course when compared with other two MCP groups （P〈0.001）, without significant difference noted between the two MCP groups. However, the two MCP groups had better prosthetic motility than PPOI-only group （P〈0.001）, without significant difference between the two MCP groups. In the early stage, 2 eyes in the PPOI-only group and l eye in the primary MCP group had PPOI infection. In PPOI-only group, 3 （2.68%） eyes had PPOI exposure, which occurred after fitting the prostheses; 4 eyes （8.70%） in primary MCP group and 1 eye （2.50%） in secondary MCP had PPOI exposure, which occurred before fitting the prostheses. After prosthesis was fit successfully, the excessive discharge and granuloma were 33.9% and 1.79% in PPOI group-only, 53.3% and 8.9% in primary MCP group, and 52.5% and 7.5% in secondary MCP group, respectively. Conclusion： Both primary and secondary placements of MCP into the PPOI following enucleation can help patients to obtain desirable prosthetic motility, but may be associated with more complications. The primary placement of MCP with skilled operation in selected patients is more recommendable than secondary placemen

关键词： Porous polyethylene orbital implant (PPOI) Motility coupling post (MCP)

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Robust Interval State Estimation for Distribution Systems Considering Pseudo-measurement Interval Prediction

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Journal of Modern Power Systems and Clean Energy 2024年第1期12卷 179-188页

作者： Xu Zhang wei yan Meiqing Huo hui Li the School of Electrical Engineering Chongqing UniversityChongqing 400044China

Interval state estimation(ISE)can estimate state intervals of power systems according to confidence intervals of predicted pseudo-measurements,thereby analyzing the impact of uncertain pseudo-measurements on ***,predicted pseudo-measurements have prediction errors,and their confidence intervals do not necessarily contain the truth values,leading to estimation biases of the *** solve this problem,this paper proposes a pseudo-measurement interval prediction framework based on the Gaussian process regression(GPR)model,thereby improving the prediction accuracy of pseudo-measurement confidence ***,a weight assignment strategy for improving the robustness of weighted least squares(WLS)ISE is *** strategy quantifies the deviation between the pseudo-measurement intervals and their estimated intervals and assigns smaller weights to the pseudo-measurement intervals with larger deviations,thereby improving the estimation accuracy and robustness of the *** paper adopts the data from the supervisory control and data acquisition(SCADA)system of the New York Independent System Operator(NYISO).It verifies the advantages of the GPR method for pseudo-measurement interval prediction by comparing it with the quantile regression and neural network *** addition,this paper demonstrates the effectiveness of the proposed weight assignment strategy through the IEEE 14-bus ***,the differences in the estimation accuracy and the bad data identification between the robust interval state estimation and deterministic state estimation are discussed.

关键词： Interval state estimation interval analysis pseudo-measurement Gaussian process regression(GPR)

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Geochronological and geochemical constraints on the petrogenesis and geodynamic process of Hemler,Vlinder,and Il'ichev seamount lavas in NW Pacific

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Science China Earth Sciences 2024年第6期67卷 1856-1871页

作者： Xun wei yan ZHANG Xuefa SHI hui ZHANG Key Laboratory of Marine Geology and Metallogeny First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China Laboratory for Marine Geology Qingdao Marine Science and Technology CenterQingdao 266237China Shandong Key Laboratory of Deep Sea Mineral Resources Development(Preparatory) Qingdao 266061China

Oceanic intraplate volcanoes with linear age progressions are usually accepted to be derived from melting of an upwelling mantle *** seamount groups in NW Pacific,however,show complex age-distance relationships that are difficult to explain using the classic“mantle plume hypothesis”,and thus their origins are *** this study,we present ^(40)Ar-^(39)Ar age,geochemical,and Sr-Nd-Pb-Hf isotopic data of lavas from Hemler,Vlinder,and Il’ichev seamounts in NW Pacific,to elucidate their petrogenesis and geodynamic *** lavas from Hemler,Vlinder,and Il’ichev seamounts are classified as alkali basalt,basanite/nephelinite,and *** with Mg O>8 wt.%exhibit high contents of CaO,FeO^(T),and TiO_(2),similar to the composition of melts formed from reaction between carbonated eclogite-derived melts and fertile *** lavas have elevated Zr/Hf ratios(40.6-45.2)and negative Zr and Hf anomalies,indicating the presence of a carbonate component in the mantle *** are enriched in incompatible trace elements and have enriched mantle 1(EM1)-like SrNd-Pb-Hf isotopic *** isotopic compositions of Vlinder,Il’ichev basanite,and Hemler lavas in this study are similar to the Rarotonga *** occurring at the same seamount,the Il’ichev alkali basalts display more depleted SrNd-Hf isotopic compositions compared to Il’ichev *** to plate tectonic reconstruction results,the ages of Hemler(100.1 Ma),Vlinder pre-(100.2 Ma)and post-shield(87.5 Ma),and Il’ichev(56.4 Ma)lavas clearly deviate from the Macdonald,Arago,Rarotonga,and Samoa hotspot tracks,indicating that they cannot directly originate from mantle *** propose that in the mid-Cretaceous,when the Pacific plate passed over Rarotonga hotspot,melting of Rarotonga plume formed the Vlinder(main-shield stage),Pako,and Ioah *** Rarotonga(and possibly Samoa)plume materials would have been dispersed into the surrounding asthenosphere by mantle conve

关键词： Mantle plume Magellan seamount trail Carbonated mantle component Hotspot Lithosphere extension

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Efficient piezo-assisted near-infrared-light-driven Cr（Ⅵ） reduction over Bi2S3 nanowires transformed from ultrathin Bi2WO6 nanosheets

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Rare Metals 2024年第9期43卷 4333-4343页

作者： Qiang Zhang Yuan-Hao Cheng wei Liu hui-Nan Che yan-hui Ao Key Laboratory of Integrated Regulation and Resource Development On Shallow Lakes Ministry of Education College of Environment Hohai University

The utilization of piezo-photocatalytic technol ogy for environmental remediation under full spectrum solar light is promising but still ***,one dimensional Bi2S3nanowires,which can utilize both mechanical energy and near-infrared （NIR） light to remov hexavalent chromium (Cr （VI）) efficiently,were synthe sized by a restrained growth *** reaction rat constants of Cr （VI） reduction in piezo-photocatalyti process under NIR （800–2500 nm） reached 0.334 min-1which were 3.2 and 12.4 times as that of single piezo and photocatalytic *** formation of polarized electri fields and one-dimensional structure allow ultrafast sepa ration of charge carriers,thereby promoting the catalyti ***,due to the strong penetrability o NIR light,the piezo-photocatalysis performance in turbid solutions under NIR light (0.188 min-1) was even com parable to that under visible light (0.186 min-1).Thi study provides a new concept on the development of piezo photocatalytic technology for environmental remediation by utilization of NIR light and natural mechanical energy.

关键词： Bi2S3 nanowires Cr(VI) NIR light Piezo-photocatalysis

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The abundance, distribution, and enrichment mechanism of harmful trace elements in coals from Guizhou, Southwestern China

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Acta Geochimica 2024年第05期43卷 889-903页

作者： hui Hou wei Cheng Ruidong yang yan Zhang College of Mining National and Local Joint Laboratory of Engineering for Eff ective Utilization of Regional Mineral Resources from Karst Areas Guizhou Key Laboratory of Comprehensive Utilization of Non-Metallic Mineral Resources College of Resource and Environment Engineering Guizhou University

Coal seams can enrich a variety of harmful trace elements under specifi c geological conditions. The spatial distribution of harmful trace elements in coal is extremely uneven, and the distribution characteristics of each element content are diff erent. The harmful elements released in the process of coal mining and utilization will cause serious harm to the environment and the human body. It is of great resource signifi cance to study the geochemistry of coal that aff ects the enrichment and distribution characteristics of harmful trace elements. Based on the domestic and foreign literature on coal geochemistry in Guizhou published by previous investigators, this study counted 1097 sample data from 23 major coal-producing counties in Guizhou Province,systematically summarized the relevant research results of harmful trace elements in the coal of Guizhou, and revealed the overall distribution and enrichment characteristics of harmful trace elements in the coal of Guizhou. The results show that the average contents of Cd, Pb, Se, Cu,Mo, U, V, As, Hg, and Cr in coal of Guizhou are higher than those in Chinese coal and world coal. A variety of harmful trace elements in the coal of Guizhou have high background values, especially in Liupanshui, Xingyi and Qianbei coalfi eld. The enrichment of various harmful trace elements in the Late Permian coal in Guizhou is mainly related to the combined action of various geological and geochemical factors. The supply of terrigenous debris and sedimentary environment may be the basic background of the enrichment of harmful elements in western Guizhou,while low-temperature hydrothermal activity and volcanic ash deposition may be the main reasons for the enrichment of harmful elements in southwestern Guizhou.

关键词： Distribution characteristics Enrichment law Geological and geochemical features Guizhou Harmful trace elements

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Enhancing personalized exercise recommendation with student and exercise portraits

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Journal of Electronic Science and Technology 2024年第2期22卷 91-109页

作者： wei-wei Gao hui-Fang Ma yan Zhao Jing Wang Quan-Hong Tian College of Computer Science and Engineering Northwest Normal UniversityLanzhou730070China Computer Center of Gansu Province Lanzhou730070China

The exercise recommendation system is emerging as a promising application in online learning scenarios,providing personalized recommendations to assist students with explicit learning *** solutions generally follow a collaborative filtering paradigm,while the implicit connections between students(exercises)have been largely *** this study,we aim to propose an exercise recommendation paradigm that can reveal the latent connections between student-student(exercise-exercise).Specifically,a new framework was proposed,namely personalized exercise recommendation with student and exercise portraits(PERP).It consists of three sequential and interdependent modules:Collaborative student exercise graph(CSEG)construction,joint random walk,and recommendation list ***,CSEG is created as a unified heterogeneous graph with students’response behaviors and student(exercise)***,a joint random walk to take full advantage of the spectral properties of nearly uncoupled Markov chains is performed on CSEG,which allows for full exploration of both similar exercises that students have finished and connections between students(exercises)with similar ***,we propose to optimize the recommendation list to obtain different exercise *** analyses of two public datasets,the results demonstrated that PERP can satisfy novelty,accuracy,and diversity.

关键词： Educational data mining Exercise recommend Joint random walk Nearly uncoupled Markov chains Optimization Personalized learning

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