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Serum cystatin C,monocyte/high-density lipoprotein-C ratio,and uric acid for the diagnosis of coronary heart disease and heart failure 被引量:1
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作者 Ming Li Da-Hao Yuan +2 位作者 Zhi Yang Teng-Xiang Luw Xiao-Biao Zou 《World Journal of Clinical Cases》 SCIE 2024年第18期3461-3467,共7页
BACKGROUND Coronary heart disease(CHD)and heart failure(HF)are the major causes of morbidity and mortality worldwide.Early and accurate diagnoses of CHD and HF are essential for optimal management and prognosis.Howeve... BACKGROUND Coronary heart disease(CHD)and heart failure(HF)are the major causes of morbidity and mortality worldwide.Early and accurate diagnoses of CHD and HF are essential for optimal management and prognosis.However,conventional diagnostic methods such as electrocardiography,echocardiography,and cardiac biomarkers have certain limitations,such as low sensitivity,specificity,availability,and cost-effectiveness.Therefore,there is a need for simple,noninvasive,and reliable biomarkers to diagnose CHD and HF.AIM To investigate serum cystatin C(Cys-C),monocyte/high-density lipoprotein cholesterol ratio(MHR),and uric acid(UA)diagnostic values for CHD and HF.METHODS We enrolled 80 patients with suspected CHD or HF who were admitted to our hospital between July 2022 and July 2023.The patients were divided into CHD(n=20),HF(n=20),CHD+HF(n=20),and control groups(n=20).The serum levels of Cys-C,MHR,and UA were measured using immunonephelometry and an enzymatic method,respectively,and the diagnostic values for CHD and HF were evaluated using receiver operating characteristic(ROC)curve analysis.RESULTS Serum levels of Cys-C,MHR,and UA were significantly higher in the CHD,HF,and CHD+HF groups than those in the control group.The serum levels of Cys-C,MHR,and UA were significantly higher in the CHD+HF group than those in the CHD or HF group.The ROC curve analysis showed that serum Cys-C,MHR,and UA had good diagnostic performance for CHD and HF,with areas under the curve ranging from 0.78 to 0.93.The optimal cutoff values of serum Cys-C,MHR,and UA for diagnosing CHD,HF,and CHD+HF were 1.2 mg/L,0.9×10^(9),and 389μmol/L;1.4 mg/L,1.0×10^(9),and 449μmol/L;and 1.6 mg/L,1.1×10^(9),and 508μmol/L,respectively.CONCLUSION Serum Cys-C,MHR,and UA are useful biomarkers for diagnosing CHD and HF,and CHD+HF.These can provide information for decision-making and risk stratification in patients with CHD and HF. 展开更多
关键词 Serum cystatin C Monocyte/high-density lipoprotein-C ratio Uric acid Coronary heart disease Heart failure Risk stratification
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Tandem hydroalkylation and deoxygenation of lignin-derived phenolics to synthesize high-density fuels
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作者 Rui Yu Zhensheng Shen +6 位作者 Yanan Liu Chengxiang Shi Juncong Qu Lun Pan Zhenfeng Huang Xiangwen Zhan g Ji-Jun Zou 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2024年第2期104-109,共6页
Lignin is the most abundant naturally phenolic biomass,and the synthesis of high-performance renewable fuel from lignin has attracted significant attention.We propose the efficient synthesis of high-density fuels usin... Lignin is the most abundant naturally phenolic biomass,and the synthesis of high-performance renewable fuel from lignin has attracted significant attention.We propose the efficient synthesis of high-density fuels using simulated lignin cracked oil in tandem with hydroalkylation and deoxygenation reactions.First,we investigated the reaction pathway for the hydroalkylation of phenol,which competes with the hydrodeoxygenation form cyclohexane.And then,we investigated the effects of metal catalyst types,the loading amount of metallic,acid dosage,and reactant ratio on the reaction results.The phenol hydroalkylation and hydrodeoxygenation were balanced when 180℃ and 5 MPa H_(2)with the alkanes yield of 95%.By extending the substrate to other lignin-derived phenolics and simulated lignin cracked oil,we obtained the polycyclic alkane fuel with high density of 0.918 g·ml^(-1)and calorific value of41.2 MJ·L^(-1).Besides,the fuel has good low-temperature properties(viscosity of 9.3 mm^(2)·s^(-1)at 20℃ and freezing point below-55℃),which is expected to be used as jet fuel.This work provides a promising way for the easy and green production of high-density fuel directly from real lignin oil. 展开更多
关键词 high-density fuel BIOFUEL Hydrogenation ALKYLATION Lignin Phenolics
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High density dislocations enhance creep ageing response and mechanical properties in 2195 alloy sheet
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作者 WEI Shuo MA Pei-pei +3 位作者 CHEN Long-hui YANG Jian-shi ZHAN Li-hua LIU Chun-hui 《Journal of Central South University》 SCIE EI CAS CSCD 2024年第7期2194-2209,共16页
The creep strain of conventionally treated 2195 alloy is very low,increasing the difficulty of manufacturing Al-Cu-Li alloy sheet parts by creep age forming.Therefore,finding a solution to improve the creep formabilit... The creep strain of conventionally treated 2195 alloy is very low,increasing the difficulty of manufacturing Al-Cu-Li alloy sheet parts by creep age forming.Therefore,finding a solution to improve the creep formability of Al-Cu-Li alloy is vital.A thorough comparison of the effects of cryo-deformation and ambient temperature large pre-deformation(LPD)on the creep ageing response in the 2195 alloy sheet at 160℃with different stresses has been made.The evolution of dislocations and precipitates during creep ageing of LPD alloys are revealed by X-ray diffraction and transmission electron microscopy.High-quality 2195 alloy sheet largely pre-deformed by 80%without edge-cracking is obtained by cryo-rolling at liquid nitrogen temperature,while severe edge-cracking occurs during room temperature rolling.The creep formability and strength of the 2195 alloy are both enhanced by introducing pre-existing dislocations with a density over 1.4×10^(15)m^(−2).At 160℃and 150 MPa,creep strain and creep-aged strength generally increases by 4−6 times and 30−50 MPa in the LPD sample,respectively,compared to conventional T3 alloy counterpart.The elongation of creep-aged LPD sample is low but remains relevant for application.The high-density dislocations,though existing in the form of dislocation tangles,promote the formation of refined T1 precipitates with a uniform dispersion. 展开更多
关键词 creep ageing Al-Cu-Li alloy high dislocation density cryogenic rolling dislocation strengthening
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Kinetic-Thermodynamic Promotion Engineering toward High-Density Hierarchical and Zn-Doping Activity-Enhancing ZnNiO@CF for High-Capacity Desalination
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作者 Jie Ma Siyang Xing +2 位作者 Yabo Wang Jinhu Yang Fei Yu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第8期35-50,共16页
Despite the promising potential of transition metal oxides(TMOs)as capacitive deionization(CDI)electrodes,the actual capacity of TMOs electrodes for sodium storage is significantly lower than the theoretical capacity,... Despite the promising potential of transition metal oxides(TMOs)as capacitive deionization(CDI)electrodes,the actual capacity of TMOs electrodes for sodium storage is significantly lower than the theoretical capacity,posing a major obstacle.Herein,we prepared the kinetically favorable Zn_(x)Ni_(1−x)O electrode in situ growth on carbon felt(Zn_(x)Ni_(1−x)O@CF)through constraining the rate of OH^(−)generation in the hydrothermal method.Zn_(x)Ni_(1−x)O@CF exhibited a high-density hierarchical nanosheet structure with three-dimensional open pores,benefitting the ion transport/electron transfer.And tuning the moderate amount of redox-inert Zn-doping can enhance surface electroactive sites,actual activity of redox-active Ni species,and lower adsorption energy,promoting the adsorption kinetic and thermodynamic of the Zn_(0.2)Ni_(0.8)O@CF.Benefitting from the kinetic-thermodynamic facilitation mechanism,Zn_(0.2)Ni_(0.8)O@CF achieved ultrahigh desalination capacity(128.9 mgNaCl g^(-1)),ultra-low energy consumption(0.164 kW h kgNaCl^(-1)),high salt removal rate(1.21 mgNaCl g^(-1) min^(-1)),and good cyclability.The thermodynamic facilitation and Na^(+)intercalation mechanism of Zn_(0.2)Ni_(0.8)O@CF are identified by the density functional theory calculations and electrochemical quartz crystal microbalance with dissipation monitoring,respectively.This research provides new insights into controlling electrochemically favorable morphology and demonstrates that Zn-doping,which is redox-inert,is essential for enhancing the electrochemical performance of CDI electrodes. 展开更多
关键词 Zinc-nickel metal oxide high-density hierarchical Capacitive deionization Zinc-doping
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Neglected congenital bilateral knee dislocation treated by quadricepsplasty with semitendinosus and sartorius transfer:A case report
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作者 Osama M Qasim Abdulaziz A Abdulaziz +2 位作者 Nibras K Aljabri Khalid S Albaqami Rayan M Suqaty 《World Journal of Orthopedics》 2024年第8期807-812,共6页
BACKGROUND Congenital knee dislocation(CKD)is a rare condition,which accounts for 1%of congenital hip dislocations.It can present as an isolated condition or coexist with other genetic disorders.Treatment options incl... BACKGROUND Congenital knee dislocation(CKD)is a rare condition,which accounts for 1%of congenital hip dislocations.It can present as an isolated condition or coexist with other genetic disorders.Treatment options include serial casting,percutaneous quadriceps recession,and V-Y quadricepsplasty(VYQ).The pathogenesis and hereditary patterns of CKD are not fully understood,with most cases being familial.CKD is usually managed immediately after birth.However,in this report,the patient was neglected for 2 years.CASE SUMMARY A 2-year-old girl with bilateral CKD after birth presented to our hospital after failed serial casting;the patient had seizures and limited access to healthcare because of her family’s low socioeconomic status.Her birth was noted for a breech presentation accompanied by oligohydramnios.The delivery took a long time,requiring immediate medical interventions.As an infant,she had chronic diseases,including a small patent ductus arteriole,multicystic dysplastic kidney disease,and epilepsy.She was found to have a bilateral knee dislocation of approximately-90°on hyperextension.A multidisciplinary team was involved,and medical care was optimized.She underwent VYQ plus semitendinosus and sartorius transfer.After four postoperative follow-ups,her knees were regaining mobility,and she could walk for 2-3 steps without assistance.CONCLUSION This report highlights the importance of early intervention and recommends extensive studies of the management in similar cases. 展开更多
关键词 Knee dislocation Congenital knee dislocation V-Y quadricepsplasty NEGLECT Neglected knee dislocation Pediatric orthopedics Case report
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A natural nano-platform:Advances in drug delivery system with recombinant high-density lipoprotein
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作者 Zhilong Xie Guohui Zhang +6 位作者 Ya Meng Yefei Tong Jian Deng Honghui Li Qingqing Ma Shisong Han Wenjun Ni 《Chinese Chemical Letters》 SCIE CAS CSCD 2024年第11期74-86,共13页
Developing natural nano-platforms with high biocompatibility and natural targeting ability represents great significance for drug delivery.High-density lipoprotein(HDL),a natural lipid-protein complex,plays important ... Developing natural nano-platforms with high biocompatibility and natural targeting ability represents great significance for drug delivery.High-density lipoprotein(HDL),a natural lipid-protein complex,plays important roles in physiological activities,particularly in reverse cholesterol transport(RCT)and be closely associated with atherosclerotic cardiovascular diseases.Recent studies have demonstrated that HDLs have the potential to serve as ideal drug carriers.Recombinant HDLs(r HDLs)have been used to encapsulate substances such as small interfering RNA(siRNA),drugs,and contrast agents,fully utilizing the biocompatibility and targeting ability of r HDL in the body and providing new strategies for drug delivery and disease treatment.In this review,we discussed in detail the basic principles of HDL as a drug delivery system,the mechanisms of targeted drug delivery,and several methods for preparing HDL nanoparticles.Afterward,we comprehensively reviewed the applications of HDL as a drug carrier in cardiovascular diseases,cancer treatment(such as glioblastoma,breast cancer,hepatocellular carcinoma and urologic cancers)and some other fields.Finally,we reviewed the therapeutic effects and safety of HDL nanoparticles in clinical studies.Through a review and summary of these research advances,we aim to fully understand the potential of HDL as a drug carrier in clinical applications,providing valuable references and guidance for future research and expedites the translational application of HDL as drug carriers. 展开更多
关键词 high-density lipoproteins Drug delivery APOLIPOPROTEIN Targeting mechanisms HDL nanoparticle preparation Cardiovascular disease Cancer treatment
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Elbow Dislocation in Children: About Two Cases and Review of the Literature
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作者 Nyanit Bob Dorcas Atangana Cédric Paterson +10 位作者 Mantho Fopa Pauline Kouna TsalaIrène Nadine Mvouni Bob Thérèse Raissa Bekima King Francis Ateaze Chrisantus Dikongue Diwondi Audrey Ndongo Réné Akoa Manga Ismael Evoni Molo Tatiana Choupo Guetchuin Stéphane Handy Eone Daniel 《Open Journal of Pediatrics》 2024年第2期218-226,共9页
Background: Elbow dislocations in pediatric patients are rare injuries. This is a therapeutic emergency because a delay in treatment can have disastrous consequences on the functional level of the upper limb. Objectiv... Background: Elbow dislocations in pediatric patients are rare injuries. This is a therapeutic emergency because a delay in treatment can have disastrous consequences on the functional level of the upper limb. Objective: To present the management of elbow dislocation in children in cases of limited resources. Presentation of the Cases: These were 2 older male children aged 7 and 9 years old, admitted to the emergency room for painful functional impotence of the right elbow after a fall and landing on the right hand. Clinical and radiological examinations were in favor of posterior elbow dislocations. The reductions were carried out under sedation and immobilization in Jersey. According to Robert’s criteria, the functional result was excellent in both patients. Conclusion: Emergency reduction and immobilization whatever the means ensure an excellent functional prognosis even in cases of limited resources. 展开更多
关键词 Elbow dislocation CHILD DIAGNOSIS TREATMENT Limited Resources
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C1C2 Wiring and Posttraumatic Atlantoaxial Dislocation: An Effective and Cheap Surgical Procedure in a Developing Country
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作者 Ibrahim Dao Massimiliano Visocchi +11 位作者 Salah Sow John Jabang Ousmane Ouattara Astride Somda Abdoulaye Sanou Elie Dibloni Nassoum Arsène Tossou Narcisse Ouedraogo Frédéric Bako Massadiami Soulama Malick Diallo Patrick Wendpouiré Hamed Dakouré 《Surgical Science》 2024年第5期357-370,共14页
Objectives: Atlantoaxial dislocation remains a rare and serious condition with a high preoperative and postoperative morbidity and mortality. Its successful surgical management is still challenging and gratifying for ... Objectives: Atlantoaxial dislocation remains a rare and serious condition with a high preoperative and postoperative morbidity and mortality. Its successful surgical management is still challenging and gratifying for neurosurgeons. Several technics have been described such as wiring, trans articular screwing, C1C2 screwing with plate and screw introduced by Goel et al., and modified by insertion of polyaxially screw and rod many years later by Harms. Unavailability and expensiveness of upper cervical spine instrumentation device led us to C1C2 Wiring resulting in a good outcome. Finally, a quadriplegic patient with a more comfortable financial condition had ordered devices from abroad and benefit for Goel and Harms screwing technique and improved dramatically from ASIA A to ASIA E. Material and methods: This is a retrospective study of patients managed in our department by a same neurosurgeon from January 2019 to April 2024. Results: We defined 6 men and 1 woman with an average age of 33 years. Unrestrained driver in a rollover motor vehicle accident was most common. Only one patient was neurologically intact on admission. Neurovegetative disorders were noticed in one patient. Dislocation was associated to a fracture of the dens in two patients. Three patients have been successfully operated with remarkable outcome, mostly from ASIA A to E. Conclusion: C1C2 dislocation is a serious condition and C1C2 Wiring represents an effective and cheaper technic. Therefore, this technic should deserve consideration above all in low incomes countries when screwing devices are not available. Seatbelt should be demanded for motor vehicle drivers and passengers. 展开更多
关键词 Superior Cervical Spine dislocation Fracture WIRING Screwing Neurovegetative Disorders
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Monocyte to high-density lipoprotein cholesterol ratio as a predictor of the activity of thyroid-associated ophthalmopathy
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作者 Xing-Hong Sun Xiao-Wen Zhang +5 位作者 Chen Han Xin Dou Xue-Ying He Meng-Ru Su Feng Jiang Song-Tao Yuan 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2024年第12期2276-2281,共6页
AIM:To evaluate the relationship between monocyte to high-density lipoprotein cholesterol ratio(MHR)and the disease activity of thyroid-associated ophthalmopathy(TAO).METHODS:A total of 87 patients were classified int... AIM:To evaluate the relationship between monocyte to high-density lipoprotein cholesterol ratio(MHR)and the disease activity of thyroid-associated ophthalmopathy(TAO).METHODS:A total of 87 patients were classified into two groups based on clinical activity score(CAS)scoring criteria:high CAS group(n=62,the CAS score was≥3);low CAS group(n=25,the CAS score was<3).In addition,a group of healthy people(n=114)were included to compared the MHR.Proptosis,MHR,average signal intensity ratio(SIR),average lacrimal gland(LG)-SIR,average extraocular muscles(EOM)area from 87 patients with TAO were calculated in magnetic resonance imaging(MRI),and compared between these two groups.Correlation testing was utilized to evaluate the association of parameters among the clinical variables.RESULTS:Patients in high CAS group had a higher proptosis(P=0.041)and MHR(P=0.048).Compared to the healthy group,the MHR in the TAO group was higher(P=0.001).Correlation testing declared that CAS score was strongly associated with proptosis and average SIR,and MHR was positively associated with CAS score,average SIR,and average LG-SIR.The area under the receiver operating characteristic curve(AUC)of MHR was 0.6755.CONCLUSION:MHR,a novel inflammatory biomarker,has a significant association with CAS score and MRI imaging(average SIR and LG-SIR)and it can be a new promising predictor during the active phase of TAO. 展开更多
关键词 thyroid-associated ophthalmopathy monocyte to high-density lipoprotein cholesterol ratio disease activity
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Effects of interstitial cluster mobility on dislocation loops evolution under irradiation of austenitic steel
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作者 Xin‑Hua Yan Lu Sun +5 位作者 Du Zhou Teng Xie Chang Peng Ye‑Xin Yang Li Chen Zhen‑Feng Tong 《Nuclear Science and Techniques》 SCIE EI CAS CSCD 2024年第8期69-78,共10页
The evolution of dislocation loops in austenitic steels irradiated with Fe^(+)is investigated using cluster dynamics(CD)simulations by developing a CD model.The CD predictions are compared with experimental results in... The evolution of dislocation loops in austenitic steels irradiated with Fe^(+)is investigated using cluster dynamics(CD)simulations by developing a CD model.The CD predictions are compared with experimental results in the literature.The number density and average diameter of the dislocation loops obtained from the CD simulations are in good agreement with the experimental data obtained from transmission electron microscopy(TEM)observations of Fe~+-irradiated Solution Annealed 304,Cold Worked 316,and HR3 austenitic steels in the literature.The CD simulation results demonstrate that the diffusion of in-cascade interstitial clusters plays a major role in the dislocation loop density and dislocation loop growth;in particular,for the HR3 austenitic steel,the CD model has verified the effect of temperature on the density and size of the dislocation loops. 展开更多
关键词 Cluster dynamics dislocation loops In-cascade interstitial clusters Austenitic steels
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Testicular dislocation:A rare complication of scrotal trauma
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作者 SerdarÖzdemir İbrahim Altunok Gökhanİşat 《Journal of Acute Disease》 2024年第3期125-126,共2页
Scrotal trauma,though uncommon,can have severe consequences,and one such complication is testicular dislocation.This occurs when the testicle is displaced from its normal anatomical position within the scrotum due to ... Scrotal trauma,though uncommon,can have severe consequences,and one such complication is testicular dislocation.This occurs when the testicle is displaced from its normal anatomical position within the scrotum due to a traumatic event.Understanding the mechanisms,diagnosis,and management of testicular dislocation is paramount in providing optimal care for affected individuals[1].Traumatic incidents,such as sports injuries,motor vehicle accidents,or direct blows to the scrotum,can result in testicular trauma[2].The condition demands immediate medical attention to prevent further complications,including vascular compromise and testicular ischemia.Diagnosing testicular dislocation involves a thorough physical examination and often necessitates imaging studies,such as ultrasound,to precisely determine the extent of the displacement and assess potential vascular compromise.Once diagnosed,prompt intervention is crucial to reposition the dislocated testicle and restore blood flow.Treatment options may include manual reduction or surgical intervention,depending on the severity of the dislocation and associated injuries[3].Close monitoring in the post-treatment period is essential to identify and manage any complications promptly. 展开更多
关键词 INJURIES dislocation PROMPT
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Solute atom segregation to I1 stacking fault and its bounding partial dislocations in a Mg–Bi alloy
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作者 Cong He Yong Zhang +2 位作者 Zhiqiao Li Houwen Chen Jian-Feng Nie 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2024年第8期3135-3141,共7页
Stacking faults(SFs)and the interaction between solute atoms and SFs in a Mg–Bi alloy are investigated using aberration-corrected scanning transmission electron microscopy.It is found that abundant I_(1)SFs are gener... Stacking faults(SFs)and the interaction between solute atoms and SFs in a Mg–Bi alloy are investigated using aberration-corrected scanning transmission electron microscopy.It is found that abundant I_(1)SFs are generated after cold rolling and are mainly distributed inside{1012}twins.After aging treatment,the formation of single-layer and three-layer Bi atom segregation in the vicinity of I_(1)fault are clearly observed.Bi segregation also occurs at the 1/6<2203>bounding Frank partial dislocation cores.The segregation behaviors in I_(1)fault and Frank dislocations are discussed and rationalized using first-principles calculations. 展开更多
关键词 Mg alloys Suzuki segregation Stacking fault Frank partial dislocation
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Roughness characterization and shearing dislocation failure for rock-backfill interface
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作者 Meifeng Cai Zhilou Feng +3 位作者 Qifeng Guo Xiong Yin Minghui Ma Xun Xi 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2024年第6期1167-1176,共10页
Shearing dislocation is a common failure type for rock–backfill interfaces because of backfill sedimentation and rock strata movement in backfill mining goaf.This paper designed a test method for rock–backfill shear... Shearing dislocation is a common failure type for rock–backfill interfaces because of backfill sedimentation and rock strata movement in backfill mining goaf.This paper designed a test method for rock–backfill shearing dislocation.Using digital image techno-logy and three-dimensional(3D)laser morphology scanning techniques,a set of 3D models with rough joint surfaces was established.Further,the mechanical behavior of rock–backfill shearing dislocation was investigated using a direct shear test.The effects of interface roughness on the shear–displacement curve and failure characteristics of rock–backfill specimens were considered.The 3D fractal dimen-sion,profile line joint roughness coefficient(JRC),profile line two-dimensional fractal dimension,and the surface curvature of the frac-tures were obtained.The correlation characterization of surface roughness was then analyzed,and the shear strength could be measured and calculated using JRC.The results showed the following:there were three failure threshold value points in rock–backfill shearing dis-location:30%–50%displacement before the peak,70%–90%displacement before the peak,and 100%displacement before the peak to post-peak,which could be a sign for rock–backfill shearing dislocation failure.The surface JRC could be used to judge the rock–backfill shearing dislocation failure,including post-peak sliding,uniform variations,and gradient change,corresponding to rock–backfill disloca-tion failure on the field site.The research reveals the damage mechanism for rock–backfill complexes based on the free joint surface,fills the gap of existing shearing theoretical systems for isomerism complexes,and provides a theoretical basis for the prevention and control of possible disasters in backfill mining. 展开更多
关键词 rock–backfill ROUGHNESS correlation characterization shearing dislocation interface failure
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Moiré superlattices arising from growth induced by screw dislocations in layered materials
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作者 田伏钰 Muhammad Faizan +2 位作者 贺欣 孙远慧 张立军 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第7期72-77,共6页
Moiré superlattices(MSLs) are modulated structures produced from homogeneous or heterogeneous two-dimensional layers stacked with a twist angle and/or lattice mismatch. Enriching the methods for fabricating MSL a... Moiré superlattices(MSLs) are modulated structures produced from homogeneous or heterogeneous two-dimensional layers stacked with a twist angle and/or lattice mismatch. Enriching the methods for fabricating MSL and realizing the unique emergent properties are key challenges in its investigation. Here we recommend that the spiral dislocation driven growth is another optional method for the preparation of high quality MSL samples. The spiral structure stabilizes the constant out-of-plane lattice distance, causing the variations in electronic and optical properties. Taking SnS_(2) MSL as an example, we find prominent properties including large band gap reduction(~ 0.4 e V) and enhanced optical activity. Firstprinciples calculations reveal that these unusual properties can be ascribed to the locally enhanced interlayer interaction associated with the Moiré potential modulation. We believe that the spiral dislocation driven growth would be a powerful method to expand the MSL family and broaden their scope of application. 展开更多
关键词 Moirésuperlattices interlayer interaction spiral dislocation layered materials
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Comparison of Surgical Techniques Used in Treating Acromioclavicular Dislocation in Patients Participating in Sports: A Systematic Review
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作者 Walter Hugo Brandão Nascimento Paulo Renan Matos Sucupira Cunha +3 位作者 João Pedro Pimentel Abreu Lethycia Pereira Rosa Kamilly Iêda Silva Veigas Rodrigo Martins Silva Caetano 《Open Journal of Orthopedics》 2024年第1期41-52,共12页
Introduction: The acromioclavicular joint is a superficial diarthrodial joint that surrounds the medial articular facet of the acromion and the distal portion of the clavicle. Due to its anatomy and biomechanics, it i... Introduction: The acromioclavicular joint is a superficial diarthrodial joint that surrounds the medial articular facet of the acromion and the distal portion of the clavicle. Due to its anatomy and biomechanics, it is highly susceptible to trauma and in young men who play contact sports, acromioclavicular dislocation is common. This article aimed to systematically review the literature and compare the surgical techniques used in the treatment of acromioclavicular dislocation in patients who practice sports. Methods: This systematic review was conducted according to the International Preferred Reporting Items for Systematic Review and Meta-Analyses guidelines. Eligible studies for this systematic review included articles in English or Spanish published between 2013 and 2023, which mention the occurrence of acromioclavicular dislocation during sports practices. Additionally, only studies that addressed the surgical treatment of acromion-clavicular dislocation and contained original data on the topic were included. Results: We found 144 eligible studies after searching the LILACS and PubMed databases. Based on the inclusion and exclusion criteria and the reviewers’ consensus, we selected four studies for the systematic review. 133 patients with AC joint displacement were evaluated. Mean Age: approximately 31.90 years. 81.92 of these injuries occurred during sports practice. Surgical Procedures Used: titanium plates fixation (49 patients), arthroscopy (24), single tunnel technique (30) and coracoid sling technique (30). The results of the visual analog scale and Constant-Murley scores varied between the techniques used. Twenty-two complications after surgical treatment were identified. Conclusion: A significant variability of operative techniques can be used in the surgical approach of acromioclavicular dislocation, such as arthroscopy, single tunnel, coracoid sling and titanium plates. Although it presented excellent functional results compared to the other three techniques evaluated by this review, using titanium plates is not the gold standard since other techniques not assessed by this work may be more effective. 展开更多
关键词 Acromioclavicular Joint Shoulder dislocation Surgical Procedure Postoperative Complications Postoperative Care
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A model for fast electron-driven high-density plasma in the double-cone ignition scheme
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作者 Zhong-Yi Chen Kai-Ge Zhao Ying-Jun Li 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第11期322-330,共9页
A model for fast electron-driven high-density plasma is proposed to describe the effect of injected fast electrons on the temperature and inner pressure of the plasma in the fast heating process of the double-cone ign... A model for fast electron-driven high-density plasma is proposed to describe the effect of injected fast electrons on the temperature and inner pressure of the plasma in the fast heating process of the double-cone ignition(DCI)scheme.Due to the collision of the two low-density plasmas,the density and volume of the high-density plasma vary.Therefore,the ignition temperature and energy requirement of the high-density plasma vary at different moments,and the required energy for hot electrons to heat the plasma also changes.In practical experiments,the energy input of hot electrons needs to be considered.To reduce the energy input of hot electrons,the optimal moment and the shortest time for injecting hot electrons with minimum energy are analyzed.In this paper,it is proposed to inject hot electrons for a short time to heat the high-density plasma to a relatively high temperature.Then,the alpha particles with the high heating rate and PdV work heat the plasma to the ignition temperature,further reducing the energy required to inject hot electrons.The study of the injection time of fast electrons can reduce the energy requirement of fast electrons for the high-density plasma and increase the probability of successful ignition of the high-density plasma. 展开更多
关键词 fast electrons the high-density plasma alpha particles double-cone ignition scheme the optimal moment the shortest time
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Low Stress TSV Arrays for High-Density Interconnection
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作者 Binbin Jiao Jingping Qiao +8 位作者 Shiqi Jia Ruiwen Liu Xueyong Wei Shichang Yun Yanmei Kong Yuxin Ye Xiangbin Du Lihang Yu Bo Cong 《Engineering》 SCIE EI CAS CSCD 2024年第7期201-208,共8页
In three-dimensional(3D)stacking,the thermal stress of through-silicon via(TSV)has a significant influence on chip performance and reliability,and this problem is exacerbated in high-density TSV arrays.In this study,a... In three-dimensional(3D)stacking,the thermal stress of through-silicon via(TSV)has a significant influence on chip performance and reliability,and this problem is exacerbated in high-density TSV arrays.In this study,a novel hollow tungsten TSV(W-TSV)is presented and developed.The hollow structure provides space for the release of thermal stress.Simulation results showed that the hollow W-TSV structure can release 60.3%of thermal stress within the top 2 lm from the surface,and thermal stress can be decreased to less than 20 MPa in the radial area of 3 lm.The ultra-high-density(1600 TSV∙mm2)TSV array with a size of 640×512,a pitch of 25 lm,and an aspect ratio of 20.3 was fabricated,and the test results demonstrated that the proposed TSV has excellent electrical and reliability performances.The average resistance of the TSV was 1.21 X.The leakage current was 643 pA and the breakdown voltage was greater than 100 V.The resistance change is less than 2%after 100 temperature cycles from40 to 125℃.Raman spectroscopy showed that the maximum stress on the wafer surface caused by the hollow W-TSV was 31.02 MPa,which means that there was no keep-out zone(KOZ)caused by the TSV array.These results indicate that this structure has great potential for applications in large-array photodetectors and 3D integrated circuits. 展开更多
关键词 Thermal stress Through-silicon via(TSV)high-density integration
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Quantification of grain boundary effects on the geometrically necessary dislocation density evolution and strain hardening of polycrystalline Mg-4Al using in situ tensile testing in scanning electron microscope and HR-EBSD
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作者 Eunji Song Mohsen Taheri Andani Amit Misra 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2024年第5期1815-1829,共15页
In situ tensile testing in a scanning electron microscope(SEM)in conjunction with high-resolution electron backscatter diffraction(HR-EBSD)under load was used to characterize the evolution of geometrically necessary d... In situ tensile testing in a scanning electron microscope(SEM)in conjunction with high-resolution electron backscatter diffraction(HR-EBSD)under load was used to characterize the evolution of geometrically necessary dislocation(GND)densities at individual grain boundaries as a function of applied strain in a polycrystalline Mg-4Al alloy.The increase in GND density was investigated at plastic strains of 0%,0.6%,2.2%,3.3% from the area including 76 grains and correlated with(i)geometric compatibility between slip systems across grain boundaries,and(ii)plastic incompatibility.We develop expressions for the grain boundary GND density evolution as a function of plastic strain and plastic incompatibility,from which uniaxial tensile stress-strain response of polycrystalline Mg-4Al are computed and compared with experimental measurement.The findings in this study contribute to understanding the mechanisms governing the strain hardening response of single-phase polycrystalline alloys and more reliable prediction of mechanical behaviors in diverse microstructures. 展开更多
关键词 Mg-Al alloys Grain boundaries Geometrically necessary dislocations Strain gradient plasticity HR-EBSD
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Traumatic Neglected Antero-Medial Knee Dislocation: Case Report
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作者 Souleymane Ouédraogo Massadiami Soulama +5 位作者 Abdourahmane Ouangré Ousmane Ouermi Sékou Sidibé Maik Telyann Tchitembo Malick Diallo Patrick Wendpouiré Hamed Dakouré 《Open Journal of Orthopedics》 2024年第9期421-426,共6页
Introduction: Neglected knee dislocation is an unusual injury, only a few cases have been reported in the literature. The circumstances of onset are generally an unnoticed knee dislocation in a polytrauma context or a... Introduction: Neglected knee dislocation is an unusual injury, only a few cases have been reported in the literature. The circumstances of onset are generally an unnoticed knee dislocation in a polytrauma context or a delay in consultation after the initial trauma. Presentation of case: We report the case of a 48-year-old female patient who sustained a knee injury during a domestic accident. Initial treatment was traditional and was followed for 3 years. She then consulted hospital, where a neglected knee dislocation was identified and treated with femorotibial arthrodesis. Discussion and conclusion: The treatment options of neglected knee dislocation include open reduction and fixation, arthrodesis and total knee arthroplasty. That the choice depends on the old unreduced of dislocation. 展开更多
关键词 Neglected Knee dislocation Tibiofemoral Arthrodesis Total Knee Arthroplasty
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Predictive value of intracranial high-density areas in neurological function
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作者 Zhi-Juan Lu Jin-Xing Lai +2 位作者 Jing-Ru Huang Shu-Hua Xie Zhao-Hui Lai 《World Journal of Psychiatry》 SCIE 2024年第7期1080-1086,共7页
BACKGROUND Intracranial high-density areas(HDAs)have attracted considerable attention for predicting clinical outcomes;however,whether HDAs predict worse neurological function and mental health remains controversial a... BACKGROUND Intracranial high-density areas(HDAs)have attracted considerable attention for predicting clinical outcomes;however,whether HDAs predict worse neurological function and mental health remains controversial and unclear,which requires further investigation.In this prospective study,96 patients with acute ischemic stroke(AIS)who accepted endovascular mechanical thrombectomy(EMT)were included.The enrolled patients underwent cranial computed tomography(CT)examination within 24 hours after EMT.Clinical data in terms of National Institutes of Health Stroke Scale(NIHSS),the 3-month modified Rankin Scale(mRS),self-rating depression scale(SDS),and self-rating anxiety scale(SAS)scores were collected and compared between patients with HDAs and non-HDAs and between patients with good and poor clinical prognosis.Compared to patients without HDAs,patients with HDAs presented severe neurological deficits(admission NIHSS score:18±3 vs 19±4),were more likely to have post-stroke disabilities(mRS<3:35%vs 62%),and suffered more severe depression(SDS score:58±16 vs 64±13)and anxiety disorder(SAS score:52±8 vs 59±10).Compared to patients with a good prognosis,patients with a poor prognosis presented severe neurological deficits(admission NIHSS score:17±4 vs 20±3),were more likely to have HDAs on CT images(64%vs 33%),and suffered more severe depression(SDS score:55±19 vs 65±11)and anxiety(SAS score:50±8 vs 58±12).Multivariate analysis revealed that HDAs were independent nega-tive prognostic factors.CONCLUSION In conclusion,HDAs on CT images predicted poor prognosis and severe depressive and anxiety symptoms in patients with AIS who underwent EMT. 展开更多
关键词 Acute ischemic stroke Endovascular mechanical thrombectomy high-density areas Depressive disorder Anxiety disorder
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