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Pulp health and calcific healing of a complicated crown–root fracture with additional root fracture in a maxillary incisor: A case report

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world Journal of Clinical Cases 2025年第3期13卷 42-49页

作者： Na Li yue-yue Ren Ying Tang Qi Yang Tian-Tian Meng Song Li Jing Zhang Stomatological Hospital and College Anhui Medical UniversityHefei 230032Anhui ProvinceChina Department of Endodontics The Affiliated Stomatological Hospital of Xuzhou Medical UniversityXuzhou 221000Jiangsu ProvinceChina

BACKGROUND Complicated crown–root fracture (CRF) involves severe injury to the crown, root,and pulp, and may be accompanied by multiple root fractures. The loss of a toothhas lifelong consequences for children and teenagers, but the maintenance of pulphealth and the calcific healing of multiple root fractures are rarely reported in *** SUMMARY This case reports healing of a permanent tooth with complicated crown–root andadditional root fractures, in w.ich pulp health was maintained. A 10-year-old girlfell and fractured the root of her maxillary left central incisor at the cervical *** the coronal fragment was repositioned, the tooth was splinted until thetooth was no longer mobile, 2 years later. Eight years after treatment, the toothhas remained asymptomatic with vital pulp and localized gingival ***-beam computed tomography revealed not only calcified healing of the CRFbut also spontaneous healing in an additional undiagnosed root fracture. Thefracture line on the enamel could not be healed by hard tissue and formed agroove in the cervical crown. it was speculated that the groove was related to thelocalized gingival *** This case provides a clinical perspective of the treatment of a tooth with acomplicated CRF and an additional root fracture.

关键词： Complicated crown-root fracture Multiple root fracture Spontaneous healing Cone-beam computed tomography Long-term follow-up Case report

Arctic sea-ice extent: No record minimum in 2023 or recent years

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 52-55页

作者： Ola M.Johannessen Tor i.Olaussen Nansen Scientific Society BergenNorway Nansen Environmental and Remote Sensing Center BergenNorway

Arctic sea-ice extent reaches its minimum each year in September. On 11 September 2023 the minimum was 4.969 million square kilometers(***^(2)). This was not a record low, w.ich occurred in 2012, when the minimum was 4.175 ***^(2), 0.794 ***^(2) less than the minimum in 2023. However, the ice extent had decreased by 0.432 ***^(2) compared with 2022. Nevertheless, the summer melting in 2023 was remarkably less than expected when considering the strong heat waves in the atmosphere and ocean, with record temperatures set around the world. in general, there is a high correlation between the long-term decrease in sea-ice extent and the increasing CO_(2) in the atmosphere, where the increase of CO_(2) in recent decades explains about 80% of the decrease in sea ice in September, w.ile the remainder is caused by natural variability.

关键词： Sea ice Arctic Minimum ice Climate

Coarse to Fine: The Role of Severe Plastic Deformation in Advancing Titanium-Based Medical implants - A Comprehensive Review

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Journal of wuhan University of Technology(Materials Science) 2025年第1期40卷 295-306页

作者： Dragana R Mihajlović Bojan i Međo ivana Lj Cvijović-Alagić Veljko R Djokić Faculty of Technology and Metallurgy University of BelgradeKarnegijeva 411120 BelgradeSerbia Vinča institute of Nuclear Sci-ences-National institute of the Republic of Serbia University of Belgrade11001BeogradSerbia innovation Centre of the Faculty of Technology and Metallurgy Karnegijeva 411120 BelgradeSerbia

This paper describes severe plastic deformation(SPD)procedures,w.ich are utilized to form an ultrafine-grained structure in metallic *** the SPD process,a solid material sample is subjected to very high loads without a significant change in sample *** the present work,the high-pressure torsion(HPT)process,as one of the SPD techniques,w.ich achieves a high degree of deformation and ensures refinement of the microstructure,will be discussed in more *** that grain size control is accepted as a method to obtain materials with desired characteristics,an overview of the properties of ultrafine-grained titanium-based biomaterials to be used in medicine is ***,particular attention is dedicated to the influences of HPT process parameters,primarily hydrostatic pressure,and number of revolutions during torsion,on the grain size and physical and mechanical characteristics(modulus of elasticity,microhardness,and tensile properties),corrosion resistance,and biocompatibility of the titanium-based biomaterials.A review of the literature indicates that titanium-based materials obtained by the SPD process show.improved mechanical and physical properties without losing biocompatibility and corrosion resistance,w.ich suggests that these methods of obtaining implants are something that should be further developed in the future.

关键词： high-pressure torsion process ultrafine-grained titanium-based materials electrochemical anodization physical properties mechanical properties

Multisensory mechanisms of gait and balance in Parkinson’s disease:an integrative review

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Neural Regeneration Research 2025年第1期20卷 82-92页

作者： Stiven Roytman Rebecca Paalanen Giulia Carli Uros Marusic Prabesh Kanel Teus van Laar Nico i.Bohnen Department of Radiology University of MichiganAnn ArborMIUSA Department of Neurology University of MichiganAnn ArborMIUSA Morris K.Udall Center of Excellence for Parkinson’s Disease Research University of MichiganAnn ArborMIUSA institute for Kinesiology Research Science and Research Centre KoperKoperSlovenia Department of Health Sciences Alma Mater Europaea–ECMMariborSlovenia Parkinson’s Foundation Research Center of Excellence University of MichiganAnn ArborMIUSA Department of Neurology University of GroningenUniversity Medical Center GroningenGroningenThe Netherlands Neurology Service and GRECC VA Ann Arbor Healthcare SystemAnn ArborMIUSA

Understanding the neural underpinning of human gait and balance is one of the most pertinent challenges for 21st-century translational neuroscience due to the profound impact that falls and mobility disturbances have on our aging *** and gait control does not happen automatically,as previously believed,but rather requires continuous involvement of central nervous *** effectively exert control over the body,the brain must integrate multiple streams of sensory information,including visual,vestibular,and somatosensory *** mechanisms w.ich underpin the integration of these multisensory signals are the principal topic of the present *** multisensory integration theories focus on how failure of cognitive processes thought to be involved in multisensory integration leads to falls in older *** emphasis,however,has been placed on specific contributions of individual sensory modalities to multisensory integration processes and cross-modal interactions that occur between the sensory modalities in relation to gait and *** the present work,we review the contributions of somatosensory,visual,and vestibular modalities,along with their multisensory intersections to gait and balance in older adults and patients with Parkinson’s *** also review evidence of vestibular contributions to multisensory temporal binding windows,previously shown to be highly pertinent to fall risk in older ***,we relate multisensory vestibular mechanisms to potential neural substrates,both at the level of neurobiology(concerning positron emission tomography imaging)and at the level of electrophysiology(concerning electroencephalography).we hope that this integrative review,drawing influence across multiple subdisciplines of neuroscience,paves the way for novel research directions and therapeutic neuromodulatory approaches,to improve the lives of older adults and patients with neurodegenerative diseases.

关键词： aging balance encephalography functional magnetic resonance imaging gait multisensory integration Parkinson’s disease positron emission tomography somatosensory vestibular visual

Surface modification of ammonium nitrate by coating with surfactant materials to reduce hygroscopicity

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Defence Technology（防务技术） 2019年第4期15卷 615-620页

作者： Baha i. Elzaki yue Jun Zhang School of Chemical Engineering Nanjing University of Science and Technology Nanjing 210094 Jiangsu China Department of Chemical Engineering College of Engineering Karary University Omdurman 12304 Sudan

Ammonium nitrate(AN)is promising oxidizer in green *** this work,the physical coating method was improved to modify the surface of ammonium nitrate particles with different surfactant materials to reduce ***,stearic acid,stearyl alcohol,palmic acid,lauric acid,stearsmide,tetradecylamine,dodecylamine,and tetradecanol were used as coating surfactant *** hygroscopicity was tested for ammonium nitrate with and without *** transform infrared(FTiR)and scanning electron microscopy(SEM)were used to characterize the surface of coated and uncoated ammonium *** mass ratio of coating layer and decline of absorption rate of ammonium nitrate coated by cetylalcohol were 1.00%,and 28.40%,*** results indicate that coating with cetylalcohol surfactant have advantages over the other surfactants in term of low mass ratio of coating layer,and high decline of moisture absorption ***,cetylalcohol would be a promising coating surfactant material for ammonium *** idea and approach presented in this study have potential to made hydrophobic layer on the surface of particles to reduce hygroscopicity of AN,and also help the researcher to improving anti-hygroscopicity of ammonium salts.

关键词： Ammonium nitrate(AN) Coating Hygroscopicity Modification surface Surfactant

Stepwise assembly to construct stable copper(i) cluster-based circularly polarized luminescent MOFs

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Science China Chemistry 2025年

作者： Jing-wen Xie Meng-Ting wang Yan Jin Si Li Jian-Hua Qin Shuang-Quan Zang Tomas C.w.Mak College of Chemistry Henan Key Laboratory of Crystalline Molecular Functional Materials Zhengzhou University College of Chemistry and Chemical Engineering Luoyang Normal University Department of Chemistry The Chinese University of Hong Kong

Circularly polarized luminescence （CPL） materials have been extensively studied in recent years owing to their widespread applications in 3D display,optical storage,optical anti-counterfeiting,and biological imaging,***（i） clusters have emerged as a promising candidate for CPL materials,driven by their cost-effectiveness,superior luminescent properties,precise structure,and low ***,the poor environmental stability of copper（i） clusters renders their synthesis and preservation challenging,thereby significantly impeding their ***,we have designed and synthesised a chiral double-coordinated ligand in order to construct copper（i） cluster nodes that can be further *** anticipated,by utilizing stepwise assembly strategy,a Cu4cluster node co-modified by chiral alkynyl ligands and triphenylphosphine was further assembled with Cd2+ions to obtain 2D layers structure,L/*** L/D-Cu4-Cd exhibits excellent stability and optical properties,including bright yellow emission,solvent-responsive luminescence,and CPL activity with a maximum glumup to 2.0×10-3,w.ich shows potential applications in the wLED and *** interestingly,the material also exhibits deflection ability towards different wavelengths of linearly polarized light,showing certain potential in the preparation of circular polarizer.

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Role of nutrition in diabetes mellitus and infections

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world Journal of Clinical Cases 2025年第3期13卷 1-8页

作者： Xue-Lu Yu Li-Yun Zhou Xiao Huang Xin-yue Li Ming-Ke wang Ji-Shun Yang Naval Medical Center of PLA Naval Medical UniversityShanghai 200052China

in this editorial,we have commented on the article that has been published in the recent issue of world Journal of Clinical *** authors have described a case of unilateral thyroid cyst and have opined that the acute onset of infection may be linked to diabetes mellitus(DM).we have focused on the role of nutrition in the association between DM and *** with DM are at a high risk of infection,w.ich could also be attributed to nutrition-related *** interventions for patients with diabetes are mainly based on a low-calorie diet,w.ich can be achieved by adhering to a low-carbohydrate ***,dietary fiber supplementation is recommended to maintain the diversity of the gut ***,high-quality protein can prevent the increased risk of infection due to *** of vitamins C,vitamins A,vitamins D,and folic acid improves blood sugar control and facilitates immune *** deficiencies augment the risk of infection,but the relationship with diabetes is mostly U-shaped and a good intake should be maintained.

关键词： Diabetes mellitus infection Macronutrients Vitamins Minerals

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核因子i-C调控人根尖牙乳头干细胞的分化

中国组织工程研究 2025年第31期29卷 6667-6673页

作者：吴越朱永娜葛翔刘樊何泽禹刘茜蚌埠医科大学口腔医学院蚌埠医科大学第二附属医院口腔科安徽省蚌埠市233000

背景:体外过表达核因子i-C基因可促进人根尖牙乳头干细胞的分化,wnt/β-catenin信号通路的激活也可促进人根尖牙乳头干细胞的分化,而且核因子i-C对间充质干细胞中wnt/β-catenin通路具有调节作用。然而,核因子i-C能否通过激活人根尖牙... 详细信息

背景:体外过表达核因子i-C基因可促进人根尖牙乳头干细胞的分化,wnt/β-catenin信号通路的激活也可促进人根尖牙乳头干细胞的分化,而且核因子i-C对间充质干细胞中wnt/β-catenin通路具有调节作用。然而,核因子i-C能否通过激活人根尖牙乳头干细胞中wnt/β-catenin通路进而影响细胞分化,目前尚未见报道。目的:探讨核因子i-C通过wnt/β-Catenin信号通路调控人根尖牙乳头干细胞分化的作用。方法:玻片覆盖组织块法培养人根尖牙乳头干细胞,慢病毒转染过表达核因子i-C基因。①设置对照组、空载体组和过表达核因子i-C组,western blot检测β-Catenin、LRP5和TCF7L2的表达。②设置对照组、空载体组、过表达核因子i-C组和过表达核因子i-C+DKK-1(wnt通路抑制剂)组,细胞成骨诱导7 d后进行碱性磷酸酶染色及活性定量,细胞成骨诱导14 d后qPCR和western blot检测Runt相关转录因子2、牙本质涎磷蛋白、骨钙素mRNA及蛋白的表达,茜素红染色观察矿化结节形成情况。结果与结论:①与对照组、空载体组相比,过表达核因子i-C组人根尖牙乳头干细胞中wnt/β-Catenin通路相关蛋白β-Catenin、LRP5、TCF7L2表达显著升高(Pi-C组人根尖牙乳头干细胞中碱性磷酸酶活性显著升高(Pi-C组相比,过表达核因子i-C+DKK-1组人根尖牙乳头干细胞中碱性磷酸酶活性、Runt相关转录因子2、牙本质涎磷蛋白、骨钙素mRNA及蛋白表达显著下降(Pi-C能够激活人根尖牙乳头干细胞中wnt/β-catenin信号通路,介导人根尖牙乳头干细胞的成骨/成牙分化。

关键词：人根尖牙乳头干细胞核因子i-C wnt 信号通路分化成骨 DKK-1 工程化干细胞

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Velocity forecasts using a combined deep learning model in hybrid electric vehicles with V2V and V2i communication

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Science China(Technological Sciences) 2020年第1期63卷 55-64页

作者： PEi JiaZheng SU YiXin ZHANG DanHong Qi yue LENG Zhiwen School of Automation Wuhan University of TechnologyWuhan 430070China China Ship Development and Design Center Wuhan 430064China

Vehicle velocity forecast is an important clue in improving the performance of energy management in hybrid electric vehicles(HEV). This paper presents a new combined model for predicting vehicle’s velocity time series. The main features of the model are to combine the feature extraction capability of deep restricted Boltzmann machines(DBM) and sequence pattern predicting capability of bidirectional long short-term memory(BLSTM). Hence, the model is named as DBMBLSTM. in addition, the DRMBLSTM model utilizes the vehicle driving information and roadside infrastructure information provided respectively through vehicle-to-vehicle(V2V) and vehicle-to-infrastructure(V2i) communication channels to predict vehicle velocity at various length of prediction horizon. Furthermore, the predictions results of this study are compared with the state of the art of vehicle velocity forecasts. The root mean square error(RMSE) is used as an evaluation criteria of predictions accuracy. Finally,these compared prediction model are applied in model predictive control(MPC) energy management strategy for the verifications of fuel economy improvement of a HEV. Simulation results confirm that the proposed combined deep learning model performs better than other five prediction methods. Therefore, it is a means of arriving at a reliable forecast model for HEV.

关键词： vehicle velocity prediction restricted Boltzmann machines deep belief network long short-term memory,model predictive control