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The Roadmap of 2D Materials and Devices Toward Chips

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Nano-Micro Letters 2024年第6期16卷 343-438页

作者： Anhan Liu Xiaowei Zhang Ziyu Liu Yuning Li Xueyang Peng Xin Li Yue Qin Chen Hu Yanqing Qiu Han Jiang Yang Wang Yifan Li Jun Tang Jun Liu hao Guo Tao Deng Songang Peng He tian tian‑Ling Ren School of Integrated Circuits and Beijing National Research Center for Information Science and Technology(BNRist) Tsinghua UniversityBeijing 100049People’s Republic of China School of Microelectronics Fudan UniversityShanghai 200433People’s Republic of China State Key Laboratory of Dynamic Measurement Technology Shanxi Province Key Laboratory of Quantum Sensing and Precision MeasurementNorth University of ChinaTaiyuan 030051People’s Republic of China High‑Frequency High‑Voltage Device and Integrated Circuits R&D Center Institute of MicroelectronicsChinese Academy of SciencesBeijing 100029People’s Republic of China School of Electronic and Information Engineering Beijing Jiaotong UniversityBeijing 100044People’s Republic of China School of Integrated Circuits University of Chinese Academy of SciencesBeijing 100049People’s Republic of China IMECAS-HKUST-Joint Laboratory of Microelectronics Beijing 100029People’s Republic of China

Due to the constraints imposed by physical effects and performance degra certain limitations in sustaining the advancement of Moore’s ***-dimensional(2D)materials have emerged as highly promising candidates for the post-Moore era,offering significant potential in domains such as integrated circuits and next-generation ***,in this review,the progress of 2D semiconductors in process engineering and various electronic applications are summarized.A careful introduction of material synthesis,transistor engineering focused on device configuration,dielectric engineering,contact engineering,and material integration are given *** 2D transistors for certain electronic applications including digital and analog circuits,heterogeneous integration chips,and sensing circuits are ***,several promising applications(artificial intelligence chips and quantum chips)based on specific mechanism devices are ***,the challenges for 2D materials encountered in achieving circuit-level or system-level applications are analyzed,and potential development pathways or roadmaps are further speculated and outlooked.

关键词： Two-dimensional materials Roadmap Integrated circuits Post-Moore era

Measurement of the high energyγ-rays from heavy ion reactions usingČerenkov detector

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Nuclear Science and Techniques 2024年第2期35卷 123-130页

作者： Da-Wei Si Yan Zhou Sheng Xiao Zhi Qin Dong Guo Yu-hao Qin Yi-Jie Wang Bo-Yuan Zhang Bai-Ting tian Zhi-Gang Xiao Department of Physics Tsinghua UniversityBeijing 100084China

The energetic bremsstrahlung photons up to 100 MeV produced in heavy ion collisions can be used as a sensitive probe for short-range correlation in atomic nuclei. The energy of the γ-rays can be measured by collecting the Čerenkov light in the medium induced by the fast electrons generated in the Compton scattering or electromagnetic shower of the incident γray. Two types of detectors based on pure water and lead glass as sensitive materials were designed for this purpose. The γresponse and optical photon propagation in the detectors were simulated based on electromagnetic and optical processes in Geant4. The inherent energy resolutions of 0.022(4) + 0.51(2)∕E^(1/2)_(γ) for water and 0.0026(3) + 0.446(3)∕E^(1/2)_(γ) for lead glass were obtained. The geometry sizes of the lead glass and water were optimized to 30 cm × 30 cm × 30 cm and 60 cm × 60 cm ×120 cm, respectively, to detect high-energy γ-rays at 160 MeV. The Hough transform method was applied to reconstruct the direction of the incident γ-rays, providing the ability to experimentally distinguish the high-energy γ-rays produced in the reactions on the target from random background cosmic-ray muons.

关键词： Bremsstrahlungγ-rays Čerenkov Geant4 Energy resolution Direction reconstruction Hough transform

Research status and hotspots of tight junctions and colorectal cancer:A bibliometric and visualization analysis

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World Journal of Gastrointestinal Oncology 2024年第8期16卷 3705-3715页

作者： Hui-Min Li Yin Liu Meng-Di hao Xiao-Qing Liang Da-Jin Yuan wen-Bin Huang wen-Jie Li Lei Ding Department of Gastrointestinal Oncology Surgery Beijing Shijitan HospitalCapital Medical UniversityBeijing 100038China

BACKGROUND Colorectal cancer(CRC)is the third most common cancer worldwide and the second leading cause of cancer-related *** the past two decades,numerous researchers have provided important evidence regarding the role of tight junction(TJ)proteins in the occurrence and progression of *** causal relationship between the presence of specific TJ proteins and the development of CRC has also been *** the large number of publications in this field,a bibliometric study to review the current state of research and highlight the research trends and hotspots in this field has not yet been *** To analyze research on TJs and CRC,summarize the field’s history and current status,and predict future research *** We searched the Science Citation Index Expanded database for all literature on CRC and TJs from *** used bibliometrics to analyze the data of these papers,such as the authors,countries,institutions,and ***-authorship,co-citation,and co-occurrence analyses were the main methods of *** and VOSviewer were used to visualize the *** A total of 205 studies were ultimately *** number of publications on this topic has steadily increased since *** and the United States have made the largest contributions to this *** Research was the most prolific journal,publishing 8 articles,while the journal Oncogene had the highest average citation rate(68.33).Professor Dhawan P was the most prolific and cited author in this ***-occurrence analysis of keywords revealed that“tight junction protein expression”,“colorectal cancer”,“intestinal microbiota”,and“inflammatory bowel disease”had the highest frequency of occurrence,revealing the research hotspots and trends in this *** This bibliometric analysis evaluated the scope and trends of TJ proteins in CRC,providing valuable research perspectives and future directions for studying the connection between th

关键词： Colorectal cancer Tight junctions Bibliometric analysis Research trends Hot spots

Perforated gastric ulcer causing mediastinal emphysema: A case report

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World Journal of Clinical Cases 2024年第4期12卷 859-864页

作者： Zhi-Cheng Dai Xun-Wu Gui Feng-He Yang hao-Yuan Zhang wen-Feng Zhang Department of General Surgery Mengcheng County First People's HospitalMengcheng 233500Anhui ProvinceChina Department of Medical Imaging Mengcheng County First People's HospitalMengcheng 233500Anhui ProvinceChina

BACKGROUND Mediastinal emphysema is a condition in which air enters the mediastinum between the connective tissue spaces within the pleura for a variety of *** can be spontaneous or secondary to chest trauma,esophageal perforation,medi-cally induced factors,*** common symptoms are chest pain,tightness in the chest,and respiratory *** mediastinal emphysema patients have mild symptoms,but severe mediastinal emphysema can cause respiratory and circulatory failure,resulting in serious *** SUMMARY A 75-year-old man,living alone,presented with sudden onset of severe epigastric pain with chest tightness after drinking *** to the remoteness of his residence and lack of neighbors,the patient was found by his nephew and brought to the hospital the next morning after the disease *** tomography(CT)showed free gas in the abdominal cavity,mediastinal emph-ysema,and subcutaneous *** gastrointestinal angiography showed that the esophageal mucosa was intact and the gastric antrum was ***,we chose to perform open gastric perforation repair on the patient under thoracic epidural anesthesia combined with intravenous *** operative incision of the muscle layer of the patient's abdominal wall was made,and a large amount of subperitoneal gas was *** a continued incision of the peritoneum revealed the presence of a perforation of approx-imately 0.5 cm in the gastric antrum,which we repaired after pathological ***,the patient received high-flow oxygen and cough *** CT was performed on the first and sixth postoperative days,and the mediastinal and subcutaneous gas was gradually *** After gastric perforation,a large amount of free gas in the abdominal cavity can reach the mediastinum through the loose connective tissue at the esophageal hiatus of the diaphragm,and upper gastrointestinal angiography can clarify the site of *** pat

关键词： Gastric ulcer Perforated Mediastinal emphysema Case report

Comparing short-term outcomes of robot-assisted and conventional laparoscopic total mesorectal excision surgery for rectal cancer in elderly patients

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World Journal of Gastrointestinal Surgery 2024年第5期16卷 1271-1279页

作者： hao Yang Gang Yang wen-Ya Wu Fang Wang Xue-Quan Yao Xiao-Yu Wu The Affiliated Hospital of Nanjing University of Chinese Medicine Nanjing University of Chinese MedicineNanjing 210029Jiangsu ProvinceChina Department of Surgical Oncology The Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210029Jiangsu ProvinceChina

BACKGROUND Da Vinci Robotics-assisted total mesorectal excision(TME)surgery for rectal cancer is becoming more widely *** is no strong evidence that roboticassisted surgery and laparoscopic surgery have similar outcomes in elderly patients with TME for rectal *** To determine the improved oncological outcomes and short-term efficacy of robot-assisted surgery in elderly patients undergoing TME *** A retrospective study of the clinical pathology and follow-up of elderly patients who underwent TME surgery at the Department of Gastrointestinal Oncology at the Affiliated Hospital of Nanjing University of Chinese Medicine was conducted from March 2020 through September *** patients were divided into a robotassisted group(the R-TME group)and a laparoscopic group(the L-TME group),and the short-term efficacy of the two groups was *** There were 45 elderly patients(≥60 years)in the R-TME group and 50 elderly patients(≥60 years)in the L-TME *** were no differences in demographics,conversion rates,or postoperative complication *** L-TME group had a longer surgical time than the R-TME group[145(125,187.5)vs 180(148.75,206.25)min,P=0.005),and the first postoperative meal time in the L-TME group was longer than that in the R-TME(4 vs 3 d,P=0.048).Among the sex and body mass index(BMI)subgroups,the R-TME group had better out-comes than did the L-TME group in terms of operation time(P=0.042)and intraoperative assessment of bleeding(P=0.042).In the high BMI group,catheter removal occurred earlier in the R-TME group than in the L-TME group(3 vs 4 d,P=0.001),and autonomous voiding function was *** The curative effect and short-term efficacy of robot-assisted TME surgery for elderly patients with rectal cancer are similar to those of laparoscopic TME surgery;however,robotic-assisted surgery has better short-term outcomes for individuals with risk factors such as obesity and pelvic *** the learning

关键词： Robotic surgery Laparoscopy Rectal cancer Total mesorectal excision Elderly

Achieving strength-ductility synergy in novel paramagnetic Fe-based medium-entropy alloys through deep cryogenic deformation

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Rare Metals 2024年第9期43卷 4493-4507页

作者： Hu-wen Ma Yan-Chun Zhao Li Feng tian-Zeng Liu Zhi-Qi Yu Bo Jin Wang-Chun Duan Peter K.Liaw Dong Ma State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou University of TechnologyLanzhou 730050China wenzhou Pump and Valve Engineering Research Institute Lanzhou University of TechnologyWenzhou 325105China Iron and Steel Research Institute Jiuquan Iron and Steel CorporationJiayuguan 735100China Lanzhou Resources and Environment Voc-Tech University Lanzhou 730123China Department of Materials Science and Engineering The University of TennesseeKnoxvilleTN 37996-2200USA Neutron Science Center Songshan Lake Materials LaboratoryDongguan 523808China

Cryogenic pre-deformation treatment has been widely used to effectively improve the comprehensive mechanical properties of steels and novel ***,the dislocation evolution and phase transformation induced by different degrees of deep cryogenic deformation are not yet fully *** this study,the effects of multiple cryogenic pre-treatments on the mechanical properties and deformation mechanisms of a paramagnetic Fe_(63.3)Mn_(14-)Si_(9.1)Cr_(9.8)C_(3.8)medium-entropy alloy(MEA)were investigated,leading to the discovery of a pretreated MEA that exhibits exceptional mechanical properties,including a fracture strength of 3.0 GPa,plastic strain of 26.1%and work-hardening index of *** addition,X-ray diffraction(XRD)and transmission electron microscopy(TEM)analyses revealed that multiple cryogenic pre-deformation treatments significantly increased the dislocation density of the MEA(from 9×10^(15)to 4×10^(16)m^(-2)after three pretreatments),along with a transition in the dislocation type from predominantly edge dislocations to mixed dislocations(including screw-and edge-type dislocations).Notably,this pretreated MEA retained its paramagnetic properties(μ_(r)<1.0200)even after *** calculations showed that cryogenic pretreatment can significantly reduce the stacking fault energy of the MEA by a factor of approximately four(i.e.,from 9.7 to2.6 m J·m^(-2)),thereby activating the synergistic effects of transformation-induced plasticity,twinning-induced plasticity and dislocation strengthening *** synergistic effects lead to simultaneous strength and ductility enhancement of the MEA.

关键词： Deep cryogenic transformation Iron-based medium-entropy alloys Dislocation evolution Phase transformation Stacking fault energy

Chronic infectious unilateral giant thyroid cyst related to diabetes mellitus:A case report

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World Journal of Clinical Cases 2024年第8期12卷 1497-1503页

作者： Jiang-Bo Liu Shi-Lei Zhang wen-Long Jiang Hai-Kuan Sun hao-Chen Yang Department of Thyroid and Breast Surgery The First Affiliated HospitalCollege of Clinical MedicineHenan University of Science and TechnologyLuoyang 471000Henan ProvinceChina Clinical Medicine School The First Clinical CollegeChongqing Medical UniversityChongqing 400016China

BACKGROUND Patients rarely develop complicated infections in thyroid ***,we describe a patient with chronic infected unilateral giant thyroid cyst related to diabetes mellitus(DM).CASE SUMMARY A 66-year-old male was admitted due to an evident neck lump for 5 d after approximately 40 years of gradually progressive neck mass and 7 years of *** ultrasound and computed tomography scan showed a giant lump in the left thyroid gland *** was diagnosed with a large thyroid nodule complicated by tracheal dislocation and had surgical *** exploration revealed evident inflammatory edema and exudation between the left anterior neck muscles,the nodule and glandular ***,inflammatory lesions did not affect major neck ***,a left partial thyroidectomy was *** observation showed that the cystic thyroid mass consisted of extensive cystic wall calcification and was rich in massive rough sand-like calculi content and purulent *** pathology confirmed benign thyroid cyst with chronic *** The progression of this chronic infectious unilateral giant thyroid cyst may have been related to DM,and identifying blood vessels involvement can prevent serious complications during operation.

关键词： Thyroid nodule Infection Diabetes mellitus Surgery Case report

Potential therapeutic role of spermine via Rac1 in osteoporosis:Insights from zebrafish and mice

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Zoological Research 2024年第2期45卷 367-380页

作者： Rui-Xue Jiang Nan Hu Yu-Wei Deng Long-Wei Hu hao Gu Nan Luo Jin wen Xin-Quan Jiang Department of Prosthodontics Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200011China College of Stomatology Shanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai 200125China Department of Endodontics Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai Jiao Tong UniversityShanghai 200011China Department of Oral and Maxillofacial-Head and Neck Oncology Shanghai Ninth People’s HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200011China Department of Preventive Dentistry Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai Jiao Tong UniversityShanghai 200011China

Osteoporosis(OP)is a prevalent metabolic bone *** drug therapy is essential to prevent bone loss in osteoporotic patients,current treatments are limited by side effects and high costs,necessitating the development of more effective and safer targeted *** a zebrafish(Danio rerio)larval model of osteoporosis,we explored the influence of the metabolite spermine on bone *** showed that spermine exhibited dual activity in osteoporotic zebrafish larvae by increasing bone formation and decreasing bone *** not only demonstrated excellent biosafety but also mitigated prednisolone-induced embryonic neurotoxicity and ***,spermine showcased protective attributes in the nervous systems of both zebrafish embryos and *** the molecular level,Rac1 was identified as playing a pivotal role in mediating the antiosteoporotic effects of spermine,with P53 potentially acting downstream of *** findings were confirmed using mouse(Mus musculus)models,in which spermine not only ameliorated osteoporosis but also promoted bone formation and mineralization under healthy conditions,suggesting strong potential as a bonestrengthening *** study underscores the beneficial role of spermine in osteoporotic bone homeostasis and skeletal system development,highlighting pivotal molecular *** their efficacy and safety,human endogenous metabolites like spermine are promising candidates for new anti-osteoporotic drug development and daily bone-fortifying agents.

关键词： Osteoporosis Spermine Rac1 Zebrafish Mice

Multiple factors interact in editing of PPR-E+-targeted sites in maize mitochondria and plastids

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Plant Communications 2024年第5期5卷 225-240页

作者： Yong Wang Zi-Qin Huang Kai-Di tian hao Li Chunhui Xu Bingyujie Xia Bao-Cai Tan Key Laboratory of Plant Development and Environmental Adaptation Biology Ministry of EducationSchool of Life SciencesShandong UniversityQingdao 266237China

RNA cytidine-to-uridine editing is essential for plant organellar gene *** repeat(PPR)-E+proteins have been proposed to bind to target sites and recruit the cytidine deaminase AtDYW2,facilitated by *** we analyze the function of ZmNUWA,ZmDYW2A,and ZmDYW2B and their re-lationships with other editing factors in *** zmdyw2a and zmdyw2b single mutants are normal,but the zmdyw2a::zmdyw2b and zmnuwa mutants are severely arrested in seed ***,ZmDYW2A,and ZmDYW2B are dual localized in mitochondria and *** of ZmNUWA decreases the editing at 99 mitochondrial sites and 8 plastid ***,loss of ZmDYW2A:ZmDYW2B affects almost the same set of sites targeted by PPR-E+*** interacts with ZmDYW2A and ZmDYW2B,suggesting that ZmNUWA recruits ZmDYW2A/2B in the editing of PPR-E+-targeted sites in *** protein interaction analyses show that ZmNUWA and ZmDYW2A/2B interact with ZmMORF1,ZmMORF8,ZmMORF2,and ZmMORF9 and that ZmOZ1 interacts with ZmORRM1,ZmDYW2A,ZmDYW2B,ZmMORF8,and *** results suggest that the maize mitochondrial PPR-E+editosome contains PPR-E+,ZmDYW2A/2B,ZmNUWA,and ZmMORF1/8,whereas the plastid PPR-E+editosome is composed of PPR-E+,ZmDYW2A/2B,ZmNUWA,ZmMORF2/8/9,ZmORRM1,and ZmOZ1.

关键词： maize plant organelles RNA editing ZmNUWA ZmDYW2A/2B