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On the Blaschke Isoparametric Hypersurfaces in the Unit Sphere

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Acta Mathematica Sinica,English Series 2009年第4期25卷 657-678页

作者： Xing Xiao LI feng yun zhang Department of Mathematics. He'nan Normal University Xinxiang 453007 P. R. China

Given an immersed submanifold x ： M^M → S^n in the unit sphere S^n without umbilics, a Blaschke eigenvalue of x is by definition an eigenvalue of the Blaschke tensor of x. x is called Blaschke isoparametric if its Mobius form vanishes identically and all of its Blaschke eigenvalues are constant. Then the classification of Blaschke isoparametric hypersurfaces is natural and interesting in the MSbius geometry of submanifolds. When n = 4, the corresponding classification theorem was given by the authors. In this paper, we are able to complete the corresponding classification for n = 5. In particular, we shall prove that all the Blaschke isoparametric hypersurfaces in S^5 with more than two distinct Blaschke eigenvalues are necessarily Mobius isoparametric.

关键词： Mobius form Blaschke eigenvalues Blaschke tensor Mobius metric Mobius second fundamental form

Congenital intestinal malrotation with gastric wall defects causing extensive gut necrosis and short gut syndrome:A case report

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World Journal of Clinical Cases 2022年第9期10卷 2851-2857页

作者： Yuan Wang Ye Gu Di Ma Wan-Xu Guo yun-feng zhang Department of Neonatology The Second Hospital of Jilin UniversityChangchun 130041Jilin ProvinceChina Department of Pediatric Surgery The Second Hospital of Jilin UniversityChangchun 130041Jilin ProvinceChina Children’s Disease Diagnosis and Treatment Center The Second Hospital of Jilin UniversityChangchun 130041Jilin ProvinceChina

BACKGROUND Congenital intestinal malrotation(CIM)is a common malformation in *** diagnosis and surgical intervention can improve the *** combined with congenital gastric wall defect is a potentially fatal *** present a severe case of CIM with gastric wall defect causing extensive gut necrosis and short gut *** three operations,the neonate survived and subsequently showed normal growth and development during *** SUMMARY A male neonate(age:4 d)was hospitalized due to bloody stools and vomiting for 2 d,and abdominal distention for 1 *** exploratory laparotomy revealed black purplish discoloration of the bowel *** alignment was abnormal with congestion and dilatation of the entire intestine,and clockwise mesentery volvulus(720°).The posterior wall of the gastric body near the greater curvature showed a defect in the muscularis layer(approximately 5.5 cm),and a circular perforation(approximately 3 cm diameter)at the center of this ***’s procedure was performed and gastric wall defect was *** operation performed 53 d after birth revealed extensive adherence of small intestine and peritoneum,and adhesion angulated between many small intestinal *** performed intestinal adhesiolysis,resection of necrotic intestine,and small bowel *** This case highlights that prolonged medical treatment may help improve intestinal salvage after surgical removal of necrotic intestines,and improve patient prognosis.

关键词： Congenital intestinal malrotation Gastric wall defects Extensive intestine necrosis Short gut syndrome Neonate Case report

Value of Adjuvant Radiotherapy for Thymoma with Myasthenia Gravis after Extended Thymectomy

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Chinese Medical Journal 2018年第8期131卷 927-932页

作者： Chang-feng Lu Lei YU yun Jing yun-feng zhang Ji Ke Department of Neurology Beijing Tongren Hospital Capital Medical University Beijing 100730 China Department of Thoracic Surgery Beijing Tongren Hospital Capital Medical University Beijing 100730 China

Background：The co-existence of myasthenia gravis （MG） and thymoma makes the surgical treatment more complicated and adjuvant radiation more controversial. The aim of this study was to investigate adjuvant radiotherapy for thymoma with MG after extended ***：A total of 181 patients with both MG and thymoma were recruited between 2003 and 2014 at Tongren Hospital, China. Among all the patients, 157 patients received radiation therapy after surgery （Group A）; whereas the other 24 patients did not receive radiation therapy （Group B）. According to the time that patients started mediastinal radiation therapy, we subdivided the 157 patients in Group A into subgroups （1-month subgroup, n = 98; 2-month subgroup, n = 7; and 3-month subgroup, n = 52）. We then compared the effect of the mediastinal radiation therapy across these different groups using the survival rate, the rate of postoperative myasthenic crisis, and the complete stable remission （CSR） rate as the primary ***：There was a significant difference in the occurrence of postoperative myasthenic crisis between 1-month subgroup and Group B （χ2 = 4.631, P = 0.031）. The rates of reaching CSR were 32.6% in 1-month subgroup, 25% in 3-month subgroup, and 22.7% in Group B, respectively. The overall survival rates of 1-month subgroup, 3-month subgroup, and Group B were 88.8%, 83.3%, and 77.3%, respectively. Analysis on the Kaplan-Meier survival curves demonstrated that within 8 years after surgery, there was no significant difference in aspects of overall survival and disease-free survival between 1-month subgroup and Group B, and between 3-month subgroup and Group B; over 8 years after surgery, the disease-free survival rates in 1-month subgroup, 3-month subgroup and Group B were 79.4%, 70.6%, and 55.3%, ***：Adjuvant radiation within 1 month after extended thymectomy may be helpful in controlling postoperative MG, such as decreasing the possibility of postoperative myasthenic

关键词： Myasthenia Gravis Prognosis Radiotherapy Thymectomy Thymoma

Device physics and design of FD-SOI JLFET with step-gate-oxide structure to suppress GIDL effect

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Chinese Physics B 2021年第4期30卷 497-501页

作者： Bin Wang Xin-Long Shi yun-feng zhang Yi Chen Hui-Yong Hu Li-Ming Wang State Key Discipline Laboratory of Wide Bandgap Semiconductor Technology School of MicroelectronicsXidian UniversityXi'an 710071China Mailbox 150 BaoJi 721000China

A novel n-type junctionless field-effect transistor(JLFET) with a step-gate-oxide(SGO) structure is proposed to suppress the gate-induced drain leakage(GIDL) effect and off-state current I_(off).Introducing a 6-nm-thick tunnel-gateoxide and maintaining 3-nm-thick control-gate-oxide,lateral band-to-band tunneling(L-BTBT) width is enlarged and its tunneling probability is reduced at the channel-drain surface,leading the off-state current I_(off) to decrease ***,the thicker tunnel-gate-oxide can reduce the influence on the total gate capacitance of JLFET,which could alleviate the capacitive load of the transistor in the circuit *** simulation shows that I_(off) of the new optimized JLFET reduced significantly with little impaction on its on-state current Ion and threshold voltage V_(TH) becoming less,thus showing an improved I_(on)/I_(off) ratio(5×10^(4)) and subthreshold swing(84 mV/dec),compared with the scenario of the normal *** influence of the thickness and length of SGO structure on the performance of JLFET are discussed in detail,which could provide useful instruction for the device design.

关键词： junctionless field-effect transistor(FET) gate-induced drain leakage(GIDL) step-gate-oxide offstate current

Epidemiological characteristics of childhood obesity in eastern China, 2017-2019

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World Journal of Pediatrics 2019年第4期15卷 412-414页

作者： Xi-Yan zhang Wen-Yi Yang Jie Yang Yan Wang Yao Xiang Liu-Wei Gao feng-yun zhang Yong-Lin Zhou Department of Child and Adolescent Health Promotion Jiangsu Provincial Center for Disease Control and PreventionNo.172 Jiangsu RoadNanjing 210009China Public Health Research Institute of Jiangsu Province NanjingChina School of Public Health Southeast UniversityNanjingChina

Childhood obesity has becoming an increasing concern in many countries including China [1-3].Located in the eastern China,Jiangsu Province is one of the developed regions in China and is also facing this problem.

关键词： Childhood obesity Epidemiology Jiangsu province Risk factors

Preterm neonate with a large congenital hemangioma on maxillofacial site causing thrombocytopenia and heart failure:A case report

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World Journal of Clinical Cases 2022年第17期10卷 5756-5763页

作者： Neng Ren Chun-Shun Jin Xiao-Qi Zhao Wen-Hui Gao Yu-Xian Gao Yuan Wang yun-feng zhang Department of Neonatology The Second Hospital of Jilin UniversityChangchun 130041Jilin ProvinceChina Department of Otolaryngology Head and Neck SurgeryThe Second Affiliated Hospital of Jilin UniversityChangchun 130041Jilin ProvinceChina Department of Pediatrics The Second Hospital of Jilin UniversityChangchun 130041Jilin ProvinceChina

BACKGROUND We report a rare case of a large congenital hemangioma(CH)in the maxillofacial region in a female neonate that caused thrombocytopenia and heart *** close multidisciplinary collaboration,the congenital hemangioma was successfully resected with good *** SUMMARY The patient was delivered at gestational age of 36 wk by cesarean section due to cephalopelvic disproportion and lack of onset of labor(birth weight:2630 g).A right-sided facial tumor was detected in the fetus during routine antenatal ultrasound examination of the mother at 32 wk of *** examination revealed a 7 cm×7 cm×3 cm hard,dull purple-colored mass on the right maxillofacial *** mass was tense and had prominent surface *** investigations revealed reduced hemoglobin and platelet count,and increased activated partial thromboplastin time,prothrombin time,and thrombin *** normalized ratio,fibrin degradation products,and D-Dimer levels were significantly *** showed increased alpha angle,mean amplitude,and the clot formation ***-stimulating hormone level was significantly *** patient was administered prednisone,propranolol,euthyrox,vitamin K1,milrinone,and *** operation,cefepime was administered for anti-infection and propranolol was prescribed at *** We report a rare case of CH in the right maxillofacial region causing thrombocytopenia and heart failure.

关键词： Congenital hemangioma Maxillofacial site Thrombocytopenia Heart failure Case report

Neural substrates for regulating self-grooming behavior in rodents

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第10期25卷 841-856页

作者： Guanqing LI Chanyi LU Miaomiao YIN Peng WANG Pengbo zhang Jialiang WU Wenqiang WANG Ding WANG Mengyue WANG Jiahan LIU Xinghan LIN Jian-Xu zhang Zhenshan WANG Yiqun YU yun-feng zhang State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100101China School of Life Sciences Hebei UniversityBaoding 071002China State Key Laboratory of Molecular Development Biology Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Department of Rehabilitation Medicine Tianjin Huanhu HospitalTianjin 300350China Medical Center for Human Reproduction Beijing Chao-Yang HospitalCapital Medical UniversityBeijing 100101China Department of Gastrointestinal Surgery the People’s Hospital of Zhaoyuan CityZhaoyuan 265400China School of Life Sciences Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230026China Department of Otolaryngology EyeEarNose&Throat HospitalFudan UniversityShanghai 200031China Ear Nose&Throat InstituteEyeEarNose&Throat HospitalFudan UniversityShanghai 200031China Clinical and Research Center for Olfactory Disorders EyeEarNose&Throat HospitalFudan UniversityShanghai 200031China

Grooming,as an evolutionarily conserved repetitive behavior,is common in various animals,including humans,and serves essential functions including,but not limited to,hygiene maintenance,thermoregulation,de-arousal,stress reduction,and social *** rodents,grooming involves a patterned and sequenced structure,known as the syntactic chain with four phases that comprise repeated stereotyped movements happening in a cephalocaudal progression style,beginning from the nose to the face,to the head,and finally ending with body *** context-dependent occurrence of grooming behavior indicates its adaptive *** review briefly summarizes the neural substrates responsible for rodent grooming behavior and explores its relevance in rodent models of neuropsychiatric disorders and neurodegenerative diseases with aberrant grooming *** further emphasize the utility of rodent grooming as a reliable measure of repetitive behavior in neuropsychiatric models,holding promise for translational ***,we mainly focus on rodent ***(grooming being applied on one animal by its conspecifics via licking or carefully nibbling)and heterogrooming(a form of grooming behavior directing towards another animal,which occurs in other contexts,such as maternal,sexual,aggressive,or social behaviors)are not covered due to space constraints.

关键词： Grooming Repetitive behavior Syntactic chain Cephalocaudal progression Neuropsychiatric disorders

Study on Site-specific Nutrient Management in Cotton Field

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Agricultural Sciences in China 2001年第1期 102-106页

作者： YANG Li-ping JIANG Cheng JIN Ji-yun zhang feng-ming Key Laboratory of Plant Nutrition Research of Ministry of Agriculture Soil and Fertilizer Institute of Chinese Academy of Agricultural Sciences Beijing 100081 Key Laboratory of Plant Nutrition Research of Ministry of Agriculture Soil and Fertilizer Institute of Chinese Academy of Agricultural Sciences Beijing 100081 Key Laboratory of Plant Nutrition Research of Ministry of Agriculture Soil and Fertilizer Institute of Chinese Academy of Agricultural Sciences Beijing 100081 Handan Agricultural Technology Extension Station Handan Hebei Province 056802

The study on the characteristics of spatial variability of soil nutrients and fertilizer recommendations in cotton field under certain conditions of agricultural management was conducted with GIS and systematic approach for soil nutrient constrains. The results showed that of the spatial variability of soil nutrient was greatly related to the management condition of previous crops. Grid sampling and variable rate application technology (VRAT) were the tools that would hopefully increase fertilizer efficiency. The fertilizers were applied where they were needed and at proper rate. Balance fertilization demonstration showed that fertilizer recommendations according to the available nutrient level in soil could decrease fertilizer cost with 657.4 yuan / ha and increase seed cotton yield by 19.8%. A net profit of the balanced fertilization was 5314.9 yuan / ha higher than that of local fertilization practice.

关键词： Cotton field Site-specific nutrient management GIS Fertilizer recommendations Variable rate fertilization

A Short Glance at the Neural Circuitry Mechanism Underlying Depression

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World Journal of Neuroscience 2016年第3期6卷 184-192页

作者： Chanyi Lu Qiqin Li Yaoyao Li yun Wang yun-feng zhang School of Ophthalmology and Optometry Eye Hospital Wenzhou Medical University Wenzhou China State Key Laboratory Cultivation Base and Key Laboratory of Vision Science Ministry of Health of the People’s Republic of China Zhejiang Provincial Key Laboratory of Ophthalmology and Optometry Wenzhou China Lu’an People’s Hospital Lu’an China Allen Institute for Brain Science Seattle WA USA

Depression leads to a large social burden because of its substantial impairment and disability in everyday activities. The prevalence and considerable impact of this disorder call for a better understanding of its pathophysiology to improve the diagnosis, treatment and prevention. Though productive animal models and pathophysiological theories have been documented, it is still very far to uncover the complex array of symptoms caused by depression. Moreover, the neural circuitry mechanism underlying behavioral changes in some depression-like behavior animals is still limited. Changes in the neural circuitry of amygdala, dorsal raphe nucleus, ventral tegmental area, hippocampus, locus coeruleus and nucleus accumbens are related to depression. However, the interactions between individual neural circuitry of different brain areas, have not yet been fully elucidated. The purpose of the present review is to examine and summarize the current evidence for the pathophysiological mechanism of depression, with a focus on the neural circuitry, and emphasize the necessity and importance of integrating individual neural circuitry in different brain regions to understand depression.

关键词： Pathophysiology Depression-Like Behavior Neural Circuitry