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A New Species of Genus Microhyla(Amphibia： Anura： Microhylidae) from Zhejiang Province, China

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Asian Herpetological Research 2018年第3期9卷 135-148页

作者： meihua zhang Liang FEI Changyuan YE Yufan WANG Bin Wang Jianping JIANG CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province Chengdu Institute of Biology Chinese Academy of Sciences Chengdu 610041 China University of Chinese Academy of Sciences Beijing 100049 China Zhejiang Forest Resource Monitoring Center Hangzhou 310020 China

We described a new species, Microhyla beilunensis sp. nov., from Zhejiang Province of China. Phylogenetic analyses based on the mitochondrial 12 S, 16 S and CO1 gene sequences suggested that the new taxon was distinctly separated from its congeners and closed to M. mixtura and M. okinavensis. Morphologically, the new species could be identified from its congeners except M. mixtura by several characters：（1） rudimentary webs on toe base;（2） absence of disks and dorsal median longitudinal grooves on finger tips;（3） presence of disks and dorsal median longitudinal grooves on toe tips. As well, the new species could be identified from topotype M. mixtura by the combination of characters：（1） apart from the stripes, bar-shaped and oval-shaped patterns, the rounded spots present on the dorsum of body and legs;（2） the outer metacarpal tubercles prominently larger than the inner one;（3） of males, the ratios of HW, IND, UEW and LAW to SVL of the new species were significantly larger than those of M. mixtura（P 〈 0.01）, and the ratios of SL, IOD, LAHL, HLL, TL, TFL and FL to SVL of the new species were significantly less than those of M. mixtura（P 〈 0.05）.

关键词： Microhyla morphological comparison new species phylogenetic analysis taxonomy Zhejiang

Three New Species of Diploderma Hallowell, 1861 (Reptilia: Squamata: Agamidae) from the Shaluli Mountains in Western Sichuan, China

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Asian Herpetological Research 2022年第4期13卷 205-223页

作者： Bo CAI meihua zhang Jing LI Simeng DU Feng XIE Mian HOU Huaming ZHOU Jianping JIANG CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan ProvinceChengdu Institute of BiologyChinese Academy of SciencesChengdu 610041SichuanChina Ganzi Institute of Forestry Research Kangding 626001SichuanChina College of Continuing(Online)Education Sichuan Normal UniversityChengdu 610068SichuanChina University of the Chinese Academy of Sciences Beijing 100049China Mangkang Biodiversity and Ecological Station Tibet Ecological Safety Monitor NetworkChangdu 854500TibetChina

In recent years,taxonomic research of the genus Diploderma has made great progress,but there are still areas lacking relevant *** 2020-2021,we carried out survey of reptile diversity in and around the Shaluli Mountains and collected some specimens of *** which,based on systematics inferred from mitochondrial ND2 gene sequence and morphological data,three new species were recognized:Diploderma daochengense *** the Shuiluo River and Muli River valleys in southeastern Daocheng County,*** *** the upper-middle valleys of the Yalong River in Xinlong County,and *** *** the Yalong River middle valley and Liqiu River ***,these three new species formed three monophyletic lineages with strongly supported and nested into the subclade I of the Bayesian and Maximum Likelihood *** uncorrected mean genetic distance between these new species and their closely related species was 4.3%(*** ***),3.4%(*** ***)and 5.5%(*** ***),higher than many pairs of species of *** respect to the morphology,*** *** be easily diagnosed from *** byhaving smoothupper edge of the dorsolateral stripes,cyan or dark olive green to yellow gular spots inbothsexes and light yelloworwhite ventrolateral body in males;*** *** be easily diagnosed from *** by having cyan gular spot in both sexes;*** *** be easily diagnosed from *** by having more T4S 20-25(average 23),more F4S 16-20(average 17)and yellow to light yellow ventrolateral body,yellow gular spot present in *** date,the number of species of the genus Diploderma has increased to 40,of which 37 species have been known in China.

关键词： Ganzi taxonomy Hengduan Mountains Mountain Dragons RGBcolormodel

Osteology of Leptobrachella bijie(Anura,Megophryidae)

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Asian Herpetological Research 2024年第2期15卷 90-103页

作者： Wei LI meihua zhang Zhonghao LUO Jing LIU Tuo SHEN Bo CHEN Haijun SU Bin WANG College of Forestry Guizhou UniversityGuiyang 550025GuizhouChina Chengdu Institute of Biology Chinese Academy of SciencesChengdu 610041SichuanChina

The Asian leaf litter toad genus Leptobrachella contains more than 100 species widely distributed in southwestern ***,the systematic profiles of this group remain *** morphology is important for taxonomic and phylogenetic ***,few studies have focused on the osteology of the ***,we comprehensively described the osteological features of a representative species *** based on micro-CT scanning and double-staining *** results show that the skull of adult *** is well-ossified,exhibiting sexual dimorphism and minimal intraspecific *** skull length is slightly greater than the width,with the maxilla slightly overlapping with the *** nasal connects with the sphenethmoid in males,but only part or not connects with the sphenethmoid in *** transverse processes of the sacrum are robust and symmetrically butterfly-shaped,and the presacral vertebrae are *** pectoral girdle is *** phalangeal formula is 2-2-3-3 for the hand,and 2-2-3-4-3 for the *** study provides the first detailed and comprehensive osteological accounts of the genus Leptobrachella.

关键词： sexual dimorphism skeleton taxonomy

THERMODYNAMIC CRITERION OF SPINODAL DECOMPOSITION IN TERNARY SYSTEMS

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Acta Metallurgica Sinica(English Letters) 1991年第8期4卷 75-81页

作者： JIANG Bohong zhang meihua WEI Qing XU Zuyao(T.Y.Hsu) Shanghai Jiaotong University,Shanghai,China Shanghai Jiaotong Univ Shanghai China

By expanding the Gibbs free energy of a ternary system into a Taylor series with respect to the composition,a thermodynamic criterion of spinodal decomposition is conducted as G_(xx)(δx)2+2G_(xx)δxδy+G_(yy)(δy)~20,or G_(xx)>0, G_(xy)~2-G_(xx)G_(yy)>0,as well as G_(xx)=0,are all considered as unstable decomposition restricted by the direction of composition fluctuation δx and δ*** phenomenon of turning round in composition during spinodal decomposition is attempted to be explained from above point of *** computer calculated ranges of unstable decomposition according to the criterion of spinodal decomposition on Cu-Ni-Fe ternary system is consistent with the experimental re- sults obtained from literatures.

关键词： spinodal decomposition thermodyamic criterion Cu-Ni-Fe

MitochondrialtRNA^(leu(UUR)) Gene Mutation and the DecreasedActivity of Cytochrom e c Oxidase in Preeclam psia

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Journal of Huazhong University of Science and Technology(Medical Sciences) 1999年第3期19卷 209-211页

作者： WANG Zehua zhang Guanglan , LIN meihua Department of Gynecology and Obstetrics, Xiehe Hospital, Tongji Medical University, Wuhan 430030 Department of Gynecology and Obstetrics Xiehe Hospital Tongji Medical University Wuhan

To explore the roles of mitochondria tRNA leu(UUR) gene mutation at nucleotide 3243 and the activity of cytochrome c oxidase in pathogenesis of preeclampsia, 57 patients with preeclampsia and 60 normotension pregnancy women were screened for tRNA leu(UUR) nt3243 A→G mutation with the method of polymers chain reaction (PCR) and restriction fragment length polymorphism. Cytochrome c oxidase activity was determined by measuring the rate of cyanide sensitive oxidation of reduced cytochrome c using luminosity photographer. The results showed that cytochrome c oxidase activity was significantly lower in the preeclampsia group (0.30±0.39/min, n = 32) than that in the controls (0.73±0.54/min, n = 26, P <0.01). The mitochondria DNA mutation at position 3243 was not found in our series. The results suggested that the decreased activity of cytochrome c oxidase might impair the energy production, leading to the mitochondria dysfunction and placenta dysfunction in preeclampsia patients. Mitochondria dysfunction may be involved in the pathogenesis of preeclampsia. The mutation of mitochondria DNA may not be the common contributor of preeclampsia in our series.

关键词： pregnancy complications, cardiovascular hypertension cytochrome c oxidase mitochondrial tRNA mutation PCR luminosity photographer

Prediction and Diversion Mechanisms for Crowd Management Based on Risk Rating

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Engineering（科研） 2017年第5期9卷 377-387页

作者： meihua zhang Yuan Yao Kefan Xie School of Management Wuhan University of Technology Wuhan China School of Management South-Central University for Nationalities Wuhan China College of Physical Science and Technology Central China Normal University Wuhan China

Studies of past accidents have revealed that various elements such as failure to identify hazards, crowd behaviors out of controlling, deficiency of the egress signage system, inconsistency between process behavior and process plan, and environmental constraints, etc. affected crowd evacuation. Above all, the human factor is the key issue in safety and disaster management, although it is bound to other factors inextricably. This paper explores crowd behaviors that may influence an urgent situation, and discusses the technique applied to the crowd prediction. Based on risk rating relative to crowd density, risk plans for different levels are proposed to dispose the potential threats. Also practical crowd management measures at different risk levels are illustrated in a case of a metro station in China. Finally, the strategies for crowd security management are advised that all stakeholders are amenable to form risk consciousness and implement safety procedures consistent with risk plans professionally and scientifically.

关键词： Crowd Security Crowd Behaviors Crowd Density Risk Rating Crowd Diversion

Research on characters of surrounding rock in complex geology conditions and supporting time

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Engineering Sciences 2008年第2期6卷 91-96页

作者： Yu Weijian Gao Qian Zhai Shuhua zhang meihua Civil and Environmental Engineering School University of Science and Technology Beijing Beijing 100083 China State Key Laboratory of High-Efficient Mining and Safety of Metal Mines Beijing 100083 China

The methods combined by test, field monitoring and theoretical analysis were adopted to do the systemic research on the rock mass from micro-structure to macro-deformation, and rheological model of Jinchuan rock mass was established to discuss the reasonable supporting time. Resuhs show that supporting after suitable stress and displacement release can benefit for the long-term stability of surrounding rock.

关键词： complex geological conditions surrounding rock characteristic test supporting time theological characteristic

Effect of Gestational Diabetes Mellitus on the Growth, Development, and Stem Cells of Offspring

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Maternal-Fetal Medicine 2023年第1期5卷 31-35页

作者： meihua zhang Munan Ma Jinping Wang Yijun Wang Xinrui Yang Songtao Fu Maternity Department Taiyuan Maternal and Child Health HospitalTaiyuanShanxi 030001China Department of Biochemistry&Molecular Biology Shanxi Medical UniversityTaiyuanShanxi 030001China Birth Defects and Regenerative Medicine Laboratory Department of Biochemistry&Molecular BiologyShanxi Medical UniversityTaiyuanShanxi 030001China Biomedicine and Health Graduate Education Innovation Center TaiyuanShanxi 030001China

The effects of gestational diabetes mellitus (GDM) on offspring include macrosomia, hypoglycemia, respiratory distress syndrome, cardiovascular disease, neural and mental injury, etc. The effects of GDM on the health status of offspring are sustained although pregnancy has ended. It has been proposed that fetal reprogramming causes long-term consequences to metabolic health in offspring. An intrauterine high-glucose environment may lead to changes in the multi-differentiation proficiency of intracorporal stem cells, showing decreased proliferation and osteogenic ability, increased adipogenic ability, accelerated apoptosis, and occurrence of premature failure. This environment also reduces the mobilization of bone marrow stem cells, whereas it increases that of medullary cells. This results in pro-inflammatory conditions and sustained inflammation in the body, thereby increasing the risk of obesity, cardiovascular and neurological disorders, and metabolic abnormalities. Stem cells derived from the amniotic membrane, umbilical cord, or placenta may be a reliable predictor of the long-term effects of GDM on offspring. The levels of blood glucose during pregnancy should be effectively controlled to reduce harm to the neonate.

关键词： Diabetes gestational Growth and development Offspring Stem cells

Benign symmetric lipomatosis of the knees

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Journal of Nanjing Medical University 2008年第5期22卷 325-327页

作者： Zhiqiang Yin Di Wu Yixin Ge meihua zhang Zhigang Bi Dan Luo Department of Derntatology the First Affiliated Hospital of Nanjing Medical University Nanjing 210029 Jiangsu Province China

Benign symmetric lipomatosis（BSL） is a rare disease characterized by the presence of multiple, symmetric and nonencapsulated fat masses in the face. neck and other areas. It is commonly seen in middle-aged Caucasian Mediterranean males, while its etiology is still not clear. The majority of the patients with BSL have a history of alcohol abuse and hepatopathy. BSL of the limbs is very rare. This article reports a unique case of a 60-year-old Chinese woman with involvement of the knees confirmed by the results of magnetic resonance imaging（MR1） and histopathology, which was not described previously in published literatures.

关键词： benign symmetric lipomatosis Madelung' s disease knee