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南岭地区鱼类多样性及其地理分布

生物多样性 2024年第7期32卷 154-164页

作者：许佳崔小娟张翼飞吴昌孙远东湖南科技大学生命科学与健康学院湖南湘潭411201 湖南师范大学省部共建淡水鱼类发育生物学国家重点实验室长沙410081

鱼类是河流生态系统的重要组成部分,对维系河流生态系统稳定性发挥关键作用。鱼类多样性作为评价河流环境变化的重要指标,可以直接反映该地区河流生态系统的健康状况。南岭地区河流众多,淡水鱼类多样性十分丰富,但目前尚缺乏对此地区鱼... 详细信息

鱼类是河流生态系统的重要组成部分,对维系河流生态系统稳定性发挥关键作用。鱼类多样性作为评价河流环境变化的重要指标,可以直接反映该地区河流生态系统的健康状况。南岭地区河流众多,淡水鱼类多样性十分丰富,但目前尚缺乏对此地区鱼类物种多样性及其地理分布的系统研究。本文基于历史文献资料和相关书籍(截至2024年1月10日),系统整理了南岭地区鱼类物种组成信息。结果表明,南岭地区共有淡水鱼类261种,隶属11目29科121属。其中,土著鱼类248种,外来鱼类13种。南岭地区鱼类以鲤形目鲤科和爬鳅科鱼类为主,分别占南岭地区鱼类总物种数的56.7%和7.3%;受威胁鱼类共19种,占南岭地区鱼类总物种数的7.3%,有11种列入《国家重点保护野生动物名录》(2021),有28种属于“国家重点保护经济水生动物”。南岭地区鱼类多样性正面临严峻挑战,主要由于河流污染、水利设施开发和过度捕捞等人类活动的影响,导致该地区受威胁物种和入侵物种比例上升。建议今后加强治理河流污染、保护鱼类栖息地、科学开展增殖放流等。本文整理所得的南岭地区鱼类物种名录可作为今后南岭地区鱼类生物多样性保护的参考依据。

关键词：淡水鱼类物种多样性地理分布受威胁物种南岭地区

Tunable piezoelectric and ferroelectric responses of Al1-xScxN:The role of atomic arrangement

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Science China(Physics,Mechanics & Astronomy) 2023年第7期66卷 142-148页

作者： Hang Zang Zhiming Shi Mingrui Liu yuping jia Ke jiang jianwei Ben Yang Chen Shunpeng Lv xiaojuan sun Dabing Li State Key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

In this study,we present first-principles investigations of the atomic structure of Al_(1-x)Sc_(x)N and its influence on its piezoelectric and ferroelectric *** unbiased structure searching revealed that Al_(1-x)Sc_(x)N with phase separation feature,where Al N and Sc N form a layered structure with different symmetries,is more stable than the corresponding wurtzite *** piezoelectric response of Al_(1-x)Sc_(x)N is strongly dependent on the atomic arrangements;in particular,Al_(0.5)Sc_(0.5)N with a wurtzite structure exhibits a large positive e33of 4.79 C/m^(2),whereas Al_(0.5)Sc_(0.5)N with a phase separation structure exhibits a negative e33of-0.67 C/m^(2).Moreover,the ferroelectric switching of Al_(1-x)Sc_(x)N demonstrated two distinct pathways for the wurtzite and phase separation structures,and the spontaneous polarization thus calculated exhibits entirely different ***,we demonstrated that Al_(1-x)Sc_(x)N with a phase separation structure exhibits a low polarization switching barrier of 0.15 e V/*** a large spontaneous polarization of-0.77 C/m^(2);thus,it can serve as a novel Al_(1-x)Sc_(x)N-based ferroelectric *** the dipoles in Al_(1-x)Sc_(x)N with a phase separation structure are localized in the AlN region,they are individually switchable at no domain wall energy cost and are stable against extrinsic effects.

关键词： AIS_(c)N piezoelectric ferroelectric density functional theory

Chinese expert consensus on the diagnosis and treatment of balanoposthitis

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Chinese Medical Journal 2024年第13期137卷 1519-1521页

作者： Li Zhang Amer A.A.Abdulrahman Hao Guo jia’an Zhang Xinghua Gao Weihua Pan Gang Wang Jinhua Xu Yuling Shi Liuqing Chen Hongxiang Chen Songmei Geng yuping Ran Hongwei Wang Xiaoyong Man jianmin Chang Furen Zhang Litao Zhang Guangwen Yin jianzhong Zhang Wei Lai Zhibin Niu Hongkun jiang Haibo Liu Yaolong Chen jianjian Wang Department of Dermatology The First Hospital of China Medical UniversityShenyangLiaoning 110001China Key Laboratory of Immunodermatology Ministry of Education and NHCNational Joint Engineering Research Center for Theranostics of Immunological Skin DiseasesShenyangLiaoning 110001China Department of Dermatology Chinese Academy of Medical Science and Peking Union Medical CollegeNanjingJiangsu 210042China Department of Dermatology Second Affiliated Hospital of Naval Medical UniversityShanghai 200003China Department of Dermatology Xijing HospitalFourth Military Medical UniversityXi’anShaanxi 710032China Department of Dermatology Huashan HospitalFudan UniversityShanghai 200040China Department of Dermatology Shanghai Skin Disease HospitalTongji University School of MedicineShanghai 200443China Department of Dermatology Wuhan No.1 HospitalWuhanHubei 430022China Department of Dermatology Huazhong University of Science and Technology Union Shenzhen HospitalShenzhenGuangdong 518052China Department of Dermatology Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anShaanxi 710004China Department of Dermatovenereology West China HospitalSichuan UniversityChengduSichuan 610041China Department of Dermatology Huadong HospitalFudan UniversityShanghai 200040China Department of Dermatology Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang 310009China Department of Dermatology Beijing HospitalBeijing 100730China Shandong Provincial Hospital for Skin Diseases&Shandong Provincial Institute of Dermatology and Venereology Shandong First Medical University&Shandong Academy of Medical SciencesJinanShandong 250061China Department of Dermatology Tianjin Academy of Traditional Chinese Medicine Affiliated HospitalTianjin 300120China Department of Dermatology The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan 450052China Department of Dermatology Peking University People’s HospitalBeijing 100044 China Department of Dermatology Third Affi

Balanoposthitis(BP),a common male genitalia inflammation,is managed by clinicians from different specialties,including urology,pediatrics,dermatology,and *** to this diverse array of clinicians involved,there exists a lack of consistent,evidence-based recommendations for *** development of the consensus engaged 19 representative hospitals and it adhered to rigorous protocols,encompassing international registration(IPGRP-2021CN003)and the application of evidence grading criteria and recommendation standards[Appendix S1,Supplementary File,http://***/CM9/C42].Over the period from December 2020 to October 2022,consensus on 12 clinical issues was reached through comprehensive evidence searches and two iterations of Delphi surveys[Supplementary File,http://***/CM9/C42].

关键词： Delphi diagnosis rigorous

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选本视域下秦观文章的递降性接受

中国文学研究 2024年第2期 122-129页

作者：滕瑜平中山大学中文系广东广州510220

秦观文章的文学史地位可通过选本反映。《宋文鉴》等二十余部选本根据政治立场、文学好尚、文体规范以及实用性等因素对秦文进行选录。在与宋六家、苏门六君子文章选录数量的比较中可以发现,秦文在其中居于中游地位。南宋选录秦文的选... 详细信息

秦观文章的文学史地位可通过选本反映。《宋文鉴》等二十余部选本根据政治立场、文学好尚、文体规范以及实用性等因素对秦文进行选录。在与宋六家、苏门六君子文章选录数量的比较中可以发现,秦文在其中居于中游地位。南宋选录秦文的选本最多,其数量甚至超过后代之和,这主要是受到科举考试与南宋人对苏门士人的推崇等因素的影响。而宋代以后选本对秦文选录明显减少,其根本原因在于与欧苏等一流作家相比,秦文的思想性不及他们,艺术上又好模拟,难以自成一家。这同时也与秦观词作的造诣得到普遍认可、文体的不同功用、唐宋八大家文统的确立以及八股文师法的对象有关。

关键词：秦观文章文体选本宋人选宋文

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2019—2022年河北省儿童医院住院儿童传染性单核细胞增多症的流行病学特征分析

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中国临床研究 2024年第7期37卷 1101-1104页

作者：闫江泓孙海洋刘颖业贾彬葛胜旺任会强王乐王晓娟河北省儿童医院河北省儿科研究所河北石家庄050000 沧州市疾病预防控制中心传染病防制科河北沧州061000 河北省儿童医院病案室河北石家庄050000 河北省儿童医院病理科河北石家庄050000 河北省儿童医院门诊部河北石家庄050000

目的调查河北省儿童医院住院儿童传染性单核细胞增多症(IM)的流行病学特征。方法从2019年1月1日至2022年12月31日来自河北省儿童医院的出院病历首页,提取包括性别、年龄、住院花费和住院天数等医疗信息进行分析。结果共有1043例IM病例,... 详细信息

目的调查河北省儿童医院住院儿童传染性单核细胞增多症(IM)的流行病学特征。方法从2019年1月1日至2022年12月31日来自河北省儿童医院的出院病历首页,提取包括性别、年龄、住院花费和住院天数等医疗信息进行分析。结果共有1043例IM病例,占所有住院患儿的0.53%(1043/197706),男女比例为1.56∶1。所有住院IM患儿住院天数为9(7,11)d,1043例中来自城市和农村地区的分别占41.42%和58.58%,差异无统计学意义(P>0.05)。住院费用为8065(715.60,1343.29)元。<1岁、1~3岁、4~6岁、7~12岁和13~18岁IM患儿占总住院患儿的比例分别为0.05%、0.76%、0.94%、0.32%和0.12%,差异有统计学意义(χ^(2)=445.580,P<0.01),其中4~6岁IM患儿的比例最高。2019、2020、2021、2022年IM患儿占总住院患儿的比例依次为0.66%、0.74%、0.61%、0.11%,差异有统计学意义(χ^(2)=232.145,P<0.01),其呈先上升后下降,以2020年最高。此外7月至9月IM住院例数达峰,而12月至3月最低。肝功能异常、支气管炎和肺炎是住院IM患儿常见的并发症。结论在住院患儿中,IM的流行具有年龄和季节性特征,应采取措施降低儿童IM发病率,减少其疾病负担和并发症。

关键词：儿童传染性单核细胞增多症流行病学肝功能异常支气管炎肺炎

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Construction of van der Waals substrates for largely mismatched heteroepitaxy systems using first principles

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Science China(Physics,Mechanics & Astronomy) 2019年第12期62卷 89-95页

作者： ZhiMing Shi xiaojuan sun yuping jia XinKe Liu ShanLi Zhang ZhanBin Qi DaBing Li State Key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

The high density of defects induced by large strains in largely mismatched heteroepitaxy systems, such as AlN and GaN, because of the large lattice and thermal mismatch between substrates and epilayers is the bottleneck problem. Graphene-assisted van der Waals(vdW) heteroepitaxy offers a new opportunity to resolve this problem. However, it suffers from the difficulty of nucleation. Here we theoretically assess the effects of five 2D materials for vdW heteroepitaxy of AlN and GaN, including graphene, hBN, MoS2, gC3N, and gC3N4, and provide physical insights using first-principle calculations. MoS2 and gC3N exhibit significant potential to overcome the shortcomings of graphene owing to their appropriate binding strengths and Al(or Ga)diffusion barriers. Moreover, the interface behavior between the epilayers and the substrates are carefully analyzed. Our findings are helpful not only for obtaining high-quality AlN and GaN films but also for developing new criterions to discover effective 2D materials for vdW heteroepitaxy.

关键词： van der Waals epitaxy 2D materials first principles

品种和播种量互作对机械旱直播水稻与杂草养分竞争的影响

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中国水稻科学 2024年第2期38卷 185-197页

作者：杨永刚袁晓娟曹云陈雪芳尹慧来王志强文艳芳杨志远孙园园贾现文马均孙永健四川农业大学水稻研究所/作物生理生态及栽培四川省重点实验室成都611130 四川省农业气象中心成都610072 眉山市农业农村局四川眉山620020

[目的]明确机械旱直播水稻品种和播种量对抑制杂草生长的效果,为实现机直播稻优质高产绿色高效栽培提供理论依据。[方法]以三系杂交稻川康优6308(C_(1))和两系杂交稻晶两优534(C_(2))为试材,设15kg/hm^(2)(S_(1))、22.5 kg/hm^(2)(S_(2)... 详细信息

[目的]明确机械旱直播水稻品种和播种量对抑制杂草生长的效果,为实现机直播稻优质高产绿色高效栽培提供理论依据。[方法]以三系杂交稻川康优6308(C_(1))和两系杂交稻晶两优534(C_(2))为试材,设15kg/hm^(2)(S_(1))、22.5 kg/hm^(2)(S_(2))、37.5 kg/hm^(2)(S_(3))三个播种量,研究其对稻田主要杂草与水稻关键生育时期干物质累积、养分累积及转运的影响,并探讨品种和播种量互作下水稻与杂草养分竞争的关系。[结果]1)直播后29 d时,稻田杂草密度较水稻显著增加39.29%~47.16%,且杂草与水稻群体干质量比及养分累积比均高于1∶1,据此进行了一次必要性除草。2)除草前,品种C_(1)较C_(2)杂草密度显著降低91.34%~96.54%,水稻干物质累积量增加19.21%~30.24%,氮、磷、钾累积提高7.17%~34.59%;同一品种提高播种量,杂草量显著降低,相对S_(1),S_(2)和S_(3)处理杂草量显著降低21.95%~109.69%,水稻干物质累积量增加39.78%~94.52%,氮、磷、钾累积量提高10.11%~50.79%。3)除草后,直播43 d,杂草数量显著降低,品种C_(1)较C_(2)干物质累积量增加54.12%~66.97%,氮、磷、钾养分提高15.56%~47.45%;同一品种下,S_(2)和S_(3)较S_(1)处理水稻密度显著提高14.94%~32.34%,干物质累积量增加24.45%~85.07%,氮、磷、钾养分提高21.62%~98.34%;但随播种量的增加,结实期氮、磷、钾养分转运量与转运率,以及稻谷产量均呈先增加后降低趋势,以S_(2)处理最高。[结论]综合抑制杂草生长和稻谷产量,机械旱直播水稻以选用川康优6308配套22.5 kg/hm^(2)播种量,并依据稻田杂草总密度高于水稻且杂草与水稻群体干质量比及养分比1∶1时为最佳除草时机,可发挥水稻品种与播种量互作的优势控制杂草生长,减少除草剂使用,提高产量。

关键词：机直播水稻品种播种量杂草竞争养分

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Multiple-quantum-well-induced unipolar carrier transport multiplication in AlGaN solar-blind ultraviolet photodiode

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Photonics Research 2021年第10期9卷 1907-1915页

作者： LONG GUO KE jiaNG xiaojuan sun ZIHUI ZHANG jiaNWEI BEN yuping jia YONG WANG DABING LI State Key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Electronic Materials and Devices of Tianjin School of Electronics and Information EngineeringHebei University of TechnologyTianjin 300401China

AlGaN solar-blind ultraviolet(SBUV)detectors have potential application in fire monitoring,corona discharge monitoring,or biological *** the promotion of application requirements,there is an urgent demand for developing a high-performance vertical detector that can work at low bias or even zero *** this work,we have introduced a photoconductive gain mechanism into a vertical AlGaN SBUV detector and successfully realized it in a p-i-n photodiode via inserting a multiple-quantum-well(MQW)into the depletion *** MQW plays the role of trapping holes and increasing carrier lifetime due to its strong hole confinement effect and quantum confinement Stark ***,the electrons can go through the detector multiple times,inducing unipolar carrier transport ***,an AlGaN SBUV detector with a zero-bias peak responsivity of about 0.425 A/W at 233 nm is achieved,corresponding to an external quantum efficiency of 226%,indicating the existence of internal current *** compared with the device without MQW structure,the gain is estimated to be about 103 in *** investigation provides an alternative and effective approach to obtain high current gain in vertical AlGaN SBUV detectors at zero bias.

关键词： AlGaN quantum ultraviolet

Monolithic integration of MoS2-based visible detectors and GaN-based UV detectors

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Photonics Research 2019年第10期7卷 1127-1133页

作者： YOU WU ZHIWEN LI KAH-WEE ANG yuping jia ZHIMING SHI ZHI HUANG WENJIE YU xiaojuan sun XINKE LIU DABING LI State Key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore Shenzhen Castle Security Technology Co. Ltd.Shenzhen 518000China State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China

With the increasing demand for high integration and multi-color photodetection for both military and civilian applications, the research of multi-wavelength detectors has become a new research hotspot. However, current research has been mainly in visible dual-or multi-wavelength detectors, while integration of both visible light and ultraviolet(UV) dual-wavelength detectors has rarely been studied. In this work, large-scale and high-quality monolayer MoS2 was grown by the chemical vapor deposition method on transparent free-standing GaN substrate. Monolithic integration of MoS2-based visible detectors and GaN-based UV detectors was demonstrated using common semiconductor fabrication technologies such as photolithography, argon plasma etching, and metal deposition. High performance of a 280 nm and 405 nm dual-wavelength photodetector was *** responsivity of the UV detector reached 172.12 A/W, while that of the visible detector reached 17.5 A/***, both photodetectors achieved high photocurrent gain, high external quantum efficiency, high normalized detection rate, and low noise equivalent power. Our study extends the future application of dual-wavelength detectors for image sensing and optical communication.

关键词： visible integration ultraviolet