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Elucidating elusive quaternary selenide EuCeCuSe3:Synthesis,crystal structure,properties and theoretical studies

Journal of Rare Earths 2024年第1期42卷 163-171,I0006页

作者： Maxim V.Grigoriev anna V.Ruseikina Maxim S.Molokeev Vladimir A.Chernyshev Aleksandr S.Aleksandrovsky Alexander S.Krylov Svetlana N.Krylova Nikolai P.Shestakov Dmitriy A.Velikanov Alexander A.Garmonov Alexey V.Matigorov Evgeny A.Ostapchuk Thomas Schleid Damir A.Safin Laboratory of Theory and Optimization of Chemical and Technological Processes University of TyumenVolodarskogo Str.6625003TyumenRussian Federation Kirensky Institute of Physics Federal Research Center KSC SB RASAkademgorodok 50 Bld.38660036KrasnoyarskRussian Federation Department of Physics Far Eastern State Transport UniversitySerysheva Str.47680021KrasnoyarskRussian Federation Institute of Natural Sciences and Mathematics Ural Federal University Named After the First President of Russia B.N.YeltsinMira Str.19620002EkaterinburgRussian Federation Department of Photonics and Laser Technology Siberian Federal UniversitySvobodnii Ave.79660079KrasnoyarskRussian Federation Institute of Physics and Technology University of TyumenVolodarskogo Str.6625003 TyumenRussian Federation Institute for Inorganic Chemistry University of StuttgartPfaffenwaldring 55D-70569StuttgartGermany Scientific and Educational and Innovation Center for Chemical and Pharmaceutical Technologies Ural Federal University named after the First President of Russia B.N.YeltsinMira Str.19620002 EkaterinburgRussian Federation University of Tyumen Volodarskogo Str.6625003TyumenRussian Federation

We report on the novel heterometallic quaternary selenide EuCeCuSe3,the fabrication of which has been a challenge until this *** structure of the reported selenide was elucidated from the powder X-ray diffraction data,which revealed the formation of EuCeCuSe3with excellent yield(96.7%)accompanied with a minor fraction of CeSe2(3.3%),and was best solved in orthorhombic space group Pnma with the BaLaCuS3structural ***,the crystal structure of the title compound completes the row of the heterometallic quaternary selenides EuRECuSe3(RE=La,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu,Y),of which the cerium-based derivative exclusively belongs to the BaLaCuS3structural *** distortion of the CuSe4polyhedron was compared for the whole series of EuRECuSe3compounds using theτ4-descriptor for four coordinated ions,which revealed the highest degree of distortion for the Ce3+-containing selenide,followed by the La3+-based ***,the crystallographic and geometrical parameters of the reported selenide were discussed in comparison to the Ce3+-based sulfides SrCeCuS3and *** initio calculations of the crystal structure,a phonon spectrum and elastic constants for the crystal of EuCeCuSe3were also *** types and wavenumbers of fundame ntal modes were determined and the involvement of ions participating in the phonon modes was *** experimental IR spectrum of the reported selenide was interpreted and found to be in agreement with the calculated *** experimental direct band gap of EuCeCuSe3was measured to be 1.36 eV that is consistent with the concept of its origin due to interband transitions between orbitals emerging mainly from 4f(valence band)and 5d(conduction band)levels of the Eu2+*** dependence of the Young’s modulus on the direction demonstrates the anisotropy of the elastic properties,while the Vickers hardness for EuCeCuSe3was calculated to be 5.2 ***,the title compound is paramagnetic above 4 K.

关键词： Quaternary selenide Synthesis Crystal structure Ab initio calculations Magnetic measurements Spectroscopy

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Increasingβ-hexosaminidase A activity using genetically modified mesenchymal stem cells

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Neural Regeneration Research 2024年第1期19卷 212-219页

作者： Alisa A.Shaimardanova Daria S.Chulpanova Valeriya V.Solovуeva Shaza S.Issa Aysilu I.Mullagulova Angelina A.Titova Yana O.Mukhamedshina anna V.Timofeeva Alexander M.Aimaletdinov Islam R.Nigmetzyanov Albert A.Rizvanov Institute of Fundamental Medicine and Biology Kazan Federal UniversityKazanRussia Department of Histology Cytology and EmbryologyKazan State Medical UniversityKazanRussia

GM2 gangliosidoses are a group of autosomal-recessive lysosomal storage disorde *** diseases result from a deficiency of lysosomal enzymeβ-hexosaminidase A(HexA),which is responsible for GM2 ganglioside *** deficiency causes the accumulation of GM2-gangliosides mainly in the nervous system cells,leading to severe progressive neurodegeneration and *** date,there is no treatment for these ***-mediated gene therapy is considered a promising treatment for GM2 *** study aimed to evaluate the ability of genetically modified mesenchymal stem cells(MSCs-HEXA-HEXB)to restore HexA deficiency in Tay-Sachs disease patient cells,as well as to analyze the functionality and biodistribution of MSCs in *** effectiveness of HexA deficiency cross-correction was shown in mutant MSCs upon intera ction with *** results also showed that the MSCs-HEXA-HEXB express the functionally active HexA enzyme,detectable in vivo,and intravenous injection of the cells does not cause an immune response in *** data suggest that genetically modified mesenchymal stem cells have the potentials to treat GM2 gangliosidoses.

关键词： adeno-associated viral vectors cell therapy cell-mediated gene therapy gene therapy GM2 gangliosidosis Sandhoff disease Tay-Sachs disease β-hexosaminidase

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情境优化、结构重塑与行为纠偏:农村生态河道长效管护的路径突破

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西北农林科技大学学报（社会科学版） 2024年第1期24卷 32-40页

作者：杜春林涂安娜河海大学公共管理学院南京211100

加强农村河湖管理是实施乡村振兴战略的重要任务。在自上而下的政策引导下,各级政府全面推进农村生态河道建设工作。然而,农村生态河道管护是一项长期任务和系统工程。反思既有研究从单一维度分析农村生态河道管护的局限性,在对P镇生态... 详细信息

加强农村河湖管理是实施乡村振兴战略的重要任务。在自上而下的政策引导下,各级政府全面推进农村生态河道建设工作。然而,农村生态河道管护是一项长期任务和系统工程。反思既有研究从单一维度分析农村生态河道管护的局限性,在对P镇生态河道管护的运行逻辑及长效机制分析基础上发现农村生态河道要实现真正意义上的长效管护,必须构建集保障、组织、运行于一体的管护体系,并从情境优化、结构重塑、行动纠偏等三个层面提出相应的治理思路。

关键词：农村生态河道管护多重维度运作逻辑长效机制

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考虑投入产出的常规公交调度绩效回溯性动态评价

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同济大学学报（自然科学版） 2024年第5期52卷 778-787,821页

作者：吴娇蓉田子立刘安娜同济大学道路与交通工程教育部重点实验室上海201804 同济大学城市交通研究院上海201804 湖南省邵阳市邵阳县黄荆乡人民政府湖南邵阳422118

实时调度因其灵活性在公交运营组织中发挥着重要决策作用。现行调度(员)绩效评价虽然能够考核行车计划执行情况,却忽略了在乘客体验和企业投入产出层面对调度效果考查,也不支持回溯过往调度实施效果。为使调度员能够精准提升调度技能和... 详细信息

实时调度因其灵活性在公交运营组织中发挥着重要决策作用。现行调度(员)绩效评价虽然能够考核行车计划执行情况,却忽略了在乘客体验和企业投入产出层面对调度效果考查,也不支持回溯过往调度实施效果。为使调度员能够精准提升调度技能和绩效、解决调度决策滞后造成的运能浪费等问题并提高乘客满意度,从投入产出及回溯性动态评价2个维度提出基于三阶段Super-SBM(super-efficiency slack-based measurement)模型的常规公交调度绩效评价方法,考虑路况及客流对调度效果的影响,在现行指标基础上从乘客角度增加运营速度、候车时间变化率及满载率标准差3项产出指标,构建评价体系。对2条上海公交线路的实际调度进行回溯性评价,验证了本文评价方法能准确区分调度效果差异。结果表明,高峰时段灵活的调度策略比在平峰能产生更明显的效益,且调度策略在不同时空场景呈现差异化适用性。通过回溯分析历史调度记录的绩效,一方面可以针对各场景为调度员提供调度决策支持,另一方面可为基于机器学习的公交实时调度策略生成技术挑选合适的学习样本,从而提升常规公交运营组织效率。

关键词：交通工程公交调度回溯性动态评价投入产出三阶段Super-SBM模型

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A Case Report of Kissing Molars Class II

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Open Journal of Stomatology 2024年第5期14卷 249-254页

作者： Toshiyuki Inou Keiichi Uchida Keiko Kaneko anna Fuji Nina Wakimoto Tatsuo Takaya Hiroyuki Kitamura Hiroshi Mori Yuji Kurihara Department of Oral Diagnostics and Comprehensive Dentistry Matsumoto Dental University Hospital Shiojiri Japan Department of Oral and Maxillofacial Surgery School of Dentistry Matsumoto Dental University Shiojiri Japan

Kissing molars (KMs) is a condition of occlusal molar surfaces in a single follicular space with roots extending in opposite directions. Here, we have reported a case of KMs in a 58-year-old woman. The patient complained of pain in the right mandibular molar region and was diagnosed with KMs consisting of the right mandibular second and third molars. Because of the patient’s pain having subsided at the time of the visit and her unwillingness to undergo tooth extraction, the patient was followed up. KMs is classified into three classes (I-III) and is either true-KMs or pseudo-KMs and presents with or without cystic variants of dental follicles. The presents as true-KMs class II without a cystic variant. With reference to the literature and based on our analysis, the mean age of patients affected by this specific case of KMs is 31.7 years and unilateral KMs is relatively more common (85.7%). Histopathological findings of dentigerous cysts are more often indicated (42.9%). The treatment policy for KMs should therefore be based on the classification of KMs. Importantly, the focus should be on preserving the first and second molars as much as possible. The treatment approach, such as the employment of surgical removal or orthodontics, should be determined by considering the associated factors such as the crowns, tissues, and age of the patient.

关键词： Kissing Molars Mandibular Second Molar Mandibular Third Molar Cone-Beam Computed Tomography

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木筏

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世界建筑 2024年第1期 34-35页

作者：无 anna Katrine Tan(摄影) 母卓尔(译) Coquille工作室 Tan&Blixenkrone工作室不详

“木筏”是哥本哈根运河的一座浮动平台上的感官装置,旨在为游客提供直接、有趣的水上感官体验。“木筏”的设计受到海洋动物的启发,并结合了帆船的几何形式和技术,用彩色屋顶来体现水的运动,仿佛创造出一个河边的“动物”。港口生活定... 详细信息

“木筏”是哥本哈根运河的一座浮动平台上的感官装置,旨在为游客提供直接、有趣的水上感官体验。“木筏”的设计受到海洋动物的启发,并结合了帆船的几何形式和技术,用彩色屋顶来体现水的运动,仿佛创造出一个河边的“动物”。港口生活定义了哥本哈根这座城市的身份和传统。在这个运河上的装置中,参观者被邀请去耐心观察和感受周围的环境,并在此过程中了解海平面上升给沿海城市及居民带来的挑战,以及全球变暖导致的海洋生物多样性危机。

关键词：几何形式浮动平台海洋生物多样性哥本哈根海洋动物感官体验全球变暖海平面上升

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应对TikTok美国国会思路是否狭隘

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商业周刊（中文版） 2024年第6期 14-16页

作者： anna Edgerton Alex Barinka 程玺(译) 不详

3月13日,美国众议院通过了一项可能会在美国封禁视频分享应用TikTok的法案,这是该国迄今在社交媒体时代采取的最激进的立法举措之一。许多持反对意见的议员希望拓宽思维。“我们需要通过有意义的保护言论自由的监管来解决所有社交网络... 详细信息

3月13日,美国众议院通过了一项可能会在美国封禁视频分享应用TikTok的法案,这是该国迄今在社交媒体时代采取的最激进的立法举措之一。许多持反对意见的议员希望拓宽思维。“我们需要通过有意义的保护言论自由的监管来解决所有社交网络的数据隐私问题,包括Meta和X等美国公司,”对该法案投下反对票的威斯康星州民主党众议员马克.波坎(Mark Pocan)在X上发帖表示,“而不只是针对一个平台。”

关键词：美国国会威斯康星州言论自由数据隐私美国众议院社交网络社交媒体时代视频分享

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3,6-Bis-β-Dicarbonylsubstituted Carbazoles Bearing N-Spacers and Their Eu(III) Complexes as Immunofluorescent Labelling Agents

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International Journal of Organic Chemistry 2024年第1期14卷 20-31页

作者： Dmitry E. Pugachev Georgy V. Zatonsky Tatyana S. Kostryukova anna G. Shubina Nikolay V. Vasiliev Department of Biological Microanalysis FGUP State Research Institute of Biological Engineering Moscow Russia Department of Theoretical and Applied Chemistry State University of Education Mytishchi Russia

New reagents for immunofluorescence analysis of carbazole series containing fluorinated β-dicarbonyl fragments and carboxylic substituent groups separated by spacers of different lengths from the light-gathering carbazole scaffold have been developed. The markers in complex with Eu3+ ions possess stability in the aqueous phase, intense and prolonged luminescence (τ 550 - 570 μs) with characteristic emission maxima in the region of 615 nm and excitation wavelengths in the region of 380 - 390 nm, which distinguishes them from most of the analogs used. In the study of marker conjugation with streptavidin, a reagent containing 4 - 5 europium labeling complexes based on spacer-containing carbazole tetraketone was obtained. The marker-doped silicate nanoparticles exhibit intense and long-lived luminescence in the characteristic region.

关键词： Fluorescence Immunoassay Fluorinated β-Diketones Carbazole Europium Complexes Streptavidin Nanodispersions

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Large-scale genome-wide SNP analysis reveals the rugged(and ragged)landscape of global ancestry,phylogeny,and demographic history in chicken breeds

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第4期25卷 324-340页

作者： Natalia V.DEMENTIEVA Yuri S.SHCHERBAKOV Olga I.STANISHEVSKAYA Anatoly B.VAKHRAMEEV Tatiana A.LARKINA Artem P.DYSIN Olga A.NIKOLAEVA anna E.RYABOVA Anastasiia I.AZOVTSEVA Olga V.MITROFANOVA Grigoriy K.PEGLIVANYAN Natalia R.REINBACH Darren K.GRIFFIN Michael N.ROMANOV Russian Research Institute of Farm Animal Genetics and Breeding-Branch of the L.K.Ernst Federal Research Centre for Animal Husbandry.Pushkin St.Petersburg196601Russia School of Biosciences University of KentCanterburyCT27NJUK L.K.Ernst Federal Research Center for Animal Husbandry DubrovitsyPodolskMoscow Oblast142132Russia

The worldwide chicken gene pool encompasses a remarkable,but shrinking,number of divergently selected breeds of diverse *** study was a large-scale genome-wide analysis of the landscape of the complex molecular architecture,genetic variability,and detailed structure among 49 *** populations represent a significant sample of the world's chicken breeds from Europe(Russia,Czech Republic,France,Spain,UK,etc.),Asia(China),North America(USA),and Oceania(Australia).Based on the results of breed genotyping using the Illumina 60K single nucleotide polymorphism(SNP)chip,a bioinformatic analysis was carried *** included the calculation of heterozygosity/homozygosity statistics,inbreeding coefficients,and effective population *** also included assessment of linkage disequilibrium and construction of phylogenetic *** multidimensional scaling,principal component analysis,and ADMIXTURE-assisted global ancestry analysis,we explored the genetic structure of populations and subpopulations in each *** overall 49-population phylogeny analysis was also performed,and a refined evolutionary model of chicken breed formation was proposed,which included egg,meat,dual-purpose types,and ambiguous *** a large-scale survey of genetic resources in poultry farming using modern genomic methods is of great interest both from the viewpoint of a general understanding of the genetics of the domestic chicken and for the further development of genomic technologies and approaches in poultry *** general,whole genome SNP genotyping of promising chicken breeds from the worldwide gene pool will promote the further development of modern genomic science as applied to poultry.

关键词： Chicken genome diversity Single nucleotide polymorphism(SNP)analysis Gene pool Global ancestry Phylogeny Demographic history

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肯尼亚花卉业是南部非洲重要的产业成功案例 3位关键人物功不可没

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中国花卉园艺 2024年第8期 70-73页

作者：依杨(译) Billy Coulson anna Langmead 不详 The Flower Hub

肯尼亚园艺花卉产业经常被称为撒哈拉以南非洲国家独立后最重要的产业成功案例之一。肯尼亚是该地区向欧洲出口水果、蔬菜和鲜花数量最大的国家。园艺产品是该国仅次于侨民汇款和旅游业的第三大外汇收入来源。具体说,鲜切花出口对肯尼... 详细信息

肯尼亚园艺花卉产业经常被称为撒哈拉以南非洲国家独立后最重要的产业成功案例之一。肯尼亚是该地区向欧洲出口水果、蔬菜和鲜花数量最大的国家。园艺产品是该国仅次于侨民汇款和旅游业的第三大外汇收入来源。具体说,鲜切花出口对肯尼亚国内生产总值的贡献为1.5%,据估计,花卉行业直接雇佣约15万人,并惠及了8~10倍的相关从业人员。

关键词：国内生产总值外汇收入花卉行业出口水果花卉业园艺产品南部非洲园艺花卉

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