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book review “Wattles: Australian Acacia species around the world” by David M. Richardson, Johannes J. Le Roux and Elizabete Marchante

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Forest Ecosystems 2024年第2期11卷 140-141页

作者： Klaus von Gadow Faculty of Forestry and Forest Ecology Georg-August-University GöttingenBüsgenweg 5D-37077GöttingenGermany Department of Forestry and Wood Science Faculty of AgriSciencesStellenbosch UniversityStellenbosch Private Bag X1Stellenbosch7602South Africa

In a world of Google and AI, developing an encyclopedic coverage of a theme that is of great interest to biologists, social scientists, politicians and environmental managers, is a daunting challenge. Wattles is a book that presents new knowledge, makes interesting reading, and has the potential to stimulate research in a variety of disciplines. We learn that Acacia, commonly known as the wattles or acacias, is a genus of shrubs and trees comprising 1,083 species of which 417 are known to have been introduced to areas outside their native range. We are surprised to read that Australian acacias are found almost everywhere, in virtually all terrestrial habitats, including woodlands, grasslands, alpine settings,rainforests, coastal dunes and deserts, causing major environmental and socio-economic changes in the invaded regions. Until recently, Acacia comprised a group of plant species native to Africa, South America and Australasia, but the name is now reserved for species predominantly from Australia, including some from Southeast Asia. The genus name Acacia is Neo-Latin, and refers to a preparation extracted from the leaves and fruit pods of Vachellia nilotica, the original type of the genus.

关键词： Richardson outside Latin

Grouping tree species to estimate basal area increment in temperate multispecies forests in Durango,Mexico

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Forest Ecosystems 2024年第1期11卷 1-13页

作者： Jaime Roberto Padilla-Martínez Carola Paul Kai Husmann Jose Javier Corral-Rivas Klaus von Gadow Department of Forest Economics and Sustainable Land-use Planning Faculty of Forest Sciences and Forest EcologyUniversity of GottingenBüsgenweg 137077GottingenGermany Facultad de Ciencias Forestales Universidad Juarez del Estado de DurangoRío Papaloapan y Boulevard Durango S/N34120DurangoMexico Faculty of Forestry and Forest Ecology Georg-August-UniversitatBüsgenweg 537077GottingenGermany Department of Forestry and Wood Science Faculty of AgriSciencesStellenbosch UniversityStellenbosch Private Bag X1Stellenbosch7602South Africa

Multispecies forests have received increased scientific attention,driven by the hypothesis that biodiversity improves ecological ***,a greater species diversity presents challenges for forest management and *** study aims to develop basal area growth models for tree species *** analysis is based on a dataset of 423 permanent plots(2,500 m^(2))located in temperate forests in Durango,***,we define tree species cohorts based on individual and neighborhood-based variables using a combination of principal component and cluster ***,we estimate the basal area increment of each cohort through the generalized additive model to describe the effect of tree size,competition,stand density and site *** principal component and cluster analyses assign a total of 37 tree species to eight cohorts that differed primarily with regard to the distribution of tree size and vertical position within the *** generalized additive models provide satisfactory estimates of tree growth for the species cohorts,explaining between 19 and 53 percent of the total variation of basal area increment,and highlight the following results:i)most cohorts show a"rise-and-fall"effect of tree size on tree growth;ii)surprisingly,the competition index"basal area of larger trees"had showed a positive effect in four of the eight cohorts;iii)stand density had a negative effect on basal area increment,though the effect was minor in medium-and high-density stands,and iv)basal area growth was positively correlated with site quality except for an oak *** developed species cohorts and growth models provide insight into their particular ecological features and growth patterns that may support the development of sustainable management strategies for temperate multispecies forests.

关键词： Temperate multispecies forests Cluster analysis basal area increment Generalized additive models

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肝内囊性病变的诊断和介入治疗

放射学实践 1993年第1期8卷 10-15页

作者： b.hamm P.Teller 王天才 Klinik fur Radiologie Abteilung fur Rontgendiagnostik Universitatsklinikum Steglitz der Freien Universitat Berlin Hindenburgdamm 30.1000 Berlin 45FRGPrlv.-Doz Dr 同济医科大学附属同济医院

采用现代断层显像方法诊断肝脏囊性病变是不成问题的。但是,对肝脏病灶的分类并依其病变不同而采用不同的治疗手段则向超声、CT和磁共振提出了一项特别的任务。本文研究的目的是从放射学观点出发,对不同囊性肝脏病进行研究,并报告介入... 详细信息

采用现代断层显像方法诊断肝脏囊性病变是不成问题的。但是,对肝脏病灶的分类并依其病变不同而采用不同的治疗手段则向超声、CT和磁共振提出了一项特别的任务。本文研究的目的是从放射学观点出发,对不同囊性肝脏病进行研究,并报告介入治疗的可能性。

关键词：肝内囊性病变 X线诊断治疗

子宫的磁共振检查——检查技术、正常和病理解剖

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放射学实践 1991年第3期6卷 125-131页

作者： T.Nauert b.hamm K.-J.Wolf 胡国栋 Klinik fur Radiologie Abt. Rontgendiagnostik Klinikum Steglitz Freie Universitat Berlin 同济医科大学附属同济医院

子宫的磁共振检查使非损伤性诊断技术得到改善,它涉及子宫肿瘤的诊断以及宫颈癌和子宫内膜癌的分期。

关键词：子宫 NMR 病理解剖

Temperature and structure measurements of heavy-ion-heated diamond using in situ X-ray diagnostics

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Matter and Radiation at Extremes 2024年第4期9卷 80-89页

作者： J.Lutgert P.Hesselbach M.Schorner V.bagnoud R.belikov P.Drechsel b.Heuser O.SHumphries P.Katrik b.Lindqvist C.Qu R.Redmer D.Riley G.Schaumann S.Schumacher A.Tauschwitz D.Varentsov K.Weyrich X.Yu b.Zielbauer Zs.Major P.Neumayer D.Kraus Institut fur Physik Universitat RostockAlbert-Einstein-Str.2318059 RostockGermany GSI Helmholtzzentrum fur Schwerionenforschung Planckstr.164291 DarmstadtGermany Institut für Angewandte Physik Goethe-Universität Frankfurt am MainMax-von-Laue-Str.160438 Frankfurt am MainGermany Institut fur Geowissenschaften Goethe-Universitat Frankfurt am MainAltenhoferallee 160438 Frankfurt am MainGermany Helmholtz-Zentrum Dresden-Rossendorf Bautzner Landstr.40001328 DresdenGermany European XFEL GmbH Holzkoppel 422869 SchenefeldGermany Centre for Plasma Physics School of Mathematics and PhysicsQueen’s University BelfastUniversity RoadBelfast BT71NNUnited Kingdom Institut für Kernphysik Technische Universität DarmstadtSchlossgartenstr.964289 DarmstadtGermany State Key Laboratory of Nuclear Physics and Technology Institute of Heavy Ion PhysicsPeking UniversityBeijing 100871China Helmholtz Institut Jena Frobelstieg 307743 JenaGermany

We present in situ measurements of spectrally resolved X-ray scattering and X-ray diffraction from monocrystalline diamond samples heatedwith an intense pulse of heavy *** this way,we determine the samples’heating dynamics and their microscopic and macroscopic structuralintegrity over a timespan of several *** the ratio of elastic to inelastic scattering with state-of-the-art density functionaltheory molecular dynamics simulations allows the inference of average temperatures around 1300 K,in agreement with predictions fromstopping power *** simultaneous diffraction measurements show no hints of any volumetric graphitization of the material,butdo indicate the onset of fracture in the diamond *** experiments pave the way for future studies at the Facility for Antiproton andIon Research,where a substantially increased intensity of the heavy ion beam will be available.

关键词： heated intense structure

应用分形分析对灌注MRI预测前列腺癌分级进行回顾性原理求证研究

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国际医学放射学杂志 2022年第4期 489-490页

作者： F.Michallek H.Huisman b.hamm S.Elezkurtaj A.Maxeiner M.Dewey 王天达

摘要目的多模态MRI诊断前列腺癌具有高度准确性，但对于其无创预测分级能力仍存在争议。研究血管解剖分形性、显示肿瘤血流灌注特点可能有助于阐明肿瘤侵袭潜

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Rationality of quotients by linear actions of affine groups

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Science China Mathematics 2011年第8期54卷 1521-1532页

作者： bOGOMOLOV Fedor bHNING Christian GRAF von bOTHMER Hans-Christian Department of Mathematics Courant Institute of Mathematical Sciences New York University Mathematisches Institut University of Gottingen

LetG = SLn(C)Cn be the (special) affine group. In this paper we study the representation theory of G and in particular the question of rationality for V/G, where V is a generically free G-representation. We show that the answer to this question is positive (Theorem 6.1) if the dimension of V is sufficiently large and V is indecomposable. We explicitly characterize two-step extensions 0 → S → V → Q → 0, with completely reducible S and Q, whose rationality cannot be obtained by the methods presented here (Theorem 5.3).

关键词： rationality linear group quotients affine groups

Systematic review of colorectal cancer screening guidelines for average-risk adults: Summarizing the current global recommendations

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World Journal of Gastroenterology 2018年第1期24卷 124-138页

作者： Florence bénard Alan N barkun Myriam Martel Daniel von Renteln Department of Medicine University of Montreal (UdeM )and University of Montreal Hospital Research Center (CRCHUM) Division of Gastroenterology McGill University Health Center McGill University Department of Medicine Division of Gastroenterology University of Montreal Hospital (CHUM)University of Montreal Hospital Research Center (CRCHUM)

AIM To summarize and compare worldwide colorectal cancer(CRC) screening recommendations in order to identify similarities and *** A systematic literature search was performed using MEDLINE, EMbASE, Scopus, CENTRAL and ISI Web of knowledge identifying all average-risk CRC screening guideline publications within the last ten years and/or position statements published in the last 2 years. In addition, a hand-search of the webpages of National Gastroenterology Society websites, the National Guideline Clearinghouse, the bMJ Clinical Evidence website,Google and Google Scholar was performed. RESULTS Fifteen guidelines were identified. Six guidelines were published in North America, four in Europe, four in Asia and one from the World Gastroenterology Organization. The majority of guidelines recommend screening average-risk individuals between ages 50 and 75 using colonoscopy(every 10 years), or flexible sigmoidoscopy(FS, every 5 years) or fecal occult blood test(FObT, mainly the Fecal Immunochemical Test, annually or biennially). Disparities throughout the different guidelines are found relating to the use of colonoscopy, rank order between test, screening intervals and optimal age ranges for screening. CONCLUSION Average risk individuals between 50 and 75 years should undergo CRC screening. Recommendations for optimal surveillance intervals, preferred tests/test cascade as well as the optimal timing when to start and stop screening differ regionally and should be considered for clinical decision making. Furthermore, local resource availability and patient preferences are important to increase CRC screening uptake, as any screening is better than none.

关键词： Guidelines Systematic review fecal occult blood test Fecal immunochemical test Colonoscopy Colorectal cancer Screening Flexible sigmoidoscopy

采用Meglumin Diatrizoat进行肝CT延迟4小时扫描的价值

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放射学实践 1987年第4期 161-164页

作者： von T.Rmer b.hamm Ch.Nauert D.Felsenberg K.-J.Wolf 刘经国上海纺建二院

静脉注入团剂造影剂后进行延迟肝CT扫描,可能使健康的和病变的组织之间有较好的鉴别作用。同样,在注入高浓度碘剂4小时后,在健康组织内也只有少量贮积,与病变组织比较,证明延迟CT扫描并没有取得所希望的效果,因而似乎无使用指征。

关键词：造影剂静脉密度 X光乳剂 Meglumin Diatrizoat 肝脏病灶肝实质 CT