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Sampling-Based Approaches to Estimating Two-dimensional Large Wood Area from UAS Imagery

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Journal of Geographic Information System 2022年第6期14卷 571-588页

作者： Matthew I. Barker Jonathan d. Burnett Francisco Mauro Gutiérrez Steven M. Wondzell Michael G. Wing Forest Engineering Resources and Management Department College of Forestry Oregon State University Corvallis OR USA USdA Forest Service Pacific Northwest Research Station Corvallis OR USA EiFAB—iuFOR Campus Duques de Soria s/n Universidad de Valladolid Soria Spain

Large in-stream wood (LW) is a critical component of riparian systems that increases heterogeneity of flow regimes a.d.provides high quality habitat for salmonids a.d.other fishes. We present four sampling-based methods to estimate two-dimensional LW for a 61-hectare river restoration project on the South Fork McKenzie River near Rainbow, OR (USA). We manually delineated LW area, from unoccupied aircraft systems (UAS) multispectral imagery for 40 ra.d.mly selected 51.46 m2 hexagonal plots. Seven auxiliary variables were extracted from the imagery a.d.imagery derivatives to be incorporated in four estimators by summarizing spectral statistics for each plot including Ra.d.m forest (RF) classification of segmented imagery (cohen’s kappa = 0.75, balanced accuracy = 0.86). The four estimators were: difference estimator, simple linear regression estimator with one auxiliary variable, general regression estimator with seven auxiliary variables, a.d.simple ra.d.m sample without replacement. We assessed variance of the estimators a.d.found that the simple ra.d.m sample without replacement produced the largest estimate for LW area a.d.widest confidence interval (17,283 m2, 95% CI 10,613 - 23,952 m2) while the generalized regression approach resulted in the smallest estimate a.d.narrowest confidence interval (16,593 m2, 95% CI 13,054 - 20,133 m2). These methods facilitate efficient estimates of critical habitat components, that are especially suited to efforts that seek to quantify large amounts of these components through time. When combined with traditional sampling methods, classified imagery acquired via UAS promises to enhance the temporal resolution of the data products associated with restoration efforts while minimizing the necessity for potentially haza.d.us field work.

关键词： UAS Large in-Stream Wood Sampling Image Classification River Restoration

华蟾素治疗肝癌、肺癌、胰腺癌的Ⅰ期临床研究:初步报道

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中国癌症杂志 2007年第5期17卷 376-379页

作者：孟志强沈晔华杨培英 Robert Newman 贝文英张颖葛勇前 Lorenzo cohen Razelle Kurzrock 刘鲁明复旦大学附属肿瘤医院国际整合医学肿瘤中心复旦大学上海医学院肿瘤学系 department of Experimental Therapeutics The University of Texas M.D.Anderson Cancer CenterTX77030 department of Behavioral Science The University of Texas M.D.Anderson Cancer CenterTX77030 Phase I Program Division of Cancer MedicineThe University of Texas M.D.Anderson Cancer CenterTX77030

背景与目的:华蟾素目前广泛应用于肿瘤的治疗中,由于在80年代上市,未进行临床Ⅰ期研究,无法确定其最大耐受剂量。因此本文旨在观察华蟾素治疗肝细胞癌、肺癌和胰腺癌的最大耐受剂量和不良反应,同时评价治疗疗效。方法:Ⅲ、Ⅳ期肝细胞癌... 详细信息

背景与目的:华蟾素目前广泛应用于肿瘤的治疗中,由于在80年代上市,未进行临床Ⅰ期研究,无法确定其最大耐受剂量。因此本文旨在观察华蟾素治疗肝细胞癌、肺癌和胰腺癌的最大耐受剂量和不良反应,同时评价治疗疗效。方法:Ⅲ、Ⅳ期肝细胞癌、非小细胞肺癌和胰腺癌接受华蟾素治疗,采用静脉滴注,连续14 d,21 d为一疗程。如果没有出现剂量限制性毒性,治疗将持续2个疗程。剂量递增的方案为:10、20、40、60、90和120 m l/(m2.d)。结果:入组15例患者(每个剂量组为3例)中,11例为肝癌,2例胰腺癌和2例肺癌。第五剂量组结束时没有发现剂量限制性毒性(dLT)。其中14例患者可评价疗效,6例(42.9%)为Sd,8例(57.1%)为Pd。在第一剂量组中,1例肝癌患者肿瘤缩小20%并维持11个月。结论:本研究最高剂量达到常规剂量的8倍,尚未出现剂量限制性毒性。部分患者获得了肿瘤缩小或稳定的疗效。

关键词：华蟾素 Ⅰ期临床肝癌非小细胞肺癌胰腺癌

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抗磷脂综合征诊疗指南

国外医学（输血及血液学分册） 2004年第5期27卷 385-390页

作者： Greaves M cohen H Machin SJ Mackie I 白艳艳王兆钺英国血液学标准委员会

静脉血栓主要指深静脉血栓形成(deep vein thrombosis,dVT),最常见的部位为腓肠肌静脉,其次为股静脉。深静脉血栓形成相当多见,在美国人群的年发病率为0.1％,每年有超过20万人患dVT,大约10％的dVT患者发生肺栓塞。欧美国家对dVT的诊治... 详细信息

静脉血栓主要指深静脉血栓形成(deep vein thrombosis,dVT),最常见的部位为腓肠肌静脉,其次为股静脉。深静脉血栓形成相当多见,在美国人群的年发病率为0.1％,每年有超过20万人患dVT,大约10％的dVT患者发生肺栓塞。欧美国家对dVT的诊治与病因研究做了大量的工作,特别是近年来随着临床检验技术与分子生物学的发展,易栓症的各种发病机制已相继发现。约一半的易栓症患者的病因可被确定。我国尚无dVT的统计资料,一般的印象是低于西方人群,但临床病例日益增多,有的医院已建立了专科病房。总的来讲,我国在心脑血管疾病方面做的工作较多,但对dVT的研究还处于早期阶段,在深度与广度上与国际水平还有较大的距离。另一方面,中国人易栓症发生情况与西方人似有较大的差别。因子VLeiden仅发现两例,凝血酶原G20210A变异尚未见报导。近年来我国血液学会对静脉血栓栓塞的诊断与治疗提出了一系列的指导意见,我们组织翻译了有关资料供有关医务人员参考,以期进一步提高我国dVT的诊断与防治水平,并希望对确定我国dVT诊断与治疗的原则及发展规划有一定的意义。我们将分5个专题介绍这些指导意见,本期介绍的'抗磷脂综合征诊疗指南';'有症状门诊病人深静脉血栓形成的诊断,临床评价和d-二聚体分析可能减少对影像学诊断的需要'。

关键词： dVT 易栓症诊断诊疗指南抗磷脂综合征深静脉血栓形成患者指导意见中国下期

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婴儿和年长儿童输血指征(续)

国际输血及血液学杂志 2004年第1期27卷 82-87页

作者： Gibson BES,Bolton-Maggs PHB,Pamphilon d,Roberts I,Todd A,Rodeck C,durbin duguid J,Boulton F,cohen H,McClella.d.dBL,Rowley M,Smith N,Turner G,洪缨英国血液学输血工作委员会英国血液学输血工作委员会英国血液学输血工作委员会英国血液学输血工作委员会成都市血液中心英国血液学输血工作委员会英国血液学输血工作委员会英国血液学输血工作委员会英国血液学输血工作委员会英国血液学输血工作委员会英国血液学输血工作委员会英国血液学输血工作委员会英国血液学输血工作委员会英国血液学输血工作委员会

5 对造血干细胞移植(SCT)、再生障碍性贫血和恶性肿瘤的输血支持5.1 一般观点经高剂量化疗/放疗治疗或所有再生障碍性贫血儿童,可能在将来的某个时候作为SCT的候选人。普遍认为制品白细胞去除低于 5×10～6/单位,CMV 是安全的(见 1.1... 详细信息

5 对造血干细胞移植(SCT)、再生障碍性贫血和恶性肿瘤的输血支持5.1 一般观点经高剂量化疗/放疗治疗或所有再生障碍性贫血儿童,可能在将来的某个时候作为SCT的候选人。普遍认为制品白细胞去除低于 5×10～6/单位,CMV 是安全的(见 1.1.3)。并非所有SCT中心同意。

关键词：输注辐照未足月输血指征心脏外科手术心脏手术浓缩血小板儿童供者血型

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儿童患者的睑角结膜炎

美国医学会眼科杂志（中文版） 2006年第4期18卷 251-252页

作者： Kristin M. Hammersmith Elisabeth J. cohen Timothy d. Blake Peter R. Laibson Christopher J. Rapuano 汤涌（译）

目的：以三期角膜试验的儿童人群为对象评估该人群中睑角结膜炎的发病率，病史，症状，临床体征和治疗结果。

关键词：睑角结膜炎儿童患者临床体征发病率人群

Spectroscopy of individual bipolar molecular heterojunctions using scanning tunneling microscopy

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Spectroscopy of individual bipolar molecular heterojunctions...

HIV相关认知功能障碍的疾病负担:全脑成像测定研究

第18届国际真空大会

作者： Ryan Yamachika.d.niel Wegner Yasaman Bahri Georgy Samsonidze Marvin L. cohen Steven G. Louie T. don Tilley Rachel A. Segalman Michael F. Crommie department of Physics University of California at BerkeleyMaterials Science DivisionLawrence Berkeley National Laboratory Chemical Science division Lawrence Berkeley National Laboratory department of Chemical Engineering University of California at Berkeley Department of ChemistryUniversity of California at Berkeley

Bipolar molecules incorporating donor a.d.acceptor components within a single molecule provide new device opportunities due to their intrinsic behavior as nanoscale p-n heterojunctions. The suitability of such molecules for photovoltaic applications depends on many factors, including the energy a.d.spatial distribution of molecular orbitals, the influence of environment, how the molecules are assembled, a.d.optical excitation response. Here we report a.d.rect characterization of the local electronic structure of the bipolar molecule bithiophene naphthalene diimide （BNd）. Using scanning tunneling spectroscopy, we were able to study the internal electronic structure of individual BNd molecules on a thin insulating layer of NaCl. We find that BNd molecules exhibit type II heterojunction behavior with orbital energy shifts occurring over subnanometer intramolecular interface distances. At higher coverage on metal substrates BNd molecules with different bridge structures self-assemble into 1-d molecular chains. Our experimental results can be understood through the use of first-principle theoretical modeling, a.d.provide new insights into how these molecular systems might be optimized.

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世界核心医学期刊文摘（神经病学分册） 2005年第5期1卷 40-41页

作者： Ragin A.B. Storey P. cohen B.A. 李宏建 department of Radiolo gy 676 N. St. Clair 1400 Chicago IL 60611 United States Dr.

Objective: To study whole-brain MR measures derived from diffusion tensor i maging a.d.magnetization transfer imaging(MTI) for the in vivo assessment of cum ulative neuropathologic changes in HIV a.d.to evaluate the quantitative imaging strategies with respect to cognitive status measures including the severity of d ementia a.d.the degree of impairment in specific cognitive domains including att ention, memory, constructional abilities, a.d.motor speed. Methods: Quantitative whole-brain measurements, including fractional anisotropy (FA), apparent diff usion coefficient (AdC), a.d.magnetization transfer ratio (MTR), were derived fr om histograms a.d.compared in HIV a.d.control participants. Relationships betwee n the MR a.d.cognitive status measures were examined. Results: Wholebrain FA a.d.MTR were reduced in patients with HIV a.d.correlated with dementia severity. Wh ole-brain MTR a.d.AdC were correlated with psychomotor deficits. Evaluation of relationships between the studied MR measures indicated a correlation between a.d. a.d.MTR; FA was not correlated with either AdC or MTR. Conclusions: Findings from this investigation support the use of quantitative whole-brain MR measure s for evaluation of disease burden in HIV. Reductions in whole-brain fractiona l anisotropy a.d.magnetization transfer ratio (MTR) distinguished HIV a.d.contro l subjects, a.d.these measures were associated with dementia severity. Relations hips were identified between whole-brain MTR a.d.apparent diffusion coefficien t a.d.psychomotor deficits. Combining these quantitative strategies in neuroimag ing examinations may provide more comprehensive information concerning ongoing c hanges in the brains of HIV patients.

关键词： HIV相关脑成像磁化转移率磁化传递成像精神运动性神经病理学构建能力表观弥散系数弥散张量成像认知范围

药物代金券对P2Y12抑制剂使用和心肌梗死患者主要不良心血管事件的影响:ARTEMIS随机临床试验

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中华高血压杂志 2019年第2期27卷 178-178页

作者：刘青叶鹏 Wang TY Kaltenbach LA Cannon CP Fonarow GC Choudhry NK Henry Td cohen dJ Bha.d.ry d Khan Nd Anstrom KJ Peterson Ed

尽管有指南推荐,但许多患者比心肌梗死后推荐的1年更早停止P2Y12抑制剂治疗,并且未充分利用更高效的P2Y12抑制剂。医药成本经常被用来解释这两种观察结果。本研究旨在确定药物代金券是否会增加P2Y12抑制剂持久性使用,并降低主要不良心... 详细信息

尽管有指南推荐,但许多患者比心肌梗死后推荐的1年更早停止P2Y12抑制剂治疗,并且未充分利用更高效的P2Y12抑制剂。医药成本经常被用来解释这两种观察结果。本研究旨在确定药物代金券是否会增加P2Y12抑制剂持久性使用,并降低主要不良心血管事件(major adverse ca.d.ovascular events,MACE)的风险。在收治成人急性心肌梗死患者的301家医院中进行集群随机临床试验(2015年6月5日至2016年9月30日);患者出院后随访1年(随访截止日期为2017年10月23日),对MACE进行盲法判定;根据临床医生的判断,选择是否使用P2Y12抑制剂。

关键词：心肌梗死患者不良心血管事件 P2Y12 随机临床试验抑制剂药物 MACE 临床医生

Issues a.d.Opportunities in Exotic Hadrons

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Chinese Physics C 2016年第4期 14-27页

作者： R.A.Briceo T.d.cohen S.Coito J.J.dudek E.Eichten C.S.Fischer M.Fritsch W.Gradl A.Jackura M.Kornicer G.Krein R.F.Lebed F.A.Machado R.E.Mitchell C.J.Morningstar M.Pea.d.n M.R.Pennington K.Peters J.M.Richa.d.C.P.Shen M.R.Shepherd T.Skwarnicki E.S.Swanson A.P.Szczepaniak C.Z.Yuan Thomas Jefferson National Accelerator Facility department of Physics Old Dominion University Maryla.d.Center for Fundamental Physics University of Maryland Institute of Modern Physics CAS

The last few years have been witness to a proliferation of new results concerning heavy exotic hadrons.Experimentally, many new signals have been discovered that could be pointing towa.d. the existence of tetraquarks,pentaquarks, a.d.other exotic configurations of quarks a.d.gluons. Theoretically, advances in lattice field theory techniques place us at the cusp of understa.d.ng complex coupled-channel phenomena, modelling grows more sophisticated, a.d.effective field theories are being applied to an ever greater range of situations. It is thus an opportune time to evaluate the status of the field. In the following, a series of high priority experimental a.d.theoretical issues concerning heavy exotic hadrons is presented.

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