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Bioerosion on Late Pleistocene Marine Mollusks:A Paleoclimatological and Paleoecological Comparison of MIS 7 and MIS 5e with Modern Beaches(Río Negro,Argentina)

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Acta Geologica Sinica(english edition) 2022年第4期96卷 1181-1198页

作者： Melisa P.charO Gisela D.charÓ Guillermo ACeÑOLAZA Jose L.CAVALLOTTO Instituto Superior de Correlación Geológica(INSUGeO/CONICeT-UNT)Miguel Lillo 205 4000 TucumánArgentina Laboratorio de Fluidodinámica Departamento de Ingeniería MecánicaFacultad de IngenieríaUniversidad de Buenos AiresPaseo Colón 850C1063ACVCiudad Autónoma de Buenos AiresArgentina Servicio de Hidrografía Naval Av.Montes de Oca 2124C1270ABW Buenos AiresArgentina

The Late Pleistocene littoral ridges of southern South America,especially those of the north of Argentinean Patagonia,contain remains of mollusk shells with bioerosion *** sites from marine isotope stages(2 from MIS 7,4 from MIS 5 e)and five sites from modern beaches from northern Río Negro Province,with 40 taxa(17 bivalves and 23 gastropods)were analyzed,in the area between west of Baliza San Matías and Las Grutas(41°S).Three ichnogenera were identified in deposits of MIS 7:entobia,Gastrochaenolites(Domichnia)and Oichnus(Praedichnia)with one ichnospecies(***).Six ichnogenera were identified in deposits of MIS 5 e:entobia,Meandropolydora,Pinaceocladichnus,Iramena,Caulostrepsis and Oichnus with one ichnospecies(***).Seven ichnogenera were identified from modern beaches:entobia,Meandropolydora,Iramena,Caulostrepsis,Pinaceocladichnus,Gastrochaenolites(Domichnia)and Oichnus(Praedicnia),with two ichnospecies(*** and ***).On this basis,it is inferred that Pleistocene benthic communities were constituted from cheilostome bryzoans and polychaete annelids,together with drilling bivalves,predatory gastropods and overall warm-water species of *** these,Chama iudicai was found on Plicatula gibbosa from MIS 7 and MIS 5 *** record of warm temperature species suggests a higher sea surface temperature(SST)than the present one and/or the influence of the warm southward Brazilian Current affecting the waters of Golfo San Matí*** the modern beaches surveyed,there is an increase in polychaete annelids,cheilostome bryzoans,temperate-cold species and drilling bivalves,as well as sandy substrate species,which together with an increase of Gastrochaenolites and Caulostrepsis,suggest a colder climate due to the greater influence of the Malvinas Current during the Holocene.

关键词： invertebrate paleontology ichnology Bivalvia Gastropoda Polyplacophora bioerosion paleoclimatology paleoecology Quaternary/Holocene Argentina

Riemann Hypothesis, Catholic Information and Potential of events with New Techniques for Financial and Other Applications

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Advances in Pure Mathematics 2021年第5期11卷 524-572页

作者： Prodromos char. Papadopoulos Aristotle University National Hellenic Research Foundation Giannitsa (or Yiannitsa) Greece

In this research we are going to define two new concepts: a) “The Potential of events” (eP) and b) “The Catholic Information” (CI). The term CI derives from the ancient Greek language and declares all the Catholic (general) Logical Propositions (edit_***" width="33" height="21" alt="" />) which will true for every element of a set A. We will study the Riemann Hypothesis in two stages: a) By using the eP we will prove that the distribution of events e (even) and o (odd) of Square Free Numbers (SFN) on the axis Ax(N) of naturals is Heads-Tails (H-T) type. b) By using the CI we will explain the way that the distribution of prime numbers can be correlated with the non-trivial zeros of the function em>ζem>(em>sem>) of Riemann. The Introduction and the Chapter 2 are necessary for understanding the solution. In the Chapter 3 we will present a simple method of forecasting in many very useful applications (e.g. financial, technological, medical, social, etc) developing a generalization of this new, proven here, theory which we finally apply to the solution of RH. The following Introduction as well the Results with the Discussion at the end shed light about the possibility of the proof of all the above. The article consists of 9 chapters that are numbered by 1, 2, …, 9.

关键词： Twin Problem Twin’s Problem Unsolved Mathematical Problems Prime Number Problems Millennium Problems Riemann Hypothesis Riemann’s Hypothesis Number Theory Information Theory Probabilities Statistics Management Financial Applications Arithmetical Analysis Optimization Theory Stock exchange Mathematics Approximation Methods Manifolds economical Mathematics Random Variables Space of events Strategy Games Probability Density Stock Market Technical Analysis Forecasting

Human papillomavirus in squamous cell carcinoma of esophagus in a high-risk population

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World Journal of Gastroenterology 2005年第8期11卷 1200-1203页

作者： Mohammad Farhadi Zahra Tahmasebi Shahin Merat farin Kamangar Dariush Nasrollahzadeh Reza Malekzadeh Digestive Disease Research Center Department of Molecular Biology Cancer Prevention Studies Branch

AIM: To investigate the relation of human papillomavirus (HPV) and esophageal squamous cell carcinoma (eSCC) in Iranian patients as compared to normal controls. MeTHODS: Using MY09/MY11 consensus primers, we compared the prevalence of a HPV L1 gene in tumor tissues from 38 eSCC cases and biopsied tissues from 38 endoscopically normal Iranian individuals. We also compared the presence of HPV16 and HPVA18 in the same samples using type-specific e6/e7 primers. ReSULTS: Fourteen (36.8%) of the 38 eSCC samples but only 5 (13.2%) of the 38 control samples were positive for the HPV L1 gene (P= 0.02). Five (13.2%) of the eSCC samples but none of the control samples were positive for the HPV16 e6/e7 gene (P= 0.05). Three (7.9%) of the eSCC samples and 5 (13.2%) of the control samples were positive for the HPV18 e6/e7 gene (P= 0.71). CONCLUSION: Our data are consistent with HPV DNA studies conducted in other high-risk areas for eSCC. HPV should be considered as a potential factor contributing to the high incidence of eSCC in Iran and other high-incidence areas of the world.

关键词： Papillomavirus Squamous cell carcinoma of esophagus Population

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扰动系统的稳定性检测

应用数学 1996年第2期9卷 199-202页

作者： char.,CK 钟乐凡北京大学数学系

该文给出了一种对于扰动系统的Ｅ一稳定检测方法，对于离散时间系统，这种稳定性检测还可以通过有限步的代数运算完成．

关键词：扰动系统稳定性检测离散时间系统 Shur型检测

On Deficiency of Super edge Magic Labelings for Complete Bipartite Graphs

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On Deficiency of Super Edge Magic Labelings for Complete Bip...

^(18)F-FDG和^(18)F-FeT PeT脑显像诊断垂体腺瘤

2011 2ND International Conference on Innovative Computing and Communication and 2011 Asia-Pacific Conference on Information Technology and Ocean engineering(CICC-ITOe 2011)

作者： Chih-Hsiuan Liu Tao-Ming Wang Ming-I char Department of Applied Mathematics National Chung Hsing University Department of Applied Mathematics Tunghai University

It is known that edge magic labeling can be applied to the arrangement of devices of a wireless network. The concept of edge magic labeling was introduced by A. Kotzig and A. Rosa in 1970. A（p, q）-graph G with p vertices and q edges is called edge magic if there exists a bijective function f : V（G）∪e（G） →{1, 2,..., p + q} such that f（u） + f（v） + f（uv） is constant for any edge uv ∈ e（G）. Moreover, G is called super edge magic if f（V（G）） = {1, 2,..., p}. In 1970 A. Kotzig and A. Rosa also defined the edge-magic deficiency, μ（G）, of a graph G as the minimum number of isolated vertices added to the graph so that the resulting disconnected graph is edge magic. In 1999Figueroa-Centeno et al. introduced and studied similar notion of super edge magic deficiency μs（G） of a graph G for super edge magic labeling. Calculating the deficiency provides with more detailed information regarding related graph labeling. In this paper we completely determine the super edge magic deficiency of complete bipartite graphs μs（Km,n） =（m- 1）（n- 1）, which justifies a conjecture raised by R. Figueroa-Centeno et al. and Hegde et al. independently.

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中华核医学杂志 2003年第5期23卷 263-265,T001页

作者：程欣周前党永红霍力中国医学科学院中国协和医科大学北京协和医院PET中心100730

目的　比较18F 脱氧葡萄糖 (FDG)和18F 酪氨酸 (FeT)PeT显像对垂体腺瘤的诊断价值。方法　正常对照者 7例同期行18F FDGPeT脑显像和13 N NH3 PeT脑血流显像。 2 0例垂体腺瘤患者行18F FDGPeT脑显像 ,其中 10例同期行18F FeTPeT脑显像 ,... 详细信息

目的　比较18F 脱氧葡萄糖 (FDG)和18F 酪氨酸 (FeT)PeT显像对垂体腺瘤的诊断价值。方法　正常对照者 7例同期行18F FDGPeT脑显像和13 N NH3 PeT脑血流显像。 2 0例垂体腺瘤患者行18F FDGPeT脑显像 ,其中 10例同期行18F FeTPeT脑显像 ,并参照近期MRI结果进行分析。 2 0例患者均行经口鼻蝶窦垂体腺瘤切除术 ,术后行病理检查及免疫组织化学分型。结果　①正常对照组垂体18F FDG摄取明显低于周围组织。②对于分泌激素和无分泌功能的垂体腺瘤 ,18F FDGPeT和18F FeTPeT均可显示病灶。③垂体腺瘤在18F FDG显像中多表现为均匀的放射性摄取增高 ,而18F FeT显像则多表现为散在的摄取增高 ,与MRI所示等T1长T2 或稍长T1长T2 信号的肿瘤组织分布相似。④ 7例微腺瘤 18F FDGPeT检出 5例 ,MRI检出 3例。⑤不同激素分泌型和无分泌功能垂体腺瘤的瘤体大小、激素水平与18F FDG或18F FeT显像标准摄取值 (SUV)间无明显相关。结论　18F FDG和18F FeTPeT脑显像均可显示垂体腺瘤。

关键词： ^18F-FDG ^18F-FeT 诊断垂体腺瘤 ^18F-脱氧葡萄糖 ^18F-酪氨酸 PeT显像

CONGeNITAL SOLITARY KIDNeY

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Chinese Medical Journal 1936年第6期50卷 821-826页

作者： H.e.SHIH G.Y.char Division of Urology Department of SurgeryPeiping Union Medical College.

*** solitary kidney is a rare but important urologiccondition which merits careful *** there is no sugges-tion of its presence until an associated anomaly or urinary symptomsarising from disease of the single kidney prompt a careful and thoroughurological *** etiology,diagnosis,prognosis and treatment of this condi-tion are *** cases of congenital solitary kidney are *** operations on a solitary kidney,when undertaken,should be most conservative.

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Synthesis and surface modification of nanophosphorous-based flame retardant agent by continuous flow hydrothermal synthesis

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Particuology 2015年第5期13卷 82-88页

作者： Sherif elbasuney Hosam e.Mostafa School of Chemical engineering Military Technical College

Nanoparticles can provide flame retardance to hosting polymers and act as nano fire extinguishers. Hydroxyapatite （Ca5（OH）（PO4）3）（HA） is not hygroscopic, and is thermally stable up to 800℃, with 18.5 wt% phosphorous content. It is this high phosphorous content that can provide HA with flame retardant properties. In this paper, we report on the continuous synthesis of ultrafine HA using a hydrothermal synthesis technique. The HA surface properties were changed from hydrophilic to hydrophobic by post-synthesis surface modification. The ratio of the HA nanoparticles and an intumescent agent known as exolit AP750 was investigated to yield a self-extinguishing multi-component epoxy nanocomposite for extended application under extreme fire conditions. The HA/AP750/epoxy nanocomposite was able to resist a flame at 1700 oc and self-extinguish after the flame had been removed. The nanocomposite showed an enhanced flammability performance in standard cone calorimetry testing and formed a compact and cohesive protective char layer with a 50% decrease in peak heat released compared with virgin epoxy. Our aim was to establish the use of HA as an effective nanofiller with phosphorous-based flame retardant properties. The surface of this nano fire extinguisher was modified effectively with different surfactants for enhanced compatibility with different polymeric matrices.

关键词： Flame retardancy Phosphorous-based agent Nanocomposites Hydrothermal synthesis Hydroxyapatite

^(18)F-FDG符合线路显像诊断骨转移瘤的价值及与^(99)Tc^m-MDP骨显像的比较

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中华核医学杂志 2003年第5期23卷 268-271页

作者：付占立林景辉范岩王荣福北京大学第一医院核医学科 100034

目的　评价18F 脱氧葡萄糖 (FDG)符合线路显像在骨转移瘤诊断中的价值 ,并与99Tcm 亚甲基二膦酸盐 (MDP)骨显像进行比较。方法　因怀疑恶性肿瘤或骨转移而行18F FDG符合线路显像者 55例 ,41例于18F FDG检查前后 4周内进行了99Tcm MDP全... 详细信息

目的　评价18F 脱氧葡萄糖 (FDG)符合线路显像在骨转移瘤诊断中的价值 ,并与99Tcm 亚甲基二膦酸盐 (MDP)骨显像进行比较。方法　因怀疑恶性肿瘤或骨转移而行18F FDG符合线路显像者 55例 ,41例于18F FDG检查前后 4周内进行了99Tcm MDP全身骨显像。其中 3 0例骨转移瘤患者 ,15例无骨转移瘤 ,10例18F FDG显像示可疑肿瘤直接骨侵犯 (单独进行分析 )。结果　18F FDG符合线路显像和骨显像对骨转移瘤的灵敏度、特异性、阳性预测值、阴性预测值、诊断准确性分别为 10 0 % ,93 % ,97% ,10 0 % ,98%和 95% ,50 % ,75% ,86% ,77% ,前者特异性、阳性预测值、诊断准确性显著高于骨显像 (P =0 0 2 4,0 0 3 5,0 0 0 7) ;18F FDG显像发现 3 0例骨转移瘤患者中的 2 0例有骨外原发或转移肿瘤。 10例18F FDG显像示可疑肿瘤直接骨侵犯患者中 ,4例被证实有骨受累 ,6例无骨受累 ,而骨显像对骨受累情况均作出了正确判断。结论　18F FDG符合线路显像对骨转移瘤的诊断有较高的灵敏度和特异性 ,并能发现骨外原发或转移性肿瘤 ;99Tcm MDP骨显像对骨转移瘤也有较高的灵敏度。

关键词： ^18F-FDG 符合线路显像诊断骨转移瘤 ^99Tc^m-MDP ^18F-脱氧葡萄糖