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Impact of Distance Measures on the Performance of AIS Data Clustering

Computer Systems Science & Engineering 2021年第1期36卷 69-82页

作者： marta Mieczyńska Ireneusz Czarnowski Department of Maritime Telecommunications Gdynia Maritime UniversityMorska 81-8781-225GdyniaPoland Department of Information Systems Gdynia Maritime UniversityMorska 81-8781-225GdyniaPoland

Automatic Identification System(AIS)data stream analysis is based on the AIS data of different vessel’s behaviours,including the vessels’*** the AIS data consists of outliers,noises,or are incomplete,then the analysis of the vessel’s behaviours is not possible or is *** the data consists of outliers,it is not possible to automatically assign the AIS data to a particular *** this paper,a clustering method is proposed to support the AIS data analysis,to qualify noises and outliers with respect to their suitability,and finally to aid the reconstruction of the vessel’s *** this paper,clustering results have been obtained using selected algorithms,including k-means,k-medoids,and fuzzy *** on the clustering results,it is possible to decide on the qualification of data with outliers and on their usefulness in the reconstruction of the vessel *** main aim of this paper is to answer how different distance measures during a clustering process can influence AIS data clustering *** main core question is whether or not they have an impact on the process of reconstruction of the vessel trajectories when the data are *** research question during the computational experiments asked whether or not distance measure influence AIS data clustering *** computational experiments have been carried out using original AIS *** general,the experiment and the results confirm the usefulness of the cluster-based analysis when the data include outliers that are derived from the natural *** is also possible to monitor and to analyse AIS data using clustering when the data include *** computational experiment results confirm that the k-means with Euclidean distance has the best performance.

关键词： AIS SAT-AIS AIS data stream clustering maritime data analysis

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Smoothness of the Functional Law Generated by a Nonlinear SPDE

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Chinese Annals of Mathematics,Series B 2008年第2期29卷 113-120页

作者： marta SANZ-SOL Paul MALLIAVIN Facultat de Matemàtiques Universitat de BarcelonaGran Via 585E-08007 BarcelonaSpain. 10 rue Saint Louis-en-I'IleF-74004 ParisFrance

The authors consider a stochastic heat equation in dimension d=1 driven by an additive space time white noise and having a mild *** is proved that the functional law of its solution is absolutely continuous and posses... 详细信息

关键词： Stochastic heat equation Probability law Absolute continuity Divergence operator Gradient operator

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Weighted Inequalities for Fractional Type Operators with Some Homogeneous Kernels

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Acta Mathematica Sinica,English Series 2013年第3期29卷 449-460页

作者： María Silvina RIVEROS marta URCIUOLO FaMAF-UNC CIEM-CONICET Ciudad Universitaria

In this paper, we study integral operators of the formappropriate weighted BMO and weak type estimates for certain weights satisfying the above inequality. We also give a Coifman type estimate for these operators.

关键词： Fractional operators Calderon-Zygmund operators BMO Muckenhoupt weights

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Changes in hydrological regime in High Arctic non-glaciated catchment in 1979-2020 using a multimodel approach

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Advances in Climate Change Research 2022年第4期13卷 517-530页

作者： Marzena OSUCH Tomasz WAWRZYNIAK marta MAJERSKA Institute of Geophysics Polish Academy of SciencesWarsaw 01-452Poland

Assessing hydrological consequences of climate change at the catchment scale is recently among key problems in *** study focuses on the estimation of changes in the hydrological regime in the Fuglebekken catchment in SW Spitsbergen(Svalbard).For this purpose,50 rainfll-runoff models were calibrated using available hydrometeorological *** models were validated based on archival flow and SWE observations,and proxy data from time-lapse *** models(FLEX-IS,GSM-SOCONT,PRMS,HBV,Nordic HBV,and GR4J)with the best performance were applied to reconstruct the past hydrological conditions and analyse the trends in flow regime in the period *** significant changes at 0.05 level in the flow regime indicators were detected,including the number of days with the active flow during the calendar year(10.8 d per decade),during the mid-May-November period(9.8 d per decade),the date of the first day with the flow(-4.7 d per decade),and the last day with the flow during mid-May-November(8.4 d per decade).A statistically significant increase in runoff was estimated for two periods from mid-May to the end of June and the second part of August till *** changes in the first period result from increases in air temperature and earlier snowmelt-driven *** estimated runoff increase in the second period corresponds to large increases in *** increase in air temperature,earlier disappearance of snow,and decrease in precipitation in July and the first part of August result in runoff *** presented results show that the Fuglebekken‘catchment's hydrological regime has already *** magnitude of the changes is larger compared to catchments located in lower latitudes.

关键词： Hydrological regime Climate change Svalbard High Aretic catchment hydrology Multimodel approach

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UGT76B1 controls the growth-immunity trade-off during systemic acquired resistance

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Molecular Plant 2021年第4期14卷 544-546页

作者： marta Pastorczyk-Szlenkier Pawei Bednarek Institute of Bioorganic Chemistry Polish Academy of SciencesNoskowskiego 12/1461-704 PoznanPoland

Higher plants evolved multiple innate immune systems to combat pathogens present in their living ***,activation of the complex immune responses allocates nutrient resources into biosynthesis of various defense molecules,and this in turn often represses growth and development of the entire *** the years,the significance of the effective coregulation of growth and immunity has been demonstrated with dwarf phenotypes of autoimmune mutant lines of model plants displaying constitutive defense responses(van Wersch et al.,2016).This tightly regulated balance,termed the growthimmunity trade-off,is an important objective in plant breeding,which ultimately aims at plant cultivars that are both highly resistant and efficient in terms of growth and yield(Ning et al.,2017).

关键词： breeding cultivar dwarf

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Digestive and breast cancer patients managed during the first wave of COVID-19 pandemic:Short and middle term outcomes

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World Journal of Methodology 2024年第2期14卷 107-126页

作者： Jacobo Trébol Ana Carabias-Orgaz María Carmen Esteban-Velasco Asunción García-Plaza Juan Ignacio González-Munoz Ana Belén Sánchez-Casado Felipe Carlos Parreno-Manchado marta Eguía-Larrea José Antonio Alcázar-Montero Cirugía General y del Aparato Digestivo Complejo Asistencial Universitario de SalamancaSalamanca 37007SalamancaSpain Cirugía Universidad de SalamancaSalamanca 37007SalamancaSpain Oftalmología Complejo Asistencial Universitario de SalamancaSalamanca 37007SalamancaSpain

BACKGROUND The first wave of coronavirus disease 2019(COVID-19)pandemic in Spain lasted from middle March to the end of June *** population was subjected to lockdown periods and scheduled surgeries were discontinued or reduced during variable *** our centre,we managed patients previously and newly diagnosed with *** established a strategy based on limiting perioperative social contacts,preoperative screening(symptoms and reverse transcriptionpolymerase chain reaction)and creating separated in-hospital COVID-19-free pathways for non-infected *** also adopted some practice modifications(surgery in different facilities,changes in staff and guidelines,using continuously changing personal protective equipment…),that supposed new *** To analyse cancer patients with a decision for surgery managed during the first wave,focalizing on outcomes and pandemic-related *** We prospectively included adults with a confirmed diagnosis of colorectal,oesophago-gastric,liver-pancreatic or breast cancer with a decision for surgery,regardless of whether they ultimately underwent *** analysed short-term outcomes[30-d postoperative morbimortality and severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection]and outcomes after 3 years(adjuvant therapies,oncological events,death,SARS-CoV-2 infection and vaccination).We also investigated modifications to usual *** From 96 included patients,seven didn’t receive treatment that period and four never(3 due to COVID-19).Operated patients:28 colon and 21 rectal cancers;laparoscopy 53.6%/90.0%,mortality 3.57%/0%,major complications 7.04%/25.00%,anastomotic leaks 0%/5.00%,3-years disease-free survival(DFS)82.14%/52.4%and overall survival(OS)78.57%/76.2%.Six liver metastases and six pancreatic cancers:no mortality,one major complication,three grade A/B liver failures,one bile leak;3-year DFS 0%/33.3%and OS 50.0%/33.3%(liver metastases/pancreatic carcinoma).5 g

关键词： COVID-19 SARS-CoV-2 Colon cancer Rectal cancer Breast cancer Liver cancer Pancreatic cancer Gastric cancer Oesophageal cancer Surgery

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Opposite fates of fructose in the development of metabolic syndrome

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World Journal of Gastroenterology 2012年第33期18卷 4478-4480页

作者： marta Alegret Juan C Laguna Department of Pharmacology and Therapeutic Chemistry School of Pharmacy University ofBarcelona Institute of Biomedicine 08028 Barcelona Spain Biomedical Network ResearchCentre Physiopathology of Obesity and Nutrition (CIBERobn)08028 Barcelona Spain

This short review comments on the recently published work of Ishimoto et al regarding the opposing effects of fructokinase C and A isoforms on fructoseinduced metabolic syndrome in mice. The framework for the commentary is the preexisting background of epidemiological and experimental data regarding the association between ingestion of fructose, as present in sweetened beverages, and the development of metabolic syndrome. The work of Ishimoto et al clearly confirms the negative effect of fructose on lipid and glucose metabolism, independently from the amount of energy provided by the ingested sugar. It also confirms the absolute requirement of liver fructose metabolism, driven by fructokinase activity, in order to develop the full spectrum of metabolic syndrome alterations.

关键词： Lipid metabolism Fatty liver Obesity Hyperglycemia Dyslipidemia

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Embedding Image Through Generated Intermediate Medium Using Deep Convolutional Generative Adversarial Network

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Computers, Materials & Continua 2018年第8期56卷 313-324页

作者： Chuanlong Li Yumeng Jiang marta Cheslyar School of Computer and Software Nanjing University of Information Science and TechnologyNing Liu RoadNo.219Nanjing210044China Jiangsu Engineering Centre of Network Monitoring Ning Liu RoadNo.219Nanjing210044China School of Informatics University of EdinburghOld CollegeSouth BridgeEdinburghEH89YLUK

Deep neural network has proven to be very effective in computer vision *** convolutional network can learn the most suitable features of certain images without specific measure functions and outperform lots of traditional image processing *** adversarial network(GAN)is becoming one of the highlights among these deep neural *** is capable of generating realistic images which are imperceptible to the human vision system so that the generated images can be directly used as intermediate medium for many *** promising application of using GAN generated images would be image concealing which requires the embedded image looks like not being tampered to human vision system and also undetectable to most *** synthesizing has drawn lots of attention in computer vision field and is used for image concealing in steganography and *** traditional methods which use synthesized textures for information hiding mainly select features and mathematic functions by human metrics and usually have a low embedding *** paper takes advantage of the generative network and proposes an approach for synthesizing complex texture-like image of arbitrary size using a modified deep convolutional generative adversarial network(DCGAN),and then demonstrates the feasibility of embedding another image inside the generated texture while the difference between the two images is nearly invisible to the human eyes.

关键词： GAN,CNN,texture synthesis steganography watermark image concealing information hiding

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Chinese Sources for AfterWards:From Premodern Poetry,Paintings,and Medical Texts to Modern Novels,Film,and Documentaries

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Chinese Medicine and Culture 2023年第2期6卷 127-138页

作者： marta Hanson Independent Scholar Max Planck Institute for the History of ScienceBerlin 14195Germany

This paper focuses on Chinese sources suggested for a narrative medicine(NM)program,called *** Lauren Small established AfterWards in 2014 and has been coordinating it since out of the Pediatrics Department at Johns Hopkins *** early 2019,she started giving a series of lectures and workshops about AfterWards to Chinese medical educators and clinicians in Beijing and *** created an AfterWards Facilitator’s Guide based on Western-language sources for workshop *** also started to organize with Jiang Yuhong(Peking Union Medical College)a workshop for Chinese colleagues to be held at Johns Hopkins Medicine in October *** invited the author to *** idea was hatched then to develop Chinese source materials following the AfterWards structure for an updated Facilitator’s Guide that Dr Small had initially written.A typical one-hour AfterWards session consists of a specific five-part structure:a literary text or artwork,an associated theme,discussion topics,a writing exercise,and shared *** the content of the program always changes from session to session,the basic structure remains the *** paper summarizes the types of Chinese sources and their related narrative-medicine themes that were originally selected for inclusion in the updated AfterWards Facilitator’s Guide intended for Chinese *** sources about coping with sick family members,aging,and illness ranged from the textual(classical Chinese poems on aging and diagnostic forms for training students)and visual(premodern Chinese paintings and murals of medical encounters)to the fictive(novels)and performative(contemporary Asian-American film in English and Chinese-language film and documentaries).

关键词： Documentaries Films Murals Narrative medicine Novels Paintings Poetry

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Grasping Heaven and Earth(Qian Kun Zai Wo):The Body-as-Technology in Classical Chinese Medicine

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中医药文化(英文) 2023年第3期6卷 233-246页

作者： marta Hanson Independent Scholar Affiliate Max Planck Institute for the History of ScienceBerlin 14195Germany

Shifting focus from the patient’s body to the healer’s body,this essay focuses on how Chinese physicians instrumentalized their bodies to heal(ie,body-as-technology)and their hands to think with(ie,hand-memory techniques or simply,hand mnemonics).When physicians used their hands to memorize concepts related to clinical practice,calculate with time variables,and carry out ritual gestures intended to reduce risk,improve fortune,and even cure,their hands became extensions of their *** essay has three parts that follow the discovery process of the author’s research on hand-memory techniques found in Chinese medical *** first part“Divination and Revelation”explains the significance of how the author first learned about Chinese divination practices that used hand *** second part“Original Frame”introduces the scholarship on arts of memory in Europe that informed interpretations of the earliest hand mnemonics found in Chinese medical *** third part“Expanded Frame”deploys some concepts from cognitive science to help situate Chinese medical hand mnemonics more broadly as an example of extended *** essay concludes with an important distinction:sometimes Chinese healers’hands were used separately from their bodies to think through things and sometimes hand and body had to be integrated in order for the healer’s body-as-technology to act as a therapeutically effective instrument.

关键词： Arts of memory Body-as-technology Extended cognition Hand mnemonics

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