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Recycling process and proto-kimberlite melt metasomatism in the lithosphere-asthenosphere boundary beneath the Amazonian Craton recorded by garnet xenocrysts and mantle xenoliths from the Carolina kimberlite

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Geoscience Frontiers 2022年第5期13卷 89-105页

作者： Fernanda Gervasoni Tiago Jalowitzki Marcelo Peres Rocha Ricardo Kalikowski Weska Eduardo Novais-Rodrigues Rodrigo antonio de Freitas Rodrigues Yannick Bussweiler Elisa soares Rocha Barbosa Jasper Berndt Elton Luiz Dantas Valmir da Silva Souza Stephan Klemme Centro de Engenharias Universidade Federal de Pelotas(UFPel)PelotasBrazil Programa de Pós-graduação em Geociências Universidade Federal do Rio Grande do SulPorto AlegreBrazil Programa de Pós-graduação em Geologia Instituto de GeociênciasUniversidade de Brasília(UnB)BrasíliaBrazil Faculdade de Geociências Universidade Federal do Mato Grosso(UFMT)CuiabáBrazil Institut für Geologie und Mineralogie Universität zu KölnGermany Faculdade de Ciências e Tecnologia Universidade Federal de Goiás(UFG)Aparecida de GoiâniaBrazil Institut für Mineralogie Universität MünsterMünsterGermany

Here we present new data on the major and trace element compositions of silicate and oxide minerals from mantle xenoliths brought to the surface by the Carolina kimberlite,Pimenta Bueno Kimberlitic Field,which is located on the southwestern border of the Amazonian *** also present Sr-Nd isotopic data of garnet xenocrysts and whole-rocks from the Carolina *** xenoliths are mainly clinopyroxenites and *** of the clinopyroxenites were classified as GPP–PP–PKP(garnet-phlogopite peridotite,phlogopite-peridotite,phlogopite-K-richterite peridotite)suites,and two clinopyroxenites(eclogites)and two garnetites are relicts of an ancient subducted *** and pressure estimates yield 855–1102℃ and 3.6–7.0 GPa,*** are enriched in light rare earth elements(LREE)(La_(N)/Yb_(N)=5–62;Ce_(N)/Sm_(N)=1–3;where N=primitive mantle normalized values),they have high Ca/Al ratios(10–410),low to medium Ti/Eu ratios(742–2840),and low Zr/Hf ratios(13–26),which suggest they were formed by metasomatic reactions with CO_(2)-rich silicate *** with high TiO_(2)(>2.0 wt.%),Al_(2)O_(3)(>12.0 wt.%),and FeOt(5.0–13.0 wt.%)resemble those found in the groundmass of kimberlites,lamproites and ***,phlogopite with low TiO_(2)(<1.0 wt.%)and lower Al_(2)O_(3)(<12.0 wt.%)are similar to those present in GPP-PP-PKP,and in MARID(mica-amphibole-rutile-ilmenite-diopside)and PIC(phlogopite-ilmenite-clinopyorxene)*** GPP-PP-PKP suite of xenoliths,together with the clinopyroxene and phlogopite major and trace element signatures suggests that an intense proto-kimberlite melt metasomatism occurred in the deep cratonic lithosphere beneath the Amazonian *** Sr-Nd isotopic ratios of pyrope xenocrysts(G3,G9 and G11)from the Carolina kimberlite are characterized by high ^(143)Nd/^(144)Nd(0.51287–0.51371)and eNd(+4.55 to+20.85)accompanied with enriched ^(87)Sr/^(86)Sr(0.70405–0.71098).These results suggest intera

关键词： Carolina kimberlite K-rich mantle xenoliths Ancient subducted slab Proto-kimberlite melt metasomatism

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A Weighted Average Consensus Approach for Decentralized Federated Learning

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Machine Intelligence Research 2022年第4期19卷 319-330页

作者： Alessandro Giuseppi Sabato Manfredi antonio Pietrabissa Department of Computer Controland Management EngineeringUniversity of Rome La SapienzaRome 00185Italy Department of Electrical Engineering and Information Technology University of Naples Federico ⅡNaples 80125Italy

Federated learning(FedL)is a machine learning(ML)technique utilized to train deep neural networks(DeepNNs)in a distributed way without the need to share data among the federated training *** was proposed for edge computing and Internet of things(IoT)tasks in which a centralized server was responsible for coordinating and governing the training *** remove the design limitation implied by the centralized entity,this work proposes two different solutions to decentralize existing FedL algorithms,enabling the application of FedL on networks with arbitrary communication topologies,and thus extending the domain of application of FedL to more complex scenarios and new *** the two proposed algorithms,one,called FedLCon,is developed based on results from discrete-time weighted average consensus theory and is able to reconstruct the performances of the standard centralized FedL solutions,as also shown by the reported validation tests.

关键词： Federated learning(FedL) deep learning federated averaging(FedAvg) machine learning(ML) artificial intelligence discrete-time consensus distributed systems.

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Glassy dynamics of water at interface with biomolecules: A Mode Coupling Theory test

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Science China(Physics,Mechanics & Astronomy) 2019年第10期62卷 82-86页

作者： antonio Iorio Gaia Camisasca Paola Gallo Dipartimento di Matematica e Fisica Universita Roma TreRome 00146Italy Department of Physics AlbaNova University CenterStockholm UniversityStockholm S-106 91Sweden

We study the slow dynamics of hydration water upon cooling in two different biological aqueous solutions,one containing a molecule of lysozyme and another with trehalose *** particular we test if the glassy behaviour of these solutions fulfils the predictions of the popular Mode Coupling Theory of glassy *** particular we test the Time Temperature Superposition Principle and the matching of the exponents of the *** results confirm that this theory is able to describe the dynamical behaviour of supercooled water also in non ideal cases as the ones under investigation in the region of mild supercooling.

关键词： glassy dynamics aqueous solutions biomolecules Molecular Dynamics

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Data trustworthiness and user reputation as indicators of VGI quality

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Geo-Spatial Information Science 2018年第3期21卷 213-233页

作者： Paolo Fogliaroni Fausto D’antonio Eliseo Clementini Department for Geodesy and Geoinformation Vienna University of TechnologyViennaAustria Department of Industrial and Information Engineering and Economics University of L’AquilaL’AquilaItaly

Volunteered geographic information(VGI)has entered a phase where there are both a substantial amount of crowdsourced information available and a big interest in using it by *** the issue of deciding the quality of VGI without resorting to a comparison with authoritative data remains an open *** article first formulates the problem of quality assessment of VGI *** presents a model to measure trustworthiness of information and reputation of contributors by analyzing geometric,qualitative,and semantic aspects of edits over *** implementation of the model is running on a small data-set for a preliminary empirical *** results indicate that the computed trustworthiness provides a valid approximation of VGI quality.

关键词： Volunteered geographic information data quality trustworthiness reputation

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Sleep apnoea and stroke

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Stroke & Vascular Neurology 2016年第4期1卷 185-191页

作者： Sameer Sharma antonio Culebras Department of Neurology University of CincinnatiCincinnatiOhioUSA Department of Neurology SUNY Upstate Medical UniversitySyracuseNew YorkUSA

Sleep disorders have been known to physicians for a long *** his famous aphorisms,Hippocrates said“Sleep or watchfulness exceeding that which is customary,augurs unfavorably”.Modern medicine has been able to disentangle some of the phenomena that disturb *** the most notable offenders is sleep apnoea that has gained prominence in the past few *** is being proposed as one of the potentially modifiable risk factors for vascular diseases including *** pathological mechanisms linking sleep apnoea to vascular risk factors include hypoxia,cardiac arrhythmias,dysautonomia,impaired glucose tolerance,hypertension,dyslipidaemia and *** this article,we review literature linking sleep apnoea and stroke,including sleep apnoea as a risk factor for primary prevention with the potential to improve outcome after acute stroke and as a secondary risk factor,amenable to modification and hence vascular risk reduction.

关键词： impaired prevention linking

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Liver transplantation for intermediate hepatocellular carcinoma: An adaptive approach

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World Journal of Gastroenterology 2017年第18期23卷 3195-3204页

作者： Marco Biolato Giuseppe Marrone Luca Miele antonio Gasbarrini antonio Grieco Liver Transplant Medicine Gastroenterological Area Gastroenterological and Endocrino Metabolical Sciences Department Fondazione Policlinico Universitario Gemelli Universita’ Cattolica del Sacro Cuore

Hepatocellular carcinoma is becoming an increasing indication for liver transplantation, but selection and allocation of patients are challenging because of organ shortages. Conventional Milan criteria are the reference for the selection of patients worldwide, but many expanded criteria, like University of California San Francisco criteria and up-to-7 criteria, have demonstrated that survival and recurrence results are lower than those for restricted indications. Correct staging is crucial and should include surrogate markers of biological aggressiveness(α-fetoprotein, response to loco-regional treatments). Successful down-staging can select between patients with tumor burden initially beyond transplantation criteria those with a more favorable biology, provided a 3-mo stability in meeting the transplantation criteria. Allocation rules are constantly adjusted to minimize the imbalance between the priorities of candidates with and without hepatocellular carcinoma, and take into account local donor rate and waitlist dynamics. Recently, Mazzaferro et al proposed a benefit-oriented "adaptive approach", in which the selection and allocation of patients are based on their response to non-transplantation treatments: low priority for transplantation in case of complete response, high priority in case of partial response or recurrence, and no listing in case of progression beyond transplantation criteria.

关键词： Milan criteria α-fetoprotein Down-staging Allocation Adaptive approach

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Multispectral Image Processing System Developed in CARTOMORPH Software—NDVI Module

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Advances in Remote Sensing 2018年第2期7卷 91-100页

作者： Tiago Oyan Aguiar Samara Calcado de Azevedo Miriam Maria pedrosa Guilherme Pina Cardim Erivaldo antonio da Silva Department of Cartography Sao Paulo State University(UNESP)Presidente PrudenteBrazil

In this paper, we have evaluated the multispectral module implemented in the CARTOMORPH software, which is a public domain software under development by the mathematical morphology research group at FCT/UNESP. The aim of CARTOMORPH is to provide an open software with feature extraction methods and a library that contains a variety of implemented code (functions) that can be easily operated by users through graphical interface. The multispectral image processing system has been developed to allow feature discrimination by operations between bands from Remote Sensing images. The normalized difference vegetation index (NDVI) was selected to be implemented on CARTOMORPH because of its acknowledged performance for monitoring of vegetation and cartographic applications. The experiments were applied to multispectral bands from Quick Bird image and the results were compared with those provided by the SPRING and ENVI software. Former is a Brazilian free software, developed by National Institute for Space Research-INPE and dedicated to image processing and Geographic Information Systems (GIS) analysis, as well as ENVI, which is a traditional remote sensing image analysis system. The results prove that the implementation of this module is correct, allowing potential usage in the field of cartography and for environmental applications.

关键词： NDVI CARTOMORPH Quick Bird Remote Sensing

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Modulation of cell physiology under hypoxia in pancreatic cancer

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World Journal of Gastroenterology 2021年第28期27卷 4582-4602页

作者： Matias Estaras antonio Gonzalez Department of Physiology Institute of Molecular Pathology BiomarkersUniversity of ExtremaduraCaceres 10003Spain Department of Physiology Cell Biology and Communication Research GroupUniversity of ExtremaduraCaceres 10003Spain

In solid tumors,the development of vasculature is,to some extent,slower than the proliferation of the different types of cells that form the tissue,both cancer and stroma *** a consequence,the oxygen availability is compromised and the tissue evolves toward a condition of *** presence of hypoxia is variable depending on where the cells are localized,being less extreme at the periphery of the tumor and more severe in areas located deep within the tumor ***,the cells do not *** pathways that are critical for cell fate such as endoplasmic reticulum stress,apoptosis,autophagy,and others are all involved in cellular responses to the low oxygen availability and are orchestrated by hypoxia-inducible *** stress and inflammation are critical conditions that develop under *** with changes in cellular bioenergetics,all contribute to cell ***,cell-to-cell interaction is established within the tumor such that cancer cells and the microenvironment maintain a bidirectional ***,the release of extracellular vesicles,or exosomes,represents short and long loops that can convey important information regarding invasion and *** a result,the tumor grows and its malignancy ***,one of the most lethal tumors is pancreatic *** paper reviews the most recent advances in the knowledge of how cells grow in a pancreatic tumor by adapting to *** the physiological processes that help the tumor increase its size and their regulation will be of major relevance for the treatment of this deadly tumor.

关键词： Hypoxia Cancer Tumor Pancreas Proliferation Cell survival

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Set-point Filter Design for a Two-degree-of-freedom Fractional Control System

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IEEE/CAA Journal of Automatica Sinica 2016年第4期3卷 451-462页

作者： Fabrizio Padula antonio Visioli Department of Mathematics and Statistics Curtin University IEEE Department of Mechanical and Industrial Engineering University of Brescia

This paper focuses on a new approach to design(possibly fractional) set-point filters for fractional control *** designing a smooth and monotonic desired output signal,the necessary command signal is obtained via fractional input-output ***,a set-point filter is determined based on the synthesized command *** filter is computed by minimizing the 2-norm of the difference between the command signal and the filter step *** proposed methodology allows the designer to synthesize both integer and fractional setpoint *** pros and cons of both solutions are discussed in *** approach is suitable for the design of two degreeof-freedom controllers capable to make the set-point tracking performance almost independent from the feedback part of the *** results show the effectiveness of the proposed methodology.

关键词： Fractional control systems two-degree-of-freedom control set-point following system inversion

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Laparoscopic sleeve gastrectomy and gastroesophageal reflux

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World Journal of Gastroenterology 2015年第36期21卷 10348-10357页

作者： Fabien Stenard antonio Iannelli Digestive and Oncology Unit Mutualiste Hospital Digestive Unit Archet 2 HospitalUniversity Hospital of Nice Inserm U1065Team 8 "Hepatic complications of obesity" University of Nice Sophia-Antipolis

Bariatric surgery is the only effective procedure that provides long-term sustained weight loss. Sleeve gastrectomy(SG) has emerged over the last few years to be an ideal bariatric procedure because it has several advantages compared to more complex bariatric procedures,including avoiding an intestinal bypass. However,several published follow-up studies report an increased rate of gastroesophageal reflux(GERD) after a SG. GERD is described as either de novo or as being caused by aggravation of preexisting symptoms. However,the literature on this topic is ambivalent despite the potentially increased rate of GERDs that may occur after this common bariatric procedure. This article reviews the mechanisms responsible for GERD in obese subjects as well as the results after a SG with respect to GERD. Future directions for clinical research are discussed along with the current surgical options for morbidly obese patients with GERD and undergoing bariatric surgery.

关键词： Gastroesophageal reflux Sleeve gastrectomy Morbid

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