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npj Computational Materials 2021年第1期7卷 1541-1551页

作者： marco Eckhoff Jörg Behler Universität Göttingen Institut für Physikalische ChemieTheoretische ChemieTammannstrasse 637077 GöttingenGermany Universität Göttingen International Center for Advanced Studies of Energy Conversion(ICASEC)Tammannstrasse 637077 GöttingenGermany

Machine learning potentials have emerged as a powerful tool to extend the time and length scales of first-principles quality ***,most machine learning potentials cannot distinguish different electronic spin arrangements and thus are not applicable to materials in different magnetic *** we propose spin-dependent atom-centered symmetry functions as a type of descriptor taking the atomic spin degrees of freedom into *** used as an input for a high-dimensional neural network potential(HDNNP),accurate potential energy surfaces of multicomponent systems can be constructed,describing multiple collinear magnetic *** demonstrate the performance of these magnetic HDNNPs for the case of manganese oxide,*** method predicts the magnetically distorted rhombohedral structure in excellent agreement with density functional theory and *** efficiency allows to determine the Néel temperature considering structural fluctuations,entropic effects,and *** method is general and is expected to be useful also for other types of systems such as oligonuclear transition metal complexes.

关键词： magnetic symmetry neural

Coal petrology analysis and implications in depositional environments from upper Cretaceous to Miocene:a study case in the Eastern Cordillera of Colombia

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International Journal of Coal Science & Technology 2021年第5期8卷 869-896页

作者： Clara Guatame marco Rincon Servicio Geologico Colombiano diagonal 53 n.°34-53BogotaColombia

The Piedemonte Llanero Basin is located on the eastern side of the Eastern Cordillera of the Colombian *** has been the subject of numerous geological studies carried out for the oil sector,*** study presents the coalpetrographical features of 15 coal seams of four geological formations from Late Cretaceous to Middle Miocene(Chipaque formation,Palmichal group,Arcillas del Limbo formation,and San Fernando formation).Analysis of 33 samples indicates enrichment in vitrinite,while liptinite and inertinite concentrations vary according to the stratigraphic *** indicates that the coal range gradually decreases from highly volatile bituminous C(Chipaque formation)to subbituminous C(San Fernando formation).The microlithotypes with the highest concentrations are clarite and *** composition and coal facies indicate changes in the depositional conditions of the *** precursor peat from Late Cretaceous to Late Paleocene accumulated under limnic conditions followed by telmatic in Late Eocene-Early *** coal facies indices show wet conditions in forest swamps with variations in the flooding surface,influxes of brackish water and good tissue *** tectonic conditions along the Piedemonte Llanero basin is evident,from post-rift to foreland basin,evidenced by oxic and anoxic periods reflected in the maceral composition and its *** coal environment corresponds to an estuarine system started in the Chipaque formation evolving to the lacustrine conditions in the San Fernando formation.

关键词： Eastern cordillera basin Northern Andes Coal Organic petrology

A Theory of the Risk for Empirical CVaR with Application to Portfolio Selection

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Journal of Systems Science & Complexity 2021年第5期34卷 1879-1894页

作者： ARICI Giorgio CAMPI marco C. CARE Algo DALAI marco RAMPONI Federico A. Department of Information Engineering University of Bresciavia Branze 3825123 BresciaItaly.

When decisions are based on empirical observations,a trade-off arises between flexibility of the decision and ability to generalize to new *** this paper,we focus on decisions that are obtained by the empirical minimization of the Conditional Value-at-Risk(CVa R)and argue that in CVa R the trade-off between flexibility and generalization can be understood on the ground of theoretical results under very general assumptions on the system that generates the *** results have implications on topics related to order and structure selection in various applications where the CVa R risk-measure is used.A study on a portfolio optimization problem with real data demonstrates our results.

关键词： Distribution-free results empirical CVa R generalization order selection risk scenario approach

Overlapping approach Proton Pump Inhibitors/Nux vomica-Heel as new intervention for gastro-esophageal reflux management:Delphi consensus study

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World Journal of Gastroenterology 2024年第18期30卷 2467-2478页

作者： Edda Battaglia Luciano Bertolusso marco Del Prete marco Monzani marco Astegiano Gastroenterology Unit ASLTO4Ivrea 10015TurinItaly General Practitioner ASL CN2Alba-Bra 12051CuneoItaly Specialist in Nephrology International Academy of Physiological Regulating Medicine Milan 20100Italy Specialist in Endocrinology Territorial Social and Health Authority of BrianzaMonza 20900Italy Gastroenterology Specialist Retired from Gastroenterology and Hepatology UnitAOU Cittàdella Salute e della ScienzaTurin 10123Italy

BACKGROUND Gastro-esophageal reflux disease(GERD)may affect the upper digestive tract;up to 20%of population in Western nations are affected by ***,histamine H2-receptor antagonists,and Proton Pump Inhibitors(PPIs)are considered the referring medications for ***,PPIs must be managed carefully because their use,especially chronic,could be linked with some adverse *** effective and safe alternative pharmacological tool for GERD is *** the identification of potentially new medications to flank PPIs,it is mandatory to revise and improve good clinical practices even through a consensus *** To optimize diagnosis and treatment guidelines for GERD through a consensus based on Delphi *** The availability of clinical studies describing the action of the multicomponent/multitarget medication Nux vomica-Heel,subject of the consensus,is the basic prerequisite for the consensus itself.A modified Delphi process was used to reach a consensus among a panel of Italian GERD specialists on the overlapping approach PPIs/Nux vomica-Heel as a new intervention model for the management of *** Voting Consensus group was composed of 49 Italian Medical Doctors with different specializations:Gastroenterology,otolaryngology,geriatrics,and general medicine.A scientific committee analyzed the literature,determined areas that required investigation(in agreement with the multiple-choice questionnaire results),and identified two topics of interest:(1)GERD disease;and(2)GERD *** for each of these topics were then formulated and *** Delphi process involved two rounds of questioning submitted to the panel experts using an online *** According to their routinary GERD practice and current clinical evidence,the panel members provided feedback to each questionnaire *** experts evaluated 15 statements and reached consensus on all *** statements regarding the GERD disease showed high levels of

关键词： Gastro-esophageal reflux disease Proton Pump Inhibitors Consensus Nux vomica-Heel Overlapping Decalage

Inter- and intra-population variability of the protein content of femoral gland secretions from a lacertid lizard

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Current Zoology 2017年第6期63卷 657-665页

作者： marco MANGIACOTTI marco FUMAGALLI Stefano SCALI marco A.L. ZUFFI Maddalena CAGNONE Roberta SALVINI Roberto SACCHI Department of Earth and Environmental Sciences University of Pavia Via Taramelli 24 Pavia 1-27100 Italy Museo Civico di Storia Naturale di Milano Corso Venezia 55 Milano 1-20121 Italy Department of Biology and Biotechnology "L. Spallanzani" Biochemistry Unit University of Pavia Via Taramelli 3 Pavia 1-27100 Italy Museo di Storia Naturale Universita di Pisa Via Roma 79 Calci Pisa 1-56011 Italy Department of Molecular Medicine Biochemistry Unit University of Pavia Via Taramelli 3 Pavia 1-27100 Italy

Femoral glands of male lizards produce waxy secretions that are involved in inter- and intraspecific chemical communication. The main components of these secretions are proteins and lipids, the latter having been extensively studied and already associated to male quality. On the opposite, the composition and role of proteins are nearly unknown, the only available information coming from few studies on iguanids. These studies got the conclusion that proteins might have a communicative function, notably they could signal individual identity. A generalization of these findings requires the extension of protein analysis to other lizard families, and the primary detection of some patterns of individual variability. Using the common wall lizard Podarcis muralis as a model species, the protein fraction of the femoral pore secretions was investigated to provide the first characterization of this component in a lacertid lizard and to explore its source of variability, as a first step to support the hypothesized communicative role. Samples of proteins from femoral secretions were collected from 6 Italian populations and subjected to 1-dimensional electrophoresis. The binary vector of the band presence/absence was used to define the individual profiles. Protein fraction is found to have a structured pattern, with both an individual and a population component. Although the former supports the potential communicative role of proteins, the latter offers a double interpretation, phylogenetic or environmental, even though the phylogenetic effect seems more likely given the climatic resemblance of the considered sites. Further studies are necessary to shed light on both these issues.

关键词： chemical communication femoral glands lizards Podarcis muralis proteins SDS-PAGE.

The role of general anesthetics and the mechanisms of hippocampal and extra-hippocampal dysfunctions in the genesis of postoperative cognitive dysfunction

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Neural Regeneration Research 2017年第11期12卷 1780-1785页

作者： marco Cascella Sabrina Bimonte Division of Anesthesia and Pain Medicine Istituto Nazionale Tumori-IRCCS-Fondazione G.Pascale Via Mariano SemmolaNaplesItaly

Postoperative cognitive dysfunction （POCD） is a multifactorial process with a huge number of predisposing, causal, and precipitating factors. In this scenario, the neuroinflammation and the microglial activation play a pivotal role by triggering and amplifying a complex cascade involving the immuno-hormonal acti- vation, the micro circle alterations, the hippocampal oxidative stress activation and, finally, an increased blood-brain barrier＇s permeability. While the role of anesthetics in the POCD＇s genesis in humans is debated, a huge number of preclinical studies have been conducted on the topic and many mechanisms have been proposed to explain the potential neurodegenerative effects of general anesthetics. Probably, the problem concerns on what we are searching for and how we are searching and, surprisingly, preclinical studies showed that anesthetics may also manifest neuroprotective properties. The aim of this paper is to offer an overview on the potential impact of general anesthetics on POCD. Mechanisms of hippocampal and extra-hippocampal dysfunction due to neuroinflammation are discussed, whereas further research perspectives are also given.

关键词： neuroinflammation microglial activation dementia anesthesia neurodegeneration neuroprotection

Nickel Catalyzed Functionalization of Allenes

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Chinese Journal of Chemistry 2019年第5期37卷 431-441页

作者： Yang Liu marco Bandini Dipartimento di Chimica "G. Ciamician" Alma Mater Studiorum - Universita di Bologna via Selmi 2 4016 Bologna Italy

What is the most favorite and original chemistry developed in your research group?The stereoselective gold catalyzed manipulation of in doles with *** do you get into this specific field? Could you please share some experiences with our readers?Step-by-step. Specifically, by merging our background on catalytic alkylation of arenes with an emerging area (at that time) such as homogeneous gold *** is the most important personality for a researcher?? Leadership, attitude in motivating early-stage scientists and capability of combining scientific inputs of different heritage for a single and ultimate goal.

关键词： favorite chemistry goal

HIGH-ORDER WENO SIMULATIONS OF THREE-DIMENSIONAL RESHOCKED RICHTMYER-MESHKOV INSTABILITY TO LATE TIMES:DYNAMICS,DEPENDENCE ON INITIAL CONDITIONS,AND COMPARISONS TO EXPERIMENTAL DATA

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Acta Mathematica Scientia 2010年第2期30卷 595-620页

作者： Oleg Schilling marco Latini Lawrence Livermore National Laboratory Applied and Computational Mathematics California Institute of Technology CNA Corporation

The dynamics of the reshocked multi-mode Richtmyer-Meshkov instability is investigated using 513 × 257^2 three-dimensional ninth-order weighted essentially nonoscil- latory shock-capturing simulations. A two-mode initial perturbation with superposed ran- dom noise is used to model the Mach 1.5 air/SF6 Vetter-Sturtevant shock tube experiment. The mass fraction and enstrophy isosurfaces, and density cross-sections are utilized to show the detailed flow structure before, during, and after reshock. It is shown that the mixing layer growth agrees well with the experimentally measured growth rate before and after reshock. The post-reshock growth rate is also in good agreement with the prediction of the Mikaelian model. A parametric study of the sensitivity of the layer growth to the choice of amplitudes of the short and long wavelength initial interfacial perturbation is also pre- sented. Finally, the amplification effects of reshock are quantified using the evolution of the turbulent kinetic energy and turbulent enstrophy spectra, as well as the evolution of the baroclinic enstrophy production, buoyancy production, and shear production terms in the enstrophy and turbulent kinetic transport equations.

关键词： Richtmyer-Meshkov instability reshock mixing properties weighted essen-tially nonoscillatory (WENO) method

The roles of microglia in viral encephalitis:from sensome to therapeutic targeting

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Cellular & Molecular Immunology 2021年第2期18卷 250-258页

作者： Chintan Chhatbar marco Prinz Institute of Neuropathology Medical FacultyUniversity of FreiburgFreiburgGermany Center for Basics in NeuroModulation(NeuroModulBasics) Faculty of MedicineUniversity of FreiburgFreiburgGermany Signalling Research Centres BIOSS and CIBSS University of FreiburgFreiburgGermany

Viral encephalitis is a devastating disease with high mortality,and survivors often suffer from severe neurological *** are innate immune cells of the central nervous system(CNS)parenchyma whose turnover is reliant on local *** express a diverse range of proteins,which allows them to continuously sense the environment and quickly react to *** inflammatory conditions such as CNS viral infection,microglia promote innate and adaptive immune responses to protect the ***,during viral infection,a dysregulated microglia-T-cell interplay may result in altered phagocytosis of neuronal synapses by microglia that causes neurocognitive *** this review,we summarize the current knowledge on the role of microglia in viral encephalitis,propose questions to be answered in the future and suggest possible therapeutic targets.

关键词： microglial activation viral encephalitis neurocognitive issues purinergic signaling PRR signaling

Ritt's theorem and the Heins map in hyperbolic complex manifolds

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Science China Mathematics 2005年第z1期48卷 238-243页

作者： marco Abate Filippo Bracci Dipartimento di Matematica Università di Pisa Largo Pontecorvo 556127 PisaItalyDipartimento di Matematica Università di Roma "Tor Vergata"Via della Ricerca Scientifica00133 RomaItaly

Let X be a Kobayashi hyperbolic complex manifold, and assume that X does not contain compact complex submanifolds of positive dimension (e.g., X Stein). We shall prove the following generalization of Ritt's theorem: every holomorphic self-map f: X →X such that f(X) is relatively compact in X has a unique fixed point τ(f) ∈ X, which is attracting. Furthermore, we shall prove that τ(f) depends holomorphically on f in a suitable sense, generalizing results by Heins, Joseph-Kwack and the second author.

关键词： holomorphic self-map, fixed point, Wolff point, Ritt's theorem, Heins map, Stein manifold.