检索结果-南通市图书馆

Morse Index of Multiple Blow-Up Solutions to the Two-Dimensional Sinh-Poisson Equation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Analysis in Theory and Applications 2022年第1期38卷 26-78页

作者： ruggero Freddi Sbai Universita di Roma"La Sapienza"Via Antonio Scarpa14Palazzina E00161 RomaItaly

In this paper we consider the Dirichlet problem■where p is a small parameter andΩis a C^(2)bounded domain in R^(2).In[1],the author proves the existence of a m-point blow-up solution u_(p)jointly with its asymptotic *** compute the Morse index of up in terms of the Morse index of the associated Hamilton function of this *** addition,we give an asymptotic estimate for the first 4m eigenvalues and eigenfunctions.

关键词： Morse index sinh-Poisson equation eigenvalues estimates

Effect of dietary magnolia bark extract supplementation in finishing pigs on the oxidative stability of meat

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2023年第1期14卷 200-211页

作者： ruggero Menci Hajer Khelil‑Arfa Alexandra Blanchard Luisa Biondi Marco Bella Alessandro Priolo Giuseppe Luciano Antonio Natalello Dipartimento Di Agricoltura Alimentazione e Ambiente(Di3A)University of CataniaVia Valdisavoia 595123 CataniaItaly. Pancosma ADM A One Business Center1180 RolleSwitzerland.

Background:Magnolia bark extract(MBE)is a natural supplement with antioxidant,anti-inflammatory,and antimicrobial *** properties suggest that the dietary supplementation in livestock could improve the quality of ***,the aim of this study was to investigate,for the first time,the effect of dietary MBE supplementation(0.33 mg/kg)in finishing pigs on the oxidative stability of *** stability is of paramount importance for pork,as it affects storage,retail,and consumer *** the purpose,the fatty acid profile,cholesterol,fatsoluble vitamins,antioxidant enzymes(catalase,glutathione peroxidase,and superoxide dismutase),non-enzymatic antioxidant capacity(TEAC,FRAP,and Folin-Ciocalteu assays),color stability,and lipid stability of pork were ***:Concerning carcass characteristics,dietary MBE did not affect cold carcass yield,but reduced(P=0.040)the chilling weight *** meat from pigs fed MBE had a lower(P=0.031)lightness index than the control *** effect on intramuscular fat,cholesterol,and fatty acid profile was *** MBE did not affect the content of vitamin E(α-tocopherol andγ-tocopherol)in pork,whereas it reduced(P=0.021)the retinol *** catalase activity was 18%higher(P=0.008)in the meat from pigs fed MBE compared with the control *** MBE supplementation reduced(P=0.039)by 30%the thiobarbituric acid reactive substances(TBARS)in raw pork over 6 d of aerobic refrigerated ***,no effect on lipid oxidation was observed in cooked ***,the meat from pigs fed MBE reduced Fe3+-ascorbate catalyzed lipid oxidation in muscle homogenates,with a lower(P=0.034)TBARS value than the control group after 60 min of ***:Dietary MBE supplementation in finishing pigs delayed the lipid oxidation in raw *** effect was combined with an increased catalase *** results suggest that dietary MBE could have implications for improving the shelf-life of pork

关键词： Antioxidant capacity Antioxidant enzyme Color Fatty acid Lipid oxidation Plant extract Pork Shelf-life TBARS Vitamin

Limitations of the Special and General Relativities and Their Isotopic Generalizations

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Engineering and Electronics 1995年第4期6卷 155-174页

作者： ruggero M. santilli (Istituto per la Ricerca di Base, Castello Principe Pignatelli, I-86075 Monteroduni (IS), Molise, Italy Istituto per la Ricerca di Base Castello Principe Pignatelli I-86075 Monteroduni (IS) Molise Italy

The scientific scene of this century has been dominated by the special and general relativities. In this paper we first recall that these relativities were not conceived for unlimited physical conditions, but solely for exterior problems (motion of point-like test bodies in the homogeneous and isotropic vacuum). We then show that the relativities are inapplicable (rather than violated) for the more general interior problems (motion of extended test bodies within inhomogeneous and anisotropic physical media) on numerous, independent, topological, geometric, analytic and other grounds. We also outline the rather numerous problematic aspects of general relativity for exterior problems in vacuum, while the problematic aspects of the special relativity in vac- uum are treated elsewhere in this volume. We also point our rather serious insufficiencies of the special and general relativities for an effective representation of antimatter, beginning at a classicalwastrophysical level and then continuing at the operator-particle level. The paper ends with a brief outline of the so-called isotopic generalization of the special and general relativities initiated by this author back in 1978 when at Harvard University under support from the U. S. Department of Energy, and subsequently studied by a number of mathematicians, theoreticians and experimentalists. These isotopic studies are presented as an indication of the true scientific renaissance in mathematics, physics, superconductivity and other fields which has been stimulated by the limitations and problematic aspects of the special and general relativities. These studies are coordinated by the Istituto per la Ricerca di Base in Italy. All scholars interested in truly fundamental advances in mathematics, physics, superconductivity and other disciplines are encouraged to participate in this collegial ef- fort.

关键词： Relativities Isotopies Genotopies.

Recent Theoretical and Experimental Evidence on the Apparent Synthesis of the Neutron from Protons and Electrons

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Engineering and Electronics 1995年第4期6卷 175-197页

作者： ruggero M. santilli (Istituto per la Ricerca di Base, Castello Principe Pignatelli,I-86075 Monteroduni (IS), Molise, Italy Istituto per la Ricerca di Base Castello Principe Pignatelli 1-86075 Monteroduni (IS) Molise Italy

Recent experiments have provided direct evidence on the apparent existence of the synthesis of the neutron from a proton and an electron according to the reaction p+e→n+v. much along Rutherford's original conception of the neutron. These findings have received indirect, yet significant experimental confirmations in the Bose-Einstein correlation, the behaviour of the meanlife of unstable hadrons with speed, superconductivity, and other fields, which are such to warrant additional studies. In this paper we present a quantitative theoretical study on the apparent tendency of all massive particles to form a bound state at distances equal or smaller than their wavepackets which is enhanced at low energy. The study is centrally dependent on the isominkowskian geometrization of the mutual wave-overlapping and related isopoincaré symmet- ry proposed by this author back in 1983. While prohibited in the conventional Minkowski space under the conventional Poincare' symmetry, the synthesis herein considered become possible under our covering isotopic formulations thanks to new renormalizations of intrinsic characteristics of particles originating from nonlocal and nonhamitonian effects in mutual waver-overlappings. If experimenatlly confirmed, the studies here submitted would therefore imply that, not only the neutron can be produced via the proton-electron synthesis, but all unstable hadrons can be artificially produced vin the synthesis of ligther hadrons usually selected in the decay with the lowest mode, which would then acquire the meaning of tunnel effect of the constituents. Comparison and compatibility with conventional quark models are also considered for detailed study elsewhere.

关键词： Electrosynthesis of neutron Isodirac equation Isopoincaré symmetry.

Tomography of a simply magnetized toroidal plasma

在线全文

学校读者我要写书评

暂无评论

Plasma Science and Technology 2018年第2期20卷 87-96页

作者： ruggero BARNI Stefano CALDIROLA Luca FATTORINI Claudia RICCARDI Dipartimento di Fisica G.Occhialini Università degli Studi di Milano-Bicocca piazza della Scienza 3 1-20126 Milano Italy Max Planck Institut fur Plasmaphysik Boltzmann Strasse 2 D-85748 Garching Germany

Optical emission spectroscopy is a passive diagnostic technique,which does not perturb the plasma *** particular,in a hydrogen plasma,Balmer-alpha（Hα） emission can be easily measured in the visible range along a line of sight from outside the plasma *** emission lines in the visible spectral range from hydrogen atoms and molecules can be exploited too,in order to gather complementary pieces of information on the plasma *** allows us to capture bi-dimensional *** propose to adopt an emission spectroscopy tomography for studying the transverse profiles of magnetized plasmas when Abel inversion is not *** experimental campaign was carried out at the Thorello device,a simple magnetized *** characteristics of the profile extraction method,which we implemented for this purpose are discussed,together with a few results concerning the plasma profiles in a simply magnetized torus configuration.

关键词： optical emission spectroscopy magnetized plasma simply magnetized torus plasma diagnostics

3D floor plan recovery from overlapping spherical images

在线全文

学校读者我要写书评

暂无评论

Computational Visual Media 2018年第4期4卷 367-383页

作者： Giovanni Pintore Fabio Ganovelli ruggero Pintus Roberto Scopigno Enrico Gobbetti CRS4 Visual Computing Group CNR-ISTI Visual Computing Group

We present a novel approach to automatically recover, from a small set of partially overlapping spherical images, an indoor structure representation in terms of a 3D floor plan registered with a set of 3D environment maps. We introduce several improvements over previous approaches based on color and spatial reasoning exploiting Manhattan world priors. In particular, we introduce a new method for geometric context extraction based on a 3D facet representation,which combines color distribution analysis of individual images with sparse multi-view clues. We also introduce an efficient method to combine the facets from different viewpoints in a single consistent model, taking into the reliability of the facet information. The resulting capture and reconstruction pipeline automatically generates 3D multi-room environments in cases where most previous approaches fail, e.g., in the presence of hidden corners and large clutter, without the need for additional dense 3D data or tools. We demonstrate the effectiveness and performance of our approach on different real-world indoor scenes. Our test data is available to allow further studies and comparisons.

关键词： indoor reconstruction spherical panoramic cameras 360 degree photography multi-room environments

A systematic approach to generating accurate neural network potentials:the case of carbon

在线全文

学校读者我要写书评

暂无评论

npj Computational Materials 2021年第1期7卷 463-475页

作者： Yusuf Shaidu Emine Küçükbenli ruggero Lot Franco Pellegrini Efthimios Kaxiras Stefano de Gironcoli Scuola Internazionale Superiore di Studi Avanzati TriesteItaly The Abdus Salam International Centre for Theoretical Physics TriesteItaly John A.Paulson School of Engineering and Applied Sciences Harvard UniversityCambridgeMAUSA Laboratoire de Physique de l’École Normale Supérieure UniversitéPSLCNRSSorbonne UniversitéUniversitéde ParisParisFrance Department of Physics Harvard UniversityCambridgeMAUSA CNR-IOM DEMOCRITOS Istituto Officina dei MaterialiTriesteItaly

Availability of affordable and widely applicable interatomic potentials is the key needed to unlock the riches of modern materials *** neural network-based approaches for generating potentials are promising;however,neural network training requires large amounts of data,sampled adequately from an often unknown potential energy *** we propose a selfconsistent approach that is based on crystal structure prediction formalism and is guided by unsupervised data analysis,to construct an accurate,inexpensive,and transferable artificial neural network *** this approach,we construct an interatomic potential for carbon and demonstrate its ability to reproduce first principles results on elastic and vibrational properties for diamond,graphite,and graphene,as well as energy ordering and structural properties of a wide range of crystalline and amorphous phases.

关键词： neural artificial network

A self-employed taxpayer experimental study on trust,power,and tax compliance in eleven countries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Financial Innovation 2022年第1期8卷 2588-2610页

作者： Larissa M.Batrancea Anca Nichita ruggero De Agostini Fabricio Batista Narcizo Denis Forte Samuel de Paiva Neves Mamede Ana maria Roux-Cesar Bozhidar Nedev LeošVitek József Pántya Aidin Salamzadeh Eleanya K.Nduka Janusz Kudła Mateusz Kopyt Luis Pacheco Isabel Maldonado Nsubili Isaga Serkan Benk Tamer Budak Department of Business Babeş-Bolyai University7 Horea Street400174 Cluj-NapocaRomania Faculty of Economics “1 Decembrie 1918”University of Alba Iulia15-17 Unirii Street510009 Alba IuliaRomania Department of Psychol-ogy University of YorkHeslingtonYork YO105DDUK BPP Education Group Department of PsychologySchool of BusinessBPP University137 Stamford StreetLondon SE19NNUK Department of Computer Science IT University of CopenhagenRued Langgards Vej 72300 CopenhagenDenmark Office of CTO GN Audio As(Jabra)Lautrupbjerg 72750 BallerupDenmark Business Management Graduate Program Strategic Finance DepartmentMackenzie Pres-byterian University163 Rua Maria AntôniaSão Paulo 01302-907Brazil Center for Applied Social Sciences Mackenzie Presbyterian University930 Rua da ConsolaçãoSão Paulo 01302-907Brazil Department of Finance and Accounting Faculty of Economics and Business AdministrationSofia University“St.Kliment Ohridski”125 Tsarigradsko Shose Blvd.Block 31113 SofiaBulgaria Department of Public Finance Faculty of Finance and AccountingPrague University of Economics and BusinessWinston Churchill Sq.13067 Prague 3Czech Republic Department of Social Psychology Institute of PsychologyELTE Eötvös Loránd UniversityEgyetem tér 1-3Budapest 1053Hungary Faculty of Manage-ment University of TehranJalal-Ale-Ahmad StreetNasr BridgeTehran ***Iran Department of Economics University of NigeriaNsukkaEnugu StateNigeria Faculty of Economic Sciences University of Warsaw44/50 Długa Street00-241 WarsawPoland Department of Economics and Management/REMIT Portucalense UniversityRua Dr.António Bernardino de Almeida541-6194200-072 PortoPortugal School of Business Mzumbe UniversityMzumbeP.O.Box 6MorogoroTanzania Department of Public Finance Faculty of Economics and Administrative StudiesInonu University44280 BattalgaziMalatyaTurkey Department of Public Finance Faculty of EconomicsAdministrative and Social SciencesAlanya Alaaddin Keykubat University07400 AlanyaAntalyaTurkey

The slippery slope framework explains tax compliance along two main dimensions,trust in authorities and power of authorities,which influence taxpayers’compliance *** frequentist and Bayesian analyses,we investigated the framework’s assumptions on a sample of 2786 self-employed taxpayers from eleven post-communist and non-post-communist countries doing business in five economic *** using scenarios that experimentally manipulated trust and power,our results confirmed the framework’s assumptions regarding the attitudes of the self-employed taxpayers;trust and power fostered intended tax compliance and diminished tax evasion,trust boosted voluntary tax compliance,whereas power increased enforced tax ***,self-employed taxpayers from post-communist countries reported higher intended tax compliance and lower tax evasion than those from non-post-communist *** results offer tax authorities insights into how trust and power may contribute to obtaining and maintaining high tax compliance levels amid global economic challenges,downturns,and increasing tax compliance costs.

关键词： Self-employed taxpayers Slippery slope framework Voluntary tax compliance Enforced tax compliance Tax evasion

Intraoperative use of indocyanine green fluorescence imaging in rectal cancer surgery: The state of the art

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2021年第38期27卷 6374-6386页

作者： Roberto Peltrini Mauro Podda Simone Castiglioni maria Michela Di Nuzzo Michele D'Ambra ruggero Lionetti Maurizio Sodo Gaetano Luglio Felice Mucilli Salomone Di Saverio Umberto Bracale Francesco Corcione Department of Public Health University of Naples Federico IINapoli 80131Italy Department of Emergency Surgery Cagliari University Hospital"Duilio Casula"Azienda Ospedaliero-Universitaria di CagliariCagliari 09100Italy Department of Medical Oral and Biotechnological SciencesUniversity G.D’Annunzio Chieti-PescaraPescara 65100Italy Department of General Surgery University of InsubriaASST Sette LaghiVarese 21100Italy

Indocyanine green(ICG)fluorescence imaging is widely used in abdominal *** implementation of minimally invasive rectal surgery using new methods like robotics or a transanal approach required improvement of optical *** that setting,ICG fluorescence optimizes intraoperative vision of anatomical structures by improving blood and lymphatic *** purpose of this review was to summarize all potential applications of this upcoming technology in rectal cancer *** type of use has been separately addressed and the evidence was *** rectal resection,ICG fluorescence angiography is mainly used to evaluate the perfusion of the colonic stump in order to reduce the risk of anastomotic *** addition,ICG fluorescence imaging allows easy visualization of organs such as the ureter or urethra to protect them from *** intraoperative technology is a valuable tool for conducting lymph node dissection along the iliac lymphatic chain or to better identifying the rectal dissection planes when a transanal approach is *** is an overview of the applications of ICG fluorescence imaging in current surgical practice and a synthesis of the results obtained from the *** further studies are need to investigate the real clinical benefits,these findings may enhance use of ICG fluorescence in current clinical practice and stimulate future research on new applications.

关键词： Indocyanine green Fluorescence imaging Near infrared Rectal cancer Total mesorectal excision Anastomotic leakage