131,335 research outputs found
On proper polynomial maps of C 2
No full textTwo proper polynomial maps f 1,f 2 :C 2→C 2 are said to be equivalent if there exist Φ 1,∈Φ 2 Aut(C 2) such that f 2=Φ 2 o f 1 o Φ 1. We investigate proper polynomial maps of topological degree d ≥2 up to equivalence. Under the further assumption that the maps are Galois coverings, we also provide the complete description of equivalence classes. This widely extends previous results obtained by Lamy in the case d=2. © 2009 Mathematica Josephina, Inc
Il broglio metafisico: lacci del pensiero, urgenze della volontà nella città invisibile del Cottolengo
No full textIn questo lungo racconto che segna una svolta anche nella sua stessa produzione Calvino mette a tema non tanto la disabilità in sé, quanto il rapporto nel quale essa inevitabilmente coinvolge l’altro da sé, quell’‘altro’ dalla cui straniata prospettiva si leggono i fatti del racconto. L’autore guida, così, il lettore a una meditazione sull’inalienabilità, sulla tenuta dell’essenza umana, sulla natura umana come fatto che, nelle sue molteplici forme, si impone, oltre che all’esperienza, alle considerazioni dell’intelletto ma soprattutto alle risposte della volontà. I confini dell’umano, che fino a un certo punto, nel racconto, sembrano oggetto di discernimento razionale, si rivelano nella loro problematicità ineludibile, che esige continui riorientamenti, correzioni di rotta da parte di una volontà chiamata allora non più a delimitare, ma ad allargare tali confini, anche oltre lo spazio di manovra dell’intelletto e in sofferta dialettica rispetto alla prospettiva culturale marxista. Si tratta di una volontà da trasfigurare, che sia espressione non solo del sé, ma anche, e soprattutto, della rinuncia all’affermazione di sé di fronte all’intuizione di vedersi altro rispetto a qualcuno che si fa presente e interpella. Lo stile interrogativo, l’attitudine al progressivo approssimarsi al cuore delle questioni, le forme espressive attraverso le quali l’autore sospinge il lettore ad un capovolgimento di sguardo sui confini dell’idea di disabilità sono oggetto privilegiato di queste analisi, in quanto strumenti performativi di una poetica tesa a far maturare nei lettori coscienza delle cose del mondo, a far esplodere, come diceva Calvino, la «carica morale dei fatti».In this long story that marks a turning point also in his own production, Calvino focuses not so much on disability in itself, but on the relationship in which it inevitably involves the other from himself, that other from whose alienated perspective we read the facts of the tale. Thus, the author guides the reader to a meditation on inalienability, on the sealing of human essence, on human nature as a fact that, in its many forms, imposes itself on the considerations of the intellect but especially to the responses of the will. It is a will that must transfigured, which is an expression not only of the self, but also, and above all, of the renunciation of self-affirmation. The interrogative style, the attitude to progressively approach the heart of the issues, the expressive forms through which the author pushes the reader to a reversal of the gaze on the boundaries of the idea of disability are the privileged object of these analyze
Sand Piles Models of Signed Partitions with d Piles
No full textLet r,d ≤ n be nonnegative integers. In this paper we study the basic properties of a discrete dynamical model of signed integer partition that we denote by S(n,d,r). A generic element of this model is a signed integer partition with exactly d all distinct nonzero parts, whose maximum positive summand is not exceeding r and whose minimum negative summand is not less than -(n-r). In particular, we determine the covering relations, the rank function, and the parallel convergence time from the bottom to the top of S(n,d,r) by using an abstract Sand Piles Model with three evolution rules. The lattice S(n,d,r) was introduced by the first two authors in order to study some combinatorial extremal sum problems
Strategi Pemasaran Pada Benih Jagung BISI 99
No full textUD ABCD merupakan perusahaan yang bergerak di bidang pengadaan sarana produksi pertanian.UD ABCD memiliki masalah pada pemasaran benih jagung BISI-99.Penulisan tugas akhir bertujuan untuk (1) menganalisis strategi bauran pemasaran benih jagung BISI-99 di UD ABCD Punggur Lampung Tengah dengan metode 4P (2) menganalisis strategi pemasaran dengan metode SWOT.Metode analisis data yang digunakan adalah metode analisis deskriptif dan kuantitatif. Hasil analisis dan pembahasan menunjukan bahwa (1)strategi pemasaran benih jagung 4P yaitu(a) benih jagung BISI-99 memiliki keunggulan pada mudahnya penanganan pasca panen dan memiliki sertifikat benih unggul, (b) harga benih jagung BISI-99 adalah Rp80.000/kg, (c) UD ABCD melakukan promosi secara langsung, dan promosi secara online, (d) Lokasi UD ABCD berpusat di kecamatan Punggur. (2) Strategi pemasaran benih menggunakan analisis SWOT menghasilkan strategi progresif yaitu meningkatkan kualitas pelayanan, menjaga kualitas produk, menjalin hubungan yang baik dengan jaringan pemasaran yang sudah ada
Covid-19 and ENT practice: Our experience: ENT outpatient department, ward and operating room management during the SARS-CoV-2 pandemic
No full textCoronavirus COVID-19 SARS-CoV-2 ENT Otolaryngolog
Recensione a “Le temps des victimes” di C.Eliacheff e D. Soulez Larivière, Albin, Michel, 2007
No full textCaroline Eliacheff, psicoanalista, e Daniel Soulez
Larivière, avvocato, hanno unito le loro
esperienze professionali al fine di introdurci ad
una lettura, per alcuni versi inquietante, del
problema vittimologico nella società odierna.
I due Autori nel volume, che sarà a breve tradotto
in italiano, sottolineano come l’individuo
moderno si trovi ad essere costretto tra due
estremi: da un lato, l’egualitarismo democratico e,
dall’altro, l’individualismo considerato come
valore supremo
The optical transition in porous Si: The effects of quantum confinement, surface states and hydrogen passivation
No full textWe present a theoretical study of two infinite wires of Si with a different lateral size. The analysis is based on the linear muffin tin orbitals method in the atomic sphere approximation (LMTO-ASA). We consider free, partially and totally H-covered[001] Si quantum wires with rectangular cross-section. The results of this investigation prove the quantum wire nature of porous Si and interpret many of its physical features. In particular we show that a) as expected quantum confinement originates the opening of the LDA gap; b) the gap opening effect is asymmetric: 1/3 of the widening is in the valence band, while 2/3 in the conduction band; c) the near band gap states originate from Si atoms located at the center of the wire; d) the confinement is enhanced in the case of free surfaces; e) the imaginary part of the dielectric function shows a low-energy side structure strongly anisotropic, identified as responsible of the luminescence transition; f) the presence of dangling bonds destroys the luminescence properties; g) in spite of feature c), all Si atoms ape collectively involved in the luminescence transition; h) the shift detected by the Si L(2,3) VV Anger signal is due to H-interaction effect and is not a measure of the quantum confinement effect; i) the Si atoms probed by the Si L(2,3) VV Auger are bonded with H and H-2
Kinetic models for systems of interacting agents with multiple microscopic states
No full textWe propose and investigate general kinetic models with transition probabilities that can describe the simultaneous change of multiple microscopic states of the interacting agents. These models can be applied to many problems in socio-economic sciences, where individuals may change both their compartment and their characteristic microscopic variable, as for instance kinetic models for epidemic diffusion or for international trade with possible transfers of agents. Mathematical properties of the kinetic model are proved, as existence and uniqueness of a solution for the Cauchy problem in suitable Wasserstein spaces. The quasi-invariant asymptotic regime, leading to simpler kinetic Fokker-Planck-type equations, is investigated and commented on in comparison with other existing models. Some numerical tests are performed in order to show the time evolution of distribution functions and of meaningful macroscopic fields, even in case of non-constant interaction rates and transfer probabilities
I markers tumorali
No full textGli autori espongono una rassegna dei principali markers tumorali, precisandone le caratteristiche fondamentali. I markers tumorali vengono suddivisi in cinque categorie (antigeni oncofetali, prodotti di degradazione proteica, ormoni, enzimi, altri); possono essere ricercati con varie metodiche nel siero dei vari liquidi biologici e su preparati istologici. Lo studio combinato di più markers simultaneamente sembra fornire i migliori risultati per la diagnosi e per il monitoraggio delle varie forme tumorali. Viene, infine, prospettato l'uso degli anticorpi monoclonali al fine di ottenere markers specifici per ogni tipo di neoplasia
Schr¿der equation in several variables and composition operators.
No full textLet be a holomorphic self-map of the open unit ball of such that and that the differential of at 0 is non singular. The study of the Schroder equation in several complex variables is naturally related to the theory of composition operators on Hardy spaces of holomorphic maps on and to the theory of the discrete, complex dynamical systems. An extensive use of the infinite matrix which represents the composition operator associated to the map leads to a simpler approach, and provides new proofs, to results of existence of solutions for the Schroder equation
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