Search results for "Pere"
showing 10 items of 632 documents
Association of Blattella germanica sensitization with atopic diseases in pediatric allergic patients
2011
The extent to which the sensitization to the German cockroach Blattella germanica (BG) affects onset/presence of rhinoconjunctivitis (RC) in children is unknown.
Velobraucēju kustības trajektoriju analīze, izmantojot iOS Vision attēlu atpazīšanu
2019
Pārprojektējot krustojumus vai tos slēdzot remontdarbu laikā, ir svarīgi organizēt satiksmi, lai tā apmierinātu esošo dalībnieku pārvietošanās plūsmu un intensitāti. Velo braucēju trajektoriju atzīmēšana ielas attēlā ir viens no uzskatāmiem pamatojumiem, plānojot šādas izmaiņas. Darbā tiek aprakstīti iespējamie risinājumi velo braucēju atpazīšanā ar konvolūciju neironu tīkliem un izsekošanā ar datorredzi. Izvēlētie risinājumi tiek izmantoti mobilās lietotnes izstrādē uz iOS operētājsistēmas ierīcēm, kas reāllaikā spētu reģistrēt velo braucēju pārvietošanos un atzīmēt veiktās trajektorijas virs videomateriāla. Šāds rezultāts tik…
Ar superformulu ģenerētu objektu īpašības un pielietojumi
2019
Bakalaura darba mērķis ir izpētīt ierobežojumus, kādi attiecas uz figūrām, kuras ģenerētas, izmantojot superformulu, kā arī pētīt praktiskus pielietojumus šādam figūru ģenerēšanas paņēmienam. Dabā sastopamu formu ģenerēšanai bieži vien nepieciešami netriviāli vienādojumi vai pārveidojumi, kas patērē gan laika, gan atmiņas resursus. Izmantojot superformulu, šādu formu ģenerēšanai nepieciešami tikai daži parametri. Tā kā visas šādi ģenerētas figūras apraksta viena formula, tad ir iespējams izmantot analītiskas metodes, lai noteiktu figūru un taišņu krustpunktus, kā arī attālumus starp šādi veidotām figūrām. Darbā vispirms tiek apskatītas superelipšu un superformulas īpašības, pēc tam tiek aps…
Gozos a los martires de Valencia San Juan de Perusia, y San Pedro de Saxoferrato, Hijos de N. P. S. Francisco, que padecieron Martirio en el lugar qu…
El full orlat Grav. xil. enmarcat dels sants, flanquejat per gerros amb flors El text del goig a tres col. separades per filets
Le Pipe e gli Orsi, il Poema e i Miracoli: declinazioni del dispositivo letterario-pittorico nelle opere doppie di Buzzati
2014
Nelle opere doppie Buzzati imita generi che non appartengono esclusivamente alla tradizione letteraria, soprattutto a quella cosiddetta ‘alta’. Le Pipe e gli Orsi, il Poema e i Miracoli sono riscritture ironiche e deformanti di generi diversi, come il trattato, la fiaba, il fumetto, l’emblematica insieme alla pittura votiva. Inoltre Buzzati opera su generi misti, composizioni di pittura e scrittura, dove è difficile stabilire la prevalenza o la preferenza di un’arte sull’altra. Le due coppie di opere, all’inizio e alla fine della sua carriera artistica, delineano un’evoluzione del dispositivo letterario-pittorico, declinando una dispositio retorica che Buzzati ha tenuto sempre presente nell…
A smallest irregular oriented graph containing a given diregular one
2004
AbstractA digraph is called irregular if its vertices have mutually distinct ordered pairs of semi-degrees. Let D be any diregular oriented graph (without loops or 2-dicycles). A smallest irregular oriented graph F, F=F(D), is constructed such that F includes D as an induced subdigraph, the smallest digraph being one with smallest possible order and with smallest possible size. If the digraph D is arcless then V(D) is an independent set of F(D) comprising almost all vertices of F(D) as |V(D)|→∞. The number of irregular oriented graphs is proved to be superexponential in their order. We could not show that almost all oriented graphs are/are not irregular.
Efficient computation of the branching structure of an algebraic curve
2012
An efficient algorithm for computing the branching structure of a compact Riemann surface defined via an algebraic curve is presented. Generators of the fundamental group of the base of the ramified covering punctured at the discriminant points of the curve are constructed via a minimal spanning tree of the discriminant points. This leads to paths of minimal length between the points, which is important for a later stage where these paths are used as integration contours to compute periods of the surface. The branching structure of the surface is obtained by analytically continuing the roots of the equation defining the algebraic curve along the constructed generators of the fundamental gro…
Symmetric identities in graded algebras
1997
Let P k be the symmetric polynomial of degree k i.e., the full linearization of the polynomial x k . Let G be a cancellation semigroup with 1 and R a G-graded ring with finite support of order n. We prove that if R 1 satisfies $ P_k \equiv 0 $ then R satisfies $ P_{kn} \equiv 0 $ .
A Polynomial Quantum Query Lower Bound for the Set Equality Problem
2004
The set equality problem is to tell whether two sets A and B are equal or disjoint under the promise that one of these is the case. This problem is related to the Graph Isomorphism problem. It was an open problem to find any ω(1) query lower bound when sets A and B are given by quantum oracles. We will show that any error-bounded quantum query algorithm that solves the set equality problem must evaluate oracles \(\Omega(\sqrt[5]{\frac{n}{\ln n}})\) times, where n=|A|=|B|.
Perimeter symmetrization of some dynamic and stationary equations involving the Monge-Ampère operator
2017
We apply the perimeter symmetrization to a two-dimensional pseudo-parabolic dynamic problem associated to the Monge-Ampere operator as well as to the second order elliptic problem which arises after an implicit time discretization of the dynamical equation. Curiously, the dynamical problem corresponds to a third order operator but becomes a singular second order parabolic equation (involving the 3-Laplacian operator) in the class of radially symmetric convex functions. Using symmetrization techniques some quantitative comparison estimates and several qualitative properties of solutions are given.