Search results for " 14"

Focal adhesions are hotspots for keratin filament precursor formation

2006

Recent studies showed that keratin filament (KF) formation originates primarily from sites close to the actin-rich cell cortex. To further characterize these sites, we performed multicolor fluorescence imaging of living cells and found drastically increased KF assembly in regions of elevated actin turnover, i.e., in lamellipodia. Abundant KF precursors (KFPs) appeared within these areas at the distal tips of actin stress fibers, moving alongside the stress fibers until their integration into the peripheral KF network. The earliest KFPs were detected next to actin-anchoring focal adhesions (FAs) and were only seen after the establishment of FAs in emerging lamellipodia. Tight spatiotemporal …

On the origin of the southern Permian Basin, Central Europe.

2000

A detailed study of the structural and stratigraphic evolution of the Southern Permian Basin during latest Carboniferous to Early Jurassic times, supported by quantitative subsidence analyses and forward basin modelling for 25 wells, leads us to modify the conventional model for the Rotliegend-Zechstein development of this basin. The Late Permian-Early Jurassic tectonic subsidence curves are typical for a Permian to Early Triassic extensional stage that is followed by thermal subsidence. However, a purely extensional model is extremely problematic because active faulting during this time is 'minor' and generally hard to document. Using inverse techniques to model the subsidence curves, we q…

Abelian varieties and theta functions associated to compact Riemannian manifolds; constructions inspired by superstring theory

2012

We look into a construction of principal abelian varieties attached to certain spin manifolds, due to Witten and Moore-Witten around 2000 and try to place it in a broader framework. This is related to Weil intermediate Jacobians but it also suggests to associate abelian varieties to polarized even weight Hodge structures. The latter construction can also be explained in terms of algebraic groups which might be useful from the point of view of Tannakian categories. The constructions depend on moduli much as in Teichm\"uller theory although the period maps in general are only real analytic. One of the nice features is how the index for certain differential operators canonically associated to …

A remark on hyperplane sections of rational normal scrolls

2017

We present algebraic and geometric arguments that give a complete classification of the rational normal scrolls that are hyperplane section of a given rational normal scrolls.

Vida, virtudes, milagros, y festivos cultos de Santo Thomas de Villanueua Arzobispo de Valencia, de la Orden de N.G.P. San Agustin

Gravat calc. en el f. de làm.: "T. Planes sp. 1729" Port. amb orla tip Frisos, vinyetes, caplletres ornades, asteriscos, filets Descripció física completa obtinguda del CCPB Sign.: [ ]1, §1(2, §2(2), §3(2), §4(2), §5(2), A4, B-O2, P-Kkk4, Lll-Aaaa2, Bbbb4, Cccc-Eeee2 Port. a 2 tintes Text a 2 cols. - Notes a peu de pa 1 col. - Reclams

Ara ojats, queus fan asaber de part dels molts illustres señors iusticia, y jurats de dita ciutat de Valencia, com ses señories ha[n] tengut certes n…

Text signat per Vicent Felizes Escriva Precedeix el títol: "A llahor, honor, è gloria de nostre señor Deu Iesu Christ" Títol obtingut del començament del text Text datat a València el 18 d'abril de 1659 Signatures: [ ]3 Escuts calcogràfics de Jaume I i de València Caplletres ornades al començament de diversos paràgrafs Gravat de Sant Tomás de Villanueva "Pregó del Consell General de València sobre la canonització de Sant Tomàs de Villanova"

Gozos del glorioso Santo Tomas de Villanueva, Arzobispo de Valencia, venerado en el Real Convento de nuestra Señora del Socorro, extramuros de la mis…

El full orlat Grav. xil. enmarcat del sant, flanquejat per gerros amb flors El text del goig a tres col. separades per filets

Gozos del glorioso Santo Tomas de Villanueva, Arzobispo de Valencia, venerado en el Real Convento de N. Sª del Socorro, extramuros de Valencia, donde…

El full orlat Grav. xil. enmarcat de "S. Tomàs de Villanueva", flanquejat per gerros amb flors El text del goig a tres col. separades per filets

Polluting loads detection in power systems: a decision-making strategy based on nonactive power measurements

2010

In this paper a novel decision-making strategy is proposed for the detection of polluting loads in three-phase power systems. It makes use of simple indices, which are expressed as a function of some nonactive power quantities, previously proposed by the authors and derived from the approach of the IEEE Std. 1459–2000. The decision-making rules for the proposed strategy are presented and discussed, by means of some simulation tests.

A time domain strategy for the measurement of IEEE Standard 1459-2000 power quantities in nonsinusoidal three-phase and single-phase systems

2008

This paper describes a time domain technique for the detection of fundamental and harmonic components of voltages and currents, which is able to evaluate all the quantities required by IEEE standard 1459-2000. The technique does not require any spectral analysis to separate the fundamental positive-sequence components from harmonic, negative-sequence and zero-sequence ones. In the paper the development of the proposed technique is presented for three-phase systems, both three-wires and four-wires, as well as for single-phase systems. The implementation of the proposed technique on a PC-based instrument is also described and experimental results are presented. Finally, accuracy specification…