Search results for "Normal"
showing 10 items of 2571 documents
Corporate entrepreneurship and governance: Mergers and acquisitions in Europe
2022
Mergers and acquisitions (M&A) are a form of corporate entrepreneurship involving strategic decisions that require discussion and approval by the board of directors of the acquiring firm. We focus on board attributes to analyze the entrepreneurial function of the board of directors and its involvement in corporate entrepreneurship. Building on different theories (agency theory, resource dependence theory, stewardship theory, and stakeholder theory), we examine whether board composition affects the number of acquisitions, the risk involved in bids, and the creation of value for the acquirer's shareholders. For a sample of European firms over the period 2002 to 2020, we find that board size a…
Evaluation of menstrual irregularities after COVID-19 vaccination: Results of the MECOVAC survey
2022
Abstract We investigated menstrual irregularities after the first and second doses of the COVID-19 vaccine. Women answered a customised online questionnaire (ClinicalTrial.gov ID: NCT05083065) aimed to assess the vaccine type, the phase of the menstrual cycle during which the vaccine was administered, the occurrence of menstrual irregularities after the first and second doses, and how long this effect lasted. We excluded women with gynaecological and non-gynaecological diseases, undergoing hormonal and non-hormonal treatments, in perimenopause or menopause, as well as those who had irregular menstrual cycles in the last 12 months before vaccine administration. According to our data analysis…
KERNEL ESTIMATION OF THE TRANSITION DENSITY IN BIFURCATING MARKOV CHAINS
2023
We study the kernel estimator of the transition density of bifurcating Markov chains. Under some ergodic and regularity properties, we prove that this estimator is consistent and asymptotically normal. Next, in the numerical studies, we propose two data-driven methods to choose the bandwidth parameters. These methods are based on the so-called two bandwidths approach.
Quantum effects, anomalies and renormalization in Electrodynamics, Cosmology and Black Holes
2023
La Teoria Quàntica de Camps en Espais Corbats ha demostrat ser una teoria semi-clàssica molt útil per a l'estudi de fenòmens físics que combinen gravetat i efectes quàntics. En particular, prediu que la dinàmica d'un camp gravitacional de fons pot excitar espontàniament partícules a partir del buit quàntic. El procés de producció de partícules té una importància especial en l'estudi de l'univers primerenc en cosmologia i és la base de la radiació de Hawking en la física dels forats negres. Físicament, aquest efecte quàntic és anàleg a l'efecte Schwinger ben conegut en l'electrodinàmica quàntica. L'objectiu d'aquesta Tesi és estudiar aquest fenomen general de producció de partícules, així co…
Estudio sobre las normas de calidad y seguridad de la industria: avances y desafíos
2019
La seguridad alimentaria es una de las principales preocupaciones de la industria alimentaria. La globalización ha dado lugar a nuevos problemas, que aumentarán en los próximos años, debido a los mercados internacionales y a la gran variabilidad en la legislación de los países. Por ello el desarrollo del comercio requiere que las empresas y organizaciones establezcan sistemas de gestión que faciliten los procesos de compra y venta de productos o servicios. Se revisan las normas de calidad de los organismos de normalización más importantes, ISO (International Standarization Organization), IFS (International Food Standard), BRC (British Retail Consortium), teniendo en cuenta su origen, desarr…
Hulluus kulttuurisena kysymyksenä
2019
"E' la stampa bellezza!": la corte costituzionale alle prese con la risposta carceraria alle lesioni mediatiche della reputazione
2021
L'articolo analizza in chiave critica la posizione assunta dalla Corte costituzionale italiana in ordine ai criteri che il giudice penale è tenuto ad osservare nella scelta tra sanzione detentiva o pecuniaria in materia di diffamazioni commesse col mezzo della stampa o con altro mezzo di diffusione. .
Semigenerated Carnot algebras and applications to sub-Riemannian perimeter
2021
This paper contributes to the study of sets of finite intrinsic perimeter in Carnot groups. Our intent is to characterize in which groups the only sets with constant intrinsic normal are the vertical half-spaces. Our viewpoint is algebraic: such a phenomenon happens if and only if the semigroup generated by each horizontal half-space is a vertical half-space. We call semigenerated those Carnot groups with this property. For Carnot groups of nilpotency step 3 we provide a complete characterization of semigeneration in terms of whether such groups do not have any Engel-type quotients. Engel-type groups, which are introduced here, are the minimal (in terms of quotients) counterexamples. In add…
Nonlinear Time-Series Adaptation for Land Cover Classification
2017
Automatic land cover classification from satellite image time series is of paramount relevance to assess vegetation and crop status, with important implications in agriculture, biofuels, and food. However, due to the high cost and human resources needed to characterize and classify land cover through field campaigns, a recurrent limiting factor is the lack of available labeled data. On top of this, the biophysical–geophysical variables exhibit particular temporal structures that need to be exploited. Land cover classification based on image time series is very complex because of the data manifold distortions through time. We propose the use of the kernel manifold alignment (KEMA) method for…
Juridiskā zinātne, Nr. 12
2019
The publishing of Journal “Law” of the University of Latvia is financed by the Faculty of Law of the University of Latvia. The publishing of issue No. 11 is supported by “Eversheds Sutherland Bitāns” Law Office.