Search results for "AH"

Limit on the diffuse flux of ultrahigh energy tau neutrinos with the surface detector of the Pierre Auger Observatory

2009

Data collected at the Pierre Auger Observatory are used to establish an upper limit on the diffuse flux of tau neutrinos in the cosmic radiation. Earth-skimming ντ may interact in the Earth's crust and produce a τ lepton by means of charged-current interactions. The τ lepton may emerge from the Earth and decay in the atmosphere to produce a nearly horizontal shower with a typical signature, a persistent electromagnetic component even at very large atmospheric depths. The search procedure to select events induced by τ decays against the background of normal showers induced by cosmic rays is described. The method used to compute the exposure for a detector continuously growing with time is de…

Addictive neurons

2017

Since the reward center is considered to be the area tegmentalis ventralis of the hypothalamus, logically its neurons could mainly be responsible for addiction. However, the literature asserts that almost any neurons of CNS can respond to one or another addictive compound. Obviously not only addictive nicotine, but also alcohol, amphetamine, cannabis, cocaine, heroin and morphine may influence dopaminergic cells alone in VTA. Moreover, paradoxically some of these drugs ameliorate symptoms, counterbalance syndromes, cure diseases and improve health, not only those related to the CNS and in adults, but also almost all other organs and in children, e.g. epilepsy.

National & International UID Portfolio

2014

In this survey, starting from the research activities carried out by the LAAC - Laboratory of Archaeology and Architecture of the Granada city, special focus is placed on the reconstruction of one of the most emblematic and symbolic buildings of the Algerian culture, the mosque and the minaret of the City of Mansoura (Tlemcen): starting from a photographic campaign that was also conducted remotely, it has been assumed to rebuilt virtually partially destroyed building as a symbol and a memory of its ancient splendour.

”Liike-englantia olen oppinut työelämässä” – Muulla tavoin hankittu kieliosaaminen näkyväksi korkeakouluopinnoissa

2012

Artikkelissa käsitellään aiemmin hankitun osaamisen tunnistamisen ja tunnustamisen (AHOT) menettelytapoja ammattikorkeakouluissa. Kieli- ja viestintäopintojen AHOT-menettelyt ammattikorkeakouluissa linkittyvät korkeakoulujen kieli- ja viestintäopintojen (AHOT)-suosituksiin. Suositukset on laadittu AHOT korkeakoulussa -hankkeessa syksyllä 2011 yhteistyössä yliopistojen ja ammattikorkeakoulujen kieli- ja viestintäasiantuntijoiden kanssa. nonPeerReviewed

Strategic analysis of transit service quality using fuzzy AHP methodology

2013

Customer satisfaction analyses are deeply based on customers' judgments and as consequence, they can be characterized by a certain degree of uncertainty generally ascribed to coexistence of three relevant aspects: vagueness, imprecision and subjectivity. In the present paper, a methodology able to handle such uncertainty, based on the ServQual discrepancy paradigm and that uses in combined manner the AHP method and the Fuzzy Sets Theory is proposed in order to overcome limitations of the traditional service evaluation approaches. Subsequently, by considering the Italian public transit service sector, a service quality analysis is conducted and the overall transit service quality structure i…

GLI ELEMENTI DETERMINANTI PER LA COMPETITIVITA’ DEL TURISMO NAUTICO: IL CASO DELLA SARDEGNA

2014

Characterization of the consistent completion of analytic hierarchy process comparison matrices using graph theory

2019

Decision-making is frequently affected by uncertainty and/or incomplete information, which turn decision-making into a complex task. It is often the case that some of the actors involved in decision-making are not sufficiently familiar with all of the issues to make the appropriate decisions. In this paper, we are concerned about missing information. Specifically, we deal with the problem of consistently completing an analytic hierarchy process comparison matrix and make use of graph theory to characterize such a completion. The characterization includes the degree of freedom of the set of solutions and a linear manifold and, in particular, characterizes the uniqueness of the solution, a re…

Some awkward issues on pairwise comparison matrices

2017

Many decision-making techniques use pairwise comparisons (PCs) elicited by one or more stakeholders involved in a given corresponding decision-making process. In very complex problems, the number of criteria or options to be compared may be too large, thus limiting PC applicability to large-scale decision problems due to the so-called curse of dimensionality, that is, a large number of pairwise comparisons need to be produced from a decision maker. For example, in AHP, Saaty [1] recommends that to obtain a reasonable and consistent PC matrix, the number of comparing elements should be at most seven. In [2] and [3], arguing on limitations of the human capabilities, the maximum number of elem…

Esquema de derivación consistente de prioridades en un marco de consenso

2019

La toma de decisiones impregna la actividad humana. Con frecuencia, la decisión no es simple porque involucra elementos cualitativos, subjetivos, intangibles. En diversos métodos de decisión multi-criterio, los elementos protagonistas de tales procesos son comparados por pares, y tales comparaciones se utilizan para construir una matriz de comparaciones, de cuyo estudio emerge la decisión. En AHP (Analytic Hierarchy Process), por ejemplo, las prioridades se obtienen vía el vector propio de Perron de tales matrices. Para que la decisión sea adecuada, no obstante, las comparaciones deben ser aceptablemente consistentes. Pero cuando se comparan muchos elementos, la consistencia puede flaquear,…

Time-Varying mHAP-III Is the Most Accurate Predictor of Survival in Patients with Hepatocellular Carcinoma Undergoing Transarterial Chemoembolization

2021

<b><i>Introduction:</i></b> The prognosis of patients undergoing transarterial chemoembolization (TACE) is extremely variable, and a confounding factor is that TACE is often repeated several times. We retrospectively evaluated the accuracy of different prognostic scores and staging systems in estimating overall survival (OS) in patients with hepatocellular carcinoma (HCC). <b><i>Methods:</i></b> An analysis considering prognostic models as time-varying variables was performed, calculating OS from the time of TACE to the time of the subsequent treatment. Total follow-up time for each patient was therefore split into several observation times ac…