Search results for "Planetary Science"
showing 10 items of 4367 documents
Halloysite nanotubes: a green resource for materials and life sciences
2020
Clay minerals are considered one of the materials of the 20th century for their peculiar physico-chemical features. Among them, halloysite nanotubes (HNTs) are an emerging nanomaterial with a particular tubular structure that makes them a low cost and valuable alternative to the most common carbon nanotubes. Due to their tubular morphology, HNTs are employed in several fields acting as nanocontainers for different compounds for applications in drug carrier and delivery fields, catalysis, and as filler for polymeric matrices. The modification of HNTs’ surfaces allows to the synthesis of different nanoarchitectures that can improve the mechanical and thermal performance of polymer as well as …
Revenues from related Parties Transactions and UEFA Financial Fair Play. The Search for an Alternative Solution to Fair Value Measurement for the Bre…
2014
Transactions with related parties (RPTs) are numerous and frequent in the economy of companies; they are often made with different values from the ones in arm’s length transactions, and sometimes for opportunistic reasons. Many cases of RPTs occur in the football sector too, and they are mostly related to sponsorship contracts revenues. Through the financial fair play regulations, UEFA encourages the clubs which want to get the license for competing in European tournaments, to count on their capability to operate on the basis of their own revenues. The reorientation of the professional football clubs economic governance requested by UEFA also provides specific RPTs disclosure as well as the…
Quantifying Structural Subsidy Values for Systemically Important Financial Institutions
2013
Abstract Claimants to Systemically Important Financial Institutions (SIFIs) would receive transfers when governments are forced into bailouts. Ex ante, this bailout expectation lowers SIFIs’ daily funding costs. The funding cost advantage reflects both the structural level of the government support and the time-varying market valuation for such a support. Based on a large worldwide sample of banks, we estimate the value of the structural subsidy, by exploiting expectations of state support embedded in credit ratings and by applying the long-run average value of the rating bonus. The value of the structural subsidy was already sizable, 60 basis points (bp), as of the end-2007, before the cri…
Importància de la psicologia en l'economia i finances del comportament
2018
espanolDentro del campo de la Economia, la teoria de la Utilidad Esperada (UE) ha dominado la toma de decisiones bajo situaciones de riesgo. Sin embargo, la explicacion de la realidad por parte de los modelos neoclasicos ha puesto de manifiesto que los agentes violan de forma sistematica las hipotesis de la teoria de la UE. Para tratar de explicar estas anomalias, algunas teorias han incorporado la Psicologia en la toma de decisiones. Entre estas, la mas influyente es la Prospect Theory desarrollada por Kahneman i Tversky (1979), que es considerada, hasta nuestros dias como una referencia imprescindible para comprender el desarrollo de las Finanzas del Comportamiento. catalaDintre del camp …
Spain: a decentralised health system in constant flux
2009
The Spanish healthcare system is one of Europe’s most efficient, but urgent reform is needed if it is to cope with changing demands and rising costs, argue Jose M Martin-Moreno and colleagues
Virtual simulation of an osseointegrated trans-humeral prosthesis: A falling scenario
2018
Abstract Introduction Traditional prosthetic solutions expose the amputee to numerous problems that limit his ability to safely perform the normal activities of daily life. In order to eliminate the problems related to the use of the traditional prosthesis with socket, a new technique was developed for fixing the prosthesis to the amputees based on the principle of osseointegration. The aim of this paper is to study and analyze the stress distribution on the interface between a trans-humeral osseointegrated prosthetic implant and the residual bone, identifying the most stressed areas and thus foreseeing possible failure phenomena of the entire prosthetic system and, after, to compare the st…
Kielitutkinto ohjaa opetusta ja kannustaa puhumaan
2017
Tässä tutkimuksessa selvitetään vuosina 2003–2016 käytössä olleen kielitutkinnon vaikutuksia inkeriläisten paluumuuttajien paluumuuttovalmennukseen. Inkeriläisillä tarkoitan etnisiä suomalaisia, jotka ovat asuneet Venäjällä jo sukupolvien ajan. Voidakseen muuttaa Suomeen paluumuuttajastatuksen perusteella heidän piti suorittaa A2-tason kielitutkinto. Tutkimuksessa analysoin, kuinka opettajat kuvaavat tutkinnon vaikutusta opetukseensa. Opettajat työskentelivät Venäjällä ja opettivat suomea inkeriläisille, jotka aikoivat muuttaa Suomeen. Kurssin päätarkoituksena oli saavuttaa kielitutkinnossa vaadittu kielitaidon taso.Aineisto koostuu opettajien ja kielitutkintotyöryhmän asiantuntijoiden haas…
A Spatial Multilevel Analysis of Italian SMEs Productivity
2009
Abstract In this paper, we adapt multilevel analysis methods to investigate the spatial variability of SMEs' productivity across the Italian territory, and account for differences in the socio-economic context. Our results suggest that to properly capture the variability of the data, it is important to allow for both spatial mean and slope effects. Social decay has the expected negative impact. However, while this effect is larger on firms with smaller capital intensity, firms with higher capital intensity seem to be less affected by geography. Greater territorial heterogeneity emerges among those firms with lower capital to labour ratios. Une analyse spatiale a plusieurs niveaux de la prod…
Selecting between CNC turning centers using a combined AHP and fuzzy approach
2019
Abstract CNC turning centers (CNCTC) are designed to perform simple turning operations, for parts having a symmetry axis. However, the flexibility of these machine-tools is increasing rapidly. Supplementary modules, such as Y-axis and driven tools, which allow the user to perform milling operations, are fitted on CNCTC. Selecting the proper CNCTC, out of a great number of commercially available solution has become a very difficult task. A combined approach using Analytic Hierarchy Process (AHP) and fuzzy logic is proposed, to assist the decision-making process of choosing between three variants of CNCTC.
Municipal Climate Change Adaptation GOVERNANCE in Latvia: ApproachING Cross-sectorial and Multi–instrumental understanding
2021
Climate change adaptation being one of today’s main challenges on global agenda do affect people worldwide, but even though most decisions regarding climate change governance are made at the international or national level, the implementation of these decisions in most cases takes place at the local level. Municipal climate change adaptation research project in Latvia was carried out with special emphases on main stakeholder understanding, preparedness and communication factors using several complementary research methods – case study research in Salacgriva coastal municipality, sociological surveys with both Salacgriva town households / inhabitants (home visits / questionnaires) and also n…