Search results for "H2"
showing 10 items of 600 documents
Halogen Bonds in 2,5-Dihalopyridine-Copper(I) Halide Coordination Polymers
2019
Two series of 2,5-dihalopyridine-Cu(I)A (A = I, Br) complexes based on 2-X-5-iodopyridine and 2-X-5-bromopyridine (X = F, Cl, Br and I) are characterized by using single-crystal X-ray diffraction analysis to examine the nature of C2&minus
The Anti-Cancer Effect of
2019
Ethanolic extracts from Mangifera indica L. have been proved to possess anti-tumor properties in many cancer systems. However, although most effects have been demonstrated with fruit pulp extract, the underlying molecular mechanisms of mango peel are still unclear. This study was designed to explore the effects of mango peel extract (MPE) on colon cancer cell lines. MPE affected cell viability and inhibited the colony formation trend of tumor cells, while no effects were observed in human dermal fibroblasts used as a non-cancerous cell line model. These events were a consequence of the induction of apoptosis associated to reactive oxygen species (ROS) production, activation of players of th…
Informācijas sistēma repetitoru un konsultāciju pieteikumu uzskaitei
2021
Kvalifikācijas darbā ir aprakstīta sistēma, kas paredzēta repetitoru konsultāciju organizēšanai. Sistēmas lietotāji ir skolēni, repetitori un administratori. Sistēma piedāvās iespēju reģistrētiem lietotājiem elektroniski pierakstīties uz konsultāciju pie repetitora, aplūkot savu pierakstu vēsturi un atstāt atsauksmi par repetitoru. Lietotāji ar repetitora lomu varēs izvēlēties mācību priekšmetus, kurus viņi vēlētos pasniegt, un izveidot konsultācijas, norādot atrašanās vietu un laiku. Repetitors varēs pārskatīt savas konsultācijas, lietotāju komentārus un redzēt to lietotāju kontaktinformāciju, kas pierakstījušies pie konkrētā repetitora. Administratori sistēmā varēs piešķirt lietotājiem re…
Making better value from catches in EU: outcomes from the SUCCESS project
2019
Influence of a Thiolate Chemical Layer on GaAs (100) Biofunctionalization: An Original Approach Coupling Atomic Force Microscopy and Mass Spectrometr…
2013
International audience; Widely used in microelectronics and optoelectronics; Gallium Arsenide (GaAs) is a III-V crystal with several interesting properties for microsystem and biosensor applications. Among these; its piezoelectric properties and the ability to directly biofunctionalize the bare surface, offer an opportunity to combine a highly sensitive transducer with a specific bio-interface; which are the two essential parts of a biosensor. To optimize the biorecognition part; it is necessary to control protein coverage and the binding affinity of the protein layer on the GaAs surface. In this paper; we investigate the potential of a specific chemical interface composed of thiolate molec…
Sonication-Induced Modification of Carbon Nanotubes: Effect on the Rheological and Thermo-Oxidative Behaviour of Polymer-Based Nanocomposites.
2018
The aim of this work is the investigation of the effect of ultrasound treatment on the structural characteristics of carbon nanotubes (CNTs) and the consequent influence that the shortening induced by sonication exerts on the morphology, rheological behaviour and thermo-oxidative resistance of ultra-high molecular weight polyethylene (UHMWPE)-based nanocomposites. First, CNTs have been subjected to sonication for different time intervals and the performed spectroscopic and morphological analyses reveal that a dramatic decrease of the CNT's original length occurs with increased sonication time. The reduction of the initial length of CNTs strongly affects the nanocomposite rheological behavio…
STATE AID POLICY BETWEEN COMPETITION AND ECONOMIC GROWTH: THE IMPACT OF STATE AID TO R&D ON GDP IN THE EU MEMBER STATES
2012
The paper focuses on the analysis of the relationship between state aid to R&D and economic growth, measured by GDP level, providing empirical evidence of a correlation between these variables. Using a methodology which combines the regression technique and Granger causality, we found that GDP represents a significant causal determinant of state aid, while the correlation the variables considered is positive and statistically significant, suggesting that, in spite of disparities between Member States, government support through state aid to R&D has evolved from maintaining undistorted competition to the possibility to act as an incentive for the economic growth in the EU.
Tuning of Emission Wavelength of CaS:Eu by Addition of Oxygen Using Atomic Layer Deposition
2021
| openaire: EC/H2020/820423/EU//S2QUIP | openaire: EC/H2020/834742/EU//ATOP | openaire: EC/H2020/965124/EU//FEMTOCHIP Atomic layer deposition (ALD) technology has unlocked new ways of manipulating the growth of inorganic materials. The fine control at the atomic level allowed by ALD technology creates the perfect conditions for the inclusion of new cationic or anionic elements of the already-known materials. Consequently, novel material characteristics may arise with new functions for applications. This is especially relevant for inorganic luminescent materials where slight changes in the vicinity of the luminescent centers may originate new emission properties. Here, we studied the lumines…
FACTORIAL ANALYSIS OF FISCAL PRESSURE IN ROMANIA: 2008 - 2011
2013
The existence of any modern state is unthinkable without a tax system's efficiency and performance through pressure on taxpayers. Tax burden may be easier as long as it is not excessive. This paper aims to analyze the factors which influence overall tax burden calculated at the Romanian state budget level by using two factorial models for decomposition of the tax burden, a synthetic one and an analytical one. This goal is preceded by a dynamic and structural approach of the tax burden in Romania during 2000 - 2011 in relation to changes in tax burden of the EU Member States.
Thermo-Mechanical Behaviour of Flax-Fibre Reinforced Epoxy Laminates for Industrial Applications
2015
The present work describes the experimental mechanical characterisation of a natural flax fibre reinforced epoxy polymer composite. A commercial plain woven quasi-unidirectional flax fabric with spun-twisted yarns is employed in particular, as well as unidirectional composite panels manufactured with three techniques: hand-lay-up, vacuum bagging and resin infusion. The stiffness and strength behaviours are investigated under both monotonic and low-cycle fatigue loadings. The analysed material has, in particular, shown a typical bilinear behaviour under pure traction, with a knee yield point occurring at a rather low stress value, after which the material tensile stiffness is significantly r…