Search results for "Exchange"
showing 10 items of 2035 documents
Notes on the Spanish Supreme Court Ruling That Considers Riders to Be Employees
2020
Spain is one of the countries with highest levels of judicialisation of the dispute over the classification of platform working. Dozens of rulings have been issued in recent years. Most have pointed out the labour relation of platform workers in the transport sector, although some have argued that they were truly self-employed. This contradiction in judicial doctrine has allowed / forced the Spanish Supreme Court to rule on the matter. This ruling of 25 September 2020 (rec. 4746/2019) was issued by the plenary session of the Supreme Court on social matters, the decision being adopted unanimously by all the magistrates. The ruling has its origins in the case of a delivery rider who filed an …
REDU : revista de docencia universitaria
2009
[ES] En este artículo se recoge una experiencia que se está diseñando para la asignatura de Sistema Financiero que consistente en diseñar un juego de rol (un juego de simulación) como recurso formativo y gestionarlo a través de Google-Docs, con el objetivo de que el alumno sea capaz de comprender el funcionamiento básico de la negociación en un mercado bursátil. El juego de rol consiste en: diseñar un sistema de juego que establezca las reglas de negociación y determinar los factores aleatorios que pueden afectar positiva o negativamente al valor de las acciones; formar un grupo de alumnos que asuma el papel de Sociedad Rectora y varios grupos que asuman el papel de dealers con el objetivo …
Legally protected cultural goods and bankruptcy proceedings
2020
This paper deals with general problems of legal aims of bankruptcy proceedings in connection with the aims of heritage protection – issues built by completely different systems of values. Bankruptcy is designed for protecting pecuniary interest of a limited group of people, while cultural heritage is protected for present and future generations, despite its current commercial significance. In the global environment, bankruptcy of a cultural goods owner usually has a cross-border range but national bankruptcy legislations and laws devoted to heritage protection differ in very serious aspects. For this reason the paper is not limited to any concrete legal order. There are discussed some impor…
Cogeneration: a regulatory framework toward growth
2005
Abstract After having defined the general rules for the European liberalised energy market, new actions are needed to improve the energy system. In the rising common framework, the environmental policies and particularly the cost-internalising actions are being empowered, in order to favour improvements in conversion efficiencies and to promote low environmental impact technologies. The emerging EU policy for the promotion of cogeneration and trigeneration plants that fixes the eligibility criteria for high conversion efficiency plants is here discussed. On the basis of thermodynamic remarks and of a comparative analysis of the evaluation criteria applied to most industrialised countries, t…
Heavy metal sorption in the lichen cationactive layer.
2007
Results of copper ion sorption in lichens owing to the ion exchange between the surroundings (aqueous solution) and the lichen cationactive layer have been presented. It indicates that the course of sorption of these ions, similarly as in the case of cations of other heavy metals, depends on the concentration and type of cations naturally found in lichen surroundings: H+, Na+, K+, Mg2+ and Ca2+. A determination method of heavy metal concentration in lichen surroundings has been proposed. It consists in exposure of transplanted lichens in the presence of salts that provide precisely determined, artificial salinity of precipitation with which the lichens are in contact. The studies were condu…
Excited-state lifetimes of [Fe (bipy)3]2+ and [Fe(phen)3]2+
1990
Abstract In the low-spin [Fe(bipy)3]2+ (bipy = 2,2′,bipyridine) and [Fe(phen)3]2+ (phen = 1,10-phenanthroline) complexes an excited high-spin 5T2 ligand field state can be populated by irradiating into the 1MLCT absorption band at 530 nm. The lifetimes of this excited state at low temperatures are reported for [Fe(bipy)3]2+ doped into [Zn(bipy)3] (PF6)2 and [Zn(bipy)3] (BF4)2 and for [Fe(phen)3]2+ and [Fe(bipy)3]2+ embedded in the ion exchange polymer Nafion. For [Fe(bipy)3]2+ in [Zn(bipy)3](PF6)2 the observed lifetimes decrease from 1600 ns at 10 K to 14 ns at 125 K.
Strategies for Progress: Looking for Firm Ground
2015
Over the last thirty years, there have been various and increasing efforts made to establish effective and consistent public service interpreting and translation. Good progress has been made but there are impasses. This paper attempts to stand back and look objectively at where, and more importantly how, we might proceed from here. This could be said to be a turning point for legal interpreting for two reasons. Firstly, enough time has elapsed for us to copy our scientific colleagues, who view the process of exploring and eliminating unsatisfactory approaches overtly, so that what does not work is recognised and discarded. Secondly, this process of exploration has enabled us to clarify and …
Purification of hydroperoxide lyase from green bell pepper (Capsicum annuum L.) fruits for the generation of C6-aldehydes in vitro.
2002
The aim of this work was to compare the efficiency of different extracts of hydroperoxide lyase from green bell peppers in producing aldehydes: a crude extract, a chloroplastic fraction, and a purified enzyme were investigated. From a crude extract, the HPO lyase was purified by ion-exchange chromatography with a 22.3-fold increase in purification factor. Analysis by SDS-PAGE electrophoresis under denaturating conditions showed only one protein with a molecular weight of 55 kDa, whereas size-exclusion chromatography indicated a molecular weight of 170 kDa. A maximum of 7500 mg of aldehydes per g of protein was obtained with the purified enzyme within 20 min of bioconversion compared to 392 …
Stir bar sorptive-dispersive microextraction for trace determination of triphenyl and diphenyl phosphate in urine of nail polish users
2018
Abstract This work describes a new analytical method useful for monitoring the human exposure to the endocrine-disrupting plasticizer triphenyl phosphate (TPP) via nail polish use. The method allows trace determination of this parent compound and its main metabolite, namely diphenyl phosphate (DPP), in urine samples of nail polish users. The method is based on a novel microextraction technique termed stir bar sorptive-dispersive microextraction (SBSDME) using a magnetic composite made of CoFe2O4 magnetic nanoparticles embedded into a mixed-mode weak anion exchange polymer (Strata™-X-AW), followed by liquid chromatography-tandem mass spectrometry (LC–MS/MS). The main parameters involved in t…
Sex–biased maternal investment in voles: importance of environmental conditions
2004
Adaptive bias in sex allocation is traditionally proposed to be related to the condition of mothers as well as to the unequal fitness values of produced sexes. A positive relationship between mother condition and investment into male offspring is often predicted. This relationship was also recently found to depend on environmental conditions. We studied these causalities experimentally using a design where winter food supply was manipulated in eight outdoor-enclosed populations of field voles Microtus agrestis. At the beginning of the breeding season in spring, food-supplemented mothers seemed to be in a similar condition, measured as body mass, head width, body condition index and parasite…