Search results for "72"
showing 10 items of 1431 documents
Suitability of Phytosterols Alongside Fatty Acids as Chemotaxonomic Biomarkers for Phytoplankton
2016
The composition and abundance of phytoplankton is an important factor defining ecological status of marine and freshwater ecosystems. Chemotaxonomic markers (e.g., pigments and fatty acids) are needed for monitoring changes in a phytoplankton community and to know the nutritional quality of seston for herbivorous zooplankton. Here we investigated the suitability of sterols along with fatty acids as chemotaxonomic markers using multivariate statistics, by analyzing the sterol and fatty acid composition of 10 different phytoplankton classes including altogether 37 strains isolated from freshwater lakes. We were able to detect a total of 47 fatty acids and 29 sterols in our phytoplankton sampl…
Allochthony, fatty acid and mercury trends in muscle of Eurasian perch (Perca fluviatilis) along boreal environmental gradients
2022
Environmental change, including joint effects of increasing dissolved organic carbon (DOC) and total phosphorus (TP) in boreal northern lakes could potentially affects food web energy sources and the biochemical composition of organisms. These environmental stressors are enhanced by anthropogenic land-use and can decrease the quality of polyunsaturated fatty acids (PUFAs) in seston and zooplankton, and therefore, possibly cascading up to fish. In contrast, the content of mercury in fish increases with lake browning potentially amplified by intensive forestry practises. However, there is little evidence on how these environmental stressors simultaneously impact beneficial omega-3 fatty acid …
The public–private sector wage gap in Latvia
2018
This study investigates the public-private sector wage gap in Latvia using microdata from the labour force survey. The severity of public sector wage cuts employed as a response to the economic crisis and subsequent recovery provides a test bed to analyse whether and how the public-private sector wage gap has adjusted after consolidation-driven wage cuts. Findings reveal that the observed wage gap is slightly in favour of the public sector; however, once differences in individual characteristics and selection effects are considered, results point to a private sector wage premium. Findings also suggest that the private sector wage premium has increased since the pre-crisis period. A signific…
FORECASTING THE LABOUR FORCE DEMAND AND SUPPLY IN LATVIA / LATVIJOS DARBO JĖGOS PAKLAUSOS IR PASIŪLOS MODELIAVIMAS
2008
The purpose of this paper is to analyse the problems of Latvian labour market and its possible development. An econometric model for labour force demand and supply forecasting is elaborated and it comprises 120 professions, 37 aggregated groups of professions and covers time period 2007–2030. The results of the quantitative and qualitative Employers’ Survey are analysed and taken into account. The novelty of this research study lies in the complex approach to the labour force demand and supply analyses and to the forecasts to the Latvian economy in general and for its 15 separate sectors. Santrauka Šio straipsnio tikslas – išanalizuoti Latvijos darbo rinkos problemas ir galimus pokyčius. Su…
The (Evolving) vineyard’s age structure in the valencian community, Spain. A new demographic approach for rural development and landscape analysis
2019
Vineyards have assumed a key role as rural landmarks in recent decades. Investigating vineyard dynamics and contexts may reveal various economic, cultural, and environmental aspects of rural landscapes, which can be linked to land-use changes and major soil degradation processes, including soil erosion. As a contribution to rural landscape studies, the purpose of this work is to investigate the spatial distribution of vineyard plots in the Valencian community, located in the eastern area of the Iberian Peninsula, focusing on the final product, the type of vineyard and how long each vineyard has been settled over time. The work provides a comprehensive analysis of a wine-growing landscape, c…
Designing biochar properties through the blending of biomass feedstock with metals: Impact on oxyanions adsorption behavior
2018
Metal-blending of biomass prior to pyrolysis is investigated in this work as a tool to modify biochar physico-chemical properties and its behavior as adsorbent. Six different compounds were used for metal-blending: AlCl3, Cu(OH)2, FeSO4, KCl, MgCl2 and Mg(OH)2. Pyrolysis experiments were performed at 400 and 700 °C and the characterization of biochar properties included: elemental composition, thermal stability, surface area and pore size distribution, Zeta potential, redox potential, chemical structure (with nuclear magnetic resonance) and adsorption behavior of arsenate, phosphate and nitrate. Metalblending strongly affected biochars' surface charge and redox potential. Moreover, it incre…
Drought-induced positive feedback in xylophagous insects: Easier invasion of Scots pine leading to greater investment in immunity of emerging individ…
2012
Abstract We studied the infestation rate of Scots pine Pinus sylvestris by xylophagous insects in relation to distance from forest lakes in eastern Latvia, northern Europe. In summers of 2008 and 2009, we felled 72 pines of approximately 65 years age. Sections of the logs were incubated in insect emergence traps. The trees located near lakes were significantly less infested by xylophagous insects than those sampled at greater distances from the lakes. We also tested the ability of Tomicus piniperda , the most abundant species of xylophagous insects in our samples, to resist the entomopathogenic fungus Beauveria bassiana . The results show that beetles captured near lakes were more susceptib…
Is there a latin american child migration law? An analysis of the ‘Advisory Opinion n. 21 on the rights of child migrants’ rendered by the Inter-Amer…
2019
In 2014, in response to the request of the Southern Cone countries, the Inter-American Court of Human Rights issued an Advisory Opinion on the rights of migrant children in an attempt to emphasize the minimum guarantees that the countries of the region should grant to this category of migrant, especially considering their hypervulnerability when compared to adult migrants. Such request, made in the light of the growing migratory flow of unaccompanied minors in the Americas, has led the Court to point to a number of rights that should be particularly guaranteed, such as the right to seek and receive asylum, non-criminalization, non-detention, and non-return of minors, culminating in the desi…
El Derecho Fundamental de Acceso a la Justicia de los Consumidores
2018
El acceso a la justicia es hoy en día un Derecho fundamental reconocido en la Constitución española en el artículo 24 a través del Derecho a la tutela judicial efectiva, así como el derecho a la asistencia justicia gratuita para aquellos que acrediten insuficiencia de recursos para litigar de acuerdo con el artículo 119 de la Constitución española. Sin embargo, estos derechos se desdibujan cuando intentamos reivindicar los derechos de los consumidores. En este trabajo analizamos cómo Cappelletti teorizó, a través de su obra General Report Access to justice, las tres olas básicas para conseguir derribar las barreras que impiden el acceso a la justicia. Esta teoría refleja los pasos seguidos …
FORMAS DEL PROCEDIMIENTO Y GARANTÍAS FUNDAMENTALES DEL PROCESO CIVIL
2010
Los organizadores de este encuentro académico nos han invitado a realizar aportaciones acerca del tema de "Oralidad y proceso", porque, según han apuntado, "el Tribunal Supremo de Justicia está elaborando un Proyecto de Reforma del Código de Procedimiento Civil basado en la oralidad". Este proyecto respondería a una orientación sintéticamente enunciada con un lema: "Del garantismo formal a la tutela judicial efectiva".