Search results for "cycle"

Investigation on the Nitrogen Metabolism of Spruce Needles in Relation to the Occurrence of Novel Forest Decline

1988

Summary In order to obtain information on the nitrogen metabolism of undamaged and damaged spruce ( Picea abies ), investigations were performed in 1985 and 1986 on the activity of glutamine synthetase and on the content of free ammonium and soluble proteins in spruce needles. In addition, the chlorophyll content was determined. Needles from the second needle year and the seventh whorl were used. The investigations were carried out in pair comparison on a 20-year-old spruce plantation and in comparison with damage classes on an 80-year-old spruce plantation. Both the pair comparison and the contrasting of different damage groups show an unequivocal decrease of the chlorophyll content correl…

Economic and Environmental Assessment of Biomass Power Plants in Southern Italy

2022

In 2019, Europe adopted the New Green Deal as a strategic plan to become a competitive, resource-efficient, and driven economy by reducing its gas emissions and carbon footprint. Due the COVID-19 pandemic, this strategic plan was recently updated to expedite the green transition of European industries. Therefore, the present paper deals with the problem of deciding an appropriate size for a biomass plant that directly produces electric energy by means of two different conversion processes: combustion and gasification. After an initial estimation of the energy potential in western Sicily, GIS data of biomass growth were used to identify the appropriate size for the power plants under investi…

Bis-urea macrocycles with a deep cavity.

2015

Two configurational isomers of bis-urea macrocycles have been synthesized, and their neutral molecule recognition was studied by X-ray crystallography and (1)H NMR experiments. Cooperative action between the deep cavity and the urea groups and the influence of dipole alignments on molecular recognition are discussed.

Bis-urea macrocycles with a deep cavity

2015

Cytotoxicity of the Urokinase-Plasminogen Activator Inhibitor Carbamimidothioic Acid (4-Boronophenyl) Methyl Ester Hydrobromide (BC-11) on Triple-Neg…

2015

BC-11 is an easily synthesized simple thiouronium-substituted phenylboronic acid, which has been shown to be cytotoxic on triple negative MDA-MB231 breast cancer cells by inducing a perturbation of cell cycle when administered at a concentration equal to its ED50 at 72 h (117 μM). Exposure of cells to BC-11, either pre-absorbed with a soluble preparation of the N-terminal fragment of urokinase-plasminogen activator (uPa), or in co-treatment with two different EGFR inhibitors, indicated that: (i) BC-11 acts via binding to the N-terminus of the enzyme where uPa- and EGF receptor-recognizing sites are present, thereby abrogating the growth-sustaining effect resulting from receptor binding

Essays on Employment and Unemployment Transitions

2015

The Great Recession has led to important adjustments in the labour market of most developed countries and has dramatically affected the labour market in Spain. According to the Labour Force Survey, the Spanish unemployment rate has increased drastically from 8.5% in 2006 to 25% in 2012 (see the figure). In order to understand the unemployment rate it is important to consider both entry into and exit out of unemployment. This thesis addresses relevant questions for policymakers in line with the objectives of the Europe 2020 strategy. How does the Great Recession affect the patterns and determinants of durations of unemployment and new job matches? How did gender differences in labour market …

A Cross-Sectional Analysis of Growth and Profit Rate Distribution: The Spanish Case

2022

We analyse the time evolution of the empirical cross-sectional distribution of firms’ profit and growth rates. In particular, we analyse the conditional properties of the empirical distributions depending on the size of the firms and the business cycle phase. In order to do so, we employ the Laplace distribution as a benchmark, further considering the Subbotin and Asymmetric Exponential Power (AEP hereafter) distributions, to capture the potential asymmetry and leptokurtosis of the empirical distribution. Our results show that the profit rates of large firms are characterised by an asymmetric Laplace distribution with parameters largely independent of the business cycle phase. Small firms, …

L'originalité de juglar

1966

This is a version, slightly corrected in 2011 with regard to form, of a thèse complémentaire defended at the University of Paris in March 1966 (at the time, writing a "complementary thesis" in a domain adjacent to, but distinct from, economics proper was a requirement added to the doctorate in economics for participating in the national competition to become a university professor in economics). The subject of the thesis, supposedly in the domain of economic history, had been proposed by Professor Jean Lhomme. The contribution of Clément Juglar (1819-1905), whose name has remained associated with the business cycle, was deemed particularly important and original by Joseph Schumpeter in his …

KEYNES’S EUROPEANISM AS SHOWN IN “THE ECONOMIC CONSEQUENCES OF THE PEACE”

2012

European integration and enlargement, in the context of decreasing support of European country nationals, needs great men and great ideas standing with. J.M.Keynes proves in his book”The Economic Consequences of the Peace” that there is no other way for Europe than acts together. His economic reasons for which European countries “throb together” are presented here and supported with data. This article, with a historical approach, brings another important and strong view on the side of Europeanism.

Essays on labour market institutions and macroeconomic dynamics

2019

Labour market reforms play an important role in the public debate and policy recommendations. This thesis aims to find evidence on how labour market institutions are related to economic dynamics and adjustment. The thesis contains an introductory chapter and three essays. The first essay uses data of OECD countries to study whether differences in labour market institutions explain the differences in business cycle dynamics across OECD countries. The second and third essays use theoretical models to study centralized wage-setting and wage-setting coordination. The results of the first essay suggest that labour market institution variables have explanatory power for the heterogeneity in the v…