Search results for "convention"
showing 10 items of 594 documents
Carbon input threshold for soil carbon budget optimization in eroding vineyards
2016
Abstract Previous studies have documented that, relative to conventional tillage (CT), alternative soil management (reduced tillage, mulching, or cover crops) decreases soil erosion and increases soil organic matter (SOM) in vineyards. These previous studies, however, failed to consider the loss of soil organic carbon (SOC) with erosion that could occur with the adoption of agro-environmental measures (AEM) in a semiarid environment. Accordingly, the aims of this study were to determine whether changes in SOC content under AEM management are always positive and to develop a conceptual model for estimating the “SOC threshold”. The SOC threshold was defined as that level of SOC in an AEM-mana…
IMAGE ANALYSIS FOR DETECTING THE TRANSVERSE PROFILE OF WORN-OUT RAILS
2012
Abstract — Over its useful life a railway track is subject to many mechanical and environmental stresses which gradually lead to its deterioration. Monitoring the wear condition of the railway superstructure is one of the key points to guarantee an adequate safety level of the railway transport system; in this field, the use of high-efficiency laser techniques has become consolidated and implemented in diagnostic trains (e.g. the “Archimede train” and the “Talete train” ) which allow to detect the track geometric parameters (gauge, alignment, longitudinal level, cross level, superelevation defect, etc.) and the state of rail wear (vertical, horizontal, 45-degree etc.) with very high accurac…
Immediate Loading with Fixed Full-Arch Prosthesis in the Edentulous Patient: Treatment Protocol
2019
Immediate loading is basically a prosthetic concept. However, the surgical implantological planning is very important to ensure a primary stability in the total edentulous patient. This characteristic is crucial to allow immediate loading in this type of patients. For the first time, the incisional design has allowed the clinician to overview about the surgical side. Later, maybe, the bone will need an osteoplasty to regularize possible bone defects. To ensure primary stability, it can use methods to enhance primary stability as undersized drilling technique and use of osteotomes and bi-cortical anchorage implants. There are two main protocols to obtain temporary immediate loading full-arch…
In situ study of the sintering of a lead phosphovanadate in an Environmental Scanning Electron Microscope
2011
cited By 3; International audience; The in situ sintering of a powder of Pb3(VO4) 1.6(PO4)0.4 composition was performed in an Environmental Scanning Electron Microscope. The electric current induced by the electron beam was found to reduce the effective temperature of sintering as well as to accelerate the kinetics of shrinkage of a cluster composed of sub-micrometric grains of material. The presence of the residual current flow in the cluster during observation for in situ experiments helps to reduce the apparent sintering temperatures from 50 to 150 °C compared to conventional heating conditions without current. © 2011 Elsevier B.V. All rights reserved.
Culture, Biodiversity and Endogenous Development: introducing the BioCultural Community Protocols
2012
Induced seismicity response of hydraulic fracturing: results of a multidisciplinary monitoring at the Wysin site, Poland
2018
Abstract Shale oil and gas exploitation by hydraulic fracturing experienced a strong development worldwide over the last years, accompanied by a substantial increase of related induced seismicity, either consequence of fracturing or wastewater injection. In Europe, unconventional hydrocarbon resources remain underdeveloped and their exploitation controversial. In UK, fracturing operations were stopped after the Mw 2.3 Blackpool induced earthquake; in Poland, operations were halted in 2017 due to adverse oil market conditions. One of the last operated well at Wysin, Poland, was monitored independently in the framework of the EU project SHEER, through a multidisciplinary system including seis…
Effects of unconventional monetary policy on income and wealth distribution: Evidence from United States and Eurozone
2019
As an answer to the “Great Recession” and Zero Lower Bound problem, main central banks had to use unconventional monetary policy (UMP). This research focuses on the distributive effects of these measures on household income and household wealth in the United States of America (USA) and the Eurozone. For this purpose, this paper presents four models that were constructed using the Structural Vector Autoregressive methodology (SVAR). The results suggest that the UMPs applied by the Federal Reserve (FED) in the USA could increase wealth and income inequality through the portfolio channel. However, the same results were not observed in the Eurozone. Key words: United States of America, Eurozone…
Unconventional monetary policy reaction functions: evidence from the US
2020
Abstract We specify unconventional monetary policy reaction functions for the Fed using linear and nonlinear econometric frameworks. We find that nonstandard policy measures are largely driven by the dynamics of inflation and the output gap, with the effect being particularly strong during QE rounds. Moreover, we uncover the presence of asymmetry and regime dependence in central bank’s actions since the global financial crisis, especially concerning the response of the term spread and the shadow short rate to the growth rate of central bank reserves. From a policy perspective and given the lack of a systematic response of monetary policy to asset price growth in nonstandard times, our findi…
Juridiskā zinātne, Nr.6
2014
Journal “Law” of the University of Latvia is financed by the Faculty of Law of the University of Latvia
The EU’s Role in International Climate Change Policy-Making: A Global Leader in Decline?
2013
This chapter assesses the European Union’s (EU) role in international climate change policy-making by comparing the EU’s degree of goal attainment at the United Nations Framework Convention on Climate Change (UNFCCC) Conference of the Parties (COP) negotiations in Copenhagen in 2009 and Cancun in 2010. By making use of three analytical factors (coherence, the opportunity structure and politicisation) we assess the outcomes of both negotiations for the EU. The Durban negotiations of 2011 are touched upon in the conclusions.