Search results for "Indicators"
showing 10 items of 539 documents
New reagent for the detection of sesquiterpene lactones by thin-layer chromatography.
1984
Capillary column gas chromatographic identification of sugars in honey as trimethylsilyl derivatives.
1987
A method for identifying carbohydrates (mono-, di- and trisaccharides) in honey is presented. It is based on the separate preparation of both trimethylsilyl ethers and oxime trimethylsilyl ethers of the sugars followed by their gas chromatographic separation on a fused-silica capillary column coated with OV-101 using temperature programming. From the two chromatograms, the number of peaks given by each derivatized sugar, their relative retention times and peak-area ratios are used for identification. The identities of two unidentified trisaccharide peaks are considered. Quantitative applications to honey sugar analysis are discussed.
Modular Approach to 9-Monosubstituted Fluorene Derivatives Using Mo(V) Reagents.
2016
Oxidative coupling using molybdenum(V) reagents provides fast access to highly functionalized 9-monosubstituted fluorenes. This synthetic approach is highly modular, is high yielding, and tolerates a variety of labile moieties, e.g. amides or iodo groups. The established protocol leads to promising precursors for pharmacologically important analogues of melatonin.
Early Effects of No-Till Use on Durum Wheat (Triticum durum Desf.): Productivity and Soil Functioning Vary between Two Contrasting Mediterranean Soils
2022
The diffusion of no-tillage (NT) is to be encouraged because of the benefits it can provide in terms of improving soil fertility and counteracting global warming and climate change as part of climate-smart agriculture practices. However, the introduction of this management can be difficult, especially in the first years of application, and can lead to unpredictable yield results depending on the soil type. Therefore, the aim of this experiment was to evaluate the early effect of NT use, compared to the conventional mouldboard ploughing (CT), on two different soils, a clay-loam (GAL) and a sandy-clay-loam soil (SMA), by monitoring a set of 43 different soil and plant variables that were expe…
Rozwój regionalny w ujęciu komparatywnym - na przykładzie Dolnego Śląska, Opolszczyzny i Górnego Śląska. Poziom rozwoju – analiza wybranych aspektów
2015
Artykuł zawiera analizę porównawczą poziomu rozwoju trzech polskich województw: dolnośląskiego, opolskiego i śląskiego. Za pomocą opracowanego miernika rozwoju regionalnego, autor analizuje cztery główne komponenty rozwoju – gospodarka, konkurencyjność i innowacje, kapitał ludzki, kapitał społeczny i jakość życia. Autor stawia tezę, że województwo najlepiej rozwinięte gospodarczo osiąga pozytywne wyniki także na pozostałych płaszczyznach analizy. Badania rozwoju regionalnego powinny być zatem wieloczynnikowe, gdyż proces ten związany jest nie tylko z gospodarką, ale wpływa również na sferę społeczną (np. warunki życia ludności) czy polityczną (konieczność prowadzenia polityki regionalnej uw…
Ekonomiskā krīze Baltijas valstīs
2017
Diplomdarba tēma ir “Ekonomiskā krīze Baltijas valstīs”. Ekonomomiskā krīze Baltijas valstīs var tikt analizējama no vairākiem aspektiem, gan no kvalitatīvās puses – no teorijas, gan arī kvantitatīvās – statistiskās, pamatojoties uz ekonomiskajiem rādītājiem. Baltijas valstīs ekonomiskā krīzes cēloņsakarības ir saistītas gan no globālā aspekta, sākoties finanšu krīzes procesiem Amerikas Savienotajās Valstīs, galvenokārt, banku sektora dēļ, ka arī vēlāk procesiem pārjeot arvien globālāka mērogā, tai skaitā citu pasuales banku mērogā. Visbiežāk ekonomiskās krīzes pārvarēšanas un novēršanas pasākumi tiek veikti ar finanšu isnturmentiem, politikas un piesardības pasākumiem. Problēmas būtība: Ek…
TEACHING ACTIVITY AND EVALUATION OF CRITICAL THINKING IN PRIMARY SCHOOL
2019
The aim of this work is to verify the efficacy of a training program focused on the enhancement of critical thinking skills, realized with a group of children between the ages of 9 and 11 years, in the last year of primary school in the Palermo area. At school as in life, critical thinking skills are fundamental; these skills concern above all the integrated processing of information, the correct use of reasoning, the adequate formulation of judgments, the taking of autonomous and controlled choices. Technological expansion fuels the children and young people’s difficulties to organize the knowledge data, coming from several sources, in a coherent and logical way as well as to evaluate info…
An analytical review of destination competitiveness´ indicators
2015
The role of indicators in assisting tourism planners and decision-makers in evaluating performances, setting targets and anticipating future scenarios has been widely acknowledged by scholars. The purpose of this study is to provide an evaluation of existing composite indicators of tourism destination competitiveness (TDC) and propose a statistical toolbox/protocol to assess their effectiveness in empirical evaluations. We built the study’s protocol by enriching the OECD technical guidelines to build composite indicators. The protocol contains now 15 criteria used to examine the reviewed indicators, among these two useful quality measures. Ten studies were identified as providing a composit…
L'articulation des usages diagnostique et interactif d'un seul et même système de contrôle de gestion : le cas d'un système d'indicateurs environneme…
2013
With the conceptual framework of control levers of Simons (1995), this article shows how to coordinate diagnostic and interactive uses of the same "management control system" (in this case a system of environmental indicators) for the deployment and the emergence of new strategies. In contrast to the literature, we propose an articulation "in parallel" of levers of control as alternative to sliding levers of control. These results are obtained from a case study in a French wine and spirits subject to large strategic environmental uncertainties.
Detection of spatio-temporal local structure on seismic data
2017
For the description of the seismicity of an area, the comparison between local features of background and induced events could be a new perspective of research. In spatio-temporal point process, local second-order statistics provide information on the relationships of each event and its nearby events. In this paper, we use a test based on local indicators of spatio-temporal association (LISTA functions) for identifying different local structures comparing the two previous sets of events. We present a simulation study on the test and show the main results of the application on Greece earthquake data.