scholarly journals Multi-Secular Lead (Pb) Contamination on a Regional Scale: Comparative Analysis of the Grand-Maclu and Saint-Point Lakes in the Jura Area, France

2011 ◽  
Vol 1 ◽  
pp. 1-10 ◽  
Author(s):  
R. Nedjai ◽  
C. Nguyen-Trung ◽  
N. Messaoud-Nacer
Keyword(s):  
Comparative Analysis ◽  
Regional Scale ◽  
Pb Contamination

SUSTAINABLE DEVELOPMENT IN AGRICULTURE FROM AREAS WITH DIFFERENCES IN CONDITIONS OF RESOURCES IN THE LIGHT OF DATA OF AGRICULTURAL CENSUS (NATIONAL AND REGIONAL SCALE)

2017 ◽  
Vol XIX (4) ◽  
pp. 180-186
Author(s):  
Katarzyna Smędzik-Ambroży
Keyword(s):  
Sustainable Development ◽  
Comparative Analysis ◽  
Regional Scale ◽  
Agricultural Sustainability ◽  
Social Dimensions ◽  
Agricultural Census

The aim of the article was to assess the level of sustainability of agriculture from areas with differences in conditions of resources in the scales: national (regions in Poland) and regional (Wielkopolska counties). For this purpose was made a comparative analysis of the indicators of agricultural sustainability in economic, environmental and social dimensions with using the data from the 2002 and 2010 agricultural censuses. It was found that in the case of environmental and social dimensions of sustainable development in agriculture were different directions of change in agriculture in Poland and in the Wielkopolska region.

scholarly journals COMPARATIVE ANALYSIS OF GLOBAL DIGITAL ELEVATION MODELS AND ULTRA-PROMINENT MOUNTAIN PEAKS

2016 ◽  
Vol III-4 ◽  
pp. 17-23 ◽  
Author(s):  
Carlos H. Grohmann
Keyword(s):  
Comparative Analysis ◽  
Digital Elevation Models ◽  
Full Range ◽  
Regional Scale ◽  
Comparative Assessment ◽  
Moving Window ◽  
Scale Analysis ◽  
Smoothing Effect ◽  
New Techniques ◽  
Digital Elevation

Global Digital Elevation Models (GDEMs) are datasets of vital importance for regional-scale analysis in areas such as geomorphology, [paleo]climatology, oceanography and biodiversity. In this work I present a comparative assessment of the datasets ETOPO1 (1’ resolution), GTOPO30, GLOBE, SRTM30 PLUS, GMTED2010 and ACE2 (30”) against the altitude of the world’s ultra prominent peaks. GDEMs’ elevations show an expected tendency of underestimating the peak’s altitude, but differences reach 3,500 m. None of the GDEMs captures the full range of elevation on Earth and they do not represent well the altitude of the most prominent peaks. Some of these problems could be addressed with the release of NASADEM, but the smoothing effect caused by moving-window resampling can only be tackled by using new techniques, such as scale-adaptative kernels and curvature-based terrain generalisation.

scholarly journals CHANGES IN THE INCOMES AND EXPENDITURES OF HOUSEHOLDS IN POLAND AND THEIR REGIONAL RELATIONS

2021 ◽  
pp. 40-53
Author(s):  
Beata Kasprzyk ◽  
Małgorzata Leszczyńska
Keyword(s):  
Comparative Analysis ◽  
Retrospective Analysis ◽  
Economic Condition ◽  
Explanatory Variable ◽  
Regional Scale ◽  
Geographical Area ◽  
Financial Situation ◽  
Trend Functions ◽  
Econometric Approach ◽  
Point Of Reference

The article assesses the financial situation of households in 2000-2019 in prospect of changes of incomes and expenditures in Poland. It has been assumed, as a point of reference, that dispersionof the analysed processes is dependent on geographical area– therefore regional scale was applied. To the analysis and comparison the data from the researches on households budgetsperformed by GUS were used. Adopting simultaneously an econometric approach (considering the time (years 2000-2019) as independent, explanatory variable) analytical trend functions wereestimated. A retrospective analysis of the incomes and expenditures of the population of Poland indicates the growing trends. Regional comparative analysis of households allows to drawconclusions that level of economic condition is very diversified.

scholarly journals Monitoring of Contaminants in Nestling Bald Eagles of Grand Teton National Park

2006 ◽  
Vol 30 ◽  
pp. 123-135
Author(s):  
George Montopoli ◽  
Hank Harlow ◽  
Andy Byerly ◽  
Susan Wolff ◽  
Susan Patla
Keyword(s):  
Comparative Analysis ◽  
National Park ◽  
Nest Site ◽  
Fold Increase ◽  
Molar Ratio ◽  
Bald Eagles ◽  
Geometric Means ◽  
Raw Data ◽  
Pb Contamination ◽  
Contaminant Loads

We report on contaminants identified in nestling bald eagles of Grant Teton National Park (GTNP) and the Snake River Unit (SRU), Wyoming, during summers of 2006 and 2007. We focus primarily on mercury (Hg), lead (Pb), and selenium (Se) because each was detected in all nestlings during both summers at moderate levels. Independent t-tests were performed both on the raw data and log­transformed data (using the natural logarithm) as a comparative analysis to investigate if contaminant loads had significantly increased from summer 2006 to summer 2007. Also, as a comparative analysis and alternative procedure, nest site was treated as the experimental unit and a repeated-measures analysis (longitudinal study) was conducted on the raw data to investigate if contaminant loads had significantly increased from summer 2006 to summer 2007. Results of the analysis indicate that levels of Se essentially remained unchanged from summer 2006 to summer 2007 (p=0.466, log-transformed data). Levels of Pb in nestlings increased from summer 2006 to summer 2007 (p=0.000, log-transformed data). There was no difference in levels of Hg in nestlings from summer 2006 to summer 2007 (p=0.058, log-transformed data). The molar ratio (2.54ppm Se: 1 ppm Hg) of Se to Hg did not change from 2006 to 2007 (p=0.337, raw data), although a 45% decrease in molar ratio was observed. Analyses of contaminants (using geometric means) in the blood of nestlings (from summer 2006 to 2007) showed a 64% increase in Hg, a five-fold increase in Pb ( 481% ), and a 21% increase in Se. Potential localized sources of Pb contamination should be identified and removed from the proximity of any nest site(s) and the study area in general. Advancing global climate change and associated desiccation and emolation of temperate and boreal forests, exacerbated by extensive clear-cutting may increase poisoning of aquatic ecosystems with high levels of contaminants, especially Hg, in the future. A monitoring program may be indicated to identify potential long-term changes within the GYE. (p=O.OOO, log-transformed data). There was no difference in levels of Hg in nestlings from summer 2006 to summer 2007 (p=0.058, log­ transformed data). The molar ratio (2.54ppm Se: 1ppm Hg) of Se to Hg did not change from 2006 to 2007 (p=0.337, raw data), although a 45% decrease in molar ratio was observed. Analyses of contaminants (using geometric means) in the blood of nestlings (from summer 2006 to 2007) showed a 64% increase in Hg, a five-fold increase in Pb (481%), and a 21 % increase in Se. Potential localized sources of Pb contamination should be identified and removed from the proximity of any nest site(s) and the study area in general.

scholarly journals COMPARATIVE ANALYSIS OF GLOBAL DIGITAL ELEVATION MODELS AND ULTRA-PROMINENT MOUNTAIN PEAKS

2016 ◽  
Vol III-4 ◽  
pp. 17-23
Author(s):  
Carlos H. Grohmann
Keyword(s):  
Comparative Analysis ◽  
Digital Elevation Models ◽  
Full Range ◽  
Regional Scale ◽  
Comparative Assessment ◽  
Moving Window ◽  
Scale Analysis ◽  
Smoothing Effect ◽  
New Techniques ◽  
Digital Elevation

Global Digital Elevation Models (GDEMs) are datasets of vital importance for regional-scale analysis in areas such as geomorphology, [paleo]climatology, oceanography and biodiversity. In this work I present a comparative assessment of the datasets ETOPO1 (1’ resolution), GTOPO30, GLOBE, SRTM30 PLUS, GMTED2010 and ACE2 (30”) against the altitude of the world’s ultra prominent peaks. GDEMs’ elevations show an expected tendency of underestimating the peak’s altitude, but differences reach 3,500 m. None of the GDEMs captures the full range of elevation on Earth and they do not represent well the altitude of the most prominent peaks. Some of these problems could be addressed with the release of NASADEM, but the smoothing effect caused by moving-window resampling can only be tackled by using new techniques, such as scale-adaptative kernels and curvature-based terrain generalisation.

1207: Failed Pyeloplasty in Children: Comparative Analysis of Retrograde Endopyelotomy VS. Re-do Pyeloplasty

2007 ◽  
Vol 177 (4S) ◽  
pp. 398-398
Author(s):  
Luis H. Braga ◽  
Joao L. Pippi Salle ◽  
Sumit Dave ◽  
Sean Skeldon ◽  
Armando J. Lorenzo ◽  
...  
Keyword(s):  
Comparative Analysis
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