oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

4 ( 1 )

3 ( 1 )

2020 ( 9 )

2019 ( 128 )

Custom range...

Search Results: 1 - 10 of 83271 matches for " Anna Maria Sulej "
All listed articles are free for downloading (OA Articles)
Page 1 /83271
Display every page Item
Contamination of Runoff Water at Gdańsk Airport (Poland) by Polycyclic Aromatic Hydrocarbons (PAHs) and Polychlorinated Biphenyls (PCBs)
Anna Maria Sulej,?aneta Polkowska,Jacek Namie?nik
Sensors , 2011, DOI: 10.3390/s111211901
Abstract: Airport runoff can contain high concentrations of various pollutants, in particular polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs), the environmental levels of which have to be monitored. Airport runoff water samples, collected at the Gdańsk-R?biechowo Airport from 2008 to 2009, were analysed for PAHs and PCBs by gas chromatography. The aromatic fractions were separated by liquid-liquid extraction and analysed by GC/MS. Total PAH concentrations were 295–6,758 ng/L in 2008 and 180–1,924 ng/L in 2009, while total PCB levels in 2008 ranged from 0.14 to 0.44 μg/L and in 2009 from 0.06 to 0.23 μg/L. The PAH and PCB compositions in airport runoff waters were examined over a range of spatial and temporal scales to determine distributions, trends and possible sources. This pollution is mainly pyrolytic and related to anthropogenic activity. There were significant differences between the samples collected in the two seasons. An understanding of the magnitude of contamination due to airport runoff water is important for the effective management of airport infrastructure.
Próby korelacji serologicznych markerów celiakii ze stopniem zaniku kosmków jelitowych, wiekiem i p ci pacjentów z celiaki
Krystyna Karczewska,Jacek Kasner,Maria ?ukasik,Jadwiga Sulej
Pediatria Wspó?czesna , 2004,
Abstract: Celem pracy by a próba korelacji miana przeciwcia p-endomysium (IgAEmA) i p-transglutaminazie tkankowej (tTGAb) oraz stopnia zaniku kosmków na ró nych etapach diagnostyki celiakii u pacjentów w ró nym wieku. W pracy wykazano du zgodno dodatnich i ujemnych wyników badań serologicznych we wszystkich grupach diagnostycznych. Nie wykazano natomiast korelacji pomi dzy warto ciami tTGAb i IgAEmA.
Trudno ci diagnostyczne w rozpoznaniu pó no ujawnionej celiakii u doros ych
Krystyna Karczewska,Jacek Kasner,Maria ?ukasik,Jadwiga Sulej
Polish Gastroenterology , 2002,
Abstract: Cel pracy: Celem pracy by o wykazanie trudno ci diagnostycznych w rozpoznawaniu celiakii u ludzi doros ych. Materia i metody: Przedmiotem retrospektywnej analizy by o 6 kobiet w wieku od 30 do 50 lat, u których w latach 1990-2001 w Klinice Pediatrii ambulatoryjnie rozpoznano celiaki . Pacjentki te przed rozpoznaniem by y wielokrotnie hospitalizowane i diagnozowane bez efektu w o rodkach internistycznych, ginekologicznych i psychiatrycznych. W wywiadzie pacjentki zg asza y objawy depresji, spadku masy cia a, przewlek e biegunki, poronienia, bóle kostno-mi niowe. Rozpoznanie celiakii oparto na stwierdzeniu obecno ci przeciwcia IgAEmA w klasie IgA i IgG oraz zaniku kosmków b ony luzowej jelita w pobranych endoskopowo bioptatach jelita. Wyniki: Zastosowana dieta przynios a szybkie ust pienie objawów chorobowych. Wnioski: Celiakia u doros ych mo e przebiega nietypowo pod mask wielu chorób.
ABC: Evolution, Problems of Implementation and Organizational Variables  [PDF]
Anna Maria Moisello
American Journal of Industrial and Business Management (AJIBM) , 2012, DOI: 10.4236/ajibm.2012.22008
Abstract: This paper will reflect on the evolution of the functionality of ABC model, focusing attention on the variables that determine success or failure in its implementation. To this end the paper, through the empirical and theoretical literature review, will: trace the evolution of the ABC model, while highlighting the implications of the implementation process, analyze the concept of success in its implementation and discuss the determinants that influence the outcome, focusing on the organizational variables that firm have to control in order to succeed with ABC.
Evaluation of the Effectiveness of a 4-Months Continuous Injection of a Gas Mixture (CO2 and Inert Gases) on Legionella Contamination of a Hot Water Distribution System  [PDF]
Maria Anna Coniglio
Health (Health) , 2015, DOI: 10.4236/health.2015.77096
Abstract: Within the biofilm and scales Legionella is less far susceptible to the effects of the most frequently used biocides. The objective of this study was to evaluate the effect of a 4-months continuous injection of a gas mixture (CO2 and inert gas) in the hot water distribution system of a large hotel colonized by L. pneumophila sg3 on limiting biofilm formation and scales and in turn Legionella growth. Before the continuous injection of the gas mixture, out of the 15 sampling points examined every month 60% were colonized by Legionella (mean concentrations of 102 cfu/L in the boilers and the return loop, and 104 cfu/L in taps and showers). One week after the injection of the gas mixture and daily fluxing of the distal outlets, the level of colonization decreased (<103 cfu/L). When it was decided to flux all the distal outlets only 1 day per week the mean concentration of Legionella increased again (>104 cfu/L) in all the sampling points. Thus, cleaning of the boilers was performed and distal outlets were again fluxed daily. One week after the level of contamination decreased again (<102 cfu/L). Nonetheless, the colonization was not eliminated and when fluxing of the distal outlets was not performed every day the mean concentrations of Legionella raised up to >104 cfu/L. Results indicate that the gas mixture was able to reduce the level of colonization by Legionella only because associated to the fluxing of the distal outlets.
Sustainability of the Greek Government Net Borrowing: An Analytical and Comprehensive Exposition  [PDF]
Anna Maria Mouza
Theoretical Economics Letters (TEL) , 2016, DOI: 10.4236/tel.2016.64081
Abstract: This paper aims to investigate the sustainability of the general Greek government net borrowing, applying novel techniques for both to determine the order of integration of a difference stationary series and to specify the final form of the co-integration equation. Co-integration analysis was applied, and robust rules of thumb are suggested taking into account the individuality of the case under consideration. The empirical application revealed that the Greek debt is not sustainable. Further, we introduce consistent planning methods to obtain optimal time paths for both government revenue and spending, so as sustainability of the debt to become a feasible task under certain assumptions. Finally, we suggest a policy making approach on macrolevel combining co-integration with optimal control.
The Fragmentation of Entrepreneurial Functionand the Role of External Control on Management Behavior  [PDF]
Pietro Gottardo, Anna Maria Moisello
iBusiness (IB) , 2011, DOI: 10.4236/ib.2011.34045
Abstract: Starting from the interpretation of corporate governance as the outcome of the fragmentation of entrepreneurial power and the related agency problem, the paper stresses the strict relationship between management control and risk management. This issue implies the need of effective internal and external controls, i.e. board implementation and supervision of a consistent control function and auditing, but the market and public regulatory authorities give the most important external control system. The paper focuses next on the role of the Codes of Conduct, the critical aspects of their effectiveness and other key issues in the governance of corporations highlighted by the last financial and economic crisis.
Monitoring of Pesticides Residues in Italian Mineral Waters by Solid Phase Extraction and Gas Chromatography Mass Spectrometry  [PDF]
Anna Maria Tarola, Raffaella Preti
Journal of Water Resource and Protection (JWARP) , 2012, DOI: 10.4236/jwarp.2012.410097
Abstract: Twenty-two pesticides and metabolites, selected on the basis of regional priority lists, were surveyed in thirty Italian mineral waters springs for three years by a procedure based on solid phase extraction in combination with gas chromatography coupled with mass spectrometry detection. The procedure proved to be simple, sensitive and reliable, the limits of detection and relative standard deviations were respectively in the range of 0.002 - 0.04 μg/L and 3% - 7%, recoveries ranged from 86% to 105% at the European Union Maximum Acceptable Concentration (MAC). Pesticide residues were detected in just one of the ninety water samples analyzed but no one exceeding the MAC. These results demonstrate the good quality of Italian mineral waters, not forgetting the need of constant revision and update of the priority list of pollutants.
Tourism as an Exit Strategy at Crisis Times  [PDF]
Angela Besana, Anna Maria Bagnasco
Open Journal of Applied Sciences (OJAppS) , 2015, DOI: 10.4236/ojapps.2015.53009
Abstract: The contemporary crisis is giving evidence of failing macroeconomic theories and policies, after decades of focusing on the aggregate domestic demand and the role of the public expenditure. The contemporary crisis has shown the weakness of fiscal policy. With very low interest rates, the monetary policy does not seem to provide an alternative exit strategy out of the crisis, too. In this paper we discuss the hypothesis that GDP can still be a reliable estimate of growth. Nevertheless, at crisis times, only if the focus is on the foreign demand like International Tourism Receipts and Exports, and Exports can be an exit strategy. One component of Exports and International Tourism Receipts are worthy of attention. Thanks to a cluster analysis of per year variations of International Tourism Receipts (ITRs), GDP and Exports (World Bank Database) from 2007 to 2011, average positive variations of GDPs are matching with positive ITRs and Exports for “clusters” of countries. Performances of Europe and USA are worse than China, Brazil, India and South Africa and these continents and countries are separated in two different clusters. This result can be related to an increase of trade in emerging economies more than in mature ones, whose exit out of the crisis is much more demanding. The research confirms that Tourism and Exports are having an impact on the growth at different intensities (Europe and America vs. Asia) at crisis times.
International Fragmentation of Production and Trade Volatility: An Analysis for the European Countries  [PDF]
Anna Maria Falzoni, Lucia Tajoli
Modern Economy (ME) , 2015, DOI: 10.4236/me.2015.63032
Abstract: In the last years, world exports have displayed very strong fluctuations, much higher than GDP fluctuations. Some recent works tried to understand the causes of these fluctuations, and in particular if these strong swings in world trade flows are related to the growing weight of intermediates in trade and to the phenomenon of international fragmentation of production (IFP) or international outsourcing. This is the issue addressed in this paper. We analyze the influence of international fragmentation of production and trade in intermediate goods on the fluctuations of trade flows for the EU countries. After assessing the relevance of international trade in intermediate goods at the sector level using indices computed from the input-output tables of the EU countries, we test whether a significant relation exists between the extent of international fragmentation of production measured by this proxy and the volatility of trade flows, and the possible implications of these results.
Page 1 /83271
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.