OALib Journal期刊

ISSN: 2333-9721




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2019 ( 18 )

2018 ( 139 )


匹配条件: “LIUDMILA MARIA MEHEDINTEANU” ,找到相关结果约71073条。
Dambovita - 50 km between good quality and ecological disaster
Cinq Continents , 2011,
Abstract: Dambovita - 50 km tra buona qualità e disastro ecologico. Dambovita è il principale corso d'acqua che attraversa Bucarest. Quindi, è l'acqua collettore delle acque reflue, industriali e pluviale generati all'interno della città, arrivando prima attraverso la rete fognaria al impianto di depurazione Glina. Quest’ultimo, però, non è ancora funzionale, dumping le aque reflue nel fiume senza trattamento preliminare, che portano ad una forte degradazione dellaqualità dell'acqua, che è in clasa scarsa qualità incorniciata iniziando dall punto della perdita Glina fino a che la fuoriuscita in Arges. Fare determinazioni delle principali proprietà fisiche e chimiche delle acque in punti scelti in modo da fornire una panoramica di come la loro qualità è subito a causa delle fonti diinquinamento nella zona di Bucarest, un generale degrado del fiumeDambovita da monte a torrente fu trovato, le cui acque contaminate influiscono la qualità condizione dell collezionista Arges, così come la freatica che si trova ad una distanza di diverse centinaia di metri da esso.
Knowledge of diabetic patients about their disease before and after implementing a diabetes education program
Otero, Liudmila Miyar;Zanetti, Maria Lúcia;Ogrizio, Michelle Daguano;
Revista Latino-Americana de Enfermagem , 2008, DOI: 10.1590/S0104-11692008000200010
Abstract: the purpose of this quasi-experimental, prospective and comparative study is to evaluate the knowledge that diabetic patients have about their disease before and after implementing a diabetes education program. fifty-four diabetic patients participated in the study, which occurred from april 2004 to april 2005. data collection was performed using a questionnaire. the study population was characterized as adult and elderly subjects, with ages between 29 and 78 years; 60 years, on the average; most participants were female 40/54 (74.1%); white 32/54 (59.3%); married 37/54 (68.5%); retired 23/54 (42.6%); with incomplete primary education 32/54 (59.3%); and an income of one to two minimum wages 16/54 (29.6%). the patients' knowledge regarding their disease increased significantly (p<0.05); especially considering the general topics concerning diabetes mellitus: concept of the disease, physiopathology and treatments; other topics that stood out were physical activity and nutrition.
Interrelation of Chemical Elements Content in Plants underConditions of Primary Soil Formation  [PDF]
Vladimir Mukhomorov, Liudmila Anikina
Open Journal of Soil Science (OJSS) , 2011, DOI: 10.4236/ojss.2011.11001
Abstract: It is presented the results of a long-term and intensive experiment, which models the processes of primary soil formation under controlled agro-ecosystems. The influence of mineral substrate transformation is analyzed on the content of chemical elements in plants tomato, and wheat. For the first time have been established dynamic synergistic and antagonistic interrelations between the chemical elements in a various bodies of the plant (roots, reproductive bodies, stems, and leaves). Using methods of the theory of information was revealed dynamics of collective state of chemical elements in the plants. It is shown that the collective states of the chemical elements which defined by the information function is strictly differentiated for different plant bodies, and have hierarchic order. We analyzed the following chemical elements Si, Al, Fe, Mg, Ca, K, P, S, Cl, Na, Mn, Zn.
Regional models of metal production in Western Asia in the Chalcolithic, Early and Middle Bronze Ages
Avilova, Liudmila
Trabajos de Prehistoria , 2008,
Abstract: The objective of this work is the reconstruction and comparative analysis of regional models of metal production in the Chalcolithic, Early and Middle Bronze Ages. The work is based on the statistical analysis of unique computer database on archaeological metal finds from four regions of the Near East: Anatolia, Mesopotamia, the Levant, and Iran. The materials are analysed by four indicators: distribution by the chronological periods, artefacts’ function, proportion of used metals and copper- based alloys. The author presents a series of conclusions concerning the preconditions for the beginnings of metal production in Western Asia and the pioneering role of Iran in its emergence, the important role the piedmont territories played in the development of metal production, the leap-like pattern of production dynamics shown by the periods, and its relation to the spread of a producing economy, long-distance exchange, and the emergence of the early civilizations. El objetivo de este trabajo es la reconstrucción y análisis comparativo de modelos regionales de producción metalúrgica del Calcolítico y la Edad del Bronce Inicial y Media. Se basa en el análisis estadístico de una base de datos única sobre hallazgos metálicos de cuatro regiones del Próximo Oriente: Anatolia, Mesopotamia, el Levante e Irán. Los materiales se analizan atendiendo a cuatro variables: períodos cronológicos, función de los artefactos, proporción de los metales usados y las distintas aleaciones del cobre. La autora aporta una serie de conclusiones respecto a las precondiciones para los inicios de la producción metalúrgica en el Oeste Asiático; sobre el papel pionero de Irán en su aparición; la importancia de los piedemontes en su desarrollo; el patrón no continuo que se observa en las dinámicas de producción por periodos; y su relación con la expansión de la economía de producción, el intercambio a larga distancia y la aparición de las primeras civilizaciones.
Assessing and Increasing the Competitiveness of Republic of Moldova Wine Sector
Liudmila ANTOHI
Annals of Dun?rea de Jos University. Fascicle I : Economics and Applied Informatics , 2011,
Abstract: Competitiveness is the capacity of countries to create an enabling environment for indigenous business development; using low-cost strategies, differentiation, substitution, leading to increased productivity; creating opportunities to penetrate foreign markets and added value through their form; citizens by providing jobs with high pay, increasing the purchasing power; contributing to economic growth and to establish a balanced social environment. Enhancing competitiveness of national economy is one of five strategic priorities of the Republic of Moldova, stated in the draft National Development Plan. The wine industry is one of the most important branches of national economy in Moldova. But for Moldova's wine production to be competitive on the world market, wine industry itself should become a branch of modern, efficient, with high economic efficiency, which will not be achieved without investment and without attracting high quality production.
It ain't over when it's over: The adoption and sustainability of minority protection rules in new EU member states
Liudmila Mikalayeva
European Integration Online Papers , 2009,
Abstract: This paper conducts a multi-value Qualitative Comparative Analysis (QCA) of the formal adoption and sustainability of minority protection rules in four new EU member states (Poland, Romania, Estonia, Latvia) over a twelve-year period including pre- and post-accession phases (1997-2008) and five minority protection related issue areas (non-discrimination, language use, education, citizenship, integration of Roma) based on four conditions (external incentives, government position, veto players, size of minorities), in order to investigate under which external and domestic conditions minority protection and non-discrimination measures are adopted, maintained or revoked in new member states before and after accession to the EU.
Toward a New Gold Standard for Early Safety: Automated Temperature-Controlled hERG Test on the PatchLiner?
Liudmila Polonchuk
Frontiers in Pharmacology , 2012, DOI: 10.3389/fphar.2012.00003
Abstract: The Patchliner? temperature-controlled automated patch clamp system was evaluated for testing drug effects on potassium currents through human ether-à-go-go related gene (hERG) channels expressed in Chinese hamster ovary cells at 35–37°C. IC50 values for a set of reference drugs were compared with those obtained using the conventional voltage clamp technique. The results showed good correlation between the data obtained using automated and conventional electrophysiology. Based on these results, the Patchliner? represents an innovative automated electrophysiology platform for conducting the hERG assay that substantially increases throughput and has the advantage of operating at physiological temperature. It allows fast, accurate, and direct assessment of channel function to identify potential proarrhythmic side effects and sets a new standard in ion channel research for drug safety testing.
Dynamics in Nonlocal Cosmological Models Derived from String Field Theory
Liudmila Joukovskaya
Physics , 2007, DOI: 10.1103/PhysRevD.76.105007
Abstract: A general class of nonlocal cosmological models is considered. A new method for solving nonlocal Friedmann equations is proposed, and solutions of the Friedmann equations with nonlocal operator are presented. The cosmological properties of these solutions are discussed. Especially indicated is $p$-adic cosmological model in which we have obtained nonsingular bouncing solution and string field theory tachyon model in which we have obtained full solution of nonlocal Friedmann equations with $w=-1$ at large times. The possibility of obtaining realistic value of cosmological constant from nonlocal cosmological models is also discussed.
Construction Of Difference Schemes For Nonlinear Singular Perturbed Equations By Approximation Of Coefficients
Liudmila Rozanova
Mathematics , 2010,
Abstract: Mathematical modeling of many physical processes such as diffusion, viscosity of fluids and combustion involves differential equations with small coefficients of higher derivatives. These may be small diffusion coefficients for modeling the spreading of impurities, small coefficients of viscosity in fluid flow simulation etc. The difficulty with solving such problem is that if you set the small parameter at higher derivatives to zero, the solution of the degenerate problem doesn't correctly approximate the original problem, even if the small parameter approaches zero; the solution of the original problem exhibits the emergency of a boundary layer. As a result, the application of classical difference schemes for solving such equations produces great inaccuracies. Therefore, numerical solution of differential equations with small coefficients at higher derivatives demands special difference schemes exhibiting uniform convergence with respect to the small parameters involved. In this article author investigates two nonlinear boundary value problems on a finite interval, resulting in exponential and power-law boundary layers.
Aging Effect on Neurotrophic Activity of Human Mesenchymal Stem Cells
Maria Brohlin, Paul J. Kingham, Liudmila N. Novikova, Lev N. Novikov, Mikael Wiberg
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0045052
Abstract: Clinical efficacy of stem cells for nerve repair is likely to be influenced by issues including donor age and in vitro expansion time. We isolated human mesenchymal stem cells (MSC) from bone marrow of young (16–18 years) and old (67–75 years) donors and analyzed their capacity to differentiate and promote neurite outgrowth from dorsal root ganglia (DRG) neurons. Treatment of MSC with growth factors (forskolin, basic fibroblast growth factor, platelet derived growth factor-AA and glial growth factor-2) induced protein expression of the glial cell marker S100 in cultures from young but not old donors. MSC expressed various neurotrophic factor mRNA transcripts. Growth factor treatment enhanced the levels of BDNF and VEGF transcripts with corresponding increases in protein release in both donor cell groups. MSC in co-culture with DRG neurons significantly enhanced total neurite length which, in the case of young but not old donors, was further potentiated by treatment of the MSC with the growth factors. Stem cells from young donors maintained their proliferation rate over a time course of 9 weeks whereas those from the old donors showed increased population doubling times. MSC from young donors, differentiated with growth factors after long-term culture, maintained their ability to enhance neurite outgrowth of DRG. Therefore, MSC isolated from young donors are likely to be a favourable cell source for nerve repair.

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