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Stimulation of Striking Roots at the Cuttings of Laurel Tree (Laurus nobilis) with the Aid of Bioactive Substances of the Radistim Type
Mariana VLAD,I. VLAD
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 2008,
Abstract: The laurel tree was first appraised as a decorative plant because of its persistent, glossy and agreeably nuanced leaves , as well as by its small yellow flowers grouped in panicles of an attractive aspect. This paper followed the effect of radistim on striking roots at the cuttings of Laurus nobilis, observing a considerably increase of the rate of striking roots as well as an enhancement of the quality of the rooting process proved through the number of roots per cutting. The stimulation of the laurel tree cuttings root striking with the aid of the bio-stimulators of the radistim 2 type ensures a superior vegetation potential for the newly formed plants. The work method elaborated at the glass houses complex of Oradea, may contribute to the extension of the laurel tree as a culture in Romania.
siRNA ET microRNA : BIOGENESE, MECANISME ET FONCTIONS
Mariana Varna,Vlad Artenie
Analele ?tiin?ifice Ale Universit??ii Alexandru Ioan Cuza din Ia?i,Sectiunea II A : Genetica si Biologie Moleculara , 2007,
Abstract: L’ARN interférence est un mécanisme hautement conservé entre espèces et permet d’éteindre l’expression d’un gène de manière séquence spécifique en utilisant un ARN double brin. Le r le naturel du silencing par ARN semble être la régulation fine des gènes mais aussi dans la défense contre les éléments transposables et les virus. La découverte du mécanisme d’interférence par l’ARN représente un saut majeur dans la recherche des gènes cibles dans différentes maladies. Deux classes des petites molécules d’ARN ont été trouvées comme étant des régulateurs séquence spécifique posttranscriptionnelle : les siRNA et les microRNA (miRNA). Les siRNA sont produits à partir d’un double brin d’ARN qui est synthétisé in vitro ou in vivo à partir des virus ou des séquences répétitives introduites par ingénierie génétique. Plusieurs miRNA endogènes sont programmés pour la régulation de l’expression des gènes et ainsi participent à la croissance et le développement de l’organisme. Les miRNA sont des importantes molécules régulatrices dans les plantes et les animaux
THE CONSEQUENCES OF THE CAPITAL REGULATION IN CREDIT INSTITUTIONS ACCORDING TO THE BASEL I AGREEMENTS
Mariana VLAD,Mihaela TULVINSCHI
Annals of the Stefan cel Mare University of Suceava : Fascicle of the Faculty of Economics and Public Administration , 2009,
Abstract: Capital is one of the key factors to be considered when the safety and soundness activity of bank is evaluation.An adequate capital based serves as a safety network for a variety of ricks to which a bank is expose d in the course ofits business. He absorbs the possible losses and provided a basis for maintaining depositor confidence in bank. Also,the capital is the ultimate determinant of a bank’s lending capacity. A bank’s balance sheet cannot be expanded beyondthe level determined by its capital adequacy ratio. Therefore, the availability of capital consequently determines themaximum level of assets.
Methods of Payment to Banks: e-Banking. Comparative Study on Three Banks
Miranda Petronella VLAD,Mariana Rodica TIRLEA
Risk in Contemporary Economy , 2012,
Abstract: E-banking website, majority offers the banks. At first it was electronic-banking, Internet-banking followed, followed by mobile-banking service. These services offer the same facilities, Customer Bank just that varies the channel used for communication with the Bank. The services offered by banks through E-banking, approves: compilation of orders; scheduled payments; orders for payment of wages; internal transfers; pay rates on internal or external; currency exchanges; view balances of accounts at any time; information about foreign exchange rates; view and print account statements; the definition of beneficiaries of direct payments by the client.
Card - Electronic Money. Comparative Study
Mariana Rodica TIRLEA,Miranda Petronella VLAD
Risk in Contemporary Economy , 2012,
Abstract: This type of coin and appeared as a result of the needs for a proper management of the financial resources available in the market, but also to improve the payments system in our country. The card is an alternative to the conventional instruments of payment is a payment instrument with and without cash by means of which the holder disposes of the current account. It is a standardized, secure information and individualized, through which you can perform operations of cash withdrawal, payment for the goods or services purchased, payment obligations by the public administration authorities and funds transfers between accounts, other than those ordered and executed by financial institutions, carried out through the electronic payment instrument.
THE VARIATION OF PLASMATIC CONCENTRATION OF HAEMOGLOBIN AND THE EVALUATION OF HEAT SHOCK PROTEINS IN RHEUMATIC PATIENTS
Claudia Vlad,Mariana Carmen Chifiriuc,Coralia Bleotu,Veronica Lazar
Letters in Applied NanoBioScience , 2012,
Abstract: Rheumatoid arthritis is a systemic inflammatory disease with still unknown aetiology. The purpose of our study was to comparatively investigate the level of haemoglobin, as well as of the heat shock proteins HSP60 and HSP70 as well as their specific antibodies serum levels in rheumatic patients, in order to evaluate their potential role as an aid in the diagnosis of this chronic pathology. This study was performed on patients with rheumatoid polyarthritis. The haemoglobin plasmatic concentration was assessed by a quantitative determination using the automatic analyzer Beckman Coulter Act5diff, while the thermal shock proteins HSP 60, HSP 70 as well as their respective serum antibodies were determined by Western blot method and ELISA assay, respectively. All the patients involved in this study exhibited low values of haemoglobin, known to be an important marker of haematological disorders. These results maintain the idea that anaemia, heart disease, osteoporosis are the most frequent complication for rheumatoid arthritis. The concept of overexpression of endogenous HSPs is central to hypotheses in which HSPs are implicated in the pathogenesis of autoimmune rheumatic disease. The quantification of HSPs levels in the serum of the rheumatic patients showed that both Hsp60 and Hsp70 levels are higher, especially in those patients who had as a secondary disease, like cardiac insufficiency and obesity. The HSP60 and HSP70 antibodies were also highly expressed in our patients. These lesions could be partially due to the fact that despite the ubiquitous and high homology of heat shock proteins among different species, they also represent important antigenic targets of the cellular and humoral immune response. Besides the low level of haemoglobin, the presence of a high level of heat shock proteins and of their corresponding antibodies may be considered as useful markers which could be correlated with the evolution and the severity of a long chain of pathological processes, including the rheumatic diseases.
ELECTROMAGNETIC FIELD INFLUENCE ON SOME ANTIOXIDANT ENZYMES FROM RAT BLOOD SERUM
Vlad Artenie,Calin Maniu,Romeo Artenie,Mariana Caunic
Analele ?tiin?ifice Ale Universit??ii Alexandru Ioan Cuza din Ia?i,Sectiunea II A : Genetica si Biologie Moleculara , 2007,
Abstract: Wistar rats were treated 6, 13 and 20 days with two type electromagnetic field (EMF): 50Hz and 100Hz, 30 minute daily. It was determined superoxide dismutase and glutathione peroxidase activities in rat blood serum treated with EMF. Confronted by control lot, in both 50Hz and 100Hz EMF treated animals the superoxide dismutase activity is increasing after 6 and 13 day of treatment. At 20 days it was recorded a superoxide dismutase activity inhibition, greater than the 100Hz EMF treatment. The blood serum glutathione peroxidase activity was stimulated by 50Hz EMF after 6 days and also by 50Hz and 100Hz EMF after 13 day of treatment. The 20 days treatment (long duration) was determined an insignificant inhibition of glutathione peroxidase.
LE TRANSPORT MEMBRANAIRE ACTIF DE L’ACIDE PHéNYLACéTIQUE CHEZ PENICILLIUM CHRISOGENUM ET SON INFLUENCE SUR LA VITESSE SPéCIFIQUE DE BIOSYNTHèSE DE LA PéNICILLINE
Mariana Zaharia,Anca-Maria Huma,Lucian Negura,Vlad Artenie
Analele ?tiin?ifice Ale Universit??ii Alexandru Ioan Cuza din Ia?i,Sectiunea II A : Genetica si Biologie Moleculara , 2005,
Abstract: : Le but du présent travail consiste en la mise en évidence d’une corrélation existante entre la cinétique du transport membranaire actif de l’acide phénylacétique et la vitesse de biosynthèse de la benzylpénicilline, ainsi qu’en l’espacement temporel du moment optimal d’activation du système de transport de l’acide phénylacétique. Les informations présentées peuvent être particulièrement utiles dans les programmes d’optimisation des processus industriels. Elles permettent d’éviter le gaspillage d’acide phénylacétique, par son administration dans le milieu de fermentation au moment où le système membranaire de transport actif est prêt.
CARACTéRISATION BIOCHIMIQUE DE CERTAINS HYBRIDES DE MA S UTILISéS COMME SUBSTRAT DANS L’OBTENTION DES SPORES DE PENICILLIUM CHRISOGENUM : MISE EN éVIDENCE DE LA COMPOSITION BIOCHIMIQUE OPTIMALE PRO PENICILLIUM
Mariana Zaharia,Anca-Maria Huma,Lucian Negura,Vlad Artenie
Analele ?tiin?ifice Ale Universit??ii Alexandru Ioan Cuza din Ia?i,Sectiunea II A : Genetica si Biologie Moleculara , 2005,
Abstract: La présente étude a pour but l’identification des différents caractères biochimiques de quelques 23 hybrides de ma s cultivés dans notre pays, ainsi que l’analyse de leur influence sur le comportement du mycélium de Penicillium chrysogenum développé en culture submergée à partir de spores poussées sur des caryopses de ma s. Les données accumulées nous ont permis l’établissement d’un tableau biochimique contenant des intervalles de valeurs définissant un substrat optimal pour l’obtention de spores donnant des mycéliums productifs de Penicillium.
L’INFLUENCE DES PARTICULARITéS BIOCHIMIQUES DE CERTAINS HYBRIDES DE MA S UTILISéS COMME SUBSTRAT SUR LA QUALITé DES SPORES DE PENICILLIUM CHRISOGENUM
Mariana Zaharia,Anca-Maria Huma,Lucian Negura,Vlad Artenie
Analele ?tiin?ifice Ale Universit??ii Alexandru Ioan Cuza din Ia?i,Sectiunea II A : Genetica si Biologie Moleculara , 2005,
Abstract: Dans ce travail, nous avons essayé de mettre en évidence la modalité dont le substrat sur lequel sont obtenues les spores utilisées comme inocule peut influencer le taux de biosynthèse du mycélium issu de ces spores en culture submergée (en flacons agités). Nous avons également cherché à déceler la variante optimale de substrat et la mise en évidence des éventuels aspects biochimiques qui pourraient influencer négativement la qualité des spores. Pour des raisons pratiques, on a opté pour des variantes de substrat naturel appartenant à une même espèce végétale (caryopses de 23 hybrides de ma s autochtones).
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