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Articles (51)
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Study of the pozzolanic activity and hydration products of cement pastes with addition of natural zeolites

Lilkov, V., Petrov, O., Petkova, V., Petrova, N., Tzvetanova, Y.

Journal:

Clay Minerals

Année:

2011

Langue:

english

Fichier:

PDF, 1.20 MB

english, 2011

Mössbauer, DTA and XRD study of Portland cement blended with fly ash and silica fume

Vili Lilkov, Ognyan Petrov, Yana Tzvetanova, Plamen Savov

Journal:

Construction and Building Materials

Année:

2012

Langue:

english

Fichier:

PDF, 1.12 MB

english, 2012

Abnormal protein patterns in blood serum and cerebrospinal fluid detected by capillary electrophoresis

Mariella Ivanova, Elena Tzvetanova, Veska Jetcheva, Ferenc Kilár

Journal:

Journal of Biochemical and Biophysical Methods

Année:

2002

Langue:

english

Fichier:

PDF, 252 KB

english, 2002

Reflections on discrimination and oppression in contemporary social work practice in Bulgaria

Tcholakova, Maya, Sotirova, Viktoria, Tzvetanova, Yoanna

Journal:

European Journal of Social Work

Année:

2017

Langue:

english

Fichier:

PDF, 2.46 MB

english, 2017

Comparative Study of Phytochemical Profiles and Antioxidant Properties of Hydrosols from Bulgarian Rosa Alba L. and Rosa Damascena Mill.

Georgieva, Almira, Dobreva, Ana, Tzvetanova, Elina, Alexandrova, Albena, Mileva, Milka

Journal:

Journal of Essential Oil Bearing Plants

Année:

2019

Langue:

english

Fichier:

PDF, 570 KB

english, 2019

Long term study of hardened cement pastes containing silica fume and fly ash

Lilkov, Vili, Rostovsky, Ivan, Petrov, Ognyan, Tzvetanova, Yana, Savov, Plamen

Journal:

Construction and Building Materials

Année:

2014

Langue:

english

Fichier:

PDF, 1.69 MB

english, 2014

The role of myelin and oligodendrocytes in axonal energy metabolism

Saab, Aiman S, Tzvetanova, Iva D, Nave, Klaus-Armin

Journal:

Current Opinion in Neurobiology

Année:

2013

Langue:

english

Fichier:

PDF, 1.42 MB

english, 2013

Comparative Study of Phytochemical Profiles and Antioxidant Properties of Hydrosols from Bulgarian Rosa Alba L. and Rosa Damascena Mill.

Georgieva, Almira, Dobreva, Ana, Tzvetanova, Elina, Alexandrova, Albena, Mileva, Milka

Journal:

Journal of Essential Oil Bearing Plants

Année:

2019

Fichier:

PDF, 570 KB

2019

Ion exchange of Cs+ and Sr2+ by natural clinoptilolite from bi-cationic solutions and XRD control of their structural positioning

Lihareva, N., Petrov, O., Dimowa, L., Tzvetanova, Y., Piroeva, I., Ublekov, F., Nikolov, A.

Journal:

Journal of Radioanalytical and Nuclear Chemistry

Année:

2020

Langue:

english

Fichier:

PDF, 1.02 MB

english, 2020

Are nociceptin(1-13)NH2 and its structural analogue [ORN9]nociceptin(1-13)NH2 able to affect brain antioxidant status in control and kainic acid-treated rats?

Elina Tzvetanova, Almira Pavlova, Albena Alexandrova, Galina Nenkova, Lubomir Petrov, Margarita Kirkova, Radoslav Girchev, Emilia Naydenova

Journal:

Cell Biochemistry and Function

Année:

2009

Langue:

english

Fichier:

PDF, 384 KB

english, 2009

Antioxidant activity of fluoxetine: Studies in mice melanoma model

Margarita Kirkova, Elina Tzvetanova, Stefani Vircheva, Rositsa Zamfirova, Beata Grygier, Marta Kubera

Journal:

Cell Biochemistry and Function

Année:

2010

Langue:

english

Fichier:

PDF, 334 KB

english, 2010

Effects of structural analogues of nociceptin(1–13)NH2 on brain antioxidant status in kainic acid-treated rats

Elina Tzvetanova, Galina Nenkova, Almira Georgieva, Albena Alexandrova, Radoslav Girchev, Margarita Kirkova

Journal:

Cell Biochemistry and Function

Année:

2011

Langue:

english

Fichier:

PDF, 1.57 MB

english, 2011

Effects of desipramine on the antioxidant status in rat tissues at carrageenan-induced paw inflammation

Stefani Vircheva, Galina Nenkova, Almira Georgieva, Albena Alexandrova, Elina Tzvetanova, Polina Mateeva, Rositsa Zamfirova, Margarita Kirkova

Journal:

Cell Biochemistry and Function

Année:

2012

Langue:

english

Fichier:

PDF, 265 KB

english, 2012

Glia unglued: How signals from the extracellular matrix regulate the development of myelinating glia

Holly Colognato, Iva D. Tzvetanova

Journal:

Developmental Neurobiology

Année:

2011

Langue:

english

Fichier:

PDF, 656 KB

english, 2011

Effect of copper intoxication on rat liver proteasome activity: Relationship with oxidative stress

Albena Alexandrova, Lubomir Petrov, Almira Georgieva, Mila Kessiova, Elina Tzvetanova, Margarita Kirkova, Marian Kukan

Journal:

Journal of Biochemical and Molecular Toxicology

Année:

2008

Langue:

english

Fichier:

PDF, 336 KB

english, 2008

Ag+ sorption on natural and Na-exchanged clinoptilolite from Eastern Rhodopes, Bulgaria

N. Lihareva, L. Dimova, O. Petrov, Y. Tzvetanova

Journal:

Microporous and Mesoporous Materials

Année:

2010

Langue:

english

Fichier:

PDF, 229 KB

english, 2010

Micro-structural development in Al–Si microcrystalline alloys

N Stoichev, K Petrov, S Yaneva, P Kovachev, N Tzvetanova

Journal:

Materials Science and Engineering: A

Année:

2002

Langue:

english

Fichier:

PDF, 220 KB

english, 2002

Tyrosine phosphatases Shp1 and Shp2 have unique and opposing roles in oligodendrocyte development

Emory Kuo, Daniel K. Park, Iva D. Tzvetanova, Cindy V. Leiton, Brian S. Cho, Holly Colognato

Journal:

Journal of Neurochemistry

Année:

2010

Langue:

english

Fichier:

PDF, 701 KB

english, 2010

In vivoeffects of N/OFQ(1–13)NH2and its structural analogue [ORN9]N/OFQ(1–13)NH2on carrageenan-induced inflammation: rat-paw oedema and antioxidant status

Rositsa Zamfirova, Elina Tzvetanova, Albena Alexandrova, Lubomir Petrov, Polina Mateeva, Almira Pavlova, Margarita Kirkova, Simeon Todorov

Journal:

Central European Journal of Biology

Année:

2009

Langue:

english

Fichier:

PDF, 2.51 MB

english, 2009

In-vivoeffects of nociceptin and its structural analogue [Orn9] nociceptin on the antioxidant status of rat blood and liver after carrageenan-induced paw inflammation

Lubomir Petrov, Elina Tzvetanova, Almira Pavlova, Albena Alexandrova, Rositsa Zamfirova, Margarita Kirkova, Simeon Todorov

Journal:

Central European Journal of Medicine

Année:

2010

Langue:

english

Fichier:

PDF, 2.77 MB

english, 2010

Glycolytic oligodendrocytes maintain myelin and long-term axonal integrity

Fünfschilling, Ursula, Supplie, Lotti M., Mahad, Don, Boretius, Susann, Saab, Aiman S., Edgar, Julia, Brinkmann, Bastian G., Kassmann, Celia M., Tzvetanova, Iva D., Möbius, Wiebke, Diaz, Francisca, Me

Journal:

Nature

Année:

2012

Langue:

english

Fichier:

PDF, 1.10 MB

english, 2012

Antioxidant activity of fluoxetine: Studies in mice melanoma model

M. Kubera, M. Kirkova, E. Tzvetanova, S. Vircheva, R. Zamfirova, M. Leskiewicz, B. Grygier

Journal:

Brain, Behavior, and Immunity

Année:

2010

Langue:

english

Fichier:

PDF, 37 KB

english, 2010

Effect of MG132 on proteasome activity and prooxidant/antioxidant status of rat liver subjected to ischemia/reperfusion injury

Albena Alexandrova, Lubomir Petrov, Almira Georgieva, Mila Kessiova, Elina Tzvetanova, Margarita Kirkova, Marian Kukan

Journal:

Hepatology Research

Année:

2008

Langue:

english

Fichier:

PDF, 350 KB

english, 2008

Aldolase isoenzymes in serum and muscle from patients with progressive muscular dystrophy and from human foetus

Elena Tzvetanova

Journal:

Journal of the Neurological Sciences

Année:

1971

Langue:

english

Fichier:

PDF, 478 KB

english, 1971

Axons hooked to Schwann cell metabolism

Tzvetanova, Iva D, Nave, Klaus-Armin

Journal:

Nature Neuroscience

Année:

2014

Langue:

english

Fichier:

PDF, 463 KB

english, 2014

STAT3 represents a molecular switch possibly inducing astroglial instead of oligodendroglial differentiation of oligodendroglial progenitor cells in Theiler's murine encephalomyelitis

Sun, Yanyong, Lehmbecker, Annika, Kalkuhl, Arno, Deschl, Ulrich, Sun, Wenhui, Rohn, Karl, Tzvetanova, Iva D., Nave, Klaus-Armin, Baumgärtner, Wolfgang, Ulrich, Reiner

Journal:

Neuropathology and Applied Neurobiology

Année:

2015

Langue:

english

Fichier:

PDF, 2.39 MB

english, 2015

Sorption of Silver Cations by Natural and Na-Exchanged Mordenite

Lihareva, N., Tzvetanova, Y., Petrov, O., Dimova, L.

Journal:

Separation Science and Technology

Année:

2013

Langue:

english

Fichier:

PDF, 405 KB

english, 2013

Laminin Alters Fyn Regulatory Mechanisms and Promotes Oligodendrocyte Development

Relucio, J., Tzvetanova, I. D., Ao, W., Lindquist, S., Colognato, H.

Journal:

Journal of Neuroscience

Année:

2009

Langue:

english

Fichier:

PDF, 19.80 MB

english, 2009

Special issue on interaction and experience design

Wodehouse, Andrew, Yung, Sylvia Tzvetanova

Journal:

Journal of Engineering Design

Année:

2015

Langue:

english

Fichier:

PDF, 158 KB

english, 2015

Evaluation of Matrix Metalloproteinase 7 in Plasma and Pancreatic Juice as a Biomarker for Pancreatic Cancer

Kuhlmann, K. F.D., van Till, J.W. O., Boermeester, M. A., de Reuver, P. R., Tzvetanova, I. D., Offerhaus, G. J. A., ten Kate, F. J.W., Busch, O. R.C., van Gulik, T. M., Gouma, D. J., Crawford, H. C.

Journal:

Cancer Epidemiology Biomarkers & Prevention

Année:

2007

Langue:

english

Fichier:

PDF, 298 KB

english, 2007

Evaluation of the possible use of a Bulgarian clinoptilolite for removing strontium from water media

Lihareva, N., Petrov, O., Tzvetanova, Y., Kadiyski, M., Nikashina, V. A.

Journal:

Clay Minerals

Année:

2015

Langue:

english

Fichier:

PDF, 319 KB

english, 2015

Rheological, porosimetric, and SEM studies of cements with additions of natural zeolites

Lilkov, V., Petrov, O., Tzvetanova, Y.

Journal:

Clay Minerals

Année:

2011

Langue:

english

Fichier:

PDF, 720 KB

english, 2011

Risk Sexual Behaviour In Students Aged 12-18

Tzvetanova, Nevena V., Simeonova, Joana I., Tzvetanova, Yanka I.

Journal:

Journal of Biomedical and Clinical Research

Année:

2014

Fichier:

PDF, 111 KB

2014

Carbonation process in cement with mineral additions of natural zeolite and silica fume – Early hydration period (minutes) up to 24hours

Lilkov, V., Petrov, O., Kovacheva, D., Rostovsky, I., Tzvetanova, Y., Petkova, V., Petrova, N.

Journal:

Construction and Building Materials

Année:

2016

Langue:

english

Fichier:

PDF, 2.41 MB

english, 2016

[IEEE 2017 IEEE Virtual Reality (VR) - Los Angeles, CA, USA (2017.3.18-2017.3.22)] 2017 IEEE Virtual Reality (VR) - Augmenting creative design thinking using networks of concepts

Georgiev, Georgi V., Yamada, Kaori, Taura, Toshiharu, Kostakos, Vassilis, Pouke, Matti, Yung, Sylvia Tzvetanova, Ojala, Timo

Année:

2017

Langue:

english

Fichier:

PDF, 433 KB

english, 2017

New G-quadruplex DNA structures

Shivachev, Boris L., Dimowa, Louiza T., Nikolova, Rosica P., Sbirkova, Hristina I., Tzvetanova, Lilia, Hristoff, Peter, Radoslavov, Georgi, Tzanko, Doukov I.

Journal:

Acta Crystallographica Section A Foundations and Advances

Année:

2015

Fichier:

PDF, 52 KB

2015

Glial Cell Evolution: The Origins of a Lipid Store

Nave, Klaus-Armin, Tzvetanova, Iva D., Schirmeier, Stefanie

Journal:

Cell Metabolism

Année:

2017

Langue:

english

Fichier:

PDF, 428 KB

english, 2017

Family Factors and Risk Sexual Behaviour in Students Aged 12-18

Simeonova, Joana I., Tzvetanova, Nevena V., Tzvetanova, Yanka I.

Journal:

Journal of Biomedical and Clinical Research

Année:

2014

Langue:

english

Fichier:

PDF, 215 KB

english, 2014

Evaluation of Bulgarian clinoptilolite as ion-exchanger for Cs+ removal from water solutions

Lihareva, N., Dimowa, L., Petrov, O., Tzvetanova, Y.

Journal:

Journal of Radioanalytical and Nuclear Chemistry

Année:

2018

Langue:

english

Fichier:

PDF, 631 KB

english, 2018

Mössbauer, XRD, and Complex Thermal Analysis of the Hydration of Cement with Fly Ash

Lilkov, Vili, Petrov, Ognyan, Tzvetanova, Yana, Savov, Plamen, Kadiyski, Milen

Journal:

Journal of Spectroscopy

Année:

2013

Langue:

english

Fichier:

PDF, 4.06 MB

english, 2013

Multiplex PCR detection of problematic pathogens of clinically heterogeneous bacterial vaginosis in Bulgarian women

TOSHEVA-DASKALOVA, Konstantsa, STRATEVA, Tanya Vasileva, MITOV, Ivan Gergov, GERGOVA, Raina Tzvetanova

Journal:

TURKISH JOURNAL OF MEDICAL SCIENCES

Année:

2017

Langue:

english

Fichier:

PDF, 467 KB

english, 2017

Neuroprotective Mechanisms of Three Natural Antioxidants on a Rat Model of Parkinson’s Disease: A Comparative Study

Tancheva, Lyubka P., Lazarova, Maria I., Alexandrova, Albena V., Dragomanova, Stela T., Nicoletti, Ferdinando, Tzvetanova, Elina R., Hodzhev, Yordan K., Kalfin, Reni E., Miteva, Simona A., Mazzon, Ema

Journal:

Antioxidants

Année:

2020

Fichier:

PDF, 2.90 MB

2020

Changes in Enzyme Activity in Human Trichinosis

Tzvetanova, E.

Journal:

Enzyme

Année:

1975

Langue:

english

Fichier:

PDF, 270 KB

english, 1975

Serum Creatine Kinase Isoenzymes in Progressive Muscular Dystrophy

Tzvetanova, Elena

Journal:

Enzyme

Année:

1978

Fichier:

PDF, 453 KB

1978

Creatine Kinase Isoenzymes in Muscle Tissue of Patients with Neuromuscular Diseases and Human Fetuses

Tzvetanova, Elena

Journal:

Enzyme

Année:

1971

Fichier:

PDF, 555 KB

1971

[IEEE 2019 IEEE XXVIII International Scientific Conference Electronics (ET) - Sozopol, Bulgaria (2019.9.12-2019.9.14)] 2019 IEEE XXVIII International Scientific Conference Electronics (ET) - Sonification â an Alternative Presentation of the Electrocardiogram: A Systematic Literature Review

Kanev, Ivan Krasimirov, Iliev, Ivo Tsvetanov, Krasteva, Vessela Tzvetanova

Année:

2019

Fichier:

PDF, 305 KB

2019

A role of oligodendrocytes in information processing

Moore, Sharlen, Meschkat, Martin, Ruhwedel, Torben, Trevisiol, Andrea, Tzvetanova, Iva D., Battefeld, Arne, Kusch, Kathrin, Kole, Maarten H. P., Strenzke, Nicola, MÃ¶bius, Wiebke, de Hoz, Livia, Nave,

Journal:

Nature Communications

Année:

2020

Fichier:

PDF, 2.13 MB

2020

Aldolase Isoenzymes in Patients with Progressive Muscle Dystrophy and in Human Fetuses

Tzvetanova, Elena

Journal:

Clinical Chemistry

Année:

1971

Fichier:

PDF, 1015 KB

1971

Improved biuret method for determination of fibrinogen.

Tzvetanova, E M, Gotzev, R K

Journal:

Clinical Chemistry

Année:

1988

Fichier:

PDF, 492 KB

1988

Powder XRD Structural Study of Ba2+ Modified Clinoptilolite at Different Stages of the Ion Exchange Process Conducted at Two Temperature RegimesâRoom Temperature and 90 Â°C

Dimowa, Louiza, Tzvetanova, Yana, Petrov, Ognyan, Piroeva, Iskra, Ublekov, Filip

Journal:

Minerals

Année:

2020

Fichier:

PDF, 5.28 MB

2020