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1

Spectral interferences in the determination of rhenium in molybdenum and copper concentrates by inductively coupled plasma optical emission spectrometry (ICP-OES)

Karadjov, Metody, Velitchkova, Nikolaya, Veleva, Olga, Velichkov, Serafim, Markov, Pavel, Daskalova, Nonka

Journal:

Spectrochimica Acta Part B: Atomic Spectroscopy

Year:

2016

Language:

english

File:

PDF, 260 KB

english, 2016

2

Rationalization of belonging: Transnational community endurance

Velitchkova, Ana

Journal:

International Sociology

Year:

2020

File:

PDF, 206 KB

2020

3

High light-induced changes of 77 K fluorescence emission of pea thylakoid membranes with altered membrane fluidity

Maya Velitchkova, Antoaneta Popova

Journal:

Bioelectrochemistry

Year:

2005

Language:

english

File:

PDF, 188 KB

english, 2005

4

Photosynthetic Responses of a Wheat Mutant (Rht-B1c) with Altered DELLA Proteins to Salt Stress

Jusovic, Maida, Velitchkova, Maya Y., Misheva, Svetlana P., Börner, Andreas, Apostolova, Emilia L., Dobrikova, Anelia G.

Journal:

Journal of Plant Growth Regulation

Year:

2017

Language:

english

File:

PDF, 1.32 MB

english, 2017

5

Photoluminescence of carbon-implanted ultra-high molecular weight polyethylene composite and its modification by gamma irradiation

S Balabanov, K Velitchkova, K Krezhov

Journal:

Year:

2002

Language:

english

File:

PDF, 158 KB

english, 2002

6

Resonance Raman Studies of Carotenoid Molecules Within Photosystem I Particles

Andreeva, A., Velitchkova, M.

Journal:

Biotechnology & Biotechnological Equipment

Year:

2009

Language:

english

File:

PDF, 762 KB

english, 2009

7

Transport properties of selenium implanted polymer composites

K Krezhov, K Velitchkova, S Balabanov

Journal:

Year:

2002

Language:

english

File:

PDF, 141 KB

english, 2002

8

Carbon-implanted ultra-high molecular-weight polyethylene studied by a pulsed slow-positron beam

N. Djourelov, C. He, T. Suzuki, Y. Ito, K. Velitchkova, E. Hamada, K. Kondo

Journal:

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

Year:

2004

Language:

english

File:

PDF, 319 KB

english, 2004

9

Heat stress-induced effects of photosystem I: an overview of structural and functional responses

Ivanov, Alexander G., Velitchkova, Maya Y., Allakhverdiev, Suleyman I., Huner, Norman P. A.

Journal:

Photosynthesis Research

Year:

2017

Language:

english

File:

PDF, 2.05 MB

english, 2017

10

Photobleaching of photosynthetic pigments in spinach thylakoid membranes. Effect of temperature, oxygen and DCMU

M.Y. Velitchkova, R. Picorel

Journal:

Biophysical Chemistry

Year:

2004

Language:

english

File:

PDF, 155 KB

english, 2004

11

Low temperature and high light dependent dynamic photoprotective strategies in Arabidopsis thaliana

Velitchkova, Maya, Popova, Antoaneta V., Faik, Aygyun, Gerganova, Milena, Ivanov, Alexander G.

Journal:

Physiologia Plantarum

Year:

2020

File:

PDF, 1.57 MB

2020

12

Windows on the Ninth World Social Forum in Belém

Choi-Fitzpatrick, Austin, Smith, Jackie, Velitchkova, Ana

Journal:

Societies Without Borders

Year:

2009

Language:

english

File:

PDF, 133 KB

english, 2009

13

Trypsin-induced changes in energy distribution between photosystem I and photosystem II in pea thylakoid membranes

M.Y. Velitchkova, T.R. Lazarova, Y. Zanev

Journal:

Bioelectrochemistry and Bioenergetics

Year:

1995

Language:

english

File:

PDF, 376 KB

english, 1995

14

Heat-induced changes in the efficiency of P700 photo-oxidation in pea chloroplast membranes

Alexander G. Ivanov, Maya Y. Velitchkova

Journal:

Journal of Photochemistry and Photobiology B: Biology

Year:

1990

Language:

english

File:

PDF, 1013 KB

english, 1990

15

DC surface transport properties of selenium-implanted polymethylmetacrylate

K. Velitchkova, K. Krezhov, S. Balabanov

Journal:

Year:

2004

Language:

english

File:

PDF, 197 KB

english, 2004

16

World Culture, Uncoupling, Institutional Logics, and Recoupling: Practices and Self-Identification as Institutional Microfoundations of Political Violence

Velitchkova, Ana

Journal:

Sociological Forum

Year:

2015

Language:

english

File:

PDF, 233 KB

english, 2015

17

ChemInform Abstract: ADSORPTION VON MONOMEREN MIT KONJUGIERTEN DOPPELBINDUNGEN AN GRAPHIT 1. MITT. ADSORPTION VON STYROL, STYROLOXID, PHENYLACETYLEN, VINYLPYRIDIN UND VINYLNAPHTHALIN

PANAYOTOV, IVAN M., RASHKOV, ILIA B., VELITCHKOVA, ROUMIANA S.

Journal:

Chemischer Informationsdienst

Year:

1974

File:

PDF, 98 KB

1974

18

Effects of cholesterol and benzyl alcohol on fluorescence transients of pea thylakoids

M. Busheva, M. Velitchkova, Tz. Markova, Y. Zanev

Journal:

Journal of Photochemistry and Photobiology B: Biology

Year:

1998

Language:

english

File:

PDF, 490 KB

english, 1998

19

NaCl induced cross-acclimation to UV-B radiation in four Barley (Hordeum vulgareL.) cultivars

Hüsnü Çakırlar, Nuran Çiçek, Ivanka Fedina, Katya Georgieva, Ali Doğru, Maya Velitchkova

Journal:

Acta Physiologiae Plantarum

Year:

2008

Language:

english

File:

PDF, 400 KB

english, 2008

20

Response of isolated thylakoid membranes with altered fluidity to short term heat stress

Maya Velitchkova, Dessislava Lazarova, Antoaneta Popova

Journal:

Physiology and Molecular Biology of Plants

Year:

2009

Language:

english

File:

PDF, 452 KB

english, 2009

21

Effects of long-term action of high temperature and high light on the activity and energy interaction of both photosystems in tomato plants

Faik, A., Popova, A. V., Velitchkova, M.

Journal:

Photosynthetica

Year:

2016

Language:

english

File:

PDF, 421 KB

english, 2016

22

UV-B induced alteration of oxygen evolving reactions in pea thylakoid membranes as affected by scavengers of reactive oxygen species

Lazarova, D., Stanoeva, D., Popova, A., Vasilev, D., Velitchkova, M.

Journal:

Biologia Plantarum

Year:

2014

Language:

english

File:

PDF, 292 KB

english, 2014

23

Mechanisms of photosystem I activity stimulation in trypsin-treated pea chloroplast membranes

Maya Y. Velitchkova, Alexander G. Ivanov

Journal:

Journal of Electroanalytical Chemistry

Year:

1992

Language:

english

File:

PDF, 509 KB

english, 1992

24

Inductively coupled plasma atomic emission spectrometry — Optimization of the operating conditions in the determination of trace of elements in line-rich emission matrices

N. Velitchkova, S. Velichkov, N. Daskalova

Journal:

Spectrochimica Acta Part B: Atomic Spectroscopy

Year:

2007

Language:

english

File:

PDF, 804 KB

english, 2007

25

Determination of arsenic, mercury, selenium, thallium, tin and bismuth in environmental materials by inductively coupled plasma emission spectrometry

N Velitchkova, E.N Pentcheva, N Daskalova

Journal:

Spectrochimica Acta Part B: Atomic Spectroscopy

Year:

2004

Language:

english

File:

PDF, 414 KB

english, 2004

26

Different kinetics of photoinactivation of photosystem I-mediated electron transport and P700 in isolated thylakoid membranes

Maya Velitchkova, Inmaculada Yruela, Miguel Alfonso, Pablo J. Alonso, Rafael Picorel

Journal:

Journal of Photochemistry and Photobiology B: Biology

Year:

2003

Language:

english

File:

PDF, 489 KB

english, 2003

27

UV-B induced stress responses in three rice cultivars

I. Fedina, J. Hidema, M. Velitchkova, K. Georgieva, D. Nedeva

Journal:

Biologia Plantarum

Year:

2010

Language:

english

File:

PDF, 356 KB

english, 2010

28

Polarized fluorescence spectroscopy of oriented isolated spinach Photosystem I particles

Atanaska Andreeva, Maya Velitchkova

Journal:

Photosynthesis Research

Year:

2000

Language:

english

File:

PDF, 316 KB

english, 2000

29

Retention of Cs in Boom Clay: Comparison of data from batch sorption tests and diffusion experiments on intact clay cores

N. Maes, S. Salah, D. Jacques, M. Aertsens, M. Van Gompel, P. De Cannière, N. Velitchkova

Journal:

Physics and Chemistry of the Earth, Parts A/B/C

Year:

2008

Language:

english

File:

PDF, 269 KB

english, 2008

30

Temperature dependence of resonance Raman spectra of carotenoids

A. Andreeva, I. Apostolova, M. Velitchkova

Journal:

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Year:

2011

Language:

english

File:

PDF, 577 KB

english, 2011

31

Effect of pretreatment of barley seedlings with different salts on the level of UV-B induced and UV-B absorbing compounds

Ivanka Fedina, Katya Georgieva, Maya Velitchkova, Irena Grigorova

Journal:

Environmental and Experimental Botany

Year:

2006

Language:

english

File:

PDF, 486 KB

english, 2006

32

SPIE Proceedings [SPIE OPTIKA '98: Fifth Congress on Modern Optics - Budapest, Hungary (Monday 14 September 1998)] OPTIKA '98: 5th Congress on Modern Optics - Orientation of optical transitions of pigments in isolated photosystem I particles

Andreeva, Atanaska, Velitchkova, Maya, Akos, Gyorgy, Lupkovics, Gabor, Podmaniczky, Andras

Year:

1998

Language:

english

File:

PDF, 254 KB

english, 1998

33

Effect of Membrane Fluidity on Photosynthetic Oxygen Production Reactions

Popova, Antoaneta V., Velitchkova, Maya, Zanev, Yuli

Journal:

Zeitschrift für Naturforschung C

Year:

2007

Language:

english

File:

PDF, 284 KB

english, 2007

34

UV-B response of greening barley seedlings

Fedina, Ivanka, Velitchkova, Maya, Georgieva, Katya, Nedeva, Dimitrina, Çakırlar, H.

Journal:

Acta Biologica Hungarica

Year:

2009

Language:

english

File:

PDF, 2.18 MB

english, 2009

35

Mechanisms of photosystem I activity stimulation in trypsin-treated pea chloroplast membranes

Maya Y. Velitchkova, Alexander G. Ivanov

Journal:

Bioelectrochemistry and Bioenergetics

Year:

1992

Language:

english

File:

PDF, 454 KB

english, 1992

36

UV-B response of green and etiolated barley seedlings

I. Fedina, M. Velitchkova, K. Georgieva, K. Demirevska, L. Simova

Journal:

Biologia Plantarum

Year:

2007

Language:

english

File:

PDF, 380 KB

english, 2007

37

The Lack of Lutein Accelerates the Extent of Light-induced Bleaching of Photosynthetic Pigments in Thylakoid Membranes of Arabidopsis thaliana

Dobrev, Konstantin, Stanoeva, Daniela, Velitchkova, Maya, Popova, Antoaneta V.

Journal:

Photochemistry and Photobiology

Year:

2016

Language:

english

File:

PDF, 483 KB

english, 2016

38

Freezing tolerance of photosynthetic apparatus in the homoiochlorophyllous resurrection plant Haberlea rhodopensis

Mihailova, Gergana, Solti, ÃdÃ¡m, SÃ¡rvÃ¡ri, Ãva, Keresztes, Ãron, Rapparini, Francesca, Velitchkova, Maya, Simova, Ljudmila, Aleksandrov, Vladimir, Georgieva, Katya

Journal:

Environmental and Experimental Botany

Year:

2020

File:

PDF, 5.21 MB

2020

39

Mutual orientation of absorbing chromophores and long wavelength pigments in photosystem I particles

Atanaska Andreeva, Maya Velitchkova

Journal:

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Year:

1998

Language:

english

File:

PDF, 117 KB

english, 1998

40

Differential temperature effects on dissipation of excess light energy and energy partitioning in lut2 mutant of Arabidopsis thaliana under photoinhibitory conditions

Popova, Antoaneta V., Dobrev, Konstantin, Velitchkova, Maya, Ivanov, Alexander G.

Journal:

Photosynthesis Research

Year:

2018

Language:

english

File:

PDF, 1.71 MB

english, 2018

41

Quality control of Photosystem II: Cleavage and aggregation of heat-damaged D1 protein in spinach thylakoids

Keisuke Komayama, Mahbuba Khatoon, Daichi Takenaka, Junko Horie, Amu Yamashita, Miho Yoshioka, Yohsuke Nakayama, Mari Yoshida, Satoshi Ohira, Noriko Morita, Maya Velitchkova, Isao Enami, Yasusi Yamamo

Journal:

Biochimica et Biophysica Acta (BBA) - Bioenergetics

Year:

2007

Language:

english

File:

PDF, 1.01 MB

english, 2007

42

Effects of Short-Time Heat Stress on the Parameters of Cation induced Increase of Chlorophyll Fluorescence in Pea Thylakoid Membranes

Velitchkova, Maya Y., Ivanov, Alexander G.

Journal:

Journal of Plant Physiology

Year:

1993

Language:

english

File:

PDF, 646 KB

english, 1993

43

Variable-energy positron annihilation lifetime and Doppler broadening of the annihilation line study of carbon-implanted polyethylene

N. Djourelov, T. Suzuki, Y. Ito, K. Velitchkova, K. Kondo

Journal:

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

Year:

2004

Language:

english

File:

PDF, 359 KB

english, 2004

44

Immobilization and topochemical mechanism of a new β-amylase extracted from Pergularia tomentosa

Lahmar, Imen, Radeva, Greta, Marinkova, Dessislava, Velitchkova, Maya, Belghith, Hafedh, Ben abdallah, Ferjani, Yotova, Lyubov, Belghith, Karima

Journal:

Process Biochemistry

Year:

2017

Language:

english

File:

PDF, 928 KB

english, 2017

45

Selective Photobleaching of Chlorophylls and Carotenoids in Photosystem I Particles under High-Light Treatment

Atanaska Andreeva, Silvia Abarova, Katerina Stoitchkova, Rafael Picorel, Maya Velitchkova

Journal:

Photochemistry and Photobiology

Year:

2007

Language:

english

File:

PDF, 280 KB

english, 2007

46

Comparison of thylakoid structure and organization in sun and shade Haberlea rhodopensis populations under desiccation and rehydration

Sárvári, Éva, Mihailova, Gergana, Solti, Ádám, Keresztes, Áron, Velitchkova, Maya, Georgieva, Katya

Journal:

Journal of Plant Physiology

Year:

2014

Language:

english

File:

PDF, 3.07 MB

english, 2014

47

Carbon-Implanted Polyethylene Characterized by a Pulsed Slow-Positron Beam

Djourelov, Nikolay, Suzuki, Takenori, He, Chun Qing, Ito, Yasuo, Velitchkova, Kalina, Hamada, E., Kondo, Kenjiro

Journal:

Materials Science Forum

Year:

2004

Language:

english

File:

PDF, 290 KB

english, 2004

48

Temperature dependence of surface DC electrical conductivity of carbon-implanted polymers modified by gamma irradiation

K Velitchkova, K Krezhov, S Balabanov

Journal:

Year:

2000

Language:

english

File:

PDF, 113 KB

english, 2000

49

Methyl Jasmonate Counteract UV-B Stress in Barley Seedlings

I. Fedina, D. Nedeva, K. Georgieva, M. Velitchkova

Journal:

Journal of Agronomy and Crop Science

Year:

2009

Language:

english

File:

PDF, 363 KB

english, 2009

50

Tomato plants acclimate better to elevated temperature and high light than to treatment with each factor separately

Gerganova, Milena, Popova, Antoaneta V., Stanoeva, Daniela, Velitchkova, Maya

Journal:

Plant Physiology and Biochemistry

Year:

2016

Language:

english

File:

PDF, 1.62 MB

english, 2016

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