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1

Cytology of oocytes in ground squirrels (Citellus citellus L.)

Tsvetan Tsvetkov, Tsvetanka Takeva

Journal:

Année:

1989

Langue:

english

Fichier:

PDF, 10.56 MB

english, 1989

2

[IEEE 2008 4th International IEEE Conference "Intelligent Systems" (IS) - Varna, Bulgaria (2008.09.6-2008.09.8)] 2008 4th International IEEE Conference Intelligent Systems - Volterra model predictive control of a lyophilization plant

Todorov, Yancho V., Tsvetkov, Tsvetan D.

Année:

2008

Langue:

english

Fichier:

PDF, 730 KB

english, 2008

3

Transgenic tobacco plants accumulating osmolytes show reduced oxidative damage under freezing stress

Daniela Parvanova, Sergei Ivanov, Tatyana Konstantinova, Emanuil Karanov, Atanas Atanassov, Tsvetan Tsvetkov, Vera Alexieva, Dimitar Djilianov

Journal:

Plant Physiology and Biochemistry

Année:

2004

Langue:

english

Fichier:

PDF, 338 KB

english, 2004

4

Characterization of freeze–dried egg melange long stored after irradiation

Stefan Bakalivanov, Eli Tsvetkova, Todorka Bakalivanova, Tsvetan Tsvetkov, Nikolay Kaloyanov, Stoyanka Grigorova, Vanja Alexieva

Journal:

Radiation Physics and Chemistry

Année:

2008

Langue:

english

Fichier:

PDF, 168 KB

english, 2008

5

Toward the mathematical modeling of heat and mass transfer in vacuum freeze-drying: I. Thermodynamic analysis of heat- and mass-transfer processes in capillary porous materials undergoing freeze-drying

Tsvetan D. Tsvetkov, Nikolai L. Vulchanov

Journal:

Année:

1981

Langue:

english

Fichier:

PDF, 825 KB

english, 1981

6

Studies on the effects of low temperatures on lactic acid bacteria

Tsvetan Tsvetkov, Irina Shishkova

Journal:

Année:

1982

Langue:

english

Fichier:

PDF, 312 KB

english, 1982

7

Effect of the cryoprotectant PEO-400 on the binding of exogenous cytochrome c to membranes of rat liver mitochondria

Tsvetan Tsvetkov, Lachezar Tsonev, Svetoslav Krastev, Kerana Dancheva

Journal:

Année:

1983

Langue:

english

Fichier:

PDF, 6.43 MB

english, 1983

8

Functional changes in mitochondrial properties as a result of their membrane cryodestruction: I. Influence of freezing and thawing on succinate-ferricyanide reductase of intact liver mitochondria

Tsvetan Tsvetkov, Latchezar Tsonev, Nichola Meranzov, Ignat Minkov

Journal:

Année:

1985

Langue:

english

Fichier:

PDF, 474 KB

english, 1985

9

A quantitative evaluation of the extent of inner mitochondrial membrane destruction after freezing-thawing based on functional studies

Tsvetan Tsvetkov, Latchezar Tsonev, Ignat Minkov

Journal:

Année:

1986

Langue:

english

Fichier:

PDF, 4.76 MB

english, 1986

10

Functional changes in mitochondrial properties as a result of their membrane cryodestruction: II. Influence of freezing and thawing on ATP complex activity of intact liver mitochondria

Tsvetan Tsvetkov, Latchezar Tsonev, Nichola Meranzov, Ignat Minkov

Journal:

Année:

1985

Langue:

english

Fichier:

PDF, 523 KB

english, 1985

11

Preservation of integrity of the inner mitochondrial membrane after freeze-thawing and freeze-drying

Tsvetan Tsvetkov, Latchezar Tsonev, Nichola Meranzov, Ignat Minkov

Journal:

Année:

1985

Langue:

english

Fichier:

PDF, 3.80 MB

english, 1985

12

Activity of ATP synthetase complex after low temperature treatment or freeze-drying of mitochondria isolated from skeletal muscles

Tsvetan Tsvetkov, Zlatina Naydenova

Journal:

Année:

1987

Langue:

english

Fichier:

PDF, 332 KB

english, 1987

13

Histoenzymatic activity of the Δ5-3β-hydroxysteroid dehydrogenase of ovary in hibernators (Citellus citellus L)

Tsvetan Tsvetkov, Tsvetanka Takeva

Journal:

Année:

1988

Langue:

english

Fichier:

PDF, 3.30 MB

english, 1988

14

Changes in interstitial gland in the ovary of the bat Rinolaphus eurale Blas: Arousal from hibernation

Tsvetan Tsvetkov, Tsvetanka Takeva

Journal:

Année:

1988

Langue:

english

Fichier:

PDF, 4.04 MB

english, 1988

15

The ovarium of the hibernator (Citellus citellus L.) after spring arousal

Tsvetan Tsvetkov, Tsvetanka Takeva

Journal:

Année:

1989

Langue:

english

Fichier:

PDF, 6.41 MB

english, 1989

16

Studies on the estrus cycle of the ground squirrel (Citellus citellus L.) at experimentally induced hibernation

Tsvetan Tsvetkov, Tsvetanka Takeva

Journal:

Année:

1989

Langue:

english

Fichier:

PDF, 3.52 MB

english, 1989

17

Seasonal changes of the ovarian atretic follicles of the ground squirrel (Citellus citellus L.)

Tsvetan Tsvetkov, Tsvetanka Takeva

Journal:

Année:

1989

Langue:

english

Fichier:

PDF, 9.60 MB

english, 1989

18

Some seasonal changes in the thecal gland in the ovaries of hibernators (Citellus citellus L.)

Tsvetan Tsvetkov, Tsvetanka Takeva

Journal:

Année:

1991

Langue:

english

Fichier:

PDF, 2.90 MB

english, 1991

19

[ACM Press the 37th international ACM SIGIR conference - Gold Coast, Queensland, Australia (2014.07.06-2014.07.11)] Proceedings of the 37th international ACM SIGIR conference on Research & development in information retrieval - SIGIR '14 - An interactive interface for visualizing events on Twitter

McMinn, Andrew J., Tsvetkov, Daniel, Yordanov, Tsvetan, Patterson, Andrew, Szk, Rrobi, Rodriguez Perez, Jesus A., Jose, Joemon M.

Année:

2014

Langue:

english

Fichier:

PDF, 1.08 MB

english, 2014

20

AIP Conference Proceedings [Author(s) 10th Jubilee International Conference of the Balkan Physical Union - Sofia, Bulgaria (26–30 August 2018)] - Spectral analysis of SOHO/ERNE protons in solar cycles 23 and 24

Miteva, Rositsa, Tsvetkov, Tsvetan

Année:

2019

Fichier:

PDF, 667 KB

2019

21

AIP Conference Proceedings [Author(s) 10th Jubilee International Conference of the Balkan Physical Union - Sofia, Bulgaria (26–30 August 2018)] - Filaments related to solar energetic particles

Tsvetkov, Tsvetan, Miteva, Rositsa, Petrov, Nikola

Année:

2019

Langue:

english

Fichier:

PDF, 773 KB

english, 2019

22

Comparison of Kinematics of Solar Eruptive Prominences and Spatial Distribution of the Magnetic Decay Index

Myshyakov, Ivan, Tsvetkov, Tsvetan

Journal:

The Astrophysical Journal

Année:

2020

Fichier:

PDF, 1.71 MB

2020

23

Quasiperiodic Velocity Fluctuations in Eruptive Prominences Observed by AIA/SDO

Tsvetkov, Tsvetan, Petrov, Nikola

Journal:

The Astrophysical Journal

Année:

2020

Fichier:

PDF, 838 KB

2020