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75篇 您的检索式:作者名="Grigorova"
    题名 作者 年代 出处 被引量
1Effect of an aldose reductase inhibitor on type Ⅳ collagen production by human endothelial cells cultured in high glucose显示文摘Bakillah A Grigorova Borsos AM Guillot R 1996Diabetologia1996,39,:2
2Resonance-enhanced multi-octave supercontinuum generation in antiresonant hollow-core fibers显示文摘Ultrafast supercontinuum generation in gas-filled waveguides is an enabling technology for many intriguing applications ranging from attosecond metrology towards biophotonics,with the amount of spectral broadening crucially depending on the pulse dispersion of the propagating mode.In this study,we show that structural resonances in a gas-filled antiresonant hollow core optical fiber provide an additional degree of freedom in dispersion engineering,which enables the generation of more than three octaves of broadband light that ranges from deep UV wavelengths to near infrared.Our observation relies on the introduction of a geometric-induced resonance in the spectral vicinity of the ultrafast pump laser,outperforming gas dispersion and yielding a unique dispersion profile independent of core size,which is highly relevant for scaling input powers.Using a krypton-filled fiber,we observe spectral broadening from 200 nm to 1.7μm at an output energy of B 23μJ within a single optical mode across the entire spectral bandwidth.Simulations show that the frequency generation results from an accelerated fission process of solitonlike waveforms in a non-adiabatic dispersion regime associated with the emission of multiple phase-matched Cherenkov radiations on both sides of the resonance.This effect,along with the dispersion tuning and scaling capabilities of the fiber geometry,enables coherent ultra-broadband and high-energy sources,which range from the UV to the mid‐infrared spectral range.Rudrakant Sollapur Daniil Kartashov Michael Zürch Andreas Hoffmann Teodora Grigorova Gregor Sauer Alexander Hartung Anka Schwuchow Joerg Bierlich Jens Kobelke Mario Chemnitz Markus A Schmidt Christian Spielmann 2017Light(Science & Applications)2017,6,1:2
3Response of barley seed- lings to UV-B radiation as affected by NaC1 显示文摘Fedina I S Grigorova I D Georgieva K M 2003Journal Plant Physiology2003,160,2:1
4Contaminants in sediments:remobilisation and demobilisation显示文摘Zoumis T Schmidt A Grigorova L 2001Science of the Total Environment2001,266,1:1
5Differential effects of estrogen and micronized progesterone or medroxyprogesterone acetate on cognition in postmenopausal women显示文摘Sherwin BB Grigorova M 2011Fertil Steril2011,96,2:1
6Contamination in sediments, Remobilization and demobilization显示文摘Zoumis T Schmidt A Grigorova L 2001Science of To- tal Environment2001,266,:1
7Response of barely seeding to UV-B radiation as affected by NaC1 显示文摘Fedina I S Grigorova I D Georgieve K M 2003Journal of Plant Physiology2003,160,:1
8EM algorithm for MLE of a probit model for multiple ordinal outcomes 显示文摘GRIGOROVA D ENCHEVA E GUEORGUIEVA R 2013Serdica J Comput2013,7,3:1
9Q-T interval disparsion in patients with coronary heart disease in various terms after angioplastic revascularization显示文摘Kuzubova AV Afanas'ev IuI Grigorova SIu 2008Klin Med(Mosk)2008,86,4:1
10Chromosome analysis of nuclear power plant workers using fluorescence in situ hybridization and Giemsa assay显示文摘Hristova R Hadjidekova V Grigorova M el al 2013J Rad Res2013,54,5:1
11Light-dark changes in proline content barley leaves under salt stress显示文摘Fedna I S Georgieva K Grigorova I 2002Biol Plant2002,45,1:1
12Combined drought and heat stress in wheat: changes in some heat shock proteins显示文摘Grigorova B Vaseva I Demirevska K 2011Biologia Plantarum2011,55,1:1
13Proteolytic ac- tivity and cysteine protease expression in wheat leaves under se- vere soil drought and recovery 显示文摘Simova-Stoilova L Vaseva I Grigorova B 2010Plant Physiology and Bio- chemistry2010,48,2:1
14Hydrogen sorption properties of the nanocomposites Mg-Mg2Ni1-x Fex显示文摘Bobet J L Grigorova E Khrussanova M Khristov M Radev D Peshev P 0,,1:1
15Lipid composition of some yeast strains from Livingston island, Antractica 显示文摘Zlatavov N Parlova K Grigorova D 2001Folia Micro- biol2001,46,5:1
16Reflux gastritis due to Helicobacter pylori as the cause of unsatisfactory results of cholecystecto- my显示文摘Gnatiuk NG Furmanenko ED Grigorova IV 1997Klin Khir1997,,1:1
17Genetic variation of TGF-BR2 as a protective genotype for the development of colorectal cancer in men显示文摘BACKGROUND The role of transforming growth factor beta(TGF-β)signaling,including both the cytokine and their receptors,in the etiology of colorectal cancer(CRC)has been of particular interest lately.AIM To investigate the association between promoter polymorphism in TGF-β receptor 2 TGF-BR2G^([-875])A with a CRC risk in a cohort of Bulgarian patients using a casecontrol gene association study approach,as well as the protein levels of TGF-β1 in the peripheral blood.METHODS A cohort of 184 CRC patients and 307 sex and age-matched healthy subjects were recruited in the study.A genotyping of the TGF-BR2G^([-875])A(rs3087465)polymorphism was performed by primer-introduced restriction analysespolymerase chain reaction approaches.RESULTS The frequency of TGF-BR2G^([-875])A genotype was decreased in male patients with CRC than in healthy men(31.3%vs 44.8%;P=0.058).Among males,the TGF-BR2G[-509]G genotype was related to a significantly increased risk of CRC development(OR=1.820,95%CI:0.985-3.362,P=0.055)than the GA+AA genotype.Also,TGF-BR2^([-875])*A-allele itself was rarer in men with CRC than healthy men(19.1%vs 26.9%,P=0.086)and was associated with a protective effect(OR=0.644;95%CI:0.389-1.066;P=0.086).Regarding the genotypes,we found that TGF-β1 serum levels were higher in GG genotype in healthy persons above 50 years than the CRC patients[36.3 ng/mL interquartile range(IQR)19.9-56.5 vs 22.4 ng/mL IQR 14.8-29.7,P=0.014].We found significant differences between higher levels of TGF-β1 serum levels in healthy controls above 50 years(GG genotype)and CRC patients(GG genotype)at the early stage(36.3 ng/mL IQR 19.9-56.5 vs 22.8 ng/mL IQR 14.6-28.6,P=0.037)and advanced CRC(36.3 ng/mL IQR 19.9-56.5 vs 21.6 ng/mL IQR 15.9-33.9,P=0.039).CONCLUSION In summary,our results demonstrated that TGF-BR2 AG and AA genotypes were associated with a reduced risk of CRC,as well as circulating levels of TGF-βcould prevent CRC development in a gender-specific manner.Notably,male carriers of TGF-BR2-875A allele genotypes had a lower risk of CRC development and progression,suggesting that TGF-BR2-875A/G polymorphism significantly affects the protective biological factors that also impact the risk of colon and rectal carcinogenesis.Noyko Stanilov Antonia Grigorova Tsvetelina Velikova Spaska Angelova Stanilova 2021World Journal of Gastrointestinal Oncology2021,13,11:1
18Expression of selected heat shock proteins after indi- vidually applied and combined drought and heat stress 显示文摘GRIGOROVA B VASEVA I I DEMIREVSKA K 2011Acta Physiologiae Plantarum2011,33,5:1
19Chromosome analysis of nuclear power plant workers using fluorescence in situ hy- bridization and Giemsa assay 显示文摘Rositsa HRISTOVA Valeria HADJIDEKOVA Mira GRIGOROVA el al 2013Journal of Radiation Research2013,18,:1
20Reflux gastritis due to Helicobacter pylori as the cause of unsatisfactory results of cholecystectomy 显示文摘Gnatiuk NG Furmanenko ED Grigorova IV 1997Klin Khir1997,,1:1
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