نتایج جستجو برای: 2 b1

تعداد نتایج: 2538525  

2009
Z. Katerova E. Prinsen

The response of pea (Pisum sativum L., cv. Scinado) plants to low UV-B and UV-C radiation levels was studied in the 2nd leaves in relation to IAA, ABA and ACC contents. Following regimes of UV-B and UV-C radiation were used for 7, 10 or 14 consecutive days: B1 (4.4 kJ m-2 d-1), B2 (13.3 kJ m-2 d-1) and C1 (0.1 kJ m-2 d-1) and C2 (0.3 kJ m-2 d-1). As compared to control, IAA decreased after 10 d...

Journal: :The Journal of biological chemistry 1976
L Thelander B Larsson

Ribonucleoside diphosphate reductase is an allosteric enzyme consisting of two nonidentical subunits, proteins B1 and B2. B1 contains dithiols which participate in the oxidation-reduction reactions of electron transport, while B2 contains a free radical essential for activity. Ribonucleoside diphosphates are bound to B1 but not to B2. Addition of 2'-deoxy-2'-chloro ribonucleoside diphosphates t...

2017
Meng-Hsuan Cheng Yun-Hong Wong Chia-Ming Chang Chun-Chien Yang Shih-Hua Chen Chun-Lung Yuan Hsiao-Mei Kuo Chun-Yuh Yang Hui-Fen Chiu

We previously demonstrated that B1 induced significant cytotoxic effects, cell cycle G1 arrest and apoptosis in human lung cancer A549 cells through the inhibition of DNA topoisomerase II activity. In the present study, we focused on the histone deacetylase (HDAC) modulation of B1 in A549 cells. HDACs, important enzymes affecting epigenetic regulation, play a crucial role in human carcinogenesi...

Journal: :Al-Nahrain journal of science 2023

Some of organic ammonium salts, namely: 2-((4-carboxyphenyl) carbamoyl) benzoate tetraethylammonium, B1, 4-oxo-4-(pyridin-3-ylamino)-2-butenoate B2, 2-((4-carbamoylphenyl) B3, 4-((4-carbamoylphenyl)amino)-4-oxobutanoate B4, are successfully synthesized as ionic liquids. By spectral techniques FTIR, 1H-NMR and 13C-NMR the structures salts confirmed. The thermal analysis by differential scanning ...

Journal: :Poultry science 1994
R Y Nagaraj W D Wu R F Vesonder

The toxicity of Fusarium proliferatum M-7176 cultured on corn (FPC) and nutritional intervention were investigated in baby chicks (New Hampshire x Single Comb White Leghorn) in three 2-wk feeding experiments. In Experiment 1, 30% FPC decreased weight gain (P < .05) and increased relative heart weight (RHW) (P < .01). Experiment 2 included a 2 x 2 factorial arrangement of FPC (0 or 30%) and Se (...

Journal: :Filomat 2023

Recently, Zhu [34] introduced a Stirling-Whitney-Riordan triangle [Tn,k]n,k?0 satisfying the recurrence Tn,k = (b1k + b2)Tn?1,k?1 [(2?b1 a1)k a2 ?(b1 b2)]Tn?1,k ?(a1 ?b1)(k 1)Tn?1,k+1, where initial conditions 0 unless ? k n and T0,0 1. Denote by Tn Pnk =0 Tn,k. In this paper, we show asymptotic normality of give an formula Tn. As applications, many famous combinatorial numbers, such as Stirlin...

2006
Kyunghyun Sung Charles H. Cunningham Krishna S. Nayak

Introduction: In cardiac imaging, it is essential to consider the homogeneity of the active B1 field (B1+) [1]. We present a realtime implementation of Transmit In-Plane Compensation (TIP-COMP) RF pulse [2], which can compensate different B1+ variations. Methods: Experiments were performed on a GE Signa EXCITE 3.0T system using a custom real-time imaging system [3]. To validate the accuracy of ...

2010
Tacksun Jung Raul F. Manasevich

We investigate the existence of multiple nontrivial solutions ξ, η for perturbations b1 u 2 − 2 and b2 u 3 −3 of the beam systemwith Dirichlet boundary condition Lξ b1 ξ 3η 2 −2 in −π/2, π/2 ×R, Lη b2 ξ 3η 3 − 3 in −π/2, π/2 ×R, where u max {u, 0}, and μ, ν are nonzero constants. Here L is the beam operator in R2 , and the nonlinearity b1 u 2 − 2 b2 u 3 − 3 crosses the eigenvalues of the beam o...

2006
Arie Gurfinkel Ou Wei Marsha Chechik

ions. Following SLAM, abstractions are represented by Boolean Programs. Unlike SLAM, the semantics of these programs is given via a variant of Mixed Transition Systems (MixTS) [7, 11]. Compared to Modal and 3-valued TSs, MixTSs allow for (a) 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14: 15: 16: 17: int p1,p2,p3,x,y; p1=p2=p3=x=y=5; if(p3<=0) return; if(y<0) {if(x>2){ if(y>10) {if(p2>0) ERROR;}...

Journal: :Carcinogenesis 1996
W H Tolleson W B Melchior S M Morris L J McGarrity O E Domon L Muskhelishvili S J James P C Howard

Fumonisin B1 is associated with various animal and human carcinomas and toxicoses, including leukoencephalomalacia, hepatocarcinoma, pulmonary edema and esophageal carcinoma. We have examined the cellular effects of fumonisin B1 in vitro using cellular model systems relevant to potential human target tissues. Although fumonisin B1 has been described as a mitogen in Swiss 3T3 cells based on stim...

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