This paper is about the construction and reconfiguration analysis of a novel variable-DOF (or kinematotropic) single-loop 7R spatial mechanism, which is composed of seven R (revolute) joints. Firstly, the novel variable-DOF single-loop 7R spatial mechanism is constructed from a general variable-...
Singularity is a fundamental problem in robotics which seriously affects the motion control, path planning, and off-line programing of the robot. In this paper, the singularities of a 7R 6-DOF painting robot with non-spherical wrist are analyzed in detail, and a new avoidance method is proposed....
Interleukin 7 (IL-7) and its receptor (IL-7R, a heterodimer of IL-7Rα and γc) are essential for normal lymphoid development. In their absence, severe combined immunodeficiency occurs. By contrast, excessive IL-7/IL-7R-mediated signaling can drive lymphoid leukemia development, disease accelera...
Modulating inflammation by targeting IL-1β reduces recurrent athero-thrombotic cardiovascular events without lipid lowering. This presents an opportunity to explore other pathways associated with the IL-1β signaling cascade to modulate the inflammatory response post-myocardial infarction (MI)....
This work aimed to evaluate the bioactivity of 3-(p-chlorophenyl)thio citronellal against planktonic and biofilm cells of S. aureus and its use in biodegradable films. 3-(p-chlorophenyl)thio citronellal demonstrated antimicrobial activity against planktonic (MIC = 62.5 ± 0.5 μg.mL−1) and biofi...
Novel pyrazole derivative, 3-(3-methoxyphenyl)-5-(3-methylthiophen-2-yl)-4,5-dihydro-1H-pyrazole-1-carboxamide was synthesized, characterized by NMR, mass spectra, FT-IR, UV–Visible, TG-DTG and finally the three dimensional structure was confirmed by single crystal X-ray diffraction studies. A ...
The compound, 5-(4-Methoxyphenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazole-1-carbothioamide was synthesized by the reaction of 3-(4-methoxyphenyl)-1-(thiophen-2-yl)prop-2-en-1-one and thiosemicarbazide and characterized by single crystal X-ray diffraction studies. The compound C15H15N3OS2 cryst...
Four new mononuclear dioxidomolybdenum(VI) complexes of the type [MoO2LD] (where D= methanol (1), ethanol (2), propanol (3) and [MoO2LD]2·D (where D= 4-picoline (4)) have been synthesized by the reaction of [MoO2(acac)2] with the thiosemicarbazone (H2L) derived from 3-ethoxy-2-hydroxybenzaldehy...
We report here the synthesis and a combined experimental and theoretical study on molecular structure of 2-thioxo- 3N-(2-methoxyphenyl) −5 [4′-methyl -3′N -(2′-methoxyphenyl) thiazol-2′(3′H)-ylidene] thiazolidin-4-one. The crystal structure has been determined by X-ray diffraction. Crystall...
The title compounds C17H17NO4S (I) and C17H17NO4S(II) crystallized in the monoclinic system with the space group of P21/c. The dihedral angles of 8.88(2)˚ and 10.54(13)˚ are observed between their terminal rings for I and II, respectively. Intramolecular hydrogen bonds form a pair of S(6) ring m...
This work focuses on new materials based on the addition of zinc as specifically metal centers for the capture of NO2 gas with DFT calculations. This study aims at the synthesis and the spectroscopic characterizations of the free base meso-tetrakis-,(3,4,5trimethoxyphenyl)porphyrin (H2TTMP) (I),...
Based on our previous research, three series of new triazolylthioacetamides possessing 3,4,5-trimethoxyphenyl moiety were synthesized, and evaluated for antiproliferative activities and inhibition of tubulin polymerization. The most promising compounds 8b and 8j demonstrated more significant ant...
Phosphitylation of the allylic hydroxy group in 9-tetrahydropyranyltrans-zeatine with salicyl chlorophosphite gives the allyl phosphonate monoester 5, which can be readily converted into the corresponding phosphate 7, methylphosphate 8 or thiophosphate 9. After cleavage of the tetrahydropyranyl ...
Zeatin-binding protein (67 ± 2 kDa) was isolated from the cytosol of the first leaf of 10-day-old barley plants. The protein fits to all requirements for a zeatin receptor: (i) it binds [3H]trans-zeatin reversibly and specifically, (ii) it is recognized by anti-idiotype antibodies from antiseru...
Cytokinin (CK) is a plant hormone that plays important regulatory roles in many aspects of plant growth and development. Although functions of CK and its biosynthesis pathway have been studied extensively, there is still no efficient biosynthesis inhibitor, which would be useful for studying CK ...
Cytokinins (CKs) are an important group of phytohormones. Their tightly regulated and balanced levels are essential for proper cell division and plant organ development. Here we report precise quantification of CK metabolites and other phytohormones in maize reproductive organs in the course of ...
A pot experiment was conducted to compare the content of endogenous trans-zeatin (Z), plant arsenic (As) uptake and physiological indices in the fronds of As-hyperaccumulator (Pteris cretica var. nervosa) and non-hyperaccumulator (Pteris ensiformis). Furthermore, a stepwise regression method was...
The aim was to `triprotect' trehalose by placing various acetals, or related protecting groups, across the 4,6-, 2′,3′-, and 4′,6′-positions, leaving the 2,3-positions free for subsequent acylation. Isopropylidene and ethylidene acetals were studied, with the formation of a small amount...
Polymer supported catalysts with Co(II) and Cr(VI) ions were prepared and characterized by means of FTIR, diffuse reflectance UV–vis, nitrogen physisorption, mercury porosimetry and SEM–EDX measurements. The catalytic activity and selectivity of the polymer supported catalysts were tested in a...
In this research, the suspension polymerization method was used for synthesis of the nano-composite between Molecularly Imprinted Polymers (MIP) and Multiwall Carbon Nanotubes (MWCNT) for the first time. The chlorpromazine (CPZ) drug was applied as template molecule. The MIP-MWCNT nanocomposite ...
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