152 research outputs found
Parmanu-Gunak
No full textParmanu-Gunak is a free Python based GUI application for reducing single and double spike isotope dilution data.
Version 1.0
Please contact the author at [email protected] for any questions related to Parmanu-Gunak. If you use Parmanu-Gunak for your data reduction, then please cite the following paper:
Pathak, D. (2023), Parmanu-Gunak: Data Reduction Software for Isotope Dilution Analysis. Geostand Geoanal Res. https://doi.org/10.1111/ggr.12476
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An Efficient and Convenient Method for the Synthesis of Dialkoxymethanes Using Kaolinite as a Catalyst.
No full textSynthesis and development of Chitosan anchored copper(II) Schiff base complexes as heterogeneous catalysts for N-arylation of amines
No full textUnprecedented formation of a μ -oxobridged polymeric copper(II) complex: Evaluation of catalytic activity in synthesis of 5-substituted 1 H -tetrazoles
No full textThe reaction of CuCl2·2H2O with Schiff base ligand, 4-[(2-hydroxy-3-methoxybenzylidene)amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3-one] (hmdpH), in 1:1 molar ratio led to a novel and unprecedented oxo-bridged polymeric copper (II) complex, [Cu(μ-O) (hmdp)]n. The complex was isolated as crystalline solid and characterized by FTIR, UV–visible and EPR spectroscopic techniques. The molecular structure of the complex was also determined by single crystal X-ray diffraction studies. The formation of the complex is unique and unprecedented in the sense that one of the CH3 group of the 4-aminoantipyrene unit of the Schiff base ligand is oxidized in situ to CH2OH, during the complex formation. The catalytic potential of the complex has been demonstrated in the synthesis of a series of 5-substituted 1H-tetrazoles via [3 + 2]-cycloaddition reactions of substituted benzonitriles and sodium azide in ethylene glycol
Corrigendum: Proceedings of the 12th annual deep brain stimulation think tank: cutting edge technology meets novel applications
No full textIn the published article, there was an error in the author list and author Sarah-Anna Hescham was erroneously excluded. The corrected author list appears below. “Alfonso Enrique Martinez-Nunez 1*, Christopher J. Rozell 2, Simon Little 3, Huiling Tan 4, Stephen L. Schmidt 5, Warren M. Grill 5,6, Miroslav Pajic 5, Dennis A. Turner 5,6,7, Coralie de Hemptinne 1, Andre Machado 8,9, Nicholas D. Schiff 10, Abbey S. Holt-Becker 11, Robert S. Raike 11, Mahsa Malekmohammadi 12,13, Yagna J. Pathak 14, Lyndahl Himes 14, David Greene 15, Lothar Krinke 16,17, Mattia Arlotti 16, Lorenzo Rossi 16, Jacob Robinson 18,19, Bahne H. Bahners 20,21,22, Vladimir Litvak 23, Luka Milosevic 24,25, Saadi Ghatan 26,27, Frederic L. W. V. J. Schaper 20, Michael D. Fox 20, Nicholas M. Gregg 28, Cynthia Kubu 8, James J. Jordano 29,30,31, Nicola G. Cascella 32, YoungHoon Nho 33, Casey H. Halpern 33,34, Helen S. Mayberg 35,36,37, Ki Sueng Choi 35,36, Haneul Song 35, Jungho Cha 35, Sankaraleengam Alagapan 2, Nico U. F. Dosenbach 38,39,40,41,42,43, Evan M. Gordon 44, Jianxun Ren 45, Hesheng Liu 45,46, Lorraine V. Kalia 47,48, Sarah-Anna Hescham 49,50,51, Dorian M. Kusyk 1, Adolfo Ramirez-Zamora 1, Kelly D. Foote 1, Michael S. Okun 1 and Joshua K. Wong 1.” The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.</p
Palladium nanoparticles immobilized on a magnetic chitosan-anchored Schiff base: applications in Suzuki–Miyaura and Heck–Mizoroki coupling reactions
No full textA palladium nanocatalyst Fe3O4@CS-SB-Pd has been synthesized and characterized by FT-IR, XRD, XPS, FESEM, EDX, TEM, TGA, and ICP-AES analysis.</p
On Measuring the Criticality of Various Variables and Processes in Organization Information Systems: Proposed Methodological Procedure
No full textThis paper proposes methodological procedures to be used by the accounting, organizational and managerial researchers and executives to ascertain the criticality of the variables and the processes in the measurement of management control system. We have restricted the validation of proposed methods to the extraction of critical success factors (CSF) in this study. We have also provided a numerical illustration and tested our methodological procedures using a dataset of an empirical study conducted for the purpose of ascertaining the CSFs. The proposed methods can be used by the researchers in accounting, organizational information systems, economics, and business and also in other relevant disciplines of organizational sciences. The main contribution of this paper is the extension of Rockart’s work [33] on critical success factors. We have extended the theory of CSF beyond the initially suggested domain of information into management control system decision making. The methodological procedures developed by us are expected to enrich the literature of analytical and empirical studies in accounting and organizational areas where it can prove helpful in understanding the criticality of individual variables, processes, methods or success factors.Success Factors, Criticality Analysis, Perceptual Criticality, Critical Success Factors
Synthesis and crystal structures of salen-type Cu(II) and Ni(II) Schiff base complexes : application in [3+2]-cycloaddition and A3-coupling reactions
No full textThe synthesis of two new salen-type Schiff base complexes of the type [Cu(L)]·0.5H2O, 1, and [Ni(L)], 2, from the reaction of a 6,6′-[(1E,1′E)-(cyclohexane-1,2-diylbis(azanylylidene))bis(methanylylidene)bis(3-(diethylamino)phenol)] salen-type Schiff base ligand (H2L) with Cu(OAc)2·H2O and Ni(OAc)2·4H2O in methanol at room temperature, respectively, is described. The complexes are isolated as coloured crystalline solids and characterized by elemental analysis, FT-IR spectroscopy, UV-visible spectroscopy and single crystal X-ray diffraction studies. The paramagnetic nature of complex 1, having giso = 2.076, was confirmed by EPR studies, which indicated a distorted square planar geometry of the complex. In contrast to this, the nickel complex was found to be diamagnetic in nature and it was additionally characterized by 1H NMR. The crystal structures of complexes 1 and 2 confirm the distorted square planar geometry of both the complexes. Complex 1 was found to be a better catalyst for the synthesis of a series of 5-substituted 1H-tetrazoles from nitriles and sodium azide via [3+2]-cycloaddition and for the A3-coupling reaction of aldehydes, secondary amines and terminal alkynes with a low catalyst loading (0.7 and 0.9 mol%, respectively) as compared to complex 2. Complex 1 is novel in the sense that, being a homogeneous catalyst, it can be recovered almost quantitatively in both reactions and recycled up to four times to afford good yields of the corresponding products
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