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831 results on '"Kubisiak A"'

451. An anion induced multisignaling probe for Hg2+ and its application for fish kidney and liver tissue imaging studies.

Author

Mandal, Sandip, Banerjee, Arnab, Ghosh, Debasree, Mandal, Dipak Kumar, Safin, Damir A., Babashkina, Maria G., Robeyns, Koen, Mitoraj, Mariusz P., Kubisiak, Piotr, Garcia, Yann, and Das, Debasis

Subjects
MERCURY in the body, BIOACCUMULATION in fishes, DIAGNOSTIC imaging, FLUORESCENCE, COLORIMETRIC analysis, RING-opening reactions
Abstract

3′,6′-Bis(diethylamino)-2-(pyridin-2-ylmethyl)spiro[isoindoline-1,9′-xanthen]-3-one (L) was synthesized for the selective fluorescence and colorimetric recognition of Hg2+ at pH 6.0. In addition, L was useful for imaging Hg2+ in fish kidney and liver tissues using a fluorescence microscope. Spirolactam ring opening of L for Hg2+ recognition is strongly influenced by the nature of the mercury salt and found to be NO3−-induced. Other mercury salts such as HgCl2, Hg(CH3COO)2 and Hg(ClO4)2 failed to induce fluorescence and colorimetric response of L under the same experimental conditions. For instance, the former salt does not exhibit spirolactam ring opening but forms a new ionic compound (H3L)2[Hg6Cl18]·2H2O (1), whose structure has been elucidated by single crystal X-ray diffraction. This might be explained by (1) the higher covalent nature of Hg2+ and, hence, the lower acidity of the metal center and its inability to induce the ring opening reaction, and (2) the bulky anion, in the case of Hg(ClO4)2, which is also ionic, faces steric hindrance to accommodate within the N(Et)2 group upon spirolactam ring opening. [ABSTRACT FROM AUTHOR]

Published
2015
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452. Supramolecular Coordination Complexes of the N-Thiophosphorylated 2,5-Dithiobiurea [NHC(S)NHP(S)(O iPr)2]2 with ZnII and CdII Ions - Cation-Induced Dinuclear Mesocate Structure versus Tetranuclear Nanoscaled Aggregate

Author

Safin, Damir A., Babashkina, Maria G., Kubisiak, Piotr, Mitoraj, Mariusz P., Le Duff, Cécile S., Robeyns, Koen, and Garcia, Yann

Subjects
NANOSTRUCTURES, INORGANIC chemistry, CADMIUM, LIGANDS (Chemistry), CADMIUM compounds
Abstract

The reaction of the deprotonated N-thiophosphorylated bisthiourea N, N′-bis(diisopropoxythiophosphorylamidothiocarbonyl)hydrazine {[NHC(S)NHP(S)(O iPr)2]2, H2L} with ZnCl2 leads to the complex [Zn2{[NHC(S)NP(S)(O iPr)2]2}2] ([Zn2L2]), in which two metal cations are each 1,5- S, S′-coordinated through the sulfur atoms of the thiocarbonyl and thiophosphoryl groups of the pendant deprotonated thioacylamidothiophosphate functions. The same reaction with CdCl2 leads to the tetranuclear nanoscaled aggregate [(Cd2{[NC(S)NHP(S)(O iPr)2]2}2)2] ([(Cd2L2)2]). This complex contains ligands that are doubly deprotonated through their hydrazine NH groups and exhibit unprecedented μ4 and μ5 coordination modes. DFT calculations have shown that both complexes are stabilized not only by typical coordination bonds (Zn-S, Cd-S) but also by numerous intramolecular 'noncovalent' interactions: polar C-H ···S and N-H ···S, nonpolar C-H ···H-C, and σ-hole bonding (S ···S). [ABSTRACT FROM AUTHOR]

Published
2014
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460. Differential gene expression in loblolly pine (Pinus taeda L.) challenged with the fusiform rust fungus, Cronartium quercuum f.sp. fusiforme

Author

Myburg, Henrietta, primary, Morse, Alison M., additional, Amerson, Henry V., additional, Kubisiak, Thomas L., additional, Huber, Dudley, additional, Osborne, Jason A., additional, Garcia, Saul A., additional, Nelson, C. Dana, additional, Davis, John M., additional, Covert, Sarah F., additional, and van Zyl, Leonel M., additional

Published
2006
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469. Genome Mapping in Citrullus Populations Segregating for Fusarium Wilt Resistance

Author

Bill Rhodes, Leigh K. Hawkins, Fenny Dane, Tom Kubisiak, and Bob Jarrett

Subjects
Horticulture, Gene mapping, Resistance (ecology), Citrullus lanatus, food and beverages, Biology, biology.organism_classification, Fusarium wilt
Abstract

Fusarium wilt, caused by the soilborne fungus Fusarium oxysporum f.sp.niveum(FON), is one of the most economically important diseases of watermelon (Citrullus lanatus) worldwide. FON has been divided into three races (races 0, 1, and 2) determined by differential pathogenicity assays. Most commercial cultivars are resistant to races 0 and 1; whereas none are resistant to race 2. Few morphological and isozyme variations are seen in the cultivated watermelon, but molecular markers, such as random amplified polymorphic DNA (RAPD), amplified fragment length polymorphisms (AFLPs) and simple sequence repeats (SSRs), have been shown to generate several polymorphisms. Segregating populations, derived from a cross between watermelon cultivar New Hampshire Midget, susceptible to all three races of FON and the resistant C. lanatus plant introduction PI 296341, were used to detect molecular markers linked to Fusarium wilt resistance. In a preliminary experiment, more than 180 10-mer primers were screened against the parents and the F1. Informative RAPD primers were identified and used in conjunction with AFLP and SSR markers to generate a genome map.

Published
1998

470. Chestnut.

Author

Pereira-Lorenzo, Santiago, Ballester, Antonio, Corredoira, Elena, Vieitez, Ana M., Agnanostakis, Sandra, Costa, Rita, Bounous, Giancarlo, Botta, Roberto, Beccaro, Gabriele L., Kubisiak, Thomas L., Conedera, Marco, Krebs, Patrik, Yamamoto, Toshiya, Sawamura, Yutaka, Takada, Norio, Gomes-Laranjo, José, and Ramos-Cabrer, Ana M.

Published
2012
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475. Missed opportunity: identifying causes of injury for medicare beneficiaries

Author

Viconti, M., Gilden, D., Kubisiak, J., Hakim, R., Blum, J., and Garnick, D.

Subjects
Health, Seniors
Abstract

Injuries are a major cause of morbidity, mortality and disability for elders, and of expense to Medicare ($8.1 billion in claims for 1999). Interventions to reduce injury risk are not widely disseminated. Information on external cause of injury [s crucial for estimates of potential savings from prevention. For a random sample (N= 1,428,770) of fee-for-service Medicare beneficiaries aged 65+, beneficiaries with incident injury diagnoses (ICD-9 800 to 995) were identified from 1998 Medicare claims. 73.2% of injured beneficiaries had no coded cause of injury (E code). The rate of missing E codes was only somewhat lower for hospitalized and serious injuries (e.g. fracture of the femur, 55% missing). E code reporting differs by injury diagnosis and by sex, showing differing patterns of injury by sex. When claims for so many beneficiaries receiving injury diagnoses omit any reported cause of injury, an opportunity is lost to support and target prevention efforts.

Published
2002

476. Fagaceae Trees.

Author

Kole, Chittaranjan, Kremer, Antoine, Casasoli, Manuela, Barreneche, Teresa, Bodénès, Catherine, Sisco, Paul, Kubisiak, Thomas, Scalfi, Marta, Leonardi, Stefano, Bakker, Erica, Buiteveld, Joukje, Romero-Severson, Jeanne, Arumuganathan, Kathiravetpillai, Derory, Jeremy, Scotti-Saintagne, Caroline, Roussel, Guy, Bertocchi, Maria Evangelista, Lexer, Christian, Porth, Ilga, and Hebard, Fred

Published
2007
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477. Pines.

Author

Kole, Chittaranjan, Plomion, C., Chagné, D., Pot, D., Kumar, S., Wilcox, P. L., Burdon, R. D., Prat, D., Peterson, D. G., Paiva, J., Chaumeil, P., Vendramin, G. G., Sebastiani, F., Nelson, C. D., Echt, C. S., Savolainen, O., Kubisiak, T. L., Cervera, M. T., María, N., and Islam-Faridi, M. N.

Published
2007
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489. Quantum-Chemicaland Molecular Dynamics Study of M[TOTO]−(M = Li, Na, K) Ionic Liquids.

Author

Eilmes, Andrzej and Kubisiak, Piotr

Subjects
*QUANTUM chemistry, *MOLECULAR dynamics, *IONIC liquids, *MOLECULAR structure, *IONS, *COMPLEX compounds, *CROSSLINKING (Polymerization)
Abstract

Quantum-chemical calculations andclassical molecular dynamicssimulations with the Optimized Potentials for Liquid Simulations-AllAtom (OPLS-AA) force field are presented for ionic liquids based on2,5,8,11-tetraoxatridecan-13-oate anion (TOTO) and alkali cations(Li, Na, K). Complexation energies decrease with increasing cationradius from Li to K. Cation interactions with carboxylate oxygen atomsare preferred over complexation to ether oxygens. Cross-linking occursin the structure of the liquid because of interactions of multiplemetal ions with carboxylate oxygen atoms from multiple TOTO anions.Anticorrelated motion of ions of the same charge is an important factordecreasing conductivity of the liquid. Results of modeling agree withavailable experimental data for Na-TOTO. [ABSTRACT FROM AUTHOR]

Published
2013
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490. Experimental and theoretical investigations of the NiII complex with N-phosphorylated thiourea iPrNHC(S)NHP(O)(OPh)2.

Author

Safin, Damir A., Babashkina, Maria G., Robeyns, Koen, Mitoraj, Mariusz P., Kubisiak, Piotr, Brela, Mateusz, and Garcia, Yann

Subjects
THIOUREA, CRYSTALLIZATION, ACETONE, HYDROGEN bonding, X-ray diffraction, MOLECULAR dynamics
Abstract

The N-phosphorylated thiourea iPrNHC(S)NHP(O)(OPh)2 (HL) has been synthesized by the reaction of iPrNH2 and (PhO)2P(O)NCS. Recrystallization of HL from aqueous acetone leads to [iPrNH3]+[P(O)2(OPh)2]− in a quantitative yield. Reaction of the deprotonated HL with NiCl2 leads to violet [NiL2] crystals with a 1,3-N,S-coordination mode of the ligands. Static DFT and ab initio molecular dynamics studies indicated that [NiL2] is stabilized predominantly by intramolecular N–H…O=P hydrogen bonding and dynamically by secondary CPh–H…S interactions. All compounds have been characterized by IR, diffuse reflectance, UV-vis and NMR spectroscopy, single crystal X-ray diffraction analysis and elemental analysis. Thermal properties investigated in an air atmosphere by means of TGA revealed a residue corresponding to NiPS3. [ABSTRACT FROM AUTHOR]

Published
2013
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494. Genome Mapping in Citrullus Lanatus Populations Segregating for Fusarium Wilt Resistance

Author

Leigh K. Hawkins, Fenny Dane, Tom Kubisiak, Bill Rhodes, and Bob Jarrett

Subjects
food and beverages, Horticulture
Abstract

A linkage map was constructed of the watermelon genome using F2 and F2:3 populations segregating for resistance to race 1 and 2 of Fusarium oxysporum f. sp. niveum (FON 1 and 2). Sixty-four percent of the RAPD primers used in the parents and F1 detected polymorphism. In the F2, 143 polymorphic bands were scored, 60% of which exhibited the expected 3:1 segregation ratio. A 113 cM linkage map was constructed using Mapmaker version 3 and LOD of 4. DNA pools of Fusarium wilt resistant or susceptible F2:3 lines were created and bulked segregant analysis was used to detect molecular markers linked to FON 1 or FON 2 resistance. Four individuals per line were used to confirm linkages and construct an F2:3 linkage map. One large linkage group was detected in both generations. A large proportion of the RAPD and SSR markers were unlinked and many showed segregation distortion. Single-factor ANOVA for each pairwise combination of marker locus and resistance or morphological trait was conducted. RAPD markers with putative linkages to FON 1 and FON 2 and several morphological traits were detected.

Published
2000

495. Flooding to Restore Connectivity of Regulated, Large-River Wetlands

Author

Galat, David L., primary, Fredrickson, Leigh H., additional, Humburg, Dale D., additional, Bataille, Karen J., additional, Bodie, J. Russell, additional, Dohrenwend, John, additional, Gelwicks, Greg T., additional, Havel, John E., additional, Helmers, Douglas L., additional, Hooker, John B., additional, Jones, John R., additional, Knowlton, Matthew F., additional, Kubisiak, John, additional, Mazourek, Joyce, additional, McColpin, Amanda C., additional, Renken, Rochelle B., additional, and Semlitsch, Raymond D., additional

Published
1998
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