Sample records for QUIMICA NUCLEAR (nuclear chemistry)
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1

Variability in 137Cs inventories and potential climatic and lithological controls in the central Ebro valley, Spain

Navas, Ana; Walling, D.E.; Quine, T.; Machín, Javier; Soto, Jesús; Domenech, Sergio; López-Vicente, Manuel

The extent of soil erosion in some Spanish semiarid regions has caused great concern regarding the sustainability of soil resources. Accelerated soil erosion, particularly in some Mediterranean areas, is likely to be one of the main environmental problems associated with climate change. Fallout 137C...

DRIVER (Spanish)

2

Variability in 137Cs inventories and potential climatic and lithological controls in the central Ebro valley, Spain

Navas Izquierdo, Ana; Walling, D.E.; Quine, T.; Machín Gayarre, Javier; Soto, Jesús; Domenech, S.; López-Vicente, Manuel
2007-11-01

Digital.CSIC (Spain)

3

Using a Jacobi–Davidson “Nuclear Orbital” Method for Small Doped 3He Clusters

Lara Castells, M. Pilar de; Mitrushchenkov, A. O.; Delgado Barrio, Gerardo; Villarreal, Pablo
2009-02-27

Digital.CSIC (Spain)

5

The Far‐Infrared Spectrum of Arp 220

Cernicharo, José; Fischer, Jacqueline; Smith, Howard A.; González‐Alfonso, Eduardo
2004-06-18

Digital.CSIC (Spain)

6

The Activity of Yeast Hog1 MAPK Is Required during Endoplasmic Reticulum Stress Induced by Tunicamycin Exposure

Torres Quiroz, Francisco; García Marqués, Sara; Coria, Roberto; Rández Gil, Francisca; Prieto Alamán, José Antonio
2010-04-29

Digital.CSIC (Spain)

7

TNFalpha-Polymorphismus bei Patienten mit Sepsis und Schilddrüsenkarzinomen

Rossbach, Christiane

Das Zytokin Tumornekrosefaktor a (TNFa) hat einen entscheidenden Anteil an der Entwicklung schwerer Komplikationen, wie septischer Schock und Multiorganversagen nach Entwicklung einer Sepsis. Eine Assoziation des TNF2-Allels mit einem erhöhten TNF a Spiegel und einer höheren Mortalitätsrate wurde i...

DRIVER (Spanish)

8

Solid-state 27Al and 29Si NMR characterization of hydrates formed in calcium aluminate–silica fume mixtures

Pena, P.; Rivas-Mercury, J. M.; Aza, A. H. de; Turrillas, Xavier; Sobrados, I.; Sanz, J.
2008-08-01

Digital.CSIC (Spain)

9

Soil health—a new challenge for microbiologists and chemists

Arias, M. Enriqueta; González-Pérez, José A.; González-Vila, Francisco J.; Ball, Andrew S.
2005-03-01

Digital.CSIC (Spain)

10

Selective lignin and polysaccharide removal in natural fungal decay of wood as evidenced by in situ structural analysis

Martínez Ferrer, Ángel Tomás; Rencoret, Jorge; Nieto, Lidia; Jiménez-Barbero, Jesús; Gutiérrez Suárez, Ana; Río Andrade, José Carlos del
2011-01-01

Digital.CSIC (Spain)

11

Quantum solvent states and rovibrational spectra of small doped 3He clusters through the full-configuration-interaction nuclear orbital approach: The „ (3He)N–Cl2„(X) case (N<4)

Lara Castells, María Pilar de; Aguirre, Néstor F.; Villarreal, Pablo; Delgado Barrio, Gerardo; Mitrushchenkov, Alexander O.
2010-05-21

Digital.CSIC (Spain)

12

Quantum solvent states and ro-vibrational spectra of small doped

Lara Castells, Maria Pilar de; Aguirre, Nestor F.; Villarreal, Pablo; Delgado Barrio, Gerardo
2010-01-01

Digital.CSIC (Spain)

15

Lignin modification during Eucalyptus globulus kraft pulping followed by totally chlorine free bleaching: a two dimensional nuclear magnetic resonance, Fourier transform infrared, and pyrolysis-gas chromatography/mass spectrometry study

Ibarra, David; Chávez, María Isabel; Rencoret, Jorge; Río Andrade, José Carlos del; Gutiérrez Suárez, Ana; Romero Sánchez, Javier; Camarero, Susana; Martínez Hernández, María Jesús; Jiménez-Barbero, Jesús; Martínez Ferrer, Ángel Tomás
2007-01-01

Digital.CSIC (Spain)

16

Inhibiting the calcineurin-NFAT (nuclear factor of activated T cells) signaling pathway with a regulator of calcineurin-derived peptide without affecting general calcineurin phosphatase activity

Mulero, M. Carmen; Aubareda, Anna; Orzáez, Mar; Messeguer, Joaquim; Serrano-Candelas, Eva; Martínez-Hoyer, Sergio; Messeguer Peypoch, Àngel; Pérez-Payá, Enrique; Pérez-Riba, Mercè
2009-04-03

Digital.CSIC (Spain)

17

Identification of Oligosaccharides Formed during Stachyose Hydrolysis by Pectinex Ultra SP-L

Montilla, Antonia; Corzo, Nieves; Olano, Agustin; Jimeno, M. Luisa
2009-01-01

Digital.CSIC (Spain)

18

Icogenin, a new cytotoxic steroidal saponin isolated from Dracaena draco

Hernández, Juan C.; León, Francisco; Quintana, José; Estévez, Francisco; Bermejo, Jaime
2004-06-26

Digital.CSIC (Spain)

19

Homo-monoterpenic compounds as chemical markers for Cydonia oblonga Miller

Sousa, Carla; Silva, Branca M.; Andrade, Paula B.; Valentão, Patricia; Silva, Artur; Ferreres, Federico; Seabra, Rosa M.; Ferreira, Margarida A.
2007-01-01

Digital.CSIC (Spain)

20

Historia de la obra científica de Eduardo Cruz-Coke Lassabe/ The scientific work of Eduardo Cruz-Coke Lassabe, MD

Cruz-Coke M, Ricardo
2001-04-01

Resumen en inglés Background: Eduardo Cruz Coke M.D., (1899-1974) was one of the precursors and pioneers of biomedical research in Chile, as professor of Physiological and Pathological Chemistry at the University of Chile, from 1925 to 1962. He was a disciple of Dr. Juan Noe and studied in Europe with the Nobel Prize winners Otto Warburg, Jean Perrin, Louis de Broglie and Frederic G. Hopkins. In Chile, he founded a scientific academy with disciples that later obtained the National Sciences (mas) Award, such as Hector Croxatto, Jorge Mardones, Hermann Niemeyer, Luis Vargas and Jorge Allende. He carried out pioneering research in metabolism, nutrition, endocrinology, oncology and nephrogenic hypertension. He published more than 50 scientific papers in French, English and Spanish. He founded scientific societies, edited journals and created the National Commission of Nuclear Energy. His books were "The ionic acidity in the clinic", "Preventive and directed medicine", "The adrenal cortex". He was Ministry of Health between 1937 and 1938 and passed important socio-medical bills. He obtained the distinguished international awards in Europe, the U.S.A. and Latin America. The Biomedical Sciences Institute of the University of Chile carries his name. (Rev Méd Chile 2001; 129: 447-455)

Scientific Electronic Library Online (Spanish)

21

From Diphosphane to Diphosphodiide Gold(III) Derivatives of 1,2-Diphosphinobenzene

Blanco, M. Carmen; Fernández, Eduardo J.; Olmos, M. Elena; Pérez, Javier; Laguna, Antonio
2006-02-10

Digital.CSIC (Spain)

22

Expresión inmunohistoquímica de metaloproteasas (MMP-1, 2 y 11) e inhibidor de metaloproteasas de tejido-1 (TIMP-1), y expresión de p53 en linfomas angiocéntricos de células T/NK tipo nasal/ Metalloproteinase (MMP-1, 2 and 11), tissue inhibitor of metalloproteinase-1 (TIMP-1), and p53 expression in nasal-type angiocentric T/NK-cell lymphoma. An immunohistochemical study

Meneses-García, Abelardo; Herrera, Jorge; Mohar, Alejandro; García-Cuellar, Claudia; Súchil-Bernal, Laura
2005-08-01

Resumen en español Se analizan 20 casos de linfomas extraganglionares de células T/NK de tipo nasal, estudiados en el Instituto Nacional de Cancerología, México, D. F., para su expresión inmunohistoquímica de las células neoplásicas, expresión nuclear de la proteína supresora de tumor p53, así como de enzimas que participan en invasión, destrucción tisular y metástasis: metaloproteasas. Material y métodos: Se estudió el material quirúrgico de estos casos y se efectuó tinci� (mas) �n con hematoxilina y eosina analizando sus características histopatológicas: tamaño celular y detalle citológico. Se realizó estudio de inmunohistoquímica para corroborar el tipo celular, así como CD3 (células T), CD56 (células NK), expresión nuclear de la proteína supresora de tumor p53, y la expresión de metaloproteasas tipo 1, 2, 11 (MMP-1, 2, 11) y un inhibidor de metaloproteasas 1 (TIMP-1). Se analizaron variables demográficas, como edad del paciente, sexo, localización del tumor primario, etapa clínica, tratamiento en general y seguimiento. Estudio estadístico: Se analizó la prueba exacta de Fisher para correlacionar la expresión entre las metaloproteasas y su diferencial entre las células epiteliales, tumorales, estromales, necrosis y células endoteliales. Resultados: Los 20 casos fueron positivos CD3 citoplásmico, CD56, 19 de ellos positivos a p53, cinco de ellos con positividad nuclear mayor al 50% de las células neoplásicas. Hubo una mayor expresión citoplásmica tumoral de MMP-1; mayor expresión citoplásmica en el epitelio de TIMP1 y MMP-11. Los pacientes con sobreexpresión de p53 tuvieron un curso clínico fatal. Tres de ellos recibieron únicamente radioterapia falleciendo dentro del primer mes del tratamiento. Discusión: Los linfomas angiocéntricos de células T/NK tipo nasal son neoplasias frecuentes en los países de Asia, Latinoamérica, incluyendo a México. Frecuentemente esta patología se asocia a VEB con expresión fenotípica de células T/NK, cuyas características histológicas son: atipia celular linfoide, angioinvasión y necrosis, reflejado en los pacientes con destrucción progresiva de los tejidos blandos del macizo facial y curso clínico fatal. Resumen en inglés Twenty cases of extraganglionar Nasal type T/NK cell lymphomas were analyzed at the National Cancer Institute of Mexico. We studied immunophenotype of neoplastic cells, nuclear p53 expression, and enzymes as matrix metalloproteinases participating in invasion, tissular destruction and metastases. Material and Methods: Paraffin blocks from all cases were retrieved and analyzed by hematoxilin and eosin. Histopathological features included cellular size and cytologic charact (mas) eristics. We performed immunohisto chemistry to determine CD3, CD56, p53 cellular type and expression of (MMPs-1, 2,11) matrix metalloproteinases and one tissue inhibitor of TIMP 1 metalloproteinase. Demographic variables included, age, sex, primary location, clinical stage, treatment and follow up. Statistical analysis: The association of different matrix metalloproteinases in epithelial and tumoral cells, stroma, necrosis and endothelial cells were found to be significant using Fisher s exact test. Results: All studied cases were positive to cytoplasmic CD3, CD56 (NK cells), 19 of them were positive to p53, five of them with nuclear overexpression of p53 in more than 50% of neoplastic cells. There was significant expression of MMP-1 in tumoral cells; the epithelium displayed significant expression of TIMP 1 and MMP-11. Patients with p53 overexpression displayed a poorer prognosis. Three of them had undergone radiotherapy and died within the first month of treatment. Discussion: This type of lymphoma is a common neoplasm in Asia, Latin America and Mexico. It is worth noting it has has been linked to Epstein Barr virus with T/NK-cell phenotype, which often displays cellular atypia, an angiocentric growth pattern and necrosis. It is clinically expressed by progressive destruction of midline facial soft tissue and has a poor prognosis.

Scientific Electronic Library Online (Spanish)

23

Evaluating the interactions of vertebrate receptors with persistent pollutants and antifouling pesticides using recombinant yeast assays

Noguerol Risco, Tania-Noelia; Boronat Llop, Susanna; Casado Belloso, Marta; Raldúa, Demetrio; Barceló, Damià

8 pages, 2 tables, 3 figures. | The development of in vitro methods for screening potentially harmful biological activities of new compounds is an extremely important way to increase not only their intrinsic environmental safety, but also the public perception of the safety standards associated with...

DRIVER (Spanish)

24

Evaluating the interactions of vertebrate receptors with persistent pollutants and antifouling pesticides using recombinant yeast assays

Noguerol Risco, Tania Noelia; Boronat Llop, Susanna; Casado Belloso, Marta; Raldúa, Demetrio; Barceló, Damià; Piña, Benjamín
2006-06-01

Digital.CSIC (Spain)

25

Enzymatic synthesis and identification of two trisaccharides produced from lactulose by transgalactosylation

Martínez-Villaluenga, Cristina; Cardelle-Cobas, Alejandra; Olano, Agustín; Corzo, Nieves; Villamiel, Mar; Jimeno, M. Luisa
2008-01-01

Digital.CSIC (Spain)

26

Environmentally Sensitive Paramagnetic and Diamagnetic Contrast Agents for Nuclear Magnetic Resonance Imaging and Spectroscopy

Pacheco, Jesús; Calle, Daniel; Lizarbe, Blanca; Negri, Viviana; Ubide, Carmen; Fayos, Rosa; López Larrubia, Pilar; Ballesteros García, Paloma; Cerdán García-Esteller, Sebastián
2011-01-01

Digital.CSIC (Spain)

27

Effects of different drying processes on the concentrations of metals and metalloids in plant materials.

Anawar, Hossain M.; Canha, N.; Freitas, M. C.; Santa Regina, I.; García-Sánchez, A.
2011-01-01

Digital.CSIC (Spain)

30

Characterization of Galactosyl Derivatives Obtained by Transgalactosylation of Lactose and Different Polyols Using Immobilized beta-Galactosidase from Aspergillus oryzae

Irazoqui, Gabriela; Giacomini, Cecilia; Batista-Viera, Francisco; Brena, Beatriz M.; Cardelle-Cobas, Alejandra; Corzo, Nieves; Jimeno, M. Luisa
2009-01-01

Digital.CSIC (Spain)

31

Biosynthesis of prion protein nucleocytoplasmic isoforms by alternative initiation of translation

Juanes, Maria E.; Elvira, Gema; García-Grande, Aránzazu; Calero, Miguel; Gasset, María
2008-01-01

Digital.CSIC (Spain)

33

A theoretical and experimental study of the interaction of C6F6 with electron donors

Alkorta, Ibon; Rozas, Isabel; Jimeno, M. Luisa; Elguero, José
2001-01-01

Digital.CSIC (Spain)

35

A full-configuration interaction "nuclear orbital'' method to study doped 3He(N) clusters (N<=4)

Lara Castells, M. Pilar de; Delgado Barrio, Gerardo; Villarreal, Pablo; Mitrushchenkov, A. O.
2006-12-08

Digital.CSIC (Spain)

36

1H, 13C NMR, X-ray and conformational studies of new 1-alkyl-3-benzoyl-pyrazole and 1-alkyl-3-benzoyl-pyrazoline derivatives

López-Cara, Luisa C.; Carrión, M. Dora; Camacho, M. Encarnación; Gallo, Miguel A.; Espinosa, Antonio; Choquesillo-Lazarte, Duane; González-Pérez, J. M.; Entrena Guadix, Antonio
2008-06-03

Digital.CSIC (Spain)