Sample records for GRUPOS DE SIMETRIA (symmetry groups)
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1

Validación de un método analítico y determinación de residuos de ivermectina en tejidos de ovino/ Validation of an Analytical Method and Determination of Invermectin Residues in Sheep Tissues

Núñez, María José; Palma, Cristina; Araneda, Marcia; Cabezas, Ignacio; Pérez, Rubén
2007-12-01

Resumen en español Se realizó un estudio con el objetivo de validar un método analítico sensible y confiable para la detección de residuos de ivermectina (IVM) en muestras de hígado, riñón, músculo y grasa, junto con determinar las concentraciones del fármaco en tejidos de ovinos tratados por vía subcutánea. Muestras de tejidos libres de fármaco fueron sobrecargadas con concentraciones de IVM entre 1 y 50 ng/g (hígado, riñón y músculo); 5 a 200 ng/g (grasa), luego fueron som (mas) etidas a extracción en fase sólida y analizadas por cromatografía líquida de alta eficiencia (HPLC). Para el estudio de residuos se utilizaron 12 ovinos Suffolk Down de 27,8 ± 1,3 kg de peso, los que fueron tratados con 0,2 mg/kg de IVM vía subcutánea, luego se sacrificaron grupos de 3 animales a los 1,5; 7; 14 y 21 días post tratamiento. La ausencia de interferencias y una adecuada simetría de los cromatogramas indica una buena especificidad del método analítico empleado para la detección de IVM en los tejidos analizados. Los porcentajes de recuperación fluctuaron entre 70 a 93,2%. El límite de cuantificación se estableció en hígado: 0,48 ng/g; riñón: 1,02 ng/g; músculo: 0,18 ng/g y grasa: 2,65 ng/g. La validación de la metodología analítica demostró adecuados valores de sensibilidad, precisión y exactitud que permiten obtener resultados confiables para la detección y cuantificación de residuos de IVM en tejidos de ovinos. En los ovinos tratados con IVM, las mayores concentraciones de residuos fueron observadas a los 1,5 días post tratamiento en hígado (281,7 ± 116,95 ng/g) y grasa (248,67 ± 90,85 ng/g), los que persistieron hasta el día 21 con concentraciones de 0,63 ± 0,2 ng/g y 4,07 ± 2,25 ng/g, respectivamente. Las menores concentraciones de residuos de IVM fueron observadas en las muestras de músculo. Resumen en inglés A study was undertaken in order to validate a precise and reliable analytical method for the detection of ivermectin’s (IVM) tissue residues in sheep, and to know the patterns of the drug concentrations depletion in edible tissues such as liver, kidney, muscle and fat, from treated animals by subcutaneous route. Drug free tissue samples were fortified with increasing concentrations of IVM (1 to 50 ng IVM/g for liver, kidney and muscle; and 5 to 200 ng IVM/g for adipose t (mas) issue) and then were subjected to solid phase extraction and analyzed by high performance liquid chromatography (HPLC). Twelve sheep weighing 27.8 ± 1.3 kg, were treated with 0.2 mg/kg of IVM by subcutaneous route, and then were slaughtered in groups of three animals at 1.5, 7.0, 14.0, and 21.0 days post treatment. The specificity of the method was demonstrated by the absence of interferences and the adequate symmetry of chromatograms. The percentage of recovery ranged from 70 to 93.2% for all tissues analyzed and different drug concentrations. The limit of quantification of the method was established in 0.48 ng/g for liver; 1.02 ng/g for kidney; 0.18 ng/g for muscle and 2.65 ng/g for adipose tissue. The validated analytical methodology showed satisfactory results of sensitivity, precision and accuracy that allow it use for the detection and quantification of tissue residues of IVM in sheep. From the tissues samples of sheep treated with IVM, the higher concentrations were found in liver (281.7 ± 116.95 ng/g) and adipose tissue (248.67 ± 90.85 ng/g) at 1.5 days, and the drug concentrations in both tissues were maintained for a period of 21 days post treatment with 0.63 ± 0.2 ng/g and 4.07 ± 2.25 ng/g respectively. The lowest concentrations of IVM in tissues were observed in muscle samples.

Scientific Electronic Library Online (Spanish)

2

Frecuencia y variabilidad de la morfología dental en niños afro-colombianos de una institución educativa de Puerto Tejada, Cauca, Colombia/ Frequency and variability of the dental morphology in African-Colombian children of a school institution of Puerto Tejada, Cauca, Colombia

Rocha, Lorena; Rivas, Harold; Moreno, Freddy
2007-09-01

Resumen en español Objetivos: Determinar la frecuencia y variabilidad de once rasgos morfológicos dentales coronales (winging, incisivos centrales y laterales en pala, doble pala, cúspide de Carabelli, pliegue acodado, protostílido, patrón cuspídeo, número de cúspides, cúspide 6 y cúspide 7), en dientes permanentes (UI1/UI2/UM1/LM1), para comprender la influencia étnica y la distancia biológica de una muestra obtenida por conveniencia Materiales y métodos: Se trata de un estudio (mas) descriptivo transversal de enfoque cuantitativo para observar la frecuencia y variabilidad de once rasgos morfológicos dentales coronales mediante la metodología ASUDAS en 84 modelos de estudio obtenidos de niños afro-colombianos de ambos sexos (42 mujeres y 42 hombres) habitantes del municipio de Puerto Tejada, Cauca (Colombia). Resultados: Se observaron frecuencias altas de cúspide de Carabelli de mediano tamaño (grado 5), patrón cuspídeo +5 y +6, y alta frecuencia de cúspide 7, lo cual sugiere notable influencia del complejo dental occidental (caucasoides y negroides). Se apreciaron altas frecuencias del protostílido (punto P o foramen secum) y del pliegue acodado lo cual sugiere influencia mongoloide a partir de la miscegenación con grupos indígenas regionales. Los rasgos morfológicos winging, incisivos centrales y laterales en pala, doble pala, número de cúspides y cúspide 6 presentaron frecuencias bajas. Se demostró la simetría bilateral y ausencia de dimorfismo sexual (a excepción de winging, incisivos en pala y protostílido). Estos resultados son importantes dentro de los contextos odontológico y forense durante los procesos de identificación, y en el contexto antropológico para estimar la odontobiografía de una población específica. Resumen en inglés Objectives: To assess the frequency and variability of eleven non-metric dental crown traits (winging, shovel-shape, double shovel shape, Carabelli trait, deflecting wrinkle, protostylid, groove pattern, cusp number, sixth and seventh cusps) in permanent (UI1/UI2/UM1/LM1) teeth, in order to understanding the ethnic influence and the biological distance of the sample in study. Materials and methods: In this descriptive and quantitative study, frequency and variability of t (mas) welve non-metric dental crown traits were analyzed, through the ASUDAS System, in dental casts from 84 African-Colombian children of both sexes (42 females and 42 males), in mixed-dentition from Puerto Tejada, Cauca (Colombia) inhabitants. Results: High frequencies of Carabelli trait in grade 5; and +5 y +6 groove patterns, suggests Western dental complex influence. High frequencies of protostylid (P point or foramen secum) and deflecting wrinkle that suggest Mongoloid influence from the miscegenation with regional indigenous groups were observed. Winging, shovel-shape, double shovel, cusp number and cusp 6 showed low frequencies. Bilateral symmetry and absence of sexual dimorphism were demonstrated (except winging, shovel-shape and protostylid).

Scientific Electronic Library Online (Spanish)

3

Trastorno obsesivo compulsivo en niños y adolescentes: una actualización. Primera parte/ Obsessive-compulsive disorder in children and adolescents: An update. Part one

Vargas Álvarez, Luis Alberto; Palacios Cruz, Lino; González Thompson, Guillermo; de la Peña Olvera, Francisco
2008-06-01

Resumen en español El trastorno obsesivo compulsivo se ha reportado en los últimos tiempos con mayor prevalencia en la edad pediátrica que lo reportado anteriormente, esto se debe probablemente a una mejor caracterización de su presentación en niños y adolescentes y al desarrollo de mejores métodos de evaluación. Los criterios diagnósticos son los mismos para niños, adolescentes y adultos. Debido a su bajo nivel de conciencia, los niños pueden no considerar sus obsesiones como exa (mas) geradas o ilógicas por lo que el DSM-IV no incluye este criterio en este grupo de edad. Aunque hay muchas similitudes sintomáticas a distintas edades, también hay importantes diferencias que convierten este padecimiento en un reto diagnóstico y de tratamiento en el TOC de inicio temprano. La prevalencia del TOC pediátrico se ubica en un rango de 2% a 4%, con una predominancia de los hombres en relación a las mujeres. En México aún no se cuenta con estudios que confirmen estas cifras en esta forma de presentación pediátrica. Frecuentemente los niños, más que los adolescentes y los adultos, pueden presentar conductas compulsivas, sin un componente obsesivo, lo cual probablemente se asocie al desarrollo cognitivo. Los síntomas obsesivos y compulsivos presentan diferencias en el contenido de acuerdo al grupo etario. Las obsesiones más comunes en el TOC de inicio temprano son las relacionadas a la contaminación y gérmenes con compulsiones relacionadas a lavado y revisión. Otras obsesiones frecuentes son el temor a dañar a otros. Se ha identificado que los adolescentes presentan con mayor frecuencia obsesiones sexuales o religiosas y, junto con los niños, más obsesiones agresivas y compulsiones de atesoramiento que los adultos. Por sus características el TOC de inicio en la infancia ha dado pauta a diversas clasificaciones, como son la presencia comórbida de tics y la agregación familiar con más de un integrante con el padecimiento. Algunos estudios han reportado diferencias entre los niños que padecen TOC con tics versus aquellos sin tics, como es la mayor frecuencia de rituales de repetición sin contexto de evitación al daño y menor frecuencia de síntomas relacionados con contaminación/lavado. Otra forma de clasificación que en la actualidad ha permitido la subdivisión del TOC en subtipos se ha apoyado en el análisis factorial, donde se han identificado subtipos en adultos y recientemente en niños y adolescentes con consistencia entre autores. Los subtipos propuestos son: lavado/contaminación, simetría/ orden, obsesiones sexuales/religiosas y atesoramiento. Respecto de las hipótesis etiológicas, las evidencias de agregación familiar y los estudios en gemelos han esclarecido el importante papel genético de este trastorno. Otras teorías biológicas no genéticas para el TOC que se han considerado son las lesiones cerebrales focales y secuelas inmunes generadas por infecciones con el estreptrococo beta-hemolítico del grupo A que podrían explicar alguna proporción de los individuos con TOC. Diversas líneas de investigación han evidenciado que la neuropatología del TOC se encuentra en el circuito cortico-estriado-tálamo-cortical, donde están implicadas la disfunción de la dopamina, la serotonina, el glutamato y el GABA. Particularmente existe evidencia sobre la serotonina, dada la amplia utilización y probada efectividad de los inhibidores selectivos de la recaptura de serotonina (ISRS) en el tratamiento del TOC. Los estudios electrofisiológicos y con potenciales relacionados con eventos (PREs) han sido limitados en adultos y no hay reportes en población pediátrica. Por medio de estudios de neuroimagen como la tomografía axial computarizada (TAC), se ha reportado: disminución de volumen bilateral en el núcleo caudado y cambios estructurales en los ganglios basales ante sintomatología obsesivo-compulsiva durante la adolescencia. La tomografía por emisión de positrones (TEP) en adultos ha sugerido un incremento en el metabolismo del giro orbital y la cabeza del núcleo caudado, mientras que en sujetos con una edad de aparición en la adolescencia se ha reportado un incremento en el metabolismo en regiones orbito-frontal izquierda, sensorio-motor derecha, giro del cíngulo anterior y prefrontal bilateral. Resumen en inglés The obsessive-compulsive disorder (OCD) is being reported now with increased prevalence in pediatric population than in the past, associated with the development of more specific assessment methods. This evolution has opened the possibility to characterize OCD presentation in children and adolescents. OCD in childhood is a chronic and distressing disorder that can lead to severe impairments in social, academic and family functioning. Currently, pediatric OCD criteria are (mas) the same than in adults. The presence of obsessive and compulsive symptoms are needed to establish the diagnosis but, because of the lower levels of cognitive awareness in children, they are less likely to consider their OCD symptoms as excessive or unreasonable. The DSM-IV does not require that symptoms be recognized as senseless or unrealistic for the diagnosis to be made in children. Overall, there are several clinical differences in the younger age groups that make this disorder a diagnostic and treatment challenge for clinicians. Epidemiologic studies have been conducted in adolescent population. These studies report a prevalence in the range of 2% to 4% with a slight predominance in males than females. In Mexico, there are no studies in this population to confirm these rates. Frequently children, more than adolescents and adults, may present compulsive behavior without obsessions, which are related to immature cognitive development. The obsessive-compulsive symptoms have differences between age groups (children, adolescents and adults). Children may be somewhat more likely to engage in compulsive reassurance- seeking and involve their parents in their rituals. The most common obsessions in childhood are related to contamination and germs, followed by fears to harm others. The most common compulsions are washing, repeating and checking. Adolescents present more frequently religious and sexual contents in their obsessions, and similar about aggression as children. Related to compulsions, children and adolescents develop hoarding more frequent than adults. Several studies suggest a mean age of childhood OCD from 6 to 11 years of age, but there are two peaks of more frequent cases presentation: in early childhood and early adolescence. Regarding the OCD early-onset, course studies have reported chronicity in most subjects, 50% of them meeting full OCD criteria seven years later. Meta-analytic studies about predictors and persistence of pediatric OCD diagnoses show persistence in 41% of the sample with full OCD and 60% full or sub-threshold OCD. Early beginning of OCD increase duration of illness and is a predicted of major persistence. Comorbid psychiatric illnesses and poor initial treatment response were poor prognostic factors. Regarding symptoms during illness course, the pattern and type frequently shift over time, although the number of symptoms typically remains constant. Pediatric OCD has evoked distinct classifications related to the familiar presentation form and comorbidity, especially with tics disorders. Studies have reported that children with tics disorders show several differences in their reported symptom types when compared with the group with no history of tics, for example, they are more likely to endorse repetition of routine behaviors unrelated to harm avoidance. Contamination and washing rituals are more common in the OCD child without tics. Findings are consistent with several studies in clinical assessed adult samples which have shown that the tic-related OCD can be distinguished as a subtype of OCD. These adults are more likely to report obsessions involving a need of symmetry and compulsions involving touching, starting and counting. There are also evidence that the tic-related OCD may be lees likely to monotherapy with a selective serotonin reuptake inhibitor. Another way to understand this disorder is subtyping symptoms using factorial analysis. Several authors have proposed at least four subtypes or factors (washers, hoarders, checkers and sexual/religions symptoms). Some studies with children and adolescents have shown limitations to conduct a factorial analysis, although some others with better methods have showed similarity between OCD symptoms dimensions structure in children and adults. The etiology of OCD is not clear, but the evidence in familiarity, segregation analysis and twins studies have established the role of genetics in the cause factors and is considered as a complex genetic disorder. Twin studies find a high concordance rate for monozygotic twins (53-87%) and dizygotic twins (22-47%). The prevalence of OCD is higher among first degree relatives of affected subjects, early-onset OCD has a higher rate of first degree relatives with TOC. Association studies with candidate genes have been done in early-onset OCD but significant results have not been replicated.

Scientific Electronic Library Online (Spanish)

4

¿Violencia episódica o terrorismo íntimo? Una propuesta exploratoria para clasificar la violencia contra la mujer en las relaciones de pareja/ Episodic violence or intimate terrorism? An exploratory proposal to classify violence against women in the context of intimate couple relationships

Ramos Lira, Luciana; Saltijeral Méndez, María Teresa
2008-12-01

Resumen en español El presente trabajo es un ejercicio teórico y estadístico para construir una tipología de la violencia masculina hacia la mujer. Parte de una propuesta que plantea que en las relaciones heterosexuales ocurren dos tipos de violencia física. Uno de éstos puede denominarse violencia episódica, donde uno o ambos integrantes de la pareja realizan algún acto violento sin que esté presente el deseo de controlar o dominar al otro integrante. En el otro, definido como terr (mas) orismo íntimo, el hombre actúa con una clara intención de ejercer un control y dominio tanto violentos como no violentos sobre las conductas, pensamientos y emociones de la mujer. Los grupos construidos se analizan según algunas variables que previamente se ha considerado que se pueden asociar con esta forma de violencia, como las características demográficas, las características relacionadas con la participación económica y la distribución de las labores domésticas en las familias de las mujeres y las características específicas de la relación violenta, en particular el uso de alcohol por parte de la pareja. Método Se analizó una base de datos derivada de un estudio transversal y ex post facto realizado con una muestra de 345 mujeres que asistieron a atención médica de primera vez o subsecuente a una institución del primer nivel en el Distrito Federal. Para construir la tipología, se eligió a las mujeres que habían sufrido al menos una manifestación de violencia física por su pareja en los últimos 12 meses, y se realizó un análisis de escalamiento multidimensional a partir de cinco dimensiones de la violencia emocional. Con base en la clasificación de grupos, se realizaron análisis de varianza y de chi cuadrada con variables demográficas, y otras que la bibliografía ha reportado como relevantes. Resultados Un 30% de las mujeres había sufrido algún episodio de violencia física en el último año. Éstos se clasificaron de la siguiente manera: 1. con violencia física episódica, que incluye a aquellas que no reportaron amenazas, ni intimidación y devaluación (12.5% de la población total); 2. violencia física intimidatoria, que incluye mujeres que reportaron amenazas e intimidación y poca o ninguna devaluación (12.5% de la población total); y 3. terrorismo íntimo, referido a mujeres que sufrieron amenazas e intimidaciones muy frecuentes junto con una devaluación que va de > a > (5% de la población total). Este último grupo es el de más alto riesgo; las mujeres que lo integraron fueron de mayor edad que las de los otros grupos, al igual que sus parejas. Reportaron tener más hijos y más años de vivir con el maltratador, en promedio 18. Tres de cada cinco mujeres tenía un trabajo remunerado, en su mayoría de manera informal, y llevaban la responsabilidad económica del hogar, así como la carga de las actividades domésticas. Sus parejas tenían un consumo de alcohol problemático; de hecho, uno de cada tres se ponía agresivo al ingerirlo. Conclusiones No encontramos relaciones físicamente violentas libres de violencia emocional, ya que, aun cuando la violencia episódica ocurrió sin manifestaciones de amenazas, intimidación y devaluación, las mujeres sí reportaron comportamientos hostiles y expectativas abusivas de parte de sus parejas. Los resultados obtenidos en torno a las variables sociodemográficas, las relacionadas con la participación económica y con las actividades domésticas de las mujeres y sus familiares, y el consumo de alcohol, pueden utilizarse para elaborar un instrumento breve que permita la detección de mujeres en situación de alto riesgo de violencia de pareja. Además, permiten reflexionar en la necesidad de plantear políticas públicas estructurales para enfrentar este problema, como la creación de empleos dignos y bien remunerados para las mujeres. Destaca igualmente la importancia de contar con programas que aborden el consumo de alcohol y la violencia en los hombres, considerando ambos aspectos como ejes de la construcción de la masculinidad tradicional. Resumen en inglés Introduction The concern of this paper comes from a reflection on the phenomenon of violence against women in the context of intimate couple relationships. Even though studies dealing with the issue tend to focus on the presence of physical violence, it should not be forgotten that in the same relationships several types of emotional and sometimes sexual violence may co-exist. Violent men intentionally aim to create a threatening climate against women. To do so, they reso (mas) rt to devaluations, insults, threats, maltreatment, shouting, contempt, intolerance, humiliations, jealousy and accusations. Nevertheless, women are often unaware of many of them given the social tolerance towards overall abuse and the lack of institutional alternatives. There are, however, some difficulties to operationalize these behaviours. It is particularly difficult to measure the characteristic pattern followed by these relationships as this may involve very subtle forms of violence. Likewise, results obtained in the physical and psychological dimensions are usually kept as separate areas or they are presented at best in a mixed form to show the prevalences from the different surveys carried out. This article is a theoretical and statistical exercise aimed at constructing a typology of male violence against women. Its starting point is a proposal posing that in heterosexual relationships two types of violence are present. The first one may be called episodic violence, where one or both members of the couple carry out some violent act without the desire to control or dominate the other partner. In the other one, defined as intimate terrorism, the man acts out with the clear purpose of exerting both a violent and non-violent control and dominion over the woman's actions, thoughts, and emotions. Although it is certainly arguable, it might be interesting to analyze this classification for it is risky to suppose that there are couple relationships where a symmetry in the use of violence exists both on the part of men and women -that is, that women are as violent as men. It is risky because it distorts violence's gender nature by presupposing that the same behaviour may be exerted with the same physical and symbolic strength and that it will have similar consequences. However, we think it is worth taking it into account as a starting point for this analysis. To do so, a database derived from a study conducted among a sample of women attending general medical consultation was used. The main analysis axis was the indicator of having experienced a physically violent behaviour on the part of the partner during the last year. This was related to five emotional violence dimensions which represent different modalities as to their intentionality and impact. The groups thus formed were analyzed considering some variables which were previously regarded as associated to this form of violence, including demographic features, and some other features related to household income participation and the distribution of household keeping chores in the women's families. Specific features regarding the violent relationship, such as the motives behind the physical violence episodes and the role played by alcohol abuse on the part of the male partner in these episodes, were also considered. Method A database derived from a transversal ex post facto study conducted with a 345-women sample attending first-time or subsequent medical attention in a first level institution was analyzed. A structured questionnaire made up of different areas was applied. The following areas were included in this study: 1. Socio-demographic variables from each woman, her male partner and her family. 2. A violence severity scale containing 22 different types of physically violent behaviours from men against women, and 36 emotional violence types. A previous analysis of the latter showed five conceptually congruous dimensions: Devaluation, Threatening behaviours, Intimidation, Hostility, and Abusive expectations. 3. Features of both the relationship and the violent episodes. 4. Alcohol abuse on the part of the partner. To construct the typology, women who had experienced at least one physical violence attack by their partners during the last twelve months were classified, regardless of the frequency and severity of such behaviour. With this sub-sample, a multidimensional escalation analysis was performed with the five emotional violence dimensions reported and these were considered as >. Decisions were then taken as to the configuration obtained and the women were classified in three groups considering both the presence and severity of the physical violence experienced and the frequency of the different forms of emotional violence. Based on these groups classification, variance and chi square analysis were carried out with the variables selected to observe whether these effectively differentiated the women from each group. Results The resulting emotional violence dimensions allowed us to obtain a typology of the sub-sample of women who had experienced physical violence (30% of the total). With this, three groups were formed: 1. episodic physical violence, including women who did not report any threats nor intimidation or devaluation (12.5%); 2. intimidating physical violence, including women who reported threats and intimidation and some or no devaluation (12.5%), and 3. intimate terrorism, which refers to women who suffered very frequent threats and intimidations together with occasional to frequent devaluations (5%). The latter is the highest risk group. Women belonging to this group were older (35 years) than those from the other two groups and so were their partners (40 years). They reported having more children and having lived longer with the abusing partner. Three out of each five had a paid job, mainly informal, and took charge of the money income responsibility of their households. Male partners were the main income providers only in 40% of the instances. Role genders in these families were very traditional as the male partners seldom helped with household keeping cores. Male partners had alcohol abuse-related problems and, in fact, one out of each three got aggressive when he had had any alcohol. The main reasons behind physical violence were male drunkenness, jealousy, and women protecting their offspring. At the other end are the women we classified in the episodic violence group. These were the youngest in the study even when compared to non-abused and intimidating violence victims. These women and their couple's household income participation, and the family members' participation in household keeping cores were similar to those in the no violence group. Their partners had also used alcohol in a comparable amount to that of the intimidating violence group. The main reasons underlying physical violence were male anger and male jealousy, and drunkenness to a lesser degree. Conclusions A considerable amount of women, nearly one out of each three, had experienced some form of physical violence in their couple relationship during the last year, and one out of each five had suffered violence in an abusive context of threats, intimidation and devaluation. Given this, it is important to focus on any type of physical violence as a part of a primary preventive perspective.

Scientific Electronic Library Online (Spanish)

5

Variational integrators and time-dependent lagrangian systems

León, Manuel de; Martín de Diego, David
2002-01-18

Digital.CSIC (Spain)

6

Ultraviolet behavior of transverse gravity

Álvarez, Enrique; Fernández Faedo, Antón; López-Villarejo, J.J.
2008-07-08

Digital.CSIC (Spain)

7

Tri/Bi-maximal lepton mixing and leptogenesis

Morisi, Stefano; Merlo, L.; Medeiros Varzielas, I. de; Bazzocchi, Federica; Aristizabal Sierra, D.
2010-03-01

Digital.CSIC (Spain)

8

The supersymmetric tensor hierarchy of N=1,d=4 supergravity

Hartong, Jelle; Hübscher, Mechthild; Ortín Miguel, Tomás
2009-06-29

Digital.CSIC (Spain)

9

The Minkowski and conformal superspaces

Fioresi, R.; Lledó, María A.; Varadarajan, Veeravalli S.
2007-11-08

Digital.CSIC (Spain)

10

The Magnus expansion and some of its applications

Blanes, S.; Casas, F.; Oteo, J.A.; Ros, José
2008-11-25

Digital.CSIC (Spain)

11

The Hunt for New Physics at the Large Hadron Collider

Nath, Pran; Valle, José W. F.; Hirsch, Martin; Morisi, Stefano; Heinemeyer, Sven; Santiago, J.
2010-05-05

Digital.CSIC (Spain)

12

The Cd(1-x)Mn(x)In2S4 (0.5 x 1.0) spinel system: an X-ray powder diffraction study

Delgado, G. E.; Betancourt, L.; Sagredo, V.; Morón, M. Carmen
2006-11-20

Digital.CSIC (Spain)

14

Synthesis and characterization of new dicyanate monomers. A way to obtain fully aromatic crosslinked poly(ether ketone)s

Marcos-Fernández, Ángel; Posadas, P.; Rodríguez Díaz, Andrés; González Hernández, Luis
1999-08-15

Digital.CSIC (Spain)

15

Symmetries and solvability of linear differential equations.

Boya, Luis Joaquín; González-Gascón, F.
1980-01-01

Digital.CSIC (Spain)

16

Surface plasmon resonance and magnetism of thiol-capped gold nanoparticles

Guerrero, Estefanía; Muñoz-Márquez, Miguel Ángel; García, M. A.; Crespo, Patricia; Fernández-Pinel, Enrique; Hernando, Antonio; Fernández Camacho, Asunción
2008-04-30

Digital.CSIC (Spain)

17

Structural, spectroscopic, and tunable laser properties of Yb3+-doped NaGd(WO4)2

Cascales, Concepcion; Serrano, Maria Dolores; Esteban-Betegon, Fatima; Zaldo, Carlos; Peters, Rigo; Petermann, Klaus; Huber, Guenter; Ackermann, L; Rytz, Daniel; Dupre, C; Rico, Mauricio; Liu, Junhai; Griebner, Uwe; Petrov, Valentin
2006-11-20

Digital.CSIC (Spain)

20

Reduction of Symplectic Lie Algebroids by a Lie Subalgebroid and a Symmetry Lie Group

Iglesias, David; Marrero, Juan Carlos; Martín de Diego, David; Martínez, Eduardo; Padrón, Edith
2007-03-16

Digital.CSIC (Spain)

22

Positron-neutrino correlation in the O+ -> O+ decay of Ar-32

Adelberger, E. G.; Ortiz, C.; García, A.; Swanson, H. E.; Beck, M.; Tengblad, Olof; García Borge, María José; Martel, Ismael; Bichsel, H.; [ISOLDE Collaboration]
1999-08-16

Digital.CSIC (Spain)

23

Polarization and local disorder effects on the properties of Er3+-doped XBi(YO4)2, X=Li or Na and Y=W or Mo, crystalline tunable laser hosts

Rico, Mauricio; Mendez-Blas, Antonio; Volkov, Vladimir; Monge, Maria Angeles; Cascales, Concepcion; Zaldo, Carlos; Kling, Andreas; Fernandez-Diaz, Maria Teresa
2006-10-01

Digital.CSIC (Spain)

24

Phenomenological consequences of the seesaw mechanism in S-4 based models

Bazzocchi, Federica; Merlo, L.; Morisi, Stefano
2009-09-01

Digital.CSIC (Spain)

26

Natural dark matter in SUSY GUTs with non-universal gaugino masses

King, Stephen F.; Roberts, Jonathan P.; Roy, Durga Prasad
2007-10-31

Digital.CSIC (Spain)

27

Nanomechanical mass sensing and stiffness spectrometry based on two-dimensional vibrations of resonant nanowires

Gil-Santos, Eduardo; Ramos, Daniel; Martinez, Javier; Fernández-Regúlez, Marta; García García, Ricardo; San Paulo, Álvaro; Calleja, Montserrat; Tamayo, Javier
2010-08-08

Digital.CSIC (Spain)

28

Model for fermion masses and lepton mixing in SO(10) x A(4)

Morisi, Stefano; Picariello, Marco; Torrente-Luján, Emilio

8 pages.-- PACS nrs.: 11.30.Hv; 12.10.-g; 12.15.Ff; 14.60.Pq.-- ISI Article Identifier: 000246076700079.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0702034 | The discrete flavor symmetry A(4) explains very well neutrino data at low energy, but it seems difficult to extend it to gran...

DRIVER (Spanish)

29

Model for fermion masses and lepton mixing in SO(10) x A(4)

Morisi, Stefano; Picariello, Marco; Torrente-Luján, Emilio
2007-04-20

Digital.CSIC (Spain)

30

Model discriminating power of µ-->e conversion in nuclei

Cirigliano, Vincenzo; Kitano, Ryuichiro; Okada, Yasuhiro; Tuzón, Paula
2009-07-06

Digital.CSIC (Spain)

33

Measurement and crystal field analysis of energy levels of Ho3+ and Er3+ in KGd(WO4)2 single crystal

Pujol, Maria Cinta; Cascales, Concepcion; Rico, Mauricio; Massons, Jaume; Diaz, Francisco; Porcher, Pierre; Zaldo, Carlos
2001-07-12

Digital.CSIC (Spain)

35

Low base numbers and dysploidy In Annual Helichrysum Mill. (Asteraceae: Gnaphalieae)

Galbany-Casals, Mercè; Susanna de la Serna, Alfonso; Molero Briones, Julián
2009-01-01

Digital.CSIC (Spain)

37

Las especies minerales y su simetría espacial

Briansó, J. L.; Miravitlles, C.
1976-01-01

Digital.CSIC (Spain)

38

Large gauge invariant non-standard neutrino interactions.

Gavela, Mª Belén; Hernández, D.; Ota, T.; Winter, Walter
2009-01-22

Digital.CSIC (Spain)

40

Incommensurate modulated structure of the ferromagnetic shape-memory Ni2MnGa martensite.

Righi, Lara; Albertini, Franca; Calestani, Gianluca; Pareti, Luigi; Paoluzi, Antonio; Ritter, C.; Algarabel, Pedro A.; Morellón, Luis; Ibarra, M. Ricardo
2006-11-01

Digital.CSIC (Spain)

41

Higgs in space!

Taoso, Marco; Jackson, C. B.; Servant, Géraldine; Shaughnessy, Gabe; Tait, Tim M. P.
2010-04-06

Digital.CSIC (Spain)

42

Higgs effective potential in the littlest Higgs model at the one-loop level

Dobado, Antonio; Tabares-Cheluci, Lourdes; Peñaranda, Siannah

12 pages, 6 figures.-- PACS nrs.: 95.35.+d; 11.10.Kk; 11.25.-w.-- ISI Article Identifier: 000246076900042.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0612131 | In this work we compute the contributions to the Higgs effective potential coming from the fermion and gauge boson sectors ...

DRIVER (Spanish)

43

Higgs effective potential in the littlest Higgs model at the one-loop level

Dobado, Antonio; Tabares-Cheluci, Lourdes; Peñaranda, Siannah
2007-04-30

Digital.CSIC (Spain)

44

Growth, spectroscopy, and tunable laser operation of the disordered crystal LiGd(MoO4)2 doped with ytterbium

Rico, Mauricio; Griebner, Uwe; Petrov, Valentin; Ortega, Pilar; Han, Xiumei; Cascales, Concepcion; Zaldo, Carlos
2006-06-01

Digital.CSIC (Spain)

45

Group 11 complexes with the bis(3,5-dimethylpyrazol-1-yl)methane ligand. How secondary bonds can influence the coordination environment of Ag(I): the role of coordinated water in [Ag2(µ-L)2(OH2)2](OTf)2

Calhorda, Maria José; Costa, Paulo J.; Crespo, Olga; Gimeno, M. Concepción; Jones, Peter G.; Laguna, Antonio; Naranjo, Mar; Quintal, Susana; Yu-Jun, Shi; Villacampa, M. Dolores
2006-01-01

Digital.CSIC (Spain)

46

Flavor symmetry and vacuum aligned mass textures

Kaneko, Satoru; Sawanaka, Hideyuki; Shingai, Takaya; Tanimoto, Morimitsu; Yoshioka, Koichi
2007-01-01

Digital.CSIC (Spain)

47

Fermion masses and mixings in a S-4 based model

Bazzocchi, Federica; Merlo, L.; Morisi, Stefano
2009-03-10

Digital.CSIC (Spain)

48

Experimental study of the structural and magnetic properties of -Fe2O3 nanoparticles

Yusuf, S. M.; Teresa, José María de; Mukadam, M. D.; Kohlbrecher, J.; Ibarra, M. Ricardo; Arbiol, J.; Sharma, P.; Kulshreshtha, S. K.
2006-11-01

Digital.CSIC (Spain)

49

Expansions of algebras and superalgebras and some applications

Azcárraga, José A. de; Izquierdo, José Manuel; Picón, M.; Varela, Óscar
2007-06-06

Digital.CSIC (Spain)

50

Exactly solvable models of proton and neutron interacting bosons

Lerma H., Sergio; Errea, Beatriz; Dukelsky, Jorge; Pittel, S.; Van Isacker, P.
2006-08-22

Digital.CSIC (Spain)

51

Exact Solution of the Spin-Isospin Proton-Neutron Pairing Hamiltonian

Lerma H., Sergio; Errea, Beatriz; Dukelsky, Jorge; Satula, W.
2007-07-17

Digital.CSIC (Spain)

52

Exact Solution of the Isovector Neutron-Proton Pairing Hamiltonian

Dukelsky, Jorge; Gueorguiev, V. G.; Van Isacker, P.; Dimitrova, S.; Errea, Beatriz; Lerma H., Sergio
2006-02-23

Digital.CSIC (Spain)

53

Evolution of nuclear shapes in medium mass isotopes from a microscopic perspective

Robledo, L. M.; Rodríguez-Guzmán, R.; Sarriguren, Pedro
2008-09-22

Digital.CSIC (Spain)

54

Estructura cristalina y propiedades de la solución sólida YCoXMn1-XO3

Gutiérrez, D.; Peña, O.; Fernández Lozano, José Francisco; Moure Jiménez, Carlos
2002-01-01

Digital.CSIC (Spain)

56

Crystallization and preliminary X-ray diffraction analysis of the fructofuranosidase from Schwanniomyces occidentalis

Polo, Aitana; Alvaro-Benito, Miguel; Fernández-Lobato, María; Sanz-Aparicio, Julia
2010-01-01

Digital.CSIC (Spain)

57

Crystalline structure and electrical properties of Dy1-XCaXMnO3 solid solution

Moure Jiménez, Carlos; Gutiérrez, D.; Durán Botia, Pedro; Peña, O.
2002-11-01

Digital.CSIC (Spain)

60

A gauge theory of quantum mechanics

Isidro, José M.; Gosson, Maurice A. de
2007-01-30

Digital.CSIC (Spain)