A conceptual and practical overview of cDNA microarray technology: implications for basic and clinical sciences

cDNA microarray is an innovative technology that facilitates the analysis of the expression of thousands of genes simultaneously. The utilization of this methodology, which is rapidly evolving, requires a combination of expertise from the biological, mathematical and statistical sciences. In this review, we attempt to provide an overview of the principles of cDNA microarray technology, the practical concerns of the analytical processing of the data obtained, the correlation of this methodology with other data analysis methods such as immunohistochemistry in tissue microarrays, and the cDNA microarray application in distinct areas of the basic and clinical sciences.

Emission, kinetic and magnetic phenomena in rare-earth and transition metal doped ZnSe single crystals

In this work emission, optical, electrical and magnetic properties of the d- and f- elements doped zinc selenide crystals were investigated within a wide temperature range. Doping was performed in various technological processes: during the growth by chemical vapor transport method; by thermal diffusion from the Bi or Zn melt. Concentration of the doping impurity in the crystals was controlled by amount of the dopant in the source material or by its concentration in the doping media. Special interest in the work was paid to the influence of the different concentrations of Cr and Yb impurities on ZnSe crystals’ properties, correlations between observed effects and similarities with the Ni, Mn and Gd dopants are analysed. Possibility of formation of the excitons bound to the doping d-ions was shown. In contrast to this, it was observed that f-elements do not bound excitons, but prevent formation of excitons bound to some uncontrolled impurities. A mechanism of Cr doping impurity interaction with background impurities and zinc selenide structural defects was proposed based on experimental data. An assumption about resonant energy transfer between double charged chromium ions and complexes based on crystals’ vacancy defects was made. A correlation between emission and magnetic properties of the d- ions doped samples was established. Based on this correlation a mechanism explaining the concentration quench of the emission was proposed. It was found that f-ions bind electrically active shallow and deep donor and acceptor states of background impurity to electrically neutral complexes. This may be observed as “purification” of ZnSe crystals by doping with the rare-earth elements, resulting i tendency of the properties of f-ion doped crystals to the properties of intrinsic crystals, but with smaller concentration of uncontrolled native and impurity defects. A possible interpretation of this effect was proposed. It was shown that selenium substituting impurities decrease efficiency of the Yb doping. Based on this experimental results an attempt to determine ytterbium ion surroundings in the crystal lattice was made. It was shown that co-doping of zinc selenide crystals with the d- and f- ions leads to the combination of the impurities influence on the material’s properties. On the basis of obtained data an interaction mechanism of the d- and f-elements co-dopants was proposed. Guided by the model of the ytterbium ion incorporation in the selenide sublattice of the ZnSe crystals, an assumption about stabilization of single charged chromium ions in the zinc sublattice crystal nodes, by means of formation of the local charge compensating clusters, was made.

Postcard - Photograph postcard showing two young males and one female (all unidentified)

A postcard with a photo image of two young males and a female (all unidentified). Postcard image is stamped on rear side "C.H. Arthur, 85 St. Paul St., St. Catharines, Ont."

Indenture of Quit Claim Deed between Roswell G. Benedict, Charles Pierson and Ira Spaulding, all of the same of the Town of Clifton to Samuel Zimmerman of the Town of Clifton

Indenture of Quit Claim Deed between Roswell G. Benedict, Charles Pierson and Ira Spaulding, all of the same of the Town of Clifton to Samuel Zimmerman of the Town of Clifton for Lots no. 10 and 11 in Block F in the Town of Clifton – instrument no. 7127, April 28, 1856.

Picture of the world; or a description of the manners, customs and costumes of all nations

UANL

Fabrication and Characterization of All-Fiber Components for Optical Access Networks

This Thesis deals with the fabrication and characterization of novel all-fiber components for access networks. All fiber components offer distinctive advantages due to low forward and backward losses, epoxy free optical path and high power handling. A novel fabrication method for monolithic 1x4 couplers, which are vital components in distributed passive optical networks, is realized. The fabrication method differs from conventional structures with a symmetric coupling profile and hence offers ultra wideband performance and easy process control. New structure for 1x4 couplers, by fusing five fibers is proposed to achieve high uniformity, which gives equivalent uniformity performance to 1x4 planar lightwave splitters, isolation in fused fiber WDM is improved with integration of long period gratings. Packaging techniques of fused couplers are analyzed for long term stability.

Electron Donating Property and Catalytic Activity of Perovskite-type Mixed Oxides (ABO3 ) Consisting of Rare Earth and 3d Transition Metals

The catalytic activity of Perovskite-type mixed oxides (LaCo03 . PrCo03 and SmCo03 ) for the reduction of cyclohexanone to cyclohexanol with 2-propanol (Meerwein-Ponndorf-Verley reduction) has been studied. The data have been correlated with the surface electron donor properties of these mixed oxides.

Catalytic activity of some of the perovskite-type mixed oxides (ABO3) consisting of rare earth and 3d transition metals

The catalytic activity of some of the ABO3 (A = La, Pr and Sm, B= Cr, Mn, Fe, Co and Ni) perovskite-type oxides for the liquid phase reduction of ketone and oxidation of alcohol in 2-propanol medium has been studied. The data have been correlated with the surface electron donor properties of these oxides. The surface electron donor properties have been determined from the adsorption of electron acceptors of varying electron affinities on the oxide surface.

Climate change: a contemporary and geological perspective: introduction

This file describes the resouces to be made available through the Open Educational Resources 'C-change in GEES' project exploring the open licensing of climate change and sustainability resources in the Geography, Earth and Environmental Sciences.

Earth and the universe.

Para responder a las preguntas que un niño puede hacer sobre la Tierra. Cómo se ve desde el espacio, que lugar ocupa en el sistema solar, cómo esta formada la corteza y el centro de la Tierra, qué son los volcanes, los terremotos, las tormentas, el clima,las estaciones climatológicas, y cómo todo esto está en peligro por la acción del hombre. Tiene un glosario como apoyo lingüístico.

BTEC level 3 National sport and exercise sciences.

El programa BTEC es un programa de estudios que permite obtener una cualificación profesional o laboral. Este recurso está preparado para ayudar al alumno en el curso BTEC National, nivel 3, especificación de deporte y ciencias del ejercicio. Incluye unidades obligatorias y unidades opcionales y conocimientos y actividades que permiten obtener los grados de aprobado, notable y sobresaliente.

Sport and exercise sciences. Level 3. BTEC National.

Este recurso ha sido escrito para ayudar a los alumnos a superar las pruebas para el nivel 3 del curso Edexcel BTEC National en la especificación de 2010 de deporte y ciencias del ejercicio. Incluye veintitrés unidades, además de actividades de evaluación en cada unidad que cubren todos los criterios de ésta para ofrecer a los estudiantes la oportunidad de practicar sus tareas y profundizar en el conocimiento y la comprensión de la materia y obtener los grados de aprobado, notable y sobresaliente. También, hay un capítulo dedicado a la enseñanza superior que ayuda a los candidatos a prepararse para la vida universitaria y el aprendizaje.