Innovative calibration method for rotating-coil magnetometers

Rotating-coil magnetometers, which rely on induction-coil arrays, are commonly used for magnetic measurements of particle accelerator magnets. In order to characterize magnetic fields with high accuracy using the induced voltages, it is essential to calibrate the geometry of the coils. In this thesis we present an innovative method of calibration of the coil radius of rotation which is necessary for determination of the field gradient. The method, called rotating calibration method, is based on two well-known measurement techniques: single-stretched wire and rotating induction-coils. The flux measured with a rotating induction-coil over the entire length of a reference quadrupole magnet is cross-calibrated with a single-stretched wire measurement. In the experimental validation of the method, the radius of rotation of several coils has been calibrated with an accuracy of 10 µm on a radius of 30 mm. The advantage of this method is that the calibration is performed under the same conditions in which the rotating-coil magnetometers are used for measuring accelerator magnets. In the thesis also a proposal for calibration of other geometric factors of a coil by using higher order multipoles is presented

Los zarcillos del emblema Bat

The written documents referring to the Bat emblem do not provide enough details to properly identify its features. In the study of this sacred element, it is convenient to undertake an iconographic analysis of its depictions in order to determine its spheres of influence. This paper focuses on the two spiral-shaped elements that are present in the upper part of this emblem, which displays a possible connection with plants, particularly those of the Cucurbitaceae family.Los documentos textuales asociados al emblema Bat no proporcionan información suficiente que permita entender sus características. Para desarrollar un estudio adecuado de este emblema religioso, es necesario realizar un análisis de sus representaciones iconográficas para, después, poder explicar los contextos a los que se asocia. Este artículo se centra en los dos componentes con forma de espiral que presenta el emblema en su parte superior y en un posible vínculo con elementos vegetales, específicamente con algunos pertenecientes a la familia de las cucurbitáceas

La responsabilidad social corporativa y la fiscalidad: El caso INDITEX

Treballs Finals del Màster Oficial de Comptabilitat i Fiscalitat, Facultat d'Economia i Empresa, Universitat de Barcelona, Curs: 2018-2019, Tutor: Antonio Somoza LópezPremi a la millor Tesi de Màster en Comptabilitat 2019. ACCID Associació Catalana de Comptabilitat i DireccióEste trabajo ha realizado un exhaustivo análisis del grupo Inditex, S.A. en los años 2017 y 2018, y para las áreas de responsabilidad social empresarial, fiscal y económica financiera. Por la parte de responsabilidad social corporativa, el grupo refleja una preocupación por satisfacer las necesidades de los grupos de interés y desarrolla numerosas prácticas y políticas para ellos. El segundo punto analizado es la evitación fiscal. Con toda la información examinada, se muestra que la contribución impositiva está en concordancia con el volumen de la actividad. Seguidamente, con el análisis de los estados consolidados se valora la situación económica financiera que se encuentra el grupo. Inditex tiene una muy elevada rentabilidad económica y cuenta con un alto grado de liquidez y solvencia. Finalmente, la conclusión global a la que se llega con el trabajo realizado es que Inditex es un grupo social y medioambientalmente muy responsable, que cumple con sus obligaciones fiscales y con una posición privilegiada desde el punto de vista económico y financiero

Una visión general de la naturaleza y funciones de la diosa bovina Sematweret en el Reino Antiguo

This paper presents an analysis of the Old Kingdom Pyramid Texts that refer to the aurochs-deity Sematweret. This study will consider the writing of her name, her physical attributes and the actions in which she is involved, mainly as the mother of the deceased. For a better understanding of this deity, it is also relevant to examine the relationship with other female deities, such as Nekhbet or the White Crown, and with divinities that appear alongside her, like the goddess Hewenetweret or the god Semawer. The observation of all the elements linked to her is a perfect example of the fluidity of ancient Egyptian myths, and could even indicate the fusion of mythic references in the composition of PT 703 and PT 548, as well as the attribution of some aspects to Nut at an undetermined date prior to the reign of Pepy I.Este artículo presenta un análisis de los Textos de las pirámides del Reino Antiguo que hacen referencia a la divinidad uro Sematweret. El estudio tiene en cuenta la escritura de su nombre, sus atributos físicos y las acciones en las que se implica, principalmente como madre del difunto. Para una mejor comprensión de esta deidad, también resulta necesario examinar su relación con otras divinidades femeninas en este corpus textual, como Nekhbet o la Corona Blanca, y con las deidades que aparecen mencionadas junto a ella, como la diosa Hewenetweret o el dios Semawer. La identificación de los elementos vinculados con la diosa ofrece un buen ejemplo de la fluidez que existió en los mitos del Egipto antiguo, e incluso podría indicar la existencia de fusión de referencias míticas en PT 703 y PT 548, así como la atribución de algunos aspectos de Sematweret a Nut en un momento indeterminado previo al reinado de Pepy I

Quantification of Ralstonia solanacearum Colonization of Potato Germplasm Using Luminescence

We have developed an unsophisticated, non-disruptive and accurate method for evaluation of pathogen colonization in planta. In this protocol we use a Ralstonia solanacearum (R. solanacearum) UY031 strain genetically modified to constitutively generate light from a synthetic luxCDABE operon stably inserted in its chromosome. This system allows bacterial quantification in a high-throughput manner, avoiding time-consuming and tedious bacterial dilution plating and colony counting. In addition, this system could be especially useful in plant breeding programs to detect bacterial latent growth in symptomless parental lines before their inclusion in long-term disease resistance breeding programs

Analysing prosody and meaning in Spanish: implications for the teaching of English as a foreign language

The aim of this work is to identify the difficulties that Spanish learners of English may have when confronted with the L2 intonation. The different tone choices made by native speakers of Spanish in North Patagonia, Argentina, are analysed in the light of the Autosegmental-Metrical framework (LADD, 1996) and the Relevance Theory (SPERBER and WILSON, 1995, 2004). The findings are compared with the tone choices produced by native speakers of English. The main results indicate that the same procedural instruction is manifested in both languages by means of L* L% and H+L* L%. However, Spanish favours L* whereas English prefers H+L*.Fil: Arana, Valeria Fernanda. Universidad Nacional del Comahue. Facultad de Lenguas; ArgentinaFil: Blázquez, Bettiana Andrea. Universidad Nacional del Comahue. Facultad de Lenguas; ArgentinaFil: Espinosa, Gonzalo Eduardo. Universidad Nacional del Comahue. Facultad de Lenguas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Valls, Lucía Soledad. Universidad Nacional del Comahue. Facultad de Lenguas; Argentin

Ethical Behaviour in SME Negotiations: Evidences from Greater Lincolnshire

Negotiations bring not only uncertainty but also ambiguity on what is morally appropriate or not to do. This paper sought to determine how appropriate SMEs managers perceive the use of ethically questionable tactics that are usually used in business negotiations and how culture may impact this perception. To achieve this, the study makes comparisons of this perception across demographic and personal characteristics like gender, age, negotiating experience, training, etc. In addition, it studies the causal relationship between cultural values and cultural intelligence with business ethics to analyse the potential of culture to explain the perception of appropriateness of using ethically questionable tactics. The results show that the traditional competitive bargain tactics are seen as the most appropriate ones by those in Greater Lincolnshire and the tactics concerning attacking the opponent’s network as the least appropriate. Culture has a significant impact on the perceived appropriateness of using ethically questionable tactics in negotiations. The relevant implications are discussed along with the limitations and future research directions

The critical pedagogy that transforms the reality

Authors, teachers, students, family members, and other citizens from diverse cultures, gender options and countries have been and are developing critical pedagogy all over the world. However, there are authors of "critical pedagogy" who use this label for luxuries and egotism but who have never transformed nor supported the transformation of any school or educational project. This article presents four criteria to distinguish between the critical pedagogy that transforms reality and the "critical pedagogy" that only benefits those who use this label. The first criterion is the egalitarian dialogue that critical pedagogy authors use with very diverse citizens to achieve extensive and profound real transformations. The second one is the social impact of their work on society, especially on the oppressed, overcoming inequalities and improving their conditions of life. The third one is the equality of results of the oppressed in literacy as well as in sentiments and values, without segregating. The fourth one is the critical pedagogy style versus the Althusserian and market styles, highlighting the scientific and theoretical rigor of critical pedagogy authors opposed to the lack of theoretical basis of authors of "critical pedagogy"

Central nervous system physiology

This is the second chapter of the series on the use of clinical neurophysiology for the study of movement disorders. It focusses on methods that can be used to probe neural circuits in brain and spinal cord. These include use of spinal and supraspinal reflexes to probe the integrity of transmission in specific pathways; transcranial methods of brain stimulation such as transcranial magnetic stimulation and transcranial direct current stimulation, which activate or modulate (respectively) the activity of populations of central neurones; EEG methods, both in conjunction with brain stimulation or with behavioural measures that record the activity of populations of central neurones; and pure behavioural measures that allow us to build conceptual models of motor control. The methods are discussed mainly in relation to work on healthy individuals. Later chapters will focus specifically on changes caused by pathology

Transcriptome responses to Ralstonia solanacearum infection in the roots of the wild potato Solanum commersonii

Background: Solanum commersonii is a wild potato species that exhibits high tolerance to both biotic and abiotic stresses and has been used as a source of genes for introgression into cultivated potato. Among the interesting features of S. commersonii is resistance to the bacterial wilt caused by Ralstonia solanacearum, one of the most devastating bacterial diseases of crops. - Results: In this study, we used deep sequencing of S. commersonii RNA (RNA-seq) to analyze the below-ground plant transcriptional responses to R. solanacearum. While a majority of S. commersonii RNA-seq reads could be aligned to the Solanum tuberosum Group Phureja DM reference genome sequence, we identified 2,978 S. commersonii novel transcripts through assembly of unaligned S. commersonii RNA-seq reads. We also used RNA-seq to study gene expression in pathogen-challenged roots of S. commersonii accessions resistant (F118) and susceptible (F97) to the pathogen. Expression profiles obtained from read mapping to the S. tuberosum reference genome and the S. commersonii novel transcripts revealed a differential response to the pathogen in the two accessions, with 221 (F118) and 644 (F97) differentially expressed genes including S. commersonii novel transcripts in the resistant and susceptible genotypes. Interestingly, 22.6% of the F118 and 12.8% of the F97 differentially expressed genes had been previously identified as responsive to biotic stresses and half of those up-regulated in both accessions had been involved in plant pathogen responses. Finally, we compared two different methods to eliminate ribosomal RNA from the plant RNA samples in order to allow dual mapping of RNAseq reads to the host and pathogen genomes and provide insights on the advantages and limitations of each technique. - Conclusions: Our work catalogues the S. commersonii transcriptome and strengthens the notion that this species encodes specific genes that are differentially expressed to respond to bacterial wilt. In addition, a high proportion of S. commersonii-specific transcripts were altered by R. solanacearum only in F118 accession, while phythormone-related genes were highly induced in F97, suggesting a markedly different response to the pathogen in the two plant accessions studied