14 research outputs found
Το σαξόφωνο στην συμφωνική μουσική του 19ου αιώνα
No full textΤο σαξόφωνο απο την αρχή της εφεύρεσής του το 1846, παρόλο που ήταν ένα μουσικό όργανο με ιδιαίτερο και ευέλικτο ηχόχρωμα, δεν κατάφερε να γίνει ένα απο τα πιο διαδεδομένα όργανα της συμφωνικής μουσικής , όπως άλλα που δέσποζαν σε εκείνη την περίοδο. ο προβληματισμός που δημιουργήθηκε έυλογα ήταν γιατί ένα τέτοιο όργανο δεν ενσωματώθηκε απευθείας μέσα στην συμφωνική ορχήστρα. Απο τη μία υποστηρίζεται πως δημιουργήθηκε σε έναν αιώνα όπου η συμφωνική ορχήστρα είχε ήδη σταθεροποιηθεί και ήταν παρακινδυνευμένο να διαταραχθεί η ισορροπία στις συνθέσεις, συνεπάγοντας έτσι την περιθωριοποίησή του. Απο την άλλη όμως, έχει αποδειχθεί οτι ο Adolphe Sax, ο δημιουργός του σαξόφωνου, είχε πολλούς εχθρούς που προπαγάνδισαν την ηθελημένη αποτυχία του ίδιου του δημιουργού και κατα συνέπεια του σαξόφωνου. Σκοπός αυτής της εργασίας είναι μέσα απο γεγονότα και καταστάσεις να αναφερθεί η πορεία που ακολούθησε το σαξόφωνο, οι συνθέτες που επέλεξαν και υποστήριξαν την ένταξή του στην συμφωνική μουσική απο την αρχή της δημιουργίας του μέχρι και τις αρχές του 20ου αιώνα, και να αναζητηθούν ιδιαιτερότητες, συνθετικές και εκτελεστικές, μέσα απο τρία παραδείγματα συμφωνικής μουσικής: 1. Pictures at an exhibition: The old castle, M. Mussorgsky (1874) 2. L'Arlesienne suite no.2, Pastorale, G.Bizet (1880) 3. Rapsodie for saxophone and orchestra, C.Debussy (1903)The saxophone since the beginning of its invention in 1846, although it was a musical instrument with a distinctive and versatile sound, failed to become one of the most widespread organs of symphonic music, such as those that dominated at that era. The question that was created was why such an instrument was not directly incorporated into the symphony orchestra. On the one hand it is argued that it was created in a century when the symphony orchestra had already stabilized and was in danger of disturbing the balance in the compositions, thus implying its marginalization. On the other hand, it has been shown that Adolphe Sax, the saxophone creator, had many enemies that propagated the deliberate failure of the author himself and consequently the saxophone. The purpose of this thesis is through events and situations to refer to the course that the saxophone followed the composers who chose and supported their integration into symphonic music from the beginning of its creation until the beginning of the 20th century and to analyze composing, performing issues, through three examples of symphonic music: 1. Pictures at an exhibition: The old castle, M. Mussorgsky (1874) 2. L'Arlesienne suite no.2, Pastorale, G.Bizet (1880) 3. Rhapsody for saxophone and orchestra, C.Debussy (1903
Análisis cienciométrico de las producciones científicas odontológicas peruanas indexadas en Scopus periodo 1979-2021
No full textLa presente investigación muestra un estudio cienciométrico de las
producciones científicas odontológicas peruanas indexadas en Scopus, que
es una de las mayores bases de datos utilizada por la comunidad científica
respecto a diversos temas o disciplinas de interés. El objetivo principal de
investigación fue describir cómo ha evolucionado las producciones científicas
odontológicas peruanas indexadas en Scopus periodo 1979-2021. El método
empleado fue el análisis bibliométrico que se encarga de cuantificar ciertos
aspectos de la ciencia para poder comparar, medir y objetivar la actividad
científica, tomando como base de datos Scopus, incluyendo solo los
documentos con afiliación peruana en la disciplina estomatológica. Tras la
revisión bibliográfica, se analizaron 600 documentos. Se encontró que la
institución que produjo la mayor cantidad de documentos fue la Universidad
Peruana Cayetano Heredia (n=191; 31.83%). Por otro lado, la revista Journal
of Oral Research fue la que mayor producción alcanzó (78), seguido por la
Revista Cubana de Estomatología (41), y según la ley de Bradford que se
encarga de describir la relación cuantitativa entre las revistas y los documentos
científicos en un área específica se pudo apreciar que el 4.24% de las
principales revistas más productivas (5 revistas) desarrollaron 189
documentos, equivalente al 32.47% del total de documentos. Mayta-Tovalini
fue el autor que produjo el mayor número de documentos (55), y que según la
ley de Lotka que se encarga de la relación entre los autores y la producción
científica, los autores que solo realizaron dos publicaciones fue de 177;
aplicando la ley de Lotka se estimaba una producción de 162, por lo que se
cumplía la aproximación de producción. Las palabras claves concurrentes
fueron Human, Maxilla, Child, Male, Adolescent. La disciplina que se encontró
con mayor frecuencia fue la cirugía maxilofacial con 258 documentos. Se pudo
apreciar que en los últimos tres años se ha llegado a producir el 54.50% del
total de los documentos. Finalmente, se muestra un coeficiente de
determinación (R2) de 0.7804 y una media de producción de 13,95.This research shows a scientometric study of the Peruvian dental scientific
productions indexed in Scopus, which is one of the largest databases used by
the scientific community regarding various topics or disciplines of interest. The
main research objective was to describe how the Peruvian dental scientific
productions indexed in Scopus period 1979-2021 have evolved. The method
used was the bibliometric analysis that is responsible for quantifying certain
aspects of science to compare, measure and objectify scientific activity, taking
Scopus as a database, including only documents with Peruvian affiliation in the
stomatological discipline. After the bibliographic review, 600 documents were
analyzed. It was found that the institution that produced the largest number of
documents was the Universidad Peruana Cayetano Heredia (n = 191; 12.11%).
On the other hand, the Journal of Oral Research was the one with the highest
production (78), followed by the Cuban Journal of Stomatology (41), and
according to Bradford's law, which is responsible for describing the quantitative
relationship between journals and Scientific documents in a specific area, it
could be seen that 4.24% of the main most productive journals (5 journals)
developed 189 documents, equivalent to 32.47% of all documents. MaytaTovalini
was
the
author
who
produced
the
largest
number
of
documents
(55),
and
according
to
the
Lotka
law
that
deals
with
the
relationship
between
authors
and
scientific production, the authors who only made two publications were
177; Applying Lotka's law, a production of 162 was estimated, thus the
production approximation was fulfilled. The concurrent keywords were Human,
Maxilla, Child, Male, Adolescent. The most frequently encountered discipline
was maxillofacial surgery with 258 documents. It could be seen that in the last
three years 54.50% of the total documents have been produced. Finally, a
coefficient of determination (R2) of 0.7804 and a mean production of 13.95 are
shown
Who Am I? A Qualitative Study Exploring Identities and Sense of Belonging of Black Migrant Women in South Africa
No full textPost-apartheid South Africa experienced a massive migration flow of African migrant women due to the accommodative Constitution of the Republic of South Africa that was promulgated in 1996. Diversity, multiculturalism, and ethnic and social heterogeneity have been some of the features and challenges of modern South Africa blending national and non-national elements. Nevertheless, black migrant women experience significant levels of xenophobia and multiple layers of discrimination because of “being a woman”, “being Black” and “being a migrant”. The perennial problem of xenophobia in South Africa towards Black Africans is complex and multifaceted; the institutional side of xenophobia circumvents other explanations including socio-cultural and structural monopolizing of the negative attitude of the South African state, politicians, and civil servants towards Black foreigners and their unfavorable treatment. This paper critically examines how black migrant women negotiate their gendered, racialized, and ethnic identities within the identity-belonging realm and highlights the significance of belonging for foreign nationals on African terrain. By analysing the lived experiences of black, migrant women and their identity-related challenges, the paper addresses the implications of these challenges as they arise in a post-colonial, decolonized South Africa. The study contributes to theory in the field of black social psychology and invisible intersectional identity within a black majority context, with practical application for finding ways for supporting their inclusion in commerce. The author employed a qualitative methodology based on narrative interviews with black migrant women of African descent using a combination of purposeful and snowballing sampling techniques. The migrant respondents’ perceptions and lived experiences of exclusion and discrimination lend support to the argument that the intersection of gender, race, and migration status affects their inclusion, and that the invisible identity of migration contributes to a sense of belonging/ non-belonging in the host country. It further highlights how black migrant women utilize multiple mechanisms to negotiate their identity and how being black, migrant females predisposes them to racial discrimination, xenophobia, and workplace exclusion, which has implications for Black identity politics, and belonging discourses
Hydrogenation of carbon dioxide (CO₂) to fuels in microreactors: a review of set-ups and value-added chemicals production
No full textClimate change, the greenhouse effect and fossil fuel extraction have gained a growing interest in research and industrial circles to provide alternative chemicals and fuel synthesis technologies. Carbon dioxide (CO2) hydrogenation to value-added chemicals using hydrogen (H2) from renewable power (solar, wind) offers a unique solution. From this aspect this review describes the various products, namely methane (C1), methanol, ethanol, dimethyl ether (DME) and hydrocarbons (HCs) originating via CO2 hydrogenation reaction. In addition, conventional reactor units for the CO2 hydrogenation process are explained, as well as different types of microreactors with key pathways to determine catalyst activity and selectivity of the value-added chemicals. Finally, limitations between conventional units and microreactors and future directions for CO2 hydrogenation are detailed and discussed. The benefits of such set-ups in providing platforms that could be utilized in the future for major scale-up and industrial operation are also emphasized
New types of knowledge about system dynamics for intelligent control system design.
No full textThis is a thesis by publication. This thesis comprises ten published/submitted journal articles including eight research articles and two review articles. Five of these journal papers have been already published or finally accepted for publication. This thesis, based on research undertaken in the area of intelligent and non-model-based control, aims at broadening
knowledge about system dynamics applicable for control system design. Currently, mathematical models of systems, experimental input-output data and experts’ knowledge in the form of fuzzy rules (linguistic expressions) are three types of knowledge about systems dynamics which are employed in control system design. These types of knowledge are used to define the number and the positions of controllers in the control system (architecture of control systems) and/or the mathematical form of controllers (controllers’ structure) and/or controllers’ parameters. Defining control systems at these three levels (architecture, controllers’ structure and parameters) forms the process of control design. In the area of non-model-based control, some cases of unexpected poor control performance were observed by the author. For instance, neuro-predictive method controls process plants very well. This method is based on input-output data. Thus, this control technique seems to promise a good control performance in general. However, attempts to use this technique in yaw angle control of a model helicopter were unsuccessful regardless of the effort spent on tuning the controller parameters (see Chapter 3); similarly, unsuccessful outcomes resulted for feedback fuzzy control of model helicopter pitch angle (see Chapter 4). This thesis has two main contributions: firstly, this thesis provides explanation for the aforementioned unexpected poor performances through introduction of two new concepts: Control Inertia (see Chapter 3) and Generalized-Type-Zero (GTZ) Systems (see Chapter 7). It is shown here that high control inertia systems witness a considerable repeating overshoot, and GTZ systems need consistent control input to maintain their desirable control output. Secondly, based on these two new concepts, this thesis offers new control methods with developing new control ideas: fuzzy brakes and steady state control laws which can improve the performance, energy consumption and suitability for implementation of control systems. The proposed methods are shown to be usable for a wide range of systems. The merits of the proposed control approaches were indicated theoretically and practically. As a result, being/not being high control inertia and being/not being GTZ were used as new types of knowledge about system dynamics applicable in control system design.Thesis (Ph.D.) -- University of Adelaide, School of Mechanical Engineering, 201
Diferencias y similitudes entre dos cuentos populares islandeses y dos leyendas españolas del siglo XIX
No full textThis study, carried out in order to complete the requirements for a title of BA in Spanish, from the University of Iceland, has as its main objective to discuss the differences and similarities between two folktales and two legends written in the XIX century, in Iceland and in Spain. To fulfill this purpose, I analyze in particular the four stories to establish a comparison of these two cultures linked by oral traditions. These oral narratives were later developed into written folktales and legends, published in a historical period characterized by romanticism and realism. The main purpose is to put in evidence how worlds can be related through similar topics represented in texts that demonstrate how peoples evolution can be similar, even if it’s difficult to image that a common denominator could be found between habitants from different territories where history and language are not even shared. From one author to another fascinating actions are narrated, many of them regarding life and death, good and evil, wealth and poverty, etc. While simultaneously in each one of the texts an important moral message is revealed. To summarize, therefore, differences and similarities in the selected texts can allow readers to travel from one country to the other and not realize that they don't ocurre in the same place. Thanks to this study lovers of literature and multiculturalism will discover that these cultural artefacts, from Iceland and Spain, are more similar than different
Correction: From photocatalysis to photon– phonon co-driven catalysis for methanol reforming to hydrogen and valuable by-products
No full textCorrection for ‘From photocatalysis to photon–phonon co-driven catalysis for methanol reforming to hydrogen and valuable by-products’ by Hui Wang et al., Chem. Soc. Rev., 2025, https://doi.org/10.1039/d4cs00551a.
The authors regret that the author name Sultan M. Al-Salem was spelled incorrectly in the original article. The correct author names are as presented here.
The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers
Locating Korean American adoptees: race, emotion, and out-of-place subjectivity
No full textBased on multi-site ethnographic methods and in-depth interviews, my dissertation explores identities and subjectivities of Korean American adoptees. Korean adoptee experiences of racial discrimination and the stigma of adoptee status enable their out-of-place subjectivity, indicating that a common identity can be constructed over the life course out of everyday mundane interactions. Drawing on methodology of Willis’ “ethnographic imagination” (2000), I examine mundane social interactions as ethnographic moments that engender and sustain out-of-place subjectivity. As Korean adoptees mature, shared experiences of being alienated and stigmatized intensify the affect that they feel toward each other. The affective identification that they feel provides the bases upon which they can build a lasting bond, an emotional kinship. This creation of bond is aided by spaces centered on adoptees, such as culture camps, adoptee gatherings, and heritage tours, where Korean adoptees meet and interact. I further analyze the sociocultural factors that give force to the adoptee bond, drawing on the concepts of “racial melancholia” (Eng and Han, 2000) and “haunting” (Gordon, 1997) to comprehend this unique emotional bond among Korean adoptees. In contrast to the iconic representations of Korean adoptees/Korean Americans in media as perpetual foreigners, Korean adoptees’ “stories” illustrate that they are just as much a product of varied American cultural milieus as anyone. As such, generational differences are found among Korean adoptees of varying age cohorts, deriving from historically different cultural discourses and practices, as well as changing sociocultural contexts in which international adoptions have taken place. By listening to adoptees from various life stages conceptualize their adoptee status and identity, this dissertation underscores the fact that adoptee identity is a product of complex process, emerging over the life course rather than a static category.Ph.D.Includes bibliographical referencesby Jane J. Par
Migrant Conversions
No full text"Peruvian migrant workers began arriving in South Korea in large numbers in the mid-1990s, eventually becoming one of the largest groups of non-Asians in the country. Migrant Conversions shows how despite facing unstable income and legal exclusion, migrants have come to see Korea as an ideal destination, sometimes even as part of their divine destiny. Faced with a forced end to their residence in Korea, Peruvians have developed strategies to transform themselves from economic migrants into heads of successful transnational families, influential church leaders, and cosmopolitan travelers. Set against the backdrop of the 2008 global financial crisis, Migrant Conversions explores the intersections of three types of conversions—monetary, religious, and cosmopolitan—to argue that migrants use conversions to negotiate the meaning of their lives in a constantly changing transnational context. As Peruvians carve out social spaces, they create complex and uneven connections between Peru and Korea that challenge a global hierarchy of nations and migrants. Exploring how migrants, churches, and nations change through processes of conversion reveals how globalization continues to impact people’s lives and ideas about their futures and pasts long after they have stopped moving or after a particular global moment has come to an end.
“A model of what transnational ethnographic research can accomplish.” ELEANA J. KIM, author of Adopted Territory: Transnational Korean Adoptees and the Politics of Belonging
“With crisp prose and candid presence throughout the text, Vogel gives us the first book-length study of the experiences of non-Asian migrants in South Korea.” CAREN FREEMAN, author of Making and Faking Kinship: Marriage and Labor Migration between China and South Korea
ERICA VOGEL is Associate Professor of Anthropology at Saddleback College.
Propuesta de aplicación de técnicas de coctelería clásica y molecular en frutas cultivadas en el Azuay: chamburo, durazno, pera y reina claudia
No full textEn el presente proyecto de intervención se realizó un estudio y propuesta de coctelería de autor fusionando técnicas clásicas y moleculares, al mismo tiempo que se promovió la aplicación de frutas de gran producción en el Azuay como chamburo, durazno, pera y reina claudia.
La investigación inició con una recopilación bibliográfica de las técnicas clásicas y moleculares de la coctelería, así como sus componentes y su utilización, a la vez que se hizo un análisis del mercado en la ciudad de Cuenca mediante un enfoque cualitativo de investigación para conocer las tendencias y la preferencia de los consumidores.
Complementando este estudio, se llevó a cabo una visita a uno de los lugares de mayor producción de estas frutas para tener más alcance en este trabajo.
Posteriormente se realizó la aplicación de las técnicas clásicas y moleculares de coctelería con las frutas en base a una experimentación previa con los diferentes licores; obteniendo como resultado veinte cócteles que evidencian la asociación de los métodos anteriormente mencionados con las frutas seleccionadas.This project is a study and proposal of author cocktails, that fuse classical and molecular techniques, it also promotes the use of fruits of high production in the Azuay as chamburo, peach, pear, and plum.
This research starts with a bibliographic compilation of classical and molecular techniques of the cocktail bar, as well as its components and their use. Consequently we developed a market study in Cuenca through a qualitative approach taking into account that our final goal was identify the trends and preferences of users.
Additionally we visited a place of high production of these fruits to support the accomplishment of the objectives of this project.
Finally we made an experiment using classical and molecular techniques with fruits on the basis of a prior experimentation with different liquors; obtaining as a result twenty cocktails that demonstrate the association of methods initially named plus the selected fruits.Licenciada en Gastronomía y Servicios de Alimentos y BebidasCuenc
