Search

In-process energy expenditure is cutting-edge research in the general field of energy application. In this paper, the amount of energy for heating or compressing a system in gas phase was estimated by using the thermodynamic equations. Firstly, the systems were chosen and among the alcohols, we used them from C3 to C12 to discuss the effect of number of carbons atoms in the chain. Secondly, the Peng-Robinson equation represented the pVT system behavior. Also, influences of the level in temperature and pressure was analyzed. The results show that the energy expended for isobaric heating was very similar in value regardig the pressure range (1-20 atm). The number of carbons in the chain had significant influence on the heating result of alcohols, as well as in the solution of integral of pdV. For isothermic compression, when the process ocurred at low pressures (1 to 5 atm), the amount of spent energy was pratically constant for all alcohols studied. Furthermore, for the same pressure range, as the temperature increases, the energy required to compress increases. Because there is no influence of the pdV term, internal energy change could be considered as the same of spent energy in the process., O gasto energético de um processo é uma investigação de ponta no domínio geral da aplicação da energia. Neste trabalho, a quantidade de energia para aquecer ou comprimir um sistema em fase gasosa foi estimada utilizando as equações termodinâmicas. Em primeiro lugar, os sistemas foram escolhidos e, entre os álcoois, escolhemos os de C3 a C12 para discutir o efeito do número de átomos de carbono na cadeia. Em segundo lugar, a equação de Peng-Robinson representou o comportamento do sistema pVT. Além disso, foi analisada a influência do nível na temperatura e na pressão. Os resultados mostram que a energia gasta para o aquecimento isobárico era muito semelhante em valor relativamente à gama de pressão (1-20 atm). O número de carbonos na cadeia teve uma influência significativa no resultado do aquecimento dos álcoois, bem como na solução integral do pdV. Para a compressão isotérmica, quando o processo ocorreu a baixas pressões (1 a 5 atm), a quantidade de energia gasta foi praticamente constante para todos os álcoois estudados. Além disso, para a mesma faixa de pressão, à medida que a temperatura aumenta, a energia para comprimir aumenta., El gasto de energía en proceso es una investigación de vanguardia en el campo general de la aplicación de la energía. En este trabajo se estimó la cantidad de energía para calentar o comprimir un sistema en fase gaseosa utilizando las ecuaciones termodinámicas. En primer lugar, se eligieron los sistemas y entre los alcoholes los usamos de C3 a C12 para discutir el efecto del número de átomos de carbono en la cadena. En segundo lugar, la ecuación de Peng-Robinson representó el comportamiento del sistema pVT. Además, se analizó la influencia del nivel en la temperatura y la presión. Los resultados muestran que la energía gastada para el calentamiento isobárico fue muy similar en valor con respecto al rango de presiones (1-20 atm). El número de carbonos en la cadena tuvo influencia significativa en el resultado de calentamiento de los alcoholes, así como en la solución de integral de pdV. Para la compresión isotérmica, cuando el proceso ocurrió a bajas presiones (1 a 5 atm), la cantidad de energía gastada fue prácticamente constante para todos los alcoholes estudiados. Además, para el mismo rango de presión, a medida que aumenta la temperatura, aumenta la energía para comprimir.

Point cloud modeling of rock slopes using LIDAR and Structure-from-Motion digital stereophotogrammetry provides,at a minimum, thousands of facets and facet normals that can be used to identify the densities of orientations of rock massdiscontinuities, the geometries of potentially removable blocks, and the character of the excavation face. As part of the EngineeringGeology graduate curriculum at the Civil and Environmental Engineering program at the University of California, Berkeley we teachgraduate students an integrated methodology for [a] gathering point cloud information be laser or camera; [b] computing facets andfacet normals form point clouds for stereonet presentation and geometric analysis of block dimension; [c] extract rock massdiscontinuities from stereonet data to analyze key blocks, assess discontinuous deformation analysis (DDA) behavior, and modelrock slope stability. These new methods require a suite of different software tools discussed in the paper to move through the workflowprocess. Computational rock mechanics provides data sets that are orders of magnitude richer in detail and result in betterunderstanding of rock slope and tunnel key block behavior. Full application of computational rock mechanics methods should reducethe cost of bolting by identifying critical support orientations and design loads.

Social deficits are frequently observed in patients suffering from neurodevelopmental disorders, but the molecular mechanisms regulating sociability are still poorly understood. We recently reported that the loss of the microRNA (miRNA) cluster miR-379-410 leads to hypersocial behavior and anxiety in mice. Here, we show that ablating miR-379-410 in excitatory neurons of the postnatal mouse hippocampus recapitulates hypersociability, but not anxiety. At the cellular level, miR-379-410 loss in excitatory neurons leads to larger dendritic spines, increased excitatory synaptic transmission, and upregulation of an actomyosin gene network. Re-expression of three cluster miRNAs, as well as pharmacological inhibition of the actomyosin activator ROCK, is sufficient to reinstate normal sociability in miR-379-410 knockout mice. Several actomyosin genes and miR-379-410 family members are reciprocally dysregulated in isogenic human induced pluripotent stem cell (iPSC)-derived neurons harboring a deletion present in patients with Williams-Beuren syndrome, characterized by hypersocial behavior. Together, our results show an miRNA-actomyosin pathway involved in social behavior regulation.

The dynamic fracture process of rock materials is of importance for several industries, such as the rock drilling process in geothermal and mining applications. Gaining knowledge and understanding of dynamic rock fracture through numerical simulations can enhance the rock drilling process, for example by optimising the drill bit geometry and drilling parameters. In order for a numerical simulation of rock fracture processes to be accurate, the model needs to be able to capture key aspects of rock materials. Generally, rock materials are said to be britle and heterogeneous. The heterogeneity is partly due to the varying mechanical properties of constituent minerals, and partly due to the varying sizes, shapes, and directions of these minerals. The main objective of this thesis is the development of a heterogeneous rock model to be used for dynamic drilling processes. In the first article in this thesis, a heterogeneous bonded particle model is developed. Here, the heterogeneity is introduced in two steps – a geometrical heterogeneity using statistically distributed grain shapes and sizes, and a mechanical heterogeneity by distributing bonding parameters using a Weibull distribution. The model is applied to the quasi-static Brazilian disc test and a parametric study is conducted on the heterogeneity index and intergranular cement strength. The results show that crack initiation and propagation are highly dependent on the degree of heterogeneity. In general, the model was found to replicate typical phenomena associated with britle heterogeneous materials, for example unpredictability of macroscopic strength and crack properties. In the second paper of this thesis, an extensive dynamic experimental characterization of two igneous rock materials – Kuru grey granite and Kuru black diorite – is conducted. Here, a Split-Hopkinson configuration together with high-speed photography and digital image correlation is utilized to obtain the compressive and indirect tensile behavi

Biomineralization had apparently evolved independently in different phyla, using distinct minerals, organic scaffolds, and gene regulatory networks (GRNs). However, diverse eukaryotes from unicellular organisms, through echinoderms to vertebrates, use the actomyosin network during biomineralization. Specifically, the actomyosin remodeling protein, Rho-associated coiled-coil kinase (ROCK) regulates cell differentiation and gene expression in vertebrates' biomineralizing cells, yet, little is known on ROCK's role in invertebrates' biomineralization. Here, we reveal that ROCK controls the formation, growth, and morphology of the calcite spicules in the sea urchin larva. ROCK expression is elevated in the sea urchin skeletogenic cells downstream of the Vascular Endothelial Growth Factor (VEGF) signaling. ROCK inhibition leads to skeletal loss and disrupts skeletogenic gene expression. ROCK inhibition after spicule formation reduces the spicule elongation rate and induces ectopic spicule branching. Similar skeletogenic phenotypes are observed when ROCK is inhibited in a skeletogenic cell culture, indicating that these phenotypes are due to ROCK activity specifically in the skeletogenic cells. Reduced skeletal growth and enhanced branching are also observed under direct perturbations of the actomyosin network. We propose that ROCK and the actomyosin machinery were employed independently, downstream of distinct GRNs, to regulate biomineral growth and morphology in Eukaryotes., Computer Graphics and Visualisation

El álbum que presento reflexiona sobre la visión etnocéntrica que tenemos del mundo. Al realizar trabajo de campo en distintos contextos culturales y estudiar la música como cultura se evidencia la perspectiva del investigador. Por ello, mi doble posicionamiento como músico y (etno)musicólogo es esencial para entender este disco, así como las músicas y músicos (cubanos, flamencos, jazzeros, rockeros, hip hop...) que han aportado su experiencia a la asignatura de Músicas del Mundo que imparto en la Universidad Complutense de Madrid. Este disco lo he querido grabar con ellos. Conceptos, viajes y vivencias se entremezclan en este álbum que espero les encante., Depto. de Musicología, Fac. de Geografía e Historia, pub

Användande av teknik har haft stor inverkan på hur musik låter och skapas. Elgitarren och dess tillbehör har möjliggjort för gitarrister att skapa ljud som inspirerar till kreativitet och vidareutveckling av speltekniker. Denna studie syftar till att undersöka och bidra med mer kunskap om hur lärare i elgitarr ser på att inkludera tekniskt medierade sound (TMS) i sin undervisning och vilka undervisningsstrategier de använder för att utveckla elevers musikaliska uttryck med TMS som hjälpmedel. Materialet samlades in genom enskilda kvalitativa forskningsintervjuer med tre lärare i elgitarr som i huvudsak undervisar på kulturskola. Analys av materialet gjordes med ett diskurspsykologiskt angreppsätt. Resultatet visar att TMS legitimeras genom instrumentkännedom för elever på nybörjarnivå och att TMS involveras mer i ensemble. Ämnet får större plats i instrumentundervisningen när elever utvecklat färdigheter på instrumentet till den nivån att undervisningen innehåller moment av improvisation, fördjupande genrekännedom och vidareutvecklande av spelteknik. Studien ger en inblick i hur undervisning kan se ut inom detta område som anses vara en betydande del i att spela elgitarr., Use of technology has had a major impact on how music sounds and is created. The electric guitar and its gear have enabled guitarists to create sounds that inspire creativity and further development of playing techniques. This study aims to investigate and contribute knowledge about how electric guitar teachers view the inclusion of technologically mediated sound (TMS) in their teaching and which strategies they use to develop students' musical expression with TMS as an aid. The material was collected through individual qualitative research interviews with three electric guitar teachers who mainly teach at kulturskola. Analysis of the material was done using a discourse psychology approach. The result shows that TMS is legitimized through instrument knowledge for students at beginner level and that TMS is more involved in ensemble. The subject takes on a more significant role in instrument teaching when students have developed skills on the instrument to the level that the teaching includes elements of improvisation, in-depth genre knowledge and further development of playing technique. The study provides insight into what teaching can look like with this subject matter, which is considered a significant part of playing the electric guitar.

Research on microphone choice and placement has been previously made for a variety of instruments, such as drums, vocals, and guitar, to name a few. However, in comparison, very little research has been made on the bass-cabinet. With help of the different methodologies used for previous research on electric guitar and snare drum, the optimal placement and choice of microphone for a 4x10” bass-cabinet were investigated. In a listening test, pre-recorded basslines were mixed with other instruments since it is more common to hear it in a mix of instruments rather than listening to it by itself. To make sure that the topic is not too broad, focus on the genre of rock was taken for this investigation. Both qualitative and quantitative data were collected in a set of listening tests where the subjects rated their preference for their most and least preferable basslines. The subjects were asked to describe their preference utilizing different characteristics of the stimuli. An ANOVA test provided evidence that there is a statistical difference between the preference of one microphone model at a 15 cm distance from the bass-cabinet, in the category bass with band.

Jag valde att som slutprojekt undersöka användandet av interaktivitet under konsertsammanhang eftersom det kombinerade mina intressen för rockmusik och programmering. Jag var intresserad av hur en sådan konsertform skulle mottas av en publik och vad genomförandet skulle ha för påverkan på mig. Syftet var att utforska interaktionen mellan framförare och publik inom musik på en rockkonsert och se på vilka sätt en större delaktighet påverkar den. För att svara på hur publiken upplevde konserten använde jag mig av en enkät som publiken fick möjlighet att besvara och för att kunna värdera min egen upplevelse tittade jag på en dokumentation av konserten och antecknade tankar jag mindes att jag hade. Svaren från de 44 deltagande i enkäten pekade på att en majoritet hade en positiv upplevelse och kände större delaktighet och engagemang. Min egen upplevelse kantades av stress kring en del tekniska missöden som skedde, men var i övrigt positiv. Publikens positiva bemötande tyder på att interaktivitet kan vara ett användbart grepp inom livemusik. Dock kan den innebära mycket stress som utövare ifall tekniken fallerar, av min upplevelse att döma. En viktig lärdom jag tar med mig är därför att det inte går att testa för mycket i förväg. Samt att ha en dedikerad person som sköter det interaktiva. Konsertformen i stort var oerhört spännande och kommer gissningsvis vara något som kommer efterfrågas mer framåt., MedverkandeTrummor & sång: Vilhelm AxBas: Axel NymanGitarr: Oliver BrittsGitarr & sång: Elias LangKeyboard & sång: Robin NovakKör på backtracks: Elias Lang & Elise NestorKeyboard på backtracks: Daniel KylénText av Elias Lang & Axel NymanMusik av Elias Lang & Axel NymanVideodokumentation: Hamoon TehraniLjud: Erik Metall

Es importante la caracterización del material rocoso en proyectos mineros, respecto a la resistencia a compresión, ya que mediante este parámetro se establecen factores de seguridad para taludes y túneles. Este trabajo tuvo como objetivo proponer una metodología simple y de aplicación práctica en campo, para la estimación de resistencia, con la aplicación de ensayos físicos, específicamente índices granulométricos e índice de carga puntual, con un predeterminado dimensionamiento de probetas. Los ensayos se valoran de forma sencilla, y se han ejecutado en 180 probetas, del mismo material, proveniente del sector Cojitambo, provincia del Cañar (Ecuador). Los resultados permiten su caracterización, estableciendo que la resistencia a compresión varía entre 75.9 MPa y 124.8 MPa, lo que categoriza al material como roca dura. Se concluye que la propuesta evita el envío permanente de muestras a laboratorio, ahorrando tiempo y dinero, por lo tanto, se ha estructurado una metodología para el objetivo planteado., Characterizing the rock material in mining projects is essential concerning compressive strength since this parameter establishes safety factors for slopes and tunnels. The objective of this work was to propose a simple methodology for practical application in the field, for the estimation of resistance, with the application of physical tests, specifically granulometric indices and point load test index, with a predetermined dimensioning of specimens. The tests are evaluated thoroughly and carried out on 180 samples, of the same material, from the Cojitambo sector, province of Cañar (Ecuador). The results allow its characterization, establishing that the compressive strength varies between 75.9 MPa and 124.8 MPa, categorizing the material as hard rock. It is concluded that the proposal avoids permanently sending samples to the laboratory, saving time and money. Therefore, a methodology has been structured for the stated objective.

Objective: To propose a genealogy of the practices and discourses that have shaped the New Colombian Music, one of the most relevant musical and cultural phenomena of recent decades in Colombia. The article analyzes the musical and discursive practices of pioneering rock groups in Colombia in the sixties and seventies and finds clues in the historical repertoire of Colombian rock to better understand today’s “novelties”. Methodology: This is done through the review of primary sources such as songs, album covers, interviews with Colombian musicians, and the review of specialized press. Originality: This article contributes to fill a gap in the studies on popular music in Colombia, particularly NMC, showing connections between groups and musicians of various generations, thus controverting the discourses that present it as an absolutely new and unprecedented phenomenon. Conclusions: After evidencing connections between musical repertoires from different eras, this research argues that the “new” label has been a constant in the Colombian music market, frequently used to refer to “fusions”, which are by no means exclusive to NMC. Likewise, it shows the influence that groups from the seventies, such as Banda Nueva and Cascabel, had on musicians and groups that shaped nmc at the end of the 20th century and the beginning of the 21st century., Objetivo: propor uma genealogia das práticas e discursos que moldaram a nova música colombiana, um dos fenômenos musicais e culturais mais relevantes das últimas décadas na Colômbia. Para isso, são analisadas as práticas musicais e discursivas de grupos de rock pioneiros na Colômbia nos anos sessenta e setenta, com a intenção de encontrar pistas no repertório histórico do rock colombiano para melhor compreender as “novidades” de hoje. Metodologia: isto é feito a partir da revisão de fontes primárias como músicas, capas de discos e imprensa especializada, e a través de entrevistas com músicos colombianos. Originalidade: este texto contribui para preencher uma lacuna nos estudos sobre música popular na Colômbia, em particular sobre a NMC, mostrando conexões entre grupos e músicos de várias gerações, com as quais são controversos os discursos que a apresentam a como um fenômeno absolutamente novo e sem precedentes. Conclusões: após evidenciar conexões entre repertórios musicais de diferentes épocas, argumenta-se que o selo “novo” tem sido uma constante no mercado musical colombiano, frequentemente usado para se referir às “fusões”, que não são de forma alguma exclusivas do NMC. Da mesma forma, são mostradas as influências que grupos dos anos 70, como Banda Nueva e Cascabel, tiveram nos músicos e grupos que formaram a NMC no final do século XX e início do século XXI., Objetivo: proponer una genealogía de las prácticas y los discursos que le han dado forma a la nueva música colombiana, uno de los fenómenos musicales y culturales más relevantes de las últimas décadas en Colombia. Para ello se analizan las prácticas musicales y discursivas de grupos pioneros del rock en Colombia en los años sesenta y setenta, con la intención de encontrar en el repertorio histórico del rock colombiano pistas para entender mejor las “novedades” de hoy. Metodología: lo anterior se realiza a partir de la revisión de fuentes primarias, como canciones, carátulas de discos y prensa especializada y mediante entrevistas a músicos colombianos. Originalidad: este texto contribuye a llenar un vacío en los estudios sobre música popular en Colombia, en particular sobre la NMC, mostrando conexiones entre grupos y músicos de varias generaciones, con lo cual se controvierten los discursos que la presentan como un fenómeno absolutamente novedoso y sin antecedentes. Conclusiones: tras evidenciar conexiones entre repertorios musicales de diferentes épocas, se argumenta que la marcación con la etiqueta “nuevo” ha sido una constante en el mercado musical colombiano, empleada con frecuencia para referirse a las “fusiones”, que de ninguna manera son exclusivas de la NMC. Así mismo, se muestran las influencias de grupos de los setenta, como Banda Nueva y Cascabel, en músicos y grupos que dieron forma a la NMC a finales del siglo XX y principios del XXI.

Artículo será publicado en 2024, Este artículo plantea un acercamiento sociológico al rock atendiendo a los afectos, el cuerpo y las coreografías de género (Foster, 1998). Tomando como objeto de estudio la escucha, y la particular forma de escucha incorporada que es el baile, retomo el enfoque y sensibilidad del análisis precursor de Richard Dyer (1979/2021) sobre las políticas sexuales, materiales y afectivas del rock y del disco, explorando los distintos modos de erotismo que se movilizan en el rock. A partir de un análisis de entrevistas en profundidad con varones adultos acerca de sus experiencias de baile, se muestra como el rock habilita otras posibilidades eróticas y políticas, además del despliegue de falocentrismo y masculinidad hegemónica, señalada por Dyer, de ese “cock rock” descrito por Simon Frith y Angela McRobbie (1978)., Grupo de Investigación Sociología Ordinaria 962092, Depto. de Sociología Aplicada, Fac. de Ciencias Políticas y Sociología, TRUE, inpress

The works carried out in the field of musical composition and production are mostly carried out with a large budget and expensive equipment, both in hardware and software. The object of study of this work was based on the review and analysis of musical genres that influenced the composition of this work, in the same way, Greek scales and modes used in the project have been analyzed for the creation of harmonies, melodies, rhythms and solos, in this case, electric guitar. This project was based on objectives, such as the investigation of the aforementioned genres, scales and modes. The methodology and techniques that were applied include the revision and bibliographical compilation of antecedents in the use of music production in a home studio and the use of digital tools in an optimal way, the investigation of professional opinions and the use of equipment in a basic environment or limited for high-quality recording. The results obtained in this work mean a recognition of the alternative of using digital tools for musical production and their application in a project of creation and production of record material in the fusion genre (rock, jazz, funk). Thus, this project determines the feasibility of using software in a musical production that maintains sound quality, in the face of potential budget and time obstacles.

We have previously shown that the prostaglandin E2/Ptger4b receptor system is involved in ovulation in teleost medaka and induces intracellular actin cytoskeleton rearrangement in the granulosa cells of preovulatory follicles. In this study, we investigated the signaling pathways through which prostaglandin E2 induces a change in the actin cytoskeleton. Treating preovulatory follicles with GW627368X (Ptger4b antagonist), a Rho inhibitor, or Y-27632 [Rho-associated protein kinase (Rock) inhibitor] inhibited not only in vitro follicle ovulation but also intracellular actin cytoskeleton rearrangement. Active Rhoa-c and Rock1 were detected in follicles immediately before ovulation. GW627368X also inhibited Rhoa-c activation and cytoskeleton rearrangement. PGE2-induced actin cytoskeleton rearrangement was not observed in the Ptger4b-, Rhoa-c-, or Rock1-deficient OLHNI-2 cells. These results indicate that the PGE2/Ptger4b pathway regulates intracellular actin cytoskeleton rearrangement via the Rho/Rock pathway in the granulosa cells of preovulatory follicles during medaka ovulation.

Das mechanische Verhalten von geschichteten quasi-spröden Materialien, wie beispielsweise Gestein oder 3D gedrucktem Beton, ist durch irreversible Verformungen, verfestigendes Materialverhalten im Vorbruchbereich sowie Entfestigung, begleitet durch eine Reduktion der Materialsteifigkeit aufgrund von Schädigungsprozessen im Nachbruchbereich, gekennzeichnet. Darüber hinaus zeigt das Materialverhalten von geschichteten quasi-spröden Materialien eine starke Abhängigkeit von der Belastungsrichtung bezogen auf die Orientierung der Schichtungsebenen. Ziel der vorliegenden Arbeit ist die mathematische Beschreibung der konstitutiven Beziehungen von anisotropen quasi-spröden Materialien. Zu diesem Zweck ist die Arbeit in zwei Teile gegliedert. Der erste Teil befasst sich mit der Entwicklung eines konstitutiven Modells für geschichtetes intaktes Gestein und Gebirge. Basierend auf einer kritischen Beurteilung gängiger Modellierungsansätze zur Berücksichtigung transversaler Isotropie in elasto-plastischen Modellen wird das isotrope Rock Damage Plasticity (RDP) Modell von Unteregger u. a. (2015) auf transversal isotropes Materialverhalten erweitert. Um netzunabhängige Ergebnisse in FE-Simulationen zu erhalten, wird das entfestigende Materialverhalten durch eine über-nichtlokale implizite Gradientenerweiterung nach Schreter u. a. (2018b) regularisiert. Das erweiterte Modell, bezeichnet als TI-RDP Modell, wird mittels eines impliziten Integrationsalgorithmus in die Material Modelling Toolbox Marmot (Neuner u. a. (2021)) implementiert. Das TI-RDP Modell wird durch Integrationspunkt Simulationen sowie 3D FE-Simulationen von triaxialen Druckversuchen von Niandou u. a. (1997) an Tournemire Schiefer kalibriert und validiert. Dabei werden verschiedene Neigungswinkel der Schichtungsebenen in Bezug auf die Belastungsrichtung sowie unterschiedliche Umschnürungsdrücke berücksichtigt. Um den Einfluss der Orientierung von geschichtetem Gebirge auf den Vortrieb tiefliegender Tunnel zu untersuch, The mechanical behavior of anisotropic quasi-brittle materials, such as layered rock or 3D printed concrete, is characterized by irreversible deformations, pressure-dependent hardening plasticity in the pre-peak regime, and strain softening in the post-peak regime accompanied by degradation of the material stiffness due to damaging processes. In addition, the mechanical response of layered quasi-brittle materials depends on the loading direction with respect to the orientation of the layering. The aim of the present thesis is the development of a mathematical constitutive framework suitable for modeling such anisotropic quasi-brittle materials. To achieve this objective, the mechanical behavior of two distinct material types is analyzed. Hence, the thesis is divided into two major parts. The first part deals with the development of a constitutive model for layered intact rock and rock mass and its application to finite element simulations of deep tunneling. Based on a critical review of popular modeling approaches for considering transversely isotropic behavior in elasto-plastic models, the isotropic rock damage plasticity (RDP) model by Unteregger et al. (2015) is extended to inherent transversely isotropic material behavior. For obtaining mesh-insensitive results in finite element simulations, the softening behavior is regularized by an over-nonlocal implicit gradient-enhancement following Schreter et al. (2018b). The novel model, denoted as TI-RDP model, is implemented on the basis of an implicit time integration algorithm within the framework of the Material Modelling Toolbox Marmot (Neuner et al. (2021)). The TI-RDP model is calibrated and validated by integration point simulations and 3D finite element simulations of triaxial compression tests on Tournemire Shale by Niandou et al. (1997), performed for different inclination angles of the stratification planes with respect to the direction of axial loading and different confining pressures. For investigating th, Abweichender Titel laut Übersetzung der Verfasserin/des Verfassers, Dissertation Universität Innsbruck 2023

This thesis will attempt to observe the shift from the religious confession Bob Dylan was born in, Judaism, to Christianity in the albums the artist released between 1979 and 1983. This includes the influence of the cultural climate in the United States of America, and the elements of the musical genres of folk, rock and gospel Dylan turns to., Tato práce se pokusí o prozkoumání přesunu Boba Dylana z rozeného židovství ke křesťanství v jeho albech vydaných mezi lety 1979 a 1983. S tím souvisí vliv kulturního klima Spojených Států Amerických a dále promítající se vlastnosti hudebních žánrů folku, rocku a gospelu., Fakulta filozofická, Studentka představila téma své práce. Její prezentace nebyla příliš koherentní a působila nepřipraveně. Na podněty z posudků zareagovala a byla schopná uvést příklady z vlastní práce z primárního textu. Její projev vyžadoval časté kladení dotazů a postrádal jistou samostatnost., Dokončená práce s úspěšnou obhajobou

Cluster analysis is a data mining technique used to group data based on the similarity of attributes of object data. One of the problems that are often encountered in cluster analysis is data with a mixed categorical and numerical scale. The clustering stage for mixed data using the ensemble ROCK (Robust Clustering using links) method is carried out by combining clustering outputs from categorical and numeric scale data. The method used for categorical data is the ROCK method and the method used for numerical data is the Hierarchical Agglomerative method. The best clustering method is determined based on the criteria for the ratio between the standard deviations within the group (SW) and the smallest standard deviation between groups (SB). Based on 24 observation objects in the regencies and cities of the Province of South Sulawesi, the ROCK ensemble method with a value of 0.1 produces three clusters with a ratio value of 2,27 x10-16 based on the combination of the output results of the ROCK method and the Hierarchical Agglomerative method

The present work investigates the creation of musical themes based on the musicalization of biblical texts and their adaptation to the Rock musical genre for an instrumental format of Rhythmic Section that will be executed and interpreted in the Sunday liturgy of the Calvary Chapel Church of the city from Cuenca. During its development, we are framed in highlighting the importance of creating new liturgical music in accordance with current musical manifestations. And for this we take biblical texts with which we create rhythmic-melodic motifs and we use composition and arrangement techniques applied to melody and harmony. All this under the influence of the Rock genre.

An automated, fixed-location, continuous time-lapse camera system was developed to analyze the existence of rockfall precursory movements and quantify volume changes after detachments. It was implemented to monitor the basaltic formation on which Castellfollit de la Roca village is built. Due to the geometrical conditions of the area, the camera system consists of three digital cameras managed by a control unit that contains a Raspberry Pi 4 microprocessor. Images taken every day are sent to a server for processing. A workflow has been developed to work with a set of images with an irregular time interval to detect precursor movement. The first step consists of matching the images with a reference master image and filtering the vegetation to improve the process using a mask obtained by a green leaf index (GLI) index. Then, the adjusted images are used for a forward-backward correlation process carried out to detect movements. If movement is detected, a 3D model is built using structure from motion (SfM) to quantify the movements. The system has been working since September 2021. During this period, movements from 0.01 to 0.5 m and several rockfalls of a small volume have been detected, Peer Reviewed, Objectius de Desenvolupament Sostenible::13 - Acció per al Clima, Objectius de Desenvolupament Sostenible::13 - Acció per al Clima::13.1 - Enfortir la resiliència i la capacitat d’adaptació als riscos relacionats amb el clima i els desastres naturals a tots els països, Postprint (published version)

During Tunnel Boring Machine (TBM) excavation in hard rock, it is possible to encounter at the excavation zone, weak areas composed by weathered rocks, which need to be improved. In this paper, a laboratory study about a grouted cataclasite fragmented rock and its mechanical behavior is reported. Two non-conventional binders, that is, a colloidal silica with 15% SiO2content and very low viscosity and a two-component low-viscosity hydrophilic acrylic resin (both about 3 mPas) were tested in laboratory to evaluate their performance improving the cataclasite. Permeation tests in a column of 0.5 m height and 0.05 m diameter were performed. The cataclasite was placed loose in the column, with a porosity n = 0.6 and the two products were injected with a pressure between 3.5 and 4 bars. After that, multi-stage triaxial CU on single samples for each grouted product with 100 mm height and 50 mm diameter. Strain rate of 0.3 mm/min was applied. Results show that the binders are valid products to improve the mechanical properties of cataclasite.

En la década de 1980 se originó el punk debido a un contexto social, político y económico característico, marcado por el desasosiego y la desesperanza. Esto llevó a que parte de la juventud vasca de los ochenta se reconociese con la identidad punk y todo lo que ella conllevaba como, por ejemplo, la ideología anarquista. Este estudio se plantea si los textos audiovisuales dedicados al punk han reflejado de forma fiel lo que significó esta música a nivel político, ideológico, social y cultural. Para esto, se aplica un análisis ideológico y un análisis crítico del discurso a la primera trilogía sobre el punk de Kikol Grau., Punk originated in the 1980s due to a characteristic social, political and economic context, marked by unrest and hopelessness. This led the Basque youth of the eighties to recognise themselves with the punk identity and all that it entailed, such as, for example, anarchist ideology. This study asks whether audiovisual texts dedicated to punk have faithfully reflected what this music meant on a political, ideological, social and cultural level. For this purpose, an ideological analysis and a critical discourse analysis are applied to Kikol Grau’s first trilogy on punk.

Characterization of fluid–rock interactions is essential for a broad range of subsurface applications such as understanding fluid flow in porous medium and enhanced oil recovery predictions. Enhanced oil recovery (EOR) is crucial in oil and gas production operations, it entails injecting fluids into the reservoir to enhance productivity. When fluids are injected, interactions occur between the injected fluids and the reservoir rock/fluids; and the outcomes of fluid–rock interactions critically impact the fluid flow in porous medium and the associated oil recovery. Furthermore, the associated changes in reservoir properties (porosity, permeability etc.) and flow behavior (i.e. wettability alteration and relative permeability changes) demonstrate variability at a range of scales. Thus, it is of great importance to understand these interactions at multiple scales and their ensuing implications on EOR. This study therefore provides a comprehensive review of the types of fluid–rock interactions in both carbonate and sandstone reservoirs. Fluid–rock interactions quantification methods, their applicability and principle of measurements were summarized. The implications of fluid–rock​ interactions were extensively discussed. Finally, we identified and highlighted some research gaps and provided recommendations for future research directions. The findings of this review show that despite numerous studies on fluid–rock interactions such as adsorption, dissolution/precipitation, clay swelling/fines migration and wetting characteristics in porous media involving EOR fluids, the exact mechanism of action of these fluids during EOR applications in rock/oil/brine system, is still not fully understood. The extent and implications of these fluid–rock interactions on EOR depends on several factors/parameters. Such factors include the injected fluid type and chemical composition, rock type and mineralogical composition, brine pH, salinity and composition. Moreover, the review shows th

This work proposes the methodology to obtain a correlation between the particle size of the rock material and the point load test index (Is 50), in order to characterize the materials, present in mining projects in terms of resistance. For a correct development of mining activities, both open pit (quarries) and underground (mines), it is important to determine the compressive strength of the rocks, since, through it, geomechanical classifications are obtained, and thus calculate safety factors to define stabilization and/or fortification systems for mining operations. This work was developed on the basis of samples from a geological formation and subsequent preparation of specimens, then they were subjected to physical tests, which can be carried out without problem in the field, and finally, the respective relationships were obtained. The results are encouraging and the equations are proposed to characterize the rock and achieve the proposed objective. Keywords: Rock, Crushing, Classification, Compression., Este trabajo propone la metodología para obtener una correlación entre el tamaño de partículas del material rocoso y el índice de carga puntual (Is 50), con la finalidad de caracterizar los materiales presentes en proyectos mineros en términos de resistencia. Para un correcto desarrollo de actividades mineras, tanto a cielo abierto (canteras) como subterráneo (minas), es importante determinar la resistencia a compresión de las rocas, ya que, mediante la misma, se obtiene clasificaciones geomecánicas, y así calcular factores de seguridad para definir sistemas de estabilización y/o fortificación de las labores mineras. Este trabajo se lo desarrolló sobre una base de muestras de una formación geológica y posterior elaboración de probetas, luego, se las sometió a ensayos físicos, los cuales pueden ejecutarse sin problema en campo y finalmente se obtuvieron las relaciones respectivas. Los resultados son alentadores y se proponen las ecuaciones para caracterizar la roca y conseguir el objetivo propuesto. Palabras Clave: Roca, Trituración, Clasificación, Compresión.

This chapter aims to show how learning popular music involves often- overlooked processes of learning to become a band, it discusses implications for educators and calls for more research. Based in Sweden, a small country with relatively large impact on popular music, the author currently sets out to answer that call.

This study aimed to evaluate the radiological hazards of uranium (238U), thorium (232Th), and potassium (40K) in microgranitic rocks from the southeastern part of Wadi Baroud, a northeastern desert of Egypt. The activity concentrations of the measured radionuclides were determined by using a gamma-ray spectrometer (NaI-Tl-activated detector). The mean (238U), (232Th), and (40K) concentrations in the studied rocks were found to be 3680.3, 3635.2, and 822.76 Bq/kg, respectively. The contents in these rocks were elevated, reaching up to 6.3 wt%. This indicated the alkaline nature of these rocks. The high ratios of Th/U in the mineralized rocks could be related to late magmatic mineralization, suggesting the ascent of late magmatic fluids through weak planes such as faults and the contact of these rocks with older granites. The present data were higher than those of the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) guideline limits. All the radiological hazard results indicated high human health risks. This confirmed that this area is not radiologically safe, and care must be taken when working in this area. This study showed that the area under investigation had high U content suitable for uranium extraction that could be used in the nuclear fuel cycle. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Målet med mitt arbete har varit att utveckla min förmåga att analysera musik och sedan applicera min analys på mitt eget musicerande, närmare bestämt mitt basspel. Genom att analysera Chris Wolstenholmes (basisten i mitt favoritband Muse) basspel ur ett melodiskt, harmoniskt och rytmiskt perspektiv samt undersöka hur han använder effektpedaler har jag tagit ut de sex aspekterna som jag anser utmärker hans spelstil mest. Jag har sedan applicerat dessa aspekter på tre låtar av tre olika band och arrangerat om basgången i deras låtar i hopp om att de ska låta mer likt Muses basgångar. Jag hoppas att detta arbete kan inspirera andra musiker till att fundera över och analysera musik de tycker om och samtidigt sträva efter att utveckla deras analytiska förmåga. Jag hoppas även att det kan inspirera andra basister att reflektera över rollen som basist och hur man kan ta mer plats i en rockensemble.

In this thesis, data clustering techniques are applied to a competence database from the company Combitech. The goal of the clustering is to connect co-workers with similar competencies and competence areas in order to enable more skill sharing. This is accomplished by implementing and evaluating three clustering algorithms, k-modes, DBSCAN, and ROCK. The clustering algorithms are fine-tuned with the use of three internal validity indices, the Dunn, Silhouette, and Davies-Bouldin score. Finally, a form regarding the clustering of the three algorithms is sent out to the co-workers, which the clustering is based on, in order to obtain external validation by calculating the clustering accuracy. The results from the internal validity indices show that ROCK and DBSCAN create the most separated and dense clusters. The results from the form show that ROCK is the most accurate of the three algorithms, with an accuracy of 94%, followed by k-modes at 58% and DBSCAN at 40% accuracy. However, the visualization of the clusters shows that both ROCK and DBSCAN create one very big cluster, which is not desirable. This was not the case for k-modes, where the clusters are more evenly sized while still being fairly well-separated. In general, the results show that it is possible to use data clustering techniques to connect people with similar competencies and that the predicted clusters agree fairly well with the gold-standard data from the co-workers. However, the results are very dependent on the choice of algorithm and parametric values, and thus have to be chosen carefully.

Vanishingly little in the way of scholarly work has been done on the concept of “indie,” a ubiquitous (albeit nebulous) term used across the world to describe and categorize music and film. But unlike other means of artistic classification, “indie” does not easily correspond to any singular style—rather, indie practitioners long sought to avoid “style” as a manner through which they might be rendered disarmingly legible and demystified. My dissertation, Indie: Transformations of “Independent” Music and Film, 1959-2021, rigorously inspects crucial periods along a timeline ranging from this movement’s imagined, economically “independent” origins in the 1950s, to indie’s eventual transformation into a musical/filmic genre consumed by its stylistic codification in the 2000s. This dissertation accomplishes this by crafting what historian Hayden White describes as an “ironic” historical narrative, as well as by supplementing this account with a blend of other research methodologies such as critical analysis, socio-economic analysis, oral histories, and archival work.My dissertation operates on the following conceit: from the 1980s through the early 2000s, eschewing signifiers rooted in stylistic deviation from the norm, “indie” practitioners primarily defined themselves by their structural relationship to dominant (or, put colloquially, “mainstream”) culture, thriving in a shadowy space between the amateur and the professional. But the indie phenomenon and its systems of subcultural capital were subsumed by official culture in the twenty-first century when they came to be defined by the rapid growth of indie’s once-subversive “twee” branch, in fact becoming more acceptable to the mainstream than “official culture” itself.

The aim of this work is to establish a relation between the size, afterwards of process of fragmentation of the materials, by means of the determination of the D80 and the index of punctual load Is (50), for of this form characterize the rock in terms of resistance and avoid the sending of samples permanently to laboratories. It initiated the proposal with the taking of samples of rock of a specific sector designated Cojitambo, in the province of Cañar (Ecuador), in which it emerges an andesite of fine grain. These samples were taken preventing them from being weathered, so that they are the coolest possible. In a second stage, test tubes were made with the samples, 60 in total, 30 with approximate dimensions of 5 cm x 5 cm x 5 cm., which were to the process of split, that is to say for the determination of the Is (50), and 30 test tubes of roughly 5 cm x 5 cm x 10 cm., which subjected to the process of trituration and classification. In a final stage has determined an existent relation between the D80 and the Is (50), which allows to establish that, if the rocks or samples taken in the field are inside this relation, determine his resistance, or contrary case are sent the same to laboratory for his assessment. The proposal presents an equation for the determination of the resistance to the unconfined compressive strength of the rock of an approximate way and of easy interpretation, attaining that in a mining project exist a significant saving in economic terms and of time., El objetivo de este trabajo es establecer una relación entre el tamaño, luego del proceso de fragmentación de los materiales, mediante la determinación del D80 y el índice de carga puntual Is (50), para de esta forma caracterizar la roca en términos de resistencia y evitar el envío de muestras permanentemente a laboratorios. Se inició la propuesta con la toma de muestras de roca de un sector específico denominado Cojitambo, en la provincia de Cañar (Ecuador), en el que aflora una andesita de grano fino. Estas muestras fueron tomadas evitando que sean meteorizadas, para que sean lo más frescas posible. En una segunda etapa se elaboraron probetas con las muestras, 60 en total, 30 con dimensiones aproximadas de 5 cm x 5 cm x 5 cm., las cuales fueron al proceso de ruptura, es decir para la determinación del Is (50), y 30 probetas de aproximadamente 5 cm x 5 cm x 10 cm., las cuales se sometieron al proceso de trituración y clasificación. En una etapa final se ha determinado una relación existente entre el D80 y el Is (50), la cual permite establecer que, si las rocas o muestras tomadas en el campo están dentro de esta relación, se determine su resistencia, o caso contrario sean enviadas las mismas al laboratorio para su valoración. La propuesta presenta una ecuación para la determinación de la resistencia a la compresión simple de la roca de una manera aproximada y de fácil interpretación, logrando que en un proyecto minero exista un ahorro significativo en términos económicos y de tiempo.

När det finns fler digitala emuleringar av förstärkare än någonsin tidigare, behövs verkligen en analog förstärkare, eller är de digitala emuleringarna fortfarande undermåliga? Denna studie har med hjälp av intervjuer undersökt hur stor kulturell tyngd den analoga förstärkaren har inom rock & metal, och hur dess producenter ser på framtiden med de digitala emuleringarna. Tidigare forskning påvisar att en genre består av så mycket mer än bara musiken utan även materiella ting så som till exempel kläder, elektronik, till och med politiska åsikter ibland. Med fyra rock & metalproducenter som informanter har vissa slutsatser skapats och jämförts med den tidigare forskningen. Det tydligaste resultatet är att alla informanter har en positiv inställning till analoga förstärkare, speciellt gällande dess ljudkvalitéer, medan det rådde olika åsikter kring de digitala emuleringarna. Den största fördelen som sågs med digitala emuleringarna var dess smidighet. Däremot så var det tre av informanterna som tidigare använt digitala emuleringar i skarpa produktioner, trots att två av de tre föredrog analoga förstärkare på grund av dess ljudkvalitéer. Hur långt kvar de digitala emuleringarna har att gå innan de blir likvärdiga de analoga förstärkarna går fortfarande inte riktigt att svara på, men när de blir lättare att mixa in, de får mer artefakter och ett mer organiskt ljud bör informanterna i denna studievara nöjda.

Our previous studies demonstrated that traumatic brain injury (TBI) and ventricular administration of thrombin caused hippocampal neuron loss and cognitive dysfunction via activation of Src family kinases (SFKs). Based on SFK localization in brain, we hypothesized SFK subtypes Fyn and c-Src, as well as SFK downstream molecule Rho-associated protein kinase (ROCK), contribute to cell death and cognitive dysfunction after TBI. We administered nanoparticle wrapped small interfering RNA (siRNA)-Fyn and siRNA-c-Src, or ROCK inhibitor Y-27632 to adult rats subjected to moderate lateral fluid percussion (LFP)-induced TBI. Spatial memory function was assessed from 12 to 16 days, and NeuN stained hippocampal neurons were assessed 16 days after TBI. The combination of siRNA-Fyn and siRNA-c-Src, but neither alone, prevented hippocampal neuron loss and spatial memory deficits after TBI. The ROCK inhibitor Y-27632 also prevented hippocampal neuronal loss and spatial memory deficits after TBI. The data suggest that the combined actions of three kinases (Fyn, c-Src, ROCK) mediate hippocampal neuronal cell death and spatial memory deficits produced by LFP-TBI, and that inhibiting this pathway prevents the TBI-induced cell death and memory deficits.

Geological and geotechnical studies are a critical component of most projects, and it has a significant impact on the economy, project timelines, and subsequent project design. Today, the development of GEOBIM eases this analysis, thus saving costs, speeding up processes and avoiding risks. The recently developed Tyrens algorithm generates 3D bedrock surfaces using kriging. Com- ´ mercial programs (such as ArcGIS and Civil 3D which are the programs used) can generate them as well. So, this project aims to compare how well Tyrens’ algorithm creates surfaces ´ in contrast with commercial programs. 3D models of the bedrock have been developed using different interpolation methods. Furthermore, true bedrock data is available; they had to make an excavation of an area inside the model boundaries, i. e. directly the real bedrock could be measured. So, a thorough and complete scrupulous analysis is performed., Outgoing

The uniaxial compressive strength (UCS) and Youngs’ modulus (E) of rock are important parameters required during design and stability analysis of mining and geotechnical structures. There is correlation between UCS and E of rock, and the proper estimation of such correlation is important for reliable mining engineering analysis. However, limited quantity of UCS and E data pairs often available for most mining project sites makes it difficult to estimate reliable correlation between UCS and E. This study addresses the difficulty by developing Bayesian approach for characterizing the site-specific joint probability distribution of UCS and E that is data-driven, without the use of an empirical model. A major novelty of the proposed approach over previous studies is that it does not require selection or integration of a regression model as input to characterize the correlation between UCS and E. The likelihood function in the proposed approach is directly constructed from only limited UCS and E data pairs and their prior information as inputs. The Bayesian approach is incorporated into Markov Chain Monte Carlo (MCMC) simulation to generate samples pairs of UCS and E, which are then analysed for marginal statistics, marginal probability distribution, joint probability distribution and correlation. Real data of UCS and E obtained from uniaxial compression tests on migmatites at the Sanandaj-Sirjan zone in Iran is used to demonstrate the approach. The marginal statistics, distributions and correlation coefficient from the proposed approach is consistent with those of the measured data from the adopted site. This indicates that the approach is effective in characterizing the correlation between UCS and E, and can be used when there is need for such characterization at a site with limited data. Simulated data are also used in the approach and the results show that the quality and quantity of information available as inputs play an important role in the efficiency of

Based on the review of a wide range of literature, this paper finds that: (1) the average specific surface energy of various single crystals is only 0.8 J/m². (2) The average specific fracture energy of the rocks with a pre-crack under static cleavage tests is 4.6 J/m². (3) The average specific fracture energy of the rocks with a pre-cut notch but with no pre-crack under static tensile fracture (mode I) tests is 4.6 J/m². (4) The average specific fracture energies of regular rock specimens with neither pre-made crack nor pre-cut notch are 26.6, 13.9 and 25.7 J/m² under uniaxial compression, tension and shear tests, respectively. (5) The average specific fracture energy of irregular single quartz particles under uniaxial compression is 13.8 J/m². (6) The average specific fracture energy of particle beds under drop weight tests is 74.0 J/m². (7) The average specific fracture energy of multi-particles in milling tests is 72.5 J/m². (8) The average specific energy of rocks in percussive drilling is 399 J/m³, that in full-scale cutting is 131 J/m³, and that in rotary drilling is 157 J/m³. (9) The average energy efficiency of milling is only 1.10%. (10) The accurate measurements of specific fracture energy in blasting are too few to draw reliable conclusions. In the last part of the paper, the effects of inter-granular displacement, loading rate, confining pressure, surface area measurement, premade crack, attrition and thermal energy on the specific fracture energy of rock are discussed.

The text discusses the relationship between the Mestre Dezinho Handicraft Center and rock festivals, held in the city of Teresina, capital of Piauí, Brazil, in the period between the 1980s and 1990s. Configured as one of the main cultural spaces in the city, in the time frame of the research. It is based on imagery, hemerographic sources and written memorialistic records, such as poems and reports on the history of rock music in the city. It follows the theoretical reflections of Sandra Pesavento (2007), to discuss the issues of the city; Lucilia Delgado (2006), Jacques Le Goff (2003), Ricœur (2007), to discuss issues of history and memory; and Roger Chartier (2002), to discuss representation issues. The work pointed out the rock festivals, held throughout the city, especially the event that took place at the Craft Center, as a practice that highlights the interaction between people and spaces and that promotes the emergence of the urban ethos, configuring the city not only for its material constructions, but mainly due to the way of life of the human beings that inhabit it., O texto discute as relações da Central de Artesanato Mestre Dezinho com os festivais de rock, realizados na cidade de Teresina, capital do Piauí, nas décadas de 1980 e 1990. Aponta as múltiplas modalidades artísticas, desenvolvidas nesse ambiente, que o configuraram como um dos principais espaços culturais da urbe, no recorte temporal da pesquisa. Fundamenta-se em fontes imagéticas, hemerográficas e registros memorialísticos escritos, tais como poemas e relatos sobre a história do rock na cidade. Segue as reflexões teóricas de Sandra Pesavento (2007), para discutir as questões de cidade; Lucilia Delgado (2006), Jacques Le Goff (2003), Ricœur (2007), para discutir as questões de história e memória; e Roger Chartier (2002), para discutir as questões de representação. O trabalho apontou os festivais de rock, realizados por toda a cidade, principalmente o evento ocorrido na Central de Artesanato, como uma prática que evidencia a interação entre gentes e espaços e que promove a emergência do ethos urbano, configurando a cidade não apenas por suas construções materiais, mas, principalmente, pelo modo de viver dos seres humanos que nela habitam.

The paper presents uniaxial compressive strength test according to SRPS EN 1926. Uniaxial compressive strength test was performed on 12 identical cube-shaped specimen’s dimensions 70 mm x 70 mm x 70 mm, which are made of sandstone. Samples were brought form Laz tunnel and were divided into two groups of six samples. First group of samples consists of 6 samples tested for uniaxial compressive strength. Second group of samples consists of 6 samples exposed to standard fire test according to SRPS EN 1363-1, with the intention to test uniaxial compressive strength after standard fire test. The aim of this study was to examine the uniaxial compressive strength of the rock, before and after standard fire test on the rock mass. The paper presents the strengths of the specimens tested before and after standard fire test.

Since the middle of the second decade of this century, artists and specialized journalists in music, as well as professionals from the music industry business, have com-mented on the death of rock music, blaming a whole range of business, socio-cultural or musical factors. Consequently, and perhaps with an inherent curiosity of a music lover, someone might ask: what are the reasons used to argue such a claim? What are the impli-cations? This research paper initially seeks to compile and bring to light the fundamental explanations that are used to discuss the death of rock as a musical genre and raise some questions and hypotheses that respond to this problem., Desde meados da segunda década deste século, artistas e jornalistas especia-lizados em música, além de profissionais da indústria da música, comentam a morte do rock, culpando toda uma gama de fatores empresariais, socioculturais ou musicais. Con-sequentemente, e talvez com uma curiosidade inerente a um amante da música, alguém poderia perguntar: quais são as razões usadas para argumentar tal afirmação? Quais são as implicações? Este artigo inicialmente procura compilar e trazer à luz as explicações fun-damentais que são usadas para discutir a morte do rock como gênero musical e levantar algumas questões e hipóteses que respondem a esse problema., Desde mediados de la segunda década de este siglo, artistas, periodistas especializados, así como también profesionales del negocio de la industria musical, han comentado sobre la muerte de la música rock, responsabilizando a toda una serie de factores de negocio, socioculturales o musicales. Consecuentemente, y tal vez con una curiosidad inherente de un melómano alguien podría preguntarse ¿Cuáles son las razones que se esgrimen para argumentar semejante afirmación? ¿Cuáles son las implicancias? Este trabajo de investigación busca inicialmente recopilar y sacar a luz las explicaciones fundamentales que se emplean para debatir la muerte del rock como género musical y plantear algunas preguntas e hipótesis que den respuesta a esta problemática.