Le Petit Trégor (29)

Cette année, nous avons poursuivi la prospection du secteur de Morlaix en investissant davantage une zone située entre deux cours d’eau, le Jarlot et le Douron, à l’est, en somme, des sites importants déjà repérés par l’équipe de Pierre Gouletquer. Grâce à des subventions attribuées par l’État et le Département du Finistère, nous avons organisé, en plus des prospections individuelles, un stage de terrain et sillonné ainsi, avec l’aide d’une vingtaine de personnes, près de 150 parcelles. Les r..

Chapter 7 • Integrated seismic study - Focus on “Cigéo”, the French geological repository project

In the geophysics of oil exploration and reservoir studies, the surface seismic method is the most commonly used method to obtain a subsurface model in 2 or 3 dimensions. This method plays an increasingly important role in soil investigations for geotechnical, hydrogeological and site characterization studies regarding seismic hazard issues. The goal of this book is to provide a practical guide, using examples from the field, to the application of seismic methods to surface imaging. After reviewing the current state of knowledge in seismic wave propagation, refraction and reflection seismic methods, the book aims to describe how seismic tomography and fullwave form inversion methods can be used to obtain seismic images of the subsurface. Through various synthetic and field examples, the book highlights the benefit of combining different sets of data: refracted waves with reflected waves, and body waves with surface waves. With field data targeting shallow structures, it shows how more accurate geophysical models can be obtained by using the proposed hybrid methods. Finally, it shows how the integration of seismic data (3D survey and VSP), logging data (acoustic logging) and core measurements, combined with a succession of specific and advanced processing techniques, enables the development of a 3D high resolution geological model in depth. In addition to these examples, the authors provide readers with guidelines to carry out these operations, in terms of acquisition, as well as processing and interpretation. In each chapter, the reader will find theoretical concepts, practical rules and, above all, actual application examples. For this reason, the book can be used as a text to accompany course lectures or continuing education seminars. This book aims to promote the exchange of information among geologists, geophysicists, and engineers in geotechnical fields

Guest Editors\u27 Introduction

In this introduction, the guest editors of this special issue share their call to action in support of Black crossover youth

Modifying Haitian Images in the Miami Media from 1979 through 2010 in Advent of Social Media

This study analyzes the racialization of the immigrant Other in the American media by exploring the images of Haitians deployed in three different newspapers—Miami Herald, Miami Times, and Haiti-Observateur—that are directed to racially/ethnically distinct readers. I examine the positive and negative images of Haitians in these papers and trace their development over time. Specifically, I examine the reportage of Haitians over three events: the boatlift crisis of 1979, the AIDS epidemic crisis of 1983, and the earthquake of 2010. This study asks, is there an existing hegemonic view of Haitians in which race is a primary signifier in the American media? My study applies the concept of controlling images, the idea that racialized images are commonly deployed in the American media, to shed light on the production and reproduction of racism toward Haitians. This dissertation therefore sets out to investigate the presence, absence, and degree of racialized illustrations of Haitians among three newspapers in a city where many Haitian immigrants reside. My analysis reveals that before the 2010 earthquake, the controlling images of Haitians changed from negative to positive. Furthermore, the newspapers constructed and modified the controlling images according to racialized and political journalistic practices, especially after the earthquake because of social media. During the 1979 boatlift crisis and the 1983 AIDS epidemic, the mainstream newspaper, the Herald, offered more negative images of Haitians than the black newspaper, the Times, and the Haitian newspaper, Observateur. However, the Observateur mostly operated outside the racial framework of the American newspapers during these periods preceding the earthquake. After the 2010 earthquake, in an era of social media, the Herald changed its images of Haitians. The mainstream newspaper offered more positive images of this group than the other newspapers. During this time, the black newspaper reflected a reduced interest in race in the coverage of the Haiti disaster when compared to coverage of earlier crises. The Haitian newspaper was more closely engaged with the earthquake disaster, more than its coverage of the previous crises, though less engaged than the American newspapers

Nihilistiske visjoner

Oppgaven ser nærmere på nihilisme som filosofisk fenomen og undersøker de destruktive så vel som de konstruktive siden ved nihilismen. Med utgangspunkt i den samme nihilistiske visjonen - verdens totale meningsløshet - etablerer Nietzsche sin perspektivisme, hvilket er en systematisert og rasjonell bearbeidelse av denne visjonen, mens Sartres litterær manifestasjon i form romanen Kvalmen, går i dybden på de umiddelbare emosjonelle ettervirkninger av den samme visjonen. Senere etablerer Sartre den situasjonistiske eksistensialismen som, i likhet med Nietzsches perspektivisme, er en mer distansert, rasjonell og systematisert bearbeidelse av den nihilistiske visjonens konstruktive og frihetlige potensiale.Master i Allmenn litteraturvitenskapMAHF-LITTALLV35

Douleurs et travail : aider le patient à garder un emploi

Introduction.— A significant part of the workers suffer from musculoskeletal pain (back pain,upper limb). Some of them are at risk to ose their job due to their health condition. Objective. — The aim of the article is to describe synthetically what actors and measure can be used in order to help a patient keep his/her job in spite of the pain. Results.— First place measures include a visit with the occupational physician before work resumption, part-time return to work and workplace accommodation.Second place measures require that a professional project is built by the patient supported by a knowledgeable person. These measures depend on the funding agency.They are devoted to compensate the work disability situation, and/or to provide the training required by the patient’s project. Discussion and conclusion. — Work disability prevention faces many challenges due to barriers between the stakeholders, scattering of the knowledge and the complexity of legislative issues.However, it remains possible provided the patient is committed and supported by a case manager in charge of coordinating the information and the stakeholders. Confidence and collaboration are key issues in the process.

Impact of basin burial and exhumation on Jurassic carbonates diagenesis on both sides of a thick clay barrier (Paris Basin, NE France).

27 pagesInternational audienceSeveral diagenetic models have been proposed for Middle and Upper Jurassic carbonates of the eastern Paris Basin. The paragenetic sequences are compared in both aquifers to propose a diagenetic model for the Middle and Late Jurassic deposits as a whole. Petrographic (optical and cathodoluminescence microscopy), structural (fracture orientations) and geochemical (δ18O, δ13C, REE) studies were conducted to characterize diagenetic cements, with a focus on blocky calcite cements, and their connection with fracturation events. Four generations of blocky calcite (Cal1-Cal4) are identified. Cal1 and Cal2 are widespread in the dominantly grain-supported facies of the Middle Jurassic limestones (about 90% of the cementation), whereas they are limited in the Oxfordian because grain-supported facies are restricted to certain stratigraphic levels. Cal1 and Cal2 blocky spars precipitated during burial in a reducing environment from mixed marine-meteoric waters and/or buffered meteoric waters. The meteoric waters probably entered aquifers during the Late Cimmerian (Jurassic/Cretaceous boundary) and Late Aptian (Early Cretaceous) unconformities. The amount of Cal2 cement is thought to be linked to the intensity of burial pressure dissolution, which in turn was partly controlled by the clay content of the host rocks. Cal3 and Cal4 are associated with telogenetic fracturing phases. The succession of Cal3 and Cal4 calcite relates to the transition towards oxidizing conditions during an opening of the system to meteoric waters at higher water/rock ratios. These meteoric fluids circulated along Pyrenean, Oligocene and Alpine fractures and generated both dissolution and subsequent cementation in Oxfordian vugs in mud-supported facies and in poorly stylolitized grainstones. However, these cements filled only the residual porosity in Middle Jurassic limestones. In addition to fluorine inputs, fracturation also permitted inputs of sulphur possibly due to weathering of Triassic or Purbeckian evaporites or H2S input during Paleogene times