Late diagenetic indicators of buried oil and gas. 2: Direct detection experiment at Cement and Garza fields, Oklahoma and Texas, using enhanced LANDSAT 1 and 2 images

The author has identified the following significant results. The Cement oil field, Oklahoma, was a test site for an experiment designed to evaluate LANDSAT's capability to detect an alteration zone in surface rocks caused by hydrocarbon microseepage. Loss of iron and impregnation of sandstone by carbonate cements and replacement of gypsum by calcite were the major alteration phenomena at Cement. The bedrock alterations were partially masked by unaltered overlying beds, thick soils, and dense natural and cultivated vegetation. Interpreters, biased by detailed ground truth, were able to map the alteration zone subjectively using a magnified, filtered, and sinusoidally stretched LANDSAT composite image; other interpreters, unbiased by ground truth data, could not duplicate that interpretation

Institutional Repositories: A Plethora of Possibilities

Explores why academic law libraries have taken the lead in implementing institutional repositories on their campuses and what types of materials appear in these repositories

Perceptions of Race and Ancestry in Teaching, Research, and Public Engagement in Biological Anthropology

The concept of race has a complex history in the field of biological anthropology. Despite increased recognition of the racist origins of the discipline, there remains little agreement about what the concept means, how it is used, or how it is discussed. The present study presents the results of a survey of biological anthropologists to investigate the relationship of biological anthropology/ists with race and ancestry. The survey focuses on the areas of research, public engagement, and teaching as related to these concepts. Results indicate that a large majority of biological anthropologists argue for the separation of race (as a social not biological concept) from ancestry. The majority of respondents argued that ancestry categories should be based on geography (e.g., Asian, European, and African), and more anthropologists thought the terms “Hispanic/Latino” were inappropriate ancestry categories. While the majority of respondents felt that discussions of these terms were not matters of “political correctness,” nearly a quarter of respondents suggested that concerns over the moral and ethical implications of research (e.g., photos, terminology, ancestry, etc.) result in the silencing of anthropological research. Overwhelmingly, respondents felt that anthropologists have a responsibility to ensure the avoidance of misappropriation of their work in race science and by white nationalists/supremacists. Some differences in survey responses were found among respondents in relation to sub-discipline, educational level, location of respondents, age, self-identified racial/ethnic categories, and gender. In regard to teaching, survey results indicate that these concepts are minimally covered in university classrooms. When taught, topics focused on the colonialist/racist history of anthropology, the presence of white privilege/supremacy, and racism. Based on the results of this survey, we argue for greater public engagement on these concepts, a standardized system of teaching race and ancestry, and a disciplinary conversation about practice and terminology. In this way, biological anthropologists can best place themselves to combat racism in a socially responsible way

Becoming Director: An Internal Candidate\u27s View

Articles reviewing the challenges of assuming a library directorship typically begin in the middle of the story. The new hire arrives from another campus to face a range of challenges. The accounts from there go on to extract a general map of the initial experiences along with helpful tools to navigate this intimidating terrain. That view, we suggest, obscures natural fault lines within the community of new directors. These divisions can fundamentally influence the initial experiences upon which the authors are offering their advice. On such variable concerns the route by which the successful applicant has been named the new director. Some are in-house candidates with specific experience in the library they will now lead, while others are outside candidates who face the added challenge to understand the ways that their understanding of other institutions will translate to the new context. The latter is so much the more common that it is often taken for granted. On the contrary, we suggest that this distinction impacts not only the early actions of the new director, but the hiring process as well. To bring greater balance to the literature of director hiring, we offer the personal experience of the lead author as a successful internal candidate, and put this personal account into the broader context of the hiring process for library leadership positions

White Paper: Behind a Law School\u27s Decision to Implement an Institutional Repository

An institutional repository [IR] is a means to collect the intellectual digital output of an organization. This white paper discusses creating a business case for the IR, obtaining content for the repository, managing intellectual property issues and extending the IR beyond a single institution

Optimization of the neutron yield in fusion plasmas produced by Coulomb explosions of deuterium clusters irradiated by a petawatt laser

The kinetic energy of hot (multi-keV) ions from the laser-driven Coulomb explosion of deuterium clusters and the resulting fusion yield in plasmas formed from these exploding clusters has been investigated under a variety of conditions using the Texas Petawatt laser. An optimum laser intensity was found for producing neutrons in these cluster fusion plasmas with corresponding average ion energies of 14 keV. The substantial volume (1-10 mm(3)) of the laser-cluster interaction produced by the petawatt peak power laser pulse led to a fusion yield of 1.6x10(7) neutrons in a single shot with a 120 J, 170 fs laser pulse. Possible effects of prepulses are discussed. DOI: 10.1103/PhysRevE.87.023106Glenn Focht Memorial FellowshipNNSA DE-FC52-08NA28512DOE Office of Basic Energy SciencesPhysic

The neuroanatomy of autism – a developmental perspective

Autism Spectrum Disorders (ASDs) are a heterogeneous group of neurodevelopmental disorders that are diagnosed solely on the basis of behaviour. A large body of work has reported neuroanatomical differences between individuals with ASD and neurotypical controls. Despite the huge clinical and genetic heterogeneity that typifies autism, some of these anatomical features appear to be either present in most cases or so dramatically altered in some that their presence is now reasonably well replicated in a number of studies. One such finding is the tendency towards overgrowth of the frontal cortex during the early postnatal period. Although these reports have been focused primarily on the presumed pathological anatomy, they are providing us with important insights into normal brain anatomy and are stimulating new ideas and hypotheses about the normal trajectory of brain development and the function of specific anatomical brain structures. The use of model systems that include genetic model organisms such as the mouse and, more recently, human induced pluripotent stem cell‐derived brain organoids to model normal and pathological human cortical development, is proving particularly informative. Here we review some of the neuroanatomical alterations reported in autism, with a particular focus on well‐validated findings and recent advances in the field, and ask what these observations can tell us about normal and abnormal brain development

The Texas Petawatt Laser And Current Experiments

The Texas Petawatt Laser is operational with experimental campaigns executed in both F/40 and F3 target chambers. Recent improvements have resulted in intensities of >2x10(21) W/cm(2) on target. Experimental highlights include, accelerated electron energies of >2 GeV, DD fusion ion temperatures >25 keV and isochorically heated solids to 10-50 eV.Physic