2,391 research outputs found

    Trace elements in marine biogenic carbonates: analysis and application to past ocean chemistry

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    Trace elements in marine biogenic carbonates may be used as proxies for past oceanchemistry provided that there is an established relationship between the trace elementproxy and a parameter of interest, this relationship is preserved within biogeniccarbonate, and the trace element can be determined sufficiently accurately. Successfulapplication of any trace element proxy requires both development of the analyticalmethodology to ensure accurate data with the necessary sensitivity, and anunderstanding of the relationship between proxy and seawater chemistry.Herein I develop methods for the determination of Mg/Ca, Sr/Ca and Cd/Ca inplanktonic foraminiferal calcite, using inductively coupled plasma optical emissionspectrophotometry and isotope dilution thermal ionisation mass spectrometry, andpropose a potential reference material for Mg/Ca in foraminiferal calcite. The developedtechniques are applied to an investigation of the Mg/Ca temperature proxy overChatham Rise in the Southwest Pacific Ocean and a calibration study of the partitioncoefficient, DCd, for cadmium incorporation into planktonic foraminifera.Comparisons of planktonic foraminiferal Mg/Ca, shell weight and oxygenisotope records from sites north and south of the Subtropical Front on Chatham Rise,demonstrate the effects of hydrography, foraminiferal habitat and dissolution as controlson Mg/Ca. Determinations of Cd/Ca in seven species of planktonic foraminiferaconfirm that the dominant controls on Cd/Ca are foraminiferal habitat and hydrography,with only a minor influence of post depositional dissolution. The major uncertainty indetermination of DCd from core top samples comes from uncertainty in estimation of thedepth distribution and seasons of calcification of planktonic foraminifera

    The Phil Rogers Russell, D.O. Collection

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    Finding aid for The Phil Rogers Russell, D.O. CollectionPhil Rogers Russell, D.O., practiced osteopathic medicine in the state of Texas from his 1917 graduation from the American School of Osteopathy, Kirksville, Missouri, until his death at the age of 80 in 1975. He was a strong supporter of the profession and was instrumental in the establishment and growth of the Fort Worth Osteopathic Hospital and the Texas College of Osteopathic Medicine. He won numerous awards and honors from the American Osteopathic Association, the Texas Osteopathic Association, other osteopathic institutions and associations, and civil awards. He was the author of "Quack Doctor", a memoir of his years as an osteopathic physician.The Phil R. Russell, D.O. Collection consists of speeches, articles, book manuscripts, books, memorabilia, photographs, certificates and awards that Dr. Russell authored or was presented during his lifetime

    Josi and Richard Russell Oral History Interview

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    Josi and Richard Russell, a local author and artist, respectively, were interviewed in Blanding, Utah, where they have lived for nearly 20 years and raised their two children. They express deep connection to the diverse landscape, which inspires their creative work, and highlight the strong sense of community and support they\u27ve experienced. While acknowledging the geographical isolation and limited restaurant options, they emphasize the opportunities Blanding offers, especially for their homeschooled children, through its inclusive environment, local university, and increasing connectivity to the wider world through remote work and online education. They are optimistic about the future of Blanding, particularly the potential for young people to return due to expanding opportunities, and commend local leaders for their responsiveness to community needs

    Archaeological survey and geoarchaeological investigations at 41BX1271, Walker Ranch Park, Bexar County, Texas

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    In January of 2003, a crew from the Center for Archaeological Research at The University of Texas at San Antonio conducted an archaeological survey and geoarchaeological investigations at site 41BX1271 in Walker Ranch Park for the San Antonio Parks and Recreation Department. This work was done in response to the planned installation ofsecurity lights around the existing park trail and a drinking fountain along the southwest portion of the trail system. The archaeological investigations were carried out under Texas Antiquities Permit No. 3023. Three separate field tasks were carried out in order to perform the required assessment: 1) pedestrian survey of the planned installation area; 2) excavation of 41 shovel tests; and 3) excavation of two geoarchaeological test units. This report details the recovery of prehistoric artifacts as well as recent materials within the geological deposits of the park. Discussion of the park soils and geology in relation to artifacts and human occupation is also provided. The archaeological investigations and artifacts recovered indicate a low density of cultural materials and low research potential for the area impacted by the planned modifications. While the lighting and fountain installations will impact the sparse cultural remains, these resources have low interpretive and scientific value and would not contribute significant new knowledge to existing information on Walker Ranch or the prehistory of the region.Department of Parks and Recreation, San Antoni

    The witches flight [music] : galop caprice /

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    For piano solo.; Caption title.; "Solo"--Cover.; "Author of La midget"--Cover.; "Universal edition"--At top of cover.; Publisher's address: D. Davis & Co., Music Publishers, Queen Victoria Markets, Sydney, and at 101 Queen Street, Brisbane.; Publication date approxiamted from the song advertised on back cover.; Also available online http://nla.gov.au/nla.mus-vn5717669; NLA's NL copy from the collection of Keith Watson. ANL

    The Perez Ranch project: reassessment of four archaeological sites in south-central Bexar County, Texas

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    In anticipation of planned land developments, NICDAR, Inc. of San Antonio Texas contracted the Center for Archaeological Research at The University of Texas at San Antonio to conduct a reassessment and boundary definition of four archaeological sites, 41BX274, 41BX277, 41BX682, and 41BX988, located on or in the vicinity of the historic Perez Ranch. The archaeological investigations were carried out under Texas Antiquities Permit No. 3278 with Dr. Steve A. Tomka serving as Principal Investigator. The investigations consisted of a surface survey of all sites, shovel testing and backhoe trenching at 41BX274, the Perez Ranch, shovel testing at 41BX988, the Laborer’s Shack, and limited shovel testing outside the cemetery bounds at 41BX277, the Perez Family Cemetery and Chapel. The Dolores Crossing, 41BX682, a Spanish Colonial period ford of the Medina River was subject to surface survey only. Based on the surface and subsurface distributions of artifacts at 41BX274 41BX277, and 41BX988, new boundaries were defined, staked and recorded at these sites using Global Positioning System units. The size of site 41BX274 has been reduced by splitting it into two sites 41BX274 and 41BX274a. 41BX274a was split from the original site since it is a concentration of cultural materials located some 350 meters southeast of the nearest concentration of cultural materials at 41BX274. This isolated concentration of cultural materials has now been identified as 41BX274a. Based on surface survey and shovel testing, it also was recommended that the boundaries of site 41BX277 be slightly increased to include a light scatter of prehistoric cultural materials found around the cemetery. Furthermore, it was recommended that the site be identified as multicomponent, given the presence of both prehistoric and historic materials within its boundaries. Based on the distribution of cultural materials at 41BX682, the boundaries of the site have been reduced. Finally, no cultural materials have been identified at 41BX988, although the location of the historic crossing coincides with the crossing of the Medina River by Applewhite Road. No cultural material was recovered from sites 41BX277 or 41BX682. Temporally diagnostic artifacts were recovered from the surface of sites 41BX274 and 41BX988. All cultural materials recovered in shovel tests at these two sites have also been retained. All artifacts are curated at the Center for Archaeological Research.NICDAR, Inc. (San Antonio

    The witches flight [music] : galop caprice /

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    For piano.; Caption title.; "Solo"--Cover.; "Author of La midget"--Cover.; "Universal edition"--At top of cover.; Publication date approximated from publisher's imprint: D. Davis & Co. Ltd., Music Publishers, Queen Victoria Buildings, George ST., Sydney.; Also available online http://nla.gov.au/nla.mus-an14296938

    Archaeological testing of four sites on Camp Bowie, Brown County, Texas

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    In August of 2002, a crew from the Center for Archaeological Research (CAR) of The University of Texas at San Antonio tested four sites at Camp Bowie in Brown County Texas. Three sites, 41BR471, 41BR500, and 41BR522, were prehistoric and one site, 41BR392, had both historic and prehistoric components. This work was done under Texas Antiquities Permit No. 2926 for the Adjutant General’s Department of Texas. Testing at these sites was done based on recommendations made for 41BR500 by Mauldin and Broehm (2001) and recommendations made for 41BR392, 41BR471 and 41BR522 by Greaves (2002). Testing at 41BR392 centered on a prehistoric burned rock midden. Excavations took place in and around the midden. A few bifaces and a considerable amount of lithic debris were recovered. The size, location and density of burned rock within the midden were examined as a means of investigating the internal midden structure. Analysis of these data suggest that the midden represents an earth oven. Ethnobotanical recovery revealed the presence of geophytes. Radiocarbon dates place the feature within the Late Prehistoric period. Testing at 41BR471 involved surface collection and excavation. Excavations confirmed that the site is deflated with sub-surface deposits being shallow and very minor. What remains of this site is a moderate to dense surface scatter ofunmodified debitage and a few lithic cores. Testing at 41BR500 centered on a suspected buried burned rock feature discovered during the spring 2001 survey. Excavations recovered unmodified lithic debitage, biface fragments and a scraper. Excavations in a separate area of the site where high debitage density was noted recovered a Nolan dart point dating to the Middle Archaic along with a number of bifaces and a considerable amount of unmodified lithic debitage. This additional testing uncovered a single charcoal stain, and radiocarbon dates place this feature within the Late Prehistoric period. Our analysis of the distribution of the diagnostic points, the distribution of debitage, and the radiocarbon date, suggest that much of this material is in secondary context. Test excavations at 41BR522 showed very little debitage in or around the prehistoric burned rock midden. This small midden is nearly a perfect ring of burned rock surrounding a central hearth depression. Preservation was excellent for the recovery of both charred botanical remains and for examination of the midden structure. A Montell dart point, dating to the Late Archaic was recovered. As with 41BR392, the size, location and density of burned rock within the midden was examined as a means of investigating the internal midden structure. Analysis revealed the midden to be a central hearth/earth-oven type burned rock midden. Ethnobotanical recovery revealed the presence of geophytes. Radiocarbon dates place the feature within the Late Prehistoric period. Based on the results of this testing, it is recommended that sites 41BR471 and 41BR500 are not eligible to the National Register of Historic Places and do not warrant status as State Archeological Landmarks. The sites have data that are of questionable integrity, and CAR’s testing work has effectively exhausted any remaining research potential. Sites 41BR392 and 41BR522 are recommended as eligible to the National Register of Historic Places and do warrant status as State Archeological Landmarks. Both recommended sites have data with good integrity. In addition, both sites have charcoal present, and good recovery of ethnobotanical material. Data from these sites can be used to consider a variety of research questions that are significant for understanding the prehistory of the region.Adjutant General's Department of Texa

    Le origini del liberalsocialismo di Bertrand Russell

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    Il saggio prende in esame le origini del liberalsocialismo di Bertrand Russell. Afferma che tutte le tesi maggiori dell'autore inglese sono presenti nelle prime opere politiche che pubblica.The essay deals with the origins of the liberal socialism of Bertrand Russell. The thesis is that all major ideas of the english author are present in first political books he publish

    The evolution of black neighborhoods since Kerner

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    Article published in: The Russell Sage Foundation Journal of the Social Sciences Volume 4, Number 6, October 2018This article studies the evolution of African American neighborhoods since the publication of the groundbreaking Kerner Commission report in 1968. We first examine how black and riot-affected neighborhoods evolved in four representative cities—Detroit, Newark, Los Angeles, and Washington, D.C.—during this period. Among black neighborhoods in these cities, we find that black neighborhoods not directly affected by riots fare better but trend similar to those that were. Notably, a number of disparities the commission identified as policy priorities—such as relatively lower income, higher poverty, and higher unemployment—persist despite declines in racist attitudes, extreme segregation, and an increased suburbanization of blacks. Fifty years after its publication, these findings suggest that the concerns of the Kerner Commission report remain relevant
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