192 research outputs found
An Author Writing to Remember and Celebrate Black Children
No full textWith an undergraduate degree in sociology from Morgan State University (Baltimore, MD) and a master’s degree in Library Science from the Catholic University of America (Washington, DC), Sharon Bell Mathis is a librarian and a multiple award-winning children’s and young adult book author [...
Sepedonea giovana Marinoni & Mathis, 2006, sp. nov.
No full text<i>Sepedonea giovana</i>, sp. nov. (Figs. 1 –11; 27; 41) <p> <i>Sepedonea guianica</i> of authors, not Steyskal [misidentification]. Knutson et al. 1976: 11 [Neotropical catalog; partim]. Knutson & Valley 1978: 198 [review; partim]. Freidberg <i>et al</i>. 1991: 16 [revision; partim].</p> <p> <i>Sepedonea vau.</i> Mello and Bredt 1978: 1459 [nomen nudum; phenology].</p> <p> <b>Diagnosis.</b> This species is distinguished from congeners (described in Freidberg <i>et al.</i>, 1991) especially <i>S. guianica,</i> by the following combination of characters: Mesonotum grayish black; setulae near posterior thoracic spiracle moderately numerous, weak but well developed. Wing (Fig. 5) infuscate, clouded. Midfemur bearing 3–5 spine­like setae posteroventrally; hindfemur with more or less discrete, usually dark, preapical lateral mark.</p> <p> <b>Description.</b> Adult. <i>Head:</i> Ocellar seta absent; postocellar seta absent. Fronto­orbital spot absent; orbito­antennal spot absent; face with a large brown spot at ventral corner.</p> <p> <i>Thorax:</i> Mesonotum grayish black; postpronotum brownish; setulae near posterior spiracle moderately strong and dense; setation near posterior spiracle weakly developed; setae on katatergal callus absent. Wing: Length 5.0–6.0 mm; brownish, usually clouded anteroapically and over crossveins r­m and dm­cu. Legs: Forefemur bearing at least 1 well­developed seta; midfemur usually bearing 3–6 spine­like setae posteroventrally, not extended beyond half distance to base, lacking setae along anterior surface; hindcoxa bearing short setulae posteriorly, mostly restricted to medial portion; hindfemur claviform, usually with dark, preapical marks, height/width ratio 4.5–5.0; hindtibia with a spinelike projection but lacking a distinctive seta at ventroapical margin.</p> <p> <i>Abdomen:</i> Male terminalia (Figs. 6–10): Posterior margin of 4th sternite deeply emarginate, with 2 lateral processes (Fig. 7); anterior plate of 5th sternite not reduced, with wide, indented flange at posteromedial margin folded ventrally (Fig. 6), posterior portion with a pair of moderately­sized processes; distiphallus (Fig. 8) sinuous, with posteroventral angle covered by large flat, setulose epiphallus; anterior surstylus small, indistinct; posterior surstyli completely fused to form a medial structure, this structure without a medial lobe; posterior surstylus with lateral lobe moderately strongly curved anteriorly (Fig. 9); epiphallus large; distiphallus absent. Female synsternite (Figs. 11; 27): Posterior margin in ventral view with ventral surface more or less straight, and with posterior ridge distinctly projected, rounded (Fig. 11); spermathecal duct at junction with spermatheca divided in 2 portions, portion closest to spermatheca wide (Fig. 27).</p> <p> <b>FIGURES 6–11.</b> <i>Sepedonea giovana</i> <b>sp. n.</b> 6. male 5th sternite; 7. male 4th sternite; 8. distiphallus lateral view; 9. posterior surstyli, posterior view; 10. posterior surstyli, lateral view; 11. female synsternite, ventral view.</p> <p> <b>Type specimens.</b> The holotype male is labeled “ BRAZIL: Minas Gerais: 17 km N of Belo Horizonte [43°56’W. 19°45’S] C. O. Berg 18–23 July 1964 / HOLOTYPE ɗ <i>Sepedonea giovana</i> Marinoni & Mathis [red].” The holotype is directly pinned, is in excellent condition, and is deposited in the USNM. Twenty­five male paratypes bear the same locality label as the holotype (DZUP, USNM). Other paratypes are as follows: BRAZIL. <i>Minas Gerais:</i> Belo Horizonte (43°56’W. 19°55’S), 18–23 Jul 1964, C. O. Berg (3ɗ, 3Ψ; USNM). <i>Paraná</i>: Curitiba (61 km S), Rio Varzea (49°15’W. 25°58’S), 16 May 1967, J. Abercrombie, C. O. Berg (5ɗ, 2Ψ; USNM); Morretes (6 km SE; 48°46.7’W. 25°30.3’S), 4–17 May 1967, J. Abercrombie, C. O. Berg (1Ψ; USNM); Praia do Leste (48°28’W. 25°41.5’S), 4 May 1967, J. Abercrombie, C. O. Berg (10ɗ, 11Ψ; DZUP, USNM); Rio Iguassu at Araucaria (51°12’W. 30°48’S), 1 May 1967, J. Abercrombie, C. O. Berg (1ɗ; USNM). <i>Rio Grande do Sul:</i> Porto Alegre (87 km S; 51°12’W. 30°48’S), 10 May 1967, J. Abercrombie, C. O. Berg (1Ψ; USNM). <i>Santa Catarina:</i> Lajes (5 km W; 50°21.7’W. 27°48’S), 6 May 1967, J. Abercrombie, C. O. Berg (1ɗ; USNM); Lajes (30 km S; 50°19’W. 28°04.2’S), 12 May 1967, J. Abercrombie, C. O. Berg (1Ψ; USNM). <i>São Paulo</i>: São José do Rio Preto (48°23’W. 20°48.1’S), 27 Jul 1966, N. Papavero (1ɗ; USNM).</p> <p> <b>Type locality.</b> Brazil. Minas Gerais: Belo Horizonte (17 km N; 43°56’W. 19°45’S).</p> <p> <b>Other specimens examined.</b> ARGENTINA. <i>Tucumán:</i> Monteros (65°30’W. 27°12’S), 7 Feb 1967, C. O. Berg, J. Abercrombie (1ɗ; USNM).</p> <p> BRAZIL. <i>Minas Gerais</i>: Jockey Club, 23 Aug–15 Sep 1966, C. O. Berg (12ɗ, 3Ψ; USNM).</p> <p> <b>Locality records from Mello & Bredt (1978).</b> BRAZIL. <i>Distrito Federal:</i> Núcleo Bandeirantes (47°58’W. 15°52’S), 11 Nov 1974, D. A. Mello, A. Bredt; Riberão Extrema, DF 21, 6 Feb 1974, D. A. Mello, A. Bredt. <i>Minas Gerais:</i> Hipódromo Serra Verde, Santa Luzia (43°20.6’W. 21°47.3’S), 24 Aug 1974, D. A. Mello, A. Bredt. <i>Goiás:</i> Rio Preto, Formosa (47°20’W. 15°32’S), 19 Jun 1974, Jan–May, Jul–Oct, Dec 1975, 1976, D. A. Mello, A. Bredt.</p> <p> <b>Distribution (Fig. 41).</b> Neotropical: Argentina (Tucumán) and Brazil (Goiás, Distrito Federal, Espirito Santo, Minas Gerais, Paraíba, Paraná, São Paulo).</p> <p> <b>Etymology.</b> The species epithet, <i>giovana,</i> is a noun in apposition and is named after the delightful daughter of the first author and her husband, Sionei Ricardo Bonatto, whose support is also appreciated.</p> <p> <b>Remarks.</b> Externally, the species of <i>Sepedonea</i> are difficult to distinguish and reference to structures of the male terminalia is usually needed to determine species accurately.</p> <p> The distribution map includes a few localities that we extracted from Mello & Bredt (1978), as noted above. We did not include localities they listed that may apply to another species, such as <i>S. guianica,</i> as we did not have access to these specimens to verify determinations of species.</p>Published as part of <i>Marinoni, Luciane & Mathis, Wayne N., 2006, A cladistic analysis of the Neotropical genus Sepedonea Steyskal (Diptera: Sciomyzidae), pp. 37-52 in Zootaxa 1236</i> on pages 40-43, DOI: <a href="http://zenodo.org/record/172789">10.5281/zenodo.172789</a>
Studium slitin titanu s využitím neutronové difrakce
No full textTitle: Investigation of titanium alloys using neutron diffraction Author: Gergely Németh Department / Institute: Department of Physics of Materials Supervisor of the master thesis: prof. RNDr. Kristián Mathis, Ph.D., DrSc., Department of Physics of Materials Abstract: Titanium grade 2 was treated by multiple passes of the continuous equal- channel angular pressing technique (CONFORM ECAP) and, after each pass, additionally by rotary swaging. The residual strain field in samples processed by only CONFORM ECAP was studied by neutron diffraction strain scanning. In order to elucidate the microscopic background and calculate the related residual stress field, the local microstructure was thoroughly investigated by various experimental techniques. The microstructure and the deformation behavior of the rotary swaged samples was studied by transmission electron microscopy and by in-situ neutron diffraction during compression. The results of the analyses indicated that microstructural gradients were present in the material as the result of the inhomogeneous deformation during the CONFORM ECAP treatment. These gradients were identified as the main reason of the presence of residual stress fields. The distributions of stress fields calculated based on microstructural parameters were in correlation with simulation...Název práce: Studium slitin titanu s využitím neutronové difrakce Autor: Gergely Németh Katedra: Katedra fyziky materiálů Vedoucí disertační práce: prof. RNDr. Kristián Mathis, Ph.D., DrSc., Katedra fyziky materiálů Abstrakt: Titan grade 2 byl zpracován vícery průchody kontinuální metodou protlačování lomeným kanálem stejného průřezu (CONFORM ECAP) a po každém průchodu navíc rotačním kováním. Pole zbytkové deformace ve vzorcích zpracované pouze CONFORM ECAP-em bylo studované skenem neutronové difrakce. Za účelem objasnění mikroskopického pozadí a vypočítání souvisejícího pole zbytkového napětí byla lokální mikrostruktura podrobně prozkoumaná různými experimentálními technikami. Mikrostruktura a deformační chování rotačně kovaných vzorků byly zkoumány transmisním elektronovým mikroskopem a in-situ neutronovou difrakcí během stlačení. Výsledky analýz naznačili, že gradienty mikrostruktury byly přítomny v materiálu jako důsledek nehomogenní deformace během CONFORM ECAP-u. Tyto gradienty byly identifikovány jako hlavním důvodem přítomnosti zbytkových napěťových polí. Rozložení napěťových polí vypočítané na základě mikrostrukturních parametrů byla v korelaci s výsledky simulací. Dodatečné rotační kování mělo za následek nanokrystalickou strukturu zrn s rostoucí homogenitou odpovídající zvyšujícímu se počtu...Department of Physics of MaterialsKatedra fyziky materiálůFaculty of Mathematics and PhysicsMatematicko-fyzikální fakult
Global and local estimates of environmental flow requirements to sustain river ecosystems are poorly correlated
No full textData repository for ‘Global and local estimates of environmental flow requirements to sustain river ecosystems are poorly correlated ‘
prepared by Mathis L. Messager ([email protected])
1. Overview and background ----------------------------------------------------------
This documentation describes the input and output data associated with the analysis presented in: Messager, M. L., Dickens, W. S. C., Eriyagama, N., Tharme, R. E., Stassen, R. (2024). Limited comparability of global and local estimates of
environmental flow requirements to sustain river ecosystems. https://doi.org/10.1088/1748-9326/ad1cb5.
Environmental flows (e-flows) are a central element of sustainable water resource management to mitigate the detrimental impacts of hydrological alteration on freshwater ecosystems and their benefits to people. Many nations strive to protect e-flows through policy, and thousands of local-scale e-flows assessments have been conducted globally, leveraging data and knowledge to quantify how much water must be provided to river ecosystems, and when, to keep them healthy. However, e-flows assessments and implementation are geographically uneven and cover a small fraction of rivers worldwide. This hinders globally consistent target-setting, monitoring and evaluation for international agreements to curb water scarcity and biodiversity loss. Therefore, dozens of models have been developed over the past two decades to estimate the e-flows requirements of rivers seamlessly across basins and administrative boundaries at a global scale.There has been little effort, however, to benchmark these models against locally derived e-flows estimates, which may limit confidence in the relevance of global estimates. The aim of this study was to assess whether current global methods reflect e-flows estimates used on the ground, by comparing global and local estimates for 1194 sites across 25 countries. We found that while global approaches broadly approximate the bulk volume of water that should be precautionarily provided to sustain aquatic ecosystems at the scale of large basins or countries, they explain a remarkably negligible 0%–1% of the global variability in locally derived estimates of the percentage of river flow that must be protected at a given site. Even when comparing assessments for individual countries, thus controlling for differences in local assessment methods among jurisdictions, global e-flows estimates only marginally compared (R2 ⩽ 0.31) to local estimates. Such a disconnect between global and local assessments of e-flows requirements limits the credibility of global estimates and associated targets for water use. To accelerate the global implementation of e-flows requires further concerted effort to compile and draw from the thousands of existing local e-flows assessments worldwide for developing a new generation of global models and bridging the gap from local to global scales..
The data repository includes data required to perform this analysis as well as the data outputs from this analysis. Input data from local e-flow assessments included herein were either provided by collaborators or extracted from published governmental and academic reports by the authors. Input hydrographic data not available for download elsewhere were provided by Dr. Bernhard Lehner and hydrological simulations from PCR-GLOBWB 2.0 at a spatial resolution of 5 arc-min (not provided herein) were provided by Dr. ir. Edwin H. Sutanudjaja.
All scripts necessary to reproduce this analysis are freely available for all purposes (and can be copied, modified and distributed) at: https://github.com/messamat/globalEF_testPy (for data-preformatting and global e-flow calculations) and https://github.com/messamat/globalEF_testR (for comparing global and local MAF and e-flow estimates). The structure of the analysis relies as much as possible on good enough practices in scientific computing, which users are encouraged to read.
2. Repository content ----------------------------------------------------------
The data repository has the following structure, which must be conserved to run the analysis workflow:
---------------------------------------------------------
data/
Formatted_data_Chandima_20211018: pre-formatted local e-flow assessment sites.
Formatted_data_Chandima_20211102: pre-formatted local e-flow assessment sites.
GEFIS_test_data/:
Master Data Table_20230424.xlsx: final database of local e-flow assessments.
HydroATLAS/: hydrographic data required for downscaling and mapping global MAF and e-flow estimates
HydroATLAS_metadata_MLMv11.xlsx: metadata of RiverATLAS attributes used in producing distribution histogram in Supplementary Material.
----------------------------------------------------------
results/
france_preprocessing.gdb: outputs from spatial formatting of local e-flow assessment data for the Rhone River basin in France. The main output file is /Rhone_EFpoints_cleanjoin.
mexico_preprocessing.gdb: outputs from spatial formatting of local e-flow assessment data for Mexico. The main output file is /Mexico_EFpoints_cleanjoin.
processing_outputs.gdb: outputs from overall spatial formatting of local e-flow assessment data. The fully formatted point data of the sites is: EFpoints_20230424_clean_riverjoin. Associated with global e-flow estimates: EFpoints_20230424_clean_globalEF.
victoria_preprocessing.gdb: outputs from spatial formatting of local e-flow assessment data for the state of Victoria, Australia. The main output file is /Victoria_EFpoints_cleanjoin.
EFpoints_20230424_clean_globalEF.csv: all global e-flow estimates extracted for local e-flow assessment sites.
----------------------------------------------------------
isimp2_qtot_accumulated15s.gdb.zip: all global MAF and e-flow estimates in raster format. In the analytical workflow, these data are in the results/ folder but here they have been placed outside to conform with the maximum file size limit of this dataverse.
----------------------------------------------------------
README_Technical_documentation_globalEFcomparison_Messageretal2023.pdf : documentation for this repository
3. Data format and projection ----------------------------------------------------------
The spatial datasets are distributed in ESRI® file geodatabase format. Please contact the author should you want the data in another format. These datasets are available in compressed zip file format. To use the data files, the zip files must first be decompressed.
All data layers are provided in geographic (latitude/longitude) projection, referenced to datum WGS84. In ESRI® software this projection is defined by the geographic coordinate system GCS_WGS_1984 and datum D_WGS_1984 (EPSG: 4326).
4. License and citations ----------------------------------------------------------
4.1 License agreement
This documentation and datasets are licensed under a Creative Commons Attribution-ShareAlike 4.0 International License (CC-BY-4.0 License). For all regulations regarding license grants, copyright, redistribution restrictions, required attributions, disclaimer of warranty, indemnification, liability, waiver of damages, and a precise definition of licensed materials, please refer to the License Agreement (https://creativecommons.org/licenses/by/4.0/legalcode). For a human-readable summary of the license, please see https://creativecommons.org/licenses/by/4.0/.
4.2 Citations and acknowledgements.
Citations and acknowledgements of this dataset should be made as follows:
Messager, M. L., Dickens, W. S. C., Eriyagama, N., Tharme, R. E., Stassen, R. (2024). Limited comparability of global and local estimates of
environmental flow requirements to sustain river ecosystems. Environmental Research Letters. https://doi.org/10.1088/1748-9326/ad1cb5.
We kindly ask users to cite this study in any published material produced using it. If possible, online links to this repository (DOI) should also be provided
Studium deformačních procesů v slitinách Mg-Gd
No full textNázev práce: Studium deformačních procesů v slitinách Mg-Gd Autor: Andrea Szabóová Katedra / Ústav: Katedra fyziky materiálů Vedoucí bakalářské práce: doc. RNDr. Kristián Mathis, DrSc. Abstrakt: Předložená práce se zabývá studiem deformačního chování binárních slitin hořčík-gadolinium v závislosti na koncentraci Gd a na teplotě deformace. Extrudované vzorky vykazovaly poměrně silnou výchozí texturu. Tlakové deformační zkoušky byly prováděny při pokojové teplotě a při 200řC. Souběžně s deformací byla zaznamenávána i akustická emise, kterou jsme analyzovali s pokročilými statistickými metodami. Kombinací těchto dvou experimentálních metod jsme ukázali, že v počátečním stádiu deformace dominuje dvojčatění, ale v pozdější fázi plastická deformace proběhne převážně nebazálním kluzem. S vyšším obsahem Gd klesá velikost dvojčat, v důsledku snížení mobility dvojčatových hranic příměsovými atomy. Při vyšších deformačních teplotách dvojčatění bylo usnadněno tepelnou aktivací. Závěry byly ověřené kombinací optické světelné a skenovací elektronové mikroskopie. Klíčová slova: hořčíková slitina, deformační zkoušky, akustická emise, mikroskopieTitle: Investigation of deformation mechanisms in Mg-Gd alloys Author: Andrea Szabóová Department: Department of Physics of Materials Supervisor: doc. RNDr. Kristián Mathis, DrSc. Abstract: In the present work, the deformation behavior of magnesium-gadolinium binary alloys was investigated. Dependence on the concentration of Gd and deformation temperatures was studied. Extruded samples had relatively strong initial texture. Compression tests were done at room temperature and 200řC. Simultaneously with deformation acoustic emission was recorded. Data from acoustic emission was analyzed with advanced statistical methods. Results of the combination of these two experimental methods indicated that at the beginning of the deformation twinning is the dominant mechanism. In the following stage of plastic deformation non-basal slip systems became the governing deformation mechanism. With higher content of Gd the size of twins decreases as a result of the decreased mobility of twin boundaries caused by solute atoms. At higher temperatures twinning activity was increasing. In addition, results were confirmed by optical light and scanning electron microscopy. Keywords: magnesium alloy, deformation tests, acoustic emission, microscopyKatedra fyziky materiálůDepartment of Physics of MaterialsMatematicko-fyzikální fakultaFaculty of Mathematics and Physic
ACADEMIC PRODUCTIVITY AFTER COLON AND RECTAL SURGERY FELLOWSHIP
No full textPurpose/Background: Early career publication productivity among academic surgeons after Colon and Rectal Surgery (CRS) Fellowship has not been studied. Hypothesis/Aim: We aimed to describe predictive factors of academic surgeons’ publication productivity using pre-CRS fellowship characteristics. Methods/Interventions: Candidates included those applying for CRS fellowship at Mayo Clinic between 2015 and 2018 and appointed in an academic position post-fellowship. Academic position was defined as Instructor, Assistant Professor, Associate Professor, or Professor. It was assessed through a cross-checking of information on public online sources (American College of Surgeons, American Society of Colon and Rectal Surgeons, university website, and social media). Academic position and publications were blindly assessed by three authors (G.C, S.A., S.B.) in July 2021, any incongruity was further resolved. The number of publications post-fellowship and authorship positions was retrieved from PubMed, with a median follow-up of 2.5 years [range: 1-4 years]. Academics top quartile (Q1) was defined according to a composite productivity outcome of publications/year ratio as first, last and any-position author. Data were compared between Q1 and the less productive quartiles (Q2-4). Pre-fellowship data were retrieved from the Electronic Residency Application Service (ERAS®) application. Results/Outcome(s): Among 130 defined academic surgeons, first author, last author, and any position publications were less than one publication/year ratio in 80%, 86%, and 47%, respectively. First author publications were one, two, or ≥three publications/year ratio in 16%, 4%, and 2% of the academics, while last author publications in 9%, 3%, and 3%. Overall, the number of publications as any author position was one in 21%, two in 13%, three to five in 11%, and >five publications/year ratio in 10% of the academics. Academics in the top quartile (Q1) more frequently attended a top-20 medical school, top-20 Surgery Residency Program, and completed a Research Fellowship. Prior to fellowship, Q1 academics had more publications as 1st author and had more presentations. Understandably, these individuals frequently received research awards and had earned advanced degrees (Master/PhD) (Table 1). Limitations: Its retrospective nature and follow-up duration limited our study. Conclusions/Discussion: Among early-career academics, half coauthored less than one article/year after CRS fellowship, and more than 80% authored less than one article/year as first or last author. Conversely, academics with the highest publication productivity during their early career demonstrated high pre-fellowship research and publication performances
An Examination of Alberta's Wetland Management Program
No full textWetlands play a crucial role in buffering the effects of climate change and supporting climate adaptation and resiliency. Sustainable wetland management practices require integration into the water sector to address economic, social and environmental factors, and to address urgent contemporary complex environmental problems such as climate change. Canada’s boreal forest and boreal region affect the health of the environment worldwide by storing carbon, purifying air and water, and regulating the climate. This thesis examines Alberta’s Wetland Policy (2013) design and implementation to assess the policy’s potential to effectively conserve, restore, protect, and manage Alberta’s wetlands in order to sustain the benefits they provide to the environment, society, and economy. Transition to a province-wide wetland policy requires a foundation that integrates water resources management—made possible by the Government of Alberta’s regional land-use planning framework. An analytical framework was derived from and applied to the Alberta context (as described in Alberta government documents, supplemented by key informant experience) to examine the policy and its implementation in relation to the wise use of wetland management practices. Results indicate that Alberta tends to opt for mitigation and compensation for wetland development rather than wetland retention. There is potential for increasing the conservation of wetlands. The policy and legislative framework could support the wise use of wetlands, but there are substantial gaps in implementation. Recommendations will stress the need for functional integration across government ministries to identify ecological threshold limits and better communication with, and support for, municipalities and landowners, particularly agriculturalists
Eddy transport of organic carbon and nutrients from the Chukchi Shelf : impact on the upper halocline of the western Arctic Ocean
No full textAuthor Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 112 (2007): C05011, doi:10.1029/2006JC003899.In September 2004 a detailed physical and chemical survey was conducted on an anticyclonic, cold-core eddy located seaward of the Chukchi Shelf in the western Arctic Ocean. The eddy had a diameter of ∼16 km and was centered at a depth of ∼160 m between the 1000 and 1500 m isobaths over the continental slope. The water in the core of the eddy (total volume of 25 km3) was of Pacific origin, and contained elevated concentrations of nutrients, organic carbon, and suspended particles. The feature, which likely formed from the boundary current along the edge of the Chukchi Shelf, provides a mechanism for transport of carbon, oxygen, and nutrients directly into the upper halocline of the Canada Basin. Nutrient concentrations in the eddy core were elevated compared to waters of similar density in the deep Canada Basin: silicate (+20 μmol L−1), nitrate (+5 μmol L−1), and phosphate (+0.4 μmol L−1). Organic carbon in the eddy core was also elevated: POC (+3.8 μmol L−1) and DOC (+11 μmol L−1). From these observations, the eddy contained 1.25 × 109 moles Si, 4.5 × 108 moles NO3 −, 5.5 × 107 moles PO3 −, 1.2 × 108 moles POC, and 1.9 × 109 moles DOC, all available for transport to the interior of the Canada Basin. This suggests that such eddies likely play a significant role in maintaining the nutrient maxima observed in the upper halocline. Assuming that shelf-to-basin eddy transport is the dominant renewal mechanism for waters of the upper halocline, remineralization of the excess organic carbon transported into the interior would consume 6.70 × 1010 moles of O2, or one half the total oxygen consumption anticipated arising from all export processes impacting the upper halocline.This work was
supported by the National Science Foundation, and office of Naval
Research; DH OPP-0124900, NB OPP-0124868, DK OPP 0124872, RP
N00014-02-1-0317
Camp Floyd in retrospect
No full textthesisDuring the period of United States History typified by the westward movement, military posts were established along the main routes of travel for the principal purpose of providing protection to those hardy souls who looked to the setting sun for a better way of life. There was at least one exception to this practice, however, and it is the topic of this thesis. The author has an abiding interest in military movements in the West and a desire to learn more of the contribution made to America by dusty cavalrymen and footsore infantry men. This study of Camp Floyd, Utah Territory, grew out of this interest, which bordered at times on obsession. Though Camp Floyd was typical of western outposts in many respects, it was still unique in the purpose of its establishment- to quell the reported rebellion of subjects of the United States. An attempt has been made in this work to capture the excitement and romance experienced by the frontier soldiers stationed at Camp Floyd, as well as to discuss their several contributions to the development of the West. Appreciation is expressed to the many people and institutions who aided the author in preparing this work; to Dr. Leland H. Creer, Head of the Department of History at the University of Utah, for his guidance and encouragement in supervising this thesis, to Dr. David E. Miller, Professor of History at the University, for his detailed reading of this work and for his helpful suggestions on style and phraseology, to the University of Utah Library, Utah State Historical Society, the Bancroft Library, and the L.D.S. Church Historian*s Office for making available the primary material used in this thesis, and to the author\u27s grandfather, Henry George Mathis, a pioneer of Utah, who was directly influenced by the topic of this paper. Especial appreciation is due the author*s wife, Sara-Beth, for her untiring efforts in typing this thesis and for the patience, understanding, and encouragement she has expressed to him in the preparation of this work
Neanderthal subsistence behaviours in Europe
No full textABSTRACT Ten years of research about the Neanderthal's subsistence behaviour are presented. The study of large mammal bones is now recognized as a means of understanding subsistence behaviour (sensu lato), notably by analysing acquisition and processing strategies, as well as patterns of consumption. This paper summarizes the results of an analysis of a corpus of data from several European countries, representing a total of 466 levels corresponding to 323 sites (Patou-Mathis M. 1999a. Mé moire d'Habilitation à Diriger des Recherches, submitted to: University Paris I. The countries involved are: France, Belgium, Germany, Poland, the Czech Republic, Slovakia, Hungary, Slovenia, Croatia, Romania, Moldavia, Ukraine and Georgia. The period of study extends from the end of the Middle Pleistocene to the beginning of the Upper Pleistocene, i.e. from isotope stage 8 to stage 3. Three different sources of data are used: bone assemblage studies by the author (reference samples); fully published zooarchaeological studies (reliable samples) and publications containing relatively detailed data about fauna (more problematical samples). The information obtained from these data sources does not have the same degree of precision. In order to consider the full range of subsistence behaviour exhibited by Neanderthals, faunal analyses are compared to results of the analysis of lithic materials from the target regions. This comparison validates hypotheses about subsistence, site function, settlement territory, and human mobility
- …
