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Literatura académica sobre el tema "Dating potential"

Autor: Grafiati

Publicado: 25 de mayo de 2024

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Artículos de revistas sobre el tema "Dating potential"

Neulieb, Thomas, Elisabeth Levac, John Southon, Michael Lewis, I. Florin Pendea y Gail L. Chmura. "Potential Pitfalls of Pollen Dating". Radiocarbon 55, n.º 3 (2013): 1142–55. http://dx.doi.org/10.1017/s0033822200048050.

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Pollen extracted from ocean and wetland sediments cored from the eastern Canadian Margin, James Bay region, and Atlantic provinces of Canada have been radiocarbon dated and results are reported here. Pollen dates from ocean sediments were compared with marine carbonate (mollusk shells or foraminifera) dates from the same core levels, dates for which validity was assessed via correlations with other cores, and for which reworking has been excluded. Pollen samples from 3 tidal wetlands were taken from levels dated with 137Cs and 210Pb profiles. Pollen dates from 2 additional wetlands were compared with 14C dates of botanical macrofossils. Most pollen dates disagree with 14C dates based on macrofossils or carbonates, with age differences typically exceeding 250 yr and reaching 4000 yr in one instance. In some cores, pollen dates show age reversals. Significant proportions of reworked pollen grains in ocean and wetland samples are associated with pollen dates that are too old. Prolonged core storage could result in pollen 14C ages that are too young, possibly because of growth of fungi or other microbes, but more work is needed to verify this hypothesis. Despite the problems we encountered, some pollen dates are consistent with other 14C dates from the same core levels, suggesting this dating method can work, but at present, more work is needed to understand the conflicting results obtained.

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Grün, Rainer. "Potential and problems of ESR dating". International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements 18, n.º 1-2 (enero de 1991): 143–53. http://dx.doi.org/10.1016/1359-0189(91)90106-r.

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Matsuzaki, Hiroyuki. "Iodine-129, a Potential Dating Tool". RADIOISOTOPES 73, n.º 1 (15 de marzo de 2024): 47–59. http://dx.doi.org/10.3769/radioisotopes.73.47.

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Martin, Charles W. "Radiocarbon dating: Recent applications and future potential". Geoarchaeology 14, n.º 4 (abril de 1999): 371–73. http://dx.doi.org/10.1002/(sici)1520-6548(199904)14:4<371::aid-gea7>3.0.co;2-#.

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Bailey, David Evans. "The Potential for Immersive Technology combined with Online Dating". Australian Journal of Telecommunications and the Digital Economy 5, n.º 4 (25 de diciembre de 2017): 125–35. http://dx.doi.org/10.18080/ajtde.v5n4.130.

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Whilst online dating has been around for several years; immersive technologies are relatively new to this type of interaction. The first forays into immersive VR online dating have only just being made in the past year. To what degree this type of technology will change the way that we date is potentially quite different from the current way that online dates are conducted. The way the technology works could make virtual dates seem as real as a physical date. Understanding how immersive technology functions gives some insights into the future of online dating and also the impact on the digital economy.

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Bailey, David Evans. "The Potential for Immersive Technology combined with Online Dating". Journal of Telecommunications and the Digital Economy 5, n.º 4 (25 de diciembre de 2017): 125–35. http://dx.doi.org/10.18080/jtde.v5n4.130.

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Uglietti, Chiara, Alexander Zapf, Theo Manuel Jenk, Michael Sigl, Sönke Szidat, Gary Salazar y Margit Schwikowski. "Radiocarbon dating of glacier ice: overview, optimisation, validation and potential". Cryosphere 10, n.º 6 (21 de diciembre de 2016): 3091–105. http://dx.doi.org/10.5194/tc-10-3091-2016.

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Abstract. High-altitude glaciers and ice caps from midlatitudes and tropical regions contain valuable signals of past climatic and environmental conditions as well as human activities, but for a meaningful interpretation this information needs to be placed in a precise chronological context. For dating the upper part of ice cores from such sites, several relatively precise methods exist, but they fail in the older and deeper parts, where plastic deformation of the ice results in strong annual layer thinning and a non-linear age–depth relationship. If sufficient organic matter such as plant, wood or insect fragments were found, radiocarbon (14C) analysis would have thus been the only option for a direct and absolute dating of deeper ice core sections. However such fragments are rarely found and, even then, they would not be very likely to occur at the desired depth and resolution. About 10 years ago, a new, complementary dating tool was therefore introduced by our group. It is based on extracting the µg-amounts of the water-insoluble organic carbon (WIOC) fraction of carbonaceous aerosols embedded in the ice matrix for subsequent 14C dating. Since then this new approach has been improved considerably by reducing the measurement time and improving the overall precision. Samples with ∼ 10 µg WIOC mass can now be dated with reasonable uncertainty of around 10–20 % (variable depending on sample age). This requires about 300 to 800 g of ice for WIOC concentrations typically found in midlatitude and low-latitude glacier ice. Dating polar ice with satisfactory age precision is still not possible since WIOC concentrations are around 1 order of magnitude lower. The accuracy of the WIOC 14C method was validated by applying it to independently dated ice. With this method, the deepest parts of the ice cores from Colle Gnifetti and the Mt Ortles glacier in the European Alps, Illimani glacier in the Bolivian Andes, Tsambagarav ice cap in the Mongolian Altai, and Belukha glacier in the Siberian Altai have been dated. In all cases a strong annual layer thinning towards the bedrock was observed and the oldest ages obtained were in the range of 10 000 years. WIOC 14C dating was not only crucial for interpretation of the embedded environmental and climatic histories, but additionally gave a better insight into glacier flow dynamics close to the bedrock and past glacier coverage. For this the availability of multiple dating points in the deepest parts was essential, which is the strength of the presented WIOC 14C dating method, allowing determination of absolute ages from principally every piece of ice.

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Zytko, Douglas, Nicholas Mullins, Shelnesha Taylor y Richard H. Holler. "Dating Apps Are Used for More Than Dating". Proceedings of the ACM on Human-Computer Interaction 6, GROUP (14 de enero de 2022): 1–14. http://dx.doi.org/10.1145/3492849.

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Use and design of dating apps has evolved in recent years to accommodate other interaction goals beyond dating, prompting some researchers to now refer to these apps as people-nearby applications (PNAs). With this expansion of use comes increased potential for misinterpretation of users' goals for meeting face-to-face, which can pose risks to user safety particularly when disparities in sexual expectations occur. We present a survey study (n=132) with users of several PNAs and with various motivations for PNA-use to understand how interaction goals are disclosed and detected. The study finds such practices to be far from consistent, with some appearing highly susceptible to misinterpretation such as purposely delaying self-presentation of interaction goals until meeting face-to-face, and implying sexual expectations through vague references to "fun." We conclude by suggesting a modified version of the "swiping" feature in PNAs to facilitate consistent and overt self-presentation of interaction goals in ways that accommodate user tendencies discovered in the study.

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Tsukamoto, S., G. A. T. Duller, A. G. Wintle y D. Muhs. "Assessing the potential for luminescence dating of basalts". Quaternary Geochronology 6, n.º 1 (febrero de 2011): 61–70. http://dx.doi.org/10.1016/j.quageo.2010.04.002.

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Yamaguchi, David K. y George L. Allen. "A new computer program for estimating the statistical significance of cross-dating positions for "floating" tree-ring series". Canadian Journal of Forest Research 22, n.º 9 (1 de septiembre de 1992): 1215–21. http://dx.doi.org/10.1139/x92-162.

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CORREL is a FORTRAN program that employs cross correlation to (i) determine potential cross-dating (matching) positions for "floating" (undated) ring series; (ii) detect missing or false rings; and (iii) estimate the statistical significance of potential dating positions. To work properly, CORREL input data must be detrended and modeled using the autoregressive moving average procedure. To guard against spurious dating, the output's best date should be checked for dating consistency. The significance level of the best date is obtained by adjusting its single-dating-trial significance for multiplicity (repeated dating trials). Ideally, COREL should be used with the detrending tree-ring programs ARSTAN or INDEX, and with the data quality-control program COFECHA.

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Tesis sobre el tema "Dating potential"

McCarroll, D. "Relative-age dating of Neoglacial moraines, Jotunheimen, southern Norway : the potential of the Schmidt hammer". Thesis, Swansea University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638043.

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This thesis represents a critical assessment of the potential of the Schmidt hammer in dating boulder surfaces. Although primarily concerned with the potential of the Schmidt hammer for differentiating moraines which may pre-date the 'Little Ice Age' maximum (c. 1750 AD) in Jotunheimen, southern Norway, many of the results are of wider relevance. Over 30,000 Schmidt hammer rebound values were collected from 138 sites on 7 glacier forelands. Four factors are found to influence Schmidt hammer results: instrument errors, variations in lithology, degree of boulder surface weathering and degree of boulder surface roughness. The influence of each is examined and its potential as a source of error in the interpretation of Schmidt hammer results assessed. Particular attention is paid to boulder surface roughness, which may reflect transport history or the differential weathering of surface minerals. An instrument was designed and constructed allowing quantification of roughness parameters in the field. Variation in R-values parallels variations in boulder roughness due to differing transport histories. Boulder roundness provides a surrogate measure of boulder surface roughness and facilitates the isolation of sites with anomalously low R-values. Most low R-values obtained from moraine ridges are explained by variations in lithology and by the pushing and re-working of older, weathered material. No moraines could be unequivocally dated to before the 'Little Ice Age', although in some cases the Schmidt hammer results do not preclude such a possibility. It is concluded that Schmidt hammer rebound values do not provide a simple index of surface age. They should be interpreted with caution, and the influence of extraneous factors assessed critically before conclusions are drawn.

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Russell, Jonathan. "Investigation of the potential of Pb/Pb radiometric dating for the direct age determination of carbonates". Thesis, University of Oxford, 1992. http://ora.ox.ac.uk/objects/uuid:c28f08cd-9a27-4ed1-b7eb-eda43ecb469b.

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Recent studies have demonstrated the potentially robust nature of U-Pb and Pb/Pb systematics within certain sedimentary and metamorphic carbonates (e.g. Moorbath et al., 1987; Jahn, 1988; Jahn et al., 1990; DeWolf and Halliday, 1991). During the course of this work, the Pb/Pb dating technique has been applied successfully to the direct dating of Proterozoic stromatolitic carbonates from Western Australia and India, Silurian stromatoporoidal carbonates from Sweden and Archaean marbles from India, permitting the direct age determination of depositional/early diagenetic, late diagenetic and metamorphic events. Results indicate that large variations in μ value (²³⁸U/²⁰⁴Pb) and virtually homogeneous initial Pb isotopic compositions are a recurrent feature of sedimentary and metamorphic carbonates. Authigenic marine carbonates may incorporate U and Pb through a variety of geochemical mechanisms;

organic complexing;
crystal lattice substitution;
adsorption onto particulate oxyhydroxides and
early diagenetic reduction.

Since modern and ancient carbonates have U and Pb concentrations of the order of ppm, whereas dissolved U and Pb in the oceans occur at 3.2 ppb and 0.003 ppb, preconcentration within the water column must be an important factor in the establishment of appropriate geochemical conditions. The rapid scavenging of Pb, compared to rates of U fixation under suboxic conditions, means that depositional μ values seldom approach the sea water figure of c.80,000. Owing to the largely independent geochemical behaviour of U and Pb, early diagenetic, late diagenetic and metamorphic recrystallisation may either partially disturb Pb/Pb and U-Pb systematics or effect complete resetting of radiometric ages. Consequently, results from geochronological studies should be interpreted only after due consideration of all available geological information. The extensive distribution of metamorphic and sedimentary carbonates throughout the geological record, coupled with the apparent robustness of Pb/Pb systematics, means that this technique can offer an effective means of event dating, stratigraphic correlation and time scale calibration, particularly in the Precambrian where independent age constraints are limited. In addition, the identification of late diagenetic recrystallisation ages offers exciting potential for constraining the diagenetic histories of sedimentary basins.

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Sanderson, D. C. W. "Thermoluminescence dating of Scottish vitrified forts : development, evaluation and demonstration of the potential of thermoluminescence dating techniques to resolve outstanding chronological problems associated with Scottish vitrified forts". Thesis, University of the West of Scotland, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376105.

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The Scottish vitrified forts form a unique assemblage of archaeological monuments exhibiting the common feature of partly melted masonry generally found in the vicinity of a ruined wall. Although they have received considerable attention from scholars since their discovery in the late eighteenth century many questions relating to origins, purpose and chronology remain unanswered. This work represents the first coherent attempt to develop and apply direct dating to vitrified rocks _ using thermoluminescence (TL) techniques to establish the time elapsed since the last heating of the sample. The technique is based on equating the thermoluminescence acquired by minerals within vitrified rocks, during the period following vitrification, to the levels of natural ionising radiation within and around the samples. Study sites were selected on the basis of a mineralogical, analytical and dosimetric survey of material from museum collections, and sampled from secure contexts using a portable diamond coring tool. Radiation dose rates to the samples were determined using a combination of thermoluminescence and low level counting methods coupled to standard microdosimetric models for specific mineral phases. A promising new method of rapid beta dose rate measurement was developed during this work. Thermoluminescence measurements of separated mineral extracts were performed using computerised eqUipment to determine the total radiation dose experienced since firing. Particular attention was paid to the form of the radiation dose dependence of samples from different Sites, and to the stability and reproducibility of TL signals. Coherent thermoluminescence ages were obtained from the sites of Finavon,Craig Phadrig, Dun Lagaidh, Langwell, Knockfarrel and Tap 0 Noth, using feldspar fractions extracted from the samples, and indicate a long time span for the monuments stretching from the 2nd millenium Be to the first millenium AD. This evidence considerably extends the timespan attributable to the monuments and paves the way for further work to establish the relationship between the morphology and chronology of a wider range of sites.

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Spjut, Nora. "The potential disturbance of the 210Pb profile in peat cores by roots and the implications for 210Pb dating". Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-172414.

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At this moment there is a gap in information regarding the affect roots might have on 210Pb distribution in peat cores and in turn the obtained chronologies by 210Pb dating. Therefore, four peat cores were collected from the snow manipulation study site within the mire complex Storflaket (68°20048″N, 18°58016″E). Two cores from snow fence plots, which has experienced root growth due to permafrost thaw, and 2 cores from control plots. 210Pb distribution and the provided 210Pb chronologies were then compared with root content within and between the cores. In two of the cores (C5 and SF2) did subsurface peaks in the 210Pb activity profile follow the distribution profile of the dwarf shrub roots. The same pattern was not seen with Eriophorum roots. This indicates that presence of dwarf root with their shallow and horizontally growth can affect the 210Pb profile by horizontal translocation of 210Pb. The chronologies obtained by the CF:CS and CRS dating models could not be validated for the C5 core which suggest that dwarf shrub roots also can affect the 21oPb dating.

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Montano, Damaris. "Carbonate U-Pb dating via LA-ICPMS : insights into chronostratigraphy in lacustrine settings". Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS545.

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Les dépôts lacustres font l'objet d'études approfondies car ils sont propices à l’enregistrement des modifications de nombreux facteurs environnementaux (changement climatique, modification du couvert végétal…), et également car ils renferment des ressources en matière première de toute première importance. Cependant, les reconstructions chronostratigraphiques dans ces contextes sont généralement entravées par la rareté des données permettant d’établir l'âge des dépôts de manière continue. L'objectif principal de ce projet de thèse est d'examiner les avantages et les limites de la datation au carbonate U-Pb (LA-ICPMS) (méthode LAcarb) comme un nouvel outil chronostratigraphique pour les dépôts lacustres. Le deuxième objectif est d'étudier plus précisément le potentiel de datation de la méthode en analysant sa capacité à établir un âge avec résolution temporelle pertinente en fonction des différents types de carbonates et de minéralogies. Pour atteindre ces objectifs, plusieurs phases carbonatées (microbialites, ooides, oncoides) et ciments diagenétiques ont été collectés dans deux exemples lacustres fossiles ayant un âge absolu relativement bien établit: le Miocène du bassin du cratère Ries (SW Allemagne) et la formation Yacoraite (Crétacé-Paléogène) du bassin de Salta (NW de l'Argentine). Une étude sédimentologique et diagenétique s’appuyant sur des analyses pétrographiques et des isotopes stables de l’oxygène (O) de du carbone (C), a permis de sélectionner les phases carbonatées les plus précoces. Ce travail a été réalisé afin de maximiser les chances d’avoir préservé la composition géochimique originelle en U-Pb des fluides en présence lors du dépôt. Dans le bassin du cratère Ries, la méthode LAcarb a fourni des âges précis qui ont permis des corrélations chronostratigraphiques à une résolution temporelle de l’ordre de la séquence stratigraphique du 3e ordre (0,5 à 5 Ma). Dans le cadre de la formation Yacoraite, deux modèles d'âge ont été obtenus le long d'une coupe stratigraphique de référence. L'un est dérivé de la géochronologie des zircons extraits des dépôts de cendre volcaniques intercalés dans la formation Yacoraite (modèle d'âge maximum des dépôts; MDA). Le second est dérivé de la méthode LAcarb (modèle d'âge minimum des dépôts; MIDA). Les deux modèles se superposent remarquablement et permettent de décrire une même dynamique des taux de sédimentation avec une résolution temporelle d'environ 0,9 à 2% (2σ). L'âge des dépôts révisé pour la formation Yacoraite a ensuite été intégré dans un modèle chronostratigraphique combinant les données biostratigraphiques, hemiostratigraphiques et magnétostratigraphiques issues de la littérature. La localisation de la limite Crétacé-Paléogène (KPg) a bien été confortée dans la formation Yacoraite. De plus, la révision des âges de la partie sommitale de la formation Yacoraite a également permis de valider la localisation des deux phases hyperthermiques du Paléocène-Éocène (Paleocene-Eocene Thermal Maximum: PETM, et l’optimum climatique de l’Eocène; EECO) dans les deux formations sus-jacentes. Une analyse statistique a ensuite été réalisée sur la base des âges de 80 phases carbonatées de la formation Yacoraite. Les microbialites ont fourni les plus faibles succès en potentiel de datation (41 % d'âges cohérents avec le modèle MDA) ainsi que les plus basses précisions concernant l'âge (2σ <10 %). A l’inverse, les ciments lacustres ont été couronnés des meilleurs potentiels de datation (64 % d'âges cohérents avec le modèle MDA) avec des âges de meilleure précision. De plus, les phases dominées par la calcite ont généralement fourni des âges plus précis que les phases dolomitiques. Les avancées concernant les potentialités et les limites associées à la méthode LAcarb ont ainsi permis de proposer au travers de cette thèse une méthode complète pour construire un modèle d'âge robuste des dépôts en milieu lacustre. Les perspectives de ces travaux sont multiples, avec par exemple [...]
Lacustrine deposits are extensively investigated because they play a pivotal role as environmental recorders and host valuable economic resources. However, chronostratigraphic reconstructions in these settings are usually hampered by the scarcity of data required to establish the depositional age of the system. The prime objective of this PhD project was examining benefits and limitations of carbonate U-Pb (LA-ICPMS) dating (LAcarb) as new chronostratigraphic tool for lacustrine deposits. The second objective was to investigate the dating potential, in terms of dating success and time resolution, of various carbonate types and mineralogies with the aim to better organize future LAcarb based research. To achieve these goals, depositional (microbialites, ooids, oncoids) and early diagenetic carbonate phases of known absolute age were collected from two lacustrine settings: the Ries Crater basin (Miocene, SW Germany) and the Yacoraite formation (Fm.) from the Salta rift basin (Cretaceous-Paleogene, NW Argentina). A sedimentologic and diagenetic study based on petrography and Oxygen (O) and Carbon (C) stable isotope analysis allowed to select carbonate phases that most possibly preserved the pristine U-Pb geochemical composition and consequently inform on the timing of deposition. In the Ries Crater basin, LAcarb provided accurate ages that allowed chronostratigraphic correlations at a time resolution of the 3rd order stratigraphic sequence (0.5–5Ma). In the framework of the Yacoraite Fm., two depositional age depth model were obtained along a stratigraphic section. One derived from zircon (ash layer) geochronology (maximum depositional age depth model; MDA depth model) and the other from LAcarb (minimum depositional age depth model; MIDA depth model). The two models remarkably overlap and describe the same sedimentation rate dynamic with a time resolution between 0.9 and 2% (2σ). The revised depositional age of the Yacoraite Fm. was then integrated in a chronostratigraphic model merging biostratigraphic, chemostratigraphy and magnetostratigraphy data from literature. Accordingly, the KPg limit was interpreted to be located in the Yacoraite Fm. whereas the two Paleocene-Eocene hyperthermals (Paleocene-Eocene Thermal Maximum, PETM; early Eocene Climate Optimum, EECO) were identified in the two overlying formations. A statistical analysis was achieved based on the ages of 80 carbonate phases from the Yacoraite Fm. Microbialites provided the lowest dating success (41% ages consistent with the MDA depth model) and age precision (2σ < 10%) in contrast with lacustrine cements that yielded the highest dating success (64% ages consistent with MDA depth model) and age precision (2σ < 3%). Furthermore, calcitic phases usually provided more precise ages than dolomitic phases. The better comprehension of potentialities and limitations of LAcarb acquired in this PhD allowed to propose a workflow to build a robust depositional age depth model in lacustrine settings. Three possible perspective scenarios were introduced: 1) the study of the Ries Crater basin as analogue of paleolakes on Mars; 2) the use of LAcarb to select pristine carbonates for chronostratigraphic studies; and 3) basin scale chronostratigraphic correlations in the Yacoraite Fm

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Pearson, Charlotte L. "Volcanic eruptions, tree rings and multielemental chemistry : an investigation of dendrochemical potential for the absolute dating of past volcanism". Thesis, University of Reading, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398403.

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Pearson, Charlotte L. "Volcanic eruptions, tree rings and multielemental chemistry : an investigation of dendrochemical potential for the absolute dating of past volcanism /". Oxford : J. and E. Hedges, 2006. http://catalogue.bnf.fr/ark:/12148/cb40945515g.

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Qin, Jiashuo. "Online Dating and the Function of Anticipating Comparisons between Self-Presentation Report Veridicality and Potential Face-to-Face Interaction on Impression Management". Ohio University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1460394724.

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Schmidt, Christoph [Verfasser], Ulrich [Akademischer Betreuer] Radtke, Ludwig [Akademischer Betreuer] Zöller y Jörg [Akademischer Betreuer] Grunert. "Luminescence dating of heated silex - Potential to improve accuracy and precision and application to Paleolithic sites / Christoph Schmidt. Gutachter: Ulrich Radtke ; Ludwig Zöller ; Jörg Grunert". Köln : Universitäts- und Stadtbibliothek Köln, 2013. http://d-nb.info/1038485479/34.

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Schmidt, Christoph Verfasser], Ulrich [Akademischer Betreuer] Radtke, Ludwig [Akademischer Betreuer] [Zöller y Jörg [Akademischer Betreuer] Grunert. "Luminescence dating of heated silex - Potential to improve accuracy and precision and application to Paleolithic sites / Christoph Schmidt. Gutachter: Ulrich Radtke ; Ludwig Zöller ; Jörg Grunert". Köln : Universitäts- und Stadtbibliothek Köln, 2013. http://nbn-resolving.de/urn:nbn:de:hbz:38-51099.

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Libros sobre el tema "Dating potential"

1946-, Lowe J. J. y Quaternary Research Association, eds. Radiocarbon dating: Recent applications and future potential. Cambridge: Wiley on behalf of the Quaternary Research Association, 1996.

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1946-, Lowe J. J. y Quaternary Research Association, eds. Radiocarbon dating: Recent applications and future potential. Cambridge: Quaternary Research Association, 1991.

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Pearson, Charlotte L. Volcanic eruptions, tree rings and multielemental chemistry: An investigation of dendrochemical potential for the absolute dating of past volcanism. Oxford, England: John and Erica Hedges, 2006.

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Pond, David. Mapping your romantic relationships: Discover your love potential. St. Paul, Minn: Llewellyn Publications, 2004.

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Canada, Atomic Energy of. Laser Enrichment of Carbon-14 and Its Potential Application to Groundwater Dating. S.l: s.n, 1986.

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Sozio, Donna. Never trust a man in alligator loafers: What his shoes say about his true love potential. New York: Citadel, 2007.

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Fattahi, Morteza. Luminescence dating of quaternary volcanic events: A review of previous Investigations and some observations on the potential of red luminescence emissions. Oxford: Oxford Luminescence Research Group, School of Geography, University of Oxford, 2001.

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Fattahi, Morteza. Luminescence dating of quaternary volcanic events: A review of previous investigations and some observations on the potential of red luminescence emissions. Oxford: University of Oxford, Oxford Luminescence Research Group, School of Geography, 2001.

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Lee, Erika. D.U.M.P. It: Dating under My Potential. Dr. Erika Lee, 2021.

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Radiocarbon dating: Recent applications and future potential. Chichester, England: Published on behalf of the Quaternary Research Assoc. by John Wiley & Sons, 1996.

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Capítulos de libros sobre el tema "Dating potential"

Taylor, R. E., Peter J. Slota, Walter Henning, Walter Kutschera y Michael Paul. "Radiocalcium Dating: Potential Applications in Archaeology and Paleoanthropology". En Advances in Chemistry, 321–35. Washington, DC: American Chemical Society, 1989. http://dx.doi.org/10.1021/ba-1988-0220.ch017.

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Balestrieri, M. L., G. Bigazzi, V. Bouška, E. Labrin, J. C. Hadler N., N. Kitada, A. M. Osorio A., G. Poupeau, K. Wadatsumi y A. Zúñiga. "Potential Glass Age Standards for Fission-Track Dating: An Overview". En Advances in Fission-Track Geochronology, 287–304. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-015-9133-1_18.

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Ringbom, Å., K. Gustavsson, A. Lindroos, A. Sveinbjörnsdottir y J. Heinemeier. "Mortar dating — a method with a potential for the future". En Textes et Etudes du Moyen Âge, 195–207. Turnhout: Brepols Publishers, 2004. http://dx.doi.org/10.1484/m.tema-eb.3.2093.

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Chelle-Michou, Cyril y Urs Schaltegger. "U–Pb Dating of Mineral Deposits: From Age Constraints to Ore-Forming Processes". En Isotopes in Economic Geology, Metallogenesis and Exploration, 37–87. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27897-6_3.

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AbstractThe timing and duration of ore-forming processes are amongst the key parameters required in the study of mineral systems. After more than a century of technical developments, innovations and investigation, the U–Pb system arguably is the most mature radioisotopic system in our possession to conduct absolute dating of a wide range of minerals across geological environments and metallogenic processes. Here, we review the basics of U–Pb geochronology, the key historic developments of the method, and the most commonly used analytical techniques (including data reduction, Pb-correction, uncertainty propagation and data presentation) and minerals while pointing out their respective advantages, weaknesses and potential pitfalls. We also highlight critical aspects that need to be considered when interpreting a date into the age of a geological process (including field and petrographic constraints, open-system behavior, handling and interpretation of uncertainties). While U–Pb geochronology is strongly biased toward zircon dating, we strive to highlight the great diversity of minerals amenable to U–Pb dating (more than 16 mineral species) in the context of mineral systems, and the variety of geological events they can potentially date (magmatism, hydrothermal activity, ore-formation, cooling, etc.). Finally, through two case studies we show (1) how multi-mineral geochronological studies have been used to bracket and decipher the age of multiple geological events associated with the world-class Witwatersrand gold province, and (2) how rather than the absolute age, the duration and rate of the mineralizing event at porphyry copper deposits opens new avenues to understand ore-forming processes and the main controls on the size of such deposits. The improving precision, accuracy and spatial resolution of analyses in tandem with high-quality field and petrographic observations, numerical modelling and geochemical data, will continue to challenge paradigms of ore-forming processes and contribute significant breakthroughs in ore deposit research and potentially to the development of new exploration tools.

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Chiti, Michela y Stefano Pagliara. "Da Firenze al mare: Leonardo e l’Arno tra ingegneria idraulica e visione territoriale". En Lo sguardo territorialista di Leonardo, 149–60. Florence: Firenze University Press, 2023. http://dx.doi.org/10.36253/978-88-5518-514-1.17.

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The vision related to the territorial project of the navigable canal, which was supposed to connect the cities of Florence, Prato and Pistoia and, passing through the Nievole Valley, reach the Arno and then the sea, stems from the study of some drawings by Leonardo da Vinci, dating from around 1503-1504. The article retraces the reading of the various signs found, in which there appears to be a mixture between the dimension of cartographic survey and the project idea, in a dialectic between territorial potential and criticalities, according to the multidisciplinary approach to territorial science that was explored by Leonardo.

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Pavlović, Jelena, Ana Šabanović y Nataša Ćuković-Ignjatović. "Energy Efficiency Improvement in Industrial Brownfield Heritage Buildings: Case Study of “Beko”". En The Urban Book Series, 821–30. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-29515-7_73.

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AbstractBrownfield sites often form on industrial sites of once successful companies dating from the era of industrialization, due to loss of active function and despite their historical significance. Accompanied by urban decline, they contribute to continuous pollution, decrease in economic values, as well as loss of local identity. On the other hand, they represent a reserve of space of great potential in central urban locations. The main purpose of this research is to examine possibilities for improvement by their reuse, while preserving built-in cultural values and acknowledging contemporary requirements. A review of contemporary literature considering the concept of brownfield sites provides a starting theoretical basis for understanding their strengths and potentials, as well as the problems when redeveloping such sites. The subject of the research is exploring strategies for brownfield revitalization while reactivating industrial buildings through adaptive reuse. This includes sustainable solutions in accordance with modern requirements, especially energy efficiency, as one of the main concepts of existing building stock improvement that recognizes importance of responsible energy resources management. The paper includes a case study of the previously devastated brownfield site of “Beko” industrial building, located in the central urban area of Belgrade. Its former state, as well as parts of the documentation for reconstruction and its conversion into a modern business facility “Kalemegdan Business Center,” is thoroughly analyzed, emphasizing the positive results of energy efficiency improvements despite the restrictions intended for historic buildings alterations. The aim of the paper is to create a theoretical platform that provides firm arguments in favor of realizing the importance and potentials of industrial brownfield sites revitalization at present, as well as the constraints regarding its practical implementation considering buildings of cultural value.

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Bauch, Martin. "Geoengineering and the Middle Ages: Lessons from Medieval Volcanic Eruptions for the Anthropocene". En Perspectives on Public Policy in Societal-Environmental Crises, 111–22. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94137-6_8.

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AbstractThe existential challenge of mitigating anthropogenic climate change encouraged serious discussions on geoengineering approaches. One of them, Solar Radiation Management (SRM), would mean inserting aerosols into the atmosphere, thus imitating and perpetuating the cooling effects of large volcanic events, such as the 1815 Tambora eruption. However, artificially inserting sulphur aerosols into the atmosphere is connected with considerable uncertainties. One of them, pointed out by several climate scientists, is the different effects on temperature and precipitation in different parts of the globe. These are not the only ones, though. As the largest volcanic eruptions have taken place during the medieval times (ca 500–1500 CE), historical research can reveal further uncertainties in dating these eruptions and their connected socio-environmental effects, and hence on the actual climate and social impacts we might expect from SRM. A combination of humanist and scientific research on past volcanic eruptions therefore has the potential to produce a more precise understanding of past volcanic eruptions and their climatic consequences. As long as we do not acquire a consistent multi-disciplinary perspective on past volcanic eruptions, extreme caution should be taken before investing in geoengineering measures that include the artificial injection of sulphur aerosols in the atmosphere.

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Scioli, Anthony. "The Psychology of Hope: A Diagnostic and Prescriptive Account". En Historical and Multidisciplinary Perspectives on Hope, 137–63. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46489-9_8.

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Abstract In this chapter, I review psychology’s contributions to the study of hope. To close potential gaps in this interdisciplinary volume, I include work in psychiatry and nursing. The nearly 400-year history of psychological reflections on hope reveals extended stretches of neglect, alternating with brief flashes of interest. Shifting scientific paradigms are partly to blame. However, I suggest that the greatest challenge for investigators seeking scientific consensus on the topic may be cultural and sociopolitical. I begin with a review of the most significant writings and research on hope, dating back to the seventeenth century. I examine goal-related approaches in greater depth, due to their strong influence on the field of psychology. The latter half of this chapter is more critical and prescriptive. For a deeper commentary, I rely on Markus’s (Meas Interdisciplinary Res Perspect 6:54–77, 2008) distinction between constructs and concepts as well as Danziger’s (Naming the mind: How psychology found its language. Sage Publications, 1997) observation on how psychology found its lexicon. This middle, diagnostic section includes a review of philosophy of science criteria for evaluating theories. I transition to general prescriptions for achieving a better understanding of hope, organized around Bacon’s “four idols” of the mind, and add specific suggestions for future research. I conclude with a summary of recent work within our hope lab.

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Miles, Sam. "Let’s (not) Go Outside: Grindr, Hybrid Space, and Digital Queer Neighborhoods". En The Life and Afterlife of Gay Neighborhoods, 203–20. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66073-4_9.

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AbstractDevelopments in mobile digital technologies are disrupting conventional understandings of space and place for smartphone users. One way in which location-based media are refiguring previously taken-for-granted spatial traditions is via GPS-enabled online dating and hook-up apps. For sexual minorities, these apps can reconfigure any street, park, bar, or home into a queer space through a potential meeting between mutually attracted individuals, but what does this signify for already-existing queer spaces? This chapter examines how smartphone apps including Grindr, Tinder, and Blued synthesize online queer encounter with offline physical space to create a new hybrid terrain predicated on availability, connection, and encounter. It is also a terrain that can sidestep established gay neighborhoods entirely. I explore how this hybridization impacts on older, physically rooted gay neighborhoods and the role that these neighborhoods have traditionally played in brokering social and sexual connection for sexual minorities. Few would deny that location-based apps have come to play a valuable role in multiplying opportunities for sexual minorities. However, the stratospheric rise of these technologies also provokes questions about their impact on embodied encounter, queer community, and a sense of place. A decade on from Grindr’s release, this chapter evaluates the impact of location-based media on gay spaces and reflects on what the increasing hybridization of online and offline spaces for same-sex encounter might mean for queer lives of the future.

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Pelzl, Ludwig y Jaco Zuijderduijn. "Or do you prefer cash? Pensions in kind in pre-modern Germany and the Low Countries". En Datini Studies in Economic History, 237–55. Florence: Firenze University Press, 2024. http://dx.doi.org/10.36253/979-12-215-0347-0.15.

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In the later Middle Ages and early modern period, many European hospitals developed into commercial retirement homes that allowed investors to pay for lifelong food and lodging. Their clients consisted mainly of elderly citizens who decided to spend their final years enjoying a pension, often living by themselves or occasionally with a spouse. Corrodies can best be understood as life annuities in kind: food and lodging were provided until the corrodian – or the longest-living spouse of a couple – passed away. Demand was so great that institutions are known to have had waiting lists or to raffle seats among potential investors. We claim that corrodies allowed investors who were looking to secure their livelihood to mitigate the risks that came with financial instruments that paid in currency. Our paper contributes to a historiography that claims that payments in kind should not be considered ‘backwards’ but rather as techniques that offered protection against the whims of the market.

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Actas de conferencias sobre el tema "Dating potential"

Lowell, Thomas V., Andy J. Breckenridge y Meredith A. Kelly. "MATCHING THE DATING RESOLUTION OF GLACIER BEHAVIOR TO DATING RESOLUTION OF POTENTIAL FORCING". En GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-323564.

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Connors, James J. "POTENTIAL FOR AGE-DATING LANDFILL LEACHATE RELEASES USING PFAS COMPOUNDS". En GSA Connects 2023 Meeting in Pittsburgh, Pennsylvania. Geological Society of America, 2023. http://dx.doi.org/10.1130/abs/2023am-390320.

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Soemardi, Calvin Hartono, Mario Indra Radityaputra, Raiza Rahman, Alexander Agung Santoso Gunawan y Karen Etania Saputra. "Testing How Dating Apps Recommend a Potential Matches for User". En 2023 8th International Conference on Information Technology and Digital Applications (ICITDA). IEEE, 2023. http://dx.doi.org/10.1109/icitda60835.2023.10427363.

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Hofmann, Florian, Devin McPhillips, Katherine J. Kendrick y Kenneth A. Farley. "THE POTENTIAL OF FINE-GRAINED PEDOGENIC IRON-OXIDES FOR COSMOGENIC 3HE DATING". En GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-307549.

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Hou, Kejun y Qian Wang. "A Potential Reference Material for in situ U-Pb Dating of Columbite-Tantalite". En Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.1066.

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Rodrigues, Kathleen, Amanda Keen-Zebert, Sebastien Huot y Ken Adams. "TESTING THE POTENTIAL OF THERMOLUMINESCENCE DATING OF VOLCANIC GLASS WITH KNOWN-AGE SAMPLES". En GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-308037.

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Burke, R. M., H. R. A. Sawyer, E. S. Phillips, Gary D. Simpson y Jody L. Mielke. "THE EOLIAN DEPOSIT ON MARINE TERRACES – A POTENTIAL DATING TOOL FOR COASTAL NORTH AMERICA". En 112th Annual GSA Cordilleran Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016cd-274721.

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Balbas, Andrea y Kenneth A. Farley. "HELIUM RETENTION IN SPELEOTHEMS AND ITS INFERENCES FOR POTENTIAL U/TH-HE AGE DATING". En GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-319766.

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Aqazadeh, A., M. Fattahi, R. T. Walker, M. Talebian, R. A. Sloan y M. M. Khatib. "Investigation of the Potential of IRSL Single Aliquot and Single Grain Feldspar for Dating Qanat Irrigation Systems". En 73rd EAGE Conference and Exhibition incorporating SPE EUROPEC 2011. Netherlands: EAGE Publications BV, 2011. http://dx.doi.org/10.3997/2214-4609.20149677.

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Carnero-Bravo, Vladislav, Claude Hilaire-Marcel, Bassam Ghaleb, Anne De Vernal, Jade Falardeau, LÉO Chassiot, Jorien Vonk, George Tanski, Hugues Lantuti y Michael Fritz. "Potential and Limitations of 228Th/232Th Disequilibria for the Dating of High Sedimentation Marine Sequences: Example from Herschel Basin, Beaufort Sea". En Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.325.

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Informes sobre el tema "Dating potential"

Vakhnina, I. L., M. O. Sidorova y Z. Y. Zharnikov. Potential Capacity of the Application of the Year-ring Analysis for Dating of Wooden Architecture and Archaeological Materials in Chita. ZO RGO notes, 2019. http://dx.doi.org/10.18411/2304-7356-2019-136-58-65.

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Butler, Afrachanna, Catherine Thomas, Alyssa Calomeni, Andrew McQueen y William Slack. Microseira wollei (M. wollei) blooms in freshwater ecosystems in Lake St. Clair (Michigan, USA)–impacts and possible management approaches. Engineer Research and Development Center (U.S.), septiembre de 2023. http://dx.doi.org/10.21079/11681/47648.

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The proliferation and shoreline accumulation of the filamentous biphasic cyanobacterium, Microseira wollei (M. wollei) (previously classified as Lyngbya wollei), have become an increasing problem in the Great Lakes, both for aesthetic reasons and its potential to harbor harmful bacteria and pathogens (Vijayavel et al. 2013). Occurrences have been reported and studies have also been conducted in the southeastern US where M. wollei has become a nuisance in recent years and is known to produce toxins (Hudon et al. 2014). Reports of M. wollei proliferations in the eastern US have been identified in the Manitoba lakes (Macbeth 2004), in Lake Erie from Maumee Bay (Bridgeman and Penamon 2010), in Lake St. Clair near Detroit (Vijayavel et al. 2013), and throughout the St Lawrence River (Vis et al. 2008; Lévesque et al. 2012). M. wollei has become a serious nuisance for marinas, public beaches, and lakefront property owners. In addition, M. wollei appears to have the ability to produce a wide range of toxins, but the conditions promoting their production, type, and concentration are poorly known (Hudon et al. 2014). Occurrences of large algal mats matching characteristics of M. wollei have been observed along the northwest shore and nearshore waters of the beach at Lake St. Clair dating back to 2010. To date, a comprehensive study detailing the potential impacts M. wollei has on freshwater ecosystems in the Great Lakes River, particularly Lake St. Clair is lacking. Further, management solutions are not well understood. This technical note (TN) reviews the potential causes of M. wollei blooms and their ecological impacts on aquatic systems and assesses the management options available to eliminate or minimize the impacts of these blooms.

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Hadlari, T. Geo-mapping for Energy and Minerals program: activities in the Sverdrup Basin, Canadian Arctic Islands. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/326088.

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Advancements in the establishment of the geological framework of the Sverdrup Basin resulting from the Geo-mapping for Energy and Minerals program can be grouped under the main topics of tectonostratigraphy, crosslinking of biostratigraphy and chronostratigraphy, integration of igneous records with newly refined stratigraphy, and effects of global climatic environments on hydrocarbon source rocks in geological time. New discoveries of volcanic ash beds throughout much of the Triassic stratigraphic section required new tectonic interpretations involving a magmatic arc northwest of the basin that was likely involved in the opening of the Amerasia Basin. Modern approaches to biostratigraphy calibrated by radiometric age dating of volcanic ash beds made global correlations to chronostratigraphic frameworks and tectonic models possible. Correlation of the stratigraphy and recent geochronology of the High Arctic large igneous province (HALIP) places the main pulse of mafic magmatism in a postrift setting. Finally, the depositional setting of source rocks in the Sverdrup Basin is explained in terms of oceanographic factors that are related to the global environment. All of these advancements, including hints of undefined and relatively young structural events, lead to the conclusion that the hydrocarbon potential of the Sverdrup Basin has not been fully tested by historical exploration drilling.

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Hunter, Fraser y Martin Carruthers. Iron Age Scotland. Society for Antiquaries of Scotland, septiembre de 2012. http://dx.doi.org/10.9750/scarf.09.2012.193.

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The main recommendations of the panel report can be summarised under five key headings:  Building blocks: The ultimate aim should be to build rich, detailed and testable narratives situated within a European context, and addressing phenomena from the longue durée to the short-term over international to local scales. Chronological control is essential to this and effective dating strategies are required to enable generation-level analysis. The ‘serendipity factor’ of archaeological work must be enhanced by recognising and getting the most out of information-rich sites as they appear. o There is a pressing need to revisit the archives of excavated sites to extract more information from existing resources, notably through dating programmes targeted at regional sequences – the Western Isles Atlantic roundhouse sequence is an obvious target. o Many areas still lack anything beyond the baldest of settlement sequences, with little understanding of the relations between key site types. There is a need to get at least basic sequences from many more areas, either from sustained regional programmes or targeted sampling exercises. o Much of the methodologically innovative work and new insights have come from long-running research excavations. Such large-scale research projects are an important element in developing new approaches to the Iron Age.  Daily life and practice: There remains great potential to improve the understanding of people’s lives in the Iron Age through fresh approaches to, and integration of, existing and newly-excavated data. o House use. Rigorous analysis and innovative approaches, including experimental archaeology, should be employed to get the most out of the understanding of daily life through the strengths of the Scottish record, such as deposits within buildings, organic preservation and waterlogging. o Material culture. Artefact studies have the potential to be far more integral to understandings of Iron Age societies, both from the rich assemblages of the Atlantic area and less-rich lowland finds. Key areas of concern are basic studies of material groups (including the function of everyday items such as stone and bone tools, and the nature of craft processes – iron, copper alloy, bone/antler and shale offer particularly good evidence). Other key topics are: the role of ‘art’ and other forms of decoration and comparative approaches to assemblages to obtain synthetic views of the uses of material culture. o Field to feast. Subsistence practices are a core area of research essential to understanding past society, but different strands of evidence need to be more fully integrated, with a ‘field to feast’ approach, from production to consumption. The working of agricultural systems is poorly understood, from agricultural processes to cooking practices and cuisine: integrated work between different specialisms would assist greatly. There is a need for conceptual as well as practical perspectives – e.g. how were wild resources conceived? o Ritual practice. There has been valuable work in identifying depositional practices, such as deposition of animals or querns, which are thought to relate to house-based ritual practices, but there is great potential for further pattern-spotting, synthesis and interpretation. Iron Age Scotland: ScARF Panel Report v  Landscapes and regions:  Concepts of ‘region’ or ‘province’, and how they changed over time, need to be critically explored, because they are contentious, poorly defined and highly variable. What did Iron Age people see as their geographical horizons, and how did this change?  Attempts to understand the Iron Age landscape require improved, integrated survey methodologies, as existing approaches are inevitably partial.  Aspects of the landscape’s physical form and cover should be investigated more fully, in terms of vegetation (known only in outline over most of the country) and sea level change in key areas such as the firths of Moray and Forth.  Landscapes beyond settlement merit further work, e.g. the use of the landscape for deposition of objects or people, and what this tells us of contemporary perceptions and beliefs.  Concepts of inherited landscapes (how Iron Age communities saw and used this longlived land) and socal resilience to issues such as climate change should be explored more fully.  Reconstructing Iron Age societies. The changing structure of society over space and time in this period remains poorly understood. Researchers should interrogate the data for better and more explicitly-expressed understandings of social structures and relations between people.  The wider context: Researchers need to engage with the big questions of change on a European level (and beyond). Relationships with neighbouring areas (e.g. England, Ireland) and analogies from other areas (e.g. Scandinavia and the Low Countries) can help inform Scottish studies. Key big topics are: o The nature and effect of the introduction of iron. o The social processes lying behind evidence for movement and contact. o Parallels and differences in social processes and developments. o The changing nature of houses and households over this period, including the role of ‘substantial houses’, from crannogs to brochs, the development and role of complex architecture, and the shift away from roundhouses. o The chronology, nature and meaning of hillforts and other enclosed settlements. o Relationships with the Roman world

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Joly, Kyle y Matthew Cameron. Caribou vital sign annual report for the Arctic Network Inventory and Monitoring Program: September 2022?August 2023. National Park Service, 2023. http://dx.doi.org/10.36967/2301773.

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Caribou (Rangifer tarandus) are an integral part of the ecological and cultural fabric of northwest Alaska. Western Arctic Herd (WAH) caribou roam over this entire region, including all 5 Arctic Network (ARCN) Inventory and Monitoring Program?s National Park units. Conservation of healthy caribou populations is specifically mentioned within the enabling legislation (Alaska National Interested Lands Conservation Act or ANILCA) for 3 of these park units and is of importance to subsistence hunters. Caribou are, by far, the most abundant large mammal in northwest Alaska and are famous for their long-distance migrations and large population oscillations. For these reasons, the ARCN parks chose WAH caribou as a Vital Sign for long-term monitoring. This report documents the monitoring results of this Vital Sign during its 14th year (September 2022?August 2023) of implementation. Results from the previous years of monitoring are also included for ease of comparison. Periodic syntheses of these data will be performed and reported on as appropriate. National Park Service (NPS) monitoring of the WAH is done in conjunction and cooperation with the Alaska Department of Fish and Game (ADFG). Thanks to a 2015 data sharing agreement, the report includes data funded by the ADFG dating back to September 2013. That particular year was chosen as it represents when the ADFG started deploying a substantial number of GPS collars on an 8-hour relocation schedule. Monitoring of the herd relies heavily on the use of Global Positioning System (GPS) radio telemetry collars that are capable of transmitting location data to a satellite. Given the extremely remote area that the WAH inhabits, this system provides the most efficient and accurate means to track individual caribou. These data are utilized to monitor the timing and location of migrations, as well as seasonal distributions of WAH caribou. Monitoring movement and the phenology of movement is perhaps the simplest means to track the influences of climate change, natural perturbations, development, and other potential impacts on a species?an analysis of which is outside the scope of this current report. This report also documents the NPS commitment and involvement with the WAH Working Group. The group is composed of important stakeholders including representatives for rural villages, sport hunters, conservationists, hunting guides, hunting transporters, and reindeer herders. In addition, all the agencies charged with managing the WAH, including the ADFG, NPS, US Fish and Wildlife Service (FWS) and Bureau of Land Management (BLM), serve as advisors to the group. Information gathered by the Caribou Vital Sign monitoring program are intended to supplement and complement existing data streams gathered by the other cooperating agencies and will be important in future management decisions.

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Kulhanik, Andrea, Martin Unger y Lorenz Lassnig. Potentiale und Dynamiken privater Angebote und Beteiligungen im österreichischen Bildungswesen mit speziellem Fokus auf die Privatuniversitäten. Rat für Forschung und Technologieentwicklung, junio de 2020. http://dx.doi.org/10.22163/fteval.2020.612.

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Ziel der vorliegenden Studie war es, einen Überblick über den Stand der Forschung zu Privatisierung im Bildungsbereich zu erstellen, Daten zur privaten Hochschulbildung in Österreich aufzubereiten und Einschätzungen von ExpertInnen einzuholen, welche Ent-wicklungen sich für die private Hochschulbildung in Österreich abzeichnen und was dabei berücksichtigt werden sollte. Insgesamt zeigt sich sowohl in der österreichischen Empirie als auch in den Interviews eine große Übereinstimmung mit den im internationalen Literaturreview aufgefunden Trends.

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King, E. L., A. Normandeau, T. Carson, P. Fraser, C. Staniforth, A. Limoges, B. MacDonald, F. J. Murrillo-Perez y N. Van Nieuwenhove. Pockmarks, a paleo fluid efflux event, glacial meltwater channels, sponge colonies, and trawling impacts in Emerald Basin, Scotian Shelf: autonomous underwater vehicle surveys, William Kennedy 2022011 cruise report. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/331174.

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A short but productive cruise aboard RV William Kennedy tested various new field equipment near Halifax (port of departure and return) but also in areas that could also benefit science understanding. The GSC-A Gavia Autonomous Underwater Vehicle equipped with bathymetric, sidescan and sub-bottom profiler was successfully deployed for the first time on Scotian Shelf science targets. It surveyed three small areas: two across known benthic sponge, Vazella (Russian Hat) within a DFO-directed trawling closure area on the SE flank of Sambro Bank, bordering Emerald Basin, and one across known pockmarks, eroded cone-shaped depression in soft mud due to fluid efflux. The sponge study sites (~ 150 170 m water depth) were known to lie in an area of till (subglacial diamict) exposure at the seabed. The AUV data identified gravel and cobble-rich seabed, registering individual clasts at 35 cm gridded resolution. A subtle variation in seabed texture is recognized in sidescan images, from cobble-rich on ridge crests and flanks, to limited mud-rich sediment in intervening troughs. Correlation between seabed topography and texture with the (previously collected) Vazella distribution along two transects is not straightforward. However there may be a preference for the sponge in the depressions, some of which have a thin but possibly ephemeral sediment cover. Both sponge study sites depict a hereto unknown morphology, carved in glacial deposits, consisting of a series of discontinuous ridges interpreted to be generated by erosion in multiple, continuous, meandering and cross-cutting channels. The morphology is identical to glacial Nye, or mp;lt;"N-mp;lt;"channels, cut by sub-glacial meltwater. However their scale (10 to 100 times mp;lt;"typicalmp;gt;" N-channels) and the unique eroded medium, (till rather than bedrock), presents a rare or unknown size and medium and suggests a continuum in sub-glacial meltwater channels between much larger tunnel valleys, common to the eastward, and the bedrock forms. A comparison is made with coastal Nova Scotia forms in bedrock. The Emerald Basin AUV site, targeting pockmarks was in ~260 to 270 m water depth and imaged eight large and one small pockmark. The main aim was to investigate possible recent or continuous fluid flux activity in light of ocean acidification or greenhouse gas contribution; most accounts to date suggested inactivity. While a lack of common attributes marking activity is confirmed, creep or rotational flank failure is recognized, as is a depletion of buried diffuse methane immediately below the seabed features. Discovery of a second, buried, pockmark horizon, with smaller but more numerous erosive cones and no spatial correlation to the buried diffuse gas or the seabed pockmarks, indicates a paleo-event of fluid or gas efflux; general timing and possible mechanisms are suggested. The basinal survey also registered numerous otter board trawl marks cutting the surficial mud from past fishing activity. The AUV data present a unique dataset for follow-up quantification of the disturbance. Recent realization that this may play a significant role in ocean acidification on a global scale can benefit from such disturbance quantification. The new pole-mounted sub-bottom profiler collected high quality data, enabling correlation of recently recognized till ridges exposed at the seabed as they become buried across the flank and base of the basin. These, along with the Nye channels, will help reconstruct glacial behavior and flow patterns which to date are only vaguely documented. Several cores provide the potential for stratigraphic dating of key horizons and will augment Holocene environmental history investigations by a Dalhousie University student. In summary, several unique features have been identified, providing sufficient field data for further compilation, analysis and follow-up publications.

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