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1
Skulski, Thomas, Don Francis, and John Ludden. "Volcanism in an arc-transform transition zone: the stratigraphy of the St. Clare Creek volcanic field, Wrangell volcanic belt, Yukon, Canada." Canadian Journal of Earth Sciences 29, no. 3 (March 1, 1992): 446–61. http://dx.doi.org/10.1139/e92-039.
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The St. Clare Creek volcanic field in the southwestern Yukon overlies a tectonic transition in the Wrangell volcanic belt between subduction to the northwest in Alaska and transform faulting along the Duke River fault in the southeast. Two large polygenetic volcanic centres dominated the Miocene landscape of the St. Clare Creek field: the 18–16 Ma Wolverine centre and the 16–10 Ma Klutlan centre. The Wolverine centre evolved from a small alkaline shield volcano at 18 Ma, from which alkaline basalts, hawaiites and mugearites erupted, to a larger composite volcano between 18 and 16 Ma composed of transitional basalt, basaltic trachyandesite, trachyte and rhyolite lavas, and pyroclastic rocks. The youngest Wolverine lavas are calc-alkaline basaltic andesites, andesites, and hybrid lavas (transitional–calc-alkaline). This temporal progression from alkaline through transitional to calc-alkaline volcanism is accompanied by a systematic increase in the degree of silica saturation and decrease in Fe/Si, Nb/Y, and P/Y ratios. Klutlan lavas have lower Nb/Y and P/Y ratios and are characterized by an opposite eruption sequence. The earliest Klutlan lavas (16–13 Ma) erupted from a composite volcano and include calc-alkaline andesite, rhyolite, and hybrid trachyandesite lavas, followed by transitional basaltic trachyandesites, trachyandesites, trachytes, and rhyolites. Klutlan vulcanism between 13 and 11 Ma was dominated by basaltic fissure eruptions on the southern flanks of the earlier centre and include early mildly alkaline basalts followed by more voluminous transitional basalts. Volcanism reverted to a more central type of activity between 11 and 10 Ma and includes calc-alkaline dacite lava followed by transitional basaltic trachyandesite, trachyandesite, and trachyte lavas.The volcanic stratigraphy of the St. Clare Creek field and 40Ar/39Ar geochronological data provide the basis for understanding the origin of St. Clare magmas in a regional tectonic context. Early Wolverine alkaline volcanism largely reflects leaky transform faulting, whereas subsequent transitional and calc-alkaline lavas record the onset of subduction-related volcanism at the margins of the then active Wrangell arc. The opposite eruption sequence at the Klutlan centre records the demise of subduction-related volcanism between 16 and 13 Ma, due to northwestward migration of the subducted plate. Upwelling of asthenospheric mantle in place of the subducted slab led to the generation of transitional basalts between 13 and 11 Ma, which resulted in more evolved lavas between 11 and 10 Ma.
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Sottili, Leandro, Laura Guidorzi, Alessandro Lo Giudice, Anna Mazzinghi, Chiara Ruberto, Lisa Castelli, Caroline Czelusniak, et al. "Macro X-ray fluorescence analysis of XVI-XVII century Italian paintings and preliminary test for developing a combined fluorescence apparatus with digital radiography." ACTA IMEKO 11, no. 1 (March 31, 2022): 8. http://dx.doi.org/10.21014/acta_imeko.v11i1.1088.
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Using portable instruments for the preservation of artworks in heritage science is more and more common. Among the techniques, Macro X-Ray Fluorescence (MA-XRF) and digital radiography (DR) play a key-role in the field, therefore a number of MA-XRF scanners and radiographic apparatuses have been developed for this scope. Recently, the INFN-CHNet group, the network of the INFN devoted to cultural heritage, has developed a MA-XRF scanner for in-situ analyses. The instrument is fully operative, and it has already been employed in museums, conservation centres and out-door fields. In the present paper, the MA-XRF analysis conducted with the instrument on four Italian artworks undertaking conservation treatments at the conservation centre CCR “La Venaria Reale” are presented. Results on the preliminary test to combine DR with MA-XRF in a single apparatus are also shown.
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Fournier, Édith. "«J’ai accouché de ma mère»." Santé mentale au Québec 7, no. 2 (June 12, 2006): 5–18. http://dx.doi.org/10.7202/030134ar.
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Résumé Ce récit relate la mort d'une femme et les émotions de sa fille au cours des différentes étapes qu'elles ont eues à traverser. C'est l'histoire d'une série de métamorphoses de la relation mère-fille à partir de l'apparition des premiers symptômes d'une artério-sclérose cérébrale sévère. On y relate les conflits que font surgir successivement le placement dans une maison pour personnes âgées puis, dans un centre hospitalier pour malades à long terme. Commence alors la lente démarche de réconciliation entre mère et fille, et l'expérience d'une mort qui a été apprivoisée jusque dans le détail du rite funéraire.
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Emeleus, C. H., and V. R. Troll. "The Rum Igneous Centre, Scotland." Mineralogical Magazine 78, no. 4 (August 2014): 805–39. http://dx.doi.org/10.1180/minmag.2014.078.4.04.
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AbstractThe publication of the British Geological Survey memoir on Rum and the Small Isles in 1997 was followed by a period of intense petrological and mineralogical research, leading to some 40 papers, books and other publications. The research progress since then is reviewed here and integrated with the information previously available to provide an overview of the current status of understanding of the centre. New data on the acidic and mixed acid/basic magmas of the early Rum caldera demonstrate that frequent mafic replenishments were the main driver for magmatic activity at Rum right from its initial stages. The caldera is bound by the Main Ring Fault, a structure which probably also exercised an influence on the emplacement of the subsequent basic and ultrabasic intrusions. The later emplacement of gabbros and ultrabasic rocks caused only limited thermal metamorphism of the surrounding Torridonian sandstones, contrasting markedly with the crustal isotope signatures of the early intracaldera ignimbrite magmas and the intense alteration of uplifted masses of Lewisian gneiss within the ring fault. Rare picritic dykes provide an indication of the possible parent magma for the mafic and ultrabasic rocks, but these, as with most other magmatic rocks on Rum, have undergone varying degrees of crustal contamination, involving both Lewisian granulite and amphibolite-type crust but, notably, no Moine metasedimentary compositions as is the case at the nearby Ardnamurchan centre. Detailed textural studies on the gabbroic and ultrabasic rocks allow a distinction between intrusive peridotites and peridotite that forms part of the classic layered cumulate units of Rum and, furthermore, this work and that on the chromite seams and veins in these rocks shows that movement of trapped magma and magma derived from later intrusions, may produce textures regarded previously as of primary cumulate origin. Sulfides in the chromitite seams and ultrabasic rocks, in turn, show possible influences from assimilated Mesozoic sediments. Igneous activity on Rum was short-lived, possibly only between 0.5 and 1 m.y. in duration and commenced at ∼60.5 Ma. The Rum Central Complex was extinct by the time the main activity at the nearby Skye Central Complex commenced (∼59 Ma). From recent apatite fission-track studies it seems probable that Rum, in common with other Palaeogene centres, underwent a brief, but significantly later heating event (∼45 Ma).
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Kuczera, Piotr, Dorota Ciaston-Mogilska, Barbara Oslizlo, Anna Hycki, Andrzej Wiecek, and Marcin Adamczak. "The Prevalence of Metabolic Acidosis in Patients with Different Stages of Chronic Kidney Disease: Single-Centre Study." Kidney and Blood Pressure Research 45, no. 6 (2020): 863–72. http://dx.doi.org/10.1159/000508980.
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<b><i>Background:</i></b> Metabolic acidosis (MA) is one of the most common consequences of CKD. MA is also a risk factor of CKD progression and increased mortality in these patients. <b><i>Aim:</i></b> The aim of this retrospective, cross-sectional study was to assess the prevalence of MA in different stages of CKD and renal replacement therapy (RRT) modalities – haemodialysis (HD) and peritoneal dialysis (PD). Additionally, the relationship between the prevalence of MA and aetiology of kidney disease was analysed. <b><i>Methods:</i></b> One thousand five patients in different stages of CKD, or modalities of RRT were enrolled into this single-centre cross-sectional study. Forty-one patients were ruled out because of oral bicarbonate supplementation. In the remaining 964 patients (698 CKD stages 1–5, 226 HD, 40 PD), venous blood HCO<sub>3</sub><sup>−</sup> concentration, as well as serum Cr and urea concentrations were assessed. MA was diagnosed when blood HCO<sub>3</sub><sup>−</sup> concentration was below 22 mmol/L. <b><i>Results:</i></b> The prevalence of MA increased among all stages of CKD. Patients on HD had lower prevalence of MA in comparison with CKD 5 patients with no RRT (38.5 vs. 56.0%; <i>p</i> = 0.02) In PD patients, the prevalence of MA was significantly lower than in HD patients (2.5 vs. 38.5%; <i>p</i> < 0.001). In the whole study group, there were no significant differences in the prevalence of MA between different aetiologies of CKD (glomerulonephritis 24%, hypertension 23%, diabetes 25%, and tubule-interstitial diseases 24%). Also, when only patients in stages CKD 3–5 were compared, no significant differences in the prevalence of acidosis were found (glomerulonephritis 28%, hypertension 22%, diabetes 24%, and tubule-interstitial 21%). <b><i>Conclusions:</i></b> (1) MA is more frequent in patients with more advanced stages of CKD. (2) RRT reduces the prevalence of MA. (3) In PD patients, MA is rare. (4) Aetiology of CKD seems not to have a significant impact on MA prevalence.
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Barunčić Pletikosić, Julija, and Željka Križe. "Educational Activities of the Croatian Memorial Documentation Centre of the Homeland War." Moderna arhivistika 2022 (5), no. 2 (October 2022): 315–25. http://dx.doi.org/10.54356/ma/2022/qual7323.
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Croatian Memorial Documentation Centre of the Homeland War is a specialized archives and a scientific institution with the mission to collect, arrange, safekeep, professionally and scientifically research and publish archival records from the Homeland War. Apart from these main tasks, the Centre also engages in educational activities by organizing and providing lectures for elementary school, high school, university students and history teachers or by the engagement of its employees at the universities. Speakers will present these activities by giving examples of various types of lectures and describing methodology and contents. The authors present the theory of archival pedagogy and its development in Croatia, as well as examples of good practice in the Croatian archives. In Croatia, in the last couple of years, special attention has been given to archival pedagogy as a potential for the development of archival activities and the modernization of the archives. The Croatian Archival Society has an important role in promoting archival pedagogy and it encourages archivists to participate in educational activities. The authors will present educational activities organized by the Croatian Memorial Documentation Centre of the Homeland War. The Centre aims to follow modern trends in archive pedagogy and education by combining its two main activities - archival practice and scientific research. Special emphasis is given to the use of various categories of the Centre’s archival materials, such as official records, printed material, audio recordings, photographic material, maps, etc. in the lectures. Besides paper records, the Centre has a large collection of digitalized documents which are particularly useful and convenient to use in the lectures. The materials from the Collection of photographs and the Collection of video materials are most frequently used. Dealing with the original archival material, especially when it comes to photographs or video materials, students get the most precise frame of the past on the basis of which they then best develop their own critical thinking. In this way, archival practice illustrates the educational role of archives. Authors also deal with the question how and to what extent does the use of archival materials affect the students' understanding of the topic and inspires them to visit archives and to do their own research which also contributes to the popularization of archives and archival science.
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Finch, A. A., K. M. Goodenough, H. M. Salmon, and T. Andersen. "The petrology and petrogenesis of the North Motzfeldt Centre, Gardar Province, South Greenland." Mineralogical Magazine 65, no. 6 (December 2001): 759–74. http://dx.doi.org/10.1180/0026461016560007.
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AbstractNorth Motzfeldt is an intrusive igneous centre within the Igaliku (formerly spelt Igaliko) complex, Gardar Province, South Greenland. A detailed field description of the centre is given, with preliminary geochemical and isotopic data. The North Motzfeldt centre is intruded into Ketilidian granitoid basement rocks, and current exposure retains parts of the original roof against earlier Gardar eruptives and clastic sediments of the Eriksfjord formation. The unconformity between the Ketilidian and the overlying Eriksfjord is believed to have been crucial in the siting of the centre. The centre is subdivided into two major units, NM1 and NM2. This was followed by significant peralkaline nepheline microsyenite in sheets, characterized by rare element-rich accessory minerals including rinkite-mł sandrite, pyrochlore and låvenite. A significant microsyenite body is called NM3. A preliminary Rb-Sr isochron of 1226±27 Ma indicates a far younger age for the centre than previously thought (~;1350 Ma). Cross-cutting relationships between North Motzfeldt and rocks of the adjacent Motzfeldt centre require a reappraisal of the chronology of Motzfeldt magmatism. We suggest that rocks previously believed to comprise the Motzfeldt centre represent the products of multiple phases of magmatism from Early- to Mid-Gardar times.
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Spray, John G., and Gregory R. Dunning. "A U/Pb age for the Shetland Islands oceanic fragment, Scottish Caledonides: evidence from anatectic plagiogranites in ‘layer 3’ shear zones." Geological Magazine 128, no. 6 (November 1991): 667–71. http://dx.doi.org/10.1017/s0016756800019762.
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AbstractHigh precision U/Pb data obtained from zircons extracted from plagiogranite within the gabbro unit of the Shetland Islands oceanic fragment of northeast Scotland yield an age of 492 ± 3 Ma. Field relations indicate that the plagiogranites were generated by the partial melting of amphibolitized gabbros within high-temperature shear zones formed due to crustal deformation and fluid infiltration occurring in proximity to a spreading centre. The U/Pb data therefore constrain the crystallization age of the Shetland complex. This age is similar to U/Pb ages obtained from the Leka (497±2 Ma), Karmoy (493+7-4 Ma) and Gulfjellet (489±3 Ma) oceanic fragments of the Norwegian Caledonides, and the Pipestone Pond (4943-2 Ma) and Betts Cove (4893-2 Ma) oceanic fragments of the Canadian Appalachians.
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Sigl, Martin, Tanja Noe, Gerhard Ruemenapf, Bernhard K. Kraemer, Stephan Morbach, Martin Borggrefe, and Klaus Amendt. "Outcomes of severe limb ischemia with tissue loss and impact of revascularization in haemodialysis patients with wound, ischemia, and foot infection (WIfI) stage 3 or 4." Vasa 49, no. 1 (January 1, 2020): 63–71. http://dx.doi.org/10.1024/0301-1526/a000819.
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Summary. Background: With growing prevalence, end-stage renal disease (ESRD) as well as critical limb ischemia (CLI) are both conditions associated with high morbidity and mortality rates. Patients and methods: A retrospective single-centre study provided data of a German interdisciplinary vascular centre. Seventy-seven consecutive haemodialysis (HD) inpatients (median age, 73.6 years) with 91 threatened limbs with Wound, Ischemia, and foot Infection (WIfI) clinical stage 3 or 4 were evaluated for in-hospital treatment of peripheral arterial disease, limb salvage rates, major amputation (MA)-free and overall survival. Results: The 1-year MA-free limb salvage rate was 82 %. On multivariate analysis, a higher WIfI clinical stage (hazard ratio [HR], 7.54; p = 0.008) indicated a higher risk of MA, while at least one-vessel run-off to the foot after revascularization of any kind was associated with a lower risk of MA (HR, 0.17; p = 0.001). In the composite endpoint analysis, the 1-year MA-free overall survival rate was 65 %. Patients with limbs in WIfI clinical stage 4 versus stage 3 carried a more than two-fold increased hazard of death or MA (HR, 2.63; p = 0.028), while revascularization was associated with reduced risk (HR, 0.40; p = 0.021). One-year overall survival (78 %) was not associated with WIfI stage or revascularization but was worse in patients with previous symptomatic coronary artery disease (HR, 3.25; p = 0.039). During long-term follow-up over 12 years, MA-free survival probability was significantly lower in the WIfI stage 4 versus WIfI stage 3 group (HR, 1.58; p = 0.048) without significant differences in overall survival (HR, 1.10; p = 0.696). Conclusions: Lower-extremity CLI with tissue loss in HD patients is associated with high morbidity and mortality rates. WIfI clinical stage was predictive of 1-year MA-free survival, while revascularization significantly reduced MA risk but did not influence overall survival.
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Wang, Si-Bo, Kang-Ding Liu, Yi Yang, Ya-Jie Li, Ming-Yi Hu, Pan Lin, Rong Guo, et al. "Prevalence and extent of right-to-left shunt on contrast-enhanced transcranial Doppler in Chinese patients with migraine in a multicentre case-control study." Cephalalgia 38, no. 4 (May 5, 2017): 690–96. http://dx.doi.org/10.1177/0333102417708203.
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Background The association between RLS and migraine is still debated. The aim of this study is to investigate the prevalence and grade of RLS in Chinese patients with migraine and to evaluate the relationship between RLS and migraine. Methods A multi-center case-control study of contrast-enhanced transcranial Doppler was conducted in 931 consecutive patients with migraine (240 of 931 had migraine with aura and 691 of 931 were in the migraine without aura group) and 282 were healthy adults. Clinical trial no. NCT02425696. Results The prevalence of RLS was 63.8% and 39.9% in the migraine with aura group (MA+) and migraine without aura group (MA−), respectively, significantly higher than that of the healthy group (29.4%, p < 0.001; p < 0.001). The positive rate of large RLS in the MA+ group and MA− group was 32.1% and 16.5%, respectively, significantly higher than healthy group (6.4%, p < 0.001; p < 0.001). There was no difference among groups in terms of positive rate of permanent RLS ( p = 0.704). Conclusion This multi-centre case-control study suggested that there is an association between RLS and migraine with and without aura, especially when the shunt is large.
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Amrin Mustofa and Eko Ngabdul Shodikin. "Peran Pengabdian dalam Kesuksesan Program Tahfizd di Pondok Pesantren MA Islamic Centre Binbaz." At Turots: Jurnal Pendidikan Islam 4, no. 1 (June 23, 2022): 90–97. http://dx.doi.org/10.51468/jpi.v4i1.88.
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Penelitian ini bertujuan untuk menambah khazanah tentang sistem pemanfaatan pengabdian dalam pembelajaran tahfizdul quran pada sebuah lembaga pendidikan. Selain itu penelitian ini juga bertujuan sebagai bahan evaluasi program kegiatan, untuk mengukur sebesar apa peran pengabdian untuk kesuksesan program unggulan tahfizdul quran. Penelitian ini menggunakan metode kuantitatif deskriptif yaitu penulis memaparkan berdasarkan fakta di lapangan pada pondok pesantren Islamic Centre BINBAZ. Kesimpulan penelitian ini bahwa peranan pengabdian sangatlah besar baik dalam membantu pembelajaran, pembentukan karakter serta, pematangan hafalan pengabdian itu sendiri sehingga menjadi perhatian pengurus pondok akan terwujudnya monitoring yang maksimal untuk mewujudkan suksesnya program tahfizd di Pon Pes Islamic Centre Binbaz.
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Hurst, Nicola, Charles G. Mullighan, Sue L. Heatley, Kathryn Robinson, Silke Danner, Uwe Hahn, Jeff Szer, et al. "Risk Factors for Blood Product Usage Following Sibling Allogeneic Haemopoietic Stem Cell Transplantation (allo-HCT)." Blood 110, no. 11 (November 16, 2007): 2909. http://dx.doi.org/10.1182/blood.v110.11.2909.2909.
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Abstract Red cell and platelet transfusion requirements have been reported to be lower following reduced intensity conditioning allogeneic hematopoietic stem cell transplantation (RIC allo-HCT) when compared to myeloablative (MA) allo-HCT. However, previous studies examined RIC regimens with lower haemopoietic toxicity than many of the regimens in use today. We investigated risk factors for red cell and platelet transfusion in patients enrolled prospectively in an Australian study investigating the non-HLA immunogenetics of sibling allo-HCT. The transfusion requirements in the first year post transplant were reviewed for 122 patients transplanted between 2002 and 2006 in three Australian transplant centres. Seventy-one patients received MA and 51 RIC regimens. Using regression analysis, the outcome variables of total red cell and platelet units transfused were analysed. The factors age, transplant centre, disease, transplant type (RIC v MA), days of neutropenia, death within 12 months, disease risk (high risk (HR) v standard risk (SR)) and ABO mismatch underwent univariate analysis. Associated variables with p<0.2 were included in a multivariable analysis. Duration of neutropenia, disease risk, death within 12 months and transplant centre were significantly associated with higher red cell and platelet usage (p<0.0001). Transplant type was not associated with transfusion requirement. Each additional day of neutropenia resulted in a 9% increase in number of red cell units transfused and 11% of platelet units. HR MA patients used an estimated 17 units of red cells compared to 12 units for SR. HR RIC patients used an estimated 26 units compared to 10 for SR RIC patients. HR patients used an estimated 16.9 platelet units compared to 8.5 for low risk. These data highlight the importance of disease risk and degree of myelosuppression as key risk factors for blood product usage following allo-HSCT.
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Zanderighi, Luca. "Loyalty (community) Card come strumento di rivitalizzazione del commercio urbano." MERCATI & COMPETITIVITÀ, no. 4 (December 2011): 45–62. http://dx.doi.org/10.3280/mc2011-004005.
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Negli ultimi anni in Italia il commercio al dettaglio si sta caratterizzando per una crescente concorrenza a livello di sistema di offerta che riguarda non solo la competizione tra i diversi poli di offerta extraurbana (centri commerciali, mall, Factory Outlet Centre) e il commercio del centro storico, ma anche quella tra differenti sistemi di offerta urbani. Dopo avere analizzato brevemente i fattori che spiegano le crescenti difficoltÀ competitive del commercio urbano rispetto ai poli di offerta pianificata extraurbana, l'articolo analizza l'importanza di una carta fedeltÀ di area come strumento di promozione e di coesione del commercio urbano. In particolare, si approfondisce l'analisi di un caso specifico - quello della carta fedeltÀ di Savigliano - anche attraverso l'esame dei principali risultati di alcune recenti analisi quantitative e qualitative che sottolineano il ruolo economico e sociale di tale strumento.
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Turek, A., R. Keller, W. R. Van Schmus, and W. Weber. "U–Pb zircon ages for the Rice Lake area, southeastern Manitoba." Canadian Journal of Earth Sciences 26, no. 1 (January 1, 1989): 23–30. http://dx.doi.org/10.1139/e89-003.
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The Archean Rice Lake greenstone belt in southeastern Manitoba is made up of mafic to felsic volcanic rocks and associated intrusive and metasedimentary rocks. The belt is flanked to the north by the Wanipigow River granitic complex and to the south by the Manigotagan gneissic belt. The Ross River quartz diorite pluton is intrusive into the centre of the greenstone belt. U–Pb zircon ages indicate a major volcanic and plutonic event in the area at 2730 Ma. Ages for two volcanic units of the Rice Lake Group are 2731 ± 3 and 2729 ± 3 Ma. The Ross River pluton yields an age of 2728 ± 8 Ma and the Gunnar porphyry gives an age of 2731 ± 13 Ma; both intrude rocks of the Rice Lake Group. Granitic rocks of the Wanipigow River granitic complex give ages of 2731 ± 10 and 2880 ± 9 Ma, while a post-tectonic granite in the Manigotagan gneissic belt has an age of 2663 ± 7 Ma.
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Buchan, Kenneth L., James K. Mortensen, Kenneth D. Card, and John A. Percival. "Paleomagnetism and U-Pb geochronology of diabase dyke swarms of Minto block, Superior Province, Quebec, Canada." Canadian Journal of Earth Sciences 35, no. 9 (September 1, 1998): 1054–69. http://dx.doi.org/10.1139/e98-054.
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In the first collaborative study of paleomagnetism and precise U-Pb geochronology in the Minto block of the Superior Province, mafic dyke swarms with three widely divergent paleomagnetic signatures and isotopic ages have been identified. The 2505 ± 2 Ma Ptarmigan dykes trend north to northeast and have a virtual geomagnetic pole at 42°S, 220°E, similar to that of 2473-2446 Ma Matachewan dykes of the southern Superior Province. The ca. 2230 Ma Maguire dykes trend west to northwest and yield a paleopole at 9°S, 267°E, similar to those for 2216+8-4 Ma Senneterre dykes and 2217-2210 Ma Nipissing sills of the southern Superior and Southern provinces, respectively. The 2209 ± 1 Ma Klotz dykes trend west-northwest, but do not carry a consistent magnetization direction. Finally, 1998 ± 2 Ma Minto dykes of west-northwest to northwest trend, identical in age to the 1998 Ma ± 2 Ma Purtuniq ophiolite of the Cape Smith Belt, have a paleopole at 38°N, 174°E. The similarity of paleopoles for the ca. 2.23-2.21 Ga Maguire dykes of the Minto block, Senneterre dykes of the southern Superior, and Nipissing sills of the Southern Province demonstrates that these regions were in their present relative latitudes and orientations at that time. Likewise, the similarity of the Ptarmigan virtual geomagnetic pole and the Matachewan paleopole suggests little relative latitudinal movement or rotation of the two regions since ca. 2.5 Ga. The Maguire, Senneterre, and Klotz dykes form a roughly radiating pattern and may represent one quadrant of a giant radiating dyke swarm centred southeast of Ungava Bay, whose focus marks the location of a mantle plume responsible for ca. 2.22 Ga breakup along the eastern margin of the Superior Province. If so, the coeval Nipissing sills that intrude sedimentary rocks of the Huronian Supergroup of the Southern Province may have been fed laterally by Senneterre dykes from the Ungava plume centre.
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Kominek, Andrzej. "Co wspólnego ma metafora z kłamstwem, żartem i udawaniem?" LingVaria 13, no. 26 (November 16, 2018): 25–38. http://dx.doi.org/10.12797/lv.13.2018.26.02.
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What Does a Metaphor Have in Common with a Lie, Joke and Pretence?Linguistic communication consists of speech acts. In this article, I try to show the features which connect different speech acts, such as a lie, a joke, or pretending, with statements of metaphorical nature. I call them acts of communication and social competence. I understand them as ‘acts which have a meaning, are cognitive representations of what others want to communicate, and support social communication’. In the centre of this category is the metaphor which, in light of the cognitive approach, unites our intellect and imagination, and thus is not just a phenomenon of language, but primarily a phenomenon of our thinking and cognition.
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Mureşan, Dan Ioan. "Aux prises avec le centre du Monde. Autour du “double paradoxe des Lieux saints chrétiens” de Jérusalem." Chronos 18 (April 15, 2019): 29–54. http://dx.doi.org/10.31377/chr.v18i0.463.
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« Si je t'oublie Jérusalem que ma main droite m'oublie ! Que ma langue s'attache à mon palais si je perds ton souvenir, si je n'élève Jérusalem au sommet de ma joie » (Psaume 136). Voici révélés tous les éléments impliqués dans la sacralisation de l'espace : geste, parole et dévotion attachés à un lieu en rupture par rapport à l'espace profane qui l'entoure. Le lien essentiel reste toutefois le refus de l'oubli et la conservation de la mémoire du sacré à travers le temps. C'est pourquoi, pour rendre compte de la complexité des réalités des Lieux saints à Jérusalem, il faut développer une « phénoménologie de l'espace sacré ». S'appuyant sur les analyses de Mircea Eliade portant sur la géographie sacrée », on peut observer que l'espace à Jérusalem n'est pas homogène, mais fracturé par l'expérience de diverses hiérophanies, qui l'arrachent au profane et le transforment en réceptacle d'une force extérieure qui le sature d'être. L'espace sacré devient ainsi imbibé de sens, ce qui le différencie de l'espace profane, neutre par définition. La situation est plus complexe quand il s'agit d'un temple, qui représente de plus un Axis Mundi, lieu de rencontre privilégié entre le Ciel et la Terre.
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Ma, Juncai, Linhuan Wu, and İpek Kurtböke. "Skerman and beyond: 2019 status of the Global Catalogue of Microorganisms." Microbiology Australia 40, no. 3 (2019): 121. http://dx.doi.org/10.1071/ma19033.
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The World Federation for Culture Collections (WFCC)-MIRCEN World Data Centre for Microorganisms (WDCM) was set up as a data centre of WFCC and UNESCO World Network of Microbiological Resources Centres (MIRCEN). The WDCM is a vehicle for networking microbial resource centres of various types of microorganisms. It also serves as an information resource for the customers of the microbial resource centres (http://www.wdcm.org/). The WDCM was established in 1966 by the late Professor V.B.D. Skerman in Australia, later moved to Japan in 1986 and since 2010 is based in China under the Directorship of Dr Juncai Ma. Current databases at the WDCM are the Culture Collections Information Worldwide (CCINFO), Global Catalogue of Microorganisms (GCM) and the WDCM Reference Strain Catalogue. In addition, Analyzer of Bio-resource citations (ABC) and Statistics on Patented Microorganisms are available (http://www.wdcm.org/databases.html). In this article the status of the GCM and its associated 10K type strain sequencing project that currently provides services to taxonomists for standard genome sequencing and annotation will be communicated.
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Kufel, Mariusz. "Osadnictwo ma wyspie Thira (Santoryn) od neolitu po późną epokę brązu." Folia Praehistorica Posnaniensia 16 (November 1, 2018): 155–99. http://dx.doi.org/10.14746/fpp.2011.16.06.
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This article presents a history of the Thera Island occupation in the Neolithic and Bronze Age. Altogether, 13 settlements and 2 cemeteries have been recorded from this period. The island was inhabited until the Late Bronze Age. The most significant centre on the island was surely the town of Akrotiri. At the beginning of the Late Bronze Age, a large eruption of the Santorini volcano took place which ceased the occupation and covered the almost entire island with a thick layer of pumice.
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Barrett, J., B. Ahitan, E. F. Nash, J. Whitehouse, and D. Honeybourne. "The experience of using megestrol acetate (MA) in a large UK adult CF centre." Journal of Cystic Fibrosis 8 (June 2009): S86. http://dx.doi.org/10.1016/s1569-1993(09)60336-2.
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Požgan, Jasna, and Ivana Posedi. "Possibilities for the Digitization of Craftsmen Associations Fonds in Međimurje and Koprivnička Podravina." Moderna arhivistika 2020, no. 1 (September 1, 2020): 48–57. http://dx.doi.org/10.54356/ma/2020/1/luzj9274.
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The authors discuss the issue of digitization of craft associations’ fonds kept by the State Archives for Međimurje and the State Archives in Varaždin, in the Archival Collection Centre Koprivnica. The paper includes an analysis of possible models of digitization of the aforementioned archival records, i.e. its individual series, which would be interesting to researchers.
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Clemens, J. D., P. M. Marara, G. Stevens, and J. Taylor. "Magmatic clasts in the Saldanha ignimbrites, and Trekoskraal beach pebbles: missing pieces from the volcanic puzzle in the Cape Granite Suite." South African Journal of Geology 123, no. 1 (March 1, 2020): 75–94. http://dx.doi.org/10.25131/sajg.123.0004.
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Abstract Previous studies have shown that the 542 Ma Saldanha eruption centre, situated on the west coast of South Africa, consists of the basal Saldanha Ignimbrite, which is partly intermingled with and partly overlain by the Jacobs Bay Ignimbrite, both having S-type characteristics. Together, the Saldanha eruption centre and the Postberg eruption centre (to the south, across Saldanha Bay) form part of the volcanic phase of the Cape Granite Suite. The lowermost parts of the Jacob’s Bay Ignimbrite contain magma clasts that are chemically dissimilar to their host ignimbrites. Some clasts are recrystallized ignimbrites that are chemically distinct from any unit that has outcrop expression, and are inferred to form part of a previously unrecognised volcanic event. Other clasts are non-fragmental, hypabyssal rocks that were evidently intruded prior to the explosive intracaldera eruptions that formed the Saldanha ignimbrites. Beach cobbles and pebbles, sampled from the Trekoskraal coastal area, include three texturally and chemically distinct groups – rhyolitic ignimbrites, rhyolitic hypabyssal rocks and dacitic hypabyssal rocks or lavas. Only a minority of these rocks (from the rhyolitic ignimbrite group) show some chemical affinities with the Saldanha Bay ignimbrites. The other pebble types show neither chemical nor textural similarities with the rocks of either the Saldanha or the Postberg eruption centres. The pebbles and cobbles also have no chemical affinities with any of the granitic intrusive rocks of the region. Their chemical and isotopic characteristics suggest that a variety of different magma batches were formed through partial melting of heterogeneous Malmesbury Group metamorphic rocks, at depth. LA-ICP-MS dating of igneous zircon crystals from two of the pebbles (a low-silica rhyolite ignimbrite and a dacite) yielded magmatic ages of 540 ± 4 Ma and 533 ± 4 Ma, respectively. Taking uncertainty brackets into account, these new dates suggest that there may have been a 3 Myr hiatus in eruptive activity, between the eruptions responsible for the exposed Saldanha ignimbrites and the eruptions that produced the volcanic units from which the pebbles were derived. This confirms the inference that there was a previously unidentified, later, volcanic event associated with the Cape Granite Suite in the Saldanha area.
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Lamyai, Warot, Kitkawee Pono, Danai Indrakamhaeng, Apichat Saengsin, Nartya Songhong, Panu Khuwuthyakorn, Pongruk Sribanditmongkol, Anongphan Junkuy, and Manit Srisurapanont. "Risks of psychosis in methamphetamine users: cross-sectional study in Thailand." BMJ Open 9, no. 10 (October 2019): e032711. http://dx.doi.org/10.1136/bmjopen-2019-032711.
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ObjectiveTo determine factors related to recent methamphetamine-associated psychosis (MAP) among individuals recently using methamphetamine (MA).DesignCross-sectional study carried out between July 2015 and June 2017.SettingFour mental health hospitals and one substance abuse treatment centre in Thailand.ParticipantsIndividuals recruited onto the study included those aged 18 years or over, of both sexes, who reported MA use in the month prior to admission.MeasuresAny recent psychosis was confirmed using the Mini International Neuropsychiatric Interview-Plus psychotic module. The Timeline Follow Back was used to determine days of MA use. The severity of MA dependence was assessed using the Severity of Dependence Scale. Quantitative hair analysis was carried out to confirm recent use of MA and to measure the amount of MA use. We compared several characteristics between those who had recently experienced psychosis and those who had not.ResultsThis study included 120 participants without MAP and 113 participants with MAP. The mean age was 28 years and the mean abstinence was 17 days. The levels of MA concentration in hair were not significantly different between groups (p=0.115). Based on the final logistic regression model, the independent factors associated with MAP (OR and 95% CI) included being male (OR 4.03, 95% CI 1.59 to 10.20), ≥16 days of MA use in the past month (OR 2.35, 95% CI 1.22 to 4.52), MA dependence (OR 9.41, 95% CI 2.01 to 44.00) and hospitalisation history related to substance abuse (OR 3.85, 95% CI 2.03 to 7.28).ConclusionsHealth professionals should closely monitor the development of MAP in MA-dependent men who frequently use MA and have a history of hospitalisation for substance abuse. The measure of MA concentration levels in the hair may add no benefit for the prediction of the development of MAP.
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Triantaphyllou, M. V., A. Antonarakou, H. Drinia, M. D. Dimiza, G. Kontakiotis, E. Tsolakis, and G. Theodorou. "HIGH RESOLUTION BIOSTRATIGRAPHY AND PALEOECOLOGY OF THE EARLY PLIOCENE SUCCESSION OF PISSOURI BASIN (CYPRUS ISLAND)." Bulletin of the Geological Society of Greece 43, no. 2 (January 23, 2017): 763. http://dx.doi.org/10.12681/bgsg.11242.
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The Pissouri basin (Cyprus Island) corresponds to a small tectonically controlled depression elongated NNW-SSE and widening southward in the direction of the deep Mediterranean domain. In the centre of the basin, the section Pissouri South, about 100 m thick, consists of well-preserved cyclic marine sediments including laminated brownish layers alternating with grey homogeneous marls. Plankton biostratigraphy (calcareous nannofossil and planktonic foraminifera) revealed a remarkable number of biovents bracketing the Zanclean-Piacenzian boundary. In particular the Highest Occurrence (HO) of Reticulofenestra pseudoumbilicus suggests the presence of NN14/15-NN16 nannofossil biozone boundary, dated at 3.84 Ma. Additionally the defined planktonic foraminiferal MPL3-MPL4a and MPL4a-MPL4b zone boundaries point to ages between 3.81 and 3.57 Ma, in Pissouri North section. Zanclean/Piacenzian boundary (3.6 Ma) is placed at 75.8 m from the base of the section, considering Discoaster pentaradiatus top paracme (3.61 Ma) and Globorotalia crassaformis first influx (3.6 Ma) bioevents. The cyclically developed sapropelic layers around the Zanclean – Piacenzian boundary suggest a climate characterized by a period of warm temperate conditions and a highly stratified water column that occurred at times of precession minima.
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Liang, Qiongdan, Tifei Yuan, Xinyu Cao, Hao He, Jiemin Yang, and Jiajin Yuan. "Assessing the severity of methamphetamine use disorder beyond the subjective craving report: the role of an attention bias test." General Psychiatry 32, no. 2 (April 2019): e100019. http://dx.doi.org/10.1136/gpsych-2018-100019.
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BackgroundMethamphetamine (MA) is one of the most commonly abused illicit psychostimulant drugs and MA use disorder constitutes a universal health concern across the world. Despite many intervention approaches to MA use disorder, the indicator of addiction severity is mainly limited to subjective craving score to drug-related cues, which is influenced by many factors such as social approval and self-masking.AimThe present study investigates whether self-reported craving for drug use in response to MA cues is a reliable indicator for addiction severity in MA users, and then tests the validity of the cue-induced attention bias test in addiction severity assessment.MethodsFifty-two male MA users completed the cue-induced craving test and attention bias task, and were required to report clinical characteristics of addiction severity. For the attention bias test, subjects were required to discriminate the letter superimposed onto MA use-related or neutral scenes. The reaction time delay during MA-use condition relative to neutral condition was used as an index of the attention bias.ResultsThe results showed that 24 of the 52 MA users rated non-zero in cue-induced craving test, and they showed a significant attention bias to drug-related pictures. However, the other 28 users who rated zero in cue-induced craving evaluation showed a similar attention bias to drug-related cues. In addition, the attention bias to MA use-related cues was significantly and positively correlated with the clinical indexes of addiction severity, but the relationship was absent between subjective craving evaluation and the indexes of addiction severity.ConclusionThese results suggest that attention bias to MA cues may be a more reliable indicator than experiential craving report, especially when subjective craving is measured in the compulsory rehabilitation centre.
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Turek, A., R. P. Sage, and W. R. Van Schmus. "Advances in the U–Pb zircon geochronology of the Michipicoten greenstone belt, Superior Province, Ontario." Canadian Journal of Earth Sciences 29, no. 6 (June 1, 1992): 1154–65. http://dx.doi.org/10.1139/e92-093.
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The Michipicoten greenstone belt in the Superior Province in Ontario developed over a period of approximately 240 Ma, between 2900 and 2660 Ma. The belt is made up of supracrustal rocks consisting of mafic to felsic metavolcanic and associated metasedimentary rocks intruded and embayed by granitoids of various ages. Generally, the external granitic terrane, a mosaic of plutons of various ages, is younger than the greenstone belt and equivalent in age to the plutons in the belt. Three major volcanic cycles have been recognized, and the older internal plutonism is coeval with the volcanism.This study reports 10 new U–Pb concordia ages that enhance the existing geochronological framework of the area. The 2889 Ma age determined for the Judith volcanic tuff documents the existence of the oldest volcanic cycle. This age is close to that of the Murray–Algoma porphyry, dated in this study at 2881 Ma, and similar to a previously published age of 2888 Ma for the Regnery granite within the same area. These three ages establish coeval felsic volcanism and plutonism within the oldest volcanic cycle 1.The new ages for the Jubilee volcanic centre are 2746 Ma (volcanic flow) and 2742 Ma (porphyry intrusion). These ages agree with previously published cycle 2 felsic volcanic ages of 2744 and 2749 Ma and hence establish coeval felsic volcanism and plutonism for this volcanic cycle. The Goudreau felsic volcanic terrane yields ages of 2729 Ma at Goudreau and 2741 Ma at Alden, which probably represent different stratigraphic positions within the same cycle.At McCormick Lake the felsic volcanic crystal tuff is 2701 Ma and belongs to cycle 3 volcanism. U–Pb ages have been determined for three plutons: 2677 Ma for the internal Dickenson Lake syenite, 2662 Ma for the internal Lund Lake granodiorite, and 2686 Ma for the external Dubreuilville granodiorite. These ages fit into an established period of granitoid plutonism in the area.
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Ushioda, Ema, Richard Smith, Steve Mann, and Peter Brown. "Promoting teacher–learner autonomy through and beyond initial language teacher education." Language Teaching 44, no. 1 (December 3, 2010): 118–21. http://dx.doi.org/10.1017/s026144481000039x.
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With the growing international market for pre-experience MA in ELT/TESOL programmes, a key curriculum design issue is how to help students develop as learners of teaching through and beyond their formal academic studies. We report here on our attempts at the University of Warwick to address this issue, and consider wider implications for research and practice in initial language teacher education. At the Centre for Applied Linguistics at the University of Warwick, we run a suite of MA programmes for English language teaching professionals from around the world. Most of these courses are for students with prior teaching experience, but our MA in English Language Studies and Methods (ELSM) programme is designed for students with less than two years’ experience and, in fact, the majority enrol straight after completing their undergraduate studies in their home countries.
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Zhu, Chengnan, and Zoltan Hajnal. "Tectonic development of the northern Williston basin: a seismic interpretation of an east – West regional profile." Canadian Journal of Earth Sciences 30, no. 3 (March 1, 1993): 621–30. http://dx.doi.org/10.1139/e93-047.
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Based on seismic analysis in conjunction with well control, 10 time-stratigraphic sequences and sub-sequences are mapped in Phanerozoic strata of the northern Williston basin. Seven additional time-unit subdivisions are distinguished in the upper-most Cretaceous. These sequences, sub-sequences, and units, and their unconformities, reveal that the northern Williston basin experienced three developmental episodes: initial subsidence during the time of deposition of the Sauk sequence (540–505 Ma); stability during the time of deposition of the Tippecanoe to Upper Colorado sequences (480–84 Ma); and deformation since the time of deposition of the Montana sequence (post-66 Ma). The seismic unconformities indicate nine subsidence events separated by five major erosional periods. All the major erosional cycles are consequences of periodic and incongruent uplift and tilting of the western and eastern flanks of the basin relative to its centre.
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Fortin, Andrée, Marie-Hélène Villeneuve, and Martin Rioux. "Jamais sans ma voiture ? Les banlieusards des franges de Québec." Recherche 49, no. 3 (February 5, 2009): 447–73. http://dx.doi.org/10.7202/019876ar.
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Le rapport à l’automobile de 70 résidents de secteurs périphériques de l’agglomération de Québec, non desservis par le transport en commun, est analysé à travers leurs comportements de mobilité, ainsi que leurs discours sur l’environnement et l’automobile. Leurs déplacements quotidiens varient beaucoup et tous les actifs ne se déplacent pas quotidiennement vers le centre-ville. Des différences selon l’âge et le sexe caractérisent non tant les comportements en tant que tels, mais plutôt le rapport affectif ou fonctionnel entretenu envers la voiture. Si les femmes aiment conduire leur voiture dans la même proportion que les hommes, ce n’est pas pour les mêmes raisons. Diminuer le recours à la voiture individuelle, ce serait transformer en profondeur tout un mode de vie ; comprendre ce mode de vie et ce pour quoi plusieurs personnes l’apprécient est essentiel dans l’atteinte de cet objectif.
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Gower, Charles F., and Thomas E. Krogh. "A U–Pb geochronological review of the Proterozoic history of the eastern Grenville Province." Canadian Journal of Earth Sciences 39, no. 5 (May 1, 2002): 795–829. http://dx.doi.org/10.1139/e01-090.
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The geological evolution of the eastern Grenville Province can be subdivided into three stages. During the first stage, namely pre-Labradorian (> 1710 Ma) and Labradorian (17101600 Ma) events, a continental-marginal basin was created and subsequently destroyed during accretion of a magmatic arc formed over a south-dipping subduction zone. Subduction was short-lived and arrested, leading to a passive continental margin. The second stage addresses events between 1600 and 1230 Ma. The passive margin lasted until 1520 Ma, following which a continental-margin arc was constructed during Pinwarian (15201460 Ma) orogenesis. Elsonian (14601230 Ma) distal-inboard, mafic and anorthositic magmatism, decreasing in age northward, is explained by funnelled flat subduction, possibly associated with an overridden spreading centre. As the leading edge of the lower plate advanced, it was forced beneath the Paleoproterozoic Torngat orogen root between the Archean Superior and North Atlantic cratons, achieving its limit of penetration by 1290 Ma. Static north-northeast-trending rifting then ensued, with mafic magmatism flanked by felsic products to the north and south. Far-field orogenic effects heralded the third stage, lasting from 1230 to 955 Ma. Until 1180 Ma, the eastern Grenville Province was under the distal, mild influence of Elzevirian orogenesis. From 1180 to 1120 Ma, mafic and anorthositic magmatism occurred, attributed to back-arc tectonism inboard of a post-Elzevirian Laurentian margin. Quiescence then prevailed until Grenvillian (1080980 Ma) continentcontinent collision. Grenvillian orogenesis peaked in different places at different times as thrusting released stress, thereby precipitating its shift elsewhere (pressure-point orogenesis). High-grade metamorphism, thrusting and minor magmatism characterized the Exterior Thrust Zone, in contrast to voluminous magmatism in the Interior Magmatic Belt. Following final deformation, early posttectonic anorthositicalkalicmafic magmatism (985975 Ma) and late posttectonic monzoniticsyenitegranite magmatism (975955 Ma) brought the active geological evolution of this region to a close.
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Neall, Vincent E., and Steven A. Trewick. "The age and origin of the Pacific islands: a geological overview." Philosophical Transactions of the Royal Society B: Biological Sciences 363, no. 1508 (September 3, 2008): 3293–308. http://dx.doi.org/10.1098/rstb.2008.0119.
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The Pacific Ocean evolved from the Panthalassic Ocean that was first formed ca 750 Ma with the rifting apart of Rodinia. By 160 Ma, the first ocean floor ascribed to the current Pacific plate was produced to the west of a spreading centre in the central Pacific, ultimately growing to become the largest oceanic plate on the Earth. The current Nazca, Cocos and Juan de Fuca (Gorda) plates were initially one plate, produced to the east of the original spreading centre before becoming split into three. The islands of the Pacific have originated as: linear chains of volcanic islands on the above plates either by mantle plume or propagating fracture origin, atolls, uplifted coralline reefs, fragments of continental crust, obducted portions of adjoining lithospheric plates and islands resulting from subduction along convergent plate margins. Out of the 11 linear volcanic chains identified, each is briefly described and its history summarized. The geology of 10 exemplar archipelagos (Japan, Izu-Bonin, Palau, Solomons, Fiji, New Caledonia, New Zealand, Society, Galápagos and Hawaii) is then discussed in detail.
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Zhang, Congyao, Eugene Churazov, Klaus Dolag, William R. Forman, and Irina Zhuravleva. "Encounters of merger and accretion shocks in galaxy clusters and their effects on intracluster medium." Monthly Notices of the Royal Astronomical Society 494, no. 3 (April 17, 2020): 4539–47. http://dx.doi.org/10.1093/mnras/staa1013.
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ABSTRACT Several types/classes of shocks naturally arise during formation and evolution of galaxy clusters. One such class is represented by accretion shocks, associated with deceleration of infalling baryons. Such shocks, characterized by a very high Mach number, are present even in 1D models of cluster evolution. Another class is composed of ‘runaway merger shocks’, which appear when a merger shock, driven by a sufficiently massive infalling subcluster, propagates away from the main-cluster centre. We argue that, when the merger shock overtakes the accretion shock, a new long-living shock is formed that propagates to large distances from the main cluster (well beyond its virial radius), affecting the cold gas around the cluster. We refer to these structures as Merger-accelerated Accretion shocks (MA-shocks) in this paper. We show examples of such MA-shocks in one-dimensioanal (1D) and three-dimensional (3D) simulations and discuss their characteristic properties. In particular, (1) MA-shocks shape the boundary separating the hot intracluster medium (ICM) from the unshocked gas, giving this boundary a ‘flower-like’ morphology. In 3D, MA-shocks occupy space between the dense accreting filaments. (2) Evolution of MA-shocks highly depends on the Mach number of the runaway merger shock and the mass accretion rate parameter of the cluster. (3) MA-shocks may lead to the misalignment of the ICM boundary and the splashback radius.
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Zanchin, G., F. Dainese, M. Trucco, F. Mainardi, E. Mampreso, and F. Maggioni. "Osmophobia in Migraine and Tension-Type Headache and Its Clinical Features in Patients With Migraine." Cephalalgia 27, no. 9 (September 2007): 1061–68. http://dx.doi.org/10.1111/j.1468-2982.2007.01421.x.
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Intolerance to smell is often reported by migraine patients. This study evaluates osmophobia in connection with the diagnosis of migraine and episodic tension-type headache (ETTH). The characteristics of this symptom are also investigated. We recruited from our Headache Centre 1005 patients (772 female, 233 male; age 37 ± 11 years), of whom 677 were migraine without aura (MoA), 130 migraine with aura (MA) and 198 TTH. Patients with two or more forms of primary headache were excluded. Among migraine patients, 43.9% with MoA and 38.5% with MA reported osmophobia during the attacks; none of the 198 TTH patients suffered this symptom. Most frequently offending odours were scents (63.9%), food (55.2%) and cigarette smoke (54.8%). Osmophobia appears structurally integrated into the migraine history of the patient. It seems to be a peculiar symptom favouring the diagnosis of migraine (MoA and MA) in the differential diagnosis with ETTH.
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Ezzat, Hatoon, J. Doug Filipenko, Linda M. Vickars, Paul F. Galbraith, Charles H. Li, Kevin Murphy, Julio Montaner, et al. "BCL-2 Expression May Adversely Affect Outcome in HIV-Associated Systemic Diffuse Large B Cell Lymphoma." Blood 106, no. 11 (November 16, 2005): 4674. http://dx.doi.org/10.1182/blood.v106.11.4674.4674.
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Abstract BCL-2 expression in diffuse large B cell lymphoma (DLBCL) in HIV-negative patients (pts) is associated with inferior outcome, an effect at least partially overcome by the addition of rituximab (R) to multi-agent chemotherapy (MA-CT). The effect of BCL-2 expression on DLBCL outcome in HIV-positive pts is less well defined. We performed a retrospective clinical-pathological correlation in 141 pts with systemic HIV-associated lymphoma seen at St. Paul’s Hospital between 1982 and 2004; this analysis includes 36 DLBCL since 1992. Clinical DLBCL data were obtained by chart review; HIV-associated data from the data-base of the BC Centre For Excellence in HIV/AIDS. Stored biopsy material diagnostic of DLBCL was sectioned and stained for BCL-2 expression. Median age at DLBCL diagnosis (dx) was 42 (range 20–64)y, DLBCL stage advanced 27; ECOG PS >1 n=11; median LDH ratio 1.4 (0.5–8.6); IPI >2 n=11; CD4 at DLBCL dx >100 n=21; prior AIDS dx n=18; hepatitis B and/or C n=9; on highly active anti-retroviral therapy (HAART) at DLBCL dx n=11; BCL-2+ n=11. HAART with DLBCL treatment (tx) n=17; received CHOP-R n=9, CHOP or ACOP n=18; G-CSF n=10; herpes virus tx n=10; PCP prophylaxis n=35. Significant factors for inferior overall survival (OS) included prior AIDS, median OS (MS) 3.2 vs. 7.4 mo with no AIDS; no HAART use, MS 2.6 vs. 5.2 mo with HAART; BCL-2+, MS 3.2 vs. 5.2 mo for BCL-2 negative; and receiving MA-CT without R, MS 3.8 vs. 7.6 mo for MA-CT + R (p<0.05 for all factors). Though a statistically significant effect could not be confirmed, the use of MA-CT + R appeared to improve progression-free survival (PFS) in BCL-2+ DLBCL, PFS 3 of 3 pts at 2.3 mo (2 on HAART) vs. 2 of 6 (33%, 2 on HAART) PFS at 2.1 mo for MA-CT without R. PFS for 6 pts receiving HAART and MA-CT + R (3 BCL-2+) was 100% at 2.3 mo, while for 12 pts receiving HAART and MA-CT without R (2 BCL-2+), median PFS was 2.0 (range 1–10.1) mo or 55% PFS at 2.1 mo. For pts not receiving HAART; MA-CT (n=4, 2 BCL-2+), 3 progressed at 0.5, 5.3 and 8.8 mo and died of DLBCL, and one died of treatment-related toxicity at 2.6 mo; MA-CT + R, 2 of 2 pts (neither BCL-2+) progressed at 3 and 11 mo. There were 15 documented episodes of treatment-related toxicity in 13 of 24 pts (54%) in the MA-CT group and 24 episodes in 7 of 9 pts (79%) in the MA-CT + R group (p<0.76). There were 13 (54%) toxic deaths with MA-CT vs. 2 (22%) with MA-CT + R (neither pt receiving HAART; p<0.07) as opposed to 2 (22%) and 13 (54%), respectively, deaths from DLBCL (p<0.02). Overall mortality was MA-CT n=19 (79%); MA-CT + R n=4 (44%), p<0.07. In conclusion, in this single-centre series of 36 pts with HIV-associated systemic DLBCL, of pts receiving no HAART, outcome was inferior in BCL-2+ DLBCL, an effect not seen with HAART. BCL-2+ DLBCL had inferior outcome in pts receiving MA-CT, an effect not seen with MA-CT + R. These data suggest that in BCL-2+ DLBCL in HIV, HAART and rituximab with chemotherapy are important in overcoming a BCL-2 effect.
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Clauer, N., J. R. O'neil, and s. Furlan. "Clay minerals as records of temperature conditions and duration of thermal anomalies in the Paris Basin, France." Clay Minerals 30, no. 1 (March 1995): 1–13. http://dx.doi.org/10.1180/claymin.1995.030.1.01.
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AbstractUpper Triassic sandy horizons in the Paris Basin were sampled at depths ranging from outcrop in the northeast to 2,700 m in the centre of the basin. The smallest clay sub-fractions (<0.2 μm) from the deepest central samples consist mainly of illite and chlorite whose K-Ar age is ∼ 190 Ma. These minerals formed at a relatively high temperature of 220-250°C, as determined from the oxygen isotope fractionation between authigenic illite and associated quartz overgrowths, but at a burial depth of only 500 m. In a nearby drillhole that crosscuts a fault zone reactivated during the 190 Ma event, illite is less well-crystallized and has a higher δ18O value suggesting different physical and chemical conditions of formation during the same hydrothermal episode. Two other generations of illite-smectite mixed-layer clays formed in the same Triassic horizon: one at ∼150 Ma and the other at ∼80 Ma. These younger clays have higher δ18O values and thus may have formed at somewhat lower temperatures. The δ18O values of the fluids from which the different illite-smectite mixed-layer minerals form range from +9 to +13.5 per mil (SMOW).An Ar diffusion code was used to estimate, on the basis of the Ar loss of the clay-type material, the duration of these events. The results suggest that the duration of the hydrothermal events at 190 Ma and 150 Ma were rather short, <1 Ma, whereas the youngest event was protracted over a much longer period of ∼37 Ma. Comparison between K-Ar ages of the different mixed-layer minerals and sedimentation rates of the sediments since the Palaeozoic shows significant accelerations of the rates at ∼ 190-200 Ma and 150 Ma, and a less important one at ∼80 Ma. These observations provide additional evidence that the first two events were promoted by basement-related tectono-thermal activities. The third event is considered to be of diagenetic origin.
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Le, Dinh-Vu, Trong-Tuan Nguyen, and Van-Trong Nguyen. "A Validated Method for the Simultaneous Determination of Methamphetamine and 3,4-Methylenedioxy-N-methamphetamine in Blood-Based Liquid Chromatography-Tandem Mass Spectrometry." International Journal of Analytical Chemistry 2020 (November 26, 2020): 1–7. http://dx.doi.org/10.1155/2020/8862679.
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A liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method has been validated for the simultaneous determination of methamphetamine (MA) and 3,4-methylenedioxy-N-methamphetamine (MDMA) in the blood sample. Under the optimal experimental conditions, the concentration of MA can be determined in the range from 1 µg/L to 5000 µg/L with the method detection limit (MDL) of 0.31 µg/L. The range from 0.5 to 500 µg/L is observed for the determination of MDMA with the MDL down to 0.25 µg/L. The practical applicability of the method is performed with the recovery ranging from 85.3% to 94% for MA and from 86.9% to 95.5% for MDMA. At the different concentrations of drugs, the relative standard deviations (RSD) for both MA and MDMA are lower than 5.7%. The method was applied to analyse 1995 blood samples that had been collected from the Forensic Medicine Centre of Ho Chi Minh City. The results showed 1.75% positive with MA and 0.25% positive with MDMA. These two drugs take 10% of the total drugs positive samples. By using deuterium-labelled methamphetamine-d5 and 3,4-methylenedioxy-N-methamphetamine-d5 as the internal standards in the determination and the use of MS/MS in multiple reaction monitoring mode signal readout, the method exhibits robustness specificity and can be applied in simultaneous determination of MA and MDMA in blood with high selectivity and sensitivity.
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Adams, C. J., D. Seward, and S. D. Weaver. "Geochronology of Cretaceous granites and metasedimentary basement on Edward VII Peninsula, Marie Byrd Land, West Antarctica." Antarctic Science 7, no. 3 (September 1995): 265–76. http://dx.doi.org/10.1017/s095410209500037x.
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Rb-Sr ages of Swanson Formation on Edward VII Peninsula, West Antarctica, indicate a late Ordovician age, 421–432 Ma for regional metamorphism. K-Ar ages of 113–440 Ma, reflect a second thermal metamorphism during emplacement of widespread Cretaceous granites. Rb-Sr ages of five monzogranite/syenogranitic plutons of Byrd Coast Granite are in the range 95–105 Ma (initial 87Sr/86Sr ratios 0.710–0.715) and represent stages of crystallization of anorogenic granite (A subtype). These correlate with Byrd Coast Granite (100–110 Ma) farther east in Marie Byrd Land, and with Cretaceous granitoids on the Campbell Plateau and in southern New Zealand. K-Ar mica/hornblende and fission-track apatite/zircon ages indicate that regional cooling began c. 90–100 M.y. ago immediately after granite emplacement. Uplift continued throughout the peninsula during the period 55–100 Ma (late Cretaceous-early Tertiary), associated with regional uplift in the rift-drift stages of Gondwana break-up at the South-west Pacific spreading centre. Apatite fission track ages show that during late Cretaceous-early Tertiary time the peninsula behaved as two blocks. The Alexandra Mountains were exhumed 20 m.y. before the Rockefeller Mountains and are possibly separated by a fault active initially in the mid-Cretaceous or earlier, and later reactivated in the late Cretaceous-early Tertiary. An averaged uplift rate (50–100 Ma) of 0.025 mm yr−1 is characteristic of the inferred intraplate tectonic setting.
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Saadah, Nurus. "School well-being of Madrasah Tsanawiyah (MTs) and Madrasah Aliyah (MA) in Yogyakarta." Jurnal Psikologi Islam dan Budaya 3, no. 1 (April 30, 2020): 23–36. http://dx.doi.org/10.15575/jpib.v3i1.5591.
Full textAbstract:
This study aims to identify the level of schools well-being in Madrasah Aliyah (MA) and Madrasah Tsanawiyah (MTs) throughout the Special Region of Yogyakarta (DIY). This phenomenology study involved 9 Guidance Counseling (BK) teachers of 6 MTs and 7 BK teachers of 4 MA in Yogyakarta. The respondents were collected using purposive sampling and involved in Focused Group Discussion (FGD). The results showed that several schools, both Madrasah Tsanawiyah (MTs) and Madrasah Aliyah (MA), have begun to recognize and implement various innovations towards school well-being. The innovations that have been carried out by some schools are as follows. In the term of loving, rolling classes were applied to reduce the students’ boredom, get them to socialize with friends, and reduce bullying. Also, to develop health, several schools collaborate with public health centre, health clinics, and the UGM Faculty of Medicine. Besides, appreciating students’ achievement, and activating parents and school forum were conducted to develop the sense of being.
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Vreeken, W. J., R. W. Klassen, and R. W. Barendregt. "Davis Creek silt, an Early Pleistocene or Late Pliocene deposit in the Cypress Hills of Saskatchewan." Canadian Journal of Earth Sciences 26, no. 1 (January 1, 1989): 192–98. http://dx.doi.org/10.1139/e89-015.
Full textAbstract:
Davis Creek silt is the informal name for a previously unreported loess and its reworked detritus encountered at several locations to the south of the east and centre blocks of the Cypress Hills. This unit intervenes between a pediment with an estimated age of 10 Ma and Late Wisconsinan glacial deposits. Because the unit has reversed magnetization, it is older than 788 ka, the astronomical age of the Matuyama–Brunhes magnetic polarity reversal. The unit also contains an undated volcanic ash from the Pearlette ash family that could represent the Mesa Falls (1.27 Ma) or the Huckleberry Ridge (2.02 Ma) ash bed. Davis Creek silt overlies an oxidized weathering zone and contains large secondary carbonate nodules near its truncated top that were, in places, reworked into a lag deposit or stone line before accumulation of the glacial overburden. At one location Davis Creek silt is separated from this overburden by a unit of cryoturbated gravelly loam with remnants of a reddish-yellow paleosolic B horizon.
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Cologno, D., P. Torelli, and GC Manzoni. "A Prospective Study of the Headache Phase in 32 Migraine with Aura Patients." Cephalalgia 22, no. 6 (July 2002): 411–15. http://dx.doi.org/10.1046/j.1468-2982.2002.00388.x.
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For an accurate description of the clinical features of the headache phase in migraine with aura (MA) attacks, we thought it useful to conduct a prospective study of consecutively referred MA patients seeking treatment at the Headache Centre of the University of Parma Institute of Neurology. The case series included 32 patients (22 women and 10 men). At the time of the first visit, each patient was given a questionnaire to be filled in at the next MA attack. Six patients (four women and two men) had attacks of migraine aura without headache. Among the remaining 26 patients (18 women and eight men), the duration of the headache phase was < 24 h in 23 (88.5%); pain location was bilateral in 14 (53.8%) and unilateral in 12, but occurring on the opposite side to aura only in one patient; pain intensity was mild or moderate in 13 (50.0%). The headache phase of MA appeared to have clinical features that differed widely from patient to patient and was consistent with the International Headache Society diagnostic criteria for migraine without aura in 26.9% of patients and for tension-type headache (TTH) in 23.1%.
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Okwokwo, Oke I., Neil C. Mitchell, Wen Shi, I. C. F. Stewart, and A. Y. Izzeldin. "How have thick evaporites affected early seafloor spreading magnetic anomalies in the Central Red Sea?" Geophysical Journal International 229, no. 3 (January 21, 2022): 1550–66. http://dx.doi.org/10.1093/gji/ggac012.
Full textAbstract:
SUMMARY The axial region of the Central Red Sea has been shown to be floored by oceanic crust, but this leaves the low amplitudes of off-axis magnetic anomalies to be explained. Furthermore, if seafloor spreading occurred in the late Miocene, it is unclear how that occurred as widespread evaporites were being deposited then and may have covered the spreading centre. In this study, we derive crustal magnetization for a constant-thickness source layer within the uppermost basement by inverting aeromagnetic anomalies using basement depths derived from seismic reflection and gravity data. Peak-to-trough variations in magnetization away from the axis are found to be slightly less than half of those of normal oceanic crust, but not greatly diminished, and hence the magnetic anomalies are mostly reduced by the greater depth of basement, which is depressed by isostatic loading by the evaporites (kilometres in thickness in places). There is no relationship between seafloor spreading anomalies and the modern distribution of evaporites mapped out using multibeam sonar data; magnetizations are still significant even where the basement lies several kilometres under the evaporites. This suggests that magnetizations have not been more greatly affected by alteration under the evaporites than typically exposed oceanic crust. A prominent magnetization peak commonly occurs at 60–80 km from the axis on both tectonic plates, coinciding with a basement low suggested previously to mark the transition to continental crust closer to the coasts. We suggest an initial burst of volcanism occurred at Chron 5 (at ∼10 Ma) to produce this feature. Furthermore, an abrupt change is found at ∼5 Ma from low-frequency anomalies off-axis to high-frequency anomalies towards the present axis. This potentially represents the stage at which buried spreading centres became exposed. In this interpretation, intrusions such as sills at the buried spreading centre led to broad magnetic anomalies, whereas the later exposure of the spreading centre led to a more typical development of crustal magnetization by rapid cooling of extrusives.
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Williamson, B. J., H. Downes, and M. F. Thirlwall. "The relationship between crustal magmatic underplating and granite genesis: an example from the Velay granite complex, Massif Central, France." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 83, no. 1-2 (1992): 235–45. http://dx.doi.org/10.1017/s0263593300007926.
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ABSTRACTThe Velay granite pluton (Massif Central, France) is the youngest (304 ± 5 Ma) and largest (∼6,900 km2) of the major Massif Central monzogranites/granodiorites and was formed nearly 50 Ma after the cessation of Hercynian continental collision (Pin & Duthou 1990). It is a highly heterogeneous pluton consisting of I-type, high-Sr granites (Sr = 500-900 ppm) with low (+35 to +41) and high (-3 to -5), at its centre, grading into S-type and mixed I-S-type heterogeneous granites of more normal Sr content (100–420 ppm) and higher (+40 to +210) and lower (-3·8 to -7.3) at its margins.The metasedimentary lower crust of the Massif Central was underplated/intruded by mafic mantle-derived magmas between 360 Ma and 300 Ma. From 300-280 Ma (Downes et al. 1991) underplating led to partial melting and granulite facies metamorphism of the underplated material (represented by felsic and mafic meta-igneous lower crustal xenoliths, = –11 to +112, = +2·2 to 8·2, Downes et al 1990). The partial melts assimilated mainly schist but also felsic gneiss and older granite country rock material ( = +100 to +300, = - 5 to -9) to produce the heterogeneous granites. Plagioclase and biotite were accumulated at the base of the intrusion which was intruded to high levels to form the high-Sr granites.
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Gałęziowski, Jakub. "Barbara Gołajewska-Chudzikiewicz, Świat, którego już nie ma." Wrocławski Rocznik Historii Mówionej 5 (October 30, 2015): 143–98. http://dx.doi.org/10.26774/wrhm.99.
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The biographical account of Barbara Gołajewska-Chudzikiewicz was recorded in 2007 as a part of the documentary project “The Forgotten Witnesses to the 20th century” run by the KARTA Centre and the History Meeting House. The narrator tells the story of her life, as well as the story of her family, starting in 1918. As the material is very extensive, in this publication only the fragments regarding the years 1918–1945 are presented. The narrative, in a manner typical for landed gentry of the Kielce region, contains a description of Ms Gołajewska-Chudzikiewicz’s childhood and family life in a small landed estate of Bieganów in the times of the Second Polish Republic. It gives insight into the course of her education, upbringing of children and young people in a landowning family, relations between the servants and the landowners, everyday life in the manor house, along with civilization difficulties, celebrating of holidays, the manor-village relations, and finally the general way the landed family functioned between the countryside and the city. The next important part of the narrative starts with the outbreak of WWII and conveys the everyday life of the manor under German occupation in the General-Government. The narrator describes the functions of the Polish manor in occupation conditions: helping and giving shelter to those displaced from the territories incorporated to the Third Reich, helping the Warsaw Uprising fugitive fighters, active participation in the Home Army structures, and relations with the German invader, as well as food and clothes extortions run by armed groups of unknown provenance, and confrontation with the Soviet army entering from the East.
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Onuonga, I. O., and P. Bowden. "Hot-spring and supergene lanthanide mineralization at the Buru carbonatite centre, Western Kenya." Mineralogical Magazine 64, no. 4 (August 2000): 663–73. http://dx.doi.org/10.1180/002646100549689.
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AbstractThe Tertiary (22 Ma) carbonatite centre at Buru hill is located towards the eastern end of the Nyanza rift, western Kenya. As revealed by geochemistry and petrology of drill core samples, the Buru centre ranges in composition from surficial lateritized pyroclastic ferrocarbonatite to recrystallized ferruginous calciocarbonatite at depth.Mineralogically the lateritic cover of the Buru carbonatite centre is characterized by goethite, hematite, psilomelane, baryte, fluorite with minor calcite, bastnäsite and significant amounts of monazite. A transitional middle zone consists of ferrocarbonatite grading into ferruginous calciocarbonatite containing siderite, baryte and fluorite, a greater proportion of bastnäsite replacing calcite, but lesser proportions of monazite. The lowermost zone consists of ferruginous calciocarbonatite containing intimate mixtures of siderite and calcite, with parisite and synchysite existing as major replacive components of calcite down to depths of 200 m. Synchysite appears to be the more stable form of lanthanide fluorcarbonate at depths below 150 m.Oxygen isotope measurements on separated calcite concentrates from three of the Buru drill cores reveal significant deviations from primary igneous carbonatite values suggesting isotopic re-equilibration with meteoric water. Accepting that the African plate may have been stationery during the past 30 Ma, it is possible to use a modern sample of water from the Kenya rift to estimate the equilibration temperature at which Buru carbonatite in western Kenya has recrystallized. Temperatures of ∼60 to 90°C suggest that the hot-spring activity encouraged the formation of replacive lanthanide fluorcarbonate in ferruginous calciocarbonatite. Lanthanide enrichment also occurred closer to the surface within the pyroclastic ferrocarbonatite at temperatures of ∼40 to 60°C corresponding to waning stages of hot-spring activity. Further lanthanide enrichment redistribution and oxide formation occurred at surface supergene temperatures of ∼20 to 30°C forming the lateritized top of the carbonatite.The wider implications from these carbonatite studies are the recognition that lanthanide enrichment can be preserved in volcanic-subvolcanic centres, and that lanthanide fluorcarbonates can replace calcite in response to circulating hot-spring waters. From a classification point of view, ferrocarbonatites should be seen as products of meteoric hydrothermal systems unrelated to carbonatite magmatic processes
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Martin, Adam P., and Alan F. Cooper. "Post 3.9 Ma fault activity within the West Antarctic rift system: onshore evidence from Gandalf Ridge, Mount Morning eruptive centre, southern Victoria Land, Antarctica." Antarctic Science 22, no. 5 (June 21, 2010): 513–21. http://dx.doi.org/10.1017/s095410201000026x.
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AbstractA hawaiite dyke dated at 3.88 ± 0.05 Ma from the Mount Morning eruptive centre intrudes a diamictite deposit at Gandalf Ridge in the southern Ross Sea. The dyke has been dextrally offset up to 6 m horizontally by faults interpreted as the onshore continuation of the West Antarctic rift system (WARS) fault array. Felsic dykes emplaced during the Miocene are also present at Gandalf Ridge. The offset of the Miocene dykes is equivalent to the offset on the hawaiite dyke, suggesting that at this locality movement on faults within WARS has been restricted to a period more recent than c. 3.88 Ma. Over this period the minimum average rate of movement on these faults within WARS is 0.0015 mm yr-1.
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Soberano, Spencer, Lawson Eng, RuiQi Chen, Ashraf Altesha, Subiksha Nagaratnam, Sarah Rudolph-Naiberg, Simren Chotai, et al. "Comparing cancer survivors' perceptions on lifestyle behaviors between adolescent-young adult (AYA) and middle-aged patients (pts)." Journal of Clinical Oncology 38, no. 29_suppl (October 10, 2020): 207. http://dx.doi.org/10.1200/jco.2020.38.29_suppl.207.
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207 Background: Lifestyle behaviours such as smoking, physical activity, and alcohol consumption are important determinants of cancer survivorship. Previous studies have compared the lifestyle behaviours of elderly and middle-aged patients (pts), yet no studies have compared these behavioural perceptions between AYA (aged 18-39 years) to those of middle-aged pts (MA, 40-64 years). Methods: Cancer pts across various tumour types at a comprehensive cancer centre were surveyed with respect to their perceptions of how their well-being was affected by smoking, physical activity and alcohol consumption after diagnosis. Univariate logistic regression models evaluated factors associated with perceptions on the effect of various adverse lifestyle behaviours on health and well-being. Results: Of 200 AYA (57% female, 43% male) and 772 MA (56% female, 44% male) pts, a positive smoking history was reported by 33% of AYA and 48% of MA (P<0.001). At time of diagnosis, 55% of AYA and 59% of MA pts consumed alcohol, 16% of AYA and 16% of MA were ex-drinkers, and 28% of AYA and 25% of MA were never drinkers (P=0.62). Among AYA, 26% exercised compared to 20% in the MA group (P=0.19). The majority (72-92%) of pts perceived that smoking and lack of activity after cancer diagnosis negatively affected quality of life, survival chances, and fatigue; there were no significant differences between age groups. In contrast, both age cohorts displayed misperceptions about how alcohol affects health, which was characterized by perceiving neutral or beneficial influence on their overall well-being: Fifty-seven percent of MA pts had a borderline greater misperception versus 49% of AYA pts (P=0.06). Misperceptions regarding how alcohol affects survival were observed in 49% of AYA pts and 58% of MA pts (P=0.05). Misperception with respect to how alcohol affects fatigue was observed in 40% of AYA pts compared to 52% of MA pts (P=0.005). Furthermore, MA pts had 1.63 (95% CI 1.16–2.29) times the odds to have misperceptions regarding how alcohol affects fatigue, and 1.41 (95% CI 1.01–1.97) times the odds to have misperceptions on how alcohol affects survival compared to AYA pts. Conclusions: Both the AYA and MA population were not adequately informed about how alcohol affects cancer survivorship health; with more misperceptions in MA pts. Results from this study advocate for survivorship programs to implement emphasis on the deleterious effects of alcohol, with particular efforts tailored to the MA group.
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Barendregt, René W., and Edward Irving. "Changes in the extent of North American ice sheets during the late Cenozoic." Canadian Journal of Earth Sciences 35, no. 5 (May 1, 1998): 504–9. http://dx.doi.org/10.1139/e97-126.
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Magnetostratigraphy indicates that Early Pleistocene glaciations in North America, instead of forming one continuous ice mass from Atlantic to Pacific as they did in the Late Pleistocene, were characterized by eastern and western ice masses separated by a 2000 km wide north-south ice-free corridor down the centre of the continent. We argue, therefore, that the area covered by ice during periods of glaciation, and hence probably ice volume, in North America was considerably less in the first 2 Ma of the late Cenozoic than it was in the last 0.7 Ma. This is consistent with delta 18O records of ocean cores indicating the ice volumes were much less in the earlier than in the later part of the Cenozoic Ice Age.
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van Gool, Jeroen A. M., James N. Connelly, Mogens Marker, and Flemming C. Mengel. "The Nagssugtoqidian Orogen of West Greenland: tectonic evolution and regional correlations from a West Greenland perspective." Canadian Journal of Earth Sciences 39, no. 5 (May 1, 2002): 665–86. http://dx.doi.org/10.1139/e02-027.
Full textAbstract:
The Nagssugtoqidian Orogen of West Greenland represents a belt of Palaeoproterozoic deformation and metamorphism between the North Atlantic Craton of South Greenland and a northern, lesser known continental segment that includes the Rinkian Orogen. First-order observations are interpreted to support a cycle of separation, convergence, and eventual collision of two continental masses. The emplacement of the Kangâmiut dyke swarm marked the onset of continental breakup at ca. 2040 Ma, and sedimentary basins formed between ca. 1950 and 1920 Ma. Subsequent convergence and consumption of an oceanic plate caused arc magmatism at 19201870 Ma. Granulite-facies peak metamorphism at 18601840 Ma in the centre of the orogen is related to crustal thickening by WNW-directed thrusting. Large-scale, upright folding with an eastwest trend was ongoing by 1825 Ma. Sinistral strike-slip movement was concentrated along steeply dipping limbs of these large-scale folds and formed orogen-scale steep belts at ca. 1775 Ma. Close similarities between the northern and southern foreland suggest that the two cratons likely originated from one continuous continental block. Temporal and kinematic correlation of these events with adjoining orogens in Canada and Greenland shows close genetic links. The Nagssugtoqidian Orogen of West Greenland continues eastwards beneath the Greenland Ice cap to the Eastern Nagssugtoqidian belt of East Greenland (a.k.a. the Ammassalik belt). The Torngat Orogen of eastern Canada developed simultaneous with the Nagssugtoqidian Orogen with a kinematic compatibility suggesting that the two orogens formed on the west and north flanks, respectively, of a curved leading continental margin of an indenting North Atlantic Craton.
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Kokowicz, Dorota. "Marka jako nośnik wizerunku kraju pochodzenia — Rosja w narracji marketingowej Moscow Centre of SPARC Technologies o marce Elbrus." Studenckie Prace Prawnicze, Administratywistyczne i Ekonomiczne 38 (December 16, 2021): 71–83. http://dx.doi.org/10.19195/1733-5779.38.5.
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Niniejszy artykuł ma na celu ukazanie, w jaki sposób Moscow Centre of SPARC Technologies (MCST) komunikuje o rosyjskiej marce komputera Elbrus i — tym samym — jak marka ta staje się jednocześnie nośnikiem wizerunku kraju swojego pochodzenia — Rosji. Autorka przedstawia wyniki analizy zawartości strony internetowej MCST, aby ukazać, jaki wizerunek Rosji wyłania się z narracji marketingowej o marce, która to narracja jest pełna odwołań do bieżącej sytuacji politycznej tego kraju i jego historii.
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WANG, YU, ZHAOHUA LUO, M. SANTOSH, SHUZHI WANG, and NA WANG. "The Liuyuan Volcanic Belt in NW China revisited: evidence for Permian rifting associated with the assembly of continental blocks in the Central Asian Orogenic Belt." Geological Magazine 154, no. 2 (February 3, 2016): 265–85. http://dx.doi.org/10.1017/s0016756815001077.
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AbstractThe basaltic pillow lavas in the Liuyuan region of NW China, considered to be part of an ophiolitic suite, have been central to the models on tectonic setting, evolution and timing of the final closure of the Palaeo-Asian Ocean. New field evidence on the sedimentary units associated with the basalts reveals comparable sequences in the northern and southern flanks of the Liuyuan Volcanic Belt with coarse to fine sediments from periphery to the centre. The dacites and rhyolites formed coevally with the pillow basalts. The pillow basalts are interlayered with lacustrine sandstone, claystone and clayey lake deposits. Detrital zircons from these sediments yield zircon U–Pb ages of 291–285 Ma. Andesites, dacites and rhyolites from the basaltic sequence yield U–Pb ages of 280–277 Ma, similar to the 282–280 Ma ages of gabbros that intrude the pillow lavas. All these rocks cover the 460–440 Ma granite and greenschist basement and have been intruded by gabbros of c. 272 Ma age, with subsequent (230–227 Ma) north–south contractional thrusting and folding. The data from our study are incompatible with the existing models that consider the basalts as part of an ophiolitic suite. Along the northern continental margin of China from west to east, the Tarim, Dunhuang-Alxa and North China cratonic areas all show evidence for regional extension through rifting during early–middle Permian time. These rift features and basaltic eruptions occurred coevally with the assembly of various microcontinental blocks against the Siberian craton at c. 300–250 Ma, synchronous with amalgamation of the Central Asian Orogenic Belt (CAOB) on the northern side of the Liuyuan Rift. These events were also broadly synchronous with formation of the global supercontinent Pangea.