scholarly journals Origin, structure and exposure history of a wave-cut platform more than 1 Ma in age at the coast of northern Spain: A multiple cosmogenic nuclide approach

Geomorphology ◽  
2008 ◽  
Vol 93 (3-4) ◽  
pp. 316-334 ◽  
Author(s):  
J. Alvarez-Marrón ◽  
R. Hetzel ◽  
S. Niedermann ◽  
R. Menéndez ◽  
J. Marquínez
Keyword(s):  
Northern Spain ◽  
Cosmogenic Nuclide ◽  
History Of ◽  
Exposure History

scholarly journals 451. Evaluation of Exposure History in Healthcare Personnel with Coronavirus 2019 Disease

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S293-S293
Author(s):  
Sandra Silva ◽  
Thriveen Mana ◽  
Davinder Bhullar ◽  
Beatrice Tabor ◽  
Curtis Donskey
Keyword(s):  
High Risk ◽  
Risk Exposure ◽  
Healthcare Personnel ◽  
Administrative Personnel ◽  
Asymptomatic Carriage ◽  
Moderate Disease ◽  
Control And Prevention ◽  
History Of ◽  
Exposure History ◽  
Atypical Presentations

Abstract Background During the Coronavirus Disease 2019 (COVID-19) pandemic, many healthcare personnel (HCP) have developed COVID-19. However, there is uncertainty regarding whether severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was acquired at work versus in the community. Methods We conducted a cohort study to examine exposure history of personnel with COVID-19 infection or asymptomatic carriage in a VA healthcare system. High-risk exposures were classified based Centers for Disease Control and Prevention criteria. Results Of 578 personnel tested, 49 (8%) had nasopharyngeal swabs with positive PCR results, including 45 (92%) with and 4 (8%) without COVID-19 symptoms. Of the 49 cases, 21 (43%) had a documented high-risk exposure at work, including 14 exposures to COVID-19 patients and 7 exposures to colonized or infected personnel. Exposures to infected patients most often were a result of delays in recognition of COVID-19 due to atypical presentations. Exposures to personnel with COVID-19 most often involved activities such as meals when facemasks were not worn. Most cases occurred among nurses (26, 53%) and administrative personnel (10, 20%); only 3 physicians developed COVID-19. No cases occurred in personnel working on COVID-19 wards. All personnel had mild or moderate disease. Conclusion Forty-three percent of healthcare personnel with COVID-19 had prior high-risk exposures at work. Improved detection of patients with atypical presentations and efforts to reduce high-risk contacts among personnel may reduce the risk for acquisition of SARS-CoV-2. Disclosures All Authors: No reported disclosures

scholarly journals The complex exposure history of the Jiddat al Harasis 073 L-chondrite shower

2008 ◽  
Vol 43 (10) ◽  
pp. 1691-1708 ◽  
Author(s):  
L. HUBER ◽  
E. GNOS ◽  
B. HOFMANN ◽  
K. C. WELTEN ◽  
K. NISHIIZUMI ◽  
...  
Keyword(s):  
History Of ◽  
Exposure History

Exposure history of individual cosmic particles

1991 ◽  
Vol 104 (2-4) ◽  
pp. 315-324 ◽  
Author(s):  
K. Nishiizumi ◽  
J.R. Arnold ◽  
D. Fink ◽  
J. Klein ◽  
R. Middleton ◽  
...  
Keyword(s):  
History Of ◽  
Exposure History

Quaternary glacial history of the Cantabrian Mountains of northern Spain: a new synthesis

2016 ◽  
Vol 433 (1) ◽  
pp. 55-85 ◽  
Author(s):  
Enrique Serrano ◽  
Juan José González-Trueba ◽  
Ramón Pellitero ◽  
Manuel Gómez-Lende
Keyword(s):  
Glacial History ◽  
Northern Spain ◽  
Cantabrian Mountains ◽  
New Synthesis ◽  
History Of

Iberia and The Western Mediterranean

2014 ◽  
Author(s):  
William O'Brien
Keyword(s):  
New Technology ◽  
Western Mediterranean ◽  
Ore Deposits ◽  
Northern Spain ◽  
Metal Mining ◽  
Copper Ore ◽  
Copper Deposits ◽  
History Of ◽  
Copper Metallurgy ◽  
The 1960S

The Iberian Peninsula is one the most mineralized parts of Europe, with a long history of metal mining from prehistoric and Roman to modern times. The earliest evidence for copper metallurgy dates to the fifth millennium BC; however, distinctive Chalcolithic metalworking traditions did not emerge in most regions until 3000 BC onwards. There are widespread occurrences of copper mineralization in Spain and Portugal, including many areas with deposits of lead, tin, silver, and gold. Copper deposits occur in the Galician and Cantabrian mountain ranges of northern Spain, extending east to the Pyrenees. They are also numerous in central Spain, in the provinces of Madrid, Avila, Salamanca, and Segovia in the Central Range, and also in the Toledo and Betic mountains of Cordoba. Farther south, there are major copper deposits in the so-called Pyrite Belt, extending from Seville to Huelva into southern Portugal, and also in the Penibetic range from Cartagena to Malaga crossing the sierras of Almeria (Rovira 2002: fig. 3c; see Delibes de Castro and Montero Ruiz 1999 for regional surveys of copper deposits and indications of early mining; also Gómez Ramos 1999; Hunt Ortiz 2003). The widespread availability of ore deposits was a significant factor in the establishment of copper metallurgy in Iberia. How early is contentious, as is the means by which the new technology first developed in different parts of the peninsula. The older explanation of metal-seeking colonists from the east Mediterranean introducing this technology to southern Spain was replaced in the 1960s by a model that emphasized autonomous development (Renfrew 1967, 1973; Montero Ruiz 1994). This was based on the apparent antiquity of copper mining and metallurgy in Iberia and the distinctive technological processes that developed there relative to other parts of Europe. The earliest indication of copper metallurgy in Iberia may come from the settlement of Cerro Virtud in Almeria, south-west Spain. A single sherd from a metallurgical crucible used to reduce oxidized copper ore was discovered in a layer dated to the early fifth millennium BC (Montero Ruiz and Ruíz Taboada 1996; Ruíz Taboada and Montero Ruiz 1999).

scholarly journals Modeling the Complex Exposure History of Smoking in Predicting Bladder Cancer

Epidemiology ◽  
2019 ◽  
Vol 30 (3) ◽  
pp. 458-465 ◽  
Author(s):  
Frits H. M. van Osch ◽  
Jelle Vlaanderen ◽  
Sylvia H. J. Jochems ◽  
Cristina Bosetti ◽  
Jerry Polesel ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
History Of ◽  
Exposure History

Exposure history of the lunar meteorite, Elephant Moraine 87521

1993 ◽  
Vol 57 (15) ◽  
pp. 3793-3799 ◽  
Author(s):  
S Vogt ◽  
G.F Herzog ◽  
O Eugster ◽  
Th Michel ◽  
S Niedermann ◽  
...  
Keyword(s):  
Lunar Meteorite ◽  
History Of ◽  
Exposure History

scholarly journals The orbit and exposure history of the Piplia Kalan eucrite

1998 ◽  
Vol 33 (3) ◽  
pp. 455-461 ◽  
Author(s):  
N. BHANDARI ◽  
S. V. S. MURTY ◽  
K. M. SUTHAR ◽  
A. D. SHUKLA ◽  
G. M. BALLABH ◽  
...  
Keyword(s):  
History Of ◽  
Exposure History
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