Variation of Time-Averaged Outdoor Radon Concentrations over a Distance of About 50 Kilometres

1988 ◽  
Vol 24 (1-4) ◽  
pp. 97-99 ◽  
Author(s):  
L.W. Put ◽  
R.J. de Meijer

Abstract Time-averaged outdoor radon concentrations (TORC) have been measured over a one year period in the northeastern part of the Netherlands using passive dosemeters. The grid size in these measurements was 5 km. Values obtained in this investigation correspond well with those obtained in a national survey a few years earlier. No indication was found for rapid changes in the TORC values. At all 43 locations total ? ray intensities were also measured. TORC values and ? ray intensities seem to be slightly correlated with soil composition; no clear correlation exists between TORC and ? ray intensity.

Author(s):  
Quinten G. H. Rikken ◽  
Sarah Mikdad ◽  
Mathijs T. Carvalho Mota ◽  
Marcel A. De Leeuw ◽  
Patrick Schober ◽  
...  

Abstract Purpose The SARS-CoV-2 virus has disrupted global and local medical supply chains. To combat the spread of the virus and prevent an uncontrolled outbreak with limited resources, national lockdown protocols have taken effect in the Netherlands since March 13th, 2020. The aim of this study was to describe the incidence, type and characteristics of HEMS and HEMS-ambulance ‘Lifeliner 1’ dispatches during the initial phase of the COVID-19 pandemic compared to the same period one year prior. Methods A retrospective review of all HEMS and HEMS-ambulance ‘Lifeliner 1’ dispatches was performed from the start of Dutch nationwide lockdown orders from March 13th until May 13th, 2020 and the corresponding period one year prior. Dispatch-, operational-, patient-, injury-, and on-site treatment characteristics were extracted for analysis. In addition, the rate of COVID-19 positively tested HEMS personnel and the time physicians were unable to take call was described. Results During the initial phase of the COVID-19 pandemic, the HEMS and HEMS-ambulance was requested in 528 cases. One year prior, a total of 620 requests were received. The HEMS (helicopter and ambulance) was cancelled after deployment in 56.4% of the COVID-19 cohort and 50.7% of the historical cohort (P = 0.05). Incident location type did not differ between the two cohorts, specifically, there was no significant difference in the number of injuries that occurred at home in pandemic versus non-pandemic circumstances. Besides a decrease in the number of falls, the distribution of mechanisms of injury remained similar during the COVID-19 study period. There was no difference in self-inflicted injuries observed. Prehospital interventions remained similar during the COVID-19 pandemic compared to one year prior. Specifically, prehospital intubation did not differ between the two cohorts. The rate of COVID-19 positively tested HEMS personnel was 23.1%. Physicians who tested positive were unable to take call for a mean of 25 days (range 8–53). Conclusion A decrease in the number of deployments and increase in the number of cancelled missions was observed during the COVID-19 study period. No major differences in operational- and injury characteristics were found for HEMS and HEMS-ambulance dispatches between the initial phase of the COVID-19 pandemic in the Netherlands and the same period one year prior. These findings highlight the importance of continued operability of the HEMS, even during pandemic circumstances. Level of evidence III, retrospective comparative study.


2017 ◽  
Vol 8 (4) ◽  
pp. 443-452 ◽  
Author(s):  
Agustín Estrada-Peña ◽  
Xavier Roura ◽  
Angel Sainz ◽  
Guadalupe Miró ◽  
Laia Solano-Gallego
Keyword(s):  

2017 ◽  
Vol 159 (12) ◽  
pp. 2341-2350 ◽  
Author(s):  
Sandra C. Yan ◽  
Alexander F. C. Hulsbergen ◽  
Ivo S. Muskens ◽  
Marjel van Dam ◽  
William B. Gormley ◽  
...  

2015 ◽  
Vol 10 (1) ◽  
Author(s):  
Patricia Doornaert ◽  
◽  
Chris H. J. Terhaard ◽  
Johannes H. Kaanders

2012 ◽  
Vol 02 (07) ◽  
Author(s):  
TP Saltzherr ◽  
A Goossens ◽  
RJ de Haan ◽  
LFM Beenen ◽  
WP Vandertop

2011 ◽  
Vol 39 (5) ◽  
pp. 429-447 ◽  
Author(s):  
Judith van Luijk ◽  
Yvonne Cuijpers ◽  
Lilian van der Vaart ◽  
Marlies Leenaars ◽  
Merel Ritskes-Hoitinga

Author(s):  
Bruno Miranda

Between 1624 and 1654, the Dutch West India Company occupied part of the northeast of Brazil. A private company, in 1621 it obtained from the Republic of the United Provinces of the Netherlands a monopoly on trade and the authorization to conquer land and operate in waters on both sides of the Atlantic Ocean. It was created as a weapon against the Habsburg Monarchy, contrary to whom the Republic waged a long conflict: the Eighty Years War (1568–1648). The primary objective of the Company was to undermine the foundations of the Iberian overseas economy, which was of vital importance to the Spanish empire, and open the ports of the Spanish and Portuguese colonies to the Republic’s merchant vessels. Interest in Brazil was principally related to the possibly of making profits from sugar, tobacco, and wood for dyes, products already distributed in the Republic through direct negotiations of the Dutch in Brazilian ports and indirectly through a trade route that connected Dutch cities and Portuguese ports. Incorporated in the Spanish crown as a result of the 1580 Portuguese dynastic crisis, Brazil became the target of a military assault when trade between Brazil and the Netherlands was affected by the various embargos imposed by the Habsburg Crown. The first great attack of the Company against Brazil resulted in the capture of Salvador, seat of the general government of Brazil in 1624, but their control of the city only lasted one year, resulting in a loss for the Company. After an incredible financial recuperation due to capture of the Spanish silver fleet in 1628, the Company devised a new plan. Pernambuco was the new target. A long conflict continued until January 1654, when the government of the Company of Brazil capitulated to the Portuguese.


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