42 research outputs found
Radio emission of highly inclined cosmic ray air showers measured with LOPES
LOPES-10 (the first phase of LOPES, consisting of 10 antennas) detected a
significant number of cosmic ray air showers with a zenith angle larger than
50, and many of these have very high radio field strengths. The most
inclined event that has been detected with LOPES-10 has a zenith angle of
almost 80. This is proof that the new technique is also applicable
for cosmic ray air showers with high inclinations, which in the case that they
are initiated close to the ground, can be a signature of neutrino events.Our
results indicate that arrays of simple radio antennas can be used for the
detection of highly inclined air showers, which might be triggered by
neutrinos. In addition, we found that the radio pulse height (normalized with
the muon number) for highly inclined events increases with the geomagnetic
angle, which confirms the geomagnetic origin of radio emission in cosmic ray
air showers.Comment: A&A accepte
Prospective multicentre multifaceted before-after implementation study of ICU delirium guidelines: a process evaluation
Objective We aimed to explore: the exposure
of healthcare workers to a delirium guidelines
implementation programme; effects on guideline
adherence at intensive care unit (ICU) level; impact
on knowledge and barriers, and experiences with the
implementation.
Design A mixed-methods process evaluation of a
prospective multicentre implementation study.
Setting Six ICUs.
Participants 4449 adult ICU patients and 500 ICU
professionals approximately.
Intervention A tailored implementation programme.
Main outcome measure Adherence to delirium
guidelines recommendations at ICU level before, during
and after implementation; knowledge and perceived
barriers; and experiences with the implementation.
Results Five of six ICUs were exposed to all
implementation strategies as planned. More than 85%
followed the required e-learnings; 92% of the nurses
attended the clinical classroom lessons; five ICUs used
all available implementation strategies and perceived
to have implemented all guideline recommendations
(>90%). Adherence to predefined performance indicators
(PIs) at ICU level was only above the preset target
(>85%) for delirium screening. For all other PIs, the
inter-ICU variability was between 34% and 72%. The
implementation of delirium guidelines was feasible and
successful in resolving the majority of barriers found
before the implementation. The improvement was well
sustained 6months after full guideline implementation.
Knowledge about delirium was improved (from 61% to
65%). The implementation programme was experienced as
very successful.
Conclusions Multifaceted implementation can improve
and sustain adherence to delirium guidelines, is feasible
and can largely be performed as planned. However,
variability in delirium guideline adherence at individual
ICUs remains a challenge, indicating the need for more
tailoring at centre level
Results from the KASCADE, KASCADE-Grande, and LOPES experiments
The origin of high-energy cosmic rays in the energy range from 10^14 to 10^18
eV is explored with the KASCADE and KASCADE-Grande experiments. Radio signals
from air showers are measured with the LOPES experiment. An overview on results
is given.Comment: Talk at The ninth International Conference on Topics in Astroparticle
and Underground Physics, TAUP 2005, Zaragoza, September 10-14, 200
Combined LOPES and KASCADE-Grande Data Analysis
First analyses of coincident data of the LOPES (LOfar PrototypE Station)
radio antennas with the particle air shower experiment KASCADE-Grande show
basic correlations in the observed shower parameters, like the strength of the
radio signal and the particle number, or comparing the estimated shower
directions. In addition, an improvement of the experimental resolution of the
shower parameters reconstructed by KASCADE-Grande can be obtained by including
the data of the radio antennas. This important feature will be shown in this
article explicitely by an example event.Comment: 5 pages, Proceedings of International Workshop on Acoustic and Radio
EeV Neutrino detection Activities: ARENA, May 17-19, 2005, DESY Zeuthe
Nurses' perceptions of aids and obstacles to the provision of optimal end of life care in ICU
Contains fulltext :
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Editorial: A magazine of neither: twenty-five years of Oase
ArchitectureArchitectur
Een spontane leverbloeding tijdens de zwangerschap: een zeldzame, levensbedreigende situatie
Three pregnant women, of whom 2 were 33 and 1 was 35 years of age, were seen; 2 of them had upper abdominal pain and 1had oedema. All had proteinuria and liver enzyme abnormalities, and pre-eclampsia or the HELLP syndrome was suspected. They were consequently admitted and at first treated with antihypertensive agents. One patient underwent a Caesarean section and the baby had a good start. Afterwards, however, the patient developed shock. A CT-scan revealed a hepatic rupture, for which repeated surgical packing of the liver was carried out. The postoperative course was complicated. A second patient developed shock and the foetus died. Here the CT-scan revealed a liver haematoma. At surgery the next day, removal of the foetus was followed by heavy uterine bleeding. The patient again developed shock and the uterus was resected. A haematoma that was seen in the liver was treated expectatively. The postoperative course was not complicated. In a third patient, abdominal echography revealed bleeding from the liver. Simultaneous Caesarean section and surgical exploration of the liver took place, with packing of the liver. The child had Apgar scores of 4, 7 and 9. After re-laparotomy because of persistent bleeding from the liver the patient recovered. Spontaneous liver haemorrhage and hepatic rupture during pregnancy is a rare condition associated with significant maternal and perinatal mortality. The majority of cases occur during pregnancies complicated by pre-eclampsia or the HELLP syndrome. The presenting symptoms are non-specific. A high index of suspicion is important and early evaluation with imaging is necessary to improve the prognosis of both mother and chil
BRAND - The next generation receiver for VLBI
The aim of the BRAND EVN project is to build a very wide receiver prototype for primary focus with a frequency range from 1.5 GHz to 15.5 GHz In addition we will investigate solutions for secondary focus telescopes. The project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 730562 [RadioNet]. We present the status of the project which was started on January 1st, 2017 and is progressing smoothly: Feed, LNA, filters, major digital components, and some of the firmware are available now.\ua0\ua9 Copyright owned by the author(s) under the terms of the Creative Commons