Zobrazeno 1 - 10
of 473
pro vyhledávání: '"Andrea Held"'
Autor:
Tommaso Calloni, Louis Georges Roumy, Maria Allegra Cinalli, Alessandra Rocca, Andrea Held, Andrea Trezza, Giorgio Giovanni Carrabba, Carlo Giorgio Giussani
Publikováno v:
Frontiers in Surgery, Vol 9 (2022)
Recently, the emergence of the three-dimensional (3D) exoscope has proven to be a viable alternative to the operative microscope (OM) as a novel workhorse of microneurosurgical procedures. Through its current iteration, the 3D exoscope has been demon
Externí odkaz:
https://doaj.org/article/d026362fd50941debb455622d5b7e42e
Autor:
Carlo Giussani, Andrea Trezza, Vittorio Ricciuti, Andrea Di Cristofori, Andrea Held, Valeria Isella, Maura Massimino
Publikováno v:
Child's Nervous System. 38:1445-1454
Purpose: The extent of brain tumor resection (EOR) is a fundamental prognostic factor in pediatric neuro-oncology in association with the histology. In general, resection aims at gross total resection (GTR). Intraoperative imaging like intraoperative
Autor:
Ulf Jacobsson, Rita La Spina, Claudia Cella, Douglas Gilliland, John Seghers, Dora Mehn, Andrea Held, Elzbieta Stefaniak, Håkan Emteborg
Publikováno v:
Analytical and Bioanalytical Chemistry
Validation of analytical methods for measurements of microplastics (MP) is severely hampered because of a general lack of reference materials, RM. There is a great need to develop such reference materials. This study presents a concept of three-compo
A new certified reference material for size and shape analysis of nanorods using electron microscopy
Publikováno v:
Analytical and Bioanalytical Chemistry
A new certified reference material (CRM) for size and shape analysis of elongated nanoparticles has been developed by the European Commission’s Joint Research Centre. The CRM consists of titanium dioxide nanorods dispersed in 1-butanol, was coded E
Autor:
Steven J. Choquette, Håkan Emteborg, Stefanie Trapmann, Andrea Held, Sook-Kyung Kim, Thomas P. J. Linsinger, Doris Florian, Ulrich Panne, Stephen L. R. Ellison, Lindsey G. Mackay, Sylvia G. Sander, Pearse McCarron, Maria Fernandes-Whaley
Publikováno v:
Standartnye Obrazcy, Vol 15, Iss 2, Pp 7-13 (2019)
Accreditation and quality assurance : journal for quality, comparability and reliability in chemical measurement
Accreditation and quality assurance : journal for quality, comparability and reliability in chemical measurement
The meeting was organised by the European Commission’s Joint Research Centre and held at the JRC-Geel site on 22–23 February 2018. It was a follow-up of a similar meeting held in 2009. The objective of the meeting was to exchange information abou
Publikováno v:
Analytical and Bioanalytical Chemistry
The existing Air Quality Directive 2008/50/EC establishes within the European Union (EU) member states limit values for fine air particulate matter (PM2.5) including the possibility to discount natural sources of pollution when assessing compliance w
Autor:
John Seghers, Håkan Emteborg, Marie-France Tumba-Tshilumba, Andrea Held, James Snell, Giovanni Emma, Jean Charoud-Got, Anna Santoro
Publikováno v:
Analytical and Bioanalytical Chemistry. 409:7121-7131
A reference material of a PM2.5-like atmospheric dust material has been prepared using a newly developed method. It is intended to certify values for the mass fraction of SO4 2−, NO3 −, Cl− (anions) and Na+, K+, NH4 +, Ca2+, Mg2+ (cations) in t
Publikováno v:
TrAC Trends in Analytical Chemistry. 89:34-40
A number of different digestion methods, including aqua regia extraction following two ISO guides were used in an inter-laboratory comparison study. The results obtained showed comparable values for the total and aqua regia extractable content of As,
Publikováno v:
Fuel. 286:119367
In recent years, quality requirements of automotive diesel fuel have become considerably important. In the European Union fuels may only be placed on the market if they comply with the specifications set out in the fuel quality directive. Member Stat
Autor:
Mirko Hotzy, Andrea Held, Marek Adar, Chris Antognini, Ronnie Egner, Markus Flechtner, Angelika Gallwitz, Stefan Oehrli, Daniel Steiger
Publikováno v:
Der Oracle DBA. :785-807