Results 71 to 80 of about 23,344,103 (371)

Growth of phase-pure, crack-free single crystals and large-grained polycrystals of molybdenum disilicide [PDF]

open access: yes, 1970
High purity molybdenum disilicide crystals are prepared by zone melting sintered compacts. This method yields single crystals or polycrystals free from macrocracks which allow better measurement and evaluation of mechanical ...
Rossetti, M.
core   +1 more source

Re-evaluation of the LHC potential for the measurement of Mw [PDF]

open access: yes, 2007
We present a study of the LHC sensitivity to the W boson mass based on simulation studies. We find that both experimental and phenomenological sources of systematic uncertainties can be strongly constrained with Z measurements: the lineshape is robustly ...
A.D. Martin   +39 more
core   +2 more sources

A Systematic Review of Evidence on the Clinical Effectiveness of Surveillance Imaging in Children With Medulloblastoma and Ependymoma

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Surveillance imaging aims to detect tumour relapse before symptoms develop, but it's unclear whether earlier detection of relapse leads to better outcomes in children and young people (CYP) with medulloblastoma and ependymoma. This systematic review aims to identify relevant literature to determine the efficacy of surveillance magnetic ...
Lucy Shepherd   +3 more
wiley   +1 more source

Development and Validation of a Vertical Scale for Formative Assessment in Mathematics

open access: yesFrontiers in Education, 2019
The regular formative assessment of students' abilities across multiple school grades requires a reliable and valid vertical scale. A vertical scale is a precondition not only for comparing assessment results and measuring progress over time, but also ...
Stéphanie Berger   +5 more
doaj   +1 more source

Coherent quantum measurement for the direct determination of the degree of polarization and Polarization Mode Dispersion compensation

open access: yes, 2000
An example of a coherent measurement for the direct evaluation of the degree of polarization of a single-mode optical beam is presented. It is applied to the case of great practical importance where depolarization is caused by polarization mode ...
Bouwmeester D., N. Gisin
core   +1 more source

Pathogenic Germline PALB2 and RAD50 Variants in Patients With Relapsed Ewing Sarcoma

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Approximately 10% of patients with Ewing sarcoma (EwS) have pathogenic germline variants. Here, we report two cases: first, a novel germline pathogenic variant in partner and localizer of BRCA2 (PALB2) in a patient with a late EwS relapse. Its impact on homologous recombination is demonstrated, and breast cancer risk is discussed.
Molly Mack   +12 more
wiley   +1 more source

Improvement of Measurement Efficiency in Multistage Tests by Targeted Assignment

open access: yesFrontiers in Education, 2019
A good match between item difficulty and student ability ensures efficient measurement and prevents students from becoming discouraged or bored by test items that are too easy or too difficult.
Stéphanie Berger   +5 more
doaj   +1 more source

Assessing the representativeness of wind data for wind turbine site evaluation [PDF]

open access: yes, 1981
Once potential wind turbine sites (either for single installations or clusters) are identified through siting procedures, actual evaluation of the sites must commence.
Corotis, R. B., Renne, D. S.
core   +1 more source

Exploring Slow Responses in International Large-Scale Assessments Using Sequential Process Analysis

open access: yesComputers
Slow responding in International Large-Scale Assessments (ILSAs) has received far less attention than rapid guessing, despite its potential to reveal heterogeneous response processes. Unlike disengaged rapid responders, slow responders may differ in time
Daniel Jerez   +2 more
doaj   +1 more source

Psychological Safety Among Interprofessional Pediatric Oncology Teams in Germany: A Nationwide Survey

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Psychological safety (PS) is essential for teamwork, communication, and patient safety in complex healthcare environments. In pediatric oncology, interprofessional collaboration occurs under high emotional and organizational demands. Low PS may increase stress, burnout, and adverse events.
Alexandros Rahn   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy