Results 41 to 50 of about 5,168,712 (337)

Studying the spectral properties of Active Galactic Nuclei in the JWST era [PDF]

open access: yes, 2009
The James Webb Space Telescope (JWST), due to launch in 2014, shall provide an unprecedented wealth of information in the near and mid-infrared wavelengths, thanks to its high-sensitivity instruments and its 6.5 m primary mirror, the largest ever ...
Alonso-Herrero, A.   +3 more
core   +3 more sources

Automated detection of patients with dementia whose symptoms have been identified in primary care but have no formal diagnosis: a retrospective case–control study using electronic primary care records

open access: yesBMJ Open, 2021
Objectives UK statistics suggest only two-thirds of patients with dementia get a diagnosis recorded in primary care. General practitioners (GPs) report barriers to formally diagnosing dementia, so some patients may be known by GPs to have dementia but ...
Jackie A Cassell   +5 more
doaj   +1 more source

Reflection and noise in the low spectral state of GX339-4 [PDF]

open access: yes, 2001
We analyze RXTE/PCA observations of GX339-4 in the low spectral state from 1996--1997 and show that the pattern of its spectral and temporal variability is nearly identical to that of Cyg X-1.
Beloborodov   +15 more
core   +2 more sources

Next-generation active telescope for space astronomy

open access: yesJournal of Astronomical Telescopes Instruments and Systems, 2022
. We present a design for an active telescope for space astronomy. The telescope is capable of both exoplanet work and general astronomy over wavelengths from ∼100  nm up to 5  μm.
Stefan Martin   +13 more
semanticscholar   +1 more source

Augmented reality mobile application to improve the astronomy teaching-learning process

open access: yesAdvances in Mobile Learning Educational Research, 2022
It is during the primary education stage that children begin to awaken their interest in science and, in turn, have new mathematical, geographical, and scientific knowledge, which are the basis for understanding astronomical aspects.
Saul Beltozar-Clemente   +3 more
semanticscholar   +1 more source

Identifying undetected dementia in UK primary care patients: a retrospective case-control study comparing machine-learning and standard epidemiological approaches

open access: yesBMC Medical Informatics and Decision Making, 2019
Background Identifying dementia early in time, using real world data, is a public health challenge. As only two-thirds of people with dementia now ultimately receive a formal diagnosis in United Kingdom health systems and many receive it late in the ...
Elizabeth Ford   +7 more
doaj   +1 more source

Ultra-high energy cosmic rays with the Pierre Auger Observatory [PDF]

open access: yesEPJ Web of Conferences, 2023
In the era of multi-messenger astronomy, ultra-high energy cosmic rays offer the unique opportunity to investigate the nature of astrophysical sources and of particle interactions in an energy range far beyond that covered by current particle ...
Perrone Lorenzo
doaj   +1 more source

Astronomiaren arloan Lehen Hezkuntzako graduko ikasleen ezagutzari buruzko ikerketa [PDF]

open access: yesIkastorratza.e-Revista de Didáctica, 2017
This study examines the understanding that preservice teachers have on astronomy, a very relevant educational objective at primary levels. To that end, a sample of students in their final educational level of the Bachelor of Primary Education has been ...
Jon Ander Garibi
doaj  

Pre-School Teachers' Experiences in Astronomy Education

open access: yesİnönü Üniversitesi Eğitim Fakültesi Dergisi, 2022
Astronomy subjects and concepts have always been a fascinating subject at the center of children’s attention. As a result, it is critical to reveal pre-school teachers' experiences in astronomy education, to determine how they design activities and carry
Eser Ültay, Neslihan Ültay
semanticscholar   +1 more source

Commensal observing with the Allen Telescope array: software command and control

open access: yes, 2010
The Allen Telescope Array (ATA) is a Large-Number-Small-Diameter radio telescope array currently with 42 individual antennas and 5 independent back-end science systems (2 imaging FX correlators and 3 time domain beam formers) located at the Hat Creek ...
Ackermann, Robert   +8 more
core   +1 more source

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