Results 21 to 30 of about 2,693,151 (289)
International Journal of General Medicine, 2022 Dania AlKhafaji,1 Reem Al Argan,1 Waleed Albaker,1 Abdulmohsen Al Elq,1 Mohammed Al-Hariri,2 Abir AlSaid,1 Abrar Alwaheed,1 Safi Alqatari,1 Alaa Alzaki,1 Sara Alwarthan,1 Fatimah AlRubaish,1 Haya AlGuaimi,1 Fatema Ismaeel,1 Nidaa Alsaeed,1 Zainab AlElq,1
AlKhafaji D +15 more
doaj
Dark matter and dark energy proposals: maintaining cosmology as a true science?
, 2008 I consider the relation of explanations for the observed data to testability in the following contexts: observational and experimental detection of dark matter; observational and experimental detection of dark energy or a cosmological constant $\Lambda$;
Biswas +16 more
core +2 more sources
Observational and Experimental Gravity
, 2017 We indicate the progress of experimental gravity, present an outlook in this field, and summarise the Observational/Experimental Parallel Session together with a related plenary talk on gravitational waves of the 2nd LeCosPA Symposium.Comment: 1 figure ...
Alighieri, Sperello di Serego +5 more
core +1 more source
Observational manifestations of anomaly inflow [PDF]
, 2005 In theories with chiral couplings, one of the important consistency requirements is that of the cancellation of a gauge anomaly. In particular, this is one of the conditions imposed on the hypercharges in the Standard Model. However, anomaly cancellation
Boyarsky, Alexey +2 more
core +4 more sources
Observability and observers in a food web
Applied Mathematics Letters, 2007 The problem of the possibility to recover the time-dependent state of a whole population system out of the observation of certain components has been studied in earlier publications, in terms of the observability concept of mathematical systems theory. In the present note a method is proposed to effectively calculate the state process.
Inmaculada López +2 more
openaire +3 more sources
What Observational/Theoretical Distinction Can Do [PDF]
Metaphysics, 2014 Some analytic philosophers have argued that in order to have a genuine distinction the border line should have a completely a priori specified place. This condition has been suggested by some philosophers (e.g.
J Moazzenzadeh
doaj
Observational Consequences of a Landscape
, 2005 In this paper we consider the implications of the "landscape" paradigm for the large scale properties of the universe. The most direct implication of a rich landscape is that our local universe was born in a tunnelling event from a neighboring vacuum ...
A.R. Liddle +23 more
core +1 more source
Adverse events and safety issues associated with physical activity and exercise for adults with osteoporosis and osteopenia: A systematic review of observational studies and an updated review of interventional studies [PDF]
, 2018 Objectives: We conducted a systematic review to identify adverse effects of physical activity and/or exercise for adults with osteoporosis/osteopenia. We synthesised evidence from observational studies, and updated three previously published systematic ...
Clark, Emma M. +7 more
core +3 more sources
Observational Probes of Dark Energy
, 2012 The cause for the observed acceleration in the expansion of the universe is unknown, and referred to as "dark energy" for convenience. Dark energy could be an unknown energy component, or a modification of Einstein's general relativity. This dictates the
Wang, Yun
core +1 more source
npj Digital MedicineUsing administrative claims and electronic health records for observational studies is common but challenging due to data limitations. Researchers rely on phenotype algorithms, requiring labor-intensive chart reviews for validation.
Martijn J. Schuemie +7 more
doaj +1 more source