Results 71 to 80 of about 235,556 (291)

Effect of the covariance matrix type on the CPT based soil stratification utilizing the Gaussian mixture model

open access: yesJournal of the Mechanical Behavior of Materials, 2022
The identification and stratification of soils represent an essential step in designing various geotechnical structures. The cone penetration test (CPT) measurements are used widely to classify the soil; however, the soil classification charts such as ...
Thajeel Jawad K.   +3 more
doaj   +1 more source

New Clock Comparison Searches for Lorentz and CPT Violation

open access: yes, 2000
We present two new measurements constraining Lorentz and CPT violation using the Xe-129 / He-3 Zeeman maser and atomic hydrogen masers. Experimental investigations of Lorentz and CPT symmetry provide important tests of the framework of the standard model
Bear, David   +6 more
core   +2 more sources

Systemic Hormonal Contraceptive Use Is Associated With Greater Odds of Rotator Cuff Tears, Shoulder Instability, Dislocation, and Other Shoulder Pathologies: A Propensity Matched Epidemiological Study

open access: yesArthroscopy, EarlyView.
Purpose To evaluate whether systemic estrogen‐only, progestin‐only, or combined hormonal contraceptives (HCs) are associated with increased risk of shoulder pathologies in reproductive‐age females. Methods A retrospective cohort study of female patients presenting to clinic from 2013 to 2020 and aged 13‐50 with 5 years of follow‐up was conducted using ...
Argen Omurzakov   +7 more
wiley   +1 more source

Hadronic vacuum polarization to three loops in chiral perturbation theory

open access: yesJournal of High Energy Physics
Hadronic vacuum polarization at low virtualities limits the precision of experimental tests of the standard model via important physical observables. Here we compute that effect in two-flavor chiral perturbation theory to three loops.
Laurent Lellouch   +4 more
doaj   +1 more source

Estudio de polvos y recubrimientos metaestables de NiTi obtenidos por proyección térmica de plasma

open access: yesRevista de Metalurgia, 2008
El compuesto intermetálico de NiTi es conocido por su capacidad de memoria de forma así como por su pseudoelasticidad. Debido, además, a su alta resistencia a corrosión (biocompatiblidad), la gran mayoría de estudios se centran en su uso para ...
I. G. Cano   +3 more
doaj   +1 more source

Overview of Encapsulated Lysine and Methionine and Their Impacts on Transition Cow Performance and Health

open access: yesAnimal Research and One Health, EarlyView.
The transition period in dairy cows, spanning 3 weeks before and after calving, is a critical phase characterized by increased nutrient demands, reduced dry matter intake (DMI), and elevated risk of metabolic disorders such as negative nutrient balance (NNB), lipolysis, proteolysis, and oxidative stress.
Mohammed S. Seleem   +5 more
wiley   +1 more source

Using Quantum entanglement to study CP and CPT violations

open access: yes, 2013
We report some general phenomenological results concerning CP and CPT violations in joint decays of entangled pseudoscalar neutral mesons.Comment: 4 pages.
Shi, Yu
core   +1 more source

Prescribing competence: The pros and cons of different methods for assessment

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Evaluating a medical graduate’s competence in rational prescribing is challenging. With the aim to guide and inspire teachers, this narrative review explores different methods that can be used to assess prescribing competence. Each method has its own advantages and disadvantages, and thus a mix of different assessment methods is needed throughout the ...
David J. Brinkman   +3 more
wiley   +1 more source

Spatially local energy density of gravitational waves

open access: yesJournal of High Energy Physics
We propose a new set of BMS charges at null infinity, characterized by a super-translation flux that contains only the ‘hard’ term. This is achieved with a specific corner improvement of the symplectic 2-form, and we spell the conditions under which it ...
Antoine Rignon-Bret, Simone Speziale
doaj   +1 more source

Observation of coherent population trapping in a V-type two-electron system

open access: yes, 2015
We observe coherent population trapping (CPT) in a two-electron atom---$^{174}$Yb---using the $\rm {^1S_0,F=0} \rightarrow {^3P_1,F'=1}$ transition. CPT is not possible for such a transition according to one-electron theory because the magnetic sublevels
Natarajan, Vasant, Singh, Alok K.
core   +1 more source

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