Results 31 to 40 of about 3,613,230 (210)

High harmonic interferometry of the Lorentz force in strong mid-infrared laser fields

open access: yesNew Journal of Physics, 2018
The interaction of intense mid-infrared laser fields with atoms and molecules leads to a range of new opportunities, from the production of bright, coherent radiation in the soft x-ray range, to imaging molecular structures and dynamics with attosecond ...
Emilio Pisanty   +6 more
doaj   +1 more source

Photoelastic experimental study on the force chain structure and evolution in top coal and overlaying strata under fully mechanized top coal caving mining

open access: yes工程科学学报, 2017
In top coal caving mining, the state of top coal and overburden strata changes from continuous media to discontinuous and loose aggregate media. It is difficult to theoretically describe the transition and action of mining induced pressure in discrete ...
WANG Jin-an   +4 more
doaj   +1 more source

Probability densities of a forced probe particle in glass: results from mode coupling theory and simulations of active microrheology

open access: yes, 2012
We investigate the displacements of a probe particle inside a glass, when a strong external force is applied to the probe (active nonlinear microrheology). Calculations within mode coupling theory are presented for glasses of hard spheres and compared to
Fuchs, Matthias   +3 more
core   +1 more source

Strong Homology and the Proper Forcing Axiom [PDF]

open access: yesProceedings of the American Mathematical Society, 1989
This paper concerns applications of set theory to the problem of calculating the strong homology of certain subsets of Euclidean spaces. We prove the set theoretic result that it is consistent that every almost coinciding family indexed by ω ω ^\omega \omega is trivial (e.g., the proper ...
Dow, Alan   +2 more
openaire   +2 more sources

Plasma pressure and anisotropy inferred from the Tsyganenkomagnetic field model [PDF]

open access: yesAnnales Geophysicae, 1994
A numerical procedure has been developed to deduce the plasma pressure and anisotropy from the Tsyganenko magnetic field model. The Tsyganenko empirical field model, which is based on vast satellite field data, provides a realistic description of ...
F. Cao, L. C. Lee
doaj   +1 more source

Exploring Preferences for a Digital Single‐Session Intervention for Adolescent Siblings of Youth With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Adolescent siblings of children with cancer are at elevated risk for psychosocial problems. Unfortunately, various barriers such as limited family time and resources, conflicting schedules, and psychosocial staffing constraints at cancer centers hinder sibling access to support.
Christina M. Amaro   +10 more
wiley   +1 more source

Orthodontic Force Application in Correlation with Salivary Lactate Dehydrogenase Activity

open access: yesJournal of Dentistry Indonesia, 2013
Orthodontic tooth movement generate mechanical forces to periodontal ligament and alveolar bone. The forces correlate with initial responses of periodontal tissues and involving many metabolic changes.
Erik Husin   +3 more
doaj   +1 more source

On the equivalence principle and gravitational and inertial mass relation of classical charged particles

open access: yes, 2010
We show that the locally constant force necessary to get a stable hyperbolic motion regime for classical charged point particles, actually, is a combination of an applied external force and of the electromagnetic radiation reaction force.
Adelberger E G   +18 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Effects of strong bite force on the facial vertical dimension of pembarong performers

open access: yesDental Journal, 2017
Background: A pembarong performer is a reog dancer who bites on a piece of wood inserted into his/her mouth in order to support a 60 kg Barongan or Dadak Merak mask. The teeth supporting this large and heavy mask are directly affected, as the strong bite
C. Christina   +2 more
doaj   +1 more source

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