Results 81 to 90 of about 20,448,734 (385)
A two-point boundary value problem on a Lorentz manifold arising in A. Poltorak's concept of reference frame [PDF]
, 2006 In A. Poltorak's concept, the reference frame in General Relativity is a certain manifold equipped with a connection. The question under consideration here is whether it is possible to join two events in the space-time by a time-like geodesic if they are joined by a geodesic of the reference frame connection that has a time-like initial vector.
arxiv +1 more source
Multiple $q$-Zeta Values [PDF]
Journal of Algebra, Volume 283, Issue 2, 15 January 2005, pp.
752--798. MR2111222 (2006f:11106), 2004 We introduce a $q$-analog of the multiple harmonic series commonly referred to as multiple zeta values. The multiple $q$-zeta values satisfy a $q$-stuffle multiplication rule analogous to the stuffle multiplication rule arising from the series representation of ordinary multiple zeta values.
arxiv +1 more source
Making tau amyloid models in vitro: a crucial and underestimated challenge
FEBS Letters, EarlyView.This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley +1 more source
Discussion on the Value of X-Rays in the Localization of Cerebral and Spinal Tumours, with Special Reference to Ventriculography and Lipiodol Injections [PDF]
, 1924 Jefferson
+6 more sources
Health and Quality of Life Outcomes, 2018 Background The Hip disability and Osteoarthritis Outcome Score (HOOS) is a self-administered hip-specific questionnaire intended to evaluate symptoms and functional limitations, and it is commonly used to evaluate interventions in individuals with hip ...
A Sundén +4 more
doaj +1 more source
, 2015 A method is presented for analysing over-determined sets of clock frequency comparison data involving standards based on a number of different reference transitions.
Gill, P., Margolis, H. S.
core +1 more source
Free Yang-Mills vs. Toric Sasaki-Einstein [PDF]
, 2007 It has been known that the Bekenstein-Hawking entropy of the black hole in AdS_5 * S^5 agrees with the free N=4 super Yang-Mills entropy up to the famous factor 4/3. This factor can be interpreted as the ratio of the entropy of the free Yang-Mills to the
Nishioka, Tatsuma, Takayanagi, Tadashi
core +4 more sources
Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms
FEBS Letters, EarlyView.Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze +3 more
wiley +1 more source
Journal of Nutrition and Food Security, 2021 Background: Reference measurements are used to screen for abnormal blood lipids. The problem is that these reference values obtained in one population cannot be effective for another population.
Hossein Fallahzadeh +2 more
doaj
Normal bladder wall thickness measurement in healthy Iranian children, a cross-sectional study
Advanced Biomedical Research, 2014 Background: Normal bladder function is necessary for micturition. Many causes such as urinary tract infection, bladder outlet obstruction, and neuropathic bladder can influence bladder wall thickness (BWT).This study was designed to determine normal BWT ...
Atoosa Adibi +2 more
doaj +1 more source