Results 41 to 50 of about 507,636 (319)
Monads, Strings, and M Theory [PDF]
, 1997 The recent developments in string theory suggest that the space-time coordinates should be generalized to non-commuting matrices. Postulating this suggestion as the fundamental geometrical principle, we formulate a candidate for covariant second ...
Hofman, Christiaan, Park, Jae-Suk
core +2 more sources
Kinematic and dynamic analysis of a serial manipulator with local closed loop mechanisms
Vietnam Journal of Mechanics, 2019 This paper addresses the kinematic and dynamic modelling and analysis for a robot arm consisting of two hydraulic cylinders driving two revolute joints of the arm.
Chu Anh My, Vu Minh Hoan
doaj +1 more source
Modeling and Simulation of Cross-Rudder Underactuated AUV Based on Kane Dynamics
水下无人系统学报, 2023 In order to obtain a more accurate dynamics model of autonomous undersea vehicles(AUVs), the kinematics and dynamics equations of the cross-rudder underactuated AUV were deduced by introducing the related knowledge of Kane dynamics.
Ke YANG
doaj +1 more source
The generalized MIC-Kepler system
, 2003 This paper deals with dynamical system that generalizes the MIC-Kepler system. It is shown that the Schr\"{o}dinger equation for this generalized MIC-Kepler system can be separated in spherical and parabolic coordinates. The spectral problem in spherical
Bellucci S. +20 more
core +3 more sources
Generalized Lemaitre-Tolman-Bondi Solutions with Pressure [PDF]
, 2006 Utilizing the ADM equations, we derive a metric and reduced field equations describing a general, spherically symmetric perfect fluid. The metric describes both the interior perfect fluid region and exterior vacuum Schwarzschild spacetime in a single ...
Lasky, Paul, Lun, Anthony
core +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Psychological safety (PS) is essential for teamwork, communication, and patient safety in complex healthcare environments. In pediatric oncology, interprofessional collaboration occurs under high emotional and organizational demands. Low PS may increase stress, burnout, and adverse events.
Alexandros Rahn +4 more
wiley +1 more source
Thermal Field Theory and Generalized Light Front Coordinates
, 2003 The dependence of thermal field theory on the surface of quantization and on the velocity of the heat bath is investigated by working in general coordinates that are arbitrary linear combinations of the Minkowski coordinates.
G.P. Lepage +18 more
core +1 more source
Branes as solutions of gauge theories in gravitational field [PDF]
, 2014 The idea of the Gauss map is unified with the concept of branes as hypersurfaces embedded into $D$-dimensional Minkowski space. The map introduces new generalized coordinates of branes alternative to their world vectors $\mathbf{x}$ and identified with ...
Zheltukhin, A. A.
core +2 more sources
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
By dawn or dusk—how circadian timing rewrites bacterial infection outcomes
FEBS Letters, EarlyView.The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo +2 more
wiley +1 more source