Results 61 to 70 of about 527,719 (327)

$\phi^4$-Model and Holography in Four Dimensions

, 2006
The generating function of correlators of dual operators on the boundary of (A)dS4 space corresponding to the conformally coupled $\phi^4$-model is obtained up to first order in the coupling constant by using the conformal map between massless scalar ...
't Hooft, Arutyunov, Bekenstein, Bekenstein, Bekenstein, Bousso, Bousso, de Boer, Farhang Loran, Ghezelbash, Gibbons, Henneaux, Henningson, Jacobson, Loran, Loran, Maldacena, Mück, Solodukhin, Spradlin, Strominger, Susskind, Susskind, Witten   +23 more
core   +2 more sources

A Synovium‐on‐Chip Platform to Study Multicellular Interactions in Arthritis

Advanced Healthcare Materials, EarlyView.
The Synovium‐on‐Chip comprises a thin microporous PDMS membrane to support co‐culture of fibroblast‐like synoviocytes (FLS), THP‐1‐derived macrophages, and endothelial cells, enabling real‐time analysis of synovial‐vascular interactions. FLS migration through the pores drives endothelial remodeling, while TNF‐α stimulation induces robust inflammatory ...
Laurens R. Spoelstra, Fleur R. Semmekrot, Nuno Araújo‐Gomes, Daniël Wijnperle, Monique M. A. Helsen, Martijn H.J. Van Den Bosch, Loes. I. Segerink, Séverine Le Gac, Marcel Karperien   +8 more
wiley   +1 more source

On convolution surfaces in Euclidean 3-space

Journal of Mathematical Sciences and Modelling, 2018
In the present paper we study with the convolution surface $C=M\star N$ of a paraboloid $M\subset \mathbb{E}^{3}$ and a parametric surface $N\subset \mathbb{E}^{3}$.
Kadri Arslan, Selin Aydöner
doaj   +1 more source

On the Dirac Eigenvalues as Observables of the on-shell N=2 D=4 Euclidean Supergravity

, 2004
We generalize previous works on the Dirac eigenvalues as dynamical variables of the Euclidean gravity and N=1 D=4 supergravity to on-shell N=2 D=4 Euclidean supergravity. The covariant phase space of the theory is defined as as the space of the solutions
A. Ashtekar, A. Connes, A.V. Belitsky, C. Ciuhu, C. J. Isham, G. Landi, G. Landi, G. Landi, G. Landi, I.V. Vancea, I.V. Vancea, M.A. Andrade De, M.C.B. Abdalla, M.F. Atiyah, N. Pauna, O. Aharony, P. Gilkey, P. Nieuwenhuizen van, P. Nieuwenhuizen van, R. Pietri De, S.I. Vacaru, S.I. Vacaru, U. Theis   +22 more
core   +2 more sources

Transistor‐Level Activation Functions via Two‐Gate Designs: From Analog Sigmoid and Gaussian Control to Real‐Time Hardware Demonstrations

Advanced Materials, EarlyView.
Screen gate‐based transistors are presented, enabling tunable analog sigmoid and Gaussian activations. The SA‐transistor improves MRI classification accuracy, while the GA‐transistor supports precise Gaussian kernel tuning for forecasting. Both functions are implemented in a single device, offering compact, energy‐efficient analog AI processing ...
Junhyung Cho, Youngmin Han, Won Woo Lee, Youngwoo Yoo, Kannan Udaya Mohanan, Chang‐Hyun Kim, Junhwan Choi, Young‐Joon Kim, Wonjun Shin, Hocheon Yoo   +9 more
wiley   +1 more source

On the total mean curvature of non-rigid surfaces

, 2008
Using Green's theorem we reduce the variation of the total mean curvature of a smooth surface in the Euclidean 3-space to a line integral of a special vector field and obtain the following well-known theorem as an immediate consequence: the total mean ...
A. D. Alexandrov, I. Kh. Sabitov, I. Kh. Sabitov, J.-M. Schlenker, R. Souam, Victor A. Alexandrov, Yu. G. Reshetnyak   +6 more
core   +1 more source

Untethered Magnetic Microswimmers for Targeted Particle Transport and Flow Manipulation

Advanced Materials Technologies, EarlyView.
This work introduces magnetically actuated microswimmers to dynamically reconfigure fluid flow within a single microfluidic device. Multiple homogeneous microswimmers are independently controlled by an external magnetic field to perform translational and rotational motions, thereby inducing real‐time flow manipulation.
Dineshkumar Loganathan, Dong‐Ming He, Kai‐Wei Chen, Chia‐Yuan Chen   +3 more
wiley   +1 more source

Homothetic motions in Euclidean 3-space

Kuwait Journal of Science, 2014
A one-parameter homothetic motion of a rigid body in three-dimensional Euclidean space is defined by means of the Hamilton operators. We investigate some properties of this motion and show that it has only one pole point at every instant  Furthermore ...
MEHDI JAFARI
doaj  

Offset Ruled Surface in Euclidean Space with Density

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
In this paper, offset ruled surfaces in these spaces are defined by using the geometry of ruled surfaces in Euclidean space with density. The mean curvature and Gaussian curvature of these surfaces are studied.
Ulucan Neslihan, Akyigit Mahmut
doaj   +1 more source

Classification of finite groups generated by reflections and rotations

, 2015
We survey the existing parts of a classification of finite groups generated by orthogonal transformations in a finite-dimensional Euclidean space whose fixed point subspace has codimension one or two and extend it to a complete classification.
Lange, Christian, Mikhailova, Marina A.
core   +1 more source