Results 41 to 50 of about 1,445,474 (283)

On diffeomorphism invariance for lattice theories

, 1996
We consider the role of the diffeomorphism constraint in the quantization of lattice formulations of diffeomorphism invariant theories of connections.
't Hooft, Achúcarro, Alejandro Corichi, Ashtekar, Ashtekar, Ashtekar, Ashtekar, Ashtekar, Ashtekar, Ashtekar, Barbero, Bengtsson, Ezawa, Franzosi, Gambini, JoséA. Zapata, Loll, Loll, Renteln, Renteln, Rovelli, Rovelli, Waelbroeck, Waelbroeck, Waelbroeck, Witten, Zapata   +26 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Categorical generalization of BF theory coupled to gravity

Journal of High Energy Physics
We present a thorough introduction to the tools of category theory required for formulating gauge theories based on 2-connections. We provide a detailed construction of the categorical generalization of BF theory, dubbed BFCG, also known as 2BF.
A. D. López-Hernández, Graciela Reyes-Ahumada, Javier Chagoya   +2 more
doaj   +1 more source

The Space of Connections as the Arena for (Quantum) Gravity

Symmetry, Integrability and Geometry: Methods and Applications, 2011
We review some properties of the space of connections as the natural arena for canonical (quantum) gravity, and compare to the case of the superspace of 3-metrics.
Steffen Gielen
doaj   +1 more source

Discrete SL2 Connections and Self-Adjoint Difference Operators on the Triangulated 2-manifold

, 2013
Discretization Program of the famous Completely Integrable Systems and associated Linear Operators was developed in 1990s. In particular, specific properties of the second order difference operators on the triangulated manifolds and equilateral triangle ...
Grinevich, P. G., Novikov, S. P.
core   +1 more source

M(atrix) Theory: Matrix Quantum Mechanics as a Fundamental Theory [PDF]

, 2001
A self-contained review is given of the matrix model of M-theory. The introductory part of the review is intended to be accessible to the general reader.
Abbott, L. F., Abbott, L. F., Aharony, O., Aharony, O., Aharony, O., Aharony, O., Alekseev, A. Y., Aoki, H., Aoki, H., Aspinwall, P. S., Awata, H., Baake, M., Bachas, C., Balasubramanian, V., Balasubramanian, V., Banks, T., Banks, T., Banks, T., Banks, T., Banks, T., Banks, T., Banks, T., Banks, T., Barrio, M., Baulieu, L., Becker, K., Becker, K., Becker, K., Becker, K., Berenstein, D., Berglund, P., Bergshoeff, E., Berkooz, M., Berkooz, M., Bilal, A., Billó, M., Billó, M., Billó, M., Bonelli, G., Bonelli, G., Bonelli, G., Bonora, L., Bordemann, M., Branco, J., Brandhuber, A., Brax, P., Brax, P., Brunner, I., Castelino, J., Chepelev, I., Chepelev, I., Chepelev, I., Chepelev, I., Claudson, M., Collins, P. A., Connes, A., Cornalba, L., Cremmer, E., Dabholkar, A., Dai, J., Danielsson, U. H., Dasgupta, A., de Alwis, S. P., de Boer, J., de Roo, M., de Wit, B., de Wit, B., de Wit, B., de Wit, B., de Wit, B., Dhar, A., Dhar, A., Diaconescu, D., Dijkgraaf, R., Dijkgraaf, R., Dine, M., Dine, M., Dine, M., Dine, M., Dorey, N., Douglas, M. R., Douglas, M. R., Douglas, M. R., Douglas, M. R., Douglas, M. R., Douglas, M. R., Douglas, M. R., Duff, M. J., Echols, R., Elitzur, S., Ezawa, K., Fabbrichesi, M., Fairlie, D. B., Fairlie, D. B., Fatollahi, A. H., Fayyazuddin, A., Fischler, W., Floratos, E. G., Floratos, E. G., Floratos, E. G., Flume, R., Fradkin, E. S., Fröhlich, J., Fujikawa, K., Fujikawa, K., Fukuma, M., Gaberdiel, M. R., Gaberdiel, M. R., Ganor, O. J., Ganor, O. J., Giddings, S. B., Giveon, A., Gopakumar, R., Green, M. B., Green, M. B., Green, M. B., Grignani, G., Grignani, G., Grosse, H., Gubser, S. S., Halpern, M. B., Hanany, A., Hanany, A., Hari Dass, N. D., Harmark, T., Harvey, J. A., Hata, H., Hellerman, S., Helling, R., Hirano, S., Ho, P., Hořava, P., Hořava, P., Hull, C. M., Hyun, S., Hyun, S., Hyun, S., Hyun, S., Hyun, S., Hyun, S., Hyun, S., Imamura, Y., Ishibashi, N., Itoyama, H., Itoyama, H., Itzhaki, N., Jevicki, A., Kabat, D., Kabat, D., Kabat, D., Kabat, D., Kac, V. G., Kachru, S., Kachru, S., Kazama, Y., Keski-Vakkuri, E., Keski-Vakkuri, E., Keski-Vakkuri, E., Keski-Vakkuri, E., Kitsunezaki, N., Klebanov, I. R., Kogut, J., Konechny, A., Kostov, I. K., Kraus, P., Krauth, W., Krogh, M., Krogh, M., Li, M., Lifschytz, G., Lifschytz, G., Lifschytz, G., Lifschytz, G., Lifschytz, G., Losev, A., Lowe, D. A., Lowe, D. A., Lowe, D. A., Maldacena, J. M., Maldacena, J. M., Maldacena, J. M., Martinec, E., Massar, M., McArthur, N. I., McCarthy, J. G., McGreevy, J., Mohaupt, T., Moore, G., Morales, J. F., Morales, J. F., Moyal, J., Myers, R. C., Nair, V. P., Nambu, Y., Nicolai, H., Obers, N., Ohta, N., Okawa, Y., Okawa, Y., Okawa, Y., Paban, S., Paban, S., Paban, S., Pauli, H. C., Periwal, V., Periwal, V., Pierre, J. M., Pierre, J. M., Plefka, J., Plefka, J. C., Plefka, J. C., Polchinski, J., Polchinski, J., Polchinski, J., Porrati, M., Randall, L., Refolli, A., Rey, S., Rozali, M., Schild, A., Schwarz, J. H., Seiberg, N., Seiberg, N., Seiberg, N., Seiberg, N., Sekino, Y., Sen, A., Sen, A., Serone, M., Sethi, S., Sethi, S., Sethi, S., Sethi, S., Simon, B., Smolin, L., Staudacher, M., Strominger, A., Sugino, F., Tada, T., Tafjord, O., Taylor, W., Taylor, W., Taylor, W., Taylor, W., Taylor, W., Taylor, W., Taylor, W., Tokura, H., Townsend, P. K., Townsend, P. K., Van Raamsdonk, M., Washington Taylor, Weinberg, S., Witten, E., Witten, E., Witten, E., Witten, E., Witten, E., Wynter, T., Wynter, T., Wynter, T., Yi, P., Yoneya, T., Yoneya, T., Zwiebach, B.   +264 more
core   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

General theoretical problems of constitutional legal relations

Ученые записки Казанского университета: Серия Гуманитарные науки
The enduring problems of a correlation between the general theory of law and various specific branches of legal science have recently received much attention.
A. T. Ragimov, M. M. Kurmanov
doaj   +1 more source

Studying emotion theories through connectivity analysis: Evidence from generalized psychophysiological interactions and graph theory [PDF]

NeuroImage, 2018
Psychological construction models of emotion state that emotions are variable concepts constructed by fundamental psychological processes, whereas according to basic emotion theory, emotions cannot be divided into more fundamental units and each basic emotion is represented by a unique and innate neural circuitry. In a previous study, we found evidence
Huang, Yun-An, Jastorff, Jan, Van den Stock, Jan, Van de Vliet, Laura, Dupont, Patrick, Vandenbulcke, Mathieu   +5 more
openaire   +3 more sources

Phase Transitions in Nonlinear Filtering

, 2014
It has been established under very general conditions that the ergodic properties of Markov processes are inherited by their conditional distributions given partial information.
Rebeschini, Patrick, van Handel, Ramon
core   +1 more source