Results 61 to 70 of about 653,533 (298)

Geometrically induced magnetic catalysis and critical dimensions

, 2015
We discuss the combined effect of magnetic fields and geometry in interacting fermionic systems. At leading order in the heat-kernel expansion, the infrared singularity (that in flat space leads to the magnetic catalysis) is regulated by the chiral gap ...
Flachi, Antonino, Fukushima, Kenji, Vitagliano, Vincenzo   +2 more
core   +1 more source

Search for Nucleon Decays induced by GUT Magnetic Monopoles with the MACRO Experiment [PDF]

, 2002
The interaction of a Grand Unification Magnetic Monopole with a nucleon can lead to a barion-number violating process in which the nucleon decays into a lepton and one or more mesons (catalysis of nucleon decay).
Ambrosio, M., Antolini, R., Auriemma, G., Bakari, D., Baldini, A., Barbarino, G. C., Barish, B. C., Battistoni, G., Becherini, Y., Bellotti, R., Bemporad, C., Bernardini, P., Bilokon, H., Bloise, C., Bower, C. R., Brigida, M., Bussino, S., Cafagna, F., Calicchio, M., Campana, D., Carboni, M., Caruso, R., Cecchini, S., Cei, F., Chiarella, V., Choudhary, B. C., Coutu, S., Cozzi, M., De Cataldo, G., De Marzo, C., De Mitri, I., De Vincenzi, M., Dekhissi, H., Derkaoui, J., Di Credico, A., Erriquez, O., Favuzzi, C., Forti, C., Fusco, P., Giacomelli, G., Giannini, G., Giglietto, N., Giorgini, M., Grassi, M., Grillo, A., Guarino, F., Gustavino, C., Habig, A., Hanson, K., Heinz, Richard Meade, Iarocci, E., Katsavounidis, E., Katsavounidis, I., Kearns, E., Kim, H., Kyriazopoulou, S., Lamanna, E., Lane, C., Levin, D. S., Lipari, P., Longley, N. P., Longo, Michael J., Loparco, F., Maaroufi, F., Mancarella, G., Mandrioli, G., Manzoor, S., Margiotta, A., Marini, A., Martello, D., Marzari-Chiesa, A., Mazziotta, M. N., Michael, D. G., Monacelli, P., Montaruli, T., Monteno, M., Mufson, S., Musser, J., Nicolò, D., Nolty, R., Orth, C., Osteria, G., Palamara, O., Patera, V., Patrizii, L., Pazzi, R., Peck, C. W., Perrone, L., Petrera, S., Pistilli, P., Popa, V., Rainò, A., Reynoldson, J., Ronga, F., Rrhioua, A., Satriano, C., Scapparone, E., Scholberg, K., Sciubba, A., Serra, P., Sioli, M., Sirri, G., Sitta, M., Spinelli, P., Spinetti, M., Spurio, M., Steinberg, R., Stone, James L., Sulak, Lawrence R., Surdo, A., Tarlè, G., Togo, V., Vakili, M., Walter, C. W., Webb, R.   +114 more
core   +6 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Magnetic Catalysis in AdS4

, 2012
We study the formation of fermion condensates in Anti de Sitter space. In particular, we describe a novel version of magnetic catalysis that arises for fermions in asymptotically AdS4 geometries which cap off in the infra-red with a hard wall.
Albash T, Berkooz M, Bolognesi S Laia J Tong D Wong K, David Tong, Evans N, Filev V G, Filev V G, Filev V G, Filev V G, Gripaios B, Gubankova E, Klebanov I R, Laia J N Tong D, Porrati M, Preis F, Rattazzi R, Semenoff G W, Stefano Bolognesi, Witten E, Witten E   +19 more
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

RNA catalysis

Current Opinion in Structural Biology, 1998
Our understanding of the relationship between the structure of RNA and its catalytic activity has advanced significantly in the past year. These advances include time-resolved crystallographic studies on the hammerhead ribozyme, as well as new structures of a group I intron, a lead(II)-cleavage ribozyme, a hepatitis delta virus ribozyme, and components
openaire   +4 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Application of Sonotriboluminescence to Determine Arene Molecules in Hydrocarbons

Molecules, 2023
The sonotriboluminescence of suspensions of terbium(III) and europium(III) sulfates in decane without and in the presence of benzene, toluene and p-xylene was studied.
Adis A. Tukhbatullin, Nadezhda A. Panova, Dim I. Galimov, Bulat M. Gareev, Alina A. Tukhbatullina, Kristina S. Vasilyuk, Glyus L. Sharipov   +6 more
doaj   +1 more source

Mirror symmetry breaking with limited enantioselective autocatalysis and temperature gradients: a stability survey

, 2012
We analyze limited enantioselective (LES) autocatalysis in a temperature gradient and with internal flow/recycling of hot and cold material. Microreversibility forbids broken mirror symmetry for LES in the presence of a temperature gradient alone.
Blanco, Celia, Crusats, Joaquim, El-Hachemi, Zoubir, Hochberg, David, Moyano, Albert, Ribó, Josep M.   +5 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