Results 131 to 140 of about 63,806 (262)

Little String Theory and Heterotic/Type II Duality

, 2003
Little String Theory (LST) is a still somewhat mysterious theory that describes the dynamics near a certain class of time-like singularities in string theory.
Abe, Abe, Abe, Aharony, Aharony, Aharony, Aharony, Aharony, Alexandrov, Antoniadis, Antoniadis, Bachas, Balasubramanian, Balasubramanian, Banin, Bartomeu Fiol, Berkovits, Berkovits, Bershadsky, Bischoff, Buchbinder, Buchbinder, Callan, Cheung, Corley, Corley, Dabholkar, David A Sahakyan, David Kutasov, de Wit, Di Francesco, Dijkgraaf, Dine, Dorn, Douglas, Elitzur, Ellis, Fateev, Fateev, Gava, Giveon, Giveon, Giveon, Giveon, Giveon, Gluck, Gluck, Gonzalez-Rey, Gopakumar, Gopakumar, Gubser, Harvey, Henningson, Hori, Hori, Hull, Junemann, Kiritsis, Kiritsis, Klebanov, Klebanov, Kounnas, Kutasov, Kutasov, Kutasov, Lechtenfeld, Lerche, Lindstrom, Lowe, Maldacena, Maldacena, Maldacena, Maldacena, Marcus, Martinec, McGreevy, McGreevy, Nappi, Ofer Aharony, Ooguri, Ooguri, Ooguri, Parnachev, Polchinski, Qiu, Sen, Stieberger, Strominger, Takayanagi, Teschner, Teschner, Tong, Vafa, Witten, Witten, Witten, Zamolodchikov, Zamolodchikov   +97 more
core   +4 more sources

Punching shear of unbonded post‐tensioned steel fiber reinforced concrete slabs: The fiber contribution

Structural Concrete, EarlyView.
Abstract Steel fiber reinforced concrete (SFRC) enhances the flexural capacity of flat slabs and, due to its effectiveness in statically redundant bi‐dimensional elements, represents a viable alternative to conventional reinforcement. Although numerous studies have investigated the flexural behavior of SFRC slabs with and without bonded reinforcement ...
Chiara Gaddi, Matteo Colombo, Marco di Prisco   +2 more
wiley   +1 more source

Large N instantons from topological strings

SciPost Physics
The $1/N$ expansion of matrix models is asymptotic, and it requires non-perturbative corrections due to large $N$ instantons. Explicit expressions for large $N$ instanton amplitudes are known in the case of Hermitian matrix models with one cut, but not ...
Marcos Mariño, Ramon Miravitllas
doaj   +1 more source

TOPOLOGICAL SPIN-STATISTICS THEOREMS FOR STRINGS

Modern Physics Letters A, 1992
Recently, a topological proof of the spin-statistics theorem has been proposed for a system of point particles. It does not require relativity or field theory, but assumes the existence of antiparticles. We extend this proof to a system of string loops in three space dimensions and show that by assuming the existence of antistring loops, one can prove
Balachandran, A. P., McGlinn, W. D., O'Raifeartaigh, L., Sen, S., Sorkin, R. D., Srivastava, A. M.   +5 more
openaire   +2 more sources

Comparative Analysis of Heat Exposure‐Induced Molecular Changes in Two Turtle Species with Contrasting Thermal Adaptations

Integrative Zoology, EarlyView.
Protein processing in the endoplasmic reticulum is highlighted in response to heat stress in Platysternon megacephalum. Under heat stress, the up‐regulation of genes such as CHOP in protein processing in the endoplasmic reticulum pathway, along with the suppression of energy and lipid metabolism and the up‐regulation of JARID2 expression, leads to ...
Jian Hong, Yangchun Gao, Jiaxuan Li, Yan Ge, Yufeng Wei, Youqiang Yin, Qianru Liang, Shiping Gong   +7 more
wiley   +1 more source

Strings, Textures, Inflation and Spectrum Bending

, 1992
We discuss relationship between inflation and various models of production of density inhomogeneities due to strings, global monopoles, textures and other topological and non-topological defects. Neither of these models leads to a consistent cosmological
Andrei Linde, Bardeen, Barriol, Davis, Davis, Davis, Dolan, Georgi, Guth, Hawking, Hodges, Hodges, Hodges, Holman, Hooft, Hooft, Kallosh, Kamionkowski, Kirzhnits, Kirzhnits, Kirzhnits, Kofman, Kofman, Kofman, Kofman, Krauss, Kuzmin, La, Lee, Lee, Linde, Linde, Linde, Linde, Linde, Lyth, Mukhanov, Salam, Salopek, Shafi, Shafi, Spergel, Starobinsky, Turok, Turok, Turok, Tyutin, Vilenkin, Vilenkin, Vishniac, Weinberg, Weinberg, Zeldovich   +52 more
core   +1 more source

Elevated CO2 and Temperature Alter Grass Pollen's Ability to Modify Transcriptome and Function of the Nasal Epithelium

Allergy, EarlyView.
We exposed human nasal epithelial tissues to pollen from grasses grown under different climate treatments (temperature and CO2). Pollen weakened epithelial tight junctions and altered cytokine‐related gene expression, with similar protein‐level effects.
Tarleena Tossavainen, Tanja Turunen, Maria‐Viola Martikainen, Miisa Kankaanpää, Marjo Malinen, Marjut Roponen   +5 more
wiley   +1 more source

String topology: background and present state [PDF]

Current Developments in Mathematics, 2005
The data of a "2D field theory with a closed string compactification" is an equivariant chain level action of a cell decomposition of the union of all moduli spaces of punctured Riemann surfaces with each component compactified as a pseudomanifold with boundary. The axioms on the data are contained in the following assumptions.
openaire   +3 more sources

SOX30 Governs Synaptonemal Complex Assembly and Homologous Recombination in Male Meiosis

Cell Proliferation, EarlyView.
The transcription factor SOX30 directly binds promoter regions of SYCE1 and SYCE2 to mediate their transcriptional activation, thereby enabling proper assembly of central elements within the synaptonemal complex. Structural destabilisation of the synaptonemal complex in Sox30 KK spermatocytes triggers synaptic discontinuity, impairs homologous ...
Kangle Liu, Wenfeng Zhang, Xiao Jiang, Jianping Chen, Lei Zhu, Zhonghao Zhang, Jing Gu, Lulu Guo, Lin Ao, Qing Chen, Lei Sun, Yuhan Hu, Xin Wang, Yaxin Liu, Jia Cao, Fei Han, Jinyi Liu   +16 more
wiley   +1 more source

RAB4A acts as a negative feedback regulator of extracellular vesicle secretion during TGF‐β signaling

The FEBS Journal, EarlyView.
TGF‐β signaling regulates extracellular vesicle (EV) release in cancer cells by modulating the expression and activity of genes associated with EV biogenesis. The TGF‐β‐induced upregulation of RAB4A expression facilitates fast endosomal recycling, a process that limits the fusion of multivesicular bodies with the plasma membrane and EV secretion. Hence,
Dorival Mendes Rodrigues‐Junior, Maria Anastasia Doumani, Hao Fu, Jelle van den Bor, Olof Idevall‐Hagren, Aristidis Moustakas   +5 more
wiley   +1 more source