Results 81 to 90 of about 154,633,936 (258)

The lambda-phase transitions in NH4Cl

, 1995
We show here the correlations between the volume changes and the vibrational frequencies of the disorder-induced Raman modes of NH4Cl near the lambda-phase transitions of first order (P=0), tricritical (P similar or equal to 1.6 kbar) and second order (P
Sherman, WF, Yurtseven, Hasan Hamit, Yurtseven, H., Sherman, W. F.   +3 more
core   +1 more source

RNA‐related functions of BRCA2 in transcription, replication, and genome stability

FEBS Letters, EarlyView.
Beyond its role in homologous recombination, BRCA2 regulates R‐loop homeostasis, DNA–RNA hybrid resolution, RNA polymerase II dynamics, and transcriptional activation. Disruption of any of these functions can contribute to genome instability, inflammatory signaling, and tumorigenesis. BRCA2 is a central tumor suppressor protein best known for its roles
Lucia Alvaro‐Aranda, Sreerama Chaitanya Sridhara, Aura Carreira   +2 more
wiley   +1 more source

Phase transitions in project scheduling. [PDF]

The analysis of the complexity of combinatorial optimization problems has led to the distinction between problems which are solvable in a polynomially bounded amount of time (classified in P) and problems which are not (classified in NP).
De Reyck, B, Herroelen, Willy
core  

Cosmology and the Early Universe [PDF]

, 2019
This Astro-2020 White Paper deals with what we might learn from future gravitational wave observations about the early universe phase transitions and their energy scales, primordial black holes, Hubble parameter, dark matter and dark energy, modified ...
Figueroa, Daniel, Regimbau, T., Dirian, Y., Caprini, C., Figueroa, D., Foffa, S., Cusin, Giulia, Regimbau, Tania, Tamanini, N., Cusin, G., Fan, Xilong, Harms, Jan, Matas, A., Foffa, Stefano, Sakellariadou, Mairi, Theoretical Physics, Mandic, Vuk, Sathyaprakash, B.S., Fan, X., Sub String Theory Cosmology and ElemPart, Hall, Evan, Maggiore, M., Tamanini, Nicola, Caprini, Chiara, Sakellariadou, M., Sathyaprakash, B. S., Dirian, Yves, Thrane, Eric, Bertacca, D., Belgacem, E., Bertacca, Daniele, Sathyaprakash, B., Maggiore, Michele, Hall, E., Thrane, E., Harms, J., Belgacem, Enis, Mandic, V., Matas, Andrew   +38 more
core  

Emergence and Reduction Combined in Phase Transitions [PDF]

, 2011
In another paper (Butterfield 2011), one of us argued that emergence and reduction are compatible, and presented four examples illustrating both. The main purpose of this paper is to develop this position for the example of phase transitions.
Butterfield, Jeremy, Jeremy Butterfield, Bouatta, Nazim, Nazim Bouatta   +3 more
core   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Phase Transitions in the Early Universe [PDF]

From the moment after the Big Bang to the present day, the universe has continually cooled and expanded. The Standard Model of particle physics predicts that as the temperature dropped, the universe underwent a series of phase transitions including the ...
Hall, Eleanor Henderson
core  

Turn and Face the Strange... Ch-ch-changes: Philosophical Questions Raised by Phase Transitions [PDF]

, 2011
Phase transitions are an important instance of putatively emergent behavior. Unlike many things claimed emergent by philosophers (e.g., tables and chairs), the alleged emergence of phase transitions stems from both philosophical and scientific arguments.
Menon, Tarun, Callender, Craig
core  

Progress report for a research program in physics of the early universe [PDF]

, 1990
Since June 1989 most of my research has been devoted to early Universe cosmology. The four focal points have been: Galaxy and large-scale structure formation with cosmic strings.
Brandenberger, R.H.
core   +1 more source

Gauge fields in the presence of the electroweak bubble wall

Journal of High Energy Physics
The gauge field theory of the standard electroweak model in the presence of the electroweak bubble wall is investigated with a view to its applications to microscopic phenomena, which are believed to have occurred during the phase transition in the early
Takahiro Kubota
doaj   +1 more source