Results 81 to 90 of about 1,396,249 (309)

Quantum Minimal Length and Transplanckian Photons [PDF]

, 1999
In this paper we first give arguments supporting the idea that a B.T.Z black hole can face a transplankian problem even when its mass is small. K.M.M quantum theory is applied to the Hawking evaporation of the Schwarzchild and B.T.Z black holes.
A. Kempf, A. Kempf, A. Kempf, Arundhati Dasgupta, D. Binosi, D. Birmingham, G.W. Gibbons, H.W. Lee, J. Bekenstein, L. Susskind, L.D. Landau, M. Banados, M. Banados, M. Lubo, M. Lubo, P.K. Townsend, R. Brout, R. Brout, R. Emparan, R.B. Mann, S. Carlip, S. Carlip, S. Carlip, S. Carlip, S. Carlip, S. Hawking, T. Damour, T. Jacobson, W.G. Unruh, W.G. Unruh   +29 more
core   +2 more sources

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

FEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada, Mina Iwaki, Kyosuke Hagiri, Rei Izumi, Masahiko Harata, Chihiro Horigome   +5 more
wiley   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

FEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman, Katarzyna Stapor, Leszek Konieczny, Krzysztof Gądek, Piotr Nowakowski   +4 more
wiley   +1 more source

Structure stability in the simple element sodium under pressure

, 2009
The simple alkali metal Na, that crystallizes in a body-centred cubic structure at ambient pressure, exhibits a wealth of complex phases at extreme conditions as found by experimental studies.
Ashcroft N W, Degtyareva V F, Degtyareva V F, Degtyareva V F, Fournee V, Hanfland M, Harrison W A, Hume-Rothery W, Jones H, Maksimov E G, Mimasaka M, Mott N F, O Degtyareva, Pearson W B, Pfisterer H, Rodriguez-Prieto A, Syassen K, Syassen K, V F Degtyareva, Villers P, Wyckoff R, Xie Y, Zhou D W   +22 more
core   +1 more source

Matrix metalloproteinase‐9 regulates cell adhesion and membrane protrusive activity of ovarian cancer cells

FEBS Open Bio, EarlyView.
Matrix metalloproteinase‐9 (MMP9) drives ovarian cancer progression. Using MMP9‐null cells (M9‐KO) created from ovarian cancer cells, we found MMP9 loss did not block Epidermal Growth Factor (EGF)‐driven E‐cadherin dissolution or EMT but delayed and reduced EGF‐driven membrane protrusions. Transient MMP9 re‐expression drove membrane protrusion.
Claire Strauel, Sam Bennett, Natalie Ehlinger, Nelson Cook, Katelyn Marvin, Caleb L. Lines, Sam Reyes, Brooke Kirby, Shawn M. Ellerbroek   +8 more
wiley   +1 more source

Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum

FEBS Open Bio, EarlyView.
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik, Russell Pickford, Hannah C. Timmins, Olivier Piguet, Glenda M. Halliday, Matthew C. Kiernan, Woojin Scott Kim   +6 more
wiley   +1 more source

Tool Wear Effect on Cutting Forces: In Routing process of Aleppo Pine Wood [PDF]

, 2009
This paper uses the cutting forces in a routing process of Aleppo pine wood to estimate the tool wear effect. The aim is to obtain further information about the tool wear effect by monitoring the variation in the cutting forces.
AKNOUCHE, Hamid, BUTAUD, Jean-Claude, MARCHAL, Rémy, NOUVEAU, Corinne, OUTAHYON, Alex, ZERIZER, Abdellatif   +5 more
core   +5 more sources

The skills required for transition to university and study in biological sciences: A student perspective

FEBS Open Bio, EarlyView.
Bioscience students were asked for their opinions on the value and teaching of skills. 204 responded that teamwork, time management and study skills are necessary to reach University, that scientific writing, research, laboratory and presentation skills are taught effectively during their studies, while other skills are gained inherently through study ...
Janella Borrell, Susan Crennell
wiley   +1 more source

Study on the Evolution Characteristics of Two-Zone Failure Mode of the Overburden Strata under Shallow Buried Thick Seam Mining

Advances in Civil Engineering, 2019
There are risks of water burst and sand inrush in the working face of the Northwest Mining Area in China. Based on the 22407 working face of Halagou coal mine, the evolution characteristics and mechanism of a two-zone failure mode of the overburden ...
Daming Yang, Wenbing Guo, Yi Tan
doaj   +1 more source

Efficacy and Safety of the Safe Triangular Working Zone Approach in Percutaneous Vertebroplasty for Spinal Metastasis. [PDF]

Korean J Radiol, 2022
Yan BC, Fan YF, Tian QH, Wang T, Huang ZL, Song HM, Li Y, Jiao L, Wu CG.   +8 more
europepmc   +1 more source