Results 41 to 50 of about 5,309,234 (282)

Order-of-magnitude physics of neutron stars

, 2015
We use basic physics and simple mathematics accessible to advanced undergraduate students to estimate the main properties of neutron stars. We set the stage and introduce relevant concepts by discussing the properties of "everyday" matter on Earth ...
Reisenegger, Andreas, Zepeda, Felipe S.
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Earthquake manifestation activity in the border territories of the south of the European part of Russia

Юг России: экология, развитие, 2020
Aim. Assessment of earthquake activity in the border areas of the south of the European part of Russia (excepting Crimea) over the past decade.Material and Methods.
V. V. Razumov, N. V. Razumova, A. D. Linkov, N. V. Kondratieva, N. O. Guseynova, M. I. Gadzhibekov   +5 more
doaj   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Magnitude of preterm birth and associated factors Among mothers who gave birth in Debre Berhan comprehensive specialized hospital

Frontiers in Global Women's Health
BackgroundPremature deliveries are a major public health issue, with high health, economic, and productivity costs associated with lengthy hospitalizations in neonatal critical care units.
Yosef Kibret, Abebe Minda Bunie, Sadat Mohammed, Tilahun Deresse Tamene, Tadesse Mamo Dejene   +4 more
doaj   +1 more source

Magnitude and Sign Correlations in Heartbeat Fluctuations

, 2001
We propose an approach for analyzing signals with long-range correlations by decomposing the signal increment series into magnitude and sign series and analyzing their scaling properties.
A. Babloyantz, A. Voss, Ary L. Goldberger, C.-K. Peng, C.-K. Peng, C.-K. Peng, Chung-K. Peng, G. Sugihara, H. Eugene Stanley, H. Takayasu, J. Kurths, J. Theiler, M. F. Shlesinger, M. Kobayashi, P. Ch. Ivanov, P. F. Panter, P. Maurer, Plamen Ch. Ivanov, R. M. Berne, Shlomo Havlin, Yosef Ashkenazy   +20 more
core   +1 more source

The Age of Ellipticals and the Color-Magnitude Relation [PDF]

, 2009
Using new narrowband color observations of early-type galaxies in clusters, we reconstruct the color-magnitude relation (CMR) with a higher degree of accuracy than previous work.
Atlee, Bahcall, Baldry, Balogh, Balogh, Bernardi, Bower, Caldwell, Cid Fernandes, Clemens, Cordier, De Angeli, Franzetti, González, Graves, Graves, Harris, James Schombert, Karl Rakos, Kauffmann, Kaviraj, Kelson, Kelson, Kodama, Larson, Li, Lisker, MacArthur, Marín-Franch, Matteucci, Matteucci, Mei, Odell, Percival, Rakos, Rakos, Rakos, Rakos, Rakos, Rakos, Schiavon, Schombert, Thomas, Trager, Worthey, Worthey, Wyder, Yi   +47 more
core   +1 more source

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

FEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson, Mackenzie K Herroon, Shane Mecca, Laimar C Garmo, Jacob Lindquist, Shrila Rajendran, Steve M. Patrick, Izabela Podgorski   +7 more
wiley   +1 more source

Magnitude and predictors of pre-diabetes among adults in health facilities of Gondar city, Ethiopia: a cross-sectional study

Frontiers in Public Health, 2023
IntroductionImpaired glucose tolerance currently affects 374 million (7.5%) people worldwide, and by 2030, this number is predicted to affect 454 million (8%). Urban inhabitants have an increased risk of developing pre-diabetes.
Tsegereda Abebe Andargie, Berhanu Mengistu, Lemlem Daniel Baffa, Kedir Abdela Gonete, Kedir Abdela Gonete, Aysheshim Kassahun Belew   +5 more
doaj   +1 more source

Absolute Magnitude Calibration for Red Clump Stars

, 2013
We combined the ($K_s$, $J-K_s$) data in Laney et al. (2012) with the $V$ apparent magnitudes and trigonometric parallaxes taken from the Hipparcos catalogue and used them to fit the $M_{K_s}$ absolute magnitude to a linear polynomial in terms of $V-K_s$
Bilir, S., Gokce, E. Yaz, Karaali, S.
core   +1 more source