Results 41 to 50 of about 5,297,615 (283)

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

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

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

Magnitude bias of microlensed sources towards the Large Magellanic Cloud [PDF]

, 1999
There are lines of evidence suggesting that some of the observed microlensing events in the direction of the Large Magellanic Cloud (LMC) are caused by ordinary star lenses as opposed to dark Machos in the Galactic halo.
David S. Graff, HongSheng Zhao, Palanque-Delabrouille N., Puragra Guhathakurta, Renault C., Udalski A.   +5 more
core   +5 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

The seismicity of the Carpathians in 2022

Геофизический журнал
According to the results of observations at the seismic stations of the Carpathian region of Ukraine in 2022, the main parameters of 50 earthquakes in the range of energy classes KR=5.7÷13.7 were obtained.
S.T. Verbytskyi, R.S. Pronyshyn, V.I. Prokopyshyn, A.T. Stetskiv, I.M. Nischimenko, I.M. Keleman, G.A. Gerasymenyuk   +6 more
doaj   +1 more source