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Different cell types—say, heart, liver, blood, and sperm cells—possess characteristics that help them carry out their unique jobs in the body. In general, those characteristics are hard-wired. Without...
Constraints on mechanisms of chondrule formation from chondrule precursors and chronology of transient heating events in the protoplanetary disk
chondrules refractory inclusions chondrule precursors transient heating
2017/4/10
The mineralogy, petrography, and oxygen-isotope compositions of porphyritic chondrules—dominant chondrule type
in most chondrite groups—suggest formation by incomplete melting of isotopically diverse...
Metabolic precursors and effects of obesity in children: a decade of progress, 1990–1999
white children obesity body composition
2016/6/12
Current data suggest that 20% of US children
are overweight. An analysis of secular trends suggested a clear
upward trend in body weight in children of 0.2 kg/y between
1973 and 1994. In addition, ...
Human metabolism of mammalian lignan precursors in raw and processed flaxseed
Flaxseed lignans enterodiol
2016/5/30
The mammalian lignans enterolactone and enterodiol
are produced in the colon by the action of bacteria on the
plant precursor secoisolariciresinol diglycoside, which is found
in high concentrations...
Earthquake prediction based on precursors can aim to provide fully quantified, time-varying, synoptic forecasts, which do not depart from physical and geological principles, and are amenable to formal...
An integrated study of physical precursors of failure in relation to earthquake prediction, using large scale rock blocks
precursors simulation failure complex parameter prediction earthquake
2015/9/30
This paper is multi-analysis approach to rock failure using metric size rock samples. The use of large-scale models permits simulation of the seismic process (including internal rupture on several sca...
A critical review of Electric Earthquake Precursors
Earthquake precursor earthquake prediction electric earthquake precursor (EEP) seismic electric signal (SES)
2015/9/28
The generation of transient electric potential prior to rupture has been demonstrated in a number of laboratory experiments involving both dry and wet rock specimens. Several different electrification...
Could ionospheric variations be precursors of a seismic event? A short discussion
Ionosphere seismic precursors
2015/9/28
A short review of published papers on the perturbations in the ionosphere due to seismogenic effects is reported. The method to correlate different classes of phenomena as ionospheric variations and s...
Disturbances in LF radio-signals as seismic precursors
radio signals seismicity precursors
2015/9/28
Low Frequency (LF) radio signals lie in the band 30-300 kHz. Monitoring equipment able to measure the electric strength of such signals, at field sites with very low noise levels, were designed and as...
Ionospheric precursors to scintillation activity
Scintillations Forecasts Dynamics Inverse methods Algorithms and implementation
2015/8/17
Ionospheric scintillation is the rapid fluctuation of both phase and amplitude of trans-ionospheric radio waves due to small scale electron density irregularities in the ionosphere. Prediction of the ...
Precursors for Waves in Random Media
Parabolic approximation random media precursor O’Doherty-Anstey approximation
2015/7/14
We consider scattering of a pulse propagating through a three-dimensional random media and study the shape of the pulse in the parabolic approximation. We show that, similarly to the one-dimensional O...
Dynamic model evaluation for secondary inorganic aerosol and its precursors over Europe between 1990 and 2009
Ozone simulation dynamic model chemical transport model analysis model the nonlinear response secondary inorganic aerosols regional atmospheric climate models
2015/5/18
In this study we present a dynamic model evaluation of chemistry transport model LOTOS-EUROS (LOng Term Ozone Simulation – EURopean Operational Smog) to analyse the ability of the model to reproduce o...
Striking a Balance: individual competence and systems capability as precursors of quality care
individual competence systems capability
2015/3/9
Strategies to address identified issues swing between two
poles. The first emphasises the competence of individual
clinical performance. The second, taking a system’s
perspective, highlights the to...
Runx1 Regulates c-Myc Expression And The Expansion Of Hematopoietic Precursors In A C-terminally Dependent Manner
Biological sciences Health and environmental sciences C-myc Hematopoiesis Runx1 Tat peptides
2014/12/10
Runx1 regulates the expression of several important target genes and plays critical roles in the process of hematopoiesis. Runx1 by itself is a poor regulator of transcription and instead nucleates tr...
Conversion of Isobutane in Presence of Carbon Dioxide over Molybdenum Oxide Catalysts Obtained from Heteropolymolybdate Precursors（图）
isobutane isobutene heteropoly compound mixed oxide carbon dioxide
2013/10/4
Molybdenum based oxide catalysts Mo-H, Mo-Fe, Mo-Ce, and Mo-Sn were prepared by calcining H3PMo12O40, Fe1.5PMo12O40, Ce1.5PMo12O40, and Sn1.5PMo12O40 heteropolyanion precursors at 700 °C, respectively...