Recent calls for reform in biology education emphasize the need for (1) improved integration of concepts and facts with the process of scientific inquiry, (2) active, rather than passive learning experiences, and (3) authentic exposure to biology, including exposure to the variability and unpredictability inherent to natural systems (Brewer and Smith, 2011).
With the inclusion of waterman-collected samples from 2001 and 2002, our findings remained negative, with the added assurance that water sample data reflected authentic "exposure" (time-and place-matched sampling).
Several LDL nitration sites were identified by mass spectrometry after authentic peroxynitrite exposure [ 67, 68] and also by upregulation of Nox expression by bovine aortic endothelial cells exposed to oscillatory and pulsatile shear stress [ 67].
Being young Southerners educated in the North, we felt Frost represented a kind of old-fashioned but indisputably authentic Americanism, vital exposure we'd grown up exiled from because of race troubles, and because of absurd preoccupations about the South itself, practiced by people who should know better.
While elucidating the genesis and molecular underpinnings will be an important next step, an even more important step will be a rigorous application of environmental toxicology and epidemiology to determine whether the elevated brain Aβ caused in mice by this air pollution model corresponds to any situation of authentic human inhalation exposure that is linked to an increased risk for AD.
Brahms's familiarity with piano four-hands music and his exposure to authentic Hungarian dances led him to try his hand at composing Hungarian-style pieces, for which he knew there would be a ready-made audience.
Therefore, students' exposure to authentic communication in English is limited, especially outside of school and particularly concerning spoken and written production ([reference deleted to maintain the integrity of the review process]; for a critical discussion of authenticity see Gilmore 2007).
Indeed, exposure to authentic ONOO− was able to fully reproduce the effect of cytokine/LPS-mediated iNOS induction on glucose transport, insulin signaling to PI3K, IRS-1 tyrosine nitration and phosphorylation.
Furthermore this in vivo finding was recapitulated in L6 myocytes where we show that chronic cytokine/LPS treatment or acute exposure to authentic ONOO− increased tyrosine nitration of IRS-1, resulting in decreased IRS-1 tyrosine phosphorylation and impaired activation of PI3K, leading to defective insulin stimulation of glucose transport.
Importantly, both 1400 W and EGCG restored insulin-stimulated PI3K activity in cytokine/LPS treated cells, while exposure to authentic ONOO− mimicked the cytokine/LPS treatment and blunted the ability of insulin to induce IRS-1 associated PI3K activity (Figure 5C).
We have previously reported that after 48 hours of exposure to authentic microgravity, human lymphocytes show increased mRNA levels of μ-calpain [ 6], a Ca2+-dependent intracellular cysteine protease that is implicated in different physiological functions, including cell growth and apoptosis [ 41].
