The eigenvalues of Σ∗ are the variances of the (uncorrelated) principal components of the hypothesis response variables.
However, a reliance on fortuity at the molecular level is a troubling component of this hypothesis, and the hypothesis in general is inconsistent with the observation that apomixis has failed to arise spontaneously (even once) among many tens of thousands of intra and inter-specific hybrids and amphiploids that have been produced artificially during the past 100 years.
As reviewed in this section, the challenge hypothesis provides a practical framework to contextualize male male competition and investment toward mating effort; the other integral component of this hypothesis addresses when males shift from mating effort to an investing parent.
Lack of visual input of the moving part is a critical component of the incongruence hypothesis [ 132].
We note that the activity of the mitochondrial folate transporter (MFT) is a key component of the latter hypothesis.
Bacterial migration to extraintestinal sites has been attributed as the central component of the gut hypothesis of sepsis.
As stated, the analyses have been based on cross-sectional survey data which do not, therefore, allow any measure of impact, or otherwise, on individuals' subsequent mortality (an important component of the original hypothesis).
However, the analyses have been based on cross-sectional survey data which do not, therefore, allow any measure of impact or otherwise, on individuals' subsequent mortality (an important component of the original hypothesis).
Such ribosomal heterogeneity was proposed to modulate both quantitatively and qualitatively the translational readout from as far back as the early 1970s [ 40], and is now considered an important component of the filter hypothesis [ 33, 34].
Furthermore, a novel component of this hypothesis is that, by removing mediators from the plasma in the setting of systemic inflammation, one can restore the concentration gradient from plasma to infected tissues [ 12].
