We consider Thurston maps, i.e., branched covering maps f : S → S that are postcritically finite. It is shown that a Thurston map f is expanding (in a suitable sense) if and only if some iterate F = f is semi-conjugate to z : S → S, where d = deg F . More precisely, for such an F we construct a Peano curve γ : S → S (onto), such that F ◦ γ(z) = γ(z) (for all z ∈ S).

Predictive modeling of habitat distribution of range plant species and identification of their potential habitats play important roles in the restoration of disturbed rangelands. This study aimed to predict the geographical distribution of Artemisia sieberi and find the influential variables in the distribution of A. sieberi in the desert rangelands of central Iran. Maps of environmental variab...

Abstract We study hyperelliptic curves $$y^2 = f(x)$$ y 2 = f ( x ) over local fields of odd residue characteristic. introduce the notion a “cluster picture” asso...

The multifunctional protein CAD initiates de novo pyrimidine biosynthesis in mammalian cells. CAD is activated by MAP kinase (Erk1/2) just prior to the S phase of the cell cycle, when the demand for pyrimidine nucleotides is greatest, and down-regulated as the cells emerge from S phase by protein kinase A (PKA) phosphorylation. MAP kinase phosphorylates Thr456, while PKA phosphorylates Ser1406 ...

Sequence-based protein tertiary structure prediction is of fundamental importance because the function a ultimately depends on its 3D structure. An accurate residue-residue contact map one essential elements for current ab initio protocols prediction. Recently, with combination deep learning and direct coupling techniques, performance residue has achieved significant progress. However, consider...

The causative mechanisms of hypertension were investigated by studying the renal function (pressure-natriuresis) curve in patients with primary aldosteronism (n = 6) and renovascular hypertension (n = 6). Before and after radical operation (removal of adenoma in primary aldosteronism and percutaneous transluminal angioplasty in renovascular hypertension), dietary NaCl intake was altered from 10...

Granulocyte colony-stimulating factor (G-CSF) can elicit responses that include proliferation, granulocytic differentiation, and activation of cellular functions in target cells. The biochemical pathways responsible for transduction of these signals from the G-CSF receptor (G-CSFR) have not been defined. In this report, we show that, in murine (NFS-60) and human (OCI-AML 1) myeloid leukemia cel...

The Prym map of type (g, n, r) associates to every cyclic covering of degree n of a curve of genus g, ramified at a reduced divisor of degree r, the corresponding Prym variety. We show that the corresponding map of moduli spaces is generically finite in most cases. From this we deduce the dimension of the image of the Prym map.