Strain-controlled fatigue of Mg–1Mn-0.5Nd (wt.%) alloy were studied by experiment and simulation. The microstructure was made up a dispersion strongly texture grains (13%) embedded in matrix with random texture. cyclic stress-strain curves showed limited tension-compression anisotropy because the Cyclic hardening under compression softening tension occurred due to presence twinning. Moreover, t...

We report the twining handedness of Codonopsis pilosula, which has either a 9 leftor right-handed helix among different plants, among different tillers within a 10 single plant, and among different branches within a single tiller. The handedness was 11 randomly distributed among different plants, among the tillers within the same plants, 12 but not among the branches within the same tillers. Mo...

The objective of this study was to evaluate myostatin (MSTN) gene by polymerase chain reaction -restriction fragment length polymorphism (PCR-RFLP) and sequencing methods in four goat breeds including Mohabadi, Markhoz, Lori and Bital breeds. A573 bp fragment of MSTN gene was amplified by PCR. A new 5 bp deletion in 5`UTR (206TTTTA) of the MSTN gene was directly identified by sequencing. The AA...

This paper explores the rationales that people with specific educational roles thought should underpin educational ICT use. It provides a brief overview of the dICTatEd project followed by a summary of the analysis of over 2,000 responses to the project’s web-based questionnaire. Respondents were asked to rate and rank the relative importance they ascribed to each of 19 rationales. Analysis ind...

Twining stems of plants are very common in extant tropical and subtropical forests, and the climbing growth habit of plants may be an evolutionary innovation and ecological adaptation to either closed, shady or open, edge environments. However, the origin of handedness in climbing plants remains unclear. Here we report a Miocene (ca. 16 million years ago) macrofossil from the Shanwang Formation...

The appearances in a bronchogram of the more proximal branches of the bronchial tree are well known and have been fully described (Huizinga and Smelt, 1949; Twining and Kerley, 1951; Fischer, 1953; Brock, 1954; Ritvo, 1956). This is not so in regard to the more distal and final branches, and there is, moreover, some confusion as to which structures are outlined by the contrast medium at the per...

Motivated by observations about twining plants we study the static equilibrium solutions of untwisted, elastic rods in a helical shape. This work is an extension and specialization of [2]. We extend it by considering rods with intrinsic curvature and we specialize it by only considering helical solutions. Biology motivates these considerations.