objective of the present study was to determine calving parameters in eighteen large dairy herds of holstein friesian in tabriz. data analysis showed that the mean gestations length were 276.69 ± 6.29, 279.54 ± 8.55 and 271.38 ± 7.34 days in multipara cows and twining pregnancy respectively. percent of premature birth were 24.14% in twining (28 cases out of in 116 births), 9.61% in heifers (114...

Edward Wing Twining (Fig 1) generally is regarded as the “father” of British neuroradiology. Born on March 18th 1887, he came from a line of doctors, his grandfather and father being in family practice at Salcombe, Devon, in the south of England. He was educated at Epsom College and University College Hospital where he qualified in medicine in 1913. As a student dresser (medical student on a su...

Successful climbing by vines not only prevents shading by neighbouring vegetation, but also may place the vines beyond ground herbivores. Here we tested the hypothesis that herbivory might enhance climbing in a vine species, and that such induced climbing should be greater in the shade. We assessed field herbivory in climbing and prostrate ramets of the twining vine Convolvulus arvensis. We eva...

This paper describes the evaluation of the stability of amylose-polymer inclusion complexes under solution state in dimethyl sulfoxide (DMSO) depending on guest polymers. The three complexes were prepared by the vine-twining polymerization method using polytetrahydrofuran (PTHF), poly(ε-caprolactone) (PCL), and poly(l-lactide) (PLLA) as guest polymers. The stability investigation was conducted ...

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...

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...