background: methionine has been suggested as the firstlimitingamino acid for milk production in ruminants. it is importanthow to increase milk protein yield and milk fat in dairy ruminants.objectives: this study was set to investigate the effect of rumenprotected methionine (rpmet) on milk composition of lactatingcashmere rayeni goats. methods: 40 healthy singletoncashmere rayeni goats about 3 ...

PG 1159-035 is the prototype of DOV hot pre-white dwarf pulsators. It was observed during Kepler satellite K2 mission for 69 days in 59 s cadence mode and by TESS 25 20 mode. We present a detailed asteroseismic analysis those data. identify total 107 frequencies representing 32 l=1 modes, 27 12 l=2 8 combination frequencies. The modes with very high k values represent new detections. multiplet ...

for vectors x, y ∈ rn, it is said that x is left matrix majorizedby y if for some row stochastic matrix r; x = ry. the relationx ∼` y, is defined as follows: x ∼` y if and only if x is leftmatrix majorized by y and y is left matrix majorized by x. alinear operator t : rp → rn is said to be a linear preserver ofa given relation ≺ if x ≺ y on rp implies that t x ≺ ty onrn. the linear preservers o...

We present evidence that PG1159 stars could harbour He–rich envelopes substantially thinner than those predicted by current evolutionary models with current estimates of mass loss, which may be attributable to an extensive mass–loss episode during the born–again AGB phase. Specifically, we show that the models with thin He–rich envelopes predict remarkably large magnitudes of the rates of perio...