Purpose. To evaluate heterosis in new F1 hybrids and to select the best ones with greatest dominance for "growing period length", "yield", "marketability" "mean marketable fruit weight" traits further use breeding heterosis. Object. Twenty-seven watermelon 22 parents. Methods. General scientific, measuring weighing, computational statistical. Results. their parents were screened following chara...

The coupling factor ATPase (F1) from photosynthetic membranes of the cyanobacterium Spirulina platensis was purified to homogeneity by a combination of ion-exchange chromatography and sucrose density gradient centrifugation. The ATPase activity of purified Spirulina F1 is latent but can be elicited by trypsin treatment, resulting in specific activities (CaATPase) of 27-37 mumol Pi min-1 mg prot...

We define and study the category Rep(Q, F1) of representations of a quiver in Vect(F1) the category of vector spaces ”over F1”. Rep(Q, F1) is an F1–linear category possessing kernels, co-kernels, and direct sums. Moreover, Rep(Q, F1) satisfies analogues of the Jordan-Hölder and Krull-Schmidt theorems. We are thus able to define the Hall algebra HQ of Rep(Q, F1), which behaves in some ways like ...

We follow the rules: D is a non empty set, f1, f2 are finite sequences of elements of D, and i, n, n1, n2, n3, n4, n5, n6 are natural numbers. We now state two propositions: (1) If n ¬ len f1, then (f1 a f2)⇂n = ((f1)⇂n) a f2. (2) (f1 a f2)↾(len f1 + i) = f1 a (f2↾i). A Gene-Set is a non-empty non empty finite sequence. Let S be a Gene-Set. We introduce GA− SpaceS as a synonym of UnionS. Let f ...

In the last several years we have made many improvements to NIST-F1 (a laser-cooled Cs fountain primary frequency standard at the National Institute of Standards and Technology (NIST) in Boulder, Colorado) resulting in a reduction by over a factor of 2 in the uncertainty of the realization of the SI second. The two most recent accuracy evaluations of NIST-F1 had combined standard fractional unc...

We develop a theory of schemes over the field of characteristic one which reconciles the previous attempts by Soulé and by Deitmar. Our construction fits with the geometry of monoids of Kato and is no longer limited to toric varieties. We compute the zeta function of an arbitrary Noetherian scheme (over the field of characteristic one) and prove that the torsion in the local geometric structure...

Homeobox (Hox) proteins regulate cell fate and segmental identity throughout the animal kingdom. Yet, given the homeodomain's promiscuous DNA binding activity in vitro, it is unclear how they select downstream target genes. The product of fushi tarzu (ftz) is a Hox protein responsible for the development of alternate parasegments within the Drosophila embryo. It has been shown that FTZ interact...

We define the field F1 of one element as a λ-ring Z with the canonical λ-structure. We show that we can calculate the Riemann zeta function of integers in two ways: the first, geometrical, as the zeta function of the affine line F1[x] over F1 and the second, categorical, using a suitable category of modules over F1.

Given a power q of a prime number p and “nice” polynomials f1, . . . , fr ∈ Fq[T, X] with r = 1 if p = 2, we establish an asymptotic formula for the number of pairs (a1, a2) ∈ Fq such that f1(T, a1T + a2), . . . , fr(T, a1T + a2) are irreducible in Fq[T ]. In particular that number tends to infinity with q. MR Classification: 12E30 Directory: \Jarden\Diary\BSJ 23 December, 2011 * Alexander von ...