In-situ forming hydrogels have gained noticeable attention to encapsulate osteogenic agents and regenerate irregular-shape bone defects. In this study, a novel thermosensitive hydrogel based on blended methylcellulose (MC) with Persian gum (PG) was fabricated enriched taxifolin (TAX) loaded halloysite nanotubes (HNTs) enhance mechanical biological characteristics of the in tissue engineering. T...

Bu çalışma, Orta Karadeniz Bölgesi doğal florasından toplanan domuz ayrığı (Dactylis glomerata ssp.), kamışsı yumak (Festuca arundinaceae ssp.) ve ak üçgül (Trifolium repens popülasyonlarının çekirdek DNA içeriklerinin flow sitometri yöntemiyle belirlenmesi ploidi analizi ile tür teşhisinde kullanılması amacıyla yürütülmüştür. Proje kapsamında üçgülden mera tipi 80, ayrığından ot 80 yumaktan ot...

In this issue of Pediatrics, Romer and colleagues examine the judgments of parents watching a series of movie clips with sexual and violent content. These clips, viewable at the Annenberg Public Policy Center’s Web site, are a bit unsettling (they include sexual encounters that leave little to the imagination, executions that come by surprise, and battles between humans and robots that end in t...

If one hopes to extend AG(4, 2) to an S(4, 5, 17), an extension of PG(3, 2) with bases is necessary. A geometric construction of such an extension of PG(3, 2) is given along with some remarks on further extending AG(4, 2) to an S(4, 5, 17).

Our starting point is a very simple one, namely that of a set L4 of four mutually skew lines in PG(7, 2). Under the natural action of the stabilizer group G(L4) < GL(8, 2) the 255 points of PG(7, 2) fall into four orbits ω1, ω2, ω3, ω4, of respective lengths 12, 54, 108, 81. We show that the 135 points ∈ ω2 ∪ ω4 are the internal points of a hyperbolic quadric H7 determined by L4, and that the 8...

We give necessary and sufficient conditions that a polynomial f(x, y) gives an ovoid of PG(3, q). Furthermore by considering Rédei polynomials associated to ovoids of PG(3, q) we obtain sets of equations relating the coefficients of f(x, y). One such set of equations implies that if xy occurs as a term in f(x, y) + xy then i and j must have disjoint binary expansions.

This irregular hyperoval, found by computer search in 1958, has many interesting and unusual properties. We provide a synthetic construction of this hyperoval, use the construction to determine the full group of automorphisms of the hyperoval, provide computer-free proofs of its known properties and introduce some new results concerning the intersection of this hyperoval and conics in the given...

In this paper, we develop some of the theory of spreads of projective spaces with an eye towards generalizing the results of Bruck 2]. In particular , we wish to generalize the notion of a subregular spread to the higher dimensional case. Most of the theory here was anticipated by Bruck in 3], 4], and 5]; however, he never provided a detailed formulation. We ll this gap here by developing the c...

In previous studies we have shown that the optical variability of quasars increases, on average, with redshift. We explained this dependance in terms of a hardening of the spectrum during bright phases, coupled with the increase of the rest-frame frequency for increasing red-shift. We re-analize now these correlations on the basis of new light curves of PG quasars, recently published by the Wis...