Luteoprotective mechanisms of luteinizing hormone (LH) involved in the maintenance of bovine corpus luteum (CL) function have not been completely clarified. Since antioxidant enzymes are well documented as antiapoptotic factors in the CL of many mammals, we hypothesized that the luteoprotective action of LH is mediated by stimulating the local production and action of antioxidant enzymes. To te...

Vegetative growth signaling of the opportunistic human pathogenic fungus Aspergillus fumigatus is mediated by GpaA (Gα). FlbA is a regulator of G protein signaling, which attenuates GpaA-mediated growth signaling in this fungus. The flbA deletion (ΔflbA) and the constitutively active GpaA (GpaA(Q204L)) mutants exhibit enhanced proliferation, precocious autolysis, and reduced asexual sporulation...

We report a facile synthesis of novel angularly fused bistetracene derivatives where two tetracene skeletons are cata-annulated at three benzene rings. Compared with previously described examples, our bistetracenes exhibit a narrower HOMO–LUMO gap but still exhibit high stability. Attempted synthesis of di-substituted bistetracene (BT-2TIPS) also led to unexpected triple (BT-3TIPS) and four-fol...

We revisit the work of Paterson and of Meijer & Hutton, which describes how to construct catamorphisms for recur-sive datatype deenitions that embed contravariant occurrences of the type being deened. Their construction requires , for each catamorphism, the deenition of an anamor-phism that has an inverse-like relationship to that cata-morphism. We present an alternative construction, which rep...

Multimedia and real-time applications require bandwidth guarantees, which may be achieved by resource reservation. However, resource reservation in ad-hoc networks is a very challenging task due to the instability of radio channels, node mobility and lack of coordination between mobile nodes. Proposed reservation MAC protocols like CATA, FPRP, R-CSMA and SRMA/PA have limitations and are suitabl...

A concise, (Z)-selective ring-closing metathesis (RCM) route to the 14-membered carbocycle of bielschowskysin is detailed, using nat-urally occurring chiral starting materials. Unproductive RCM substrates were attributed alkyne chelation ruthenium cata-lyst and steric disadvantages within cembranoid precursors, which was eventually circumvented by cyclic diol benzylidene protection involving a ...

The Bonarda variety has been used as a base for common red wines due to its contribution color and low level of astringency consequence relative tannin concentration. use Microwave- Assisted Extraction (MWE) accelerates the maceration process, improving diffusion grape compounds into must, while stems addition during maceration/fermentation constitutes sustainable technological alternative incr...