A common problem of the preparation of hexachlorofluorescein labeled oligonucleotides is the transformation of the fluorophore to an arylacridine derivative under standard ammonolysis conditions. We show here that the arylacridine byproduct with distinct optical characteristics cannot be efficiently separated from the major product by HPLC or electrophoretic methods, which hampers precise physi...

Dihydrodipicolinate synthase (DHDPS) catalyzes the rate limiting step in lysine biosynthesis in bacteria and plants. The structure of DHDPS has been determined from several bacterial species and shown in most cases to form a homotetramer or dimer of dimers. However, only one plant DHDPS structure has been determined to date from the wild tobacco species, Nicotiana sylvestris (Blickling et al. (...

The purpose of this paper is to give a regularization method for solving a system of ill-posed equations involving linear bounded mappings in real Hilbert spaces and an example of finding a common solution of two systems of linear algebraic equations with singular matrices. Mathematics Subject Classification: 47H17

We classify all functions satisfying non-trivial families of PVIα equations. It turns out that all of these 23 solutions are of geometric origin: they are related to deformations of elliptic surfaces as proved earlier by Doran. Similarly, we prove that the same solutions can be obtained from deformations of three-sheeted covers of P1 with branching locus consisting of four points. e-mail: basse...

Introduction Proper functioning of the digestive system is imperative to assimilate nutrients, to sustain essential functions in the human body, to increase the bioavailability of nutrients, to minimize the risk of food intolerances, and to reduce the formation of toxins/irritants in the gastrointestinal-tract. Incomplete digestion often results in digestive problems such as bloating, diarrhea,...

Inferring connectivity in neuronal networks remains a key challenge in statistical neuroscience. The “common input” problem presents the major roadblock: it is difficult to reliably distinguish causal connections between pairs of observed neurons from correlations induced by common input from unobserved neurons. Since available recording techniques allow us to sample from only a small fraction ...

this work concerns the peristaltic flow of a williamson fluid model in an inclined asymmetric channel under combined effects of heat and mass transfer. the governing nonlinear partial differential equations are simplified under the lubrication approach and then solved analytically and numerically. the analytical results are computed with the help of regular perturbation and the numerical result...

BACKGROUND Common warts are skin diseases caused by human papillomavirus. Several treatment modalities available for common warts, two of them are electrodesiccation with curettage and application of 80% phenol solution. AIM This study aims to compare clinical efficacy between these two modalities. MATERIAL AND METHODS Open clinical trial was conducted at Dr Pirngadi General Hospital Medan ...

The scaling of silicon-based MOSFET technology beyond the 22 nm node is challenging. Further progress requires new materials, innovative structures, and even novel device concepts. All the emergent channel materials need perfect top-gate dielectric stacks in order to sustain their potential device performance. ALD high-k as a common gate stack solution finds itself very successfully integrated ...

The ATN as a global aviation infrastructure provides communications service to different classes of safety and non-safety related users over different air-ground subnetworks. The ATN provides mobility and segregates traffic using the OSI IDRP routing protocol and CLNP packet forwarding protocol. Non-safety related services such as those envisioned for the “Airborne Internet” could be rapidly de...