It is shown that solvable mixed spin ladder models can be constructed from su(N) permutators. Heisenberg rung interactions appear as chemical potential terms in the Bethe Ansatz solution. Explicit examples given are a mixed spin-1 2 spin-1 ladder, a mixed spin-1 2 spin-3 2 ladder and a spin-1 ladder with biquadratic interactions.

Advances in biodiversity genomic sequencing will increasingly depend on the availability of DNA samples-and their quantifiable metadata-preserved in large institutional biorepositories that are discoverable to the scientific community. Improvements in sequencing technology constantly provide longer reads, such that longer fragment length, higher molecular weight, and overall "genome-quality" DN...

The effect of ellagic acid, a naturally occurring plant phenol, on the binding to DNA and metabolism of benzo(a)pyrene (BP) and trans-7,8-dihydro-7,8-dihydroxybenzo(a)pyrene (BP 7,8-DHD) in cultured explants of strain A mouse lung was investigated. The explants were cultured in a rocking organ culture chamber for 16 h in the presence or absence of 10, 25, 50, and 100 microM ellagic acid. These ...

We have examined the behavior of T7 RNA polymerase (RNAP) at a set of promoter variants having all possible single base pair (bp) substitutions. The polymerase exhibits an absolute requirement for initiation with a purine and a strong preference for initiation with GTP vs ATP. Promoter variants that would require initiation at the normal start site (+1) with CTP or UTP result in a shift in init...

Abstract Ordering events in time is essential for the understanding of causal relationships between successive events. Incorrect links can lead to false beliefs and an altered perception reality. These symptoms belong psychosis, which present schizophrenia (SZ) spectrum bipolar (BP) disorder. Experimental results show that patients with SZ have temporal order, while there are no data BP. We inv...

Seueral techniquesare available for implementingascalardigitaffilter using lattice and ladder structures which are known to yield low noise realizations. Ofthese, the lattice and ladder structures proposed by Gray and Markel have the advantage of being interimlly scaled Block implementation of a scalar digitalfilteroflers a number of advantages. Inthis pnpet, new algorithms to realize block dig...

Ladder inclined angle is a critical factor that could lead to a slip at the base of portable straight ladders, a major cause of falls from heights. Despite several methods established to help workers achieve the recommended 75.5° angle for ladder set-up, it remains unclear if these methods are used in practice. This study explored ladder set-up behaviours in a field environment. Professional in...

Pulsed Field Gel Electrophoresis (1) makes postfble the separation and resolution of DMA BOlecules above the size range of constant ffeld agarose electrophoresfs. Currently, the size standards available for pulsed ffeld experiments consist of bacteriophage DHA oligomer "ladders" of various molecular weights (2). Here we describe a staple, rapid and reproducible method for construction of plasai...

objective the aim of this study was to compare the sensitivity and specificity of acid fast and auramine-rhodamine staining and multiplex pcr for the detection of mycobacterium tuberculosiscomplex and non tuberculosis mycobacteria on formalin fixed paraffin embedded tissues (ffpe) materials and methods forty cases of ffpe pleural and bronchial tissue with chronic granulomatous inflammation and ...

A ladder lottery, known as the “Amidakuji” in Japan, is a common way to choose an assignment randomly. Formally, a ladder lottery of a permutation π = (p1, p2, . . . , pn) is a network with n vertical lines (lines for short) and many horizontal lines (bars for short) as follows (see Fig. 1). The i-th line from the left is called line i. The top ends of the n lines correspond to π. The bottom en...