A bstract We present a loop-by-loop method for computing the differential equations of Feynman integrals using recently developed dual form formalism. give explicit prescriptions fibration multi-loop forms. Then, we test our formalism on simple, but non-trivial, example: two-loop three-mass elliptic sunrise family integrals. obtain an ? -form equation within correct function space in sequence r...

In this paper, theoretical aspects to demonstrate the accuracy of the Interval Test (the I test and the direction vector I test) to be applied for resolving the problem stated above is presented. Also, it is proved from the proposed theoretical aspects that under a specific direction vector 1 ( , , ) d θ = = = ... there are integer-valued solutions for one-dimensional arrays with subscripts for...

during the past few years, researchers and practitioners have developed novel techniques, using ansa cervicalis to innervate muscles of the larynx paralyzed due to surgical procedures carried out in the chest and neck areas. during routine dissection of a middle-age male cadaver, an unusual course of the superior root of the ansa cervicalis was observed. in this case, the superior root of the a...

PURPOSE To evaluate the hemolysin effect by ileal loop model produced by Vibrio cholerae O1 strains, compared with the cellular lysis or cytotoxic activity (CA) observed in cell culture. METHOD We studied nine V. cholerae O1 strains, obtained during the Mexican outbreak of cholera (1990-1993), which had CA in Vero and CHO cells. Hemolysin was monitored with the hemolysis test. Titers of CA we...

Background: Pairwise stochastic context-free grammars (Pair SCFGs) are powerful tools for evolutionary analysis of RNA, including simultaneous RNA sequence alignment and secondary structure prediction, but the associated algorithms are intensive in both CPU and memory usage. The same problem is faced by other RNA alignment-and-folding algorithms based on Sankoff's 1985 algorithm. It is therefor...

although lcl filters are used widely in the grid connected inverters to reduce high-orderharmonics, such a system increases system order and therefore sustainable design of closed-loopcontroller system will be complicated. recently, the single-loop control strategy has beensuggested for l or lc filter based grid-connected inverters. however, the use of single-loopcontrol directly in lcl filter-...

The flow-volume loop is a test of ventilatory function in which a graphic recording of maximal flow rates is dispiayed at all lung volumes during a maximal effort forced expiratory and inspiratory vital capacity maneuver. The test is errsy to demonstrate, administer, and analyze. Pulmonary diseases produce characteristic flow-volume loop abnormalities. The visualization of abnormalities and cal...

We prove that a class of one-loop partition functions found by Dienes, giving rise to a vanishing cosmological constant to one-loop, cannot be realized by a consistent lattice string. The construction of non-supersymmetric string with a vanishing cosmological constant therefore remains as elusive as ever. We also discuss a new test that any one-loop partition function for a lattice string must ...