A regular language is k-lookahead deterministic (resp. k-block deterministic) if it is specified by a k-lookahead deterministic (resp. k-block deterministic) regular expression. These two subclasses of regular languages have been respectively introduced by Han and Wood (k-lookahead determinism) and by Giammarresi et al. (k-block determinism) as a possible extension of one-unambiguous languages ...

We present an Oppenheim type determinantal inequality for positive definite block matrices. Recently, Lin [Linear Algebra Appl. 2014;452:1–6] proved a remarkable extension of matrices, which solved conjecture Günther and Klotz. There is requirement that two matrices commute in Lin's result. The motivation this paper to obtain another natural general get rid the commute.

Despite decades of investigation, the origin forces driving continental rifting remains highly debated. Deciphering their relative contributions is challenging due to nonlinear and depth-dependent nature lithospheric rheology. Recent geodynamic studies East African Rift (EAR) report contradicting results regarding contribution horizontal mantle tractions buoyancy forces. Here, we use high-resol...

A coding scheme for the binary memoryless source is presented. The scheme is an extension of a scheme discovered by Lynch and Davisson and developed by Schalkwijk, and is based upon the Schalkwijk algorithm for the Lynch-Davisson (LD) code. The new coding scheme is shown to be asymptotically optimal as the block length approaches infinity, regardless of the source statistics. Although the LD sc...

In this paper we describe improvements to the techniques used to cryptanalyze SHA-0 and introduce the first results on SHA1. The results include a generic multi-block technique that uses nearcollisions in order to find collisions, and a four-block collision of SHA-0 found using this technique with complexity 2. Then, extension of this and prior techniques are presented, that allow us to find co...

this research was based on primary data collected through well designed and pre-tested questionnaire, to determine awareness of farmers on extension methods used by adp in kano state of nigeria. multistage sampling technique was used, in which three local governments were randomly selected. secondly, three wards one each from the selected local governments (danbatta, gaya and madobi) were rando...

present study was conducted in the three provinces of pakistan with the objectives to study the curricula relevancy with the participatory extension, supervision and administration and its practical applicability at the field level. for this extension agents of the selected provinces were selected purposively. mail questionnaire were used as instruments for data collection form 227 respondents ...

this study examined the accuracy between extension professionals and farmers regarding their perceptions of privatization and commercialization of agricultural extension services. the study was carried out in delta state, nigeria and it had a sample size of 224 respondents comprising of 134 extension professionals of the delta state agricultural programme (dtadp) and 90 farmers that were random...

In the paper various PHY abstraction methods for both orthogonal and non-orthogonal systems are presented, which allow to predict the coded block error rate (BLER) across the subcarriers transmitting this FEC-coded block for any given channel realization. First the efficiency of the selected methods is investigated and proved by the means of computer simulations carried out in orthogonal mutica...

DPMine generic purpose workflow language is rooted in DPMine/P scientific workflow language and a set of plug-ins for ProM which originally were developed for convenient piping of different plug-ins within ProM framework. DPMine/C is a new version of DPMine workflow language and a C++ library. The main language concept was complemented by comprehensive analysis of DPMine/C model execution seman...