Over 200 cases of actinide intake, occurring over the last 25 years, have been re-assessed. Cases were selected for which the intake date was known, there was both urine and faecal data and there was negligible interference from earlier intakes. The IMBA software was used to obtain a best fit to the data and establish an estimate of intake for each case. It is found that the magnitudes of the i...

We establish a series of integral formulae involving the Hurwitz zeta function. Applications are given to integrals of Bernoulli polynomials, log Γ(q) and log sin(q).

We establish a series of integral formulae involving the Hurwitz zeta function. Applications are given to integrals of Bernoulli polynomials, log Γ(q) and log sin(q).

This article reports on a large-scale survey of nearly two thousand faculty and students at one institution, University College London, and profiles their use and perceptions of ebooks. The context for the study is an action research project, CIBER’s SuperBook, that will further investigate the issues raised in this initial benchmarking survey using deep log analysis and qualitative methods. Th...

Computer transaction log analysis comprises the modeling of patterns of machine–user transactions. Due to the web-like structure of the Internet, Interactions can be represented in a three-dimensional, origin–destination–time flow/transaction matrix. Loglinear models are used to model these transactions in terms of their time, origin and destination components and to detect the signature and st...

The complexation reactions of some transition metal ions and 2-aminopyridine (2-ampy) were studied potentiometrically in aqueous solution at µ=0.1 M and 25 °C. The overall stability constants log β’s of all species are obtained by computer refinement of pH-volume data with using the BEST computer program. Several models were tested and the best one accepted according to the least sum of squ...

species diversity is one of the important characteristics shows rangeland ecosystems changes, which isalready under effects of management practices. thus, this research was conducted to study speciesdiversity variation and assess suitable distributive abundance model in three rangeland sites in westazerbaijan. these sites were almost similar in environmental properties and differ in view point ...

Abstract We prove two conjectural identities of Z.-W. Sun concerning Apéry-like series. One the series is alternating, whereas other one not. Our main strategy to convert and alternating log-sine-cosine log-sinh-cosh integrals, respectively. Then we express all these integrals using single-valued Bloch–Wigner–Ramakrishnan–Wojtkowiak–Zagier polylogarithms. The conjectures then follow from a few ...

our planet is threatened by nuclear wars, climate change and degradation of biodiversity. the first two dangers are relatively focused on, but biodiversity degradation is not properly considered yet. species diversity is mostly composed of biodiversity and is considered an index of changes in ecosystems. many of researchers think of higher species diversity as an index of bio-system’s stability...