introduction: sildenafil, a phosphodiesterase-5 (pde5) inhibitor, may have various effects on the central nervous system via the nitric oxide (no)-cyclic guanosine monophosphate (cgmp) pathway. preclinical studies have shown the controversial effect of sildenafil on anxiety-like behavior in animals. this study was undertaken to investigate the acute effect of sildenafil on anxiety-like behavior...

Introduction: Sildenafil, a phosphodiesterase-5 (PDE5) inhibitor, may have various effects on the central nervous system via the nitric oxide (NO)-cyclic guanosine monophosphate (cGMP) pathway. Preclinical studies have shown the controversial effect of sildenafil on anxiety-like behavior in animals. This study was undertaken to investigate the acute effect of sildenafil on anxiety-like behavior...

Unlike those used in the West, a typical Chinese multiplication table includes only smaller-operand-first entries (e.g., 3 x 7=21, but not 7 x 3=21). Due to this unique feature, multiplication for Chinese subjects has been found to show an operand-order effect. The present study aims to investigate the neural bases of the operand-order effect. Subjects were 20 Mainland Chinese subjects who lear...

One of the most important aspects of macromolecular structure refinement is the use of prior chemical knowledge. Bond lengths, bond angles and other chemical properties are used in restrained refinement as subsidiary conditions. This contribution describes the organization and some aspects of the use of the flexible and human/machine-readable dictionary of prior chemical knowledge used by the m...

Let (S,+) be an infinite commutative semigroup with identity 0. Let u, v ∈ N and let A be a u×v matrix with nonnegative integer entries. If S is cancellative, let the entries of A come from Z. Then A is image partition regular over S (IPR/S) iff whenever S \{0} is finitely colored, there exists ~x ∈ (S \{0}) such that the entries of A~x are monochromatic. The matrix A is centrally image partiti...

English title: Wikipedia entries on fiction and non-propositional knowledge representation) Given that Wikipedia entries are likely to extert a strong influence on how literary texts are perceived – due to their preferential ranking in Google – there is some demand that research dealing with the transfer of knowledge on literature to the public be more concerned with looking into both the conte...

After publication we discovered that some entries in table 2 and the corresponding contours figures 3 4 have been misprinted. We provide here correct version of 4. The discussion conclusions text paper remain unchanged.

In cases where we do not have the exact parameter values of a mathematical model, often at least some structural information, e.g., that parameters are nonzero. Such information can be captured by so-called pattern matrices, whose symbolic entries used to represent available about corresponding parameters. this letter, focus on matrices with three types entries: those zero, nonzero, and arbitra...

We developed MicroGen, a multi-database Web based system for managing all the information characterizing spotted microarray experiments. It supports information gathering and storing according to the Minimum Information About Microarray Experiments (MIAME) standard. It also allows easy sharing of information and data among all multidisciplinary actors involved in spotted microarray experiments.

OBJECTIVES To analyse the total number of newspaper articles citing the four leading general medical journals and to describe national citation patterns. DESIGN Quantitative content analysis. SETTING/SAMPLE Full text of 22 general newspapers in 14 countries over the period 2008-2015, collected from LexisNexis. The 14 countries have been categorised into four regions: the USA, the UK, Wester...