University of Westminster

About: University of Westminster is a education organization based out in London, United Kingdom. It is known for research contribution in the topics: Population & Context (language use). The organization has 2944 authors who have published 8426 publications receiving 200236 citations. The organization is also known as: Westminster University & Royal Polytechnic Institution.

Self-report measures of executive function problems correlate with personality, not performance-based executive function measures, in nonclinical samples.

Abstract: Researchers and clinicians often measure executive function in patients and normal samples. In addition to cognitive tests that objectively measure executive function, several instruments have been developed that address individuals’ everyday experience of executive problems. Such self-report measures of executive problems may have value, but there are questions about the extent to which they tap objectively-measurable executive problems or are influenced by variables such as personality. Relationships between self-reported executive problems, personality, and cognitive test performance were assessed in three separate, well-powered, methodologically distinct correlational studies using non-clinical samples. These studies used multiple measures of personality and self-reported executive function problems. Across all three studies, self-reported executive function problems were found to correlate with neuroticism and with low conscientiousness, with medium to large effect sizes. However self-reported problems did not correlate with performance on Trail Making, Phonemic Fluency, Semantic Fluency or Digit Span tests tapping executive function. A key implication of these findings is that in non-clinical samples, self-report questionnaires may not be proxies for executive functioning as measured by neuropsychological tests.

Women and Work in the Information Age

Abstract: Widespread social transformation and new class structures are predicted with the coming of the ‘information age’, but there is disagreement about the likely outcomes for work and em-ployment patterns. Mainstream writing on the information age, both from the functionalist and Marxist traditions, tends not to consider likely consequences for women, but recent feminist research on gender and technology, treating technology as masculine culture, offers a useful framework for further research. This article argues that the information age may lead to some areas of convergence between the sexes in their experience of future work, but men may continue to defend areas of competence and to dominate the high status and powerful occupational positions of the future.

Hydrogen-peroxide-producing system of Pleurotus eryngii involving the extracellular enzyme aryl-alcohol oxidase

Abstract: The effect of benzyl alcohol, benzaldehyde and benzoic acid on the production of extracellular hydrogen peroxide (H2O2) by the ligninolytic fungusPleurotus eryngii was investigated. It was found that an equilibrium between oxidative and reductive reactions of these compounds is established, leading to the continuous production of H2O2. A multienzymatic cyclic system is proposed in which H2O2 is produced extracellularly by the action of aryl-alcohol oxidase on benzyl alcohol, the most abundant compound after redox reactions, and to a lower extent on benzaldehyde. The oxidation products of these reactions, benzaldehyde and benzoic acid, are reduced by intracellular dehydrogenases.

Role of quorum sensing and chemical communication in fungal biotechnology and pathogenesis.

Abstract: Microbial cells do not live in isolation in their environment, but rather they communicate with each other using chemical signals. This sophisticated mode of cell-to-cell signalling, known as quorum sensing, was first discovered in bacteria, and coordinates the behaviour of microbial population behaviour in a cell-density-dependent manner. More recently, these mechanisms have been described in eukaryotes, particularly in fungi, where they regulate processes such as pathogenesis, morphological differentiation, secondary metabolite production and biofilm formation. In this manuscript, we review the information available to date on these processes in yeast, dimorphic fungi and filamentous fungi. We analyse the diverse chemical 'languages' used by different groups of fungi, their possible cross-talk and interkingdom interactions with other organisms. We discuss the existence of these mechanisms in multicellular organisms, the ecophysiological role of QS in fungal colonisation and the potential applications of these mechanisms in biotechnology and pathogenesis.