Tissue Structure Changes of Aquilaria sinensis Xylem after Fungus Induction

In this study, we analyzed the mechanism and the process of fungal-induced agarwood formation in Aquilaria sinensis and studied the functional changes in the xylem structure after the process. The microscopic structure of the white zone, transition zone, agarwood zone, and decay zone of 12-and 18-months of inoculation A. sinensis xylem was studied. The distribution of nuclei, starch grains, soluble sugars, sesquiterpenes, fungal propagules, and mycelium in xylem tissues was investigated by histochemical analysis. The results show that the process of agarwood formation was accompanied by apoptosis of parenchyma cells such as interxylary phloem, xylem rays, and axial parenchyma. Regular changes in the conversion of starch grains to soluble sugars, the production of sesquiterpenoids, and other characteristic components of agarwood in various types of parenchyma cells were also observed. The material transformation was concentrated in the interxylary phloem, providing a structural and material basis for the formation of agarwood. It is the core part of the production of sesquiterpenoids and other characteristic products of agarwood. Compared with the A. sinensis inoculated for 12 months, the xylem of the A. sinensis inoculated for 18 months was more vigorous. There were no significant differences between the 12 and 18 months of inoculation in terms of sugars and agarwood characteristic products. In production, harvesting after 12 months of inoculation can improve harvesting efficiency.

The Role of an Agile and Lean Project Management Toolkit for Assisting E-Learning Project Management Teams in Multi-National Organisations

Project management is a term for which there are endless books professing the right way to conduct it. Project management is the systematic application of a standardized approach to conducting a project that increases that project's chances of success. It is known that IT projects are some of those projects most likely to fail, and e-learning projects are no different. The aim of this chapter is to explain how it might be possible to develop a toolkit that could allow e-learning systems of any scale to be developed by those who often have to deliver learning, but may not necessarily have skills in project management or ICT development. It is intended that the proposed toolkit would be valued by other internationally focussed organisations where learning and teaching are a core part of the activities that it conducts, but on a smaller scale. To achieve this, research is proposed at the University of Gloucestershire and Crocels Community Media Group. A pilot study is conducted, and the questionnaire for the study proves to be reliable.

Introduction to the Special IBMR Issue on the World Christian Encyclopedia, 3rd Edition

Forty years ago, David B. Barrett, then based in Nairobi, Kenya, put the finishing touches on the first edition of the World Christian Encyclopedia. A second edition was produced in 2001, and now a third edition is in circulation, prepared between 2015 and 2019. This special issue of the IBMR reflects a core part of the methodology of the World Christian Encyclopedia, namely, interaction with World Christianity from different disciplinary perspectives and geographic locations. This introduction to the issue features reflection on articles on global Catholicism, missions, women and gender studies, religious freedom, Christianity in the Middle East, and refugees.

Supramolecular assembly of chloroplast NAD(P)H dehydrogenase-like complex with photosystem I from Arabidopsis thaliana

Cyclic electron transport/flow (CET/CEF) in chloroplasts is a regulatory mechanism crucial for optimization of plant photosynthetic efficiency. CET is catalyzed by a membrane-embedded NAD(P)H dehydrogenase-like (NDH) complex containing at least 29 protein subunits and associating with photosystem I (PSI) to form the NDH-PSI supercomplex. Here we report the 3.9 angstrom resolution structure of Arabidopsis thaliana NDH-PSI (AtNDH-PSI) supercomplex. We have constructed structural models for 26 AtNDH subunits, among which 11 subunits are unique to chloroplast and stabilize the core part of NDH complex. In the supercomplex, one NDH can bind up to two PSI-LHCI complexes at both sides of its membrane arm. Two minor LHCIs, Lhca5 and Lhca6, each present in one PSI-LHCI, interact with NDH and contribute to the supercomplex formation and stabilization. Our results showed structural details of the supercomplex assembly and provide molecular basis for further investigation of the regulatory mechanism of CEF in plants.

Comparing languages and cultures: Parametrization of analytic criteria

The focus of the paper is to present arguments in favour of a complex set of areas of reference in cross-linguistic analyses of meanings, aimed in particular at the identification of a set of relevant analytic criteria to perform such a comparison. The arguments are based on lexicographic and corpus linguistic data and specifically on the polysemic concept of integrity in English and its lexical counterparts in Polish. It is generally assumed in Cognitive Linguistics, which is taken as the basic framework of the present study, that meanings, which are defined as convention-based conceptualizations, are not discrete entities, fully determined, even in fuller context but rather they are dynamic conventional conceptualizations[13]. Therefore, it is considered essential to identify first their basic, prototypical senses and then their broad meanings , which include, apart from the core part, their contextual, culture-specific, and connotational properties, defined in terms of a parametrized set of semasiological as well as onomasiological properties. The study methodology has also been adjusted towards this multifocused analysis of linguistic forms and considers the interdisciplinary - linguistic, psychological, cultural and social domains to identify the cultural conceptualizations of the analysed forms. In the present case a cognitive corpus-based analysis in monolinguistic English contexts and in the English-to-Polish and Polish-to-English translation data of lexicographic and parallel corpus materials, as well as cultural dimensions will be exemplified to conclude with a parametrized system of cognitive cross-linguistic tertia comparationis to more fully determine their broad linguistic meanings.

Credibility contests: The contributions of experiential knowledge to radicalisation expertise

Radicalisation has become a highly influential idea in British policy making. It underpins and justifies Prevent, a core part of the UK's counter-terrorism strategy. Experts have theorised the radicalisation process, often beset by a weak evidence base and mired in fundamental contestation on definitions and explanatory factors. Experiential experts have been active contributors to these debates, presenting a challenge to the low-ranking role often given to experiential knowledge in evidence hierarchies and a contrast to policy areas in which it remains poorly valued. This paper draws on interviews with radicalisation experts to examine the dynamics of this pluralisation in practice. With a focus on credibility contests, it explains how experiential experts can claim authoritative knowledge and the challenges they face from those who prioritise theory-driven empirical data as the basis for contributions to knowledge. The paper draws out the implications for understandings of expertise of this newly conceptualised, evidence poor and highly applied topic area.

FA and Motivating Reasons

The main aim in ‘FA and Motivating Reasons’ is to clear the ground for the discussion in Chapter 11 by drawing attention to some notions and distinctions that help us to understand the core elements of fitting-attitude analysis (FA). In particular, the distinction between explanatory and motivating reason plays a core part in this and the next chapter. In light of this distinction, the focus is on whether we should accept either ‘the guise of the good thesis’ or the more plausible ‘guise of reason thesis’. Eventually (in Chapter 11), it is argued that we should endorse neither of these. While the previous chapters gave us a positive insight (they lead to a modification of the FA pattern of analysis), this—and the next chapter also, as we shall see—will mainly have a negative impact. It suggests we should refrain from introducing certain modifications of FA analysis that at first sight might seem compelling.

Deepening a Sense of Being Taiwanese

This paper examines how the Amis, the largest indigenous community in Taiwan, draw on their Catholic faith to understand what it means to be Taiwanese. For over a century, the Amis were treated as marginalised citizens by the Japanese colonial government and the Han-Chinese Kuomintang under Chiang Kai-shek and Chiang Ching-kuo. Their predicament changed when political priorities shifted from cultural assimilation to multiculturalism after 1987. Successive Taiwanese governments since then have actively sought to incorporate indigenous culture as a core part of Taiwanese identity. Focusing on how the Amis intertwined their adopted Catholic notions and practices with pre-Christian ideas, social structure, and rituals, this paper demonstrates the ways in which the Amis carve out a place for themselves in wider Taiwanese society. It adds to ongoing discussions about the relationship between conversion and cultural transformation in Oceania by arguing that Catholicism empowered the Amis to deepen their sense of belonging to the island republic and, for the first time, assert themselves fully as Taiwanese.

300 Problems in Special and General Relativity

Einstein's theories of special relativity and general relativity form a core part of today's undergraduate (or Masters-level) physics curriculum. This is a supplementary problem book or student's manual, consisting of 150 problems in each of special and general relativity. The problems, which have been developed, tested and refined by the authors over the past two decades, are a mixture of short-form and multi-part extended problems, with hints provided where appropriate. Complete solutions are elaborated for every problem, in a different section of the book; some solutions include brief discussions on their physical or historical significance. Designed as a companion text to complement a main relativity textbook, it does not assume access to any specific textbook. This is a helpful resource for advanced students, for self-study, a source of problems for university teaching assistants, or as inspiration for instructors and examiners constructing problems for their lectures, homework or exams.

Conspicuous female plumage is common among open cup-nesting passerine birds

Alfred Russel Wallace hypothesized that the use of cavity or dome nests releases incubating birds from predation risk, and that this allows the evolution of conspicuous coloration in females. By this hypothesis, females that use open nests are subject to strong selection for crypsis. Here, we test the validity of Wallace’s proposed evolutionary correlation between nest type and conspicuous coloration in females across the largest avian radiation, the Passeriformes, using phylogenetic comparative methods. We also test an alternate hypothesis that cavity-nesting results in greater conspicuousness because competition for cavities is stronger than for other nest sites, and such competition can drive social selection on female plumage. By this hypothesis, dome-nesting females should generally be less conspicuous than cavity-nesting species. We found no support for Wallace’s hypothesis that concealed nests yield conspicuous plumage while open nests yield dull plumage, and some support for the social selection hypothesis in smaller-bodied, gregarious species. While our analyses do not support the core part of Wallace’s hypothesis, they corroborate his contention that evolutionary transitions in nest type are rare, indicating that nest types may influence macroevolutionary selective regimes for other traits.