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269 result(s) for "Ansell, W"
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Inequality and democratization : an elite-competition approach
\"Research on the economic origins of democracy and dictatorship has shifted away from the impact of growth and turned toward the question of how different patterns of growth - equal or unequal - shape regime change. This book offers a new theory of the historical relationship between economic modernization and the emergence of democracy on a global scale, focusing on the effects of land and income inequality. Contrary to most mainstream arguments, Ben W. Ansell and David J. Samuels suggest that democracy is more likely to emerge when rising, yet politically disenfranchised, groups demand more influence because they have more to lose, rather than when threats of redistribution to elite interests are low\"-- Provided by publisher.
From the Ballot to the Blackboard
From the Ballot to the Blackboard provides the first comprehensive account of the political economy of education spending across the developed and developing world. The book demonstrates how political forces like democracy and political partisanship and economic factors like globalization deeply impact the choices made by voters, parties, and leaders in financing education. The argument is developed through three stories that track the historical development of education: first, its original expansion from the elite to the masses; second, the partisan politics of education in industrialized states; and third, the politics of higher education. The book uses a variety of complementary methods to demonstrate the importance of redistributive political motivations in explaining education policy, including formal modeling, statistical analysis of survey data and both sub-national and cross-national data, and historical case analyses of countries including the Philippines, India, Malaysia, England, Sweden, and Germany.
A history of continental philosophy
Beginning with Kant and the earliest responses to his critical philosophy and ending with the latest developments in continental thinking across a range of disciplines, these volumes present the first coherent and comprehensive history of the continental tradition of philosophy. Divided, chronologically and thematically, into eight volumes, the \"History of Continental Philosophy\" is an indispensable resource for anyone conducting research or teaching in philosophy and related fields inthe humanities and social sciences where the influence of continental theory has been widespread. Alan Schrift has brought together an internationally renowned team of volume editors and contributors to provide an unrivalled analysis of the complex and interconnected history of continental philosophy that will become a reference point for all future work in the field.
Phylogeography of the Sino-Himalayan Fern Lepisorus clathratus on “The Roof of the World”
The Qinghai-Tibetan Plateau (QTP) and its southern and southeastern mountain ranges, Himalaya-Hengduan Mountains (HHM), are one of the most extensive habitats for alpine plants in the world. How ferns occurring in QTP and HHM changed their distribution ranges in response to Quaternary climatic oscillations remains almost unknown. We employed sequences of two chloroplast DNA regions, rps4-trnS and trnL-trnF, to reconstruct phylogeography of the Sino-Himalayan fern Lepisorus clathratus, occurring mainly in the QTP and HHM. Individuals of this species have either dehiscent or indehiscent sporangia with the latter evolved from the plesiomorphic dehiscent forms. Based on a range-wide sampling, we detected 27 cpDNA haplotypes that were divided into five groups by network analyses. Populations in the Hengduan Mountains possess the highest genetic diversity, while a single haplogroup is detected across the north-central region. A distinct phylogeographical subdivision was detected between the Hengduan Mountains and north-central region by AMOVA analysis. The haplogroup distribution pattern, coalescence and AMOVA analysis suggest that a long term survival area (refugia) of the species was located in the Hengduan Mountains during glaciations, with probable range expansions into north-central regions during interglacial periods. Populations with indehiscent sporangium can carry private haplotypes and are inclined to maintain genetic homogeneity. One group with indehiscent sporangia most likely survived in situ on the QTP during glaciations. This study for the first time sheds light on the response of alpine ferns in the QTP and HHM to the Quaternary climatic oscillations.
Systematics and evolution of arctic-alpine Arabis alpina (Brassicaceae) and its closest relatives in the eastern Mediterranean
Premise of the study: The high mountains in southern Anatolia and the eastern Mediterranean are assumed to play a major role as a primary center of genetic diversity and species richness in Eurasia. We tested this hypothesis by focusing on the widespread perennial arctic-alpine Arabis alpina and its sympatrically distributed closest relatives in the eastern Mediterranean. Methods: Plastid (trnL intron, trnL-F intergenic spacer) and nuclear (ITS) DNA sequence analysis was used for phylogenetic reconstruction. Broad-scale plastid haplotype analyses were conducted to infer ancestral biogeographic patterns. Key results: Five Arabis species, identified from the eastern Mediterranean (Turkey mainland and Cyprus), evolved directly and independently from A. alpina, leaving Arabis alpina as a paraphyletic taxon. These species are not affected by hybridization or introgression, and species divergence took place at the diploid level during the Pleistocene. Conclusions: Pleistocene climate fluctuations produced local altitudinal range-shifts among mountain glacial survival areas, resulting not only in the accumulation of intraspecific genotype diversity but also in the formation of five local species. We also show that the closest sister group of Arabis alpina consists exclusively of annuals/winter annuals and diverged prior to Pleistocene climatic fluctuations during the colonization of the lowland Mediterranean landscape. These findings highlight that Anatolia is not only a center of species richness but also a center for life-history diversification.
Sporophytic self-incompatibility genes and mating system variation in Arabis alpina
• Background and Aims Sporophytic self-incompatibility (SI) prevents inbreeding in many members of the Brassicaceae, and has been well documented in a variety of high-profile species. Arabis alpina is currently being developed as a model system for studying the ecological genetics of arctic-alpine environments, and is the focus of numerous studies on population structure and alpine phylogeography. Although it is highly inbreeding throughout most of its range, populations in central Italy have been identified that show inbreeding coefficients (F₁S) more typical of self-incompatible relatives. The purpose of this study was to establish whether this variation is due to a functioning SI system. • Methods Outcrossing rate estimates were calculated based on 16 allozyme loci and self-compatibility assessed based on controlled pollinations for six Italian populations that have previously been shown to vary in F₁S values.Putative SRK alleles (the gene controlling the female component of SI in other Brassicaceae) amplified from A. alpina were compared with those published for other species. Linkage of putative SRK alleles and SI phenotypes was assessed using a diallel cross. • Key Results Functional avoidance of inbreeding is demonstrated in three populations of A. alpina, corresponding with previous F₁S values. The presence is described of 15 putative SRK-iike alíeles, which show high sequence identity to known alíeles from Brassica and Arabidopsis and the high levels of synonymous and nonsynonymous variation typical of genes under balancing selection. Also, orthologues of two other members of the S-receptor kinase gene family, AlyS (ARK3) and Aly9 (AtSI) are identified. Further to this, co-segregation between some of the putative S-alleles and compatibility phenotypes was demonstrated using a full-sibling cross design. • Conclusions The results strongly suggest that, as with other species in the Brassicaceae, A. alpina has a sporophytic SI system but shows variation in the strength of SI within and between populations.
Diverse spore rains and limited local exchange shape fern genetic diversity in a recently created habitat colonized by long-distance dispersal
• Background and Aims Populations established by long-distance colonization are expected to show low levels of genetic variation per population, but strong genetic differentiation among populations. Whether isolated populations indeed show this genetic signature of isolation depends on the amount and diversity of diaspores arriving by long-distance dispersal, and time since colonization. For ferns, however, reliable estimates of long-distance dispersal rates remain largely unknown, and previous studies on fern population genetics often sampled older or non-isolated populations. Young populations in recent, disjunct habitats form a useful study system to improve our understanding of the genetic impact of long-distance dispersal. • Methods Microsatellite markers were used to analyse the amount and distribution of genetic diversity in young populations of four widespread calcicole ferns (Asplenium scolopendrium, diploid; Asplenium trichomanes subsp. quadrivalens, tetraploid; Polystichum setiferum, diploid; and Polystichum aculeatum, tetraploid), which are rare in The Netherlands but established multiple populations in a forest (the Kuinderbos) on recently reclaimed Dutch polder land following long-distance dispersal. Reference samples from populations throughout Europe were used to assess how much of the existing variation was already present in the Kuinderbos. • Key Results A large part of the Dutch and European genetic diversity in all four species was already found in the Kuinderbos. This diversity was strongly partitioned among populations. Most populations showed low genetic variation and high inbreeding coefficients, and were assigned to single, unique gene pools in cluster analyses.Evidence for interpopulational gene flow was low, except for the most abundant species. • Conclusions The results show that all four species, diploids as well as polyploids, were capable of frequent long-distance colonization via single-spore establishment. This indicates that even isolated habitats receive dense and diverse spore rains, including genotypes capable of self-fertilization. Limited gene flow may conserve the genetic signature of multiple long-distance colonization events for several decades.