Mathematical Modeling
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The Origins and Consequences of Kin Networks and Marriage Practices
The origins and consequences of kin networks and marriage practices by Duman Bahramirad M.Sc., University of Tehran, 2007 B.Sc., University of Tehran, 2005 Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in the Department of Economics Faculty of Arts and Social Sciences c Duman Bahramirad 2018 SIMON FRASER UNIVERSITY Summer 2018 Copyright in this work rests with the author. Please ensure that any reproduction or re-use is done in accordance with the relevant national copyright legislation. Approval Name: Duman Bahramirad Degree: Doctor of Philosophy (Economics) Title: The origins and consequences of kin networks and marriage practices Examining Committee: Chair: Nicolas Schmitt Professor Gregory K. Dow Senior Supervisor Professor Alexander K. Karaivanov Supervisor Professor Erik O. Kimbrough Supervisor Associate Professor Argyros School of Business and Economics Chapman University Simon D. Woodcock Supervisor Associate Professor Chris Bidner Internal Examiner Associate Professor Siwan Anderson External Examiner Professor Vancouver School of Economics University of British Columbia Date Defended: July 31, 2018 ii Ethics Statement iii iii Abstract In the first chapter, I investigate a potential channel to explain the heterogeneity of kin networks across societies. I argue and test the hypothesis that female inheritance has historically had a posi- tive effect on in-marriage and a negative effect on female premarital relations and economic partic- ipation. In the second chapter, my co-authors and I provide evidence on the positive association of in-marriage and corruption. We also test the effect of family ties on nepotism in a bribery experi- ment. The third chapter presents my second joint paper on the consequences of kin networks. -
Revolution and Democracy: Sociopolitical Systems in the Context of Modernisation Leonid E
preview version Revolution and Democracy: Sociopolitical Systems in the Context of Modernisation Leonid E. Grinin and Andrey V. Korotayev Abstract The stability of socio-political systems and the risks of destabi- lisation in the process of political transformation are among the most im- portant issues of social development; the transition to democracy may pose a serious threat to the stability of a respective socio-political system. This article studies the issue of democratisation. It highlights the high economic and social costs of a rapid transition to democracy for countries unpre- pared for it—democracy resulting from revolutions or similar large-scale events. The authors believe that in a number of cases authoritarian regimes turn out to be more effective in economic and social terms than emerging democracies, especially those of a revolutionary type, which are often inca- pable of ensuring social order and may have a swing to authoritarianism. Effective authoritarian regimes can also be a suitable form of transition to an efficient and stable democracy. Using historical and contemporary examples, particularly the recent events in Egypt, the article investigates various correlations between revolutionary events and the possibility of es- tablishing democracy in a society. Keywords: democracy, revolution, extremists, counterrevolution, Isla- mists, authoritarianism, military takeover, economic efficiency, globali- sation, Egypt Introduction It is not surprising that in five years none of the revolutions of the Arab Spring has solved any urgent issues. Unfortunately, this was probably never a possibility. Various studies suggest a link between 110 preview version revolutions and the degree of modernisation of a society.1 Our research reveals that the very processes of modernisation, regardless of the level of consumption and the rate of population growth, is closely and organically linked to the risk of social and political upheaval, which can Leonid E. -
Afrasian Instability Zone and Its Historical Background*
Afrasian Instability Zone and Its Historical Background* Andrey Korotayev, Leonid Issaev, Maria Rudenko, Alisa Shishkina, and Evgeny Ivanov National Research University Higher School of Economics, Moscow ABSTRACT The evolution of the Afroeurasian world-system which in the ‘long 16th century’ was transformed into the global World System com- prised both economic and political components, some of which are discussed in the present article. Earlier research has identified four major zones of instability which can be designated as the Cen- tral Asian (including Afghanistan and Pakistan), the Middle East, North Africa, and the Sahel region. We suggest considering these four zones as a single Afrasian macrozone of instability. We show that this zone correlates rather closely with the zone of traditional prevalence of the parallel cousin marriage, as well as with the zone of very low female labor force participation rate, and the ter- ritory of the Umayyad Califate. The article demonstrates that this correlation is not coincidental and also discusses the factors and mechanisms that have produced it. INTRODUCTION The evolution of the Afroeurasian world-system that in the ‘long 16th century’ transformed into the global World System (see, e.g., Grinin and Korotayev 2014) had not only economic but also political components some of which will be discussed in the present article. In his article ‘Regional Instability Zones’ Konstantin Truev- tsev (2014) has identified five major zones of instability that can be Social Evolution & History, Vol. 15 No. 2, September 2016 120–140 2016 ‘Uchitel’ Publishing House 120 Korotayev et al. / Afrasian Instability Zone and Its Historical Background 121 designated as the Central Asian (including Afghanistan and Paki- stan), the Middle East, North Africa, the Sahel region and the Pa- cific. -
Functional Replacement of a Primary Metabolic Pathway Via Multiple Independent Eukaryote-To-Eukaryote Gene Transfers and Selective Retention
doi: 10.1111/j.1420-9101.2009.01797.x Functional replacement of a primary metabolic pathway via multiple independent eukaryote-to-eukaryote gene transfers and selective retention A. M. NEDELCU, A. J. C. BLAKNEY & K. D. LOGUE Biology Department, University of New Brunswick, Fredericton, NB, Canada Keywords: Abstract ammonium transporter; Although lateral gene transfer (LGT) is now recognized as a major force in the glutamate synthase; evolution of prokaryotes, the contribution of LGT to the evolution and glutamine synthetase; diversification of eukaryotes is less understood. Notably, transfers of complete lateral gene transfer; pathways are believed to be less likely between eukaryotes, because the Monosiga; successful transfer of a pathway requires the physical clustering of functionally primary metabolic pathway. related genes. Here, we report that in one of the closest unicellular relatives of animals, the choanoflagellate, Monosiga, three genes whose products work together in the glutamate synthase cycle are of algal origin. The concerted retention of these three independently acquired genes is best explained as the consequence of a series of adaptive replacement events. More generally, this study argues that (i) eukaryote-to-eukaryote transfers of entire metabolic pathways are possible, (ii) adaptive functional replacements of primary pathways can occur, and (iii) functional replacements involving eukaryotic genes are likely to have also contributed to the evolution of eukaryotes. Lastly, these data underscore the potential contribution of algal genes to the evolution of nonphotosynthetic lineages. Palmer, 2008). On the other hand, as functional replace- Introduction ments can be either adaptive or selectively neutral, their Lateral gene transfer (LGT) is currently recognized as a impact on the recipient’s adaptive or long-term evolu- major force in the evolution of prokaryotes (e.g. -
What Is Macroevolution?
[Palaeontology, 2020, pp. 1–11] FRONTIERS IN PALAEONTOLOGY WHAT IS MACROEVOLUTION? by MICHAEL HAUTMANN Pal€aontologisches Institut und Museum, Universit€at Zurich,€ Karl-Schmid Strasse 4, 8006 Zurich,€ Switzerland; [email protected] Typescript received 14 June 2019; accepted in revised form 15 October 2019 Abstract: Definitions of macroevolution fall into three cat- intraspecific competition as a mediator between selective egories: (1) evolution of taxa of supraspecific rank; (2) evolu- agents and evolutionary responses. This mediating role of tion on the grand time-scale; and (3) evolution that is guided intraspecific competition occurs in the presence of sexual by sorting of interspecific variation (as opposed to sorting of reproduction and has therefore no analogue at the macroevo- intraspecific variation in microevolution). Here, it is argued lutionary level where species are the evolutionary units. Com- that only definition 3 allows for a consistent separation of petition between species manifests both on the macroevolution and microevolution. Using this definition, spe- microevolutionary and macroevolutionary level, but with dif- ciation has both microevolutionary and macroevolutionary ferent effects. In microevolution, interspecific competition aspects: the process of morphological transformation is spurs evolutionary divergence, whereas it is a potential driver microevolutionary, but the variation among species that it pro- of extinction at the macroevolutionary level. Recasting the Red duces is macroevolutionary, as is the rate at which speciation Queen hypothesis in a macroevolutionary framework suggests occurs. Selective agents may have differential effects on that the effects of interspecific competition result in a positive intraspecific and interspecific variation, with three possible sit- correlation between origination and extinction rates, confirm- uations: effect at one level only, effect at both levels with the ing empirical observations herein referred to as Stanley’s rule. -
Evolution: from Big Bang to Nanorobots Grinin, Leonid; Korotayev, Andrey
www.ssoar.info Evolution: From Big Bang to Nanorobots Grinin, Leonid; Korotayev, Andrey Veröffentlichungsversion / Published Version Sammelwerk / collection Empfohlene Zitierung / Suggested Citation: Grinin, L., & Korotayev, A. (2015). Evolution: From Big Bang to Nanorobots. Volgograd: Uchitel Publishing House. https://nbn-resolving.org/urn:nbn:de:0168-ssoar-57761-1 Nutzungsbedingungen: Terms of use: Dieser Text wird unter einer Basic Digital Peer Publishing-Lizenz This document is made available under a Basic Digital Peer zur Verfügung gestellt. Nähere Auskünfte zu den DiPP-Lizenzen Publishing Licence. For more Information see: finden Sie hier: http://www.dipp.nrw.de/lizenzen/dppl/service/dppl/ http://www.dipp.nrw.de/lizenzen/dppl/service/dppl/ RUSSIAN ACADEMY OF SCIENCES INSTITUTE OF ORIENTAL STUDIES The Eurasian Center for Big History and System Forecasting VOLGOGRAD CENTER FOR SOCIAL RESEARCH EVOLUTION From Big Bang to Nanorobots Edited by Leonid E. Grinin and Andrey V. Korotayev ‘Uchitel’ Publishing House Volgograd ББК 28.02 87.21 ‘Evolution’ Yearbook Editors Council: H. Barry III (USA), Yu. Е. Berezkin (Russia), M. L. Butovskaya (Russia), R. L. Carneiro (USA), Ch. Chase-Dunn (USA), V. V. Chernykh (Russia), H. J. M. Claessen (Netherlands), D. Christian (Australia), S. Gavrilets (USA), А. V. Dybo (Russia), K. Yu. Es'kov (Russia), I. V. Ilyin (Russia), N. N. Iordansky (Russia), P. Herrmann (Ireland), A. A. Kazankov (Russia), E. S. Kul'pin (Russia), G. G. Malinetsky (Russia), A. V. Markov (Russia), A. Yu. Militarev (Russia), M. V. Mina (Russia), V. de Munck (USA), А. P. Nazaretyan (Russia), E. B. Nay- mark (Russia), A. D. Panov (Russia), Zh. I. Reznikova (Russia), B. -
S41467-021-25308-W.Pdf
ARTICLE https://doi.org/10.1038/s41467-021-25308-w OPEN Phylogenomics of a new fungal phylum reveals multiple waves of reductive evolution across Holomycota ✉ ✉ Luis Javier Galindo 1 , Purificación López-García 1, Guifré Torruella1, Sergey Karpov2,3 & David Moreira 1 Compared to multicellular fungi and unicellular yeasts, unicellular fungi with free-living fla- gellated stages (zoospores) remain poorly known and their phylogenetic position is often 1234567890():,; unresolved. Recently, rRNA gene phylogenetic analyses of two atypical parasitic fungi with amoeboid zoospores and long kinetosomes, the sanchytrids Amoeboradix gromovi and San- chytrium tribonematis, showed that they formed a monophyletic group without close affinity with known fungal clades. Here, we sequence single-cell genomes for both species to assess their phylogenetic position and evolution. Phylogenomic analyses using different protein datasets and a comprehensive taxon sampling result in an almost fully-resolved fungal tree, with Chytridiomycota as sister to all other fungi, and sanchytrids forming a well-supported, fast-evolving clade sister to Blastocladiomycota. Comparative genomic analyses across fungi and their allies (Holomycota) reveal an atypically reduced metabolic repertoire for sanchy- trids. We infer three main independent flagellum losses from the distribution of over 60 flagellum-specific proteins across Holomycota. Based on sanchytrids’ phylogenetic position and unique traits, we propose the designation of a novel phylum, Sanchytriomycota. In addition, our results indicate that most of the hyphal morphogenesis gene repertoire of multicellular fungi had already evolved in early holomycotan lineages. 1 Ecologie Systématique Evolution, CNRS, Université Paris-Saclay, AgroParisTech, Orsay, France. 2 Zoological Institute, Russian Academy of Sciences, St. ✉ Petersburg, Russia. 3 St. -
Master Document Template
Copyright by Benjamin Joseph Liebeskind 2014 The Dissertation Committee for Benjamin Joseph Liebeskind Certifies that this is the approved version of the following dissertation: Ion Channels and the Tree of Life Committee: Harold Zakon, Supervisor David Hillis, Co-Supervisor Richard Aldrich Hans Hofmann Mikhail Matz Ion Channels and the Tree of Life by Benjamin Joseph Liebeskind, B.A. Dissertation Presented to the Faculty of the Graduate School of The University of Texas at Austin in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy The University of Texas at Austin December 2014 Dedication For my father, John. Acknowledgements I would first of all like to acknowledge my advisors Harold Zakon and David Hillis for their guidance, support, and, especially, for the excellent example they set as scientists, scholars, thinkers, and teachers. I also thank my committee members, Richard Aldrich, Hans Hofmann, and Mikhail Matz for their advice and support on this dissertation and on my personal development as a scientist. The members of the Zakon and Hillis labs from 2009 – 2014 have been a wonderful source of feedback and support over the years. I would especially like to acknowledge Thomas Keller, Emily-Jane McTavish, April Wright, Alfredo Ghezzi, Kristin Koenig and Ammon Thompson. This dissertation relied largely on computational skills that I did not possess when I began it. Several individuals put aside time to bring me up to speed, but I would most of all like to acknowledge James Derry, who devotes a huge portion of his own time to helping scientists learn about programming. Finally, I thank my family for their care and support. -
A Flagellate-To-Amoeboid Switch in the Closest Living Relatives of Animals
RESEARCH ARTICLE A flagellate-to-amoeboid switch in the closest living relatives of animals Thibaut Brunet1,2*, Marvin Albert3, William Roman4, Maxwell C Coyle1,2, Danielle C Spitzer2, Nicole King1,2* 1Howard Hughes Medical Institute, Chevy Chase, United States; 2Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, United States; 3Department of Molecular Life Sciences, University of Zu¨ rich, Zurich, Switzerland; 4Department of Experimental and Health Sciences, Pompeu Fabra University (UPF), CIBERNED, Barcelona, Spain Abstract Amoeboid cell types are fundamental to animal biology and broadly distributed across animal diversity, but their evolutionary origin is unclear. The closest living relatives of animals, the choanoflagellates, display a polarized cell architecture (with an apical flagellum encircled by microvilli) that resembles that of epithelial cells and suggests homology, but this architecture differs strikingly from the deformable phenotype of animal amoeboid cells, which instead evoke more distantly related eukaryotes, such as diverse amoebae. Here, we show that choanoflagellates subjected to confinement become amoeboid by retracting their flagella and activating myosin- based motility. This switch allows escape from confinement and is conserved across choanoflagellate diversity. The conservation of the amoeboid cell phenotype across animals and choanoflagellates, together with the conserved role of myosin, is consistent with homology of amoeboid motility in both lineages. We hypothesize that -
9 Mathematical Modeling of Biological and Social Phases of Big History
9 Mathematical Modeling of Biological and Social Phases of Big History Andrey V. Korotayev and Alexander V. Markov Abstract The present article demonstrates that changes in biodiversity through the Phanerozoic correlate with a hyperbolic model (widely used in demography and macrosociology) much more strongly than with exponential and logistic models (traditionally used in population biology and extensively applied to fossil biodi- versity as well). The latter models imply that changes in diversity are guided by a first-order positive feedback (more ancestors – more descendants) and/or a negative feedback arising from resource limitation. The hyperbolic model im- plies a second-order positive feedback. The authors demonstrate that the hyper- bolic pattern of the world population growth arises from a second-order positive feedback between the population size and the rate of technological growth (this can also be identified with the collective learning mechanism). The feedback between the diversity and community structure complexity can also contribute to the hyperbolic character of biodiversity. This suggests that some mechanisms vaguely resembling the collective learning might have operated throughout the biological phase of Big History. Our findings suggest that we can trace rather similar macropatterns within both the biological and social phases of Big History which one can describe in a rather accurate way with very simple mathematical models. Keywords: biological phase of Big History, social phase of Big History, mathe- matical modeling, -
Introduction: from Big Bang to Galactic Civilizations
www.ssoar.info Introduction: From Big Bang to Galactic Civilizations - An Introduction to Big History Grinin, Leonid; Rodrigue, Barry; Korotayev, Andrey Veröffentlichungsversion / Published Version Sammelwerksbeitrag / collection article Empfohlene Zitierung / Suggested Citation: Grinin, L., Rodrigue, B., & Korotayev, A. (2015). Introduction: From Big Bang to Galactic Civilizations - An Introduction to Big History. In From Big Bang to Galactic Civilizations: A Big History Anthology (pp. 1-16). Primus Books. https:// nbn-resolving.org/urn:nbn:de:0168-ssoar-57736-1 Nutzungsbedingungen: Terms of use: Dieser Text wird unter einer Basic Digital Peer Publishing-Lizenz This document is made available under a Basic Digital Peer zur Verfügung gestellt. Nähere Auskünfte zu den DiPP-Lizenzen Publishing Licence. For more Information see: finden Sie hier: http://www.dipp.nrw.de/lizenzen/dppl/service/dppl/ http://www.dipp.nrw.de/lizenzen/dppl/service/dppl/ Introduction n From Big Bang to Galactic Civilizations An Introduction to Big History BARRY RODRIGUE, LEONID GRININ and ANDREY KOROTAYEV n ACH SCIENTIFIC STUDY emerges in its own particular time and marks a new step in the development of human thought.1 Big E History materialized to satisfy the human need for a unified vision of our existence. It came together in the waning decades of the twentieth century, in part, as a reaction to the specialization of scholarship and education that had taken hold around the world. While this specialization had great results, it created barriers that stood in contrast to a growing unity among our global communities. These barriers were increasingly awkward to bridge, and, thus, Big History emerged as a successful new framework. -
Kelvin A. Santiago-Valles
1 Curriculum Vita (June, 2018) Kelvin A. Santiago-Valles Professor of Sociology, Latin American and Caribbean Area Studies, and Africana Studies, Binghamton University- SUNY, Binghamton, NY 13902-6000 E-mail: [email protected] ; home phone/fax: (607) 724-4999 Department secretaries: (607) 777-2628, 777-5030; fax-Sociology Dept.: (607) 777-4197 ACADEMIC DEGREES: Ph.D., Sociology (1980) B.A. History (1973) The Union Institute Goddard College 440 Mac Millan St. Plainfield, VT 05667 Cincinnati, OH 45206-1947 OVERLAPPING FIELDS OF INTEREST (RESEARCH/ TEACHING): World-systems analyses, focusing on: global labor-racial formation, subaltern social movements, as well as critiques of coloniality, political economy, and knowledge structures, and regulatory apparatuses (penal discipline and police surveillance in particular); Caribbean, Latin American, and U.S. Latina/o studies; the African diaspora and critical race theories/ critical legal studies; urban studies, visual culture, and the social production of space; gender and sexuality. CURRENT RESEARCH: World-historical transformation (from 1650s to the present) of, as well as the conflicts between: (1) the political economy of European and Euro-North-American forms of sexually racialized social regulation and (2) racially-configured class formation in the Atlantic, in particular among Puerto Ricans in the Caribbean and in the United States. PUBLICATIONS: A. Books. “Subject People” and Colonial Discourses: Economic Transformation and Social Disorder in Puerto Rico, 1898-1947 (Albany: State University of New York Press, 1994) Rethinking “Race,” Labor, and Empire: Global-Racial Regimes and “Primitive” Accumulation in the Historical Long-Term (book manuscript under revision for publication) Race Making in World-Historical Perspective: Social Regulation in the Spanish Atlantic, 1650s-1920s (book in preparation) B.