WorldWideScience

Sample records for mathematics genealogy project

  1. The Astronomy Genealogy Project

    Science.gov (United States)

    Tenn, Joseph S.

    2014-01-01

    The Astronomy Genealogy Project, to be known as AstroGen, will list as many as possible of the world's astronomers with their academic parents (aka thesis advisors) and enable the reader to trace both academic ancestors and descendants. It will be very similar to the highly successful Mathematics Genealogy Project (MGP), available at http://genealogy.math.ndsu.nodak.edu. The MGP, which has been in operation since 1996, now contains the names of about 170,000 "mathematicians." These include many physicists and astronomers, as well as practitioners of related sciences. Mitchel Keller, the director of the MGP, has generously shared the software used in that project, and the American Astronomical Society (AAS) will host AstroGen, a project of the Historical Astronomy Division, on its website. We expect to start seeking entries soon, depending on the availability of computational assistance from the AAS IT department. We are seeking volunteers to help run the project. If you are interested, please contact me at joe.tenn@sonoma.edu.

  2. The Astronomy Genealogy Project: A Progress Report

    Science.gov (United States)

    Tenn, Joseph S.

    2016-01-01

    Although it is not yet visible, much progress has been made on the Astronomy Genealogy Project (AstroGen) since it was accepted as a project of the Historical Astronomy Division (HAD) three years ago. AstroGen will list the world's astronomers with information about their highest degrees and advisors. (In academic genealogy, your thesis advisor is your parent.) A small group (the AstroGen Team) has compiled a database of approximately 12,000 individuals who have earned doctorates with theses (dissertations) on topics in astronomy, astrophysics, cosmology, or planetary science. These include nearly all those submitted in Australia, Canada, the Netherlands, and New Zealand, and most of those in the United States (all through 2014 for most universities and all through 1990 for all). We are compiling more information than is maintained by the Mathematics Genealogy Project (MGP). In addition to name, degree, university, year of degree, and thesis advisor(s), all provided by MGP as well, we are including years of birth and death when available, mentors in addition to advisors, and links to the thesis when it is online and to the person's web page or obituary, when we can find it. We are still struggling with some questions, such as the boundaries of inclusion and whether or not to include subfields of astronomy. We believe that AstroGen will be a valuable resource for historians of science as well as a source of entertainment for those who like to look up their academic family trees. A dedicated researcher following links from AstroGen will be able to learn quite a lot about the careers of astronomy graduates of a particular university, country, or era. We are still seeking volunteers to enter the graduates of one or more universities.

  3. Introducing AstroGen: The Astronomy Genealogy Project

    OpenAIRE

    Tenn, Joseph S.

    2016-01-01

    The Astronomy Genealogy Project ("AstroGen"), a project of the Historical Astronomy Division of the American Astronomical Society (AAS), will soon appear on the AAS website. Ultimately, it will list the world's astronomers with their highest degrees, theses for those who wrote them, academic advisors (supervisors), universities, and links to the astronomers or their obituaries, their theses when on-line, and more. At present the AstroGen team is working on those who earned doctorates with ast...

  4. Introducing AstroGen: the Astronomy Genealogy Project

    Science.gov (United States)

    Tenn, Joseph S.

    2016-12-01

    The Astronomy Genealogy Project (AstroGen), a project of the Historical Astronomy Division of the American Astronomical Society (AAS), will soon appear on the AAS website. Ultimately, it will list the world's astronomers with their highest degrees, theses for those who wrote them, academic advisors (supervisors), universities, and links to the astronomers or their obituaries, their theses when online, and more. At present the AstroGen team is working on those who earned doctorates with astronomy-related theses. We show what can be learned already, with just ten countries essentially completed.

  5. Creation of a national resource with linked genealogy and phenotypic data: the Veterans Genealogy Project.

    Science.gov (United States)

    Cannon-Albright, Lisa A; Dintelman, Sue; Maness, Tim; Backus, Steve; Thomas, Alun; Meyer, Laurence J

    2013-07-01

    Creation of a genealogy of the United States and its ancestral populations is under way. When complete, this US genealogy will be record linked to the National Veteran's Health Administration medical data representing more than 8 million US veterans. Genealogical data are gathered from public sources, primarily the Internet. Record linking using data from relatives is accomplished to integrate multiple data sources and then to link genealogical data to the veteran's demographic data. This resource currently includes genealogy for more than 22 million individuals representing the Intermountain West and the East Coast. The demographic data for more than 40,000 veteran patients using Veterans Hospital Administration services in Utah and Massachusetts have already been record linked. The resource is only in its second year of creation and already represents the largest such combination of genealogy and medical data in the world. The data sources, the creation of the genealogy, record-linking methods and results, proposed genetic analyses, and future directions are discussed.

  6. The Critical Purchase of Genealogy: Critiquing Student Participation Projects

    Science.gov (United States)

    Anderson, Anna

    2015-01-01

    Until recently the dominant critique of "student participation" projects was one based on the theoretical assumptions of critical theory in the form of critical pedagogy. Over the last decade, we have witnessed the emergence of a critical education discourse that theorises and critically analyses such projects using Foucault's notion of…

  7. [Genetic aspects of genealogy].

    Science.gov (United States)

    Tetushkin, E Iu

    2011-11-01

    The supplementary historical discipline genealogy is also a supplementary genetic discipline. In its formation, genetics borrowed from genealogy some methods of pedigree analysis. In the 21th century, it started receiving contribution from computer-aided genealogy and genetic (molecular) genealogy. The former provides novel tools for genetics, while the latter, which employing genetic methods, enriches genetics with new evidence. Genealogists formulated three main laws ofgenealogy: the law of three generations, the law of doubling the ancestry number, and the law of declining ancestry. The significance and meaning of these laws can be fully understood only in light of genetics. For instance, a controversy between the exponential growth of the number of ancestors of an individual, i.e., the law of doubling the ancestry number, and the limited number of the humankind is explained by the presence of weak inbreeding because of sibs' interference; the latter causes the pedigrees' collapse, i.e., explains also the law of diminishing ancestry number. Mathematic modeling of pedigrees' collapse presented in a number of studies showed that the number of ancestors of each individual attains maximum in a particular generation termed ancestry saturated generation. All representatives of this and preceding generation that left progeny are common ancestors of all current members of the population. In subdivided populations, these generations are more ancient than in panmictic ones, whereas in small isolates and social strata with limited numbers of partners, they are younger. The genealogical law of three generations, according to which each hundred years contain on average three generation intervals, holds for generation lengths for Y-chromosomal DNA, typically equal to 31-32 years; for autosomal and mtDNA, this time is somewhat shorter. Moving along ascending lineas, the number of genetically effective ancestors transmitting their DNA fragment to descendants increases far

  8. The Astronomy Genealogy Project: It's more than just tracing your ancestry

    Science.gov (United States)

    Tenn, Joseph S.; AstroGen Team

    2017-01-01

    The Astronomy Genealogy Project ("AstroGen"), a project of the Historical Astronomy Division (HAD), will soon appear on the AAS website (https://astrogen.aas.org/). Ultimately, it will list the world's astronomers with their highest degrees, titles of theses for those who wrote them, academic advisors, universities, and links to the astronomers or their obituaries, their theses when online, and more. At present the AstroGen team is working on those who earned doctorates with astronomy-related theses. We show what can be learned already, with twelve countries essentially complete and about 19,000 theses recorded. For the twelve countries—Australia, Canada, Chile, Ireland, the Netherlands, New Zealand, Norway, South Africa, Spain, Sweden, the United Kingdom, and the United States—half of the theses have been submitted since 1999, and more than 60% are online. We will present information comparing countries, universities, and eras. Nearly all information has been gathered online, and there is much more available. We are seeking people with knowledge of the languages and academic cultures of other countries to join us.

  9. Genealogy Remediated

    DEFF Research Database (Denmark)

    Marselis, Randi

    2007-01-01

    Genealogical websites are becoming an increasingly popular genre on the Web. This chapter will examine how remediation is used creatively in the construction of family history. While remediation of different kinds of old memory materials is essential in genealogy, digital technology opens new...... possibilities. Genealogists use their private websites to negotiate family identity and hereby create a sense of belonging in an increasingly complex society. Digital technologies enhance the possibilities of coorporation between genealogists. Therefore, the websites are also used to present archival...

  10. Logistics of Mathematical Modeling-Focused Projects

    Science.gov (United States)

    Harwood, R. Corban

    2018-01-01

    This article addresses the logistics of implementing projects in an undergraduate mathematics class and is intended both for new instructors and for instructors who have had negative experiences implementing projects in the past. Project implementation is given for both lower- and upper-division mathematics courses with an emphasis on mathematical…

  11. The New Genealogy

    Science.gov (United States)

    Roach, Ronald

    2008-01-01

    This article reports on developments of genealogy such as the Free African Americans Web site and the genetic ancestry tracing which point to what can be called the "new genealogy." Encouraged by the Internet's unlimited capacity as an accessible publishing space, the new genealogy has seen the unprecedented growth of genealogical research…

  12. Status Report: Mathematics Curriculum-Development Projects Today

    Science.gov (United States)

    Arithmetic Teacher, 1972

    1972-01-01

    Brief reports on the Cambridge Conference on School Mathematics, Comprehensive School Mathematics Program, Computer-Assisted Instruction Projects at Stanford, Individually Prescribed Instruction Project, The Madison Project, Mathematics/Science Learning System, MINNEMAST, and School Mathematics Study Group. (MM)

  13. Using maps in genealogy

    Science.gov (United States)

    ,

    2002-01-01

    In genealogical research, maps can provide clues to where our ancestors may have lived and where to look for written records about them. Beginners should master basic genealogical research techniques before starting to use topographic maps.

  14. An Archaeological/Genealogical Historical Analysis of The National Council of Teachers of Mathematics' Standards Documents

    Science.gov (United States)

    Bullock, Erika Catherine

    2013-01-01

    Since the mid-20th century in the United States, there have been several reform movements within mathematics education; each movement has been subject to its own unique socio-cultural and -political forces. The National Council of Teachers of Mathematics' (NCTM) Standards documents--"Curriculum and Evaluation Standards for School…

  15. Genealogy and Educational Research

    Science.gov (United States)

    Christensen, Gerd

    2016-01-01

    The aim of this paper was to demonstrate how genealogy can be used as a method for critical education research. As Foucault emphasized, genealogy is a method for identifying the way in which the individuals are subjectified through discourse. The genealogical analysis in the article defines two mayor tendencies in contemporary Danish pedagogy:…

  16. Genealogy and educational research

    DEFF Research Database (Denmark)

    Christensen, Gerd

    2016-01-01

    The aim of this paper was to demonstrate how genealogy can be used as a method for critical education research. As Foucault emphasized, genealogy is a method for identifying the way in which the individuals are subjectified through discourse. The genealogical analysis in the article defines two...

  17. Teaching mathematical modelling through project work

    DEFF Research Database (Denmark)

    Blomhøj, Morten; Kjeldsen, Tinne Hoff

    2006-01-01

    are reported in manners suitable for internet publication for colleagues. The reports and the related discussions reveal interesting dilemmas concerning the teaching of mathematical modelling and how to cope with these through “setting the scene” for the students modelling projects and through dialogues......The paper presents and analyses experiences from developing and running an in-service course in project work and mathematical modelling for mathematics teachers in the Danish gymnasium, e.g. upper secondary level, grade 10-12. The course objective is to support the teachers to develop, try out...... in their own classes, evaluate and report a project based problem oriented course in mathematical modelling. The in-service course runs over one semester and includes three seminars of 3, 1 and 2 days. Experiences show that the course objectives in general are fulfilled and that the course projects...

  18. Film Noir Style Genealogy

    OpenAIRE

    Rietuma, Dita

    2012-01-01

    Annotation for the Doctoral Work Film Noir Style Genealogy (The Genealogy of the Film Noir Style) The doctoral work topic Film Noir Style Genealogy encompasses traditionally approved world film theory views on the concept of film noir and its related cinematographic heritage, and an exploration of its evolution and distinctive style, including – the development of film noir in the USA, Europe, and also in Latvia, within the context of both socio-political progression and the paradigm of m...

  19. Mathematical Modeling Projects: Success for All Students

    Science.gov (United States)

    Shelton, Therese

    2018-01-01

    Mathematical modeling allows flexibility for a project-based experience. We share details of our regular capstone course, successful for virtually 100% of our math majors for almost two decades. Our research-like approach in this course accommodates a variety of student backgrounds and interests, and has produced some award-winning student…

  20. Witchcraft, genealogy, Foucault.

    Science.gov (United States)

    Russell, S

    2001-03-01

    This paper is a genealogical reflection on both the historiography of European witchcraft and the dynamics of witchcraft trials. I argue that traditional scholarly assumptions about the 'unsophisticated' nature of early modern European mentalities result in inadequate representations of accused witches and of the social contexts and processes of the trials. Genealogy, by contrast, problematizes fundamental notions such as reason, order, power and progress in ways that not only provide a different range of effective tools for the analysis of belief in witchcraft, but also underline its crucial significance for social theory. In the final section, an analysis of a typical trial is undertaken employing key genealogical insights into confession, torture, truth, governmentality, power, pleasure and pain.

  1. Modeling the genealogy of a cultural trait.

    Science.gov (United States)

    Aguilar, Elliot; Ghirlanda, Stefano

    2015-05-01

    The mathematical study of genealogies has yielded important insights in population biology, such as the ability to estimate the time to the most recent common ancestor (MRCA) of a sample of genetic sequences or of a group of individuals. Here we introduce a model of cultural genealogies that is a step toward answering similar questions for cultural traits. In our model individuals can inherit from a variable, potentially large number of ancestors, rather than from a fixed, small number of ancestors (one or two) as is typical of genetic evolution. We first show that, given a sample of individuals, a cultural common ancestor does not necessarily exist. We then introduce a related concept: the most recent unique ancestor (MRUA), i.e., the most recent single individual who is the earliest cultural ancestor of the sample. We show that, under neutral evolution, the time to the MRUA can be staggeringly larger than the time to MRCA in a single ancestor model, except when the average number of learning opportunities per individuals is small. Our results point out that the properties of cultural genealogies may be very different from those of genetic genealogies, with potential implications for reconstructing the histories of cultural traits. Copyright © 2014 Elsevier Inc. All rights reserved.

  2. Foucault, Maoism, Genealogy

    DEFF Research Database (Denmark)

    Karlsen, Mads Peter; Villadsen, Kaspar

    2015-01-01

    and his critique of “totalizing institutions,” “uniform discourse” and “juridical universality.” The second part of the article offers a close reading of Foucault’s reflections on genealogy in his 1976 lecture series which demonstrates how the Maoist activist principles noticeably resonate...... often portrayed as unambiguously negative. And third, the goal is to demonstrate how principles developed in Maoist political activism are not only realized in Foucault’s activities within the GIP, but also in his lecture-hall formulations of genealogy, power, and critique....

  3. Leading Undergraduate Research Projects in Mathematical Modeling

    Science.gov (United States)

    Seshaiyer, Padmanabhan

    2017-01-01

    In this article, we provide some useful perspectives and experiences in mentoring students in undergraduate research (UR) in mathematical modeling using differential equations. To engage students in this topic, we present a systematic approach to the creation of rich problems from real-world phenomena; present mathematical models that are derived…

  4. Connecting Mathematics in Primary Science Inquiry Projects

    Science.gov (United States)

    So, Winnie Wing-mui

    2013-01-01

    Science as inquiry and mathematics as problem solving are conjoined fraternal twins attached by their similarities but with distinct differences. Inquiry and problem solving are promoted in contemporary science and mathematics education reforms as a critical attribute of the nature of disciplines, teaching methods, and learning outcomes involving…

  5. Project-Based Learning and Design-Focused Projects to Motivate Secondary Mathematics Students

    Science.gov (United States)

    Remijan, Kelly W.

    2017-01-01

    This article illustrates how mathematics teachers can develop design-focused projects, related to project-based learning, to motivate secondary mathematics students. With first-hand experience as a secondary mathematics teacher, I provide a series of steps related to the engineering design process, which are helpful to teachers in developing…

  6. The influence of Missouri mathematics project on seventh grade students’ mathematical understanding ability

    Science.gov (United States)

    Rezeki, S.; Setyawan, A. A.; Amelia, S.

    2018-01-01

    Mathematical understanding ability is a primary goal of Indonesian national education goals. However, various sources has shown that Indonesian students’ mathematical understanding ability is still relatively low. This study used quasi-experimental research design to examine the effectiveness of the application of Missouri Mathematics Project (MMP) on students’ mathematical understanding ability. The participants of the study were seventh grade students in Pekanbaru, Riau Province, Indonesia. They were selected purposively and represented as high, medium, and low-quality schools. The result of this study indicated that there was a significant effect of MMP on the overall students’ mathematical understanding ability and in all categories, except for low school level.

  7. Foucault's genealogy of Christianity

    OpenAIRE

    Chrulew, Matthew Nikolai

    2017-01-01

    This thesis is an exploration of Michel Foucault's genealogy of Christianity. I argue that this important and under-appreciated aspect of his work is strongly influenced by Nietzsche's own anti-Christian writings on asceticism, priestly power and the death of God. Based on the texts currently available, I explicate in detail Foucault's perpetual and often ambivalent return to the confessional and pastoral apparatuses of the Church. I also explore how this work might relate to broader and incr...

  8. Digitization Projects Carried out by the Mathematical Institute Belgrade

    OpenAIRE

    Ognjanovič, Zoran; Mijajlovič, Žarco

    2004-01-01

    In this paper some current digitization projects carried out by the Mathematical Institute of Serbian Academy of Science and Arts Belgrade and the Faculty of Mathematics Belgrade are described. The projects concern developing of a virtual library of retro-digitized books and an Internet data base and presentation of electronic editions of some leading Serbian journals in science and arts, and the work on the South-Eastern European Digitization Initiative (SEEDI).

  9. Til kulturhistoriens genealogi

    Directory of Open Access Journals (Sweden)

    Tine Damsholt

    2010-11-01

    Full Text Available Hvad er kulturhistorie? Dette retoriske spørgsmål stillede en af dansk kulturhistories faddere Troels Troels-Lund allerede på tærsklen til det 20. århundrede og gav sit eget veloplagte og polemiske svar, hvor han hyldede dagliglivets historie frem for staternes og krigenes historie. Men er dette svar - såvel som spørgsmålet - stadig relevant i det 21. århundrede? I det følgende skal vi se lidt nærmere på, hvad det særligt er kulturhistorie kan, og hvorvidt og hvordan den adskiller sigfra den almindelige historie.Abstract: The Genealogy of Cultural HistoryWhat is cultural history? The paper discusses whether cultural history still should be defined by having a specific empirical object such as the history of everyday life. Taking the point of departure in the current mainstreaming of cultural history and topics outside political history within the discipline of history after the cultural turn, it is argued that cultural history should rather be a specific analytical strategy. The paper investigates the Foucauldian notion of genealogy or "history of the present" and proposes an understanding of cultural history asan analytical strategy that seeks to destabilize a present that has forgotten its contingency and the time-bound questions that gave rise to its beliefs and practices. Genealogy is therefore about tracing the heterogeneous pathways that led to the apparent solidity of the present. A first sketch to a genealogy of cultural history in Denmark is given through a discussion of the canonized text by T. Troels-Lund, On Cultural History from 1894. The idea of everyday life as the analytical and defining object of cultural history is constituted in this text as well as in the disciplinary battles that formed the situational background for Troels-Lunds argument. Instead of taking this situated definition for a given fact cultural history is - in the tradition from Foucault - understood as a critical, destabilizing and thus self

  10. Simulation of selected genealogies.

    Science.gov (United States)

    Slade, P F

    2000-02-01

    Algorithms for generating genealogies with selection conditional on the sample configuration of n genes in one-locus, two-allele haploid and diploid models are presented. Enhanced integro-recursions using the ancestral selection graph, introduced by S. M. Krone and C. Neuhauser (1997, Theor. Popul. Biol. 51, 210-237), which is the non-neutral analogue of the coalescent, enables accessible simulation of the embedded genealogy. A Monte Carlo simulation scheme based on that of R. C. Griffiths and S. Tavaré (1996, Math. Comput. Modelling 23, 141-158), is adopted to consider the estimation of ancestral times under selection. Simulations show that selection alters the expected depth of the conditional ancestral trees, depending on a mutation-selection balance. As a consequence, branch lengths are shown to be an ineffective criterion for detecting the presence of selection. Several examples are given which quantify the effects of selection on the conditional expected time to the most recent common ancestor. Copyright 2000 Academic Press.

  11. The effect of Missouri mathematics project learning model on students’ mathematical problem solving ability

    Science.gov (United States)

    Handayani, I.; Januar, R. L.; Purwanto, S. E.

    2018-01-01

    This research aims to know the influence of Missouri Mathematics Project Learning Model to Mathematical Problem-solving Ability of Students at Junior High School. This research is a quantitative research and uses experimental research method of Quasi Experimental Design. The research population includes all student of grade VII of Junior High School who are enrolled in the even semester of the academic year 2016/2017. The Sample studied are 76 students from experimental and control groups. The sampling technique being used is cluster sampling method. The instrument is consisted of 7 essay questions whose validity, reliability, difficulty level and discriminating power have been tested. Before analyzing the data by using t-test, the data has fulfilled the requirement for normality and homogeneity. The result of data shows that there is the influence of Missouri mathematics project learning model to mathematical problem-solving ability of students at junior high school with medium effect.

  12. Genealogies of Modern Technology

    DEFF Research Database (Denmark)

    Riis, Søren

    2008-01-01

    Does modern technology differ from ancient technology and does it have a unique essence? This twofold question opens one of Martin Heidegger's most influential philosophical inquiries, The Question Concerning Technology. The answer Heidegger offers has inspired various critiques and appraisals from...... a vast number of contemporary scholars of technology.1 Heidegger's answer is traditionally thought to suggest a great difference between ancient and modern technology. However, by re-examining Heidegger's text, it is possible to discover previously ignored or misunderstood lines of thoughts that affirm...... a multi-stable interpretation of the origin of modern technology. In what follows, we shall see how The Question Concerning Technology in fact supports three different genealogies of modern technology...

  13. Preserving local writers, genealogy, photographs, newspapers, and related materials

    CERN Document Server

    Smallwood, Carol

    2012-01-01

    Preserving Local Writers, Genealogy, Photographs, Newspapers, and Related Materials draws on the practical knowledge of archivists, preservationists, librarians, and others who share the goal of making local history accessible to future generations. Anyone who plans to start a local history project or preserve important historical materials will find plenty of tips, techniques, sample documents, project ideas, and inspiration in its pages.

  14. Mathematical programming and financial objectives for scheduling projects

    CERN Document Server

    Kimms, Alf

    2001-01-01

    Mathematical Programming and Financial Objectives for Scheduling Projects focuses on decision problems where the performance is measured in terms of money. As the title suggests, special attention is paid to financial objectives and the relationship of financial objectives to project schedules and scheduling. In addition, how schedules relate to other decisions is treated in detail. The book demonstrates that scheduling must be combined with project selection and financing, and that scheduling helps to give an answer to the planning issue of the amount of resources required for a project. The author makes clear the relevance of scheduling to cutting budget costs. The book is divided into six parts. The first part gives a brief introduction to project management. Part two examines scheduling projects in order to maximize their net present value. Part three considers capital rationing. Many decisions on selecting or rejecting a project cannot be made in isolation and multiple projects must be taken fully into a...

  15. Second Differences: A Mathematical Bridge between Two Projects

    Science.gov (United States)

    Fischer, Joyce; Wayment, Stanley; Johnson, Christopher

    2010-01-01

    Making connections is one of the most important foundations involved in learning mathematics. Two projects are presented in this article: one involving Newton's Second Law of Motion and the other involving the determination of star numbers, a type of figurate number. The two invoke seemingly different modalities for students at different levels of…

  16. Genealogy and gene trees.

    Science.gov (United States)

    Rasmuson, Marianne

    2008-02-01

    Heredity can be followed in persons or in genes. Persons can be identified only a few generations back, but simplified models indicate that universal ancestors to all now living persons have occurred in the past. Genetic variability can be characterized as variants of DNA sequences. Data are available only from living persons, but from the pattern of variation gene trees can be inferred by means of coalescence models. The merging of lines backwards in time leads to a MRCA (most recent common ancestor). The time and place of living for this inferred person can give insights in human evolutionary history. Demographic processes are incorporated in the model, but since culture and customs are known to influence demography the models used ought to be tested against available genealogy. The Icelandic data base offers a possibility to do so and points to some discrepancies. Mitochondrial DNA and Y chromosome patterns give a rather consistent view of human evolutionary history during the latest 100 000 years but the earlier epochs of human evolution demand gene trees with longer branches. The results of such studies reveal as yet unsolved problems about the sources of our genome.

  17. 8 CFR 103.38 - Genealogy Program.

    Science.gov (United States)

    2010-01-01

    ... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false Genealogy Program. 103.38 Section 103.38...; AVAILABILITY OF RECORDS § 103.38 Genealogy Program. (a) Purpose. The Department of Homeland Security, U.S. Citizenship and Immigration Services Genealogy Program is a fee-for-service program designed to provide...

  18. Mathematical foundations of the projection-operator method

    International Nuclear Information System (INIS)

    Moore, S.M.

    1979-01-01

    Mathematical foundations are determined for the projection-operator method developed by Zwanzig and Mori and used in the study of cooperative phenomena in non-equilibrium processes. It is shown that the Hilbert space of operators can be taken as the Hilbert-Schmidt class. Comments are made on the possibility of a complete formulation of quantum mechanics in terms of this Hilbert space. (author)

  19. Generation of genealogical spin eigenfunctions

    International Nuclear Information System (INIS)

    Grabenstetter, J.E.; Tseng, T.J.; Grein, F.

    1976-01-01

    A method is given for generating the Yamanouchi-Kotani genealogical spin eigenfunctions which requires neither storage of eigenfunctions for smaller numbers of electrons, nor summations of large order, nor explicit use of results from the theory of representations of the symmetric group. An explicit formula is given for the coefficients of expansion in terms of spin products

  20. Two Project-Based Strategies in an Interdisciplinary Mathematical Modeling in Biology Course

    Science.gov (United States)

    Ludwig, Patrice; Tongen, Anthony; Walton, Brian

    2018-01-01

    James Madison University faculty team-teach an interdisciplinary mathematical modeling course for mathematics and biology students. We have used two different project-based approaches to emphasize the mathematical concepts taught in class, while also exposing students to new areas of mathematics not formally covered in class. The first method…

  1. The QUASAR Project: The "Revolution of the Possible" in Mathematics Instructional Reform in Urban Middle Schools.

    Science.gov (United States)

    Silver, Edward A.; Stein, Mary Kay

    1996-01-01

    Examines critical features of the QUASAR Project, a mathematics instruction program oriented toward helping students develop a meaningful understanding of mathematical ideas through challenging mathematical tasks, and discusses findings regarding the positive impact it has had on students. Challenges and obstacles in implementing the project are…

  2. Invented genealogies as political mythologies: definitionand examples

    Directory of Open Access Journals (Sweden)

    Filip-Lucian Iorga

    2012-10-01

    Full Text Available The genealogical imaginary is a subcategory of the imaginary referring to the origin and it comprises a wide range of genealogical myths: fictitious ancestors, whether divine or human, fabulous kinships, invented genealogies, descendancies which are impossible to certify with documents, erroneous interpretations of certain degrees of kinship, real genealogies that have received unexpected interpretations and historiographic clichés grown on more or less attestable genealogies. The case of the Balş family is one of the most interesting: trying to integrate in the political structures of the Austrian and Russian Empire, some members of this old Moldavian family invent a fictitious genealogy that links the French counts of Baux, the Balsa family, a Serbian medieval dynasty and the Balş family, Moldavian boyars.

  3. Game Development as Students’ Engagement Project in High School Mathematics

    Directory of Open Access Journals (Sweden)

    Ryan V. Dio

    2015-12-01

    Full Text Available The general expectancies of the enhanced basic education curriculum in the Philippines focuses on the performance standards which can be expressed when students are able to produce products as evidence that they can transfer or use their learning in real-life situations. One way to assess students achievement is through an engaging activities that would require them apply the knowledge and skills acquired in the subject as the outcome of their learning. This descriptive method of research employed content analysis procedures and survey in describing and assessing the significant feature of the mathematical games as potential learning devices developed by the high school students through an engaging task assignment. It utilized purposive sampling techniques in the selection of the respondents and the submitted write-ups of mathematical games for analysis as typical sample in this study. The study revealed that the high school students developed mathematical board games with different objectives and mechanics as inspired by their learning, experiences, hobbies, and interest. Mathematical concepts and processes along numbers and number sense, measurements, algebra, geometry, and probability and statistics were integrated in the game through question card and mechanics of the game itself. The groups of students and teachers have high level of agreement as to the workmanship and usability, mechanics and organization, relevance to instruction/learning, and fun and enjoyment of the game as revealed by their assessment from very satisfactory to excellent level. Results implied that teachers in any subject area may use students’ engagement project as teaching strategy to produce products and performance that would provide evidence of students’ learning. The school curriculum makers may consider the students’ output as subjects of research for further improvements, exhibits, and classroom utilization.

  4. Genealogical series method. Hyperpolar points screen effect

    International Nuclear Information System (INIS)

    Gorbatov, A.M.

    1991-01-01

    The fundamental values of the genealogical series method -the genealogical integrals (sandwiches) have been investigated. The hyperpolar points screen effect has been found. It allows one to calculate the sandwiches for the Fermion systems with large number of particles and to ascertain the validity of the iterated-potential method as well. For the first time the genealogical-series method has been realized numerically for the central spin-independent potential

  5. 38 CFR 1.505 - Genealogy.

    Science.gov (United States)

    2010-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 1 2010-07-01 2010-07-01 false Genealogy. 1.505 Section 1.505 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS GENERAL PROVISIONS Release of Information from Department of Veterans Affairs Claimant Records § 1.505 Genealogy. Information...

  6. University of Chicago School Mathematics Project 6-12 Curriculum. What Works Clearinghouse Intervention Report

    Science.gov (United States)

    What Works Clearinghouse, 2011

    2011-01-01

    The "University of Chicago School Mathematics Project ("UCSMP") 6-12 Curriculum" is a series of yearlong courses--(1) Transition Mathematics; (2) Algebra; (3) Geometry; (4) Advanced Algebra; (5) Functions, Statistics, and Trigonometry; and (6) Precalculus and Discrete Mathematics--emphasizing problem solving, real-world applications, and the use…

  7. Assessment in the Context of Mathematics Instruction Reform: The Design of Assessment in the QUASAR Project.

    Science.gov (United States)

    Silver, Edward A.; Lane, Suzanne

    Recent reports on mathematics education reform have focused the attention of educational practitioners and policymakers on new goals for mathematics education and new descriptions of mathematical proficiency. QUASAR is a national project (Quantitative Understanding: Amplifying Student Achievement and Reasoning) designed to improve the mathematics…

  8. Mathematical Representation Ability by Using Project Based Learning on the Topic of Statistics

    Science.gov (United States)

    Widakdo, W. A.

    2017-09-01

    Seeing the importance of the role of mathematics in everyday life, mastery of the subject areas of mathematics is a must. Representation ability is one of the fundamental ability that used in mathematics to make connection between abstract idea with logical thinking to understanding mathematics. Researcher see the lack of mathematical representation and try to find alternative solution to dolve it by using project based learning. This research use literature study from some books and articles in journals to see the importance of mathematical representation abiliy in mathemtics learning and how project based learning able to increase this mathematical representation ability on the topic of Statistics. The indicators for mathematical representation ability in this research classifies namely visual representation (picture, diagram, graph, or table); symbolize representation (mathematical statement. Mathematical notation, numerical/algebra symbol) and verbal representation (written text). This article explain about why project based learning able to influence student’s mathematical representation by using some theories in cognitive psychology, also showing the example of project based learning that able to use in teaching statistics, one of mathematics topic that very useful to analyze data.

  9. Bullying, Genealogy of the Concept

    DEFF Research Database (Denmark)

    Søndergaard, Dorte Marie

    2017-01-01

    Bullying is a serious problem among children in schools and institutions. However, it is only relatively recently that bullying has emerged as a field of research, although the phenomenon itself has likely existed in various forms among children for as long as mankind has walked the earth. The ge....... The genealogy of bullying as a concept has taken the understanding of bullying in different directions with a varying emphasis on either the roles played by individuals (victims and perpetrators) or on social and relational aspects....

  10. 8 CFR 103.40 - Genealogical Research Requests.

    Science.gov (United States)

    2010-01-01

    .... Genealogy requests are requests for searches and/or copies of historical records relating to a deceased person, usually for genealogy and family history research purposes. (b) Manner of requesting genealogical searches and records. Requests must be submitted on Form G-1041, Genealogy Index Search Request, or Form G...

  11. Lesbian Studies after The Lesbian Postmodern: toward a new genealogy.

    Science.gov (United States)

    Doan, Laura

    2007-01-01

    While Lesbian Studies is established as a commodity in the academic marketplace, its disciplinary contours are rather more obscure-and even more problematically, its disciplinary genealogy remains somewhat crude. The dominant genealogy of Lesbian Studies might best be characterized as a 'collision model,' a battle between politics and theory, even though much existing scholarship draws on both Lesbian-Feminist Theory and Queer Theory.1 This article proposes that the tools and methods of a sub-field called 'Lesbian Cultural History' might be useful in generating other historical accounts of the origins and evolution of Lesbian Studies. Such a project is vital because the writing of our disciplinary History clarifies how we envision a disciplinary future.

  12. Making mathematics with needlework ten papers and ten projects

    CERN Document Server

    belcastro, sarah-marie

    2007-01-01

    Mathematical craftwork has become extremely popular, and mathematicians and crafters alike are fascinated by the relationship between their crafts. The focus of this book, written for mathematicians, needleworkers, and teachers of mathematics, is on the relationship between mathematics and the fiber arts (including knitting, crocheting, cross-stitch, and quilting). Each chapter starts with an overview of the mathematics and the needlework at a level understandable to both mathematicians and needleworkers, followed by more technical sections discussing the mathematics, how to introduce the math

  13. Genealogical relationships between early medieval and modern inhabitants of Piedmont.

    Science.gov (United States)

    Vai, Stefania; Ghirotto, Silvia; Pilli, Elena; Tassi, Francesca; Lari, Martina; Rizzi, Ermanno; Matas-Lalueza, Laura; Ramirez, Oscar; Lalueza-Fox, Carles; Achilli, Alessandro; Olivieri, Anna; Torroni, Antonio; Lancioni, Hovirag; Giostra, Caterina; Bedini, Elena; Pejrani Baricco, Luisella; Matullo, Giuseppe; Di Gaetano, Cornelia; Piazza, Alberto; Veeramah, Krishna; Geary, Patrick; Caramelli, David; Barbujani, Guido

    2015-01-01

    In the period between 400 to 800 AD, also known as the period of the Barbarian invasions, intense migration is documented in the historical record of Europe. However, little is known about the demographic impact of these historical movements, potentially ranging from negligible to substantial. As a pilot study in a broader project on Medieval Europe, we sampled 102 specimens from 5 burial sites in Northwestern Italy, archaeologically classified as belonging to Lombards or Longobards, a Germanic people ruling over a vast section of the Italian peninsula from 568 to 774. We successfully amplified and typed the mitochondrial hypervariable region I (HVR-I) of 28 individuals. Comparisons of genetic diversity with other ancient populations and haplotype networks did not suggest that these samples are heterogeneous, and hence allowed us to jointly compare them with three isolated contemporary populations, and with a modern sample of a large city, representing a control for the effects of recent immigration. We then generated by serial coalescent simulations 16 millions of genealogies, contrasting a model of genealogical continuity with one in which the contemporary samples are genealogically independent from the medieval sample. Analyses by Approximate Bayesian Computation showed that the latter model fits the data in most cases, with one exception, Trino Vercellese, in which the evidence was compatible with persistence up to the present time of genetic features observed among this early medieval population. We conclude that it is possible, in general, to detect evidence of genealogical ties between medieval and specific modern populations. However, only seldom did mitochondrial DNA data allow us to reject with confidence either model tested, which indicates that broader analyses, based on larger assemblages of samples and genetic markers, are needed to understand in detail the effects of medieval migration.

  14. Genealogical relationships between early medieval and modern inhabitants of Piedmont.

    Directory of Open Access Journals (Sweden)

    Stefania Vai

    Full Text Available In the period between 400 to 800 AD, also known as the period of the Barbarian invasions, intense migration is documented in the historical record of Europe. However, little is known about the demographic impact of these historical movements, potentially ranging from negligible to substantial. As a pilot study in a broader project on Medieval Europe, we sampled 102 specimens from 5 burial sites in Northwestern Italy, archaeologically classified as belonging to Lombards or Longobards, a Germanic people ruling over a vast section of the Italian peninsula from 568 to 774. We successfully amplified and typed the mitochondrial hypervariable region I (HVR-I of 28 individuals. Comparisons of genetic diversity with other ancient populations and haplotype networks did not suggest that these samples are heterogeneous, and hence allowed us to jointly compare them with three isolated contemporary populations, and with a modern sample of a large city, representing a control for the effects of recent immigration. We then generated by serial coalescent simulations 16 millions of genealogies, contrasting a model of genealogical continuity with one in which the contemporary samples are genealogically independent from the medieval sample. Analyses by Approximate Bayesian Computation showed that the latter model fits the data in most cases, with one exception, Trino Vercellese, in which the evidence was compatible with persistence up to the present time of genetic features observed among this early medieval population. We conclude that it is possible, in general, to detect evidence of genealogical ties between medieval and specific modern populations. However, only seldom did mitochondrial DNA data allow us to reject with confidence either model tested, which indicates that broader analyses, based on larger assemblages of samples and genetic markers, are needed to understand in detail the effects of medieval migration.

  15. Genealogical Trees of Scientific Papers.

    Science.gov (United States)

    Waumans, Michaël Charles; Bersini, Hugues

    2016-01-01

    Many results have been obtained when studying scientific papers citations databases in a network perspective. Articles can be ranked according to their current in-degree and their future popularity or citation counts can even be predicted. The dynamical properties of such networks and the observation of the time evolution of their nodes started more recently. This work adopts an evolutionary perspective and proposes an original algorithm for the construction of genealogical trees of scientific papers on the basis of their citation count evolution in time. The fitness of a paper now amounts to its in-degree growing trend and a "dying" paper will suddenly see this trend declining in time. It will give birth and be taken over by some of its most prevalent citing "offspring". Practically, this might be used to trace the successive published milestones of a research field.

  16. Kinship and Beyond: The Genealogical Model Reconsidered

    Directory of Open Access Journals (Sweden)

    Ryan Schram

    2010-08-01

    Full Text Available Review of Kinship and Beyond: The Genealogical Model Reconsidered. Sandra Bamford and James Leach, eds. 2009. Berghahn Books, New York. 292 pp., 21 illustrations, bibliography, index. $95.00 (hardback. ISBN 9781845454227.

  17. School Mathematics Leaders' Beliefs about Their Role When Participating in a School Mathematics Project

    Science.gov (United States)

    Sexton, Matt; Downton, Ann

    2014-01-01

    It is not uncommon in many Australian primary schools for a teaching staff member to undertake the leadership or coordination of mathematics in his or her school. Some research (e.g., Cheeseman & Clarke, 2005) suggests that coordinators and leaders play an important role in the leadership and management of mathematics teaching and learning in…

  18. Developing Mathematical Literacy through project work: A teacher/teaching perspective

    Directory of Open Access Journals (Sweden)

    Renuka Vithal

    2006-10-01

    Full Text Available The implementation of the new Mathematical Literacy curriculum in South Africa is assuming several different conceptions of mathematics and therefore also being realised through a range of different pedagogies. In this paper I begin from a particular privileging of a critical perspective in mathematics education, which I argue is one (among others of the forces shaping the new South African curriculum reforms, particularly the Mathematical Literacy curriculum. If so, then the case for a specific pedagogy, that of project work, can be shown to support the development of a mathematical literacy from a critical perspective. In this paper a particular set of conceptual tools, principles and practices associated with project work, as developed in the Scandanavian context but researched in South Africa, are elaborated from the perspective of teachers/teaching of mathematical literacy.

  19. Research Progress in Mathematical Analysis of Map Projection by Computer Algebra

    Directory of Open Access Journals (Sweden)

    BIAN Shaofeng

    2017-10-01

    Full Text Available Map projection is an important component of modern cartography, and involves many fussy mathematical analysis processes, such as the power series expansions of elliptical functions, differential of complex and implicit functions, elliptical integral and the operation of complex numbers. The derivation of these problems by hand not only consumes much time and energy but also makes mistake easily, and sometimes can not be realized at all because of the impossible complexity. The research achievements in mathematical analysis of map projection by computer algebra are systematically reviewed in five aspects, i.e., the symbolic expressions of forward and inverse solution of ellipsoidal latitudes, the direct transformations between map projections with different distortion properties, expressions of Gauss projection by complex function, mathematical analysis of oblique Mercator projection, polar chart projection with its transformation. Main problems that need to be further solved in this research field are analyzed. It will be helpful to promote the development of map projection.

  20. Developing corpus-based translation methods between informal and formal mathematics : project description

    NARCIS (Netherlands)

    Kaliszyk, C.; Urban, J.; Vyskocil, J.; Geuvers, J.H.; Watt, S.M.; Davenport, J.H.; Sexton, A.P.; Sojka, P.; Urban, J.

    2014-01-01

    The goal of this project is to (i) accumulate annotated informal/formal mathematical corpora suitable for training semi-automated translation between informal and formal mathematics by statistical machine-translation methods, (ii) to develop such methods oriented at the formalization task, and in

  1. Projects Using a Computer Algebra System in First-Year Undergraduate Mathematics

    Science.gov (United States)

    Rosenzweig, Martin

    2007-01-01

    This paper illustrates the use of computer-based projects in two one-semester first-year undergraduate mathematics classes. Developed over a period of years, the approach is one in which the classes are organised into work-groups, with computer-based projects being undertaken periodically to illustrate the class material. These projects are…

  2. On the Use of Client-Driven Projects in the Mathematics Classroom

    Science.gov (United States)

    Maki, Dan; Winston, Wayne; Shafii-Mousavi, Morteza; Kochanowski, Paul; Lang, Chris; Ernstberger, Kathy; Hodgson, Ted

    2006-01-01

    In this article, we discuss the use of client-driven projects--projects that are posed by business, government, and non-profit organizations and based upon real problems facing the organization. Although client-driven projects have long been used in business and engineering education, their use in the mathematics classroom is rare. Client-driven…

  3. Moduli of mathematical instanton vector bundles with odd c2 on projective space

    International Nuclear Information System (INIS)

    Tikhomirov, Aleksandr S

    2012-01-01

    We study the moduli space I n of mathematical instanton vector bundles of rank 2 with second Chern class n≥1 on the projective space P 3 , and prove the irreducibility of I n for arbitrary odd n≥1.

  4. Office and Agamben's Genealogy of Economy and Government

    DEFF Research Database (Denmark)

    Dean, Mitchell

    2017-01-01

    This paper locates Giorgio Agamben’s book Opus Dei in his larger Homo Sacer project and particularly a series of genealogical and archaeological studies within it. It argues for a disenchanted and dispersed reading of Agamben’s approach to office as a resource for concerns that are germane...... for office. More broadly, Agamben’s work on office is shown to bear upon questions of the constitution of sovereignty and government as forms of power, on different forms of rationalisation, and themes of secularisation and modernity found in classical sociology and intellectual history....

  5. Use of mathematical modeling in nuclear measurements projects

    International Nuclear Information System (INIS)

    Toubon, H.; Menaa, N.; Mirolo, L.; Ducoux, X.; Khalil, R. A.; Chany, P.; Devita, A.

    2011-01-01

    Mathematical modeling of nuclear measurement systems is not a new concept. The response of the measurement system is described using a pre-defined mathematical model that depends on a set of parameters. These parameters are determined using a limited set of experimental measurement points e.g. efficiency curve, dose rates... etc. The model that agrees with the few experimental points is called an experimentally validated model. Once these models have been validated, we use mathematical interpolation to find the parameters of interest. Sometimes, when measurements are not practical or are impossible extrapolation is implemented but with care. CANBERRA has been extensively using mathematical modeling for the design and calibration of large and sophisticated systems to create and optimize designs that would be prohibitively expensive with only experimental tools. The case studies that will be presented here are primarily performed with MCNP, CANBERRA's MERCURAD/PASCALYS and ISOCS (In Situ Object Counting Software). For benchmarking purposes, both Monte Carlo and ray-tracing based codes are inter-compared to show models consistency and add a degree of reliability to modeling results. (authors)

  6. 8 CFR 103.41 - Genealogy request fees.

    Science.gov (United States)

    2010-01-01

    ... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false Genealogy request fees. 103.41 Section 103...; AVAILABILITY OF RECORDS § 103.41 Genealogy request fees. (a) Genealogy search fee. See 8 CFR 103.7(b)(1). (b) Genealogy records fees. See 8 CFR 103.7(b)(1). (c) Manner of submission. When a request is submitted online...

  7. MATHEMATICAL APPARATUS FOR KNOWLEDGE BASE PROJECT MANAGEMENT OF OCCUPATIONAL SAFETY

    Directory of Open Access Journals (Sweden)

    Валентина Николаевна ПУРИЧ

    2015-05-01

    Full Text Available The occupational safety project (OSP management is aimed onto a rational choice implementation. With respect to the subjectivity of management goals the project selection is considered as a minimum formalization level information process, The proposed project selection model relies upon the enterprise’s occupational and industrial safety assessment using fuzzy logic and linguistic variables based on occupational safety knowledge base.

  8. Estimating the Distance to the Moon--Its Relevance to Mathematics. Core-Plus Mathematics Project.

    Science.gov (United States)

    Stern, David P.

    This document features an activity for estimating the distance from the earth to the moon during a solar eclipse based on calculations performed by the ancient Greek astronomer Hipparchus. Historical, mathematical, and scientific details about the calculation are provided. Internet resources for teachers to obtain more information on the subject…

  9. Narrative Reflection in the Philosophy of Teaching: Genealogies and Portraits

    Science.gov (United States)

    McEwan, Hunter

    2011-01-01

    How has philosophical reflection contributed to the ways that we think about teaching? In this paper I explore two forms of narrative reflection on teaching--genealogies and portraits. Genealogies tell a story about the origins of teaching; portraits find expression in myths and other narrative forms. I explore two genealogies of teaching--one…

  10. Coalescent genealogy samplers: windows into population history.

    Science.gov (United States)

    Kuhner, Mary K

    2009-02-01

    Coalescent genealogy samplers attempt to estimate past qualities of a population, such as its size, growth rate, patterns of gene flow or time of divergence from another population, based on samples of molecular data. Genealogy samplers are increasingly popular because of their potential to disentangle complex population histories. In the last decade they have been widely applied to systems ranging from humans to viruses. Findings include detection of unexpected reproductive inequality in fish, new estimates of historical whale abundance, exoneration of humans for the prehistoric decline of bison and inference of a selective sweep on the human Y chromosome. This review summarizes available genealogy-sampler software, including data requirements and limitations on the use of each program.

  11. Project-Based Social Justice Mathematics: A Case Study of Five 6th Grade Students

    Science.gov (United States)

    McHugh, Maighread L.

    2015-01-01

    The purpose of this qualitative multiple case study was to explore how five sixth grade female students navigated the process of project-based learning as they designed and implemented their own project centered on mathematics while using a social justice lens. The theoretical frameworks of Authentic Intellectual Work and Social Justice…

  12. Reduce, Reuse, Recycle: Resources and Strategies for the Use of Writing Projects in Mathematics

    Science.gov (United States)

    Latulippe, Joe; Latulippe, Christine

    2014-01-01

    As an often recommended but under-utilized pedagogical strategy, writing in mathematics has many benefits for students. However, creating and grading worthwhile writing projects can be more time-consuming than utilizing more traditional forms of assessment. This paper provides a concrete example of a writing project prompt, questions, directions,…

  13. Genealogical data in population medical genetics: field guidelines

    Directory of Open Access Journals (Sweden)

    Fernando A. Poletta

    2014-01-01

    Full Text Available This is a guide for fieldwork in Population Medical Genetics research projects. Data collection, handling, and analysis from large pedigrees require the use of specific tools and methods not widely familiar to human geneticists, unfortunately leading to ineffective graphic pedigrees. Initially, the objective of the pedigree must be decided, and the available information sources need to be identified and validated. Data collection and recording by the tabulated method is advocated, and the involved techniques are presented. Genealogical and personal information are the two main components of pedigree data. While the latter is unique to each investigation project, the former is solely represented by gametic links between persons. The triad of a given pedigree member and its two parents constitutes the building unit of a genealogy. Likewise, three ID numbers representing those three elements of the triad is the record field required for any pedigree analysis. Pedigree construction, as well as pedigree and population data analysis, varies according to the pre-established objectives, the existing information, and the available resources.

  14. Probabilistic models of population evolution scaling limits, genealogies and interactions

    CERN Document Server

    Pardoux, Étienne

    2016-01-01

    This expository book presents the mathematical description of evolutionary models of populations subject to interactions (e.g. competition) within the population. The author includes both models of finite populations, and limiting models as the size of the population tends to infinity. The size of the population is described as a random function of time and of the initial population (the ancestors at time 0). The genealogical tree of such a population is given. Most models imply that the population is bound to go extinct in finite time. It is explained when the interaction is strong enough so that the extinction time remains finite, when the ancestral population at time 0 goes to infinity. The material could be used for teaching stochastic processes, together with their applications. Étienne Pardoux is Professor at Aix-Marseille University, working in the field of Stochastic Analysis, stochastic partial differential equations, and probabilistic models in evolutionary biology and population genetics. He obtai...

  15. Mathematical Practices and Arts Integration in an Activity-Based Projective Geometry Course

    Science.gov (United States)

    Ernest, Jessica Brooke

    It is a general assumption that the mathematical activity of students in school should, at least to some degree, parallel the practices of professional mathematicians (Brown, Collins, Duguid, 1989; Moschkovich, 2013). This assumption is reflected in the Common Core State Standards (CCSSI, 2010) and National Council of Teachers of Mathematics (NCTM, 2000) standards documents. However, the practices included in these standards documents, while developed to reflect the practices of professional mathematicians, may be idealized versions of what mathematicians actually do (Moschkovich, 2013). This might lead us to question then: "What is it that mathematicians do, and what practices are not being represented in the standards documents?" In general, the creative work of mathematicians is absent from the standards and, in turn, from school mathematics curricula, much to the dismay of some mathematicians and researchers (Lockhart, 2009; Rogers, 1999). As a result, creativity is not typically being fostered in mathematics students. As a response to this lack of focus on fostering creativity (in each of the science, technology, engineering, and mathematics disciplines--the STEM disciplines), a movement to integrate the arts emerged. This movement, called the STEAM movement--introducing the letter A into the acronym STEM to signify incorporating the arts--has been gaining momentum, yet limited research has been carried out on the efficacy of integrating the arts into mathematics courses. My experiences as the co-instructor for an activity-based course focused on projective geometry led me to consider the course as a setting for investigating both mathematical practices and arts integration. In this work, I explored the mathematical practices in which students engaged while working to develop an understanding of projective geometry through group activities. Furthermore, I explored the way in which students' learning experiences were enriched through artistic engagement in the

  16. Genetic genealogy: the Woodson family's experience.

    Science.gov (United States)

    Williams, Sloan R

    2005-06-01

    In 1998, Foster and colleagues published the results of a genetic study intended to test whether Thomas Jefferson could have fathered any of Sally Hemings' children. They found that the Jefferson Y chromosome haplotype matched that of a descendant of Hemings' youngest child, but not that of the descendants of the eldest son, Thomas Woodson. The Woodson descendants were shocked by the study's finding, which disagreed with their family oral history. They were suspicious of the study conclusions because of the methods used in recruiting participants for the study and the manner in which they learned of the results. The Woodsons' experience as participants in one of the first examples of genetic genealogy illustrates several issues that both geneticists and amateur genetic genealogists will face in studies of this kind. Misperceptions about the relationship between biology and race, and group genetics in general, can make the interpretation of genetic data difficult. Continuing collaborations between the media and the scientific community will help the public to better understand the risks as well as the benefits of genetic genealogy. Researchers must decide prior to beginning their research what role the human subjects will play in the study and when they will be notified of the study's conclusions. Amateur genetic genealogists should anticipate unexpected outcomes, such as the identification of nonpaternity, to minimize any harmful effects to study participants. Although modern genetic methods provide a powerful new tool for genealogical study, they cannot resolve all genealogical issues, as this study shows, and can involve unanticipated risks to the participants.

  17. On finding algebraic expressions for genealogical coefficients

    International Nuclear Information System (INIS)

    Kanyauskas, J.M.; Shimonis, V.Ch.; Rudzikas, Z.B.

    1979-01-01

    It has been attempted to obtain analytical expressions for genealogical coefficients with one detached electron in the case of L-S coupling. A method of second quantization and tensorial properties of the quasi-spin operator are applied. It is restricted to the states for the classification of which the seigniority quantum number v is sufficient. Three ways of the acquirement of these expressions are discussed: 1. In the recurrent way wave functions of N and N-1 electrons are built, consequently expressing these functions in terms of the creation-annihilation operators. 2. Recurrent summation with the use of evident, simple genealogical coefficients. 3. Using the ratios, connecting the genealogical coefficients with the normalized multiplier. The data are presented in formulae and discussions. The generalization of the Redmond's formula is obtained and relatively simple algebraic expressions of the genealogical coefficients of the equivalent electron configurations, for the distinction of the recurrent terms of which introduction of the seigniority quantum number v is sufficient, are given

  18. "Safeguarding" Sports Coaching: Foucault, Genealogy and Critique

    Science.gov (United States)

    Garratt, Dean; Piper, Heather; Taylor, Bill

    2013-01-01

    This paper offers a genealogical account of safeguarding in sport. Drawing specifically on Foucault's work, it examines the "politics of touch" in relation to the social and historical formation of child protection policy in sports coaching. While the analysis has some resonance with the context of coaching as a whole, for illustrative…

  19. "Lolita": Genealogy of a Cover Girl

    Science.gov (United States)

    Savage, Shari L.

    2015-01-01

    At the publication of Vladimir Nabokov's controversial novel "Lolita" (1958), the author insisted that a girl never appear on the cover. This discourse analysis of 185 "Lolita" book covers, most of which feature a girl, considers the genealogy of "Lolita" in relation to representation, myth, and tacit knowledge…

  20. A Baseline Method for Genealogical Entity Resolution

    NARCIS (Netherlands)

    Efremova, J.; Ranjbar-Sahraei, B.; Oliehoek, F.A.; Calders, T.; Tuyls, K.

    2014-01-01

    In this paper we study the application of entity resolution (ER) techniques on a real-world multi-source genealogical dataset. Our goal is to identify all persons involved in various notary acts and link them to their birth, marriage and death certificates. In order to evaluate the performance of a

  1. The Total Somali Clan Genealogy (second edition)

    NARCIS (Netherlands)

    Abbink, G.J.

    2009-01-01

    This paper presents an updated genealogy of all Somali 'clans'. Somali kinship is based on patrilineal descent or 'tol', but there are no equivalents in the Somali language for the words 'clan' and 'lineage'. The Somali terminology for the levels of social segmentation is complex, amongst others

  2. Mathematics

    CERN Document Server

    Eringen, A Cemal

    2013-01-01

    Continuum Physics: Volume 1 - Mathematics is a collection of papers that discusses certain selected mathematical methods used in the study of continuum physics. Papers in this collection deal with developments in mathematics in continuum physics and its applications such as, group theory functional analysis, theory of invariants, and stochastic processes. Part I explains tensor analysis, including the geometry of subspaces and the geometry of Finsler. Part II discusses group theory, which also covers lattices, morphisms, and crystallographic groups. Part III reviews the theory of invariants th

  3. Transitioning the GED[R] Mathematics Test to Computer with and without Accommodations: A Pilot Project

    Science.gov (United States)

    Patterson, Margaret Becker; Higgins, Jennifer; Bozman, Martha; Katz, Michael

    2011-01-01

    We conducted a pilot study to see how the GED Mathematics Test could be administered on computer with embedded accessibility tools. We examined test scores and test-taker experience. Nineteen GED test centers across five states and 216 randomly assigned GED Tests candidates participated in the project. GED candidates completed two GED mathematics…

  4. Mathematics Curriculum in Ireland: The Influence of PISA on the Development of Project Maths

    Science.gov (United States)

    Kirwan, Liz

    2015-01-01

    This article interrogates the extent to which the Organization for Economic Cooperation and Development (OECD) through its Programme for International Student Assessment (PISA) influenced the development of Project Maths, a new second-level mathematics education policy in Ireland. It argues that the Irish government, in its revision of mathematics…

  5. University of Chicago School Mathematics Project (UCSMP) Algebra. WWC Intervention Report

    Science.gov (United States)

    What Works Clearinghouse, 2009

    2009-01-01

    University of Chicago School Mathematics Project (UCSMP) Algebra is a one-year course covering three primary topics: (1) linear and quadratic expressions, sentences, and functions; (2) exponential expressions and functions; and (3) linear systems. Topics from geometry, probability, and statistics are integrated with the appropriate algebra.…

  6. Team Research at the Biology-Mathematics Interface: Project Management Perspectives

    Science.gov (United States)

    Milton, John G.; Radunskaya, Ami E.; Lee, Arthur H.; de Pillis, Lisette G.; Bartlett, Diana F.

    2010-01-01

    The success of interdisciplinary research teams depends largely upon skills related to team performance. We evaluated student and team performance for undergraduate biology and mathematics students who participated in summer research projects conducted in off-campus laboratories. The student teams were composed of a student with a mathematics…

  7. Math Path: Encouraging Female Students in Mathematics through Project-Based Learning

    Science.gov (United States)

    Evans, Riley; Friedman, Jane; McGrath, Lynn; Myers, Perla; Ruiz, Amanda

    2018-01-01

    Although the number of bachelor's degrees in the U.S. awarded to women has gone up, engagement of women in science, technology, engineering, and mathematics (STEM) continues to be low. This paper presents a project-based learning program, informed by education research best practices, designed to provide research experiences to female students…

  8. Exploring the Effects of Project-Based Learning in Secondary Mathematics Education

    Science.gov (United States)

    Holmes, Vicki-Lynn; Hwang, Yooyeun

    2016-01-01

    This mixed-method, longitudinal study investigated the benefits of project-based learning (PBL) on secondary-mathematics students' academic skill development and motivated strategies for learning (i.e., cognitive, social, and motivational). The focus of this study was academic skill development (algebra- and geometry-assessment scores) and other…

  9. New roles for mathematics in multi-disciplinary,upper secondary school projects

    DEFF Research Database (Denmark)

    Lindenskov, Lena; Andresen, Mette

    2009-01-01

    A new concept, compulsory multi-disciplinary courses, was introduced in upper secondary school curriculum as a central part of a recent reform. This paper reports from a case study of such a triple/four-disciplinary project in mathematics, physics, chemistry and ‘general study preparation...

  10. Genealogies in simple models of evolution

    International Nuclear Information System (INIS)

    Brunet, Éric; Derrida, Bernard

    2013-01-01

    We review the statistical properties of the genealogies of a few models of evolution. In the asexual case, selection leads to coalescence times which grow logarithmically with the size of the population, in contrast with the linear growth of the neutral case. Moreover for a whole class of models, the statistics of the genealogies are those of the Bolthausen–Sznitman coalescent rather than the Kingman coalescent in the neutral case. For sexual reproduction in the neutral case, the time to reach the first common ancestors for the whole population and the time for all individuals to have all their ancestors in common are also logarithmic in the population size, as predicted by Chang in 1999. We discuss how these times are modified by introducing selection in a simple way. (paper)

  11. Modelling students' knowledge organisation: Genealogical conceptual networks

    Science.gov (United States)

    Koponen, Ismo T.; Nousiainen, Maija

    2018-04-01

    Learning scientific knowledge is largely based on understanding what are its key concepts and how they are related. The relational structure of concepts also affects how concepts are introduced in teaching scientific knowledge. We model here how students organise their knowledge when they represent their understanding of how physics concepts are related. The model is based on assumptions that students use simple basic linking-motifs in introducing new concepts and mostly relate them to concepts that were introduced a few steps earlier, i.e. following a genealogical ordering. The resulting genealogical networks have relatively high local clustering coefficients of nodes but otherwise resemble networks obtained with an identical degree distribution of nodes but with random linking between them (i.e. the configuration-model). However, a few key nodes having a special structural role emerge and these nodes have a higher than average communicability betweenness centralities. These features agree with the empirically found properties of students' concept networks.

  12. Mathematics

    CERN Document Server

    Stein, Sherman K

    2010-01-01

    Anyone can appreciate the beauty, depth, and vitality of mathematics with the help of this highly readable text, specially developed from a college course designed to appeal to students in a variety of fields. Readers with little mathematical background are exposed to a broad range of subjects chosen from number theory, topology, set theory, geometry, algebra, and analysis. Starting with a survey of questions on weight, the text discusses the primes, the fundamental theorem of arithmetic, rationals and irrationals, tiling, tiling and electricity, probability, infinite sets, and many other topi

  13. The Genealogical Consequences of Fecundity Variance Polymorphism

    Science.gov (United States)

    Taylor, Jesse E.

    2009-01-01

    The genealogical consequences of within-generation fecundity variance polymorphism are studied using coalescent processes structured by genetic backgrounds. I show that these processes have three distinctive features. The first is that the coalescent rates within backgrounds are not jointly proportional to the infinitesimal variance, but instead depend only on the frequencies and traits of genotypes containing each allele. Second, the coalescent processes at unlinked loci are correlated with the genealogy at the selected locus; i.e., fecundity variance polymorphism has a genomewide impact on genealogies. Third, in diploid models, there are infinitely many combinations of fecundity distributions that have the same diffusion approximation but distinct coalescent processes; i.e., in this class of models, ancestral processes and allele frequency dynamics are not in one-to-one correspondence. Similar properties are expected to hold in models that allow for heritable variation in other traits that affect the coalescent effective population size, such as sex ratio or fecundity and survival schedules. PMID:19433628

  14. Mathematics authentic assessment on statistics learning: the case for student mini projects

    Science.gov (United States)

    Fauziah, D.; Mardiyana; Saputro, D. R. S.

    2018-03-01

    Mathematics authentic assessment is a form of meaningful measurement of student learning outcomes for the sphere of attitude, skill and knowledge in mathematics. The construction of attitude, skill and knowledge achieved through the fulfilment of tasks which involve active and creative role of the students. One type of authentic assessment is student mini projects, started from planning, data collecting, organizing, processing, analysing and presenting the data. The purpose of this research is to learn the process of using authentic assessments on statistics learning which is conducted by teachers and to discuss specifically the use of mini projects to improving students’ learning in the school of Surakarta. This research is an action research, where the data collected through the results of the assessments rubric of student mini projects. The result of data analysis shows that the average score of rubric of student mini projects result is 82 with 96% classical completeness. This study shows that the application of authentic assessment can improve students’ mathematics learning outcomes. Findings showed that teachers and students participate actively during teaching and learning process, both inside and outside of the school. Student mini projects also provide opportunities to interact with other people in the real context while collecting information and giving presentation to the community. Additionally, students are able to exceed more on the process of statistics learning using authentic assessment.

  15. Team research at the biology-mathematics interface: project management perspectives.

    Science.gov (United States)

    Milton, John G; Radunskaya, Ami E; Lee, Arthur H; de Pillis, Lisette G; Bartlett, Diana F

    2010-01-01

    The success of interdisciplinary research teams depends largely upon skills related to team performance. We evaluated student and team performance for undergraduate biology and mathematics students who participated in summer research projects conducted in off-campus laboratories. The student teams were composed of a student with a mathematics background and an experimentally oriented biology student. The team mentors typically ranked the students' performance very good to excellent over a range of attributes that included creativity and ability to conduct independent research. However, the research teams experienced problems meeting prespecified deadlines due to poor time and project management skills. Because time and project management skills can be readily taught and moreover typically reflect good research practices, simple modifications should be made to undergraduate curricula so that the promise of initiatives, such as MATH-BIO 2010, can be implemented.

  16. Mathematics Curriculum in Ireland: The Influence of PISA on the Development of Project Maths

    Directory of Open Access Journals (Sweden)

    Liz KIRWAN

    2015-12-01

    Full Text Available This article interrogates the extent to which the Organization for Economic Cooperation and Development (OECD through its Programme for International Student Assessment (PISA influenced the development of Project Maths, a new second-level mathematics education policy in Ireland. It argues that the Irish government, in its revision of mathematics education policy, was strongly influenced by PISA and that concern with the country’s ‘average’ placement in the international assessment was instrumental in defining the direction of the revision. It traces the genetic imprint of PISA on the development of curriculum policy, the new mathematics syllabus, its content and assessment. It argues that Project Maths sets out to follow closely the PISA conceptual framework. However, the analysis finds that Project Maths is not a mini-PISA but that the programme is comprised of two distinct approaches, on the one hand retaining the abstract, symbolic mathematics of sections of the pre-existing curriculum, while on the other emphasizing a PISA-like approach to pedagogy and to real-life problem solving.

  17. Mathematics curriculum in Ireland: The ınfluence of PISA on the development of project maths

    Directory of Open Access Journals (Sweden)

    Liz Kirwan

    2015-12-01

    Full Text Available This article interrogates the extent to which the Organization for Economic Cooperation and Development (OECD through its Programme for International Student Assessment (PISA influenced the development of Project Maths, a new second-level mathematics education policy in Ireland. It argues that the Irish government, in its revision of mathematics education policy, was strongly influenced by PISA and that concern with the country’s ‘average’ placement in the international assessment was instrumental in defining the direction of the revision. It traces the genetic imprint of PISA on the development of curriculum policy, the new mathematics syllabus, its content and assessment. It argues that Project Maths sets out to follow closely the PISA conceptual framework. However, the analysis finds that Project Maths is not a mini-PISA but that the programme is comprised of two distinct approaches, on the one hand retaining the abstract, symbolic mathematics of sections of the pre-existing curriculum, while on the other emphasizing a PISA-like approach to pedagogy and to real-life problem solving.

  18. Mathematics

    International Nuclear Information System (INIS)

    Demazure, M.

    1988-01-01

    The 1988 progress report of the Mathematics center (Polytechnic School, France), is presented. The Center is composed of different research teams: analysis, Riemann geometry, group theory, formal calculus and algorithm geometry, dynamical systems, topology and singularity. For each team, the members, the research topics, the national and international cooperations, are given. The papers concerning the investigations carried out in 1988, are listed [fr

  19. [Fragments of a health work genealogy: genealogy as a research technique].

    Science.gov (United States)

    Nardi, Henrique Caetano; Tittoni, Jaqueline; Giannechini, Letícia; Ramminger, Tatiana

    2005-01-01

    The article aims to explore the influence of health work in subjectification processes. The notion of history commonly used in health-related scientific output is based on an evolutionist and developmental logic. As a counterpoint, the genealogical approach used in this article and based on Michel Foucault highlights the notions of discontinuity, event, and the production of truth as tools to rethink the ethical and political implications involved in the production of knowledge, practices, and subjects. To illustrate these aspects we sketch a health work genealogy, specifically in the field of mental health and HIV/AIDS work.

  20. How does an ICT-competent mathematics teacher benefit from an ICT-integrative project?

    DEFF Research Database (Denmark)

    Skott, Charlotte Krog; Østergaard, Camilla Hellsten

    2016-01-01

    . We use a theoretical framework for classroom mathematical practices to conceptualise teachers´ learning from a participatory perspective. On the one hand, the teacher realises a potential for a more dialogical approach to teaching. On the other hand, she appears to maintain her habits in relation......We investigate an ICT-competent mathematics teacher’s potentials for professional development as she participates in a sixth-grade statistics project aimed at developing practices that integrate ICTs. This is a critical case study, partly because the teacher is not challenged by the proposed ICTs...... to ICT-use. These contrary tendencies negatively influence the students’ learning opportunities. We offer explanations for why the teacher seems to sticks with her ICT-habits as well as suggestions for future research- and development projects....

  1. An interactive, web-based tool for genealogical entity resolution

    NARCIS (Netherlands)

    Efremova, I.; Ranjbar-Sahraei, B.; Oliehoek, F.A.; Calders, T.G.K.; Tuyls, K.P.

    2013-01-01

    We demonstrate an interactive, web-based tool which helps historians to do Genealogical Entitiy Resolution. This work has two main goals. First, it uses Machine Learning (ML) algorithms to assist humanites researchers to perform Genealogical Entity Resolution. Second, it facilitates the generation

  2. Host specificity and genealogy of Polyplax serrata on Apodemus species: a case of parasite duplication or colonisation?

    Czech Academy of Sciences Publication Activity Database

    Štefka, Jan; Hypša, Václav

    2008-01-01

    Roč. 38, č. 6 (2008), s. 731-741 ISSN 0020-7519 R&D Projects: GA MŠk LC06073 Institutional research plan: CEZ:AV0Z60220518 Keywords : parasite duplication * host specificity * genealogy * speciation * Polyplax * Apodemus Subject RIV: EH - Ecology, Behaviour Impact factor: 3.752, year: 2008

  3. School Mathematics Leaders' Perceptions of Successes and Challenges of Their Leadership Role within a Mathematics Improvement Project

    Science.gov (United States)

    Sexton, Matt; Downton, Ann

    2014-01-01

    The mathematics curriculum leader plays an important role in leading the mathematics curriculum in primary schools. They experience successes and face challenges associated with this leadership role. The perceptions that 25 mathematics leaders held about the successes and challenges they experienced whilst participating in a school mathematics…

  4. GENLIB: an R package for the analysis of genealogical data.

    Science.gov (United States)

    Gauvin, Héloïse; Lefebvre, Jean-François; Moreau, Claudia; Lavoie, Eve-Marie; Labuda, Damian; Vézina, Hélène; Roy-Gagnon, Marie-Hélène

    2015-05-15

    Founder populations have an important role in the study of genetic diseases. Access to detailed genealogical records is often one of their advantages. These genealogical data provide unique information for researchers in evolutionary and population genetics, demography and genetic epidemiology. However, analyzing large genealogical datasets requires specialized methods and software. The GENLIB software was developed to study the large genealogies of the French Canadian population of Quebec, Canada. These genealogies are accessible through the BALSAC database, which contains over 3 million records covering the whole province of Quebec over four centuries. Using this resource, extended pedigrees of up to 17 generations can be constructed from a sample of present-day individuals. We have extended and implemented GENLIB as a package in the R environment for statistical computing and graphics, thus allowing optimal flexibility for users. The GENLIB package includes basic functions to manage genealogical data allowing, for example, extraction of a part of a genealogy or selection of specific individuals. There are also many functions providing information to describe the size and complexity of genealogies as well as functions to compute standard measures such as kinship, inbreeding and genetic contribution. GENLIB also includes functions for gene-dropping simulations. The goal of this paper is to present the full functionalities of GENLIB. We used a sample of 140 individuals from the province of Quebec (Canada) to demonstrate GENLIB's functions. Ascending genealogies for these individuals were reconstructed using BALSAC, yielding a large pedigree of 41,523 individuals. Using GENLIB's functions, we provide a detailed description of these genealogical data in terms of completeness, genetic contribution of founders, relatedness, inbreeding and the overall complexity of the genealogical tree. We also present gene-dropping simulations based on the whole genealogy to

  5. Combining project based learning with exercises in problem solving in order to train analytical mathematical skills

    DEFF Research Database (Denmark)

    Friesel, Anna

    2013-01-01

    This paper presents the contents and the teaching methods used in the fourth semester course - REG4E - an important subject in engineering, namely Control Theory and Dynamical Systems. Control Theory courses in engineering education are usually related to exercises in the laboratory or to projects....... However, in order to understand complexity of control systems, the students need to possess an analytical understanding of abstract mathematical problems. Our main goal is to illustrate the theory through the robot project, but at the same time we force our students to train their analytical skills...

  6. The Effects of Project-Based Learning Activities on Academic Achievement and Motivation in Mathematics in Eighth-Grade Students

    Science.gov (United States)

    Mudrich, Rachel Marie

    2017-01-01

    The purpose of this research study was to determine if project-based learning activities (PBLA) incorporated into an eighth-grade mathematics classroom have an effect on students' academic achievement and motivation toward learning. The control group used the traditional instruction method to cover mathematic objective skills that are Common Core…

  7. Can Instructional Reform in Urban Middle Schools Help Students Narrow the Mathematics Performance Gap? Some Evidence from the QUASAR Project.

    Science.gov (United States)

    Silver, Edward A.; Lane, Suzanne

    1995-01-01

    Compared mathematical performance of middle school students in low-income communities involved in the QUASAR project to those of a demographically similar school and of a nationally representative sample. QUASAR mathematics instruction emphasizes reasoning, problem-solving, and understanding. Quasar students outperformed NAEP's disadvantaged urban…

  8. Method of computer generation and projection recording of microholograms for holographic memory systems: mathematical modelling and experimental implementation

    International Nuclear Information System (INIS)

    Betin, A Yu; Bobrinev, V I; Evtikhiev, N N; Zherdev, A Yu; Zlokazov, E Yu; Lushnikov, D S; Markin, V V; Odinokov, S B; Starikov, S N; Starikov, R S

    2013-01-01

    A method of computer generation and projection recording of microholograms for holographic memory systems is presented; the results of mathematical modelling and experimental implementation of the method are demonstrated. (holographic memory)

  9. To Alleviate or Elevate the Euroamerican Genealogy Fever

    Directory of Open Access Journals (Sweden)

    Iain Riddell

    2018-03-01

    Full Text Available There has been a quiet cultural drift towards professionalism in genealogy over the last two decades. Developments in the UK on this subject have resulted in educational offerings that support professionalism through accountability to service consumers while a US debate has pushed for a recognised and regarded scholarship to underpin the professional genealogist. This article places the educational and learning needs of three broad groups of genealogists into the framework of the professional debate in its generality and genealogical specifics. With a concentration on the British context, the article considers the cultural–commercial signals and support offered to ‘armchair enthusiasts’; the emerging models of professional education and formation aimed at lineage makers and the ongoing fractured models of scholastic genealogy. Looking ahead at educational needs, genealogy like other professions is now under threat from advances in artificial intelligence and algorithms, which could slice through the underpinnings of genealogical professionalism. The article concludes with a discussion of an alternative approach to genealogical education derived from the proposition that professionalism is to be found in the outputs and outcomes rather than the organisation of the practitioners of economic activity. From this stance, the needs of a full range of people pursuing genealogy can be addressed and their work informed by the developing understanding of Euroamerican kinship.

  10. The Chernobyl reactor accident, ten years on. Teaching projects for mathematics instruction in interdisciplinary working groups

    International Nuclear Information System (INIS)

    Boer, H.; Delle, E.; Mies, K.; Warmeling, A.

    1996-01-01

    The booklet presents background information and addresses the following aspects: ionizing radiation and radiation effects; safety of German nuclear power plants; statistical evidence of radiation injuries; short-lived and long-lived ionizing radiation; radioactive waste; CO 2 emissions as an argument in favour of nuclear power generation. The material presented is intended for use by a school project team interested in the subjects, or as a basis for collaborative, interdisciplinary teaching in working groups, and it offers information and problems for mathematics teaching. (HP) [de

  11. Post secondary project-based learning in science, technology, engineering and mathematics

    OpenAIRE

    Ralph, Rachel A.

    2016-01-01

    Project-based learning (PjBL - to distinguish from problem-based learning - PBL) has become a recurrent practice in K-12 classroom environments. As PjBL has become prominent in K-12 classrooms, it has also surfaced in post-secondary institutions.  The purpose of this paper is to examine the research that has studied a variety of science, technology, engineering and mathematic subjects using PjBL in post-secondary classrooms. Eleven articles (including qualitative, quantitative and mixed metho...

  12. Genealogical evidence for epidemics of selfish genes.

    Science.gov (United States)

    Ingvarsson, Par K; Taylor, Douglas R

    2002-08-20

    Some genetic elements spread infectiously in populations by increasing their rate of genetic transmission at the expense of other genes in the genome. These so-called selfish genetic elements comprise a substantial portion of eukaryotic genomes and have long been viewed as a potent evolutionary force. Despite this view, little is known about the evolutionary history of selfish genetic elements in natural populations, or their genetic effects on other portions of the genome. Here we use nuclear and chloroplast gene genealogies in two species of Silene to show the historical pattern of selection on a well known selfish genetic element, cytoplasmic male sterility. We provide evidence that evolution of cytoplasmic male sterility has been characterized by frequent turnovers of mutations in natural populations, thus supporting an epidemic model for the evolution of selfish genes, where new mutations repeatedly arise and rapidly sweep through populations.

  13. [On the philosophical genealogy of Freud].

    Science.gov (United States)

    Dimitrov, C T

    1975-06-01

    The origins of psycho-analysis, like those of every other medico-psychological study, have their own particular scientific and specific social, historical and philosophical-theoretical presuppositions. Freud's philosophical genealogy is closely linked to classical german philosophy and subsequent philosophical movements. I. Kant, J.-F. Herbart, A. Schopenhauer, F. Nietzsche, E. v. Hartmann, G. T. Fechner, E. Mach, W. Ostwald, L. Feuerbach and others did not only emphasise the significance of drives and the unconscious in human behaviour, they also described many psychological mechanisms from depth psychology, (for example repression, condensation, substitution, sublimation). Some false theoretical trends in psycho-analysis (biologism, psychologism and simplifying psycho-energetics to simplify) can be explained to some extent by the influences mentioned above.

  14. The effect of genealogy-based haplotypes on genomic prediction

    DEFF Research Database (Denmark)

    Edriss, Vahid; Fernando, Rohan L.; Su, Guosheng

    2013-01-01

    on haplotypes instead of regression on individual markers. The aim of this study was to investigate the accuracy of genomic prediction using haplotypes based on local genealogy information. Methods A total of 4429 Danish Holstein bulls were genotyped with the 50K SNP chip. Haplotypes were constructed using...... local genealogical trees. Effects of haplotype covariates were estimated with two types of prediction models: (1) assuming that effects had the same distribution for all haplotype covariates, i.e. the GBLUP method and (2) assuming that a large proportion (pi) of the haplotype covariates had zero effect......, i.e. a Bayesian mixture method. Results About 7.5 times more covariate effects were estimated when fitting haplotypes based on local genealogical trees compared to fitting individuals markers. Genealogy-based haplotype clustering slightly increased the accuracy of genomic prediction and, in some...

  15. Multigenerational information: the example of the Icelandic Genealogy Database.

    Science.gov (United States)

    Tulinius, Hrafn

    2011-01-01

    The first part of the chapter describes the Icelandic Genealogical Database, how it was created, what it contains, and how it operates. In the second part, an overview of research accomplished with material from the database is given.

  16. Genealogical Properties of Subsamples in Highly Fecund Populations

    Science.gov (United States)

    Eldon, Bjarki; Freund, Fabian

    2018-03-01

    We consider some genealogical properties of nested samples. The complete sample is assumed to have been drawn from a natural population characterised by high fecundity and sweepstakes reproduction (abbreviated HFSR). The random gene genealogies of the samples are—due to our assumption of HFSR—modelled by coalescent processes which admit multiple mergers of ancestral lineages looking back in time. Among the genealogical properties we consider are the probability that the most recent common ancestor is shared between the complete sample and the subsample nested within the complete sample; we also compare the lengths of `internal' branches of nested genealogies between different coalescent processes. The results indicate how `informative' a subsample is about the properties of the larger complete sample, how much information is gained by increasing the sample size, and how the `informativeness' of the subsample varies between different coalescent processes.

  17. A Flexible Fringe Projection Vision System with Extended Mathematical Model for Accurate Three-Dimensional Measurement

    Directory of Open Access Journals (Sweden)

    Suzhi Xiao

    2016-04-01

    Full Text Available In order to acquire an accurate three-dimensional (3D measurement, the traditional fringe projection technique applies complex and laborious procedures to compensate for the errors that exist in the vision system. However, the error sources in the vision system are very complex, such as lens distortion, lens defocus, and fringe pattern nonsinusoidality. Some errors cannot even be explained or rendered with clear expressions and are difficult to compensate directly as a result. In this paper, an approach is proposed that avoids the complex and laborious compensation procedure for error sources but still promises accurate 3D measurement. It is realized by the mathematical model extension technique. The parameters of the extended mathematical model for the ’phase to 3D coordinates transformation’ are derived using the least-squares parameter estimation algorithm. In addition, a phase-coding method based on a frequency analysis is proposed for the absolute phase map retrieval to spatially isolated objects. The results demonstrate the validity and the accuracy of the proposed flexible fringe projection vision system on spatially continuous and discontinuous objects for 3D measurement.

  18. A Flexible Fringe Projection Vision System with Extended Mathematical Model for Accurate Three-Dimensional Measurement.

    Science.gov (United States)

    Xiao, Suzhi; Tao, Wei; Zhao, Hui

    2016-04-28

    In order to acquire an accurate three-dimensional (3D) measurement, the traditional fringe projection technique applies complex and laborious procedures to compensate for the errors that exist in the vision system. However, the error sources in the vision system are very complex, such as lens distortion, lens defocus, and fringe pattern nonsinusoidality. Some errors cannot even be explained or rendered with clear expressions and are difficult to compensate directly as a result. In this paper, an approach is proposed that avoids the complex and laborious compensation procedure for error sources but still promises accurate 3D measurement. It is realized by the mathematical model extension technique. The parameters of the extended mathematical model for the 'phase to 3D coordinates transformation' are derived using the least-squares parameter estimation algorithm. In addition, a phase-coding method based on a frequency analysis is proposed for the absolute phase map retrieval to spatially isolated objects. The results demonstrate the validity and the accuracy of the proposed flexible fringe projection vision system on spatially continuous and discontinuous objects for 3D measurement.

  19. The comparison of Missouri mathematics project and teams games tournament viewed from emotional quotient eight grade student of junior school

    Science.gov (United States)

    Setyawan, Indra; Budiyono, Slamet, Isnandar

    2017-08-01

    This research was a quasi-experimental research with 2 × 3 factorial design. It aimed to determine the learning model between Missouri Mathematics Project (MMP) and Teams Games Tournament (TGT) that gave the best achievement on mathematics subject viewed from emotional quotient. The population of this research were all of Junior High School students at the 8th grade in Surakarta City, Central Java, Indonesia in academic year 2016/2017 which applied KTSP curriculum. The sample was taken by using stratified cluster random sampling. The data were collected by using methods of documentation, emotional quotient questionnaires, and mathematics achievement test. Data analysis technique used two ways analysis of variance (ANOVA) with unequal cell. According to the research findings, it could be concluded that: (1) students' mathematics achievement which were taught by using MMP is as good as emotional quotient achievement which were taught by using TGT in straight-line equation material, (2) mathematics achievement of students with high emotional quotient is better than students with medium and low emotional quotient, and mathematics achievement of students with medium emotional quotient is as good as students with low emotional quotient in straight-line equation material, (3) in each learning model, mathematics achievement of students with high emotional quotient is better than students with medium and low emotional quotient, and mathematics achievement of students with medium emotional quotient is as good as students with low emotional quotient in straight-line equation material (4) in each category of high and medium emotional quotient, student's mathematics achievement which were taught by using MMP is better than student's mathematics achievement which were taught by using TGT and in low emotional quotient student's mathematics achievement which were taught by using MMP is as good as student's mathematics achievement which were taught by using TGT in straight

  20. Integrated learning of mathematics, science and technology concepts through LEGO/Logo projects

    Science.gov (United States)

    Wu, Lina

    This dissertation examined integrated learning in the domains of mathematics, science and technology based on Piaget's constructivism, Papert's constructionism, and project-based approach to education. Ten fifth grade students were involved in a two-month long after school program where they designed and built their own computer-controlled LEGO/Logo projects that required the use of gears, ratios and motion concepts. The design of this study centered on three notions of integrated learning: (1) integration in terms of what educational materials/settings provide, (2) integration in terms of students' use of those materials, and (3) integration in the psychological sense. In terms of the first notion, the results generally showed that the LEGO/Logo environment supported the integrated learning of math, science and technology concepts. Regarding the second notion, the students all completed impressive projects of their own design. They successfully combined gears, motors, and LEGO parts together to create motion and writing control commands to manipulate the motion. But contrary to my initial expectations, their successful designs did not require numerical reasoning about ratios in designing effective gear systems. When they did reason about gear relationships, they worked with "qualitative" ratios, e.g., "a larger driver gear with a smaller driven gear increases the speed." In terms of the third notion of integrated learning, there was evidence in all four case study students of the psychological processes involved in linking mathematical, scientific, and/or technological concepts together to achieve new conceptual units. The students not only made connections between ideas and experiences, but also recognized decisive patterns and relationships in their project work. The students with stronger overall project performances showed more evidence of synthesis than the students with relatively weaker performances did. The findings support the conclusion that all three

  1. High School Mathematics Curriculum Development Integrated with Character Education Within Project Assessment as Spiral System Leveled

    Directory of Open Access Journals (Sweden)

    Siti Badriatul Munawaroh

    2017-08-01

    Full Text Available The purpose of this research are: (1 description of characteristics and (2 validate thesenior hight school of mathematics syllabus integrated character education with the project assessment, (3 test the effectiveness of the learning material of function in class X. Testing procedure of syllabus and learning used research development of Borg & Gall (1987. The data were processed with descriptive analysis, statistical test t test and regression. The results obtained by the integration of the 10 characters on the senior hight school of mathematics syllabus show a valid syllabus by experts with an average score of 4 (both categories, the maximum score of 5. Test implementation on learning reach effective: (1 the percentage of learners achieve mastery learning by 89, 5%; (2 an increase of characters curiosity of learners of meeting 1 to 2, up to 3, up to 4 each score gain of 0.17; 0.30; 0.31; (3 the influence of the curiosity of students to the learning outcomes of 48.9%, (4 the average learning outcomes of students experimental class (77.2 is better than the control class (76.2. Thus, each character can bring a change in behavior according to the character programmed and observed in the learning process in focus. Coordination learning at every level stated in the syllabus.

  2. Computer Hardware, Advanced Mathematics and Model Physics pilot project final report

    International Nuclear Information System (INIS)

    1992-05-01

    The Computer Hardware, Advanced Mathematics and Model Physics (CHAMMP) Program was launched in January, 1990. A principal objective of the program has been to utilize the emerging capabilities of massively parallel scientific computers in the challenge of regional scale predictions of decade-to-century climate change. CHAMMP has already demonstrated the feasibility of achieving a 10,000 fold increase in computational throughput for climate modeling in this decade. What we have also recognized, however, is the need for new algorithms and computer software to capitalize on the radically new computing architectures. This report describes the pilot CHAMMP projects at the DOE National Laboratories and the National Center for Atmospheric Research (NCAR). The pilot projects were selected to identify the principal challenges to CHAMMP and to entrain new scientific computing expertise. The success of some of these projects has aided in the definition of the CHAMMP scientific plan. Many of the papers in this report have been or will be submitted for publication in the open literature. Readers are urged to consult with the authors directly for questions or comments about their papers

  3. Shop Math for the Metal Trades. Combination Welder Apprentice, Machinist Helper, Precision Metal Finisher, Sheet Metal Worker Apprentice. A Report on Metal Trades Industry Certified, Single-Concept, Mathematical Learning Projects to Eliminate Student Math Fears.

    Science.gov (United States)

    Newton, Lawrence R.

    This project (1) identifies basic and functional mathematics skills (shop mathematics skills), (2) provides pretests on these functional mathematics skills, and (3) provides student learning projects (project sheets) that prepare metal trades students to read, understand, and apply mathematics and measuring skills that meet entry-level job…

  4. History and Sociology: A genealogical perspective

    Directory of Open Access Journals (Sweden)

    Ştefan UNGUREAN

    2012-01-01

    Full Text Available What could we possibly learn from a 70 year correspondence from the years of the Second World War, when the course of subsequent history has already been known? The sociologist is interested in seeing how an event unfolds, how it generates other actions, how the actors are driven by, what their strategies are and how they interact. The aim of the present essay is to identify those sociological concepts, that could lead us to explanations of the geopolitical, regarding the way Germany built up its hegemony, by starting from a genealogical perspective, that is, by identifying the logics of a situation and by understanding the reasoning behind individual decision while taking into consideration the analysis of the discourse. We take into account how enforcing a drastic peace treaty on Germany has lead to high surveillance costs that could not be sustained by the victors because of their path dependence, which ultimately led to the fact of the ‘good’ being sacrificed for the sake of the ‘comfortable’. We understand how military successes represent the test of truth for an ideology and provide the Nazi leaders with their legitimacy, inciting a group phantasm. We discern, in the relations between Germany, Soviet Union and the French-English duo, all the elements of a triad and, implicitly, all elements of power that are generated by a game based on imposing and accepting uncertainties. All of the above bare evidence to the fact that sociological notions and concepts can produce revelations when taken into new domains, such as geopolitics and war.

  5. Fitchi: haplotype genealogy graphs based on the Fitch algorithm.

    Science.gov (United States)

    Matschiner, Michael

    2016-04-15

    : In population genetics and phylogeography, haplotype genealogy graphs are important tools for the visualization of population structure based on sequence data. In this type of graph, node sizes are often drawn in proportion to haplotype frequencies and edge lengths represent the minimum number of mutations separating adjacent nodes. I here present Fitchi, a new program that produces publication-ready haplotype genealogy graphs based on the Fitch algorithm. http://www.evoinformatics.eu/fitchi.htm : michaelmatschiner@mac.com Supplementary data are available at Bioinformatics online. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.

  6. Conditional Genealogies and the Age of a Neutral Mutant

    DEFF Research Database (Denmark)

    Wiuf, Carsten; Donelly, P

    1999-01-01

    This paper is concerned with the structure of the genealogy of a sample in which it is observed that some subset of chromosomes carries a particular mutation, assumed to have arisen uniquely in the history of the population. A rigorous theoretical study of this conditional genealogy is given using...... coalescent methods. Particular results include the mean, variance, and density of the age of the mutation conditional on its frequency in the sample. Most of the development relates to populations of constant size, but we discuss the extension to populations which have grown exponentially to their present...

  7. GENDER GENEALOGY OF READING AS CULTURAL PRACTICE

    Directory of Open Access Journals (Sweden)

    N. Yu. Kryvda

    2017-06-01

    Full Text Available Purpose. The article is devoted to the cultural aspect of texts using in European culture. The paper found out methodological basis of correctly interpreting the term "practice" in the philosophical and sociological discourses. In the first case the concept reveals human nature; appealing to the field of ethics and intersubjective interactions. In sociological approach the term practice is contrasted to institutional life. It seems to be an organic; vital relevance of actions for contrast to the mechanically regulated community life. Methodology. The paper considered the typology of human intellectual conditions according to Kant’s divided into pure and practical reason. The last one directs action-willed individual efforts so as to meet the universal relevance and ethical coherence. Gottlieb Fichte interpreted practice reason as the way to combine intellectual intentions and material conditions of human being. G. W. F. Hegel enriched the concept with terms of "objectification" and "alienation” of labour. Karl Marx formulated the main features of activity approach to the human nature exploring. In sociological discourse the term practice is opposed to mechanically done actions (according to institutional normativity. Given the philosophical and sociological methodological contexts the reading is studied as activity that aimed emotional and volitional contact with sense. Originality. The paper analysed the genealogy of reading practices. There were selected two types of text perception – rapid "masculine" and prudent "women's" reading. Women salon environment of the XVIII-th century capitalistic Europe was the main condition for the forming of literary-aware public. The authors analysed the process of reading of the text-as-satisfaction and text-as-pleasure (R. Barthes. The work presents the overview of classical studies of sociocultural field: Thorstein Veblen; Vladimir Toporov; Rolan Barthes and contemporary researchers such as T. Markova

  8. Glottochronology as a heuristic for genealogical language relationships

    NARCIS (Netherlands)

    Wichmann, S.; Holman, E.W.; Müller, A.; Velupillai, V.; List, J.-M.; Belyaev, O.; Urban, M.; Bakker, D.

    2010-01-01

    This paper applies a computerized method related to that of glottochronology and addresses the question whether such a method is useful as a heuristic for identifying deep genealogical relations among languages. We first measure lexical similarities for pairs of language families that are normally

  9. The genealogy of samples in models with selection.

    Science.gov (United States)

    Neuhauser, C; Krone, S M

    1997-02-01

    We introduce the genealogy of a random sample of genes taken from a large haploid population that evolves according to random reproduction with selection and mutation. Without selection, the genealogy is described by Kingman's well-known coalescent process. In the selective case, the genealogy of the sample is embedded in a graph with a coalescing and branching structure. We describe this graph, called the ancestral selection graph, and point out differences and similarities with Kingman's coalescent. We present simulations for a two-allele model with symmetric mutation in which one of the alleles has a selective advantage over the other. We find that when the allele frequencies in the population are already in equilibrium, then the genealogy does not differ much from the neutral case. This is supported by rigorous results. Furthermore, we describe the ancestral selection graph for other selective models with finitely many selection classes, such as the K-allele models, infinitely-many-alleles models. DNA sequence models, and infinitely-many-sites models, and briefly discuss the diploid case.

  10. Academic Genealogy and Direct Calorimetry: A Personal Account

    Science.gov (United States)

    Jackson, Donald C.

    2011-01-01

    Each of us as a scientist has an academic legacy that consists of our mentors and their mentors continuing back for many generations. Here, I describe two genealogies of my own: one through my PhD advisor, H. T. (Ted) Hammel, and the other through my postdoctoral mentor, Knut Schmidt-Nielsen. Each of these pathways includes distingished scientists…

  11. Single and simultaneous binary mergers in Wright-Fisher genealogies.

    Science.gov (United States)

    Melfi, Andrew; Viswanath, Divakar

    2018-05-01

    The Kingman coalescent is a commonly used model in genetics, which is often justified with reference to the Wright-Fisher (WF) model. Current proofs of convergence of WF and other models to the Kingman coalescent assume a constant sample size. However, sample sizes have become quite large in human genetics. Therefore, we develop a convergence theory that allows the sample size to increase with population size. If the haploid population size is N and the sample size is N 1∕3-ϵ , ϵ>0, we prove that Wright-Fisher genealogies involve at most a single binary merger in each generation with probability converging to 1 in the limit of large N. Single binary merger or no merger in each generation of the genealogy implies that the Kingman partition distribution is obtained exactly. If the sample size is N 1∕2-ϵ , Wright-Fisher genealogies may involve simultaneous binary mergers in a single generation but do not involve triple mergers in the large N limit. The asymptotic theory is verified using numerical calculations. Variable population sizes are handled algorithmically. It is found that even distant bottlenecks can increase the probability of triple mergers as well as simultaneous binary mergers in WF genealogies. Copyright © 2018 Elsevier Inc. All rights reserved.

  12. Genealogical and evolutionary inference with the human Y chromosome.

    Science.gov (United States)

    Stumpf, M P; Goldstein, D B

    2001-03-02

    Population genetics has emerged as a powerful tool for unraveling human history. In addition to the study of mitochondrial and autosomal DNA, attention has recently focused on Y-chromosome variation. Ambiguities and inaccuracies in data analysis, however, pose an important obstacle to further development of the field. Here we review the methods available for genealogical inference using Y-chromosome data. Approaches can be divided into those that do and those that do not use an explicit population model in genealogical inference. We describe the strengths and weaknesses of these model-based and model-free approaches, as well as difficulties associated with the mutation process that affect both methods. In the case of genealogical inference using microsatellite loci, we use coalescent simulations to show that relatively simple generalizations of the mutation process can greatly increase the accuracy of genealogical inference. Because model-free and model-based approaches have different biases and limitations, we conclude that there is considerable benefit in the continued use of both types of approaches.

  13. Investigation of a baseline method for genealogical entity resolution

    NARCIS (Netherlands)

    Efremova, I.; Ranjbar-Sahraei, B.; Oliehoek, F.A.; Calders, T.G.K.; Tuyls, K.P.

    2014-01-01

    In this paper we study the application of entity resolution (ER) techniques on a real-world multi-source genealogical dataset. Our goal is to identify all persons involved in various notary acts and link them to their birth, marriage and death certificates. In order to evaluate the performance of a

  14. The total Somali clan genealogy : a preliminary sketch

    NARCIS (Netherlands)

    Abbink, J.

    1999-01-01

    This paper presents a preliminary genealogy of all Somali 'clans'. Somali kinship is based on patrilineal descent, but there are no equivalents in the Somali language for the words 'clan' and 'lineage'. The Somali terminology for the levels of social segmentation is complex, amongst others because

  15. Reconstruction of tomographic images from projections of a small number of views by means of mathematical programming

    International Nuclear Information System (INIS)

    Kobayashi, Fujio; Yamaguchi, Shoichiro

    1985-01-01

    Fundamental studies have been made on the application of mathematical programming to the reconstruction of tomographic images from projections of a small number of views without requiring any circular symmetry nor periodicity. Linear programming and quadratic programming were applied to minimize the quadratic sum of the residue and to finally obtain optimized reconstruction images. The mathematical algorithms were verified by the method of computer simulation, and the relationship between the number of picture elements and the number of iterations necessary for convergence was also investigated. The methods of linear programming and quadratic programming require fairly simple mathematical procedures, and strict solutions can be obtained within a finite number of iterations. Their only draw back is the requirement of a large quantity of computer memory. But this problem will be desolved by the advent of large fast memory devices in the near future. (Aoki, K.)

  16. Mathematics Practicum at St. Olaf College: Project-Based Learning through Academic Civic Engagement

    Science.gov (United States)

    Sanft, Rebecca; Ziegler-Graham, Kathryn

    2018-01-01

    The Mathematics Practicum has been offered at St. Olaf College for over 30 years. The Practicum is a 4-week, January Interim course where three teams of five students work on consulting problems solicited from area businesses, government agencies, and non-profit organizations. These problems have significant mathematical, statistical, and…

  17. Showing You're Working: A Project Using Former Pupils' Experiences to Engage Current Mathematics Students

    Science.gov (United States)

    Musto, Garrod

    2008-01-01

    To help students view mathematics in a more favourable light, a number of former pupils were contacted and asked to give details of how they use mathematics in their daily lives. This information was gathered through an online questionnaire or visits to the school to talk to pupils--a booklet of responses was also given to students. Attitudinally…

  18. Modeling Clinic for Industrial Mathematics: A Collaborative Project Under Erasmus+ Program

    DEFF Research Database (Denmark)

    Jurlewicz, Agnieszka; Nunes, Claudia; Russo, Giovanni

    2018-01-01

    Modeling Clinic for Industrial Mathematics (MODCLIM) is a Strategic Partnership for the Development of Training Workshops and Modeling Clinic for Industrial Mathematics, funded through the European Commission under the Erasmus Plus Program, Key Action 2: Cooperation for innovation and the exchang...

  19. Post secondary project-based learning in science, technology, engineering and mathematics

    Directory of Open Access Journals (Sweden)

    Rachel A Ralph

    2016-03-01

    Full Text Available Project-based learning (PjBL - to distinguish from problem-based learning - PBL has become a recurrent practice in K-12 classroom environments. As PjBL has become prominent in K-12 classrooms, it has also surfaced in post-secondary institutions.  The purpose of this paper is to examine the research that has studied a variety of science, technology, engineering and mathematic subjects using PjBL in post-secondary classrooms. Eleven articles (including qualitative, quantitative and mixed methods were included.  The format includes: an introduction and background (which defines PjBL and STEM, research methods, quality appraisal used, results, and a discussion, future research and a conclusion.  Two tables and two figures are included. In this paper, theoretical backgrounds and key terms were identified, followed by a literature review discussing four themes: content knowledge, interdisciplinary skills, collaboration and skill development for future education and careers.  Results suggested that there is a positive connection between content knowledge learning and PjBL in collaborative settings.  Additionally, some negative perceptions arose regarding teamwork situations.  Interdisciplinary skills were achieved, but quite limited in post-secondary classrooms.  PjBL and STEM were perceived to be important for future education and careers.  Future research needs to be completed and institutional curriculum changes informed by the results of this research need to occur to further explore interdisciplinary courses and the use of PjBL.

  20. Legendary genealogies of Byzantine Emperors and their families

    Directory of Open Access Journals (Sweden)

    Krsmanović Bojana T.

    2004-01-01

    Full Text Available Theoretically, the Byzantine Emperor was, just like in the times of the Roman Empire, chosen on the basis of his personal qualities and merits — by the grace of God, of course. Practically, the factors which determined the ascension of a person to the throne were much more complex, the methods of gaining power being multifarious. In consequence, the political philosophy was confronted with the question of whether it is virtue (aretç or origin (génoz that defines an Emperor. Independently of this rather theoretical question, however, and despite the claims that the personal qualities are decisive in the choice of the Emperor, the origin of the ruler played an important role in the consciousness of the Byzantines of all epochs. This is why great attention was paid to the creation of family trees, especially in the cases when the Emperor was of low origin (homo novus or when it was for some reason necessary to strengthen his legitimacy. The choice of the genealogy was not random: since it carried a clear political message, it was of utmost importance with whom the Emperor in power would be associated and whose historical deeds or legendary personality would serve as a moral model. Also important is the fact that the search of a "good family" was as a rule triggered by the need to confirm one's own virtue. Thus, genealogies often reflect a certain system of values, usually emphasizing morality, courage in war, care for the welfare of the country, piety, etc. The choice of the archetype depended, of course, on the needs of the ruler for whom the genealogy was created. All this allows us to consider legendary genealogies as an expression of the imperial ideology. Notwithstanding their chronological diversity, the Byzantine imperial genealogies display very similar characteristics, i.e. they contain stereotypical elements, many of which had been established already in the first centuries of the Eastern Empire. In the early Byzantine period, when

  1. Detecting negative selection on recurrent mutations using gene genealogy

    Science.gov (United States)

    2013-01-01

    Background Whether or not a mutant allele in a population is under selection is an important issue in population genetics, and various neutrality tests have been invented so far to detect selection. However, detection of negative selection has been notoriously difficult, partly because negatively selected alleles are usually rare in the population and have little impact on either population dynamics or the shape of the gene genealogy. Recently, through studies of genetic disorders and genome-wide analyses, many structural variations were shown to occur recurrently in the population. Such “recurrent mutations” might be revealed as deleterious by exploiting the signal of negative selection in the gene genealogy enhanced by their recurrence. Results Motivated by the above idea, we devised two new test statistics. One is the total number of mutants at a recurrently mutating locus among sampled sequences, which is tested conditionally on the number of forward mutations mapped on the sequence genealogy. The other is the size of the most common class of identical-by-descent mutants in the sample, again tested conditionally on the number of forward mutations mapped on the sequence genealogy. To examine the performance of these two tests, we simulated recurrently mutated loci each flanked by sites with neutral single nucleotide polymorphisms (SNPs), with no recombination. Using neutral recurrent mutations as null models, we attempted to detect deleterious recurrent mutations. Our analyses demonstrated high powers of our new tests under constant population size, as well as their moderate power to detect selection in expanding populations. We also devised a new maximum parsimony algorithm that, given the states of the sampled sequences at a recurrently mutating locus and an incompletely resolved genealogy, enumerates mutation histories with a minimum number of mutations while partially resolving genealogical relationships when necessary. Conclusions With their

  2. Evaluating the mathematical models to Solve Job Shop Problem with the Use of human resources specialists in projects

    Directory of Open Access Journals (Sweden)

    Renato Penha

    2012-10-01

    Full Text Available A project can be defined as a complex system. This requires the use of resources (human, material, technology, etc., allocated among alternative uses, as a means to achieve specific goals by the presence of constraints of different orders. The planning, allocation and prioritization of resources, including human resource specialists (HRE, is performed by means of single project management.This treatment can cause internal strife by using the same resource or even its underuse, and may worsen in software development environments due to the high degree of interdependence, uncertainty and risk of each project. This need is related to the so called Job Shop Problem (JSP. In this context, the objective of this study is to evaluate the mathematical models of genetic algorithm and optimization and their contributions to solve Job Shop Problem in software development projects with the use of human resources specialists.

  3. An Intervention for Early Mathematical Success: Outcomes from the Hybrid Version of the Building Math Readiness Parents as Partners (MRPP) Project

    Science.gov (United States)

    Kritzer, Karen L.; Pagliaro, Claudia M.

    2013-01-01

    The Building Math Readiness in Young Deaf/Hard-of-Hearing Children: Parents as Partners (MRPP) Project works with parents to increase the understanding of foundational mathematics concepts in their preschool deaf/hard-of-hearing (d/hh) children in preparation for formal mathematics education. A multiple-case/single-unit case study incorporating…

  4. An Examination of the Performance Gains of Culturally and Linguistically Diverse Students on a Mathematics Performance Assessment within the QUASAR Project.

    Science.gov (United States)

    Lane, Suzanne; And Others

    The performance of students from different racial or ethnic subgroups and of students receiving bilingual (Spanish and English) or monolingual (English only) instruction in mathematics was studied using students from schools in the QUASAR (Qualitative Understanding Amplifying Student Achievement and Reasoning) project, a mathematics education…

  5. The TIMSS Videotape Classroom Study: Methods and Findings from an Exploratory Research Project on Eighth-Grade Mathematics Instruction in Germany, Japan, and the United States.

    Science.gov (United States)

    Stigler, James W.; Gonzales, Patrick; Kawanaka, Takako; Knoll, Steffen; Serrano, Ana

    1999-01-01

    Describes the methods and preliminary findings of the Videotape Classroom Study, a video survey of eighth-grade mathematics lessons in Germany, Japan, and the United States. Part of the Third International Mathematics and Science study, this research project is the first study of videotaped records from national probability samples. (SLD)

  6. The genealogy and genetic viability of reintroduced Yellowstone grey wolves.

    Science.gov (United States)

    Vonholdt, Bridgett M; Stahler, Daniel R; Smith, Douglas W; Earl, Dent A; Pollinger, John P; Wayne, Robert K

    2008-01-01

    The recovery of the grey wolf in Yellowstone National Park is an outstanding example of a successful reintroduction. A general question concerning reintroduction is the degree to which genetic variation has been preserved and the specific behavioural mechanisms that enhance the preservation of genetic diversity and reduce inbreeding. We have analysed 200 Yellowstone wolves, including all 31 founders, for variation in 26 microsatellite loci over the 10-year reintroduction period (1995-2004). The population maintained high levels of variation (1995 H(0) = 0.69; 2004 H(0) = 0.73) with low levels of inbreeding (1995 F(IS) = -0.063; 2004 F(IS) = -0.051) and throughout, the population expanded rapidly (N(1995) = 21; N(2004) = 169). Pedigree-based effective population size ratios did not vary appreciably over the duration of population expansion (1995 N(e)/N(g) = 0.29; 2000 N(e)/N(g) = 0.26; 2004 N(e)/N(g) = 0.33). We estimated kinship and found only two of 30 natural breeding pairs showed evidence of being related (average r = -0.026, SE = 0.03). We reconstructed the genealogy of 200 wolves based on genetic and field data and discovered that they avoid inbreeding through a wide variety of behavioural mechanisms including absolute avoidance of breeding with related pack members, male-biased dispersal to packs where they breed with nonrelatives, and female-biased subordinate breeding. We documented a greater diversity of such population assembly patterns in Yellowstone than previously observed in any other natural wolf population. Inbreeding avoidance is nearly absolute despite the high probability of within-pack inbreeding opportunities and extensive interpack kinship ties between adjacent packs. Simulations showed that the Yellowstone population has levels of genetic variation similar to that of a population managed for high variation and low inbreeding, and greater than that expected for random breeding within packs or across the entire breeding pool. Although short

  7. Smooth Transition for Advancement to Graduate Education (STAGE) for Underrepresented Groups in the Mathematical Sciences Pilot Project: Broadening Participation through Mentoring

    Science.gov (United States)

    Eubanks-Turner, Christina; Beaulieu, Patricia; Pal, Nabendu

    2018-01-01

    The Smooth Transition for Advancement to Graduate Education (STAGE) project was a three-year pilot project designed to mentor undergraduate students primarily from under-represented groups in the mathematical sciences. The STAGE pilot project focused on mentoring students as they transitioned from undergraduate education to either graduate school…

  8. A Phenomenological Research Study of the Experience of Teachers in the Virgin Islands Teacher Enhancement in Mathematics and Science Project

    Science.gov (United States)

    Thurland, Karen C.

    The purpose of conducting this study was to describe the experience of elementary teachers in a mathematics and science staff development project in the U.S. Virgin Islands. The focus of this study was to describe the meaning teachers attribute to their experience in this three year project, in which many of the national mathematics and science reform efforts were implemented. A phenomenological approach was used in order to develop a complete picture of the teachers' experiences. Data collection consisted of interviews with seven elementary teachers. The data were subjective descriptions of the teachers pertaining to the initial summer institute, the follow-up sessions, and the new innovative methods. The transcendental phenomenological model was used. The textural and structural themes included enhanced learning and changes in teaching practice, and interactions with colleagues. From these themes, individual and composite textual descriptions of the experience of the teacher participants were developed. The synthesis of those descriptions illuminated the meanings and essence of their lived experience. The findings indicate that the essence of the experience was the development of a positive attitude towards the teaching of math and science. The teachers gained confidence in their ability to motivate students with the inquiry method and taught more math and science. The implications for the Virgin Islands Department of Education include establishing a partnership with the local university to offer staff development training in mathematics and science and to conduct evaluations of its training efforts.

  9. A Genealogical Look at Shared Ancestry on the X Chromosome.

    Science.gov (United States)

    Buffalo, Vince; Mount, Stephen M; Coop, Graham

    2016-09-01

    Close relatives can share large segments of their genome identical by descent (IBD) that can be identified in genome-wide polymorphism data sets. There are a range of methods to use these IBD segments to identify relatives and estimate their relationship. These methods have focused on sharing on the autosomes, as they provide a rich source of information about genealogical relationships. We hope to learn additional information about recent ancestry through shared IBD segments on the X chromosome, but currently lack the theoretical framework to use this information fully. Here, we fill this gap by developing probability distributions for the number and length of X chromosome segments shared IBD between an individual and an ancestor k generations back, as well as between half- and full-cousin relationships. Due to the inheritance pattern of the X and the fact that X homologous recombination occurs only in females (outside of the pseudoautosomal regions), the number of females along a genealogical lineage is a key quantity for understanding the number and length of the IBD segments shared among relatives. When inferring relationships among individuals, the number of female ancestors along a genealogical lineage will often be unknown. Therefore, our IBD segment length and number distributions marginalize over this unknown number of recombinational meioses through a distribution of recombinational meioses we derive. By using Bayes' theorem to invert these distributions, we can estimate the number of female ancestors between two relatives, giving us details about the genealogical relations between individuals not possible with autosomal data alone. Copyright © 2016 by the Genetics Society of America.

  10. Paradigma Kepariwisataan Bali Tahun 1930-An: Studi Genealogi Kepariwisataan Budaya

    OpenAIRE

    I Made Sendra

    2016-01-01

    This article analyses the connection between Baliseering discourse and the practice of Bali`s cultural tourism by applying the theory of hegemony from Gramsci and genealogy from Micheal Foucault as tools of analysis. It is very interesting topic to analyses especially in relation to the reconstruction of Baliseering discourse, the power knowledge emerged from Baliseering discourse, the articulation of it to open the space of Bali as historical cultural. Research shows that Baliseering is colo...

  11. A Genealogical Interpretation of Principal Components Analysis

    Science.gov (United States)

    McVean, Gil

    2009-01-01

    Principal components analysis, PCA, is a statistical method commonly used in population genetics to identify structure in the distribution of genetic variation across geographical location and ethnic background. However, while the method is often used to inform about historical demographic processes, little is known about the relationship between fundamental demographic parameters and the projection of samples onto the primary axes. Here I show that for SNP data the projection of samples onto the principal components can be obtained directly from considering the average coalescent times between pairs of haploid genomes. The result provides a framework for interpreting PCA projections in terms of underlying processes, including migration, geographical isolation, and admixture. I also demonstrate a link between PCA and Wright's fst and show that SNP ascertainment has a largely simple and predictable effect on the projection of samples. Using examples from human genetics, I discuss the application of these results to empirical data and the implications for inference. PMID:19834557

  12. Discrete Mathematics

    DEFF Research Database (Denmark)

    Sørensen, John Aasted

    2011-01-01

    The objectives of Discrete Mathematics (IDISM2) are: The introduction of the mathematics needed for analysis, design and verification of discrete systems, including the application within programming languages for computer systems. Having passed the IDISM2 course, the student will be able...... to accomplish the following: -Understand and apply formal representations in discrete mathematics. -Understand and apply formal representations in problems within discrete mathematics. -Understand methods for solving problems in discrete mathematics. -Apply methods for solving problems in discrete mathematics......; construct a finite state machine for a given application. Apply these concepts to new problems. The teaching in Discrete Mathematics is a combination of sessions with lectures and students solving problems, either manually or by using Matlab. Furthermore a selection of projects must be solved and handed...

  13. A mathematical model for crashing projects by considering time, cost, quality and risk

    Directory of Open Access Journals (Sweden)

    Amin Mahmoudi

    2017-01-01

    Full Text Available Employers are looking for reducing execution time and maintaining the quality of the projects that are the main objective of the projects. In this article, we focus on crashing projects by con-sidering different factors such as cost, time, quality and risk. For the proposed integer linear model, cost of conformance and cost of non-conformance are considered as parts of the costs of quality of deliverables in projects. The cost of conformance consists of the costs of training the project team, inspection and test of deliverables. The cost of non-conformance also includes costs of rework and scrap. Project risk management is one of the important aspects of the pro-jects. The present study also considers the impact of risks, which is highly applicable in projects with a high level of uncertainty. Results are presented using integer programming approach with the aim of minimizing the costs of the project.

  14. A Digital Storytelling Study Project on Mathematics Course with Preschool Pre-Service Teachers

    Science.gov (United States)

    Inan, Cemil

    2015-01-01

    Digital storytelling technique is based on a presentation of course content in a story form using multimedia tools. In this study, digital stories were designed for mathematics instruction with preschool pre-service teachers. At the end of the six-week study, preschool students viewed the digital stories created. The study aimed to determine the…

  15. Educational projectMathematics for secondary education (MATEM”, your academic task during the year 2012: participants´ perspective

    Directory of Open Access Journals (Sweden)

    Ana Lucía Alfaro Arce

    2014-06-01

    Full Text Available "MATEM" is a university outreach project. Among its objectives is to improve the mathematics education at the high school level and to accomplish it public universities work together with high school´s teachers and students. The study´s aim was to research various aspects of MATEM Project to order to evaluate its development and consider recommendations for making decisions. This paper summarizes the perceptions of high school students enrolled during 2012 in courses Precalculus and Calculus, moreover the opinion of mathematics teachers. The main results were that MATEM is an academic activity attractive for math teachers and student population from different regions of the country, although sometimes are not available the necessary conditions to develop it in their respective institutions, to have passed a university course, get more practice for the standard test at the end of high school, increase their math skills and prepare for college courses were the aspects that motivate students to enroll in the project, however the development of reasoning skills and abilities were more frequently pointed by respondents.

  16. Fundamental remote science research program. Part 2: Status report of the mathematical pattern recognition and image analysis project

    Science.gov (United States)

    Heydorn, R. P.

    1984-01-01

    The Mathematical Pattern Recognition and Image Analysis (MPRIA) Project is concerned with basic research problems related to the study of he Earth from remotely sensed measurements of its surface characteristics. The program goal is to better understand how to analyze the digital image that represents the spatial, spectral, and temporal arrangement of these measurements for purposing of making selected inferences about the Earth. This report summarizes the progress that has been made toward this program goal by each of the principal investigators in the MPRIA Program.

  17. Discrete Mathematics

    DEFF Research Database (Denmark)

    Sørensen, John Aasted

    2010-01-01

    The introduction of the mathematics needed for analysis, design and verification of discrete systems, including applications within programming languages for computer systems. Course sessions and project work. Semester: Spring 2010 Ectent: 5 ects Class size: 18......The introduction of the mathematics needed for analysis, design and verification of discrete systems, including applications within programming languages for computer systems. Course sessions and project work. Semester: Spring 2010 Ectent: 5 ects Class size: 18...

  18. Discrete Mathematics

    DEFF Research Database (Denmark)

    Sørensen, John Aasted

    2010-01-01

    The introduction of the mathematics needed for analysis, design and verification of discrete systems, including applications within programming languages for computer systems. Course sessions and project work. Semester: Autumn 2010 Ectent: 5 ects Class size: 15......The introduction of the mathematics needed for analysis, design and verification of discrete systems, including applications within programming languages for computer systems. Course sessions and project work. Semester: Autumn 2010 Ectent: 5 ects Class size: 15...

  19. MATHEMATICAL MODEL DESIGNATED FOR THE ASSESSMENT OF THE INTEGRATED ENVIRONMENTAL LOAD PRODUCED BY A BUILDING PROJECT

    OpenAIRE

    Lapidus Azariy Abramovich; Berezhnyy Aleksandr Yurevich

    2012-01-01

    In the paper, the author proposes a mathematical model designated for the assessment of the ecological impact produced on the environment within the territory of the construction site. Integrated index EI (Environmental Index) is introduced as a vehicle designated for the evaluation of the ecological load. EI represents the intensity of the ecological load, or a generalized and optimized parameter reflecting the intensity of the anthropogenic impact of the construction site onto the natural e...

  20. The Color of Giftedness: A Policy Genealogy Implicating Educators Past, Present, and Future

    Science.gov (United States)

    Mansfield, Katherine Cumings

    2016-01-01

    This article offers a critical rereading of gifted education in the United States using a genealogical framework as defined by postcolonial theory. Using genealogy is appropriate because it sets the education profession within a family research tradition, implies the close connection between past and present, and enables us to systematically trace…

  1. The Jamaica Letter and its intellectual genealogy

    Directory of Open Access Journals (Sweden)

    Germán A. de la Reza

    2018-01-01

    Full Text Available ABSTRACT One of the fundamental objectives of The Jamaica Letter is the reflection on the features that should have the international order after the fall of the Spanish Empire. For its organization, Simon Bolívar appeals to the amphictyonic assemblies of classical Greece and invokes the Pan-European project of the Abbe Saint Pierre. This article traces the documentary sources from which Bolivar derives his notion of confederal union and inspires the unions treaties from 1822 to 1826.

  2. Statistical Content in Middle Grades Mathematics Textbooks

    Science.gov (United States)

    Pickle, Maria Consuelo Capiral

    2012-01-01

    This study analyzed the treatment and scope of statistical concepts in four, widely-used, contemporary, middle grades mathematics textbook series: "Glencoe Math Connects," "Prentice Hall Mathematics," "Connected Mathematics Project," and "University of Chicago School Mathematics Project." There were three…

  3. Assessment of epidemic projections using recent HIV survey data in South Africa: a validation analysis of ten mathematical models of HIV epidemiology in the antiretroviral therapy era

    NARCIS (Netherlands)

    Eaton, J.W.; Bacaer, N.; Bershteyn, A.; Cambiano, V.; Cori, A.; Dorrington, R.E.; Fraser, C.; Gopalappa, C.; Hontelez, J.A.; Johnson, L.F.; Klein, D.J.; Phillips, A.N.; Pretorius, C.; Stover, J.; Rehle, T.M.; Hallett, T.B.

    2015-01-01

    BACKGROUND: Mathematical models are widely used to simulate the effects of interventions to control HIV and to project future epidemiological trends and resource needs. We aimed to validate past model projections against data from a large household survey done in South Africa in 2012. METHODS: We

  4. Mitochondrial replacement techniques: egg donation, genealogy and eugenics.

    Science.gov (United States)

    Palacios-González, César

    2016-03-01

    Several objections against the morality of researching or employing mitochondrial replacement techniques have been advanced recently. In this paper, I examine three of these objections and show that they are found wanting. First I examine whether mitochondrial replacement techniques, research and clinical practice, should not be carried out because of possible harms to egg donors. Next I assess whether mitochondrial replacement techniques should be banned because they could affect the study of genealogical ancestry. Finally, I examine the claim that mitochondrial replacement techniques are not transferring mitochondrial DNA but nuclear DNA, and that this should be prohibited on ethical grounds.

  5. Use of a genealogical database demonstrates heritability of pulmonary fibrosis.

    Science.gov (United States)

    Scholand, Mary Beth; Coon, Hilary; Wolff, Roger; Cannon-Albright, Lisa

    2013-10-01

    Pulmonary fibrosis (PF) is a progressive fatal disease of unknown etiology. Identification of risk genes and pathways will enhance our understanding of this disease. Analysis of Utah genealogical resources has shown previously strong evidence for a genetic contribution to other disease, such as cancer. This approach has led to gene discovery in diseases, such as breast cancer and colon cancer and is used here for PF to quantify the heritability. We hypothesize that there is a heritable contribution to death from PF and use existing genealogic and death certificate data to examine patterns of relatedness amongst individuals who have died of PF. We analyzed familial clustering of individuals who died from PF using the Utah Population Database, a unique population-based genealogical resource that has been linked to death certificates dating from 1904. We identified 1,000 individuals with at least three generations of genealogy data and a cause of death documented as PF (cases). We estimated the relative risk (RR) of death from PF among the first-, second-, and third-degree relatives of cases. We also tested the hypothesis of excess relatedness among the cases by comparing the average pairwise relatedness of all cases to the average pair-wise relatedness of 1,000 sets of matched controls. We observed significantly increased risk for death from PF among the first- (RR = 4.69), second- (RR = 1.92), and third-degree relatives (RR = 1.14) of cases. The average relatedness of the 1,000 cases was significantly higher than the expected average relatedness of matched control sets (p < 0.001). When close (first- and second-degree) relationships were ignored, significantly increased relatedness remained (p = 0.002). Our results demonstrate significant clustering among both close and distant relatives, providing strong support for genetic contributions to death from PF. High-risk pedigrees derived from this unique resource may help identify new risk genes and gene

  6. [Archaeology and genealogy as methodological options of nursing research].

    Science.gov (United States)

    Azevedo, Rosemeiry Capriata de Souza; Ramos, Flavia Regina Souza

    2003-01-01

    This article is based on the historical contextualization about the development of research in nursing, presents the categories/lines of interest that support the human knowledge applied in the Doctorate Thesis in Nursing in Brazil, points out the archeological and genealogical methods proposed by Michel Foucault, and their possibility to make more difficult the day-to-day tasks of the nursing profession Whether in Institutions, Public Policies, Health Reform, and Vocational Training, in the attempt to understand which strategies, challenges, knowledge base, and practices have influenced the building of the subjects.

  7. Haim Yacobi, Israel and Africa: A Genealogy of Moral Geography

    OpenAIRE

    Levin, Ayala

    2017-01-01

    Haim Yacobi’s Israel and Africa: A Genealogy of Moral Geography boldly outlines the significant role the African continent has played in Israel’s political and cultural self-fashioning. Like its Middle Eastern setting, Africa’s geographic proximity and the web of ties this proximity entails are denied in the Israeli society, all the while the continent is produced as Israel’s “other.” Through its relationships with Africa, the author argues, Israel constitutes itself as Western, modern, enlig...

  8. The genealogical decomposition of a matrix population model with applications to the aggregation of stages.

    Science.gov (United States)

    Bienvenu, François; Akçay, Erol; Legendre, Stéphane; McCandlish, David M

    2017-06-01

    Matrix projection models are a central tool in many areas of population biology. In most applications, one starts from the projection matrix to quantify the asymptotic growth rate of the population (the dominant eigenvalue), the stable stage distribution, and the reproductive values (the dominant right and left eigenvectors, respectively). Any primitive projection matrix also has an associated ergodic Markov chain that contains information about the genealogy of the population. In this paper, we show that these facts can be used to specify any matrix population model as a triple consisting of the ergodic Markov matrix, the dominant eigenvalue and one of the corresponding eigenvectors. This decomposition of the projection matrix separates properties associated with lineages from those associated with individuals. It also clarifies the relationships between many quantities commonly used to describe such models, including the relationship between eigenvalue sensitivities and elasticities. We illustrate the utility of such a decomposition by introducing a new method for aggregating classes in a matrix population model to produce a simpler model with a smaller number of classes. Unlike the standard method, our method has the advantage of preserving reproductive values and elasticities. It also has conceptually satisfying properties such as commuting with changes of units. Copyright © 2017 Elsevier Inc. All rights reserved.

  9. A Genealogy of (post-Soviet Dependency: Disabling Productivity

    Directory of Open Access Journals (Sweden)

    Cassandra Hartblay

    2014-02-01

    Full Text Available Nancy Fraser and Linda Gordon's 1994 article “A Genealogy of Dependency: Tracing a Keyword of the US Welfare State” explored the historical emergence of "dependency" as a moral category of post-industrial American state. In this article, I engage their framework to explore the genealogy of dependency in America's post-industrial sister, the post-Soviet Russian Federation. I also add disability as a core element of 'dependency' that was largely absent from Fraser and Gordon's original analysis. Considering cross-cultural translation, I ask how Russian deployments of three words that all relate to a concept of interdependence align with and depart from American notions of dependency, and trace historical configurations of the Soviet welfare state vis-a-vis disability. To do so, I draw on historical and cultural texts, linguistic comparisons, secondary sources, and ethnographic research. Given this analysis, I argue that rather than a Cold War interpretation of the Soviet Union and the US as oppositional superpowers in the 20th century, a liberatory disability studies framework suggests that in the postindustrial era the Soviet Union and the United States emerged as dual regimes of productivity. I suggest that reframing postsocialism as a global condition helps us to shift considerations of disability justice from a critique of capitalism to a critique of productivity.    Keywords: dependency, disability, citizenship, russia, productivity

  10. An academic genealogy on the history of American field primatologists.

    Science.gov (United States)

    Kelley, Elizabeth A; Sussman, Robert W

    2007-03-01

    In this paper, we present the academic genealogy of American field primatologists. The genealogy has been compiled to formally document the historical record of this young field. Data have been collected from three main sources: 1) e-mail surveys, 2) library and Internet research, and 3) verbal communication through forums such as American Association of Physical Anthropology meetings. Lineages of primatologists have been graphically displayed using Microsoft Visio. As of September 2005, 672 names and 239 affiliated universities, organizations and institutions have been recorded in 19 lineages. Five hundred and thirty-eight of the 672 names, 80.1%, are field primatologists. The Hooton/Washburn lineage is the largest; 60.6% of the recorded field primatologists are linked to this lineage. In addition, four of the five professors who have mentored a comparable number of field primatologists at American universities since Washburn are linked to the Hooton/Washburn lineage; and the school where Washburn mentored a majority of his students, UC-Berkeley, continues to have the highest overall graduation record for this subdiscipline. However, the field of primatology has been diversifying since the 1960s, and different universities are now responsible for graduating a substantial number of primatologists. We conclude that while the Hooton/Washburn lineage has remained remarkably homogenous in its anthropological focus, the field is also becoming increasingly enriched by primatologists who have had training in fields such as zoology, psychology, and ecology both in the United States and abroad. (c) 2006 Wiley-Liss, Inc.

  11. Counselling against HIV in Africa: a genealogy of confessional technologies.

    Science.gov (United States)

    Nguyen, Vinh-Kim

    2013-01-01

    This paper contextualises counselling within a broader historical formation that links disclosure to healing and deploys confessional technologies to incite disclosure and awareness of the mysterious substance of the self. Foucault's argument that sexuality was the privileged arena for using confessional technologies to 'produce' the truth of the self is particularly relevant in light of the diffusion of counselling practices in Africa in the wake of the HIV epidemic, particularly with their emphasis on inciting appropriate sexual behaviour. Examination of the historical assemblage of counselling practices shows how they articulate what the self is, the nature of truth and a politics of language. This paper focuses on the genealogy of four key assumptions that express this confessional reason. These are that: (1) people can be 'empowered' to have control on their own lives by working on themselves, (2) secrets untold become pathogens, (3) the ability to heal requires that one first overcome personal illness, (4) the experience of sharing secrets is cathartic and healing. The genealogy intertwines four strands: that of the Unconscious as revealed by Freud and his followers, attempts to treat shell-shocked veterans of World War I, group psychotherapy and participatory research after World War II.

  12. Keeping the Genealogical Structure of Paternal Breed Nuclei in Pigs

    Directory of Open Access Journals (Sweden)

    Maria Voiculescu

    2012-05-01

    Full Text Available For a long period of time pigs as farm animals were considered producing a single ware, pork. Not very long ago the pork market became interested in lean meet. Some breeders tried to have it from the old breeds and lave a lent genetic progress. Other breeders decided to follow the hybridization schemes used in poultry to produce broilers. But in strains with high daily gain and gross muscles the sows fertility declined and by then by disjunction selection they have isolated strains of high fertility. Then the final animal for the market was the cross piglet obtained from these two kinds of strains or lines. The third kind of breeders decided to specializing breeds, selected for as much as possible muscle mass as paternal breeds and breeds specialized for high fertility as maternal breeds. The present paper will present the movement taking place in the genealogy of a breed nucleus of 200sows with closed reproduction. The goal of the families’ movement analysis is to find out how to ensure a convenient genealogy structure preventing consanguinity when some families are extinct by selection for daily gain.

  13. Mathematics for secondary education project (Matem-UNA: perception of students about of the courses received and the profesional careers they selected for higher education

    Directory of Open Access Journals (Sweden)

    Ana Lucía Alfaro Arce

    2013-03-01

    Full Text Available This paper summarizes the opinions of students who have enrolled in the Precalculus course offered by the MATEM project. The aim is to systematize the views expressed by the students enrolled in MATEM, which are related to general aspects of the project, and also to know the professional areas these students select when entering to the university. The information for this study was collected through two questionnaires administered to the participating students during 2005-2009. The most relevant results are the following: the students listed benefits from MATEM such as the opportunity to practice for their Mathematics test (Ministry of Education exam, obtaining new knowledge and developing mathematical and reasoning skills. Most students would recommend others to participate in the project. Regarding the careers that students pursue, it was found a preference for higher studies in public universities at Costa Rica; these majors include mathematics courses in their curriculum (Engineering, Economics, Statistics, Medicine, among others.

  14. The Analysis of Geometrical Reasoning Ability Viewed from Self-Efficacy on Connected Mathematic Project (CMP Learning Etnomathematics-Based

    Directory of Open Access Journals (Sweden)

    Desi Dwi Damaryanti

    2017-11-01

    Full Text Available The purpose of this research was to know the geometrical reasoning ability of the students viewed from the self-efficacy through the learning of  Connected Mathematic Project (CMP ethnomathematic-based. The type of this research was qualitative which was descriptive. To obtained the validity of the qualitative data, the checking technique used in this research was sources triangulation, which had been done by comparing the suitability of the obtained data from the results of the interview and the test. Population of this research was the students of grade VIII at SMP Negeri 1 Sidoharjo and the sample was the students from VIII A Class. At the final, 12 research subjects were chosen to represent the group of level 1 self-efficacy, level 2 self-efficacy, level 3 self-efficacy, level 4 self efficacy, level 5 self-efficacy, and level 6 self-efficacy. In this research, there was a finding which shows us that the students with high self-efficacy had low ability to finish the geometrical reasoning ability test, while the students with low self-efficacy had the ability to finish the geometrical reasoning ability test. The factors which affected the finding were the motivations and the interest of learning mathematics which was affecting the attitude of the students in the classroom.

  15. Discrete Mathematics

    DEFF Research Database (Denmark)

    Sørensen, John Aasted

    2011-01-01

    ; construct a finite state machine for a given application. Apply these concepts to new problems. The teaching in Discrete Mathematics is a combination of sessions with lectures and students solving problems, either manually or by using Matlab. Furthermore a selection of projects must be solved and handed...... to accomplish the following: -Understand and apply formal representations in discrete mathematics. -Understand and apply formal representations in problems within discrete mathematics. -Understand methods for solving problems in discrete mathematics. -Apply methods for solving problems in discrete mathematics...... to new problems. Relations and functions: Define a product set; define and apply equivalence relations; construct and apply functions. Apply these concepts to new problems. Natural numbers and induction: Define the natural numbers; apply the principle of induction to verify a selection of properties...

  16. MATHEMATICAL MODEL DESIGNATED FOR THE ASSESSMENT OF THE INTEGRATED ENVIRONMENTAL LOAD PRODUCED BY A BUILDING PROJECT

    Directory of Open Access Journals (Sweden)

    Lapidus Azariy Abramovich

    2012-10-01

    The theoretical background of the proposed approach consists in an integrated methodology implemented in the system engineering of construction projects. A building system may be represented as the aggregate of all stages of construction works and participants involved in them. The building system is object-oriented, and it is implemented under the impact of pre-determined environmental factors. The core constituent of the building system represents a Production Technology Module (PTM, or summarized groups of processes. The model formula designated for the assessment of the intensity of the ecological load produced by the construction project onto the environment may be represented as follows:

  17. Technological Education for the Rural Community (TERC) Project: Technical Mathematics for the Advanced Manufacturing Technician

    Science.gov (United States)

    McCormack, Sherry L.; Zieman, Stuart

    2017-01-01

    Hopkinsville Community College's Technological Education for the Rural Community (TERC) project is funded through the National Science Foundation Advanced Technological Education (NSF ATE) division. It is advancing innovative educational pathways for technological education promoted at the community college level serving rural communities to fill…

  18. Instructional Coding System for Mathematics Program of Studies. MET, A Title IV-C Project.

    Science.gov (United States)

    Fairfax County Public Schools, VA. Dept. of Instructional Services.

    This document is part of the Management for Effective Teaching (MET) support kit, a pilot project designed by the Fairfax County (Virginia) Public Schools to assist elementary school teachers in planning, managing, and implementing the county's Program of Studies (POS). This document provides an alpha-numeric coding system to be used in…

  19. Mathematical modeling of project management in logistics systems based on two-dimensional random vector

    Science.gov (United States)

    Glushkova, Yu O.; Gordashnukova, O. Yu; Pahomova, A. V.; Shatohina, S. P.; Filippov, D. V.

    2018-05-01

    The modern markets are characterized by fierce competition, constantly changing demand, increasing demands of consumers, shortening of the life cycle of goods and services in connection with scientific and technological progress. Therefore, for survival, modern logistic systems of industrial enterprises must be constantly improved. Modern economic literature is represented by a large volume of publications on various aspects of the studied issues. They consider the issues of project management in the logistics system that inevitably encounter with triple Limited. It initially describes the balance between project content, cost, and time. Later it was suggested to either replace the content with quality or add a fourth criterion. Therefore it is possible to name such limitation as triple or four-criteria limitation.

  20. Model program for the recruitment and preparation of high ability elementary mathematics/science teachers: A collaborative project among scientists, teacher educators and classroom teachers

    Energy Technology Data Exchange (ETDEWEB)

    1993-12-01

    This teacher education program will provide a model for recruiting, educating and retaining high ability students to become mathematics and science lead teachers in elementary schools. The quality experiences and support provided these students will help them develop the knowledge and attitudes necessary to provide leadership for elementary mathematics and science programs. Students will have research experiences at the Ames Laboratory, high quality field experiences with nationally recognized mathematics and science teachers in local schools and opportunities to meaningfully connect these two experiences. This program, collaboratively designed and implemented by scientists, teacher educators and classroom teachers, should provide a replicatable model for other teacher education institutions. In addition, materials developed for the project should help other laboratories interface more effectively with K-8 schools and help other teacher education programs incorporate real science and mathematics experience into their curriculum.

  1. Intercoalescence time distribution of incomplete gene genealogies in temporally varying populations, and applications in population genetic inference.

    Science.gov (United States)

    Chen, Hua

    2013-03-01

    Tracing back to a specific time T in the past, the genealogy of a sample of haplotypes may not have reached their common ancestor and may leave m lineages extant. For such an incomplete genealogy truncated at a specific time T in the past, the distribution and expectation of the intercoalescence times conditional on T are derived in an exact form in this paper for populations of deterministically time-varying sizes, specifically, for populations growing exponentially. The derived intercoalescence time distribution can be integrated to the coalescent-based joint allele frequency spectrum (JAFS) theory, and is useful for population genetic inference from large-scale genomic data, without relying on computationally intensive approaches, such as importance sampling and Markov Chain Monte Carlo (MCMC) methods. The inference of several important parameters relying on this derived conditional distribution is demonstrated: quantifying population growth rate and onset time, and estimating the number of ancestral lineages at a specific ancient time. Simulation studies confirm validity of the derivation and statistical efficiency of the methods using the derived intercoalescence time distribution. Two examples of real data are given to show the inference of the population growth rate of a European sample from the NIEHS Environmental Genome Project, and the number of ancient lineages of 31 mitochondrial genomes from Tibetan populations. © 2013 Blackwell Publishing Ltd/University College London.

  2. Genealogy of Biopolitics: The Biology of the State

    Directory of Open Access Journals (Sweden)

    Mikołaj Ratajczak

    2013-01-01

    Full Text Available The aim of the paper is to analyze a popular pseudo-scientific discoursein Germany in the twenties that developed an idea of a state as a living organism.The discourse was sometimes named “the biology of the state”. The aim ofthis analysis is to provide a genealogy of the term “biopolitics” that was first usedby a Swedish theoretician of the biology of the state Rudolf Kjellén and to showthe influence, that the idea of the biology of the state had on the development ofthe Nazi biopolitics. The paper reconstructs the main aspects of Michel Foucault’sgenealogy of the modern biopolitics and subsequently shows, how the idea of thebiology of the state constituted the extreme development of the naturalistic tendenciesdiagnosed by Foucault in the modern theories of (biopolitics.

  3. Sex and monstrosity. A genealogy of the sexual police

    Directory of Open Access Journals (Sweden)

    Antón Fernández de Rota Irimia

    2015-07-01

    Full Text Available This essay outlines different forms of Western sexual police from the Seventeen Century to the present. The genealogy will approach the problem from the point of view of hermaphroditism and transvestism. By “sexual police” I mean the determinations, forms, norms and ethos that defines sex through times, as well as the categories of which it is composed, and what is permitted and is possible to do, see and say through these sexual categories. This essay, pays special attention to the fears and its embodiment in some paradigmatic figures. In particular, it analyzes the historical meaning of sexual “monstrosity”, key to understand the different polices, including the own sexual police of gender feminism.

  4. GENEALOGI DAN PENYEBARAN THARIQAH QADIRIYAH WA NAQSHABANDIYAH DI JAWA

    Directory of Open Access Journals (Sweden)

    Aly Mashar

    2016-11-01

    Full Text Available This article investigates the geneology and spread of Thariqah Qadiriyah wa Naqshabandiyah in Java. Based on the previous literatures (Dhofier, Martin van Bruinessen, Zulkifli, and Mulyati, it was found out that in Java the genealogy of the thariqah formed by Syekh Ahmad Khatib Sambas directed to the three primary khalifah, i.e. Syekh Abdul Karim Banten, Syekh Ahmad Thalhah Cirebon, and Syekh Muhammad Hasbullah Madura, then spread out across Java Island through the four centers (on 1970s, such as Suryalaya, Rejoso, Mranggen, and Pangentongan. However, the writer found out that there were four khalifahs, including Syekhona Kholil Bangkalan Madura; with the nine dissemination centers (in 1970s including Berjan Purworejo, Sawah Pulo Surabaya, Cukir Jombang, Kencong Kediri, and Dawe Kudus.

  5. MODEL MISSOURI MATHEMATICS PROJECT TERPADU DENGAN TIK UNTUK MENINGKATKAN PEMECAHAN MASALAH DAN KEMANDIRIAN BELAJAR

    Directory of Open Access Journals (Sweden)

    Nailil Faroh

    2014-02-01

    , and TKPM.Obtaining data based on collecting documents, questionnaire, observation, interview, and tests.The data processing effectiveness test included test completeness, effect of  test, test differenceand improvement test. The results showed: learning developed device valid with average skor4.14;learning developed device is practical based on 83,10% positive response of  students andscore of  the ability teachers to manage the class is 4.26; the learning mathematics effectiveresult because average results of  experimental class problem solving abilities is 77,33 exceedKKM 70, average experimental grade higher than control, and there is positive effect betweenindependence learningand problem solving skills to problem solving ability many 79%; therean increase independence learning, problem solving skills, and problem solving ability.

  6. [Clinical genealogical and molecular genetic study of patients with mental retardation].

    Science.gov (United States)

    Hryshchenko, N V; B'ichkova, A M; Lyvshyts, A B; Kravchenko, S A; Pampukha, V N; Solov'ev, A A; Kucherenko, A M; Tatarskiĭ, P F; Afanas'eva, N A; Dubrovskaia, E V; Patskun, Ie Y; Zymak-Zakutnaia, N O; Nykytchina, T V; Lohysh, S Iu; Lyvshyts, L A

    2012-01-01

    The results of clinical, genealogical, cytogenetic and molecular genetic studies of 113 patients from 96 families with different forms of mental retardation from Ukraine are presented. This study was held as part of the CHERISH project of the 7-th Framework Program. The aim of the project is to improve diagnostics of mental retardation in children in Eastern Europe and Central Asia through detailed analysis of known chromosomal and gene's aberrations and to find the new gene-candidates that cause mental retardation. All patients have normal chromosome number (46XY or 46XX). The cases with fragile-X syndrome were eliminated using molecular genetic methods. Genome rearrangements were found among 28 patients using cytogenetic analysis, multiplex ligation-dependent probe amplification (MLPA analysis) ofsubtelomeric regions and array-based comparative genomic hybridisation (array CGH screening). In 10 cases known pathogenic CNV's were identified, 11 cases are unknown aberrations; their pathogenicity is being determined. The rest cases are known nonpathogenic gene rearrangements. Obtained results show the strong genetic heterogeneity of hereditary forms of mental retardation. The further studies will allow to identificate genes candidates and certain mutations in these genes that may be associated with this pathology.

  7. Erving Goffman: vida y genealogía intelectual

    Directory of Open Access Journals (Sweden)

    Urteaga, Eguzki

    2010-06-01

    Full Text Available What does happen when two or more persons are in a face to face situation? How the interaction develops when one of them commits an infamy, presents a physical disability or if he is considered as a mental patient? Erving Goffman (1922-1982, of Canadian origin, has tried to answer to this type of questions along his research life. It result an abundant, exciting but also controversial work because if some analysts see in Goffman the principal sociologist of the second half of the 20th century, others think that his analyses only constitute the reflection of a «petit bourgeois» point of view on the urban American society. This article presents both the life and the intellectual genealogy of this sociologist.

    ¿Qué sucede cuando dos o más personas se encuentran en una situación de cara a cara? ¿Cómo se desarrolla la interacción cuando una de ellas comete una torpeza o presenta una discapacidad física o si está considerada como una enferma mental? Erving Goffman (1922-1982, de origen canadiense, ha intentado contestar a ese tipo de preguntas a lo largo de su vida investigadora. Resulta de todo ello una obra abundante, apasionante pero también controvertida, puesto que algunos analistas ven en Goffman el mayor sociólogo de la segunda mitad del siglo XX mientras que otros consideran que sus análisis solo constituyen el reflejo de un punto de vista «pequeño-burgués» sobre la sociedad urbana americana. Este artículo presenta tanto la vida como la genealogía intelectual de ese sociólogo.

  8. Guidelines for Preservation, Conservation, and Restoration of Local History and Local Genealogical Materials.

    Science.gov (United States)

    RQ, 1993

    1993-01-01

    Presents guidelines adopted by the American Library Association (ALA) relating to the preservation, conservation, and restoration of local history and local genealogical materials. Topics addressed include assessing preservation needs; developing a plan; choosing appropriate techniques, including microduplication, photoduplication, electronic…

  9. Emancipating Intellectual Property from Proprietarianism: Drahos, Foucault, and a Quasi-Genealogy of IP

    Directory of Open Access Journals (Sweden)

    Wendyl Luna

    2018-01-01

    Full Text Available This paper argues that Peter Drahos undertakes a partial Foucauldian genealogy by emancipating intellectual property (IP from proprietarianism. He demonstrates the dominance of proprietarianism in IP by drawing sample practices from trademark, copyright, and patent laws, and then seeks to displace the proprietarian dominance with instrumentalism, which reconstitutes IP as a “liberty-intruding privilege.” Ironically, despite doing a genealogy, Drahos does not eradicate sovereignty altogether as Michel Foucault insists, but instead determines IP as a “sovereignty mechanism” that has a “sovereignty effect.” After explaining what Foucauldian genealogy is, the paper will explain how Drahos undertakes a genealogy of IP, while highlighting the limitations of Drahos’ analysis from a Foucauldian perspective.

  10. [Genealogy of the Meckel anatomy family (from Hem[b]sbach)].

    Science.gov (United States)

    Viebig, Michael; Schultka, Rüdiger

    2002-11-01

    The main goal of our investigations is to complete the genealogy of the famous Meckel dynasty. It is important to answer a lot of questions which have remained unanswered until now. During the investigations we were able to find the names of three children who died early and were dissected by their father Philipp Friedrich Theodor Meckel (1755-1803). Besides, it was possible to extend distinctly our knowledge of the various genealogical lines of the Meckel family.

  11. The effect of using genealogy-based haplotypes for genomic prediction.

    Science.gov (United States)

    Edriss, Vahid; Fernando, Rohan L; Su, Guosheng; Lund, Mogens S; Guldbrandtsen, Bernt

    2013-03-06

    Genomic prediction uses two sources of information: linkage disequilibrium between markers and quantitative trait loci, and additive genetic relationships between individuals. One way to increase the accuracy of genomic prediction is to capture more linkage disequilibrium by regression on haplotypes instead of regression on individual markers. The aim of this study was to investigate the accuracy of genomic prediction using haplotypes based on local genealogy information. A total of 4429 Danish Holstein bulls were genotyped with the 50K SNP chip. Haplotypes were constructed using local genealogical trees. Effects of haplotype covariates were estimated with two types of prediction models: (1) assuming that effects had the same distribution for all haplotype covariates, i.e. the GBLUP method and (2) assuming that a large proportion (π) of the haplotype covariates had zero effect, i.e. a Bayesian mixture method. About 7.5 times more covariate effects were estimated when fitting haplotypes based on local genealogical trees compared to fitting individuals markers. Genealogy-based haplotype clustering slightly increased the accuracy of genomic prediction and, in some cases, decreased the bias of prediction. With the Bayesian method, accuracy of prediction was less sensitive to parameter π when fitting haplotypes compared to fitting markers. Use of haplotypes based on genealogy can slightly increase the accuracy of genomic prediction. Improved methods to cluster the haplotypes constructed from local genealogy could lead to additional gains in accuracy.

  12. The performance of phylogenetic algorithms in estimating haplotype genealogies with migration.

    Science.gov (United States)

    Salzburger, Walter; Ewing, Greg B; Von Haeseler, Arndt

    2011-05-01

    Genealogies estimated from haplotypic genetic data play a prominent role in various biological disciplines in general and in phylogenetics, population genetics and phylogeography in particular. Several software packages have specifically been developed for the purpose of reconstructing genealogies from closely related, and hence, highly similar haplotype sequence data. Here, we use simulated data sets to test the performance of traditional phylogenetic algorithms, neighbour-joining, maximum parsimony and maximum likelihood in estimating genealogies from nonrecombining haplotypic genetic data. We demonstrate that these methods are suitable for constructing genealogies from sets of closely related DNA sequences with or without migration. As genealogies based on phylogenetic reconstructions are fully resolved, but not necessarily bifurcating, and without reticulations, these approaches outperform widespread 'network' constructing methods. In our simulations of coalescent scenarios involving panmictic, symmetric and asymmetric migration, we found that phylogenetic reconstruction methods performed well, while the statistical parsimony approach as implemented in TCS performed poorly. Overall, parsimony as implemented in the PHYLIP package performed slightly better than other methods. We further point out that we are not making the case that widespread 'network' constructing methods are bad, but that traditional phylogenetic tree finding methods are applicable to haplotypic data and exhibit reasonable performance with respect to accuracy and robustness. We also discuss some of the problems of converting a tree to a haplotype genealogy, in particular that it is nonunique. © 2011 Blackwell Publishing Ltd.

  13. Genealogía del código pedagógico del entorno

    Directory of Open Access Journals (Sweden)

    Julio MATEOS MONTERO

    2009-11-01

    Full Text Available RESUMEN: El Conocimiento del Medio, área que se incorpora al curriculum de la Enseñanza Primaria en el contexto reformista de la LOGSE (Ley Orgánica de Ordenación del Sistema Educativo, tiene tras de sí una larga y compleja genealogía que transciende con mucho las explicaciones de la historiografía idealista y las justificaciones de carácter técnico o psicopedagógico.En este artículo planteo ciertas perspectivas teóricas que orientan una investigación destinada a desvelar la génesis sociohistórica del código pedagógico del entorno. A modo ilustrativo se expone una muestra de los discursos, las prácticas, las normas y otros ingredientes que intervinieron en el largo proceso de codificación de la didáctica del medio o entorno; ingredientes originalmente inventados y sedimentados en contextos pedagógicos en estrecha relación con los modos de educación. Por otra parte, mi indagación, de la que el lector obtendrá aquí una panorámica significativa, responde a un interés intelectual, compartido y socializado en un colectivo que tiene el ambicioso proyecto de contribuir elocuentemente a desvelar los discursos y las prácticas de los sistemas de enseñanza en la era del capitalismo.ABSTRACT: The knowledge of environment, subject incorporated in the curriculum of Primary School in the reforming context of the LOGSE (Organic Law of General Planning of the Educational System, has behind it a long and complex genealogy which by far goes beyond the explanations of the idealistic historiography and the justifications of technical or psychopedagogical nature. In this article I raise certain theoretical prospectives which orientate an investigation meant to unveil the sociohistorical genesis of the pedagogical code of environment. In an illustrative way an example of the discourses, the practices, norms and other ingredients is displayed/shown, which took part in the long process of codification of the environmental didactics

  14. PROJECTING PRINCIPLES OF «MATHEMATICAL AND PHYSICAL BASICS IN INFORMATICS» MODULE AS PART OF A UNIVERSAL BACCALAUREATE PROGRAM

    Directory of Open Access Journals (Sweden)

    E. K. Samerkhanova

    2016-01-01

    Full Text Available This article is a presentation of “Mathematical and Physical Basics in Informatics” Module projected as part of universal baccalaureate model realized in Minin State Pedagogical University, Nizhny Novgorod, within the educational program for an extended group of qualifications “Informatics and Calculating Machines”. Module authors defined a strategy for baccalaureates preparation in the field of informational technology, which is realized due to a bunch of principles: education fundamentalization, learning systematization, activity, integration and student-centration. The principle of education fundamentalization requires consolidation of scientific and methodological preparation of students. The principle of learning systematization guarantees formation of students’ holistic ideology. The principle of integration is directed onto qualitative interdisciplinary conversion based on mutual enrichment of knowledge and skills. The principle of activity considers student personality, its formation and growth with respect to practical activity as a special form of psychical activity. The principle of student-centration is displayed as social-humanistic purpose of the educational process.

  15. On the Political Genealogy of Trump after Foucault

    Directory of Open Access Journals (Sweden)

    Bruce M. Knauft

    2018-01-01

    Full Text Available How would Foucault have viewed Trump as President, and Trumpism in the US more generally? More realistically, how can we discern and insightfully apply genealogical insights after Foucault to better comprehend and act in relation to our current political situation in the US? Questions of factuality across a base register of asserted falsehoods are now prominent in American politics in ways that put assertions of scholarly objectivity and interpretation in yet deeper question than previously. The extent, range, and vitriol of alt-Right assertions and their viral growth in American media provoke progressivist resistance and anxiety, but how can this opposition be most productively channeled? This paper examines a range of critical perspectives, timeframes, and topical optics with respect to Trump and Trumpism, including nationalist, racist, sexist, class-based, and oligarchical dimensions. These are considered in relation to media and the incitement of polarized subjectivity and dividing practices, and also in relation to Marxist political economy, neoliberalism/neoimperialism, and postcolonialism. I then address the limit points of Foucault, including with respect to engaged political activism and social protest movements, and I consider the relevance of these for the diverse optics that political genealogy as a form of analysis might pursue. Notwithstanding and indeed because of the present impetus to take organized political action, a Foucauldian perspective is useful in foregrounding the broader late modern formations of knowledge, power, and subjectivity within which both Rightist and Leftist political sensibilities in the US are presently cast. At larger issue are the values inscribed through contemporary late modernity that inform both sides of present divisive polarities—and which make the prognosis of tipping points or future political outcomes particularly difficult. As such, productive strategies of activist opposition are likely to

  16. Philological Remarks on Two Genealogies of the Crimean-Tatar Clan Shirin

    Directory of Open Access Journals (Sweden)

    Göncöl Cs.

    2017-12-01

    Full Text Available Objectives: Philological analysis of two genealogies of the Crimean-Tatar clan termed the Shirin, and an identification of a possible common source of these genealogies. Research materials: Two genealogies (family-trees of the most prominent clan of the Crimean Khanate, the Shirin, have survived. The earlier one was preserved in the chronicle of the ʿUmdetü l aḫbār ‘Essence of Histories’ (1748, written by ʿAbdu l Ġaffār Qırımī, a historian of the Crimean Khanate and judge on Shirin estates. The later one was presented by clan-members after 1807 to the Crimean Assembly of Nobility (Таврическое дворянское собрание for the recognition of their noble status and estates. This version was translated into Russian and published by Lashkov. Therefore, the question arises: can the two genealogies have a common source? Results and the novelty of the research: Through a philological comparison of the material, the aim of the author was to demonstrate that the genealogies of the Shirin clan show similarities in content, structure, and text. The author supposes that the texts of ʿAbdu l Ġaffār Qırımī and the genealogy preserved in Russian translation could have been compiled from the same source, perhaps a preliminary Shirin genealogy which, judging from its content, the author dates to the 1660s.

  17. Who Can Know Mathematics?

    Science.gov (United States)

    Walshaw, Margaret

    2014-01-01

    This paper explores contemporary thinking about learning mathematics, and within that, social justice within mathematics education. The discussion first looks at mechanisms offered by conventional explanations on the emancipatory project and then moves towards more recent insights developed within mathematics education. Synergies are drawn between…

  18. Meaningful Statistics in Professional Practices as a Bridge between Mathematics and Science: An Evaluation of a Design Research Project

    Science.gov (United States)

    Dierdorp, Adri; Bakker, Arthur; van Maanen, Jan A.; Eijkelhof, Harrie M. C.

    2014-01-01

    Background: Creating coherence between school subjects mathematics and science and making these school subjects meaningful are still topical challenges. This study investigates how students make meaningful connections between mathematics, statistics, science and applications when they engage in a specially developed unit that is based on…

  19. The Effect of Project-Based Learning on Student Self-Efficacy in a Developmental Mathematics Course

    Science.gov (United States)

    Deutsch, Melissa

    2017-01-01

    Each year, post-secondary institutions across the nation enroll thousands of students into developmental mathematics courses. Success rates are low for students placed in developmental mathematics courses employing traditional teaching practices. Secondary institutions utilizing more engaging pedagogies and high impact practices, such as…

  20. Promotion and diffusion of tha career Bachelor and Licenciature of Mathematics Teaching in rural areas of Costa Rica project: effects and results

    Directory of Open Access Journals (Sweden)

    Jorge Arroyo Hernández

    2016-03-01

    Full Text Available This article describes the purpose and activities of the project Promoting Mathematics Education in Rural Areas of Costa Rica. The activity has focused on two objectives. First, supporting and monitoring students who have expressed interest in studying a mathematics teacher. To achieve this, it has been working with students who have an ideal profile for the career, mainly from rural areas. The second objective is to conduct training workshops for high school in-service teachers, to strengthen and improve their knowledge in the area of mathematics. Among the results of the project, it can be highlighted a significant increase in the enrollment of students in the career of Mathematics Education in 2010 and 2011, and the training processes in the field of Real Functions of Real Variable and Geometry at different regional areas mostly rural as Aguirre, Sarapiquí, Coto, Buenos Aires, Limón, Cañas, Pérez Zeledón, Nicoya, Los Santos, Turrialba, Puriscal, Desamparados, San Carlos, Puntarenas, Limón, Liberia, Santa Cruz y Upala.

  1. Replication of genetic associations as pseudoreplication due to shared genealogy.

    Science.gov (United States)

    Rosenberg, Noah A; Vanliere, Jenna M

    2009-09-01

    The genotypes of individuals in replicate genetic association studies have some level of correlation due to shared descent in the complete pedigree of all living humans. As a result of this genealogical sharing, replicate studies that search for genotype-phenotype associations using linkage disequilibrium between marker loci and disease-susceptibility loci can be considered as "pseudoreplicates" rather than true replicates. We examine the size of the pseudoreplication effect in association studies simulated from evolutionary models of the history of a population, evaluating the excess probability that both of a pair of studies detect a disease association compared to the probability expected under the assumption that the two studies are independent. Each of nine combinations of a demographic model and a penetrance model leads to a detectable pseudoreplication effect, suggesting that the degree of support that can be attributed to a replicated genetic association result is less than that which can be attributed to a replicated result in a context of true independence.

  2. Genealogical analyses in open populations: the case of three Arab-derived Spanish horse breeds.

    Science.gov (United States)

    Cervantes, I; Gutiérrez, J P; Molina, A; Goyache, F; Valera, M

    2009-10-01

    This research assesses the genetic composition of three Arab-derived Spanish horse breeds as an example to highlight the major shortcomings related to genealogical analyses in open populations and to propose approaches useful to deal with this task. The studbooks of three Spanish Arab (SA)-derived horse breeds, Spanish Anglo-Arab (dAA), Hispano-Arab (dHA) and Spanish Sport Horse (dSSH) and those of their parental breeds SA, Spanish Purebred (SPB) and Thoroughbred (TB), totalling 211 754 individuals, were available. The genealogies of the dAA, dHA and dSSH were analysed not only using the corresponding studbook (breed exclusive dataset) but also including the genealogies of the founders from parental breeds (completed dataset). Coancestry analyses revealed that the present SA-derived populations share more genes with the Arab than with the other parental breeds. Effective population size was computed by accounting for migration rates to obtain an equivalent closed-population effective size ((eq)N(e)) of 39.2 for the dAA, 56.3 for dHA and 114.1 for dSSH. The essayed methodologies were useful for characterising populations involving migration. The consequences of the management of the analysed breeds are discussed. The results emphasize the need to include the complete genealogies of the individuals to attain reliable genealogical parameters.

  3. Genealogy and stability of periodic orbit families around uniformly rotating asteroids

    Science.gov (United States)

    Hou, Xiyun; Xin, Xiaosheng; Feng, Jinglang

    2018-03-01

    Resonance orbits around a uniformly rotating asteroid are studied from the approach of periodic orbits in this work. Three periodic families (denoted as I, II, and III in the paper) are fundamental in organizing the resonance families. For the planar case: (1) Genealogy and stability of Families I, II and the prograde resonance families are studied. For extremely irregular asteroids, family genealogy close to the asteroid is greatly distorted from that of the two body-problem (2BP), indicating that it is inappropriate to treat the orbital motions as perturbed Keplerian orbits. (2) Genealogy and stability of Family III are also studied. Stability of this family may be destroyed by the secular resonance between the orbital ascending node's precession and the asteroid's rotation. For the spatial case: (1) Genealogy of the near circular three-dimensional periodic families are studied. The genealogy may be broken apart by families of eccentric frozen orbits whose argument of perigee is ;frozen; in space. (2) The joint effects between the secular resonance and the orbital resonances may cause instability to three-dimensional orbital motion with orbit inclinations close to the critical values. Applying the general methodology to a case study - the asteroid Eros and also considering higher order non-spherical terms, some extraordinary orbits are found, such as the ones with orbital plane co-rotating with the asteroid, and the stable frozen orbits with argument of perigee librating around values different from 0°, 90°, 180°, 270°.

  4. The Y chromosome as the most popular marker in genetic genealogy benefits interdisciplinary research.

    Science.gov (United States)

    Calafell, Francesc; Larmuseau, Maarten H D

    2017-05-01

    The Y chromosome is currently by far the most popular marker in genetic genealogy that combines genetic data and family history. This popularity is based on its haploid character and its close association with the patrilineage and paternal inherited surname. Other markers have not been found (yet) to overrule this status due to the low sensitivity and precision of autosomal DNA for genetic genealogical applications, given the vagaries of recombination, and the lower capacities of mitochondrial DNA combined with an in general much lower interest in maternal lineages. The current knowledge about the Y chromosome and the availability of markers with divergent mutation rates make it possible to answer questions on relatedness levels which differ in time depth; from the individual and familial level to the surnames, clan and population level. The use of the Y chromosome in genetic genealogy has led to applications in several well-established research disciplines; namely in, e.g., family history, demography, anthropology, forensic sciences, population genetics and sex chromosome evolution. The information obtained from analysing this chromosome is not only interesting for academic scientists but also for the huge and lively community of amateur genealogists and citizen-scientists, fascinated in analysing their own genealogy or surname. This popularity, however, has also some drawbacks, mainly for privacy reasons related to the DNA donor, his close family and far-related namesakes. In this review paper we argue why Y-chromosomal analysis and its genetic genealogical applications will still perform an important role in future interdisciplinary research.

  5. Genealogy as a critical toolbox: deconstructing the professional identity of nurses.

    Science.gov (United States)

    Miró-Bonet, Margalida; Bover-Bover, Andreu; Moreno-Mulet, Cristina; Miró-Bonet, Rosa; Zaforteza-Lallemand, Concha

    2014-04-01

    To discuss the Foucauldian concept of genealogy as a framework for understanding and transforming nurses' professional identity. The professional identity of nurses has primarily been defined by personal and interpersonal attributes and by the intradisciplinary dimensions of nursing, leading to its conceptualization as a universal, monolithic phenomenon. The Foucauldian genealogical perspective offers a critical lens to examine what constitutes this professional identity; Spanish nursing offers a historical case study of an active effort to impose an identity that fits the monolithic ideal. Five of the 33 professional conduct manuals for nurses' training published from 1956-1976 during the Franco dictatorship in Spain and six interviews with nursing instructors or students at the time were analysed using a theoretical framework drawn from Foucault's writing. Foucault's genealogical framework considers practices of normalization and resistance as a means of understanding knowledge continuities and discontinuities, clarifying practices that constitute nurses' professional identity in a particular way in specific contexts and analysing the implications of this theoretical frame. The genealogy concept offers valuable tools to determine how professional identities are constituted, questions assumptions about the profession and its professionals and envisions alternative approaches. This theoretical approach helps both scholars and practitioners understand, question and transform their practices as needed. The genealogical approach prioritizes analysis of the phenomenon over its description and challenges many unknown, forgotten, excluded and/or unquestioned aspects of identity from a position of diversity and complexity. © 2013 John Wiley & Sons Ltd.

  6. Bio science: genetic genealogy testing and the pursuit of African ancestry.

    Science.gov (United States)

    Nelson, Alondra

    2008-10-01

    This paper considers the extent to which the geneticization of 'race' and ethnicity is the prevailing outcome of genetic testing for genealogical purposes. The decoding of the human genome precipitated a change of paradigms in genetics research, from an emphasis on genetic similarity to a focus on molecular-level differences among individuals and groups. This shift from lumping to splitting spurred ongoing disagreements among scholars about the significance of 'race' and ethnicity in the genetics era. I characterize these divergent perspectives as 'pragmatism' and 'naturalism'. Drawing upon ethnographic fieldwork and interviews, I argue that neither position fully accounts for how understandings of 'race' and ethnicity are being transformed with genetic genealogy testing. While there is some acquiescence to genetic thinking about ancestry, and by implication, 'race', among African-American and black British consumers of genetic genealogy testing, test-takers also adjudicate between sources of genealogical information and from these construct meaningful biographical narratives. Consumers engage in highly situated 'objective' and 'affiliative' self-fashioning, interpreting genetic test results in the context of their 'genealogical aspirations'. I conclude that issues of site, scale, and subjectification must be attended to if scholars are to understand whether and to what extent social identities are being transformed by recent developments in genetic science.

  7. Genealogies and spiritualities in Genesis 4:17-22, 4:25-26, 5:1-32 ...

    African Journals Online (AJOL)

    The three genealogies in Genesis 4:17-22, 4:25-26 en 5:1-32 show different intentions: the first wants (amongst other purposes) to give an aetiology of the trades; the second wants to stress the importance of a new beginning; the third wants to relate Adam to Noah. Each of these approaches to genealogy has a different ...

  8. The genealogy of personal names: towards a more productive method in historical onomastics.

    Science.gov (United States)

    Kotilainen, Sofia

    2011-01-01

    It is essential to combine genealogical and collective biographical approaches with network analysis if one wants to take full advantage of the evidence provided by (hereditary) personal names in historical and linguistic onomastic research. The naming practices of rural families and clans from the 18th to the 20th century can bring us much fresh information about their enduring attitudes and values, as well as about other mentalities of everyday life. Personal names were cultural symbols that contained socially shared meanings. With the help of genealogical method it is possible to obtain a more nuanced understanding of these past naming practices, for example by comparing the conventions of different communities. A long-term and systematic empirical research also enables us to dispute certain earlier assumptions that have been taken for granted in historical onomastics. Therefore, the genealogical method is crucial in studying the criteria for the choices of personal names in the past.

  9. A genealogical map of the concept of habit.

    Science.gov (United States)

    Barandiaran, Xabier E; Di Paolo, Ezequiel A

    2014-01-01

    The notion of information processing has dominated the study of the mind for over six decades. However, before the advent of cognitivism, one of the most prominent theoretical ideas was that of Habit. This is a concept with a rich and complex history, which is again starting to awaken interest, following recent embodied, enactive critiques of computationalist frameworks. We offer here a very brief history of the concept of habit in the form of a genealogical network-map. This serves to provide an overview of the richness of this notion and as a guide for further re-appraisal. We identify 77 thinkers and their influences, and group them into seven schools of thought. Two major trends can be distinguished. One is the associationist trend, starting with the work of Locke and Hume, developed by Hartley, Bain, and Mill to be later absorbed into behaviorism through pioneering animal psychologists (Morgan and Thorndike). This tradition conceived of habits atomistically and as automatisms (a conception later debunked by cognitivism). Another historical trend we have called organicism inherits the legacy of Aristotle and develops along German idealism, French spiritualism, pragmatism, and phenomenology. It feeds into the work of continental psychologists in the early 20th century, influencing important figures such as Merleau-Ponty, Piaget, and Gibson. But it has not yet been taken up by mainstream cognitive neuroscience and psychology. Habits, in this tradition, are seen as ecological, self-organizing structures that relate to a web of predispositions and plastic dependencies both in the agent and in the environment. In addition, they are not conceptualized in opposition to rational, volitional processes, but as transversing a continuum from reflective to embodied intentionality. These are properties that make habit a particularly attractive idea for embodied, enactive perspectives, which can now re-evaluate it in light of dynamical systems theory and complexity research.

  10. Maternal genealogical patterns of chicken breeds sampled in Europe.

    Science.gov (United States)

    Lyimo, C M; Weigend, A; Msoffe, P L; Hocking, P M; Simianer, H; Weigend, S

    2015-08-01

    The aim of this study was to investigate the maternal genealogical pattern of chicken breeds sampled in Europe. Sequence polymorphisms of 1256 chickens of the hypervariable region (D-loop) of mitochondrial DNA (mtDNA) were used. Median-joining networks were constructed to establish evolutionary relationships among mtDNA haplotypes of chickens, which included a wide range of breeds with different origin and history. Chicken breeds which have had their roots in Europe for more than 3000 years were categorized by their founding regions, encompassing Mediterranean type, East European type and Northwest European type. Breeds which were introduced to Europe from Asia since the mid-19th century were classified as Asian type, and breeds based on crossbreeding between Asian breeds and European breeds were classified as Intermediate type. The last group, Game birds, included fighting birds from Asia. The classification of mtDNA haplotypes was based on Liu et al.'s (2006) nomenclature. Haplogroup E was the predominant clade among the European chicken breeds. The results showed, on average, the highest number of haplotypes, highest haplotype diversity, and highest nucleotide diversity for Asian type breeds, followed by Intermediate type chickens. East European and Northwest European breeds had lower haplotype and nucleotide diversity compared to Mediterranean, Intermediate, Game and Asian type breeds. Results of our study support earlier findings that chicken breeds sampled in Europe have their roots in the Indian subcontinent and East Asia. This is consistent with historical and archaeological evidence of chicken migration routes to Europe. © 2015 Stichting International Foundation for Animal Genetics.

  11. A genealogical map of the concept of habit

    Directory of Open Access Journals (Sweden)

    Xabier E Barandiaran

    2014-07-01

    Full Text Available The notion of information processing has dominated the study of the mind for over six decades. However, before the advent of cognitivism, one of the most prominent theoretical ideas was that of Habit. This is a concept with a rich and complex history, which is again starting to awaken interest, following recent embodied, enactive critiques of computationalist frameworks. We offer here a very brief history of the concept of habit in the form of a genealogical network-map. This serves to provide an overview of the richness of this notion and as a guide for further re-appraisal. We identify 77 thinkers and their influences, and group them into seven schools of thought. Two major trends can be distinguished. One is the associationist trend, starting with the work of Locke and Hume, developed by Hartley, Bain and Mill to be later absorbed into behaviourism through pioneering animal psychologists (Morgan and Thorndike. This tradition conceived of habits atomistically and as automatisms (a conception later debunked by cognitivism. Another historical trend we have called organicism inherits the legacy of Aristotle and develops along German idealism, French spiritualism, pragmatism, and phenomenology. It feeds into the work of continental psychologists in the early 20th century, influencing important figures such as Merleau-Ponty, Piaget, and Gibson. But it has not yet been taken up by mainstream cognitive neuroscience and psychology. Habits, in this tradition, are seen as ecological, self-organizing structures that relate to a web of predispositions and plastic dependencies both in the agent and in the environment. In addition, they are not conceptualized in opposition to rational, volitional processes, but as transversing a continuum from reflective to embodied intentionality. These are properties that make habit a particularly attractive idea for embodied, enactive perspectives, which can now re-evaluate it in light of dynamical systems theory and

  12. The TIMSS Videotape Classroom Study: Methods and Findings from an Exploratory Research Project on Eighth-Grade Mathematics Instruction in Germany, Japan, and the United States. A Research and Development Report.

    Science.gov (United States)

    Stigler, James W.; Gonzales, Patrick; Kwanaka, Takako; Knoll, Steffen; Serrano, Ana

    This report presents the methods and preliminary findings of the Videotape Classroom Study, a video study of eighth-grade mathematics lessons in Germany, Japan, and the United States. This exploratory research project is part of the Third International Mathematics and Science Study (TIMSS). The study included 231 eighth-grade mathematics…

  13. Genealogical information and the structure of rural Latin-American populations: reality and fantasy.

    Science.gov (United States)

    Castilla, E E; Adams, J

    1996-01-01

    Genetic data organized in the form of genealogies can provide much information regarding the history and genetic structure of human populations. A large proportion of the population of Latin America is organized in small rural semi-isolated communities, with little immigration, and until the last 50-100 years, little emigration. These communities have a strong sense of their genealogical history, and this "genealogical conscience' is a frequent leitmotif in modern Latin-American literature. In this communication, we compare the characteristics of fictitious genealogies described in two masterpieces of Latin-American literature, García Márquez' Cien Años de Soledad (A Hundred Years of Solitude), and Verissimo's O Tempo e o Vento (Time and the Wind), with one existing well-studied population in Argentina, Aicuña. All three populations exhibit a number of common characteristics, such as histories of long periods of civil war, and large pedigrees with complex paths of inheritance resulting in complex patterns of inbreeding. Genetic themes common to all three are: (1) the use of genealogical records to substantiate the property of the land or the political power of a kinship; (2) the genealogical registry of biological descendants, independent of their legal or marital status in the clan; (3) the existence of pedigrees of the aristocratic branches in the same kindreds, which illustrate the legal principle of primogeniture; (4) the value of last names as indicators of kinships and the extent of genetic isolation, and (5) the awareness of the deleterious consequences of consanguinity.

  14. The Voces Project: Investigating How Latino/a Immigrant Children Make Sense of Engaging in School and School Mathematics

    Science.gov (United States)

    Knudson-Martin, John C.

    2013-01-01

    This study investigates how a group of Mexican immigrant children in the United States made sense of engaging in school and school mathematics. The research focused on a population of Latino/a middle school students who were a distinct minority, building a model that shows how a complex set of cognitive, sociocultural, and institutional factors…

  15. A Genealogy of the "Future": Antipodean Trajectories and Travels of the "21st Century Learner"

    Science.gov (United States)

    Williams, Carolyn; Gannon, Susanne; Sawyer, Wayne

    2013-01-01

    In this paper, from the particular positioning of educational researchers working in Australia, we unpack the figure of the "21st century learner" from both broad and specific perspectives. The paper begins with a policy genealogy that traces this figure through networks of documents, events and bodies that transcend borders and…

  16. Towards a complete North American Anabaptist Genealogy II: analysis of inbreeding.

    Science.gov (United States)

    Agarwala, R; Schäffer, A A; Tomlin, J F

    2001-08-01

    We describe a large genealogy data base, which can be searched by computer, of 295,095 Amish and Mennonite individuals. The data base was constructed by merging our existing Anabaptist Genealogy Database 2.0 containing approximately 85,000 individuals with a genealogy file containing approximately 242,000 individuals, kindly provided by Mr. James Hostetler. The merging process corrected thousands of inconsistencies and eliminated hundreds of duplicate individuals. Geneticists have long been interested in Anabaptist populations because they are closed and have detailed written genealogies. The creation of an enlarged and unified data base affords the opportunity to examine inbreeding trends and correlates in these populations. We show the following results. The frequency of consanguineous marriages shows steady increase over time and reached approximately 85% for individuals born in 1940-1959. Among consanguineous marriages, the median kinship coefficient stayed stable in the 19th century, but rose from 0.0115 to 0.0151 in the 20th century. There are statistically significant associations (p < 0.0001) between inbreeding and family size and interbirth intervals in the 20th century. There is an association (p < 0.0005) between inbreeding and early death for individuals born in 1920-1959. However, this association reverses dramatically (p < 0.0005 in the opposite direction) for individuals born in 1960-1979. We tested for an association between inbreeding and being the mother of twins, but found none.

  17. Frozen Landscapes: A Foucauldian Genealogy of the Ideal Ballet Dancer's Body

    Science.gov (United States)

    Ritenburg, Heather Margaret

    2010-01-01

    This paper explores the social construction of the "ideal" body of the female ballet dancer in North America. Specifically, the author constructs a Foucauldian genealogy tracing a body shape that came to dominate the principal female dancers of the New York City Ballet, and how this body shape continues to be normalized through…

  18. Establishing and Maintaining a Local History Collection [and] Local History/Genealogical Resources.

    Science.gov (United States)

    North Carolina Libraries, 1988

    1988-01-01

    Theme article on developing local history collections in public libraries begins with a discussion of collection development, and continues with sections on technical services, the library environment, staffing, programing, and marketing. A bibliography and directories of used and rare book dealers, genealogical publishers, professional…

  19. Genealogy, morphology and fitness of spontaneous hybrids between wild and cultivated chicory (Cichorium intybus)

    DEFF Research Database (Denmark)

    Kiær, Lars Pødenphant; Philipp, M.; Bagger Jørgensen, Rikke

    2007-01-01

    Crop species are known to hybridize spontaneously with wild relatives, but few studies have characterized the performance of hybrids at various genealogies, life stages and environments. A group of cultivar-like individuals and potential hybrids were observed in a roadside population of wild chic...

  20. From Policies to Implementation of Open Distance Learning in Rwanda: A Genealogical and Governmentality Analysis

    Science.gov (United States)

    Mukama, Evode

    2018-01-01

    The purpose of this paper is to analyse the interplay between policy formulation and implementation in terms of the historical practices of open distance learning (ODL) in Rwanda. This paper draws on the Foucauldian genealogical and governmentality analysis. The paper examines government aspirations as depicted in policy statements starting from…

  1. The Promise of the New: Genealogies of Youth, Nation and Educational Reform in Australia

    Science.gov (United States)

    McLeod, Julie; Wright, Katie

    2012-01-01

    The promise of the new underpins much educational reform discourse, from utopian strands and grand gestures to more formulaic rhetoric found in declarations of new policies for new times. Informed by genealogical and feminist approaches, this essay introduces some conceptual frameworks for analysing such expressions of hopefulness and newness in…

  2. Description of the supporting factors of final project in Mathematics and Natural Sciences Faculty of Syiah Kuala University with multiple correspondence analysis

    Science.gov (United States)

    Rusyana, Asep; Nurhasanah; Maulizasari

    2018-05-01

    Syiah Kuala University (Unsyiah) is hoped to have graduates who are qualified for working or creating a field of work. A final project course implementation process must be effective. This research uses data from the evaluation conducted by Mathematics and Natural Sciences Faculty (FMIPA) of Unsyiah. Some of the factors that support the completion of the final project are duration, guidance, the final project seminars, facility, public impact, and quality. This research aims to know the factors that have a relationship with the completion of the final project and identify similarities among variables. The factors that support the completion of the final project at every study program in FMIPA are (1) duration, (2) guidance and (3) facilities. These factors are examined for the correlations by chi-square test. After that, the variables are analyzed with multiple correspondence analysis. Based on the plot of correspondence, the activities of the guidance and facilities in Informatics Study Program are included in the fair category, while the guidance and facilities in the Chemistry are included in the best category. Besides that, students in Physics can finish the final project with the fastest completion duration, while students in Pharmacy finish for the longest time.

  3. Impact of medical academic genealogy on publication patterns: An analysis of the literature for surgical resection in brain tumor patients.

    Science.gov (United States)

    Hirshman, Brian R; Tang, Jessica A; Jones, Laurie A; Proudfoot, James A; Carley, Kathleen M; Marshall, Lawrence; Carter, Bob S; Chen, Clark C

    2016-02-01

    "Academic genealogy" refers to the linking of scientists and scholars based on their dissertation supervisors. We propose that this concept can be applied to medical training and that this "medical academic genealogy" may influence the landscape of the peer-reviewed literature. We performed a comprehensive PubMed search to identify US authors who have contributed peer-reviewed articles on a neurosurgery topic that remains controversial: the value of maximal resection for high-grade gliomas (HGGs). Training information for each key author (defined as the first or last author of an article) was collected (eg, author's medical school, residency, and fellowship training). Authors were recursively linked to faculty mentors to form genealogies. Correlations between genealogy and publication result were examined. Our search identified 108 articles with 160 unique key authors. Authors who were members of 2 genealogies (14% of key authors) contributed to 38% of all articles. If an article contained an authorship contribution from the first genealogy, its results were more likely to support maximal resection (log odds ratio = 2.74, p < 0.028) relative to articles without such contribution. In contrast, if an article contained an authorship contribution from the second genealogy, it was less likely to support maximal resection (log odds ratio = -1.74, p < 0.026). We conclude that the literature on surgical resection for HGGs is influenced by medical academic genealogies, and that articles contributed by authors of select genealogies share common results. These findings have important implications for the interpretation of scientific literature, design of medical training, and health care policy. © 2016 American Neurological Association.

  4. Development of Nuclear R and D Man-power Genealogy DB and preparation of Guiding Principle in Assets Application for Nuclear R and D Fund

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Dong Uk; Song, Seung Hyun; Kim, Hak Jun; Chung, Chul Eun

    2007-08-15

    Information search for nuclear professional man-power, technology genealogy search, project participation history etc. is serviced, and present limits to KAERI additionally, but constructed Site-Based DB that service is embodied as well as subject responsible person's pedigree. Information of professional man-power include origin school, last degree, distinction of sex, age etc. and technology genealogy consist of NuTRM classification, national science technology classification, and technology tree system classified in KAERI. Technology possession present condition for professional man-power of only KAERI is included within DB. Hereafter, professional manpower of the other nuclear energy company should be strengthened on the basis of DB structure that is developed. Technology tree system classified in KAERI also required to be strengthened on the man-power DB that has effectiveness for long-term as that embody by technology tree system which can represent nuclear energy through the verification of the other nuclear energy company. By applying readying guiding principle in assets application for nuclear R and D fund, secure lucency of assets application.

  5. Development of Nuclear R and D Man-power Genealogy DB and preparation of Guiding Principle in Assets Application for Nuclear R and D Fund

    International Nuclear Information System (INIS)

    Lee, Dong Uk; Song, Seung Hyun; Kim, Hak Jun; Chung, Chul Eun

    2007-08-01

    Information search for nuclear professional man-power, technology genealogy search, project participation history etc. is serviced, and present limits to KAERI additionally, but constructed Site-Based DB that service is embodied as well as subject responsible person's pedigree. Information of professional man-power include origin school, last degree, distinction of sex, age etc. and technology genealogy consist of NuTRM classification, national science technology classification, and technology tree system classified in KAERI. Technology possession present condition for professional man-power of only KAERI is included within DB. Hereafter, professional manpower of the other nuclear energy company should be strengthened on the basis of DB structure that is developed. Technology tree system classified in KAERI also required to be strengthened on the man-power DB that has effectiveness for long-term as that embody by technology tree system which can represent nuclear energy through the verification of the other nuclear energy company. By applying readying guiding principle in assets application for nuclear R and D fund, secure lucency of assets application

  6. Balancing Considerations of Equity, Content Quality, and Technical Excellence in Designing, Validating and Implementing Performance Assessments in the Context of Mathematics Instructional Reform: The Experience of the QUASAR Project.

    Science.gov (United States)

    Silver, Edward A.; Lane, Suzanne

    Issues of educational equity and quality are explored in the context of the Quantitative Understanding: Amplifying Student Achievement and Reasoning (QUASAR) project, a national educational reform project aimed at fostering and studying the development and implementation of enhanced mathematics instructional programs for students attending middle…

  7. Mathematics through Experience

    Science.gov (United States)

    Hristozova, Nedyalka

    2016-01-01

    The author shares some examples from her Bulgarian project, "Mathematics Through Experience", which approaches mathematics from a practical, real-life perspective in order to develop creative thinking: just like science! What was most important to her was to motivate her students to study maths and science by giving them a taste of how…

  8. The middle-class nature of identity and its implications for education: a genealogical analysis and reevaluation of a culturally and historically bounded concept.

    Science.gov (United States)

    Matusov, Eugene; Smith, Mark Philip

    2012-09-01

    We consider identity as a historically emerging discourse that requires genealogical analysis - not to discover the roots of our identity but to commit [ourselves] to its dissipation (Foucault 1977, p. 162). We suggest analyzing identity through the history of socio-economic classes, their life struggles, ambitions, development, and reproduction. We see learning not as a project of transformation of identity, but rather as developing access to socially valuable practices and developing one's own voice within these practices (through addressing and responding to other voices). The access and voice projects free agents from unnecessary finalization and objectivization by oneself and others (Bakhtin 1999; Bakhtin 1990). In education, we should develop indigenous discourses of learning and develop a conceptual framework that makes analysis of diverse discourses possible. We argue that learning, as transformation of participation in a sociocultural practice to gain more access, is a better conceptual framework than learning as transformation of identity.

  9. On the genealogy of tissue engineering and regenerative medicine.

    Science.gov (United States)

    Kaul, Himanshu; Ventikos, Yiannis

    2015-04-01

    In this article, we identify and discuss a timeline of historical events and scientific breakthroughs that shaped the principles of tissue engineering and regenerative medicine (TERM). We explore the origins of TERM concepts in myths, their application in the ancient era, their resurgence during Enlightenment, and, finally, their systematic codification into an emerging scientific and technological framework in recent past. The development of computational/mathematical approaches in TERM is also briefly discussed.

  10. Mathematics in Action

    DEFF Research Database (Denmark)

    December 2004-November 2007 Denmark, Hungary, Lithuania, the Netherlands, Norway, Slovenia and Spain have cooperated in the project Mathematics in Action (MiA). The MiA project is supported by the Grundtvig action in the Socrates program of the European Commission. The aim of the project...

  11. Mathematics Underground

    Science.gov (United States)

    Luther, Kenneth H.

    2012-01-01

    Mathematical modeling of groundwater flow is a topic at the intersection of mathematics and geohydrology and is rarely encountered in undergraduate mathematics. However, this subject is full of interesting and meaningful examples of truly "applied" mathematics accessible to undergraduates, from the pre-calculus to advanced mathematics levels. This…

  12. Genetic genealogy comes of age: perspectives on the use of deep-rooted pedigrees in human population genetics.

    Science.gov (United States)

    Larmuseau, M H D; Van Geystelen, A; van Oven, M; Decorte, R

    2013-04-01

    In this article, we promote the implementation of extensive genealogical data in population genetic studies. Genealogical records can provide valuable information on the origin of DNA donors in a population genetic study, going beyond the commonly collected data such as residence, birthplace, language, and self-reported ethnicity. Recent studies demonstrated that extended genealogical data added to surname analysis can be crucial to detect signals of (past) population stratification and to interpret the population structure in a more objective manner. Moreover, when in-depth pedigree data are combined with haploid markers, it is even possible to disentangle signals of temporal differentiation within a population genetic structure during the last centuries. Obtaining genealogical data for all DNA donors in a population genetic study is a labor-intensive task but the vastly growing (genetic) genealogical databases, due to the broad interest of the public, are making this job more time-efficient if there is a guarantee for sufficient data quality. At the end, we discuss the advantages and pitfalls of using genealogy within sampling campaigns and we provide guidelines for future population genetic studies. Copyright © 2013 Wiley Periodicals, Inc.

  13. Mathematical Models of Elementary Mathematics Learning and Performance. Final Report.

    Science.gov (United States)

    Suppes, Patrick

    This project was concerned with the development of mathematical models of elementary mathematics learning and performance. Probabilistic finite automata and register machines with a finite number of registers were developed as models and extensively tested with data arising from the elementary-mathematics strand curriculum developed by the…

  14. The Constructed Objectivity of Mathematics and the Cognitive Subject

    Science.gov (United States)

    Longo, Giuseppe

    Mathematics is engendered in conjunction with other forms of knowledge, physics in particular. It is a "genealogy of concepts" (Riemann), that stems from our active reconstruction of the world. Mathematics organizes space and time. It stabilizes notions and concepts as no other language, while isolating by them a few intelligible fragments of "reality" at the phenomenal level. Thus an epistemological analysis of mathematics is proposed, as a foundation that departs from and complements the logico-formal approaches: Mathematics is grounded in a formation of sense, of a congnitive and historical nature, which preceeds the explicit formulation of axioms and rules. The genesis of some conceptual invariants will be sketched (numbers, continua, infinity, proofs, etc.). From these, categories as structural invariants (objects) and "invariant preserving maps" (morphisms, functors) are derived, in a reflective equilibrium of theories that parallels our endeavour to gain knowledge of the physical world.

  15. Mathematical Cultures : the London Meetings 2012-2014

    CERN Document Server

    2016-01-01

    This collection presents significant contributions from an international network project on mathematical cultures, including essays from leading scholars in the history and philosophy of mathematics and mathematics education. Mathematics has universal standards of validity. Nevertheless, there are local styles in mathematical research and teaching, and great variation in the place of mathematics in the larger cultures that mathematical practitioners belong to. The reflections on mathematical cultures collected in this book are of interest to mathematicians, philosophers, historians, sociologists, cognitive scientists and mathematics educators.

  16. Mathematics Connection

    African Journals Online (AJOL)

    MATHEMATICS CONNECTION aims at providing a forum topromote the development of Mathematics Education in Ghana. Articles that seekto enhance the teaching and/or learning of mathematics at all levels of theeducational system are welcome.

  17. The genealogy of sequences containing multiple sites subject to strong selection in a subdivided population.

    Science.gov (United States)

    Nordborg, Magnus; Innan, Hideki

    2003-03-01

    A stochastic model for the genealogy of a sample of recombining sequences containing one or more sites subject to selection in a subdivided population is described. Selection is incorporated by dividing the population into allelic classes and then conditioning on the past sizes of these classes. The past allele frequencies at the selected sites are thus treated as parameters rather than as random variables. The purpose of the model is not to investigate the dynamics of selection, but to investigate effects of linkage to the selected sites on the genealogy of the surrounding chromosomal region. This approach is useful for modeling strong selection, when it is natural to parameterize the past allele frequencies at the selected sites. Several models of strong balancing selection are used as examples, and the effects on the pattern of neutral polymorphism in the chromosomal region are discussed. We focus in particular on the statistical power to detect balancing selection when it is present.

  18. Developing a Mathematical Model for Scheduling and Determining Success Probability of Research Projects Considering Complex-Fuzzy Networks

    Directory of Open Access Journals (Sweden)

    Gholamreza Norouzi

    2015-01-01

    Full Text Available In project management context, time management is one of the most important factors affecting project success. This paper proposes a new method to solve research project scheduling problems (RPSP containing Fuzzy Graphical Evaluation and Review Technique (FGERT networks. Through the deliverables of this method, a proper estimation of project completion time (PCT and success probability can be achieved. So algorithms were developed to cover all features of the problem based on three main parameters “duration, occurrence probability, and success probability.” These developed algorithms were known as PR-FGERT (Parallel and Reversible-Fuzzy GERT networks. The main provided framework includes simplifying the network of project and taking regular steps to determine PCT and success probability. Simplifications include (1 equivalent making of parallel and series branches in fuzzy network considering the concepts of probabilistic nodes, (2 equivalent making of delay or reversible-to-itself branches and impact of changing the parameters of time and probability based on removing related branches, (3 equivalent making of simple and complex loops, and (4 an algorithm that was provided to resolve no-loop fuzzy network, after equivalent making. Finally, the performance of models was compared with existing methods. The results showed proper and real performance of models in comparison with existing methods.

  19. Genetic Structure and Gene Flows within Horses: A Genealogical Study at the French Population Scale

    OpenAIRE

    Pirault, Pauline; Danvy, Sophy; Verrier, Etienne; Leroy, Gr?goire

    2013-01-01

    Since horse breeds constitute populations submitted to variable and multiple outcrossing events, we analyzed the genetic structure and gene flows considering horses raised in France. We used genealogical data, with a reference population of 547,620 horses born in France between 2002 and 2011, grouped according to 55 breed origins. On average, individuals had 6.3 equivalent generations known. Considering different population levels, fixation index decreased from an overall species FIT of 1.37%...

  20. [The importance of genealogy applied to genetic research in Costa Rica].

    Science.gov (United States)

    Meléndez Obando, Mauricio O

    2004-09-01

    The extensive development of genealogical studies based on archival documents has provided powerful support for genetic research in Costa Rica over the past quarter century. As a result, several questions of population history have been answered, such as those involving hereditary illnesses, suggesting additional avenues and questions as well. Similarly, the preservation of massive amounts of historical documentation highlights the major advantages that the Costa Rican population offers to genetic research.

  1. On the genealogy of branching random walks and of directed polymers

    Science.gov (United States)

    Derrida, Bernard; Mottishaw, Peter

    2016-08-01

    It is well known that the mean-field theory of directed polymers in a random medium exhibits replica symmetry breaking with a distribution of overlaps which consists of two delta functions. Here we show that the leading finite-size correction to this distribution of overlaps has a universal character which can be computed explicitly. Our results can also be interpreted as genealogical properties of branching Brownian motion or of branching random walks.

  2. Genealogical databases as a tool for extending follow-up in clinical reviews.

    Science.gov (United States)

    Ho, Thuy-Van; Chowdhury, Naweed; Kandl, Christopher; Hoover, Cindy; Robinson, Ann; Hoover, Larry

    2016-08-01

    Long-term follow-up in clinical reviews often presents significant difficulty with conventional medical records alone. Publicly accessible genealogical databases such as Ancestry.com provide another avenue for obtaining extended follow-up and added outcome information. No previous studies have described the use of genealogical databases in the follow-up of individual patients. Ancestry.com, the largest genealogical database in the United States, houses extensive demographic data on an increasing number of Americans. In a recent retrospective review of esthesioneuroblastoma patients treated at our institution, we used this resource to ascertain the outcomes of patients otherwise lost to follow-up. Additional information such as quality of life and supplemental treatments the patient may have received at home was obtained through direct contact with living relatives. The use of Ancestry.com resulted in a 25% increase (20 months) in follow-up duration as well as incorporation of an additional 7 patients in our study (18%) who would otherwise not have had adequate hospital chart data for inclusion. Many patients within this subset had more advanced disease or were remotely located from our institution. As such, exclusion of these outliers can impact the quality of subsequent outcome analysis. Online genealogical databases provide a unique resource of public information that is acceptable to institutional review boards for patient follow-up in clinical reviews. Utilization of Ancestry.com data led to significant improvement in follow-up duration and increased the number of patients with sufficient data that could be included in our retrospective study. © 2016 ARS-AAOA, LLC.

  3. Gaussian process-based Bayesian nonparametric inference of population size trajectories from gene genealogies.

    Science.gov (United States)

    Palacios, Julia A; Minin, Vladimir N

    2013-03-01

    Changes in population size influence genetic diversity of the population and, as a result, leave a signature of these changes in individual genomes in the population. We are interested in the inverse problem of reconstructing past population dynamics from genomic data. We start with a standard framework based on the coalescent, a stochastic process that generates genealogies connecting randomly sampled individuals from the population of interest. These genealogies serve as a glue between the population demographic history and genomic sequences. It turns out that only the times of genealogical lineage coalescences contain information about population size dynamics. Viewing these coalescent times as a point process, estimating population size trajectories is equivalent to estimating a conditional intensity of this point process. Therefore, our inverse problem is similar to estimating an inhomogeneous Poisson process intensity function. We demonstrate how recent advances in Gaussian process-based nonparametric inference for Poisson processes can be extended to Bayesian nonparametric estimation of population size dynamics under the coalescent. We compare our Gaussian process (GP) approach to one of the state-of-the-art Gaussian Markov random field (GMRF) methods for estimating population trajectories. Using simulated data, we demonstrate that our method has better accuracy and precision. Next, we analyze two genealogies reconstructed from real sequences of hepatitis C and human Influenza A viruses. In both cases, we recover more believed aspects of the viral demographic histories than the GMRF approach. We also find that our GP method produces more reasonable uncertainty estimates than the GMRF method. Copyright © 2013, The International Biometric Society.

  4. Heroes and Cowards: Genealogy, Subjectivity and War in the Twenty-First Century

    Directory of Open Access Journals (Sweden)

    Peter Lee

    2018-04-01

    Full Text Available From the wars of Ancient Greece to the collapsing Islamic State in the present, the same, apparently timeless protagonists appear and their stories told and re-told: the heroes, cowards and other combatants. This article proposes a framework which combines a Foucauldian genealogical approach with his conception of the subject as both constituted in relation to code-oriented moralities, and creatively self-formed in relation to ethics-oriented moralities (Foucault 1992, pp. 5, 25, to understand how it is possible to speak meaningfully of heroes and cowards in the age of the drone and the jihadist. Section one will explore the applicability of Foucauldian genealogy as the methodological basis for understanding present combatants in the context of war. The second section will assess Foucault’s ‘modes of subjectivation’ and ‘practices of the self’ (Foucault 1992, p. 28, as a means of analyzing the emergence of the subject of war over millennia, with emphasis on the ethical dimension of subjectivity that can be applied to heroes and cowards. Then the third section will use insights from Homer and Augustine to begin to illustrate how Foucault’s genealogical approach and his conception of ethical subjectivity combine to enable heroes and cowards to be meaningfully spoken of and better understood in the domain of war today. The purpose of such a study is to set out the basis on which political genealogy after Foucault can provide a nuanced conceptualization of subjectivity in modern war, as those subjects are formed, claimed, valorized and criticized by competing entities in contemporary political discourse.

  5. Does having children extend life span? A genealogical study of parity and longevity in the Amish.

    Science.gov (United States)

    McArdle, Patrick F; Pollin, Toni I; O'Connell, Jeffrey R; Sorkin, John D; Agarwala, Richa; Schäffer, Alejandro A; Streeten, Elizabeth A; King, Terri M; Shuldiner, Alan R; Mitchell, Braxton D

    2006-02-01

    The relationship between parity and life span is uncertain, with evidence of both positive and negative relationships being reported previously. We evaluated this issue by using genealogical data from an Old Order Amish community in Lancaster, Pennsylvania, a population characterized by large nuclear families, homogeneous lifestyle, and extensive genealogical records. The analysis was restricted to the set of 2,015 individuals who had children, were born between 1749 and 1912, and survived until at least age 50 years. Pedigree structures and birth and death dates were extracted from Amish genealogies, and the relationship between parity and longevity was examined using a variance component framework. Life span of fathers increased in linear fashion with increasing number of children (0.23 years per additional child; p =.01), while life span of mothers increased linearly up to 14 children (0.32 years per additional child; p =.004) but decreased with each additional child beyond 14 (p =.0004). Among women, but not men, a later age at last birth was associated with longer life span (p =.001). Adjusting for age at last birth obliterated the correlation between maternal life span and number of children, except among mothers with ultrahigh (>14 children) parity. We conclude that high parity among men and later menopause among women may be markers for increased life span. Understanding the biological and/or social factors mediating these relationships may provide insights into mechanisms underlying successful aging.

  6. On the Genealogy of Kitsch and the Critique of Ideology: A Reflection on Method

    Directory of Open Access Journals (Sweden)

    Andrius Bielskis

    2018-02-01

    Full Text Available This paper examines similarities and differences between the genealogical approach to social critique and the Marxist critique of ideology. Given the key methodological aspects of Michel Foucault’s genealogy—the fusion of power and discourse and the Nietzschean notion of the aesthetization of life—the paper argues that Hollywood kitsch maybe interpreted as a new dispositif. A key task of the genealogy of kitsch is to analyze the effects of fake Hollywood narratives: how they form and normalize us, what kind of subjectivities they produce, and what type of social relations they create. La La Land, a 2016 American musical, is discussed as a way of illustration. Theorists of the Frankfurt School also advanced their critiques of the popular culture and its forms of kitsch; yet they followed Marx and his conception of ideology. The paper concludes that the differences between genealogy and the critique of ideology are philosophical. Foucault rejected the Marxist conception of history and the notion of ideology as false consciousness. Kitsch, for a genealogist, is formative rather than repressive; it makes people pursue banal dreams. For a Marxist critic, popular culture as a form of ideology dulls our critical capacities and, therefore, leaves the status quo of alienation intact.

  7. The Chernobyl reactor accident, ten years on. Teaching projects for mathematics instruction in interdisciplinary working groups; 10 Jahre nach Tschernobyl. Unterrichtsprojekte fuer den Mathematikunterricht in faecheruebergreifenden Kooperationen

    Energy Technology Data Exchange (ETDEWEB)

    Boer, H. [comp.; Delle, E. [comp.; Mies, K. [comp.; Warmeling, A. [comp.

    1996-10-01

    The booklet presents background information and addresses the following aspects: ionizing radiation and radiation effects; safety of German nuclear power plants; statistical evidence of radiation injuries; short-lived and long-lived ionizing radiation; radioactive waste; CO{sub 2} emissions as an argument in favour of nuclear power generation. The material presented is intended for use by a school project team interested in the subjects, or as a basis for collaborative, interdisciplinary teaching in working groups, and it offers information and problems for mathematics teaching. (HP) [Deutsch] Neben vielen Informationen behandelt die Broschuere: Strahlen und Strahlenwirkungen; Sicherheit deutscher Kernkraftwerke; statistischer Nachweis von Strahlenschaeden; Kurz- und Langfestigkeit der Strahlenbelastung; radioaktiver Abfall; CO{sub 2}-Problematik als Argument fuer die Kernenergie. Die Broschuere ist gedacht z.B. fuer eine Projektgruppe, einen Projekttag, fuer eine Lerngruppe in faecheruebergreifender Kooperation. Die Materialien sind ausgearbeitet fuer die Themembearbeitung im Mathematikunterricht mit Uebungsaufgaben. (HP)

  8. Projection multiplex recording of computer-synthesised one-dimensional Fourier holograms for holographic memory systems: mathematical and experimental modelling

    Energy Technology Data Exchange (ETDEWEB)

    Betin, A Yu; Bobrinev, V I; Verenikina, N M; Donchenko, S S; Odinokov, S B [Research Institute ' Radiotronics and Laser Engineering' , Bauman Moscow State Technical University, Moscow (Russian Federation); Evtikhiev, N N; Zlokazov, E Yu; Starikov, S N; Starikov, R S [National Reseach Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow (Russian Federation)

    2015-08-31

    A multiplex method of recording computer-synthesised one-dimensional Fourier holograms intended for holographic memory devices is proposed. The method potentially allows increasing the recording density in the previously proposed holographic memory system based on the computer synthesis and projection recording of data page holograms. (holographic memory)

  9. Mathematical Footprints Discovering Mathematics Everywhere

    CERN Document Server

    Pappas, Theoni

    1999-01-01

    MATHEMATICAL FOOTPRINTS takes a creative look at the role mathematics has played since prehistoric times, and will play in the future, and uncovers mathematics where you least expect to find it from its many uses in medicine, the sciences, and its appearance in art to its patterns in nature and its central role in the development of computers. Pappas presents mathematical ideas in a readable non-threatening manner. MATHEMATICAL FOOTPRINTS is another gem by the creator of THE MATHEMATICS CALENDAR and author of THE JOY OF MATHEMATICS. "Pappas's books have been gold mines of mathematical ent

  10. DECOVALEX III PROJECT. Mathematical Models of Coupled Thermal-Hydro-Mechanical Processes for Nuclear Waste Repositories. Executive Summary

    Energy Technology Data Exchange (ETDEWEB)

    Jing, L.; Stephansson, O. [Royal Inst. of Technology, Stockholm (Sweden). Engineering Geology; Tsang, C.F. [Lawrence Berkely National Laboratory, Berkeley, CA (United States). Earth Science Div.; Mayor, J.C. [ENRESA, Madrid (Spain); Kautzky, F. [Swedish Nuclear Power Inspectorate, Stockholm (Sweden)] (eds.)

    2005-02-15

    DECOVALEX is an international consortium of governmental agencies associated with the disposal of high-level nuclear waste in a number of countries. The consortium's mission is the DEvelopment of COupled models and their VALidation against EXperiments. Hence the acronym/name DECOVALEX. Currently, agencies from Canada, Finland, France, Germany, Japan, Spain, Switzerland, Sweden, United Kingdom, and the United States are in DECOVALEX. Emplacement of nuclear waste in a repository in geologic media causes a number of physical processes to be intensified in the surrounding rock mass due to the decay heat from the waste. The four main processes of concern are thermal, hydrological, mechanical and chemical. Interactions or coupling between these heat-driven processes must be taken into account in modeling the performance of the repository for such modeling to be meaningful and reliable. DECOVALEX III is organized around four tasks. The FEBEX (Full-scale Engineered Barriers EXperiment) in situ experiment being conducted at the Grimsel site in Switzerland is to be simulated and analyzed in Task 1. Task 2, centered around the Drift Scale Test (DST) at Yucca Mountain in Nevada, USA, has several sub-tasks (Task 2A, Task 2B, Task 2C and Task 2D) to investigate a number of the coupled processes in the DST. Task 3 studies three benchmark problems: a) the effects of thermal-hydrologic-mechanical (THM) coupling on the performance of the near-field of a nuclear waste repository (BMT1); b) the effect of upscaling THM processes on the results of performance assessment (BMT2); and c) the effect of glaciation on rock mass behavior (BMT3). Task 4 is on the direct application of THM coupled process modeling in the performance assessment of nuclear waste repositories in geologic media. This executive summary presents the motivation, structure, objectives, approaches, and the highlights of the main achievements and outstanding issues of the tasks studied in the DECOVALEX III project

  11. DECOVALEX III PROJECT. Mathematical Models of Coupled Thermal-Hydro-Mechanical Processes for Nuclear Waste Repositories. Executive Summary

    International Nuclear Information System (INIS)

    Jing, L.; Stephansson, O.; Kautzky, F.

    2005-02-01

    DECOVALEX is an international consortium of governmental agencies associated with the disposal of high-level nuclear waste in a number of countries. The consortium's mission is the DEvelopment of COupled models and their VALidation against EXperiments. Hence the acronym/name DECOVALEX. Currently, agencies from Canada, Finland, France, Germany, Japan, Spain, Switzerland, Sweden, United Kingdom, and the United States are in DECOVALEX. Emplacement of nuclear waste in a repository in geologic media causes a number of physical processes to be intensified in the surrounding rock mass due to the decay heat from the waste. The four main processes of concern are thermal, hydrological, mechanical and chemical. Interactions or coupling between these heat-driven processes must be taken into account in modeling the performance of the repository for such modeling to be meaningful and reliable. DECOVALEX III is organized around four tasks. The FEBEX (Full-scale Engineered Barriers EXperiment) in situ experiment being conducted at the Grimsel site in Switzerland is to be simulated and analyzed in Task 1. Task 2, centered around the Drift Scale Test (DST) at Yucca Mountain in Nevada, USA, has several sub-tasks (Task 2A, Task 2B, Task 2C and Task 2D) to investigate a number of the coupled processes in the DST. Task 3 studies three benchmark problems: a) the effects of thermal-hydrologic-mechanical (THM) coupling on the performance of the near-field of a nuclear waste repository (BMT1); b) the effect of upscaling THM processes on the results of performance assessment (BMT2); and c) the effect of glaciation on rock mass behavior (BMT3). Task 4 is on the direct application of THM coupled process modeling in the performance assessment of nuclear waste repositories in geologic media. This executive summary presents the motivation, structure, objectives, approaches, and the highlights of the main achievements and outstanding issues of the tasks studied in the DECOVALEX III project. The

  12. Comparing models on the genealogical relationships among Neandertal, Cro-Magnoid and modern Europeans by serial coalescent simulations.

    Science.gov (United States)

    Belle, E M S; Benazzo, A; Ghirotto, S; Colonna, V; Barbujani, G

    2009-03-01

    Populations of anatomically archaic (Neandertal) and early modern (Cro-Magnoid) humans are jointly documented in the European fossil record, in the period between 40 000 and 25 000 years BP, but the large differences between their cultures, morphologies and DNAs suggest that the two groups were not close relatives. However, it is still unclear whether any genealogical continuity between them can be ruled out. Here, we simulated a broad range of demographic scenarios by means of a serial coalescence algorithm in which Neandertals, Cro-Magnoids and modern Europeans were either part of the same mitochondrial genealogy or of two separate genealogies. Mutation rates, population sizes, population structure and demographic growth rates varied across simulations. All models in which anatomically modern (that is, Cro-Magnoid and current) Europeans belong to a distinct genealogy performed better than any model in which the three groups were assigned to the same mitochondrial genealogy. The maximum admissible level of gene flow between Neandertals and the ancestors of current Europeans is 0.001% per generation, one order of magnitude lower than estimated in previous studies not considering genetic data on Cro-Magnoid people.

  13. Temporal differentiation across a West-European Y-chromosomal cline: genealogy as a tool in human population genetics.

    Science.gov (United States)

    Larmuseau, Maarten H D; Ottoni, Claudio; Raeymaekers, Joost A M; Vanderheyden, Nancy; Larmuseau, Hendrik F M; Decorte, Ronny

    2012-04-01

    The pattern of population genetic variation and allele frequencies within a species are unstable and are changing over time according to different evolutionary factors. For humans, it is possible to combine detailed patrilineal genealogical records with deep Y-chromosome (Y-chr) genotyping to disentangle signals of historical population genetic structures because of the exponential increase in genetic genealogical data. To test this approach, we studied the temporal pattern of the 'autochthonous' micro-geographical genetic structure in the region of Brabant in Belgium and the Netherlands (Northwest Europe). Genealogical data of 881 individuals from Northwest Europe were collected, from which 634 family trees showed a residence within Brabant for at least one generation. The Y-chr genetic variation of the 634 participants was investigated using 110 Y-SNPs and 38 Y-STRs and linked to particular locations within Brabant on specific time periods based on genealogical records. Significant temporal variation in the Y-chr distribution was detected through a north-south gradient in the frequencies distribution of sub-haplogroup R1b1b2a1 (R-U106), next to an opposite trend for R1b1b2a2g (R-U152). The gradient on R-U106 faded in time and even became totally invisible during the Industrial Revolution in the first half of the nineteenth century. Therefore, genealogical data for at least 200 years are required to study small-scale 'autochthonous' population structure in Western Europe.

  14. Mathematical bridges

    CERN Document Server

    Andreescu, Titu; Tetiva, Marian

    2017-01-01

    Building bridges between classical results and contemporary nonstandard problems, Mathematical Bridges embraces important topics in analysis and algebra from a problem-solving perspective. Blending old and new techniques, tactics and strategies used in solving challenging mathematical problems, readers will discover numerous genuine mathematical gems throughout that will heighten their appreciation of the inherent beauty of mathematics. Most of the problems are original to the authors and are intertwined in a well-motivated exposition driven by representative examples. The book is structured to assist the reader in formulating and proving conjectures, as well as devising solutions to important mathematical problems by making connections between various concepts and ideas from different areas of mathematics. Instructors and educators teaching problem-solving courses or organizing mathematics clubs, as well as motivated mathematics students from high school juniors to college seniors, will find Mathematical Bri...

  15. Mathematics Teachers' Views about Teaching as a Profession: Final Results of a Four-Year Longitudinal Study. A Report from the Urban Mathematics Collaborative Documentation Project. Program Report 91-4.

    Science.gov (United States)

    Middleton, James A.; And Others

    This paper reports the results of a 4-year longitudinal study of approximately 600 urban mathematics teachers who were surveyed to ascertain their attitudes regarding certain attributes of the profession of mathematics teaching, specifically: the use of the professional organization as a major referent, the belief in service to the public, the…

  16. Advanced engineering mathematics

    CERN Document Server

    Jeffrey, Alan

    2001-01-01

    Advanced Engineering Mathematics provides comprehensive and contemporary coverage of key mathematical ideas, techniques, and their widespread applications, for students majoring in engineering, computer science, mathematics and physics. Using a wide range of examples throughout the book, Jeffrey illustrates how to construct simple mathematical models, how to apply mathematical reasoning to select a particular solution from a range of possible alternatives, and how to determine which solution has physical significance. Jeffrey includes material that is not found in works of a similar nature, such as the use of the matrix exponential when solving systems of ordinary differential equations. The text provides many detailed, worked examples following the introduction of each new idea, and large problem sets provide both routine practice, and, in many cases, greater challenge and insight for students. Most chapters end with a set of computer projects that require the use of any CAS (such as Maple or Mathematica) th...

  17. Genealogy profiling through strain improvement by using metabolic network analysis: metabolic flux genealogy of several generations of lysine-producing corynebacteria.

    Science.gov (United States)

    Wittmann, Christoph; Heinzle, Elmar

    2002-12-01

    A comprehensive approach of metabolite balancing, (13)C tracer studies, gas chromatography-mass spectrometry, matrix-assisted laser desorption ionization-time of flight mass spectrometry, and isotopomer modeling was applied for comparative metabolic network analysis of a genealogy of five successive generations of lysine-producing Corynebacterium glutamicum. The five strains examined (C. glutamicum ATCC 13032, 13287, 21253, 21526, and 21543) were previously obtained by random mutagenesis and selection. Throughout the genealogy, the lysine yield in batch cultures increased markedly from 1.2 to 24.9% relative to the glucose uptake flux. Strain optimization was accompanied by significant changes in intracellular flux distributions. The relative pentose phosphate pathway (PPP) flux successively increased, clearly corresponding to the product yield. Moreover, the anaplerotic net flux increased almost twofold as a consequence of concerted regulation of C(3) carboxylation and C(4) decarboxylation fluxes to cover the increased demand for lysine formation; thus, the overall increase was a consequence of concerted regulation of C(3) carboxylation and C(4) decarboxylation fluxes. The relative flux through isocitrate dehydrogenase dropped from 82.7% in the wild type to 59.9% in the lysine-producing mutants. In contrast to the NADPH demand, which increased from 109 to 172% due to the increasing lysine yield, the overall NADPH supply remained constant between 185 and 196%, resulting in a decrease in the apparent NADPH excess through strain optimization. Extrapolated to industrial lysine producers, the NADPH supply might become a limiting factor. The relative contributions of PPP and the tricarboxylic acid cycle to NADPH generation changed markedly, indicating that C. glutamicum is able to maintain a constant supply of NADPH under completely different flux conditions. Statistical analysis by a Monte Carlo approach revealed high precision for the estimated fluxes, underlining the

  18. Mathematics and Measurement.

    Science.gov (United States)

    Boisvert, R F; Donahue, M J; Lozier, D W; McMichael, R; Rust, B W

    2001-01-01

    In this paper we describe the role that mathematics plays in measurement science at NIST. We first survey the history behind NIST's current work in this area, starting with the NBS Math Tables project of the 1930s. We then provide examples of more recent efforts in the application of mathematics to measurement science, including the solution of ill-posed inverse problems, characterization of the accuracy of software for micromagnetic modeling, and in the development and dissemination of mathematical reference data. Finally, we comment on emerging issues in measurement science to which mathematicians will devote their energies in coming years.

  19. Summer Camp of Mathematical Modeling in China

    Science.gov (United States)

    Tian, Xiaoxi; Xie, Jinxing

    2013-01-01

    The Summer Camp of Mathematical Modeling in China is a recently created experience designed to further Chinese students' academic pursuits in mathematical modeling. Students are given more than three months to research on a mathematical modeling project. Researchers and teams with outstanding projects are invited to the Summer Camp to present…

  20. Worldwide genealogy of Entamoeba histolytica: an overview to understand haplotype distribution and infection outcome.

    Science.gov (United States)

    Zermeño, Valeria; Ximénez, Cecilia; Morán, Patricia; Valadez, Alicia; Valenzuela, Olivia; Rascón, Edgar; Diaz, Daniel; Cerritos, René

    2013-07-01

    Although Entamoeba histolytica is one of the most prevalent intestinal parasites, how the different strains of this species are distributed all over the world and how different genotypes are associated with the infection outcome are yet to be fully understood. Recently, the use of a number of molecular markers has made the characterization of several genotypes in those regions with high incidence of amoebiasis possible. This work proposes the first genealogy of E. histolytica, with an haplotype network based on two tRNA gene-linked array of Short Tandem Repeats (STRs) reported until today, and 47 sequences from 39 new isolates of Mexican Amoebic Liver Abscesses (ALA) samples. One hundred and three sequences were obtained from D-A locus, their information about the geographic region of isolation as well as clinical diagnosis were also collected. One hundred and five sequences from N-K2 locus were also obtained as well as the region of isolation, but the information about clinical diagnosis was not available in all cases. The most abundant and widely distributed haplotype in the world is the one of E. histolytica HM1:IMSS strain. This was found in Mexico, Bangladesh, Japan, China and USA and is associated to symptomatic patients as well as asymptomatic cyst passers. Many other haplotypes were found only in a single country. Both genealogies suggest that there are no lineages within the networks that may be related to a particular geographic region or infection outcome. A concatenated analysis of the two molecular markers revealed 12 different combinations, which suggests the possibility of genetic recombination events. The present study is the first to propose a global genealogy of this species and suggests that there are still many genotypes to be discovered. The genotyping of new isolates will help to understand the great diversity and genetic structure of this parasite. Copyright © 2013 Elsevier B.V. All rights reserved.

  1. STUDI AWAL TENTANG POLEMIK PERAN WANITA PADA DESAIN RUMAH TINGGAL; DENGAN PENDEKATAN GENEALOGI

    Directory of Open Access Journals (Sweden)

    J. Lukito Kartono

    2000-01-01

    Full Text Available Realizing that all of their activities cannot be carried out indoors,people consider that dwelling is a must or tradition for them.The dwelling-house is represented in the forms of space visualizing the dwellers' culture.The indoor spaces reflect the social-structure closely related to the role of the members of the family and to their relation with their relatives.Initially,the space arrangement of traditional society clearly showed the role of man and women but then feminism claimed that women's roles has been discriminating and marginal.We need to prove this point of view in details by always observing the cases of house-designs in genealogical way. Abstract in Bahasa Indonesia : Tradisi berhuni merupakan tradisi yang dilakukan oleh manusia karena sadar bahwa tidak semua kegiatannya dapat dilakukan diudara terbuka.Tempat berhuni yang direpresentasikan dalam wujud ruang mencerminkan kebudayaan yang dianut penghuninya. Ruang-ruang di rumah tinggal menampung struktur sosial yang berkaitan dengan peran suami dan saudaranya,istri dan saudaranya serta anak-anak mereka. Pada awalnya,dalam penataan ruang rumah tinggal masyarakat tradisional terlihat secara jelas adanya ruang-ruang yang mengakomodir kegiatan wanita dan lelaki.Tetapi akhir-akhir ini sejalan dengan lahirnya gerakan feminisme,ada gugatan bahwa telah terjadi diskriminasi dan marjinalisasi terhadap peran wanita dalam rumah tinggal.Kebenaran gugatan memang perlu dibahas lebih mendalam dengan meninjau secara genealogi pada kasus-kasus desain rumah tinggal dari masa ke masa. Kata kunci: lelaki-wanita,rumah tinggal dan genealogi.

  2. Genealogías y molecular de los descendientes del Marquéz de Yavi

    Directory of Open Access Journals (Sweden)

    Alfaro Gómez, Emma Laura

    2007-01-01

    Full Text Available El título nobiliario de Marqués del Valle del Toxo, conocido comúnmente como Marqués de Yavi, era el más importante en el territorio del virreinato del Río de la Plata y se extendía por toda la Puna argentina y diversos municipios de Bolivia. Hubo cuatro marqueses desde su creación en 1708 por la Real Cédula emitida por Felipe V, rey de España, hasta su disolución en 1820 luego del fallecimiento del cuarto marqués Juan José Feliciano Fernández Campero. La abundancia de referencias históricas sobre el Marquesado de Yavi, el reciente interés político por recuperar la figura histórica del último Marqués sumado al encuentro social de sus descendientes ofreció la extraordinaria posibilidad de realizar una reconstrucción detallada de la genealogía de la familia Campero y relacionarla con el estudio molecular de sus descendientes. Se analizaron muestras de 30 individuos Campero a través de 6 microsatélites del cromosoma Y (DYS:19, 389a y b, 390,392,393 Se encontraron 8 linajes paternos bien definidos, 16 muestras comparten un linaje único, el segundo linaje congrega a 5 individuos, el tercero y cuarto linaje cuentan con 2 individuos cada uno y en 5 muestras se encontraron linajes individuales no relacionados con los anteriores. De estos resultados se interpreta que en la Genealogía Campero coexisten linajes diferentes, de los cuales uno de ellos, el mayoritario, probablemente sea el linaje fundador de esta genealogía. Se discuten estos resultados a la luz de la información genealógica e histórica.

  3. Mathematics disorder

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/001534.htm Mathematics disorder To use the sharing features on this page, please enable JavaScript. Mathematics disorder is a condition in which a child's ...

  4. Mathematical Chemistry

    OpenAIRE

    Trinajstić, Nenad; Gutman, Ivan

    2002-01-01

    A brief description is given of the historical development of mathematics and chemistry. A path leading to the meeting of these two sciences is described. An attempt is made to define mathematical chemistry, and journals containing the term mathematical chemistry in their titles are noted. In conclusion, the statement is made that although chemistry is an experimental science aimed at preparing new compounds and materials, mathematics is very useful in chemistry, among other things, to produc...

  5. Genealogy and the Consecration of the Biopolitics Term. Interchanges Between Esposito, Arendt and Foucault

    Directory of Open Access Journals (Sweden)

    Lara Emanuele da Luz

    2017-11-01

    Full Text Available The present article intends, on the one hand, to study the genealogy of the term biopolitics, passing through the term bíos. To support this reflection, the first part of the book by Roberto Esposito, Bíos, will be used. The term biopolitics undergoes a mutation since its first use in 1905. On the other hand, based on the data presented in the first part of the chapter, an analysis of the consecration of the term made by Michel Foucault will be made. In the course of the article, besides Foucault and Esposito, a connection will be made to the Arendtian work

  6. What's in a name? Y chromosomes, surnames and the genetic genealogy revolution.

    Science.gov (United States)

    King, Turi E; Jobling, Mark A

    2009-08-01

    Heritable surnames are highly diverse cultural markers of coancestry in human populations. A patrilineal surname is inherited in the same way as the non-recombining region of the Y chromosome and there should, therefore, be a correlation between the two. Studies of Y haplotypes within surnames, mostly of the British Isles, reveal high levels of coancestry among surname cohorts and the influence of confounding factors, including multiple founders for names, non-paternities and genetic drift. Combining molecular genetics and surname analysis illuminates population structure and history, has potential applications in forensic studies and, in the form of 'genetic genealogy', is an area of rapidly growing interest for the public.

  7. Rare event computation in deterministic chaotic systems using genealogical particle analysis

    International Nuclear Information System (INIS)

    Wouters, J; Bouchet, F

    2016-01-01

    In this paper we address the use of rare event computation techniques to estimate small over-threshold probabilities of observables in deterministic dynamical systems. We demonstrate that genealogical particle analysis algorithms can be successfully applied to a toy model of atmospheric dynamics, the Lorenz ’96 model. We furthermore use the Ornstein–Uhlenbeck system to illustrate a number of implementation issues. We also show how a time-dependent objective function based on the fluctuation path to a high threshold can greatly improve the performance of the estimator compared to a fixed-in-time objective function. (paper)

  8. A doctoral study of the use of the Internet for genealogy

    Directory of Open Access Journals (Sweden)

    Kylie J. Veale

    2009-11-01

    Full Text Available Distintas  investigaciones muestran evidencia de que Internet ha tenido un impacto revolucionario en nuestra sociedad y en nuestra forma de vida cotidiana. Obviamente, ya que Internet influye en los diversos aspectos de la vida cotidiana, los intereses de aficionados en áreas tales como la historia también se han mejorado y han cambiado considerando Internet como una tecnología social. Una afición, la genealogía, se ha elevado por encima de todo para ser uno de los más populares en línea, proporcionando una oportunidad para entender el uso de Internet dentro de un contexto más amplio. Como resultado de ello, el autor ha iniciado un programa de investigación de doctorado con la Universidad Tecnológica de Curtin, Australia, para examinar cómo los genealogistas utilizan Internet, y para investigar las consecuencias del desarrollo de la genealogía como una importante actividad basada en Internet. El propuesto de este artículo, por lo tanto, es presentar las notas de investigación del estudio.____________ABSTRACT:Research evidence shows the Internet has had a revolutionary impact on our society and the way we live everyday. Consequently, as the Internet influences the many aspects of everyday lives, hobbyist interests in areas such as history have also been enhanced and changed by the Internet as a social technology. One hobby, genealogy, has risen above all to be one of the most popular online, providing an opportunity to understand the use of the Internet within a broader context. As a result, the author has commenced a PhD research program with Curtin University of Technology, Australia, to examine how genealogists use the Internet, and to investigate the consequences of the development of genealogy as a significant Internet-based activity. The purposed of this article, therefore, is to present the research notes of the study.

  9. Genetic variability within french race and riding horse breeds from genealogical data and blood marker polymorphisms

    OpenAIRE

    Moureaux, Sophie; Verrier, Etienne; Ricard, Anne; Meriaux, J-Claude

    1996-01-01

    The genetic variability of five horse breeds raised in France was analysed: Thoroughbred, Trotteur Français, Arab, Anglo-Arab and Selle Français. Genealogical data and genotypes at seven blood group and nine protein loci were used. Paternal family sizes were found to be unbalanced, especially in Trotteur français, Selle Franqais and Thoroughbred. Average coefficients of inbreeding for offspring born from 1989 to 1992 were 1.02 (Thoroughbred), 1.86 (Trotteur Français), 3.08 (Arab), 1.17 (...

  10. Redefinisi Kaum Paderi Melalui Metodologi Genealogis Foucauldian Sebagai Rekonsiliasi Etnis Minangkabau-Batak

    Directory of Open Access Journals (Sweden)

    Alfi Arifian

    2016-11-01

    Full Text Available Redefinisi Kaum Paderi merupakan konsep pendefinisian Kaum Paderi berdasarkan metodologi genealogis yang menulis sejarah berdasarkan kerangka kekinian. Definisi ini berbeda dari definisi Kaum Paderi dalam pandangan sejarah umum. Redefinisi ini dimaksudkan untuk memetakan gerakan Paderi berdasarkan konsep kekuasaan berbasis keamiran melalui gelar Tuanku Imam Bonjol merujuk kerangka kekuasaan nagari (balad-dalam pemahaman imamah. Tujuan pemetaan gerakan Paderi adalah membuktikan (secara teori bahwa ada dikotomi di tubuh Paderi sebagai gerakan pemurni Islam serta yang bersifat radikal. Dikotomi inilah yang digunakan sebagai dalih untuk membangun wacana rekonsiliasi antara etnis Minangkabau-Batak lantaran konflik masa lalu "Perang Paderi" jilid I.

  11. The Normalising Power of Marriage Law: An Irish Genealogy, 1945 – 2010

    OpenAIRE

    McGowan, Deirdre

    2015-01-01

    Marriage law is often conceptualised as an instrument of power that illegitimately imposes the will of the State on its citizens. Paradoxically, marriage law is also offered as a route to liberation. In this thesis, I question the efficacy of this type of analysis by investigating the actual power effects of marriage law. Using Michel Foucault’s concepts of bio-power and government, and his genealogical approach to history, I identify the role played by marriage law in governing the social do...

  12. The Philosophical Genealogy of Taylor's Social Imaginaries: A Complex History of Ideas and Predecessors.

    Science.gov (United States)

    Vanheeswijck, Guido M

    2017-01-01

    The deepest sources of Charles Taylor's use of the concept "social imaginaries" are often related to political philosophy or social anthropology (Anderson, Castoriadis). The purpose of this article is to show that they also form part of Taylor's struggle to overcome the epistemological construal in modern philosophy and culture. Taylor locates the concept "social imaginaries" in the Kantian tradition, identifying their role to that of transcendental schemes. However, there remains a central difference between Kant's transcendental schemes and Taylor's social imaginaries. To elucidate that difference, this article will track the philosophical genealogy of Taylor's concept of "social imaginaries" in three steps.

  13. Rainforest Mathematics

    Science.gov (United States)

    Kilpatrick, Jeremy

    2014-01-01

    This paper addresses the contested way that ethnomathematics has sometimes been received by mathematicians and others and what that disagreement might suggest about issues in mathematics education; namely, (a) the relation of ethnomathematics to academic mathematics; (b) recent efforts to reform secondary school mathematics so that it prepares…

  14. Local Genealogies in a Linear Mixed Model for Genome-wide Association Mapping in Complex Pedigreed Populations

    DEFF Research Database (Denmark)

    Sahana, Goutam; Mailund, Thomas; Lund, Mogens Sandø

    2011-01-01

    be extended to incorporate other effects in a straightforward and rigorous fashion. Here, we present a complementary approach, called ‘GENMIX (genealogy based mixed model)’ which combines advantages from two powerful GWAS methods: genealogy-based haplotype grouping and MMA. Subjects and Methods: We validated......Introduction: The state-of-the-art for dealing with multiple levels of relationship among the samples in genome-wide association studies (GWAS) is unified mixed model analysis (MMA). This approach is very flexible, can be applied to both family-based and population-based samples, and can...

  15. Mathematical modelling

    DEFF Research Database (Denmark)

    Blomhøj, Morten

    2004-01-01

    Developing competences for setting up, analysing and criticising mathematical models are normally seen as relevant only from and above upper secondary level. The general belief among teachers is that modelling activities presuppose conceptual understanding of the mathematics involved. Mathematical...... roots for the construction of important mathematical concepts. In addition competences for setting up, analysing and criticising modelling processes and the possible use of models is a formative aim in this own right for mathematics teaching in general education. The paper presents a theoretical...... modelling, however, can be seen as a practice of teaching that place the relation between real life and mathematics into the centre of teaching and learning mathematics, and this is relevant at all levels. Modelling activities may motivate the learning process and help the learner to establish cognitive...

  16. Mathematical Modeling and Pure Mathematics

    Science.gov (United States)

    Usiskin, Zalman

    2015-01-01

    Common situations, like planning air travel, can become grist for mathematical modeling and can promote the mathematical ideas of variables, formulas, algebraic expressions, functions, and statistics. The purpose of this article is to illustrate how the mathematical modeling that is present in everyday situations can be naturally embedded in…

  17. Estimating mutation parameters, population history and genealogy simultaneously from temporally spaced sequence data.

    Science.gov (United States)

    Drummond, Alexei J; Nicholls, Geoff K; Rodrigo, Allen G; Solomon, Wiremu

    2002-07-01

    Molecular sequences obtained at different sampling times from populations of rapidly evolving pathogens and from ancient subfossil and fossil sources are increasingly available with modern sequencing technology. Here, we present a Bayesian statistical inference approach to the joint estimation of mutation rate and population size that incorporates the uncertainty in the genealogy of such temporally spaced sequences by using Markov chain Monte Carlo (MCMC) integration. The Kingman coalescent model is used to describe the time structure of the ancestral tree. We recover information about the unknown true ancestral coalescent tree, population size, and the overall mutation rate from temporally spaced data, that is, from nucleotide sequences gathered at different times, from different individuals, in an evolving haploid population. We briefly discuss the methodological implications and show what can be inferred, in various practically relevant states of prior knowledge. We develop extensions for exponentially growing population size and joint estimation of substitution model parameters. We illustrate some of the important features of this approach on a genealogy of HIV-1 envelope (env) partial sequences.

  18. The joint effects of background selection and genetic recombination on local gene genealogies.

    Science.gov (United States)

    Zeng, Kai; Charlesworth, Brian

    2011-09-01

    Background selection, the effects of the continual removal of deleterious mutations by natural selection on variability at linked sites, is potentially a major determinant of DNA sequence variability. However, the joint effects of background selection and genetic recombination on the shape of the neutral gene genealogy have proved hard to study analytically. The only existing formula concerns the mean coalescent time for a pair of alleles, making it difficult to assess the importance of background selection from genome-wide data on sequence polymorphism. Here we develop a structured coalescent model of background selection with recombination and implement it in a computer program that efficiently generates neutral gene genealogies for an arbitrary sample size. We check the validity of the structured coalescent model against forward-in-time simulations and show that it accurately captures the effects of background selection. The model produces more accurate predictions of the mean coalescent time than the existing formula and supports the conclusion that the effect of background selection is greater in the interior of a deleterious region than at its boundaries. The level of linkage disequilibrium between sites is elevated by background selection, to an extent that is well summarized by a change in effective population size. The structured coalescent model is readily extendable to more realistic situations and should prove useful for analyzing genome-wide polymorphism data.

  19. When Markers Meet Marketing: Ethnicity, Race, Hybridity, and Kinship in Genetic Genealogy Television Advertising

    Directory of Open Access Journals (Sweden)

    Christine Scodari

    2017-12-01

    Full Text Available The essay explores issues pertaining to genetics vs. culture in understandings of kinship, hybridity as a disruptor of essentialist conceptions of race, the fetishization of ethnicity and culture, racist misuses of genetic science, processes of racialization, and counter-hegemonic resistance. Thirty- and sixty-second television advertisements airing in the U.S. from the 23andMe and AncestryDNA genetic genealogy testing services are analyzed in this context. The investigation demonstrates that genetic ancestry testing providers are well aware that their enterprise is premised on belief in the superiority of biological kinship and that hybridity is mobilized primarily as a marketing opportunity with ethnic components signified in shorthand by fetishized objects. Moreover, the categories of race and ethnicity presented in the ads give cover to racist abusers of genetic science, as the ads are consistent with socially constructed racial classifications. While maintaining this consistency, the categories are subject to adjustment based on the expectations of consumers. Resistance is possible in the use of genetic ancestry by descendants of African slaves to make localized connections to Africa, something that conventional genealogy seldom provides.

  20. Genetic diversity of dog breeds: within-breed diversity comparing genealogical and molecular data.

    Science.gov (United States)

    Leroy, G; Verrier, E; Meriaux, J C; Rognon, X

    2009-06-01

    The genetic diversity of 61 dog breeds raised in France was investigated. Genealogical analyses were performed on the pedigree file of the French kennel club. A total of 1514 dogs were also genotyped using 21 microsatellite markers. For animals born from 2001 to 2005, the average coefficient of inbreeding ranged from 0.2% to 8.8% and the effective number of ancestors ranged from 9 to 209, according to the breed. The mean value of heterozygosity was 0.62 over all breeds (range 0.37-0.77). At the breed level, few correlations were found between genealogical and molecular parameters. Kinship coefficients and individual similarity estimators were, however, significantly correlated, with the best mean correlation being found for the Lynch & Ritland estimator (r = 0.43). According to both approaches, it was concluded that special efforts should be made to maintain diversity for three breeds, namely the Berger des Pyrénées, Braque Saint-Germain and Bull Terrier.

  1. A Multigene Approach for Comparing Genealogy of Betacoronavirus from Cattle and Horses

    Directory of Open Access Journals (Sweden)

    Iracema N. Barros

    2013-01-01

    Full Text Available Gastroenteritis is one of the leading causes of morbidity and mortality among young and newborn animals and is often caused by multiple intestinal infections, with rotavirus and bovine coronavirus (BCoV being the main viral causes in cattle. Given that BCoV is better studied than equine coronaviruses and given the possibility of interspecies transmission of these viruses, this research was designed to compare the partial sequences of the spike glycoprotein (S, hemagglutinin-esterase protein (HE, and nucleoprotein (N genes from coronaviruses from adult cattle with winter dysentery, calves with neonatal diarrhea, and horses. To achieve this, eleven fecal samples from dairy cows with winter dysentery, three from calves, and two from horses, all from Brazil, were analysed. It could be concluded that the enteric BCoV genealogy from newborn and adult cattle is directly associated with geographic distribution patterns, when S and HE genes are taken into account. A less-resolved genealogy exists for the HE and N genes in cattle, with a trend for an age-related segregation pattern. The coronavirus strains from horses revealed Betacoronavirus sequences indistinguishable from those found in cattle, a fact previously unknown.

  2. Theoretical Mathematics

    Science.gov (United States)

    Stöltzner, Michael

    Answering to the double-faced influence of string theory on mathematical practice and rigour, the mathematical physicists Arthur Jaffe and Frank Quinn have contemplated the idea that there exists a `theoretical' mathematics (alongside `theoretical' physics) whose basic structures and results still require independent corroboration by mathematical proof. In this paper, I shall take the Jaffe-Quinn debate mainly as a problem of mathematical ontology and analyse it against the backdrop of two philosophical views that are appreciative towards informal mathematical development and conjectural results: Lakatos's methodology of proofs and refutations and John von Neumann's opportunistic reading of Hilbert's axiomatic method. The comparison of both approaches shows that mitigating Lakatos's falsificationism makes his insights about mathematical quasi-ontology more relevant to 20th century mathematics in which new structures are introduced by axiomatisation and not necessarily motivated by informal ancestors. The final section discusses the consequences of string theorists' claim to finality for the theory's mathematical make-up. I argue that ontological reductionism as advocated by particle physicists and the quest for mathematically deeper axioms do not necessarily lead to identical results.

  3. Mathematics for multimedia

    CERN Document Server

    Wickerhauser, Mladen Victor

    2003-01-01

    Mathematics and Multimedia focuses on the mathematics behind multimedia applications. This timely and thoroughly modern text is a rigorous survey of selected results from algebra and analysis, requiring only undergraduate math skills.The topics are `gems' chosen for their usefulness in understanding and creating application software for multimedia signal processing and communication.The book is aimed at a wide audience, including computer science and mathematics majors and those interested in employing mathematics in multimedia design and implementation. For the instructor, the material is divided into six chapters that may be presented in six lecture hours each. Thus, the entire text may be covered in one semester, with time left for examinations and student projects. For the student,there are more than 100 exercises with complete solutions, and numerous example programs in Standard C. Each chapter ends with suggestions for further reading. A companion website provides more insight for both instructors and s...

  4. "Father to no one": gender, genealogy, and storytelling in go down, Moses "Father to no one": gender, genealogy, and storytelling in go down, Moses

    Directory of Open Access Journals (Sweden)

    Barbara Ladd

    2008-04-01

    Full Text Available "Was", the first story of Go Down, Moses, opens with the disclaimer that the protagonist Isaac McCaslin is "father to no one" and that the story to follow: was not something participated in or even seen by himself, but by his elder cousin, McCaslin Edmonds, grandson of Isaac's father's sister and so descended by the distaff, yet notwithstanding the inheritor, and in his time the bequestor, of that which some had thought then and some still thought should have been Isaac's, since his was the name in which the title to the land had first been granted from the Indian patent and which some of the descendants of his father's slaves still bore in the land. But Isaac was not one of these... (3. What is almost immediately clear is that the hook opens with issues of gender, genealogy, and inheritance foregrounded, and that these issues concern not merely the transmission of land from generation to generation but the transmission of stories, a kind of "naming" of one's relationship to the past that echoes the assigning of family names in the above passage. "Was", the first story of Go Down, Moses, opens with the disclaimer that the protagonist Isaac McCaslin is "father to no one" and that the story to follow: was not something participated in or even seen by himself, but by his elder cousin, McCaslin Edmonds, grandson of Isaac's father's sister and so descended by the distaff, yet notwithstanding the inheritor, and in his time the bequestor, of that which some had thought then and some still thought should have been Isaac's, since his was the name in which the title to the land had first been granted from the Indian patent and which some of the descendants of his father's slaves still bore in the land. But Isaac was not one of these... (3. What is almost immediately clear is that the hook opens with issues of gender, genealogy, and inheritance foregrounded, and that these issues concern not merely the transmission of land

  5. Projectables

    DEFF Research Database (Denmark)

    Rasmussen, Troels A.; Merritt, Timothy R.

    2017-01-01

    CNC cutting machines have become essential tools for designers and architects enabling rapid prototyping, model-building and production of high quality components. Designers often cut from new materials, discarding the irregularly shaped remains. We introduce ProjecTables, a visual augmented...... reality system for interactive packing of model parts onto sheet materials. ProjecTables enables designers to (re)use scrap materials for CNC cutting that would have been previously thrown away, at the same time supporting aesthetic choices related to wood grain, avoiding surface blemishes, and other...... relevant material properties. We conducted evaluations of ProjecTables with design students from Aarhus School of Architecture, demonstrating that participants could quickly and easily place and orient model parts reducing material waste. Contextual interviews and ideation sessions led to a deeper...

  6. Mathematics everywhere

    CERN Document Server

    Aigner, Martin; Spain, Philip G

    2010-01-01

    Mathematics is all around us. Often we do not realize it, though. Mathematics Everywhere is a collection of presentations on the role of mathematics in everyday life, through science, technology, and culture. The common theme is the unique position of mathematics as the art of pure thought and at the same time as a universally applicable science. The authors are renowned mathematicians; their presentations cover a wide range of topics. From compact discs to the stock exchange, from computer tomography to traffic routing, from electronic money to climate change, they make the "math inside" unde

  7. Financial mathematics

    CERN Document Server

    Jothi, A Lenin

    2009-01-01

    Financial services, particularly banking and insurance services is the prominent sector for the development of a nation. After the liberalisation of financial sector in India, the scope of getting career opportunities has been widened. It is heartening to note that various universities in India have introduced professional courses on banking and insurance. A new field of applied mathematics has come into prominence under the name of Financial Mathematics. Financial mathematics has attained much importance in the recent years because of the role played by mathematical concepts in decision - m

  8. Mathematical scandals

    CERN Document Server

    Pappas, Theoni

    1997-01-01

    In this highly readable volume of vignettes of mathematical scandals and gossip, Theoni Pappas assembles 29 fascinating stories of intrigue and the bizarre ? in short, the human background of the history of mathematics. Might a haberdasher have changed Einstein's life? Why was the first woman mathematician murdered? How come there's no Nobel Prize in mathematics?Mathematics is principally about numbers, equations, and solutions, all of them precise and timeless. But, behind this arcane matter lies the sometimes sordid world of real people, whose rivalries and deceptions

  9. Engineering mathematics

    CERN Document Server

    Stroud, K A

    2013-01-01

    A groundbreaking and comprehensive reference that's been a bestseller since it first debuted in 1970, the new seventh edition of Engineering Mathematics has been thoroughly revised and expanded. Providing a broad mathematical survey, this innovative volume covers a full range of topics from the very basic to the advanced. Whether you're an engineer looking for a useful on-the-job reference or want to improve your mathematical skills, or you are a student who needs an in-depth self-study guide, Engineering Mathematics is sure to come in handy time and time again.

  10. A Review of New Mathematics Curriculum Materials.

    Science.gov (United States)

    Vanderlin, Carl J., Jr.

    This manual outlines the nature of some of the major curriculum projects in mathematics and lists materials which are available from these projects. An introductory statement concerning the history and philosophy of each program is indicated. The curriculum projects reported on are: (1) Boston College Mathematics Institute, (2) Cambridge…

  11. Divorcing China: The Swing from the Patrilineal Genealogy of China to the Matrilineal Genealogy of Taiwan in Taiwan’s National Imagination

    Directory of Open Access Journals (Sweden)

    Yin C. Chuang

    2011-01-01

    Full Text Available This paper explores the popular concept of the relationship between Taiwan and China as a feminine/ masculine dichotomy which has been constructed within Taiwan’s national imagination. First, I will focus on how this dichotomy has been created within the process of identity-shifting in Taiwan since the 1990s as manifested in Taiwanese pop songs. Second, I will demonstrate how it has been appropriated within the process of nation-building. Two primary questions will be addressed: How is the national imagination of Taiwan in Taiwanese pop songs constructed through maternal and feminine images? How is the matrilineal genealogy in Taiwanese pop songs appropriated by the opposition camp, namely the Democratic Progressive Party (DPP, to mobilize voters? I will investigate, from a cultural studies perspective, how cultural imagination has come to serve as the vehicle to formulate resistance, mobilize voters, gain power and, most importantly, reconstruct Taiwanese nationalism within Taiwan’s political limbo for decades. Furthermore, Margaret Somers’ discussion (1993, 1994, 1995a, 1995b, 1995c; Somers and Gibson 1994 of narrative identity is adopted as the framework for this paper in order to look at how identities are constructed within and across multiple realms. My research methods consist of conducting in-depth interviews and analysing texts.

  12. Determining Y-STR mutation rates in deep-routing genealogies: Identification of haplogroup differences.

    Science.gov (United States)

    Claerhout, Sofie; Vandenbosch, Michiel; Nivelle, Kelly; Gruyters, Leen; Peeters, Anke; Larmuseau, Maarten H D; Decorte, Ronny

    2018-05-01

    Knowledge of Y-chromosomal short tandem repeat (Y-STR) mutation rates is essential to determine the most recent common ancestor (MRCA) in familial searching or genealogy research. Up to now, locus-specific mutation rates have been extensively examined especially for commercially available forensic Y-STRs, while haplogroup specific mutation rates have not yet been investigated in detail. Through 450 patrilineally related namesakes distributed over 212 deep-rooting genealogies, the individual mutation rates of 42 Y-STR loci were determined, including 27 forensic Y-STR loci from the Yfiler ® Plus kit and 15 additional Y-STR loci (DYS388, DYS426, DYS442, DYS447, DYS454, DYS455, DYS459a/b, DYS549, DYS607, DYS643, DYS724a/b and YCAIIa/b). At least 726 mutations were observed over 148,596 meiosis and individual Y-STR mutation rates varied from 2.83 × 10 -4 to 1.86 × 10 -2 . The mutation rate was significantly correlated with the average allele size, the complexity of the repeat motif sequence and the age of the father. Significant differences in average Y-STR mutations rates were observed when haplogroup 'I & J' (4.03 × 10 -3 mutations/generation) was compared to 'R1b' (5.35 × 10 -3 mutations/generation) and to the overall mutation rate (5.03 × 10 -3 mutations/generation). A difference in allele size distribution was identified as the only cause for these haplogroup specific mutation rates. The haplogroup specific mutation rates were also present within the commercially available Y-STR kits (Yfiler ® , PowerPlex ® Y23 System and Yfiler ® Plus). This observation has consequences for applications where an average Y-STR mutation rate is used, e.g. tMRCA estimations in familial searching and genealogy research. Copyright © 2018 Elsevier B.V. All rights reserved.

  13. Mathematical logic

    CERN Document Server

    Kleene, Stephen Cole

    1967-01-01

    Undergraduate students with no prior instruction in mathematical logic will benefit from this multi-part text. Part I offers an elementary but thorough overview of mathematical logic of 1st order. Part II introduces some of the newer ideas and the more profound results of logical research in the 20th century. 1967 edition.

  14. Making Mathematics.

    Science.gov (United States)

    Huckstep, Peter

    2002-01-01

    Contends teachers must resist the temptation to suggest that, while children can create stories and melodies, they cannot create mathematics. Quotes mathematician G. H. Hardy: "A mathematician, like a painter or poet, is a 'maker' of patterns." Considers mathematics should be able to stand up for itself. (BT)

  15. Mathematical psychology.

    Science.gov (United States)

    Batchelder, William H

    2010-09-01

    Mathematical psychology is a sub-field of psychology that started in the 1950s and has continued to grow as an important contributor to formal psychological theory, especially in the cognitive areas of psychology such as learning, memory, classification, choice response time, decision making, attention, and problem solving. In addition, there are several scientific sub-areas that were originated by mathematical psychologists such as the foundations of measurement, stochastic memory models, and psychologically motivated reformulations of expected utility theory. Mathematical psychology does not include all uses of mathematics and statistics in psychology, and indeed there is a long history of such uses especially in the areas of perception and psychometrics. What is most unique about mathematical psychology is its approach to theory construction. While accepting the behaviorist dictum that the data in psychology must be observable and replicable, mathematical models are specified in terms of unobservable formal constructs that can predict detailed aspects of data across multiple experimental and natural settings. By now almost all the substantive areas of cognitive and experimental psychology have formal mathematical models and theories, and many of these are due to researchers that identify with mathematical psychology. Copyright © 2010 John Wiley & Sons, Ltd. For further resources related to this article, please visit the WIREs website. Copyright © 2010 John Wiley & Sons, Ltd.

  16. Mathematics 2

    CERN Document Server

    Kodaira, Kunihiko

    1996-01-01

    This is the translation from the Japanese textbook for the grade 11 course, "General Mathematics". It is part of the easier of the three elective courses in mathematics offered at this level and is taken by about 40% of students. The book covers basic notions of probability and statistics, vectors, exponential, logarithmic, and trigonometric functions, and an introduction to differentiation and integration.

  17. Mathematical biology

    CERN Document Server

    Murray, James D

    1993-01-01

    The book is a textbook (with many exercises) giving an in-depth account of the practical use of mathematical modelling in the biomedical sciences. The mathematical level required is generally not high and the emphasis is on what is required to solve the real biological problem. The subject matter is drawn, e.g. from population biology, reaction kinetics, biological oscillators and switches, Belousov-Zhabotinskii reaction, reaction-diffusion theory, biological wave phenomena, central pattern generators, neural models, spread of epidemics, mechanochemical theory of biological pattern formation and importance in evolution. Most of the models are based on real biological problems and the predictions and explanations offered as a direct result of mathematical analysis of the models are important aspects of the book. The aim is to provide a thorough training in practical mathematical biology and to show how exciting and novel mathematical challenges arise from a genuine interdisciplinary involvement with the biosci...

  18. Mathematics unbound

    CERN Document Server

    Parshall, Karen Hunger

    2002-01-01

    Although today's mathematical research community takes its international character very much for granted, this "global nature" is relatively recent, having evolved over a period of roughly 150 years-from the beginning of the nineteenth century to the middle of the twentieth century. During this time, the practice of mathematics changed from being centered on a collection of disparate national communities to being characterized by an international group of scholars for whom the goal of mathematical research and cooperation transcended national boundaries. Yet, the development of an international community was far from smooth and involved obstacles such as war, political upheaval, and national rivalries. Until now, this evolution has been largely overlooked by historians and mathematicians alike. This book addresses the issue by bringing together essays by twenty experts in the history of mathematics who have investigated the genesis of today's international mathematical community. This includes not only develo...

  19. Nuclear medicine and mathematics

    Energy Technology Data Exchange (ETDEWEB)

    Pedroso de Lima, J.J. [Dept. de Biofisica e Proc. de Imagem, IBILI - Faculdade de Medicina, Coimbra (Portugal)

    1996-06-01

    The purpose of this review is not to present a comprehensive description of all the mathematical tools used in nuclear medicine, but to emphasize the importance of the mathematical method in nuclear medicine and to elucidate some of the mathematical concepts currently used. We can distinguish three different areas in which mathematical support has been offered to nuclear medicine: Physiology, methodology and data processing. Nevertheless, the boundaries between these areas can be indistinct. It is impossible in a single article to give even an idea of the extent and complexity of the procedures currently usede in nuclear medicine, such as image processing, reconstruction from projections and artificial intelligence. These disciplines do not belong to nuclear medicine: They are already branches of engineering, and my interest will reside simply in revealing a little of the elegance and the fantastic potential of these new `allies` of nuclear medicine. In this review the mathematics of physiological interpretation and methodology are considered together in the same section. General aspects of data-processing methods, including image processing and artificial intelligence, are briefly analysed. The mathematical tools that are most often used to assist the interpretation of biological phenomena in nuclear medicine are considered; these include convolution and deconvolution methods, Fourier analysis, factorial analysis and neural networking. (orig.)

  20. Nuclear medicine and mathematics

    International Nuclear Information System (INIS)

    Pedroso de Lima, J.J.

    1996-01-01

    The purpose of this review is not to present a comprehensive description of all the mathematical tools used in nuclear medicine, but to emphasize the importance of the mathematical method in nuclear medicine and to elucidate some of the mathematical concepts currently used. We can distinguish three different areas in which mathematical support has been offered to nuclear medicine: Physiology, methodology and data processing. Nevertheless, the boundaries between these areas can be indistinct. It is impossible in a single article to give even an idea of the extent and complexity of the procedures currently usede in nuclear medicine, such as image processing, reconstruction from projections and artificial intelligence. These disciplines do not belong to nuclear medicine: They are already branches of engineering, and my interest will reside simply in revealing a little of the elegance and the fantastic potential of these new 'allies' of nuclear medicine. In this review the mathematics of physiological interpretation and methodology are considered together in the same section. General aspects of data-processing methods, including image processing and artificial intelligence, are briefly analysed. The mathematical tools that are most often used to assist the interpretation of biological phenomena in nuclear medicine are considered; these include convolution and deconvolution methods, Fourier analysis, factorial analysis and neural networking. (orig.)

  1. VEDIC MATHEMATICS

    Directory of Open Access Journals (Sweden)

    Sead Rešić

    2015-09-01

    Full Text Available It is very difficult to motivate students when it comes to a school subject like Mathematics. Teachers spend a lot of time trying to find something that will arouse interest in students. It is particularly difficult to find materials that are motivating enough for students that they eagerly wait for the next lesson. One of the solutions may be found in Vedic Mathematics. Traditional methods of teaching Mathematics create fear of this otherwise interesting subject in the majority of students. Fear increases failure. Often the traditional, conventional mathematical methods consist of very long lessons which are difficult to understand. Vedic Mathematics is an ancient system that is very flexible and encourages the development of intuition and innovation. It is a mental calculating tool that does not require a calculator because the calculator is embedded in each of us. Starting from the above problems of fear and failure in Mathematics, the goal of this paper is to do research with the control and the experimental group and to compare the test results. Two tests should be done for each of the groups. The control group would do the tests in the conventional way. The experimental group would do the first test in a conventional manner and then be subjected to different treatment, that is to say, be taught on the basis of Vedic Mathematics. After that, the second group would do the second test according to the principles of Vedic Mathematics. Expectations are that after short lectures on Vedic mathematics results of the experimental group would improve and that students will show greater interest in Mathematics.

  2. Michel Foucault and the genealogy as a criticism of the present

    Directory of Open Access Journals (Sweden)

    Selvino José Assmann

    2007-04-01

    Full Text Available The main goal of this paper is to analyze the criticism to modernity that is in Foucault’s genealogy. First we discuss Focault’s analysis of Kant’s article on Aufklärung and Baudelaire’s concept of dandy. So, we focus gave emphasis the “truth analytic” and its ontextualization made by Foucault of the social role of an intellectual in the light of the great changes in knowledge and in the practices of power in the last decades. To conclude, we suggest that, by studying the Aufklärung investigating the excess of modern racionality, Foucault tries to reassess the possibilities of freedom practices, sustaining the criticism exercise as philosophical ethos. This is needed to redefine the governability and ethical and political commitments made by the agents in different social places.

  3. Pareto genealogies arising from a Poisson branching evolution model with selection.

    Science.gov (United States)

    Huillet, Thierry E

    2014-02-01

    We study a class of coalescents derived from a sampling procedure out of N i.i.d. Pareto(α) random variables, normalized by their sum, including β-size-biasing on total length effects (β Poisson-Dirichlet (α, -β) Ξ-coalescent (α ε[0, 1)), or to a family of continuous-time Beta (2 - α, α - β)Λ-coalescents (α ε[1, 2)), or to the Kingman coalescent (α ≥ 2). We indicate that this class of coalescent processes (and their scaling limits) may be viewed as the genealogical processes of some forward in time evolving branching population models including selection effects. In such constant-size population models, the reproduction step, which is based on a fitness-dependent Poisson Point Process with scaling power-law(α) intensity, is coupled to a selection step consisting of sorting out the N fittest individuals issued from the reproduction step.

  4. Evolutionary analyses of non-genealogical bonds produced by introgressive descent.

    Science.gov (United States)

    Bapteste, Eric; Lopez, Philippe; Bouchard, Frédéric; Baquero, Fernando; McInerney, James O; Burian, Richard M

    2012-11-06

    All evolutionary biologists are familiar with evolutionary units that evolve by vertical descent in a tree-like fashion in single lineages. However, many other kinds of processes contribute to evolutionary diversity. In vertical descent, the genetic material of a particular evolutionary unit is propagated by replication inside its own lineage. In what we call introgressive descent, the genetic material of a particular evolutionary unit propagates into different host structures and is replicated within these host structures. Thus, introgressive descent generates a variety of evolutionary units and leaves recognizable patterns in resemblance networks. We characterize six kinds of evolutionary units, of which five involve mosaic lineages generated by introgressive descent. To facilitate detection of these units in resemblance networks, we introduce terminology based on two notions, P3s (subgraphs of three nodes: A, B, and C) and mosaic P3s, and suggest an apparatus for systematic detection of introgressive descent. Mosaic P3s correspond to a distinct type of evolutionary bond that is orthogonal to the bonds of kinship and genealogy usually examined by evolutionary biologists. We argue that recognition of these evolutionary bonds stimulates radical rethinking of key questions in evolutionary biology (e.g., the relations among evolutionary players in very early phases of evolutionary history, the origin and emergence of novelties, and the production of new lineages). This line of research will expand the study of biological complexity beyond the usual genealogical bonds, revealing additional sources of biodiversity. It provides an important step to a more realistic pluralist treatment of evolutionary complexity.

  5. Molecular Genealogy of a Mongol Queen's Family and Her Possible Kinship with Genghis Khan.

    Science.gov (United States)

    Lkhagvasuren, Gavaachimed; Shin, Heejin; Lee, Si Eun; Tumen, Dashtseveg; Kim, Jae-Hyun; Kim, Kyung-Yong; Kim, Kijeong; Park, Ae Ja; Lee, Ho Woon; Kim, Mi Jin; Choi, Jaesung; Choi, Jee-Hye; Min, Na Young; Lee, Kwang-Ho

    2016-01-01

    Members of the Mongol imperial family (designated the Golden family) are buried in a secret necropolis; therefore, none of their burial grounds have been found. In 2004, we first discovered 5 graves belonging to the Golden family in Tavan Tolgoi, Eastern Mongolia. To define the genealogy of the 5 bodies and the kinship among them, SNP and/or STR profiles of mitochondria, autosomes, and Y chromosomes were analyzed. Four of the 5 bodies were determined to carry the mitochondrial DNA haplogroup D4, while the fifth carried haplogroup CZ, indicating that this individual had no kinship with the others. Meanwhile, Y-SNP and Y-STR profiles indicate that the males examined belonged to the R1b-M343 haplogroup. Thus, their East Asian D4 or CZ matrilineal and West Eurasian R1b-M343 patrilineal origins reveal genealogical admixture between Caucasoid and Mongoloid ethnic groups, despite a Mongoloid physical appearance. In addition, Y chromosomal and autosomal STR profiles revealed that the four D4-carrying bodies bore the relationship of either mother and three sons or four full siblings with almost the same probability. Moreover, the geographical distribution of R1b-M343-carrying modern-day individuals demonstrates that descendants of Tavan Tolgoi bodies today live mainly in Western Eurasia, with a high frequency in the territories of the past Mongol khanates. Here, we propose that Genghis Khan and his family carried Y-haplogroup R1b-M343, which is prevalent in West Eurasia, rather than the Y-haplogroup C3c-M48, which is prevalent in Asia and which is widely accepted to be present in the family members of Genghis Khan. Additionally, Tavan Tolgoi bodies may have been the product of marriages between the lineage of Genghis Khan's Borjigin clan and the lineage of either the Ongud or Hongirad clans, indicating that these individuals were members of Genghis Khan's immediate family or his close relatives.

  6. Genealogía hipnótica del mito del zombi: The Magic Island (1929

    Directory of Open Access Journals (Sweden)

    Carcavilla Puey, Lorenzo

    2013-06-01

    Full Text Available This is the first of series of articles that aims to study the history and psychological significance of the “myth of the zombie” through the analysis of its allegorical and symbolic elements, based on a myth’s conceptualization extracted from the notions of Jung’s analytical psychology and Eliade’s history of religions. Here, we’ll look deeply into the symbolic genealogy that comes before and it’s inserted in zombie conception in Seabrook’s The magic island (first text where zombie appears as living dead through a comparative analysis with the somnambulist in literature and filmography of “the dark side of animal magnetism and hypnosis” and its connection with the automaton.Este es el primero de una serie de artículos en los que se pretende estudiar la historia y la significación psicológica del “mito del zombi” a través del análisis de sus elementos alegóricos y simbólicos partiendo de una conceptualización de “mito” extraída de las nociones de la psicología analítica de Jung y de la historia de las religiones de Eliade. Aquí profundizaremos en la genealogía simbólica que antecede y se inserta en la concepción del zombi en The Magic Island de Seabrook (primer texto donde aparece el zombi como muerto viviente a través del análisis comparativo con el sonámbulo de la literatura y cinematografía del “lado oscuro del magnetismo animal y la hipnosis” y su relación con el autómata.

  7. The Language of Mathematics in Science

    Science.gov (United States)

    Boohan, Richard

    2016-01-01

    "The Language of Mathematics in Science" is an ASE/Nuffield project aimed at supporting teachers of 11-16 science in the use of mathematical ideas in the science curriculum. Two publications have been produced. This article focuses on the first of these, "The Language of Mathematics in Science: A Guide for Teachers of 11-16…

  8. Engineering mathematics

    CERN Document Server

    Bird, John

    2014-01-01

    A practical introduction to the core mathematics required for engineering study and practiceNow in its seventh edition, Engineering Mathematics is an established textbook that has helped thousands of students to succeed in their exams.John Bird's approach is based on worked examples and interactive problems. This makes it ideal for students from a wide range of academic backgrounds as the student can work through the material at their own pace. Mathematical theories are explained in a straightforward manner, being supported by practical engineering examples and applications in order to ensure

  9. Mathematical physics

    CERN Document Server

    Geroch, Robert

    1985-01-01

    Mathematical Physics is an introduction to such basic mathematical structures as groups, vector spaces, topological spaces, measure spaces, and Hilbert space. Geroch uses category theory to emphasize both the interrelationships among different structures and the unity of mathematics. Perhaps the most valuable feature of the book is the illuminating intuitive discussion of the ""whys"" of proofs and of axioms and definitions. This book, based on Geroch's University of Chicago course, will be especially helpful to those working in theoretical physics, including such areas as relativity, particle

  10. Applied mathematics

    CERN Document Server

    Logan, J David

    2013-01-01

    Praise for the Third Edition"Future mathematicians, scientists, and engineers should find the book to be an excellent introductory text for coursework or self-study as well as worth its shelf space for reference." -MAA Reviews Applied Mathematics, Fourth Edition is a thoroughly updated and revised edition on the applications of modeling and analyzing natural, social, and technological processes. The book covers a wide range of key topics in mathematical methods and modeling and highlights the connections between mathematics and the applied and nat

  11. Speed mathematics

    CERN Document Server

    Handley, Bill

    2012-01-01

    This new, revised edition of the bestselling Speed Mathematics features new chapters on memorising numbers and general information, calculating statistics and compound interest, square roots, logarithms and easy trig calculations. Written so anyone can understand, this book teaches simple strategies that will enable readers to make lightning-quick calculations. People who excel at mathematics use better strategies than the rest of us; they are not necessarily more intelligent. With Speed Mathematics you'll discover methods to make maths easy and fun. This book is perfect for stud

  12. Construction mathematics

    CERN Document Server

    Virdi, Surinder; Virdi, Narinder Kaur

    2014-01-01

    Construction Mathematics is an introductory level mathematics text, written specifically for students of construction and related disciplines. Learn by tackling exercises based on real-life construction maths. Examples include: costing calculations, labour costs, cost of materials and setting out of building components. Suitable for beginners and easy to follow throughout. Learn the essential basic theory along with the practical necessities. The second edition of this popular textbook is fully updated to match new curricula, and expanded to include even more learning exercises. End of chapter exercises cover a range of theoretical as well as practical problems commonly found in construction practice, and three detailed assignments based on practical tasks give students the opportunity to apply all the knowledge they have gained. Construction Mathematics addresses all the mathematical requirements of Level 2 construction NVQs from City & Guilds/CITB and Edexcel courses, including the BTEC First Diploma in...

  13. Mathematical modelling

    CERN Document Server

    2016-01-01

    This book provides a thorough introduction to the challenge of applying mathematics in real-world scenarios. Modelling tasks rarely involve well-defined categories, and they often require multidisciplinary input from mathematics, physics, computer sciences, or engineering. In keeping with this spirit of modelling, the book includes a wealth of cross-references between the chapters and frequently points to the real-world context. The book combines classical approaches to modelling with novel areas such as soft computing methods, inverse problems, and model uncertainty. Attention is also paid to the interaction between models, data and the use of mathematical software. The reader will find a broad selection of theoretical tools for practicing industrial mathematics, including the analysis of continuum models, probabilistic and discrete phenomena, and asymptotic and sensitivity analysis.

  14. Algorithmic mathematics

    CERN Document Server

    Hougardy, Stefan

    2016-01-01

    Algorithms play an increasingly important role in nearly all fields of mathematics. This book allows readers to develop basic mathematical abilities, in particular those concerning the design and analysis of algorithms as well as their implementation. It presents not only fundamental algorithms like the sieve of Eratosthenes, the Euclidean algorithm, sorting algorithms, algorithms on graphs, and Gaussian elimination, but also discusses elementary data structures, basic graph theory, and numerical questions. In addition, it provides an introduction to programming and demonstrates in detail how to implement algorithms in C++. This textbook is suitable for students who are new to the subject and covers a basic mathematical lecture course, complementing traditional courses on analysis and linear algebra. Both authors have given this "Algorithmic Mathematics" course at the University of Bonn several times in recent years.

  15. Mathematical physiology

    CERN Document Server

    Sneyd, James

    2009-01-01

    There has been a long history of interaction between mathematics and physiology. This book looks in detail at a wide selection of mathematical models in physiology, showing how physiological problems can be formulated and studied mathematically, and how such models give rise to interesting and challenging mathematical questions. With its coverage of many recent models it gives an overview of the field, while many older models are also discussed, to put the modern work in context. In this second edition the coverage of basic principles has been expanded to include such topics as stochastic differential equations, Markov models and Gibbs free energy, and the selection of models has also been expanded to include some of the basic models of fluid transport, respiration/perfusion, blood diseases, molecular motors, smooth muscle, neuroendrocine cells, the baroreceptor loop, turboglomerular oscillations, blood clotting and the retina. Owing to this extensive coverage, the second edition is published in two volumes. ...

  16. Mathematical modeling

    CERN Document Server

    Eck, Christof; Knabner, Peter

    2017-01-01

    Mathematical models are the decisive tool to explain and predict phenomena in the natural and engineering sciences. With this book readers will learn to derive mathematical models which help to understand real world phenomena. At the same time a wealth of important examples for the abstract concepts treated in the curriculum of mathematics degrees are given. An essential feature of this book is that mathematical structures are used as an ordering principle and not the fields of application. Methods from linear algebra, analysis and the theory of ordinary and partial differential equations are thoroughly introduced and applied in the modeling process. Examples of applications in the fields electrical networks, chemical reaction dynamics, population dynamics, fluid dynamics, elasticity theory and crystal growth are treated comprehensively.

  17. Mathematical statistics

    CERN Document Server

    Pestman, Wiebe R

    2009-01-01

    This textbook provides a broad and solid introduction to mathematical statistics, including the classical subjects hypothesis testing, normal regression analysis, and normal analysis of variance. In addition, non-parametric statistics and vectorial statistics are considered, as well as applications of stochastic analysis in modern statistics, e.g., Kolmogorov-Smirnov testing, smoothing techniques, robustness and density estimation. For students with some elementary mathematical background. With many exercises. Prerequisites from measure theory and linear algebra are presented.

  18. Mathematics revealed

    CERN Document Server

    Berman, Elizabeth

    1979-01-01

    Mathematics Revealed focuses on the principles, processes, operations, and exercises in mathematics.The book first offers information on whole numbers, fractions, and decimals and percents. Discussions focus on measuring length, percent, decimals, numbers as products, addition and subtraction of fractions, mixed numbers and ratios, division of fractions, addition, subtraction, multiplication, and division. The text then examines positive and negative numbers and powers and computation. Topics include division and averages, multiplication, ratios, and measurements, scientific notation and estim

  19. Mathematics for sustainability

    CERN Document Server

    Roe, John; Jamshidi, Sara

    2018-01-01

    Designed for the 21st century classroom, this textbook poses, refines, and analyzes questions of sustainability in a quantitative environment. Building mathematical knowledge in the context of issues relevant to every global citizen today, this text takes an approach that empowers students of all disciplines to understand and reason with quantitative information. Whatever conclusions may be reached on a given topic, this book will prepare the reader to think critically about their own and other people’s arguments and to support them with careful, mathematical reasoning. Topics are grouped in themes of measurement, flow, connectivity, change, risk, and decision-making. Mathematical thinking is at the fore throughout, as students learn to model sustainability on local, regional, and global scales. Exercises emphasize concepts, while projects build and challenge communication skills. With no prerequisites beyond high school algebra, instructors will find this book a rich resource for engaging all majors in the...

  20. Mathematical potential of special education students

    OpenAIRE

    Peltenburg, M.C.

    2012-01-01

    This PhD research was aimed at investigating the mathematical potential of special education (SE) students. SE students often have a severe delay in their mathematical development compared to peers in regular education. However, there are indications that SE students could attain more and that there might be unused talent in SE students. In the research project, two mathematical domains were chosen as a topic of investigation. One topic is part of the mathematics curriculum in SE and is gener...

  1. The role of genealogy and clinical family histories in documenting possible inheritance patterns for diabetes mellitus in the pre-insulin era: part 2. Genealogic evidence for type 2 diabetes mellitus in Josephine Imperato's paternal and maternal lineages.

    Science.gov (United States)

    Imperato, Pascal James; Imperato, Gavin H

    2009-12-01

    Part 2 presents detailed genealogic information on Josephine Imperato's paternal and maternal lineages extending from four to seven generations into the nineteenth and eighteenth centuries. Among these lineages are some where early adult death over successive generations is perhaps indicative of type 2 diabetes mellitus (type 2 DM). These lineages, all in the town of San Prisco in Italy, include both paternal and maternal ones with the following surnames: Casaccia, Casertano, Cipriano, de Angelis, de Paulis, Peccerillo, Foniciello, di Monaco, Vaccarella, Valenziano, Ventriglia, and Zibella. Genealogic studies of eighteenth and nineteenth century vital records in this area of Italy cannot definitively establish type 2 diabetes mellitus as either an immediate or contributory cause of death. This is because causes of death were not recorded and because disease diagnostic capabilities were largely absent. Genealogic studies of those who lived in Italy in the eighteenth and nineteenth centuries can at best provide data on approximate age at time of death. Early adult death in this era was not uncommon. However, its presence over several successive generations in a lineage raises the possibility of inherited diseases prominent among which is type 2 DM.

  2. Feminismos: teoría y práctica. Genealogía de una discordia

    OpenAIRE

    Cristina Morales Saro

    2015-01-01

    Today, discord between feminist activism and academic feminism is evident. However it reproduced a pattern that is in the basis of Western metaphysics and yet continues unquestioned. We want here problematize the dispute between theory and praxis within feminism, and we will deepen the understanding of it, doing its genealogy, after which we will be able to assess its scope and consider its usefulness or not for feminisms.

  3. Feminismos: teoría y práctica. Genealogía de una discordia

    Directory of Open Access Journals (Sweden)

    Cristina Morales Saro

    2015-12-01

    Full Text Available Today, discord between feminist activism and academic feminism is evident. However it reproduced a pattern that is in the basis of Western metaphysics and yet continues unquestioned. We want here problematize the dispute between theory and praxis within feminism, and we will deepen the understanding of it, doing its genealogy, after which we will be able to assess its scope and consider its usefulness or not for feminisms.

  4. Mathematical Perspectives

    Energy Technology Data Exchange (ETDEWEB)

    Glimm, J.

    2009-10-14

    Progress for the past decade or so has been extraordinary. The solution of Fermat's Last Theorem [11] and of the Poincare Conjecture [1] have resolved two of the most outstanding challenges to mathematics. For both cases, deep and advanced theories and whole subfields of mathematics came into play and were developed further as part of the solutions. And still the future is wide open. Six of the original seven problems from the Clay Foundation challenge remain open, the 23 DARPA challenge problems are open. Entire new branches of mathematics have been developed, including financial mathematics and the connection between geometry and string theory, proposed to solve the problems of quantized gravity. New solutions of the Einstein equations, inspired by shock wave theory, suggest a cosmology model which fits accelerating expansion of the universe possibly eliminating assumptions of 'dark matter'. Intellectual challenges and opportunities for mathematics are greater than ever. The role of mathematics in society continues to grow; with this growth comes new opportunities and some growing pains; each will be analyzed here. We see a broadening of the intellectual and professional opportunities and responsibilities for mathematicians. These trends are also occuring across all of science. The response can be at the level of the professional societies, which can work to deepen their interactions, not only within the mathematical sciences, but also with other scientific societies. At a deeper level, the choices to be made will come from individual mathematicians. Here, of course, the individual choices will be varied, and we argue for respect and support for this diversity of responses. In such a manner, we hope to preserve the best of the present while welcoming the best of the new.

  5. Shuffling the Deck To Ensure Fairness in Dealing: A Commentary on Some Issues of Equity and Mathematics Education from the Perspective of the QUASAR Project.

    Science.gov (United States)

    Silver, Edward A.

    This paper is a reaction to a plenary address, "Fairness in Dealing: Diversity, Psychology, and Mathematics Education" by Suzanne Damarin (SE 057 179). The issues of intentionality, institutional and instructional practices, identity development, and assessment are addressed in regard to the Quantitative Understanding: Amplifying Student…

  6. Nuclear Deterrence. Applications of Elementary Probability to International Relations. Modules and Monographs in Undergraduate Mathematics and Its Applications Project. UMAP Unit 327.

    Science.gov (United States)

    Smith, Harvey A.

    This module is designed to apply mathematical models to nuclear deterrent problems, and to aid users in developing enlightened skepticism about the use of linear models in stability analyses and long-term predictions. An attempt is made at avoiding overwhelming complexities through concentration on land-based missile forces. It is noted that after…

  7. Learning the Work of Ambitious Mathematics Teaching

    Science.gov (United States)

    Anthony, Glenda; Hunter, Roberta

    2013-01-01

    "Learning the Work of Ambitious Mathematics" project was developed to support prospective teachers learn the work of ambitious mathematics teaching. Building on the work of U.S. researchers in the "Learning in, from, and for Teaching Practice" project, we investigate new ways to make practice studyable within the university…

  8. Comparative study of reproductive skew and pair-bond stability using genealogies from 80 small-scale human societies.

    Science.gov (United States)

    Ellsworth, Ryan M; Shenk, Mary K; Bailey, Drew H; Walker, Robert S

    2016-05-01

    Genealogies contain information on the prevalence of different sibling types that result from past reproductive behavior. Full sibling sets stem from stable monogamy, paternal half siblings primarily indicate male reproductive skew, and maternal half siblings reflect unstable pair bonds. Full and half sibling types are calculated for a total of 61,181 siblings from published genealogies for 80 small-scale societies, including foragers, horticulturalists, agriculturalists, and pastoralists from around the world. Most siblings are full (61%) followed by paternal half siblings (27%) and maternal half siblings (13%). Paternal half siblings are positively correlated with more polygynous marriages, higher at low latitudes, and slightly higher in nonforagers, Maternal half sibling fractions are slightly higher at low latitudes but do not vary with subsistence. Partible paternity societies in Amazonia have more paternal half siblings indicating higher male reproductive skew. Sibling counts from genealogies provide a convenient method to simultaneously investigate the reproductive skew and pair-bond stability dimensions of human mating systems cross-culturally. Am. J. Hum. Biol. 28:335-342, 2016. © 2015 Wiley Periodicals, Inc. © 2015 Wiley Periodicals, Inc.

  9. Genealogy construction in a historically isolated population: application to genetic studies of rheumatoid arthritis in the Pima Indian.

    Science.gov (United States)

    Lin, J P; Hirsch, R; Jacobsson, L T; Scott, W W; Ma, L D; Pillemer, S R; Knowler, W C; Kastner, D L; Bale, S J

    1999-01-01

    Due to the characteristics of complex traits, many traits may not be amenable to traditional epidemiologic methods. We illustrate an approach that defines an isolated population as the "unit" for carrying out studies of complex disease. We provide an example using the Pima Indians, a relatively isolated population, in which the incidence and prevalence of Type 2 diabetes, gallbladder disease, and rheumatoid arthritis (RA) are significantly increased compared with the general U.S. population. A previous study of RA in the Pima utilizing traditional methods failed to detect a genetic effect on the occurrence of the disease. Our approach involved constructing a genealogy for this population and using a genealogic index to investigate familial aggregation. We developed an algorithm to identify biological relationships among 88 RA cases versus 4,000 subsamples of age-matched individuals from the same population. Kinship coefficients were calculated for all possible pairs of RA cases, and similarly for the subsamples. The sum of the kinship coefficient among all combination of RA pairs, 5.92, was significantly higher than the average of the 4,000 subsamples, 1.99 (p genealogy can be anticipated to provide valuable information for the genetic study of diseases other than RA. Defining an isolated population as the "unit" in which to assess familial aggregation may be advantageous, especially if there are a limited number of cases in the study population.

  10. A Δ11 desaturase gene genealogy reveals two divergent allelic classes within the European corn borer (Ostrinia nubilalis

    Directory of Open Access Journals (Sweden)

    Harrison Richard G

    2010-04-01

    Full Text Available Abstract Background Moth pheromone mating systems have been characterized at the molecular level, allowing evolutionary biologists to study how changes in protein sequence or gene expression affect pheromone phenotype, patterns of mating, and ultimately, the formation of barriers to gene exchange. Recent studies of Ostrinia pheromones have focused on the diversity of sex pheromone desaturases and their role in the specificity of pheromone production. Here we produce a Δ11 desaturase genealogy within Ostrinia nubilalis. We ask what has been the history of this gene, and whether this history suggests that changes in Δ11 desaturase have been involved in the divergence of the E and Z O. nubilalis pheromone strains. Results The Δ11 desaturase gene genealogy does not differentiate O. nubilalis pheromone strains. However, we find two distinct clades, separated by 2.9% sequence divergence, that do not sort with pheromone strain, geographic origin, or emergence time. We demonstrate that these clades do not represent gene duplicates, but rather allelic variation at a single gene locus. Conclusions Analyses of patterns of variation at the Δ11 desaturase gene in ECB suggest that this enzyme does not contribute to reproductive isolation between pheromone strains (E and Z. However, our genealogy reveals two deeply divergent allelic classes. Standing variation at loci that contribute to mate choice phenotypes may permit novel pheromone mating systems to arise in the presence of strong stabilizing selection.

  11. La extraña idea del desarrollo. Genealogía de un concepto

    Directory of Open Access Journals (Sweden)

    Carlos Eduardo Maldonado

    2017-01-01

    Full Text Available Este artículo elabora una genealogía del concepto de desarrollo. Formulado originalmente por R. Prebisch (1950, el con- cepto sufre varias traducciones, extensiones y modi caciones que terminan asimilándolo a una idea perfectamente distinta. El sentido y el contexto originarios terminan transformándose. Así, el desarrollo termina siendo una apología del capitalismo. Después de una introducción histórica y cientí ca, el artículo desarrolla cuatro argumentos, así: el modelo de desarrollo es una idea extraña; esta idea se ve ampliada y extendida en términos de sostenibilidad; varias críticas, sin embargo, emergen y se ha- cen necesarias; consiguientemente, se hace posible e imperativo un modelo alternativo al desarrollo. Cada una de las secciones mencionadas son justi cadas en cada paso. Al nal se extraen algunas conclusiones, y el artículo termina con una idea fuerte que vincula bancarización y control ciudadano. Palabras clave: Historia de la economía, filosofía de la economía, capitalismo, economía política Abstract This paper carries out a genealogy of the concept of development. Originally stated out by R. Prebisch (1950, the concept su ers a number of translations, extension, and changes that end up with a quite di erent idea than it was originally thought. Both the meaning and framework end up being radically changed. us, development ends as an apology to capitalism. A er a short historical and philosophical introduction, this paper develops four arguments, as follows: the model of economic de- velopment is a weird idea; such an idea is both extended and widened in terms of sustainability; a number of critiques merge, though, that are necessary and feasible; therea er, an alternative model of development becomes at the same time possible and compulsory. Each one of the mentioned paragraphs are justi ed in due time. At the end some conclusions are drawn, ad the paper ends with a string idea that

  12. Mathematical concepts

    CERN Document Server

    Jost, Jürgen

    2015-01-01

    The main intention of this book is to describe and develop the conceptual, structural and abstract thinking of mathematics. Specific mathematical structures are used to illustrate the conceptual approach; providing a deeper insight into mutual relationships and abstract common features. These ideas are carefully motivated, explained and illustrated by examples so that many of the more technical proofs can be omitted. The book can therefore be used: ·         simply as an overview of the panorama of mathematical structures and the relations between them, to be supplemented by more detailed texts whenever you want to acquire a working knowledge of some structure ·         by itself as a first introduction to abstract mathematics ·         together with existing textbooks, to put their results into a more general perspective ·         to gain a new and hopefully deeper perspective after having studied such textbooks Mathematical Concepts has a broader scope and is less detaile...

  13. Molecular Genealogy of a Mongol Queen’s Family and Her Possible Kinship with Genghis Khan

    Science.gov (United States)

    Lkhagvasuren, Gavaachimed; Shin, Heejin; Lee, Si Eun; Tumen, Dashtseveg; Kim, Jae-Hyun; Kim, Kyung-Yong; Kim, Kijeong; Park, Ae Ja; Lee, Ho Woon; Kim, Mi Jin; Choi, Jaesung; Choi, Jee-Hye; Min, Na Young

    2016-01-01

    Members of the Mongol imperial family (designated the Golden family) are buried in a secret necropolis; therefore, none of their burial grounds have been found. In 2004, we first discovered 5 graves belonging to the Golden family in Tavan Tolgoi, Eastern Mongolia. To define the genealogy of the 5 bodies and the kinship among them, SNP and/or STR profiles of mitochondria, autosomes, and Y chromosomes were analyzed. Four of the 5 bodies were determined to carry the mitochondrial DNA haplogroup D4, while the fifth carried haplogroup CZ, indicating that this individual had no kinship with the others. Meanwhile, Y-SNP and Y-STR profiles indicate that the males examined belonged to the R1b-M343 haplogroup. Thus, their East Asian D4 or CZ matrilineal and West Eurasian R1b-M343 patrilineal origins reveal genealogical admixture between Caucasoid and Mongoloid ethnic groups, despite a Mongoloid physical appearance. In addition, Y chromosomal and autosomal STR profiles revealed that the four D4-carrying bodies bore the relationship of either mother and three sons or four full siblings with almost the same probability. Moreover, the geographical distribution of R1b-M343-carrying modern-day individuals demonstrates that descendants of Tavan Tolgoi bodies today live mainly in Western Eurasia, with a high frequency in the territories of the past Mongol khanates. Here, we propose that Genghis Khan and his family carried Y-haplogroup R1b-M343, which is prevalent in West Eurasia, rather than the Y-haplogroup C3c-M48, which is prevalent in Asia and which is widely accepted to be present in the family members of Genghis Khan. Additionally, Tavan Tolgoi bodies may have been the product of marriages between the lineage of Genghis Khan’s Borjigin clan and the lineage of either the Ongud or Hongirad clans, indicating that these individuals were members of Genghis Khan’s immediate family or his close relatives. PMID:27627454

  14. Mathematical biophysics

    CERN Document Server

    Rubin, Andrew

    2014-01-01

    This book presents concise descriptions and analysis of the classical and modern models used in mathematical biophysics. The authors ask the question "what new information can be provided by the models that cannot be obtained directly from experimental data?" Actively developing fields such as regulatory mechanisms in cells and subcellular systems and electron transport and energy transport in membranes are addressed together with more classical topics such as metabolic processes, nerve conduction and heart activity, chemical kinetics, population dynamics, and photosynthesis. The main approach is to describe biological processes using different mathematical approaches necessary to reveal characteristic features and properties of simulated systems. With the emergence of powerful mathematics software packages such as MAPLE, Mathematica, Mathcad, and MatLab, these methodologies are now accessible to a wide audience. Provides succinct but authoritative coverage of a broad array of biophysical topics and models Wr...

  15. Mathematical tapas

    CERN Document Server

    Hiriart-Urruty, Jean-Baptiste

    This book contains a collection of exercises (called “tapas”) at undergraduate level, mainly from the fields of real analysis, calculus, matrices, convexity, and optimization. Most of the problems presented here are non-standard and some require broad knowledge of different mathematical subjects in order to be solved. The author provides some hints and (partial) answers and also puts these carefully chosen exercises into context, presents information on their origins, and comments on possible extensions. With stars marking the levels of difficulty, these tapas show or prove something interesting, challenge the reader to solve and learn, and may have surprising results. This first volume of Mathematical Tapas will appeal to mathematicians, motivated undergraduate students from science-based areas, and those generally interested in mathematics.

  16. Mathematical writing

    CERN Document Server

    Vivaldi, Franco

    2014-01-01

    This book teaches the art of writing mathematics, an essential -and difficult- skill for any mathematics student.   The book begins with an informal introduction on basic writing principles and a review of the essential dictionary for mathematics. Writing techniques are developed gradually, from the small to the large: words, phrases, sentences, paragraphs, to end with short compositions. These may represent the introduction of a concept, the abstract of a presentation or the proof of a theorem. Along the way the student will learn how to establish a coherent notation, mix words and symbols effectively, write neat formulae, and structure a definition.   Some elements of logic and all common methods of proofs are featured, including various versions of induction and existence proofs. The book concludes with advice on specific aspects of thesis writing (choosing of a title, composing an abstract, compiling a bibliography) illustrated by large number of real-life examples. Many exercises are included; over 150...

  17. Physical mathematics

    CERN Document Server

    Cahill, Kevin

    2013-01-01

    Unique in its clarity, examples and range, Physical Mathematics explains as simply as possible the mathematics that graduate students and professional physicists need in their courses and research. The author illustrates the mathematics with numerous physical examples drawn from contemporary research. In addition to basic subjects such as linear algebra, Fourier analysis, complex variables, differential equations and Bessel functions, this textbook covers topics such as the singular-value decomposition, Lie algebras, the tensors and forms of general relativity, the central limit theorem and Kolmogorov test of statistics, the Monte Carlo methods of experimental and theoretical physics, the renormalization group of condensed-matter physics and the functional derivatives and Feynman path integrals of quantum field theory.

  18. TDmat--Mathematics Diagnosis Evaluation Test for Engineering Sciences Students

    Science.gov (United States)

    Pinto, J. S.; Oliveira, M. P.; Anjo, A. B.; Pais, S. I. Vieira; Isidro, R. O.; Silva, M. H.

    2007-01-01

    Since 1989, the Mathematics Education Project (PmatE--Projecto Matematica Ensino) has developed several strategies to improve the success of students in Mathematics. The most important of these are mathematical games for all grades above primary school. The online evaluation of Mathematics subjects is one of PmatE's goals. The implementation of an…

  19. Mathematical Lives

    CERN Document Server

    Bartocci, Claudio; Guerraggio, Angelo; Lucchetti, Roberto; Williams, Kim

    2011-01-01

    Steps forward in mathematics often reverberate in other scientific disciplines, and give rise to innovative conceptual developments or find surprising technological applications. This volume brings to the forefront some of the proponents of the mathematics of the twentieth century, who have put at our disposal new and powerful instruments for investigating the reality around us. The portraits present people who have impressive charisma and wide-ranging cultural interests, who are passionate about defending the importance of their own research, are sensitive to beauty, and attentive to the soci

  20. Quotable Quotes in Mathematics

    Science.gov (United States)

    Lo, Bruce W. N.

    1983-01-01

    As a way to dispel negative feelings toward mathematics, a variety of quotations are given. They are categorized by: what mathematics is, mathematicians, mathematics and other disciplines, different areas of mathematics, mathematics and humor, applications of mathematics, and pure versus applied mathematics. (MNS)

  1. Genetic structure and gene flows within horses: a genealogical study at the french population scale.

    Directory of Open Access Journals (Sweden)

    Pauline Pirault

    Full Text Available Since horse breeds constitute populations submitted to variable and multiple outcrossing events, we analyzed the genetic structure and gene flows considering horses raised in France. We used genealogical data, with a reference population of 547,620 horses born in France between 2002 and 2011, grouped according to 55 breed origins. On average, individuals had 6.3 equivalent generations known. Considering different population levels, fixation index decreased from an overall species FIT of 1.37%, to an average [Formula: see text] of -0.07% when considering the 55 origins, showing that most horse breeds constitute populations without genetic structure. We illustrate the complexity of gene flows existing among horse breeds, a few populations being closed to foreign influence, most, however, being submitted to various levels of introgression. In particular, Thoroughbred and Arab breeds are largely used as introgression sources, since those two populations explain together 26% of founder origins within the overall horse population. When compared with molecular data, breeds with a small level of coancestry also showed low genetic distance; the gene pool of the breeds was probably impacted by their reproducer exchanges.

  2. Genetic structure and gene flows within horses: a genealogical study at the french population scale.

    Science.gov (United States)

    Pirault, Pauline; Danvy, Sophy; Verrier, Etienne; Leroy, Grégoire

    2013-01-01

    Since horse breeds constitute populations submitted to variable and multiple outcrossing events, we analyzed the genetic structure and gene flows considering horses raised in France. We used genealogical data, with a reference population of 547,620 horses born in France between 2002 and 2011, grouped according to 55 breed origins. On average, individuals had 6.3 equivalent generations known. Considering different population levels, fixation index decreased from an overall species FIT of 1.37%, to an average [Formula: see text] of -0.07% when considering the 55 origins, showing that most horse breeds constitute populations without genetic structure. We illustrate the complexity of gene flows existing among horse breeds, a few populations being closed to foreign influence, most, however, being submitted to various levels of introgression. In particular, Thoroughbred and Arab breeds are largely used as introgression sources, since those two populations explain together 26% of founder origins within the overall horse population. When compared with molecular data, breeds with a small level of coancestry also showed low genetic distance; the gene pool of the breeds was probably impacted by their reproducer exchanges.

  3. Beyond Discourse: A Genealogical Analysis of an Intersubjective Transformation Process of Gender

    Directory of Open Access Journals (Sweden)

    Patricia Amigot Leache

    2007-05-01

    Full Text Available This article presents a genealogical analysis of a specific process of transformation of gender. It analyses the shifts of a group of Spanish working-class women in the context of the final years of Franco's dictatorship and the transition to democracy. These women took part in the activities of the so-called Centros de Promoción de la Mujer y Cultura Popular [Centres for Women's Promotion and Popular Culture]. I identify the elements of the transformation processes through in-depth interviews with a sample of women. Through these narrations and the documents of the Centres I show the road that goes from a state of domination (in FOUCAULT's words to a more flexible and mobile situation in which not only are the practical possibilities for these women wider, but also we can witness the transformation of the institution itself. The analysis is made with a FOUCAULTian toolbox, using especially FOUCAULT's analysis of power, his theoretical construction of practices of self and the link he posits between such practices and identity games of truth. The analysis shows the intersubjective nature of the processes and of the practices involved in such transformations. URN: urn:nbn:de:0114-fqs070295

  4. Mythological Recuperation and Performance as Agency for Genealogical Return in Djanet Sears’s Afrika Solo

    Directory of Open Access Journals (Sweden)

    Lekan Balogun

    2018-04-01

    Full Text Available This paper is an examination of Djanet Sears’s Afrika Solo (1990 as a unique example of how Blacks in the global diaspora trace their genealogical roots back to Africa. Drawing from research in anthropology, cultural studies, and performance, the paper purports that Sears’s African-Canadian identity is underlined by her recuperation of a heritage, epistemes and performative aesthetics, and, real or imagined, practices that are not just Afrocentric but specifically Yoruba. Essentially, the paper examines Afrika Solo in the context of Black Aesthetic and more significantly as “text” in a Yoruba sense, which constitutes her own way of “going back to get it.” The paper is divided into two parts: the first part presents a general argument about Sears’s journey back to Africa and the culturally-rooted nature of the performance as opposed to feminist/gender readings of same, while the second part explores ways of understanding the play through the lens of Yoruba ritual and its aesthetics.

  5. Neurotree: a collaborative, graphical database of the academic genealogy of neuroscience.

    Science.gov (United States)

    David, Stephen V; Hayden, Benjamin Y

    2012-01-01

    Neurotree is an online database that documents the lineage of academic mentorship in neuroscience. Modeled on the tree format typically used to describe biological genealogies, the Neurotree web site provides a concise summary of the intellectual history of neuroscience and relationships between individuals in the current neuroscience community. The contents of the database are entirely crowd-sourced: any internet user can add information about researchers and the connections between them. As of July 2012, Neurotree has collected information from 10,000 users about 35,000 researchers and 50,000 mentor relationships, and continues to grow. The present report serves to highlight the utility of Neurotree as a resource for academic research and to summarize some basic analysis of its data. The tree structure of the database permits a variety of graphical analyses. We find that the connectivity and graphical distance between researchers entered into Neurotree early has stabilized and thus appears to be mostly complete. The connectivity of more recent entries continues to mature. A ranking of researcher fecundity based on their mentorship reveals a sustained period of influential researchers from 1850-1950, with the most influential individuals active at the later end of that period. Finally, a clustering analysis reveals that some subfields of neuroscience are reflected in tightly interconnected mentor-trainee groups.

  6. Problematizing special observation in psychiatry: Foucault, archaeology, genealogy, discourse and power/knowledge.

    Science.gov (United States)

    Stevenson, C; Cutcliffe, J

    2006-12-01

    Special observation by mental health professionals is the recommended approach for those people deemed as at risk or risky. Recent research and academic writing have challenged the benefits of observing people/patients who are defined as 'at risk', and a more human engagement process is being recommended. Despite this assault, practice has not changed substantively, suggesting a need for a thorough exploration and questioning of the practices and process. The paper outlines three Foucaultian approaches to historical analysis. It applies aspects of Foucault's archaeology/genealogy, discourse and power/knowledge to explore the practices of special observation as a means of controlling risk, especially suicide risk. We identify the regulatory function of the 'gaze', professional codes and government policy in relation to restricting professional practices. We argue that observation can be related to moral therapy, wherein the person relinquishes madness for responsibility through a disciplinary process and, in governing risk, a 'professional industry' is created. The regulation of statements about people with mental health issues are exposed and related to what can be said and done by professionals. Finally, we look at productive power in relation to observation, and how it is intimately related to resistance. We conclude with 'soft' recommendations for practice discursively produced through the writing of the paper.

  7. Empirical and genealogical analysis of non-vocational adult education in Europe

    Science.gov (United States)

    Manninen, Jyri

    2017-06-01

    Non-formal, non-vocational adult education (NFNVAE) is a low-cost, low-threshold learning activity that generates many benefits for individuals and society, and it should play a more central role in educational policy. NFNVAE's challenge is that it lacks clear concepts and definitions and is, therefore, less systematically covered in statistics, research and surveys. This article seeks to tackle these problems by providing (1) a mapping of NFNVAE courses in 10 European countries and (2) a conceptual framework for NFNVAE. The mapping is based on survey data ( n = 8,646) that contain information on 14,063 courses, which were coded into 24 categories and three general types: civic, liberal and basic skills education. Popular adult education courses (in the radical meaning of the term) were not found among these data; therefore, further mapping is needed. The genealogical analysis shows that ideological discourses and cultural practices should be taken into account when different concepts are used to describe NFNVAE. Especially the concept "popular" needs more clarification, since it is frequently used to refer to several different traditions, for example the Nordic " folkbildning", which is a civic education system, and therefore differs from Latin American popular adult education, which is a radical, non-governmental movement.[Figure not available: see fulltext.

  8. The Great Mathematician Project

    Science.gov (United States)

    Goldberg, Sabrina R.

    2013-01-01

    The Great Mathematician Project (GMP) introduces both mathematically sophisticated and struggling students to the history of mathematics. The rationale for the GMP is twofold: first, mathematics is a uniquely people-centered discipline that is used to make sense of the world; and second, students often express curiosity about the history of…

  9. Applied Mathematical Problems in Engineering

    Directory of Open Access Journals (Sweden)

    Carlos Llopis-Albert

    2016-10-01

    Full Text Available There is a close relationship between engineering and mathematics, which has led to the development of new techniques in recent years. Likewise the developments in technology and computers have led to new ways of teaching mathematics for engineering students and the use of modern techniques and methods.  This research aims to provide insight on how to deal with mathematical problems for engineering students. This is performed by means of a fuzzy set/Qualitative Comparative Analysis applied to conflict resolution of Public Participation Projects in support to the EU Water Framework Directive.

  10. Mathematical cosmology

    International Nuclear Information System (INIS)

    Wainwright, J.

    1990-01-01

    The workshop on mathematical cosmology was devoted to four topics of current interest. This report contains a brief discussion of the historical background of each topic and a concise summary of the content of each talk. The topics were; the observational cosmology program, the cosmological perturbation program, isotropic singularities, and the evolution of Bianchi cosmologies. (author)

  11. Mathematical quantization

    CERN Document Server

    Weaver, Nik

    2001-01-01

    With a unique approach and presenting an array of new and intriguing topics, Mathematical Quantization offers a survey of operator algebras and related structures from the point of view that these objects are quantizations of classical mathematical structures. This approach makes possible, with minimal mathematical detail, a unified treatment of a variety of topics.Detailed here for the first time, the fundamental idea of mathematical quantization is that sets are replaced by Hilbert spaces. Building on this idea, and most importantly on the fact that scalar-valued functions on a set correspond to operators on a Hilbert space, one can determine quantum analogs of a variety of classical structures. In particular, because topologies and measure classes on a set can be treated in terms of scalar-valued functions, we can transfer these constructions to the quantum realm, giving rise to C*- and von Neumann algebras.In the first half of the book, the author quickly builds the operator algebra setting. He uses this ...

  12. Mathematical stereochemistry

    CERN Document Server

    Fujita, Shinsaku

    2015-01-01

    Chirality and stereogenicity are closely related concepts and their differentiation and description is still a challenge in chemoinformatics. A new stereoisogram approach, developed by the author, is introduced in this book, providing a theoretical framework for mathematical aspects of modern stereochemistry. The discussion covers point-groups and permutation symmetry and exemplifies the concepts using organic molecules and inorganic complexes.

  13. Where mathematics come from how the embodied mind brings mathematics into being

    CERN Document Server

    Lakoff, George

    2001-01-01

    This book is about mathematical ideas, about what mathematics means-and why. Abstract ideas, for the most part, arise via conceptual metaphor-metaphorical ideas projecting from the way we function in the everyday physical world. Where Mathematics Comes From argues that conceptual metaphor plays a central role in mathematical ideas within the cognitive unconscious-from arithmetic and algebra to sets and logic to infinity in all of its forms.

  14. Connecting mathematics learning through spatial reasoning

    Science.gov (United States)

    Mulligan, Joanne; Woolcott, Geoffrey; Mitchelmore, Michael; Davis, Brent

    2018-03-01

    Spatial reasoning, an emerging transdisciplinary area of interest to mathematics education research, is proving integral to all human learning. It is particularly critical to science, technology, engineering and mathematics (STEM) fields. This project will create an innovative knowledge framework based on spatial reasoning that identifies new pathways for mathematics learning, pedagogy and curriculum. Novel analytical tools will map the unknown complex systems linking spatial and mathematical concepts. It will involve the design, implementation and evaluation of a Spatial Reasoning Mathematics Program (SRMP) in Grades 3 to 5. Benefits will be seen through development of critical spatial skills for students, increased teacher capability and informed policy and curriculum across STEM education.

  15. The language of mathematics telling mathematical tales

    CERN Document Server

    Barton, Bill

    2008-01-01

    Everyday mathematical ideas are expressed differently in different languages. This book probes those differences and explores their implications for mathematics education, arguing for alternatives to how we teach and learn mathematics.

  16. Understanding in mathematics

    CERN Document Server

    Sierpinska, Anna

    1994-01-01

    The concept of understanding in mathematics with regard to mathematics education is considered in this volume, the main problem for mathematics teachers being how to facilitate their students'' understanding of the mathematics being taught.

  17. Mathematical epidemiology

    CERN Document Server

    Driessche, Pauline; Wu, Jianhong

    2008-01-01

    Based on lecture notes of two summer schools with a mixed audience from mathematical sciences, epidemiology and public health, this volume offers a comprehensive introduction to basic ideas and techniques in modeling infectious diseases, for the comparison of strategies to plan for an anticipated epidemic or pandemic, and to deal with a disease outbreak in real time. It covers detailed case studies for diseases including pandemic influenza, West Nile virus, and childhood diseases. Models for other diseases including Severe Acute Respiratory Syndrome, fox rabies, and sexually transmitted infections are included as applications. Its chapters are coherent and complementary independent units. In order to accustom students to look at the current literature and to experience different perspectives, no attempt has been made to achieve united writing style or unified notation. Notes on some mathematical background (calculus, matrix algebra, differential equations, and probability) have been prepared and may be downlo...

  18. Applied mathematics

    International Nuclear Information System (INIS)

    Nedelec, J.C.

    1988-01-01

    The 1988 progress report of the Applied Mathematics center (Polytechnic School, France), is presented. The research fields of the Center are the scientific calculus, the probabilities and statistics and the video image synthesis. The research topics developed are: the analysis of numerical methods, the mathematical analysis of the physics and mechanics fundamental models, the numerical solution of complex models related to the industrial problems, the stochastic calculus and the brownian movement, the stochastic partial differential equations, the identification of the adaptive filtering parameters, the discrete element systems, statistics, the stochastic control and the development, the image synthesis techniques for education and research programs. The published papers, the congress communications and the thesis are listed [fr

  19. Reduction of radiation risks in patients undergoing some X-ray examinations by using optimal projections: A Monte Carlo program-based mathematical calculation

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    A Chaparian

    2014-01-01

    Full Text Available The objectives of this paper were calculation and comparison of the effective doses, the risks of exposure-induced cancer, and dose reduction in the gonads for male and female patients in different projections of some X-ray examinations. Radiographies of lumbar spine [in the eight projections of anteroposterior (AP, posteroanterior (PA, right lateral (RLAT, left lateral (LLAT, right anterior-posterior oblique (RAO, left anterior-posterior oblique (LAO, right posterior-anterior oblique (RPO, and left posterior-anterior oblique (LPO], abdomen (in the two projections of AP and PA, and pelvis (in the two projections of AP and PA were investigated. A solid-state dosimeter was used for the measuring of the entrance skin exposure. A Monte Carlo program was used for calculation of effective doses, the risks of radiation-induced cancer, and doses to the gonads related to the different projections. Results of this study showed that PA projection of abdomen, lumbar spine, and pelvis radiographies caused 50%-57% lower effective doses than AP projection and 50%-60% reduction in radiation risks. Also use of LAO projection of lumbar spine X-ray examination caused 53% lower effective dose than RPO projection and 56% and 63% reduction in radiation risk for male and female, respectively, and RAO projection caused 28% lower effective dose than LPO projection and 52% and 39% reduction in radiation risk for males and females, respectively. About dose reduction in the gonads, using of the PA position rather than AP in the radiographies of the abdomen, lumbar spine, and pelvis can result in reduction of the ovaries doses in women, 38%, 31%, and 25%, respectively and reduction of the testicles doses in males, 76%, 86%, and 94%, respectively. Also for oblique projections of lumbar spine X-ray examination, with employment of LAO rather than RPO and also RAO rather than LPO, demonstrated 22% and 13% reductions to the ovaries doses and 66% and 54% reductions in the

  20. Dilemma in Teaching Mathematics

    Science.gov (United States)

    Md Kamaruddin, Nafisah Kamariah; Md Amin, Zulkarnain

    2012-01-01

    The challenge in mathematics education is finding the best way to teach mathematics. When students learn the reasoning and proving in mathematics, they will be proficient in mathematics. Students must know mathematics before they can apply it. Symbolism and logic is the key to both the learning of mathematics and its effective application to…

  1. Trends in contemporary mathematics

    CERN Document Server

    Strickland, Elisabetta

    2014-01-01

    This book covers a wide spectrum of hot topics and current trends in mathematics, including noncommutative algebra via deformation theory,  optimal transportation, nonlinear potential theory, kinetic theory and gas dynamics, geometric numerical integration, finite simple groups of small essential dimension, optimal control problems, extended Dynkin diagrams, spin glasses, aspherical closed manifolds, Boltzmann systems, birational geometry of projective varieties and directed graphs, nonlinear diffusion, geometric constructions of extremal metrics on complex manifolds, and Pell’s equation in polynomials. The book comprises a selection of contributions by leading international mathematicians who were speakers at the "INdAM Day", an initiative dating back to 2004 at which the most recent developments in contemporary mathematics are presented.

  2. Proof Auditing Formalised Mathematics

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    Mark Miles Adams

    2016-01-01

    Full Text Available The first three formalisations of major mathematical proofs have heralded a new age in formalised mathematics, establishing that informal proofs at the limits of what can be understood by humans can be checked by machine. However, formalisation itself can be subject to error, and yet there is currently no accepted process in checking, or even much concern that such checks have not been performed. In this paper, we motivate why we should be concerned about correctness, and argue the need for proof auditing, to rigorously and independently check a formalisation. We discuss the issues involved in performing an audit, and propose an effective and efficient auditing process. Throughout we use the Flyspeck Project, that formalises the Kepler Conjecture proof, to illustrate our point.

  3. TIMSS 2003: Relating dimensions of mathematics attitude to mathematics achievement

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    Kadijević Đorđe

    2008-01-01

    Full Text Available This study, which used a sample of 137,346 students from thirty three countries that participated in the TIMSS 2003 project in the eighth grade, examined the features of the individual and collective relations of three dimensions of mathematics attitude to mathematics achievement (MA, searching for the dimension mostly related to that achievement. The three dimensions of mathematics attitude were self-confidence in learning mathematics (SCLM, liking mathematics (LM and usefulness of mathematics (UM. By utilizing psychometrically valid and reliable measures of the three dimensions, it was found that: (1 each dimension of mathematics attitude alone was positively related to MA for almost all thirty three countries; (2 SCLM was primarily related to MA for thirty one countries; (3 when the two other dimensions were held constant, SCLM was positively related to MA for thirty three countries, LM was negatively related to MA for thirty countries, whereas UM was not related to MA for twenty one countries; (4 positive collective relationships of SCLM, LM and UM to MA considerably varied from country to country. Implications for research and practice are included.

  4. Integrating protein structures and precomputed genealogies in the Magnum database: Examples with cellular retinoid binding proteins

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    Bradley Michael E

    2006-02-01

    Full Text Available Abstract Background When accurate models for the divergent evolution of protein sequences are integrated with complementary biological information, such as folded protein structures, analyses of the combined data often lead to new hypotheses about molecular physiology. This represents an excellent example of how bioinformatics can be used to guide experimental research. However, progress in this direction has been slowed by the lack of a publicly available resource suitable for general use. Results The precomputed Magnum database offers a solution to this problem for ca. 1,800 full-length protein families with at least one crystal structure. The Magnum deliverables include 1 multiple sequence alignments, 2 mapping of alignment sites to crystal structure sites, 3 phylogenetic trees, 4 inferred ancestral sequences at internal tree nodes, and 5 amino acid replacements along tree branches. Comprehensive evaluations revealed that the automated procedures used to construct Magnum produced accurate models of how proteins divergently evolve, or genealogies, and correctly integrated these with the structural data. To demonstrate Magnum's capabilities, we asked for amino acid replacements requiring three nucleotide substitutions, located at internal protein structure sites, and occurring on short phylogenetic tree branches. In the cellular retinoid binding protein family a site that potentially modulates ligand binding affinity was discovered. Recruitment of cellular retinol binding protein to function as a lens crystallin in the diurnal gecko afforded another opportunity to showcase the predictive value of a browsable database containing branch replacement patterns integrated with protein structures. Conclusion We integrated two areas of protein science, evolution and structure, on a large scale and created a precomputed database, known as Magnum, which is the first freely available resource of its kind. Magnum provides evolutionary and structural

  5. Using extended genealogy to estimate components of heritability for 23 quantitative and dichotomous traits.

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    Noah Zaitlen

    2013-05-01

    Full Text Available Important knowledge about the determinants of complex human phenotypes can be obtained from the estimation of heritability, the fraction of phenotypic variation in a population that is determined by genetic factors. Here, we make use of extensive phenotype data in Iceland, long-range phased genotypes, and a population-wide genealogical database to examine the heritability of 11 quantitative and 12 dichotomous phenotypes in a sample of 38,167 individuals. Most previous estimates of heritability are derived from family-based approaches such as twin studies, which may be biased upwards by epistatic interactions or shared environment. Our estimates of heritability, based on both closely and distantly related pairs of individuals, are significantly lower than those from previous studies. We examine phenotypic correlations across a range of relationships, from siblings to first cousins, and find that the excess phenotypic correlation in these related individuals is predominantly due to shared environment as opposed to dominance or epistasis. We also develop a new method to jointly estimate narrow-sense heritability and the heritability explained by genotyped SNPs. Unlike existing methods, this approach permits the use of information from both closely and distantly related pairs of individuals, thereby reducing the variance of estimates of heritability explained by genotyped SNPs while preventing upward bias. Our results show that common SNPs explain a larger proportion of the heritability than previously thought, with SNPs present on Illumina 300K genotyping arrays explaining more than half of the heritability for the 23 phenotypes examined in this study. Much of the remaining heritability is likely to be due to rare alleles that are not captured by standard genotyping arrays.

  6. Using extended genealogy to estimate components of heritability for 23 quantitative and dichotomous traits.

    Science.gov (United States)

    Zaitlen, Noah; Kraft, Peter; Patterson, Nick; Pasaniuc, Bogdan; Bhatia, Gaurav; Pollack, Samuela; Price, Alkes L

    2013-05-01

    Important knowledge about the determinants of complex human phenotypes can be obtained from the estimation of heritability, the fraction of phenotypic variation in a population that is determined by genetic factors. Here, we make use of extensive phenotype data in Iceland, long-range phased genotypes, and a population-wide genealogical database to examine the heritability of 11 quantitative and 12 dichotomous phenotypes in a sample of 38,167 individuals. Most previous estimates of heritability are derived from family-based approaches such as twin studies, which may be biased upwards by epistatic interactions or shared environment. Our estimates of heritability, based on both closely and distantly related pairs of individuals, are significantly lower than those from previous studies. We examine phenotypic correlations across a range of relationships, from siblings to first cousins, and find that the excess phenotypic correlation in these related individuals is predominantly due to shared environment as opposed to dominance or epistasis. We also develop a new method to jointly estimate narrow-sense heritability and the heritability explained by genotyped SNPs. Unlike existing methods, this approach permits the use of information from both closely and distantly related pairs of individuals, thereby reducing the variance of estimates of heritability explained by genotyped SNPs while preventing upward bias. Our results show that common SNPs explain a larger proportion of the heritability than previously thought, with SNPs present on Illumina 300K genotyping arrays explaining more than half of the heritability for the 23 phenotypes examined in this study. Much of the remaining heritability is likely to be due to rare alleles that are not captured by standard genotyping arrays.

  7. Familial aggregation of childhood and adult cancer in the Utah genealogy.

    Science.gov (United States)

    Neale, Rachel E; Stiller, Charles A; Bunch, Kathryn J; Milne, Elizabeth; Mineau, Geraldine P; Murphy, Michael F G

    2013-12-15

    A small proportion of childhood cancer is attributable to known hereditary syndromes, but whether there is any familial component to the remainder remains uncertain. We explored familial aggregation of cancer in a population-based case-control study using genealogical record linkage and designed to overcome limitations of previous studies. Subjects were selected from the Utah Population Database. We compared risk of cancer in adult first-degree relatives of children who were diagnosed with cancer with the risk in relatives of children who had not had a cancer diagnosed. We identified 1,894 childhood cancer cases and 3,788 controls; 7,467 relatives of cases and 14,498 relatives of controls were included in the analysis. Relatives of children with cancer had a higher risk of cancer in adulthood than relatives of children without cancer [odds ratio (OR) 1.31, 95% confidence interval (CI) 1.11-1.56]; this was restricted to mothers and siblings and was not evident in fathers. Familial aggregation appeared stronger among relatives of cases diagnosed before 5 years of age (OR 1.48, 95% CI 1.13-1.95) than among relatives of cases who were older when diagnosed (OR 1.22, 95% CI 0.98-1.51). These findings provide evidence of a generalized excess of cancer in the mothers and siblings of children with cancer. The tendency for risk to be higher in the relatives of children who were younger at cancer diagnosis should be investigated in other large data sets. The excesses of thyroid cancer in parents of children with cancer and of any cancer in relatives of children with leukemia merit further investigation. Copyright © 2013 UICC.

  8. Experimental estimation of mutation rates in a wheat population with a gene genealogy approach.

    Science.gov (United States)

    Raquin, Anne-Laure; Depaulis, Frantz; Lambert, Amaury; Galic, Nathalie; Brabant, Philippe; Goldringer, Isabelle

    2008-08-01

    Microsatellite markers are extensively used to evaluate genetic diversity in natural or experimental evolving populations. Their high degree of polymorphism reflects their high mutation rates. Estimates of the mutation rates are therefore necessary when characterizing diversity in populations. As a complement to the classical experimental designs, we propose to use experimental populations, where the initial state is entirely known and some intermediate states have been thoroughly surveyed, thus providing a short timescale estimation together with a large number of cumulated meioses. In this article, we derived four original gene genealogy-based methods to assess mutation rates with limited bias due to relevant model assumptions incorporating the initial state, the number of new alleles, and the genetic effective population size. We studied the evolution of genetic diversity at 21 microsatellite markers, after 15 generations in an experimental wheat population. Compared to the parents, 23 new alleles were found in generation 15 at 9 of the 21 loci studied. We provide evidence that they arose by mutation. Corresponding estimates of the mutation rates ranged from 0 to 4.97 x 10(-3) per generation (i.e., year). Sequences of several alleles revealed that length polymorphism was only due to variation in the core of the microsatellite. Among different microsatellite characteristics, both the motif repeat number and an independent estimation of the Nei diversity were correlated with the novel diversity. Despite a reduced genetic effective size, global diversity at microsatellite markers increased in this population, suggesting that microsatellite diversity should be used with caution as an indicator in biodiversity conservation issues.

  9. Philanthropy and Human Rights - The Genealogy of the Idea from Antiquity to Global Society

    Directory of Open Access Journals (Sweden)

    Øjvind Larsen

    2013-06-01

    Full Text Available In the last couple of decades, philanthropy has become a concern which is taken seriously in the Western world. Normal people give donations and volunteer on a large scale within the institutions of civil society. This is the case for business corporations as well, who now have to act with a form of personal responsibility. Such a responsibility is institutionalized in the big global CSR movement, which has now been integrated in the UN Global Compact. Philanthropy has many dimensions; these include ethical, juridical, political, economic and cultural dimensions. In the last years, a lot has been written about philanthropy from a political, sociological, anthropological and managerial perspective. However, an essential question remains: what does philanthropy mean? In a Greek context, philanthropy is connected to a friendly act towards one’s owns close connections such as family or fellow citizens, and normally utilized to promote one’s own prestige in the city-state. In Roman context, universal humanism, humanitas, was invented. This universal perspective was also supported by Christianity. It is this universal concept of philanthropy which is the foundation for the different philanthropic traditions in Germany, England, France and USA. In each tradition is developed special features of the concept of philanthropy. The four traditions are summarized in the UN universal human rights, which has become the common normative reference for global philanthropy. In this way philanthropy has become, in a modern sense, a charitable act with the aim to promote human happiness independent of gender, class, race, etc. This is the genealogy of the modern understanding of philanthropy, which will be developed in this paper.

  10. Processes of social flourishing and their liminal collapse: elements to a genealogy of globalization.

    Science.gov (United States)

    Szakolczai, Arpad

    2016-09-01

    This article aims at exploring a long-term historical perspective on which contemporary globalization can be more meaningfully situated. A central problem with established approaches to globalization is that they are even more presentist than the literature on modernization was. Presentism not only means the ignoring of history, but also the unreflective application to history of concepts taken from the study of the modern world. In contrast, it is argued that contemporary globalization is not a unique development, but rather is a concrete case of a historical type. Taking as its point of departure the spirit, rather than the word, of Max Weber, this article extends the scope of sociological investigation into archaeological evidence. Having a genealogical design and introducing the concept of 'liminality', the article approaches the modern process of globalization through reconstructing the internal dynamics of another type of historical change called 'social flourishing'. Taking up the Weberian approach continued by Eisenstadt in his writings on 'axial age', it moves away from situations of crisis as reference point, shifting attention to periods of revival by introducing the term 'epiphany'. Through the case of early Mesopotamia, it shows how social flourishing can be transmogrified into globalizing growth, gaining a new perspective concerning the kind of 'animating spirit' that might have driven the shift from Renaissance to Reformation, the rise of modern colonialism, or contemporary globalization. More generally, it will retrieve the long-term historical background of the axial age and demonstrate the usefulness and importance of archaeological evidence for sociology. © London School of Economics and Political Science 2016.

  11. A genealogia em Foucault: uma trajetoria The genealogy in Foucault: a trajectory

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    Flavia Cristina Silveira Lemos

    2009-12-01

    Full Text Available Este artigo tem o objetivo de realizar uma trajetória da genealogia enquanto modo de escrever a história como pergunta/problema, de acordo com Michel Foucault, rompendo com uma história contínua, linear, teleológica, que buscava origens e semelhanças entre os objetos e as tentativas de estabelecer relações causais entre os acontecimentos. Uma história das práticas discursivas, de poder e subjetivação era a empreitada proposta por Foucault. A análise da proveniência e da emergência rompia com toda uma tradição historiográfica que fazia dos eventos memória e monumentos construídos e interpretados por categorias de semelhança. Foucault questiona este modelo de fazer história, trabalhando com novos temas e problemas e operando com a multiplicidade de acontecimentos dispersos, raros, heterogêneos, em recortes de séries de enunciados em arquivos, sem busca de origens primeiras e sem fins utilitaristas a alcançar.This article aims to achieve a path of genealogy as a way to write history as question / problem, according to Michel Foucault, breaking with a continuous, linear, teleological history, which sought origins and similarities between objects and attempts to establish causal relationships between the events. A history of discursive practices, power and subjectivity was the contract proposed by Foucault. The analysis of the source and emergency broke with a whole historiographical tradition which made the events memory and monuments constructed and interpreted by categories of similarity. Foucault questions this model to make history, working with new issues and problems and working with the multiplicity of scattered, rare, heterogeneous events, in clippings of series of statements in files, without searching for early origins and without utilitarian goals to be achieved.

  12. Notas para uma genealogia da Psicologia Social Notes for a genealogy of Social Psychology

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    Rosane Neves da Silva

    2004-08-01

    Full Text Available A partir de uma "desnaturalização" do conceito de social, pretende-se situar as condições de possibilidade para a invenção da psicologia social. Utilizando uma estratégia genealógica, nosso objetivo é mostrar que, no lugar da psicologia explicar o social, é o próprio social que deve explicar o surgimento da psicologia moderna. Para tanto, é preciso deixar de considerar o social como sinônimo da noção de sociabilidade e passar a considerá-lo como algo essencialmente construído a partir de determinadas práticas humanas. Tal problematização permite entender como se produzem, no final do século XIX, as primeiras aproximações da psicologia moderna em direção ao social a partir das questões relacionadas ao fenômeno das multidões.The "denaturalization" of the concept "social" allow us to situate the conditions to the invention of social psychology. Using the genealogy strategy, our goal is to show that it is not psychology that explains the "social" but it is the "social" itself that explains the emergence of modern psychology. In order to attain our goal it is necessary to abandon the use of social as a synonym of sociability and to consider the "social" as a product essentially constructed by determinate human practices. This strategy allows us to understand how, at the end of the XIX century, modern psychology's firsts theoretical approaches towards the "social" were produced from matters related to the phenomena of the masses.

  13. Moorean tree snail survival revisited: a multi-island genealogical perspective.

    Science.gov (United States)

    Lee, Taehwan; Burch, John B; Coote, Trevor; Pearce-Kelly, Paul; Hickman, Carole; Meyer, Jean-Yves; O Foighil, Diarmaid

    2009-08-18

    The mass extirpation of the island of Moorea's endemic partulid tree snail fauna, following the deliberate introduction of the alien predator Euglandina rosea, represents one of the highest profile conservation crises of the past thirty years. All of the island's partulids were thought to be extirpated by 1987, with five species persisting in zoos, but intensive field surveys have recently detected a number of surviving wild populations. We report here a mitochondrial (mt) phylogenetic estimate of Moorean partulid wild and captive lineage survival calibrated with a reference museum collection that pre-dates the predator's introduction and that also includes a parallel dataset from the neighboring island of Tahiti. Although severe winnowing of Moorea's mt lineage diversity has occurred, seven of eight (six Partula; two Samoana) partulid tip clades remain extant. The extinct mt clade occurred predominantly in the P. suturalis species complex and it represented a major component of Moorea's endemic partulid treespace. Extant Moorean mt clades exhibited a complex spectrum of persistence on Moorea, in captivity, and (in the form of five phylogenetically distinct sister lineages) on Tahiti. Most notably, three Partula taxa, bearing two multi-island mt lineages, have survived decades of E. rosea predation on Moorea (P. taeniata) and in the valleys of Tahiti (P. hyalina and P. clara). Their differential persistence was correlated with intrinsic attributes, such as taxonomy and mt lineages, rather than with their respective within-island distribution patterns. Conservation efforts directed toward Moorean and Tahitian partulids have typically operated within a single island frame of reference, but our discovery of robust genealogical ties among survivors on both islands implies that a multi-island perspective is required. Understanding what genetic and/or ecological factors have enabled Partula taeniata, P. hyalina and P. clara to differentially survive long-term direct

  14. Moorean tree snail survival revisited: a multi-island genealogical perspective

    Directory of Open Access Journals (Sweden)

    Meyer Jean-Yves

    2009-08-01

    Full Text Available Abstract Background The mass extirpation of the island of Moorea's endemic partulid tree snail fauna, following the deliberate introduction of the alien predator Euglandina rosea, represents one of the highest profile conservation crises of the past thirty years. All of the island's partulids were thought to be extirpated by 1987, with five species persisting in zoos, but intensive field surveys have recently detected a number of surviving wild populations. We report here a mitochondrial (mt phylogenetic estimate of Moorean partulid wild and captive lineage survival calibrated with a reference museum collection that pre-dates the predator's introduction and that also includes a parallel dataset from the neighboring island of Tahiti. Results Although severe winnowing of Moorea's mt lineage diversity has occurred, seven of eight (six Partula; two Samoana partulid tip clades remain extant. The extinct mt clade occurred predominantly in the P. suturalis species complex and it represented a major component of Moorea's endemic partulid treespace. Extant Moorean mt clades exhibited a complex spectrum of persistence on Moorea, in captivity, and (in the form of five phylogenetically distinct sister lineages on Tahiti. Most notably, three Partula taxa, bearing two multi-island mt lineages, have survived decades of E. rosea predation on Moorea (P. taeniata and in the valleys of Tahiti (P. hyalina and P. clara. Their differential persistence was correlated with intrinsic attributes, such as taxonomy and mt lineages, rather than with their respective within-island distribution patterns. Conclusion Conservation efforts directed toward Moorean and Tahitian partulids have typically operated within a single island frame of reference, but our discovery of robust genealogical ties among survivors on both islands implies that a multi-island perspective is required. Understanding what genetic and/or ecological factors have enabled Partula taeniata, P. hyalina and P

  15. Feferman on foundations logic, mathematics, philosophy

    CERN Document Server

    Sieg, Wilfried

    2017-01-01

    This volume honours the life and work of Solomon Feferman, one of the most prominent mathematical logicians of the latter half of the 20th century. In the collection of essays presented here, researchers examine Feferman’s work on mathematical as well as specific methodological and philosophical issues that tie into mathematics. Feferman’s work was largely based in mathematical logic (namely model theory, set theory, proof theory and computability theory), but also branched out into methodological and philosophical issues, making it well known beyond the borders of the mathematics community. With regard to methodological issues, Feferman supported concrete projects. On the one hand, these projects calibrate the proof theoretic strength of subsystems of analysis and set theory and provide ways of overcoming the limitations imposed by Gödel’s incompleteness theorems through appropriate conceptual expansions. On the other, they seek to identify novel axiomatic foundations for mathematical practice, truth ...

  16. How Ending Impunity for Conflict-Related Sexual Violence Overwhelmed the UN Women, Peace, and Security Agenda: A Discursive Genealogy.

    Science.gov (United States)

    Reilly, Niamh

    2018-05-01

    The recent unprecedented focus on ending impunity for conflict-related sexual violence (CRSV) is positive in many respects. However, it has narrowed the scope of Security Council Resolution 1325 and the women, peace, and security (WPS) agenda it established in 2000. Through a critical discursive genealogy of the interrelation of two UN agendas-protection of civilians in armed conflict and women, peace, and security-the author traces how CRSV emerged as the defining issue of the latter while the transformative imperative of making women's participation central to every UN endeavor for peace and security has failed to gain traction.

  17. ACADEMIC GENEALOGIES WITH RESPECT TO NARRATIVE IN HUMAN AND SOCIAL SCIENCES AND THEIR IMPLICATION FOR PUBLIC POLICIES

    Science.gov (United States)

    Fujii, Satoshi; Hasegawa, Taiki; Nakano, Takeshi; Hatori, Tsuyoshi

    In human and society science, narrative is regarded as an important issue to understand dynamic actions of human being and society. Therefore, narrative is also expected to be important for public policies that try to improve dynamic actions of human being and society. In th is study, we review academic genealogies with respect to narratives including western philosophy, hermeneutics, historical science, historical philosophy, literary criticism, clinical psychology and sociology, narrative psychology and folklore. Then we discuss how narrative can be pragmatically applied for public policies.

  18. LIMES Large Infrastructure in Mathematics - Enhanced Services

    CERN Document Server

    Fachinformationszentrum Energie, Physik, Mathematik. Karlsruhe

    The Large Infrastructure in Mathematics - Enhanced Services (LIMES) Project is a RTD project within the Fifth (EC) Framework Programme - Horizontal Programme "Improving human research potential and the socio-economic knowledge base", Access to Resear The objective of this project is to upgrade the existing database Zentralblatt-MATH into a European based world class database for mathematics (pure and applied) by a process of technical improvement and wide Europeanisation, improving the present distribuited system. The goal is to make Zentralblatt MATH a world reference database, offering full coverage of the mathematics literature worldwide ncluding bibliographic data, peer reviews and/or abstracts, indexing, classification and search,

  19. Teaching Mathematical Modeling in Mathematics Education

    Science.gov (United States)

    Saxena, Ritu; Shrivastava, Keerty; Bhardwaj, Ramakant

    2016-01-01

    Mathematics is not only a subject but it is also a language consisting of many different symbols and relations. Taught as a compulsory subject up the 10th class, students are then able to choose whether or not to study mathematics as a main subject. The present paper discusses mathematical modeling in mathematics education. The article provides…

  20. Doing Mathematics with Purpose: Mathematical Text Types

    Science.gov (United States)

    Dostal, Hannah M.; Robinson, Richard

    2018-01-01

    Mathematical literacy includes learning to read and write different types of mathematical texts as part of purposeful mathematical meaning making. Thus in this article, we describe how learning to read and write mathematical texts (proof text, algorithmic text, algebraic/symbolic text, and visual text) supports the development of students'…

  1. Teachers' Mathematics as Mathematics-at-Work

    Science.gov (United States)

    Bednarz, Nadine; Proulx, Jérôme

    2017-01-01

    Through recognising mathematics teachers as professionals who use mathematics in their workplace, this article traces a parallel between the mathematics enacted by teachers in their practice and the mathematics used in workplaces found in studies of professionals (e.g. nurses, engineers, bankers). This parallel is developed through the five…

  2. Applied Computational Mathematics in Social Sciences

    CERN Document Server

    Damaceanu, Romulus-Catalin

    2010-01-01

    Applied Computational Mathematics in Social Sciences adopts a modern scientific approach that combines knowledge from mathematical modeling with various aspects of social science. Special algorithms can be created to simulate an artificial society and a detailed analysis can subsequently be used to project social realities. This Ebook specifically deals with computations using the NetLogo platform, and is intended for researchers interested in advanced human geography and mathematical modeling studies.

  3. Mathematical intuitionism

    CERN Document Server

    Dragalin, A G

    1988-01-01

    This monograph is intended to present the most important methods of proof theory in intuitionistic logic, assuming the reader to have mastered an introductory course in mathematical logic. The book starts with purely syntactical methods based on Gentzen's cut-elimination theorem, followed by intuitionistic arithmetic where Kleene's realizability method plays a central role. The author then studies algebraic models and completeness theorems for them. After giving a survey on the principles of intuitionistic analysis, the last part of the book presents the cut-elimination theorem in intuitionistic simple theory of types with an extensionality rule.

  4. Meeting in mathematics

    DEFF Research Database (Denmark)

    Mogensen, Arne; Georgiev, Vladimir; Ulovec, Andreas

    To encourage many more young people to appreciate the real nature and spirit of mathematics and possibly to be enrolled in mathematics study it is important to involve them in doing mathematics (not just learning about mathematics). This goal could be achieved if mathematics teachers are prepared...... to identify and work with mathematically gifted students (without loosing the rest). The book offers chapters on gifted students, mathematical competences and other issues....

  5. Connecting Mathematics Learning through Spatial Reasoning

    Science.gov (United States)

    Mulligan, Joanne; Woolcott, Geoffrey; Mitchelmore, Michael; Davis, Brent

    2018-01-01

    Spatial reasoning, an emerging transdisciplinary area of interest to mathematics education research, is proving integral to all human learning. It is particularly critical to science, technology, engineering and mathematics (STEM) fields. This project will create an innovative knowledge framework based on spatial reasoning that identifies new…

  6. Molecular and genealogical evidence for a founder effect in Fanconi anemia families of the Afrikaner population of South Africa

    Science.gov (United States)

    Tipping, A. J.; Pearson, T.; Morgan, N. V.; Gibson, R. A.; Kuyt, L. P.; Havenga, C.; Gluckman, E.; Joenje, H.; de Ravel, T.; Jansen, S.; Mathew, C. G.

    2001-01-01

    Fanconi anemia (FA) is a rare, genetically heterogeneous autosomal recessive disorder associated with progressive aplastic anemia, congenital abnormalities, and cancer. FA has a very high incidence in the Afrikaner population of South Africa, possibly due to a founder effect. Previously we observed allelic association between polymorphic markers flanking the FA group A gene (FANCA) and disease chromosomes in Afrikaners. We genotyped 26 FA families with microsatellite and single nucleotide polymorphic markers and detected five FANCA haplotypes. Mutation scanning of the FANCA gene revealed association of these haplotypes with four different mutations. The most common was an intragenic deletion of exons 12–31, accounting for 60% of FA chromosomes in 46 unrelated Afrikaner FA patients, while two other mutations accounted for an additional 20%. Screening for these mutations in the European populations ancestral to the Afrikaners detected one patient from the Western Ruhr region of Germany who was heterozygous for the major deletion. The mutation was associated with the same unique FANCA haplotype as in Afrikaner patients. Genealogical investigation of 12 Afrikaner families with FA revealed that all were descended from a French Huguenot couple who arrived at the Cape on June 5, 1688, whereas mutation analysis showed that the carriers of the major mutation were descendants of this same couple. The molecular and genealogical evidence is consistent with transmission of the major mutation to Western Germany and the Cape near the end of the 17th century, confirming the existence of a founder effect for FA in South Africa. PMID:11344308

  7. Genealogy-based methods for inference of historical recombination and gene flow and their application in Saccharomyces cerevisiae.

    Science.gov (United States)

    Jenkins, Paul A; Song, Yun S; Brem, Rachel B

    2012-01-01

    Genetic exchange between isolated populations, or introgression between species, serves as a key source of novel genetic material on which natural selection can act. While detecting historical gene flow from DNA sequence data is of much interest, many existing methods can be limited by requirements for deep population genomic sampling. In this paper, we develop a scalable genealogy-based method to detect candidate signatures of gene flow into a given population when the source of the alleles is unknown. Our method does not require sequenced samples from the source population, provided that the alleles have not reached fixation in the sampled recipient population. The method utilizes recent advances in algorithms for the efficient reconstruction of ancestral recombination graphs, which encode genealogical histories of DNA sequence data at each site, and is capable of detecting the signatures of gene flow whose footprints are of length up to single genes. Further, we employ a theoretical framework based on coalescent theory to test for statistical significance of certain recombination patterns consistent with gene flow from divergent sources. Implementing these methods for application to whole-genome sequences of environmental yeast isolates, we illustrate the power of our approach to highlight loci with unusual recombination histories. By developing innovative theory and methods to analyze signatures of gene flow from population sequence data, our work establishes a foundation for the continued study of introgression and its evolutionary relevance.

  8. Berber genealogy and the politics of prehistoric archaeology and craniology in French Algeria (1860s-1880s).

    Science.gov (United States)

    Effros, Bonnie

    2017-03-01

    Following the conquest of Algiers and its surrounding territory by the French army in 1830, officers noted an abundance of standing stones in this region of North Africa. Although they attracted considerably less attention among their cohort than more familiar Roman monuments such as triumphal arches and bridges, these prehistoric remains were similar to formations found in Brittany and other parts of France. The first effort to document these remains occurred in 1863, when Laurent-Charles Féraud, a French army interpreter, recorded thousands of dolmens and stone formations south-west of Constantine. Alleging that these constructions were Gallic, Féraud hypothesized the close affinity of the French, who claimed descent from the ancient Gauls, with the early inhabitants of North Africa. After Féraud's claims met with scepticism among many prehistorians, French scholars argued that these remains were constructed by the ancestors of the Berbers (Kabyles in contemporary parlance), whom they hypothesized had been dominated by a blond race of European origin. Using craniometric statistics of human remains found in the vicinity of the standing stones to propose a genealogy of the Kabyles, French administrators in Algeria thereafter suggested that their mixed origins allowed them to adapt more easily than the Arab population to French colonial governance. This case study at the intersection of prehistoric archaeology, ancient history and craniology exposes how genealogical (and racial) classification made signal contributions to French colonial ideology and policy between the 1860s and 1880s.

  9. Project Narrative

    Energy Technology Data Exchange (ETDEWEB)

    Driscoll, Mary C. [St. Bonaventure University, St Bonaventure, NY(United States)

    2012-07-12

    The Project Narrative describes how the funds from the DOE grant were used to purchase equipment for the biology, chemistry, physics and mathematics departments. The Narrative also describes how the equipment is being used. There is also a list of the positive outcomes as a result of having the equipment that was purchased with the DOE grant.

  10. Mathematics, the Computer, and the Impact on Mathematics Education.

    Science.gov (United States)

    Tooke, D. James

    2001-01-01

    Discusses the connection between mathematics and the computer; mathematics curriculum; mathematics instruction, including teachers learning to use computers; and the impact of the computer on learning mathematics. (LRW)

  11. [Chromosome as a chronicler: Genetic dating, historical events, and DNA-genealogic temptation].

    Science.gov (United States)

    Balanovsky, O P; Zaporozhchenko, V V

    2016-07-01

    history events leave distinct traces in the history of haplogroups only under certain demographic conditions. Direct identification of national history with the history of its occurring haplogroups is inappropriate and is avoided in population genetic studies, although because of its simplicity and attractiveness it is a constant temptation for researchers. An example of DNA genealogy, an amateur field that went beyond the borders of even citizen science and is consistently using the principle of equating haplogroup with lineage and population, which leads to absurd results (e.g., Eurasia as an origin of humankind), can serve as a warning against a simplified approach for interpretation of genetic dating results.

  12. American Uncles and Aunts: Generations, Genealogies, Bildungs in 1930s Novels

    Directory of Open Access Journals (Sweden)

    Cinzia Scarpino

    2013-05-01

    Full Text Available The essay focuses on the characters of uncles and aunts as they emerge in four novels written in the 1930s by two second-generation immigrant novelists and two American women writers: Henry Roth’s Call It Sleep (1934, Pietro di Donato’s Christ in Concrete (1939, Josephine Herbst’s Pity Is Not Enough (1933, and Catherine Anne Porter’s Old Mortality (1937. In their portrayal of a growing-up young male and female protagonist sharing many autobiographical traits with the authors, these works can be considered late versions of American Bildungsromans in which the presence of uncles and aunts seem to function as an alternative – or complementary – model to the parental one and to play a pivotal role in the (possible or impossible Bildungs of nephews and nieces.    Starting with a brief survey on the rediscovery and mapping of anthropological, ethnological and folkloric genealogies (including recent immigrants’ stories and their unprecedented entrance into  official national narratives during the Great Depression, the essay attempts to show how the figures of uncles and aunts play strategic roles in both the working-class and immigrant Bildungs (or “anti-Bildungs represented in Call It Sleep and Christ in Concrete, and the female middle-class Bildungs (or “awakenings” evoked in Pity Is Not Enough and Old Mortality. Whereas Roth and di Donato simultaneously mark the coming of age and the modern watershed of the hyphenated literary tradition of Jewish-American and Italian-American novels by creating impossible narratives of “development” built around ghetto children, Herbst and Porters’ works seem to stem from the genre of the sentimental novel and the novel of “awakening” and to twist them into a modernist version of possible female Bildungs.

  13. What's in a Name: Elective Genealogy in Schwarz-Bart's Early Novels

    Directory of Open Access Journals (Sweden)

    Clarisse Zimra

    1993-01-01

    Full Text Available This essay considers the question of the textual inscription of history in Solitude, Plat de porc and Télumée , by focusing on a narrative feature present in all three: the naming scene, wherein characters claim elective descent from a real historical figure, the pregnant mulatto woman, Solitude, captured and executed after the battle of Matouba in 1802 on Guadeloupe. Every Schwarz-Bart novel to date contains at least one scene, often several, staging this retelling of specifically Guadeloupean origins: the resistance to the reinstatement of slavery, and the ensuing tragedy on Matouba. In Un Plat de porc aux bananes vertes (1967, the child Mariotte, refusing the white values of her household, claims Solitude as model and ancestor. Later in Plule et vent sur Télumée Miracle (1972, Télumée regains her rightful place, through the connecting links of the oral chain, within a whole genealogy that is both biological and elective. Schwarz-Bart's corpus should be read as a gradual expansion of storytelling as a naming moment that makes sense of history in the retelling of it. This dramatized primal scene serves as matrix for the fictional discourse: it is the moment of revelation that simultaneously structures the narrator's individual consciousness and the narrative unfolding of a once-repressed collective memory. In the text's matricial moment, the daughter refuses the name—and the law—of the patriarchal Father (upending Lacan's "nom/non du père," so to speak to reclaim the name, and, in Solitude's own pregnancy, the body of the Mother. It is a political act in that its coming into existence demands a radical shift in power relations as well as in consciousness. For a Schwarz-Bart heroine, this represents the first necessary step towards grounding herself in a tradition and an oral chain of her own choosing, with Negritude as its implied counter-text. What is remarkable is that Schwarz-Bart eventually rejects the binary, essentialist trap

  14. Biological chemistry as a foundation of DNA genealogy: the emergence of "molecular history".

    Science.gov (United States)

    Klyosov, A A

    2011-05-01

    This paper presents the basis of DNA genealogy, a new field of science, which is currently emerging as an unusual blend of biochemistry, history, linguistics, and chemical kinetics. The methodology of the new approach is comprised of chemical (biological) kinetics applied to a pattern of mutations in non-recombinant fragments of DNA (Y chromosome and mtDNA, the latter not being considered in this overview). The goal of the analysis is to translate DNA mutation patterns into time spans to the most recent common ancestors of a given population or tribe and to the dating of ancient migration routes. To illustrate this approach, time spans to the common ancestors are calculated for ethnic Russians, that is Eastern Slavs (R1a1 tribe), Western Slavs (I1 and I2 tribes), and Northern (or Uralic) Slavs (N1c tribe), which were found to live around 4600 years before present (R1a1), 3650 ybp (I1), 3000 and 10,500 ybp (I2, two principal DNA lineages), and 3525 ybp (N1c) (confidence intervals are given in the main text). The data were compared with the respective dates for the nearest common ancestor of the R1a1 "Indo-European" population in India, who lived 4050 years before present, whose descendants represent the majority of the upper castes in India today (up to 72%). Furthermore, it was found that the haplotypes of ethnic Russians of the R1a1 haplogroup (up to 62% of the population in the Russian Federation) and those of the R1a1 Indians (more than 100 million today) are practically identical to each other, up to 67-marker haplotypes. This essentially solves a 200-year-old mystery of who were the Aryans who arrived in India around 3500 years before the present. Haplotypes and time spans to the ancient common ancestors were also compared for the ethnic Russians of haplogroups I1 and I2, on one hand, and the respective I1 and I2 populations in Eastern and Western Europe and Scandinavia, on the other. It is suggested that the approach described in this overview lays the

  15. Authenticity of Mathematical Modeling

    Science.gov (United States)

    Tran, Dung; Dougherty, Barbara J.

    2014-01-01

    Some students leave high school never quite sure of the relevancy of the mathematics they have learned. They fail to see links between school mathematics and the mathematics of everyday life that requires thoughtful decision making and often complex problem solving. Is it possible to bridge the gap between school mathematics and the mathematics in…

  16. Crafting by concepts fiber arts and mathematics

    CERN Document Server

    Belcastro, Sarah-Marie

    2016-01-01

    From the editors of the popular Making Mathematics with Needlework, this book presents projects that highlight the relationship between types of needlework and mathematics. Chapters start with accessible overviews presenting the interplay between mathematical concepts and craft expressions. Following sections explain the mathematics in more detail, and provide suggestions for classroom activities. Each chapter ends with specific crafting instructions. Types of needlework included are knitting, crochet, needlepoint, cross-stitch, quilting, temari balls, beading, tatting, and string art. Instructions are written as ordinary patterns, so the formatting and language will be familiar to crafters.

  17. Genealogy Composition in Response to Trauma: Gender and Memory in 1 Chronicles 1–9 and the Documentary Film "My Life Part 2”

    NARCIS (Netherlands)

    Löwisch, I.S.

    2013-01-01

    The thesis asks which characteristics of the biblical genealogies turn them into a form of cultural memory that has the potential to make sense of traumatic and fractured pasts, and to integrate them into present conceptions of identity and agency. Specifically, it asks which role gender plays in

  18. Teaching mathematics using excel

    OpenAIRE

    Bonello, Mary Rose; Camilleri, Silvana

    2004-01-01

    'Technology is essential in teaching and learning mathematics; it influences the mathematics that is taught and enhances students' learning.' (Principles and Standards for School Mathematics-NCTM April 2000)

  19. Figures of thought mathematics and mathematical texts

    CERN Document Server

    Reed, David

    2003-01-01

    Examines the ways in which mathematical works can be read as texts, examines their textual strategiesand demonstrates that such readings provide a rich source of philosophical debate regarding mathematics.

  20. Transnational class formation and concepts of control: notes towards a genealogy of the Amsterdam Project in International Political Economy

    NARCIS (Netherlands)

    Overbeek, H.W.

    2004-01-01

    International political economy (IPE) has been enriched, since the late 1970s, by flourishing numbers of critical approaches. The contributions during the 1980s and 1990s to this literature by some members of the Department of International Relations at the University of Amsterdam occupy a distinct

  1. Science and mathematics teachers of the future

    DEFF Research Database (Denmark)

    Michelsen, Claus; Nielsen, Jan Alexis; Petersen, Morten Rask

    2008-01-01

    This paper presents the project Science and Mathematics Teachers of the Future. The aim of the project is to develop and implement a graduate level equivalent degree program in mathematics and science instruction for in-service teachers of lower secondary education. This aim is achieved...... in the programme through involving the teachers in design, implementation and evaluation of innovative instructional sequences, which deals with a wide range of aspects of mathematics and science, e.g. modern science and the importance of science in society. In the program contemporary science and mathematics...... education research serves as a basis for the design and development of warranted practices with which the teachers may experiment in their classroom. We will focus on the outcomes of offering a program which is intimately tied to (i) contemporary science and mathematics education research, (ii) modern...

  2. The many faces of the mathematical modeling cycle

    NARCIS (Netherlands)

    Perrenet, J.C.; Zwaneveld, B.

    2012-01-01

    In literature about mathematical modeling a diversity can be seen in ways of presenting the modeling cycle. Every year, students in the Bachelor’s program Applied Mathematics of the Eindhoven University of Technology, after having completed a series of mathematical modeling projects, have been

  3. The Role of Expository Writing in Mathematical Problem Solving

    Science.gov (United States)

    Craig, Tracy S.

    2016-01-01

    Mathematical problem-solving is notoriously difficult to teach in a standard university mathematics classroom. The project on which this article reports aimed to investigate the effect of the writing of explanatory strategies in the context of mathematical problem solving on problem-solving behaviour. This article serves to describe the…

  4. Development of a Multidisciplinary Middle School Mathematics Infusion Model

    Science.gov (United States)

    Russo, Maria; Hecht, Deborah; Burghardt, M. David; Hacker, Michael; Saxman, Laura

    2011-01-01

    The National Science Foundation (NSF) funded project "Mathematics, Science, and Technology Partnership" (MSTP) developed a multidisciplinary instructional model for connecting mathematics to science, technology and engineering content areas at the middle school level. Specifically, the model infused mathematics into middle school curriculum…

  5. Identifying Avenues for Curriculum Development in Undergraduate Mathematics.

    Science.gov (United States)

    Frid, Sandra; And Others

    The study reported in this paper represents the first stage of a five-year project aimed at improving the quality of teaching and learning in undergraduate mathematics courses for science and engineering students. Students were surveyed about their confidence in their mathematics background, their confidence with current mathematics topics, and…

  6. Modelling as a foundation for academic forming in mathematics education

    NARCIS (Netherlands)

    Perrenet, J.C.; Morsche, ter H.G.

    2004-01-01

    The Bachelor curriculum of Applied Mathematics in Eindhoven includes a series of modelling projects where pairs of students solve mathematical problems posed in non-mathematical language. Communication skills training is integrated with this track. Recently a new course has been added. The students

  7. Mathematical Modelling Approach in Mathematics Education

    Science.gov (United States)

    Arseven, Ayla

    2015-01-01

    The topic of models and modeling has come to be important for science and mathematics education in recent years. The topic of "Modeling" topic is especially important for examinations such as PISA which is conducted at an international level and measures a student's success in mathematics. Mathematical modeling can be defined as using…

  8. Discrete Mathematics and the Secondary Mathematics Curriculum.

    Science.gov (United States)

    Dossey, John

    Discrete mathematics, the mathematics of decision making for finite settings, is a topic of great interest in mathematics education at all levels. Attention is being focused on resolving the diversity of opinion concerning the exact nature of the subject, what content the curriculum should contain, who should study that material, and how that…

  9. Introducing philosophy of mathematics

    CERN Document Server

    Friend, Michele

    2014-01-01

    What is mathematics about? Does the subject-matter of mathematics exist independently of the mind or are they mental constructions? How do we know mathematics? Is mathematical knowledge logical knowledge? And how is mathematics applied to the material world? In this introduction to the philosophy of mathematics, Michele Friend examines these and other ontological and epistemological problems raised by the content and practice of mathematics. Aimed at a readership with limited proficiency in mathematics but with some experience of formal logic it seeks to strike a balance between conceptual acc

  10. Interculturalidade: por uma genealogia da discriminação Interculturality: for a genealogy of discrimination

    Directory of Open Access Journals (Sweden)

    Maria Beatriz Rodrigues

    2007-12-01

    its toll of exclusion and discrimination to be paid by the newcomers. This article focuses on diversity and multicultural cohabitation and tries to grasp, genealogically, the meanings and effects of discrimination today. It uses Foucault's interviews and texts between 1978-79 about his direct involvement with Khomeini's Iranian Revolution. This material, together with many contemporary examples extracted from the author's subjectivity as an emigrant in Europe, serves as an inaugural vehicle to discuss ethnical, cultural and religious intolerance, in the background of the so called "clash of civilizations".

  11. Mathematics related anxiety: Mathematics bogeyman or not?

    Directory of Open Access Journals (Sweden)

    Videnović Marina

    2011-01-01

    Full Text Available Data of the PISA 2003 survey indicate high levels of mathematics anxiety of students in Serbia. More than half of our students worry whether they will have difficulties in mathematics class or whether they will earn poor marks. Aims of this study therefore are: examining relationship between math anxiety and achievement at mathematics literacy scale; establishing possible predictors of math anxiety and identification of students' groups in relations to their relationship towards mathematics as a subject. Mathematics anxiety is statistically negatively correlated with school achievement and achievement at mathematics literacy scale. Socio-demographic factors, motivational and cognitive aspects related to learning mathematics, perception of school and classroom climate explain 40% variance of mathematics anxiety. Based on students' relationship towards mathematics they cam be divided into three groups; while dimensions that apart them are uninterested-interested in mathematics and presence-absence of anxiety. The group displaying anxiety scores lowest among the three. Applying qualitative analysis students' and teachers' attitudes on specific issues related to teaching and learning mathematics was examined.

  12. [Ethics and medicine in Michel Foucault: the humanistic dimension of medicine derived from a genealogy of morality].

    Science.gov (United States)

    Gomes, Benjamim

    2005-01-01

    The article presents the results of a doctoral dissertation defended at the Universidad de Salamanca, based on Foucault's final decade of writings. If Foucault's goal in writing The History of Sexuality was to fashion a genealogy of ethics, my goal in analyzing this book, along with his other writings, is to demonstrate his last contribution to the history of medicine. He moves from a conception of power over others towards a conception of power over oneself, an exclusive terrain of ancient Greek morality. As a thinker who tries to understand today's problems by going to their roots, Foucault develops less a history than a philosophy of history. Considered an anti-humanist, he leaves us with a portrait of a wholly ethical-humanistic medicine.

  13. Clinical-genealogical and cytogenetic peculiarities of children born to fathers-liquidators of the Chernobyl accident

    International Nuclear Information System (INIS)

    Korenev, N.M.; Kovaleva, V.I.; Bagatskaya, N.V.

    2004-01-01

    Clinical-genealogical and cytogenetic peculiarities were studied in children, born to fathers who took part in liquidation the Chernobyl nuclear accident consequences for 1999-2002 at the Institute of Children and Adolescents' Health Care of AMS of Ukraine. Dynamic study (from 3 to 3.5 years) of cytogenetic influence in such children showed a certain decrease in chromosomal disorders incidence (from 1.26% to 0.53%, p<0.001). Together with decrease in the chromosomal aberrations incidence in children, it was established an increase in numerical chromosomal disorders (polyploidy). The rate of polyploidy in the group under investigation was up to 2.01% that exceeded the data of the preliminary examination (0.09%, p<0.001)

  14. Hybrid-Lambda: simulation of multiple merger and Kingman gene genealogies in species networks and species trees.

    Science.gov (United States)

    Zhu, Sha; Degnan, James H; Goldstien, Sharyn J; Eldon, Bjarki

    2015-09-15

    There has been increasing interest in coalescent models which admit multiple mergers of ancestral lineages; and to model hybridization and coalescence simultaneously. Hybrid-Lambda is a software package that simulates gene genealogies under multiple merger and Kingman's coalescent processes within species networks or species trees. Hybrid-Lambda allows different coalescent processes to be specified for different populations, and allows for time to be converted between generations and coalescent units, by specifying a population size for each population. In addition, Hybrid-Lambda can generate simulated datasets, assuming the infinitely many sites mutation model, and compute the F ST statistic. As an illustration, we apply Hybrid-Lambda to infer the time of subdivision of certain marine invertebrates under different coalescent processes. Hybrid-Lambda makes it possible to investigate biogeographic concordance among high fecundity species exhibiting skewed offspring distribution.

  15. Madness, Monstrosity and Writing: Towards a Genealogical Analysis in 'El obsceno pájaro de la noche'

    Directory of Open Access Journals (Sweden)

    Santiago Juan-Navarro

    2016-06-01

    Full Text Available Drawing on Foucault’s concept of “genealogy,” this article explores madness, monstrosity and writing in José Donoso´s The Obscene Bird of Night(1970. Like Foucault, Donoso is interested in studying the body as “the inscribed surface of events,” the locus of a dissociated self (adopting the illusion of a substantial unity, and a mass in perpetual disintegration. Like Donoso, Foucault assaults enlightened reason and the principle of reality in order to subvert and transgress the instrumental rationality and normalcy of bourgeois culture. This essay analyzes Donoso’s novel in light of these concepts in order to open a new path for understanding one of the most obscure texts in modern Latin American fiction.

  16. Experiences of Student Mathematics-Teachers in Computer-Based Mathematics Learning Environment

    Science.gov (United States)

    Karatas, Ilhan

    2011-01-01

    Computer technology in mathematics education enabled the students find many opportunities for investigating mathematical relationships, hypothesizing, and making generalizations. These opportunities were provided to pre-service teachers through a faculty course. At the end of the course, the teachers were assigned project tasks involving…

  17. Genealogical Analysis of the North-American Spring Wheat Varieties with Different Resistance to Pre-harvest Sprouting

    Directory of Open Access Journals (Sweden)

    Martynov Sergey

    2016-12-01

    Full Text Available A comparative analysis of genetic diversity of North American spring wheat varieties differing in resistance to pre-harvest sprouting was carried out. For identification of sources of resistance the genealogical profiles of 148 red-grained and 63 white-grained North-American spring wheat varieties with full pedigrees were calculated and estimates were made of pre-harvest sprouting. The cluster structure of the populations of red-grained and white-grained varieties was estimated. Analysis of variance revealed significant differences between the average contributions of landraces in the groups of resistant and susceptible varieties. Distribution of the putative sources of resistance in the clusters indicated that varieties having different genetic basis may have different sources of resistance. For red-grained varieties the genetic sources of resistance to pre-harvest sprouting are landraces Crimean, Hard Red Calcutta, and Iumillo, or Button, Kenya 9M-1A-3, and Kenya-U, or Red Egyptian and Kenya BF4-3B-10V1. Tracking of pedigrees showed these landraces contributed to the pedigrees, respectively, via Thatcher, Kenya-Farmer, and Kenya-58, which were likely donors of resistance for red-grained varieties. For white-grained varieties the sources of resistance were landraces Crimean, Hard Red Calcutta, Ostka Galicyjska, Iumillo, Akakomugi, Turco, Hybrid English, Rough Chaff White and Red King, and putative donors of resistance — Thatcher, RL2265, and Frontana. The genealogical profile of accession RL4137, the most important donor of resistance to pre-harvest sprouting in North American spring wheat breeding programmes, contains almost all identified sources of resistance.

  18. Local genealogies in a linear mixed model for genome-wide association mapping in complex pedigreed populations.

    Directory of Open Access Journals (Sweden)

    Goutam Sahana

    Full Text Available INTRODUCTION: The state-of-the-art for dealing with multiple levels of relationship among the samples in genome-wide association studies (GWAS is unified mixed model analysis (MMA. This approach is very flexible, can be applied to both family-based and population-based samples, and can be extended to incorporate other effects in a straightforward and rigorous fashion. Here, we present a complementary approach, called 'GENMIX (genealogy based mixed model' which combines advantages from two powerful GWAS methods: genealogy-based haplotype grouping and MMA. SUBJECTS AND METHODS: We validated GENMIX using genotyping data of Danish Jersey cattle and simulated phenotype and compared to the MMA. We simulated scenarios for three levels of heritability (0.21, 0.34, and 0.64, seven levels of MAF (0.05, 0.10, 0.15, 0.20, 0.25, 0.35, and 0.45 and five levels of QTL effect (0.1, 0.2, 0.5, 0.7 and 1.0 in phenotypic standard deviation unit. Each of these 105 possible combinations (3 h(2 x 7 MAF x 5 effects of scenarios was replicated 25 times. RESULTS: GENMIX provides a better ranking of markers close to the causative locus' location. GENMIX outperformed MMA when the QTL effect was small and the MAF at the QTL was low. In scenarios where MAF was high or the QTL affecting the trait had a large effect both GENMIX and MMA performed similarly. CONCLUSION: In discovery studies, where high-ranking markers are identified and later examined in validation studies, we therefore expect GENMIX to enrich candidates brought to follow-up studies with true positives over false positives more than the MMA would.

  19. Making Sense of Mathematics

    Science.gov (United States)

    Umphrey, Jan

    2011-01-01

    The National Council of Teachers of Mathematics (NCTM) is a voice and advocate for mathematics educators, working to ensure that all students receive equitable mathematics learning of the highest quality. To help teachers and school leaders understand the Common Core State Standards for Mathematics (CCSSM) and to point out how the CCSSM can be…

  20. Mathematics through Millenia

    DEFF Research Database (Denmark)

    Hansen, Vagn Lundsgaard

    2005-01-01

    A brief tour through the history of mathematics from the very beginnings to modern times, with an emphasis on the main contributions and important periods of mathematics in various civilizations.......A brief tour through the history of mathematics from the very beginnings to modern times, with an emphasis on the main contributions and important periods of mathematics in various civilizations....

  1. Mathematics through millenia

    DEFF Research Database (Denmark)

    Hansen, Vagn Lundsgaard

    A brief tour through the history of mathematics from the very beginnings to modern times, with an emphasis on the main contributions and important periods of mathematics in various civilizations.......A brief tour through the history of mathematics from the very beginnings to modern times, with an emphasis on the main contributions and important periods of mathematics in various civilizations....

  2. Using Mathematics, Mathematical Applications, Mathematical Modelling, and Mathematical Literacy: A Theoretical Study

    Science.gov (United States)

    Mumcu, Hayal Yavuz

    2016-01-01

    The purpose of this theoretical study is to explore the relationships between the concepts of using mathematics in the daily life, mathematical applications, mathematical modelling, and mathematical literacy. As these concepts are generally taken as independent concepts in the related literature, they are confused with each other and it becomes…

  3. Proceedings – Mathematical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Proceedings – Mathematical Sciences; Volume 127; Issue 1. Projections of Veronese surface and morphisms from projective plane to Grassmannian ... M2, Universite Lille 1, F-59655 Villeneuve d'Ascq Cedex, France; Institute of Mathematical Sciences, CIT Campus, Taramani, Chennai 600 113, India ...

  4. Mathematics Crises in our Schools: Causes and Remedies | Osafo ...

    African Journals Online (AJOL)

    The presentation will discuss findings from an NGO project - 'Improving Teaching and Learning of Mathematics in Basic Schools'. The project has taken the presenter to several schools across the country, observing and supporting teachers in their implementation of the curriculum. (Mathematics Connection: 2001 2: 4-6) ...

  5. A mathematical model of embodied consciousness

    NARCIS (Netherlands)

    Rudrauf, D.; Bennequin, D.; Granic, I.; Landini, G.; Friston, K.; Williford, K.

    2017-01-01

    We introduce a mathematical model of embodied consciousness, the Projective Consciousness Model (PCM), which is based on the hypothesis that the spatial field of consciousness (FoC) is structured by a projective geometry and under the control of a process of active inference. The FoC in the PCM

  6. Flipping Undergraduate Finite Mathematics: Findings and Implications

    Science.gov (United States)

    Guerrero, Shannon; Beal, Melissa; Lamb, Chris; Sonderegger, Derek; Baumgartel, Drew

    2015-01-01

    This paper reports on a research project that investigated the effects of a flipped instructional approach on student attitudes and achievement in a lower division university-level Finite Mathematics course. The project employed a mixed-methods design that included content exams, an attitude survey, open-ended student responses, observations, and…

  7. Early mathematics intervention in a Danish municipality

    DEFF Research Database (Denmark)

    Lindenskov, Lena; Weng, Peter

    2013-01-01

    We describe a pilot project 2009 – 2010 about early intervention in second grade mathematics (about 8 years old) in Frederiksberg, a Danish urban municipality. We shortly describe the background of the pilot project, aims and organisation in four design cycles. We explore the pilot teachers......' feedback during the pilot process, how pilot teacher feedback was applied in material production, and the relations between the feedback and the project’s theoretical basis. The project is based on original theory (Math Holes theory), but international frameworks, like Mathematics Recovery, serve...

  8. EULER - A Real Virtual Library for Mathematics

    CERN Document Server

    Jost, Michael

    2004-01-01

    The EULER project completed its work in November 2002. It forms the last part of a very successful project in the specialized but global discipline of mathematics. After a successful RTD project had created the technology, a take-up project has effectively exploited it to the point where its future is assured through a not-for-profit consortium. EULER is a European based, world class, real virtual library for mathematics with up-to-date technological solutions, well accepted by users. In particular, EULER provides a world reference and delivery service, transparent to the end user and offering full coverage of the mathematics literature world-wide, including bibliographic data, peer reviews and/or abstracts, indexing, classification and search, transparent access to library services, co-operation with commercial information providers (publishers, bookstores). The EULER services provide a gateway to the electronic catalogues and repositories of participating institutions, while the latter retain complete respo...

  9. Coaching in Early Mathematics.

    Science.gov (United States)

    Germeroth, Carrie; Sarama, Julie

    2017-01-01

    Falling scores in math have prompted a renewed interest in math instruction at early ages. By their own admission, early childhood educators are generally underprepared and not always comfortable teaching math. Professional development (PD) in early mathematics is widely considered a main way to increase teachers' skills and efficacy (e.g., Guskey, 2000; Hyson & Woods, 2014; Munby, Russell, & Martin, 2001; Piasta, Logan, Pelatti, Capps, & Petrill, 2015; Richardson & Placier, 2001; Sarama, Clements, Wolfe, & Spitler, 2016; Sarama & DiBiase, 2004; Zaslow, 2014). However, it has been documented that stand-alone PD is not as effective in changing practice (e.g., Biancarosa & Bryk, 2011; Garet et al., 2008; Guskey, 2000; Hyson & Woods, 2014; Institute of Medicine and National Research Council, 2015; Joyce & Showers, 2002; Zaslow, 2014). Site-embedded ongoing support in the form of coaching or mentoring has been shown to be critical for successful implementation (Neuman & Cunningham, 2009; Powell, Diamond, Burchinal, & Koehler, 2010). In this chapter, we describe coaching models and abstract characteristics of effective coaching from the research. With this background, we provide an in-depth view of the coaching aspect of two large empirical studies in early mathematics. We introduce the theoretical framework from which the coaching models for these projects were developed and describe the research on which they were based. We then summarize how the planned models were instantiated and challenges to their implementation within each project. In the final section, we summarize what we have learned and described implications and challenges for the field. © 2017 Elsevier Inc. All rights reserved.

  10. Mathematics without boundaries surveys in pure mathematics

    CERN Document Server

    Pardalos, Panos

    2014-01-01

    The contributions in this volume have been written by eminent scientists from the international mathematical community and present significant advances in several theories, methods and problems of Mathematical Analysis, Discrete Mathematics, Geometry and their Applications. The chapters focus on both old and recent developments in Functional Analysis, Harmonic Analysis, Complex Analysis, Operator Theory, Combinatorics, Functional Equations, Differential Equations as well as a variety of Applications. The book also contains some review works, which could prove particularly useful for a broader audience of readers in Mathematical Sciences, and especially to graduate students looking for the  latest information.

  11. IMPROVING TEACHING MATHEMATICS USING MODERN INFORMATION TECHNOLOGIES IN FORMATION MATHEMATICAL COMPETENCE REQUIRED FUTURE SKIPPERS.

    Directory of Open Access Journals (Sweden)

    Elena Gudyreva

    2015-10-01

    Full Text Available The article is devoted to consideration of issues related to identifying the potential for teaching mathematics using network (Internet technology and the introduction of elements of distance learning into educational process of higher educational establishments of the sea profile, as well as achievement of formation of mathematical competence of students of the University generally, and of the University's Maritime profile, in particular. Based on the analysis of psychological and pedagogical literature highlights the factors that influence the increase of efficiency of independent work of students of higher educational institutions and on the formation of steady skills of self-education that ultimately leads to quality of formation of mathematical competence of a student. Specific features of teaching mathematics at the University of the sea profile. The description of the project (complex sites "KSMA. Higher mathematics navigators", who developed and used in the Kherson state Maritime Academy in the teaching of mathematics and the organization of individual techniques of distance learning, shows the simplicity and accessibility of working with complex sites, as well as the simplicity and accessibility of design "personal website", but in fact complex sites, by a teacher of any discipline of higher education. Shown, also a training process with the use of the project "KSMA. Higher mathematics navigators", analyzes the experience of teaching the course "Higher mathematics" in a higher educational institution of the marine profile with the use of a personal website, a teacher and shown positive results in students mastery of basic mathematical competencies.

  12. Opening inquiry mathematics to parents: Can they be engaged as teachers’ partners in mathematical work?

    Directory of Open Access Journals (Sweden)

    Ioannis Papadopoulos

    2017-12-01

    Full Text Available This paper presents a two-stage project designed to develop the partnership between teacher and parents. The project began with a workshop constructed to motivate parents to be interested in doing mathematics in a way that is different from the one they experienced as students and, as a result, to be eager to become involved in the co-production of didactic materials for classroom use. Parents were engaged in real, collaborative, high-level mathematical work as a first step in engaging them as partners in mathematical work with their children.  During this first stage, parents were familiarized with inquiry mathematics tasks to provide them with the foundation necessary to become partners and co-producers during the second. The findings give evidence that the learning of reform math tasks and their co-creation supported teacher and parents’ partnership and that parents were moved mathematically and personally by the experience.

  13. Las Matemáticas en el Proyecto Integrador de Ingeniería Mecánica. // The Mathematics in the Integrating Project in the teaching of Mechanical Engineering.

    Directory of Open Access Journals (Sweden)

    E. Fraga Guerra

    2004-09-01

    Full Text Available Con el desarrollo vertiginoso que tiene lugar en la ciencia y técnica, en estos tiempos, cada día aumentan de forma continualas investigaciones en estas ramas del saber y con ello los problemas en donde es necesaria la utilización de métodos demodelación matemática o de selección de modelos matemáticos adecuados para efectuar el análisis correspondiente yobtener resultados lo más racional posible. Por consiguiente, los futuros profesionales deben poseer una amplia y adecuadapreparación matemática que comprende, además de los conocimientos teóricos, una correcta interpretación de losresultados y la utilización de herramientas de cómputo tan eficaces en la actualidad.En este trabajo se expone la experiencia llevada a cabo en la enseñanza del tema Diseño y Análisis Estadístico deExperimentos, como apoyo a la solución de proyectos concretos de Ingeniería Mecánica. Esta se realiza con pocas horas dedocencia presencial, empleando métodos participativos de enseñanza y las ventajas que brindan las nuevas tecnologías de lainformática y las comunicaciones en el proceso de enseñanza - aprendizaje; lo que ha contribuido a que los estudiantesdesarrollen el hábito de utilizar el método científico de trabajo como herramienta para la solución de problemas y se lesmuestra como proceder de forma correcta en las investigacionesPalabras claves: Diseño, estadística, análisis, proyecto, simulación._____________________________________________________________________________Abstract.Due to the vertiginous development in science and technology in these days, research on these matters continuouslyincreases as well as problems where it is necessary to use methods of mathematical modelling or to select suitablemathematical models to carry out the proper analysis to get results as rational as possible. Therefore, future professionalsmust have a wide and proper mathematical preparation that will comprise not only the theory, but also the

  14. Mathematics education and the dignity of being

    Directory of Open Access Journals (Sweden)

    Paola Valero

    2012-11-01

    Full Text Available On the grounds of our work as researchers, teacher educators and teachers engaging with a socio-political approach in mathematics education in Colombia, we propose to understand democracy in terms of the possibility of constructing a social subjectivity for the dignity of being. We address the dilemma of how the historical insertion of school mathematics in relation to the Colonial project of assimilation of Latin American indigenous peoples into the episteme of the Enlightenment and Modernity is in conflict with the possibility of the promotion of a social subjectivity in mathematics classrooms. We illustrate a pedagogical possibility to move towards a mathematics education for social subjectivity with our work in reassembling the notion of geometrical space in the Colombian secondary school mathematics curriculum with notions of space from critical geography and the problem of territorialisation, and Latin American epistemology with the notion of intimate space as an important element of social subjectivity.

  15. Host specificity and genealogy of the louse Polyplax serrata on field mice, Apodemus species: a case of parasite duplication or colonisation?

    Science.gov (United States)

    Stefka, Jan; Hypsa, Václav

    2008-05-01

    The genealogy, population structure and population dynamics of the sucking louse Polyplax serrata were analysed across four host species of the genus Apodemus. An analysis of 126 sequences of cytochrome c oxidase subunit I using phylogenetic approaches and haplotype networking revealed a clear structure of European samples, forming three distinct and genetically distant clades with different host specificities. Although a clear connection was detected between the host and parasite genealogies/phylogenies, a uniform pattern of co-speciation was not found. For example, a dramatic shift in the degree of host specificity was demonstrated for two related louse lineages living in sympatry and sharing one of their host species. While one of the louse lineages frequently parasitised two different host taxa (Apodemus sylvaticus and Apodemus flavicollis), the other louse lineage was strictly specific to A. flavicollis. The estimate of divergence time between the two louse lineages indicates that they may have arisen due to parasite duplication on A. flavicollis.

  16. An Invitation to Mathematics

    CERN Document Server

    Schleicher, Dierk

    2011-01-01

    This "Invitation to Mathematics" consists of 14 contributions, many from the world's leading mathematicians, which introduce the readers to exciting aspects of current mathematical research. The contributions are as varied as the personalities of active mathematicians, but together they show mathematics as a rich and lively field of research. The contributions are written for interested students at the age of transition between high school and university who know high school mathematics and perhaps competition mathematics and who want to find out what current research mathematics is

  17. Derin Paşaoǧlu D. Genealogy of the Crimean Khans according to “Umdet al-Akhbar” by Abdulgaffar Kyrymi

    Directory of Open Access Journals (Sweden)

    Derya Derin Paşaoǧlu

    2017-03-01

    Full Text Available The article considers the genealogy of the Girayids contained in “Umdet al-Akhbar” by Abdulgaffar Kyrymi. Abdulgaffar Kyrymi was a great connoisseur of the Turkic-Tatar history. He wrote his historical work in 1747 according to the Ottoman-Turkish tradition, that is, the author gave detailed information about the history of the prophets since Adam, the history of Islam, Islamic Turkic states, the State of Seljuks and the Ottoman State, Chinggis Khan and his sons. Moreover, he collected most of the information from local sources of that period. But the main part of the work contains the history of Juchi Khan, his children and the history of the Crimea. It is for this reason that Abdulgaffar Kyrymi gives such a detailed genealogy of the Girayids and the sequence of their rules in the Crimean Khanate. Abdulgaffar Kyrymi’s genealogy begins with Chinggis Khan and his daughters (Kuchi Bike, Chechgan Bigim, Tumalyn Bigim, Elyatun Bigim, Turaly Bigim as well as with his 500 wives. But only five of them were respected: Borte Kuchin Biim, Kulan Bigim, Suyugan Khatun Bigim, Kökchi Bigim, Jeksulu Bigim. List of the Crimean dynasty of the Girayids is offered here to specialists, beginning with Haji Giray to Arslan Giray. Comparison of the list of the Girayid khans contained in “Umdet al-Akhbar” with researches on this topic reveals some differences. In the opinion of the author, to solve these problems, along with genealogical and other narrative sources, it is also necessary to use the numismatics data and a large corpus of letters of the Crimean khans to the rulers of various countries.

  18. Mathematics and culture in Micronesia

    Directory of Open Access Journals (Sweden)

    A. J. (Sandy Dawson

    2015-07-01

    Full Text Available Wheatley and Frieze‟s book, Walk Out Walk On, provides the conceptual framework for an examination of Project MACIMISE, a National Science Foundation funded project that focused on the languages and cultural practices of nine Pacific islands and the state of Hawai„i. MACIMISE, pronounced as if spelled „maximize‟, is a 5-year Project. The Project‟s task is the development of elementary school mathematics curriculum units sensitive to local mathematical thought and experience. There were twenty-one participants (who call themselves the Macimisers in the Project. The participants were educated in ethnographic and anthropological research strategies to enable them to retrieve/uncover cultural practices extant in the communities where they lived. This academics work was accomplished partially via distance learning when the participants were registered in advanced degree programs at the University of Hawai„i—Mānoa. In this paper, the Project is analyzed in terms of the concepts (scaling across, start anywhere—follow it everywhere, intervention to friendship, the art of hosting and the use of circle advanced by Wheatley and Frieze.

  19. Students’ mathematical learning in modelling activities

    DEFF Research Database (Denmark)

    Kjeldsen, Tinne Hoff; Blomhøj, Morten

    2013-01-01

    Ten years of experience with analyses of students’ learning in a modelling course for first year university students, led us to see modelling as a didactical activity with the dual goal of developing students’ modelling competency and enhancing their conceptual learning of mathematical concepts i...... create and help overcome hidden cognitive conflicts in students’ understanding; that reflections within modelling can play an important role for the students’ learning of mathematics. These findings are illustrated with a modelling project concerning the world population....

  20. Probability theory and mathematical statistics for engineers

    CERN Document Server

    Pugachev, V S

    1984-01-01

    Probability Theory and Mathematical Statistics for Engineers focuses on the concepts of probability theory and mathematical statistics for finite-dimensional random variables.The publication first underscores the probabilities of events, random variables, and numerical characteristics of random variables. Discussions focus on canonical expansions of random vectors, second-order moments of random vectors, generalization of the density concept, entropy of a distribution, direct evaluation of probabilities, and conditional probabilities. The text then examines projections of random vector

  1. Periodificación en arqueología peruana: genealogía y aporía

    Directory of Open Access Journals (Sweden)

    2005-01-01

    Full Text Available Périodisation en archéologie péruvienne : généalogie et aporie Résumé: La périodisation est un point stratégique d’intersection entre la théorie et la recherche empirique. Son histoire au Pérou résume bien les débats expérimentés par l’archéologie péruvienne. La variété des périodisations postulées et pratiquées dans les Andes l’a transformée en un champ d’étude privilégié. Une fois assumée la réciprocit nécessaire entre le développement d’une discipline et la connaissance de son histoire, l’auteur se livre à cette enquête sur les principaux systèmes de periodisation, les affrontements entre les tendances et le panorama actuel. Ce n’est pas un travail théorique, mais plutôt historiographique sur un aspect spécifique de l’archeologie péruvienne. L’objectif est de faire une généalogie critique et fonctionnelle, c’est-à-dire présenter la genèse des schémas conceptuels utilisés aujourd’hui, leurs liens et leurs limites. La periodificación es un estratégico punto de intersección entre la propuesta teórica y la investigación empírica. Su historia resume bien los debates por los que ha atravesado la arqueología peruana. La variedad de periodificaciones postuladas y/o practicadas en el área central andina, las convierte en un privilegiado campo de estudio. Asumida la necesaria reciprocidad entre el avance de toda disciplina y el conocimiento de su historia, se plantea este recorrido por los principales sistemas de periodificación, los enfrentamientos entre tendencias y el panorama actual. No se trata de un enfoque teórico, antes bien historiográfico de un aspecto específico de la arqueología peruana. El objetivo es hacer una genealogía crítica y funcional, es decir presentar la génesis de los esquemas conceptuales actualmente utilizados, sus conexiones y límites. Periodization in Peruvian archaeology: genealogy and apory Abstract: Periodization is a strategic point of intersection

  2. The argument of mathematics

    CERN Document Server

    Aberdein, Andrew

    2014-01-01

    This book presents a comprehensive investigation into the relationship between argumentation theory and the philosophy of mathematical practice. It offers large array of examples ranging from the history of mathematics to formal proof verification.

  3. Mathematical knowledge in teaching

    CERN Document Server

    Rowland, Tim

    2011-01-01

    This book examines issues of considerable significance in addressing global aspirations to raise standards of teaching and learning in mathematics by developing approaches to characterizing, assessing and developing mathematical knowledge for teaching.

  4. Developing My Mathematics Identity

    Science.gov (United States)

    Gonzalez, Lidia

    2016-01-01

    Assuming the role of storyteller, the author uses her experiences as a graduate student and beginning teacher to reflect critically on issues related to mathematics, mathematics education, gender, and diversity.

  5. Journal of applied mathematics

    National Research Council Canada - National Science Library

    2001-01-01

    "[The] Journal of Applied Mathematics is a refereed journal devoted to the publication of original research papers and review articles in all areas of applied, computational, and industrial mathematics...

  6. Semiotic Scaffolding in Mathematics

    DEFF Research Database (Denmark)

    Johansen, Mikkel Willum; Misfeldt, Morten

    2015-01-01

    This paper investigates the notion of semiotic scaffolding in relation to mathematics by considering its influence on mathematical activities, and on the evolution of mathematics as a research field. We will do this by analyzing the role different representational forms play in mathematical...... cognition, and more broadly on mathematical activities. In the main part of the paper, we will present and analyze three different cases. For the first case, we investigate the semiotic scaffolding involved in pencil and paper multiplication. For the second case, we investigate how the development of new...... in both mathematical cognition and in the development of mathematics itself, but mathematical cognition cannot itself be reduced to the use of semiotic scaffolding....

  7. Mathematics for the nonmathematician

    CERN Document Server

    Kline, Morris

    1967-01-01

    Erudite and entertaining overview follows development of mathematics from ancient Greeks to present. Topics include logic and mathematics, the fundamental concept, differential calculus, probability theory, much more. Exercises and problems.

  8. Mathematical Modeling Using MATLAB

    National Research Council Canada - National Science Library

    Phillips, Donovan

    1998-01-01

    .... Mathematical Modeling Using MA MATLAB acts as a companion resource to A First Course in Mathematical Modeling with the goal of guiding the reader to a fuller understanding of the modeling process...

  9. Project origami activities for exploring mathematics

    CERN Document Server

    Hull, Thomas

    2012-01-01

    IntroductionActivity 1 Folding Equilateral Triangles in a Square Activity 2 Origami Trigonometry Activity 3 Dividing a Length into Equal Nths: Fujimoto Approximation Activity 4 Dividing a Length into Equal Nths Exactly Activity 5 Origami Helix Activity 6 Folding a Parabola Activity 7 Can Origami Trisect an Angle?Activity 8 Solving Cubic Equations Activity 9 Lill's Method Activity 10 Folding Strips into Knots Activity 11 Haga's ""Origamics"" Activity 12 Modular Star Ring Activity 13 Folding a Butterfly Bomb Activity 14 Molly's Hexahedron Activity 15 Business Card Modulars Activity 16 Five Inter

  10. A RUTCOR Project on Discrete Applied Mathematics

    Science.gov (United States)

    1989-01-30

    the more important results of this work is the possibility that Groebner basis methods of computational commutative algebra might lead to effective...Billera, L.J., " Groebner Basis Methods for Multivariate Splines," prepared for the Proceedings of the Oslo Conference on Computer-aided Geometric Design

  11. A RUTCOR Project in Discrete Applied Mathematics

    Science.gov (United States)

    1990-02-20

    representations of smooth piecewise polynomial functions over triangulated regions have led in particular to the conclusion that Groebner basis methods of...Reversing Number of a Digraph," in preparation. 4. Billera, L.J., and Rose, L.L., " Groebner Basis Methods for Multivariate Splines," RRR 1-89, January

  12. Inter-genomic displacement via lateral gene transfer of bacterial trp operons in an overall context of vertical genealogy

    Directory of Open Access Journals (Sweden)

    Keyhani Nemat O

    2004-06-01

    Full Text Available Abstract Background The growing conviction that lateral gene transfer plays a significant role in prokaryote genealogy opens up a need for comprehensive evaluations of gene-enzyme systems on a case-by-case basis. Genes of tryptophan biosynthesis are frequently organized as whole-pathway operons, an attribute that is expected to facilitate multi-gene transfer in a single step. We have asked whether events of lateral gene transfer are sufficient to have obscured our ability to track the vertical genealogy that underpins tryptophan biosynthesis. Results In 47 complete-genome Bacteria, the genes encoding the seven catalytic domains that participate in primary tryptophan biosynthesis were distinguished from any paralogs or xenologs engaged in other specialized functions. A reliable list of orthologs with carefully ascertained functional roles has thus been assembled and should be valuable as an annotation resource. The protein domains associated with primary tryptophan biosynthesis were then concatenated, yielding single amino-acid sequence strings that represent the entire tryptophan pathway. Lateral gene transfer of several whole-pathway trp operons was demonstrated by use of phylogenetic analysis. Lateral gene transfer of partial-pathway trp operons was also shown, with newly recruited genes functioning either in primary biosynthesis (rarely or specialized metabolism (more frequently. Conclusions (i Concatenated tryptophan protein trees are congruent with 16S rRNA subtrees provided that the genomes represented are of sufficiently close phylogenetic spacing. There are currently seven tryptophan congruency groups in the Bacteria. Recognition of a succession of others can be expected in the near future, but ultimately these should coalesce to a single grouping that parallels the 16S rRNA tree (except for cases of lateral gene transfer. (ii The vertical trace of evolution for tryptophan biosynthesis can be deduced. The daunting complexities engendered

  13. Modern mathematics made simple

    CERN Document Server

    Murphy, Patrick

    1982-01-01

    Modern Mathematics: Made Simple presents topics in modern mathematics, from elementary mathematical logic and switching circuits to multibase arithmetic and finite systems. Sets and relations, vectors and matrices, tesselations, and linear programming are also discussed.Comprised of 12 chapters, this book begins with an introduction to sets and basic operations on sets, as well as solving problems with Venn diagrams. The discussion then turns to elementary mathematical logic, with emphasis on inductive and deductive reasoning; conjunctions and disjunctions; compound statements and conditional

  14. Modern Versus Traditional Mathematics

    Science.gov (United States)

    Roberts, A. M.

    1974-01-01

    The effect of different secondary school mathematics syllabi on first-year performance in college-level mathematics was studied in an attempt to evaluate the syllabus change. Students with a modern mathematics background performed sigficantly better on most first-year units. A topic-by-topic analysis of results is included. (DT)

  15. Contrasts in Mathematical Challenges in A-Level Mathematics and Further Mathematics, and Undergraduate Mathematics Examinations

    Science.gov (United States)

    Darlington, Ellie

    2014-01-01

    This article describes part of a study which investigated the role of questions in students' approaches to learning mathematics at the secondary-tertiary interface, focussing on the enculturation of students at the University of Oxford. Use of the Mathematical Assessment Task Hierarchy taxonomy revealed A-level Mathematics and Further Mathematics…

  16. Mathematics and quantum mechanics

    International Nuclear Information System (INIS)

    Santander, M.

    2000-01-01

    Several episodes in the relation between Mathematics and Quantum Mechanics are discussed; and the emphasis is put in the existence of multiple and sometimes unexpected connections between ideas originating in Mathematics and in Quantum Physics. The question of the unresasonable effectiveness of Mathematics in Physics is also presented in the same light. (Author) 3 refs

  17. Mathematics Teaching as Praxis

    Science.gov (United States)

    Grootenboer, Peter; Edwards-Groves, Christine

    2014-01-01

    In this paper we argue that mathematics teaching can be conceptualised as a form of praxis. Viewing mathematics teaching as praxis foregrounds the moral nature of teaching and the educational practices that are developed in response to the educational needs in particular sites. The case for praxis in mathematics education is then made by drawing…

  18. Mathematics Teaching Today

    Science.gov (United States)

    Martin, Tami S.; Speer, William R.

    2009-01-01

    This article describes features, consistent messages, and new components of "Mathematics Teaching Today: Improving Practice, Improving Student Learning" (NCTM 2007), an updated edition of "Professional Standards for Teaching Mathematics" (NCTM 1991). The new book describes aspects of high-quality mathematics teaching; offers a model for observing,…

  19. Empowering Mathematical Practices

    Science.gov (United States)

    Coomes, Jacqueline; Lee, Hyung Sook

    2017-01-01

    Mathematics teachers want to empower students as mathematical thinkers and doers (NCTM 2000). Specific ways of thinking and doing mathematics were described in the Process Standards (NCTM 2000); they were further characterized as habits of mind (Mark, Goldenberg, and Sword 2010); and more recently, they were detailed in the Common Core's Standards…

  20. Learning Environments in Mathematics

    Science.gov (United States)

    Turner, Vanshelle E.

    2017-01-01

    Learning mathematics is problematic for most primary school age children because mathematics is rote and the memorization of steps rather than an approach to seeing relationships that builds inquiry and understanding. Therefore, the traditional "algorithmic" way of teaching mathematics has not fully prepared students to be critical…

  1. Mathematics a minimal introduction

    CERN Document Server

    Buium, Alexandru

    2013-01-01

    Pre-Mathematical Logic Languages Metalanguage Syntax Semantics Tautologies Witnesses Theories Proofs Argot Strategies Examples Mathematics ZFC Sets Maps Relations Operations Integers Induction Rationals Combinatorics Sequences Reals Topology Imaginaries Residues p-adics Groups Orders Vectors Matrices Determinants Polynomials Congruences Lines Conics Cubics Limits Series Trigonometry Integrality Reciprocity Calculus Metamodels Categories Functors Objectives Mathematical Logic Models Incompleteness Bibliography Index

  2. Masculinities in mathematics

    CERN Document Server

    Mendick, Heather

    2006-01-01

    The study of mathematics, with other ''gendered'' subjects such as science and engineering, usually attracts more male than female pupils. This book explores this phenomenon, addressing the important question of why more boys than girls choose to study mathematics. It illuminates what studying mathematics means for both students and teachers.

  3. Mathematics Connection: Editorial Policies

    African Journals Online (AJOL)

    Focus and Scope. MATHEMATICS CONNECTION aims at providing a forum to promote the development of Mathematics Education in Ghana. Articles that seek to enhance the teaching and/or learning of mathematics at all levels of the educational system are welcome ...

  4. Mathematics Connection: Contact

    African Journals Online (AJOL)

    Principal Contact. Dr. Kofi Mereku Executive Editor Department of Mathematics Education, UCE Mathematical Association of Ghana, C/o Department of Mathematics Education University College of Education of Winneba P. O. Box 25, Winneba, Ghana Phone: +233244961318. Email: dkmereku@uew.edu.gh ...

  5. Mathematical Discovery: Hadamard Resurected

    Science.gov (United States)

    Liljedahl, Peter

    2004-01-01

    In 1943 Jacques Hadamard gave a series of lectures on mathematical invention at the Ecole Libre des Hautes Etudes in New York City. These talks were subsequently published as The Psychology of Mathematical Invention in the Mathematical Field (Hadamard, 1945). In this article I present a study that mirrors the work of Hadamard. Results both…

  6. Utah's New Mathematics Core

    Science.gov (United States)

    Utah State Office of Education, 2011

    2011-01-01

    Utah has adopted more rigorous mathematics standards known as the Utah Mathematics Core Standards. They are the foundation of the mathematics curriculum for the State of Utah. The standards include the skills and understanding students need to succeed in college and careers. They include rigorous content and application of knowledge and reflect…

  7. Mathematical Sciences in Australia

    Science.gov (United States)

    Thomas, Jan; Muchatuta, Michelle; Wood, Leigh

    2009-01-01

    This article investigates enrolment trends in mathematical sciences in Australian universities. Data has been difficult to extract and the coding for mathematical disciplines has made investigation challenging. We show that the number of mathematics major undergraduates in Australia is steadily declining though the number studying…

  8. Variation and Mathematics Pedagogy

    Science.gov (United States)

    Leung, Allen

    2012-01-01

    This discussion paper put forwards variation as a theme to structure mathematical experience and mathematics pedagogy. Patterns of variation from Marton's Theory of Variation are understood and developed as types of variation interaction that enhance mathematical understanding. An idea of a discernment unit comprising mutually supporting variation…

  9. Teaching Mathematics as Agape

    Science.gov (United States)

    Amidon, Joel C.

    2011-01-01

    What happens when the problem of inequitable access to mathematics is addressed by agape (pronounced agapa) or attending to the relationships students develop with mathematics? To respond to this question, this paper offers a description of the journey towards teaching mathematics as agape. First, I organized examples of equity pedagogy around the…

  10. Mathematics of Risk Taking

    Indian Academy of Sciences (India)

    Author Affiliations. K B Athreya1 2 M G Nadkarni3. Department of Mathematics Iowa State University, Ames, Iowa; I M I, Department of Mathematics, Indian Institute of Science, Bangalore, 560012, India. Department of Mathematics, University of Mumbai Kalina, Mumbai, 400098, India.

  11. What is the problem in problem-based learning in higher education mathematics

    Science.gov (United States)

    Dahl, Bettina

    2018-01-01

    Problem and Project-Based Learning (PBL) emphasise collaborate work on problems relevant to society and emphases the relation between theory and practice. PBL fits engineering students as preparation for their future professions but what about mathematics? Mathematics is not just applied mathematics, but it is also a body of abstract knowledge where the application in society is not always obvious. Does mathematics, including pure mathematics, fit into a PBL curriculum? This paper argues that it does for two reasons: (1) PBL resembles the working methods of research mathematicians. (2) The concept of society includes the society of researchers to whom theoretical mathematics is relevant. The paper describes two cases of university PBL projects in mathematics; one in pure mathematics and the other in applied mathematics. The paper also discusses that future engineers need to understand the world of mathematics as well as how engineers fit into a process of fundamental-research-turned-into-applied-science.

  12. Cartographic science: a compendium of map projections, with derivations

    National Research Council Canada - National Science Library

    Fenna, Donald

    2007-01-01

    .... Starting from widely described geometric projecting onto flat paper, cylinder, and cone, and then progressing through several layers of mathematics to reach modern projections, the author maximizes...

  13. What is mathematical logic?

    CERN Document Server

    Crossley, J N; Brickhill, CJ; Stillwell, JC

    2010-01-01

    Although mathematical logic can be a formidably abstruse topic, even for mathematicians, this concise book presents the subject in a lively and approachable fashion. It deals with the very important ideas in modern mathematical logic without the detailed mathematical work required of those with a professional interest in logic.The book begins with a historical survey of the development of mathematical logic from two parallel streams: formal deduction, which originated with Aristotle, Euclid, and others; and mathematical analysis, which dates back to Archimedes in the same era. The streams beg

  14. Introductory discrete mathematics

    CERN Document Server

    Balakrishnan, V K

    2010-01-01

    This concise text offers an introduction to discrete mathematics for undergraduate students in computer science and mathematics. Mathematics educators consider it vital that their students be exposed to a course in discrete methods that introduces them to combinatorial mathematics and to algebraic and logical structures focusing on the interplay between computer science and mathematics. The present volume emphasizes combinatorics, graph theory with applications to some stand network optimization problems, and algorithms to solve these problems.Chapters 0-3 cover fundamental operations involv

  15. Mathematics for physical chemistry

    CERN Document Server

    Mortimer, Robert G

    2013-01-01

    Mathematics for Physical Chemistry is the ideal supplementary text for practicing chemists and students who want to sharpen their mathematics skills while enrolled in general through physical chemistry courses. This book specifically emphasizes the use of mathematics in the context of physical chemistry, as opposed to being simply a mathematics text. This 4e includes new exercises in each chapter that provide practice in a technique immediately after discussion or example and encourage self-study. The early chapters are constructed around a sequence of mathematical topics, wit

  16. Fundamental concepts of mathematics

    CERN Document Server

    Goodstein, R L

    Fundamental Concepts of Mathematics, 2nd Edition provides an account of some basic concepts in modern mathematics. The book is primarily intended for mathematics teachers and lay people who wants to improve their skills in mathematics. Among the concepts and problems presented in the book include the determination of which integral polynomials have integral solutions; sentence logic and informal set theory; and why four colors is enough to color a map. Unlike in the first edition, the second edition provides detailed solutions to exercises contained in the text. Mathematics teachers and people

  17. Mathematics for the imagination

    CERN Document Server

    Higgins, Peter

    2002-01-01

    Mathematics for the Imagination provides an accessible and entertaining investigation into mathematical problems in the world around us. From world navigation, family trees, and calendars to patterns, tessellations, and number tricks, this informative and fun new book helps you to understand the maths behind real-life questions and rediscover your arithmetical mind.This is a follow-up to the popular Mathematics for the Curious, Peter Higgins's first investigation into real-life mathematical problems.A highly involving book which encourages the reader to enter into the spirit of mathematical ex

  18. Philosophy of mathematics

    CERN Document Server

    Gabbay, Dov M; Woods, John

    2009-01-01

    One of the most striking features of mathematics is the fact that we are much more certain about the mathematical knowledge we have than about what mathematical knowledge is knowledge of. Are numbers, sets, functions and groups physical entities of some kind? Are they objectively existing objects in some non-physical, mathematical realm? Are they ideas that are present only in the mind? Or do mathematical truths not involve referents of any kind? It is these kinds of questions that have encouraged philosophers and mathematicians alike to focus their attention on issues in the philosophy of mat

  19. The nature of mathematics

    CERN Document Server

    Jourdain, Philip E B

    2007-01-01

    Anyone with an interest in mathematics will welcome the republication of this little volume by a remarkable mathematician who was also a logician, a philosopher, and an occasional writer of fiction and poetry. Originally published in 1913, and later included in the acclaimed anthology The World of Mathematics, Jourdain's survey shows how and why the methods of mathematics were developed, traces the development of mathematical science from the earliest to modern times, and chronicles the application of mathematics to natural science.Starting with the ancient Egyptians and Greeks, the author p

  20. The development of mathematics

    CERN Document Server

    Bell, Eric Temple

    1945-01-01

    ""This important book . . . presents a broad account of the part played by mathematics in the evolution of civilization, describing clearly the main principles, methods, and theories of mathematics that have survived from about 4000 BC to 1940.""― BooklistIn this time-honored study, one of the 20th century's foremost scholars and interpreters of the history and meaning of mathematics masterfully outlines the development of its leading ideas, and clearly explains the mathematics involved in each. According to the author, a professor of mathematics at the California Institute of Technology from

  1. Mathematics in ancient Greece

    CERN Document Server

    Dantzig, Tobias

    2006-01-01

    More than a history of mathematics, this lively book traces mathematical ideas and processes to their sources, stressing the methods used by the masters of the ancient world. Author Tobias Dantzig portrays the human story behind mathematics, showing how flashes of insight in the minds of certain gifted individuals helped mathematics take enormous forward strides. Dantzig demonstrates how the Greeks organized their precursors' melange of geometric maxims into an elegantly abstract deductive system. He also explains the ways in which some of the famous mathematical brainteasers of antiquity led

  2. Dr Math Rocks!: Using instant messaging to help pupils with mathematics homework

    CSIR Research Space (South Africa)

    Butgereit, LL

    2008-05-01

    Full Text Available Mathematics education in South Africa needs help. This paper describes a project where school aged pupils could get help with their mathematics homework using MXit, South Africa's most popular instant messaging system, on their cell phones...

  3. Identification, genealogical structure and population genetics of S-alleles in Malus sieversii, the wild ancestor of domesticated apple.

    Science.gov (United States)

    Ma, X; Cai, Z; Liu, W; Ge, S; Tang, L

    2017-09-01

    The self-incompatibility (SI) gene that is specifically expressed in pistils encodes the SI-associated ribonuclease (S-RNase), functioning as the female-specificity determinant of a gametophytic SI system. Despite extensive surveys in Malus domestica, the S-alleles have not been fully investigated for Malus sieversii, the primary wild ancestor of the domesticated apple. Here we screened the M. sieversii S-alleles via PCR amplification and sequencing, and identified 14 distinct alleles in this species. By contrast, nearly 40 are present in its close wild relative, Malus sylvestris. We further sequenced 8 nuclear genes to provide a neutral reference, and investigated the evolution of S-alleles via genealogical and population genetic analyses. Both shared ancestral polymorphism and an excess of non-synonymous substitution were detected in the S-RNases of the tribe Maleae in Rosaceae, indicating the action of long-term balancing selection. Approximate Bayesian Computations based on the reference neutral loci revealed a severe bottleneck in four of the six studied M. sieversii populations, suggesting that the low number of S-alleles found in this species is mainly the result of diversity loss due to a drastic population contraction. Such a bottleneck may lead to ambiguous footprints of ongoing balancing selection detected at the S-locus. This study not only elucidates the constituents and number of S-alleles in M. sieversii but also illustrates the potential utility of S-allele number shifts in demographic inference for self-incompatible plant species.

  4. Reconstructing genealogies of serial samples under the assumption of a molecular clock using serial-sample UPGMA.

    Science.gov (United States)

    Drummond, A; Rodrigo, A G

    2000-12-01

    Reconstruction of evolutionary relationships from noncontemporaneous molecular samples provides a new challenge for phylogenetic reconstruction methods. With recent biotechnological advances there has been an increase in molecular sequencing throughput, and the potential to obtain serial samples of sequences from populations, including rapidly evolving pathogens, is fast being realized. A new method called the serial-sample unweighted pair grouping method with arithmetic means (sUPGMA) is presented that reconstructs a genealogy or phylogeny of sequences sampled serially in time using a matrix of pairwise distances. The resulting tree depicts the terminal lineages of each sample ending at a different level consistent with the sample's temporal order. Since sUPGMA is a variant of UPGMA, it will perform best when sequences have evolved at a constant rate (i.e., according to a molecular clock). On simulated data, this new method performs better than standard cluster analysis under a variety of longitudinal sampling strategies. Serial-sample UPGMA is particularly useful for analysis of longitudinal samples of viruses and bacteria, as well as ancient DNA samples, with the minimal requirement that samples of sequences be ordered in time.

  5. Reconstructing Harry: a genealogical study of a colonial family 'inside' and 'outside' the Grahamstown Asylum, 1888-1918.

    Science.gov (United States)

    Wilbraham, Lindy

    2014-04-01

    Recent scholarship has explored the dynamics between families and colonial lunatic asylums in the late nineteenth century, where families actively participated in the processes of custodial care, committal, treatment and release of their relatives. This paper works in this historical field, but with some methodological and theoretical differences. The Foucauldian study is anchored to a single case and family as an illness narrative that moves cross-referentially between bureaucratic state archival material, psychiatric case records, and intergenerational family-storytelling and family photographs. Following headaches and seizures, Harry Walter Wilbraham was medically boarded from his position as Postmaster in the Cape of Good Hope Colony of South Africa with a 'permanent disease of the brain', and was committed to the Grahamstown Asylum in 1910, where he died the following year, aged 40 years. In contrast to writings about colonial asylums that usually describe several patient cases and thematic patterns in archival material over time and place, this study's genealogical lens examines one white settler male patient's experiences within mental health care in South Africa between 1908 and 1911. The construction of Harry's 'case' interweaves archival sources and reminiscences inside and outside the asylum, and places it within psychiatric discourse of the time, and family dynamics in the years that followed. Thus, this case study maps the constitution of 'patient' and 'family' in colonial life, c.1888-1918, and considers the calamity, uncertainty, stigma and silences of mental illness.

  6. Mathematics for physicists

    CERN Document Server

    Martin, B R

    2015-01-01

    Mathematics for Physicists is a relatively short volume covering all the essential mathematics needed for a typical first degree in physics, from a starting point that is compatible with modern school mathematics syllabuses. Early chapters deliberately overlap with senior school mathematics, to a degree that will depend on the background of the individual reader, who may quickly skip over those topics with which he or she is already familiar. The rest of the book covers the mathematics that is usually compulsory for all students in their first two years of a typical university physics degree, plus a little more. There are worked examples throughout the text, and chapter-end problem sets. Mathematics for Physicists features: * Interfaces with modern school mathematics syllabuses * All topics usually taught in the first two years of a physics degree * Worked examples throughout * Problems in every chapter, with answers to selected questions at the end of the book and full solutions on a website This text will ...

  7. Meaning in mathematics education

    CERN Document Server

    Valero, Paola; Hoyles, Celia; Skovsmose, Ole

    2005-01-01

    What does it mean to know mathematics? How does meaning in mathematics education connect to common sense or to the meaning of mathematics itself? How are meanings constructed and communicated and what are the dilemmas related to these processes? There are many answers to these questions, some of which might appear to be contradictory. Thus understanding the complexity of meaning in mathematics education is a matter of huge importance. There are twin directions in which discussions have developed - theoretical and practical - and this book seeks to move the debate forward along both dimensions while seeking to relate them where appropriate. A discussion of meaning can start from a theoretical examination of mathematics and how mathematicians over time have made sense of their work. However, from a more practical perspective, anybody involved in teaching mathematics is faced with the need to orchestrate the myriad of meanings derived from multiple sources that students develop of mathematical knowledge.

  8. Explaining the Mathematical Creativity of a Young Boy: An Interdisciplinary Venture between Mathematics Education and Psychoanalysis

    Science.gov (United States)

    Krummheuer, Götz; Leuzinger-Bohleber, Marianne; Müller-Kirchof, Marion; Münz, Melanie; Vogel, Rose

    2013-01-01

    First results of the project "Mathematical Creativity of Children at Risk" (MaKreKi) will be presented. The project is conducted in the interdisciplinary research center "Individual Development and Adaptive Education of Children at Risk" (IDeA [http://www.idea-frankfurt.eu; accessed 7 June 2013]). Combining a…

  9. Mathematical modelling of fracture hydrology

    International Nuclear Information System (INIS)

    Herbert, A.W.; Hodgkindon, D.P.; Lever, D.A.; Robinson, P.C.; Rae, J.

    1985-01-01

    This report reviews work carried out between January 1983 and December 1984 for the CEC/DOE contract 'Mathematical Modelling of Fracture Hydrology' which forms part of the CEC Mirage project (CEC 1984. Come 1985. Bourke et. al. 1983). It describes the development and use of a variety of mathematical models for the flow of water and transport of radionuclides in flowing groundwater. These models have an important role to play in assessing the long-term safety of radioactive waste burial, and in the planning and interpretation of associated experiments. The work is reported under five headings, namely 1) Statistical fracture network modelling, 2) Continuum models of flow and transport, 3) Simplified models, 4) Analysis of laboratory experiments, 5) Analysis of field experiments

  10. The History of Mathematics and Mathematical Education

    Science.gov (United States)

    Grattan-Guinness, I.

    1977-01-01

    Answers to questions which were asked after the author's various lectures in Australia are gathered here. Topics touched upon include "new" mathematics, unknown constants and free variables, propositional functions, linear algebra, arithmetic and geometry, and student assessment. (MN)

  11. Students' perceptions of the relevance of mathematics in engineering

    Science.gov (United States)

    Flegg, Jennifer; Mallet, Dann; Lupton, Mandy

    2012-09-01

    In this article, we report on the findings of an exploratory study into the experience of students as they learn first year engineering mathematics. Here we define engineering as the application of mathematics and sciences to the building and design of projects for the use of society [M. Kirschenman and B. Brenner, Education for Civil Engineering: A Profession of Practice, Leader. Manag. Eng. 10 (2010), p. 54]. Qualitative and quantitative data on students' views of the relevance of their mathematics study to their engineering studies and future careers in engineering was collected. The students described using a range of mathematics techniques (mathematics skills developed, mathematics concepts applied to engineering and skills developed relevant for engineering) for various usages (as a subject of study, a tool for other subjects or a tool for real world problems). We found a number of themes relating to the design of engineering mathematics curriculum emerged from the data. These included the relevance of mathematics within different engineering majors, the relevance of mathematics to future studies, the relevance of learning mathematical rigour and the effectiveness of problem-solving tasks in conveying the relevance of mathematics more effectively than other forms of assessment. We make recommendations for the design of engineering mathematics curriculum based on our findings.

  12. Genealogy of the body and genealogical body

    Directory of Open Access Journals (Sweden)

    Paola Cecchetti

    2011-06-01

    Full Text Available A partire da un quadro di Frida Kahlo intitolato I miei nonni, i miei genitori e io le due autrici indagano quel testo-immagine che sta all'origine dello stile di lettura del soggetto. Posto dinanzi alla stessa immagine, ciascuno ne fa una rappresentazione estremamente personale, un quadro delle proprie vicissitudini interne e dei legami transgenerazionali che lo hanno segnato. I momenti nei quali si articola la ricerca sono tre: la scrittura dell’occhio, il ricalco e il percorso della mano, il negativo e l’assenza.A essi segue poi lo psicodramma. Tale successione temporale abitua a vedere nell'immagine disegnata l'immagine negata, assente. L'esperienza sembra aver creato un nuovo metodo di indagine della psiche rispetto al transgenerazionale, metodo che intreccia il genogramma (di origini sistemico-relazionale e lo psicodramma analitico, e che viene chiamato “genodramma psicoanalitico”. Partendo da un dato clinico – l'esilità del legame che le nuove generazioni intrattengono con quelle che le precedono, sembra vogliano rinegoziare il contratto narcisistico che assegna al passato il posto dell'assenza. Il contributo si chiude con un interrogativo: “Alla ricerca di che cosa? Della presenza o, meglio, delle tracce lasciate nel soggetto dall'Altro che precede l'insediamento dell'Io”.

  13. How we understand mathematics conceptual integration in the language of mathematical description

    CERN Document Server

    Woźny, Jacek

    2018-01-01

    This volume examines mathematics as a product of the human mind and analyzes the language of "pure mathematics" from various advanced-level sources. Through analysis of the foundational texts of mathematics, it is demonstrated that math is a complex literary creation, containing objects, actors, actions, projection, prediction, planning, explanation, evaluation, roles, image schemas, metonymy, conceptual blending, and, of course, (natural) language. The book follows the narrative of mathematics in a typical order of presentation for a standard university-level algebra course, beginning with analysis of set theory and mappings and continuing along a path of increasing complexity. At each stage, primary concepts, axioms, definitions, and proofs will be examined in an effort to unfold the tell-tale traces of the basic human cognitive patterns of story and conceptual blending. This book will be of interest to mathematicians, teachers of mathematics, cognitive scientists, cognitive linguists, and anyone interested...

  14. Low and High Achivers in Mathematics

    DEFF Research Database (Denmark)

    Overgaard, Steffen; Tonnesen, Pia Beck

    2016-01-01

    achievers - within their first years of schooling think mathematically, as background to initiate more effective teaching of the two groups of students. In autumn 2014, 328 Grade 2 students (born in 2006) received an individual special teaching, early intervention, based on the same model and material, 20...... to enhance the teaching of low and high mathematics achievers so as to increase their mathematical knowledge and confidence.......Every mathematics teacher has a challenge in coping with the gap between low and high achievers in the classroom. The purpose of the the project, Early Math Intervention for Marginalized Students, TMTM 2014, is to bring forth knowledge of how these marginalized students - low as well as high...

  15. Science, Engineering, and Mathematics (SEM) at the Timbuktu Academy

    Science.gov (United States)

    2005-07-31

    Science (AAAS) and the first Standards of the National Council of Teachers o f Mathematics ( NCTM ) both appeared in 1989 . They were followed by Scope...National Council of Teachers of Mathematics ( NCTM , 1989, 1991 , and 1995), Science for All Americans (Project 2061) and the Benchmarks of the America n...Documents, Mail Stop SSOP, Washington, DC, 20402-9328 . National Council of Teachers of Mathematics ( NCTM ) . Curriculum and Evaluation Standard s for School

  16. Technology-Enhanced Mathematics Education for Creative Engineering Studies

    DEFF Research Database (Denmark)

    Triantafyllou, Eva; Timcenko, Olga

    2014-01-01

    This project explores the opportunities and challenges of integrating digital technologies in mathematics education in creative engineering studies. Students in such studies lack motivation and do not perceive the mathematics the same way as mathematics students do. Digital technologies offer new...... are conceptualized. Then, we are going to apply this field data in designing learning technologies, which will be introduced in university classrooms. The effect of this introduction will be evaluated through educational design experiments....

  17. Genealogías feministas: sobre mujeres, revoluciones e ilustración: una mirada desde el sur Feminist genealogies: on women, revolution & enlightment: a point of view from the south

    Directory of Open Access Journals (Sweden)

    Alejandra Ciriza Jofré

    2012-12-01

    Full Text Available Este trabajo apunta a la esbozar y reconstruir genealogías feministas desde el sur, procurando articular la reflexión filosófica sobre el pasado político de las mujeres y los fragmentos dispersos de la historia de las mujeres en Nuestra América. La lectura que me propongo realizar se halla ligada a una perspectiva sobre la relación entre pasado y presente vinculada a la inspiración benjaminiana. Desde ese punto de vista, el pasado que interesa a los y las subalternas es el tiempo ahora, esto es, un tiempo que se nutre del pasado, de la mirada hacia atrás, hacia ese momento significativo en la historia de Nuestra América - el de las guerras de independencia - y el presente. En aquel tiempo se abría un horizonte entonces anticipado como de inauguración de un nuevo tiempo y de un orden político nuevo. Esta reflexión está centrada en las relaciones entre cuerpo, política e historia desde un punto de vista que busca construir conocimiento situado, y producir una crítica a la tendencia a retornar sobre la idea del carácter a-histórico de la subordinación de las mujeres, a transformarla en lo que Geneviève Fraisse denomina una 'querella', un debate sin tiempo en el que se juega la eterna repetición de lo mismo. Una operación que, desde el punto de vista que sostengo, se duplica en el caso de las mujeres del sur.The goal of this work is to sketch and reconstruct Feminist Genealogies from a southern perspective. It aims to articulate a philosophical reflection on women's political past and the disperse fragments of the history of women (herstory in Our America. This reading will be based on the Benjaminian thought about the relationship between past and present. From this point of view, the past that concerns subalterns is the jetzt zeit, a present time that is fed from the regard to the past. Namely, in this case, the relationship between a significant time of the History of Our America - the time of the Independence Wars during

  18. Mathematical Sciences Institute Workshop

    CERN Document Server

    Scott, Philip

    1990-01-01

    A so-called "effective" algorithm may require arbitrarily large finite amounts of time and space resources, and hence may not be practical in the real world. A "feasible" algorithm is one which only requires a limited amount of space and/or time for execution; the general idea is that a feasible algorithm is one which may be practical on today's or at least tomorrow's computers. There is no definitive analogue of Church's thesis giving a mathematical definition of feasibility; however, the most widely studied mathematical model of feasible computability is polynomial-time computability. Feasible Mathematics includes both the study of feasible computation from a mathematical and logical point of view and the reworking of traditional mathematics from the point of view of feasible computation. The diversity of Feasible Mathematics is illustrated by the. contents of this volume which includes papers on weak fragments of arithmetic, on higher type functionals, on bounded linear logic, on sub recursive definitions ...

  19. Open problems in mathematics

    CERN Document Server

    Nash, Jr, John Forbes

    2016-01-01

    The goal in putting together this unique compilation was to present the current status of the solutions to some of the most essential open problems in pure and applied mathematics. Emphasis is also given to problems in interdisciplinary research for which mathematics plays a key role. This volume comprises highly selected contributions by some of the most eminent mathematicians in the international mathematical community on longstanding problems in very active domains of mathematical research. A joint preface by the two volume editors is followed by a personal farewell to John F. Nash, Jr. written by Michael Th. Rassias. An introduction by Mikhail Gromov highlights some of Nash’s legendary mathematical achievements. The treatment in this book includes open problems in the following fields: algebraic geometry, number theory, analysis, discrete mathematics, PDEs, differential geometry, topology, K-theory, game theory, fluid mechanics, dynamical systems and ergodic theory, cryptography, theoretical computer sc...

  20. The Neutral State: A Genealogy of Ecosystem Service Payments in Costa Rica

    Directory of Open Access Journals (Sweden)

    David M Lansing

    2015-01-01

    Full Text Available Using the case of Costa Rica, this paper examines how ′carbon′ became an identifiable problem for that state. We trace how, during the 1980s, rationalities of financialisation and security arose in this country that allowed for Payments for Ecosystem Services (PES to emerge as an economic and political mechanism. Our central thesis is: this period initiated a government project of securing a viable future for the nation′s resources by linking them to global financial markets and international trade. This project of achieving resource security through economic circulation introduced new financial logics into forest management, as well as new modes of calculating the value and extent of the forest. These ways of framing resources found expression in the nation′s PES programme that is now central to the state′s goal of achieving carbon neutrality. Today, Costa Rica′s carbon flows are becoming territorialised as part of the nation′s atmosphere, biomass, people, and economy. This paper shows how carbon′s territorialisation did not begin with a concern for the climate, nor did it occur through diffusion of global climate policy to Costa Rica. Instead, carbon′s rise can be traced to locally specific ways of coping with the problem of resource security.