Sample records for mathematics stem subjects

  1. STEM: Science Technology Engineering Mathematics

    ERIC Educational Resources Information Center

    Carnevale, Anthony P.; Smith, Nicole; Melton, Michelle

    2011-01-01

    The generative economic power and social influence of Science, Technology, Engineering, and Mathematics (STEM) has made the production of a capable science and engineering workforce a priority among business and policy leaders. They are rightly concerned that without a robust STEM workforce, the nation will become less competitive in the global…

  2. iSTEM: Learning Mathematics through Minecraft

    ERIC Educational Resources Information Center

    Bos, Beth; Wilder, Lucy; Cook, Marcelina; O'Donnell, Ryan

    2014-01-01

    The Common Core State Standards can be taught with Minecraft, an interactive creative Lego®-like game. Integrating Science, Technology, Engineering, and Mathematics (iSTEM) authors share ideas and activities that stimulate student interest in the integrated fields of science, technology, engineering, and mathematics (STEM) in K-grade 6 classrooms.

  3. Technical Subjects. Mathematics. Science. Curriculum RP-27.

    ERIC Educational Resources Information Center

    Ontario Dept. of Education, Toronto.

    GRADES OR AGES: Grades 9-12. SUBJECT MATTER: Technical subjects and special mathematics and science courses for technical students. Technical subjects include air conditioning, auto mechanics, carpentry, drafting, applied electronics, masonry, painting, plumbing, service station operation, welding, and woodworking. ORGANIZATION AND PHYSICAL…

  4. The Future for Mathematics Subject Associations

    ERIC Educational Resources Information Center

    Pope, Sue

    2012-01-01

    Subject associations have developed, over the years, to serve the interests of the mathematics education community. We live in changing times, and education is often at the forefront of such change. So, to remain contemporary, relevant, and to have a regard for the future in a world influenced by technology, it is suggested that there is a need…

  5. Science, Technology, Engineering, Mathematics (STEM): Catalyzing Change Amid the Confusion

    ERIC Educational Resources Information Center

    Barakos, Lynn; Lujan, Vanessa; Strang, Craig

    2012-01-01

    Over the past eight years or so, educators have struggled to make sense of the many views and definitions of science, technology, engineering, and mathematics (STEM) education and what constitutes quality in STEM practices. The multitude of recent STEM funding opportunities has done little to create a common understanding about how to best engage…

  6. STEM: Science Technology Engineering Mathematics. State-Level Analysis

    ERIC Educational Resources Information Center

    Carnevale, Anthony P.; Smith, Nicole; Melton, Michelle

    2011-01-01

    The science, technology, engineering, and mathematics (STEM) state-level analysis provides policymakers, educators, state government officials, and others with details on the projections of STEM jobs through 2018. This report delivers a state-by-state snapshot of the demand for STEM jobs, including: (1) The number of forecast net new and…

  7. What Software to Use in the Teaching of Mathematical Subjects?

    ERIC Educational Resources Information Center

    Berežný, Štefan

    2015-01-01

    We can consider two basic views, when using mathematical software in the teaching of mathematical subjects. First: How to learn to use specific software for the specific tasks, e. g., software Statistica for the subjects of Applied statistics, probability and mathematical statistics, or financial mathematics. Second: How to learn to use the…

  8. STEM(ming) from Where? A Philosophical Analysis of U.S. Mathematics Education Policies

    ERIC Educational Resources Information Center

    Chesky, Nataly Z.

    2013-01-01

    Much attention has been placed on mathematics education in U.S. education policy reform discourses. Most recently, the emphasis has been on connecting mathematics with science, technology, and engineering, termed The STEM Initiative. Although a great deal of research has been conducted to understand how to meet the objectives of STEM, studies are…

  9. Selecting Multispecialty Mathematics Research Journals via Their Underlying Subject Emphases

    Microsoft Academic Search

    Tony Stankus; Virgil Diodato

    1983-01-01

    The problems of selecting mathematics research journals are reviewed, with particular emphasis on the bast matching of multispecialty mathematics journals with given mathematical specialties. A simple method involving Mathematical Reviews classification numbers identified the specialties of 21,332 papers published between 1972 and 1979 in 30 multispecialty mathematics journals. The journals' underlying subject strengths are reported and compared. This reveals strong

  10. The effect of video interviews with STEM professionals on STEM-subject attitude and STEM-career interest of middle school students in conservative Protestant Christian schools

    NASA Astrophysics Data System (ADS)

    Alsup, Philip R.

    Inspiring learners toward career options available in STEM fields (Science, Technology, Engineering, and Mathematics) is important not only for economic development but also for maintaining creative thinking and innovation. Limited amounts of research in STEM education have focused on the population of students enrolled in religious and parochial schools, and given the historic conflict between religion and science, this sector of American education is worthy of examination. The purpose of this quantitative study is to extend Gottfredson's (1981) Theory of Circumscription and Compromise as it relates to occupational aspirations. Bem's (1981) Gender Schema Theory is examined as it relates to the role of gender in career expectations, and Crenshaw's (1989) Intersectionality Theory is included as it pertains to religion as a group identifier. Six professionals in STEM career fields were video recorded while being interviewed about their skills and education as well as positive and negative aspects of their jobs. The interviews were compiled into a 25-minute video for the purpose of increasing understanding of STEM careers among middle school viewers. The research questions asked whether middle school students from conservative, Protestant Christian schools in a Midwest region increased in STEM-subject attitude and STEM-career interest as a result of viewing the video and whether gender interacted with exposure to the video. A quasi-experimental, nonequivalent control groups, pretest/posttest factorial design was employed to evaluate data collected from the STEM Semantic Survey. A Two-Way ANCOVA revealed no significant differences in dependent variables from pretest to posttest. Implications of the findings are examined and recommendations for future research are made. Descriptors: STEM career interest, STEM attitude, STEM gender disparity, Occupational aspirations, Conservative Protestant education.

  11. Retaining Students in Science, Technology, Engineering, and Mathematics (STEM) Majors

    ERIC Educational Resources Information Center

    Watkins, Jessica; Mazur, Eric

    2013-01-01

    In this paper we present results relating undergraduate student retention in science, technology, engineering, and mathematics (STEM) majors to the use of Peer Instruction (PI) in an introductory physics course at a highly selective research institution. We compare the percentages of students who switch out of a STEM major after taking a physics…

  12. Funding Opportunity: NSF Scholarships in Science, Technology, Engineering, and Mathematics (S-STEM)

    E-print Network

    Suzuki, Masatsugu

    Funding Opportunity: NSF Scholarships in Science, Technology, Engineering, and Mathematics (S-STEM Program Synopsis The NSF Scholarships in Science, Technology, Engineering and Mathematics (S- STEM students demonstrating financial need, enabling them to enter the STEM workforce or STEM graduate school

  13. Confirming the legitimacy of female participation in science, technology, engineering and mathematics (STEM): evaluation of a UK STEM initiative for girls

    Microsoft Academic Search

    Richard Watermeyer

    2012-01-01

    This paper offers a study of a Saturday science-activity club for young secondary school aged girls, in Cardiff, UK. It provides a critical analysis of interactions between group participants and their mentors in building an equitable and experiential learning zone for the promotion of science, technology, engineering and mathematics (STEM) as subject and occupational choices. This study explores how science

  14. Lacan, Subjectivity and the Task of Mathematics Education Research

    ERIC Educational Resources Information Center

    Brown, Tony

    2008-01-01

    This paper addresses the issue of subjectivity in the context of mathematics education research. It introduces the psychoanalyst and theorist Jacques Lacan whose work on subjectivity combined Freud's psychoanalytic theory with processes of signification as developed in the work of de Saussure and Peirce. The paper positions Lacan's subjectivity

  15. Expertise in Mathematics Instruction: Subject Matter Knowledge.

    ERIC Educational Resources Information Center

    Leinhardt, Gaea; Smith, Donald A.

    1985-01-01

    The organization and content of subject matter knowledge of arithmetic teachers was explored. Experienced and beginning fourth grade teachers were observed. They were evaluated on their lessons to teach fractions. Implications of their knowledge differences were discussed. (DWH)

  16. Lacan, subjectivity and the task of mathematics education research

    Microsoft Academic Search

    Tony Brown

    2008-01-01

    This paper addresses the issue of subjectivity in the context of mathematics education research. It introduces the psychoanalyst\\u000a and theorist Jacques Lacan whose work on subjectivity combined Freud’s psychoanalytic theory with processes of signification\\u000a as developed in the work of de Saussure and Peirce. The paper positions Lacan’s subjectivity initially in relation to the\\u000a work of Piaget and Vygotsky who

  17. Funding Opportunity: NSF Scholarships in Science, Technology, Engineering, and Mathematics (S-STEM)

    E-print Network

    Suzuki, Masatsugu

    Funding Opportunity: NSF Scholarships in Science, Technology, Engineering, and Mathematics (S-STEM Program Synopsis The S-STEM program emphasizes the importance of recruiting students to STEM disciplines student career placement in the STEM workforce. Participating institutions are expected to support

  18. Scholarships for Science, Technology, Engineering, and Mathematics Program (S-STEM I)

    E-print Network

    Ge, Qiaode Jeff

    Scholarships for Science, Technology, Engineering, and Mathematics Program (S-STEM I) Application Cover Sheet (This cover sheet must accompany your application.) S-STEM I is funded by the National Qualifications S-STEM I is funded to support undergraduate students at Stony Brook University who are citizens

  19. Development of an Instrument to Assess Attitudes toward Science, Technology, Engineering, and Mathematics (STEM)

    ERIC Educational Resources Information Center

    Guzey, S. Selcen; Harwell, Michael; Moore, Tamara

    2014-01-01

    There is a need for more students to be interested in science, technology, engineering, and mathematics (STEM) careers to advance U.S. competitiveness and economic growth. A consensus exists that improving STEM education is necessary for motivating more students to pursue STEM careers. In this study, a survey to measure student (grades 4-6)…

  20. Redefining Science, Technology, Engineering, and Mathematics (STEM) Educational Opportunities for Underserved and Underrepresented Students at NASA

    ERIC Educational Resources Information Center

    Hackler, Amanda Smith

    2011-01-01

    Underserved and underrepresented students consistently leave science, technology, engineering, and mathematics (STEM) degree fields to pursue less demanding majors. This perpetual problem slowed the growth in STEM degree fields (United States Department of Labor, 2007). Declining enrollment in STEM degree fields among underserved and…

  1. Methylation patterns and mathematical models reveal dynamics of stem cell turnover in the human colon

    E-print Network

    mapping has become one of the hottest areas of stem cell research. Cell fate mapping methods used in miceCommentary Methylation patterns and mathematical models reveal dynamics of stem cell turnover. Stem cells are undifferentiated cells, nor- mally residing in a specific location (a niche) within

  2. Myths and Motives behind STEM (Science, Technology, Engineering, and Mathematics) Education and the STEM-Worker Shortage Narrartive

    ERIC Educational Resources Information Center

    Stevenson, Heidi J.

    2014-01-01

    The Business Roundtable (2013) website presents a common narrative in regard to STEM (Science, Technology, Engineering and Mathematics) education, "American students are falling behind in math and science. Fewer and fewer students are pursuing careers in science, technology, engineering and mathematics, and American students are performing at…

  3. Accomplishment in Science, Technology, Engineering, and Mathematics (STEM) and Its Relation to STEM Educational Dose: A 25-Year Longitudinal Study

    ERIC Educational Resources Information Center

    Wai, Jonathan; Lubinski, David; Benbow, Camilla P.; Steiger, James H.

    2010-01-01

    Two studies examined the relationship between precollegiate advanced/enriched educational experiences and adult accomplishments in science, technology, engineering, and mathematics (STEM). In Study 1, 1,467 13-year-olds were identified as mathematically talented on the basis of scores [greater than or equal to] 500 (top 0.5%) on the math section…

  4. Texas Academy of Mathematics and Science: 25 Years of Early College STEM Opportunities

    ERIC Educational Resources Information Center

    Sayler, Michael F.

    2015-01-01

    The University of North Texas's Texas Academy of Mathematics and Science began admitting students to its 2-year early college entrance science, technology, engineering, and mathematics (STEM) program in the fall of 1988. This program provided accelerated entry for top students in Texas in the areas of mathematics and science. Approximately…

  5. Kentucky Trains Parents to Help Schools Bolster STEM Subjects

    ERIC Educational Resources Information Center

    Cavanagh, Sean

    2008-01-01

    Parents from around Kentucky are taking part in an unusual effort to encourage parents to take a more active role in promoting science, technology, engineering, and math (STEM) topics in their local schools. They have joined the Commonwealth Institute for Parent Leadership, which tries to help adults work with teachers and administrators, and…

  6. PLASMA ANTIOXIDANTS IN SUBJECTS PRIOR TO HEMATOPOIETIC STEM CELL TRANSPLANTATION

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Chemo-irradiation induced oxidative damage to vascular endothelium may contribute to pulmonary complications of hematopoietic stem cell transplantation (HSCT). We compared antioxidants, markers of oxidative stress and the ability of plasma to handle an oxidative stress in plasma or serum from 24 sub...

  7. The Impact of STEM PBL Teacher Professional Development on Student Mathematics Achievement in High Schools 

    E-print Network

    Han, Sun Young

    2013-05-20

    This dissertation consists of three articles that explore the effect of professional development (PD) on teachers‘ understanding and implementation of Science, Technology, Engineering, and Mathematics (STEM) project based learning (PBL...

  8. careersIN APPLIED MATHEMATICS ...alternatives to academia for STEM majors

    E-print Network

    Maxwell, Bruce D.

    careersIN APPLIED MATHEMATICS ...alternatives to academia for STEM majors Society for Industrial of the design of experiments. · Is ethanol a viable solution for the world's dependence on fossil fuels? Can

  9. The Impact of STEM PBL Teacher Professional Development on Student Mathematics Achievement in High Schools

    E-print Network

    Han, Sun Young

    2013-05-20

    This dissertation consists of three articles that explore the effect of professional development (PD) on teachers‘ understanding and implementation of Science, Technology, Engineering, and Mathematics (STEM) project based learning (PBL...

  10. Accomplishment in Science, Technology, Engineering, and Mathematics (STEM) and Its Relation to STEM Educational Dose: A 25Year Longitudinal Study

    Microsoft Academic Search

    Jonathan Wai; David Lubinski; Camilla P. Benbow; James H. Steiger

    2010-01-01

    Two studies examined the relationship between precollegiate advanced\\/enriched educational experiences and adult accomplishments in science, technology, engineering, and mathematics (STEM). In Study 1, 1,467 13-year-olds were identified as mathematically talented on the basis of scores ? 500 (top 0.5%) on the math section of the Scholastic Assessment Test; subsequently, their developmental trajectories were studied over 25 years. Particular attention was

  11. Eradication of Chronic Myeloid Leukemia Stem Cells: A Novel Mathematical Model Predicts No Therapeutic

    E-print Network

    Eradication of Chronic Myeloid Leukemia Stem Cells: A Novel Mathematical Model Predicts induces complete cytogenetic responses in patients with chronic myeloid leukemia (CML), yet many patients B, Holyoake T, Michor F (2009) Eradication of Chronic Myeloid Leukemia Stem Cells: A Novel

  12. Evaluative research study of a science, technology, engineering and mathematics (STEM) honors program

    Microsoft Academic Search

    Arlene P. Maclin

    2007-01-01

    This research includes a comprehensive evaluation of a full scholarship program at Norfolk State University (NSU), which serves principally African American students in science, technology, engineering and mathematics (STEM) disciplines. African Americans are currently underrepresented in STEM areas. The emphasis of this program, which was initiated in 1985, was developed to encourage African American students to pursue graduate degrees in

  13. Facilitating Collaboration across Science, Technology, Engineering & Mathematics (STEM) Fields in Program Development

    ERIC Educational Resources Information Center

    Ejiwale, James A.

    2014-01-01

    Collaboration plays a major role in interdisciplinary activities among Science, Technology, Engineering & Mathematics (STEM) disciplines or fields. It also affects the relationships among cluster members on the management team. Although effective collaboration does not guarantee success among STEM disciplines, its absence usually assures…

  14. Successful K-12 STEM Education: Identifying Effective Approaches in Science, Technology, Engineering, and Mathematics

    ERIC Educational Resources Information Center

    National Academies Press, 2011

    2011-01-01

    Science, technology, engineering, and mathematics (STEM) are cultural achievements that reflect our humanity, power our economy, and constitute fundamental aspects of our lives as citizens, consumers, parents, and members of the workforce. Providing all students with access to quality education in the STEM disciplines is important to our nation's…

  15. A Pathway to STEM Education: Investigating Pre-Service Mathematics and Science Teachers at Turkish Universities in Terms of Their Understanding of Mathematics Used in Science 

    E-print Network

    Corlu, Mehmet

    2012-07-16

    Reforms in education of Science, Technology, Engineering, and Mathematics (STEM) disciplines have been particularly critical for the economic competitiveness of Turkey. STEM education includes the set of knowledge, skills, ...

  16. Re/Writing the Subject: A Contribution to Post-Structuralist Theory in Mathematics Education

    ERIC Educational Resources Information Center

    Roth, Wolff-Michael

    2012-01-01

    This text, occasioned by a critical reading of "Mathematics Education and Subjectivity" (Brown, "2011") and constituting a response to the book, aims at contributing to the building of (post-structuralist) theory in mathematics education. Its purpose was to re/write two major positions that "Mathematics Education and Subjectivity" articulates:…

  17. Can Parents Influence Children's Mathematics Achievement and Persistence in STEM Careers?

    ERIC Educational Resources Information Center

    Ing, Marsha

    2014-01-01

    This study explores the relationship between parental motivational practices, Children's mathematics achievement trajectories, and persistence in science, technology, engineering, and mathematics (STEM) careers. Nationally representative longitudinal survey data were analyzed using latent growth curve analysis. Findings indicate that…

  18. NSF Scholarships in Science, Technology, Engineering, and Mathematics (S-STEM)

    E-print Network

    NSF Scholarships in Science, Technology, Engineering, and Mathematics (S-STEM) PROGRAM SOLICITATION Information Program Title: NSF Scholarships in Science, Technology, Engineering, and Mathematics (S & Human Resources Division of Undergraduate Education Full Proposal Deadline(s) (due by 5 p.m. proposer

  19. Secondary Students' Perceptions of Assessments in Science, Technology, Engineering, and Mathematics (STEM)

    ERIC Educational Resources Information Center

    Meng, Chew Cheng; Idris, Noraini; Eu, Leong Kwan

    2014-01-01

    The problems of the decreasing enrolment of science students at secondary school level as well as the lagging science and mathematics achievement and literacy of Malaysian secondary students in international assessment studies point to a serious challenge for the government to improve Science, Technology, Engineering and Mathematics (STEM)…

  20. Pure Mathematics provides the logical foundation for the whole subject. It is

    E-print Network

    Schnaufer, Achim

    Pure Mathematics provides the logical foundation for the whole subject. It is concerned in a variety of situations. Our core courses in Pure Mathematics will introduce you to the rigour and precise thinking necessary for its study. Applied Mathematics is concerned with the modelling of a wide range

  1. Mathematical modelling and experiments for the proliferation and differentiation of Drosophila intestinal stem cells II

    Microsoft Academic Search

    Masataka Kuwamura; Kousuke Maeda; Takashi Adachi-Yamada

    2011-01-01

    The Drosophila posterior midgut epithelium mainly consists of intestinal stem cells (ISCs); semi-differentiated cells, i.e. enteroblasts (EBs); and two types of fully differentiated cells, i.e. enteroendocrine cells (EEs) and enterocytes (ECs), which are controlled by signalling pathways. In [M. Kuwamura, K. Maeda, and T. Adachi-Yamada, Mathematical modeling and experiments for the proliferation and differentiation of Drosophila intestinal stem cells I,

  2. Perceived mathematical ability under challenge: a longitudinal perspective on sex segregation among STEM degree fields

    PubMed Central

    Nix, Samantha; Perez-Felkner, Lara; Thomas, Kirby

    2015-01-01

    Students' perceptions of their mathematics ability vary by gender and seem to influence science, technology, engineering, and mathematics (STEM) degree choice. Related, students' perceptions during academic difficulty are increasingly studied in educational psychology, suggesting a link between such perceptions and task persistence. Despite interest in examining the gender disparities in STEM, these concepts have not been considered in tandem. In this manuscript, we investigate how perceived ability under challenge—in particular in mathematics domains—influences entry into the most sex-segregated and mathematics-intensive undergraduate degrees: physics, engineering, mathematics, and computer science (PEMC). Using nationally representative Education Longitudinal Study of 2002 (ELS) data, we estimate the influence of perceived ability under challenging conditions on advanced high school science course taking, selection of an intended STEM major, and specific major type 2 years after high school. Demonstrating the importance of specificity when discussing how gender influences STEM career pathways, the intersecting effects of gender and perceived ability under mathematics challenge were distinct for each scientific major category. Perceived ability under challenge in secondary school varied by gender, and was highly predictive of selecting PEMC and health sciences majors. Notably, women's 12th grade perceptions of their ability under mathematics challenge increased their probability of selecting PEMC majors over and above biology. In addition, gender moderated the effect of growth mindset on students' selection of health science majors. Perceptions of ability under challenge in general and verbal domains also influenced retention in and declaration of certain STEM majors. The implications of these results are discussed, with particular attention to access to advanced scientific coursework in high school and interventions aimed at enhancing young women's perceptions of their ability, in particular in response to the potentially inhibiting influence of stereotype threat on their pathways to scientific degrees. PMID:26113823

  3. Perceived mathematical ability under challenge: a longitudinal perspective on sex segregation among STEM degree fields.

    PubMed

    Nix, Samantha; Perez-Felkner, Lara; Thomas, Kirby

    2015-01-01

    Students' perceptions of their mathematics ability vary by gender and seem to influence science, technology, engineering, and mathematics (STEM) degree choice. Related, students' perceptions during academic difficulty are increasingly studied in educational psychology, suggesting a link between such perceptions and task persistence. Despite interest in examining the gender disparities in STEM, these concepts have not been considered in tandem. In this manuscript, we investigate how perceived ability under challenge-in particular in mathematics domains-influences entry into the most sex-segregated and mathematics-intensive undergraduate degrees: physics, engineering, mathematics, and computer science (PEMC). Using nationally representative Education Longitudinal Study of 2002 (ELS) data, we estimate the influence of perceived ability under challenging conditions on advanced high school science course taking, selection of an intended STEM major, and specific major type 2 years after high school. Demonstrating the importance of specificity when discussing how gender influences STEM career pathways, the intersecting effects of gender and perceived ability under mathematics challenge were distinct for each scientific major category. Perceived ability under challenge in secondary school varied by gender, and was highly predictive of selecting PEMC and health sciences majors. Notably, women's 12th grade perceptions of their ability under mathematics challenge increased their probability of selecting PEMC majors over and above biology. In addition, gender moderated the effect of growth mindset on students' selection of health science majors. Perceptions of ability under challenge in general and verbal domains also influenced retention in and declaration of certain STEM majors. The implications of these results are discussed, with particular attention to access to advanced scientific coursework in high school and interventions aimed at enhancing young women's perceptions of their ability, in particular in response to the potentially inhibiting influence of stereotype threat on their pathways to scientific degrees. PMID:26113823

  4. London Mathematical Society Advancing Mathematics

    E-print Network

    Mottram, Nigel

    , including MPs, Lords, academics, and representatives from a wide range of STEM organisations. We hope and schools ­ in particular on HE in STEM subjects; on A-level reform; and on a Vision for Science activities include publishing journals and books, providing grants to support mathematics and organising

  5. Using Food Science Demonstrations to Engage Students of All Ages in Science, Technology, Engineering, and Mathematics (STEM)

    ERIC Educational Resources Information Center

    Schmidt, Shelly J.; Bohn, Dawn M.; Rasmussen, Aaron J.; Sutherland, Elizabeth A.

    2012-01-01

    The overarching goal of the Science, Technology, Engineering, and Mathematics (STEM) Education Initiative is to foster effective STEM teaching and learning throughout the educational system at the local, state, and national levels, thereby producing science literate citizens and a capable STEM workforce. To contribute to achieving this goal, we…

  6. A Comparison of Postsecondary Science, Technology, Engineering, and Mathematics (STEM) Enrollment for Students With and Without Disabilities

    Microsoft Academic Search

    Ahlam Lee

    2011-01-01

    The author examined enrollment differences at postsecondary institutions between students with and without disabilities in science, technology, engineering, and mathematics (STEM) majors to investigate the extent to which students with disabilities, compared with their counterparts, pursue highly demanded STEM careers that require postsecondary STEM degrees. Using the data extracted from the National Longitudinal Transition Study—2 and the Educational Longitudinal Study

  7. iSTEM: Promoting Fifth Graders' Mathematical Modeling

    ERIC Educational Resources Information Center

    Yanik, H. Bahadir; Karabas, Celil

    2014-01-01

    Modeling requires that people develop representations or procedures to address particular problem situations (Lesh et al. 2000). Mathematical modeling is used to describe essential characteristics of a phenomenon or a situation that one intends to study in the real world through building mathematical objects. This article describes how fifth-grade…

  8. A multicompartment mathematical model of cancer stem cell-driven tumor growth dynamics.

    PubMed

    Weekes, Suzanne L; Barker, Brian; Bober, Sarah; Cisneros, Karina; Cline, Justina; Thompson, Amanda; Hlatky, Lynn; Hahnfeldt, Philip; Enderling, Heiko

    2014-07-01

    Tumors are appreciated to be an intrinsically heterogeneous population of cells with varying proliferation capacities and tumorigenic potentials. As a central tenet of the so-called cancer stem cell hypothesis, most cancer cells have only a limited lifespan, and thus cannot initiate or reinitiate tumors. Longevity and clonogenicity are properties unique to the subpopulation of cancer stem cells. To understand the implications of the population structure suggested by this hypothesis--a hierarchy consisting of cancer stem cells and progeny non-stem cancer cells which experience a reduction in their remaining proliferation capacity per division--we set out to develop a mathematical model for the development of the aggregate population. We show that overall tumor progression rate during the exponential growth phase is identical to the growth rate of the cancer stem cell compartment. Tumors with identical stem cell proportions, however, can have different growth rates, dependent on the proliferation kinetics of all participating cell populations. Analysis of the model revealed that the proliferation potential of non-stem cancer cells is likely to be small to reproduce biologic observations. Furthermore, a single compartment of non-stem cancer cell population may adequately represent population growth dynamics only when the compartment proliferation rate is scaled with the generational hierarchy depth. PMID:24840956

  9. Creating collaborative developmental communities: A pipeline to Science, Technology, Engineering and Mathematics (STEM) education

    Microsoft Academic Search

    I. K. Dabipi; B. J. Dingwall; J. O. Arumala

    2007-01-01

    Creating real change in the number and demographic proportions of students pursuing careers in science, technology, engineering & mathematics (STEM) careers is a task that requires a community effort. It requires the active support and involvement of school systems, industries, governmental agencies like NASA, local communities, institutions of higher education as well as potential employers to create an environment that

  10. University Learning Outcome 11 Social Sciences STEM-ED 210 Knowing and Learning Mathematics and Science

    E-print Network

    Barrash, Warren

    University Learning Outcome 11 ­ Social Sciences STEM-ED 210 Knowing and Learning Mathematics and Science Foundation ULO 11 Criteria Course Learning Outcomes "By the end of this course,each student should be able to..." Assessment Method: Evidence of Student Learning Planned Teaching & Learning Activities

  11. Diversifying Science, Technology, Engineering, and Mathematics (STEM): An Inquiry into Successful Approaches in Chemistry

    ERIC Educational Resources Information Center

    Wilson, Zakiya S.; McGuire, Saundra Y.; Limbach, Patrick A.; Doyle, Michael P.; Marzilli, Luigi G.; Warner, Isiah M.

    2014-01-01

    For many years, the U.S. has underutilized its human resources, as evidenced by the pervasive underrepresentation of several racial and ethnic groups within academia in general and the science, technology, engineering, and mathematics (STEM) disciplines, in particular. To address this underutilization, academic departments within U.S. universities…

  12. STEMing the Tide: Using Ingroup Experts to Inoculate Women's Self-Concept in Science, Technology, Engineering, and Mathematics (STEM)

    Microsoft Academic Search

    Jane G. Stout; Nilanjana Dasgupta; Matthew Hunsinger; Melissa A. McManus

    2011-01-01

    Three studies tested a stereotype inoculation model, which proposed that contact with same-sex experts (advanced peers, professionals, professors) in academic environments involving science, technology, engineering, and mathematics (STEM) enhances women's self-concept in STEM, attitudes toward STEM, and motivation to pursue STEM careers. Two cross-sectional controlled experiments and 1 longitudinal naturalistic study in a calculus class revealed that exposure to female

  13. Analysis the Competences and Contents of "Mathematics and Environmental Exploration" Subject Syllabus for Preparatory Grade

    ERIC Educational Resources Information Center

    Dulama, Maria Eliza; Magda?, Ioana

    2014-01-01

    In this paper, we analyze some aspects related to "Mathematics and Environmental Exploration" subject syllabus for preparatory grade approved by Minister of National Education of Romania. The analysis aim the place of the subject syllabus into the Framework Plan; the syllabus structure and the argumentation of studying this subject; the…

  14. On the Importance of Subject Matter in Mathematics Education: A Conversation with Erich Christian Wittmann

    ERIC Educational Resources Information Center

    Akinwunmi, Kathrin; Höveler, Karina; Schnell, Susanne

    2014-01-01

    Erich Christian Wittmann is one of the primary founders of mathematics education research as an autonomous field of work and research in Germany. The interview presented here reflects on his role in promoting mathematics education as a design science. The interview addresses the following topics: (1) The importance of subject matter in…

  15. "I'm Not a "Maths-Person"!" Reconstituting Mathematical Subjectivities in Aesthetic Teaching Practices

    ERIC Educational Resources Information Center

    Palmer, Anna

    2009-01-01

    In this study I have investigated how alternative ways of teaching mathematics influence and affect Early Childhood Education (ECE) students' attitudes towards maths and how they understand their own subjectivities as more or less mathematical during a 10-week alternative maths course. The investigated course adopts a feminist post-structural…

  16. Mathematics and the Flight from the Feminine: The Discursive Construction of Gendered Subjectivity in Mathematics Textbooks

    ERIC Educational Resources Information Center

    Hottinger, Sara

    2010-01-01

    There is a widespread awareness in the American culture that women do not pursue careers in mathematics-related fields in equal numbers to men. Efforts to address this disparity by reforming mathematics education have met with some success; recent research shows that girls' achievements in mathematics stay on par with those of boys through…

  17. Problem Solving and Creativity and Design: What Influence Do They Have on Girls' Interest in STEM Subject Areas?

    ERIC Educational Resources Information Center

    Cooper, Robyn; Heaverlo, Carol

    2013-01-01

    For girls there is a distinct loss in interest, lack of confidence, and decline in positive attitudes toward STEM subject areas that begins early on in their academic experience and increases with age. According to the National Academy of Engineering, students need to begin associating the possibilities in STEM fields with the need for creativity…

  18. A Pathway to STEM Education: Investigating Pre-Service Mathematics and Science Teachers at Turkish Universities in Terms of Their Understanding of Mathematics Used in Science

    E-print Network

    Corlu, Mehmet

    2012-07-16

    ready to implement STEM education in terms of their integrated teaching knowledge (ITK), teaching self-efficacy beliefs, and attitudes toward mathematics and science integration. The dissertation employed a quantitative research methodology...

  19. Mathematics K-12. Teacher Handbook. North Carolina Competency-Based Curriculum Subject-by-Subject.

    ERIC Educational Resources Information Center

    North Carolina State Dept. of Public Instruction, Raleigh. Instructional Services.

    After the passage of the North Carolina Elementary and Secondary School Reform Act of 1984, curriculum revision began. This handbook provides a detailed and integrated basic course of study for the revised curriculum in mathematics for grades K-12. The philosophy and rationale for the entire curriculum are first discussed, followed by sections on…

  20. Subjectivity and Cultural Adjustment in Mathematics Education: A Response to Wolff-Michael Roth

    ERIC Educational Resources Information Center

    Brown, Tony

    2012-01-01

    In this volume, Wolff-Michael Roth provides a critical but partial reading of Tony Brown's book "Mathematics Education and Subjectivity". The reading contrasts Brown's approach with Roth's own conception of subjectivity as derived from the work of Vygotsky, in which Roth aims to "reunite" psychology and sociology. Brown's book, however, focuses on…

  1. Science, Technology, Engineering, and Mathematics (STEM) Participation Among College Students with an Autism Spectrum Disorder

    PubMed Central

    Wei, Xin; Yu, Jennifer W.; Shattuck, Paul; McCracken, Mary; Blackorby, Jose

    2012-01-01

    Little research has examined the popular belief that individuals with an autism spectrum disorder (ASD) are more likely than the general population to gravitate toward science, technology, engineering, and mathematics (STEM) fields. This study analyzed data from the National Longitudinal Transition Study-2, a nationally representative sample of students with an ASD in special education. Findings suggest that students with an ASD had the highest STEM participation rates although their college enrollment rate was the third lowest among 11 disability categories and students in the general population. Disproportionate postsecondary enrollment and STEM participation by gender, family income, and mental functioning skills were found for young adults with an ASD. Educational policy implications are discussed. PMID:23114569

  2. Science, technology, engineering, and mathematics (STEM) participation among college students with an autism spectrum disorder.

    PubMed

    Wei, Xin; Yu, Jennifer W; Shattuck, Paul; McCracken, Mary; Blackorby, Jose

    2013-07-01

    Little research has examined the popular belief that individuals with an autism spectrum disorder (ASD) are more likely than the general population to gravitate toward science, technology, engineering, and mathematics (STEM) fields. This study analyzed data from the National Longitudinal Transition Study-2, a nationally representative sample of students with an ASD in special education. Findings suggest that students with an ASD had the highest STEM participation rates although their college enrollment rate was the third lowest among 11 disability categories and students in the general population. Disproportionate postsecondary enrollment and STEM participation by gender, family income, and mental functioning skills were found for young adults with an ASD. Educational policy implications are discussed. PMID:23114569

  3. Role of Scholarships in Improving Success Rates of Undergraduate Science, Technology, Engineering and Mathematics (STEM) Majors

    Microsoft Academic Search

    Junalyn Navarra-Madsen; Rodney A. Bales; DiAnna L. Hynds

    2010-01-01

    Based on the Bureau of Labour and Statistics (BLS) employment projections, more and more technology-driven jobs will be created and, therefore, demand for highly-skilled technologically-trained professionals will increase. What is being done in the United States (US) to ensure a steady flow in the dwindling pipeline of Science, Technology, Engineering and Mathematics (STEM) workforce? The US has a number of

  4. Stability and Hopf bifurcation in a mathematical model of pluripotent stem cell dynamics

    E-print Network

    Adimy, Mostafa; Ruan, Shigui; 10.1016/j.nonrwa.2004.12.010

    2009-01-01

    We study a mathematical model describing the dynamics of a pluripotent stem cell population involved in the blood production process in the bone marrow. This model is a differential equation with a time delay. The delay describes the cell cycle duration and is uniformly distributed on an interval. We obtain stability conditions independent of the delay. We also show that the distributed delay can destabilize the entire system. In particularly, it is shown that Hopf bifurcations can occur.

  5. Mathematical modelling of electrotonic interaction between stem cell-derived cardiomyocytes and fibroblasts

    Microsoft Academic Search

    M. Paci; L. Sartiani; M. E. Jaconi; E. Cerbai; S. Severi

    2010-01-01

    Human embryonic stem cell-derived cardiomyocytes (hES-CMs) represent a promising tool for cell therapy and drug screening. We developed a hES-CM mathematical model based on data acquired with electrophysiological and RT-PCR techniques. Coupling with modelled fibroblasts was assessed too. hES-CM model reproduced satisfactorily most of the action potential (AP) features. Coupling with fibroblasts shows an increment of slope of diastolic depolarization

  6. Attitudes towards Science, Technology, Engineering and Mathematics (STEM) in a Project-Based Learning (PjBL) Environment

    ERIC Educational Resources Information Center

    Tseng, Kuo-Hung; Chang, Chi-Cheng; Lou, Shi-Jer; Chen, Wen-Ping

    2013-01-01

    Many scholars claimed the integration of science, technology, engineering and mathematics (STEM) education is beneficial to the national economy and teachers and institutes have been working to develop integrated education programs. This study examined a project-based learning (PjBL) activity that integrated STEM using survey and interview…

  7. A comparative case study of the characteristics of science, technology, engineering, and mathematics (STEM) focused high schools

    Microsoft Academic Search

    Catherine Elizabeth Scott

    2009-01-01

    This study examined the characteristics of 10 science, technology, engineering, and mathematics (STEM) focused high schools. A comparative case designed was used to identify key components of STEM school designs. Schools were selected from various regions across the United States. Data collected included websites, national statistics database, standardized test scores, interviews and published articles. Results from this study indicate that

  8. An Investigation of Science, Technology, Engineering and Mathematics (STEM) Focused High Schools in the U.S.

    ERIC Educational Resources Information Center

    Scott, Catherine

    2012-01-01

    This study examined the characteristics of 10 science, technology, engineering and mathematics (STEM) focused high schools that were selected from various regions across the United States. In an effort to better prepare students for careers in STEM fields, many schools have been designed and are currently operational, while even more are in the…

  9. Assuring the U.S. Department of Defense a Strong Science, Technology, Engineering, and Mathematics (STEM) Workforce

    ERIC Educational Resources Information Center

    National Academies Press, 2012

    2012-01-01

    The ability of the nation's military to prevail during future conflicts, and to fulfill its humanitarian and other missions, depends on continued advances in the nation's technology base. A workforce with robust Science, Technology, Engineering and Mathematics (STEM) capabilities is critical to sustaining U.S. preeminence. Today, however, the STEM

  10. Fullness of Life as Minimal Unit: Science, Technology, Engineering, and Mathematics (STEM) Learning across the Life Span

    ERIC Educational Resources Information Center

    Roth, Wolff-Michael; Van Eijck, Michiel

    2010-01-01

    Challenged by a National Science Foundation-funded conference, 2020 Vision: The Next Generation of STEM Learning Research, in which participants were asked to recognize science, technology, engineering, and mathematics (STEM) learning as lifelong, life-wide, and life-deep, we draw upon 20 years of research across the lifespan to propose a new way…

  11. Student and High-School Characteristics Related to Completing a Science, Technology, Engineering or Mathematics (STEM) Major in College

    ERIC Educational Resources Information Center

    LeBeau, Brandon; Harwell, Michael; Monson, Debra; Dupuis, Danielle; Medhanie, Amanuel; Post, Thomas R.

    2012-01-01

    Background: The importance of increasing the number of US college students completing degrees in science, technology, engineering or mathematics (STEM) has prompted calls for research to provide a better understanding of factors related to student participation in these majors, including the impact of a student's high-school mathematics

  12. Science, Technology, Engineering, and Mathematics (STEM) Pathways: High School Science and Math Coursework and Postsecondary Degree Attainment

    ERIC Educational Resources Information Center

    Tyson, Will; Lee, Reginald; Borman, Kathryn M.; Hanson, Mary Ann

    2007-01-01

    This article examines how high school science and mathematics course-taking creates pathways toward future baccalaureate degree attainment in science, technology, engineering, and mathematics (STEM) majors in Florida 4-year universities using Burkam and Lee's (2003) course-taking categories developed using national student datasets. This study…

  13. Persistence in STEM: An investigation of the relationship between high school experiences in science and mathematics and college degree completion in STEM fields

    NASA Astrophysics Data System (ADS)

    Maltese, Adam V.

    While the number of Bachelor's degrees awarded annually has nearly tripled over the past 40 years (NSF, 2008), the same cannot be said for degrees in the STEM (science, technology, engineering and mathematics) fields. The Bureau of Labor Statistics projects that by the year 2014 the combination of new positions and retirements will lead to 2 million job openings in STEM (BLS, 2005). Thus, the research questions I sought to answer with this study were: (1)What are the most common enrollment patterns for students who enter into and exit from the STEM pipeline during high school and college? (2) Controlling for differences in student background and early interest in STEM careers, what are the high school science and mathematics classroom experiences that characterize student completion of a college major in STEM? Using data from NELS:88 I analyzed descriptive statistics and completed logistic regressions to gain an understanding of factors related to student persistence in STEM. Approximately 4700 students with transcript records and who participated in all survey rounds were included in the analyses. The results of the descriptive analysis demonstrated that most students who went on to complete majors in STEM completed at least three or four years of STEM courses during high school, and enrolled in advanced high school mathematics and science courses at higher rates. At almost every pipeline checkpoint indicators of the level of coursework and achievement were significant in predicting student completion of a STEM degree. The results also support previous research that showed demographic variables have little effect on persistence once the sample is limited to those who have the intrinsic ability and desire to complete a college degree. The most significant finding is that measures of student interest and engagement in science and mathematics were significant in predicting completion of a STEM degree, above and beyond the effects of course enrollment and performance. A final analysis, which involved the comparison of descriptive statistics for students who switched into and out of the STEM pipeline during high school, suggested that attitudes toward mathematics and science play a major role in choices regarding pipeline persistence.

  14. NSF Scholarships in Science, Technology, Engineering, and Mathematics (S-STEM) This program makes grants to institutions of higher education to support scholarships for academically

    E-print Network

    Berdichevsky, Victor

    grants to institutions of higher education to support scholarships for academically talented studentsNSF Scholarships in Science, Technology, Engineering, and Mathematics (S-STEM) This program makes or mathematics disciplines. Grantee institutions are responsible for selecting scholarship recipients, reporting

  15. Is Knowing Another Language as Important as Knowing "Core" Subjects Like Mathematics or Science

    ERIC Educational Resources Information Center

    Kouritzin, Sandra G.

    2012-01-01

    This article explores, through interview data with 125 respondents in Canada, whether the study of foreign languages can be considered as important as the study of the "core" STEMM (science, technology, engineering, mathematics, medicine) subjects in school and university curricula. Five categories of interviewees, including those involved and not…

  16. Addressing Prospective Elementary Teachers' Mathematics Subject Matter Knowledge through Action Research

    ERIC Educational Resources Information Center

    Hourigan, Mairéad; O'Donoghue, John

    2015-01-01

    There is international dissatisfaction regarding the standard of mathematics subject matter knowledge (MSMK) evident among both qualified and prospective elementary teachers. Ireland is no exception. Following increasing anecdotal evidence of prospective elementary teachers in one Irish College of Education (provider of initial teacher education…

  17. A Mathematical-Biological Joint Effort to Investigate the Tumor-Initiating Ability of Cancer Stem Cells

    PubMed Central

    Fornari, Chiara; Beccuti, Marco; Lanzardo, Stefania; Conti, Laura; Balbo, Gianfranco; Cavallo, Federica; Calogero, Raffaele A.; Cordero, Francesca

    2014-01-01

    The involvement of Cancer Stem Cells (CSCs) in tumor progression and tumor recurrence is one of the most studied subjects in current cancer research. The CSC hypothesis states that cancer cell populations are characterized by a hierarchical structure that affects cancer progression. Due to the complex dynamics involving CSCs and the other cancer cell subpopulations, a robust theory explaining their action has not been established yet. Some indications can be obtained by combining mathematical modeling and experimental data to understand tumor dynamics and to generate new experimental hypotheses. Here, we present a model describing the initial phase of ErbB2+ mammary cancer progression, which arises from a joint effort combing mathematical modeling and cancer biology. The proposed model represents a new approach to investigate the CSC-driven tumorigenesis and to analyze the relations among crucial events involving cancer cell subpopulations. Using in vivo and in vitro data we tuned the model to reproduce the initial dynamics of cancer growth, and we used its solution to characterize observed cancer progression with respect to mutual CSC and progenitor cell variation. The model was also used to investigate which association occurs among cell phenotypes when specific cell markers are considered. Finally, we found various correlations among model parameters which cannot be directly inferred from the available biological data and these dependencies were used to characterize the dynamics of cancer subpopulations during the initial phase of ErbB2+ mammary cancer progression. PMID:25184361

  18. U of M students and staff share the excitement of STEM subjects with middle and high school students

    E-print Network

    Amin, S. Massoud

    U of M students and staff share the excitement of STEM subjects with middle and high school students Department of Electrical and Computer Engineering Summer 2014, Vol. XIV, Issue 1Signals coordinator, travels once a month with the BRIDGE student team to the White Earth Reservation ­ Circle of Life

  19. Expressive talking among caregivers of hematopoietic stem cell transplant survivors: acceptability and concurrent subjective, objective and physiologic indicators of emotion

    Microsoft Academic Search

    Shelby L. Langer; Thomas H. Kelly; Barry E. Storer; Suzanne P. Hall; Heather G. Lucas; Karen L. Syrjala

    2012-01-01

    This study sought to examine the effects of an expressive talking intervention for 58 caregiving partners of hematopoietic stem cell transplant survivors, persons known to experience distress. Caregivers were randomly assigned to a 3-session emotional expression (EE) or control condition. Subjective, objective and physiologic indicators of emotion were assessed. Relative to controls, EE participants experienced more negative emotion, uttered more

  20. Attitudes towards science, technology, engineering and mathematics (STEM) in a project-based learning (PjBL) environment

    Microsoft Academic Search

    Kuo-Hung Tseng; Chi-Cheng Chang; Shi-Jer Lou; Wen-Ping Chen

    Many scholars claimed the integration of science, technology, engineering and mathematics (STEM) education is beneficial to\\u000a the national economy and teachers and institutes have been working to develop integrated education programs. This study examined\\u000a a project-based learning (PjBL) activity that integrated STEM using survey and interview methods. The participants were 30\\u000a freshmen with engineering related backgrounds from five institutes of

  1. Student and high-school characteristics related to completing a science, technology, engineering or mathematics (STEM) major in college

    Microsoft Academic Search

    Brandon LeBeau; Michael Harwell; Debra Monson; Danielle Dupuis; Amanuel Medhanie; Thomas R. Post

    2012-01-01

    Background: The importance of increasing the number of US college students completing degrees in science, technology, engineering or mathematics (STEM) has prompted calls for research to provide a better understanding of factors related to student participation in these majors, including the impact of a student’s high-school mathematics curriculum.Purpose: This study examines the relationship between various student and high-school characteristics and

  2. Science, Technology, Engineering, and Mathematics (STEM) Pathways: High School Science and Math Coursework and Postsecondary Degree Attainment

    Microsoft Academic Search

    Will Tyson; Reginald Lee; Kathryn M. Borman; Mary Ann Hanson

    2007-01-01

    This article examines how high school science and mathematics course-taking creates pathways toward future baccalaureate degree attainment in science, technology, engineering, and mathematics (STEM) majors in Florida 4-year universities using Burkam and Lee's (2003) course-taking categories developed using national student datasets. This study finds that even though women, overall, complete high-level courses, they do not complete the highest level science

  3. Wellcome Trust SUBMISSION OF EVIDENCE Wellcome Trust response to Higher Education in STEM Subjects

    E-print Network

    Rambaut, Andrew

    . It is important that actions to improve the STEM pipeline are consistent and well integrated across schools by the Wellcome Trust March 2012 Key Points 1. In addition to providing a pipeline of graduates for careers. Actions are required at all the stages of the education pipeline covered by this inquiry. 4. The UK STEM

  4. A Comprehensive Approach to Fostering the Next Generation of Science, Technology, Engineering, and Mathematics (STEM) Education Leaders

    Microsoft Academic Search

    Lynn D. Dierking

    2010-01-01

    This paper describes an innovative education program launched in 2004 by Oregon State University Science and Mathematics Education Department, with leadership from Oregon Sea Grant, and funding from NOAA. Program development is described as well as the impact of it on participants. The program represents one vision for how to transform research and education practice to better support lifelong STEM

  5. STEM crisis or STEM surplus?

    E-print Network

    Xue, Yi, S.M. Massachusetts Institute of Technology

    2014-01-01

    The science, technology, engineering, and mathematics (STEM) workforce is a crucial driver of the U.S. economy. Over the last decade, there has been significant concern regarding the adequacy of the supply of STEM workers ...

  6. Middle-Skill STEM State Policy Framework

    ERIC Educational Resources Information Center

    Rosenblum, Ian; Kazis, Richard

    2014-01-01

    The sector of the economy frequently referred to as STEM (Science, Technology, Engineering and Mathematics) is the subject of much national interest and debate. While there is general consensus across various stakeholders such as policymakers, educators, and industry that STEM education and careers are essential to maintaining an innovative and…

  7. Stems

    NSDL National Science Digital Library

    Olivia Worland (Purdue University; Biological Sciences)

    2008-06-03

    Some mature plants can produce new plants by cutting a piece of stem off of the original plant. Most members of the mint family and ivy family can do this readily. The new plant will grow its own root system.

  8. Comparison of infrapatellar and subcutaneous adipose tissue stromal vascular fraction and stromal/stem cells in osteoarthritic subjects.

    PubMed

    Pires de Carvalho, Pedro; Hamel, Katie M; Duarte, Robert; King, Andrew G S; Haque, Masudul; Dietrich, Marilyn A; Wu, Xiying; Shah, Forum; Burk, David; Reis, Rui L; Rood, Jennifer; Zhang, Ping; Lopez, Mandi; Gimble, Jeffrey M; Dasa, Vinod

    2014-10-01

    Since inflammatory mechanisms have been postulated to link obesity to osteoarthritis, the current study evaluated the ratio of immune cells to multipotent stromal cells within the infrapatellar fat pad (IPFP) and subcutaneous adipose tissue (SQ) of the knee; each depot has potential as a source of regenerative cells. The immunophenotypes of stromal vascular fraction (SVF) and adipose-derived stem cells (ASCs) of the IPFP and SQ were determined in tissues from osteoarthritic subjects (n = 7) undergoing total knee replacement. Based on a subset of surface antigens, the immunophenotype of ASCs from SQ of OA subjects was not significantly different from that of relatively healthy and leaner subjects undergoing elective liposuction surgery. Flow-cytometry comparison of SVF cell populations in the IPFP of OA subjects resembled those within the subject's own matched SQ, with the exception of the endothelial marker CD31(+) , which was significantly greater in cells from SQ. In the OA subjects, lower numbers of capillary-like structures and higher numbers of stromal and alkaline phosphatase colony-forming units in the IPFP vs SQ were consistent with this finding; however, ASCs from both depots in OA subjects exhibited comparable adipogenic and osteogenic differentiation potential. Thus, the IPFP contains an ASC and immune cell population similar to that of donor-matched SQ, making it an alternative ASC source for tissue regeneration. Further studies will be needed to determine whether IPFP immune cell infiltrates play an aetiological role in osteoarthritis equivalent to that shown in diabetes associated with obesity. PMID:22807102

  9. Nutraceutical augmentation of circulating endothelial progenitor cells and hematopoietic stem cells in human subjects

    Microsoft Academic Search

    Nina A Mikirova; James A Jackson; Ron Hunninghake; Julian Kenyon; Kyle WH Chan; Cathy A Swindlehurst; Boris Minev; Amit N Patel; Michael P Murphy; Leonard Smith; Famela Ramos; Thomas E Ichim; Neil H Riordan

    2010-01-01

    The medical significance of circulating endothelial or hematopoietic progenitors is becoming increasing recognized. While therapeutic augmentation of circulating progenitor cells using G-CSF has resulted in promising preclinical and early clinical data for several degenerative conditions, this approach is limited by cost and inability to perform chronic administration. Stem-Kine is a food supplement that was previously reported to augment circulating EPC

  10. The View from Schools on Provision of Careers Information, Advice and Guidance in STEM Subjects

    ERIC Educational Resources Information Center

    Collinson, Gill

    2014-01-01

    This article explores the recent history of careers information, advice and guidance (IAG) and how it has been shaped by successive government policies and initiatives. It looks at the impact of these initiatives, particularly how they have influenced students' attitudes to STEM related careers. It also looks at recommendations for…

  11. Snow snakes and science agency: Empowering American Indian students through a culturally-based science, technology, engineering, and mathematics (STEM) curriculum

    Microsoft Academic Search

    Brant Gregory Miller

    2010-01-01

    Mainstream curricula have struggled to provide American Indian students with meaningful learning experiences. This research project studied a novel approach to engaging students with science, technology, engineering, and mathematics (STEM) content through a culturally-based context. The traditional American Indian game of Snow Snakes (shushumeg in Ojibwe) presented a highly engaging context for delivering STEM content. Through the engaging context of

  12. Understanding the Doctoral Experience of Asian International Students in the Science, Technology, Engineering, and Mathematics (STEM) Fields: An Exploration of One Institutional Context

    Microsoft Academic Search

    Tam Le; Susan K. Gardner

    2010-01-01

    In this study, we explored the experience of Asian international doctoral students in the Science, Technology, Engineering, and Mathematics (STEM) fields at one research-extensive university. We found that Asian international doctoral students in the STEM fields at this institution were often isolated from their peers and faculty, faced an array of issues including the lack of funding, the choice of

  13. Understanding the Doctoral Experience of Asian International Students in the Science, Technology, Engineering, and Mathematics (STEM) Fields: An Exploration of One Institutional Context

    Microsoft Academic Search

    Tam Le; Susan K. Gardner

    2010-01-01

    : In this study, we explored the experience of Asian international doctoral students in the Science, Technology, Engineering, and Mathematics (STEM) fields at one research-extensive university. We found that Asian international doctoral students in the STEM fields at this institution were often isolated from their peers and faculty, faced an array of issues including the lack of funding, the choice

  14. AccessSTEM: Building the Capacity of Washington and Oregon Teachers to Include Students with Disabilities in Science, Technology, Engineering, and Mathematics Courses

    ERIC Educational Resources Information Center

    DO-IT, 2006

    2006-01-01

    Two "AccessSTEM Capacity-Building Institutes" ("CBIs") were conducted by the Northwest Alliance for Access to Science, Technology, Engineering, and Mathematics ("AccessSTEM"). Directed at the University of Washington and funded by the Disabilities Research in Education program at the National Science Foundation (NSF) (cooperative agreement…

  15. An Examination of the Effects of Collaborative Scientific Visualization via Model-Based Reasoning on Science, Technology, Engineering, and Mathematics (STEM) Learning within an Immersive 3D World

    ERIC Educational Resources Information Center

    Soleimani, Ali

    2013-01-01

    Immersive 3D worlds can be designed to effectively engage students in peer-to-peer collaborative learning activities, supported by scientific visualization, to help with understanding complex concepts associated with learning science, technology, engineering, and mathematics (STEM). Previous research studies have shown STEM learning benefits…

  16. A Case Study of an Academia-Industry Partnership to Meet the Education and Training Needs in a Science, Technology, Engineering & Mathematics (STEM) Field

    ERIC Educational Resources Information Center

    Richardson, Joseph Carl

    2013-01-01

    The purpose of this case study is to provide a description of the characteristics of an academia-industry partnership that works together with industry to meet the education and training needs in a Science, Technology, Engineering, and Mathematics (STEM) field. After the launch of Sputnik in 1957, U.S. pursued efforts to compete in STEM fields on…

  17. Expressive talking among caregivers of hematopoietic stem cell transplant survivors: acceptability and concurrent subjective, objective and physiologic indicators of emotion

    PubMed Central

    Langer, Shelby L.; Kelly, Thomas H.; Storer, Barry E.; Hall, Suzanne P.; Lucas, Heather G.; Syrjala, Karen L.

    2013-01-01

    This study sought to examine the effects of an expressive talking intervention for 58 caregiving partners of hematopoietic stem cell transplant survivors, persons known to experience distress. Caregivers were randomly assigned to a 3-session emotional expression (EE) or control condition. Subjective, objective and physiologic indicators of emotion were assessed. Relative to controls, EE participants experienced more negative emotion, uttered more negative emotion words, and perceived the exercises as more helpful and meaningful. The trajectory of skin conductance and the use of cognitive mechanism words increased across EE sessions, suggesting sustained emotional engagement. Future research is warranted to determine the optimal dose and timing of EE for this population. PMID:22571245

  18. Using Hidden Markov Models to Determine Changes in Subject Data over Time, Studying the Immunoregulatory effect of Mesenchymal Stem Cells

    PubMed Central

    Black, Edgar F.; Marini, Luigi; Vaidya, Ashwini; Berman, Dora; Willman, Melissa; Salomon, Dan; Bartholomew, Amelia; Kenyon, Norma; McHenry, Kenton

    2015-01-01

    A novel application of Hidden Markov Models is used to help research intended to test the immunuregulatory effects of mesenchymal stem cells in a cynomolgus monkey model of islet transplantation. The Hidden Markov Model, an unsupervised learning data mining technique, is used to automatically determine the postoperative day (POD) corresponding to a decrease of graft function, a possible sign of transplant rejection, on nonhuman primates after isolated islet cell transplant. Currently, decrease of graft function is being determined solely on experts’ judgment. Further, information gathered from the evaluation of construted Hidden Markov Models is used as part of a clustering method to aggregate the nonhuman subjects into groups or clusters with the objective of finding similarities that could potentially help predict the health outcome of subjects undergoing postoperative care. Results on expert labeled data show the HMM to be accurate 60% of the time. Clusters based on the HMMs further suggest a possible correspondence between donor haplotypes matching and loss of function outcomes.

  19. Building a Community of Scholars: One University's Story of Students Engaged in Learning Science, Mathematics, and Engineering through a NSF S-STEM Grant

    ERIC Educational Resources Information Center

    Kalevitch, Maria; Maurer, Cheryl; Badger, Paul; Holdan, Greg; Iannelli, Joe; Sirinterlikci, Arif; Semich, George; Bernauer, James

    2012-01-01

    The School of Engineering, Mathematics, and Science (SEMS) at Robert Morris University (RMU) was awarded a five-year grant from the National Science Foundation (NSF) to fund scholarships to 21 academically talented but financially challenged students majoring in the disciplines of science, technology, engineering, and mathematics (STEM). Each…

  20. Subject: Mathematics in Finance at NYU-Courant and Financial Engineering at NYU-Poly Several of you have voiced concerns about employers' ability to distinguish between the Mathematics in

    E-print Network

    Aronov, Boris

    markets, computational finance, risk finance and technology and algorithmic financeMEMO Subject: Mathematics in Finance at NYU-Courant and Financial employers' ability to distinguish between the Mathematics in Finance Masters program

  1. Integration and Exploitation of Advanced Visualization and Data Technologies to Teach STEM Subjects

    NASA Astrophysics Data System (ADS)

    Brandon, M. A.; Garrow, K. H.

    2014-12-01

    We live in an age where the volume of content available online to the general public is staggering. Integration of data from new technologies gives us amazing educational opportunities when appropriate narratives are provided. We prepared a distance learning credit bearing module that showcased many currently available data sets and state of the art technologies. It has been completed by many thousands of students with good feedback. Module highlights were the wide ranging and varied online activities which taught a wide range of STEM content. For example: it is well known that on Captain Scott's Terra Nova Expedition 1910-13, three researchers completed the "the worst journey in the world" to study emperor penguins. Using their primary records and clips from location filmed television documentaries we can tell their story and the reasons why it was important. However using state of the art content we can go much further. Using satellite data students can trace the path the researchers took and observe the penguin colony that they studied. Linking to modern Open Access literature students learn how they can estimate the numbers of animals in this and similar locations. Then by linking to freely available data from Antarctic Automatic Weather Stations students can learn quantitatively about the climatic conditions the animals are enduring in real time. They can then download and compare this with the regional climatic record to see if their observations are what could be expected. By considering the environment the penguins live in students can be taught about the evolutionary and behavioural adaptations the animals have undergone to survive. In this one activity we can teach a wide range of key learning points in an engaging and coherent way. It opened some students' eyes to the range of possibilities available to learn about our, and other planets. The addition and integration of new state of the art techniques and data sets only increases the opportunities to teach STEM in ways that truly grab attention.

  2. The London Mathematical Society is incorporated under a Royal Charter and is a Charity registered with the Charity Commissioners, registered number: 252660

    E-print Network

    Mitchener, Paul

    mathematics education. Science lessons and mathematics lessons are distinct, involving separate departments numeracy--is highly valued across other STEM subjects and the workplace as a whole. Yours faithfully

  3. Mathematical model of adult stem cell regeneration with cross-talk between genetic and epigenetic regulation

    PubMed Central

    Lei, Jinzhi; Levin, Simon A.; Nie, Qing

    2014-01-01

    Adult stem cells, which exist throughout the body, multiply by cell division to replenish dying cells or to promote regeneration to repair damaged tissues. To perform these functions during the lifetime of organs or tissues, stem cells need to maintain their populations in a faithful distribution of their epigenetic states, which are susceptible to stochastic fluctuations during each cell division, unexpected injury, and potential genetic mutations that occur during many cell divisions. However, it remains unclear how the three processes of differentiation, proliferation, and apoptosis in regulating stem cells collectively manage these challenging tasks. Here, without considering molecular details, we propose a genetic optimal control model for adult stem cell regeneration that includes the three fundamental processes, along with cell division and adaptation based on differential fitnesses of phenotypes. In the model, stem cells with a distribution of epigenetic states are required to maximize expected performance after each cell division. We show that heterogeneous proliferation that depends on the epigenetic states of stem cells can improve the maintenance of stem cell distributions to create balanced populations. A control strategy during each cell division leads to a feedback mechanism involving heterogeneous proliferation that can accelerate regeneration with less fluctuation in the stem cell population. When mutation is allowed, apoptosis evolves to maximize the performance during homeostasis after multiple cell divisions. The overall results highlight the importance of cross-talk between genetic and epigenetic regulation and the performance objectives during homeostasis in shaping a desirable heterogeneous distribution of stem cells in epigenetic states. PMID:24501127

  4. Group by Subject or by Ability? Tertiary Mathematics for Engineering Students

    ERIC Educational Resources Information Center

    Plank, Michael; James, Alex; Hannah, John

    2011-01-01

    The mathematics topics taught to engineering students at university are ostensibly no different to those taught to mathematics majors, so should these students be taught together or separately? Should engineering students be segregated by ability in their mathematics classes? This study analyses the grades of over 1000 engineering students, and…

  5. Middle-Skill STEM State Policy Framework. Executive Summary

    ERIC Educational Resources Information Center

    Rosenblum, Ian; Kazis, Richard

    2014-01-01

    The sector of the economy frequently referred to as STEM (Science, Technology, Engineering and Mathematics) is the subject of much national interest and debate. While there is general consensus across various stakeholders such as policymakers, educators, and industry that STEM education and careers are essential to maintaining an innovative and…

  6. Engaging All Students in the Pursuit of STEM Careers

    ERIC Educational Resources Information Center

    Dou, Remy; Gibbs, Kenneth D., Jr.

    2013-01-01

    The rapid population growth of under-represented minority groups and the continued under-utilisation of women mean that future growth in the domestic science, technology, engineering and mathematics (STEM) workforce is linked to greater diversity. Subject-matter mastery is important but insufficient for a student to pursue a STEM profession --…

  7. Gender and ethnic differences in precollege mathematics coursework related to science, technology, engineering, and mathematics (STEM) pathways

    Microsoft Academic Search

    Sukkyung You

    2012-01-01

    In 2004, the pattern in academic pathways for high school students in the USA showed that students were completing more demanding mathematics courses. Despite the upward pattern in advanced-level mathematics course-taking, disparities among racial\\/ethnic groups persisted between 1982 and 2004. Using data from the Education Longitudinal Study of 2002 (ELS: 2002; Ingels et al., 2007), the current study sought to

  8. Using PISA to Stimulate STEM Teacher Professional Learning in the United States: The Case of Mathematics

    ERIC Educational Resources Information Center

    Silver, Edward A.; Snider, Rachel B.

    2014-01-01

    Contemporary interest in STEM education is fueled, in part, by the poor performance of U.S. students on national and international assessments. According to a recent National Research Council (2011) report on STEM education in the United States, the National Assessment of Educational Progress (NAEP) indicates that approximately 75% of U.S. 8th…

  9. Supporting STEM in Schools and Colleges in England: The Role of Research

    ERIC Educational Resources Information Center

    Hoyles, Celia; Reiss, Michael; Tough, Sarah

    2011-01-01

    STEM is the acronym used in England for science, technology, engineering and mathematics. STEM subjects are a central plank in developing the UK's skills base. Specialist knowledge in these subjects not only underpins many high-tech sectors--such as IT and engineering--but is also important for creativity and developing new ideas. This report…

  10. A versatile mathematical work-flow to explore how Cancer Stem Cell fate influences tumor progression

    PubMed Central

    2015-01-01

    Background Nowadays multidisciplinary approaches combining mathematical models with experimental assays are becoming relevant for the study of biological systems. Indeed, in cancer research multidisciplinary approaches are successfully used to understand the crucial aspects implicated in tumor growth. In particular, the Cancer Stem Cell (CSC) biology represents an area particularly suited to be studied through multidisciplinary approaches, and modeling has significantly contributed to pinpoint the crucial aspects implicated in this theory. More generally, to acquire new insights on a biological system it is necessary to have an accurate description of the phenomenon, such that making accurate predictions on its future behaviors becomes more likely. In this context, the identification of the parameters influencing model dynamics can be advantageous to increase model accuracy and to provide hints in designing wet experiments. Different techniques, ranging from statistical methods to analytical studies, have been developed. Their applications depend on case-specific aspects, such as the availability and quality of experimental data, and the dimension of the parameter space. Results The study of a new model on the CSC-based tumor progression has been the motivation to design a new work-flow that helps to characterize possible system dynamics and to identify those parameters influencing such behaviors. In detail, we extended our recent model on CSC-dynamics creating a new system capable of describing tumor growth during the different stages of cancer progression. Indeed, tumor cells appear to progress through lineage stages like those of normal tissues, being their division auto-regulated by internal feedback mechanisms. These new features have introduced some non-linearities in the model, making it more difficult to be studied by solely analytical techniques. Our new work-flow, based on statistical methods, was used to identify the parameters which influence the tumor growth. The effectiveness of the presented work-flow was firstly verified on two well known models and then applied to investigate our extended CSC model. Conclusions We propose a new work-flow to study in a practical and informative way complex systems, allowing an easy identification, interpretation, and visualization of the key model parameters. Our methodology is useful to investigate possible model behaviors and to establish factors driving model dynamics. Analyzing our new CSC model guided by the proposed work-flow, we found that the deregulation of CSC asymmetric proliferation contributes to cancer initiation, in accordance with several experimental evidences. Specifically, model results indicated that the probability of CSC symmetric proliferation is responsible of a switching-like behavior which discriminates between tumorigenesis and unsustainable tumor growth. PMID:26050594

  11. Constructions of Mathematicians in Popular Culture and Learners' Narratives: A Study of Mathematical and Non-Mathematical Subjectivities

    ERIC Educational Resources Information Center

    Moreau, Marie-Pierre; Mendick, Heather; Epstein, Debbie

    2010-01-01

    In this paper, based on a project funded by the UK Economic and Social Research Council considering how people position themselves in relation to popular representations of mathematics and mathematicians, we explore constructions of mathematicians in popular culture and the ways learners make meanings from these. Drawing on an analysis of popular…

  12. Science, Technology, Engineering, and Mathematics (STEM) career attractiveness system dynamics modeling.

    SciTech Connect

    Kelic, Andjelka; Zagonel, Aldo A.

    2008-12-01

    A system dynamics model was developed in response to the apparent decline in STEM candidates in the United States and a pending shortage. The model explores the attractiveness of STEM and STEM careers focusing on employers and the workforce. Policies such as boosting STEM literacy, lifting the H-1B visa cap, limiting the offshoring of jobs, and maintaining training are explored as possible solutions. The system is complex, with many feedbacks and long time delays, so solutions that focus on a single point of the system are not effective and cannot solve the problem. A deeper understanding of parts of the system that have not been explored to date is necessary to find a workable solution.

  13. Beginning Mathematics Teachers' Beliefs of Subject Matter and Instructional Actions Documented over Time

    ERIC Educational Resources Information Center

    Marbach-Ad, Gili; McGinnis, J. Randy

    2009-01-01

    In this study we report the results of survey research that collected responses of an identical sample (31 beginning mathematics and science teachers, elementary and middle school level) that graduated from a reform-based mathematics and science teacher preparation program, the Maryland Collaborative for Teacher Preparation (MCTP). Our aim was to…

  14. Conflicts in Developing an Elementary STEM Magnet School

    ERIC Educational Resources Information Center

    Sikma, Lynn; Osborne, Margery

    2014-01-01

    Elementary schools in the United States have been the terrain of a highly politicized push for improved reading and mathematics attainment, as well as calls for increased importance to be given to science, technology, engineering, and mathematics (STEM). With priorities placed on basic skills, however, instructional time in subjects such as…

  15. Participation by STEM Faculty in Mathematics and Science Partnership Activities for Teachers

    ERIC Educational Resources Information Center

    Moyer-Packenham, Patricia S.; Kitsantas, Anastasia; Bolyard, Johnna J.; Huie, Faye; Irby, Nancy

    2009-01-01

    This study examines archival data from a federally-funded mathematics and science program (NSF-MSP) where partnerships in the program provided pre-service and in-service education for mathematics and science teachers. Of particular interest in the present study was the breadth of participation by IHE Science, Technology, Engineering, and…

  16. Successful isolation of viable adipose-derived stem cells from human adipose tissue subject to long-term cryopreservation: positive implications for adult stem cell-based therapeutics in patients of advanced age.

    PubMed

    Devitt, Sean M; Carter, Cynthia M; Dierov, Raia; Weiss, Scott; Gersch, Robert P; Percec, Ivona

    2015-01-01

    We examined cell isolation, viability, and growth in adipose-derived stem cells harvested from whole adipose tissue subject to different cryopreservation lengths (2-1159 days) from patients of varying ages (26-62 years). Subcutaneous abdominal adipose tissue was excised during abdominoplasties and was cryopreserved. The viability and number of adipose-derived stem cells isolated were measured after initial isolation and after 9, 18, and 28 days of growth. Data were analyzed with respect to cryopreservation duration and patient age. Significantly more viable cells were initially isolated from tissue cryopreserved <1 year than from tissue cryopreserved >2 years, irrespective of patient age. However, this difference did not persist with continued growth and there were no significant differences in cell viability or growth at subsequent time points with respect to cryopreservation duration or patient age. Mesenchymal stem cell markers were maintained in all cohorts tested throughout the duration of the study. Consequently, longer cryopreservation negatively impacts initial live adipose-derived stem cell isolation; however, this effect is neutralized with continued cell growth. Patient age does not significantly impact stem cell isolation, viability, or growth. Cryopreservation of adipose tissue is an effective long-term banking method for isolation of adipose-derived stem cells in patients of varying ages. PMID:25945096

  17. Successful Isolation of Viable Adipose-Derived Stem Cells from Human Adipose Tissue Subject to Long-Term Cryopreservation: Positive Implications for Adult Stem Cell-Based Therapeutics in Patients of Advanced Age

    PubMed Central

    Devitt, Sean M.; Carter, Cynthia M.; Dierov, Raia; Weiss, Scott; Percec, Ivona

    2015-01-01

    We examined cell isolation, viability, and growth in adipose-derived stem cells harvested from whole adipose tissue subject to different cryopreservation lengths (2–1159 days) from patients of varying ages (26–62 years). Subcutaneous abdominal adipose tissue was excised during abdominoplasties and was cryopreserved. The viability and number of adipose-derived stem cells isolated were measured after initial isolation and after 9, 18, and 28 days of growth. Data were analyzed with respect to cryopreservation duration and patient age. Significantly more viable cells were initially isolated from tissue cryopreserved <1 year than from tissue cryopreserved >2 years, irrespective of patient age. However, this difference did not persist with continued growth and there were no significant differences in cell viability or growth at subsequent time points with respect to cryopreservation duration or patient age. Mesenchymal stem cell markers were maintained in all cohorts tested throughout the duration of the study. Consequently, longer cryopreservation negatively impacts initial live adipose-derived stem cell isolation; however, this effect is neutralized with continued cell growth. Patient age does not significantly impact stem cell isolation, viability, or growth. Cryopreservation of adipose tissue is an effective long-term banking method for isolation of adipose-derived stem cells in patients of varying ages. PMID:25945096

  18. STEM Thinking!

    ERIC Educational Resources Information Center

    Reeve, Edward M.

    2015-01-01

    Science, Technology, Engineering, and Mathematics (STEM) is a term seen almost daily in the news. In 2009, President Obama launched the Educate to Innovate initiative to move American students from the middle to the top of the pack in science and math achievement over the next decade (The White House, n.d.). Learning about the attributes of STEM

  19. STEM Career

    NSDL National Science Digital Library

    There are many groups and organizations in the United States working to encourage young people to enter STEM-related careers, and this website represents one of those endeavors. The STEM Career website was created by Professor Rich Feller of Colorado State University to help encourage young people to select just such a career path. The website contains updates on STEM career possibilities, and basic answers to questions like "Why STEM?" and "Why STEM Centric Career Development?" Visitors should also scan through the "STEM Disciplines" area on the homepage, as it contains resources about the job outlook for related STEM disciplines, such as biochemical engineering and engineering managers. Moving on, the site also features news updates from Professor Feller and his colleagues on subjects that include the ways in which corporations are promoting STEM education and women in STEM.

  20. The use of virtual and simulated teaching and learning environments: Inviting gifted students into science, technology, engineering, and mathematics careers (STEM) through summer partnerships

    Microsoft Academic Search

    Lisa Dieker; Kelly Grillo; Nirmala Ramlakhan

    2012-01-01

    New technologies and virtual environments are emerging globally, yet the way these tools can impact the learning and future career paths of students who are gifted is limited in the literature at this time. The purpose of this article is to provide a summary of how a science, technology, engineering, and mathematics (STEM) summer camp, based on virtual and simulated

  1. Focusing on Challenging Content and Practical Applications in Science, Technology, Engineering and Mathematics (STEM) Studies in Middle Grades Schools, High Schools and Technology Centers. High Schools That Work

    ERIC Educational Resources Information Center

    Southern Regional Education Board (SREB), 2012

    2012-01-01

    Schools that give students access to STEM (science, technology, engineering and mathematics) studies are accomplishing several objectives: introducing students to higher-level academic and career studies, expanding project-based learning in the curriculum, enticing students to remain in school until graduation, and preparing students for…

  2. Spots and stripes: Pleomorphic patterning of stem cells via p-ERK-dependent cell chemotaxis shown by feather morphogenesis and mathematical simulation

    E-print Network

    Maini, Philip K.

    by feather morphogenesis and mathematical simulation Chih-Min Lin a , Ting Xin Jiang a , Ruth E. Baker b Accepted 27 July 2009 Available online 6 August 2009 Keywords: Pattern formation Feather morphogenesis Stem configurations. Little is known about the mechanisms underlying the process of periodic patterning. Feather

  3. Activities of starch hydrolytic enzymes and sucrose-phosphate synthase in the stems of rice subjected to water stress during grain filling.

    PubMed

    Yang, J; Zhang, J; Wang, Z; Zhu, Q

    2001-11-01

    To understand the effect of water stress on the remobilization of prestored carbon reserves, the changes in the activities of starch hydrolytic enzymes and sucrose-phosphate synthase (SPS) in the stems of rice (Oryza sativa L.) during grain filling were investigated. Two rice cultivars, showing high lodging-resistance and slow remobilization, were grown in the field and subjected to well-watered (WW, psi(soil)=0) and water-stressed (WS, psi(soil)=-0.05 MPa) treatments 9 d after anthesis (DAA) till maturity. Leaf water potentials of both cultivars markedly decreased during the day as a result of WS treatment, but completely recovered by early morning. WS treatment accelerated the reduction of starch in the stems, promoted the reallocation of prefixed (14)C from the stems to grains, shortened the grain filling period, and increased the grain filling rate. More soluble sugars including sucrose were accumulated in the stems under WS than under WW treatments. Both alpha- and beta-amylase activities were enhanced by the WS, with the former enhanced more than the latter, and were significantly correlated with the concentrations of soluble sugars in the stems. The other two possible starch-breaking enzymes, alpha-glucosidase and starch phosphorylase, showed no significant differences in the activities between the WW and WS treatments. Water stress also increased the SPS activity that is responsible for sucrose production. Both V(limit) and V(max), the activities of the enzyme at limiting and saturating substrate concentrations, were enhanced and the activation state (V(limit)/V(max)) was also increased as a result of the more significant enhancement of V(limit). The enhanced SPS activity was closely correlated with an increase of sucrose accumulation in the stems. The results suggest that the fast hydrolysis of starch and increased carbon remobilization were attributed to the enhanced alpha-amylase activity and the high activation state of SPS when the rice was subjected to water stress. PMID:11604456

  4. Examining the Academic Success of Latino Students in Science Technology Engineering and Mathematics (STEM) Majors

    Microsoft Academic Search

    Darnell Cole; Araceli Espinoza

    2008-01-01

    Using a longitudinal sample of 146 Latino students' in science, technology, engineering, and mathematics majors, the purpose of the study was to examine factors that affect their academic performance. The main premise supporting this study suggested that Latino students perform better academically when they have cultural congruity within their chosen academic major. Although this premise was supported, college experience variables

  5. A Study of STEM Assessments in Engineering, Science, and Mathematics for Elementary and Middle School Students

    ERIC Educational Resources Information Center

    Harwell, Michael; Moreno, Mario; Phillips, Alison; Guzey, S. Selcen; Moore, Tamara J.; Roehrig, Gillian H.

    2015-01-01

    The purpose of this study was to develop, scale, and validate assessments in engineering, science, and mathematics with grade appropriate items that were sensitive to the curriculum developed by teachers. The use of item response theory to assess item functioning was a focus of the study. The work is part of a larger project focused on increasing…

  6. Gender Gap Trends on Mathematics Exams Position Girls and Young Women for STEM Careers

    ERIC Educational Resources Information Center

    Beekman, John A.; Ober, David

    2015-01-01

    Nine years of results on 4.2 million of Indiana's Indiana Statewide Testing for Educational Progress (ISTEP) mathematics (math) exams (grades 3-10) taken after the implementation of No Child Left Behind have been used to determine gender gaps and their associated trends. Sociocultural factors were investigated by comparing math gender gaps…

  7. An Examination of the Effects of Collaborative Scientific Visualization via Model-based Reasoning on Science, Technology, Engineering, and Mathematics (STEM) Learning Within an Immersive 3D World

    NASA Astrophysics Data System (ADS)

    Soleimani, Ali

    Immersive 3D worlds can be designed to effectively engage students in peer-to-peer collaborative learning activities, supported by scientific visualization, to help with understanding complex concepts associated with learning science, technology, engineering, and mathematics (STEM). Previous research studies have shown STEM learning benefits associated with the use of scientific visualization tools involving model-based reasoning (MBR). Little is known, however, about collaborative use of scientific visualization, via MBR, within an immersive 3D-world learning environment for helping to improve perceived value of STEM learning and knowledge acquisition in a targeted domain such as geothermal energy. Geothermal energy was selected as the study's STEM focus, because understanding in the domain is highly dependent on successfully integrating science and mathematics concepts. This study used a 2x2 Mixed ANOVA, with repeated measures, design to analyze collaborative usage of a geothermal energy MBR model and its effects on learning within an immersive 3D world. The immersive 3D world used for the study is supported by the Open Simulator platform. Findings from this study can suggest ways to improve STEM learning and inform the design of MBR activities when conducted within an immersive 3D world.

  8. Education research Making STEM

    E-print Network

    Rambaut, Andrew

    Education research Working Together: Making STEM happen in secondary schools #12;STEM education | 1 The Camden School STEM Initiative Interdisciplinary STEM education stimulates interest in science, technology on the combined application of all four subjects. Students of Maria Fidelis consider how to use their STEM garden

  9. STEM Coursetaking among High School Graduates, 1990-2005. MPR Research Brief

    ERIC Educational Resources Information Center

    Laird, Jennifer; Alt, Martha; Wu, Joanna

    2009-01-01

    This research brief examines high school students' coursetaking in STEM (science, technology, engineering, and mathematics) subjects. As technical and scientific innovation increasingly drives the global economy, educators and experts in technical fields have expressed concern about the academic preparation of U.S. students in STEM fields. Using…

  10. 1-,2-,3-e - Engaging All Exceptional Students in Science, Technology, Engineering and Mathematics (STEM)

    NASA Astrophysics Data System (ADS)

    Runyon, C. R.; Hall, C.; Baber, M.

    2013-12-01

    There are more than 50 million Americans with disabilities, approximately half of whom are students in a mainstreamed classroom. The National Association for Gifted Children estimates that approximately 3 million of those, 6% of the student population, are academically gifted, and 150,000 - 300,000 students of those are twice or triple exceptional (2e and 3e, respectively). The 2e and 3e refers to intellectually gifted children who also have some form(s) of disability. Unfortunately most schools in the US identify children by their giftedness or by their disability, but rarely by both. An apparent trend with 2e children, particularly when autism is paired with gifted, is that students identify with their disability instead of their strengths. 2e students have shown a propensity for interests in the science and technology fields. Few specialized programs and/or resources in STEM exist to engage and involve these exceptional students and fewer still is the number of faculty and staff trained to work with the twice and triple exceptionalities. Palmetto Scholars Academy (PSA), Charleston, SC a school for gifted and talented, provides a differentiated program to meet the educational needs of gifted learners, while also addressing the students' social/emotional needs. The Brown/MIT NASA Lunar Science Institute, in conjunction with the NASA South Carolina Space Grant Consortium, is working directly with educators from the PSA to identify what kinds of materials they need and what mediums work best for the different student (cap)abilities. This partnership will provide a means of 'consciousness raising' for teachers to help students develop their strengths and educators will gain a new understanding of 2e and 3e that will transfer into better instruction. One technique being implemented is the use of STEM-oriented engineering and technology design challenges and problem solving. These tasks allow students to use a variety of integrative and multi-disciplinary skills for solving open-ended problems either by themselves or in small groups. Not only do such activities simulate real-world scenarios but they also provide opportunities for independent learning. Further, using design-based approaches for instruction enhances students' academic abilities, opens their minds to innovative and transformative ideas, and increases their self-esteem and confidence in STEM. To ensure that our results reach a broader audience we are sharing lessons learned from our collaborative efforts with NASA product developers and personnel. In addition to making modifications and suggestions for adaptations, many simple recommendations that can help ALL learners participate more readily in classroom STEM activities and discussions include: 1) Use of simple, sans-serif fonts and high contrast presentation media (e.g., white text on black is most effective); 2) Repetition and use of multiple presentation modes; 3) Actively involving the learner, and 4) Keeping the audience, the ultimate user, in mind at all times when developing and sharing content.

  11. Mathematical models for the apparent masses of standing subjects exposed to vertical whole-body vibration

    NASA Astrophysics Data System (ADS)

    Matsumoto, Y.; Griffin, M. J.

    2003-02-01

    Linear lumped parameter models of the apparent masses of human subjects in standing positions when exposed to vertical whole-body vibration have been developed. Simple models with a single degree-of-freedom (d.o.f.) and with two (d.o.f.) were considered for practical use. Model parameters were optimised using both the mean apparent mass of 12 male subjects and the apparent masses of individual subjects measured in a previous study. The calculated responses of two (d.o.f.) models with a massless support structure showed best agreement with the measured apparent mass and phase, with errors less than 0.1 in the normalised apparent mass (i.e., corresponding to errors less than 10% of the static mass) and errors less than 5° in the phase for a normal standing posture. The model parameters obtained with the mean measured apparent masses of the 12 subjects were similar to the means of the 12 sets of parameters obtained when fitting to the individual apparent masses. It was found that the effects of vibration magnitude and postural changes on the measured apparent mass could be represented by changes to the stiffness and damping in the two (d.o.f.) models.

  12. Conceptions of Problem Solving in Commonly Used and Distinctive Elementary Mathematics Curricula. Elementary Subjects Center Series, No. 43.

    ERIC Educational Resources Information Center

    Remillard, Janine

    One of the five goals proposed in the National Council of Teachers of Mathematics' (NCTM) "Curriculum and Evaluation Standards for School Mathematics" is for students to become "mathematical problem solvers." To achieve this goal, the NCTM proposes fundamental changes in both the content of mathematics curricula and the pedagogy of the mathematics

  13. Journal of STEM Education Volume 12 Issue 5 & 6 July-September 2011 9 A New Undergraduate Curriculum in Mathematical

    E-print Network

    Singh, Amit

    Curriculum in Mathematical Biology at the University of Dayton Muhammad Usman and Amit Singh* University- guage of mathematics." The traditional undergraduate course curriculum is heavily focused on individual disci- plines like biology, physics, chemistry, and mathematics with lesser empha- sis

  14. Bayer Facts of Science Education XV: A View from the Gatekeepers--STEM Department Chairs at America's Top 200 Research Universities on Female and Underrepresented Minority Undergraduate STEM Students

    ERIC Educational Resources Information Center

    Journal of Science Education and Technology, 2012

    2012-01-01

    Diversity and the underrepresentation of women, African-Americans, Hispanics and American Indians in the nation's science, technology, engineering and mathematics (STEM) fields are the subjects of the XV: A View from the Gatekeepers--STEM Department Chairs at America's Top 200 Research Universities on Female and Underrepresented Minority…

  15. A New Era of Science Education: Science Teachers' Perceptions and Classroom Practices of Science, Technology, Engineering, and Mathematics (STEM) Integration

    NASA Astrophysics Data System (ADS)

    Wang, Hui-Hui

    Quality STEM education is the key in helping the United States maintain its lead in global competitiveness and in preparing for new economic and security challenges in the future. Policymakers and professional societies emphasize STEM education by legislating the addition of engineering standards to the existing science standards. On the other hand, the nature of the work of most STEM professionals requires people to actively apply STEM knowledge to make critical decisions. Therefore, using an integrated approach to teaching STEM in K-12 is expected. However, science teachers encounter numerous difficulties in adapting the new STEM integration reforms into their classrooms because of a lack of knowledge and experience. Therefore, high quality STEM integration professional development programs are an urgent necessity. In order to provide these high quality programs, it is important to understand teachers' perceptions and classroom practices regarding STEM integration. A multiple-case study was conducted with five secondary school science teachers in order to gain a better understanding of teachers' perceptions and classroom practices in using STEM integration. This study addresses the following research questions: 1) What are secondary school science teachers' practices of STEM integration? 2) What are secondary science teachers' overall perceptions of STEM integration? and 3) What is the connection between secondary science teachers' perceptions and understanding of STEM integration with their classroom practices? This research aims to explore teachers' perceptions and classroom practices in order to set up the baseline for STEM integration and also to determine STEM integration professional development best practices in science education. Findings from the study provide critical data for making informed decision about the direction for STEM integration in science education in K-12.

  16. Snow snakes and science agency: Empowering American Indian students through a culturally-based science, technology, engineering, and mathematics (STEM) curriculum

    NASA Astrophysics Data System (ADS)

    Miller, Brant Gregory

    Mainstream curricula have struggled to provide American Indian students with meaningful learning experiences. This research project studied a novel approach to engaging students with science, technology, engineering, and mathematics (STEM) content through a culturally-based context. The traditional American Indian game of Snow Snakes (shushumeg in Ojibwe) presented a highly engaging context for delivering STEM content. Through the engaging context of snow snakes, the designed STEM curriculum explicitly applied mathematics (scaling and data), and science (force and motion) to an engineering prototype iteration that used available materials and tools (technology) for success. It was hypothesized that by engaging students through the carefully integrated STEM curriculum, driven by the culturally based context of snow snakes, students would exhibit an increase in science agency and achievement. The overarching research question explored for this study was: How does a culturally-based and integrated STEM curriculum impact student's science agency? Associated sub-questions were: (1) What does science agency look like for 6th grade students? (2) What key experiences are involved in the development of science agency through a culturally-based STEM curriculum context? And (3) What are the impacts on the community associated with the implementation of a culturally-based STEM curriculum? A case study research design was implemented for this research. Yin (2003) defines a case study as investigating a phenomenon (e.g. science agency) which occurs within authentic contexts (e.g. snow snakes, Adventure Learning, and Eagle Soaring School) especially when the boundaries between phenomenon and context are unclear. For this case study Eagle Soaring School acted as the bounded case with students from the 6th grade class representing the embedded units. Science agency was the theoretical framework for data analysis. Major findings were categorized as science and STEM learning, agency, and community impact. Concerning agency, students displayed science agency through: connecting snow snake experiences to outside contexts; students emerging as leaders; and students commanding a facility with science. This research lays the foundation for future inquiry into the development of science agency in students using culturally-based contexts.

  17. Understanding STEM: Current Perceptions

    ERIC Educational Resources Information Center

    Brown, Ryan; Brown, Joshua; Reardon, Kristin; Merrill, Chris

    2011-01-01

    In many ways, the push for STEM (science, technology, engineering, and mathematics) education appears to have grown from a concern for the low number of future professionals to fill STEM jobs and careers and economic and educational competitiveness. The proponents of STEM education believe that by increasing math and science requirements in…

  18. A Mathematical Model of Bimodal Epigenetic Control of miR-193a in Ovarian Cancer Stem Cells

    PubMed Central

    Kocha?czyk, Marek; Lin, Jora M. J.; Chen, Gary C. W.; Lai, Hung-Cheng; Nephew, Kenneth P.; Hwang, Tzy-Wei; Chan, Michael W. Y.

    2014-01-01

    Accumulating data indicate that cancer stem cells contribute to tumor chemoresistance and their persistence alters clinical outcome. Our previous study has shown that ovarian cancer may be initiated by ovarian cancer initiating cells (OCIC) characterized by surface antigen CD44 and c-KIT (CD117). It has been experimentally demonstrated that a microRNA, namely miR-193a, targets c-KIT mRNA for degradation and could play a crucial role in ovarian cancer development. How miR-193a is regulated is poorly understood and the emerging picture is complex. To unravel this complexity, we propose a mathematical model to explore how estrogen-mediated up-regulation of another target of miR-193a, namely E2F6, can attenuate the function of miR-193a in two ways, one through a competition of E2F6 and c-KIT transcripts for miR-193a, and second by binding of E2F6 protein, in association with a polycomb complex, to the promoter of miR-193a to down-regulate its transcription. Our model predicts that this bimodal control increases the expression of c-KIT and that the second mode of epigenetic regulation is required to generate a switching behavior in c-KIT and E2F6 expressions. Additional analysis of the TCGA ovarian cancer dataset demonstrates that ovarian cancer patients with low expression of EZH2, a polycomb-group family protein, show positive correlation between E2F6 and c-KIT. We conjecture that a simultaneous EZH2 inhibition and anti-estrogen therapy can constitute an effective combined therapeutic strategy against ovarian cancer. PMID:25545504

  19. Using e?learning to support primary trainee teachers’ development of mathematical subject knowledge: An analysis of learning and the impact on confidence

    Microsoft Academic Search

    Hilary Burgess; Ann Shelton Mayes

    2008-01-01

    This article explores the effectiveness of a mathematics subject knowledge development model that integrates conventional text?based distance learning with an e?learning coaching and peer group conferencing environment. The effectiveness of the model in supporting 194 trainee primary (pupil’s aged 5–11 years) teachers achievement of the subject knowledge standards required for qualified teacher status is evaluated and the impact of the

  20. STEM Careers Days at City and Islington College

    ERIC Educational Resources Information Center

    Swinscoe, David

    2011-01-01

    In many UK secondary schools, pupils, parents and teachers have limited knowledge about careers available through studying Science, Technology, Engineering and Mathematics (STEM) subjects and the progression pathways to these careers. Pupils need confidence that studying science will lead them to something useful and of value to them in the…

  1. Disciplinary Literacy Pedagogy Development of STEM Preservice Teachers

    ERIC Educational Resources Information Center

    Hart, Steven M.; Bennett, Stephanie M.

    2013-01-01

    The paradigm of content area literacy instruction is shifting from a view of literacy as generalizable across the curriculum to a disciplinary perspective of literacies specific to the specialized language, text structures, and habits of thinking within particular subject areas. Preservice STEM (science, technology, engineering, and mathematics)…

  2. Collaborative technologies for Science, Technology, Engineering, and Mathematics (STEM): Sociology of science and knowledge, holistic systems engineering, and systems thinking

    Microsoft Academic Search

    Keith W. Jones; Dale Kristof; Larry C. Jenkins; Jeffry Ramsey; Dale Patrick; S. Burnham; I. L. Turner

    2008-01-01

    This paper is a conceptual thought experiment that discusses the need for efficient, interactive and inter- operative, application- and learner-centered collaborative technologies to enable implementation of cognitive apprenticeship, training, and other types of education and sociological techniques that can help change the engineering environment, both educational and occupational, to enhance recruitment of non- traditional STEM professionals and enhance all STEM

  3. A Review of Science, Technology, Engineering & Mathematics (STEM) Education Research from 1999-2013: A Malaysian Perspective

    ERIC Educational Resources Information Center

    Jayarajah, Kamaleswaran; Saat, Rohaida Mohd; Rauf, Rose Amnah Abdul

    2014-01-01

    The purpose of this study is to explore the research base of STEM education in Malaysia through an analysis review of articles for a 14-year period, from 1999 to 2013. The research base review focuses on identifying four characteristics of STEM education: a) temporal distribution, b) the research areas involved in each discipline, c) the types of…

  4. STEM policy and science education: scientistic curriculum and sociopolitical silences

    NASA Astrophysics Data System (ADS)

    Gough, Annette

    2015-06-01

    This essay responds to the contribution of Volny Fages and Virginia Albe, in this volume, to the field of research in science education, and places it in the context of the plethora of government and industry policy documents calling for more Science, Technology, Engineering and Mathematics (STEM) education in schools and universities and the tension between these and students' declining interest in studying STEM subjects. It also draws attention to the parallels between the silences around sociopolitical issues in government policies and curriculum related to STEM, including nanoscience, and those found with respect to environmental education two decades ago, and relates these to the resurgence of a scientific rationalist approach to curriculum.

  5. STEM policy and science education: scientistic curriculum and sociopolitical silences

    NASA Astrophysics Data System (ADS)

    Gough, Annette

    2014-05-01

    This essay responds to the contribution of Volny Fages and Virginia Albe, in this volume, to the field of research in science education, and places it in the context of the plethora of government and industry policy documents calling for more Science, Technology, Engineering and Mathematics (STEM) education in schools and universities and the tension between these and students' declining interest in studying STEM subjects. It also draws attention to the parallels between the silences around sociopolitical issues in government policies and curriculum related to STEM, including nanoscience, and those found with respect to environmental education two decades ago, and relates these to the resurgence of a scientific rationalist approach to curriculum.

  6. The Bayer Facts of Science Education XVI: "US STEM Workforce Shortage--Myth or Reality? Fortune 1000 Talent Recruiters on the Debate"

    ERIC Educational Resources Information Center

    Journal of Science Education and Technology, 2014

    2014-01-01

    A major debate is currently underway in the USA about whether there is, in fact, a science, technology, engineering and mathematics (STEM) workforce shortage in the country or not. This is the subject of the "Bayer Facts of Science Education XVI: US STEM Workforce Shortage--Myth or Reality? Fortune 1000 Talent Recruiters on the Debate."…

  7. An analysis of scientific self-efficacy as a benefit of summer research participation for underrepresented minorities in science, technology, engineering, and mathematics (STEM) fields

    NASA Astrophysics Data System (ADS)

    Carter, Frances D.

    2011-12-01

    Low participation and performance in science, technology, engineering, and mathematics (STEM) fields by U.S. citizens are widely recognized as major problems with substantial economic, political, and social ramifications. Studies of collegiate interventions designed to broaden participation in STEM fields suggest that participation in undergraduate research is a key program component that enhances such student outcomes as undergraduate GPA, graduation, persistence in a STEM major, and graduate school enrollment. However, little is known about the mechanisms that are responsible for these positive effects. The current study hypothesizes that undergraduate research participation increases scientific self-efficacy and scientific research proficiency. This hypothesis was tested using data obtained from a survey of minority students from several STEM intervention programs that offer undergraduate research opportunities. Students were surveyed both prior to and following the summer of 2010. Factor analysis was used to examine the factor structure of participants' responses on scientific self-efficacy and scientific research proficiency scales. Difference-in-difference analysis was then applied to the resulting factor score differences to estimate the relationship of summer research participation with scientific self-efficacy and scientific research proficiency. Factor analytic results replicate and further validate previous findings of a general scientific self-efficacy construct (Schultz, 2008). While the factor analytic results for the exploratory scientific research proficiency scale suggest that it was also a measureable construct, the factor structure was not generalizable over time. Potential reasons for the lack of generalizability validity for the scientific research proficiency scale are explored and recommendations for emerging scales are provided. Recent restructuring attempts within federal science agencies threaten the future of STEM intervention programs. Causal estimates of the effect of undergraduate research participation on specific and measurable benefits can play an important role in ensuring the sustainability of STEM intervention programs. Obtaining such estimates requires additional studies that, inter alia, incorporate adequate sample sizes, valid measurement scales, and the ability to account for unobserved variables. Political strategies, such as compromise, can also play an important role in ensuring the sustainability of STEM intervention programs.

  8. The Office of Academic Affairs and the Office of Research are pleased to offer a new Seed Funding Program focused explicitly on STEM (Science, Technology, Engineering, and Mathematics) activities in underserved

    E-print Network

    Carver, Jeffrey C.

    OVERVIEW The Office of Academic Affairs and the Office of Research are pleased to offer a new Seed Funding Program focused explicitly on STEM (Science, Technology, Engineering, and Mathematics) activities a poster showcase of projects. External grant proposals resulting from a Spring 2013 seed funding award

  9. Two MagLab leaders, Dr. Dragana Popovic and Dr. Roxanne Hughes, have had chapters published in two separate books about advancing participation of women in Science, Technology, Engineering and Mathematical (STEM) fields.

    E-print Network

    McQuade, D. Tyler

    separate books about advancing participation of women in Science, Technology, Engineering and Mathematical book Alliances for Advancing Academic Women: Guidelines Diversity Expertise at the MagLab: Book. This book provides examples of how STEM faculty and administration can collaborate toward goals

  10. Gender Differences in the Influence of Early Perceived Parental Support on Student Mathematics and Science Achievement and STEM Career Attainment

    ERIC Educational Resources Information Center

    Ing, Marsha

    2014-01-01

    The lack of females entering STEM careers is well documented. Reasons for the gender gaps at all stages of the educational pipeline include both internal factors such as self-concept and external factors such as the influence of parents, media, and educators. Using latent growth curve analysis and nationally representative longitudinal survey…

  11. Is There an Alternative? An Analysis of Commonly Used and Distinctive Elementary Mathematics Curricula. Elementary Subjects Center, Series No. 31.

    ERIC Educational Resources Information Center

    Remillard, Janine

    Phase II of the research on the teaching and learning of higher order thinking and conceptual understanding in the elementary subjects, undertaken by the Center for the Learning and Teaching of Elementary Subjects, includes descriptions and analyses of commonly used and distinctive published curricula in each of the five subject areas. This report…

  12. Mathematical Mathematical

    E-print Network

    Brass, Stefan

    2. Basic Notions of Mathematical Logic 2­1 Part 2: Basic Notions of Mathematical Logic References://www.ida.liu.se/â?ťulfni/lpp] Stefan Brass: Datenbanken I UniversitË? at Halle, 2004 2. Basic Notions of Mathematical Logic 2: Datenbanken I UniversitË? at Halle, 2004 2. Basic Notions of Mathematical Logic 2­3 Overview 1. Introduction

  13. STEM--Beyond the Acronym

    ERIC Educational Resources Information Center

    Vasquez, Jo Anne

    2015-01-01

    When most educators think of STEM education, they think of fully integrated projects seamlessly combining all four disciplines--science, technology, engineering, and mathematics. Although such transdisciplinary STEM units are ideal, writes Vasquez, they are not the only way to give students valuable STEM experiences. She gives examples of two…

  14. Impact of Interdisciplinary Undergraduate Research in mathematics and biology on the development of a new course integrating five STEM disciplines.

    PubMed

    Caudill, Lester; Hill, April; Hoke, Kathy; Lipan, Ovidiu

    2010-01-01

    Funded by innovative programs at the National Science Foundation and the Howard Hughes Medical Institute, University of Richmond faculty in biology, chemistry, mathematics, physics, and computer science teamed up to offer first- and second-year students the opportunity to contribute to vibrant, interdisciplinary research projects. The result was not only good science but also good science that motivated and informed course development. Here, we describe four recent undergraduate research projects involving students and faculty in biology, physics, mathematics, and computer science and how each contributed in significant ways to the conception and implementation of our new Integrated Quantitative Science course, a course for first-year students that integrates the material in the first course of the major in each of biology, chemistry, mathematics, computer science, and physics. PMID:20810953

  15. Cancer Stem Cell Targeting Using the Alpha-Particle Emitter, 213Bi: Mathematical Modeling and Feasibility Analysis

    PubMed Central

    Sgouros, George; Song, Hong

    2010-01-01

    There is increasing recognition that treatment failure in cancer may be associated with the failure to sterilize a small subpopulation of tumor cells that have been characterized as tumor stem cells. Defined as cells that are able to self-renew and also to replenish a phenotypically diverse tumor-cell population, such cells are also considered resistant to chemotherapy. These characteristics are optimal for targeting by using alpha-particle-emitting radionuclides. Because of their high-energy deposition density per track, alpha-particles are capable of targeting single cells or small clusters of cells with minimal normal organ toxicity. The DNA damage induced by alpha-particles is largely irreparable and, therefore, alpha-particle-induced damage is minimally susceptible to resistance mechanisms. In this work, theoretical modeling was performed to examine the potential of alpha-emitter targeting of such small clusters of cancer stem cells. Critical parameters influencing efficacy and toxicity were identified and their relationship elucidated. The results identify specific activity, antigen site density, and number of target cells as critical parameters for effective cell killing and demonstrate substantial efficacy gains by targeting a smaller number of stem cells, as opposed to the entire tumor-cell population. PMID:18298331

  16. Validity decay versus validity stability in STEM and non-STEM fields

    NASA Astrophysics Data System (ADS)

    Westrick, Paul Andrew

    The main purpose of this study was to determine if validity coefficients for ACT scores, both composite scores and subject area test scores, and high school grade point average (HSGPA) decayed or held stable over eight semesters of undergraduate study in science, technology, engineering, and mathematics (STEM) fields at civilian four-year institutions, and whether the decay patterns differed from those found in non-STEM fields at the same institutions. Data from 62,212 students at 26 four-year institutions were analyzed in a hierarchical meta-analysis in which student major category (SMC), gender, and admission selectivity levels were considered potential moderators. Four sets of analyses were run. The first was by the three SMCs: STEM-Quantitative majors, STEM-Biological majors, and non-STEM majors. The second was SMC by gender. The third was SMC by admission selectivity level. The fourth was SMC by gender by admission selectivity level. The results across all four analyses indicated that ACT score validity coefficients for STEM-Quantitative and STEM-Biological majors decayed less over eight semesters than the validity coefficients for non-STEM majors did. This was true for the uncorrected and corrected validity coefficients. For the HSGPA validity coefficients, this was true for the corrected validity coefficients. Non-STEM majors had very similar validity decay patterns regardless of the level of analysis. However, four of the eight STEM subgroups in the final set of analyses had minimal amounts of decay, and in some instances small amounts of validity growth.

  17. Impact of Interdisciplinary Undergraduate Research in Mathematics and Biology on the Development of a New Course Integrating Five STEM Disciplines

    ERIC Educational Resources Information Center

    Caudill, Lester; Hill, April; Hoke, Kathy; Lipan, Ovidiu

    2010-01-01

    Funded by innovative programs at the National Science Foundation and the Howard Hughes Medical Institute, University of Richmond faculty in biology, chemistry, mathematics, physics, and computer science teamed up to offer first- and second-year students the opportunity to contribute to vibrant, interdisciplinary research projects. The result was…

  18. The Current Status of STEM Education Research

    ERIC Educational Resources Information Center

    Brown, Josh

    2012-01-01

    This paper explores the current Science, Technology, Engineering and Mathematics (STEM) education research base through an analysis of articles from eight journals focused on the STEM disciplines. Analyzed are both practitioner and research publications to determine the current scope of STEM education research, where current STEM education…

  19. Another call to increase STEM education

    NASA Astrophysics Data System (ADS)

    Showstack, Randy

    2011-07-01

    As science, technology, engineering, and mathematics (STEM) education becomes increasingly important, U.S. students are lagging behind other nations on international assessments, according to a recent Trends in International Mathematics and Science study. A 22 June report from the U.S. National Research Council (NRC) calls for increasing the focus on STEM education in the United States. “To make progress in improving STEM education for all students, policy makers at the national, state, and local levels should elevate science to the same level of importance as reading and mathematics,” states the report, “Successful K-12 STEM Education: Identifying Effective Approaches in Science, Technology, Engineering, and Mathematics.” It outlines several goals: expand the number of students who pursue advanced degrees and careers in STEM fields; expand the STEM-capable workforce, while also broadening the participation of women and minorities; and increase STEM literacy for all students, whether or not they pursue STEM-related careers or additional study in those areas.

  20. A Study on Prospective Science Teachers' Knowledge and Achievement Levels in Mathematical Logic in Electricity-Related Subjects

    ERIC Educational Resources Information Center

    Yilmaz, Ismail

    2012-01-01

    The purpose of this case study is to reveal prospective science teachers' knowledge and achievement levels in electricity-related subjects. The data for the study were collected from 44 prospective teachers using three measurement tools. The data were then analyzed using software developed for the Probability and Possibility Calculation Statistics…

  1. Regulating stem-cell research and human cloning in an Australian context: an exercise in protecting the status of the human subject

    Microsoft Academic Search

    Olivia Harvey

    2005-01-01

    Over 12 months prior to the recent United Nations decision to defer a decision about what type of international treaty should be developed in the global stem-cell research and human cloning debate, the Federal Parliament of Australia passed two separate pieces of legislation relating to both these concerns. After a five-year long process of community consultation, media spectacle and parliamentary

  2. Stem Cells and Renal Regeneration

    Microsoft Academic Search

    C. Roufosse; H. T. Cook

    2008-01-01

    The role of embryonal or adult stem cells, in particular bone marrow (BM)-derived stem cells, in regenerating the kidney after injury has been the subject of intensive investigation. BM-derived stem cells have been shown to give rise to small numbers of most renal cell types, including tubular cells, mesangial cells, podocytes, vascular cells and interstitial cells. However, the role this

  3. Learning for STEM Literacy: STEM Literacy for Learning

    ERIC Educational Resources Information Center

    Zollman, Alan

    2012-01-01

    We are in the STEM generation whose comprehensive purpose is to resolve (1) societal needs for new technological and scientific advances; (2) economic needs for national security; and (3) personal needs to become a fulfilled, productive, knowledgeable citizen. STEM specifically refers to science, technology, engineering, and mathematics, but now…

  4. Engaging Students in STEM Education

    ERIC Educational Resources Information Center

    Kennedy, T. J.; Odell, M. R. L.

    2014-01-01

    With the "flattening" of the global economy in the 21st century, the teaching of Science, Technology, Engineering, and Mathematics (STEM) has taken on new importance as economic competition has become truly global. STEM education has evolved into a meta-discipline, an integrated effort that removes the traditional barriers between these…

  5. University mathematics students' conceptions of mathematics

    Microsoft Academic Search

    K. Crawford; S. Gordon; J. Nicholas; M. Prosser

    1998-01-01

    A Conceptions of Mathematics Questionnaire was developed, designed to provide an indicator of the nature of students' conceptions of the subject matter they were studying. The scales of the questionnaire were based upon a set of conceptions of mathematics identified in an earlier phenomenographic study of students studying mathematics. The scales represented fragmented and cohesive conceptions of mathematics. Evidence was

  6. I-STEM

    NSDL National Science Digital Library

    The University of Illinois at Urbana-Champaign has developed a multi-pronged approach to remedying the lack of academic emphasis on the STEM subjects, from preschool through college, as well as the lack of interest in STEM subjects on the part of youth in the United States. Visitors can read about the University's four goals under the "Goals" tab at the top of any page. The "STEM Ed Projects" tab contains a directory of externally funded projects divided into four categories, and which are then further divided into subcategories. Visitors will find such projects as "Improving Supply and Demand Data for the Preparation of Secondary Science and Math Teachers" and "Clean Energy Education Workshop", under the category that aims to shape policy and advocate for STEM education. The "Resources" tab contains half a dozen categories under which visitors will find Outreach Resources, Teacher Development and Resources, and Policy and Advocacy for STEM Ed.

  7. Problematizing the STEM Pipeline Metaphor: Is the STEM Pipeline Metaphor Serving Our Students and the STEM Workforce?

    ERIC Educational Resources Information Center

    Cannady, Matthew A.; Greenwald, Eric; Harris, Kimberly N.

    2014-01-01

    Researchers and policy makers often use the metaphor of an ever-narrowing pipeline to describe the trajectory to a science, technology, engineering or mathematics (STEM) degree or career. This study interrogates the appropriateness of the STEM pipeline as the dominant frame for understanding and making policies related to STEM career trajectories.…

  8. Leaving STEM: STEM Ph.D. Holders in Non-STEM Careers. Issue Brief

    ERIC Educational Resources Information Center

    Turk-Bicakci, Lori; Berger, Andrea

    2014-01-01

    During the last few decades, national, state, and institutional-level initiatives have been implemented to build and expand the science, technology, engineering, and mathematics (STEM) workforce by recruiting and retaining groups of individuals that have been traditionally underrepresented in STEM in higher education. The underlying theory of…

  9. Why Mathematics?

    ERIC Educational Resources Information Center

    McClellan, Kathryn T.

    Why mathematics should be learned is discussed. Its role as an important active force in the development of our civilization, and as the most useful subject taught in our schools, next to English, is noted. The primary objective of all mathematics work is to help man study nature, and some practical achievements of this connection are noted.…

  10. Developing Effective STEM Professional Development Programs

    ERIC Educational Resources Information Center

    Avery, Zanj K.; Reeve, Edward M.

    2013-01-01

    To help the United States stay globally competitive in terms of innovation and invention, the teaching of science, technology, engineering, and mathematics (STEM) has become a priority in P-12 education today. As the need for students to become stronger in STEM grows, so does the need for well-qualified STEM teachers who understand what is needed…

  11. The STEM Initiative: Constraints and Challenges

    ERIC Educational Resources Information Center

    Herschbach, Dennis R.

    2011-01-01

    There is considerable national interest in STEM initiatives, but yet there is little discussion concerning what STEM means in terms of a curriculum concept to be applied to school programming. This article focuses on STEM as a curriculum concept. First, STEM programming is discussed in terms of separate subjects, correlated and broad fields…

  12. STEm Minority Graduate Program

    SciTech Connect

    Kaen E. Nicholas

    2012-09-20

    ABSTRACT The state of science, technology, engineering and math (STEM) education in the United States has seen some unfavorable assessments over the past decade. In early February, 2010 the House of Representatives heard testimony on undergraduate and graduate education. The message from the panel, which included experts from academia, STEM-based industries, and the National Science Foundation (NSF) was dire and required an urgent response. The experts along with the committee���¢��������s chairperson, U. S. Representative Daniel Lipinski (D-IL) cited that the complexity of Science, Technology, Engineering, and Mathematics applications and coursework and the methodology utilized to teach these subjects are forcing students out of these disciplines. As the National Academies described in its 2007 report Rising Above the Gathering Storm, successful STEM education is not just an academic pursuit���¢��������it���¢��������s a necessity for competing in the knowledge-based economy that the United States had a key role in creating. The potential for action is being made available again as the America COMPETES Act of 2007 is up for reauthorization. Its initial focus was on STEM education at the K-12 levels, but efforts at the undergraduate and graduate levels are needed to retain students to fill the jobs left vacant as baby boomers retire. The Educational Advancement Alliance, Inc. (EAA) has for two decades created programs that have not only addressed the issues of ensuring that students are aptly prepared for college but have focused its efforts over the past decade on increasing the number of students who pursue degrees in STEM disciplines. For the EAA, the introduction of the wonders of science begins at the elementary and middle school level via the Learning Lab, a state-of-the-art mobile science laboratory that visits students in grades 4-6 at the various schools throughout Philadelphia and The Math/Tech Academy which meets on Saturdays for students in grades 5-7. For the past two years the EAA has assisted college graduates in their quest to attain advanced degrees in STEM by providing fellowships. The EAA continued this effort by recruiting and providing fellowships to students who aspired to continue their education at the graduate level. The fellowships provided funding for tuition, fees, books, technology, and stipends to assist with room, board, and living expenses during the academic year and salary, transportation, and living expenses to those students who secured internships with the Department of Energy. Additionally the EAA designed and implemented needed support systems to ensure successful completion of the Masters degree programs, including but not limited to membership in professional associations, attendance at industry and academic conferences, and professional development workshops, and tutorial assistance if needed. This program assisted over 80 students directly and society-at-large by helping to educate and develop future physicists, engineers, biostatisticians, and researchers who will have the necessary skillsets to fill the increasing numbers of positions that require such expertise.

  13. Tackling the STEM Crisis: Five Steps Your State Can Take to Improve the Quality and Quantity of its K-12 Math and Science Teachers

    ERIC Educational Resources Information Center

    National Council on Teacher Quality, 2009

    2009-01-01

    State laws and regulations can either help or hinder the ability of school districts to hire effective teachers for STEM (science, technology, engineering and mathematics) subjects. State officials wanting to tackle this critical problem need to begin with a thorough review of relevant policies, asking themselves: "Are we part of the problem, and…

  14. Inclusive STEM High School Design: 10 Critical Components

    ERIC Educational Resources Information Center

    Peters-Burton, Erin E.; Lynch, Sharon J.; Behrend, Tara S.; Means, Barbara B.

    2014-01-01

    Historically, the mission of science, technology, engineering, and mathematics (STEM) schools emphasized providing gifted and talented students with advanced STEM coursework. However, a newer type of STEM school is emerging in the United States: inclusive STEM high schools (ISHSs). ISHSs have open enrollment and are focused on preparing…

  15. stem.georgiasouthern.edu THE COLLEGE OF EDUCATION

    E-print Network

    Hutcheon, James M.

    stem.georgiasouthern.edu HOSTED BY THE COLLEGE OF EDUCATION THE COLLEGE OF SCIENCE AND MATHEMATICS the scholarship of STEM teaching and learning. It will also serve as a link to STEM business and industry works in nurturing STEM leaders, at all career stages) 3. THE PHYSICAL INFRASTRUCTURE (exploring what

  16. What Is STEM? A Discussion about Conceptions of STEM in Education and Partnerships

    ERIC Educational Resources Information Center

    Breiner, Jonathan M.; Harkness, Shelly Sheats; Johnson, Carla C.; Koehler, Catherine M.

    2012-01-01

    Educational reformation has proceeded slowly despite the many calls to improve science and mathematics for our students. The acronym STEM (science, technology, engineering, and mathematics) has been adopted by numerous programs as an important focus for renewed global competitiveness for the United States, but conceptions of what STEM entails…

  17. ASL-STEM Forum: A Bottom-Up Approach to Enabling American Sign Language to Grow in STEM Fields

    E-print Network

    Anderson, Richard

    ASL-STEM Forum: A Bottom-Up Approach to Enabling American Sign Language to Grow in STEM Fields topics in Science, Technology, Engineering, and Mathematics (STEM) lack standard terminology to enable them to learn, discuss and contribute to their chosen fields. The ASL-STEM Forum enables the diverse

  18. Mathematical Education

    Microsoft Academic Search

    William P. Thurston

    2005-01-01

    This essay, originally published in the Sept 1990 Notices of the AMS,\\u000adiscusses problems of our mathematical education system that often stem from\\u000awidespread misconceptions by well-meaning people of the process of learning\\u000amathematics. The essay also discusses ideas for fixing some of the problems.\\u000aMost of what I wrote in 1990 remains equally applicable today.

  19. After-school enrichment and the activity theory: How can a management service organization assist schools with reducing the achievement gap among minority and non-minority students in science, technology, engineering, and mathematics (STEM) during the after-school hours?

    Microsoft Academic Search

    Reagan D. Flowers

    2008-01-01

    The primary purpose of this study was to investigate how a management service organization can assist schools with reducing the achievement gap between minority and non-minority students in science, technology, engineering, and mathematics (STEM) during the after-school hours. Developing a strategic plan through creating a program that provides support services for the implementation of hands-on activities in STEM for children

  20. Teacher STEM Perception and Preparation: Inquiry-Based STEM Professional Development for Elementary Teachers

    ERIC Educational Resources Information Center

    Nadelson, Louis S.; Callahan, Janet; Pyke, Patricia; Hay, Anne; Dance, Matthew; Pfiester, Joshua

    2013-01-01

    Student foundational knowledge of science, technology, engineering, and mathematics (STEM) is formed in their elementary education. Paradoxically, many elementary teachers have constrained background knowledge, confidence, and efficacy for teaching STEM that may hamper student STEM learning. The association between teacher preparation to teach…

  1. Making STEM Real

    ERIC Educational Resources Information Center

    Hoachlander, Gary; Yanofsky, Dave

    2011-01-01

    In too many schools, science and mathematics are taught separately with little or no attention to technology and engineering. Also, science and mathematics tend to function in isolation from other core subjects. In California, Linked Learning: Pathways to College and Career Success connects core academics to challenging professional and technical…

  2. Alignment of Hands-on STEM Engagement Activities with Positive STEM Dispositions in Secondary School Students

    NASA Astrophysics Data System (ADS)

    Christensen, Rhonda; Knezek, Gerald; Tyler-Wood, Tandra

    2015-06-01

    This study examines positive dispositions reported by middle school and high school students participating in programs that feature STEM-related activities. Middle school students participating in school-to-home hands-on energy monitoring activities are compared to middle school and high school students in a different project taking part in activities such as an after-school robotics program. Both groups are compared and contrasted with a third group of high school students admitted at the eleventh grade to an academy of mathematics and science. All students were assessed using the same science, technology, engineering and mathematics (STEM) dispositions instrument. Findings indicate that the after-school group whose participants self-selected STEM engagement activities, and the self-selected academy of mathematics and science group, each had highly positive STEM dispositions comparable to those of STEM professionals, while a subset of the middle school whole-classroom energy monitoring group that reported high interest in STEM as a career, also possessed highly positive STEM dispositions comparable to the STEM Professionals group. The authors conclude that several different kinds of hands-on STEM engagement activities are likely to foster or maintain positive STEM dispositions at the middle school and high school levels, and that these highly positive levels of dispositions can be viewed as a target toward which projects seeking to interest mainstream secondary students in STEM majors in college and STEM careers, can hope to aspire. Gender findings regarding STEM dispositions are also reported for these groups.

  3. Curriculum and Implementation Effects on High School Students' Mathematics Learning from Curricula Representing Subject-Specific and Integrated Content Organizations

    ERIC Educational Resources Information Center

    Grouws, Douglas A.; Tarr, James E.; Chavez, Oscar; Sears, Ruthmae; Soria, Victor M.; Taylan, Rukiye D.

    2013-01-01

    This study examined the effect of 2 types of mathematics content organization on high school students' mathematics learning while taking account of curriculum implementation and student prior achievement. Hierarchical linear modeling with 3 levels showed that students who studied from the integrated curriculum were significantly advantaged…

  4. High-Resolution Mapping of H1 Linker Histone Variants in Embryonic Stem Cells

    E-print Network

    High-Resolution Mapping of H1 Linker Histone Variants in Embryonic Stem Cells Journal Information York State Empire Stem Cell Board. The funders had no role in study design, data collection Categories Subject: Biology Subject: Developmental Biology Subject: Stem Cells Subject: Embryonic Stem Cells

  5. After-school enrichment and the activity theory: How can a management service organization assist schools with reducing the achievement gap among minority and non-minority students in science, technology, engineering, and mathematics (STEM) during the after-school hours?

    NASA Astrophysics Data System (ADS)

    Flowers, Reagan D.

    The primary purpose of this study was to investigate how a management service organization can assist schools with reducing the achievement gap between minority and non-minority students in science, technology, engineering, and mathematics (STEM) during the after-school hours. Developing a strategic plan through creating a program that provides support services for the implementation of hands-on activities in STEM for children during the after-school hours was central to this purpose. This Project Demonstrating Excellence (PDE), a social action project, also presents historical and current after-school program developments in the nation. The study is quantitative and qualitative in nature. Surveys were utilized to quantitatively capture the opinions of participants in the social action project on three specific education related issues: (1) disparity in academic motivation of students to participate in after-school STEM enrichment programs; (2) whether teachers and school administrators saw a need for STEM after-school enrichment; and (3) developing STEM after-school programs that were centered on problem-solving and higher-order thinking skills to develop students' interest in STEM careers. The sample consisted of 50 participants comprised of students, teachers, and administrators. The focus groups and interviews provided the qualitative data for the study. The qualitative sample consisted of 14 participants comprised of students, parents and teachers, administrators, an education consultant, and a corporate sponsor. The empirical data obtained from the study survey, focus groups, and interviews provided a comprehensive profile on the current views and future expectations of STEM after-school enrichment, student and school needs, and community partnerships with STEM companies. Results of the study and review of the implementation of the social action project, C-STEM (communication, science, technology, engineering, and mathematics) Teacher and Student Support Services, Inc., revealed the need and focus for STEM after-school enrichment programs in Houston, Texas. This result, along with requirements of STEM Research and Special Programs Administrations and a multiyear and multilevel strategic plan inspired by this study, led to the conceptualization, development, and implementation of C-STEM Teacher and Student Support Services, Inc. at multiple schools in Houston, Texas. The purpose of C-STEM Teacher and Student Support Services, Inc. is to provide hands-on support services that encourage schools, organizations and families to improve academic achievement and socioemotional development through project-based learning in communication, science, technology, engineering, and mathematics (CSTEM) in grades 4-12.

  6. Ca2+ signaling in human induced pluripotent stem cell-derived cardiomyocytes (iPS-CM) from normal and catecholaminergic polymorphic ventricular tachycardia (CPVT)-afflicted subjects

    PubMed Central

    Zhang, X.-H.; Haviland, S.; Wei, H.; Šari?, T.; Fatima, A.; Hescheler, J.; Cleemann, L.; Morad, M.

    2013-01-01

    Derivation of cardiomyocytes from induced pluripotent stem cells (iPS-CMs) allowed us to probe the Ca2+-signaling parameters of human iPS-CMs from healthy- and catecholaminergic polymorphic ventricular tachycardia (CPVT1)-afflicted individuals carrying a novel point mutation p.F2483I in ryanodine receptors (RyR2). iPS-CMs were dissociated on day 30–40 of differentiation and patch-clamped within 3–6 days. Calcium currents (ICa) averaged ~8 pA/pF in control and mutant iPS-CMs. ICa-induced Ca2+-transients in control and mutant cells had bell-shaped voltage-dependence similar to that of ICa, consistent with Ca2+-induced Ca2+-release (CICR) mechanism. The ratio of ICa-activated to caffeine-triggered Ca2+-transients was ~0.3 in both cell types. Caffeine-induced Ca2+-transients generated significantly smaller Na+–Ca2+ exchanger current (INCX) in mutant cells, reflecting their smaller Ca2+-stores. The gain of CICR was voltage-dependent as in adult cardiomyocytes. Adrenergic agonists enhanced ICa, but differentially altered the CICR gain, diastolic Ca2+, and Ca2+-sparks in mutant cells. The mutant cells, when Ca2+-overloaded, showed longer and wandering Ca2+-sparks that activated adjoining release sites, had larger CICR gain at ?30 mV yet smaller Ca2+-stores. We conclude that control and mutant iPS-CMs express the adult cardiomyocyte Ca2+-signaling phenotype. RyR2 F2483I mutant myocytes have aberrant unitary Ca2+-signaling, smaller Ca2+-stores, higher CICR gains, and sensitized adrenergic regulation, consistent with functionally altered Ca2+-release profile of CPVT syndrome. PMID:23684427

  7. "My favourite subject is maths. For some reason no-one really agrees with me": student perspectives of mathematics teaching and learning in the upper primary classroom

    NASA Astrophysics Data System (ADS)

    Attard, Catherine

    2011-09-01

    The levels of engagement in mathematics experienced by students during the middle years of schooling (Years 5 to 8 in New South Wales) has been of concern in Australia for some years. Lowered engagement in school has been attributed to factors such as inappropriate teaching strategies, curricula that is unchallenging and irrelevant, and cultural and technological conditions that continue to evolve (Sullivan et al. Australian Journal of Education 53(2):176-191, 2009). There is currently a gap in this field of research in terms of a lack of longitudinal studies conducted in an Australian context that feature students' voices and their perceptions of mathematics teaching and learning during the middle years. As part of a qualitative longitudinal case study spanning 3 school years, 20 students in their final year of primary school (aged between 11 and 12 years) were asked to provide their views on mathematics teaching and learning. The aim of the study was to explore the students' perspectives of mathematics teaching and learning to discover pedagogies that engage the students. During focus group discussions and individual interviews the students discussed qualities of a "good" mathematics teacher and aspects of "good" lessons. These were found to resonate well with current Australian quality teaching frameworks. The findings of this study indicate that students in the middle years are critically aware of pedagogies that lead to engagement in mathematics, and existing standards and frameworks should be used as a starting point for quality teaching of mathematics.

  8. Perceptions, Engagement, and Practices of Teachers Seeking Professional Development in Place-Based Integrated STEM

    ERIC Educational Resources Information Center

    Nadelson, Louis S.; Seifert, Anne

    2013-01-01

    As science, technology, engineering, and mathematics (STEM) continue to grow in economic and social importance, it is critical that citizenry are prepared to be STEM literate. Furthermore, the workforce demands on STEM necessitate students seeking STEM degrees and pursuing STEM careers. Primary and secondary (K-12) teachers play an important role…

  9. Scholarships for Science, Technology, Engineering, and Mathematics Department of Technology and Society, College of Engineering and Applied Sciences

    E-print Network

    Ge, Qiaode Jeff

    , and Mathematics (S-STEM) are sponsored by grants from the National Science Foundation. S-STEM I award #DUE 0630719Scholarships for Science, Technology, Engineering, and Mathematics (S-STEM) Department. S-STEM II award #DUE 0849783 Award Description- There are two different S-STEM awards available

  10. STEM Education at the University of Colorado at Boulder Congressional Briefing, Otero and Finkelstein, 12 Aug 2010 1

    E-print Network

    Finkelstein, Noah

    STEM Education at the University of Colorado at Boulder Congressional Briefing, Otero, Engineering, Mathematics (STEM) at the University of Colorado Boulder Valerie Otero and Noah Finkelstein) Higher education & research #12;STEM Education at the University of Colorado at Boulder Congressional

  11. Pathways to Science: STEM

    NSDL National Science Digital Library

    Sponsored by NASA and the National Science Foundation, the Pathways to Science Project was created by the Institute for Broadening Participation to support "pathways to the STEM fields: science, technology, engineering, and mathematics." The project works on connecting underrepresented groups with STEM programs, funding, mentoring, and resources. The "Students" area features a sign-in area where students can sign up to receive targeted emails that will inform them of new STEM-focused scholarship and mentoring opportunities. The "Programs" area features a database of over 1500 programs designed for K-8 students, college educators, and undergraduate students. Additionally, the site also includes a "News" area where users can learn about recent success stories from universities around the United States, along with the particulars of upcoming conferences and seminars.

  12. Gender Differences in Science, Technology, Engineering, and Mathematics (STEM) Interest, Credits Earned, and NAEP Performance in the 12th Grade. Stats in Brief. NCES 2015-075

    ERIC Educational Resources Information Center

    Cunningham, Brittany C.; Hoyer, Kathleen Mulvaney; Sparks, Dinah

    2015-01-01

    As technical and scientific innovation continue to drive the global economy, educators, policymakers, and scientists seek to promote students' interest and achievement in the STEM fields to maintain the nation's competitive position (National Academy of Sciences 2006; National Science Board 2007; President's Council of Advisors on…

  13. Iowa Mathematics and Science Education Partnership: For Parents

    NSDL National Science Digital Library

    The Iowa Mathematics and Science Education Partnership (IMSEP) encourages students of all ages to pursue the study or teaching of Science, Technology, Engineering and Mathematics (STEM) subjects. The study of these subjects will help them compete for the 6.3 million jobs requiring such skills, which will be in existence around the globe by 2014. Visitors to this website who have children that are in grades K-12 or an institute of higher education in Iowa, or any other part of the United States, will find a great resources to inspire "children towards STEM fields, preparing them to tackle tomorrow's challenges." The "How to Encourage" link is great for parents and caregivers who wish to encourage attitudes and aptitudes toward STEM subjects. An A to Z list is provided, and it includes "Grow" crystals in a jar, and "Identify" the trees in the neighborhood. Visitors will find the "Resources" link comprised of dozens of pages of games, videos, and projects, such as "Computer Science Unplugged!", which provides games and puzzles involving "cards, string, crayons, and lots of running around".

  14. Attracting STEM Talent: Do STEM Students Prefer Traditional or Work/Life-Interaction Labs?

    PubMed Central

    DeFraine, William C.; Williams, Wendy M.; Ceci, Stephen J.

    2014-01-01

    The demand for employees trained in science, technology, engineering, and mathematics (STEM) fields continues to increase, yet the number of Millennial students pursuing STEM is not keeping pace. We evaluated whether this shortfall is associated with Millennials' preference for flexibility and work/life-interaction in their careers-a preference that may be inconsistent with the traditional idea of a science career endorsed by many lab directors. Two contrasting approaches to running STEM labs and training students were explored, and we created a lab recruitment video depicting each. The work-focused video emphasized the traditional notions of a science lab, characterized by long work hours and a focus on individual achievement and conducting research above all else. In contrast, the work/life-interaction-focused video emphasized a more progressive view – lack of demarcation between work and non-work lives, flexible hours, and group achievement. In Study 1, 40 professors rated the videos, and the results confirmed that the two lab types reflected meaningful real-world differences in training approaches. In Study 2, we recruited 53 current and prospective graduate students in STEM fields who displayed high math-identification and a commitment to science careers. In a between-subjects design, they watched one of the two lab-recruitment videos, and then reported their anticipated sense of belonging to and desire to participate in the lab depicted in the video. Very large effects were observed on both primary measures: Participants who watched the work/life-interaction-focused video reported a greater sense of belonging to (d?=?1.49) and desire to participate in (d?=?1.33) the lab, relative to participants who watched the work-focused video. These results suggest Millennials possess a strong desire for work/life-interaction, which runs counter to the traditional lab-training model endorsed by many lab directors. We discuss implications of these findings for STEM recruitment. PMID:24587044

  15. STEM Leadership Qualification: Tomorrow's Leaders Today

    ERIC Educational Resources Information Center

    Williams, Chris

    2009-01-01

    This article features the Science, Technology, Engineering and Mathematics (STEM) Leadership Qualification programme, developed by the Centre for Science Education (CSE) at Sheffield Hallam University in collaboration with Edexcel, which sets out to develop leadership skills and capabilities through contexts in STEM. With six units to complete…

  16. In Pursuit of Sustainable STEM Certification Programs

    ERIC Educational Resources Information Center

    Schuster, Dwight

    2013-01-01

    The belief that STEM (science, technology, engineering, and mathematics) education initiatives have the potential to stimulate both regional and national economies has prompted policy makers and funding agencies to revisit how STEM teachers are recruited, prepared, and retained. This article investigates the impact of a unique prescholarship…

  17. Considerations for Teaching Integrated STEM Education

    ERIC Educational Resources Information Center

    Stohlmann, Micah; Moore, Tamara J.; Roehrig, Gillian H.

    2012-01-01

    Quality Science, Technology, Engineering, and Mathematics (STEM) education is vital for the future success of students. Integrated STEM education is one way to make learning more connected and relevant for students. There is a need for further research and discussion on the knowledge, experiences, and background that teachers need to effectively…

  18. STEM Guitar Project

    NSDL National Science Digital Library

    This ATE professional development project is a collaboration between STEM faculty teams from Butler County Community College (Butler, PA), Purdue University (West Lafayette, IN), Sinclair Community College (Dayton, OH), Ventura College (Ventura, CA), College of the Redwoods (Eureka, Ca.), as well as high school STEM faculty in each of the states involved. Faculty teams at the respective locations are working together to design, build, and analyze solid body electric guitars as a means of learning applied concepts of science, technology, engineering, mathematics, and as a means of understanding product lifecycle management. This experience is providing teachers and students an accurate simulation of the collaborative design and rapid manufacturing processes routinely used in business and industry. Over 150 STEM faculty members from high schools and community colleges are participating in an intense five-day Summer Professional Development Program and are having extensive academic year follow-up activities. The teacher participants are using these processes and simulations in their classrooms to enhance the STEM laboratory learning experience. Nearly 5000 students are learning about cross-disciplinary STEM problem solving that is becoming increasingly important for new design technicians to experience.On the site, visitors can find curriculum materials including classroom tools and information on guitar fabrication. There are also details of upcoming workshops and professional development opportunities. In the Storefront section, visitors can learn about how to purchase a guitar kit.

  19. Introduction to Mathematical Logic

    E-print Network

    Landweber, Laura

    Introduction to Mathematical Logic Alonzo Church Logic is sometimes called the foundation Church was a pioneer in the field of mathematical logic,whose contributions to number theory Princeton book, Introduction to Mathematical Logic, de- fined its subject for a generation. Originally

  20. Colorful Mathematics

    NSDL National Science Digital Library

    Funded by Industry Canada's SchoolNet initiative with the cooperation of the Canadian Mathematical Society, Colorful Mathematics takes a game-oriented approach to teaching K-12 mathematics. The project has developed five coloring games that teach children about problem solving, and pattern identification, which "are all at the very heart of mathematics." The coloring approach makes difficult graph concepts "that are still the subject of active research by mathematicians, computer scientists and industry researchers" more accessible to children. The software program, which is available for free from this website, is set up to check for mistakes and challenge students to improve on their results. A Teacher's Corner section gives an overview of the games, "some sample questions for discussion with the curious student," and an overview of terminology used in the software program. The website is also available in French.

  1. Implementation of STEM Education Policy: Challenges, Progress, and Lessons Learned

    ERIC Educational Resources Information Center

    Johnson, Carla C.

    2012-01-01

    This is a case study of the implementation of state STEM (science, technology, engineering, and mathematics) policy over the period of the first 18 months of building a regional STEM partnership. Fullan's change theory is the framework used to determine progress and associated challenges with building a regional STEM educational partnership and…

  2. Specialized Public High Schools of Science, Mathematics, and Technology and the STEM Pipeline: What Do We Know Now and What Will We Know in 5 Years?

    ERIC Educational Resources Information Center

    Subotnik, Rena F.; Tai, Robert H.; Rickoff, Rochelle; Almarode, John

    2010-01-01

    Specialized public high schools of science, mathematics, and technology are commonly viewed as the "crown jewel" of their respective school districts and, many times, of their respective states. These schools are intended to coalesce the most academically talented, science-focused students in each district or state and typically draw excellent…

  3. Accessing Stem-Focused Education: Factors That Contribute to the Opportunity to Attend Stem High Schools across the United States

    ERIC Educational Resources Information Center

    Rogers-Chapman, M. Felicity

    2014-01-01

    In recent years, policy makers, researchers, and educators have focused on the preparation of individuals in STEM (science, technology, engineering, and mathematics) fields. One popular policy lever is STEM-focused high schools. The purpose of this study is to identify which student populations have access to STEM secondary schools. By comparing…

  4. STEM Attrition: College Students' Paths into and out of STEM Fields. Statistical Analysis Report. NCES 2014-001

    ERIC Educational Resources Information Center

    Chen, Xianglei

    2013-01-01

    Producing sufficient numbers of graduates who are prepared for science, technology, engineering, and mathematics (STEM) occupations has become a national priority in the United States. To attain this goal, some policymakers have targeted reducing STEM attrition in college, arguing that retaining more students in STEM fields in college is a…

  5. STEM Education: Proceed with Caution

    ERIC Educational Resources Information Center

    Williams, P. John

    2011-01-01

    The STEM (science, technology, engineering and mathematics) movement has developed from a non-educational rationale. Although some think it may enliven the delivery of maths and science in classrooms, the social and economic rationales are those that have initiated this movement. Spurred on by the global financial crisis, it is hoped that…

  6. STEM and Career Exploratory Classes

    ERIC Educational Resources Information Center

    Chase, Darrell

    2010-01-01

    Districts face increasing pressure to improve students' mastery of curriculum in the fields of science, technology, engineering and mathematics (STEM). Yet the number of students enrolling in science and math courses drops dramatically in middle and high school. At Sylvester Middle School, Chinook Middle School and Cascade Middle School of the…

  7. Developing the STEM Education Pipeline

    ERIC Educational Resources Information Center

    ACT, Inc., 2006

    2006-01-01

    For almost 50 years, ACT has played a pivotal role in promoting student access into and success in science, technology, engineering, and mathematics (STEM) careers. Through academic and career assessments, career development tools, and extensive research, they have helped inform students, parents, teachers, career counselors, employers, and…

  8. Using Mathematics in Science: Working with Your Mathematics Department

    ERIC Educational Resources Information Center

    Lyon, Steve

    2014-01-01

    Changes to the mathematics and science curriculums are designed to increase rigour in mathematics, and place greater emphasis on mathematical content in science subjects at key stages 3, 4 and 5 (ages 11-18). One way to meet the growing challenge of providing increased emphasis on mathematics in the science curriculum is greater collaboration…

  9. QR-STEM: Energy and Environment as a Context for Improving QR and STEM Understandings of 6-12 Grade Teachers II. The Quantitative Reasoning

    NASA Astrophysics Data System (ADS)

    Mayes, R.; Lyford, M. E.; Myers, J. D.

    2009-12-01

    The Quantitative Reasoning in STEM (QR STEM) project is a state level Mathematics and Science Partnership Project (MSP) with a focus on the mathematics and statistics that underlies the understanding of complex global scientific issues. This session is a companion session to the QR STEM: The Science presentation. The focus of this session is the quantitative reasoning aspects of the project. As students move from understandings that range from local to global in perspective on issues of energy and environment, there is a significant increase in the need for mathematical and statistical conceptual understanding. These understandings must be accessible to the students within the scientific context, requiring the special understandings that are endemic within quantitative reasoning. The QR STEM project brings together interdisciplinary teams of higher education faculty and middle/high school teachers to explore complex problems in energy and environment. The disciplines include life sciences, physics, chemistry, earth science, statistics, and mathematics. These interdisciplinary teams develop open ended performance tasks to implement in the classroom, based on scientific concepts that underpin energy and environment. Quantitative reasoning is broken down into three components: Quantitative Literacy, Quantitative Interpretation, and Quantitative Modeling. Quantitative Literacy is composed of arithmetic concepts such as proportional reasoning, numeracy, and descriptive statistics. Quantitative Interpretation includes algebraic and geometric concepts that underlie the ability to interpret a model of natural phenomena which is provided for the student. This model may be a table, graph, or equation from which the student is to make predictions or identify trends, or from which they would use statistics to explore correlations or patterns in data. Quantitative modeling is the ability to develop the model from data, including the ability to test hypothesis using statistical procedures. We use the term model very broadly, so it includes visual models such as box models, as well as best fit equation models and hypothesis testing. One of the powerful outcomes of the project is the conversation which takes place between science teachers and mathematics teachers. First they realize that though they are teaching concepts that cross their disciplines, the barrier of scientific language within their subjects restricts students from applying the concepts across subjects. Second the mathematics teachers discover the context of science as a means of providing real world situations that engage students in the utility of mathematics as a tool for solving problems. Third the science teachers discover the barrier to understanding science that is presented by poor quantitative reasoning ability. Finally the students are engaged in exploring energy and environment in a manner which exposes the importance of seeing a problem from multiple interdisciplinary perspectives. The outcome is a democratic citizen capable of making informed decisions, and perhaps a future scientist.

  10. Perceptions of Mathematics and Gender

    ERIC Educational Resources Information Center

    Kloosterman, Peter; Tassel, Janet; Ponniah, Ann G.; Esses, N. Kathryn

    2008-01-01

    This study examined students' perceptions about gender and the subject of mathematics, as well as gender and mathematics learning. Secondary school students and pre-service elementary teachers were surveyed using the Mathematics as a Gendered Domain and Who and Mathematics instruments developed by Leder and Forgasz (Leder, 2001). The data indicate…

  11. Celebrating Mathematics All Year 'Round

    ERIC Educational Resources Information Center

    Daire, Sandra Arguelles

    2010-01-01

    Celebrating mathematics should be a yearlong event in which students in mathematics classes of all levels engage in mathematics activities and competitions that will encourage growth in mathematical knowledge, enthusiasm for the subject, and collaboration among students of different abilities and backgrounds. Pi Day and Pi Week festivities--a good…

  12. KUSPACE: Embedding Science Technology and Mathematics Ambassador Activities in the Undergradiuate Engineering Curriculum

    NASA Astrophysics Data System (ADS)

    Welch, C.; Osborne, B.

    The UK national STEM Ambassadors programme provides inspiring role models for school students in science, technology, engineering, mathematics (STEM) subjects. STEMNET, the national body responsible for STEM Ambassa- dors aims to provide more than 27,000 STEM Ambassadors nationwide by the end of 2011. This paper reports on a project at Kingston University to embed STEM Ambassador training and activity in Year 2 of the undergraduate Aerospace Engineering, Astronautics and Space Technology degree. The project, known as KUSPACE (Kingston University Students Providing Amazing Classroom Experiences), was conceived to develop students' communication, planning and presentation skills and build links between different cohort years, while providing a valuable contribution to local primary schools' STEM programmes and simultaneously raising the public engagement profile of the university. This paper describes the pedagogical conception of the KUSPACE, its implementation in the curriculum, the delivery of it in the university and schools and its effect on the undergraduate students, as well as identifying good practice and drawing attention to lessons learned.STEMNET (www.stemnet.org) is the UK's Science, Technol- ogy, Engineering and Mathematics Network. Working with a broad range of UK partners and funded by the UK govern- ment's Department for Business Innovation and Skills, STEMNET plays a significant role in ensuring that five to nineteen year olds and their teachers can experience a wide range of activities and schemes which enhance and enrich the school curriculum [1]. Covering all aspects of Science, Tech- nology, Engineering and Maths (STEM), these activities and schemes are designed both to increase STEM awareness and literacy in the young people and also to encourage more of them to undertake post-16 STEM qualifications and associated careers [2]. STEMNET operates through forty-five local con- tract holders around the UK which help the network deliver its programmes to schools and organisations in their particular areas, mainly through the STEM Ambassador Programme (see below) and the Schools STEM Advisory Network.In support of its vision - `To increase young people's choice and chances through science, technology, engineering, and mathematics ' - STEMNET seeks to be a recognised leader in enabling all young people to achieve their potential in STEM by:

  13. STEAM: A National Study of the Integration of the Arts Into STEM Instruction and its Impact on Student Achievement

    NASA Astrophysics Data System (ADS)

    Rabalais, Mark E.

    The purpose of this study is to examine the relationship between exposure to the arts and performance in Science, Technology, Engineering, and Math (STEM) subjects. STEAM, an integration of arts-based instruction into science and math related fields, is viewed as an alternative to traditional STEM academies. The literature briefly examines the current state of STEM programs and the deficiencies in graduate quality and quantity and the call from employers for a more innovative workforce. Advocates for STEAM argue for arts as a means to improve creativity, collaboration, risk-taking and exploration. Arguments against arts in STEM are grounded in political opinions concerning arts funding and logistical complications of implementing STEAM. However, some schools and STEM programs have embraced the STEAM premise and have begun to integrate arts into the traditional curriculum. The 2009 National Assessment of Educational Progress (NAEP) dataset was utilized to determine a correlation between the number of arts credits earned and mathematics/science achievement. Results from the NAEP dataset indicated a correlation between the amount of arts credits and increased achievement scores in science and math. The same correlation was found when controlling for demographic factors such as gender, race, and socio-economic status (SES). Overall, the arts' greatest impact was on students identified as "at-risk" or underrepresented in STEM fields. Controlling for these variable groups, one can note the quantifiable differences in scores. Overall, findings of the study provide empirical support for the addition of arts in STEM.

  14. Relationship of inquiry-based learning elements on changes in middle school students' science, technology, engineering, and mathematics (stem) beliefs and interests 

    E-print Network

    Degenhart, Heather Shannon

    2009-05-15

    with the inquiry elements, lessons involved fundamental concepts of the subject; lessons were designed to engage students as members of a learning community; lessons promoted strong conceptual understanding; and elements of abstraction were encouraged when...

  15. Stem Cells

    Microsoft Academic Search

    Gwen Lomberk

    2007-01-01

    In this issue, ‘Pancreatology and the Web’ focuses on stem cell research, one of the 21st century’s most exciting areas of science. Stem cell research has been advancing our knowledge about how an organism develops from a single cell and how healthy cells replace damaged cells in adult organisms. Although still in its infancy, this field also offers a revolutionary

  16. Alice Hagar Curriculum Resource Center: STEM Page

    NSDL National Science Digital Library

    2007-08-03

    The Science, Technology, Engineering, Math (STEM) web site of the Alice Hagar Curriculum Resources Center provides resources to PK-12 teachers, pre-service teachers, librarians, and others interested in STEM education. Materials include national, state, and AAAS educational standards for science, mathematics, and technology, and a set of lists of books on STEM topics. There is also a set of links to STEM-related websites on educational reform, effective teaching and learning, professional organizations, education and outreach, and other topics, and information on outreach activities of the University of Wisconsin-Lacrosse Murphy Library.

  17. Connecting the STEM Dots: Measuring the Effect of an Integrated Engineering Design Intervention

    ERIC Educational Resources Information Center

    Hernandez, Paul R.; Bodin, Ralph; Elliott, Jonathan W.; Ibrahim, Badaruddin; Rambo-Hernandez, Karen E.; Chen, Thomas W.; de Miranda, Michael A.

    2014-01-01

    Recent publications have elevated the priority of increasing the integration of Science, Technology, Engineering, and Mathematics (STEM) content for K-12 education. The STEM education community must invest in the development of valid and reliable to scales to measure STEM content, knowledge fusion, and perceptions of the nature of STEM. This brief…

  18. Effects of Transferring to STEM-Focused Charter and Magnet Schools on Student Achievement

    ERIC Educational Resources Information Center

    Judson, Eugene

    2014-01-01

    There have been strong calls to action in recent years to promote both school choice and the learning of science, technology, engineering, and mathematics (STEM). This has led to the burgeoning development of STEM-focused schools. Nine STEM-focused charter and 2 STEM-focused magnet schools that serve elementary-aged students were examined to…

  19. Women in the Academy: Female Leadership in STEM Education and the Evolution of a Mentoring Web

    ERIC Educational Resources Information Center

    Gorman, Susan T.; Durmowicz, Meredith C.; Roskes, Ellen M.; Slattery, Susan P.

    2010-01-01

    Women continue to be underrepresented in science, technology, engineering, and mathematics (STEM) fields and in STEM leadership positions. According to the most recent data available from the National Science Foundation, in academia only 31% of full-time STEM faculty and 27% of STEM deans and department heads are women. By comparison at Stevenson…

  20. The Development of the STEM Career Interest Survey (STEM-CIS)

    ERIC Educational Resources Information Center

    Kier, Meredith W.; Blanchard, Margaret R.; Osborne, Jason W.; Albert, Jennifer L.

    2014-01-01

    Internationally, efforts to increase student interest in science, technology, engineering, and mathematics (STEM) careers have been on the rise. It is often the goal of such efforts that increased interest in STEM careers should stimulate economic growth and enhance innovation. Scientific and educational organizations recommend that efforts to…

  1. From Fearing STEM to Playing with It: The Natural Integration of STEM into the Preschool Classroom

    ERIC Educational Resources Information Center

    Torres-Crespo, Marisel N.; Kraatz, Emily; Pallansch, Lindsey

    2014-01-01

    The article describes the process of developing and implementing a STEM Summer Camp that allowed Preschoolers to experiment and investigate with materials while learning basic concepts of science, technology, engineering, and mathematics (STEM) through play as part of the educational process. The participants were presented with problems that they…

  2. The perceptions of pre-service and in-service teachers regarding a project-based STEM approach to teaching science.

    PubMed

    Siew, Nyet Moi; Amir, Nazir; Chong, Chin Lu

    2015-01-01

    Whilst much attention has focused on project-based approaches to teaching Science, Technology, Engineering and Mathematics (STEM) subjects, little has been reported on the views of South-East Asian science teachers on project-based STEM approaches. Such knowledge could provide relevant information for education training institutions on how to influence innovative teaching of STEM subjects in schools. This article reports on a study that investigated the perceptions of 25 pre-service and 21 in-service Malaysian science teachers in adopting an interdisciplinary project-based STEM approach to teaching science. The teachers undertook an eight hour workshop which exposed them to different science-based STEM projects suitable for presenting science content in the Malaysian high school science syllabus. Data on teachers' perceptions were captured through surveys, interviews, open-ended questions and classroom discussion before and at the end of the workshop. Study findings showed that STEM professional development workshops can provide insights into the support required for teachers to adopt innovative, effective, project-based STEM approaches to teaching science in their schools. PMID:25674494

  3. STEM Equity Pipeline

    NSDL National Science Digital Library

    As a past president of the National Academy of Engineering put it, "A consequence of lack of diversity...[is that] we pay an opportunity cost, a cost in designs not thought of, in solutions not produced." Thus, in an effort to increase the diversity of the Science, Technology, Engineering and Mathematics (STEM) workforce, STEM Equity Pipeline was developed. The "Online Resources" section of their website offers visitors a wide variety of resources, including "pamphlets/brochures", "posters", "scholarships" and "videos". The "Curriculum" resource is particularly rich and it offers over 50 websites that contain single activities, whole lesson plans or hands-on explorations. Some of the titles visitors might find valuable are "Some Disassembly Required", which employs reverse engineering (or taking things apart) to learn how they work, "Teaching Tool for Introductory Programming Concepts", to teach students computer programming in a 3D environment, and "Home Science Adventures", science lessons and plans for home- schoolers.

  4. Cancerous stem cells: deviant stem cells with cancer-causing misbehavior.

    PubMed

    Chandler, Julie M; Lagasse, Eric

    2010-01-01

    Stem cells maintain homeostasis in adult tissues via self-renewal and generation of terminally differentiated cells. Alterations in this intricate balance can result in disease. It has become increasingly evident that cancer can be initiated at the level of stem cells. Therefore, understanding what causes stem cells to become cancerous may lead to new therapeutic approaches. Multiple signaling pathways ultimately affect stem cell survival and proliferation, thus maintaining homeostasis in the gut. Changes in these pathways could perturb normal stem cell behavior, leading to cancerous stem cells. In addition, cancerous stem cells show resistance to current therapies and may lead to a dangerous selection process resulting in recurrence and metastasis. Genomic instability, the driving force of mutation and resistance, may give cancerous stem cells an adaptive advantage, especially when subjected to cancer therapies. Targeting the unique characteristics of cancerous stem cells to promote either terminal differentiation or destruction would effectively eradicate cancer and improve patient care and survival. PMID:20587011

  5. Active learning increases student performance in science, engineering, and mathematics

    E-print Network

    Hutcheon, James M.

    Active learning increases student performance in science, engineering, and mathematics Scott the hypothesis that lecturing maximizes learning and course performance, we metaanalyzed 225 studies science, technology, engineer- ing, and mathematics (STEM) courses under traditional lecturing versus

  6. "If I had to pick any subject, it wouldn't be maths": foundations for engagement with mathematics during the middle years

    NASA Astrophysics Data System (ADS)

    Attard, Catherine

    2013-12-01

    This article is a report on a longitudinal case study that investigated the problem of lowered engagement with mathematics and students' perspectives of the factors that influenced their engagement during the middle years of schooling. The article provides a synthesis of the entire study and a summary of its findings. In order to address the research question a group of 20 students from within the same school cohort participated in the study spanning three school years from their final year of primary school, to their second year of secondary school. Data was collected through interviews, focus group discussions, and classroom observations. A major finding of this study was that positive pedagogical relationships between teachers and their students must be developed as a foundation for sustained engagement.

  7. Identifying and Nurturing Future Innovators in Science, Technology, Engineering, and Mathematics: A Review of Findings From the Study of Mathematically Precocious Youth

    Microsoft Academic Search

    Camilla Persson Benbow

    2012-01-01

    Calls to strengthen education in science, technology, engineering, and mathematics (STEM) are underscored by employment trends and the importance of STEM innovation for the economy. The Study of Mathematically Precocious Youth (SMPY) has been tracking over 5,000 talented individuals longitudinally for 40 years, throwing light on critical questions in talent identification and development in STEM. SMPY includes individuals identified in

  8. Modeling Successful Inclusive STEM High Schools: An Analysis of Students’ College Entry Indicators in Texas 

    E-print Network

    Erdogan, Niyazi

    2014-07-29

    and Engineering SES Socioeconomic Status STAAR State of Texas Assessments of Academic Readiness STEM Science, Technology, Engineering, and Mathematics TAKS Texas Assessment of Knowledge and Skills TIMSS Trends in International Mathematics and Science Study...

  9. Free online mathematics books

    NSDL National Science Digital Library

    Freebookcentre.net's mathematics section contains links to many technical books offered free online, either as html pages or downloadable pdfs. Books are arranged by subject: algebra, geometry, calculus, differential equations, discrete mathematics, linear algebra, number theory, differential algebra, probability theory, trigonometry, and others.

  10. The Relationships among High School STEM Learning Experiences and Students' Intent to Declare and Declaration of a STEM Major in College

    ERIC Educational Resources Information Center

    Bottia, Martha Cecilia; Stearns, Elizabeth; Mickelson, Roslyn Arlin; Moller, Stephanie; Parker, Ashley Dawn

    2015-01-01

    Background/Context: Schools are integral to augmenting and diversifying the science, technology, engineering, and mathematics (STEM) workforce. This is because K-12 schools can inspire and reinforce students' interest in STEM, in addition to academically preparing them to pursue a STEM career. Previous literature emphasizes the importance of…

  11. Stem cell population asymmetry can reduce rate of replicative aging

    E-print Network

    Hormoz, Sahand

    2013-01-01

    Cycling tissues such as the intestinal epithelium, germ line, and hair follicles, require a constant flux of differentiated cells. These tissues are maintained by a population of stem cells, which generate differentiated progenies and self-renew. Asymmetric division of each stem cell into one stem cell and one differentiated cell can accomplish both tasks. However, in mammalian cycling tissues, some stem cells divide symmetrically into two differentiated cells and are replaced by a neighbor that divides symmetrically into two stem cells. Besides this heterogeneity in fate (population asymmetry), stem cells also exhibit heterogenous proliferation-rates; in the long run, however, all stem cells proliferate at the same average rate (equipotency). We construct and simulate a mathematical model based on these experimental observations. We show that the complex steady-state dynamics of population-asymmetric stem cells reduces the rate of replicative aging of the tissue --potentially lowering the incidence of somati...

  12. 2015 DHS HS-STEM Summer Internship Program

    E-print Network

    Nuclear Detection Office, Naval Research Laboratory, Engineer Research and Development Center, Federal2015 DHS HS-STEM Summer Internship Program U.S. citizenship required Application deadline limited travel expenses Areas of Research: Engineering, computer science, mathematics, physics, chemistry

  13. Public Views on the Gendering of Mathematics and Related Careers: International Comparisons

    ERIC Educational Resources Information Center

    Forgasz, Helen; Leder, Gilah; Tan, Hazel

    2014-01-01

    Mathematics continues to be an enabling discipline for Science, Technology, Engineering, and Mathematics (STEM)-based university studies and related careers. Explanatory models for females' underrepresentation in higher level mathematics and STEM-based courses comprise learner-related and environmental variables--including societal beliefs.…

  14. Idaho Science, Technology, Engineering and Mathematics Overview

    SciTech Connect

    None

    2011-01-01

    Idaho National Laboratory has been instrumental in establishing the Idaho Science, Technology, Engineering and Mathematics initiative -- i-STEM, which brings together industry, educators, government and other partners to provide K-12 teachers with support, materials and opportunities to improve STEM instruction and increase student interest in technical careers. You can learn more about INL's education programs at http://www.facebook.com/idahonationallaboratory.

  15. Idaho Science, Technology, Engineering and Mathematics Overview

    ScienceCinema

    None

    2013-05-28

    Idaho National Laboratory has been instrumental in establishing the Idaho Science, Technology, Engineering and Mathematics initiative -- i-STEM, which brings together industry, educators, government and other partners to provide K-12 teachers with support, materials and opportunities to improve STEM instruction and increase student interest in technical careers. You can learn more about INL's education programs at http://www.facebook.com/idahonationallaboratory.

  16. The Mathematical Atlas

    NSDL National Science Digital Library

    Rusin, Dave.

    Originally started by Professor Dave Rusin of Northern Illinois University, the Mathematical Atlas is now a very large "collection of articles about aspects of mathematics at and above the university level, but (usually) not at the level of current research." The amount of material is immense; fortunately, there are multiple ways of browsing the site. Subjects are mainly geared toward modern mathematics, and there are currently 97 different areas covered. Each article gives a basic introduction to the subject, applications and related fields, and selected topics. There are also many references to resources, both books and online, that discuss the topic in greater detail.

  17. Exploring the Relationship Between Students' Visual Spatial Abilities and Comprehension in STEM Fields

    NASA Astrophysics Data System (ADS)

    Cid, Ximena; Lopez, Ramon

    2011-10-01

    It is well known that student have difficulties with concepts in physics and space science as well as other STEM fields. Some of these difficulties may be rooted in student conceptual errors, whereas other difficulties may arise from issues with visual cognition and spatial intelligence. It has also been suggested that some aspects of high attrition rates from STEM fields can be attributed to students' visual spatial abilities. We will be presenting data collected from introductory courses in the College of Engineering, Department of Physics, Department of Chemistry, and the Department of Mathematics at the University of Texas at Arlington. These data examine the relationship between students' visual spatial abilities and comprehension in the subject matter. Where correlations are found to exist, visual spatial interventions can be implemented to reduce the attrition rates.

  18. Engaging Students with Subject Matter Experts and Science Content Through Classroom Connection Webinars

    NASA Technical Reports Server (NTRS)

    Graff, P. V.; Rampe, E.; Stefanov, W. L.; Vanderbloemen, L.; Higgins, M.

    2015-01-01

    Connecting students and teachers in classrooms with science, technology, engineering, and mathematics (STEM) experts provides an invaluable opportunity. Subject matter experts can share exciting science and science-related events as well as help to "translate" science being conducted by professionals. The Expedition Earth and Beyond (EEAB) Program, facilitated by the Astromaterials Research and Exploration Science (ARES) Division at the NASA Johnson Space Center, has been providing virtual access to subject matter experts through classroom connection webinars for the last five years. Each year, the reach of these events has grown considerably, especially over the last nine months. These virtual connections not only help engage students with role models, but are also designed to help teachers address concepts and content standards they are required to teach. These events also enable scientists and subject matter experts to help "translate" current science in an engaging and understandable manner while actively involving classrooms in the journey of science and exploration.

  19. Orihedra: Mathematical sculptures in paper

    Microsoft Academic Search

    Michael Eisenberg; Ann Nishioka

    1996-01-01

    Mathematics, as a subject dealing with abstract concepts, poses a special challenge for educators. In students' experience, the subject is often associated with (potentially) unflattering adjectives — “austere”, “remote”, “depersonalized”, and so forth. This paper describes a computer program named HyperGami whose purpose is to alleviate this harsh portrait of the mathematical enterprise. HyperGami is a system for the construction

  20. Advancing STEM Undergraduate Learning: Preparing the Nation's Future Faculty

    ERIC Educational Resources Information Center

    Pfund, Christine; Mathieu, Robert; Austin, Ann; Connolly, Mark; Manske, Brian; Moore, Katie

    2012-01-01

    Graduate students and post-doctoral scholars at research universities will shape the future of undergraduate education in the natural and social sciences, technology, engineering, and mathematics (the STEM disciplines) in the United States. In 2009 alone, more than 41,000 doctorates were awarded in STEM fields, and if employment trends hold,…

  1. Report on STEM Graduation and Enrollment Trends. April 2013

    ERIC Educational Resources Information Center

    Jenkins, Rick; Butler, Sharon; Mitchell, Suzanne

    2013-01-01

    The purpose of this report on Arkansas STEM (Science, Technology, Engineering, and Mathematics) program activity is to inform education and policy makers about the need to prepare and graduate more students with degrees in STEM-related fields as defined by the U.S. Immigration and Customs Enforcement (ICE). Arkansas is witnessing a significant…

  2. Report on STEM Graduation and Enrollment Trends. June 2012

    ERIC Educational Resources Information Center

    Jenkins, Rick; Mitchell, Suzanne

    2012-01-01

    The purpose of this report on Arkansas STEM (Science, Technology, Engineering, and Mathematics) program activity is to inform education and policy makers about the need to prepare and graduate more students with degrees in STEM related fields as defined by the U.S. Immigration and Customs Enforcement (ICE). Arkansas is witnessing a significant…

  3. Report on STEM Graduation and Enrollment Trends. February 2014

    ERIC Educational Resources Information Center

    Jenkins, Rick; Butler, Sharon; Mitchell, Suzanne

    2014-01-01

    The purpose of this report on Arkansas STEM (Science, Technology, Engineering, and Mathematics) program activity is to inform education and policy makers about the need to prepare and graduate more students with degrees in STEM related fields as defined by the U.S. Immigration and Customs Enforcement (ICE). Arkansas is witnessing a significant…

  4. Beyond the Pipeline: STEM Pathways for Youth Development

    ERIC Educational Resources Information Center

    Lyon, Gabrielle H.; Jafri, Jameela; St. Louis, Kathleen

    2012-01-01

    As framed by national education policy priorities, the dominant metaphor describing participation and achievement in science, technology, engineering, and mathematics (STEM) is a "pipeline." The STEM workforce requires a "pipeline" of future scientists, engineers, and mathematicians. This pipeline begins in childhood and carries students through…

  5. Diversifying the STEM Pipeline: The Model Replication Institutions Program

    ERIC Educational Resources Information Center

    Cullinane, Jenna

    2009-01-01

    In 2006, the National Science Foundation (NSF) began funding the Model Replication Institutions (MRI) program, which sought to improve the quality, availability, and diversity of science, technology, engineering, and mathematics (STEM) education. Faced with pressing national priorities in the STEM fields and chronic gaps in postsecondary…

  6. S.T.E.M. Initiatives. Research Brief

    ERIC Educational Resources Information Center

    Anderson, David

    2010-01-01

    STEM (Science, Technology, Engineering, Mathematics) initiatives represent an extensive and expanding movement across American education. Nationally, funding for K-12 STEM programs increased from $700 million to almost $1 billion from 2005 to 2007 alone (US DOE, Report of the Academic Competitiveness Council, 2007, p. 51). Although there is a…

  7. STEM Projects: Should We Add the "TEM" to Science?

    ERIC Educational Resources Information Center

    Hall, Angela

    2012-01-01

    A recent curriculum development from the Nuffield Foundation rose to the challenge of producing a set of resources to establish STEM (Science, Technology, Engineering and Mathematics) as a curriculum focus. The result is two STEM cross-curricular projects: "Games," inspired by the London Olympics, and "Futures," a novel approach to sustainable…

  8. Advancing the "E" in K-12 STEM Education

    ERIC Educational Resources Information Center

    Rockland, Ronald; Bloom, Diane S.; Carpinelli, John; Burr-Alexander, Levelle; Hirsch, Linda S.; Kimmel, Howard

    2010-01-01

    Technological fields, like engineering, are in desperate need of more qualified workers, yet not enough students are pursuing studies in science, technology, engineering, or mathematics (STEM) that would prepare them for technical careers. Unfortunately, many students have no interest in STEM careers, particularly engineering, because they are not…

  9. The master degree: A critical transition in STEM doctoral education

    Microsoft Academic Search

    Sheila Edwards Lange

    2006-01-01

    The need to broaden participation in the nation's science, technology, engineering, and mathematics (STEM) undergraduate and graduate programs is currently a matter of national urgency. The small number of women and underrepresented minorities (URM) earning doctoral degrees in STEM is particularly troubling given significant increases in the number of students earning master's degrees since 1990. In the decade between 1990

  10. The STEM Pathway for Women: What Has Changed?

    ERIC Educational Resources Information Center

    Heilbronner, Nancy N.

    2013-01-01

    In previous decades, researchers have identified a gender gap in the careers and academic achievement of men and women in science, technology, engineering, and mathematics (STEM). Recently, it has been suggested that some of these gender gaps no longer exist; however, the picture is more nuanced, for women are represented well in some STEM fields…

  11. Stem cells, cancer, and cancer stem cells

    Microsoft Academic Search

    Tannishtha Reya; Sean J. Morrison; Michael F. Clarke; Irving L. Weissman

    2001-01-01

    Stem cell biology has come of age. Unequivocal proof that stem cells exist in the haematopoietic system has given way to the prospective isolation of several tissue-specific stem and progenitor cells, the initial delineation of their properties and expressed genetic programmes, and the beginnings of their utility in regenerative medicine. Perhaps the most important and useful property of stem cells

  12. Cell Stem Cell Stem Cell States, Fates,

    E-print Network

    Peterson, Carsten

    and Stem Cell Research, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, Lund SE-223 62, Sweden 4Lund Strategic Research Center for Stem Cell Biology and Cell Therapy, LundCell Stem Cell Review Stem Cell States, Fates, and the Rules of Attraction Tariq Enver,1 Martin

  13. Stemming the Stem Cell Setback

    Microsoft Academic Search

    Patrick J. Fleis

    2003-01-01

    This Comment highlights the recent federal funding setbacks in the biotechnology industry and considers the resulting challenges to future research collaboration. After providing a historical background to stem cell technology, Mr. Fleis examines the passionately opposed public responses to the technology's use of embryos and to its future applications. Fleis continues by noting past legislative initiatives that have accelerated the

  14. The Complexities and Challenges Associated with the Implementation of a STEM Curriculum

    ERIC Educational Resources Information Center

    Holstein, Krista A.; Keene, Karen Allen

    2013-01-01

    There have been recent calls for the integration of STEM (science, technology, engineering, and mathematics) in K-12 education. In this collective case study, we describe three teachers' implementations of a new STEM curriculum that integrates mathematics, engineering, and technology. These teachers ranged in their faithfulness to the…

  15. Students Who Demonstrate Strong Talent and Interest in STEM Are Initially Attracted to STEM through Extracurricular Experiences

    ERIC Educational Resources Information Center

    VanMeter-Adams, Amy; Frankenfeld, Cara L.; Bases, Jessica; Espina, Virginia; Liotta, Lance A.

    2014-01-01

    What early experiences attract students to pursue an education and career in science, technology, engineering, and mathematics (STEM)? Does hands-on research influence them to persevere and complete a major course of academic study in STEM? We evaluated survey responses from 149 high school and undergraduate students who gained hands-on research…

  16. Gifted Ethnic Minority Student Participation in Pre-Collegiate STEM Programs: How to Become a STEM Parent

    ERIC Educational Resources Information Center

    Grantham, Tarek C.; Henfield, Malik S.

    2011-01-01

    Today, there are more program options in science, technology, engineering, and mathematics (STEM) than ever before. Because people are living in an age of increasing globalization, advocates of gifted children must understand that involvement in STEM fields is paramount for the children to be competitive in the job market and for the nation to…

  17. Helping Students Succeed within Secondary-Level STEM Content: Using the "T" in STEM to Improve Literacy Skills

    ERIC Educational Resources Information Center

    Kennedy, Michael J.; Wexler, Jade

    2013-01-01

    Literacy and other content-specific demands presented within science, technology, engineering, and mathematics (STEM) coursework can overwhelm all students and especially students with learning challenges. Although STEM content is often complex in itself (e.g., numerous multisyllabic words, lengthy expository texts, abstract concepts), some…

  18. Mathematization in introductory physics

    NASA Astrophysics Data System (ADS)

    Brahmia, Suzanne M.

    Mathematization is central to STEM disciplines as a cornerstone of the quantitative reasoning that characterizes these fields. Introductory physics is required for most STEM majors in part so that students develop expert-like mathematization. This dissertation describes coordinated research and curriculum development for strengthening mathematization in introductory physics; it blends scholarship in physics and mathematics education in the form of three papers. The first paper explores mathematization in the context of physics, and makes an original contribution to the measurement of physics students' struggle to mathematize. Instructors naturally assume students have a conceptual mastery of algebra before embarking on a college physics course because these students are enrolled in math courses beyond algebra. This paper provides evidence that refutes the validity of this assumption and categorizes some of the barriers students commonly encounter with quantification and representing ideas symbolically. The second paper develops a model of instruction that can help students progress from their starting points to their instructor's desired endpoints. Instructors recognize that the introductory physics course introduces new ideas at an astonishing rate. More than most physicists realize, however, the way that mathematics is used in the course is foreign to a large portion of class. This paper puts forth an instructional model that can move all students toward better quantitative and physical reasoning, despite the substantial variability of those students' initial states. The third paper describes the design and testing of curricular materials that foster mathematical creativity to prepare students to better understand physics reasoning. Few students enter introductory physics with experience generating equations in response to specific challenges involving unfamiliar quantities and units, yet this generative use of mathematics is typical of the thinking involved in doing physics. It contrasts with their more common experience with mathematics as the practice of specified procedures to improve efficiency. This paper describes new curricular materials based on invention instruction provide students with opportunities to generate mathematical relationships in physics, and the paper presents preliminary evidence of the effectiveness of this method with mathematically underprepared engineering students.

  19. Connecting Mathematics across the Curriculum. 1995 Yearbook.

    ERIC Educational Resources Information Center

    House, Peggy A., Ed.; Coxford, Arthur F., Ed.

    One of the four cornerstones of the National Council of Teachers of Mathematics (NCTM) "Curriculum and Evaluation Standards for School Mathematics" asserts that connecting mathematics to other subjects in the curriculum and to the everyday world is an important goal of school mathematics. This yearbook is designed to help classroom teachers,…

  20. Effective Practices for Evaluating STEM Out-of-School Time Programs

    ERIC Educational Resources Information Center

    Wilkerson, Stephanie B.; Haden, Carol M.

    2014-01-01

    Science, technology, engineering, and mathematics (STEM) programs in out-of-school time (OST) are designed to supplement school work, ignite student interest, and extend STEM learning. From interactive museum exhibits to summer-long science camps, opportunities for informal student engagement in STEM learning abound. The differences these programs…

  1. STEM: Good Jobs Now and for the Future. ESA Issue Brief #03-11

    ERIC Educational Resources Information Center

    Langdon, David; McKittrick, George; Beede, David; Khan, Beethika; Doms, Mark

    2011-01-01

    Science, technology, engineering and mathematics (STEM) workers drive the nation's innovation and competitiveness by generating new ideas, new companies and new industries. However, U.S. businesses frequently voice concerns over the supply and availability of STEM workers. Over the past 10 years, growth in STEM jobs was three times as fast as…

  2. Impact of Environmental Power Monitoring Activities on Middle School Student Perceptions of STEM

    ERIC Educational Resources Information Center

    Knezek, Gerald; Christensen, Rhonda; Tyler-Wood, Tandra; Periathiruvadi, Sita

    2013-01-01

    Middle school is a crucial stage in student development as students prepare for a fast changing future. The science, technology, engineering and mathematics (STEM) skills that students acquire in middle school lay the foundation for a successful career in STEM. Moreover, most STEM occupations require competencies in science, math and logical…

  3. Using Community Colleges to Build a STEM-Skilled Workforce. Issue Brief

    ERIC Educational Resources Information Center

    NGA Center for Best Practices, 2011

    2011-01-01

    Education and skills in science, technology, engineering, and mathematics (STEM) are important in a global economy increasingly focused on high-growth, technology-driven occupations. Yet, many states face a shortage of STEM-skilled students and workers. A number of states have built powerful and productive STEM education and skills strategies to…

  4. STEM Learning Is Everywhere: Summary of a Convocation on Building Learning Systems

    ERIC Educational Resources Information Center

    Olson, Steve; Labov, Jay

    2014-01-01

    Science, technology, engineering, and mathematics (STEM) permeate the modern world. The jobs people do, the foods they eat, the vehicles in which they travel, the information they receive, the medicines they take, and many other facets of modern life are constantly changing as STEM knowledge steadily accumulates. Yet STEM education in the United…

  5. Understanding STEM Education and Supporting Students through Universal Design for Learning

    ERIC Educational Resources Information Center

    Basham, James D.; Marino, Matthew T.

    2013-01-01

    Despite an increased national focus on science, technology, engineering, and mathematics (STEM) instruction, students with high incidence disabilities continue to struggle with STEM content at both the K-12 and postsecondary levels. As a result, very few students with disabilities pursue STEM careers. This article provides K-12 special education…

  6. Noise-Driven Stem Cell and Progenitor Population Martin Hoffmann1

    E-print Network

    Bernard, Samuel

    Noise-Driven Stem Cell and Progenitor Population Dynamics Martin Hoffmann1 *, Hannah H. Chang2 between maintenance of the stem cell state and terminal differentiation is influenced by the cellular present a novel mathematical concept in which stem cell and progenitor population dynamics are described

  7. A Campus-Wide Study of STEM Courses: New Perspectives on Teaching Practices and Perceptions

    ERIC Educational Resources Information Center

    Smith, Michelle K.; Vinson, Erin L.; Smith, Jeremy A.; Lewin, Justin D.; Stetzer, MacKenzie R.

    2014-01-01

    At the University of Maine, middle and high school science, technology, engineering, and mathematics (STEM) teachers observed 51 STEM courses across 13 different departments and collected information on the active-engagement nature of instruction. The results of these observations show that faculty members teaching STEM courses cannot simply be…

  8. Hierarchical Mentoring: A Transformative Strategy for Improving Diversity and Retention in Undergraduate STEM Disciplines

    ERIC Educational Resources Information Center

    Wilson, Zakiya S.; Holmes, Lakenya; deGravelles, Karin; Sylvain, Monica R.; Batiste, Lisa; Johnson, Misty; McGuire, Saundra Y.; Pang, Su Seng; Warner, Isiah M.

    2012-01-01

    In the United States, less than half of the students who enter into science, technology, engineering, and mathematics (STEM) undergraduate curricula as freshmen will actually graduate with a STEM degree. There is even greater disparity in the national STEM graduation rates of students from underrepresented groups with approximately three-fourths…

  9. Out-of-School Time Science Activities and Their Association with Career Interest in STEM

    Microsoft Academic Search

    Katherine P. Dabney; Robert H. Tai; John T. Almarode; Jaimie L. Miller-Friedmann; Gerhard Sonnert; Philip M. Sadler; Zahra Hazari

    2011-01-01

    Spurred by concerns about an inadequately sized science, technology, engineering, and mathematics (STEM) workforce, there has been a growing interest in out-of-school time (OST) science activities as a means to foster STEM career interest. This study examines the association between OST science activities and STEM career interest in university through a logistic regression model and the calculation of prototypical odds

  10. Out-of-School Time Science Activities and Their Association with Career Interest in STEM

    Microsoft Academic Search

    Katherine P. Dabney; Robert H. Tai; John T. Almarode; Jaimie L. Miller-Friedmann; Gerhard Sonnert; Philip M. Sadler; Zahra Hazari

    2012-01-01

    Spurred by concerns about an inadequately sized science, technology, engineering, and mathematics (STEM) workforce, there has been a growing interest in out-of-school time (OST) science activities as a means to foster STEM career interest. This study examines the association between OST science activities and STEM career interest in university through a logistic regression model and the calculation of prototypical odds

  11. B 2004 Wiley Periodicals, Inc. The Opportunity of Stem Cell Bioengineering

    E-print Network

    Zandstra, Peter W.

    , the basic biological properties of stem cells are the subject of intense research activityB 2004 Wiley Periodicals, Inc. EDITORIAL The Opportunity of Stem Cell Bioengineering Stem cells in the face of continual loss of terminally dif- ferentiated cells. It is therefore not surprising that stem

  12. Page 1 of 29 HUMAN STEM CELL RESEARCH OVERSIGHT PROGRAM

    E-print Network

    Loudon, Catherine

    on the interior. 3. Clinical Investigation: Any experiment that involves a test article and one or more humanPage 1 of 29 HUMAN STEM CELL RESEARCH OVERSIGHT PROGRAM POLICY AND STANDARD OPERATING PROCEDURES subjects that is subject to the Federal Food, Drug, and Cosmetic Act. 4. Human Stem Cell Research Oversight

  13. iSTEM: Tinkering with Buoyancy

    ERIC Educational Resources Information Center

    Lee, Mi Yeon

    2014-01-01

    In the technology-rich twenty-first century, students are required to actively construct their knowledge and collaboratively engage in problem solving by using such skills as adaptability, communication, self-management, and systematic thinking. In accordance with this necessity, science, technology, engineering, and mathematics (STEM) education…

  14. Incorporating Engineering Design Challenges into STEM Courses

    ERIC Educational Resources Information Center

    Householder, Daniel L., Ed.; Hailey, Christine E., Ed.

    2012-01-01

    Successful strategies for incorporating engineering design challenges into science, technology, engineering, and mathematics (STEM) courses in American high schools are presented in this paper. The developers have taken the position that engineering design experiences should be an important component of the high school education of all American…

  15. Recruiting and Hiring Women in STEM Fields

    Microsoft Academic Search

    Christy Glass; Krista Lynn Minnotte

    2010-01-01

    The number of women earning advanced degrees in science, technology, engineering, and mathematics (STEM) has increased, yet women remain underrepresented at all ranks of the academic hierarchy in these fields. To help explain this pattern, we explored mechanisms in the recruitment and hiring process at the level of the department that hinder or promote the hiring of women into tenure-track

  16. An Integrated STEM Research and Professional Development Project for Teachers

    Microsoft Academic Search

    Anant R. Kukreti; George A. Sorial; Mingming Lu; Heng Wei; Thaddeus W. Fowler; Suzanne W. Soled; Patricia D. McNerney

    This paper presents the structure, execution, and evaluation process implemented to provide a research experience to 7th to 12th grade science an d mathematics teachers and a professional development program in science, technology, engineering, and mathematics (STEM) education. Each year twelve teachers are selected to participate in the program. Each year four project topics are chosen to provide an o

  17. Community Colleges Giving Students a Framework for STEM Careers

    ERIC Educational Resources Information Center

    Musante, Susan

    2012-01-01

    Over the coming decade, America will need one million more science, technology, engineering, and mathematics (STEM) professionals than was originally projected. This is the conclusion of a February 2012 report, "Engage to Excel: Producing One Million Additional College Graduates with Degrees in Science, Technology, Engineering, and Mathematics".…

  18. Supportive Teaching and Learning Strategies in STEM Education

    ERIC Educational Resources Information Center

    Smith, Karl A.; Douglas, Tameka Clarke; Cox, Monica F.

    2009-01-01

    The 1996 Advisory Committee report to the National Science Foundation, "Shaping the Future: New Expectations for Undergraduate Education in Science, Mathematics, Engineering, and Technology," called for many changes in STEM (science, technology, engineering, and mathematics) education. The committee's overriding recommendation was that "all…

  19. Astronomy and Mathematics Education

    NASA Astrophysics Data System (ADS)

    Ros, Rosa M.

    There are many European countries where Astronomy does not appear as a specific course on the secondary school. In these cases Astronomy content can be introduced by means of other subjects. There are some astronomical topics within the subject of Physics but this talk concerns introducing Astronomy in Mathematics classes. Teaching Astronomy through Mathematics would result in more exposure than through Physics as Mathematics is more prevalent in the curriculum. Generally it is not easy to motivate students in Mathematics but they are motivated to find out more about the universe and Astronomy current events than appears in the media. This situation can be an excellent introduction to several mathematics topics. The teachers in secondary and high school can use this idea in order to present more attractive mathematics courses. In particular some different examples will be offered regarding * Angles and spherical coordinates considering star traces * Logarithms and visual magnitudes * Plane trigonometry related orbital movements * Spherical trigonometry in connection with ecliptic obliquity * Conic curves related to sundial at several latitudes Some students do not enjoy studying Mathematics but they can be attracted by practical situations using Applied Mathematics: Astronomy is always very attractive to teenagers.

  20. Date Subject Name Experimenter Subject #

    E-print Network

    Date Subject Name Experimenter Subject # PNa-o Aphasia Score Sheet - Session 1 PNa-o Aphasia BOARD 36. FEED 37. SKELETON 38. CANNON 39. DRUM 40. YELL #12;PNa-o Aphasia Score Sheet - Session 1 PNa-o Aphasia Session 1 Page2 Item # Target Notes P1. LION P2. HUG P3. CAR 1. SWEAT 2. SUBMARINE 3. FAUCET 4

  1. Developing Middle School Students' Interests in STEM via Summer Learning Experiences: See Blue STEM Camp

    ERIC Educational Resources Information Center

    Mohr-Schroeder, Margaret J.; Jackson, Christa; Miller, Maranda; Walcott, Bruce; Little, David L.; Speler, Lydia; Schooler, William; Schroeder, D. Craig

    2014-01-01

    It is a well-known fact that, in general, many students have a lack of interest and proficiency in mathematics and science. Therefore, it is imperative that we prepare and inspire all students, specifically students of underrepresented populations, to learn science, technology, engineering, and mathematics (STEM) content. Now in its fourth year,…

  2. Employment of an Informal Educational Mathematical Facility to Lower Math Anxiety and Improve Teacher and Student Attitudes Towards Understanding Mathematics

    ERIC Educational Resources Information Center

    Adams, Vicki

    2012-01-01

    Students do not pursue careers in science, technology, engineering, or mathematics (STEM) because of a lack of ability, but rather a lack of positive experiences with mathematics. Research has concluded that attitudes in math directly influence success in mathematics. As many as 75% of high school graduates in the United States suffer from mild to…

  3. Stem cell niches

    Microsoft Academic Search

    V. V. Terskikh; A. V. Vasiliev; E. A. Vorotelyak

    2007-01-01

    The nature of the stem cell niche and its interaction with stem cells is one of fundamental problems in the biology of stem\\u000a cells. Stem cell niches are formed during ontogeny. A niche can remain vacant and exist independently of stem cells; however,\\u000a stem cell self-renewal cannot be maintained for long periods outside of the niche except for particular conditions,

  4. Hierarchical Mentoring: A Transformative Strategy for Improving Diversity and Retention in Undergraduate STEM Disciplines

    Microsoft Academic Search

    Zakiya S. Wilson; Lakenya Holmes; Karin Degravelles; Monica R. Sylvain; Lisa Batiste; Misty Johnson; Saundra Y. McGuire; Su Seng Pang; Isiah M. Warner

    2011-01-01

    In the United States, less than half of the students who enter into science, technology, engineering, and mathematics (STEM)\\u000a undergraduate curricula as freshmen will actually graduate with a STEM degree. There is even greater disparity in the national\\u000a STEM graduation rates of students from underrepresented groups with approximately three-fourths of minority students leaving\\u000a STEM disciplines at the undergraduate level. A

  5. Mathematics across the curriculum

    Microsoft Academic Search

    Vivienne Mulholland

    1992-01-01

    Mathematics has traditionally been taught through a subject based approach. The advent of the National Curriculum has brought about a need for change to a topic based cross?curricular strategy, to deal with mathematics in real?life problems.One way of approaching this with young children is to introduce an imaginary world in which they are asked to help solve the open ended

  6. Constructive Mathematics.

    ERIC Educational Resources Information Center

    Calder, Allan

    1979-01-01

    Discusses the question of whether mathematics is discovered or invented. An approach known as constructive mathematics and based on the belief that mathematics can have real meaning if its concepts can be constructed by the human mind is presented. (HM)

  7. COMENIUS UNIVERSITY Faculty of Mathematics, Physics and Informatics

    E-print Network

    Veres, Peter

    COMENIUS UNIVERSITY Faculty of Mathematics, Physics and Informatics Subject Information Sheet Code of the subject: Introduction, properties of matter, energy transport in stars, static stellar structure, nuclear

  8. On Explaining Change in School Subjects.

    ERIC Educational Resources Information Center

    Cooper, Barry

    1983-01-01

    Drawing on a recent empirical study of curriculum change in English secondary school mathematics and on the work of Kuhn, Bucher and Strauss, Archer, and Bhaskar, a tentative model for analyzing how and why changes occur in the legitimacy of particular definitions of secondary school mathematics and science subjects is developed. (Author/IS)

  9. Thinkfinity: STEM

    NSDL National Science Digital Library

    The Verizon Foundation's Thinkfinity website has a very large section of STEM resources for students and teachers. Near the bottom of the homepage visitors will find "Lesson Plans", "Podcasts", and "Resources and Tools". In addition, there is a community forum where members discuss their thoughts on some of the resources from the website they have found useful, or how they have modified them to suit their classroom situation. Visitors to the site can easily register for free to join the community. The "At Home and Afterschool" tab near the top of the page has a "games and tools" section that includes activities, videos, and collections, as well as other types of resources. The literacy section of the "Afterschool" area has many resources for families and games for early literacy. Visitors can also use the "Professional Development" tab to find information on how to utilize the many Thinkfinity resources.

  10. Identifying and Nurturing Future Innovators in Science, Technology, Engineering, and Mathematics: A Review of Findings from the Study of Mathematically Precocious Youth

    ERIC Educational Resources Information Center

    Benbow, Camilla Persson

    2012-01-01

    Calls to strengthen education in science, technology, engineering, and mathematics (STEM) are underscored by employment trends and the importance of STEM innovation for the economy. The Study of Mathematically Precocious Youth (SMPY) has been tracking over 5,000 talented individuals longitudinally for 40 years, throwing light on critical questions…

  11. Transforming Teacher Preparation to Ensure Long-Term Improvement in STEM Teaching

    ERIC Educational Resources Information Center

    Hiebert, James

    2013-01-01

    An alternative mathematics preparation program for K-8 teachers is described as an existence proof that steadily increasing effectiveness of STEM (science, technology, engineering, and mathematics) preparation is possible. The program is based on treating every lesson in each of five mathematics content and methods courses as objects of study.…

  12. advances in mathematics education ISBN 978-1-848-00000-0

    E-print Network

    Bardsley, John

    1 3 advances in mathematics education ISBN 978-1-848-00000-0 Theories of mathematics education monograph is based on the two highly acclaimed ZDM special issues on theories of mathematics education (issue 6/2005 and issue 1/2006), which stemmed from the revival of the Theories of Mathematics Education

  13. Epidermal Stem Cells

    Microsoft Academic Search

    V. V. Terskikh; A. V. Vasil'ev

    2001-01-01

    Epidermis contains a compartment of stem cells but currently there is no common criterion to recognize individual stem cells with any confidence. Epidermis appears to contain stem cells of different levels of maturity and it is very likely that the main repository of epidermal stem cells is located in the hair follicle from which cells can emigrate into epidermis and

  14. Rotatable stem and lock

    DOEpatents

    Deveney, Joseph E. (Albuquerque, NM); Sanderson, Stephen N. (Albuquerque, NM)

    1984-01-01

    A valve stem and lock include a housing surrounding a valve stem, a solenoid affixed to an interior wall of the housing, an armature affixed to the valve stem and a locking device for coupling the armature to the housing body. When the solenoid is energized, the solenoid moves away from the housing body, permitting rotation of the valve stem.

  15. Rotatable stem and lock

    DOEpatents

    Deveney, J.E.; Sanderson, S.N.

    1981-10-27

    A valve stem and lock is disclosed which includes a housing surrounding a valve stem, a solenoid affixed to an interior wall of the housing, an armature affixed to the valve stem and a locking device for coupling the armature to the housing body. When the solenoid is energized, the solenoid moves away from the housing body, permitting rotation of the valve stem.

  16. Stem cells in urology

    Microsoft Academic Search

    Tamer Aboushwareb; Anthony Atala

    2008-01-01

    The shortage of donors for organ transplantation has stimulated research on stem cells as a potential resource for cell-based therapy in all human tissues. Stem cells have been used for regenerative medicine applications in many organ systems, including the genitourinary system. The potential applications for stem cell therapy have, however, been restricted by the ethical issues associated with embryonic stem

  17. Toward ‘SMART’ stem cells

    Microsoft Academic Search

    T Cheng

    2008-01-01

    Stem cell research is at the heart of regenerative medicine, which holds great promise for the treatment of many devastating disorders. However, in addition to hurdles posed by well-publicized ethical issues, this emerging field presents many biological challenges. What is a stem cell? How are embryonic stem cells different from adult stem cells? What are the physiological bases for therapeutically

  18. Stem Cell 101 What is a stem cell?

    E-print Network

    Minnesota, University of

    Stem Cell 101 What is a stem cell? A stem cell is a parent cell in the body that has two specific into all types of tissue in the body ­ this is called differentiation. Where are stem cells found? There are two types of stem cells: embryonic stem cells, found in embryos, and adult stem cells, which can

  19. Assessing the Impact of a Research-Based STEM Program on STEM Majors' Attitudes and Beliefs

    ERIC Educational Resources Information Center

    Huziak-Clark, Tracy; Sondergeld, Toni; Staaden, Moira; Knaggs, Christine; Bullerjahn, Anne

    2015-01-01

    The Science, Engineering, and Technology Gateway of Ohio (SETGO) program has a three-pronged approach to meeting the needs at different levels of students in the science, technology, engineering, and mathematics (STEM) pipeline. The SETGO program was an extensive collaboration between a two-year community college and a nearby four-year…

  20. Adipose Tissue-Derived Stem Cells From Obese Subjects Contribute to Inflammation and Reduced Insulin Response in Adipocytes Through Differential Regulation of the Th1/Th17 Balance and Monocyte Activation.

    PubMed

    Eljaafari, Assia; Robert, Maud; Chehimi, Marwa; Chanon, Stephanie; Durand, Christine; Vial, Guillaume; Bendridi, Nadia; Madec, Anne-Marie; Disse, Emmanuel; Laville, Martine; Rieusset, Jennifer; Lefai, Etienne; Vidal, Hubert; Pirola, Luciano

    2015-07-01

    Obesity, through low-grade inflammation, can drive insulin resistance and type 2 diabetes. While infiltration of adipose tissue (AT) with mononuclear cells (MNCs) is well established in obesity, the functional consequences of these interactions are less understood. Herein, we cocultured human adipose-derived stem cells (ASCs) from obese individuals with MNCs and analyzed their reciprocal behavior. Presence of ASCs 1) enhanced interleukin (IL)-17A secretion by Th17 cells, 2) inhibited ?-interferon and tumor necrosis factor ? secretion by Th1 cells, and 3) increased monocyte-mediated IL-1? secretion. IL-17A secretion also occurred in stromal vascular fractions issued from obese but not lean individuals. Th17 polarization mostly depended on physical contacts between ASCs and MNCs-with a contribution of intracellular adhesion molecule-1-and occurred through activation of the inflammasome and phosphatidylinositol 3-kinase pathways. ASCs favored STAT3 over STAT5 transcription factor binding on STAT binding sites within the IL-17A/F gene locus. Finally, conditioned media from activated ASC-MNC cocultures inhibited adipocyte differentiation mRNA markers and impaired insulin-mediated Akt phosphorylation and lipolysis inhibition. In conclusion, we report that obese- but not lean-derived ASCs induce Th17 promotion and monocyte activation. This proinflammatory environment, in turn, inhibits adipogenesis and adipocyte insulin response. The demonstration of an ASC-Th17-monocyte cell axis reveals a novel proinflammatory process taking place in AT during obesity and defines novel putative therapeutic targets. PMID:25765019

  1. Mathematics, Anyone?

    ERIC Educational Resources Information Center

    Reys, Robert; Reys, Rustin

    2011-01-01

    In their dual roles as mathematics teachers and tennis coaches, the authors have worked with tennis players who have never thought about how a knowledge of mathematics might help them become "better" tennis players. They have also worked with many mathematics students who have never considered how much mathematics is associated with tennis. This…

  2. Postgraduate Mathematical

    E-print Network

    Day, Adam R.

    - 1 - Postgraduate Study in Mathematical Logic School of Mathematics, Statistics and Operations at Victoria University of Wellington, New Zealand, is home to one of the leading Mathematical Logic research groups in the world. Recent graduates in mathematical logic have won national and international prizes

  3. Microscale technologies for regulating human stem cell differentiation.

    PubMed

    Cimetta, Elisa; Vunjak-Novakovic, Gordana

    2014-09-01

    During development and regeneration, tissues emerge from coordinated sequences of stem cell renewal, specialization, and assembly that are orchestrated by cascades of regulatory factors. This complex in vivo milieu, while necessary to fully recapitulate biology and to properly engineer progenitor cells, is difficult to replicate in vitro. We are just starting to fully realize the importance of the entire context of cell microenvironment-the other cells, three-dimensional matrix, molecular and physical signals. Bioengineered environments that combine tissue-specific transport and signaling are critical to study cellular responses at biologically relevant scales and in settings predictive of human condition. We therefore developed microbioreactors that couple the application of fast dynamic changes in environmental signals with versatile, high-throughput operation and imaging capability. Our base device is a microfluidic platform with an array of microwells containing cells or tissue constructs that are exposed to stable concentration gradients. Mathematical modeling of flow and mass transport can predict the shape of these gradients and the kinetic changes in local concentrations. A single platform, the size of a microscope slide, contains up to 120 biological samples. As an example of application, we describe studies of cell fate specification and mesodermal lineage commitment in human embryonic stem cells and induced pluripotent stem cells. The embryoid bodies formed from these cells were subjected to single and multiple concentration gradients of Wnt3a, Activin A, bone morphogenic protein 4 (BMP4), and their inhibitors, and the gene expression profiles were correlated to the concentration gradients of morphogens to identify the exact conditions for mesodermal differentiation. PMID:24737735

  4. Microscale technologies for regulating human stem cell differentiation

    PubMed Central

    Cimetta, Elisa; Vunjak-Novakovic, Gordana

    2015-01-01

    During development and regeneration, tissues emerge from coordinated sequences of stem cell renewal, specialization, and assembly that are orchestrated by cascades of regulatory factors. This complex in vivo milieu, while necessary to fully recapitulate biology and to properly engineer progenitor cells, is difficult to replicate in vitro. We are just starting to fully realize the importance of the entire context of cell microenvironment—the other cells, three-dimensional matrix, molecular and physical signals. Bioengineered environments that combine tissue-specific transport and signaling are critical to study cellular responses at biologically relevant scales and in settings predictive of human condition. We therefore developed microbioreactors that couple the application of fast dynamic changes in environmental signals with versatile, high-throughput operation and imaging capability. Our base device is a microfluidic platform with an array of microwells containing cells or tissue constructs that are exposed to stable concentration gradients. Mathematical modeling of flow and mass transport can predict the shape of these gradients and the kinetic changes in local concentrations. A single platform, the size of a microscope slide, contains up to 120 biological samples. As an example of application, we describe studies of cell fate specification and mesodermal lineage commitment in human embryonic stem cells and induced pluripotent stem cells. The embryoid bodies formed from these cells were subjected to single and multiple concentration gradients of Wnt3a, Activin A, bone morphogenic protein 4 (BMP4), and their inhibitors, and the gene expression profiles were correlated to the concentration gradients of morphogens to identify the exact conditions for mesodermal differentiation. PMID:24737735

  5. Where Is the "E" in STEM for Young Children? Engineering Design Education in an Elementary Teacher Preparation Program

    ERIC Educational Resources Information Center

    DiFrancesca, Daniell; Lee, Carrie; McIntyre, Ellen

    2014-01-01

    Science, Technology, Engineering, and Mathematics (STEM) education initiatives in the United States have surged as the demand for high-quality STEM education has escalated (Nadelson, Callahan, Pyke, Hay, & Schrader, 2009; Parry, 2011). The goal of this article is to present a description of how one STEM-focused elementary teacher preparation…

  6. Pathways in STEM: Factors affecting the retention and attrition of talented men and women from the STEM pipeline

    NASA Astrophysics Data System (ADS)

    Heilbronner, Nancy N.

    Many men and women who are talented in science, technology, engineering, and/or mathematics (STEM) choose not to pursue undergraduate majors or careers in these fields. To develop talents in STEM, educators must understand the factors that contribute to an individual's retention in STEM domains, as well as the factors that act as barriers to success, such as the role that gender plays in the underrepresentation of women in certain STEM fields (e.g., computer science and engineering) and changes in recent decades in the process of selecting STEM majors and careers. The purpose of this study was to explore the influences that guide decisions related to the selection of majors and occupations during high school, post-secondary education, and early careers. Survey methodology was used to explore the perceptions of 360 Science Talent Search (STS) semifinalists and finalists during the years 1987-1989 and 1997-1999, and quantitative procedures were used to analyze the data. A majority (74.2%) of STS participants majored in a STEM field in college, and most (68.6%) currently work in a STEM field. A greater percentage of men selected computer science, engineering, physics, and mathematics majors, and a greater percentage of women selected biological science and chemistry. Belief in one's ability to achieve in STEM was a predictor of STEM majors in college and STEM concentrations in graduate school, but differences were found between men's and women's self-efficacy in STEM during high school and in college, as women had lower self-efficacy. Sex was a predictor of STEM majors in college, but perceived quality of academic courses was not. STEM majors also reported more satisfaction with their STEM courses in high school and college than non-STEM majors. In a departure from the results of previous research, the reasons that men and women selected occupations were similar, as were the reasons they chose to leave or not to enter STEM. The most frequently cited reason for attrition was interest in another (non-STEM) field. Participants placed little importance on other reasons for leaving STEM that were identified in previous research, such as competition, social isolation, or financial considerations.

  7. Stem cell self-renewal in intestinal crypt

    SciTech Connect

    Simons, Benjamin D., E-mail: bds10@cam.ac.uk [Cavendish Laboratory, Department of Physics, J.J. Thomson Avenue, University of Cambridge, Cambridge CB3 0HE (United Kingdom); The Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN (United Kingdom); Clevers, Hans, E-mail: h.clevers@hubrecht.eu [Hubrecht Institute, KNAW and University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht (Netherlands)] [Hubrecht Institute, KNAW and University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht (Netherlands)

    2011-11-15

    As a rapidly cycling tissue capable of fast repair and regeneration, the intestinal epithelium has emerged as a favored model system to explore the principles of adult stem cell biology. However, until recently, the identity and characteristics of the stem cell population in both the small intestine and colon has remained the subject of debate. Recent studies based on targeted lineage tracing strategies, combined with the development of an organotypic culture system, have identified the crypt base columnar cell as the intestinal stem cell, and have unveiled the strategy by which the balance between proliferation and differentiation is maintained. These results show that intestinal stem cells operate in a dynamic environment in which frequent and stochastic stem cell loss is compensated by the proliferation of neighboring stem cells. We review the basis of these experimental findings and the insights they offer into the mechanisms of homeostatic stem cell regulation.

  8. Neural Stem Cell-Based Therapy for Ischemic Stroke

    Microsoft Academic Search

    Zaal Kokaia; Vladimer Darsalia

    Stem cell-based approaches for the treatment of stroke have been the subject of intensive research over the past decade. Based\\u000a on accumulated experimental evidence, stem cell-based therapy is a very promising prospect for the development of a novel\\u000a treatment to restore stroke-damaged brain and impaired neurological function. Studies performed on experimental animal models\\u000a of stroke employed a variety of stem

  9. Symbolising the Real of Mathematics Education

    ERIC Educational Resources Information Center

    Pais, Alexandre

    2015-01-01

    This text, occasioned by a critical reading of Tony Brown's new book "Mathematics Education and Subjectivity," aims at contributing to the building of a sociopolitical approach to mathematics education based on Lacanian psychoanalysis and Slavoj Žižek's philosophy. Brown has been bringing into the field of mathematics education the work…

  10. Reconceptualizing Knowledge at the Mathematical Horizon

    ERIC Educational Resources Information Center

    Zazkis, Rina; Mamolo, Ami

    2011-01-01

    This article extends the notion of "knowledge at the mathematical horizon" or "horizon knowledge" introduced by Ball and colleagues as a part of teachers' subject matter knowledge. Our focus is on teachers' mathematical knowledge beyond the school curriculum, that is, on mathematics learnt during undergraduate college or university studies. We…

  11. Expanding your horizons in science and mathematics

    NASA Technical Reports Server (NTRS)

    Palmer, Cynthia E. A.

    1995-01-01

    The purpose of the 'Expanding Your Horizons in Science and Mathematics' program is to interest young women in grades six through twelve in a variety of careers where mathematics and science are important. Progress in encouraging young women to take courses in mathematics, science, and technological subjects is discussed. Also included are adult, student, and organizational information packets used for 'Expanding Your Horizons' conferences.

  12. Cross-National Differences in Participating in Tertiary Science, Technology, Engineering, and Mathematics Education1

    Microsoft Academic Search

    Annemarie van Langen; Hetty Dekkers

    Summary In many western countries attention is currently being given to the participation of students in tertiary Science, Technology, Engineering and Mathematics (STEM) education. This is a result of internationally competing economic ambitions, coupled with acute shortages on the STEM labour market, a declining interest among students for STEM education and a long-lasting under-representation of women. However, despite similarities concerning

  13. Cross?national differences in participating in tertiary science, technology, engineering and mathematics education

    Microsoft Academic Search

    Annemarie van Langen; Hetty Dekkers

    2005-01-01

    In many western countries attention is currently being given to the participation of students in tertiary Science, Technology, Engineering and Mathematics (STEM) education. This is a result of internationally competing economic ambitions, coupled with acute shortages on the STEM labour market, a declining interest among students for STEM education and a long?lasting under?representation of women. However, despite similarities concerning policy

  14. SEFI Conference, 16-20 September 2013, Leuven, Belgium The mathematics in your ears

    E-print Network

    : Mathematics and Engineering Education, Attract Youngsters to Engineering Education, New Learning Concepts for Engineering Education Keywords: STEM, course material, Fourier analysis, Cochlear Implants INTRODUCTION existing education formats offer STEM-oriented study profiles that prepare for a college education in STEM

  15. Mathematical Autobiography Yanran Chen

    E-print Network

    Mohlenkamp, Martin J.

    several years learning Chinese painting and pencil sketch and pretty good at both. It seems a great combination of my strength in art and science subjects, but I re- ally dislike lifeless graph by ruler of mathematics is that when you get started, you can never figure out how far and how deep you need to go so

  16. Consumer Mathematics. Teaching Units.

    ERIC Educational Resources Information Center

    North Carolina State Dept. of Public Instruction, Raleigh.

    GRADES OR AGES: Secondary school. SUBJECT MATTER: Consumer mathematics including--money management, transportation, probability, swindles and gyps, insurance, housing, taxes, consumer credit, banks, savings, and investments. ORGANIZATION AND PHYSICAL APPEARANCE: The guide is divided into ten parallel units, one for each of the above areas, which…

  17. Students Who Demonstrate Strong Talent and Interest in STEM Are Initially Attracted to STEM through Extracurricular Experiences

    PubMed Central

    Frankenfeld, Cara L.; Bases, Jessica; Espina, Virginia; Liotta, Lance A.

    2014-01-01

    What early experiences attract students to pursue an education and career in science, technology, engineering, and mathematics (STEM)? Does hands-on research influence them to persevere and complete a major course of academic study in STEM? We evaluated survey responses from 149 high school and undergraduate students who gained hands-on research experience in the 2007–2013 Aspiring Scientists Summer Internship Programs (ASSIP) at George Mason University. Participants demonstrated their strong interest in STEM by volunteering to participate in ASSIP and completing 300 h of summer research. The survey queried extracurricular experiences, classroom factors, and hands-on projects that first cultivated students’ interest in the STEM fields, and separately evaluated experiences that sustained their interest in pursuing a STEM degree. The majority of students (65.5%, p < 0.0001) reported extracurricular encounters, such as the influence of a relative or family member and childhood experiences, as the most significant factors that initially ignited their interest in STEM, while hands-on lab work was stated as sustaining their interest in STEM (92.6%). Based on these findings collected from a cohort of students who demonstrated a strong talent and interest in STEM, community-based programs that create awareness about STEM for both children and their family members may be key components for igniting long-term academic interest in STEM. PMID:25452491

  18. Supply and Demand of STEM Workers: STEM Jobs Are Growing, but Are Enough Massachusetts Students Qualified? Education Research Brief. Issue 2

    ERIC Educational Resources Information Center

    Conaway, Carrie

    2007-01-01

    Jobs in science, technology, engineering, and mathematics (STEM) are the backbone of the Massachusetts economy. They comprise a substantial share of employment: about 13 percent of the state's jobs and one-third of its gross state product are related to STEM. And they also generate jobs in other fields, such as business and professional services,…

  19. A quantitative analysis of factors that influence and predict students' intention to major in and complete an undergraduate program in STEM or non-STEM

    Microsoft Academic Search

    Xuemei Yang

    2005-01-01

    The goal of this study was to explore and understand the factors that influence students' intention to major in and complete an undergraduate program in a science, technology, engineering, or mathematics (STEM) discipline, in a non-STEM field, and how students' gender directly and indirectly affects their success in college. A quantitative study of three thousand four (3004) ACT-tested students who

  20. Stem cell transplantation for treating Parkinson's disease

    PubMed Central

    Li, Runhui

    2012-01-01

    OBJECTIVE: To identify global research trends of stem cell transplantation for treating Parkinson's disease using a bibliometric analysis of the Web of Science. DATA RETRIEVAL: We performed a bibliometric analysis of data retrievals for stem cell transplantation for treating Parkinson's disease from 2002 to 2011 using the Web of Science. SELECTION CRITERIA: Inclusion criteria: (a) peer-reviewed articles on stem cell transplantation for treating Parkinson's disease which were published and indexed in the Web of Science; (b) type of articles: original research articles, reviews, meeting abstracts, proceedings papers, book chapters, editorial material and news items; (c) year of publication: 2002–2011. Exclusion criteria: (a) articles that required manual searching or telephone access; (b) we excluded documents that were not published in the public domain; (c) we excluded a number of corrected papers from the total number of articles. MAIN OUTCOME MEASURES: (1) Type of literature; (2) annual publication output; (3) distribution according to journals; (4) distribution according to subject areas; (5) distribution according to country; (6) distribution according to institution; (7) comparison of countries that published the most papers on stem cell transplantation from different cell sources for treating Parkinson's disease; (8) comparison of institutions that published the most papers on stem cell transplantation from different cell sources for treating Parkinson's disease in the Web of Science from 2002 to 2011; (9) comparison of studies on stem cell transplantation from different cell sources for treating Parkinson's disease RESULTS: In total, 1 062 studies on stem cell transplantation for treating Parkinson's disease appeared in the Web of Science from 2002 to 2011, almost one third of which were from American authors and institutes. The number of studies on stem cell transplantation for treating Parkinson's disease had gradually increased over the past 10 years. Papers on stem cell transplantation for treating Parkinson's disease appeared in journals such as Stem Cells and Experimental Neurology. Although the United States published more articles addressing neural stem cell and embryonic stem cell transplantation for treating Parkinson's disease, China ranked first for articles published on bone marrow mesenchymal stem cell transplantation for treating Parkinson's disease. CONCLUSION: From our analysis of the literature and research trends, we found that stem cell transplantation for treating Parkinson's disease may offer further benefits in regenerative medicine. PMID:25709626

  1. OPT STEM EXTENSION APPLICATION What is the OPT STEM Extension?

    E-print Network

    OPT STEM EXTENSION APPLICATION What is the OPT STEM Extension? The OPT STEM Extension is a 17-month based on a bachelor's, master's, or Ph.D in certain STEM (Science, Technology, Engineering, Math) fields. Who is Eligible for the OPT STEM Extension? F-1 students who: 1). hold a STEM degree (see pg. 2

  2. Adult neural stem cells in the mammalian central nervous system

    Microsoft Academic Search

    Dengke K Ma; Michael A Bonaguidi; Guo-li Ming; Hongjun Song

    2009-01-01

    Neural stem cells (NSCs) are present not only during the embryonic development but also in the adult brain of all mammalian species, including humans. Stem cell niche architecture in vivo enables adult NSCs to continuously generate functional neurons in specific brain regions throughout life. The adult neurogenesis process is subject to dynamic regulation by various physiological, pathological and pharmacological stimuli.

  3. Cancer Stem Cells in Brain Tumor Biology

    PubMed Central

    Rich, Jeremy N.; Eyler, Christine E.

    2009-01-01

    Tumors are aberrant organ systems containing a complex interplay between the neoplastic compartment and recruited vascular, inflammatory, and stromal elements. Further, most cancers display a hierarchy of differentiation states within the tumor cell population. Molecular signals that drive tumor formation and maintenance commonly overlap with those involved in normal development and wound responses – two processes in which normal stem cells function. It is therefore not surprising that cancers invoke stem cell programs that promote tumor malignancy. Stem cell-like cancer cells (or cancer stem cells) need not be derived from normal stem cells but may be subjected to evolutionary pressures that select for the capacity to self renew extensively or differentiate depending on conditions. Current cancer model systems may not fully recapitulate the cellular complexity of cancers, perhaps partially explaining the lack of power of these models in predicting clinical outcomes. New methods are enabling researchers to identify and characterize cancer stem cells. Our laboratory focuses on the roles of brain tumor stem cells in clinically relevant tumor biology, including therapeutic resistance, angiogenesis, and invasion/metastasis. We hope that these studies will translate into improved diagnostic, prognostic, and therapeutic approaches for these lethal cancers. PMID:19329578

  4. A Cryptological Way of Teaching Mathematics

    ERIC Educational Resources Information Center

    Caballero-Gil, Pino; Bruno-Castaneda, Carlos

    2007-01-01

    This work addresses the subject of mathematics education at secondary schools from a current and stimulating point of view intimately related to computational science. Cryptology is a captivating way of introducing into the classroom different mathematical subjects such as functions, matrices, modular arithmetic, combinatorics, equations,…

  5. UW Summer STEM Undergraduate

    E-print Network

    Kaminsky, Werner

    UW Summer STEM Undergraduate Research Poster SessionWednesday, August 21st, 2013 9:00 am--12 noon to conduct research in STEM fields. For more information, contact the Undergraduate Research Program at: urp

  6. Choosing a STEM Career

    NSDL National Science Digital Library

    2009-11-10

    Students will view video clips about graduate and middle school students with interests in STEM careers and compare technologies from yesterday with today. They will explore careers on-line before writing about their futures as STEM professionals.

  7. Stem Cell Information: Glossary

    MedlinePLUS

    ... medicine Reproductive cloning Signals Somatic cell Somatic cell nuclear transfer (SCNT) Somatic (adult) stem cell Stem cells ... refer to an animal produced by somatic cell nuclear transfer (SCNT) or parthenogenesis . Cloning —See Clone . Cord ...

  8. Students attitude towards calculus subject: Bumiputera case-study

    NASA Astrophysics Data System (ADS)

    Awang, Noorehan; Ilias, Mohd Rijal; Che Hussain, Wan Siti Esah; Mokhtar, Siti Fairus

    2013-04-01

    Mathematics has always become the most dislike subject among other subjects in school. Study showed that attitudes of students in science subjects such as mathematics were closely related to how they solve problems, accessing ideas and making a right decision. According to another study on mathematics achievement of eighth grade students in Malaysia, mathematics grades among bumiputera students was lower when compared to other races such as Chinese and Indians. The poor performance was due to their attitude and pre-conceived ideas towards the subject. Therefore, this study was designed todetermine the criteria and subcriteria that were considered important in measuring students' attitude toward mathematics among the bumiputeras. Factor analysis was carried out to identify the groups among criterion. Instrument used to measure mathematics attitude was Test of Mathematics Related Attitude (TOMRA) which measured student attitudes in four criteria: normality of mathematics, attitudes towards mathematics inquiry, adoption of mathematics attitude and enjoyment of mathematics lessons. The target population of this study was all computer science and quantitative science students who enrolled Calculus subject in UiTM Kedah. Findings shows that there are two criteria that influenced students attitude toward mathematics namely normality of mathematics with eleven subcriteria and enjoyment of mathematics with eight subcriteria. From the analysis it shows that the total percentage of variation explained is 35.071% with 0.837 Cronbach's alpha reliability test. The findings will help the lecturers, parents and society to consider what action should be taken to install interest and positive attitude of bumiputera students towards mathematics and thus improve their achievement.

  9. Mathematics disorder

    MedlinePLUS

    Mathematics disorder is a condition in which a child's math ability is far below normal for their age, ... Children who have mathematics disorder have trouble with simple ... disorder may appear with: Developmental coordination ...

  10. Umbilical Cord Stem Cells

    Microsoft Academic Search

    Kathy E. Mitchell

    The two most basic properties of stem cells are the capacities to self-renew and to differentiate into multiple cell or tissue\\u000a types (1–3). Generally, stem cells are categorized as one of three types: embryonic stem cells (ES), embryonic germ cells (EG), or adult\\u000a stem cells. ES cells are derived from the inner cell mass of the blastula (Fig. 1). They

  11. Teacher Professional Development: Assessment on Teacher's Perceptions of NASA's Online STEM Professional Development

    E-print Network

    Keil, Matthew James

    2014-04-09

    and National Aeronautics and Space Administration (NASA) provided teachers with an online Science, Technology, Engineering and Mathematics (STEM) PD course called MicroGX. A thorough analyses of data from two surveys, observations, and documents were used...

  12. Teacher Professional Development: Assessment on Teacher's Perceptions of NASA's Online STEM Professional Development 

    E-print Network

    Keil, Matthew James

    2014-04-09

    and National Aeronautics and Space Administration (NASA) provided teachers with an online Science, Technology, Engineering and Mathematics (STEM) PD course called MicroGX. A thorough analyses of data from two surveys, observations, and documents were used...

  13. STEM Bridge Scholarship Program

    E-print Network

    Buehrer, R. Michael

    2015-2016 STEM Bridge Scholarship Program Virginia Space Grant Consortium (VSGC) provides renewable STEM Bridge Scholarships of $1,000 to sophomore students from any federally recognized minority group enrolled full-time in a program of study in science, technology, engineering, or math (STEM) at one

  14. Understanding Embryonic Stem Cells

    NSDL National Science Digital Library

    Douglas A. Melton, Ph.D. (Howard Hughes Medical Institute; )

    2008-04-10

    This indexed webcast video along with synchronized lecture slides is from Howard Hughes Medical Institute's 2006 Holiday LecturesPotent Biology: Stem Cells, Cloning, and Regeneration. Douglas A. Melton presents an introduction to stem cells, as well as answers to questions about the role of stem cells in the human body. This video requires RealPlayer 10.

  15. Mathematics Engineering

    E-print Network

    California at Santa Barbara, University of

    , the words are in quotations, there are no names included, the picture, if chosen to show a person, is of you it through STEM by..." Send us a picture of yourself holding up something about your experience with STEM and only you. *Note: You do not need to show your face. You can just send in a picture of a quote if you

  16. A subject-specific postural instability parameter.

    PubMed

    Argatov, I

    2013-01-01

    A mathematical modeling approach is applied for deriving subject-specific stabilometric parameters associated with center-of-pressure sway measurements for assessing balancing ability of subjects in quiet standing on a force platform. Based on the inverted pendulum model, a new combined stabilometric parameter including anthropometric characteristics (body height and mass) is obtained which represents a measure of postural instability. A physical meaning of the subject-specific parameter is related to the effective stiffness of the inverted pendulum model. PMID:22795475

  17. Stem Cell Quick Guide: Stem Cell Basics What is a Stem Cell?

    E-print Network

    Schladow, S. Geoffrey

    Stem Cell Quick Guide: Stem Cell Basics What is a Stem Cell? Stem cells are the starting point from to line blood vessels. All of these highly specialized cells have to grow from unspecialized stem cells. Stem cells produce new cells by dividing. In the right conditions, these new cells can then continue

  18. The Education of Mathematically Gifted Pupils in Czechoslovakia.

    ERIC Educational Resources Information Center

    Odvarko, Oldrich; Trojak, Jan

    1989-01-01

    An account of the educational system for mathematically gifted students in Czechoslovakia is presented. Three components are described: compulsorily optional and facultative mathematical school subjects taught in basic and secondary schools, special mathematical classes of the basic schools and the gymnasiums, and such mathematical competitions as…

  19. Pedagogical Methods to Promote STEM Literacy with Case-Study

    NSDL National Science Digital Library

    Dharam Persaud-Sharma

    "Pedagogical Methods to Promote STEM Literacy with Case-Study" is a manuscript pertaining to the under-training of youths in America with regards to the STEM coalition of subjects. This manuscript proposes a 5-step culturally relevant teaching paradigm to improve education in these subjects, as well as retain and attract students to the fields. A case-study presenting the implementation of this paradigm is also included to show its effectiveness when implemented correctly.

  20. Radiocarbon in Tree STEM CO2 Efflux

    NASA Astrophysics Data System (ADS)

    Muhr, J.; Czimczik, C. I.; Angert, A.; Trumbore, S.

    2011-12-01

    Carbon dioxide efflux from tree stems can be a significant component of the stand-level carbon balance. Recent studies have demonstrated that tree stem CO2 efflux may reflect more than just in-situ respiration but also transport from other locations and it has been suggested that it may also include C originally respired in roots or even uptake of soil CO2. We report measurements of the radiocarbon signature of carbon emitted from a range of mature tree stems in tropical and temperate forest ecosystems. Comparison of the radiocarbon signature of respired CO2 with the observed rate of decline in atmsopheric 14C-CO2 provides a measure of the time elapsed between C fixation by the plant and its return to the atmosphere as stem CO2 efflux. In all investigated trees, we observed that stem CO2 efflux had higher radiocarbon signatures than the contemporary atmospheric 14C-CO2, and therefore was derived from C fixed one to several years earlier. In tropical forest trees, we found that the 14C signature of CO2 within the stem (~4-5 cm depth) had even higher radiocarbon signatures than the stem CO2 efflux. In one of the investigated tree species, the in-stem CO2 was derived from C sources fixed on average ~20 years previously. These results confirm observations of root-respired CO2 that also have shown contributions of C substrates older than recent photosynthetic products, and the presence of extracable C reserves in wood that reflect the presence of older C sources. Our results imply that stem CO2 efflux is not only derived from respiration of recent photosynthetic products but includes contributions from older, stored C pools. Ongoing investigations will enable us to compare CO2 efflux for trees subjected to experimental drought, and using different life strategies (deciduous versus evergreen oaks) to determine if the use of these older C stores varies with stress.

  1. NASA aerospace database subject scope: An overview

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Outlined here is the subject scope of the NASA Aerospace Database, a publicly available subset of the NASA Scientific and Technical (STI) Database. Topics of interest to NASA are outlined and placed within the framework of the following broad aerospace subject categories: aeronautics, astronautics, chemistry and materials, engineering, geosciences, life sciences, mathematical and computer sciences, physics, social sciences, space sciences, and general. A brief discussion of the subject scope is given for each broad area, followed by a similar explanation of each of the narrower subject fields that follow. The subject category code is listed for each entry.

  2. What’s So Special about STEM? A Comparison of Women’s Retention in STEM and Professional Occupations

    PubMed Central

    Sassler, Sharon; Levitte, Yael; Michelmore, Katherine M.

    2014-01-01

    We follow female college graduates in the National Longitudinal Survey of Youth 1979 and compare the trajectories of women in science, technology, engineering, and mathematics (STEM)-related occupations to other professional occupations. Results show that women in STEM occupations are significantly more likely to leave their occupational field than professional women, especially early in their career, while few women in either group leave jobs to exit the labor force. Family factors cannot account for the differential loss of STEM workers compared to other professional workers. Few differences in job characteristics emerge either, so these cannot account for the disproportionate loss of STEM workers. What does emerge is that investments and job rewards that generally stimulate field commitment, such as advanced training and high job satisfaction, fail to build commitment among women in STEM. PMID:25554713

  3. Mathematical Optimization

    NSDL National Science Digital Library

    Leske, Cavin.

    Some of the most fundamental problems in engineering, science, and mathematics would take the most powerful computer in the world several lifetimes to find an optimal solution. However, near-optimal solutions to many of these problems have been discovered thanks to various methods of mathematical optimization. This Topic in Depth looks at some optimization techniques and the areas to which they have been applied.Argonne National Laboratory hosts an online guide (1) to some of the most well known optimization problems and algorithms. People who are new to the subject can find a wealth of introductory material in the Optimization Tree section, and several applications are illustrated with interactive demonstrations in the Case Studies section. Optimization has roots in operations research, and this tutorial (2) covers many topics within OR. A fun applet requires the user to place as many queens on a chess board as possible without any two being in direct line-of-sight, and an accompanying discussion shows how linear programming can be used to solve this problem; this is one of many resources contained within the tutorial. Two chemical engineering professors at Carnegie Mellon University are the authors of Retrospective on Optimization (3), a fairly comprehensive paper chronicling the history of optimization problems and the development of solution methods. The 51-page document is divided into two main parts; the first outlines some of the most significant advances in the field, and the second looks ahead toward key areas of research needed to evolve optimization further. Highway planning and development is the focus of this paper (4), which proposes using, among other things, genetic algorithms to optimize highway alignment. The authors state that this technique could be used to avoid delays and added costs due to changing plans later in the construction process. Another use of genetic algorithms in optimization is highlighted in this document from the German Aerospace Center (5). The document describes how a novel method for robot design, which involves formulating mathematical representations of robotic constraints and kinematics. These figures can then be used as parameters in a genetic algorithm that would optimize component placement while maintaining the desired functionality. A joint effort between architecture and mechanical engineering researchers at the University of Michigan (6) applied geometrical and topological optimization techniques to building floorplan layout. In the course of their research, they developed an optimization tool that is briefly described and can be downloaded from a Web site given in the paper. The Mathematical Programming Glossary (7) contains short discussions of hundreds of terms related to optimization theory. Each entry includes a clear definition and hyperlinks to other terms, and some of the entries are accompanied by a more in-depth supplement. One of the best sources for current research papers and reports is Optimization Online (8). This repository receives numerous submissions each month, and papers can be browsed by data added or category.

  4. Mathematical Techniques in the Evolutionary Epidemiology of Infectious Diseases

    E-print Network

    Linder, Tamás

    1 Mathematical Techniques in the Evolutionary Epidemiology of Infectious Diseases Troy Day The epidemiology of infectious diseases is a vibrant and growing area of research. Mathematics has come to play of infectious disease stems, in part, from the high levels of genetic variation that are often generated through

  5. A Five-Year University/Community College Collaboration to Build STEM Pipeline Capacity

    ERIC Educational Resources Information Center

    Strawn, Clare; Livelybrooks, Dean

    2012-01-01

    This article investigates the mechanisms through which undergraduate research experiences for community college students can have second-order and multiplier effects on other students and home community college science, technology, engineering, and mathematics (STEM) departments and thus build STEM pipeline capacity. Focus groups with the science…

  6. Opportunities to Explore for Gifted STEM Students in Korea: From Admissions Criteria to Curriculum

    ERIC Educational Resources Information Center

    Choi, Kyong Mi

    2014-01-01

    The admission process and curriculum for gifted students are crucial because they provide opportunities to explore (OTE) for gifted science, technology, engineering, and mathematics (STEM) students. Korean specialized STEM schools, science academies (SAs) and science high schools (SHSs), claim that their screening process and curricula are based…

  7. Visual-Spatial Ability: Important in Stem, Ignored in Gifted Education

    ERIC Educational Resources Information Center

    Andersen, Lori

    2014-01-01

    Visual-spatial ability is a multifaceted component of intelligence that has predictive validity for future achievement in science, technology, engineering, and mathematics (STEM) occupations. Although identification and development of STEM talent is a national priority, visual-spatial ability is rarely measured and relatively neglected in gifted…

  8. STEM Career-changers Transition to Teaching: I Have to Become a Student Again?

    ERIC Educational Resources Information Center

    Grier, Jeanne M.; Johnston, Carol C.

    2008-01-01

    The purpose of this study was to identify the concerns of science, technology, engineering, and mathematics (STEM) career changers to better inform teacher education programs on how to best address their unique needs. We identified three career-changers with former STEM-related careers, each seeking a secondary teaching credential in biology and…

  9. STEM Teachers' Planned and Enacted Attempts at Implementing Engineering Design-Based Instruction

    ERIC Educational Resources Information Center

    Capobianco, Brenda M.; Rupp, Madeline

    2014-01-01

    This study investigates grades 5 and 6 science, technology, engineering, and mathematics (STEM) teachers' planned and actualized engineering design-based instruction, the instruments used to characterize their efforts, and the implications this work has for teachers' implementations of an integrated approach to STEM education.…

  10. Exploring Links between Pedagogical Knowledge Practices and Student Outcomes in STEM Education for Primary Schools

    ERIC Educational Resources Information Center

    Hudson, Peter; English, Lyn; Dawes, Les; King, Donna; Baker, Steve

    2015-01-01

    Science, technology, engineering, and mathematics (STEM) education is an emerging initiative in Australia, particularly in primary schools. This qualitative research aimed to understand Year 4 students' involvement in an integrated STEM education unit that focused on science concepts (e.g., states of matter, testing properties of materials) and…

  11. Doctoral Student Attrition in the STEM Fields: An Exploratory Event History Analysis

    ERIC Educational Resources Information Center

    Lott, Joe L., II; Gardner, Susan; Powers, Daniel A.

    2010-01-01

    The STEM fields, otherwise known as the Sciences, Technology, Engineering, and Mathematics areas, have become the focus of multiple studies and funding initiatives in recent years. Despite these efforts, lingering concerns exist about who enters, who is retained, and who completes the doctorate in STEM fields. This study utilizes discrete-time…

  12. Challenges in STEM Teaching: Implication for Preservice and Inservice Teacher Education Program

    ERIC Educational Resources Information Center

    Teo, Tang Wee; Ke, Kaijie Justin

    2014-01-01

    As former and current STEM (science, technology, engineering, and mathematics) school teachers in Singapore, we explore the challenges we both experienced while teaching at different STEM schools. Through this article, we make a case for the teacher preparation programs locally and around the world to give more attention to a changing education…

  13. Desiring to Fit: Fostering the Success of Community College Transfer Students in STEM

    ERIC Educational Resources Information Center

    Jackson, Dimitra Lynette; Laanan, Frankie Santos

    2015-01-01

    The United States is experiencing a dire need for individuals who possess training and expertise in areas of science, technology, engineering, and mathematics (STEM). With over half of the nation's students entering university environments via community colleges coupled with a large portion of this population majoring in STEM areas, the…

  14. A Realistic Look at STEM and the Role of Community Colleges

    ERIC Educational Resources Information Center

    Hagedorn, Linda Serra; Purnamasari, Agustina Veny

    2012-01-01

    American policy makers, educators, and others are concerned that predicted workforce shortages in science, technology, engineering, and mathematics (STEM) fields will have a catastrophic impact on the economy. This article takes a realistic look at the "STEM problem," identifying how community colleges can be a part of the solution. We provide…

  15. Modeling Successful STEM High Schools in the United States: An Ecology Framework

    ERIC Educational Resources Information Center

    Erdogan, Niyazi; Stuessy, Carol L.

    2015-01-01

    This study aims to generate a conceptual framework for specialized Science, Technology, Engineering, and Mathematics (STEM) schools. To do so, we focused on literature and found specialized STEM schools have existed for over 100 years and recently expanded nationwide. The current perception for these schools can be described as unique environments…

  16. Promoting Literacy-Embedded, Authentic STEM Instruction for Students with Disabilities and Other Struggling Learners

    ERIC Educational Resources Information Center

    Israel, Maya; Maynard, Kathie; Williamson, Pamela

    2013-01-01

    Students with diverse learning needs, including students with disabilities, have historically struggled in science, technology, engineering, and mathematics (STEM) learning. This article highlights barriers that students with disabilities and other struggling learners often face in STEM education. Several applied, evidence-based practices are…

  17. In-Service Teachers' Implementation and Understanding of STEM Project Based Learning

    ERIC Educational Resources Information Center

    Han, Sunyoung; Yalvac, Bugrahan; Capraro, Mary M.; Capraro, Robert M.

    2015-01-01

    In this study, we discussed the participating teachers' implementation and understanding of science, technology, engineering and mathematics (STEM) project based learning (PBL). A research team at a STEM center systematically offered professional development activities to 92 teachers in an urban school district in the southern U.S. To investigate…

  18. Diversifying the STEM Pipeline: Recommendations from the Model Replication Institutions Program

    ERIC Educational Resources Information Center

    Institute for Higher Education Policy, 2010

    2010-01-01

    Launched in 2006 to address issues of national competitiveness and equity in science, technology, engineering, and mathematics (STEM) fields, the National Science Foundation-funded Model Replication Institutions (MRI) program sought to improve the quality, availability, and diversity of STEM education. The project offered technical assistance to…

  19. Advanced Placement Math and Science Courses: Influential Factors and Predictors for Success in College STEM Majors

    ERIC Educational Resources Information Center

    Hoepner, Cynthia Colon

    2010-01-01

    President Obama has recently raised awareness on the need for our nation to grow a larger pool of students with knowledge in science mathematics, engineering, and technology (STEM). Currently, while the number of women pursuing college degrees continues to rise, there remains an under-representation of women in STEM majors across the country.…

  20. Persistence of Women and Minorities in STEM Field Majors: Is It the School that Matters?

    ERIC Educational Resources Information Center

    Griffith, Amanda L.

    2010-01-01

    During college, many students switch from their planned major to another, particularly so when that planned major was in a Science, Technology, Engineering, or Mathematics (STEM) field. A worrying statistic shows that persistence in one of these majors is much lower for women and minorities, suggesting that this may be a leaky joint in the STEM

  1. An Educative, Values-Engaged Approach to Evaluating STEM Educational Programs

    ERIC Educational Resources Information Center

    Greene, Jennifer C.; DeStefano, Lizanne; Burgon, Holli; Hall, Jori

    2006-01-01

    There is concern that the nation's schools are not preparing students to excel in science, technology, engineering, and mathematics (STEM) fields. At both precollege and postsecondary levels, much effort is needed to create and implement powerful STEM curricula, prepare and support highly qualified teachers, deliver effective instruction, and give…

  2. Sustaining Optimal Motivation: A Longitudinal Analysis of Interventions to Broaden Participation of Underrepresented Students in STEM

    ERIC Educational Resources Information Center

    Hernandez, Paul R.; Schultz, P. Wesley; Estrada, Mica; Woodcock, Anna; Chance, Randie C.

    2013-01-01

    The underrepresentation of racial minorities and women in science, technology, engineering, and mathematics (STEM) disciplines is a national concern. Goal theory provides a useful framework from which to understand issues of underrepresentation. We followed a large sample of high-achieving African American and Latino undergraduates in STEM

  3. MemphiSTEP: A STEM Talent Expansion Program at the University of Memphis

    ERIC Educational Resources Information Center

    Russomanno, David J.; Best, Rachel; Ivey, Stephanie; Haddock, John R.; Franceschetti, Don; Hairston, Regina J.

    2010-01-01

    MemphiSTEP is a five-year STEM Talent Expansion Program at the U. of Memphis sponsored by the National Science Foundation. The project focuses on retention and persistence to graduation to increase the number of STEM majors and graduates. The project includes a summer Mathematics Bridge Bootcamp; research experiences for undergraduates;…

  4. Moving beyond Frontiers: How Institutional Context Affects Degree Production and Student Aspirations in STEM

    ERIC Educational Resources Information Center

    Eagan, Mark Kevin, Jr.

    2010-01-01

    Colleges and universities in the U.S. face increasing pressure from policymakers and corporate leaders to increase their production of undergraduate degrees in science, technology, engineering, and mathematics (STEM). These pressures stem from a need to maintain the country's global economic competitiveness in science and engineering innovation.…

  5. Green Action through Education: A Model for Fostering Positive Attitudes about STEM

    ERIC Educational Resources Information Center

    Wheland, Ethel R.; Donovan, William J.; Dukes, J. Thomas; Qammar, Helen K.; Smith, Gregory A.; Williams, Bonnie L.

    2013-01-01

    This paper describes an innovative collaboration between instructors of non-STEM (science, technology, engineering, and mathematics) courses and scientists who teach STEM courses in the GATE (Green Action Through Education) learning community. The scientists in this project presented engaging science--in such diverse locations as a sewage…

  6. Determination of Somatic and Cancer Stem Cell Self-Renewing Symmetric Division Rate Using Sphere Assays

    Microsoft Academic Search

    Loic P. Deleyrolle; Geoffery Ericksson; Brian J. Morrison; J. Alejandro Lopez; Kevin Burrage; Pamela Burrage; Angelo Vescovi; Rodney L. Rietze; Brent A. Reynolds; Mike O. Karl

    2011-01-01

    Representing a renewable source for cell replacement, neural stem cells have received substantial attention in recent years. The neurosphere assay represents a method to detect the presence of neural stem cells, however owing to a deficiency of specific and definitive markers to identify them, their quantification and the rate they expand is still indefinite. Here we propose a mathematical interpretation

  7. Identifying Strategies for Increasing Degree Attainment in STEM: Lessons from Minority-Serving Institutions

    ERIC Educational Resources Information Center

    Perna, Laura W.; Gasman, Marybeth; Gary, Shannon; Lundy-Wagner, Valerie; Drezner, Noah D.

    2010-01-01

    To compete in the global marketplace, numerous reports point to the need for the United States to increase its production of highly educated workers in science, technology, engineering, and mathematics (STEM). Although estimates suggest that the number of STEM-related jobs will grow faster than other jobs, the rate of bachelor's degree production…

  8. Why Students Choose STEM Majors: Motivation, High School Learning, and Postsecondary Context of Support

    ERIC Educational Resources Information Center

    Wang, Xueli

    2013-01-01

    This study draws upon social cognitive career theory and higher education literature to test a conceptual framework for understanding the entrance into science, technology, engineering, and mathematics (STEM) majors by recent high school graduates attending 4-year institutions. Results suggest that choosing a STEM major is directly influenced by…

  9. Boosting the Supply and Effectiveness of Washington's STEM Teachers. Executive Summary

    ERIC Educational Resources Information Center

    New Teacher Project, 2010

    2010-01-01

    In the spring of 2009, the Partnership for Learning (PFL) asked The New Teacher Project (TNTP) to analyze challenges Washington faces in science, technology, engineering and mathematics (STEM) instruction and to make recommendations to overcome these challenges as part of a new STEM initiative. This initiative aims to dramatically raise student…

  10. A Real PLUSS: An Intrusive Advising Program for Underprepared STEM Students

    ERIC Educational Resources Information Center

    Rodgers, Kathy; Blunt, Shelly; Trible, Linda

    2014-01-01

    Increasing numbers of underprepared students are admitted to colleges and universities with aspirations of earning a degree in a science, technology, engineering, or mathematics (STEM) discipline. Transitioning to college is difficult for all students, but can be especially challenging for the underprepared STEM student. Many of these students are…

  11. A Place for Art and Design Education in the STEM Conversation

    ERIC Educational Resources Information Center

    Bequette, James W.; Bequette, Marjorie Bullitt

    2012-01-01

    The recent push for STEM (Science, Technology, Engineering, and Mathematics) education introduces (through the emphasis on engineering) a "design process" to science classrooms; some educators have also pushed for the "artistic or creative process" becoming a part of STEM education. In certain cases, this might be an opportunity for greater…

  12. It's Not What You Know, It's Where You Know It: Lessons from CPD in STEM Education

    ERIC Educational Resources Information Center

    Monk, Martin

    2008-01-01

    In technologically advanced countries, there is a general concern over the recruitment and retention to science, technology, engineering and mathematics (STEM). In the UK, there are much commented upon shortages of qualified STEM secondary teachers. In an effort to produce change, Gatsby Technical Education Projects (GTEP) was set up specifically…

  13. STEM - Minnesota State Colleges and Universities

    NSDL National Science Digital Library

    Although the STEM project at the Minnesota State Colleges and Universities website is designed for the faculty and staff at those institutions, it offers abundant resources for instructors at any higher education institution who might have an interest in Science, Technology, Engineering and Math (STEM) fields. Visitors interested in state and national reports on a broad range of issues should click on the "Resources" link on the left side of the menu, and choose "STEM Reports", to view eight reports from various education and science institutions. For ease of use, it is nice to learn that report is organized into audience, purpose and recommendations, so visitors can quickly assess whether the report is of interest to them. Some of the report topics include "Teaching By Choice: Cultivating Exemplary Community College STEM Faculty", "The Opportunity Equation: Transforming Mathematics and Science Education for Citizenship and the Global Economy" and "Encouraging Girls in Math and Science". The "Project Showcase" will be of interest to visitors who like to see examples of how STEM efforts are being played out in the education community.

  14. Studies in Mathematics Education. Volume 6. Out-of-School Mathematics Education.

    ERIC Educational Resources Information Center

    Morris, Robert, Ed.

    This is the sixth volume in a series designed to improve mathematics instruction by providing resource materials for those responsible for mathematics teaching. Focusing on out-of-school mathematics education, this volume presents a panorama of current practices around the world and suggests future trends. Subjects considered include: (1)…

  15. A contextualised approach towards making connections between mathematics and other school curriculum disciplines

    E-print Network

    Spagnolo, Filippo

    to make explicit links between mathematics and other school curriculum areas. However, approaches to put National Curriculum Statement for Mathematics, Integration is achieved within and across subjectsA contextualised approach towards making connections between mathematics and other school

  16. Pathological yawning as a presenting symptom of brain stem ischaemia in two patients

    PubMed Central

    Cattaneo, L; Cucurachi, L; Chierici, E; Pavesi, G

    2006-01-01

    Two cases of brain stem stroke involving the upper pons and the ponto?mesencephalic junction presented with transient excessive pathological yawning, associated with gait ataxia and in one subject with upper limb and facial hemiparesis. A causal relation is hypothesised between the brain stem lesion and pathological yawning, possibly related to denervation hypersensitivity of a putative brain stem yawn centre. Excessive yawning may herald brain stem ischaemia. PMID:16174652

  17. Gravitropism in leafy dicot stems

    NASA Technical Reports Server (NTRS)

    Salisbury, F. B.

    1984-01-01

    In an attempt to separate plant responses to mechanical stresses from responses to gravity compensation, six treatments were automated: (1) upright stationary controls; (2) horizontal clinostat; (3) intermittent clinostat (plants upright 3.3 minutes out of every 4 minutes, horizontal and rotated once in the remaining time); (4) inversion every ten minutes (plants upside down half the time); (5) inversion and immediate return to the vertical; and (6) vertical rotation. Epinasty appeared only on clinostated and on inverted plants, both subjected to gravity compensation. The mechanics of gravitropic stem bending and the effects of a unilateral application of ethephon of gravitropic bending were also investigated.

  18. Stem cell research, in Parliament.

    PubMed

    Late autumn and early winter have seen a flurry of Parliamentary activity about the law and ethics of embryonic stem cell research. This follows publication of the Chief Medical Officer's Expert Group's report on the subject (see Bulletin 160), the first recommendation of which was that such research should be permitted by means of a regulation under the Human Fertilisation and Embryology Act 1990. The following records some of the episodes in that activity with extracts from some of the speeches made. PMID:11831256

  19. The experiences of Panamanian Afro-Caribbean women in STEM: Voices to inform work with Black females in STEM education

    NASA Astrophysics Data System (ADS)

    Miller, Beverly A. King

    This grounded theory case study examines the experiences of Panamanian Afro-Caribbean women and their membership in STEM (Science, Technology, Engineering and Mathematics) training and careers. The shortage of Science and Math teachers in 48 of 50 States heightens the need for those trained in STEM. Females of African phenotype have persistently been underrepresented in STEM. However, this trend does not appear to have held for Panamanian Afro-Caribbean women. The current study explores issues related to STEM participation for these women by addressing the overarching question: What key factors from the lived experiences of Panamanian Afro-Caribbean women in STEM careers can be used to inform work with females of African phenotype in their pursuit of STEM education and STEM careers? Five women were identified for inclusion in the study's purposive sample. The study draws upon assertions and implications about the relevance of self-identity and collective-identity for membership in STEM. Data for the study was gathered through qualitative interviews, surveys, and observations. The grounded theory approach was used to analyze emergent themes related to participants' responses to the research questions. Two models, the STEM Attainment Model (SAM) and the Ecological Model of Self-Confidence and Bi-Directional Effect, are proposed from evaluation of the identified information. Socio-cultural values and learned strategies were determined to influence self-confidence which is identified as important for persistence in STEM training and careers for females of African phenotype. Evidence supports that the influences of parents, country of origin, neighborhood communities, schools and teachers are factors for persistence. Through the voices of these women, recommendations are offered to the gatekeepers of STEM academic pathways and ultimately STEM careers.

  20. Influence of the stem fixation scenario on load transfer in a hip resurfacing arthroplasty with a biomimetic stem.

    PubMed

    Caouette, C; Bureau, M N; Vendittoli, P-A; Lavigne, M; Nuńo, N

    2015-05-01

    Finite element (FE) analysis is a widely used tool for extensive preclinical testing of orthopaedic implants such as hip resurfacing femoral components, including evaluation of different stem fixation scenarios (cementation vs osseointegration, etc.). Most FE models use surface-to-surface contact elements to model the load-bearing interfaces that connect bone, cement and implant and neglect the mechanical effects of phenomena such as residual stresses from bone cement curing. The objective of the current study is to evaluate and quantify the effect of different stem fixation scenarios and related phenomena such as residual stresses from bone cement curing. Four models of a previously clinically available implant (Durom) were used to model different stem fixation scenarios of a new biomimetic stem: a cemented stem, a frictional stem, a partially and completely bonded stem, with and without residual stresses from bone cement curing. For the frictional stem, stem-bone micromotions were increased from 0% to 61% of the available surface subjected to micromotions between 10 and 40?m with the inclusion of residual stresses from bone cement curing. Bonding the stem, even partially, increased stress in the implant at the stem-head junction. Complete bonding of the stem decreased bone strain at step tip, at the cost of increased strain shielding when compared with the frictional stem and partially bonded stem. The increase of micromotions and changes in bone strain highlighted the influence of interfacial conditions on load transfer, and the need for a better modeling method, one capable of assessing the effect of phenomena such as interdigitation and residual stresses from bone cement curing. PMID:25688031

  1. Examining the Relationships among Classroom Climate, Self-Efficacy, and Achievement in Undergraduate Mathematics: A Multi-Level Analysis

    ERIC Educational Resources Information Center

    Peters, Michelle L.

    2013-01-01

    For nearly 50 years, leaders in American industry, military, education, and politics have focused considerable attention on STEM (science, technology, engineering, and mathematics) education. Given the increased societal demand for STEM careers, the relationships among classroom climate, self-efficacy, and achievement in undergraduate mathematics

  2. Cell Stem Cell Dear Student: Stem Cell Scientists' Advice

    E-print Network

    Cell Stem Cell Forum Dear Student: Stem Cell Scientists' Advice to the Next Generation Emily L on Stem Cells in Society, Stanford, CA 94305, USA 2Department of Family Practice, University of British@stanford.edu (C.T.S.) http://dx.doi.org/10.1016/j.stem.2013.05.007 For the field of pluripotent stem cell biology

  3. Original article Compatible stem taper and stem volume functions

    E-print Network

    Boyer, Edmond

    as merchantable vol- ume at any stem diameter along the trunk. Such functions may be used on their ownOriginal article Compatible stem taper and stem volume functions for oak (Quercus robur L and Q - In this paper we develop compatible stem taper and stem volume functions for oak (Quercus robur L and Q petraea

  4. The Relationship between the Proportion of Same-Major Friendships and Academic and Affective Outcomes for Women and Men in STEM

    ERIC Educational Resources Information Center

    Shapiro, Casey Ann Eznekier

    2011-01-01

    The importance of gender equity in science, technology, engineering, and mathematics (STEM) has continued to be an area of national concern. Research examining women's experiences in STEM has highlighted several factors, both at the student- and institutional-level, that contribute to women's continued underrepresentation in STEM, especially in…

  5. Workshop Title Valentine's Day Redux: Falling in Love with Mathematics!

    E-print Network

    Keinan, Alon

    Workshop Title Valentine's Day Redux: Falling in Love with Mathematics! Overview Do you remember their passion for mathematics and some of the topics that made them fall in love with the subject. Each

  6. Predicting Teacher NTE Scores in Mathematics and Science.

    ERIC Educational Resources Information Center

    Willson, Victor L.; Stoller, Jane E.

    1981-01-01

    Estimates of the criterion-related validity for the National Teacher Examinations (NTE) in mathematics and science were determined empirically. Results suggest that the science tests are not as useful as the mathematics tests as indicators of subject knowledge. (GK)

  7. National Association for Gifted Children - STEM

    NSDL National Science Digital Library

    The aim of the National Association for Gifted Children (NAGC), according to its website, is to "train teachers, encourage parents and educate administrators and policymakers on how to develop and support gifted children." Their site addresses the recent federal emphasis on STEM, and how it is related to work with gifted children. Visitors will learn in the first paragraph of the section entitled "Gifted Children and STEM", the difficulties that may be faced when encouraging STEM careers among gifted children. The site notes that multiple abilities and a "wide range of interests...make[s] selecting a career difficult" for gifted children. Visitors will see, however, that the NAGC does have suggestions on how to help gifted students excel in the STEM subjects. There are links to research on pull-out programs, public math-science high schools, and teacher training programs designed to recognize giftedness. Also, users should look at the very bottom of the STEM page for a link to a fact sheet on STEM and gifted education. This particular fact sheet notes the lack of progress that has been made in high-potential education, which ultimately increases the dropout rates of gifted students in such programs.

  8. Making Insulation Decisions through Mathematical Modeling

    ERIC Educational Resources Information Center

    Yanik, H. Bahadir; Memis, Yasin

    2014-01-01

    Engaging students in studies about conservation and sustainability can support their understanding of making environmental conscious decisions to conserve Earth. This article aims to contribute these efforts and direct students' attention to how they can use mathematics to make environmental decisions. Contributors to iSTEM: Integrating…

  9. Mathematics Genealogy Project

    NSDL National Science Digital Library

    The Mathematics Genealogy Project is maintained by the Department of Mathematics at North Dakota State University. The goal of this project is "to compile information about ALL the mathematicians of the world." It is soliciting information from anyone who participates in the development of research level mathematics or has information on mathematicians to include in the database. The site notes some of the challenges to this project such as imperfect data sources and the ways in which the model the project is using may be anachronistic for the earlier periods. Nonetheless, as of May 15, 2005, the project has amassed 86,827 records. The database can be searched by a variety of criteria, such as individual name, name of school, year of degree, country, math subject, or key word from a thesis.

  10. Mathematical Imagery

    NSDL National Science Digital Library

    This web site, presented by the American Mathematical Society, is devoted to the visualization of mathematics--origami, computer-generated landscapes, tesselations, fractals, anamorphic art, and more. It presents changing galleries of work by mathematicians and artists working in all media, as well as links to online galleries, articles, and other resources on the relationship between mathematics and the visual arts. The site enables viewers to send e-postcards of featured work.

  11. MATHEMATICAL UNDERGRADUATE

    E-print Network

    Wright, Francis

    MAS010 Essential Mathematical Skills 0 49 18 31 44 48 1 MAS108 Probability I 1 34 45 52 46 53 54 1 MAS114 Geometry I 1 13 24 43 17 22 23 1 MAS115 Calculus I 1 21 55 58 32 33 1 MAS116 Intro. to Mathematical Computing 1 12 19 25 15-16 22-23 26-28 2 MAS010 Essential Mathematical Skills 0 49 22 24 33 44 2

  12. Some unsolved problems in discrete mathematics and mathematical cybernetics

    NASA Astrophysics Data System (ADS)

    Korshunov, Aleksei D.

    2009-10-01

    There are many unsolved problems in discrete mathematics and mathematical cybernetics. Writing a comprehensive survey of such problems involves great difficulties. First, such problems are rather numerous and varied. Second, they greatly differ from each other in degree of completeness of their solution. Therefore, even a comprehensive survey should not attempt to cover the whole variety of such problems; only the most important and significant problems should be reviewed. An impersonal choice of problems to include is quite hard. This paper includes 13 unsolved problems related to combinatorial mathematics and computational complexity theory. The problems selected give an indication of the author's studies for 50 years; for this reason, the choice of the problems reviewed here is, to some extent, subjective. At the same time, these problems are very difficult and quite important for discrete mathematics and mathematical cybernetics. Bibliography: 74 items.

  13. Beat the Flood... Redmoor Academy and Practical Action Engaging Students in STEM

    ERIC Educational Resources Information Center

    Cox, Jo

    2014-01-01

    Redmoor Academy is a Key Stage 3 (age 11-14) school in Leicestershire, UK, with a student cohort just over 500 pupils. The Academy has a long history of encouraging pupils to consider how STEM subjects relate to each other and to their future careers, and has made great inroads into ensuring that all teachers of STEM subjects are delivering the…

  14. Discipline-Based Efforts to Enhance Undergraduate STEM Education

    ERIC Educational Resources Information Center

    Ferrini-Mundy, Joan; Gucler, Beste

    2009-01-01

    Efforts to reform and improve teaching and learning in the undergraduate science, technology, engineering, and mathematics (STEM) disciplines have grown increasingly stronger and more focused over the past two decades. Since the early 1990s, some notable unifying developments have given coherence to such initiatives, as well as other developments…

  15. STEM Policy and Science Education: Scientistic Curriculum and Sociopolitical Silences

    ERIC Educational Resources Information Center

    Gough, Annette

    2015-01-01

    This essay responds to the contribution of Volny Fages and Virginia Albe, in this volume, to the field of research in science education, and places it in the context of the plethora of government and industry policy documents calling for more Science, Technology, Engineering and Mathematics (STEM) education in schools and universities and the…

  16. The ROOT and STEM of a Fruitful Business Education

    ERIC Educational Resources Information Center

    Badua, Frank

    2015-01-01

    The author discusses the role of the liberal arts in a business curriculum for an increasingly science, technology, engineering, and mathematics (STEM)-centered world. The author introduces the rhetoric, orthography, ontology, and teleology (ROOT) disciplines, and links them to the traditional liberal arts foundation of higher education. The…

  17. Voices from the Past: Messages for a STEM Future

    ERIC Educational Resources Information Center

    Kelley, Todd R.

    2012-01-01

    The current emphasis in K-12 education on science, technology, engineering, and mathematics (STEM) (Douglas, Iversen, & Kalyandurg, 2004; Sanders, 2009) creates many ways to partner engineering education with these fields. Therefore, it is appropriate to examine the commonalities these fields have with engineering education. Though much of the…

  18. Exploring Opportunities for STEM Teacher Leadership: Summary of a Convocation

    ERIC Educational Resources Information Center

    Olson, Steve; Labov, Jay

    2014-01-01

    Many national initiatives in K-12 science, technology, engineering, and mathematics (STEM) education have emphasized the connections between teachers and improved student learning. Much of the discussion surrounding these initiatives has focused on the preparation, professional development, evaluation, compensation, and career advancement of…

  19. The Postbaccalaureate Goals of College Women in STEM

    ERIC Educational Resources Information Center

    Cole, Darnell; Espinoza, Araceli

    2011-01-01

    For more than three decades, women have outnumbered men in college enrollments, yet they are less likely to graduate and enter a career in science, technology, engineering, or mathematics (STEM). Even though women have made notable gains in social sciences, psychology, and biological and agricultural sciences, significant disparities still persist…

  20. Curricular and Pedagogical Imperatives for Fostering Effective STEM Teacher Preparation

    ERIC Educational Resources Information Center

    King, Caryn M.; Lancaster, Paula E.; DeFrance, Nancy L.; Melin, Jacquelyn A.; Cleveland, Rosemary

    2013-01-01

    This article describes a unique approach to developing and delivering the curriculum for an experimental program that prepares STEM (science, technology, engineering, and mathematics) graduates for teaching in high-needs secondary schools. The context for the collaborative design--including the charge, personnel, and purpose of the program--is…

  1. Living-Learning Programs for Women in STEM

    ERIC Educational Resources Information Center

    Inkelas, Karen Kurotsuchi

    2011-01-01

    This article focuses specifically on one type of undergraduate intervention and its contribution to facilitating success for women in science, technology, engineering, and mathematics (STEM): the living-learning program (LLP). LLPs are a type of learning community best described as curricular linkages designed to provide students with a deeper and…

  2. Who Decides Higher Education Policy? MPS, VCS, STEM and HASS

    ERIC Educational Resources Information Center

    Tight, Malcolm

    2012-01-01

    In the UK, and in many other countries, policy makers and funding bodies emphasise the importance of the STEM disciplines (science, technology, engineering and mathematics), as opposed to the HASS disciplines (humanities, arts and social sciences), in higher education. Yet an examination of the biographies of UK members of parliament (MPs)…

  3. Language Issues in Teaching and Learning of Mathematics

    ERIC Educational Resources Information Center

    Nath, Baiju. K.; V., Vineesha

    2009-01-01

    Today as in the past, many students struggle with mathematics and become affected as they continually encounter obstacles to engagement. Mathematics is generally seen as a difficult subject and how this subject is communicated to pupils will influence how pupils learn the subject. Classroom routines play an important role in developing students'…

  4. Tracking adult stem cells

    Microsoft Academic Search

    Hugo J Snippert; Hans Clevers

    2011-01-01

    The maintenance of stem-cell-driven tissue homeostasis requires a balance between the generation and loss of cell mass. Adult stem cells have a close relationship with the surrounding tissue—known as their niche—and thus, stem-cell studies should preferably be performed in a physiological context, rather than outside their natural environment. The mouse is an attractive model in which to study adult mammalian

  5. Stem Cell Biology

    Microsoft Academic Search

    Elizabeth O. Hexner; Stephen G. Emerson

    \\u000a Stem cells are functionally defined as long-lived cells that can both self-renew and differentiate into multiple cell types.\\u000a Embryonic stem cells, considered totipotent cells, give rise to all embryonic tissue layers and, consequently, all tissue\\u000a types. Hematologists\\/oncologists are perhaps most familiar with hematopoietic stem cells (HSCs): the single pluripotent cell\\u000a that can give rise to all lymphoid, myeloid and erythroid

  6. Community, Inquiry, Leadership: Exploring Early Career Opportunities That Support STEM Teacher Growth and Sustainability

    ERIC Educational Resources Information Center

    Galosy, Jodie A.; Gillespie, Nicole M.

    2013-01-01

    Much has been written about the need for high-quality science, technology, engineering, and mathematics (STEM) teachers and their role in U.S. educational reform. In this article we provide evidence that beginning science and mathematics teachers need a blend of three mutually reinforcing learning opportunities for growth and sustainability:…

  7. The History of Specialized STEM Schools and the Formation and Role of the NCSSSMST

    ERIC Educational Resources Information Center

    Thomas, Jerald; Williams, Corinne

    2010-01-01

    The creation of specialized Science, Technology, Engineering, and Mathematics (STEM) schools over the past decades has largely been related to economic, political, and educational concerns. The recent America COMPETES Act (2007), for example, intends to strengthen public secondary educational opportunities in science, technology, and mathematics

  8. 1st Annual Conference on the Aiming for Excellence in STEM Learning and Teaching

    E-print Network

    Conrad, Marc

    teaching and across various disciplines, from mathematics and chemistry through medicine and nursing (Parr1st Annual Conference on the Aiming for Excellence in STEM Learning and Teaching 12 ­ 13 April 2012, Imperial College, London & The Royal Geographical Society. ZAPPERS IN TEACHING MATHEMATICS Vesna Perisi

  9. Characteristics of Schools Successful in STEM: Evidence from Two States' Longitudinal Data

    ERIC Educational Resources Information Center

    Hansen, Michael

    2014-01-01

    Present federal education policies promote learning in science, technology, engineering, and mathematics (STEM) and the participation of minority students in these fields. Using longitudinal data on students in Florida and North Carolina, value-added estimates in mathematics and science are generated to categorize schools into performance levels…

  10. Learning after You Know It All: When STEM Faculty Teach Teachers, Who Learns?

    ERIC Educational Resources Information Center

    Zhang, Xiaodong; McInerney, Joseph; Frechtling, Joy

    2010-01-01

    The National Science Foundation (NSF) Math and Science Partnership (MSP) program is a major research and development effort to improve K-12 student achievement in mathematics and science. The substantial engagement of science, technology, engineering, and mathematics (STEM) disciplinary faculty with school-teachers is a hallmark of the MSP…

  11. Breaking It Down: Engineering Student STEM Confidence at the Intersection of Race/Ethnicity and Gender

    ERIC Educational Resources Information Center

    Litzler, Elizabeth; Samuelson, Cate C.; Lorah, Julie A.

    2014-01-01

    It is generally accepted that engineering requires a strong aptitude for mathematics and science; therefore, students' judgments regarding their competence in these areas as well as engineering likely influence their confidence in engineering. Little is known about how self-confidence in science, mathematics, and engineering courses (STEM

  12. Valve stem oil deflector

    SciTech Connect

    Stritzke, B.G.

    1988-08-16

    This patent describes an oil deflector for attachment to a valve stem of an internal combustion engine or the like comprising a molded plastic cup having a generally cylindrical wall section and an enlarged transversely extending end wall defining a neck portion, having an opening for receiving a valve stem, a radially inwardly opening annular groove on an inner face of the opening in the neck portion, an O-ring in the groove, circumferentially spaced teeth on opposite sides of the groove each of which is engageable with a valve stem extending through the neck portion of the deflector to preclude tipping of the deflector relative to the valve stem.

  13. Hypertensive brain stem encephalopathy.

    PubMed

    Liao, Pen-Yuan; Lee, Chien-Chang; Chen, Cheng-Yu

    2015-01-01

    A 48-year-old man presented with headache and extreme hypertension. Computed tomography showed diffuse brain stem hypodensity. Magnetic resonance imaging revealed diffuse brain stem vasogenic edema. Hypertensive brain stem encephalopathy is an uncommon manifestation of hypertensive encephalopathy, which classically occurs at parietooccipital white matter. Because of its atypical location, the diagnosis can be challenging. Moreover, the coexistence of hypertension and brain stem edema could also direct clinicians toward a diagnosis of ischemic infarction, leading to a completely contradictory treatment goal. PMID:25082596

  14. The Effects of Constructivist Learning Environment on Prospective Mathematics Teachers' Opinions

    ERIC Educational Resources Information Center

    Narli, Serkan; Baser, Nes'e

    2010-01-01

    To explore the effects of constructivist learning environment on prospective teachers' opinions about "mathematics, department of mathematics, discrete mathematics, countable and uncountable infinity" taught under the subject of Cantorian Set Theory in discrete mathematics class, 60 first-year students in the Division of Mathematics Education at…

  15. Mathematics Competition

    E-print Network

    Le Roy, Robert J.

    Canadian Mathematics Competition An activity of the Centre for Education in Mathematics) 19 (E) 129 n n3 + n - 1 1 1 2 9 3 29 4 67 5 7. The circle graph shows the favourite ice cream. Steven weighs 20% more than Danny. Steven's weight is (A) 50 kg (B) 60 kg (C) 48 kg (D) 32 kg (E) 72 kg

  16. Nonlocal Mathematics

    Microsoft Academic Search

    Mukul Patel

    2000-01-01

    This is a research announcement on what is best termed `nonlocal' methods in mathematics. (This is not to be confused with global analysis.) The nonlocal formulation of physics in \\\\cite{principia} points to a fresh viewpoint in mathematics: Nonlocal viewpoint. It involves analyzing objects of geometry and analysis using nonlocal methods, as opposed to the classical local methods, e.g., Newton's calculus.

  17. Mathematics Scrapbook

    ERIC Educational Resources Information Center

    Prochazka, Helen

    2004-01-01

    One section of this "scrapbook" section describes Pythagoras' belief in the connections between music and mathematics -- that everything in the universe was a series of harmonies and regulated by music. Another section explains why Phythagoras felt it important for women to be encouraged to learn mathematics. At least 28 women were involved in his…

  18. Embryonic stem cell application in drug discovery

    PubMed Central

    Lou, Yi-jia; Liang, Xing-guang

    2011-01-01

    Embryonic stem (ES) cells and their differentiated progeny offer tremendous potential for regenerative medicine, even in the field of drug discovery. There is an urgent need for clinically relevant assays that make use of ES cells because of their rich biological utility. Attention has been focused on small molecules that allow the precise manipulation of cells in vitro, which could allow researchers to obtain homogeneous cell types for cell-based therapies and discover drugs for stimulating the regeneration of endogenous cells. Such therapeutics can act on target cells or their niches in vivo to promote cell survival, proliferation, differentiation, and homing. In the present paper, we reviewed the use of ES cell models for high-throughput/content drug screening and toxicity assessment. In addition, we examined the role of stem cells in large pharmaceutical companies' R&D and discussed a novel subject, nicheology, in stem cell-related research fields. PMID:21217770

  19. Exploring Earth Systems Through STEM

    NASA Astrophysics Data System (ADS)

    Chen, Loris; Salmon, Jennifer; Burns, Courtney

    2015-04-01

    During the 2010 school year, grade 8 science teachers at Dwight D. Eisenhower Middle School in Wyckoff, New Jersey, began using the draft of A Framework for K-12 Science Education to transition to the Next Generation Science Standards. In an evolutionary process of testing and revising, teachers work collaboratively to develop problem-based science, technology, engineering, and mathematics (STEM) units that integrate earth science, physical science, and life science topics. Students explore the interconnections of Earth's atmosphere, lithosphere, hydrosphere, and biosphere through problem-based learning. Problem-based learning engages students in (1) direct observations in the field and classroom, (2) collection and analysis of data from remote sensors and hand-held sensors, and (3) analysis of physical, mathematical, and virtual models. Students use a variety of technologies and applications in their investigations, for example iPad apps, Google Classroom, and Vernier sensors. Data from NASA, NOAA, non-government organizations, and scientific research papers inspire student questions and spark investigations. Teachers create materials and websites to support student learning. Teachers curate reading, video, simulations, and other Internet resources for students. Because curriculum is standards-based as opposed to textbook-based, teacher participation in workshops and institutes frequently translates into new or improved study units. Recent programs include Toyota International Teacher Program to Costa Rica, Japan Society Going Global, Siemens STEM Academy, U.S. Naval Academy SET Sail, and NJSTA Maitland P. Simmons Memorial Award Summer Institute. Unit themes include weather and climate, introduction to general chemistry and biochemistry, and cells and heredity. Each if the three 12-week units has embedded engineering challenges inspired by current events, community needs, and/or the work of scientists. The unit segments begin with a problem, progress to observations and data collection, and end with an engineering application. English language arts and mathematics skills are developed through performance assessments that include written arguments that require students to state a claim and support the claim with evidence, analysis, and reasoning. Student selected capstone projects are completed during the final three weeks of the school year. Partnerships with universities, research scientists, and science centers are essential to the development of unit challenges. Collaborative projects have included studies of iron cycling in the Ross Sea with scientists from Rutgers University, climate and climate change using NASA data and resources from Liberty Science Center, human and natural impacts on endangered species with San Diego Zoo Institute for Conservation Research, and air quality monitoring with the University of Northern Iowa. Grant funds have supported student research projects involving air quality improvement, urban heat island mitigation, alternative energies, and sustainability.

  20. Making Heads or Tails: Planarian Stem Cells in the Classroom†

    PubMed Central

    Srougi, Melissa C.; Thomas-Swanik, Jackie; Chan, John D.; Marchant, Jonathan S.; Carson, Susan

    2014-01-01

    Stem cells hold great promise in the treatment of diseases ranging from cancer to dementia. However, as rapidly as the field of stem cell biology has emerged, heated political debate has followed, scrutinizing the ethical implications of stem cell use. It is therefore imperative to promote scientific literacy by educating students about stem cell biology. Yet, there is a definite lack of material to engage students in this subject at the basic science level. Therefore, we have developed and implemented a hands-on introductory laboratory module that introduces students to stem cell biology and can be easily incorporated into existing curricula. Students learn about stem cell biology using an in vivo planarian model system in which they down-regulate two genes important in stem cell differentiation using RNA interference and then observe the regenerative phenotype. The module was piloted at the high school, community college, and university levels. Here, we report that introductory biology students enrolled at a community college were able to demonstrate gains in learning after completion of a one-hour lecture and four 45-minute laboratory sessions over the course of three weeks. These gains in learning outcomes were objectively evaluated both before and after its execution using a student quiz and experimental results. Furthermore, students’ self-assessments revealed increases in perceived knowledge as well as a general interest in stem cells. Therefore, these data suggest that this module is a simple, useful way to engage and to teach students about stem cell biology. PMID:24839511

  1. TOPICAL REVIEW: Stem cells engineering for cell-based therapy

    NASA Astrophysics Data System (ADS)

    Taupin, Philippe

    2007-09-01

    Stem cells carry the promise to cure a broad range of diseases and injuries, from diabetes, heart and muscular diseases, to neurological diseases, disorders and injuries. Significant progresses have been made in stem cell research over the past decade; the derivation of embryonic stem cells (ESCs) from human tissues, the development of cloning technology by somatic cell nuclear transfer (SCNT) and the confirmation that neurogenesis occurs in the adult mammalian brain and that neural stem cells (NSCs) reside in the adult central nervous system (CNS), including that of humans. Despite these advances, there may be decades before stem cell research will translate into therapy. Stem cell research is also subject to ethical and political debates, controversies and legislation, which slow its progress. Cell engineering has proven successful in bringing genetic research to therapy. In this review, I will review, in two examples, how investigators are applying cell engineering to stem cell biology to circumvent stem cells' ethical and political constraints and bolster stem cell research and therapy.

  2. Membrane Glycolipids in Stem Cells

    PubMed Central

    Yu, Robert K.; Suzuki, Yusuke; Yanagisawa, Makoto

    2015-01-01

    Stem cells, such as embryonic stem cells, hematopoietic stem cells, neural stem cells, mesenchymal stem cells, and very small embryonic-like stem cells, are undifferentiated cells that are endowed with a high potential for proliferation and the capacity for self-renewal with retention of pluri/multipotency to differentiate into their progenies. Recently, studies regarding the biological functions of glycolipids and cell surface microdomains (caveolae, lipid rafts, or glycolipid-enriched microdomains) in stem cells are emerging. In this review, we introduce the expression patterns of glycolipids and the functional roles of cell surface microdomains in stem cells. PMID:19716368

  3. Designing for STEM Integration

    ERIC Educational Resources Information Center

    Berland, Leema K.

    2013-01-01

    We are increasingly seeing an emphasis on STEM integration in high school classrooms such that students will learn and apply relevant math and science content while simultaneously developing engineering habits of mind. However, research in both science education and engineering education suggests that this goal of truly integrating STEM is rife…

  4. Lock For Valve Stem

    NASA Technical Reports Server (NTRS)

    Burley, Richard K.; Guirguis, Kamal S.

    1991-01-01

    Simple, cheap device locks valve stem so its setting cannot be changed by unauthorized people. Device covers valve stem; cover locked in place with standard padlock. Valve lock made of PVC pipe and packing band. Shears, drill or punch, and forming rod only tools needed.

  5. Adult stem cell plasticity

    Microsoft Academic Search

    Richard Poulsom; Malcolm R. Alison; Stuart J. Forbes; Nicholas A. Wright

    2002-01-01

    Observations made in the last few years support the existence of pathways, in adult humans and rodents, that allow adult stem cells to be surprisingly flexible in their differentiation repertoires. Termed plasticity, this property allows adult stem cells, assumed, until now, to be committed to generating a fixed range of progeny, to switch, when they have been relocated, to make

  6. Bioreactors Stem Cells

    E-print Network

    Schüler, Axel

    Keywords Bioreactors Stem Cells Regenerative Medicine Tissue Engineering Pharmacology » Prof. M.; yeZhelyev, M.; eMMrich, F.; o'regan, r.; bader, a. Quantum dots for human mesenchymal stem cells and mechanical forces mediated to the cells by the matrix. The in vivo extracellular matrix constitutes

  7. Science Mathematics Engineering

    E-print Network

    Hamlet, Richard

    . Philosophy of Software Engineering II. Mathematics, Science, Engineering III. And for Software EngineeringScience Mathematics Engineering . ­ p.1 #12;Science Mathematics Engineering Science, Computer `Science', . ­ p.1 #12;Science Mathematics Engineering Science, Computer `Science', Mathematics, . ­ p.1

  8. COMENIUS UNIVERSITY Faculty of Mathematics, Physics and Informatics

    E-print Network

    Veres, Peter

    COMENIUS UNIVERSITY Faculty of Mathematics, Physics and Informatics Subject Information Sheet Code. Gauss's constant and masses of planets. Energy integral and limits of velocities. Elliptical, parabolic

  9. Cognitive and affective evaluation of selected aspects of the mathematics education component of the elementary school teacher preparation program at Texas A&M University

    E-print Network

    Rosenstein, Shari Lee

    1986-01-01

    mathematics (i. e. ~ low mathematics anxiety level). "There is a need for teachers who are free of math anxiety, who understand basic mathematics concepts, and who perceive mathematics as equally important and useful for both girls and boys so... of Mathematics Anxiety Upon Student Achievement, 4) Mathematically Anxious Elementary School Teachers, and 5) Summary of Relevant Research on Mathematics Anxiety. Introduction to Mathematics Anxiety The subject of mathematics anxiety has been researched...

  10. Guest Editorial: Where Are the Women of Color? Data on African American, Hispanic, and Native American Faculty in STEM

    NSDL National Science Digital Library

    Marcy H. Towns

    2010-03-04

    In October of 2009, the Committee on Equal Opportunities in Science and Engineer (CEOSE) held a symposium on Women of Color in STEM (science, technology, engineering, and mathematics; NSF-OAI). The symposium featured data pertaining to Asian, African Amer

  11. STEM learning activity among home-educating families

    NASA Astrophysics Data System (ADS)

    Bachman, Jennifer

    2011-12-01

    Science, technology, engineering, and mathematics (STEM) learning was studied among families in a group of home-educators in the Pacific Northwest. Ethnographic methods recorded learning activity (video, audio, fieldnotes, and artifacts) which was analyzed using a unique combination of Cultural-Historical Activity Theory (CHAT) and Mediated Action (MA), enabling analysis of activity at multiple levels. Findings indicate that STEM learning activity is family-led, guided by parents' values and goals for learning, and negotiated with children to account for learner interests and differences, and available resources. Families' STEM education practice is dynamic, evolves, and influenced by larger societal STEM learning activity. Parents actively seek support and resources for STEM learning within their home-school community, working individually and collectively to share their funds of knowledge. Home-schoolers also access a wide variety of free-choice learning resources: web-based materials, museums, libraries, and community education opportunities (e.g. afterschool, weekend and summer programs, science clubs and classes, etc.). A lesson-heuristic, grounded in Mediated Action, represents and analyzes home STEM learning activity in terms of tensions between parental goals, roles, and lesson structure. One tension observed was between 'academic' goals or school-like activity and 'lifelong' goals or everyday learning activity. Theoretical and experiential learning was found in both activity, though parents with academic goals tended to focus more on theoretical learning and those with lifelong learning goals tended to be more experiential. Examples of the National Research Council's science learning strands (NRC, 2009) were observed in the STEM practices of all these families. Findings contribute to the small but growing body of empirical CHAT research in science education, specifically to the empirical base of family STEM learning practices at home. It also fills a current gap regarding STEM learning among home-educating families, a small, but growing part of society's STEM learning infrastructure for which little research exists.

  12. Mathematics Education as a Design Science

    Microsoft Academic Search

    Richard Lesh; Bharath Sriraman

    2005-01-01

    Abstract: We ,propose ,re-conceptualizing the ,field of mathematics,education ,research as that ,of a ,design science akin to engineering and other emerging,interdisciplinary fields which involve the interaction of “subjects”, conceptual systems,and technology ,influenced by social ,constraints and affordances. Numerous ,examples ,from ,the ,history ,and philosophy,of science,and mathematics,and ongoing,findings ofM&,M research ,are drawn ,to illustrate ,our notion of mathematics,education research as a

  13. ADULT MESENCHYMAL STEM CELLS DERIVED FROM EMBRYONIC STEM CELLS

    Microsoft Academic Search

    N. L. BOYD; P. BOSCH; S. L. STICE

    Mesenchymal stem cells (MSC) are useful in cell therapy and stem cell research but they have a limited lifespan in culture. Our goal was to develop a unique and limitless supply of mesenchymal stem cells derived from human embryonic stem cells, opening up new uses and enhance existing uses of these important cell types. For any application that uses large

  14. Cell Stem Cell Stem Cell Epigenetics: Looking Forward

    E-print Network

    Sander, Maike

    Cell Stem Cell Voices Stem Cell Epigenetics: Looking Forward Epigenetics in Adult SCs The integrity of tissues is maintained by adult stem cells during adulthood. How- ever, recent work indicates that tissues often contain more than one population of stem cells that are located at distinct niches and display

  15. ``Stemness'': Transcriptional Profiling of Embryonic and Adult Stem Cells

    Microsoft Academic Search

    Miguel Ramalho-Santos; Soonsang Yoon; Yumi Matsuzaki; Richard C. Mulligan; Douglas A. Melton

    2002-01-01

    The transcriptional profiles of mouse embryonic, neural, and hematopoietic stem cells were compared to define a genetic program for stem cells. A total of 216 genes are enriched in all three types of stem cells, and several of these genes are clustered in the genome. When compared to differentiated cell types, stem cells express a significantly higher number of genes

  16. Cell Stem Cell Control of Stem Cell Fate by Physical

    E-print Network

    Chen, Christopher S.

    Cell Stem Cell Review Control of Stem Cell Fate by Physical Interactions with the Extracellular, Philadelphia, PA 19104, USA 5Stem Cell Laboratory, Pennington Biomedical Research Center, Louisiana State.06.016 A diverse array of environmental factors contributes to the overall control of stem cell activity

  17. School of Mathematical Sciences MSc Mathematics and MSc Mathematical Finance

    E-print Network

    Wright, Francis

    School of Mathematical Sciences MSc Mathematics and MSc Mathematical Finance WELCOME EVENT 4 Facilities (Matthew Harvey, Finance and Facilities Officer) 3. SMS IT Facilities and Logins (Sysman) 4 Mathematical Finance (room MTH 103) Introduction to the MSc Mathematical Finance (Prof. Alexander Gnedin

  18. Computational Mathematics

    E-print Network

    Johannes Kepler University Linz Institute of Analysis and Computational Mathematics A principle for constructing parallel AMG and its realization Gundolf Haase, Michael Kuhn Johannes Kepler University Linz. Wolfgang, Upper Austria #12; Johannes Kepler University Linz Institute of Analysis and Computational

  19. Evolution and cancer: a mathematical biology approach

    Microsoft Academic Search

    Marek Kimmel

    2010-01-01

    Evolution and cancer: a mathematical biology approach This thematic series is concerned with various ways Evolution is intertwined with cancer. A group of cancer researchers and mathematical modelers, with an interest in the subject, was invited to contribute papers on topics ranging from carcinogenesis through progression of cancer through therapy. The resulting collection of ten papers is briefly introduced below.

  20. Mathematical Thinking: From Cacophony to Consensus

    ERIC Educational Resources Information Center

    Argyle, Sean F.

    2012-01-01

    Various standards have demanded that teachers improve "mathematical thinking," but definitions are vague--if present at all. What little research on the subject exists is disjointed and dissenting, leading some researchers to lament the possibility of ever coming to an agreement on how to define "mathematical thinking" as a…

  1. Synopses for Modern Secondary School Mathematics.

    ERIC Educational Resources Information Center

    Organisation for Economic Cooperation and Development, Paris (France). Directorate for Scientific Affairs.

    The 1959 Royaumont seminar "New Thinking in School Mathematics," having agreed on the need for modernization, recommended that a second group of experts work out detailed synopses of the entire subject matter of secondary school mathematics. This book is the report of the second seminar and contains the Dubrovnik Program which stimulated much…

  2. Stem Cells: Physical Stimuli-Induced Chondrogenic Differentiation of Mesenchymal Stem Cells Using Magnetic Nanoparticles (Adv. Healthcare Mater. 9/2015).

    PubMed

    Son, Boram; Kim, Hwan D; Kim, Minsoo; Kim, Jeong Ah; Lee, Jinkyu; Shin, Heungsoo; Hwang, Nathaniel S; Park, Tai Hyun

    2015-06-01

    On page 1339, N. S. Hwang, T. H. Park, and co-workers induce chondrogenic differentiation of mesenchymal stem cells by physical stimulation using magnetic nanoparticles. Magnetic nanoparticles isolated from magnetic bacteria are introduced into the mesenchymal stem cells. Then, the magnetic particle-incorporated mesenchymal stem cells are subjected to static magnetic field and/or magnet-derived shear stress. This magnetic nanoparticle-mediated physical stimulation can be used for cartilage tissue engineering. PMID:26109038

  3. Adipose-derived Stem Cells for Myocardial Infarction

    Microsoft Academic Search

    Manuel Mazo; Juan José Gavira; Beatriz Pelacho; Felipe Prosper

    2011-01-01

    In recent years, stem cell treatment of myocardial infarction has elicited great enthusiasm upon scientists and physicians\\u000a alike, thus making the finding of a suitable cell a compulsory subject for modern medicine. Due to its potential, accessibility\\u000a and efficiency of harvesting, adipose tissue has become one of the most attractive sources of stem cells for regenerative\\u000a therapies. The differentiation capacity

  4. FDA Regulation of Stem Cellâ??Based Products

    NSDL National Science Digital Library

    Donald Fink (U.S. Food and Drug Administration; )

    2009-06-26

    In the United States, clinical trials designed to demonstrate the safety and effectiveness of stem cellâ??based products are regulated by the U.S. Food and Drug Administration (FDA). To ensure that subjects enrolled in a clinical study involving stem cellâ??based products are not exposed to significant and unreasonable risk, the FDA reviews medical and scientific information to determine whether there is sufficient safety assurance to permit initiation of human clinical studies.

  5. Emerging concept of cancer as a stem cell disorder

    Microsoft Academic Search

    Mariusz Z. Ratajczak; Magda Kucia; Hanna Dobrowolska; Jens Wanzeck; Ryan Reca; Janina Ratajczak

    2006-01-01

    Evidence has accumulated that malignancy arises from maturation arrest of stem cells — rather than the dedifferentiation of\\u000a somatic cells. To support this notion, stem cells in contrast to somatic cells are long lived cells and thus may become the\\u000a subject of accumulating mutations that are crucial for the initiation\\/progression of cancer. More importantly they may maintain\\u000a these mutations and

  6. Prostate cancer stem cells

    PubMed Central

    Lang, SH; Frame, FM; Collins, AT

    2009-01-01

    Despite the discovery over 60 years ago by Huggins and Hodges 1 that prostate cancers respond to androgen deprivation therapy, hormone-refractory prostate cancer remains a major clinical challenge. There is now mounting evidence that solid tumours originate from undifferentiated stem cell-like cells coexisting within a heterogeneous tumour mass that drive tumour formation, maintain tumour homeostasis and initiate metastases. This review focuses upon current evidence for prostate cancer stem cells, addressing the identification and properties of both normal and transformed prostate stem cells. PMID:19040209

  7. Stem Cell Differentiation Game

    NSDL National Science Digital Library

    2013-07-30

    This game uses a modified Uno deck to review concepts related to stem cell research and diabetes. Specifically, it covers material in the "Pulse-Chase Primer," "Pancreatic Beta Cells," and "Microarrays and Stem Cells" activities from the same resource which may or may not be necessary to complete prior to this activity (depending on learner's prior knowledge). Learners accumulate points and answer questions about stem cells, development, and microarrays so that they can be the first to differentiate into a pancreatic beta (?) cell. This activity is recommended for learners studying Biology at the High School (honors, IB and AP) or Undergraduate level.

  8. Mesenchymal autologous stem cells.

    PubMed

    Falavigna, Asdrubal; da Costa, Jaderson Costa

    2015-02-01

    The use of cell-based therapies for spinal cord injuries has recently gained prominence as a potential therapy or component of a combination strategy. Experimental and clinical studies have been performed using mesenchymal stem cell therapy to treat spinal cord injuries with encouraging results. However, there have been reports on the adverse effects of these stem cell-based therapies, especially in the context of tumor modulation. This article surveys the literature relevant to the potential of mesenchymal autologous stem cells for spinal cord injuries and their clinical implications. PMID:23402865

  9. Science and Technology Educators' Enacted Curriculum: Areas of Possible Collaboration for an Integrative STEM Approach in Public Schools

    ERIC Educational Resources Information Center

    Brown, Josh; Brown, Ryan; Merrill, Chris

    2012-01-01

    Science, Technology, Engineering, and Mathematics (STEM) teachers teach multiple concepts that lend themselves to possible collaboration on a daily basis. Much like Metz's (2009) insightful discussion about the importance of science educators creating partnerships in the community "outside the school walls," integrative STEM teaching also requires…

  10. "I Like Science but It's Not for Me": The Need to Improve STEM Careers Education

    ERIC Educational Resources Information Center

    Archer, Louise; Tomei, Anthony

    2014-01-01

    There is widespread agreement that more needs to be done to increase and diversify post-16 participation in science, technology, engineering and mathematics (STEM). Here we discuss recent research evidence on what influences participation in science. We introduce a proposal for integrating awareness of STEM careers into the science curriculum for…

  11. To Choose or Not to Choose Science: Constructions of Desirable Identities among Young People Considering a STEM Higher Education Programme

    ERIC Educational Resources Information Center

    Holmegaard, Henriette Tolstrup; Madsen, Lene Mřller; Ulriksen, Lars

    2014-01-01

    In the literature, there is a general concern that a less number of students choose to study science, technology, engineering or mathematics (STEM). This paper presents results from a Danish longitudinal study which examines students' choice of whether or not to continue studying STEM after upper-secondary school. In particular, this study…

  12. Improving Postsecondary STEM Education: Strategies for Successful Interdisciplinary Collaborations and Brokering Engagement with Education Research and Theory

    ERIC Educational Resources Information Center

    Bouwma-Gearhart, Jana; Perry, Kristen H.; Presley, Jennifer B.

    2014-01-01

    This article describes factors that influence the success of collaborations involving science, technology, engineering, and mathematics (STEM) and Education faculty at research-focused universities who work toward postsecondary STEM education improvement. We provide insight into how interdisciplinary faculty may successfully collaborate given…

  13. Stem cell niches in mammals

    Microsoft Academic Search

    Thimios A. Mitsiadis; Ornella Barrandon; Ariane Rochat; Yann Barrandon; Cosimo De Bari

    2007-01-01

    Stem cells safeguard tissue homeostasis and guarantee tissue repair throughout life. The decision between self-renewal and differentiation is influenced by a specialized microenvironment called stem cell niche. Physical and molecular interactions with niche cells and orientation of the cleavage plane during stem cell mitosis control the balance between symmetric and asymmetric division of stem cells. Here we highlight recent progress

  14. Cell Stem Cell Clinical Progress

    E-print Network

    Zandstra, Peter W.

    Cell Stem Cell Clinical Progress Rapid Expansion of Human Hematopoietic Stem Cells by Automated *Correspondence: peter.zandstra@utoronto.ca DOI 10.1016/j.stem.2012.01.003 SUMMARY Clinical hematopoietic implementations of hematopoietic stem cells (HSCs) and their deriva- tives further increase interest in strategies

  15. LESSON PLAN Stem Cell Discussion

    E-print Network

    Rambaut, Andrew

    LESSON PLAN Stem Cell Discussion Learning objectives Students will: · consider the implications of stem cell research · research the current research situation · debate the future of stem cell of the Wellcome Trust, discusses why stem cells have the potential to treat many debilitating diseases, and why

  16. Disguising adult neural stem cells

    Microsoft Academic Search

    Cindi M Morshead; Derek van der Kooy

    2004-01-01

    A description of adult neural stem cells has remained somewhat elusive. With no unique and definitive markers to label stem cells in general, neural stem cells are difficult to identify definitively and one is forced to examine cell behavior — leading to the retrospective identification of a stem cell. The most prevalent view in the literature describes the adult forebrain

  17. Dismantling the Birdcage: Adolescent Girls' Attitudes towards Learning Mathematics with a Relational Pedagogy in a Problem-Based Environment

    ERIC Educational Resources Information Center

    Schettino, Carmel

    2013-01-01

    Although the Gender Achievement Gap is closing in mathematics, the "interest gap" in pursuing STEM fields is not. Mathematics education research has discussed constructivist, student-centered and inclusive methods of teaching that have been found to encourage students that have underachieved and been underrepresented in STEM fields. One…

  18. COMENIUS UNIVERSITY Faculty of Mathematics, Physics and Informatics

    E-print Network

    Veres, Peter

    COMENIUS UNIVERSITY Faculty of Mathematics, Physics and Informatics Subject Information Sheet Code perturbations. Gravitational potential of an extended body. Brief curriculum of the subject: General integrals Mechanics, London, 1961. Herrick, S.: Astrodynamics 2, New York 1972. Kovalevsky, J.: Introduction

  19. COMENIUS UNIVERSITY Faculty of Mathematics, Physics and Informatics

    E-print Network

    Veres, Peter

    COMENIUS UNIVERSITY Faculty of Mathematics, Physics and Informatics Subject Information Sheet Code mechanics, planetary system. Brief curriculum of the subject: Object of astronomy; coordinate systems. Springer, Berlin, New York Siroký, J., Siroká, M.: 1965, Základy astronomie v píkladech, SPN, Praha

  20. Mathematical Perspectives

    SciTech Connect

    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.

  1. Clay Mathematics Proceedings Noncommutative Geometry and Number Theory

    E-print Network

    Tretkoff, Paula

    Clay Mathematics Proceedings Noncommutative Geometry and Number Theory Paula B. Cohen Introduction of the Riemann Hypothesis, from which we quote several times, is given by Enrico Bombieri on the Clay Mathematics Mathematics Subject Classification 11J06, 58B34. The author acknowledges support from the Clay Foundation. c

  2. The Mathematics Education into the 21st Century Project

    E-print Network

    Spagnolo, Filippo

    of approximately two million, the mathematics curriculum in secondary schools has changed considerably over a complete overhaul of the mathematics curriculum. One of the results was that a new subject calledThe Mathematics Education into the 21st Century Project Proceedings ooff tthhee

  3. Enriching the Teaching of Biology with Mathematical Concepts

    ERIC Educational Resources Information Center

    Andersen, Janet

    2007-01-01

    Secondary school educators are told to teach more mathematics and science to their students to help them become more proficient in the two subjects. Coordination of mathematics and science teaching is recognized as another means of improving proficiency. The National Science Foundation has funded the "Mathematics, Science and Technology…

  4. Making Sense: Teaching and Learning Mathematics with Understanding.

    ERIC Educational Resources Information Center

    Hiebert, James; And Others

    This book addresses the subject of learning mathematics with an understanding that shares a consensus about the essential features of classrooms for understanding mathematics. By describing the essential features of classrooms that support students' mathematical understanding and by providing pictures of several classrooms that exhibit these…

  5. Changing Embedded Student Attitudes within a Mathematical Setting

    ERIC Educational Resources Information Center

    Collins, Ruth; Winnington, Darlene

    2010-01-01

    Many students see mathematics as a required, but unpleasant subject. They perceive mathematics as isolated, having no relationship to life, no relationship to future career needs, and no connections to other college courses. Student attitudes and beliefs in mathematics quite often block the knowledge that we as instructors want them to obtain.…

  6. Clonal interrogation of stem cells

    Microsoft Academic Search

    Kristin Hope; Mickie Bhatia

    2011-01-01

    Individual stem cells are functionally defined by their self-renewal and differentiation potential. Methods for clonal analysis are essential for understanding stem cells, particularly given the increasing evidence for stem-cell heterogeneity. Stem cells reside within complex microenvironments, making single-cell analysis particularly challenging. Furthermore, simultaneous molecular and functional characterization of single stem cells is not trivial. Here we explore clonal assays applied

  7. STEM Careers Middle School

    NSDL National Science Digital Library

    2009-11-09

    This brief video from WPSU introduces a diverse group of middle school students with interests in STEM careers. Whether creating robots or designing solar cars, each student dreams of activities beyond the stereotypical view of a nerdy scientist.

  8. Solving America's Mathematics Education Problem

    ERIC Educational Resources Information Center

    Vigdor, Jacob L.

    2012-01-01

    American students test poorly in mathematics compared to those in other developed--and in some cases, less developed--countries. While we have seen some signs of improved performance in recent years, these improvements are not yet evident among high school students. And the proportion of new college graduates who majored in math-intensive subjects

  9. K-12 Mathematics Curriculum Guide.

    ERIC Educational Resources Information Center

    Reading Community Schools, OH.

    GRADES OR AGES: K-12. SUBJECT MATTER: Mathematics. ORGANIZATION AND PHYSICAL APPEARANCE: The guide is divided into three sections, one each for elementary grades, middle grades, and high school. Each section is further subdivided by grade level. Sections are laid out in four columns across two pages. Column headings are concepts, teaching methods…

  10. Affective Productions of Mathematical Experience

    ERIC Educational Resources Information Center

    Walshaw, Margaret; Brown, Tony

    2012-01-01

    In underscoring the affective elements of mathematics experience, we work with contemporary readings of the work of Spinoza on the politics of affect, to understand what is included in the cognitive repertoire of the Subject. We draw on those resources to tell a pedagogical tale about the relation between cognition and affect in settings of…

  11. Stem Cell Niche

    Microsoft Academic Search

    Pei Wen; Pei Sun; Rongwen Xi

    \\u000a The adult stem cells are essential for maintaining tissue homeostasis and commonly reside in specific local microenvironment\\u000a named niche. The niche keeps stem cells in multipotent state, prevents them from precocious differentiation and positions\\u000a them to undergo asymmetric division to produce differentiated ­progenies for tissue regeneration. The niches employ a variety\\u000a of factors including cell adhesion molecules, extra cellular matrix,

  12. Hematopoietic Stem Cells

    Microsoft Academic Search

    Malcolm A. S. Moore

    \\u000a Hematopoietic stem cells (HSCs) are the most well-characterized tissue-specific stem cell. Over 50 years of basic research\\u000a and clinical application has provided insight into the molecular and cellular mechanisms of HSC biology. HSC undergo self-renewal\\u000a by symmetric or asymmetric division, or differentiation to common myeloid progenitors and progressively more differentiated\\u000a myeloid and lymphoid progeny. The chemokine SDF-1\\/ CXCL12 produced by

  13. Strategies And Initiatives That Revitalize Wesley College STEM Programs

    PubMed Central

    D'Souza, Malcolm J.; Kroen, William K.; Stephens, Charlene B.; Kashmar, Richard J.

    2015-01-01

    Church-related small private liberal arts baccalaureate minority-serving institutions like Wesley College have modest endowments, are heavily tuition-dependent, and have large numbers of financially-challenged students. In order to sustain the level of academic excellence and to continue to build student demographic diversity in its accessible robust Science and Mathematics (STEM) programs, the faculty sought federal and state funds to implement a coordinated program of curriculum enhancements and student support programs that will increase the number of students choosing STEM majors, increase their academic success, and improve retention. PMID:26185487

  14. Cellular aging leads to functional heterogeneity of hematopoietic stem cells: a modeling perspective.

    PubMed

    Glauche, Ingmar; Thielecke, Lars; Roeder, Ingo

    2011-06-01

    Hematopoietic stem cells (HSCs) are the source for the life-long supply of functional cells in peripheral blood while they simultaneously maintain their own reserve pool. However, there is accumulating evidence that HSCs are themselves subject to quantitative and qualitative exhaustion. Although several processes linked to mitotic activity can potentially account for the observed aging phenomena (e.g., DNA damage, telomere shortening, epigenetic modification), a precise understanding of HSC exhaustion is still missing. It is particularly unclear how individual aging processes on the single-cell level translate on the phenotypic level of the overall tissue and whether there is a functional implication of an age-structured HSC population. We address these issues by applying a novel mathematical model of HSC organization in which division-specific, cumulative alterations of stem cell quality determine the phenotypic and functional appearance of the overall cell population. Adapting the model to a number of basic experimental findings, we quantify the level of additional heterogeneity that is introduced by a population of individually aging cells. Based on this model, we are able to conclude that division-dependent processes of cellular aging explain a wide range of phenomena on HSC exhaustion and that HSC aging needs to be considered as a highly heterogeneous process. We furthermore report that functional heterogeneity between young and old HSCs appears closely similar to the phenomena described for long- and short-term repopulating cells. We speculate whether differential, division-coupled stem cell aging introduces an intra-animal variability that also accounts for heterogeneity with respect to the repopulation ability of HSCs. PMID:21385307

  15. [Cancer stem cells].

    PubMed

    Wieczorek, Katarzyna; Niewiarowska, Jolanta

    2012-01-01

    Cancer stem cell theory gains increasingly greater significance in the world of medicine. Numerous findings of scientific research in vivo and in vitro indicate that it is the population of undifferentiated, self-renewing cells which is responsible for recurrence of cancer and metastasis. Similarly to normal stem cells, cancer stem cells (CSC) function in the environment of the other cells of the organism, called the niche, where they receive signals for differentiation and proliferation processes. Disorders in the signaling pathways between CSC and the niche that result from e.g. acquired oncogenic mutations may lead to uncontrolled proliferation of stem cells, gaining independence from the primary niche or settling a new microenvironment. CSC are identified on the basis of specific markers - membrane proteins or cell enzymes. Methods based on the measurement of dye fluorescence (obtaining side population, SP) or fluorescence of the fluorophore conjugated with a monoclonal antibody directed against the specific CSC marker are used for isolation. A different method obtains morphologically miscellaneous clones by single cell cloning: holo-, mero- and paraclones. Tumor forming assay in NOD/SCID mice is a standard in vivo test that confirms the stem character of isolated cells. However, this model may not fully reflect the complexity of cancer illnesses in human beings. Solving the mystery of oncogenesis, including the existence of cancer stem cells, is undoubtedly one of the priorities of contemporary medicine that should contribute to the improvement of cancer therapy.  PMID:23001204

  16. An investigation into the mathematics achievement and attitude towards mathematics with respect to learning style according to gender

    Microsoft Academic Search

    N. Orhun

    2007-01-01

    This study aimed to investigate whether there is a relationship beween gender and learning style, mathematical achievement and attitude towards mathematics. The subjects of this study were 5th-semester students (42 females, 31 males) from the Mathematics Department at Anadolu University. The results of this study suggest that there were differences among learning modes preferred by female and male students, their

  17. Mathematical Imagery

    NSDL National Science Digital Library

    The American Mathematical Society has a section of its website devoted to the connection between mathematics and art, entitled Mathematical Imagery, which contains images of artworks from almost two dozen art exhibits. Visitors will find a quote on the right side of the homepage by G.H. Hardy that describes mathematicians and their relation to artists, as such: "A mathematician, like a painter or poet, is a maker of patterns. If his patterns are more permanent than theirs, it is because they are made with ideas." Visitors will likely be impressed by the works of art from the 2011 Mathematical Art Exhibition in New Orleans at the Joint Mathematics Meetings. The piece entitled "Gaussian Wave Packet Sculpture" looks like mid-century modern furniture design. Visitors won't want to miss the piece entitled "MacDuff's Shield" which combines Shakespeare's Macbeth with the Mandelbrot set. Finally, visitors interested in seeing a piece that looks like a deconstructed watermelon, will want to check out "Flora #1 (time slice).

  18. Recruitment of Students with Disabilities: Exploration of Science, Technology, Engineering, and Mathematics

    ERIC Educational Resources Information Center

    Martin, Jay K.; Stumbo, Norma J.; Martin, Liam G.; Collins, Kimberly D.; Hedrick, Bradley N.; Nordstrom, Dan; Peterson, Michelle

    2011-01-01

    Individuals with disabilities are underrepresented in postsecondary education; in science, technology, engineering, and mathematics (STEM) majors; in graduate and post-doctoral work; and in faculty positions, particularly in STEM. Despite these lags behind their non-disabled counterparts, few organizations recruit persons with disabilities into…

  19. Five Women in Science, Technology, Engineering, and Mathematics Majors: A Portraiture of Their Lived Experiences

    ERIC Educational Resources Information Center

    Torcivia, Patrice Prusko

    2012-01-01

    Numerous studies have addressed science, technology, engineering and mathematics (STEM) and their relation to education and gender ranging from elementary school pedagogy to career choices for traditional-aged college students. Little research has addressed nontraditional female students returning to the university to in the STEM fields. This…

  20. Exploration of the Lived Experiences of Undergraduate Science, Technology, Engineering, and Mathematics Minority Students

    ERIC Educational Resources Information Center

    Snead-McDaniel, Kimberly

    2010-01-01

    An expanding ethnicity gap exists in the number of students pursuing science, technology, engineering, and mathematics (STEM) careers in the United States. The National Action Council for Minorities in Engineering revealed that the number of minorities pursuing STEM degrees and careers has declined over the past few years. The specific origins of…

  1. Gendered Patterns in High Achievement in Mathematics for Grades 4, 6, and 8

    ERIC Educational Resources Information Center

    Falvey, Laura J.

    2012-01-01

    The issue of underrepresentation of women in science, technology, engineering, and mathematics (STEM) careers is especially important to the future of the United States in current times when STEM careers play an increasingly important role in the global economy (Toulmin & Groome, 2007; United States Department of Labor, 2007). The pool of…

  2. Reform in Undergraduate Science, Technology, Engineering, and Mathematics: The Classroom Context

    Microsoft Academic Search

    Frances K. Stage; Jillian Kinzie

    2009-01-01

    This article reports the results of a series of site visits examining modifications to science, technology, engineering, and mathematics (stem) teaching and learning based on reform on three differing campuses. Innovations in stem classrooms included collaborative approaches to learning; incorporation of active learning, authentic contexts, peer teaching; and interdisciplinary connections.

  3. Exploration of the lived experiences of undergraduate science, technology, engineering, and mathematics minority students

    Microsoft Academic Search

    Kimberly Snead-McDaniel

    2010-01-01

    An expanding ethnicity gap exists in the number of students pursuing science, technology, engineering, and mathematics (STEM) careers in the United States. The National Action Council for Minorities in Engineering revealed that the number of minorities pursuing STEM degrees and careers has declined over the past few years. The specific origins of this trend are not quite evident; one variable

  4. Leadership training in science, technology, engineering and mathematics education in Bulgaria

    Microsoft Academic Search

    Diana Bairaktarova; Monica F. Cox; Demetra Evangelou

    2011-01-01

    This synthesis paper explores current leadership training in science, technology, engineering and mathematics (STEM) education in Bulgaria. The analysis begins with discussion of global factors influencing the implementation of leadership training in STEM education in general and then presents information about the current status of leadership training in Bulgaria with emphases on the country's economics, politics and geographical location as

  5. Recasting Title IX: Addressing Gender Equity in the Science, Technology, Engineering, and Mathematics Professoriate

    Microsoft Academic Search

    Julie Walters; Connie L. McNeely

    2010-01-01

    Questions of gender equity and the underrepresentation of women in the science, technology, engineering, and mathematics (STEM) professoriate in U.S. institutions of higher education have become central issues in debates on the role and makeup of the STEM workforce in today's innovation-driven economy. In response, policy makers, advocacy groups, academics, and other stakeholders have called for the dedicated enforcement of

  6. General Information about Childhood Brain Stem Glioma

    MedlinePLUS

    ... Treatment Childhood Ependymoma Treatment Brain Cancer Research Childhood Brain Stem Glioma Treatment (PDQ®) General Information About Childhood Brain Stem Glioma Key Points Childhood brain stem glioma ...

  7. Stages of Childhood Brain Stem Glioma

    MedlinePLUS

    ... Treatment Childhood Ependymoma Treatment Brain Cancer Research Childhood Brain Stem Glioma Treatment (PDQ®) General Information About Childhood Brain Stem Glioma Key Points Childhood brain stem glioma ...

  8. Mathematical Software Digital Library of Mathematical Functions

    E-print Network

    Perkins, Richard A.

    65 Mathematical Software Digital Library of Mathematical Functions Daniel Lozier Qiming Wang (NIST to the dramatic rise of computational power. The first objective of the Digital Library of Mathematical Functions

  9. Victorian Certificate of Education: Mathematics, Science and Gender

    ERIC Educational Resources Information Center

    Cox, Peter J.; Leder, Gilah C.; Forgasz, Helen J.

    2004-01-01

    Gender differences in participation and performance at "high stakes" examinations have received much public attention, which has often focused on mathematics and science subjects. This paper describes the innovative forms of assessment introduced into mathematics and science subjects within the Victorian Certificate of Education (VCE) system.…

  10. Chemotherapy targeting cancer stem cells

    PubMed Central

    Liu, Haiguang; Lv, Lin; Yang, Kai

    2015-01-01

    Conventional chemotherapy is the main treatment for cancer and benefits patients in the form of decreased relapse and metastasis and longer overall survival. However, as the target therapy drugs and delivery systems are not wholly precise, it also results in quite a few side effects, and is less efficient in many cancers due to the spared cancer stem cells, which are considered the reason for chemotherapy resistance, relapse, and metastasis. Conventional chemotherapy limitations and the cancer stem cell hypothesis inspired our search for a novel chemotherapy targeting cancer stem cells. In this review, we summarize cancer stem cell enrichment methods, the search for new efficient drugs, and the delivery of drugs targeting cancer stem cells. We also discuss cancer stem cell hierarchy complexity and the corresponding combination therapy for both cancer stem and non-stem cells. Learning from cancer stem cells may reveal novel strategies for chemotherapy in the future. PMID:26045975

  11. Valve stem and packing assembly

    DOEpatents

    Wordin, J.J.

    1991-09-03

    A valve stem and packing assembly is provided in which a rotatable valve stem includes a first tractrix surface for sliding contact with a stem packing and also includes a second tractrix surface for sliding contact with a bonnet. Force is applied by means of a spring, gland flange, and gland on the stem packing so the stem packing seals to the valve stem and bonnet. This configuration serves to create and maintain a reliable seal between the stem packing and the valve stem. The bonnet includes a second complementary tractrix surface for contacting the second sliding tractrix surface, the combination serving as a journal bearing for the entire valve stem and packing assembly. The journal bearing so configured is known as a Schiele's pivot. The Schiele's pivot also serves to maintain proper alignment of the valve stem with respect to the bonnet. Vertical wear between the surfaces of the Schiele's pivot is uniform at all points of contact between the second sliding tractrix surface and the second complementary tractrix surface of a bonnet. The valve stem is connected to a valve plug by means of a slip joint. The valve is opened and closed by rotating the valve stem. The slip joint compensates for wear on the Schiele's pivot and on the valve plug. A ledge is provided on the valve bonnet for the retaining nut to bear against. The ledge prevents over tightening of the retaining nut and the resulting excessive friction between stem and stem packing. 2 figures.

  12. Valve stem and packing assembly

    DOEpatents

    Wordin, John J. (Bingham County, ID)

    1991-01-01

    A valve stem and packing assembly is provided in which a rotatable valve stem includes a first tractrix surface for sliding contact with a stem packing and also includes a second tractrix surface for sliding contact with a bonnet. Force is applied by means of a spring, gland flange, and gland on the stem packing so the stem packing seals to the valve stem and bonnet. This configuration serves to create and maintain a reliable seal between the stem packing and the valve stem. The bonnet includes a second complementary tractrix surface for contacting the second sliding tractrix surface, the combination serving as a journal bearing for the entire valve stem and packing assembly. The journal bearing so configured is known as a Schiele's pivot. The Schiele's pivot also serves to maintain proper alignment of the valve stem with respect to the bonnet. Vertical wear between the surfaces of the Schiele's pivot is uniform at all points of contact between the second sliding tractrix surface and the second complementary tractrix surface of a bonnet. The valve stem is connected to a valve plug by means of a slip joint. The valve is opened and closed by rotating the valve stem. The slip joint compensates for wear on the Schiele's pivot and on the valve plug. A ledge is provided on the valve bonnet for the retaining nut to bear against. The ledge prevents overtightening of the retaining nut and the resulting excessive friction between stem and stem packing.

  13. Classroom Assessment Techniques: Mathematical Thinking

    NSDL National Science Digital Library

    Malcolm Swan

    This page describes five ways to assess mathematical thinking skills. The assessment tool is one of a series of Classroom Assessment Techniques (CATs) provided by the Field-tested Learning Assessment Guide (FLAG) website. The CATs of FLAG were constructed as a resource for science, technology, engineering and mathematics (STEM) instructors to emphasize deeper levels of learning and to give instructors valuable feedback during a course. The Mathematical Thinking Classroom Assessment Techniques (Math CATs) are designed to promote and assess thinking skills in mathematics by checking results and correcting mistakes, making plausible estimates of quantities which are not known, modeling and defining new concepts, judging statements and creating proofs, and organizing unsorted data and drawing conclusions. An overview of this assessment instrument includes information about why Math CATs are beneficial to use and how to use them. This site is also linked to a set of discipline-specific "tools" that can be downloaded for immediate use, as well as supplementary links and sources to further explore this assessment tool.

  14. Knowledge concerning the mathematical horizon: a close view

    NASA Astrophysics Data System (ADS)

    Guberman, Raisa; Gorev, Dvora

    2015-06-01

    The main objective of this study is to identify components of teachers' mathematical knowledge for teaching, associated with the knowledge of mathematical horizon (KMH) in order to describe this type of knowledge from the viewpoint of elementary school mathematics teachers. The research population of this study consisted of 118 elementary school mathematics teachers who responded to an open-ended questionnaire. Findings of this study illustrate that KMH can be considered as a separate category according to teachers' voice. An analysis of teachers' utterances resulted in three KMH characteristics: insight of subject matter, mathematical connections, and understanding of meta-mathematics.

  15. Philosophy, mathematics and education

    Microsoft Academic Search

    Paul Ernest

    1989-01-01

    The central concern of the philosophy of mathematics is to give an account of the nature of mathematics. Views of the nature of mathematics are particularly important in the teaching of mathematics, where they can strongly influence the mathematics curriculum as taught to pupils. However, the distinction must be drawn between stated beliefs as to the nature of mathematics and

  16. Dilemma in Teaching Mathematics

    ERIC Educational Resources Information Center

    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…

  17. Outdoor Mathematics

    ERIC Educational Resources Information Center

    Kennard, Jackie

    2007-01-01

    One of the most interesting developments in teaching has been the growing importance of the outdoor environment. Whether it be playground, garden or field, the outdoors offers a range of challenging experiences, especially in the delivery of early mathematics. Oral feedback to parents, together with photographic displays, can show them that…

  18. Relevant Mathematics.

    ERIC Educational Resources Information Center

    Catterton, Gene; And Others

    This material was developed to be used with the non college-bound student in the senior high school. It provides the student with everyday problems and experiences in which practical mathematical applications are made. The package includes worksheets pertaining to letterhead invoices, sales slips, payroll sheets, inventory sheets, carpentry and…

  19. Airplane Mathematics

    NSDL National Science Digital Library

    Bryant, Joyce

    A unit designed to teach the history of aerodynamics, to develop some fundamental mathematical skills relating to the field of aviation, and to study the history of flight, including the first transatlantic flight, the Wright Brothers, and supersonic flight (old and new). Math criteria include the computation, concepts, and problem solving of velocity; acceleration, speed, distance traveled, and time. Includes 20 word problems.

  20. ~" NUMERICAL MATHEMATICS

    E-print Network

    Dongarra, Jack

    are those of Poiseuille flow, Couette flow, pressure gradient driven circular pipe flow, and Couette. /Applied Numerical Mathematics 22 (1996) 399-434 low pressure regions from which variable weather patterns entrainment, such as EHD clutch de- velopment, or EHD high voltage generators. Yet other important mundane