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1

Integrative Approaches among Science, Technology, Engineering, and Mathematics (STEM) Subjects on Students' Learning: A Meta-Analysis  

ERIC Educational Resources Information Center

Within the literature there has been a call for the integration of science, technology, engineering, and mathematics (STEM) disciplines. Little research has been conducted to investigate the effects of integrative approaches among STEM subjects. The purpose of this study was to synthesize findings from existing research on the effects of…

Becker, Kurt Henry; Park, Kyungsuk

2011-01-01

2

2000 Mathematics Subject Classification  

NSDL National Science Digital Library

The proposed revision of the 1991 edition of the Mathematics Subject Classification, MSC2000, was officially announced at the upcoming International Congress of Mathematicians in Berlin (August 24, 1998). MSC2000 is a collaborative effort between the editors of Mathematical Review and Zentralblatt fur Mathematik, two journals that review mathematics literature. Mathematical Reviews is a publication of the American Mathematical Society (AMS) (discussed in the July 14, 1995 issue of the Scout Report). The 1991 edition of the MSC (linked to from the MSC2000 site) contains "over 5,000 two-, three-, and five-digit classifications, each corresponding to a discipline of mathematics." The MSC2000 classification scheme is browseable; the 1991 edition has both browse and search functionality. Application of the new classification scheme will begin in the year 2000.

3

Mathematics Subject Classification 2000 Mathematics Subject Classification 2000 (MSC2000)  

E-print Network

. The areas covered by Sections 90 and 92 have been reorganized into Sections 90, 91 and 92. Sections 90B contributions in different areas, the primary classification should cover the "most important" among themMathematics Subject Classification 2000 Mathematics Subject Classification 2000 (MSC2000

4

STEM: Science Technology Engineering Mathematics  

ERIC Educational Resources Information Center

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…

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

2011-01-01

5

iSTEM: Learning Mathematics through Minecraft  

ERIC Educational Resources Information Center

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.

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

2014-01-01

6

STEM: Science Technology Engineering Mathematics. Executive Summary  

ERIC Educational Resources Information Center

Science, Technology, Engineering, and Mathematics (STEM) occupations are critical to the nation's continued economic competitiveness because of their direct ties to innovation, economic growth, and productivity, even though they will only be 5 percent of all jobs in the U.S. economy by 2018. The disproportionate influence of STEM raises a…

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

2011-01-01

7

The Future for Mathematics Subject Associations  

ERIC Educational Resources Information Center

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…

Pope, Sue

2012-01-01

8

STEM, STEM Education, STEMmania  

ERIC Educational Resources Information Center

In this article, the author introduces integrative STEM (science, technology, engineering, and/or mathematics) education and discusses the importance of the program. The notion of integrative STEM education includes approaches that explore teaching and learning between/among any two or more of the STEM subject areas, and/or between a STEM subject

Sanders, Mark

2009-01-01

9

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

ERIC Educational Resources Information Center

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…

Barakos, Lynn; Lujan, Vanessa; Strang, Craig

2012-01-01

10

Mathematical Models of Cancer Stem Cells Franziska Michor  

E-print Network

approach to cancer, and much subsequent work was produ- ced.20-25 In recent years, cancer stem cells haveMathematical Models of Cancer Stem Cells Franziska Michor From the Computational Biology Center are thought to be sustained in their growth by a pathologic counterpart of normal adult stem cells: cancer

11

STEM: Science Technology Engineering Mathematics. State-Level Analysis  

ERIC Educational Resources Information Center

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…

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

2011-01-01

12

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

ERIC Educational Resources Information Center

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…

Chesky, Nataly Z.

2013-01-01

13

Supporting Mathematics in Other Subject Areas  

ERIC Educational Resources Information Center

It is important for students to have opportunities to experience mathematics in contexts outside of the mathematics classroom. The links between mathematics and other disciplines can help students develop a fuller understanding of mathematics. Problems arising in health, science, and social studies can help students understand ratios, measurement,…

Stump, Sheryl; Clark, Susan E.; Mitchell, Melissa; Roebuck, Kay

2008-01-01

14

Change the World through STEM Science. Technology. Engineering. Mathematics.  

E-print Network

Women@NASA Change the World through STEM Science. Technology. Engineering. Mathematics. Women to be a concert pianist. Her interest in flying stemmed from the 1919 England to Australia flight by Ross commercial pilot's license while in college. In 1935, she was one of three women hired by the Bureau of Air

Waliser, Duane E.

15

Change the World through STEM Science. Technology. Engineering. Mathematics.  

E-print Network

Women@NASA Change the World through STEM Science. Technology. Engineering. Mathematics. Women to inspire young girls to enter STEM fields. Honoring those who paved the way so we could be part of the mission... Of the six women in this first class with female astronauts, Dr. Shannon Lucid was the only one

Waliser, Duane E.

16

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

ERIC Educational Resources Information Center

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…

Watkins, Jessica; Mazur, Eric

2013-01-01

17

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

E-print Network

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

Suzuki, Masatsugu

18

Pharmacy Students’ Perceptions of Natural Science and Mathematics Subjects  

PubMed Central

Objective. To determine the level of importance pharmacy students placed on science and mathematics subjects for pursuing a career in pharmacy. Method. Two hundred fifty-four students completed a survey instrument developed to investigate students’ perceptions of the relevance of science and mathematics subjects to a career in pharmacy. Pharmacy students in all 4 years of a master of pharmacy (MPharm) degree program were invited to complete the survey instrument. Results. Students viewed chemistry-based and biology-based subjects as relevant to a pharmacy career, whereas mathematics subjects such as physics, logarithms, statistics, and algebra were not viewed important to a career in pharmacy. Conclusion. Students’ experience in pharmacy and year of study influenced their perceptions of subjects relevant to a pharmacy career. Pharmacy educators need to consider how they can help students recognize the importance of scientific knowledge earlier in the pharmacy curriculum. PMID:25147390

Wilson, Sarah Ellen; Wan, Kai-Wai

2014-01-01

19

Expertise in Mathematics Instruction: Subject Matter Knowledge.  

ERIC Educational Resources Information Center

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)

Leinhardt, Gaea; Smith, Donald A.

1985-01-01

20

The use of fuzzy mathematics in subjective uncertainty analysis  

SciTech Connect

We have been investigating the applicability of fuzzy mathematics in safety assessments (PSAs). It is a very efficient approach, both in terms of methodology development time and program execution time. Most importantly, it processes subjective information subjectively, not as if it were based on measured data. One of the most useful results of this work is that we have shown the potential for significant differences (especially in perceived margin relative to a decision threshold) between fuzzy mathematics analysis and conventional PSA analysis. This difference is due to subtle factors inherent in the choice of probability distributions for modeling uncertainty. Since subjective uncertainty, stochastic variability, and dependence are all parts of most practical situations, a technique has been developed for combining the three effects. The methodology is based on hybrid numbers and on Frechet inequality dependency bounds analysis. Some new results have also been obtained in the areas of efficient disjoint set representations and constrained uncertainty and variability analysis.

Cooper, J.A.

1996-06-01

21

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

E-print Network

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

Suzuki, Masatsugu

22

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

23

How to Motivate US Students to Pursue STEM (Science, Technology, Engineering and Mathematics) Careers  

ERIC Educational Resources Information Center

STEM (science, technology, engineering and mathematics) has been a powerful engine of prosperity in the US since World War II. Currently, American students' performances and enthusiasm in STEM education are inadequate for the US to maintain its leadership in STEM professions unless the government takes more actions to motivate a new generation of…

Hossain, Md. Mokter; G. Robinson, Michael

2012-01-01

24

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

ERIC Educational Resources Information Center

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…

Hackler, Amanda Smith

2011-01-01

25

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

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…

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

2010-01-01

26

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

ERIC Educational Resources Information Center

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…

Stevenson, Heidi J.

2014-01-01

27

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

ERIC Educational Resources Information Center

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:…

Roth, Wolff-Michael

2012-01-01

28

Using Space as a Context to Enrich the Teaching and Learning of STEM Subjects  

ERIC Educational Resources Information Center

This article looks at how space can provide a context for the teaching of STEM subjects. It explores how space fits with the new curriculum, and outlines what resources are available for teachers from the National STEM Centre eLibrary. In November 2015, the UK sends its first official astronaut into space, Tim Peake. His mission can provide a…

Clements, Allan; Curtis, Jeremy; Jackson, Libby; Lyons, Tom

2014-01-01

29

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...

30

London Mathematical Society Advancing Mathematics  

E-print Network

and schools ­ in particular on HE in STEM subjects; on A-level reform; and on a Vision for Science and Mathematics Education 5­19. As a constituent body of the Council for the Mathematical Sciences (CMS the mathematical community in the UK is sustained, and the implications of requiring `open access' to all research

Mottram, Nigel

31

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

E-print Network

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...

Han, Sun Young

2013-05-20

32

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

E-print Network

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

Maxwell, Bruce D.

33

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

ERIC Educational Resources Information Center

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…

National Academies Press, 2011

2011-01-01

34

Motivating Children to Develop Their Science, Technology, Engineering, and Mathematics (STEM) Talent  

ERIC Educational Resources Information Center

Motivation in mathematics and science appears to be more important to STEM occupational choice than ability. Using the expectancy value model, parents may be able to recognize potential barriers to children's selection of a STEM occupation and take actions to help facilitate talent development. These are especially important for parents of…

Andersen, Lori

2013-01-01

35

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

36

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

ERIC Educational Resources Information Center

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…

Ing, Marsha

2014-01-01

37

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

ERIC Educational Resources Information Center

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)…

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

2014-01-01

38

The Science, Technology, Engineering and Mathematics (STEM) Education Institute  

NSDL National Science Digital Library

This is an up-to-date clearinghouse of K-12 STEM materials and calendars of STEM events for students and teachers in the western Massachusetts region. Teachers can find information on institutes and workshops, and materials and resources for STEM activities. There are photo and presentation galleries and a newsletter. For students there is information on academies and scholarships.

2012-01-01

39

STEM Development: A Study of 6th-12th Grade Girls' Interest and Confidence in Mathematics and Science.  

E-print Network

??Researchers, policymakers, business, and industry have indicated that the United States will experience a shortage of professionals in the Science, Technology, Engineering, and Mathematics (STEM)… (more)

Heaverlo, Carol

2011-01-01

40

The Constructed Objectivity of Mathematics and the Cognitive Subject 1  

E-print Network

. Mathematical logic gave us an essential analysis of (logic/syntactic) proof­principles, and more it is giving tools", as mathematics is one of the many practical and conceptual instruments by which we categorize process, which begins with our biological evolution: the analysis of "intuition", not as a "magic

Longo, Giuseppe

41

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

NSDL National Science Digital Library

Science, mathematics, engineering, and technology (STEM) are fundamental aspects of everyone's lives as citizens, consumers, parents, and workers. Providing all students with access to high-quality education in STEM is important to their futures and that of the U.S. What can schools do to meet this goal for their students? Successful K-12 STEM Education tackles this question, focusing on the science and mathematics parts of STEM and on criteria for identifying effective STEM schools and practices. The report gives an overview of the landscape of K-12 STEM education by considering different school models, highlighting research on effective STEM education practices, and identifying some conditions that promote and limit school- and student-level success in STEM. It can serve as a guide for those involved in K-12 education at all levels: policy makers; decision makers at the school and district levels; local, state, and federal government agencies; curriculum developers; educators; and parent and education advocacy groups. Free download of this publication is available to registered users of National Academies Press.

Committee on Highly Successful Schools or Programs in K-12 STEM Education; Council, National R.

2011-09-19

42

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

E-print Network

as positive. 2. It is difficult to predict what impact the Government's higher education reforms will have. Actions are required at all the stages of the education pipeline covered by this inquiry. 4. The UK STEMWellcome Trust SUBMISSION OF EVIDENCE Wellcome Trust response to Higher Education in STEM Subjects

Rambaut, Andrew

43

iSTEM: Promoting Fifth Graders' Mathematical Modeling  

ERIC Educational Resources Information Center

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…

Yanik, H. Bahadir; Karabas, Celil

2014-01-01

44

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

ERIC Educational Resources Information Center

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…

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

2012-01-01

45

Mathematics for Teaching and Deep Subject Knowledge: Voices of Mathematics Enhancement Course Students in England  

ERIC Educational Resources Information Center

This article reports an investigation into how students of a mathematics course for prospective secondary mathematics teachers in England talk about the notion of "understanding mathematics in depth", which was an explicit goal of the course. We interviewed eighteen students of the course. Through our social practice frame and in the…

Adler, Jill; Hossain, Sarmin; Stevenson, Mary; Clarke, John; Archer, Rosa; Grantham, Barry

2014-01-01

46

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

ERIC Educational Resources Information Center

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…

Hottinger, Sara

2010-01-01

47

[Mathematical simulation of stem/cement/bone mechanical interactions for Poldi-Cech, CF-30, MS-30 and PFC femoral components].  

PubMed

PURPOSE OF THE STUDY The mid-term longevity of femoral components varies considerably, with some showing failure due to early aseptic loosening. Since the hip joint is subject to heavy mechanical loads, it can be assumed that the mechanical interaction of the implant, bone cement and femur will play a key role in the resultant reliability of an arthroplasty. This study was designed to examine this mechanical interaction in four femoral components different in construction (Poldi-Cech, CF-30, MS-30 and PFC) using mathematical simulation. MATERIAL AND METHODS Four stem/cement/femur 3-D mathematical models, comparable in quality, infolving the Poldi-Cech, CF-30, MS-30 and PFC stems, respectively, were constructed. A 3-D model for each stem was created according to its real, middle-size femoral component. Each 3-D model of the cement mantle corresponded in shape to the mantle of the appropriate real stem, with its thickness based on the recommended values of 4-7 mm in the proximal and 1-3 mm in the distal part, and with the cement mantle reaching as far as 10 mm distal to the femoral stem tip. For simplicitys sake the outer surface of the cement mantle was simulated as smooth. A 3-D model involving the proximal epiphysis and the metaphysis of a femur was reconstructed, based on a series of CT cross-sections obtained periodically at 10.5-mm and 2.5-mm distances. The sten/cement/femur model with the MS-30 stem also included a centraliser. The mechanical interaction of the stem, bone cement and bone tissue was examined by means of mathematical stimulation using ANSYS 5.7 software based on finite element analysis. RESULTS For the sake of simplicity, only two key parameters are presented, namely, contact stress at the stem-cement interface and equivalent deformation in the stem/cement/femur system. The least satisfactory stress loading was in the CF-30 stem whose sharp edges showed the values of contact stress about six-times higher than on the mid-medial portion of the stem, with the sharp edges behaving as stress concentrators. A satisfactory stress loading was found in Poldi-Cech, MS-30 and PFC stems, in which contact stress was evenly distributed along the whole lenght of the stem and the values at the edges and on the midmedial portion did not differ much. DISCUSSION The distribution of contact stress is one of the most important factors for the long-term longevity of implants. It was found least satisfactory in the CF-30 stem whose sharp edges act as stress condenser adversely affecting not only the stemcement interface, but also the resultant stress distribution within the femur. The most satisfactory results of stress distribution were recorded in the Poldi-Cech and MS-30 stems. The PFC stem also responded satisfactorily to the simulated stress loading. However, on loading whose substantial part would be torsion, the stems circular or oval cross-section could interfere with rotation stability of the implant; but this was impossible to detect by the mathematical simulation used in this study. CONCLUSIONS The results presented here show that, in the Poldi-Cech, CF-30, MS-30 and PFC femoral stems, a good agreement was achieved between the results of their clinical application and those of mathematical modelling of their mechanical properties. It can be concluded that mechanical interaction among the femoral stem, cement mantle and bone tissue plays the key role in the long-term longevity of such an implant. Key words: Poldi-Cech, CF-30, MS-30, PFC, mechanical interaction, contact stress. PMID:19439130

Kovanda, M; Havlícek, V; Hudec, J

2009-04-01

48

Celebrating the Reality of Inclusive STEM Education: Co-Teaching in Science and Mathematics  

ERIC Educational Resources Information Center

This article focuses on science, technology, engineering, and mathematics (STEM) education in secondary inclusive classrooms. Co-teaching is increasingly used in inclusive practice by administrators to provide effective instruction in inclusive classrooms. The practical and successful instructional strategies in the article focus on one…

Moorehead, Tanya; Grillo, Kelly

2013-01-01

49

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

ERIC Educational Resources Information Center

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…

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

2014-01-01

50

Mathematically precocious and female: Self-efficacy and STEM course choices among high achieving middle grade students  

NASA Astrophysics Data System (ADS)

The problem addressed in this project is the lack of mathematically gifted females choosing to pursue advanced science, technology, engineering, and mathematics (STEM) courses in secondary education due to deficiencies in self-efficacy. The purpose of this project was to study the effects of a child-guided robotics program as it relates to the self-efficacy of mathematically gifted 6th grade female students and their future course choices in the advanced STEM content areas. This mixed-model study utilized a STEM attitude survey, artifacts, interviews, field notes, and standardized tests as measurement tools. Significance was found between genders in the treatment group for the standardized science scores, indicating closure in the achievement gap. Research suggests that STEM enrichment is beneficial for mathematically gifted females.

Burt, Stacey M.

51

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

Microsoft Academic Search

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

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

2010-01-01

52

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

E-print Network

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.

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

2009-01-01

53

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

PubMed Central

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

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

2012-01-01

54

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

ERIC Educational Resources Information Center

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…

Roth, Wolff-Michael; Van Eijck, Michiel

2010-01-01

55

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

ERIC Educational Resources Information Center

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…

Scott, Catherine

2012-01-01

56

Students Who Study Science, Technology, Engineering, and Mathematics (STEM) in Postsecondary Education. Stats in Brief. NCES 2009-161  

ERIC Educational Resources Information Center

Rising concern about America's ability to maintain its competitive position in the global economy has renewed interest in science, technology, engineering and mathematics (STEM) education. To understand who enters into and completes undergraduate programs in STEM fields, this report examined data from three major national studies: the 1995-96…

Chen, Xianglei

2009-01-01

57

STEM Development: A Study of 6th-12th Grade Girls' Interest and Confidence in Mathematics and Science  

Microsoft Academic Search

Researchers, policymakers, business, and industry have indicated that the United States will experience a shortage of professionals in the Science, Technology, Engineering, and Mathematics (STEM) fields. Several strategies have been suggested to address this shortage, one of which includes increasing the representation of girls and women in the STEM fields. In order to increase the representation of women in the

Carol Heaverlo

2011-01-01

58

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

ERIC Educational Resources Information Center

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

National Academies Press, 2012

2012-01-01

59

P-12 STEM EducationScience Technology Engineering Mathematics CENTER FOR LEARNING AND TEACHING IN NANOSCALE SCIENCE AND ENGINEERING  

E-print Network

P-12 STEM EducationScience Technology Engineering Mathematics CENTER FOR LEARNING AND TEACHING to develop learning modules, implement them in their classrooms, and assess student learning outcomes. www.generation-nano, Technology, Engineering, and Mathematics) to serve as "visiting scientist" in a program designed to instill

60

A Norwegian Out-of-School Mathematics Project's Influence on Secondary Students' STEM Motivation  

ERIC Educational Resources Information Center

Considerable resources are spent on initiatives aiming to increase achievement and participation in science, technology, engineering, and mathematics (STEM). Drawing on focus group interviews and a questionnaire study with participants in ENT3R, a Norwegian out-of-school mathematics program, we investigated why participants attended and stayed in…

Jensen, Fredrik; Sjaastad, Jřrgen

2013-01-01

61

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

ERIC Educational Resources Information Center

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…

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

2007-01-01

62

Acute cardiovascular response to high altitude in healthy and anemic subjects: a mathematical model  

Microsoft Academic Search

The acute cardiovascular response to hypocapnic hypoxia (simulating high altitude condition) is investigated both in healthy and anemic subjects by using a mathematical model of short-term cardiovascular regulation. The model includes a description of the cardiovascular system and several control mechanisms triggered by changes in blood gas content. Hypoxia produces significant rise in cardiac output and heart rate, while arterial

E. Magosso; M. Ursino

2003-01-01

63

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

ERIC Educational Resources Information Center

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…

Kouritzin, Sandra G.

2012-01-01

64

Radial limits of quasiregular local homeomorphisms Mathematics Subject Classification (2000): 30C65.  

E-print Network

Radial limits of quasiregular local homeomorphisms Kai Rajala Mathematics Subject Classification local homeomorphisms. In fact, no boundedness or growth assumptions are needed here. Theorem 1.1. Let f), so that the radial limit lim t1 f(tx) = bx Rn exists. Theorem 1.1 is a special case of a more

Jyväskylä, University of

65

Subject-Matter Experts in Urban Schools: Journeys of Enacted Identities in Science and Mathematics Classrooms  

ERIC Educational Resources Information Center

This study explored how two mathematics/science subject-matter experts (Fellows) conceptualized urban classrooms and the students they worked with for a year, how they negotiated academic achievement with cultural and sociopolitical competence, and how their identities as educators were co-constructed and enacted. Using grounded theory, Fellows'…

Ye, Li; Varelas, Maria; Guajardo, Raphael

2011-01-01

66

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

NASA Astrophysics Data System (ADS)

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 there is a variety of STEM high school programs designed to increase students' ability to pursue college degrees in STEM fields. The school mission statements influence the overall school design. Students at STEM schools must submit an application to be admitted to STEM high schools. Half of the STEM high schools used a lottery system to select students. STEM high schools have a higher population of black students and a lower population of white and Hispanic students than most schools in the United States. They serve about the same number of economically disadvantaged students. The academic programs at STEM high schools are more rigorous with electives focused on STEM content. In addition to coursework requirements, students must also complete internships and/or a capstone project. Teachers who teach in STEM schools are provided regularly scheduled professional development activities that focus on STEM content and pedagogy. Teachers provide leadership in the development and delivery of the professional development activities.

Scott, Catherine Elizabeth

67

STEM development: A study of 6th--12th grade girls' interest and confidence in mathematics and science  

NASA Astrophysics Data System (ADS)

Researchers, policymakers, business, and industry have indicated that the United States will experience a shortage of professionals in the Science, Technology, Engineering, and Mathematics (STEM) fields. Several strategies have been suggested to address this shortage, one of which includes increasing the representation of girls and women in the STEM fields. In order to increase the representation of women in the STEM fields, it is important to understand the developmental factors that impact girls' interest and confidence in STEM academics and extracurricular programs. Research indicates that greater confidence leads to greater interest and vice versa (Denissen et al., 2007). This study identifies factors that impact girls' interest and confidence in mathematics and science, defined as girls' STEM development. Using Bronfenbrenner's (2005) bioecological model of human development, several factors were hypothesized as having an impact on girls' STEM development; specifically, the macrosystems of region of residence and race/ethnicity, and the microsystems of extracurricular STEM activities, family STEM influence, and math/science teacher influence. Hierarchical regression analysis results indicated that extracurricular STEM involvement and math teacher influence were statistically significant predictors for 6--12th grade girls' interest and confidence in mathematics. Furthermore, hierarchical regression analysis results indicated that the only significant predictor for 6--12th grade girls' interest and confidence in science was science teacher influence. This study provides new knowledge about the factors that impact girls' STEM development. Results can be used to inform and guide educators, administrators, and policy makers in developing programs and policy that support and encourage the STEM development of 6--12th grade girls.

Heaverlo, Carol Ann

68

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

PubMed Central

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

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

2014-01-01

69

A Q-Methodological Study of Women's Subjective Perspectives on Mathematics  

Microsoft Academic Search

The objective of this study was to explore, using Q-methodology, women's subjective reactions to and experiences with mathematics. Ninety-six undergraduate women from a private university conducted Q-sorts on items that related to their personal experiences, attitudes, and belief\\/awareness of gender stereotypes for math. On the basis of the Q-factor analysis, three unique perspectives toward math emerged. The perspectives were classified

Debra L. Oswald; Richard D. Harvey

2003-01-01

70

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

Microsoft Academic Search

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

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

71

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

Microsoft Academic Search

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

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

2012-01-01

72

The ADVANCE program at the University of Rhode Island centers on 5 major goals related to the advancement of women in science, technology, engineering, and mathematics (STEM)  

E-print Network

to the advancement of women in science, technology, engineering, and mathematics (STEM): 1. Evaluation: To develop and share a comprehensive understanding of the status of women STEM faculty 2. Recruitment: To increase the number of ranked women STEM faculty 3. Faculty Development and Support: To advance the careers of all

Rhode Island, University of

73

AccessSTEM: Building Capacity to Include Students with Disabilities in Science, Technology, Engineering, and Mathematics Fields  

ERIC Educational Resources Information Center

A series of activities were undertaken to understand the underrepresentation and increase the participation of people with disabilities in science, technology, engineering, and mathematics (STEM) careers. These activities were funded by the Research in Disabilities Education (RDE) program of the National Science Foundation (NSF). They were…

DO-IT, 2007

2007-01-01

74

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

Microsoft Academic Search

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

Lynn D. Dierking

2010-01-01

75

STEM Development: A Study of 6th-12th Grade Girls' Interest and Confidence in Mathematics and Science  

ERIC Educational Resources Information Center

Researchers, policymakers, business, and industry have indicated that the United States will experience a shortage of professionals in the Science, Technology, Engineering, and Mathematics (STEM) fields. Several strategies have been suggested to address this shortage, one of which includes increasing the representation of girls and women in the…

Heaverlo, Carol Ann

2011-01-01

76

An Innovative Educational Approach for Science, Technology, Engineering, and Mathematics (STEM)  

NASA Astrophysics Data System (ADS)

The National Oceanic and Atmospheric Administration (NOAA) Educational Partnership Program (EPP) educational approach is effective in increasing the number of underrepresented students in NOAA mission related sciences. Initiated in 2001, the EPP educational approach has resulted in increased numbers of trained and graduated students. As result of the EPP educational approach, a student pipeline has developed from high to graduate school. The approach suggests the need for STEM-related programs that target students at the K-12, higher education, and post-doctorate levels and include a combination of applied research, experiential learning, and curriculum development. The data is a result of tracking EPP science, technology, engineering, and mathematics students for five years.

Laster, M. E.; Rousseau, J. J.; Mapp, D. C.

2006-05-01

77

Multi-finger coordination in healthy subjects and stroke patients: a mathematical modelling approach  

PubMed Central

Background Approximately 60% of stroke survivors experience hand dysfunction limiting execution of daily activities. Several methods have been proposed to objectively quantify fingers' joints range of motion (ROM), while few studies exist about multi-finger coordination during hand movements. The present work analysed this aspect, by providing a complete characterization of spatial and temporal aspects of hand movement, through the mathematical modelling of multi-joint finger motion in healthy subjects and stroke patients. Methods Hand opening and closing movements were examined in 12 healthy volunteers and 14 hemiplegic stroke survivors by means of optoelectronic kinematic analysis. The flexion/extension angles of metacarpophalangeal (MCPJ) and proximal interphalangeal joints (IPJ) of all fingers were computed and mathematically characterized by a four-parameter hyperbolic tangent function. Accuracy of the selected model was analysed by means of coefficient of determination (R2) and root mean square error (RMSE). Test-retest reliability was quantified by intraclass correlation coefficient (ICC) and test-retest errors. Comparison between performances of healthy controls and stroke subjects were performed by analysing possible differences in parameters describing angular and temporal aspects of hand kinematics and inter-joint, inter-digit coordination. Results The angular profiles of hand opening and closing were accurately characterized by the selected model, both in healthy controls and in stroke subjects (R2 > 0.973, RMSE < 2.0°). Test-retest reliability was found to be excellent, with ICC > 0.75 and remarking errors comparable to those obtained with other methods. Comparison with healthy controls revealed that hemiparetic hand movement was impaired not only in joints ROM but also in the temporal aspects of motion: peak velocities were significantly decreased, inter-digit coordination was reduced of more than 50% and inter-joint coordination patterns were highly disrupted. In particular, the stereotypical proximal-to-distal opening sequence (reversed during hand closing) found in healthy subjects, was altered in stroke subjects who showed abnormally high delay between IPJ and MCPJ movement or reversed moving sequences. Conclusions The proposed method has proven to be a promising tool for a complete objective characterization of spatial and temporal aspects of hand movement in stroke, providing further information for a more targeted planning of the rehabilitation treatment to each specific patient and for a quantitative assessment of therapy's outcome. PMID:21507238

2011-01-01

78

STEM crisis or STEM surplus?  

E-print Network

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 ...

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

2014-01-01

79

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

E-print Network

statistics in areas as diverse as forensics and agriculture. Operational Research uses mathematical ideas by insurance companies. Why study Mathematics at Edinburgh? As a mathematics student at Edinburgh you derivatives. Proof underpins pure mathematics and you will take a course which will help you develop suitable

Schnaufer, Achim

80

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

PubMed

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

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

81

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

ERIC Educational Resources Information Center

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…

Le, Tam; Gardner, Susan K.

2010-01-01

82

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

Microsoft Academic Search

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

Brant Gregory Miller

2010-01-01

83

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

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…

Soleimani, Ali

2013-01-01

84

Mathematical modeling of growth and death dynamics of mouse embryonic stem cells irradiated with ?-rays.  

PubMed

Following ionizing radiation, mouse embryonic stem cells (mESCs) undergo both apoptosis and block at G2/M phase of the cell cycle. The dynamics of cell growth and the transition through the apoptotic phases cannot be directly inferred from experimental data, limiting the understanding of the biological response to the treatment. Here, we propose a semi-mechanistic mathematical model, defined by five compartments, able to describe the time curves of untreated and ?-rays irradiated mESCs and to extract the information therein embedded. To this end, mESCs were irradiated with 2 or 5 Gy ?-rays, collected over a period of 48 h and, at each time point, analyzed for apoptosis by using the Annexin V assay. When compared to unirradiated mESCs, the model estimates an additional 0.2 probability to undergo apoptosis for the 5 Gy-treated cells, and only a 0.07 (not statistically significantly different from zero) when a 2 Gy-irradiation dose is administered. Moreover, the model allows us to estimate the duration of the overall apoptotic process and also the time length of its early, intermediate, and late apoptotic phase. PMID:25195003

Terranova, N; Rebuzzini, P; Mazzini, G; Borella, E; Redi, C A; Zuccotti, M; Garagna, S; Magni, P

2014-12-21

85

Women into Science and Engineering? Gendered Participation in Higher Education STEM Subjects  

ERIC Educational Resources Information Center

This paper considers gendered patterns of participation in post-compulsory STEM education. It examines the trajectory of learning that takes students from A-level qualifications, through undergraduate work and into employment or further study. It also uses a long-term view to look at the best available evidence to monitor participation and…

Smith, Emma

2011-01-01

86

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

ERIC Educational Resources Information Center

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…

Collinson, Gill

2014-01-01

87

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

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…

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

2012-01-01

88

Authoritative Knowledge in Initial Teacher Education: Studying the Role of Subject Textbooks through Two Ethnographic Studies of Mathematics Teacher Education  

ERIC Educational Resources Information Center

Two related ethnographic research projects on mathematics teacher education in Sweden are presented in this paper. They represent a response to recent policy developments that reaffirm the value of authoritative subject studies content as the central and most important component in the professional knowledge base of would-be teachers and…

Beach, Dennis; Player-Koro, Catarina

2012-01-01

89

Female and Male Adolescents' Subjective Orientations to Mathematics and the Influence of Those Orientations on Postsecondary Majors  

ERIC Educational Resources Information Center

Although important strides toward gender parity have been made in several scientific fields, women remain underrepresented in the physical sciences, engineering, mathematics, and computer sciences (PEMCs). This study examines the effects of adolescents' subjective orientations, course taking, and academic performance on the likelihood of majoring…

Perez-Felkner, Lara; McDonald, Sarah-Kathryn; Schneider, Barbara; Grogan, Erin

2012-01-01

90

Gender and Ethnic Differences in Precollege Mathematics Coursework Related to Science, Technology, Engineering, and Mathematics (STEM) Pathways  

ERIC Educational Resources Information Center

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…

You, Sukkyung

2013-01-01

91

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

PubMed Central

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 in a pilot study. Here we report a trial in 18 healthy volunteers administered Stem-Kine twice daily for a 2 week period. Significant increases in circulating CD133 and CD34 cells were observed at days 1, 2, 7, and 14 subsequent to initiation of administration, which correlated with increased hematopoietic progenitors as detected by the HALO assay. Augmentation of EPC numbers in circulation was detected by KDR-1/CD34 staining and colony forming assays. These data suggest Stem-Kine supplementation may be useful as a stimulator of reparative processes associated with mobilization of hematopoietic and endothelial progenitors. PMID:20377846

2010-01-01

92

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

PubMed

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 in a pilot study. Here we report a trial in 18 healthy volunteers administered Stem-Kine twice daily for a 2 week period. Significant increases in circulating CD133 and CD34 cells were observed at days 1, 2, 7, and 14 subsequent to initiation of administration, which correlated with increased hematopoietic progenitors as detected by the HALO assay. Augmentation of EPC numbers in circulation was detected by KDR-1/CD34 staining and colony forming assays. These data suggest Stem-Kine supplementation may be useful as a stimulator of reparative processes associated with mobilization of hematopoietic and endothelial progenitors. PMID:20377846

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

2010-01-01

93

Mathematical Modelling at Secondary School: The MACSI-Clongowes Wood College Experience  

ERIC Educational Resources Information Center

In Ireland, to encourage the study of STEM (science, technology, engineering and mathematics) subjects and particularly mathematics, the Mathematics Applications Consortium for Science and Industry (MACSI) and Clongowes Wood College (County Kildare, Ireland) organized a mathematical modelling workshop for senior cycle secondary school students.…

Charpin, J. P. F.; O'Hara, S.; Mackey, D.

2013-01-01

94

STEM?!?!  

ERIC Educational Resources Information Center

The author's son has been an engineer since birth. He never asked "why" as a toddler, it was always "how's it work?" So that he wanted a STEM-based home education was no big surprise. In this article, the author considers what kind of curricula would work best for her complex kid.

Merrill, Jen

2012-01-01

95

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

PubMed Central

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

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

2014-01-01

96

Robotics Intrigue Middle School Students and Build STEM Skills  

ERIC Educational Resources Information Center

As science, technology, engineering and mathematics (STEM) education demands greater integration across all subject areas, technology teachers can showcase many of the cross-curricular projects already occurring inside their classrooms that intrigue students and build their STEM skills. Robotics, just one of those projects, has become an excellent…

Grubbs, Michael

2013-01-01

97

Engaging All Students in the Pursuit of STEM Careers  

ERIC Educational Resources Information Center

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 --…

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

2013-01-01

98

Mechanical characterization of human mesenchymal stem cells subjected to cyclic uniaxial strain and TGF-?1.  

PubMed

Human mesenchymal stem cells (hMSCs) have shown promising potential in the field of regenerative medicine particularly in vascular tissue engineering. Optimal growing of MSCs into specific lineage requires a thorough understanding of the role of mechanobiology in MSC metabolism. Although effects of external physical cues (mechanical stimuli through external loading and scaffold properties) on regulation of MSC differentiation into Smooth muscle (SM) lineage have attracted widespread attention, fewer studies are available on mechanical characterization of single engineered MSCs which is vital in tissue development through proper mechanotransductive cell-environment interactions. In this study, we investigated effects of uniaxial tensile strain and transforming growth factor-?1 (TGF-?1) stimulations on mechanical properties of engineered MSCs and their F-actin cytoskeleton organization. Micropipette aspiration technique was used to measure mechanical properties of MSCs including mean Young?s modulus (E) and the parameters of standard linear viscoelastic model. Compared to control samples, MSCs treated by uniaxial strain either with or without TGF-?1 indicated significant increases in E value and considerable drop in creep compliance curve, while samples treated by TGF-?1 alone met significant decreases in E value and considerable rise in creep compliance curve. Among treated samples, uniaxial tensile strain accompanied by TGF-?1 stimulation not only caused higher stimulation in MSC differentiation towards SM phenotype at transcriptional level, but also created more structural integrity in MSCs due to formation of thick bundled F-actin fibers. Results can be applied in engineering of MSCs towards functional target cells and consequently tissue development. PMID:25545439

Khani, Mohammad-Mehdi; Tafazzoli-Shadpour, Mohammad; Goli-Malekabadi, Zahra; Haghighipour, Nooshin

2015-03-01

99

Conflicts in Developing an Elementary STEM Magnet School  

ERIC Educational Resources Information Center

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…

Sikma, Lynn; Osborne, Margery

2014-01-01

100

At a time when other nations are increasingly developing and retaining their own science, technology, engineering, and mathematics (STEM) talent, it is critical that the United States develops its own globally  

E-print Network

their own science, technology, engineering, and mathematics (STEM) talent, it is critical that the United States develops its own globally competitive, domestic STEM talent in order to ensure future scientific and technological leadership. Although women comprise a significant and growing fraction of the U.S. STEM talent

Feschotte, Cedric

101

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

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…

Southern Regional Education Board (SREB), 2012

2012-01-01

102

Mathematical model, instability mechanisms, and stability criteria of a group of circular cylinders subjected to crossflow. [LMFBR  

SciTech Connect

A mathematical model is presented for a group of circular cylinders subject to crossflow. The fluid-force coefficients in the model are determined from available experimental data. It is found that there are three dynamic instability mechanisms: galloping controlled by fluid damping, flutter controlled by fluidelastic force, and coupled galloping-flutter instability controlled by both fluid damping and fluidelastic force. Closed-form solutions of the critical flow velocity for galloping and flutter are obtained based on constrained modes. Experimental data are found to be in good agreement with the analytical results.

Chen, S.S.

1981-05-01

103

Labour Market Motivation and Undergraduates' Choice of Degree Subject  

ERIC Educational Resources Information Center

Labour market outcomes of undergraduates' choice of subject are important for public policy and for students. Policy interest is indicated by the prominence of "employability" in public discourse and in proposals to concentrate government funding in England in supporting STEM subjects (science, technology, engineering and mathematics). As students…

Davies, Peter; Mangan, Jean; Hughes, Amanda; Slack, Kim

2013-01-01

104

STEM Thinking!  

ERIC Educational Resources Information Center

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

Reeve, Edward M.

2015-01-01

105

Lineage specification of hematopoietic stem cells: mathematical modeling and biological implications.  

PubMed

Lineage specification of hematopoietic stem cells is considered a progressive restriction in lineage potential. This view is consistent with observations that differentiation and lineage specification is preceded by a low-level coexpression of lineage specific, potentially antagonistic genes in early progenitor cells. This coexistence, commonly referred to as priming, disappears in the course of differentiation when certain lineage-restricted genes are upregulated while others are downregulated. Based on this phenomenological description, we propose a quantitative model that describes lineage specification as a competition process between different interacting lineage propensities. The competition is governed by environmental stimuli promoting a drift from a multipotent coexpression to the dominance of one lineage. The assumption of a context-dependent intracellular differentiation control is consistently embedded into our previously proposed model of hematopoietic stem cell organization. The extended model, which comprises self-renewal and lineage specification, is verified using available data on the lineage specification potential of primary hematopoietic stem cells and on the differentiation kinetics of the FDCP-mix cell line. The model provides a number of experimentally testable predictions. From our results, we conclude that lineage specification is best described as a flexible and temporally extended process in which lineage commitment emerges as the result of a sequence of small decision steps. The proposed model provides a novel systems biological view on the functioning of lineage specification in adult tissue stem cells and its connections to the self-renewal properties of these cells. Disclosure of potential conflicts of interest is found at the end of this article. PMID:17412891

Glauche, Ingmar; Cross, Michael; Loeffler, Markus; Roeder, Ingo

2007-07-01

106

Advancing K-8 Teachers' STEM Education for Teaching Interdisciplinary Science and Mathematics with Technologies  

ERIC Educational Resources Information Center

This primarily online Master's degree program focused on advancing K-8 teachers' interdisciplinary mathematical and science content knowledge while integrating appropriate digital technologies as learning and teaching tools. The mixed-method, interpretive study examined in-service teachers' technological, pedagogical, and content knowledge (TPACK)…

Niess, Margaret; Gillow-Wiles, Henry

2013-01-01

107

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

ERIC Educational Resources Information Center

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…

Beekman, John A.; Ober, David

2015-01-01

108

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.

109

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

NASA Astrophysics Data System (ADS)

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.

Matsumoto, Y.; Griffin, M. J.

2003-02-01

110

Values education in the mathematics classroom: subject values, educational values and one teacher's articulation of her practice1  

Microsoft Academic Search

The issue of values has been a longstanding concern of mathematics education research. Attempts have been made to analyze the specifically mathematical values which characterize the practice of mathematics teachers. In this paper we draw on one teacher's articulation of her practice to explore values issues in the teaching of mathematics, drawing both on the mathematics education literature and the

Liz Bills; Chris Husbands

2005-01-01

111

Gender Differences in Self-Efficacy and Sense of Class and School Belonging for Majors in Science, Technology, Engineering, and Mathematics (STEM) Disciplines  

NASA Astrophysics Data System (ADS)

Research into women's underrepresentation in science, technology, engineering, and mathematics (STEM) disciplines has become a topic of interest due to the increasing need for employees with technical expertise and a shortage of individuals to fill STEM jobs. The discrepancy in women's representation between STEM and other fields cannot adequately be explained by factors such as women's need to balance work and family (medicine and law are both extremely demanding careers), women's fear of competition (admissions into medical and law schools are highly competitive), or women's inability to excel in science (e.g., entry into medicine requires excellent achievement in the basic sciences). The purpose of this study is to gain a deeper understanding of the role and/or impact a sense of belonging has inside and outside of STEM classrooms. Research questions focused on the role and/or impact of belonging contributes to students' self-efficacy beliefs as a STEM major. Bandura's self-efficacy theory serves as the theoretical framework. Data sources include close-ended surveys of 200 sophomore- and junior-level college students majoring in a STEM discipline. A quantitative exploratory approach allowed participants' responses to be analyzed using both correlation and multiple regression analyses to understand whether a student's sense of belonging is associated with his or her self-efficacy beliefs. Findings suggested that positive support systems impact students' self-efficacy and play a role in fostering students' motivation and decision to major in STEM disciplines. This study contributes to positive social change by providing empirical evidence faculty and administrators may use to promote university-based STEM support programs reflecting the impact belonging has on students' self-efficacy and potentially increasing the number of students majoring in STEM disciplines.

Hogue, Barbara A.

112

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

Microsoft Academic Search

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, ysoil

Jianchang Yang; Jianhua Zhang; Zhiqing Wang; Qingsen Zhu

2001-01-01

113

A mathematical simulation of oxygen and lactic acid transport in skeletal muscle subject to periodic ischemia  

E-print Network

Approved as to style and content by: (A3 Q~ Chairman of Co 'ttee Hea of Department n', Member ember December 1974 q "e, Q. , tR ABSTRACT A Nathemat1cal Simulation of Oxygen and Lactic Acid Transport in Skeletal Muscle Subject to Periodic Isbhemia... of oxygen in the blood, t is time, z is 18 the axial coordinate, R& is the radius of the capillary, N is the oxygen capacity of blood, v& is the fractional saturation of oxygen in blood, and J is the flux out through the capillary wall. In terms...

Artigue, Ronald Stephen

1974-01-01

114

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

NASA Astrophysics Data System (ADS)

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.

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

2013-12-01

115

A novel mathematical model of activation and sensitization of platelets subjected to dynamic stress histories  

PubMed Central

Blood recirculating devices, such as ventricular assist devices and prosthetic heart valves, are burdened by thromboembolic complications requiring complex and lifelong anticoagulant therapy with its inherent hemorrhagic risks. Pathologic flow patterns occurring in such devices chronically activate platelets, and the optimization of their thrombogenic performance requires the development of flow-induced platelet activation models. However, existing models are based on empirical correlations using the well-established power law paradigm of constant levels of shear stress during certain exposure times as factors for mechanical platelet activation. These models are limited by their range of application and do not account for other relevant phenomena, such as loading rate dependence and platelet sensitization to high stress conditions, which characterize the dynamic flow conditions in devices. These limitations were addressed by developing a new class of phenomenological stress-induced platelet activation models that specifies the rate of platelet activation as a function of the entire stress history and results in a differential equation that can be directly integrated to calculate the cumulative levels of activation. The proposed model reverts to the power law under constant shear stress conditions and is able to describe experimental results in response to a diverse range of highly dynamic stress conditions found in blood recirculating devices. The model was tested in vitro under emulated device flow conditions and correlates well with experimental results. This new model provides a reliable and robust mathematical tool that can be incorporated into computational fluid dynamic studies in order to optimize design, with the goal of improving the thrombogenic performance of blood recirculating devices. PMID:23359062

Soares, Joăo S.; Sheriff, Jawaad

2013-01-01

116

Mathematical learning instruction and teacher motivation factors affecting science technology engineering and math (STEM) major choices in 4-year colleges and universities: Multilevel structural equation modeling  

NASA Astrophysics Data System (ADS)

Using the Educational Longitudinal Study of 2002/06, this study examined the effects of the selected mathematical learning and teacher motivation factors on graduates' science, technology, engineering, and math (STEM) related major choices in 4-year colleges and universities, as mediated by math performance and math self-efficacy. Using multilevel structural equation modeling, I analyzed: (1) the association between mathematical learning instruction factors (i.e., computer, individual, and lecture-based learning activities in mathematics) and students' STEM major choices in 4-year colleges and universities as mediated by math performance and math self-efficacy and (2) the association between school factor, teacher motivation and students' STEM major choices in 4-year colleges and universities via mediators of math performance and math self-efficacy. The results revealed that among the selected learning experience factors, computer-based learning activities in math classrooms yielded the most positive effects on math self-efficacy, which significantly predicted the increase in the proportion of students' STEM major choice as mediated by math self-efficacy. Further, when controlling for base-year math Item Response Theory (IRT) scores, a positive relationship between individual-based learning activities in math classrooms and the first follow-up math IRT scores emerged, which related to the high proportion of students' STEM major choices. The results also indicated that individual and lecture-based learning activities in math yielded positive effects on math self-efficacy, which related to STEM major choice. Concerning between-school levels, teacher motivation yielded positive effects on the first follow up math IRT score, when controlling for base year IRT score. The results from this study inform educators, parents, and policy makers on how mathematics instruction can improve student math performance and encourage more students to prepare for STEM careers. Students should receive all possible opportunities to use computers to enhance their math self-efficacy, be encouraged to review math materials, and concentrate on listening to math teachers' lectures. While all selected math-learning activities should be embraced in math instruction, computer and individual-based learning activities, which reflect student-driven learning, should be emphasized in the high school instruction. Likewise, students should be encouraged to frequently engage in individual-based learning activities to improve their math performance.

Lee, Ahlam

2011-12-01

117

Mathematics Underground  

ERIC Educational Resources Information Center

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

Luther, Kenneth H.

2012-01-01

118

Differential Expression of Copper-Zinc Superoxide Dismutase Gene of Polygonum sibiricum Leaves, Stems and Underground Stems, Subjected to High-Salt Stress  

PubMed Central

In aerobic organisms, protection against oxidative damage involves the combined action of highly specialized antioxidant enzymes, such as copper-zinc superoxide dismutase. In this work, a cDNA clone which encodes a copper-zinc superoxide dismutase gene, named PS-CuZnSOD, has been identified from P. sibiricum Laxm. by the rapid amplification of cDNA ends method (RACE). Analysis of the nucleotide sequence reveals that the PS-CuZnSOD gene cDNA clone consists of 669 bp, containing 87 bp in the 5? untranslated region; 459 bp in the open reading frame (ORF) encoding 152 amino acids; and 123 bp in 3? untranslated region. The gene accession nucleotide sequence number in GenBank is GQ472846. Sequence analysis indicates that the protein, like most plant superoxide dismutases (SOD), includes two conserved ecCuZnSOD signatures that are from the amino acids 43 to 51, and from the amino acids 137 to 148, and it has a signal peptide extension in the front of the N-terminus (1–16 aa). Expression analysis by real-time quantitative PCR reveals that the PS-CuZnSOD gene is expressed in leaves, stems and underground stems. PS-CuZnSOD gene expression can be induced by 3% NaHCO3. The different mRNA levels’ expression of PS-CuZnSOD show the gene’s different expression modes in leaves, stems and underground stems under the salinity-alkalinity stress. PMID:21614204

Qu, Chun-Pu; Xu, Zhi-Ru; Liu, Guan-Jun; Liu, Chun; Li, Yang; Wei, Zhi-Gang; Liu, Gui-Feng

2010-01-01

119

The Implementation of a One-Day Science, Technology, Engineering and Mathematics (STEM) Career Exploration Workshop for Middle School Girls in Elmira, New York  

NASA Astrophysics Data System (ADS)

Even now, women are underrepresented in Science, Technology, Engineering, and Mathematics (STEM) careers. The literature shows that one significant approach to address this issue is to work with middle school girls, ages eleven to thirteen, to get them interested and excited about STEM career paths. In addition to appropriate in-school support a review of many different middle school programs indicates that such programs exist in certain service areas but are still missing in others, especially the rural areas. To address this situation, a one-day STEM workshop called "Full STEAHM Ahead!" was implemented spring 2012 in Elmira, New York, to address the career exploration "turning point" for rural middle school girls. The implementation involved pre-workshop, workshop, and post-workshop phases. The success and effectiveness of the workshop was demonstrated by survey comments and verbal feedback from both the girls and educators who attended.

Turner, Carol-Witkowski CW

120

A mathematical model for predicting the life of polymer electrolyte fuel cell membranes subjected to hydration cycling  

NASA Astrophysics Data System (ADS)

Under typical Polymer Electrolyte Membrane Fuel Cell (PEMFC) fuel cell operating conditions, part of the membrane electrode assembly is subjected to humidity cycling due to variation of inlet gas RH and/or flow rate. Cyclic membrane hydration/dehydration would cause cyclic swelling/shrinking of the unconstrained membrane. In a constrained membrane, it causes cyclic stress resulting in mechanical failure in the area adjacent to the gas inlet. A mathematical modeling framework for prediction of the lifetime of a PEMFC membrane subjected to hydration cycling is developed in this paper. The model predicts membrane lifetime as a function of RH cycling amplitude and membrane mechanical properties. The modeling framework consists of three model components: a fuel cell RH distribution model, a hydration/dehydration induced stress model that predicts stress distribution in the membrane, and a damage accrual model that predicts membrane lifetime. Short descriptions of the model components along with overall framework are presented in the paper. The model was used for lifetime prediction of a GORE-SELECT membrane.

Burlatsky, S. F.; Gummalla, M.; O'Neill, J.; Atrazhev, V. V.; Varyukhin, A. N.; Dmitriev, D. V.; Erikhman, N. S.

2012-10-01

121

On the dynamics of neutral mutations in a mathematical model for a homogeneous stem cell population  

PubMed Central

The theory of the clonal origin of cancer states that a tumour arises from one cell that acquires mutation(s) leading to the malignant phenotype. It is the current belief that many of these mutations give a fitness advantage to the mutant population allowing it to expand, eventually leading to disease. However, mutations that lead to such a clonal expansion need not give a fitness advantage and may in fact be neutral—or almost neutral—with respect to fitness. Such mutant clones can be eliminated or expand stochastically, leading to a malignant phenotype (disease). Mutations in haematopoietic stem cells give rise to diseases such as chronic myeloid leukaemia (CML) and paroxysmal nocturnal haemoglobinuria (PNH). Although neutral drift often leads to clonal extinction, disease is still possible, and in this case, it has important implications both for the incidence of disease and for therapy, as it may be more difficult to eliminate neutral mutations with therapy. We illustrate the consequences of such dynamics, using CML and PNH as examples. These considerations have implications for many other tumours as well. PMID:23221988

Traulsen, Arne; Lenaerts, Tom; Pacheco, Jorge M.; Dingli, David

2013-01-01

122

Learning from our global competitors: A comparative analysis of science, technology, engineering and mathematics (STEM) education pipelines in the United States, Mainland China and Taiwan  

NASA Astrophysics Data System (ADS)

Maintaining a competitive edge within the 21st century is dependent on the cultivation of human capital, producing qualified and innovative employees capable of competing within the new global marketplace. Technological advancements in communications technology as well as large scale, infrastructure development has led to a leveled playing field where students in the U.S. will ultimately be competing for jobs with not only local, but also international, peers. Thus, the ability to understand and learn from our global competitors, starting with the examination of innovative education systems and best practice strategies, is tantamount to the economic development, and ultimate survival, of the U.S. as a whole. The purpose of this study was to investigate the current state of science, technology, engineering and mathematics (STEM) education and workforce pipelines in the U.S., China, and Taiwan. Two broad research questions examined STEM workforce production in terms of a) structural differences in primary and secondary school systems, including analysis of minimum high school graduation requirements and assessments as well as b) organizational differences in tertiary education and trends in STEM undergraduate and graduate degrees awarded in each region of interest. While each of the systems studied had their relative strengths and weaknesses, each of the Asian economies studied had valuable insights that can be categorized broadly in terms of STEM capacity, STEM interest and a greater understanding of global prospects that led to heightened STEM awareness. In China and Taiwan, STEM capacity was built via both traditional and vocational school systems. Focused and structured curriculum during the primary and early secondary school years built solid mathematics and science skills that translated into higher performance on international assessments and competitions. Differentiated secondary school options, including vocational high school and technical colleges and programs beginning shortly after junior high produced a greater number of alternatives for producing STEM capable students. A heightened interest in the STEM fields was built upon standardized academic core curriculum that ultimately yielded a greater percentage of qualified and interested Asian students pursuing bachelor's and advanced STEM degrees both in their native country and abroad. Rewards and incentives built into school systems, expansion of tertiary degree-granting programs, as well as the development of multiple university entrance pathways has served to heighten interest and perception of STEM careers as well as recruit top students into STEM fields. Further, foreign language classes, starting from either the first or third year of primary school, coupled with information technology and other experimental science and research themed classes, resulted in students who were more aware of global market demands. Analysis of longitudinal data shows that over a nine-year period, this combination of increased STEM capacity, interest and awareness resulted in a far greater percentage of 9th graders who eventually became STEM certificate, bachelor's, and advanced degree holders capable of competing in the global marketplace.

Chow, Christina M.

123

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)

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.

Wang, Hui-Hui

124

Reducing Test Form Overlap of the GRE Subject Test in Mathematics Using IRT Triple-Part Equating. GRE Board Professional Report No. 86-14P.  

ERIC Educational Resources Information Center

A study was conducted to evaluate the feasibility of using item response theory (IRT) equating to reduce test form overlap of the Graduate Record Examinations (GRE) Subject Test in Mathematics. Monte Carlo methods were employed to compare double-part equating with 20-item common item blocks to triple-part equating with 10-item common item blocks.…

McKinley, Robert L.; Schaeffer, Gary A.

125

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

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…

Journal of Science Education and Technology, 2012

2012-01-01

126

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

PubMed Central

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

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

127

Understanding STEM: Current Perceptions  

ERIC Educational Resources Information Center

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…

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

2011-01-01

128

STEM Careers Days at City and Islington College  

ERIC Educational Resources Information Center

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…

Swinscoe, David

2011-01-01

129

Disciplinary Literacy Pedagogy Development of STEM Preservice Teachers  

ERIC Educational Resources Information Center

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)…

Hart, Steven M.; Bennett, Stephanie M.

2013-01-01

130

The impact of STEM enrichment programs on California's high school Latino/a seniors  

NASA Astrophysics Data System (ADS)

This study seeks to determine if Science, Technology, Engineering, and Mathematics (STEM) enrichment programs, such as summer camp programs, after-school programs, or STEM-based high schools motivate Latino high school graduates to enter into STEM bachelor programs in college as compared to those students enrolled in non-STEM enrichment programs. A mixed-methods approach consisting of pre- and post- surveys and focus group interviews were used to determine students' level of interest in STEM, confidence in their ability to do well in STEM subjects, consideration to pursue advanced courses in STEM, and consideration to pursue a job in STEM. An average change (Post-Pre) across survey questions was calculated for each student. This provided an overall change across all variables and allowed for one variable called "Total Interest" to be derived.

Skrotzki, Gretchen

131

Students' Perception of Instrumental Support and Effort in Mathematics: The Mediating Role of Subjective Task Values  

ERIC Educational Resources Information Center

Recent research shows that teacher support is predictive of student outcomes, such as engagement and effort. In this study, we explored the relation between students' perceptions of teacher instrumental support in mathematics lessons and their effort in mathematics. We also tested whether this relation was mediated through students'…

Federici, Roger Andre; Skaalvik, Einar M.

2014-01-01

132

Factors That Contribute to Persistence and Retention of Underrepresented Minority Undergraduate Students in Science, Technology, Engineering, and Mathematics (STEM)  

ERIC Educational Resources Information Center

The objective of this research was to identify specific factors that contribute to underrepresented minority (African American, Hispanic, Native American) undergraduate students' success in STEM disciplines at a regional university during the 2007-2010 timeframe. As more underrepresented minority (URM) students complete STEM degrees, many will…

Mitchell, Sidney Kirk

2011-01-01

133

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

ERIC Educational Resources Information Center

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…

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

2014-01-01

134

Self-Efficacy Beliefs Mediate the Relationship between Subjective Cognitive Functioning and Physical and Mental Well-Being after Hematopoietic Stem Cell Transplant  

PubMed Central

Objective Cognitive problems are commonly reported by hematopoietic stem cell transplant (HSCT) survivors, and are associated with poorer physical and mental well-being. It was hypothesized that adverse effects of subjective cognitive impairment occur because cognitive difficulties reduce survivors’ confidence that they can manage HSCT-related symptoms—that is, self-efficacy for symptom management. Methods HSCT survivors (n = 245) 9-months to 3-years post-HSCT completed measures of subjective cognitive functioning, self-efficacy for symptom management, and clinically important outcomes: depressed mood, anxiety, and quality of life. Mediation analyses using bootstrapping were conducted to investigate whether effects of subjective cognitive impairment on these outcomes were mediated by self-efficacy for cognitive (SE-Cognitive), emotional (SE-Emotional), social (SE-Social), and physical (SE-Physical) symptom management. Results Self-efficacy mediated relations between subjective cognitive impairment and depressed mood (total indirect effect = ?.0064 and 95% confidence interval [CI] ?.0097 to ?.0036), anxiety (total indirect effect = ?.0045, CI ?.0072 to ?.0021), and quality of life (total indirect effect = .0952, CI .0901 to .2642). SE-Emotional was a unique mediator when the outcome was depressed mood and anxiety. SE-Social, SE-Physical and SE-Emotional were specific mediators when outcome was quality of life. Conclusions Findings support the conclusion that subjective cognitive impairment reduces HSCT survivors’ confidence in their ability to manage common post-HSCT symptoms, with implications for physical and mental well-being. Interventions that help enhance survivors’ self-efficacy are likely to benefit HSCT survivors who report subjective cognitive impairment. PMID:21739524

Wu, Lisa M.; Austin, Jane; Hamilton, Jada G.; Isola, Luis; Rowley, Scott; Warbet, Rachel; Winkel, Gary; Redd, William H.; Rini, Christine

2013-01-01

135

Mathematical Mathematical  

E-print Network

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

Brass, Stefan

136

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

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."…

Journal of Science Education and Technology, 2014

2014-01-01

137

STEM policy and science education: scientistic curriculum and sociopolitical silences  

NASA Astrophysics Data System (ADS)

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.

Gough, Annette

2014-05-01

138

Total hip arthroplasty by using a cementless ultrashort stem: a subject-specific finite element analysis for a young patient clinical case.  

PubMed

In this article, a subject-specific finite element analysis has been developed to study a clinical case of a surgically misaligned hip prosthesis with an ultrashort stem. It was set out to study the strain energy density pattern, comparing the results obtained with computed tomography images. The authors developed two other numerical models: the first one analyzes the stress and strain distributions in the healthy femur (without prosthesis) and the second one analyzes the same boneimplant biomechanical system of the clinical case but assuming the prosthesis in the proper position. The misaligned prosthesis produced an overload at the proximal posterior plane of the femur, as confirmed by computed tomography images, which detect the formation of new bone. The numerical model of the correctly positioned prosthesis demonstrated that the bone is not overloaded and that the position of neutral axis does not significantly shift from the physiological condition. PMID:23636754

Epasto, Gabriella; Foti, Albina; Guglielmino, Eugenio; Rosa, Michele A

2013-07-01

139

Cultivating Early STEM Learners: An Analysis of Mastery Classroom Instructional Practices, Motivation, and Mathematics Achievement in Young Children  

ERIC Educational Resources Information Center

According to the 2006 Program for International Assessment (PISA), the United States is behind their international counterparts in the areas of mathematics and science. (Darling-Hammond, 2010). The Unites States is at a critical point in developing future leaders in Science, Technology, Engineering, and Mathematics. In preparing students for a…

Ricks, Elizabeth Danielle

2012-01-01

140

From beat rate variability in induced pluripotent stem cell-derived pacemaker cells to heart rate variability in human subjects  

PubMed Central

Background We previously reported that induced Pluripotent Stem Cell-derived cardiomyocytes (iPSC-CM) manifest beat rate variability (BRV) resembling heart rate variability (HRV) in human sinoatrial node (SAN). We now hypothesized the BRV-HRV continuum originates in pacemaker cells. Objective To investigate whether cellular BRV is a source of HRV dynamics, we hypothesized three-levels of interaction among different cardiomyocyte entities: (1) single pacemaker cells, (2) networks of electrically coupled pacemaker cells and (3) in situ SAN. Methods We measured BRV/HRV properties in single pacemaker cells, iPSC-derived contracting embryoid bodies (EBs) and electrocardiograms from the same individual. Results Pronounced BRV/HRV were present at all three levels. Coefficient of variance (COV) of inter-beat intervals (IBI) and Poincaré plot SD1 and SD2 in single cells were 20x > EBs (P<0.05) and in situ heart (the latter two were similar, P>0.05). We also compared BRV magnitude among single cells, small (~5-10 cells) and larger EBs (>10 cells): BRV indices progressively increased (P<0.05) as cell number decreased. Disrupting intracellular Ca2+ handling markedly augmented BRV magnitude, revealing a unique bi-modal firing pattern, suggesting intracellular mechanisms contribute to BRV/HRV and the fractal behavior of heart rhythm. Conclusions The decreased BRV magnitude in transitioning from single cell to EB suggests HRV of hearts in situ originates from summation and integration of multiple cell-based oscillators. Hence, complex interactions among multiple pacemaker cells and intracellular Ca2+ handling determine HRV in humans and isolated cardiomyocyte networks. PMID:25052725

Barad, Lili; Novak, Atara; Ben-Ari, Erez; Lorber, Avraham; Itskovitz-Eldor, Joseph; Rosen, Michael R; Weissman, Amir; Binah, Ofer

2014-01-01

141

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

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…

Ing, Marsha

2014-01-01

142

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

PubMed Central

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

Sgouros, George; Song, Hong

2010-01-01

143

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

ERIC Educational Resources Information Center

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…

Dierking, Lynn D.

2010-01-01

144

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

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…

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

2010-01-01

145

VStops: A Thinking Strategy and Visual Representation Approach in Mathematical Word Problem Solving toward Enhancing STEM Literacy  

ERIC Educational Resources Information Center

This study aimed to determine the impact of strategic thinking and visual representation approaches (VStops) on the achievement, conceptual knowledge, metacognitive awareness, awareness of problem-solving strategies, and student attitudes toward mathematical word problem solving among primary school students. The experimental group (N = 96)…

Abdullah, Nasarudin; Halim, Lilia; Zakaria, Effandi

2014-01-01

146

Bringing STEM to Life  

ERIC Educational Resources Information Center

The interdisciplinary approach that science, technology, engineering and mathematics (STEM) projects inspire in both teachers and students "brings to light a larger picture that promotes real-world scientific applications, which has in turn been shown to increase undergraduate persistence in STEM." The high school students have been warned…

Berkeihiser, Mike; Ray, Dori

2013-01-01

147

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

ERIC Educational Resources Information Center

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…

Yilmaz, Ismail

2012-01-01

148

STEM--Beyond the Acronym  

ERIC Educational Resources Information Center

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…

Vasquez, Jo Anne

2015-01-01

149

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

NASA Astrophysics Data System (ADS)

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.

Westrick, Paul Andrew

150

The Current Status of STEM Education Research  

ERIC Educational Resources Information Center

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…

Brown, Josh

2012-01-01

151

Another call to increase STEM education  

NASA Astrophysics Data System (ADS)

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.

Showstack, Randy

2011-07-01

152

Mathematical modelling of adult hippocampal neurogenesis: effects of altered stem cell dynamics on cell counts and bromodeoxyuridine-labelled cells.  

PubMed

In the adult hippocampus, neurogenesis-the process of generating mature granule cells from adult neural stem cells-occurs throughout the entire lifetime. In order to investigate the involved regulatory mechanisms, knockout (KO) experiments, which modify the dynamic behaviour of this process, were conducted in the past. Evaluating these KOs is a non-trivial task owing to the complicated nature of the hippocampal neurogenic niche. In this study, we model neurogenesis as a multicompartmental system of ordinary differential equations based on experimental data. To analyse the results of KO experiments, we investigate how changes of cell properties, reflected by model parameters, influence the dynamics of cell counts and of the experimentally observed counts of cells labelled by the cell division marker bromodeoxyuridine (BrdU). We find that changing cell proliferation rates or the fraction of self-renewal, reflecting the balance between symmetric and asymmetric cell divisions, may result in multiple time phases in the response of the system, such as an initial increase in cell counts followed by a decrease. Furthermore, these phases may be qualitatively different in cells at different differentiation stages and even between mitotically labelled cells and all cells existing in the system. PMID:24598209

Ziebell, Frederik; Martin-Villalba, Ana; Marciniak-Czochra, Anna

2014-05-01

153

Mathematical modelling of adult hippocampal neurogenesis: effects of altered stem cell dynamics on cell counts and bromodeoxyuridine-labelled cells  

PubMed Central

In the adult hippocampus, neurogenesis—the process of generating mature granule cells from adult neural stem cells—occurs throughout the entire lifetime. In order to investigate the involved regulatory mechanisms, knockout (KO) experiments, which modify the dynamic behaviour of this process, were conducted in the past. Evaluating these KOs is a non-trivial task owing to the complicated nature of the hippocampal neurogenic niche. In this study, we model neurogenesis as a multicompartmental system of ordinary differential equations based on experimental data. To analyse the results of KO experiments, we investigate how changes of cell properties, reflected by model parameters, influence the dynamics of cell counts and of the experimentally observed counts of cells labelled by the cell division marker bromodeoxyuridine (BrdU). We find that changing cell proliferation rates or the fraction of self-renewal, reflecting the balance between symmetric and asymmetric cell divisions, may result in multiple time phases in the response of the system, such as an initial increase in cell counts followed by a decrease. Furthermore, these phases may be qualitatively different in cells at different differentiation stages and even between mitotically labelled cells and all cells existing in the system. PMID:24598209

Ziebell, Frederik; Martin-Villalba, Ana; Marciniak-Czochra, Anna

2014-01-01

154

Stem Cells  

MedlinePLUS

Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair ... body. There are two main types of stem cells: embryonic stem cells and adult stem cells. Stem ...

155

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

E-print Network

; Widelitz et al., 2006). Progress in the tissue engineering of stem cells has pushed this issue beyond basic unorganized, embryoid body and in teratoma. Attempts to engineer multi-potential stem cells into organs haveSpots and stripes: Pleomorphic patterning of stem cells via p-ERK-dependent cell chemotaxis shown

Maini, Philip K.

156

Neutron RBEs for cytopenia and repopulation of stroma and hematopoietic stem cells: mathematical models of marrow cell kinetics.  

PubMed

The objectives of this study were to (a) extend previous bone-marrow cell kinetics models that have been published for ionizing photons to include neutron radiations, and (b) provide Relative Biological Effectiveness (RBE) values for time-specific cell killing (cytopenia) and compensatory cellular proliferation (repopulation in response to toxic injury) for neutron doses ranging from 0.01 to 4.5 Gy delivered uniformly over one minute, hour, day, week, and month. RBEs for cytopenia of a cell lineage were based on ratios of protocol-specific doses that determined the same cell population nadir, whereas the RBEs for repopulation of a lineage were based on the ratios of protocol-specific doses that corresponded to the same total number of cells killed over the radiation treatments, and which should be replaced for long-term survival of the animal. Time-dependent RBEs were computed for neutron exposures relative to the effect of 60Co gamma rays given as a prompt dose. By the use of these RBE factors, low or variable dose rates, dose fractionations given over long periods of time, and different protocols involving several radiation qualities can be converted realistically, and by standard convention, into an equivalent dose of a reference radiation comprised of x or gamma rays given either as a pulse or at any other reference dose rate for which risk information based on epidemiological or animal dose-response data are available. For stromal tissues irradiated by fission neutrons, time-dependent RBEs for cytopenia were computed to range from 4.24 to 0.70 and RBEs for repopulation varied from a high of 6.88 to a low of 2.24. For hematopoietic stem cells irradiated by fission neutrons, time-dependent RBEs for cytopenia were computed to range from 5.02 to 0.22 and RBEs for repopulation varied from a high of 5.02 to a low of 1.98. RBEs based on tissue-kerma-free-in-air would be about twofold lower for isotropic cloud or rotational exposure geometries because marrow dose from isotropic neutron fields suffer factor-of-two greater attenuation than the gamma doses from gamma photons. For certain doses and dose rates, the RBE values computed for compensatory cellular proliferation clearly demonstrate the behavior that is commonly referred to as an inverse dose-rate effect, i.e., protraction of exposure may-under certain conditions-increase the magnitude of the dose response. Furthermore, because of non-linear rates for repair and repopulation, the highest RBEs are not necessarily found for the lowest doses nor the lowest RBEs always found at the highest doses. PMID:9119677

Jones, T D; Morris, M D; Young, R W; Kehlet, R A

1997-04-01

157

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

Microsoft Academic Search

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

Olivia Harvey

2005-01-01

158

BachelorofScience Mathematics  

E-print Network

BachelorofScience Mathematics N a m e : ______________________________________ I DL website at www.uleth.ca/ross/ppgs/ppg.html What is Mathematics? Carl F. Gauss (1777-1855) described his subject: "Mathematics is the Queen of Sciences and Arithmetic the Queen of Mathematics. She often

Seldin, Jonathan P.

159

BachelorofScience Mathematics  

E-print Network

BachelorofScience Mathematics Calendar Year: 2006-2007 Faculty: Arts & Science What is Mathematics? Carl F. Gauss (1777- 1855) described his subject:"Mathematics is the Queen of Sciences andArithmetic the Queen of Mathematics. She often condescends to render service to astronomy and other natural sciences

Seldin, Jonathan P.

160

BachelorofScience Mathematics  

E-print Network

BachelorofScience Mathematics Calendar Year: 2007/2008 Faculty: Arts & Science What is Mathematics? Carl F. Gauss (1777- 1855) described his subject:"Mathematics is the Queen of Sciences andArithmetic the Queen of Mathematics. She often condescends to render service to astronomy and other natural sciences

Seldin, Jonathan P.

161

BachelorofScience Mathematics  

E-print Network

BachelorofScience Mathematics Calendar Year: 2004-2005 Faculty: Arts & Science What is Mathematics? Carl F. Gauss (1777- 1855) described his subject:`Mathematics is the Queen of Sciences andArithmetic the Queen of Mathematics. She often condescends to render service to astronomy and other natural sciences

Seldin, Jonathan P.

162

BachelorofScience Mathematics  

E-print Network

BachelorofScience Mathematics Calendar Year: 2008/2009 Faculty: Arts & Science What is Mathematics? Carl F. Gauss (1777- 1855) described his subject:"Mathematics is the Queen of Sciences andArithmetic the Queen of Mathematics. She often condescends to render service to astronomy and other natural sciences

Seldin, Jonathan P.

163

Factors that Influence Participation of Students in Secondary Science and Mathematics Subjects in IB Schools Outside of the United States and Canada  

NASA Astrophysics Data System (ADS)

The purpose of this study was to investigate factors that affect the extent of international secondary students' participation in International Baccalaureate science and mathematics courses. The factors examined were gender, home region, size, percent host culture and age of the program, and coeducational and legal status of the school. Participation in math and science subjects was determined by analyzing the level and number of courses taken by students taking International Baccalaureate exams in 2010. Chi-Square and Cramer's V analysis were used to measure the effect of categorical variables on student participation and One-Way ANOVA and Bonferroni comparison of means were used to analyze the quantitative variables. All categorical variables were statistically significant (p<.01). Home region was the most important factor affecting participation in both math and science. Students from East, Southeast and South-Central Asia; and Eastern Europe have greater participation in math. The highest science participation came from students in East, Southern and Western Africa; and Southeast Asia. Top participators in science came from Australia/New Zealand, Northern Europe, East Africa and South-Central and Western Asia. State schools showed higher math and science participation. Science and math participation was also greater in all-male schools though associations were weak. Boys participated more than girls, especially in math. All quantitative variables were statistically significant. The program size had the largest effect size for both math and science with larger programs showing more participation at the higher level. A decreasing trend for age of the program and percent host culture was found for math participation. Three years of participation data were collected from an international school in Western Europe (n = 194). Variables included the influence of parent occupation, math preparedness (PSAT-Math), student achievement (GPA), and the importance of significant others in career and academic decisions. Findings indicate that performance on the PSAT- Math was the most important predictor of both science and mathematics participation. Twenty students were also interviewed. Results showed the importance of several key factors. These include the role of parents in student academic and career decisions, the importance of personal interest, and the contribution of early decisions in confidence-building.

Straffon, Elizabeth

164

An Ecological Model of STEM Education: Operationalizing STEM FOR ALL  

ERIC Educational Resources Information Center

This article describes a framework for how to provide more accessible, relevant, and effective instruction in science, technology, engineering, and mathematics (STEM) education to all students. The STEM for All initiative asserts that all students, including those with disabilities and other diverse learning needs, should be included in meaningful…

Basham, James D.; Israel, Maya; Maynard, Kathie

2010-01-01

165

Learning for STEM Literacy: STEM Literacy for Learning  

ERIC Educational Resources Information Center

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…

Zollman, Alan

2012-01-01

166

The Virtual Mathematics Center  

NSDL National Science Digital Library

Preprints and online journals from a wide variety of math and science organizations; Math video lectures; Online math dictionaries and encylopedias; mathematics courses, tutorials and databases; courses by subject; related mathematics information and databases.

Martindale, Jim.

167

AccessSTEM: Building Capacity  

ERIC Educational Resources Information Center

A series of activities were undertaken to understand the underrepresentation of people with disabilities in science, technology, engineering, and mathematics (STEM) careers and increase their participation in these fields. "AccessSTEM" collaborated with key stakeholders to conduct a "Capacity-Building Institute" ("CBI") in April 2009; share…

DO-IT, 2009

2009-01-01

168

Engaging Students in STEM Education  

ERIC Educational Resources Information Center

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…

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

2014-01-01

169

Department of Mathematical  

E-print Network

- Montana Common Core Standards Initiative Facilitator ­ Jennie Luebeck - Montana STEM Initiative Task ForceDepartment of Mathematical Sciences · Mathematics · Math Education · Statistics 2-214 Wilson Hall P for Meritorious Research and Creativity ­ Isaac Klapper · Mortar Board Professor of the Month of November ­ John

Maxwell, Bruce D.

170

Mathematics at Queen's Mathematics (BSc and MSci)  

E-print Network

, students may to tailor their programmes to reflect their individual strengths and interests from second) Mathematics is the universal language of science, and a beautiful subject in itself. Mathematics, Statistics Mathematics at Queen's University there is the opportunity to learn new skills and to take advantage

Paxton, Anthony T.

171

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

ERIC Educational Resources Information Center

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.…

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

2014-01-01

172

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.

173

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

ERIC Educational Resources Information Center

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…

Turk-Bicakci, Lori; Berger, Andrea

2014-01-01

174

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

ERIC Educational Resources Information Center

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…

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

2013-01-01

175

Does Subject Matter Matter? Estimating the Impact of Instructional Practices and Resources on Student Achievement in Science and Mathematics: Findings from TIMSS 2007  

ERIC Educational Resources Information Center

This study examined the effects of selected classroom factors (the emphasis on a student-centred approach, the shortage of instructional resources and homework) on the science and mathematics achievement of Jordanian eighth graders using data from the Trends in International Mathematics and Science Study of 2007. The analytical model also included…

Sabah, Saed; Hammouri, Hind

2010-01-01

176

Advancing STEM Education: A 2020 Vision  

ERIC Educational Resources Information Center

STEM (an acronym for science, technology, engineering and mathematics) had its origins in the 1990s at the National Science Foundation (NSF) and has been used as a generic label for any event, policy, program, or practice that involves one or several of the STEM disciplines. However, a recent survey on the "perception of STEM" found that most…

Bybee, Rodger W.

2010-01-01

177

Developing Effective STEM Professional Development Programs  

ERIC Educational Resources Information Center

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…

Avery, Zanj K.; Reeve, Edward M.

2013-01-01

178

1 Mathematics MATHEMATICS  

E-print Network

1 Mathematics MATHEMATICS The undergraduate mathematics major has three tracks: pure, applied mathematics. UNDERGRADUATE Bachelor's programs · Bachelor of Science with a major in mathematics (http:// bulletin.gwu.edu/arts-sciences/mathematics/bs) · Bachelor of Arts with a major in mathematics (http

Vertes, Akos

179

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

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…

National Council on Teacher Quality, 2009

2009-01-01

180

The Top STEM Degree Producers  

ERIC Educational Resources Information Center

This article presents a list of the top Science, Technology, Engineering, and Mathematics (STEM) degree producers in the U.S. This list is broken down into seven categories: (1) Total Minority Research/Scholarship and Other Doctoral: Mathematics and Statistics; (2) Total Minority Bachelors: Biological and Biomedical Sciences; (3) Total Minority…

Diverse: Issues in Higher Education, 2012

2012-01-01

181

The STEM Initiative: Constraints and Challenges  

ERIC Educational Resources Information Center

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…

Herschbach, Dennis R.

2011-01-01

182

Siemens Stem Academy  

NSDL National Science Digital Library

This website hosts resources for K-12 educators looking to access and share ideas for STEM (science, technology, engineering and mathematics) education. Monthly webinars (archived), lessons, videos, a blog, posters and other materials are available. Professional development opportunities are posted. Some resources require a free registration.

2012-01-01

183

Helping STEM Take Root  

ERIC Educational Resources Information Center

STEM--the catchy shorthand for "science, technology, engineering and mathematics"--has been part of the school improvement discussion for more than a decade, as educational leaders and policy makers have underscored the importance of these areas in preparing students for an internationally competitive, 21st-century economy. But while the acronym…

Schachter, Ron

2011-01-01

184

Helping STEM Take Root  

ERIC Educational Resources Information Center

STEM--shorthand for "science, technology, engineering, and mathematics"--has been part of the school improvement discussion for more than a decade, as educational leaders and policy makers have underscored the importance of these areas in an internationally competitive, 21st-century economy. But building and implementing programs that emphasize…

Schachter, Ron

2011-01-01

185

A Problem with STEM  

ERIC Educational Resources Information Center

Striking differences between physics and biology have important implications for interdisciplinary science, technology, engineering, and mathematics (STEM) education. The author is a physicist with interdisciplinary connections. The research group in which he works, the Center for Nonlinear Dynamics at the University of Texas at Austin, is…

Marder, Michael

2013-01-01

186

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

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

Reagan D. Flowers

2008-01-01

187

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

ERIC Educational Resources Information Center

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…

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

2012-01-01

188

stem.georgiasouthern.edu THE COLLEGE OF EDUCATION  

E-print Network

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

Hutcheon, James M.

189

Inclusive STEM High School Design: 10 Critical Components  

ERIC Educational Resources Information Center

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…

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

2014-01-01

190

Springboard to STEM  

NSDL National Science Digital Library

The goal of the Springboard to STEM program is "to increase student interest in science, technology, engineering and mathematics (STEM) and provide training and classroom materials for teachers." On this website, visitors can take advantage of free educational materials like worksheets, lesson plans, and discussion questions. Visitors need to fill out a form on the site before they can access all of the materials, but this only takes a minute or two. Moving on, the News and Links area contains links to their work around STEM education and the project's Twitter feed. The Marketplace is another great feature of the site which contains links to high quality STEM-related resources, such as books and classroom DVDs, that are available for purchase.

191

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

E-print Network

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

Anderson, Richard

192

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

ERIC Educational Resources Information Center

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…

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

2013-01-01

193

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.

194

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)

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.

Flowers, Reagan D.

195

Making Mathematics Phenomenal  

ERIC Educational Resources Information Center

Mathematics is often portrayed as an "abstract" cerebral subject, beyond the reach of many. In response, research with digital technology has led to innovative design in which mathematics can be experienced much like everyday phenomena. This lecture examines how careful design can "phenomenalise" mathematics and support not only engagement but…

Pratt, Dave

2012-01-01

196

Introduction to Mathematical Logic  

E-print Network

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

Landweber, Laura

197

Exploring the roles of integrin binding and cytoskeletal reorganization during mesenchymal stem cell mechanotransduction in soft and stiff hydrogels subjected to dynamic compression.  

PubMed

The objective of this study was to explore how the response of mesenchymal stem cells (MSCs) to dynamic compression (DC) depends on their pericellular environment and the development of their cytoskeleton. MSCs were first seeded into 3% agarose hydrogels, stimulated with the chondrogenic growth factor TGF-?3 and exposed to DC (~10% strain at 1Hz) for 1h on either day 7, 14, or 21 of culture. At each time point, the actin, vimentin and tubulin networks of the MSCs were assessed using confocal microscopy. Similar to previous results, MSCs displayed a temporal response to DC; however, no dramatic changes in gross cytoskeletal organization were observed with time in culture. Vinculin (a membrane-cytoskeletal protein in focal adhesions) staining appeared more intense with time in culture. We next aimed to explore how changes to the pericellular environment, independent of the duration of exposure to TGF-?3, would influence the response of MSCs to DC. To this end, MSCs were encapsulated into either 'soft' or 'stiff' agarose hydrogels that are known to differentially support pericellular matrix (PCM) development. The application of DC led to greater relative increases in the expression of chondrogenic marker genes in the stiffer hydrogels, where the MSCs were found to have a more well developed PCM. These increases in gene expression were not observed following the addition of RGDS, an integrin blocker, suggesting that integrin binding plays a role in determining the response of MSCs to DC. Microtubule organization in MSCs was found to adapt in response to DC, but this effect was not integrin mediated, as this cytoskeletal reorganization was also observed in the presence of RGDS. In conclusion, although the PCM, integrin binding, and cytoskeletal reorganization are all involved in mechanotransduction of DC, none of these factors in isolation was able to completely explain the temporal mechanosensitivity of MSCs to dynamic compression. PMID:24054946

Steward, Andrew J; Wagner, Diane R; Kelly, Daniel J

2014-10-01

198

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

PubMed Central

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

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

2013-01-01

199

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

NASA Astrophysics Data System (ADS)

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. An ongoing public opinion research project commissioned by Bayer Corporation, the Bayer Facts surveys examine US STEM education, diversity and workforce issues. The 16th in the series, the newest survey asks talent recruiters at some of the country's largest employers—those included in the Fortune 1000—to weigh in on current and future demand for new hires with 2- and 4-year STEM degrees. As professionals responsible for scouting, recruiting and hiring talent at Fortune 1000 companies, both STEM and non-STEM alike, these individuals are on the frontlines, tasked with assessing and filling their companies' workforce needs. The survey asks the recruiters whether new hires with 2- and 4-year STEM degrees are as, more or less in demand than their peers without STEM degrees? Are more new STEM jobs being created at their companies than non-STEM jobs? Can they find adequate numbers of qualified candidates in a timely manner and how fierce is the competition for STEM degree holders? To answer these and other questions, the survey polled 150 talent recruiters at Fortune 1000 companies, both STEM and non-STEM alike. The survey also asks the recruiters about diversion in STEM, workforce diversity in the pipeline, the role of community colleges in developing the STEM pipeline and the desired skills and competencies of new hires.

Bayer Corporation

2014-10-01

200

Using Mathematics in Science: Working with Your Mathematics Department  

ERIC Educational Resources Information Center

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…

Lyon, Steve

2014-01-01

201

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

ERIC Educational Resources Information Center

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…

Nadelson, Louis S.; Seifert, Anne

2013-01-01

202

Celebrating Mathematics All Year 'Round  

ERIC Educational Resources Information Center

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…

Daire, Sandra Arguelles

2010-01-01

203

Perceptions of Mathematics and Gender  

ERIC Educational Resources Information Center

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…

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

2008-01-01

204

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

E-print Network

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

Finkelstein, Noah

205

Undergraduate Foundations of Applied MathematicsApplied Mathematics  

E-print Network

Models for STEM Research and Education #12;+ Problem: Mathematicians usually don't play well with others, eliminates barriers, reduces redundancy Makes mathematics, statistics, and computation the common core, eliminates barriers, reduces redundancy Makes mathematics, statistics, and computation the common core

Gobbert, Matthias K.

206

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.

207

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

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…

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

2010-01-01

208

Academic Employment in Mathematics AMS Standard Cover Sheet  

E-print Network

the mathematical subject areas in which you have done research using, if applicable, the Mathematics Subject ClassiAcademic Employment in Mathematics AMS Standard Cover Sheet This cover sheet is provided as an aid

Stein, William

209

399Mathematics Mathematics  

E-print Network

399Mathematics Mathematics Kaprielian Hall 108 (213) 740-2400 FAX: (213) 740-2424 Email: mathinfo of Mathematics: Eric M. Friedlander, Ph.D. Professors: Kenneth Alexander, Ph.D.; Richard Arratia, Ph.D.; Peter The Department of Mathematics has designed its major to give students an under- standing of the several areas

Rohs, Remo

210

Patenting Human Genes and Stem Cells  

Microsoft Academic Search

Cell lines and genetically modified single cell organisms have been considered patentable subjects for the last two decades. However, despite the technical patentability of genes and stem cell lines, social and legal controversy concerning their 'ownership' has surrounded stem cell research in recent years. Some granted patents on stem cells with extremely broad claims are casting a shadow over the

Enca Martin-Rendon; Derek J. Blake

2007-01-01

211

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

PubMed Central

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

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

2014-01-01

212

The M in Stem via the M in Epidemiology  

ERIC Educational Resources Information Center

It is the case that some activities claiming to reside under the STEM umbrella do not, in fact, give participants the opportunity to engage in anything other than routine mathematics. With this in mind, we explore here the potential for developing and then delivering STEM activities based on the discipline of mathematical epidemiology. We argue…

Griffiths, Martin

2011-01-01

213

Community Partnerships for Fostering Student Interest and Engagement in STEM  

ERIC Educational Resources Information Center

The foundations of Science, Technology, Engineering and Mathematics (STEM) education begins in the early years of schooling when students encounter formal learning experiences primarily in mathematics and science. Politicians, economists and industrialists recognise the importance of STEM in society, and therefore a number of strategies have been…

Watters, James J.; Diezmann, Carmel M.

2013-01-01

214

Boosting STEM Interest in High School  

ERIC Educational Resources Information Center

One of the most critical labor shortages facing the U.S. involves the number of young adults entering careers in what's now commonly referred to as STEM (science, technology, engineering, and mathematics). Equally troubling is that the participation of blacks and Hispanics in STEM careers continues to lag that of whites and Asians. High school is…

Schneider, Barbara; Judy, Justina; Mazuca, Christina

2012-01-01

215

In Pursuit of Sustainable STEM Certification Programs  

ERIC Educational Resources Information Center

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…

Schuster, Dwight

2013-01-01

216

STEM Leadership Qualification: Tomorrow's Leaders Today  

ERIC Educational Resources Information Center

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…

Williams, Chris

2009-01-01

217

A Survey on Mathematical Proofs among Teachers  

ERIC Educational Resources Information Center

Mathematical proofs are not only the focus of every country's mathematics curriculum reforms, but also the subject of research on mathematics education. This paper is based on a survey of mathematics teachers, the goal of which was to investigate the understanding of mathematical proofs of secondary school math teachers, their levels of…

Zhou, Chao; Bao, Jiansheng

2009-01-01

218

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.

2010-09-15

219

"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)

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.

Attard, Catherine

2013-12-01

220

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

NASA Astrophysics Data System (ADS)

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:

Welch, C.; Osborne, B.

221

Cellcell interaction networks regulate blood stem and progenitor cell fate  

E-print Network

Cell­cell interaction networks regulate blood stem and progenitor cell fate Daniel C Kirouac1 a novel mathematical model of blood stem cell development incorporating cell-level kinetic parameters. Through integrated in silico and experimental analyses, we show that blood stem and progenitor cell fate

Zandstra, Peter W.

222

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

ERIC Educational Resources Information Center

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…

Johnson, Carla C.

2012-01-01

223

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)

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.

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

2009-12-01

224

Extinction models for cancer stem cell therapy  

PubMed Central

Cells with stem cell-like properties are now viewed as initiating and sustaining many cancers. This suggests that cancer can be cured by driving these cancer stem cells to extinction. The problem with this strategy is that ordinary stem cells are apt to be killed in the process. This paper sets bounds on the killing differential (difference between death rates of cancer stem cells and normal stem cells) that must exist for the survival of an adequate number of normal stem cells. Our main tools are birth–death Markov chains in continuous time. In this framework, we investigate the extinction times of cancer stem cells and normal stem cells. Application of extreme value theory from mathematical statistics yields an accurate asymptotic distribution and corresponding moments for both extinction times. We compare these distributions for the two cell populations as a function of the killing rates. Perhaps a more telling comparison involves the number of normal stem cells NH at the extinction time of the cancer stem cells. Conditioning on the asymptotic time to extinction of the cancer stem cells allows us to calculate the asymptotic mean and variance of NH. The full distribution of NH can be retrieved by the finite Fourier transform and, in some parameter regimes, by an eigenfunction expansion. Finally, we discuss the impact of quiescence (the resting state) on stem cell dynamics. Quiescence can act as a sanctuary for cancer stem cells and imperils the proposed therapy. We approach the complication of quiescence via multitype branching process models and stochastic simulation. Improvements to the ?-leaping method of stochastic simulation make it a versatile tool in this context. We conclude that the proposed therapy must target quiescent cancer stem cells as well as actively dividing cancer stem cells. The current cancer models demonstrate the virtue of attacking the same quantitative questions from a variety of modeling, mathematical, and computational perspectives. PMID:22001354

Sehl, Mary; Zhou, Hua; Sinsheimer, Janet S.; Lange, Kenneth L.

2012-01-01

225

What is Mathematics Mathematical Problems  

E-print Network

What is Mathematics Mathematical Problems A Personal Example The 3n+1 Problem Open Problems' Company Mathematics Course 2014 Thomas Prellberg Open Problems in Mathematics #12;What is Mathematics Mathematical Problems A Personal Example The 3n+1 Problem Topic Outline 1 What is Mathematics 2 Mathematical

Wright, Francis

226

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

Microsoft Academic Search

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

Nancy N. Heilbronner

2009-01-01

227

Pathways in STEM: Factors Affecting the Retention and Attrition of Talented Men and Women from the STEM Pipeline  

ERIC Educational Resources Information Center

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…

Heilbronner, Nancy N.

2009-01-01

228

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

ERIC Educational Resources Information Center

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…

Rogers-Chapman, M. Felicity

2014-01-01

229

Detecting Water Stress in Trees Using Stem Electrical Conductivity Measurements  

Microsoft Academic Search

Using time domain refl ectometry (TDR), we studied stem water content (?stem), stem elec- trical conductivity (?stem), and their ratio for 220 d in stressed, installation-cured, living trees of four species. Lysimeter-grown mango (Mangifera indica L.), banana (Musa acuminata Colla), date (Phoenix dactylifera L.), and olive (Olea europaea L.) were subjected to several types of mild (intensity and duration) water

Arie Nadler; Eran Raveh; Uri Yermiyahu; Marcos Lado; Ahmed Nasser; Mordechai Barak; Steve Green

2008-01-01

230

What Is Discrete Mathematics?  

ERIC Educational Resources Information Center

This paper cites information received from a number of sources, e.g., mathematics teachers in two-year colleges, publishers, and convention speakers, about the nature of discrete mathematics and about what topics a course in this subject should contain. Note is taken of the book edited by Ralston and Young which discusses the future of college…

Sharp, Karen Tobey

231

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.

232

Mathematics Takes Center Stage  

Microsoft Academic Search

It was just fifty years ago that mathematician Morris Kline, bothered by the general perception that mathematics was a subject divorced from the central concerns of society at large, took time out from his purely research activities to write the first of several books designed to demonstrate that precisely the opposite was true: mathematics is, and has been throughout history,

Robert Osserman

233

The Mathematics Filter.  

ERIC Educational Resources Information Center

Of the several barriers to women in the professions--discrimination at entry level, limited opportunities for advanced study, limited advancement, role conflict, and role socialization--lack of motivation to persist in the study of mathematics and mathematics-related subjects is one that can be prevented and cured. (MLW)

Tobias, Sheila

1981-01-01

234

Page 1 of 29 HUMAN STEM CELL RESEARCH OVERSIGHT PROGRAM  

E-print Network

Page 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 education of investigators involved in human stem cell research. 5. Embryonic Germ Cells: Cells found

Loudon, Catherine

235

Association for Women in Mathematics University of Kansas Student Chapter  

E-print Network

AWM @ KU Association for Women in Mathematics University of Kansas Student Chapter Introduction at the University of Kansas. We are the fourth student chapter in the country. Our student members are mostly STEM in mathematics. To encourage women to pursue mathematics is a way to foster a cooperative mathematical

236

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

PubMed

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

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

2015-01-01

237

Mathematical Difficulty: Does Early Intervention Enhance Mathematical Performance?  

ERIC Educational Resources Information Center

The need to ask educators about their opinions on the subject to what extent early intervention methods enhance mathematical performance is long overdue. The purpose of this quantitative research is to examine the extent to which teachers agree that early intervention methods enhance the mathematical performance of students with mathematical

Graham, Jennifer

2008-01-01

238

Graduating STEM Competent and Confident Teachers: The Creation of a STEM Certificate for Elementary Education Majors  

ERIC Educational Resources Information Center

A collaborative of STEM (science, technology, engineering, and mathematics) and education faculty developed a STEM certificate aimed at elementary education majors. A four-phase process model was used to create and evaluate courses. The certificate is comprised of three interdisciplinary, team-taught, lab-based courses: Environmental Biology,…

Murphy, Tony P.; Mancini-Samuelson, Gina J.

2012-01-01

239

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

ERIC Educational Resources Information Center

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…

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

2014-01-01

240

Stepping onto the STEM Pathway: Factors Affecting Talented Students' Declaration of STEM Majors in College  

ERIC Educational Resources Information Center

Despite a growing national need to develop capabilities in science, technology, engineering, and mathematics (STEM), many men and women who are considered talented in these areas during high school choose not to pursue STEM undergraduate majors. A purpose of the current study was to better understand factors that contribute to an individual's…

Heilbronner, Nancy N.

2011-01-01

241

Increasing the Number of STEM Graduates: Insights from the U.S. STEM Education & Modeling Project  

ERIC Educational Resources Information Center

The Business-Higher Education Forum's (BHEF's) Securing America's Leadership in STEM Initiative has broken new ground in addressing one of the nation's most critical challenges--increasing the number of students who are interested in and pursue careers in science, technology, engineering or mathematics, the so-called "STEM" fields. The Initiative,…

Business-Higher Education Forum (NJ1), 2010

2010-01-01

242

Press Release 26 April 2013 Let's twist again: the role of cellulose in stem twisting  

E-print Network

.cub.2013.04.013. © Inra Benoît Landrein Convolvulus arvensis stem with a twisted stem (B), is the cornerstone of plant structure. How are plants able to maintain such mathematical consistency? Convolvulus arvensis stem with a twisted stem (B) and an altered phyllotaxis (A). The results obtained

van Tiggelen, Bart

243

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

ERIC Educational Resources Information Center

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…

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

2014-01-01

244

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

ERIC Educational Resources Information Center

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…

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

2010-01-01

245

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

E-print Network

of effective learning environments for specialized STEM schools using an ecology metaphor. In answering the research questions related to success of students attending either T-STEM or traditional schools, I concluded success on reading, mathematics, science...

Erdogan, Niyazi

2014-07-29

246

The Mathematical Atlas  

NSDL National Science Digital Library

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.

Rusin, Dave.

1969-12-31

247

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics #12;Competition Organization Organisation du Concours Canadian Mathematics Competition Faculty and administered by the Canadian Mathematics Competition. The 2005 offering of these Contests drew an enrollment

Le Roy, Robert J.

248

Mathematical Infestation  

E-print Network

A Mathematical Glance at Zombie Infestation Brody Dylan Johnson Introduction A Simple Mathematical Model A Reality Check Zombie Infestation with Resistance Simulations Conclusion A Mathematical Glance at Zombie Infestation Brody Dylan Johnson April 21, 2010 Reference: "When Zombies Attack!: Mathematical

Johnson, Brody Dylan

249

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics 2010 Centre for Education in Mathematics and Computing #12;Competition Organization Organisation du Concours Centre for Education in Mathematics and Computing Faculty and Staff / Personnel du Centre d

Le Roy, Robert J.

250

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics: c 2009 Centre for Education in Mathematics and Computing #12;Competition Organization Organisation du Concours Centre for Education in Mathematics and Computing Faculty and Staff / Personnel du Centre

Le Roy, Robert J.

251

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics Sybase iAnywhere Solutions c 2005 Waterloo Mathematics Foundation #12;Competition Organization Organisation du Concours Canadian Mathematics Competition Faculty and Staff / Personnel du Concours canadien de

Le Roy, Robert J.

252

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics 2009 Centre for Education in Mathematics and Computing #12;Competition Organization Organisation du Concours Centre for Education in Mathematics and Computing Faculty and Staff / Personnel du Centre d

Le Roy, Robert J.

253

American Mathematical Society Books Online  

NSDL National Science Digital Library

The American Mathematical Society's (AMS) Books Online makes available full text of over 30 scholarly monographs published by the AMS, covering a range of subjects including algebra and algebraic geometry, analysis, applications, differential equations, geometry and topology, logic and foundations, mathematical physics, number theory, probability, and general interest. Their gateway page organizes titles by subject and author.

254

Discrete Mathematics and Its Applications  

ERIC Educational Resources Information Center

The article gives ideas that lecturers of undergraduate Discrete Mathematics courses can use in order to make the subject more interesting for students and encourage them to undertake further studies in the subject. It is possible to teach Discrete Mathematics with little or no reference to computing. However, students are more likely to be…

Oxley, Alan

2010-01-01

255

Role Models and Informal STEM-Related Activities Positively Impact Female Interest in STEM  

ERIC Educational Resources Information Center

The United States' economy depends greatly on a citizenry that possesses scientific and technical skills within the fields of science, technology, engineering, and mathematics (STEM) for economic growth. In the past few decades, technological advancement has created a demand for a highly skilled workforce possessing scientific and mathematical

Weber, Katherine

2011-01-01

256

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

Matter Science, published a chapter titled "Recruiting Women STEM Faculty: Best Practices" in the new Chapters Published by MagLab Authors on Advancing Participation of Women in STEM Fields. National High in the book, Girls and Women in STEM: A Never Ending Story. Her chapter, "The Evolution of the Chilly Climate

McQuade, D. Tyler

257

Correlating Mathematics and Science  

ERIC Educational Resources Information Center

The change from students learning all subjects together in a one-room schoolhouse to learning in classes separated by subject and grade resulted in distinct disciplines such as social studies, mathematics, science, and English. What was lost was the unified, holistic curriculum that a one-room setting required. Since students move from…

Mireles, Selena Vasquez

2009-01-01

258

Connecting Mathematics across the Curriculum. 1995 Yearbook.  

ERIC Educational Resources Information Center

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,…

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

259

Developmental changes and gender effects on motivational constructs based on the expectancy-value model in Czech and United States students regarding learning of science, mathematics, and other subjects  

NASA Astrophysics Data System (ADS)

This study employed American and Czech student samples to investigate the motivational constructs used in Eccles and Wigfield's (1983) expectancy-value model. To predict achievement behavior, the model specifies relationships among expectancy for-success and task value, task-specific self-concept, perception of task-difficulty, perceptions of social environment, and interpretations and attributions for past events in relation to the social world. Czech and American students (n = 1,145) in grades 4--12 were the participants in this study. The causal relationships among the constructs were tested to investigate structural similarities and differences in the models for both countries. This study also explored developmental changes, gender, and national differences in the students' motivational beliefs for these motivational constructs: Expectancy for Success, Intrinsic Interest Value, Task-specific Self-concept, Perception of Task-difficulty, and Perceived Vocational Gender Dominance for science, mathematics, and other school subjects. The findings indicated that, for both countries, with respect to changes over grade level, compared to the younger students, the older students showed lower motivational beliefs for most subject areas except reading. However, the Czech students in grades 6--8 showed more positive motivational beliefs in life science and social studies than did the Czech students in other grade levels. In comparing genders, the male students exhibited more positive motivational beliefs in physical science than did the female students, and female students showed more positive motivational beliefs in reading than did the male students. For life science, the Czech female students rated Intrinsic Interest Value and Task-specific Self-concept higher than did their peer male students. The American students' motivational beliefs in reading were more positive than were Czech students', and the Czech students held more positive motivational beliefs in life science than did the American students. With minor variations for each country, the expectancy-value model provided a reasonable tool for understanding the causal relationships among the motivational beliefs. For the Czech sample, Perception of Task-difficulty was a strong negative predictor for Expectancy for Success for most school subjects except life science whereas, for the American sample, it was a weak but significant negative predictor for Intrinsic Interest Value for most school subjects except social studies. Implications for science education are discussed.

Yang, Eun-Mi

260

Idaho Science, Technology, Engineering and Mathematics Overview  

SciTech Connect

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.

None

2011-01-01

261

Mathematical Resilience  

ERIC Educational Resources Information Center

The term "mathematical resilience" is used to describe a learner's stance towards mathematics that enables pupils to continue learning despite finding setbacks and challenges in their mathematical learning journey. There are ways of working in mathematics that increase mathematical resilience and conversely there are ways of working that decrease…

Johnston-Wilder, Sue; Lee, Clare

2010-01-01

262

Mathematics Scholarships  

E-print Network

Mathematics Scholarships Complete Scholarship Name Application Deadline Date Contact Name Contact of Mathematics to an outstanding undergraduate mathematics major who has demonstrated excellence in mathematics is selected by the Undergraduate Advisory Council in the Department of Mathematics. No N/A Douglas B. Meade

Almor, Amit

263

Some Notes on Gender Differences in Mathematics  

Microsoft Academic Search

This paper is a belated follow?up to an article by Sharma & Meighan published in 1980. They suggested that pupils who studied other numerical subjects, specifically physics and technical drawing, did better in mathematics O level than pupils who studied only arts subjects with mathematics. They further suggested that sex differences in enrollments in other cognate subjects might account for

Alison Kelly

1987-01-01

264

Gender in STEM Education: A Data-Driven Learning Guide  

NSDL National Science Digital Library

This exercise explores gender participation in science, technology, engineering, and mathematics (STEM) education, from high school through college and into the workforce, and whether participation has changed over the past 20 years. Crosstabulations and frequencies will be used.

Icpsr

265

cial Mathematics Instruction Special Mathematics Instruction Special Mathematics Instruction S hematics Instruction Special Mathematics Instruction Special Mathematics Instruction Special M  

E-print Network

SMI cial Mathematics Instruction Special Mathematics Instruction Special Mathematics Instruction S hematics Instruction Special Mathematics Instruction Special Mathematics Instruction Special M ruction Special Mathematics Instruction Special Mathematics Instruction Special Mathematics In cial Mathematics

Vaswani, Namrata

266

History of Mathematics  

NSDL National Science Digital Library

A broad collection of mathematical bibliographies and links to pages explaining important concepts. One highlighted feature is a link to Euclid's 'Elements', which contains all 13 books and illustrated figures. Another interesting attribute is a link to the famous 1900 speech of David Hilbert, a leading twentieth century mathematician, in which he addressed the International Congress of Mathematicians in Paris and described 23 important mathematical problems. A history of mathematics by region gives bibliographies, and sometimes maps and chronologies for Babylonia, Egypt, China, Greece, India, the Arab sphere, Japan, and Europe. Bibliographies and some web links are provided for the subjects of numerals and counting, algebra, geometry, arithmetic and number theory, mathematical analysis, and probability and statistics. Lists of books and other non-internet resources, such as organizations devoted to the history of mathematics, journals, and catalogs are also listed.

267

Teachers' Beliefs about School Mathematics and Mathematicians' Mathematics and Their Relationship to Practice  

ERIC Educational Resources Information Center

There is broad acceptance that mathematics teachers' beliefs about the nature of mathematics influence the ways in which they teach the subject. It is also recognised that mathematics as practised in typical school classrooms is different from the mathematical activity of mathematicians. This paper presents case studies of two secondary…

Beswick, Kim

2012-01-01

268

Stem cell population asymmetry can reduce rate of replicative aging  

E-print Network

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...

Hormoz, Sahand

2013-01-01

269

A Conceptual Metaphor Framework for the Teaching of Mathematics  

ERIC Educational Resources Information Center

Word problems in mathematics seem to constantly pose learning difficulties for all kinds of students. Recent work in math education (for example, [Lakoff, G. & Nunez, R. E. (2000). "Where mathematics comes from: How the embodied mind brings mathematics into being." New York: Basic Books]) suggests that the difficulties stem from an inability on…

Danesi, Marcel

2007-01-01

270

The Sound of Music and Its Link with Mathematics  

ERIC Educational Resources Information Center

This article discusses a relatively unnoticed application of mathematics by describing its connection with an aspect of music, in particular, the musical scales. Stemming from a problem found in a Year 9 mathematics textbook commonly used in Singapore, the article illustrates the role of mathematics in musical scales by first considering the…

Tan, Kuo Cheang; Chua, Boon Liang

2006-01-01

271

Atomic Force Mechanobiology of Pluripotent Stem Cell-Derived Cardiomyocytes  

Microsoft Academic Search

We describe a method using atomic force microscopy (AFM) to quantify the mechanobiological properties of pluripotent, stem cell-derived cardiomyocytes, including contraction force, rate, duration, and cellular elasticity. We measured beats from cardiomyocytes derived from induced pluripotent stem cells of healthy subjects and those with dilated cardiomyopathy, and from embryonic stem cell lines. We found that our AFM method could quantitate

Jianwei Liu; Ning Sun; Marc A. Bruce; Joseph C. Wu; Manish J. Butte

2012-01-01

272

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

NASA Astrophysics Data System (ADS)

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 interest students in STEM majors and careers begin at the middle school level, a time when students are developing their own interests and recognizing their academic strengths. These factors have led scholars to call for instruments that effectively measure interest in STEM classes and careers, particularly for middle school students. In response, we leveraged the social cognitive career theory to develop a survey with subscales in science, technology, engineering, and mathematics. In this manuscript, we detail the six stages of development of the STEM Career Interest Survey. To investigate the instrument's reliability and psychometric properties, we administered this 44-item survey to over 1,000 middle school students (grades 6-8) who primarily were in rural, high-poverty districts in the southeastern USA. Confirmatory factor analyses indicate that the STEM-CIS is a strong, single factor instrument and also has four strong, discipline-specific subscales, which allow for the science, technology, engineering, and mathematics subscales to be administered separately or in combination. This instrument should prove helpful in research, evaluation, and professional development to measure STEM career interest in secondary level students.

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

2014-06-01

273

Research and Teaching: Project-Based Instruction with Future STEM Educators--An Interdisciplinary Approach  

ERIC Educational Resources Information Center

This study documented the means by which STEM (science, technology, engineering, and mathematics) educators experienced the mathematics and science associated with understanding lunar phenomena. The article reports how well STEM education graduate students interacted with projectbased materials as they engaged in interdisciplinary teaching and…

Wilhelm, Jennifer

2014-01-01

274

STEM Equality and Diversity Toolkit  

ERIC Educational Resources Information Center

In 2008, the Centre for Science Education at Sheffield Hallam University teamed up with VT Enterprise (now Babcock International) in their submission of a successful bid to deliver the national STEM (Science, Technology, Engineering and Maths) Subject Choice and Careers Project. An integral part of the bid was the promotion of equality and…

Collins, Jill

2011-01-01

275

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

ERIC Educational Resources Information Center

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,…

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

2012-01-01

276

Report on STEM Graduation and Enrollment Trends. April 2013  

ERIC Educational Resources Information Center

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…

Jenkins, Rick; Butler, Sharon; Mitchell, Suzanne

2013-01-01

277

Report on STEM Graduation and Enrollment Trends. February 2014  

ERIC Educational Resources Information Center

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…

Jenkins, Rick; Butler, Sharon; Mitchell, Suzanne

2014-01-01

278

The STEM Pathway for Women: What Has Changed?  

ERIC Educational Resources Information Center

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…

Heilbronner, Nancy N.

2013-01-01

279

Beyond the Pipeline: STEM Pathways for Youth Development  

ERIC Educational Resources Information Center

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…

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

2012-01-01

280

Preparing the Future STEM Workforce for Diverse Environments  

ERIC Educational Resources Information Center

Following the belief that diversity breeds innovation in scientific endeavors, there is a national push for more diversity in the science, technology, engineering, and mathematics (STEM) workforce in order to maintain national economic competitiveness. Currently, STEM-related employment is only 28% non-White; however, greater efforts to recruit…

Daily, Shaundra Bryant; Eugene, Wanda

2013-01-01

281

Shifting Expectations: Bringing STEM to Scale through Expanded Learning Systems  

ERIC Educational Resources Information Center

Expanded learning opportunities, such as afterschool and summer programs, are particularly well positioned to help address science, technology, engineering, and mathematics (STEM) education crisis. A large percentage of youth participating in afterschool programs are members of groups traditionally underrepresented in STEM fields. Additionally,…

Donner, Jessica; Wang, Yvonne

2013-01-01

282

Report on STEM Graduation and Enrollment Trends. June 2012  

ERIC Educational Resources Information Center

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…

Jenkins, Rick; Mitchell, Suzanne

2012-01-01

283

Are We Missing Opportunities to Encourage Interest in STEM Fields?  

ERIC Educational Resources Information Center

The disciplines of science, technology, engineering, and mathematics (STEM) have experienced problems in producing adequate numbers of graduates to meet workforce needs in these fields. Although entrance into the STEM fields has grown, this growth is not keeping pace with the overall needs of the labor market. Better understanding of the important…

Hall, Cathy; Dickerson, Jeremy; Batts, David; Kauffmann, Paul; Bosse, Michael

2011-01-01

284

MATHEMATICS AND SCIENCE CENTERS PROFESSIONAL DEVELOPMENT ACTIVITY LOG/EVENT RECORD  

E-print Network

) ___ Mathematics ___ 99.6/SAM3 ___ Science ___ Common Core ___ Technology ___ Next Generation Sci Standards Engineering ___ Network Assessment Project ___ TI Science ___ MI STEM Partnership ___ Other DescribeMATHEMATICS AND SCIENCE CENTERS PROFESSIONAL DEVELOPMENT ACTIVITY LOG/EVENT RECORD This form

285

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

ERIC Educational Resources Information Center

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…

Grantham, Tarek C.; Henfield, Malik S.

2011-01-01

286

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

ERIC Educational Resources Information Center

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…

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

2014-01-01

287

Hidden Currents in the STEM Pipeline: Insights from the Dyschronous Life Episodes of a Minority Female STEM Teacher  

ERIC Educational Resources Information Center

In this article, I use the idea of "dyschrony" to describe the multiple disjunctures experienced in a Hispanic woman's life as she struggled to gain full membership in the STEM (science, technology, engineering, and mathematics) community. Despite having earned a doctoral degree in chemistry and a teaching position in a STEM school,…

Teo, Tang Wee

2014-01-01

288

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics participation de: c 2007 Waterloo Mathematics Foundation #12;Competition Organization Organisation du Concours and Computing is proud to once again be the major sponsor of the Canadian Mathematics Competition this year

Le Roy, Robert J.

289

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics Chartered Accountants Maplesoft C.M.C. Supporter c 2007 Waterloo Mathematics Foundation #12;Competition Organization Organisation du Concours Centre for Education in Mathematics and Computing Faculty and Staff

Le Roy, Robert J.

290

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of The Centre for Education in Mathematics Institut canadien des actuaires C.M.C. Supporters: Avec la participation de : © 2002 Waterloo Mathematics'�DUCATION en MATH�MATIQUES et en INFORMATIQUE The CENTRE for EDUCATION in MATHEMATICS and COMPUTING Sybase Inc

Le Roy, Robert J.

291

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in MathematicsAnywhere Solutions C.M.C. Supporters: Canadian Institute of Actuaries Maplesoft c 2006Waterloo Mathematics Foundation #12;Competition Organization Organisation du Concours Centre for Education in Mathematics

Le Roy, Robert J.

292

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of The Centre for Education in Mathematics : © 2003 Waterloo Mathematics Foundation Concours Cayley (10 année ­ Sec. IV) Cayley Contest (Grade 10 in MATHEMATICS and COMPUTING Sybase Inc. (Waterloo) iAnywhere Solutions Great West Life and London Life London

Le Roy, Robert J.

293

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics.M.C. Supporter c 2008 Centre for Education in Mathematics and Computing #12;Competition Organization Organisation du Concours Centre for Education in Mathematics and Computing Faculty and Staff / Personnel du Centre

Le Roy, Robert J.

294

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics Maplesoft c 2006Waterloo Mathematics Foundation #12;Competition Organization Organisation du Concours Centre for Education in Mathematics and Computing Faculty and Staff / Personnel du Centre d'´education en math

Le Roy, Robert J.

295

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics.M.C. Sponsors Chartered Accountants C.M.C. Supporter c 2008 Centre for Education in Mathematics and Computing #12;Competition Organization Organisation du Concours Centre for Education in Mathematics

Le Roy, Robert J.

296

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics´ee ­ Sec. V) Avec la contribution de: Avec la participation de: c 2009 Centre for Education in Mathematics and Computing #12;Competition Organization Organisation du Concours Centre for Education in Mathematics

Le Roy, Robert J.

297

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics in Mathematics and Computing #12;Competition Organization Organisation du Concours Centre for Education in Mathematics and Computing Faculty and Staff / Personnel du Centre d'´education en math´ematiques et

Le Roy, Robert J.

298

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of The Centre for Education in Mathematics the Awards Le CENTRE d'�DUCATION en MATH�MATIQUES et en INFORMATIQUE The CENTRE for EDUCATION in MATHEMATICS participation de : Sybase, Inc. (Waterloo) Sybase, inc (Waterloo) © 2001 Waterloo Mathematics Foundation

Le Roy, Robert J.

299

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of The Centre for Education in Mathematics.M.C. Supporters: Avec la participation de : © 2004 Waterloo Mathematics Foundation Concours Cayley (10 année ­ Sec for EDUCATION in MATHEMATICS and COMPUTING Sybase Inc. (Waterloo) iAnywhere Solutions Great West Life and London

Le Roy, Robert J.

300

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics 2007 Waterloo Mathematics Foundation #12;Competition Organization Organisation du Concours Centre for Education in Mathematics and Computing Faculty and Staff / Personnel du Centre d'´education en math

Le Roy, Robert J.

301

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics.M.C. Sponsors Chartered Accountants C.M.C. Supporter c 2007 Waterloo Mathematics Foundation #12;Competition Organization Organisation du Concours Centre for Education in Mathematics and Computing Faculty and Staff

Le Roy, Robert J.

302

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics.M.C. Supporters: Avec la participation de : Canadian Institute of Actuaries Maplesoft c 2006 Waterloo Mathematics Foundation #12;Competition Organization Organisation du Concours Centre for Education in Mathematics

Le Roy, Robert J.

303

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics Results Euclid Contest 2010 R´esultats Concours Euclide c 2010 Centre for Education in Mathematics and Computing #12;Competition Organization Organisation du Concours Centre for Education in Mathematics

Le Roy, Robert J.

304

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of The Centre for Education in Mathematics Mathematics Foundation Chartered Accountants Sybase Inc. (Waterloo) iAnywhere Solutions Comptables agréés C Commentaires Barry A. Ferguson Director The Gauss Contests are the first in a series of mathematics contests

Le Roy, Robert J.

305

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in MathematicsAnywhere Solutions C.M.C. Supporters: Canadian Institute of Actuaries Maplesoft c 2006 Waterloo Mathematics Foundation #12;Competition Organization Organisation du Concours Centre for Education in Mathematics

Le Roy, Robert J.

306

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics´ee ­ Sec. V) c 2010 Centre for Education in Mathematics and Computing #12;Competition Organization Organisation du Concours Centre for Education in Mathematics and Computing Faculty and Staff / Personnel du

Le Roy, Robert J.

307

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

ERIC Educational Resources Information Center

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…

Wilkerson, Stephanie B.; Haden, Carol M.

2014-01-01

308

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

ERIC Educational Resources Information Center

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…

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

2014-01-01

309

Successful Therapy Must Eradicate Cancer Stem Cells DAVID DINGLI,a,b  

E-print Network

Successful Therapy Must Eradicate Cancer Stem Cells DAVID DINGLI,a,b FRANZISKA MICHOR a,c a Program, Massachusetts, USA Key Words. Hematopoiesis · Cancer · Cancer stem cell · Mathematical modeling · Therapy to a variety of mech- anisms, including the evolution of resistance and tumor progression. Cancer stem cells

310

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

ERIC Educational Resources Information Center

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…

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

2013-01-01

311

Innovative educational opportunities for women in stem: Research Internships in Science and Engineering (RISE)  

Microsoft Academic Search

A commonly known fact is the relatively small percentage of women represented in science, technology, engineering and mathematics (STEM) fields. This well documented but little understood phenomenon is a cause of great concern to STEM educators. Based on the available literature on barriers to women's success in STEM, an innovative educational intervention has been developed at the University of Maryland

Janet A. Schrnidt; Paige E. Smith; Kristen E. Vogt; Linda C. Schmidt

2003-01-01

312

7956 Structure of ideas in classic writings 8018 Generating knockout mice with gonadal stem cells  

E-print Network

7956 Structure of ideas in classic writings 8018 Generating knockout mice with gonadal stem cells Neural pheromone responses in lesbian women APPLIED MATHEMATICS Structure of ideas in classic writings Generating knockout mice with gonadal stem cells Stem cells possess a number of properties that make them at

Feschotte, Cedric

313

Noise-Driven Stem Cell and Progenitor Population Martin Hoffmann1  

E-print Network

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

Bernard, Samuel

314

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

ERIC Educational Resources Information Center

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…

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

2011-01-01

315

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

ERIC Educational Resources Information Center

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…

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

316

Understanding STEM Education and Supporting Students through Universal Design for Learning  

ERIC Educational Resources Information Center

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…

Basham, James D.; Marino, Matthew T.

2013-01-01

317

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

ERIC Educational Resources Information Center

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…

NGA Center for Best Practices, 2011

2011-01-01

318

Ocular microtremor in brain stem death  

PubMed

OBJECTIVE: This study was undertaken to establish whether measurement of ocular microtremor (OMT) activity could be used as a method to establish brain stem death. Presently, the diagnosis of brain stem death can be made using clinical criteria alone. OMT is a high-frequency, low-amplitude physiological tremor of the eye caused by impulses emanating from the brain stem. There have been a number of reports indicating that the recording of OMT may be useful in the assessment of comatose states and in establishing brain stem viability or death. METHODS: We obtained the OMT recordings of 32 patients suspected of having brain stem death using the piezoelectric strain gauge technique. This method involves mounting the piezoelectric probe in a headset and lowering the rubber-tipped end piece onto the anesthetized scleral surface of the subject. The signal produced is recorded on audiomagnetic tape and later played back and analyzed on an electrocardiographic tape analyzer. RESULTS: In 28 patients, initial clinical assessment confirmed the diagnosis of brain stem death and no OMT activity was recorded from these subjects. In three patients in whom initial clinical assessment demonstrated brain stem function, OMT activity was present; when brain stem death was subsequently diagnosed in these three patients, no OMT activity could be demonstrated. In the remaining patient, two of three OMT recordings demonstrated activity in spite of the absence of clinical evidence of brain stem function. A post mortem revealed bacterial cerebritis in this subject. CONCLUSION: The results suggest that OMT is a sensitive method of detecting brain stem life and that it could play an important role in the assessment of brain stem death. PMID:10371619

Bolger; Bojanic; Phillips; Sheahan; Coakley; Malone

1999-06-01

319

Elementary Pre-Service Teachers: Can They Experience Mathematics Teaching Anxiety without Having Mathematics Anxiety?  

ERIC Educational Resources Information Center

Elementary pre-service teachers report high levels of mathematics anxiety (MA), but the construct less widely addressed is their mathematics teaching anxiety (MTA). This study investigated the frequency with which MA stemming from prior experiences leads to MTA. Fifty-three elementary pre-service teachers' written reflections were analyzed, using…

Brown, Amy Bingham; Westenskow, Arla; Moyer-Packenham, Patricia S.

2011-01-01

320

Cell Stem Cell Stem Cell States, Fates,  

E-print Network

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

Peterson, Carsten

321

Stem cells, cancer, and cancer stem cells  

Microsoft Academic Search

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

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

2001-01-01

322

S.O.S. Mathematics  

NSDL National Science Digital Library

S.O.S. MATHematics is a collection of review materials for math subjects. The material includes important results, techniques and formulas in college and pre-college mathematics. Self-testing units are presented in worksheet format and require active participation.

2003-10-10

323

Global Problems in Mathematical Relativity  

E-print Network

____ 25 Global Problems in Mathematical Relativity Now, in contrast to Special Relativity, there are very definitely mathematical problems in General Relativity awaiting solution, and that was the topic of this programme. There are two approaches here: one may ask how this geometrically-based subject relates to other

324

Mathematics and English: Stereotyped Domains?  

ERIC Educational Resources Information Center

Questionnaires given to (n=187) ninth-grade students about their beliefs on mathematics and language arts found that males and females hold different attitudes concerning themselves as learners of mathematics and English and about causal attributions for success and failure in these subjects. (MKR)

Forgasz, Helen J.; Leder, Gilah C.

1996-01-01

325

MILLERSVILLE UNIVERSITY NSF-SUPPORTED STEM SCHOLARSHIP APPLICATION CHECK OFF  

E-print Network

, chemistry, computer science, earth sciences, mathematics, or physics ___ Have a high school GPA of at least in Science, Technology, Engineering, and Mathematics (S-STEM) APPLICATION CHECKLIST ___ Filed a Millersville President Other Council Officer Athletics (list sport) Honors and Awards #12;In the space below, please

Hardy, Christopher R.

326

Cell Stem Cell The Use of Fresh Embryos in Stem Cell Research  

E-print Network

of poor quality, can provide sources of human embryonic stem cell lines. We consider why some donate to augment the availability and diversity of the pool of human embryonic stem cell (hESC) lines ever since developed new hESC lines on feeder cells not subject to contamination by animal viruses in order to avoid

327

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

E-print Network

, 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

Zandstra, Peter W.

328

Incorporating Engineering Design Challenges into STEM Courses  

ERIC Educational Resources Information Center

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…

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

2012-01-01

329

Siemens Foundation and the STEM Challenge  

ERIC Educational Resources Information Center

For more than 12 years, the Siemens Foundation has found unique ways to partner with organizations to support educational initiatives in science, technology, engineering and mathematics (STEM) in the United States. Its focus is clear--to educate the next generation of innovators by supporting math and science education from grade school to grad…

Harper-Taylor, Jeniffer

2010-01-01

330

STEM: The 21st Century Sputnik  

ERIC Educational Resources Information Center

The author of this article argues that, just as Americans were shocked into action, when the Soviet Union launched Sputnik in 1957, by strengthening STEM (science, technology, engineering, and mathematics) in the educational curriculum, Americans must be shocked again. The nation must address the failure of its leaders to provide adequate funding…

Garrett, Joyce Lynn

2008-01-01

331

Lego Robotics: STEM Sport of the Mind  

ERIC Educational Resources Information Center

Lego robotics is engaging, hands-on, and encompasses every one of the NETS for Students. It also inspires a love of science, technology, engineering, and mathematics (STEM) and provides the experience students need to use digital age skills in the real world. In this article, the author discusses how schools get involved with Lego Robotics and…

Gura, Mark

2012-01-01

332

Perfectionism and Performance among STEM Students  

ERIC Educational Resources Information Center

We examined perfectionistic personality characteristics and their association with science self-efficacy beliefs and academic performance among college students in science, technology, engineering, and mathematics (STEM). We were especially interested in gender differences in effects given that women remain significantly underrepresented in…

Rice, Kenneth G.; Lopez, Frederick G.; Richardson, Clarissa M. E.

2013-01-01

333

Recruiting and Hiring Women in STEM Fields  

Microsoft Academic Search

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

Christy Glass; Krista Lynn Minnotte

2010-01-01

334

STEM Gets a Boost from Business  

ERIC Educational Resources Information Center

STEM--science, technology, engineering, and mathematics--has become a fixture of the education debate, and much effort already has been put toward improving student performance. Yet troubling statistics persist: On the latest round of testing for the National Assessment of Educational Progress (NAEP), only 40 percent of fourth graders nationwide…

Rosen, Linda

2012-01-01

335

Stem Cells  

Microsoft Academic Search

\\u000a To fully understand the biological meaning of the term stem cell (SC) it is useful to clarify the derivation of the root staminal, even though modern research published in English-speaking journals never seem to use the term staminal. While there are\\u000a no doubts that the term SC originated in the context of two major embryological questions, the continuity of the

Manuela Monti; Carlo Alberto Redi

336

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

ERIC Educational Resources Information Center

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,…

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

2014-01-01

337

Science: Embryos and Stem Cells  

NSDL National Science Digital Library

It's quite easy to stay abreast of all the developments within the world of embryos and stem cell research with this handy site created and maintained by staff members at the Guardian newspaper. On their page, visitors can read news reports from the frontlines of scientific research in these areas, and also check out the latest posts from the weblogs they maintain on these matters. Further down the page, visitors will find a selection of specialized reports on both stem cell research and the manipulation and transformation of embryos. Visitors can also sign up to receive an RSS feed and even learn about related subjects, including genetics and biotechnology.

2008-06-04

338

CANADIAN APPLIED MATHEMATICS QUARTERLY  

E-print Network

Nile virus and Lyme disease, are transmitted indirectly to the host population by AMS subjectCANADIAN APPLIED MATHEMATICS QUARTERLY Volume 19, Number 3, Fall 2011 GLOBAL DYNAMICS OF A DISEASE. An infectious disease model with two dis- tributed delays is proposed to incorporate both the latency

Shuai, Zhisheng

339

Mathematical Caring Relations: A Challenging Case  

ERIC Educational Resources Information Center

Developed from Noddings's (2002) care theory, von Glasersfeld's (1995) constructivism, and Ryan and Frederick's (1997) notion of subjective vitality, a mathematical caring relation (MCR) is a quality of interaction between a student and a mathematics teacher that conjoins affective and cognitive realms in the process of aiming for mathematical

Hackenberg, Amy

2010-01-01

340

Expanding your horizons in science and mathematics  

NASA Technical Reports Server (NTRS)

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.

Palmer, Cynthia E. A.

1995-01-01

341

Reconceptualizing Knowledge at the Mathematical Horizon  

ERIC Educational Resources Information Center

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…

Zazkis, Rina; Mamolo, Ami

2011-01-01

342

School Of Mathematics and Statistics Single Honours Mathematics  

E-print Network

1 School Of Mathematics and Statistics Single Honours Mathematics BSc Mathematics MMath Mathematics BSc Financial Mathematics MMath Mathematics with French Language MMath Mathematics with German Language MMath Mathematics with Spanish Language BSc Mathematics with Study in Europe MMath Mathematics

343

34 CFR 300.10 - Core academic subjects.  

Code of Federal Regulations, 2010 CFR

... § 300.10 Core academic subjects. Core academic subjects means English, reading or language arts, mathematics, science, foreign languages, civics and government, economics, arts, history, and geography. (Authority: 20...

2010-07-01

344

Rethinking Mathematics.  

ERIC Educational Resources Information Center

Poses solutions for our failure to show students how well mathematics interlocks with the physical structures of the Universe. Some examples are provided to illustrate the natural integration of mathematics and science. (ZWH)

Abad, Ernesto A.

1994-01-01

345

Mathematics disorder  

MedlinePLUS

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

346

Stem Cells and Diseases  

MedlinePLUS

... U.S. policy? More FAQs Links to related resources Stem Cell Research Center for Regenerative Medicine NIH Stem Cell Unit ... Help My Medical Condition? The International Society for Stem Cell Research (ISSCR) —ISSCR has developed information to help you ...

347

Stem Cell Transplants  

MedlinePLUS

What Are Stem Cells? As you probably remember from biology class, every living thing is made up of cells — including the human body. ... can become new cells like this. Blood Stem Cells When you hear about stem cell transplants, they ...

348

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics and Computing #12;Competition Organization Organisation du Concours Centre for Education in Mathematics Schurter Carolyn Sedore Ian VanderBurgh Troy Vasiga 2 #12;Competition Organization Organisation du Concours

Le Roy, Robert J.

349

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics in Mathematics and Computing #12;Competition Organization Organisation du Concours Centre for Education;Competition Organization Organisation du Concours Problems Committees / Comit´es des probl`emes Pascal Contest

Le Roy, Robert J.

350

Mathematics Competition  

E-print Network

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics´ee ­ Sec. V) c 2010 Centre for Education in Mathematics and Computing #12;Competition Organization;Competition Organization Organisation du Concours Problems Committees / Comit´es des probl`emes Pascal Contest

Le Roy, Robert J.

351

Inside Mathematics  

NSDL National Science Digital Library

This multimedia website assists teachers, principals, and school district leadership by providing professional resources for educators. Inside Mathematics provides tested demonstration lessons presented to children and groups of observing teachers; guided tours of reflective mathematics practice; and mathematics teaching and learning tools and resources to support classroom teachers', math coaches', and administrators' daily practices.

2012-01-01

352

What mathematics courses are there? Mathematics  

E-print Network

Essentials What mathematics courses are there? MMath Mathematics Mathematics with Economics Mathematics with Physics BSc Mathematics Mathematics with Economics Mathematics with Physics Foundation year for UK and EU students Mathematics degrees (with a foundation year) Foundation year for non-EU students

Sussex, University of

353

Qualifying Exam Guidelines for the Developmental, Regenerative and Stem Cell Biology General Knowledge Exam  

E-print Network

Qualifying Exam Guidelines for the Developmental, Regenerative and Stem Cell Biology Program. General Knowledge Exam The Developmental, Regenerative and Stem Cell Biology (DRS) Program's General different faculty members on the following four subjects: Developmental Biology, Genetics, Cell Biology

Gereau, Robert W. IV

354

Stem Up  

NSDL National Science Digital Library

Stem Up is a pilot program to aid the disadvantaged youth of Boyle Heights in Los Angeles. The intent of the program was to integrate STEM career pathways into schools and local communities. Visitors will find the K-12 Students tab near the top of the page to be filled with almost two dozen links for all levels of student learning about science and technology. Some of the sites include "Arrick Robotics", for 9-12 graders, "Extreme Science", for all ages, and "Fun Engineering" for kids aged 10-14. The "Boyle Heights" link is a great resource for residents of the LA neighborhood, as well as informative for those visitors unfamiliar with it. There is full contact information for the city and state representatives of the neighborhood, the Police Activities League, and a live theatre that performs outreach through theatre, and classical plays. The "Parents" link also provides a number of science and technology links that parents and kids can visit together.

355

Secondary Mathematics Teacher Certification Requirements Mathematics  

E-print Network

Secondary Mathematics Teacher Certification Requirements Mathematics Undergraduate Program:______________ Date:______________ Date:______________ Date:______________ MATHEMATICS CORE REQUIREMENTS MATH 151 Introduction to Mathematical Analysis I CMSC 201 Computer Science I MATHEMATICS EDUCATION CONCENTRATION

Maryland, Baltimore County, University of

356

Science, Technology, Engineering, and Mathematics Talent Expansion Program (STEP)  

NSDL National Science Digital Library

The Science, Technology, Engineering, and Mathematics Talent Expansion Program (STEP) seeks to increase the number of students (U.S. citizens or permanent residents) receiving associate or baccalaureate degrees in established or emerging fields within science, technology, engineering, and mathematics (STEM). Type 1 proposals are solicited that provide for full implementation efforts at academic institutions. Type 2 proposals are solicited that support educational research projects on associate or baccalaureate degree attainment in STEM.

Foundation, National S.

2008-05-19

357

Mathematical Optimization  

NSDL National Science Digital Library

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.

Leske, Cavin.

358

Latina and European American Girls’ Experiences with Academic Sexism and their Self-Concepts in Mathematics and Science During Adolescence  

E-print Network

patterns of gender differences in mathematics A meta-Gender Differences in STEM Achievement and Self-Concepts Historically, girls have underperformed relative to boys in science, technology, engineering, and mathematics.

Brown, Christia Spears; Leaper, Campbell

2010-01-01

359

[Secondary Career Education Activities: Mathematics.  

ERIC Educational Resources Information Center

The guide is one of a series developed in a pilot project to integrate career education concepts with subject matter in secondary grades. The units are designed to reveal career orientation aspects of traditional topics within five major subject areas: English, social studies, mathematics, science, and health and physical education. The lesson…

Radford City Schools, VA.

360

Does CAS Use Disadvantage Girls in VCE Mathematics?  

ERIC Educational Resources Information Center

In 2009, four mathematics subjects were offered at the year 12 level in the Victorian Certificate of Education (VCE). The two subjects at the intermediate level--Mathematical Methods and Mathematical Methods CAS--run in parallel, that is, a student can be enrolled in only one or the other, the choice being made at the school level. The curricular…

Forgasz, Helen; Tan, Hazel

2010-01-01

361

Students attitude towards calculus subject: Bumiputera case-study  

NASA Astrophysics Data System (ADS)

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.

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

2013-04-01

362

The Typologies of Successful and Unsuccessful Students in the Core Subjects of Language Arts, Mathematics, Science, and Social Studies Using the Theory of Multiple Intelligences in a High School Environment in Tennessee.  

ERIC Educational Resources Information Center

The purpose of this research was to use a Tennessee high school as a research site to assess the impact of H. Gardner's Multiple Intelligences (MI) on students' academic successes in 10th grade English, social studies, mathematics, and science classes. The research used a two-part minimally intrusive data collection protocol. The student…

Smith, Wade; Odhiambo, Eucabeth; El Khateeb, Hebatella

363

International Mathematics Education  

E-print Network

International Mathematics Education Masters Programme www.uni-bremen.de/international-mathematics-education Professional Development for Mathematics Teachers in International Schools International school mathematics in International Mathematics Education. The programme combines foci in mathematics, education and international

Hoffmeister, Thomas S.

364

Science Mathematics Engineering  

E-print Network

Science Mathematics Engineering . ­ p.1 #12;Science Mathematics Engineering Science, Computer `Science', . ­ p.1 #12;Science Mathematics Engineering Science, Computer `Science', Mathematics, . ­ p.1 #12;Science Mathematics Engineering Science, Computer `Science', Mathematics, and Software Development

Hamlet, Richard

365

Mathematics & Degree options  

E-print Network

132 Mathematics & Statistics Degree options MMath (Single Honours Degrees) Mathematics Applied Mathematics Pure Mathematics Statistics BSc or MA (Single Honours Degrees) Mathematics Statistics [If you wish (Joint Honours Degrees) Mathematics and one of: Biology Chemistry Computer Science Economics Geography

Brierley, Andrew

366

Nonlinear Growth Kinetics of Breast Cancer Stem Cells: Implications for Cancer Stem Cell Targeted Therapy  

NASA Astrophysics Data System (ADS)

Cancer stem cells (CSCs) have been identified in primary breast cancer tissues and cell lines. The CSC population varies widely among cancerous tissues and cell lines, and is often associated with aggressive breast cancers. Despite of intensive research, how the CSC population is regulated within a tumor is still not well understood so far. In this paper, we present a mathematical model to explore the growth kinetics of CSC population both in vitro and in vivo. Our mathematical models and supporting experiments suggest that there exist non-linear growth kinetics of CSCs and negative feedback mechanisms to control the balance between the population of CSCs and that of non-stem cancer cells. The model predictions can help us explain a few long-standing questions in the field of cancer stem cell research, and can be potentially used to predict the efficicacy of anti-cancer therapy.

Liu, Xinfeng; Johnson, Sara; Liu, Shou; Kanojia, Deepak; Yue, Wei; Singn, Udai; Wang, Qian; Wang, Qi; Nie, Qing; Chen, Hexin

2013-08-01

367

Students with ‘Special Rights’ for Mathematics Education  

Microsoft Academic Search

\\u000a The chapter draws attention to the need for equitable access to quality mathematics education for students with ‘special rights’.\\u000a These special rights stem from the fact that students who are visually or hearing impaired, or who have Down syndrome or other\\u000a intellectual or physical impairments, historically have not had access to high-quality mathematics education. Included in\\u000a this group with special

Ann Gervasoni; Lena Lindenskov

368

Rotatable stem and lock  

DOEpatents

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.

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

1981-10-27

369

Rotatable stem and lock  

DOEpatents

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.

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

1984-01-01

370

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

ERIC Educational Resources Information Center

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…

DiFrancesca, Daniell; Lee, Carrie; McIntyre, Ellen

2014-01-01

371

Title of paper: Grant-Writing Resources: Supporting Women Faculty in STEM through Author: Elizabeth A. Burroughs  

E-print Network

Title of paper: Grant-Writing Resources: Supporting Women Faculty in STEM through Mentoring. Author. But with women comprising just over 20% of faculty members in the mathematical sciences and in STEM fields network, both of which provide mentoring and other resources for women faculty in STEM. I will highlight

Dyer, Bill

372

Chinese Mathematics  

NSDL National Science Digital Library

The School of Mathematics and Statistics at the University of St. Andrews Scotland offers this website on the history of Chinese Mathematics. Key features highlighted in the overview include: a discussion of the Chinese version of Pythagoras's theorem, a famous Chinese mathematics book commonly known as the Nine Chapters on the Mathematical Art, and the work of several Chinese mathematicians. Visitors to the website can also browse a chronological listing of several Chinese mathematicians and read about their careers. Other features of the website include a section summarizing each chapter from the Nine Chapters on the Mathematical Art, a section highlighting ten other mathematical classics, a review of the Chinese numeral system, and a collection of Chinese problems, which are extracted from various articles in their archive.

373

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.

374

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

E-print Network

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

Keinan, Alon

375

The Mathematics and Science Partnerships (MSP) program is  

E-print Network

, and math (STEM) faculty in institutions of higher education are at the core of these improvement efforts in mathematics by o developing grade 3-8 teachers' mathematical understanding of Common Core content, o enhancing Research for Better Schools (RBS) will conduct an evaluation study to ensure the effectiveness of CNJ

Garfunkel, Eric

376

Mathematical Techniques in the Evolutionary Epidemiology of Infectious Diseases  

E-print Network

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

Linder, Tamás

377

Stem cell self-renewal in intestinal crypt  

SciTech Connect

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.

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

378

Technical Mathematics.  

ERIC Educational Resources Information Center

This manuscript provides information and problems for teaching mathematics to vocational education students. Problems reflect applications of mathematical concepts to specific technical areas. The materials are organized into six chapters. Chapter 1 covers basic arithmetic, including fractions, decimals, ratio and proportions, percentages, and…

Flannery, Carol A.

379

Mathematics Scrapbook  

ERIC Educational Resources Information Center

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…

Prochazka, Helen

2004-01-01

380

Vaccination Mathematics  

E-print Network

Vaccination Strategies for Epidemic Models Douglas B. Meade Department of Mathematics University://www.math.sc.edu/~meade/ 27 May 1999 #12; May 1999 IMA Mathematical Biology Seminar 0 Vaccination Strategies for Epidemic and natural death -- no death from infection -- no vaccination Ref: Shulgin, Stone, and Agur, Bull Math Bio

Meade, Douglas B.

381

Nonlocal Mathematics  

Microsoft Academic Search

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.

Mukul Patel

2000-01-01

382

Mathematics Education.  

ERIC Educational Resources Information Center

The focus of this special issue is mathematics education. All articles were written by graduates of the new masters Degree program in which students earn a Master of Arts degree in Education with a concentration in Mathematics Education at San Francisco State University. Articles include: (1) "Developing Teacher-Leaders in a Masters Degree Program…

Langbort, Carol, Ed.; Curtis, Deborah, Ed.

2000-01-01

383

Mathematics Competition  

E-print Network

is (A) 10 (B) 20 (C) 30 (D) 40 (E) 50 dog rabbit bird cat fish 0 10 20 30 40 50 Favourite Pet60 NumberofCanadian Mathematics Competition An activity of the Centre for Education in Mathematics at Gauss Public School were asked, "What is your favourite pet?" The number of students who chose fish

Le Roy, Robert J.

384

Illustrative Mathematics  

NSDL National Science Digital Library

Illustrative Mathematics provides guidance to states, assessment consortia, testing companies, and curriculum developers by illustrating the range and types of mathematical work that students experience in a faithful implementation of the Common Core State Standards, and by publishing other tools that support implementation of the standards.

2013-01-04

385

Designing Technology Activities that Teach Mathematics  

ERIC Educational Resources Information Center

Over the past three years, the authors have conducted research in middle and high school classrooms in an effort to improve the effectiveness of robotics to teach science, technology, engineering, and mathematics (STEM) education--their focus has been on math. The authors have found that subtle changes in the design and setup of the lesson make a…

Silk, Eli M.; Higashi, Ross; Shoop, Robin; Schunn, Christian D.

2010-01-01

386

The USDOE Mathematics and Science Partnerships (MSP)  

E-print Network

, and math (STEM) faculty in institutions of higher education are at the core of these improvement efforts elementary teachers' mathematical understanding of Common Core content; o enhancing participating teachers at Rutgers University. External Evaluation Research for Better Schools (RBS) will conduct an evaluation study

Garfunkel, Eric

387

Making Insulation Decisions through Mathematical Modeling  

ERIC Educational Resources Information Center

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…

Yanik, H. Bahadir; Memis, Yasin

2014-01-01

388

The Effects of Constructivist Learning Environment on Prospective Mathematics Teachers' Opinions  

ERIC Educational Resources Information Center

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…

Narli, Serkan; Baser, Nes'e

2010-01-01

389

Numerical Methods for the STEM Undergraduate  

NSDL National Science Digital Library

This site features materials for a course in numerical methods for undergraduate students in science, technology, engineering, and mathematics (STEM). These items include textbook notes, slide presentations, videos, simulations, and assessment materials. They are organized by topic: nonlinear equations, simultaneous linear equations, interpolation, integration, ordinary differential equations, and regression. There is also an online version of the textbook "Numerical Methods with Applications." These resources are presented in downloadable, printable formats, and other items will be added as the web site continues to develop.

Autar Kaw, Principal Investigator

390

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

E-print Network

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...

Keil, Matthew James

2014-04-09

391

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

ERIC Educational Resources Information Center

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

Peters, Michelle L.

2013-01-01

392

Transplanting stem cells: Potential targets for immune attack. Modulating the immune response against embryonic stem cell transplantation  

Microsoft Academic Search

The curative promise of stem cells and their descendants for tissue regeneration and repair is currently the subject of an intense research effort worldwide. If it proves feasible to differentiate stem cells into specific tissues reliably and safely, this approach will be invaluable in the treatment of diseases that lead to organ degeneration or failure, providing an alternative or supplementary

Ashleigh S. Boyd; Yasuyuki Higashi; Kathryn J. Wood

2005-01-01

393

MATHEMATICS: RETHINKING THE TRANSITION  

E-print Network

SENIOR SECONDARY MATHEMATICS: RETHINKING THE TRANSITION BILL BARTON THE UNIVERSITY OF AUCKLAND, NZ #12;THE ENVISIONING PROJECT · Mathematics education project of NZIMA (New Zealand Institute of Mathematics & Its Applications--the mathematics research funding body). · Brought together mathematics

Peters, Achim

394

Mathematics Department Millersville University  

E-print Network

1 Mathematics Department Millersville University Master of Education in Mathematics (M.Ed.) #12;2 MASTER OF EDUCATION DEGREE IN MATHEMATICS Contents 1. Introduction ......................................................................................................2 a. Millersville University b. The Mathematics Department c. The Field of Mathematics Education Two

Hardy, Christopher R.

395

STEM Learning Quality Indicator Map  

E-print Network

STEM Learning Quality Indicator Map Quality Indicator Initiation Involvement Implementation Innovation Student Engagement STEM learning experiences are engaging and inspire creativity and imagination STEM learning experience is activity driven with specific step by step directions STEM learning

US Army Corps of Engineers

396

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

397

House of Commons Select Committee Enquiry into Women in STEM careers  

E-print Network

House of Commons Select Committee ­ Enquiry into Women in STEM careers Written response from departments, but also to the under-recruitment of women in those STEM subjects for which Physics% of research staff are in science and medical sciences. Question 1: Why do numbers of women in STEM academic

398

UW Summer STEM Undergraduate  

E-print Network

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

Kaminsky, Werner

399

Research-Infused STEM Reform at South Carolina State University  

NASA Astrophysics Data System (ADS)

South Carolina State University (SCSU) has embarked upon a mission to transform its science, technology, engineering, and mathematics (STEM) disciplines by offering more scholarships to students talented in the sciences, by introducing advanced topics in the introductory STEM courses, and by expanding research opportunities for STEM students. Specific examples will be provided from physics and astronomy. Program accomplishments after one year of operation will be highlighted, along with the difficulties of instituting such a broad-based reform. NSF HBCU-UP Award #0506062

Smith, Daniel M., Jr.; Anderson, J. A.; Adzievski, K.

2006-12-01

400

Hematopoietic Stem Cell Transplantation  

Microsoft Academic Search

\\u000a The purpose of hematopoietic stem cell transplantation (HSCT) is to replace diseased, damaged, or absent hematopoietic stem\\u000a cells (HSCs) with healthy HSCs. In general, allogeneic transplants are used when the hematopoietic stem cells are diseased\\u000a (e.g., leukemia), damaged (e.g., sickle cell disease), or absent (e.g., severe immunodeficiency disease). Autologous transplants\\u000a are used to provide stem cell rescue after higher doses

Robbie Norville; Deborah Tomlinson

401

Mathematics Illuminated  

NSDL National Science Digital Library

Everything (mathematics) is illuminated in this excellent thirteen-part series created by Annenberg Media for adult learners and high school teachers. As their website notes, the series "explores major themes in the field of mathematics, from humankind's earliest study of prime numbers, to the cutting-edge mathematics used to reveal the shape of the universe." First-time visitors can read a brief introduction to the series, and then look over some of the thirteen units, which include "Game Theory", "Other Dimensions", and "Geometries Beyond Euclid". Each unit includes a relevant video segment (free registration required), a video transcript, and a different interactive feature designed to complement the material within. Also, visitors can take advantage of a glossary and a "Math Family Tree", which highlights major mathematical discoveries from the year 25000 BCE to present-day Fields Medal winner, Grigori Perelman.

2008-01-01

402

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

403

Stem Cell Basics  

MedlinePLUS

... U.S. policy? More FAQs Links to related resources Stem Cell Research Center for Regenerative Medicine NIH Stem Cell Unit ... of scientific research, and the potential use of stem cells in research and in treating disease. The primer includes information ...

404

Understanding Embryonic Stem Cells  

NSDL National Science Digital Library

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.

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

2008-04-10

405

STEM Bridge Scholarship Program  

E-print Network

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

Buehrer, R. Michael

406

Mapping Curriculum Innovation in STEM Schools to Assessment Requirements: Tensions and Dilemmas  

ERIC Educational Resources Information Center

Specialized science, technology, engineering, and mathematics (STEM) schools create niche areas in an attempt to attract the best students, establish the school status, and justify their privilege to valuable resources. One Singapore STEM school does this in applied science learning to differentiate its curriculum from the national prescribed…

Tan, Aik-Ling; Leong, Woon Foong

2014-01-01

407

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

ERIC Educational Resources Information Center

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…

New Teacher Project, 2010

2010-01-01

408

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

ERIC Educational Resources Information Center

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…

Wang, Xueli

2013-01-01

409

Examining Fidelity of Program Implementation in a STEM-Oriented Out-of-School Setting  

ERIC Educational Resources Information Center

In the United States and many other countries there is a growing emphasis on science, technology, engineering and mathematics (STEM) education that is expanding the number of both in-school and out-of-school instructional programs targeting important STEM outcomes. As instructional leaders increasingly train teachers and facilitators to undertake…

Barker, Bradley S.; Nugent, Gwen; Grandgenett, Neal F.

2014-01-01

410

Project Kaleidoscope 2.0: Leadership for Twenty-First Century STEM Education  

ERIC Educational Resources Information Center

It has been over twenty years since the publication of reports calling for increased efforts to reform undergraduate STEM (science, technology, engineering, and mathematics) education. There are more STEM classrooms today that utilize "pedagogies of engagement" than there were twenty years ago; however, these kinds of learning environments are…

Elrod, Susan

2010-01-01

411

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

ERIC Educational Resources Information Center

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.…

Eagan, Mark Kevin, Jr.

2010-01-01

412

The Nature of Experiences Responsible for the Generation and Maintenance of Interest in STEM  

ERIC Educational Resources Information Center

Previous research has established the importance of early interest in STEM as a key factor in persistence. Our current research builds on this foundation and extends it to add more detail to understanding the types of experiences that trigger and maintain interest in science, technology, engineering, and mathematics (STEM). Using survey data from…

Maltese, Adam V.; Melki, Christina S.; Wiebke, Heidi L.

2014-01-01

413

Personalised Learning Spaces and Federated Online Labs for STEM Education at School  

E-print Network

Personalised Learning Spaces and Federated Online Labs for STEM Education at School Supporting online laboratories (Labs) for education in Science, Technology, Engineering, and Mathematics (STEM, and virtual models referred to hereafter as online labs for large-scale use in education. Go-Lab enables

Paris-Sud XI, Université de

414

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

ERIC Educational Resources Information Center

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…

Strawn, Clare; Livelybrooks, Dean

2012-01-01

415

An Exploratory Study of Factors Influencing the Development of STEM Graduate Students' Teaching Skills  

ERIC Educational Resources Information Center

Graduate students in the sciences, technology, engineering, and mathematics (STEM) fields, represent an important link in current reforms emphasizing inquiry-based learning and teaching, as they represent the future of the STEM professoriate. Although graduate students commonly hold teaching assistantships, they rarely receive training on how to…

Gilmore, Joanna; Hurst, Melissa

2010-01-01

416

A Place for Art and Design Education in the STEM Conversation  

ERIC Educational Resources Information Center

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…

Bequette, James W.; Bequette, Marjorie Bullitt

2012-01-01

417

A GRE Test for the STEM Disciplines: Developing an Assessment "of" and "for" Learning  

ERIC Educational Resources Information Center

Plans are described for creating a Graduate Record Examination (GRE) test for the STEM (science, technology, engineering, and mathematics) disciplines. Previous work showed that a quantitative measure for the STEM disciplines exacerbated group differences beyond those reflected in the current GRE General Test. A test development approach is…

Payne, David G.; Briel, Jacqueline B.; Hawthorn, John; Riedeburg, Karen

2006-01-01

418

Role of symmetric and asymmetric division of stem cells in developing drug resistance  

E-print Network

, it is imperative to have a good model of the underlying dynamics of cancer cells. One of the main ingre- dients that has been recently introduced into the rapidly growing pool of mathematical cancer models is stem cells models of drug resistance. In this work we incorporate the various possible ways in which a stem cell may

Levy, Doron

419

"Educate to Innovate": How the Obama Plan for STEM Education Falls Short. Backgrounder. No. 2504  

ERIC Educational Resources Information Center

President Obama's Educate to Innovate initiative has provided billions in additional federal funding for science, technology, engineering, and mathematics (STEM) education programs across the country. The Administration's recognition of the importance of STEM education-- for global competitiveness as well as for national security--is good and…

Burke, Lindsey M.; McNeill, Jena Baker

2011-01-01

420

The Senior High School Students' Learning Behavioral Model of STEM in PBL  

ERIC Educational Resources Information Center

The purpose of the study was to explore a learning behavioral model of project-based learning (PBL) for senior high school students in the context of STEM (science, technology, engineering, and mathematics). Using "audio speakers" as the project theme, a series of tasks were designed to be solved using STEM knowledge via an online platform and…

Lou, Shi Jer; Liu, Yi Hui; Shih, Ru Chu; Tseng, Kuo Hung

2011-01-01

421

Gender Matters: An Examination of Differential Effects of the College Experience on Degree Attainment in STEM  

ERIC Educational Resources Information Center

Although more women than men are enrolled in college within the United States, women remain underrepresented in critical areas of study such as science, technology, engineering, and mathematics (STEM). This is particularly concerning given that STEM fields of study are vital to the economic growth and workforce development within the United…

Gayles, Joy Gaston; Ampaw, Frim D.

2011-01-01

422

Advanced placement math and science courses: Influential factors and predictors for success in college STEM majors  

Microsoft Academic Search

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. Although research studies offer several contributing factors that

Cynthia Colon Hoepner

2010-01-01

423

Who Succeeds in STEM Studies? An Analysis of Binghamton University Undergraduate Students  

ERIC Educational Resources Information Center

Using student level data, the characteristics of STEM and Non-STEM students are examined for attributes associated with academic success. We use fixed effects models to analyze the variables' role in attaining graduation and college GPA and find preparation and ability, as evidenced by Advanced Placement course work, mathematical ability, gender,…

Kokkelenberg, Edward C.; Sinha, Esha

2010-01-01

424

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

ERIC Educational Resources Information Center

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

Griffith, Amanda L.

2010-01-01

425

The Influence of Female Social Models in Corporate STEM Initiatives on Girls' Math and Science Attitudes  

ERIC Educational Resources Information Center

The United States' Science, Technology, Engineering, and Mathematics (STEM) workforce is growing slower than in the past, in comparison to demand, and in comparison to other countries. Competitive talent conditions require the United States to develop a strong pipeline of STEM talent within its own citizens. Given the number of female college…

Medeiros, Donald J.

2011-01-01

426

Persistence of women and minorities in STEM field majors: Is it the school that matters?  

Microsoft Academic Search

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 pipeline for these two

Amanda L. Griffith

2010-01-01

427

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

ERIC Educational Resources Information Center

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.…

Hoepner, Cynthia Colon

2010-01-01

428

A Realistic Look at STEM and the Role of Community Colleges  

ERIC Educational Resources Information Center

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…

Hagedorn, Linda Serra; Purnamasari, Agustina Veny

2012-01-01

429

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

ERIC Educational Resources Information Center

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…

Rodgers, Kathy; Blunt, Shelly; Trible, Linda

2014-01-01

430

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

ERIC Educational Resources Information Center

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…

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

2013-01-01

431

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

ERIC Educational Resources Information Center

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.…

Capobianco, Brenda M.; Rupp, Madeline

2014-01-01

432

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

ERIC Educational Resources Information Center

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…

Choi, Kyong Mi

2014-01-01

433

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

ERIC Educational Resources Information Center

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

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

2013-01-01

434

Field Experience as the Centerpiece of an Integrated Model for STEM Teacher Preparation  

ERIC Educational Resources Information Center

The purpose of this study was to provide a descriptive account of one pathway for preparing high-quality STEM (science, technology, engineering, and mathematics) teachers for work in high-need urban schools. In this account, we discuss the supports that STEM majors need in learning how to think about the content that they know well, through an…

van den Kieboom, Leigh A.; McNew-Birren, Jill C.; Eckman, Ellen W.; Silver-Thorn, M. Barbara

2013-01-01

435

Increasing Middle School Student Interest in STEM Careers with Videos of Scientists  

ERIC Educational Resources Information Center

Students are making choices in middle school that will impact their desire and ability to pursue STEM careers. Providing middle school students with accurate information about STEM (Science, Technology, Engineering, Mathematics) careers enables them to make more knowledgeable choices about courses of study and career paths. Practical ways of…

Wyss, Vanessa L.; Heulskamp, Diane; Siebert, Cathy J.

2012-01-01

436

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

ERIC Educational Resources Information Center

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…

Israel, Maya; Maynard, Kathie; Williamson, Pamela

2013-01-01

437

The Common Topoi of STEM Discourse: An Apologia and Methodological Proposal, with Pilot Survey  

ERIC Educational Resources Information Center

In this article, the author proposes a methodology for the rhetorical analysis of scientific, technical, mathematical, and engineering (STEM) discourse based on the common topics (topoi) of this discourse. Beginning with work by Miller, Prelli, and other rhetoricians of STEM discourse--but factoring in related studies in cognitive linguistics--she…

Walsh, Lynda

2010-01-01

438

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

PubMed Central

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.

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

2014-01-01

439

TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY  

E-print Network

, January 21, 1998. 1991 Mathematics Subject Classification. Primary 03F07, 03F20, 03F05, 03H15, 68R10. Key also [15]). He refuses the concept that natural numbers are closed under simple arithmetical operations

Carbone, Alessandra

440

Mathematical Literacy Teachers: Can Anyone Be One?  

ERIC Educational Resources Information Center

In this case study, Mathematical Literacy teachers were interviewed and observed in the classroom in order to provide insight into the way this subject, relatively new in South African schools, is handled. The focus of this research was the instructional practice of these teachers specifically in terms of their mathematical knowledge regarding the…

Botha, Hanlie; Maree, Jacobus; Stols, Gerrit

2014-01-01

441

Mathematical Thinking: From Cacophony to Consensus  

ERIC Educational Resources Information Center

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…

Argyle, Sean F.

2012-01-01

442

PRISM: Principal Resources in Secondary Mathematics.  

ERIC Educational Resources Information Center

This document was developed as a resource for secondary mathematics educators. The supplemental guide is designed to help educators challenge their students and provide each student with learning experiences to help them achieve success. Chapters reflect the mathematics curriculum and within each subject, activities are listed in the common…

Oklahoma State Dept. of Education, Oklahoma City.

443

The Early Childhood Mathematics Education Revolution  

ERIC Educational Resources Information Center

Research Findings: We are in the midst of a revolution. Prior to the onset of the 21st century, mathematics education in the United States was deemphasized (Geary, 1996), and mathematics as an instructional subject has traditionally been considered above the preschool and kindergarten levels. However, the old regime--the knowledge and philosophies…

Hachey, Alyse C.

2013-01-01

444

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

E-print Network

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

Schladow, S. Geoffrey

445

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

PubMed Central

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

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

2006-01-01

446

Mathematical Perspectives  

SciTech Connect

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.

Glimm, J.

2009-10-14

447

Molecular imaging: the key to advancing cardiac stem cell therapy.  

PubMed

Cardiac stem cell therapy continues to hold promise for the treatment of ischemic heart disease despite the fact that early promising pre-clinical findings have yet to be translated into consistent clinical success. The latest human studies have collectively identified a pressing need to better understand stem cell behavior in humans and called for more incorporation of noninvasive imaging techniques into the design and evaluation of human stem cell therapy trials. This review discusses the various molecular imaging techniques validated to date for studying stem cells in living subjects, with a particular emphasis on their utilities in assessing the acute retention and the long-term survival of transplanted stem cells. These imaging techniques will be essential for advancing cardiac stem cell therapy by providing the means to both guide ongoing optimization and predict treatment response in humans. PMID:23561794

Chen, Ian Y; Wu, Joseph C

2013-08-01

448

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

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…

Shapiro, Casey Ann Eznekier

2011-01-01

449

Gravitropism in leafy dicot stems  

NASA Technical Reports Server (NTRS)

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.

Salisbury, F. B.

1984-01-01

450

Embryonic stem cells. Stem cell programs.  

PubMed

The availability of human embryonic stem cell lines provides an important tool for scientists to explore the fundamental mechanisms that regulate differentiation into specific cell types. When more is known about the mechanisms that govern these processes, human embryonic stem cells may be clinically useful in generating cell types that have been damaged or depleted by a variety of human diseases. The NIH is actively pursuing a variety of initiatives to promote this developing research field, while continuing and expanding its long-standing investment in adult stem cells and research. PMID:12738840

Zerhouni, Elias

2003-05-01

451

American Mathematical Society Books Online  

NSDL National Science Digital Library

The American Mathematical Society (AMS) was founded in 1888 in order to further mathematical research and scholarship. Since that time, they have embarked on a number of outreach programs designed to educate the public about the importance of various mathematical endeavors. In the past several years, they have been developing the AMS Books Online website, and it's quite a resource. The works were all originally published by the AMS, and they can be browsed by author or subject. The subject headings include analysis, general interest, logic and foundations, and number theory. Users can download individual chapters from each book, and there are currently over thirty books available on the site. Visitors should make sure and check back, as there are plans to add books to the site periodically.

2010-02-19

452

School of Mathematics `Studying Mathematics, the  

E-print Network

School of Mathematics `Studying Mathematics, the beautiful and intriguing language of the universe, opens doors' Dr Chris Good What difference will you make? #12;Contents Why study mathematics at Birmingham? 3 University mathematics: a breakdown 4­5 Programmes in the School of Mathematics 6 Years 1 and 2

Birmingham, University of

453

MATHEMATICS Mathematics, one of the oldest and  

E-print Network

MATHEMATICS Mathematics, one of the oldest and most basic disciplines, continues to address, and the use of satellites for communication. There are two broad categories of mathematics: (1) pure, or theoretical, mathematics and (2) applied, or practical, mathematics. Pure mathematicians usually obtain the Ph

454

Mathematical Fiction  

NSDL National Science Digital Library

Alex Kasman, Associate Professor in the College of Charleston Department of Mathematics, has compiled this list of Mathematical Fiction. The books and stories listed here may be of interest to teachers or anyone wanting to read about mathematics from a literary perspective. The collection is organized so that visitors can browse by medium (which includes 22 entries that are categorized as "Available Free Online"), genre, motif, or topic. Some motifs include Evil Mathematicians, Female Mathematicians, Insanity, Math as Beautiful/Exciting/Useful, and Math as Cold/Dry/Useless. Some examples of topics listed include Algebra/Arithmetic/Number Theory, Mathematical Physics, and Probability/Statistics. The category with by far the most entries is Science Fiction with Not Science-Fiction, Fantasy or Horror coming in at a close second. Visitors can also search the entire database, view entries by Title or Author or Year, or check out the 30 most recently added or modified entries. Each entry is followed by a sentence or two describing the article or book and some include a website link to the article or to Amazon.com for ordering information. Proceeds from sales made through the website go to the College of Charleston Department of Mathematics. This site is also reviewed in the December 3, 2004_NSDL MET Report_.

455

Mathematics 101: Reconsidering the Axioms  

ERIC Educational Resources Information Center

In this article, I present some "axioms" that relate to undergraduate mathematics education. When I first heard the word axiom, it was defined as a "self-evident truth"; but an axiom is not a truth, it is a subjective assumption on which an argument or proof can be based. My purpose in presenting these axioms is to stimulate debate about…

Begg, Andy

2011-01-01

456

Affective Productions of Mathematical Experience  

ERIC Educational Resources Information Center

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…

Walshaw, Margaret; Brown, Tony

2012-01-01

457

The Brevard County Mathematics Continuum.  

ERIC Educational Resources Information Center

GRADES OR AGES: K-6. SUBJECT MATTER: Mathematics. ORGANIZATION AND PHYSICAL APPEARANCE: Although the content is divided into seven skill levels, variations may be made in their use and two topics may be taught simultaneously. Each level is organized in two parts, the first having columns showing activities with examples, textual resources; and…

Brevard County Board of Public Instruction, Titusville, FL.

458

COURSES AND SUBJECTS TAUGHT IN ENGLISH  

E-print Network

chemistry (MA)· Physical and Mechanical Properties of Polymeric Materials unit operations, reactor characterization of Materials organic chemistry Physical chemistry Quantum Mechanics Surface ScienceCOURSES AND SUBJECTS TAUGHT IN ENGLISH a.y. 2013/2014 #12;school of MatheMatical, Physical

Robbiano, Lorenzo

459

Changing Embedded Student Attitudes within a Mathematical Setting  

ERIC Educational Resources Information Center

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.…

Collins, Ruth; Winnington, Darlene

2010-01-01

460

Students' Beliefs about Mathematics: A Three-Year Study.  

ERIC Educational Resources Information Center

Examined changes in students' beliefs about learning mathematics from first to fourth grade. Found that students had a narrow conception of the usefulness of mathematics, fairly accurate conceptions of their achievement by third grade, a tendency to like mathematics more as the subject became harder, and that students' opinion of group versus…

Kloosterman, Peter; And Others

1996-01-01

461

The Art of Teaching the Art of Applying Mathematics  

ERIC Educational Resources Information Center

This article (the 1971 Presidential Address to the Mathematical Association of U. K.) makes a plea that college teachers of mathematics should be better aware of the applications of mathematics in other subjects. As an example, the author describes the use of differential equations to solve certain vibrational problems in mechanical engineering.…

Lighthill, M. J.

1971-01-01

462

Enriching the Teaching of Biology with Mathematical Concepts  

ERIC Educational Resources Information Center

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…

Andersen, Janet

2007-01-01

463

Reproducibility of femoral offset following short stem and straight stem total hip arthroplasty.  

PubMed

Bone stock-preserving short stem prostheses have gained importance in total hip arthroplasty (THA) with the use of minimally invasive surgical procedures. Because of their metaphyseal fixation and their dependency on the calcar radius, it is unknown whether the femoral offset can be reproduced with the same accuracy following short stem vs standard stem THA. This study clarifies whether it is possible to restore the femoral offset using a short stem prosthesis (Fitmore; Zimmer, Warsaw, Indiana) compared with a conventional straight stem prosthesis (CLS; Zimmer) following minimally invasive implantation using an anterolateral approach. In a prospective, randomized, double-blinded study, 80 patients underwent THA using a short stem (SS group; n=40) or CLS implant (control group; n=40). Follow-up examinations were conducted 6 weeks postoperatively. Radiological and functional outcomes were measured. Subjective assessment of quality of life was evaluated using the Harris Hip Score (HHS), the Short Form 36-item health survey (SF-36), and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Pre- and postoperative comparison of the groups' change in offset showed no significant differences (SS group difference from pre- to postoperative, 6.1±6.5 mm; control group difference from pre- to postoperative, 6.5±7.1 mm; P=.93). Group comparison after 6 weeks revealed no significant differences in HHS, SF-36, or WOMAC. Based on these data, an equivalent reproducibility of the femoral offset was demonstrated following short stem and straight stem THA using a minimally invasive anterolateral approach. If the long-term results of short stems show a comparable survival, they represent a sensible alternative to standard stems. PMID:24992068

von Roth, Philipp; Perka, Carsten; Mayr, Hermann O; Preininger, Bernd; Ziebula, Friedrich; Matziolis, Georg; Hube, Robert

2014-07-01

464

Science Fiction Exhibits as STEM Gateways  

NASA Astrophysics Data System (ADS)

Women continue to hold less than a quarter of all STEM jobs in the United States, prompting many museums to develop programs and exhibits with the express goal of interesting young girls in scientific fields. At the same time, a number of recent museum exhibits have harnessed the popularity of pop culture and science fiction in order to interest general audiences in STEM subject matter, as well as using the exhibits as springboards to expand or shift mission goals and focus. Because science fiction appears to be successful at raising interest in STEM fields, it may be an effective way to garner the interest of young girls in STEM in particular. This research seeks to describe the ways in which museums are currently using science fiction exhibits to interest young girls in STEM fields and careers. Research focused on four institutions across the country hosting three separate exhibits, and included staff interviews and content analysis of exhibit descriptions, promotional materials, a summative evaluation and supplementary exhibit productions. In some ways, science fiction exhibits do serve young girls, primarily through the inclusion of female role models, staff awareness, and prototype testing to ensure interactives are attractive to girls as well as to boys. However, STEM appears to be underutilized, which may be partly due to a concern within the field that the outcome of targeting a specific gender could be construed as "stereotyping".

Robie, Samantha

465

Discovering and Developing Diverse STEM Talent: Enabling Academically Talented Urban Youth to Flourish  

ERIC Educational Resources Information Center

This article describes the work of the Illinois Mathematics and Science Academy[R] (IMSA). Three "case stories" of students from IMSA illuminate some of the: (1) challenges and opportunities inherent in igniting science, technology, engineering, and mathematics (STEM) talent in urban youth and ensuring their success; (2) principles for designing…

Marshall, Stephanie Pace; McGee, Glenn W.; McLaren, Eric; Veal, Catherine C.

2011-01-01

466

Are node-based and stem-based clades equivalent? Insights from graph theory  

E-print Network

mathematical models used to portray phylogenetic relationships among species and higher taxa: stem-based trees and node-based trees. Each model is a tree in the sense that is commonly used in mathematics; the difference between them lies in the biological...

Martin, Jeremy L.; Blackburn, David C.; Wiley, Edward O.

2010-11-08

467

Breaking It Down: Engineering Student STEM Confidence at the Intersection of Race/Ethnicity and Gender  

ERIC Educational Resources Information Center

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

Litzler, Elizabeth; Samuelson, Cate C.; Lorah, Julie A.

2014-01-01

468

Characteristics of Schools Successful in STEM: Evidence from Two States' Longitudinal Data  

ERIC Educational Resources Information Center

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…

Hansen, Michael

2014-01-01

469

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

ERIC Educational Resources Information Center

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:…

Galosy, Jodie A.; Gillespie, Nicole M.

2013-01-01

470

Social Equity and Access to a Philippine STEM School  

ERIC Educational Resources Information Center

Like most developing countries in the world, there is a huge gap in opportunities to access quality science education between students from the high- and low-socioeconomic strata of Philippine society. In establishing its own science, technology, engineering, and mathematics (STEM) high school, despite limited public funding in 1964, the…

Talaue, Frederick Toralballa

2014-01-01

471

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

ERIC Educational Resources Information Center

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)…

Tight, Malcolm

2012-01-01

472

STEM Strategies: Student Ambassadors and Equality in Higher Education  

ERIC Educational Resources Information Center

More skilled young people are urgently needed in science, technology, engineering and mathematics in the UK. This book indicates how policy can be developed to encourage young people to consider STEM careers. It challenges widely held assumptions about how role models help raise aspirations and support progression to Higher Education and asks…

Gartland, Clare

2014-01-01

473

Unraveling the Double Bind: Women of Color in STEM  

ERIC Educational Resources Information Center

In 1976, the challenges faced by women of color who pursue careers in science, technology, engineering, and mathematics (STEM) fields were first brought to national attention by Shirley M. Malcom, Paula Hall, and Janet Brown in a report titled "The Double Bind: The Price of Being a Minority Woman in Science." In commemoration of the 35th…

Harvard Educational Review, 2011

2011-01-01

474

The Postbaccalaureate Goals of College Women in STEM  

ERIC Educational Resources Information Center

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…

Cole, Darnell; Espinoza, Araceli

2011-01-01

475

Living-Learning Programs for Women in STEM  

ERIC Educational Resources Information Center

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…

Inkelas, Karen Kurotsuchi

2011-01-01

476

The ROOT and STEM of a Fruitful Business Education  

ERIC Educational Resources Information Center

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…

Badua, Frank

2015-01-01

477

Effective Access: Teachers' Use of Digital Resources in STEM Teaching  

ERIC Educational Resources Information Center

The Effective Access (EA) team conducted a limited, multi-level investigation of high school science, technology, engineering, and mathematics (STEM) educators and their use of digital objects. The team attempted to answer the following questions to identify teachers' unique needs in the digital library environment, to provide a better…

Hanson, Katherine; Carlson, Bethany

2005-01-01

478

Curricular and Pedagogical Imperatives for Fostering Effective STEM Teacher Preparation  

ERIC Educational Resources Information Center

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…

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

2013-01-01

479

Subject Description CURRICULAR SUBJECT LISTING BY SUBJECT NUMBER  

E-print Network

INTERNATIONAL BUSINESS 236 MANAGEMENT AND HUMAN RESOURCES 237 MARKETING 238 OPERATIONS AND TECHNOLOGY MANAGEMENT 239 REAL ESTATE AND URBAN LAND ECONOMICS 240 CIVIL AND ENVIRONMENTAL ENGINEERING 241 RISK MANAGEMENT 544 LIBRARY AND INFORMATION STUDIES 550 LINGUISTICS 551 LITERATURE IN TRANSLATION 600 MATHEMATICS 604

Wisconsin at Madison, University of

480

Stem Cell 101 What is a stem cell?  

E-print Network

and stem cells found in the skin generally form skin. However, some research suggests that certain adultStem 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

Minnesota, University of

481

Mathematical Snippets  

NSDL National Science Digital Library

This site, created by the Mathematics Department at Bellevue Community College in Bellevue, Washington, contains descriptions of six mathematical concepts: the Pythagorean Theorem, Archimedes' Tombstone, the Mobius Strip, the Koch Snowflake Curve, Plateau's Problem, and Counting to Infinity. Each snippet contains a very brief history and an explanation of the concept. Illustrations are used to convey the physical meaning and consequences of each concept. Plateau's Problem and Counting to Infinity contain links to web sites that provide additional information about persons or concepts mentioned in the snippet.

1997-01-01

482

CSC Mathematical Topics  

NSDL National Science Digital Library

CSC Mathematical Topics provides a variety of mathematics-related topics, including mathematical animations, and an editable list of best mathematical services. CSC is the Finnish national supercomputer center located in Espoo, Finland.

483

Mathematics, Physics and Music  

NASA Astrophysics Data System (ADS)

I discuss the Pythagorean law of small numbers and its use in interpretations of our sensory discriminations of consonance vs. dissonance. It seems that the fact of non-western musical traditions contradicts the law and forces us to interpret the discriminations as acquired and subjective. I would like to show that this is a wrong interpretation, because it is based on the irrelevant empirical evidence. It does not take into account the correct mathematical and physical explanation of the law, provided by Helmholtz's theory in 1877 and corroborated by Plomp-Levelt experiment in 1965.

Šiki?, Zvonimir

484

Victorian Certificate of Education: Mathematics, Science and Gender  

ERIC Educational Resources Information Center

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.…

Cox, Peter J.; Leder, Gilah C.; Forgasz, Helen J.

2004-01-01

485

Underground Mathematics  

ERIC Educational Resources Information Center

The movement of groundwater in underground aquifers is an ideal physical example of many important themes in mathematical modeling, ranging from general principles (like Occam's Razor) to specific techniques (such as geometry, linear equations, and the calculus). This article gives a self-contained introduction to groundwater modeling with…

Hadlock, Charles R

2013-01-01

486

Stem Cell Transplants  

NSDL National Science Digital Library

Transplanting embryonic stem cells from embryo into adult as a means of rejuvenating diseased cells, tissues, and organs poses ethical and moral challenges. In recent years, stem cell-derived nerve and glandular tissue has been transplanted into the brains and pancreas of Parkinson's disease and diabetes patients, respectively, with mixed results. This chapter provides background information on stem cell research, the future treatment of Parkinson's disease, and the controversy surrounding this sensitive issue.

Irwin Slesnick

2004-01-01

487

Embryonic Stem Cell Course  

NSDL National Science Digital Library

This "Course-in-a-Box" from Bio-Link is a good starting point for instructors to develop a course on embryonic stem cells. If a full course on stem cells is not appropriate for a particular curriculum "individual lectures and activity modules are well-suited for integration into existing bioscience or biotechnology courses." Materials include laboratory protocols for both mouse and human embryonic stem cells, lectures, activities, and assessments. A free login is required to access the materials.

488

Dilemma in Teaching Mathematics  

ERIC Educational Resources Information Center

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…

Md Kamaruddin, Nafisah Kamariah; Md Amin, Zulkarnain

2012-01-01

489

study programs in mathematics  

E-print Network

study programs in m mathematics #12;#12;3 CONTENTS 5 Introduction 7 Mathematics at the University of Ljubljana 9 Department of Mathematics information page Academic study program in Mathematics Academic study program in Financial Mathematics Single cycle master's study program in Mathematics education

Â?umer, Slobodan

490

Stem Cell Resources  

NSDL National Science Digital Library

The mission of the Stem Cell Resources website is "to provide timely, reliable, high-quality and scientifically credible stem cell information for the educational community worldwide." The website is a division of Bioscience Network which publishes online science education materials. On the site, visitors will find a stem cell image library, a multimedia area, and a special section titled "For Educators". In the "For Educators" area, visitors will find links to a primer on stem cells and links to educational resources on stem cells from curriculum to case studies to lesson plans from such trusted sources as the Australian Stem Cell Centre and the National Institutes of Health. Moving on, the "Multimedia" area includes videos that show how embryonic stem cell lines are made, along with other animations and graphics on the topic. Additionally, the site's "SCR Library" area includes the link to the Stem Cell Image Library, which provides dozens of photos of stem cells taken from researchers at the University of Cambridge and other institutions.

491

Stem cells and reproduction  

PubMed Central

Purpose of review To review the latest developments in reproductive tract stem cell biology. Recent findings In 2004, two studies indicated that ovaries contain stem cells which form oocytes in adults and that can be cultured in vitro into mature oocytes. A live birth after orthotopic transplantation of cyropreserved ovarian tissue in a woman whose ovaries were damaged by chemotherapy demonstrates the clinical potential of these cells. In the same year, another study provided novel evidence of endometrial regeneration by stem cells in women who received bone marrow transplants. This finding has potential for the use in treatment of uterine disorders. It also supports a new theory for the cause of endometriosis, which may have its origin in ectopic transdifferentiation of stem cells. Several recent studies have demonstrated that fetal cells enter the maternal circulation and generate microchimerism in the mother. The uterus is a dynamic organ permeable to fetal stem cells, capable of transdifferentiation and an end organ in which bone marrow stem cells may differentiate. Finally stem cell transformation can be an underlying cause of ovarian cancer. Summary Whereas we are just beginning to understand stem cells, the potential implications of stem cells to reproductive biology and medicine are apparent. PMID:20305558

Du, Hongling; Taylor, Hugh S.

2011-01-01

492

Stress and stem cells  

PubMed Central

The unique properties and functions of stem cells make them particularly susceptible to stresses and also lead to their regulation by stress. Stem cell division must respond to the demand to replenish cells during normal tissue turnover as well as in response to damage. Oxidative stress, mechanical stress, growth factors, and cytokines signal stem cell division and differentiation. Many of the conserved pathways regulating stem cell self-renewal and differentiation are also stress-response pathways. The long life span and division potential of stem cells create a propensity for transformation (cancer) and specific stress responses such as apoptosis and senescence act as antitumor mechanisms. Quiescence regulated by CDK inhibitors and a hypoxic niche regulated by FOXO transcription factor function to reduce stress for several types of stem cells to facilitate long-term maintenance. Aging is a particularly relevant stress for stem cells, because repeated demands on stem cell function over the life span can have cumulative cell-autonomous effects including epigenetic dysregulation, mutations, and telomere erosion. In addition, aging of the organism impairs function of the stem cell niche and systemic signals, including chronic inflammation and oxidative stress. PMID:23799624

Tower, John

2013-01-01

493

Interpreting stem diameter changes  

NASA Astrophysics Data System (ADS)

Detecting phloem transport in stem diameter changes Teemu Hölttä1, Sanna Sevanto2, Eero Nikinmaa1 1Department of Forest Ecology, P.O. Box 27, FIN-00014 University of Helsinki, Finland 2Department of Physics, P.O. Box 48, FIN-00014 University of Helsinki, Finland Introduction The volume of living cells and xylem conduits vary according to pressures they are subjected to. Our proposition is that the behavior of the inner bark diameter variation which cannot be explained by changes in xylem water status arise from changes in the osmotic concentration of the phloem and cambial growth. Materials and methods Simultaneous xylem and stem diameter measurements were conducted between June 28th to October 4th 2006 in Southern Finland on a 47-year old, 15 meter tall, Scots pine tree (DBH 15 cm) at heights of 1.5 and 10 meters. The difference between the measured inner bark diameter and the inner bark diameter predicted from xylem diameter change with a simple model (assuming there was no change in the osmotic concentration of the phloem) is hypothesized to give the changes in the osmotic concentration of the inner bark. The simple model calculates the radial water exchange between the xylem and phloem driven by the water potential changes in the xylem. Results and Discussion The major signal in the inner bark diameter was the transpiration rate as assumed, but also a signal arising from the change in the osmotic concentration (Fig 1a). The predicted osmotic concentration of the phloem typically increased during the afternoon due to the loading of photosynthesized sugars to the phloem. Inner bark osmotic concentration followed the photosynthesis rate with a 3 and 4 hour time-lag at the top and base, respectively (Fig 1b). The connection between photosynthesis and the predicted change in phloem osmotic concentration was stronger in the upper part of the tree compared to lower part. The changes in the predicted osmotic concentration were not similar every day, indicating that photosynthesized sugars were not always immediately loaded to the phloem (not shown). Figures Fig 1. (a) Measured xylem and inner bark diameter, the inner bark diameter predicted from xylem diameter alone, and the difference between the measured inner bark diameter and the inner bark diameter predicted from xylem diameter. (b) Measured transpiration and photosynthesis rates and the change in osmotic concentration at tree top and bottom predicted by the analysis.

Hölttä, T.; Sevanto, S.; Nikinmaa, E.

2009-12-01

494

18.325 Topics in Applied Mathematics: Mathematical Methods in Nanophotonics, Fall 2005  

E-print Network

Topics vary from year to year. Topic for Fall: Eigenvalues of random matrices. How many are real? Why are the spacings so important? Subject covers the mathematics and applications in physics, engineering, computation, and ...

Johnson, Steven G., 1973-

495

Classroom Assessment Techniques: Mathematical Thinking  

NSDL National Science Digital Library

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.

Swan, Malcolm; Ridgway, Jim; The National Institute for Science Education; College Level One Team

496

Practicing Engineers' Perspective on Mathematics and Mathematics Education in College  

ERIC Educational Resources Information Center

This paper reports on a qualitative study focusing on engineers' point of view in regard to university mathematics and mathematics education. An individual interview was conducted with three electrical and two mechanical engineers between the ages of 25-40, all engaged in successful careers. The subjects were requested to reflect upon…

Tosmur-Bayazit, Nermin; Ubuz, Behiye

2013-01-01

497

Who Succeeds in Mathematics? Caribbean Perspectives on the Mix of Schools and Mathematics  

ERIC Educational Resources Information Center

Within the Caribbean, there has been a perception that students are underachieving in mathematics. This assessment has seemingly been based amongst other things upon the proportion of students who are successful in mathematics compared to other subjects in external examinations. This notion was investigated in a case study of secondary schools in…

George, Patricia

2012-01-01

498

The discursive production of classroom mathematics  

NASA Astrophysics Data System (ADS)

School mathematics is a function of its discursive environment where the language being used formats mathematical activity. The paper explores this theme through an extended example in which the conduct of mathematical teaching and learning is restricted by regulative educational policies. It considers how mathematics is discursively produced by student teachers within an employment-based model of teacher education in England where there is a low university input. It is argued that teacher reflections on mathematical learning and teaching within the course are patterned discursively in line with formal curriculum framings, assessment requirements and the local demands of their placement school. Both teachers and students are subject to regulative discourses that shape their actions and as a consequence this regulation influences the forms of mathematical activity that can take place. It is shown how university sessions can provide a limited critical platform from which to interrogate these restrictions and renegotiate them.

Smith, Kim; Hodson, Elaine; Brown, Tony

2013-09-01

499

Guest Editorial: Where Are the Women of Color? Data on African American, Hispanic, and Native American Faculty in STEM  

NSDL National Science Digital Library

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

Towns, Marcy H.

2010-03-04

500

Connected Knowledge in Science and Mathematics Education  

ERIC Educational Resources Information Center

While the traditional meaning of connected knowledge is valuable in some school subjects, it does not address the main activities of knowledge acquisition in subjects such as physics and mathematics. The goal of this article is to analyze the relationships between the concepts "learning for understanding" and "connected knowledge", a central theme…

Zohar, Anat

2006-01-01