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Sample records for 1-2 textbook analysis

  1. Introductory Psychology Textbooks: An Objective Analysis Update

    ERIC Educational Resources Information Center

    Griggs, Richard A.; Jackson, Sherri L.

    2013-01-01

    It has been 13 years since the last objective analysis of full-length introductory psychology textbooks was published and 15 years since the textbook copyright period used in that study, 1995-1997. Given the importance of informed textbook evaluation and selection to the introductory course but the difficulty of this task because of the large…

  2. A Role for Language Analysis in Mathematics Textbook Analysis

    ERIC Educational Resources Information Center

    O'Keeffe, Lisa; O'Donoghue, John

    2015-01-01

    In current textbook analysis research, there is a strong focus on the content, structure and expectation presented by the textbook as elements for analysis. This research moves beyond such foci and proposes a framework for textbook language analysis which is intended to be integrated into an overall framework for mathematics textbook analysis. The…

  3. Textbooks for Responsible Data Analysis in Excel

    ERIC Educational Resources Information Center

    Garrett, Nathan

    2015-01-01

    With 27 million users, Excel (Microsoft Corporation, Seattle, WA) is the most common business data analysis software. However, audits show that almost all complex spreadsheets have errors. The author examined textbooks to understand why responsible data analysis is taught. A purposeful sample of 10 textbooks was coded, and then compared against…

  4. Brief Introductory Psychology Textbooks: A Current Analysis.

    ERIC Educational Resources Information Center

    Griggs, Richard A.; Koenig, Cynthia S.

    2001-01-01

    Presents a comparative analysis of 15 brief introductory psychology textbooks for teachers who want a leaner introductory text. Focuses on length, pedagogical aids, and topic coverage. States that there is enough variability among the texts to accommodate teachers' preferences and needs. Includes a bibliography of the textbooks. (CMK)

  5. An Economic Analysis of Textbook Pricing and Textbook Markets. ACSFA College Textbook Cost Study Plan Proposal

    ERIC Educational Resources Information Center

    Koch, James V.

    2006-01-01

    Between 1986 and 2004, textbook prices rose 186 percent in the United States, or slightly more than six percent per year. Meanwhile, other prices rose only about three percent per year. This paper examines the economic reasons why textbook prices have escalated so briskly and what reasonable alternatives are available that might slow down these…

  6. Brief Introductory Psychology Textbooks: An Objective Analysis Update

    ERIC Educational Resources Information Center

    Griggs, Richard A.; Jackson, Sherri L.

    2013-01-01

    It has been 12 years since the last objective analysis of brief introductory psychology textbooks was published and 13 years since the textbook copyright period used in that study, 1997-2000. Given the importance of informed textbook evaluation and selection to the introductory course but the difficulty of this task because of the large number of…

  7. Multiple Intelligences Theory and Iranian Textbooks: An Analysis

    ERIC Educational Resources Information Center

    Taase, Yoones

    2012-01-01

    The purpose of this study is to investigate locally designed ELT textbooks in the light of multiple intelligences theory. Three textbooks (grade 1.2.3) used in guidance school of Iranian educational system were analyzed using MI checklist developed by Botelho, Mario do Rozarioand. Catered for kinds of intelligences in the activities and exercises…

  8. An Analysis of the Readability of Financial Accounting Textbooks.

    ERIC Educational Resources Information Center

    Smith, Gerald; And Others

    1981-01-01

    The Flesch formula was used to calculate the readability of 15 financial accounting textbooks. The 15 textbooks represented introductory, intermediate, and advanced levels and also were classified by five different publishers. Two-way analysis of variance and Tukey's post hoc analysis revealed some significant differences. (Author/CT)

  9. Environmental Education in Macedonian Schools: A Comparative Analysis of Textbooks

    ERIC Educational Resources Information Center

    Srbinovski, Mile

    2013-01-01

    The purpose of this article is to describe and discuss an analysis of the extent to which environmental issues are addressed in the textbooks in the schools of the Republic of Macedonia. Research has analyzed a range of textbooks (279) published in the past 15 years. Our fundamental conclusion is that the inclusion of environmental issues in the…

  10. Disability in Physical Education Textbooks: An Analysis of Image Content

    ERIC Educational Resources Information Center

    Taboas-Pais, Maria Ines; Rey-Cao, Ana

    2012-01-01

    The aim of this paper is to show how images of disability are portrayed in physical education textbooks for secondary schools in Spain. The sample was composed of 3,316 images published in 36 textbooks by 10 publishing houses. A content analysis was carried out using a coding scheme based on categories employed in other similar studies and adapted…

  11. A readability analysis of elementary-level science textbooks

    NASA Astrophysics Data System (ADS)

    Trainer, Robyn

    Given both the unprecedented attention to the importance of providing children with the best possible science textbooks and the overwhelming evidence that students in the United States are severely lacking the most basic science knowledge, the decline in the number of students pursuing science degrees is alarming. In spite of all the efforts being made, a disparity still exists between (1) the wealth of science information available, (2) the apparent ease of access to scientific information, and (3) the lack of scientific academic progress being made in classrooms across the United States. A literature review was conducted which included the areas of textbook analysis and textbook readability levels, the fields of textbook analysis and readability, and findings from recently published books about textbook readability. The majority of the literature reflected an urgent need for science textbooks to be revised. Based on the information gathered during the literature review, the study examined the readability levels of elementary level science textbooks that were published by six textbook publishers. Results from the study revealed that when used properly, readability formulas provide an objective look at textbooks. After applying these formulas to the selected elementary level science textbooks, it became clear that very few changes were implemented between the most recent previous editions and the current editions. The textbooks remain too difficult for the students using them. The findings from this study will help science textbook publishers and textbook writers see that some changes need to be made in the way their textbooks are written. In order to maintain a competitive edge in the global marketplace, more students need to pursue science. In order for more students to do that, they need to pursue science degrees, but in order for them to pursue science degrees, they need to have a certain degree of confidence and level of interest in the subject matter. For

  12. "Textbook as a Contradictory Melting-Pot": An Analysis of Multicultural Content in Korean Textbooks

    ERIC Educational Resources Information Center

    Cho, Youngdal; Park, Yunkyoung

    2016-01-01

    In this study we will observe how multicultural content is covered in elementary and secondary schools in Korea. For this purpose, a total of 52 textbooks (social studies, ethics and Korean language from third to ninth grade) were analysed using two analysis frames. The first frame is the "multicultural content analysis frame (MCAF)"…

  13. Similarity of Science Textbooks: A Content Analysis

    ERIC Educational Resources Information Center

    Yost, Michael

    1973-01-01

    Studied the similarity of the astronomy portion in five science textbooks at the fourth through sixth grade levels by comparing students' responses to text authors' requirements. Concluded that the texts had more in common across grade levels than within grade levels. (CC)

  14. Analysis of a Typical Chinese High School Biology Textbook Using the AAAS Textbook Standards

    ERIC Educational Resources Information Center

    Liang, Ye; Cobern, William W.

    2013-01-01

    The purpose of this study was to evaluate a typical Chinese high school biology textbook using the textbook standards of the American Association for the Advancement of Science (AAAS). The data were composed of three chapters selected from the textbook. Each chapter was analyzed and rated using the AAAS textbook standards. Pearson correlations…

  15. A Citation Analysis of Who's Who in Introductory Textbooks

    ERIC Educational Resources Information Center

    Griggs, Richard A.; Proctor, Derrick L.

    2002-01-01

    Given the many changes in the introductory psychology textbook market in the past 2 decades and the lack of a recent citation study of introductory texts, we conducted a citation analysis of a stratified random sample of current texts. To provide a more comprehensive picture of current citation emphases, we extended our analysis to the top 60…

  16. Visual Education Textbooks in the 1920s: A Qualitative Analysis.

    ERIC Educational Resources Information Center

    Yeaman, Andrew R. J.

    This exploration of the origins of educational communications and technology as a field focuses on the 1920s when the visual education movement first appeared. An explanation of the study precedes separate reviews of 13 primary sources--i.e., visual education textbooks--and draws on them to provide evidence for an analysis of the ideas and forces…

  17. Analogies in Senior High School Chemistry Textbooks: A Critical Analysis.

    ERIC Educational Resources Information Center

    Thiele, Rodney B.; Treagust, David F.

    Analogies are considered an effective method for providing a bridge between unfamiliar concepts and knowledge that students already have. This paper reports a critical analysis of analogies found in chemistry textbooks used by Australian senior high school students and is presented in three sections. The first section of the paper presents the…

  18. Introductory Psychology Textbooks: An Objective Analysis and Update.

    ERIC Educational Resources Information Center

    Griggs, Richard A.; Jackson, Sherri L.; Christopher, Andrew N.; Marek, Pam

    1999-01-01

    Explores changes in the introductory psychology textbook market through an analysis of edition, author, length, and content coverage of the volumes that comprise the current market. Finds a higher edition average, a decrease in the number of authors, an increase in text pages, and a focus on developmental psychology and sensation/perception. (CMK)

  19. Comparative analysis of a nontraditional general chemistry textbook and selected traditional textbooks used in Texas community colleges

    NASA Astrophysics Data System (ADS)

    Salvato, Steven Walter

    The purpose of this study was to analyze questions within the chapters of a nontraditional general chemistry textbook and the four general chemistry textbooks most widely used by Texas community colleges in order to determine if the questions require higher- or lower-order thinking according to Bloom's taxonomy. The study employed quantitative methods. Bloom's taxonomy (Bloom, Engelhart, Furst, Hill, & Krathwohl, 1956) was utilized as the main instrument in the study. Additional tools were used to help classify the questions into the proper category of the taxonomy (McBeath, 1992; Metfessel, Michael, & Kirsner, 1969). The top four general chemistry textbooks used in Texas community colleges and Chemistry: A Project of the American Chemical Society (Bell et al., 2005) were analyzed during the fall semester of 2010 in order to categorize the questions within the chapters into one of the six levels of Bloom's taxonomy. Two coders were used to assess reliability. The data were analyzed using descriptive and inferential methods. The descriptive method involved calculation of the frequencies and percentages of coded questions from the books as belonging to the six categories of the taxonomy. Questions were dichotomized into higher- and lower-order thinking questions. The inferential methods involved chi-square tests of association to determine if there were statistically significant differences among the four traditional college general chemistry textbooks in the proportions of higher- and lower-order questions and if there were statistically significant differences between the nontraditional chemistry textbook and the four traditional general chemistry textbooks. Findings indicated statistically significant differences among the four textbooks frequently used in Texas community colleges in the number of higher- and lower-level questions. Statistically significant differences were also found among the four textbooks and the nontraditional textbook. After the analysis of

  20. A pedagogical analysis of science textbooks: How can we proceed?

    NASA Astrophysics Data System (ADS)

    Koulaidis, Vasilis; Tsatsaroni, Anna

    1996-03-01

    This paper discusses some of the available frameworks for the pedagogical analysis of school science textbooks. First, it distinguishes between (a) studies which focus on elements of textbooks, such as the content, vocabulary, illustrations used, and the teaching methods promoted; and (b) those which consider the principles that organize the content and the form of presentation. In attempting to consider the sorts of principles that may be used in the studies categorised under (b), two crucial issues are discussed. The first issue refers to the relationship between scientific knowledge and school knowledge, which, as the relevant literature suggests, might not be conceived merely as a simplified “casting” of the scientific structure, but rather should be understood as a complex social process. The second issue explicitly addresses the nature of the pedagogic relationship and the place of the pedagogic text within it. Recent views about the nature of knowledge, it is argued, would suggest a reconceptualisation of the teaching activity, and indicate a model according to which the three elements of the teaching situation-the content, the pupil and the teacher—are seen as being (re)constituted in their articulation within and through the text(book). Thus, for example, what is to be a competent pupil in this approach is a function of the text. On the basis of these considerations, three approaches to the analysis of science textbooks are discussed: the socio-cognitive, the sociolinguistic and the socio-epistemic. The relative merits of the third approach are considered, and some examples are used from Greek science textbooks.

  1. An Analysis of Science Textbooks for Grade 6: The Electric Circuit Lesson

    ERIC Educational Resources Information Center

    Sothayapetch, Pavinee; Lavonen, Jari; Juuti, Kalle

    2013-01-01

    Textbooks are a major tool in the teaching and learning process. This paper presents the results of an analysis of the Finnish and Thai 6th grade science textbooks: electric circuit lesson. Textual and pictorial information from the textbooks were analyzed under four main categories: 1) introduction of the concepts, 2) type of knowledge, 3)…

  2. A Statistical Analysis of College Biochemistry Textbooks in China: The Statuses on the Publishing and Usage

    ERIC Educational Resources Information Center

    Zhou, Ping; Wang, Qinwen; Yang, Jie; Li, Jingqiu; Guo, Junming; Gong, Zhaohui

    2015-01-01

    This study aimed to investigate the statuses on the publishing and usage of college biochemistry textbooks in China. A textbook database was constructed and the statistical analysis was adopted to evaluate the textbooks. The results showed that there were 945 (~57%) books for theory teaching, 379 (~23%) books for experiment teaching and 331 (~20%)…

  3. An Analysis of the Effectiveness of Analogy Use in College-Level Biochemistry Textbooks

    ERIC Educational Resources Information Center

    Orgill, MaryKay; Bodner, George M.

    2006-01-01

    Science instructors and textbook authors often use analogies to help their students use information they already understand to develop an understanding of new concepts. This study reports the results of an analysis of the use of analogies in eight biochemistry textbooks, which included textbooks written for one-semester survey biochemistry courses…

  4. Content Analysis of Songs in Elementary Music Textbooks in Accordance with Values Education in Turkey

    ERIC Educational Resources Information Center

    Yalçinkaya, Begüm

    2015-01-01

    The aim of this study is to determine which values are included in education songs in elementary school textbooks and the level of these values. This study, conducted using document analysis method, involved primary education music class textbooks. Education songs in textbooks were analyzed within the frame of 29 values determined based on…

  5. The Dumbing Down of Textbooks: An Analysis of Six Textbook Editions during a Twelve Year Span.

    ERIC Educational Resources Information Center

    Gionfriddo, Jeanne Jarema

    Three readability formulas were applied to chapters from six textbooks to determine (1) if there was a significant difference in readability of three consecutive textbook editions of a seventh grade and of an eighth grade text over a 12-year period (1968-1980), and (2) whether eighth grade students would perform equally to the same content from a…

  6. Who's Who in Introductory Psychology Textbooks: A Citation Analysis Redux

    ERIC Educational Resources Information Center

    Griggs, Richard A.; Christopher, Andrew N.

    2016-01-01

    It is important to assess periodically how introductory textbooks portray our discipline because introductory psychology is the most popular psychology course, almost all teachers use textbooks for it, and textbooks play a major role in defining the course for students. To do so, past studies have used textbook citation analyses. We analyzed…

  7. Disability in physical education textbooks: an analysis of image content.

    PubMed

    Táboas-Pais, María Inés; Rey-Cao, Ana

    2012-10-01

    The aim of this paper is to show how images of disability are portrayed in physical education textbooks for secondary schools in Spain. The sample was composed of 3,316 images published in 36 textbooks by 10 publishing houses. A content analysis was carried out using a coding scheme based on categories employed in other similar studies and adapted to the requirements of this study with additional categories. The variables were camera angle, gender, type of physical activity, field of practice, space, and level. Univariate and bivariate descriptive analyses were also carried out. The Pearson chi-square statistic was used to identify associations between the variables. Results showed a noticeable imbalance between people with disabilities and people without disabilities, and women with disabilities were less frequently represented than men with disabilities. People with disabilities were depicted as participating in a very limited variety of segregated, competitive, and elite sports activities. PMID:23027145

  8. Semantic Network Analysis of Earth ScienceTextbooks Focus on Learning Objectives in Korea

    NASA Astrophysics Data System (ADS)

    Chung, Duk Ho

    2014-05-01

    The purpose of this study was to investigate how congruently the learning objectives of Earth Science textbooks match the 2009 revised Earth Science curriculum in Korea. For this purpose, we classified the learning objectives of curriculum and textbooks were into three factors including ability, cross-cutting concepts, and behavioral verbs. The text data were analyzed using the semantic network analysis method. The results are as follows. The learning objectives of textbooks with regard to ability factors mainly emphasized the cognitive and affective domain. In addition, the ability of inquiry performance was emphasized in the learning objective of the curriculum. The textbooks used various sub-frame of cross-cutting concepts in comparison with the curriculum. Both textbooks and curriculum used the term 'comprehension' the most as behavioral verbs. However, most behavioral verbs just remained at the level of cognitive system. Keywords: curriculum, textbook, learning objectives, semantic network analysis

  9. Analysis of the Approach of Paleontology in Geography Textbooks in Ituiutaba, Minas Gerais, Brazil

    ERIC Educational Resources Information Center

    Alves, Emerson J. F.; Moura, Gerusa G.; dos A. Candeiro, Carlos R.

    2013-01-01

    The textbook is currently one of the driving instruments of teaching and learning. In the analysis of the contents of paleontology in geography textbooks, these books are important because they reveal problems embedded in these works and allow a more informed choice of books for the approach. In this work we performed an analysis of the approach…

  10. Towards a Framework of Socio-Linguistic Analysis of Science Textbooks: The Greek Case

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    Dimopoulos, Kostas; Koulaidis, Vasilis; Sklaveniti, Spyridoula

    2005-09-01

    This study aims at presenting a grid for analysing the way the language employed in Greek school science textbooks tends to project pedagogic messages. These messages are analysed for the different school science subjects (i.e., Physics, Chemistry, Biology) and educational levels (i.e., primary and lower secondary level). The analysis is made using the dimensions of content specialisation (classification) and social-pedagogic relationships (framing) promoted by the language of the school science textbooks as well as the elaboration and abstraction of the corresponding linguistic code (formality), thus combining pedagogical and socio-linguistic perspectives. Classification and formality are used to identify the ways science textbooks tend to position students in relation to the interior of the corresponding specialised body of knowledge (i.e., in terms of content and code) while framing is used to identify the ways science textbooks tend to position students as learning subjects within the school science discourse. The results show that the kind of pedagogic messages projected by the textbooks depends mainly on the educational level and not particularly on the specific discipline. As the educational level rises a gradual move towards more specialised forms of scientific knowledge (mainly in terms of code) with a parallel increase in the students' autonomy in accessing the textbook material is noticed. The implications concern the way both students and teachers approach science textbooks as well as the roles they can undertake by internalising the textbooks' pedagogic messages and also the way science textbooks are authored.

  11. A Content Analysis of Lesbian, Gay, Bisexual, and Transgender Topics in Multicultural Education Textbooks

    ERIC Educational Resources Information Center

    Jennings, Todd; Macgillivray, Ian K.

    2011-01-01

    This research examines the treatment of lesbian, gay, bisexual, and transgender (LGBT) topics in 12 popular multicultural education textbooks. Following a line-by-line analysis of each textbook, the findings report the extent to which LGBT topics were included in each text and the themes that became apparent in how LGBT topics were treated. The…

  12. Prospects for Teaching Historical Analysis and Interpretation: National Curriculum Standards for History Meet Current History Textbooks.

    ERIC Educational Resources Information Center

    Foster, Stuart; And Others

    1996-01-01

    Examines to what extent representative history textbooks used in American high schools encourage development of historical analysis and interpretation, one of five standards issued by the National Center for History in the Schools. Treatment of the Aztec Empire and the Cold War varied widely in the four textbooks studied. All texts failed the new…

  13. To Lift as We Climb: A Textbook Analysis of the Segregated School Experience

    ERIC Educational Resources Information Center

    Pellegrino, Anthony; Mann, Linda; Russell, William B., III

    2013-01-01

    In this paper we share findings of a textbook analysis in which we explored the treatment of segregated education in eight, widely-used secondary United States history and government textbooks. We positioned our findings within the historiography related to the African American school experience which challenges the notion that the lack of…

  14. Data Graphs in Introductory and Upper Level Psychology Textbooks: A Content Analysis.

    ERIC Educational Resources Information Center

    Peden, Blaine F.; Hausmann, Sarah E.

    2000-01-01

    Reports on a content analysis of data graphs in introductory level and upper level psychology textbooks. Explains that upper level and introductory textbooks did not differ on the frequency and variability of data graph presentation. Presents the results and discusses implications for teachers of psychology. (CMK)

  15. Analysis of Turkish High School Chemistry Textbooks and Teacher-Generated Questions about Gas Laws

    ERIC Educational Resources Information Center

    Nakiboglu, Canan; Yildirir, H.

    2011-01-01

    This study presents the results of an analysis of high school chemistry textbooks and teacher-generated questions about gas laws. The materials that were analyzed consisted of 456 questions about gas laws found in seven grade 10 chemistry textbooks and 264 teacher-generated examination questions prepared by seven chemistry teachers from three…

  16. A Content Analysis of the WH-Questions in the EFL Textbook of "Horizons"

    ERIC Educational Resources Information Center

    Igbaria, Abdul Kareem

    2013-01-01

    This study dealt with analysis of the study units in the textbook "Horizons" for 9th-grade students studying English in mixed ability classes. The study sought to examine the variety in the cognitive level represented by the WH-questions in the textbook according to Bloom's taxonomy. The study also attempted to examine the extent in…

  17. Sight-Singing Pedagogy: A Content Analysis of Choral Methods Textbooks

    ERIC Educational Resources Information Center

    Floyd, Eva G.; Haning, Marshall A.

    2015-01-01

    The purpose of this study was to examine the sight-singing pedagogy content of choral methods textbooks, with the intent of determining what elements of sight-singing pedagogy are most commonly included in these resources. A content analysis was conducted to analyze information related to sight-singing pedagogy in 10 textbooks that are commonly…

  18. An Analysis of Social Studies Textbooks in Turkey: From National Citizenship to Global Citizenship

    ERIC Educational Resources Information Center

    Ersoy, Arife Figen

    2013-01-01

    The purpose of this study is to examine Social Studies textbooks in terms of national and global citizenship. The research was carried out using qualitative research methodologies. Interpretive thematic analysis was used to examine the social studies textbooks from 4th grade through 8th grade. The analyses showed that the Social Studies textbooks…

  19. An Analysis and Critique of Selected Social Studies Textbooks.

    ERIC Educational Resources Information Center

    Giannangelo, Duane M.; Kaplan, Mary Bene

    The purpose of this paper is to evaluate four social studies textbooks recently under consideration for use by the Memphis (Tennessee) City Public Schools. The textbooks, chosen at random, are: "World Geography: A Physical and Cultural Study" (de Blij and others, Scott Foresman, 1989); "A History of the United States" (Boorstin and others);…

  20. Process Analysis and Level Measurement of Textbooks Use by Teachers

    ERIC Educational Resources Information Center

    Kong, Fanzhe; Shi, Ningzhong

    2009-01-01

    Teachers and textbooks are two important elements in curriculum implementation. Based on Concerns-Based Adoption Model (CBAM), a curriculum implementation measurement model designed by G. Hall and S. M. Hord, this paper analyzes the general process of curriculum implementation in terms of textbook use, establishes a model that gauges the level of…

  1. The Greening of Marketing: An Analysis of Introductory Textbooks

    ERIC Educational Resources Information Center

    DeMoss, Michelle; Nicholson, Carolyn Y.

    2005-01-01

    In this study, the authors examined whether introductory marketing textbooks contain the information that is needed to educate future business leaders about the important role of environmentally sustainable practices. We content-analyzed the 21 current introductory marketing textbooks for coverage of these practices. The results showed limited,…

  2. Social and Abnormal Psychology Textbooks: An Objective Analysis.

    ERIC Educational Resources Information Center

    Christopher, Andrew N.; Griggs, Richard A.; Hagans, Chad L.

    2000-01-01

    Provides feature and content analyses of 14 social and 17 abnormal psychology full-length textbooks from 1995-98 that are available for undergraduate psychology courses. Provides instructors of these courses a means for more informed text selection. (CMK)

  3. Quantitative Analysis of Science and Chemistry Textbooks for Indicators of Reform: A complementary perspective

    NASA Astrophysics Data System (ADS)

    Kahveci, Ajda

    2010-07-01

    In this study, multiple thematically based and quantitative analysis procedures were utilized to explore the effectiveness of Turkish chemistry and science textbooks in terms of their reflection of reform. The themes gender equity, questioning level, science vocabulary load, and readability level provided the conceptual framework for the analyses. An unobtrusive research method, content analysis, was used by coding the manifest content and counting the frequency of words, photographs, drawings, and questions by cognitive level. The context was an undergraduate chemistry teacher preparation program at a large public university in a metropolitan area in northwestern Turkey. Forty preservice chemistry teachers were guided to analyze 10 middle school science and 10 high school chemistry textbooks. Overall, the textbooks included unfair gender representations, a considerably higher number of input and processing than output level questions, and high load of science terminology. The textbooks failed to provide sufficient empirical evidence to be considered as gender equitable and inquiry-based. The quantitative approach employed for evaluation contrasts with a more interpretive approach, and has the potential in depicting textbook profiles in a more reliable way, complementing the commonly employed qualitative procedures. Implications suggest that further work in this line is needed on calibrating the analysis procedures with science textbooks used in different international settings. The procedures could be modified and improved to meet specific evaluation needs. In the Turkish context, next step research may concern the analysis of science textbooks being rewritten for the reform-based curricula to make cross-comparisons and evaluate a possible progression.

  4. Chemistry and Chemical Education through Text and Image: Analysis of Twentieth Century Textbooks Used in Brazilian Context

    ERIC Educational Resources Information Center

    Souza, Karina Ap F. D.; Porto, Paulo Alves

    2012-01-01

    Assuming that textbooks give literary expression to cultural and ideological values of a nation or group, we propose the analysis of chemistry textbooks used in Brazilian universities throughout the twentieth century. We analyzed iconographic and textual aspects of 31 textbooks which had significant diffusion in the context of Brazilian…

  5. Analysis of High School German Textbooks through Rasch Measurement Model

    ERIC Educational Resources Information Center

    Batdi, Veli; Elaldi, Senel

    2016-01-01

    The purpose of the present study is to analyze German teacher trainers' views on high school German textbooks through the Rasch measurement model. A survey research design was employed and study group consisted of a total of 21 teacher trainers, three from each region and selected randomly from provinces which are located in seven regions and…

  6. Analysis of Molecular Genetics Content in Spanish Secondary School Textbooks

    ERIC Educational Resources Information Center

    Martinez-Gracia, M. V.; Gil-Quilez, M. J.; Osada, J.

    2006-01-01

    The treatment of molecular biology in thirty-four Spanish high school biology textbooks has been analysed using a check-list made up of twenty-three items. The study showed a tendency to confuse the genetic code with genetic information. The treatment of DNA transcription, regulation of gene expression and translation were presented as masses of…

  7. Analysis of Risk Management in Adapted Physical Education Textbooks

    ERIC Educational Resources Information Center

    Murphy, Kelle L.; Donovan, Jacqueline B.; Berg, Dominck A.

    2016-01-01

    Physical education teacher education (PETE) programs vary on how the topics of safe teaching and risk management are addressed. Common practices to cover such issues include requiring textbooks, lesson planning, peer teaching, videotaping, reflecting, and reading case law analyses. We used a mixed methods design to examine how risk management is…

  8. Bridges or Barriers: Analysis of Logodiversity in College Biology Textbooks

    ERIC Educational Resources Information Center

    Burton, Rebecca S.

    2011-01-01

    When selecting a textbook, college instructors must weigh a variety of factors. One is whether the text is written at a level that is accessible to one's students. An important factor in this is how many technical words are used. I developed an index to calculate logodiversity, a term I coined that reflects the number of technical words and the…

  9. An Analysis of Data Activities and Instructional Supports in Middle School Science Textbooks

    NASA Astrophysics Data System (ADS)

    Morris, Bradley J.; Masnick, Amy M.; Baker, Katie; Junglen, Angela

    2015-11-01

    A critical component of science and math education is reasoning with data. Science textbooks are instructional tools that provide opportunities for learning science content (e.g. facts about force and motion) and process skills (e.g. data recording) that support and augment reasoning with data. In addition, the construction and design of textbooks influence the instructional strategies used in the classroom to teach science. An analysis of science textbooks provides a window to examine what students are being taught about data and how they are being taught. We had two objectives for the present study: (1) to examine opportunities for reasoning with data and (2) to examine to what extent these activities are aligned with instructional supports derived from evidence-based learning strategies. We conducted a descriptive study in which we examined how 20 Middle School science textbooks, across 731 activities, presented opportunities for reasoning with data. Our results demonstrate that although half of activities in textbooks included data, very few of these activities provide opportunities to learn how to record, analyze, and interpret data and the activities rarely provided instructional supports based on evidence-based learning strategies. Our analysis suggests that science textbooks provide limited support for reasoning with data.

  10. Quantitative and qualitative analysis of student textbook summary writing

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    Demaree, Dedra; Allie, Saalih; Low, Michael; Taylor, Julian

    2008-10-01

    The majority of "special access" students at the University of Cape Town are second language English speakers for whom reading the physics textbook is daunting. As a strategy to encourage meaningful engagement with the text, students wrote textbook summaries due the day material was covered in class. The summaries were returned, and they could bring them or re-write them for use during their examinations. A framework was developed to analyze the summaries based on Waywood, defining three cognitive levels seen in mathematics journaling: recounting, summarizing, and dialoging. This framework was refined, expanded, and tested. Interviews with students were conducted for their views on summary writing and survey questions were included on their final exams. The study was carried out in the 2007 spring semester of the "Foundation Physics Course," a component of the special access program.

  11. "We Are Textbook 'Badnekais'!": A Bernsteinian Analysis of Textbook Culture in Science Classrooms

    ERIC Educational Resources Information Center

    Vijaysimha, Indira

    2013-01-01

    This article is an empirical study of science teaching practices using a Bernsteinian framework. It provides a comparative analysis through ethnographic examination of pedagogic recontextualisation in different school types--government, private unaided and international. Bernstein drew attention to the process of pedagogic recontextualisation and…

  12. Women and Economics Textbooks.

    ERIC Educational Resources Information Center

    Hahn, Carole L.; Blankenship, Glen

    1983-01-01

    A content analysis of 22 secondary economics textbooks revealed the textbooks to be less sex-biased than the books examined in earlier studies. However, women are still underrepresented in most of the textbooks, and little attention is given to economic realities which women face. (Author/RM)

  13. Analysis of the New Physics Textbook for the 9th Grade of the Greek Schools

    NASA Astrophysics Data System (ADS)

    Kountouriotis, Georgios

    2010-01-01

    In the following paper we analyze the new textbook of Physics for the 9th grade (last year of compulsory education) of Greek schools. For this analysis, we use the framework that was developed by Koulaidis, B., Dimopoulos, K., Sklaveniti S., Xristidou B. (2002) The emphasis of this analysis is not in the content of the book, but in the transformation of scientific knowledge to school knowledge, the way the distinction of scientific and everyday knowledge is presented in the book and the pedagogic relations between teachers and students that the book implies. A limited comparison with the previous textbook is also presented.

  14. The Construction of Cultural Values and Beliefs in Chinese Language Textbooks: A Critical Discourse Analysis

    ERIC Educational Resources Information Center

    Liu, Yongbing

    2005-01-01

    This article examines the discourses of cultural values and beliefs constructed in Chinese language textbooks currently used for primary school students nationwide in China. By applying story grammar analysis in the framework of critical discourse analysis, the article critically investigates how the discourses are constructed and what ideological…

  15. A Critical Multicultural Analysis of a Romanian Textbook Taught in Elementary International Language Programs

    ERIC Educational Resources Information Center

    Stoilescu, Dorian

    2014-01-01

    This case study proposes a critical multicultural analysis of a Romanian language textbook used for instructing students in grades one and two in the Elementary Language International Program (ELIP) in Toronto public schools in Ontario, Canada. Based on an analysis developed from Fairclough and Parker's criteria, this paper determined stereotypes…

  16. An Analysis of South African Grade 9 Natural Sciences Textbooks for Their Representation of Nature of Science

    ERIC Educational Resources Information Center

    Ramnarain, Umesh Dewnarain; Chanetsa, Tarisai

    2016-01-01

    This article reports on an analysis and comparison of three South African Grade 9 (13-14 years) Natural Sciences textbooks for the representation of nature of science (NOS). The analysis was framed by an analytical tool developed and validated by Abd-El-Khalick and a team of researchers in a large-scale study on the high school textbooks in the…

  17. Content and citation analysis of interdisciplinary humanities textbooks within a framework of curriculum theory

    NASA Astrophysics Data System (ADS)

    Guidera, Julie K.

    The purpose of this dissertation was to analyze the content of textbooks used in undergraduate survey courses in interdisciplinary humanities to understand the content of the curriculum and how an author's viewpoint shapes the product. By enumerating the texts and images authors and their publishers used to illustrate 20th century culture and the transition into the 21st century, the analysis generated a description of the range of perspectives from traditional to postmodern found in six sampled textbooks. Textbook content provided chronological data, while authors' source citations established identity properties of the works' contributors. Through a ranking system of authors' treatment of content and citations, the most traditional perspectives were compared to the most postmodern. Classifying cultural contributors by identity properties gave a quantitative rate of inclusion of traditionally excluded groups. A trend of increase in "diversity-infusion" was observed among all authors when the content of the textbooks was compared in chronological sequence. The qualitative differences, as constructed for this dissertation, indicate that each textbook constitutes a varied and unique representation of author perspective. The project's contribution to future research is the development of a database of art works and literary sources from the years 1900-2006 that can be used for quantification and for further study.

  18. The Stanford Prison Experiment in Introductory Psychology Textbooks: A Content Analysis

    ERIC Educational Resources Information Center

    Bartels, Jared M.

    2015-01-01

    The present content analysis examines the coverage of theoretical and methodological problems with the Stanford prison experiment (SPE) in a sample of introductory psychology textbooks. Categories included the interpretation and replication of the study, variance in guard behavior, participant selection bias, the presence of demand characteristics…

  19. Quantitative and Qualitative Analysis of Nutrition and Food Safety Information in School Science Textbooks of India

    ERIC Educational Resources Information Center

    Subba Rao, G. M.; Vijayapushapm, T.; Venkaiah, K.; Pavarala, V.

    2012-01-01

    Objective: To assess quantity and quality of nutrition and food safety information in science textbooks prescribed by the Central Board of Secondary Education (CBSE), India for grades I through X. Design: Content analysis. Methods: A coding scheme was developed for quantitative and qualitative analyses. Two investigators independently coded the…

  20. An Analysis of Two Textbooks on the Topic of Intermolecular Forces

    ERIC Educational Resources Information Center

    Tan, Daniel Kim Chwee; Seng, Chan Kim

    2004-01-01

    This paper describes the analysis of two commonly used high school (Grades 11 and 12) chemistry textbooks in Singapore to determine if the content presented in the topic of intermolecular forces is consistent with the concepts and propositional knowledge identified by the authors as essential for the learning and understanding of the topic…

  1. Teaching Prejudice: A Content Analysis of Social Studies Textbooks Authorized for Use in Ontario.

    ERIC Educational Resources Information Center

    McDiarmid, Garnet; Pratt, David

    This report of a study, undertaken at the request of the Ontario Human Rights Commission, details: 1) precedents and historical backgrounds in textbook analysis; 2) the methodology of the present study; and, 3) recommendations based on the findings. Groups selected for study were: Jews, immigrants, Moslems, Negroes, and American Indians. The…

  2. Ideologies of English in a Chinese High School EFL Textbook: A Critical Discourse Analysis

    ERIC Educational Resources Information Center

    Xiong, Tao; Qian, Yamin

    2012-01-01

    In this article we examine ideologies of English in present-day China with a special focus on textbook discourse. The research framework is informed by critical theories on language and education. Critical discourse analysis is applied as a methodological approach characterized by a socially committed attitude in the explanation and interpretation…

  3. Discourse, Cultural Knowledge and Ideology: A Critical Analysis of Chinese Language Textbooks

    ERIC Educational Resources Information Center

    Liu, Yongbing

    2005-01-01

    This article examines discourses of cultural knowledge and ideology in Chinese language textbooks currently used for primary school students nationwide in China. Within the framework of critical curriculum theory and using critical discourse analysis, this article critically investigates how discourses of cultural knowledge are constructed and…

  4. Common and Textbook Foil Groupings: A Social Network Approach to Distractor Analysis

    ERIC Educational Resources Information Center

    Pearlman, Leslie

    2011-01-01

    This dissertation examines the patterns and types of mistakes students make on a large-scale mathematics assessment, and puts these patterns into perspective based on the textbook used and the specific content covered in a student's classroom. In order to investigate the nature of these patterns, I employ a method of analysis originally designed…

  5. Methodological Choices in the Content Analysis of Textbooks for Measuring Alignment with Standards

    ERIC Educational Resources Information Center

    Polikoff, Morgan S.; Zhou, Nan; Campbell, Shauna E.

    2015-01-01

    With the recent adoption of the Common Core standards in many states, there is a need for quality information about textbook alignment to standards. While there are many existing content analysis procedures, these generally have little, if any, validity or reliability evidence. One exception is the Surveys of Enacted Curriculum (SEC), which has…

  6. Whatever Happened to Exploratory Data Analysis? An Evaluation of Behavioral Science Statistics Textbooks.

    ERIC Educational Resources Information Center

    Curtis, Deborah A.; Araki, Cheri J.

    The purpose of this research was to analyze recent statistics textbooks in the behavioral sciences in terms of their coverage of exploratory data analysis (EDA) philosophy and techniques. Twenty popular texts were analyzed. EDA philosophy was not addressed in the vast majority of texts. Only three texts had an entire chapter on EDA. None of the…

  7. Cultural Parallax and Content Analysis: Images of Black Women in High School History Textbooks

    ERIC Educational Resources Information Center

    Woyshner, Christine; Schocker, Jessica B.

    2015-01-01

    This study investigates the representation of Black women in high school history textbooks. To examine the extent to which Black women are represented visually and to explore how they are portrayed, the authors use a mixed-methods approach that draws on analytical techniques in content analysis and from visual culture studies. Their findings…

  8. Comparative Critical Discourse Analysis of Student and Teacher Editions of Secondary Christian American Literature Textbooks

    ERIC Educational Resources Information Center

    Agiro, Christa Preston

    2012-01-01

    This article discusses the comparative application of critical discourse analysis to student and teacher editions of the two most widely used high school American literature textbooks by Christian publishers, examining them through the lens of critical theory. The study examined all parts of the student and teacher editions, excepting literary…

  9. Sociology and the Environment: An Analysis of Coverage in Introductory Sociology Textbooks

    ERIC Educational Resources Information Center

    Lewis, Tammy L.; Humphrey, Craig R.

    2005-01-01

    Using content analysis, this research examines the impact of the first 25 years of environmental sociology research on current introductory sociology textbooks. The investigators searched the texts for 40 key concepts in environmental sociology and for the inclusion of works by 20 award-winning environmental sociologists. On average, the texts…

  10. Reproducing Gender Inequality: A Critical Discourse Analysis of a Turkish Adult Literacy Textbook. Research Brief #7

    ERIC Educational Resources Information Center

    Gungor, Ramazan; Prins, Esther

    2011-01-01

    Adult education curricula such as literacy textbooks present blueprints for living, including different ways of being and relating as men and women. However, educators and scholars seldom consider the underlying assumptions about gender in literacy workbooks, especially in international settings. This study used Critical Discourse Analysis (CDA)…

  11. Gender Issues in Psychology: A Content Analysis of Introductory Psychology Textbooks.

    ERIC Educational Resources Information Center

    Connor-Greene, Patti; And Others

    This paper assesses the attention given to gender issues in 17 psychology textbooks published between 1985 and 1987 and used in college undergraduate introductory courses. The methodology used was the analysis of content and research citations. Specific issues that were examined included: (1) the explanation of the distinction between gender and…

  12. Three Decades of Social Psychology: A Longitudinal Analysis of Baron and Byrne's Textbook

    ERIC Educational Resources Information Center

    Christopher, Andrew N.; Marek, Pam; Dobbins, Emily M.; Jason R., Jason R.

    2004-01-01

    We analyzed the first 10 editions of Baron and Byrne's social psychology textbook. Modeling our methodology on Griggs and Jackson's (1996) longitudinal analysis of Hilgard's (1953) introductory psychology text, we ascertained changes in objective features, content, and contributors and contributions to social psychology. Changes in objective…

  13. Assessing Coverage of Maslow's Theory in Educational Psychology Textbooks: A Content Analysis

    ERIC Educational Resources Information Center

    Wininger, Steven R.; Norman, Antony D.

    2010-01-01

    Although Maslow's hierarchy of needs theory (HNT) is one of the most prevalent theories in psychology, the authors argued that it is also one of the most misinterpreted or misrepresented, particularly in educational psychology textbooks. Therefore, after carefully reading Maslow's writings on HNT they conducted a content analysis of 18 educational…

  14. Experiences of Students with Visual Impairments in Adoption of Digital Talking Textbooks: An Interpretative Phenomenological Analysis

    ERIC Educational Resources Information Center

    Hussin, Ahamad; Folkestad, James E.; Makela, Carole

    2013-01-01

    This study was conducted to explore the experiences of Malaysian secondary students with visual impairments in using digital talking textbooks (DTTs) to assist their learning. Data were obtained from individual in-depth interviews. An interpretative phenomenological analysis (IPA) was used to understand the findings and confirm the emergent…

  15. A Content Analysis of Asian-Pacific Folk Songs in American Elementary Music Textbooks from 1967 to 2008

    ERIC Educational Resources Information Center

    Culig, Edna Aurora C.

    2012-01-01

    In this quanto-historical study, the author conducted a content analysis of Asian-Pacific (AP) folk songs in 18 American elementary music textbooks published from 1967 to 2008. The researcher addressed the questions: (1) To what degree are AP folk songs included in the printed and recorded repertoire of elementary music textbook series published…

  16. America in World War II: An Analysis of History Textbooks from England, Japan, Sweden, and the United States

    ERIC Educational Resources Information Center

    Foster, Stuart; Nicholls, Jason

    2005-01-01

    This study examined how textbooks from England, Japan, Sweden, and the United States portray America's role in World War II. Analysis of the central story lines revealed that historical information purveyed to students in different nations varies considerably. Accordingly, U.S. textbooks emphasize the significant and pre-eminent role that the…

  17. Towards a Cultural Understanding of the Disability and Deaf Experience: A Content Analysis of Introductory Multicultural Education Textbooks

    ERIC Educational Resources Information Center

    Johnson, John R.; Nieto, Jesus

    2007-01-01

    This paper reports the findings of a simple normative content analysis of 11 multicultural education textbooks to determine the extent to which disability and deaf culture are represented. In addition, this study examines multicultural education textbooks to assess the extent to which perspectives of members of the disability and deaf communities…

  18. A historical discourse analysis of the cancerous and non-cancerous body in secondary biology textbooks

    NASA Astrophysics Data System (ADS)

    Bowers, Neil Thomas

    This dissertation applies the archeological concepts developed by Michel Foucault to a study of thirteen biology textbooks (1993-2004) in order to develop an understanding of 'purchased truths' concerning cancer. This study focuses on the construction of the health/illness dialogue concerning cancer within the textbooks and not the meaning that the individual makes from reading the text; as such this study concerns itself with social truths rather than the search for an individual awareness of names, dates, or places. This study investigates the practices that allow the creation of dialogues that are inserted into a biology textbook and looks at how discursive formations create the 'truth regime' from which the biology textbook is said to speak. Using the Foucaultian themes of 'event', 'emergence', 'enunciation', and 'exteriority' a new reading of topics concerning cancer emerge from biology textbooks. Cancer is a disease that will impact the lives of countless individuals but coverage devoted to the pathology of cancer in secondary biology textbooks is very limited and no study textbook devoted a whole chapter to the discussion of cancer. There is an identified reduction in the number of pages and depth of coverage devoted to cancer in the newer biology texts compared to the older texts. Humans are pictured more than plants or animals in presentations concerning cancer with emphasis being placed on the digitalization of human cells via the scanning electron microscope. When the whole body is presented it is seldom located within the technology of disease diagnosis and treatment but rather is posed for specific social control. Just as each digitized picture of the cancerous cell in the texts is used to create a story so too are the pictures of the whole body in action. Possible story lines offered by the publishing houses concerning the reaction of the body to cancer are shown to intermingle with risk factor analysis to project a sense of Foucaultian

  19. The Path of History: Narrative Analysis of History Textbooks--A Case Study of Belgian History Textbooks (1945-2004)

    ERIC Educational Resources Information Center

    Vanhulle, Bert

    2009-01-01

    The philosophical background of the subject history in secondary education has been mainly addressed through research based on "obvious" source types (curricula, discussions in committees or journals, ...). This article proposes a narrative method of analysing history textbooks in order to study the underlining historical philosophy of history…

  20. A content analysis of physical science textbooks with regard to the nature of science and ethnic diversity

    NASA Astrophysics Data System (ADS)

    Brooks, Kristine M.

    The goal of science education is the preparation of scientifically literate students (Abd-El-Khalick & Lederman, 2000, & American Association for the Advancement of Science (AAAS), 1990). In order to instruct students in the nature of science with its history, development, methods and applications, science teachers use textbooks as the primary organizer for the curriculum (Chippetta, Ganesh, Lee, & Phillips, 2006). Science textbooks are the dominant instructional tool that exerts great influence on instructional content and its delivery (Wang, 1998). Science and science literacy requires acquiring knowledge about the natural world and understanding its application in society, or, in other words, the nature of science. An understanding of the nature of science is an important part of science literacy (Abd-El-Khalik & Lederman, 2000, & AAAS, 1990). The nature of science has four basic themes or dimensions: science as a body of knowledge, science as a way of thinking, science as a way of investigating, and science with its interaction with technology and society (Chippetta & Koballa, 2006). Textbooks must relay and incorporate these themes to promote science literacy. The results from this content analysis provide further insights into science textbooks and their content with regard to the inclusion of the nature of science and ethnic diversity. Science textbooks usually downplay human influences (Clough & Olson, 2004) whether as part of the nature of science with its historical development or its interaction with societies of diverse cultures. Minority students are underperforming in science and science is divided on ethnic, linguistic, and gender identity (Brown, 2005). Greater representations of diversity in curriculum materials enable minority students to identify with science (Nines, 2000). Textbooks, with their influence on curriculum and presentation, must include links for science and students of diverse cultures. What is the balance of the four aspects of the

  1. Quantitative Analysis of Representations of Nature of Science in Nordic Upper Secondary School Textbooks Using Framework of Analysis Based on Philosophy of Chemistry

    ERIC Educational Resources Information Center

    Vesterinen, Veli-Matti; Aksela, Maija; Lavonen, Jari

    2013-01-01

    The aim of this study was to assess how the different aspects of nature of science (NOS) were represented in Finnish and Swedish upper secondary school chemistry textbooks. The dimensions of NOS were analyzed from five popular chemistry textbook series. The study provides a quantitative method for analysis of representations of NOS in chemistry…

  2. A Historical Analysis of Electric Currents in Textbooks: A Century of Influence on Physics Education.

    ERIC Educational Resources Information Center

    Stocklmayer, Susan; Treagust, David

    1994-01-01

    Analyzes the presentations of electric current in physics textbooks. Concludes that from 1891 to 1991 most textbooks used a fluid model, which predated Faraday, for explaining direct-current circuits. (PR)

  3. Decolonizing Education: A Critical Discourse Analysis of Post-Secondary Humanities Textbooks

    ERIC Educational Resources Information Center

    Harper, Kimberly C.

    2012-01-01

    This dissertation examines nine post-secondary humanities textbooks published between 2001 and 2011 using an approach that includes both qualitative and quantitative methodology to analyze the written and visual content of humanities textbooks. This dissertation engages in current debates that address bias in humanities textbooks and contributes…

  4. An Evaluating Study on ESP Medical Textbook: Instructors and Learners' Needs Analysis

    ERIC Educational Resources Information Center

    Salehi, Hadi; Khadivar, Zahra; Babaee, Ruzbeh; Singh, Hardev Kaur Ap Jujar

    2015-01-01

    Textbook evaluation is determining the productivity and value of textbooks with respect to stated objectives, standards, or criteria. This study was an attempt to evaluate the ESP medical textbook, which is taught at some universities in Iran. To gather the necessary data, two researcher-made questionnaires and one interview protocol were used.…

  5. A Content Analysis of the Presentation of the Mole Concept in Chemistry Textbooks.

    ERIC Educational Resources Information Center

    Staver, John R.; Lumpe, Andrew T.

    1993-01-01

    Examined the means used by textbook authors to introduce, define, and explain the mole concept in high school and introductory college chemistry textbooks (n=29). Among the conclusions are that the presentation and definitions of moles in the textbooks are most frequently abstract and theoretical in nature. (PR)

  6. An Analysis of Misconceptions in Science Textbooks: Earth Science in England and Wales

    ERIC Educational Resources Information Center

    King, Chris John Henry

    2010-01-01

    Surveys of the earth science content of all secondary (high school) science textbooks and related publications used in England and Wales have revealed high levels of error/misconception. The 29 science textbooks or textbook series surveyed (51 texts in all) showed poor coverage of National Curriculum earth science and contained a mean level of one…

  7. An Analysis of Global Problems Issues in Sixth and Seventh Grade Science Textbooks.

    ERIC Educational Resources Information Center

    Hamm, Mary; Adams, Dennis

    The study examines the extent to which the global issues of population growth, world hunger, air quality and atmosphere, and water resources were treated in sixth and seventh grade science textbooks. Ten textbooks were examined by five raters to determine the amount of content presented by different textbooks on global issues, the number of pages…

  8. A Social Semiotic Approach to Textbook Analysis: The Construction of the Discourses of Pharmacology

    ERIC Educational Resources Information Center

    Weiss, Rachel; Archer, Arlene

    2014-01-01

    This article takes a multimodal social semiotic approach to analysing educational textbooks. We are interested in the ways in which educational textbooks contribute to designing our social futures by constructing both the student and the discipline in a particular manner. While a textbook's primary purpose is to provide the reader with…

  9. An analysis of South African Grade 9 natural sciences textbooks for their representation of nature of science

    NASA Astrophysics Data System (ADS)

    Dewnarain Ramnarain, Umesh; Chanetsa, Tarisai

    2016-04-01

    This article reports on an analysis and comparison of three South African Grade 9 (13-14 years) Natural Sciences textbooks for the representation of nature of science (NOS). The analysis was framed by an analytical tool developed and validated by Abd-El-Khalick and a team of researchers in a large-scale study on the high school textbooks in the USA. The three textbooks were scored on targeted NOS aspects on a scale of -3 to +3 that reflected the explicitness with which these aspects were addressed. The analysis revealed that the textbooks poorly depict NOS, and in particular, there was scant attention given to the social dimension of science, science versus pseudoscience and the 'myth of the scientific method'. The findings of this study are incommensurate with the strong emphasis in a reformed school science curriculum that underlies the need for learners to understand the scientific enterprise, and how scientific knowledge develops. In view of this, the findings of this research reinforce the need for a review on the mandate given to textbook publishers and writers so that a stronger focus be placed on the development of materials that better represent the tenets of NOS.

  10. Whose History? An Analysis of the Korean War in History Textbooks from the United States, South Korea, Japan, and China

    ERIC Educational Resources Information Center

    Lin, Lin; Zhao, Yali; Ogawa, Masato; Hoge, John; Kim, Bok Young

    2009-01-01

    This article examines how recent history textbooks from the United States, Japan, China, and South Korea present the Korean War. The comparative analysis focuses on four areas: the causes of the Korean War, American involvement in the war, Chinese involvement in the war, and the results of the war. Analysis of the central story lines reveals that…

  11. An analysis of how electromagnetic induction and Faraday's law are presented in general physics textbooks, focusing on learning difficulties

    NASA Astrophysics Data System (ADS)

    Guisasola, Jenaro; Zuza, Kristina; Almudi, José-Manuel

    2013-07-01

    Textbooks are a very important tool in the teaching-learning process and influence important aspects of the process. This paper presents an analysis of the chapter on electromagnetic induction and Faraday's law in 19 textbooks on general physics for first-year university courses for scientists and engineers. This analysis was based on criteria formulated from the theoretical framework of electromagnetic induction in classical physics and students' learning difficulties concerning these concepts. The aim of the work presented here is not to compare a textbook against the ideal book, but rather to try and find a series of explanations, examples, questions, etc that provide evidence on how the topic is presented in relation to the criteria above. It concludes that despite many aspects being covered properly, there are others that deserve greater attention.

  12. Textbook America.

    ERIC Educational Resources Information Center

    Karp, Walter

    1980-01-01

    Focuses on how political attitudes have been influenced by American history textbooks at various times throughout history. Excerpts from traditional and revisionist textbooks are presented, with emphasis on "America Revised" by Frances FitzGerald. Journal available from Harper's Magazine Co., 2 Park Ave., New York, NY 10016. (DB)

  13. Textbook Deathwatch

    ERIC Educational Resources Information Center

    Salpeter, Judy

    2009-01-01

    Is the print textbook--that old-fashioned, heavy, expensive staple of the 20th-century classroom--soon to be a thing of the past? While it's hard to imagine the K-12 world, known for its resistance to change, throwing out math, language, and science textbooks in favor of digital content, the nation's current fiscal crisis, combined with major…

  14. Indexing of Iranian Publications in Well-known Endodontic Textbooks: A Scientometric Analysis

    PubMed Central

    Kakooei, Sina; Mostafavi, Mahshid; Parirokh, Masoud; Asgary, Saeed

    2016-01-01

    Introduction: Quoting an article in well-known textbooks is held as a credit for that paper. The numbers of Iranian publications mentioned in endodontic textbooks have increased during recent years. The aim of this investigation was to evaluate the number of Iranian articles quoted in eminent endodontic textbooks. Methods and Materials: Three known textbooks (Ingle’s Endodontics, Seltzer and Bender’s Dental Pulp and Cohen’s Pathways of the Pulp) were chosen and all the editions of the textbooks since 2000 were investigated for quoted Iranian publications. Only Iranian authors with affiliations from a domestic university were chosen. All references at the end of each chapter were read by hand searching, and results were noted. The trend and percentage of Iranian publications in different editions of the textbooks were also calculated. The number of citations of these publications in Google Scholar and Scopus databases were also obtained. Results: The number of Iranian publications in all well-known textbooks have notably increased since 2000. The number and percentage of Iranian publications in the latest edition of Cohen’s Pathways of the Pulp was higher compared to other textbooks as well as the previous edition of the same text. Conclusion: Number and percentage of Iranian publications in the field of endodontics in all three textbooks have remarkably increased since 2000. PMID:27471523

  15. A content analysis of physical science textbooks with regard to the nature of science and ethnic diversity

    NASA Astrophysics Data System (ADS)

    Brooks, Kristine M.

    The goal of science education is the preparation of scientifically literate students (Abd-El-Khalick & Lederman, 2000, & American Association for the Advancement of Science (AAAS), 1990). In order to instruct students in the nature of science with its history, development, methods and applications, science teachers use textbooks as the primary organizer for the curriculum (Chippetta, Ganesh, Lee, & Phillips, 2006). Science textbooks are the dominant instructional tool that exerts great influence on instructional content and its delivery (Wang, 1998). Science and science literacy requires acquiring knowledge about the natural world and understanding its application in society, or, in other words, the nature of science. An understanding of the nature of science is an important part of science literacy (Abd-El-Khalik & Lederman, 2000, & AAAS, 1990). The nature of science has four basic themes or dimensions: science as a body of knowledge, science as a way of thinking, science as a way of investigating, and science with its interaction with technology and society (Chippetta & Koballa, 2006). Textbooks must relay and incorporate these themes to promote science literacy. The results from this content analysis provide further insights into science textbooks and their content with regard to the inclusion of the nature of science and ethnic diversity. Science textbooks usually downplay human influences (Clough & Olson, 2004) whether as part of the nature of science with its historical development or its interaction with societies of diverse cultures. Minority students are underperforming in science and science is divided on ethnic, linguistic, and gender identity (Brown, 2005). Greater representations of diversity in curriculum materials enable minority students to identify with science (Nines, 2000). Textbooks, with their influence on curriculum and presentation, must include links for science and students of diverse cultures. What is the balance of the four aspects of the

  16. Variations of Citizenship Education: A Content Analysis of Rights, Obligations, and Participation Concepts in High School Civic Textbooks

    ERIC Educational Resources Information Center

    Gonzales, Marti Hope; Riedel, Eric; Williamson, Ian; Avery, Patricia G.; Sullivan, John L.; Bos, Angela

    2004-01-01

    A quantitative content analysis of three widely adopted high school civics textbooks revealed that concepts associated with traditional liberalism--citizens' rights and freedoms--far outnumber concepts associated with classical republicanism or communitarianism (e.g., civic virtue, the reciprocal relation between citizens' rights and their…

  17. The Power of Knowledge: A Critical Analysis of the Depiction of Ethnic Minorities in China's Elementary Textbooks

    ERIC Educational Resources Information Center

    Chu, Yiting

    2015-01-01

    This study critically analyzes knowledge about: (1) ethnic minority groups; (2) the dominant Han group; and (3) the interaction between ethnic minorities and Han presented in three types of elementary textbooks used in China. The analysis reveals that the knowledge about and the values and beliefs of the Han people are overwhelmingly dominant in…

  18. A Comparative Analysis of Questions in American, Singaporean, and Turkish Mathematics Textbooks Based on the Topics Covered in 8th Grade in Turkey

    ERIC Educational Resources Information Center

    Ozer, Eren; Sezer, Renan

    2014-01-01

    This study offers a comparative analysis of questions found in Turkish, Singaporean, and American mathematics textbooks and workbooks based on topics covered in the 8th grade mathematics curriculum in Turkey. To this end, the study utilizes the 3-dimensional framework developed by Li. When the questions in the textbooks and workbooks…

  19. An Analysis of the Discourses on Attention Deficit Hyperactivity Disorder (ADHD) in US Special Education Textbooks, with Implications for Inclusive Education

    ERIC Educational Resources Information Center

    Freedman, Justin E.

    2016-01-01

    The purpose of this paper is to examine the discourses on attention deficit hyperactivity disorder (ADHD) found in textbooks used in pre-service special education programmes in the USA. Five textbooks are examined with the intent of discovering how ADHD is portrayed to future teachers. A discourse analysis framework is utilised, revealing five…

  20. A Content Analysis Study about the Usage of History of Mathematics in Textbooks in Turkey

    ERIC Educational Resources Information Center

    Eren, Mehmet; Bulut, Mehmet; Bulut, Neslihan

    2015-01-01

    The present study aimed to investigate how history of mathematics was integrated to some mathematics textbooks in Turkey. On this account, four different textbooks with different grade levels were chosen. In total, 42 cases were detected and studied by three researchers. Results indicated that the usage of history of mathematics was materialized…

  1. Faith on the Wane: A Documentary Analysis of Shifting Worldviews in Canadian Textbooks.

    ERIC Educational Resources Information Center

    Van Brummelen, Harro

    1994-01-01

    This documentary study postures Canadian school textbooks as barometers of corporate faith and prevailing world view, tracing the shift toward secularization in 150 years of publication. A perusal of textbooks suggests that the current secularism of school curricula is not neutral and highlights the need to teach about Christianity. (SM)

  2. Ideological Representations of Taiwan's History: An Analysis of Elementary Social Studies Textbooks, 1978-1995

    ERIC Educational Resources Information Center

    Su, Ya-Chen

    2007-01-01

    Textbooks play a central role in Taiwanese education. In the wake of the political reform and social protest movements of the 1970s and 1980s that led to Taiwanese educational reform, critics assert that traditional textbooks reinforce the dominant national Chinese cultural identity without considering the specific perspectives and voices of…

  3. An Analysis of the Statistical Content in Textbooks for Prospective Elementary Teachers

    ERIC Educational Resources Information Center

    Jones, Dustin L.; Jacobbe, Tim

    2014-01-01

    We analyzed the statistical content within mathematics textbooks used in courses for preparing elementary teachers. Six textbooks commonly used in the United States comprised our sample. Each task in statistical sections was analyzed using both the levels of the GAISE framework (Franklin et al. 2007) and phases of the statistical problem solving…

  4. An Analysis of Selected Biology Textbooks for the Treatment of Controversial Issues and Biosocial Problems.

    ERIC Educational Resources Information Center

    Levin, Florence S.; Lindbeck, Joy S.

    1979-01-01

    Analyzes five biology textbooks in 11 categories identified as current controversial issues and biosocial problems. Quantitative ratings for each category, based on total number of textbook pages, are presented for Darwinian evolution, disease states, drugs, environment, human genetics, human reproduction, man in nature, origin of life, population…

  5. Analysis of the Junior Secondary School One (J.S.S. 1) Science Textbook.

    ERIC Educational Resources Information Center

    Otuka, J. O. E.; Nkrumah, Clifford N.

    2001-01-01

    Investigates whether the junior high school textbook 1 meets the requirements of a standards textbook that identifies with 12 criteria set by the Science Teachers Association of Nigeria (STAN). Includes the criteria of coverage of topics in the syllabus, currency suitability of language, and coherency. (Contains 18 references.) (Author/YDS)

  6. The Introduction of Real Numbers in Secondary Education: An Institutional Analysis of Textbooks

    ERIC Educational Resources Information Center

    González-Martín, Alejandro S.; Giraldo, Victor; Souto, Alexandre M.

    2013-01-01

    In this paper we analyse the introduction of irrational and real numbers in secondary textbooks, and specifically the propositions on how these should be taught, in a sample of Brazilian textbooks used in state schools and approved by the Ministry of Education. The analyses discussed in this paper follow an institutional perspective (using…

  7. An Exploratory Analysis of Textbook Usage and Study Habits: Misperceptions and Barriers to Success

    ERIC Educational Resources Information Center

    Berry, Thomas; Cook, Lori; Hill, Nancy; Stevens, Kevin

    2011-01-01

    The authors explore how and to what extent students use their textbooks. Data was collected through a survey regarding when reading is primarily done, how the textbook is used for studying, and which specific study strategies the students used. The results indicate that students know it is important to read, know the professor expects them to…

  8. An Analysis of Global Problem Issues in Sixth- and Seventh-Grade Textbooks.

    ERIC Educational Resources Information Center

    Hamm, Mary; Adams, Dennis

    1989-01-01

    Examined are the global issues of population growth, world hunger, air quality and atmosphere, and water resources in 10 middle school science textbooks. Less than two percent of text pages were devoted to these issues and no significant differences were found between textbook series. (Author/YP)

  9. A Pedagogic Corpus Analysis: Modal Auxiliary Verbs in Malaysian English Textbooks

    ERIC Educational Resources Information Center

    Khojasteh, Laleh; Mukundan, Jayakaran

    2011-01-01

    Using corpus approach, over the past two decades, a growing number of researchers started to blame textbooks for neglecting important information on the use of grammatical structures in real language use and provided ample information about the mismatch between language used in textbooks and real language in use. Likewise, the prescribed Malaysian…

  10. What Lithuanian Pupils Learn about Disability: Analysis of Attitudes and Content of Textbooks

    ERIC Educational Resources Information Center

    Ruskus, Jonas; Poceviciene, Rasa

    2006-01-01

    (Purpose) The purpose of this paper was to reveal how stereotyped representations of disability are manifested in school curriculum through the textbook content and the attitudes of participants of education. Research questions of this study were: How is disability represented in Lithuanian textbooks? What is the real discourse--that of…

  11. Intercultural Exposure through English Language Teaching: An Analysis of an English Language Textbook in Bangladesh

    ERIC Educational Resources Information Center

    Siddiqie, Shamsun Akhter

    2011-01-01

    The treatment of culture in foreign language textbooks is comparatively a new trend in English Language Teaching (ELT) which is based on the growing consensus that language textbooks should attempt to raise students' awareness of international culture as well as that of their own. Being influenced by this thought, Bangladesh too like many other…

  12. Analysis of Preferred Textbooks in Speech-Language Pathology and Audiology.

    ERIC Educational Resources Information Center

    Condon, Marilyn

    Directors of 100 undergraduate training programs in speech language pathology and audiology were surveyed about the readability level and faculty satisfaction with currently used textbooks. For each of seven fundamental courses, Ss were asked to indicate the academic level at which students typically completed the courses, the textbook currently…

  13. [A Comparative Analysis of Shushi-Sanbaron and the Original German Textbook Lehrbuch der Hebammenkunst].

    PubMed

    Tsukisawa, Miyoko

    2015-12-01

    In this paper we present a comparative analysis of Shushi-Sanbaron (Japanese characters) and the original book, Lehrbuch der Hebammenkunst. After the legal reorganisation of the medical professions in Germany in the mid nineteenth century, the textbook Lehrbuch der Hebammenkunst was published for certified midwives. This book has two distinct characteristics; it was written from the physician's standpoint regarding the importance of the professional hierarchy of obstetricians and midwives, and it also served as a practical educator for midwives. Lehrbuch der Hebammenkunst was translated into Japanese for use as a textbook after the introduction of systematised education for certified midwives by the Tokyo-fu Hospital. It was published between 1877 and 1878 under title Shushi-Sanbaron. We clarify that Shushi-Sanbaron was not a literal translation of the original book, but was largely rewritten by two physicians in order to modify it to the Japanese situation after the introduction of modern medicine. Japanese physicians made serious modifications of the chapters that dealt with deviations from the regular course of birth and abnormal conditions of postpartum women and new-born babies, and they added theoretical explanations about obstetrics. As a result, Shushi-Sanbaron made two contradicting demands to midwives. On the one hand, midwives were urged to attain high-level theoretical knowledge and skill in obstetrics in order to--independently--help pregnant women and new-born babies in a crisis. On the other hand, as lower participants in the medical hierarchy, they were told to assume a dependent and uncritical attitude towards physicians. PMID:27089735

  14. A content analysis of the presentation of the mole concept in chemistry textbooks

    NASA Astrophysics Data System (ADS)

    Staver, John R.; Lumpe, Andrew T.

    The goal of this study was to examine the means used by textbook authors to introduce, define, and explain the mole concept in high school and introductory college chemistry textbooks. The analysis was framed by four questions:1How is the mole defined?2What concepts about the atom are introduced prior to the mole?3Is Avogadro's constant presented as an experimentally determined value?4What is the context for introducing the mole?Twenty-nine high school and introductory college level chemistry texts were examined. After independent reading of appropriate sections of each text, discussion of differences, second or third readings of texts, and subsequent discussions, both authors reach 100% agreement concerning the results. Major conclusions were: Two ways of defining the mole dominate the texts. One way defines the mole as Avogadro's number (6.02 × 1023) particles; the other method defines the mole in terms of carbon-12. All texts that present a definition in terms of C-12 introduce and define concepts about the atom prior to introducing the mole. Most texts at all levels point out that the value 6.02 × 1023 is an experimentally determined quantity. Nearly all texts discuss the mole in relation to die problem of finding a way to count particles that are too small to be directly weighed. Most texts also use a familiar counting unit, such as the dozen, to introduce the mole by analogy. Four issues were discussed: (a) the defining attributes of the mole concept itself and the cognitive requirements for comprehending the two most frequently used definitions; (b) the connection between the definition of the mole presented in the text and the concepts about atoms that are introduced before the mole concept is developed; (c) the experimental nature of Avogadro's number; and (d) the context or setting for developing the mole concept.

  15. Quantitative Analysis of Representations of Nature of Science in Nordic Upper Secondary School Textbooks Using Framework of Analysis Based on Philosophy of Chemistry

    NASA Astrophysics Data System (ADS)

    Vesterinen, Veli-Matti; Aksela, Maija; Lavonen, Jari

    2013-07-01

    The aim of this study was to assess how the different aspects of nature of science (NOS) were represented in Finnish and Swedish upper secondary school chemistry textbooks. The dimensions of NOS were analyzed from five popular chemistry textbook series. The study provides a quantitative method for analysis of representations of NOS in chemistry textbooks informed by domain-specific research on the philosophy of chemistry and chemical education. The selection of sections analyzed was based on the four themes of scientific literacy: knowledge of science, investigate nature of science, science as a way of thinking, and interaction of science, technology and society. For the second round of analysis the theme of science as a way of thinking was chosen for a closer inspection. The units of analysis in this theme were analyzed using seven domain specific dimensions of NOS: tentative, empirical, model-based, inferential, technological products, instrumentation, and social and societal dimensions. Based on the inter-rater agreement, the procedure and frameworks of analysis presented in this study was a reliable way of assessing the emphasis given to the domain specific aspects of NOS. All textbooks have little emphasis on the theme science as a way of thinking on a whole. In line with the differences of curricula, Swedish textbooks emphasize the tentative dimension of NOS more than Finnish textbooks. To provide teachers with a sufficiently wide variety of examples to discuss the different dimensions of NOS changes to the national core curricula are needed. Although changing the emphasis of the curricula would be the most obvious way to affect the emphasis of the textbooks, other efforts such as pre- and in-service courses for developing teachers understanding of NOS and pedagogic approaches for NOS instruction to their classroom practice might also be needed.

  16. Learning Objectives and Testing: An Analysis of Six Principles of Economics Textbooks, Using Bloom's Taxonomy.

    ERIC Educational Resources Information Center

    Karns, James M. L.; And Others

    1983-01-01

    Significant differences were found between the stated objectives of most college level economics textbooks and the instruments included in the instructor's manuals to measure student achievement. (Author/RM)

  17. Evaluating High School World History Textbooks.

    ERIC Educational Resources Information Center

    Abrahamson, Brant W.

    1986-01-01

    Presents the annecdotal results of an analysis of 11 major publishers' high school world history textbooks. Provides criteria for evaluating such books and concludes that, as a group, these textbooks promoted Western ethnocentrism. (JDH)

  18. A gender analysis of secondary school physics textbooks and laboratory manuals

    NASA Astrophysics Data System (ADS)

    Kostas, Nancy Ann

    Secondary school physics textbooks and laboratory manuals were evaluated for gender balance. The textbooks and manuals evaluated were all current editions available at the time of the study with copyrights of 1988 to 1992. Illustrations, drawings and photographs were judged gender balanced based on the number of men and women, boys and girls shown in both active and passive roles. Illustrations, drawings and photographs were also evaluated by the number of male and female scientists identified by name. The curricular content of the textbooks was analyzed for gender balance by three criteria: the number of named male and female scientists whose accomplishments were described in the text; the number of careers assigned to men and women; and the number of verbal analogies assigned to girls interests, boys interests or neutral interests. The laboratory activities in the manuals were categorized as demonstrations, experiments and observations. Three of each of these types of activities from each manual were analyzed for skills and motivating factors important to girls as identified by Potter and Rosser (1992). Data were analyzed by use of descriptive statistics of frequencies, means and chi-square goodness of fit. The.05 level of significance was applied to all analyses based upon an expected frequency of 50 - 50 percentage of men and women and a 4.5 percent for women scientists to 95.5 percent for men scientists. The findings were as follows. None of the textbooks had a balance of men/women, boys/girls in the illustrations, drawings and photographs. The Hewitt (Scott-Foresman, 1989) textbook was the only textbook with no significant difference. Using the expected frequency for male and female scientists, two textbooks were gender balanced for illustrations, drawings and photographs while all textbooks were gender balanced for described accomplishments of scientists. The Hewitt (Scott Foresman, 1989) textbook had the only gender balanced representation of careers

  19. Pedagogic discourse in introductory classes: Multi-dimensional analysis of textbooks and lectures in biology and macroeconomics

    NASA Astrophysics Data System (ADS)

    Carkin, Susan

    The broad goal of this study is to represent the linguistic variation of textbooks and lectures, the primary input for student learning---and sometimes the sole input in the large introductory classes which characterize General Education at many state universities. Computer techniques are used to analyze a corpus of textbooks and lectures from first-year university classes in macroeconomics and biology. These spoken and written variants are compared to each other as well as to benchmark texts from other multi-dimensional studies in order to examine their patterns, relations, and functions. A corpus consisting of 147,000 words was created from macroeconomics and biology lectures at a medium-large state university and from a set of nationally "best-selling" textbooks used in these same introductory survey courses. The corpus was analyzed using multi-dimensional methodology (Biber, 1988). The analysis consists of both empirical and qualitative phases. Quantitative analyses are undertaken on the linguistic features, their patterns of co-occurrence, and on the contextual elements of classrooms and textbooks. The contextual analysis is used to functionally interpret the statistical patterns of co-occurrence along five dimensions of textual variation, demonstrating patterns of difference and similarity with reference to text excerpts. Results of the analysis suggest that academic discourse is far from monolithic. Pedagogic discourse in introductory classes varies by modality and discipline, but not always in the directions expected. In the present study the most abstract texts were biology lectures---more abstract than written genres of academic prose and more abstract than introductory textbooks. Academic lectures in both disciplines, monologues which carry a heavy informational load, were extremely interactive, more like conversation than academic prose. A third finding suggests that introductory survey textbooks differ from those used in upper division classes by being

  20. FFTF Final Safety Analysis Report Amendment 81 [SEC 1 & 2

    SciTech Connect

    DAUTEL, W.A.

    2002-01-10

    Since the last reactor operation of FFTF in March of 1992, the FFTF has either been in a programmatic status of Standby or Shutdown. The facility hazards have decreased markedly. Rather than making extensive Final Safety Analysis Report (FSAR) changes, Appendix G was prepared to reflect the design and operation during Standby or Shutdown. Appendix G describes the application of the entire FSAR for the current configuration, accounting for the natural reduction in hazards and new system configurations associated with Standby/Shutdown. The technical system chapters and the safety analysis chapter of the FSAR describe how the design and operation fulfilled the requirements necessary to support reactor operation; this information is retained for design basis and historical information. This Final Safety Analysis Report (FSAR) is submitted per the requirements of Paragraph 014, Energy Research and Development Administration (ERDA) Manual Chapter 0540, ''Safety of ERDA-Owned Reactors.'' This FSAR and its supporting documentation provide a complete description and safety evaluation of the site, plant design, normal and emergency operations, potential accidents and predicted consequences of such accidents, and the means that will prevent such accidents and/or reduce their consequences to an acceptable level.

  1. Chemistry and Chemical Education Through Text and Image: Analysis of Twentieth Century Textbooks Used in Brazilian Context

    NASA Astrophysics Data System (ADS)

    Souza, Karina Ap F. D.; Porto, Paulo Alves

    2012-05-01

    Assuming that textbooks give literary expression to cultural and ideological values of a nation or group, we propose the analysis of chemistry textbooks used in Brazilian universities throughout the twentieth century. We analyzed iconographic and textual aspects of 31 textbooks which had significant diffusion in the context of Brazilian universities at that period. As a result of the iconographic analysis, nine categories of images were proposed: (1) laboratory and experimentation, (2) industry and production, (3) graphs and diagrams, (4) illustrations related to daily life, (5) models, (6) illustrations related to the history of science, (7) pictures or diagrams of animal, vegetable or mineral samples, (8) analogies and (9) concepts of physics. The distribution of images among the categories showed a different emphasis in the presentation of chemical content due to a commitment to different conceptions of chemistry over the period. So, we started with chemistry as an experimental science in the early twentieth century, with an emphasis change to the principles of chemistry from the 1950s, culminating in a chemistry of undeniable technological influence. Results showed that reflections not only on the history of science, but on the history of science education, may be useful for the improvement of science education.

  2. Multidirectional War Narratives in History Textbooks

    ERIC Educational Resources Information Center

    van der Vlies, Tina

    2016-01-01

    This article aims to contribute to the field of textbook research by exploring a new approach in textbook analysis. Inspired by Michael Rothberg's concept of multidirectional memory, this article examines multidirectional narratives in history textbooks: narratives that combine different histories, places and times in a productive way. They…

  3. United States History Textbooks: Cloned Mediocrity.

    ERIC Educational Resources Information Center

    Siler, Carl R.

    1990-01-01

    Using content analysis, presents a study of 14 U.S. history textbooks. Analyzes textbook treatment of the Declaration of Independence, the atomic bomb, and the Holocaust. Examines nontextual materials. Finds errors of omission, boring writing styles, and a basic similarity between the textbooks. (RW)

  4. An analysis of global problem issues in sixth-and seventh-grade textbooks

    NASA Astrophysics Data System (ADS)

    Hamm, Mary; Adams, Dennis

    The study examines the extent to which the global issues of population growth, world hunger, air quality and atmosphere, and water resources were treated in sixth- and seventh-grade science textbooks. Ten textbooks were examined by five raters to determine the amount of content presented by different textbooks on global issues, the number of pages of content devoted to each issue, and the degree of depth in which issues were treated. Differences between grade levels were also explored. Of the 4,393 pages of content analyzed, less than 2 percent was devoted to these issues identified as the most serious human problems. No significant differences were found between textbook series. Significant differences were found in the number of pages of content presented on each issue. Most of the content fell into the categories of water resources, population growth, air quality, and atmosphere. The issue of war technology had the least amount of content. Distribution of content did not vary by grade level. Both levels addressed the issues of population growth, air quality, and water resources with a greater degree of depth than the issue of world hunger or war technology. The study concludes that the most widely used textbooks at the sixth- and seventh-grade levels avoid serious discussion of major global problems. And like the career indecision of a recent Miss America contestant, purchasers don't seem to be able to decide whether they want science textbooks to be a brain surgeon or a movie actress. Implications stemming from this dichotomy and its relationship to future science education curricular are also explored.

  5. Considerations of multicultural science and curriculum reform: A content analysis of state-adopted biology textbooks in Florida

    NASA Astrophysics Data System (ADS)

    Delgato, Margaret H.

    The purpose of this investigation was to determine the extent to which multicultural science education, including indigenous knowledge representations, had been infused within the content of high school biology textbooks. The study evaluated the textbook as an instructional tool and framework for multicultural science education instruction by comparing the mainstream content to indigenous knowledge perspectives portrayed in the student and teacher editions of 34 textbooks adopted in Florida within the last four adoption cycles occurring from 1990 to 2006. The investigation involved a content analysis framed from a mixed methods approach. Emphasis was placed, in consideration of the research questions and practicality of interpreting text with the potential for multiple meanings, within qualitative methods. The investigation incorporated five strategies to assess the extent of multicultural content: (1) calculation of frequency of indigenous representations through the use of a tally; (2) assessment of content in the teacher editions by coding the degree of incorporation of multicultural content; (3) development of an archaeology of statements to determine the ways in which indigenous representations were incorporated into the content; (4) use of the Evaluation Coefficient Analysis (ECO) to determine extent of multicultural terminologies within content; and (5) analysis of visuals and illustrations to gauge percentages of depictions of minority groups. Results indicated no solid trend in an increase of inclusion of multicultural content over the last four adoption cycles. Efforts at most reduced the inclusion of indigenous representations and other multicultural content to the level of the teacher edition distributed among the teacher-interleafed pages or as annotations in the margins. Degree of support of multicultural content to the specific goals and objectives remained limited across all four of the adoption cycles represented in the study. Emphasis on

  6. A Textbook Analysis of Travel & Tourism Textbooks from the Perspective of University Students' Attitudes towards English as a Foreign Language Learning

    ERIC Educational Resources Information Center

    Garcia Laborda, Jesus

    2005-01-01

    In general, ESP textbooks tend to reflect methodological trends, educational fashions and changing contents. Undeniably, their quality has increased in the last 15 years and they tend to cater for most students' needs regardless of the pupils' field of study. However, those related to English teaching and learning for tourism studies do not…

  7. A Comparative Analysis of Geometry Education on Curriculum Standards, Textbook Structure, and Textbook Items between the U.S. and Korea

    ERIC Educational Resources Information Center

    Choi, Kyong-Mi; Park, Hye-Jin

    2013-01-01

    This study compares American and Korean curriculum standards, textbooks, and geometry items to help explain the consistent differences that have been found between the achievement levels of U.S. and Korean students in the Program for International Student Assessment (PISA) mathematics. Since PISA measures the mathematical proficiency of…

  8. Designations Analysis of Selected College Health Textbooks for Content Relating to "Healthy People."

    ERIC Educational Resources Information Center

    Huetteman, Julie Doidge; And Others

    The consistency of content areas was assessed for six college health textbooks published between 1980 and 1987. Texts were analyzed to determine coverage of ten selected content areas: (1) motor vehicle accidents; (2) teenage pregnancy; (3) suicide and homicide; (4) alcohol and drug misuse; (5) smoking; (6) nutrition; (7) exercise and fitness; (8)…

  9. Analysis of Narrative Texts in Secondary School Textbooks in Terms of Values Education

    ERIC Educational Resources Information Center

    Sallabas, Muhammed Eyyup

    2013-01-01

    Texts have a crucial place in language education and probably they are the most important means of education. Students at the primary and secondary education ages mostly read narrative texts like short stories, poems and fictional books. This study attempts to assess value transfer in narrative texts at the secondary education textbooks. Our study…

  10. Assessing "Herstory" of WWII: Content Analysis of High School History Textbooks

    ERIC Educational Resources Information Center

    Gordy, Laurie; Hogan, Jennifer; Pritchard, Alice

    2004-01-01

    Much of what U.S. students know about history is shaped by the textbook presentation of the subject. By high school, students should be exposed to an inclusive view of U.S. history. Previous research suggests that U.S. history has often centered on the stories of men, particularly from the perspective of white men in positions of power. It is…

  11. High School World History Textbooks: An Analysis of Content Focus and Chronological Approaches

    ERIC Educational Resources Information Center

    Marino, Michael P.

    2011-01-01

    Research about social studies textbooks overwhelmingly supports the conclusion that these books are unpopular and often the subject of intense criticisms. These criticisms concern anything ranging from the language they employ, to the way they are utilized by teachers, to the undue influence they exert on shaping and defining curriculum. This…

  12. An Analysis of Chinese Primary Reading and Writing Textbooks in the People's Republic of China.

    ERIC Educational Resources Information Center

    Sheridan, E. Marcia

    This paper analyses elementary school Chinese language textbooks for teaching reading and writing in primary grades in the People's Republic of China. The paper begins by examining the characteristics of the Chinese written language, particularly how the reforms of written Chinese in China since the 1950s have affected instructional materials.…

  13. Elusive Images of the Other: A Postcolonial Analysis of South Korean World History Textbooks

    ERIC Educational Resources Information Center

    Kim, Young Chun; Moon, Seungho; Joo, Jaehong

    2013-01-01

    South Korean educators and curriculum scholars have attempted to challenge Eurocentric points of view in history education. Despite these efforts, the dominant textbooks and teaching practices in South Korea continue to project colonial epistemologies. This article argues that postcolonial inquiry into knowledge production can help expand the…

  14. Investigating the Geometry Curriculum in Palestinian Textbooks: Towards Multimodal Analysis of Arabic Mathematics Discourse

    ERIC Educational Resources Information Center

    Alshwaikh, Jehad

    2016-01-01

    The analytical scheme used in the project The Evolution of the Discourse of School Mathematics (EDSM) was developed to analyse the change over time in examination texts. An adapted version of the EDSM scheme has been deployed to analyse the nature of mathematics construed in Palestinian schools' textbooks and the mathematical activity expected of…

  15. A Content Analysis of Visual Aesthetics' Occurrences in Instructional Design Textbooks

    ERIC Educational Resources Information Center

    Brown, Lori A.

    2010-01-01

    Visual aesthetics in instructional design was defined for the purposes of this dissertation by the design actions of contrast, alignment, repetition, and proximity (CARP), insofar as they contribute to learning experience. Occurrences of visual aesthetics were identified and analyzed in three frequently required, graduate-level textbooks in…

  16. Content Analysis of Jordanian Elementary Textbooks during 1970-2013 as Case Study

    ERIC Educational Resources Information Center

    Abed, Eman Rasmi; Al-Absi, Mohammad Mustafa

    2015-01-01

    This study aims to determine types of mathematic disciplines (in term of topics) in Jordanian Elementary textbooks. This study evaluates mathematics text books especially in the period between 1970 and 2013 and identifies types and quantities of mathematics. To examine the relative quantity of mathematics, branches of mathematics, presentation…

  17. A Relationship Analysis: A Professor, 500 Students, and an Assigned Textbook

    ERIC Educational Resources Information Center

    Swanson, Ryan A.

    2014-01-01

    This study emphasizes an often overlooked avenue of inquiry in the increasingly escalating textbook debate: What is the relationship between the instructor, the students, and the assigned text? And correspondingly, how does one go about analyzing this crucial relationship? Over the past two years, Ryan Swanson gathered data from 549 students in…

  18. An Analysis of Eye Movement and Cognitive Load about the Editorial Design in Elementary Science Textbook

    ERIC Educational Resources Information Center

    Kim, Seong-un; Lim, Sung-man; Kim, Eun-ae; Yang, Il-ho

    2016-01-01

    This study is for the implication of editorial design in science textbooks which are designed for student-centered instruction, when the elements of the editorial design are different, we focus on how the students' eye movement and cognitive load change. For this, we produced a new book for 5th grade students in elementary school that is modified…

  19. A Historical Analysis of the Daniell Cell and Electrochemistry Teaching in French and Tunisian Textbooks

    ERIC Educational Resources Information Center

    Boulabiar, Ahlem; Bouraoui, Kamel; Chastrette, Maurice; Abderrabba, Manef

    2004-01-01

    The condition in which the Daniell Cell was historically constructed is examined and the evolution of its presentation in French and Tunisian chemistry textbooks is analyzed. Based on the studies, several innovations to facilitate the teaching of the cell, and more generally, the teaching of electrochemistry and of ionic conduction are proposed.

  20. History in Black and White: An Analysis of South African School History Textbooks.

    ERIC Educational Resources Information Center

    Dean, Elizabeth; And Others

    Designed to examine the way that different ethnic groups are presented in South African secondary school history textbooks, this study gives special attention to the extent and nature of ethnic stereotyping in texts and the endorsement of particular social and political attitudes relevant to contemporary South Africa. By using a sociological…

  1. A Content Analysis Exploring Lesbian, Gay, Bisexual, and Transgender Topics in Foundations of Education Textbooks

    ERIC Educational Resources Information Center

    Macgillivray, Ian K.; Jennings, Todd

    2008-01-01

    This research analyzed the most widely used foundations of education textbooks for lesbian, gay, bisexual, and transgender (LGBT) content. Because foundations of education coursework routinely introduces other diversity topics in education, the authors hold it is a good place to introduce LGBT topics. The ways in which LGBT topics are included in…

  2. Knowledge Transmission versus Social Transformation: A Critical Analysis of Purpose in Elementary Social Studies Methods Textbooks

    ERIC Educational Resources Information Center

    Butler, Brandon M.; Suh, Yonghee; Scott, Wendy

    2015-01-01

    In this article, the authors investigate the extent to which 9 elementary social studies methods textbooks present the purpose of teaching and learning social studies. Using Stanley's three perspectives of teaching social studies for knowledge transmission, method of intelligence, and social transformation; we analyze how these texts prepare…

  3. Selecting ELL Textbooks: A Content Analysis of Language-Teaching Models

    ERIC Educational Resources Information Center

    LaBelle, Jeffrey T.

    2011-01-01

    Many middle school teachers lack adequate criteria to critically select materials that represent a variety of L2 teaching models. This study analyzes the illustrated and written content of 33 ELL textbooks to determine the range of L2 teaching models represented. The researchers asked to what extent do middle school ELL texts depict frequency and…

  4. An Analysis of Data Activities and Instructional Supports in Middle School Science Textbooks

    ERIC Educational Resources Information Center

    Morris, Bradley J.; Masnick, Amy M.; Baker, Katie; Junglen, Angela

    2015-01-01

    A critical component of science and math education is reasoning with data. Science textbooks are instructional tools that provide opportunities for learning science content (e.g. facts about force and motion) and process skills (e.g. data recording) that support and augment reasoning with data. In addition, the construction and design of textbooks…

  5. A Comparative Analysis of Word Problems in Selected United States and Russian First Grade Textbooks

    ERIC Educational Resources Information Center

    Grishchenko, Svetlana

    2009-01-01

    The purpose of this study was to explore word problems as a subject matter in mathematics textbook curricula. The motivation for the study derived from the following evidence: (a) American students find some word problems are more difficult than others (Garcia, Jimenez, & Hess, 2006; Riley & Green, 1988; Stern, 2001), and (b) one of the possible…

  6. A Comparative Analysis of MEXT English Reading Textbooks and Japan's National Center Test

    ERIC Educational Resources Information Center

    Underwood, Paul

    2010-01-01

    Despite the influence of changing demographics in Japan, the National Center Test for University Entrance Exams continues to assert an ever increasing role in the process of university admissions. In preparation for this examination, the majority of senior high school students learn from textbooks approved by the Japanese Ministry of Education,…

  7. Application of Feminist Phase Theory in Educational Leadership Textbooks: A Developmental Analysis

    ERIC Educational Resources Information Center

    Reggio, Phyllis F.

    2013-01-01

    A key focus of school administration programs is to prepare educators for the challenges of urban leadership. When female school leaders aspire to leadership positions, the challenges that these issues present are often compounded by other factors such as gender stereotypes and limited opportunities. Textbooks, key tools of leadership study, that…

  8. Is Gender Stereotyping Still an Issue? An Analysis of a Hong Kong Primary English Textbook Series

    ERIC Educational Resources Information Center

    Yang, Chi Cheung Ruby

    2012-01-01

    This study aimed to investigate gender representation in an English textbook series used in Hong Kong schools. The corpus software AntConc was used to analyse the collocations of gendered terms "He/he," "She/she," "Man/man," "Woman/woman," "women," "Boy/boy," "Boys/boys,"…

  9. Construction and Validation of Textbook Analysis Grids for Ecology and Environmental Education

    ERIC Educational Resources Information Center

    Caravita, Silvia; Valente, Adriana; Luzi, Daniela; Pace, Paul; Valanides, Nicos; Khalil, Iman; Berthou, Guillemette; Kozan-Naumescu, Adrienne; Clement, Pierre

    2008-01-01

    Knowledge about ecology and environmental education (EE) constitutes a basic tool for promoting a sustainable future, and was a target area of the BIOHEAD-Citizen Project. School textbooks were considered as representative sources of evidence in terms of ecology and environmental education, and were used for comparison among the countries…

  10. English Language Teaching in Spain: Do Textbooks Comply with the Official Methodological Regulations? A Sample Analysis

    ERIC Educational Resources Information Center

    Criado, Raquel; Sanchez, Aquilino

    2009-01-01

    The goal of this paper is to verify up to what point ELT textbooks used in Spanish educational settings comply with the official regulations prescribed, which fully advocate the Communicative Language Teaching Method (CLT). For that purpose, seven representative coursebooks of different educational levels and modalities in Spain--secondary, upper…

  11. Analysis of Readability and Interest of Vocational Education Textbooks: Implications for Special Needs Learners.

    ERIC Educational Resources Information Center

    Jones, Karen H.

    1995-01-01

    Six readability formulas (Flesch, Kincaid-Flesch, Dale-Chall, Gunning-Fog, Raygor, and Fog) were used to evaluate 260 vocational textbooks. The formulas were effective in discriminating ease or difficulty. Human interest scores, but not writing style, were a strong factor in identifying accessible texts for special populations. (SK)

  12. The Analysis on the Length and Content Changes on Secondary Mathematics Textbooks in North Korea

    ERIC Educational Resources Information Center

    Cho, Hoyun

    2010-01-01

    North Korea is one of the most closed nations in the world. It is difficult to access information about their education system. North Korea's economic system was reorganized on July 1, 2002, as well as the education system. This change has impacted North Korea's mathematics education. With limited information on North Korean mathematics textbooks,…

  13. Experiences of Students with Visual Impairments in Adoption of Digital Talking Textbooks: An Interpretative Phenomenological Analysis

    ERIC Educational Resources Information Center

    Hussin, Ahamad

    2013-01-01

    Assistive technology devices have become essential tools for students with visual impairments. In 2009, the Malaysian Ministry of Education introduced Digital Talking Textbooks (DTTs) for selected subjects to facilitate learning. The purpose of this qualitative study was to explore, describe, and interpret the experiences of students with visual…

  14. Instrument for Textbook Assessment.

    ERIC Educational Resources Information Center

    Huetteman, Julie Doidge

    An instrument to assist in assessing textbooks was created to provide a concise format for comparison and evaluation. Textbook characteristics were selected to illustrate content and proportion of characteristics of textbooks. Nine textbook characteristics were selected for quantifying the content areas of textbooks: (1) number of pages in the…

  15. An analysis of the human genetics content of 13 general biology textbooks.

    PubMed

    Mertens, T R; Bowman, D

    1981-01-01

    Professionals in genetics, medicine, and biology education have in recent years called for placing greater emphasis on human genetics in the education of the nation's citizenry. Since a large collegiate audience for such education is found in the general biology classroom, we elected to analyze 13 current and widely used general biology textbooks to determine their human genetics content. The analyses revealed that from 6.68 to 15.51 percent of the books' pages were devoted to genetics, but only 0.75 to 3.44 percent of the pages dealt specifically with human genetics. The number of human genetic traits discussed in the books ranged from four to 24, with a mean of 15.77. Nine different chromosome aberrations were cited, with Down, Klinefelter, and Turner syndromes being mentioned most often. Twenty autosomal dominant, fifteen autosomal recessive, and seven X-linked traits were used as examples in the various textbooks. Most frequently cited single-gene conditions were the ABO blood groups, sickle cell anemia, phenylketonuria, hemophilia, and red/green colorblindness. The books varied considerably in the emphasis given to social applications of medical genetics. Based on the findings of this study, we offer several recommendations for the improvement of the human genetics content of general biology textbooks and courses. PMID:7328307

  16. What Makes a Top-Selling Textbook? Comparing Characteristics of AIS Textbooks

    ERIC Educational Resources Information Center

    Badua, Frank; Sharifi, Mohsen; Mendez Mediavilla, Francis

    2014-01-01

    The factors involved in the selection of accounting textbooks are under-investigated, and most of the research is survey-based, largely ignoring the information that could be analyzed by direct inspection of textbook content and its impact on textbook selection. In this study the authors fill this lacuna by deploying content analysis of the…

  17. A Quantitative Analysis of Undisclosed Conflicts of Interest in Pharmacology Textbooks

    PubMed Central

    Piper, Brian J.; Telku, Hassenet M.; Lambert, Drew A.

    2015-01-01

    Background Disclosure of potential conflicts of interest (CoI) is a standard practice for many biomedical journals but not for educational materials. The goal of this investigation was to determine whether the authors of pharmacology textbooks have undisclosed financial CoIs and to identify author characteristics associated with CoIs. Methods and Findings The presence of potential CoIs was evaluated by submitting author names (N = 403; 36.3% female) to a patent database (Google Scholar) as well as a database that reports on the compensation ($USD) received from 15 pharmaceutical companies (ProPublica’s Dollars for Docs). All publications (N = 410) of the ten highest compensated authors from 2009 to 2013 and indexed in Pubmed were also examined for disclosure of additional companies that the authors received research support, consulted, or served on speaker’s bureaus. A total of 134 patents had been awarded (Maximum = 18/author) to textbook authors. Relative to DiPiro’s Pharmacotherapy: A Pathophysiologic Approach, contributors to Goodman and Gilman’s Pharmacological Basis of Therapeutics and Katzung’s Basic and Clinical Pharmacology were more frequently patent holders (OR = 6.45, P < .0005). Female authors were less likely than males to have > 1 patent (OR = 0.15, P < .0005). A total of $2,411,080 USD (28.3% for speaking, 27.0% for consulting, and 23.9% for research), was received by 53 authors (Range = $299 to $310,000/author). Highly compensated authors were from multiple fields including oncology, psychiatry, neurology, and urology. The maximum number of additional companies, not currently indexed in the Dollars for Docs database, for which an author had potential CoIs was 73. Conclusions Financial CoIs are common among the authors of pharmacology and pharmacotherapy textbooks. Full transparency of potential CoIs, particularly patents, should become standard procedure for future editions of educational materials in pharmacology. PMID:26214515

  18. Views of Nature and the Human-Nature Relations: An Analysis of the Visual Syntax of Pictures about the Environment in Greek Primary School Textbooks--Diachronic Considerations

    ERIC Educational Resources Information Center

    Lemoni, Rea; Lefkaditou, Ageliki; Stamou, Anastasia G.; Schizas, Dimitrios; Stamou, George P.

    2013-01-01

    This paper explores the function of the visual syntax of images in Greek primary school textbooks. By using a model for the formal analysis of the visual material, which will allow us to disclose the mechanisms through which meanings are manifested, our aim is to investigate the discursive transition relating to the view of nature and the…

  19. Standardizing the Essential Knowledge, Skills, and Attitudes for Democratic Life: A Content Analysis of Virginia Standards of Learning and Social Studies Textbooks

    ERIC Educational Resources Information Center

    Scott, Wendy; Suh, Yonghee

    2015-01-01

    This content analysis explored how Civics and Government textbooks and the Virginia Standards of Learning for Civics and Government courses reflect citizenship outcomes, specifically deconstructing the unique needs of marginalized students. The coding frame was constructed by using themes and categories from previous literature, specifically…

  20. A content analysis of sixth-grade, seventh-grade, and eighth-grade science textbooks with regard to the nature of science

    NASA Astrophysics Data System (ADS)

    Phillips, Marianne C.

    Science teachers rely heavily on their textbooks; for many, it is the only curriculum they use (Weiss, 1993). Therefore, it is important these materials convey an accurate conception of the nature of science. Science for All Americans (AAAS, 1990) and the National Science Education Standards (NRC, 1996) call for teaching students about the nature of science. Including the nature of science throughout science textbooks will produce scientifically literate citizens (Driver and others, 1993) with an improved ability to make informed decisions (McComas, 1998). Teaching the nature of science supports the successful learning of science content and process (Driver and others, 1996), and bridges the gap between the two cultures of practicing scientists and school science (Sorsby, 2000). Do middle school science textbooks provide a balanced presentation of the nature of science throughout their text? To determine the answer, this investigation used a content analysis technique to analyze a random sample from the introduction chapter and the rest of the textbook chapters from twelve middle school science textbooks for the four aspects of the nature of science (Chiappetta, Fillman, & Sethna, 2004). Scoring procedures were used to determine interrater agreement using both Cohen's kappa (kappa) and Krippendorff's alpha (alpha). Kappa values were determined to be fair to excellent beyond chance among the three coders. The resulting values for Krippendorff's alpha ranged from acceptable (alpha > .80) to unacceptable (alpha < .67). The results from this content analysis indicated little change from previous studies in the balance for the themes of the nature of science. This investigation found the sixth-grade, seventh-grade, and eighth-grade science textbooks adopted by Texas to have unbalanced presentations for the four aspects of the nature of science. In addition, it found these middle school science textbooks are not balanced across programs. This imbalance is providing

  1. Analysis of Five High School Biology Textbooks Used in the United States for Inclusion of the Nature of Science

    ERIC Educational Resources Information Center

    Chiappetta, Eugene L.; Fillman, David A.

    2007-01-01

    Five high school biology textbooks were examined to determine the inclusion of four aspects of the nature of science: (a) science as a body of knowledge, (b) science as a way of investigating, (c) science as a way of thinking, and (d) science and its interactions with technology and society. The textbooks analyzed were "BSCS Biology--A Human…

  2. Considerations of Multicultural Science and Curriculum Reform: A Content Analysis of State-Adopted Biology Textbooks in Florida

    ERIC Educational Resources Information Center

    Delgato, Margaret H.

    2009-01-01

    The purpose of this investigation was to determine the extent to which multicultural science education, including indigenous knowledge representations, had been infused within the content of high school biology textbooks. The study evaluated the textbook as an instructional tool and framework for multicultural science education instruction by…

  3. Old Wine in New Bottles: An Analysis of Changes in Social Studies Textbooks from Old to New Edition.

    ERIC Educational Resources Information Center

    Woodward, Arthur; Nagel, Kathleen Carter

    Faced with a market that puts a premium on newness, artwork, and copyright date, the textbook industry seems to have been forced into a hectic textbook revision cycle in which improvement in instructional quality takes a poor second place to more superficial changes. While educators think they are getting newer, different, and, therefore better…

  4. An Analysis of the Treatment of Corporate Influence on Government by United States History and American Government High School Textbooks

    ERIC Educational Resources Information Center

    Neumann, Richard

    2014-01-01

    This article reports on an investigation to explore the possibility that ideology might be expressed in the treatment of corporate influence on federal government by social studies textbooks. Two textbooks were examined in the study--United States history and American government. Corporate influence involves activities that affect election and…

  5. Textbooks Content Analysis of Social Studies and Natural Sciences of Secondary School Based on Emotional Intelligence Components

    ERIC Educational Resources Information Center

    Babaei, Bahare; Abdi, Ali

    2014-01-01

    The aim of this study is to analyze the content of social studies and natural sciences textbooks of the secondary school on the basis of the emotional intelligence components. In order to determine and inspect the emotional intelligence components all of the textbooks content (including texts, exercises, and illustrations) was examined based on…

  6. Analysis of Physical Science Textbooks for Conceptual Frameworks on Acids, Bases and Neutralization: Implications for Students' Conceptual Understanding.

    ERIC Educational Resources Information Center

    Erduran, Sibel

    Eight physical science textbooks were analyzed for coverage on acids, bases, and neutralization. At the level of the text, clarity and coherence of statements were investigated. The conceptual framework for this topic was represented in a concept map which was used as a coding tool for tracing concepts and links present in textbooks. Cognitive…

  7. Developing Representational Ability in Mathematics for Students with Learning Disabilities: A Content Analysis of Grades 6 and 7 Textbooks

    ERIC Educational Resources Information Center

    van Garderen, Delinda; Scheuermann, Amy; Jackson, Christa

    2012-01-01

    This study was an examination of the extent to which sixth- and seventh-grade mathematics textbooks incorporated recommended instructional practices for students with learning disabilities to help develop representational ability. Results indicated that the textbooks (a) provided very little explicit instructional information about representations…

  8. Communication and Academic Vocabulary in Mathematics: A Content Analysis of Prompts Eliciting Written Responses in Two Elementary Mathematics Textbooks

    ERIC Educational Resources Information Center

    Joseph, Christine M.

    2012-01-01

    The purpose of this study was to investigate how writing in mathematics is treated in one 4th grade National Science Foundation (NSF)-funded mathematics textbook titled "Everyday Mathematics" and one publisher-generated textbook titled "enVision MATH." The developed framework provided categories to support each of the research…

  9. Proteomic analysis of ERK1/2-mediated human sickle red blood cell membrane protein phosphorylation

    PubMed Central

    2013-01-01

    Background In sickle cell disease (SCD), the mitogen-activated protein kinase (MAPK) ERK1/2 is constitutively active and can be inducible by agonist-stimulation only in sickle but not in normal human red blood cells (RBCs). ERK1/2 is involved in activation of ICAM-4-mediated sickle RBC adhesion to the endothelium. However, other effects of the ERK1/2 activation in sickle RBCs leading to the complex SCD pathophysiology, such as alteration of RBC hemorheology are unknown. Results To further characterize global ERK1/2-induced changes in membrane protein phosphorylation within human RBCs, a label-free quantitative phosphoproteomic analysis was applied to sickle and normal RBC membrane ghosts pre-treated with U0126, a specific inhibitor of MEK1/2, the upstream kinase of ERK1/2, in the presence or absence of recombinant active ERK2. Across eight unique treatment groups, 375 phosphopeptides from 155 phosphoproteins were quantified with an average technical coefficient of variation in peak intensity of 19.8%. Sickle RBC treatment with U0126 decreased thirty-six phosphopeptides from twenty-one phosphoproteins involved in regulation of not only RBC shape, flexibility, cell morphology maintenance and adhesion, but also glucose and glutamate transport, cAMP production, degradation of misfolded proteins and receptor ubiquitination. Glycophorin A was the most affected protein in sickle RBCs by this ERK1/2 pathway, which contained 12 unique phosphorylated peptides, suggesting that in addition to its effect on sickle RBC adhesion, increased glycophorin A phosphorylation via the ERK1/2 pathway may also affect glycophorin A interactions with band 3, which could result in decreases in both anion transport by band 3 and band 3 trafficking. The abundance of twelve of the thirty-six phosphopeptides were subsequently increased in normal RBCs co-incubated with recombinant ERK2 and therefore represent specific MEK1/2 phospho-inhibitory targets mediated via ERK2. Conclusions These findings

  10. Scholarship, Textbooks, and Mythology

    ERIC Educational Resources Information Center

    Noell, Laura K.

    2004-01-01

    A new textbook designed for first- or second-year courses in mythology as an introduction to literature shows that a community college faculty member who writes a textbook adds teaching experience to scholarship.

  11. Immigrant Success Stories in ESL Textbooks

    ERIC Educational Resources Information Center

    Gulliver, Trevor

    2010-01-01

    Immigrant success stories found in English as a second language (ESL) textbooks used in government-funded language instruction in Canada imagine Canada as a redeemer of immigrant newcomers. Through a critical discourse analysis of ESL textbooks used in Language Instruction for Newcomers to Canada classes in Ontario, I identify two primary…

  12. "Real" Books and Textbooks.

    ERIC Educational Resources Information Center

    Hansen, W. Lee

    1988-01-01

    Advocates the supplemental use of trade books with textbooks in introductory economics courses. States that students will learn how economists approach economic issues in the real world, building upon the organized textbook presentation of material. Acknowledging that textbooks are essential to instruction, Hansen lists several appropriate works…

  13. Textbooks: What's at Stake?

    ERIC Educational Resources Information Center

    Focus in Change, 1992

    1992-01-01

    Textbooks have an enormous influence on the curriculum of schools across the nation. Many issues are taken into consideration when selecting textbooks. Textbooks that present students with a multicultural curriculum are often at the center of debate among school administrators. This journal presents a series of articles based on interviews with…

  14. Intersections of Gender, Race, and Class in Introductory Textbooks

    ERIC Educational Resources Information Center

    Puentes, Jennifer; Gougherty, Matthew

    2013-01-01

    We update Ferree and Hall’s (1996) examination of the stratification systems of gender, race, and class in introductory textbooks. Using a sample of textbooks from 2003 through 2010, we explore 24 introductory sociology textbooks to determine the relationship between categories of gender, race, and class and levels of analysis. Previous research…

  15. Citizenship and Moral Education in Religious Education Textbooks

    ERIC Educational Resources Information Center

    Balciuniene, Inga; Mazeikiene, Natalija

    2005-01-01

    The purpose of this study was to examine interconnections between religiosity and citizenship education in Lithuanian religious education textbooks. Six textbooks (for 5-10 grades) used in Lithuanian basic schools were chosen for the content analysis. Dimensions of citizenship and morality found in religious education textbooks were classified…

  16. Textbooks 101: Textbook Collection at the University of Minnesota

    ERIC Educational Resources Information Center

    Crouse, Caroline

    2007-01-01

    This article analyzes a textbook collection project that spanned three semesters at the University of Minnesota. The project consisted of collecting extra copies from professors in several departments and placing the items on reserves for short term circulation; there was a small amount of money dedicated to the project. An analysis of circulation…

  17. Functional Analysis of Nuclear Localization Signals in VP1-2 Homologues from All Herpesvirus Subfamilies

    PubMed Central

    Hennig, T.; Abaitua, F.

    2014-01-01

    still have a limited understanding of the detailed mechanisms involved. Insight into these events is needed and could offer opportunities for therapeutic intervention. This work investigated the role of a specific determinant in the structural protein VP1-2 in herpesvirus entry. We examined this determinant in representative VP1-2s from all herpesvirus subfamilies, demonstrated NLS function, dissected key residues, and showed functional relevance in rescuing replication of the mutant blocked in capsid navigation to the pore. The results are important and strongly support our conclusions of the generality that these motifs are crucial for entry of all herpesviruses. They also facilitate future analysis on selective host interactions and possible routes to disrupt function. PMID:24574406

  18. The Rise and Fall of Science Education: A Content Analysis of Science in Elementary Reading Textbooks of the 19th Century

    ERIC Educational Resources Information Center

    Rillero, Peter

    2010-01-01

    In the 19th century the textbook dominated the curriculum and methods of instruction. The most important textbook was the textbook of reading known as the reader. In the early 1800s science was not established as a separate primary grade subject. The science students encountered in these reading textbooks may have been their only formal science…

  19. How Do Teachers and Textbook Writers Model Scientific Ideas for Students?

    ERIC Educational Resources Information Center

    Harrison, Allan G.

    2001-01-01

    Interviews 10 experienced science teachers about their understandings of the analogical models they use to explain science to their students. Investigates the notion that teaching pedagogy is influenced by the textbooks commonly used in class. Textbook analysis shows that chemistry textbooks used the most models and physics textbooks the least…

  20. The Great Depression: A Textbook Case of Problems with American History Textbooks.

    ERIC Educational Resources Information Center

    Miller, Steven L.; Rose, Stephen A.

    1983-01-01

    The 16 US history textbooks reviewed failed to incorporate economists' research on the causes of the Great Depression and consistently presented information that the economics profession has rejected. Strategies that social studies educators might adopt to improve the quality of economic analysis in textbooks is suggested. (Author/RM)

  1. A Discussion on an Expression Written about Dimensional Analysis in a Physics Textbook

    ERIC Educational Resources Information Center

    Yildiz, Ali

    2015-01-01

    The purpose of this study is to discuss a wrong statement written about dimensional analysis in a physics text book prepared for the students who are studying in science, engineering and teaching undergraduate programs at universities and who have to take compulsory physics courses, to analyse the use of the text book including the wrong…

  2. Financial Mathematical Tasks in a Middle School Mathematics Textbook Series: A Content Analysis

    ERIC Educational Resources Information Center

    Hamburg, Maryanna P.

    2009-01-01

    This content analysis examined the distribution of financial mathematical tasks (FMTs), mathematical tasks that contain financial terminology and require financially related solutions, across the National Standards in K-12 Personal Finance Education categories (JumpStart Coalition, 2007), the thinking skills as identified by "A Taxonomy for…

  3. Teacher Candidates Exposure to Formative Assessment in Educational Psychology Textbooks: A Content Analysis

    ERIC Educational Resources Information Center

    Wininger, Steven R.; Norman, Antony D.

    2005-01-01

    The purpose of this article is to define formative assessment, outline what is known about the prevalence of formative assessment implementation in the classroom, establish the importance of formative assessment with regards to student motivation and achievement, and present the results of a content analysis of current educational psychology…

  4. Using Conversation Analysis To Evaluate Pre-Sequences in Invitation, Offer, and Request Dialogues in ESL Textbooks.

    ERIC Educational Resources Information Center

    Bernsten, Suzanne Graham

    This paper uses conversation analytic research on a particular practice of organization in talk--pre-sequences--to evaluate English as a Second Language (ESL) textbook dialogues and make recommendations for their improvement. Pre-sequences, such as pre-invitations (e.g., What are you doing on Friday night?) and their responses are used to show…

  5. New Format, Same Old Story?: An Analysis of Traditional and Digital U.S. History Textbook Accounts of Slavery

    ERIC Educational Resources Information Center

    Lathan, Jamie L.

    2013-01-01

    While the distortions and omissions in traditional U. S. history textbook accounts of slavery have been well documented (Alexander, 2002; Brown & Brown, 2010; Banks, 1969; Council on Interracial Books for Children, 1977; Elson, 1964; Gordy & Pritchard, 1995; Kane, 1970; Kochlin, 1998; Washburn, 1997), no study has analyzed digital U. S.…

  6. The Limits of Master Narratives in History Textbooks: An Analysis of Representations of Martin Luther King, Jr.

    ERIC Educational Resources Information Center

    Alridge, Derrick P.

    2006-01-01

    In this study, I argue that American history textbooks present discrete, heroic, one-dimensional, and neatly packaged master narratives that deny students a complex, realistic, and rich understanding of people and events in American history. In making this argument, I examine the master narratives of Martin Luther King, Jr., in high school history…

  7. Communication Practices of Yesteryear: A Qualitative Analysis of Business and Professional Communication Textbooks in the Last Ten Years.

    ERIC Educational Resources Information Center

    Howard, Heather A.

    In 1993, E. Perrigo and D. Gaut surveyed 222 business communication professors and received the names of textbooks that there instructors used. From the list, 10 were chosen and examined to discover what the authors deemed important knowledge for business students. Areas identified were: (1) the role or importance of communication in business…

  8. A Comparative Analysis of Earth Science Curriculum Using Inquiry Methodology between Korean and the U.S. Textbooks

    ERIC Educational Resources Information Center

    Park, Mira; Park, Do-Yong; Lee, Robert E.

    2009-01-01

    The purpose of this study is to investigate in what ways the inquiry task of teaching and learning in earth science textbooks reflect the unique characteristics of earth science inquiry methodology, and how it provides students with opportunities to develop their scientific reasoning skills. This study analyzes a number of inquiry activities in…

  9. Sexually Transmitted Infections and the Use of Condoms in Biology Textbooks. A Comparative Analysis across Sixteen Countries

    ERIC Educational Resources Information Center

    Bernard, Sandie; Clement, Pierre; Carvalho, Graca; Gilda, Alves; Berger, Dominique; Thiaw, Seyni Mame; Sabah, Selmaoui; Salaheddine, Khzami; Skujiene, Grita; Abdelli, Sami; Mondher, Abrougui; Calado, Florbela; Bogner, Franz; Assaad, Yammine

    2008-01-01

    Our study focused on two topics, Sexually Transmitted Infections (STIs) and their control using condoms. For this, we analysed and compared 42 school textbooks from 16 countries on the general topic "Human Reproduction and Sex Education" using a specific grid designed by the BIOHEAD-Citizen project. Acquired Immune Deficiency Syndrome (AIDS) was a…

  10. Novel approaches to analysis of 3-chloropropane-1,2-diol esters in vegetable oils.

    PubMed

    Moravcova, Eliska; Vaclavik, Lukas; Lacina, Ondrej; Hrbek, Vojtech; Riddellova, Katerina; Hajslova, Jana

    2012-03-01

    A sensitive and accurate method utilizing ultrahigh performance liquid chromatography (U-HPLC) coupled to high resolution mass spectrometry based on orbitrap technology (orbitrapMS) for the analysis of nine 3-chloropropane-1,2-diol (3-MCPD) diesters in vegetable oils was developed. To remove the interfering triacylglycerols that induce strong matrix effects, a clean-up step on silica gel column was used. The quantitative analysis was performed with the use of deuterium-labeled internal standards. The lowest calibration levels estimated for the respective analytes ranged from 2 to 5 μg kg(-1). Good recovery values (89-120%) and repeatability (RSD 5-9%) was obtained at spiking levels of 2 and 10 mg kg(-1). As an alternative, a novel ambient desorption ionization technique, direct analysis in real time (DART), hyphenated with orbitrapMS, was employed for no separation, high-throughput, semi-quantitative screening of 3-MCPD diesters in samples obtained by chromatographic fractionation. Additionally, the levels of 3-MCPD diesters measured in reallife vegetable oil samples (palm oil, sunflower oil, rapeseed oil) using both methods are reported. Relatively good agreement of the data generated by U-HPLC-orbitrapMS and DART-orbitrapMS were observed. With regard to a low ionization yield achieved for 3-MCPD monoesters, the methods presented in this paper were not yet applicable for the analysis of these contaminants at the naturally occurring levels. PMID:22287050

  11. The Truly Free Textbook

    ERIC Educational Resources Information Center

    Beezer, Rob

    2009-01-01

    In this article, the author shares his experience when he converted his linear algebra course notes into an open-source textbook. This textbook began, in large measure, as a demonstration project to answer the following questions: (1) Could an individual, simply as a content expert, use computers and networks for the creation and distribution of a…

  12. Management Textbooks as Propaganda.

    ERIC Educational Resources Information Center

    Cameron, Kim S.; Ireland, R. Duane; Lussier, Robert N.; New, J. Randolph; Robbins, Stephen P.

    2003-01-01

    Four management textbook authors react to the metaphor of textbooks as propaganda. All write to support managerial ideology and are aware of the market, but believe their role in shaping the field is limited. Includes two responses: "Propaganda, Trusteeship, and Artifact" (Daniel R. Gilbert) and "The Hegemonic Discourse of Management Texts" (Ali…

  13. Your Economics Textbook.

    ERIC Educational Resources Information Center

    Lee, Helen C.

    How economics can be taught through a student-developed textbook is described. Having secondary students construct their own economics textbook can be an exciting process. During the initial six- or nine-week segment of a course, materials can be collected and organized to make a book that the class can study for the rest of the semester or year.…

  14. Encyclopedia as Textbook

    ERIC Educational Resources Information Center

    Pallo, Gabor

    2006-01-01

    Textbooks and encyclopedias represent different genres of scientific literature. Textbooks help the students to prepare for their examinations in various subjects taught at schools, such as logic, metaphysic, chemistry. In the 17th Century some Calvinist professors, mostly in Germany, thought that a universal wholeness should be taught for the…

  15. The Textbook as Curriculum.

    ERIC Educational Resources Information Center

    Ariew, Robert

    The lack of cultural content, low interest level, and crowdedness of second language textbooks arise because every textbook represents a compromise: between the publisher's need to sell a book and the author's need to address specific pedagogical issues, and between the need to explain grammatical points fully and the need to explain them briefly.…

  16. Writing Your First Textbook

    ERIC Educational Resources Information Center

    Anderson, Nancy A.

    2007-01-01

    Writing and publishing a textbook for the first time is an arduous process. Potential authors are provided information on things they should, and should not, do to insure a more successful experience in writing their first textbook. Authors are provided information on decisions to be made and actions to be taken at the various stages of…

  17. Transcriptome analysis of the aquaporin AtPIP1;2 deficient line in Arabidopsis thaliana

    PubMed Central

    Boudichevskaia, Anastassia; Heckwolf, Marlies; Althaus, Lea; Kaldenhoff, Ralf

    2015-01-01

    Atmospheric CO2 impacts all aspects of plant development. It has changed in the past and is predicted to change further on. Studies on the response of crop plants to low and elevated CO2 concerning growth, productivity and physiological processes are intense. In contrast, the molecular mechanisms of cellular CO2 exchange are still under discussion. At the same time it becomes more and more accepted that carbon dioxide is transported across cellular biomembranes by CO2 conducting aquaporins. Our recent study (Boudichevskaia et al., 2015) demonstrates that the lack of a single gene product – aquaporin AtPIP1;2 – resulted in massive transcriptional reprogramming in Arabidopsis as a consequence of reduced tissue CO2 diffusion rates. Therefore, the transcriptome data of the aquaporin AtPIP1;2 deficient line can be used in the comparative expression analyses for better understanding the role of aquaporins with regard to CO2 and water transport in plants. Here we describe a gene expression dataset generated for three biological replicates per genotype on Affymetrix platform. We provide detailed methods and analysis on microarray data which has been deposited in Gene Expression Omnibus (GEO): GSE62167. Additionally, we provide the R code for data preprocessing and quality control. PMID:26484207

  18. Semantic Network Analysis on Terms related Mantle in Earth Science 2 Textbooks of Korea

    NASA Astrophysics Data System (ADS)

    Chung, Duk Ho; reum Cho, Ah; Park, Seon Ok

    2016-04-01

    The purpose of this study is to demonstrate if freshmen's cognitive frame about 'Crisis of the Earth' upon taking the Earth science 1 in high school reflects the school curriculum. The data was collected from 67 freshmen who'd graduated high school in formal education. They expressed 'Crisis of the Earth' as a painting with explanation and then we extracted units of meaning from paintings, respectively. We analyzed the words and frame using the Semantic Network Analysis. The result is as follows; First, as every participant forms the cognitive frame for the crisis of the Earth, it is shown that they connect each part which that composes the global environment and realize it as the changing relation with interaction. Secondly, forming a cognitive frame regarding crisis of the Earth, both groups connect it with human endeavor. Especially, it seems that the group of participants who finished Earth Science I fully reflects the course of the formal education. It is necessary to make the students recognize it from a universal point of view, not only from the Earth. Also, much effort is required in order to enlighten about the appropriateness regarding problem-solving of the Earth and expand their mind as time changes. Keywords : Earth ScienceⅠ, cognitive frame, crisis of the earth, semantic network analysis

  19. Sociology of health textbooks and narratives: historical significance.

    PubMed

    Nunes, Everardo Duarte

    2016-03-01

    This article has as its starting point two central ideas: textbooks as a means of production and dissemination of knowledge and narrative as an approach. After a brief review of studies on health/medical sociology textbooks, I analyze a few of these textbooks from the 1900-2012 period, produced in the United States and England. I have selected eleven textbooks which I thought were representative. In addition to a content analysis, the textbooks are located within the process of constitution of the health/medical sociology with brief references to the biographies of the authors. The textbooks analyzed were classified according to the main narrative features: doctor-centered; interdisciplinary; pedagogical; analytical; almost autobiographical; critical; and synthetic-reflective. In the final remarks, some points about the textbooks, limits and possibilities are presented. PMID:26960094

  20. Developing electronic textbooks

    SciTech Connect

    Zadoks, R.I.; Ratner, J.A.

    1996-03-01

    This paper discusses a new approach to the development of engineering education materials. The ``Electronic Textbook`` represents the logical progression of the printed textbook in the Electronic Age. The concept behind this approach is simple; to place all of the information contained in a textbook in electronic form. Currently, paper texts exist on the market with electronic supplements, however, this Electronic Textbook would include supplements fully integrated in the whole text. The computer hardware and software needed to make this advance possible have existed for nearly ten years, and they have been readily available to engineering educators and students for over three years. Computer based ``tools`` in engineering textbooks as are prevalent today range from computer styled algorithms and code snippets, to fully developed software applications with graphical user interfaces on floppy disks attached to the back covers of books. The next logical step in publishing is to dispense with the paper book entirely, by distributing textbooks via electronic media such as CD-ROM. Electronic Textbooks use the full range of multi-media technologies in the learning and teaching process including video clips, computer animations and fully functional numerical engines as integral parts of the textbook material. This is very appealing since interactive media provide teaching tools that appeal to divergent learning styles. The advantages of Electronic Textbooks lead to several challenges. Special attention must be paid to the development of user interfaces; navigation is of particular importance when non- linear exploration is encouraged. These issues are being addressed at the Sandia National Laboratories by an electronic documentation development team. This team includes experts in engineering, in human factors, and in computer hardware and software development. Guidelines for the development of electronic textbooks based on the experiences of this team are provided.

  1. [Recognizing and defining dying. Analysis of end-of-life coverage in German nursing textbooks].

    PubMed

    Pleschberger, Sabine; Hornek, Alexandra

    2011-08-01

    Text books play an important role in basic education in nursing. This study aimed at capturing the extent and content of end-of-life issues in nursing text books in German language. For that reason, a quantitative and a qualitative analysis of relevant content in a comprehensive sample of nursing text books available (n = 65) were conducted. Whereas 29.2 % of the books do not cover the issue at all, 44.5 % dedicate a separate chapter to the issue of dying, which accounts for 1.34 % of all pages on average. Of all specialties, both surgery and internal medicine feature the lowest, and paediatrics and oncology the highest share of coverage. 41.53 % of all text books studied contain a definition of the term dying which is based on a great variety of approaches. 23 books list criteria that define the recognition of dying, 21 of which draw attention to symptoms of impending death. 84 % of the books refer to the work of Elisabeth Kübler-Ross. Overall, the amount of coverage of the issue of dying in nursing text books can be considered marginal by international comparison. What is problematic is the conceptual reduction to physiological signs of impending death and the lack of references to existing theoretical work. Integration of knowledge from the area of palliative care in all specialties is strongly needed. Additionally, there is a need for a stronger conceptual debate in order to avoid problems in communication about death and dying in nursing education and practice. PMID:21789766

  2. Amateurs Crossing Prairies of Oblivion: Textbook Writers and Textbook Research.

    ERIC Educational Resources Information Center

    Johnsen, Egil Borre

    1994-01-01

    Contends that an author's contribution to a textbook may be more or less significant, depending on how much importance is attached to curricula, publishers, consultants, and the school environment. Discusses the changing role of textbook authors in Norway and other nations. Reviews research on textbook development and textbook writing. (CFR)

  3. Reconsidering the Textbook

    NASA Astrophysics Data System (ADS)

    Bierman, Paul; Massey, Christine; Manduca, Catherine

    2006-08-01

    Is the printed science textbook a massive,slow moving dinosaur headed for extinction,doomed by its inability to evolve in the faceof a fast moving technology bolide? In 10years, will students still carry printed tomes intheir backpacks, or will electronic mediahave replaced the textbook, leaving it aboutas useful as yesterday's typewriter or addingmachine? With the explosion of digital technologyin students' lives and the increasingawareness among geosciences faculty thatestablished teaching techniques are becomingless effective for this generation of students, thetime is ripe to reconsider the textbook.

  4. An Analysis of the Learning Activities Covered in the 5th Grade Science Textbooks Based on 2005 and 2013 Turkish Science Curricula

    ERIC Educational Resources Information Center

    Aydogdu, Cemil; Idin, Sahin

    2015-01-01

    The aim of this study is to analyze the learning activities covered in 5th grade elementary science textbooks which depend on 2005 and 2013 elementary science curricula. Two elementary science textbooks [which] depend on 2005 science curriculum and two elementary science textbooks [which] depend on 2013 science curriculum were researched. The…

  5. An Analysis of the Learning Activities Covered in the 5th Grade Science Textbooks Based on 2005 and 2013 Turkish Science Curricula

    ERIC Educational Resources Information Center

    Aydogdu, Cemil; Idin, Sahin

    2015-01-01

    The aim of this study is to analyze the learning activities covered in 5th grade elementary science textbooks which depend on 2005 and 2013 elementary science curricula. Two elementary science textbooks depends on 2005 science curriculum and two elementary science textbooks depend on 2013 science curriculum were researched. The study is a…

  6. World History Textbooks: A Review

    ERIC Educational Resources Information Center

    Sewall, Gilbert T.

    2004-01-01

    This world history review examines standard textbooks used between the sixth and twelfth grades in schools across the nation. These established textbooks dominate the field and set the pitch for new and forthcoming volumes. The 2002 Texas history textbook adoption and the California list have influenced what textbooks will dominate the national…

  7. Representation of scientific methodology in secondary science textbooks

    NASA Astrophysics Data System (ADS)

    Binns, Ian C.

    The purpose of this investigation was to assess the representation of scientific methodology in secondary science textbooks. More specifically, this study looked at how textbooks introduced scientific methodology and to what degree the examples from the rest of the textbook, the investigations, and the images were consistent with the text's description of scientific methodology, if at all. The sample included eight secondary science textbooks from two publishers, McGraw-Hill/Glencoe and Harcourt/Holt, Rinehart & Winston. Data consisted of all student text and teacher text that referred to scientific methodology. Second, all investigations in the textbooks were analyzed. Finally, any images that depicted scientists working were also collected and analyzed. The text analysis and activity analysis used the ethnographic content analysis approach developed by Altheide (1996). The rubrics used for the text analysis and activity analysis were initially guided by the Benchmarks (AAAS, 1993), the NSES (NRC, 1996), and the nature of science literature. Preliminary analyses helped to refine each of the rubrics and grounded them in the data. Image analysis used stereotypes identified in the DAST literature. Findings indicated that all eight textbooks presented mixed views of scientific methodology in their initial descriptions. Five textbooks placed more emphasis on the traditional view and three placed more emphasis on the broad view. Results also revealed that the initial descriptions, examples, investigations, and images all emphasized the broad view for Glencoe Biology and the traditional view for Chemistry: Matter and Change. The initial descriptions, examples, investigations, and images in the other six textbooks were not consistent. Overall, the textbook with the most appropriate depiction of scientific methodology was Glencoe Biology and the textbook with the least appropriate depiction of scientific methodology was Physics: Principles and Problems. These findings

  8. Detection of somatic BRCA1/2 mutations in ovarian cancer - next-generation sequencing analysis of 100 cases.

    PubMed

    Koczkowska, Magdalena; Zuk, Monika; Gorczynski, Adam; Ratajska, Magdalena; Lewandowska, Marzena; Biernat, Wojciech; Limon, Janusz; Wasag, Bartosz

    2016-07-01

    The overall prevalence of germline BRCA1/2 mutations is estimated between 11% and 15% of all ovarian cancers. Individuals with germline BRCA1/2 alterations treated with the PARP1 inhibitors (iPARP1) tend to respond better than patients with wild-type BRCA1/2. Additionally, also somatic BRCA1/2 alterations induce the sensitivity to iPARP1. Therefore, the detection of both germline and somatic BRCA1/2 mutations is required for effective iPARP1 treatment. The aim of this study was to identify the frequency and spectrum of germline and somatic BRCA1/2 alterations in a group of Polish patients with ovarian serous carcinoma. In total, 100 formalin-fixed paraffin-embedded (FFPE) ovarian serous carcinoma tissues were enrolled to the study. Mutational analysis of BRCA1/2 genes was performed by using next-generation sequencing. The presence of pathogenic variants was confirmed by Sanger sequencing. In addition, to confirm the germline or somatic status of the mutation, the nonneoplastic tissue was analyzed by bidirectional Sanger sequencing. In total, 27 (28% of patient samples) mutations (20 in BRCA1 and 7 in BRCA2) were identified. For 22 of 27 patients, nonneoplastic cells were available and sequencing revealed the somatic character of two BRCA1 (2/16; 12.5%) and two BRCA2 (2/6; 33%) mutations. Notably, we identified six novel frameshift or nonsense BRCA1/2 mutations. The heterogeneity of the detected mutations confirms the necessity of simultaneous analysis of BRCA1/2 genes in all patients diagnosed with serous ovarian carcinoma. Moreover, the use of tumor tissue for mutational analysis allowed the detection of both somatic and germline BRCA1/2 mutations. PMID:27167707

  9. Encyclopedia as Textbook

    NASA Astrophysics Data System (ADS)

    Palló, Gábor

    2006-11-01

    Textbooks and encyclopedias represent different genres of scientific literature. Textbooks help the students to prepare for their examinations in various subjects taught at schools, such as logic, metaphysic, chemistry. In the 17th Century some Calvinist professors, mostly in Germany, thought that a universal wholeness should be taught for the students. Encyclopedias adequately expressed this vision. Some of these professors, including Johannes Alsted, were invited to Hungary, Transylvania, to introduce the encyclopedic spirit to the local schools. This act fostered the first textbook in Hungarian language written by János Apáczai Csere. This book was an encyclopedia born mostly in the Netherlands where the author studied. The Cartesian philosophy combined with a Ramist system served as the basis of the book. Its history shows how the local conditions influence the content of knowledge incorporated into a textbook.

  10. Functional analysis of Kv1.2 and paddle chimera Kv channels in planar lipid bilayers

    PubMed Central

    Tao, Xiao; MacKinnon, Roderick

    2010-01-01

    Summary Voltage-dependent K+ channels play key roles in shaping electrical signaling in both excitable as well as non-excitable cells. These channels open and close in response to the voltage changes across the cell membrane. Many studies have been carried out in order to understand the voltage sensing mechanism. Our laboratory recently determined the atomic structures of a mammalian voltage-dependent K+ channel Kv1.2 and a mutant of Kv1.2 named the ‘paddle-chimera’ channel, in which the voltage sensor paddle was transferred from Kv2.1 to Kv1.2. These two structures provide atomic descriptions of voltage-dependent channels with unprecedented clarity. Until now the functional integrity of these two channels biosynthesized in yeast cells have not been assessed. Here we report the electrophysiological and pharmacological properties of Kv1.2 and the paddle chimera channels in planar lipid bilayers. We demonstrate that Pichia yeast produce ‘normally functioning’ mammalian voltage-dependent K+ channels with qualitatively similar features to the Shaker K+ channel in the absence of the N-terminal inactivation gate, and that the paddle chimera mutant channel functions as well as Kv1.2. We find, however, that in several respects the Kv1.2 channel exhibits functional properties that are distinct from Kv1.2 channels reported in the literature. PMID:18638484

  11. The Role of Situational Authenticity in English Language Textbooks

    ERIC Educational Resources Information Center

    Chan, Jim Yee Him

    2013-01-01

    This study assesses the extent to which situational authenticity has been implemented in three commercial ELT textbook series in Hong Kong, which are designed to reflect the local sociolinguistic setting. The analysis involved the quantification and categorization of both written and spoken texts in the textbooks. The results of this analysis were…

  12. The Changing Face of War in Textbooks: Depictions of World War II and Vietnam, 1970-2009

    ERIC Educational Resources Information Center

    Lachmann, Richard; Mitchell, Lacy

    2014-01-01

    How have U.S. high school textbook depictions of World War II and Vietnam changed since the 1970s? We examined 102 textbooks published from 1970 to 2009 to see how they treated U.S. involvement in World War II and Vietnam. Our content analysis of high school history textbooks finds that U.S. textbooks increasingly focus on the personal experiences…

  13. Punctuation Instruction in Elementary School Textbooks.

    ERIC Educational Resources Information Center

    Gentry, Larry A.

    A computer-assisted analysis was conducted of the punctuation skills taught in nine series of language arts textbooks. Each text was subjected to a detailed, page-by-page analysis of instructional content, resulting in a content-specific analysis of punctuation instruction at each grade level. The results indicated significant differences among…

  14. An open-source textbook for teaching climate-related risk analysis using the R computing environment

    NASA Astrophysics Data System (ADS)

    Applegate, P. J.; Keller, K.

    2015-12-01

    Greenhouse gas emissions lead to increased surface air temperatures and sea level rise. In turn, sea level rise increases the risks of flooding for people living near the world's coastlines. Our own research on assessing sea level rise-related risks emphasizes both Earth science and statistics. At the same time, the free, open-source computing environment R is growing in popularity among statisticians and scientists due to its flexibility and graphics capabilities, as well as its large library of existing functions. We have developed a set of laboratory exercises that introduce students to the Earth science and statistical concepts needed for assessing the risks presented by climate change, particularly sea-level rise. These exercises will be published as a free, open-source textbook on the Web. Each exercise begins with a description of the Earth science and/or statistical concepts that the exercise teaches, with references to key journal articles where appropriate. Next, students are asked to examine in detail a piece of existing R code, and the exercise text provides a clear explanation of how the code works. Finally, students are asked to modify the existing code to produce a well-defined outcome. We discuss our experiences in developing the exercises over two separate semesters at Penn State, plus using R Markdown to interweave explanatory text with sample code and figures in the textbook.

  15. Heat and Kinetic Theory in 19th-Century Physics Textbooks: The Case of Spain.

    ERIC Educational Resources Information Center

    Vaquero, Jose M.; Santos, Andres

    2001-01-01

    Presents an analysis of the contents of 19th century Spanish textbooks. These textbooks are centered on imponderable fluids, the concept of energy, the mechanical theory of heat, and the kinetic theory of gases. (SAH)

  16. Centrifugal Distortion Analysis of the Millimeter-Wave Spectrum of 1,1,1,2-Tetrafluoroethane

    NASA Astrophysics Data System (ADS)

    Bizzocchi, L.; Degli Esposti, C.; Dore, L.

    1998-04-01

    The supplementary material consists of an ascii file, in which all the analysed transition frequencies of 1,1,1,2-Tetrafluoroethane (HFC 134a) are listed. Two Tables are included. Table I contains the ground state transition frequencies, and Table II contains the torsional state lines. The first page is explanatory.

  17. Some Perceptions of English Geography Textbook Authors on Writing Textbooks

    ERIC Educational Resources Information Center

    Lee, Jongwon; Catling, Simon

    2016-01-01

    There has been much research into the nature and uses of school geography textbooks as teaching resources, yet the perceptions of their authors have been neglected. This study investigated the perspectives of a sample of authors of English primary and secondary school geography textbooks on their experiences as textbook authors. It enquired into…

  18. What's Wrong with Economics Textbooks?

    ERIC Educational Resources Information Center

    Culyer, A. J.

    1985-01-01

    Many things are wrong with college level economics textbooks. For example, they are too ahistorical, too particularist, or unsystematically eclectic. The requirements of a good college economics textbook are examined. (RM)

  19. Functional and Structural Analysis of a β-Glucosidase Involved in β-1,2-Glucan Metabolism in Listeria innocua.

    PubMed

    Nakajima, Masahiro; Yoshida, Ryuta; Miyanaga, Akimasa; Abe, Koichi; Takahashi, Yuta; Sugimoto, Naohisa; Toyoizumi, Hiroyuki; Nakai, Hiroyuki; Kitaoka, Motomitsu; Taguchi, Hayao

    2016-01-01

    Despite the presence of β-1,2-glucan in nature, few β-1,2-glucan degrading enzymes have been reported to date. Recently, the Lin1839 protein from Listeria innocua was identified as a 1,2-β-oligoglucan phosphorylase. Since the adjacent lin1840 gene in the gene cluster encodes a putative glycoside hydrolase family 3 β-glucosidase, we hypothesized that Lin1840 is also involved in β-1,2-glucan dissimilation. Here we report the functional and structural analysis of Lin1840. A recombinant Lin1840 protein (Lin1840r) showed the highest hydrolytic activity toward sophorose (Glc-β-1,2-Glc) among β-1,2-glucooligosaccharides, suggesting that Lin1840 is a β-glucosidase involved in sophorose degradation. The enzyme also rapidly hydrolyzed laminaribiose (β-1,3), but not cellobiose (β-1,4) or gentiobiose (β-1,6) among β-linked gluco-disaccharides. We determined the crystal structures of Lin1840r in complexes with sophorose and laminaribiose as productive binding forms. In these structures, Arg572 forms many hydrogen bonds with sophorose and laminaribiose at subsite +1, which seems to be a key factor for substrate selectivity. The opposite side of subsite +1 from Arg572 is connected to a large empty space appearing to be subsite +2 for the binding of sophorotriose (Glc-β-1,2-Glc-β-1,2-Glc) in spite of the higher Km value for sophorotriose than that for sophorose. The conformations of sophorose and laminaribiose are almost the same on the Arg572 side but differ on the subsite +2 side that provides no interaction with a substrate. Therefore, Lin1840r is unable to distinguish between sophorose and laminaribiose as substrates. These results provide the first mechanistic insights into β-1,2-glucooligosaccharide recognition by β-glucosidase. PMID:26886583

  20. Functional and Structural Analysis of a β-Glucosidase Involved in β-1,2-Glucan Metabolism in Listeria innocua

    PubMed Central

    Miyanaga, Akimasa; Abe, Koichi; Takahashi, Yuta; Sugimoto, Naohisa; Toyoizumi, Hiroyuki; Nakai, Hiroyuki; Kitaoka, Motomitsu; Taguchi, Hayao

    2016-01-01

    Despite the presence of β-1,2-glucan in nature, few β-1,2-glucan degrading enzymes have been reported to date. Recently, the Lin1839 protein from Listeria innocua was identified as a 1,2-β-oligoglucan phosphorylase. Since the adjacent lin1840 gene in the gene cluster encodes a putative glycoside hydrolase family 3 β-glucosidase, we hypothesized that Lin1840 is also involved in β-1,2-glucan dissimilation. Here we report the functional and structural analysis of Lin1840. A recombinant Lin1840 protein (Lin1840r) showed the highest hydrolytic activity toward sophorose (Glc-β-1,2-Glc) among β-1,2-glucooligosaccharides, suggesting that Lin1840 is a β-glucosidase involved in sophorose degradation. The enzyme also rapidly hydrolyzed laminaribiose (β-1,3), but not cellobiose (β-1,4) or gentiobiose (β-1,6) among β-linked gluco-disaccharides. We determined the crystal structures of Lin1840r in complexes with sophorose and laminaribiose as productive binding forms. In these structures, Arg572 forms many hydrogen bonds with sophorose and laminaribiose at subsite +1, which seems to be a key factor for substrate selectivity. The opposite side of subsite +1 from Arg572 is connected to a large empty space appearing to be subsite +2 for the binding of sophorotriose (Glc-β-1,2-Glc-β-1,2-Glc) in spite of the higher Km value for sophorotriose than that for sophorose. The conformations of sophorose and laminaribiose are almost the same on the Arg572 side but differ on the subsite +2 side that provides no interaction with a substrate. Therefore, Lin1840r is unable to distinguish between sophorose and laminaribiose as substrates. These results provide the first mechanistic insights into β-1,2-glucooligosaccharide recognition by β-glucosidase. PMID:26886583

  1. A List of Most Frequently Recommended Medical Textbooks *

    PubMed Central

    Inke, Gabor

    1971-01-01

    This paper is an analysis of a questionnaire which was sent to faculty members of eighty medical schools of the United States and Canada requesting their preferences regarding medical textbooks. It includes a list of recommended textbooks arranged by subject. PMID:5128702

  2. Representation of Scientific Methodology in Secondary Science Textbooks

    ERIC Educational Resources Information Center

    Binns, Ian C.; Bell, Randy L.

    2015-01-01

    This study explored how eight widely used secondary science textbooks described scientific methodology and to what degree the textbooks' examples and investigations were consistent with this description. Data consisted of all text from student and teacher editions that referred to scientific methodology and all investigations. Analysis used an…

  3. Deconstruction of Cultural Dominance in Korean EFL Textbooks

    ERIC Educational Resources Information Center

    Song, Heejin

    2013-01-01

    This article examines patterns of cultural representations embedded in Korean EFL textbooks, using a content analysis to investigate how different cultures are reflected in textbooks and whether or not cultural biases are present. In the revised Korean national English curriculum that has been implemented since 2009, English is viewed as a…

  4. Content and Coverage of "Culture" in Introductory Textbooks

    ERIC Educational Resources Information Center

    Lake-Corral, Lorien T.

    2012-01-01

    This dissertation reports the results of a content analysis of Introductory Sociology textbooks in order to assess their coverage of, and approach to, the teaching of "culture" in the hopes of ultimately creating a unified approach for the introduction of students to the sociology of culture. Looking at introductory sociology textbooks,…

  5. Globalisation and Citizenship Education: Diversity in South Korean Civics Textbooks

    ERIC Educational Resources Information Center

    Moon, Rennie

    2013-01-01

    This study examines how textbooks in the Republic of Korea incorporate liberal, Western notions of diversity and multiculturalism. Through a systematic analysis of 60 civics textbooks over time, this study shows that ideas of multiculturalism and diversity have dramatically increased in the South Korean intended curriculum. While in the past,…

  6. Stereotypes, Distortions and Omissions in U.S. History Textbooks.

    ERIC Educational Resources Information Center

    Council on Interracial Books for Children, Inc., New York, NY.

    This book, published by the Council on Interracial Books for Children, presents a content analysis instrument for assessing the portrayal of women and third world peoples in U.S. History textbooks. Thirteen textbooks published since 1970 and one which was published in 1967 are examined for their treatment of six groups: women, African Americans,…

  7. College Textbook Reading Assignments and Class Time Activity

    ERIC Educational Resources Information Center

    Aagaard, Lola; Conner, Timothy W., II.; Skidmore, Ronald L.

    2014-01-01

    A convenient cluster sample of 105 undergraduate students at a regional university in the midsouth completed a survey regarding their use of college textbooks, what strategies might increase the likelihood of their reading textbook assignments, and their preference for how class time was used. Descriptive analysis was conducted on the results and…

  8. Epistemological Messages Conveyed by High School and College Mathematics Textbooks.

    ERIC Educational Resources Information Center

    Raman, Manya

    Mathematics textbooks embody a particular set of assumptions about mathematics or the mathematics intended for students at a particular level. An epistemological analysis of textbooks can provide some context for understanding, for example the difficulties many students encounter when moving from high school to collegiate mathematics. In this…

  9. Representing African American Women in U.S. History Textbooks

    ERIC Educational Resources Information Center

    Schocker, Jessica B.; Woyshner, Christine

    2013-01-01

    This article addresses the dearth of African American women in high school U.S. history textbooks. The authors conducted a content analysis of the images in an African American history textbook and found that black women are underrepresented. Women are found in less than 15 percent of the images in the African American history text, while they…

  10. Evaluation of Two ESP Textbooks

    ERIC Educational Resources Information Center

    Al Fraidan, Abdullah

    2012-01-01

    This paper evaluated two ESP textbooks using the evaluation of McDonough and Shaw (2003) based on external and internal evaluation. The first textbook is "Business Objectives" (1996) by Vicki Hollett, and the second textbook is "Business Studies, Second Edition" (2002) by Alain Anderton. To avoid repetition, I will use BO and…

  11. Multi-Isotope Analysis as a Natural Reaction Probe of Biodegradation Mechanisms of 1,2- Dichloroethane

    NASA Astrophysics Data System (ADS)

    Hirschorn, S. K.; Dinglasan-Panlilio, M.; Edwards, E. A.; Lacrampe-Couloume, G.; Sherwood Lollar, B.

    2006-12-01

    1,2-Dichloroethane (1,2-DCA), a chlorinated aliphatic hydrocarbon, is an EPA priority pollutant and a widespread groundwater contaminant. Stable isotope fractionation during biodegradation of 1,2-DCA occurs due to differences in the reaction rates of heavy versus light atoms present at a reacting bond in the 1,2-DCA molecule. In general, light isotopic bonds react more quickly, producing a relative enrichment in the heavy isotope in the remaining contaminant pool. Compound specific isotope analysis has the potential to demonstrate the occurrence and extent of biodegradation at chlorinated solvent contaminated groundwater sites. In this study, stable carbon isotope fractionation was used as a novel reaction probe to provide information about the mechanism of 1,2-DCA biodegradation. Isotopic fractionation was measured during 1,2-DCA degradation by a microbial culture capable of degrading 1,2-DCA under O2-reducing and NO3-reducing conditions. The microbial culture produced isotopic enrichment values that are not only large and reproducible, but are the same whether O2 or NO3 was used as an electron acceptor. The mean isotopic enrichment value of -25.8 permil measured for the microbial culture during 1,2-DCA degradation under both O2 and NO3- reducing conditions can be converted into a kinetic isotope effect (KIE) value to relate the observed isotopic fractionation to the mechanism of degradation. This KIE value (1.05) is consistent with degradation via a hydrolysis (SN2) reaction under both electron-accepting conditions. Isotope analysis was able to provide a first line of evidence for the reaction mechanism of 1,2-DCA biodegradation by the microbial culture. Using a multi-isotope approach incorporating both carbon and hydrogen isotopic data, compound specific isotope analysis also has the potential to determine degradation mechanisms for 1,2-DCA under aerobic conditions where 1,2-DCA is known to be degraded by two distinct enzymatic pathways. Biodegradation of 1,2

  12. How Do Elementary Textbooks Address Fractions? A Review of Mathematics Textbooks in the USA, Japan, and Kuwait

    ERIC Educational Resources Information Center

    Alajmi, Amal Hussain

    2012-01-01

    Textbooks play an important part in the design of instruction. This study analyzed the presentation of fractions in textbooks designed for the elementary grades in Kuwait, Japan, and the USA. The analysis focused on the physical characteristics of the books, the structure of the lessons, and the nature of the mathematical problems presented.…

  13. A Textbook Selection Process.

    ERIC Educational Resources Information Center

    Prosser, Daniel R.; Bondavalli, Bonnie J.

    In response to the problem facing college faculties of choosing textbooks that are both "readable" by students and adequate in content coverage, a text selection process has been developed that can be used with or without the aid of a reading specialist. The first step in the process, a preliminary check, examines each proposed text's publication…

  14. Radiological Defense. Textbook.

    ERIC Educational Resources Information Center

    Defense Civil Preparedness Agency (DOD), Washington, DC.

    This textbook has been prepared under the direction of the Defense Civil Preparedness Agency (DCPA) Staff College for use as a student reference manual in radiological defense (RADEF) courses. It provides much of the basic technical information necessary for a proper understanding of radiological defense and summarizes RADEF planning and expected…

  15. Digital Textbooks. Research Brief

    ERIC Educational Resources Information Center

    Johnston, Howard

    2011-01-01

    Despite their growing popularity, digital alternatives to conventional textbooks are stirring up controversy. With the introduction of tablet computers, and the growing trend toward "cloud computing" and "open source" software, the trend is accelerating because costs are coming down and free or inexpensive materials are becoming more available.…

  16. If Children Chose Textbooks.

    ERIC Educational Resources Information Center

    Sosniak, Lauren A.

    1990-01-01

    Fourth and sixth graders were engaged in the process of textbook selection in an effort to increase the understanding of student experiences with materials that have a substantial influence on curriculum and instruction. Results indicate that children do not, as a group, share a comprehensive point of view about basal readers. (SH)

  17. Textbooks: Costs and Issues

    ERIC Educational Resources Information Center

    Mize, Rita

    2004-01-01

    As community colleges seek to be as accessible as possible to students and attempt to retain low enrollment fees, manageable parking fees, and waiver of fees for those with financial needs, an additional and significant cost ? for textbooks and supplies ? has not been addressed systematically. While fees for a full-time student are $390 per…

  18. Making Textbook Reading Meaningful

    ERIC Educational Resources Information Center

    Guthrie, John T.; Klauda, Susan Lutz

    2012-01-01

    When students enter middle school, they are confronted with the necessity of learning from complex content-area textbooks. Many students find these texts boring, and they may lack the higher-order reading comprehension skills they need to tackle complex text. Yet the ability to read informational text is essential to success in middle school and…

  19. The Oldest Math Textbook.

    ERIC Educational Resources Information Center

    Blum, Christopher O.

    2002-01-01

    Asserts that when college mathematics is taught as one of the liberal arts, Euclid's Elements of Geometry, which is one of the oldest math textbooks, may still be the best, because it helps students understand what is "lovely about mathematics". Suggests that "Elements of Geometry" promotes the mental exercise that comes from careful reading and…

  20. Evaluating Environmental Chemistry Textbooks.

    ERIC Educational Resources Information Center

    Hites, Ronald A.

    2001-01-01

    A director of the Indiana University Center for Environmental Science Research reviews textbooks on environmental chemistry. Highlights clear writing, intellectual depth, presence of problem sets covering both the qualitative and quantitative aspects of the material, and full coverage of the topics of concern. Discusses the director's own approach…

  1. Beginning Pashto: Textbook.

    ERIC Educational Resources Information Center

    Tegey, Habibullah; Robson, Barbara

    This textbook is a component of "Beginning Pashto," a set of materials (including a student workbook, teacher's manual, glossary, and tapescripts) that teaches the Pashto language. The language taught is Afghan Pashto, particularly the standard central district dialect spoken in Kabul and in the official media. The text provides 14 units of study;…

  2. Moving Metric: Textbooks.

    ERIC Educational Resources Information Center

    Hauck, George F.

    1981-01-01

    Lists engineering textbooks that use SI units. Includes author(s), title, publisher, year, and author's or publisher's comments on the use of the SI units. Books are categorized by topic, such as engineering mechanics, mechanics of materials, fluid mechanics, thermodynamics, structural design, and hydrology. (CS)

  3. INDEX OF TEXTBOOK PRICES.

    ERIC Educational Resources Information Center

    GOLDSTEIN, HAROLD; AND OTHERS

    THE RISE IN COSTS OF TEXTBOOKS AND RELATED EDUCATIONAL MATERIALS WAS STUDIED TO PROVIDE INFORMATION WHICH WOULD ASSIST EDUCATION AUTHORITIES IN THE PREPARATION OF INSTITUTIONAL BUDGETS. THE STUDY WAS STRUCTURED INTO (1) ELEMENTARY-SECONDARY SCHOOL TEXTS AND RELATED MATERIALS AND (2) COLLEGE LEVEL TEXTS AND RELATED MATERIALS. DATA WERE OBTAINED…

  4. The Novel as Textbook

    ERIC Educational Resources Information Center

    Gareis, Elisabeth; Allard, Martine; Saindon, Jackie

    2009-01-01

    The use of authentic literature, especially novels, has proven electrifying for teachers as well as students: a development mirrored in the success of related methodologies and the increasing availability of materials accompanying literature. The benefits of using novels as textbooks are numerous. Research consistently shows the benefits of…

  5. Behind Textbook Censorship.

    ERIC Educational Resources Information Center

    Parker, Franklin; Parker, Betty

    Textbook censorship cases from Tennessee and Alabama have been brought before the U.S. Supreme Court. In east Tennessee, fundamentalist families objected to a 1983 Holt, Rinehart, and Winston reading series for grades 1-8. Federal District Judge Thomas G. Hull held that Hawkins County Schools had violated the families' First Amendment rights and…

  6. Textbook Representation of Prepositions

    ERIC Educational Resources Information Center

    Mukundan, Jayakaran; Roslim, Norwati

    2009-01-01

    This article presents a corpus-based investigation on English prepositions which are presented in three English language textbooks used by lower secondary schools in Malaysia. The aims were to find out the distributions of prepositions, its frequency order in comparison with the British National Corpus (BNC) and the differences in terms of their…

  7. Textbook Factor Demand Curves.

    ERIC Educational Resources Information Center

    Davis, Joe C.

    1994-01-01

    Maintains that teachers and textbook graphics follow the same basic pattern in illustrating changes in demand curves when product prices increase. Asserts that the use of computer graphics will enable teachers to be more precise in their graphic presentation of price elasticity. (CFR)

  8. Communicating BRCA1/2 genetic test results within the family: a qualitative analysis.

    PubMed

    Dancyger, Caroline; Wiseman, Mel; Jacobs, Chris; Smith, Jonathan A; Wallace, Melissa; Michie, Susan

    2011-08-01

    Genetic testing for BRCA1/2 mutations associated with hereditary breast and ovarian cancer reveals significant risk information about one's chances of developing cancer. It is important to study communication processes in families where members are undergoing genetic testing because the information received is crucial not just to the individual concerned but also to other members of the biological family. This study investigates family communication of BRCA1/2 test results from both the informants' and recipients' perspectives. A total of 10 female patients and 22 of their relatives were interviewed. Patients' and their relatives described feelings of responsibility for sharing genetic information within the family to enable others to reduce their risks of developing cancer. However, there were limits to an individuals' responsibility once key family members had been informed, who then had to take responsibility for continuing dissemination of information. Whilst there was an implicit responsibility to inform the family of a mutation, information was edited or withheld in the best interest of relatives, dependent upon their perceived emotional readiness, resilience and current life stage and circumstances. The pre-existing family culture and the impact previous cancer diagnoses had upon the family also influenced the process of communication. Findings are discussed in relation to extant literature and implications for clinical practice are considered. PMID:21797732

  9. The Holocaust as History and Human Rights: A Cross-National Analysis of Holocaust Education in Social Science Textbooks, 1970-2008

    ERIC Educational Resources Information Center

    Bromley, Patricia; Russell, Susan Garnett

    2010-01-01

    This article examines Holocaust education in secondary school social science textbooks around the world since 1970, using data coded from 465 textbooks from 69 countries. It finds that books and countries more connected to world society and with an accompanying emphasis on human rights, diversity in society and a depiction of international, rather…

  10. An Analysis of the Idea of State in Textbooks from Ottoman Empire to the Republic in Terms of the Relation between Education and Power

    ERIC Educational Resources Information Center

    Dogan, Necmettin

    2011-01-01

    The concept of state has a specific importance for Turkish-political culture. However, the influence of textbooks in constructing the state concept in Turkish culture from Ottoman to modern Turkish Republic has not been adequately researched. In this paper, the relation between the state perception in Turkish culture and textbooks from Ottoman to…

  11. Realization of Culture in English Textbooks in Chinese High School Level

    ERIC Educational Resources Information Center

    Aliakbari, Mohammad; Jamalvandi, Behrouz

    2012-01-01

    This study reflects on the presentation of culture in the English textbooks adopted in Chinese high school level. The categorization by Ramirez and Hall (1990) shaped the basis of the textbook analysis. The main objectives of the inquiry were to examine the quality of representation of source, target and other cultures in the ELT textbooks.…

  12. New Histories for a New State: A Study of History Textbook Content in Northern Ireland

    ERIC Educational Resources Information Center

    Terra, Luke

    2014-01-01

    This study examined the changing content of history textbooks in Northern Ireland, drawing on a sample of 15 textbooks published from 1968 to 2010. Findings from the content and narrative analysis indicated that following the introduction of the Northern Ireland Curriculum in 1991, history textbooks shifted from a narrative to source-driven…

  13. The Disappearance of Independence in Textbook Coverage of Asch's Social Pressure Experiments

    ERIC Educational Resources Information Center

    Griggs, Richard A.

    2015-01-01

    Asch's classic social pressure experiments are discussed in almost all introductory and social psychology textbooks. However, the results of these experiments have been shown to be misrepresented in textbooks. An analysis of textbooks from 1953 to 1984 revealed that although most of the responses on critical trials were independent correct ones,…

  14. Operant Conditioning Concepts in Introductory Psychology Textbooks and Their Companion Web Sites

    ERIC Educational Resources Information Center

    Sheldon, Jane P.

    2002-01-01

    Psychology instructors and textbook authors rate operant conditioning as one of the most essential concepts for students to learn, yet textbook writers, as well as students, can fall prey to misconceptions. This study is a content analysis of the presentation of operant conditioning in introductory psychology textbooks and their companion Web…

  15. When did "Withitness" Become More Important than Educational Psychology? Analyzing Textbook Vocabulary

    ERIC Educational Resources Information Center

    Holder, K. C.

    2006-01-01

    The purpose of this study was to conduct a content analysis of educational psychology textbook vocabulary published during or after 2000. Seven textbooks have been published and are currently in print. Textbook keywords, key concepts, vocabulary words and/or glossaries were analyzed to create a descriptive account of all words defined in the…

  16. Turkish, Indian, and American Chemistry Textbooks Use of Inscriptions to Represent "Types of Chemical Reactions"

    ERIC Educational Resources Information Center

    Aydin, Sevgi; Sinha, Somnath; Izci, Kemal; Volkmann, Mark

    2014-01-01

    The purpose of this study was to investigate inscriptions used in "Types of Chemical Reactions" topic in Turkish, Indian, and American chemistry textbooks. We investigated both the types of inscriptions and how they were used in textbooks to support learning. A conceptual analysis method was employed to determine how those textbooks use…

  17. Prominence of Scholarly Immediacy Terminology and References Found in 1999 to 2007 Online Teaching Textbooks

    ERIC Educational Resources Information Center

    Bean, Erik Paul

    2008-01-01

    Since the 1920s, textbook critics have maintained that textbooks should offer a homogenous editorial approach, including an acknowledgment of a mix of author opinion and scholarly research. Several researchers indicated that some textbooks are not homogenous. The purpose of this quantitative content analysis study was to examine whether…

  18. Biology School Textbooks and Their Role for Students' Success in Learning Sciences

    ERIC Educational Resources Information Center

    Pop-Pacurar, Irina; Ciascai, Liliana

    2010-01-01

    What is the quality of the Romanian biology textbooks? The article gives answers to this question by watching the evolution of a textbook and by suggesting an exercise for analyzing and assessing the alternative biology textbooks. The opportunity of this analysis has been offered to students, future teachers of biology, around the time when they…

  19. Data analysis software for the autoradiographic enhancement process. Volumes 1, 2, and 3, and appendix

    NASA Technical Reports Server (NTRS)

    Singh, S. P.

    1979-01-01

    The computer software developed to set up a method for Wiener spectrum analysis of photographic films is presented. This method is used for the quantitative analysis of the autoradiographic enhancement process. The software requirements and design for the autoradiographic enhancement process are given along with the program listings and the users manual. A software description and program listings modification of the data analysis software are included.

  20. New imidazo[1,2-b]pyrazoles as anticancer agents: synthesis, biological evaluation and structure activity relationship analysis.

    PubMed

    Grosse, Sandrine; Mathieu, Véronique; Pillard, Christelle; Massip, Stéphane; Marchivie, Mathieu; Jarry, Christian; Bernard, Philippe; Kiss, Robert; Guillaumet, Gérald

    2014-09-12

    Synthesis and functionalization strategies of the imidazo[1,2-b]pyrazole core were developed giving a rapid access to three series of novel imidazo[1,2-b]pyrazole type derivatives: C-2/C-6/C-7 trisubstituted, C-2/C-3/C-6 tri(hetero)arylated and C-2/C-3/C-6/C-7 tetrasubstituted imidazo[1,2-b]pyrazoles. 39 of the synthetized products were evaluated for in vitro anticancer activity using the MTT colorimetric assay against 5 human and 1 murine cancer cell lines. Promising in vitro growth inhibitory activities were exhibited by some of the target compounds. Of the 39 evaluated products, 4 displayed an IC50 ≤ 10 μM in the 6 cell lines analyzed (compounds 4d, 4g, 9a, 11a). A structure activity relationship analysis is also reported in this paper. PMID:25064349

  1. Cultural Representations of Minorities in Hungarian Textbooks

    ERIC Educational Resources Information Center

    Weninger, Csilla; Williams, J. Patrick

    2005-01-01

    This article reports research analyzing cultural representations of minorities in Hungarian elementary school textbooks currently used throughout the country. A convenient sample representing more than 75% of first and fourth grade reading books was collected from three academic and public libraries in Hungary. Using content analysis techniques,…

  2. Survey of International Trade/Economics Textbooks.

    ERIC Educational Resources Information Center

    Lucier, Richard L.

    1992-01-01

    Reviews 14 international economics textbooks to help instructors with selection. Includes organization and structure, topics covered, and characteristics of the texts. Suggests considerations such as course length, level of abstraction desired, opinion of numerically based graphical analysis, extensiveness of examples and applications, and whether…

  3. "Modern Secondary Economics Textbooks and Ideological Bias."

    ERIC Educational Resources Information Center

    Romanish, Bruce A.

    1983-01-01

    An analysis of the way 10 high school economics textbooks treat the topics of other economic systems, labor, role of government, and environment showed that the texts present free enterprise principles to the exclusion of other ideas. Topics which, if included, would provide a more balanced overall treatment are discussed. (RM)

  4. Socialism in High School Social Studies Textbooks

    ERIC Educational Resources Information Center

    Neumann, Richard

    2012-01-01

    This article concerns textbook analysis regarding the presentation of socialism in four leading high school social studies books, one in each of the following subjects: United States history, world history, United States government, and economics. Findings indicate that students relying on these texts to gain understanding of socialism and…

  5. Introductory Textbooks and Psychology's Core Concepts.

    ERIC Educational Resources Information Center

    Zechmeister, Jeanne S.; Zechmeister, Eugene B.

    2000-01-01

    Explores two studies: (1) a content analysis of the key terms and concepts in the glossaries of 10 full-length, college, introductory psychology textbooks; and (2) a national sample of experienced introductory psychology instructors evaluated the terms and concepts found in the glossaries and rated the importance of these terms and concepts for…

  6. The Internationalization of Introductory Accounting Textbooks.

    ERIC Educational Resources Information Center

    Bracken, Robert M.; Urbancic, Frank R.

    1997-01-01

    Analysis of 24 introductory accounting textbooks identified number and percentage of pages and chapters with international content. Financial accounting books generally had the most international content. There were wide variations in topics presented, extent of coverage, and number of relevant assignments. (SK)

  7. Home Management Textbooks and the "Ideal" Family.

    ERIC Educational Resources Information Center

    Williams, Sue W.; Nickols, Sharon Y.

    1981-01-01

    Content analysis of systematically selected paragraphs of the three major textbooks used in teaching college-level home management courses was used to examine the hypothesis that they portray, and implicitly endorse, an ideal family type. Implications of the findings for home economists and family practitioners are discussed. (Author/CT)

  8. Hartree-Fock and Density Functional Theory analysis of N-phenyl-1,2-naphthylamine.

    PubMed

    Sengül, Meryem Şenay; Cınaklı, Salih; Böyükata, Mustafa

    2013-10-01

    The energetic properties of N-phenyl-1,2-naphthylamine have been determined using a series of theoretical calculations and their geometries have been optimized using Hartree-Fock (HF) and Density Functional Theory (DFT). The structures have been examined to predict lower-lying energy structure of the title molecule within the considered potential conformations. Structural parameters and energetics, such as total energies with Zero-Point energy corrections, highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) energies, have been analyzed and compared between the structural isomers. 1-NPN is the most commonly used molecule for many purposes, mainly as the fluorescent probe in binding assays. When compared the two structures, we showed that 2-NPN isomers are energetically more stable than 1-NPN isomers. It is possible that 2-NPN may be favored in many applications with respect to 1-NPN, and thus its function may be understood in the light of its molecular and structural properties. PMID:23786979

  9. Hartree-Fock and Density Functional Theory analysis of N-phenyl-1,2-naphthylamine

    NASA Astrophysics Data System (ADS)

    Şengül, Meryem Şenay; Cınaklı, Salih; Böyükata, Mustafa

    2013-10-01

    The energetic properties of N-phenyl-1,2-naphthylamine have been determined using a series of theoretical calculations and their geometries have been optimized using Hartree-Fock (HF) and Density Functional Theory (DFT). The structures have been examined to predict lower-lying energy structure of the title molecule within the considered potential conformations. Structural parameters and energetics, such as total energies with Zero-Point energy corrections, highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) energies, have been analyzed and compared between the structural isomers. 1-NPN is the most commonly used molecule for many purposes, mainly as the fluorescent probe in binding assays. When compared the two structures, we showed that 2-NPN isomers are energetically more stable than 1-NPN isomers. It is possible that 2-NPN may be favored in many applications with respect to 1-NPN, and thus its function may be understood in the light of its molecular and structural properties.

  10. Structure analysis and photochemistry of adsorbates on platinum and palladium surfaces. [1,2-dichloroethene

    SciTech Connect

    Grassian, V.H.

    1987-05-01

    The vibrational spectra of benzene and toluene adsorbed on Pd(111) indicates at 180K these molecules weakly bond to the surface. The adsorption of benzene and toluene on Pt(111) is much stronger as indicated by large frequency shifts from gas phase values. Pyridine adsorption on both Pt(111) and Pd(111) was studied as a function of temperature. At room temperature pyridine decomposes on the surface to form an ..cap alpha..-pyridyl fragment (NC/sub 5/H/sub 4/) on Pt(111), whereas the molecule remains intact on Pd(111). The electron energy loss spectra of pyridine adsorbed on these surfaces is compared to the ir spectra of two osmium cluster compounds: Os/sub 3/(CO)/sub 11/(NC/sub 5/H/sub 5/), a pyridine complex, and HOs/sub 3/(CO)/sub 10/(NC/sub 5/H/sub 4/), a pyridyl complex. The stronger interaction of these molecules to the platinum surface is a consequence of the stronger bonding of the 5d orbitals as compared to the 4d orbitals. The uv photochemistry of 2-butene and 1,2-dichloroethene when adsorbed on Pt and Pd surfaces was also studied.

  11. Large data analysis: automatic visual personal identification in a demography of 1.2 billion persons

    NASA Astrophysics Data System (ADS)

    Daugman, John

    2014-05-01

    The largest biometric deployment in history is now underway in India, where the Government is enrolling the iris patterns (among other data) of all 1.2 billion citizens. The purpose of the Unique Identification Authority of India (UIDAI) is to ensure fair access to welfare benefits and entitlements, to reduce fraud, and enhance social inclusion. Only a minority of Indian citizens have bank accounts; only 4 percent possess passports; and less than half of all aid money reaches its intended recipients. A person who lacks any means of establishing their identity is excluded from entitlements and does not officially exist; thus the slogan of UIDAI is: To give the poor an identity." This ambitious program enrolls a million people every day, across 36,000 stations run by 83 agencies, with a 3-year completion target for the entire national population. The halfway point was recently passed with more than 600 million persons now enrolled. In order to detect and prevent duplicate identities, every iris pattern that is enrolled is first compared against all others enrolled so far; thus the daily workflow now requires 600 trillion (or 600 million-million) iris cross-comparisons. Avoiding identity collisions (False Matches) requires high biometric entropy, and achieving the tremendous match speed requires phase bit coding. Both of these requirements are being delivered operationally by wavelet methods developed by the author for encoding and comparing iris patterns, which will be the focus of this Large Data Award" presentation.

  12. Analysis of 1.2 kV SiC buried-grid VJFETs

    NASA Astrophysics Data System (ADS)

    Lim, J.-K.; Bakowski, M.

    2010-11-01

    1.2 kV buried-grid vertical 4H-SiC JFET structures with normally-on (N-on) and normally-off (N-off) designs were investigated by simulation. The static and dynamic characteristics of the devices were determined over a wide range of current, voltage and gate drive conditions in the temperature range -50 °C to 250 °C. In this paper, the properties of the N-on designs with threshold voltages (Vth) -50 and -10 V are compared with the properties of the N-off design (Vth=0). For constant Vth, on-resistance decreases and output current increases with increasing channel doping and decreasing channel width. Simulations show that an on-resistance lower than 2 mΩ cm2 at 250 °C can be obtained provided the channel width is smaller than 1.5 and 0.5 μm for N-on JFETs with Vth=-50 V and Vth=-10 V, respectively, and lower than 3 mΩ cm2 provided the channel width is smaller than 0.3 μm for the N-off JFET. At the same time, Eon decreases and Eoff increases with increased channel doping concentration and reduced channel width. It is shown that Eon decreases with increasing channel doping concentration due to the reduced channel resistance for the faster turn-on process. Eoff increases with increasing channel doping concentration due to the increase in gate-drain capacitance, CGD.

  13. Comparison of 1-, 2-, and 3-dimensional modeling of the TFTR for nuclear radiation transport analysis

    SciTech Connect

    Ku, L.P.; Kolibal, J.G.; Liew, S.L.

    1985-09-01

    The computational models of the TFTR constructed for the radiation transport analysis for the Q approx. 1 demonstration are summarized and reviewed. These models can be characterized by the dimensionality required to describe the geometry, and by the numerical methods of solving the transport equation. Results obtained with these models in the test cell are compared and discussed.

  14. Langley Stability and Transition Analysis Code (LASTRAC) Version 1.2 User Manual

    NASA Technical Reports Server (NTRS)

    Chang, Chau-Lyan

    2004-01-01

    LASTRAC is a general-purposed, physics-based transition prediction code released by NASA for Laminar Flow Control studies and transition research. The design and development of the LASTRAC code is aimed at providing an engineering tool that is easy to use and yet capable of dealing with a broad range of transition related issues. It was written from scratch based on the state-of-the-art numerical methods for stability analysis and modern software technologies. At low fidelity, it allows users to perform linear stability analysis and N-factor transition correlation for a broad range of flow regimes and configurations by using either the linear stability theory or linear parabolized stability equations method. At high fidelity, users may use nonlinear PSE to track finite-amplitude disturbances until the skin friction rise. This document describes the governing equations, numerical methods, code development, detailed description of input/output parameters, and case studies for the current release of LASTRAC.

  15. Analysis of SLX4/FANCP in non-BRCA1/2-mutated breast cancer families

    PubMed Central

    2012-01-01

    Background Genes that, when mutated, cause Fanconi anemia or greatly increase breast cancer risk encode for proteins that converge on a homology-directed DNA damage repair process. Mutations in the SLX4 gene, which encodes for a scaffold protein involved in the repair of interstrand cross-links, have recently been identified in unclassified Fanconi anemia patients. A mutation analysis of SLX4 in German or Byelorussian familial cases of breast cancer without detected mutations in BRCA1 or BRCA2 has been completed, with globally negative results. Methods The genomic region of SLX4, comprising all exons and exon-intron boundaries, was sequenced in 94 Spanish familial breast cancer cases that match a criterion indicating the potential presence of a highly-penetrant germline mutation, following exclusion of BRCA1 or BRCA2 mutations. Results This mutational analysis revealed extensive genetic variation of SLX4, with 21 novel single nucleotide variants; however, none could be linked to a clear alteration of the protein function. Nonetheless, genotyping 10 variants (nine novel, all missense amino acid changes) in a set of controls (138 women and 146 men) did not detect seven of them. Conclusions Overall, while the results of this study do not identify clearly pathogenic mutations of SLX4 contributing to breast cancer risk, further genetic analysis, combined with functional assays of the identified rare variants, may be warranted to conclusively assess the potential link with the disease. PMID:22401137

  16. Part I. Synthesis and characterization of C2 substituted imidazolium room temperature ionic liquids. Part II. Survey and analysis of organic chemistry textbooks

    NASA Astrophysics Data System (ADS)

    Ennis, Elliot G.

    -ended portion of the survey data, an analysis of organic chemistry textbooks was created. Books were analyzed for number and types of problems, number of example problems, and number of problems containing answers in the back of the book. The analysis of the thirteen books revealed there was a statistically significant difference between the books in number and types of problems. This work will reveal the findings of the analysis.

  17. Altair Lander Life Support: Design Analysis Cycles 1, 2, and 3

    NASA Technical Reports Server (NTRS)

    Anderson, Molly; Rotter, Hank; Stambaugh, Imelda; Curley, Su

    2009-01-01

    NASA is working to develop a new lunar lander to support lunar exploration. The development process that the Altair project is using for this vehicle is unlike most others. In Lander Design Analysis Cycle 1 (LDAC-1), a single-string, minimum functionality design concept was developed, including life support systems for different vehicle configuration concepts, first for a combination of an ascent vehicle and a habitat with integral airlocks, and then for a combined ascent vehicle-habitat with a detachable airlock. In LDAC-2, the Altair team took the ascent vehicle-habitat with detachable airlock and analyzed the design for the components that were the largest contributors to the risk of loss of crew (LOC). For life support, the largest drivers were related to oxygen supply and carbon dioxide control. Integrated abort options were developed at the vehicle level. Many life support failures were not considered to result in LOC because they had a long enough time to effect that abort was considered a feasible option to safely end the mission before the situation became life threatening. These failures were then classified as loss of mission (LOM) failures. Many options to reduce LOC risk were considered, and mass efficient solutions to the LOC problems were added to the vehicle design at the end of LDAC-2. In LDAC-3, the new design was analyzed for large contributors to the risk of LOM. To avoid ending the mission early or being unable to accomplish goals like performing all planned extravehicular activities (EVAs), various options were assessed for their combination of risk reduction and mass cost. This paper outlines the major assumptions, design features, and decisions related to the development of the life support system for the Altair project through LDAC-3.

  18. Annex D-200 Area Interim Storage Area Final Safety Analysis Report [FSAR] [Section 1 & 2

    SciTech Connect

    CARRELL, R D

    2002-07-16

    The 200 Area Interim Storage Area (200 Area ISA) at the Hanford Site provides for the interim storage of non-defense reactor spent nuclear fuel (SNF) housed in aboveground dry cask storage systems. The 200 Area ISA is a relatively simple facility consisting of a boundary fence with gates, perimeter lighting, and concrete and gravel pads on which to place the dry storage casks. The fence supports safeguards and security and establishes a radiation protection buffer zone. The 200 Area ISA is nominally 200,000 ft{sup 2} and is located west of the Canister Storage Building (CSB). Interim storage at the 200 Area ISA is intended for a period of up to 40 years until the materials are shipped off-site to a disposal facility. This Final Safety Analysis Report (FSAR) does not address removal from storage or shipment from the 200 Area ISA. Three different SNF types contained in three different dry cask storage systems are to be stored at the 200 Area ISA, as follows: (1) Fast Flux Test Facility Fuel--Fifty-three interim storage casks (ISC), each holding a core component container (CCC), will be used to store the Fast Flux Test Facility (FFTF) SNF currently in the 400 Area. (2) Neutron Radiography Facility (NRF) TRIGA'--One Rad-Vault' container will store two DOT-6M3 containers and six NRF TRIGA casks currently stored in the 400 Area. (3) Commercial Light Water Reactor Fuel--Six International Standards Organization (ISO) containers, each holding a NAC-I cask4 with an inner commercial light water reactor (LWR) canister, will be used for commercial LWR SNF from the 300 Area. An aboveground dry cask storage location is necessary for the spent fuel because the current storage facilities are being shut down and deactivated. The spent fuel is being transferred to interim storage because there is no permanent repository storage currently available.

  19. Electronic versus Traditional Textbooks: A Comparison of College Textbook Formats

    ERIC Educational Resources Information Center

    Siebenbruner, J.

    2011-01-01

    The author's quasi-experimental study compares undergraduate students' academic performance and experiences as a function of using electronic (n = 117) versus traditional (n = 116) textbooks in a developmental psychology course. Student exam scores did not differ significantly as a function of textbook format. Students who used the traditional…

  20. What Every Textbook Evaluator Should Know.

    ERIC Educational Resources Information Center

    Muther, Connie

    1985-01-01

    Presents information on textbook design and marketing practices, and their consequences for textbook content; recommends that selection committees firmly define the role of the textbook in curriculum, and adapt published materials to their school system's unique requirements. (MCG)

  1. Trends in Environmental Education Images of Textbooks from Western and Eastern European Countries and Non-European Countries

    ERIC Educational Resources Information Center

    Carvalho, Graca S.; Tracana, Rosa Branca; Skujiene, Grita; Turcinaviciene, Jurga

    2011-01-01

    Textbook analysis is seen as a major element for studying environmental education addressing pupils, image analysis being rather relevant when studying textbooks written in 11 languages. We analysed 25 textbooks from 14 countries addressed to 14-16-year-old pupils, focusing on: (1) local and foreign/global images; (2) urban/rural and nature…

  2. Color stabilizes textbook visual processing

    NASA Astrophysics Data System (ADS)

    Paeglis, Roberts; Orlovska, Madara; Bluss, Kristaps

    2011-05-01

    We report that pages with color illustrations elicit more homogeneous duration of fixations in 12 elementary school children. For six first graders, we compared the reading of the color cover and a greyscale illustrated text page of an abcbook. For six second grade pupils, we demonstrated a color and a greyscale fairytale book page. The fixations we recorded are concordant with the duration for preschoolers reported elsewhere. Average duration of fixations on a page with color elements are shorter than on greyscale ones, 425 (SE=13.4) and 461 (18.3) ms, respectively. The correlation analysis lends support that a color page is processed differently than its greyscale version. Fixation duration for color and greyscale condition was correlated neither for text (r=.567, p=.241) nor for images (r=.517, p=.294) for the second graders. Our research suggests that color elements on textbook pages encourage emergent readers to perform better in acquisition.

  3. Fluorescence spectroscopic analysis of ligand binding to kringle 1 + 2 + 3 and kringle 1 fragments from human plasminogen.

    PubMed

    Matsuka, Y V; Novokhatny, V V; Kudinov, S A

    1990-05-31

    The ligand binding of kringle 1 + 2 + 3 and kringle 1 from human plasminogen has been investigated by fluorescence spectroscopy. Analysis of fluorescence titration of kringle 1 + 2 + 3 with 6-aminohexanoic acid shows that this fragment, besides the high-affinity lysine-binding site with Kd = 2.9 microM, contains two additional lysine-binding sites which differ in binding strength (Kd = 28 microM and Kd = 220 microM). This strongly suggests the existence of a lysine-binding site in each of the first three kringles. 6-Aminohexanoic acid, pentylamine, pentanoic acid and arginine were used for investigation of the ligand specificity of isolated kringle 1 prepared by pepsin hydrolysis of kringle 1 + 2 + 3. It has been established that kringle 1 has high affinity to 6-aminohexanoicacid, pentylamine and arginine (Kd values are 3.2 microM, 4.8 microM and 4.3 microM, respectively). At the same time pentanoic acid did not bind with kringle 1. These facts indicate, firstly, a broad ligand specificity of kringle 1 and, secondly, the paramount importance of the positively charged group of the ligand for its interaction with lysine-binding site of this kringle. PMID:2163837

  4. Africa in Social Studies Textbooks.

    ERIC Educational Resources Information Center

    Zekiros, Astair; Wiley, Marylee

    Based on an examination of 50 general social studies textbooks, the report discusses the most frequently found biases, misconceptions, omissions, inaccuracies, and misrepresentations. Criteria for judging the textbooks include: readable and suitable materials; accurate and current content; presentation of Africa as a diverse continent; open…

  5. College Student Use of Textbooks

    ERIC Educational Resources Information Center

    Aagaard, Lola; Skidmore, Ronald L.

    2009-01-01

    It has been reported (Aagaard & Skidmore, 2004; Sikorski et al., 2002) that only a minority of college students actually read the course textbook in preparation for examinations. Although professors widely lament students' propensity to ignore the carefully chosen textbooks, research specifically investigating why this phenomenon occurs…

  6. How Texas Rewrote Your Textbooks.

    ERIC Educational Resources Information Center

    Moyer, Wayne A.

    1985-01-01

    Reviews issues and events related to adopting high school biology textbooks in Texas. Specific reference is given to the viewpoints of Mel and Norma Gabler. It is argued that factors controlling textbook content should not result from past market forces, but from a permanent science constituency and an informed public. (DH)

  7. Family Textbooks Twelve Years Later

    ERIC Educational Resources Information Center

    Glenn, Norval D.

    2009-01-01

    In 1996 the author conducted an intensive study of twenty current family textbooks published in the United States, the results of which appeared in an academic journal article and a nonacademic report in 1997. The study included practical "functionalist" marriage and family textbooks and more academic sociology of the family books; these works…

  8. How to Read Technical Textbooks.

    ERIC Educational Resources Information Center

    Association of American Publishers, New York, NY.

    Intended for college bound students, this booklet explores textbook components to help students in their approach to studying technical information. After defining technical material and describing how to recognize it, the booklet discusses (1) symbols, (2) equations, (3) formulas, (4) theorems, (5) placement of symbols in textbooks, (6) tables,…

  9. South Korean Digital Textbook Project

    ERIC Educational Resources Information Center

    Kim, Jackie Hee-Young; Jung, Hye-Yoon

    2010-01-01

    South Korea has adopted the widespread use of digital textbooks. Part school reform and part an effort to prepare today's children for tomorrow's challenging world, the way in which this effort was implemented and the lessons learned are valuable. This article highlights the history of the digital textbook project and compares printed textbooks…

  10. Vitamin E: Textbooks Require Updating

    ERIC Educational Resources Information Center

    Azzi, Angelo; Zingg, Jean-Marc

    2005-01-01

    Vitamin E was discovered in 1922, but in more than 60 years many new findings have added to the early one. However, its description in many textbooks has not been proportionally updated. The result is an inaccurate, incomplete, and often incorrect description of the function of this vitamin. In some other textbooks, vitamin E is absolutely…

  11. Genocide in World History Textbooks.

    ERIC Educational Resources Information Center

    Fleming, Dan

    1987-01-01

    Analyzes the treatment of genocide in secondary world history textbooks. Acknowledges that textbook space is limited, but argues that all should contain some reference to the subject. Concludes that the Armenian genocide, as well as the genocidal acts of Hitler, Stalin, and Mao Tse-tung should be presented in all survey texts. (GEA)

  12. Can Tech Transcend the Textbook?

    ERIC Educational Resources Information Center

    Waters, John K.

    2011-01-01

    After traveling a long, tortuous road, the much-anticipated e-book revolution has finally arrived. So where is the revolution in the "e-textbook" market? According to the National Association of College Stores (NACS), digital books currently account for less than 3 percent of textbook sales. NACS expects that percentage to reach 10 to 15 percent…

  13. Conveying the vision of science: Meta-lessons on inquiry found in a content analysis of two high school biology textbooks

    NASA Astrophysics Data System (ADS)

    Chandler, Patricia Mcmillan

    This descriptive study examined two high school biology textbooks for differences in opportunities for student inquiry as reported by Romey's Index of Student Involvement. The National Research Council's National Science Education Standards emphasizes the importance of students becoming "independent inquirers about the natural world." The systematic examination of student textbooks is an significant aspect in monitoring the state of science education in contemporary classrooms. Over 81% of text sampled in PRENTICE HALL Biology was categorized as fact, definition, or author's conclusion while 7% qualified as engaging students in inquiry. Biology: A Community Context had a more balanced distribution with 42% of sentences being categorized as fact, definition, or author's conclusion and 28% qualifying as engaging students in inquiry. Chi-square (chi2) statistics for the categories of non-inquiry/inquiry were significant, indicating that the two textbooks differ significantly as to their emphases on opportunities for inquiry. The investigation also compared two different sample sizes: the literature-recommended sample of 5% of text and a smaller 250-sentence sample. The frequency distribution across the 10 categories of non-inquiry/inquiry was very similar for the two sample sizes. PRENTICE HALL Biology fell below the recommended Index of Student Involvement range in both sampling techniques, while Biology: A Community Context fell in the recommended range for the Index of Student Involvement in both sampling techniques. This seems to indicate that the smaller sample size could be used appropriately to compare potential student textbooks by textbook adoption committees and curriculum planners. Biology textbooks that are judged to have relatively high amounts of inquiry are recommended for those who want to implement the national standards.

  14. KIR and HLA haplotype analysis in a family lacking the KIR 2DL1-2DP1 genes

    PubMed Central

    Vojvodić, S; Ademović-Sazdanić, D

    2015-01-01

    The killer cell immunoglobulin-like receptor (KIR) gene cluster exhibits extensive allelic and haplotypic diversity that is observed as presence/absence of genes, resulting in expansion and contraction of KIR haplotypes and by allelic variation of individual KIR genes. We report a case of KIR pseudogene 2DP1 and 2DL1 gene absence in members of one family with the children suffering from acute myelogenous leukemia (AML). Killer cell immunoglobulin-like receptor low resolution genotyping was performed by the polymerase chain reaction (PCR)-sequence-specific primers (SSP)/sequence-specific oligonucleotide (SSO) method and haplotype assignment was done by gene content analysis. Both parents and the maternal grandfather, shared the same Cen-B2 KIR haplotype, containing KIR 3DL3, -2DS2, -2DL2 and -3DP1 genes. The second haplotype in the KIR genotype of the mother and grandfather was Tel-A1 with KIR 2DL4 (normal and deleted variant), -3DL1, -22 bp deletion variant of the 2DS4 gene and -3DL2, while the second haplotype in the KIR genotype of the father was Tel-B1 with 2DL4 (normal variant), -3DS1, -2DL5, -2DS5, -2DS1 and 3DL2 genes. Haplotype analysis in all three offsprings revealed that the children inherited the Cen-B2 haplotype with the same gene content but two of the children inherited a deleted variant of the 2DL4 gene, while the third child inherited a normal one. The second haplotype of all three offspring contained KIR 2DL4, -2DL5, -2DS1, -2DS4 (del 22bp variant), -2DS5, -3DL1 and -3DL2 genes, which was the basis of the assumption that there is a hybrid haplotype and that the present 3DL1 gene is a variant of the 3DS1 gene. Due to consanguinity among the ancestors, the results of KIR segregation analysis showed the existence of a very rare KIR genotype in the offspring. The family who is the subject of this case is even more interesting because the father was 10/10 human leukocyte antigen (HLA)-matched to his daughter, all members of the family have the

  15. Halogen bonding in the antibacterial 1,2,4-triazole-3-thione derivative - Spectroscopic properties, crystal structure and conformational analysis

    NASA Astrophysics Data System (ADS)

    Miroslaw, Barbara; Plech, Tomasz; Wujec, Monika

    2015-03-01

    The molecular structure of 4-(4-bromophenyl)-5-(3-chlorophenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (TP-4) has been determined by the X-ray diffraction experiment and compared to the geometry calculated in the ground state by using HF and DFT methods. The compound crystallizes in the triclinic P-1 space group. To explain the observed rotational disorder of meta-chloro-substituted aromatic ring the conformational analysis was performed for TP-4 and the molecular energy profile has been obtained. The vibrational frequencies in the solid state were recorded and compared to the calculated in the ground state. The molecular electrostatic potential isosurfaces (MEPS) were calculated to confirm the role of halogen bonds in stabilizing the crystal structure.

  16. Students' Intentions to Purchase Electronic Textbooks

    ERIC Educational Resources Information Center

    Stone, Robert W.; Baker-Eveleth, Lori J.

    2013-01-01

    Textbooks have played an important role in education for decades. Given the significant number of technology applications in education, it is not surprising that at least one such application is the electronic textbook (e-textbook). There are a variety of motivations to adopt an e-textbook, including frequent content updates and low costs. The…

  17. The Future of E-Textbooks

    ERIC Educational Resources Information Center

    Lokar, Matija

    2015-01-01

    Electronic versions of textbooks (e-textbooks) have recently become a hot topic in the educational community. A good e-textbook should be quite different from a printed textbook. It should provide much more besides the obvious additions and improvements such as interactivity, multimedia, and ease of navigation. As the need for individual approach…

  18. Textbooks: Sacred Cow or Sacred Trust?

    ERIC Educational Resources Information Center

    Thompson, Patricia J.

    These are the reflections of a textbook author in the course of revising a secondary school textbook. While the average life of a textbook is five years, many stay in schools for much longer. A textbook author or editor must therefore attempt to produce a book that will be relevant and meaningful for children years in the future. This involves the…

  19. Writing from Teaching: A Textbook Writer's Tale

    ERIC Educational Resources Information Center

    Hatch, Mary Jo

    2007-01-01

    A textbook author tells of her early struggle to become a textbook writer, the long journey and the many detours she took along the way to getting her first textbook published. Having identified early in her career that writing a textbook was her chosen way to have an impact on her field of organization theory, she encountered many obstacles to…

  20. The Role and Characteristics of Tactile Graphics in Secondary Mathematics and Science Textbooks in Braille

    ERIC Educational Resources Information Center

    Smith, Derrick W.; Smothers, Sinikka M.

    2012-01-01

    Introduction: The purpose of the study presented here was to determine how well tactile graphics (specifically data analysis graphs) in secondary mathematics and science braille textbooks correlated with the print graphics. Method: A content analysis was conducted on 598 separate data analysis graphics from 10 mathematics and science textbooks.…

  1. The Analysis of the Changes in Integration of Nature of Science into Turkish High School Chemistry Textbooks: Is There Any Development?

    ERIC Educational Resources Information Center

    Aydin, Sevgi; Tortumlu, Selma

    2015-01-01

    To attain the goal of scientific literacy, the nature of science (NOS) is one of the areas that should be addressed. In many countries, the training of scientifically literate generations is a fundamental aim of science education, as a result there is an emphasis on NOS in science curricula and curricular materials. Textbooks prepared to teach…

  2. What Boys and Girls Learn through Song: A Content Analysis of Gender Traits and Sex Bias in Two Choral Classroom Textbooks

    ERIC Educational Resources Information Center

    Hawkins, Patrick J.

    2007-01-01

    In an effort to further the understanding of gender traits or sexual bias that high school-aged choral music students might be exposed to in their curricular materials, two choral textbooks Choral Connections Beginning Level 1 Treble Voices and Choral Connections Beginning Level 1 Tenor-Bass Voices published by Glencoe MacGraw-Hill in 1999 were…

  3. Analysis of the Representation of Cretaceous Period in Textbooks Used in Schools in the Western Region of the City of Ituiutaba, Minas Gerais, Brazil

    ERIC Educational Resources Information Center

    Alves, Emerson J. F.; Moura, Gerusa G.; dos A. Candeiro, Carlos R.

    2013-01-01

    This article aims to analyze the geography textbooks, which are being used in the public schools of the city of Ituiutaba, Depth of Minas Gerais, Brazil. The research also seeks to address the ways and methods being employed by the teachers of these schools for studies that include the teaching of Geology and Geosciences. In this study, survey…

  4. Europe in U.S. Social Studies: Textbooks and Teaching Materials. (Case Study: Germany) and Executive Summary. A Qualitative and Quantitative Analysis.

    ERIC Educational Resources Information Center

    Kraemer, Dagmar; Stassen, Manfred

    This study examines the representation of Western Europe, particularly Germany, in world history, world geography, western civilization, and U.S. history textbooks used in U.S. social studies classrooms. The goal of the study was to identify avoidable imbalances in the representations of Germany and Europe, point to areas in which the portrayals…

  5. Representation of Scientific Methodology in Secondary Science Textbooks

    NASA Astrophysics Data System (ADS)

    Binns, Ian C.; Bell, Randy L.

    2015-10-01

    This study explored how eight widely used secondary science textbooks described scientific methodology and to what degree the textbooks' examples and investigations were consistent with this description. Data consisted of all text from student and teacher editions that referred to scientific methodology and all investigations. Analysis used an ethnographic content analysis approach. Results indicated that all eight textbooks presented mixed views of scientific methodology in their initial descriptions. Five textbooks emphasized the stereotypical "scientific method," while the other three placed more emphasis on the more appropriate view that scientists use a variety of methods when conducting investigations. Results also revealed that the initial descriptions, examples, and investigations were inconsistent in six of the eight textbooks. These findings suggest that compared to earlier investigations, textbooks have somewhat broadened their explicit descriptions of scientific methodology, but continue to implicitly present a more narrow and traditional view through text and investigations. This inconsistency is likely to lead to confusion as students try to make sense of the richness and complexity of ways that scientists construct knowledge.

  6. Survey of Labor Economics Textbooks.

    ERIC Educational Resources Information Center

    Maxwell, Nan L.

    1985-01-01

    Labor economics textbooks for use with college students were surveyed. Information concerning intended audience, content, and teaching aids is provided for each text. Criteria used in evaluating the texts is provided. (RM)

  7. Textbook Selection: Clearing the Fog.

    ERIC Educational Resources Information Center

    Hollabaugh, Mark

    1989-01-01

    Provides step-by-step procedures for developing an index which uses the Gunning Fog technique to evaluate the level of reading difficulty of textbooks. Cites examples, illustrations, and several warnings in the discussion. (RT)

  8. An Analysis of Activities in Saudi Arabian Middle School Science Textbooks and Workbooks for the Inclusion of Essential Features of Inquiry

    NASA Astrophysics Data System (ADS)

    Aldahmash, Abdulwali H.; Mansour, Nasser S.; Alshamrani, Saeed M.; Almohi, Saeed

    2016-01-01

    This study examines Saudi Arabian middle school science textbooks' coverage of the essential features of scientific inquiry. All activities in the middle school science textbooks and workbooks were analyzed by using the scientific inquiry `essential features' rubric. The results indicated that the essential features are included in about 59 % of the analyzed science activities. However, feature 2, `making learner give priority to evidence in responding to questions' and feature 3, `allowing learner to formulate explanations from evidence' appeared more frequently than the other three features (feature 1: engaging learner in scientifically oriented questions, feature 4: helping learner connect explanations to scientific knowledge, and feature 5: helping learner communicate and justify explanations to others), whether in the activities as a whole, or in the activities included in each of the four science domains (physical science, Earth science, life science and chemistry). These features are represented in almost all activities. This means that almost all activities in the middle school science textbooks and the workbooks include features 2 and 3. Meanwhile, the mean level of inclusion of the five essential features of scientific inquiry found in the middle school science textbooks and workbooks as a whole is 2.55. However, results found for features 1, 4, 5 and for in-level inclusion of the inquiry features in each of the science domains indicate that the inclusion of the essential inquiry features is teacher-centred. As a result, neither science textbooks nor workbooks provide students with the opportunity or encouragement to develop their inquiry skills. Consequently, the results suggest important directions for educational administrators and policy-makers in the preparation and use of science educational content.

  9. Determination and Analysis of Stations Coordinates Based on Starlette and LAGEOS-1 &-2 Satellites Laser Ranging Data

    NASA Astrophysics Data System (ADS)

    Gourine, Bachir; Kahlouche, Salem; Belbachir, M. F.

    2010-05-01

    The present work deals with the calculation of International Laser Ranging Service (ILRS) network not only based on observations of both LAGEOS satellites (at altitude of 6000 km) but also on those of Low Earth Orbit (LEO) satellites, such as Starlette (at altitude of 800 km). The challenge is to achieve good quality on stations coordinates by inter-satellite combination of High and Low satellites data. The methodology adopted, in this paper, comprises three main steps: a. The orbit restitution of different tracked satellites is performed by the GINS (Geodesy by Simultaneous Numerical Integration) software (GRGS, France), based on purely dynamical approach. b. The estimation of stations coordinates updates and of Earth orientation parameters is performed using the MATLO (MAThematics for Localization and Orbitography) software (IGN, France), which can also determine orbit correction via simply kinematical assumptions. This estimation provides weekly time series of stations positions, in which their analysis permits to make in evidence the geophysical phenomena effects on the station vertical coordinate (Up component). c. The analysis of results with frequency analysis by FAMOUS software (OCA, France) and noise study (type and level of noise estimation) by Allan variance method. The data concern the laser measurements of different satellites according to different combinations: LAGEOS-1 (LA-1), LAGEOS-1&LAGEOS-2 (LA-1&-2) and LAGEOS-1&Starlette (LA-1&STAR), for a relatively long period of 14 years (between October 1993 and February 2007). Finally, the results about the performed methodology are presented and discussed. Key words: Orbit restitution, Inter-satellite combination, SLR technique, Frequency analysis, Noise study

  10. The Intercultural Component in Textbooks for Teaching a Service Technical Writing Course

    ERIC Educational Resources Information Center

    Matveeva, Natalia

    2007-01-01

    This research article investigates new developments in the representation of the intercultural component in textbooks for a service technical writing course. Through textual analysis, using quantitative and qualitative techniques, I report discourse analysis of 15 technical writing textbooks published during 1993-2006. The theoretical and…

  11. Are Modal Auxiliaries in Malaysian English Language Textbooks in Line with Their Usage in Real Language?

    ERIC Educational Resources Information Center

    Khojasteh, Laleh; Kafipour, Reza

    2012-01-01

    Based on the discrepancies found in many Malaysian English language textbooks, a detailed analysis on the way modal auxiliary verb forms and their semantic functions were introduced and presented in texts and exercises in five Malaysian textbooks was done. For that to be achieved, a qualitative page-by-page content analysis was applied. From the…

  12. Optimisation for subcritical fluid extraction of 17-methyltestosterone with 1,1,1,2-tetrafluoroethane for HPLC analysis.

    PubMed

    Han, Yuqian; Ma, Qinchuan; Lu, Jie; Xue, Yong; Xue, Changhu

    2012-12-15

    A simple, rapid and sensitive method was developed for determination of 17α-methyltestosterone in aquatic products by extraction with subcritical 1,1,1,2-tetrafluoroethane (R134a) extraction and high performance liquid chromatography (HPLC). Response surface methodology (RSM) was adopted to optimise extraction pressure, temperature and co-solvent volume. The optimum extraction conditions predicted within the experimental ranges were as follows: pressure 5 MPa, temperature 31°C, and co-solvent volume 3.35ml. The analysis was carried out on XDB-C(18) column (4.6 mm × 250 mm, 5 μm) with the mobile phase acetonitrile-water (55:45, v/v), flow rate 0.8 ml/min, temperature 30°C and wavelength 245 nm. Good linearity of detection was obtained for 17α-methyltestosterone between concentrations of 50-250 ng/ml, r(2)=0.999. The method was validated using samples fortified with 17α-methyltestosterone at levels of 10, 30 and 50 ng/g, the mean recovery exceeds 90%, and the RSD values were less than 10%. PMID:22980901

  13. Photo-Wolff Rearrangement of 2-Diazo-1,2-naphthoquinone: Stern-Volmer Analysis of the Stepwise Reaction Pathway.

    PubMed

    Ladinig, Manfred; Ramseier, Markus; Wirz, Jakob

    2015-01-01

    2-Diazo-1,2-naphthoquinone (1) and its derivatives are the photoactive components in Novolak photoresists. A femtosecond infrared study has established that the photoreaction of 1 proceeds largely by a concerted Wolff rearrangement yielding the ketene 1H-inden-1-ylidene-methanone (3) within 300 fs after excitation, but earlier trapping studies gave evidence for a minor reaction path via a carbene intermediate 1-oxo-2(1H)-naphthalenylidene (2) with a lifetime of about 10 ps. Here, we provide a quantitative assessment of the stepwise pathway by Stern-Volmer analysis of the trapping of 2 by methanol to yield 2-methoxy-1-naphthol (4). We conclude that the lifetime of the carbene 2 is at least 200 ps. Moreover, [3 + 2]cycloaddition of 2 and acetonitrile yielding 2-methylnaphth[2,1-d]oxazole (5) was observed. A comparison of the yields of 5 formed upon photolysis and upon thermolysis of 1 in acetonitrile provides evidence that a substantial part of the hot nascent carbene 2 formed photolytically rearranges to the ketene 3 during its vibrational relaxation (hot ground-state reaction). PMID:25196741

  14. Health effects of digital textbooks on school-age children: a grounded theory approach.

    PubMed

    Seomun, Gyeongae; Lee, Jung-Ah; Kim, Eun-Young; Im, Meeyoung; Kim, Miran; Park, Sun-A; Lee, Youngjin

    2013-10-01

    This qualitative study used the grounded theory approach to analyze digital textbook-related health experiences of school-age children. In-depth interviews were held with 40 elementary school students who had used digital textbooks for at least a year. Data analysis revealed a total of 56 concepts, 20 subcategories, and 11 categories related to digital textbook health issues, the central phenomena being "health-related experiences." Students' health-related experiences were classified into "physical" and "psychological" symptoms. Adverse health effects related to digital textbook usage were addressed via both "student-led" and "instructor-led" coping strategies. Students' coping strategies were often inefficient, but instructor-led strategies seemed to prevent health problems. When health issues were well managed, students tended to accept digital textbooks as educational tools. Our findings suggest that students can form healthy computer habits if digital textbook usage is directed in a positive manner. PMID:23780942

  15. Mathematical textbook of deformable neuroanatomies.

    PubMed Central

    Miller, M I; Christensen, G E; Amit, Y; Grenander, U

    1993-01-01

    Mathematical techniques are presented for the transformation of digital anatomical textbooks from the ideal to the individual, allowing for the representation of the variabilities manifest in normal human anatomies. The ideal textbook is constructed on a fixed coordinate system to contain all of the information currently available about the physical properties of neuroanatomies. This information is obtained via sensor probes such as magnetic resonance, as well as computed axial and emission tomography, along with symbolic information such as white- and gray-matter tracts, nuclei, etc. Human variability associated with individuals is accommodated by defining probabilistic transformations on the textbook coordinate system, the transformations forming mathematical translation groups of high dimension. The ideal is applied to the individual patient by finding the transformation which is consistent with physical properties of deformable elastic solids and which brings the coordinate system of the textbook to that of the patient. Registration, segmentation, and fusion all result automatically because the textbook carries symbolic values as well as multisensor features. Images Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 PMID:8265653

  16. Mathematical textbook of deformable neuroanatomies.

    PubMed

    Miller, M I; Christensen, G E; Amit, Y; Grenander, U

    1993-12-15

    Mathematical techniques are presented for the transformation of digital anatomical textbooks from the ideal to the individual, allowing for the representation of the variabilities manifest in normal human anatomies. The ideal textbook is constructed on a fixed coordinate system to contain all of the information currently available about the physical properties of neuroanatomies. This information is obtained via sensor probes such as magnetic resonance, as well as computed axial and emission tomography, along with symbolic information such as white- and gray-matter tracts, nuclei, etc. Human variability associated with individuals is accommodated by defining probabilistic transformations on the textbook coordinate system, the transformations forming mathematical translation groups of high dimension. The ideal is applied to the individual patient by finding the transformation which is consistent with physical properties of deformable elastic solids and which brings the coordinate system of the textbook to that of the patient. Registration, segmentation, and fusion all result automatically because the textbook carries symbolic values as well as multisensor features. PMID:8265653

  17. Queering high school biology textbooks

    NASA Astrophysics Data System (ADS)

    Snyder, Vicky L.; Broadway, Francis S.

    2004-08-01

    As teachers committed to educating all students, we need to learn more about how instructional materials shape representations of sexuality and gender. Through its insistent deconstruction of the norms that structure practice and belief, queer theory offers perspectives from which science educators can question assumptions embedded in textbooks. This article applies queer theory to analyze eight biology textbooks used in the United States. Specifically, we ask how biology textbooks address sexuality outside the heterosexual norm and if they propagate heteronormative attitudes. The textbooks examined offer deafening silences, antiseptic factoids, socially sanitized concepts, and politically correct binary-gendered illustrations. In these textbooks, the term homosexuality was used only in the context of AIDS where, along with iv drug users, they were identified as an affected group. The pervasive acceptance of heteronormative behavior privileges students that fit the heterosexual norm, and oppresses through omission and silence those who do not. We offer implications for practice to help science educators broaden their perspectives on the constructs of sexuality and gender to construct new ways of knowing and understanding differences in science classrooms and the natural world.

  18. Crystallization and Preliminary X-ray Diffraction Analysis of Recombinant Chlorocatechol 1 2-dioxygenase from Pseudomonas Putida

    SciTech Connect

    J Rustiguel; M Pinheiro; A Araujo; M Nonato

    2011-12-31

    Chlorocatechol 1,2-dioxygenase from the Gram-negative bacterium Pseudomonas putida (Pp 1,2-CCD) is considered to be an important biotechnological tool owing to its ability to process a broad spectrum of organic pollutants. In the current work, the crystallization, crystallographic characterization and phasing of the recombinant Pp 1,2-CCD enzyme are described. Reddish-brown crystals were obtained in the presence of polyethylene glycol and magnesium acetate by utilizing the vapor-diffusion technique in sitting drops. Crystal dehydration was the key step in obtaining data sets, which were collected on the D03B-MX2 beamline at the CNPEM/MCT - LNLS using a MAR CCD detector. Pp 1,2-CCD crystals belonged to space group P6{sub 1}22 and the crystallographic structure of Pp 1,2-CCD has been solved by the MR-SAD technique using Fe atoms as scattering centres and the coordinates of 3-chlorocatechol 1,2-dioxygenase from Rhodococcus opacus (PDB entry 2boy) as the search model. The initial model, which contains three molecules in the asymmetric unit, has been refined to 3.4 {angstrom} resolution.

  19. Textbook Errors & Misconceptions in Biology: Photosynthesis.

    ERIC Educational Resources Information Center

    Storey, Richard D.

    1989-01-01

    Glaring and basic textbook errors and misconceptions about photosynthesis are discussed. The Calvin Cycle, photosynthetic products, alternative cycles, and plants as producers are considered. Included are observations of both college and secondary textbooks. (CW)

  20. Women in Astronomy: Inclusion in Introductory Textbooks.

    ERIC Educational Resources Information Center

    Larsen, Kristine M.

    1995-01-01

    Discusses the reasons for identifying the contributions of women astronomers in introductory textbooks. The evolution of inclusion over the past 4 decades is explored by examining the rates of inclusion of 10 women astronomers in textbooks. Contains 100 references. (DDR)

  1. History Textbooks at the New Century: A Report of the American Textbook Council.

    ERIC Educational Resources Information Center

    Sewall, Gilbert T.

    The American Textbook Council identified the nation's leading social studies textbooks based on estimated volume of sales and on adoptions in California, Indiana, North Carolina, Florida, and New York. Three multi-volume elementary-level programs and about a dozen secondary-level history textbooks command the market. The history textbooks at the…

  2. Conceptual Incoherence as a Result of the use of Multiple Historical Models in School Textbooks

    NASA Astrophysics Data System (ADS)

    Gericke, Niklas M.; Hagberg, Mariana

    2010-08-01

    This paper explores the occurrence of conceptual incoherence in upper secondary school textbooks resulting from the use of multiple historical models. Swedish biology and chemistry textbooks, as well as a selection of books from English speaking countries, were examined. The purpose of the study was to identify which models are used to represent the phenomenon of gene function in textbooks and to investigate how these models relate to historical scientific models and subject matter contexts. Models constructed for specific use in textbooks were identified using concept mapping. The data were further analyzed by content analysis. The study shows that several different historical models are used in parallel in textbooks to describe gene function. Certain historical models were used more often then others and the most recent scientific views were rarely referred to in the textbooks. Hybrid models were used frequently, i.e. most of the models in the textbooks consisted of a number of components of several historical models. Since the various historical models were developed as part of different scientific frameworks, hybrid models exhibit conceptual incoherence, which may be a source of confusion for students. Furthermore, the use of different historical models was linked to particular subject contexts in the textbooks studied. The results from Swedish and international textbooks were similar, indicating the general applicability of our conclusions.

  3. E-Books or Textbooks: Students Prefer Textbooks

    ERIC Educational Resources Information Center

    Woody, William Douglas; Daniel, David B.; Baker, Crystal A.

    2010-01-01

    Previous research has demonstrated that the experience of reading e-books is not equivalent to reading textbooks. This study examines factors influencing preference for e-books as well as reported use of e-book content. Although the present student cohort is the most technologically savvy to ever enter universities, students do not prefer e-books…

  4. A Textbook Argument: Definitions of Argument in Leading Composition Textbooks

    ERIC Educational Resources Information Center

    Knoblauch, A. Abby

    2011-01-01

    This essay examines the definitions and practices of argument perpetuated by popular composition textbooks, illustrating how even those texts that appear to forward expansive notions of argument ultimately limit it to an intent to persuade. In doing so, they help perpetuate constricted practices of argument within undergraduate composition…

  5. Misconception and miseducation: Presentations of radical behaviorism in psychology textbooks.

    PubMed

    Todd, J T; Morris, E K

    1983-01-01

    Behavior analysts have recently expressed concern about what appear to be misrepresentations of behaviorism in psychology textbooks. This paper presents an analysis of currently used textbooks in the areas of introductory, social, cognitive, personality, and developmental psychology that confirms this. Topics on which behavior analysis is most often misrepresented relate to the role of animal learning research, environmentalism, the "empty organism," language, and the overall utility of the approach. Because textbooks are often a major medium of interaction between the public and behaviorism, behavior analysts must work to correct these errors and to prevent possible negative consequences of widespread misunderstanding. Several potential solutions to these problems are presented that take into account current publishing practices and the monetary contingencies which support them. PMID:22478585

  6. The Treatment of Asian Americans in U.S. History Textbooks Published 1994-1996.

    ERIC Educational Resources Information Center

    Harada, Violet H.

    This study analyzes the treatment of Asian Americans in a group of selected high school U.S. history textbooks published between 1994 and 1996. Using a content analysis technique, nine of the textbooks most widely used in Hawaii were evaluated in terms of Asian groups represented, events and personalities identified, and multicultural concepts…

  7. Investigating Grade Nine Textbook Problems for Characteristics Related to Mathematical Literacy

    ERIC Educational Resources Information Center

    Gatabi, Abolfazl Rafiepour; Stacey, Kaye; Gooya, Zahra

    2012-01-01

    This study presents a content analysis of the new Iranian Grade 9 mathematics textbook and two Australian Year 9 mathematics textbooks, examining the extent to which the problems show characteristics associated in the literature with promoting mathematical literacy. The new Iranian book was produced to meet a range of needs including several well…

  8. Evaluation of an ESP Medical Textbook: Instructors and Learners' Perceptions in Focus

    ERIC Educational Resources Information Center

    Salehi, Hadi; Khadivar, Zahra; Mehrabi, Mahmood

    2015-01-01

    Evaluation is basically a matching process, which concerns matching learners' needs to available solutions. Through analysis and assessment of ESP textbooks, a much more promising and desirable approach to a theory of ESP takes place. To this aim, the purpose of the present study was to evaluate the ESP medical textbook. To gather the necessary…

  9. Human Sexuality Textbooks: A Critical Look at the Visual Presentation of Sexually Explicit Material.

    ERIC Educational Resources Information Center

    Hartlaub, Mark G.; Dreznick, Michael T.

    2001-01-01

    Presents results from a content analysis of 12 human sexuality textbooks published between 1989 and 1996 to determine the relationship between the content and presentation of the material in the texts. States that the textbooks demonstrate a preference for how sexual material is visually presented. (CMK)

  10. The Holocaust as Reflected in Communist and Post-Communist Romanian Textbooks

    ERIC Educational Resources Information Center

    Barbulescu, Ana; Degeratu, Laura; Gusu, Cosmina

    2013-01-01

    Romanian history textbooks were mostly silent about the Holocaust during the Communist era. The authors reconstructed the different models of remembering the Holocaust that are present in post-Communist Romanian textbooks. The analysis revealed the existence of six different models of recollecting this history. The six models of representing the…

  11. How Clearly Written are Children's Textbooks? or, of Bladderworts and Alfa. Reading Education Report No. 16.

    ERIC Educational Resources Information Center

    Anderson, Thomas H.; And Others

    Two representative samples of expository prose from sixth grade textbooks (one in science and one in social studies) were analyzed for clarity of explanation. Four text criteria were applied to the analyses: structure, unity, coherence, and audience appropriateness. The results of the analysis suggested that many children's textbooks are not…

  12. Looking for Work: The Coverage of Work in Canadian Introductory Sociology Textbooks

    ERIC Educational Resources Information Center

    Dixon, Shane Michael; Quirke, Linda

    2014-01-01

    This paper examines the textual coverage of the topic of work in Canadian English--language introductory sociology textbooks. Our findings are based on a content analysis of 21 Canadian texts published between 2008 and 2012. We found that only 12 of 21 textbooks included a chapter on work, suggesting that work occupies a peripheral position in…

  13. Lexical Priming Effects of Textbooks on EFL Learners' Use of "Give"

    ERIC Educational Resources Information Center

    Xu, Qi

    2015-01-01

    The study aims to investigate to what extent Chinese EFL learners' language use is influenced by English textbooks. Such influence may suggest the existence of lexical priming effects. Based on detailed and systematic analysis of a learner English corpus, in comparison with a textbook corpus, the present study revealed striking similarities of the…

  14. Exploring the Multimodality of EFL Textbooks for Chinese College Students: A Comparative Study

    ERIC Educational Resources Information Center

    Liu, Xiqin; Qu, Dianning

    2014-01-01

    To explore the multimodality of two representative EFL textbook series for Chinese college students, their visual and verbal semiotic modes were compared. The target textbooks are "Experiencing English" and "New Century College English". Through multimodal discourse analysis, the study aims to shed some light on how to develop…

  15. Supports for Vocabulary Instruction in Early Language and Literacy Methods Textbooks

    ERIC Educational Resources Information Center

    Wright, Tanya S.; Peltier, Marliese R.

    2016-01-01

    The goal of this study was to examine the extent to which the content and recommendations in recently published early language and literacy methods textbooks may support early childhood teachers in learning to provide vocabulary instruction for young children. We completed a content analysis of 9 textbooks with coding at the sentence level.…

  16. Examining the Differences of Linear Systems between Finnish and Taiwanese Textbooks

    ERIC Educational Resources Information Center

    Yang, Der-Ching; Lin, Yung-Chi

    2015-01-01

    The purpose of this study was to examine the differences between Finnish and Taiwanese textbooks for grades 7 to 9 on the topic of solving systems of linear equations (simultaneous equations). The specific textbooks examined were TK in Taiwan and FL in Finland. The content analysis method was used to examine (a) the teaching sequence, (b)…

  17. Still Red and in War or Just Poor? European Transformation Societies in Geography Textbooks

    ERIC Educational Resources Information Center

    Bagoly-Simo, Peter

    2013-01-01

    Textbooks are an important tool for teaching and learning in high school geography classrooms. But what sort of picture do they provide of places that are different and distant from the countries in which they are published? This study explores this question through a concise analysis of a widely used American world geography textbook, with a…

  18. Fostering the Common Good: The Portrayal of the Social Economy in Secondary Business and Economics Textbooks

    ERIC Educational Resources Information Center

    Myers, John P.; Stocks, Jessica L.

    2010-01-01

    In this research study, we undertook a content analysis of thirteen economics and business textbooks, which were examined for their coverage of the social economy, which encompasses a range of nonprofit and social enterprise organizations that put "people before profits." The goal was to understand the ways that these textbooks represent official…

  19. Excluding Ethical Issues from U.S. History Textbooks: 911 and the War on Terror

    ERIC Educational Resources Information Center

    Romanowski, Michael H.

    2009-01-01

    This research study examined nine secondary American history textbooks regarding their treatment of 9/11 and related events. The analysis centered on both the knowledge included and excluded from the discussion in each book. Particular attention was given to the moral and ethical issues relevant to 9/11. Findings show that textbooks vary in their…

  20. Functions in Contemporary Secondary Mathematics Textbook Series in the United States

    ERIC Educational Resources Information Center

    Ross, Daniel J.

    2011-01-01

    Textbooks play a central role in US mathematics classrooms (Stein, Remillard, & Smith, 2007) and functions are a key topic in secondary mathematics (Carlson, Jacobs, Coe, Larsen, & Hsu, 2002). This study presents results from an analysis of this essential topic in the latest editions of three textbook series: the Glencoe Mathematics…

  1. The International Status of English for Intercultural Understanding in Taiwan's High School EFL Textbooks

    ERIC Educational Resources Information Center

    Su, Ya-Chen

    2016-01-01

    The purpose of this study is to evaluate linguistic and cultural issues around the status of English as a lingua franca and intercultural understanding as presented in one set of Taiwan's (English as a Foreign Language (EFL) high school textbooks. The methodology centres on the analysis of textbook content as categorized in three central themes:…

  2. Examination of Mathematics Textbooks in Use in Hungarian Primary Schools in Romania

    ERIC Educational Resources Information Center

    Tünde, Baranyai; Gabriella, Stark

    2011-01-01

    A good textbook must meet a number of pedagogical, psychological, scientific, esthetical, and other requirements. The presented research examines whether the mathematics textbooks in use in Hungarian primary schools in Romania meet those requirements. We used documentation, contents analysis and surveys as research methods. We examined the…

  3. Multiple-Choice Test Items: What Are Textbook Authors Telling Teachers?

    ERIC Educational Resources Information Center

    Ellsworth, Randy A.

    1990-01-01

    Analysis of educational psychology textbooks identified textbook authors' guidelines for teachers to follow when writing multiple-choice test items. Selected guidelines were used to evaluate multiple-choice items (N=1,080) from 18 college instructor guides to educational psychology texts. Results indicated that approximately 60 percent of the…

  4. Science Textbooks in the Context of Political Reform in South Africa: Implications for Access to Science

    ERIC Educational Resources Information Center

    Green, Whitfield; Naidoo, Devika

    2008-01-01

    The post-apartheid National Physical Science Curriculum was implemented for the first time in South Africa in grade 10 during 2006. A variety of new textbooks for grade 10 have been published. This study was a comparative analysis of three popular textbooks, one prepared to support the previous curriculum, and two prepared for the new curriculum.…

  5. Is What We Have, What We Want?: A Critical Review of Selected Basic Course Textbooks.

    ERIC Educational Resources Information Center

    Berens, Eileen; Nance, Teresa A.

    A two-stage study was designed to offer a comprehensive analysis of current basic public speaking textbooks. The first stage involved a comprehensive classification, enumeration, and comparison of the substance of six textbooks identified by publishers as leading competitors on the public speaking market. Results from the first stage formed the…

  6. "Keeping Things Straight": The Representation of Sexualities in Life Orientation Textbooks

    ERIC Educational Resources Information Center

    Wilmot, Mark; Naidoo, Devika

    2014-01-01

    Heterosexism and heteronormativity are pervasive in the South African society, but to what degree are they present in Life Orientation (LO) textbooks? This question, explored through a content analysis of widely used Grade 10 LO textbooks, was framed by queer theory. The paper quantitatively examines the coverage of sexualities, and qualitatively…

  7. High School Journalism Textbooks, 1980-1985: An Overview of Content.

    ERIC Educational Resources Information Center

    Hines, Barbara; Nunamaker, Anne

    To determine how high school journalism textbooks published from 1980 to 1985 deal with mass media and to what extent they deal with journalistic skills versus historical and theoretical content, a content analysis was made of nine comprehensive textbooks published during that period. Specific content areas that were analyzed in the historical and…

  8. Aging in Community Nutrition, Diet Therapy, and Nutrition and Aging Textbooks

    ERIC Educational Resources Information Center

    O'Neill, Peggy Schafer; Wellman, Nancy S.; Himburg, Susan P.; Johnson, Paulette; Elfenbein, Pamela

    2005-01-01

    Using content analysis, this study evaluated the aging content and context in 11 nutrition sub-specialty textbooks: community nutrition (n = 3), diet therapy (n = 4), and nutrition and aging (n = 4). Pages with paragraphs on aging were identified in community nutrition and diet therapy textbooks, and 10% random samples of pages were evaluated in…

  9. Isolating Knowledge of the Unpleasant: The Rape of Nanking in Japanese High-School Textbooks.

    ERIC Educational Resources Information Center

    Barnard, Christopher

    2001-01-01

    Investigates how the Rape of Nanking is reported in 88 Japanese high school history textbooks authorized by the Japanese Ministry of Education. Analysis of language used in the textbooks reveals that a consistent language pattern isolates knowledge of the Rape of Nanking from Japan and the Japanese. (Author/PAL)

  10. Awareness of Racial and Ethnic Diversity in Japanese Junior High Schools' English Language Textbooks

    ERIC Educational Resources Information Center

    Yamada, Mieko

    2011-01-01

    This article explores how cultural attitudes about race and ethnicity are taught in the English language textbooks as a part of Japan's school curriculum. A content analysis of Japanese junior high school textbooks on English as a foreign language published from 1987 to 2002 was conducted. Four hypotheses were investigated relating to 1) the…

  11. The Object Formerly Known as the Textbook

    ERIC Educational Resources Information Center

    Young, Jeffrey R.

    2013-01-01

    Textbook publishers argue that their newest digital products should not even be called "textbooks." They are really software programs built to deliver a mix of text, videos, and homework assignments. But delivering them is just the beginning. No old-school textbook was able to be customized for each student in the classroom. The books never graded…

  12. The Evolution of International Business Textbooks

    ERIC Educational Resources Information Center

    Sagafi-nejad, Tagi; Limaye, Aditya

    2014-01-01

    As a field of study, international business (IB) has evolved with accelerated tempo in the last four decades. The subject has brought with it an increasing plethora of textbooks. We analyze the contents of major textbooks, both classic and new, to find the extent to which these textbooks cover the various components of the common body of knowledge…

  13. Reflections on the Study of Textbooks

    ERIC Educational Resources Information Center

    Issitt, John

    2004-01-01

    It would be a mistake to underestimate the challenge of any attempt to elevate the current status of textbook research. The negativity surrounding textbooks in terms of use and status as both literary objects and vehicles for pedagogy is profound. There is a very deep-seated "anti-textbook ethos" witnessed throughout the education business. This…

  14. A Framework for Open Textbooks Analytics System

    ERIC Educational Resources Information Center

    Prasad, Deepak; Totaram, Rajneel; Usagawa, Tsuyoshi

    2016-01-01

    In the last few years, open textbook development has picked up dramatically due both to the expense of commercially published textbooks and the increasing availability of high-quality OER alternatives. While this offers a tremendous benefit in terms of lowering student textbook costs, the question remains, to what extent (if any) do open textbooks…

  15. A Study of Four Textbook Distribution Models

    ERIC Educational Resources Information Center

    Graydon, Benjamin; Urbach-Buholz, Blake; Kohen, Cheryl

    2011-01-01

    Textbooks too often hinder rather than help students because of their prohibitively expensive prices. Colleges and universities facing intense pressure to lower education expenses while increasing access, retention, and achievement now find addressing the textbook problem more and more urgent. Used textbook sales have grown dramatically over the…

  16. Multiculturalism in Secondary School Physical Education Textbooks

    ERIC Educational Resources Information Center

    Hsu, Shan-Hui; Chepyator-Thomson, Rose

    2010-01-01

    The purpose of the study focused on how textbook authors in secondary school physical education used multicultural education concepts, using Banks' (2006a) dimensions and Sleeter and Grant's (1999) approaches. Data collection methods included examination of textbooks' chapters, indexes, and references in five textbooks. Constant comparison method…

  17. Psychology Ethics in Introductory Psychology Textbooks

    ERIC Educational Resources Information Center

    Zucchero, Renee' A.

    2011-01-01

    Previous research revealed that introductory psychology textbooks included limited information about psychology ethics. This study reviewed 48 current introductory psychology textbooks for research and other APA ethics content. These textbooks included slightly more total ethics content and were more thorough in their review of research ethics…

  18. An Inclusive Process for Departmental Textbook Selection

    ERIC Educational Resources Information Center

    Altman, William S.; Ericksen, Kristen; Pena-Shaff, Judith B.

    2006-01-01

    This article reports on the development and use of an inclusive process to select a departmental textbook for general psychology. It describes a method for developing department-specific instruments to narrow the available textbook choices and an in-class textbook trial used in the final selection. Reported advantages of this method include…

  19. Geometric Transformations in Middle School Mathematics Textbooks

    ERIC Educational Resources Information Center

    Zorin, Barbara

    2011-01-01

    This study analyzed treatment of geometric transformations in presently available middle grades (6, 7, 8) student mathematics textbooks. Fourteen textbooks from four widely used textbook series were evaluated: two mainline publisher series, Pearson (Prentice Hall) and Glencoe (Math Connects); one National Science Foundation (NSF) funded curriculum…

  20. New observation and combined analysis of the Cs{sub 2} 0{sub g}{sup −}, 0{sub u}{sup +}, and 1{sub g} states at the asymptotes 6S{sub 1/2} + 6P{sub 1/2} and 6S{sub 1/2} + 6P{sub 3/2}

    SciTech Connect

    Ma, Jie; Liu, Wenliang; Wu, Jizhou; Jia, Suotang; Yang, Jinxin; Dai, Xingcan; Sun, Weiguo; Ivanov, Valery S.; Skublov, Alexei S.; Sovkov, Vladimir B.

    2014-12-28

    We report on new observations of the photoassociation spectroscopy of ultracold cesium molecules using a highly sensitive detection technique and a combined analysis with all observed electronic states. The technique is achieved by directly modulating the frequency of the trapping lasers of a magneto-optical trap. New observations of the Cs{sub 2}0{sub g}{sup −}, 0{sub u}{sup +}, and 1{sub g} states at the asymptotes 6S{sub 1/2} + 6P{sub 1/2} and 6S{sub 1/2} + 6P{sub 3/2} are reported. The spectral range is extended to the red detuning of 112 cm{sup −1} below the 6S{sub 1/2} + 6P{sub 3/2} dissociation limit. Dozens of vibrational levels of the ultracold Cs{sub 2}0{sub g}{sup −}, 0{sub u}{sup +}, and 1{sub g} states are observed for the first time. The available experimental binding energies of these states are analyzed simultaneously in a framework of the generalized LeRoy–Bernstein theory and the almost degenerate perturbation theory by Marinescu and Dalgarno [Phys. Rev. A: At., Mol., Opt. Phys. 52, 311 (1995)]. The unique atomic-related parameter c{sub 3} governing the dispersion forces of all the molecular states is estimated as (10.29 ± 0.05) a.u.

  1. Moroccan Arabic Textbook. Student Edition.

    ERIC Educational Resources Information Center

    Peace Corps, Rabat (Morocco).

    The textbook is designed for Peace Corps volunteers learning the variety of Arabic mostly widely spoken in Morocco. It contains 10 lessons, each consisting of a dialogue, vocabulary list, grammar notes, a popular proverb, and supplementary dialogue and/or idiomatic and socially correct expressions. Dialogue topics include introductions and…

  2. Queering High School Biology Textbooks

    ERIC Educational Resources Information Center

    Snyder, Vicky L.; Broadway, Francis S.

    2004-01-01

    As teachers committed to educating all students, we need to learn more about how instructional materials shape representations of sexuality and gender. Through its insistent deconstruction of the norms that structure practice and belief, queer theory offers perspectives from which science educators can question assumptions embedded in textbooks.…

  3. Banal Nationalism in ESL Textbooks

    ERIC Educational Resources Information Center

    Gulliver, Trevor

    2011-01-01

    Despite repeating claims that Canadians are less nationalistic than members of other nations, English as a second language (ESL) textbooks often participate in banal repetitions of nation-ness and nationalism. This banal nationalism takes the form of the marking of nation through flags, maps, routine deixis, and nationalized symbols. This study…

  4. Muslim Textbooks Seen as Intolerant

    ERIC Educational Resources Information Center

    Manzo, Kathleen Kennedy

    2004-01-01

    A number of Muslim countries have stepped up plans for revising school textbooks as part of the continuing U.S. driven campaign to combat terrorism. Critics maintain that the efforts are superficial and that the books continue to portray dangerous stereotypes and promote extremist views. Some books for religious and social sciences classes in use…

  5. History's Purpose in Antebellum Textbooks

    ERIC Educational Resources Information Center

    McInnis, Edward Cromwell

    2012-01-01

    Many scholars have argued that history education during the antebellum period in the United States supported conservative values and sought to produce close-minded citizens. History textbooks of that era, they frequently posit, cast Americans as God's chosen people and present the past in a style that reaffirms established social conventions. Ruth…

  6. Rent Seeking: A Textbook Example

    ERIC Educational Resources Information Center

    Pecorino, Paul

    2007-01-01

    The author argues that the college textbook market provides a clear example of monopoly seeking as described by Tullock (1967, 1980). This behavior is also known as rent seeking. Because this market is important to students, this example of rent seeking will be of particular interest to them. (Contains 24 notes.)

  7. Psychology Textbooks: Examining Their Accuracy

    ERIC Educational Resources Information Center

    Steuer, Faye B.; Ham, K. Whitfield, II

    2008-01-01

    Sales figures and recollections of psychologists indicate textbooks play a central role in psychology students' education, yet instructors typically must select texts under time pressure and with incomplete information. Although selection aids are available, none adequately address the accuracy of texts. We describe a technique for sampling…

  8. Alaska Native Land Claims. [Textbook].

    ERIC Educational Resources Information Center

    Arnold, Robert D.; And Others

    Written for students at the secondary level, this textbook on Alaska Native land claims includes nine chapters, eight appendices, photographs, maps, graphs, bibliography, and an index. Chapters are titled as follows: (1) Earliest Times (Alaska's first settlers, eighteenth century territories, and other claimants); (2) American Indians and Their…

  9. World-Wide Intelligent Textbooks

    ERIC Educational Resources Information Center

    Schwarz, Elmar; Brusilovsky, Peter; Weber, Gerhard

    2005-01-01

    New WWW technologies allow for integrating distance education power of WWW with interactivity and intelligence. Integrating on-line presentation of learning materials with the interactivity of problem solving environments and the intelligence of intelligent tutoring systems results in a new quality of learning materials that we call I3-textbooks.…

  10. Modern Iraqi Arabic: A Textbook.

    ERIC Educational Resources Information Center

    Alkalesi, Yasin M.

    This book is an introductory textbook for those with no previous knowledge of Arabic or for those who know Arabic but want to learn the Iraqi dialect. The book is divided into 16 lessons: "Arabic Alphabet and Vowels"; "Greetings and Courtesy Expressions"; "Asking for Directions"; "Arrival at Baghdad Airport, Part I"; "Arrival at Baghdad Airport,…

  11. USA/USSR Textbook Distortions.

    ERIC Educational Resources Information Center

    Parker, Franklin

    This review of a 1981 interim report on the United States' and the Soviet Union's distortion of events in history and geography textbooks is intended to encourage educators in both countries to depict the other side more honestly, less aggressively, and more appreciative of each other's virtues and flaws. Organized into two major sections,…

  12. Populism in High School Textbooks

    ERIC Educational Resources Information Center

    Peiser, Andrew C.

    1973-01-01

    The purpose of this study was to determine whether one area of United States history--Populism and Populists--is accurately presented in nine widely used current American history high school textbooks. Another objective was to devise a system that could be used to make such a determination for any history text. (Author)

  13. Some Thoughts on Free Textbooks

    ERIC Educational Resources Information Center

    Stewart, Robert

    2009-01-01

    The author publishes and freely distributes three online textbooks. "Introduction to Physical Oceanography" is available as a typeset book in Portable Document Format (PDF) or as web pages. "Our Ocean Planet: Oceanography in the 21st Century" and "Environmental Science in the 21st Century" are both available as web pages. All three books, which…

  14. Revisiting "The fertilization fairytale:" an analysis of gendered language used to describe fertilization in science textbooks from middle school to medical school

    NASA Astrophysics Data System (ADS)

    Campo-Engelstein, Lisa; Johnson, Nadia L.

    2014-03-01

    Emily Martin's (Signs J Women Cult Soc 16(31):485-501, 1991) article, "The Egg and the Sperm: How Science Has Constructed a Romance Based on Stereotypical Male-Female Roles," was published in Signs over 20 years ago. In this groundbreaking article, she discusses how gender roles are often projected onto reproductive biology, leading to the portrayal of eggs as passive and sperm as active. We were interested in seeing if many of her findings are still relevant today. We analyzed science textbooks from the middle school to the medical school level to determine if fertilization in human reproduction is described in gender-biased language regarding the sentence structure, amount of information provided for female and male processes/parts, and neutrality in describing female and male processes/parts. Although there has been much improvement, there is still a long way to go. Sexist language in scientific textbooks is troubling because it negatively affects both female and male students and undermines teachers' ability to teach in an accurate and gender-neutral way.

  15. From EFL to English as an International and Scientific Language: Analysing Taiwan's High-School English Textbooks in the Period 1952-2009

    ERIC Educational Resources Information Center

    Ke, I-Chung

    2012-01-01

    Using both quantitative and qualitative content analysis of Taiwan's high-school English textbooks, this study aimed to investigate the projected roles of English in Taiwan's high-school English textbooks over the past 50 years. A total of 1072 lessons from 14 textbook versions dating from 1952 to 2009 were analysed. The results show that the…

  16. Analysis of the {1/2}^{± } pentaquark states in the diquark-diquark-antiquark model with QCD sum rules

    NASA Astrophysics Data System (ADS)

    Wang, Zhi-Gang

    2016-03-01

    In this article, we construct both the axialvector-diquark-axialvector-diquark-antiquark type and the axialvector-diquark-scalar-diquark-antiquark type interpolating currents, then calculate the contributions of the vacuum condensates up to dimension 10 in the operator product expansion, and we study the masses and pole residues of the J^P={1/2}^± hidden-charm pentaquark states with the QCD sum rules in a systematic way. In calculations, we use the formula μ =sqrt{M^2P-(2{{M}}_c)^2} to determine the energy scales of the QCD spectral densities. We take into account the SU(3) breaking effects of the light quarks, and we obtain the masses of the hidden-charm pentaquark states with the strangeness S=0,-1,-2,-3, which can be confronted with the experimental data in the future.

  17. Electronic vs. traditional textbook use: dental students' perceptions and study habits.

    PubMed

    Ditmyer, Marcia M; Dye, Jared; Guirguis, Nadim; Jamison, Kyle; Moody, Michael; Mobley, Connie C; Davenport, William D

    2012-06-01

    This descriptive study assessed dental students' attitudes about computer use as it relates to study habits and use of e-textbook technology. Academic deans and student leaders at all accredited dental education programs in the United States, Puerto Rico, and Canada were asked to forward an e-mail to students explaining the purpose of the study and asking them to participate. The e-mail included an embedded URL link to the survey. A total of 703 complete responses from twenty-four dental schools were received and used in the final analysis. Because the number of students contacted could not be determined, the overall response rate cannot be calculated. Over 65 percent of the respondents reported spending >11 hours per week studying although over 75 percent said they spent little time studying from their textbooks. Over 55 percent were from schools that use e-textbooks exclusively, with 25 percent from schools that exclusively use print textbooks. One-fourth indicated they purchased a traditional printed textbook even when an e-textbook was provided; more than one-third printed information from the e-textbooks rather than reading on the computer. A majority (59 percent) preferred traditional textbook resources over e-textbooks, with over 50 percent reporting not using the required e-textbooks at all. E-textbooks were used by students in this study less frequently than materials/notes provided by dental school faculty. The majority preferred to use traditional resources as references and for augmenting lecture material. PMID:22659701

  18. How do the high school biology textbooks introduce the nature of science?

    NASA Astrophysics Data System (ADS)

    Lee, Young H.

    2007-05-01

    Although helping students to achieve an adequate understanding of the nature of science has been a consistent goal for science education for over half a century, current research reveals that the majority of students and teachers have naive views of the nature of science (Abd-El-khalick & Akerson, 2004; Bianchini & Colburn, 2000). This problem could be attributed not only to the complex nature of science, but also to the way the nature of science is presented to students during instruction. Thus, research must be conducted to examine how the science is taught, especially in science textbooks, which are a major instructional resource for teaching science. The aim of this study was to conduct a content analysis of the first chapter of four high school biology textbooks, which typically discusses "What is science?" and "What is biology?" This research used a content analysis technique to analyze the four high school biology textbooks, using a conceptual framework that has been used often for science textbook analysis. This conceptual framework consists of four themes of the nature of science: (a) science as a body of knowledge, (b) science as a way of thinking, (c) science as a way of investigating, and (d) the interaction of science, technology, and society. For this study, the four-theme-framework was modified to incorporate descriptors from national-level documents, such as Science for All Americans (AAAS, 1990) Benchmarks for Science Literacy (AAAS, 1993) and the National Science Education Standards (NRC, 1996), as well as science education research reports. A scoring procedure was used that resulted in good to excellent intercoder agreement with Cohen's kappa (k) ranging from .63 to .96. The findings show that the patterns of presentation of the four themes of the nature of science in the four high school biology textbooks are similar across the different locations of data, text, figures, and assessments. On the other hand, the pattern of presentation of the four

  19. An Evaluation of Grades 9 and 10 Mathematics Textbooks vis-a-vis Fostering Problem Solving Skills

    ERIC Educational Resources Information Center

    Buishaw, Alemayehu; Ayalew, Assaye

    2013-01-01

    This study sought to evaluate the adequacy of integration of problematic situations and general problem-solving strategies (heuristics) in grades 9 and 10 mathematics textbooks. Grade 9 and grade 10 mathematics textbooks were used for analysis. Document analysis and interview were used as data gathering instruments. Document analysis was carried…

  20. Neoliberal Ideology in Primary School Social Studies Textbooks in Turkey

    ERIC Educational Resources Information Center

    Akkaymak, Güliz

    2015-01-01

    This study examines the extent to which fourth and fifth grade primary school Social Studies textbooks published by the Ministry of National Education in Turkey between 1980 and 2009 represent neoliberal ideology. In an examination of changes following the restructuring of Turkish primary school education in 2004, this analysis compares pre- and…

  1. Democratic Citizenship in Textbooks in Spanish Primary Curriculum

    ERIC Educational Resources Information Center

    De La Caba Collado, Mariangeles; Lopez Atxurra, Rafael

    2006-01-01

    This paper analyses how textbooks deal with the issues of education for democratic citizenship encompassed within the European framework and Spanish educational reforms. The sample comprised the 24 individual texts in social science, natural science, and technology for 6-12-year-olds. This paper delimits and defines the six themes for analysis:…

  2. The Use of Decompositions in International Trade Textbooks.

    ERIC Educational Resources Information Center

    Highfill, Jannett K.; Weber, William V.

    1994-01-01

    Asserts that international trade, as compared with international finance or even international economics, is primarily an applied microeconomics field. Discusses decomposition analysis in relation to international trade and tariffs. Reports on an evaluation of the treatment of this topic in eight college-level economics textbooks. (CFR)

  3. Using Concept Maps to Analyze Textbook Presentations of Respiration.

    ERIC Educational Resources Information Center

    Soyibo, Kola

    1995-01-01

    Conducted a study that used concept maps to compare and evaluate how the principal concepts of respiration were elaborated in three high school biology textbooks specifically written for the English-speaking Caribbean nations. Discusses concept analysis, elaborations, and defects in the elaborations. (19 references) (JRH)

  4. Illustrations in Social Studies Textbooks, Grades One through Three

    ERIC Educational Resources Information Center

    Shrum, Ellen Olin

    2010-01-01

    This content analysis examined illustrations (n =3,357) in the core lessons of four top-selling publishers' social studies textbooks, grades one through three. The graphical (n =556) and pictorial (n =2801) displays were coded for typology, explanation (labels or captions), referential text connection, location of referential connection, function…

  5. Assessing the Potential of Mathematics Textbooks to Promote Deep Learning

    ERIC Educational Resources Information Center

    Shield, Malcolm; Dole, Shelley

    2013-01-01

    Curriculum documents for mathematics emphasise the importance of promoting depth of knowledge rather than shallow coverage of the curriculum. In this paper, we report on a study that explored the analysis of junior secondary mathematics textbooks to assess their potential to assist in teaching and learning aimed at building and applying deep…

  6. Representations of Scientists in Canadian High School and College Textbooks

    ERIC Educational Resources Information Center

    van Eijck, Michiel; Roth, Wolff-Michael

    2008-01-01

    This study investigated the representations of a select group of scientists (n = 10) in a sample of Canadian high school and college textbooks. Drawing on semiotic and cultural-historical activity theoretical frameworks, we conducted two analyses. A coarse-grained, quantitative analysis of the prevalence and structure of these representations…

  7. Students' Reasoning in Mathematics Textbook Task-Solving

    ERIC Educational Resources Information Center

    Sidenvall, Johan; Lithner, Johan; Jäder, Jonas

    2015-01-01

    This study reports on an analysis of students' textbook task-solving in Swedish upper secondary school. The relation between types of mathematical reasoning required, used, and the rate of correct task solutions were studied. Rote learning and superficial reasoning were common, and 80% of all attempted tasks were correctly solved using such…

  8. Notable American Women: The Case of United States History Textbooks.

    ERIC Educational Resources Information Center

    Tetreault, Mary Kay

    1984-01-01

    A content analysis of secondary U.S. history textbooks revealed that texts do include discussions of women. However, the emphasis is usually on female contributions that are an extension of women's nurturing role within the family or that are supportive of male activities. Eleanor Roosevelt is the most featured woman. (RM)

  9. Gender and Cultural Diversity Bias in Developmental Textbooks.

    ERIC Educational Resources Information Center

    Conti, Nancy E.; Kimmel, Ellen B.

    This paper reports the results of a content-analysis for the treatment of gender and diversity in the 11 top-selling lifespan developmental textbooks. The purposes were to measure the amount of information provided on aspects of development specific to Caucasian females and females of Color and to evaluate qualitatively the incorporation of the…

  10. Images of Nature in Greek Primary School Textbooks

    ERIC Educational Resources Information Center

    Korfiatis, Kostas J.; Stamou, Anastasia G.; Paraskevopoulos, Stephanos

    2004-01-01

    In this article, the environmental content of the textbooks used for the teaching of natural sciences in Greek primary schools was examined. Specifically, by employing the method of content analysis, both representational (metaphors, depictions, values, etc.) and cognitive ecological concepts) elements, building images of nature, and shaping our…

  11. Ethnocentrism, History Textbooks and Teaching Strategies: Presenting the USSR.

    ERIC Educational Resources Information Center

    Maw, Janet

    1991-01-01

    Examines ethnocentrism, focusing on the presentation of the USSR in English history textbooks. Four sections define ethnocentrism and the framework of analysis used, exemplify the framework, relate differences between the text and changes in the projected classroom context-of-use, and discuss theoretical and methodological problems raised by the…

  12. Examples in College Algebra Textbooks: Opportunities for Students' Learning

    ERIC Educational Resources Information Center

    Mesa, Vilma; Suh, Heejoo; Blake, Tyler; Whittemore, Timothy

    2012-01-01

    We present an analysis of several characteristics of examples in 10 college algebra textbooks used in community colleges or 4-year institutions. We analyzed the examples along four dimensions: cognitive demand, the responses expected, the use of representations, and the strategies available for verifying the correctness of the solutions. We found…

  13. The High School World History Textbook: Dreaming the Impossible Dream?

    ERIC Educational Resources Information Center

    Fleming, Dan B.

    1990-01-01

    Discusses the debate over world history survey courses. Examines eight world history textbooks. Compares the treatment of the following topics: Hammurabi's Code, Buddhism, the fall of the Bastille, and the Korean War. Also reviews goals, use of maps, visuals, and skills involving analysis of primary and secondary sources. (RW)

  14. Journalism's First Textbook: Creating a News Reporting Body of Knowledge.

    ERIC Educational Resources Information Center

    Mirando, Joe

    An analysis of five journalism books published between 1867 and 1911 provides journalism and mass communication educators and textbook authors with insight into what their earliest predecessors considered important. Strong arguments exist for each of the following five books to receive consideration as the first or oldest news reporting textbook…

  15. Textbooks and the Holocaust in Independent Ukraine: An Uneasy Past

    ERIC Educational Resources Information Center

    Dietsch, Johan

    2012-01-01

    The article examines how Ukrainian history textbooks dealt with the Holocaust between independence and 2006. The analysis reveals two major, conflicting narratives about the Holocaust, though both externalize and relativize the Holocaust. As a template for understanding genocide, the Holocaust was applied to the Soviet-imposed 1932-33 famine in…

  16. Photolysis quantum yield measurements in the near-UV; a critical analysis of 1-(2-nitrophenyl)ethyl photochemistry.

    PubMed

    Corrie, John E T; Kaplan, Jack H; Forbush, Biff; Ogden, David C; Trentham, David R

    2016-05-11

    The photolysis quantum yield, Qp, of 1-(2-nitrophenyl)ethyl phosphate (caged Pi) measured in the near-UV (342 nm peak with 60 nm half-bandwidth) is 0.53 and is based on results reported in 1978 (Biochemistry, 17, 1929-1935). This article amplifies methodology for determining that Qp in view of different recent estimates. Some general principles together with other examples relating to measurement of Qp values are discussed together with their relevance to biological research. PMID:27050155

  17. 4-[(1-Benzyl-1H-1,2,3-triazol-4-yl)meth-oxy]benzene-1,2-dicarbo-nitrile: crystal structure, Hirshfeld surface analysis and energy-minimization calculations.

    PubMed

    Shamsudin, Norzianah; Tan, Ai Ling; Young, David J; Jotani, Mukesh M; Otero-de-la-Roza, A; Tiekink, Edward R T

    2016-04-01

    In the solid state, the title compound, C18H13N5O, adopts a conformation whereby the phenyl ring and meth-oxy-benzene-1,2-dicarbo-nitrile residue (r.m.s. deviation of the 12 non-H atoms = 0.041 Å) lie to opposite sides of the central triazolyl ring, forming dihedral angles of 79.30 (13) and 64.59 (10)°, respectively; the dihedral angle between the outer rings is 14.88 (9)°. This conformation is nearly 7 kcal mol(-1) higher in energy than the energy-minimized structure which has a syn disposition of the outer rings, enabling intra-molecular π-π inter-actions. In the crystal, methyl-ene-C-H⋯N(triazol-yl) and carbo-nitrile-N⋯π(benzene) inter-actions lead to supra-molecular chains along the a axis. Supra-molecular layers in the ab plane arise as the chains are connected by benzene-C-H⋯N(carbo-nitrile) inter-actions; layers stack with no directional inter-actions between them. The specified inter-molecular contacts along with other, weaker contributions to the supra-molecular stabilization are analysed in a Hirshfeld surface analysis. PMID:27375890

  18. 4-[(1-Benzyl-1H-1,2,3-triazol-4-yl)meth­oxy]benzene-1,2-dicarbo­nitrile: crystal structure, Hirshfeld surface analysis and energy-minimization calculations

    PubMed Central

    Shamsudin, Norzianah; Tan, Ai Ling; Young, David J.; Jotani, Mukesh M.; Otero-de-la-Roza, A.; Tiekink, Edward R. T.

    2016-01-01

    In the solid state, the title compound, C18H13N5O, adopts a conformation whereby the phenyl ring and meth­oxy–benzene-1,2-dicarbo­nitrile residue (r.m.s. deviation of the 12 non-H atoms = 0.041 Å) lie to opposite sides of the central triazolyl ring, forming dihedral angles of 79.30 (13) and 64.59 (10)°, respectively; the dihedral angle between the outer rings is 14.88 (9)°. This conformation is nearly 7 kcal mol−1 higher in energy than the energy-minimized structure which has a syn disposition of the outer rings, enabling intra­molecular π–π inter­actions. In the crystal, methyl­ene-C—H⋯N(triazol­yl) and carbo­nitrile-N⋯π(benzene) inter­actions lead to supra­molecular chains along the a axis. Supra­molecular layers in the ab plane arise as the chains are connected by benzene-C—H⋯N(carbo­nitrile) inter­actions; layers stack with no directional inter­actions between them. The specified inter­molecular contacts along with other, weaker contributions to the supra­molecular stabilization are analysed in a Hirshfeld surface analysis. PMID:27375890

  19. Analysis of the {1/2}^{± } pentaquark states in the diquark model with QCD sum rules

    NASA Astrophysics Data System (ADS)

    Wang, Zhi-Gang; Huang, Tao

    2016-01-01

    In this article, we present the scalar-diquark-scalar-diquark-antiquark type and scalar-diquark-axialvector-diquark-antiquark type pentaquark configurations in the diquark model, and study the masses and pole residues of the J^P={1/2}^± hidden-charm pentaquark states in detail with the QCD sum rules by extending our previous work on the J^P={3/2}^- and {5/2}+ hidden-charm pentaquark states. We calculate the contributions of the vacuum condensates up to dimension-10 in the operator product expansion by constructing both the scalar-diquark-scalar-diquark-antiquark type and the scalar-diquark-axialvector-diquark-antiquark type interpolating currents. The present predictions of the masses can be confronted to the LHCb experimental data in the future.

  20. Online Prelectures: An Alternative to Textbook Reading Assignments

    NASA Astrophysics Data System (ADS)

    Sadaghiani, Homeyra R.

    2012-05-01

    To engage students in a more meaningful discussion of course material and prompt their higher thinking skills, most instructors expect students to read the course textbook for initial exposure to the course content before class. However, as many instructors are aware, most students do not read their textbook throughout the quarter.1,2 At California State Polytechnic University, Pomona (Cal Poly Pomona) we have adopted web-based multimedia learning modules (MLMs) as prelecture assignments to help students to prepare for the class activities. The MLMs place lecture contents into the hands and control of the learners; similar to "flipped"3 or "inverted"4 classroom approaches, this method allows students to receive key course content outside of class and apply and analyze the content actively during class. In addition to initial exposure to basic principle, the MLMs provide additional worked examples that cannot be thoroughly covered in class.

  1. Textbook Selection: A Matter of Local Choice. A Position Paper.

    ERIC Educational Resources Information Center

    New York State School Boards Association, Albany.

    Textbooks have come under a barrage of criticism ranging from overall textbook quality to changing costs. Litigation in the federal courts has challenged textbook content. New York State school boards need to examine the issues in the textbook problem. This paper explains New York State's textbook selection process, which is based on local…

  2. Open Textbook Proof-of-Concept via Connexions

    ERIC Educational Resources Information Center

    Baker, Judy; Thierstein, Joel; Fletcher, Kathi; Kaur, Manpreet; Emmons, Jonathan

    2009-01-01

    To address the high cost of textbooks, Rice University's Connexions and the Community College Open Textbook Project (CCOTP) collaborated to develop a proof-of-concept free and open textbook. The proof-of-concept served to document a workflow process that would support adoption of open textbooks. Open textbooks provide faculty and students with a…

  3. Sex Education Representations in Spanish Combined Biology and Geology Textbooks

    NASA Astrophysics Data System (ADS)

    García-Cabeza, Belén; Sánchez-Bello, Ana

    2013-07-01

    Sex education is principally dealt with as part of the combined subject of Biology and Geology in the Spanish school curriculum. Teachers of this subject are not specifically trained to teach sex education, and thus the contents of their assigned textbooks are the main source of information available to them in this field. The main goal of this study was to determine what information Biology and Geology textbooks provide with regard to sex education and the vision of sexuality they give, but above all to reveal which perspectives of sex education they legitimise and which they silence. We analysed the textbooks in question by interpreting both visual and text representations, as a means of enabling us to investigate the nature of the discourse on sex education. With this aim, we have used a qualitative methodology, based on the content analysis. The main analytical tool was an in-house grid constructed to allow us to analyse the visual and textual representations. Our analysis of the combined Biology and Geology textbooks for Secondary Year 3 revealed that there is a tendency to reproduce models of sex education that take place within a framework of the more traditional discourses. Besides, the results suggested that the most of the sample chosen for this study makes a superficial, incomplete, incorrect or biased approach to sex education.

  4. "Confused by Multiple Deities, Ancient Egyptians Embraced Monotheism": Analysing Historical Thinking and Inclusion in Egyptian History Textbooks

    ERIC Educational Resources Information Center

    Abdou, Ehaab D.

    2016-01-01

    Egyptian history textbooks are examined through the prism of historical thinking dimensions and skills, utilizing a critical discourse analysis. The analysis focuses on how the textbooks portray two historically significant events: the advent of Christianity (ca. 33 CE) and Islam (ca. 641 CE) to Egypt. It reveals that the historical narrative…

  5. Analysis of 1.2 kV JBS rectifiers fabricated in 4H-SiC

    NASA Astrophysics Data System (ADS)

    Pérez, R.; Mestres, N.; Vellvehí, M.; Godignon, P.; Millán, J.

    2006-05-01

    In this work we investigate the current-voltage characteristics of fabricated junction barrier Schottky (JBS) rectifiers with different aluminium implantation profiles in their p-type grid regions. Good performance characteristics of 1.2 kV JBS, Schottky and implanted PiN diodes processed on the same 4H-SiC wafer have been tested. A bilayer Ni/Ti anode contact metallization scheme submitted to high-temperature rapid thermal anneals is proved to form both good ohmic contact on p+ implanted areas and good Schottky characteristics on lightly doped n-type regions. High-temperature current-voltage characteristics have been evaluated up to 560 K. At room temperature, Schottky diodes have slightly better specific on-resistance, but when the operating temperature is increased, the JBS diode exhibits better characteristics due to the temperature-dependent activation of bipolar current injection from the p+ grid. From reverse measurements, the JBS diodes showed lower leakage current and higher breakdown voltages in comparison to those of the Schottky diodes in the whole range of temperatures. Moreover, we have proved the influence of the doping profile in JBS p-type grid regions on their forward on-resistance.

  6. Crystallographic analysis of 1,2,3-trichloropropane biodegradation by the haloalkane dehalogenase DhaA31.

    PubMed

    Lahoda, Maryna; Mesters, Jeroen R; Stsiapanava, Alena; Chaloupkova, Radka; Kuty, Michal; Damborsky, Jiri; Kuta Smatanova, Ivana

    2014-02-01

    Haloalkane dehalogenases catalyze the hydrolytic cleavage of carbon-halogen bonds, which is a key step in the aerobic mineralization of many environmental pollutants. One important pollutant is the toxic and anthropogenic compound 1,2,3-trichloropropane (TCP). Rational design was combined with saturation mutagenesis to obtain the haloalkane dehalogenase variant DhaA31, which displays an increased catalytic activity towards TCP. Here, the 1.31 Å resolution crystal structure of substrate-free DhaA31, the 1.26 Å resolution structure of DhaA31 in complex with TCP and the 1.95 Å resolution structure of wild-type DhaA are reported. Crystals of the enzyme-substrate complex were successfully obtained by adding volatile TCP to the reservoir after crystallization at pH 6.5 and room temperature. Comparison of the substrate-free structure with that of the DhaA31 enzyme-substrate complex reveals that the nucleophilic Asp106 changes its conformation from an inactive to an active state during the catalytic cycle. The positions of three chloride ions found inside the active site of the enzyme indicate a possible pathway for halide release from the active site through the main tunnel. Comparison of the DhaA31 variant with wild-type DhaA revealed that the introduced substitutions reduce the volume and the solvent-accessibility of the active-site pocket. PMID:24531456

  7. The Culture and Commerce of the Textbook.

    ERIC Educational Resources Information Center

    Apple, Michael W.

    1985-01-01

    The textbook dominates curricula at the elementary, secondary, and even college levels. The ideological, political, and economic sources of its production, distribution, and reception are examined. (RM)

  8. Textbooks and technical references for remote sensing

    NASA Technical Reports Server (NTRS)

    Rudd, R. D.; Bowden, L. W.; Colwell, R. N.; Estes, J. E.

    1980-01-01

    A selective bibliography is presented which cites 89 textbooks, monographs, and articles covering introductory and advanced remote sensing techniques, photointerpretation, photogrammetry, and image processing.

  9. Total joint replacement: A multiple risk factor analysis of physical activity level 1-2 years postoperatively.

    PubMed

    Paxton, Elizabeth W; Torres, Andy; Love, Rebecca M; Barber, Thomas C; Sheth, Dhiren S; Inacio, Maria C S

    2016-07-01

    Background and purpose - The effect of total joint arthroplasty (TJA) on physical activity is not fully understood. We investigated the change in physical activity after TJA and patient factors associated with change. Patients and methods - Using a total joint replacement registry, primary total hip arthroplasty (THA) patients (n = 5,678) and knee arthroplasty (TKA) patients (n = 11,084) between January 1, 2010 and December 31, 2012 were identified. Median age at THA was 68 and median age at TKA was 67. Change in self-reported physical activity (minutes per week) from before TJA (within 1 year of surgery) to after TJA (1-2 years) was the outcome of interest. Patient demographics and comorbidities were evaluated as risk factors. Multiple linear regression was used. Results - Median physical activity before surgery was 50 min/week (IQR: 0-140) for THA patients and 58 (IQR: 3-143) for TKA patients. Median physical activity after surgery was 150 min/week (IQR: 60-280) for both THA patients and TKA patients. Following TJA, 50% of patients met CDC/WHO physical activity guideline criteria. Higher body mass index was associated with lower change in physical activity (THA: -7.1 min/week; TKA: -5.9 min/week). Females had lower change than males (THA: -11 min/week; TKA: -9.1 min/week). In TKA patients, renal failure was associated with lower change (-17 min/week), as were neurological disorders (-30 min/week). Interpretation - Self-reported minutes of physical activity increased from before to after TJA, but 50% of TJA patients did not meet recommended physical activity guideline criteria. Higher body mass index, female sex, and specific comorbidities were found to be associated with low change in physical activity. Patient education on the benefits of physical activity should concentrate on these subgroups of patients. PMID:27299567

  10. RNA-seq analysis is easy as 1-2-3 with limma, Glimma and edgeR

    PubMed Central

    Law, Charity W.; Alhamdoosh, Monther; Su, Shian; Smyth, Gordon K.; Ritchie, Matthew E.

    2016-01-01

    The ability to easily and efficiently analyse RNA-sequencing data is a key strength of the Bioconductor project. Starting with counts summarised at the gene-level, a typical analysis involves pre-processing, exploratory data analysis, differential expression testing and pathway analysis with the results obtained informing future experiments and validation studies. In this workflow article, we analyse RNA-sequencing data from the mouse mammary gland, demonstrating use of the popular edgeR package to import, organise, filter and normalise the data, followed by the limma package with its voom method, linear modelling and empirical Bayes moderation to assess differential expression and perform gene set testing. This pipeline is further enhanced by the Glimma package which enables interactive exploration of the results so that individual samples and genes can be examined by the user. The complete analysis offered by these three packages highlights the ease with which researchers can turn the raw counts from an RNA-sequencing experiment into biological insights using Bioconductor. PMID:27441086

  11. Islam and the Textbooks. A Report of the American Textbook Council.

    ERIC Educational Resources Information Center

    Sewall, Gilbert T.

    How widely adopted world history textbooks cover Islam and the history of the Middle East is a timely and important subject to explore. In 2001 the American Textbook Council began a comprehensive review of middle school and high school world history textbooks. The Council relied on respected historians and standard sources, influential articles…

  12. Evaluation of WorldView Textbooks; Textbooks Taught at a Military University

    ERIC Educational Resources Information Center

    Khalili, Masoud; Jodai, Hojat

    2012-01-01

    This paper intends to evaluate the WorldView series textbooks of English learning, which are being taught at an Iranian military university foreign language center. No textbook evaluation had been conducted by the university administration prior to the introduction of the textbooks to the language program. Theorists in the field of ELT textbook…

  13. Back to the Future with Textbooks: Using Textbook Passages from the Past to Help Teach Historiography

    ERIC Educational Resources Information Center

    DeRose, John J.

    2009-01-01

    Old textbooks are one resource for teaching about the evolution of historical interpretation. Some libraries contain collections of U.S. history textbooks spanning multiple years and some schools even keep older textbooks used in past years. Recently, the author used a book by Kyle Ward entitled "History in the Making: An Absorbing Look at How…

  14. Test and analysis of the stability of friction drive of the vertical axis of the 1.2 m alt-az telescope.

    NASA Astrophysics Data System (ADS)

    Feng, Hesheng; Jiang, Chongguo; Wu, Wang; Wang, Jinso; Zhang, Yuncheng; Xiong, Yaoheng; Yang, Wanjiang; Niu, Xin

    The test and analysis of the static and dynamic stability of friction drive of the vertical axis of the 1.2 m alt-az telescope at Yunnan Observatory are carried out. The actual velocities and accelerations to be needed for tracking the Moon and the Lageos satellite are simulated. The tested results show that the stability of friction drive system can meet the needs of the ±1″tracking accuracy.

  15. TLR1, 2, 4, 6 and 9 Variants Associated with Tuberculosis Susceptibility: A Systematic Review and Meta-Analysis

    PubMed Central

    Schurz, Haiko; Daya, Michelle; Möller, Marlo; Hoal, Eileen G.; Salie, Muneeb

    2015-01-01

    Background Studies investigating the influence of toll-like receptor (TLR) polymorphisms and tuberculosis susceptibility have yielded varying and often contradictory results in different ethnic groups. A meta-analysis was conducted to investigate the relationship between TLR variants and susceptibility to tuberculosis, both across and within specific ethnic groups. Methods An extensive database search was performed for studies investigating the relationship between TLR and tuberculosis (TB) susceptibility. Data was subsequently extracted from included studies and statistically analysed. Results 32 articles involving 18907 individuals were included in this meta-analysis, and data was extracted for 14 TLR polymorphisms. Various genetic models were employed. An increased risk of TB was found for individuals with the TLR2 rs3804100 CC and the TLR9 rs352139 GA and GG genotypes, while decreased risk was identified for those with the AG genotype of TLR1 rs4833095. The T allele of TLR6 rs5743810 conferred protection across all ethnic groups. TLR2 rs5743708 subgroup analysis identified the A allele to increase susceptibility to TB in the Asian ethnic group, while conferring protection in the Hispanic group. The T allele of TLR4 rs4986791 was also found to increase the risk of TB in the Asian subgroup. All other TLR gene variants investigated were not found to be associated with TB in this meta-analysis. Discussion Although general associations were identified, most TLR variants showed no significant association with TB, indicating that additional studies investigating a wider range of pattern recognition receptors is required to gain a better understanding of this complex disease. PMID:26430737

  16. Scarf versus chevron osteotomy for the correction of 1-2 intermetatarsal angle in hallux valgus: a systematic review and meta-analysis.

    PubMed

    Smith, Simon E; Landorf, Karl B; Butterworth, Paul A; Menz, Hylton B

    2012-01-01

    The chevron and scarf osteotomies are commonly used for the surgical management of hallux valgus (HV). However, there is debate as to whether one osteotomy provides more 1-2 intermetatarsal (1-2 IMA) correction than the other. The objective of this systematic review and meta-analysis was to compare the effectiveness of 3 types of first metatarsal osteotomy for reducing the 1-2 IMA in HV correction: the chevron osteotomy, the long plantar arm (modified) chevron osteotomy, and the scarf osteotomy. A systematic search for eligible studies was performed of the following databases: Medline, Embase (Ovid), CINAHL (EBSCO Host), and The Cochrane Database of Systematic Reviews and Cochrane Central Register of Controlled Clinical Trials. Only English-language studies previous to May 2010 were included in the review. Additional hand and electronic content searches of relevant foot and orthopaedic journals were performed. Criteria for inclusion in this analysis included systematic reviews of randomized controlled trials, prospective and retrospective cohort studies, and case-control studies, as well as case-series studies involving the chevron, scarf, or long plantar arm chevron osteotomy of >20 participants with a minimum of 80% follow-up. Quality of evidence of the included studies was assessed with the Grading of Recommendations Assessment, Development and Evaluation system. All pooled analyses were based on a fixed effects model. There was a total of 1351 participants who underwent either a chevron (n = 1028), scarf (n = 300), or long plantar arm chevron osteotomy (n = 23). Only one study for the long plantar arm chevron group fitted the eligibility criteria for this review; however, it was not amenable to meta-analysis. The chevron osteotomy was associated with a mean reduction of 1-2 IMA from preoperative to postoperative of 5.33° (95% confidence interval, 5.12 to 5.54, p < .001), and the scarf osteotomy was associated with a mean reduction of 6.21° (95% confidence

  17. Integration of Launch Vehicle Simulation/Analysis Tools and Lunar Cargo Lander Design. Part 1/2

    NASA Technical Reports Server (NTRS)

    Shiue, Yeu-Sheng Paul

    2005-01-01

    Simulation and analysis of vehicle performance is essential for design of a new launch vehicle system. It is more and more demand to have an integrated, highly efficient, robust simulation tool with graphical user interface (GUI) for vehicle performance and simulations. The objectives of this project are to integrate and develop launch vehicle simulation and analysis tools in MATLAB/Simulink under PC Platform, to develop a vehicle capable of being launched on a Delta-IV Heavy Launch Vehicle which can land on the moon with the goal of pre-implanting cargo for a new lunar mission, also with the capability of selecting other launch vehicles that are capable of inserting a payload into Trans-Lunar Injection (TLI). The vehicle flight simulation software, MAVERIC-II (Marshall Aerospace VEhicle Representation In 'C'), developed by Marshall Space Flight Center was selected as a starting point for integration of simulation/analysis tools. The goals are to convert MAVERIC-II from UNIX to PC platform and build input/output GUI s in the MATLAB environment, and then integrate them under MATLAB/Simulink with other modules. Currently, MAVERIC-II has been successfully converted from UNIX to PC using Microsoft Services for UNIX subsystem on PC. Input/Output GUI's have been done for some key input/output files. Calling MAVERIC-II from Simulink has been tested. Details regarding Lunar Cargo Lander Design are described in Part 2/2 of the paper on page X-1.

  18. One-Semester Introductory Economics Textbooks: Echoes and Choices.

    ERIC Educational Resources Information Center

    Shackelford, Jean

    1991-01-01

    Reviews 21 one-semester economics textbooks using Kenneth E. Boulding's ideas for introductory textbooks. Lists 240 concepts and topic areas in macroeconomics, microeconomics, public policy, and international economics that may be covered in a textbook. (NL)

  19. Textbook presentations of weight: Conceptual difficulties and language ambiguities

    NASA Astrophysics Data System (ADS)

    Taibu, Rex; Rudge, David; Schuster, David

    2015-06-01

    The term "weight" has multiple related meanings in both scientific and everyday usage. Even among experts and in textbooks, weight is ambiguously defined as either the gravitational force on an object or operationally as the magnitude of the force an object exerts on a measuring scale. This poses both conceptual and language difficulties for learners, especially for accelerating objects where the scale reading is different from the gravitational force. But while the underlying physical constructs behind the two referents for the term weight (and their relation to each other) are well understood scientifically, it is unclear how the concept of weight should be introduced to students and how the language ambiguities should be dealt with. We investigated treatments of weight in a sample of twenty introductory college physics textbooks, analyzing and coding their content based on the definition adopted, how the distinct constructs were dealt with in various situations, terminologies used, and whether and how language issues were handled. Results indicate that language-related issues, such as different, inconsistent, or ambiguous uses of the terms weight, "apparent weight," and "weightlessness," were prevalent both across and within textbooks. The physics of the related constructs was not always clearly presented, particularly for accelerating bodies such as astronauts in spaceships, and the language issue was rarely addressed. Our analysis of both literature and textbooks leads us to an instructional position which focuses on the physics constructs before introducing the term weight, and which explicitly discusses the associated language issues.

  20. Analysis of the Herschel/HIFI 1.2 THz Wide Spectral Survey of the Orion Kleinmann-Low Nebula

    NASA Astrophysics Data System (ADS)

    Crockett, Nathan R.

    This dissertation presents a comprehensive analysis of a broad band spectral line survey of the Orion Kleinmann-Low nebula (Orion KL), one of the most chemically rich regions in the Galaxy, using the HIFI instrument on board the Herschel Space Observatory. This survey spans a frequency range from 480 to 1907 GHz at a resolution of 1.1 MHz. These observations thus encompass the largest spectral coverage ever obtained toward this massive star forming region in the sub-mm with high spectral resolution, and include frequencies >1 THz where the Earth's atmosphere prevents observations from the ground. In all, we detect emission from 36 molecules (76 isotopologues). Combining this dataset with ground based mm spectroscopy obtained with the IRAM 30 m telescope, we model the molecular emission assuming local thermodynamic equilibrium (LTE). Because of the wide frequency coverage, our models are constrained over an unprecedented range in excitation energy, including states at or close to ground up to energies where emission is no longer detected. A χ2 analysis indicates that most of our models reproduce the observed emission well. In particular complex organics, some with thousands of transitions, are well fit by LTE models implying that gas densities are high (>10^6 cm^-3) and excitation temperatures and column densities are well constrained. Molecular abundances are computed using H2 column densities also derived from the HIFI survey. The rotation temperature distribution of molecules detected toward the hot core is much wider relative to the compact ridge, plateau, and extended ridge. We find that complex N-bearing species, cyanides in particular, systematically probe hotter gas than complex O-bearing species. This indicates complex N-bearing molecules may be more difficult to remove from grain surfaces or that hot gas phase formation routes are important for these species. We also present a detailed non-LTE analysis of H2S emission toward the hot core which suggests

  1. Thermolysis of (1R,2R)-1,2-dideuteriocyclobutane. An application of vibrational circular dichroism to kinetic analysis

    SciTech Connect

    Chickos, J.S.; Annamalai, A.; Keiderling, T.A.

    1986-07-23

    The relative rates of geometric isomerization to racemization have been studied for the title compound by using a combination of infrared (IR) and vibrational circular dichroism (VCD) spectroscopies, respectively. The results are interpreted with a kinetic and mechanistic scheme which parallels that used by Berson, Pedersen, and Carpenter on a similar study of chiral cyclopropane-d/sub 2/ thermolysis. Relative rates of isomerization to stereomutation of 1.5 +/- 0.4 were obtained which can be interpreted to be consistent with a mechanism best described by random methylene rotation in tetramethylene-d/sub 2/. This is the first application of VCD to kinetic analysis, and the advantages of IR techniques over the more usually employed UV spectroscopies to this type of basic mechanistic problem are illustrated.

  2. Nutrition messages in language arts and mathematics textbooks used in English elementary schools in Montreal.

    PubMed

    Baron, V

    1990-11-01

    This analysis examined references to foods mentioned in elementary school textbooks used in Montreal English schools. A study of 58 language arts and mathematics textbooks used in grades one-six revealed 4,391 references to foods in words and pictures. A large proportion of the references were to sugar-rich foods. Eating with peers was depicted more frequently than eating with family, while a surprising number of children were depicted consuming their food alone in texts used in grades one-three. Results suggest that, because unintended information may influence children's nutritional habits, more attention should be directed at concomitant messages in elementary school textbooks. PMID:2283875

  3. Cloning and expression analysis of recombination activating genes (RAG1/2) in red snapper (Lutjanus sanguineus).

    PubMed

    Zhang, X L; Lu, Y S; Jian, J C; Wu, Z H

    2012-04-01

    Recombination activating genes (RAG1 and RAG2), involved in the V(D)J recombination of immunoglobulin and T-cell receptor genes play a crucial role in the adaptive immune response in vertebrates. The expression of these genes was required for the proper development and maturity of lymphocytes so that they can be used as useful markers to evaluate the development of lymphoid organ. In this paper, the cDNA of RAG1 and RAG2 in red snapper, Lutjanus sanguineus were cloned by homological cloning and rapid amplification of cDNA ends (RACE) methods. Results showed the full length of RAG1 cDNA was 3944 bp, containing a 5' untranslated region (UTR) of 200 bp, a 3'-UTR of 561 bp and an open reading frame of 3183 bp encoding 1060 amino acids. Three important structural motifs, a RING/U-box domain, a RING/FYVE/PHD-type domain and a RAG Nonamer-binding domain were detected in the deduced amino acid sequence of RAG1 by InterProScan analysis. The full length of RAG2 cDNA was 2200 bp, consisting of a 141 bp 5'-UTR, a 457 bp 3'-UTR and an open reading frame of 1602 bp encoding 533 amino acids. Two important structural motifs, a Galactose oxidase/kelch, beta-propeller domain and a kelch-type beta-propeller domain were detected in the deduced amino acid sequence of RAG2 by InterProScan analysis. BLAST analysis revealed that the RAG1 and RAG2 in red snapper shared a high homology with other known RAG1 and RAG2 genes, while the greatest degree of identity was observed with Hippoglossus hippoglossus RAG1 at 82% and Takifugu rubripes RAG2 at 87%, respectively. The differential expressions of RAG1 and RAG2 in various tissues of red snapper were analyzed by fluorescent quantitative real-time PCR. The overall expression pattern of the two genes was quite similar. In healthy red snappers, the RAGs transcripts were mainly detected in thymus, following head kidney, spleen, intestine, liver and brain. After vaccinated with inactivated Vibrio alginolyticus 48 h later, the RAGs m

  4. The Nature and Implication of Textbook Bias.

    ERIC Educational Resources Information Center

    Parsons, Jim

    Savage, blood-thirsty, drunk, monosyllabic, naked, and primitive are the stereotypes of Native Americans in textbooks. These stereotypes are so pervasive that they tend to be accepted uncritically by the rest of society. The evidence suggests that many textbooks are biased and, in a large number of cases, outright racist. The concept of "errors by…

  5. Communicating Physics and the Design of Textbooks.

    ERIC Educational Resources Information Center

    Barojas, Jorge; Trigueros, Maria

    1991-01-01

    The planning of an introductory calculus textbook in classical mechanics is shown as an example of an approach to textbook design that uses four main cognitive categories: sources of learning, instruments of learning, processes of knowing, and mechanisms of knowing. The aspects, domains, description, and elements of each section of the textbook…

  6. Are High School Chemistry Textbooks Gender Fair?

    ERIC Educational Resources Information Center

    Bazler, Judith A.; Simonis, Doris A.

    1991-01-01

    Study compared two generations of seven high school chemistry texts (1970/1973) and current editions analyzed for gender fairness in illustrations and concrete analogies. Among conclusions was there were significant differences between the old textbooks and newer textbooks in relative frequencies of illustrations of men and woman and no…

  7. Uncovering Conceptual Gaps in Introductory IS Textbooks

    ERIC Educational Resources Information Center

    Hassan, Nik R.; Becker, Jack D.

    2007-01-01

    This study performs an exploration of the relationship between introductory IS textbooks and the body of knowledge represented by the set of "super classic" IS publications. Textbooks play a critical role of introducing the IS field to IS majors, describing what constitutes mainstream IS knowledge and communicating to other disciplines and their…

  8. E-Textbooks and Students' Learning Experiences

    ERIC Educational Resources Information Center

    Sun, Jun; Flores, Javier; Tanguma, Jesus

    2012-01-01

    The contribution of the e-textbooks can be enormous considering their additional supporting features, but adoption has not crystallized yet. This study examines the relevant experiences of college students in terms of how the use of e-textbooks may enhance their learning. A survey study was conducted to measure the perceptions of each student on…

  9. Educators Weigh E-Textbook Cost Comparisons

    ERIC Educational Resources Information Center

    Tomassini, Jason

    2012-01-01

    During the first-ever Digital Learning Day, U.S. Secretary of Education Arne Duncan and Federal Communications Commission chief Julius Genachowski unveiled an ambitious plan earlier this year to get schools to switch from print to digital textbooks by 2017. Dubbed the Digital Textbook Playbook, it's a recommendation for how schools could transform…

  10. Providing Online Textbooks to the Developing World

    ERIC Educational Resources Information Center

    Foster, Andrea L.

    2008-01-01

    Learning is valuable, but in Africa it is more than that: It is prohibitively expensive. In Ethiopia, where the per-capita income is about $100 a year, a single textbook at Addis Ababa University can cost $50. To get more textbooks to students in developing nations, two people are leading an ambitious project to produce and freely distribute 1,000…

  11. Needed: A Single Electronic Source for Textbooks

    ERIC Educational Resources Information Center

    Storch, Joseph

    2009-01-01

    Students still obtain most educational content through textbooks and other printed materials. But as technology has changed, they are able to gain access to more of that content digitally, and often illegally. As textbook costs have increased, students have begun scanning and illegally sharing books over peer-to-peer file-sharing networks to save…

  12. New Edition of Chinese Biochemistry Textbook.

    ERIC Educational Resources Information Center

    Jian-Chuan, Ma

    1988-01-01

    Discusses the four previous editions of the biochemistry medical textbooks called the "Nationwide Unified Textbooks." Notes the new (1989) edition is much smaller, is organized differently, has new material, has a reorganized Dynamic Biochemistry core, and shows great importance to clinical biochemistry. (MVL)

  13. Challenges to Public School Reading Textbooks.

    ERIC Educational Resources Information Center

    Patterson, Frances R. A.

    1996-01-01

    Analyzes five cases related to challenges to public school textbooks. Five different U.S. Courts of Appeal have considered the objections of parents to textbooks, and all five found for the defendant school districts. Reveals that what began as a grassroots parental movement evolved into a nationwide crusade that has embroiled communities. (129…

  14. Using Textbooks Effectively. TESOL Classroom Practice Series

    ERIC Educational Resources Information Center

    Savova, Lilia, Ed.

    2009-01-01

    This volume in the TESOL Classroom Practice Series asks one fundamental question, "How can teachers teach the students, not the book?" The response, given within "Using Textbooks Effectively", is to move beyond the textbook as a separate entity and view it instead as part of the ESOL curriculum process and as a tool for student learning. The…

  15. For Sale: Subliminal Bias in Textbooks.

    ERIC Educational Resources Information Center

    Britton, Gwyneth E.; Lumpkin, Margaret C.

    Between 1972 and 1975, textbook publishers have issued position papers and guidelines for authors which both identify the areas of bias (sex, race, and career) hidden in public school textbooks and suggest alternative measures for authors and editors to consider in order to avoid these biases. This study was begun in 1972 to determine whether…

  16. Diminishing Marginal Utility in Economics Textbooks

    ERIC Educational Resources Information Center

    Dittmer, Timothy

    2005-01-01

    Many introductory microeconomics textbook authors derive the law of demand from the assumption of diminishing marginal utility. Authors of intermediate and graduate textbooks derive demand from diminishing marginal rate of substitution and ordinal preferences. These approaches are not interchangeable; diminishing marginal utility for all goods is…

  17. Open-Access Electronic Textbooks: An Overview

    ERIC Educational Resources Information Center

    Ovadia, Steven

    2011-01-01

    Given the challenging economic climate in the United States, many academics are looking to open-access electronic textbooks as a way to provide students with traditional textbook content at a more financially advantageous price. Open access refers to "the free and widely available information throughout the World Wide Web. Once an article's author…

  18. "Essential Principles of Economics:" A Hypermedia Textbook.

    ERIC Educational Resources Information Center

    McCain, Roger A.

    2000-01-01

    Discusses an electronic textbook called "Essential Principles of Economics." Explains that economic concepts are found by following links from the table of contents, while each chapter includes both expository information and interactive material including online multiple-choice drill questions. States that the textbook is a "work in progress."…

  19. Black Chronicle: An American History Textbook Supplement.

    ERIC Educational Resources Information Center

    Kailin, Clarence S.; Sylvester, Mary Jean, Ed.

    The chronicle provides an accurate and balanced representation of the history of the black experience in an effort to counteract misinformation presented in most textbooks. American history textbooks used in Wisconsin school districts ignore or distort the cultural experiences and contributions of blacks, often omitting important information,…

  20. New Ideologies in Postcommunist Russian Textbooks.

    ERIC Educational Resources Information Center

    Lisovskaya, Elena; Karpov, Vyacheslav

    1999-01-01

    Explores patterns of recent ideological changes in the content of 12 Russian secondary school textbooks in the social sciences and humanities. Shows that textbook content has shifted from a consistent representation of key dogmas of Marxism-Leninism toward a contradictory combination of the ideological symbols of nationalism, Westernism, and…

  1. Illustrating Social Studies in School Textbooks

    ERIC Educational Resources Information Center

    George, Alex M.

    2013-01-01

    The use of cartoons as illustrations in National Council of Educational Research and Training's (NCERT) Political Science textbooks has recently attracted attention from leaders across the political spectrum. Textbooks have been burnt and the government has set up a committee to inquire into the appropriateness of using cartoons in school…

  2. Religion in School History Textbooks in Europe.

    ERIC Educational Resources Information Center

    Council for Cultural Cooperation, Strasbourg (France).

    The need to improve the presentation of religion in secondary history textbooks is examined by this symposium. Religious content, concept formation, and historical accuracy are examined in the report on religion in school history textbooks. A general discussion on the place of religion in the history of mankind offers insight concerning religious…

  3. Improving the Textbook Adoption Process in Taiwan

    ERIC Educational Resources Information Center

    Ho, Hsuan-fu; Hsu, Ying-tsun

    2011-01-01

    Textbooks were centrally selected in Taiwan until 1996 when the government commissioned its Textbook Liberalization Reform. Although this policy received complements from scholars and the general public, it encounters many unexpected problems in its implementation. The aims of this research are thus to identify the major criteria used by…

  4. Forty Targets of the Textbook Protesters.

    ERIC Educational Resources Information Center

    Jenkinson, Edward B.

    This paper gives a brief history of the Reverend Jerry Falwell's Moral Majority campaign against humanism in public school education. The document describes the successful textbook evaluation strategies of Mel and Norma Gabler of Texas, on which Dr. Falwell relies heavily, and lists 20 organizations protesting textbooks, library books, and…

  5. A Consumer's Guide to Biology Textbooks 1985.

    ERIC Educational Resources Information Center

    Moyer, Wayne A.; Mayer, William V.

    Presented are critical reviews of 18 biology textbooks submitted for consideration by the Texas State Board of Education during 1984. These reviews are provided in three categories: (1) general biology textbooks: "Biology and Human Progress"--Prentice Hall; "Scott, Foresman Life Science"--Scott, Foresman; "Living Things"--Holt, Rinehart, and…

  6. The Role of Textbooks in Asian Education.

    ERIC Educational Resources Information Center

    Gopinathan, S.

    1983-01-01

    Great strides have been made in providing textbooks in Asian schools, and these books are increasingly good. However, problems exist when teachers depend too heavily upon textbooks. Teachers are learning to develop instructional materials, and new techniques are being introduced, but the impact of these changes is not yet certain. (IS)

  7. Synthesis of 1H-1,2,3-triazole linked aryl(arylamidomethyl) - dihydrofurocoumarin hybrids and analysis of their cytotoxicity.

    PubMed

    Lipeeva, Alla V; Pokrovsky, Mikhail A; Baev, Dmitry S; Shakirov, Makhmut M; Bagryanskaya, Irina Y; Tolstikova, Tatijana G; Pokrovsky, Andrey G; Shults, Elvira E

    2015-07-15

    A series of 2-(4-R-triazolyl)substituted 3-oxo-2,3-dihydrofurocoumarins have been synthesized by a regioselective cycloaddition of 2-azidooreoselone 1 or 2-azido-9-[(4-methylpiperazin-1-yl)methyl]oreoselone 2 with various alkynes in the presence of Cu(II)/ascorbate in water/methylene chloride reaction medium. The structure of 2-azidooreoselone was established by X-ray structure analysis. The cytotoxicity of 2-substituted dihydrofurocoumarins was determined against three cancer cell lines (CEM-13, MT-4, U-937) using the conventional MTT assays. Among the tested molecules, most of the analogs displayed better cytotoxic activity then the parent natural furocoumarin peucedanin 3. The activity and selectivity to the cell line increased even further in the series of 2-(4-{2,3-dihydrobenzo[b][1,4]dioxine}triazolyl)-3-oxo-2,3-dihydrofurocoumarins and 2-(4-aryltriazolyl)-3-oxo-2,3-dihydrofurocoumarins having the (4-methylpiperazin-1-ylmethyl) substituent in the 9-th position. The most active compound 20 contain the 4-hydroxy-3-methoxybenzamidomethyl substituent in the 4-th position at the triazole ring of 2-(triazol-1-yl)dihydrofurocoumarins. The obtained 2-triazolyl substituted dihydrofurocoumarins were studied as inhibitors of phosphodiesterase (PDE-4B) using docking experiments. As a result of virtual screening 3 compounds are selected based on minimum binding energy. The interactions of the most active compound and amino acid residues in the binding site were studied. PMID:26079088

  8. ZORNOC: a 1 1/2-D tokamak data analysis code for studying noncircular high beta plasmas

    SciTech Connect

    Zurro, B.; Wieland, R.M.; Murakami, M.; Swain, D.W.

    1980-03-01

    A new tokamak data analysis code, ZORNOC, was developed to study noncircular, high beta plasmas in the Impurity Study Experiment (ISX-B). These plasmas exhibit significant flux surface shifts and elongation in both ohmically heated and beam-heated discharges. The MHD equilibrium flux surface geometry is determined by solving the Grad-Shafranov equation based on: (1) the shape of the outermost flux surface, deduced from the magnetic loop probes; (2) a pressure profile, deduced by means of Thomson scattering data (electrons), charge exchange data (ions), and a Fokker-Planck model (fast ions); and (3) a safety factor profile, determined from the experimental data using a simple model (Z/sub eff/ = const) that is self-consistently altered while the plasma equilibrium is iterated. For beam-heated discharches the beam deposition profile is determined by means of a Monte Carlo scheme and the slowing down of the fast ions by means of an analytical solution of the Fokker-Planck equation. The code also carries out an electron power balance and calculates various confinement parameters. The code is described and examples of its operation are given.

  9. Coverage of child maltreatment in abnormal psychology textbooks: Reviewing the adequacy of the content.

    PubMed

    Wilgus, Sam J; Packer, Mary M; Lile-King, Rachel; Miller-Perrin, Cindy L; Brand, Bethany L

    2016-03-01

    Abnormal psychology courses introduce undergraduate students to the range, causes, and treatments of psychological disorders. These courses present important opportunities to instruct students about disorders and treatments associated with childhood maltreatment (CM) as well as its prevalence. Little research has examined the adequacy with which abnormal psychology textbooks present information about CM. The present study reviewed the CM content of 10 abnormal psychology textbooks. The content was assessed in terms of the number of times CM was mentioned, the number of psychological disorders linked to CM, and the number of CM-related research citations. In addition, the authors conducted a content analysis to examine the significance, depth of detail, and organizational structure of the information provided within the sections of text addressing CM. There were significant differences in scores and the accuracy of coverage of CM across textbooks. Most of the textbooks lack key information on CM. The information presented in many textbooks is not consistent with current research and is overly focused on controversies. These findings are concerning because research has linked many psychological disorders and problematic outcomes to CM, but this information is not adequately conveyed to students via abnormal psychology textbooks. The authors make recommendations for improving the coverage of CM in abnormal psychology textbooks. PMID:26010115

  10. English as a Multicultural Language: Implications from a Study of Japan's Junior High Schools' English Language Textbooks

    ERIC Educational Resources Information Center

    Yamada, Mieko

    2010-01-01

    Applying Kachru and Nelson's model of English spread and their categorisation into Inner/Outer/Expanding Circles, this content analysis of English as a Foreign Language textbooks used in Japanese junior high schools investigates which countries were introduced and further studies how Japan's domestic diversity was constructed in those textbooks.…

  11. Folk Dress, Fiestas, and Festivals: How Is Mexico Portrayed in U.S. Primary Grade Social Studies Textbooks?

    ERIC Educational Resources Information Center

    Field, Sherry L.; Bauml, Michelle; Wilhelm, Ron W.; Jenkins, Joelle

    2012-01-01

    This qualitative content analysis was conducted to determine how Mexico and Mexican people are portrayed in contemporary U.S. elementary social studies textbooks. Three textbooks from each of three major publishers were analyzed. Findings are presented in five sections: images and photographs, holidays, Mexican people and heroes, contested…

  12. Representing Two Worlds: Illustrations in Spanish Textbooks for the Teaching of Religion and Object Lessons (1900-1970)

    ERIC Educational Resources Information Center

    Badanelli, Ana Maria

    2012-01-01

    This article aims to give an overview of the use and the meaning of images in two types of school textbooks used in Spain from the early twentieth century until the end of the 1960s: the textbooks "Lecciones de cosas" ("object lessons") and those used for the teaching of religion. For this analysis the iconographic-iconological method will be used…

  13. Evolution in Secondary School Biology Textbooks of the PRC, the USA, and the Latter Stages of the USSR.

    ERIC Educational Resources Information Center

    Swarts, Frederick A.; And Others

    1994-01-01

    The presentations of evolutionary theory of 13 prominent secondary school biology textbooks (3 Chinese, 8 American, and 2 Soviet) were examined using the methods of content analysis. Pronounced differences in topic emphasis among the 13 textbooks and systematic trends between countries are discussed. (Author/ZWH)

  14. Orientalism(s), World Geography Textbooks, and Temporal Paradox: Questioning Representations of Southwest Asia and North Africa

    ERIC Educational Resources Information Center

    Zagumny, Lisa; Richey, Amanda B.

    2013-01-01

    In this critical discourse analysis of six high-school world geography textbooks, we explore how constructions and representations of North Africa and Southwest Asia have served to reinforce Orientalist discourse in formal curriculum. Visual and written representations in these textbooks were overwhelmingly confounded by a traditional/modern…

  15. Adaptations and Continuities in the Use and Design of Visual Representations in US Middle School Science Textbooks

    ERIC Educational Resources Information Center

    Lee, Victor R.

    2010-01-01

    Visual representations are ubiquitous in modern-day science textbooks and have in recent years become an object of criticism and scrutiny. This article examines the extent to which changes in representations in textbooks published in the USA over the past six decades have invited those critiques. Drawing from a correlational analysis of a corpus…

  16. Scientific and Technical Chinese, Volume I. A Textbook of Twenty-One Lessons and Supplementary Readings.

    ERIC Educational Resources Information Center

    Kao, Kung-yi; And Others

    An intermediate-level textbook intended for those who have had at least 2 1/2 years of Chinese language study is presented. The objective of the text is to assist in developing the reading and conversational skills required for dealing with general topics in the pure and applied sciences. Common terms and concepts from three general fields (Life…

  17. Voluntary childlessness in marriage and family textbooks, 1950-2000.

    PubMed

    Chancey, L; Dumais, S A

    2009-04-01

    We perform a content analysis of twenty marriage and family textbooks published between 1950 and 2000 to study how the voluntarily childless are presented in undergraduate courses. Throughout the time period studied, independence, pursuit of a career, and romance were prominent themes in the representation of voluntary childlessness. Other themes emerged specific to each decade - the 1950s portrayed parenthood as a challenge, while the 1990s concentrated on alleviating negative stereotypes of the voluntarily childless. PMID:19618557

  18. Synthesis, antifungal activity and CoMFA analysis of novel 1,2,4-triazolo[1,5-a]pyrimidine derivatives.

    PubMed

    Chen, Qiong; Zhu, Xiao-Lei; Jiang, Li-Li; Liu, Zu-Ming; Yang, Guang-Fu

    2008-03-01

    In order to search novel agrochemicals with higher antifungal activity, a series of new 1,2,4-triazolo[1,5-a]pyrimidine derivatives bearing 1,3,4-oxadiazole moieties were designed and synthesized. Their antifungal activities against Rhizoctonia solani were evaluated in vitro. By determining the EC(50) values of all the newly synthesized compounds and 10 formerly synthesized compounds, compound 8r, 2-((5-(sec-butylthio)-1,3,4-oxadiazol-2-yl)-methylthio)-5-dimethyl-1,2,4-triazolo-[1,5-a]pyrimidine, was found to display the highest antifungal activity (EC(50)=6.57 microg mL(-1)). Based on the quantitative structure-activity relationships analyses, 2-(1-(5-(sec-butylthio)-1,3,4-oxadiazol-2-yl)ethylthio)-5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidine (9j) was designed and synthesized, which was found to display much higher activity (EC(50)=3.34 microg mL(-1)) than compound 8r and the control. To further explore the comprehensive structure-activity relationships, a 3D-QSAR analysis using the method of comparative molecular field analysis (CoMFA) was performed and a statistically reliable model with good predictive power (r(2)=0.929, q(2)=0.588) was achieved on the basis of the common substructure-based alignment. According to the CoMFA model, the structure-antifungal activity relationship was explained reasonably. PMID:17618711

  19. Gaia Theory in Brazilian High School Biology Textbooks

    NASA Astrophysics Data System (ADS)

    Do Carmo, Ricardo Santos; Nunes-Neto, Nei Freitas; El-Hani, Charbel Niño

    2009-04-01

    Gaia theory proposes that a cybernetic system including the biota and the physicochemical environment regulates environmental variables at a global scale, keeping them within a range that makes Earth inhabitable by living beings. One can argue that this theory can play an important role in school science, since it bears upon current environmental problems, contributes to cross-disciplinary learning, and may help students understand the nature of science. Nevertheless, discourses about Gaia include both scientific and non-scientific ideas, and, consequently, this theory has been seen as pseudoscience, or even antiscience, as an unwarranted view, entangled with mysticism. But an informed view about the contributions and risks associated with Gaia as part of science education depends on a general analysis about the treatment of this theory in school knowledge. Here, we offer the first analysis of this sort, critically evaluating how Gaia is addressed in a representative sample of Brazilian textbooks ( n = 18). We present data about the presence or not of Gaia theory among the contents covered by the textbooks, the presence of the claim that Earth is living, whether and how they use analogies to justify this claim, the discussion of evidence for and against Gaia, and the treatment of its relevance to current issues. Gaia theory is explicitly addressed in ca. 39% of the analyzed textbooks. There is a general script that the textbooks that explicitly name the theory follow when discussing Gaia. First, they argue that life affects the environment, and support this argument by means of examples, then, explain what the Gaia theory proposes, discuss evidence in favor either of the idea that Earth is living or Gaia theory in general, introduce one or more analogies to justify the claim of a living Earth, and, finally, offer remarks on the current importance of Gaia. Three analogies used by Lovelock himself were found in the analyzed textbooks, Gaia as a superorganism, the

  20. Pharmacokinetic analysis of trichloroethylene metabolism in male B6C3F1 mice: Formation and disposition of trichloroacetic acid, dichloroacetic acid, S-(1,2-dichlorovinyl)glutathione and S-(1,2-dichlorovinyl)-L-cysteine

    SciTech Connect

    Kim, Sungkyoon; Kim, David; Pollack, Gary M.; Collins, Leonard B.; Rusyn, Ivan

    2009-07-01

    Trichloroethylene (TCE) is a well-known carcinogen in rodents and concerns exist regarding its potential carcinogenicity in humans. Oxidative metabolites of TCE, such as dichloroacetic acid (DCA) and trichloroacetic acid (TCA), are thought to be hepatotoxic and carcinogenic in mice. The reactive products of glutathione conjugation, such as S-(1,2-dichlorovinyl)-L-cysteine (DCVC), and S-(1,2-dichlorovinyl) glutathione (DCVG), are associated with renal toxicity in rats. Recently, we developed a new analytical method for simultaneous assessment of these TCE metabolites in small-volume biological samples. Since important gaps remain in our understanding of the pharmacokinetics of TCE and its metabolites, we studied a time-course of DCA, TCA, DCVG and DCVG formation and elimination after a single oral dose of 2100 mg/kg TCE in male B6C3F1 mice. Based on systemic concentration-time data, we constructed multi-compartment models to explore the kinetic properties of the formation and disposition of TCE metabolites, as well as the source of DCA formation. We conclude that TCE-oxide is the most likely source of DCA. According to the best-fit model, bioavailability of oral TCE was {approx} 74%, and the half-life and clearance of each metabolite in the mouse were as follows: DCA: 0.6 h, 0.081 ml/h; TCA: 12 h, 3.80 ml/h; DCVG: 1.4 h, 16.8 ml/h; DCVC: 1.2 h, 176 ml/h. In B6C3F1 mice, oxidative metabolites are formed in much greater quantities ({approx} 3600 fold difference) than glutathione-conjugative metabolites. In addition, DCA is produced to a very limited extent relative to TCA, while most of DCVG is converted into DCVC. These pharmacokinetic studies provide insight into the kinetic properties of four key biomarkers of TCE toxicity in the mouse, representing novel information that can be used in risk assessment.

  1. Methods of Use of an Online Economics Textbook

    ERIC Educational Resources Information Center

    Miller, Jon R.; Baker-Eveleth, Lori

    2010-01-01

    The rising cost of college textbooks over the last decade provides an opportunity for alternatives. Electronic or online textbooks are an effective substitute to the traditional paper-based textbooks, although students have been slow to transition to the new method. A custom, professor-written online textbook not only addresses the reduction in…

  2. A Campus-Wide E-Textbook Initiative

    ERIC Educational Resources Information Center

    Rickman, Jon T.; Von Holzen, Roger; Klute, Paul G.; Tobin, Teri

    2009-01-01

    At most universities a student typically goes to a bookstore to purchase the textbook recommended by the professor for a course. The student may choose to purchase a new or used textbook, or, as occurs more frequently now, an e-textbook. Nearly 40% of college students choose not to purchase textbooks at all, however, due to the costs. Generally,…

  3. One College's Use of an Open Psychology Textbook

    ERIC Educational Resources Information Center

    Hilton, John, III; Laman, Carol

    2012-01-01

    The high cost of textbooks is of concern not only to college students but also to society as a whole. Open textbooks promise the same educational benefits as traditional textbooks; however, their efficacy remains largely untested. We report on a case study about one community college's adoption of a free online psychology textbook. During the fall…

  4. Introductory Business Textbook Revision Cycles: Are They Getting Shorter?

    ERIC Educational Resources Information Center

    Zinser, Brian; Brunswick, Gary

    2010-01-01

    The rate of textbook revision cycles is examined in light of the recent trend towards more rapid revisions (and adoptions of textbooks). The authors conduct background research to better understand the context for textbook revision cycles and the environmental forces that have been influencing what appears to be more rapid textbook revisions. A…

  5. 25 CFR 36.41 - Standard XIV-Textbooks.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... Standard XIV—Textbooks. (a) Each school shall establish a textbook review committee composed of teachers, parents, and students, and school board members. Appointment to the textbook review committee shall be subject to school board approval. (b) The textbook review committee shall establish a procedure...

  6. Teachers' Use of Textbooks: Practice in Namibian Science Classrooms.

    ERIC Educational Resources Information Center

    Lubben, Fred; Campbell, Bob; Kasanda, Choshi; Kapenda, Hileni; Gaoseb, Noah; Kandjeo-Marenga, Utji

    2003-01-01

    Presents the results of a study that focused on incidences of prescribed textbook usage in Namibian science classrooms. Indicates teacher dominated textbook use and restricted range of textbook references per lesson. States that the teachers used textbooks for diagrams and data and to verify factual information. (CMK)

  7. Comparing Student Perceptions of Textbooks: Does Liking Influence Learning?

    ERIC Educational Resources Information Center

    Gurung, Regan; Landrum, R. Eric

    2012-01-01

    Faculty perceptions of textbook quality, anecdotal posts to listservs, and published ratings frequently determine textbook choice. Although faculty members intend to have students use the textbooks, few published empirical studies assess student opinions. In two studies, students rated widely adopted introductory psychology textbooks on eight…

  8. Are U.S. Textbooks Right about the Religious Right?

    ERIC Educational Resources Information Center

    Romanowski, Michael H.

    Current history textbooks include Christianity when discussing U.S. history. A study systematically examined the content of 10 secondary U.S. history textbooks to evaluate how Christianity is portrayed. Selection of the textbooks was based upon information supplied by the Texas Education Agency and the American Textbook Council and represented the…

  9. Effectiveness of Electronic Textbooks with Embedded Activities on Student Learning

    ERIC Educational Resources Information Center

    Porter, Paula L.

    2010-01-01

    Current versions of electronic textbooks mimic the format and structure of printed textbooks; however, the electronic capabilities of these new versions of textbooks offer the potential of embedding interactive features of web-based learning within the context of a textbook. This dissertation research study was conducted to determine if student…

  10. Readability, Logodiversity, and the Effectiveness of College Science Textbooks

    ERIC Educational Resources Information Center

    Burton, Rebecca S.

    2014-01-01

    Textbooks are required in most introductory college science courses, but students may not be benefitting from the textbooks as much as their instructors might hope. Word use in the textbooks may influence textbook effectiveness. I tested whether either the amount of technical vocabulary or the readability had a significant effect on students'…

  11. Textbooks, Teachers, and Middle School Mathematics Student Achievement

    ERIC Educational Resources Information Center

    Monaghan, Susan R.

    2013-01-01

    The purpose of this study was to extend the research on textbook effectiveness to a situated investigation of a single large urban school district in which middle schools were given a choice in selecting from three textbooks for mathematics instruction: a reform textbook, a commercially produced textbook developed in response to mathematics…

  12. Effects of E-Textbook Instructor Annotations on Learner Performance

    ERIC Educational Resources Information Center

    Dennis, Alan R.; Abaci, Serdar; Morrone, Anastasia S.; Plaskoff, Joshua; McNamara, Kelly O.

    2016-01-01

    With additional features and increasing cost advantages, e-textbooks are becoming a viable alternative to paper textbooks. One important feature offered by enhanced e-textbooks (e-textbooks with interactive functionality) is the ability for instructors to annotate passages with additional insights. This paper describes a pilot study that examines…

  13. EQUATIONS AND THE EQUAL SIGN IN ELEMENTARY MATHEMATICS TEXTBOOKS

    PubMed Central

    Powell, Sarah R.

    2012-01-01

    To promote a relational understanding of the equal sign (=), students may require exposure to a variety of equation types (i.e., 3 = 8 − 5; 2 + 3 = 1 + 4; 9 − 3 = 6). The purpose of this study was to evaluate 8 elementary curricula for degree of exposure to equation types. Across 6 elementary grade levels, curricula were coded for the number of standard and nonstandard equation types appearing within the student textbook. Except in 1 of the 8 curricula, students typically do not receive exposure to nonstandard equation types that promote a relational understanding of the equal sign. An analysis of the accompanying teacher manual for each textbook suggests that students receive minimal instruction on relational definitions of the equal sign, with the majority of instruction occurring in grades K–2 and minimal instruction provided in grades 3–5. PMID:22707760

  14. EQUATIONS AND THE EQUAL SIGN IN ELEMENTARY MATHEMATICS TEXTBOOKS.

    PubMed

    Powell, Sarah R

    2012-06-01

    To promote a relational understanding of the equal sign (=), students may require exposure to a variety of equation types (i.e., 3 = 8 - 5; 2 + 3 = 1 + 4; 9 - 3 = 6). The purpose of this study was to evaluate 8 elementary curricula for degree of exposure to equation types. Across 6 elementary grade levels, curricula were coded for the number of standard and nonstandard equation types appearing within the student textbook. Except in 1 of the 8 curricula, students typically do not receive exposure to nonstandard equation types that promote a relational understanding of the equal sign. An analysis of the accompanying teacher manual for each textbook suggests that students receive minimal instruction on relational definitions of the equal sign, with the majority of instruction occurring in grades K-2 and minimal instruction provided in grades 3-5. PMID:22707760

  15. Students' reasoning in mathematics textbook task-solving

    NASA Astrophysics Data System (ADS)

    Sidenvall, Johan; Lithner, Johan; Jäder, Jonas

    2015-05-01

    This study reports on an analysis of students' textbook task-solving in Swedish upper secondary school. The relation between types of mathematical reasoning required, used, and the rate of correct task solutions were studied. Rote learning and superficial reasoning were common, and 80% of all attempted tasks were correctly solved using such imitative strategies. In the few cases where mathematically founded reasoning was used, all tasks were correctly solved. The study suggests that student collaboration and dialogue does not automatically lead to mathematically founded reasoning and deeper learning. In particular, in the often common case where the student simply copies a solution from another student without receiving or asking for mathematical justification, it may even be a disadvantage for learning to collaborate. The results also show that textbooks' worked examples and theory sections are not used as an aid by the student in task-solving.

  16. Identifying User Interaction Patterns in E-Textbooks

    PubMed Central

    Saarinen, Santeri; Heimonen, Tomi; Turunen, Markku; Mikkilä-Erdmann, Mirjamaija; Raisamo, Roope; Erdmann, Norbert; Yrjänäinen, Sari; Keskinen, Tuuli

    2015-01-01

    We introduce a new architecture for e-textbooks which contains two navigational aids: an index and a concept map. We report results from an evaluation in a university setting with 99 students. The interaction sequences of the users were captured during the user study. We found several clusters of user interaction types in our data. Three separate user types were identified based on the interaction sequences: passive user, term clicker, and concept map user. We also discovered that with the concept map interface users started to interact with the application significantly sooner than with the index interface. Overall, our findings suggest that analysis of interaction patterns allows deeper insights into the use of e-textbooks than is afforded by summative evaluation. PMID:26605377

  17. Journey to Textbook Affordability: An Investigation of Students' Use of eTextbooks at Multiple Campuses

    ERIC Educational Resources Information Center

    Baek, Eun-Ok; Monaghan, James

    2013-01-01

    eTextbooks have steadily and recently more rapidly penetrated the textbook market. In order to effectively support students' learning, it is important to comprehend students' experiences using eTextbooks. This survey study was designed to gain an understanding of students' experiences in using eTextbooks and variables that impact…

  18. Nursing Student Perceptions of Digital Textbooks: A Pilot Study.

    PubMed

    Mennenga, Heidi A

    2016-01-01

    Digital textbooks are increasing in popularity, often resulting from the perception that students demand the use of technology in academics. However, few studies have been done on student perceptions of digital textbooks. A pilot study was conducted with students enrolled in a nursing research course; 123 nursing students participated. This study found that students overwhelmingly preferred print textbooks over digital textbooks. More research needs to be done before assuming students would prefer digital textbooks over print. PMID:27209871

  19. Quantitative phosphoproteomic analysis reveals γ-bisabolene inducing p53-mediated apoptosis of human oral squamous cell carcinoma via HDAC2 inhibition and ERK1/2 activation.

    PubMed

    Jou, Yu-Jen; Chen, Chao-Jung; Liu, Yu-Ching; Way, Tzong-Der; Lai, Chih-Ho; Hua, Chun-Hung; Wang, Ching-Ying; Huang, Su-Hua; Kao, Jung-Yie; Lin, Cheng-Wen

    2015-10-01

    γ-Bisabolene, one of main components in cardamom, showed potent in vitro and in vivo anti-proliferative activities against human oral squamous cell carcinoma (OSCC). γ-Bisabolene activated caspases-3/9 and decreased mitochondrial memebrane potential, leading to apoptosis of OSCC cell lines (Ca9-22 and SAS), but not normal oral fibroblast cells. Phosphoproteome profiling of OSCC cells treated with γ-bisabolene was identified using TiO2-PDMS plate and LC-MS/MS, then confirmed using Western blotting and real-time RT-PCR assays. Phosphoproteome profiling revealed that γ-bisabolene increased the phosphorylation of ERK1/2, protein phosphatases 1 (PP1), and p53, as well as decreased the phosphorylation of histone deacetylase 2 (HDAC2) in the process of apoptosis induction. Protein-protein interaction network analysis proposed the involvement of PP1-HDAC2-p53 and ERK1/2-p53 pathways in γ-bisabolene-induced apoptosis. Subsequent assays indicated γ-bisabolene eliciting p53 acetylation that enhanced the expression of p53-regulated apoptotic genes. PP1 inhibitor-2 restored the status of HDAC2 phosphorylation, reducing p53 acetylation and PUMA mRNA expression in γ-bisabolene-treated Ca9-22 and SAS cells. Meanwhile, MEK and ERK inhibitors significantly decreased γ-bisabolene-induced PUMA expression in both cancer cell lines. Notably, the results ascertained the involvement of PP1-HDAC2-p53 and ERK1/2-p53 pathways in mitochondria-mediated apoptosis of γ-bisabolene-treated cells. This study demonstrated γ-bisabolene displaying potent anti-proliferative and apoptosis-inducing activities against OSCC in vitro and in vivo, elucidating molecular mechanisms of γ-bisabolene-induced apoptosis. The novel insight could be useful for developing anti-cancer drugs. PMID:26194454

  20. Analysis of BRIP1 Variants among Korean Patients with BRCA1/2 Mutation-Negative High-Risk Breast Cancer

    PubMed Central

    Kim, Haeyoung; Cho, Dae-Yeon; Choi, Doo Ho; Jung, Gee Hue; Shin, Inkyung; Park, Won; Huh, Seung Jae; Nam, Seok Jin; Lee, Jeong Eon; Gil, Won Ho; Kim, Seok Won

    2016-01-01

    Purpose The aim of the current study is to assess the spectrum of genetic variation in the BRIP1 gene among Korean high-risk breast cancer patients who tested negative for the BRCA1/2 mutation. Materials and Methods Overall, 235 Korean patientswith BRCA1/2 mutation–negative high-risk breast cancerwere screened for BRIP1 mutations. The entire BRIP1 gene was analyzed using fluorescent-conformation sensitive gel electrophoresis. In silico analysis of BRIP1 variants was performed using PolyPhen-2 and SIFT. Results A total of 20 sequence alterations including 12 exonic and eight intronic variantswere found. Among the 12 exonic variants, 10 were missense and two were silent mutations. No protein-truncating mutation was found among the tested patients. Among the 10 missense variants, four (p.L263F, p.L340F, p.L474P, and p.R848H) were predicted to be pathogenic by both PolyPhen-2 and SIFT, and these variants were found in five patients. Of the four missense variants, p.L263F, p.L474P, and p.R848H localize to regions between the helicase motifs, while p.L340F resides in an iron-sulfur domain of BRIP1. Conclusion No protein-truncating mutation in BRIP1 was found among the tested patients. The contribution of BRIP1 variants is thought to be minor in Korean non-BRCA1/2 high-risk breast cancer. PMID:26790966

  1. For Sale: Subliminal Bias in Textbooks

    ERIC Educational Resources Information Center

    Britton, Gwyneth E.; Lumpkin, Margaret C.

    1977-01-01

    Discusses the fact that, although publishers have acknowledged the problem of sex bias in textbooks in the United States, guidelines lack specifics, timetables, and procedures for monitoring content and enforcing compliance with the guidelines. (MB)

  2. Ideology and 'A' Level Economics Textbooks.

    ERIC Educational Resources Information Center

    Webster, Angela

    1978-01-01

    Reviews economics textbooks frequently used in college level economics courses in England to determine the extent of bias. Topics analyzed include economics as science and ethics, profits, advertising, economic objectives, perfect competition, and nationalized industries. (Author/DB)

  3. The "textbook Gibson": The assimilation of dissidence.

    PubMed

    Costall, Alan; Morris, Paul

    2015-02-01

    We examine how the textbooks have dealt with one of psychology's most eminent dissidents, James Gibson (1904-1979). Our review of more than a hundred textbooks, dating from the 1950s to the present, reveals fundamental and systematic misrepresentations of Gibson. Although Gibson continues to figure in most of the textbooks, his work is routinely assimilated to theoretical positions he emphatically rejected: cue theory, stimulus-response psychology, and nativism. As Gibson's one-time colleague, Ulric Neisser, pointed out, psychologists are especially prone to trying to understand new proposals "by mapping it on to some existing scheme," and warned that when "an idea is really new, that strategy fails" (Neisser, 1990, p. 749). The "Textbook Gibson" is an example of such a failure, and perhaps also of the more general importance of assimilation-"shadow history"-within the actual history of psychology. PMID:25664882

  4. Statistical Content in Middle Grades Mathematics Textbooks

    ERIC Educational Resources Information Center

    Pickle, Maria Consuelo Capiral

    2012-01-01

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

  5. Ground Operations Aerospace Language (GOAL) textbook

    NASA Technical Reports Server (NTRS)

    Dickison, L. R.

    1973-01-01

    The textbook provides a semantical explanation accompanying a complete set of GOAL syntax diagrams, system concepts, language component interaction, and general language concepts necessary for efficient language implementation/execution.

  6. 1,4-Disubstituted-[1,2,3]triazolyl-Containing Analogues of MT-II: Design, Synthesis, Conformational Analysis, and Biological Activity

    PubMed Central

    2015-01-01

    Side chain-to-side chain cyclizations represent a strategy to select a family of bioactive conformations by reducing the entropy and enhancing the stabilization of functional ligand-induced receptor conformations. This structural manipulation contributes to increased target specificity, enhanced biological potency, improved pharmacokinetic properties, increased functional potency, and lowered metabolic susceptibility. The CuI-catalyzed azide–alkyne 1,3-dipolar Huisgen’s cycloaddition, the prototypic click reaction, presents a promising opportunity to develop a new paradigm for an orthogonal bioorganic and intramolecular side chain-to-side chain cyclization. In fact, the proteolytic stable 1,4- or 4,1-disubstituted [1,2,3]triazolyl moiety is isosteric with the peptide bond and can function as a surrogate of the classical side chain-to-side chain lactam forming bridge. Herein we report the design, synthesis, conformational analysis, and functional biological activity of a series of i-to-i+5 1,4- and 4,1-disubstituted [1,2,3]triazole-bridged cyclopeptides derived from MT-II, the homodetic Asp5 to Lys10 side chain-to-side chain bridged heptapeptide, an extensively studied agonist of melanocortin receptors. PMID:25347033

  7. Diode laser jet spectra and analysis of the ν14 fundamental of 1,1,1,2-tetrafluoroethane (HFC-134a)

    NASA Astrophysics Data System (ADS)

    Snels, Marcel; D'Amico, Giuseppe

    2003-10-01

    High resolution infrared spectra have been measured for mixtures of 1,1,1,2-tetrafluoroethane in Ne, expanded in a supersonic planar jet. The ν14 fundamental is an essentially unperturbed C-type band, exhibiting many Δ Kc=±2 transitions. Accurate excited state rotational and distortion constants have been determined from an analysis of about 1250 transitions, by using Watson's Hamiltonian in the S-reduction. A local perturbation has been observed with a crossing at K'a=11 for J' values between 17 and 18, and could be accounted for by a x-Coriolis interaction with a perturbing vibrational level of A' symmetry at about 1205.53(1) cm -1. Due to the very efficient cooling in the jet, the rotational temperature resulted to be about 20 K, and no evidence of hot-band absorption was found.

  8. 1,2-Dichloropropane

    Integrated Risk Information System (IRIS)

    1,2 - Dichloropropane ; CASRN 78 - 87 - 5 Human health assessment information on a chemical substance is included in the IRIS database only after a comprehensive review of toxicity data , as outlined in the IRIS assessment development process . Sections I ( Health Hazard Assessments for Noncarcinoge

  9. 1,2-Dichloroethane

    Integrated Risk Information System (IRIS)

    1,2 - Dichloroethane ; CASRN 107 - 06 - 2 Human health assessment information on a chemical substance is included in the IRIS database only after a comprehensive review of toxicity data , as outlined in the IRIS assessment development process . Sections I ( Health Hazard Assessments for Noncarcinoge

  10. 1,2-Diphenylhydrazine

    Integrated Risk Information System (IRIS)

    1,2 - Diphenylhydrazine ; CASRN 122 - 66 - 7 Human health assessment information on a chemical substance is included in the IRIS database only after a comprehensive review of toxicity data , as outlined in the IRIS assessment development process . Sections I ( Health Hazard Assessments for Noncarcin

  11. 1,2-Dichlorobenzene

    Integrated Risk Information System (IRIS)

    1,2 - Dichlorobenzene ; CASRN 95 - 50 - 1 Human health assessment information on a chemical substance is included in the IRIS database only after a comprehensive review of toxicity data , as outlined in the IRIS assessment development process . Sections I ( Health Hazard Assessments for Noncarcinoge

  12. 1,2-Dibromoethane

    Integrated Risk Information System (IRIS)

    1,2 - Dibromoethane ; CASRN 106 - 93 - 4 Human health assessment information on a chemical substance is included in the IRIS database only after a comprehensive review of toxicity data , as outlined in the IRIS assessment development process . Sections I ( Health Hazard Assessments for Noncarcinogen

  13. The toxicity of 3-chloropropane-1,2-dipalmitate in Wistar rats and a metabonomics analysis of rat urine by ultra-performance liquid chromatography-mass spectrometry.

    PubMed

    Li, Jianshuang; Wang, Sen; Wang, Maoqing; Shi, Wenxiu; Du, Xiaoyan; Sun, Changhao

    2013-11-25

    3-Monochloropropane-1,2-diol(3-MCPD) fatty acid esters can release free 3-MCPD in a certain condition. Free 3-MCPD is a well-known food contaminant and is toxicological well characterized, however, in contrast to free 3-MCPD, the toxicological characterization of 3-MCPD fatty acid esters is puzzling. In this study, toxicological and metabonomics studies of 3-chloropropane-1,2-dipalmitate(3-MCPD dipalmitate) were carried out based on an acute oral toxicity test, a 90-day feeding test and ultra-performance liquid chromatography-mass spectrometry (UPLC-MS) analysis. The LD50 value of 3-MCPD dipalmitate was determined to be 1780 mg/kg body weight (bw) for Wistar rats. The results of the 90-day feeding test in male Wistar rats showed that 3-MCPD dipalmitate caused a significant increase in blood urea nitrogen and creatinine in the high-dose group (267 mg/kg bw/day) compared to control rats. Renal tubular epithelium cell degeneration and renal tubular hyaline cast accumulation were the major histopathological changes in rats administered 3-MCPD dipalmitate. Urine samples obtained after the 90-day feeding test and analyzed by UPLC-MS showed that the differences in metabolic profiles between control and treated rats were clearly distinguished by partial least squares-discriminant analysis (PLS-DA) of the chromatographic data. Five metabolite biomarkers which had earlier and significant variations had been identified, they were first considered to be the early, sensitive biomarkers in evaluating the effect of 3-MCPD dipalmitate exposure, and the possible mechanism of these biomarkers variation was elucidated. The combination of histopathological examination, clinical chemistry and metabolomics analyses in rats resulted in a systematic and comprehensive assessment of the long-term toxicity of 3-MCPD dipalmitate. PMID:24140137

  14. Quantifying mineral abundances of complex mixtures by coupling spectral deconvolution of SWIR spectra (2.1-2.4 μm) and regression tree analysis

    USGS Publications Warehouse

    Mulder, V.L.; Plotze, Michael; de Bruin, Sytze; Schaepman, Michael E.; Mavris, C.; Kokaly, Raymond F.; Egli, Markus

    2013-01-01

    This paper presents a methodology for assessing mineral abundances of mixtures having more than two constituents using absorption features in the 2.1-2.4 μm wavelength region. In the first step, the absorption behaviour of mineral mixtures is parameterised by exponential Gaussian optimisation. Next, mineral abundances are predicted by regression tree analysis using these parameters as inputs. The approach is demonstrated on a range of prepared samples with known abundances of kaolinite, dioctahedral mica, smectite, calcite and quartz and on a set of field samples from Morocco. The latter contained varying quantities of other minerals, some of which did not have diagnostic absorption features in the 2.1-2.4 μm region. Cross validation showed that the prepared samples of kaolinite, dioctahedral mica, smectite and calcite were predicted with a root mean square error (RMSE) less than 9 wt.%. For the field samples, the RMSE was less than 8 wt.% for calcite, dioctahedral mica and kaolinite abundances. Smectite could not be well predicted, which was attributed to spectral variation of the cations within the dioctahedral layered smectites. Substitution of part of the quartz by chlorite at the prediction phase hardly affected the accuracy of the predicted mineral content; this suggests that the method is robust in handling the omission of minerals during the training phase. The degree of expression of absorption components was different between the field sample and the laboratory mixtures. This demonstrates that the method should be calibrated and trained on local samples. Our method allows the simultaneous quantification of more than two minerals within a complex mixture and thereby enhances the perspectives of spectral analysis for mineral abundances.

  15. The Development of Statistics Textbook Supported with ICT and Portfolio-Based Assessment

    NASA Astrophysics Data System (ADS)

    Hendikawati, Putriaji; Yuni Arini, Florentina

    2016-02-01

    This research was development research that aimed to develop and produce a Statistics textbook model that supported with information and communication technology (ICT) and Portfolio-Based Assessment. This book was designed for students of mathematics at the college to improve students’ ability in mathematical connection and communication. There were three stages in this research i.e. define, design, and develop. The textbooks consisted of 10 chapters which each chapter contains introduction, core materials and include examples and exercises. The textbook developed phase begins with the early stages of designed the book (draft 1) which then validated by experts. Revision of draft 1 produced draft 2 which then limited test for readability test book. Furthermore, revision of draft 2 produced textbook draft 3 which simulated on a small sample to produce a valid model textbook. The data were analysed with descriptive statistics. The analysis showed that the Statistics textbook model that supported with ICT and Portfolio-Based Assessment valid and fill up the criteria of practicality.

  16. Investigating grade nine textbook problems for characteristics related to mathematical literacy

    NASA Astrophysics Data System (ADS)

    Rafiepour Gatabi, Abolfazl; Stacey, Kaye; Gooya, Zahra

    2012-12-01

    This study presents a content analysis of the new Iranian Grade 9 mathematics textbook and two Australian Year 9 mathematics textbooks, examining the extent to which the problems show characteristics associated in the literature with promoting mathematical literacy. The new Iranian book was produced to meet a range of needs including several well aligned with mathematical literacy for all students. Australia was selected as the comparison country because of its relatively high international achievement in mathematical literacy. Three comparable chapters in each book were analysed for these characteristics. When considering the percentages of problems showing each characteristic, there was considerable similarity between the textbooks. However, the Australian mathematics textbooks contain many more problems than the Iranian textbook and each chapter includes problems in a diverse range of contexts and the mathematical tasks range from simple applications of formulas to real world modelling although of a constrained nature. With many fewer problems, the Iranian textbook has considerably less diversity of context and very little opportunity for students to engage in mathematical modelling, the key process of mathematical literacy.

  17. Positioning genomics in biology education: content mapping of undergraduate biology textbooks.

    PubMed

    Wernick, Naomi L B; Ndung'u, Eric; Haughton, Dominique; Ledley, Fred D

    2014-12-01

    Biological thought increasingly recognizes the centrality of the genome in constituting and regulating processes ranging from cellular systems to ecology and evolution. In this paper, we ask whether genomics is similarly positioned as a core concept in the instructional sequence for undergraduate biology. Using quantitative methods, we analyzed the order in which core biological concepts were introduced in textbooks for first-year general and human biology. Statistical analysis was performed using self-organizing map algorithms and conventional methods to identify clusters of terms and their relative position in the books. General biology textbooks for both majors and nonmajors introduced genome-related content after text related to cell biology and biological chemistry, but before content describing higher-order biological processes. However, human biology textbooks most often introduced genomic content near the end of the books. These results suggest that genomics is not yet positioned as a core concept in commonly used textbooks for first-year biology and raises questions about whether such textbooks, or courses based on the outline of these textbooks, provide an appropriate foundation for understanding contemporary biological science. PMID:25574293

  18. Addition and Subtraction Word Problems in Greek Grade A and Grade B Mathematics Textbooks: Distribution and Children's Understanding

    ERIC Educational Resources Information Center

    Despina, Desli; Harikleia, Loukidou

    2014-01-01

    Mathematics textbooks are a predominant resource in primary school in Greece, as well as in many other countries. The present study reports on both a content analysis of Greek mathematics textbooks with regard to the types of word problems represented in them and a quantitative analysis of children's achievement in these problems. For the…

  19. Textbook Multigrid Efficiency for Leading Edge Stagnation

    NASA Technical Reports Server (NTRS)

    Diskin, Boris; Thomas, James L.; Mineck, Raymond E.

    2004-01-01

    A multigrid solver is defined as having textbook multigrid efficiency (TME) if the solutions to the governing system of equations are attained in a computational work which is a small (less than 10) multiple of the operation count in evaluating the discrete residuals. TME in solving the incompressible inviscid fluid equations is demonstrated for leading-edge stagnation flows. The contributions of this paper include (1) a special formulation of the boundary conditions near stagnation allowing convergence of the Newton iterations on coarse grids, (2) the boundary relaxation technique to facilitate relaxation and residual restriction near the boundaries, (3) a modified relaxation scheme to prevent initial error amplification, and (4) new general analysis techniques for multigrid solvers. Convergence of algebraic errors below the level of discretization errors is attained by a full multigrid (FMG) solver with one full approximation scheme (FAS) cycle per grid. Asymptotic convergence rates of the FAS cycles for the full system of flow equations are very fast, approaching those for scalar elliptic equations.

  20. Textbook Multigrid Efficiency for Leading Edge Stagnation

    NASA Technical Reports Server (NTRS)

    Diskin, Boris; Thomas, James L.; Mineck, Raymond E.

    2004-01-01

    A multigrid solver is defined as having textbook multigrid efficiency (TME) if the solutions to the governing system of equations are attained in a computational work which is a small (less than 10) multiple of the operation count in evaluating the discrete residuals. TME in solving the incompressible inviscid fluid equations is demonstrated for leading- edge stagnation flows. The contributions of this paper include (1) a special formulation of the boundary conditions near stagnation allowing convergence of the Newton iterations on coarse grids, (2) the boundary relaxation technique to facilitate relaxation and residual restriction near the boundaries, (3) a modified relaxation scheme to prevent initial error amplification, and (4) new general analysis techniques for multigrid solvers. Convergence of algebraic errors below the level of discretization errors is attained by a full multigrid (FMG) solver with one full approximation scheme (F.4S) cycle per grid. Asymptotic convergence rates of the F.4S cycles for the full system of flow equations are very fast, approaching those for scalar elliptic equations.