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1

An Active-Learning Assignment Requiring Pharmacy Students to Write Medicinal Chemistry Examination Questions  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Objectives. To implement and assess the effectiveness of an assignment requiring doctor of pharmacy (PharmD) students to write examination questions for the medicinal chemistry sections of a pharmacotherapeutics course.

Kolluru, Srikanth

2012-01-01

2

Compliance with Required Reading Assignments.  

Science.gov (United States)

Investigates compliance with required reading assignments from 1981 to 1997 (excluding 1984 and 1985) in psychology classes. Finds that compliance declined dramatically since 1981 and compliance improved as a function of increasing class level. Suggests a renewed emphasis on compliance with required reading assignments and an incorporation of…

Burchfield, Colin M.; Sappington, John

2000-01-01

3

Engineering Communication: Student Reading Assignment  

Science.gov (United States)

This handout, from Justin Foss at the Engineering Technology Pathways project, introduces students to the "four relationships to Engineering Communication to become successful." Those steps are: Mathematical Expression, Communication Skills, 2-Dimensional Drafting and Sketching, and 3-Dimensional Modeling. Each step is elaborated with examples, and the reading is followed by a list of sources for more information. This is an excellent introductory lecture or reading for students just entering the engineering design classroom.

Foss, Justin

2010-10-07

4

A Linear Programming Model for Assigning Students to Attendance Centers.  

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A linear programing model and procedures for optimal assignment of students to attendance centers are presented. An example of the use of linear programing for the assignment of students to attendance centers in a particular school district is given. (CK)

Ontjes, Robert L.

5

Writing in Business Courses: An Analysis of Assignment Types, Their Characteristics, and Required Skills  

Science.gov (United States)

This study categorized writing assignments required in undergraduate and graduate business courses and examined the characteristics of as well as skills needed for completing the assignments. Data sources included 95 course syllabi and handouts on writing assignments, 12 student writing samples, and six interviews with business faculty. Data…

Zhu, Wei

2004-01-01

6

WebAssign: Assessing Your Students' Understanding Continuously  

Science.gov (United States)

Motivating students to learn is a constant challenge for faculty. Technology can play a significant role. One such solution is WebAssign — a web-based homework system that offers new teaching and learning opportunities for educators and their students. WebAssign delivers, collects, grades, and records customized homework assignments over the Internet. Students get immediate feedback with credit and instructors can implement "Just-in-Time" teaching. In this talk, I will describe how assignments can be generated with different numerical values for each question, giving each student a unique problem to solve. This feature encourages independent thinking with the benefit of collaborative learning. Example assignments taken from textbook questions and intellectually engaging Java applet simulations will be shown. Studies and first-hand experience on the educational impact of using WebAssign will also be discussed.

Risley, John S.

1999-11-01

7

Assigning Wikipedia editing: Triangulation toward understanding university student engagement  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Professors across the United States participated in the first direct effort by the Wikimedia Foundation, the non-profit that supports Wikipedia, to engage the academic community and integrate Wikipedia into a class assignment. Three project participants, from different areas of study, conducted independent research into university student motivations for a Wikipedia assignment. We triangulate those data in this paper to describe how student motivations differ for a Wikipedia assignment from a...

Roth, Amy Wikimedia Foundation; Davis, Rochelle Georgetown University; Carver, Brian Uc Berkeley

2013-01-01

8

Student Perceptions of the Benefits of a Learner-Based Writing Assignment in Organic Chemistry  

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A writing assignment to increase student understanding of and interest in practical applications of organic chemistry is described. Students were required to study a pharmaceutical or other organic compound and perform a qualitative risk assessment on the chemical. Student perceptions of the benefits of the paper were generally positive. (Contains…

Ablin, Lois

2008-01-01

9

Engaging Introductory Writing Students through Facebook Assignments  

Science.gov (United States)

Undergraduates' use of social networking sites has been well documented in both the popular press and in academic publications. Research suggests that students spend, on average, 30 minutes a day engaged in a predictable routine of social networking. Correspondingly, on the first author's previous campus, she had frequently observed many of the…

Lovell, Elyse D'nn; Palmer, Betsy

2013-01-01

10

A stepwise multi-assignment spreadsheet model to select student teams  

Directory of Open Access Journals (Sweden)

Full Text Available Student projects play a big role in engineering and management education. Most projects require students to work in teams, which allow students to practice their technical knowledge, foster the development of personal leadership skills, and teach the value of team accomplishments. One of the challenges of administering team projects is to create the best team compositions that give all teams the equal chance of success while maximizing interaction between students. The instructor should strive to balance each team so the team capabilities are as even as possible. Instructors also should take into account the performance of each student throughout the semester, when recreating teams for upcoming assignments. This paper presents a stepwise optimization that continues throughout the semester as the teams evolve from one assignment to another. Results show that this method can expose students to approximately 50% of their classmates within four team assignments and reasonable team grade variance.

Bilge Gokhan Celik

2013-06-01

11

Open Ended Laboratory (OEL Assignment as Tool Imparting Generic Skills for Engineering Students  

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Full Text Available Generic skills play a vital role in increasing the employability and marketability of a student. As for the Department of Chemical and Process Engineering, UKM, some of these skills are imparted in the assignment given to students called Open Ended Laboratory (OEL. In this OEL assignment, students are required to propose an experiment title based on the general topic given for that particular semester. The students, working in groups of 3 to 4 students, need to determine the objectives, apparatus and methods as well as execute the experiment. A report including results, discussion, conclusion and references is submitted for evaluation. The final presentation of students’ work is organised in a competition poster presentation format. Skills such as communication (oral and written, organisation, teamwork, innovation and creativity were evaluated for this assignment. We discovered that these skills can be nurtured by looking at the marks given by the judges and peer assessment matrices.

Noorhisham Tan Kofli

2012-12-01

12

Evidence for occupational therapy interventions: a student educational assignment.  

Science.gov (United States)

As an educational assignment, two classes of graduate students who had recently completed Level II fieldwork listed interventions they had either witnessed or implemented at their sites. Interventions were then randomly assigned to a different group of graduate students in an upper level research class. Searching the literature from the past 10 years, students located the literature providing evidence for the efficacy of these interventions and categorized them according to five hierarchical levels of effectiveness. Results across both classes indicated support at the two highest levels (I and II) for the following interventions: Constraint-Induced Treatment; Hippotherapy; Proprioceptive Neuromuscular Facilitation and Multisensory Handwriting Programs. Students indicated that this educational experience greatly helped to improve their understanding of research and emphasized the importance of researching the literature supporting interventions as they relate to current practice. PMID:23927651

Lederer, Jeffrey M

2005-01-01

13

Freshmen Housing Assignments: A Road to Student Retention.  

Science.gov (United States)

Examined the influence of college housing assignments on retention of freshmen science majors, in a study of 103 students housed in proximity to other science majors and 43 housed at random. Results showed freshmen science majors housed near other science majors were more likely to be retained. (JAC)

Chapple, John D.

1984-01-01

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Student Lead Discussions: Articles from the Literature and Final Writing Assignment  

Science.gov (United States)

Assignment #1 Student-led discussion of articles from the literature We assign one or two groups of two or three students to each of four or four or five topics related to climate change, and provide each group a set of related articles from the literature on their assigned topic. The group will lead a one-hour, in-class discussion on the topic, with up to a dozen students and one instructor in each discussion. In preparation for the discussion, the discussion co-leaders must collectively write a set of "Reading Questions" about each assigned article, which help readers focus on the key points made by the articles and can serve as points of discussion. The other students participating in the discussion must read the articles with the aid of these Reading Questions and annotate the portions of the articles that address the Reading Questions. We (instructors) evaluate the Reading Questions written by the co-leaders (they receive a shared grade for these), and we also check the annotated articles turned in by the other discussion participants to ensure that they prepared to participate in the discussion (they receive individual grades this). Discussion co-leaders each receive a grade for the quality of their discussion leadership. The purpose of this assignment is in part to help students prepare for their final writing assignment by requiring that they read a set of articles closely enough to help other students discuss and understand the key points, and get feedback about their level of understanding, up to a month before the final paper on the topic is due. The immediate outcome that we expect from this assignment is a demonstration that students can read the assigned articles critically, identify and articulate the key points, and help engage other students in a discussion about the articles, including conceptually important or difficult aspects of them. Assignment #2: Final writing assignment For this assignment, which follows from the previous one, students are asked to: locate two or more significant additional articles that relate closely to the articles on which they based the discussion that they co-led; and write a 8-12 page (typed, double spaced) overview of the history and current state of our scientific understanding about the topic(s) covered by the set of discussion articles, based on the articles themselves plus relevant material presented in class or in assigned reading. In particular, wherever justified by the source material, students should try to include the following in the narrative: initial observations/evidence; initial hypotheses posed to account for initial observations/evidence (including external forcings and feedbacks); subsequent observations/evidence that have confirmed or disproved earlier hypotheses; technology that made making observations/gathering evidence possible and led to breakthroughs in understanding; scientific controversies and how they played out historically or are currently playing out; current understanding and remaining uncertainties. The outcome should be a written demonstration of the student's ability to analyze and synthesize a set of articles from the literature and supporting materials provided in class to describe the history, current state, and unresolved aspects of our scientific understanding of an interdisciplinary aspect of climate change.

Dempsey, Dave

15

Improving Geoscience Learning and Increasing Student Engagement Using Online Interactive Writing Assignments with Calibrated Peer Review.  

Science.gov (United States)

Peer review is a hallmark of the publication process for scientific research, yet it is rarely used as a pedagogical approach in university geoscience courses. Learning outcomes for university geoscience courses include content knowledge and critical thinking and analysis skills, and often include written communication of scientific issues or concepts. Because lecture and memorization is not the most effective learning approach for many students, instructors are increasingly exploring teaching approaches that involve active engagement. In this context, writing assignments that engage students in using content, constructing arguments, and critiquing other students' work are highly desirable. However, many of us struggle with extensive writing requirements in our courses because the workload associated with having the instructor provide detailed comments on writing is daunting, especially in large-enrollment courses, and organizing effective peer review by students is very challenging. Calibrated Peer Review (CPR) is a web-based program that involves students in writing and in reviewing each other's writing. It is designed to allow for more involved writing and feedback experiences with much less instructor time. Here we report on the results of a qualitative-methods analysis of narrative survey responses from students using CPR in an introductory geoscience class. In addition to an impact on the students' writing and their understanding of what goes in to effective writing, the results indicate that CPR acted as reinforcement for content learning, and an impetus for gaining a deeper understanding of content material. It allowed students to see how other students explained and analyzed content, and to check their understanding of a topic in relation to other students in the class. Not surprisingly, the instructor reported that students performed far better on exam questions that tested knowledge covered by CPR assignments.

Harbor, Jon

2014-05-01

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Middle School Black and White Student Assignment to Disciplinary Consequences: A Clear Lack of Equity  

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Disciplinary consequences assigned to all Texas middle school Black and White students ("n" = 172,551 Grade 6 students; 173,671 Grade 7 students; 175,730 Grade 8 students) for the 2008-2009 school year were analyzed to determine the extent to which statistically significant differences were present between the proportion of Black…

Hilberth, Michele; Slate, John R.

2014-01-01

17

Evaluation of a Second-Tier Classroom-Based Assignment Completion Strategy for Middle School Students in a Resource Context  

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Students who struggle academically often struggle with assignment completion. Poor assignment completion is attributable to both student cognitive and motivational barriers. This study evaluates the effectiveness of an intervention designed to improve assignment completion for middle school students who struggle academically. Seventh graders with…

Ness, Bryan Michael; Sohlberg, McKay Moore; Albin, Richard W.

2011-01-01

18

Lights, Camera, Action! Learning about Management with Student-Produced Video Assignments  

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In this article, we present a proposal for fostering learning in the management classroom through the use of student-produced video assignments. We describe the potential for video technology to create active learning environments focused on problem solving, authentic and direct experiences, and interaction and collaboration to promote student

Schultz, Patrick L.; Quinn, Andrew S.

2014-01-01

19

Who Assigns the Most ICT Activities? Examining the Relationship between Teacher and Student Usage  

Science.gov (United States)

The expansion of information and communication technology (ICT) infrastructure in schools is expected to promote learning. To what extent teachers are utilizing the new ICT tools to engage students in learning activities remains a question. This study reports what kind of activities teachers are likely to assign students, and what type of teachers…

Hsu, Shihkuan

2011-01-01

20

Using the "write" resources: nursing student evaluation of an interdisciplinary collaboration using a professional writing assignment.  

Science.gov (United States)

Nursing students need the necessary resources to successfully complete a professional paper writing assignment. The purpose of this article is to describe resource support and evaluation strategies used in a professional paper writing assignment in a baccalaureate nursing program. The impetus for the study is to address the need for nursing faculty to move students toward writing proficiency while improving their information management skills. Students need resources to successfully complete professional papers due to the need for mining relevant professional sources, assistance with editing, and refinement of paper gained through peer feedback. Methods include evaluation of the interdisciplinary resource collaboration with campus librarians (information literacy), campus writing center tutorial oversight, and peer reviewer support and feedback. Student evaluation of the teaching strategy found the resources helpful for completion of the writing assignment and the collaborative learning with campus colleagues and writing experts beneficial. PMID:21956258

McMillan, Libba Reed; Raines, Kimberly

2011-12-01

 
 
 
 
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"Why bother so incredibly much?": student perspectives on PISA science assignments  

Science.gov (United States)

Large-scale assessment, such as the Programme for International Assessment (PISA), plays an increasingly important role in current educational practice and politics. However, many scholars have questioned the validity and reliability of the tests and the extent to which they actually constitute trustworthy representations of students' knowledge. In the light of such critical voices the present article adopts a sociocultural perspective of human knowledge and action in order to explore the encounters between students and the science test assignments with which their knowledge is tested. Of particular interest in this study are the described "real-life situations" presented as the relevant background in which scientific literacy is assessed in PISA. According to the sociocultural theoretical onset the methodology used to approach the students' meaning making of the image of science as portrayed in the test were collaborative situations in which students work in small groups with units of PISA assignments, enabling a study of student-assignment encounters in action. The data we worked with consists of video-recordings from 71 Swedish 15-year-old students working with three released units from the PISA science test. According to our analysis, the "real-life situations" described in the test emerge as problematic in the students' meaning-making. This is demonstrated for instance by the students' positioning themselves as being different from and opposed to the fictional pictured students who appear in the backstories of the test. This article provides examples of how the scientific and academic language used by the fictional students in the assignments mediates distance and resistance among the students. The fictional students' use of strict scientific language and methods in day-to-day life situations leads them to be perceived as "little scientists" and as elite stereotypes of the scientific culture. We conclude that, by using assignments of this type, measurements of students' knowledge in science run the risk of becoming a measurement of cultural consistency regarding how well students will overcome the hurdles of scientific cultures. We mean that all though understanding the scientific culture is an important goal for science education, there is a problem that the assessment organizations communicate the results as representations of students' knowledge in science. This study adheres to research that advises caution in not over-interpreting the PISA results and stresses that understanding students' "knowledge" about science is much more complex than what is communicated by the international assessment organizations.

Serder, Margareta; Jakobsson, Anders

2014-01-01

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Using Cloud collaboration for writing assignments by students with disabilities: a case study using action research  

Directory of Open Access Journals (Sweden)

Full Text Available Though separated by geographical distance, a student with disabilities, his advisor, and his writing coach consorted in the Cloud using Google applications to achieve a writing goal. Our scenario demonstrates how emerging technologies can bridge transactional distance and “virtually” supplant face-to-face conferencing around a college writing assignment. Individual levels of technical acumen with digital technology evolved to bridge the psychological and communication space between the student and his instructors. As a result, the telecollaborators developed an efficient coaching process adaptable for all students who need assistance in revising college writing assignments at a distance. Action research frames our discussion of the Cloud collaboration and provides a scaffold for student autonomy. The advantages as well and disadvantages of Cloud collaboration are outlined with reference to the National Institute of Standards of Technology definition of Cloud Computing and the Seven Principles of Universal Course Design.http://dx.doi.org/10.5944/openpraxis.6.1.79

Kjrsten Keane

2014-02-01

23

Assigning students to publish on the web: Examples, hurdles, and needs  

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Full Text Available Assign students to create a website, video, or podcast, and they can become more engaged with content and more capable in communication, teamwork, critical thinking, and ethics. That is the promise. Still needed are documentation and dissemination of effective teaching approaches and suitable platforms to handle inevitable copyright issues. We characterise these needs here through a case study of one web publishing assignment in science that has run since 2003, brief descriptions of other new media assignments being undertaken by science academics in Australia, and the attractions and concerns thattheir colleagues voice. The discussion points to a critical question, the level of commitment of university academics to preparing their graduates to handle the complexity of relationships with stakeholders that the web can readily present. Are lecturers ready to take on the preparation of students to employ digital media to relate to audiences outside the university?

Lloyd DAVIS

2012-05-01

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Nursing students gain tools for knowledge utilisation through a work and research integrated learning assignment – a qualitative study  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Background: By integrating education, research and collaboration with society, in a learning assignment, the level of nursing students learning can be enhanced. Aim: The purpose of this study was to explore nursing students’ experiences of participating in a work and research integrated learning assignment during their clinical practice courses. Methods: At the end of their nursing training, in...

Albert Westergren; Ellinor Edfors

2013-01-01

25

When teacher-centered instructors are assigned to student-centered classrooms  

Science.gov (United States)

Technology-rich student-centered classrooms such as SCALE-UP and TEAL are designed to actively engage students. We examine what happens when the design of the classroom (conventional or teacher-centered versus student-centered classroom spaces) is consistent or inconsistent with the teacher's epistemic beliefs about learning and teaching (traditional or teacher-centered versus student-centered pedagogies). We compare two types of pedagogical approaches and two types of classroom settings through a quasiexperimental 2×2 factorial design. We collected data from 214 students registered in eight sections of an introductory calculus-based mechanics course given at a Canadian publicly funded two-year college. All students were given the Force Concept Inventory at the beginning and at the end of the 15-week-long course. We then focused on six teachers assigned to teach in the student-centered classroom spaces. We used qualitative observations and the Approaches to Teaching Inventory (ATI), a self-reported questionnaire, to determine the teachers' epistemic beliefs (teacher-centered or student-centered) and how these beliefs affected their use of the space and their students' conceptual learning. We report four main findings. First, the student-centered classroom spaces are most effective when used with student-centered pedagogies. Second, student-centered classrooms are ineffective when used with teacher-centered pedagogies and may have negative effects for students with low prior knowledge. Third, we find a strong correlation between six instructors' self-reported epistemic beliefs of student centeredness and their classes' average normalized gain (r =0.91; p =0.012). Last, we find that some instructors are more willing to adopt student-centered teaching practices after using student-centered classroom spaces. These data suggest that student-centered classrooms are effective only when instructors' epistemic framework of teaching and learning is consistent with a student-centered pedagogy. However, the use of the student-centered classrooms may change instructors' epistemic frameworks over time. Further research should focus on how to better support teachers with shifting epistemic frameworks as well as helping students with lower prior knowledge in student-centered classroom spaces.

Lasry, Nathaniel; Charles, Elizabeth; Whittaker, Chris

2014-06-01

26

Student Patterns in Completing General Education Requirements.  

Science.gov (United States)

Student choices in completing recently initiated general education distribution requirements at a public four-year college were studied in 1982. The bachelor of arts degree requirements consist of two mathematics courses, three natural science courses, three social science courses, three humanities courses, and a two-course Western heritage…

Suskie, Linda Michaels; Eckstein, Mark A.

27

Evolution of Various Library Instruction Strategies: Using Student Feedback to Create and Enhance Online Active Learning Assignments  

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Full Text Available This case study traces the evolution of library assignments for biological science students from paper-based workbooks in a blended (hands-on workshop to blended learning workshops using online assignments to online active learning modules which are stand-alone without any face-to-face instruction. As the assignments evolved to adapt to online learning supporting materials in the form of PDFs (portable document format, screen captures and screencasting were embedded into the questions as teaching moments to replace face-to-face instruction. Many aspects of the evolution of the assignment were based on student feedback from evaluations, input from senior lab demonstrators and teaching assistants, and statistical analysis of the students’ performance on the assignment. Advantages and disadvantages of paper-based and online assignments are discussed. An important factor for successful online learning may be the ability to get assistance.

Marcie Lynne Jacklin

2013-06-01

28

A Simple Assignment that Enhances Students' Ability to Solve Organic Chemistry Synthesis Problems and Understand Mechanisms  

Science.gov (United States)

Organic chemistry students typically struggle with the retrosynthetic approach to solving synthesis problems because most textbooks present the chemistry grouped by "reactions of the functional group". In contrast, the retrosynthetic approach requires the student to envision "reactions that yield the functional group". A second challenge is the…

Teixeira, Jennifer; Holman, R. W.

2008-01-01

29

The Impact of a Collaborative Wikipedia Assignment on Teaching, Learning, and Student Perceptions in a Teacher Education Program  

Science.gov (United States)

This study explored students' perceptions and behaviors of public wiki use during a collaborative Wikipedia assignment in a graduate technology and literacy education course. Results confirmed that the majority of students had an overall positive experience posting content on Wikipedia. Students learned how to use Wikipedia through collaborative…

Bravo, Vanessa J.; Young, Michael F.

2011-01-01

30

Evolution of Various Library Instruction Strategies: Using Student Feedback to Create and Enhance Online Active Learning Assignments  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This case study traces the evolution of library assignments for biological science students from paper-based workbooks in a blended (hands-on) workshop to blended learning workshops using online assignments to online active learning modules which are stand-alone without any face-to-face instruction. As the assignments evolved to adapt to online learning supporting materials in the form of PDFs (portable document format), screen captures and screencasting were embedded into the questions as te...

2013-01-01

31

14 CFR 61.87 - Solo requirements for student pilots.  

Science.gov (United States)

...2009-01-01 false Solo requirements for student pilots. 61.87 Section 61.87 Aeronautics...FLIGHT INSTRUCTORS, AND GROUND INSTRUCTORS Student Pilots § 61.87 Solo requirements for student pilots. (a) General. A...

2009-01-01

32

Grid Computing Portlets Development Assignment  

Science.gov (United States)

Grid Computing Portlets Development Assignment - The purpose of this assignment is to show how to create and test a portlet using the Gridsphere Portal. In the process of doing that, the student will also learn how to install Gridsphere and other required packages.

Ferner, Clayton; Wilkinson, Barry

2011-06-30

33

Nursing students gain tools for knowledge utilisation through a work and research integrated learning assignment – a qualitative study  

Directory of Open Access Journals (Sweden)

Full Text Available Background: By integrating education, research and collaboration with society, in a learning assignment, the level of nursing students learning can be enhanced. Aim: The purpose of this study was to explore nursing students’ experiences of participating in a work and research integrated learning assignment during their clinical practice courses. Methods: At the end of their nursing training, in their sixth semester, five nursing students were recruited to the study and interviewed after which the texts of interviews were analysed using content analysis. The participants had been involved in two studies, one during their second semester, where the risk of falling was assessed, and one during their sixth semester where the risk for under nutrition was assessed. Results: The students experienced that the two assignments enhanced their learning in how to work as a foreman/supervisor, how to inform and engage in dialogue, about using risk assessment, and further, gave them the opportunity to meet the people behind the diagnosis. Through assignments they could also identify the need for knowledge within the study focus, for instance, the risks for falling or the risk of undernourishment. Further, they described how they tried to live up to the ethical standards and that they had learned about using a scientific approach in their work. Conclusion: It is possible to integrate Research, Education and Collaboration in a learning assignment during Nursing education (RECN-assignment by allowing nursing students to participate in an actual research project during their work integrated learning courses. Such an approach enhances nursing students learning about research and the area being studied in the actual research project.

Albert Westergren

2013-01-01

34

Required/Elective Student Differences in Course Evaluations  

Science.gov (United States)

This study shows that college students taking a course as an elective have a significantly different perception of the course and the instructor than do students taking the same course as a requirement. (Author/RM)

Landis, Larry M.; Pirro, Ellen B.

1977-01-01

35

Students' Perception of Homework Assignments and What Influences Their Ideas  

Science.gov (United States)

Authors have researched the effects of homework, but few studies have delved into the idea of students' attitude towards homework. Consequently, students' perception of homework, the principal participants, remains largely unknown. Students' experience in homework that started as early as elementary school has influenced their ideas…

Letterman, Denise

2013-01-01

36

Assigning Students in Group Work Projects. Can We Do Better than Random?  

Science.gov (United States)

Discussion of group work projects in higher education focuses on a comparison of the performance of student groups formed randomly, with those formed using the Honey and Mumford learning styles questionnaire. Describes results that indicate no significant difference in student performances and considers the relationship to the Kolb model.…

Huxham, Mark; Land, Ray

2000-01-01

37

Social Work Students and Self-Care: A Model Assignment for Teaching  

Science.gov (United States)

The literature reveals scant research on self-care practices among social work students; yet self-care is vital as students prepare to be practitioners who are not only effective in working with all aspects of the clients' total selves, but who are themselves healthy. They are not prepared to be good practitioners unless they have first learned to…

Moore, Sharon E.; Bledsoe, Linda K.; Perry, Armon R.; Robinson, Michael A.

2011-01-01

38

The Random Assignment of Students into Elementary Classrooms: Implications for Value-Added Analyses and Interpretations  

Science.gov (United States)

Value-added models (VAMs) are used to measure changes in student achievement on large-scaled standardized test scores from year to year. When aggregated, VAM estimates are used to measure teacher effectiveness and hold teachers accountable for the value they purportedly add to or detract from student learning and achievement. In this study,…

Paufler, Noelle A.; Amrein-Beardsley, Audrey

2014-01-01

39

The Implicit Association Test as a Class Assignment: Student Affective and Attitudinal Reactions  

Science.gov (United States)

The Implicit Association Test (IAT) is a popular means of examining "hidden" biases. However, some express concerns about classroom use of the IAT, citing students' potentially negative affective reactions to taking the IAT and discovering their implicit biases. To investigate the validity of this criticism, 35 social psychology students completed…

Morris, Kathryn A.; Ashburn-Nardo, Leslie

2010-01-01

40

Activity Based Physics Alternative Homework Assignments  

Science.gov (United States)

This resource is a collection of introductory physics homework assignments developed as an alternative to traditional textbook exercises. These assignments were designed for use with the Activity-Based Physics instructional method (ABP). Students use observational skills and mathematical modeling, combined with basic physics, to solve problems related to a single situation, such as riding a bicycle or tailgating while driving. Each assignment integrates a variety of concepts and requires students to establish cause and effect relationships. Assignments are available in the following subject categories: mechanics, electricity and magnetism, and waves.

Vick, K.; Redish, Edward F.; Cooney, Patrick

2008-11-21

 
 
 
 
41

Assessing Business Communication Assignments of English-as-Second-Language Students.  

Science.gov (United States)

Describes a nationwide survey of business communication teachers, soliciting input on how English-as-a-second language students' written communication skills were assessed. Makes comparisons based upon teachers' gender, age, number of years of teaching experience, and geographic location where they teach. Indicates that business communication…

Lewis, Stephen D.; McGrew, Linda G.; Adams, C. Nathan

2002-01-01

42

Information Literacy Skills: Teacher and Student Viewpoints. A review of: Herring, James E. “A Critical Investigation of Students’ and Teachers’ View of the Use of Information Literacy Skills in School Assignments.” School Library Media Research 9 (2006. 14 May 2007 .  

Directory of Open Access Journals (Sweden)

Full Text Available Objective – To examine student and teacher views of information literacy skills in school assignments in order to determine: 1 To what extent did students value the use of a research model booklet (PLUS? 2 How confident were the students about doing a good assignment and did the PLUS booklet affect their confidence? 3What benefits and limitations did students identify from individual brainstorming and concept mapping in relation to learning more about their topic and producing a good assignment? 4 To what extent did students see value in doing preliminary reading to revise their initial keywords and concept maps? 5 What reading and note?taking strategies did students adopt when using print and electronic resources? 6 To what extent (and why did students prefer to use electronic rather than print resources? 7 What are the implications for teachers and school library media specialists (SLMS?Design – Qualitative, action research; collaborative inquiry.Setting – Ripon Grammar School, Yorkshire, United Kingdom (high school/coeducational.Subjects – Fifty?two students in the second year of high school (year 8 enrolled in a science class studying sound technology; the school library media specialist (SLMS; science teachers.Methods – Students in this study had previously been taught a variety of information skills and had been introduced to a research model called PLUS (Purpose, Location, Use, Self?Evaluation. Students were given a PLUS model booklet, were required to select a topic in the area of sound technology, and were expected to do brainstorming and concept mapping and to produce a 600?word essay. After the assignment was completed, three methods of data collection were employed to determine students’ and teachers’ views: 1 post?assignment questionnaire 2 group interviews with students and teachers 3semi?structured interview with the school librarian.Main results – Responses indicated that students were “mostly” satisfied with the use of the PLUS model, although there were 18 students who did not respond to questions regarding the use of the booklet. It was also clear from the questionnaire that the majority of the students did not feel confident in their abilities to produce a satisfactory assignment prior to beginning the research; however, 48% of the students indicated that the PLUS booklet made them more confident. A comparable number of students said the booklet had no effect on their confidence and one student said it made them less confident. Students responded very positively about the use of individual brainstorming and concept mapping as a way to organize and focus on their topic. (There was a split between those who felt a written concept map was useful and those who felt a mental concept map was just as helpful. The majority of students felt that group brainstorming was helpful, while a few indicated the behavior of other students during group brainstorming was a hindrance. Questions about preliminary reading were not open?ended but were multiple choice. There was no response to indicate whether the preliminary reading was helpful or not, but rather how it was helpful. Most students indicated it had helped to identify the right keywords for further research and it helped them in finding the right resources. Students were questioned on the format of their note?taking. Sixty?five per cent preferred to hand write their notes in a notebook; fifteen per cent preferred to take notes electronically in some type of word processing program; twelve per cent preferred to cut and paste into a word processor; and eight per cent preferred “other methods.” Note?taking styles ranged from bulleted lists to spider diagrams, to using headings with categorized notes. When asked to indicate the percentage of information derived from Web sites versus information from books and journals, responses showed that over 65.5 % of the information came from web sites while only 35.5 % came from print material. When asked why, students responded that Websites were easier to read,

Julie Stephens

2007-06-01

43

One of My Favorite Assignments: Automated Teller Machine Simulation.  

Science.gov (United States)

Describes an assignment for an introductory computer science class that requires the student to write a software program that simulates an automated teller machine. Highlights include an algorithm for the assignment; sample file contents; language features used; assignment variations; and discussion points. (LRW)

Oberman, Paul S.

2001-01-01

44

BTEC Integrative Assignments.  

Science.gov (United States)

To equip electrical engineering students with common and transferable work skills, a program of integrative assignments was created to develop communication and teamwork skills. Discusses assignment components; the log book, a personal account of each assignment; assessment; conversion of "common skills" to competence statements, and performance…

Foot, G. E.

1992-01-01

45

MSW Foundation Students in the Field: Reflections on the Nature and Quality of Group Work Assignments and Supervision  

Science.gov (United States)

Commentators find that education in social group work has diminished over the past three decades, creating a shortage in group work-trained field instructors. The role of instructing group work students may appear relatively easy; however, quality instruction requires careful planning, time, energy, and specialized knowledge. Without knowledge and…

LaPorte, Heidi Heft; Sweifach, Jay

2011-01-01

46

Class Schedule Assignment Based on Students Learning Rhythms Using A Genetic Algorithm Asignación de horarios de clase basado en los ritmos de aprendizaje de los estudiantes usando un algoritmo genético  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The objective of this proposal is to implement a school day agenda focused on the learning rhythms of students of elementary and secondary schools using a genetic algorithm. The methodology of this proposal takes into account legal requirements and constraints on the assignment of teachers and classrooms in public educational institutions in Colombia. In addition, this proposal provides a set of constraints focused on cognitive rhythms and subjects are scheduled at the most convenient times a...

Suarez Chilma, Victor F.; Castrillo?n Gomez, Omar D.; Álvaro Guerrero Aguirre

2013-01-01

47

Sequential reading/writing assignment  

Science.gov (United States)

Right now I use four essay assignments in Paleontology. These assignments work to help students meet several goals of the course, including using reading/writing for critical thinking, synthesizing information from different sources, and formulating new research questions. In particular, the last two of the four assignments are designed as part of a multi-step process. Each student is assigned a particular reading for which he or she will be the primary discussant in a class discussion. Two things are required to make this discussion work and to achieve the (hoped for) "aha" moments for the students. Students must take the time to read and understand the paper they've received. It's useful, particularly if students are just starting out reading primary literature, to discuss how to approach reading a journal article. Maybe most important is inculcating the idea that most people don't read straight through a paper, that multiple readings are important, and that it's not like reading a novel â it takes time to absorb. On discussion day, have students talk about the papers in chronological sequence. There should be back and forth discussion, of course, but when this process works right, (which is most of the time, in my experience), the stepwise introduction and discussion of the papers allows students to see how the problem was originally framed, how it developed, and how new information changes interpretations (and that there may not be a clear resolution). After the discussion, hand out essay assignments tailored to the skills and knowledge you want them to acquire.

Kendrick, David

48

Effects of Sentence Making, Composition Writing and Cloze Test Assignments on Vocabulary Learning of Pre-intermediate EFL Students  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This study aimed to investigate the effects of three writing assignments (sentence making, composition writing and cloze test) on vocabulary learning and tried to compare the effectiveness of these assignments to see which one has the best effect. Accordingly, 102 homogeneous pre-intermediate EFL female learners, studying English at an institute in Shiraz, Iran, were randomly divided into three groups. At the beginning, an unannounced researcher-made pre-test including 60 multiple choice test...

Zeinab Talebzadeh; Mohammad Sadegh Bagheri

2012-01-01

49

The Grandfriends Project: A Program Creating Friendships across the Generations. Leader's Guide [and] Student Handbook [and] Assignment Sheets.  

Science.gov (United States)

Based on the view that intergenerational friendships between older adults and high school students enrich the lives of both groups, the Grandfriends Project is a program for bringing students and elderly members of the community together. High school students receive "basic training" for visiting a nursing home, are taught listening and…

Kimeldorf, Martin

50

25 CFR 36.99 - Are immunizations required for residential program students?  

Science.gov (United States)

...2009-04-01 false Are immunizations required for residential program...Requirements § 36.99 Are immunizations required for residential program... Each student must have all immunizations required by State, local,...

2009-04-01

51

Effects of Sentence Making, Composition Writing and Cloze Test Assignments on Vocabulary Learning of Pre-intermediate EFL Students  

Directory of Open Access Journals (Sweden)

Full Text Available This study aimed to investigate the effects of three writing assignments (sentence making, composition writing and cloze test on vocabulary learning and tried to compare the effectiveness of these assignments to see which one has the best effect. Accordingly, 102 homogeneous pre-intermediate EFL female learners, studying English at an institute in Shiraz, Iran, were randomly divided into three groups. At the beginning, an unannounced researcher-made pre-test including 60 multiple choice tests (60 vocabulary items, from all parts of speech was administered which showed no learners knew all the items. Then during 6 sessions the 60 vocabulary items were taught (each session 10 items. Each session, in the first group the participants were asked to write a sentence for each of the 10 items. In the second group the participants were asked to write a composition using the 10 newly taught vocabulary, and in the third group the participants were asked to fill in the blanks of a cloze-test. After the 6th session a post-test which was the same as the pre-test was administered. To analyze the data obtained from the tests, two one-way ANOVAs and three paired t-tests were utilized. The results indicated that all three assignments were significantly effective to help learners learn new vocabulary items and that the learners were not significantly different from each other in the pre-test. Moreover, the group which was to write a composition did significantly better in the post test than the two other groups but the difference between the two other groups was not significant. An interview was done by the researcher after the treatment period. The interview results confirmed the beneficial effects of these assignments on learners' vocabulary learning.

Zeinab Talebzadeh

2012-01-01

52

What Democracy Requires: A Student Takes His Principal to Fairness  

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In this essay, a high school principal reflects on the time a student took him to the Fairness Committee, a democratic structure for behavioral interventions. By mobilizing this process, the student affirmed his commitment to the school's core values, as well as his commitment to his own education. School structures for the development of…

Hawkes, T. Elijah

2011-01-01

53

Between-Teacher Differences in Homework Assignments and the Development of Students' Homework Effort, Homework Emotions, and Achievement  

Science.gov (United States)

The study examines whether teachers' homework objectives, implementation practices, and attitudes toward parental involvement are associated with the development of students' homework effort, homework emotions, and achievement during Grade 8. A total of 63 teachers (40 male, 23 female; mean teaching experience: M = 17.5 years) of French as a 2nd…

Trautwein, Ulrich; Niggli, Alois; Schnyder, Inge; Ludtke, Oliver

2009-01-01

54

Integrated Design of Basic Training, Practicum and End-of-Course Assignment Modules in the Teacher Training Degree: Perception of University Teachers, Students, and School Teachers  

Science.gov (United States)

Teacher training at the Blanquerna Faculty of Psychology and Educational and Sports Sciences (FPCEE), in Barcelona, has a long pedagogical tradition based on teaching innovation. Its educational style is characterised by methods focused on the students' involvement and on close collaboration with teaching practice centres. Within a core subject in the Teacher Training diploma course, students were asked to assess different methodological proposals aimed at promoting the development of their personal, social, and professional competences. In the assessment surveys, from a sample of 145 students, scores for variables very satisfactory or satisfactory ranged from 95.8 % to 83.4 % for the entire set of methodological actions under analysis. Data obtained in this first research phase were very useful to design basic training modules for the new Teacher Training Degree. In the second phase (in process), active teachers are asked for their perception on the orientation of the practicum, its connection with the end-of-course assignment, and the in-service student's incidence on innovation processes at school.

Torremorell, Maria Carme Boqué; de Nicolás, Montserrat Alguacil; Valls, Mercč Pańellas

55

How do principals assign students to teachers? Finding evidence in administrative data and the implications for value-added  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The federal government's Race to the Top competition has promoted the adoption of test-based performance measures as a component of teacher evaluations throughout many states, but the validity of these measures has been controversial among researchers and widely contested by teachers' unions. A key concern is the extent to which nonrandom sorting of students to teachers may bias the results and lead to a misclassification of teachers as high or low performing. In light of this, it is importan...

Dieterle, Steven G.; Guarino, Cassandra; Reckase, Mark D.; Wooldridge, Jeffrey M.

2012-01-01

56

A Framework for Prioritizing Required Knowledge, Skills and Competencies of Cooperative Students  

Directory of Open Access Journals (Sweden)

Full Text Available This research proposed a framework to identify the weight and also the priority of required knowledge, skills and competencies of cooperative students. The academic institute needs to supply the required knowledge, skills and competencies to students before they get in to the host organizations. However, the university has no sufficient resources to supply all requirements to the students. Therefore, a proper method to identify the weight and to identify priorities of considered elements was required. According to a distinctive of analytic hierarchy process, this study applied it to be a part of the framework to deliver the expected outcome.

R. Wudhikarn

2013-04-01

57

Integrating Online Assignments Checking in Introductory Courses  

Science.gov (United States)

Web technology offers lecturers the option of checking students' assignments online. Several systems have evolved to deliver personal assignments to each student in a multi-participant course. These systems provide students with immediate feedback, allowing them to correct erroneous answers and referring them to relevant literary sources that…

Pundak, David; Shacham, Miri; Herscovitz, Orit

2013-01-01

58

An Exploratory Study of Teacher-Required Out-of-Class Academic Collaboration among Students at a Singapore Polytechnic.  

Science.gov (United States)

Academic collaboration among students takes place not only inside the classrooms but outside of class as well. This study investigated such out-of-class academic collaboration among Singaporean polytechnic students as they worked on assignments in which their instructors had made collaboration mandatory. Data were collected via questionnaires…

Hussein, Aisha; Jacobs, George M.; Ismail, Fazilah M.

59

A framework for assessing learning assistants' reflective writing assignments  

Science.gov (United States)

At Florida International University we have implemented a learning assistant (LA) program based on the Colorado Learning Assistant Model. [1] As a part of this program, students take a course on science and mathematics education theory and practice in which they are required to submit written reflections. Past anecdotal evidence suggests that students in the LAP at Florida International University are using these writing assignments to reflect on their teaching experiences. The purpose of this study was to a) determine if the writing assignments submitted give evidence that our students are engaging in reflection and b) determine if our students are engaging in deep levels of reflection. In this investigation, we relied on a rubric based on Hatton and Smith's (1995) [2] "Criteria for the Recognition of Evidence for Different Types of Reflective Writing." In this paper, we document a) a system for characterizing student reflections and b) how we give them feedback.

Cochran, Geraldine L.; Brookes, David T.; Kramer, Laird H.

2013-01-01

60

Class Schedule Assignment Based on Students Learning Rhythms Using A Genetic Algorithm / Asignación de horarios de clase basado en los ritmos de aprendizaje de los estudiantes usando un algoritmo genético  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: English Abstract in spanish El objetivo de esta propuesta es implementar un horario escolar que tenga en cuenta los ritmos de aprendizaje en los estudiantes de educación primaria y secundaria, utilizando un algoritmo genético. La metodología considera los requerimientos legales y las restricciones necesarias para la asignación [...] de maestros y aulas en instituciones educativas públicas de Colombia. Adicionalmente, se establecen un conjunto de restricciones relacionadas con el enfoque en los ritmos cognitivos, determinando las horas de la jornada en las que es más conveniente la ubicación de ciertas materias de acuerdo al área del conocimiento al que pertenecen. El algoritmo genético evoluciona mediante un proceso de mutación y selección, a través del cual se construye una solución completa a partir de la búsqueda de las mejores soluciones por grupo. Se presentan los resultados de las pruebas realizadas para la asignación de una institución con 16 grupos. La calidad de las soluciones obtenidas de acuerdo al enfoque establecido es validada mediante la comparación de los resultados obtenidos con las soluciones de otro algoritmo. Abstract in english The objective of this proposal is to implement a school day agenda focused on the learning rhythms of students of elementary and secondary schools using a genetic algorithm. The methodology of this proposal takes into account legal requirements and constraints on the assignment of teachers and class [...] rooms in public educational institutions in Colombia. In addition, this proposal provides a set of constraints focused on cognitive rhythms and subjects are scheduled at the most convenient times according to the area of knowledge. The genetic algorithm evolves through a process of mutation and selection and builds a total solution based on the best solutions for each group. Sixteen groups in a school are tested and the results of class schedule assignments are presented. The quality of the solution obtained through the established approach is validated by comparing the results to the solutions obtained using another algorithm.

Victor F, Suarez Chilma; Omar D, Castrillón Gomez; Álvaro, Guerrero Aguirre.

2013-06-01

 
 
 
 
61

Personnel dose assignment practices  

International Nuclear Information System (INIS)

Implementation of DOE N 5480.6 Radiological Control Manual Article 511(3) requirements, to minimize the assignment of personnel dosimeters, should be done only under a broader context ensuring that capabilities are in place to monitor and record personnel exposure both for compliance and for potential litigation. As noted in NCRP Report No. 114, personnel dosimetry programs are conducted to meet four major objectives: radiation safety program control and evaluation; regulatory compliance; epidemiological research; and litigation. A change to Article 511(3) is proposed that would require that minimizing the assignment of personnel dosimeters take place only following full evaluation of overall capabilities (e.g., access control, area dosimetry, etc.) to meet the NCRP objectives

1993-04-13

62

Combining a Case Study and Original Research in an Extended Writing Assignment.  

Science.gov (United States)

Describes an extended writing assignment used in a business communication class that combines a case study and original student research, thus defining a realistic business situation needing action and requiring students to research a business situation and apply the findings from their research to decide exactly what course of action is…

Morton, Gerald W.

2000-01-01

63

Energy Requirements, Prediction of Body Fat and Weight Status Analysis of Nursing Students in Gaza Strip  

Directory of Open Access Journals (Sweden)

Full Text Available This study aimed to assess the total daily energy requirements (TDR, body mass index (BMI , body fat percentage (PBF, and weight status analysis according to body mass of nursing students in Gaza Strip. Study sample consisted of (93 subjects from college of nursing at Islamic university, Gaza, and (61 subjects from Palestine college of nursing, Khan Younus. Systematic random sample was used in this study to select the subjects from both colleges. Average basal metabolic rate (BMR and approx. total daily energy requirements (TDR for male students at Islamic university-Gaza (IUG were 1700 (SD 252 and 2040 Kcal/day respectively. For the female students BMR and TDR were 1506 (SD 213 Kcal/day and 1807 Kcal/day, respectively. Average body mass index (BMI of the male students at IUG was 23.85 (SD 4.06 Kg/m2, and for female students of the same college was 23.97 (SD 4.51 Kg/m2. Average body fat percentage (PBF of nursing male students at IUG was 17.21 (SD 4.82 and for females was 27.96 (SD 5.41. About sixty sex (66.1% percent of male nursing students at IUG had ideal weight whereas, 5.3% and 28.5 % were underweight and overweight respectively. For female students, 73% had normal weight and 27% had overweight. Average BMR and approx. TDR for the male students at Palestine college of nursing (PCN were 1635 (SD 226 and 1962 Kcal/day respectively. For the female students BMR and TDR were 1470 (SD 152 and 1765 Kcal/day respectively. Average BMI of the male students at PCN was 22.70 (SD 3.25 Kg/m2, and female students of the same college was 21.80 (SD 2.93 Kg/m2. Average PBF for males at PCN was 15.64 (SD 3.90 and for females was 26.30 (SD 3.88. About seventy two (72.2 % of male students at PCN had ideal weight whereas, 5.6% and 22.2 % were underweight and overweight respectively. For female students at the same college, 72 %, 4 %,and 24 % had ideal weight, underweight and overweight respectively.

Baker Mahmud Zabut

2005-01-01

64

Generalized Weapon Target Assignment Problem.  

Science.gov (United States)

Dynamic command and control and battle management functions require fast and effective decision aids to provide optimal allocation of resources (object/sensor pairing, weapon/target assignment) for effective engagement and real-time battle damage assessme...

A. Yucel H. S. Hwang J. M. Rosenberger R. L. Wilson R. P. Pallerla

2005-01-01

65

Electrical Engineering Term Paper Assignment  

Science.gov (United States)

This document is a term paper assignment given as part of a course on electrical circuits, taught by Mack Moge at the University of Houston. The term paper project asks students to "investigate and collect data about the current electrical energy use in various buildings and to provide some creative solutions for minimizing the energy use." The students will apply their engineering knowledge to increase efficiency in the world around them. This document is available for download in PDF file format.

Moge, Mack

2012-10-03

66

Responses of Fourth-Year Medical Students to a Required Clerkship in Geriatrics.  

Science.gov (United States)

Students at the Mount Sinai School of Medicine of the City University of New York taking a required clinical clerkship in geriatrics were surveyed before and after the clerkship on their knowledge of geriatrics, attitudes toward the elderly, and evaluation of the rotation. (Author/MLW)

Murden, Robert A.; And Others

1986-01-01

67

Materials And Estimating: Building Design Research Assignment  

Science.gov (United States)

This research assignment asks building design students to research manufacturers and companies that produce kitchen and bath design materials. The assignment is intended to be done throughout an entire semester. Students will compare a traditional product used in kitchen or bath design to a similar "green" or sustainable product. A large component of the project asks the students to research the products and create a resource directory for their future use. This document may be downloaded in Microsoft Word Doc file format.

Wolf, Arlynne

2011-12-05

68

Promoting Student Learning by Having College Students Participate in an Online Environment  

Science.gov (United States)

Using data collected in spring 2009 from students at a southern research university enrolled in either of 2 sections of a general education course that fulfilled a social/behavioral sciences graduation requirement, the present study examined whether participating in online assignments enhanced students' satisfaction with those assignments and with…

Lo, Celia C.; Johnson, Ebony; Tenorio, Kimberly

2011-01-01

69

Energy Requirements, Prediction of Body Fat and Weight Status Analysis of Nursing Students in Gaza Strip  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This study aimed to assess the total daily energy requirements (TDR), body mass index (BMI) , body fat percentage (PBF), and weight status analysis according to body mass of nursing students in Gaza Strip. Study sample consisted of (93) subjects from college of nursing at Islamic university, Gaza, and (61) subjects from Palestine college of nursing, Khan Younus. Systematic random sample was used in this study to select the subjects from both colleges. Average basal metabolic rate (BMR)...

Baker Mahmud Zabut

2005-01-01

70

Conceptual questions in computer-assisted assignments  

Science.gov (United States)

The computer-assisted personalized assignment system has been used to prepare and present conceptual, qualitative questions to students in large introductory classes. The questions appear to be effective in helping students to grasp concepts, as they stimulate dialogue and discussion among the students while they are seeking correct solutions, and provide the instructor with feedback on difficulties students encounter with certain concepts. No formal evaluation of the effectiveness of these questions has been made. Many conceptual, qualitative questions for introductory physics have been written with this system and used in assignments. Several examples are given and briefly discussed.

Kashy, E.; Gaff, S. J.; Pawley, N. H.; Stretch, W. L.; Wolfe, S. L.; Morrissey, D. J.; Tsai, Y.

1995-11-01

71

Teaching Gene Technology in an Outreach Lab: Students' Assigned Cognitive Load Clusters and the Clusters' Relationships to Learner Characteristics, Laboratory Variables, and Cognitive Achievement  

Science.gov (United States)

This study classified students into different cognitive load (CL) groups by means of cluster analysis based on their experienced CL in a gene technology outreach lab which has instructionally been designed with regard to CL theory. The relationships of the identified student CL clusters to learner characteristics, laboratory variables, and cognitive achievement were examined using a pre-post-follow-up design. Participants of our day-long module Genetic Fingerprinting were 409 twelfth-graders. During the module instructional phases (pre-lab, theoretical, experimental, and interpretation phases), we measured the students' mental effort (ME) as an index of CL. By clustering the students' module-phase-specific ME pattern, we found three student CL clusters which were independent of the module instructional phases, labeled as low-level, average-level, and high-level loaded clusters. Additionally, we found two student CL clusters that were each particular to a specific module phase. Their members reported especially high ME invested in one phase each: within the pre-lab phase and within the interpretation phase. Differentiating the clusters, we identified uncertainty tolerance, prior experience in experimentation, epistemic interest, and prior knowledge as relevant learner characteristics. We found relationships to cognitive achievement, but no relationships to the examined laboratory variables. Our results underscore the importance of pre-lab and interpretation phases in hands-on teaching in science education and the need for teachers to pay attention to these phases, both inside and outside of outreach laboratory learning settings.

Scharfenberg, Franz-Josef; Bogner, Franz X.

2013-02-01

72

One-shot or Embedded? Assessing Different Delivery Timing for Information Resources Relevant to Assignments  

Directory of Open Access Journals (Sweden)

Full Text Available Objective – This study aims to determine if the timing of library in-class presentations makes a difference in the type and quality of resources students use for each of four assignments in an introductory speech class. This comparison of content delivery timing contrasts a single, 50-minute lecture early in the semester with four approximately 12-minute lectures offered just before each assignment.Methods – First-year engineering students taking Fundamentals of Speech Communication provide the study group. Each speech assignment requires students to turn in an outline and list of references. The list of references for each student was given to the librarians, after the assignments were appropriately anonymized, for analysis of resource type, quality of resource, and completeness of citation. Researchers coded arandom sample of bibliographies from the assignments using a framework to identify resource type (book, periodical, Web, facts & figures, unknown and quality, based on intended audience and purpose (scholarly, entertainment, persuasion/bias, and compared them to each other to determine if a difference is evident. The authors coordinated what material would be presented to the students to minimize variation between the sections.Results – The study found a statistically significant difference between groups of students, demonstrating that the frequent, short library instruction sessions produce an increased use of high-quality content. Similarly, the sections with multiple library interactions show more use of periodicals than websites, while completeness of references is not significantly different across teaching methods.Conclusions – More frequent and timely interaction between students and library instruction increases the quality of sources used and the completeness of the citations written. While researchers found statistically significant differences, the use of a citation coding framework developed for specific engineering research and design tasks means the analysis done in this study is not as accurate as it might be with a framework designed for analyzing the resources required for researching and writing speech assignments.

Megan Sapp Nelson

2013-03-01

73

The Role of Homework in Student Learning Outcomes: Evidence from a Field Experiment  

Science.gov (United States)

In this article, the authors describe a field experiment in the classroom where principles of micro-economics students are randomly assigned into homework-required and not-required groups. The authors find that homework plays an important role in student learning, especially so for students who initially perform poorly in the course. Students in…

Grodner, Andrew; Rupp, Nicholas G.

2013-01-01

74

Analytical Study of Self-Motivations among a Southwest Public University Nonpolitical Science Major Students in Required Political Science Courses  

Science.gov (United States)

All undergraduate students are required by state law to take six credited hours in political science. This study will help us identify if differences exist in self-determination among students enrolled in American Public Policy and American Government at a large, Southwestern public university. Because some types of motivation are associated with…

Gasim, Gamal; Stevens, Tara; Zebidi, Amira

2012-01-01

75

The Impact of Differentiated Reading Homework Assignments on Students' Attitudes toward Homework, Motivation to Read, Interest in Reading, and Reading Achievement  

Science.gov (United States)

Previous research has indicated that there is no relationship between traditional homework completion and academic achievement among elementary grade students. Yet, elementary school teachers continue to utilize this practice. The purpose of this quantitative study was to investigate the relationship between nontraditional, differentiated reading…

Hickerson, Danielle

2012-01-01

76

Using Assessment to Support Higher Level Learning: The Multiple Choice Item Development Assignment  

Science.gov (United States)

This paper describes the multiple choice item development assignment (MCIDA) that was developed to support both content and higher level learning. The MCIDA involves students in higher level learning by requiring them to develop multiple choice items, write justifications for both correct and incorrect answer options and determine the highest…

Fellenz, Martin R.

2004-01-01

77

On Walsh code assignment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The paper considers the problem of orthogonal variable spreading Walsh-code assignments. The aim of the paper is to provide assignments that can avoid both complicated signaling from the BS to the users and blind rate and code detection amongst a great number of possible codes. The assignments considered here use a partition of all users into several pools. Each pool can use its own codes that are different for different pools. Each user has only a few codes assigned to it w...

Tsybakov, B. S.; Tsybakov, A. B.

2012-01-01

78

Assessment of a Diversity Assignment in a PR Principles Course  

Science.gov (United States)

This study assesses an assignment for incorporating diversity into the principles of public relations course. The assignment is tailored to the challenges of using an active learning approach in a large lecture class. For the assignment, students write a goal, objectives, strategies, an identification of tactics, and evaluation plans for either…

Gallicano, Tiffany Derville; Stansberry, Kathleen

2012-01-01

79

Residential Studio Assignment: "Story of the Sofa"  

Science.gov (United States)

This assignment from Betty Ravnik of Alexandria Technical College asks residential design students to "identify the materials in a sofa and research the environmental and social impact of the manufacturing of each part." They will also identify the sustainable feasibility of the different components of the sofa. This project incorporates the areas of manufacturing, sustainable product design and reducing manufacturing waste. The assignment is intended to be completed over a period of one week. This document may be downloaded in PDF file format.

Ravnik, Betty

2012-01-05

80

"Piggybacking" on Business Communication through Interdisciplinarity: Developing Student Communication Skills in Legal Environment of Business Courses  

Science.gov (United States)

The purpose of this article is to describe an assignment for a legal environment of business course that builds upon and reinforces strong business communication practices. The assignment discusses "piggybacking," which is the unauthorized use of another person's wireless Internet connection. In this assignment, the students are required (1) to…

Cooley, Amanda Harmon

2009-01-01

 
 
 
 
81

Active Quantum Mechanics: Tutorials and Writing Assignments  

Science.gov (United States)

This web site contains active-learning tutorials and writing assignments for upper-level undergraduate quantum mechanics. The tutorials focus on the mathematical formalism of quantum mechanics. The writing assignments focus on the interpretation of quantum mechanics, and particularly the role of experiments. The topics cover range from introduction to the Schrodinger equation through perturbation theory. In the course using these materials, students work in small groups to complete worksheet-based tutorials during class time, and do fairly typical homework problems and writing assignments, on their own.

Timberlake, Todd

2011-08-01

82

Online Assignments in Economics: A Test of Their Effectiveness  

Science.gov (United States)

This article compares the effectiveness of online and paper-based assignments and tutorials using summative assessment results. All of the students in a large managerial economics course at National University of Ireland, Galway were asked to do six assignments online using Aplia and to do two on paper. The authors examined whether a student's…

Kennelly, Brendan; Considine, John; Flannery, Darragh

2011-01-01

83

Linking neuroscientific research on decision making to the educational context of novice students assigned to a multiple-choice scientific task involving common misconceptions about electrical circuits.  

Science.gov (United States)

Functional magnetic resonance imaging was used to identify the brain-based mechanisms of uncertainty and certainty associated with answers to multiple-choice questions involving common misconceptions about electric circuits. Twenty-two scientifically novice participants (humanities and arts college students) were asked, in an fMRI study, whether or not they thought the light bulbs in images presenting electric circuits were lighted up correctly, and if they were certain or uncertain of their answers. When participants reported that they were unsure of their responses, analyses revealed significant activations in brain areas typically involved in uncertainty (anterior cingulate cortex, anterior insula cortex, and superior/dorsomedial frontal cortex) and in the left middle/superior temporal lobe. Certainty was associated with large bilateral activations in the occipital and parietal regions usually involved in visuospatial processing. Correct-and-certain answers were associated with activations that suggest a stronger mobilization of visual attention resources when compared to incorrect-and-certain answers. These findings provide insights into brain-based mechanisms of uncertainty that are activated when common misconceptions, identified as such by science education research literature, interfere in decision making in a school-like task. We also discuss the implications of these results from an educational perspective. PMID:24478680

Potvin, Patrice; Turmel, Elaine; Masson, Steve

2014-01-01

84

Linking neuroscientific research on decision making to the educational context of novice students assigned to a multiple-choice scientific task involving common misconceptions about electrical circuits  

Directory of Open Access Journals (Sweden)

Full Text Available Functional magnetic resonance imaging was used to identify the brain-based mechanisms of uncertainty and certainty associated with answers to multiple-choice questions involving common misconceptions about electric circuits. Twenty-two (22 scientifically novice participants (humanities and arts college students were asked, in an fMRI study, whether or not they thought the light bulbs in images presenting electric circuits were lighted up correctly, and if they were certain or uncertain of their answers. When participants reported that they were unsure of their responses, analyses revealed significant activations in brain areas typically involved in uncertainty (anterior cingulate cortex, anterior insula cortex, and superior/dorsomedial frontal cortex and in the left middle/superior temporal lobe. Certainty was associated with large bilateral activations in the occipital and parietal regions usually involved in visuospatial processing. Correct-and-certain answers were associated with activations that suggest a stronger mobilization of visual attention resources when compared to incorrect-and-certain answers. These findings provide insights into brain-based mechanisms of uncertainty that are activated when common misconceptions, identified as such by science education research literature, interfere in decision making in a school-like task. We also discuss the implications of these results from an educational perspective.

PatricePotvin

2014-01-01

85

Sequenced Writing Assignments.  

Science.gov (United States)

Provides eight sequential, process-oriented writing assignments: (1) diagnostic essay, (2) personal account, (3) ghost writing, (4) summary, (5) developing a thesis, (6) exploratory essay, (7) proposal, and (8) final paper. (HTH)

Pytlik, Betty P.; Bergdahl, David

1987-01-01

86

Are New Generations of Female College-Student Populations Meeting Calcium Requirements: Comparison of American and Croatian Female Students  

Directory of Open Access Journals (Sweden)

Full Text Available We compared calcium (Ca sources and intake, as well as multivitamin/mineral supplement use between female students with nutrition/health background and those from general-student-populations. 314 participants 18–37 y, including 57 African-Americans and 54 Caucasian-Americans recruited from Nutrition and/or other Health Sciences departments (NHS, and 100 African-American and 103 Croatian women representing general-student-population (GSP, completed food frequency questionnaire assessing their usual Ca intake and supplement use. NHS populations met recommendations and consumed significantly more Ca, particularly from dairy sources, and were more likely to take supplements than GSP groups, suggesting that health education may influence Ca intake.

Crystal C. Douglas

2010-05-01

87

Truthful Assignment without Money  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We study the design of truthful mechanisms that do not use payments for the generalized assignment problem (GAP) and its variants. An instance of the GAP consists of a bipartite graph with jobs on one side and machines on the other. Machines have capacities and edges have values and sizes; the goal is to construct a welfare maximizing feasible assignment. In our model of private valuations, motivated by impossibility results, the value and sizes on all job-machine pairs are ...

Dughmi, Shaddin; Ghosh, Arpita

2010-01-01

88

Evaluating Experiential Learning in Organizational Behavior: Taking Measure of Student Perception Regarding Group Experience  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Problem statement: The purpose of this study was to determine undergraduate student perceptions in the areas of group experience within the context of an undergraduate organizational behavior business class community service assignment. College students, as part of an in-class service-learning project, were assigned to teach business related curriculum to at-risk high school students. Approach: Students, enrolled in the required senior level business course, were then assessed i...

Roxanne Helm-Stevens; Orlando Griego

2009-01-01

89

Samples of Students' Writing from the English 33 Diploma Examination, June 1988.  

Science.gov (United States)

This booklet provides samples of student writing that exemplify the standards that governed the scoring of student essays on the June 1988 English 33 Diploma Examination. Both major and minor writing assignments for seven students are provided, with examples of the full range of student writing. The English 33, Part A, Written Response requires

Alberta Dept. of Education, Edmonton. Student Evaluation and Records Branch.

90

Penpals and Keypals--Networks for Student Writers.  

Science.gov (United States)

The idea behind this project created by two teachers of different age groups was that providing students with penpals would give students a real audience to write to and change their attitudes about writing. Seventh graders and college students exchanged letters and were required to send working drafts of some class assignments to each other to…

Tebo-Messina, Margaret; Blough, Doris B.

91

34 CFR 692.120 - What are the requirements for student eligibility?  

Science.gov (United States)

...receive a LEAP Grant under GAP if the studentâ ...receiving, a LEAP Grant under GAP for each year the student remains eligible...this part in the award year in which the student is...additional LEAP Grant under GAP; or (C) Is...

2010-07-01

92

74 FR 37432 - Institutions and Lender Requirements Relating to Education Loans, Student Assistance General...  

Science.gov (United States)

...determinable physical or mental impairment that...early literacy, and early mathematics), social, emotional, and physical development. (3) A child care...address within 30 days after learning that the student...

2009-07-28

93

IS HONORARIUM REQUIRED? REMOVING IRREGULARITIES IN STUDENT CREATIVITY PROGRAM IN INDONESIA  

Directory of Open Access Journals (Sweden)

Full Text Available Student Creativity Program or Program Kreativitas Mahasiswa (PKM is a prestigious annual scientific program for undergraduate students in Indonesia. The program runs since 2001 and held by DP2M Dikti, Ministry of Education and Culture. In 2013, over 7000 program proposals are funded on a maximum budget of IDR 12,500,000 each. This program aims to improve the quality of undergraduate students in order to become a part of community who have the academic and/ or professionals ability, who can implement, develop and disseminate science, technology and/ or the arts and enrich the national culture.1 Unfortunately, there is the corruption risk in the program. This study aims to investigate irregularities by students in PKM, revealing the root causes and offering solutions for policy reform in PKM. This study uses triangulation method (interview-observation-documentation for data gathering. Interviews were conducted to 30 students from 10 different universities in Indonesia. The study findings show that there are irregularities in PKM, such as marking up budget funds, futhermore, a lot of the remaining funds being used for private purposes. These occur because evaluators never ask about the remaining funds at the time of monitoring and evaluation (monev. Still, the budget does not include honorarium as a reward for the student’s hard work. In fact, the misuse of budget allocation for private purpose is not appropriate because it is contrary to Article 2 of Law No. 31/ 1999. A total of 26 out of 30 students agreed if there is honorarium in PKM, so there will be a giving back for their energy, time and thought. This study is very potential for removing irregularities and reforming policy of PKM in Indonesia, so the program is no longer contaminated by the corruption risk.

Agustin ANGGRIANI

2014-05-01

94

College-Preparatory Curriculum for All: The Consequences of Raising Mathematics Graduation Requirements on Students' Course Taking and Outcomes in Chicago  

Science.gov (United States)

This study evaluates a curriculum policy that required college preparatory coursework for all students, using data from Chicago Public Schools (CPS). Beginning in 1997, CPS ended remedial coursework and required all students to complete a college-preparatory course sequence for graduation. In this study, the authors constrain their analysis to the…

Allensworth, Elaine M.; Nomi, Takako

2009-01-01

95

Assigning Types to Processes  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In wide area distributed systems it is now common for higher-order code to be transferred from one domain to another; the receiving host may initialise parameters and then execute the code in its local environment. We propose a fine-grained typing system for a higher-order ?-calculus which can be used to control the effect of such migrating code on local environments. Processes may be assigned different types depending on their intended use. This is in contrast to most of the previous work o...

Hennessy, Matthew

2000-01-01

96

Activity Based Physics Alternative Homework Assignments: Roller Coaster  

Science.gov (United States)

This web page contains an introductory physics homework assignment relating to roller coaster design, developed as an alternative to traditional textbook homework. Students use observational skills and mathematical modeling, combined with basic physics, to design a roller coaster with specified characteristics. The student must formulate a design that is both safe and provides sufficient energy for cars to reach the end of the track. Concepts explored in this problem include gravity, potential and kinetic energy, circular motion, drag due to friction, center of mass, and acceleration. This item is part of a larger collection of alternative homework assignments designed for introductory physics students. Each assignment poses a series of questions about a single context. To successfully complete assignments, students must think critically about how the physical situation could be represented by mathematics.

Vick, K.; Redish, Edward F.; Cooney, Patrick

2008-11-26

97

Activity Based Physics Alternative Homework Assignments: Rocket Motion  

Science.gov (United States)

This web page contains a homework assignment that asks the student to solve problems based on the launch and flight of a rocket. Developed as an alternative to traditional textbook homework, this item is based on the work of the Activity Based Physics project (ABP). Students must make estimations and build their own mathematical models to determine which concepts of classical mechanics apply to each section of the problem set. Topics covered include kinematics, Newton's second law, conservation of energy, and projectile motion. This item is part of a larger collection of alternative homework assignments designed for introductory physics students. Each assignment poses a series of questions about a single context. To successfully complete assignments, students must think critically about how the physical situation could be represented by mathematics.

Redish, Edward F.; Cooney, Patrick; Vick, K.

2008-11-26

98

Creating and Utilizing Online Assignments in a Calculus Class  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The aims of this paper are to present some of the findings about the creation and utilization of online assignments and choice of support software for several calculus classes at Simon Fraser University (SFU) by considering the needs and perspectives of the instructors, students, and administrators. The term online assignment is used for a set of problems that are posted, submitted, graded, and recorded

2012-01-01

99

Time Students Spend Reading Threaded Discussions in Online Graduate Courses Requiring Asynchronous Participation  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The authors report the results of a study that provides bases for comparison between the time necessary to participate in courses delivered asynchronously online and courses delivered in a traditional classroom setting. Weekly discussion threads from 21 sections of six courses offered as part of online, degree-granting, accredited, graduate programs were examined. The purpose of this research is to determine whether students are spending more or less time participating in an online course tha...

2009-01-01

100

Inferential backbone assignment for sparse data  

International Nuclear Information System (INIS)

This paper develops an approach to protein backbone NMR assignment that effectively assigns large proteins while using limited sets of triple-resonance experiments. Our approach handles proteins with large fractions of missing data and many ambiguous pairs of pseudoresidues, and provides a statistical assessment of confidence in global and position-specific assignments. The approach is tested on an extensive set of experimental and synthetic data of up to 723 residues, with match tolerances of up to 0.5 ppm for C? and C? resonance types. The tests show that the approach is particularly helpful when data contain experimental noise and require large match tolerances. The keys to the approach are an empirical Bayesian probability model that rigorously accounts for uncertainty in the data at all stages in the analysis, and a hybrid stochastic tree-based search algorithm that effectively explores the large space of possible assignments

2006-07-01

 
 
 
 
101

Collaborative Online Writing Assignments to Foster Active Learning  

Digital Repository Infrastructure Vision for European Research (DRIVER)

To help students master the content of a neurophysiology course, they were asked to participate in collaborative writing projects. In the first two years, students contributed to a class wiki by summarizing one lecture and editing summaries of several others. In the second two years, students worked in teams of three or four to write a series of illustrated chapters spanning the entire semester. The second assignment kept students more engaged than the wiki project, and although they found it...

Olivo, Richard F.

2012-01-01

102

The Impact of Science Fiction Films on Student Interest in Science  

Science.gov (United States)

Science fiction films were used in required and elective nonmajor science courses as a pedagogical tool to motivate student interest in science and to reinforce critical thinking about scientific concepts. Students watched various films and critiqued them for scientific accuracy in written assignments. Students' perception of this activity was…

Laprise, Shari; Winrich, Chuck

2010-01-01

103

A Comparison of Electronic and Paper-Based Assignment Submission and Feedback  

Science.gov (United States)

This paper presents the results of a study evaluating student perceptions of online assignment submission. 47 students submitted assignments and received feedback via features within the Virtual Learning Environment Blackboard[TM]. The students then completed questionnaires comparing their experience of online submission and feedback with…

Bridge, Pete; Appleyard, Rob

2008-01-01

104

Developing Team Skills through a Collaborative Writing Assignment  

Science.gov (United States)

Employers want students who are able to work effectively as members of a team, and expect universities to develop this ability in their graduates. This paper proposes a framework for a collaborative writing assignment that specifically develops students' ability to work in teams. The framework has been tested using two iterations of an action…

Thomas, Theda Ann

2014-01-01

105

Automatic task assignment for mixed aircraft formations  

Science.gov (United States)

This paper discusses the problem of assigning tasks to a variety of differently-configured aircraft - aircraft of different types and carrying very different weapon loads. A multi-objective optimization algorithm is proposed which takes into account all of the relevant properties of the aircraft and the available weapons. Specifically, it includes limitations due to the aircraft's speed, time on station and the number of weapons available. The algorithm also allows for the need to define different priorities for different targets and requirements for co-operative laser designation for certain targets. The paper also discusses the need for supplementary algorithms to validate the optimal solution proposed by the assignment algorithm.

Ralph, Jason F.; Jones, Daniel M.

2009-05-01

106

Assigning agents to a line  

DEFF Research Database (Denmark)

We consider the problem of assigning agents to slots on a line, where only one agent can be served at a slot and each agent prefers to be served as close as possible to his target. Our focus is on aggregate gap minimizing methods, i.e., those that minimize the total gap between targets and assigned slots. We first consider deterministic assignment of agents to slots, and provide a direct method for testing if a given deterministic assignment is aggregate gap minimizing. We then consider probabilistic assignment of agents to slots, and make use of the previous method to propose an aggregate gap minimizing modification of the classic random priority method to solve this class of problems. We also provide some logical relations in our setting among standard axioms in the literature on assignment problems, and explore the robustness of our results to several extensions of our setting.

Hougaard, Jens Leth; Moreno-Ternero, Juan D.

2014-01-01

107

Legal implications of security assignment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The objective of the thesis is to highlight legal problems pertaining to security assignments that may arise in a typical newbuild finance transaction, for instance for the purchase by a Norwegian buyer of a vessel from a foreign yard, and where an English choice of law is made. In doing so, the thesis will firstly offer a brief historical overview and general introduction to the internationally acknowledged notion of assignment, before considering English and Norwegian law assignability with...

2007-01-01

108

The Utility of Writing Assignments in Undergraduate Bioscience  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We tested the hypothesis that engagement in a few, brief writing assignments in a nonmajors science course can improve student ability to convey critical thought about science. A sample of three papers written by students (n = 30) was coded for presence and accuracy of elements related to scientific writing. Scores for different aspects of scientific writing were significantly correlated, suggesting that students recognized relationships between components of scientific thought. We found that...

2012-01-01

109

Tic Tac Toe - Pick 3 in a Row Atomic Model Assignment  

Science.gov (United States)

This activity is a summary/assessment assignment which allows for differentiation and student choice. Students are assessed in their knowledge of the atomic model and the arrangement of elements on the periodic table.

Larson, Janet

110

Student Perspectives on Homework  

Science.gov (United States)

Teachers are finding that a number of students do not complete homework assignments for various reasons, and have long experienced the frustration of students who do not or will not complete their homework assignments. The purpose of this action research project was to research ninth grade freshmen student attitudes about homework at a single…

Wilson, Jan; Rhodes, John

2010-01-01

111

Contextual Aspects of Pronoun Assignment.  

Science.gov (United States)

Three experiments were conducted to ascertain the effect of contextual restraints on pronoun assignment. Pronoun selection is based on integration of the context even where it is already syntactically constrained. Integration occurs during and not following the assignment of the pronoun. (PMJ)

Hirst, William; Brill, Gary A.

1980-01-01

112

Beyond LMS: Expanding Course Experience with Content Collaboration and Smart Assignment Feedback  

Directory of Open Access Journals (Sweden)

Full Text Available Tools for content collaboration among students and teachers and automated assignment verification have been introduced to students of a third-year computing course. Collaborative work on lecture slides promotes content openness to students via a new open perspective and improves the quality of lectures among other benefits. Assignment verification helps students resolve most common problems giving immediate feedback on their submissions. WikiPres and ORVViS applications developed to assist in these tasks are introduced and presented.

Mario Žagar

2010-12-01

113

Do as I Say and as I've Done: Assignment Accountability for College Educators  

Science.gov (United States)

Assessing the potential impact and utility of course assignments are often a matter of informed, yet personal judgment. Here, in this article, doing our own assignments before assigning them to students is explored as a quality assurance measure and as a means to ensure an empathetic and critical approach to developing course work.

Kalchman, Mindy

2011-01-01

114

Strategies of College English Assignment Designing from the Perspective of MI Theory  

Digital Repository Infrastructure Vision for European Research (DRIVER)

College English assignment should be oriented at consolidating and extending what students have learned in the class, realizing the role of promoting students’ English learning and even their all-round development. And a comprehensive achievement could be better reached if college English teachers employ the Multiple-intelligences Theory in the process of designing assignment, catering to aptitude and individuality.

Jinxiu Jing

2013-01-01

115

Strategies of College English Assignment Designing from the Perspective of MI Theory  

Directory of Open Access Journals (Sweden)

Full Text Available College English assignment should be oriented at consolidating and extending what students have learned in the class, realizing the role of promoting students’ English learning and even their all-round development. And a comprehensive achievement could be better reached if college English teachers employ the Multiple-intelligences Theory in the process of designing assignment, catering to aptitude and individuality.

Jinxiu Jing

2013-02-01

116

Technical Assignment Control System (TACS).  

Science.gov (United States)

The Technical Assignment Control System (TACS) is designed to record up to 32 independent items of information which otherwise identify, describe, document, or account for unique work tasks. Each week, any given employee receives a turnaround document on ...

1978-01-01

117

Towards Understanding Software Requirements Capture: Experiences of Professional Students using the NIA to Support the Win-Win Spiral Model  

Directory of Open Access Journals (Sweden)

Full Text Available This paper presents a critical appraisal of the Win-Win Spiral model as a possible process model for developing small-scale software from inception to implementation within a semester framework at higher education institutions. It also presents the Negotiated Incremental Architecture (NIA and its decision rationale, developed at the University of North London as being a possible architecture that supports the Win-Win Spiral model with respect to developing software within higher education institutions over a semester time frame. A group of mature students undertook a coursework, which involved implementing a reasonably straightforward web-based application using the Win-Win Spiral model [1,2]. The task was to produce an on-line golf league system where players could input match results and view their league rankings on the web. The coursework was a requirement for the module ‘Software Engineering’ on the postgraduate masters programme at the University of North London, during semester A of 2001/2002 academic session. Having used the Win-Win Spiral model, we consider the model to be too heavy on documentation and will propose to support the on-going research at the University of North London, to develop a collaborative model, which is an adaptive hybrid of the Win-Win Spiral and the Incremental Development. This proposed Negotiated Incremental Model [3,4,5] will prove to be attainable within a semester framework as well as realistic to implement in industry.

Peter K Oriogun

2002-07-01

118

A probabilistic approach for validating protein NMR chemical shift assignments  

Energy Technology Data Exchange (ETDEWEB)

It has been estimated that more than 20% of the proteins in the BMRB are improperly referenced and that about 1% of all chemical shift assignments are mis-assigned. These statistics also reflect the likelihood that any newly assigned protein will have shift assignment or shift referencing errors. The relatively high frequency of these errors continues to be a concern for the biomolecular NMR community. While several programs do exist to detect and/or correct chemical shift mis-referencing or chemical shift mis-assignments, most can only do one, or the other. The one program (SHIFTCOR) that is capable of handling both chemical shift mis-referencing and mis-assignments, requires the 3D structure coordinates of the target protein. Given that chemical shift mis-assignments and chemical shift re-referencing issues should ideally be addressed prior to 3D structure determination, there is a clear need to develop a structure-independent approach. Here, we present a new structure-independent protocol, which is based on using residue-specific and secondary structure-specific chemical shift distributions calculated over small (3-6 residue) fragments to identify mis-assigned resonances. The method is also able to identify and re-reference mis-referenced chemical shift assignments. Comparisons against existing re-referencing or mis-assignment detection programs show that the method is as good or superior to existing approaches. The protocol described here has been implemented into a freely available Java program called 'Probabilistic Approach for protein Nmr Assignment Validation (PANAV)' and as a web server (http://redpoll.pharmacy.ualberta.ca/PANAVhttp://redpoll.pharmacy.ualberta.ca/PANAV) which can be used to validate and/or correct as well as re-reference assigned protein chemical shifts.

Wang Bowei [Shanghai American School Pudong (China); Wang, Yunjun; Wishart, David S., E-mail: david.wishart@ualberta.c [University of Alberta, Departments of Computing Science and Biological Sciences (Canada)

2010-06-15

119

Requirements for the Success of the Integration Program of Disabled Students in the Regular Schools from the Perspective of the Teachers of the Learning Resources Rooms  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The purpose of this study is to identify the requirements for the success of the integration program and to find out the causes of success and to provide optimal services for the students with disabilities in regular schools. The study attempts to answer the following questions:
1. What are the most important requirements of the success of the integration of disabled persons in regular schools from the viewpoint of the teachers of the learning resources rooms
2. Are the...

Jihad At-Turki; Hisham Ali ALdmour; Al Maitah, Khalil A. R.; Mohammad Nayef ALsarayreh

2012-01-01

120

Initial Requirements of Deaf Students for Video: Lessons Learned from an Evaluation of a Digital Video Application  

Science.gov (United States)

This paper reports the findings from an observational study of a digital video library system, DiVA, involving deaf students and students with other medical conditions affecting their use of video material. The Digital Video Applications (DiVA) system supports searching for and playing educational videos, and displays transcripts of the audio…

Colwell, Chetz; Jelfs, Anne; Mallett, Elizabeth

2005-01-01

 
 
 
 
121

Investigating the International Awareness of Students Meeting Their International Dimension Requirement through Course Offerings in a College of Agriculture  

Science.gov (United States)

Many U.S. universities are preparing their students to attain international awareness through various approaches. The College of Agricultural Sciences and Natural Resources (CASNR) at Oklahoma State University offers three international dimension undergraduate courses intended to provide students a formal educational opportunity to learn about…

Moriba, Samba; Edwards, M. Craig; Robinson, J. Shane; Cartmell, D. Dwayne, II; Henneberry, David M.

2012-01-01

122

Federal Student Loan Programs: Opportunities Exist to Improve Audit Requirements and Oversight Procedures. Report to Congressional Committees. GAO-10-668  

Science.gov (United States)

The Higher Education Opportunity Act of 2008, Pub. L. No. 110-315, mandated GAO (Government Accountability Office) to study the financial and compliance audits and reviews required or conducted for the Federal Family Education Loan (FFEL) program and the Federal Direct Student Loan (DL) program. The Department of Education's (Education) Office of…

Daly, Kay L.

2010-01-01

123

Consistent assignment of quantum probabilities  

International Nuclear Information System (INIS)

We pose and solve a problem concerning consistent assignment of quantum probabilities to a set of bases associated with maximal projective measurements. We show that our solution is optimal. We also consider some consequences of the main theorem in this paper in conjunction with Gleason’s theorem. Some potential applications to state tomography and probabilistic quantum secret-sharing scheme are discussed. (paper)

2012-02-24

124

Who Benefits from Homework Assignments?  

Science.gov (United States)

Using Dutch data on pupils in elementary school this paper is the first empirical study to analyze whether assigning homework has a heterogeneous impact on pupil achievement. Addressing potential biases by using a difference-in-difference approach, I find that the test score gap is larger in classes where everybody gets homework than in classes…

Ronning, Marte

2011-01-01

125

Complete NMR assignments of tubulosine.  

Science.gov (United States)

This article reports the structural elucidation of the Alangium alkaloid, tubulosine (1) on the basis of systematic 2D-NMR analyses (DEPT, COSY, TOCSY, NOESY, ROESY, HMQC and HMBC). The data obtained allowed the unambiguous assignment of all proton and carbon signals in 1 for the first time. PMID:22428233

Kantamreddia, Venkata Siva Satyanarayana; Wright, Colin W

2012-01-01

126

Requirements in the Overseas Employment and Domestic Connected Education for Radiological Technologists : Refers to Students Enrolled in the Department of Radiation  

International Nuclear Information System (INIS)

This study investigated the realities of information acquirements and its requirements in the overseas employment and domestic connected education for students at the department of radiation in order to provide basic information for developing the standard educational curriculum for future internationalization in the education of radiation and presenting its direction. The investigation implemented in this study was performed through a questionnaire with 688 students enrolled in the department of radiation. The conclusion of the investigation is summarized as follows : The answers for the question of 'No acquirements in the information of the overseas employment and connected education for radiological technologists' were 487 students (70.8%), and the reason that 'There are no chances in related education' was the highest rate, 424 students (61.6%), of the answers. In the education for the overseas employment, the answers for the question of 'Select a connected education program in school instead of study abroad' were the highest rate, 436 students (63.4%). The most concerned country for the overseas employment was 'Australia', 247 students (35.9%). As a result, answers for the interest, participation, need, and hope for the overseas employment showed high rates even though they demonstrated a low recognition level in the overseas employment. In addition, it is necessary to strategically plan an education program for this issue because all participants agree with the current stream.

2008-06-01

127

Requirements in the Overseas Employment and Domestic Connected Education for Radiological Technologists : Refers to Students Enrolled in the Department of Radiation  

Energy Technology Data Exchange (ETDEWEB)

This study investigated the realities of information acquirements and its requirements in the overseas employment and domestic connected education for students at the department of radiation in order to provide basic information for developing the standard educational curriculum for future internationalization in the education of radiation and presenting its direction. The investigation implemented in this study was performed through a questionnaire with 688 students enrolled in the department of radiation. The conclusion of the investigation is summarized as follows : The answers for the question of 'No acquirements in the information of the overseas employment and connected education for radiological technologists' were 487 students (70.8%), and the reason that 'There are no chances in related education' was the highest rate, 424 students (61.6%), of the answers. In the education for the overseas employment, the answers for the question of 'Select a connected education program in school instead of study abroad' were the highest rate, 436 students (63.4%). The most concerned country for the overseas employment was 'Australia', 247 students (35.9%). As a result, answers for the interest, participation, need, and hope for the overseas employment showed high rates even though they demonstrated a low recognition level in the overseas employment. In addition, it is necessary to strategically plan an education program for this issue because all participants agree with the current stream.

Han, Eun Ok; Kim, Boo Soon [Dept. of Radiologic Technology, Daegu Health College, Daegu (Korea, Republic of)

2008-06-15

128

Writing Assignments as a Continuum in Geoscience.  

Science.gov (United States)

This paper reviews attempts to introduce writing skills to undergraduate geoscience students, reports on the status of technical writing in geoscience curriculum, and describes a fully integrated approach to writing across the geosciences curriculum, based on a required sophomore-level technical writing course. The technical writing course leads…

Mirsky, Arthur

1991-01-01

129

Mapping Learning Outcomes and Assignment Tasks for SPIDER Activities  

Directory of Open Access Journals (Sweden)

Full Text Available Modern engineering programs have to address rapidly changing technical content and have to enable students to develop transferable skills such as critical evaluation, communication skills and lifelong learning. This paper introduces a combined learning and assessment activity that provides students with opportunities to develop and practice their soft skills, but also extends their theoretical knowledge base. Key tasks included self directed inquiry, oral and written communication as well as peer assessment. To facilitate the SPIDER activities (Select, Prepare and Investigate, Discuss, Evaluate, Reflect, a software tool has been implemented in the learning management system Moodle. Evidence shows increased student engagement and better learning outcomes for both transferable as well as technical skills. The study focuses on generalising the relationship between learning outcomes and assignment tasks as well as activities that drive these tasks. Trail results inform the approach. Staff evaluations and their views of assignments and intended learning outcomes also supported this analysis.

Lyn Brodie

2011-05-01

130

Developing Problem Solving and Communication Skills through Memo Assignments in a Management Science Course  

Science.gov (United States)

The authors describe how to structure a memo format for homework assignments in which a manager requests analysis of a particular issue from the student. The student must respond with a memo stating a recommendation and describing the solution approach. The results from using the memo format include improved student performance and professional…

Williams, Julie Ann Stuart; Reid, Randall C.

2010-01-01

131

Roommate Effects on Grades: Evidence from First-Year Housing Assignments  

Science.gov (United States)

This paper estimates the effect of students' background characteristics on the academic outcomes of their college roommates. It uses data from four classes of students at Wellesley College, where roommate assignment is credibly random, conditional on student responses to a housing preference form. In linear specifications, there are no peer…

McEwan, Patrick J.; Soderberg, Kristen A.

2006-01-01

132

Who benefits from homework assignments?  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract:Using Dutch data on pupils in elementary school this paper is the first empirical study that analyzes whether assigning homework has an heterogeneous impact on pupil achievement. Addressing potential biases that arise from unobserved school quality, pupil selection by exploiting different methods, I find that the test score gap is larger in classes where everybody gets homework than in classes where nobody gets homework. More precisely pupils belonging to the upper part of the socioe...

2008-01-01

133

Model Refinement Using Eigensystem Assignment  

Science.gov (United States)

IA novel approach for the refinement of finite-element-based analytical models of flexible structures is presented. The proposed approach models the possible refinements in the mass, damping, and stiffness matrices of the finite element model in the form of a constant gain feedback with acceleration, velocity, and displacement measurements, respectively. Once the free elements of the structural matrices have been defined, the problem of model refinement reduces to obtaining position, velocity, and acceleration gain matrices with appropriate sparsity that reassign a desired subset of the eigenvalues of the model, along with partial mode shapes, from their baseline values to those obtained from system identification test data. A sequential procedure is used to assign one conjugate pair of eigenvalues at each step using symmetric output feedback gain matrices, and the eigenvectors are partially assigned, while ensuring that the eigenvalues assigned in the previous steps are not disturbed. The procedure can also impose that gain matrices be dissipative to guarantee the stability of the refined model. A numerical example, involving finite element model refinement for a structural testbed at NASA Langley Research Center (Controls-Structures-Interaction Evolutionary model) is presented to demonstrate the feasibility of the proposed approach.

Maghami, Peiman G.

2000-01-01

134

Motivating Students  

Science.gov (United States)

This chapter from the book Tools for Teaching by Barbara Gross Davis is a great place to start for ideas and tips about increasing student motivation in your classes. The author presents a handy distillation of research on motivation and uses examples and anecdotes that bring this material to life. In addition to general strategies, this chapter addresses successful instructional behaviors, how to structure a course to motivate students, de-emphasizing grades and responding with other types of feedback to students, and tips to encourage students to complete assigned readings. A reference list points the way to more specific information.

Davis, Barbara G.

135

Windfarm layout as a senior electrical engineering student design project  

Energy Technology Data Exchange (ETDEWEB)

A proven senior design project is described in this paper. Students select equipment, make economic choices, and write a report for a windfarm electrical distribution system. Using topographical maps of potential sites increases realism, helping to make the design project well liked by students. The author has taught a course on Wind Engineering for the past 16 years to a total of 350 students. The design project in this course is the design of a windfarm in the 10 MW size range on an assigned section of land and to recommend one of two assigned wind turbines for installation. The bulk of the project is actually electrical distribution and engineering economics, in that the students select transformers, circuit breakers, and wire sizes to meet certain goals. The required knowledge of wind turbines is rather low and is easily obtained by students, so the project could be given in a variety of power engineering courses.

Johnson, G.L. (Kansas State Univ., Manhattan, KS (United States). Dept. of Electrical and Computer Engineering)

1993-05-01

136

Motivating Students to Do Homework  

Science.gov (United States)

How do you motivate students to do their homework? Some instructors make students' homework scores a significant percentage of the final course grade. In that case, how much course credit is required? Some instructors do not grade homework at all, instead relying on students' intrinsic motivation to learn the course material. Will this actually work? Some instructors might motivate students by having quiz and/or exam problems closely match the assigned homework problems. In this article, we report on the effectiveness of grade incentives, homework-based quiz problems, and intrinsic motivation for 16 semesters of introductory mechanics and introductory electricity and magnetism (E&M) courses at the United States Air Force Academy (USAFA) between fall 2008 and spring 2012.

Kontur, Frederick J.; Terry, Nathan B.

2014-05-01

137

Using Student Learning and Development Outcomes to Evaluate a First-Year Undergraduate Group Video Project  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Students in an interdisciplinary undergraduate introductory course were required to complete a group video project focused on nutrition and healthy eating. A mixed-methods approach to data collection involved observing and rating video footage of group work sessions and individual and focus group interviews. These data were analyzed and used to evaluate the effectiveness of the assignment in light of two student learning outcomes and two student development outcomes at the University of Minne...

2012-01-01

138

How to encourage university students to solve physics problems requiring mathematical skills: the 'adventurous problem solving' approach  

Science.gov (United States)

Teaching physics to first-year university students (in the USA: junior/senior level) is often hampered by their lack of skills in the underlying mathematics, and that in turn may block their understanding of the physics and their ability to solve problems. Examples are vector algebra, differential expressions and multi-dimensional integrations, and the Gauss and Ampčre laws learnt in electromagnetism courses. To enhance those skills in a quick and efficient way we have developed 'Integrating Mathematics in University Physics', in which students are provided with a selection of problems (exercises) that explicitly deal with the relation between physics and mathematics. The project is based on computer-assisted instruction (CAI), and available via the Internet (http://tnweb.tn.utwente.nl/onderwijs/; or http://www.utwente.nl/; search or click to: CONECT). Normally, in CAI a predefined student-guiding sequence for problem solving is used (systematic problem solving). For self-learning this approach was found to be far too rigid. Therefore, we developed the 'adventurous problem solving' (APS) method. In this new approach, the student has to find the solution by developing his own problem-solving strategy in an interactive way. The assessment of mathematical answers to physical questions is performed using a background link with an algebraic symbolic language interpreter. This manuscript concentrates on the subject of APS.

DeMul, Frits F. M.; Batlle, Cristina Martin i.; DeBruijn, Imme; Rinzema, Kees

2004-01-01

139

Solving the State Assignment Problem Using Stochastic Search Aided with Simulated Annealing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Problem statement: Solving the state assignment problem means finding the optimum assignment for each state within a sequential digital circuit. These optimum assignments will result in decreasing the hardware realization cost and increasing the reliability of the digital circuit. Unfortunately, the state assignment problem belongs to the class of nondeterministic polynomial time problems (NP complete) which requires heavy computations. Different attempts have been made towards solving...

Aly, Walid M.

2009-01-01

140

Utilizing Generalizability Theory to Investigate the Reliability of the Grades Assigned to Undergraduate Research Papers  

Science.gov (United States)

Background: Educational researchers have long espoused the virtues of writing with regard to student cognitive skills. However, research on the reliability of the grades assigned to written papers reveals a high degree of contradiction, with some researchers concluding that the grades assigned are very reliable whereas others suggesting that they…

Gugiu, Mihaiela R.; Gugiu, Paul C.; Baldus, Robert

2012-01-01

 
 
 
 
141

Stepping on Toes: The Delicate Art of Talking to Faculty about Questionable Assignments  

Directory of Open Access Journals (Sweden)

Full Text Available Working in an academic environment, the majority of my student interactions are based around a specific assignment. Every semester there is at least one assignment that comes across my reference desk that makes me throw my hands up in exasperation (such as: a scavenger hunt that was written before we moved much of our content [...

Ellie Collier

2009-03-01

142

Stepping on Toes: The Delicate Art of Talking to Faculty about Questionable Assignments  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Working in an academic environment, the majority of my student interactions are based around a specific assignment. Every semester there is at least one assignment that comes across my reference desk that makes me throw my hands up in exasperation (such as: a scavenger hunt that was written before we moved much of our content [...

Ellie Collier

2009-01-01

143

The multi-objective constrained assignment problem  

Science.gov (United States)

Assignment problems are a common area of research in operational research and computer science. Military applications include military personnel assignment, combat radio frequency assignment, and weapon target assignment. In general, assignment problems can be found in a wide array of areas, from modular placement to resource scheduling. Many of these problems are very similar to one another. This paper models and compares some of the assignment problems in literature. These similar problems are then generalized into a generalized multi-objective problem, the constrained assignment problem. Using a multi-objective genetic algorithm, we solve an example of a constrained assignment problem called the airman assignment problem. Results show that good solutions along the interior portion of the Pareto front are found in earlier generations and later generations produce more exterior points.

Kleeman, Mark P.; Lamont, Gary B.

2007-05-01

144

Requirements for the Success of the Integration Program of Disabled Students in the Regular Schools from the Perspective of the Teachers of the Learning Resources Rooms  

Directory of Open Access Journals (Sweden)

Full Text Available The purpose of this study is to identify the requirements for the success of the integration program and to find out the causes of success and to provide optimal services for the students with disabilities in regular schools. The study attempts to answer the following questions: 1. What are the most important requirements of the success of the integration of disabled persons in regular schools from the viewpoint of the teachers of the learning resources rooms2. Are there any statistically significant differences to the level of (? (0.05 ? in the requirements of disabilities program success of integration in regular schools from the teachers of learning resources rooms- perspectives attributed to the variable of gender? 3. Are there any statistically significant differences to the level of (? (0.05 ? in the requirements of disabilities program success of integration in regular schools from the teachers of learning resources rooms- perspectives attributed to the variable the years of experience? 4. What is the most appropriate educational option for students with disabilities (The academic integration, social integration, classes attached to the regular school, general education class with their peers, the integration program of the full-day, partial day program integration, from the viewpoint of the teachers of the learning resources rooms? The study sample consisted of (140 male and female teachers in the learning resources rooms in public and private schools in the Directorate of Amman. These were selected in a simple random manner. And a list of assessment was used to collect information consisting of 70 items, distributed on seven axes (teachers and administration, school environment, supporting services, awareness, students with disabilities, the type of the program which is the most important from the viewpoint of the teachers of the learning resources rooms. The stability and reliability of the instrument were verified using the test and re-test method. The results indicate that the requirements of the success of the integration program, appeared in descending order, were as follows: awareness, support services, integration programs, the domain of the school environment, teachers, students with disabilities, The results also indicate that the program that is the most important and appropriate for students were arranged as follows: the program of social integration, the academic integration program, the program of the integrated public class, program of partial integration, program of private class attached to the regular school, the long- term integration program (Full-day.

Jihad At-Turki

2012-01-01

145

Pinellas Plant magnetics mission assignment  

Energy Technology Data Exchange (ETDEWEB)

This report documents the magnetics mission assignment transfer of responsibility from Allied Signal, Inc., Kansas City Division (KCD) [formerly Bendix] to GE Neutron Devices (GEND). For the most part, this report is presented in summary form and is intended to serve as a guide for future work transfer mission assignments. It is organized in such a manner as to carry the reader through some of the early transfer activities, documentation, and key milestones. The scope of work and the implementation methods used to enact the transfer are reviewed. An analysis of the current and future magnetics work load is provided, concluding with specific business strategies which will assist GEND in supporting this work load. Throughout the transfer action, valuable lessons were learned. These lessons are provided for future guidance. The positive actions which were taken to facilitate the transfer, as well as notable deficiencies in planning and execution processes, are discussed. Shortcomings are in no way implied or directed toward any agency involved in the transfer. To the contrary, all organizations and individuals involved in the transfer were most cooperative and interested only in the successful completion of the transfer. 26 figs., 4 tabs.

Figueredo, E.G.

1989-08-21

146

Assigning environmental variables to observed biological changes.  

Science.gov (United States)

A method for assigning environmental variables to observed biological changes in benthic communities is proposed. The approach requires biological and environmental sampling at the same sites. Additionally, a biological gradient or trend such as a change in observed species or a significant change in their relative abundances is necessary in order to connect the biological observations to the environmental measurements. Whether there is a statistical significant correspondence between the environmental measurements and the biological changes is tested after quantifying the biological changes by using the community disturbance index (CDI). Finally, the environmental variables that are most strongly associated with the biological changes are identified, and it is proposed that these are strong candidates as the pollutants responsible for the biological changes observed. However, this cannot be confirmed using the monitored data only. The approach is tested on data collected in monitoring surveys at the Ekofisk oil field in the North Sea. The results indicate the method is feasible for assigning environmental variables to observed biological changes. PMID:15340770

Flĺten, Geir Rune; Botnen, Helge; Grung, Bjřrn; Kvalheim, Olav M

2004-10-01

147

Incorporating Inquiry into Upper-Level Undergraduate Homework Assignments: The Mini-Journal  

Science.gov (United States)

The US National Science Education Standards (2000) state that science should be taught through inquiry. The five essential features of classroom inquiry are that the leaner (i) engages in scientifically oriented questions, (ii) gives priority to evidence in responding to questions, (iii) formulates explanations from evidence, (iv) connects explanations to scientific knowledge, and (v) communicates and justifies explanations. One difficulty in achieving this vision at the university level lies in the common perception that inquiry be fully open and unstructured, and that its implementation will be impractical due to time and material constraints. In an NSF-funded project, "CUES: Connecting Undergraduates to the Enterprise of Science," faculty developed new inquiry-based laboratory curriculum materials using a "mini-journal" approach, which is designed as an alternative to the cookbook laboratory and represents the way that scientists do science. Here we adapt this approach to a homework assignment in an upper-level Planetary Science class, and show that inquiry is achievable in this setting. Traditional homeworks in this class consisted of problem sets requiring algebraic manipulation, computation, and in most cases an appraisal of the result Longer questions are broken down into chunks worth 1 to 4 points. In contrast, the mini-journal is a short article that is modeled in the way that scientists do and report science. It includes a title, abstract, introduction (with clear statement of the problem to be tackled), a description of the methods, results (presented as both tables and graphs), a discussion (with suggestions for future work) and a list of cited work. Students devise their research questions and hypothesis from the paper based on a logical next step in the investigation. Guiding questions in the discussion can assist the students ("it would be interesting to evaluate the effect of ..."). Students submit their own minijournal, using the same journal-style format. A detailed grading rubric was supplied with the mini-journal, with credit given for formatting, accuracy of calculation, and quality of intepretation and discussion. In the examples we present, research is conducted via spreadsheet modeling, where the students develop their own spreadsheets. The key differences between the old and new formats include (i) the active participation of the students in defining the problem that they will pursue, (ii) the open-ended nature of the inquiry, such that students need to recognize when they have enough information to answer their question, (iii) presentation of results in graphical and tabular formats, and (iv) a written discussion of their findings. Based on detailed student and instructor feedback, our conclusions are: (i) Limited inquiry is achievable in upper-level science homework assignments, and is transferable to other topics and classes (ii) Students experience discomfort on being presented with an open-ended assignment, but like the freedom to define their own homework problem (iii) Students recognize that the reading, writing and critical thinking skills employed in the minijournal format increase their understanding (iv) Students suggest a combination of minijournal and traditional homework formats in this class, or replacing midterm exams with minijournals (v) Student written comments are far more useful than Likert scale responses in assessing instructional techniques and effectiveness

Whittington, Alan; Speck, Angela; Witzig, Stephen; Abell, Sandra

2010-05-01

148

On pole structure assignment in linear systems.  

Czech Academy of Sciences Publication Activity Database

pole structure assignmentKód oboru RIV: BC - Teorie a systémy ?ízeníImpakt faktor: 1.124, rok: 2009 http://library.utia.cas.cz/separaty/2009/AS/zagalak-on pole structure assignment in linear systems.pdf

Loiseau, J.-J.; Zagalak, Petr

149

Assigning uncertainties to scientific data  

Energy Technology Data Exchange (ETDEWEB)

Long-standing problems of assigning uncertainties to scientific data became apparent in recent years when uncertainty information (covariance files) had to be added to applications-oriented large libraries of evaluated nuclear data such as ENDF and JEF. Questions arose about the best way to express uncertainties, the meaning of statistical and systematic errors, the origin of correlations and the construction of covariance matrices, the combination of uncertain data from different sources, the general usefulness of results that are strictly valid only for Gaussians or only for linear statistical models, and so forth. Conventional statistical theory is often unable to give unambiguous answers and tends to fail when statistics are poor, making prior information crucial. Modern probability theory, on the other hand, incorporating results from information, decision, and group theory, is shown to provide straight and unique answers to such questions and to deal easily with prior information and small samples.

Froehner, F.H. [Forschungszentrum Karlsruhe (Germany). Inst. fuer Neutronenphysik und Reaktortechnik

1997-05-01

150

Spin assignments in 72 As  

International Nuclear Information System (INIS)

Available as short communication only. Extensive experimental and theoretical work has been done on the structure of N=Z=38,40, A=70 nuclei for almost two decades. The nuclei far for stability in this mass region display a rich variety of shape coexistence phenomena related to the changing importance of shell gaps associated with both spherical and deformed shapes. The study of odd-odd nuclei can give important information concerning role of the proton-neutron interaction, recently calculations based on VAMPIR models were extended to include p-n interactions already in the main field by involving complex HFB transformations, so that states with arbitrary spin and parity in even-even and odd-odd nuclei could be treated. As a part of a systematic study undertaken to investigate the structure of odd-odd As nuclei the level scheme 72 As was established employing 59 Co (16 O, 2 p n) 72 As and 47 Ti (28 Si, 3 p) 72 As at energies between 46 and 55 MeV and 95 MeV, respectively. In the following we report on the selected gamma spectroscopic data on 72 As; further measurements were carried out using 56 Fe (19 F, 2 p n) 72 As reactions. We measured yield functions in the range 52-64 MeV bombarding energy and gamma ray angular distribution at seven angles between 0 and 90 degrees, to assign spins to the new levels introduced as a result of previous investigations, thereby facilitating a more detailed comparison with theory. To analyse angular distributions we developed for extracting spins and mixing ratio values, following the approach suggested by Der Mateosian and Sunyar. The analysis of our data allowed us to unambiguously assign spins to six levels and tentatively to other two. (Author) 3 Refs

1994-01-01

151

Stress assignment in reading Italian polysyllabic pseudowords.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In four naming experiments we investigated how Italian readers assign stress to pseudowords. We assessed whether participants assign stress following distributional information such as stress neighborhood (the proportion and number of existent words sharing orthographic ending and stress pattern) and whether such distributional information affects naming speed. Experiments 1 and 2 tested how readers assign stress to pseudowords. The results showed that participants assign stress on the basis ...

Sulpizio, Simone; Arduino, Lisa S.; Paizi, Depina; Burani, Cristina

2013-01-01

152

Homework: Helping Students Achieve.  

Science.gov (United States)

Students and parents are offered advice in this booklet on how to make the most of homework. The booklet first reviews the basic reasons for assigning homework: homework helps students learn better and faster, helps families become involved with education, communicates the school's high expectations, and helps students develop self-discipline and…

Bradshaw, Jim; Amundson, Kristen J.

153

A Hybrid Algorithm for Lightpath Assignment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper focuses on the assignment of multiple-wavelength lightpaths and presents a computationally simple algorithm to increase the number of simultaneous lightpath assignments in optical networks. Several approaches for lightpath assignment have been proposed in the literature, and most of them involve some variation of ...

Kaushik, Neena R.; Figueira, Silvia M.; Chiappari, Stephen A.

2009-01-01

154

Lexical Stress Assignment in Italian Developmental Dyslexia  

Science.gov (United States)

Stress assignment to Italian polysyllabic words is unpredictable, because stress is neither marked nor predicted by rule. Stress assignment, especially to low frequency words, has been reported to be a function of stress dominance and stress neighbourhood. Two experiments investigate stress assignment in sixth-grade, skilled and dyslexic, readers.…

Paizi, Despina; Zoccolotti, Pierluigi; Burani, Cristina

2011-01-01

155

I'll Begin My Statistics Assignment Tomorrow: The Relationship between Statistics Anxiety and Academic Procrastination.  

Science.gov (United States)

Statistics anxiety, which is experienced by as many as 80% of graduate students, has been found to weaken performance in statistics and research methodology courses. This study examined the prevalence of procrastination on statistics assignments among graduate students and the relationship between academic procrastination and six dimensions of…

Onwuegbuzie, Anthony J.

156

Applied and Transformed Understanding in Introductory Psychology: Analysis of a Final Essay Assignment  

Science.gov (United States)

This paper describes a case study of the impact of the introductory psychology course on students' understanding of their life experiences and course-related ideas. Student responses to a final essay assignment were analyzed to construct composites for areas of applied and transformed understanding. Results are important for psychology teachers…

Clark, Kevin M.

2010-01-01

157

Student Perceptions of Online Homework in Introductory Finance Courses  

Science.gov (United States)

The author examined student perceptions concerning online homework assignments in an introductory finance class. In general, students felt that online homework was preferable to traditional homework assignments that are turned in to the instructor. In addition, students reported that the homework assignments increased their understanding of the…

Smolira, Joseph C.

2008-01-01

158

ncIDP-assign : a SPARKY extension for the effective NMR assignment of intrinsically disordered proteins  

DEFF Research Database (Denmark)

We describe here the ncIDP-assign extension for the popular NMR assignment program SPARKY, which aids in the sequence-specific resonance assignment of intrinsically disordered proteins (IDPs). The assignment plugin greatly facilitates the effective matching of a set of connected resonances to the correct position in the sequence by making use of IDP random coil chemical shifts. AVAILABILITY: The ncIDP-assign extension is available at http://www.protein-nmr.org/.

Tamiola, Kamil; Mulder, Frans A.A.

2011-01-01

159

Faculty Workload: Towards a More Equitable Assignment and Evaluation  

Directory of Open Access Journals (Sweden)

Full Text Available This paper reviews selected literature on workload, noting critical issues and efforts directed at a more equitable estimation, assignment and evaluation of faculty workload. It underlines the need to consider all factors and aspects of faculty work in assigning and evaluating workload.A flexible approach to evaluation is advocated since faculty have different strengths and interests and departments have different demands and requirements. It is also suggested that flexible formulas may be applied in evaluating faculty at the College of The Bahamas and that they need not be measured in an identical or uniform manner.

Chipman-Johnson, Rhonda

1995-01-01

160

When Acceptance Isn't Enough: Helping ESL Students become Successful Writers.  

Science.gov (United States)

Discusses how 4 teachers handle writing assignments, response, grading, portfolios, time allotted for completion of assignments, and classroom environment for English-as-a-second-language students. (RS)

Carroll, Pamela Sissi; And Others

1996-01-01

 
 
 
 
161

Assigning Students to Edit Wikipedia: Four Case Studies  

Science.gov (United States)

During the 2010-11 academic year, the Wikimedia Foundation, the nonprofit organization that supports Wikipedia, worked with professors at universities across the United States who were interested in using Wikipedia as a teaching tool in their classrooms through a pilot version of the Wikipedia Education Program. This article presents a case study…

Carver, Brian W.; Davis, Rochelle; Kelley, Robin T.; Obar, Jonathan A.; Davis, Lianna L.

2012-01-01

162

Explaining Students' Appraisal of Lectures and Student-Activating Teaching: Perceived Context and Student Characteristics  

Science.gov (United States)

During lectures, some students are continuously focused and attentive, whereas others tend to be bored, jittery, or inattentive. The same might happen when students are given student-activating assignments. Some students simply love one type of instruction, whereas others tend to resent it. Moreover, it is not the context itself, but the context…

Struyven, Katrien; Dochy, Filip; Janssens, Steven

2012-01-01

163

Job assignments, intrinsic motivation and explicit incentives  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper considers the interplay of job assignments with the intrinsic and extrinsic motivation of an agent. Job assignments influence the self confidence of the agent, and thereby his intrinsic motivation. Monetary reward allow the principal to complement intrinsic motivation with extrinsic incentives. The main result is that the principal chooses an inefficient job assignment rule to enhance the agent's intrinsic motivation even though she can motivate him with monetary rewards. This show...

2008-01-01

164

Articles as Assignments - Modalities and Experiences of Wikipedia Use in University Courses  

Science.gov (United States)

In spite of perceived quality deficits, Wikipedia is a popular information resource among students. Instructors increasingly take advantage of the positive student attitude through actively integrating Wikipedia as a learning tool into university courses. The contribution raises the question if Wikipedia assignments in university courses are suited to make complex research, editing and bibliographic processes through which scholarship is produced transparent to students and to effectively improve their research and writing skills.

Wannemacher, Klaus

165

Protein subfamily assignment using the Conserved Domain Database  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Domains, evolutionarily conserved units of proteins, are widely used to classify protein sequences and infer protein function. Often, two or more overlapping domain models match a region of a protein sequence. Therefore, procedures are required to choose appropriate domain annotations for the protein. Here, we propose a method for assigning NCBI-curated domains from the Curated Domain Database (CDD that takes into account the organization of the domains into hierarchies of homologous domain models. Findings Our analysis of alignment scores from NCBI-curated domain assignments suggests that identifying the correct model among closely related models is more difficult than choosing between non-overlapping domain models. We find that simple heuristics based on sorting scores and domain-specific thresholds are effective at reducing classification error. In fact, in our test set, the heuristics result in almost 90% of current misclassifications due to missing domain subfamilies being replaced by more generic domain assignments, thereby eliminating a significant amount of error within the database. Conclusion Our proposed domain subfamily assignment rule has been incorporated into the CD-Search software for assigning CDD domains to query protein sequences and has significantly improved pre-calculated domain annotations on protein sequences in NCBI's Entrez resource.

Marchler-Bauer Aron

2008-11-01

166

Dynamic sector processing using 2D assignment for rotating radars  

Science.gov (United States)

Electronically scanned array radars as well as mechanically steered rotating antennas return measurements with different time stamps during the same scan while sweeping form one region to another. Data association algorithms process the measurements at the end of the scan in order to satisfy the common one measurement per track assumption. Data processing at the end of a full scan resulted in delayed target state update. This issue becomes more apparent while tracking fast moving targets with low scan rate sensors. In this paper, we present new dynamic sector processing algorithm using 2D assignment for continuously scanning radars. A complete scan can be divided into sectors, which could be as small as a single detection, depending on the scanning rate and sparsity of targets. Data association followed by filtering and target state update is done dynamically while sweeping from one end to another. Along with the benefit of immediate track updates, continuous tracking results in challenges such as multiple targets spanning multiple sectors and targets crossing consecutive sectors. Also, associations performed in the current sector may require changes in association done in previous sectors. Such difficulties are resolved by the proposed 2D assignment algorithm that implements an incremental Hungarian assignment technique. The algorithm offers flexibility with respect to assignment variables for fusing of measurements received in consecutive sectors. Furthermore the proposed technique can be extended to multiframe assignment for jointly processing data from multiple scanning radars. Experimental results based on rotating radars are presented.

Habtemariam, Biruk K.; Tharmarasa, R.; Pelletier, M.; Kirubarajan, T.

2011-09-01

167

Wavelength Assignment for All-to-All Broadcast in Wavelength Division Multiplexing Optical Ring  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A novel wavelength assignment method is proposed for a bidirectional WDM ring network and the minimum number of wavelengths required to support all-to-all broadcast is determined. The new method can assign each wavelength directly and simultaneously to a group of non-overlapping connections on an N-node ring without the aid of any table or matrix. The presented wavelength assignment method is much faster than other direct methods with explicit -formulas previously reported for WDM ring...

Sabrigiriraj M; Meenakshi M.; Roopkumar R

2009-01-01

168

Probability assignment in a quantum statistical model  

CERN Multimedia

The evolution of a quantum system, appropriate to describe nano-magnets, can be mapped on a Markov process, continuous in $\\beta$. The mapping implies a probability assignment that can be used to study the probability density (PDF) of the magnetization. This procedure is not the common way to assign probabilities, usually an assignment that is compatible with the von Neumann entropy is made. Making these two assignments for the same system and comparing both PDFs, we see that they differ numerically. In other words the assignments lead to different PDFs for the same observable within the same model for the dynamics of the system. Using the maximum entropy principle we show that the assignment resulting from the mapping on the Markov process makes less assumptions than the other one. Using a stochastic queue model that can be mapped on a quantum statistical model, we control both assignments on compatibility with the Gibbs procedure for systems in thermal equilibrium and argue that the assignment resulting fro...

Lemmens, L F; Bakar, Burhan

2006-01-01

169

USAir`s fleet assignment model  

Energy Technology Data Exchange (ETDEWEB)

USAir`s FAM is a major component of a new workstation based schedule development environment. FAM combines the use of mixed-integer programming to generate initial assignments with interchange procedures to improve assignments with respect to operational criteria. FAMs design and operational features will be presented.

Hoffman, K.

1994-12-31

170

Stress Assignment in Reading Italian Polysyllabic Pseudowords  

Science.gov (United States)

In 4 naming experiments we investigated how Italian readers assign stress to pseudowords. We assessed whether participants assign stress following distributional information such as stress neighborhood (the proportion and number of existent words sharing orthographic ending and stress pattern) and whether such distributional information affects…

Sulpizio, Simone; Arduino, Lisa S.; Paizi, Despina; Burani, Cristina

2013-01-01

171

Crystal spectra and vibrational assignments in ?-resorcinol  

International Nuclear Information System (INIS)

The infrared and Raman spectra of ?-resorcinol crystals are investigated at low temperatures. Fine structure in the vibrational exciton states are resolved. Symmetry assignments of the crystal and molecular transitions are proposed based on the polarization properties of the bands. Most of the earlier assignments are revised

1981-01-01

172

Assignment of element and isotope factors  

International Nuclear Information System (INIS)

Element and isotope factors are assigned in the NICS internal accounting system at the Exxon Fuel Fabrication Facility on the basis of coded information included on the material transfer documents. This paper explains more fully the manner in which NICS assigns these factors

1984-06-01

173

Mini-Journals: Incorporating Inquiry, Quantitative Skills and Writing into Homework Assignments for Geochemistry and Planetary Science  

Science.gov (United States)

As part of an NSF-funded project, "CUES: Connecting Undergraduates to the Enterprise of Science," new inquiry-based homework materials were developed for two upper-level classes at the University of Missouri: Geochemistry (required for Geology majors, fulfills the computing requirement by having 50% of the grade come from five spreadsheet-based homework assignments), and Solar System Science (open to seniors and graduate students, co-taught and cross-listed between Geology and Physics & Astronomy). Inquiry involves activities where the learner engages in scientifically oriented questions, gives priority to evidence in responding to questions, formulates explanations from evidence, connects explanations to scientific knowledge, and communicates and justifies explanations. We engage students in inquiry-based learning by presenting homework exercises as "mini-journal" articles that follow the format of a scientific journal article, including a title, authors, abstract, introduction, methods, results, discussion and citations to peer-reviewed literature. The mini-journal provides a scaffold and serves as a springboard for students to develop and carry out their own follow-up investigation. They then present their findings in the form of their own mini-journal. Mini-journals replace traditional homework problem sets with a format that more directly reflects and encourages scientific practice. Students are engaged in inquiry-based homework which encompass doing, thinking, and communicating, while the mini-journal allows the instructor to contain lines of inquiry within the limits posed by available resources. In the examples we present, research is conducted via spreadsheet modeling, where the students develop their own spreadsheets. Example assignments from Geochemistry include "Trace Element Partitioning During Mantle Melting and MORB Crystallization" and "Isotopic Investigations of Crustal Evolution in the Midcontinent US". The key differences between the old and new formats include (i) active participation of the students in defining the question/problem that they will pursue, within well-defined boundaries, (ii) open-ended nature of the inquiry, so that students need to recognize when they have enough information to answer their question, (iii) extensive spreadsheet manipulation and presentation of results in graphical and tabular formats, and (iv) a written discussion of their findings. Grading is weighted more towards how the problem was addressed, and how findings are presented and interpreted, and less on actual numerical answers. Survey responses from students indicate that they experience discomfort on being presented with an open-ended assignment, but like the freedom to define their own problem. Students also recognize that reading, writing and critical thinking skills employed in the minijournal format increase their understanding of content. The combination of calculation and writing components make these assignments particularly useful for classes designated as "computer-based", and/or "writing intensive" (or similar designations).

Whittington, A. G.; Speck, A.; Witzig, S.

2011-12-01

174

Designing Cancer-Killing Artificial Viruses to Improve Student Understanding of Microbiology  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Our objective was to assess the effectiveness of a “learning by designing” group project used in a lower-division Microbiology course. Students used knowledge gained from the course to design an artificial virus that would kill cancer cells. The assignment required groups to integrate the individual course topics into a unified, complex understanding of the field of microbiology. Throughout the course, students and the instructor collaborated in creating a rubric to evaluate the groups’...

Andy Kuniyuki; Gwen Sharp

2011-01-01

175

Wavelength Assignment In WDM Optical Networks  

Directory of Open Access Journals (Sweden)

Full Text Available This paper analyses the wavelength assignment problem in optical WDM networks. First, the random wavelength assignment algorithm is compared with the first-fit wavelength assignment algorithm, then the sparse wavelength conversion case is compared with no wavelength conversion and full wavelength conversion cases. These comparisons are done on the basis of blocking probability and number of links; numbers of channels are kept constant whereas the response is calculated by varying the load per link (in Erlangs. The blocking probability in case of random algorithm is always greater than first-fit wavelength assignment algorithm. The blocking probability is minimum in case of wavelength conversion, whereas in case of no conversion, the first-fit algorithm has better results as compared to that of random wavelength assignment algorithm and also for multiple iterations. The throughput is achieved better compared to the previous works thereby increasing the performance.

Mariya Daisy.S , Helina Rajini.J

2013-06-01

176

Efficient Credit Assignment through Evaluation Function Decomposition  

Science.gov (United States)

Evolutionary methods are powerful tools in discovering solutions for difficult continuous tasks. When such a solution is encoded over multiple genes, a genetic algorithm faces the difficult credit assignment problem of evaluating how a single gene in a chromosome contributes to the full solution. Typically a single evaluation function is used for the entire chromosome, implicitly giving each gene in the chromosome the same evaluation. This method is inefficient because a gene will get credit for the contribution of all the other genes as well. Accurately measuring the fitness of individual genes in such a large search space requires many trials. This paper instead proposes turning this single complex search problem into a multi-agent search problem, where each agent has the simpler task of discovering a suitable gene. Gene-specific evaluation functions can then be created that have better theoretical properties than a single evaluation function over all genes. This method is tested in the difficult double-pole balancing problem, showing that agents using gene-specific evaluation functions can create a successful control policy in 20 percent fewer trials than the best existing genetic algorithms. The method is extended to more distributed problems, achieving 95 percent performance gains over tradition methods in the multi-rover domain.

Agogino, Adrian; Turner, Kagan; Mikkulainen, Risto

2005-01-01

177

Design requirements: conditioners or conditioned  

DEFF Research Database (Denmark)

Considering how information systems for designers should be like, it is important to understand how designers enrich their knowledge during the design process. What triggers the queries, what strategies they use and what factors influence their behaviour in relation to information seeking? What influence has the information accessed on, for instance, the generation of design requirements? A commonly accepted view of the design process is that designers do not go from analysis to synthesis in a linear way. In fact, it is sometimes only when a solution devised that a designer is able to detect and understand important issues and requirements of the given problem. It is for this reason that the way a first approach to the design plays a very important role. Observations on design processes show that some designers devise a solution very early and some construct the solution trough a more elaborated process. By asking designers to write their interpretation of the problem shortly after having received the designbrief it can be seen that there is a tendency to represent design assignments in a problem or in a solution oriented way. Differences in these tendencies have been observed to have a great influence on the quality of the results and on the information seeking behaviour of the designers. Moreover, the generation of design conditions or design requirements during the process seems to be affected by this as well. The objectives of this research are twofold. Firstly, it intends to find whether and how early representations of the design assignment condition the design process. Secondly, it intends to find what aspects in the information presented, enable a design team to generate important design requirements for the given assignment. How do early representations influence information seeking behaviour? How do information seeking behaviour and the generation of design requirements influence each other? In two studies the role of early representations will be analysed. The first study on the flexible workspace will be focused on how differences in early representations influence the information seeking behaviour, the quality of the results and the generation of design requirements. The second study on the luggage carrier for bicycles shows the relation between information seeking behaviour and the generation of design requirements. In both studies participants were senior design students from the faculty of Industrial Design Engineering (IDE) at Delft University of Technology.

Restrepo-Giraldo, John Dairo; Christiaans, Henri

2003-01-01

178

Automated Assignment of Proposals to Reviewers  

Science.gov (United States)

A computer program automates the process of selecting unbiased peer reviewers of research proposals submitted to NASA. Heretofore, such selection has been performed by manual searching of two large databases subject to a set of assignment rules. One database lists proposals and proposers; the other database lists potential reviewers. The manual search takes an average of several weeks per proposal. In contrast, the present software can perform the selection in seconds. The program begins by selecting one entry from each database, then applying the assignment rules to this pair of entries. If and only if all the assignment rules are satisfied, the chosen reviewer is assigned to the chosen proposal. The assignment rules enforced by the program are (1) a maximum allowable number of proposals assigned to a single reviewer; (2) a maximum allowable number of reviewers assigned to a single proposal; (3) if the proposing team includes a member affiliated with an industry, then the reviewer must not be affiliated with any industry; and (4) the reviewer must not be a member of the proposing team or affiliated with the same institution as that of a member of the proposing team.

Kantak, Anil; Kantak, Anil

2006-01-01

179

On the Bicriterion Multi Modal Assignment Problem  

DEFF Research Database (Denmark)

We consider the bicriterion multi modal assignment problem which is a new generalization of the classical linear assignment problem. A two-phase solution method using an effective ranking scheme is presented. The algorithm is valid for generating all nondominated criterion points or an approximation. Extensive computational results are conducted on a large library of test instances to test the performance of the algorithm and to identify hard test instances. Also, test results of the algorithm applied to the bicriterion assignment problem is given. Here our algorithm outperforms all previously known exact solution methods for this problem class.

Pedersen, Christian Roed; Nielsen, L.R.

2005-01-01

180

Recognizing the "Transformational" in Preservice Digital Literacy Assignments  

Science.gov (United States)

The authors review and evaluate a Teaching Methods course in Language and Literacy, one which focuses on multiple literacies, including digital literacy and critical literacy. The course is offered in a laptop-based university program. In this article, the authors outline the context of the multiple literacies course, its resources and assignments as well as their instructional goals. Their qualitative data sources include student-created digital artifacts such as digital literacy stories and digital book talks. The researchers draw from cross-program data based on hundreds of student reflections and one-on-one interviews. The authors conclude that there are indications from their data analysis that suggest that digital literacy supports the development of "transformative elements" that can extend beyond the teacher training program.

Robertson, Lorayne; Hughes, Janette

 
 
 
 
181

The ICAP (Interactive Course Assignment Pages) Publishing System  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The ICAP publishing system is an open source custom content management system that enables librarians to easily and quickly create and manage library help pages for course assignments (ICAPs), without requiring knowledge of HTML or other web technologies. The system's unique features include an emphasis on collaboration and content reuse and an easy-to-use interface that includes in-line help, simple forms and drag and drop fun...

Margaret Mellinger; Kim Griggs

2008-01-01

182

AUTO : Disassembly of a car engine. A first year assignment. Aarhus School of Architecture 2010  

DEFF Research Database (Denmark)

AUTO is the first assignment that the students of Architecture are introduced to at the Aarhus school of Architecture. The aim is to give students an understanding of design through a generic working method. This by disassembling a car engine and staging its components through a series of castings in plaster. The assignment can be as an implementation of a research into teaching. Thus the study method is based on a generative research method that the present author acquired while conducting research work for a Ph.D project.

Gammelgaard Nielsen, Anders; Aagaard, Tine

2011-01-01

183

Reading assignment 06 - Linguistics 8806 (group 3)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Reading assignment 06 - PART I. BEGINNING LINGUISTICS: AN INTRODUCTION TO THE STUDY OF LANGUAGE. Key topics: 1) Language and communication; and 2) Understanding linguistic methods. Academic year 2009-2010 (Course credits: 12 (15 ECTS)).

Mun?oz Baell, Irma Mari?a

2010-01-01

184

Reading assignment 10 - Linguistics 8806 (group 3)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Reading assignment 10 - PART II. AN INTRODUCTION TO THE HISTORY OF LINGUISTICS. Key topic: Nineteenth-century linguistics: Historical linguistics. Academic year 2009-2010 (Course credits: 12 (15 ECTS)).

Mun?oz Baell, Irma Mari?a

2010-01-01

185

Assignment of Optical Spectra for Vanadyl Complexes.  

Science.gov (United States)

An empirical correlation between e.s.r. hyperfine splittings and values of the ratio of axial to equatorial charge obtained from optical spectra is presented which makes possible a consistent set of optical assignments.

H. A. Kuska M. T. Rogers

1965-01-01

186

Fuzzy Assignment Procedure based on Categories' Boundaries  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We presented a procedure for multicriteria assignment problems. Assignment to a category is based on the comparison between an action and categories?s boundaries. Boundary is represented by the least typical action that can be included in the category, and is considered as the category?s inclusion threshold. Comparison is executed considering performance on evaluation criteria and calculation of a fuzzy inclusion relation, generalizing preference relations model with concordance and...

George Rigopoulos; John Psarras; Askounis, Dimitrios T.

2008-01-01

187

Eigenvalue/eigenvector assignment using output feedback  

Science.gov (United States)

The problem of pole-assignment in a linear time-invariant multivariable system using output feedback is considered. New sufficient conditions are derived to assign an almost arbitrary set of min (n, m+r-1) distinct eigenvalues, where n, m, and r are the number of states, inputs, and outputs, respectively. The analysis also highlights the freedom in selection of closed-loop eigenvectors which can be used for response shaping.

Srinathkumar, S.

1978-01-01

188

The process of failing occupational therapy students: a staff perspective  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Assigning a fail grade, particularly when it results in the termination of a career goal, is a taboo and taken-for-granted aspect of an assessor's role. Hermeneutics provided the main framework for interpreting the subjective and objective experiences of both academic and fieldwork supervisors during this process. An incremental research design, using a principal and two supplementary methods was used to investigate the minutiae of assessing whether a student has achieved the required st...

Ilott, Irene

1993-01-01

189

A preliminary assessment of the assignment of Intermediate Level Waste streams to designs of transport containers  

International Nuclear Information System (INIS)

This paper considers the assignment of ILW to designs of transport container. Estimates are made of the radiation levels penetrating the transport containers and assesses the duration of any storage required prior to transportation. (author)

1984-01-01

190

The Impact of a Classroom-Based Guidance Program on Student Performance in Community College Math Classes  

Science.gov (United States)

Passing through remedial and required math classes poses a significant barrier to success for many community college students. This study uses random assignment to investigate the impact of a "light-touch" intervention, where an individual visited math classes a few times during the semester, for a few minutes each time, to inform…

Butcher, Kristin F.; Visher, Mary G.

2013-01-01

191

Flexible taxonomic assignment of ambiguous sequencing reads  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background To characterize the diversity of bacterial populations in metagenomic studies, sequencing reads need to be accurately assigned to taxonomic units in a given reference taxonomy. Reads that cannot be reliably assigned to a unique leaf in the taxonomy (ambiguous reads are typically assigned to the lowest common ancestor of the set of species that match it. This introduces a potentially severe error in the estimation of bacteria present in the sample due to false positives, since all species in the subtree rooted at the ancestor are implicitly assigned to the read even though many of them may not match it. Results We present a method that maps each read to a node in the taxonomy that minimizes a penalty score while balancing the relevance of precision and recall in the assignment through a parameter q. This mapping can be obtained in time linear in the number of matching sequences, because LCA queries to the reference taxonomy take constant time. When applied to six different metagenomic datasets, our algorithm produces different taxonomic distributions depending on whether coverage or precision is maximized. Including information on the quality of the reads reduces the number of unassigned reads but increases the number of ambiguous reads, stressing the relevance of our method. Finally, two measures of performance are described and results with a set of artificially generated datasets are discussed. Conclusions The assignment strategy of sequencing reads introduced in this paper is a versatile and a quick method to study bacterial communities. The bacterial composition of the analyzed samples can vary significantly depending on how ambiguous reads are assigned depending on the value of the q parameter. Validation of our results in an artificial dataset confirm that a combination of values of q produces the most accurate results.

Jansson Jesper

2011-01-01

192

Protein secondary structure assignment revisited: a detailed analysis of different assignment methods  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background A number of methods are now available to perform automatic assignment of periodic secondary structures from atomic coordinates, based on different characteristics of the secondary structures. In general these methods exhibit a broad consensus as to the location of most helix and strand core segments in protein structures. However the termini of the segments are often ill-defined and it is difficult to decide unambiguously which residues at the edge of the segments have to be included. In addition, there is a "twilight zone" where secondary structure segments depart significantly from the idealized models of Pauling and Corey. For these segments, one has to decide whether the observed structural variations are merely distorsions or whether they constitute a break in the secondary structure. Methods To address these problems, we have developed a method for secondary structure assignment, called KAKSI. Assignments made by KAKSI are compared with assignments given by DSSP, STRIDE, XTLSSTR, PSEA and SECSTR, as well as secondary structures found in PDB files, on 4 datasets (X-ray structures with different resolution range, NMR structures. Results A detailed comparison of KAKSI assignments with those of STRIDE and PSEA reveals that KAKSI assigns slightly longer helices and strands than STRIDE in case of one-to-one correspondence between the segments. However, KAKSI tends also to favor the assignment of several short helices when STRIDE and PSEA assign longer, kinked, helices. Helices assigned by KAKSI have geometrical characteristics close to those described in the PDB. They are more linear than helices assigned by other methods. The same tendency to split long segments is observed for strands, although less systematically. We present a number of cases of secondary structure assignments that illustrate this behavior. Conclusion Our method provides valuable assignments which favor the regularity of secondary structure segments.

de Brevern Alexandre G

2005-09-01

193

Scalable Task Assignment for Heterogeneous Multi-Robot Teams  

Directory of Open Access Journals (Sweden)

Full Text Available This work deals with the development of a dynamic task assignment strategy for heterogeneous multi?robot teams in typical real world scenarios. The strategy must be efficiently scalable to support problems of increasing complexity with minimum designer intervention. To this end, we have selected a very simple auction?based strategy, which has been implemented and analysed in a multi?robot cleaning problem that requires strong coordination and dynamic complex subtask organization. We will show that the selection of a simple auction strategy provides a linear computational cost increase with the number of robots that make up the team and allows the solving of highly complex assignment problems in dynamic conditions by means of a hierarchical sub?auction policy. To coordinate and control the team, a layered behaviour?based architecture has been applied that allows the reusing of the auction?based strategy to achieve different coordination levels.

Paula Garci?a

2013-02-01

194

Computational Assignment of Chemical Shifts for Protein Residues  

CERN Document Server

Fast and accurate protein structure prediction is one of the major challenges in structural biology, biotechnology and molecular biomedicine. These fields require 3D protein structures for rational design of proteins with improved or novel properties. X-ray crystallography is the most common approach even with its low success rate, but lately NMR based approaches have gained popularity. The general approach involves a set of distance restraints used to guide a structure prediction, but simple NMR triple-resonance experiments often provide enough structural information to predict the structure of small proteins. Previous protein folding simulations that have utilised experimental data have weighted the experimental data and physical force field terms more or less arbitrarily, and the method is thus not generally applicable to new proteins. Furthermore a complete and near error-free assignment of chemical shifts obtained by the NMR experiments is needed, due to the static, or deterministic, assignment. In this ...

Bratholm, Lars A

2013-01-01

195

Method for assigning sites to projected generic nuclear power plants  

Energy Technology Data Exchange (ETDEWEB)

Pacific Northwest Laboratory developed a method for forecasting potential locations and startup sequences of nuclear power plants that will be required in the future but have not yet been specifically identified by electric utilities. Use of the method results in numerical ratings for potential nuclear power plant sites located in each of the 10 federal energy regions. The rating for each potential site is obtained from numerical factors assigned to each of 5 primary siting characteristics: (1) cooling water availability, (2) site land area, (3) power transmission land area, (4) proximity to metropolitan areas, and (5) utility plans for the site. The sequence of plant startups in each federal energy region is obtained by use of the numerical ratings and the forecasts of generic nuclear power plant startups obtained from the EIA Middle Case electricity forecast. Sites are assigned to generic plants in chronological order according to startup date.

Holter, G.M.; Purcell, W.L.; Shutz, M.E.; Young, J.R.

1986-07-01

196

2012 SARA Students Technical Report  

International Nuclear Information System (INIS)

The Service Academy Research Associates (SARA) program provides an opportunity for Midshipmen and Cadets from US Service Academies to participate in research at Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and Sandia National Laboratory for several weeks during the summer as part of their summer training assignments. During the summer of 2012, three Midshipmen were assigned to work with the XCP Division at LANL for approximately 5-6 weeks. As one of the nation's top national security science laboratories, LANL stretches across 36 square miles, has over 2,100 facilities, and employs over 9,000 individuals including a significant number of students and postdocs. LANL's mission is to 'apply science and technology to: ensure the safety, security, and reliability of the US nuclear deterrent, reduce global threats, and solve other emerging national security challenges.' While LANL officially operates under the US Department of Energy (DoE), fulfilling this mission requires mutual cooperation with the US Department of Defense (DoD) as well. LANL's high concentration of knowledge and experience provides interns a chance to perform research in many disciplines, and its connection with the DoD in both operation and personnel gives SARA students insight to career possibilities both during and after military service. SARA students have plenty of opportunity to enjoy hiking, camping, the Los Alamos YMCA, and many other outdoor activities in New Mexico while staying at the Buffalo Thunder Resort, located 20 miles east of the lab. XCP Division is the Computational Physics division of LANL's Weapons Department. Working with XCP Division requires individuals to be Q cleared by the DoE. This means it is significantly more convenient for SARA students to be assigned to XCP Division than their civilian counterparts as the DoD CNWDI clearance held by SARA students is easily transferred to the lab prior to the students arriving at the start of the summer. SARA students working with XCP Division were given a comprehensive introduction into nuclear engineering and physics, nuclear weapons, and radiation transport and detection via texts and lectures at various classification levels. Students also attended tours of several prominent facilities at LANL including TA-41 Ice House, TA-55 PF-4 plutonium facility, the Nicholas C. Metropolis Center for Modeling and Simulation, also known as the Secure Computing Center (SCC), and the Dual-Axis Radiological Hydro Test (DARHT) facility; in addition, SARA students accompanied by LANL staff traveled to Minot AFB in North Dakota for tours of the 5th Bomb Wing and 91st Missile Wing facilities. Students participated in a week long class on the Monte Carlo N Particle (MCNP) code to supplement their understanding of radiation transport simulations. SARA students were then tasked with using this knowledge to model radiation detectors and use MCNP to compare their models to experimental data and previously accepted models.

2012-01-01

197

Fuzzy Assignment Procedure based on Categories' Boundaries  

Directory of Open Access Journals (Sweden)

Full Text Available We presented a procedure for multicriteria assignment problems. Assignment to a category is based on the comparison between an action and categories?s boundaries. Boundary is represented by the least typical action that can be included in the category, and is considered as the category?s inclusion threshold. Comparison is executed considering performance on evaluation criteria and calculation of a fuzzy inclusion relation, generalizing preference relations model with concordance and non-discordance concepts as used in ELECTRE methods. An illustrating example is also presented to demonstrate method?s application to assignment problems. The proposed procedure can be applied to a variety of domains, such as production and operations, as well as financial and human resources.

George Rigopoulos

2008-01-01

198

Protein secondary structure: category assignment and predictability  

DEFF Research Database (Denmark)

In the last decade, the prediction of protein secondary structure has been optimized using essentially one and the same assignment scheme known as DSSP. We present here a different scheme, which is more predictable. This scheme predicts directly the hydrogen bonds, which stabilize the secondary structures. Single sequence prediction of the new three category assignment gives an overall prediction improvement of 3.1% and 5.1%, compared to the DSSP assignment and schemes where the helix category consists of a-helix and 3(10)-helix, respectively. These results were achieved using a standard feed-forward neural network with one hidden layer on a data set identical to the one used in earlier work.

Andersen, Claus A.; Bohr, Henrik

2001-01-01

199

Special Education Student Teaching Practices  

Science.gov (United States)

This article presents findings of our nationwide study of undergraduate special education student teaching practices. The authors were especially interested in grading systems, assignments, supervision practices, and unique challenges. Results indicated variability in grading systems, use of traditional assignments such as lesson plans, use of…

Conderman, Greg; Morin, Joe; Stephens, J. Todd

2005-01-01

200

A Post-Hoc Procedure That Can Be Better than Random Assignment to Treatment.  

Science.gov (United States)

An analytical procedure that uses fall kindergarten assessment data to retroactively create equivalent comparison groups for longitudinal research and evaluation studies was designed and tested, and then analytically and empirically compared with random assignment to treatment. Students entering kindergarten in Hawaii are administered the Peabody…

Lai, Morris K.; Saka, Thomas

 
 
 
 
201

Assigning Integration: A Framework for Intellectual, Personal, and Professional Development in Seminary Courses  

Science.gov (United States)

This article explores assignments as a core teaching practice essential to integrating the cognitive, personal, and professional identities of seminary students. These core practices emerge in seminary curricula where there is a strong focus on the teaching of canonical texts and a goal of achieving textual mastery. We propose that carefully…

Kanarek, Jane; Lehman, Marjorie

2013-01-01

202

Application of Calibrated Peer Review (CPR) Writing Assignments to Enhance Experiments with an Environmental Chemistry Focus  

Science.gov (United States)

The browser-based software program, Calibrated Peer Review (CPR) developed by the Molecular Science Project enables instructors to create structured writing assignments in which students learn by writing and reading for content. Though the CPR project covers only one experiment in general chemistry, it might provide lab instructors with a method…

Margerum, Lawrence D.; Gulsrud, Maren; Manlapez, Ronald; Rebong, Rachelle; Love, Austin

2007-01-01

203

Using student generated blogs to create a global perspective on climate change  

Science.gov (United States)

Students in an introductory Global Climate Change college course develop a global perspective on climate change causes, impacts, and mitigation through the use of student generated content in the form of blogging. The students are from diverse backgrounds and mostly non-science majors. They each create a blog for an assigned country. They are immersed in active learning through daily activities that teach them to use numerical data to create and analyze graphs for their blogs. Students are familiarized with other science skills as well, such as how to critically evaluate their sources. This method of using student generated content and active learning encourages students to immerse themselves in the viewpoint of people living in other countries. This creates a tangible understanding of the global stakes of climate change and fosters an emotional involvement in what otherwise might have been an abstract or intimidating topic. The front page of the course blog opens with a world map and a feed from each student's blog. Upon clicking on a country on the world map, the reader is taken to the blog page created by the student in charge of that country. The United States is reserved as a sample page created by the instructor. Throughout the semester, students follow a series of assignments that build their knowledge of the geography, climate, and culture of their assigned country, and these appear as tabs, or informational pages, on their blog. Students are taught to use Excel and they each create temperature and precipitation graphs that compare the climate of a city in their assigned country to that of their home city. Students then write their first blog post on their country's contribution to climate change and how that compares to other countries in the world by importing carbon dioxide emissions data into Excel and creating their own graphs to be used as images in their blog post. The second blog post covers potential climate change impacts on their assigned country such as sea level rise or heat waves. Students then discuss what their country is doing to mitigate climate change, including its role in the Kyoto Protocol and any policies for alternative energy or carbon sequestration. Lastly, students write their final blog post on how their country plans to adapt to climate change. After each blog post, students are required to comment on their classmates' posts. This encourages them to recognize the interdependence of the countries they study, a connection often overlooked in simple paper writing exercises, but made visible through the use of the blogs.

Schuenemann, K. C.

2012-12-01

204

The Effect of Output Requirement on the Acquisition of Grammatical Collocations by Iranian EFL Learners  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The present study investigated: (a) the effect of output requirement on the acquisition of grammatical collocations; and (b) the relative efficacy of output tasks in comparison with that of input enhancement with regard to the acquisition of grammatical collocations. Ninety homogenous adult Iranian intermediate EFL learners were randomly assigned to two experimental (EG1/EG2) and a control group (CG). A pre-test was given to the three groups to measure the students’ knowledge of colloca...

Ehsan Rezvani

2011-01-01

205

75 FR 55354 - Delegation of Authority and Assignment of Responsibilities  

Science.gov (United States)

...Secretary Delegation of Authority and Assignment of Responsibilities Secretary's Order...Subject: Delegation of Authority and Assignment of Responsibilities to the Employee...FLSA. 4. Delegation of Authority and Assignment of Responsibilities. A. Except...

2010-09-10

206

Dynamic Weapon-Target Assignment Problem.  

Science.gov (United States)

We present a progress report on our recent results on the dynamic version of the Weapon to Target Assignment (WTA) problem. In this paper we will present result for the Asset-Based problem. In the static Asset-Based WTA problem, the offense launches missi...

M. Athans P. Hosein

1989-01-01

207

Penentuan Titik Awal Penyelesaian Quadratic Assignment Problem  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Quadratic Assignment Problem (QAP) merupakan problema kombinatorial, dalam menentukan penempatan fasilitas di lokasi tertentu sedemikian sehingga meminimumkan fungsi objektif yang dinyatakan denganjarak antara lokasi dan flow antara fasilitas. Pertama sekali dilakukan pendekatan heuristic sederhana untuk mendapatkan titik awal penugasan. Metode Heuristik Tabu Search digunakan untuk mendapatkan titik awal penugasan yang lain yang akan digunakan untuk titik awal pendekatan Nonlinier Programing....

2008-01-01

208

ASSIGNMENT OF DEBTS AS PROVIDED BY THE NEW CIVIL CODE  

Directory of Open Access Journals (Sweden)

Full Text Available Assignment of debts is a procedure based on which a debt is transferred from an original creditor to a new creditor. This procedure consists in a bipartite agreement (free of charge or for consideration concluded between the original creditor (acting as assignor and the new creditor (acting as assignee; the debtor is not part of the agreement. Nevertheless, according to the provisions of the New Civil Code1, there are certain situations when the consent of the debtor is required (e.g. the debt is essentially related to the assignor’s person.As mentioned above, the main function of the debts assignment consists in transferring the debt. However, the doctrine and jurisprudence have revealed other functions of this legal procedure, e.g. payment of a debt that the original creditor (assignor owes to the new creditor (assignee, guarantee the achievement of a receivable. Although extensively treated by Romanian scholars, the provisions of the New Civil Code bring certain amendments as regards the procedures to be observed in case of an assignment of debts. The purpose of this paper is to highlight the amendments brought by the New Civil Code and to explain their impact on the procedure under discussion.

CATALIN BOGDAN NAZAT

2011-04-01

209

Heuristic Spectrum Assignment Algorithm in Distributed Cognitive Networks  

Directory of Open Access Journals (Sweden)

Full Text Available Cognitive radio is an exciting emerging technology that has the potential of dealing with the urgent requirement and scarcity of the radio spectrum. Although having multiple radio interfaces and available spectrum bands can generally increase the effective throughput, a problem arises as to what the best strategy to dynamically assign available bands to secondary users for maximizing throughput by minimizing the interference, and what the best scheme to allocate the spectrum holes to unlicensed users to maximize the fairness. This paper presents a distributed and heuristic spectrum assignment algorithm for multi-radio wireless cognitive networks in a cognitive network environment. The proposed algorithm (Fairness Bargaining with Maximum throughput, FBMT considers the problems including system throughput and the fairness. Extensive simulation studies in 802.11 based multi-radio cognitive networks have been performed. The results indicate that the proposed algorithm can facilitate a large increase in network throughput and acquire a good fairness performance in comparison with a common spectrum assignment mechanism that is used as a benchmark in the literature.

Cong Liu

2010-06-01

210

A Distributed TDMA Slot Assignment Algorithm for Wireless Sensor Networks  

CERN Multimedia

Wireless sensor networks benefit from communication protocols that reduce power requirements by avoiding frame collision. Time Division Media Access methods schedule transmission in slots to avoid collision, however these methods often lack scalability when implemented in \\emph{ad hoc} networks subject to node failures and dynamic topology. This paper reports a distributed algorithm for TDMA slot assignment that is self-stabilizing to transient faults and dynamic topology change. The expected local convergence time is O(1) for any size network satisfying a constant bound on the size of a node neighborhood.

Herman, T

2004-01-01

211

Fixed Channel Assignment and Neural Network Algorithm for Channel Assignment Problem in Cellular Radio Networks  

Directory of Open Access Journals (Sweden)

Full Text Available The channel-assignment problem is important in mobile telephone communication. Since the usable range of the frequency spectrum is limited, the optimal channel-assignment problem has become increasingly important. The goal of this problem is to find a channel assignment to requested calls with the minimum number of channels subject to interference constraints between channels. This algorithm consists of: 1 the fixed channel assignment stage; 2 the neural network stage. In the first stage, the calls in a cell determining the lower bound on the total number of channels are assigned channels at regular intervals, then the calls in adjacent six cells are assigned channels by a cluster heuristic method sequentially. In the second stage, the calls in the remaining cells are assigned channels by a binary neural network. The performance is verified through solving well-known benchmark problems. Especially for Sivarajan’s benchmark problems, my algorithm first achieves the lower bound solutions in all of the 12 instances.

Omid Moradi

2010-10-01

212

Gender Assignment in Danish, Swedish and Norwegian: A Comparison of the Status of Assignment Criteria  

Directory of Open Access Journals (Sweden)

Full Text Available The paper deals with gender assignment of English loanwords in Danish, Swedish and Norwegian. The following assignment criteria have been analysed: semantic (animate, mass, phonological (number of syllables, homonymy, and morphological (inflection, suffixation, deverbal monosyllables, compounds. Common gender in Danish and Swedish and masculine in Norwegian are overrepresented in comparison with the native lexicon. This is confirmed by discriminant function analysis, which shows that neuter nouns in the three languages and feminine nouns in Norwegian show fewer characteristic features. This analysis has also been used to measure the degree of regularity based on the postulated criteria: the percentage of correctly classified cases (from 67% in Swedish to 68% in Norwegian and 72% in Danish suggests only a partial regularity in gender assignment. The stronger pull of common or masculine gender is reflected in the contribution of selected assignment rules, particularly in the assignment of animates, where common or masculine nouns constitute 96% of assigned nouns. As regards phonological rules, monosyllables show a slightly better correlation with neuter gender, particularly in Danish. Homonymy is significant for nouns of both genders in Danish, while in Swedish and Norwegian nouns with a native neuter or feminine homonym are more likely to be assigned common or masculine gender. Likewise, most inflectional and derivational assignment rules contribute to the assignment of common or masculine genders, with the exception of zero plurals, Swedish n-plurals, suffixes such as -ment, -ery, deverbal monosyllables in Danish and Norwegian, and compounds whose base appears in the corpus with n. gender. Discriminant function analysis shows that plural inflection has the greatest discriminant power among the postulated criteria. Finally, it is suggested that these tendencies may indicate an ongoing expansion of common and masculine genders in the three Scandinavian languages.

Marcin Kilarski

2003-01-01

213

The 2^-+ assignment for the X(3872)  

CERN Multimedia

Very recently the BaBar collaboration has put forward a claim that the X(3872) is not a 1^++ resonance, as most of the phenomenological work on the subject was relying on, but rather a 2^-+ one. We examine the consequences of this quantum number assignment for the solution of the X(3872) puzzle. The molecular interpretation appears less likely, and the conventional charmonium interpretation should be reconsidered. There are several well-known difficulties with this interpretation, to which we add a new one: the production cross section at CDF is predicted to be much smaller than that observed. We also confirm, using a relativistic string model, the conclusion from potential models that the mass of the state is not consistent with expectations. In the tetraquark interpretation the 2^-+ assignment implies a rich spectrum of partner states, although the X(3872) may be among the few which are narrow enough to be observable.

Burns, T J; Polosa, A D; Sabelli, C

2010-01-01

214

Weapon Target Assignment with Combinatorial Optimization Techniques  

Directory of Open Access Journals (Sweden)

Full Text Available Weapon Target Assignment (WTA is the assignment of friendly weapons to the hostile targets in order to protect friendly assets or destroy the hostile targets and considered as a NP-complete problem. Thus, it is very hard to solve it for real time or near-real time operational needs. In this study, genetic algorithm (GA, tabu search (TS, simulated annealing (SA and Variable Neighborhood Search (VNS combinatorial optimization techniques are applied to the WTA problem and their results are compared with each other and also with the optimized GAMS solutions. Algorithms are tested on the large scale problem instances. It is found that all the algorithms effectively converge to the near global optimum point(s (a good quality and the efficiency of the solutions (speed of solution might be improved according to the operational needs. VNS and SA solution qualities are better than both GA and TS.

Asim Tokgöz

2013-07-01

215

Interprocedural static single assignment form in Bauhaus  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In this paper we describe interprocedural static single assignment form (ISSA) with optimizations as implemented in the Bauhaus project. We explain our framework which uses an abstract program representation enabling us to use different pointer analyses ranging from fast but imprecise to slow but precise ones. Our implementation includes the computation of (may and must) side effects and optimizations like pruning definitions with simple linear-time algorithms. This paper also provides compre...

Staiger, Stefan; Vogel, Gunther; Keul, Steffen; Wiebe, Eduard

2007-01-01

216

Traffic models for dynamic system optimal assignment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Most analyses on dynamic system optimal (DSO) assignment are done by using a control theory with an outflow traffic model. On the one hand, this control theoretical formulation provides some attractive mathematical properties for analysis. On the other hand, however, this kind of formulation often ignores the importance of ensuring proper flow propagation. Moreover, the outflow models have also been extensively criticized for their implausible traffic behaviour. This paper aims to...

Chow, A.

2005-01-01

217

The 2^-+ assignment for the X(3872)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Very recently the BaBar collaboration has put forward a claim that the X(3872) is not a 1^++ resonance, as most of the phenomenological work on the subject was relying on, but rather a 2^-+ one. We examine the consequences of this quantum number assignment for the solution of the X(3872) puzzle. The molecular interpretation appears less likely, and the conventional charmonium interpretation should be reconsidered. There are several well-known difficulties with this interpret...

Burns, T. J.; Piccinini, F.; Polosa, A. D.; Sabelli, C.

2010-01-01

218

What else do students need?  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This article considers university staff’s place in students’ worlds from a psychodynamic perspective. It looks at ‘studenthood’ as a psychological stage, in which relationship to university and university staff is seen as being recruited into a personal developmental context. It sketches some psychodynamic background for understanding the role students unconsciously assign to staff, in terms of concepts such as...

Baker, Amanda

2006-01-01

219

Reducing Procrastination through Required Course Involvement.  

Science.gov (United States)

Students in two introductory psychology classes using a personalized system of instruction were assigned to either daily quizzing or self-initiated quizzing treatment conditions. Results showed students in the daily quizzing section completed course work more rapidly and earned higher grades by reducing procrastination. (Author/JDH)

Wesp, Richard

1986-01-01

220

Configuration assignment to the 156Pm isomers  

International Nuclear Information System (INIS)

Level structures of transitional nuclei (A?150-160), particularly of neutron-rich species, are of a great interest, but are rather poorly defined. In this context, the latest Nuclear Data Sheets (NDS) evaluator for A=156 mass chain remarked that assigning of a configuration to Z = 61 isotope 156Pm ground state (gs) by Hellstrom et al., and relating it to the 26.7-s activity present problems. In the present report, this situation is critically examined, taken together with more recent related experimental results and Rotor Particle Model calculations

2010-12-01

 
 
 
 
221

Interval Assignment for Volumes with Holes  

Energy Technology Data Exchange (ETDEWEB)

This paper presents a new technique for automatically detecting interval constraints for swept volumes with holes. The technique finds true volume constraints that are not necessarily imposed by the surfaces of the volume. A graphing algorithm finds independent, parallel paths of edges from source surfaces to target surfaces. The number of intervals on two paths between a given source and target surface must be equal; in general, the collection of paths determine a set of linear constraints. Linear programming techniques solve the interval assignment problem for the surface and volume constraints simultaneously.

BENZLEY, STEVEN; MITCHELL, SCOTT A.; SHEPHERD, JASON F.

1999-09-07

222

EEO's next frontier: assignments, training, and promotion.  

Science.gov (United States)

Too often, says Prof. Ginzberg, newly hired employees from minority groups are overlooked when it comes to training and assignment to better jobs. The only safe and sane policy for employers to follow is to consider everyone who is hired in any opening position to be in a pool of potential promotables. With the num0er of qualified persons from previously underrepresented groups growing rapidly, the pressure is on management to reflect this fact in promoting individuals from these groups to higher ranks. PMID:10308044

Ginzberg, E

1978-01-01

223

An Aggregation Approach for Group Multicriteria Assignment  

Directory of Open Access Journals (Sweden)

Full Text Available We presented an aggregation approach for group multicriteria assignment decisions, where group members express their preferences on problem parameters in numeric format. Individual preferences are aggregated by WOWA operator following the majority concept and a group parameter set is derived that is used as input for the classification algorithm. In addition, we present a numeric example of the approach, demonstrating its applicability. The methodology has been applied to classification problems in business environment, with sufficient results depicting its validity for such problems.

George Rigopoulos

2008-01-01

224

Solving the State Assignment Problem Using Stochastic Search Aided with Simulated Annealing  

Directory of Open Access Journals (Sweden)

Full Text Available Problem statement: Solving the state assignment problem means finding the optimum assignment for each state within a sequential digital circuit. These optimum assignments will result in decreasing the hardware realization cost and increasing the reliability of the digital circuit. Unfortunately, the state assignment problem belongs to the class of nondeterministic polynomial time problems (NP complete which requires heavy computations. Different attempts have been made towards solving the problem with reasonable recourses. Approach: This study presented a methodology for solving the state assignment problem, the methodology conducted a neighborhood search while using a heuristic to determine the fitness of solution. To avoid being trapped at a local optimum solution, a metaheuristic (simulated annealing was utilized for deciding whether a new solution should be accepted. A case study was included to demonstrate the proposed procedure efficiency. Results: The proposed approach finds the optimum assignment for the case study. Conclusion: In this study, we explored the usage of a stochastic search technique inspired by simulated annealing to solve the problem of the state assignment problem. This proved the efficiency of the methodology.

Walid M. Aly

2009-01-01

225

Development of a Microbiology Course for Diverse Majors: Longitudinal Survey of the Use of Various Active, Problem-Based Learning Assignments.  

Science.gov (United States)

Reports on the development of a series of assignments for use in a basic microbiology course involving sophomore-, junior-, and senior-level students from five different biology majors. Assignments include writing, a class debate, and case history studies. (Author/MM)

Cundell, Diana R.

2002-01-01

226

Effects of Web-Based Multimedia Homework with Immediate Rich Feedback on Student Learning in General Chemistry  

Science.gov (United States)

Continuing developments in computer technology, and specifically technology of the World Wide Web, have the potential to improve instruction in many different subjects, including chemistry. We have developed a series of Web-based homework and tutorial programs implemented through WebCT that are designed to help students gain a better understanding of chemistry. This project has two major instructional goals: to encourage students to take responsibility for their own learning and to provide a resource to help students focus their study efforts. The system is designed to structure students' studying and make the student responsible for doing the work necessary for success. This approach allowed the instructor to give graded homework assignments with feedback without having to invest the considerable time typically required in grading homework assignments. We analyzed student performance in the course as well as results from student interviews concerning their reactions to the online material. The study showed no significant quantitative difference in student performance, but positive outcomes in terms of reported student attitudes were observed.

Cole, Renée S.; Todd, John B.

2003-11-01

227

Inspection of Forrestal parking permit allocation and assignments  

Energy Technology Data Exchange (ETDEWEB)

The purpose of this inspection was to review the process cr allocating and assigning parking permits at the Forrestal building. Specifically, we sought to determine the roles and responsibilities of Department of Energy (DOE) officials involved in the administration of the Forrestal parking permit process during the period June 1, 1991 to February 1, 1992. We also sought to determine if the allocation and assignment of Forrestal building parking spaces was implemented in accordance with Federal and DOE requirements. For our review, we interviewed the Headquarters officials involved in the administration of the parking permit allocation and assignment process. We also reviewed parking permit files and associated documentation for the period June 1, 1991 through February 1, 1992. In addition, we conducted a limited sampling of parking permits that were revoked during July and August 1991 to assess if they were processed in compliance with applicable regulations. We found no evidence that the actions by the Special Assistant to the Secretary (White House Liaison) and the other members of the parking committee regarding the issuance and revocation of parking permits were for any reason other than a desire to ensure that only individuals having a legitimate basis for a parking permit were issued a permit. However, we found that decisions by the parking committee regarding revocation of permits and appeals of revocation decisions were not always documented, nor were there written guidelines or procedures to govern the activities of the committee. In our view, the lack of written guidelines and procedures resulted in the use of invalidated personal knowledge by the parking committee in making decisions involving the revocation of parking permits and led to inconsistencies in the notification of individuals about the associated appeal process.

1992-12-16

228

Conformational stability and vibrational assignment of propanal  

Science.gov (United States)

Variable temperature (-52 to -100°C) studies of the infrared spectra (3500-400 cm -1) of propanal, CH 3CH 2CHO, dissolved in liquid xenon have been recorded and bands due to both the cis and gauche conformers have been identified. From these data, the enthalpy difference has been determined to be 370±21 cm -1 (4.43±0.25 kJ mol -1) with the cis conformer (methyl group eclipsing the oxygen atom) the more stable form. Utilizing the new infrared data from the xenon solution, along with some additional Raman data, and ab initio predictions from MP2/6-31G* calculations, several reassignments of the fundamentals have been made for the cis conformer. Additionally, several bands which have been identified as arising from the gauche conformer have also been assigned. Infrared (3500-80 cm -1) and Raman (3500-30 cm -1) spectra of gaseous, liquid and/or solid CD 3CD 2CHO are also reported and the fundamentals assigned for the cis conformer. The spectroscopic and theoretical results are compared to the corresponding quantities for some similar molecules.

Guirgis, Gamil A.; Drew, B. R.; Gounev, T. K.; Durig, J. R.

1998-01-01

229

LOGIC BASED RULES FOR PROJECT ASSIGN PREDICTION  

Directory of Open Access Journals (Sweden)

Full Text Available Project assigning is a major decision for any software organization like IT companies to their developer employees. The uncertain domain of assessment has been in need of a reliable and consistent system to help simplify the decision making process. Logic rules provides a completely different, unorthodox way to approach a control problem. This method focuses on what the system should do rather than trying to understand how it works. One can concentrate on solving the problem rather than trying to model the system mathematically,if that is even possible. This almost invariably leads to quicker, cheaper solutions. This research work will help in analysis assign project to a developer according to different factors like reliability,his hardware interaction, programming level,configuration etc the decision factor helps in making decision above how to select accurate developer for the project. Using the algorithm has been defined, new rules defined,according to different rules added and take average decision based on data collected by different categories of the employees.

Ashu Singla

2011-06-01

230

Dynamic assignment: there is an equilibrium !  

CERN Document Server

Given a network with a continuum of users at some origins, suppose that the users wish to reach specific destinations, but that they are not indifferent to the time needed to reach their destination. They may have several possibilities (of routes or deparure time), but their choices modify the travel times on the network. Hence, each user faces the following problem: given a pattern of travel times for the different possible routes that reach the destination, find a shortest path. The situation in a context of perfect information is a so-called Nash equilibrium, and the question whether there is such an equilibrium and of finding it if it exists is the so-called equilibrium assignment problem. It arises for various kind of networks, such as computers, communication or transportation network. When each user occupies permanently the whole route from the origin to its destination, we call it the static assignment problem, which has been extensively studied with pioneers works by Wardrop or Beckmann. A less studi...

Meunier, Frédéric

2008-01-01

231

Efficient eigenvalue assignment by state and output feedback with applications for large space structures  

Science.gov (United States)

The erection and deployment of large flexible structures having thousands of degrees of freedom requires controllers based on new techniques of eigenvalue assignment that are computationally stable and more efficient. Scientists at NASA Langley Research Center have developed a novel and efficient algorithm for the eigenvalue assignment of large, time-invariant systems using full-state and output feedback. The objectives of this research were to improve upon the output feedback version of this algorithm, to produce a toolbox of MATLAB functions based on the efficient eigenvalue assignment algorithm, and to experimentally verify the algorithm and software by implementing controllers designed using the MATLAB toolbox on the phase 2 configuration of NASA Langley's controls-structures interaction evolutionary model, a laboratory model used to study space structures. Results from laboratory tests and computer simulations show that effective controllers can be designed using software based on the efficient eigenvalue assignment algorithm.

Vannell, Eric C.; Kenny, Sean P.; Maghami, Peiman G.

1995-01-01

232

Homework Practices That Support Students with Disabilities.  

Science.gov (United States)

This issue discusses homework issues related to students with disabilities and how to ensure that students with disabilities benefit from homework. It addresses communication problems teachers face in assigning homework to students with disabilities and recommendations for overcoming these communication barriers. Strategies are provided for…

Research Connections in Special Education, 2001

2001-01-01

233

Assessing Internal Group Processes in Collaborative Assignments  

Science.gov (United States)

As teachers consider ethics, they find that it may often look like a student issue. It may be discussions of plagiarism, social justice, honesty, bullying, privacy, child labor, free speech, inequity. However, even as teachers struggle with ways to model ethics or "teach" ethics, they find that their teaching practices may warrant reflection. One…

Nelson, Trudi J.

2011-01-01

234

Principales elementos de contenido y forma para elaborar un proyecto de revista científica electrónica estudiantil / Main form and content elements required to develop a student electronic scientific journal project  

Scientific Electronic Library Online (English)

Full Text Available SciELO Cuba | Language: Spanish Abstract in spanish Introducción: muchas investigaciones estudiantiles nunca llegan a publicarse por la escasez de medios y de espacios académicos que guíen a los estudiantes en la preparación y producción correcta de sus manuscritos. Objetivos: caracterizar las revista científicas estudiantiles electrónicas de Ciencia [...] s Médicas y conformar una matriz con los principales elementos de contenido y forma que sirva como referente para elaborar un proyecto de revista. Métodos: se realizó un estudio descriptivo que abarcó a las revistas científicas estudiantiles electrónicas de Ciencias Médicas creadas hasta el ańo 2009, producidas por instituciones educativas. Se analizaron variables generales y de contenido y forma tales como: cobertura regional, idioma, periodicidad, formato de presentación, usuarios/lectores, secciones, recursos multimedia, modelos de licencia y servicios de valor ańadido. Resultados: del total de 50 revistas revisadas, 68 % pertenecían a Latinoamérica y el Caribe. A partir de los ańos 90, se encontró una tendencia ascendente (p = 0,018) en la producción de revistas estudiantiles. Por su contenido y forma se destacaron entre las publicaciones analizadas: Asian Student Medical Journal, regional;Global Pulse: American Medical Student Association´s International HealthJournal, de Estados Unidos, y "16 de Abril", de Cuba. Conclusiones: existe una tendencia ascendente hacia el crecimiento en la producción de revistas científicas electrónicas estudiantiles de Ciencias Médicas, particularmente en el área de Latinoamérica y el Caribe. En las publicaciones analizadas, la distribución de los contenidos y la forma es variada y singular en algunas, aunque pocas hacen un uso adecuado de los recursos multimedia y los servicios de valor ańadido. Los elementos identificados permiten conformar una matriz que sirve como referente para determinar los principales elementos de contenido y forma que debe contemplar una revista científica electrónica estudiantil, con apego a las normas internacionales para este tipo de publicaciones. Abstract in english Introduction: many student research studies never come to be published due to shortage of means or academic spaces where students can prepare and appropriately produce their manuscripts. Objective: characterize student electronic scientific journals of medical sciences and create a matrix containing [...] the main form and content elements required to develop a journal project. Method: a descriptive study was conducted of the student electronic scientific journals of medical sciences produced by educational institutions until the year 2009. The following general and content and form variables were analyzed: regional coverage, language, periodicity, layout, users/readers, sections, multimedia resources, license models and added value services. Results: of the 50 journals reviewed, 68 % were from Latin America and the Caribbean. A trend toward an increase in the number of student journals produced was observed from the 1990s onwards (p = 0,018). The following journals stood out for their content and form: Asian Student Medical Journal, regional; Global Pulse: American Medical Student Association's International Health Journal, from the United States, and "16 de Abril", from Cuba. Conclusions: a trend toward an increase in the number of student electronic scientific journals of medical sciences was observed, particularly in Latin America and the Caribbean. The distribution of contents and formal traits is varied in the journals analyzed, and it is unique in some of them. However, few journals make appropriate use of multimedia resources and added value services. The elements identified made it possible to create a reference matrix to determine the main form and content elements required by student electronic scientific journals, according to international standards for this type of publication.

Mayreth, González-Peńa; María, Espino Hernández.

235

Bayesian Selection of Nucleotide Substitution Models and Their Site Assignments  

Science.gov (United States)

Probabilistic inference of a phylogenetic tree from molecular sequence data is predicated on a substitution model describing the relative rates of change between character states along the tree for each site in the multiple sequence alignment. Commonly, one assumes that the substitution model is homogeneous across sites within large partitions of the alignment, assigns these partitions a priori, and then fixes their underlying substitution model to the best-fitting model from a hierarchy of named models. Here, we introduce an automatic model selection and model averaging approach within a Bayesian framework that simultaneously estimates the number of partitions, the assignment of sites to partitions, the substitution model for each partition, and the uncertainty in these selections. This new approach is implemented as an add-on to the BEAST 2 software platform. We find that this approach dramatically improves the fit of the nucleotide substitution model compared with existing approaches, and we show, using a number of example data sets, that as many as nine partitions are required to explain the heterogeneity in nucleotide substitution process across sites in a single gene analysis. In some instances, this improved modeling of the substitution process can have a measurable effect on downstream inference, including the estimated phylogeny, relative divergence times, and effective population size histories.

Wu, Chieh-Hsi; Suchard, Marc A.; Drummond, Alexei J.

2013-01-01

236

Bayesian selection of nucleotide substitution models and their site assignments.  

Science.gov (United States)

Probabilistic inference of a phylogenetic tree from molecular sequence data is predicated on a substitution model describing the relative rates of change between character states along the tree for each site in the multiple sequence alignment. Commonly, one assumes that the substitution model is homogeneous across sites within large partitions of the alignment, assigns these partitions a priori, and then fixes their underlying substitution model to the best-fitting model from a hierarchy of named models. Here, we introduce an automatic model selection and model averaging approach within a Bayesian framework that simultaneously estimates the number of partitions, the assignment of sites to partitions, the substitution model for each partition, and the uncertainty in these selections. This new approach is implemented as an add-on to the BEAST 2 software platform. We find that this approach dramatically improves the fit of the nucleotide substitution model compared with existing approaches, and we show, using a number of example data sets, that as many as nine partitions are required to explain the heterogeneity in nucleotide substitution process across sites in a single gene analysis. In some instances, this improved modeling of the substitution process can have a measurable effect on downstream inference, including the estimated phylogeny, relative divergence times, and effective population size histories. PMID:23233462

Wu, Chieh-Hsi; Suchard, Marc A; Drummond, Alexei J

2013-03-01

237

The Communication Field in the Last 70 Years: Orienting Students to Our Recent Past and Present  

Science.gov (United States)

This activity is designed as a brief, two-part assignment that students should complete outside of the class period before engaging in class discussion. Because this activity is an overview of the field, it works best if assigned early in the semester. The class periods immediately prior to the assignment should give students a basic orientation…

Heisler, Jennifer M.

2005-01-01

238

The Pedagogical Anatomy of Peer-Assessment: Dissecting a peerScholar Assignment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Peer-assessment is a process wherein students grade the work of their peers rather than relying on an expert. With the recent advent of online tools for peer-assessment [1] it is possible to utilize peer-assessment within any course context, even extremely large courses, with virtually no logistic or economic barriers. Given this potential for widespread use, the present paper highlights the pedagogical value of peer-assessment by breaking down a specific assignment and highlighting the manne...

2009-01-01

239

Structural Encoding of Static Single Assignment Form  

DEFF Research Database (Denmark)

Static Single Assignment (SSA) form is often used as an intermediate representation during code optimization in Java Virtual Machines. Recently, SSA has successfully been used for bytecode verification. However, constructing SSA at the code consumer is costly. SSAbased mobile code transport formats have been shown to eliminate this cost by shifting SSA creation to the code producer. These new formats, however, are not backward compatible with the established Java class-file format. We propose a novel approach to transport SSA information implicitly through structural code properties of standard Java bytecode. While the resulting bytecode sequence can still be directly executed by traditional Virtual Machines, our novel VM can infer SSA form and confirm its safety with virtually no overhead.

Probst, Christian

2005-01-01

240

Cluster Chain Based Relay Nodes Assignment  

Directory of Open Access Journals (Sweden)

Full Text Available Wireless sensor Networks are very famous these days due to their coverage and enormous benefits. Clustering the sensor nodes efficiently and dynamically with least energy consumption is the current issue in front of researchers, so that lifetime of sensor nodes will be increased. Cooperation among Relay Nodes and Edge Nodes (ENs along with restrained energy utilization depends upon some protocol such as LEACH for data transmission. In this paper, we propose a Cluster Chain Based Relay Nodes Assignment (CCBRNA scheme to manage the energy constraints in WSN, which Assigns Relay Nodes (Cluster-Heads on the basis of energy and distances parameters but priority is always given to the energy value. The primary model of CCBRNA based on LEACH and PEGASIS protocols is redeveloped to enlarge the lifetime span of network nodes. This scheme is sliced into two main steps. In the first step Cluster-Head is selected and then in second step data transmission starts using an internal chain of nodes according to the distances of nodes from Base Station. In data transmission step, data transportation between different clusters takes place and lastly data is sent to the end terminal moving via the nearest Cluster-Head. Simulation in MATLAB verifies the enhanced lifetime of the nodes. We have used the distance as the key parameter while data transmission takes place. The scheme is efficient as when there are large number of nodes, chaining will take very less time and as well as energy to transmit the data to Cluster-Head. We have further applied an external chaining among Cluster-Heads of different clusters. With the applied limitations and suggested resources such as additional processor, it works well in relaying process.

Gulnaz Ahmed

2014-01-01

 
 
 
 
241

Diagnosis code assignment: models and evaluation metrics  

Science.gov (United States)

Background and objective The volume of healthcare data is growing rapidly with the adoption of health information technology. We focus on automated ICD9 code assignment from discharge summary content and methods for evaluating such assignments. Methods We study ICD9 diagnosis codes and discharge summaries from the publicly available Multiparameter Intelligent Monitoring in Intensive Care II (MIMIC II) repository. We experiment with two coding approaches: one that treats each ICD9 code independently of each other (flat classifier), and one that leverages the hierarchical nature of ICD9 codes into its modeling (hierarchy-based classifier). We propose novel evaluation metrics, which reflect the distances among gold-standard and predicted codes and their locations in the ICD9 tree. Experimental setup, code for modeling, and evaluation scripts are made available to the research community. Results The hierarchy-based classifier outperforms the flat classifier with F-measures of 39.5% and 27.6%, respectively, when trained on 20?533 documents and tested on 2282 documents. While recall is improved at the expense of precision, our novel evaluation metrics show a more refined assessment: for instance, the hierarchy-based classifier identifies the correct sub-tree of gold-standard codes more often than the flat classifier. Error analysis reveals that gold-standard codes are not perfect, and as such the recall and precision are likely underestimated. Conclusions Hierarchy-based classification yields better ICD9 coding than flat classification for MIMIC patients. Automated ICD9 coding is an example of a task for which data and tools can be shared and for which the research community can work together to build on shared models and advance the state of the art.

Perotte, Adler; Pivovarov, Rimma; Natarajan, Karthik; Weiskopf, Nicole; Wood, Frank; Elhadad, Noemie

2014-01-01

242

On Axiomatizations of the Shapley Value for Assignment Games  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We consider the problem of axiomatizing the Shapley value on the class of assignment games. We first show that several axiomatizations of the Shapley value on the class of all TU-games do not characterize this solution on the class of assignment games by providing alternative solutions that satisfy these axioms. However, when considering an assignment game as a communication graph game where the game is simply the assignment game and the graph is a corresponding bipartite graph buyers are con...

Den Brink, Rene; Pinter, Miklos

2012-01-01

243

SCRAED - Simple and Complex Random Assignment in Experimental Designs  

Digital Repository Infrastructure Vision for European Research (DRIVER)

SCRAED is a package of 37 self-contained SPSS syntax files that performs simple and complex random assignment in experimental designs. For between-subjects designs, SCRAED includes simple random assignment (no restrictions, forced equal sizes, forced unequal sizes, and unequal probabilities), block random assignment (simple and generalized blocks), and stratified random assignment (no restrictions, forced equal sizes, forced unequal sizes, and unequal probabilities). For within-subject...

Alferes, Valentim R.

2009-01-01

244

The effects of interactive (TIPS) homework on family involvement and science achievement of middle grade students  

Science.gov (United States)

The purpose of the study was to investigate the effects of interactive and non-interactive science homework assignments on family involvement in homework, homework completion and accuracy, student science achievement, and student and parent attitudes about science. Most previous research on homework has examined what parental involvement results naturally, without prompts or instruction from teachers. In contrast, this study experimentally examined the effects of teacher prompts to parents for involvement in their children's homework. Two hundred and fifty-three students from 10 classes of sixth and eighth grade students participated in the study that lasted 18 weeks of the school year. Six classes of students completed the TIPS (Teachers Involve Parents In Schoolwork) interactive homework assignments, and four classes completed the non-interactive assignments that contained the same content and questions as the TIPS assignments. TIPS students received instructions to involve a parent or other family partner in certain sections of the homework assignment. ATIPS students received the same assignment with no instruction to involve another person. Results indicated that TIPS students more often involved parents in their science homework assignments than ATIPS students. However, TIPS science students reported no more parental involvement in homework than ATIPS students in subjects not assigning interactive homework. Therefore, the TIPS instructions elicited more parental involvement in homework than the ATIPS assignments. TIPS students did not differ from ATIPS students in the percent of homework returned or accuracy. Students who rated the homework more positively and involved families regularly returned more homework assignments than students who did not do so. TIPS students did earn significantly higher science report card grades than ATIPS students after controlling for background variables, teacher effects, and percent of homework returned. Exploratory analyses of matched student and parent data suggest the importance of both student and parent data in research of interactive homework. The results of the study indicate the benefits of well-designed interactive homework for levels of family involvement, science attitudes, and science achievement.

van Voorhis, Frances Landis

245

Engineering Your Own Superbug: A Useful Assignment to Evaluate Real Learning Comprehension in Microbiology Classes  

Directory of Open Access Journals (Sweden)

Full Text Available The learning comprehension of students in microbiology classes is not easy to evaluate, particularly when the student population is diverse in terms of backgrounds, majors, levels of training and preparedness, and the students’ expectations and enthusiasm for the class. It is difficult to design a one-size-fits-all exam that best suits a mixed student population; and most traditional assignments/case studies focusing on particular microbes or topics might not readily assess students’ overall understanding and learning comprehension. It is important to develop an assessment method that not only can engage students in active learning and deliberate practice but can also promote their imaginative and creative potential. The word “superbugs” often appears in the media and refers to some deadly or drug-resistant microbes. These superbugs possess special phenotypic and functional attributes that constitute their “superness.” It is predicted that more new surprising superbugs will emerge in the future and students should be challenged now with some mindstimulating ideas and exercises in their microbiology class. To develop a supplementary tool to evaluate students’ comprehension and to prepare them for the predicted superbugs unknown to us, a writing project entitled “Constructing Your Own Superbug” was designed to achieve these goals.

Yun-Chi Chen

2013-12-01

246

Records management policies and requirements  

Energy Technology Data Exchange (ETDEWEB)

The purpose of these Records Management Policies and Requirements (RMPR) is to establish policies and requirements and assign responsibility for the identification, collection, organization, processing and storage of records of the civilian radioactive waste management program in order to document and facilitate the review of program activities. 14 refs.

1990-07-01

247

77 FR 8174 - EPAAR Prescription for Work Assignments  

Science.gov (United States)

...EPA-HQ-OARM-2010-0273; FRL-9630-4] EPAAR Prescription for Work Assignments AGENCY: Environmental...EPA Acquisition Regulation (EPAAR) prescription for the work assignment clause. This...rule provides revised language to the prescription for the work assignment clause,...

2012-02-14

248

Electre tri method used to storage location assignment into categories  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in english Day after day, the importance of a company having an efficient storage location assignment system increases. Moreover, since products have different warehouse costs and customers' requirements are also different, it is important to sort products in order to adopt strategies for inventory management [...] that are appropriate for each product. However, adopting a policy for each product is not applicable in the real world. Therefore, companies usually categorize products into classes and thereafter adopt specific inventory management policies. Given this situation, this paper puts forward the arguments for adopting a multi-criteria method, Electre TRI, to sort products that both considers criteria relating to the characteristics of a product as to its physical location in the warehouse and the criteria that are important for inventory strategies, such as, for example, the profitability of each unit held in storage.

Marcele Elisa, Fontana; Cristiano Alexandre Virgínio, Cavalcante.

249

A writing intensive introductory course for RN to BSN students.  

Science.gov (United States)

This article describes learning strategies used with RN to BSN students in their 1st nursing course to successfully learn how to write formal papers using the American Psychological Association (APA) format. This 1st nursing course, a writing intensive, requires 4 short papers with self, peer, and teacher critiques and opportunities to rewrite. Students learn the style of professional nursing discourse, mastery of APA format, and development of additional skills in following directions and in critiquing their own work. An additional benefit is to enhance learning about professional nursing topics. By mastering writing skills in this initial course, students are able to successfully complete writing assignments in future courses and, in some cases, move on to publication. PMID:24300250

Tesh, Anita S; Hyde, Yolanda M; Kautz, Donald D

2014-01-01

250

Activity Based Physics Alternative Homework Assignments: Tailgating  

Science.gov (United States)

This page contains an alternative homework problem related to tailgating and the related physics. Users will be prompted to make calculations about stopping distance in a vehicle traveling at high speed behind another. The problem is designed to allow students to independently explore inertia in motion and the relationship between mass and inertia. This item is part of a larger collection of alternative problems based on physics education research.

Vick, K.; Redish, Edward F.; Cooney, Patrick

2009-01-06

251

Development of a decision support model for scheduling clinical studies and assigning medical personnel  

DEFF Research Database (Denmark)

Clinical studies for the development of new drugs in the pharmaceutical industry consist of a number of individual tasks which have to be carried out in a pre-defined chronological order. Each task requires certain types of medical personnel. This paper investigates the scheduling of clinical studies to be performed during a short-term planning horizon, the allocation of workforce between the studies, and the assignment of individual employees to tasks. Instead of developing a complex monolithic decision model, a hierarchical modelling approach is suggested. In the first stage, a compact integer optimization model is solved in order to determine the start-off times of the studies and the required staffing while taking the limited availability of personnel into account. The objective is to minimize total staffing costs. The assignment of individual employees to tasks is then made in the second stage of the procedure using a binary optimization model. Keywords personnel scheduling - task assignment - clinicalstudies - pharmaceutical industry - optimization model

Grunow, Martin; GĂĽnther, H.O.

2004-01-01

252

Assigning Backbone NMR Resonances for Full Length Tau Isoforms: Efficient Compromise between Manual Assignments and Reduced Dimensionality  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Tau protein is the longest disordered protein for which nearly complete backbone NMR resonance assignments have been reported. Full-length tau protein was initially assigned using a laborious combination of bootstrapping assignments from shorter tau fragments and conventional triple resonance NMR experiments. Subsequently it was reported that assignments of comparable quality could be obtained in a fully automated fashion from data obtained using reduced dimensionality NMR (RDNMR) experiments...

Harbison, Nicholas W.; Bhattacharya, Shibani; Eliezer, David

2012-01-01

253

Students' perspectives on e-learning and the use of a virtual learning environment in dance education  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The aim of the study was to find out how dance students experienced learning in an international distance education program delivered in an e-learning format using a virtual learning environment platform. In order to organize the students’ experiences with the various learning assignments, we focused on three broad categories of learning tasks: individual writing assignments, collaborative assignments, and individual practical assignments. Data were collected from 42 students using a ...

Leijen, A?; Admiraal, W.; Wildschut, Liesbeth; Simons, P. R. J.

2008-01-01

254

Students as teachers in an anatomy dissection course.  

Science.gov (United States)

One way to improve students' learning outcomes and well-being is to change teaching practices to allow students to become more active participants. We used an anatomy dissection course to test a cooperative group work method in which first-year veterinary students took turns leading their peer group and were each responsible for teaching the anatomy of a particular topographic region. The important blood vessels, lymphatic system, and nerves of each region of the body were covered. Students felt that exploration of the entire topographic region helped them to acquire a comprehensive understanding of the respiratory apparatus and the cardiovascular and nervous systems. Assigning individual tasks to each group member resulted in sharing the workload equally. Open-ended comments revealed that support from other group members was important for the students' learning experience, but the results also offered insight into a lack of constructive criticism. While teaching was considered challenging, and even a stress factor that hindered learning for some students, group work was generally held to be supportive of learning. The results suggest that more thorough instruction of students in their group work and in their individual tasks is required. Some students experienced difficulty in expressing their concerns openly and in seeking guidance from teachers, demonstrating the need for further investigation regarding students' self-regulation skills. Comments from the open-ended responses suggest that use of a cooperative learning method in anatomy dissection courses not only deepens student understanding of a subject but also offers first-year students an opportunity to practice the generic skills that will be needed in their future profession. PMID:24219999

Salomäki, Tiina; Laakkonen, Juha; Ruohoniemi, Mirja

2014-01-01

255

Class Size, Class Composition, and the Distribution of Student Achievement  

Science.gov (United States)

Using richly detailed data on fourth- and fifth-grade students in the North Carolina public school system, I find evidence that students are assigned to classrooms in a non-random manner based on observable characteristics for a substantial portion of classrooms. Moreover, I find that this non-random assignment is statistically related to class…

Bosworth, Ryan

2014-01-01

256

A Bayesian approach to simultaneously quantify assignments and linguistic uncertainty  

Energy Technology Data Exchange (ETDEWEB)

Subject matter expert assessments can include both assignment and linguistic uncertainty. This paper examines assessments containing linguistic uncertainty associated with a qualitative description of a specific state of interest and the assignment uncertainty associated with assigning a qualitative value to that state. A Bayesian approach is examined to simultaneously quantify both assignment and linguistic uncertainty in the posterior probability. The approach is applied to a simplified damage assessment model involving both assignment and linguistic uncertainty. The utility of the approach and the conditions under which the approach is feasible are examined and identified.

Chavez, Gregory M [Los Alamos National Laboratory; Booker, Jane M [BOOKER SCIENTIFIC FREDERICKSBURG; Ross, Timothy J [UNM

2010-10-07

257

Statistics for Ecology and Environmental Science Students  

Science.gov (United States)

This article provides the author's teaching philosophy for statistics. It includes brief lesson plans and assignments/activities which aim to instill a better understanding of statistics in students of the Ecology and Environmental Science disciplines.

Streever, Bill

2010-02-16

258

The effect of mastery learning on student learning of chemical stoichiometry  

Science.gov (United States)

This study attempted to determine if students achieve better results on the stoichiometry learning objectives of general chemistry using mastery learning or traditional teaching methods. The study utilized a quasi-experimental posttest-only design, and took place during the spring 2007 semester. Over a three-week period 52 students in two general chemistry classes received mastery learning instruction in chemical stoichiometry while 54 students in two other general chemistry classes received traditional instruction in chemical stoichiometry. Two instructors participated in the study, with each instructor teaching one control class and one treatment class. The mastery learning strategies included frequent feedback on student learning and the assigning of correctives for skills not yet mastered. A written stoichiometry exam and a quantitative laboratory practical assessed the student learning. ANOVA for data from the written stoichiometry exam indicated that students receiving mastery learning instruction had statistically higher achievement on mathematical problem solving than students receiving traditional teaching instruction, F = 8.108, p = .005. ANOVA for data from the quantitative laboratory practical did not indicate statistically higher achievement on quantitative experimental design, F = 2.012, p = .160. Chemical stoichiometry has been the most difficult concept for students in general chemistry, and general chemistry is an early requirement of degree programs in most fields of science and engineering. Increasing the student learning of chemical stoichiometry may provide the social change needed to open up careers in these fields to more students of varying differentiated backgrounds.

Fier, Scott Robert

259

TARGETING L2 WRITING PROFICIENCIES: INSTRUCTION AND AREAS OF CHANGE IN STUDENTS' WRITING OVER TIME  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Writing in a second language is a complex activity requiring proficiency in a number of different areas. l Writing programmes often focus on particular areas of skill and knowledge that are seen as important to the overall process. This study looks at the effects of the focus of teaching on student writing. Fifty students on an eight-week pre-sessional programme were asked to write a 250-word assignment at the start and the end of their courses. These were graded on a nineband scale using a s...

Alasdair Archibald

2001-01-01

260

The Land of Confusion? High School Students and Their Use of the World Wide Web for Research.  

Science.gov (United States)

Examines high school students' use of the World Wide Web to complete assignments. Findings showed the students used a good variety of resources, including libraries and the World Wide Web, to find information for assignments. However, students were weak at determining the quality of the information found on web sites. Students did poorly at…

Lorenzen, Michael

2002-01-01

 
 
 
 
261

Regulatory focus and the assignment of punishment  

Directory of Open Access Journals (Sweden)

Full Text Available Regulatory Focus has been demonstrated to influence human behavior in a number of domains, such as object valuation and readiness to commit time or money to social projects. It has also been demonstrated to influence an individual’s approach to mistakes; and a person’s preference for global or local processing of information. The present work seeks to consider how regulatory focus might interact with punitive behaviors, specifically, the assignment of legal punishment. In this study, 240 undergraduates completed a series of written instruments that assessed their regulatory focus. They read a vignette that described a target that commits a crime, is detected by the police, and is arrested due to a careless mistake. Participants were asked what level of legal punishment they deemed appropriate. Participants’ punitive evaluations show that there are significant interactions a between the regulatory focus of the participant and the regulatory focus of the target and b between the regulatory focus of the participant and the level of detail used to describe the target and her behavior. In each case, when the regulatory foci matched, causing ‘fit,’ the participant was more lenient than in the non-fit condition.

Chloe Carmichael

2007-06-01

262

Joint Power Control, Base Station Assignment, and Channel Assignment in Cognitive Femtocell Networks  

Directory of Open Access Journals (Sweden)

Full Text Available Cognitive radio and femtocells are recent technology breakthroughs that aim to achieve throughput improvement by means of spectrum management and interference mitigation, respectively. However, these technologies are limited by the former's susceptibility to interference and the latter's dependence on bandwidth availability. In this paper, we overcome these limitations by integrating cognitive radio and femtocell technology and exploring its feasibility and throughput improvement. To realize this, we propose an integrated architecture and formulate a multiobjective optimization problem with mixed integer variables for the joint power control, base station assignment, and channel assignment scheme. In order to find a pareto optimal solution, a weighted sum approach was used. Based on numerical results, the optimization framework is found to be both stable and converging. Simulation studies further show that the proposed architecture and optimization framework improve the aggregate throughput as the client population rises, hence confirming the successful and beneficial integration of these technologies.

John Paul M. Torregoza

2010-01-01

263

The AWE procedures for dose assignment and investigation of ionizing radiation exposures  

International Nuclear Information System (INIS)

With the introduction of the 1985 Ionising Radiations Regulations new procedures were adopted at the Atomic Weapons Establishment (AWE) for the routine assignment of dose from monitoring results and for the actions required when personal monitoring results exceeded ''alert'' or ''investigation'' levels. This paper describes these procedures and the results of investigations prompted thereby. (Author)

1991-05-03

264

Evaluation of a Patient Perspective Module in a Required Medication Safety and Quality Course at a College of Pharmacy  

Directory of Open Access Journals (Sweden)

Full Text Available Objectives: To develop and evaluate the impact of a module discussing the patient’s perspective on medication errors in a required medication safety course at a college of pharmacy. Methods: Students were required to read Josie’s Story, a true story written by a mother after her daughter died from a medical error, and attend an in-class discussion regarding the book. A questionnaire, which employed a pre-post retrospective method and extracted items from the Caring Ability Inventory, was then administered to measure the change in students’ perceptions of patient care. Additional questions gathered students’ perceptions of the assignment, their personal experiences with the topic, and the importance of medication safety. Results: 120 out of 138 students (response rate = 87% completed the questionnaire. 56% of students indicated they would be more likely to speak with a patient directly about a medication error after reading the book, whereas only 3% were less likely, and 42% indicated they were just as likely. Most students (59% reported that they felt more motivated to learn about medication safety after reading Josie’s Story. Implications: This course previously addressed strategies to prevent medication errors. Successfully adding a component that introduces how a medication error impacted a patient and her family may help motivate students to recognize the importance and need for a culture of safety, personalize how medication errors impact patients, and provide a venue for students to gain patient centeredness and caring skills.

Jessica N. Battaglia

2013-01-01

265

Analysis of an Air Conditioning Coolant Solution for Metal Contamination Using Atomic Absorption Spectroscopy: An Undergraduate Instrumental Analysis Exercise Simulating an Industrial Assignment  

Science.gov (United States)

A real-life analytical assignment is presented to students, who had to examine an air conditioning coolant solution for metal contamination using an atomic absorption spectroscopy (AAS). This hands-on access to a real problem exposed the undergraduate students to the mechanism of AAS, and promoted participation in a simulated industrial activity.

Baird, Michael J.

2004-01-01

266

Gender-Inclusive Housing Preferences: A Survey of College-Aged Transgender Students  

Science.gov (United States)

Traditional on-campus housing assignments at colleges and universities are made on the basis of legal sex, where students are housed only with other students of the same legal sex. This method is problematic for transgender and gender-nonconforming students, who may not identify with the gender assigned to them at birth. Recently, some…

Krum, Tiana E.; Davis, Kyle S.; Galupo, M. Paz

2013-01-01

267

Basic Visual Merchandising. Second Edition. [Student's Manual and] Answer Book/Teacher's Guide.  

Science.gov (United States)

This student's manual that features content needed to do tasks related to visual merchandising is intended for students in co-op training stations and entry-level, master employee, and supervisory-level employees. It contains 13 assignments. Each assignment has questions covering specific information and also features activities in which students

Luter, Robert R.

268

Vietnamese Students Employability Skills  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper attempts to investigate if the International University (IU) students’ core competencies can meet the requirements set by employers, what are the differences in core competencies in final year students (or undergraduates), and how they view themselves compared with ex-students after one or two years in working environment, how differences in levels of competencies which are expected to outperform the job expectations and competencies possessed by ex-students, and any dif...

Nguyen Minh Tuan

2011-01-01

269

Strong cutting plane algorithm for an assignment problem with side constraints  

Energy Technology Data Exchange (ETDEWEB)

This paper treats an assignment problem with the additional constraints that specified variables are required to be equal to each other. The problem arose in the evaluation of the classroom capacity of a large university. Some classes of facets of the convex hull of the 0-1 solutions are characterized. An algorithm is given for solving the separation problem over the polytope defined by the assignment constraints, the side constraints and a large class of facet defining inequalities. By using this algorithm and the simplex method, it is possible to solve most instances of the problem without branch-and-bound. 9 references, 3 figures.

Aboudi, R.; Nemhauser, G.L.

1987-03-01

270

Obesogenic environmental influences on young adults: evidence from college dormitory assignments.  

Science.gov (United States)

This study utilizes a natural experiment-conditionally random dormitory assignments of first-year US college students-to investigate the influence of obesogenic environmental factors in explaining changes in weight and exercise behavior during the 2009-2010 academic year. The design addresses potential selection biases resulting from the likelihood that individuals sort into built environments that match their preferences for exercise and healthy eating. We find some evidence that the food environment, specifically access to campus dining, significantly affected the weight of female students in our study. Females assigned to dormitories where the nearest campus dining hall was closed on the weekends gained about 1lb less over the course of the year than females assigned to dormitories near dining halls that were open 7 days a week. We also find some evidence that female who lived in close proximity to a grocery store gained less weight over the course of the year. Finally, females who lived closer to campus gym reported more frequent exercise over the course of the year. We do not find significant effects of the built environment on weight changes of males in our sample, but we are cautious to draw strong conclusions from this because the male weight change in our sample was quite small. PMID:23764142

Kapinos, Kandice A; Yakusheva, Olga; Eisenberg, Daniel

2014-01-01

271

A Method for Solving Balanced Intuitionistic Fuzzy Assignment Problem  

Directory of Open Access Journals (Sweden)

Full Text Available In this paper, we investigate an assignment problem in which cost coefficients are triangular intuitionistic fuzzy numbers. In conventional assignment problem, cost is always certain. This paper develops an approach to solve an intuitionistic fuzzy assignment problem where cost is not deterministic numbers but imprecise ones. Here, the elements of the costs (profits matrix of the assignment problem are triangular intuitionistic fuzzy numbers. Then its triangular shaped membership and non-membership functions are defined. A new ranking procedure which can be found in [4] and is used to compare the intuitionistic fuzzy numbers so that an Intuitionistic Fuzzy Hungarian method may be applied to solve the intuitionistic fuzzy assignment problem. Numerical examples show that an intuitionistic fuzzy ranking method offers an effective tool for handling an intuitionistic fuzzy assignment problem.

P. Senthil Kumar

2014-03-01

272

Type II Sensitivity Analysis in Solid Assignment Problems  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Type II sensitivity of the solid assignment problem is discussed in this paper. Parametric-bound method is proposed that determines the Type II sensitivity ranges of cost coefficients in the solid assignment problem. The procedure of the parametric-bound method is demonstrated with a numerical example. The result obtained by the proposed method will help the decision makers to take an appropriate action while handling various types of assignment problems having three parameters.

Kavitha K; Pandian ponnaiah

2012-01-01

273

Type II Sensitivity Analysis in Solid Assignment Problems  

Directory of Open Access Journals (Sweden)

Full Text Available Type II sensitivity of the solid assignment problem is discussed in this paper. Parametric-bound method is proposed that determines the Type II sensitivity ranges of cost coefficients in the solid assignment problem. The procedure of the parametric-bound method is demonstrated with a numerical example. The result obtained by the proposed method will help the decision makers to take an appropriate action while handling various types of assignment problems having three parameters.

Kavitha K.

2012-11-01

274

Dynamical Frequency Assignment of WSN Based on Cloud Computing Technology  

Digital Repository Infrastructure Vision for European Research (DRIVER)

As the rapid development of Wireless Sensor Networks(WSN), the demands of frequency rose sharply, thereby how to deal with the frequency assignment of WSN is a difficult problem. A dynamical and real-time frequency assignment system is proposed, which was based on the network architecture of Internet of Things by the means of Cloud Computing technique. The system assigned the frequency dynamically and real-timely that it can improve the frequency utilization rate. This system is an efficient ...

2012-01-01

275

Wavelength assignment for locally twisted cube communication pattern on optical bus network-on-chip  

Science.gov (United States)

Optical network-on-chip (NoC) is a new designing of Multi-Processor System-on-Chip (MPSoC). Global bus is the simplest logical topology of optical NoC. Static routing and wavelength assignment is one important communication mechanism of optical NoC. This paper addresses the routing and wavelength assignment (RWA) problem for locally twisted cube communication pattern on global bus optical NoC. For that purpose, a routing scheme, that is an embedding scheme, is proposed, and a wavelength assignment scheme under the embedding scheme is designed. The number of required wavelengths is shown to attain the minimum, guaranteeing the optimality of the proposed scheme.

Zhang, Jing; Yang, Xiaofan; Li, Xianyong

2014-06-01

276

Efficient Role Assignment Scheme for Multichannel Wireless Mesh Networks  

Directory of Open Access Journals (Sweden)

Full Text Available a wireless mesh network (WMN is cost-effective access network architecture. The performance of multi-hop communication quickly reduces as the number of hops becomes larger. Nassiri et al. proposed a Molecular MAC protocol for autonomic assignment and use of multiple channels to improve network performance. In the Molecular MAC protocol, each node forms a shortest path-spanning tree to a gateway node linked to a wired Internet. After a tree is formed, the nodes with an even-numbered depth and an odd-numbered depth are assigned with the roles of a nucleus and an electron, respectively. After such roles are assigned, each nucleus selects an idle channel. However, this protocol has the following drawback; since the nodes with an even-numbered depth are assigned with the role of a nucleus, there are many nuclei in the topology. The number of assigned channels tends to increase, since each nucleus selects an idle channel that is not currently being occupied by its neighboring nuclei. In wireless communications networks, channels are very important resources. Thus, it is necessary to assign the minimum number of channels as little as possible. To do so, this paper proposes an efficient role assignment scheme, which can reduce the number of assigned channels by reducing the number of nodes assigned as nuclei and preventing nodes within the transmission range of each other from becoming nuclei. Based on various simulation results, the proposed scheme was verified.

Sunmyeng Kim

2013-10-01

277

Fixed Channel Assignment and Neural Network Algorithm for Channel Assignment Problem in Cellular Radio Networks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The channel-assignment problem is important in mobile telephone communication. Since the usable range of the f...

Omid Moradi

2010-01-01

278

Using a simulated environment to support students learning clinical skills.  

Science.gov (United States)

Within intellectual disability nursing students are prepared within a biopsychosocialeducational model and curriculum address these challenges. Using a simulated learning environment has great potential for promoting competence and in-depth knowledge of substantive topics relevant to practice. This article presents an assignment designed to more closely resemble real-world activities to allow students develop and exercise skills that translate to practice activities and incorporates a student's reflective comments on the process. The assignment was designed to foster intellectual disability student nurses ability to facilitate family/client education. The aim of the assignment was fulfilled through the students designing a clinical skill teaching session that could be used with families/clients. The sessions were recorded and the student reviewed their recording to reflect on their performance and to self assess. To facilitate student learning the modules academic lecturer also reviewed the recording and both lecturer and student meet to discuss the reflection and self assessment. PMID:23602694

Doody, O; Condon, M

2013-11-01

279

Do we engage the student in e-assessment by personalising lecturers' feedback interventions?  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper describes the results of an eighteen month study evaluating what students' perceptions were of digital ink feedback on electronic assignments. It was a comparative study with 10 distance learning lecturers, (hereafter referred to as tutors) marking up to a maximum of 600 students' electronic assignments over, two nine month presentations of the UK Open University (OU) course, T175 Networked Living. Assignments were submitted by students over the internet to a centralised web depo...

2008-01-01

280

Understanding Student Computational Thinking with Computational Modeling  

CERN Multimedia

Recently, the National Research Council's framework for next generation science standards highlighted "computational thinking" as one of its "fundamental practices". Students taking a physics course that employed the Arizona State University's Modeling Instruction curriculum were taught to construct computational models of physical systems. Student computational thinking was assessed using a proctored programming assignment, written essay, and a series of think-aloud interviews, where the students produced and discussed a computational model of a baseball in motion via a high-level programming environment (VPython). Roughly a third of the students in the study were successful in completing the programming assignment. Student success on this assessment was tied to how students synthesized their knowledge of physics and computation. On the essay and interview assessments, students displayed unique views of the relationship between force and motion; those who spoke of this relationship in causal (rather than obs...

Aiken, John M; Douglas, Scott S; Burk, John B; Scanlon, Erin M; Thoms, Brian D; Schatz, Michael F

2012-01-01

 
 
 
 
281

Flexible Issue Slot Assignment for VLIW Architectures  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Programming specialized processors requires solving complex resource constrain- ts related to the underlying architecture. Although one instruction of the Philips TriMedia VLIW processor can issue five parallel operations, each category of operations can only be allocated to a subset of the five available slots. In this report we show how these restrictions can be translated into constraints based on reservation tables. This allows us to directly apply all classical algorithms for code genera...

Chamski, Zbigniew; Eisenbeis, Christine; Rohou, Erven

1999-01-01

282

An Attempt to Improve Student Engagement with Class Content via a Student-produced Wiki  

Science.gov (United States)

In a freshman-level honors astronomy class, an attempt was made to use a student-produced wiki to improve student engagement and connection with the class material. This attempt was not entirely successful due to unforeseen challenges such as the assignment being too open-ended and too time consuming to grade. Despite these challenges, the wiki was successful in encouraging the students to reflect more on the class material, and to connect that material to the “real world.” While the wiki assignment that was originally attempted will not be repeated in future classes, certain portions will continue to be used to enhance student engagement.

Cobb, B. E.

2014-07-01

283

Chromatographic separation and assignment of absolute configuration of hydroxywarfarin isomers.  

Science.gov (United States)

The absolute configuration of several hydroxywarfarin isomers was assigned using a comparison of elution order on chiral stationary phases, optical rotation, and circular dichroism (CD) spectra, with confirmation of assignments made by comparison between experimental and calculated CD spectra and selective synthesis of hydroxywarfarin isomers from enantiopure warfarin using human liver microsomes. PMID:24339228

Regalado, Erik L; Sherer, Edward C; Green, Mitchell D; Hendersonl, Derek W; Thomas Williamson, R; Joyce, Leo A; Welch, Christopher J

2014-02-01

284

Grid Computing GT4 Core and Service Deployment Assignment  

Science.gov (United States)

Grid Computing GT4 core and service deployment Assignment - The goal of this assignment is to create a Globus 4.0 (GT4) stateful Web service and deploy it in GT4 container, and test it with a simple client.

Ferner, Clayton; Wilkinson, Barry

2011-06-30

285

Crystal spectra and vibrational assignments in. cap alpha. -resorcinol  

Energy Technology Data Exchange (ETDEWEB)

The infrared and Raman spectra of ..cap alpha..-resorcinol crystals are investigated at low temperatures. Fine structure in the vibrational exciton states are resolved. Symmetry assignments of the crystal and molecular transitions are proposed based on the polarization properties of the bands. Most of the earlier assignments are revised.

Tripathi, G.N.R.

1981-01-01

286

76 FR 26232 - EPAAR Prescription for Work Assignments  

Science.gov (United States)

...EPA-HQ-OARM-2010-0273; FRL-9288-3] EPAAR Prescription for Work Assignments AGENCY: Environmental...rule provides revised language to the prescription for the work assignment clause, incorporating...clarifying policy is being added to the prescription for 1511.011-74....

2011-05-06

287

Ensuring Schedulability in the Weapon Target Assignment Problem.  

Science.gov (United States)

Weapon Target Assignment (WTA): Given a set of weapon batteries and a set of incoming targets, what is the assignment of interceptors to targets that will maximize the value of targets killed. *Difficult problem to solve optimally for large numbers of wea...

D. Pederson

2008-01-01

288

An eigenvalue/eigenvector assignment algorithm using output feedback  

Science.gov (United States)

An eigenvalue/eigenvector assignment algorithm using stationary output feedback is presented. The algorithm permits assignment of min (n, m + r - 1) eigenvalues and max (m-1, r-1) eigenvectors, where n, m, r refer to the system state, input and output dimensions, respectively. An example is given to illustrate the design procedures.

Mielke, R. R.; Liberty, S. R.

1983-01-01

289

Development of reference assignment in children: a direct comparison to the performance of cognitive shift  

Science.gov (United States)

The referent of a deictic embedded in a particular utterance or sentence is often ambiguous. Reference assignment is a pragmatic process that enables the disambiguation of such a referent. Previous studies have demonstrated that receivers use social-pragmatic information during referent assignment; however, it is still unclear which aspects of cognitive development affect the development of referential processing in children. The present study directly assessed the relationship between performance on a reference assignment task (Murakami and Hashiya, in preparation) and the dimensional change card sort task (DCCS) in 3- and 5-years-old children. The results indicated that the 3-years-old children who passed DCCS showed performance above chance level in the event which required an explicit (cognitive) shift, while the performance of the children who failed DCCS remained in the range of chance level; however, such a tendency was not observed in the 5-years-old, possibly due to a ceiling effect. The results indicated that, though the development of skills that mediate cognitive shifting might adequately explain the explicit shift of attention in conversation, the pragmatic processes underlying the implicit shift, which requires reference assignment, might follow a different developmental course.

Murakami, Taro; Hashiya, Kazuhide

2014-01-01

290

Development of reference assignment in children: a direct comparison to the performance of cognitive shift.  

Science.gov (United States)

The referent of a deictic embedded in a particular utterance or sentence is often ambiguous. Reference assignment is a pragmatic process that enables the disambiguation of such a referent. Previous studies have demonstrated that receivers use social-pragmatic information during referent assignment; however, it is still unclear which aspects of cognitive development affect the development of referential processing in children. The present study directly assessed the relationship between performance on a reference assignment task (Murakami and Hashiya, in preparation) and the dimensional change card sort task (DCCS) in 3- and 5-years-old children. The results indicated that the 3-years-old children who passed DCCS showed performance above chance level in the event which required an explicit (cognitive) shift, while the performance of the children who failed DCCS remained in the range of chance level; however, such a tendency was not observed in the 5-years-old, possibly due to a ceiling effect. The results indicated that, though the development of skills that mediate cognitive shifting might adequately explain the explicit shift of attention in conversation, the pragmatic processes underlying the implicit shift, which requires reference assignment, might follow a different developmental course. PMID:24910629

Murakami, Taro; Hashiya, Kazuhide

2014-01-01

291

Breed assignment of Italian cattle using biallelic AFLP markers.  

Science.gov (United States)

The verification of the breed origin of animal products is relevant for food safety and authenticity. We assessed the suitability of AFLP molecular markers in the assignment of cattle individuals to their breed of origin. Three hundred and ninety-six animals belonging to 16 cattle breeds genotyped with 141 AFLP markers were used as reference data set. Assignment was performed with likelihood (aflpop) and Bayesian (structure) methods. The Bayesian approach was superior to the likelihood algorithm with respect to (i) the correct assignment of simulated individuals to their breed of origin (93% vs. 81% respectively), (ii) the correct assignment of 44 sampled Romagnola animals (91% vs. 45% respectively) and (iii) the correct classification of animals belonging to a breed that was not included within the reference dataset. Thus, AFLP profiling in combination with the Bayesian approach seems a useful tool for breed assignment. PMID:17326802

Negrini, R; Milanesi, E; Colli, L; Pellecchia, M; Nicoloso, L; Crepaldi, P; Lenstra, J A; Ajmone-Marsan, P

2007-04-01

292

Windows Phone 7 Application : Student Helper  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This final year project was based on the Windows Phone 7 mobile operating system with the main goal to build a Windows Phone 7 mobile application for students. A student is to be able to manage schedules, record class notes and course assignments with the help of the application. The project was carried out on Nokia Lumia 800.

2013-01-01

293

DRUG REGULATORY STATUS ASSIGNMENT CRITERIA: A CONTRAST AMONG 2 COUNTRIES  

Directory of Open Access Journals (Sweden)

Full Text Available After a laborious and extravagant procedure the drug finally enters the market for use. But who determines the new drug status as a prescription only or an OTC? There is a clear cut contrast between the US and India with respect to their assignment guidelines and the future prospect of a new drug. In the US the regulatory status of the approved drug is determined as per the FDA guidelines (FDCA of 1938 in accordance with the Durham-Humphrey act of 1951 which depicts the criteria required for a pharmaceutical product to be marketed as a prescription drug or an OTC product. CDSCO headed by the DCGI is the authority responsible for determining the regulatory status which acts as per the regulations listed in Drugs and Cosmetics Act of 1940 in India. The US regulatory system stipulates the malleability for the inter conversion of the drugs regulatory status known as “Rx to OTC switch” which is deficient in India. Perfect implementation of regulations in India will promote effective use of OTC’s and forestall illicit sale of prescription drugs as OTC’s.

Anoop Paruchuri*, Vini Pavithran , M. Pavani , S. Selvamuthukumaran and G. P. Mohanta

2013-01-01

294

Introduction to Hydraulics. Student's Manual.  

Science.gov (United States)

This manual on hydraulics is one of a series of individualized instructional materials for students. The manual is self-paced, but is designed to be used under the supervision of an instructor. The manual contains 10 assignments, each with all the information needed, a list of objectives that should be met, and exercise questions that can help in…

Texas Univ., Austin. Extension Instruction and Materials Center.

295

Evaluating Experiential Learning in Organizational Behavior: Taking Measure of Student Perception Regarding Group Experience  

Directory of Open Access Journals (Sweden)

Full Text Available Problem statement: The purpose of this study was to determine undergraduate student perceptions in the areas of group experience within the context of an undergraduate organizational behavior business class community service assignment. College students, as part of an in-class service-learning project, were assigned to teach business related curriculum to at-risk high school students. Approach: Students, enrolled in the required senior level business course, were then assessed in the following areas: service learning experience and group experience. A multiple-choice questionnaire was administered to undergraduate students in an organizational and administrative behavior class and analyzed for correlations and relationships. The survey was administered in week eleven of a traditional semester and in the last week of the community service project. The survey was comprised of seven questions relating to group experience and one based on the impact of the community service project itself. Results: Significant findings revealed a positive correlation between the group experience and the feelings toward the project. In addition, multiple linear regressions suggested a positive and significant prediction. Conclusion: From the findings, implications for the development of experiential learning projects for use in the college classroom will be discussed. When paired with the results of previous research, the findings of this research can be very useful in developing group based service learning projects at the undergraduate level. Based upon the importance of service learning as an experiential teaching style, it is critical to understand how to better use this vehicle for discovery.

Roxanne Helm-Stevens

2009-01-01

296

Addressing AACSB Global and Technology Requirements: Exploratory Assessment of a Marketing Management Assignment  

Science.gov (United States)

The Association to Advance Collegiate Schools of Business (AACSB) standards mandate knowledge of global and technology issues. Businesses desire employees with ability to analyze international markets and to be adept with technology. Taxpayers supporting public universities and organizations hiring business school graduates expect accountability…

Greene, Scott; Bao, Yongchuan

2009-01-01

297

Eigenvalue assignment strategies in rotor systems  

Science.gov (United States)

The work done to establish the control and direction of effective eigenvalue excursions of lightly damped, speed dependent rotor systems using passive control is discussed. Both second order and sixth order bi-axis, quasi-linear, speed dependent generic models were investigated. In every case a single, bi-directional control bearing was used in a passive feedback stabilization loop to resist modal destabilization above the rotor critical speed. Assuming incomplete state measurement, sub-optimal control strategies were used to define the preferred location of the control bearing, the most effective measurement locations, and the best set of control gains to extend the speed range of stable operation. Speed dependent control gains were found by Powell's method to maximize the minimum modal damping ratio for the speed dependent linear model. An increase of 300 percent in stable speed operation was obtained for the sixth order linear system using passive control. Simulations were run to examine the effectiveness of the linear control law on nonlinear rotor models with bearing deadband. The maximum level of control effort (force) required by the control bearing to stabilize the rotor at speeds above the critical was determined for the models with bearing deadband.

Youngblood, J. N.; Welzyn, K. J.

1986-01-01

298

40 CFR 80.1128 - General requirements for RIN distribution.  

Science.gov (United States)

...2009-07-01 false General requirements for RIN distribution. 80.1128 Section 80... § 80.1128 General requirements for RIN distribution. (a) RINs assigned to volumes of renewable fuel. (1) Assigned RIN, for the purposes of this subpart,...

2009-07-01

299

40 CFR 80.1428 - General requirements for RIN distribution.  

Science.gov (United States)

...2010-07-01 false General requirements for RIN distribution. 80.1428 Section 80... § 80.1428 General requirements for RIN distribution. (a) RINs assigned to volumes of renewable fuel. (1) Assigned RIN, for the purposes of this subpart,...

2010-07-01

300

Structure-based protein NMR assignments using native structural ensembles  

Energy Technology Data Exchange (ETDEWEB)

An important step in NMR protein structure determination is the assignment of resonances and NOEs to corresponding nuclei. Structure-based assignment (SBA) uses a model structure ('template') for the target protein to expedite this process. Nuclear vector replacement (NVR) is an SBA framework that combines multiple sources of NMR data (chemical shifts, RDCs, sparse NOEs, amide exchange rates, TOCSY) and has high accuracy when the template is close to the target protein's structure (less than 2 A backbone RMSD). However, a close template may not always be available. We extend the circle of convergence of NVR for distant templates by using an ensemble of structures. This ensemble corresponds to the low-frequency perturbations of the given template and is obtained using normal mode analysis (NMA). Our algorithm assigns resonances and sparse NOEs using each of the structures in the ensemble separately, and aggregates the results using a voting scheme based on maximum bipartite matching. Experimental results on human ubiquitin, using four distant template structures show an increase in the assignment accuracy. Our algorithm also improves the robustness of NVR with respect to structural noise. We provide a confidence measure for each assignment using the percentage of the structures that agree on that assignment. We use this measure to assign a subset of the peaks with even higher accuracy. We further validate our algorithm on data for two additional proteins with NVR. We then show the general applicability of our approach by applying our NMA ensemble-based voting scheme to another SBA tool, MARS. For three test proteins with corresponding templates, including the 370-residue maltose binding protein, we increase the number of reliable assignments made by MARS. Finally, we show that our voting scheme is sound and optimal, by proving that it is a maximum likelihood estimator of the correct assignments.

Apaydin, Mehmet Serkan; Conitzer, Vincent; Donald, Bruce Randall [Duke University, Department of Computer Science (United States)

2008-04-15

 
 
 
 
301

Comparison of Cognitive-Behavioural Therapy and Psychodynamic Therapy in the Treatment of Anxiety among University Students: An Effectiveness Study  

Science.gov (United States)

The aim of the present study was to compare the effectiveness of cognitive-behavioural (CBT) and psychodynamic (PDT) therapies in the treatment of anxiety among university students. To this aim, the Symptom Questionnaire (SQ) was completed by 30 students assigned to CBT and by 24 students assigned to PDT, both at the beginning and at the end of…

Monti, Fiorella; Tonetti, Lorenzo; Ricci Bitti, Pio Enrico

2014-01-01

302

Possible Modifications of the Multiple Criteria Assignment Method  

Directory of Open Access Journals (Sweden)

Full Text Available The paper introduces the multiple criteria decision making method using one of basic problems of linear programming as its computational principle; thus, the algorithm is based on the assignment problem enabling the assignment of alternatives and rank. The known basic algorithm of the assignment method is described and some modifications are proposed that take into account differences among criterial values or some stochastic elements. Finally, the article offers some practical application in investment decision making process in the field of capital market with shares funds.

Adam Borovicka

2013-07-01

303

Dynamical Frequency Assignment of WSN Based on Cloud Computing Technology  

Directory of Open Access Journals (Sweden)

Full Text Available As the rapid development of Wireless Sensor Networks(WSN, the demands of frequency rose sharply, thereby how to deal with the frequency assignment of WSN is a difficult problem. A dynamical and real-time frequency assignment system is proposed, which was based on the network architecture of Internet of Things by the means of Cloud Computing technique. The system assigned the frequency dynamically and real-timely that it can improve the frequency utilization rate. This system is an efficient path to face the frequency needs of WSN.

YANG Jie

2012-10-01

304

A note on the assignments of Rydberg states of COS  

Science.gov (United States)

Assignments of the Rydberg states which converge to the respective X-tilde and B-tilde ion states of the COS(+) ion are reported. The assignments were made based on previously established orderings for the quantum defects of isoelectronic molecules. The Rydberg series I and II, which converge to the X-tilde 2 Pi state of COS(+), and the series III, IV, V, VI and VII, which converge to the B-tilde 2 Sigma + state, are assigned to molecular orbitals characterized by predominant sulfur orbitals, in contrast to those converging to the C-tilde states, which are characterized by oxygen atomic orbitals.

Wu, C. Y. R.

1982-01-01

305

Derivation lengths classification of Gödel's T extending Howard's assignment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Let T be Gödel's system of primitive recursive functionals of finite type in the lambda formulation. We define by constructive means using recursion on nested multisets a multivalued function I from the set of terms of T into the set of natural numbers such that if a term a reduces to a term b and if a natural number I(a) is assigned to a then a natural number I(b) can be assigned to b such that I(a) is greater than I(b). The construction of I is based on Howard's 1970 ordinal assignment for...

2012-01-01

306

The Pedagogical Anatomy of Peer-Assessment: Dissecting a peerScholar Assignment  

Directory of Open Access Journals (Sweden)

Full Text Available Peer-assessment is a process wherein students grade the work of their peers rather than relying on an expert. With the recent advent of online tools for peer-assessment [1] it is possible to utilize peer-assessment within any course context, even extremely large courses, with virtually no logistic or economic barriers. Given this potential for widespread use, the present paper highlights the pedagogical value of peer-assessment by breaking down a specific assignment and highlighting the manner in which the learning experienced by students maps onto prominent categorizations of strong pedagogy. We argue that peer-assessment provides a powerful compliment to multiple-choice testing by providing support for the sort of deep, critical and creative learning that is simply not possible to either encourage or assess via multiple- choice.

Dwayne E. Paré

2009-10-01

307

A Divide-and-Conquer Scheme for Assigning Roles in Multi-Channel Wireless Mesh Networks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A multi-channel MAC seems to be an interesting approach for improving network throughput by multiplexing transmissions over orthogonal channels. In particular, Molecular MAC has recently proposed to modify the standard IEEE 802.11 DCF access method to use dynamic channel switching for efficient packet forwarding over multiple hops. However, this MAC layer requires role and channel assignment to nodes: some of them use a static channel, while others dynamically switch to neig...

Darties, Benoit; Theoleyre, Fabrice; Duda, Andrzej

2009-01-01

308

Assignment of symbiotic developmental phenotypes to common and specific nodulation (nod) genetic loci of Rhizobium meliloti.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Rhizobium meliloti nodulation (nod) genes required for specific infection and nodulation of alfalfa have been cloned. Transposon Tn5 mutagenesis defined three nod regions spanning 16 kilobases of the pSym megaplasmid. Genetic and cytological studies of 62 nodulation-defective mutants allowed the assignment of symbiotic developmental phenotypes to common and specific nod loci. Root hair curling was determined by both common (region I) and specific (region III) nod transcription units; locus II...

Debelle?, F.; Rosenberg, C.; Vasse, J.; Maillet, F.; Martinez, E.; De?narie?, J.; Truchet, G.

1986-01-01

309

Managing the competencies of team members in design project through multi-period task assignment.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Product design projects involve multiple team members with various knowledge and competencies that have to evolve with time, due to rapid organizational, technological and marketing changes. Project managers require management methods to optimize the assignment of tasks to human resources according to their competency levels and the need for competency evolution. In this paper, we tackle this optimization problem in the context of multiple design projects and multiple periods. The model we pr...

Hlaoittinun, Onanong; Bonjour, Eric; Dulmet, Maryvonne

2010-01-01

310

Evolution and Biochemistry of Family 4 Glycosidases: Implications for Assigning Enzyme Function in Sequence Annotations  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Glycosyl hydrolase Family 4 (GH4) is exceptional among the 114 families in this enzyme superfamily. Members of GH4 exhibit unusual cofactor requirements for activity, and an essential cysteine residue is present at the active site. Of greatest significance is the fact that members of GH4 employ a unique catalytic mechanism for cleavage of the glycosidic bond. By phylogenetic analysis, and from available substrate specificities, we have assigned a majority of the enzymes of GH4 to five subgrou...

Hall, Barry G.; Pikis, Andreas; Thompson, John

2009-01-01

311

Let Them Speak for Themselves: ESL Students on Multiculturalism.  

Science.gov (United States)

Reviews experiences teaching diverse groups of college English-as-a-Second-Language (ESL) students. Writing assignments encouraged students to depict a particular aspect of multiculturalism in an autobiographical manner. Until teachers give greater credence to the complex voices of their students, multiculturalism will be an academic discourse the…

McQuillan, Gene

1994-01-01

312

Effectively Involving Faculty in the Assessment of Student Engagement  

Science.gov (United States)

The formal assessment of student engagement, as it has developed in recent years, is not necessarily a faculty-driven activity. Most faculty members who teach undergraduates are involved in the informal assessment of student engagement by taking attendance, observing student behaviors or expressions in class, providing feedback on assignments, and…

Nelson Laird, Thomas F.; Smallwood, Robert; Niskode-Dossett, Amanda Suniti; Garver, Amy K.

2009-01-01

313

Navigating the Bumpy Road to Student-Centered Instruction.  

Science.gov (United States)

Common faculty concerns about implementing student-centered learning are discussed, and useful techniques for addressing them are offered. Issues include budgeting in-class activity time, losing control of the class, uncompleted assignments, student understanding of open-ended problems, student dislike or abuse of group work, and helping at-risk…

Felder, Richard M.; Brent, Rebecca

1996-01-01

314

A modified strategy for sequence specific assignment of protein NMR spectra based on amino acid type selective experiments  

International Nuclear Information System (INIS)

The determination of the three-dimensional structure of a protein or the study of protein-ligand interactions requires the assignment of all relevant nuclei as an initial step. This is nowadays almost exclusively performed using triple-resonance experiments. The conventional strategy utilizes one or more pairs of three dimensional spectra to obtain redundant information and thus reliable assignments. Here, a modified strategy for obtaining sequence specific assignments based on two dimensional amino acid type selective triple-resonance experiments is proposed. These experiments can be recorded with good resolution in a relatively short time. They provide very specific and redundant information, in particular on sequential connectivities, that drastically increases the ease and reliability of the assignment procedure, done either manually or in an automated fashion. The new strategy is demonstrated with the protein domain PB1 from yeast CDC24p

2005-02-01

315

Teaching Students How to Study: A Workshop on Information Processing and Self-Testing Helps Students Learn  

Science.gov (United States)

We implemented a "how to study" workshop for small groups of students (6-12) for N = 93 consenting students, randomly assigned from a large introductory biology class. The goal of this workshop was to teach students self-regulating techniques with visualization-based exercises as a foundation for learning and critical thinking in two areas:…

Stanger-Hall, Kathrin F.; Shockley, Floyd W.; Wilson, Rachel E.

2011-01-01

316

Task Assignment Problem Solved by Continuous Hopfield Network  

Directory of Open Access Journals (Sweden)

Full Text Available The task assignment problem with non uniform communication costs (TAP consists in finding an assignment of the tasks to the processors such that the total execution and communication costs is minimized. This problem is naturally formulated as 0-1 quadratic programming subject to linear constraints (QP. In this paper, we propose a new approach to solve the task assignment problem with non uniform communication costs using the continuous Hopfield network (CHN. This approach is based on some energy or Lyapunov function, which diminishes as the system develops until a local minimum value is obtained. We show that this approach is able to determine a good solution for this problem. Finally, some computational experiments solving the task assignment problem with non-uniform communication costs are shown.

Ettaouil Mohamed

2012-03-01

317

Activity Based Physics Alternative Homework Assignment: Electrical Safety 1  

Science.gov (United States)

This homework assignment is a realistic problem based on household electrical circuits. The user must make estimations of physical parameters from the properties, sizes, and shapes of common objects. Topics covered include Ohm's Law, resistivity, capacitance, alternating current, and circuits.

Redish, Edward F.; Cooney, Patrick

2009-03-19

318

Subcarrier Group Assignment for MC-CDMA Wireless Networks  

Directory of Open Access Journals (Sweden)

Full Text Available Two interference-based subcarrier group assignment strategies in dynamic resource allocation are proposed for MC-CDMA wireless systems to achieve high throughput in a multicell environment. Least interfered group assignment (LIGA selects for each session the subcarrier group on which the user receives the minimum interference, while best channel ratio group assignment (BCRGA chooses the subcarrier group with the largest channel response-to-interference ratio. Both analytical framework and simulation model are developed for evaluation of throughput distribution of the proposed schemes. An iterative approach is devised to handle the complex interdependency between multicell interference profiles in the throughput analysis. Illustrative results show significant throughput improvement offered by the interference-based assignment schemes for MC-CDMA multicell wireless systems. In particular, under low loading conditions, LIGA renders the best performance. However, as the load increases BCRGA tends to offer superior performance.

Le-Ngoc Tho

2007-01-01

319

Subcarrier Group Assignment for MC-CDMA Wireless Networks  

Directory of Open Access Journals (Sweden)

Full Text Available Two interference-based subcarrier group assignment strategies in dynamic resource allocation are proposed for MC-CDMA wireless systems to achieve high throughput in a multicell environment. Least interfered group assignment (LIGA selects for each session the subcarrier group on which the user receives the minimum interference, while best channel ratio group assignment (BCRGA chooses the subcarrier group with the largest channel response-to-interference ratio. Both analytical framework and simulation model are developed for evaluation of throughput distribution of the proposed schemes. An iterative approach is devised to handle the complex interdependency between multicell interference profiles in the throughput analysis. Illustrative results show significant throughput improvement offered by the interference-based assignment schemes for MC-CDMA multicell wireless systems. In particular, under low loading conditions, LIGA renders the best performance. However, as the load increases BCRGA tends to offer superior performance.

Tho Le-Ngoc

2007-12-01

320

47 CFR 215.2 - Assignment of responsibilities.  

Science.gov (United States)

...Telecommunication OFFICE OF SCIENCE AND TECHNOLOGY POLICY AND NATIONAL SECURITY COUNCIL FEDERAL GOVERNMENT FOCAL POINT FOR ELECTROMAGNETIC PULSE (EMP) INFORMATION § 215.2 Assignment of responsibilities. The Executive Agent, NCS, shall be...

2010-10-01

 
 
 
 
321

The influence of tutorials on the improvement of tertiary students’ academic literacy  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper describes a study which explored whether attending tutorials facilitated by senior students improves tertiary students’ marks in an academic literacy course. Data were drawn from the academic literacy test marks and essay assignment marks of students who took a year-long academic literacy course at the University of Pretoria. A statistical analysis was done to determine whether there was any improvement in the test marks and the essay assignments of students wh...

2011-01-01

322

Comparison of Memory Assignment Schemes for Switch Architectures with Shareable Parallel Memory Modules  

Directory of Open Access Journals (Sweden)

Full Text Available Switching Architectures deploying shareable parallel memory modules are quite versatile in their ability to scale to higher capacity while retaining the advantage of sharing its entire memory resource among all input and output ports. The two main classes of such architectures, namely, the Shared Multibuffer-(SMB- based switch and the Sliding-Window-(SW- based packet switch, both deploy parallel memory modules that are physically separate but logically connected. Inspite of their similarity in regards to using shareable parallel memory modules, they differ in switching control and scheduling of packets to parallel memory modules. SMB switch uses centralized control whereas the SW switch uses a decentralized control for switching operations. In this paper, we present a new memory assignment scheme for the Sliding-Window (SW switch for assigning packets to parallel memory modules that maximizes the parallel storage of packets to multiple memory modules. We compare the performance of a sliding-window switch deploying this new memory assignment scheme with that of an SMB switch architecture under conditions of identical traffic type and memory resources deployed. The simulation results show that the new memory assignment scheme for the sliding window switch maximizes parallel storage of packets input in a given switch cycle, and it does not require speed-up of memory modules. Furthermore, it provides a superior performance compared to that of the SMB switch under the constraints of fixed memory-bandwidth and memory resources.

Sanjeev Kumar

2010-01-01

323

Partial eigenvalue assignment and its stability in a time delayed system  

Science.gov (United States)

Active vibration control strategy is an effective way to control dangerous vibrations in a structure, caused by resonance and to manipulate the dynamics of vibrational response. Implementation of this strategy requires real-time computations of two feedback control matrices such that a small amount of eigenvalues of the associated quadratic matrix pencil are replaced by suitably chosen ones while the remaining large number of eigenvalues and eigenvectors remain unchanged ensuring the no spill-over. This mathematical problem is referred to as the Quadratic Partial Eigenvalue Assignment problem. The greatest challenge there is to solve the problems using the knowledge of only a small number of eigenvalues and eigenvectors that are computable using state-of-the-art techniques. This paper generalizes the earlier work on partial assignment to constant time-delay systems. Furthermore, a posterior stability analysis is carried out to identify the ranges of the time-delay that maintains the closed-loop assignment while keeping the stability of the infinite number of eigenvalues for the time-delayed systems. The practical features of the proposed methods are that it is implemented in the second-order setting itself using only those small number of eigenvalues and the eigenvectors that are to be assigned and the no spill-over is established by means of mathematical results. The results of our numerical experiments support the validity of our proposed methods.

Singh, Kumar V.; Dey, Rajeeb; Datta, Biswa N.

2014-01-01

324

The relationship between different kinds of students' errors and the knowledge required to solve mathematics word problems / A relaçăo entre diferentes tipos de erros cometidos por estudantes e o conhecimento exigido para resolver problemas-palavra  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese O principal objetivo desta pesquisa é examinar a relaçăo entre diferentes tipos de erros cometidos por estudantes e os conhecimentos necessários para resolver situaçőes-problema em Álgebra, Aritmética e Geometria. Para a análise de erros seguimos as consideraçőes de Kinfong e Holtan e para investiga [...] r o conhecimento necessário para ultrapassar os erros mobilizamos a teoria de Mayer. A metodologia de pesquisa é semi-experimental, envolvendo um teste de matemática com seis questőes e entrevistas dirigidas. Os resultados da pesquisa revelaram que os erros na soluçăo dos problemas-palavra aritméticos resultaram da falta de conhecimentos linguísticos, semânticos, estruturais e comunicativos; no que diz respeito aos problemas-palavra, os erros vinculam-se ŕ lacunas no conhecimento semântico, estrutural e intuitivo. Em relaçăo aos problemas-palavra algébricos os erros devem-se a lacunas quanto ŕs operaçőes matemáticas. Em síntese, os resultados mostram que a maior deficięncia dos alunos relaciona-se a lacunas relativas ao conhecimento semântico, estrutural e comunicativo. Abstract in english The main objective of this research is to examine the relationship between different kinds of errors and the knowledge required to solve word problems in Arithmetic, Algebra and Geometry. Kinfong's and Holtan's framework supports the analysis of the errors, and Mayer's theory was implemented to unde [...] rstand the necessary knowledge for solving math word problems. The research methodology follows a semi-experimental method. Research tools comprise both a descriptive math test and a directed interview. The research findings revealed that students' errors when solving arithmetic word problems result from the lack of linguistic, semantic, structural and communicational knowledge; when solving the geometric word problems, the lack of semantic, intuition and structural knowledge were the cause of the students' errors. Regarding algebra word problems, miscalculation was the reason for the higher error rate. Results show that the highest deficiency is mainly related to the lack of semantic, structural and communicational knowledge.

Majid, Haghverdi; Ahmad Shahvarani, Semnani; Mohammad, Seifi.

325

Assigning strains to bacterial species via the internet  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract Background Methods for assigning strains to bacterial species are cumbersome and no longer fit for purpose. The concatenated sequences of multiple house-keeping genes have been shown to be able to define and circumscribe bacterial species as sequence clusters. The advantage of this approach (multilocus sequence analysis; MLSA) is that, for any group of related species, a strain database can be produced and combined with software that allows query strains to be assign...

2009-01-01

326

A mixed methods investigation on British expatriate assignment success  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Psychological research on expatriation has been dominated by North American researchers, and expatriation models have been tested using predominantly US employee samples. This dominance may bias our understanding of expatriation and influence the practice of expatriate assignments within organisations. This thesis addresses the need for European expatriation research, and investigates expatriate assignment success from a British employee perspective. A sequential mixed-methods design was used...

Hardy, Claire

2011-01-01

327

A parametric visualization software for the assignment problem  

Directory of Open Access Journals (Sweden)

Full Text Available In this paper we present a parametric visualization software used to assist the teaching of the Network Primal Simplex Algorithm for the assignment problem (AP. The assignment problem is a special case of the balanced transportation problem. The main functions of the algorithm and design techniques are also presented. Through this process, we aim to underline the importance and necessity of using such educational methods in order to improve the teaching of Computer Algorithms.

Papamanthou Charalampos

2005-01-01

328

A parametric visualization software for the assignment problem  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In this paper we present a parametric visualization software used to assist the teaching of the Network Primal Simplex Algorithm for the assignment problem (AP). The assignment problem is a special case of the balanced transportation problem. The main functions of the algorithm and design techniques are also presented. Through this process, we aim to underline the importance and necessity of using such educational methods in order to improve the teaching of Computer Algorithms.

Papamanthou Charalampos; Paparrizos Konstantinos; Samaras Nikolaos

2005-01-01

329

Solving the quadratic assignment problem by neural networks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The Quadratic Assignment Problem (QAP) was introduced by Koopmans and Beckmann in 1957 as a mathematical model for the location of a set of indivisible economical activities. This problem consists of allocating a set of facilities to a set of locations, taking into account the costs of the distance and flow between facilities, and the cost of the facility’s installation in a certain location. Therefore, the problem is to assign all the facilities to the locations with the objective of minim...

Domi?nguez, Enrique

2013-01-01

330

An Efficient Heuristic Algorithm for Wavelength Assignment in WDM Network  

Directory of Open Access Journals (Sweden)

Full Text Available In this study, a new linear formulation for wavelength assignment is presented. The proposed a heuristic-based algorithm allows to solve wavelength assignment problem in optical network with less computational effort compared with Integer Linear Programming (ILP approaches with large size of network. It is found that the proposed heuristic can yield to stable, efficient and reliable results with increasing traffic demands.

S.C. Tan

2008-01-01

331

Carrier-sense multiple access with fixed retransmission assignment  

Science.gov (United States)

A fixed assignment retransmission scheme with carrier-sensing capability is developed. The design and operation of the algorithm are described. The scheme is analyzed using a Markov model. The average throughput is examined in terms of number of backlogged stations and tranmission probability. It is observed that in heavy traffic the fixed assignment retransmission scheme has a lower delay than that of a CSMA with collision detection scheme.

Sarraf, Mohsen; Li, Victor O. K.

332

Airport Gate Assignment A Hybrid Model and Implementation  

Digital Repository Infrastructure Vision for European Research (DRIVER)

With the rapid development of airlines, airports today become much busier and more complicated than previous days. During airlines daily operations, assigning the available gates to the arriving aircrafts based on the fixed schedule is a very important issue, which motivates researchers to study and solve Airport Gate Assignment Problems (AGAP) with all kinds of state-of-the-art combinatorial optimization techniques. In this paper, we study the AGAP and propose a novel hybri...

Li, Chendong

2009-01-01

333

Locomotive assignment problem with train precedence using genetic algorithm  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper aims to study the locomotive assignment problem which is very important for railway companies, in view of high cost of operating locomotives. This problem is to determine the minimum cost assignment of homogeneous locomotives located in some central depots to a set of pre-scheduled trains in order to provide sufficient power to pull the trains from their origins to their destinations. These trains have different degrees of priority for servicing, and the high class of trains should...

Noori, Siamak; Ghannadpour, Seyed

2012-01-01

334

PARETO OPTIMAL SOLUTIONS FOR MULTI-OBJECTIVE GENERALIZED ASSIGNMENT PROBLEM  

Directory of Open Access Journals (Sweden)

Full Text Available

ENGLISH ABSTRACT: The Multi-Objective Generalized Assignment Problem (MGAP with two objectives, where one objective is linear and the other one is non-linear, has been considered, with the constraints that a job is assigned to only one worker – though he may be assigned more than one job, depending upon the time available to him. An algorithm is proposed to find the set of Pareto optimal solutions of the problem, determining assignments of jobs to workers with two objectives without setting priorities for them. The two objectives are to minimise the total cost of the assignment and to reduce the time taken to complete all the jobs.

AFRIKAANSE OPSOMMING: ‘n Multi-doelwit veralgemeende toekenningsprobleem (“multi-objective generalised assignment problem – MGAP” met twee doelwitte, waar die een lineęr en die ander nielineęr is nie, word bestudeer, met die randvoorwaarde dat ‘n taak slegs toegedeel word aan een werker – alhoewel meer as een taak aan hom toegedeel kan word sou die tyd beskikbaar wees. ‘n Algoritme word voorgestel om die stel Pareto-optimale oplossings te vind wat die taaktoedelings aan werkers onderhewig aan die twee doelwitte doen sonder dat prioriteite toegeken word. Die twee doelwitte is om die totale koste van die opdrag te minimiseer en om die tyd te verminder om al die take te voltooi.

S. Prakash

2012-01-01

335

Automated protein backbone assignment using the projection-decomposition approach  

Energy Technology Data Exchange (ETDEWEB)

Spectral projection experiments by NMR in conjunction with decomposition analysis have been previously introduced for the backbone assignment of proteins; various pulse sequences as well as the behaviour with low signal-to-noise or chemical shift degeneracy have been illustrated. As a guide for routine applications of this combined tool, we provide here a systematic analysis on different types of proteins using welldefined run-time parameters. As a second result of this study, the backbone assignment module SHABBA was extensively rewritten and improved. Calculations on ubiquitin yielded again fully correct and nearly complete backbone and CH{beta} assignments. For the 128 residue long azurin, missing assignments mostly affect H{alpha} and H{beta}. Among the remaining backbone (plus C{beta}) nuclei 97.5% could be assigned with 1.0% differences to a reference. Finally, the new SHABBA algorithm was applied to projections recorded for a yeast histone protein domain at room temperature, where the protein is subject to partial unfolding: this leads to unobservable resonances (about a dozen missing signals in a normal 15N-HSQC) and extensive degeneracy among the resonances. From the clearly observable residues, 97.5% of the backbone and CH{beta}resonances could be assigned, of which only 0.8 % showed differences to published shifts. An additional study on the protein MMP20, which exhibits spectral difficulties to an even larger extent, explores the limitations of the approach.

Fredriksson, Jonas [University of Gothenburg, Department of Chemistry and Molecular Biology (Sweden); Bermel, Wolfgang [Bruker BioSpin GmbH (Germany); Staykova, Doroteya K.; Billeter, Martin, E-mail: martin.billeter@chem.gu.se [University of Gothenburg, Department of Chemistry and Molecular Biology (Sweden)

2012-09-15

336

Neptune's Discovery: Le Verrier, Adams, and the Assignment of Credit  

Science.gov (United States)

As one of the most significant achievements of 19th century astronomy, the discovery of Neptune has been the subject of a vast literature. A large part of this literature--beginning with the period immediately after the optical discovery in Berlin--has been the obsession with assigning credit to the two men who attempted to calculate the planet's position (and initially this played out against the international rivalry between France and England). Le Verrier and Adams occupied much different positions in the Scientific Establishments of their respective countries; had markedly different personalities; and approached the investigation using different methods. A psychiatrist and historian of astronomy tries to provide some new contexts to the familiar story of the discovery of Neptune, and argues that the personalities of these two men played crucial roles in their approaches to the problem they set themselves and the way others reacted to their stimuli. Adams had features of high-functioning autism, while Le Verrier's domineering, obsessive, orderly personality--though it allowed him to be immensely productive--eventually led to serious difficulties with his peers (and an outright revolt). Though it took extraordinary smarts to calculate the position of Neptune, the discovery required social skills that these men lacked--and thus the process to discovery was more bumbling and adventitious than it might have been. The discovery of Neptune occurred at a moment when astronomy was changing from that of heroic individuals to team collaborations involving multiple experts, and remains an object lesson in the sociological aspects of scientific endeavor.

Sheehan, William

2011-01-01

337

Early Identification of Student Performance and Effort Using an Online Homework System: A Pilot Study  

Science.gov (United States)

Two distinct student groups, in terms of academic performance, were identified early in the semester as either being under-performing students or over-performing students using an online homework system. The students who are identified as under-performing received, on average, lower grades than their fellow students but spent more time completing the homework assignments. These students are great candidates for targeted advertisement of student resources such as tutoring services. The students who are identified in the over-performing student population received higher grades than their fellow students, but spent less time completing the homework assignments. These students are great candidates for honors programs, independent research projects, and peer-tutoring programs. Incorporating these evaluation criteria to online homework systems will allow instructors to quickly identify students in these academic student populations.

Perdian, David C.

2012-10-01

338

In the Mood for Risk? A Random-Assignment Experiment Addressing the Effects of Moods on Risk Preferences  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Recent discussions in decision sciences and behavioral economics stress the potential impact of affect on decision outcomes. In the present study, we conducted random-assignment experiments (N = 253) to investigate whether affect can cause temporary fluctuations in risk preferences. In particular, we employed film clips to vary the valence (positive / negative) and arousal level (low / high) of the affective states of student participants; following this, we elicited and observed risk prefere...

Treffers, T.; Koellinger, Ph D.; Picot, A. O.

2012-01-01

339

Causal effects of single-sex schools on college entrance exams and college attendance: random assignment in Seoul high schools.  

Science.gov (United States)

Despite the voluminous literature on the potentials of single-sex schools, there is no consensus on the effects of single-sex schools because of student selection of school types. We exploit a unique feature of schooling in Seoul-the random assignment of students into single-sex versus coeducational high schools-to assess causal effects of single-sex schools on college entrance exam scores and college attendance. Our validation of the random assignment shows comparable socioeconomic backgrounds and prior academic achievement of students attending single-sex schools and coeducational schools, which increases the credibility of our causal estimates of single-sex school effects. The three-level hierarchical model shows that attending all-boys schools or all-girls schools, rather than coeducational schools, is significantly associated with higher average scores on Korean and English test scores. Applying the school district fixed-effects models, we find that single-sex schools produce a higher percentage of graduates who attended four-year colleges and a lower percentage of graduates who attended two-year junior colleges than do coeducational schools. The positive effects of single-sex schools remain substantial, even after we take into account various school-level variables, such as teacher quality, the student-teacher ratio, the proportion of students receiving lunch support, and whether the schools are public or private. PMID:23073751

Park, Hyunjoon; Behrman, Jere R; Choi, Jaesung

2013-04-01

340

Annual Student Assessment Report.  

Science.gov (United States)

This document presents required summaries of detailed student assessment reports submitted by the following Oklahoma institutions: University of Oklahoma, Oklahoma State University, University of Central Oklahoma, East Central University, Northeastern State University, Northwestern Oklahoma State University, Southeastern Oklahoma State University,…

Oklahoma State Regents for Higher Education, Oklahoma City.

 
 
 
 
341

"GET IT! WRITE" - DEVELOPING AN ONLINE RESOURCE TO AID STUDENT ACADEMIC WRITING: A JOURNEY OF DISCOVERY  

Directory of Open Access Journals (Sweden)

Full Text Available The central focus of this paper is the authors'experiences developing an online program to assist students improve their academic writing and referencing skills in response to increasingly poor levels of student expression and quality of submitted work. The ten modules provide students with access to theory on the process and skills required in preparing tertiary level assignments and then the opportunity to practice these skills. Sociocultural and constructivist theory underpin the structure of the online program. As writers and developers familiar with academic processes we engaged with a discourse with each other and more capable others to learn new skills particularly with respect to WebCT. This was a complex process characterised by role switching so that there was not an ongoing distinct demarcation of novice and expert.

Marilyn Kell

2007-11-01

342

A High Throughput Single Nucleotide Polymorphism Multiplex Assay for Parentage Assignment in New Zealand Sheep  

Science.gov (United States)

Accurate pedigree information is critical to animal breeding systems to ensure the highest rate of genetic gain and management of inbreeding. The abundance of available genomic data, together with development of high throughput genotyping platforms, means that single nucleotide polymorphisms (SNPs) are now the DNA marker of choice for genomic selection studies. Furthermore the superior qualities of SNPs compared to microsatellite markers allows for standardization between laboratories; a property that is crucial for developing an international set of markers for traceability studies. The objective of this study was to develop a high throughput SNP assay for use in the New Zealand sheep industry that gives accurate pedigree assignment and will allow a reduction in breeder input over lambing. This required two phases of development- firstly, a method of extracting quality DNA from ear-punch tissue performed in a high throughput cost efficient manner and secondly a SNP assay that has the ability to assign paternity to progeny resulting from mob mating. A likelihood based approach to infer paternity was used where sires with the highest LOD score (log of the ratio of the likelihood given parentage to likelihood given non-parentage) are assigned. An 84 “parentage SNP panel” was developed that assigned, on average, 99% of progeny to a sire in a problem where there were 3,000 progeny from 120 mob mated sires that included numerous half sib sires. In only 6% of those cases was there another sire with at least a 0.02 probability of paternity. Furthermore dam information (either recorded, or by genotyping possible dams) was absent, highlighting the SNP test’s suitability for paternity testing. Utilization of this parentage SNP assay will allow implementation of progeny testing into large commercial farms where the improved accuracy of sire assignment and genetic evaluations will increase genetic gain in the sheep industry.

Clarke, Shannon M.; Henry, Hannah M.; Dodds, Ken G.; Jowett, Timothy W. D.; Manley, Tim R.; Anderson, Rayna M.; McEwan, John C.

2014-01-01

343

A high throughput single nucleotide polymorphism multiplex assay for parentage assignment in New Zealand sheep.  

Science.gov (United States)

Accurate pedigree information is critical to animal breeding systems to ensure the highest rate of genetic gain and management of inbreeding. The abundance of available genomic data, together with development of high throughput genotyping platforms, means that single nucleotide polymorphisms (SNPs) are now the DNA marker of choice for genomic selection studies. Furthermore the superior qualities of SNPs compared to microsatellite markers allows for standardization between laboratories; a property that is crucial for developing an international set of markers for traceability studies. The objective of this study was to develop a high throughput SNP assay for use in the New Zealand sheep industry that gives accurate pedigree assignment and will allow a reduction in breeder input over lambing. This required two phases of development--firstly, a method of extracting quality DNA from ear-punch tissue performed in a high throughput cost efficient manner and secondly a SNP assay that has the ability to assign paternity to progeny resulting from mob mating. A likelihood based approach to infer paternity was used where sires with the highest LOD score (log of the ratio of the likelihood given parentage to likelihood given non-parentage) are assigned. An 84 "parentage SNP panel" was developed that assigned, on average, 99% of progeny to a sire in a problem where there were 3,000 progeny from 120 mob mated sires that included numerous half sib sires. In only 6% of those cases was there another sire with at least a 0.02 probability of paternity. Furthermore dam information (either recorded, or by genotyping possible dams) was absent, highlighting the SNP test's suitability for paternity testing. Utilization of this parentage SNP assay will allow implementation of progeny testing into large commercial farms where the improved accuracy of sire assignment and genetic evaluations will increase genetic gain in the sheep industry. PMID:24740141

Clarke, Shannon M; Henry, Hannah M; Dodds, Ken G; Jowett, Timothy W D; Manley, Tim R; Anderson, Rayna M; McEwan, John C

2014-01-01

344

Reading Questions: Encouraging Students to Read the Text Before Coming to Class  

Science.gov (United States)

College science teachers know that students get the most out of class if they have completed the assigned reading. To reinforce this expectation, we ask our introductory physics students to submit a question they had about the reading. In this paper we describe the rationale and logistics of this assignment.

Henderson, Charles R.; Rosenthal, Alvin

2006-08-22

345

Preparing Computing Students for Culturally Diverse E-Mediated IT Projects  

Science.gov (United States)

In this paper we present an account of an undergraduate team-based assignment designed to facilitate, exhibit and record team-working skills in an e-mediated environment. By linking the student feedback received to Hofstede's classic model of cultural dimensions we aim to show the assignment's suitability in revealing the student's multi-cultural…

Conrad, Marc; French, Tim; Maple, Carsten; Zhang, Sijing

2006-01-01

346

Advanced technology requirements for large space structures. Part 5: Atlas program requirements  

Science.gov (United States)

The results of a special study which identifies and assigns priorities to technology requirements needed to accomplish a particular scenario of future large area space systems are described. Proposed future systems analyzed for technology requirements included large Electronic Mail, Microwave Radiometer, and Radar Surveillance Satellites. Twenty technology areas were identified as requirements to develop the proposed space systems.

Katz, E.; Lillenas, A. N.; Broddy, J. A.

1977-01-01

347

Professional career teachers in context of the disciplined behavior of secondary school students in Ukraine (II half of XIX - beginning of XX century  

Directory of Open Access Journals (Sweden)

Full Text Available The features of professional activity of teachers of domestic educational establishments of school type are considered. The basic functions of teacher are described. Going is rotined near forming of discipline of students according to public requirements. Basic work of teacher assignments are certain on realization of educate aims of school. It is marked that professional activity of teacher in the direction of forming of the disciplined conduct consisted of realization of gnostic and organizational functions. It provided for: forming of the system of professional knowledge of teacher; ability to organize educational and outside educational activity of students.

Samarina S.I.

2010-10-01

348

Impact of Journaling on Students’ Self-Efficacy and Locus of Control  

Directory of Open Access Journals (Sweden)

Full Text Available While considerable research has examined the academic and cognitive value of journaling, little has examined the psychological impact of journaling on the personal development of college students. Research on cognitive-behavioral therapy indicates that journaling can have a positive impact on individuals’ self-growth and intrapersonal characteristics. The purpose of this study is to examine the impact of classroom-based journaling on students’ self-efficacy and locus of control. Students in two undergraduate courses were required to complete weekly journal assignments; one class received targeted information on cognitive-behavioral therapy (CBT and one class did not. Students completed pre-, mid-, and post-course assessments on self-efficacy, locus of control, and learning. Results revealed that self-efficacy scores for both groups significantly improved after the early journaling assignments; however, there were no differences between those who received direct CBT instruction and those who did not. These findings indicate that journaling may have important psychological benefits above and beyond its expected academic and cognitive outcomes.

Krista K. Fritson

2008-08-01

349

Measuring University students' understanding of the greenhouse effect - a comparison of multiple-choice, short answer and concept sketch assessment tools with respect to students' mental models  

Science.gov (United States)

The greenhouse effect comes up in most discussions about climate and is a key concept related to climate change. Existing studies have shown that students and adults alike lack a detailed understanding of this important concept or might hold misconceptions. We studied the effectiveness of different interventions on University-level students' understanding of the greenhouse effect. Introductory level science students were tested for their pre-knowledge of the greenhouse effect using validated multiple-choice questions, short answers and concept sketches. All students participated in a common lesson about the greenhouse effect and were then randomly assigned to one of two lab groups. One group explored an existing simulation about the greenhouse effect (PhET-lesson) and the other group worked with absorption spectra of different greenhouse gases (Data-lesson) to deepen the understanding of the greenhouse effect. All students completed the same assessment including multiple choice, short answers and concept sketches after participation in their lab lesson. 164 students completed all the assessments, 76 completed the PhET lesson and 77 completed the data lesson. 11 students missed the contrasting lesson. In this presentation we show the comparison between the multiple-choice questions, short answer questions and the concept sketches of students. We explore how well each of these assessment types represents student's knowledge. We also identify items that are indicators of the level of understanding of the greenhouse effect as measured in correspondence of student answers to an expert mental model and expert responses. Preliminary data analysis shows that student who produce concept sketch drawings that come close to expert drawings also choose correct multiple-choice answers. However, correct multiple-choice answers are not necessarily an indicator that a student produces an expert-like correlating concept sketch items. Multiple-choice questions that require detailed knowledge of the greenhouse effect (e.g. direction of re-emission of infrared energy from greenhouse gas) are significantly more likely to be answered correctly by students who also produce expert-like concept sketch items than by students who don't include this aspect in their sketch and don't answer the multiple choice questions correctly. This difference is not as apparent for less technical multiple-choice questions (e.g. type of radiation emitted by Sun). Our findings explore the formation of student's mental models throughout different interventions and how well the different assessment techniques used in this study represent the student understanding of the overall concept.

Gold, A. U.; Harris, S. E.

2013-12-01

350

Student research activities in the Technology Assessments Section of the Health and Safety Research Division, Summer 1980  

International Nuclear Information System (INIS)

Reports summarizing activities of students assigned to the Technology Assessments Section of the Health and Safety Research Division for the summer 1980 are presented. Unless indicated otherwise, each report was written by the student whose work is being described. For each student, the student's supervisor, the name of the program under which the student was brought to ORNL, the academic level of the student, and the name of the ORNL project to which the student was assigned are tabulated. The reports are presented in alphabetical order of the students' last names

1981-01-01

351

GPU-based SoftAssign for Maximizing Image Utilization in Photomosaics  

Directory of Open Access Journals (Sweden)

Full Text Available Photomosaic generation is a popular non-photorealistic rendering technique, where a single image is assembled from several smaller ones. Visual responses change depending on the proximity to the photomosaic, leading to many creative prospects for publicity and art. Synthesizing photomosaics typically requires very large image databases in order to produce pleasing results. Moreover, repetitions are allowed to occur which may locally bias the mosaic. This paper provides alternatives to prevent repetitions while still being robust enough to work with coarse image subsets. Three approaches were considered for the matching stage of photomosaics: a greedy-based procedural algorithm, simulated annealing and SoftAssign. It was found that the latter delivers adequate arrangements in cases where only a restricted number of images is available. This paper introduces a novel GPU-accelerated SoftAssign implementation that outperforms an optimized CPU implementation by a factor of 60 times in the tested hardware.

Toru Tamaki

2011-07-01

352

Assessor or Assessee: How Student Learning Improves by Giving and Receiving Peer Feedback  

Science.gov (United States)

This study investigated the relationship between the quality of peer assessment and the quality of student projects in a technology application course for teacher education students. Forty-three undergraduate student participants completed the assigned projects. During the peer assessment process, students first anonymously rated and commented on…

Li, Lan; Liu, Xiongyi; Steckelberg, Allen L.

2010-01-01

353

Relations between Faculty Use of Online Academic Resources and Student Class Attendance  

Science.gov (United States)

We investigated connections between faculty use of online resources and student class attendance. Of particular interest was whether online submission of course assignments is detrimental to attendance. Students and faculty at a small, liberal arts college completed surveys about student attendance patterns, student reasons for non-attendance,…

Kinlaw, C. Ryan; Dunlap, Linda L.; D'Angelo, Jeffrey A.

2012-01-01

354

Samples of Students' Writing from the English 30 Diploma Examination, June 1988 Edition.  

Science.gov (United States)

This booklet provides samples of student writing that exemplify the standards that governed the scoring of student essays on the June 1988 English 30 Diploma Examination. Both major and minor writing assignments for seven students are provided, with examples of the full range of student writing. Commentaries accompanying the essays highlight…

Alberta Dept. of Education, Edmonton. Student Evaluation and Records Branch.

355

Samples of Students' Writing from the Social Studies 30 Diploma Examination, June 1988.  

Science.gov (United States)

This booklet provides samples of student writing that exemplify the standards that governed the scoring of student essays on the June 1988 Social Studies 30 Diploma Examination. Copies of the two essay assignments are provided, and five student essays are included for both topics, covering the full range of student writing. Commentaries…

Alberta Dept. of Education, Edmonton. Student Evaluation and Records Branch.

356

Stress assignment in reading Italian: Friendship outweighs dominance.  

Science.gov (United States)

Stress assignment to polysyllabic words is the only aspect of the pronunciation of written Italian that cannot be predicted by rule. It could be a function of stress dominance in the language or of stress neighborhood (i.e., the number of words sharing an ending and a stress pattern). In two experiments, we investigated stress assignment in Italian adult and, most importantly, young readers. Word frequency and number of stress friends influenced reading times and accuracy, outweighing any effect of stress dominance. In the presence of a majority of stress friends, the reading of low-frequency words was only affected by stress neighborhood. These effects were the same in fourth graders and adult readers. We argue that distributional information based on the number of stress friends-rather than stress dominance-is the most effective factor in assigning stress to words in reading. PMID:24165942

Burani, Cristina; Paizi, Despina; Sulpizio, Simone

2014-05-01

357

Assignment of phycocyanobilin in HMPT using triple resonance experiments.  

Science.gov (United States)

A complete assignment of all resonances of a small organic molecule is a prerequisite for a structure determination using NMR spectroscopy. This is conventionally obtained using a well-established strategy based on COSY, HMQC and HMBC spectra. In case of phycocyanobilin (PCB) in HMPT this strategy was unsuccessful due to the symmetry of the molecule and extreme signal overlap. Since (13) C and (15) N labeled material was available, an alternative strategy for resonance assignment was used. Triple resonance experiments derived from experiments conventionally performed for proteins are sensitive and easy to analyze. Their application led to a complete and unambiguous assignment using three types of experiments. Copyright © 2011 John Wiley & Sons, Ltd. PMID:21815209

Röben, Marco; Schmieder, Peter

2011-08-01

358

Baryon and lepton number assignment in E6 models  

International Nuclear Information System (INIS)

In E6 models there are new particles whose baryon number is not uniquely assigned. We point out that the baryon and lepton number assignment to these particles can change the baryogenesis scenario significantly. We consider a left-right symmetric extension of the standard model in which the (B-L) quantum number is gauged. The identification of (B-L) with a generator of E6 is used to define the baryon and lepton numbers for the exotic particles in a way that the electroweak baryon and lepton number anomaly corresponding to the SU(2)L group vanishes; i.e., there is no nonperturbative baryon or lepton number violation during the electroweak phase transition. We study some consequences of the new assignment

1995-08-01

359

Airport Gate Assignment A Hybrid Model and Implementation  

CERN Document Server

With the rapid development of airlines, airports today become much busier and more complicated than previous days. During airlines daily operations, assigning the available gates to the arriving aircrafts based on the fixed schedule is a very important issue, which motivates researchers to study and solve Airport Gate Assignment Problems (AGAP) with all kinds of state-of-the-art combinatorial optimization techniques. In this paper, we study the AGAP and propose a novel hybrid mathematical model based on the method of constraint programming and 0 - 1 mixed-integer programming. With the objective to minimize the number of gate conflicts of any two adjacent aircrafts assigned to the same gate, we build a mathematical model with logical constraints and the binary constraints. For practical considerations, the potential objective of the model is also to minimize the number of gates that airlines must lease or purchase in order to run their business smoothly. We implement the model in the Optimization Programming L...

Li, Chendong

2009-01-01

360

GANA--a genetic algorithm for NMR backbone resonance assignment  

Science.gov (United States)

NMR data from different experiments often contain errors; thus, automated backbone resonance assignment is a very challenging issue. In this paper, we present a method called GANA that uses a genetic algorithm to automatically perform backbone resonance assignment with a high degree of precision and recall. Precision is the number of correctly assigned residues divided by the number of assigned residues, and recall is the number of correctly assigned residues divided by the number of residues with known human curated answers. GANA takes spin systems as input data and uses two data structures, candidate lists and adjacency lists, to assign the spin systems to each amino acid of a target protein. Using GANA, almost all spin systems can be mapped correctly onto a target protein, even if the data are noisy. We use the BioMagResBank (BMRB) dataset (901 proteins) to test the performance of GANA. To evaluate the robustness of GANA, we generate four additional datasets from the BMRB dataset to simulate data errors of false positives, false negatives and linking errors. We also use a combination of these three error types to examine the fault tolerance of our method. The average precision rates of GANA on BMRB and the four simulated test cases are 99.61, 99.55, 99.34, 99.35 and 98.60%, respectively. The average recall rates of GANA on BMRB and the four simulated test cases are 99.26, 99.19, 98.85, 98.87 and 97.78%, respectively. We also test GANA on two real wet-lab datasets, hbSBD and hbLBD. The precision and recall rates of GANA on hbSBD are 95.12 and 92.86%, respectively, and those of hbLBD are 100 and 97.40%, respectively.

Lin, Hsin-Nan; Wu, Kun-Pin; Chang, Jia-Ming; Sung, Ting-Yi; Hsu, Wen-Lian

2005-01-01

 
 
 
 
361

Configuration assignment to ground state rotational band of 184Au  

International Nuclear Information System (INIS)

Recently, the rotational level scheme of 184Au has been investigated by means of in-beam ? -ray spectroscopy techniques. On the basis of a comparison of the measured and calculated B(M1)/B(E2) ratios, Li et al. suggested a highly mixed character for the ground state two quasiparticle (2qp) rotational band of 184Au. In this paper, the configuration assignment to ground state band of 184Au is revisited in terms of Two Quasi-Particle Rotor Model (TQPRM) calculations. Our results further strengthen the earlier proposed configuration assignments to this band

2013-12-01

362

A Survey of Algorithms for Paper-reviewer Assignment Problem  

Directory of Open Access Journals (Sweden)

Full Text Available This paper analyzes some details of artificial in-telligence algorithms to paper-reviewer assignment problem. In particular, the study on most common algorithms like genetic algorithm (GA, ant colony optimization (ACO and tabu-search (TS is made and the performance of these algorithms in paper-reviewer assignment problem is tested. Moreover, two hybrid methods that efficiently combine the above-mentioned algorithms are proposed: the ACO-GA and GA-TS algorithms. To measure the performance of these algorithms, extensive computational experiments are conducted. Evaluation using different data sets shows that the proposed algorithms are effective and achieve good results.

Kolasa Tomasz

2011-01-01

363

Studies on the stereochemical assignment of 3-acylidene 2-oxindoles.  

Science.gov (United States)

The designation of E/Z-geometrical isomers in 3-acylidene 2-oxindoles by NMR spectroscopy can lead to erroneous assignment of alkene stereochemistry because of the narrow chemical shift range observed over a large series of analogues. In contrast, UV-Vis spectroscopy offers a convenient and more reliable method for alkene stereochemical assignment. A combination of X-ray crystallography and theoretical studies shows that the observed differences in UV-Vis spectroscopic behaviour relate to the twisted conformation of the Z-isomers that provides reduced conjugation and weaker hypsochromic (blue-shifted) absorbances relative to those of the E-isomers. PMID:24722672

Edeson, Steven J; Jiang, Julong; Swanson, Stephen; Procopiou, Panayiotis A; Adams, Harry; Meijer, Anthony J H M; Harrity, Joseph P A

2014-05-28

364

A new probabilistic transformation of belief mass assignment  

CERN Document Server

In this paper, we propose in Dezert-Smarandache Theory (DSmT) framework, a new probabilistic transformation, called DSmP, in order to build a subjective probability measure from any basic belief assignment defined on any model of the frame of discernment. Several examples are given to show how the DSmP transformation works and we compare it to main existing transformations proposed in the literature so far. We show the advantages of DSmP over classical transformations in term of Probabilistic Information Content (PIC). The direct extension of this transformation for dealing with qualitative belief assignments is also presented.

Dezert, Jean

2008-01-01

365

A Strategy for Assigning New Concepts in the MEDLINE Database  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The MeSH® indexing done in MEDLINE® is engineered by humans. Humans define the MeSH concepts and human indexers assign MeSH terms to MEDLINE records. Methods have been designed in an attempt to assign MeSH terms to MEDLINE documents automatically with some success. Methods have also been designed to locate useful phrases as potential concepts for indexing. However, little work has been done on the problem of how one might automatically index with the concepts represented b...

Kim, Won; Wilbur, W. John

2005-01-01

366

Semi-Infinite Assignment Problems and Related Games  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In 1972 Shapley and Shubik introduced assignment games associated to finite assignment problems in which two types of agents were involved and they proved that these games have a non-empty core. In this paper we look at the situation where the set of one type is infinite and investigatewhen the core of the associated game is non-empty. Two infinite programming problems arise here, which we tackle with the aid of finite approximations. We prove that there is no duality gap and we show that the...

Llorca, N.; Tijs, S. H.; Timmer, J. B.

1999-01-01

367

Study on Optimization Model and Algorithm of Flight Assignment  

Directory of Open Access Journals (Sweden)

Full Text Available Considering the features of domestic flight assignment which is vulnerable to the effects of changes in market demand, this study tries to establish the model which aims at balanced utility of aircraft, making the flying time is as close as possible to the expected time of aircraft. In order to solve problem of the model, it designs an expert rule-based heuristic algorithm, which can achieve optimized flight assignment quickly. Finally, it adopts the actual flights data of airline and analyzing the examples, compared with the ant colony algorithm. It can further illustrate the model and algorithm.

Jia Baohui

2013-01-01

368

CERN summer experience benefits US students  

CERN Document Server

Northeastern University's programme of research experience for US undergraduates at CERN is five years old. While at CERN, the US summer students work with an assigned research group, supervised by a physicist who works with them and assigns them various tasks, allowing them to see what work as a particle physicist is like. Students perform research, take measurements, write computer programs, papers and reports, learn to use specialized software, build and test equipment, and inevitably do manual work. In short, they are expected to cover the entire range of activities that makes up experimental particle physics.

Harvey, S

2003-01-01

369

Teaching Students How to Study: A Workshop on Information Processing and Self-Testing Helps Students Learn  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We implemented a “how to study” workshop for small groups of students (6–12) for N = 93 consenting students, randomly assigned from a large introductory biology class. The goal of this workshop was to teach students self-regulating techniques with visualization-based exercises as a foundation for learning and critical thinking in two areas: information processing and self-testing. During the workshop, students worked individually or in groups and received immediate feedback on their pro...

Stanger-hall, Kathrin F.; Shockley, Floyd W.; Wilson, Rachel E.

2011-01-01

370

The Influence of Consistent Assignment on Nursing Home Deficiency Citations  

Science.gov (United States)

Objective: The association of consistent assignment of nurse aides (NAs) with quality of care and quality of life of nursing home residents is examined (using 5 groups of deficiency citations). Methods: Data used came from a survey of nursing home administrators, the Online Survey Certification and Reporting data, and the Area Resource File. The…

Castle, Nicholas G.

2011-01-01

371

Optimal assignment methods for ligand-based virtual screening  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Ligand-based virtual screening experiments are an important task in the early drug discovery stage. An ambitious aim in each experiment is to disclose active structures based on new scaffolds. To perform these "scaffold-hoppings" for individual problems and targets, a plethora of different similarity methods based on diverse techniques were published in the last years. The optimal assignment approach on molecular graphs, a successful method in the field of quantitative structure-activity relationships, has not been tested as a ligand-based virtual screening method so far. Results We evaluated two already published and two new optimal assignment methods on various data sets. To emphasize the "scaffold-hopping" ability, we used the information of chemotype clustering analyses in our evaluation metrics. Comparisons with literature results show an improved early recognition performance and comparable results over the complete data set. A new method based on two different assignment steps shows an increased "scaffold-hopping" behavior together with a good early recognition performance. Conclusion The presented methods show a good combination of chemotype discovery and enrichment of active structures. Additionally, the optimal assignment on molecular graphs has the advantage to investigate and interpret the mappings, allowing precise modifications of internal parameters of the similarity measure for specific targets. All methods have low computation times which make them applicable to screen large data sets.

Jahn Andreas

2009-08-01

372

Challenges and Dilemmas in Implementing Random Assignment in Educational Research  

Science.gov (United States)

In the contentious debate over the use of randomized clinical trials (RCTs) in education research, little attention has been given to how methodological issues arise and/or are resolved in the implementation of random assignment. Following a review of the methodological-theoretical literature on RCTs and alternative research designs, this article…

Ong-Dean, Colin; Hofstetter, Carolyn Huie; Strick, Betsy R.

2011-01-01

373

The Complexity of Approximately Counting Stable Roommate Assignments  

CERN Document Server

We investigate the complexity of approximately counting stable roommate assignments in two models: (i) the $k$-attribute model, in which the preference lists are determined by dot products of "preference vectors" with "attribute vectors" and (ii) the $k$-Euclidean model, in which the preference lists are determined by the closeness of the "positions" of the people to their "preferred positions". Exactly counting the number of assignments is #P-complete, since Irving and Leather demonstrated #P-completeness for the special case of the stable marriage problem. We show that counting the number of stable roommate assignments in the $k$-attribute model ($k \\geq 4$) and the $3$-Euclidean model($k \\geq 3$) is interreducible, in an approximation-preserving sense, with counting independent sets (of all sizes) (#IS) in a graph, or counting the number of satisfying assignments of a Boolean formula (#SAT). This means that there can be no FPRAS for any of these problems unless NP=RP. As a consequence, we infer that there ...

Chebolu, Prasad; Martin, Russell

2010-01-01

374

Two Reformulations for the Dynamic Quadratic Assignment Problem  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Problem statement: The Dynamic Quadratic Assignment Problem (DQAP), an NP-hard problem, is outlined and reformulated in two alternative models: Linearized model and logic-based model. Approach: The solution methods for both models based on combinatorial methods (Benders? Decomposition and Approximate Dynamic Programming) and constraint logic programming, respectively, are proposed. Results: Proofs of model equivalence and solution method...

2010-01-01

375

Asymmetric synthesis of (+)-geranyllinaloisocyanide: assignment of absolute stereochemistry.  

Science.gov (United States)

The first nonracemic synthesis of (+)-geranyllinaloisocyanide, starting with (-)-lactic acid methyl ester, has been accomplished by exploiting a [3.3] sigmatropic rearrangement of allyl cyanate. The synthesis enables assignment of the S configuration of the C(3) isocyano substituted, quaternary stereogenic center in natural geranyllinaloisocyanide. PMID:21491897

Ichikawa, Yoshiyasu; Matsuda, Yasunori; Okumura, Ken; Nakamura, Mitsuhiro; Masuda, Toshiya; Kotsuki, Hiyoshizo; Nakano, Keiji

2011-05-20

376

Lexical and Default Stress Assignment in Reading Greek  

Science.gov (United States)

Greek is a language with lexical stress that marks stress orthographically with a special diacritic. Thus, the orthography and the lexicon constitute potential sources of stress assignment information in addition to any possible general default metrical pattern. Here, we report two experiments with secondary education children reading aloud…

Protopapas, Athanassios; Gerakaki, Svetlana; Alexandri, Stella

2006-01-01

377

Assignment of the optical spectra of metal phthalocyanine anions  

Energy Technology Data Exchange (ETDEWEB)

Magnetic circular dichroism (MCD) spectroscopy was used to create a general band assignment scheme for main group and transition metal phthalocyanine anion species. The complexity of the overlapping absorption spectra of metal phthalocyanine anion species has been troublesome when creating models of the electronic structure of the phthalocyanine ring. The ZINDO program was used for molecular orbital calculations. 56 refs., 14 figs., 5 tabs.

Mack, J.; Stillman, M.J. [Univ. of Western Ontario, London (Canada)

1997-01-29

378

Spin-parity assignments in high-spin studies  

International Nuclear Information System (INIS)

Generally for the states populated in high-spin reactions, spins increase with increasing excitation energy. This is the result of the fact that these reactions tend to populate yrast or near yrast states. Angular distributions of gamma rays are presented for different stretched quadrupole and dipole as a gating transition. Parity assignment is discussed

2001-02-01

379

Helping Students Test Programs That Have Graphical User Interfaces  

Directory of Open Access Journals (Sweden)

Full Text Available Within computer science education, many educators are incorporating software testing activities into regular programming assignments. Tools like JUnit and its relatives make software testing tasks much easier, bringing them into the realm of even introductory students. At the same time, many introductory programming courses are now including graphical interfaces as part of student assignments to improve student interest and engagement. Unfortunately, writing software tests for programs that have significant graphical user interfaces is beyond the skills of typical students (and many educators. This paper presents initial work at combining educationally oriented and open-source tools to create an infrastructure for writing tests for Java programs that have graphical user interfaces. Critically, these tools are intended to be appropriate for introductory (CS1/CS2 student use, and to dovetail with current teaching approaches that incorporate software testing in programming assignments. We also include in our findings our proposed approach to evaluating our techniques.

Matthew Thornton

2008-08-01

380

[Budget Procedure and Agreements, Weekly Student Contact Hour Assignments and Definitions, Cypress College, 1974-75.  

Science.gov (United States)

Information related to the budgets of Cypress College and Fullerton College is provided in this report. The sections of the report are: Budget Agreements, 1974-75, North Orange County Community College District: Definitions and Formulas (Cypress College and Fullerton College); Budget Procedure, Cypress College (Capital Outlay Budget, Operations…

Scheidt, Omar H.

 
 
 
 
381

Assessing Students' Structured Programming Skills with Java: The "Blue, Berry, and Blueberry" Assignment  

Science.gov (United States)

Java is an object-oriented programming language. From a software engineering perspective, object-oriented design and programming is used at the architectural design, and structured design and programming is used at the detailed design within methods. As such, structured programming skills are fundamental to more advanced object-oriented…

Zhang, Xihui

2010-01-01

382

Assigning strains to bacterial species via the internet  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Methods for assigning strains to bacterial species are cumbersome and no longer fit for purpose. The concatenated sequences of multiple house-keeping genes have been shown to be able to define and circumscribe bacterial species as sequence clusters. The advantage of this approach (multilocus sequence analysis; MLSA is that, for any group of related species, a strain database can be produced and combined with software that allows query strains to be assigned to species via the internet. As an exemplar of this approach, we have studied a group of species, the viridans streptococci, which are very difficult to assign to species using standard taxonomic procedures, and have developed a website that allows species assignment via the internet. Results Seven house-keeping gene sequences were obtained from 420 streptococcal strains to produce a viridans group database. The reference tree produced using the concatenated sequences identified sequence clusters which, by examining the position on the tree of the type strain of each viridans group species, could be equated with species clusters. MLSA also identified clusters that may correspond to new species, and previously described species whose status needs to be re-examined. A generic website and software for electronic taxonomy was developed. This site http://www.eMLSA.net allows the sequences of the seven gene fragments of a query strain to be entered and for the species assignment to be returned, according to its position within an assigned species cluster on the reference tree. Conclusion The MLSA approach resulted in the identification of well-resolved species clusters within this taxonomically challenging group and, using the software we have developed, allows unknown strains to be assigned to viridans species via the internet. Submission of new strains will provide a growing resource for the taxonomy of viridans group streptococci, allowing the recognition of potential new species and taxonomic anomalies. More generally, as the software at the MLSA website is generic, MLSA schemes and strain databases for other groups of related species can be hosted at this website, providing a portal for microbial electronic taxonomy.

Hanage William P

2009-01-01

383

4D experiments measured with APSY for automated backbone resonance assignments of large proteins  

Energy Technology Data Exchange (ETDEWEB)

Detailed structural and functional characterization of proteins by solution NMR requires sequence-specific resonance assignment. We present a set of transverse relaxation optimization (TROSY) based four-dimensional automated projection spectroscopy (APSY) experiments which are designed for resonance assignments of proteins with a size up to 40 kDa, namely HNCACO, HNCOCA, HNCACB and HN(CO)CACB. These higher-dimensional experiments include several sensitivity-optimizing features such as multiple quantum parallel evolution in a 'just-in-time' manner, aliased off-resonance evolution, evolution-time optimized APSY acquisition, selective water-handling and TROSY. The experiments were acquired within the concept of APSY, but they can also be used within the framework of sparsely sampled experiments. The multidimensional peak lists derived with APSY provided chemical shifts with an approximately 20 times higher precision than conventional methods usually do, and allowed the assignment of 90 % of the backbone resonances of the perdeuterated primase-polymerase ORF904, which contains 331 amino acid residues and has a molecular weight of 38.4 kDa.

Kraehenbuehl, Barbara; Boudet, Julien; Wider, Gerhard, E-mail: gsw@mol.biol.ethz.ch [ETH Zurich, Institute of Molecular Biology and Biophysics (Switzerland)

2013-06-15

384

4D experiments measured with APSY for automated backbone resonance assignments of large proteins  

International Nuclear Information System (INIS)

Detailed structural and functional characterization of proteins by solution NMR requires sequence-specific resonance assignment. We present a set of transverse relaxation optimization (TROSY) based four-dimensional automated projection spectroscopy (APSY) experiments which are designed for resonance assignments of proteins with a size up to 40 kDa, namely HNCACO, HNCOCA, HNCACB and HN(CO)CACB. These higher-dimensional experiments include several sensitivity-optimizing features such as multiple quantum parallel evolution in a ‘just-in-time’ manner, aliased off-resonance evolution, evolution-time optimized APSY acquisition, selective water-handling and TROSY. The experiments were acquired within the concept of APSY, but they can also be used within the framework of sparsely sampled experiments. The multidimensional peak lists derived with APSY provided chemical shifts with an approximately 20 times higher precision than conventional methods usually do, and allowed the assignment of 90 % of the backbone resonances of the perdeuterated primase-polymerase ORF904, which contains 331 amino acid residues and has a molecular weight of 38.4 kDa.

2013-06-01

385

Generating NMR chemical shift assignments of intrinsically disordered proteins using carbon-detected NMR methods.  

Science.gov (United States)

There is an extraordinary need to describe the structures of intrinsically disordered proteins (IDPs) due to their role in various biological processes involved in signaling and transcription. However, general study of IDPs by NMR spectroscopy is limited by the poor (1)H amide chemical shift dispersion typically observed in their spectra. Recently, (13)C direct-detected NMR spectroscopy has been recognized as enabling broad structural study of IDPs. Most notably, multidimensional experiments based on the (15)N,(13)C CON spectrum make complete chemical shift assignment feasible. Here we document a collection of NMR-based tools that efficiently lead to chemical shift assignment of IDPs, motivated by a case study of the C-terminal disordered region from the human pancreatic transcription factor Pdx1. Our strategy builds on the combination of two three-dimensional (3D) experiments, (HN-flip)N(CA)CON and 3D (HN-flip)N(CA)NCO, that enable daisy chain connections to be built along the IDP backbone, facilitated by acquisition of amino acid-specific (15)N,(13)C CON-detected experiments. Assignments are completed through carbon-detected, total correlation spectroscopy (TOCSY)-based side chain chemical shift measurement. Conducting our study required producing valuable modifications to many previously published pulse sequences, motivating us to announce the creation of a database of our pulse programs, which we make freely available through our website. PMID:24333248

Sahu, Debashish; Bastidas, Monique; Showalter, Scott A

2014-03-15

386

Improved pulse sequences for sequence specific assignment of aromatic proton resonances in proteins.  

Science.gov (United States)

Aromatic proton resonances of proteins are notoriously difficult to assign. Through-bond correlation experiments are preferable over experiments that rely on through-space interactions because they permit aromatic chemical shift assignments to be established independently of the structure determination process. Known experimental schemes involving a magnetization transfer across the Cbeta-Cgamma bond in aromatic side chains either suffer from low efficiency for the relay beyond the Cdelta position, use sophisticated 13C mixing schemes, require probe heads suitable for application of high 13C radio-frequency fields or rely on specialized isotopic labelling patterns. Novel methods are proposed that result in sequential assignment of all aromatic protons in uniformly 13C/15N labelled proteins using standard spectrometer hardware. Pulse sequences consist of routinely used building blocks and are therefore reasonably simple to implement. Ring protons may be correlated with beta-carbons and, alternatively, with amide protons (and nitrogens) or carbonyls in order to take advantage of the superior dispersion of backbone resonances. It is possible to record spectra in a non-selective manner, yielding signals of all aromatic residues, or as amino-acid type selective versions to further reduce ambiguities. The new experiments are demonstrated with four different proteins with molecular weights ranging from 11 kDa to 23 kDa. Their performance is compared with that of (Hbeta)Cbeta(CgammaCdelta)Hdelta and (Hbeta)Cbeta(CgammaCdeltaCepsilon)Hepsilon pulse sequences. PMID:17237975

Löhr, Frank; Hänsel, Robert; Rogov, Vladimir V; Dötsch, Volker

2007-03-01

387

Student-onderwysers se interpretasie en gebruik van leerteoriekonsepte / Student teachers' interpretation and use of learning theory concepts  

Scientific Electronic Library Online (English)

Full Text Available SciELO South Africa | Language: Afrikaner Abstract in english This article focuses on how students in one specific undergraduate training module in an undergraduate teacher education qualification present their conceptual understanding of and learning in textual format. This investigation is grounded in the cognitive flexibility theory of Spiro and co-workers. [...] This theory is regarded as meaningful in analyses of student learning and extends the more traditional views of constructivist learning such as Piaget's explication of the processes of assimilation and accommodation, as well as the theories on conceptual change to the challenges of learning in complex and weakly structured knowledge domains requiring problem solving. Construction of knowledge in real life is thus more than the act of merely recalling previous knowledge and its applications. Flexibility in the use of knowledge is therefore encouraged as every learning situation differs and, for that reason, requires the flexible use of previous knowledge. Socio-cultural perspectives on student learning are also valuable for the purpose of this investigation as they postulate that learning and meaning occur anew within each knowledge domain and situation context. Student learning is also considered from eco-social and semiotic perspectives. Semiotics is the study of signs and sign systems and what they contribute to the process of constructing knowledge and meaning. Semiotic tools investigated in this article include all aspects of human sign creation and usage. Learning texts developed by learners are also regarded as the reality of meaning for them and are influenced by social and cultural activities. Furthermore, the manner and pattern in which signs are created and creatively used by learners are related to the underlying social rules, meanings and contexts accompanying the use of signs as internalised and used by learners. The conventions of tertiary academic studies as semiotic field, which especially includes the custom of expecting from students to communicate their knowledge of concepts in writing, is also regarded as part of social events and as such, part of an interactive process of knowledge and meaning creation. Student learning is therefore considered as a process where students make use of certain semiotic instruments and sign systems to present their knowledge and interpretation. These knowledge constructions are co-determined by the semiotic domain as well as by the textual formats in which students present their knowledge. A purposive selection of four undergraduate education students according to gender, vernacular and area of specialisation was made from an initial group of students who had voluntarily taken part in a study on study team learning in a second study year undergraduate module in Teacher Education. A comparative case study of these students was undertaken. Data were collected by way of an open-ended concept clarification questionnaire as well as an assessed module assignment, answers to a module test, and module learning journals. Analyses focused on students' content interpretation of specific concepts studied in the module, how students' understanding and knowledge of these concepts were formed, as well as the semiotic instruments they employed to construct their knowledge, and how these were presented in textual formats. In addition, the data were analysed in terms of the conventions of the discourse in the particular academic domain. The findings of the investigation indicated that students' textual presentation of their knowledge and interpretation of specific learning theory concepts largely agree with the module material; that students differed in their use of semiotic instruments to construct knowledge of learning theory concepts; that discourse practices used by students to communicate their knowledge textually differed; and that the textual communication of concept knowledge in the context of students' area of specialisation was largely co-determined by the social conventions of the academic domain

G J, van der Westhuizen; M P, van der Merwe.

388

FPGA-Based Laboratory Assignments for NoC-Based Manycore Systems  

Science.gov (United States)

Manycore systems have emerged as being one of the dominant architectural trends in next-generation computer systems. These highly parallel systems are expected to be interconnected via packet-based networks-on-chip (NoC). The complexity of such systems poses novel and exciting challenges in academia, as teaching their design requires the students

Ttofis, C.; Theocharides, T.; Michael, M. K.

2012-01-01

389

A Focused Assignment Encouraging Deep Reading in Undergraduate Biochemistry  

Science.gov (United States)

Encouraging undergraduate students to access, read, and analyze current primary literature can positively impact learning, especially in advanced courses. The incorporation of literature into coursework typically involves reading and responding to full research reports. Such exercises have clear value as students make connections between…

Spiegelberg, Bryan D.

2014-01-01

390

Requirements Management for Continuous Software Product Development  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Background: Continuous software product development is increasingly becoming the norm. New requirements come in a constant stream and need to be assigned to projects to make it into a release. However, in the literature requirements management practices are project based and no longer naturally fit to this new setting. Aim: Thus, it is of interest to understand the industrial practices for the identification of requirements and associated artifacts put under configura...

Khurum, Mahvish; Barney, Sebastian; Dzamashvili-fogelstro?m, Nina; Gorschek, Tony

2010-01-01

391

Critical Task Re-assignment under Hybrid Scheduling Approach in Multiprocessor Real-Time Systems  

CERN Document Server

Embedded hard real time systems require substantial amount of emergency processing power for the management of large scale systems like a nuclear power plant under the threat of an earth quake or a future transport systems under a peril. In order to meet a fully coordinated supervisory control of multiple domains of a large scale system, it requires the scenario of engaging multiprocessor real time design. There are various types of scheduling schemes existing for meeting the critical task assignment in multiple processor environments and it requires the tracking of faulty conditions of the subsystem to avoid system underperformance from failure patterns. Hybrid scheduling usually engages a combined scheduling philosophy comprising of a static scheduling of a set of tasks and a highly pre-emptive scheduling for another set of tasks in different situations of process control. There are instances where highly critical tasks need to be introduced at a least expected catastrophe and it cannot be ensured to meet a...

Nair, Gopalakrishnan T R

2012-01-01

392

Methods for Channel Assignment in Infrastructure based WLAN-A Survey  

Directory of Open Access Journals (Sweden)

Full Text Available Wireless Local Area Networks (WLANs are having tremendous growth & becoming increasingly popular. The use of the unlicensed frequency spectrum & the inexpensive network equipment has encouraged the deployment of WLANs. The planning of wireless local area network (WLAN infrastructures that supply large buildings or areas requires the consideration of many aspects (coverage, different traffic densities, interference, cost minimization, network throughput and therefore is a difficult task if done manually. In this paper we present a survey on the Channel Assignment techniques in IEEE 802.11. We then conclude the survey with several research issues open for further investigation.

Mrs. Sandhya Tanpure

2013-01-01

393

GMP Requirements  

Science.gov (United States)

The North Carolina Community College System BioNetwork's interactive eLearning tools (IETs) are reusable chunks of training that can be deployed in a variety of courses or training programs. IETs are designed to enhance, not replace hands-on training. Learners are able to enter a hands-on lab experience better prepared and more confident. This particular IET delves into Good Manufacturing Practices (GMP) requirements. In this module, visitors will take on several roles to learn the importances of GMPs at all stages of product manufacture. Flash is required to participate in this learning module.

2013-07-17

394

Allowing Students to Select Deliverables for Peer Review: Analysis of a Free-Selection Protocol  

DEFF Research Database (Denmark)

This study analyzes the benefits and limitations of a â??free-selectionâ?ť peer assignment protocol by comparing them to the widely implemented â??assigned-pairâ?ť protocol. The primary motivation was to circumvent the issues that often appear to the instructors implementing peer review activities with pre-assigned groups, without posing additional workload to the instructor or diminishing the learning outcomes. In the study, 36 sophomore students in a Computer Networking course were randomly assigned into two conditions: 20 in Assigned-Pair, where the students worked in pre-defined dyad, and 17 in Free-Selection, where students were able to explore and select peer work for review. Result analysis showed a very strong tendency in favor of the Free-Selection students regarding both domain specific (conceptual) and domain-general (reviewing) knowledge.

Papadopoulos, Pantelis M.; Lagkas, Thomas

2011-01-01

395

Ionospheric HF radio propagation in problems and computer assignments  

CERN Document Server

The book's purpose is to introduce the HF ionospheric radio-propagation, through the solution of problems and computer assignments. The problems and computer assignments are used primarily as a check and deepening of the theoretical part, which however is essential. Secondly, they are used to introduce the reader to new subjects in a natural way. The text proposes the main objective of bringing the reader which has a background similar to a master degree in physics or engineering, to an operative level in the field of ionospheric radio-propagation. The material covers the fundamentals of plasma physics, the Appleton-Hartree equation, its interpretation and discussion, and group refractive indices. The applications presented include ionograms simulation, ray tracing, and ionospheric absorption.

Scotto, Carlo

2013-01-01

396

Study of Rate Assignment on the Downlink of WCDMA  

Directory of Open Access Journals (Sweden)

Full Text Available In the paper, firstly we can know the power control is one of the most important technologies of radio resource management in WCDMA system, secondly the base principle of the outer loop power control is analyzed theoretically, and at the same time, both the utility function-based power control algorithm and the power control algorithm with the base station assignment are briefly discussed. The two algorithms are connected according to their advantages and disadvantages, a rate assignment algorithm on the downlink for the data transmission is proposed. The optimization goal of the resource allocation strategy is choosing appropriate utility function. The utility function reflects a flexible tradeoff between total system throughput and fairness. The power is distributed through the control module and the scheduling module. The simulations show the performance of the algorithm.

Mei-zi Shi

2010-12-01

397

Vehicle Suspension System Control Based on Pole Assignment Optimization  

Directory of Open Access Journals (Sweden)

Full Text Available The vibration control design of the vehicle active suspension system is studied. The controller of the suspension system is designed optimally based on the optimal pole assignment method. This paper will elaborate the suspension system on the following four aspects. Firstly, the effect of the road roughness disturbance on the smoothness of the vehicle is analyzed based on the linear model of the vehicle active suspension system. Then the optimal pole assignment method is proposed and the optimal controller is obtained by optimizing the poles of the system. The simulation results show that the input in size with the optimal controller is small. The control type besides the hydraulic equipment can be used as the actuator. Additionally, the optimal controller reduces the vibration caused by the road disturbance, which is difficult for the traditional PID controller. Finally, the proposed method has well practical property for improving the smoothness of the system by the simulation results.

Zhi Qu

2013-04-01

398

Assigning ? deformation from fine structure in exotic nuclei  

Science.gov (United States)

The nonadiabatic quasiparticle model for triaxial shapes is used to perform calculations for decay of 141Ho, the only known odd-Z even-N deformed nucleus for which fine structure in proton emission from both ground and isomeric states has been observed. All experimental data corresponding to this unique case namely, the rotational spectra of parent and daughter nuclei, decay widths and branching ratios for ground and isomeric states, could be well explained with a strong triaxial deformation ?~20. The recent experimental observation of fine structure decay from the isomeric state, can be explained only with an assignment of I? = 3/2+ as the decaying state, in contradiction with the previous assignment, of I? = 1/2+, based on adiabatic calculations. This study reveals that proton emission measurements could be a precise tool to probe triaxial deformations and other structural properties of exotic nuclei beyond the proton dripline.

Ferreira, L. S.; Maglione, E.; Arumugam, P.

2011-10-01

399

Assignment of the vibrational spectrum of L-cysteine  

Science.gov (United States)

Ab initio calculations of the complete unit cell of L-cysteine for both the orthorhombic and monoclinic polymorphs have been carried out. The results suggest the presence of a previously unrecognised, weak dihydrogen bond of a novel type: S-H···N-H in the gauche conformer of the monoclinic polymorph. Comparison of the calculated transition energies to those observed in the infrared, Raman and inelastic neutron scattering spectra of the orthorhombic form shows excellent agreement, as does the simulated INS spectra to that experimentally measured. The assignments are in general agreement with those in the literature but differ in detail. The strong intermolecular interactions present make the use of periodic-DFT essential in order to correctly assign the spectra. The need for, and the complementarity of, all three types of vibrational spectra: infrared, Raman and INS is clearly demonstrated.

Parker, Stewart F.

2013-10-01

400

Parity assignments based on ?-decay log ft values  

International Nuclear Information System (INIS)

The analysis of 154Pm decay data provides a striking instance of such violation. ? decay of 154Pm (2.68m) populates 11 levels in 154Sm; 68% of ?-intensity populates a 987 keV J? =3- level with log ft = 5.3 while each of the other 10 ?-branches has log ft ? 6.2. However, even though strong rule mandates negative parity for the parent 152Pm isomer, NDS evaluators have not even tentatively considered such an assignment. Extensive evidence gathered to date leads to the conclusion that ?-decay log ft value, by itself, cannot yield firm parity assignments. Certainly a sharp cut-off at log ft=5.9 for parity changing ?-transitions is inadmissible

2013-12-01

 
 
 
 
401

Efficient Updating Shortest Path Calculations for Traffic Assignment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Traffic planning in a modern congested society is an important and time consuming procedure. Finding fast algorithms for solving traffic problems is therefore of great interest for traffic planners allover the world. This thesis concerns solving the fixed demand traffic assignment problem (TAP) on a number of different transportation test networks. TAP is solved using the Frank-Wolfe algorithm and the shortest path problems that arise as subproblems to the Frank-Wolfe algorithm are solved us...

Holmgren, Johan

2004-01-01

402

THE ASSIGNMENT OF CLAIMS IN APPLICATION OF VAT COLLECTION SYSTEM  

Directory of Open Access Journals (Sweden)

Full Text Available The paper summarizes the theoretical concepts on assignment of claims and also its accounting and fiscal treatment.   In order to apply the rules, it was drawn up a study case of a legal person registered in VAT purposes which applies “the VAT collection system”.For arguing the way of solving the approached issue, were made references to the legislation in force.  

Raluca Bengescu

2013-05-01

403

Assignment of the infrared spectrum for the ethyl radical  

International Nuclear Information System (INIS)

The infrared spectra of CH_3CH_2, CH_3CD_2, CD_3CH_2, and CD_3CD_2 have been observed in argon matrices by photolysis of the corresponding dipropionyl peroxides. The spectra of the isotopic species coupled with detailed ab initio calculations have provided the basis for an assignment. The analysis has revealed the spectral features that are clearly a manifestation of the unpaired electron

1982-01-27

404

Value-of-information aware active task assignment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper discusses the problem of robust allocation of unmanned vehicles (T.N) to targets with uncertainties. In particular, the team consists of heterogeneous vehicles with different exploration and exploitation abilities. A general framework is presented to model uncertainties in the planning problems, which goes beyond traditional Gaussian noise. Traditionally, exploration and exploitation are decoupled into two assignment problems are planned with un-correlated goals. The coupled planni...

2013-01-01

405

Multi-period load assignment problem with stochastic load availability  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In this research, we want to investigate optimization techniques for a generic load assignment problem including a limited fleet of vehicles within a full-truck-load (FTL) multi-period setting including forecasts on load availability. Several policies are generated from simple heuristics through state of the art approaches such as consensus and restricted expectation algorithms up to the optimization of a subtree of scenarios. Moreover, myopic and a-posteriori deterministic optimizations (inc...

Crama, Yves; Pironet, Thierry

2013-01-01

406

Analysis of dynamic system optimal assignment with departure time choice  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Most analyses on dynamic system optimal (DSO) assignment are done by using the control theory with an outflow traffic model. On the one hand, this control theoretical formulation provides some attractive mathematical properties for analysis. On the other hand, however, this kind of formulation often ignores the importance of ensuring proper flow propagation. Moreover, the outflow models have also been extensively criticized for their implausible traffic behaviour. This paper ai...

Chow, A. H. F.

2004-01-01

407

Bayesian Selection of Nucleotide Substitution Models and Their Site Assignments  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Probabilistic inference of a phylogenetic tree from molecular sequence data is predicated on a substitution model describing the relative rates of change between character states along the tree for each site in the multiple sequence alignment. Commonly, one assumes that the substitution model is homogeneous across sites within large partitions of the alignment, assigns these partitions a priori, and then fixes their underlying substitution model to the best-fitting model from a hierarchy of n...

Wu, Chieh-hsi; Suchard, Marc A.; Drummond, Alexei J.

2013-01-01

408

Learning to Assign Degrees of Belief in Relational Domains  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A recurrent problem in the development of reasoning agents is how to assign degrees of beliefs to uncertain events in a complex environment. The standard knowledge representation framework imposes a sharp separation between learning and reasoning; the agent starts by acquiring a “model” of its environment, represented into an expressive language, and then uses this model to quantify the likelihood of various queries. Yet, even for simple queries, the problem of evaluating probabilities fr...

Koriche, Fre?de?ric

2008-01-01

409

Study on Optimization of Railway Passenger Train Sets Assignment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The passenger train sets is the carrier of railway passenger transport production and reasonable use of the passenger train sets is one of the key goals of railway transportation plan. In order to improve the operation efficiency of passenger train sets, optimization model of railway passenger train sets assignment have been built to minimize the non-production staying time of passenger train sets at passenger station based on established train diagram and established configuration of t...

Changfeng Zhu; Deyuan Liu; Linna Cheng; Haijun Li

2013-01-01

410

Students’ Perception on Teamwork: A Study of Course Objectives Accomplishment and Satisfaction in Higher Education  

Directory of Open Access Journals (Sweden)

Full Text Available The academic press and management increasingly emphasize the importance of teams for organisational success in the modern economy. The use of teams has really expanded dramatically to face the competitive challenges. According to many research studies, one of the most common skills required by new work practices and processes is the ability to work in a team. As we know- education is also a process, it has an important role in recognising the needs & importance of teamwork where teachers can encourage their students to combine different skills they have to make the most of their united efforts towards a common goal. However, it was also found that students can meet their course objectives and satisfactions only if they can work in teams and access support from their teachers. If there is a good teamwork, it results a win-win scenario where teachers are able to teach more and students are able to learn more to meet their course objectives more efficiently. Working together helps teachers learn how to be more effectively use classroom time to impart knowledge and help the students to be more committed and dedicated to gain knowledge. From team teaching to teacher-student relationship, teamwork must be present in the classrooms of all levels. So, it is very important for the administration staff of educational institutions to understand the existence of teamwork in their institutions that could influence the accomplishment of course objectives and their satisfactions. This paper is concerned with examining the students’ perceptions regarding the linkage between teamwork with their course accomplishment and satisfaction level that exist in the academic institutions of North-East Region of India. The result suggests that - allowing students to work in teams lead to faster achieving of course objectives and student satisfaction, provided the teachers really pay attention on teams and setting up the assignments for the students working on the team carefully.

Dr. Papori Baruah

2014-04-01

411

Assigning linkage haplotypes from parent and progeny genotypes  

Energy Technology Data Exchange (ETDEWEB)

Given the genotypes of parents and progeny, their haplotypes over several or many linked loci can be easily assigned by listing the allele type at each locus along the haplotype known to be from each parent. Only a small number (5-10) of progeny per family is usually needed to assign the parental and progeny haplotypes. Any gaps left in the haplotypes may be filled in from the assigned haplotypes of relatives. The process is facilitated by having multiple alleles at the loci and by using more linked loci in the haplotype and with more progeny from the mating. Crossover haplotypes in the progeny can be identified by their being unique or uncommon, and the crossover point can often be detected if the locus linkage map order is known. The haplotyping method applies to outbreeding populations in plants, animals, and man, as well as to traditional experimental crosses of inbred lines. The method also applies to half-sib families, whether the genotype of the mates are known or unknown. The haplotyping procedure is already used in linkage analysis but does not seem to have been published. It should be useful in teaching and in genetic applications of haplotypes. 15 refs., 5 tabs.

Nejati-Javaremi, A.; Smith, C. [Univ. of Guelph, Ontario (Canada)

1996-04-01

412

Target assignment for security officers to K targets (TASK)  

International Nuclear Information System (INIS)

A probabilistic algorithm is developed to provide an optimal Target Assignment for Security officers to K targets (TASK) using a maximin criterion. Under the assumption of only a limited number (N) of security officers, the TASK computer model determines deployment assignments which maximize the system protection against sabotage by an adversary who may select any link in the system, including the weakest, for the point of attack. Applying the TASK model to a hypothetical nuclear facility containing a nine-level building reveals that aggregate targets covering multiple vital areas should be utilized to reduce the number of possible target assignments to a value equal to or only slightly larger than N. The increased probability that a given aggregate target is covered by one or more security officers offsets the slight decrease in interruption probability due to its occurring earlier in the adversary's path. In brief, the TASK model determines the optimal maximin deployment strategy for limited numbers of security officers and calculates a quantitative measure of the resulting system protection

1983-01-01

413

Correction of spin diffusion during iterative automated NOE assignment.  

Science.gov (United States)

Indirect magnetization transfer increases the observed nuclear Overhauser enhancement (NOE) between two protons in many cases, leading to an underestimation of target distances. Wider distance bounds are necessary to account for this error. However, this leads to a loss of information and may reduce the quality of the structures generated from the inter-proton distances. Although several methods for spin diffusion correction have been published, they are often not employed to derive distance restraints. This prompted us to write a user-friendly and CPU-efficient method to correct for spin diffusion that is fully integrated in our program ambiguous restraints for iterative assignment (ARIA). ARIA thus allows automated iterative NOE assignment and structure calculation with spin diffusion corrected distances. The method relies on numerical integration of the coupled differential equations which govern relaxation by matrix squaring and sparse matrix techniques. We derive a correction factor for the distance restraints from calculated NOE volumes and inter-proton distances. To evaluate the impact of our spin diffusion correction, we tested the new calibration process extensively with data from the Pleckstrin homology (PH) domain of Mus musculus beta-spectrin. By comparing structures refined with and without spin diffusion correction, we show that spin diffusion corrected distance restraints give rise to structures of higher quality (notably fewer NOE violations and a more regular Ramachandran map). Furthermore, spin diffusion correction permits the use of tighter error bounds which improves the distinction between signal and noise in an automated NOE assignment scheme. PMID:15040991

Linge, Jens P; Habeck, Michael; Rieping, Wolfgang; Nilges, Michael

2004-04-01

414

Confirmed Assignments of Isomeric Dimethylbenzyl Radicals Generated by Corona Discharge  

Science.gov (United States)

Polymethylbenzyl radicals, multi-methyl-substituted benzyl radicals, have been believed to be an ideal model for understanding the torsional effect of methyl group and substitution effect on electronic transition. These radicals are mainly generated from polymethylbenzenes by electric discharge for spectroscopic observation. However, the existence of several methyl groups on the benzene ring may produce several isomeric polymethylbenzyl radicals by removing one of the C-H bonds of each methyl group at different substitution position, which makes the assignment of spectrum ambiguous. In this work, the controversial vibronic assignments of isomeric dimethylbenzyl radicals were clearly resolved by using different precursors. By using corresponding dimethylbenzyl chlorides as precursors, we identified the origins of the vibronic bands of the dimethylbenzyl radicals generated by corona discharge of precursors 1,2,3- and 1,2,4-trimethylbenzenes. From the analysis of the spectra observed from the dimethylbenzyl chlorides in a corona excited supersonic expansion using a pinhole-type glass nozzle, we revised previous assignments of the 2,6- and 2,3-dimethylbenzyl radicals as well as the 3,4-, 2,4-, and 2,5-dimethylbenzyl radicals. In addition, spectroscopic data of electronic transition and vibrational mode frequencies in the ground electronic state of each isomer were accurately determined by comparing them with those obtained by an ab initio calculation and with the known vibrational data of precursors.

Yoon, Young Wook; Lee, Sang Kuk

2012-06-01

415

Parody: A Student's Response to J. D. Salinger.  

Science.gov (United States)

Reports on a "summing up" assignment at the end of a course on the fiction of J. D. Salinger. Notes the way students used parodies to display their knowledge of Salinger's style and recurrent themes. Offers one student-written parody as an example. (RL)

Workman, Brooke

1981-01-01

416

Investigating Secondary School Students' Unmediated Peer Assessment Skills  

Science.gov (United States)

The purpose of this study was to investigate secondary school students' unmediated peer assessment skills. Specifically, 36 seventh graders, without receiving any kind of support, were anonymously assigned to reciprocally assess their peers' science web-portfolios. Additionally, students' attitudes towards and intentions about the use of…

Tsivitanidou, Olia E.; Zacharia, Zacharias C.; Hovardas, Tasos

2011-01-01

417

Increasing the Homework Completion Rates of Students with Mild Disabilities.  

Science.gov (United States)

This article offers guidelines for increasing the homework completion rates of students with mild disabilities: (1) vary the amount and type of homework assignments; (2) provide motivating acts so that students complete their homework; (3) use peer-mediated strategies; and (4) involve parents in the homework process. (Author/DB)

Salend, Spencer J.; Gajria, Meenakshi

1995-01-01

418

Turning to Turnitin to Fight Plagiarism among University Students  

Science.gov (United States)

This paper reports on a pilot project of the Turnitin plagiarism detection software, which was implemented to determine the impact of the software on the level of plagiarism among University of Botswana (UB) students. Students' assignments were first submitted to the software without their knowledge so as to gauge their level of plagiarism. The…

Batane, Tshepo

2010-01-01

419

Media Images: Do They Influence College Students' Body Image?  

Science.gov (United States)

Body image perception and body mass index (BMI) among college students exposed and not exposed to photographs of models were compared. Classes were assigned to receive a presentation with or without photographs of models incorporated. Students (n = 184) completed a survey about body/weight satisfaction, height, weight, and the Contour Drawing…

Hill, Gina Jarman

2009-01-01

420

Classroom Success Stories: Exposing Students to Time Bonding.  

Science.gov (United States)

Recommends using time bonding (finding a role model and researching the process and story behind that individual's accomplishments) as a means to interest students in history. Outlines the instructions covering the objectives of the writing assignments. Students researched a variety of biographies including Jackie Robinson and Lyndon Johnson. (MJP)

Papaleo, Ralph J.

1996-01-01

 
 
 
 
421

Constructing Rubrics and Assessing Progress Collaboratively with Social Studies Students  

Science.gov (United States)

When social studies students have a role in the processes of designing assignments, constructing rubrics, and conducting assessments, they participate in authentic democratic principles relative to their own learning. When given voice, choice, and ownership in their education, social studies students gain opportunities to strengthen their depth of…

Gallavan, Nancy P.; Kottler, Ellen

2009-01-01

422

Reactor requirements  

International Nuclear Information System (INIS)

Reactor requirements can be put in a clearer perspective if they are seen together with those of the preceding steps, i.e. JET, NET and DEMO. Extrapolation from JET is moderate in plasma size, considerable in machine size and large in plasma performance and machine endurance. Extrapolation from the present understanding of tokamak plasma physics, to be developed further both in JET and elsewhere and, from technologies that we plan to develop for NET, can lead to a viable reactor, but with uncertainties regarding economic performance. Although overall economic predictions for fusion may be premature, consideration of capital costs at least indicates the desirable direction and incentive for further progress in plasma physics and technology. Among physics issues the plasma power density (which is directly related to operational limits on beta, plasma density and plasma current), the power and particle loads on the walls of the device as well as the plasma exhaust requirements, and the prospects for steady-state operation, are of primary importance. Technologically the most severe requirements are on operational reliability, lifetime of plasma-facing components, and remote handling. (author)

1987-06-29

423

Social Media: It's What Students Do  

Science.gov (United States)

In assessing the application of social media on the teaching of business communication, this article looks at MBA student use of blogs, online photo database contributions, and video contributions to YouTube channels. These assignments were part of their course activities, which included a 2-week study tour in China. The article looks at these…

Kelm, Orlando R.

2011-01-01

424

Enhancing Student Learning in Online Courses.  

Science.gov (United States)

Seven teaching and learning tools, including course handouts, threaded discussion forums, and written assignments enhance learning in online courses by enabling students to deepen their understanding of course material and reduce anxiety about the online setting and their performance in the class. These tools have been used in 24 community college…

Hofstad, Marjorie E.

425

WRITTEN EXAMS: CONCRETE SOLUTION TO SOLVE IMAGE-TEXT RELATION FOR VISUAL COMMUNICATION DESIGN STUDENTS (ART STUDENTS?  

Directory of Open Access Journals (Sweden)

Full Text Available Post modern visual culture and semiotic places great emphasis on image as well as text; consequently, learning now includes the study of both text and image that are made up of many forms of mixed media, and does not separate text from images. Visual Communication Design’s Students have seldom taken written exams, reading text, and writing assignments. Most design’s subject matter emphasize in studio productions. Thus the lecturers have seldom given exams or assignments which relate between text and images. One of design’s subject matter is photography. Most photographic lecturers had never given written exams; instead they gave photo assignments for final project. Most of the lecturers gave either written exams or studio productions, but they have seldom or never integrate the text and images. The survey research conducted on 100 communication design students in third and fifth semester, and three photographic lecturers, in Tarumanagara University. The photographic lecturers prepared learning materials, student’s presentation, and exams with combine text and images. Problem based learning was used to make students more focused on the themes and assignments. Moreover, the lecturers can facilitates student, supervise student, and provide feed back. Barrett’s photo criticism was used to help students relate text and image of photographs. Some guided question was modified from Barrett’s photo criticism model. The guided questions and images selections became important steps during delivery materials, and listed in lecturer’s presentation and student’s assignments. The guided questions and a good selection of images helped the discussion, and brought students to complex thinking.

Abdullah Sani Kamaluddin

2012-07-01

426

EZ-ASSIGN, a program for exhaustive NMR chemical shift assignments of large proteins from complete or incomplete triple-resonance data.  

Science.gov (United States)

For several of the proteins in the BioMagResBank larger than 200 residues, 60 % or fewer of the backbone resonances were assigned. But how reliable are those assignments? In contrast to complete assignments, where it is possible to check whether every triple-resonance Generalized Spin System (GSS) is assigned once and only once, with incomplete data one should compare all possible assignments and pick the best one. But that is not feasible: For example, for 200 residues and an incomplete set of 100 GSS, there are 1.6 × 10260 possible assignments. In "EZ-ASSIGN", the protein sequence is divided in smaller unique fragments. Combined with intelligent search approaches, an exhaustive comparison of all possible assignments is now feasible using a laptop computer. The program was tested with experimental data of a 388-residue domain of the Hsp70 chaperone protein DnaK and for a 351-residue domain of a type III secretion ATPase. EZ-ASSIGN reproduced the hand assignments. It did slightly better than the computer program PINE (Bahrami et al. in PLoS Comput Biol 5(3):e1000307, 2009) and significantly outperformed SAGA (Crippen et al. in J Biomol NMR 46:281-298, 2010), AUTOASSIGN (Zimmerman et al. in J Mol Biol 269:592-610, 1997), and IBIS (Hyberts and Wagner in J Biomol NMR 26:335-344, 2003). Next, EZ-ASSIGN was used to investigate how well NMR data of decreasing completeness can be assigned. We found that the program could confidently assign fragments in very incomplete data. Here, EZ-ASSIGN dramatically outperformed all the other assignment programs tested. PMID:24022834

Zuiderweg, Erik R P; Bagai, Ireena; Rossi, Paolo; Bertelsen, Eric B

2013-10-01

427

EZ-ASSIGN, a program for exhaustive NMR chemical shift assignments of large proteins from complete or incomplete triple-resonance data  

Energy Technology Data Exchange (ETDEWEB)

For several of the proteins in the BioMagResBank larger than 200 residues, 60 % or fewer of the backbone resonances were assigned. But how reliable are those assignments? In contrast to complete assignments, where it is possible to check whether every triple-resonance Generalized Spin System (GSS) is assigned once and only once, with incomplete data one should compare all possible assignments and pick the best one. But that is not feasible: For example, for 200 residues and an incomplete set of 100 GSS, there are 1.6 Multiplication-Sign 10{sup 260} possible assignments. In 'EZ-ASSIGN', the protein sequence is divided in smaller unique fragments. Combined with intelligent search approaches, an exhaustive comparison of all possible assignments is now feasible using a laptop computer. The program was tested with experimental data of a 388-residue domain of the Hsp70 chaperone protein DnaK and for a 351-residue domain of a type III secretion ATPase. EZ-ASSIGN reproduced the hand assignments. It did slightly better than the computer program PINE (Bahrami et al. in PLoS Comput Biol 5(3):e1000307, 2009) and significantly outperformed SAGA (Crippen et al. in J Biomol NMR 46:281-298, 2010), AUTOASSIGN (Zimmerman et al. in J Mol Biol 269:592-610, 1997), and IBIS (Hyberts and Wagner in J Biomol NMR 26:335-344, 2003). Next, EZ-ASSIGN was used to investigate how well NMR data of decreasing completeness can be assigned. We found that the program could confidently assign fragments in very incomplete data. Here, EZ-ASSIGN dramatically outperformed all the other assignment programs tested.

Zuiderweg, Erik R. P., E-mail: zuiderwe@umich.edu; Bagai, Ireena [The University of Michigan Medical School, Department of Biological Chemistry (United States); Rossi, Paolo [Rutgers University, Center for Integrative Proteomics Research (United States); Bertelsen, Eric B. [Arbor Communications, Inc. (United States)

2013-10-15

428

Mapping Learning Outcomes and Assignment Tasks for SPIDER Activities  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Modern engineering programs have to address rapidly changing technical content and have to enable students to develop transferable skills such as critical evaluation, communication skills and lifelong learning. This paper introduces a combined learning and assessment activity that provides students with opportunities to develop and practice their soft skills, but also extends their theoretical knowledge base. Key tasks included self directed inquiry, oral and written communication as well as ...

Lyn Brodie

2011-01-01

429

Biological standards for potency assignment to fibrinolytic agents used in thrombolytic therapy.  

Science.gov (United States)

Thrombolytic drugs are used for the treatment of thrombotic disorders such as acute myocardial infarction, acute ischemic stroke, and pulmonary embolism. Biological standards are used for potency assignment to the range of fibrinolytic proteins used in thrombolytic therapy. The World Health Organization (WHO) International Standards are primary reference materials, calibrated in arbitrary units (international unit), assigned by collaborative study using the range of assay methods available at the time. Provided the standard and test material are equivalent, adhering to the principle of measuring like versus like, the exact nature of the assay method is unimportant. This approach has been applied successfully for several decades since the advent of fibrinolytic treatment, ensuring consistency for potency labeling and the correct dosing of patients. The emergence of generic biosimilar products and new recombinant variants poses a challenge to this system, where functional differences impact on the relative biological activity in different assay systems. A more demanding system of standardization may therefore be required on the basis of international reference materials with associated reference methods. WHO recognizes this, and where possible and practical is seeking to incorporate concepts of traceability, uncertainty, and commutability to International Standards. However, some caution is needed because limitations on the characterization of many complex biologicals remain real, and a flexible approach is required on the basis of real-world needs. PMID:24481797

Thelwell, Craig

2014-03-01

430

Intensity assignments from historical earthquake data: issues of certainty and quality  

Directory of Open Access Journals (Sweden)

Full Text Available The use of macroseismic data in assessing parameters for historical earthquakes for use in seismic hazard assessment has thrown more attention on the way in which these data are treated. The processes involved in selecting which macroseismic data from a historical earthquake survive to the present day can be modelled as a series of filters, most of which are outside the control of the seismologist/historian, and which cause distortion in the resulting picture of the earthquake. The ways in which the data become distorted should be taken into account when interpreting the data as intensity values. One can usefully discriminate between the certainty of an intensity assignment (how well the data fits the scale and the quality of an intensity assignment (how well one can trust that the value is a true reflection of what really happened. The expression of uncertainty is usually in the form of ranged intensity values; the expression of quality requires an extra symbol or rating of some sort. A system is presented for three types of quality problems: reliability of intensity assessment, locational certainty or uncertainty, and veracity of the original data. Each of these is treated as a binary variable, giving a final quality code ranging from 0 (best to 7 (worst. This single integer quality code preserves three types of information which can then be expanded as required by computer programs designed to handle macroseismic data.

R. M. W. Musson

1998-06-01

431

Student Intern Program - PotentialMentors for 2014 - 2015  

Science.gov (United States)

The student will be trained in all basic methodologies required in our studies. The student will work under the supervision of a post-doctoral fellow. The student will have the opportunity to pursue small independent projects.

432

Student Intern Program - CurrentMentors for 2013 - 2014  

Science.gov (United States)

The student will be trained in all basic methodologies required in our studies. The student will work under the supervision of a post-doctoral fellow. The student will have the opportunity to pursue small independent projects.

433

African American Accounting Majors and the 150-hr Requirement  

Science.gov (United States)

The study provides information on African American accounting majors' views regarding 150-hr issues. The authors collected data from 152 students at two schools. Students at one school supported the requirement while those at the other school did not. However, students believed that the 150-hr requirement enhances the quality of certified public…

Booker, Quinton; Hill, Cecil L.; Wright, Carl

2010-01-01

434

78 FR 71725 - Household Movers' Disclosure Requirements  

Science.gov (United States)

...2013). This collection has been assigned OMB Control No. 2140-0027. Unless renewed, OMB approval expires on August 31, 2016. The display of a currently valid OMB control number for this collection is required by law. Under the PRA and 5 CFR...

2013-11-29

435

Apron layout design and flight-to-gate assignment at Lanseria International Airport  

Scientific Electronic Library Online (English)

Full Text Available SciELO South Africa | Language: English Abstract in english Air traffic is continuously increasing and more efficient air transport systems are required to handle the air travel demand. The study investigates the expansion of Lanseria International Airport in Gauteng, South Africa. Expansion of Lanseria requires a study of the airport apron layout to ensure [...] efficient passenger-aircraft flow as well as the efficient flow of aircraft to and from the airport. The candidate layout designs are based on the layout concept of the Hartsfield-Jackson Atlanta International Airport in Atlanta, USA. In the study, different airport apron layouts were compared, including the existing layout of Atlanta Airport, via a simulation model of each. Designs based mainly on passenger transfer distance between the terminal building and aircraft were evaluated. The cross-entropy method was used to develop a generic flight-to-gate assignment program that minimises passenger transfer distances.

T., Leonard; J., Bekker.

436

Employability of Foreign BBA Students at Arcada  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This research is commissioned by Arcada Career Services. The topic of this research is “Employability of Foreign BBA Students at Arcada.” This study determines how foreign degree students can differentiate themselves in the Finnish labour market. The importance of the personal brand and the university brand are also discussed. The addressed research questions are: Does the student’s university’s brand influence the employability of students? What are the employers’ requirements of f...

Weckman, Nora

2012-01-01

437

Development of a Microbiology Course for Diverse Majors; Longitudinal Survey of the Use of Various Active, Problem-Based Learning Assignments  

Directory of Open Access Journals (Sweden)

Full Text Available Educators are increasingly being encouraged to use more active- and problem-based-learning techniques and assignments in the classroom to improve critical and analytical thinking skills. Active learning-based courses have been purported to be more time consuming than traditional lecture methods and for many instructors have therefore proven difficult to include in many one-semester science courses. To address this problem, a series of assignments was developed for use in a basic microbiology course involving sophomore-, junior-, and senior-level students from five different biology majors (environmental science, biology, biochemistry, premedicine, and physician assistant. Writing assignments included global, historical, and social themes for which a standardized grading format was established. Students also participated in a class debate in which the merits of the living microbial kingdoms were discussed, with only one kingdom being saved from an imaginary global catastrophe. Traditional lectures were facilitated by the use of a dedicated note packet developed by the instructor and specific for course content. Laboratories involved group analysis of mini-case history studies involving pathogenic microbes. Students’ perceptions of the subject were assessed using an exit questionnaire sent to 100 of the 174 students who had taken the course during the 5-year time period. The majority of the 64 students who responded were sophomores (78%, in keeping with the target audience, and their perception of the course’s challenge level was significantly higher (p < 0.03, 8.7 than their junior and senior counterparts (7.9. Students rated the most useful learning tools as case history studies (9.4 and the class debate (9.1, with the introduction of a dedicated microbiology links web page to the University website representing the sole component resulting in a statistically significant increase in students’ perceptions of the importance of the course (p < 0.03.

Diana R. Cundell

2009-12-01

438

Third year nursing students' understanding of how to find and evaluate information from bibliographic databases and Internet sites.  

Science.gov (United States)

The aim of this study was to increase undergraduate nursing students' knowledge of finding and evaluating information from selected bibliographic databases and Internet sites. A quasi-experimental design was adopted. The 2004 autumn cohort (n=480) was divided into two approximately equal groups at the beginning of their studies. One group was subjected to a greater number of assignments requiring them to find and evaluate bibliographic and Internet-based information. The assignments were spread throughout the curriculum. Questionnaires were used to collect data. The low response rate makes generalizing the findings difficult. Only small differences were demonstrated between the knowledge of the revised assignment group and that of the other students. Both groups had a poor understanding of the use of important search and evaluation techniques. The results indicate that strategies proven in one context are not necessarily as effective in a new context and that more research is needed into which learning activities best enhance the development of information literacy skills during undergraduate nursing education. PMID:21288607

Jacobsen, Hilary E; Andenćs, Randi

2011-11-01

439

Possible assignment of chiral twin bands in 188 I r  

Science.gov (United States)

High-spin states in the doubly-odd Z=77 nucleus 188 I r were populated in the 186 W ( 7L i,5n ) reaction at 52 MeV . Two nearly degenerate ?I=1 sequences with the same parity were established. Both bands have been assigned the ? h9/2 ?? i13/2 configuration, based on the systematic behavior of these excitations in the Ir nuclei and on the measured values for the B(M1)/B(E2) ratios, and they are suggested as candidates for a chiral doublet.

Balabanski, D. L.; Danchev, M.; Hartley, D. J.; Riedinger, L. L.; Zeidan, O.; Zhang, Jing-Ye; Barton, C. J.; Beausang, C. W.; Caprio, M. A.; Casten, R. F.; Cooper, J. R.; Hecht, A. A.; Krücken, R.; Novak, J. R.; Zamfir, N. V.; Zyromski, K. E.

2004-10-01

440

$J^P$ Assignments of $\\Lambda_c^+$ Baryons  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The "good" diquark is employed to study $\\Lambda_c^{+}$ baryons within a mass loaded flux tube model. The study indicates that all $\\Lambda_c^{+}$ baryons candidates in the 2008 review by the Particle Data Group (PDG) are well described in the mass loaded flux tube model. The quantum numbers $J^P$ of these $\\Lambda_c^{+}$ candidates are assigned. If $\\Lambda_c(2765)^{+}$ is an orbitally excited $\\Lambda^+_c$, it is likely the $J^P={3\\over 2}^+$ one. If $\\Lambda_c(2765)^+$ is...

Chen, Bing; Wang, Deng-xia; Zhang, Ailin

2009-01-01

 
 
 
 
441

Two Reformulations for the Dynamic Quadratic Assignment Problem  

Directory of Open Access Journals (Sweden)

Full Text Available Problem statement: The Dynamic Quadratic Assignment Problem (DQAP, an NP-hard problem, is outlined and reformulated in two alternative models: Linearized model and logic-based model. Approach: The solution methods for both models based on combinatorial methods (Benders? Decomposition and Approximate Dynamic Programming and constraint logic programming, respectively, are proposed. Results: Proofs of model equivalence and solution methodology are presented. Conclusion: Both proposed models are more simplified leading to possible hybrid adaptations of existing techniques for more practical approaches.

Sirirat Muenvanichakul

2010-01-01

442

Java bytecode verification via static single assignment form  

DEFF Research Database (Denmark)

Java Virtual Machines (JVMs) traditionally perform bytecode verification by way of an iterative data-flow analysis. Bytecode verification is necessary to ensure type safety because temporary variables in the JVM are not statically typed. We present an alternative verification mechanism that transforms JVM bytecode into Static Single Assignment Form (SSA) and thereby propagates definitions directly to uses. Type checking at control flow merge points can then be performed in a single pass. Our prototype implementation of the new algorithm is faster than the standard JVM bytecode verifier. It has the additional benefit of generating SSA as a side effect, which may be immediately useful for a subsequent dynamic compilation stage.

Probst, Christian W.

2008-01-01