WorldWideScience
1

Assignment submission, student behaviour and experience  

OpenAIRE

Time management is one of the life skills students are expected to acquire during their time at university and dealing with workload is an issue for both academics and students. It is suspected that students do not initially manage their time very well and use deadlines to control what they do and when. However, it is also believed that students' time management improves as they progress through their course. This paper explores the student experience of assignment submission with respect to ...

Keith Gregory; Sue Moron-Garcia

2009-01-01

2

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

3

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

4

Assignment submission, student behaviour and experience  

Directory of Open Access Journals (Sweden)

Full Text Available Time management is one of the life skills students are expected to acquire during their time at university and dealing with workload is an issue for both academics and students. It is suspected that students do not initially manage their time very well and use deadlines to control what they do and when. However, it is also believed that students' time management improves as they progress through their course. This paper explores the student experience of assignment submission with respect to the assessment of one undergraduate module. The aim is to investigate how students deal with their workload, whether their time management improves as they get older and more experienced, if electronic submission has any effect on the way they manage their work and the influence, on submission, of the length of time allowed to complete an exercise. Both quantitative and qualitative data, derived from submission records and the results of interviews and an email survey were used to examine student behaviour and to investigate their experience. The data suggest that while many students find coincident deadlines, often found on university courses, very stressful, they feel that their management of these deadlines improves over time. They value the submission flexibility and economy offered by an electronic system as well as the opportunity, afforded by long deadlines, to discuss assessment strategies and solutions with their peers.

Keith Gregory

2009-07-01

5

Assigning Wikipedia editing: Triangulation toward understanding university student engagement  

OpenAIRE

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

6

Data requirements for reliable chemical shift assignments in deuterated proteins  

International Nuclear Information System (INIS)

The information required for chemical shift assignments in large deuterated proteins was investigated using a Monte Carlo approach (Hitchens et al., 2002). In particular, the consequences of missing amide resonances on the reliability of assignments derived from C? and CO or from C? and C? chemical shifts was investigated. Missing amide resonances reduce both the number of correct assignments as well as the confidence in these assignments. More significantly, a number of undetectable errors can arise when as few as 9% of the amide resonances are missing from the spectra. However, the use of information from residue specific labeling as well as local and long-range distance constraints improves the reliability and extent of assignment. It is also shown that missing residues have only a minor effect on the assignment of protein-ligand complexes using C? and CO chemical shifts and C? inter-residue connectivity, provided that the known chemical shifts of the unliganded protein are utilized in the assignment process

7

More Districts Factoring Poverty into Student-Assignment Plans  

Science.gov (United States)

A growing number of school districts are trying to break up concentrations of poverty on their campuses by taking students' family income into consideration in school assignments. Some of the districts replaced race with socioeconomic status as a determining indicator after the U.S. Supreme Court ruled in 2007 that using race as the primary factor…

Zehr, Mary Ann

2010-01-01

8

Influence of Assigned Reading on Senior Medical Student Clinical Performance  

Directory of Open Access Journals (Sweden)

Full Text Available OBJECTIVE: This Institutional Review Board-approved, prospective, observational study compared the clinical performance of senior medical students in an emergency medicine (EM clerkship using a clinical behavioral evaluation tool in which one group had mandatory, topic specific readings and the other did not.METHODS: The study took place in an urban, tertiary referral center emergency department treating 43,000 patients annually and supporting medical student clerkships and an EM residency. The grades of two groups of senior medical students participating in an elective EM clerkship were compared. Those students during the 2002-2004 academic years were not assigned mandatory, topic-specific reading for the clerkship, while those during the 2004-2007 academic years were. The groups were compared on baseline demographic information, prior academic performance, and EM clerkship grade distributions using appropriate statistical techniques, including multinomial logistic regression, chi-square tests, and Fisher's Exact tests.RESULTS: The control and experimental groups each had 83 subjects and were similar in baseline characteristics, except for the control group performing better than the experimental group during the basic science training of medical school (years 1-2; p=0.01. The experimental group had statistically significant more members in the EM Interest Group (EMIG; p=0.0001 and more members who went on to match in an EM residency (p=0.0007. The difference in grade distributions between the control group and experimental group was not statistically significant (p=0.40. Of note, those student members of the EMIG (p=0.0005 and those later matching to an emergency medicine residency (p<0.0001 were more likely to earn a grade of "honors" for the clerkship.CONCLUSION: The addition of uniform, topic-specific reading assignments to an EM senior medical student curriculum does not improve the overall clinical performance of those students as measured using a clinical behavioral evaluation tool.

Hoffman, Lance

2009-02-01

9

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.

Dave Dempsey

10

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

11

Lotteries in Student Assignment: An Equivalence Result. NBER Working Paper No. 16140  

Science.gov (United States)

This paper formally examines two competing methods of conducting a lottery in assigning students to schools, motivated by the design of the centralized high school student assignment system in New York City. The main result of the paper is that a single and multiple lottery mechanism are equivalent for the problem of allocating students to schools…

Pathak, Parag A.; Sethuraman, Jay

2010-01-01

12

Assigning Inquiry: How Handouts for Research Assignments Guide Today's College Students. Project Information Literacy Progress Report  

Science.gov (United States)

A report of findings from a content analysis of 191 course-related research assignment handouts distributed to undergraduates on 28 college campuses across the U.S., as part of Project Information Literacy. A majority of handouts in the sample emphasized standards about the mechanics of compiling college research papers, more so than guiding…

Head, Alison J.; Eisenberg, Michael B.

2010-01-01

13

Variable Neighborhood Search for the University Lecturer-Student Assignment Problem  

OpenAIRE

The paper presents a study of local search heuristics in general and variable neighborhood search in particular for the resolution of an assignment problem studied in the practical work of universities. Here, students have to be assigned to scientific topics which are proposed and supported by members of staff. The problem involves the optimization under given preferences of students which may be expressed when applying for certain topics. It is possible to observe that va...

Geiger, Martin Josef; Wenger, Wolf

2008-01-01

14

Assessment of Student Memo Assignments in Management Science  

Science.gov (United States)

Frequently in Management Science courses, instructors focus primarily on teaching students the mathematics of linear programming models. However, the ability to discuss mathematical expressions in business terms is an important professional skill. The authors present an analysis of student abilities to discuss management science concepts through…

Williams, Julie Ann Stuart; Stanny, Claudia J.; Reid, Randall C.; Hill, Christopher J.; Rosa, Katie Martin

2015-01-01

15

Engineering Students Write Science Books for Children (My Favorite Assignment).  

Science.gov (United States)

Describes a project in which engineering students wrote science books for children as part of a technical writing course focusing on how writers adapt to the audience. Discusses children's positive reactions to the books, and notes the engineering students' enthusiasm for the project. (MM)

Estrin, Herman A.

1992-01-01

16

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

17

Investigating the Manifestation of Textual Themes in Argumentative English Assignments Written by Iraqi and Australian Postgraduate Students  

Directory of Open Access Journals (Sweden)

Full Text Available This study investigated the manifestation of Textual Themes in argumentative English assignments written by Iraqi and Australian postgraduate students. Textual structure is a core component of argumentation in academic writing. How the themes in a text are organized as a message component constructs voice and authority. An important question is how novice writers and in particular international students are able to handle these textual devices when they write their English academic assignments. To this end, four academic assignments were selected and analysed to uncover the similarities and differences in textual features, and how students of different cultures stamp their authorial voice on the text through the element of theme and rheme in their academic arguments. The data were analysed based on Halliday’s (2004 model of thematic organization. The findings showed that the failure to use theme appropriately in constructing a voice and authority in academic writing may have disadvantaged the non-native writers. The paper argues that this has occurred because critical thinking requires a clear self-voice in forming an academic argument. This has not been explicitly emphasized in the writers’ Iraqi curriculum for writing. In contrast, these elements are more explicitly emphasized in the Australian writing curriculum.Keywords: English academic assignments; Iraqi non-native writers; Australian native writers; textual structure; voice and authority; thematic organization; critical thinking

Ali Jabbar Al BAKAA

2014-11-01

18

Influence of Assigned Reading on Senior Medical Student Clinical Performance  

OpenAIRE

OBJECTIVE: This Institutional Review Board-approved, prospective, observational study compared the clinical performance of senior medical students in an emergency medicine (EM) clerkship using a clinical behavioral evaluation tool in which one group had mandatory, topic specific readings and the other did not.METHODS: The study took place in an urban, tertiary referral center emergency department treating 43,000 patients annually and supporting medical student clerkships and an EM residency. ...

Hoffman, Lance; Bott, Kristine; Puumala, Susan; Shostrom, Valerie

2009-01-01

19

Peer Assignment Review Process for Collaborative E-learning: Is the Student Learning Process Changing?  

Directory of Open Access Journals (Sweden)

Full Text Available In recent years collaborative e-learning has been emphasized as a learning method that has facilitated knowledge construction and supported student learning. However some universities especially in developing country contexts are struggling to attain minimal educational benefits from its adoption and use. This paper investigates the application of a peer assignment review process for collaborative e-learning to third year undergraduate students. The study was aimed at evaluating the effect of the peer assignment review process on the student learning process. Data was collected using a survey questionnaire and analyzed using SPSS Version 16.0. While the student reported positive impact of the peer assignment review process in terms of facilitating students to put more effort and improve their work; quick feedback on their assignments; effective sharing and development of knowledge and information and the need of computer competence to manipulate the peer assignment review system, analysis of the quantitative data indicated that the process had limited effect on the learning process. This is attributed to lack of review skills, absence of lecturer scaffolding, low ICT literacy levels and change management.

Evelyn Kigozi Kahiigi

2013-01-01

20

5 CFR 575.504 - What requirements must an agency satisfy before authorizing the payment of an extended assignment...  

Science.gov (United States)

...extended assignment incentives; (b) The categories of employees which are prohibited...extended assignment incentive; (c) The criteria...determining the size of an incentive; (d) The requirements...the agency and the employee when the...

2010-01-01

21

Adaptive System for Assigning Reliable Students’ Letter Grades—A Computer Code  

OpenAIRE

The availability of automated evaluation methodologies that may reliably be used for determining students’ scholastic performance through assigning letter grades are of utmost practical importance to educators, students, and do invariably have pivotal values to all stakeholders of the academic process. In particular, educators use letter grades as quantification metrics to monitor students’ intellectual progress within a framework of clearly specified learning objectives of a course. To s...

Alghamdi, Saeid A.

2010-01-01

22

Adaptive System for Assigning Reliable Students’ Letter Grades—A Computer Code  

Directory of Open Access Journals (Sweden)

Full Text Available The availability of automated evaluation methodologies that may reliably be used for determining students’ scholastic performance through assigning letter grades are of utmost practical importance to educators, students, and do invariably have pivotal values to all stakeholders of the academic process. In particular, educators use letter grades as quantification metrics to monitor students’ intellectual progress within a framework of clearly specified learning objectives of a course. To students grades may be used as predictive measures and motivating drives for success in a study field. However due to numerous objective and subjective variables that may by be accounted for in a methodological process of assigning students’ grades, and since such a process is often tainted with personal philosophy and human psychology factors, it is essential that educators exercise extra care in maximizing positive account of all objective factors and minimizing negative ramifications of subjectively fuzzy factors. To this end, and in an attempt to make assigning students’ grades more reliable for assessing true-level of mastering specified learning outcomes, this paper will: i provide a literature review on previous works on the most common methods that have traditionally been in use for assigning students’ grades, and a short account of the virtues and/or vices of such methods, and ii present a user-friendly computer code that may be easily adapted for the purpose of assigning students’ grades. This would relieve educators from the overwhelming concerns associated with mechanistic aspects of determining educational metrics, and it would allow them to have more time and focus to obtain reliable assessments of true-level of students’ mastery of learning outcomes by accounting for all possible evaluation components.

Saeid A. Alghamdi

2010-10-01

23

Students, Please Turn to YouTube for Your Assignments  

Science.gov (United States)

Using the Flipped Classroom approach, the teacher "flips" the presentation of the material, the lesson, to non-class time by preparing a video that compresses the material and posting it on a website, such as YouTube, which the students can view at home or anywhere they choose. The teacher, in this case a Math teacher, is then free to use…

Johnson, Graham

2012-01-01

24

The Impact of Color-Coding Freshmen Integrated-Science Assignments on Student Achievement  

Science.gov (United States)

Students in Grade 9 exhibit high rates of grade retention and absenteeism. Educators have used different strategies that will increase the achievement of those students. The purpose of this study was to determine whether a relationship existed between student achievement and the strategy to use colored paper for Grade 9 science assignments and tests. Itten's color theory provided the theoretical framework. Itten was one of the first researchers to explore the notion that the human eye can detect wavelengths as colors and that those colors can engage and create order in the human brain. A sample of students assigned to 4 classroom teachers at one high school who volunteered to take part in the study for 18 weeks were used in this quantitative study. Teachers administered student assessments on blue, green, yellow, and white paper. Each class was assigned 1 of the 4 colors for 4.5 weeks. The classes were then assigned a different color for the same length of time until each class had exposure to all 4 colors. Physical science exams given to students in the same grade or subject were used as the dependent variable. An ANOVA indicated that the groups using blue paper scored the highest on the physical science exams; students who used white paper earned the lowest scores. When comparing all 3 groups using colored paper (all three colored paper groups combined into one group) to the white paper groups, t-test results indicated that students using any colored paper scored higher than students using white paper. Further research on the impact of colored paper on student academic performance is necessary. Implications for positive social change indicate that new knowledge about instructional tools that impact student achievement deserves more attention.

Sturdivant Allen, Anita Kay

25

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

26

Peer Assignment Review Process for Collaborative E-learning: Is the Student Learning Process Changing?  

OpenAIRE

In recent years collaborative e-learning has been emphasized as a learning method that has facilitated knowledge construction and supported student learning. However some universities especially in developing country contexts are struggling to attain minimal educational benefits from its adoption and use. This paper investigates the application of a peer assignment review process for collaborative e-learning to third year undergraduate students. The study was aimed at evaluating the effect of...

Evelyn Kigozi Kahiigi; Mikko Vesisenaho; Tusubira, F. F.; Henrik Hansson; Mats Danielson

2013-01-01

27

Peer Assignment Review Process for Collaborative E-learning : Is the Student Learning Process Changing?  

OpenAIRE

In recent years collaborative e-learning has been emphasized as a learning method that has facilitated knowledge construction and supported student learning. However some universities especially in developing country contexts are struggling to attain minimal educational benefits from its adoption and use. This paper investigates the application of a peer assignment review process for collaborative e-learning to third year undergraduate students. The study was aimed at evaluating the effect of...

Kahiigi Kigozi, Evelyn; Vesisenaho, Mikko; Tusubira, F. F.; Hansson, Henrik; Dainelson, Mats

2012-01-01

28

The Architecture of Peer Assessment: Do Academically Successful Students Make Good Teammates in Design Assignments?  

Science.gov (United States)

This paper considers the relationship between architecture and construction management students' overall academic abilities (as measured by Weighted Average Marks [WAMs]), their peer ratings for contributions to team design assignments (as measured by an online Self-and-Peer-Assessment [SAPA] tool), and their specific abilities as building…

Tucker, Richard

2013-01-01

29

Variable Neighborhood Search for the University Lecturer-Student Assignment Problem  

CERN Document Server

The paper presents a study of local search heuristics in general and variable neighborhood search in particular for the resolution of an assignment problem studied in the practical work of universities. Here, students have to be assigned to scientific topics which are proposed and supported by members of staff. The problem involves the optimization under given preferences of students which may be expressed when applying for certain topics. It is possible to observe that variable neighborhood search leads to superior results for the tested problem instances. One instance is taken from an actual case, while others have been generated based on the real world data to support the analysis with a deeper analysis. An extension of the problem has been formulated by integrating a second objective function that simultaneously balances the workload of the members of staff while maximizing utility of the students. The algorithmic approach has been prototypically implemented in a computer system. One important aspect in t...

Geiger, Martin Josef

2008-01-01

30

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

31

A Writing Assignment For Astr 101 Students Inspired By The "Visions Of The Universe" Exhibit  

Science.gov (United States)

The "Visions of the Universe" exhibit was created by the American Library Association, Space Telescope Science Institute and the Smithsonian Astrophysical Observatory to celebrate the International Year of Astronomy. The exhibit consists of 12 posters. Smaller versions of the posters can be downloaded from http://amazing-space.stsci.edu/visions/ for use at institutions that were not part of the exhibit display. We arranged to display these smaller versions at Joliet Junior College. To encourage ASTR 101 and Life in the Universe students to expand their interest in astronomy via these posters, in Spring 2010 we designed a short essay assignment that counted as one homework. This assignment involved exploring a poster topic further via the internet. In addition to learning about the topic, students were asked to critique the webpage they chose as their reference, and to recommend whether or not their chosen webpage would be a suitable resource for non-science majors. We will provide details of the assignment, and report on which exhibit topics were most popular, which websites students referred to and which they recommended for introductory astronomy courses.

D'Cruz, Noella L.

2011-01-01

32

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

33

Impact of reflective writing assignments on dental students' views of cultural competence and diversity.  

Science.gov (United States)

To respond to widespread disparities in access to oral health care, the Institute of Medicine, the Commission on Dental Accreditation (CODA), and the U.S. surgeon general have stressed that prospective dentists should become culturally competent, socially responsible practitioners. The aim of this study was to examine linguistic differences in dental students' reflective writing assignments before and after interviewing an individual who was culturally different from themselves. The authors analyzed 160 documents from 80 first-year dental students at the University of Florida in 2012. This cohort consisted of 36 male (45%) and 44 female (55%) students; 26 (32%) were from underrepresented minority (URM) groups and 54 (68%) were identified as white non-minority. Text analysis software identified word counts, categories, frequencies, and contexts. Significantly positive differences occurred for interviews between assignments 1 and 2 (p=0.005 to pgender (p=0.041), suggesting that males may have experienced a rebound effect from stereotype suppression. The findings suggest that the use of reflective writing and interviews affected the students' awareness of how important others had influenced their lives and attitudes and facilitated their questioning preconceived assumptions. Reactions to coursework focusing on social and personal domains warrant further investigation. PMID:25729025

Isaac, Carol; Behar-Horenstein, Linda; Lee, Barbara; Catalanotto, Frank

2015-03-01

34

Petrographic Problem Solving Assignments  

Science.gov (United States)

Petrographic problem-solving (PPS) assignments consist of a series of two-week mini-projects used within the context of an undergraduate petrology course. The central idea behind PPS assignments is for students to use thin sections as a geologic data source for conducting authentic scientific investigations. For each assignment, students are provided a thin section and corresponding hand sample. Drawing from their initial observations and foundation knowledge, students identify a scientific question, propose a working hypothesis to explain it, test the hypothesis using observations and data collected from the sample, and defend their results in oral presentations and written reports. They use digital cameras interfaced with microscopes to acquire photomicrographs and various software applications to collect and analyze data. For each assignment, students prepare a two-page paper and give a brief presentation to the class (5-10 minutes in duration with 3-5 minutes for discussion). During the presentation sessions, which each require a two-hour class period, class members are encouraged to question their student colleagues. Students are introduced to PPS assignments as part of the take-home final in the prerequisite Microscopy course. Three PPS assignments are in turn engaged in the subsequent Petrology course during the 10-week term. A summative take-home PPS exercise is completed as part of the final exam. In Petrology, PPS assignments augment more traditional laboratory exercises and are specifically aligned with course content, as follows (refer to student handout sheets in supplemental materials section). Using a set of rocks representing distinct lithologies, students are guided to think about what geologic conditions and/or environment the sample formed in. Using a set of plutonic and volcanic rocks from a description and classification exercise, students define their own geologic problem. Using a set of metamorphic rocks, students are instructed to interpret the genetic conditions based on textures and/or mineralogy. Using several different andesite samples, students are directed to consider the origin of the sample in context of a case-study activity conducted during the term. This PPS assignment is completed as part of the final exam and requires a summative two-page paper. In the context of a broad-based undergraduate Earth Science degree program, PPS assignments engage students in the study of Earth materials, actively involve them in the scientific process, and emphasize creative problem solving rather than factual recall.

Jeffrey Templeton

35

Assigning Student Leaders: Decreasing Interruptions during Teacher-Led Small-Group Instruction  

Science.gov (United States)

The authors used a withdrawal design to evaluate an intervention designed to decrease interruptions during small-group instruction in a Kindergarten class. A new rule was put into place; during teacher-led small-group instruction, those not in the small group were required to address questions to designated student leaders, as opposed to…

Coles, Jeremy T.; Skinner, Christopher H.; Best, Tiffany L.; Wood, Allison; Luna, Elisa; Adcock, Wes

2013-01-01

36

Single-Sex Schools, Student Achievement, and Course Selection: Evidence from Rule-Based Student Assignments in Trinidad and Tobago. NBER Working Paper No. 16817  

Science.gov (United States)

Existing studies on single-sex schooling suffer from biases due to student selection to schools and single-sex schools being better in unmeasured ways. In Trinidad and Tobago students are assigned to secondary schools based on an algorithm allowing one to address self-selection bias and cleanly estimate an upper-bound single-sex school effect. The…

Jackson, C. Kirabo

2011-01-01

37

Promoting Clinical Knowledge, Skills, and Empathy via a Creative Self-Suicide Assignment: Rationale, Purpose, and Student Responses  

Science.gov (United States)

Suicide is a leading cause of American deaths. Given suicide's overall frequency and negative effects, specialized suicide training is warranted. This article describes a creative self-suicide assignment designed to enhance doctoral students' suicide assessment and intervention knowledge and clinical skills, and promote greater counselor empathy…

Cook, Katrina; Juhnke, Gerald A.; Peters, Scott W.; Marbach, Christina R.; Day, Sally; Choucroun, Pierre; Baker, Ria E.

2007-01-01

38

Requiring Students To Have Computers: Questions for Consideration.  

Science.gov (United States)

Examines issues medical schools must consider before requiring students to own computers, including appropriate kind of computer, impediments to teaching with computers, and how they are to be used. Data from a study of 15 medical schools that require computers, surveyed information on software, hardware requirements, expectations of student use,…

McAuley, Robert J.

1998-01-01

39

Empirical Selection of Informative Microsatellite Markers within Co-ancestry Pig Populations Is Required for Improving the Individual Assignment Efficiency.  

Science.gov (United States)

The Lanyu is a miniature pig breed indigenous to Lanyu Island, Taiwan. It is distantly related to Asian and European pig breeds. It has been inbred to generate two breeds and crossed with Landrace and Duroc to produce two hybrids for laboratory use. Selecting sets of informative genetic markers to track the genetic qualities of laboratory animals and stud stock is an important function of genetic databases. For more than two decades, Lanyu derived breeds of common ancestry and crossbreeds have been used to examine the effectiveness of genetic marker selection and optimal approaches for individual assignment. In this paper, these pigs and the following breeds: Berkshire, Duroc, Landrace and Yorkshire, Meishan and Taoyuan, TLRI Black Pig No. 1, and Kaohsiung Animal Propagation Station Black pig are studied to build a genetic reference database. Nineteen microsatellite markers (loci) provide information on genetic variation and differentiation among studied breeds. High differentiation index (FST) and Cavalli-Sforza chord distances give genetic differentiation among breeds, including Lanyu's inbred populations. Inbreeding values (FIS) show that Lanyu and its derived inbred breeds have significant loss of heterozygosity. Individual assignment testing of 352 animals was done with different numbers of microsatellite markers in this study. The testing assigned 99% of the animals successfully into their correct reference populations based on 9 to 14 markers ranking D-scores, allelic number, expected heterozygosity (HE) or FST, respectively. All miss-assigned individuals came from close lineage Lanyu breeds. To improve individual assignment among close lineage breeds, microsatellite markers selected from Lanyu populations with high polymorphic, heterozygosity, FST and D-scores were used. Only 6 to 8 markers ranking HE, FST or allelic number were required to obtain 99% assignment accuracy. This result suggests empirical examination of assignment-error rates is required if discernible levels of co-ancestry exist. In the reference group, optimum assignment accuracy was achievable achieved through a combination of different markers by ranking the heterozygosity, FST and allelic number of close lineage populations. PMID:25049996

Li, Y H; Chu, H P; Jiang, Y N; Lin, C Y; Li, S H; Li, K T; Weng, G J; Cheng, C C; Lu, D J; Ju, Y T

2014-05-01

40

Requirements for traffic assignment models for strategic transport planning: a critical assessment:  

OpenAIRE

Transport planning models are used all over the world to assist in the decision making regarding investments in infrastructure and transport services. Traffic assignment is one of the key components of transport models, which relate travel demand to infrastructure supply, by simulating (future) route choices and network conditions, resulting in traffic flows, congestion, travel times, and emissions. Cost benefit analyses rely on outcomes of such models, and since very large monetary investmen...

Bliemer, M.; Raadsen, M.; Romph, E.; Smits, E.

2013-01-01

41

Required Course Gives Meredith College Students Global View  

Science.gov (United States)

In this article, the authors discuss how educators from Meredith College help college students gain a global awareness and take steps to be responsible global citizens. This is done by requiring all students to take a course that enables them to address a problem that has both global and local significance while using multiple disciplines and…

Tippett, Deborah T.; Roubanis, Jody L.

2006-01-01

42

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

43

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

44

Learning the requirements for compassionate practice: student vulnerability and courage.  

Science.gov (United States)

Student nurses' professional development arises through socialisation in nursing knowledge, values and behaviours. Students are expected to demonstrate compassion; however, compassion is a complex concept, one that creates emotional challenges. A grounded theory study was undertaken to explore student nurse socialisation in compassionate practice. In-depth interviews were undertaken with 19 students in the north of England during 2009-2010, and their concerns and concern management emerged. Students expressed several concerns, one being their emotional vulnerability and uncertainty of the emotional requirements for compassionate practice. A core category of 'balancing future intentions' was identified: that students managed feelings of vulnerability and uncertainty through balancing their intentions towards and away from engagement in compassionate practice, depending upon perceived impact on their emotional well-being. The findings are discussed in relation to emotional labour and moral distress, and courage, resilience and self-compassion are explored as a means to enable sustainable compassionate practice. PMID:23515253

Curtis, Katherine

2014-03-01

45

25 CFR 36.100 - Are there minimum requirements for student attendance checks?  

Science.gov (United States)

...minimum requirements for student attendance checks? 36.100 Section...INTERIOR EDUCATION MINIMUM ACADEMIC STANDARDS FOR THE BASIC...minimum requirements for student attendance checks? Yes, there are minimum requirements for student attendance checks as follows:...

2010-04-01

46

Grouped to Achieve: Are There Benefits to Assigning Students to Heterogeneous Cooperative Learning Groups Based on Pre-Test Scores?  

Science.gov (United States)

Cooperative learning has been one of the most widely used instructional practices around the world since the early 1980's. Small learning groups have been in existence since the beginning of the human race. These groups have grown in their variance and complexity overtime. Classrooms are getting more diverse every year and instructors need a way to take advantage of this diversity to improve learning. The purpose of this study was to see if heterogeneous cooperative learning groups based on student achievement can be used as a differentiated instructional strategy to increase students' ability to demonstrate knowledge of science concepts and ability to do engineering design. This study includes two different groups made up of two different middle school science classrooms of 25-30 students. These students were given an engineering design problem to solve within cooperative learning groups. One class was put into heterogeneous cooperative learning groups based on student's pre-test scores. The other class was grouped based on random assignment. The study measured the difference between each class's pre-post gains, student's responses to a group interaction form and interview questions addressing their perceptions of the makeup of their groups. The findings of the study were that there was no significant difference between learning gains for the treatment and comparison groups. There was a significant difference between the treatment and comparison groups in student perceptions of their group's ability to stay on task and manage their time efficiently. Both the comparison and treatment groups had a positive perception of the composition of their cooperative learning groups.

Werth, Arman Karl

47

Developing International Managerial Skills through the Cross-Cultural Assignment: Experiential Learning by Matching U.S.-Based and International Students  

Science.gov (United States)

This article describes the "Cross-Cultural Assignment," an experiential learning technique for students of business that deepens self-awareness of their own attitudes toward different cultures and develops international managerial skills. The technique consists of pairing up small teams of U.S.-based business students with small teams of…

Neiva de Figueiredo, Joao; Mauri, Alfredo J.

2013-01-01

48

42 CFR 57.208 - Health professions student loan promissory note and disclosure requirements.  

Science.gov (United States)

...false Health professions student loan promissory note and disclosure requirements. ...208 Health professions student loan promissory note and disclosure requirements. (a) Promissory note form. Each health...

2010-10-01

49

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.

David Kendrick

50

Drafting and acting on feedback supports student learning when writing essay assignments  

Science.gov (United States)

A diverse student population is a relatively recent feature of the higher education system in the United Kingdom. Consequently, it may be thought that more "traditional" types of assessment based around essay writing skills for science undergraduates may be of decreasing value and relevance to contemporary students. This article describes a study in which the process of feedback on, and associated redrafting of, an essay was closely supervised to improve essay writing skills and subsequent exam performance. The results of this study show that students can significantly improve their learning and academic performance, as assessed by final examination mark, by a process that more closely mimics a "real-world" situation of review and redrafting. Additionally, the data show that students benefit from feedback only when this is used appropriately by the student. The article also discusses the continuing importance and relevance of essay writing skills so that writing, and acting upon feedback to do with that writing, remains an integral part of the process of learning.

Nicholas Freestone (Kingston University)

2009-06-01

51

Student Workbook for Cooperative Education Preparation. A Required Course for LaGuardia Students Prior to Their First Internship.  

Science.gov (United States)

Designed for students enrolled in LaGuardia Community College's (LCC's) Cooperative Education Preparation class, this workbook contains readings, written assignments, and in-class activities which prepare the students to participate in internships. The workbook provides materials corresponding to the following class sections: (1) Understanding…

Koeppel, Jeffrey; Feifer, Dean Irwin

52

A standardized online clinical education and assessment tool for neurology clerkship students assigned to multiple sites.  

Science.gov (United States)

The Drexel neurology clerkship experience can vary from large groups at a university hospital inpatient unit to smaller groups at private physician offices. Evaluations are based on the site director's subjective assessment and performance on the National Board of Medical Examiners neurology shelf examination. We are developing a standardized online clinical neurology course and quiz for the whole clerkship. We piloted the course and quiz at a single site for one academic year and compared their test scores with a control group of students at other clerkship sites who took the online quiz without viewing the course. Students at the pilot site achieved higher scores both on the neurology shelf examination and the clinical quiz and also reported higher teaching satisfaction scores than students at all other sites. There was a 97 % participation rate in the online quiz from the other sites. Use of this online course and quiz provides effective standardized clinical neurology teaching and evaluation that can be applied to students across multiple sites. PMID:24307398

Holland, Neil R; Grinberg, Ilya; Tabby, David

2014-01-01

53

Developing a Rubric to Assess Student Learning Outcomes Using a Class Assignment  

Science.gov (United States)

We developed a rubric to assess several of our department's undergraduate student learning outcomes (SLOs). Target SLOs include applications of principles of research methodology, using appropriate statistics, adherence to the Publication Manual of the American Psychological Association, and written communication skills. We randomly sampled 20…

Thaler, Nicholas; Kazemi, Ellie; Huscher, Crystal

2009-01-01

54

Student Comprehension of Primary Literature is Aided by Companion Assignments Emphasizing Pattern Recognition and Information Literacy  

Science.gov (United States)

Primary literature is our main mode of communication in the sciences. As such, it is important for our undergraduates in the discipline to learn how to read primary literature. Incorporating primary literature into undergraduate science courses is often difficult because students are unprepared to comprehend primary articles. Learning to read and…

Shannon, Sarah; Winterman, Brian

2012-01-01

55

Postgraduate Diploma Collaborative Assignment: Implications for ESL Students and Curriculum Design  

Science.gov (United States)

The commerce faculty at the University of Cape Town (UCT) offers a 1-year, postgraduate management diploma that is regarded as a mini-MBA. It appeals to a wide variety of mainly English-as-second language (ESL) students. In the past, core course diploma lecturers in marketing, tourism and leisure, enterprise management and sport management "did…

Grant, T.

2008-01-01

56

Student Views on Short-Text Assignment Formats in Fully Online Courses  

Science.gov (United States)

Tertiary educators (and their institutions) are turning to technology to help meet increased demands in a changing environment. Assessment is one area where such moves are being made. This paper reminds us that assessment is more than a summative check on student knowledge and skills, it is an experience and part of the communication, and…

Earl, Kerry

2013-01-01

57

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

58

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

59

Nursing students' perceptions of their knowledge of lesbian, gay, bisexual, and transgender issues: effectiveness of a multi-purpose assignment in a public health nursing class.  

Science.gov (United States)

Nurses work with diverse populations, but the nursing literature lacks research, theoretical frameworks, or practice guidelines regarding lesbian, gay, bisexual, and transgender (LGBT) health. Through diverse teaching strategies, students explored issues related to LGBT patients, families, and nurses using a cultural humility lens. Diverse teaching strategies included readings, a 2-hour presentation on LGBT health issues, and an assignment to conduct a scripted interview with two nurse key informants, based on the Health Care Equality Index (HEI). Students completed an online LGBT awareness preinterview survey, completed interviews, and completed a postinterview survey. Students showed a significant increase in knowledge about sexual orientation and gender identity and research and interview methods from pretest to posttest. The diverse teaching strategies involved in this assignment can enhance student knowledge, attitudes, and skills related to LGBT health care needs and increase appreciation of nursing research. PMID:25545145

Carabez, Rebecca; Pellegrini, Marion; Mankovitz, Andrea; Eliason, Michele J; Dariotis, Wei Ming

2015-01-01

60

CORRELATION BETWEEN MARKS OBTAINED BY STUDENTS IN ASSIGNMENTS AND FINAL EXAMINATION OF MASTER OF EDUCATION CONDUCTED BY ALLAMA IQBAL OPEN UNIVERSITY  

Directory of Open Access Journals (Sweden)

Full Text Available The main objective of the research was to find out the correlation between the marks obtained by the students of Allama Iqbal Open University in assignments and final examination of M.A (Education M.Ed in Autumn 2006.For this purpose, the result gazette of M.A (Education M.Ed was got from regional campus Allama Iqbal Open University, Bahawalpur. All the students who appeared from this region were taken as sample. The value of correlation in the subject, Elementary Education was 0.228, in Secondary Education -0.033, in Higher Education was 0.069 and in Teacher Education in Pakistan was 0.154.There were 16 students who got more than 80 marks in assignments but they were fail in the final examination because they did not get at least 40 marks in the final examination.

Muhammad Ashraf MALIK

2007-04-01

61

Principals Make Assignments Matter  

Science.gov (United States)

The inner-city high school in Washington, DC, that Guillaume Gendre joined as an assistant principal had a modest reputation for achievement but was nevertheless challenged to raise expectations for student work. In other schools, Gendre had used assignments--a specific kind of instructional task in which students are charged to think about an…

Dougherty, Eleanor

2013-01-01

62

25 CFR 36.96 - May students be required to assist with daily or weekly cleaning?  

Science.gov (United States)

...required to assist with daily or weekly cleaning? 36.96 Section 36.96 Indians...required to assist with daily or weekly cleaning? Yes, students can be required to assist with daily or weekly cleaning. However, the ultimate...

2010-04-01

63

Student Endodontic Performance with and without Numerical Requirements.  

Science.gov (United States)

A study compared dental student performance in clinical endodontics under two instructional approaches, one in which number of procedures completed by students (n=79) was measured and one (n=84 students) emphasizing total patient care and stricter accounting of clinical treatment time. Results indicated the latter group treated fewer teeth but…

Lee, Charles Q.; And Others

1994-01-01

64

Scaffolding or stifling? The influence of journal requirements on students’ engagement in reflective practice  

OpenAIRE

This study aimed to examine student teachers’ opinions of changes to reflective practice requirements during a five?week teaching practice placement as part of a one?year postgraduate initial teacher education programme. The results highlighted that prior to the changes, students saw little relevance in the reflective writing requirements while on teaching placement. Students saw the new requirements as more beneficial as they provided them with more time to reflect and greater opportun...

Mcgarr, Oliver; Moody, Janet

2010-01-01

65

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, Mercè Pañellas

66

Does Failing a Placement Exam Discourage Underprepared Students from Going to College?  

Science.gov (United States)

About one third of college students are required to take remedial courses. Assignment to remediation is generally made on the basis of performance on a placement exam. When students are required to take a placement exam "prior" to enrolling in college-level courses, assignment to remediation may dissuade students from actually going to…

Martorell, Paco; McFarlin, Isaac, Jr.; Xue, Yu

2015-01-01

67

Business Etiquette (My Favorite Assignment).  

Science.gov (United States)

Describes an assignment for a business communication course in which students give an oral presentation on some aspect of business manners and etiquette, thus increasing their awareness of the impact of social graces on communication in the business setting. (SR)

Forbes, Cassie

1990-01-01

68

Student Personnel Problems Requiring a Campus-Wide Approach.  

Science.gov (United States)

Originally published in December 1961, discusses how the traditional organizational structure of colleges and universities has led to an artificial separation of duties for administrative purposes. While emphasizing that student personnel work has particularly suffered from this tendency, highlights significant problems facing higher education…

Shaffer, Robert H.

1999-01-01

69

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

70

Detecting Plagiarism in MS Access Assignments  

Science.gov (United States)

Assurance of individual effort from students in computer-based assignments is a challenge. Due to digitization, students can easily use a copy of their friend's work and submit it as their own. Plagiarism in assignments puts students who cheat at par with those who work honestly and this compromises the learning evaluation process. Using a…

Singh, Anil

2013-01-01

71

Using the Instructional Quality Assessment Toolkit to Investigate the Quality of Reading Comprehension Assignments and Student Work. CSE Report 669  

Science.gov (United States)

This study presents preliminary findings from research developing an instructional quality assessment (IQA) toolkit that could be used to monitor the influence of reform initiatives on students' learning environments and to guide professional development efforts within a school or district. This report focuses specifically on the portion of the…

Matsumura, Lindsay Clare; Slater, Sharon Cadman; Wolf, Mikyung Kim; Crosson, Amy; Levison, Allison; Peterson, Maureen; Resnick, Lauren; Junker, Brian

2006-01-01

72

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

73

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

OpenAIRE

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

74

Student Library Resource Requirements in Philadelphia. Evaluation Report, Phase IV, June 15, 1971 - June 30, 1972.  

Science.gov (United States)

Phase IV of the Student Library Resource Requirements Project had as its two main purposes: (1) the establishment of a student learning center demonstration, with the collaboration of school and public library organizations and to begin its operation and evaluation and (2) to expand the well-established interagency planning mechanism into other…

Benford, John Q.

75

Polynomial Assignments  

OpenAIRE

The concept of assignments was introduced in [GGK99] as a method for extracting geometric information about group actions on manifolds from combinatorial data encoded in the infinitesimal orbit-type stratification. In this paper we will answer in the affirmative a question posed in [GGK99] by showing that the equivariant cohomology ring of $M$ is to a large extent determined by this data.

Guillemin, Victor; Sabatini, Silvia; Zara, Catalin

2013-01-01

76

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

77

Assignment Choice, Effort, and Assignment Completion: Does Work Ethic Predict Those Who Choose Higher-Effort Assignments?  

Science.gov (United States)

After completing the Multidimensional Work-Ethic Profile (MWEP), 98 college students were given a 20-problem math computation assignment and instructed to stop working on the assignment after completing 10 problems. Next, they were allowed to choose to finish either the partially completed assignment that had 10 problems remaining or a new…

Parkhurst, John T.; Fleisher, Matthew S.; Skinner, Christopher H.; Woehr, David J.; Hawthorn-Embree, Meredith L.

2011-01-01

78

A descriptive study of the middle school science teacher behavior for required student participation in science fair competitions  

Science.gov (United States)

This descriptive study explores three aspects of teacher behavior related to student participation in science fair competitions: teacher attitudes, teacher preference for different student-learning modes, and teacher motives for required student participation. Teacher motives for required student participation may stem from curriculum and standardized test requirements, school administrators' expectations, teacher preference for a competitive student-learning mode, and teacher attitudes towards science fair competitions. Survey data collected for this study included teacher attitudes about science fair competitions, teacher preference for different student-learning modes, and demographic data about middle school teachers who sponsor students in PJAS science fair competitions. The theoretical framework in this study is the theory of planned behavior proposed by Ajzen. The results from the analysis of data in this study showed that the majority of the teachers in this sample held positive attitudes towards science fair competitions and required their students to conduct science fair projects but did not require their students to participate in science fair competitions. The middle school science teachers in the sample would involve their students in PJAS competitions even if their districts did not require them to participate. The teachers in this study preferred the cooperative and individualistic student-learning modes. Teacher gender did not influence a preference for a particular student-learning mode. Using the theoretical framework from this study revealed teachers who required their students to participate in science fair competitions also required their students to conduct science fair projects.

Fisanick, Laura M.

79

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

80

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  

Directory of Open Access Journals (Sweden)

Full Text Available 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 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.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

Victor F. Suarez Chilma

2013-03-01

81

Using Internet Sources to Solve Materials Homework Assignments  

Science.gov (United States)

Materials professors commonly ask homework questions derived from textbook readings, only to have students find the answers faster using internet resources such as Wikipedia or Google. While we hope students will actually read their textbooks, we can take advantage of student internet use to teach materials concepts. After graduation, these engineers will use the internet as a resource in their jobs, so it makes sense to use the internet in classroom exercises too. This paper discusses several materials homework assignments requiring internet research, and a few which require the textbook. Students learn that some answers are very difficult to find, and that accuracy is not guaranteed. Students also learn how materials data affect design, economics, and public policy.

Dupen, Barry

82

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

83

Pharmacy Students’ Attitudes About Treating Patients With Alcohol Addiction After Attending a Required Mutual Support Group  

Science.gov (United States)

Objective. To implement required attendance at mutual support groups for addiction recovery as a pharmacy skills laboratory exercise, and to evaluate how attendance affected pharmacy students’ attitudes about caring for patients with addiction. Design. Third-year (P3) pharmacy students enrolled in a Pharmacy Skills Laboratory course were required to watch an introductory video about Alcoholics Anonymous (AA) and then attend 2 “open meetings” during the semester. Students submitted a written reflection as proof of attendance. Assessment. Pharmacy students who agreed to participate in the study completed the Short Alcohol and Alcohol Problems Perception Questionnaire (SAAPPQ) during the course orientation and again at the end of the semester. Mutual support group attendance significantly affected the students’ attitudes within the domains of role adequacy, task specific self-esteem, and work satisfaction. Significant changes were not observed within the domains of motivation and role legitimacy. Conclusion. Mutual support group attendance exposed pharmacy students to the negative effects of alcohol abuse and increased their self-confidence to provide care to patients with alcohol addiction. PMID:24672072

2014-01-01

84

Number of Repetitions Required to Retain Single-Digit Multiplication Math Facts for Elementary Students.  

Science.gov (United States)

Computational fluency is an important aspect of math proficiency. Despite widely held beliefs about the differential difficulty of single-digit multiplication math facts, little empirical work has examined this issue. The current study analyzed the number of repetitions needed to master multiplication math facts. Data from 15,402 3rd, 4th, and 5th graders were analyzed using a national database. Results suggested that (a) students with lower math skills required significantly (p < .001) more repetitions than more skilled students; (b) across all students, single-digit multiplication facts with 4s, 5s, 6s, and 7s required significantly (p < .001) more repetition than did 2s and 3s; and (c) the number of practice sessions needed to attain mastery significantly (p < .001) decreased with increase in grade level. Implications for instructional planning and implementation are discussed. (PsycINFO Database Record (c) 2014 APA, all rights reserved). PMID:25420042

Burns, Matthew K; Ysseldyke, Jim; Nelson, Peter M; Kanive, Rebecca

2014-11-24

85

The practical training of students - x-ray technicians and requirements to mentors in clinical bases  

International Nuclear Information System (INIS)

Full text: Introduction: Training of X-ray technicians in Bulgaria takes place in the Medical Colleges to Medical Universities. It's purpose is providing professional training of students in the area of diagnostic imaging, nuclear medicine and radiotherapy. Practical training is based on the scientific and theoretical knowledge and skills and is organized in pedagogic environment, adequate to regularities for a gradual formation of practical skills and habits. The practical training and pre-graduation internship are performed in 1895 from total of 3810 hours, which represents about fifty percent of all training of X-ray technicians. Students are in groups of 2-4 students. Practical training is organized, accomplished and monitored by the teacher training practice with the help of a mentor in the clinical base. Purpose: To present the tasks of practical training of students - X-ray technicians and the requirements for the personal characteristics and activity of mentors. Materials and methods: Documentary method has been used. Literature and normative documents related to the practical training of students in 'X-ray technician' of Medical Colleges have been studied. The job descriptions of senior clinical X-ray technicians have been examined carefully. Results: By analyzing literature sources, we have structured the tasks of practical training and pre-graduation internship of students - X-ray technicians, also we have described the requirements for personal qualities o the requirements for personal qualities of mentors and systematize the activities they perform. Conclusion: Practical training plays an important role in adaptation of young X-ray technicians to the conditions of medical work, improving their skills and habits, and to the development of specific practical skills for being able to respond to emergency conditions and to solve complicated practical situations. The mentor is the supervisor and the controller of interns who helps this happen through his own example, qualities and attitudes towards the profession and students

86

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

87

Studying Student Benefits of Assigning a Service-Learning Project Compared to a Traditional Final Project in a Business Statistics Class  

Science.gov (United States)

The present study addresses the efficacy of using service-learning methods to meet the GAISE guidelines (http://www.amstat.org/education/gaise/GAISECollege.htm) in a second business statistics course and further explores potential advantages of assigning a service-learning (SL) project as compared to the traditional statistics project assignment.…

Phelps, Amy L.; Dostilio, Lina

2008-01-01

88

¿QUÉ ESCRIBEN LOS ESTUDIANTES DE POSGRADO? TIPOS DE TEXTOS SOLICITADOS EN SEMINARIOS / WHAT DO GRADUATE STUDENTS WRITE? TYPES OF TEXTS ASSIGNED IN SEMINARS / O QUE OS ESTUDANTES DE PÓS-GRADUAÇÃO ESTÃO ESCREVENDO? GÊNEROS TEXTUAIS SOLICITADOS EM SEMINÁRIOS  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: Spanish Abstract in portuguese O tema "gêneros textuais solicitados aos alunos em seus cursos universitários" tem sido objeto de várias pesquisas, mas poucas se centram no nível de pós-graduação. Neste trabalho, mediante uma enquete realizada a 118 participantes, indagamos o ponto de vista dos estudantes de mestrados e doutorados [...] em diversas disciplinas. Os resultados mostram que existem diferenças entre programas das faculdades de artes, humanas e ciências sociais; engenharia e tecnologia da informação, ciências naturais e matemática. À exceção do abstract ou do resumo, os textos frequentemente solicitados divergem daqueles que se escreverão uma vez finalizados os estudos. Além disso, ressalta-se a pouca frequência com que se pedem artigos para revistas científicas (principal tipo de escrito que se utiliza em todas as disciplinas). Estudos como o proposto aqui podem impulsionar futuras pesquisas sobre os programas de pós-graduação e sua articulação com o âmbito profissional ou acadêmico. Abstract in spanish El tema "tipos de textos solicitados a los alumnos en sus carreras universitarias" ha sido objeto de varias investigaciones, pero pocas se han centrado en el nivel de posgrado. En este trabajo, mediante una encuesta hecha a 118 participantes, indagamos el punto de vista de los estudiantes de maestrí [...] as y doctorados en diversas disciplinas. Los resultados muestran que existen diferencias entre programas de las facultades de artes, humanidades y ciencias sociales; ingeniería y tecnología de la información, y ciencias naturales y matemáticas. A excepción del abstract o resumen, los textos frecuentemente solicitados divergen de aquellos que se escribirán una vez finalizados los estudios. Resalta la poca frecuencia con que se piden artículos para revistas científicas (principal tipo de escrito que se utiliza en todas las disciplinas). Estudios como el aquí propuesto pueden impulsar futuras investigaciones sobre los programas de posgrado y su articulación con el ámbito profesional o académico. Abstract in english The issue of "types of texts assigned to university students" has been the object of several research projects; however, few of them focus on the graduate level. This particular project carried out an inquiry into the points of view of Master's and PhD students from diverse disciplines, through a su [...] rvey in which 118 students participated. Results show differences depending on whether the programs belong to the schools of arts, humanities, and social sciences; engineering and information technology; or natural sciences and mathematics. With the exception of abstracts, the texts usually required of the students are different form those they will write upon completion of their studies. Articles for scientific journals (the main type of text used in all disciplines) are rarely assigned. A study such as this one may foster future research on graduate programs and their connection to the professional or academic field.

Laura, Colombo; Jusmeidy, Zambrano.

2013-12-01

89

"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

90

Sequenced writing assignment  

Science.gov (United States)

This is a term paper submitted as a series of iterations over the course of a semester. Students, with guidance from the professor, select a region and find papers in the literature describing geophysical data and interpreted results. Each iteration adds a new set of geophysical data (following the sequence covered in the course) and the students gradually build a geophysical cross section across their region of interest. What is effective about this assignment is that it both exposes student to current literature and allows them to compare/contrast the results derived from different geophysical techniques in the same area. This exposes students to the advantages and trade-offs between different techniques, and how combinations of geophysical data are more effective at illuminating crustal properties than any individual technique alone. It also reinforces one of the basic concepts I emphasize in the lecturesthat variation in physical characteristics (density, magnetic susceptibility, seismic velocity, etc.) between sandstone/basalt/granite can be used to characterize them. Has minimal/no quantitative component

Steven Jaume

91

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

92

Judge Ruled in Favor of UNC Chapel Hillâ??s Qur'án Assignment  

Science.gov (United States)

On Thursday, a federal judge refused to grant a temporary restraining order to prohibit a requirement that incoming freshmen and transfer students at the University of North Carolina (UNC) at Chapel Hill read and discuss a book about the Koran. Plaintiffs in the lawsuit argued that the book --_Approaching the Qur'án: The Early Revelations_, by Michael Sells, a professor of religion at Haverford College -- violated the church-state separation required by the US Constitution. The American Civil Liberties Union (ACLU) has leapt to the universityâ??s defense, and they, along with university officials, assert that the assignment was purely about "intellectual engagement and critical thinking."The University, which annually assigns a book for all incoming freshmen to read, assigned this book in May to all freshmen and transfer students to read over the summer in preparation for a two-hour discussion session scheduled for the beginning of the fall semester. Students were also asked to complete a one-page writing assignment based on their understanding and interpretation of the book. Students not wanting to read the book may opt out of the discussion by writing a one-page essay explaining their objections to the assignment. For more information regarding this story, users may access the first four news links above. The fifth site by FindLaw contains a list of links to legal information sites, and the last two links lead to official Web pages of the UNC Chapel Hill and ACLU, respectively.

Green, Marcia.

2002-01-01

93

Student Library Resource Requirements in Philadelphia; Supplement: Selected Materials Covering Planning Activities Leading to the Concept and Outline of a Student Learning Center Demonstration.  

Science.gov (United States)

A selection of written materials which reflect the dynamics of the planning process is reported in this special supplement to the "Student Library Resource Requirements in Philadelphia, Phase III," report (available as LI 003327). Its contents include: (1) project staff; (2) organization - student library research project; (3) organization -…

Benford, John Q.

94

Impact of a required fourth-year medical student rotation in physical medicine and rehabilitation.  

Science.gov (United States)

This study evaluated the impact of a 2-wk required rotation in Physical Medicine and Rehabilitation (PM&R) on fourth-year medical students' knowledge of PM&R and attitude toward teamwork in patient care. Survey results on attitudes toward a team approach to patient care and knowledge in PM&R were compared prerotation and postrotation. One hundred thirty-eight fourth-year medical students participated in this 2-yr study. The combined response rates for the attitude and knowledge surveys were 62% and 56%, respectively. As measured by a pretest and posttest self-reported knowledge assessment, the rotation increased knowledge of PM&R (P ? 0.05). Four aspects of the rotation that were rated higher by students from the second year of the rotation were role and responsibility definition, incorporation of current literature, enhancement of clinical skills, and general rotation satisfaction. The rotation provides an experience for medical students to increase their knowledge of PM&R. PMID:22377823

Faulk, Clinton E; Mali, Jimmy; Mendoza, Paola Maria; Musick, David; Sembrano, Roderick

2012-05-01

95

Introduction of CAA into a mathematics course for technology students to address a change in curriculum requirements  

OpenAIRE

The mathematical requirements for engineering, science and technology students has been debated for many years and concern has been expressed about the mathematical preparedness of students entering higher education. This paper considers a mathematics course that has been specifically designed to address some of these issues for technology education students. It briefly chronicles the changes that have taken place over its lifetime and evaluates the introduction of Computer Assisted Assessmen...

Pollock, M. J.

2002-01-01

96

Understanding the Negative Graduate Student Perceptions of Required Statistics and Research Methods Courses: Implications for Programs and Faculty  

Science.gov (United States)

The authors of this study endeavor to explore the negative opinions and perceptions of graduate students in business and social science programs, regarding their required statistics and research methods courses. The general sense of instructors of such courses is that students dread and resent having to take courses dealing with statistics and…

Coleman, Charles; Conrad, Cynthia

2007-01-01

97

The Effectiveness of Data-Based Instruction by Student Teachers in Classrooms for Students with Mild Learning Handicaps.  

Science.gov (United States)

This study sought to determine whether or not student teachers who were trained and required to use a data-based problem-solving approach in their practicum classrooms would obtain higher levels of pupil achievement in reading and mathematics than student teachers who did not receive the training. Student teachers (N=23) were randomly assigned to…

Jones, Eric D.; Krouse, James P.

98

The Business Alcove: Library Resources for Students of Commercial French.  

Science.gov (United States)

Describes two research assignments designed to develop business skills in a college commercial French course. The assignments required students to use reference works in the business section of the library and to do a project on one corporation doing business in France. An annotated bibliography on multinational corporations is included. (SED)

Fairchild, Sharon L.

1986-01-01

99

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

100

How to Improve the Peer Review Method: Free-Selection vs Assigned-Pair Protocol Evaluated in a Computer Networking Course  

Science.gov (United States)

This study provides field research evidence on the efficiency of a "free-selection" peer review assignment protocol as compared to the typically implemented "assigned-pair" protocol. The study employed 54 sophomore students who were randomly assigned into three groups: Assigned-Pair (AP) (the teacher assigns student works for review to student

Papadopoulos, Pantelis M.; Lagkas, Thomas D.; Demetriadis, Stavros N.

2012-01-01

101

"An Ode to That Distillation Tower" and Other Poetry: A Creative Writing Assignment.  

Science.gov (United States)

Discusses short, informal student writing assignments in chemical engineering designed to reinforce chemical engineering concepts relevant to course material, promote creative thinking, and lighten more serious students. (MKR)

Rorrer, Gregory L.

1996-01-01

102

Consideration of criteria required for assignment of a (skin) sensitiser a substance of very high concern (SVHC) under the REACH regulation.  

Science.gov (United States)

The identification, characterisation, risk assessment and risk management of materials that cause allergic sensitisation is an important requirement for human health protection. It has been proposed that for some chemical and protein allergens, and in particular for those that cause sensitisation of the respiratory tract (associated with occupational asthma), it may be appropriate to regard them as Substances of Very High Concern (SVHC) under the provisions of REACH (Registration, Evaluation, Authorisation and restriction of CHemicals). We have argued previously that categorisation of sensitising agents as SVHC should be used only in exceptional circumstances. In the present article, the subject of SVHC is addressed from another perspective. Here the information that would be required to provide a compelling case for categorisation of a skin sensitising substance as a SVHC is considered. Three skin sensitising chemicals have been identified to serve as working examples. These are chromate, a potent contact allergen, and the skin sensitisers formaldehyde and isoeugenol. The key criterion influencing the decision regarding a skin sensitiser being categorised as SVHC is the extent to which impacts on the quality of life are reversible. Consequently, SVHC categorisation for skin sensitising chemicals should be used only in exceptional circumstances. PMID:24893346

Basketter, David; Kimber, Ian

2014-08-01

103

From Animal Farm to Fables – Elements of a Fable Writing Assignment  

Science.gov (United States)

The purpose of this lesson is to provide a culminating assignment after reading the classic novel Animal Farm by George Orwell (1370 Lexile). Shortly after finishing the novel, students will read famous fables and identify how each, including the novel Animal Farm, meet the requirements. Finally, the students will then apply these elements by writing their own fables that include all of the necessary characteristics. This will not only help students build their own creativity, but it will allow application of the lesson and develop writing skills further.

Kris Ryan

2012-07-22

104

Description and Students’ Perceptions of a Required Geriatric Clerkship in Post-Acute Rehabilitative Care  

OpenAIRE

This article describes medical students’ evaluation of a geriatric clerkship in post-acute rehabilitative care settings. This was a cross sectional study of fourth-year medical students who completed a mandatory 2-week rotation at a post-acute care facility. Students were provided with three instructional methods: 1) Web-based interactive learning modules; 2) Small group sessions with Geriatric faculty; and 3) Geriatric Interdisciplinary Care Summary (GICS), a grid that students used to for...

Bautista, Miho K.; Meuleman, John R.; Shorr, Ron I.; Beyth, Rebecca J.

2009-01-01

105

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

Science.gov (United States)

...receive a LEAP Grant under GAP if the student— ...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

106

Student Directed Learning: An Online Exhibition for a Historic Costume Collection  

Science.gov (United States)

This article highlights the structure, procedures, and outcomes of a course organized using a student-directed learning approach to develop an online exhibition website as an outcome for a client. The teaching strategy required students to work in teams and carefully plan assignments to build on the development of the exhibition. Students said…

Saiki, Diana; Nam, Jinhee; Beck, Jessica

2012-01-01

107

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

108

Considerations when Teaching Students Who Are Deaf-Blind. PEPNet Tipsheet  

Science.gov (United States)

When a student who has both a vision and a hearing loss registers to take a course, each component of the course will need to be reviewed to determine if the student requires accommodations, e.g. syllabus, handouts, overheads or other AV materials, exams, and paper assignments. There is not a formula for addressing these needs because students who…

Jordan, Beth

2001-01-01

109

Self-expression assignment as a teaching approach to enhance the interest of Kuwaiti women in biological sciences  

Science.gov (United States)

Stimulating the interest of students in biological sciences necessitates the use of new teaching methods and motivating approaches. The idea of the self-expression assignment (SEA) has evolved from the prevalent environment at the College for Women of Kuwait University (Safat, State of Kuwait), a newly established college where the number of students is low and where students have varied backgrounds and interests and are being instructed biological sciences in English for the first time. This SEA requires each student to choose a topic among a long list of topics and interact with it in any way to produce a finished product without the interference of the course instructor. Students are told that the SEA will be graded based on their commitment, creative thinking, innovation in developing the idea, and finishing up of the chosen assignment. The SEA has been implemented in three introductory courses, namely, Biology, Introduction to Human Nutrition and Food Science, and The Human Body. Many interesting projects resulted from the SEA, and, based on an administered survey, students assessed this assignment very favorably. Students expressed their pleasure of experiencing freedom in choosing their own topics, interacting with such topics, learning more about them, and finishing up their projects. Students appreciated this type of exposure to biological sciences and expressed that such an experience enhanced their interest in such sciences.

Farouk El-Sabban (Kuwait University College for Women- Department of Family Sciences)

2008-06-01

110

Function-Space Assignment for Educational Facilities?  

Directory of Open Access Journals (Sweden)

Full Text Available Function-space assignment, which allocates a function for each space in a facility, is one of the most important factors in determining the usability performance of a facility. An educational facility is often used through activity participation of different groups such as faculty or construction management graduate students. Members of a group participate in the same activities but with different behaviors (e.g., attendance rate, arrival time. This research uses two modules to optimize the function space assignment. The first module uses simulation technique to randomly generate activity data to accommodate the uncertain nature of activities. The second module uses the fmGA to optimize the function-space assignment. This paper also presents a real case study to demonstrate the use of the proposed model and compares its assignments with those generated by a renovation architect. The result shows a 14.80% higher objective value than the architect's version.

Ren-Jye Dzeng

2013-04-01

111

Fleet Assignment Using Collective Intelligence  

Science.gov (United States)

Product distribution theory is a new collective intelligence-based framework for analyzing and controlling distributed systems. Its usefulness in distributed stochastic optimization is illustrated here through an airline fleet assignment problem. This problem involves the allocation of aircraft to a set of flights legs in order to meet passenger demand, while satisfying a variety of linear and non-linear constraints. Over the course of the day, the routing of each aircraft is determined in order to minimize the number of required flights for a given fleet. The associated flow continuity and aircraft count constraints have led researchers to focus on obtaining quasi-optimal solutions, especially at larger scales. In this paper, the authors propose the application of this new stochastic optimization algorithm to a non-linear objective cold start fleet assignment problem. Results show that the optimizer can successfully solve such highly-constrained problems (130 variables, 184 constraints).

Antoine, Nicolas E.; Bieniawski, Stefan R.; Kroo, Ilan M.; Wolpert, David H.

2004-01-01

112

Fair Package Assignment  

Science.gov (United States)

We consider the problem of fair allocation in the package assignment model, where a set of indivisible items, held by single seller, must be efficiently allocated to agents with quasi-linear utilities. A fair assignment is one that is efficient and envy-free. We consider a model where bidders have superadditive valuations, meaning that items are pure complements. Our central result is that core outcomes are fair and even coalition-fair over this domain, while fair distributions may not even exist for general valuations. Of relevance to auction design, we also establish that the core is equivalent to the set of anonymous-price competitive equilibria, and that superadditive valuations are a maximal domain that guarantees the existence of anonymous-price competitive equilibrium. Our results are analogs of core equivalence results for linear prices in the standard assignment model, and for nonlinear, non-anonymous prices in the package assignment model with general valuations.

Lahaie, Sébastien; Parkes, David C.

113

Feedback for Web-based Assignments.  

Science.gov (United States)

Discusses a concept used at the University of Twente based on increased flexibility in learning options and the active student in which there are assignments submitted and monitored via a Web-based course management system. Outlines conceptual aspects of feedback as part of the assessment process, particularly feedback supported by a Web-based…

Collis, Betty; De Boer, W.; Slotman, K.

2001-01-01

114

A Photographic Assignment for Abstract Algebra  

Science.gov (United States)

We describe a simple photographic assignment appropriate for an abstract algebra (or other) course. Students take digital pictures around campus of various examples of symmetry. They then classify these pictures according to which of the 17 plane symmetry groups they belong. (Contains 2 figures.)

Warrington, Gregory S.

2009-01-01

115

The Civic Awareness and Imagination Assignment  

Science.gov (United States)

There exists a natural connection between civic engagement and the public speaking class. Too often, however, this connection remains indirect at best and lost in a sea of uninspired topic selections and convenient source cites at worst. This assignment offers one way to help public speaking students increase their civic awareness and imagination…

Engen, David E.

2005-01-01

116

On Online Assignments in a Calculus Class  

Science.gov (United States)

In this paper, we describe our experience with the creation and utilization of online assignments for several calculus classes at Simon Fraser University (SFU). We present our findings regarding available software by considering the needs and perspectives of the instructors, students, and administrators. We provide a list of questions that guide…

Jungic, Veselin; Kent, Deborah; Menz, Petra

2012-01-01

117

Enhanced eigenstructure assignment for aeroelastic control application  

OpenAIRE

Regarding the regulation of weakly damped aeroelastic structures by means of the primary flight controls (PFC), the present contribution focusses on a sophisticated robust controller design method, to achieve the required functionality. Generally, the outlined approach is premised on eigenstructure assignment. Enhancements promise effective integration of miscellaneous potentially competing objective specifications either in time or frequency domain as well as parametric requirements. Due to ...

Merkel, Maximilian; Gojny, Marcus H.; Carl, Udo B.

2002-01-01

118

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

119

Calibrated peer review assignments for the earth sciences  

Science.gov (United States)

Calibrated Peer Review ??? (CPR), a web-based instructional tool developed as part of the National Science Foundation reform initiatives in undergraduate science education, allows instructors to incorporate multiple writing assignments in large courses without overwhelming the instructor. This study reports successful implementation of CPR in a large, introductory geology course and student learning of geoscience content. For each CPR assignment in this study, students studied web-based and paper resources, wrote an essay, and reviewed seven essays (three from the instructor, three from peers, and their own) on the topic. Although many students expressed negative attitudes and concerns, particularly about the peer review process of this innovative instructional approach, they also recognized the learning potential of completing CPR assignments. Comparing instruction on earthquakes and plate boundaries using a CPR assignment vs. an instructional video lecture and homework essay with extensive instructor feedback, students mastered more content via CPR instruction.

Rudd, J.A., II; Wang, V.Z.; Cervato, C.; Ridky, R.W.

2009-01-01

120

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

121

Training medical students in community health: a novel required fourth-year clerkship at the University of Rochester.  

Science.gov (United States)

In 2004, community health became the fourth mission of the University of Rochester Medical Center, along with education, clinical care, and research. In that same year, a novel clerkship was added to the fourth-year curriculum that focuses on the "practice" of community health and preventive medicine. The goal is to offer intensive experiential training to develop skills in community health improvement by partnering with community agencies involved in health promotion and disease prevention. The learning objectives addressed include community health assessment, risk behavior change, assurance of personal health services, advocacy and policy change, environmental interventions, community organization and partnership building, and program evaluation. The clerkship involves three full days of didactic instruction at the beginning of a four-week period of program development and implementation. Each student chooses a project that focuses on a specific target population, then designs it and incorporates public health knowledge, skills, and attitudes learned during the didactic component. Course directors then mentor students during project implementation. Students can begin "longitudinal" experiences in their first or second years to fold into the required clerkship. Innovations include a novel Advocacy and Policy Change module, a highly rated Cultural Determinants of Health lecture, and a resource-based course Web site. The clerkship was initially offered as an elective, and it has since become a required course. In the clerkship to date, 340 students have launched hundreds of community-level interventions within various settings locally, nationally, and internationally. Evaluation efforts to date indicate that the clerkship has been received favorably by both faculty and students. PMID:18367896

McIntosh, Scott; Block, Robert C; Kapsak, Gabrielle; Pearson, Thomas A

2008-04-01

122

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

123

Case Assignment in Agrammatism.  

Science.gov (United States)

This study evaluated the omission patterns of case markers in the spontaneous speech of 12 Dutch and German adult speakers with agrammatic aphasia within the framework of Chomsky's case theory. Data supported the hypothesis that, if no case assigner is produced, the noun will receive nominative case by default or the case-marking morpheme will be…

Ruigendijk, Esther; van Zonneveld, Ron; Bastiaanse, Roelien

1999-01-01

124

Primal and dual assignment networks.  

Science.gov (United States)

This paper presents two recurrent neural networks for solving the assignment problem. Simplifying the architecture of a recurrent neural network based on the primal assignment problem, the first recurrent neural network, called the primal assignment network, has less complex connectivity than its predecessor. The second recurrent neural network, called the dual assignment network, based on the dual assignment problem, is even simpler in architecture than the primal assignment network. The primal and dual assignment networks are guaranteed to make optimal assignment. The applications of the primal and dual assignment networks for sorting and shortest-path routing are discussed. The performance and operating characteristics of the dual assignment network are demonstrated by means of illustrative examples. PMID:18255678

Wang, J

1997-01-01

125

Statistical Analysis of OFDMA Assignments  

OpenAIRE

In this paper we investigate statistical properties of IP optimal subcarrier assignments in the down-link of an OFDMA cell. Essentially, we show that such subcarrier assignments do have ¿hidden¿ statistical properties which can be exploited to design an extremely simple assignment strategy. We investigate such statistical properties and the corresponding performance of the simple assignment rules regarding a specific, well-known, NP-hard assignment problem. Although our approach is ¿...

Vega, Maria; Gross, James

2008-01-01

126

Charter School Barriers: Do Enrollment Requirements Limit Student Access to Charter Schools?  

Science.gov (United States)

The potential of the charter school movement to positively influence traditional public education lies in the ability of charter school officials to provide all students access to the curriculum. The aim of this study was to document potential registration and enrollment barriers incorporated into the practices of Colorado charter schools. The…

Weiler, Spencer C.; Vogel, Linda R.

2015-01-01

127

A Study of Teaching and Testing Strategies for a Required Statistics Course for Undergraduate Business Students  

Science.gov (United States)

In this investigation of student performance in introductory business statistics classes, the authors performed two separate controlled studies to compare performance in (a) distance-learning versus traditionally delivered courses and (b) multiple choice versus problem-solving tests. Results of the first study, based on the authors' several…

Lawrence, John A.; Singhania, Ram P.

2004-01-01

128

Requiring a Consistent Unit of Scale between the Responses of Students and Judges in Standard Setting  

Science.gov (United States)

One of the best-known methods for setting a benchmark standard on a test is that of Angoff and its modifications. When scored dichotomously, judges estimate the probability that a benchmark student has of answering each item correctly. As in most methods of standard setting, it is assumed implicitly that the unit of the latent scale of the…

Humphry, Stephen; Heldsinger, Sandra; Andrich, David

2014-01-01

129

Student Library Resource Requirements in Philadelphia. Annual Report, Phase IV, June 15, 1971 - June 30, 1972.  

Science.gov (United States)

Project operations in the 1971-72 year clearly demonstrated the effectiveness of interagency collaboration in the intensive work of planning, establishing, and operation of the Action Library Demonstration Center. The Action Library is designed to effect maximum impact on inner-city student library needs, attitudes, and skills. The year covered by…

Benford, John Q.

130

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

OpenAIRE

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...

Brown, Abbie H.

2009-01-01

131

Task assignment and coaching  

OpenAIRE

An important task of a manager is to motivate her subordinates. One way in which a manager can give incentives to junior employees is through the assignment of tasks. How a manager allocates tasks in an organization, provides information to the junior employees about his ability. Without coaching from a manager, the junior employee only has information about his past performance. Based on his past performance, a talented junior who has performed a difficult task sometimes decides to leave the...

Dominguez-martinez, S.

2009-01-01

132

Simple wavelength assignment protocol  

Science.gov (United States)

IP routers can be coupled with wavelength-selective optical cross- connects to support existing Internet infrastructure in a wavelength division multiplexing (WDM) optical network. Because optical wavelength routing is transparent to IP, packets can bypass traditional forwarding and pass directly through the optical cross-connect, resulting in very high throughput and low delay routing. This approach shares features with label switching, but wavelengths are much more scarce resource than labels. Because optical switches have larger switching times than electronic switches, and wavelength conversions are expensive, wavelength label swapping is not easily done. Wavelength label assignments must consider these limitations to be practical in an optical environment. The performance of an instance of this approach, called Packet over Wavelengths (POW) has been simulated and studied. A new signaling protocol, Simple Wavelength Assignment Protocol (SWAP) is devised to be POW signaling protocol. SWAP takes into account the optical device limitations, and is designed to minimize wavelength conversion, utilize wavelengths with the merging of flows, and reduce the reconfiguration of optical switches. SWAP, to our knowledge, is the first approach to combine signaling and wavelength assignment in an on- line protocol. This paper describes high level SWAP design challenges, decision, and overhead.

Suryaputra, Stephen; Touch, Joseph D.; Bannister, Joseph A.

2000-10-01

133

Function-Space Assignment for Educational Facilities?  

OpenAIRE

Function-space assignment, which allocates a function for each space in a facility, is one of the most important factors in determining the usability performance of a facility. An educational facility is often used through activity participation of different groups such as faculty or construction management graduate students. Members of a group participate in the same activities but with different behaviors (e.g., attendance rate, arrival time). This research uses two modules to optimize the ...

Ren-Jye Dzeng; Fan-Yi Hsiao; Chong-Wey Lin

2013-01-01

134

Automatic assignment of EC numbers.  

Science.gov (United States)

A wide range of research areas in molecular biology and medical biochemistry require a reliable enzyme classification system, e.g., drug design, metabolic network reconstruction and system biology. When research scientists in the above mentioned areas wish to unambiguously refer to an enzyme and its function, the EC number introduced by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (IUBMB) is used. However, each and every one of these applications is critically dependent upon the consistency and reliability of the underlying data for success. We have developed tools for the validation of the EC number classification scheme. In this paper, we present validated data of 3788 enzymatic reactions including 229 sub-subclasses of the EC classification system. Over 80% agreement was found between our assignment and the EC classification. For 61 (i.e., only 2.5%) reactions we found that their assignment was inconsistent with the rules of the nomenclature committee; they have to be transferred to other sub-subclasses. We demonstrate that our validation results can be used to initiate corrections and improvements to the EC number classification scheme. PMID:20126531

Egelhofer, Volker; Schomburg, Ida; Schomburg, Dietmar

2010-01-01

135

Assignment Of Finite Elements To Parallel Processors  

Science.gov (United States)

Elements assigned approximately optimally to subdomains. Mapping algorithm based on simulated-annealing concept used to minimize approximate time required to perform finite-element computation on hypercube computer or other network of parallel data processors. Mapping algorithm needed when shape of domain complicated or otherwise not obvious what allocation of elements to subdomains minimizes cost of computation.

Salama, Moktar A.; Flower, Jon W.; Otto, Steve W.

1990-01-01

136

Dynamic traffic assignment on parallel computers  

Energy Technology Data Exchange (ETDEWEB)

The authors describe part of the current framework of the TRANSIMS traffic research project at the Los Alamos National Laboratory. It includes parallel implementations of a route planner and a microscopic traffic simulation model. They present performance figures and results of an offline load-balancing scheme used in one of the iterative re-planning runs required for dynamic route assignment.

Nagel, K.; Frye, R.; Jakob, R.; Rickert, M.; Stretz, P.

1998-12-01

137

Does Failing a Placement Exam Discourage Underprepared Students from Going to College? National Poverty Center Working Paper Series #11-14  

Science.gov (United States)

About one-third of college students are required to take remedial courses to redress the lack of preparation for college-level coursework. Assignment to remediation is generally made on the basis of a placement test score, and in some states students are required to take a placement test prior to enrolling in college-level courses. In this type of…

Martorell, Paco; McFarlin, Isaac, Jr.; Xue, Yu

2013-01-01

138

Genomic scale sub-family assignment of protein domains  

OpenAIRE

Many classification schemes for proteins and domains are either hierarchical or semi-hierarchical yet most databases, especially those offering genome-wide analysis, only provide assignments to sequences at one level of their hierarchy. Given an established hierarchy, the problem of assigning new sequences to lower levels of that existing hierarchy is less hard (but no less important) than the initial top level assignment which requires the detection of the most distant relationships. A solut...

Gough, Julian

2006-01-01

139

Using Clouds for MapReduce Measurement Assignments  

Science.gov (United States)

We describe our experiences teaching MapReduce in a large undergraduate lecture course using public cloud services and the standard Hadoop API. Using the standard API, students directly experienced the quality of industrial big-data tools. Using the cloud, every student could carry out scalability benchmarking assignments on realistic hardware,…

Rabkin, Ariel; Reiss, Charles; Katz, Randy; Patterson, David

2013-01-01

140

Assertiveness for Librarians Harried by Inappropriate Lecture Hall and Classroom Assignments.  

Science.gov (United States)

Describes problems encountered by public librarians when assisting students with assignments that are difficult or impossible to complete. Examples of librarians' successes in assertive, tactful communication with instructors and a list of solutions to inappropriate assignments are provided. Special emphasis is given to assignments dealing with…

Parker, J. Carlyle

1990-01-01

141

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.

Janet Larson

142

Truthful Assignment without Money  

CERN Document Server

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 public information; however, whether an edge exists or not in the bipartite graph is a job's private information. We study several variants of the GAP starting with matching. For the unweighted version, we give an optimal strategyproof mechanism; for maximum weight bipartite matching, however, we show give a 2-approximate strategyproof mechanism and show by a matching lowerbound that this is optimal. Next we study knapsack-like problems, which are APX-hard. For these problems, we develop a general LP-based technique that extends the ideas ...

Dughmi, Shaddin

2010-01-01

143

On eigensystem assignment with output feedback  

Science.gov (United States)

A new approach for the eigenvalue assignment of linear, first-order, time-invariant systems using output feedback is developed. The approach can assign the maximum allowable number of closed-loop eigenvalues through output feedback provided that the system is fully controllable and observable, and both the input influence and output influence matrices are full rank. First, a collection of bases for the space of attainable closed-loop eigenvectors is generated using the Singular Value Decomposition or QR Decomposition techniques. Then, an algorithm based on subspace intersections is developed and used to compute the corresponding coefficients of the bases, and the required output feedback gain matrix. Moreover, the additional freedom provided by the multi-inputs and multi-outputs beyond the eigenvalue assignment is characterized for possible exploitation. A numerical example is given to demonstrate the viability of the proposed approach.

Maghami, Peiman G.; Juang, Jer-Nan; Lim, Kyong B.

1989-01-01

144

On the Use of Writing Assignments in Intermediate Microeconomic Theory  

Science.gov (United States)

A typical writing assignment in upper level required courses is a term paper. However many economics majors, particularly those in business schools, need to develop skill at writing shorter pieces. In this paper I describe numerous examples of shorter writing assignments that I have incorporated into an Intermediate Microeconomic Theory course.…

O'Neill, Patrick B.

2009-01-01

145

Assignments, curriculum framework and background information as the base of developing lessons  

OpenAIRE

1. What are the general strengths of the assignments? 2. Structure of the assignment 3. Resources of the assignment 4. Fostering self-expression 5. How could you improve the assignment? 6. Lack of specific examples 7. Not relating the issue to the students 8. Language Problems 9. Infeasibility to adaptation 10. In what ways was the additional information useful ? How could this be improved? 11. Was the framework useful for you and in what way? 12. In what ways...

Altuntas?, Kezban; Akc?ay, Pinar; Kools, Suzanne; Schnabel, Richard

2012-01-01

146

Making Economic Principles Personal: Student Journals and Reflection Papers  

Science.gov (United States)

The authors address two informal writing assignments implemented in introductory economics classes. One assignment involves students writing short reflection papers, and the other assignment involves students writing short journal entries for a designated period of time. Both assignments are designed to help students realize that economics is…

Brewer, Stephanie M.; Jozefowicz, James J.

2006-01-01

147

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

148

Power of Peer Review: An Online Collaborative Learning Assignment in Social Psychology  

Science.gov (United States)

In a semester-long, peer review assignment, undergraduates enrolled in a social psychology course wrote essays that applied course concepts to life experiences. Students anonymously posted essays for the entire class to view, and peers posted commentaries on classmates' essays using an online discussion board. Students rated the assignment as…

Cathey, Christie

2007-01-01

149

Designing Internet research assignments: building a framework for instructor collaboration  

Directory of Open Access Journals (Sweden)

Full Text Available Internet knowledge is increasing steadily among instructors in the academic world. As courses incorporate more instructional technology, traditional undergraduate research assignments are adapting to reflect the changing world of information and information access. New library assignments reflect this shift as well, with term papers and research projects asking students to use Web sites as an information resource, in addition to the standard literature of periodicals and monographs. But the many pitfalls the library profession has learned in its own metamorphosis during the past decade are often repeated in these newer course assignments. The authors in this paper present a framework for librarians to interact with instructors to incorporate Internet resources into traditional term paper and research assignments. They suggest a framework for creating sample assignments librarians can take to campus instructional units, to show the teaching community at large what the library profession has learned from first-hand experience.

David Ward

2000-01-01

150

Data Cleaning Assignment  

Science.gov (United States)

This activity, created by John P. Holcomb of Cleveland State University, guides students through the process of checking the validity of data, performing summary analysis, constructing box plots, and determining whether significant differences exist. The data comes from a study of calcium mineral levels in older adults and is available in Minitab, Excel, SAS, and text formats.

Holcomb, John P.

151

Designing Internet research assignments: building a framework for instructor collaboration  

OpenAIRE

Internet knowledge is increasing steadily among instructors in the academic world. As courses incorporate more instructional technology, traditional undergraduate research assignments are adapting to reflect the changing world of information and information access. New library assignments reflect this shift as well, with term papers and research projects asking students to use Web sites as an information resource, in addition to the standard literature of periodicals and monographs. But the m...

David Ward; Sarah Reisinger

2000-01-01

152

CrowdGrader: Crowdsourcing the Evaluation of Homework Assignments  

OpenAIRE

Crowdsourcing offers a practical method for ranking and scoring large amounts of items. To investigate the algorithms and incentives that can be used in crowdsourcing quality evaluations, we built CrowdGrader, a tool that lets students submit and collaboratively grade solutions to homework assignments. We present the algorithms and techniques used in CrowdGrader, and we describe our results and experience in using the tool for several computer-science assignments. Crowd...

Alfaro, Luca; Shavlovsky, Michael

2013-01-01

153

A Comparative Examination of Student Teacher and Intern Perceptions of Teaching Ability at the Preservice and Inservice Stages  

Science.gov (United States)

This study investigates how the culminating teacher preparation program (TPP) experience (either student teaching assignment or internship) influences the perceptions teachers report about their ability to perform instructional tasks required of teachers. A multivariate ANOVA test (N = 502) was conducted to compare perceptions of student teachers…

Clark, Sarah K.; Byrnes, Deborah; Sudweeks, Richard R.

2015-01-01

154

Introduction to Groundwater Assignment  

Science.gov (United States)

In this lab, students investigate groundwater flow and water quality within a groundwater well field on the CSU campus. The well field is part of the GroundWater Education and Teaching (GetWET) Observatory south of the Hilton Inn off Centre Drive. Students determine water flow paths and rates as well as measure water quality parameters such as water temperature, pH, electrical conductivity, and dissolved oxygen. Materials needed for this lab include: Groundwater equipment: Groundwater well or wells adjacent to a perennial stream. Water quantity equipment: Electronic water meter, staff, plate, tape, stop watch, and float to measure surface velocity. Water quality equipment: pH, temperature specific conductance, and dissolved oxygen meters, bailer, and bucket to collect samples. Other equipment: Map of site showing location of wells and stream.

155

Do Proper Accommodation Assignments Make a Difference? Examining the Impact of Improved Decision Making on Scores for English Language Learners  

Science.gov (United States)

Does it matter if students are appropriately assigned to test accommodations? Using a randomized method, this study found that individual students assigned accommodations keyed to their particular needs were significantly more efficacious for English language learners (ELLs) and that little difference was reported between students receiving…

Kopriva, Rebecca J.; Emick, Jessica E.; Hipolito-Delgado, Carlos Porfirio; Cameron, Catherine A.

2007-01-01

156

Heuristic for Task-Worker Assignment with Varying Learning Slopes  

OpenAIRE

Fashion industry has variety products, so the multi-skilled workers are required to improve flexibility in production and assignment. Generally the supervisor will assign task to the workers based on skill and skill levels of worker. Since in fashion industry new product styles are launched more frequently and the order size tends to be smaller, the workers always learn when the raw material and the production process changes. Consequently they require less time to produce the succeeding unit...

Wipawee Tharmmaphornphilas; Rein Boondisakulchok; Kanajana Thongsanit

2010-01-01

157

48 CFR 211.274-5 - Policy for assignment of Government-assigned serial numbers.  

Science.gov (United States)

...assignment of Government-assigned serial numbers. 211.274-5 Section...assignment of Government-assigned serial numbers. It is DoD policy that contractors apply Government-assigned serial numbers, such as tail...

2010-10-01

158

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

OpenAIRE

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 structu...

Marilyn Kell; Robyn Joy Gregson

2007-01-01

159

Length of Online Course and Student Satisfaction, Perceived Learning, and Academic Performance  

OpenAIRE

This research presents findings from a two-part study. In the first part, graduate students taking online courses were given a course evaluation form. Student responses from online abbreviated summer sessions were compared to student responses from online full-semester courses. Both the intensive and full-semester courses were taught by the same professor and both had identical requirements in terms of assignments and exams. The independent variable was the length of time taken to complete...

Ferguson, Janet M.; Defelice, Amy E.

2010-01-01

160

Keeping It Short and Sweet: Brief, Ungraded Writing Assignments Facilitate Learning  

OpenAIRE

Can short, ungraded, free-writing assignments promote learning of course material? We randomly assigned introductory psychology recitation sections (N = 978 students) to writing or thinking conditions. For all sections, teaching assistants presented students with a discussion topic based in current coursework. Students either wrote or thought about the topic for 5 min. All sections then discussed the topic for approximately 10 min. Exams included questions related to the discussion topics. St...

Drabick, Deborah A. G.; Weisberg, Robert; Paul, Luci; Bubier, Jennifer L.

2007-01-01

161

Students.  

Science.gov (United States)

Educational consumerism continues to be the major focus of litigation involving students. Disputes over admissions practices, grades, academic terminations, and financial aid comprised the largest proportion of cases reported this year. The section on academic affairs is the largest single section. As the job market gets tighter and the cost of…

Gehring, Donald D.; Young, D. Parker

162

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

163

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

164

Student Library Resource Requirements in Philadelphia. Phase I - Design and Pretests. Progress Report Covering Phase I, June 15, 1968 - July 14, 1969.  

Science.gov (United States)

This report covers the research activities undertaken during the first phase of a project, the purpose of which were (1) to determine actual requirements for library resources by elementary and secondary school students in Philadelphia and to evaluate existing library resources in terms of needs and standards and (2) on the basis of these data, to…

Benford, John Q.

165

Philadelphia Student Library Resource Requirements Project. Phase I Pretests - May 1969, Data-Gathering Instruments and Pretest Materials. Progress Report Covering Phase I, Attachment A.  

Science.gov (United States)

The data-gathering instruments and accompanying materials included in this document were designed, pretested, and evaluated during Phase I of a project to determine the library resource requirements for elementary and secondary students in Philadelphia, and to analyze the contributing part school systems and the public library system might play in…

Benford, John Q.

166

Towards a virtualized Internet for computer networking assignments  

OpenAIRE

By combining virtualization technologies, virtual private network techniques and parameterization of network scenarios it is possible to enhance a networking laboratory, typically carried out in university laboratory premises using equipment located there, by interconnecting it to virtual networks running on the students own personal computers. This paper describes some experiences applying this model to create hands-on assignments for a large group of students in computer networking education.

Bellido Triana, Luis; Ferna?ndez Cambronero, David; Pastor Marti?n, Encarnacio?n

2013-01-01

167

The Art of Probability Assignment  

CERN Document Server

The problem of assigning probabilities when little is known is analized in the case where the quanities of interest are physical observables, i.e. can be measured and their values expressed by numbers. It is pointed out that the assignment of probabilities based on observation is a process of inference, involving the use of Bayes' theorem and the choice of a probability prior. When a lot of data is available, the resulting probability are remarkable insensitive to the form of the prior. In the oposite case of scarse data, it is suggested that the probabilities are assigned such that they are the least sensitive to specific variations of the probability prior. In the continuous case this results in a probability assignment rule wich calls for minimizing the Fisher information subject to constraints reflecting all available information. In the discrete case, the corresponding quantity to be minimized turns out to be a Renyi distance between the original and the shifted distribution.

Dimitrov, Vesselin I

2012-01-01

168

ELECTRICAL AND ELECTRONIC INDUSTRIAL CONTROL. BASIC ELECTRICITY, UNIT 3, ASSIGNMENTS.  

Science.gov (United States)

THIS GUIDE IS FOR INDIVIDUAL STUDENT USE IN STUDYING BASIC ELECTRICAL FUNDAMENTALS IN ELECTRICAL-ELECTRONIC PROGRAMS. IT WAS DEVELOPED BY AN INSTRUCTIONAL MATERIALS SPECIALIST AND ADVISERS. THE COURSE OBJECTIVE IS TO DEVELOP AN UNDERSTANDING OF DIRECT CURRENT FUNDAMENTALS. EACH OF THE 10 ASSIGNMENT SHEETS PROVIDES THE LESSON SUBJECT, PURPOSE,…

SUTTON, MACK C.

169

ELECTRICAL AND ELECTRONIC INDUSTRIAL CONTROL. BASIC ELECTRICITY, UNIT 2, ASSIGNMENTS.  

Science.gov (United States)

THIS GUIDE IS FOR INDIVIDUAL STUDENT USE IN STUDYING BASIC ELECTRICAL FUNDAMENTALS IN ELECTRICAL-ELECTRONIC PROGRAMS. IT WAS DEVELOPED BY AN INSTRUCTIONAL MATERIALS SPECIALIST AND ADVISERS. THE COURSE OBJECTIVE IS TO DEVELOP AN UNDERSTANDING OF DIRECT CURRENT FUNDAMENTALS. EACH OF THE 15 ASSIGNMENT SHEETS PROVIDES THE LESSON SUBJECT, PURPOSE,…

SUTTON, MACK C.

170

ELECTRICAL AND ELECTRONIC INDUSTRIAL CONTROL. BASIC ELECTRICITY, UNIT 4, ASSIGNMENTS.  

Science.gov (United States)

THIS GUIDE IS FOR INDIVIDUAL STUDENT USE IN STUDYING BASIC ELECTRICAL FUNDAMENTALS IN ELECTRICAL-ELECTRONIC PROGRAMS. IT WAS DEVELOPED BY AN INSTRUCTIONAL MATERIALS SPECIALIST AND ADVISERS. THE COURSE OBJECTIVE IS TO DEVELOP AN UNDERSTANDING OF ALTERNATING CURRENT FUNDAMENTALS. EACH OF THE 16 ASSIGNMENT SHEETS PROVIDES THE LESSON SUBJECT, PURPOSE,…

SUTTON, MACK C.

171

College Textbook Reading Assignments and Class Time Activity  

Science.gov (United States)

It has been reported (Lei, Barlett, Gorney, & Herschbach, 2010; Sikorski et al., 2002) that only a minority of college students actually read the course textbook or other assigned readings in preparation for examinations. Suggested strategies to remedy this situation include quizzes (Ruscio, 2001; Ryan, 2006), study worksheets (Aagaard &…

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

2010-01-01

172

A Useful Metaheuristic for Dynamic Channel Assignment in Mobile Cellular Systems  

OpenAIRE

The prime objective of a Channel Assignment Problem (CAP) is to assign appropriate number of required channels to each cell in a way to achieve both efficient frequency spectrum utilization and minimization of interference effects (by satisfying a number of channel reuse constraints). Dynamic Channel Assignment (DCA) assigns the channels to the cells dynamically according to traffic demand, and hence, can provide higher capacity (or lower call blocking probability), fidelity and quality of se...

Deepak Kumar Singh; Srinivas, K.; Bhagwan Das, D.

2012-01-01

173

Exploring the basic elements required for an effective educator-student relationship in nursing education / Kathleen Froneman  

OpenAIRE

An effective educator-student relationship is a key factor to ensure a positive learning climate where learning can take place. Educators must work together to build caring relationships with students, provide support to eliminate barriers and create a positive learning climate. This will establish an atmosphere characterised by mutual support, caring and understanding, all of which are fundamental to a sound educator-student relationship. Resilience research consistently points to the import...

Froneman, Kathleen

2014-01-01

174

Probabilistic Analysis of Power Assignments  

OpenAIRE

A fundamental problem for wireless ad hoc networks is the assignment of suitable transmission powers to the wireless devices such that the resulting communication graph is connected. The goal is to minimize the total transmit power in order to maximize the life-time of the network. Our aim is a probabilistic analysis of this power assignment problem. We prove complete convergence for arbitrary combinations of the dimension d and the distance-power gradient p. Furthermore, we...

Graaf, Maurits; Manthey, Bodo

2014-01-01

175

Heuristic for Task-Worker Assignment with Varying Learning Slopes  

Directory of Open Access Journals (Sweden)

Full Text Available Fashion industry has variety products, so the multi-skilled workers are required to improve flexibility in production and assignment. Generally the supervisor will assign task to the workers based on skill and skill levels of worker. Since in fashion industry new product styles are launched more frequently and the order size tends to be smaller, the workers always learn when the raw material and the production process changes. Consequently they require less time to produce the succeeding units of a task based on their learning ability. Since the workers have both experience and inexperience workers, so each worker has different skill level and learning ability. Consequently, the assignment which assumed constant skill level is not proper to use. This paper proposes a task-worker assignment considering worker skill levels and learning abilities. Processing time of each worker changes along production period due to a worker learning ability. We focus on a task-worker assignment in a fashion industry where tasks are ordered in series; the number of tasks is greater than the number of workers. Therefore, workers can perform multiple assignments followed the precedence restriction as an assembly line balancing problem. The problem is formulated in an integer linear programming model with objective to minimize makespan. A heuristic is proposed to determine the lower bound (LB and the upper bound (UB of the problem and the best assignment is determined. The performance of the heuristic method is tested by comparing quality of solution and computational time to optimal solutions.

Wipawee Tharmmaphornphilas

2010-04-01

176

7 CFR 1430.218 - Assignments.  

Science.gov (United States)

...2010-01-01 2010-01-01 false Assignments. 1430.218 Section 1430.218 Agriculture Regulations of the Department...DAIRY PRODUCTS Milk Income Loss Contract Program § 1430.218 Assignments. Any producer may assign a...

2010-01-01

177

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

OpenAIRE

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’ over...

Yun-Chi Chen

2013-01-01

178

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 e because all participants agree with the current stream.

179

The Simple and Multiple Job Assignment Problems  

OpenAIRE

This paper addresses two real-life assignment problems. In both cases, the number of employees to whom tasks should be assigned is significantly greater than the number of tasks. In the simple job assignment problem, at most one task (job) should be assigned to each employee; this constraint is relaxed in the multiple job assignment problem. In both cases, the goal is to minimize the time the last task is completed; these problems are known as Bottleneck Assignment Problems (BAPs for short). ...

Chauvet, Fabrice; Proth, Jean-marie; Soumare, A.

1999-01-01

180

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

181

Practical Homework Assignments As Part Of Chemistry Teaching And Learning  

Directory of Open Access Journals (Sweden)

Full Text Available The paper presents two examples of classroom practices when practical research tasks in primary and secondary school are assigned as homework. The task for primary school students was aimed at developing divergent thinking, which is evidenced and illustrated by some examples of students’ solutions. The task for secondary school students illustrates how these students are able to apply their classroom knowledge of acids, bases and indicators on the substances they can find in everyday life. The students performed the following activities: problem analysis, action planning, and equipment selection/assembling, performing the experiment, measuring (mass, volume, data recording, and drawing conclusions. The results of both tasks served as a basis for introducing new contents in the classroom and stimulated active participation of a larger number of students.Keywords:

Dragica Trivic

2010-12-01

182

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

183

Capacity constrained assignment in spatial databases  

DEFF Research Database (Denmark)

Given a point set P of customers (e.g., WiFi receivers) and a point set Q of service providers (e.g., wireless access points), where each q 2 Q has a capacity q.k, the capacity constrained assignment (CCA) is a matching M Q × P such that (i) each point q 2 Q (p 2 P) appears at most k times (at most once) in M, (ii) the size of M is maximized (i.e., it comprises min{|P|, P q2Q q.k} pairs), and (iii) the total assignment cost (i.e., the sum of Euclidean distances within all pairs) is minimized. Thus, the CCA problem is to identify the assignment with the optimal overall quality; intuitively, the quality of q's service to p in a given (q, p) pair is anti-proportional to their distance. Although max-flow algorithms are applicable to this problem, they require the complete distance-based bipartite graph between Q and P. For large spatial datasets, this graph is expensive to compute and it may be too large to fit in main memory. Motivated by this fact, we propose efficient algorithms for optimal assignment that employ novel edge-pruning strategies, based on the spatial properties of the problem. Additionally, we develop approximate (i.e., suboptimal) CCA solutions that provide a trade-off between result accuracy and computation cost, abiding by theoretical quality guarantees. A thorough experimental evaluation demonstrates the efficiency and practicality of the proposed techniques.

U, Leong Hou; Yiu, Man Lung

2008-01-01

184

Why IEP Teams Assign Low Performers with Mild Disabilities to the Alternate Assessment Based on Alternate Achievement Standards  

Science.gov (United States)

The purpose of this case study was to determine teachers' rationales for assigning students with mild disabilities to alternate assessment based on alternate achievement standards (AA-AAS). In interviews, special educators stated that their primary considerations in making the assignments were low academic performance, student use of extended…

Cho, Hyun-Jeong; Kingston, Neal

2013-01-01

185

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

186

Teaching Feminist Activism: Reflections on an Activism Assignment in Introductory Women's Studies  

Science.gov (United States)

In this article, the author describes a feminist activism assignment that would allow students to "do something" about the many difficult social injustices they learn about in her class. The "Feminist Activism Project" has become a source of hope, frustration, anxiety, and ultimately ambivalence about the assignment's pedagogical merits. While…

Dean, Amber

2007-01-01

187

34 CFR 694.14 - What requirements apply to a State that served students under the National Early Intervention...  

Science.gov (United States)

...EDUCATION, DEPARTMENT OF EDUCATION GAINING EARLY AWARENESS AND READINESS FOR UNDERGRADUATE PROGRAMS (GEAR UP) § 694.14 What...under this part to those students until they complete secondary school. (Authority: 20 U.S.C....

2010-07-01

188

An "XL" Endodontics Intervention for Dental Students Required to Repeat the Course: Changing Frustration to Improved Grades and Attitudes.  

Science.gov (United States)

Given the psychological and financial costs involved with failing a clinical course, especially in developing countries, an alternative educational method was tested with students who had to repeat the year-long endodontic course at the University of Chile Faculty of Dentistry. The objectives of the intervention were to deepen theoretical knowledge and practical experiences, as well as to reinforce personal confidence in an endodontic clinical setting for students who failed the regular endodontic course. The aim of this study was to evaluate the success of this new model of educational intervention. In the study, 28 students who had failed the endodontic course repeated it with an alternative teaching method. The students attended patients immediately following practical competence exams, and they had access to simulated models that used rotary instruments and access cavities and had emergency care practice. Feedback sessions were held after each clinical session. Final grades were compared with those of other students who repeated the course without the intervention from 2007 to 2009. A survey was administered to understand the causes of initial failure and their opinions of the intervention. Students who participated in the alternative course did significantly better than their counterparts from previous years who did not receive the intervention (5.7±0.3 vs. 5.4±0.2; pperformance (54.2% of the students). The intervention course not only improved grades but also generated interest in endodontics, a contrasting perspective to the frustration students usually express after repeating the course. The results of this study support the introduction of similar interventions in endodontics and perhaps other courses. PMID:25838011

Alcota, Marcela; Fuenzalida, Alejandra; Barrientos, Claudia; Garrido, Mauricio; de Gauna, Pilar Ruiz; González, Fermín E

2015-04-01

189

The Economic Naturalist Writing Assignment  

Science.gov (United States)

Several months after having completed an introductory economics course, most students are no better able to answer simple economic questions than students who never took the course. The problem seems to be that principles courses try to teach students far too much, with the result that everything goes by in a blur. The good news is that a…

Frank, Robert H.

2006-01-01

190

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

191

Solar Heating Systems: Student Manual.  

Science.gov (United States)

This Student Manual for a Solar Heating System curriculum contains 22 units of instructional materials for students to use in a course or courses on solar heating systems (see note). For each unit (task), objectives, assignment sheets, laboratory assignments, information sheets, checkpoints (tests), and job sheets are provided. Materials are set…

Green, Joanne; And Others

192

Dual Power Assignment via Second Hamiltonian Cycle  

OpenAIRE

A power assignment is an assignment of transmission power to each of the wireless nodes of a wireless network, so that the induced graph satisfies some desired properties. The cost of a power assignment is the sum of the assigned powers. In this paper, we consider the dual power assignment problem, in which each wireless node is assigned a high- or low-power level, so that the induced graph is strongly connected and the cost of the assignment is minimized. We improve the bes...

Abu-affash, Karim; Carmi, Paz; Tzur, Anat Parush

2014-01-01

193

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

194

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

195

Meeting Oregon's New High School Math Graduation Requirements: Examining Student Enrollment and Teacher Availability. Issues & Answers. REL 2012-No. 126  

Science.gov (United States)

Disaggregating the data across four school variables--size, locale, racial/ethnic minority population, and population eligible for free or reduced-price lunch--this study examines the extent to which Oregon grade 9-12 students enrolled in high school math courses during 2006/07 and 2007/08 would not have been on track to graduate had the new…

Raphael, Jacqueline; Sage, Nicole; Ishimaru, Ann

2012-01-01

196

Student Library Resource Requirements in Philadelphia, Phase IV. Progress Report Covering Phase IV, June 15, 1971 - December 14, 1971.  

Science.gov (United States)

This progress report covers Project activities and accomplishments during the first six months (June 15 - December 14, 1971) of Phase IV of the Philadelphia Student Library Resources Project. A selected group of Project materials - Demonstration Center plans, evaluation design, program outlines, Community Advisory Board materials, and information…

Benford, John Q.

197

Student Library Resource Requirements in Philadelphia. Progress Report, Covering Phase IV, July 1, 1973-Dec. 31, 1973.  

Science.gov (United States)

Descriptions are provided of the activities of the Philadelphia Student Library Resources Project during the second half of 1973. Individual sections of the report offer details relating to project sponsorship and management, the summer and fall programs of the Action Library, program evaluation, dissemination of information about the project,…

Benford, John Q.

198

Student Library Resource Requirements in Philadelphia, Phase III. Progress Report Covering Phase III, June 15, 1970 - June 14, 1971.  

Science.gov (United States)

The joint planning phase of a multi-phase research, planning, and demonstration undertaking in the area of library resources and services for students in Philadelphia is covered in this report. The major activities reported include (1) development of processes for joint planning by the co-sponsoring organizations, (2) identification of "candidate"…

Benford, John Q.

199

Student Library Resource Requirements in Philadelphia; Supplement to Progress Report Covering Phase IV, June 15, 1971 - December 14, 1971.  

Science.gov (United States)

This supplement to the progress report of Phase IV of the Philadelphia Student Library Resources Project contains the following information: (1) Outline of major tasks, (2) Objectives for the demonstration center, (3) Sample program outlines of the center, (4) Evaluation design of the center, (5) Community profile and survey, (6) Community…

Benford, John Q.

200

MBA Admissions Requirements as Predictors of Motivational Beliefs and Self-Regulatory Strategies in Self-Selected Online MBA Students  

Science.gov (United States)

Driven by a variety of factors, online learning has continued to grow at an unprecedented rate. A Sloan Foundation report issued in January of 2010 indicated that in 2009, 4.6 million students took at least one online class, an increase in 17% over 2008. Graduate business education, and more specifically, Master of Business Administration (MBA)…

Salik, Steven H.

2010-01-01

201

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

202

Using HL7 in hospital staff assignments.  

Science.gov (United States)

Hospital staff assignments are the instructions that allocate the hospital staff members to the hospital beds. Currently, hospital administrators make the assignments without accessing the information regarding the occupancy of the hospital beds and the acuity of the patient. As a result, administrators cannot distinguish between occupied and unoccupied beds, and may therefore assign staff to unoccupied beds. This gives rise to uneven and inefficient staff assignments. In this paper, the hospital admission-discharge-transfer (ADT) system is employed both as a data source and an assignment device to create staff assignments. When the patient data is newly added or modified, the ADT system updates the assignment software client with the relevant data. Based on the relevant data, the assignment software client is able to construct staff assignments in a more efficient way. PMID:24480165

Unluturk, Mehmet S

2014-02-01

203

Length of Online Course and Student Satisfaction, Perceived Learning, and Academic Performance  

Directory of Open Access Journals (Sweden)

Full Text Available This research presents findings from a two-part study. In the first part, graduate students taking online courses were given a course evaluation form. Student responses from online abbreviated summer sessions were compared to student responses from online full-semester courses. Both the intensive and full-semester courses were taught by the same professor and both had identical requirements in terms of assignments and exams. The independent variable was the length of time taken to complete the requirements, with the dependent variables being satisfaction with the course, perceived learning, and academic performance. A statistical analysis of the data found significant differences in a number of areas.

Janet M. Ferguson

2010-05-01

204

Spin assignments in 149Sm  

International Nuclear Information System (INIS)

Particle-? angular correlations following Coulomb excitation of 149Sm and angular distributions following the 148Nd(?,3n)149Sm reaction have been measured. The spin of the 591 keV level has been uniquely assigned as 9/2-, in agreement with predictions of a particle-vibration intermediate coupling model. The usefulness of the technique in resolving spin ambiguities is discussed. (author)

205

Who benefits from homework assignments?  

OpenAIRE

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...

Rønning, Marte

2008-01-01

206

Earthquake! A Term Paper and Presentation Assignment  

Science.gov (United States)

To focus their research, students are presented with the following hypothetical situation: Suppose you and your classmates are members of an organization that is looking for a site to build a new headquarters. As the Society for Earthquake Enthusiasts (SEE), you plan to put your headquarters at the site of a historically significant earthquake. You are not looking to put yourselves at risk, however, and are therefore looking for a safe location. You have decided that a safe site is one that will not produce a deadly earthquake in your lifetime (i.e., in the next 80 years). Students complete a series of assignments throughout the semester to demonstrate their understanding of structural geology by writing papers and giving an oral presentation. First, a letter proposing a site is due early in the semester, next a historical background paper is due mid-semester, and finally a persuasive report and oral presentation are due at the end of the semester. Has minimal/no quantitative component

Laura Wetzel

207

Balancing Workload in Project Assignment  

Science.gov (United States)

In this paper, we study a project assignment problem. Specifically, a set of projects, each of which needs to be finished over a project development cycle, are to be assigned to a group of identical engineers over a discrete planning horizon. The workload of the projects is different and fluctuates over their development cycles. In any period, an engineer has a maximum allowed workload. The objective of the problem is to assign the projects to engineers with the objective of balancing the total workload among the engineers; the load balance is measured by the difference between the maximum and the minimum total workload. Such a problem is new to the literature. The problem is strongly NP-hard. Therefore, we propose a two-stage heuristic approach to solve it. Extensive numerical experiments show that the proposed approach can achieve optimal or nearly optimal solutions for all test cases; such performance is much better than what can be obtained from an IP model solved with ILOG CPLEX11.

Liang, Zhirong; Guo, Songshan; Li, Yanzhi; Lim, Andrew

208

47 CFR 63.24 - Assignments and transfers of control.  

Science.gov (United States)

...LINES, NEW LINES, AND DISCONTINUANCE, REDUCTION, OUTAGE AND IMPAIRMENT OF SERVICE BY COMMON CARRIERS; AND GRANTS OF RECOGNIZED PRIVATE...customer base, by a carrier to another carrier, is a sale of assets and shall be treated as an assignment, which requires...

2010-10-01

209

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

210

Teaching Note--Integrating a Social Justice Assignment Into a Research Methods Course  

Science.gov (United States)

Although social justice is a core value of social work, it can be more difficult to integrate into a research methods class. This article describes an assignment developed for a BSW one-semester research class that served the dual purpose of educating students about social justice as well as qualitative research. Students were instructed to…

Mapp, Susan C.

2013-01-01

211

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.

212

The Perceived Value of College Physics Textbooks: Students and Instructors May Not See Eye to Eye  

Science.gov (United States)

Physics instructors generally tell their students to read the textbook assignments before coming to lecture. While the textbook is a part of nearly every physics course, it is not clear how students use it. Only a small number of previous studies have asked how students actually use their textbooks. One such study measured the amount students read a particular introductory physics textbook at two institutions. This study showed that at one institution less than 40% of students in introductory physics regularly read the textbook assignments, but that at an institution where students were required to submit reading exercises, 55% of students regularly read the textbook. However, this study did not explore the effects of reading or whether different courses or different textbooks affected student reading habits. Another study, in chemistry, reported a significant correlation between the time spent reading and course grades for general chemistry students; lower performing students actually read more. This study, however, also reported that for organic chemistry students there was no correlation between time spent reading and course grades.2

Podolefsky, Noah; Finkelstein, Noah

2006-09-01

213

Motif-based fold assignment  

OpenAIRE

Conventional fold recognition techniques rely mainly on the analysis of the entire sequence of a protein. We present an MBA method to improve performance of any conventional sequence-based fold assignment. The method uses sequence motifs, such as those defined in the Prosite database, and the SwissProt annotation of the fold library. When combined with a simple SDP method, the coverage of MBA is comparable to the results obtained with PSI-BLAST. However, the set of the MBA predictions is sign...

Salwin?ski, ?ukasz; Eisenberg, David

2001-01-01

214

Using Content Reading Assignments in a Psychology Course to Teach Critical Reading Skills  

Directory of Open Access Journals (Sweden)

Full Text Available Liberal arts students are expected to graduate college with fully developed critical reading and writing skills. However, for a variety of reasons these skills are not always as well developed as they might be - both during and upon completion of college. This paper describes a reading assignment that was designed to increase students’ discipline-specific critical reading and writing skills. The assignment was piloted in a mid-level social psychology class. Pre-test/post-test comparisons indicate substantial improvement in students’ ability to identify thesis statements, recognize and interpret evidence, and other critical reading skills. Furthermore, students themselves rate the assignment as efficacious in helping them with both their reading and writing skills.

Debbie Van Camp

2013-02-01

215

Contiguous IP Address Assignment Strategy for Small-Scale MANET  

Science.gov (United States)

Most routing protocols in MANET use IP addresses as one of the most important routing information. To implement the routing protocol of MANET, the IP assignment in MANET should be solved. Allocating IP addresses is one of current key issues in the MANET, due to the absence of a centralized agent server. Previous methods require a large address space or can not use all the IP addresses of the given IP address space. For that reason, many IP addresses remain unused. To resolve this, we propose an IP address assignment protocol that uses the contiguous IP address assignment strategy without unused IP addresses. Simulations perform on ns-2 and confirm the viability of our protocol.

Hwang, Jin-Ok; Min, Sung-Gi

216

The ICAP (Interactive Course Assignment Pages Publishing System  

Directory of Open Access Journals (Sweden)

Full Text Available 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 functionality. The system generates dynamic, attractive course assignment pages that blend Web 2.0 features with traditional library resources, and makes the pages easier to find by providing a central web page for the course assignment pages. As of December 2007, the code is available as free, open-source software under the GNU General Public License.

Kim Griggs

2008-03-01

217

Stereospecific assignments in proteins using exact NOEs.  

Science.gov (United States)

Recently developed methods to measure distances in proteins with high accuracy by "exact" nuclear Overhauser effects (eNOEs) make it possible to determine stereospecific assignments, which are particularly important to fully exploit the accuracy of the eNOE distance measurements. Stereospecific assignments are determined by comparing the eNOE-derived distances to protein structure bundles calculated without stereospecific assignments, or an independently determined crystal structure. The absolute and relative CYANA target function difference upon swapping the stereospecific assignment of a diastereotopic group yields the respective stereospecific assignment. We applied the method to the eNOE data set that has recently been obtained for the third immunoglobulin-binding domain of protein G (GB3). The 884 eNOEs provide relevant data for 47 of the total of 75 diastereotopic groups. Stereospecific assignments could be established for 45 diastereotopic groups (96 %) using the X-ray structure, or for 27 diastereotopic groups (57 %) using structures calculated with the eNOE data set without stereospecific assignments, all of which are in agreement with those determined previously. The latter case is relevant for structure determinations based on eNOEs. The accuracy of the eNOE distance measurements is crucial for making stereospecific assignments because applying the same method to the traditional NOE data set for GB3 with imprecise upper distance bounds yields only 13 correct stereospecific assignments using the X-ray structure or 2 correct stereospecific assignments using NMR structures calculated without stereospecific assignments. PMID:24136114

Orts, Julien; Vögeli, Beat; Riek, Roland; Güntert, Peter

2013-11-01

218

Stereospecific assignments in proteins using exact NOEs  

Energy Technology Data Exchange (ETDEWEB)

Recently developed methods to measure distances in proteins with high accuracy by “exact” nuclear Overhauser effects (eNOEs) make it possible to determine stereospecific assignments, which are particularly important to fully exploit the accuracy of the eNOE distance measurements. Stereospecific assignments are determined by comparing the eNOE-derived distances to protein structure bundles calculated without stereospecific assignments, or an independently determined crystal structure. The absolute and relative CYANA target function difference upon swapping the stereospecific assignment of a diastereotopic group yields the respective stereospecific assignment. We applied the method to the eNOE data set that has recently been obtained for the third immunoglobulin-binding domain of protein G (GB3). The 884 eNOEs provide relevant data for 47 of the total of 75 diastereotopic groups. Stereospecific assignments could be established for 45 diastereotopic groups (96 %) using the X-ray structure, or for 27 diastereotopic groups (57 %) using structures calculated with the eNOE data set without stereospecific assignments, all of which are in agreement with those determined previously. The latter case is relevant for structure determinations based on eNOEs. The accuracy of the eNOE distance measurements is crucial for making stereospecific assignments because applying the same method to the traditional NOE data set for GB3 with imprecise upper distance bounds yields only 13 correct stereospecific assignments using the X-ray structure or 2 correct stereospecific assignments using NMR structures calculated without stereospecific assignments.

Orts, Julien; Vögeli, Beat; Riek, Roland, E-mail: roland.riek@phys.chem.ethz.ch [Swiss Federal Institute of Technology, Laboratory of Physical Chemistry (Switzerland); Güntert, Peter, E-mail: guentert@em.uni-frankfurt.de [Goethe University Frankfurt am Main, Center for Biomolecular Magnetic Resonance, Institute of Biophysical Chemistry (Germany)

2013-10-18

219

Stereospecific assignments in proteins using exact NOEs  

International Nuclear Information System (INIS)

Recently developed methods to measure distances in proteins with high accuracy by “exact” nuclear Overhauser effects (eNOEs) make it possible to determine stereospecific assignments, which are particularly important to fully exploit the accuracy of the eNOE distance measurements. Stereospecific assignments are determined by comparing the eNOE-derived distances to protein structure bundles calculated without stereospecific assignments, or an independently determined crystal structure. The absolute and relative CYANA target function difference upon swapping the stereospecific assignment of a diastereotopic group yields the respective stereospecific assignment. We applied the method to the eNOE data set that has recently been obtained for the third immunoglobulin-binding domain of protein G (GB3). The 884 eNOEs provide relevant data for 47 of the total of 75 diastereotopic groups. Stereospecific assignments could be established for 45 diastereotopic groups (96 %) using the X-ray structure, or for 27 diastereotopic groups (57 %) using structures calculated with the eNOE data set without stereospecific assignments, all of which are in agreement with those determined previously. The latter case is relevant for structure determinations based on eNOEs. The accuracy of the eNOE distance measurements is crucial for making stereospecific assignments because applying the same method to the traditional NOE data set for GB3 with imprecise upper distance bounds yields only 13 correct stereospecific assignments using the X-ray structure or 2 correct stereospecific assignments using NMR structures calculated without stereospecific assignments

220

Statistics Anxiety among Postgraduate Students  

Directory of Open Access Journals (Sweden)

Full Text Available Most postgraduate programmes, that have research components, require students to take at least one course of research statistics. Not all postgraduate programmes are science based, there are a significant number of postgraduate students who are from the social sciences that will be taking statistics courses, as they try to complete their postgraduate studies. As postgraduate students come from varied backgrounds, from those who have left school for more than a decade, to those who just completed their undergraduate studies, postgraduate statistics course may be one of the toughest to teach. These students come into the course with preconceived thoughts and attitude, which would either increase their anxiety towards statistics, or decrease their anxiety. Previous studies have shown that students reported high level of statistics anxiety during a statistics course. Unfortunately, there are limited studies on statistics anxiety in the Malaysian postgraduate population. Therefore, this study aims to determine the level of anxiety towards statistics among postgraduate student. This study also aims to explore factors that are associated with statistics anxiety among postgraduate students at the Faculty of Education, UKM. As a secondary outcome, this study explores the type of evaluation preferred by postgraduate students in relation to a statistics course. All postgraduate students who registered for the Research Statistics course at the Faculty of Education, National University of Malaysia, during the study period were invited to participate in the study. A total of 141 students completed the questionnaire and was included in this paper. This study found that a significant (21.7% of the students surveyed have anxiety in at least one of the statistics anxiety domain, either in anxiety towards class activities, attitude towards class, attitude towards Mathematics or self-perception of ability to perform in statistics. This study found that ethnicity was associated with higher anxiety towards class activities, with the Malays being more anxious compared to the non-Malays. Both ethnicity and bachelor’s degree were associated with attitude towards class and attitude towards Mathematics. For these two domains, the male students and students from non-science based bachelor’s degree, showed more anxiety compared to female students. Self-perception of ability to perform in statistics was not associated with any socio-demographic factors included in this study. Students in this study overwhelmingly preferred individual assignment as an evaluation method, followed by mid-semester examination, and the final semester examination. Least preferred were online participation and presentation.

Denise Koh

2014-12-01

221

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

222

GPON system with user controlled port-ID assignment method  

Science.gov (United States)

Passive Optical Network (PON) system with characters of low-cost and high-efficiency has become a promising solution for access network in relieving the bandwidth bottleneck problem. PON system can provide high-speed optical subscriber networks with broad bandwidth and long distance transmission. In current telecommunication carriers' PON system, different service has its given priority which is configured by carriers based on common requirements. However, different users have their own requirement and inflexibility of the given default service priority causes users' inconvenience and frustration. In this paper, we propose a novel method of user controlled Port-IDentifier (Port-ID) assignment in a Gigabit-capable PON (GPON) system. This method provides users a more individualized priority determination mechanism for end users through assigning a multi-level Port-ID to different service. Then users can manage their own bandwidth based on their requirements for different service and carriers can provide a flexible service management mechanism.

Zhang, Na; Yoshiuchi, Hideya

2008-11-01

223

Internship or Student Teaching?  

Science.gov (United States)

When there are no apparent differences in the quality of such features of the intern and student teaching assignments as cooperating personnel, program, teaching conditions, facilities, etc., the internship program offers the advantage of a more realistic experience as well as an added challenge for the more competent student. (MM)

Weber, Marie

1976-01-01

224

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

225

Assigning uncertainties to scientific data  

International Nuclear Information System (INIS)

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

226

Wavelength and fiber assignment problems on avionic networks  

DEFF Research Database (Denmark)

This paper solves the wavelength and fiber assignment problems with systems' isolation requirements on the avionic ring networks. The experiment results give a general glace of the numbers of the wavelengths and fibers are required under certain scale of networks. At the beginning of increasing system isolation requirements on the networks with shorter span traffics will not greatly increase the wavelength consumption and it will grow faster after the isolation constrains being larger up to certain scale. Regarding the traffics with longer span, the system isolation constrains slowly cause the increase of the used wavelengths. Under all situations, the fiber consumption are mainly changed according to the system isolation constrains.

Zhang, Jiang; An, Yi

2011-01-01

227

Causal Effects of Single-Sex Schools on College Entrance Exams and College Attendance: Random Assignment in Seoul High Schools  

OpenAIRE

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 backg...

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

2013-01-01

228

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

229

STAQ: Static Traffic Assignment with Queing:  

OpenAIRE

Because of computation time issues on large networks, most strategic regional and urban transport models today use static instead of dynamic traffic assignment procedures. Mathematical models of traffic assignment are usually based upon Wardrop’s principle. To solve this static traffic equilibrium problem almost all applied static assignment models follow Beckmann who formulated it as a convex optimization problem containing a link travel time function (Beckmann 1956). This function has the...

Brederode, L.; Bliemer, M. C. J.; Wismans, L.

2010-01-01

230

Job assignments, intrinsic motivation and explicit incentives  

OpenAIRE

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...

Nafziger, Julia

2008-01-01

231

34 CFR 674.50 - Assignment of defaulted loans to the United States.  

Science.gov (United States)

... FEDERAL PERKINS LOAN PROGRAM Due Diligence § 674.50 Assignment of defaulted...on the loan despite complying with the diligence procedures, including at least a...institution has complied with all of the due diligence requirements described in...

2010-07-01

232

Liftoff to learning: Assignment space  

Science.gov (United States)

The crew of the STS-58 Space Shuttle Columbia -- Commander John Blaha, Pilot Richard Searfoss, Payload Commander Rhea Seddon, Mission Specialist Shannon Lucid, Mission Specialist David Wolf, and Payload Specialist William McArthur host this educational video (part of the Liftoff to Learning series). The Astronauts help students to understand the importance of safety procedures on Earth as well as in space. They also discuss the effects of microgravity on various experiments in space.

1995-03-01

233

28 CFR 548.17 - Work assignments.  

Science.gov (United States)

...DEPARTMENT OF JUSTICE INSTITUTIONAL MANAGEMENT RELIGIOUS PROGRAMS Religious Beliefs and Practices of Committed Offenders § 548.17 Work assignments. When the religious tenets of an inmate's faith are...

2010-07-01

234

Evaluation of embedded audio feedback on writing assignments.  

Science.gov (United States)

The purpose of this pilot study was to compare embedded audio feedback (EAF), which faculty provided using the iPad(®) application iAnnotate(®) PDF to insert audio comments and written feedback (WF), inserted electronically on student papers in a series of writing assignments. Goals included determining whether EAF provides more useful guidance to students than WF and whether EAF promotes connectedness among students and faculty. An additional goal was to ascertain the efficiency and acceptance of EAF as a grading tool by nursing faculty. The pilot study was a quasi-experimental, cross-over, posttest-only design. The project was completed in an Informatics in Health Care course. Faculty alternated the two feedback methods on four papers written by each student. Results of surveys and focus groups revealed that students and faculty had mixed feelings about this technology. Student preferences were equally divided between EAF and WF, with 35% for each, and 28% were undecided. [J Nurs Educ. 2015;54(1):41-44.]. PMID:25535759

Graves, Janet K; Goodman, Joely T; Hercinger, Maribeth; Minnich, Margo; Murcek, Christina M; Parks, Jane M; Shirley, Nancy

2015-01-01

235

2012 SARA Students Technical Report  

Energy Technology Data Exchange (ETDEWEB)

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.

Briccetti, Angelo [Los Alamos National Laboratory; Lorei, Nathan [Los Alamos National Laboratory; Yonkings, David [Los Alamos National Laboratory; Lorio, David [Los Alamos National Laboratory; Goorley, John T. [Los Alamos National Laboratory; Sood, Avneet [Los Alamos National Laboratory

2012-07-30

236

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 inYMCA, 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.

237

Telephone Techniques for Secretarial Students  

Science.gov (United States)

A program integrating classroom study and internship placement at LaGuardia Community College was designed to provide secretarial students with expertise in telephone techniques. Specific lesson objectives and a field assignment are included as examples. (TA)

Anderson, Avis O.; McCabe, Helen

1977-01-01

238

Mainstreaming Techniques for LD Students.  

Science.gov (United States)

The article discusses general classroom management suggestions to help the learning disabled student achieve in the regular classroom. Suggestions address aspects of orientation/organization, physical environment, directions, instruction, memory, assignments, worksheets, and evaluation. (CL)

Gillet, Pamela

1986-01-01

239

Neural Correlates of Temporal Credit Assignment in the Parietal Lobe  

OpenAIRE

Empirical studies of decision making have typically assumed that value learning is governed by time, such that a reward prediction error arising at a specific time triggers temporally-discounted learning for all preceding actions. However, in natural behavior, goals must be acquired through multiple actions, and each action can have different significance for the final outcome. As is recognized in computational research, carrying out multi-step actions requires the use of credit assignment me...

Gersch, Timothy M.; Foley, Nicholas C.; Eisenberg, Ian; Gottlieb, Jacqueline

2014-01-01

240

A Distributed TDMA Slot Assignment Algorithm for Wireless Sensor Networks  

OpenAIRE

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 ch...

Herman, T.; Tixeuil, S.

2004-01-01

241

Graduate Students’ Perceptions of Written Feedback at a Private University in Pakistan  

Directory of Open Access Journals (Sweden)

Full Text Available Excellence in academic performance at the graduate level requires good command of writing skills. Teachers’ written feedback can help students to develop their writing skills. However, several personal and contextual factors may influence feedback processes and its utilization by students. Therefore, understanding these factors is essential to improve the practice of written feedback.  This study aimed to appraise the quality of written feedback in the graduate programmes and to ascertain students’ perceptions about it at a private university in Pakistan. A purposive sample of 15 participants comprised the study. The data were collected through in-depth students’ interviews and the teachers’ written comments on studentsassignments. Data were coded and categorized to assess the pattern of similarities and dissimilarities. The analysis of comments on studentsassignments indicated that the amount of feedback varied greatly. Although some feedback focused on form and style, most comments focused on the content. Moreover, the tone of comments lacked a balance of praise, criticism and suggestions. The data from students’ interviews were categorized as: variations in experiences, functions of written feedback, effectiveness of feedback and utilization of feedback. With some exceptions students’ perceptions about the quality feedback corroborated with the teachers’ comment analysis. The study highlights several factors that impact the receptivity and utilization of feedback by students.  Therefore, teachers need to be aware and trained to enhance the quality of their feedback.

Lubna Ghazal

2014-03-01

242

Automated and assisted RNA resonance assignment using NMR chemical shift statistics.  

Science.gov (United States)

The three-dimensional structure determination of RNAs by NMR spectroscopy relies on chemical shift assignment, which still constitutes a bottleneck. In order to develop more efficient assignment strategies, we analysed relationships between sequence and (1)H and (13)C chemical shifts. Statistics of resonances from regularly Watson-Crick base-paired RNA revealed highly characteristic chemical shift clusters. We developed two approaches using these statistics for chemical shift assignment of double-stranded RNA (dsRNA): a manual approach that yields starting points for resonance assignment and simplifies decision trees and an automated approach based on the recently introduced automated resonance assignment algorithm FLYA. Both strategies require only unlabeled RNAs and three 2D spectra for assigning the H2/C2, H5/C5, H6/C6, H8/C8 and H1'/C1' chemical shifts. The manual approach proved to be efficient and robust when applied to the experimental data of RNAs with a size between 20 nt and 42 nt. The more advanced automated assignment approach was successfully applied to four stem-loop RNAs and a 42 nt siRNA, assigning 92-100% of the resonances from dsRNA regions correctly. This is the first automated approach for chemical shift assignment of non-exchangeable protons of RNA and their corresponding (13)C resonances, which provides an important step toward automated structure determination of RNAs. PMID:23921634

Aeschbacher, Thomas; Schmidt, Elena; Blatter, Markus; Maris, Christophe; Duss, Olivier; Allain, Frédéric H-T; Güntert, Peter; Schubert, Mario

2013-10-01

243

The Implementation of a New Method of Student Assessment in a Pathogenic Bacteriology Laboratory Course  

Directory of Open Access Journals (Sweden)

Full Text Available A new case study method of assessment was developed to challenge advanced undergraduate biology majors interested in medical careers and allied health professions. This method is an alternative to traditional "unknown" identifications used in many microbiology laboratories. Students used various biochemical tests and selective media throughout the course to identify organisms cultured from their own bodies. In preparing a final assessment for the course, an assignment was developed to challenge the students to apply what they had learned in a medically relevant setting. Also of importance was the elimination of further biochemical testing by these students and prevention of contact with strict pathogens in this lab, due to budget and safety constraints, respectively. Each student was provided with a clinical specimen data record sheet and additional information about their "diseased patient". Students used analytical skills and critical thinking, as well as knowledge gained throughout the semester, to logically deduce the causative agent of disease in the mock patients. Students were required to: (i describe the steps in this logical deduction, (ii provide a brief overview of the characteristics and virulence factors of the organism(s, (iii investigate all disease(s caused by the organism, (iv describe symptomology of the patient in detail, and (v investigate disease treatment and prevention methods. The final assignment involved library and Internet research and culminated in a written report, which further developed writing and communication skills. Detailed descriptions of and materials for this assignment are provided along with an overall evaluation of this method after implementation.

M. Frances Hite

2009-12-01

244

A Useful Metaheuristic for Dynamic Channel Assignment in Mobile Cellular Systems  

Directory of Open Access Journals (Sweden)

Full Text Available The prime objective of a Channel Assignment Problem (CAP is to assign appropriate number of required channels to each cell in a way to achieve both efficient frequency spectrum utilization and minimization of interference effects (by satisfying a number of channel reuse constraints. Dynamic Channel Assignment (DCA assigns the channels to the cells dynamically according to traffic demand, and hence, can provide higher capacity (or lower call blocking probability, fidelity and quality of service than the fixed assignment schemes. Channel assignment algorithms are formulated as combinatorial optimization problems and are NP-hard. Devising a DCA, that is practical, efficient, and which can generate high quality assignments, is challenging. Though Metaheuristic Search techniques like Evolutionary Algorithms, Differential Evolution, Particle Swarm Optimization prove effective in the solution of Fixed Channel Assignment (FCA problems but they still require high computational time and therefore may be inefficient for DCA. A number of approaches have been proposed for the solution of DCA problem but the high complexity of these proposed approaches makes them unsuitable/less efficient for practical use. Therefore, this paper presents an effective and efficient Hybrid Discrete Binary Differential Evolution Algorithm (HDB-DE for the solution of DCA Problem

Deepak Kumar Singh

2012-09-01

245

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

246

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

247

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

248

Research Knowledge Transfer through Business-Driven Student Assignment  

Science.gov (United States)

Purpose: The purpose of this paper is to present a knowledge transfer method that capitalizes on both research and teaching dimensions of academic work. It also aims to propose a framework for evaluating the impact of such a method on the involved stakeholders. Design/methodology/approach: The case study outlines and evaluates the six-stage…

Sas, Corina

2009-01-01

249

Effective Use of Peer Assessment in a Graduate Level Writing Assignment: A Case Study  

Directory of Open Access Journals (Sweden)

Full Text Available At the undergraduate level, considerable evidence exists to support the use of peer assessment, but there is less research at the graduate level. In the present study, we investigated student perception of the peer assessment experience and the ability of graduate students to provide feedback that is comparable to the instructor and that is consistent between assessors on a written assignment. We observed that students were very supportive of the activity, and that negative concerns related to inconsistent peer evaluations were not supported by the quantitative findings, since the average grade of the student reviews was not significantly different from the instructor grade, although student reviewer reliability was not high. Students showed a significant grade improvement following revision subsequent to peer assessment, with lower graded papers showing the greatest improvement; greater grade change was also associated with an increased number of comments for which a clear revision activity could be taken. Design of the graduate peer assessment activity included several characteristics that have been previously shown to support positive findings, such as training, use of a clear assignment rubric, promotion of a trusting environment, use of peer and instructor grading, provision of directive and non-directive feedback, recruitment of positive comments, and use of more than one peer assessor. This study therefore builds on previous work and suggests that use of a carefully designed peer assessment activity, which includes clear direction regarding actionable comments, may provide students with useful feedback that improves their performance on a writing assignment.

Ashley Landry

2014-10-01

250

Systematic approach to conformational sampling for assigning absolute configuration using vibrational circular dichroism.  

Science.gov (United States)

Systematic methods that speed-up the assignment of absolute configuration using vibrational circular dichrosim (VCD) and simplify its usage will advance this technique into a robust platform technology. Applying VCD to pharmaceutically relevant compounds has been handled in an ad hoc fashion, relying on fragment analysis and technical shortcuts to reduce the computational time required. We leverage a large computational infrastructure to provide adequate conformational exploration which enables an accurate assignment of absolute configuration. We describe a systematic approach for rapid calculation of VCD/IR spectra and comparison with corresponding measured spectra and apply this approach to assign the correct stereochemistry of nine test cases. We suggest moving away from the fragment approach when making VCD assignments. In addition to enabling faster and more reliable VCD assignments of absolute configuration, the ability to rapidly explore conformational space and sample conformations of complex molecules will have applicability in other areas of drug discovery. PMID:24383452

Sherer, Edward C; Lee, Claire H; Shpungin, Joseph; Cuff, James F; Da, Chenxiao; Ball, Richard; Bach, Richard; Crespo, Alejandro; Gong, Xiaoyi; Welch, Christopher J

2014-01-23

251

Automatic Assignment of EC Numbers  

OpenAIRE

A wide range of research areas in molecular biology and medical biochemistry require a reliable enzyme classification system, e.g., drug design, metabolic network reconstruction and system biology. When research scientists in the above mentioned areas wish to unambiguously refer to an enzyme and its function, the EC number introduced by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (IUBMB) is used. However, each and every one of these applications...

Egelhofer, Volker; Schomburg, Ida; Schomburg, Dietmar

2010-01-01

252

Dynamic pole assignment and Schubert calculus  

OpenAIRE

The output feedback pole assignment problem is a classical problem in linear systems theory. In this paper we calculate the number of complex dynamic compensators of order $q$ assigning a given set of poles for a $q$-nondegenerate $m$-input, $p$-output system of McMillan degree $n = q(m + p - 1) + mp$. As a corollary it follows that when this number is odd, the generic system can be arbitrarily pole assigned by output feedback with a real dynamic compensator of order at most $q$ if and only i...

Ravi, M.; Rosenthal, J.; Wang, X.

1996-01-01

253

Using anti-plagiarism software to promote academic honesty in the context of peer reviewed assignments  

OpenAIRE

A variety of free and commercial software applications designed to detect plagiarism from Internet sources has appeared in recent years. However, their effectiveness and impact on student behaviour has been assumed rather than confirmed. The study presented here explores the responses and perceptions of a group of first year students at an Irish university after their first contact with anti-plagiarism software in the context of peer-reviewed assignments. The results indicate that the use of ...

Ledwith, Ann; Risquez, Angelica

2008-01-01

254

Feedback stabilisation of switched systems via iterative approximate eigenvector assignment  

CERN Document Server

This paper presents and implements an iterative feedback design algorithm for stabilisation of discrete-time switched systems under arbitrary switching regimes. The algorithm seeks state feedback gains so that the closed-loop switching system admits a common quadratic Lyapunov function (CQLF) and hence is uniformly globally exponentially stable. Although the feedback design problem considered can be solved directly via linear matrix inequalities (LMIs), direct application of LMIs for feedback design does not provide information on closed-loop system structure. In contrast, the feedback matrices computed by the proposed algorithm assign closed-loop structure approximating that required to satisfy Lie-algebraic conditions that guarantee existence of a CQLF. The main contribution of the paper is to provide, for single-input systems, a numerical implementation of the algorithm based on iterative approximate common eigenvector assignment, and to establish cases where such algorithm is guaranteed to succeed. We inc...

Haimovich, Hernan

2010-01-01

255

George Orwell's Animal Farm: a case study in leadership/management for undergraduate nursing students.  

Science.gov (United States)

Many BSN curricula require a "leadership and management" course. At George Mason University, that course is Leadership and Management in Nursing and Health Science. This article describes how George Orwell's classic novel Animal Farm was used as a case study in leadership and management. This exercise complemented the traditional course material, united the class in a common intellectual exercise, and fostered creative thinking. A nursing student, Anne Lord, offers reaction to the assignment as a signed "In-Box" exemplar. PMID:19038207

Metcalf, James A

2005-07-01

256

"This english writing thing": students' perceptions of their writing experiences at an english-medium university  

OpenAIRE

This article explores five students’ perceptions of their writing experiences at an English-medium post-graduate university in a non-English speaking country as compared to writing in their home country universities in their native languages. Three types of differences are found to be relevant: language and rhetorical differences, disciplinary differences, and differences in educational systems (such as the number of assignments required, the focus of writing instruction, and feedback...

Petri, Bojana

2007-01-01

257

Occupational Code Assignment System (CodeSearch)  

Science.gov (United States)

The Codesearch System is a PC-based system which provides users with an interactive method for assigning standardized industry and occupation codes to related job description titles from specific studies.

258

On spectral assignment for neutral type systems  

OpenAIRE

For a large class of linear neutral type systems the problem of eigenvalues and eigenvectors assignment is investigated, i.e. finding the system which has the given spectrum and almost all, in some sense, eigenvectors.

Sklyar, Kateryna; Rabah, Rabah; Sklyar, Grigory

2013-01-01

259

7 CFR 247.21 - Caseload assignment.  

Science.gov (United States)

...Department of Agriculture (Continued) FOOD AND NUTRITION SERVICE, DEPARTMENT OF AGRICULTURE...NUTRITION PROGRAMS COMMODITY SUPPLEMENTAL FOOD PROGRAM § 247.21 Caseload assignment...fiscal year; (C) Program participation trends in the State in previous fiscal...

2010-01-01

260

What Are Some Innovative Assignment Ideas for a Good Start to a New School Year?  

Science.gov (United States)

"Teacher to Teacher" provides a forum for teachers to share ideas, materials, and activities. In this article, the authors offer some innovative assignment ideas for a good start to a new school year. These are: (1) writing mentors to improve students' nonfiction writing skills; (2) writing book reviews for real audiences and real purposes; and…

Marinella, Sandi; Winkler, Lisa; Tsui, Jonathan

2008-01-01

261

BASIC MATHEMATICS FOR ELECTRICITY, ELECTRICAL, AND ELECTRONIC CONTROL. UNIT 1, ASSIGNMENTS.  

Science.gov (United States)

THIS GUIDE IS FOR INDIVIDUAL STUDENT USE IN STUDYING BASIC MATHEMATICS IN ELECTRICAL-ELECTRONIC PROGRAMS. IT WAS DEVELOPED BY AN INSTRUCTIONAL MATERIALS SPECIALIST AND ADVISERS. EACH OF THE 19 ASSIGNMENT SHEETS PROVIDES THE LESSON SUBJECT, PURPOSE, INTRODUCTORY INFORMATION, STUDY REFERENCES, DIRECTIONS, AND PROBLEMS. THE LESSONS, KEYED TO THREE…

SUTTON, MACK C.; WYKES, MURRAY L.

262

A New "Moodle" Module Supporting Automatic Verification of VHDL-Based Assignments  

Science.gov (United States)

This work describes a new "Moodle" module developed to give support to the practical content of a basic computer organization course. This module goes beyond the mere hosting of resources and assignments. It makes use of an automatic checking and verification engine that works on the VHDL designs submitted by the students. The module automatically…

Gutierrez, Eladio; Trenas, Maria A.; Ramos, Julian; Corbera, Francisco; Romero, Sergio

2010-01-01

263

Same Content, Less Time--And Online, Too?: An Assignment for Meeting the Challenge.  

Science.gov (United States)

Considers combining topics in a virtual class as an attempt to assist incoming Master of Science Management students in accomplishing their long list of managerial communication learning objectives in a shorter delivery time and within the virtual environment. Describes the contemporary book review and discussion assignment and considers benefits…

Cresap, Linda M.

2002-01-01

264

Task assignment in parallel processor systems  

OpenAIRE

A generic object-oriented simulation platform is developed in order to conduct experiments on the performance of assignment schemes. The simulation platform, called Genesis, is generic in the sense that it can model the key parameters that describe a parallel system: the architecture, the program, the assignment scheme and the message routing strategy. Genesis uses as its basis a sound architectural representation scheme developed in the thesis. The thesis reports results fr...

Manoharan, Sathiamoorthy

1993-01-01

265

The Traffic Assignment Toolboxes of Scilab  

OpenAIRE

We present the two toolboxes of Scilab dedicated to the traffic assignment. The first one, called CiudadSim, is devoted to the single class single mode case. The second one, called MCiudadSim, is concerned with the multiclass multimode case. After recalling the notions of Wardrop equilibrium and stochastic assignments the toolboxes are introduced and the manuals --- describing completely all the functions --- are given.

Lotito, Pablo; Mancinelli, Elina; Quadrat, Jean-pierre; Wynter, Laura

2003-01-01

266

Power Assignment Problems in Wireless Communication  

OpenAIRE

A fundamental class of problems in wireless communication is concerned with the assignment of suitable transmission powers to wireless devices/stations such that the resulting communication graph satisfies certain desired properties and the overall energy consumed is minimized. Many concrete communication tasks in a wireless network like broadcast, multicast, point-to-point routing, creation of a communication backbone, etc. can be regarded as such a power assignment problem...

Funke, Stefan; Laue, Soeren; Lotker, Zvi; Naujoks, Rouven

2006-01-01

267

Weapon Target Assignment with Combinatorial Optimization Techniques  

OpenAIRE

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 ...

Asim Tokgöz; Serol Bulkan

2013-01-01

268

The Performance Appraisal Interview: A Multi-Purpose Communication Assignment.  

Science.gov (United States)

Discusses performance appraisals in business. Describes a performance appraisal assignment that involves written assignments, role-playing an appraisal interview, and subsequent discussion of issues that arise. Includes several figures describing assignment activities. (SR)

Brownell, Judi

1994-01-01

269

47 CFR 2.102 - Assignment of frequencies.  

Science.gov (United States)

...2010-10-01 false Assignment of frequencies. 2.102 Section 2.102 Telecommunication...COMMUNICATIONS COMMISSION GENERAL FREQUENCY ALLOCATIONS AND RADIO TREATY MATTERS...Allocation, Assignment, and Use of Radio Frequencies § 2.102 Assignment of...

2010-10-01

270

47 CFR 73.702 - Assignment and use of frequencies.  

Science.gov (United States)

...2010-10-01 false Assignment and use of frequencies. 73.702 Section 73.702 Telecommunication...Stations § 73.702 Assignment and use of frequencies. (a) Frequencies will be assigned by the Commission...

2010-10-01

271

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

272

Writing approaches of nursing students.  

Science.gov (United States)

Over the past 20years, research has focused on the writing processes of college students, however, despite recent support for writing as a tool of reflection in nursing education, little is known about how it is that nursing students go about writing papers and assignments as part of their professional education. In order to determine the writing processes of nursing students, the Inventory of Processes in College Composition, a self-response questionnaire, was administered to 169 nursing students. Results support the independence of the writing approaches that nursing students use and similarity to the writing approaches of a general college student population. PMID:22112918

Lavelle, Ellen; Ball, Susan C; Maliszewski, Genevieve

2013-01-01

273

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

274

48 CFR 42.602 - Assignment and location.  

Science.gov (United States)

...Regulations System FEDERAL ACQUISITION REGULATION CONTRACT MANAGEMENT CONTRACT ADMINISTRATION AND AUDIT SERVICES Corporate Administrative Contracting Officer 42.602 Assignment and location. (a) A CACO may be assigned...

2010-10-01

275

What Should Students Read?  

Science.gov (United States)

The reading students are required to do for school bears little semblance to the reading they do outside of school. Students today are reading the same texts in school that students read a generation ago, but the varieties of text used outside of school are much different. One result is that many students are unmotivated to become readers.…

Wolk, Steven

2010-01-01

276

Boundary assignment in a recurrent network architecture.  

Science.gov (United States)

We describe a model and simulations of boundary assignment by cortical neurons, a process that assigns edges to figural image regions, as opposed to the background regions on the other side of the edge. The model is composed of several areas, resembling the hierarchical feedforward-feedback organization of areas in the visual cortex. In each successive area along the hierarchy, the visual image is represented at a coarser resolution. Model neurons tend to assign edges to convex image regions. Because of high spatial resolution, information about convexity is not immediately available to all neurons in lower-level areas. In higher-level areas, however, spatial resolution is low, and convexity is coded more reliably. Feedback connections propagate this information to the high-resolution neurons of lower-level visual areas, making it available at all network levels and at all spatial resolutions. The proposed connection scheme assigns edges faster and more reliable to objects than one with only horizontal connections. The model accounts for both psychophysical and neurophysiological data on figural assignment. PMID:17368500

Jehee, Janneke F M; Lamme, Victor A F; Roelfsema, Pieter R

2007-04-01

277

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

OpenAIRE

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

278

Vicious viruses and vigilant vaccines: effects of linguistic agency assignment in health policy advocacy.  

Science.gov (United States)

Studying the effect of a fictitious policy editorial advocating mandatory vaccination of youth against human papillomavirus (HPV), the authors hypothesized that linguistic assignment of agency to HPV (e.g., "HPV preys on millions of people") would increase perceptions of its severity, relative to a comparable message that assigned agency to humans (e.g., "Millions of people contract HPV"). In addition, the authors predicted that HPV vaccines would be perceived as more effective when agency was assigned to vaccination (e.g., "Vaccination guards people") rather than to humans (e.g., "People guard themselves through vaccination"). University students (N = 361) were randomly assigned to read one of four versions of the editorial defined by a 2 ×2 (Threat Agency × Immunization Agency) factorial design and thereafter completed a questionnaire. When agency was assigned to the virus or the vaccine, HPV was perceived as a more severe threat, vaccination was perceived as more effective, and people were more in favor of mandatory HPV vaccination. The authors concluded that linguistic agency assignment bestows potency to the agent, thereby making threats more alarming and medical interventions seem more effective. PMID:24354913

Bell, Robert A; McGlone, Matthew S; Dragojevic, Marko

2014-01-01

279

Student Library Resource Requirements in Philadelphia. Selected Materials Covering Joint Planning and Development of a Student Learning Center Demonstration. Supplement to Annual Report, Covering Phase IV, July 1, 1972-June 30, 1973.  

Science.gov (United States)

Materials which relate to the activities of the Philadelphia Student Library Resources Project for the period July 1, 1972-June 30, 1973 are presented. The Project, which began with research into student library needs, use patterns, attitudes and resources has now moved to the stage of interagency planning, operation, and evaluation of programs…

Benford, John Q.

280

Investigations of Protein Structure and Function Using the Scientific Literature: An Assignment for an Undergraduate Cell Physiology Course  

OpenAIRE

Undergraduate biology curricula are being modified to model and teach the activities of scientists better. The assignment described here, one that investigates protein structure and function, was designed for use in a sophomore-level cell physiology course at Earlham College. Students work in small groups to read and present in poster format on the content of a single research article reporting on the structure and/or function of a protein. Goals of the assignment include highlighting the int...

Mulnix, Amy B.

2003-01-01

281

Optimization in Computer Engineering—Theory and Applications: Book Review of Chapter 8—Applying Graph Coloring to Frequency Assignment  

OpenAIRE

The chapter gives a concise and clear presentation of the basic concepts and the variants of the graph coloring problem. It discusses the link between these variants. It uses a very simple and clear language that is at the grasp of an average engineering or science undergraduate student. It then focuses on discussing the applicability of the graph coloring problem to Frequency Assignment Problem (FAP). It precisely selects a special case of this problem: the Fixed Channel Assignment (FCA). Th...

Ridha Khedri

2012-01-01

282

Records management policies and requirements  

International Nuclear Information System (INIS)

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

283

Influence of chemical shift tolerances on NMR structure calculations using ARIA protocols for assigning NOE data  

International Nuclear Information System (INIS)

Large-scale protein structure determination by NMR via automatic assignment of NOESY spectra requires the adjustment of several parameters for optimal performance. Among those are the chemical shift tolerance windows (?), which allow for the compensation of badly matching chemical shifts in the assignment-list and peak-lists, and the maximum number of assignment possibilities allowed per peak (nmax). Here, we test the influence of different values for ? and nmax on the performance of automated assignment of NOESY spectra by ARIA. Using Cesta.py (a Python script available from http://pasteur.fr/binfs/), we analyse the number of rejected peaks and the average number of assignments as a function of ? and derive criteria for optimising ? and nmax prior to structure calculation. The analysis also makes it possible to detect inconsistencies in the dataset, e.g., badly matching frequencies in the NOESY peak-lists and in the provided assignment-list. We show that ARIA can deal with a large number of assignment possibilities for each peak, provided the correct option is present, and that consequently narrow tolerances should be avoided

284

Collaborative testing: assessing teamwork and critical thinking behaviors in baccalaureate nursing students.  

Science.gov (United States)

The purpose of this study was to foster teamwork and critical thinking behaviors in baccalaureate nursing students using a collaborative testing environment. Collaborative testing affords the nurse educator a unique opportunity to actively influence the development of critical thinking skills directly influencing the nursing student's ability to solve complex patient problems. Using a quasi-experimental approach exam scores from students in prior semesters were compared to students in several semesters using collaborative testing in one undergraduate course taught by the same faculty. In the experimental group collaborative testing was used in the two unit examinations, while the final examination remained individual. For collaborative testing the students were grouped by random assignment. They were not allowed the use of notes, textbooks, or other resource materials. Any student who wished to work alone was allowed do so and any student coming late (within 15 min of examination beginning) was required to work alone. Each student submitted individual examination answer forms, and groups were not required to reach consensus. Collaborative testing is one means to foster critical thinking by allowing students to solve complex patient problems within an examination environment. This better prepares them for national certification exams. PMID:21084136

Wiggs, Carol M

2011-04-01

285

Undergraduate students’ information search practices  

Directory of Open Access Journals (Sweden)

Full Text Available This paper investigates undergraduate students’ information search practices.The subjects were 250 undergraduate students from two university departments in Greece, and a questionnaire was used to document their search practices. The results showed that the Web was the primary information system searched in order to findinformation for university assignments, while the level of database searching was verylow. In particular, the search engine Google was used very frequently either foruniversity assignments or for personal purposes. Regarding students’ practices inevaluating Web?based information, the top criteria reported were ‘relevance ofinformation’ and ‘easy to understand’. Students’ self?efficacy concerning Web?searchingwas found to be high and positively related to the variables ‘frequency of Web use’ and‘years of internet use’. Implications for students’ training are discussed. Students’ search behaviour needs to be expanded beyond the Web search engines, to include a wider range of information retrieval systems.

Kleopatra Nikolopoulou

2011-01-01

286

Establishing relevance as a way to motivate introductory students  

Science.gov (United States)

Introduction to Geology students are asked to write a two page (5-6 paragraph) editorial that addresses what geology is and why it is important to society. To gather the information for their editorial, students have to interview at least five individuals (two of whom have to be professionals or faculty members), and consult the mission statements and goals of professional geology organizations (i.e. AAPG, AGU, GSA, SEPM, etc.) Students then synthesize their research and construct a well-written editorial with appropriate citations that will either explain, persuade, criticize, or praise. In completing the assignment, students not only better understand why it is good to study geology, but also have an appreciation for the scope and content of an Intro to Geology course. Teaching Tips Adaptations that allow this activity to be successful in an online environment I have not used this activity in an online environment, although students in my face-to-face class submit their assignment online through learning management software (i.e. BlackBoard, Desire2Learn, etc.). Elements of this activity that are most effective This is effective because it requires that students become active in the learning process, and although the writing is minimal, they have to really pay attention to their wording, point of view, and purpose. Moreover, when students interview professionals, other faculty, their parents, or friends, they are often engaged in interesting conversations that provide important insights. I have found that this helps motivate students and excites them about the content of the course. Recommendations for other faculty adapting this activity to their own course: I recommend that other faculty use the content of the editorials periodically by referring back to student responses throughout the duration of their courses. It helps draw students back into the course, and helps connect them to why they are studying geology in the first place. In years when written work are less than satisfactory, I often require students to swap editorials and provide peer critiques. This usually helps students who struggle with their writing.

Sean Cornell

287

Using Commonplace Books to Help Students Develop Multiple Perspectives  

Science.gov (United States)

In this article, the author describes how she used a commonplace book assignment to help students expand their background knowledge and as a means to formulate mature, informed perspectives regarding issues of importance. In the assignment, the author wanted the students to: (1) investigate issues of the day; (2) develop multiple perspectives…

Carbone, Paula M.

2010-01-01

288

Increasing Student-Learning Team Effectiveness with Team Charters  

Science.gov (United States)

Because teams are a ubiquitous part of most organizations today, it is common for business educators to use team assignments to help students experientially learn about course concepts and team process. Unfortunately, students frequently experience a number of problems during team assignments. The authors describe the results of their research and…

Hunsaker, Phillip; Pavett, Cynthia; Hunsaker, Johanna

2011-01-01

289

Activites to Support and Assess Student Understanding of Earth Data  

Science.gov (United States)

In order to use data effectively, learners must construct a mental model that allows them to understand and express spatial relationships in data, relationships between different data types, and relationships between the data and a theoretical model. Another important skill is the ability to identify gross patterns and distinguish them from details that may require increasingly sophisticated models. Students must also be able to express their understanding, both to help them frame their understanding for themselves, and for assessment purposes. Research in learning unequivocally shows that writing about a subject increases understanding of that subject. In UCSB's general education oceanography class, a series of increasingly demanding activities culminates in two science papers that use earth data. These activities are: 1) homework problems, 2) in-class short writing activities, 3) lab section exploration activities and presentations, and 4) the science paper. The subjects of the two papers are: Plate Tectonics and Ocean and Climate. Each student is a member of a group that adopts a country and must relate their paper to the environment of their country. Data are accessed using the "Our Dynamic Planet" and "Global Ocean Data Viewer" (GLODV) CD's. These are integrated into EarthEd Online, a software package which supports online writing, review, commenting, and return to the student. It also supports auto-graded homework assignments, grade calculation, and other class management functions. The writing assignments emphasize the construction of a scientific argument. This process is explained explicitly, requiring statements that: 1) include an observation or description of an observation (e.g. elevation profiles, quakes), 2) name features based on the observation (e.g. trench, ridge), 3) describe of features (e.g. trends NW, xxxkm long), 4) describe relationships between features (e.g. quakes are parallel to trench), 5) describe a model or theory (e.g. cartoon type representation of a subduction zone), and 6) describe the relationship between the model/theory and the data. Students generate and select data representations with the appropriate data display software, which seamlessly uploads each generated image to the student's personal storage area (on the class server). There they are available to be linked to the writing text. The assignment is "handed in" online, where it is commented, graded according to a rubric, and returned. Students rate the writing assignment as one of the most effective activities that contributes to their learning in the course.

Prothero, W. A.; Regev, J.

2004-12-01

290

Required High School Internships  

Science.gov (United States)

Through a literature review, and in the words of internees, this article describes the value of required internship for career growth. It notes that an internship experience ensures that students have a mentor who can be a professional reference, having actually witnessed what Mojkowski and Washor call the students' "non-academic"…

Graham, Kate; Morrow, Jennifer

2013-01-01

291

Tabu search for target-radar assignment  

DEFF Research Database (Denmark)

In the paper the problem of assigning air-defense illumination radars to enemy targets is presented. A tabu search metaheuristic solution is described and the results achieved are compared to those of other heuristic approaches, implementation and experimental aspects are discussed. It is argued that tabu search could be used in near real-time decision making systems

Hindsberger, Magnus; Vidal, Rene Victor Valqui

2000-01-01

292

Preparing students for class: How to get 80% of students reading the textbook before class  

Science.gov (United States)

We discuss our implementation of targeted pre-reading assignments with an associated online quiz in two science classes, one physics and one biology. Our goal was to create a pre-class assignment that helped students recognize the benefits of reading before class. Students were asked to take part in a survey about how and why they completed the pre-reading assignments. We found that 80% of students read the textbook on a regular basis, which is much higher than reported in previous studies. Also nearly 3/4 of students reported using productive strategies for completing the reading assignment and cited reading prior to class as being helpful to their learning. Student self-reports were checked against electronic logs and were found to be highly accurate. Moreover, these results were nearly identical between the physics and biology courses.

Heiner, Cynthia E.; Banet, Amanda I.; Wieman, Carl

2014-10-01

293

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

294

Heuristics to solve the integrated airline crew assignment problem  

Scientific Electronic Library Online (English)

Full Text Available A typical problem related to airline crew management consists of optimally assigning the required crew members to planned flights for a given period of time, while complying with a variety of labor regulations, safety rules and policies of the airline. This problem, called crew assignment problem (C [...] AP), is of the NPHard class. So, it is usually divided into two independent subproblems, crew pairing problem (CPP) and crew rostering problem (CRP), modeled and solved sequentially. This division does not provide a global treatment to the CAP in terms of total cost and quality of the final solution. The state of the art involves the integrated solution of CAP, with both subproblems (CPP and CRP) solved simultaneously. It still requires high computational effort. Its combinatorial nature makes it difficult (or even impossible) to be solved by exact methods. The methodology proposed in this research provides an integrated solution of the CAP with heuristic procedures. The methodology was tested to solve instances related to small and medium-sized Brazilian airlines. The results were also compared with those obtained through an exact model adapted from the literature.

Wagner P., Gomes; Nicolau D. F., Gualda.

2015-01-01

295

Student life - How to avoid plagiarism.  

Science.gov (United States)

Academic assessments are a challenging part of nurse education. Students are expected to review and analyse literature from many sources and integrate this evidence into their assignments. PMID:25804185

Turville, Nathalie

2015-03-25

296

Association Rule Generation for Student Performance Analysis using Apriori Algorithm  

Directory of Open Access Journals (Sweden)

Full Text Available The objective of the educational institution that is producing good results in their academic exams can be achieved by using the data mining techniques which can be applied to predict the performance of the students and to impart the quality of education in the educational institutions. Data mining is used to extract meaningful information and to develop relationships among variables stored in large data set. In this paper, Apriori algorithm is used which extracts the set of rules, specific to each class and analyzes the given data to classify the student based on their performance in academics. Students are classified based on their involvement in doing assignment, internal assessment tests, attendance etc., which helps to predict the performance of the student based on the pattern extracted from the educational database. This would help to identify the average and below average students and to improve their performance to provide good results. This analysis further helps matching organization„s requirement with students profile to provide placement for the students. Also, the interestingness of a rule is measured using lift in itself and as a part in formulae. The range of values that lift may take is used to normalize lift so that it is more effective as a measure of interestingness. This standardization is extended to account for minimum support and confidence thresholds.

D. Magdalene Delighta Angeline

2013-04-01

297

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

2004-01-01

298

The impact of active/cooperative instruction on beginning nursing student learning strategy preference.  

Science.gov (United States)

Rapid changes in the nursing field and high demand for practicing nurses put pressure on nursing faculty to educate increasing numbers of nursing students, often without corresponding increases in resources. Although the use of active and cooperative instruction methods in the classroom has been associated with improved student learning, these practices require increased effort on the part of both faculty and students. In addition, little is known about whether these methods influence student nurses' use of these more elaborative processing strategies in their independent study. The purpose of this quasi-experimental investigation was to identify the impact of incorporating active and cooperative classroom instructional activities on student preference for teaching methods and use of learning strategies in independent study. A convenience sample of beginning baccalaureate nursing students at a large Mid-Atlantic University was randomly assigned by the registrar to two class sections. Students in one section received primarily active/cooperative instruction, while the other received primarily traditional lecture-based instruction. Results indicated that student nurses exposed to active/cooperative instructional methods had an increased preference for these methods after a semester of instruction, while those exposed to traditional instruction had a higher preference for traditional methods. In addition, students participating in active class instruction reported increased preference for more elaborative independent study strategies, although overall preference for both groups indicated a reliance on surface study strategies of memorization and recall. Implications for use of instruction and student testing methodologies are presented. PMID:17030077

Sand-Jecklin, Kari

2007-07-01

299

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

300

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.

301

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

302

Investigating the relationship between quality, format and delivery of feedback for written assignments in higher education  

DEFF Research Database (Denmark)

Feedback can have a great impact on student learning. However, in order for it to be effective, feedback needs to be of high quality. Electronic marking has been one of the latest adaptations of technology in teaching and offers a new format of delivering feedback. There is little research investigating the impact the format of feedback has on quality of feedback and subsequently on student learning. This study sets out to investigate the impact paper-based and electronic methods of assignment submission and return have on students’ and markers’ perceived quality of feedback. Students and markers on an undergraduate course were asked to complete an anonymous online survey investigating their perceptions of quality, format and timeliness of feedback delivered electronically and on paper. The results showed that marking and providing feedback electronically was an acceptable method for markers, reporting improved speed and consistency of marking. There was no increase or decrease in satisfaction with the feedback received. Overall, electronic marking was found to be an acceptable method of delivery of feedback on written assignments by both students and markers. The findings of this study suggest that electronic marking can result in more timely feedback for students without impacting on quality.

Sopina, Liza Elizaveta; McNeill, Rob

2015-01-01

303

Using rule-based shot dose assignment in model-based MPC applications  

Science.gov (United States)

Shrinking feature sizes and the need for tighter CD (Critical Dimension) control require the introduction of new technologies in mask making processes. One of those methods is the dose assignment of individual shots on VSB (Variable Shaped Beam) mask writers to compensate CD non-linearity effects and improve dose edge slope. Using increased dose levels only for most critical features, generally only for the smallest CDs on a mask, the change in mask write time is minimal while the increase in image quality can be significant. This paper describes a method combining rule-based shot dose assignment with model-based shot size correction. This combination proves to be very efficient in correcting mask linearity errors while also improving dose edge slope of small features. Shot dose assignment is based on tables assigning certain dose levels to a range of feature sizes. The dose to feature size assignment is derived from mask measurements in such a way that shape corrections are kept to a minimum. For example, if a 50nm drawn line on mask results in a 45nm chrome line using nominal dose, a dose level is chosen which is closest to getting the line back on target. Since CD non-linearity is different for lines, line-ends and contacts, different tables are generated for the different shape categories. The actual dose assignment is done via DRC rules in a pre-processing step before executing the shape correction in the MPC engine. Dose assignment to line ends can be restricted to critical line/space dimensions since it might not be required for all line ends. In addition, adding dose assignment to a wide range of line ends might increase shot count which is undesirable. The dose assignment algorithm is very flexible and can be adjusted based on the type of layer and the best balance between accuracy and shot count. These methods can be optimized for the number of dose levels available for specific mask writers. The MPC engine now needs to be able to handle different dose levels and requires a model which accurately predicts mask shapes at all dose levels used. The calibration of such a model is described in a separate paper [1]. In summary this paper presents an efficient method for combining rule-based VSB shot dose assignment with modelbased shape corrections in MPC. This method expands the printability of small features sizes without the need for increasing the base dose of the e-beam writer which reduces backscattering and increases the lifetime of the electron gun of the writer.

Bork, Ingo; Buck, Peter; Wang, Lin; Müller, Uwe

2014-10-01

304

An Experiment of Introducing ePortfolio to Evaluate Students in the Tunisian Context  

Directory of Open Access Journals (Sweden)

Full Text Available We present an experiment of ePortfolio use as a tool to assess students in a module taught in a master degree class. Each student is required to deposit an abstract for each chapter in his own ePortfolio. A mark is given to each assignment and then the average of all these marks is considered for the success criteria. At the end of the semester, students are submitted a questionnaire in order to evaluate their appreciation of the ePortfolio use. The formal analysis of the questionnaire confirms our overall idea that most students appreciate the ePortfolio use. They also express their wishes to extend the ePortfolio to the other modules. The teacher's perspective for this experiment is also presented.

Hedia Mhiri Sellami

2012-12-01

305

AN EXPLORATORY STUDY OF LECTURERS' VIEWS OF OUT-OF-CLASS ACADEMIC COLLABORATION AMONG STUDENTS  

Directory of Open Access Journals (Sweden)

Full Text Available This article reports an exploratory study of lecturers' perceptions of out-of-class academic collaboration (OCAC among students at a large Singapore university. Two types of OCAC were investigated: collaboration initiated by students, e.g., groups decide on their own to meet to prepare for exams, and collaboration required by teachers, e.g., teachers assign students to do projects in groups. Data were collected via one-on-one interviews with 18 faculty members from four faculties at the university. Findings suggest that OCAC, especially of a teacher-required kind, is fairly common at the university. Faculty members' views on factors affecting the success of OCAC are discussed for the light they might shed on practices to enhance the effectiveness of OCAC.

David Crookall

2001-01-01

306

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

307

Meeting Oregon's New High School Math Graduation Requirements: Examining Student Enrollment and Teacher Availability. Summary. Issues & Answers. REL 2012-No. 126  

Science.gov (United States)

Disaggregating the data across four school variables--size, locale, racial/ethnic minority population, and population eligible for free or reduced-price lunch--this study examines the extent to which Oregon grade 9-12 students enrolled in high school math courses during 2006/07 and 2007/08 would not have been on track to graduate had the new…

Raphael, Jacqueline; Sage, Nicole; Ishimaru, Ann

2012-01-01

308

LOGIC BASED RULES FOR PROJECT ASSIGN PREDICTION  

OpenAIRE

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 tryin...

Ashu Singla

2011-01-01

309

ACO for the surgical cases assignment problem.  

Science.gov (United States)

This paper addresses the Surgical Case Assignment Problem with an objective of minimizing the total unexploited and operating cost. A two-stage ant colony optimization (ACO) algorithm is introduced and its performance is evaluated by comparing its solutions to the solutions of Branch and Bound and a global solver. The results show that ACO outperformed the other algorithms and reached better solutions in a faster computational time. PMID:21225322

Rizk, Charbel; Arnaout, Jean-Paul

2012-06-01

310

Heuristic Algorithms for Assigning Hispanic Ethnicity  

OpenAIRE

We compared several techniques for assigning Hispanic ethnicity to records in data systems where this information may be missing, variously making use of country of origin, surname, race, and county of residence. We considered an algorithm in use by the North American Association of Central Cancer Registries (NAACCR), a variation of this developed by the authors, a “fast and frugal” algorithm developed with the aid of recursive partitioning methods, and conventional logistic regression. W...

Boscoe, Francis P.; Schymura, Maria J.; Zhang, Xiuling; Kramer, Rachel A.

2013-01-01

311

Case assignment by prepositions in Russian aphasia  

OpenAIRE

The present project investigated linguistic abilities of fluent and non-fluent aphasic speakers who suffer form a language disorder that usually results from a brain injury to the left hemisphere (e.g., a stroke). The project included a series of experiments to investigate case assigning abilities by prepositions of aphasic speakers of Russian – morphologically rich language which main properties make it particularly interesting for research of case. Narrative speech of non-fluent aphasic s...

Trofimova, Maria

2009-01-01

312

Power Assignment Problems in Wireless Communication  

CERN Document Server

A fundamental class of problems in wireless communication is concerned with the assignment of suitable transmission powers to wireless devices/stations such that the resulting communication graph satisfies certain desired properties and the overall energy consumed is minimized. Many concrete communication tasks in a wireless network like broadcast, multicast, point-to-point routing, creation of a communication backbone, etc. can be regarded as such a power assignment problem. This paper considers several problems of that kind; for example one problem studied before in \\cite{Carrots, Bilo} aims to select and assign powers to $k$ of the stations such that all other stations are within reach of at least one of the selected stations. We improve the running time for obtaining a $(1+\\epsilon)$-approximate solution for this problem from $n^{((\\alpha/\\epsilon)^{O(d)})}$ as reported by Bilo et al. (\\cite{Bilo}) to $O(n+ {(\\frac{k^{2d+1}}{\\epsilon^d})}^{\\min{\\{2k, (\\alpha/\\epsilon)^{O(d)} \\}}})$ that is, we obtain a ru...

Funke, S; Lotker, Z; Naujoks, R; Funke, Stefan; Laue, Soeren; Lotker, Zvi; Naujoks, Rouven

2006-01-01

313

Predicting Satisfaction with Group Work Assignments  

Science.gov (United States)

Universities are increasingly using group based assessment tasks; however, as with work-place teams, such tasks often elicit mixed feelings from participants. This study investigated factors that may predict student satisfaction with group work at university. Final-year business students completed a questionnaire addressing experiences of group…

Burdett, Jane; Hastie, Brianne

2009-01-01

314

Measuring Students’ Persistence on Unfamiliar Mathematical Tasks  

OpenAIRE

182 students responded to a number of Likert-scale items regarding their persistence on mathematical tasks. Rasch analysis was then used to construct a measure of persistence from their responses and to assign persistence scores to each student. The same students, all of whom were enrolled in the first year of a third-level programme, also completed a 30-minute test involving mathematics items from PISA. The latter, although commensurate with the students' level of mathematical...

Breen, Sinead; Cleary, Joan; O Shea, Ann

2010-01-01

315

Models of organizational-pedagogical terms of physical education of students of I-IV of courses.  

Directory of Open Access Journals (Sweden)

Full Text Available The article presents a model of organizational-pedagogical conditions of physical education students I-IV courses and made an analysis of problems of physical education students, which relate to the organization and content of the educational process in relation to problems of professional-applied physical training and motivation for physical perfection of youth. It is proposed the basic requirements for a model of physical education. It is developed a new structure of the Department of Physical Education, which includes its divisions and refined assignments of each structural unit.

Turchina N.I.

2011-05-01

316

More reliable protein NMR peak assignment via improved 2-interval scheduling.  

Science.gov (United States)

Protein NMR peak assignment refers to the process of assigning a group of "spin systems" obtained experimentally to a protein sequence of amino acids. The automation of this process is still an unsolved and challenging problem in NMR protein structure determination. Recently, protein NMR peak assignment has been formulated as an interval scheduling problem (ISP), where a protein sequence P of amino acids is viewed as a discrete time interval I (the amino acids on P one-to-one correspond to the time units of I), each subset S of spin systems that are known to originate from consecutive amino acids from P is viewed as a "job" j(s), the preference of assigning S to a subsequence P of consecutive amino acids on P is viewed as the profit of executing job j(s) in the subinterval of I corresponding to P, and the goal is to maximize the total profit of executing the jobs (on a single machine) during I. The interval scheduling problem is max SNP-hard in general; but in the real practice of protein NMR peak assignment, each job j(s) usually requires at most 10 consecutive time units, and typically the jobs that require one or two consecutive time units are the most difficult to assign/schedule. In order to solve these most difficult assignments, we present an efficient 13/7-approximation algorithm for the special case of the interval scheduling problem where each job takes one or two consecutive time units. Combining this algorithm with a greedy filtering strategy for handling long jobs (i.e., jobs that need more than two consecutive time units), we obtain a new efficient heuristic for protein NMR peak assignment. Our experimental study shows that the new heuristic produces the best peak assignment in most of the cases, compared with the NMR peak assignment algorithms in the recent literature. The above algorithm is also the first approximation algorithm for a nontrivial case of the well-known interval scheduling problem that breaks the ratio 2 barrier. PMID:15767773

Chen, Zhi-Zhong; Lin, Guohui; Rizzi, Romeo; Wen, Jianjun; Xu, Dong; Xu, Ying; Jiang, Tao

2005-03-01

317

Efficient ?-tensor determination and NH assignment of paramagnetic proteins  

International Nuclear Information System (INIS)

Anisotropic magnetic susceptibility tensors ? of paramagnetic metal ions are manifested in pseudocontact shifts, residual dipolar couplings, and other paramagnetic observables that present valuable long-range information for structure determinations of protein-ligand complexes. A program was developed for automatic determination of the ?-tensor anisotropy parameters and amide resonance assignments in proteins labeled with paramagnetic metal ions. The program requires knowledge of the three-dimensional structure of the protein, the backbone resonance assignments of the diamagnetic protein, and a pair of 2D 15N-HSQC or 3D HNCO spectra recorded with and without paramagnetic metal ion. It allows the determination of reliable ?-tensor anisotropy parameters from 2D spectra of uniformly 15N-labeled proteins of fairly high molecular weight. Examples are shown for the 185-residue N-terminal domain of the subunit ? from E. coli DNA polymerase III in complex with the subunit ? and La3+ in its diamagnetic and Dy3+, Tb3+, and Er3+ in its paramagnetic form

318

BUNKER : Documentation and translation of a WWII bunker. A first year assignment. Aarhus school of Architecture  

DEFF Research Database (Denmark)

This book demonstrates how the WWII bunkers can serve as an important study object for students of Architecture. The presented assignment is for 1. year students at the Aarhus school of Architecture. The overall scheme of the book falls in two categories. One being the documentations of the bunkers. The other being the translation and architectural respond to the bunker. The book i coherent with a new strategy at the Aarhus school of Architecture where research methods are implemented in teaching at an early stage of the study.

Gammelgaard Nielsen, Anders; Diaz, Pauline

2011-01-01

319

47 CFR 73.3597 - Procedures on transfer and assignment applications.  

Science.gov (United States)

...permit or transfer of control shall, in the case...or for the transfer of control of the permittee of...However, a hearing is not mandatory in cases coming within...requirements, in the light of such anticipated capital...assignment or transfer of control. An evidentiary...

2010-10-01

320

Learning to Assign Lexical Stress during Reading Aloud: Corpus, Behavioral, and Computational Investigations  

Science.gov (United States)

Models of reading aloud have tended to focus on the mapping between graphemes and phonemes in monosyllables. Critical adaptations of these models are required when considering the reading of polysyllables, which constitute over 90% of word types in English. In this paper, we examined one such adaptation--the process of stress assignment in…

Arciuli, Joanne; Monaghan, Padraic; Seva, Nada

2010-01-01

321

Requirements Engineering Process for Sales Management System : Case study: Tin Phong Trading Co., Ltd.  

OpenAIRE

The starting point of this thesis project was to analyse the system and software requirements for the Sales Management System to help Tin Phong Trading Co., Ltd. as a final assignment for the student to get a Bachelor’s Degree in Business Information Technology. Tin Phong Trading Co., Ltd. is trading company in Ho Chi Minh city, Vietnam. The main business of the company is to trade motorcycle spare-parts in wholesale or retail within the local market. The sales management is still using...

Tang, Thanh Duc

2009-01-01

322

Developing a Model of Teaching English to Primary School Students  

Directory of Open Access Journals (Sweden)

Full Text Available Under the auspices of the Centre for Curriculum Decelopment, a three-cycle action research study was carried out in three primary schools in Yogyakarta with the aim of developing a model of teaching English to primary school students. The model consists of five parts: Opening, Content Focus, Language Focus, Communication Focus, and Closing. The model, requiring that learning tasks involve active participation of students, both physically and mentally, supported by the use of media suitable for young learners, was developmentally fully implemented. The results showed that efforts were mostly made to establish teacher-student rapport in the first cycle, in which success in classroom management was gradually reached. This led to the easier second cycle, which was characterized by increasing teacher talk (classroom English, the use of interesting media, and more active students' participation in the tasks involving various games which successfully elicited students' English. All of this was solidified in the third cycle. The conclusion is that with the three aspects being focused successively, teacher-student good rapport being established, various media being used, and competing and cooperative tasks being assigned in balance, joyful and effective learning is likely to occur.

Suwarsih Madya

2004-01-01

323

47 CFR 90.723 - Selection and assignment of frequencies.  

Science.gov (United States)

...false Selection and assignment of frequencies. 90.723 Section 90.723...Regulations Governing Licensing and Use of Frequencies in the 220-222 MHz Band § 90.723 Selection and assignment of frequencies. (a) Phase II...

2010-10-01

324

47 CFR 80.1165 - Assignment and use of frequencies.  

Science.gov (United States)

...2010-10-01 false Assignment and use of frequencies. 80.1165 Section 80.1165 Telecommunication...Telephony § 80.1165 Assignment and use of frequencies. Frequencies for general radiotelephone purposes are...

2010-10-01

325

Evolution vs. Creationism Term Paper Assignment  

Science.gov (United States)

Students are asked to write a formal paper related to the Evolution and Creationism. Students may choose to write a persuasive argument paper, an analytical (compare and contrast) style paper, or an objective research-style paper. Students explore a major question that includes at least one of the topics explored through class discussion. Some examples include: discussing whether creationism belongs in public schools, exploring the evolution of the creationist movement in the United States or how public perceptions of science has changed since the formal introduction of the theory of evolution.

Katherine Bulinski

326

SCRAED - Simple and Complex Random Assignment in Experimental Designs  

OpenAIRE

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

327

On the problem of resonance assignments in solid state NMR of uniformly (15)N,(13)C-labeled proteins.  

Science.gov (United States)

Determination of accurate resonance assignments from multidimensional chemical shift correlation spectra is one of the major problems in biomolecular solid state NMR, particularly for relative large proteins with less-than-ideal NMR linewidths. This article investigates the difficulty of resonance assignment, using a computational Monte Carlo/simulated annealing (MCSA) algorithm to search for assignments from artificial three-dimensional spectra that are constructed from the reported isotropic (15)N and (13)C chemical shifts of two proteins whose structures have been determined by solution NMR methods. The results demonstrate how assignment simulations can provide new insights into factors that affect the assignment process, which can then help guide the design of experimental strategies. Specifically, simulations are performed for the catalytic domain of SrtC (147 residues, primarily ?-sheet secondary structure) and the N-terminal domain of MLKL (166 residues, primarily ?-helical secondary structure). Assuming unambiguous residue-type assignments and four ideal three-dimensional data sets (NCACX, NCOCX, CONCA, and CANCA), uncertainties in chemical shifts must be less than 0.4ppm for assignments for SrtC to be unique, and less than 0.2ppm for MLKL. Eliminating CANCA data has no significant effect, but additionally eliminating CONCA data leads to more stringent requirements for chemical shift precision. Introducing moderate ambiguities in residue-type assignments does not have a significant effect. PMID:25797013

Tycko, Robert

2015-04-01

328

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

329

Classroom Texts: An Investigation of the Correlative Features of Assigned Reading and Test Performance. Applied Educational Research and Evaluation.  

Science.gov (United States)

The correlative features of assigned reading and in-class performance were evaluated for 75 students enrolled in psychology classes in two community colleges in Maryland. Four tests and a final examination were used to measure in-class performance as a function of rates of reading and times of attendance. Control for content was attempted by…

Rochlin, Joyce T.; Weislogel, Louis F.

330

Electre tri method used to storage location assignment into categories  

Scientific Electronic Library Online (English)

Full Text Available 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.

2013-08-01

331

The NASA/NSERC Student Airborne Research Program Land Focus Group - a Paid Training Program in Multi-Disciplinary STEM Research for Terrestrial Remote Sensing  

Science.gov (United States)

The Student Airborne Research Program (SARP) of the National Aeronautics and Space Administration (NASA) and the National Suborbital Education and Research Center (NSERC) is a unique six week multidisciplinary paid training program which directly integrates students into the forefront of airborne remote sensing science. Students were briefly trained with one week of lectures and laboratory exercises and then immediately incorporated into ongoing research projects which benefit from access to the DC-8 airborne platform and the MODIS-ASTER Airborne Simulator (MASTER) sensor. Students were split into three major topical categories of Land, Ocean, and Air for the data collection and project portions of the program. This poster details the techniques and structure used for the student integration into ongoing research, professional development, hypothesis building and results as developed by the professor and mentor of the Land focus group. Upon assignment to the Land group, students were issued official research field protocols and split into four field specialty groups with additional specialty reading assignments. In the field each group spent more time in their respective specialty, but also participated in all field techniques through pairings with UC Davis research team members using midday rotations. After the field campaign, each specialty group then gave summary presentations on the techniques, preliminary results, and significance to overall group objectives of their specialty. Then students were required to submit project proposals within the bounds of Land airborne remote sensing science and encouraging, but not requiring the use of the field campaign data. These proposals are then reviewed by the professor and mentor and students are met with one by one to discuss the skills of each student and objectives of the proposed research project. The students then work under the supervision of the mentor and benefit again from professor feedback in a formal practice presentation session. At the end of the six week program, students present to all SARP program focus groups, mentors, professors, and, in addition, NSERC and NASA airborne science and education program directors and personnel.

Kefauver, S. C.; Ustin, S.; Davey, S. W.; Furey, B. J.; Gartner, A.; Kurzweil, D.; Siebach, K. L.; Slawsky, L.; Snyder, E.; Trammell, J.; Young, J.; Schaller, E.; Shetter, R. E.

2011-12-01

332

47 CFR 90.175 - Frequency coordinator requirements.  

Science.gov (United States)

...2010-10-01 false Frequency coordinator requirements. 90.175 Section 90.175 Telecommunication FEDERAL COMMUNICATIONS COMMISSION... Policies Governing the Assignment of Frequencies § 90.175 Frequency coordinator requirements....

2010-10-01

333

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

2013-08-01

334

Measuring is more than assigning numbers  

OpenAIRE

'Measurement is fundamental to research-related activities in social science (hence this Handbook). In my own field of education research, perhaps the most discussed element of education lies in test scores. Examination results are measurements, the number of students attaining a particular standard in a test is a measurement; indeed the standard of a test is a measurement. The allocation of places at school, college or university, student:teacher ratios, funding plans, school timetables, sta...

Gorard, Stephen

2010-01-01

335

Understanding Student Computational Thinking with Computational Modeling  

CERN Document Server

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

336

Understanding student computational thinking with computational modeling  

Science.gov (United States)

Recently, the National Research Council's framework for next generation science standards highlighted "computational thinking" as one of its "fundamental practices". 9th Grade 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 observational) terms tended to have more success in the programming exercise.

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

2013-01-01

337

Mask model calibration for MPC applications utilizing shot dose assignment  

Science.gov (United States)

Shrinking feature sizes and the need for tighter CD (Critical Dimension) control require the introduction of new technologies in mask making processes. One of those methods is the dose assignment of individual shots on VSB (Variable Shaped Beam) mask writers to compensate CD non-linearity effects and improve dose edge slope. Using increased dose levels only for most critical features, generally only for the smallest CDs on a mask, the change in mask write time is minimal while the increase in image quality can be significant. However, this technology requires accurate modeling of the mask effects, especially the CD/dose dependencies. This paper describes a mask model calibration flow for Mask Process Correction (MPC) applications with shot dose assignment. The first step in the calibration flow is the selection of appropriate test structures. For this work, a combination of linespace patterns as well as a series of contact patterns are used for calibration. Features sizes vary from 34 nm up to several micrometers in order to capture a wide range of CDs and pattern densities. After mask measurements are completed the results are carefully analyzed and measurements very close to the process window limitation and outliers are removed from the data set. One key finding in this study is that by including patterns exposed at various dose levels the simulated contours of the calibrated model very well match the SEM contours even if the calibration was based entirely on gauge based CD values. In the calibration example shown in this paper, only 1D line and space measurements as well as 1D contact measurements are used for calibration. However, those measurements include patterns exposed at dose levels between 75% and 150% of the nominal dose. The best model achieved in this study uses 2 e-beam kernels and 4 kernels for the simulation of development and etch effects. The model error RMS on a large range of CD down to 34 nm line CD is 0.71 nm. The calibrated model is then used to generate 2D contours for line ends, space ends and contacts and those contours are compared to SEM images. For all patterns, including those very close to the resolution limit, very good contour overlay is achieved. It appears that by including the various dose levels in the calibration a very good separation of the e-beam model components from the etch components is possible and that this also results in very accurate 2D model quality. In conclusion, very accurate mask model calibration is achieved for mask processes using shot dose assignment. Standard test patterns can be used for calibration if they include the dose variations intended for correction.

Bork, Ingo; Buck, Peter; Paninjath, Sankaranarayanan; Mishra, Kushlendra; Bürgel, Christian; Standiford, Keith; Chua, Gek Soon

2014-10-01

338

Am I Missing Something? The Effects of Absence from Class on Student Performance  

Science.gov (United States)

We analyse a rich dataset of Economics students at a UK university to identify causal effects of class absence on student performance, exploiting the random assignment of students and information on students' class timetables to avoid selection problems. We use panel properties of the data to control for unobserved student factors such as ability…

Arulampalam, Wiji; Naylor, Robin A.; Smith, Jeremy

2012-01-01

339

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

340

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

341

Competencias Sociales requeridas y observadas en alumnos de Medicina Veterinaria: la visión de los docentes - Social Competence observed and required in Veterinary students: teacher’s vision  

Directory of Open Access Journals (Sweden)

Full Text Available ResumenEn la Facultad de Ciencias Veterinarias de la Universidad Nacional delLitoral (Argentina se está realizando una investigación en torno a las Competencias Sociales reales y esperadas en los futuros MédicosVeterinarios, con la intención de describir las habilidades sociales con las que los alumnos llegan a la universidad, propiciadas por la escuela y el ambiente familiar, y las competencias que es deseable que desarrollen para su adecuada inserción universitaria, y posteriormente en el ámbito laboral. Como primer objetivo se planteó recoger información respecto de la visión de los docentes acerca de las competencias sociales esperadas y efectivamente observadas en sus alumnos. Tomando como referencia al Programa TE COMPETE (Universidad de Cantabria – España y Proyecto Tuning América Latina, se encuestaron cuarenta docentes. Del análisis de las encuestas se pudo observar que las competencias esperadas en los estudiantes son numéricamente muy inferiores a las observadas en ellos, siendo más notoria la diferencia en las competencias participativas ypersonales. La falta de habilidades de comunicación y de liderazgo fueremarcada por los docentes, quienes, a su vez, consideraron como muyimportantes a las competencias personales e interpersonales para eldesarrollo del futuro Medico Veterinario. Se concluye que resultaríaconveniente iniciar un camino de cambio que apunte a fomentar yfortalecer las competencias sociales de alumnos de Medicina Veterinaria. Para promover este cambio será necesario que el profesor cuente con espacios que le permitan la adquisición de estrategias metodológicas que faciliten su actuación didáctica.SummaryIn the Faculty of Veterinary Science (Universidad Nacional del Litoral – Argentina is being developed an investigation related to Social Competences already acquired and those expected in future Veterinarians. The aim of the study is to describe social skills that are already acquired by students at the beginning of their course of studies, propitiated by scholar and family environment, and social skills that are desirable to develop in students for a proper university insertion, and subsequently, in the working sphere. Firstly, it was gathered information regarding the teacher’s visionabout social competence, expected and actually observed in their students. Having taken as a reference the program called “TE COMPETE” (Cantabria University – Spain and the Latin America Tuning Proyect, forty teachers were surveyed. From the analysis of the surveys, it was observed that the competences expected in students were fewer than those seen in them, specially the participative and personal competences. The lack of communication skills and leadership was highlighted by teachers, who, in turn, considered as very important personal and interpersonal skills to develop in the future Medical Veterinary. We conclude that it would be convenient to initiate a way of change in order to encourage and strengthen social competences in Veterinary students. To promote this change it will be necessary that teachers have a place that allow the acquisition of methodological strategies to facilitate their teaching performance.

Cadoche, Lilian

2010-03-01

342

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

343

Evaluating students' evaluations of professors  

OpenAIRE

This paper contrasts measures of teacher effectiveness with the students' evaluations for the same teachers using administrative data from Bocconi University (Italy). The effectiveness measures are estimated by comparing the subsequent performance in follow-on coursework of students who are randomly assigned to teachers in each of their compulsory courses. We find that, even in a setting where the syllabuses are fixed and all teachers in the same course present exactly the same material, teac...

Braga, Michela; Paccagnella, Marco; Pellizzari, Michele

2011-01-01

344

Optimization of orbital assignment and specification of service areas in satellite communications  

Science.gov (United States)

The mathematical nature of the orbital and frequency assignment problem for communications satellites is explored, and it is shown that choosing the correct permutations of the orbit locations and frequency assignments is an important step in arriving at values which satisfy the signal-quality requirements. Two methods are proposed to achieve better spectrum/orbit utilization. The first, called the delta S concept, leads to orbital assignment solutions via either mixed-integer or restricted basis entry linear programming techniques; the method guarantees good single-entry carrier-to-interference ratio results. In the second, a basis for specifying service areas is proposed for the Fixed Satellite Service. It is suggested that service areas should be specified according to the communications-demand density in conjunction with the delta S concept in order to enable the system planner to specify more satellites and provide more communications supply.

Wang, Cou-Way; Levis, Curt A.; Buyukdura, O. Merih

1987-01-01

345

Optimization of orbital assignment and specification of service areas in satellite communications  

Science.gov (United States)

The mathematical nature of the orbital and frequency assignment problem for communications satellites is explored, and it is shown that choosing the correct permutations of the orbit locations and frequency assignments is an important step in arriving at values which satisfy the signal-quality requirements. Two methods are proposed to achieve better spectrum/orbit utilization. The first, called the delta S concept, leads to orbital assignment solutions via either mixed-integer or restricted basis entry linear programming techniques; the method guarantees good single-entry carrier-to-interference ratio results. In the second, a basis for specifying service areas is proposed for the Fixed Satellite Service. It is suggested that service areas should be specified according to the communications-demand density in conjunction with the delta S concept in order to enable the system planner to specify more satellites and provide more communications supply.

Wang, Cou-Way; Levis, Curt A.; Buyukdura, O. Merih

1987-02-01

346

Optimal Index Assignment for Multiple Description Scalar Quantization  

CERN Document Server

We provide a method for designing an optimal index assignment for scalar K-description coding. The method stems from a construction of translated scalar lattices, which provides a performance advantage by exploiting a so-called staggered gain. Interestingly, generation of the optimal index assignment is based on a lattice in K-1 dimensional space. The use of the K-1 dimensional lattice facilitates analytic insight into the performance and eliminates the need for a greedy optimization of the index assignment. It is shown that that the optimal index assignment is not unique. This is illustrated for the two-description case, where a periodic index assignment is selected from possible optimal assignments and described in detail. The new index assignment is applied to design of a K-description quantizer, which is found to outperform a reference K-description quantizer at high rates. The performance advantage due to the staggered gain increases with increasing redundancy among the descriptions.

Zhang, Guoqiang; Kleijn, W Bastiaan

2011-01-01

347

Highly automated protein backbone resonance assignment within a few hours: the strategy and software package  

International Nuclear Information System (INIS)

Sequential resonance assignment represents an essential step towards the investigation of protein structure, dynamics, and interaction surfaces. Although the experimental sensitivity has significantly increased in recent years, with the availability of high field magnets and cryogenically cooled probes, resonance assignment, even of small globular proteins, still generally requires several days of data collection and analysis using standard protocols. Here we introduce the BATCH strategy for fast and highly automated backbone resonance assignment of 13C, 15N-labelled proteins. BATCH makes use of the fast data acquisition and analysis tools BEST, ASCOM, COBRA, and HADAMAC, recently developed in our laboratory. An improved Hadamard encoding scheme, presented here, further increases the performance of the HADAMAC experiment. A new software platform, interfaced to the NMRView software package, has been developed that enables highly automated NMR data processing and analysis, sequential resonance assignment, and 13C chemical shift extraction. We demonstrate for four small globular proteins that sequential resonance assignment can be routinely obtained within a few hours, or less, in a highly automated and robust way

348

Automated sequence-specific protein NMR assignment using the memetic algorithm MATCH  

International Nuclear Information System (INIS)

MATCH (Memetic Algorithm and Combinatorial Optimization Heuristics) is a new memetic algorithm for automated sequence-specific polypeptide backbone NMR assignment of proteins. MATCH employs local optimization for tracing partial sequence-specific assignments within a global, population-based search environment, where the simultaneous application of local and global optimization heuristics guarantees high efficiency and robustness. MATCH thus makes combined use of the two predominant concepts in use for automated NMR assignment of proteins. Dynamic transition and inherent mutation are new techniques that enable automatic adaptation to variable quality of the experimental input data. The concept of dynamic transition is incorporated in all major building blocks of the algorithm, where it enables switching between local and global optimization heuristics at any time during the assignment process. Inherent mutation restricts the intrinsically required randomness of the evolutionary algorithm to those regions of the conformation space that are compatible with the experimental input data. Using intact and artificially deteriorated APSY-NMR input data of proteins, MATCH performed sequence-specific resonance assignment with high efficiency and robustness

349

Intellectual disability nursing assessment: student reflections.  

Science.gov (United States)

Nursing students, Paula and Lynda, reflect on their first academic assessment of their 4-year intellectual disability nursing course. The reflection is conducted by the second and third authors of this article, and is guided by Gibbs' (1998) cycle, highlighting the positive and negative aspects of their 'workbook' assignment during their first academic semester. Overall, the use of the workbook as an assessment method enabled the students to discover the importance of time management, attendance at lectures, database searching, referencing and academic writing. The assignment enabled the students to be more prepared for clinical practice placement, and develop a basis for future learning and knowledge of intellectual disability. PMID:22584930

Doody, Owen; McInerney, Paula; Linnane, Lynda

350

The Effect of Guided Fantasy on the Creative Thinking and Writing Ability of Gifted Students.  

Science.gov (United States)

To study the effects of guided fantasy on the creative thinking of students, 51 fourth, fifth, and sixth grade students were assigned to one of two groups (relaxation techniques and guided fantasy or an arithmetic lesson). (PHR)

Hershey, Myrliss; Kearns, Phyllis

1979-01-01

351

Teaching Students to Listen Empathically.  

Science.gov (United States)

Asserts the importance of empathy as a necessary condition for health service professionals. Describes classroom techniques and assignments that teach and assess empathic-listening skills. Includes students' ratings of 14 learning activities designed to enhance listening skills and empathy. (CFR)

Fernald, Peter S.

1995-01-01

352

Assignment of uncertainties to scientific data  

International Nuclear Information System (INIS)

Long-standing problems of uncertainty assignment to scientific data came into a sharp focus in recent years when uncertainty information ('covariance files') had to be added to application-oriented large libraries of evaluated nuclear data such as ENDF and JEF. Question arouse about the best way to express uncertainties, the meaning of statistical and systematic errors, the origin of correlation and construction of covariance matrices, the combination of uncertain data from different sources, the general usefulness of results that are strictly valid only for Gaussian or only for linear statistical models, etc. Conventional statistical theory is often unable to give unambiguous answers, and tends to fail when statistics is bad so that prior information becomes crucial. Modern probability theory, on the other hand, incorporating decision information becomes group-theoretic results, is shown to provide straight and unique answers to such questions, and to deal easily with prior information and small samples. (author). 10 refs

353

The importance of active learning and practice on the students' mastery of pharmacokinetic calculations for the intermittent intravenous infusion dosing of antibiotics  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Estimation of pharmacokinetic parameters after intermittent intravenous infusion (III of antibiotics, such as aminoglycosides or vancomycin, has traditionally been a difficult subject for students in clinical pharmacology or pharmacokinetic courses. Additionally, samples taken at different intervals during repeated dose therapy require manipulation of sampling times before accurate calculation of the patient-specific pharmacokinetic parameters. The main goal of this study was to evaluate the effectiveness of active learning tools and practice opportunities on the ability of students to estimate pharmacokinetic parameters from the plasma samples obtained at different intervals following intermittent intravenous infusion. Methods An extensive reading note, with examples, and a problem case, based on a patient’s chart data, were created and made available to students before the class session. Students were required to work through the case before attending the class. The class session was devoted to the discussion of the case requiring active participation of the students using a random participation program. After the class, students were given additional opportunities to practice the calculations, using online modules developed by the instructor, before submitting an online assignment. Results The performance of students significantly (P?P? Conclusions Despite being a difficult subject, students achieve mastery of pharmacokinetic calculations for the topic of intermittent intravenous infusion when appropriate active learning strategies and practice opportunities are employed.

Mehvar Reza

2012-11-01

354

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

355

The effectiveness of the new 9th grade biology curriculum on students’ environmental awareness  

OpenAIRE

The aim of this study was to examine the effectiveness of a new 9th grade biology curriculum on students’ environmental awareness. Participants included 91 ninth grade students in a high school in Balikesir during the spring semester of the 2008-2009 academic years. Two classrooms, including 22 and 24 students respectively, were randomly assigned to a control group, and two classrooms, including 22 and 23 students respectively, were assigned to an experimental group. Three instruments were ...

Cetin, Gulcan; Nisanci, Seda Hilal

2010-01-01

356

Competition Between Student Groups in the Protein Production Challenge  

Science.gov (United States)

Converting biological discoveries into commercial-scale processes requires that graduating chemical engineers obtain an understanding of modern bioprocess principles. This paper describes the development and implementation of a five week long protein production project into a multidisciplinary upper level elective course on bioprocess engineering. The protein production project was developed and implemented during the fall 2006 semester and repeated during the fall 2007 semester. A key element of the protein production project was the competition between student groups. Group performance was rated using a production rubric, and the team with the highest score was guaranteed an A on the project. The rubric included equipment rental costs and production bonuses for producing large quantities of protein of high purity. The equipment rental costs were carefully determined to encourage continued student experimentation in the laboratory. The competitive nature of the project captures students driven by achievement or instrumental types of motivation, which are not necessarily engaged by traditional problem-solving homework assignments. Assessment data, including comments on student course evaluations and comparison of student final exam performance with and without the project, will also be discussed.

Connell, Loren

357

Assigning Level in Data-Mining Exercises  

Science.gov (United States)

There is currently much interest in ascribing outcomes to Masters (M) level programmes. It is particularly difficult to define M level outcomes in bioinformatics for students on non-specialist programmes. An approach is described that attempts to discriminate undergraduate from M level in a data-mining exercise. Differentiation of level is based…

Hooley, Paul; Chilton, Ian J.; Fincham, Daron A.; Burns, Alan T.; Whitehead, Michael P.

2007-01-01

358

Political Psychology - Public Political Attitudes Assignment  

Science.gov (United States)

Students were asked to compare their estimates of public opinion on several current issues to the actual values obtained through the analysis of National Surveys. The objective was to explore a common social attribution error and to acquire familiarity with data sources and on-line analysis tools.

Greg Marfleet

359

The Principal's Authority Over Assigned Personnel.  

Science.gov (United States)

The authority of a school principal over teachers, student teachers, teacher aides, and other employees is the subject of this chapter. In order to discharge duties properly, a principal must have the power to enforce prompt obedience to commands. He or she has the inherent authority to curtail any disruptions in the functioning of the school, the…

Evers, Irving C.

360

Evaluating the Effects of Virtual Pair Programming on Students’ Achievement and Satisfaction  

Directory of Open Access Journals (Sweden)

Full Text Available Pair programming is a lightweight software development technique in which two programmers work together at one computer. In literature, many benefits of pair programming have been proposed, such as increased productivity, improved code quality, enhanced job satisfaction and confidence. Although pair programming provides clear pedagogical benefits, its collocation requirement and the limited time during a lab session are serious barriers in the full deployment and evaluation of this programming technique. This paper reports on a study that investigated the effectiveness of Virtual Pair Programming (VPP on student performance and satisfaction in an introductory Java course where students worked collaboratively in pairs on homework programming assignments, using online tools that integrated desktop sharing and real time communication. The results of this study support previous research findings and suggest that VPP is an effective pedagogical tool for flexible collaboration and an acceptable alternative to individual/solo programming experience, regarding productivity, code quality, academic performance and student satisfaction.

Nick Zacharis

2009-09-01

361

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

Directory of Open Access Journals (Sweden)

Full Text Available 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 seven-trait multiple-trait scoring system. The results show that discourse organisation and argumentation, which were the primary focus of classroom study, improved more than other areas. This suggests that tutors should look at writing proficiency in terms of an overall balance of proficiencies and that targeting aspects of student writing can affect this overall balance.

Alasdair Archibald

2001-12-01

362

Using Reflection to Promote Students' Writing Process Awareness  

Science.gov (United States)

In this article, I demonstrate how the use of reflective writing assignments in first-year composition facilitated students' understanding of their own writing process strategies. I first discuss the theoretical roots from which reflective practice among student writers grows. Next, I employ my students' voices to demonstrate that reflection…

Amicucci, Ann N.

2011-01-01

363

Students as Satirists: Encouraging Critique and Comic Release.  

Science.gov (United States)

Encouraging students' use of satire, irony, and parody in college writing assignments is recommended to help students voice their concerns, think critically, and discover how a form of discourse contributes to both form and substance of the writing. Samples of student work illustrating the effectiveness of this approach are offered. (MSE)

Reeves, Carol

1996-01-01

364

Implementation of an agile maintenance mechanic assignment methodology  

Science.gov (United States)

The objective of this research was to develop a decision support system (DSS) to study the impact of introducing new equipment into a medical apparel plant from a maintenance organizational structure perspective. This system will enable the company to determine if their capacity is sufficient to meet current maintenance challenges. The DSS contains two database sets that describe equipment and maintenance resource profiles. The equipment profile specifies data such as mean time to failures, mean time to repairs, and minimum mechanic skill level required to fix each machine group. Similarly, maintenance-resource profile reports information about the mechanic staff, such as number and type of certifications received, education level, and experience. The DSS will then use this information to minimize machine downtime by assigning the highest skilled mechanics to machines with higher complexity and product value. A modified version of the simplex method, the transportation problem, was used to perform the optimization. The DSS was built using the Visual Basic for Applications (VBA) language contained in the Microsoft Excel environment. A case study was developed from current existing data. The analysis consisted of forty-two machine groups and six mechanic categories with ten skill levels. Results showed that only 56% of the mechanic workforce was utilized. Thus, the company had available resources for meeting future maintenance requirements.

Jimenez, Jesus A.; Quintana, Rolando

2000-10-01

365

Students Helping Students  

OpenAIRE

Through drawings and written text created over several weeks, Manju Hawkins reflects on her ideas about leadership. She shares her preference for informal leadership situations characterized by students helping other students.

Manju Hawkins

2008-01-01

366

Do Students Using Electronic Books Display Different Reading Comprehension and Motivation Levels than Students Using Traditional Print Books?  

Science.gov (United States)

The effect of electronic books on the reading comprehension of middle and high school students was examined using an experimental posttest-only control-group design. A convenience sample of 140 randomly assigned middle and high school English students at an independent school in eastern North Carolina participated. Half of the students used…

Wells, Casey L.

2012-01-01

367

My Student Body: Effects of an Internet-Based Prevention Program to Decrease Obesity among College Students  

Science.gov (United States)

Objective: To determine the impact of My Student Body (MSB)-Nutrition, an Internet-based obesity prevention program for college students. Participants: Three hundred and twenty ethnically diverse undergraduate students were randomly assigned to 1 of 3 conditions: MSB-Nutrition program, an on-campus weight management course, and a comparison group.…

LaChausse, Robert G.

2012-01-01

368

This Old Thing? Using Old Laboratory Equipment to Enhance Student Learning  

Science.gov (United States)

Using a surplus of older laboratory instruments, 48 students in a learning and behavior course completed an assignment designed to provide an introduction to the history and use of some instruments in psychology. Students worked in pairs, were assigned one instrument, and created labels in which they identified several keys characteristics of an…

Elcoro, Mirari; McCarley, Nancy

2015-01-01

369

Student Textbook Use in Introductory Physics  

Science.gov (United States)

This article, presented at the 2002 Physics Education Research Conference, reports on a two part study examining the extent to which students use a textbook in calculus-based introductory physics courses for scientists and engineers. The first aspect of the study is an investigation of how the placement of worked examples influences student use of the textbook. The second aspect studied is how course assignments can be used to encourage students to read the textbook.

Cooney, Patrick J.

370

The bicriterion multimodal assignment problem : introduction, analysis, and experimental results  

DEFF Research Database (Denmark)

We consider the bicriterion multimodal 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 are provided.

Pedersen, Christian Roed; Nielsen, Lars Relund

2008-01-01

371

The Bicriterion Multimodal Assignment Problem : Introduction, Analysis, and Experimental Results  

DEFF Research Database (Denmark)

We consider the bicriterion multimodal 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 are provided.

Pedersen, Christian Roed; Nielsen, Lars Relund

2008-01-01

372

Possible Modifications of the Multiple Criteria Assignment Method  

OpenAIRE

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...

Borovic?ka, Adam

2013-01-01

373

THE CHALLENGES OF WOMEN EXPATRIATES REGARDING INTERNATIONAL ASSIGNMENT  

OpenAIRE

With the ever-increasing amount of global business conducted in today’s world, the need for expatriate assignments on behalf of the workplace is increasing also. There is a deficit in the amount of female managers currently on international assignment. The primary objective of this thesis was to identify the challenges facing women, which would have prevented more women from embracing international assignments, and to more thoroughly explore stated challenges in order to pinpoint possib...

House, Allison

2013-01-01

374

Dynamical Frequency Assignment of WSN Based on Cloud Computing Technology  

OpenAIRE

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 ...

Yang, Jie; Jing, Jun-li

2012-01-01

375

Combinatorial Optimization Model for Railway Engine Assignment Problem  

OpenAIRE

This paper presents an experimental study for the Hungarian State Railway Company (M'AV). The engine assignment problem was solved at M'AV by their experts without using any explicit operations research tool. Furthermore, the operations research model was not known at the company. The goal of our project was to introduce and solve an operations research model for the engine assignment problem on real data sets. For the engine assignment problem we are using a combinatorial o...

Ille?s, Tibor; Makai, Ma?rton; Vaik, Zsuzsanna

2006-01-01

376

Student Writing in Philosophy: A Sketch of Five Techniques.  

Science.gov (United States)

Five techniques used for college writing assignments to heighten student thinking and involvement in class discussion are described: study questions; class notes; triple-entry notetaking; freewriting; and class response logs. These assignments balance personal/constructive writing and academic/critical writing to develop active learning. Examples…

Fishman, Stephen M.

1997-01-01

377

Consent in paediatrics: a complex teaching assignment.  

OpenAIRE

The topic of consent in paediatrics is made more difficult, and at the same time more interesting, by the complexity of the issues involved and the consequent diversity of viewpoints. In a teaching session for senior medical students on consent in paediatrics it proved necessary to reinstate previous learning from a range of disciplines. Philosophical medical ethics, developmental psychology, communication skills and the appropriate legal definitions all contributed to a proper understanding ...

Grant, V. J.

1991-01-01

378

48 CFR 1442.602 - Assignment and location.  

Science.gov (United States)

...CONTRACT MANAGEMENT CONTRACT ADMINISTRATION AND AUDIT SERVICES Corporate Administrative Contracting Officer 1442.602 Assignment...authority to approve the appointment of a Corporate Administrative Contracting...

2010-10-01

379

New Channel Assignment Method for Access Points in Wireless LANs  

OpenAIRE

Wireless LANs topology communicates using radio frequencies. The number of these frequencies is limited and not enough to assign a special frequency for each Access Point, this means that the communication topology should use a e-use mechanism, which allows the system to assign the same frequency that assigned previously for another access point. In this paper, we suggest a method to assign frequency channels to access points in a Wireless LANs system. The goal of this paper is to reach the a...

Mohammed Fawzi Al-Hunaity

2011-01-01

380

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

381

Measuring Conceptual Gains and Benefits of Student Problem Designs  

Science.gov (United States)

Writing assignments can be an effective way of getting students to practice higher-order learning skills in physics. One example of such an assignment is that of problem design. One version of the problem design assignment asks the student to evaluate the material from a chapter, after all instruction and other activities are complete. The student is to decide what concepts and ideas are most central, or critical in the chapter, and construct a problem that he or she feels best encompasses the major themes. Here, we use two concept surveys (FCI and EMCS) to measure conceptual gains for students completing the problem design assignment and present the preliminary results, comparing across several categories including gender, age, degree program, and class standing.

Mandell, Eric; Snyder, Rachel; Oswald, Wayne

2011-10-01

382

Introducing Research Methods to Gerontology Students in Community Colleges.  

Science.gov (United States)

Describes four assignments through which community college students learn about gerontology research: interviews of older adults, journal article critiques, design of a health promotion program for the elderly, and case study of community-based services for older adults. (SK)

Hare, Lyndall

2001-01-01

383

Predictors of academic performance in a cohort of pre-registration nursing students.  

Science.gov (United States)

The recruitment, selection and retention of nursing students have become crucial in securing the future workforce required by the NHS. Concerns regarding the academic performance of what is a changing student profile led to an audit being performed to explore the predictive relationship between entry qualifications, age, gender, attendance and academic performance in a cohort of pre-registration Diploma of Nursing students. Data was collated from a cohort of 154 students. Statistical analysis demonstrated that students with higher level entry qualifications performed consistently better than those with lower level qualifications. Mature students, over the age of 26, achieved better average marks in coursework and examinations that their younger peers. Year 1 performance predicted year 3 performance in both examinations and assignments. Non-attendance was shown to have an impact on academic performance with a correlation existing between high absenteeism and poor academic achievement. The findings highlight interesting issues for nurse educators relating to academic student support particularly in first year; recruitment and selection of the most suitable candidates; absenteeism monitoring and curriculum design. PMID:16914232

McCarey, Margaret; Barr, Tony; Rattray, Janice

2007-05-01

384

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

385

Symmetric Logic Synthesis with Phase Assignment  

CERN Document Server

Decomposition of any Boolean Function BF_n of n binary inputs into an optimal inverter coupled network of Symmetric Boolean functions SF_k (k \\leq n) is described. Each SF component is implemented by Threshold Logic Cells, forming a complete and compact T-Cell Library. Optimal phase assignment of input polarities maximizes local symmetries. The "rank spectrum" is a new BF_n description independent of input ordering, obtained by mapping its minterms onto an othogonal n \\times n grid of (transistor-) switched conductive paths, minimizing crossings in the silicon plane. Using this ortho-grid structure for the layout of SF_k cells, without mapping to T-cells, yields better area efficiency, exploiting the maximal logic path sharing in SF's. Results obtained with an optimization tool "Ortolog" based on these concepts, for very fast O(n^2) detecting and enhancing local symmetries of a BF_n, are reported. Relaxing symmetric- to planar- Boolean functions is sketched, to improve low- symmetry BF decomposition.

Benschop, N F

2001-01-01

386

A spectroscopic assignment technique for membrane proteins reconstituted in magnetically aligned bicelles  

International Nuclear Information System (INIS)

Oriented-sample NMR (OS-NMR) has emerged as a powerful tool for the structure determination of membrane proteins in their physiological environments. However, the traditional spectroscopic assignment method in OS NMR that uses the “shotgun” approach, though effective, is quite labor- and time-consuming as it is based on the preparation of multiple selectively labeled samples. Here we demonstrate that, by using a combination of the spin exchange under mismatched Hartmann-Hahn conditions and a recent sensitivity-enhancement REP-CP sequence, spectroscopic assignment of solid-state NMR spectra of Pf1 coat protein reconstituted in magnetically aligned bicelles can be significantly improved. This method yields a two-dimensional spin-exchanged version of the SAMPI4 spectrum correlating the 15N chemical shift and 15N–1H dipolar couplings, as well as spin-correlations between the (i, i ± 1) amide sites. Combining the spin-exchanged SAMPI4 spectrum with the original SAMPI4 experiment makes it possible to establish sequential assignments, and this technique is generally applicable to other uniaxially aligned membrane proteins. Inclusion of an 15N–15N correlation spectrum into the assignment process helps establish correlations between the peaks in crowded or ambiguous spectral regions of the spin-exchanged SAMPI4 experiment. Notably, unlike the traditional method, only a uniformly labeled protein sample is required beled protein sample is required for spectroscopic assignment with perhaps only a few selectively labeled “seed” spectra. Simulations for the magnetization transfer between the dilute spins under mismatched Hartmann Hahn conditions for various B1 fields have also been performed. The results adequately describe the optimal conditions for establishing the cross peaks, thus eliminating the need for lengthy experimental optimizations.

387

Approaches to assign security levels for radioactive substances and radiation sources  

International Nuclear Information System (INIS)

The article contains analyzed provisions on categorization of radioactive substances and radiation sources according to the extent of their potential danger. Above provisions are used in the IAEA documents and in Russian regulatory documents for differentiation of regulatory requirements to physical security. It is demonstrated that with the account of possible threats of violators, rules of physical protection of radiation sources and radioactive substances should be amended as regards the approaches to assign their categories and security levels

388

Sialidosis and galactosialidosis: chromosomal assignment of two genes associated with neuraminidase-deficiency disorders.  

OpenAIRE

The inherited human disorders sialidosis and galactosialidosis are the result of deficiencies of glycoprotein-specific alpha-neuraminidase (acylneuraminyl hydrolase, EC 3.2.1.18; sialidase) activity. Two genes were determined to be necessary for expression of neuraminidase by using human-mouse somatic cell hybrids segregating human chromosomes. A panel of mouse RAG-human hybrid cells demonstrated a single-gene requirement for human neuraminidase and allowed assignment of this gene to the (pte...

Mueller, O. T.; Henry, W. M.; Haley, L. L.; Byers, M. G.; Eddy, R. L.; Shows, T. B.

1986-01-01

389

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

Energy Technology Data Exchange (ETDEWEB)

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.

Chester, R.O.; Roberts, D.A.

1981-08-01

390

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

391

Comparing the performance and preference of students experiencing a Reading Aloud Accommodation to those who do not on a virtual science assessment  

Science.gov (United States)

Many United States secondary students perform poorly on standardized summative science assessments. Situated Assessments using Virtual Environments (SAVE) Science is an innovative assessment project that seeks to capture students' science knowledge and understanding by contextualizing problems in a game-based virtual environment called Scientopolis. Within Scientopolis, students use an "avatar" to interact with non-player characters (NPCs), artifacts, embedded clues and "sci-tools" in order to help solve the problems of the townspeople. In an attempt to increase students' success on assessments, SAVE science places students in an environment where they can use their inquiry skills to solve problems instead of reading long passages which attempt to contextualize questions but ultimately cause construct-irrelevant variance. However, within these assessments reading is still required to access the test questions and character interactions. This dissertation explores how students' in-world performances differ when exposed to a Reading Aloud Accommodation (RAA) treatment in comparison to a control group. Student perceptions of the treatment are also evaluated. While a RAA is typically available for students with learning disabilities or English language learners, within this study, all students were randomly assigned to either the treatment or control, regardless of any demographic factors or learning barriers. The theories of Universal design for learning and brain-based learning advocate for multiple ways for students to engage, comprehend, and illustrate their content knowledge. Further, through providing more ways for students to interact with content, all students should benefit, not just those with learning disabilities. Students in the experimental group listened to the NPCs speak the dialogue that provides them with the problem, clues, and assessment questions, instead of relying on reading skills to gather the information. Overall, students in the treatment group statistically outperformed those in the control. Student perceptions of using the reading aloud accommodation were generally positive. Ideas for future research are presented to investigate the accommodation further.

Shelton, Angela

392

Using Group Projects as a Strategy to Increase Cooperation among Low- and High-Achieving Students  

Science.gov (United States)

This study aimed to investigate the perceptions, interactions and behaviours of different-ability college students when they worked on different types of assessments. Two classes of 145 Vietnamese college students participated in this three-month study. The students were assigned to mixed-ability groups, each of which consisted of five students.…

Thanh Pham, Thi Hong

2013-01-01

393

The Effect of Grouping on the Behaviors of Eighth Grade Students.  

Science.gov (United States)

To investigate the effect of heterogeneous and homogeneous instructional groupings used in a middle school eighth grade on selected student behaviors, 120 students were assigned to a heterogeneous group and 120 students to a homogeneous group based on several factors. The heterogeneous group was comprised of all students enrolled in the school…

Hamm, William H.; Clawson, Kenneth

394

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

395

77 FR 8174 - EPAAR Prescription for Work Assignments  

Science.gov (United States)

...owned physical therapy practices is not relevant to this...the administration of work assignments under Cost...not physical therapy practices. As a result, after...1511.011- 74 for work assignments under clause...that have federalism implications.'' ``Policies...

2012-02-14

396

ICT Teachers' Assigned Roles and Expectations from Them  

Science.gov (United States)

The aim of this study was to provide a better understanding of ICT teachers' assigned position and to determine school administrators' and other teachers' perceptions towards ICT teachers and these teachers' positions, and to reveal the similar and discrepant aspects of their tertiary education and the roles (work and responsibilities) assigned to…

Topu, Fatma Burcu; Goktas, Yuksel

2012-01-01

397

The Eco-Sculpture Assignment: Using Art to Scaffold Metacognition  

Science.gov (United States)

The Eco-Sculpture Assignment demonstrates that art may be used as a conduit to scaffold metacognition in marketing courses. Theoretical underpinnings are drawn from the literature on pedagogy used in general, marketing, and art education contexts. The assignment is described in detail, followed by examples of learner response that illustrate…

Polegato, Rosemary

2014-01-01

398

Assignment of errors to calculated transition matrix elements  

International Nuclear Information System (INIS)

Errors are assigned to calculated transition matrix elements to account for uncertainties in the model Hamiltonian. The method is illustrated for the lowest five levels of 28Al for which an excellent correlation is found between the size of the assigned errors and the deviations between theory and experiment. (Auth.)

399

47 CFR 90.621 - Selection and assignment of frequencies.  

Science.gov (United States)

... false Selection and assignment of frequencies. 90.621 Section 90.621 Telecommunication...Regulations Governing Licensing and Use of Frequencies in the 806-824, 851-869, 896-901...Applications and the Selection and Assignment of Frequencies for Use in the 806-824 Mhz,...

2010-10-01

400

Pareto optimal solutions for multi-objective generalized assignment problem  

Scientific Electronic Library Online (English)

Full Text Available SciELO South Africa | Language: English Abstract in english 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 ava [...] ilable 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.

S., Prakash; M.K., Sharma; A., Singh.

401

New Channel Assignment Method for Access Points in Wireless LANs  

Directory of Open Access Journals (Sweden)

Full Text Available Wireless LANs topology communicates using radio frequencies. The number of these frequencies is limited and not enough to assign a special frequency for each Access Point, this means that the communication topology should use a e-use mechanism, which allows the system to assign the same frequency that assigned previously for another access point. In this paper, we suggest a method to assign frequency channels to access points in a Wireless LANs system. The goal of this paper is to reach the assignment that prevents interference between access points especially neighbor ones. We used Genetic Algorithm to work on this issue, it is considered as an Expert System and one of the main multi point search technique used in computing to solve optimization and search problems.

Mohammed Fawzi Al-Hunaity

2011-11-01

402

SOCMATICAS Student Workbook.  

Science.gov (United States)

The student workbook for Socmaticas includes 271 activities which require students to utilize data from soccer team rosters to complete this bilingual, multicultural, multidisciplinary, learning program ranging from elementary to secondary levels. Encompassing the subject areas of English/Spanish, mathematics, reading, social studies, history, and…

Frame, Laurence

403

Computer Anxiety, Academic Stress, and Academic Procrastination on College Students  

Directory of Open Access Journals (Sweden)

Full Text Available Academic procrastination is fairly and commonly found among college students. The lack of understanding in making the best use of computer technology may lead to anxiety in terms of operating computer hence cause postponement in completing course assignments related to computer operation. On the other hand, failure in achieving certain academic targets as expected by parents and/or the students themselves also makes students less focused and leads to tendency of postponing many completions of course assignments. The aim of this research is to investigate contribution of anxiety in operating computer and academic stress toward procrastination on students. As much as 65 students majoring in psychology became participants in this study. The results showed that anxiety in operating computer and academic stress play significant role in influencing academic procrastination among social sciences students. In terms of academic procrastination tendencies, anxiety in operating computer and academic stress, male students have higher percentage than female students.

Wahyu Rahardjo

2013-01-01

404

Geometrical position tolerance assignment in reverse engineering  

OpenAIRE

Abstract Geometric dimensioning and tolerancing constitutes the dominant approach for design and manufacture of mechanical parts that controls inevitable dimensional and geometric deviations within appropriate limits. Position tolerance is a critical geometric tolerance very frequently used in industry. Its designation requires size data in conjunction with appropriate datums and location coordinates for the position. In reverse engineering, where typically relevant engineering inf...

Kaisarlis, George John; Diplaris, Stefanos C.; Sfantsikopoulos, Michael M.

2008-01-01

405

IMPROVISED CHANNEL ASSIGNMENT TECHNIQUE FOR WIRELESS NETWORK USING GENETIC ALGORITHM  

Directory of Open Access Journals (Sweden)

Full Text Available Wireless technology development is basically because of transformation of what has been largely a medium for supporting voice telephony into a medium for supporting other services, such as the transmission of video, images, text, and data. Thus, the demand for new wireless capacity is growing at a very rapid pace. Although there are, of course, still a great many technical problems to be solved in wireline communications. The traditional resources that have been used to add capacity to wireless systems are radio bandwidth and transmitter power. Unfortunately, these two resources are among the most severely limited in the deployment of modern wireless networks: radio bandwidth because of the very tight situation with regard to useful radio spectrum, and transmitter power because mobile and other portable services require the use of battery power, which is limited. These two resources are simply not growing or improving at rates that can support anticipated demands for wireless capacity. For efficient utilization of the radio spectrum, a frequency reuse scheme that is consistent with the objectives of increasing capacity and minimizing interference is required. Allocation of channels to a cellular system is important from a performance point of view. The allocation of a set of channels to each base station during the planning process i.e. Frequency Planning Process is a NP-complete optimization problem with constraints for which different approached have been proposed. Examples: Various attempts via graph coloring algorithms, neural networks, set theory and other methods via simulated annealing algorithms have been proposed to solve this problem. However, this paper is to solve the channel assignment problem in wireless network using a Genetic Algorithm. The general purpose Simple Genetic Algorithm has been proved to cope up with varied channel demands in different wireless networks.

Gunjan Lavaniya

2014-10-01

406

The Daycare Assignment : A Dynamic Matching Problem  

DEFF Research Database (Denmark)

We study the problem of centralized allocation of children to public daycares, illustrated by the case of Denmark. Our framework applies more broadly to problems of dynamic matching in which there is entry and exit of agents over time; for example, it can be used to study the school choice problem once student mobility is taken into account. First, we show that the Gale-Shapley deferred acceptance mechanism adapted to the dynamic problem always yields a stable matching. However, we show that there does not exist any mechanism that is both stable and strategy-proof. We also show that the well-known Top Trading Cycles mechanism is neither Pareto efficient nor strategy-proof. Finally, a mechanism in which parents sequentially choose menus of schools is both strategy-proof and Pareto efficient.

Kennes, John; Monte, Daniel

2014-01-01

407

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

408

RDC derived protein backbone resonance assignment using fragment assembly  

International Nuclear Information System (INIS)

Experimental residual dipolar couplings (RDCs) in combination with structural models have the potential for accelerating the protein backbone resonance assignment process because RDCs can be measured accurately and interpreted quantitatively. However, this application has been limited due to the need for very high-resolution structural templates. Here, we introduce a new approach to resonance assignment based on optimal agreement between the experimental and calculated RDCs from a structural template that contains all assignable residues. To overcome the inherent computational complexity of such a global search, we have adopted an efficient two-stage search algorithm and included connectivity data from conventional assignment experiments. In the first stage, a list of strings of resonances (CA-links) is generated via exhaustive searches for short segments of sequentially connected residues in a protein (local templates), and then ranked by the agreement of the experimental 13C? chemical shifts and 15N-1H RDCs to the predicted values for each local template. In the second stage, the top CA-links for different local templates in stage I are combinatorially connected to produce CA-links for all assignable residues. The resulting CA-links are ranked for resonance assignment according to their measured RDCs and predicted values from a tertiary structure. Since the final RDC ranking of CA-links includes all assignable residues anlinks includes all assignable residues and the assignment is derived from a “global minimum”, our approach is far less reliant on the quality of experimental data and structural templates. The present approach is validated with the assignments of several proteins, including a 42 kDa maltose binding protein (MBP) using RDCs and structural templates of varying quality. Since backbone resonance assignment is an essential first step for most of biomolecular NMR applications and is often a bottleneck for large systems, we expect that this new approach will improve the efficiency of the assignment process for small and medium size proteins and will extend the size limits assignable by current methods for proteins with structural models.

409

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

410

Requirements Management for Continuous Software Product Development  

OpenAIRE

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

411

14 CFR 91.203 - Civil aircraft: Certifications required.  

Science.gov (United States)

...197(c) of this chapter, appropriate sections...the air carrier manual required by parts 121 and 135 of this chapter containing that...must have on it the registration number assigned...part 47 of this chapter....

2010-01-01

412

14 CFR 1260.75 - Summary of report requirements.  

Science.gov (United States)

...requirements. (a) Intermediate report responsibilities...provided by the NASA Financial Management Office of...that has been assigned financial cognizance of the grant...value totals for the reporting period. Negative reports...respectively. The reporting of a subject...

2010-01-01

413

77 FR 22834 - Reports, Forms, and Recordkeeping Requirements  

Science.gov (United States)

...The collection involves recruitment material, participants...Not assigned. Title: Recruitment and debriefing of human subjects...Enhancement Act of 2010 (PSEA) requires NHTSA to conduct a rulemaking...information consists of: (1) Recruitment material and...

2012-04-17

414

48 CFR 9904.415-40 - Fundamental requirement.  

Science.gov (United States)

... PROCUREMENT PRACTICES AND COST ACCOUNTING STANDARDS COST ACCOUNTING STANDARDS 9904.415-40 Fundamental requirement. (a) The cost of...compensation shall be assigned to the cost accounting period in which the...

2010-10-01

415

48 CFR 9904.408-40 - Fundamental requirement.  

Science.gov (United States)

... PROCUREMENT PRACTICES AND COST ACCOUNTING STANDARDS COST ACCOUNTING STANDARDS 9904.408-40 Fundamental requirement. (a) The costs...absence shall be assigned to the cost accounting period or periods in which the...

2010-10-01

416

48 CFR 9904.416-40 - Fundamental requirement.  

Science.gov (United States)

... PROCUREMENT PRACTICES AND COST ACCOUNTING STANDARDS COST ACCOUNTING STANDARDS 9904.416-40 Fundamental requirement. (a) The amount...insurance cost to be assigned to a cost accounting period is the projected...

2010-10-01

417

Tolerable Manipulability in Dynamic Assignment without Money  

OpenAIRE

We study a problem of dynamic allocation without money. Agents have arrivals and departures and strict preferences over items. Strategyproofness requires the use of an arrival-priority serial-dictatorship (APSD) mechanism, which is ex post Pareto efficient but has poor ex ante efficiency as measured through average rank efficiency. We introduce the scoring-rule (SR) mechanism, which biases in favor of allocating items that an agent values above the population consensus. The SR mechanism is no...

Zou, James Yang; Gujar, Sujit; Parkes, David C.

2010-01-01

418

Gene family assignment-free comparative genomics  

OpenAIRE

Abstract Background The comparison of relative gene orders between two genomes offers deep insights into functional correlations of genes and the evolutionary relationships between the corresponding organisms. Methods for gene order analyses often require prior knowledge of homologies between all genes of the genomic dataset. Since such information is hard to obtain, it is common to predict homologous groups based on sequence similarity. These hypothetical groups of homologous genes are calle...

Doerr Daniel; Thévenin Annelyse; Stoye Jens

2012-01-01

419

The relationship between different kinds of students' errors and the knowledge required to solve mathematics word problems / A relação 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 relação entre diferentes tipos de erros cometidos por estudantes e os conhecimentos necessários para resolver situações-problema em Álgebra, Aritmética e Geometria. Para a análise de erros seguimos as considerações 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 questões e entrevistas dirigidas. Os resultados da pesquisa revelaram que os erros na solução 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 à lacunas no conhecimento semântico, estrutural e intuitivo. Em relação aos problemas-palavra algébricos os erros devem-se a lacunas quanto às operações matemáticas. Em síntese, os resultados mostram que a maior deficiência 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.

2012-04-01

420

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 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. Noticeable differences between selected students related to

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

2010-03-01

421

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 “free-selection” peer assignment protocol by comparing them to the widely implemented “assigned-pair” 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

422

Introducing blended learning: An experience of uncertainty for students in the United Arab Emirates  

Directory of Open Access Journals (Sweden)

Full Text Available The cultural dimension of Uncertainty Avoidance is analysed in this study of an introduction to blended learning for international students. Content analysis was conducted on the survey narratives collected from three cohorts of management undergraduates in the United Arab Emirates. Interpretation of certainty with blended learning was found in: student skills with technology; student acknowledgement of course organisation; and student appreciation of online feedback. Uncertainty with the introduction of blended learning was found: when membership was assigned for group work, higher quality research methods were introduced; where course structure lacked detail, increased time was required for new and different online activities. These international students, from countries with a high score on Uncertainty Avoidance, exhibited that dimension when introduced to blended learning. The implications of these findings are discussed, and strategies suggested for introducing blended learning to international students. The limitations of the study are considered, and a direction for future research is suggested. This is the first study on undergraduates in the Middle East for the effects of a cultural dimension when introducing blended learning. The findings increase the body of knowledge that relates to learning technology in the international business classroom.

Linzi J. Kemp

2013-05-01

423

The annotated bibliography and citation behavior: enhancing student scholarship in an undergraduate biology course.  

Science.gov (United States)

Contemporary undergraduates in the biological sciences have unprecedented access to scientific information. Although many of these students may be savvy technologists, studies from the field of library and information science consistently show that undergraduates often struggle to locate, evaluate, and use high-quality, reputable sources of information. This study demonstrates the efficacy and pedagogical value of a collaborative teaching approach designed to enhance information literacy competencies among undergraduate biology majors who must write a formal scientific research paper. We rely on the triangulation of assessment data to determine the effectiveness of a substantial research paper project completed by students enrolled in an upper-level biology course. After enhancing library-based instruction, adding an annotated bibliography requirement, and using multiple assessment techniques, we show fundamental improvements in students' library research abilities. Ultimately, these improvements make it possible for students to more independently and effectively complete this challenging science-based writing assignment. We document critical information literacy advances in several key areas: student source-type use, annotated bibliography enhancement, plagiarism reduction, as well as student and faculty/librarian satisfaction. PMID:18056306

Flaspohler, Molly R; Rux, Erika M; Flaspohler, John A

2007-01-01

424

Quadratic partial eigenvalue assignment problem with time delay for active vibration control  

International Nuclear Information System (INIS)

Partial pole assignment in active vibration control refers to reassigning a small set of unwanted eigenvalues of the quadratic eigenvalue problem (QEP) associated with the second order system of a vibrating structure, by using feedback control force, to suitably chosen location without altering the remaining large number of eigenvalues and eigenvectors. There are several challenges of solving this quadratic partial eigenvalue assignment problem (QPEVAP) in a computational setting which the traditional pole-placement problems for first-order control systems do not have to deal with. In order to these challenges, there has been some work in recent years to solve QPEVAP in a computationally viable way. However, these works do not take into account of the practical phenomenon of the time-delay effect in the system. In this paper, a new 'direct and partial modal' approach of the quadratic partial eigenvalue assignment problem with time-delay is proposed. The approach works directly in the quadratic system without requiring transformation to a standard state-space system and requires the knowledge of only a small number of eigenvalues and eigenvectors that can be computed or measured in practice. Two illustrative examples are presented in the context of active vibration control with constant time-delay to illustrate the success of our proposed approach. Future work includes generalization of this approach to a more practical complex time-delay system and extension of this w time-delay system and extension of this work to the multi-input problem.

425

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…

Kontur, Frederick J.; Terry, Nathan B.

2014-01-01

426

Linear assignment maps for correlated system-environment states  

International Nuclear Information System (INIS)

Assignment maps are mathematical operators that describe initial system-environment states for open quantum systems. We re-examine the notion of assignments that account for correlations between the system and the environment and show that these maps can be made linear at the expense of giving up positivity or consistency of the map. We study the role of positivity and consistency of the map and show the effects of relaxing these. Finally, we establish a connection between the violation of the positivity of linear assignments and the no-broadcasting theorem.

427

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

428

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

429

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

430

Alimentação na escola como forma de atender às recomendações nutricionais de alunos dos Centros Integrados de Educação Pública (CIEPS School meal programs as a means to meet nutritional requirements for students in the Integrated Public School Centers (CIEPS  

Directory of Open Access Journals (Sweden)

Full Text Available Avalia-se o consumo alimentar de 244 crianças amostradas utilizando-se o registro dos alimentos por elas ingeridos, durante três dias não consecutivos da semana. Analisa-se a adequação de energia e nutrientes de acordo com o padrão definido para a população brasileira. Observa-se que a dieta dos escolares revela-se, em média, deficiente em energia: as refeições consumidas no âmbito dos CIEPs não alcançam 70% de adequação. Verifica-se que, inversamente, o conteúdo protéico das dietas apresenta-se muito acima do preconizado. Ressalta-se a satisfatória adequação das refeições consumidas no âmbito dos CIEPs quanto às vitaminas A, tiamina, riboflavina e niacina. Merece destaque a surpreendente adequação das dietas dos escolares em relação ao ácido ascórbico. Contribui para esse resultado a presença freqüente de frutas cítricas nas refeições da escola. Com relação ao ferro, constata-se que, com exceção dos escolares mais velhos, todos os demais exibem dietas que ultrapassam 90% de adequação. Quanto ao cálcio, nota-se que as dietas da maioria (exceto a dos alunos de maior idade alcançam 100% de adequação. Resultados do estudo mostram necessidade de corrigir falhas do conteúdo nutricional das refeições distribuídas na escola, pois as mesmas constituem parte fundamental do consumo alimentar dos alunos dos CIEPs.This study evaluates food intake of 244 children between ages 7-13 years using records of ingested foods on three non-consecutive days. The study analyzes energy and nutrient adequacy based on standards for the Brazilian population. Diet was generally found to be energy-deficient: meals consumed at the CIEPs met less than 70% of the requirement. On the other hand, protein was well above recommended levels. Worthy of note was the adequacy of meals in the CIEPs as to vitamin A, thiamin, riboflavin, and niacin, as well as the surprising adequacy of ascorbic acid, resulting from the frequent presence of citrus fruits in school meals. Except for older students, all schoolchildren studied had greater than 90% minimum iron intake. As for calcium, again except for older ones, consumption was 100% or more of minimum required levels. Results showed the need to correct flaws in the nutritional content of school meals, which are central to dietary intake for CIEP students.

Marina Vieira da Silva

1998-01-01

431

Records management policies and requirements  

International Nuclear Information System (INIS)

The Records Management Policies and Requirements (RMPR) 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. This report covers the control, indexing, microfilming, storage, retention, preservation, and protection of records generated by Office of Civilian Radioactive Waste Management (OCRWM) and of program-related documents generated and received from other entities, such as regulatory agencies, States, and Indian Tribes. This document is applicable to OCRWM Headquarters and OCRWM Project Offices

432

A Metamodeling Approach for Reasoning on Multiple Requirements Models  

OpenAIRE

The complex software development projects of today may require developers to use multiple requirements engineering approaches. Different teams may have to use different requirements modeling formalisms to express requirements related to their assigned parts of a given project. This situation poses difficulties in achieving interoperability and integration of requirements models for the purpose of reasoning on the overall system requirements. It is challenging to compose distributed models exp...

Go?knil, Arda; Kurtev, I.; Millo, J. V.; Gasevic, Dragan; Hatala, Marek; Nezhad, Hamid R. Motahari; Reichert, Manfred

2013-01-01

433

Sequence-specific 1H and 15N resonance assignments for human dihydrofolate reductase in solution  

International Nuclear Information System (INIS)

Dihydrofolate reductase is an intracellular target enzyme for folate antagonists, including the anticancer drug methotrexate. In order to design novel drugs with altered binding properties, a detailed description of protein-drug interactions in solution is desirable to understand the specificity of drug binding. As a first step in this process, heteronuclear three-dimensional NMR spectroscopy has been used to make sequential resonance assignments for more than 90% of the residues in human dihydrofolate reductase complexed with methotrexate. Uniform enrichment of the 21.5-kDa protein with 15N was required to obtain the resonance assignments via heteronuclear 3D NMR spectroscopy since homonuclear 2D spectra did not provide sufficient 1H resonance dispersion. Medium- and long-range NOE's have been used to characterize the secondary structure of the binary ligand-enzyme complex in solution

434

A gradual neural-network approach for frequency assignment in satellite communication systems.  

Science.gov (United States)

A novel neural-network approach called gradual neural network (GNN) is presented for a class of combinatorial optimization problems of requiring the constraint satisfaction and the goal function optimization simultaneously. The frequency assignment problem in the satellite communication system is efficiently solved by GNN as the typical problem of this class. The goal of this NP-complete problem is to minimize the cochannel interference between satellite communication systems by rearranging the frequency assignment so that they can accommodate the increasing demands. The GNN consists of NxM binary neurons for the N-carrier-M-segment system with the gradual expansion scheme of activated neurons. The binary neural network achieves the constrain satisfaction with the help of heuristic methods, whereas the gradual expansion scheme seeks the cost optimization. The capability of GNN is demonstrated through solving 15 instances in practical size systems, where GNN can find far better solutions than the existing algorithm. PMID:18255738

Funabiki, N; Nishikawa, S

1997-01-01

435

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

436

The effect of online discussion forums on student learning and student perception of learning in a science course at the community college level  

Science.gov (United States)

Institutions of higher education are feeling the pressure to offer a greater number of courses through alternative methods of instructional delivery including hybrid and online courses in an attempt to meet the needs of their students. Among institutions of higher education, community colleges have become a forerunner in online education, in many cases incorporating the development of online education into the institution's strategic plan. To some educators, hybrid course offerings provide the best of face-to-face education with electronic transfer of information. One of the greatest challenges which exists in the development of a hybrid course is the development of instructional methodologies which utilize cooperative and active learning. All learning management systems utilized by institutions of higher education have some form of online discussion forum as a key component. Online discussion forums have been suggested as an effective pedagogical tool which requires both cooperative interaction amongst students while simultaneously requiring individual active reflection of knowledge. However, current studies have focused on the effectiveness of online discussion forums at the undergraduate and graduate levels. The aim of the current study was to determine the effectiveness of online discussion forums in an upper level science course at the community college level in terms of student satisfaction and student achievement. Analysis of the data acquired from this study determined that the incorporation of online discussion forums as well as individual written reflections as a post-reflective assignment effectively improved student achievement and understanding of scientific topics and concepts related to Microbiology. In addition, it was determined that the students' attitudes towards the online discussion forum as a cooperative learning experience were somewhat positive. Thus, it can be concluded that the incorporation of online discussion forums into courses at the community college level can be considered as an alternative pedagogical tool which can effectively improve student learning.

Ryan, Rachel Syring

437

Recommender Systems for the Conference Paper Assignment Problem  

CERN Document Server

Conference paper assignment, i.e., the task of assigning paper submissions to reviewers, presents multi-faceted issues for recommender systems research. Besides the traditional goal of predicting `who likes what?', a conference management system must take into account aspects such as: reviewer capacity constraints, adequate numbers of reviews for papers, expertise modeling, conflicts of interest, and an overall distribution of assignments that balances reviewer preferences with conference objectives. Among these, issues of modeling preferences and tastes in reviewing have traditionally been studied separately from the optimization of paper-reviewer assignment. In this paper, we present an integrated study of both these aspects. First, due to the paucity of data per reviewer or per paper (relative to other recommender systems applications) we show how we can integrate multiple sources of information to learn paper-reviewer preference models. Second, our models are evaluated not just in terms of prediction accu...

Conry, Don; Ramakrishnan, Naren

2009-01-01

438

48 CFR 242.602 - Assignment and location.  

Science.gov (United States)

...ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE CONTRACT MANAGEMENT CONTRACT ADMINISTRATION AND AUDIT SERVICES Corporate Administrative Contracting Officer 242.602 Assignment and location. (c)(2) If the agencies cannot...

2010-10-01

439

46 CFR 2.85-1 - Assignment of load lines.  

Science.gov (United States)

...details governing assignment and marking of load lines. [CGD 95-028, 62 FR 51195, Sept. 30, 1997, as amended by USCG-1998-4442, 63 FR 52188, Sept. 30, 1998; USCG-2004-18884, 69 FR 58341, Sept. 30,...

2010-10-01

440

5 CFR 351.702 - Qualifications for assignment.  

Science.gov (United States)

...OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS...in § 351.703, an employee is qualified for assignment...compensable injury. Such an employee must be afforded appropriate...before it, that a preference eligible employee who has a...

2010-01-01

441

48 CFR 842.102 - Assignment of contract audit services.  

Science.gov (United States)

...Federal Acquisition Regulations System 5 2010-10-01 2010-10-01...false Assignment of contract audit services. 842.102 Section...Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS... CONTRACT ADMINISTRATION AND AUDIT SERVICES Contract Audit...

2010-10-01

442

48 CFR 42.102 - Assignment of contract audit services.  

Science.gov (United States)

...Federal Acquisition Regulations System 1 2010-10-01 2010-10-01...false Assignment of contract audit services. 42.102 Section...Federal Acquisition Regulations System FEDERAL ACQUISITION REGULATION... CONTRACT ADMINISTRATION AND AUDIT SERVICES Contract Audit...

2010-10-01

443

Membership Function Assignment for Elements of Single OWL Ontology  

OpenAIRE

This paper develops the idea of membership function assignment for OWL (Web Ontology Language) ontology elements in order to subsequently generate fuzzy rules from this ontology. The task of membership function assignment for OWL ontology elements had already been partially described, but this concerned the case, when several OWL ontologies of the same domain were available, and they were merged into a single ontology. The purpose of this paper is to present the way of membe...

Verhodubs, Olegs

2014-01-01

444

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

445

45 CFR 2551.71 - What requirements govern the assignment of Senior Companions?  

Science.gov (United States)

...relationships with each client served. (2) Support the achievement and maintenance of the highest level of independent living...the Senior Companion. (4) Are supported by appropriate orientation, training, and supervision. (b) Senior...

2010-10-01

446

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

447

The effect of online quizzes on student achievement in high school chemistry  

Science.gov (United States)

The idea of student engagement has come to the forefront of the United States educational system over the past decade. Student engagement requires learners to be actively involved in all stages of the learning process. This study focuses on the use of online quizzes in the chemistry classroom as a means to help students become more engaged in their learning outside of the classroom. Students were given three different types of online quizzes over the course of a chemistry chapter. Student scores on end of the chapter examinations was used to determine whether there was a significant difference in the amount of learning that occurred when a student took each of the three types of online quizzes. Students in a private parochial high school chemistry class completed online quizzes over the course of a semester. The quizzes were taken after completing assigned readings from the chemistry text. After each reading, a third of the students took online multiple-choice quizzes, a third took a paragraph quiz, and a third took no quiz. Scores received from end of chapter tests were evaluated to determine if the impact each of the quiz types had on the learning. All statistical analysis was done using SPSS using two-way split plot ANOVA with condition (paragraph, multiple-choice, nothing) as the within subject factor and group (A, B, C) as between subject factor. The data indicates that there was no significance within the condition F (1.877, 90.087) =.996, p>.05, or the interaction results. F (3.754, 90.087) =.509, p>.05. The data indicated that the effect of group was not significant either. F (2, 48) =.981, p>.05. Interviews undertaken to explain this outcome discovered that students did not become engaged with the content until the night before each test. When they did so, they used a teacher-provided study guide as their primary learning tool.

Deeter, Christopher L.

448

Requirements visualization  

OpenAIRE

Meeting user requirements of a software system has been a major challenge to software developers. Experience in a number of large projects reveals that a very large percentage of errors were made at the earlier stages of their development. Therefore, it is a well-accepted fact that it is crucial to express user requirements completely, correctly and unambiguously as possible. Many approaches have been applied to validate requirements, but most of them seem fit better to software develop...

Teyseyre, Alfredo Rau?l; Orosco, Ricardo Fabian; Campo, Marcelo

1999-01-01

449

Understanding Student Computational Thinking with Computational Modeling  

OpenAIRE

Recently, the National Research Council's framework for next generation science standards highlighted "computational thinking" as one of its "fundamental practices". 9th Grade students taking a physics course that employed the 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 st...

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

2012-01-01

450

Software requirements  

CERN Document Server

Without formal, verifiable software requirements-and an effective system for managing them-the programs that developers think they've agreed to build often will not be the same products their customers are expecting. In SOFTWARE REQUIREMENTS, Second Edition, requirements engineering authority Karl Wiegers amplifies the best practices presented in his original award-winning text?now a mainstay for anyone participating in the software development process. In this book, you'll discover effective techniques for managing the requirements engineering process all the way through the development cy

Wiegers, Karl E

2003-01-01

451

English Abilities for Academic Listening: How Confident Are Chinese Students?  

Science.gov (United States)

Research with ESL students studying at North American universities has indicated that Chinese students have difficulties in understanding academic lectures, taking notes, writing assignments, and giving presentations although they have obtained high TOEFL scores. The study investigates their English academic listening challenges as reported by…

Huang, Jinyan

2006-01-01

452

Students' Perceptions of English Learning through ESL/EFL Websites.  

Science.gov (United States)

Investigated the potential role of English-as-a-Second/Foreign-Language (ESL/EFL) websites to supplement in-class instruction. Evaluated a program in which students in an EFL class were introduced to five websites and instructed to use them for a homework assignment and self study. Students found learning through ESL/EFL websites was interesting…

Kung, Shiao-Chuan; Chuo, Tun-Whei

2002-01-01

453

Motivational Interviewing for Smoking Cessation among College Students  

Science.gov (United States)

Motivational interviewing has shown some success as an intervention for college student cigarette smokers. We tested the efficacy and process of a two session motivational-interviewing-based smoking intervention compared to an assessment/information session. College student participants assigned to the motivational interviewing condition did not…

Bolger, Kelly; Carter, Kimberly; Curtin, Lisa; Martz, Denise M.; Gagnon, Sandy G.; Michael, Kurt D.

2010-01-01

454

Apparel Marketing. [Student Manual] and Answer Book/Teacher's Guide.  

Science.gov (United States)

This document on apparel marketing contains both a student's manual and an answer book/teacher's guide. The student's manual contains the following 16 assignments: (1) introduction to fashion and fashion merchandising; (2) current fashion; (3) careers in fashion; (4) buying; (5) retailing; (6) merchandise basics; (7) merchandise--promotion and…

Gaskill, Melissa Lynn

455

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

456

Learner-Created Podcasts: Students' Stories with Music  

Science.gov (United States)

This article describes uses for podcasts in music education, focusing on learner-created podcasts as an opportunity for students to construct and represent knowledge. The author outlines a podcast assignment that enables secondary and postsecondary students to examine and more deeply understand the meaning music holds for them and the role it has…

Bolden, Benjamin

2013-01-01

457

Efficacy of Collaborative Strategic Reading with Middle School Students  

Science.gov (United States)

The authors conducted an experimental study to examine the effects of collaborative strategic reading and metacognitive strategic learning on the reading comprehension of students in seventh- and eighth-grade English/language arts classes in two sites (Texas, Colorado) and in three school districts. Students were randomly assigned to classes and…

Vaughn, Sharon; Klingner, Janette K.; Swanson, Elizabeth A.; Boardman, Alison G.; Roberts, Greg; Mohammed, Sarojani S.; Stillman-Spisak, Stephanie J.

2011-01-01

458

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

459

28 CFR 0.153 - Selection and assignment of employees for training.  

Science.gov (United States)

...and assignment of employees for training...Authorizations With Respect to Personnel and...and assignment of employees for training...C. 4109, with respect to the selection and assignment of employees for training...

2010-07-01

460

3 CFR - Assignment of Functions Under the National Defense Authorization Act for Fiscal Year 2010; the...  

Science.gov (United States)

...2010-01-01 false Assignment of Functions Under the National Defense Authorization...of November 30, 2009 Assignment of Functions Under the National Defense Authorization...hereby assign the authority to perform the functions conferred upon the President...

2010-01-01

461

24 CFR 206.107 - Mortgagee election of assignment or shared premium option.  

Science.gov (United States)

... Mortgagee election of assignment or shared premium option. 206.107 Section... Mortgagee election of assignment or shared premium option. (a) Election of option...elect either the assignment option or the shared premium option. (1) Under...

2010-04-01

462

40 CFR 22.21 - Assignment of Presiding Officer; scheduling the hearing.  

Science.gov (United States)

...2010-07-01 false Assignment of Presiding Officer; scheduling the hearing. 22.21 Section 22.21 Protection of...Procedures § 22.21 Assignment of Presiding Officer; scheduling the hearing. (a) Assignment of Presiding...

2010-07-01

463

47 CFR 90.173 - Policies governing the assignment of frequencies.  

Science.gov (United States)

...Policies governing the assignment of frequencies. 90.173 Section 90.173 Telecommunication...Policies Governing the Assignment of Frequencies § 90.173 Policies governing the assignment of frequencies. (a) Except as indicated in...

2010-10-01

464

Empirical Equation Based Chirality (n, m Assignment of Semiconducting Single Wall Carbon Nanotubes from Resonant Raman Scattering Data  

Directory of Open Access Journals (Sweden)

Full Text Available This work presents a technique for the chirality (n, m assignment of semiconducting single wall carbon nanotubes by solving a set of empirical equations of the tight binding model parameters. The empirical equations of the nearest neighbor hopping parameters, relating the term (2n, m with the first and second optical transition energies of the semiconducting single wall carbon nanotubes, are also proposed. They provide almost the same level of accuracy for lower and higher diameter nanotubes. An algorithm is presented to determine the chiral index (n, m of any unknown semiconducting tube by solving these empirical equations using values of radial breathing mode frequency and the first or second optical transition energy from resonant Raman spectroscopy. In this paper, the chirality of 55 semiconducting nanotubes is assigned using the first and second optical transition energies. Unlike the existing methods of chirality assignment, this technique does not require graphical comparison or pattern recognition between existing experimental and theoretical Kataura plot.

Md Shamsul Arefin

2012-12-01

465

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

466

Case Work for Technical Writing Students.  

Science.gov (United States)

Technical or professional writing classes may be enhanced through real-world writing assignments. Social-service agencies prove to be most agreeable and enthusiastic about working with students on various projects because they have limited--sometimes diminishing--financial support. In addition, most charities are accustomed to working with…

Hara, Ed

467

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

468

My Experience as Student Project Leader  

OpenAIRE

The author worked in an engineering college as a teacher. He completed one semester as a student leader of a class project in hand to investigate, write and produce. This paper describes the management process of organizing the class into groups of writers, highlighting the document into sections, assigning research topics and writing groups, and establishing deadlines for the project timetable.

SERENE WONG

2009-01-01

469

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

CERN Document Server

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 neighbor channels on-demand. To assign roles and channels, we extend the notion of the Weakly Connected Dominating Set, the structure already used in clustering. More precisely, we adapt the WCDS structure and introduce new constraints to define what we call a reversible WCDS (r-WCDS), which is particularly suitable for wireless mesh networks operating under Molecular MAC. We propose a divide-and-conquer scheme that partitions the network into clusters with one leader per cluster solving a MILP formulation to assign roles in its cluster. By ap...

Darties, Benoit; Duda, Andrzej

2009-01-01

470

NMR Analysis of RNA Bulged Structures: Tabu Search Application in NOE Signal Assignment  

International Nuclear Information System (INIS)

Bulges are the most frequently occurring RNA secondary structural elements of high functional importance. At present, they are known to participate in the process of RNA folding, RNA-RNA and RNA-protein interactions. It has been shown that bulges can induce destabilization in RNA duplexes and the extent of the destabilization depends on many factors such as the size of the bulge, the nature of the bulge bases, and the flanking residues. However, relatively very little is known about these structural elements. Only several studies have been performed to address the preferred conformations of bulged residues in DNA and RNA duplexes. The knowledge of spatial structure of RNA bulges in solution requires application of NMR spectroscopy. A considerable part of NMR analytical process of RNA fragment is based on automatic methods. However, manual assistance is still essential in resonance assignment. Thus, there has been a great need to introduce automatic procedures also at this level. We propose a tabu search algorithm being a tool for an automatic resonance assignment. The assignment is determined by NOE pathways, which can be constructed in aromatic/anomeric region of 2D NOESY spectrum generated during NMR experiment. Computational tests demonstrate performance of the tabu search applied to the experimental spectra of RNA bulged duplexes. (author)

471

15 CFR 280.323 - Transfer or assignment of the trademark registration or recorded insignia.  

Science.gov (United States)

... false Transfer or assignment of the trademark registration or recorded insignia. ...323 Transfer or assignment of the trademark registration or recorded insignia. (a) A trademark application or registration...

2010-01-01

472

47 CFR 80.379 - Maritime frequencies assignable to aircraft stations.  

Science.gov (United States)

... 2010-10-01 false Maritime frequencies assignable to aircraft stations. ...STATIONS IN THE MARITIME SERVICES Frequencies Aircraft Stations § 80.379 Maritime frequencies assignable to aircraft stations....

2010-10-01

473

Constrained Task Assignment and Scheduling On Networks of Arbitrary Topology  

Science.gov (United States)

This dissertation develops a framework to address centralized and distributed constrained task assignment and task scheduling problems. This framework is used to prove properties of these problems that can be exploited, develop effective solution algorithms, and to prove important properties such as correctness, completeness and optimality. The centralized task assignment and task scheduling problem treated here is expressed as a vehicle routing problem with the goal of optimizing mission time subject to mission constraints on task precedence and agent capability. The algorithm developed to solve this problem is able to coordinate vehicle (agent) timing for task completion. This class of problems is NP-hard and analytical guarantees on solution quality are often unavailable. This dissertation develops a technique for determining solution quality that can be used on a large class of problems and does not rely on traditional analytical guarantees. For distributed problems several agents must communicate to collectively solve a distributed task assignment and task scheduling problem. The distributed task assignment and task scheduling algorithms developed here allow for the optimization of constrained military missions in situations where the communication network may be incomplete and only locally known. Two problems are developed. The distributed task assignment problem incorporates communication constraints that must be satisfied; this is the Communication-Constrained Distributed Assignment Problem. A novel distributed assignment algorithm, the Stochastic Bidding Algorithm, solves this problem. The algorithm is correct, probabilistically complete, and has linear average-case time complexity. The distributed task scheduling problem addressed here is to minimize mission time subject to arbitrary predicate mission constraints; this is the Minimum-time Arbitrarily-constrained Distributed Scheduling Problem. The Optimal Distributed Non-sequential Backtracking Algorithm solves this problem. The algorithm is correct, complete, outputs time optimal schedules, and has low average-case time complexity. Separation of the task assignment and task scheduling problems is exploited here to ameliorate the effects of an incomplete communication network. The mission-modeling conditions that allow this and the benefits gained are discussed in detail. It is shown that the distributed task assignment and task scheduling algorithms developed here can operate concurrently and maintain their correctness, completeness, and optimality properties.

Jackson, Justin Patrick

474

Effective wavelength assignment algorithms in a wavelength-routed network  

Science.gov (United States)

This paper addresses the problem of wavelength assignment and wavelength routing in a wide-area optical network, where Wavelength Division Multiplexing (WDM) technology has emerged as the transmission and switching choice. One of the major design issues in this network is the assignment of the limited number of wavelengths among network stations so that higher aggregate capacity can be achieved. The problem of wavelength assignment and routing is proved to be NP-hard problem. The present literature on this topic is a large repertoire of heuristics that produce good solutions in a reasonable amount of time. These heuristic, however, have restricted applicability in a practical environment because they have a number of fundamental problems including high time complexity, lack of scalability with respect to optimal solutions. In this paper, we propose genetic based algorithm with an objective to simultaneously meet the goals of height performance and fast running time. In addition, we propose to apply the Greedy Random Adaptive Search Procedure (GRASP) to solve the wavelength assignment problem. We demonstrate that our proposed algorithms can achieve lower blocking probability while taking considerably less running time when compared to one of the best known heuristic wavelength assignment algorithms proposed by Zhang and Acampora, in which close to optimal solution can be obtained.

Qin, Yang; Siew, Chee K.; Li, Bo

2001-08-01

475

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

476

Virtual patient care: an interprofessional education approach for physician assistant, physical therapy and occupational therapy students.  

Science.gov (United States)

The purpose of this retrospective qualitative case report is to describe how a case-based, virtual patient interprofessional education (IPE) simulation activity was utilized to achieve physician assistant (PA), physical therapy (PT) and occupational therapy (OT) student IPE learning outcomes. Following completion of a virtual patient case, 30 PA, 46 PT and 24 OT students were required to develop a comprehensive, written treatment plan and respond to reflective questions. A qualitative analysis of the submitted written assignment was used to determine whether IPE learning objectives were met. Student responses revealed three themes that supported the learning objectives of the IPE experience: benefits of collaborative care, role clarification and relevance of the IPE experience for future practice. A case-based, IPE simulation activity for physician assistant and rehabilitation students using a computerized virtual patient software program effectively facilitated achievement of the IPE learning objectives, including development of greater student awareness of other professions and ways in which collaborative patient care can be provided. PMID:24593330

Shoemaker, Michael J; Platko, Christina M; Cleghorn, Susan M; Booth, Andrew

2014-07-01

477

A patient safety and transitions of care curriculum for third-year medical students.  

Science.gov (United States)

The elderly are the most vulnerable to adverse events during and after hospitalization. This study sought to evaluate the effectiveness of a curriculum on patient safety and transitions of care for medical students during an Internal Medicine-Geriatrics Clerkship on students' knowledge, skills, and attitudes. The curriculum included didactics on patient safety, health literacy, discharge planning and transitions of care, and postdischarge visits to patients. Analysis of pre- and postassessments showed afterwards students were significantly more comfortable assessing a patient's health literacy and confident performing a medication reconciliation, providing education regarding medications, and identifying barriers during transitions. More students were able to identify the most common source of adverse events after discharge (86% vs. 62% before), risk factors for low health literacy (28% vs. 14%), and ways to assess a patient's health literacy (14% vs. 2%). It was feasible to implement a postdischarge visit assignment in an urban tertiary care setting and only required on average of approximately an one and one half hours for students to complete. PMID:25288373

Bradley, Sara M; Chang, Dennis; Fallar, Robert; Karani, Reena

2015-01-01

478

The Impact of Working with Medical Students on Resident Productivity in the Emergency Department  

Directory of Open Access Journals (Sweden)

Full Text Available Introduction: Academic emergency departments (ED strive to balance educational needs of residents and medical students with service requirements that optimize patient care. No study to date has evaluated whether resident precepting of medical students affects residents’ clinical productivity. Understanding the interplay of these variables may allow for ED staffing that maximizes productivity. We sought to determine whether the precepting of medical students impacts resident productivity.Methods: This study was performed at a tertiary care ED with a 70,000 annual patient census. We performed a computer-based (Verinet Systems, Alachua, Fl retrospective review of patient encounters initiated by second- and third-year emergency medicine residents (PGY2 and PGY3 assigned to medical student precepting shifts and compared these shifts with those of the same residents when not working with students. Data collection over 12 months included shift length from the monthly schedule and number of patients and relative value units (RVUs from the Verinet System. Patients seen per hour (pt/hr and relative value unit per hour (RVUs/hr were calculated. We compared parameters using two-tailed T-tests. The hospital’s institutional review board approved this