Science.gov

Sample records for align high school

  1. Biodiesel and Integrated STEM: Vertical Alignment of High School Biology/Biochemistry and Chemistry

    ERIC Educational Resources Information Center

    Burrows, Andrea C.; Breiner, Jonathan M.; Keiner, Jennifer; Behm, Chris

    2014-01-01

    This article explores the vertical alignment of two high school classes, biology and chemistry, around the core concept of biodiesel fuel production. High school teachers and university faculty members investigated biodiesel as it relates to societal impact through a National Science Foundation Research Experience for Teachers. Using an action…

  2. Writing Expectations beyond High School: A Study of the Alignment of the New Jersey High School Proficiency Assessment in Writing and College-Level Expectations

    ERIC Educational Resources Information Center

    Finnegan, Robert J.

    2010-01-01

    Despite recent policy initiatives to ensure high school accountability through state-mandated testing, New Jersey high school graduates may not be prepared for the challenges of college-level writing because the state's high school assessment is not aligned with college-level expectations (Brown & Conley, 2007; Conley, 2003). An ever-growing…

  3. The Competent Classroom. Aligning High School Curriculum, Standards, and Assessment: A Creative Teaching Guide. The Series on School Reform.

    ERIC Educational Resources Information Center

    Zmuda, Allison; Tomaino, Mary

    This book describes two high school teachers' efforts to align curriculum, assessment, and performance standards, troubleshooting issues surrounding content standards, instructional objectives, and curricular aims. Eight chapters examine: (1) "What Does a Competent Classroom Look Like?"; (2) "What Drives a Course?" (e.g.,…

  4. K-12 Postsecondary Alignment and School Accountability: Investigating High School Responses to California's Early Assessment Program

    ERIC Educational Resources Information Center

    Jackson, Jacob; Kurlaender, Michal

    2016-01-01

    State K-12 assessments may soon include measures for college readiness, as California's already do. We seek to understand how California's Early Assessment Program (EAP, designed to assess high school juniors' college readiness in English and math) may have influenced overall school-level college readiness and state accountability outcomes. Using…

  5. Statistical Association: Alignment of Current U.S. High School Textbooks with the Common Core State Standards for Mathematics

    ERIC Educational Resources Information Center

    Tran, Dung

    2016-01-01

    This study examined the alignment of three selected U.S. high school textbooks series with the Common Core State Standards for Mathematics (CCSSM) regarding the treatment of statistical association. A framework grounded in the literature for inclusion and exclusion of reasoning about association topics was developed, and textbook entries were…

  6. College-Entry Level Biology Aligned to High School and Middle School Curriculum

    ERIC Educational Resources Information Center

    Saxon, David; Lennex, Lesia; Duvall, Dale

    2008-01-01

    Many students believe they are equipped for college only to discover that they need additional preparation in understanding how to apply content and/or improvement of study skills. How can public schools work together with colleges to better prepare students? Great scrutiny of the curriculum in conjunction with determination of college-entrance…

  7. Aligning High School and College Instruction: Preparing Students for Success in College Level Mathematics

    ERIC Educational Resources Information Center

    Alexander, Julie

    2013-01-01

    Across the United States, students are entering college with a need for improvement in basic mathematics and communication skills. In 2008, the Florida Legislature passed Senate Bill 1908 which changed the expectations for the senior year of high school for many students. Students who score within certain levels on the mandatory high school…

  8. Alignment between High School Biology Curriculum Standard and the Standardised Tests of Four Provinces in China

    ERIC Educational Resources Information Center

    Lu, Qun; Liu, Enshan

    2012-01-01

    With the development and implementation of new curriculum standards, the field tests of education reform in senior high schools began in 2004 in four pilot provinces in mainland China. After five years of the reform, it is necessary to know how and to what extent the curriculum standard guides test classroom instruction. The present study was…

  9. Aligning the Cultures of Teaching and Learning Science in Urban High Schools

    NASA Astrophysics Data System (ADS)

    Tobin, Kenneth

    2006-09-01

    This paper analyzes teaching and learning in urban science classrooms in which most of the students are African American and from low-income homes. Their teachers are also racial minorities and yet they struggle to teach successfully across cultural boundaries. The first set of case studies involves a male teacher who taught in a high-energy way that produced structures for students to get involved in the doing of science. His verbal fluency and expressive individualism, involving emphatic gestures, rhythmic use of his body, and voice intonation maintained student participation. A second case study examines successful interactions among the students, involving an argument over competing models for chemical valence. Whereas the students interacted successfully, the teacher was frequently out of synchrony in terms of amplitude, pitch, and non-verbal actions. The key implication is the necessity for teachers and students to learn how to interact successfully in ways that produce positive emotional energy, a sense of belonging to the class, and a commitment to shared responsibility for one another's participation. Aligning the cultures of teaching and learning offers a possibility that fluent interactions will occur, afford success, and facilitate the learning of science.

  10. Formative Assessment in High School Chemistry Teaching: Investigating the Alignment of Teachers' Goals with Their Items

    ERIC Educational Resources Information Center

    Sandlin, Benjamin; Harshman, Jordan; Yezierski, Ellen

    2015-01-01

    A 2011 report by the Department of Education states that understanding how teachers use results from formative assessments to guide their practice is necessary to improve instruction. Chemistry teachers have goals for items in their formative assessments, but the degree of alignment between what is assessed by these items and the teachers' goals…

  11. Alignment: A Local High School/College Model to Eliminate Remediation

    ERIC Educational Resources Information Center

    Rochford, Joseph A.

    2006-01-01

    A team of faculty from both Stark State College of Technology (SSCT) and the Canton City Schools (CCS) reviewed their respective curricula opposite the Ohio Academic Content Standards, assisted by a crosswalk indicating which of those standards were measured by COMPASS/ESL a widely used college placement test. This study found that the skills…

  12. Closing the Expectations Gap, 2008. An Annual 50-State Progress Report on the Alignment of High School Policies with the Demands of College and Careers

    ERIC Educational Resources Information Center

    Achieve, Inc., 2008

    2008-01-01

    This survey updates the efforts of all 50 states to align their high school standards, graduation requirements, assessments, and accountability systems with the demands of college and work. Thirty-two states have voluntarily joined the American Diploma Project (ADP) Network and are working to close the expectations gap that has left many young…

  13. A Sense of Balance: District Aligns Personalized Learning with School and System Goals

    ERIC Educational Resources Information Center

    Donsky, Debbie; Witherow, Kathy

    2015-01-01

    This article addresses the challenge of personalizing learning while also ensuring alignment with system and school improvement plans. Leaders of the York Region District School Board in Ontario knew that what took their high-performing school district from good to great would not take it from great to excellent. The district's early model of…

  14. Board and Senior Management Alignment on School Strategy

    ERIC Educational Resources Information Center

    Sarros, James C.; Sarros, Anne M.; Cooper, Brian K.; Santora, Joseph C.; Baker, Robin

    2016-01-01

    This study examines the degree to which senior executive members of a school's decision-making team (senior management team and board of directors) are aligned on fundamental principles of school strategy. Our study is based on a conceptual framework of strategic leadership as it applies in an Australian independent school context. We also examine…

  15. Unconventional High Density Vertically Aligned Conducting Polymer

    DTIC Science & Technology

    2014-08-21

    electrodes with unique and controlled nano-morphologies: highly aligned carbon nanotubes (A-CNT) and graphene. This program also developed the...highly aligned carbon nanotubes forests (A-CNTs) and graphene. As synthesized A- CNTs have low volume fraction of CNT (~ 1 %). Traditional method to... nanotubes (A-CNTs). In contract to the electric double layer capacitors (EDLC) which store charges on the surface of the electrodes, conducting

  16. Closing the Expectations Gap, 2006: An Annual 50-State Progress Report on the Alignment of High School Policies with the Demands of College and Work

    ERIC Educational Resources Information Center

    Achieve, Inc, 2006

    2006-01-01

    In February 2005, Achieve and the National Governors Association sponsored a National Education Summit on High Schools at which governors from 45 states, business leaders and education officials addressed the preparation gap that leaves many high school graduates unprepared for success in college and the workplace. The Summit helped focus the…

  17. High-harmonic spectroscopy of aligned molecules

    NASA Astrophysics Data System (ADS)

    Yun, Hyeok; Yun, Sang Jae; Lee, Gae Hwang; Nam, Chang Hee

    2017-01-01

    High harmonics emitted from aligned molecules driven by intense femtosecond laser pulses provide the opportunity to explore the structural information of molecules. The field-free molecular alignment technique is an expedient tool for investigating the structural characteristics of linear molecules. The underlying physics of field-free alignment, showing the characteristic revival structure specific to molecular species, is clearly explained from the quantum-phase analysis of molecular rotational states. The anisotropic nature of molecules is shown from the harmonic polarization measurement performed with spatial interferometry. The multi-orbital characteristics of molecules are investigated using high-harmonic spectroscopy, applied to molecules of N2 and CO2. In the latter case the two-dimensional high-harmonic spectroscopy, implemented using a two-color laser field, is applied to distinguish harmonics from different orbitals. Molecular high-harmonic spectroscopy will open a new route to investigate ultrafast dynamics of molecules.

  18. High Schools.

    ERIC Educational Resources Information Center

    Educational Facility Planner, 2002

    2002-01-01

    Describes the building designs of 28 high schools, including their educational contexts and design goals. Includes information on size, construction costs, architects, and contractors. Also includes floor plans and photographs. (EV)

  19. Aligning Professional Development with School Needs

    ERIC Educational Resources Information Center

    Reed, Peter

    2010-01-01

    Growth opportunities have benefited thousands of successful leaders, so school leaders short on time and funds might consider purposefully and intentionally incorporating some of the concepts into their practice through collegial coaching. Although it takes discipline and a willingness on the part of leaders to share in one another's growth for…

  20. Rethinking the High School Diploma

    ERIC Educational Resources Information Center

    Finn, Chester E., Jr.; Kahlenberg, Richard D.; Kress, Sandy

    2015-01-01

    As states move to implement the Common Core State Standards, key challenges remain. One is how to make sure a high school diploma acknowledges what students have achieved. Should states adopt a two tiered diploma, in which students who pass internationally aligned Common Core exams at a career- and college-ready level receive an…

  1. Optimizing femorotibial alignment in high tibial osteotomy

    PubMed Central

    Rudan, John; Harrison, Mark; Simurda, Michael A

    Objective To study factors that affect femorotibial (F-T) alignment after valgus closing wedge tibial osteotomy. Study design A review of standardized standing radiographs. Femorotibial alignment was measured 1 year postoperatively for over- and under-correction. Changes in F–T alignment and in tibial plateau angle were measured. Setting An urban hospital and orthopedic clinic. Patients Eighty-two patients with osteoarthritis and varus femorotibial alignment underwent valgus closing wedge tibial osteotomy. Patients having a diagnosis of inflammatory arthritis or a prior osteotomy about the knee were excluded. Results A 1° wedge removed from the tibia resulted in an average correction of F–T alignment of 1.2°. A knee that had increased valgus orientation of the distal femur had a greater degree of correction, averaging 1.46° in F–T alignment per degree of tibial wedge. This resulted in excessive postoperative valgus alignment for some patients who had increased valgus tilt of the distal femur. Optimal F–T alignment of 6° to 14° of valgus occurred when the postoperative tibial inclination was 4° to 8° of valgus. Conclusions There was a trend for knees with increased valgus orientation of the distal femur to have greater correction in F–T alignment after tibial osteotomy, likely because of a greater opening up of the medial joint space during stance. Surgeons need to account for this in their preoperative planning. PMID:10526522

  2. High Schools with Character.

    ERIC Educational Resources Information Center

    Hill, Paul T.; And Others

    This study compares zoned high schools, special public magnet schools, and Catholic high schools to identify features that motivate low-income students. Ten days of observations, interviews, and reviews of student records were conducted at eight New York City schools. Of the eight, three were Catholic high schools, two were zoned high schools, and…

  3. Liquid crystallinity driven highly aligned large graphene oxide composites

    SciTech Connect

    Lee, Kyung Eun; Oh, Jung Jae; Yun, Taeyeong; Kim, Sang Ouk

    2015-04-15

    Graphene is an emerging graphitic carbon materials, consisting of sp{sup 2} hybridized two dimensinal honeycomb structure. It has been widely studied to incorporate graphene with polymer to utilize unique property of graphene and reinforce electrical, mechanical and thermal property of polymer. In composite materials, orientation control of graphene significantly influences the property of composite. Until now, a few method has been developed for orientation control of graphene within polymer matrix. Here, we demonstrate facile fabrication of high aligned large graphene oxide (LGO) composites in polydimethylsiloxane (PDMS) matrix exploiting liquid crystallinity. Liquid crystalline aqueous dispersion of LGO is parallel oriented within flat confinement geometry. Freeze-drying of the aligned LGO dispersion and subsequent infiltration with PDMS produce highly aligned LGO/PDMS composites. Owing to the large shape anisotropy of LGO, liquid crystalline alignment occurred at low concentration of 2 mg/ml in aqueous dispersion, which leads to the 0.2 wt% LGO loaded composites. - Graphical abstract: Liquid crystalline LGO aqueous dispersions are spontaneous parallel aligned between geometric confinement for highly aligned LGO/polymer composite fabrication. - Highlights: • A simple fabrication method for highly aligned LGO/PDMS composites is proposed. • LGO aqueous dispersion shows nematic liquid crystalline phase at 0.8 mg/ml. • In nematic phase, LGO flakes are highly aligned by geometric confinement. • Infiltration of PDMS into freeze-dried LGO allows highly aligned LGO/PDMS composites.

  4. Automatic alignment technology in high power laser system

    NASA Astrophysics Data System (ADS)

    Zhang, Xin; Dai, Wan-jun; Wang, Yuan-cheng; Lian, Bo; Yang, Ying; Yuan, Qiang; Deng, Xue-wei; Zhao, Jun-pu; Zhou, Wei

    2015-02-01

    The high power solid laser system is becoming larger and higher energy that requires the beam automatic alignment faster and higher precision to ensure safety running of laser system and increase the shooting success rate. This paper take SGIII laser facility for instance, introduce the basic principle of automatic alignment of large laser system. The automatic alignment based on digital image processing technology which use the imaging of seven-classes spatial filter pinholes for feedback to working. Practical application indicates that automatic alignment system of cavity mirror in SGIII facility can finish the work in 210 seconds of four bundles and will not exceed 270 seconds of all six bundles. The alignment precision promoted to 2.5% aperture from 8% aperture. The automatic alignment makes it possible for fast and safety running of lager laser system.

  5. Corrected High-Frame Rate Anchored Ultrasound with Software Alignment

    ERIC Educational Resources Information Center

    Miller, Amanda L.; Finch, Kenneth B.

    2011-01-01

    Purpose: To improve lingual ultrasound imaging with the Corrected High Frame Rate Anchored Ultrasound with Software Alignment (CHAUSA; Miller, 2008) method. Method: A production study of the IsiXhosa alveolar click is presented. Articulatory-to-acoustic alignment is demonstrated using a Tri-Modal 3-ms pulse generator. Images from 2 simultaneous…

  6. Liquid crystallinity driven highly aligned large graphene oxide composites

    NASA Astrophysics Data System (ADS)

    Lee, Kyung Eun; Oh, Jung Jae; Yun, Taeyeong; Kim, Sang Ouk

    2015-04-01

    Graphene is an emerging graphitic carbon materials, consisting of sp2 hybridized two dimensinal honeycomb structure. It has been widely studied to incorporate graphene with polymer to utilize unique property of graphene and reinforce electrical, mechanical and thermal property of polymer. In composite materials, orientation control of graphene significantly influences the property of composite. Until now, a few method has been developed for orientation control of graphene within polymer matrix. Here, we demonstrate facile fabrication of high aligned large graphene oxide (LGO) composites in polydimethylsiloxane (PDMS) matrix exploiting liquid crystallinity. Liquid crystalline aqueous dispersion of LGO is parallel oriented within flat confinement geometry. Freeze-drying of the aligned LGO dispersion and subsequent infiltration with PDMS produce highly aligned LGO/PDMS composites. Owing to the large shape anisotropy of LGO, liquid crystalline alignment occurred at low concentration of 2 mg/ml in aqueous dispersion, which leads to the 0.2 wt% LGO loaded composites.

  7. Evaluating High School IT

    ERIC Educational Resources Information Center

    Thompson, Brett A.

    2004-01-01

    Since its inception in 1997, Cisco's curriculum has entered thousands of high schools across the U.S. and around the world for two reasons: (1) Cisco has a large portion of the computer networking market, and thus has the resources for and interest in developing high school academies; and (2) high school curriculum development teams recognize the…

  8. Early College High Schools

    ERIC Educational Resources Information Center

    Dessoff, Alan

    2011-01-01

    For at-risk students who stand little chance of going to college, or even finishing high school, a growing number of districts have found a solution: Give them an early start in college while they still are in high school. The early college high school (ECHS) movement that began with funding from the Bill and Melinda Gates Foundation 10 years ago…

  9. Effective Charter and Traditional School Characteristics: Aligning Findings for Informed Policy Making

    ERIC Educational Resources Information Center

    Maas, Tricia; Lake, Robin

    2015-01-01

    This literature review compares the current knowledge about the characteristics of effective charter schools to findings from the broader body of effective school research. We find that lists of effectiveness characteristics from the charter and traditional literatures are well aligned: good schools seem to look the same, regardless of governance…

  10. Resource Alignment: Providing Curriculum Support in the School Library Media Center.

    ERIC Educational Resources Information Center

    Lowe, Karen R.

    2001-01-01

    Discusses the alignment of resources, including textbooks, instructional materials, and school library media center resources, to the curriculum based on experiences in North Carolina. Explains resource alignment and considers assessing the library collection, discarding materials, identifying gaps in curriculum support, writing a collection…

  11. Eight Elements of High School Improvement: An Annotated Bibliography

    ERIC Educational Resources Information Center

    Jones, Wehmah

    2009-01-01

    This paper provides a table that contains a summary of resources available that support the National High School Center's "Eight Elements of High School Improvement: A Mapping Framework". This framework is based on eight common elements of systemic school reform and provides a structure for understanding, aligning, and prioritizing…

  12. Naperville High School

    ERIC Educational Resources Information Center

    Robert Wood Johnson Foundation, 2012

    2012-01-01

    In a political climate where most public schools have reduced or eliminated P.E. entirely in response to budget cuts and increased pressure to improve academic test scores, Naperville High School in Illinois stands out as an anomaly. The school's already robust daily P.E. program is specifically designed around the notion that physical activity…

  13. Japan's High Schools.

    ERIC Educational Resources Information Center

    Rohlen, Thomas P.

    The author, an anthropologist, spent 14 months (1974-75) in the industrial port city of Kobe (Japan) observing a cross section of urban high schools, including Japan's most elite private school and a night vocational school plagued by absenteeism and delinquency. He reports on the character of the institutions and of the experience via…

  14. High School and beyond

    ERIC Educational Resources Information Center

    Gewertz, Catherine

    2009-01-01

    Educators and policymakers increasingly recognize that in middle school, a combination of strong academic preparation, close monitoring, and good support is pivotal to success in high school. But few middle schools have structured themselves so explicitly to deliver the double wallop of academic and counseling attention needed to get their…

  15. Investigating How to Align Schools' Marketing Environments with Federal Standards for Competitive Foods

    ERIC Educational Resources Information Center

    Polacsek, Michele; O'Brien, Liam M.; Pratt, Elizabeth; Whatley-Blum, Janet; Adler, Sabrina

    2017-01-01

    Background: Limiting food and beverage marketing to children is a promising approach to influence children's nutrition behavior. School-based marketing influences nutrition behavior and studies have consistently found marketing for nonnutritious foods and beverages in schools. No studies have examined the resources necessary to align school…

  16. High School Oceanography.

    ERIC Educational Resources Information Center

    Falmouth Public Schools, MA.

    This book is a compilation of a series of papers designed to aid high school teachers in organizing a course in oceanography for high school students. It consists of twelve papers, with references, covering each of the following: (1) Introduction to Oceanography, (2) Geology of the Ocean, (3) The Continental Shelves, (4) Physical Properties of Sea…

  17. High School: Erasing Borders

    ERIC Educational Resources Information Center

    Wright, Dianne; Bogotch, Ira

    2006-01-01

    Over the last several years there have been numerous calls for reforming high school to college transitions. In 2000-2001, the American Youth Policy Forum (AYPF) and the National Commission on the High School Senior Year respectively called for a re-thinking of how students moved from secondary to postsecondary education. A widely-discussed…

  18. Reforming Underperforming High Schools

    ERIC Educational Resources Information Center

    MDRC, 2013

    2013-01-01

    Urban high schools are in trouble--high dropout rates, low student academic achievement, and graduates who are unprepared for college are just some of the disappointing indicators. However, recent research points to a select number of approaches to improving student outcomes and reforming underperforming schools--from particular ways of creating…

  19. Recovery High Schools

    PubMed Central

    Moberg, D. Paul; Finch, Andrew J.

    2009-01-01

    High schools specifically designed for students recovering from a substance use disorder (substance abuse or dependence) have been emerging as a continuing care resource since 1987. This study of 17 schools provides the first systematic description of recovery school programs and their students. The most common school model is that of a program or affiliated school, embedded organizationally and physically with another school or set of alternative school programs. Although embedded, there are serious efforts to maintain physical separation of recovery school students from other students, using scheduling and physical barriers. Affiliation with public school systems is the case for most recovery schools, and seems to be a major factor in assuring fiscal and organizational feasibility. The students in the recovery high schools studied were predominantly white (78%), with about one-half from two parent homes. Overall parent educational levels suggest a higher mean SES than in the general population. Most students (78%) had prior formal treatment for substance use disorders, often concomitantly with treatment for mental health concerns, and were often referred by treatment providers. Students came with a broad and complex range of mental health issues, traumatic experiences, drug use patterns, criminal justice involvement, and educational backgrounds. The complexity of these problems clearly limits the enrollment capacity of the schools. Retrospective pretest to post-test analysis suggests significant reduction in substance use as well as in mental health symptoms among the students. Students were very positive in their assessment of the therapeutic value of the schools, but less enthusiastic regarding the educational programs. The school programs appear to successfully function as continuing care to reinforce and sustain the therapeutic benefits students gained from their treatment experiences. PMID:19165348

  20. Alignment of Hands-On STEM Engagement Activities with Positive STEM Dispositions in Secondary School Students

    ERIC Educational Resources Information Center

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

    2015-01-01

    This study examines positive dispositions reported by middle school and high school students participating in programs that feature STEM-related activities. Middle school students participating in school-to-home hands-on energy monitoring activities are compared to middle school and high school students in a different project taking part in…

  1. Do School Bully Laws Align with Prevention Best Practices?

    ERIC Educational Resources Information Center

    Edmondson, Lynne; Zeman, Laura Dreuth

    2011-01-01

    This article examines state-level school laws that emerged over the last decade with regard to bully prevention. The purpose is to determine, among states that legally mandate public schools to address bullying, how extensively they have incorporated language representing the primary, secondary, and tertiary prevention levels. State bully laws…

  2. Aligning School Counseling, the Changing Workplace, and Career Development Assumptions.

    ERIC Educational Resources Information Center

    Feller, Rich W.

    2003-01-01

    Examines the role of school counselors and school counseling programs in preparing students for learning and work transitions. Offers advice for students to respond effectively to changing workplace needs and information on work skills that are required for graduates and job applicants. Addresses strategies in developing comprehensive career…

  3. High harmonic generation from impulsively aligned SO2

    NASA Astrophysics Data System (ADS)

    Devin, Julien; Wang, Song; Kaldun, Andreas; Bucksbaum, Phil

    2016-05-01

    Previous work in high harmonics generation (HHG) in aligned molecular gases has mainly focused on rotational dynamics in order to determine the contributions of different orbitals to the ionization step. In our experiment, we focus on the shorter timescale of vibrational dynamics. We generate high harmonics from impulsively aligned SO2 molecules in a gas jet and record the emitted attosecond pulse trains in a home-built high resolution vacuum ultra violet (VUV) spectrometer. Using the high temporal resolution of our setup, we are able to map out the effects of vibrational wavepackets with a sub-femtosecond resolution. The target molecule, SO2 gas, is impulsively aligned by a near-infrared laser pulse and has accessible vibrations on the timescale of the short laser pulse used. We present first experimental results for the response to this excitation in high-harmonics. We observe both fast oscillations in the time domain as well as shifts of the VUV photon energy outside of the pulse overlaps. Research supported by the U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES), Chemical Sciences, Geosciences, and Biosciences Division and by the National Science Foundation Graduate Research Fellowship.

  4. Recovery High Schools

    ERIC Educational Resources Information Center

    Vogel, Carl

    2009-01-01

    This article discusses recovery high schools which are designed specifically to serve students who have been through a professional substance abuse treatment program and are working to stay away from drugs and alcohol. The schools typically serve multiple districts and are funded from both the per-pupil state funds that follow a student and what…

  5. Saving America's High Schools

    ERIC Educational Resources Information Center

    Smerdon, Becky, Ed.; Borman, Kathryn M., Ed.

    2009-01-01

    Our educational system is in a continuous state of reform, yet outcomes are nowhere near what we can accept. Though the search for answers is perpetual, many efforts over the past decade have homed in on one feature of high schools--their size. If we simply reduce school size, the argument goes, students will gain a safer environment that can…

  6. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    1999-09-01

    School students into a class research project that employs simple materials but leads to an elegant solution. It is highly likely that her students' ALIGN=RIGHT> conceptual understanding of solution properties, density, heat capacity, phase change, diffusion, and scientific inquiry was greatly enhanced by the experience. Other accounts of research by high school students in class, small-group, and individual settings will be published in future issues. I hope that the various approaches described will stimulate new ideas for student-conducted research to facilitate learning. One frustration that high school teachers and students may experience is difficult access to instrumentation needed to carry out investigations. Calculator Based Laboratory (CBL) and other new technologies provide some relatively low-cost solutions to the problem, but the cost of specialized sensors can still be a barrier. In this issue a method for constructing an electrode for determining carbon dioxide concentration is described (p 1253). The article is not identified with Secondary School Chemistry mark (t) because it might not be of interest to a large number of high school teachers, but if the idea is appealing I encourage you to read the article. JCE has received several submissions from high school teachers describing devices constructed by their students, so I know there is some interest in low-cost build-it-yourself instrumentation. If you are among those who find this type of article interesting, please let me know. It will guide me in assigning the SSC icon to articles. Beginning Anew, Again For many readers, this issue will arrive only a few weeks or days before the beginning of the new school year. Others will already have begun the new school year. One of the joys of teaching lies in the cyclic nature of the school year. Ideas from summer workshops and conferences can be developed and implemented. Fresh faces in our classrooms

  7. Low cost, high performance, self-aligning miniature optical systems

    PubMed Central

    Kester, Robert T.; Christenson, Todd; Kortum, Rebecca Richards; Tkaczyk, Tomasz S.

    2009-01-01

    The most expensive aspects in producing high quality miniature optical systems are the component costs and long assembly process. A new approach for fabricating these systems that reduces both aspects through the implementation of self-aligning LIGA (German acronym for lithographie, galvanoformung, abformung, or x-ray lithography, electroplating, and molding) optomechanics with high volume plastic injection molded and off-the-shelf glass optics is presented. This zero alignment strategy has been incorporated into a miniature high numerical aperture (NA = 1.0W) microscope objective for a fiber confocal reflectance microscope. Tight alignment tolerances of less than 10 μm are maintained for all components that reside inside of a small 9 gauge diameter hypodermic tubing. A prototype system has been tested using the slanted edge modulation transfer function technique and demonstrated to have a Strehl ratio of 0.71. This universal technology is now being developed for smaller, needle-sized imaging systems and other portable point-of-care diagnostic instruments. PMID:19543344

  8. Turning High-Poverty Schools into High-Performing Schools

    ERIC Educational Resources Information Center

    Parrett, William H.; Budge, Kathleen

    2012-01-01

    If some schools can overcome the powerful and pervasive effects of poverty to become high performing, shouldn't any school be able to do the same? Shouldn't we be compelled to learn from those schools? Although schools alone will never systemically eliminate poverty, high-poverty, high-performing (HP/HP) schools take control of what they can to…

  9. Diamond Ranch High School.

    ERIC Educational Resources Information Center

    Betsky, Aaron

    2000-01-01

    Highlights award-winning Diamond Ranch High School (California) that was designed and built on a steep site around Los Angeles considered unsatisfactory for building due to its unstable soils. Building organization is discussed, and photos are provided. (GR)

  10. A Boltzmann model for rod alignment and schooling fish

    NASA Astrophysics Data System (ADS)

    Carlen, Eric; Carvalho, Maria C.; Degond, Pierre; Wennberg, Bernt

    2015-06-01

    We consider a Boltzmann model introduced by Bertin, Droz and Grégoire as a binary interaction model of the Vicsek alignment interaction. This model considers particles lying on the circle. Pairs of particles interact by trying to reach their mid-point (on the circle) up to some noise. We study the equilibria of this Boltzmann model and we rigorously show the existence of a pitchfork bifurcation when a parameter measuring the inverse of the noise intensity crosses a critical threshold. The analysis is carried over rigorously when there are only finitely many non-zero Fourier modes of the noise distribution. In this case, we can show that the critical exponent of the bifurcation is exactly 1/2. In the case of an infinite number of non-zero Fourier modes, a similar behavior can be formally obtained thanks to a method relying on integer partitions first proposed by Ben-Naïm and Krapivsky.

  11. Velocity alignment leads to high persistence in confined cells

    NASA Astrophysics Data System (ADS)

    Camley, Brian A.; Rappel, Wouter-Jan

    2014-06-01

    Many cell types display random motility on two-dimensional substrates but crawl persistently in a single direction when confined in a microchannel or on an adhesive micropattern. Does this imply that the motility mechanism of confined cells is fundamentally different from that of unconfined cells? We argue that both free- and confined-cell migration may be described by a generic model of cells as "velocity-aligning" active Brownian particles previously proposed to solve a completely separate problem in collective cell migration. Our model can be mapped to a diffusive escape over a barrier and analytically solved to determine the cell's orientation distribution and repolarization rate. In quasi-one-dimensional confinement, velocity-aligning cells maintain their direction for times that can be exponentially larger than their persistence time in the absence of confinement. Our results suggest an important connection between single- and collective-cell migration: high persistence in confined cells corresponds with fast alignment of velocity to cell-cell forces.

  12. LINCOLN HIGH SCHOOL, THE OPPORTUNITY SCHOOL.

    ERIC Educational Resources Information Center

    Lincoln High School, St. Louis, MO.

    THREE SEPARATE DOCUMENTS DESCRIBE A SPECIAL HIGH SCHOOL WHICH OFFERS MOTIVATION AND ACADEMIC OR VOCATIONAL PREPARATION TO STUDENTS WHO ARE UNABLE TO FUNCTION WITHIN A REGULAR HIGH SCHOOL PROGRAM. ACADEMIC FAILURE, ABSENTEEISM, OR BEHAVIOR PROBLEMS WERE THE USUAL REASONS FOR A STUDENT'S DISMISSAL FROM HIS REGULAR SCHOOL. IT IS ANTICIPATED THAT AS A…

  13. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    2001-07-01

    Supplementing a professional reading diet of chemical demonstrations, laboratory summaries, and classroom teaching strategies with accounts of new chemical discoveries and new understandings of chemical pedagogy is a healthy choice for the "living chemistry" teacher.

    Literature Cited

    1. Calvin, M. J. Chem. Educ..1987, 64, 335.
    2. Wink, D. J. J. Chem. Educ. 1992, 69, 108.
    3. Wink, D. J. J. Chem. Educ. 1992, 69, 264.
    4. Schobert, H. H. J. Chem. Educ. 1989, 66, 242.
    5. Schobert, H. H. J. Chem. Educ. 1989, 66, 290.

    align="center">Visit CLIC,an Online Resource for High School Teachers

  14. Aligning Student, Parent, and Teacher Incentives: Evidence from Houston Public Schools. NBER Working Paper No. 17752

    ERIC Educational Resources Information Center

    Fryer, Roland, Jr.

    2012-01-01

    This paper describes an experiment designed to investigate the impact of aligning student, parent, and teacher incentives on student achievement. On outcomes for which incentives were provided, there were large treatment effects. Students in treatment schools mastered more than one standard deviation more math objectives than control students, and…

  15. An evaluative study of the impact of the "Curriculum Alignment Toolbox" on middle school science achievement

    NASA Astrophysics Data System (ADS)

    Jones, Carol L.

    The number of computer-assisted education programs on the market is overwhelming science teachers all over the Michigan. Though the need is great, many teachers are reluctant to procure computer-assisted science education programs because they are unsure of the effectiveness of such programs. The Curriculum Alignment Toolbox (CAT) is a computer-based program, aligned to the Michigan Curriculum Framework's Benchmarks for Science Education and designed to supplement science instruction in Michigan middle schools. The purpose of this study was to evaluate the effectiveness of CAT in raising the standardized test scores of Michigan students. This study involved 419 students from one urban, one suburban and one rural middle school. Data on these students was collected from 4 sources: (1) the 8th grade Michigan Education Assessment Program (MEAP) test, (2) a 9 question, 5-point Likert-type scale student survey, (3) 4 open-response student survey questions and (4) classroom observations. Results of this study showed that the experimental group of 226 students who utilized the CAT program in addition to traditional instruction did significantly better on the Science MEAP test than the control group of 193 students who received only traditional instruction. The study also showed that the urban students from a "high needs" school seemed to benefit most from the program. Additionally, though both genders and all identified ethnic groups benefited from the program, males benefited more than females and whites, blacks and Asian/Pacific Islander students benefited more than Hispanic and multi-racial students. The CAT program's success helping raise the middle school MEAP scores may well be due to some of its components. CAT provided students with game-like experiences all based on the benchmarks required for science education and upon which the MEAP test is based. The program also provided visual and auditory stimulation as well as numerous references which students indicated

  16. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Emory Howell, J.

    1999-11-01

    many of our readers. align="left"> The High School/College Interface Luncheon was part of the very rich day-long High School Program at the New Orleans ACS Meeting. Shown here (from left) are Glenn Crosby, the luncheon speaker; Lillie Tucker-Akin, the High School Day program chair; and Fred Johnson, Assistant Superintendent of Shelby County (TN) schools and Immediate Past President of NSTA. The recipient of the James Bryant Conant Award in High School Chemistry Teaching is Frank G. Cardulla, who taught for many years at Niles North High School, Skokie, Illinois. His extensive record of service to fellow teachers includes editing the JCE "View from My Classroom" feature for several years and writing several articles, as well as his recent appointment to the JCE Board of Publication. The recipient of the George C. Pimentel Award in Chemical Education is Jerry A. Bell of the American Chemical Society in Washington, DC. An author of numerous articles appearing in JCE and a member of the JCE Board of Publication for several years, he currently serves as Board Chair. The 16th Biennial Conference on Chemical Education Readers who attended the 15th BCCE in Waterloo, Ontario, know that much of the programming at these conferences is of interest to high school teachers. Many work shops, papers, and demonstrations are presented by high school teachers. There are many other outstanding papers and posters, plenary speakers, and exciting demonstrations. The 16th BCCE will be held at the University of Michigan in Ann Arbor, July 30-August 3, 2000. Among the high school teachers already scheduled to present workshops at the 16th BCCE are George Hague, Lynn Hershey, and Jack Randall, and there will be many more before the program is completed. The High School Chemistry Program Chair is Tim Graham, Roosevelt High School (MI). The Organizing Committee is seeking the assistance of local sections of the American Chemical Society

  17. High School Graduation: An Alternative

    ERIC Educational Resources Information Center

    O'Leary, Brian P.

    2010-01-01

    In Manitoba's Seven Oaks School Division, all 3,000 high school students have a teacher advisor who spends an hour a week with them throughout their four years in high school, knows them as individuals, knows their families, and acts as an academic and life coach. Advisors help students complete their first high school course registration and they…

  18. Reshaping High School English.

    ERIC Educational Resources Information Center

    Pirie, Bruce

    This book takes up the question of what shape high school English studies should take in the coming years. It describes an English program that blends philosophical depth with classroom practicality. Drawing examples from commonly taught texts such as "Macbeth,""To Kill a Mockingbird," and "Lord of the Flies," the…

  19. Revisiting High School Visits

    ERIC Educational Resources Information Center

    Flagel, Andrew

    2012-01-01

    NACAC's anniversary is a great time to follow up on an article on high school visits, a topic of ongoing discussion in every admission and guidance office. The article highlights a variety of potential good outcomes that can be derived from collaborative interactions. Sadly, however, admission representatives are apt to be described by the…

  20. High-School Village.

    ERIC Educational Resources Information Center

    Cotton, Bob

    2002-01-01

    Portrays the Sandra Day O'Connor High School in Helotes, Texas, whose architectural design, materials, and building forms reflect a rural Texas setting and a community wish that the large campus not overpower the nearby town. Includes photographs and a site plan. (GR)

  1. Stony Pont High School.

    ERIC Educational Resources Information Center

    Design Cost Data, 2001

    2001-01-01

    Includes information about the building site, architectural design, master plan, materials, costs, scheduling, specifications, and square footage for the 86-acre Stony Point High School in Round Rock, Texas. Includes floor plan, general description, photos, and a list of manufacturers and suppliers used for the project. (GR)

  2. High School Projects.

    ERIC Educational Resources Information Center

    Learning By Design, 2002

    2002-01-01

    Describes the buildings of 30 high schools, including the educational context and design goals. Includes information on the architects and design team, a general building description, and general construction costs and specifications. Also provides a rough site plan and photographs. (EV)

  3. Nongrading the High School.

    ERIC Educational Resources Information Center

    Jenkins, John M.

    1998-01-01

    Reviews the history of nongraded high schools, from Preston Search's pioneering efforts in Pueblo, Colorado, to early 1900s Dalton and Winnetka Plans and midcentury continuous-progress plans. Competency, not age, already determines participation in band, orchestra, choir, and athletics. Curricula should be based on the structure, methodology, and…

  4. High School Press Pressures.

    ERIC Educational Resources Information Center

    Rogers, Luella P.

    History shows that the high school press suffers through cycles that reflect economic factors and cultural climates within communities, states, and the nation. The direction of that cycle in the 1960s and early 1970s was toward more open, free-flowing information by a vigorous student press, but those economic and cultural signs now are pointing…

  5. Carthage High School Baseball.

    ERIC Educational Resources Information Center

    Woodfin, Samantha, Ed.

    1995-01-01

    This is the third issue of the magazine to focus on baseball in Panola County (Texas). The issue salutes the Carthage High School baseball program during two periods of its history. The first period was the early 1940's under Coach E. B. Morrison, whose teams were State Finalists in 1941 and 1942. The second period covered is the era of Coach…

  6. [Senior High School Program.

    ERIC Educational Resources Information Center

    Wisconsin Univ. - Stout, Menomonie. Center for Vocational, Technical and Adult Education.

    This student directed document contains five activity packages, a proposed curriculum, and a set of transparency masters; all pertain to field objectives 1, 4, or 5 of the Wisconsin Guide to Local Curriculum Improvement in Industrial Education, K-12. Geared to the junior and senior high school level, the packages are entitled: Co-op Program…

  7. Aligned submicron grains in archeological potteries with high TRM anisotropy

    NASA Astrophysics Data System (ADS)

    Fukuma, K.; Ooga, M.; Isobe, H.

    2010-12-01

    Potteries have been often used to obtain archeointensity data because of the extremely high success rates in Thellier experiments. Since high anisotropy of thermoremanent magnetization (TRM) are commonly observed for potteries, anisotropy correction is routinely applied to make archeointensity data reliable. Such a TRM anisotropy is characterized by the foliated structure parallel to the surface and has been interpreted to reflect aligned magnetic minerals during molding. However, the high thermal stability and the higher degrees of TRM anisotropies than those of low-field susceptibility suggest that pottery TRM resides in fine-grained magnetic minerals formed during firing. Molding is not sufficient to explain highly anisotropic TRM of potteries. We measured TRM susceptibility tensors on potteries manufactured from 14th to 17th centuries in Japan. These potteries were fired up to about 1200°C resulting in partial vitrification. The ratios of maximum and minimum eigenvalues of the TRM susceptibility tensors are well distributed and reaches 1.8 for most anisotropic samples. The Curie temperature ranges from 500°C to 550°C implying titanium-poor titanomagnetite as TRM carriers, and the narrow unblocking temperature indicates that the low-titanium titanomagnetites are in or close to the single-domain size range. Submicron titanomagnetite grains were commonly observed on the polished sections under a FE-SEM. Some of the grains occur as inclusions in iron-bearing silicates such as pyroxene or hornblende, and other grains reside in glass matrix. In addition, vesiculated clay minerals contain highly elongated titanomagnetite grains. Such clay minerals seem stretched parallel to the pottery surface and inside titanomagnetite grains are also elongated along the surface. Relative abundance of titanomagnetite inclusions in silicates or glass against in clay minerals should control the degree of TRM anisotropy. Foliated TRM anisotropies originate from both alignment of clay

  8. High performance transistors via aligned polyfluorene-sorted carbon nanotubes

    SciTech Connect

    Brady, Gerald J.; Joo, Yongho; Singha Roy, Susmit; Gopalan, Padma; Arnold, Michael S.

    2014-02-24

    We evaluate the performance of exceptionally electronic-type sorted, semiconducting, aligned single-walled carbon nanotubes (s-SWCNTs) in field effect transistors (FETs). High on-conductance and high on/off conductance modulation are simultaneously achieved at channel lengths which are both shorter and longer than individual s-SWCNTs. The s-SWCNTs are isolated from heterogeneous mixtures using a polyfluorene-derivative as a selective agent and aligned on substrates via dose-controlled, floating evaporative self-assembly at densities of ∼50 s-SWCNTs μm{sup −1}. At a channel length of 9 μm the s-SWCNTs percolate to span the FET channel, and the on/off ratio and charge transport mobility are 2.2 × 10{sup 7} and 46 cm{sup 2} V{sup −1} s{sup −1}, respectively. At a channel length of 400 nm, a large fraction of the s-SWCNTs directly span the channel, and the on-conductance per width is 61 μS μm{sup −1} and the on/off ratio is 4 × 10{sup 5}. These results are considerably better than previous solution-processed FETs, which have suffered from poor on/off ratio due to spurious metallic nanotubes that bridge the channel. 4071 individual and small bundles of s-SWCNTs are tested in 400 nm channel length FETs, and all show semiconducting behavior, demonstrating the high fidelity of polyfluorenes as selective agents and the promise of assembling s-SWCNTs from solution to create high performance semiconductor electronic devices.

  9. Aligned silicon carbide nanowire crossed nets with high superhydrophobicity.

    PubMed

    Niu, Jun Jie; Wang, Jian Nong; Xu, Qian Feng

    2008-06-01

    Aligned silicon carbide nanowire crossed nets (a-SiCNWNs) were directly synthesized by using a vapor-solid reaction at 1100 degrees C. Zinc sulfide was used as catalyst to assist the growth of a-SiCNWNs with small size and crystal structure. After functionalization with perfluoroalkysilane, a-SiCNWNs showed excellent superhydrophobic property with a high water contact angle more than 156 +/- 2 degrees , compared to random nanowires (147 +/- 2 degrees ) and pure silicon wafers (101 +/- 2 degrees ). The topographic roughness and chemical modification with CF 2/CF 3 groups contributed the better superhydrophobicity. Furthermore, the as-grown SiCNWNs can be scraped off and coated on other substrates such as pure silicon wafers. The novel nanowire coating with good superhydrophobicity displays extensive applications in silicon-related fields such as solar cells, radar, etc.

  10. Fast, scalable generation of high-quality protein multiple sequence alignments using Clustal Omega

    PubMed Central

    Sievers, Fabian; Wilm, Andreas; Dineen, David; Gibson, Toby J; Karplus, Kevin; Li, Weizhong; Lopez, Rodrigo; McWilliam, Hamish; Remmert, Michael; Söding, Johannes; Thompson, Julie D; Higgins, Desmond G

    2011-01-01

    Multiple sequence alignments are fundamental to many sequence analysis methods. Most alignments are computed using the progressive alignment heuristic. These methods are starting to become a bottleneck in some analysis pipelines when faced with data sets of the size of many thousands of sequences. Some methods allow computation of larger data sets while sacrificing quality, and others produce high-quality alignments, but scale badly with the number of sequences. In this paper, we describe a new program called Clustal Omega, which can align virtually any number of protein sequences quickly and that delivers accurate alignments. The accuracy of the package on smaller test cases is similar to that of the high-quality aligners. On larger data sets, Clustal Omega outperforms other packages in terms of execution time and quality. Clustal Omega also has powerful features for adding sequences to and exploiting information in existing alignments, making use of the vast amount of precomputed information in public databases like Pfam. PMID:21988835

  11. Fast, scalable generation of high-quality protein multiple sequence alignments using Clustal Omega.

    PubMed

    Sievers, Fabian; Wilm, Andreas; Dineen, David; Gibson, Toby J; Karplus, Kevin; Li, Weizhong; Lopez, Rodrigo; McWilliam, Hamish; Remmert, Michael; Söding, Johannes; Thompson, Julie D; Higgins, Desmond G

    2011-10-11

    Multiple sequence alignments are fundamental to many sequence analysis methods. Most alignments are computed using the progressive alignment heuristic. These methods are starting to become a bottleneck in some analysis pipelines when faced with data sets of the size of many thousands of sequences. Some methods allow computation of larger data sets while sacrificing quality, and others produce high-quality alignments, but scale badly with the number of sequences. In this paper, we describe a new program called Clustal Omega, which can align virtually any number of protein sequences quickly and that delivers accurate alignments. The accuracy of the package on smaller test cases is similar to that of the high-quality aligners. On larger data sets, Clustal Omega outperforms other packages in terms of execution time and quality. Clustal Omega also has powerful features for adding sequences to and exploiting information in existing alignments, making use of the vast amount of precomputed information in public databases like Pfam.

  12. The Alignment of the Informal and Formal Organizational Supports for Reform: Implications for Improving Teaching in Schools

    ERIC Educational Resources Information Center

    Penuel, William R.; Riel, Margaret; Joshi, Aasha; Pearlman, Leslie; Kim, Chong Min; Frank, Kenneth A.

    2010-01-01

    Previous qualitative studies show that when the formal organization of a school and patterns of informal interaction are aligned, faculty and leaders in a school are better able to coordinate instructional change. This article combines social network analysis with interview data to analyze how well the formal and informal aspects of a school's…

  13. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    1999-06-01

    Secondary School Feature Article * JCE Classroom Activity #18: Photochemistry and Pinhole Photography: An Interdisciplinary Experiment, by Angeliki A. Rigos and Kevin Salemme, p 736A High School Program at Anaheim ACS Meeting align=right> Congratulations to Barbara Sitzman of Chatsworth High School (Los Angeles) and her committee for organizing an outstanding day of activities! With support from the Southern California Section of the American Chemical Society and the encouragement of Tom Wildeman, CHED Program Committee Chair, the program attracted a large number of Southern California teachers and some from much greater distances. A synopsis of some of the day's activities is included in the Chemical Education Program Meeting Report, p 747. Other workshop topics included gel chromatography, forensic chemistry, art preservation and authentication, well water purification, and toxins in waste water. Also, a workshop on fitting polymers into the chemistry course was conducted by the Polymer Ambassadors. I thank Mickey Sarquis, founding editor of the JCE Secondary School Chemistry Section, for joining me in conducting an information workshop. The pictures appearing on this page were taken at the High School/College Interface Luncheon, which featured an address by Paul Boyer. In addition to the opportunity to visit with colleagues, enjoy a meal together, and win door prizes, those in attendance enjoyed a lively hands-on workshop led by Michael Tinnesand, Department Head of K-12 Science, ACS Education Division. Don't you wish you could have attended the High School Program? Plan Now: High School Program in New Orleans Mark your calendar for Sunday, August 22, 1999. The Fall ACS National Meeting will be held in New Orleans and the High School Program is scheduled on Sunday so that teachers will be able to avoid conflicts with the opening of the school year. Teachers in the Mid-South region are especially encouraged

  14. Viewpoints: The High School Play.

    ERIC Educational Resources Information Center

    Harbison, Lawrence; And Others

    1981-01-01

    Presents opinions of professionals on the current state of the high school play. Participants include a playwright, play supplier, high school theater instructor, workshop leader, and play publisher. Discusses selection, production, and performance of plays. (JMF)

  15. Simple, generalizable route to highly aligned block copolymer thin films

    NASA Astrophysics Data System (ADS)

    Qiang, Zhe; Cavicchi, Kevin; Vogt, Bryan; University of Akron Team

    Macroscopic alignment of block copolymer domains in thin films is desired for many applications, such as cell responsive surfaces or optical polarizers. Alignment generally requires specialized tools that apply external fields, shear force gradient, or produce topological patterned substrates. This requirement limits the broad academic application of aligned BCPs. Here, we describe a simple modification of commonly utilized solvent vapor annealing (SVA) process for macroscopic alignment of BCPs. Adhering a flat, crosslinked elastomer pad to the BCP film leads to differential swelling between the elastomer pad and BCP to produce a shear force that aligns the ordered BCP domains. The role of elastomer properties, solvent quality, drying rate and degree of segregation of the block copolymer will be discussed to provide generalized rules for alignment with this technique. Cylindrical nanostructures formed in polystyrene-block-polydimethylsiloxane can be transformed into arrays of silica lines and increasing the thickness from a monolayer to bilayer can effectively halve the spacing of the lines. These results illustrate a generalized method for BCP alignment and a potential route for the generation of complex hierarchical assembled structures. A generalized method for block copolymer thin film alignment: solvent vapor annealing with shear.

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

    NASA Astrophysics Data System (ADS)

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

    2015-12-01

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

  17. Providing Curriculum Support in the School Library Media Center: Resource Alignment, or How To Eat an Elephant.

    ERIC Educational Resources Information Center

    Lowe, Karen

    2003-01-01

    Discusses the process of weeding, updating, and building a school library media collection that supports the state curriculum. Explains resource alignment, a process for using the shelf list as a tool to analyze and align media center resources to state curricula, and describes a five-year plan and its usefulness for additional funding. (LRW)

  18. School Uniforms in Urban Public High Schools

    ERIC Educational Resources Information Center

    Draa, Virginia Ann Bendel

    2005-01-01

    The purpose of this study was to determine whether or not the implementation of a mandatory uniform policy in urban public high schools improved school performance measures at the building level for rates of attendance, graduation, academic proficiency, and student conduct as measured by rates of suspensions and expulsions. Sixty-four secondary…

  19. Simple, generalizable route to highly aligned block copolymer thin films

    NASA Astrophysics Data System (ADS)

    Qiang, Zhe; Cavicchi, Kevin; Vogt, Bryan

    2015-03-01

    Macroscopic alignment of block copolymer domains in thin films is desired for many applications, such as cell responsive surfaces or optical polarizers. Alignment generally requires specialized tools that apply external fields, shear force gradient, or produce topological patterned substrates. This requirement limits the broad academic application of aligned BCPs. Here, we describe a simple modification of commonly utilized solvent vapor annealing (SVA) process for macroscopic alignment of BCPs. Adhering a flat, crosslinked elastomer pad to the BCP film leads to differential swelling between the elastomer pad and BCP to produce a shear force that aligns the ordered BCP domains. The role of elastomer properties, solvent quality, drying rate and degree of segregation of the block copolymer will be discussed to provide generalized rules for alignment with this technique. Cylindrical nanostructures formed in polystyrene-block-polydimethylsiloxane can be transformed into arrays of silica lines and increasing the thickness from a monolayer to bilayer can effectively halve the spacing of the lines. These results illustrate a generalized method for BCP alignment and a potential route for the generation of complex hierarchical assembled structures.

  20. Pairagon: a highly accurate, HMM-based cDNA-to-genome aligner

    PubMed Central

    Lu, David V.; Brown, Randall H.; Arumugam, Manimozhiyan; Brent, Michael R.

    2009-01-01

    Motivation: The most accurate way to determine the intron–exon structures in a genome is to align spliced cDNA sequences to the genome. Thus, cDNA-to-genome alignment programs are a key component of most annotation pipelines. The scoring system used to choose the best alignment is a primary determinant of alignment accuracy, while heuristics that prevent consideration of certain alignments are a primary determinant of runtime and memory usage. Both accuracy and speed are important considerations in choosing an alignment algorithm, but scoring systems have received much less attention than heuristics. Results: We present Pairagon, a pair hidden Markov model based cDNA-to-genome alignment program, as the most accurate aligner for sequences with high- and low-identity levels. We conducted a series of experiments testing alignment accuracy with varying sequence identity. We first created ‘perfect’ simulated cDNA sequences by splicing the sequences of exons in the reference genome sequences of fly and human. The complete reference genome sequences were then mutated to various degrees using a realistic mutation simulator and the perfect cDNAs were aligned to them using Pairagon and 12 other aligners. To validate these results with natural sequences, we performed cross-species alignment using orthologous transcripts from human, mouse and rat. We found that aligner accuracy is heavily dependent on sequence identity. For sequences with 100% identity, Pairagon achieved accuracy levels of >99.6%, with one quarter of the errors of any other aligner. Furthermore, for human/mouse alignments, which are only 85% identical, Pairagon achieved 87% accuracy, higher than any other aligner. Availability: Pairagon source and executables are freely available at http://mblab.wustl.edu/software/pairagon/ Contact: davidlu@wustl.edu; brent@cse.wustl.edu Supplementary information: Supplementary data are available at Bioinformatics online. PMID:19414532

  1. Bridging the Gap between College and High School Teachers of Writing in an Online Assessment Community

    ERIC Educational Resources Information Center

    Griffin, Merilee; Falberg, Amy; Krygier, Gigi

    2010-01-01

    The 2006 Spellings Commission report, "A Test of Leadership," stated that substandard high school preparation is compounded by poor alignment between high schools and colleges, which often creates an "expectations gap" between what colleges require and what high schools produce. This gap results in an annual expenditure of roughly one billion…

  2. Highly aligned arrays of high aspect ratio barium titanate nanowires via hydrothermal synthesis

    SciTech Connect

    Bowland, Christopher C.; Zhou, Zhi; Malakooti, Mohammad H.; Sodano, Henry A.

    2015-06-01

    We report on the development of a hydrothermal synthesis procedure that results in the growth of highly aligned arrays of high aspect ratio barium titanate nanowires. Using a multiple step, scalable hydrothermal reaction, a textured titanium dioxide film is deposited on titanium foil upon which highly aligned nanowires are grown via homoepitaxy and converted to barium titanate. Scanning electron microscope images clearly illustrate the effect the textured film has on the degree of orientation of the nanowires. The alignment of nanowires is quantified by calculating the Herman's Orientation Factor, which reveals a 58% improvement in orientation as compared to growth in the absence of the textured film. The ferroelectric properties of barium titanate combined with the development of this scalable growth procedure provide a powerful route towards increasing the efficiency and performance of nanowire-based devices in future real-world applications such as sensing and power harvesting.

  3. The High School Health Fair.

    ERIC Educational Resources Information Center

    Novick, Lloyd F.; And Others

    In response to unmet health needs of high school youth particularly those in ghetto schools, health fairs were organized at three inner-city high schools in New York. The purposes of all three fairs were similar: to disseminate health information, to perform selected health testing, to provide follow-up activities when necessary, and to engender…

  4. Parental Involvement in High Schools.

    ERIC Educational Resources Information Center

    Brian, Donna JG

    Although parental involvement is recommended at all levels of schooling, involvement of parents at the secondary level has not been well defined in the literature. This paper presents findings of a case study that examined three high schools with varying levels of parental involvement--the first, a large high school with a predominantly working…

  5. Arizona Academic Standards, High School

    ERIC Educational Resources Information Center

    Arizona Department of Education, 2009

    2009-01-01

    This publication contains Arizona public schools' updated academic standards for high school. The contents of this document contain: (1) The Arts Standard 2006--High School; (2) Comprehensive Health Education/Physical Activity Standards 1997--Proficiency and Distinction (Grades 9-12); (3) Foreign and Native Language Standards 1997--Proficiency and…

  6. Aligning Mental Models of District and School Leadership Teams for Reform Coherence

    ERIC Educational Resources Information Center

    Chrispeels, Janet H.; Burke, Peggy H.; Johnson, Peggy; Daly, Alan J.

    2008-01-01

    School and district effectiveness studies show that high levels of student achievement are possible when schools and the district act as coordinated units of change. There is also a growing recognition that principals cannot lead alone and that school leadership teams (SLTs) are essential to the improvement process. Limited studies have explored…

  7. Relay telescope for high power laser alignment system

    DOEpatents

    Dane, C. Brent; Hackel, Lloyd; Harris, Fritz B.

    2006-09-19

    A laser system includes an optical path having an intracavity relay telescope with a telescope focal point for imaging an output of the gain medium between an image location at or near the gain medium and an image location at or near an output coupler for the laser system. A kinematic mount is provided within a vacuum chamber, and adapted to secure beam baffles near the telescope focal point. An access port on the vacuum chamber is adapted for allowing insertion and removal of the beam baffles. A first baffle formed using an alignment pinhole aperture is used during alignment of the laser system. A second tapered baffle replaces the alignment aperture during operation and acts as a far-field baffle in which off angle beams strike the baffle a grazing angle of incidence, reducing fluence levels at the impact areas.

  8. High School Teen Mentoring Handbook

    ERIC Educational Resources Information Center

    Alberta Advanced Education and Technology, 2009

    2009-01-01

    Big Brothers Big Sisters Edmonton & Area, in partnership with Alberta Advanced Education and Technology, are providing the High School Teen Mentoring Program, a school-based mentoring program where mentor-mentee matches meet for one hour per week to engage in relationship-building activities at an elementary school. This initiative aims to…

  9. The Alignment Test System for AXAF-I's High Resolution Mirror Assembly

    NASA Technical Reports Server (NTRS)

    Waldman, Mark

    1995-01-01

    The AXAF-1 High Resolution Mirror Assembly (HRMA) consists of four nested mirror pairs of Wolter Type-1 grazing incidence optics. The HRMA assembly and alignment will take place in a vibration-isolated, cleanliness class 100, 18 meter high tower at an Eastman Kodak Company facility in Rochester, NY. Each mirror pair must be aligned such that its image is coma-free, and the four pairs must be aligned such that their images are coincident. In addition, both the HRMA optical axis and focal point must be precisely known with respect to physical references on the HRMA. The alignment of the HRMA mirrors is measured by the HRMA Alignment Test System (HATS), which is an integral part of the tower facility. The HATS is configured as a double-pass, autocollimating Hartmann test where each mirror aperture is scanned to determine the state of alignment. This paper will describe the design and operation of the HATS.

  10. High performance triboelectric nanogenerators with aligned carbon nanotubes.

    PubMed

    Wang, Huan; Shi, Mayue; Zhu, Kai; Su, Zongming; Cheng, Xiaoliang; Song, Yu; Chen, Xuexian; Liao, Zhiqiang; Zhang, Min; Zhang, Haixia

    2016-11-03

    As the essential element of a triboelectric nanogenerator (TENG), friction layers play key roles that determine the device performance, which can be enhanced by material selection and surface modification. In this work, we have embedded aligned carbon nanotubes (CNTs) on the polydimethylsiloxane (PDMS) surface as the effective dielectric layer to donate electrons. This layer not only increases the electron generation for the output, but also shows notable stretchability. The length and the properties of the aligned CNTs can be controlled precisely. Using the 40 μm CNT as an example, the fabricated CNT-PDMS TENG shows an output voltage of 150 V and a current density of 60 mA m(-2), which are 250% and 300% enhancement compared to the TENG using directly doped PDMS/multiwall carbon nanotubes, respectively. The maximum power density of this TENG reaches 4.62 W m(-2) at an external load of 30 MΩ. The TENG has demonstrated superior stability during cyclic measurement of over 12 000 cycles. Besides, the aligned CNT-PDMS film shows superhydrophobicity (154°) and good sheet resistance of 280 Ω sq(-1). This stretchable aligned CNT-PDMS film can be universally utilized as a positive triboelectric layer pairing with polymeric materials such as polyethylene terephthalate, polyimide, PDMS and polytetrafluoroethylene for TENGs. This work provides an effective method of structure design for flexible and stretchable nanogenerators.

  11. High School Completion Longitudinal Study

    ERIC Educational Resources Information Center

    Alberta Education, 2009

    2009-01-01

    While Alberta enjoys proven high, world-class results in student achievement, raising high school completion rates is one of the top priorities in improving the provincial education system. The 2011-12 targeted high school completion rate is 82% five years after entering Grade 10--a 2.5% increase from the current average rate of 79.5%. The purpose…

  12. High School Girls' Perceptions of Selected Fitness Activities

    ERIC Educational Resources Information Center

    Wilkinson, Carol; Bretzing, Robyn

    2011-01-01

    High school students, and particularly girls, are not very active (Centers for Disease Control and Prevention, 2006). To help girls develop the abilities to enjoy lifetime, healthy physical activity, physical educators need to provide curricula that will achieve this goal. In the process, they need to make sure they are aligned with the current…

  13. High School Biology [Sahuarita High School Career Curriculum Project].

    ERIC Educational Resources Information Center

    Esser, Robert

    This course entitled "High School Biology: Introduction" is one of a series of instructional guides prepared by teachers for the Sahuarita High School (Arizona) Career Curriculum Project. It consists of six units of study, and 26 behavioral objectives relating to these units are stated. Also included are a brief introduction and an annotated list…

  14. School Incorporation and High School Completion among Latino Youth

    ERIC Educational Resources Information Center

    Reed, Katherine

    2015-01-01

    Using data from the Education Longitudinal Study of 2002, a nationally representative sample of US high school students, I investigate how features of secondary schools influence the likelihood of Latino students completing high school. To do so, I introduce the concept of school incorporation, which includes school policies, school receptivity…

  15. Bullying in elementary school, high school, and college.

    PubMed

    Chapell, Mark S; Hasselman, Stefanie L; Kitchin, Theresa; Lomon, Safiya N; MacIver, Kenneth W; Sarullo, Patrick L

    2006-01-01

    This study investigated the continuity in being a bully, victim, or bully-victim from elementary school through college in 119 undergraduates. Of 25 who bullied in college, 18 (72%) had been bullied in high school and elementary school. Of 26 bullies in college, 14 (53.8%) had been bullies in high school and elementary school. Of 12 bully-victims in college, 5 (41.6%) had been bully-victims in high school and elementary school. There were significant positive correlations between being a bully in college, high school, and elementary school, and being bullied in college and high school, and high school and elementary school, and between being both a bully and victim in elementary school, a bully and victim in high school, and a bully and victim in college.

  16. Genome-wide synteny through highly sensitive sequence alignment: Satsuma

    PubMed Central

    Grabherr, Manfred G.; Russell, Pamela; Meyer, Miriah; Mauceli, Evan; Alföldi, Jessica; Di Palma, Federica; Lindblad-Toh, Kerstin

    2010-01-01

    Motivation: Comparative genomics heavily relies on alignments of large and often complex DNA sequences. From an engineering perspective, the problem here is to provide maximum sensitivity (to find all there is to find), specificity (to only find real homology) and speed (to accommodate the billions of base pairs of vertebrate genomes). Results: Satsuma addresses all three issues through novel strategies: (i) cross-correlation, implemented via fast Fourier transform; (ii) a match scoring scheme that eliminates almost all false hits; and (iii) an asynchronous ‘battleship’-like search that allows for aligning two entire fish genomes (470 and 217 Mb) in 120 CPU hours using 15 processors on a single machine. Availability: Satsuma is part of the Spines software package, implemented in C++ on Linux. The latest version of Spines can be freely downloaded under the LGPL license from http://www.broadinstitute.org/science/programs/genome-biology/spines/ Contact: grabherr@broadinstitute.org PMID:20208069

  17. Project Georgia High School/High Tech

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Georgia High School/High Tech has been developing a suggested curriculum for use in its programs. The purpose of this instructional material is to provide a basic curriculum format for teachers of High School/High Tech students. The curriculum is designed to implement QCC classroom instruction that encourages career development in technological fields through post-secondary education, paid summer internships, and exposure to experiences in high technology.

  18. Bringing the High Court to High School.

    ERIC Educational Resources Information Center

    Raskin, Jamin B.

    2002-01-01

    Describes the Marshall-Brennan Fellowship constitutional literacy project wherein 30 pairs of law students at the Washington College of Law teach a constitutional rights and responsibilities course to high school students in Washington, D.C., and Maryland public high schools. Students are also taken to hear oral arguments at the Supreme Court.…

  19. High-Flying High-Poverty Schools

    ERIC Educational Resources Information Center

    American Educator, 2013

    2013-01-01

    In discussing socioeconomic integration before audiences, the author is frequently asked: What about high-poverty schools that do work? Don't they suggest that economic segregation isn't much of a problem after all? High-poverty public schools that beat the odds paint a heartening story that often attracts considerable media attention. In 2000,…

  20. Fabrication and characterization of aligned macroporous monolith for high-performance protein chromatography.

    PubMed

    Du, Kaifeng; Zhang, Qi; Dan, Shunmin; Yang, Min; Zhang, Yongkui; Chai, Dezhi

    2016-04-22

    In the present study, a freeze casting method combined with particle accumulation was applied to fabricate the aligned macroporous monolith for high-performance protein chromatography. For the preparation, the reactive colloids were first prepared by using glycidyl methacrylate and ethylene glycol dimethacrylate as monomers. Subsequently, these colloids accumulated regularly and polymerized into the aligned macroporous monolith. The aligned porous structure of the monolith was characterized by SEM, mercury intrusion, and flow hydrodynamics. The results revealed that the generated monolith was possessed of aligned macropores in size of about 10 μm and high column permeability. Finally, after being modified with sulfonated groups, the monolith was evaluated for its chromatographic performance. It demonstrated that the aligned macropores endowed the monolith with excellent adsorption capacity and high column efficiency.

  1. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    1999-10-01

    Writing Across the Curriculum The notion that student learning is enhanced through writing is widely accepted at all educational levels if the product is fairly assessed and the learner is provided with feedback. Finding the time to critically evaluate student papers is difficult at best and competes with time needed to prepare laboratory investigations. A few weeks ago a teacher who has extensive extracurricular responsibilities that include extensive interaction with parents and community members shared with me his frustration in not being able to grade written reports. This teacher is the head football coach at his school, but many readers experience the same difficulties due to a variety of duties. There are no easy or completely satisfying answers to this problem, but this issue contains an account of a successful approach (Writing in Chemistry: An Effective Learning Tool, pp 1399-1403). Although they are based on experience in college courses, several ideas described in the article could be applied in high school chemistry courses. In another article, the author of Precise Writing for a Precise Science (pp 1407-1408) identifies 20 examples of familiar, but incorrect, grammatical constructions and explains how to phrase each one correctly. Chemical Education Research: Improving Chemistry Learning The results from research on how students learn have greatly increased our understanding of cognition in recent years. However, the results are often published in the science education research literature and are not readily accessible to the classroom teacher. Additionally, the research reports are couched in specialized terminology. This issue contains a Viewpoints article (pp 1353-1361) that bridges the gap between research results and classroom application. It was written by two veteran chemical educators, Dudley Herron and Susan Nurrenbern. The shift from behaviorism to constructivism as the dominant theory of learning is described briefly to provide a context

  2. Alignment and Characterization of High Uniformity Imaging Spectrometers

    NASA Technical Reports Server (NTRS)

    Bender, Holly A.; Mouroulis, Pantazis; Eastwood, Michael L.; Green, Robert O.; Geier, Sven; Hochberg, Eric B.

    2011-01-01

    Imaging spectrometers require precise adjustments, in some cases at the sub-micrometer level, in order to achieve auniform response over both the spectral and spatial dimensions. We describe a set of measurement techniques and theircorresponding alignment adjustments to achieve the 95% or higher uniformity specifications required for Earthobservingimaging spectrometers. The methods are illustrated with measurements from the Next Generation Imaging Spectrometer system that has been built at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.

  3. Theory of electrical conductivity and dielectric permittivity of highly aligned graphene-based nanocomposites.

    PubMed

    Xia, Xiaodong; Hao, Jia; Wang, Yang; Zhong, Zheng; Weng, George J

    2017-03-24

    Highly aligned graphene-based nanocomposites are of great interest due to their excellent electrical properties along the aligned direction. Graphene fillers in these composites are not necessarily perfectly aligned, but their orientations are highly confined to a certain angle, with 90-degree giving rise to the randomly oriented state and 0-degree to the perfectly aligned one. Recent experiments have shown that electrical conductivity and dielectric permittivity of highly aligned graphene-polymer nanocomposites are strongly dependent on this distribution angle, but at present no theory seems to exist to address this issue. In this work we present a new effective-medium theory that is derived from the underlying physical process including the effects of graphene orientation, filler loading, aspect ratio, percolation threshold, interfacial tunneling, and Maxwell-Wagner-Sillars polarization, to determine these two properties. The theory is formulated in the context of preferred orientational average. We highlight this new theory with an application to rGO/epoxy nanocomposites, and demonstrate that the calculated in-plane and out-of-plane conductivity and permittivity are in agreement with the experimental data as the range of graphene orientations changes from the randomly oriented to the highly aligned state. We also show that the percolation thresholds of highly aligned graphene nanocomposites are in general different along the planar and the normal directions, but they converge into a single one when the statistical distribution of graphene fillers is spherically symmetric.

  4. High School Teachers and High School Reform: A Phenomenological Study of the Influence of Teachers' High School Experience regarding Their High School Teaching Experience

    ERIC Educational Resources Information Center

    Augustine, Dwaine Keith

    2009-01-01

    This study explored the effects of the lived high school experiences of high school teachers and how those experiences may inform researchers regarding high school reform. One aim was to investigate how teachers' experiences during high school influenced their thoughts or behaviors toward high school as a rite of passage, epiphany, or critical…

  5. How the Whole School, Whole Community, Whole Child Model Works: Creating Greater Alignment, Integration, and Collaboration Between Health and Education

    PubMed Central

    Chiang, Rachelle Johnsson; Meagher, Whitney; Slade, Sean

    2015-01-01

    BACKGROUND The Whole School, Whole Community, Whole Child (WSCC) model calls for greater collaboration across the community, school, and health sectors to meet the needs and support the full potential of each child. This article reports on how 3 states and 2 local school districts have implemented aspects of the WSCC model through collaboration, leadership and policy creation, alignment, and implementation. METHODS We searched state health and education department websites, local school district websites, state legislative databases, and sources of peer-reviewed and gray literature to identify materials demonstrating adoption and implementation of coordinated school health, the WSCC model, and associated policies and practices in identified states and districts. We conducted informal interviews in each state and district to reinforce the document review. RESULTS States and local school districts have been able to strategically increase collaboration, integration, and alignment of health and education through the adoption and implementation of policy and practice supporting the WSCC model. Successful utilization of the WSCC model has led to substantial positive changes in school health environments, policies, and practices. CONCLUSIONS Collaboration among health and education sectors to integrate and align services may lead to improved efficiencies and better health and education outcomes for students. PMID:26440819

  6. Creation of highly aligned electrospun poly-L-lactic acid fibers for nerve regeneration applications

    NASA Astrophysics Data System (ADS)

    Wang, Han Bing; Mullins, Michael E.; Cregg, Jared M.; Hurtado, Andres; Oudega, Martin; Trombley, Matthew T.; Gilbert, Ryan J.

    2009-02-01

    Aligned, electrospun polymer fibers have shown considerable promise in directing regenerating axons in vitro and in vivo. However, in several studies, final electrospinning parameters are presented for producing aligned fiber scaffolds, and alignment where minimal fiber crossing occurs is not achieved. Highly aligned species are necessary for neural tissue engineering applications to ensure that axonal extension occurs through a regenerating environment efficiently. Axonal outgrowth on fibers that deviate from the natural axis of growth may delay axonal extension from one end of a scaffold to the other. Therefore, producing aligned fiber scaffolds with little fiber crossing is essential. In this study, the contributions of four electrospinning parameters (collection disk rotation speed, needle size, needle tip shape and syringe pump flow rate) were investigated thoroughly with the goal of finding parameters to obtain highly aligned electrospun fibers made from poly-L-lactic acid (PLLA). Using an 8 wt% PLLA solution in chloroform, a collection disk rotation speed of 1000 revolutions per minute (rpm), a 22 gauge, sharp-tip needle and a syringe pump rate of 2 ml h-1 produced highly aligned fiber (1.2-1.6 µm in diameter) scaffolds verified using a fast Fourier transform and a fiber alignment quantification technique. Additionally, the application of an insulating sheath around the needle tip improved the rate of fiber deposition (electrospinning efficiency). Optimized scaffolds were then evaluated in vitro using embryonic stage nine (E9) chick dorsal root ganglia (DRGs) and rat Schwann cells (SCs). To demonstrate the importance of creating highly aligned scaffolds to direct neurite outgrowth, scaffolds were created that contained crossing fibers. Neurites on these scaffolds were directed down the axis of the aligned fibers, but neurites also grew along the crossed fibers. At times, these crossed fibers even stopped further axonal extension. Highly aligned PLLA fibers

  7. Bullying in Elementary School, High School, and College

    ERIC Educational Resources Information Center

    Chapell, Mark S.; Hasselman, Stefanie L.; Kitchin, Theresa; Lomon, Safiya N.; MacIver, Kenneth W.; Sarullo, Patrick L.

    2006-01-01

    This study investigated the continuity in being a bully, victim, or bully-victim from elementary school through college in 119 undergraduates. Of 25 who bullied in college, 18 (72%) had been bullied in high school and elementary school. Of 26 bullies in college, 14 (53.8%) had been bullies in high school and elementary school. Of 12 bully-victims…

  8. Supporting High School Graduation Aspirations among Latino Middle School Students

    ERIC Educational Resources Information Center

    Lys, Diana B.

    2009-01-01

    The purpose of this study was to investigate the perceptions Latino eighth grade students have of school and schooling factors as they transition to high school and the factors that may influence their self-perceived likelihood of graduating from high school. Middle schools are poised to help Latino students prepare themselves for a smoother…

  9. Authoritative School Climate and High School Dropout Rates

    ERIC Educational Resources Information Center

    Jia, Yuane; Konold, Timothy R.; Cornell, Dewey

    2016-01-01

    This study tested the association between school-wide measures of an authoritative school climate and high school dropout rates in a statewide sample of 315 high schools. Regression models at the school level of analysis used teacher and student measures of disciplinary structure, student support, and academic expectations to predict overall high…

  10. High Schools Try out RTI

    ERIC Educational Resources Information Center

    Samuels, Christina A.

    2009-01-01

    "Response to intervention" (RTI) as a model for boosting student achievement has taken off like wildfire. When it comes to research on how best to implement the process for students in middle and high school, though, the flame abruptly fizzles out. There's little RTI research that is specific to secondary schools, although it has been…

  11. Minnesota State High School League.

    ERIC Educational Resources Information Center

    Minnesota State Office of the Legislative Auditor, St. Paul. Program Evaluation Div.

    The Minnesota State High School League administers a program of competitive athletic, musical, speech, and dramatics activities at district, region, and state levels. The league is a voluntary association of 433 public and 49 private schools. This monograph reports on a study of the league in regard to two questions: (1) Are policy-making and…

  12. Participatory Budgeting in High School.

    ERIC Educational Resources Information Center

    Harman, William T.

    1989-01-01

    Describes and analyzes a participatory approach to budgetary decision-making used by an exemplary high school. In spite of the budgetary forces dividing instructional departments, support units, and administration, an equitable division of resources provided to the school was consistently achieved each year. Includes 29 references. (MLH)

  13. Engagement, Alignment, and Rigor as Vital Signs of High-Quality Instruction: A Classroom Visit Protocol for Instructional Improvement and Research

    ERIC Educational Resources Information Center

    Early, Diane M.; Rogge, Ronald D.; Deci, Edward L.

    2014-01-01

    This paper investigates engagement (E), alignment (A), and rigor (R) as vital signs of high-quality teacher instruction as measured by the EAR Classroom Visit Protocol, designed by the Institute for Research and Reform in Education (IRRE). Findings indicated that both school leaders and outside raters could learn to score the protocol with…

  14. Theoferometer for High Accuracy Optical Alignment and Metrology

    NASA Technical Reports Server (NTRS)

    Toland, Ronald; Leviton, Doug; Koterba, Seth

    2004-01-01

    The accurate measurement of the orientation of optical parts and systems is a pressing problem for upcoming space missions, such as stellar interferometers, requiring the knowledge and maintenance of positions to the sub-arcsecond level. Theodolites, the devices commonly used to make these measurements, cannot provide the needed level of accuracy. This paper describes the design, construction, and testing of an interferometer system to fill the widening gap between future requirements and current capabilities. A Twyman-Green interferometer mounted on a 2 degree of freedom rotation stage is able to obtain sub-arcsecond, gravity-referenced tilt measurements of a sample alignment cube. Dubbed a 'theoferometer,' this device offers greater ease-of-use, accuracy, and repeatability than conventional methods, making it a suitable 21st-century replacement for the theodolite.

  15. Project Georgia High School/High Tech

    NASA Technical Reports Server (NTRS)

    2000-01-01

    The High School/High Tech initiative of the President's Committee on Employment of Disabilities, Georgia's application of the collaborative "Georgia Model" and NASA's commitment of funding have shown that opportunities for High School/High Tech students are unlimited. In Georgia, the partnership approach to meeting the needs of this program has opened doors previously closed. As the program grows and develops, reflecting the needs of our students and the marketplace, more opportunities will be available. Our collaboratives are there to provide these opportunities and meet the challenge of matching our students with appropriate education and career goals. Summing up the activities and outcomes of Project Georgia High School/High Tech is not difficult. Significant outcomes have already occurred in the Savannah area as a result of NASA's grant. The support of NASA has enabled Georgia Committee to "grow" High School/High Tech throughout the region-and, by example, the state. The success of the Columbus pilot project has fostered the proliferation of projects, resulting in more than 30 Georgia High School High Tech programs-with eight in the Savannah area.

  16. High School Teachers as Astronomers

    ERIC Educational Resources Information Center

    Sather, Robert

    1977-01-01

    Discusses a joint research program between several high school teachers and solar system astronomers in which data were collected on photoelectric observations of asteroids and minor planets via astronomical telescopes. (MLH)

  17. High School with No Walls

    ERIC Educational Resources Information Center

    Resnik, Henry S.

    1970-01-01

    An experimental high school program in Philadelphia, in which the students spend the day in various parts of the city and have an unusual curriculum, has met with a great deal of success and approval. (CK)

  18. Programming for High School Teachers

    NASA Astrophysics Data System (ADS)

    2009-08-01

    All portions of the High School Program will take place Sunday, August 16, and Monday, August 17, in the Grand Hyatt Washington Hotel, 1000 H Street, NW, Washington, DC. All attendees must register for the meeting to participate in the technical sessions and programs. Registration provides full access to the special High School Chemistry Day program, the entire ACS meeting (Sunday-Thursday), and the Exposition (Sunday evening-Wednesday). Attendees can track professional development (based on clock hours) for sessions attended at the ACS National Meeting. On completion and submission of ACS forms, participants will be mailed a certificate documenting their participation in the conference. The Organizer for the High School Program is Elena Pisciotta, who teaches at Damascus High School, Damascus, MD.

  19. The Opinions of High School Principals about Their Schools' Reputation

    ERIC Educational Resources Information Center

    Aksu, Ali; Orcan, Asli

    2015-01-01

    With a notice that was issued by the Ministry of National Education, all the public high schools were gradually converted into Anatolian High School as of 2010. The aim of this research is to determine the criteria of school reputation of Anatolian High schools and how and to what extent the criteria changed after the notice was issued.…

  20. High School Employment, School Performance, and College Entry

    ERIC Educational Resources Information Center

    Lee, Chanyoung; Orazem, Peter F.

    2010-01-01

    The proportion of U.S. high school students working during the school year ranges from 23% in the freshman year to 75% in the senior year. This study estimates how cumulative work histories during the high school years affect probability of dropout, high school academic performance, and the probability of attending college. Variations in…

  1. Interference of high-order harmonics generated from molecules at different alignment angles

    NASA Astrophysics Data System (ADS)

    Qin, Meiyan; Zhu, Xiaosong; Li, Yang; Zhang, Qingbin; Lan, Pengfei; Lu, Peixiang

    2014-01-01

    We theoretically investigate the interference effect of high-order harmonics generated from molecules at different alignment angles. It is shown that the interference of the harmonic emissions from molecules aligned at different angles can significantly modulate the spectra and result in the anomalous harmonic cutoffs observed in a recent experiment Nat. Phys. 7, 822 (2011), 10.1038/nphys2029]. The shift of the spectral minimum position with decreasing the degree of alignment is also explained by the interference effect of the harmonic emissions.

  2. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    2001-06-01

    My five-year term as Secondary School Chemistry Editor is coming to a close. I am excited about the direction the Journal has taken in relation to high school teachers, and challenge my successor to remain focused on the changing needs of high school teachers so that the Journal may continue to be the resource for teachers, both new and seasoned. If you have a vision of how to carry on JCE's mission for high school teachers, I encourage you to refer here for more information about the position and how to apply for it. Literature Cited

    1. National Commission on Mathematics and Science Education for the 21st Century, Before It's Too Late (accessed Apr 2001).
    2. Moore, J. W. J. Chem. Educ. 2000, 77, 1535.
    3. Bush, G. W. No Child Left Behind (accessed Apr 2001).

  3. Participation in Summer School and High School Graduation in the Sun Valley High School District

    ERIC Educational Resources Information Center

    Trujillo, Gabriel

    2012-01-01

    This study examines the effectiveness of a summer school credit recovery program in the Sun Valley High School District. Using logistic regression I assess the relationship between race, gender, course failure, school of origin and summer school participation for a sample of students that failed one or more classes in their first year of high…

  4. Carpet Aids Learning in High Performance Schools

    ERIC Educational Resources Information Center

    Hurd, Frank

    2009-01-01

    The Healthy and High Performance Schools Act of 2002 has set specific federal guidelines for school design, and developed a federal/state partnership program to assist local districts in their school planning. According to the Collaborative for High Performance Schools (CHPS), high-performance schools are, among other things, healthy, comfortable,…

  5. Computer Utilization in Middle Tennessee High Schools.

    ERIC Educational Resources Information Center

    Lucas, Sam

    In order to determine the capacity of high schools to profit from the pre-high school computer experiences of its students, a study was conducted to measure computer utilization in selected high schools of Middle Tennessee. Questionnaires distributed to 50 principals in 28 school systems covered the following areas: school enrollment; number and…

  6. Automated alignment of optical components for high-power diode lasers

    NASA Astrophysics Data System (ADS)

    Brecher, C.; Pyschny, N.; Haag, S.; Guerrero Lule, V.

    2012-03-01

    Despite major progress in developing brilliant laser sources a huge potential for cost reductions can be found in simpler setups and automated assembly processes, especially for large volume applications. In this presentation, a concept for flexible automation in optics assembly is presented which is based on standard micro assembly systems with relatively large workspace and modular micromanipulators to enhance the system with additional degrees of freedom and a very high motion resolution. The core component is a compact flexure-based micromanipulator especially designed for the alignment of micro optical components which will be described in detail. The manipulator has been applied in different scenarios to develop and investigate automated alignment processes. This paper focuses on the automated alignment of fast axis collimation (FAC) lenses which is a crucial step during the production of diode lasers. The handling and positioning system, the measuring arrangement for process feedback during active alignment as well as the alignment strategy will be described. The fine alignment of the FAC lens is performed with the micromanipulator under concurrent analysis of the far and the near field intensity distribution. An optimization of the image processing chains for the alignment of a FAC in front of a diode bar led to cycle times of less than 30 seconds. An outlook on other applications and future work regarding the development of automated assembly processes as well as new ideas for flexible assembly systems with desktop robots will close the talk.

  7. High School of the Future

    ERIC Educational Resources Information Center

    Jacobs, Joanne

    2016-01-01

    There are no bells at Salt Lake City's Innovations Early College High School, and there are no traditional "classes." Students show up when they like, putting in six and a half hours at school between 7:00 a.m. and 5:00 p.m. Working with a mentor teacher, students set their own goals and move through self-paced online lessons. They can…

  8. Orbital Verification of the CXO High-Resolution Mirror Assembly Alignment and Vignetting

    NASA Technical Reports Server (NTRS)

    Gaetz, T. J.; Jerius, D.; Edgar, R. J.; VanSpeybroeck, L. P.; Schwartz, D. A.; Markevitch, M.; Schulz, N. S.

    2000-01-01

    Prior to launch, the High Resolution Mirror Assembly (HRMA) of the Chandra X-ray Observatory underwent extensive ground testing at the X-ray Calibration Facility (XRCF) at the Marshall Space Flight Center in Huntsville. Observations made during the post-launch Orbital Activation and Calibration period, allow the on-orbit condition of the X-ray optics to be assessed. Based on these ground-based and on-orbit data, we examine the alignment of the x-ray optics based on the PSF, and the boresight and alignment of the optical axis alignment relative to the detectors. We examine the vignetting and the single reflection ghost suppression properties of the telescope. Slight imperfections in alignment lead to a small azimuthal dependence of the off-axis area; the morphology of off-axis images also shows an additional small azimuthal dependence varying as 1/2 the off-axis azimuth angle.

  9. Credentialing high school psychology teachers.

    PubMed

    Weaver, Kenneth A

    2014-09-01

    The National Standards for High School Psychology Curricula (American Psychological Association, 2013b) require a teacher with considerable psychology content knowledge to teach high school psychology courses effectively. In this study, I examined the initial teaching credential requirements for high school psychology teachers in the 50 states plus the District of Columbia. Thirty-four states (the District of Columbia is included as a state) require the social studies credential to teach high school psychology. An analysis of the items on standardized tests used by states to validate the content knowledge required to teach social studies indicates little or no presence of psychology, a reflection of psychology's meager presence in the social studies teacher preparation curricula. Thus, new teachers with the social studies teaching credential are not prepared to teach high school psychology according to the National Standards. Approval of The College, Career, and Civic Life (C3) Framework for Social Studies State Standards: Guidance for Enhancing the Rigor of K-12 Civics, Economics, Geography, and History (National Council for the Social Studies, 2013) presents an opportunity to advocate for establishing a psychology credential in the 34 states.

  10. High School Dropouts in California

    ERIC Educational Resources Information Center

    Lucile Packard Foundation for Children's Health, 2011

    2011-01-01

    Kidsdata.org shows the California Department of Education's adjusted four-year derived dropout rate, which reflects the estimated percentage of public high school dropouts over four years based on a single year's data, and the grade 9-12 dropout count. Data also are provided by race/ethnicity. This paper presents the statistics on high school…

  11. The New American High School.

    ERIC Educational Resources Information Center

    Marsh, David D., Ed.; Codding, Judy B., Ed.

    This book proposes strategies for improving high schools based on high standards, particularly the idea of the Certificate of Initial Mastery (CIM), and discusses changes necessary to ensure that all students attain mastery. Part 1, "Where We Are and Where We Ought to Be," contains two chapters. In "Just Passing Through: The Life of…

  12. Highly aligned stromal collagen is a negative prognostic factor following pancreatic ductal adenocarcinoma resection

    PubMed Central

    Drifka, Cole R.; Loeffler, Agnes G.; Mathewson, Kara; Keikhosravi, Adib; Eickhoff, Jens C.; Liu, Yuming; Weber, Sharon M.

    2016-01-01

    Risk factors for pancreatic ductal adenocarcinoma (PDAC) progression after surgery are unclear, and additional prognostic factors are needed to inform treatment regimens and therapeutic targets. PDAC is characterized by advanced sclerosis of the extracellular matrix, and interactions between cancer cells, fibrillar collagen, and other stromal components play an integral role in progression. Changes in stromal collagen alignment have been shown to modulate cancer cell behavior and have important clinical value in other cancer types, but little is known about its role in PDAC and prognostic value. We hypothesized that the alignment of collagen is associated with PDAC patient survival. To address this, pathology-confirmed tissues from 114 PDAC patients that underwent curative-intent surgery were retrospectively imaged with Second Harmonic Generation (SHG) microscopy, quantified with fiber segmentation algorithms, and correlated to patient survival. The same tissue regions were analyzed for epithelial-to-mesenchymal (EMT), α-SMA, and syndecan-1 using complimentary immunohistostaining and visualization techniques. Significant inter-tumoral variation in collagen alignment was found, and notably high collagen alignment was observed in 12% of the patient cohort. Stratification of patients according to collagen alignment revealed that high alignment is an independent negative factor following PDAC resection (p = 0.0153, multivariate). We also found that epithelial expression of EMT and the stromal expression of α-SMA and syndecan-1 were positively correlated with collagen alignment. In summary, stromal collagen alignment may provide additional, clinically-relevant information about PDAC tumors and underscores the importance of stroma-cancer interactions. PMID:27776346

  13. A Comparative Model of Field Investigations: Aligning School Science Inquiry with the Practices of Contemporary Science

    ERIC Educational Resources Information Center

    Windschitl, Mark; Dvornich, Karen; Ryken, Amy E.; Tudor, Margaret; Koehler, Gary

    2007-01-01

    Field investigations are not characterized by randomized and manipulated control group experiments; however, most school science and high-stakes tests recognize only this paradigm of investigation. Scientists in astronomy, genetics, field biology, oceanography, geology, and meteorology routinely select naturally occurring events and conditions and…

  14. High School Graduate Enrollment Trends. Focus Study.

    ERIC Educational Resources Information Center

    Mount San Antonio Coll., Walnut, CA.

    A study conducted at Mount San Antonio College (MSAC), California, to determine trends in the number of high school graduates in the MSAC district; the percentage of high school graduates attending MSAC; retention in district high schools between the ninth and twelfth grade; high school performance on California Assessment Program (CAP) Tests;…

  15. High School Economic Composition and College Persistence

    ERIC Educational Resources Information Center

    Niu, Sunny X.; Tienda, Marta

    2013-01-01

    Using a longitudinal sample of Texas high school seniors of 2002 who enrolled in college within the calendar year of high school graduation, we examine variation in college persistence according to the economic composition of their high schools, which serves as a proxy for unmeasured high school attributes that are conductive to postsecondary…

  16. Paving the Way: K-16 Partnerships for Higher Education Diversity and High School Reform

    ERIC Educational Resources Information Center

    Domina, Thurston; Ruzek, Erik

    2012-01-01

    Partnerships between colleges and universities and K-12 school districts attempt to improve access to higher education by tailoring college outreach and teacher professional development programs to local needs as well as aligning high school curricula with higher education admissions criteria. In this article, we conduct a quasi-experimental…

  17. Managing School Districts for High Performance: Cases in Public Education Leadership

    ERIC Educational Resources Information Center

    Childress, Stacey, Ed.; Elmore, Richard F., Ed.; Grossman, Allen, Ed.; Johnson, Susan Moore, Ed.

    2007-01-01

    "Managing School Districts for High Performance" brings together more than twenty case studies and other readings that offer a powerful and transformative approach to advancing and sustaining the work of school improvement. At the center of this work is the concept of organizational coherence: aligning organizational design, human…

  18. [Junior High School Program.

    ERIC Educational Resources Information Center

    Wisconsin Univ. - Stout, Menomonie. Center for Vocational, Technical and Adult Education.

    The document contains eight student directed and two teacher directed activity packages, and a proposed curriculum guide; all pertain to field objectives 1, 2, or 3 of the Wisconsin Guide to Local Curriculum Improvement in Industrial Education, K-12. Geared to the junior high level, the student packages are entitled: Repair of a Lamp Cord and…

  19. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    1999-12-01

    Chemistry and the Environment This issue contains more than 20 articles relating to the environment. Several articles of potential interest are indicated in the Table of Contents with the SSC mark (). Others are not so indicated because they depict use of expensive instrumentation or costly procedures, but if you have an interest in environmental chemistry you may wish to examine all the environmentally related articles. While many of the articles, both marked and unmarked, are targeted to college-level environmental chemistry curricula or to introductory courses for non-major, the methods described in several could be readily adapted to high school chemistry courses. One article likely to be of interest to teachers is found in News from Online, pp 1608-1609. The author explains how to use the U.S. Environment Protection Agency's EnviroMapper Web site to view and query environmental information. She mentioned finding a hazardous waste handler located near her home, so I decided to check the area near my home. I quickly located a natural gas salt dome storage facility marked on the map and, with a few more mouse clicks, I found information that included status of compliance with regulations, amounts of each compound released to the air in tons per year, and how to contact the corporation owning the site. Email and Web site addresses were included for the convenience of anyone wishing to contact the corporation. Students could learn a great deal about where they live that is relevant to chemistry by using the EPA site. Additional Web sites dealing with environmental issues and chemistry are cited in the sidebar at the bottom of p 1609. Among the articles that could be adapted to an advanced high school chemistry class or possibly even to an introductory class is one titled Bridge of Mandolin County (pp 1671-1672). It describes a case-study strategy similar to the scenarios used in ChemStudy. Students analyze information from various

  20. Guide to School Design: Healthy + High Performance Schools

    ERIC Educational Resources Information Center

    Healthy Schools Network, Inc., 2007

    2007-01-01

    A "healthy and high performance school" uses a holistic design process to promote the health and comfort of children and school employees, as well as conserve resources. Children may spend over eight hours a day at school with little, if any, legal protection from environmental hazards. Schools are generally not well-maintained; asthma is a…

  1. Teacher Safety and Authoritative School Climate in High Schools

    ERIC Educational Resources Information Center

    Gregory, Anne; Cornell, Dewey; Fan, Xitao

    2012-01-01

    Most research on school climate focuses on student well-being, with less attention on the safety of school faculty. The current study examined the relationship between an authoritative school climate (characterized by high levels of student support and disciplinary structure) and both teacher reports of victimization and school records of threats…

  2. Competition in rotation-alignment between high-j neutrons and protons in transfermium nuclei

    SciTech Connect

    Al-Khudair, Falih; Long Guilu; Sun Yang

    2009-03-15

    The study of rotation-alignment of quasiparticles probes sensitively the properties of high-j intruder orbits. The distribution of very-high-j orbits, which are consequences of the fundamental spin-orbit interaction, links with the important question of single-particle levels in superheavy nuclei. With the deformed single-particle states generated by the standard Nilsson potential, we perform Projected Shell Model calculations for transfermium nuclei where detailed spectroscopy experiments are currently possible. Specifically, we study the systematical behavior of rotation-alignment and associated band-crossing phenomenon in Cf, Fm, and No isotopes. Neutrons and protons from the high-j orbits are found to compete strongly in rotation-alignment, which gives rise to testable effects. Observation of these effects will provide direct information on the single-particle states in the heaviest nuclear mass region.

  3. Semiautomated Alignment of High-Throughput Metabolite Profiles with Chemometric Tools

    PubMed Central

    Xiao, Zi-dan; Liang, Yi-zeng; Chau, Foo-tim; Chan, Hoi-yan

    2017-01-01

    The rapid increase in the use of metabolite profiling/fingerprinting techniques to resolve complicated issues in metabolomics has stimulated demand for data processing techniques, such as alignment, to extract detailed information. In this study, a new and automated method was developed to correct the retention time shift of high-dimensional and high-throughput data sets. Information from the target chromatographic profiles was used to determine the standard profile as a reference for alignment. A novel, piecewise data partition strategy was applied for the determination of the target components in the standard profile as markers for alignment. An automated target search (ATS) method was proposed to find the exact retention times of the selected targets in other profiles for alignment. The linear interpolation technique (LIT) was employed to align the profiles prior to pattern recognition, comprehensive comparison analysis, and other data processing steps. In total, 94 metabolite profiles of ginseng were studied, including the most volatile secondary metabolites. The method used in this article could be an essential step in the extraction of information from high-throughput data acquired in the study of systems biology, metabolomics, and biomarker discovery. PMID:28168083

  4. High School Newspaper Financing: An Assessment.

    ERIC Educational Resources Information Center

    Dvorak, Jack

    Eighty schools that were members of the Iowa High School Press Association responded to a questionnaire about the school newspaper's financial status in light of public school budget cuts. The collected data indicated that nearly half of the respondent schools published newspapers at no cost and in cooperation with a community newspaper. Sixty…

  5. Resource Allocation in High Schools. Final Report.

    ERIC Educational Resources Information Center

    Hartman, William T.

    This study investigated the resource allocation process--how school administrators obtain the proper resources to operate their schools, distribute the available resources among the various school programs appropriately, and manage resources for effective educational results--in four high schools during the 1984-85 school year. Information was…

  6. Middle School Concept Helps High-Poverty Schools Become High-Performing Schools

    ERIC Educational Resources Information Center

    Picucci, Ali Callicoatte; Brownson, Amanda; Kahlert, Rahel; Sobel, Andrew

    2004-01-01

    The results of a study conducted by the Charles A. Dana Center at the University of Texas at Austin for the U.S. Department of Education during the 2001-02 school year showed that elements of the middle school concept can lead to improved student performance, even in high-poverty schools. This article describes common elements of the middle school…

  7. Regional High School Senior Survey.

    ERIC Educational Resources Information Center

    Day, Philip R., Jr.

    In order to identify the educational needs and aspirations of graduating high school seniors in the service region of the University of Maine at Augusta, a survey instrument was designed and administered to 1,950 seniors at 19 institutions. In all, 1,744 completed surveys were returned, a 92 percent response rate. The data are sub-grouped into…

  8. NOVA HIGH SCHOOL--INTRODUCTION

    ERIC Educational Resources Information Center

    COGSWELL, JOHN F.

    AN OVERVIEW WAS PRESENTED OF THE ORGANIZATION AND OPERATION OF A NUMBER OF INNOVATIVE ASPECTS OF THE NOVA HIGH SCHOOL IN FORT LAUDERDALE, FLORIDA. NOVA IS PART OF A COMPLEX PLANNED TO INCLUDE GRADES K THROUGH 12. STUDENTS MUST APPLY TO ATTEND NOVA AND ARE SELECTED PRIMARILY ON THE RELATION OF STUDENT PERFORMANCE TO MEASURES OF APTITIDE. VOCATIONAL…

  9. Team Teaching in High School

    ERIC Educational Resources Information Center

    Mandel, Kenneth; Eiserman, Terry

    2016-01-01

    Too often at the high school level, teachers work in isolation, without the ability to see other practitioners at work. Team teaching offers an effective antidote: It provides a comfortable environment in which to grow because it enables teachers to learn from another professional on a regular basis. "Teaming," notes the authors,…

  10. Computerizing a High School Library.

    ERIC Educational Resources Information Center

    Whelan, Errol A.; Chan, Jeanie

    1988-01-01

    Describes how the Swift-Current Comprehensive High School (Saskatchewan) library computerized to create an online catalog, provide access to remote databases, and acquire CD-ROM reference systems. Objectives, hardware and software selection and costs, implementation, and evaluation are discussed. Seven references are listed, and a directory of…

  11. Automating a High School Restroom.

    ERIC Educational Resources Information Center

    Ritner-Heir, Robbin

    1999-01-01

    Discusses how one high school transformed its restrooms into cleaner and more vandal-resistant environments by automating them. Solutions discussed include installing perforated stainless steel panel ceilings, using epoxy-based paint for walls, selecting china commode fixtures instead of stainless steel, installing electronic faucets and sensors,…

  12. High School Health Science Program.

    ERIC Educational Resources Information Center

    Kirkwood Community Coll., Cedar Rapids, IA.

    This curriculum guide contains units of study for high school health science courses in Iowa. The first section is a competency outline for three topics: introduction to health care; nurse aide/orderly; and rehabilitation aide. For each competency, the following information is provided: objectives; suggested learning activities; resources; and…

  13. Middle/High School Projects.

    ERIC Educational Resources Information Center

    Learning By Design, 2002

    2002-01-01

    Describes the buildings of two combined middle/high schools, including the educational context and design goals. Includes information on the architects and design team, a general building description, and general construction costs and specifications. Also provides a rough site plan and photographs. (EV)

  14. Secretarial Practice for High Schools.

    ERIC Educational Resources Information Center

    New York City Board of Education, Brooklyn, NY. Bureau of Curriculum Development.

    The handbook provides teachers with a guide to a course of vocational training designed to qualify high school stenographic majors for initial employment as stenographers or potential secretaries. The subject is taught by means of practical application under supervision and is meant to serve as a culmination of secretarial training. The course…

  15. Getting Ready for High School

    ERIC Educational Resources Information Center

    Barber, Karra

    2008-01-01

    In this article, the author describes her anxiety concerning her 14-year-old son being able to sit for five consecutive hours and take the entrance exam required for him to attend a private high school, should he decide that's what he wants to do next year. What she discovered about herself through this process is never to underestimate her son…

  16. INSPIRED High School Computing Academies

    ERIC Educational Resources Information Center

    Doerschuk, Peggy; Liu, Jiangjiang; Mann, Judith

    2011-01-01

    If we are to attract more women and minorities to computing we must engage students at an early age. As part of its mission to increase participation of women and underrepresented minorities in computing, the Increasing Student Participation in Research Development Program (INSPIRED) conducts computing academies for high school students. The…

  17. RAMICS: trainable, high-speed and biologically relevant alignment of high-throughput sequencing reads to coding DNA

    PubMed Central

    Wright, Imogen A.; Travers, Simon A.

    2014-01-01

    The challenge presented by high-throughput sequencing necessitates the development of novel tools for accurate alignment of reads to reference sequences. Current approaches focus on using heuristics to map reads quickly to large genomes, rather than generating highly accurate alignments in coding regions. Such approaches are, thus, unsuited for applications such as amplicon-based analysis and the realignment phase of exome sequencing and RNA-seq, where accurate and biologically relevant alignment of coding regions is critical. To facilitate such analyses, we have developed a novel tool, RAMICS, that is tailored to mapping large numbers of sequence reads to short lengths (<10 000 bp) of coding DNA. RAMICS utilizes profile hidden Markov models to discover the open reading frame of each sequence and aligns to the reference sequence in a biologically relevant manner, distinguishing between genuine codon-sized indels and frameshift mutations. This approach facilitates the generation of highly accurate alignments, accounting for the error biases of the sequencing machine used to generate reads, particularly at homopolymer regions. Performance improvements are gained through the use of graphics processing units, which increase the speed of mapping through parallelization. RAMICS substantially outperforms all other mapping approaches tested in terms of alignment quality while maintaining highly competitive speed performance. PMID:24861618

  18. Middle Grades and High Schools Use Effective Strategies to Prepare Students for Challenging High School Studies. High Schools That Work

    ERIC Educational Resources Information Center

    Southern Regional Education Board (SREB), 2011

    2011-01-01

    Middle grades schools have their hands full in working with elementary schools and high schools to improve the likelihood of success for middle grades students--accelerating learning, helping elementary students move seamlessly into the middle grades, preparing middle grades students for rigorous high school courses, changing organization and…

  19. High-harmonic and terahertz wave spectroscopy (HATS) for aligned molecules

    NASA Astrophysics Data System (ADS)

    Huang, Yindong; Meng, Chao; Zhao, Jing; Wang, Xiaowei; Lü, Zhihui; Zhang, Dongwen; Yuan, Jianmin; Zhao, Zengxiu

    2016-12-01

    We present the experimental and theoretical details of our recent published letter Huang et al (2015 Phys. Rev. Lett. 115 123002) on synchronized high-harmonic and terahertz-wave spectroscopy (HATS) from nonadiabatically aligned nitrogen molecules in dual-color laser fields. By associating alignment-angle dependent terahertz wave generation (TWG) with high harmonic generation (HHG), the angular differential photoionization cross section (PICS) for molecules can be reconstructed. The angles at which the PICS’s minima are located show great convergence between the theoretical predictions and the experimentally deduced results when choosing a suitable internuclear distance. We also show the optimal relative phase between the dual-color laser fields for TWG does not change with the alignment angle at a precision of about 50 attoseconds. This all-optical method provides an alternative for investigating molecular structures and dynamics.

  20. Highly dense and perfectly aligned single-walled carbon nanotubes fabricated by diamond wire drawing dies.

    PubMed

    Liu, Guangtong; Zhao, Yuanchun; Deng, Ke; Liu, Zheng; Chu, Weiguo; Chen, Jingran; Yang, Yanlian; Zheng, Kaihong; Huang, Haibo; Ma, Wenjun; Song, Li; Yang, Haifang; Gu, Changzhi; Rao, Guanghui; Wang, Chen; Xie, Sishen; Sun, Lianfeng

    2008-04-01

    We have developed a low-cost and effective method to align single-walled carbon nanotubes (SWNTs) using a series of diamond wire drawing dies. The obtained SWNTs are highly dense and perfectly aligned. X-ray diffraction (XRD) indicates that the highly dense and perfectly aligned SWNTs (HDPA-SWNTs) form a two-dimensional triangular lattice with a lattice constant of 19.62 A. We observe a sharp (002) reflection in the XRD pattern, which should be ascribed to an intertube spacing 3.39 A of adjacent SWNTs. Raman spectra reveal that the radical breath mode (RBM) of SWNTs with larger diameter in the HDPA-SWNTs is suppressed compared with that of as-grown SWNTs. The HDPA-SWNTs have a large density, approximately 1.09 g/cm 3, and a low resistivity, approximately 2 m Omega cm, at room temperature, as well as a large response to light illumination.

  1. Polarization shaping of high-order harmonics in laser-aligned molecules

    NASA Astrophysics Data System (ADS)

    Skantzakis, E.; Chatziathanasiou, S.; Carpeggiani, P. A.; Sansone, G.; Nayak, A.; Gray, D.; Tzallas, P.; Charalambidis, D.; Hertz, E.; Faucher, O.

    2016-12-01

    The present work reports on the generation of short-pulse coherent extreme ultraviolet radiation of controlled polarization. The proposed strategy is based on high-order harmonics generated in pre-aligned molecules. Field-free molecular alignment produced by a short linearly-polarized infrared laser pulse is used to break the isotropy of a gas medium. Driving the aligned molecules by a circularly-polarized infrared pulse allows to transfer the anisotropy of the medium to the polarization of the generated harmonic light. The ellipticity of the latter is controlled by adjusting the angular distribution of the molecules at the time they interact with the driving pulse. Extreme ultraviolet radiation produced with high degree of ellipticity (close to circular) is demonstrated.

  2. Polarization shaping of high-order harmonics in laser-aligned molecules

    PubMed Central

    Skantzakis, E.; Chatziathanasiou, S.; Carpeggiani, P. A.; Sansone, G.; Nayak, A.; Gray, D.; Tzallas, P.; Charalambidis, D.; Hertz, E.; Faucher, O.

    2016-01-01

    The present work reports on the generation of short-pulse coherent extreme ultraviolet radiation of controlled polarization. The proposed strategy is based on high-order harmonics generated in pre-aligned molecules. Field-free molecular alignment produced by a short linearly-polarized infrared laser pulse is used to break the isotropy of a gas medium. Driving the aligned molecules by a circularly-polarized infrared pulse allows to transfer the anisotropy of the medium to the polarization of the generated harmonic light. The ellipticity of the latter is controlled by adjusting the angular distribution of the molecules at the time they interact with the driving pulse. Extreme ultraviolet radiation produced with high degree of ellipticity (close to circular) is demonstrated. PMID:27995974

  3. High accuracy alignment of the RC system coupled with the relay lens

    NASA Astrophysics Data System (ADS)

    Mu, Shengbo; Li, Yang; Du, Guojun; Xin, Wei; Zhang, Qingchun

    2016-10-01

    The area array CMOS devices are usually used on the staring imaging space remote sensors on which the wide field angle. Only an RC system cannot match the requirement. So at present, the RC system coupled with a group of relay lens which is always used in the long focal length and wide field angle system can extend the field angle because the aberration of off axis of the RC system can be corrected by the relay lens. In order to reach the high precision alignment of the system, the computer aided alignment technology and the high precision spatial location reconfiguration technology will be introduced. Comparing with the group of relay lens and the secondary mirror both adjusted, this method fixed the group of relay lens. It made the secondary mirror be the only variable. The number of the variable of the alignment was reduced. The efficiency of the alignment was also improved and the period was shortened. The result was that the MTF of all the nine field angles was better than 0.315, which the design result was 0.345. The factor of the alignment was 91 percent.

  4. Crystallographic alignment of high-density gallium nitride nanowire arrays.

    PubMed

    Kuykendall, Tevye; Pauzauskie, Peter J; Zhang, Yanfeng; Goldberger, Joshua; Sirbuly, Donald; Denlinger, Jonathan; Yang, Peidong

    2004-08-01

    Single-crystalline, one-dimensional semiconductor nanostructures are considered to be one of the critical building blocks for nanoscale optoelectronics. Elucidation of the vapour-liquid-solid growth mechanism has already enabled precise control over nanowire position and size, yet to date, no reports have demonstrated the ability to choose from different crystallographic growth directions of a nanowire array. Control over the nanowire growth direction is extremely desirable, in that anisotropic parameters such as thermal and electrical conductivity, index of refraction, piezoelectric polarization, and bandgap may be used to tune the physical properties of nanowires made from a given material. Here we demonstrate the use of metal-organic chemical vapour deposition (MOCVD) and appropriate substrate selection to control the crystallographic growth directions of high-density arrays of gallium nitride nanowires with distinct geometric and physical properties. Epitaxial growth of wurtzite gallium nitride on (100) gamma-LiAlO(2) and (111) MgO single-crystal substrates resulted in the selective growth of nanowires in the orthogonal [1\\[Evec]0] and [001] directions, exhibiting triangular and hexagonal cross-sections and drastically different optical emission. The MOCVD process is entirely compatible with the current GaN thin-film technology, which would lead to easy scale-up and device integration.

  5. Bullying among Turkish High School Students

    ERIC Educational Resources Information Center

    Kepenekci, Yasemin Karaman; Cinkir, Sakir

    2006-01-01

    Objective: The purpose of this study was to investigate school bullying among public high school students in Turkey. Method: This study used a survey to examine different aspects of bullying in schools. The participants (N=692) were students chosen from five state high schools in Ankara in the 2000-2001 academic year. A self-administered…

  6. Content Delivery for a Virtual High School

    ERIC Educational Resources Information Center

    Lopez, W. Joy

    2003-01-01

    In the fall of 2002, Visions In Education, a charter school for home-schooled and independent-study children, opened Visions High School Academy (www.visions academy.org), a virtual project-based high school. The five educators who started the program--Mark Jackson, Fred Lamora, Celine Darby, Jennifer Russell and the author--identified three…

  7. Why Our High Schools Need the Arts

    ERIC Educational Resources Information Center

    Davis, Jessica Hoffmann

    2011-01-01

    In this follow-up to her bestselling book, "Why Our Schools Need the Arts", Jessica Hoffmann Davis addresses the alarming drop-out rate in our high schools and presents a thoughtful, evidence-based argument that increasing arts education in the high school curriculum will keep kids in school. Davis shares compelling voices of teachers and their…

  8. How to Identify High-Growth Schools

    ERIC Educational Resources Information Center

    Pfeiffer, Linda E.

    2015-01-01

    When researching school options, parents may want to look for schools with high-growth scores which, according to research, may be indicators of other characteristics such as programming, leadership, culture, and size. This quick guide offers parents tips on how to identify high-growth schools and what to ask when evaluating school options. An…

  9. School Characteristics Related to High School Dropout Rates

    ERIC Educational Resources Information Center

    Christle, Christine A.; Jolivette, Kristine; Nelson, C. Michael

    2007-01-01

    Dropping out of high school culminates a long-term process of disengagement from school and has profound social and economic consequences for students, their families, and their communities. Students who drop out of high school are more likely to be unemployed, to earn less than those who graduate, to be on public assistance, and to end up in…

  10. A Study of School Size among Alabama's Public High Schools

    ERIC Educational Resources Information Center

    Lindahl, Ronald A.; Cain, Patrick M., Sr.

    2012-01-01

    The purpose of this study was to examine the relationship between the size of Alabama's public high schools, selected school quality and financial indicators, and their students' performance on standardized exams. When the socioeconomic level of the student bodies is held constant, the size of high schools in Alabama has relatively little…

  11. Identifying Exemplary School Counseling Practices in Nationally Recognized High Schools

    ERIC Educational Resources Information Center

    Militello, Matthew; Carey, John; Dimmitt, Carey; Lee, Vivian; Schweid, Jason

    2009-01-01

    The National Center for School Counseling Outcome Research (CSCOR) at the University of Massachusetts-Amherst studied exemplary practices of 18 high schools that received recognition for college preparation and placement in 2004 and 2005. Through interviews with key personnel at each of the high schools, the researchers generated a set of ten…

  12. Probing molecular frame photoelectron angular distributions via high-order harmonic generation from aligned molecules

    NASA Astrophysics Data System (ADS)

    Lin, C. D.; Jin, Cheng; Le, Anh-Thu; Lucchese, R. R.

    2012-10-01

    We analyse the theory of single photoionization (PI) and high-order harmonic generation (HHG) by intense lasers from aligned molecules. We show that molecular-frame photoelectron angular distributions can be extracted from these measurements. We also show that, under favourable conditions, the phase of PI transition dipole matrix elements can be extracted from the HHG spectra. Furthermore, by varying the polarization axis of the HHG generating laser with respect to the polarization axis of the aligning laser, it is possible to extract angle-dependent tunnelling ionization rates for different subshells of the molecules.

  13. Integrated crystal mounting and alignment system for high-throughput biological crystallography

    DOEpatents

    Nordmeyer, Robert A.; Snell, Gyorgy P.; Cornell, Earl W.; Kolbe, William; Yegian, Derek; Earnest, Thomas N.; Jaklevic, Joseph M.; Cork, Carl W.; Santarsiero, Bernard D.; Stevens, Raymond C.

    2005-07-19

    A method and apparatus for the transportation, remote and unattended mounting, and visual alignment and monitoring of protein crystals for synchrotron generated x-ray diffraction analysis. The protein samples are maintained at liquid nitrogen temperatures at all times: during shipment, before mounting, mounting, alignment, data acquisition and following removal. The samples must additionally be stably aligned to within a few microns at a point in space. The ability to accurately perform these tasks remotely and automatically leads to a significant increase in sample throughput and reliability for high-volume protein characterization efforts. Since the protein samples are placed in a shipping-compatible layered stack of sample cassettes each holding many samples, a large number of samples can be shipped in a single cryogenic shipping container.

  14. Integrated crystal mounting and alignment system for high-throughput biological crystallography

    DOEpatents

    Nordmeyer, Robert A.; Snell, Gyorgy P.; Cornell, Earl W.; Kolbe, William F.; Yegian, Derek T.; Earnest, Thomas N.; Jaklevich, Joseph M.; Cork, Carl W.; Santarsiero, Bernard D.; Stevens, Raymond C.

    2007-09-25

    A method and apparatus for the transportation, remote and unattended mounting, and visual alignment and monitoring of protein crystals for synchrotron generated x-ray diffraction analysis. The protein samples are maintained at liquid nitrogen temperatures at all times: during shipment, before mounting, mounting, alignment, data acquisition and following removal. The samples must additionally be stably aligned to within a few microns at a point in space. The ability to accurately perform these tasks remotely and automatically leads to a significant increase in sample throughput and reliability for high-volume protein characterization efforts. Since the protein samples are placed in a shipping-compatible layered stack of sample cassettes each holding many samples, a large number of samples can be shipped in a single cryogenic shipping container.

  15. An anti-disturbance high-precision alignment for distributed POS based on inertial reference frame

    NASA Astrophysics Data System (ADS)

    Bai, Lijian; Wang, Yue

    2017-03-01

    The distributed POS is playing an important role in the ultra-high resolution aerial survey and remote sensing system, and can accurately provide time-spatial reference information for various imaging sensors. However, the distributed POS faces a special problem that the flexible arms used to connect the inertial measurement units (IMUs) would deteriorate the phenomenon that external disturbance leads to serious alignment errors. In order to improve the alignment precision of distributed POS in external disturbance, an anti-disturbance coarse alignment based on inertial reference frame is proposed. This method is developed mainly based on the structure of non-collinear vectors, which are constructed by a velocity vector determined by gravity vector integration. The disturbed acceleration and rotation is decreased a lot by the integral operation in the proposed method. Finally, the experiments were carried out and verified the validity of the proposed method.

  16. Aligned Carbon Nanotubes for Highly Efficient Energy Generation and Storage Devices

    DTIC Science & Technology

    2012-01-24

    Nanotubes, graphene, functionalization, aligned arrays, energy-related devices 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT 18...4 1.3 Soluble P3HT-Grafted CNTs for Efficient Bilayer-heterojunction Photovoltaic Devices.............. 6 1.4 Highly-Efficient Metal...heterojunction Photovoltaic Devices

  17. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    2000-09-01

    Alternative Assessment The trend in several states to use high-stakes achievement test scores to evaluate districts, schools, and teachers appears to be at odds with the intent of the National Science Education Assessment Standards. Recently I read several postings on an Internet discussion list in which several high school teachers expressed differing opinions on how to deal with the situation. There seemed to be general agreement, however, that as increased emphasis is placed on preparation for high-stakes end-of-course examinations it becomes more difficult to assess conceptual understanding. High school chemistry teachers are an innovative lot, and I am confident that ways will be found to evaluate understanding no matter what. This month's issue contains two examples of using student-constructed posters as a means of assessment. Although we most often associate poster presentations with research, such as a science fair project, these articles show that posters may also be used to assess student learning in class settings. The examples are from lower-division college courses, but they may be equally useful in high school chemistry courses. An article titled Using Poster Sessions as an Alternative to Written ExaminationsThe Poster Exam by Pamela Mills and four co-authors contains a detailed explanation of how student-constructed posters can be used to assess student learning. A number of related articles are listed in the Literature Cited section. Another example is found in A Poster Session in Organic Chemistry That Markedly Enhanced Student Learning by P. A. Huddle. The same author also contributed the article How to Present a Paper or Poster in which useful, straightforward suggestions for communicating information and ideas clearly are provided.

  18. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    1999-08-01

    Care to Share? An Informal Syllabus Exchange A recent email message from Thomas Shiland, who teaches at Saratoga Springs Senior High School, noted that the process of revising the high school chemistry syllabus is underway in New York State. He expressed a strong interest in helping construct a chemistry syllabus that represents the best thinking about appropriate content. He wondered if it would be possible to develop a way in which different secondary chemistry syllabi could easily be exchanged. It is likely that readers from other states and countries are involved in a similar process and might also be interested in exchanging syllabi. Many states do not use the term syllabus to describe their guiding curricular document for chemistry but rather refer to it as a framework or as guidelines. In most cases, the document includes a list of key ideas or topics, performance indicators, and the major understandings associated with each key idea. Such documents would be appropriate for exchange among those of you involved in the revision process. If you are interested in arranging an exchange please contact me by email at j.e.howell@usm.edu or by mail at J. E. Howell, Box 5043, USM, Hattiesburg, MS39406-5043, USA. High School Day Information The High School Chemistry Program at the American Chemical Society National Meeting in New Orleans, Louisiana will be held Sunday, August 22, 1999, at the Doubletree Hotel, 300 Canal Street. If you wish to register only for the High School Day activities, which includes a pass to the ACS Exposition, a special registration form is available from Lillie Tucker-Akin, 2800 Reynard Dr., Tupelo, MS38801; sci4me@aol.com; fax: 662/566-7906. Advance registration is 25 and the cost of the High School Luncheon is 12. Register in advance by August 1, 1999, or from 7:45 to 8:30 a.m. at the High School Day table in the conference room area of the Doubletree. The workshop schedule is shown below. Secondary School Feature Articles * Exploring the

  19. Sexting by High School Students.

    PubMed

    Strassberg, Donald S; Cann, Deanna; Velarde, Valerie

    2017-01-03

    In the last 8 years, several studies have documented that many adolescents acknowledge having exchanged sexually explicit cell phone pictures of themselves, a behavior termed sexting. Differences across studies in how sexting was defined, recruitment strategies, and cohort have resulted in sometimes significant differences in as basic a metric as what percentage of adolescents have sent, received, or forwarded such sexts. The psychosocial and even legal risks associated with sexting by minors are significantly serious that accurate estimates of its prevalence, including over time, are important to ascertain. In the present study, students (N = 656) from a single private high school were surveyed regarding their participation in sexting. Students at this same school were similarly surveyed four years earlier. In this second survey, reported rates of sending (males 15.8%; females 13.6%) and receiving (males 40.5%; females 30.6%) sexually explicit cell phone pictures (revealing genitals or buttocks of either sex or female breasts) were generally similar to those reported at the same school 4 years earlier. Rates of forwarding sexts (males 12.2%; females 7.6%) were much lower than those previously acknowledged at this school. Correlates of sexting in this study were similar to those reported previously. Overall, our findings suggest that sexting by adolescents (with the exception of forwarding) remains a fairly common behavior, despite its risks.

  20. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    1999-07-01

    Secondary School Feature Articles * Super Science Connections, by Patricia B. McKean, p 916 * A pHorseshoe, by Roger Plumsky, p 935 National Conferences in Your Part of the Country For the past several months, considerable space in this column has been devoted to forthcoming national conferences and conventions and to highlights of conferences past. For some of us, location is fairly unimportant; but for most of us travel costs and time are both factors to consider when choosing a conference. The community of high school chemistry teachers is favored by the number of national conventions and conferences that are held each year in different locations. In 1999, for example, the spring National Meeting of the American Chemical Society was in Anaheim and the National Science Teachers Association National Convention was in Boston. This summer CHEMED '99 will be held in Fairfield, CT, August 1-5, and the fall National ACS Meeting will be in New Orleans. Teachers from the mid-South especially should consider attending the High School Program at New Orleans, described below by Lillie Tucker Akin, Chairperson of the Division's High School Program Committee. The event will be held on Sunday to minimize conflicts with the beginning of the school year. JCE at CHEMED '99 Stop by the JCE booth at CHEMED '99 in the exhibits area to learn more about the wide array of print and nonprint resources you can use in your classroom and laboratory. Members of the editorial staff will be on hand to talk with you. You are invited to participate in a workshop, "Promoting Active Learning through JCE Activity Sheets and Software", on Monday, August 1, 8:30-10:30. The free hands-on workshop is number WT11 and we encourage you to include it among your choices in the blanks provided on the third page of the registration form. We will also conduct an interactive session to listen to ideas for making the Journal more useful to you. Check the final program for location and time or inquire at the JCE

  1. High-throughput and high-yield fabrication of uniaxially-aligned chitosan-based nanofibers by centrifugal electrospinning.

    PubMed

    Erickson, Ariane E; Edmondson, Dennis; Chang, Fei-Chien; Wood, Dave; Gong, Alex; Levengood, Sheeny Lan; Zhang, Miqin

    2015-12-10

    The inability to produce large quantities of nanofibers has been a primary obstacle in advancement and commercialization of electrospinning technologies, especially when aligned nanofibers are desired. Here, we present a high-throughput centrifugal electrospinning (HTP-CES) system capable of producing a large number of highly-aligned nanofiber samples with high-yield and tunable diameters. The versatility of the design was revealed when bead-less nanofibers were produced from copolymer chitosan/polycaprolactone (C-PCL) solutions despite variations in polymer blend composition or spinneret needle gauge. Compared to conventional electrospinning techniques, fibers spun with the HTP-CES not only exhibited superior alignment, but also better diameter uniformity. Nanofiber alignment was quantified using Fast Fourier Transform (FFT) analysis. In addition, a concave correlation between the needle diameter and resultant fiber diameter was identified. This system can be easily scaled up for industrial production of highly-aligned nanofibers with tunable diameters that can potentially meet the requirements for various engineering and biomedical applications.

  2. High-throughput and high-yield fabrication of uniaxially-aligned chitosan-based nanofibers by centrifugal electrospinning

    PubMed Central

    Erickson, Ariane E.; Edmondson, Dennis; Chang, Fei-Chien; Wood, Dave; Gong, Alex; Levengood, Sheeny Lan; Zhang, Miqin

    2016-01-01

    The inability to produce large quantities of nanofibers has been a primary obstacle in advancement and commercialization of electrospinning technologies, especially when aligned nanofibers are desired. Here, we present a high-throughput centrifugal electrospinning (HTP-CES) system capable of producing a large number of highly-aligned nanofiber samples with high-yield and tunable diameters. The versatility of the design was revealed when bead-less nanofibers were produced from copolymer chitosan/polycaprolactone (C-PCL) solutions despite variations in polymer blend composition or spinneret needle gauge. Compared to conventional electrospinning techniques, fibers spun with the HTP-CES not only exhibited superior alignment, but also better diameter uniformity. Nanofiber alignment was quantified using Fast Fourier Transform (FFT) analysis. In addition, a concave correlation between the needle diameter and resultant fiber diameter was identified. This system can be easily scaled up for industrial production of highly-aligned nanofibers with tunable diameters that can potentially meet the requirements for various engineering and biomedical applications. PMID:26428148

  3. High School Teachers Win ACS Prizes

    NASA Astrophysics Data System (ADS)

    Editorial Staff, Jce

    2009-07-01

    William E. Snyder is the 2009 winner of the ACS Division of Chemical Education Central Region Award for Excellence in High School Teaching; Sally Mitchell is the winner of the 2009 James Bryant Conant Award in High School Chemistry Teaching.

  4. Indoor Air Quality in High Performance Schools

    EPA Pesticide Factsheets

    High performance schools are facilities that improve the learning environment while saving energy, resources, and money. The key is understanding the lifetime value of high performance schools and effectively managing priorities, time, and budget.

  5. State Department Report: Wilde Lake High School.

    ERIC Educational Resources Information Center

    Wilde Lake High School, Columbia, MD.

    The report describes general education courses offered at Wilde Lake High School--a school that maintains a flexible environment conducive to learning and hopefully fosters individual development and growth. The aim of the school is to create an environment that helps students: adjust and cope with their environment outside the school; develop…

  6. High-performance supercapacitors based on vertically aligned carbon nanotubes and nonaqueous electrolytes.

    PubMed

    Kim, Byungwoo; Chung, Haegeun; Kim, Woong

    2012-04-20

    We demonstrate the high performance of supercapacitors fabricated with vertically aligned carbon nanotubes and nonaqueous electrolytes such as ionic liquids and conventional organic electrolytes. Specific capacitance, maximum power and energy density of the supercapacitor measured in ionic liquid were ~75 F g(-1), ~987 kW kg(-1) and ~27 W h kg(-1), respectively. The high power performance was consistently indicated by a fast relaxation time constant of 0.2 s. In addition, electrochemical oxidation of the carbon nanotubes improved the specific capacitance (~158 F g(-1)) and energy density (~53 W h kg(-1)). Both high power and energy density could be attributed to the fast ion transport realized by the alignment of carbon nanotubes and the wide operational voltage defined by the ionic liquid. The demonstrated carbon-nanotube- and nonaqueous-electrolyte-based supercapacitors show great potential for the development of high-performance energy storage devices.

  7. Eastern Michigan University's First Consociate School: Farmington High School.

    ERIC Educational Resources Information Center

    Gorenflo, Barbara A.; And Others

    This paper reports on a collaboration between Eastern Michigan University (EMU) College of Education and Farmington High School (FHS), EMU's first consociate school, i.e., a school site that has developed an exceptionally strong working relationship with a college of education. Leaders of both institutions identified a number of creative ways they…

  8. Investigating High School Teachers' Perceptions of School Environment.

    ERIC Educational Resources Information Center

    Huang, Shwu-yong L.

    This study examined public high school teachers' perceptions of school environment, focusing on satisfaction, collegiality, teacher-student relationships, discipline, principal leadership, equity, and teacher influence. It also investigated differences in attitudes by gender. Participating teachers from 8 schools in the Southern United States…

  9. A University Based Alternative School for High School Dropouts.

    ERIC Educational Resources Information Center

    Franklin, Cynthia; And Others

    This study evaluated the effectiveness of an educational and treatment program for high school dropouts initiated by a private alternative school contracting with a graduate school of social work. The Cassata Program, a joint effort by the Cassata Learning Center and the University of Texas at Arlington, was designed to improve students' academic…

  10. Rural Public School Dropouts: Data from High School and Beyond.

    ERIC Educational Resources Information Center

    McCaul, Edward

    This paper focuses on data concerning the characteristics, attitudes, and school experiences of rural dropouts. The discussion, which draws largely upon the High School and Beyond database, considers two primary concerns. The first deals with differences between rural dropouts and their rural counterparts who stayed in school. Areas of inquiry…

  11. Adolescents Transitioning to High School.

    PubMed

    Williams, Susan G; Langhinrichsen-Rohling, Jennifer; Wornell, Cory; Finnegan, Heather

    2017-01-01

    Adolescents transitioning to high school may be at greater risk of depression and suicide if they are victims of bullying behavior. This study explored sex differences in bullying victimization (physical, verbal/social, and cyberbullying) and the impact on depressive symptoms and suicidal behaviors in ninth-grade students ( N = 233). Females reported significantly more verbal/social and cyberbullying than male students. There were no significant sex differences in physical bullying; male students who reported physical bullying victimization were more likely to experience depressive symptoms. Verbal/social bullying predicted depressive symptoms in males and females. Females who reported being victims of cyberbullying were more likely to report depressive symptoms, suicide ideation, and suicide attempts. Eighteen students reported suicide attempts, and each also experienced verbal/social bullying. School nurses are positioned to reach out to transitioning students, screen for mental health issues, provide a safe place to talk about bullying experiences, and promote positive mental health.

  12. Western North Dakota High School Senior Profiles.

    ERIC Educational Resources Information Center

    Bickel, David; Markell, Clark

    The objectives of this study were (1) to assess the attitudes of high school seniors in North Dakota toward isolationism and toward lignite coal development, and (2) to determine the future occupational and educational plans of high school seniors in the sampled area. A survey instrument was sent early in 1974 to all high school seniors in a…

  13. High School Economic Composition and College Persistence.

    PubMed

    Niu, Sunny X; Tienda, Marta

    2013-02-01

    Using a longitudinal sample of Texas high school seniors of 2002 who enrolled in college within the calendar year of high school graduation, we examine variation in college persistence according to the economic composition of their high schools, which serves as a proxy for unmeasured high school attributes that are conductive to postsecondary success. Students who graduated from affluent high schools have the highest persistence rates and those who attended poor high schools have the lowest rates. Multivariate analyses indicate that the advantages in persistence and on-time graduation from four-year colleges enjoyed by graduates of affluent high schools cannot be fully explained by high school college orientation and academic rigor, family background, pre-college academic preparedness or the institutional characteristics. High school college orientation, family background and pre-college academic preparation largely explain why graduates from affluent high schools who first enroll in two-year colleges have higher transfer rates to four-year institutions; however these factors and college characteristics do not explain the lower transfer rates for students from poor high schools. The conclusion discusses the implications of the empirical findings in light of several recent studies that call attention to the policy importance of high schools as a lever to improve persistence and completion rates via better institutional matches.

  14. High School Economic Composition and College Persistence

    PubMed Central

    Tienda, Marta

    2013-01-01

    Using a longitudinal sample of Texas high school seniors of 2002 who enrolled in college within the calendar year of high school graduation, we examine variation in college persistence according to the economic composition of their high schools, which serves as a proxy for unmeasured high school attributes that are conductive to postsecondary success. Students who graduated from affluent high schools have the highest persistence rates and those who attended poor high schools have the lowest rates. Multivariate analyses indicate that the advantages in persistence and on-time graduation from four-year colleges enjoyed by graduates of affluent high schools cannot be fully explained by high school college orientation and academic rigor, family background, pre-college academic preparedness or the institutional characteristics. High school college orientation, family background and pre-college academic preparation largely explain why graduates from affluent high schools who first enroll in two-year colleges have higher transfer rates to four-year institutions; however these factors and college characteristics do not explain the lower transfer rates for students from poor high schools. The conclusion discusses the implications of the empirical findings in light of several recent studies that call attention to the policy importance of high schools as a lever to improve persistence and completion rates via better institutional matches. PMID:23459198

  15. REMOTE HIGH SCHOOLS--THE REALITIES.

    ERIC Educational Resources Information Center

    FORD, PAUL; AND OTHERS

    THIS STUDY WAS CONDUCTED AT TWO URBAN HIGH SCHOOLS AND THREE SMALL, REMOTE HIGH SCHOOLS IN THE STATE OF WASHINGTON IN AN EFFORT TO INVESTIGATE STUDENT-TEACHER ACTIVITIES AND RELATIONSHIPS, AND TO EXPLORE, IN DEPTH, ANY EDUCATIONAL ADVANTAGES AND/OR DISADVANTAGES ACCRUING TO THE SMALL HIGH SCHOOL. GENERAL FINDINGS OF THE STUDY INDICATED THAT THERE…

  16. Online High School at Stanford University

    ERIC Educational Resources Information Center

    Ravaglia, Raymond

    2007-01-01

    The Education Program for Gifted Youth (EPGY) Online High School (OHS) is a three-year, diploma granting, online independent high school for gifted students. The mission statement reads as follows: "Through advanced technology, rigorous courses, and the resources of Stanford University, the Online High School affords gifted students everywhere an…

  17. Crazy-Proofing High School Sports

    ERIC Educational Resources Information Center

    Tufte, John E.

    2012-01-01

    "Crazy-Proofing High School Sports" examines the often troubling high school sports phenomenon in two parts. Part one focuses on the problems facing educators, students, and parents as they struggle to make high school sports worthwhile. Few if any strategies for improvement in education are effective without first knowing what the real reasons…

  18. Trenton High School: Attitude Builds Community

    ERIC Educational Resources Information Center

    Principal Leadership, 2013

    2013-01-01

    High schools often are the anchor of their communities. Nowhere is this more so than in rural north-central Missouri where Trenton High School is the community. Over the last 10 years, this 400-student comprehensive high school mirrored the community's economic downturn and experienced a significant increase in students living in poverty--to the…

  19. Teacher Practices in a High Performing, Appalachian Rural High School

    ERIC Educational Resources Information Center

    Estep, Steven A.

    2009-01-01

    The purpose of this exploratory case study was to identify, investigate, and describe factors that contributed to the academic success of Phelps High School, a rural, isolated, Appalachian high school in Pike County Kentucky. The academic index of the school in 2000 was 48% and in a six year period the academic index of the school improved to 94%.…

  20. Case Study: William Charles Akins High School. High Schools That Work

    ERIC Educational Resources Information Center

    Southern Regional Education Board (SREB), 2011

    2011-01-01

    Akins High School is the newest and second largest high school in the Austin Independent School District in Austin, Texas. This report describes how the school has used small learning communities and the "HSTW" framework of Key Practices to improve the school culture, personalize the learning environment, improve student achievement and…

  1. Cheating in Middle School and High School

    ERIC Educational Resources Information Center

    Strom, Paris S.; Strom, Robert D.

    2007-01-01

    There is increasing concern about cheating in the secondary schools. This article describes the prevalence of dishonesty in testing, motivation for student cheating, new forms of deception using technology tools, initiatives to protect security of tests, methods students use to obtain papers without crediting the original source, tools for…

  2. A novel multi-alignment pipeline for high-throughput sequencing data.

    PubMed

    Huang, Shunping; Holt, James; Kao, Chia-Yu; McMillan, Leonard; Wang, Wei

    2014-01-01

    Mapping reads to a reference sequence is a common step when analyzing allele effects in high-throughput sequencing data. The choice of reference is critical because its effect on quantitative sequence analysis is non-negligible. Recent studies suggest aligning to a single standard reference sequence, as is common practice, can lead to an underlying bias depending on the genetic distances of the target sequences from the reference. To avoid this bias, researchers have resorted to using modified reference sequences. Even with this improvement, various limitations and problems remain unsolved, which include reduced mapping ratios, shifts in read mappings and the selection of which variants to include to remove biases. To address these issues, we propose a novel and generic multi-alignment pipeline. Our pipeline integrates the genomic variations from known or suspected founders into separate reference sequences and performs alignments to each one. By mapping reads to multiple reference sequences and merging them afterward, we are able to rescue more reads and diminish the bias caused by using a single common reference. Moreover, the genomic origin of each read is determined and annotated during the merging process, providing a better source of information to assess differential expression than simple allele queries at known variant positions. Using RNA-seq of a diallel cross, we compare our pipeline with the single-reference pipeline and demonstrate our advantages of more aligned reads and a higher percentage of reads with assigned origins. Database URL: http://csbio.unc.edu/CCstatus/index.py?run=Pseudo.

  3. QuickProbs 2: Towards rapid construction of high-quality alignments of large protein families

    PubMed Central

    Gudyś, Adam; Deorowicz, Sebastian

    2017-01-01

    The ever-increasing size of sequence databases caused by the development of high throughput sequencing, poses to multiple alignment algorithms one of the greatest challenges yet. As we show, well-established techniques employed for increasing alignment quality, i.e., refinement and consistency, are ineffective when large protein families are investigated. We present QuickProbs 2, an algorithm for multiple sequence alignment. Based on probabilistic models, equipped with novel column-oriented refinement and selective consistency, it offers outstanding accuracy. When analysing hundreds of sequences, Quick-Probs 2 is noticeably better than ClustalΩ and MAFFT, the previous leaders for processing numerous protein families. In the case of smaller sets, for which consistency-based methods are the best performing, QuickProbs 2 is also superior to the competitors. Due to low computational requirements of selective consistency and utilization of massively parallel architectures, presented algorithm has similar execution times to ClustalΩ, and is orders of magnitude faster than full consistency approaches, like MSAProbs or PicXAA. All these make QuickProbs 2 an excellent tool for aligning families ranging from few, to hundreds of proteins. PMID:28139687

  4. Scalable high-power redox capacitors with aligned nanoforests of crystalline MnO₂ nanorods by high voltage electrophoretic deposition.

    PubMed

    Santhanagopalan, Sunand; Balram, Anirudh; Meng, Dennis Desheng

    2013-03-26

    It is commonly perceived that reduction-oxidation (redox) capacitors have to sacrifice power density to achieve higher energy density than carbon-based electric double layer capacitors. In this work, we report the synergetic advantages of combining the high crystallinity of hydrothermally synthesized α-MnO2 nanorods with alignment for high performance redox capacitors. Such an approach is enabled by high voltage electrophoretic deposition (HVEPD) technology which can obtain vertically aligned nanoforests with great process versatility. The scalable nanomanufacturing process is demonstrated by roll-printing an aligned forest of α-MnO2 nanorods on a large flexible substrate (1 inch by 1 foot). The electrodes show very high power density (340 kW/kg at an energy density of 4.7 Wh/kg) and excellent cyclability (over 92% capacitance retention over 2000 cycles). Pretreatment of the substrate and use of a conductive holding layer have also been shown to significantly reduce the contact resistance between the aligned nanoforests and the substrates. High areal specific capacitances of around 8500 μF/cm(2) have been obtained for each electrode with a two-electrode device configuration. Over 93% capacitance retention was observed when the cycling current densities were increased from 0.25 to 10 mA/cm(2), indicating high rate capabilities of the fabricated electrodes and resulting in the very high attainable power density. The high performance of the electrodes is attributed to the crystallographic structure, 1D morphology, aligned orientation, and low contact resistance.

  5. Regular Soda Policies, School Availability, and High School Student Consumption

    PubMed Central

    Terry-McElrath, Yvonne M.; Chriqui, Jamie F.; O’Malley, Patrick M.; Chaloupka, Frank J.; Johnston, Lloyd D.

    2014-01-01

    Background Beginning in the 2014–2015 school year, all U.S. schools participating in federally reimbursable meal programs are required to implement new nutrition standards for items sold in competitive venues. Multilevel mediation modeling examining direct, mediated, and indirect pathways between policy, availability, and student consumption might provide insight into possible outcomes of implementing aspects of the new standards. Purpose To employ multilevel mediation modeling using state- and school district–level policies mandating school soda bans, school soda availability, and student soda consumption. Methods The 2010–2012 Monitoring the Future surveys obtained nationally representative data on high school student soda consumption; school administrators provided school soda availability data. State laws and district policies were compiled and coded. Analyses conducted in 2014 controlled for state-, school-, and student-level characteristics. Results State–district–school models found that state bans were associated with significantly lower school soda availability (c, p<0.05) but district bans showed no significant associations. No significant direct, mediated, or indirect associations between state policy and student consumption were observed for the overall sample. Among African American high school students, state policy was associated directly with significantly lower school soda availability (a, p<0.01), and—indirectly through lower school availability—with significantly lower soda consumption (a*b, p<0.05). Conclusions These analyses indicate state policy focused on regular soda strongly affected school soda availability, and worked through changes in school availability to decrease soda consumption among African American students, but not the overall population. PMID:25576493

  6. High School Physics Teaching Experience

    NASA Astrophysics Data System (ADS)

    2012-04-01

    We divided our high school physics teaching experience into three groups: first year teaching physics, second or third year teaching physics, and four or more years of experience teaching physics. We did this because everything is new for teachers teaching a course for the first time. The second and third time through the course, teachers learn from past experiences and hone their approaches. By the time a teacher is in the fourth year of teaching a course, he or she is more comfortable with the material and better able to understand the ways in which different approaches work with different topics.

  7. Computer-aided alignment method of optical lens with high accuracy

    NASA Astrophysics Data System (ADS)

    Xing, Song; Hou, Xiao-hua; Zhang, Xue-min; Ji, Bin-dong

    2016-09-01

    With the development of space and aviation industry, the optical systems with high resolution and better imaging quality are required. According to the alignment technical process, the factors of every step which have big influence to the imaging quality are analyzed. It is detected that the micro-stress assembly of the optical unit and the high co-axial precision of the entire optical system are the two important factors which are supposed to determine how well the imaging quality of the optical system is; also the technical methods are discussed to ensure these two factors from the engineering view. The reflective interference testing method to measure the surface figure and the transitive interference testing method to measure the wave aberration of the optical unit are combined to ensure the micro-stress assembly of the optical unit, so it will not bring astigmatism to the whole system imaging quality. Optical alignment machining and precision alignment are combined to ensure the high co-axial precision of the optical system. An optical lens of high accuracy is assembled by using these methods; the final wave aberration of optical lens is 0.022λ.

  8. Improving Advanced High School Physics

    NASA Astrophysics Data System (ADS)

    Spital, Robin David

    2003-04-01

    A National Research Council study committee recently commissioned a "Physics Panel" to evaluate and make recommendations for improving advanced physics education in American high schools [1]. The Physics Panel recommends the creation of a nationally standardized Newtonian Mechanics Unit that would form the foundation of all advanced physics programs. In a one-year program, the Panel recommends that advanced physics students study at most one other major area of physics, so that sufficient time is available to develop the deep conceptual understanding that is the primary goal of advanced study. The Panel emphasizes that final assessments must be improved to focus on depth of understanding, rather than technical problem-solving skill. The Physics Panel strongly endorses the inclusion of meaningful real-world experiences in advanced physics programs, but believes that traditional "cook-book" laboratory exercises are not worth the enormous amount of time and effort spent on them. The Physics Panel believes that the talent and preparation of teachers are the most important ingredients in effective physics instruction; it therefore calls for a concerted effort by all parts of the physics community to remedy the desperate shortage of highly qualified teachers. [1] Jerry P. Gollub and Robin Spital, "Advanced Physics in the High Schools", Physics Today, May 2002.

  9. Fully automated hybrid diode laser assembly using high precision active alignment

    NASA Astrophysics Data System (ADS)

    Böttger, Gunnar; Weber, Daniel; Scholz, Friedemann; Schröder, Henning; Schneider-Ramelow, Martin; Lang, Klaus-Dieter

    2016-03-01

    Fraunhofer IZM, Technische Universität Berlin and eagleyard Photonics present various implementations of current micro-optical assemblies for high quality free space laser beam forming and efficient fiber coupling. The laser modules shown are optimized for fast and automated assembly in small form factor packages via state-of-the-art active alignment machinery, using alignment and joining processes that have been developed and established in various industrial research projects. Operational wavelengths and optical powers ranging from 600 to 1600 nm and from 1 mW to several W respectively are addressed, for application in high-resolution laser spectroscopy, telecom and optical sensors, up to the optical powers needed in industrial and medical laser treatment.

  10. How School Districts Can Support Deeper Learning: The Need for Performance Alignment. Deeper Learning Research Series

    ERIC Educational Resources Information Center

    Honig, Meredith I.; Rainey, Lydia R.

    2015-01-01

    School district leaders nationwide aspire to help their schools become vibrant places for learning--where students have meaningful academic opportunities and develop critical thinking and problem-solving skills. Historically, though, school district central offices have been ill-equipped to support such ambitious goals. A new wave of research…

  11. Aligning Components of Recognition and Response and Response to Intervention to Improve Transition to Primary School

    ERIC Educational Resources Information Center

    Pierce, Corey D.; Bruns, Deborah A.

    2013-01-01

    Children face numerous transitions throughout their school careers. Research has demonstrated that early transitions can positively or negatively impact future school performance. Establishing effective models to ensure carryover of instructional strategies and interventions into early elementary school can increase the likelihood children will…

  12. Consumer Education in Lincoln High School.

    ERIC Educational Resources Information Center

    Consumers Union of United States, Inc., Mount Vernon, NY. Educational Services Div.

    "Consumer Education in Lincoln High School" was prepared by the Consumer Education Committee, faculty members of the school. The document presents a series of teacher-prepared case studies of Lincoln High School's consumer education program and how consumer education has been integrated into the following departments: business education,…

  13. Community Partnerships to Support High School Success

    ERIC Educational Resources Information Center

    Harvard Family Research Project, 2011

    2011-01-01

    Graduation and dropout rates are the center of the conversation about high school reform, with President Obama and the U.S. Department of Education leading the charge to boost high school and college graduation rates among our nation's students in the next ten years. Recognizing the need for a comprehensive approach to keeping teens in school and…

  14. High Five: Building Capacity for School Excellence

    ERIC Educational Resources Information Center

    McCullen, Caroline

    2006-01-01

    In 2004, five North Carolina school districts combined forces with five corporate foundations to leverage their collective wisdom and develop regional strategies for school improvement. The result was the High Five Regional Partnership for High School Excellence, a corporate-public sector effort that had the common goal of improving graduation…

  15. Loris High School: The Sky's the Limit

    ERIC Educational Resources Information Center

    Rourke, James; Hartzman, Marlene

    2009-01-01

    In 2005, Loris (SC) High School was ranked near the bottom of all high schools in South Carolina. The newly appointed principal, Trevor Strawderman, had been the school's assistant principal. He knew that literacy presented the biggest challenge at Loris: 74% of the students in 9th and 10th grade were reading below grade level. Because of the low…

  16. High School Flexibility Enhancement: A Literature Review

    ERIC Educational Resources Information Center

    Alberta Education, 2009

    2009-01-01

    This literature review is intended to help inform the development and implementation of innovative, educationally sound high school redesigns in Alberta. It is provided as a support resource for school administrators involved in Alberta Education's High School Flexibility Enhancement Project. Support is provided in the following ways: (1) a brief…

  17. Bloomfield High School: Diversity Spurs Growth

    ERIC Educational Resources Information Center

    Principal Leadership, 2012

    2012-01-01

    Changing the culture of a large, diverse high school from a place of teaching to a place of learning requires determination and the commitment of the entire school staff. Documented academic growth for all students and reduced achievement gaps over the last five years have demonstrated that Bloomfield (New Jersey) High School has made this…

  18. Teacher Accountability at High Performing Charter Schools

    ERIC Educational Resources Information Center

    Aguirre, Moises G.

    2016-01-01

    This study will examine the teacher accountability and evaluation policies and practices at three high performing charter schools located in San Diego County, California. Charter schools are exempted from many laws, rules, and regulations that apply to traditional school systems. By examining the teacher accountability systems at high performing…

  19. Research: Why Wait till High School?

    ERIC Educational Resources Information Center

    Landreau, Janice

    2011-01-01

    Schools often wait until students are in high school before they require them to do research reports, but even 1st graders can benefit from learning to conduct research and write reports. Such projects are motivational for the students and give them a head start over students who wait till high school to learn these skills.

  20. The Case for Coherent High Schools

    ERIC Educational Resources Information Center

    Hill, Paul T.; Maas, Tricia

    2015-01-01

    High school redesign is one of the most elusive reform challenges to date. This paper explains why personalized high schools are hard to get and keep in a traditional school district, and shows how they can be made much more broadly available through changes in policy and philanthropic investments. Drawing from examples of successful and…

  1. High School Students and "Read Across America"?

    ERIC Educational Resources Information Center

    Fisher, Julieta Dias; Hill, Ann

    2004-01-01

    Although more commonly associated with elementary school rather than high school students, "Read Across America" celebrations can cater to any age group and generate enthusiasm for reading long after the festivities have ended. In this article, the authors, library media specialists at Washington Township High School in Sewell, New Jersey, share …

  2. Clothing polymer fibers with well-aligned and high-aspect ratio carbon nanotubes

    NASA Astrophysics Data System (ADS)

    Sun, Gengzhi; Zheng, Lianxi; An, Jia; Pan, Yongzheng; Zhou, Jinyuan; Zhan, Zhaoyao; Pang, John H. L.; Chua, Chee Kai; Leong, Kah Fai; Li, Lin

    2013-03-01

    It is believed that the crucial step towards preparation of electrical conductive polymer-carbon nanotube (CNT) composites is dispersing CNTs with a high length-to-diameter aspect ratio in a well-aligned manner. However, this process is extremely challenging when dealing with long and entangled CNTs. Here in this study, a new approach is demonstrated to fabricate conductive polymer-CNT composite fibers without involving any dispersion process. Well-aligned CNT films were firstly drawn from CNT arrays, and then directly coated on polycaprolactone fibers to form polymer-CNT composite fibers. The conductivity of these composite fibers can be as high as 285 S m-1 with only 2.5 wt% CNT loading, and reach 1549 S m-1 when CNT loading is 13.4 wt%. As-prepared composite fibers also exhibit 82% retention of conductivity at a strain of 7%, and have improved mechanical properties.It is believed that the crucial step towards preparation of electrical conductive polymer-carbon nanotube (CNT) composites is dispersing CNTs with a high length-to-diameter aspect ratio in a well-aligned manner. However, this process is extremely challenging when dealing with long and entangled CNTs. Here in this study, a new approach is demonstrated to fabricate conductive polymer-CNT composite fibers without involving any dispersion process. Well-aligned CNT films were firstly drawn from CNT arrays, and then directly coated on polycaprolactone fibers to form polymer-CNT composite fibers. The conductivity of these composite fibers can be as high as 285 S m-1 with only 2.5 wt% CNT loading, and reach 1549 S m-1 when CNT loading is 13.4 wt%. As-prepared composite fibers also exhibit 82% retention of conductivity at a strain of 7%, and have improved mechanical properties. Electronic supplementary information (ESI) available. See DOI: 10.1039/c3nr34208e

  3. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    2000-02-01

    Secondary School Feature Articles JCE Classroom Activity: #24. The Write Stuff: Using Paper Chromatography to Separate an Ink Mixture, p 176A Teaching Chemistry in the Midwinter Every year, forecasters around the world provide us with long-range predictions of what the seasons will afford us in the coming year. And each year, the weather provides a few surprises that the forecasters did not predict - such as a record amount of snow or record heat indexes, depending on where you live. Although the weatherman didn't predict it, we still must pull out our snow shovels or sun block and take the necessary steps to adapt to the situation. As teachers, we make predictions of teaching and learning goals that we aspire to achieve during a given year, and like the weather, the year brings surprises that aren't in line with our predictions. With that in mind, I would like to offer JCE as the scholastic snow shovel or sun shield you need to jump-start your class and reach the goals you have set. So find a warm (or cool) place, get comfortable, and spend some time with the February issue of JCE. Articles of General Interest in This Issue For readers living where snow falls, Williams's article on page 148 offers some historical background on the use of calcium chloride as a deicer. A diver that depends for its buoyancy upon gas given off by a chemical reaction is described by Derr, Lewis, and Derr in the article beginning on page 171. In her article appearing on pages 249-250, Wang describes a laboratory exercise that makes the mastery of solution preparation skills fun. The students' skill is tested by using the solutions they make to carry out the Briggs-Rauscher oscillating reaction. For high school class applications I recommend use of 3% hydrogen peroxide, described as an option in the article. A well-organized approach to separating an ink mixture, with some possibly new twists, is laid out in the student- and teacher-friendly format of JCE Classroom Activity: #24, pages

  4. Engineering in High School: Implementing TMMW & TPE.

    ERIC Educational Resources Information Center

    Bordoloi, Kiron C.; Cole, Joseph D.

    1979-01-01

    The success of two engineering and technology-oriented secondary school programs is discussed. Also presented is the Man Made World and the Technology-People-Environment at two suburban high schools. (BB)

  5. Discovering Watson's Crick in High School Chemistry.

    ERIC Educational Resources Information Center

    Whitman, Mark

    1984-01-01

    High school chemistry students begin the school year by reading and studying "The Double Helix" by James B. Watson. Rationale, objectives, and instructional strategies for this assignment are discussed. Sample discussion questions based on the book are included. (JN)

  6. Directly measuring of thermal pulse transfer in one-dimensional highly aligned carbon nanotubes

    PubMed Central

    Zhang, Guang; Liu, Changhong; Fan, Shoushan

    2013-01-01

    Using a simple and precise instrument system, we directly measured the thermo-physical properties of one-dimensional highly aligned carbon nanotubes (CNTs). A kind of CNT-based macroscopic materials named super aligned carbon nanotube (SACNT) buckypapers was measured in our experiment. We defined a new one-dimensional parameter, the “thermal transfer speed” to characterize the thermal damping mechanisms in the SACNT buckypapers. Our results indicated that the SACNT buckypapers with different densities have obviously different thermal transfer speeds. Furthermore, we found that the thermal transfer speed of high-density SACNT buckypapers may have an obvious damping factor along the CNTs aligned direction. The anisotropic thermal diffusivities of SACNT buckypapers could be calculated by the thermal transfer speeds. The thermal diffusivities obviously increase as the buckypaper-density increases. For parallel SACNT buckypapers, the thermal diffusivity could be as high as 562.2 ± 55.4 mm2/s. The thermal conductivities of these SACNT buckypapers were also calculated by the equation k = Cpαρ. PMID:23989589

  7. Using Evidence to Create Next Generation High Schools

    ERIC Educational Resources Information Center

    Office of Planning, Evaluation and Policy Development, US Department of Education, 2016

    2016-01-01

    Next Generation High Schools are schools that redesign the high school experience to make it more engaging and worthwhile for high school students. In order to create such Next Generation High Schools, schools, districts, and States should utilize evidence-based strategies to transform high schools in ways that engage students and help prepare…

  8. High Temperature Ultrasonic Probe and Pulse-Echo Probe Mounting Fixture for Testing and Blind Alignment on Steam Pipes

    NASA Technical Reports Server (NTRS)

    Bar-Cohen, Yoseph (Inventor); Badescu, Mircea (Inventor); Lih, Shyh-Shiuh (Inventor); Sherrit, Stewart (Inventor); Takano, Nobuyuki (Inventor); Ostlund, Patrick N. (Inventor); Lee, Hyeong Jae (Inventor); Bao, Xiaoqi (Inventor)

    2017-01-01

    A high temperature ultrasonic probe and a mounting fixture for attaching and aligning the probe to a steam pipe using blind alignment. The high temperature ultrasonic probe includes a piezoelectric transducer having a high temperature. The probe provides both transmitting and receiving functionality. The mounting fixture allows the high temperature ultrasonic probe to be accurately aligned to the bottom external surface of the steam pipe so that the presence of liquid water in the steam pipe can be monitored. The mounting fixture with a mounted high temperature ultrasonic probe are used to conduct health monitoring of steam pipes and to track the height of condensed water through the wall in real-time.

  9. Setting the Stage for New High Schools: Municipal Leadership in Supporting High School Alternatives

    ERIC Educational Resources Information Center

    Hill, Talmira L.

    2007-01-01

    Mayors and other municipal leaders in cities across the nation are helping expand alternatives for students who struggle in traditional high school settings. Alternatives for high school are new alternative secondary school initiatives that prepare young people to graduate from high school and achieve college and career success through programs…

  10. Alignment validation

    SciTech Connect

    ALICE; ATLAS; CMS; LHCb; Golling, Tobias

    2008-09-06

    The four experiments, ALICE, ATLAS, CMS and LHCb are currently under constructionat CERN. They will study the products of proton-proton collisions at the Large Hadron Collider. All experiments are equipped with sophisticated tracking systems, unprecedented in size and complexity. Full exploitation of both the inner detector andthe muon system requires an accurate alignment of all detector elements. Alignmentinformation is deduced from dedicated hardware alignment systems and the reconstruction of charged particles. However, the system is degenerate which means the data is insufficient to constrain all alignment degrees of freedom, so the techniques are prone to converging on wrong geometries. This deficiency necessitates validation and monitoring of the alignment. An exhaustive discussion of means to validate is subject to this document, including examples and plans from all four LHC experiments, as well as other high energy experiments.

  11. Student Engagement, School Climate, and Future Expectations in High School.

    ERIC Educational Resources Information Center

    Hudley, Cynthia; Daoud, Annette; Polanco, Ted; Wright-Castro, Rosina; Hershberg, Rachel

    Engagement is a potentially useful construct for organizing strategies to support adjustment, achievement and retention in school, particularly among our most vulnerable student populations. Even if high quality schooling is available, high levels of achievement will implicitly demand engagement on the part of students. This initial analysis,…

  12. Schools or Students? Identifying High School Effects on Student Suspensions

    ERIC Educational Resources Information Center

    Baker-Smith, E. Christine

    2015-01-01

    Evidence is clear that discipline in high school is associated with negative outcomes across the life course. Not only are suspensions related to declining academic trajectories during high school in the form of attendance and academic achievement, students suspended once are also more likely to be suspended again and also substantially increase…

  13. Three Buildings: Two Junior High Schools and an Elementary School

    ERIC Educational Resources Information Center

    American School and University, 1973

    1973-01-01

    Describes Thomas Jefferson Junior High School/Community Center, Arlington, Virginia, the first major effort at creating a facility aimed at the total development of the community's intellectual and physical needs. Discusses Stanwood Junior High, the first systems-built school building erected in Pennsylvania; and the Dalhart, Texas, Elementary…

  14. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    2000-06-01

    It Was Nice to See You It was great to meet and talk to so many high school chemistry teachers who attended the High School Program at the ACS National Meeting in San Francisco or attended the NSTA National Convention in Orlando. Thank you to every teacher who visited the JCE Booth at either meeting and to the approximately 100 individuals who attended the JCE workshop early Monday morning at the ACS. At the NSTA meeting, the Mole Day Breakfast was a special occasion that was made very enjoyable by National Mole Day Foundation leaders Art Logan and Maury Oehler and the enthusiasm and camaraderie of the audience. For more about NMDF activities check out the website http://gamstcweb.gisd.k12.mi.us/~nmdf. Bringing Quality Visualization into the Classroom Turn to page 799 of this issue to learn about the release of Chemistry Comes Alive! Volume 4. The Chemistry Comes Alive! series of CD-ROMs are packed with Quicktime movies and still photos depicting chemical reactions, many of which are too hazardous or expensive to carry out in the classroom or laboratory. Many of the demonstrations are accompanied by background information, and they are also correlated with popular chemistry textbooks. An innovation appearing in Volume 4 is an interactive section on reactions in aqueous solution. Among the appealing features of the CCA! series is the ability to incorporate QuickTime movies of these demonstrations into your own presentations. The Reprise of Chemical Principles Revisited I am very pleased that Cary Kilner has agreed to edit the Chemical Principles Revisited feature. Please read his Mission Statement below. If you have an idea for a manuscript that fits this feature, now is the time to take action either by discussing it with Cary or by submitting a manuscript for review. This feature has the potential to be very useful to teachers, but it can reach its potential only through your suggestions and submissions. Let us hear from you soon. Scenes from High School Day at

  15. Highly polarized light emission by isotropic quantum dots integrated with magnetically aligned segmented nanowires

    SciTech Connect

    Uran, Can; Erdem, Talha; Guzelturk, Burak; Perkgöz, Nihan Kosku; Jun, Shinae; Jang, Eunjoo; Demir, Hilmi Volkan

    2014-10-06

    In this work, we demonstrate a proof-of-concept system for generating highly polarized light from colloidal quantum dots (QDs) coupled with magnetically aligned segmented Au/Ni/Au nanowires (NWs). Optical characterizations reveal that the optimized QD-NW coupled structures emit highly polarized light with an s-to p-polarization (s/p) contrast as high as 15:1 corresponding to a degree of polarization of 0.88. These experimental results are supported by the finite-difference time-domain simulations, which demonstrate the interplay between the inter-NW distance and the degree of polarization.

  16. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    2000-01-01

    Ideas and Resources in This Issue This issue contains a broad spectrum of topics of potential interest to high school teachers, including chemical safety, history, demonstrations, laboratory activities, electrochemistry, small group learning, and instructional software. In his report on articles published recently in The Science Teacher, Steve Long includes annotated references from that journal, and also from JCE, that provide timely and practical information (pp 21-22). The chemical significance of several anniversaries that will occur in the year 2000 are discussed in an article by Paul Schatz (pp 11-14). Scientists and inventors mentioned include Dumas, Wöhler, Goodyear, Joliot-Curie, Krebs, Pauli, Kjeldahl, and Haworth. Several discoveries are also discussed, including development of the voltaic pile, the use of chlorine to purify water, and the discovery of element 97, berkelium. This is the fourth consecutive year that Schatz has written an anniversaries article (1-3). Although most readers probably do not plan to be teaching in the years 2097-3000, these articles can make a nice addition to your file of readily available historical information for use now in meeting NSES Content Standard G (4). In contrast to the short historical summaries, an in-depth account of the work of Herman Boerhaave is provided by Trinity School (NY) teacher Damon Diemente. You cannot recall having heard of Boerhaave? Diemente explains in detail how Boerhaave's scientific observations, imperfect though they were, contributed significantly to the understanding of temperature and heat by scientists who followed him. Chemical demonstrations attract the interest of most of us, and Kathy Thorsen discusses several that appeared in Chem 13 News during the past year (pp 18-20). Included are demonstrations relating to LeChâtelier's principle, electronegativity, and the synthesis and reactions of carbon monoxide. Ideas for investigating the hydrophobic nature of Magic Sand are given in JCE

  17. High current density and low turn-on field from aligned Cd(OH)2 nanosheets

    NASA Astrophysics Data System (ADS)

    Bagal, Vivekanand S.; Patil, Girish P.; Deore, Amol B.; Baviskar, Prashant K.; Suryawanshi, Sachin R.; More, Mahendra A.; Chavan, Padmakar G.

    2016-04-01

    High current density of 9.8 mA/cm2 was drawn at an applied field of 4.1 V/μm from aligned Cd(OH)2 nanosheets and low turn-on field of 1.4 V/μm was found for the emission current density of 10 μA/cm2. The aligned Cd(OH)2 nanosheets were synthesized by CBD technique on Cadmium foil. To the best of our knowledge this is the first report on the field emission studies of Cd(OH)2 nanosheets. Simple synthesis route coupled with superior field emission properties indicate the possible use of Cd(OH)2 nanosheets for micro/nanoelectronic devices.

  18. Magnetically aligned graphite electrodes for high-rate performance Li-ion batteries

    NASA Astrophysics Data System (ADS)

    Billaud, Juliette; Bouville, Florian; Magrini, Tommaso; Villevieille, Claire; Studart, André R.

    2016-08-01

    As lithium-ion batteries become ubiquitous, the energy storage market is striving for better performance, longer lifetime and better safety of the devices. This race for performance is often focused on the search for new materials, whereas less effort has been dedicated to the electrode engineering. Enhancing the power density by increasing the amount of active material remains impractical since it impinges the transport of ions across the electrode during the charging and discharging processes. Here, we show that the electrochemical performance of a battery containing a thick (about 200 μm), highly loaded (about 10 mg cm-2) graphite electrode can be remarkably enhanced by fabricating anodes with an out-of-plane aligned architecture using a low external magnetic field. The lower tortuosity resulting from such a simple and scalable magnetic alignment approach leads to a specific charge up to three times higher than that of non-architectured electrodes at a rate of 1C.

  19. Alignment dependent ultrafast electron-nuclear dynamics in molecular high-order harmonic generation

    NASA Astrophysics Data System (ADS)

    Li, Mu-Zi; Jia, Guang-Rui; Bian, Xue-Bin

    2017-02-01

    We investigated the high-order harmonic generation (HHG) process of diatomic molecular ion H2+ in non-Born-Oppenheimer approximations (NBOA). The corresponding three-dimensional time-dependent Schrödinger equation is solved with arbitrary alignment angles. It is found that the nuclear motion can lead to spectral modulation of HHG in both the tunneling and multiphoton ionization regimes. The universal redshifts of the whole spectrum are unique in molecular HHG. The spectral width of HHG increases in NBOA. We calculated possible influences on redshifts of HHG in real experimental conditions and found that redshifts decrease with the increase of alignment angles of the molecules and are sensitive to the initial vibrational states. It can be used to extract the ultrafast electron-nuclear dynamics and image molecular structure. It will be instructive to related experiments.

  20. Diffusion of dilute gas in arrays of randomly distributed, vertically aligned, high-aspect-ratio cylinders.

    PubMed

    Szmyt, Wojciech; Guerra, Carlos; Utke, Ivo

    2017-01-01

    In this work we modelled the diffusive transport of a dilute gas along arrays of randomly distributed, vertically aligned nanocylinders (nanotubes or nanowires) as opposed to gas diffusion in long pores, which is described by the well-known Knudsen theory. Analytical expressions for (i) the gas diffusion coefficient inside such arrays, (ii) the time between collisions of molecules with the nanocylinder walls (mean time of flight), (iii) the surface impingement rate, and (iv) the Knudsen number of such a system were rigidly derived based on a random-walk model of a molecule that undergoes memoryless, diffusive reflections from nanocylinder walls assuming the molecular regime of gas transport. It can be specifically shown that the gas diffusion coefficient inside such arrays is inversely proportional to the areal density of cylinders and their mean diameter. An example calculation of a diffusion coefficient is delivered for a system of titanium isopropoxide molecules diffusing between vertically aligned carbon nanotubes. Our findings are important for the correct modelling and optimisation of gas-based deposition techniques, such as atomic layer deposition or chemical vapour deposition, frequently used for surface functionalisation of high-aspect-ratio nanocylinder arrays in solar cells and energy storage applications. Furthermore, gas sensing devices with high-aspect-ratio nanocylinder arrays and the growth of vertically aligned carbon nanotubes need the fundamental understanding and precise modelling of gas transport to optimise such processes.

  1. Highly strained Esaki tunnel diodes on InP substrate with type-III band alignment

    NASA Astrophysics Data System (ADS)

    Karl, S.; Sprengel, S.; Amann, M.-C.

    2016-12-01

    The first of a kind InP-based Esaki tunnel diodes with type-III (broken gap) band alignment are presented. This type is expected to have the highest tunneling current densities at equal doping concentration and structure geometry, compared to homo-, type-I or type-II junctions. The broken gap alignment is achieved by highly strained n-Ga0.2In0.8As/p-GaAs0.2Sb0.8 junction layers. Samples were fabricated by molecular beam epitaxy, the junction doping was varied between 2 × 1018 cm-3 and 2 × 1019 cm-3. Peak current densities up to 34.0 kA cm-2, for a doping of 2 × 1019 cm-3, are reached. The peak tunneling current shows a low dependence on the doping level for the type-III aligned junction layers. For example, highly strained diodes with a doping concentration of 2 × 1018 cm-3 can reach peak tunnel current densities of 3.6 A cm-2, whereas, with the lattice-matched junction, one order of magnitude higher doping is required.

  2. Diffusion of dilute gas in arrays of randomly distributed, vertically aligned, high-aspect-ratio cylinders

    PubMed Central

    Guerra, Carlos

    2017-01-01

    In this work we modelled the diffusive transport of a dilute gas along arrays of randomly distributed, vertically aligned nanocylinders (nanotubes or nanowires) as opposed to gas diffusion in long pores, which is described by the well-known Knudsen theory. Analytical expressions for (i) the gas diffusion coefficient inside such arrays, (ii) the time between collisions of molecules with the nanocylinder walls (mean time of flight), (iii) the surface impingement rate, and (iv) the Knudsen number of such a system were rigidly derived based on a random-walk model of a molecule that undergoes memoryless, diffusive reflections from nanocylinder walls assuming the molecular regime of gas transport. It can be specifically shown that the gas diffusion coefficient inside such arrays is inversely proportional to the areal density of cylinders and their mean diameter. An example calculation of a diffusion coefficient is delivered for a system of titanium isopropoxide molecules diffusing between vertically aligned carbon nanotubes. Our findings are important for the correct modelling and optimisation of gas-based deposition techniques, such as atomic layer deposition or chemical vapour deposition, frequently used for surface functionalisation of high-aspect-ratio nanocylinder arrays in solar cells and energy storage applications. Furthermore, gas sensing devices with high-aspect-ratio nanocylinder arrays and the growth of vertically aligned carbon nanotubes need the fundamental understanding and precise modelling of gas transport to optimise such processes. PMID:28144565

  3. Switching Schools: Reconsidering the Relationship Between School Mobility and High School Dropout

    PubMed Central

    Gasper, Joseph; DeLuca, Stefanie; Estacion, Angela

    2014-01-01

    Youth who switch schools are more likely to demonstrate a wide array of negative behavioral and educational outcomes, including dropping out of high school. However, whether switching schools actually puts youth at risk for dropout is uncertain, since youth who switch schools are similar to dropouts in their levels of prior school achievement and engagement, which suggests that switching schools may be part of the same long-term developmental process of disengagement that leads to dropping out. Using data from the National Longitudinal Survey of Youth 1997, this study uses propensity score matching to pair youth who switched high schools with similar youth who stayed in the same school. We find that while over half the association between switching schools and dropout is explained by observed characteristics prior to 9th grade, switching schools is still associated with dropout. Moreover, the relationship between switching schools and dropout varies depending on a youth's propensity for switching schools. PMID:25554706

  4. Switching Schools: Reconsidering the Relationship Between School Mobility and High School Dropout.

    PubMed

    Gasper, Joseph; DeLuca, Stefanie; Estacion, Angela

    2012-06-01

    Youth who switch schools are more likely to demonstrate a wide array of negative behavioral and educational outcomes, including dropping out of high school. However, whether switching schools actually puts youth at risk for dropout is uncertain, since youth who switch schools are similar to dropouts in their levels of prior school achievement and engagement, which suggests that switching schools may be part of the same long-term developmental process of disengagement that leads to dropping out. Using data from the National Longitudinal Survey of Youth 1997, this study uses propensity score matching to pair youth who switched high schools with similar youth who stayed in the same school. We find that while over half the association between switching schools and dropout is explained by observed characteristics prior to 9(th) grade, switching schools is still associated with dropout. Moreover, the relationship between switching schools and dropout varies depending on a youth's propensity for switching schools.

  5. Optical test bench for high precision metrology and alignment of zoom sub-assembly components

    NASA Astrophysics Data System (ADS)

    Leprêtre, F.; Levillain, E.; Wattellier, B.; Delage, P.; Brahmi, D.; Gascon, A.

    2013-09-01

    Thales Angénieux (TAGX) designs and manufactures zoom lens assemblies for cinema applications. These objectives are made of mobile lens assemblies. These need to be precisely characterized to detect alignment, polishing or glass index homogeneity errors, which amplitude may range to a few hundreds of nanometers. However these assemblies are highly aberrated with mainly spherical aberration (>30 μm PV). PHASICS and TAGX developed a solution based on the use of a PHASICS SID4HR wave front sensor. This is based on quadri-wave lateral shearing interferometry, a technology known for its high dynamic range. A 100-mm diameter He:Ne source illuminates the lens assembly entrance pupil. The transmitted wave front is then directly measured by the SID4- HR. The measured wave front (WFmeas) is then compared to a simulation from the lens sub-assembly optical design (WFdesign). We obtain a residual wave front error (WFmanufactured), which reveals lens imperfections due to its manufacturing. WFmeas=WFdesign+(WFEradius+WFEglass+WFEpolish)=WF design + WFmanufactured The optical test bench was designed so that this residual wave front is measured with a precision below 100 nm PV. The measurement of fast F-Number lenses (F/2) with aberrations up to 30 μm, with a precision of 100 nm PV was demonstrated. This bench detects mismatches in sub-assemblies before the final integration step in the zoom. Pre-alignment is also performed in order to overpass the mechanical tolerances. This facilitates the completed zoom alignment. In final, productivity gains are expected due to alignment and mounting time savings.

  6. Calibration results using highly aberrated images for aligning the JWST instruments to the telescope

    NASA Astrophysics Data System (ADS)

    Smith, Koby Z.; Acton, D. Scott; Gallagher, Ben B.; Knight, J. Scott; Dean, Bruce H.; Jurling, Alden S.; Zielinski, Thomas P.

    2016-07-01

    The James Webb Space Telescope (JWST) project is an international collaboration led by NASA's Goddard Space Flight Center (GSFC) in Greenbelt, MD. JWST is NASA's flagship observatory that will operate nearly a million miles away from Earth at the L2 Lagrange point. JWST's optical design is a three-mirror anastigmat with four main optical components; 1) the eighteen Primary Mirror Segment Assemblies (PMSA), 2) a single Secondary Mirror Assembly (SMA), 3) an Aft-Optics Subsystem (AOS) consisting of a Tertiary Mirror and Fine Steering Mirror, and 4) an Integrated Science Instrument Module consisting of the various instruments for JWST. JWST's optical system has been designed to accommodate a significant amount of alignment capability and risk with the PMSAs and SMA having rigid body motion available on-orbit just for alignment purposes. However, the Aft-Optics Subsystem (AOS) and Integrated Science Instrument Module (ISIM) are essentially fixed optical subsystems within JWST, and therefore the cryogenic alignment of the AOS to the ISIM is critical to the optical performance and mission success of JWST. In support of this cryogenic alignment of the AOS to ISIM, an array of fiber optic sources, known as the AOS Source Plate Assembly (ASPA), are placed near the intermediate image location of JWST (between the secondary and tertiary mirrors) during thermal vacuum ground-test operations. The AOS produces images of the ASPA fiber optic sources at the JWST focal surface location, where they are captured by the various science instruments. In this manner, the AOS provides an optical yardstick by which the instruments within ISIM can evaluate their relative positions to and the alignment of the AOS to ISIM can be quantified. However, since the ASPA is located at the intermediate image location of the JWST three-mirror anastigmat design, the images of these fiber optic sources produced by the AOS are highly aberrated with approximately 2-3μm RMS wavefront error consisting

  7. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    1999-02-01

    Secondary School Feature Articles * Building the Interest of High School Students for Science-A PACT Ambassador Program To Investigate Soap Manufacturing and Industrial Chemistry, by Matthew Lynch, Nicholas Geary, Karen Hagaman, Ann Munson, and Mark Sabo, p 191. * Promoting Chemistry at the Elementary Level, by Larry L. Louters and Richard D. Huisman, p 196. * Is It Real Gold? by Harold H. Harris, p 198. * The "Big Dog-Puppy Dog" Analogy for Resonance, by Todd P. Silverstein, p 206. * The Fizz Keeper, a Case Study in Chemical Education, Equilibrium, and Kinetics, by Reed A. Howald, p 208. Staying on Top: Curricular Projects, Relativistic Effects, and Standard-State Pressure You may wonder why some articles are identified with the Secondary School Chemistry logo (*) this month even though at first glance they appear to be of greater interest to college faculty.1 The three articles discussed below are representative of three broad categories: (i) the interrelatedness of science teaching and learning, K-16+; (ii) new understandings of chemical phenomena; and (iii) information about the use of SI units. For each article I have highlighted the major point(s) and the reasons it may be of interest to high school teachers. First, the article "The NSF 'Systemic' Projects- A New Tradition" (G. M. Barrow, p 158) is a commentary on changes in post-secondary introductory chemistry courses in which a distinction is drawn between information management and individual understanding. The author is of the opinion that most students expect the former and that the NSF-funded systemic projects "will thrive only if they are consistent with their information-management mission". Three individuals provided responses to the commentary from their perspective. Has a student asked you why mercury is a liquid, or why gold is the most electronegative metal? "Gold Chemistry: The Aurophilic Attraction" by J. Bardají and A. Laguna (p 201) and "Why Gold and Copper Are Colored but Silver Is Not" by

  8. Arioc: high-throughput read alignment with GPU-accelerated exploration of the seed-and-extend search space.

    PubMed

    Wilton, Richard; Budavari, Tamas; Langmead, Ben; Wheelan, Sarah J; Salzberg, Steven L; Szalay, Alexander S

    2015-01-01

    When computing alignments of DNA sequences to a large genome, a key element in achieving high processing throughput is to prioritize locations in the genome where high-scoring mappings might be expected. We formulated this task as a series of list-processing operations that can be efficiently performed on graphics processing unit (GPU) hardware.We followed this approach in implementing a read aligner called Arioc that uses GPU-based parallel sort and reduction techniques to identify high-priority locations where potential alignments may be found. We then carried out a read-by-read comparison of Arioc's reported alignments with the alignments found by several leading read aligners. With simulated reads, Arioc has comparable or better accuracy than the other read aligners we tested. With human sequencing reads, Arioc demonstrates significantly greater throughput than the other aligners we evaluated across a wide range of sensitivity settings. The Arioc software is available at https://github.com/RWilton/Arioc. It is released under a BSD open-source license.

  9. Photo-aligned liquid crystal devices for high-peak-power laser applications

    NASA Astrophysics Data System (ADS)

    Marshall, K. L.; Dorrer, C.; Vargas, M.; Gnolek, A.; Statt, M.; Chen, S.-H.

    2012-10-01

    Liquid crystal (LC) optical elements have proven themselves as robust and cost-effective components for high-peakpowerlaser systems such as the 60-beam, 40-TW OMEGA Nd:glass laser system at the University of Rochester'sLaboratory for Laser Energetics. Although buffed nylon 6/6 alignment layers are the de facto standard for high-peak-power applications, photoalignment coatings based on coumarin materials have demonstrated exceptionally high near-IR laser-damage resistance. Using conventional photolithographic patterning techniques, high-resolution, photoaligned, nematic LC beam-shaper devices with a contrast ratio of 430:1, a pixel size of 10 μm, an interpixel resolution of 1.7 μm, and laser-damage resistance of 30 J/cm2 (1054-nm, 1-ns pulse) have been demonstrated. Recently, we have extended this photoalignment process to other existing and potential high-peak-power LC optical devices that have previously used buffed alignment coatings. In addition to fabricating photoaligned LC wave-plate prototypes that meet all optical and performance specifications of LC devices currently used on OMEGA, novel LC polarization converters with continuously varying radial or azimuthal polarization states have been fabricated using the same high-damage-threshold materials. These polarization converters have applications not only in high-peak-power lasers but also in microscopy, electron acceleration, and machining.

  10. High-Performance Ttransparent and Stretchable All-Solid Supercapacitors Based on Highly Aligned Carbon Nanotube Sheets

    DTIC Science & Technology

    2014-01-09

    the cured piece. A gel containing poly(vinyl alcohol) powder (10 g) and H3PO4 (10 g) in water (100 mL) was used as the solid electrolyte . The gel...High-performance transparent and stretchable all- solid supercapacitors based on highly aligned carbon nanotube sheets Tao Chen1, Huisheng Peng2...stretchable all- solid supercapacitors with a good stability were developed. A transmittance up to 75% at the wavelength of 550 nmwas achieved for a

  11. When and Why Dropouts Leave High School

    ERIC Educational Resources Information Center

    Stearns, Elizabeth; Glennie, Elizabeth J.

    2006-01-01

    Teens may leave school because of academic failure, disciplinary problems, or employment opportunities. In this article, the authors test whether the reasons dropouts leave school differ by grade level and age. We compare dropout rates and reasons across grade levels and ages for all high school students, ethnic groups, and gender groups. Across…

  12. Guidelines for High School Physics Programs

    ERIC Educational Resources Information Center

    American Association of Physics Teachers (NJ1), 2002

    2002-01-01

    The American Association of Physics Teachers (AAPT) developed this document as a resource for high school administrators, parents, and teachers who are interested in developing guidelines for physics curriculum and instruction in their school(s). These guidelines reflect the goals of the AAPT, with an emphasis on instructional strategies and…

  13. DuSable High School Program Flourishes.

    ERIC Educational Resources Information Center

    Graff, Pat

    1995-01-01

    Describes the fall and rise of the Panther Press, the scholastic newspaper of the DuSable High School in Chicago. States that despite being located in the midst of public housing projects, the school's newspaper is thriving where others in similar circumstances have failed. Describes how the school's principal and an advisor revitalized and…

  14. Characterization Data And Cross Matching Of A High Performance Step-And-Repeat Aligner

    NASA Astrophysics Data System (ADS)

    Mayer, Herbert E.; Loebach, Ernst W.

    1982-09-01

    A wafer step-and-repeat alignment system, presented in 1980, is briefly reviewed 1, followed by a discussion emphasizing the aspects of cross-matching to wafer global alignment instruments. Issues relevant for cross-matching (wafer pre-alignment and exposure field fine-alignment) are covered in detail. Basic performance data for resolution, alignment accuracy, and throughput are given and first cross-matching results are reported.

  15. Transforming American High Schools: Possibilities for the Next Phase of High School Reform

    ERIC Educational Resources Information Center

    Kuo, Victor

    2010-01-01

    The next phase of high school reform is ripe with possibilities. Over the last 3 decades, educational research has identified a number of promising and effective high school models. Research demonstrates the benefits of career academies and early college schools. Schools that offer small, personalized environments; comprehensive approaches to…

  16. Turnaround High School Principals: Recruit, Prepare and Empower Leaders of Change. High Schools That Work

    ERIC Educational Resources Information Center

    Schmidt-Davis, Jon; Bottoms, Gene

    2012-01-01

    Recent studies make one reality clear: While multiple factors can cause a low-performing high school to be in a turnaround situation, every high school that makes dramatic academic improvement has strong, effective school leadership. Turning a school around is no work for novices. It takes a skilled, visionary and proactive principal to pull apart…

  17. Teaching Geomagnetism in High School

    NASA Astrophysics Data System (ADS)

    Stern, D. P.

    2001-05-01

    Many high school curricula include a one-year course in Earth Sciences, often in the 9th grade (essentially pre-algebra). That is a good time to teach about geomagnetism. Not only are dipole reversals and sea-floor magnetization central to this subject, but this is a good opportunity to introduce students to magnetism and its connection to electric currents. The story of Oersted and Faraday give a fascinating insight into the uneven path of scientific discovery, the magnetic compass and William Gilbert provide a view of the beginnings of the scientific revolution, and even basic concepts of dynamo theory and its connection to solar physics can be included. A resource including all the suitable material now exists on the world-wide web at http://www-spof.gsfc.nasa.gov/earthmag/demagint.htm (home page). A 1-month unit on geomagnetism will be outlined.

  18. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    2000-12-01

    Mark April 3, 2001, on your calendar now! An outstanding one-day event for chemistry teachers will be held in conjunction with the ACS National Meeting in San Diego. Program Organizer Joe Baron (La Jolla High School) is planning a full day of interesting workshops that will provide you with new ideas and techniques that you can use in your classroom. Full program information will be carried in the March issue of the Journal of Chemical Education and in the Winter issue of the ACS Division of Chemical Education Newsletter. Program information will also be disseminated directly to San Diego area teachers. Joe Baron may be contacted by email at albaron@sdcoe.k12.ca.us.

  19. Optimal Position Estimation for the Automatic Alignment of a High Energy Laser

    SciTech Connect

    Candy, J V; Mcclay, W A; Awwal, A S; Ferguson, S W

    2004-07-20

    The alignment of high energy laser beams for potential fusion experiments demand high precision and accuracy by the underlying positioning algorithms whether it be for actuator control or monitoring the beam line for potential anomalies. This paper discusses the feasibility of employing on-line optimal position estimators in the form of model-based processors to achieve the desired results. Here we discuss the modeling, development, implementation and processing of model-based processors applied to both simulated and actual beam line data.

  20. High performance FORTRAN without templates: An alternative model for distribution and alignment

    NASA Technical Reports Server (NTRS)

    Chapman, Barbara; Mehrotra, Piyush; Zima, Hans

    1993-01-01

    Language extensions of FORTRAN are being developed which permit the user to map data structures to the individual processors of distributed memory machines. These languages allow a programming style in which global data references are used. Current efforts are focussed on designing a common basis for such languages, the result of which is known as High Performance Fortran (HPF). One of the central debates in the HPF effort revolves around the concept of templates, introduced as an abstract index space to which data could be aligned. A model for the mapping of data which provides the functionality of High Performance Fortran distributions without the use of templates is presented.

  1. Demographic Factors Affecting Internet Using Purposes of High School Students

    ERIC Educational Resources Information Center

    Kilic, Abdullah Faruk; Güzeller, Cem Oktay

    2017-01-01

    This study aimed at determining the impact of demographic factors on the Internet usage purposes of high school students. The population of the study consisted of students between 9th and 12th grades from the Anatolian high schools, science high schools, social sciences high schools, sports high schools and fine arts high schools in Turkey. The…

  2. Aligning the NWEA RIT Scale with the Maryland School Assessment (MSA)

    ERIC Educational Resources Information Center

    Bowe, Branin; Cronin, John

    2005-01-01

    Recently NWEA completed a project to connect the scale of the Maryland School Assessment (MSA) with NWEA's RIT scale. One large school system participated in the study, using test information from a group of over 24,000 students enrolled in third, fourth and fifth grade who took both the MSA and NWEA reading tests in the spring of 2005.…

  3. Improving Your Elementary School: Ten Aligned Steps for Administrators, Teams, Teachers, Families, and Students

    ERIC Educational Resources Information Center

    Wilson, Leslie Walker

    2006-01-01

    Each of the chapters in this unique book was written expressly for each major stakeholder group in a school, tailored to their varied needs and experiences. Each chapter contains a set of inter-related practical activities so that each group focuses on the same goals and supports the others. No other book on school improvement includes a chapter…

  4. High speed graphene transistors with a self-aligned nanowire gate

    PubMed Central

    Liao, Lei; Lin, Yung-Chen; Bao, Mingqiang; Cheng, Rui; Bai, Jingwei; Liu, Yuan; Qu, Yongquan; Wang, Kang L.; Huang, Yu; Duan, Xiangfeng

    2010-01-01

    Graphene has attracted considerable interest as a potential new electronic material1–11. With the highest carrier mobility exceeding 200,000 cm2/V·s, graphene is of particular interest for ultra-high speed radio frequency (RF) electronics12–18. However, the conventional dielectric integration and device fabrication processes cannot be readily applied to fabricate high speed graphene transistors because they can often introduce significant defects into the monolayer of carbon lattices and severely degrade the device performance19–21. Here we report a new approach to fabricate high-speed graphene transistors with a self-aligned nanowire gate to enable unprecedented performance. The graphene transistors are fabricated using a Co2Si/Al2O3 core/shell nanowire as the gate, with the source and drain electrodes defined through a self-alignment process and the channel length defined by the nanowire diameter. The physical assembly of nanowire gate preserves the high carrier mobility in graphene, and the self-aligned process ensures that the edges of the source, drain, and gate electrodes are automatically and precisely positioned so that no overlapping or significant gaps exist between these electrodes and thus minimizes access resistance. It therefore enables transistor performance not previously possible. Graphene transistors with channel length down to 140 nm have been fabricated with the highest scaled on-current (3.32 mA μm−1) and transconductance (1.27 mS μm−1) reported to date. Significantly, on-chip microwave measurements demonstrate that the self-aligned devices exhibit a record high intrinsic cutoff frequency (fT) in the range of 100–300 GHz, with the extrinsic fT in the range of a few gigahertz largely limited by parasitic pad capacitance. The reported intrinsic cutoff frequency of the graphene transistors is comparable to that of the very best high electron mobility transistors with similar gate lengths10. It therefore marks an important milestone

  5. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    1999-05-01

    assigned as a take-home activity. JCE Classroom Activity #15, "Liver and Onions: DNA Extraction from Animal and Plant Tissues" (p 400A, March 1999) also integrates chemical and biological concepts. The JCE Software videotape HIV-1 Protease: An Enzyme at Work is another useful resource. It can be used in any classroom where kinetics, catalysis, proteins, or enzymes are discussed. Information about JCE Software products can be found in recent issues of the Journal or by accessing JCE Online (http://jchemed.chem.wisc.edu). Because most high school students complete at least one year of biology before enrolling in chemistry, developing the connections between biology and chemistry can be especially productive. Connections between chemistry and biology often seem to be more real to students than do many of the phenomena we cite as applications. For example, students often are not able to make the connection between the excitation of electrons to produce electromagnetic radiation and anything that is personally relevant. The light given off by sodium or mercury vapor lights provides a common example of relating atomic emission to a useful process, but many students do not seem to find that particularly interesting. The need to make a connection between biology and chemistry becomes especially meaningful to students when the chemical change occurs within the human body. As an example, the interaction of emitted electromagnetic radiation with human cells to cause well-tanned skin seems more relevant to a greater number of students than the color of lights in a parking lot. This issue contains an article that describes a useful application of light to kill cancer cells through use of photosensitizers (p 592). The process of photodynamic therapy (PDT) provides another example that could help students make a connection between the emission of electromagnetic radiation and the challenge of killing cancer cells without harming healthy cells. Certainly this example is not a magic

  6. School-Related Factors Affecting High School Seniors' Methamphetamine Use

    ERIC Educational Resources Information Center

    Stanley, Jarrod M.; Lo, Celia C.

    2009-01-01

    Data from the 2005 Monitoring the Future survey were used to examine relationships between school-related factors and high school seniors' lifetime methamphetamine use. The study applied logistic regression techniques to evaluate effects of social bonding variables and social learning variables on likelihood of lifetime methamphetamine use. The…

  7. Hershey Montessori Farm School: Place-Based High School Biology.

    ERIC Educational Resources Information Center

    Venaleck, Judy; McDonald, Pete

    2001-01-01

    Describes how the Hershey Montessori Farm School in Huntsburg, Ohio, developed an advanced biology course, which begins with an experience-based, task-oriented approach within different biomes of the surrounding environs while incorporating high school content and scientific method. Concludes that integrating place-based and contextual inquiries…

  8. Coming of Age: Transitioning from Middle School to High School

    ERIC Educational Resources Information Center

    Ciminero, Sandra Elser

    2012-01-01

    To celebrate a milestone in eighth-graders' lives--leaving middle school and moving on to high school--the author assigns them the "Coming of Age" project, which examines the big idea of identity and promotes the move from self-reflection to self-expression. The project also includes writing components that correspond to each of the nine…

  9. Reasons for School Dropout in Vocational High School

    ERIC Educational Resources Information Center

    Polat, Selda

    2014-01-01

    This study aims to discuss the causative factors that lead to vocational high schools dropout by referring to the opinions of the students who did leave the school. A qualitative phenomenological research method has been designed and adopted. The study group consisted of 19 children and young adults (15-24 years old) who continue their education…

  10. Implementing Effective Schools Research: The Audit Process High School Observations.

    ERIC Educational Resources Information Center

    Brubaker, Hal; Partin, Ron

    During May of 1985, an external audit team was engaged by the Lorain (Ohio) City Schools to assess implementation of the seven correlates of an effective school. The correlates, developed by the Ohio State Department of Education, included: (1) a sense of mission; (2) strong building leadership; (3) high expectations for all students and staff;…

  11. SCHOOL AIR CONDITIONING/CASE STUDY, MCPHERSON HIGH SCHOOL.

    ERIC Educational Resources Information Center

    OSTENBERG, JOE W.

    THE STANFORD UNIVERSITY SCHOOL PLANNING LABORATORIES CONDUCTED AN EDUCATIONAL SURVEY OF THE EDUCATIONAL NEEDS OF THE MCPHERSON CITY SCHOOLS BY STUDYING THE EXISTING CONDITIONS, LOCAL ECONOMIES, AND POTENTIAL POPULATION GROWTH. IT WAS RECOMMENDED THAT A NEW SENIOR HIGH BE BUILT TO HOUSE 700-750 STUDENTS, THE ANTICIPATED ENROLLMENT 10 YEARS AFTER…

  12. The Making of a High-Tech High School.

    ERIC Educational Resources Information Center

    Lozada, Marlene

    1997-01-01

    An old elementary school building evolved into New Technology High School in Napa, California. With help from corporate sponsors, students can now e-mail assignments, and graduation requirements include multimedia design and production classes. (JOW)

  13. The California Middle College High School Program.

    ERIC Educational Resources Information Center

    California Community Colleges, Sacramento. Office of the Chancellor.

    In 1988, the California legislature provided funding for development of two Middle College High School (MCHS) projects, one at Contra Costa College (CCC), and another one at Los Angeles Southwest College (LASC). The MCHS is a high school program on a college campus designed to meet the needs of high risk urban youth with college potential. Through…

  14. Proven Strategies for Personalizing America's High Schools

    ERIC Educational Resources Information Center

    McBrady, Shannon; Williamson, Ronald

    2010-01-01

    America's high schools face the challenge of improving student learning in an ever-changing global world (Marx, 2006). Fueling the need for reform is the urgency of graduating more highly skilled citizens and the demands from federal and state government. No Child Left Behind (NCLB) and state legislation make today's high schools more accountable…

  15. Special Education in High School Redesign

    ERIC Educational Resources Information Center

    National High School Center, 2011

    2011-01-01

    This annotated bibliography, co-authored by the National High School Center and the National Secondary Transition Technical Assistance Center, identifies articles that address high school redesign as it relates to students with disabilities and special education's role in such initiatives. The articles are organized around the National High School…

  16. What It Takes to Complete High School: The Shifting Terrain of Course and Diploma Requirements

    ERIC Educational Resources Information Center

    Hoffman, Nancy

    2013-01-01

    In recent months, several states have altered their high school course requirements in various ways, from creating endorsements within a single diploma to creating new diplomas. These states appear to be making changes for a variety of reasons: to elevate career and technical education; to emphasize STEM fields; to improve the alignment with…

  17. Mixed Signals in California: A Mismatch between High Schools and Community Colleges. Policy Alert

    ERIC Educational Resources Information Center

    National Center for Public Policy and Higher Education, 2008

    2008-01-01

    "Policy Alert" is a publication series that summarizes important policy findings affecting the future of higher education. This issue is based on an earlier study, "Investigating the Alignment of High School and Community College Assessments in California". The "Policy Alert" summarizes the findings of the study, and…

  18. High School Graduates' Perceptions of Senior Project and College and Work Readiness: A Mixed Methods Study

    ERIC Educational Resources Information Center

    Pennacchia, Donna

    2010-01-01

    State testing or end-of-course exams are recommended to determine if high school graduates are ready to enter college or the workforce because these assessments are aligned to content area expectations and standards that are measurable within each state as well as from state to state (Achieve, 2006). However, such assessments do not measure all…

  19. A Call to Action: Transforming High School for All Youth. National High School Alliance

    ERIC Educational Resources Information Center

    Institute for Educational Leadership (NJ1), 2005

    2005-01-01

    This paper identifies six core principles and recommends strategies that will foster high academic achievement, close the achievement gap, and promote civic and personal growth among all high-school-age youth in the high schools and communities. At the center of the framework is the Alliance's belief that the purpose of high school is to ensure…

  20. Shifting Attendance Trajectories from Middle to High School: Influences of School Transitions and Changing School Contexts

    PubMed Central

    Benner, Aprile D.; Wang, Yijie

    2014-01-01

    In the current study, we examine patterns of school attendance across middle and high school with a diverse sample of 8,908 students (48% female; 54% Latino, 31% White, 13% African American, 2% Asian American). Attendance declined from middle through high school, but this overall pattern masked important variations. In total, 44% of students maintained their attendance trajectories from middle to high school (11% stable high, 19% high-decreasing, 10% mid-decreasing, 4% low-decreasing), and shifting attendance trajectories often signaled greater school disengagement (38% shifted to poorer attendance trajectories, 18% experienced improved attendance trajectories). Transition experiences, school structural characteristics, and the divergence between students’ middle and high schools provided insights into which students recovered, becoming more engaged in high school versus those who became more disconnected. Implications for identifying and intervening with disengaged youth are discussed. PMID:24364827

  1. High Schools in the United States. Quick Stats Fact Sheet

    ERIC Educational Resources Information Center

    National High School Center, 2009

    2009-01-01

    This fact sheet highlights the statistics of the current status of high schools in the United States. It provides information on the following variables: (1) demography of high school students; (2) students with disabilities; (3) high school student achievement; (4) the schools; (5) school funding; (6) high school graduation rate; (7) high school…

  2. Comparing School-Based Environment of High- and Low-Performing Inner City Schools.

    ERIC Educational Resources Information Center

    Huang, Shwu-yong L.; And Others

    The perceptions of school climates at high- and low-performing schools were studied in 11 elementary schools from a large, multicultural urban school district selected for their high or low achievement. The sample consisted of 151 teachers from the 5 high-performing schools and 146 from the low-performing schools. School performance was determined…

  3. High School Classmates and College Success.

    PubMed

    Fletcher, Jason M; Tienda, Marta

    2009-10-01

    This paper uses administrative data from the University of Texas-Austin to examine whether the number of same high school classmates at college entry influences college achievement, measured by grade point average (GPA) and persistence. For each freshman cohort from 1993 through 2003 we calculate the number and ethnic makeup of college freshmen from each Texas high school. Empirical specifications include high school fixed effects to control for unobservable differences across schools that influence both college enrollment behavior and academic performance. Using an instrumental variables/fixed effects estimation strategy, we also evaluate whether "marginal" increases in the number of high school classmates influence college grades. Results show that students who arrive on campus with a larger number of high school classmates outperform their counterparts from smaller high school cohorts. Average effects of larger high school cohorts on college achievement are small, but a marginal increase in the number of same-race classmates raises GPA by 0.1 point. Results provide suggestive evidence that minority academic benefits from larger high school cohorts are greater for minority compared with white students.

  4. High School Classmates and College Success

    PubMed Central

    Fletcher, Jason M.; Tienda, Marta

    2012-01-01

    This paper uses administrative data from the University of Texas-Austin to examine whether the number of same high school classmates at college entry influences college achievement, measured by grade point average (GPA) and persistence. For each freshman cohort from 1993 through 2003 we calculate the number and ethnic makeup of college freshmen from each Texas high school. Empirical specifications include high school fixed effects to control for unobservable differences across schools that influence both college enrollment behavior and academic performance. Using an instrumental variables/fixed effects estimation strategy, we also evaluate whether “marginal” increases in the number of high school classmates influence college grades. Results show that students who arrive on campus with a larger number of high school classmates outperform their counterparts from smaller high school cohorts. Average effects of larger high school cohorts on college achievement are small, but a marginal increase in the number of same-race classmates raises GPA by 0.1 point. Results provide suggestive evidence that minority academic benefits from larger high school cohorts are greater for minority compared with white students. PMID:23172979

  5. Alignment of high-throughput sequencing data inside in-memory databases.

    PubMed

    Firnkorn, Daniel; Knaup-Gregori, Petra; Lorenzo Bermejo, Justo; Ganzinger, Matthias

    2014-01-01

    In times of high-throughput DNA sequencing techniques, performance-capable analysis of DNA sequences is of high importance. Computer supported DNA analysis is still an intensive time-consuming task. In this paper we explore the potential of a new In-Memory database technology by using SAP's High Performance Analytic Appliance (HANA). We focus on read alignment as one of the first steps in DNA sequence analysis. In particular, we examined the widely used Burrows-Wheeler Aligner (BWA) and implemented stored procedures in both, HANA and the free database system MySQL, to compare execution time and memory management. To ensure that the results are comparable, MySQL has been running in memory as well, utilizing its integrated memory engine for database table creation. We implemented stored procedures, containing exact and inexact searching of DNA reads within the reference genome GRCh37. Due to technical restrictions in SAP HANA concerning recursion, the inexact matching problem could not be implemented on this platform. Hence, performance analysis between HANA and MySQL was made by comparing the execution time of the exact search procedures. Here, HANA was approximately 27 times faster than MySQL which means, that there is a high potential within the new In-Memory concepts, leading to further developments of DNA analysis procedures in the future.

  6. Highly ordered and highly aligned two-dimensional binary superlattice of a SWNT/cylindrical-micellar system.

    PubMed

    Lim, Sung-Hwan; Jang, Hyung-Sik; Ha, Jae-Min; Kim, Tae-Hwan; Kwasniewski, Pawel; Narayanan, Theyencheri; Jin, Kyeong Sik; Choi, Sung-Min

    2014-11-10

    We report a highly ordered intercalated hexagonal binary superlattice of hydrophilically functionalized single-walled carbon nanotubes (p-SWNTs) and surfactant (C12 E5 ) cylindrical micelles. When p-SWNTs (with a diameter slightly larger than that of the C12 E5 cylinders) were added to the hexagonally packed C12 E5 cylindrical-micellar system, p-SWNTs positioned themselves in such a way that the free-volume entropies for both p-SWNTs and C12 E5 cylinders were maximized, thus resulting in the intercalated hexagonal binary superlattice. In this binary superlattice, a hexagonal array of p-SWNTs is embedded in a honeycomb lattice of C12 E5 cylinders. The intercalated hexagonal binary superlattice can be highly aligned in one direction by an oscillatory shear field and remains aligned after the shear is removed.

  7. Macroporous Polymers with Aligned Microporous Walls from Pickering High Internal Phase Emulsions.

    PubMed

    Zhu, Yun; Zhang, Ranran; Zhang, Shengmiao; Chu, Yeqian; Chen, Jianding

    2016-06-21

    A novel class of macroporous polymers, open macroporous polymers with aligned microporous void walls, were prepared by combining particle-stabilized high internal phase emulsion (Pickering HIPE) and unidirectional freezing technique. These Pickering HIPEs were prepared by utilizing poly(urethane urea)/(vinyl ester resin) nanoparticles as the sole stabilizer, and this nanoparticles also acted as building blocks for the resulting macroporous polymers. Moreover, the morphology and compression modulus of the resulting porous materials could be tuned easily. This means now Pickering-HIPE templated open-cell foams can be prepared, and this route was normally achieved with surfactant and/or chemical reaction involved.

  8. High friction of a vertically aligned carbon-nanotube film in microtribology

    NASA Astrophysics Data System (ADS)

    Kinoshita, Hiroshi; Kume, Ippei; Tagawa, Masahito; Ohmae, Nobuo

    2004-10-01

    The frictional behavior of a vertically aligned carbon-nanotube (VACNT) film against gold tips was studied in air. In these experiments, the film was 6 μm thick, the tip radii 4.5-30 μm, the applied forces smaller than 5 μN, and speeds were 0.15-24 μm/s. In spite of the null adhesion force to the gold tip, extremely high friction coefficients of 1.0-2.2 were found for the VACNT film. No dependence of friction on speed or tip radius was observed.

  9. Can the high latitude ionosphere support large field-aligned ion drifts?

    NASA Technical Reports Server (NTRS)

    Sica, R. J.; Schunk, R. W.; Rasmussen, C. E.

    1988-01-01

    A three-dimensional time-dependent model of the ionosphere is used to examine recent results on vertical drift velocities and electron densities in the high latitude ionosphere. Upper limits for the downward ion velocity were found to be smaller than those obtained from previous measurements. The downward force in the model was arbitrarily increased to try to account for the narrow electron density profiles. It is noted that if the common volume measurement is made in a region of O(+) precipitation then the line profile would not be Doppler shifted when viewed off-zenith, and small field-aligned velocities and narrow profile widths would result.

  10. Big School, Small School: (Re)Testing Assumptions about High School Size, School Engagement and Mathematics Achievement

    ERIC Educational Resources Information Center

    Weiss, Christopher C.; Carolan, Brian V.; Baker-Smith, E. Christine

    2010-01-01

    In an effort to increase both adolescents' engagement with school and academic achievement, school districts across the United States have created small high schools. However, despite the widespread adoption of size reduction reforms, relatively little is known about the relationship between size, engagement and outcomes in high school. In…

  11. Consumer Competency Means High School Diploma in Omaha School

    ERIC Educational Resources Information Center

    Carlock, LaNeta L.

    1977-01-01

    Westside High School in Omaha, Nebraska, developed a series of minimum competencies in seven areas as standards for their graduates. One of the seven areas, consumerism, covers money management, credit, insurance, taxes, buying decisions, and consumer protection. (BM)

  12. School of the Month: Northgate High School, Walnut Creek, California.

    ERIC Educational Resources Information Center

    Dudley, Art

    1983-01-01

    Describes solutions to burgeoning student interest in computers instituted at Northgate High School, including a computer club and independent study in computers. Purpose, membership, scheduling, meetings and activities, courseware, worksheets, and quizzes are discussed. (EJS)

  13. Wade Hampton High School: Leading Like Generals

    ERIC Educational Resources Information Center

    Principal Leadership, 2012

    2012-01-01

    This article features Wade Hampton High School in Greenville County, South Carolina. Named for Wade Hampton III--a Civil War hero, a US senator, and a governor--Wade Hampton High School celebrated its 50th anniversary in 2010 in a beautiful, modern, state-of-the-art facility built on the original school site in 2007. Although most of the 1,600…

  14. Enhanced electrical properties of vertically aligned carbon nanotube-epoxy nanocomposites with high packing density

    PubMed Central

    2012-01-01

    During their synthesis, multi-walled carbon nanotubes can be aligned and impregnated in a polymer matrix to form an electrically conductive and flexible nanocomposite with high backing density. The material exhibits the highest reported electrical conductivity of CNT-epoxy composites (350 S/m). Here, we show how conductive atomic force microscopy can be used to study the electrical transport mechanism in order to explain the enhanced electrical properties of the composite. The high spatial resolution and versatility of the technique allows us to further decouple the two main contributions to the electrical transport: (1) the intrinsic resistance of the tube and (2) the tunneling resistance due to nanoscale gaps occurring between the epoxy-coated tubes along the composite. The results show that the material behaves as a conductive polymer, and the electrical transport is governed by electron tunneling at interconnecting CNT-polymer junctions. We also point out the theoretical formulation of the nanoscale electrical transport between the AFM tip and the sample in order to derive both the composite conductivity and the CNT intrinsic properties. The enhanced electrical properties of the composite are attributed to high degree of alignment, the CNT purity, and the large tube diameter which lead to low junction resistance. By controlling the tube diameter and using other polymers, the nanocomposite electrical conductivity can be improved. PMID:23158381

  15. Shaw High School A Case Study in Rural High School Improvement

    ERIC Educational Resources Information Center

    Williams, Doris Terry

    2004-01-01

    Shaw High School is one of two schools making up the Shaw School District. The school is located in an old and once majestic building whose large concrete pillars still stand at the entrance. A small white house across the street holds the district administrative office. Several buildings, detached from the main building, house the cafeteria,…

  16. 4 Key Findings for High Schools from "Looking Forward to High School and College"

    ERIC Educational Resources Information Center

    Allensworth, Elaine M.; Gwynne, Julia A.; Moore, Paul; de La Torre, Marisa

    2014-01-01

    The transition from eighth grade to high school results in a substantial drop in course performance for many students. These declines in performance lead students to fall off-track for obtaining high school and college degrees. By using data on students' middle grade performance, high school staff can set goals for their students to help them meet…

  17. Pedagogical Stances of High School ESL Teachers: "Huelgas" in High School ESL Classrooms

    ERIC Educational Resources Information Center

    del Carmen Salazar, Maria

    2010-01-01

    This article presents a qualitative case study of the pedagogical stances of high school English as a Second Language (ESL) teachers, and the subsequent responses of resistance or conformity by their English Language Learners (ELLs). The participants include three high school ESL teachers and 60 high school ESL students of Mexican origin. Findings…

  18. Junior High Publications: Junior High School Staff Members Master Same Desktop Publishing as High School Counterparts.

    ERIC Educational Resources Information Center

    Pyle, Betty; Cangelosi, Sandy

    1988-01-01

    Argues that middle and junior high schools can produce professional looking student publications by using desktop publishing. Presents three newspaper pages designed with the Apple Macintosh, using "Pagemaker,""Cricket Draw," and "Microsoft Word" software. (MM)

  19. Linear diffraction grating interferometer with high alignment tolerance and high accuracy

    SciTech Connect

    Cheng Fang; Fan, Kuang-Chao

    2011-08-01

    We present an innovative structure of a linear diffraction grating interferometer as a long stroke and nanometer resolution displacement sensor for any linear stage. The principle of this diffractive interferometer is based on the phase information encoded by the {+-}1st order beams diffracted by a holographic grating. Properly interfering these two beams leads to modulation similar to a Doppler frequency shift that can be translated to displacement measurements via phase decoding. A self-compensation structure is developed to improve the alignment tolerance. LightTool analysis shows that this new structure is completely immune to alignment errors of offset, standoff, yaw, and roll. The tolerance of the pitch is also acceptable for most installation conditions. In order to compact the structure and improve the signal quality, a new optical bonding technology by mechanical fixture is presented so that the miniature optics can be permanently bonded together without an air gap in between. For the output waveform signals, a software module is developed for fast real-time pulse counting and phase subdivision. A laser interferometer HP5529A is employed to test the repeatability of the whole system. Experimental data show that within 15 mm travel length, the repeatability is within 15 nm.

  20. Thomas Jefferson versus Wellesley High School.

    ERIC Educational Resources Information Center

    Loss, Richard

    1983-01-01

    One reason for the concern with high schools is that their performance limits, sometimes severely, what the colleges and universities can accomplish. Thomas Jefferson's views of education are used as criteria to judge the quality of liberal education the author received from Wellesley (Massachusetts) High School. (RM)

  1. Transitions from High School to College

    ERIC Educational Resources Information Center

    Venezia, Andrea; Jaeger, Laura

    2013-01-01

    The vast majority of high school students aspire to some kind of postsecondary education, yet far too many of them enter college without the basic content knowledge, skills, or habits of mind they need to succeed. Andrea Venezia and Laura Jaeger look at the state of college readiness among high school students, the effectiveness of programs in…

  2. Gifted Dropouts: Life after High School

    ERIC Educational Resources Information Center

    Shaw, Shana M.; Tallent-Runnels, Mary K.

    2007-01-01

    To determine if the adult lives of intellectually talented dropouts and high school graduates share commonalities, or if giftedness can help overcome the obstacles associated with not having a high school diploma, the authors looked at significant categories such as the attainment of education, employment, and certain aspects of their private…

  3. Trust, Behavior, and High School Outcomes

    ERIC Educational Resources Information Center

    Romero, Lisa S.

    2015-01-01

    Purpose: The purpose of this paper is to contribute to the literature on student trust and to examine the relationship between student trust, behavior, and academic outcomes in high school. It asks, first, does trust have a positive effect on high school outcomes? Second, does trust influence student behavior, exerting an indirect effect on…

  4. Factors Influencing High School Students' Career Aspirations

    ERIC Educational Resources Information Center

    Tang, Mei; Pan, Wei; Newmeyer, Mark D.

    2008-01-01

    This article explores the factors influencing high school students' career aspirations with a study analyzing 141 high school students. The Social Cognitive Career Development Model was utilized to examine the interactive relationships among learning experiences, career self-efficacy, outcome expectations, career interests, and career choices. The…

  5. Midcentury Modern High Schools: Rebooting the Architecture

    ERIC Educational Resources Information Center

    Havens, Kevin

    2010-01-01

    A high school is more than a building; it's a repository of memories for many community members. High schools built at the turn of the century are not only cultural and civic landmarks, they are also often architectural treasures. When these facilities become outdated, a renovation that preserves the building's aesthetics and character is usually…

  6. When a High School Goes to College

    ERIC Educational Resources Information Center

    Koszoru, Jane

    2005-01-01

    A successful dual-enrollment program that allows high school juniors and senior to experience the rigor of college classes while maintaining a small high school community on a community college campus is described. A significant percentage of students have benefited from the program by helping to develop the responsibility and knowledge necessary…

  7. Anger Assessment in Rural High School Students

    ERIC Educational Resources Information Center

    Lamb, Jacqueline M.; Puskar, Kathryn R.; Sereika, Susan; Patterson, Kathy; Kaufmann, Judith A.

    2003-01-01

    Anger and aggression in school children are a major concern in American society today. Students with high anger levels and poor cognitive processing skills are at risk for poor relationships, underachievement in school, and health problems. This article describes characteristics of children who are at risk for high anger levels and aggression as…

  8. Improving Productivity in the American High School.

    ERIC Educational Resources Information Center

    Cawelti, Gordon

    1982-01-01

    Claims that, to receive government support, education must demonstrate its contribution to productivity in private enterprise. Suggests five indicators of productivity in high schools and discusses how use of seven productivity-raising interventions common in business might affect high school productivity. (PGD)

  9. Defining High School Hazing: Control through Clarity

    ERIC Educational Resources Information Center

    Tokar, Krzysztof; Stewart, Craig

    2010-01-01

    The purpose of this study was to investigate the extent of hazing that had existed in former high school athletes who were enrolled in introduction to coaching classes in a Northern Rocky Mountain state. A nationally accepted survey was given to 189 college students of whom the majority had participated in high school sports. Results were…

  10. Sociology in U.S. High Schools

    ERIC Educational Resources Information Center

    DeCesare, Michael

    2008-01-01

    In the interest of continuing the push toward understanding the status of sociology in high schools, this research note reports some results from the first national study of high school sociology to be carried out in more than 25 years. It is also only the second national study to ever be conducted. Specifically, the author examines the prevalence…

  11. Vandalism in High Schools: An Exploratory Discussion.

    ERIC Educational Resources Information Center

    Ducey, Michael H.

    One of 52 theoretical papers on school crime and its relation to poverty, this chapter proposes that many forms of youthful misbehavior (particularly vandalism in high schools) are rooted in the normal dynamics of culture among youth. Typologies are used for understanding the social organization of the peer group world and the issue of high school…

  12. High School Redesign Gets Presidential Lift

    ERIC Educational Resources Information Center

    Adams, Caralee J.

    2013-01-01

    President Barack Obama applauded high school redesign efforts in his State of the Union address and encouraged districts to look to successful models for inspiration. Last week, he followed up with a request in his fiscal 2014 budget proposal for a new, $300 million competitive-grant program. Recognition is widespread that high schools need to…

  13. The High School Experience in Massachusetts.

    ERIC Educational Resources Information Center

    Massachusetts State Dept. of Education, Boston. Bureau of Research and Assessment.

    This examination of high schools in Massachusetts raises questions about the meaning of the high school diploma and the role, if any, of state policymakers in influencing its meaning. The study shows: (1) students with different characteristics (e.g., male, female, white, minority) and from different kinds of communities and with different…

  14. High School Students' Metaphorical Perceptions of Environment

    ERIC Educational Resources Information Center

    Çimen, Osman

    2014-01-01

    This study examines high school students' metaphorical perceptions in relation to the concept of environment. The study employs the phenomenological research design. The participants were 112 students studying at two different high schools in Ankara. As the data gathering tool, a survey form developed by the researcher was used in the study. The…

  15. High School Socioeconomic Segregation and Student Attainment

    ERIC Educational Resources Information Center

    Palardy, Gregory J.

    2013-01-01

    Using data from the Education Longitudinal Study of 2002, this study examines the association between high school socioeconomic segregation and student attainment outcomes and the mechanisms that mediate those relationships. The results show that socioeconomic segregation has a strong association with high school graduation and college enrollment.…

  16. Parallel Processing at the High School Level.

    ERIC Educational Resources Information Center

    Sheary, Kathryn Anne

    This study investigated the ability of high school students to cognitively understand and implement parallel processing. Data indicates that most parallel processing is being taught at the university level. Instructional modules on C, Linux, and the parallel processing language, P4, were designed to show that high school students are highly…

  17. A SUCCESSFUL HIGH SCHOOL DEVELOPMENTAL READING PROGRAM.

    ERIC Educational Resources Information Center

    BERKEY, SALLY C.

    A READING AND STUDY SKILLS PROGRAM INITIATED IN SEPTEMBER, 1959, IN THE CENTINELA VALLEY UNION HIGH SCHOOL DISTRICT IN SOUTHWEST LOS ANGELES IS DESCRIBED. THE DISTRICT IS COMPOSED OF FOUR HIGH SCHOOLS WITH A TOTAL ENROLLMENT OF APPROXIMATELY 6,000 STUDENTS. PARTICIPATION IN THE PROGRAM IS REQUIRED AND IS CONCENTRATED IN THE FRESHMAN ENGLISH…

  18. National Standards for High School Psychology Curricula

    ERIC Educational Resources Information Center

    American Psychologist, 2013

    2013-01-01

    The "National Standards for High School Psychology Curricula" attempts to represent current knowledge in the field of psychology in developmentally appropriate ways. Psychology is a popular high school course, one that can introduce students to scientific ideas and engage students in the learning process. However, it is difficult for even the best…

  19. Distributed Instructional Leadership in High Schools

    ERIC Educational Resources Information Center

    Halverson, Richard; Clifford, Matthew

    2013-01-01

    This article explores the idea of distributed instructional leadership as a way to understand instructional leadership practice in comprehensive high schools. Our argument is that distributed leadership analyses allow researchers to uncover and explain how instructional improvement in high schools occurs through the efforts of multiple individuals…

  20. Teaching the Classics in High School.

    ERIC Educational Resources Information Center

    Shelley, Anne Crout

    1998-01-01

    Discusses why the classics can be difficult to teach in high schools. Offers suggestions for making difficult literature more approachable for high school students by scaffolding students' engagement with classic texts; building background knowledge; developing vocabulary; facilitating the reading of the text; and through enrichment an extension.…

  1. The Classification of Romanian High-Schools

    ERIC Educational Resources Information Center

    Ivan, Ion; Milodin, Daniel; Naie, Lucian

    2006-01-01

    The article tries to tackle the issue of high-schools classification from one city, district or from Romania. The classification criteria are presented. The National Database of Education is also presented and the application of criteria is illustrated. An algorithm for high-school multi-rang classification is proposed in order to build classes of…

  2. Research on High School Economic Education: Discussion.

    ERIC Educational Resources Information Center

    Baumol, William J.

    1990-01-01

    Responds to William Becker, William Green, and Sherwin Rosen's article reviewing research literature on the teaching and learning of high school economics. Asks for greater explication of themes only introduced in their review, for example: sex and race differences in test performance and the role of computers in teaching high school economics.…

  3. HIGH SCHOOL STUDENTS WHO LATER BECAME SCHIZOPHRENIC.

    ERIC Educational Resources Information Center

    BOWER, ELI M.; AND OTHERS

    THE STUDY IDENTIFIED A GROUP OF 44 INSTITUTIONALIZED MALE SCHIZOPHRENIC PATIENTS AGED 19 TO 26 AND SURVEYED DESCRIPTIONS OF THEIR HIGH SCHOOL BEHAVIOR FOR PREDICTIVE SYMPTOMS. INTERVIEWS USING AN 18-ITEM BEHAVIOR RATING FORM WERE CONDUCTED WITH THE PATIENTS' FORMER HIGH SCHOOL TEACHERS. CONTROL SUBJECTS WERE ALSO RATED. ADDITIONAL DATA WERE…

  4. High School Students' Views on Blended Learning

    ERIC Educational Resources Information Center

    Yapici, Ibrahim Umit; Akbayin, Hasan

    2012-01-01

    In this study, it is aimed to determine the high school students' views on blended learning. The study was carried out in biology course for the lesson unit of "Classification of Living Things and Biodiversity" with 47 9[superscript th] grade students attending Nevzat Ayaz Anatolian High School in the second term of the academic year of…

  5. High quality metal-quantum dot-metal structure fabricated with a highly compatible self-aligned process

    NASA Astrophysics Data System (ADS)

    Yingchun, Fu; Xiaofeng, Wang; Liuhong, Ma; Yaling, Zhou; Xiang, Yang; Xiaodong, Wang; Fuhua, Yang

    2015-12-01

    A self-aligned process to fabricate a “metal-quantum dot-metal” structure is presented, based on an “electron beam lithography, thin film deposition and dry etching process”. The sacrificial layers used can improve the lift-off process, and novel lithography layouts design can improve the mechanical strength of the fabricated nanostructures. The superiority of the self-aligned process includes low request for overlay accuracy, high compatibility with a variety of materials, and applicable to similar structure devices fabrication. Finally, a phase change memory with fully confined phase-change material node, with the length × width × height of 255 × 45 × 30 nm3 was demonstrated. Project supported by the National Basic Research Program of China (No. 2011CB922103), and the National Natural Science Foundation of China (Nos. 61376420, 61404126, A040203).

  6. The Preparation of Schools for Serious School Violence: An Analysis of New Mexico Public High Schools

    ERIC Educational Resources Information Center

    DiMatteo, Henry

    2012-01-01

    This study surveyed New Mexico high school principals on their current state of preparedness for serious school violence. The researcher surveyed 119 public high schools, receiving a 65% return rate from a 25-question survey. Specifically, this study analyzed the relationships of three predictor variables: prevention, response, and building of…

  7. Shifting Attendance Trajectories from Middle to High School: Influences of School Transitions and Changing School Contexts

    ERIC Educational Resources Information Center

    Benner, Aprile D.; Wang, Yijie

    2014-01-01

    In the current study, we examine patterns of school attendance across middle and high school with a diverse sample of 8,908 students (48% female; 54% Latino, 31% White, 13% African American, 2% Asian American). Attendance declined from middle through high school, but this overall pattern masked important variations. In total, 44% of students…

  8. Air ventilation impacts of the "wall effect" resulting from the alignment of high-rise buildings

    NASA Astrophysics Data System (ADS)

    Yim, S. H. L.; Fung, J. C. H.; Lau, A. K. H.; Kot, S. C.

    The objective of this study is to investigate the air ventilation impacts of the so called "wall effect" caused by the alignment of high-rise buildings in complex building clusters. The research method employs the numerical algorithm of computational fluid dynamics (CFD - FLUENT) to simulate the steady-state wind field in a typical Hong Kong urban setting and investigate pollutant dispersion inside the street canyon utilizing a pollutant transport model. The model settings of validation study were accomplished by comparing the simulation wind field around a single building block to wind tunnel data. The results revealed that our model simulation is fairly close to the wind tunnel measurements. In this paper, a typical dense building distribution in Hong Kong with 2 incident wind directions (0° and 22.5°) is studied. Two performance indicators are used to quantify the air ventilation impacts, namely the velocity ratio ( VR) and the retention time ( T r) of pollutants at the street level. The results indicated that the velocity ratio at 2 m above ground was reduced 40% and retention time of pollutants increased 80% inside the street canyon when high-rise buildings with 4 times height of the street canyon were aligned as a "wall" upstream. While this reduction of air ventilation was anticipated, the magnitude is significant and this result clearly has important implications for building and urban planning.

  9. Highly ordered alignment of a vinyl polymer by host-guest cross-polymerization.

    PubMed

    Distefano, Gaetano; Suzuki, Hirohito; Tsujimoto, Masahiko; Isoda, Seiji; Bracco, Silvia; Comotti, Angiolina; Sozzani, Piero; Uemura, Takashi; Kitagawa, Susumu

    2013-04-01

    Chain alignment can significantly influence the macroscopic properties of a polymeric material, but no general and versatile methodology has yet been reported to obtain highly ordered crystalline packing of polymer chains, with high stability. Here, we disclose a strategy that relies on 'ordered crosslinks' to produce polymeric materials that exhibit a crystalline arrangement. Divinyl crosslinkers (2,5-divinyl-terephthalate) were first embedded, as substitutional ligands, into the structure of a porous coordination polymer (PCP), [Cu(terephthalate)triethylenediamine0.5]n. A representative vinyl monomer, styrene, was subsequently polymerized inside the channels of the host PCP. The polystyrene chains that form within the PCP channels also crosslink with the divinyl species. This bridges together the polymer chains of adjacent channels and ensures that, on selective removal of the PCP, the polymer chains remain aligned. Indeed, the resulting material exhibits long-range order and is stable to thermal and solvent treatments, as demonstrated by X-ray powder diffraction and transmission electron microscopy.

  10. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    1998-08-01

    Secondary School Feature Articles * Orbital Models Made of Plastic Soda Bottles, by Vyacheslav V. Samoshin, p. 985. * Experimentally Determining the Molecular Weight of Carbon Dioxide Using a Mylar Balloon, by Barbara Albers Jackson and David J. Crouse, p. 997.

  11. School-Based Assessment of ADHD: Purpose, Alignment with Best Practice Guidelines, and Training

    ERIC Educational Resources Information Center

    Ogg, Julia; Fefer, Sarah; Sundman-Wheat, Ashley; McMahan, Melanie; Stewart, Tiffany; Chappel, Ashley; Bateman, Lisa

    2013-01-01

    Youth exhibiting symptoms of attention deficit hyperactivity disorder are frequently referred to school psychologists because of academic, social, and behavioral difficulties that they face. To address these difficulties, evidence-based assessment methods have been outlined for multiple purposes of assessment. The goals of this study were to…

  12. District of Columbia Public Schools: Defining Instructional Expectations and Aligning Accountability and Support

    ERIC Educational Resources Information Center

    Curtis, Rachel

    2011-01-01

    After spending decades introducing curriculum and instructional programs with little to show in the way of student achievement results, the District of Columbia Public Schools (DCPS), under the leadership of Chancellor Michelle Rhee, decided to shift its focus. Emphasizing what to teach had yielded few results. Dogged by its standing as perhaps…

  13. High School Physics Offerings by Socioeconomic Profile

    NASA Astrophysics Data System (ADS)

    2011-12-01

    This fall we have been examining physics classes in U.S. high schools by the principal's assessment of the socioeconomic profile of each school. This month we turn our focus to the distribution of high school physics enrollment across the different types of physics offered. Not only do fewer students take physics at "worse off" schools (see the October issue), but the types of physics courses students take also differs by socioeconomic profile. About 10% of the students taking physics at "worse off" schools take AP and second-year physics; almost 20% of the students at "better off" schools take these courses. At "worse off" schools, a higher proportion of students are enrolled in conceptual courses, including Physics First and regular physics taught using a conceptual textbook. The data we have presented over the last four months suggests that differences in physics taking in high school by blacks and Hispanics are driven, in part, by underlying socioeconomic factors. Other factors, such as the availability of additional seats in physics classes and the ability of teachers to attract students to physics, also impact physics taking. It is unlikely that the racial and ethnic differences in physics taking in high school will decrease unless the underlying factors are addressed.

  14. High-performance transparent and stretchable all-solid supercapacitors based on highly aligned carbon nanotube sheets

    PubMed Central

    Chen, Tao; Peng, Huisheng; Durstock, Michael; Dai, Liming

    2014-01-01

    By using highly aligned carbon nanotube (CNT) sheets of excellent optical transmittance and mechanical stretchability as both the current collector and active electrode, high-performance transparent and stretchable all-solid supercapacitors with a good stability were developed. A transmittance up to 75% at the wavelength of 550 nm was achieved for a supercapacitor made from a cross-over assembly of two single-layer CNT sheets. The transparent supercapacitor has a specific capacitance of 7.3 F g−1 and can be biaxially stretched up to 30% strain without any obvious change in electrochemical performance even over hundreds stretching cycles. PMID:24402400

  15. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    2001-10-01

    JCE publications regularly make connections to a wide variety of interests, of which art is but one. Interdisciplinary Connections is a High School Feature Column designed to meet this challenge. Articles have been published relating literature (2) and writing (3) to chemistry. If you have developed interdisciplinary connections that you would like to share with other teachers, I encourage you to contact the feature editor, Mark Alber.2 Additional examples of annotated bibliographies on chemical connections to other disciplines or applications include food science (4), environmental concerns (5), and writing (6,7). The online "Search" link in the left-hand column of the home page of HS CLIC can lead to the discovery of articles relevant to many other interests. Happy connecting!

    Note

    1. For more information about NCW, visit their Web site.
    2. For the feature mission statement and contact information see the HS CLIC Web site.

    Literature Cited

    1. Chem. Eng. News 2001, 79 (Feb 26), 50.
    2. Thoman, C. J. J. Chem. Educ. 1998, 75, 495.
    3. Alber, M. J. Chem. Educ. 2001, 78, 478.
    4. Jacobsen, E. K. J. Chem. Educ.2000, 77, 1256.
    5. Moore, J. W.; Moore, E. A. J. Chem. Educ. 1976, 53, 167; 1976, 53, 240; 1975, 52, 288.
    6. Shires, N. P. J. Chem. Educ. 1991, 68, 494.
    7. Waterman, E. L. J. Chem. Educ. 1981, 58, 826.

  16. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    2000-05-01

    for You? The end of the school year is approaching quickly. In previous years, several readers have submitted manuscripts soon after the end of the school year, while ideas were fresh in their mind and there was relief from the demands of daily classes. If you have an idea for an article, I encourage you to think about writing as soon as the school term ends. I can probably guess what you are saying, "I don't have anything that readers would be interested in." This is a common reaction, to which we frequently respond by reminding high school teachers that this is "your journal" and the only way to ensure that topics of interest to you are considered or published is by your active participation. In this presidential election year I am reminded of the familiar sentiment, "I voted in the election, so I have earned the right to complain about the politicians." I do not wish to encourage complaining, but there is a relevant correlation. By submitting manuscripts to the Journal, you are ensuring that you will continue to get your money's worth because it will include topics of interest to you. When considering a submission, many prospective authors are overwhelmed at the thought of preparing a complete manuscript. Don't let that stop you. If you have an idea, an outline, or a rough draft, any of the feature editors or I would be happy to discuss it with you. This one-on-one interaction during the development process will help you express your ideas more effectively. Many teachers across the country who are faced with similar situations and problems each day would benefit from an article discussing innovative teaching strategies or a new way to look at principles we teach every year. As you begin to formulate your ideas, I would like to emphasize five features whose editors are fellow teachers:

    • JCE Classroom Activities. An invitation for contributions was issued in the April issue of this column (JCE, 2000, 77, 431).
    • Chemical Principles Revisited

    • Photopolymerization of Diacetylene on Aligned Multiwall Carbon Nanotube Microfibers for High-Performance Energy Devices.

      PubMed

      Ulaganathan, Mani; Hansen, Reinack Varghese; Drayton, Nateisha; Hingorani, Hardik; Kutty, R Govindan; Joshi, Hrishikesh; Sreejith, Sivaramapanicker; Liu, Zheng; Yang, Jinglei; Zhao, Yanli

      2016-12-07

      Linear two-dimensional materials have recently attracted an intense interest for supercapacitors because of their potential uses as electrodes in next-generation wearable electronics. However, enhancing the electrochemical properties of these materials without complicated structural modifications remains a challenge. Herein, we present the preparation of a hybrid electrode system via polydiacetylene (PDA) cloaking on the surface of aligned multiwall carbon nanotubes (MWCNTs) through self-assembly based in situ photopolymerization. This strategy eliminates the need for initiators and binders that hinder electrochemical performance in conventional conducting polymer based composite electrodes. As noncovalent PDA cloaking did not alter the chemical structure of MWCNTs, high inherent conductivity from sp(2) hybridized carbon was preserved. The resulting hybrid microfiber (MWCNT@PDA) exhibited a significant increase in specific capacitance (1111 F g(-1)) when compared to bare MWCNTs (500 F g(-1)) and PDA (666.7 F g(-1)) in a voltage window of 0-1.2 V at a current density of 3 A g(-1) in 0.5 M K2SO4 electrolyte. The specific capacitance was retained (ca. 95%) after 7000 charge/discharge cycles. The present results suggest that aligned MWCNTs cloaked with conjugated polymers could meet the demands for future flexible electronics.

    • Self-alignment of silver nanoparticles in highly ordered 2D arrays

      NASA Astrophysics Data System (ADS)

      Rodríguez-León, Ericka; Íñiguez-Palomares, Ramón; Urrutia-Bañuelos, Efraín; Herrera-Urbina, Ronaldo; Tánori, Judith; Maldonado, Amir

      2015-03-01

      We have synthesized silver nanoparticles in the non-polar phase of non-aqueous microemulsions. The nanocrystals have been grown by reducing silver ions in the microemulsion cylindrical micelles formed by the reducing agent (ethylene glycol). By a careful deposit of the microemulsion phase on a substrate, the micelles align in a hexagonal geometry, thus forming a 2D array of parallel strings of individual silver nanoparticles on the substrate. The microemulsions are the ternary system of anionic surfactant, non-polar solvent (isooctane), and solvent polar (ethylene glycol); the size of synthesized nanoparticles is about 7 nm and they are monodisperse. The study of the microstructure was realized by transmission electron microscopy, high-resolution technique transmission electron microscopy (HR-TEM), and Fourier processing using the software Digital Micrograph for the determination of the crystalline structure of the HR-TEM images of the nanocrystals; chemical composition was determined using the energy-dispersive X-ray spectroscopy. Addition technique polarizing light microscopy allowed the observation of the hexagonal phase of the system. This method of synthesis and self-alignment could be useful for the preparation of patterned materials at the nanometer scale.

    • Self-alignment of silver nanoparticles in highly ordered 2D arrays.

      PubMed

      Rodríguez-León, Ericka; Íñiguez-Palomares, Ramón; Urrutia-Bañuelos, Efraín; Herrera-Urbina, Ronaldo; Tánori, Judith; Maldonado, Amir

      2015-01-01

      We have synthesized silver nanoparticles in the non-polar phase of non-aqueous microemulsions. The nanocrystals have been grown by reducing silver ions in the microemulsion cylindrical micelles formed by the reducing agent (ethylene glycol). By a careful deposit of the microemulsion phase on a substrate, the micelles align in a hexagonal geometry, thus forming a 2D array of parallel strings of individual silver nanoparticles on the substrate. The microemulsions are the ternary system of anionic surfactant, non-polar solvent (isooctane), and solvent polar (ethylene glycol); the size of synthesized nanoparticles is about 7 nm and they are monodisperse. The study of the microstructure was realized by transmission electron microscopy, high-resolution technique transmission electron microscopy (HR-TEM), and Fourier processing using the software Digital Micrograph for the determination of the crystalline structure of the HR-TEM images of the nanocrystals; chemical composition was determined using the energy-dispersive X-ray spectroscopy. Addition technique polarizing light microscopy allowed the observation of the hexagonal phase of the system. This method of synthesis and self-alignment could be useful for the preparation of patterned materials at the nanometer scale.

    • District Support Systems for the Alignment of Curriculum, Instruction, and Assessment: Can We Predict Student Achievement in Reading and Writing for School Turnaround?

      ERIC Educational Resources Information Center

      Abbott, Laura Lynn Tanner

      2014-01-01

      The purpose of this quantitative non-experimental predictive study was to determine if CIA alignment factors and related district support systems are associated with student achievement to enable the turnaround of schools in crisis. This study aimed to utilize the District Snapshot Tool to determine if the district systems that support CIA…

  1. Exit Strategies: How Low-Performing High Schools Respond to High School Exit Examination Requirements

    ERIC Educational Resources Information Center

    Holme, Jennifer Jellison

    2013-01-01

    Background: Over the past several decades, a significant number of states have either adopted or increased high school exit examination requirements. Although these policies are intended to generate improvement in schools, little is known about how high schools are responding to exit testing pressures. Purpose: This study examined how five…

  2. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    1999-04-01

    Secondary School Feature Articles * Amino Acid Wordsearch, by Terry L. Helser, p 495. Games, Puzzles, and Humor In honor of April Fools' Day this issue contains 22 pages devoted to games and puzzles that can be used to teach aspects of chemistry. Most are designed for high school and first-year college students. The lead article, p 481, contains an annotated bibliography of chemistry games, complete with a vendor list. Many of the annotated games must be purchased, but the other articles that follow in this issue describe some games and puzzles that require minimal preparation using a word processor and readily available materials. Actually, JCE has a long tradition of publishing games and puzzles for chemistry teachers and their students. Read the letter by Helser and the Editor's response, p 468, for some recent background. Not having counted articles over past years, I became curious and turned to the online index, accessed by way of http://jchemed.chem.wisc.edu/. Because I wanted to search the entire 75-year life of the Journal, I searched titles for the words "game", "puzzle", and "humor" and obtained a total of 85 hits from the three searches. After eliminating titles of articles that were not applicable, I found that at least 25 games, 48 puzzles, and 5 humor articles have appeared during the past 75 years. At an average of one per year, the JCE editors hardly can be accused of frivolity, but game, puzzle, and humor articles have been published. The term "game" did not appear in any titles during 1945-1970, "puzzle" did not appear from 1927 to 1953, and there was no mention of humor (in the titles) prior to 1974. What appears to be the earliest article (1929) about a game was authored by an undergraduate student at the University of Colorado (1). It was titled "Chemical Bank", and the game pieces were tokens cut from cork stoppers. Wire hooks were inserted in the side of the token to represent valence electrons available for bonding. Carbon contained 4 hooks

  3. High school science fair and research integrity

    PubMed Central

    Dalley, Simon; Shepherd, Karen; Reisch, Joan

    2017-01-01

    Research misconduct has become an important matter of concern in the scientific community. The extent to which such behavior occurs early in science education has received little attention. In the current study, using the web-based data collection program REDCap, we obtained responses to an anonymous and voluntary survey about science fair from 65 high school students who recently competed in the Dallas Regional Science and Engineering Fair and from 237 STEM-track, post-high school students (undergraduates, 1st year medical students, and 1st year biomedical graduate students) doing research at UT Southwestern Medical Center. Of the post-high school students, 24% had competed in science fair during their high school education. Science fair experience was similar overall for the local cohort of Dallas regional students and the more diverse state/national cohort of post-high school students. Only one student out of 122 reported research misconduct, in his case making up the data. Unexpectedly, post-high school students who did not participate in science fair anticipated that carrying out science fair would be much more difficult than actually was the case, and 22% of the post-high school students anticipated that science fair participants would resort to research misconduct to overcome obstacles. No gender-based differences between students’ science fair experiences or expectations were evident. PMID:28328976

  4. High school science fair and research integrity.

    PubMed

    Grinnell, Frederick; Dalley, Simon; Shepherd, Karen; Reisch, Joan

    2017-01-01

    Research misconduct has become an important matter of concern in the scientific community. The extent to which such behavior occurs early in science education has received little attention. In the current study, using the web-based data collection program REDCap, we obtained responses to an anonymous and voluntary survey about science fair from 65 high school students who recently competed in the Dallas Regional Science and Engineering Fair and from 237 STEM-track, post-high school students (undergraduates, 1st year medical students, and 1st year biomedical graduate students) doing research at UT Southwestern Medical Center. Of the post-high school students, 24% had competed in science fair during their high school education. Science fair experience was similar overall for the local cohort of Dallas regional students and the more diverse state/national cohort of post-high school students. Only one student out of 122 reported research misconduct, in his case making up the data. Unexpectedly, post-high school students who did not participate in science fair anticipated that carrying out science fair would be much more difficult than actually was the case, and 22% of the post-high school students anticipated that science fair participants would resort to research misconduct to overcome obstacles. No gender-based differences between students' science fair experiences or expectations were evident.

  5. High finesse optical fiber cavities: optimal alignment and robust stabilization (Conference Presentation)

    NASA Astrophysics Data System (ADS)

    Ratschbacher, Lothar; Gallego, Jose; Ghosh, Sutapa; Alavi, Seyed; Alt, Wolfgang; Martinez-Dorantes, Miguel; Meschede, Dieter

    2016-04-01

    Fiber Fabry-Perot cavities, formed by micro-machined mirrors on the end-facets of optical fibers, are used in an increasing number of technical and scientific applications. Some of the most promising areas of application of these optical micro-resonators with high finesse and small mode volume are in the field of quantum communication and information. The resonator-enhanced light-matter interaction, for instance, provide basis for the realization of efficient optical interfaces between stationary matter-based quantum nodes and flying single-photon qubits. To date fiber Fabry-Perot cavities have been successfully applied in experiments interfacing single photons with a wide range of quantum systems, including cold atoms, ions and solid state emitters as well as quantum optomechanical experiments. Here we address some important practical questions that arise during the experimental implementation of high finesse fiber Fabry-Perot cavities: How can optimal fiber cavity alignment be achieved and how can the efficiency of coupling light from the optical fibers to the cavity mode and vice versa be characterized? How should optical fiber cavities be constructed and stabilized to fulfill their potential for miniaturization and integration into robust scientific and technological devices that can operate outside of dedicated laboratory environments in the future? The first two questions we answer with an analytic mode matching calculation that relates the alignment dependent fiber-to-cavity mode-matching efficiency to the easily measurable dip in the reflected light power at the cavity resonance. Our general analysis provides a simple recipe for the optimal alignment of fiber Fabry-Perot cavities and moreover for the first time explains the asymmetry in their reflective line shapes. The latter question we explore by investigating a novel, intrinsically rigid fiber cavity design that makes use of the high passive stability of a monolithic cavity spacer and employs thermal

  6. Helping High Schools Meet Higher Standards

    ERIC Educational Resources Information Center

    Au, Kathryn H.

    2013-01-01

    Educational policy in the U.S. currently centers on college and career readiness, with the spotlight is on high schools to meet higher expectations for students' literacy achievement. Ever-rising expectations are consistent with the U.S. standards movement, now in its third iteration. As funding for school improvement becomes increasingly scarce,…

  7. After the Storm: Rebuilding Joplin High School

    ERIC Educational Resources Information Center

    French, Jim

    2012-01-01

    One of the deadliest and most destructive tornadoes in the history of the United States ripped through the southeast Missouri town of Joplin on May 22, 2011. As it traveled along a 13-mile path it claimed 161 lives and caused more than $151 million in damages. Ten schools were damaged or destroyed and Joplin High School was a total loss. Just 48…

  8. LABORATORY EXERCISES IN OCEANOGRAPHY FOR HIGH SCHOOLS.

    ERIC Educational Resources Information Center

    National Science Foundation, Washington, DC.

    DESCRIBED ARE LABORATORY EXERCISES IN OCEANOGRAPHY DEVELOPED FOR USE IN HIGH SCHOOLS BY THE SECONDARY SCHOOL TEACHERS IN THE 1967 NATIONAL SCIENCE FOUNDATION (NSF) SUMMER INSTITUTE IN OCEANOGRAPHY AT FLORIDA STATE UNIVERSITY. INCLUDED ARE SUCH ACTIVITIES AS (1) THE MEASUREMENT OF TEMPERATURE, WATER VAPOR, PRESSURE, SALINITY, DENSITY, AND OTHERS,…

  9. Charting a Course after High School

    ERIC Educational Resources Information Center

    Samuels, Christina A.

    2009-01-01

    This article reports that for students with disabilities, planning for life after high school is regulated by the Individuals with Disabilities Education Act (IDEA), just like other aspects of special education. But despite tweaks to the federal law over its 34-year history--including a relatively recent change that requires schools to give…

  10. Career Development in Alternative High School Students

    ERIC Educational Resources Information Center

    Nyhof, Daniel Clark

    2013-01-01

    Public schools, colleges, and universities all strive to prepare students for the workforce or further education through career development activities and career education. Research shows many high school students have had insufficient exposure to and have inadequate information about career related tasks and duties. Studies also show that many…

  11. High School Extracurricular Activities & College Grades.

    ERIC Educational Resources Information Center

    Rombokas, Mary; And Others

    Many factors influence the development and socialization of American adolescents including peers, schools, family, and the community. This paper examines how the relationship of extracurricular participation influences academic growth. To determine if selected personal and academic variables during high school currently affect college academic…

  12. Curriculum Integration in Ontario High Schools

    ERIC Educational Resources Information Center

    Grice, James

    2011-01-01

    In many North American schools, the acquirement of knowledge is encouraged in the most fractious of ways. At the high-school level, knowledge is often channelled into separate, specialized units of study. Rarely is an effort made to develop cross-subject, unifying themes that can help students recognize important points of curricular overlap.…

  13. San Miguel High School: Focus and Preparation

    ERIC Educational Resources Information Center

    Principal Leadership, 2010

    2010-01-01

    The corporate internship program is a cornerstone of the education that students receive at San Miguel High School in Tucson, Arizona. Four students share one job, so each student works for a corporate partner outside of the school every fourth day. The money they earn is used to help defray the cost of their education, and the experience is…

  14. Model Program: Brillion High School, Brillion, Wisconsin

    ERIC Educational Resources Information Center

    Meyer, Steve

    2007-01-01

    The Brillion School District is located in Brillion, Wisconsin, approximately 20 miles south of Green Bay in the heart of the Fox Valley. Brillion High School (BHS) has approximately 330 students in Grades 9-12. Brillion is home to approximately 3000 residents. Interestingly, Brillion also serves as the headquarters of three major manufacturing…

  15. Television Journalism at Chanute High School.

    ERIC Educational Resources Information Center

    McDonald, Patricia A.; Hudiburg, George F.

    1984-01-01

    Describes the successful first year of a public communications class at Chanute High School (Kansas), the objective of which was for 10 participating students to research, organize, and present a biweekly, school-oriented television program which would be shown on the local Cablevision channel. (MH)

  16. Benjamin Franklin High School Unit Program.

    ERIC Educational Resources Information Center

    Wohl, Seth F.

    The Benjamin Franklin High School Unit Program in New York City was designed to overcome the serious academic deficiencies identified as criterion for entry into the program: retardation in reading and mathematics and to improve attitudes toward school, increase classroom attendance and participation, reduce the dropout rate, improve self-image…

  17. High School Graduation--and Then What?

    ERIC Educational Resources Information Center

    Tamol, Susanna

    2007-01-01

    Have parents ever thought about the future of their child with special needs? What happens after they graduate from or ages out of the school system? In this article, the author discusses employment. She feels the best time to start planning and preparing is while the child is still in junior high school. She offers some suggestions that may help…

  18. High School Teachers' Identities: Constructing Civic Selves

    ERIC Educational Resources Information Center

    Obenchain, Kathryn M.; Balkute, Asta; Vaughn, Erin; White, Shannon

    2016-01-01

    Research suggests that teachers play a role in the type of citizenship education implemented in schools. The purpose of this qualitative case study was to explore how two high school teachers understood and enacted their civic identities as a dimension of their teacher identities. Findings suggest that factors contributing to an individual's civic…

  19. The Geography Learning of High School Seniors.

    ERIC Educational Resources Information Center

    Allen, Russell; And Others

    This report presents results of the 1988 National Assessment of Educational Progress (NAEP) survey of the geographic knowledge and skills of high school seniors. A national stratified sample of more than 3,000 twelfth graders from approximately 300 public and private schools responded to 76 multiple-choice questions about the following 4 topics in…

  20. Characteristics of Continuation High School Students.

    ERIC Educational Resources Information Center

    Kratzert, William F.; Kratzert, Mona Y.

    This document reports on a study of the self-concept of students enrolled in a continuation high school. A random sample of 40 students was selected from a school of 190 students. All were administered the Piers-Harris Children's Self Concept Scale to determine their feelings about themselves, and an author-prepared questionnaire to determine…

  1. ESL: Asian High School Students' Perspectives.

    ERIC Educational Resources Information Center

    Minami, Masahiko

    A study of 30 Asian high school students (9 males, 21 females), who were in U.S. schools for a variety of reasons, ranging from extended visits to families of relatives to temporary academic or occupational appointments of parents in U.S. universities or corporations investigated student perspectives on English-as-a-Second-Language (ESL)…

  2. New Policy Issues for Arts High Schools.

    ERIC Educational Resources Information Center

    Undercofler, James F.

    1988-01-01

    Highlights the controversy surrounding arts high schools, considering the appropriateness of their curriculum, their clientele, and their relation to the larger education and arts education communities. States that these schools must define their objectives within the larger educational context, demonstrate the power of arts education, and provide…

  3. High Schools Help Conquer Cardiac Arrest.

    ERIC Educational Resources Information Center

    Kyle, James

    1998-01-01

    A class of devices known as automated external defibrillators (AEDs) enable nonmedical professionals to respond to cardiac emergencies. The Jackson County School District, West Virginia, is the first in the country to have AEDs at high school sporting events. AEDs are proven to be safe, accurate, and easy to use. (MLF)

  4. High School Dropouts in America. Fact Sheet

    ERIC Educational Resources Information Center

    Alliance for Excellent Education, 2009

    2009-01-01

    Over a million of the students who enter ninth grade each fall fail to graduate with their peers four years later. In fact, about seven thousand students drop out every school day. Perhaps this statistic was acceptable fifty years ago, but the era in which a high school dropout could earn a living wage has ended in the United States. Dropouts…

  5. The High School Experience: What Students Say

    ERIC Educational Resources Information Center

    Groves, Robin; Welsh, Bridie

    2010-01-01

    Increasingly it is recognised that high school students' views about learning and school experiences are important considerations in education. Students' insights are important as a basis for their active and productive involvement, and where there is a serious intention to improve students' learning. This paper reports on the learning and school…

  6. Reading Attitudes of Texas High School Students

    ERIC Educational Resources Information Center

    Bussert-Webb, Kathy; Zhang, Zhidong

    2016-01-01

    Through random sampling, we surveyed 2,568 high school students throughout Texas to determine their reading attitudes vis-à-vis individual and school background variables. Sources were the Rhody reading attitude scale and public domain campus summary data; the lenses of attitude theory and social justice informed this study. Significant…

  7. Scientific Literacy of High School Students.

    ERIC Educational Resources Information Center

    Lucas, Keith B.; Tulip, David F.

    This investigation was undertaken in order to establish the status of scientific literacy among three groups of secondary school students in four Brisbane, Australia high schools, and to reduce the apparent reticence of science teachers to evaluate students' achievement in the various dimensions of scientific literacy by demonstrating appropriate…

  8. The Supported Teen: Transitioning to High School

    ERIC Educational Resources Information Center

    Dorman, Benton

    2012-01-01

    Transition plans for students with special needs provide support for social and academic success while giving students an accurate picture of what to expect in high school. The Texas Comprehensive Center recommends that schools develop a comprehensive transition plan district-wide. This district plan must include the cooperation of staff from the…

  9. Norview High School: Leadership Fosters Achievment

    ERIC Educational Resources Information Center

    Principal Leadership, 2013

    2013-01-01

    Often little unsaid things demonstrate what is truly important in a school. When teachers have common planning time and all of the department chairs share a single space as they do at Norview High School in Norfolk, VA, the unmistakable message is that instructional collaboration and leadership are expected and valued. Norview, an urban,…

  10. High School Students as Social Scientists.

    ERIC Educational Resources Information Center

    Gould, Edward; And Others

    This paper describes an informal, two-year collaboration of high school students, a teacher, and a psychologist; offered as an optional part of an elective, experimental psychology course. The goal was to help students begin to adopt the perspectives, tools, and research skills of the social scientist. The school has a student body of 2400; more…

  11. [Newington High School Gifted and Talented Program.

    ERIC Educational Resources Information Center

    Newington School District, CT.

    Newington (Connecticut) High School developed a gifted/talented program based on independent research, seminar sessions, course offerings in the collegiate setting, internships, and college credit programs at the school. An evening seminar series addresses topics chosen as a result of student needs assessment. The Collegiate Challenge Series…

  12. Vintage High School Citizenship Recognition Program.

    ERIC Educational Resources Information Center

    Napa Valley Unified School District, Napa, CA.

    THE FOLLOWING IS THE FULL TEXT OF THIS DOCUMENT: Recognition of good citizenship is one component of the Vintage High School Student Incentive Program which could be easily adapted for any school. The only direct cost is for postage to mail congratulatory letters home and a small initial cost for printing award certificates. On a rotating basis,…

  13. Cultures of Learning in Effective High Schools

    ERIC Educational Resources Information Center

    Tichnor-Wagner, Ariel; Harrison, Christopher; Cohen-Vogel, Lora

    2016-01-01

    Purpose: Research indicates that a culture of learning is a key factor in building high schools that foster academic achievement in all students. Yet less is known about which elements of a culture of learning differentiate schools with higher levels of academic performance. To fill this gap, this comparative case study examined the cultures of…

  14. Oak Mountain High School, Shelby County, Alabama.

    ERIC Educational Resources Information Center

    Design Cost Data, 2001

    2001-01-01

    Presents design features of the Oak Mountain High School (Alabama) consisting of an academic side of classrooms, administration, and media center; and an activity side consisting of cafeteria, gymnasium, practice gym, and a theater. The school's floor plan and photos are included. (GR)

  15. Restructuring Dade's High Schools: Curriculum and Organization.

    ERIC Educational Resources Information Center

    Florida International Univ., Miami. Inst. for Public Policy and Citizenship Studies.

    Findings from a study on the curriculum and organization of Dade public high schools are presented in this report. An honor student mentor group conducted a literature review and held discussions with assistant principals, English department heads, teachers, and students. From this research they concluded that problems in the schools are…

  16. States' Progress toward High School Restructuring

    ERIC Educational Resources Information Center

    National High School Center, 2007

    2007-01-01

    As many Title I high schools approach their fifth year of failing to meet adequate yearly progress (AYP), states and districts are struggling to navigate the new waters of school restructuring as required by the No Child Left Behind Act (NCLB) of 2001. This brief outlines the provisions of the law related to restructuring and includes strategies…

  17. High School Students' Meta-Modeling Knowledge

    ERIC Educational Resources Information Center

    Fortus, David; Shwartz, Yael; Rosenfeld, Sherman

    2016-01-01

    Modeling is a core scientific practice. This study probed the meta-modeling knowledge (MMK) of high school students who study science but had not had any explicit prior exposure to modeling as part of their formal schooling. Our goals were to (A) evaluate the degree to which MMK is dependent on content knowledge and (B) assess whether the upper…

  18. My Year as a High School Student

    ERIC Educational Resources Information Center

    Waldron, Deborah

    2006-01-01

    When high school physics teacher Deborah Waldron needed to pump up her knowledge of biology for National Board Certification, she enrolled in 9th grade Intensified Biology at her school. Waldron shares her observations of what she learned: from the inevitability of starting long-term projects late at night to the realization of how tempting…

  19. Writing at One Appalachian High School

    ERIC Educational Resources Information Center

    Iddings, Joshua Glenn

    2013-01-01

    The purpose of this study was to investigate twelfth grade writing instruction at one high school in the Northeastern Kentucky Appalachian region. At the time of the study, Kentucky schools were in a pivotal transitional period as they were adopting the Common Core State Standards while also removing the mandatory portfolio-based writing…

  20. STEM Applications in Turkish Science High Schools

    ERIC Educational Resources Information Center

    Colakoglu, Mustafa Hilmi

    2016-01-01

    The idea of establishing Science High Schools in Turkey was discussed in a multilateral project at the beginning of 1963. The Ministry of National Education (MoNE), Ford Foundation, Middle East Technical University (METU), Ankara University, and International Development Agency (AID) participated in this project to establish these schools. In…

  1. Subdimensions of Adolescent Belonging in High School

    ERIC Educational Resources Information Center

    Wallace, Tanner LeBaron; Ye, Feifei; Chhuon, Vichet

    2012-01-01

    Adolescents' sense of belonging in high school may serve a protective function, linking school-based relationships to positive youth outcomes. To advance the study of sense of belonging, we conducted a mixed method, factor analytic study (Phase 1 focus groups, N = 72; Phase 2 cross-sectional survey, N = 890) to explore the multidimensionality of…

  2. Academic Magnet Program at Burke High School.

    ERIC Educational Resources Information Center

    Sklarz, David P.

    A plan for the academic magnet high school (AMHS) program offered by the Charleston County (South Carolina) School District is presented in this report. A program overview describes general goals for students, which would emphasize thinking skills in all academic core areas, problem-solving skills in mathematics and research-based science,…

  3. Role of molecular orbital symmetry on the alignment dependence of high-order harmonic generation with molecules

    SciTech Connect

    Zhou Xiaoxin; Tong, X.M.; Zhao, Z.X.; Lin, C.D.

    2005-06-15

    It is shown that the alignment dependence of the yields of high-order harmonic generation (HHG) from molecules by intense lasers is governed by the orbital symmetry of the outermost electron(s). For N{sub 2}, with its outermost {sigma}{sub g} electron, the HHG yield is maximal when the molecules are aligned with the laser polarization direction, in agreement with the recent experiment of Itatani et al. [Nature 432, 867 (2004)]. For O{sub 2}, with its outermost {pi}{sub g} electron, the HHG yield peaks when the molecules are aligned at about 45 deg. from the polarization axis. We emphasize that the alignment dependence is determined mostly by the orbital symmetry and weakly on the laser parameters or the species.

  4. High performance flexible pH sensor based on carboxyl-functionalized and DEP aligned SWNTs

    NASA Astrophysics Data System (ADS)

    Liu, Lu; Shao, Jinyou; Li, Xiangming; Zhao, Qiang; Nie, Bangbang; Xu, Chuan; Ding, Haitao

    2016-11-01

    The detection and control of the pH is very important in many biomedical and chemical reaction processes. A miniaturized flexible pH sensor that is light weight, robust, and conformable is very important in many applications, such as multifunctional lab-on-a-chip systems or wearable biomedical devices. In this work, we demonstrate a flexible chemiresistive pH sensor based on dielectrophoresis (DEP) aligned carboxyl-functionalized single-walled carbon nanotubes (SWNTs). Decorated carboxyl groups can react with hydrogen (H+) and hydroxide (OH-) ions, enabling the sensor to be capable of sensing the pH. DEP is used to deposit well-organized and highly aligned SWNTs in desired locations, which improves the metal-nanotube interface and highly rapid detection of the pH, resulting in better overall device performance. When pH buffer solutions are dropped onto such SWNTs, the H+ and OH- ions caninteract with the carboxyl groups and affect the generation of holes and electrons in the SWNTs, leading to resistance variations in the SWNTs. The results shows that the relative resistance variations of the sensor increases linearly with increasing the pH values in the range from 5 to 9 and the response time ranges from 0.2 s to 22.6 s. The pH sensor also shows high performance in mechanical bendability, which benefited from the combination of flexible PET substrates and SWNTs. The SWNT-based flexible pH sensor demonstrates great potential in a wide range of areas due to its simple structure, excellent performance, low power consumption, and compatibility with integrated circuits.

  5. Membranes with highly ordered straight nanopores by selective swelling of fast perpendicularly aligned block copolymers.

    PubMed

    Yin, Jun; Yao, Xueping; Liou, Jiun-You; Sun, Wei; Sun, Ya-Sen; Wang, Yong

    2013-11-26

    Membranes with uniform, straight nanopores have important applications in diverse fields, but their application is limited by the lack of efficient producing methods with high controllability. In this work, we reported on an extremely simple and efficient strategy to produce such well-defined membranes. We demonstrated that neutral solvents were capable of annealing amphiphilic block copolymer (BCP) films of polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) with thicknesses up to 600 nm to the perpendicular orientation within 1 min. Annealing in neutral solvents was also effective to the perpendicular alignment of block copolymers with very high molecular weights, e.g., 362 000 Da. Remarkably, simply by immersing the annealed BCP films in hot ethanol followed by drying in air, the originally dense BCP films were nondestructively converted into porous membranes containing highly ordered, straight nanopores traversing the entire thickness of the membrane (up to 1.1 μm). Grazing incident small-angle X-ray spectroscopy confirmed the hexagonal ordering of the nanopores over large areas. We found that the overflow of P2VP chains from their reservoir P2VP cylinders and the deformation of the PS matrix in the swelling process contributed to the transformation of the solid P2VP cylinders to empty straight pores. The pore diameters can be tuned by either changing the swelling temperatures or depositing thin layers of metal oxides on the preformed membranes via atomic layer deposition with a subnanometer accuracy. To demonstrate the application of the obtained porous membranes, we used them as templates and produced centimeter-scale arrays of aligned nanotubes of metal oxides with finely tunable wall thicknesses.

  6. Linking Home-School Dissonance to School-Based Outcomes for African American High School Students

    ERIC Educational Resources Information Center

    Tyler, Kenneth; Brown-Wright, Lynda; Stevens-Watkins, Danelle; Thomas, Deneia; Stevens, Ruby; Roan-Belle, Clarissa; Gadson, Nadia; Smith, La Toya

    2010-01-01

    The current study examined associations between home-school dissonance and several academic and psychological variables among 239 African American high school students. Regression analyses revealed that home-school dissonance significantly predicted multiple academic and psychological variables, including academic cheating, disruptive classroom…

  7. TEACHING HIGH-SCHOOL SCIENCE.

    ERIC Educational Resources Information Center

    BARNARD, J. DARRELL

    THIS DOCUMENT WAS DEVELOPED TO HELP THE SECONDARY SCHOOL SCIENCE TEACHER KEEP PACE WITH THE CONTINUALLY ADVANCING FIELD OF EDUCATIONAL RESEARCH. IT IS ONE IN A SERIES OF PAMPHLETS ON "WHAT RESEARCH SAYS TO THE TEACHER," PRODUCED JOINTLY BY THE NATIONAL EDUCATION ASSOCIATION (NEA) DEPARTMENT OF CLASSROOM TEACHERS AND THE AMERICAN…

  8. High School Preparation for Employment.

    ERIC Educational Resources Information Center

    Hotchkiss, Lawrence; And Others

    This report contains four studies related to preparation of youth for employment after leaving school. The first study, "Learning as a Product of Exposure and Readiness" (Hotchkiss), examined the effects of curriculum on the learning of basic skills using an interaction model. The data collected revealed statistically significant interactions…

  9. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    1998-01-01

    Secondary School Feature Articles * Heat Capacity, Body Temperature, and Hypothermia, by Doris Kimbrough, p 48. * The Electromotive Series and Other Non-Absolute Scales, by Gavin Peckham, p 49. * Demonstrations on Paramagnetism with an Electronic Balance, by Adolf Cortel, p 61. * Toward More Performance Evaluation in Chemistry, by Sharon Rasp, p 64. A Wealth of Useful Information

  10. National standards for high school psychology curricula.

    PubMed

    2013-01-01

    The National Standards for High School Psychology Curricula attempts to represent current knowledge in the field of psychology in developmentally appropriate ways. Psychology is a popular high school course, one that can introduce students to scientific ideas and engage students in the learning process. However, it is difficult for even the best of teachers to present all of psychology in a single course for students who begin with virtually no formal knowledge of psychology. The standards presented here constitute the first of two reports in this issue of the American Psychologist (January 2013) representing recent American Psychological Association (APA) policies that support high-quality instruction in the teaching of high school psychology. These standards provide curricular benchmarks for student learning in the high school course.

  11. Automatic resonator alignment and power stabilization of high power C02 lasers

    NASA Astrophysics Data System (ADS)

    Akitt, Dale Richard

    The high power carbon dioxide laser has become a very important tool in the area of industrial materials processing. This is due primarily to the enormous optical intensities which the device can attain. Unfortunately, it has proved increasingly difficult to construct machines capable of maintaining a consistently uniform output beam at elevated power levels, for extended periods. These difficulties are often attributed to thermal distortion of the resonator optics. Because of this fact, researchers have invested considerable effort in the construction of water cooled, thermally stable optical benches, upon which to mount the resonator components. This approach is very expensive, and has provided only a partial solution to the problem. A different approach, and the subject of this thesis, is to construct a feedback control system which actively repositions the optical elements, so as to maintain optimum resonator alignment. Preliminary experiments demonstrated that this concept was indeed feasible. In this first study, a circular array of small thermistors was utilized as the feedback element. Indicators of mode uniformity in the vertical and horizontal directions were extracted from the array using electronic techniques. A relay type controller monitored these error measures and subsequently activated a pair of motor-micrometers fitted to one of the primary resonator mirrors. Although this thermistor-based system demonstrated the viability of the concept, the sensor array's slow response limited its performance. Subsequent experiments utilizing high speed pyroelectric detectors in place of the thermistors solved the problem. The next series of experiments was dedicated to finding a method of simultaneously aligning both primary resonator mirrors. This was accomplished by configuring the sensor array to monitor not only beam uniformity, but also beam position. A new controller was then developed which adjusted one mirror based on the position of the output beam

  12. Automatic Resonator Alignment and Power Stabilization of High Power Carbon Dioxide Lasers

    NASA Astrophysics Data System (ADS)

    Akitt, Dale Richard

    1992-01-01

    The high power carbon dioxide laser has become a very important tool in the area of industrial materials processing. This is due primarily to the enormous optical intensities which the device can attain. Unfortunately, it has proved increasingly difficult to construct machines capable of maintaining a consistently uniform output beam at elevated power levels, for extended periods. These difficulties are often attributed to thermal distortion of the resonator optics. Because of this fact, researchers have invested considerable effort in the construction of water cooled, thermally stable optical benches, upon which to mount the resonator components. This approach is very expensive, and has provided only a partial solution to the problem. A different approach, and the subject of this thesis, is to construct a feedback control system which actively re-positions the optical elements, so as to maintain optimum resonator alignment. Preliminary experiments demonstrated that this concept was indeed feasible. In this first study, a circular array of small thermistors was utilized as the feedback element. Indicators of mode uniformity in the vertical and horizontal directions were extracted from the array using electronic techniques. A relay type controller monitored these error measures and subsequently activated a pair of motor-micrometers fitted to one of the primary resonator mirrors. Although this thermistor-based system demonstrated the viability of the concept, the sensor array's slow response limited its performance. Subsequent experiments utilizing high speed pyroelectric detectors in place of the thermistors solved the problem. The next series of experiments was dedicated to finding a method of simultaneously aligning both primary resonator mirrors. This was accomplished by configuring the sensor array to monitor not only beam uniformity, but also beam position. A new controller was then developed which adjusted one mirror based on the position of the output beam

  13. 25 CFR 39.145 - Can a school receive both a small school adjustment and a small high school adjustment?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... small high school adjustment? 39.145 Section 39.145 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE... Adjustment § 39.145 Can a school receive both a small school adjustment and a small high school adjustment? A school that meets the criteria in § 39.140 can receive both a small school adjustment and a small...

  14. 25 CFR 39.145 - Can a school receive both a small school adjustment and a small high school adjustment?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... small high school adjustment? 39.145 Section 39.145 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE... Adjustment § 39.145 Can a school receive both a small school adjustment and a small high school adjustment? A school that meets the criteria in § 39.140 can receive both a small school adjustment and a small...

  15. 25 CFR 39.145 - Can a school receive both a small school adjustment and a small high school adjustment?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... small high school adjustment? 39.145 Section 39.145 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE... Adjustment § 39.145 Can a school receive both a small school adjustment and a small high school adjustment? A school that meets the criteria in § 39.140 can receive both a small school adjustment and a small...

  16. 25 CFR 39.145 - Can a school receive both a small school adjustment and a small high school adjustment?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... small high school adjustment? 39.145 Section 39.145 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE... Adjustment § 39.145 Can a school receive both a small school adjustment and a small high school adjustment? A school that meets the criteria in § 39.140 can receive both a small school adjustment and a small...

  17. 25 CFR 39.145 - Can a school receive both a small school adjustment and a small high school adjustment?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... small high school adjustment? 39.145 Section 39.145 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE... Adjustment § 39.145 Can a school receive both a small school adjustment and a small high school adjustment? A school that meets the criteria in § 39.140 can receive both a small school adjustment and a small...

  18. DOING Astronomy Research in High Schools.

    NASA Astrophysics Data System (ADS)

    Nook, M. A.; Williams, D. L.

    2000-12-01

    A collaboration between six science teachers at five central Minnesota high schools and astronomers at St. Cloud State University designed and implemented a program to involve high school students in active observational astronomy research. The emphasis of the program is to engage students and teachers in a research project that allows them to better understand the nature of scientific endeavor. Small, computerized telescopes and CCD cameras make it possible for high schools to develop astronomical research programs where the process of science can be experienced first hand. Each school obtained an 8-inch or 10-inch computerized SCT and a CCD camera or SLR. Astronomers from St. Cloud State University (SCSU) trained the teachers in proper astronomical techniques, as well as helping to establish the goals and objectives of the research projects. Each high school instructor trained students in observing and data reduction techniques and served as the research director for their school's project. Student observations continued throughout the school year concluding in the spring, 2000. A Variable Star Symposium was held May 20, 2000 as a culminating event. Each student involved in the process was invited to attend and give a presentation on the results of their research on variable stars. The symposium included an invited talk by a professional astronomer, and student oral and poster presentations. The research is continuing in all five of the original high schools. Eight additional schools have expressed interest in this program and are becoming involved in developing their research programs. This work is supported by Toyota Motor Sales, USA, Inc. and administered by the National Science Teachers Association through a 1999 Toyota TAPESTRY Grant and by St. Cloud State University and Independent School District 742, St. Cloud, MN.

  19. Different Demotivators for Japanese Junior High and High School Learners

    ERIC Educational Resources Information Center

    Hamada, Yo

    2011-01-01

    Motivation has been studied throughout the field of language acquisition for the past 20 years. Demotivation has also been researched in Japan at primarily the university and high school level. To provide a deeper understanding of demotivation for Japanese junior and senior high school learners, this study explores the following three questions.…

  20. Winding aligned carbon nanotube composite yarns into coaxial fiber full batteries with high performances.

    PubMed

    Weng, Wei; Sun, Qian; Zhang, Ye; Lin, Huijuan; Ren, Jing; Lu, Xin; Wang, Min; Peng, Huisheng

    2014-06-11

    Inspired by the fantastic and fast-growing wearable electronics such as Google Glass and Apple iWatch, matchable lightweight and weaveable energy storage systems are urgently demanded while remaining as a bottleneck in the whole technology. Fiber-shaped energy storage devices that can be woven into electronic textiles may represent a general and effective strategy to overcome the above difficulty. Here a coaxial fiber lithium-ion battery has been achieved by sequentially winding aligned carbon nanotube composite yarn cathode and anode onto a cotton fiber. Novel yarn structures are designed to enable a high performance with a linear energy density of 0.75 mWh cm(-1). A wearable energy storage textile is also produced with an areal energy density of 4.5 mWh cm(-2).

  1. Preparation of highly aligned silicon oxide nanowires with stable intensive photoluminescence

    NASA Astrophysics Data System (ADS)

    Duraia, El-Shazly M.; Mansurov, Z. A.; Tokmolden, S.; Beall, Gary W.

    2010-02-01

    In this work we report the successful formation of highly aligned vertical silicon oxide nanowires. The source of silicon was from the substrate itself without any additional source of silicon. X-ray measurement demonstrated that our nanowires are amorphous. Photoluminescence measurements were conducted through 18 months and indicated that there is a very good intensive emission peaks near the violet regions. The FTIR measurements indicated the existence of peaks at 463, 604, 795 and a wide peak at 1111 cm -1 and this can be attributed to Si-O-Si and Si-O stretching vibrations. We also report the formation of the octopus-like silicon oxide nanowires and the growth mechanism of these structures was discussed.

  2. Growth of high-density horizontally aligned SWNT arrays using Trojan catalysts.

    PubMed

    Hu, Yue; Kang, Lixing; Zhao, Qiuchen; Zhong, Hua; Zhang, Shuchen; Yang, Liangwei; Wang, Zequn; Lin, Jingjing; Li, Qingwen; Zhang, Zhiyong; Peng, Lianmao; Liu, Zhongfan; Zhang, Jin

    2015-01-20

    Single-walled carbon nanotube (SWNT)-based electronics have been regarded as one of the most promising candidate technologies to replace or supplement silicon-based electronics in the future. These applications require high-density horizontally aligned SWNT arrays. During the past decade, significant efforts have been directed towards growth of high-density SWNT arrays. However, obtaining SWNT arrays with suitable density and quality still remains a big challenge. Herein, we develop a rational approach to grow SWNT arrays with ultra-high density using Trojan catalysts. The density can be as high as 130 SWNTs μm(-1). Field-effect transistors fabricated with our SWNT arrays exhibit a record drive current density of -467.09 μA μm(-1) and an on-conductance of 233.55 μS μm(-1). Radio frequency transistors fabricated on these samples exhibit high intrinsic fT and fMAX of 6.94 and 14.01 GHz, respectively. These results confirm our high-density SWNT arrays are strong candidates for applications in electronics.

  3. Implications of aligning full registration of doctors with medical school graduation: a qualitative study of stakeholder perspectives

    PubMed Central

    Mattick, K L; Kaufhold, K; Kelly, N; Cole, J A; Scheffler, G; Rees, C E; Bullock, A; Gormley, G J; Monrouxe, L V

    2016-01-01

    Objectives The Shape of Training report recommended that full registration is aligned with medical school graduation. As part of a General Medical Council-funded study about the preparedness for practice of UK medical graduates, we explored UK stakeholders’ views about this proposal using qualitative interviews (30 group and 87 individual interviews) and Framework Analysis. Setting Four UK study sites, one in each country. Participants 185 individuals from eight stakeholder groups: (1) foundation year 1 (F1) doctors (n=34); (2) fully registered trainee doctors (n=33); (3) clinical educators (n=32); (4) undergraduate/postgraduate Deans, and Foundation Programme Directors (n=30); (5) other healthcare professionals (n=13); (6) employers (n=7); (7) policy and government (n=11); (8) patient and public representatives (n=25). Results We identified four main themes: (1) The F1 year as a safety net: patients were protected by close trainee supervision and ‘sign off’ to prevent errors; trainees were provided with a safe environment for learning on the job; (2) Implications for undergraduate medical education: if the proposal was accepted, a ‘radical review’ of undergraduate curricula would be needed; undergraduate education might need to be longer; (3) Implications for F1 work practice: steps to protect healthcare team integration and ensure that F1 doctors stay within competency limits would be required; (4) Financial, structural and political implications: there would be cost implications for trainees; clarification of responsibilities between undergraduate and postgraduate medical education would be needed. Typically, each theme comprised arguments for and against the proposal. Conclusions A policy change to align the timing of full registration with graduation would require considerable planning and preliminary work. These findings will inform policymakers’ decision-making. Regardless of the decision, medical students should take on greater responsibility

  4. Magnetic field alignment of randomly oriented, high aspect ratio silicon microwires into vertically oriented arrays.

    PubMed

    Beardslee, Joseph A; Sadtler, Bryce; Lewis, Nathan S

    2012-11-27

    External magnetic fields have been used to vertically align ensembles of silicon microwires coated with ferromagnetic nickel films. X-ray diffraction and image analysis techniques were used to quantify the degree of vertical orientation of the microwires. The degree of vertical alignment and the minimum field strength required for alignment were evaluated as a function of the wire length, coating thickness, magnetic history, and substrate surface properties. Nearly 100% of 100 μm long, 2 μm diameter, Si microwires that had been coated with 300 nm of Ni could be vertically aligned by a 300 G magnetic field. For wires ranging from 40 to 60 μm in length, as the length of the wire increased, a higher degree of alignment was observed at lower field strengths, consistent with an increase in the available magnetic torque. Microwires that had been exposed to a magnetic sweep up to 300 G remained magnetized and, therefore, aligned more readily during subsequent magnetic field alignment sweeps. Alignment of the Ni-coated Si microwires occurred at lower field strengths on hydrophilic Si substrates than on hydrophobic Si substrates. The magnetic field alignment approach provides a pathway for the directed assembly of solution-grown semiconductor wires into vertical arrays, with potential applications in solar cells as well as in other electronic devices that utilize nano- and microscale components as active elements.

  5. Investigating the Transition Process when Moving from a Spiral Curriculum Alignment into a Field-Focus Science Curriculum Alignment in Middle School

    ERIC Educational Resources Information Center

    Alwardt, Randi Kay

    2011-01-01

    This investigation examined the transition from a spiral science curriculum to a field-focus science curriculum in middle school. A spiral science curriculum focuses on a small part of each field of science during each middle school year, more of a general science concept. In contrast to that, the base of a field-focus curriculum is that each…

  6. High School Students' Attitudes Toward Homosexuality.

    ERIC Educational Resources Information Center

    Price, James H.

    1982-01-01

    A review of research concerning attitudes toward homosexuality and a study of 278 high school students' attitudes toward homosexuality show that males have significantly greater negative attitudes toward homosexuality. Tables display results of the study. (CJ)

  7. High School Biology: The Early Years.

    ERIC Educational Resources Information Center

    Rosenthal, Dorothy B.; Bybee, Rodger W.

    1988-01-01

    Discusses the emergence of the biology curriculum which replaced physiology, zoology, and botany in high school science courses and supplanted an early form of general science known as natural history. (RT)

  8. High School Polydrug Users and Abusers.

    ERIC Educational Resources Information Center

    Wright, Loyd S.

    1985-01-01

    Among 433 high school seniors, 12 percent were determined to be either polydrug users or abusers. Comparisons between nonpolydrug users and polydrug users on family violence, personality traits, psychological characteristics, and behavior are given. (Author/BL)

  9. Black Box Theatres: Cheyenne Mountain High School.

    ERIC Educational Resources Information Center

    Binder, Robert D.

    2002-01-01

    Describes the design of the academic arts building at Cheyenne Mountain High School in Colorado Springs, Colorado, including its black box theater, art classroom, computer graphics lab, gallery, video production area, and chorus classroom. (EV)

  10. Environmental Chemistry in the High School Curriculum.

    ERIC Educational Resources Information Center

    Stearns, Carole

    1988-01-01

    Discusses the incorporation of environmental chemistry topics into the traditional high school chemistry curriculum. Describes and provides lesson plans for the sulfur cycle and acid rain, and radioactivity and nuclear energy. Considers possible laboratory experiments. (CW)

  11. The College High School: An Educational Alternative

    ERIC Educational Resources Information Center

    Golden, Lester O.

    1973-01-01

    Without building costly new plants, the College High School plan can be implemented. This plan provides the kind of climate usually associated with colleges, where students accept major responsibility for selecting courses, choosing teachers, and managing free time. (Editor)

  12. Bridging the Industry-High School Gap.

    ERIC Educational Resources Information Center

    Bassow, Herb

    1984-01-01

    Highlights efforts to increase high school use of chemical industry resources. Indicates that a list of industry resources available to all Philadelphia (PA) area chemistry teachers is currently available from the American Chemistry Society Corporation Associates. (JN)

  13. High School Physics and the Affordable Computer.

    ERIC Educational Resources Information Center

    Harvey, Norman L.

    1978-01-01

    Explains how the computer was used in a high school physics course; Project Physics program and individualized study PSSC physics program. Evaluates the capabilities and limitations of a $600 microcomputer system. (GA)

  14. Number Theory in the High School Classroom.

    ERIC Educational Resources Information Center

    Dence, Thomas

    1999-01-01

    Demonstrates some of the usefulness of number theory to students on the high school setting in four areas: Fibonacci numbers, Diophantine equations, continued fractions, and algorithms for computing pi. (ASK)

  15. Microbiology as a High-School Elective

    ERIC Educational Resources Information Center

    Peterson, Priscilla

    1973-01-01

    Describes a course in microbiology offered as a high school science elective. The laboratory-oriented course has proved to be very popular and provides students with the basic techniques for handling equipment and working safely with bacteria. (JR)

  16. Making the Comprehensive High School Comprehensive

    ERIC Educational Resources Information Center

    Midjaas, Carl Larsen

    1975-01-01

    Three occupational labs (child care, graphic arts, and food service) are featured as examples of vocational facilities in a new comprehensive high school in Troy, Michigan. The article stresses the planning that went into the project's development. (BP)

  17. Graph Theory and the High School Student.

    ERIC Educational Resources Information Center

    Chartrand, Gary; Wall, Curtiss E.

    1980-01-01

    Graph theory is presented as a tool to instruct high school mathematics students. A variety of real world problems can be modeled which help students recognize the importance and difficulty of applying mathematics. (MP)

  18. Introducing Astrophysics Research to High School Students.

    ERIC Educational Resources Information Center

    Etkina, Eugenia; Lawrence, Michael; Charney, Jeff

    1999-01-01

    Presents an analysis of an astrophysics institute designed for high school students. Investigates how students respond cognitively in an active science-learning environment in which they serve as apprentices to university astrophysics professors. (Author/CCM)

  19. High School Textbooks and the American Revolution

    ERIC Educational Resources Information Center

    Seller, Maxine; Trusz, Andrew

    1976-01-01

    In terms of teaching about the American Revolution, this article surveys strengths and weaknesses of representative, frequently used high school history books. It suggests how the most common weaknesses can be corrected. (Author/AV)

  20. Fabrication of seamless electrospun collagen/PLGA conduits whose walls comprise highly longitudinal aligned nanofibers for nerve regeneration.

    PubMed

    Ouyang, Yuanming; Huang, Chen; Zhu, Yi; Fan, Cunyi; Ke, Qinfei

    2013-06-01

    An ideal nerve scaffold should supply structural guidance and trophic support to facilitate nerve regeneration. Aligned electrospun nanofibers have shown considerable promise for the precise guidance of regenerating axons in vitro and in vivo. Therefore, uniaxially aligned three-dimension (3D) nanofiberous scaffolds may allow regenerating axons to traverse large gaps to treat severe nerve injuries. However, the aligned 3D conduit was always rolled by an aligned 2-dimensional (2D) sheet in current fabrication methods, which was inconvenient for transplant due to the discontinuous joint and inconsistent size. We developed a modified one-step electrospinning technique to produce a seamless 3D nanofiberous nerve conduit (NC) with highly longitudinal aligned nanofibers that combines the biocompatibility of natural collagen and the strength of the synthetic polymer poly(lactic-co-glycolic acid) (PLGA). Scanning electron microscopy (SEM) confirmed the parallel alignment of the scaffold fibers. To test the effectiveness of these scaffolds at restoring neuronal connections, they were implanted into adult rats across a 13 mm sciatic nerve defect. Tests of, motor function, nerve conduction, axonal and Schwann cell morphology, and marker expression all revealed that uniaxially aligned seamless 3D electrospun collagen/PLGA NCs were superior to randomly oriented NCs and inferior to autografts for promoting axon regeneration, myelination, action potential propagation, neuromuscular transmission, and functional recovery. These uniaxially aligned seamless 3D electrospun collagen/PLGA nerve guides can also incorporate signaling molecules and additional structural cues to guide nerve growth, and so may be a promising substitute for autogenous nerve grafts.

  1. Especially for High School Teachers

    NASA Astrophysics Data System (ADS)

    Howell, J. Emory

    1998-06-01

    Secondary School Feature Articles * Why Do Alcoholic Beverages Have "Legs"?, by Todd P. Silverstein, p 723. * Audience-Appropriate Analogies: Collision Theory, by Kent W. Piepgrass, p 724. * Using Balls from Different Sports To Model the Variation of Atomic Sizes, by Gabriel Pinto, p 725. * The Convergent Evolution of a Chemistry Project: Using Laboratory Posters as a Platform for Web Page Construction, by Sally Rigeman, p 727. * Process Development in the Teaching Laboratory, by Leonard C. Klein and Susanne M. Dana, p 745.

  2. Chicago High School Redesign Initiative: Schools, Students, and Outcomes. Research Report

    ERIC Educational Resources Information Center

    Sporte, Susan; de la Torre, Marisa

    2010-01-01

    Between 2002 and 2007, the Chicago High School Redesign Initiative (CHSRI) opened 23 small high schools. Implemented in partnership with Chicago Public Schools (CPS), this initiative aimed to provide populations of low-performing students in under-served areas of the city with high-quality, small high schools. These schools were formed (1) by…

  3. Guidelines for preparing high school psychology teachers: course-based and standards-based approaches.

    PubMed

    2013-01-01

    Psychology is one of the most popular elective high school courses. The high school psychology course provides the foundation for students to benefit from psychological perspectives on personal and contemporary issues and learn the rules of evidence and theoretical frameworks of the discipline. The guidelines presented here constitute the second of two reports in this issue of the American Psychologist (January 2013) representing recent American Psychological Association (APA) policies that support high-quality instruction in the teaching of high school psychology. These guidelines, aligned to the standards presented in the preceding report, describe models for the preparation of preservice psychology teachers. The two reports together demonstrate the rigor and competency that should be expected in psychology instruction at the high school level.

  4. Chemical Solution Derived Planarization Layers for Highly Aligned IBAD MgO Templates

    SciTech Connect

    Paranthaman, Mariappan Parans; Aytug, Tolga; Stan, Liliana; Jia, Quanxi; Cantoni, Claudia; Wee, Sung Hun

    2014-01-01

    The main goal of this research is to develop a chemical solution derived planarization layer to fabricate highly aligned IBAD-MgO templates for the development of high temperature superconductor (HTS) based coated conductors. The standard IBAD-MgO template needs an additional electrochemical polishing step of the mechanically polished 50- m-thick Hastelloy C-276 substrates to ensure a flat and smooth surface for subsequent growth of multi-layer buffer architectures, which include: sputtered 80-nm Al2O3; sputtered 7-nm Y2O3; IBAD 10-nm MgO; sputtered 30-nm homo-epi MgO; and sputtered 30-nm LaMnO3 (LMO) layers. We have successfully developed a solution planarization layer that removes the electrochemical polishing step and also acts as a barrier layer. Crack-free, smooth Al2O3 layers were prepared on mechanically polished Hastelloy substrates using a chemical solution process. A nearly 10-15-nm thick Al2O3 layer was formed with each coating and the coating was repeated several times to achieve the desired film thickness with intermediate heat-treatments after each coating. The Al2O3 planarization layer significantly reduced the surface roughness of the substrate. The average surface roughness value, Ra for a starting substrate was 9-10 nm. After 8 coatings of Al2O3 layer, the Ra was reduced to 2 nm. Highly aligned IBAD-MgO layers with out-of-plane and in-plane textures comparable to the standard IBAD-MgO layers were successfully deposited on top of the solution planarization Al2O3 layers with an Y2O3 nucleation layer using a reel-to-reel ion-beam sputtering system. Both homo-epi MgO and LMO layers were subsequently deposited on the IBAD-MgO layers using rf sputtering to complete the buffer stack required for the growth of HTS films. YBa2Cu3O7- (YBCO) films with a thickness of 0.8 m deposited on these IBAD-MgO templates by pulsed laser deposition showed a high self-field critical current density, Jc of 3.04 MA/cm2 at 77 K and 6.05 MA/cm2 at 65 K. These results

  5. Nucleation, Growth, and Alignment of Poly(3-hexylthiophene) Nanofibers for High-Performance OFETs.

    PubMed

    Persson, Nils E; Chu, Ping-Hsun; McBride, Michael; Grover, Martha; Reichmanis, Elsa

    2017-02-24

    Conjugated semiconducting polymers have been the subject of intense study for over two decades with promising advances toward a printable electronics manufacturing ecosystem. These materials will deliver functional electronic devices that are lightweight, flexible, large-area, and cost-effective, with applications ranging from biomedical sensors to solar cells. Synthesis of novel molecules has led to significant improvements in charge carrier mobility, a defining electrical performance metric for many applications. However, the solution processing and thin film deposition of conjugated polymers must also be properly controlled to obtain reproducible device performance. This has led to an abundance of research on the process-structure-property relationships governing the microstructural evolution of the model semicrystalline poly(3-hexylthiophene) (P3HT) as applied to organic field effect transistor (OFET) fabrication. What followed was the production of an expansive body of work on the crystallization, self-assembly, and charge transport behavior of this semiflexible polymer whose strong π-π stacking interactions allow for highly creative methods of structural control, including the modulation of solvent and solution properties, flow-induced crystallization and alignment techniques, structural templating, and solid-state thermal and mechanical processing. This Account relates recent progress in the microstructural control of P3HT thin films through the nucleation, growth, and alignment of P3HT nanofibers. Solution-based nanofiber formation allows one to develop structural order prior to thin film deposition, mitigating the need for intricate deposition processes and enabling the use of batch and continuous chemical processing steps. Fiber growth is framed as a traditional crystallization problem, with the balance between nucleation and growth rates determining the fiber size and ultimately the distribution of grain boundaries in the solid state. Control of

  6. Differentiating science instruction: Success stories of high school science teachers

    NASA Astrophysics Data System (ADS)

    Maeng, Jennifer Lynn Cunningham

    This study investigated the characteristics and practices of high school science teachers who differentiate instruction. Specifically teachers' beliefs about science teaching and student learning and how they planned for and implemented differentiated instruction in their classrooms were explored. Understanding how high school science teachers differentiate instruction fills a gap in the literature. Participants included 7 high school science teachers purposefully selected from 4 different schools located in three school districts in a mid-Atlantic state. Data was collected during the spring of 2010 and fall of 2011 and occurred in two phases. For all 7 participants, data included one one-hour semi-structured interview and field notes from a minimum of four 90-minute classroom observations. Each classroom observation was scored using the validated Differentiated Instruction Implementation Matrix-Modified (DIIM-M), which evaluated participants' proficiency in differentiating instruction. The DIIM-M was analyzed using descriptive statistics and triangulated with field notes. This analysis led to the identification of a single teacher, Diane, for in-depth case study. Case study data included approximately two hours of semi-structured interview responses, 37.5 hours of classroom observations of Diane's Ecology and Biology classes, relevant instructional materials, and other artifacts. This variety of data allowed for triangulation of the evidence. Data were analyzed using a constant comparative approach (Lincoln & Guba, 1985). Results indicated that Diane consistently integrated complex learning profile differentiation strategies; however, she differentiated less frequently for readiness and interest. Technology-enhanced formative assessment played an integral role in planning and implementing lessons differentiated for readiness. Diane's content knowledge, self-efficacy, administrative support, and alignment between beliefs and the philosophy of differentiated

  7. PhyPA: Phylogenetic method with pairwise sequence alignment outperforms likelihood methods in phylogenetics involving highly diverged sequences.

    PubMed

    Xia, Xuhua

    2016-09-01

    While pairwise sequence alignment (PSA) by dynamic programming is guaranteed to generate one of the optimal alignments, multiple sequence alignment (MSA) of highly divergent sequences often results in poorly aligned sequences, plaguing all subsequent phylogenetic analysis. One way to avoid this problem is to use only PSA to reconstruct phylogenetic trees, which can only be done with distance-based methods. I compared the accuracy of this new computational approach (named PhyPA for phylogenetics by pairwise alignment) against the maximum likelihood method using MSA (the ML+MSA approach), based on nucleotide, amino acid and codon sequences simulated with different topologies and tree lengths. I present a surprising discovery that the fast PhyPA method consistently outperforms the slow ML+MSA approach for highly diverged sequences even when all optimization options were turned on for the ML+MSA approach. Only when sequences are not highly diverged (i.e., when a reliable MSA can be obtained) does the ML+MSA approach outperforms PhyPA. The true topologies are always recovered by ML with the true alignment from the simulation. However, with MSA derived from alignment programs such as MAFFT or MUSCLE, the recovered topology consistently has higher likelihood than that for the true topology. Thus, the failure to recover the true topology by the ML+MSA is not because of insufficient search of tree space, but by the distortion of phylogenetic signal by MSA methods. I have implemented in DAMBE PhyPA and two approaches making use of multi-gene data sets to derive phylogenetic support for subtrees equivalent to resampling techniques such as bootstrapping and jackknifing.

  8. Swept confocally-aligned planar excitation (SCAPE) microscopy for high speed volumetric imaging of behaving organisms

    PubMed Central

    Bouchard, Matthew B.; Voleti, Venkatakaushik; Mendes, César S.; Lacefield, Clay; Grueber, Wesley B.; Mann, Richard S.; Bruno, Randy M.; Hillman, Elizabeth M. C.

    2014-01-01

    We report a new 3D microscopy technique that allows volumetric imaging of living samples at ultra-high speeds: Swept, confocally-aligned planar excitation (SCAPE) microscopy. While confocal and two-photon microscopy have revolutionized biomedical research, current implementations are costly, complex and limited in their ability to image 3D volumes at high speeds. Light-sheet microscopy techniques using two-objective, orthogonal illumination and detection require a highly constrained sample geometry, and either physical sample translation or complex synchronization of illumination and detection planes. In contrast, SCAPE microscopy acquires images using an angled, swept light-sheet in a single-objective, en-face geometry. Unique confocal descanning and image rotation optics map this moving plane onto a stationary high-speed camera, permitting completely translationless 3D imaging of intact samples at rates exceeding 20 volumes per second. We demonstrate SCAPE microscopy by imaging spontaneous neuronal firing in the intact brain of awake behaving mice, as well as freely moving transgenic Drosophila larvae. PMID:25663846

  9. Swept confocally-aligned planar excitation (SCAPE) microscopy for high speed volumetric imaging of behaving organisms.

    PubMed

    Bouchard, Matthew B; Voleti, Venkatakaushik; Mendes, César S; Lacefield, Clay; Grueber, Wesley B; Mann, Richard S; Bruno, Randy M; Hillman, Elizabeth M C

    2015-02-01

    We report a new 3D microscopy technique that allows volumetric imaging of living samples at ultra-high speeds: Swept, confocally-aligned planar excitation (SCAPE) microscopy. While confocal and two-photon microscopy have revolutionized biomedical research, current implementations are costly, complex and limited in their ability to image 3D volumes at high speeds. Light-sheet microscopy techniques using two-objective, orthogonal illumination and detection require a highly constrained sample geometry, and either physical sample translation or complex synchronization of illumination and detection planes. In contrast, SCAPE microscopy acquires images using an angled, swept light-sheet in a single-objective, en-face geometry. Unique confocal descanning and image rotation optics map this moving plane onto a stationary high-speed camera, permitting completely translationless 3D imaging of intact samples at rates exceeding 20 volumes per second. We demonstrate SCAPE microscopy by imaging spontaneous neuronal firing in the intact brain of awake behaving mice, as well as freely moving transgenic Drosophila larvae.

  10. Highly Aligned Poly(vinylidene fluoride-co-hexafluoro propylene) Nanofibers via Electrospinning Technique.

    PubMed

    Han, Tae-Hwan; Nirmala, R; Kim, Tae Woo; Navamathavan, R; Kim, Hak Yong; Park, Soo Jin

    2016-01-01

    We report on the simple way of obtaining aligned poly(vinylidiene fluoride-co-hexafluoropropylene) (PVDF-HFP) nanofibers by electrospinning process. The collector drum rotation speed was adjusted to prepare well aligned PVDF-HFP nanofibers. The degree of alignment and the orientation of PVDF-HFP nanofibers can be significantly altered by varying the speed of collector drum rotation. The resultant PVDF-HFP nanofibers were systematically characterized. From the scanning electron microscopy data, it was found that the electrospun PVDF-HFP nanofibers were formed with well-aligned nature. The X-ray diffraction results revealed that the electrospun PVDF-HFP nanofibers with β-phase can be formed by the increased collector drum rotation speed. Overall, the collector rotation speed during the electrospinning process plays an important role in obtaining well-aligned and improved characteristics of PVDF-HFP nanofibers.

  11. High School Dropouts and Sexually Transmitted Infections

    PubMed Central

    Anderson, D. Mark; Pörtner, Claus C.

    2015-01-01

    People who drop out of high school fare worse in many aspects of life. We analyze the relationship between dropping out of high school and the probability of contracting a sexually transmitted infection (STI). Previous studies on the relationship between dropout status and sexual outcomes have not empirically addressed unobserved heterogeneity at the individual level. Using fixed effects estimators, we find evidence supporting a positive relationship between dropping out of high school and the risk of contracting an STI for females. Furthermore, we present evidence that illustrates differences between the romantic partners of dropouts versus enrolled students. These differences suggest that female dropouts may be more susceptible to contracting STIs because they partner with significantly different types of people than non-dropouts. Our results point to a previously undocumented benefit of encouraging those at risk of dropping out to stay in school longer. PMID:25705058

  12. Castro Valley High School's Solar Panels

    NASA Astrophysics Data System (ADS)

    Lew, A.; Ham, S.; Shin, Y.; Yang, W.; Lam, J.

    2014-12-01

    Solar panels are photovoltaic cells that are designed to convert the sun's kinetic energy to generate usable energy in the form of electricity. Castro Valley High School has tried to offset the cost of electricity by installing solar panels, costing the district approximately 3.29 million dollars, but have been installed incorrectly and are not operating at peak efficency. By using trigonometry we deduced that Castro Valley High School's south facing solar panels were at an incline of 10o and that the east and west facing solar panels are at an incline of 5o. By taking the averages of the optimum angles for the months of September through May, roughly when school is in session, we found that the optimum angle for south facing solar panels should be roughly 46o. This shows that Castro Valley High School has not used it's budget to its full potential due to the fact that the solar panels were haphazardly installed.

  13. Making Decisions: College Credits Earned in High School.

    ERIC Educational Resources Information Center

    Lambert, Leo M.; Mercurio, Joseph A.

    1986-01-01

    Discusses Syracuse University's Project Advance, which offers college courses for credit to high school students. Guidelines for credit transfer and cooperative college high school programs are given. (BL)

  14. Promoting Engineering Education among High School and Middle School Students

    ERIC Educational Resources Information Center

    Goonatilake, Rohitha; Bachnak, Rafic A.

    2012-01-01

    Recent decline of students pursuing engineering degree programs is a great concern for many higher education authorities including Federal and State governments. Existing programs in high schools have not yet produced the desired results. Consequently, a number of initiatives to remedy this situation have been proposed and implemented. One such…

  15. High School Science Technology Additions, Midland Public Schools.

    ERIC Educational Resources Information Center

    Design Cost Data, 2001

    2001-01-01

    Discusses design goals, space requirements, and need for mobile furniture and "imagination stations" at Michigan's Midland Public High School science technology addition. Describes the architectural design, costs, and specifications. Includes floor plans, general description, photos and a list of consultants, manufacturers, and suppliers…

  16. Antecedents of Teachers' Educational Beliefs about Mathematics and Mathematical Knowledge for Teaching among In-Service Teachers in High Poverty Urban Schools

    ERIC Educational Resources Information Center

    Corkin, Danya M.; Ekmekci, Adem; Papakonstantinou, Anne

    2015-01-01

    This paper examines the antecedents of three types of educational beliefs about mathematics among 151 teachers predominantly working in high poverty schools. Studies across various countries have found that teachers in high poverty schools are less likely to enact instructional approaches that align with mathematics reform standards set by…

  17. Factors Influencing Teacher Job Satisfaction and Their Alignment with Current District Practices in a Rural School District

    ERIC Educational Resources Information Center

    Wallace, Taneal Marie

    2010-01-01

    School districts' decisions across the country are influencing the satisfaction level of teachers, in both positive and negative ways. With statistics reporting as high as fifty percent of teachers leaving the profession in the first five years of experience (Ingersoll, 2003), determining the reasons for teacher dissatisfaction are important in…

  18. High sensitivity Schottky junction diode based on monolithically grown aligned polypyrrole nanofibers: Broad range detection of m-dihydroxybenzene.

    PubMed

    Ameen, Sadia; Akhtar, M Shaheer; Seo, Hyung-Kee; Shin, Hyung Shik

    2015-07-30

    Aligned p-type polypyrrole (PPy) nanofibers (NFs) thin film was grown on n-type silicon (100) substrate by an electrochemical technique to fabricate Schottky junction diode for the efficient detection of m-dihydroxybenzene chemical. The highly dense and well aligned PPy NFs with the average diameter (∼150-200 nm) were grown on n-type Si substrate. The formation of aligned PPy NFs was confirmed by elucidating the structural, compositional and the optical properties. The electrochemical behavior of the fabricated Pt/p-aligned PPy NFs/n-silicon Schottky junction diode was evaluated by cyclovoltametry (CV) and current (I)-voltage (V) measurements with the variation of m-dihydroxybenzene concentration in the phosphate buffer solution (PBS). The fabricated Pt/p-aligned PPy NFs/n-silicon Schottky junction diode exhibited the rectifying behavior of I-V curve with the addition of m-dihydroxybenzene chemical, while a weak rectifying I-V behavior was observed without m-dihydroxybenzene chemical. This non-linear I-V behavior suggested the formation of Schottky barrier at the interface of Pt layer and p-aligned PPy NFs/n-silicon thin film layer. By analyzing the I-V characteristics, the fabricated Pt/p-aligned PPy NFs/n-silicon Schottky junction diode displayed reasonably high sensitivity ∼23.67 μAmM(-1)cm(-2), good detection limit of ∼1.51 mM with correlation coefficient (R) of ∼0.9966 and short response time (10 s).

  19. Jet-CO alignments in the environments high-z radio galaxies

    NASA Astrophysics Data System (ADS)

    Emonts, Bjorn

    2017-03-01

    In the outskirts of massive high-redshift radio galaxies, powerful radio-jets often interact with ambient warm Lyα-emitting gas. We present the discovery of luminous reservoirs of cold molecular gas in these environments, based on CO(1-0) observations with the Australia Telescope Compact Array. The CO-emission is aligned with the radio jets, and found tens of kpc outside the host galaxy. These molecular gas reservoirs have CO luminosities in the range of those found in submm-galaxies (L'CO ~ 4-9 × 1010 K km/s pc2), but they lack any near-infrared counterpart in deep Spitzer imaging. These results suggest that jet-triggered feedback takes place in the circum-galactic environment of high-z radio galaxies. We prefer the interpretation that the CO-emitting gas is formed when the propagating jets enrich, shock and cool pre-existing dusty halo gas. We further argue that sensitive low-surface-brightness CO observations, using radio interferometers in very compact array-configurations, are essential to study the role of the cold molecular medium in the outskirts of massive high-z galaxies.

  20. Effect of residual gases in high vacuum on the energy-level alignment at noble metal/organic interfaces

    SciTech Connect

    Helander, M. G.; Wang, Z. B.; Lu, Z. H.

    2011-10-31

    The energy-level alignment at metal/organic interfaces has traditionally been studied using ultraviolet photoelectron spectroscopy (UPS) in ultra-high vacuum (UHV). However, since most devices are fabricated in high vacuum (HV), these studies do not accurately reflect the interfaces in real devices. We demonstrate, using UPS measurements of samples prepared in HV and UHV and current-voltage measurements of devices prepared in HV, that the small amounts of residual gases that are adsorbed on the surface of clean Cu, Ag, and Au (i.e., the noble metals) in HV can significantly alter the energy-level alignment at metal/organic interfaces.

  1. Communities, Students, Schools, and School Crime: A Confirmatory Study of Crime in U.S. High Schools

    ERIC Educational Resources Information Center

    Chen, Greg

    2008-01-01

    This study investigates how community characteristics, student background, school climate, and zero-tolerance policies interact to affect school crime. The study articulates and fits a school crime model to 712 high schools participating in the 2000 School Survey on Crime and Safety, confirming that school location and student socioeconomic status…

  2. Graduation Coaching in High-Need Urban, High Schools

    ERIC Educational Resources Information Center

    Lacefield, Warren E.; Zeller, Pamela J.; Van Kannel-Ray, Nancy

    2010-01-01

    This study documents the impact of placing graduation coaches as a GEAR UP intervention in urban high schools. The overall goal was improvement of students' academic performance, particularly for students not passing core courses. This longitudinal study began with data collection in feeder middle schools where results indicated improved student…

  3. Native American Curriculum: Primary, Intermediate, Junior High, High School.

    ERIC Educational Resources Information Center

    Fox, Sandra J.

    These four books provide curricular materials for the study of North Dakota Indians at primary through high school levels. Issued on the occasion of the North Dakota centennial, they provide information about Indians that can be integrated into the school curriculum. The books at all levels begin with study of the centennial logo, pictured on the…

  4. Highlighting High Performance: Whitman Hanson Regional High School; Whitman, Massachusetts

    SciTech Connect

    Not Available

    2006-06-01

    This brochure describes the key high-performance building features of the Whitman-Hanson Regional High School. The brochure was paid for by the Massachusetts Technology Collaborative as part of their Green Schools Initiative. High-performance features described are daylighting and energy-efficient lighting, indoor air quality, solar and wind energy, building envelope, heating and cooling systems, water conservation, and acoustics. Energy cost savings are also discussed.

  5. Some Health Effects of Implementing School Nursing in a Norwegian High School: A Controlled Study

    ERIC Educational Resources Information Center

    Svebak, Sven; Jensen, Eva Naper; Gotestam, K. Gunnar

    2008-01-01

    The effects of a school nursing service on health complaints and mood were investigated in a Norwegian high school. The school nursing service was delivered to students in 1 high school, and students in a comparable high school served as the comparison group. There were 41 students in the treatment group and 63 in the comparison group. All…

  6. Going to Scale with New School Designs: Reinventing High School. The Series on School Reform

    ERIC Educational Resources Information Center

    McDonald, Joseph P.; Klein, Emily J.; Riordan, Meg

    2009-01-01

    Americans have been trying to redesign the American high school since it was first invented. One of the latest approaches--funded by the Bill and Melinda Gates Foundation--is to find inventive high school designs that work well in one location and can be replicated in others. The authors of this book followed a design team from Big Picture…

  7. Personalizing the High School Experience for Each Student

    ERIC Educational Resources Information Center

    Dimartino, Joseph; Clarke, John H.

    2008-01-01

    Discover the six most pervasive problem areas in high school education today, and learn what schools are doing to connect with students, personalize learning, differentiate instruction, and make high school curriculum more relevant.

  8. Multimodal Behavior Therapy: Case Study of a High School Student.

    ERIC Educational Resources Information Center

    Seligman, Linda

    1981-01-01

    A case study of a high school student concerned with weight problems illustrates multimodal behavior therapy and its use in a high school setting. Multimodal therapy allows the school counselor to maximize referral sources while emphasizing growth and actualization. (JAC)

  9. Who's Teaching What in High School Physics?

    ERIC Educational Resources Information Center

    White, Susan; Tyler, John

    2015-01-01

    During the 2012-13 school year, approximately 27,000 teachers taught at least one physics course in a U.S. high school. About one-third of those teachers have earned a degree in physics or physics education; the vast majority of the others have earned degrees in a variety of other science fields. About 53,000 physics classes were taught, ranging…

  10. Bioinspired modification of h-BN for high thermal conductive composite films with aligned structure.

    PubMed

    Shen, Heng; Guo, Jing; Wang, Hao; Zhao, Ning; Xu, Jian

    2015-03-18

    With the development of microelectronic technology, the demand of insulating electronic encapsulation materials with high thermal conductivity is ever growing and much attractive. Surface modification of chemical inert h-BN is yet a distressing issue which hinders its applications in thermal conductive composites. Here, dopamine chemistry has been used to achieve the facile surface modification of h-BN microplatelets by forming a polydopamine (PDA) shell on its surface. The successful and effective preparation of h-BN@PDA microplatelets has been confirmed by SEM, EDS, TEM, Raman spectroscopy, and TGA investigations. The PDA coating increases the dispersibility of the filler and enhances its interaction with PVA matrix as well. Based on the combination of surface modification and doctor blading, composite films with aligned h-BN@PDA are fabricated. The oriented fillers result in much higher in-plane thermal conductivities than the films with disordered structures produced by casting or using the pristine h-BN. The thermal conductivity is as high as 5.4 W m(-1) K(-1) at 10 vol % h-BN@PDA loading. The procedure is eco-friendly, easy handling, and suitable for the practical application in large scale.

  11. Case Studies of Schools Implementing Early Elementary Strategies: Preschool through Third Grade Alignment and Differentiated Instruction

    ERIC Educational Resources Information Center

    Manship, Karen; Farber, Jonathan; Smith, Claire; Drummond, Katie

    2016-01-01

    Participation in high-quality preschool can improve academic, behavioral, social-emotional, and cognitive outcomes for students of varying backgrounds, including students from disadvantaged backgrounds (e.g., Andrews, Jargowsky, and Kuhne 2012; Barnett 2008; Camilli et al. 2010; Karoly and Bigelow 2005; Reynolds et al. 2007). However, some studies…

  12. Freedom of Expression for High School Journalists: A Case Study of Selected North Carolina Public Schools.

    ERIC Educational Resources Information Center

    Phillips, Kay D.

    A study examined the freedom of the high school press in North Carolina to determine whether publication guidelines should be in place, and if so, what those guidelines should contain. High school newspaper advisors, high school principals, and high school newspaper editors from large and small, urban and rural, eastern and western high schools…

  13. Gait analysis by high school students

    NASA Astrophysics Data System (ADS)

    Heck, André; van Dongen, Caroline

    2008-05-01

    Human walking is a complicated motion. Movement scientists have developed various research methods to study gait. This article describes how a high school student collected and analysed high quality gait data in much the same way that movement scientists do, via the recording and measurement of motions with a video analysis tool and via electromyography, i.e., the measurement of muscle activity. Physics, biology, and mathematics come together in this practical investigation work at a rather high level. It shows that science learning at school can resemble science practice in research laboratories, provided that students have adequate tools.

  14. Highly aligned vertical GaN nanowires using submonolayer metal catalysts

    DOEpatents

    Wang, George T.; Li, Qiming; Creighton, J. Randall

    2010-06-29

    A method for forming vertically oriented, crystallographically aligned nanowires (nanocolumns) using monolayer or submonolayer quantities of metal atoms to form uniformly sized metal islands that serve as catalysts for MOCVD growth of Group III nitride nanowires.

  15. Teacher Characteristics and School-Based Professional Development in Inclusive STEM-focused High Schools: A Cross-case Analysis

    NASA Astrophysics Data System (ADS)

    Spillane, Nancy Kay

    Within successful Inclusive Science, Technology, Engineering, and Mathematics (STEM)-focused High Schools (ISHSs), it is not only the students who are learning. Teachers, with diverse backgrounds, training, and experience, share and develop their knowledge through rich, embedded professional development to continuously shape their craft, improve their teaching, and support student success. This study of four exemplars of ISHSs (identified by experts in STEM education as highly successful in preparing students underrepresented in STEM for STEM majors in college and future STEM careers) provides a rich description of the relationships among the characteristics of STEM teachers, their professional development, and the school cultures that allow teachers to develop professionally and serve the needs of students. By providing a framework for the development of teaching staffs in ISHSs and contributing to the better understanding of STEM teaching in any school, this study offers valuable insight, implications, and information for states and school districts as they begin planning improvements to STEM education programs. A thorough examination of an existing data set that included site visits to four ISHSs along with pre- and post-visit data, provided the resource for this multiple case study with cross-case analysis of the teachers and their teacher professional development experiences. Administrators in these ISHSs had the autonomy to hire teachers with strong content backgrounds, philosophical alignment with the school missions, and a willingness to work collaboratively toward achieving the schools' goals. Ongoing teacher professional development began before school started and continued throughout the school day and year through intense and sustained, formal and informal, active learning experiences. Flexible professional development systems varied, but aligned with targeted school reforms and teacher and student needs. Importantly, collaborative teacher learning

  16. Image alignment

    DOEpatents

    Dowell, Larry Jonathan

    2014-04-22

    Disclosed is a method and device for aligning at least two digital images. An embodiment may use frequency-domain transforms of small tiles created from each image to identify substantially similar, "distinguishing" features within each of the images, and then align the images together based on the location of the distinguishing features. To accomplish this, an embodiment may create equal sized tile sub-images for each image. A "key" for each tile may be created by performing a frequency-domain transform calculation on each tile. A information-distance difference between each possible pair of tiles on each image may be calculated to identify distinguishing features. From analysis of the information-distance differences of the pairs of tiles, a subset of tiles with high discrimination metrics in relation to other tiles may be located for each image. The subset of distinguishing tiles for each image may then be compared to locate tiles with substantially similar keys and/or information-distance metrics to other tiles of other images. Once similar tiles are located for each image, the images may be aligned in relation to the identified similar tiles.

  17. Academic Supports Provided for Struggling High School Students. Evaluation Brief

    ERIC Educational Resources Information Center

    McGaughey, Trisha A.; Wade, Julie H.; Zhao, Huafang

    2013-01-01

    This brief describes an evaluation of academic intervention supports available to high school students in Montgomery County Public Schools (MCPS) during the 2012-2013 school year. A website review identified information about academic supports available to students or parents within each high school's web pages. A survey of school staff gathered…

  18. A Survey of Factors Influencing High School Start Times

    ERIC Educational Resources Information Center

    Wolfson, Amy R.; Carskadon, Mary A.

    2005-01-01

    The present study surveyed high school personnel regarding high school start times, factors influencing school start times, and decision making around school schedules. Surveys were analyzed from 345 secondary schools selected at random from the National Center for Educational Statistics database. Factors affecting reported start times included…

  19. Developing Student Ownership and Responsibility in High Schools. Practitioner Brief

    ERIC Educational Resources Information Center

    National Center on Scaling Up Effective Schools, 2014

    2014-01-01

    The National Center on Scaling Up Effective Schools (NCSU) spent the 2011-12 school year conducting intensive case studies of four Forth Worth, Texas high schools to understand what differentiates higher and lower performing schools. It was found that high schools can address gaps in student achievement by developing policies and practices that…

  20. Guide to NYC Small High Schools, 2005-2006

    ERIC Educational Resources Information Center

    New Visions for Public Schools, 2005

    2005-01-01

    New Visions for Public Schools has put together "The New York City Guide to Small High Schools" to describe new opportunities in the public high school system: over 200 small secondary schools created over the last five years. These small schools are part of the Department of Education's efforts to create more choices for thousands of…

  1. SparkBWA: Speeding Up the Alignment of High-Throughput DNA Sequencing Data

    PubMed Central

    2016-01-01

    Next-generation sequencing (NGS) technologies have led to a huge amount of genomic data that need to be analyzed and interpreted. This fact has a huge impact on the DNA sequence alignment process, which nowadays requires the mapping of billions of small DNA sequences onto a reference genome. In this way, sequence alignment remains the most time-consuming stage in the sequence analysis workflow. To deal with this issue, state of the art aligners take advantage of parallelization strategies. However, the existent solutions show limited scalability and have a complex implementation. In this work we introduce SparkBWA, a new tool that exploits the capabilities of a big data technology as Spark to boost the performance of one of the most widely adopted aligner, the Burrows-Wheeler Aligner (BWA). The design of SparkBWA uses two independent software layers in such a way that no modifications to the original BWA source code are required, which assures its compatibility with any BWA version (future or legacy). SparkBWA is evaluated in different scenarios showing noticeable results in terms of performance and scalability. A comparison to other parallel BWA-based aligners validates the benefits of our approach. Finally, an intuitive and flexible API is provided to NGS professionals in order to facilitate the acceptance and adoption of the new tool. The source code of the software described in this paper is publicly available at https://github.com/citiususc/SparkBWA, with a GPL3 license. PMID:27182962

  2. Girls Disengage from High School Science

    ERIC Educational Resources Information Center

    Education Digest: Essential Readings Condensed for Quick Review, 2010

    2010-01-01

    High school girls are bored, disengaged, and stressed in science classes, according to preliminary results of a study led by Northern Illinois University researchers Jennifer Schmidt and M. Cecil Smith. The two professors in the College of Education's Department of Leadership, Educational Psychology, and Foundations studied 244 high school…

  3. High Schools at the Tipping Point

    ERIC Educational Resources Information Center

    Wise, Bob

    2008-01-01

    The U. S. high school system is in crisis, Wise argues. More than 1 million students drop out every year, significant numbers of college freshmen require remedial courses to handle college work, and employers consistently express disappointment in the skills of graduates. The high dropout rate and students' lack of preparedness carries…

  4. Design Tech High School: d.tech

    ERIC Educational Resources Information Center

    EDUCAUSE, 2015

    2015-01-01

    A Bay Area charter high school, d.tech develops "innovation-ready" students by combining content knowledge with the design thinking process while fostering a sense of autonomy and purpose. The academic model is grounded in self-paced learning through a flex schedule, high standards, and design thinking through a four-year design…

  5. Successful Magnet High Schools. Innovations in Education

    ERIC Educational Resources Information Center

    US Department of Education, 2008

    2008-01-01

    Lack of relevant course work is a top reason why high school students drop out, and studies have shown that low-income and minority students are less likely to be enrolled in college preparatory curricula than their more affluent peers. In today's world, it is critical to ensure that all students have access to a rigorous, high-quality education…

  6. Gait Analysis by High School Students

    ERIC Educational Resources Information Center

    Heck, Andre; van Dongen, Caroline

    2008-01-01

    Human walking is a complicated motion. Movement scientists have developed various research methods to study gait. This article describes how a high school student collected and analysed high quality gait data in much the same way that movement scientists do, via the recording and measurement of motions with a video analysis tool and via…

  7. Moving High School Students toward Physical Literacy

    ERIC Educational Resources Information Center

    MacDonald, Lynn Couturier

    2015-01-01

    This article addresses teaching for skill and knowledge competency in high school based on the National Standards and grade-level outcomes. The outcomes guide teachers away from a curriculum that emphasizes competition through team sports, which appeals to just the highly-skilled and competitive students, toward one that is inclusive of all skill…

  8. A Comparative Study between Online Charter High Schools and Traditional High Schools in California

    ERIC Educational Resources Information Center

    Darrow, Robert Worthington

    2010-01-01

    The percentage of students who graduate from high school within four years in the United States has remained between 65 and 70% since the late 1960s. Despite various educational reforms, the number of students who are at-risk of dropping out of high school has remained constant, increasing in some years and decreasing in other years. Two…

  9. From High School Users College Students Grow: Providing Academic Library Research Opportunities to High School Students.

    ERIC Educational Resources Information Center

    Pearson, Debra; McNeil, Beth

    2002-01-01

    Describes the University of Nebraska-Lincoln University Libraries' high school users program, which has grown from a small operation into a well-developed program. The resources of a large academic research library are made available to students so they may complete their high school coursework with a wider range of resources, and possibly, gain…

  10. High School Reform and High School Afterschool: A Common Purpose. Afterschool Alert. Issue Brief No. 23

    ERIC Educational Resources Information Center

    Afterschool Alliance, 2005

    2005-01-01

    High school students and those who try to educate them have a tall order to fill. High schools must help create the workforce of the future by turning out graduates who have the 21st century skills that colleges and employers demand, while overcoming the achievement gap that exists for poor and minority students and fighting social pressures such…

  11. High School Roundtable: NCEA's Jean Rutherford Discusses America's High Schools at ECS

    ERIC Educational Resources Information Center

    National Center for Educational Accountability, 2005

    2005-01-01

    Governors and state and local education officials assumed that raising student achievement in the elementary and middle grades would solve the problems with high schools--but it hasn't. Why? Good information is the basis for successful improvement, and high school reform lacks accurate information about what students are to learn and about how…

  12. After Installation: Ubiquitous Computing and High School Science in Three Experienced, High-Technology Schools

    ERIC Educational Resources Information Center

    Drayton, Brian; Falk, Joni K.; Stroud, Rena; Hobbs, Kathryn; Hammerman, James

    2010-01-01

    There are few studies of the impact of ubiquitous computing on high school science, and the majority of studies of ubiquitous computing report only on the early stages of implementation. The present study presents data on 3 high schools with carefully elaborated ubiquitous computing systems that have gone through at least one "obsolescence cycle"…

  13. Yearbook Fundamentals for High Schools, Junior High Schools, Colleges/Universities.

    ERIC Educational Resources Information Center

    Savedge, Charles E.; Click, J. William

    This handbook presents the 1973 Columbia Scholastic Press Association principles for evaluating the quality of junior high school, high school, college, and university yearbooks. The handbook includes a copy of the CSPA scorebook, a discussion of major concepts in the writing and production of contemporary yearbooks, and discussions of the…

  14. Who Drops Out of High School? Findings from High School and Beyond. Contractor Report.

    ERIC Educational Resources Information Center

    Barro, Stephen M.; Kolstad, Andrew

    This document contains the final report on a study of factors associated with dropping out of high school. The analyses presented are based on data from the initial and first follow-up rounds of the High School and Beyond survey of the sophomore class of 1980. The introductory chapter discusses the background of the dropout problem and influences…

  15. Continuous high-yield production of vertically aligned carbon nanotubes on 2D and 3D substrates.

    PubMed

    Guzmán de Villoria, Roberto; Hart, A John; Wardle, Brian L

    2011-06-28

    Vertically aligned carbon nanotubes (VACNTs) have certain advantages over bulk CNT powders and randomly oriented CNT mats for applications in flexible electronic devices, filtration membranes, biosensors and multifunctional aerospace materials. Here, a machine and a process to synthesize VACNTs in a continuous manner are presented showing uniform growth on 2D and 3D substrates, including alumina fibers, silicon wafer pieces, and stainless steel foils. Aligned multiwalled carbon nanotubes (MWNT) are synthesized at substrate feed rates of up to 6.8 cm/min, and the CNTs reach up to 60 μm in length depending on residence time in the reactor. In addition to the aligned morphology indicative of high yield growth, transmission electron microscopy and Raman spectroscopy reveal that the CNTs are of comparable quality to CNTs grown via a similar batch process. A significant reduction in time, reaction products, gases, and energy is demonstrated relative to batch processing, paving the way for industrial production of VACNTs.

  16. Highly efficient growth of vertically aligned carbon nanotubes on Fe-Ni based metal alloy foils for supercapacitors

    NASA Astrophysics Data System (ADS)

    Amalina Raja Seman, Raja Noor; Asyadi Azam, Mohd; Ambri Mohamed, Mohd

    2016-12-01

    Supercapacitors are highly promising energy devices with superior charge storage performance and a long lifecycle. Construction of the supercapacitor cell, especially electrode fabrication, is critical to ensure good performance in applications. This work demonstrates direct growth of vertically aligned carbon nanotubes (CNTs) on Fe-Ni based metal alloy foils, namely SUS 310S, Inconel 600 and YEF 50, and their use in symmetric vertically aligned CNT supercapacitor electrodes. Alumina and cobalt thin film catalysts were deposited onto the foils, and then CNT growth was performed using alcohol catalytic chemical vapour deposition. By this method, vertically aligned CNTs were successfully grown and used directly as a binder-free supercapacitor electrode to deliver excellent electrochemical performance. The device showed relatively good specific capacitance, a superior rate capability and excellent cycle stability, maintaining about 96% capacitance up to 1000 cycles.

  17. High-precision correlative fluorescence and electron cryo microscopy using two independent alignment markers☆

    PubMed Central

    Schellenberger, Pascale; Kaufmann, Rainer; Siebert, C. Alistair; Hagen, Christoph; Wodrich, Harald; Grünewald, Kay

    2014-01-01

    Correlative light and electron microscopy (CLEM) is an emerging technique which combines functional information provided by fluorescence microscopy (FM) with the high-resolution structural information of electron microscopy (EM). So far, correlative cryo microscopy of frozen-hydrated samples has not reached better than micrometre range accuracy. Here, a method is presented that enables the correlation between fluorescently tagged proteins and electron cryo tomography (cryoET) data with nanometre range precision. Specifically, thin areas of vitrified whole cells are examined by correlative fluorescence cryo microscopy (cryoFM) and cryoET. Novel aspects of the presented cryoCLEM workflow not only include the implementation of two independent electron dense fluorescent markers to improve the precision of the alignment, but also the ability of obtaining an estimate of the correlation accuracy for each individual object of interest. The correlative workflow from plunge-freezing to cryoET is detailed step-by-step for the example of locating fluorescence-labelled adenovirus particles trafficking inside a cell. PMID:24262358

  18. Achievement of a high-mobility FET with a cloud-aligned composite oxide semiconductor

    NASA Astrophysics Data System (ADS)

    Yamazaki, Shunpei; Shima, Yukinori; Hosaka, Yasuharu; Okazaki, Kenichi; Koezuka, Junichi

    2016-11-01

    We have recently discovered that films of a widely used In-Ga-Zn oxide (IGZO) with \\text{In}:\\text{Ga}:\\text{Zn} = 1:1:1 have different material composition states when sputter-deposited under different conditions using the same polycrystalline IGZO target. Significant improvements in on-state current and mobility (as high as 40 cm2·V-1·s-1) are obtained. The results of local composition analysis indicate that the deposited film is not composed of any known homogeneous IGZO compound and that the components of this film are separated into two types of nanoparticle regions: one type is composed mainly of GaO x and GaZnO x , which contribute to on/off (switching) characteristics, and the other is composed mainly of InO x and InZnO x , which contribute to on-state characteristics. These regions constitute a new type of oxide semiconductor (OS) film. The nanoparticles with a blurry boundary extend like a cloud, probably complementing one another. We consider that this OS film has a novel composition, which can be described as a “cloud-aligned composite OS” (CAC-OS).

  19. High performance piezoelectric devices based on aligned arrays of nanofibers of poly(vinylidenefluoride-co-trifluoroethylene).

    PubMed

    Persano, Luana; Dagdeviren, Canan; Su, Yewang; Zhang, Yihui; Girardo, Salvatore; Pisignano, Dario; Huang, Yonggang; Rogers, John A

    2013-01-01

    Multifunctional capability, flexible design, rugged lightweight construction and self-powered operation are desired attributes for electronics that directly interface with the human body or with advanced robotic systems. For these applications, piezoelectric materials, in forms that offer the ability to bend and stretch, are attractive for pressure/force sensors and mechanical energy harvesters. Here, we introduce a large area, flexible piezoelectric material that consists of sheets of electrospun fibres of the polymer poly[(vinylidenefluoride-co-trifluoroethylene]. The flow and mechanical conditions associated with the spinning process yield free-standing, three-dimensional architectures of aligned arrangements of such fibres, in which the polymer chains adopt strongly preferential orientations. The resulting material offers exceptional piezoelectric characteristics, to enable ultra-high sensitivity for measuring pressure, even at exceptionally small values (0.1 Pa). Quantitative analysis provides detailed insights into the pressure sensing mechanisms, and establishes engineering design rules. Potential applications range from self-powered micro-mechanical elements, to self-balancing robots and sensitive impact detectors.

  20. High performance piezoelectric devices based on aligned arrays of nanofibers of poly(vinylidenefluoride-co-trifluoroethylene)

    NASA Astrophysics Data System (ADS)

    Persano, Luana; Dagdeviren, Canan; Su, Yewang; Zhang, Yihui; Girardo, Salvatore; Pisignano, Dario; Huang, Yonggang; Rogers, John A.

    2013-03-01

    Multifunctional capability, flexible design, rugged lightweight construction and self-powered operation are desired attributes for electronics that directly interface with the human body or with advanced robotic systems. For these applications, piezoelectric materials, in forms that offer the ability to bend and stretch, are attractive for pressure/force sensors and mechanical energy harvesters. Here, we introduce a large area, flexible piezoelectric material that consists of sheets of electrospun fibres of the polymer poly[(vinylidenefluoride-co-trifluoroethylene]. The flow and mechanical conditions associated with the spinning process yield free-standing, three-dimensional architectures of aligned arrangements of such fibres, in which the polymer chains adopt strongly preferential orientations. The resulting material offers exceptional piezoelectric characteristics, to enable ultra-high sensitivity for measuring pressure, even at exceptionally small values (0.1 Pa). Quantitative analysis provides detailed insights into the pressure sensing mechanisms, and establishes engineering design rules. Potential applications range from self-powered micro-mechanical elements, to self-balancing robots and sensitive impact detectors.

  1. The energy-band alignment at molybdenum disulphide and high-k dielectrics interfaces

    SciTech Connect

    Tao, Junguang; Chai, J. W.; Zhang, Z.; Pan, J. S.; Wang, S. J.

    2014-06-09

    Energy-band alignments for molybdenum disulphide (MoS{sub 2}) films on high-k dielectric oxides have been studied using photoemission spectroscopy. The valence band offset (VBO) at monolayer MoS{sub 2}/Al{sub 2}O{sub 3} (ZrO{sub 2}) interface was measured to be 3.31 eV (2.76 eV), while the conduction-band offset (CBO) was 3.56 eV (1.22 eV). For bulk MoS{sub 2}/Al{sub 2}O{sub 3} interface, both VBO and CBO increase by ∼0.3 eV, due to the upwards shift of Mo 4d{sub z{sup 2}} band. The symmetric change of VBO and CBO implies Fermi level pinning by interfacial states. Our finding ensures the practical application of both p-type and n-type MoS{sub 2} based complementary metal-oxide semiconductor and other transistor devices using Al{sub 2}O{sub 3} and ZrO{sub 2} as gate materials.

  2. Dynamics of capillary infiltration of liquids into a highly aligned multi-walled carbon nanotube film

    PubMed Central

    Walczak, Krzysztof Z; Koziol, Krzysztof K K

    2011-01-01

    Summary The physical compatibility of a highly aligned carbon nanotube (HACNT) film with liquids was established using a fast and convenient experimental protocol. Two parameters were found to be decisive for the infiltration process. For a given density of nanotube packing, the thermodynamics of the infiltration process (wettability) were described by the contact angle between the nanotube wall and a liquid meniscus (θ). Once the wettability criterion (θ < 90°) was met, the HACNT film (of free volume equal to 91%) was penetrated gradually by the liquid in a rate that can be linearly correlated to dynamic viscosity of the liquid (η). The experimental results follow the classical theory of capillarity for a steady process (Lucas–Washburn law), where the nanoscale capillary force, here supported by gravity, is compensated by viscous drag. This most general theory of capillarity can be applied in a prediction of both wettability of HACNT films and the dynamics of capillary rise in the intertube space in various technological applications. PMID:21977444

  3. Highly Anisotropic Adhesive Film Made from Upside-Down, Flat, and Uniform Vertically Aligned CNTs.

    PubMed

    Hong, Sanghyun; Lundstrom, Troy; Ghosh, Ranajay; Abdi, Hamed; Hao, Ji; Jeoung, Sun Kyoung; Su, Paul; Suhr, Jonghwan; Vaziri, Ashkan; Jalili, Nader; Jung, Yung Joon

    2016-12-14

    We have created a multifunctional dry adhesive film with transferred vertically aligned carbon nanotubes (VA-CNTs). This unique VA-CNT film was fabricated by a multistep transfer process, converting the flat and uniform bottom of VA-CNTs grown on atomically flat silicon wafer substrates into the top surface of an adhesive layer. Unlike as-grown VA-CNTs, which have a nonuniform surface, randomly entangled CNT arrays, and a weak interface between the CNTs and substrates, this transferred VA-CNT film shows an extremely high coefficient of static friction (COF) of up to 60 and a shear adhesion force 30 times higher (12 N/cm(2)) than that of the as-grown VA-CNTs under a very small preloading of 0.2 N/cm(2). Moreover, a near-zero normal adhesion force was observed with 20 mN/cm(2) preloading and a maximum 100-μm displacement in a piezo scanner, demonstrating ideal properties for an artificial gecko foot. Using this unique structural feature and anisotropic adhesion properties, we also demonstrate effective removal and assembly of nanoparticles into organized micrometer-scale circular and line patterns by a single brushing of this flat and uniform VA-CNT film.

  4. Aligned copper nanorod arrays for highly efficient generation of intense ultra-broadband THz pulses

    NASA Astrophysics Data System (ADS)

    Mondal, S.; Wei, Q.; Ding, W. J.; Hafez, H. A.; Fareed, M. A.; Laramée, A.; Ropagnol, X.; Zhang, G.; Sun, S.; Sheng, Z. M.; Zhang, J.; Ozaki, T.

    2017-01-01

    We demonstrate an intense broadband terahertz (THz) source based on the interaction of relativistic-intensity femtosecond lasers with aligned copper nanorod array targets. For copper nanorod targets with a length of 5 μm, a maximum 13.8 times enhancement in the THz pulse energy (in ≤20 THz spectral range) is measured as compared to that with a thick plane copper target under the same laser conditions. A further increase in the nanorod length leads to a decrease in the THz pulse energy at medium frequencies (≤20 THz) and increase of the electromagnetic pulse energy in the high-frequency range (from 20–200 THz). For the latter, we measure a maximum energy enhancement of 28 times for the nanorod targets with a length of 60 μm. Particle-in-cell simulations reveal that THz pulses are mostly generated by coherent transition radiation of laser produced hot electrons, which are efficiently enhanced with the use of nanorod targets. Good agreement is found between the simulation and experimental results.

  5. Some properties of field-aligned electron events in high-altitude polar regions

    NASA Astrophysics Data System (ADS)

    Zhang, ZiYing; Shi, JianKui; Zhou, MingQuan; Cheng, ZhengWei; Zhou, Hua

    2016-02-01

    Using data from the Cluster spacecraft from January 2003 to December 2004, we perform a statistical study on some properties of the field-aligned electron (FAE) events and interplanetary magnetic field (IMF) By dependence of FAE events with different durations in high-altitude polar regions. A total of 1335 FAE events were observed by the C3 spacecraft. More down-flowing events were observed in the Southern Hemisphere, and more up-flowing events were observed in the Northern Hemisphere. It proves that down-flowing events mainly originate from magnetosphere or solar wind and up-flowing events are mainly derived from ionosphere. Short-lifetime events showed a morning concentration in the magnetic local time distribution, and long-lifetime events were concentrated both before and after noon. For the IMF By dependence of the FAE events, short-lifetime events were much affected by IMF By and resulted in a morning concentration, while the long-lifetime events were almost unaffected by IMF By. With further analysis, we determined that the short-lifetime and long-lifetime events had different sources.

  6. Aligned copper nanorod arrays for highly efficient generation of intense ultra-broadband THz pulses

    PubMed Central

    Mondal, S.; Wei, Q.; Ding, W. J.; Hafez, H. A.; Fareed, M. A.; Laramée, A.; Ropagnol, X.; Zhang, G.; Sun, S.; Sheng, Z. M.; Zhang, J.; Ozaki, T.

    2017-01-01

    We demonstrate an intense broadband terahertz (THz) source based on the interaction of relativistic-intensity femtosecond lasers with aligned copper nanorod array targets. For copper nanorod targets with a length of 5 μm, a maximum 13.8 times enhancement in the THz pulse energy (in ≤20 THz spectral range) is measured as compared to that with a thick plane copper target under the same laser conditions. A further increase in the nanorod length leads to a decrease in the THz pulse energy at medium frequencies (≤20 THz) and increase of the electromagnetic pulse energy in the high-frequency range (from 20–200 THz). For the latter, we measure a maximum energy enhancement of 28 times for the nanorod targets with a length of 60 μm. Particle-in-cell simulations reveal that THz pulses are mostly generated by coherent transition radiation of laser produced hot electrons, which are efficiently enhanced with the use of nanorod targets. Good agreement is found between the simulation and experimental results. PMID:28071764

  7. High Electrocatalytic Activity of Vertically Aligned Single-Walled Carbon Nanotubes towards Sulfide Redox Shuttles

    PubMed Central

    Hao, Feng; Dong, Pei; Zhang, Jing; Zhang, Yongchang; Loya, Phillip E.; Hauge, Robert H.; Li, Jianbao; Lou, Jun; Lin, Hong

    2012-01-01

    Vertically aligned single-walled carbon nanotubes (VASWCNTs) have been successfully transferred onto transparent conducting oxide glass and implemented as efficient low-cost, platinum-free counter electrode in sulfide –mediated dye-sensitized solar cells (DSCs), featuring notably improved electrocatalytic activity toward thiolate/disulfide redox shuttle over conventional Pt counter electrodes. Impressively, device with VASWCNTs counter electrode demonstrates a high fill factor of 0.68 and power conversion efficiency up to 5.25%, which is significantly higher than 0.56 and 3.49% for that with a conventional Pt electrode. Moreover, VASWCNTs counter electrode produces a charge transfer resistance of only 21.22 Ω towards aqueous polysulfide electrolyte commonly applied in quantum dots-sensitized solar cells (QDSCs), which is several orders of magnitude lower than that of a typical Pt electrode. Therefore, VASWCNTs counter electrodes are believed to be a versatile candidate for further improvement of the power conversion efficiency of other iodine-free redox couple based DSCs and polysulfide electrolyte based QDSCs. PMID:22509466

  8. Aligned copper nanorod arrays for highly efficient generation of intense ultra-broadband THz pulses.

    PubMed

    Mondal, S; Wei, Q; Ding, W J; Hafez, H A; Fareed, M A; Laramée, A; Ropagnol, X; Zhang, G; Sun, S; Sheng, Z M; Zhang, J; Ozaki, T

    2017-01-10

    We demonstrate an intense broadband terahertz (THz) source based on the interaction of relativistic-intensity femtosecond lasers with aligned copper nanorod array targets. For copper nanorod targets with a length of 5 μm, a maximum 13.8 times enhancement in the THz pulse energy (in ≤20 THz spectral range) is measured as compared to that with a thick plane copper target under the same laser conditions. A further increase in the nanorod length leads to a decrease in the THz pulse energy at medium frequencies (≤20 THz) and increase of the electromagnetic pulse energy in the high-frequency range (from 20-200 THz). For the latter, we measure a maximum energy enhancement of 28 times for the nanorod targets with a length of 60 μm. Particle-in-cell simulations reveal that THz pulses are mostly generated by coherent transition radiation of laser produced hot electrons, which are efficiently enhanced with the use of nanorod targets. Good agreement is found between the simulation and experimental results.

  9. Unsupervised High-Dimensional Analysis Aligns Dendritic Cells across Tissues and Species.

    PubMed

    Guilliams, Martin; Dutertre, Charles-Antoine; Scott, Charlotte L; McGovern, Naomi; Sichien, Dorine; Chakarov, Svetoslav; Van Gassen, Sofie; Chen, Jinmiao; Poidinger, Michael; De Prijck, Sofie; Tavernier, Simon J; Low, Ivy; Irac, Sergio Erdal; Mattar, Citra Nurfarah; Sumatoh, Hermi Rizal; Low, Gillian Hui Ling; Chung, Tam John Kit; Chan, Dedrick Kok Hong; Tan, Ker Kan; Hon, Tony Lim Kiat; Fossum, Even; Bogen, Bjarne; Choolani, Mahesh; Chan, Jerry Kok Yen; Larbi, Anis; Luche, Hervé; Henri, Sandrine; Saeys, Yvan; Newell, Evan William; Lambrecht, Bart N; Malissen, Bernard; Ginhoux, Florent

    2016-09-20

    Dendritic cells (DCs) are professional antigen-presenting cells that hold great therapeutic potential. Multiple DC subsets have been described, and it remains challenging to align them across tissues and species to analyze their function in the absence of macrophage contamination. Here, we provide and validate a universal toolbox for the automated identification of DCs through unsupervised analysis of conventional flow cytometry and mass cytometry data obtained from multiple mouse, macaque, and human tissues. The use of a minimal set of lineage-imprinted markers was sufficient to subdivide DCs into conventional type 1 (cDC1s), conventional type 2 (cDC2s), and plasmacytoid DCs (pDCs) across tissues and species. This way, a large number of additional markers can still be used to further characterize the heterogeneity of DCs across tissues and during inflammation. This framework represents the way forward to a universal, high-throughput, and standardized analysis of DC populations from mutant mice and human patients.

  10. Dynamics of capillary infiltration of liquids into a highly aligned multi-walled carbon nanotube film.

    PubMed

    Boncel, Sławomir; Walczak, Krzysztof Z; Koziol, Krzysztof K K

    2011-01-01

    The physical compatibility of a highly aligned carbon nanotube (HACNT) film with liquids was established using a fast and convenient experimental protocol. Two parameters were found to be decisive for the infiltration process. For a given density of nanotube packing, the thermodynamics of the infiltration process (wettability) were described by the contact angle between the nanotube wall and a liquid meniscus (θ). Once the wettability criterion (θ < 90°) was met, the HACNT film (of free volume equal to 91%) was penetrated gradually by the liquid in a rate that can be linearly correlated to dynamic viscosity of the liquid (η). The experimental results follow the classical theory of capillarity for a steady process (Lucas-Washburn law), where the nanoscale capillary force, here supported by gravity, is compensated by viscous drag. This most general theory of capillarity can be applied in a prediction of both wettability of HACNT films and the dynamics of capillary rise in the intertube space in various technological applications.

  11. Alignment-free ultra-high-throughput comparison of druggable protein-ligand binding sites.

    PubMed

    Weill, Nathanaël; Rognan, Didier

    2010-01-01

    Inferring the biological function of a protein from its three-dimensional structure as well as explaining why a drug may bind to various targets is of crucial importance to modern drug discovery. Here we present a generic 4833-integer vector describing druggable protein-ligand binding sites that can be applied to any protein and any binding cavity. The fingerprint registers counts of pharmacophoric triplets from the Calpha atomic coordinates of binding-site-lining residues. Starting from a customized data set of diverse protein-ligand binding site pairs, the most appropriate metric and a similarity threshold could be defined for similar binding sites. The method (FuzCav) has been used in various scenarios: (i) screening a collection of 6000 binding sites for similarity to different queries; (ii) classifying protein families (serine endopeptidases, protein kinases) by binding site diversity; (iii) discriminating adenine-binding cavities from decoys. The fingerprint generation and comparison supports ultra-high throughput (ca. 1000 measures/s), does not require prior alignment of protein binding sites, and is able to detect local similarity among subpockets. It is thus particularly well suited to the functional annotation of novel genomic structures with low sequence identity to known X-ray templates.

  12. Supporting Students through Participation in the Regional High School Summer School Program

    ERIC Educational Resources Information Center

    Zhao, Huafang; McGaughey, Trisha A.; Wade, Julie

    2014-01-01

    The Office of Shared Accountability (OSA) in Montgomery County (Maryland) Public Schools (MCPS) conducted a study of the MCPS Regional High School Summer School Program. Academic intervention programs (AIPs) in MCPS, including the Regional High School Summer School Program, aim to help students gain lost credits and earn credits needed for…

  13. An Analysis of Florida's School Districts' Attendance Policies and their Relationship to High School Attendance Rates

    ERIC Educational Resources Information Center

    Reardon, Ryan Turner

    2008-01-01

    The purpose of this non-experimental correlational study was to determine the relationship between the type of attendance policies in the high schools of the 67 Florida school districts, the size of the school district (number of high school students), the socioeconomic status SES) of the school district, and the average daily attendance rate of…

  14. Some Effects of School Building Renovation on Pupil Attitudes and Behavior in Selected Junior High Schools.

    ERIC Educational Resources Information Center

    Cramer, Robert Joseph

    A study of 2,300 junior high school students from three schools determined the effect of a newly renovated school, a new school environment, and an old dilapidated school environment on their attitudes and behavior. Points were assigned to their answers; high scores indicated a positive attitude. Results show attitudes were lowest in the old…

  15. School Start Times for Middle School and High School Students - United States, 2011-12 School Year.

    PubMed

    Wheaton, Anne G; Ferro, Gabrielle A; Croft, Janet B

    2015-08-07

    Adolescents who do not get enough sleep are more likely to be overweight; not engage in daily physical activity; suffer from depressive symptoms; engage in unhealthy risk behaviors such as drinking, smoking tobacco, and using illicit drugs; and perform poorly in school. However, insufficient sleep is common among high school students, with less than one third of U.S. high school students sleeping at least 8 hours on school nights. In a policy statement published in 2014, the American Academy of Pediatrics (AAP) urged middle and high schools to modify start times as a means to enable students to get adequate sleep and improve their health, safety, academic performance, and quality of life. AAP recommended that "middle and high schools should aim for a starting time of no earlier than 8:30 a.m.". To assess state-specific distributions of public middle and high school start times and establish a pre-recommendation baseline, CDC and the U.S. Department of Education analyzed data from the 2011-12 Schools and Staffing Survey (SASS). Among an estimated 39,700 public middle, high, and combined schools* in the United States, the average start time was 8:03 a.m. Overall, only 17.7% of these public schools started school at 8:30 a.m. or later. The percentage of schools with 8:30 a.m. or later start times varied greatly by state, ranging from 0% in Hawaii, Mississippi, and Wyoming to more than three quarters of schools in Alaska (76.8%) and North Dakota (78.5%). A school system start time policy of 8:30 a.m. or later provides teenage students the opportunity to achieve the 8.5-9.5 hours of sleep recommended by AAP and the 8-10 hours recommended by the National Sleep Foundation.

  16. Prosody and Alignment: A Sequential Perspective

    ERIC Educational Resources Information Center

    Reed, Beatrice Szczepek

    2010-01-01

    In their analysis of a corpus of classroom interactions in an inner city high school, Roth and Tobin describe how teachers and students accomplish interactional alignment by prosodically matching each other's turns. Prosodic matching, and specific prosodic patterns are interpreted as signs of, and contributions to successful interactional outcomes…

  17. Development of an Attitude Scale towards High School Physics Lessons

    ERIC Educational Resources Information Center

    Yavas, Pervin Ünlü; Çagan, Sultan

    2017-01-01

    The aim of this study was to develop a Likert type attitude scale for high school students with regard to high school physics lessons. The research was carried out with high school students who were studying in Ankara. First, the opinions of 105 high school students about physics lessons were obtained and then 55 scale items were determined from…

  18. High School Feedback: An Analysis of States' Current Efforts

    ERIC Educational Resources Information Center

    Data Quality Campaign, 2011

    2011-01-01

    There is increased demand from multiple stakeholders for information about K-12 students' success after high school. When this information is provided back to high schools, it is often referred to as "high school feedback" information. This working document captures knowledge about states' capacity to and progress in providing high school feedback…

  19. High School Profiles: Application of HTML for Recruitment Decision Making

    ERIC Educational Resources Information Center

    Johnson, Iryna Y.

    2008-01-01

    Because high school graduates are many colleges' primary target population, information on high school students' performance and sociodemographic characteristics becomes important for the recruitment process. This article introduces an HTML application (referred to here as the High School Profile) that arranges high school information and makes…

  20. Effect of Nanotechnology Instructions on Senior High School Students

    ERIC Educational Resources Information Center

    Lu, Chow-Chin; Sung, Chia-Chi

    2011-01-01

    In this research, we cooperate with senior high school teachers to understand current nanotechnology model of senior high school nanotechnology curriculum in Taiwan. Then design senior high school nanotechnology (nano-tech) curriculum to teach 503 senior high school students. After teaching the nano-tech curriculum we use the "Nanotechnology…