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Sample records for public instruction jack

  1. Using Interactive Video Instruction To Enhance Public Speaking Instruction.

    Science.gov (United States)

    Cronin, Michael W.; Kennan, William R.

    Noting that interactive video instruction (IVI) should not and cannot replace classroom instruction, this paper offers an introduction to interactive video instruction as an innovative technology that can be used to expand pedagogical opportunities in public speaking instruction. The paper: (1) defines the distinctive features of IVI; (2) assesses…

  2. Jacks--A Study of Simple Machines.

    Science.gov (United States)

    Parsons, Ralph

    This vocational physics individualized student instructional module on jacks (simple machines used to lift heavy objects) contains student prerequisites and objectives, an introduction, and sections on the ratchet bumper jack, the hydraulic jack, the screw jack, and load limitations. Designed with a laboratory orientation, each section consists of…

  3. Effective Instruction of Public Speaking

    OpenAIRE

    竹野, 茂; Shigeru, TAKENO

    2012-01-01

    This paper explores the instruction of public speaking in a large-size class. The author has been in charge of the speech classes,SPEECH III and SPEECH IV mainly for the second year students at Miyazaki Municipal University for several years. At the preparation stage of SPEECH III, and IV, he intended that the class size was about 30 students as one group in the lecture style. But, in reality, more than 50 students took the course. Then he had to rethink the way of teaching. To solve the prob...

  4. Rural Public Transportation: An Instructional Module.

    Science.gov (United States)

    Hayden, Linda

    A concept-based introduction to rural public transportation is provided in this instructional module for undergraduate and graduate transportation-related courses for disciplines such as engineering, business, sociology, and technology. Rural public transportation involves systems in rural and small urban areas with populations under 50,000…

  5. Public Transportation Pricing: An Instructional Module.

    Science.gov (United States)

    McWha, Charley

    A concept-based introduction to public transportation pricing is presented in this instructional module for undergraduate and graduate transportation-related courses for disciplines such as engineering, business administration, and technology. After an introductory section on transportation pricing planning and the history of transportation system…

  6. Evaluation of school health instruction in public primary schools in ...

    African Journals Online (AJOL)

    Evaluation of school health instruction in public primary schools in Bonny Local Government Area, Rivers state. ... PROMOTING ACCESS TO AFRICAN RESEARCH ... Background: Effective school health instruction in primary schools is ...

  7. John B. "Jack" Townshend (1927-2012)

    Science.gov (United States)

    Love, Jeffrey J.; Finn, Carol A.

    2012-01-01

    Jack Townshend, geophysicist and dedicated public servant, died on 13 August 2012 in Fairbanks, Alaska. He was 85. Jack's career with the federal government, most of it with the national magnetic observatory program, spanned more than six solar cycles of time, and he retired only days before his death. The duration of Jack's career encompassed an important period in the history of the advancement of our understanding of the Earth. Jack's career of contributions, his life, and his personality are worthy of retrospective celebration.

  8. Informing Instruction of Students with Autism in Public School Settings

    Science.gov (United States)

    Kuo, Nai-Cheng

    2016-01-01

    The number of applied behavior analysis (ABA) classrooms for students with autism is increasing in K-12 public schools. To inform instruction of students with autism in public school settings, this study examined the relation between performance on mastery learning assessments and standardized achievement tests for students with autism spectrum…

  9. Public Journalism Challenges to Curriculum and Instruction.

    Science.gov (United States)

    Haas, Tanni

    2000-01-01

    Considers some challenges of teaching public journalism. Discusses how journalism educators can help students prepare for a career in the service of public life by teaching them how to actively involve citizens in the journalistic processes of gathering information, writing stories, and evaluating performance. Offers teaching applications and…

  10. Instructional Resources: Issues in Public Sculpture.

    Science.gov (United States)

    Hill, Julie Lasater; And Others

    1988-01-01

    Presents four lesson plans for teaching K-12 students about public sculpture and contemporary sculptors. Highlights the following works: "Playscapes" by Isamu Noguchi, "The Dallas Piece" by Henry Moore, "Old Glory" by Mark di Suvero, and "Face of the Earth" by Vito Acconci. Includes background information on…

  11. Jack St. Clair Kilby

    Indian Academy of Sciences (India)

    IAS Admin

    the modern history of science and technology is highlighted by the fact that Jack ... Missouri, a traditional mid-western state in the United States of. America. ... his engineering education got interrupted when the second world war intensified ...

  12. Effects of Defatted Jack Bean Flour and Jack Bean Protein ...

    African Journals Online (AJOL)

    This study evaluated the effects of substituting wheat flour with defatted Jack bean flour and Jack bean protein concentrate on bread quality. Jack bean flour milled from the seed nibs was defatted with n-hexane and part of the defatted flour (DJF) extracted in acid medium (pH; 4.5) for protein concentrate (JPC). Both the DJF ...

  13. Sennar Jacks (Equus asinus)

    African Journals Online (AJOL)

    This study was carried out with an objective of evaluating the breeding soundness and sexual behavior of Sennar jackasses. ... score of 7 for the breeding and 4.8 for the working jacks. The mean (iSE) of height at wither,the ..... Equine Reproductive Physiology, Breeding and Stud Manage- ment, 2ndEdn. Farming Press ...

  14. Jack Michael's Motivation

    OpenAIRE

    Miguel, Caio F.

    2013-01-01

    Among many of Jack Michael's contributions to the field of behavior analysis is his behavioral account of motivation. This paper focuses on the concept of motivating operation (MO) by outlining its development from Skinner's (1938) notion of drive. Conceptually, Michael's term helped us change our focus on how to study motivation by shifting its origins from the organism to the environment. Michael's account also served to stimulate applied research and to better understand behavioral functio...

  15. Happy birthday, Jack Steinberger

    CERN Multimedia

    CERN Bulletin

    2016-01-01

    Even if he’s recently stopped coming to CERN on his bike, Jack Steinberger and his piercing blue eyes are still regular visitors to our corridors. As he celebrates his 95th birthday, we pay tribute to one of CERN’s greatest scientists.   Jack Steinberger in 2008, pictured on the occasion of the "Accelerating Nobel" exhibition. (Image: Claudia Marcelloni/CERN) Jack emigrated from Germany to the United States in 1934 to escape the persecution of the Jews. He later went on to study under Enrico Fermi in Chicago and in the 1950s, he contributed to the development of bubble chambers. Using this new detection apparatus, he was involved in the myriad discoveries and results that led to the construction of the Standard Model. In 1961, while at Columbia University (New York), he took part in the first experiment with a high-energy neutrino beam, which gave rise to the discovery of the muon neutrino. This discovery was awarded the&a...

  16. From Jack to Double Jack Polynomials via the Supersymmetric Bridge

    Science.gov (United States)

    Lapointe, Luc; Mathieu, Pierre

    2015-07-01

    The Calogero-Sutherland model occurs in a large number of physical contexts, either directly or via its eigenfunctions, the Jack polynomials. The supersymmetric counterpart of this model, although much less ubiquitous, has an equally rich structure. In particular, its eigenfunctions, the Jack superpolynomials, appear to share the very same remarkable combinatorial and structural properties as their non-supersymmetric version. These super-functions are parametrized by superpartitions with fixed bosonic and fermionic degrees. Now, a truly amazing feature pops out when the fermionic degree is sufficiently large: the Jack superpolynomials stabilize and factorize. Their stability is with respect to their expansion in terms of an elementary basis where, in the stable sector, the expansion coefficients become independent of the fermionic degree. Their factorization is seen when the fermionic variables are stripped off in a suitable way which results in a product of two ordinary Jack polynomials (somewhat modified by plethystic transformations), dubbed the double Jack polynomials. Here, in addition to spelling out these results, which were first obtained in the context of Macdonal superpolynomials, we provide a heuristic derivation of the Jack superpolynomial case by performing simple manipulations on the supersymmetric eigen-operators, rendering them independent of the number of particles and of the fermionic degree. In addition, we work out the expression of the Hamiltonian which characterizes the double Jacks. This Hamiltonian, which defines a new integrable system, involves not only the expected Calogero-Sutherland pieces but also combinations of the generators of an underlying affine {widehat{sl}_2} algebra.

  17. Is What's Hot in Reading What Should Be Important for Reading Instruction?

    Science.gov (United States)

    Rasinski, Timothy

    2016-01-01

    For years one of the most anticipated events in reading instruction has been Jack Cassidy and his colleagues' annual publication of the "What's Hot, What's Not" survey. In their present study, using longitudinal data from the What's Hot survey, Cassidy, Ortlieb, and Grote-Garcia (2016) make the case that because the Common Core Standards…

  18. Principals Performance of Supervision of Instructions in Public ...

    African Journals Online (AJOL)

    Data were collected from a sample of 604 out of 1640 teachers using stratified ... supervision of instructions in the school since effective supervision improves ... and reduces incidence of students' involvement in examination malpractices.

  19. Jack Stenner: The Lexile King.

    Science.gov (United States)

    Webster, Linda J.

    2000-01-01

    Traces the career of Jack Stenner. Stenner made the empirical discovery that observable readability could be entirely predicted from word familiarity and sentence length, and applied this "Lexile Framework"(R) to books and readers. Discusses the use of the Lexile Framework as a way to target specific readers. (SLD)

  20. Heritability and intertrait correlations in breeding subpopulations of jack pine

    Science.gov (United States)

    Don E. Riemenschneider

    1985-01-01

    Twenty breeding populations of jack pine were established in 1979 and 1980 in Minnesota, Wisconsin, and Michigan. Four populations were index populations and were each established at 4 locations by research cooperators. Sixteen populations were applied breeding populations and were established at single locations by public and private cooperators. Combined analysis of...

  1. 22 CFR 66.3 - Places at which forms and instructions for use by the public may be obtained.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Places at which forms and instructions for use... which forms and instructions for use by the public may be obtained. (a) All forms and instructions... from the Program Office of NED to the address shown in paragraph (a) of this section. (c) General...

  2. Computer-Assisted Management of Instruction in Veterinary Public Health

    Science.gov (United States)

    Holt, Elsbeth; And Others

    1975-01-01

    Reviews a course in Food Hygiene and Public Health at the University of Illinois College of Veterinary Medicine in which students are sequenced through a series of computer-based lessons or autotutorial slide-tape lessons, the computer also being used to route, test, and keep records. Since grades indicated mastery of the subject, the course will…

  3. Quality of publication ethics in the instructions to the authors of Iranian journals of medical sciences.

    Science.gov (United States)

    Salamat, Fatemeh; Sobhani, Abdol-Rasoul; Mallaei, Mahin

    2013-03-01

    Providing a perfect instruction to authors can prevent most potential publication ethics errors. This study was conducted to determine the quality of ethical considerations in the instructions to the authors of Iranian research scientific journals of medical sciences (accredited by the Commission for Accreditation and Improvement of Iranian Medical Journals) in October 2011. Checklist items (n=15) were extracted from the national manual of ethics in medical research publications, and the validity of the manual of ethics was assessed. All the accredited Iranian journals of medical sciences (n=198) were entered into the study. The instructions to the authors of 160 accredited Iranian journals were available online and were reviewed. The ANOVA and Kendall Correlation coefficient were performed to analyze the results. A total of 76 (47.5%) of the 160 journals were in English and 84 (52.5%) were in Farsi. The most frequently mentioned items related to publication ethics comprised "commitment not to send manuscripts to other journals and re-publish manuscripts" (85%, 83.8%), "aim and scope" of the journal (81.9%), "principles of medical ethics in the use of human samples" (74.4%), and "review process" (74.4%). On the other hand, the items of "principles of advertising" (1.2%), "authorship criteria" (15%), and "integrity in publication of clinical trial results" (30.6%) were the least frequently mentioned ones. Based on the study findings, the quality of publication ethics, as instructed to the authors, can improve the quality of the journals.

  4. Assessing the Readability of College Textbooks in Public Speaking: Attending to Entry Level Instruction

    Science.gov (United States)

    Schneider, David E.

    2011-01-01

    More research is needed that examines textbooks intended for the entry level college classroom. This study offers valuable information to academics that adopt a public speaking textbook for instruction as well as objective feedback to the collective authors. Readability levels of 22 nationally published textbooks, based on McGlaughlin's (1969)…

  5. Educating English Language Learners: Instructional Approaches and Teacher Collaboration in Philadelphia Public Schools. PERC Research Brief

    Science.gov (United States)

    Reumann-Moore, Rebecca; Rowland, Jeannette; Hughes, Rosemary; Lin, Joshua

    2016-01-01

    Districts, charter management organizations, and individual schools can learn a great deal from each other about strategies for creating robust and supportive learning environments for English Language Learners (ELLS). This brief highlights key findings about how Philadelphia public schools were crafting instructional approaches to serve their…

  6. A Computer-Assisted Instruction in Teaching Abstract Statistics to Public Affairs Undergraduates

    Science.gov (United States)

    Ozturk, Ali Osman

    2012-01-01

    This article attempts to demonstrate the applicability of a computer-assisted instruction supported with simulated data in teaching abstract statistical concepts to political science and public affairs students in an introductory research methods course. The software is called the Elaboration Model Computer Exercise (EMCE) in that it takes a great…

  7. Contracting for Statewide Student Achievement Tests: A Review. Department of Public Instruction 98-4.

    Science.gov (United States)

    Wisconsin State Legislative Audit Bureau, Madison.

    The Wisconsin legislature has required the Department of Public Instruction to adopt or approve standardized tests for statewide use to measure student attainment of knowledge and concepts in grades 4, 8, and 10. Although school districts generally gave high ratings to the contents of TerraNova (McGraw Hill), the testing instrument most recently…

  8. Analyzing the Cost-Effectiveness of Instruction Expenditures towards High School Completion among Oahu's Public School Districts

    Science.gov (United States)

    Ng, Larson S. W. M.

    2011-01-01

    The following study attempted to ascertain the instructional cost-effectiveness of public high school teachers towards high school completion through a financially based econometric analysis. Essentially, public high school instruction expenditures and completer data were collected from 2000 to 2007 and bivariate interaction analyzed through a…

  9. Jack Michael's Musings on the 60th Anniversary of Skinner's "Verbal Behavior"

    Science.gov (United States)

    Esch, Barbara E.; Esch, John W.; Palmer, David C.

    2017-01-01

    When the B. F. Skinner Foundation reprinted Skinner's "Verbal Behavior" in 1992, Jack Michael wrote one of its two forewords, a detailed outline of the book's purpose and scope. On the 60th anniversary of the first publication (1957) of "Verbal Behavior", Jack reflects on the book's impact and its importance to the…

  10. The Alignment Jacks of the LHC Cryomagnets

    CERN Document Server

    Dwivedi, J; Goswami, S G; Madhumurthy, V; Parma, V; Soni, H C

    2004-01-01

    The precise alignment of the 1232 dipoles, 474 Short Straight Sections (SSS) and some other components of the LHC collider, requires the use of 6800 jacks. The specific requirements and the need for a cost-effective solution for this large production, justified the development and industrialisation of a dedicated mechanical jack. The jack was developed, and is now being produced by Centre for Advanced Technology, India, in the framework of a collaboration between CERN and the Department of Atomic Energy in India. Three jacks support each of the 32-ton heavy, 15-meter long cryo-dipole of LHC, and provide the required alignment features. Identical jacks support the lighter LHC Short Straight Sections. Presently, the mass production of 6800 jacks is in progress with two Indian manufacturers, and 3545 jacks have already been delivered to CERN by April 2004. Considering the successful performance of the jacks, it is now envisaged to extend their use, with some modifications, for even higher-demanding alignment of ...

  11. Quality of Publication Ethics in the Instructions to the Authors of Iranian Journals of Medical Sciences

    Directory of Open Access Journals (Sweden)

    Fatemeh Salamat

    2013-03-01

    Full Text Available Providing a perfect instruction to authors can prevent most potential publication ethics errors. This study was conducted to determine the quality of ethical considerations in the instructions to the authors of Iranian research scientific journals of medical sciences (accredited by the Commission for Accreditation and Improvement of Iranian Medical Journals in October 2011. Checklist items (n=15 were extracted from the national manual of ethics in medical research publications, and the validity of the manual of ethics was assessed. All the accredited Iranian journals of medical sciences (n=198 were entered into the study. The instructions to the authors of 160 accredited Iranian journals were available online and were reviewed. The ANOVA and Kendall Correlation coefficient were performed to analyze the results. A total of 76 (47.5% of the 160 journals were in English and 84 (52.5% were in Farsi. The most frequently mentioned items related to publication ethics comprised “commitment not to send manuscripts to other journals and re-publish manuscripts” (85%, 83.8%, “aim and scope” of the journal (81.9%, “principles of medical ethics in the use of human samples” (74.4%, and “review process” (74.4%. On the other hand, the items of “principles of advertising” (1.2%, “authorship criteria” (15%, and “integrity in publication of clinical trial results” (30.6% were the least frequently mentioned ones. Based on the study findings, the quality of publication ethics, as instructed to the authors, can improve the quality of the journals.

  12. Supervision of Special Education Instruction in Rural Public School Districts: A Grounded Theory

    OpenAIRE

    Bays, Debora Ann

    2001-01-01

    The grounded theory presented in this study describes how the supervision of special education instruction occurs in public elementary schools in rural settings. Grounded theory methodology (Strauss & Corbin, 1998) was employed in this study. Nine elementary schools in three rural districts in the state of Virginia participated in the study. Interview data were collected from 34 participants, including special and general education teachers, principals, and directors of special education. Obs...

  13. Using innovative instructional technology to meet training needs in public health: a design process.

    Science.gov (United States)

    Millery, Mari; Hall, Michelle; Eisman, Joanna; Murrman, Marita

    2014-03-01

    Technology and distance learning can potentially enhance the efficient and effective delivery of continuing education to the public health workforce. Public Health Training Centers collaborate with instructional technology designers to develop innovative, competency-based online learning experiences that meet pressing training needs and promote best practices. We describe one Public Health Training Center's online learning module design process, which consists of five steps: (1) identify training needs and priority competencies; (2) define learning objectives and identify educational challenges; (3) pose hypotheses and explore innovative, technology-based solutions; (4) develop and deploy the educational experience; and (5) evaluate feedback and outcomes to inform continued cycles of revision and improvement. Examples illustrate the model's application. These steps are discussed within the context of design practices in the fields of education, engineering, and public health. They incorporate key strategies from across these fields, including principles of programmatic design familiar to public health professionals, such as backward design. The instructional technology design process we describe provides a structure for the creativity, collaboration, and systematic strategies needed to develop online learning products that address critical training needs for the public health workforce.

  14. Jack Reeves and his science.

    Science.gov (United States)

    Moore, Lorna G; Grover, Robert F

    2006-04-28

    John T. (Jack) Reeves' science is reviewed across the 37 years of his research career at the University of Colorado Health Sciences Center, a period which occupied approximately half his remarkable life. His contributions centered on understanding the inter-relatedness as well as the underlying mechanisms controlling the various components of the O(2) transport system. We review here his studies on exercise performance; these encompassed about half his scientific output with the other half being devoted to the study of hypoxic pulmonary hypertension. Early studies concerned cardiac output, showing how it was a balance between O(2) uptake and O(2) extraction, and that cardiac output during exercise at high altitude was reduced, most likely because of decreased plasma volume and left ventricular filling. Jack's many studies addressed virtually every aspect of the O(2) transport system -- adding significantly to our understanding of the syndromes of altitude illness, the mechanisms by which ventilatory sensitivity to hypoxia and hypercapnia influenced ventilatory acclimatization, and the contributions of the various limbs of the autonomic nervous system on systemic blood pressure, vascular resistance and substrate utilization. His scientific career ended abruptly in 2004 when struck by a car while biking to work, but his legacy remains in his more than 385+ research articles or chapters, the 40+ fellows he trained, and the countless number of younger (and older) scientists for whom he served as a role model for learning how to scrutinize their data and present their findings in clear and sometimes bold prose. An integral man, he is sorely missed.

  15. Children, Technology, and Instruction: A Case Study of Elementary School Children Using an Online Public Access Catalog (OPAC).

    Science.gov (United States)

    Solomon, Paul

    1994-01-01

    Examines elementary school students' use of an online public access catalog to investigate the interaction between children, technology, curriculum, instruction, and learning. Highlights include patterns of successes and breakdowns; search strategies; instructional approaches and childrens' interests; structure of interaction; search terms; and…

  16. Jack superpolynomials: physical and combinatorial definitions

    International Nuclear Information System (INIS)

    Desrosiers, P.; Mathieu, P.; Lapointe, L.

    2004-01-01

    Jack superpolynomials are eigenfunctions of the supersymmetric extension of the quantum trigonometric Calogero-Moser-Sutherland Hamiltonian. They are orthogonal with respect to the scalar product, dubbed physical, that is naturally induced by this quantum-mechanical problem. But Jack superpolynomials can also be defined more combinatorially, starting from the multiplicative bases of symmetric superpolynomials, enforcing orthogonality with respect to a one-parameter deformation of the combinatorial scalar product. Both constructions turn out to be equivalent. (author)

  17. Jack Michael's Motivation

    Science.gov (United States)

    Miguel, Caio F.

    2013-01-01

    Among many of Jack Michael's contributions to the field of behavior analysis is his behavioral account of motivation. This paper focuses on the concept of "motivating operation" (MO) by outlining its development from Skinner's (1938) notion of "drive." Conceptually, Michael's term helped us change our focus on…

  18. Jack in the Box, Unit 1A

    DEFF Research Database (Denmark)

    Gammelgaard Nielsen, Anders

    2011-01-01

    In the assignment known as ‘JACK- in-the-box’ the aim is to foster col- laborative situations through man- aging a complex architectural issue. The aim is to conduct an integrat- ed teaching course that extends from an introductory outline pro- cess through to the project devel- opment phase...

  19. A Self-Instructional Course in Student Financial Aid Administration. Module 16: Forms and Publications. Second Edition.

    Science.gov (United States)

    Washington Consulting Group, Inc., Washington, DC.

    Module 16 (in a 17-module self-instructional course on student financial aid administration for novice financial aid administrators and other institutional personnel) discusses forms and publications that should be developed and used by the financial aid office. The full course is an introduction to the management of federal financial aid programs…

  20. Reproductive aspects of Jack mackerel Trachurus murphy

    Directory of Open Access Journals (Sweden)

    Ángel Perea

    2013-10-01

    Full Text Available The time series of monthly gonadosomatic index (GSI and biannual size at first maturity of Jack mackerel Trachurus murphyiNichols 1920 in Peru between 1967 and 2012 is analyzed and discussed. The annual and interannual variation of the reproductive cycle was determined. It is shown that in Peru T. murphyihas a single relatively extended spawning period with a maximum in November each year. It is also shown that for more than four decades T. murphyi has spawned regularly every year in Peruvian waters. The reproductive activity of T. murphyi has a greater variability off Peru and the spawning period has peaks of lesser magnitude but extend longer than observed in the spawning occurring off Chile. The analyses of the sizes at first maturity of Jack mackerel in Peruvian waters did not show significant changes throughout the entire period observed.

  1. 'Weightless' acrylic painting by Jack Kroehnke

    Science.gov (United States)

    1987-01-01

    'Weightless' acrylic painting by Jack Kroehnke depicts STS-26 Discovery, Orbiter Vehicle (OV) 103, Mission Specialist (MS) David C. Hilmers participating in extravehicular activity (EVA) simulation in JSC Weightless Environment Training Facility (WETF) Bldg 29. In the payload bay (PLB) mockup, Hilmers, wearing extravehicular mobility unit (EMU), holds onto the mission-peculiar equipment support structure in foreground while SCUBA-equipped diver monitors activity overhead and camera operator records EVA procedures. Copyrighted art work for use by NASA.

  2. Ethics Instruction for Future Geoscientists: Essential for Contributions to Good Public Policy

    Science.gov (United States)

    Leinen, M.; Mogk, D. W.

    2016-12-01

    Geoscientists work in a world of uncertainty in the complex, dynamic, and chaotic Earth system that is fraught with opportunities to become involved in ethical dilemmas. To be effective contributors to the public discourse on Earth science policy, geoscientists must conduct their work according to the highest personal and professional ethical standards. The geosciences as a discipline relies on the fidelity of geoscience data and their interpretations, geoscience concepts and methodologies must be conveyed to policy makers in ways that allow them to make informed decisions, corporations require a workforce that conducts their affairs according to the highest standards, and the general public expects the highest standards of conduct of geoscientists as they underwrite much of the research supported through tax dollars and the applications of this research impacts personal and societal lives. Geoscientists must have the foundations to identify ethical dilemmas in the first instance, and to have the ethical decision-making skills to either prevent, mitigate or otherwise address ethical issues that arise in professional practice. Awareness of ethical issues arises in many dimensions: Ethics and self (engaging self-monitoring and self-regulating behaviors); Ethics and profession (working according to professional standards); Ethics and society (communicating effectively to policy makers and the general public about the underlying science that informs public policy); and, Ethics and Earth (recognizing the unique responsibilities of geoscientists in the stewardship of Earth). To meet these ethical challenges, training of future geoscientists must be done a) at the introductory level as all students should be aware of ethical implications of geoscience concepts as they impact societal issues; undergraduate geoscience majors need to be explicitly trained in the standards and norms of the geoscience community of practice; graduate students need to be fully prepared to deal

  3. Television in the Schools: Instructional Television and Educational Media Resources at the National Public Broadcasting Archives

    Science.gov (United States)

    King, Karen

    2008-01-01

    In 1964, in "A Guide to Instructional Television," editor Robert M. Diamond defined "educational television" as a "broad term usually applied to cultural and community broadcasting which may include some programs for in-school use" (p. 278). His definition for instructional television was "television used within the formal classroom context on any…

  4. Are pediatric Open Access journals promoting good publication practice? An analysis of author instructions.

    Science.gov (United States)

    Meerpohl, Joerg J; Wolff, Robert F; Antes, Gerd; von Elm, Erik

    2011-04-09

    Several studies analyzed whether conventional journals in general medicine or specialties such as pediatrics endorse recommendations aiming to improve publication practice. Despite evidence showing benefits of these recommendations, the proportion of endorsing journals has been moderate to low and varied considerably for different recommendations. About half of pediatric journals indexed in the Journal Citation Report referred to the Uniform Requirements for Manuscripts of the International Committee of Medical Journal Editors (ICMJE) but only about a quarter recommended registration of trials. We aimed to investigate to what extent pediatric open-access (OA) journals endorse these recommendations. We hypothesized that a high proportion of these journals have adopted recommendations on good publication practice since OA electronic publishing has been associated with a number of editorial innovations aiming at improved access and transparency. We identified 41 journals publishing original research in the subject category "Health Sciences, Medicine (General), Pediatrics" of the Directory of Open Access Journals http://www.doaj.org. From the journals' online author instructions we extracted information regarding endorsement of four domains of editorial policy: the Uniform Requirements for Manuscripts, trial registration, disclosure of conflicts of interest and five major reporting guidelines such as the CONSORT (Consolidated Standards of Reporting Trials) statement. Two investigators collected data independently. The Uniform Requirements were mentioned by 27 (66%) pediatric OA journals. Thirteen (32%) required or recommended trial registration prior to publication of a trial report. Conflict of interest policies were stated by 25 journals (61%). Advice about reporting guidelines was less frequent: CONSORT was referred to by 12 journals (29%) followed by other reporting guidelines (MOOSE, PRISMA or STARD) (8 journals, 20%) and STROBE (3 journals, 7%). The EQUATOR

  5. Automatic Hydraulic Jack Inbuilt In A Four Wheeler

    Directory of Open Access Journals (Sweden)

    Parth M. Patel

    2015-08-01

    Full Text Available With increasing levels of technology efforts being put to increase the comfort and safety. These can be done by implementation of better design. This paper describes Implementation of Automatic hydraulic jack Mechanism in a four wheeler itself. The jack will be powered by the battery. So at a time of puncture to replace the wheel one has to just press the button and the jack which is fitted in the car itself will lift the car.

  6. Private action and public power in the struggle for instruction: Portugal in the second half of the 19th

    Directory of Open Access Journals (Sweden)

    Wenceslau Gonçalves Neto

    2012-02-01

    Full Text Available For the consolidation of their power in the 19th century, the national states developed new mechanisms to impart their ideology, among which the national systems of teaching. Because of the fi nancial diffi culties, the states allowed the private sphere in, what turned out to be a way to change instruction into a national cause. In Portugal, the State did not have the economic resources neither the political will. The private sphere was invited to take part in that effort to offer popular instruction. Various types of participation occurred in that period, reaching evidence the engagement of an entrepreneur of a neighborhood in the country area of Portugal. He tried all that he could to build and to offer a school to the community. Even though there was a great scarcity of instruction in the country and the political discourse supported the enterprise, the task would not be easy at all. He had to face the local political power, in the sequence the same problem in the higher spheres of political power. Even the civil governor of Aveiro and the direction of the Secretary of Public Instruction of the government. Taking up fi les and documents of the “Torre do Tombo”, in Lisbon, this work tries to show the complexity of the process of the diffusion of education and the confl icts of power that followed, specially those issues which seemed to be consensual.

  7. Transitional Experiences of Post-16 Sports Education: Jack's Story

    Science.gov (United States)

    Aldous, David C. R.; Sparkes, Andrew C.; Brown, David H. K.

    2014-01-01

    This paper explores the layered transitional experiences of a semi-professional athlete named Jack (a pseudonym) between the fields of professional sport and further and higher education. Our analysis is framed by the quadripartite framework of structuration and focuses on Jack's "in-situ" practices at his college and university in order…

  8. Computer-Based Video Instruction to Teach Students with Intellectual Disabilities to Use Public Bus Transportation

    Science.gov (United States)

    Mechling, Linda; O'Brien, Eileen

    2010-01-01

    This study investigated the effectiveness of computer-based video instruction (CBVI) to teach three young adults with moderate intellectual disabilities to push a "request to stop bus signal" and exit a city bus in response to target landmarks. A multiple probe design across three students and one bus route was used to evaluate effectiveness of…

  9. Handbook for Instruction on Aging in California Public Schools. Kindergarten Through Grade Twelve.

    Science.gov (United States)

    California State Dept. of Education, Sacramento.

    This handbook is designed to assist teachers at the elementary and secondary level in the development of curricula on aging which can integrate the concepts of aging into ongoing lesson plans. The five content areas of instruction include chronological aging, physiological and biological aging, sociocultural aspects of aging, psychological aging,…

  10. mprovements in the Process of Requisite Elicitation for Public Management Software: A Case Study Using Work Instructions

    Directory of Open Access Journals (Sweden)

    GOES, A. S.

    2013-12-01

    Full Text Available Requirements elicitation is not an easy task. Different expectations between users and analysts, redundancy of information and lack of standardization can make this task difficult and conflicting. When it comes to software for the public sector this task becomes somewhat more complicated because of the constant changes in federal laws and regulations. This paper presents a case study of applying work instructions to remedy these kind of problems, as well as others found in the company where the study was carried out. We achieved very promising results, namely better utilization of human resources and reduction of job demand.

  11. Using Video Modeling with Voice-over Instruction to Train Public School Staff to Implement a Preference Assessment.

    Science.gov (United States)

    Bovi, Gina M Delli; Vladescu, Jason C; DeBar, Ruth M; Carroll, Regina A; Sarokoff, Randi A

    2017-03-01

    The identification of putative reinforcers is a critical component of programming for individuals with disabilities. A multiple stimulus without replacement preference assessment is one option for identifying putative reinforcers; however, staff must be trained on the steps necessary to conduct the assessment for it to be useful in practice. This study examined the effectiveness of using video modeling with voice-over instruction (VMVO) to train two public school staff to conduct this assessment. Results demonstrate that VMVO was effective in training, producing generalized responding, maintenance, and high social validity ratings.

  12. The Jack Wills crowd: towards a sociology of an elite subculture.

    Science.gov (United States)

    King, Anthony; Smith, Daniel

    2018-03-01

    British sociologists have long been interested in youth sub-cultures. However British sociologists have tended to focus on working class subcultures and avoided engagement with exclusive sub-cultures of elite social groups. This article seeks to attend to this gap by examining the subculture of a British elite: ex-public school students at select universities in the UK in the twenty-first century. This group consists of a relatively small group of young adults, aged between 18 and 23, who attended public schools, especially one of the nine Clarendon schools (Eton, Winchester, Westminster, St. Paul's, Merchant Taylor's, Shrewsbury, Rugby, Harrow and Charterhouse), and were students at a selective group of British universities, primarily Oxford and Cambridge, Durham, Bristol, Exeter, Bath, Manchester, St Andrews and Edinburgh. The article examines the way in which this group has reconfigured and re-constituted itself in the face of globalizing challenges. Specifically, it examines the way in which participation of ex-public school students in events run by and under the patronage of the high street retailing company, Jack Wills, has played a galvanising role for this group in the last decade. The Jack Wills crowd is an example of how some young adults form exclusive social networks and reproduce prevailing forms of privilege. The social networks built around the Jack Wills subculture is likely to provide them with advantages in the job market through a prodigious network of connections and patrons. The Jack Wills subculture potentially contributions to the socio-economic reproduction of the higher professional middle classes. © London School of Economics and Political Science 2017.

  13. Jack Michael's Appointments at the University of Houston and Arizona State University: Reflections from a Former Student

    Science.gov (United States)

    Mabry, John H.

    2016-01-01

    Jack Michael was an early enthusiast for what is now called applied behavior analysis. His many seminal contributions were through early publications in applied behavior analysis and the work of the students he trained (e.g., T. Ayllon, M. M. Wolf). His close mentorship of students earned him acclaim as a teacher along with his many theoretical…

  14. Southwestern Surgical Congress Jack A. Barney award competition presenters - Where are they now?

    Science.gov (United States)

    Kothari, Shanu N; Kallies, Kara J

    2017-12-01

    Resident research presentations at surgical conferences may encourage future research endeavors. 2010-2016 SWSC annual meeting programs were reviewed for presenters eligible for the Jack Barney award. Award recipients from 1987 to 2016 were included. There were 100 unique presenters eligible for the Jack Barney award, and 28 unique award recipients. Thirty-six (82%) presenters currently practice in a community setting, 5 (11%) at a university hospital, 2 (5%) internationally, and 1 (2%) in a military hospital. Scholarly articles were published by 41% of presenters. Sixteen of the 28 recipients (57%) practice in community hospitals, and 9 (32%) practice in university settings; 3 are still in training. Twenty recipients (71%) published after residency. Thirty percent and 25% of presenters and recipients are SWSC members, respectively. Peer-reviewed publications were frequent among eligible presenters and award recipients. Encouraging presenters to become SWSC members provides an opportunity for improved retention. Copyright © 2017 Elsevier Inc. All rights reserved.

  15. Instructional Vignettes in Publication and Journalism Ethics in Radiology Research: Assessment via a Survey of Radiology Trainees.

    Science.gov (United States)

    Rosenkrantz, Andrew B; Ginocchio, Luke A

    2016-07-01

    The aim of the present study was to assess the potential usefulness of written instructional vignettes relating to publication and journalism ethics in radiology via a survey of radiology trainees. A literature review was conducted to guide the development of vignettes, each describing a scenario relating to an ethical issue in research and publication, with subsequent commentary on the underlying ethical issue and potential approaches to its handling. Radiology trainees at a single institution were surveyed regarding the vignettes' perceived usefulness. A total of 21 vignettes were prepared, addressing institutional review board and human subjects protection, authorship issues, usage of previous work, manuscript review, and other miscellaneous topics. Of the solicited trainees, 24.7% (16/65) completed the survey. On average among the vignettes, 94.0% of the participants found the vignette helpful; 19.9 received prior formal instruction on the issue during medical training; 40.0% received prior informal guidance from a research mentor; and 42.0% indicated that the issue had arisen in their own or a peer's prior research experience. The most common previously experienced specific issue was authorship order (93.8%). Free-text responses were largely favorable regarding the value of the vignettes, although also indicated numerous challenges in properly handling the ethical issues: impact of hierarchy, pressure to publish, internal politics, reluctance to conduct sensitive conversations with colleagues, and variability in journal and professional society policies. Radiology trainees overall found the vignettes helpful, addressing commonly encountered topics for which formal and informal guidance were otherwise lacking. The vignettes are publicly available through the Association of University Radiologists (AUR) website and may foster greater insights by investigators into ethical aspects of the publication and journalism process, thus contributing to higher quality

  16. Fourth "R" in Analytic Mode: A Study of Alternatives to Religious Instruction in the Public Schools.

    Science.gov (United States)

    Dudley, Noel W.

    This doctoral dissertation examines alternatives for public-school religious education which stress spiritual values but do not conflict with legal restrictions. The study is divided into four parts. Part one is an historical survey of religious education in public schools that includes an interpretation of the legal restrictions and the…

  17. Manager's handbook for jack pine in the north central states.

    Science.gov (United States)

    John W. Benzie

    1977-01-01

    Provides a key for the resource manager to use in choosing silvicultural practices for the management of jack pine. Control of stand composition, growth, and stand establishment for timber production, water, wildlife, and recreation are discussed.

  18. Generalized Jack and Macdonald polynomials arising from AGT conjecture

    Science.gov (United States)

    Ohkubo, Y.

    2017-01-01

    We investigate the existence and the orthogonality of the generalized Jack symmetric functions which play an important role in the AGT relations. We show their orthogonality by deforming them to the generalized Macdonald symmetric functions.

  19. In conversation with Nobel Laureate Jack Steinberger

    CERN Multimedia

    2011-01-01

    Awarded the 1988 Nobel Prize for Physics for his discovery of the muon neutrino, Jack Steinberger has been part of the CERN establishment for almost 50 years. He recently celebrated his 90th birthday and can still be found in his CERN office on an almost daily basis. If you happened to have a coffee with him… this is what he would tell you: his recollections, and thoughts about the present and future of particle physics.   I’ve been at CERN for 45 years, and I’ve seen this organisation go through a lot. Experiments have grown significantly and so have the aspirations of particle physics. When I did my thesis 64 years ago, I could do it alone in just 6 months and I could get worldwide interesting results. Now, experiments at CERN are made up of hundreds, if not thousands of people, working for 20 years to get a result. My thesis advisor was Enrico Fermi, and in 1953 – unless it was 1952, I’d done my thesis a few years before - he was asked to be t...

  20. Instructional Supervisory Practices of Headteachers and Teacher Motivation in Public Basic Schools in Anomabo Education Circuit

    Science.gov (United States)

    Esia-Donkoh, Kweku; Baffoe, Stella

    2018-01-01

    The study examined the supervisory practices of headteachers and how these supervisory practices relate with teacher motivation in public basic schools in the Anomabo Education Circuit of the Mfantseman Municipality in the Central Region of Ghana. Quantitative approach of the cross-sectional survey design was adopted. Using purposive and…

  1. Digital Citizenship Instruction in Pennsylvania Public Schools: School Leaders Expressed Beliefs and Current Practices

    Science.gov (United States)

    Suppo, Chris A.

    2013-01-01

    The purpose of this study was to investigate digital citizenship in Pennsylvania public schools based on the responses of school leaders including superintendents, curriculum coordinators, and technology coordinators. This study examined the relationship between Pennsylvania school leader's beliefs and the implementation of digital citizenship…

  2. The Rationalizing Logics of Public School Reform: How Cultural Institutions Matter for Classroom Instruction

    Science.gov (United States)

    Bridwell-Mitchell, E. N.

    2013-01-01

    The research herein uses a mixed methods approach to examine how organizational phenomena at the macro level of analysis translate into phenomena at the micro level. Specifically, the research attempts to explain how cultural institutions may translate into individual attitudes and actions, such as public school teachers' decisions about using…

  3. JACK - ANTHROPOMETRIC MODELING SYSTEM FOR SILICON GRAPHICS WORKSTATIONS

    Science.gov (United States)

    Smith, B.

    1994-01-01

    JACK is an interactive graphics program developed at the University of Pennsylvania that displays and manipulates articulated geometric figures. JACK is typically used to observe how a human mannequin interacts with its environment and what effects body types will have upon the performance of a task in a simulated environment. Any environment can be created, and any number of mannequins can be placed anywhere in that environment. JACK includes facilities to construct limited geometric objects, position figures, perform a variety of analyses on the figures, describe the motion of the figures and specify lighting and surface property information for rendering high quality images. JACK is supplied with a variety of body types pre-defined and known to the system. There are both male and female bodies, ranging from the 5th to the 95th percentile, based on NASA Standard 3000. Each mannequin is fully articulated and reflects the joint limitations of a normal human. JACK is an editor for manipulating previously defined objects known as "Peabody" objects. Used to describe the figures as well as the internal data structure for representing them, Peabody is a language with a powerful and flexible mechanism for representing connectivity between objects, both the joints between individual segments within a figure and arbitrary connections between different figures. Peabody objects are generally comprised of several individual figures, each one a collection of segments. Each segment has a geometry represented by PSURF files that consist of polygons or curved surface patches. Although JACK does not have the capability to create new objects, objects may be created by other geometric modeling programs and then translated into the PSURF format. Environment files are a collection of figures and attributes that may be dynamically moved under the control of an animation file. The animation facilities allow the user to create a sequence of commands that duplicate the movements of a

  4. A Study of Programs and Services: An Action Report. Montana State Dissemination Worksessions, Office of Public Instruction (Helena, Montana, November and December 1979 and January 1980).

    Science.gov (United States)

    Northwest Regional Educational Lab., Portland, OR.

    Input into the design, content, and development of a comprehensive resource tool--the Montana Educational Resources and Services notebook--was provided by the 16 members of a planning team made up of Office of Public Instruction (OPI) managers and consultants, selected Montana educators, and Northwest Regional Educational Laboratory Dissemination…

  5. Impact of social media as an instructional component on content knowledge, attitudes, and public engagement related to global climate change

    Science.gov (United States)

    Greenberg, Sallie E.

    Social media (SM) are considered important avenues to reach citizens and engage them in social change. Given the widespread use of SM and their potential to enhance communication, they could also have significant influence when used as an educational tool. Educators are exploring whether classroom SM use has instructional benefits, such as enhancing interactivity and engagement. It is critical to understand the potential of SM for creating meaningful learning environments and public engagement pathways. Much work remains to understand the use of SM in this context and how to use them effectively. This study draws on active learning theory to examine the impact of SM as an instructional component with community college students learning to make connections among science, social responsibility, and global understanding in an environmental biology course (the Course). Using global climate change as a theme, the Course included a Facebook instructional component. A pretest--posttest, nonrandomized comparison group design was used to measure the impact of Facebook as an integrated component of the Course. The treatment and comparison groups were determined to be comparable based on demographics, access and ownership of digital devices, and SM use despite non-random assignment. No statistically significant differences were found between groups on these factors. The intervention consisted of semester-long required use of Facebook for the treatment group. The impact of the SM intervention was measured in three areas: (a) content knowledge, (b) attitudes toward climate change, and (c) public engagement actions and intentions to act. At the conclusion of the Course, no discernable difference was measured in content knowledge gains between the two groups. However, students who used Facebook experienced statistically significant differences in attitude, becoming increasingly concerned about global climate change. The comparison group demonstrated statistically significant

  6. A novel integration of online and flipped classroom instructional models in public health higher education.

    Science.gov (United States)

    Galway, Lindsay P; Corbett, Kitty K; Takaro, Timothy K; Tairyan, Kate; Frank, Erica

    2014-08-29

    In 2013, a cohort of public health students participated in a 'flipped' Environmental and Occupational Health course. Content for the course was delivered through NextGenU.org and active learning activities were carried out during in-class time. This paper reports on the design, implementation, and evaluation of this novel approach. Using mixed-methods, we examined learning experiences and perceptions of the flipped classroom model and assessed changes in students' self-perceived knowledge after participation in the course. We used pre- and post-course surveys to measure changes in self-perceived knowledge. The post-course survey also included items regarding learning experiences and perceptions of the flipped classroom model. We also compared standard course review and examination scores for the 2013 NextGenU/Flipped Classroom students to previous years when the course was taught with a lecture-based model. We conducted a focus group session to gain more in-depth understanding of student learning experiences and perceptions. Students reported an increase in knowledge and survey and focus group data revealed positive learning experiences and perceptions of the flipped classroom model. Mean examination scores for the 2013 NextGenU/Flipped classroom students were 88.8% compared to 86.4% for traditional students (2011). On a scale of 1-5 (1 = lowest rank, 5 = highest rank), the mean overall rating for the 2013 NextGenU/Flipped classroom students was 4.7/5 compared to prior years' overall ratings of 3.7 (2012), 4.3 (2011), 4.1 (2010), and 3.9 (2009). Two key themes emerged from the focus group data: 1) factors influencing positive learning experience (e.g., interactions with students and instructor); and 2) changes in attitudes towards environmental and occupation health (e.g., deepened interest in the field). Our results show that integration of the flipped classroom model with online NextGenU courses can be an effective innovation in public health higher education

  7. Instruction No. 108, on handling of radioactive materials at Ministry of public health establishments

    International Nuclear Information System (INIS)

    1975-01-01

    The regulation applies to the design, construction, reconstruction, and operation of any medical establishment, facilities using radioactive substances for diagnostic, therapeutic, or research purposes. Designs for nuclear medicine laboratories (or departments) must be approbated by, and commissioning performed with the participation of representatives of the State Sanitary Control. Use of radioactive materials is licensed by the Ministry of Public Health and the Committee for Peaceful Uses of Atomic Energy. Radiation safety responsibility is assigned to a specific staff member of the laboratory (or department). Any receipt or transfer of radioactive material is entered into appropriate records, acts, or requests. Special storage facilities must be available; their design and equipment have to meet the particular requirements for the corresponding class of work, as determined by the activity levels, radiotoxicities, and physical conditions of the radioactive substances used. With storage of unsealed sources, the class is at least second. Sealed source treatment requires primarily protection from external exposure. In such cases provisions are made for one basic and one intermediate storage facility; an applicator preparation room; and application room; a sterilization room; a surgery room; wards; toilets and washrooms for patients treated; a routine manipulation room; and a stock room. A number of safety rules in handling sealed sources are listed. A detailed system of radiation protection safeguards and rules is prescribed with regard to ventilation, sewer systems, remote control devices, work clothing and gloves, etc. Handling of unsealed radioactive materials used for diagnostic or research purposes should meet the requirements placed upon the respective radioisotope laboratory class, which has to be at least second. (G.G.)

  8. Blended Learning vs. Traditional Instruction as a Predictor of Student Achievement in New York City Public Schools

    Science.gov (United States)

    Murray, Anthony

    2017-01-01

    This study explored the differences in student achievement on New York State standardized tests between blended learning and traditional instructional methodologies. Specifically, the study compared student achievement in iLearnNYC schools, to their peer schools that deliver instruction in a traditional manner. iLearnNYC is a blended learning…

  9. The Authority and Charismas of Jack Ma's Leadership

    Institute of Scientific and Technical Information of China (English)

    陈希

    2014-01-01

    Jack Ma is the top manager of Ali Baba group, with a strong leadership. He mixes autocratic leadership and charismatic leadership together. The powers he used are from his position, the reward system of the company and the charismas to gain his leading power. In addition, he uses his charismas and his achievements to win the trust of the employees, which develop his leadership.

  10. Book Review: Jack Simons: Teacher, Scholar, Comrade: A Jacana ...

    African Journals Online (AJOL)

    Book Title: Jack Simons: Teacher, Scholar, Comrade: A Jacana Pocket Biography. Book Author: Hugh Macmillan. Jacana: Auckland Park, 2016. 167 pp. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · AJOL African Journals Online. HOW TO USE AJOL.

  11. Geographic variation of jack pine (Pinus banksiana Lamb.)

    Science.gov (United States)

    Jung Oh Hyun

    1977-01-01

    Ten traits were measured on 10-year-old jack pine grown at Cloquet, Minnesota, from seed collected from 90 provenances. The traits were examined by using analysis of variance and computing correlations for all combinations of 9 traits plus latitude , longitude, and elevation of the seed sources and cluster analyses using the D2 values from the...

  12. JACK LONDON ETNÓLOGO AMATEUR DEL PUGILISMO

    Directory of Open Access Journals (Sweden)

    Loïc Wacquant

    2012-12-01

    Full Text Available De los relatos que Jack London ha consagrado al boxeo, A Piece of Steak es sin dudas aquel que merece hoy nuestra mayor atención, e incluso un lugar en el panteón de los textos literarios sobre el Noble Arte, y junto a él otros tres títulos...

  13. Functional properties of unmodified and modified Jack bean ...

    African Journals Online (AJOL)

    The native Jack bean (Canavalia eniformis) starch was chemically modified through oxidation and acetylation. Proximate composition analysis revealed higher moisture, protein, fat and ash contents 'native unmodified than modified starches and higher yield in modified starches. Swelling capacity and solubility of all the ...

  14. Recollections of Jack Michael and the Application of Skinner's Analysis of Verbal Behavior

    Science.gov (United States)

    Sundberg, Mark L.

    2017-01-01

    Jack Michael offered a course on verbal behavior almost every year throughout his teaching career. Jack was also interested in the application of Skinner's work and in 1976 began to offer a graduate course at Western Michigan University titled Verbal Behavior Applications. Jack and his students pursued the application of Skinner's work on verbal…

  15. Psychoanalysis of Jack London's "The Call of the Wild" and "White Fang"

    Science.gov (United States)

    Yang, Hongyan

    2015-01-01

    "The Call of the Wild" and "White Fang" both are masterpieces of Jack London. The protagonists Buck and White Fang are the incarnation of Jack himself to some extent for the two novels reveal a great deal of the writer. This essay aims at psychoanalyzing Jack London's creative process, the Oedipus complex and the confliction…

  16. Jack-o'-Lantern and nuclear mushrooms

    International Nuclear Information System (INIS)

    Charpak, G.; Garwin, R.

    1997-01-01

    Is the humanity survival threatened by the use of nuclear energy? Do nuclear power plants stand risks? and if the answer is yes what kind of risks? Georges Charpak, physicist, Nobel price of physics, member of Academy of Science (Paris) and Richard L. Garwin, physicist, member of National Academy of Science (Washington) bring some answers: what is the fission, what is the fusion, the neutron, the PWR reactors, the fast neutrons reactors, the three miles island accident and the Chernobyl accident, their effect on public opinion, the radiations and the living, the nuclear wastes and the becoming of nuclear weapons. (N.C.)

  17. Footprint study in children during the Jack test

    OpenAIRE

    Pinto, José Antonio; Saito, Edgar; Lira Neto, Ozório Almeida; Rowinski, Sérgio; Blumetti, Francesco Camara; Dobashi, Eiffel Tsuyoshi

    2011-01-01

    OBJETIVO: Avaliar as impressões plantares durante o teste de Jack em crianças quantificando e observando os resultados numa faixa etária crítica para a formação do arco plantar. MÉTODO: Avaliamos 60 crianças brancas (120 pés) sendo 35 meninos e 25 meninas com idades entre 2 e 5 anos, sem queixas ortopédicas. Simulamos o teste de Jack com uma órtese em cunha de 45º apoiada sob o hálux. Obtivemos impressões em apoio monopodálico bilateralmente utilizando um pedígrafo. O exame dividiu-se em dua...

  18. Inflatable Indian travel pillow as a pneumatic patient jack

    Directory of Open Access Journals (Sweden)

    Gopalakrishna A

    2006-01-01

    Full Text Available The Indian travel pillow readily available in the market has been utilized as a patient jack in the operation theatre. This has been used to raise the shoulders of an anaesthetized patient for surgery in the head and neck region and a set of two pillows have been used to prop-up a prone anaesthetized patient. This allows smooth positioning of the patient after intubation without disturbance to the airway with minimal manpower.

  19. Seeing is believing -- SpyJack system investigates field problems

    International Nuclear Information System (INIS)

    O'Meara, D.

    1998-01-01

    The SpyJack Remote Monitoring System, a stand-alone, single-site remote well monitoring system that works off its own embedded controller is described. The supervisory control and data acquisition (SCADA) unit, developed by CORE Technologies Inc., has an integrated voice/alarm system, monitoring sensors installed at remote well sites continuously 24 hours a day with a digital camera, with 300 degrees of visual confirmation capability. It can also be used as a surveillance tool against terrorism as has been shown in the case of some recent debilitating attacks on remote wells in Alberta. SpyJack monitors flow rates and pressures, pumpjack stroke rates, sucker rod temperature, load cell and engine shut-off relay, as well as ambient temperature, tank levels, and motion detection. At the office, SpyJack Well Management Interface uses nine drop-down screens to take users through the remote monitoring and control of each site. The screens include production sensors, line sensors, dyno chart, environmental/safety sensors and sensor information and set up. Currently under development is the unsolicited dial-out capability. When implemented the system will send out information at pre-determined times, such as every four hours, or at specific times during the day. Compressing images to enable speedier downloading is also being planned

  20. Individualization and Modularization of Vocational Education Instructional Materials. An Annotated Bibliography of Publications and Projects. Bibliography Series No. 32.

    Science.gov (United States)

    Magisos, Joel H., Comp.; Stakelon, Anne E., Comp.

    This annotated bibliography is designed to assist applicants for research grants under part C (section 131a) of the amendments to the Vocational Education Act of 1963 by providing access to documents, journal articles, and current projects related to the individualization and modularization of vocational education instructional materials. The…

  1. Programmed Instruction Revisited.

    Science.gov (United States)

    Skinner, B. F.

    1986-01-01

    Discusses the history and development of teaching machines, invented to restore the important features of personalized instruction as public school class size increased. Examines teaching and learning problems over the past 50 years, including motivation, attention, appreciation, discovery, and creativity in relation to programmed instruction.…

  2. Students Learning Physics While Lifting Themselves: A Simple Analysis of a Scissors Jack

    Science.gov (United States)

    Haugland, Ole Anton

    2017-01-01

    Every time I have to jack up my car, I am a bit surprised by how slowly the scissors jack works the higher I raise it, and close to maximum height I need very little force to turn the crank. This agrees well with the principle of simple machines. Since I have to jack up my car at least twice a year to change between winter tires and summer tires,…

  3. Visit at PFAFF Silberblau for follow -up of mechanical jacks fabrication for HF

    CERN Multimedia

    Hubert Gerwig

    2000-01-01

    The HF detctor is sitting on either side of the CMS experiment at a height of the beam, 8.79m This detector weighs 220 tons will be lifted in 4 steps on its working position. 4 mechanical jacks with 100t force each will act on each corner of rectangle of 5600mm x 3200mm. The individual main pieces of the jacks are shown here. Next step is the assembly of the jacks by putting together housing, groundplate, spindle, gear, worm gear etc. Delivery of the first 4 jacks in dec.2000

  4. The influence of musical cadence into aquatic jumping jacks kinematics.

    Science.gov (United States)

    Costa, Mário J; Oliveira, Cristiana; Teixeira, Genoveva; Marinho, Daniel A; Silva, António J; Barbosa, Tiago M

    2011-01-01

    The aim of this study was to analyze the relationships between the head-out aquatic exercise "Jumping jacks" kinematics and the musical cadence in healthy and fit subjects. Five young women, with at least one year of experience conducting head- out aquatic programs were videotaped in the frontal plane, with a pair of cameras providing a double projection (above and below the water surface). Subjects performed an incremental protocol of five bouts (120 b·min(-1), 135 b·min(-1), 150 b·min(-1), 165 b·min(-1) and 180 b·min(-1)) with 16 full cycles of the "Jumping jacks" exercise. Data processing and calculation of upper limbs' (i.e. hands), lower limbs' (i.e. feet) and center of mass' 2D linear velocity and displacement were computed with the software Ariel Performance Analysis System and applying the 2D-DLT algorithm. Subjects decreased the cycle period during the incremental protocol. Significant and negative relationships with the musical cadence were verified for the center of mass and upper limbs vertical displacement. On the other hand, for the lower limbs lateral velocity, a significant and positive relationship was observed. It is concluded that expert and fit subjects increase the lower limb's velocity to maintain the range of motion, while the upper limb's displacement is reduced to coupe the music cadence. Key pointsWhile performing the Jumping Jacks, expert and fit subjects increase their lower limbs segmental velocity to maintain the range of motion.The upper limbs displacement is reduced to maintain the music cadence.Expert and fit subjects present similar response for alternating or simultaneously head-out aquatic exercises when increasing the music cadence.

  5. Forest Modeling of Jack Pine Trees for BOREAS

    Science.gov (United States)

    Moghhadam, Mahta; Saatchi, Sasan

    1994-01-01

    As a part of the intensive field campaign for the Boreal forest ecosystem-atmosphere research (BOREAS) project in August 1993, the NASA/JPL AIRSAR covered an area of about 100 km by 100 km near the Prince Albert National Park in Saskatchewan, Canada. At the same time, ground-truth measurements were made in several stands which have been selected as the primary study sites, as well as in some auxiliary sites. This paper focuses on an area including Jack Pine stands in the Nipawin area near the park.

  6. Destructive Cholangitis in an Adult Jack Russell Terrier

    Directory of Open Access Journals (Sweden)

    Atsushi Kodama

    2012-01-01

    Full Text Available A 4-year-old female Jack Russell terrier dog exhibited vomiting and severe jaundice of the visible mucous membranes and skin. Ultrasonography revealed diffuse areas of high echogenicity and focal areas of low echogenicity in the left lobe of the liver. On macroscopic observation of the biopsied liver specimen, many scattered irregularly shaped red spots were observed on the liver surface and on the cut surface. Histopathologically, there was loss of the interlobular bile duct and cholangitis accompanied by infiltration of pigment-laden macrophages in the Glisson’s capsule. Therefore, in the present case the dog was diagnosed with destructive cholangitis.

  7. CoJACK: A High-Level Cognitive Architecture with Demonstrations of Moderators, Variability, and Implications for Situation Awareness

    Science.gov (United States)

    2012-01-01

    defined, to CoJACK (Ritter, Reifers, Klein, & Schoelles, 2007) based on task appraisal theory (e.g., Cannon, 1932; Lazarus & Folkman , 1984; Selye...Cambridge, MA: MIT Press. Lazarus , R. S., & Folkman , S. (1984). Stress, appraisal and coping. New York: Springer Publishing. Lovett, M. C., Daily, L...promising. 0 0.5 1 1.5 2 2.5 3 3.5 4 Java JACK Default CoJack CoJack Caffeine CoJack Challenged CoJack Threatened Agent Type Ta n k s D es tr o y e d

  8. Comparison of Sparse and Jack-knife partial least squares regression methods for variable selection

    DEFF Research Database (Denmark)

    Karaman, Ibrahim; Qannari, El Mostafa; Martens, Harald

    2013-01-01

    The objective of this study was to compare two different techniques of variable selection, Sparse PLSR and Jack-knife PLSR, with respect to their predictive ability and their ability to identify relevant variables. Sparse PLSR is a method that is frequently used in genomics, whereas Jack-knife PL...

  9. Using Black Light to Find Jack-Pine Budworm Egg Masses

    Science.gov (United States)

    Daniel T. Jennings

    1968-01-01

    Jack pine foliage infested with jack-pine budworm egg masses was examined under two kinds of light -- black light and a combination of natural and fluorescent light. Black light significantly increased the accuracy of count but not the efficiency of examination.

  10. Investigating the Jack the Ripper Case: Engaging Students in a Criminal Investigations Class through Active Learning

    Science.gov (United States)

    Gutierrez, Daniel; Kazmi, Syed

    2010-01-01

    The present study examines the utilization of a class project involving the Jack the Ripper murders. Students enrolled in a criminal investigations class were required to investigate the five canonical murders associated with the infamous serial killer known as Jack the Ripper and the murders that occurred in London during 1888. This paper…

  11. The characters God and Hamlet by Jack Miles

    Directory of Open Access Journals (Sweden)

    Tania de Fátima da Silva

    2015-04-01

    Full Text Available In the book “God - A Biography,” Jack Miles aims to introduce ourselves Creator-God as a literary character. Miles developed a narrative based on concept aristotelian, in other words, the structure of the work is made from beginning to end. This procedure established a harmony arising from the interaction between the parties, which contributes to scrutinize the precise details of the story of the main protagonist. We decided to highlight that time some characteristics of the main character of the work and compare them to the character Hamlet, by William Shakespeare, because from the beginning of the narrative to completion Miles calls the reader’s attention to the play Shakespeare.

  12. Applying the vantage PDMS to jack-up drilling ships

    Science.gov (United States)

    Yin, Peng; Chen, Yuan-Ming; Cui, Tong-Kai; Wang, Zi-Shen; Gong, Li-Jiang; Yu, Xiang-Fen

    2009-09-01

    The plant design management system (PDMS) is an integrated application which includes a database and is useful when designing complex 3-D industrial projects. It could be used to simplify the most difficult part of a subsea oil extraction project—detailed pipeline design. It could also be used to integrate the design of equipment, structures, HVAC, E-ways as well as the detailed designs of other specialists. This article mainly examines the applicability of the Vantage PDMS database to pipeline projects involving jack-up drilling ships. It discusses the catalogue (CATA) of the pipeline, the spec-world (SPWL) of the pipeline, the bolt tables (BLTA) and so on. This article explains the main methods for CATA construction as well as problem in the process of construction. In this article, the authors point out matters needing attention when using the Vantage PDMS database in the design process and discuss partial solutions to these questions.

  13. A-jacks and Aquawrap installations in Utah : scour revetment performance evaluation, final report, December 2009.

    Science.gov (United States)

    2009-12-01

    This is a performance evaluation report for A-Jacks, an articulated concrete block designed to protect bridge elements exposed to the river scouring forces, and for Aquawrap, a glass fiber reinforced polymer designed to protect and strengthen bridge ...

  14. Léon Lederman, Mel Schwartz and Jack Steinberger wre awarded the 1988 Nobel Physics Prize.

    CERN Multimedia

    Photographic Service

    1988-01-01

    Léon Lederman (left), Mel Schwartz (right) and Jack Steinberger were awarded the 1988 Nobel Physics Prize for their 1962 experiment at Brookhaven which showed that neutrinos come in more than one kind.

  15. TOPOLOGICAL STRUCTURE AND MOBILITY OF THE MECHANISMS USED IN CAR MECHANICAL JACKS

    Directory of Open Access Journals (Sweden)

    Viorica VELIȘCU

    2015-05-01

    Full Text Available This paper presents a structural analysis of the mechanism of high topological type jack - screw and translator rectilinear- patina and mobility mechanism analysis using various generally applicable formulas.

  16. Jacking mechanism for upper internals structure of a liquid metal nuclear reactor

    International Nuclear Information System (INIS)

    Gillett, J.E.; Wineman, A.L.

    1983-01-01

    A jacking mechanism for raising the upper internals structure of a liquid metal nuclear reactor which jacking mechanism uses a system of gears and drive shafts to transmit force from a single motor to four mechanically synchronized ball jacks to raise and lower support columns which support the upper internals structure. The support columns each have a pin which rides in a slot in a housing fixed to the reactor head. The pin has two locking plates which can be rotated around the pin to bring the locking plates into engagement with the housing in a raised or a lowered position of the support column such that the support column is then supported by the locking plate and not by the ball screw jacks. (author)

  17. Teistsugune vaade juhtide tasustamisele / Jack Welch, Suzy Welch ; intervjueerinud Stefan Eiselin

    Index Scriptorium Estoniae

    Welch, Jack

    2010-01-01

    USA juhtimisspetsialistide Jack ja Suzy Welchi hinnangul võib tippjuhtidele makstava palga ümber kerkinud poleemika üks võimalikke põhjuseid lisaks halvale kommunikatsioonile olla ka ideoloogiate kokkusobimatus

  18. Topological color codes on Union Jack lattices: a stable implementation of the whole Clifford group

    International Nuclear Information System (INIS)

    Katzgraber, Helmut G.; Bombin, H.; Andrist, Ruben S.; Martin-Delgado, M. A.

    2010-01-01

    We study the error threshold of topological color codes on Union Jack lattices that allow for the full implementation of the whole Clifford group of quantum gates. After mapping the error-correction process onto a statistical mechanical random three-body Ising model on a Union Jack lattice, we compute its phase diagram in the temperature-disorder plane using Monte Carlo simulations. Surprisingly, topological color codes on Union Jack lattices have a similar error stability to color codes on triangular lattices, as well as to the Kitaev toric code. The enhanced computational capabilities of the topological color codes on Union Jack lattices with respect to triangular lattices and the toric code combined with the inherent robustness of this implementation show good prospects for future stable quantum computer implementations.

  19. An experimental study of the mechanism of failure of rocks under borehole jack loading

    Science.gov (United States)

    Van, T. K.; Goodman, R. E.

    1971-01-01

    Laboratory and field tests with an experimental jack and an NX-borehole jack are reported. The following conclusions were made: Under borehole jack loading, a circular opening in a brittle solid fails by tensile fracturing when the bearing plate width is not too small. Two proposed contact stress distributions can explain the mechanism of tensile fracturing. The contact stress distribution factor is a material property which can be determined experimentally. The borehole tensile strength is larger than the rupture flexural strength. Knowing the magnitude and orientation of the in situ stress field, borehole jack test results can be used to determine the borehole tensile strength. Knowing the orientation of the in situ stress field and the flexural strength of the rock substance, the magnitude of the in situ stress components can be calculated. The detection of very small cracks is essential for the accurate determination of the failure loads which are used in the calculation of strengths and stress components.

  20. NAGT: Partnering to Expand and Improve the Teaching of Earth Sciences at all Levels of Instruction while Increasing Earth Literacy to the General Public

    Science.gov (United States)

    Herbstrith, K. G.

    2016-12-01

    Now more than ever, we need an Earth literate public and a workforce that can develop and be engaged in viable solutions to current and future environmental and resource challenges. The National Association of Geoscience Teachers (NAGT) is a member driven organization dedicated to fostering improvement in the teaching of the Earth Sciences at all levels of formal and informal instruction, to emphasizing the cultural significance of the Earth sciences and to disseminating knowledge in this field to the general public. NAGT offers a number of ways to partner and collaborate including our sponsored sessions, events and programs; two publications; workshop programming; three topical focused divisions; educational advocacy; and website offerings hosted through the Science Education Resource Center (SERC). A growing number of associations, institutions, projects, and individual educators are strengthening their professional networks by partnering with NAGT. Locating and connecting members of the Earth education community with shared values and interest is an important part of collaborating and NAGT's topical divisions assist community members who wish to work on the topics of 2-year college faculty, geoscience education research, and teacher preparation. The NAGT website and the linked websites of its collaborating partners provides a peer reviewed venue for educators to showcase their pedagogy and to learn best practices of others. The annual Earth Educators' Rendezvous is an opportunity to network face-to-face with the Earth education community, strengthening our relationships while working with those who share our interests and challenges while also learning from those who have divergent experiences. NAGT is a non-profit organization that advocates for the advancement of the geosciences and supports the work of Earth educators and geoscience education researchers. For more information about NAGT, visit our website at www.nagt.org

  1. JackEx: The new digital manufacturing resource for optimization of Exoskeleton-based factory environments

    OpenAIRE

    Constantinescu, Carmen; Mureșan, Paul Cristian; Simon, Gabriel-Marian

    2016-01-01

    The employment of Exoskeletons for manual handling work in manufacturing industries aims at increased employment, productivity, safety and security at workplace. This paper highlights several challenges, current results and future steps of our work in optimization of Exoskeleton based factory environments. “JackEx” is the enhancement of the standard digital humanoid “Jack” with concepts and elements of passive Exoskeletons. For the development of JackEx, a new digital manufacturing resource, ...

  2. A Group Interview about Publishing with Professor Jack Zipes

    Directory of Open Access Journals (Sweden)

    Emma Louise Parfitt

    2016-10-01

    Full Text Available The conversation piece is the product of a group interview with Professor Jack Zipes and provides useful insights about publishing for early career researchers across disciplines. Based on his wider experiences as academic and writer, Professor Zipes answered questions from PhD researchers about: writing books, monographs and edited collections; turning a PhD thesis into a monograph; choosing and approaching publishers; and the advantages of editing books and translations. It presents some general advice for writing and publishing aimed at postgraduate students. Professor Zipes is an Emeritus Professor at the University of Minnesota Twin Cities, United States, a world expert on fairy tales and storytelling highlighting the social and historical dimensions of them. Zipes has forty years of experience publishing academic and mass-market books, editing anthologies, and translating work from French, German and Italian. His best known books are Breaking the Magic Spell (1979, Fairy Tales and the Art of Subversion (1983, The Irresistible Fairy Tale: The Cultural and Social History of a Genre (2012, and The Original Folk and Fairy Tales of the Brothers Grimm (2014.

  3. Multi-function magnetic jack control drive mechanism

    International Nuclear Information System (INIS)

    Bollinger, L.R.; Crawford, D.C.

    1986-01-01

    A multi-function magnetic jack control drive mechanism is described for controlling a nuclear reactor comprising: an elongate pressure housing; closely-spaced drive rods located in the pressure housing, the drive rod being connected to a reactor rod which is insertable in a reactor core; electrochemical stationary latch means which are selectively actuatable for holding a respective one of the drive rods stationary with respect to the pressure housing, the plurality of stationary latch means including at least one coil located about the pressure housing; longitudinally spaced electromechanical movable latch means, individually associated with one of the drive rods and each including a base for the drive rod associated therewith, for, when actuated, holding the associated drive rod stationary with respect to the base associated therewith, the movable latch means including an associated coil located about the pressure housing; and longitudinally spaced electromechanical lift means, individually associated with the base, for, when actuated, moving an associated base longitudinally along the pressure housing from a first position to a second position to thereby enable movement of one or more of the other drive rods longitudinally independently of the other drive rods in response to sequential and repeated operation of the electromechanical means, the lift means including an associated coil located about the pressure housing

  4. Jacking mechanism for upper internals structure of a liquid metal nuclear reactor

    International Nuclear Information System (INIS)

    Gillett, J.E.; Wineman, A.L.

    1984-01-01

    A jacking mechanism is described for raising the upper internals structure of a liquid metal nuclear reactor which jacking mechanism uses a system of gears and drive shafts to transmit force from a single motor to four mechanically synchronized ball jacks to raise and lower support columns which support the upper internals structure. The support columns have a pin structure which rides up and down in a slot in a housing fixed to the reactor head. The pin has two locking plates which can be rotated around the pin to bring bolt holes through the locking plates into alignment with a set of bolt holes in the housing, there being a set of such housing bolt holes corresponding to both a raised and a lowered position of the support column. When the locking plate is so aligned, a surface of the locking plate mates with a surface in the housing such that the support column is then supported by the locking plate and not by the ball jacks. Since the locking plates are to be installed and bolted to the housing during periods of reactor operation, the ball jacks need not be sized to react the large forces which occur or potentially could occur on the upper internals structure of the reactor during operation. The locking plates react these loads. The ball jacks, used only during refueling, can be smaller, which enable conventionally available equipment to fulfill the precision requirements for the task within available space

  5. INSTRUCTIONAL MATERIALS CATALOG.

    Science.gov (United States)

    Ohio Vocational Agriculture Instructional Materials Service, Columbus.

    THE TITLE, IDENTIFICATION NUMBER, DATE OF PUBLICATION, PAGINATION, A BRIEF DESCRIPTION, AND PRICE ARE GIVEN FOR EACH OF THE INSTRUCTIONAL MATERIALS AND AUDIOVISUAL AIDS INCLUDED IN THIS CATALOG. TOPICS COVERED ARE FIELD CORPS, HORTICULTURE, ANIMAL SCIENCE, SOILS, AGRICULTURAL ENGINEERING, AND FARMING PROGRAMS. AN ORDER FORM IS INCLUDED. (JM)

  6. Stress analysis of jacks, frame and bearing connections, and drill rod for core sampler truck No. 2

    International Nuclear Information System (INIS)

    Ziada, H.H.

    1995-01-01

    This analysis evaluates the structural design adequacy of several components and connections for the rotary mode core sampler truck (RMCST) No. 2. This analysis was requested by the Characterization Equipment Group (WHC 1994a). The components addressed in this report are listed below: front jack assembly and connection to the truck chassis; rear jack assembly and connection to the truck chassis; center outrigger jacks and connection to the truck chassis; lower frame assembly and connection to the truck chassis; bolt connections for bearing plate assembly (for path of maximum load); traverse slide brackets and mounting of the traverse jack cylinders; and drill rod (failure loads)

  7. Black-tailed jack rabbit movements and habitat utilization at the Idaho National Engineering Laboratory radioactive waste management complex

    International Nuclear Information System (INIS)

    Grant, J.C.

    1983-01-01

    In June 1982, a study of black-tailed jack rabbit (Lepus californicus) ecology was initiated at the Idaho National Engineering Laboratory Radioactive Waste Management Complex (RWMC). This study will provide data necessary to evaluate the role of jack rabbits in radionuclide transport away from the Subsurface Disposal Area of the RWMC. Primary goals are to document radionuclide concentrations in jack rabbit tissues, and determine population size, movement patterns, habitat use, and food habits of jack rabbits inhabiting the RWMC area. Study design and prelimianry results are discussed

  8. Publicity.

    Science.gov (United States)

    Chisholm, Joan

    Publicity for preschool cooperatives is described. Publicity helps produce financial support for preschool cooperatives. It may take the form of posters, brochures, newsletters, open house, newspaper coverage, and radio and television. Word of mouth and general good will in the community are the best avenues of publicity that a cooperative nursery…

  9. An Analytical Method for Jack-Up Riser’s Fatigue Life Estimation

    Directory of Open Access Journals (Sweden)

    Fengde Wang

    2018-01-01

    Full Text Available In order to determine whether a special sea area and its sea state are available for the jack-up riser with surface blowout preventers, an analytical method is presented to estimate the jack-up riser’s wave loading fatigue life in this study. In addition, an approximate formula is derived to compute the random wave force spectrum of the small-scale structures. The results show that the response of jack-up riser is a narrow band random vibration. The infinite water depth dispersion relation between wavenumber and wave frequency can be used to calculate the wave force spectrum of small-scale structures. The riser’s response mainly consists of the additional displacement response. The fatigue life obtained by the formula proposed by Steinberg is less than that of the Bendat method.

  10. The Bildungsroman Tradition: The Philosophical Maturation of Jack Burden in All the King’s Men

    Directory of Open Access Journals (Sweden)

    Bassam M. Al-Shraah

    2017-11-01

    Full Text Available This paper aims to sketch out the transformation that Jack Burden—the main character in the novel—had gone through. With all the political leanings in Warren’s All the king’s Men, Jack burden seems to have had developed his own theories of dealing with life and people all through his life. He has always suffered an inferiority complex, rendering himself unworthy of being a real human being. This paper claims that Jack’s philosophical transformation has passed through three distinct phases; he had changed from a carefree idealist to a man of moral responsibility much similar to a Bildungsroman style of character maturation. Difficult times that Jack Burden has gone through caused his awakening at the end of the novel ushering his maturation

  11. Purification, crystallization and preliminary X-ray analysis of urease from jack bean (Canavalia ensiformis)

    International Nuclear Information System (INIS)

    Balasubramanian, Anuradha; Ponnuraj, Karthe

    2009-01-01

    Jack bean urease was purified and crystallized and X-ray diffraction data were collected to 2.05 Å resolution. Plant urease is a seed protein that is common in most legumes. It is also common in many bacteria and fungi and several species of yeast. Urease allows organisms to use exogenous and internally generated urea as a nitrogen source by catalyzing the hydrolysis of urea to ammonia and carbon dioxide. Urease from jack bean meal was purified to electrophoretic homogeneity using a series of steps involving acetone precipitation and size-exclusion and ion-exchange chromatography. The jack bean urease was crystallized and the resulting crystals diffracted to 2.05 Å resolution using synchrotron radiation. The crystals belonged to the hexagonal space group P6 3 22, with unit-cell parameters a = b = 138.57, c = 198.36 Å

  12. Spin-singlet quantum Hall states and Jack polynomials with a prescribed symmetry

    International Nuclear Information System (INIS)

    Estienne, Benoit; Bernevig, B. Andrei

    2012-01-01

    We show that a large class of bosonic spin-singlet Fractional Quantum Hall model wavefunctions and their quasihole excitations can be written in terms of Jack polynomials with a prescribed symmetry. Our approach describes new spin-singlet quantum Hall states at filling fraction ν=(2k)/(2r-1) and generalizes the (k,r) spin-polarized Jack polynomial states. The NASS and Halperin spin-singlet states emerge as specific cases of our construction. The polynomials express many-body states which contain configurations obtained from a root partition through a generalized squeezing procedure involving spin and orbital degrees of freedom. The corresponding generalized Pauli principle for root partitions is obtained, allowing for counting of the quasihole states. We also extract the central charge and quasihole scaling dimension, and propose a conjecture for the underlying CFT of the (k,r) spin-singlet Jack states.

  13. Estudo da impressão plantar obtida durante o teste de Jack em crianças Footprint study in children during the Jack test

    Directory of Open Access Journals (Sweden)

    José Antonio Pinto

    2011-01-01

    Full Text Available OBJETIVO: Avaliar as impressões plantares durante o teste de Jack em crianças quantificando e observando os resultados numa faixa etária crítica para a formação do arco plantar. MÉTODO: Avaliamos 60 crianças brancas (120 pés sendo 35 meninos e 25 meninas com idades entre 2 e 5 anos, sem queixas ortopédicas. Simulamos o teste de Jack com uma órtese em cunha de 45º apoiada sob o hálux. Obtivemos impressões em apoio monopodálico bilateralmente utilizando um pedígrafo. O exame dividiu-se em duas etapas: com e sem o uso da órtese. A metodologia de Valenti e Volpon foi utilizada para mensurar as impressões plantares e os dados obtidos foram analisados estatisticamente. RESULTADOS: Os valores dos índices de Valenti e Volpon diminuiram quando a órtese foi utilizada. A diferença entre os índices com ou sem órtese diminuiu gradualmente com a progressão etária. CONCLUSÕES: É possível quantificar o teste de Jack pelwas impressões plantares pelo método de Valenti e Volpon. A variação do seu formato apresentou tendência a ser menor a partir dos 4 anos. O teste de Jack perdeu gradativamente a capacidade de modificar a impressão plantar com a idade, diminuindo sua acuidade como parâmetro de bom prognóstico na formação do arco longitudinal medial. Nível de Evidência: Nível IV, estudo descritivo observacional.OBJECTIVE: To assess the plantar impressions obtained in children during the Jack test, with the aim of quantifying and analyzing their variability in the critical period for plantar foot arch formation. METHOD: A hundred and twenty feet from 60 healthy White children, recruited in an outpatient pediatric clinic, were examined. Our sample included 35 boys and 25 girls, ranging from 2 to 5 years. The Jack test was simulated using a 45o wedge-shaped orthosis applied to the hallux. Bilateral plantar impressions were acquired in the alternate single-foot standing position using a pedigraph. Two plantar impressions were

  14. Modeling of the Jacked Pile Static Load Test with PLAX 3D

    Directory of Open Access Journals (Sweden)

    Tautvydas Statkus

    2016-12-01

    Full Text Available In this article jacked pile installation technology and its current processes, altering the base physical and mechanical characteristics are discussed. For the jacked pile static load test simulation Plax 3D software was selected, the opportunities and developments were described. Model building, materials, models, model geometry, finite elements, boundary conditions and assumptions adopted in addressing problems described in detail. Three different tasks formulated and load-settlement dependence a comparison of the results with the experiment given. Conclusions are formulated according to the modeling results.

  15. Structure and biomass production of one- to seven-year-old intensively cultured jack pine plantation in Wisconsin.

    Science.gov (United States)

    J. Zavitkovski; David H. Dawson

    1978-01-01

    Spacing and rotation length effects were studied for 7 years in intensively cultured jack pine stands. Production culminated at age 5 in the densest planting and progressively later in more open spacing. Biomass production was two to several times higher than in jack pine plantations grown under traditional silvicultural systems.

  16. Editorial - Instructions

    DEFF Research Database (Denmark)

    Kastberg, Peter; Grinsted, Annelise

    2007-01-01

    Why you may wonder - have we chosen a topic which at first glance may seem trivial, and even a bit dull? Well, looks can be deceiving, and in this case they are! There are many good reasons for taking a closer look at instructions.......Why you may wonder - have we chosen a topic which at first glance may seem trivial, and even a bit dull? Well, looks can be deceiving, and in this case they are! There are many good reasons for taking a closer look at instructions....

  17. Jack Mezirow's Conceptualisation of Adult Transformative Learning: A Review

    Science.gov (United States)

    Calleja, Colin

    2014-01-01

    This paper traces the evolution of Jack Mezirow's transformative learning theory and its conceptualisation. It discusses the three major influences, namely Thomas Khun's philosophical conception of paradigm, Freire's conception of conscientisation and consciousness growth, and Habermas' domains of learning and the discussion of…

  18. "Delays and Vexation": Jack London and the Russo-Japanese War.

    Science.gov (United States)

    Sweeney, Michael S.

    1998-01-01

    Contributes to scholarship on journalism history and censorship by discussing Jack London's efforts as a war correspondent to cover the Russo-Japanese War in Korea and Manchuria in 1904. Focuses on the difficulties he encountered as a result of systematic and highly restrictive censorship by the Japanese. (SR)

  19. Height and seasonal growth pattern of jack pine full-sib families

    Science.gov (United States)

    Don E. Riemenschneider

    1981-01-01

    Total tree height, seasonal shoot elongation, dates of growth initiation and cessation, and mean daily growth rate were measured and analyzed for a population of jack pine full-sib families derived from inter-provenance crosses. Parental provenance had no effect on these variables although this may have been due to small sample size. Progenies differed significantly...

  20. Asymptotic theory of generalized estimating equations based on jack-knife pseudo-observations

    DEFF Research Database (Denmark)

    Overgaard, Morten; Parner, Erik Thorlund; Pedersen, Jan

    2017-01-01

    A general asymptotic theory of estimates from estimating functions based on jack-knife pseudo-observations is established by requiring that the underlying estimator can be expressed as a smooth functional of the empirical distribution. Using results in p-variation norms, the theory is applied...

  1. Is the lateral jack-knife position responsible for cases of transient neurapraxia?

    Science.gov (United States)

    Molinares, Diana Margarita; Davis, Timothy T; Fung, Daniel A; Liu, John Chung-Liang; Clark, Stephen; Daily, David; Mok, James M

    2016-01-01

    The lateral jack-knife position is often used during transpsoas surgery to improve access to the spine. Postoperative neurological signs and symptoms are very common after such procedures, and the mechanism is not adequately understood. The objective of this study is to assess if the lateral jack-knife position alone can cause neurapraxia. This study compares neurological status at baseline and after positioning in the 25° right lateral jack-knife (RLJK) and the right lateral decubitus (RLD) position. Fifty healthy volunteers, ages 21 to 35, were randomly assigned to one of 2 groups: Group A (RLD) and Group B (RLJK). Motor and sensory testing was performed prior to positioning. Subjects were placed in the RLD or RLJK position, according to group assignment, for 60 minutes. Motor testing was performed immediately after this 60-minute period and again 60 minutes thereafter. Sensory testing was performed immediately after the 60-minute period and every 15 minutes thereafter, for a total of 5 times. Motor testing was performed by a physical therapist who was blinded to group assignment. A follow-up call was made 7 days after the positioning sessions. Motor deficits were observed in the nondependent lower limb in 100% of the subjects in Group B, and no motor deficits were seen in Group A. Statistically significant differences (p knife positioning for 60 minutes results in neurapraxia of the nondependent lower extremity. Our results support the hypothesis that jack-knife positioning alone can cause postoperative neurological symptoms.

  2. Pandemic Fear and Literature: Observations from Jack London’s The Scarlet Plague

    Centers for Disease Control (CDC) Podcasts

    2014-11-18

    Sarah Gregory reads an abridged version of the essay, Pandemic Fear and Literature: Observations from Jack London’s The Scarlet Plague.  Created: 11/18/2014 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 11/20/2014.

  3. Mosaic Stunting in jack pine seedlings in a northern Michigan bareroot nursery

    Science.gov (United States)

    Lynette Potvin; R. Kasten Dumroese; Martin F. Jurgensen; Dana Richter

    2010-01-01

    Mosaic, or patchy, stunting of bareroot conifer seedlings is thought to be caused by deficiencies of mycorrhizal fungi following fumigation, resulting in reduced nutrient uptake, particularly phosphorus. Mosaic stunting of jack pine (Pinus banksiana) seedlings was observed in 2005 at the USDA Forest Service JW Toumey Nursery in Watersmeet, MI. We initiated a study to...

  4. Habitat Preferences, Distribution Pattern, and Root Weight Estimation of Pasak Bumi (Eurycoma longifolia Jack.

    Directory of Open Access Journals (Sweden)

    Siti Masitoh Kartikawati

    2014-04-01

    Full Text Available Pasak bumi (Eurycoma longifolia Jack is one of non timber forest products with “indeterminate” conservation status and commercially traded in West Kalimantan. The research objective was to determine the potential of pasak bumi root per hectare and its ecological condition under natural habitat. Root weight of E. longifolia Jack was estimated using simple linear regression and exponential equation with stem diameter and height as independent variables. The results showed that the individual number of the population was 114 with the majority in seedling stage with 71 individuals (62.28%. The distribution was found in clumped pattern. Conditions of the habitat could be described as follows: daily average temperature of 25.6oC, daily average relative humidity of 73.6%, light intensity of 0.9 klx, and red-yellow podsolic soil with texture ranged from clay to sandy clay. The selected estimator model for E. longifolia Jack root weight used exponential equation with stem height as independent variable using the equation of Y= 21.99T0,010 and determination coefficient of 0.97. After height variable was added, the potential of E. longifolia Jack minimum root weight that could be harvested per hectare was 0.33 kg.Keywords: Eurycoma longifolia, habitat preference, distribution pattern, root weight

  5. Lithium in Jack Hills zircons: Evidence for extensive weathering of Earth's earliest crust

    Science.gov (United States)

    Ushikubo, Takayuki; Kita, Noriko T.; Cavosie, Aaron J.; Wilde, Simon A.; Rudnick, Roberta L.; Valley, John W.

    2008-08-01

    In situ Li analyses of 4348 to 3362 Ma detrital zircons from the Jack Hills, Western Australia by SIMS reveal that the Li abundances (typically 10 to 60 ppm) are commonly over 10,000 times higher than in zircons crystallized from mantle-derived magmas and in mantle-derived zircon megacrysts (typically Jack Hills zircons also have fractionated lithium isotope ratios ( δ7Li = - 19 to + 13‰) about five times more variable than those recorded in primitive ocean floor basalts (2 to 8‰), but similar to continental crust and its weathering products. Values of δ7Li below - 10‰ are found in zircons that formed as early as 4300 Ma. The high Li compositions indicate that primitive magmas were not the source of Jack Hills zircons and the fractionated values of δ7Li suggest that highly weathered regolith was sampled by these early Archean magmas. These new Li data provide evidence that the parent magmas of ancient zircons from Jack Hills incorporated materials from the surface of the Earth that interacted at low temperature with liquid water. These data support the hypothesis that continental-type crust and oceans existed by 4300 Ma, within 250 million years of the formation of Earth and the low values of δ7Li suggest that weathering was extensive in the early Archean.

  6. Jacks-of-all-trades? The effect of balanced skills on team performance

    NARCIS (Netherlands)

    Rosendahl Huber, L.; Sloof, R.; van Praag, M.

    2014-01-01

    Previous empirical studies have shown that solo entrepreneurs benefit from having balanced skills: Jacks-of-All-Trades (JATs) are better entrepreneurs than specialists are. Nowadays however, the majority of entrepreneurs start up and run ventures together in teams. In this paper we test whether the

  7. Impacts of fiber orientation and milling on observed crystallinity in jack pine

    Science.gov (United States)

    Umesh P. Agarwal; Sally A. Ralph; Richard S. Reiner; Roderquita K. Moore; Carlos Baez

    2014-01-01

    Influences of fiber orientation and milling on wood cellulose crystallinity were studied using jack pine wood. The fiber orientation effects were measured by sampling rectangular wood blocks in radial, tangential, and cross-sectional orientations. The influence of milling was studied by analyzing the unsieved and sieved milled wood fractions (all

  8. Uus valem otsustamiseks: 10-10-10 / Jack Welch, Suzy Welch

    Index Scriptorium Estoniae

    Welch, Jack

    2009-01-01

    Juhtimisspetsialistid Jack ja Suzy Welch tutvustavad enda loodud valemit 10-10-10, mis on elu juhtimise tööriist aitamaks langetada raskeid otsuseid, hinnates nende mõju 10 minuti, 10 kuu ja 10 aasta pärast

  9. 3-D habitat suitability of jack mackerel Trachurus murphyi in the Southeastern Pacific, a comprehensive study

    NARCIS (Netherlands)

    Bertrand, A.; Habasque, J.; Hattab, Tarek; Hintzen, N.T.; Ricardo, Oliveros Ramos; Gutierrez, M.; Demarcq, Herve; Gerlotto, F.

    2016-01-01

    South Pacific jack mackerel, Trachurus murphyi, has an ocean-scale distribution, from the South American coastline to New Zealand and Tasmania. This fish, captured by Humans since the Holocene, is nowadays heavily exploited and its population has decreased substantially since the mid-1990s. The

  10. Soil loss by water erosion in areas under maize and jack beans intercropped and monocultures

    Directory of Open Access Journals (Sweden)

    Pedro Luiz Terra Lima

    2014-04-01

    Full Text Available Adequate soil management can create favorable conditions to reduce erosion and water runoff, consequently increase water soil recharge. Among management systems intercropping is highly used, especially for medium and small farmers. It is a system where two or more crops with different architectures and vegetative cycles are explored simultaneously at the same location. This research investigated the effects of maize intercropped with jack bean on soil losses due to water erosion, estimate C factor of Universal Soil Losses Equation (USLE and how it can be affected by soil coverage. The results obtained also contribute to database generation, important to model and estimate soil erosion. Total soil loss by erosion caused by natural rain, at Lavras, Minas Gerais, Brazil, were: 4.20, 1.86, 1.38 and 1.14 Mg ha-1, respectively, for bare soil, maize, jack bean and the intercropping of both species, during evaluated period. Values of C factor of USLE were: 0.039, 0.054 and 0.077 Mg ha Mg-1 ha-1 for maize, jack bean and intercropping between both crops, respectively. Maize presented lower vegetation cover index, followed by jack beans and consortium of the studied species. Intercropping between species showed greater potential on soil erosion control, since its cultivation resulted in lower soil losses than single crops cultivation, and this aspect is really important for small and medium farmers in the studied region.

  11. Pivoting output unit control systems activated by jacks. [for controlling aircraft flaps

    Science.gov (United States)

    Belliere, P.

    1978-01-01

    An invention to be used for controlling aircraft flaps is described. It is applicable to control systems with two coaxial output units which pivot simultaneously with respect to two fixed units and which are activated by two opposed, straight coaxial jacks.

  12. Jack Nicholson: A Reel and Real-Life Contribution to Neurosciences.

    Science.gov (United States)

    Tripathi, Manjul; Purkayastha, Moushumi; Rai, Ashutosh; Mukherjee, Kanchan K

    2017-05-01

    Though primarily considered entertainment, cinema is a mirror of society. The portrayal of neurosciences is common in cinema, but none could do it better than Jack Nicholson. We give a brief overview of his contribution to neurosciences by analyzing his acting skills. Copyright © 2016 Elsevier Inc. All rights reserved.

  13. Constituents of the essential oils of Cinnamomum parthenoxylon (Jack) Nees from Vietnam

    NARCIS (Netherlands)

    Dung, N.X.; Moi, La Dinh; Hung, N.D.; Leclercq, P.A.

    1995-01-01

    The essential oils obtained by steam distillation of the root bark and wood of Cinnamomum parthenoxylon (Jack) Nees growing wild in Vietnam were investigated by a combination of GC and GC/MS. More than 30 compounds in the root bark oil, and about 20 components in the wood oil have been identified.

  14. Cadmium accumulation by jack-bean and sorghum in hydroponic culture.

    Science.gov (United States)

    Francato Zancheta, Ariana Carramaschi; De Abreu, Cleide Aparecida; Zambrosi, Fernando César Bachiega; de Magalhães Erismann, Norma; Andrade Lagôa, Ana Maria Magalhães

    2015-01-01

    Among the technologies used to recuperate cadmium (Cd) contaminated soils, phytoextraction are particularly important, where the selection of suitable plants is critical to the success of the soil remediation. Thus, the objectives of this study were to evaluate the responses of jack-bean and sorghum to Cd supply and to quantify Cd accumulation by these species grown in hydroponic culture. The plants were subjected to 0, 15, 30, or 60 μmol Cd L(-1) in the nutrient solution, and gas exchange, plant growth and Cd accumulation were measured at 25 days after starting Cd treatments. The Cd supply severely reduced growth of shoots and roots in both species. In jack-bean, Cd decreased photosynthesis by 56-86%, stomatal conductance by 59-85% and transpiration by 48-80%. The concentrations and amounts of Cd accumulated in the plant tissues were proportional to the metal supply in the nutrient solution. Sorghum was more tolerant than jack-bean to Cd toxicity, but the latter showed a greater metal concentration and accumulation in the shoot. Therefore, jack-bean would be more suitable than sorghum for use in Cd phytoremediation programs based on phytoextraction.

  15. IDENTIFIKASI METABOLIT SEKUNDER DAN AKTIVITAS ANTIBAKTERI EKSTRAK DAUN SUNGKAI (Peronema canescens JACK. TERHADAP BEBERAPA BAKTERI PATOGEN

    Directory of Open Access Journals (Sweden)

    Arsyik Ibrahim

    2012-12-01

    Full Text Available A research which identification of secondary metabolites and antibacterial activity test from methanol exstract of leaf Sungkai (Peronema canencens Jack to several pathogens bacterial, which aims to identification of secondary methabolites and determine the antibacterial activity from crude methanol extract of leaf Sungkai (P. canencens Jack. against Streptococcus mutans, Salmonella thyposa, Bacillus subtilis and Staphylococcus aureus bacteria. Material test obtained by maceration with methanol, then tested for activity. Minimum Inhibition Concentration (MIC value extract was determined by liquid dilution and the followed by scratches on solid media method.  Minimum Kill Concentration (KBM value extracts was determined by agar diffusion method with using paper disks.The results secondary metabolite identify form extracts of leaves P. canencens obtainable derived alkaloid, terpenoids - steroids, flavonoids, and tannin compounds. Methanol extract have the antibacterial activity. Minimum Inhibition Concentration (MIC value of extract is concentration of 20% for bacteria S. mutans, S.thiposa and S.aureus, while for the B. subtilis is konsentration of 15%. Minimum Kill Concentration (KBM values exstract at a concentration of 5% effective at killing S. mutans and S. thyposa bacteria, while the concentration of 1% effective to bacteria B.subtilis and S.aureus. Key words: P. canencens Jack,  antibacteria activity, S. mutans, S. thiposa, B. subtillis, S. aureus   ABSTRAK   Telah dilakukan penelitian identifikasi metabolit sekunder dan aktivitas antibakteri ekstrak metanol daun Sungkai (P.canencens Jack terhadap beberapa bakteri patogen. Penelitian ini bertujuan untuk mengidentifikasi metabolit sekunder dan mengetahui aktifitas antibakteri dan Kadar Hambat Minimum (KHM dan Nilai Kadar Bunuh Minimum (KBM ekstrak kasar metanol daun Sungkai (P.canencens Jack. terhadap bakteri  Streptococcus mutans, Salmonella thyposa, Bacillus subtilis dan

  16. Evaluation of the TSC Dolphin Computer Assisted Instructional System in the Chapter 1 Program of the District of Columbia Public Schools. Final Report 85-9.

    Science.gov (United States)

    Harris, Carolyn DeMeyer; And Others

    Dolphin is a computer-assisted instruction system used to teach and reinforce skills in reading, language arts, and mathematics. An evaluation of this system was conducted to provide information to TSC Division of Houghton Mifflin regarding its effectiveness and possible modifications to the system. The general design of the evaluation was to…

  17. Perceptions of Employment and Use of Part-Time Faculty among Chief Instructional Officers at Southern Association of Colleges and Schools-Accredited Public Associate's Colleges

    Science.gov (United States)

    Speer, Charlotte Nix

    2013-01-01

    Based on Yackee's (2000) study of the perceptions of chief instructional officers (CIOs) at community colleges accredited by North Central Association of Colleges and Schools (NCA), this study identified, described, and compared the perceptions of CIOs at institutions accredited by Southern Association of Colleges and Schools Commission on…

  18. The Impact of the Role of an Instructional Technology Facilitator on Teacher Efficacy in Classroom Technology Integration in Two Rural Public Schools in Northwestern North Carolina

    Science.gov (United States)

    Adams, Karri Campbell

    2015-01-01

    The purpose of this study was to contribute to a limited body of research on the impact of the role of the school-level instructional technology facilitator on teacher technology efficacy. This mixed-methods study involved the administration of a survey instrument designed to measure teacher technology efficacy, the Computer Technology Integration…

  19. Bulletin bibliographique sur l'E.A.O. (l'enseignement assiste par ordinateur) (Bibliographic Bulletin on Computer Assisted Instruction). Publication K-4.

    Science.gov (United States)

    LaForge, Lorne, Ed.

    The bibliography contains about 150 citations of journal articles, monographs, collected works, research reports, and essays drawn from the BIBELO database and concerning computer-assisted language instruction. The first half of the volume is an annotated bibliography in alphabetical order by author. The second section contains subject and…

  20. The Effect of Vocal Hygiene and Behavior Modification Instruction on the Self-Reported Vocal Health Habits of Public School Music Teachers

    Science.gov (United States)

    Hackworth, Rhonda S.

    2007-01-01

    This study examined the effects of vocal hygiene and behavior modification instruction on self-reported behaviors of music teachers. Subjects (N = 76) reported daily behaviors for eight weeks: water consumption, warm-up, talking over music/noise, vocal rest, nonverbal commands, and vocal problems. Subjects were in experimental group 1 or 2, or the…

  1. Instructional Partners, Principals, Teachers, and Instructional Assistants.

    Science.gov (United States)

    Indiana State Dept. of Public Instruction, Indianapolis.

    This handbook examines various topics of interest and concern to teachers as they work with instructional assistants forming a classroom instructional partnership and functioning as a team. These topics include: (1) instructional assistant qualifications; (2) duties--instructional, classroom clerical, auxillary; (3) factors to be considered when…

  2. Engineering task plan for upgrades to the leveling jacks on core sample trucks number 3 and 4; TOPICAL

    International Nuclear Information System (INIS)

    KOSTELNIK, A.J.

    1999-01-01

    Characterizing the waste in underground storage tanks at the Hanford Site is accomplished by obtaining a representative core sample for analysis. Core sampling is one of the numerous techniques that have been developed for use given the environmental and field conditions at the Hanford Site. Core sampling is currently accomplished using either Push Mode Core Sample Truck No.1 or; Rotary Mode Core Sample Trucks No.2, 3 or 4. Past analysis (WHC 1994) has indicated that the Core Sample Truck (CST) leveling jacks are structurally inadequate when lateral loads are applied. WHC 1994 identifies many areas where failure could occur. All these failures are based on exceeding the allowable stresses listed in the American Institute of Steel Construction (AISC) code. The mode of failure is for the outrigger attachments to the truck frame to fail resulting in dropping of the CST and possible overturning (Ref. Ziada and Hundal, 1996). Out of level deployment of the truck can exceed the code allowable stresses in the structure. Calculations have been performed to establish limits for maintaining the truck level when lifting. The calculations and the associated limits are included in appendix A. The need for future operations of the CSTS is limited. Sampling is expected to be complete in FY-2001. Since there is limited time at risk for continued use of the CSTS with the leveling controls without correcting the structural problems, there are several design changes that could give incremental improvements to the operational safety of the CSTS with limited impact on available operating time. The improvements focus on making the truck easier to control during lifting and leveling. Not all of the tasks identified in this ETP need to be performed. Each task alone can improve the safety. This engineering task plan is the management plan document for implementing the necessary additional structural analysis. Any additional changes to meet requirements of standing orders shall require a

  3. Cluster analysis on a sphere: Application to magnetizations from metasediments of the Jack Hills, Western Australia

    Science.gov (United States)

    Bono, Richard K.; Tarduno, John A.; Dare, Matthew S.; Mitra, Gautam; Cottrell, Rory D.

    2018-02-01

    Metasediments of the Jack Hills contain the oldest known terrestrial minerals in the form of zircons nearly 4.4 billion years old. Paleointensity data from these zircons provide evidence for a Hadean geodynamo as old as 4.2 billion years old. Given the importance of these zircons for constraining the earliest history of the core, it is vital to understand the fidelity of the zircon record. A fundamental aspect providing context for the preservation of primary magnetic signals is the nature of overprints predicted to have been imparted on rocks of the Jack Hills due to Archean to Proterozoic metamorphic events. To be viable magnetic records of a Hadean geodynamo, zircon magnetization directions should differ from these secondary magnetizations. To evaluate these secondary magnetizations, we report paleomagnetic analyses of a comprehensive sampling of 68 quartzite cobble-sized clasts from the Jack Hills metasediments ∼0.5 to 1.0 km from the Discovery Site (which has yielded the oldest zircons and paleofield estimates). While application of standard paleomagnetic tests suggests that the ensemble of cobble directions cannot be distinguished from those drawn from a random distribution, a new cluster analysis of directions on a sphere and non-parametric resampling approaches reveal significant directions amongst subsets of the data. One, isolated at the lowest temperature analyzed [200 to 300 °C, Declination (Dec.) = 316.8°, Inclination (Inc.) = - 51.1 °] appears to be dominated by the present day field. Another, isolated at higher (but still relatively low unblocking temperatures that we call "intermediate", of ∼350-500 °C, Dec. = 243.8°, Inc. = 9.5°) agrees with a magnetic overprint isolated from the secondary Cr-Fe mica fuchsite isolated from the Jack Hills Discovery site, passing a field test at the 80% confidence level. No evidence is found in our data, or in the data of others collected on similar Jack Hills lithologies, for a widespread 1 Ga

  4. JackIn Head: Immersive Visual Telepresence System with Omnidirectional Wearable Camera.

    Science.gov (United States)

    Kasahara, Shunichi; Nagai, Shohei; Rekimoto, Jun

    2017-03-01

    Sharing one's own immersive experience over the Internet is one of the ultimate goals of telepresence technology. In this paper, we present JackIn Head, a visual telepresence system featuring an omnidirectional wearable camera with image motion stabilization. Spherical omnidirectional video footage taken around the head of a local user is stabilized and then broadcast to others, allowing remote users to explore the immersive visual environment independently of the local user's head direction. We describe the system design of JackIn Head and report the evaluation results of real-time image stabilization and alleviation of cybersickness. Then, through an exploratory observation study, we investigate how individuals can remotely interact, communicate with, and assist each other with our system. We report our observation and analysis of inter-personal communication, demonstrating the effectiveness of our system in augmenting remote collaboration.

  5. Historical wildlife dynamics on Dugway Proving Ground: population and disease trends in jack rabbits over two decades. [Lepus californicus

    Energy Technology Data Exchange (ETDEWEB)

    Eberhardt, L.E.; Van Voris, P.

    1986-08-01

    In an effort to determine whether US Army activities on the Dugway Proving Ground (DPG) have had an impact on resident wildlife, intensive studies have been conducted on the biology and ecology of the black-tailed jack rabbit (Lepus californicus) since 1965. in addition, the incidence of endemic diseases in several species of resident wildlife on the DPG have been studied from the late 1950s through the mid-1970s. The objectives of this report are to: (1) compile and summarize the jack rabbit data and some of the disease information that is presently contained only in annual reports; (2) compare the DPG jack rabbit data to data available on other jack rabbit populations; and (3) analyze the data for unusual or unexplained fluctuations in population densities or in incidence of disease.

  6. Seismic analysis of the frame structure reformed by cutting off column and jacking based on stiffness ratio

    Science.gov (United States)

    Zhao, J. K.; Xu, X. S.

    2017-11-01

    The cutting off column and jacking technology is a method for increasing story height, which has been widely used and paid much attention in engineering. The stiffness will be changed after the process of cutting off column and jacking, which directly affects the overall seismic performance. It is usually necessary to take seismic strengthening measures to enhance the stiffness. A five story frame structure jacking project in Jinan High-tech Zone was taken as an example, and three finite element models were established which contains the frame model before lifting, after lifting and after strengthening. Based on the stiffness, the dynamic time-history analysis was carried out to research its seismic performance under the EL-Centro seismic wave, the Taft seismic wave and the Tianjin artificial seismic wave. The research can provide some guidance for the design and construction of the entire jack lifting structure.

  7. In Search of the Real Mr. China Jack Perkowski's positive account of his business adventures in China

    Institute of Scientific and Technical Information of China (English)

    MATTHEW PLOWRIGHT

    2008-01-01

    @@ When former Wall Street banker Jack Perkowski first arrived in Hong Kong in 1990 looking to set up a business, not only did he not speak a word of the language, he had never even tasted Chinese food.

  8. Eesti saab 2018. aasta Londoni raamatumessil erilise tähelepanu osaliseks / Jacks Thomas ; intervjueerinud Priit Hõbemägi

    Index Scriptorium Estoniae

    Thomas, Jacks

    2017-01-01

    Intervjuu Euroopa ühe suurima, Londoni raamatumessi direktori Jacks Thomasiga, kes külastas Tallinna, et teha ettevalmistusi järgmiseks aastaks, kui Eesti koos teiste Baltimaadega on messi peakülaline

  9. Railway crossings: driving the structure under the railway by means of oleodinamic jacks

    OpenAIRE

    Escribano Méndez, Ramón; López Palomar, Rafael; Ruiz Viedma, Andrés J.

    1991-01-01

    "The best level crossing is a dead crossing", those involved are accustomed to say Yet, until a short time ago, eliminating these conflictive crossings not only implied a great deal of money but prolonged building work, with the all too familiar sequel of precautions, speed restrictions and problems for rail traffic. However, a brand new system, based on using hydraulic jacks to drive the concrete structure of the crossing to a different level in the track embankment, allows the execution in ...

  10. Rereading "The Jack-Roller:" Hidden Histories in Sociology and Social Work

    Science.gov (United States)

    Shaw, Ian

    2009-01-01

    I revisit one of the iconic Chicago School studies, Clifford Shaw's "The Jack-Roller". A naive reading of Shaw's book leaves the reader with a sense of having been inducted into a melange of what we now know as "sociology" and "social work," but which to Shaw seems a coherent stance. I suggest that this is close to the heart of how things were,…

  11. Effect of slaughter methods on the quality of Chilean jack mackerel (Trachurus murphyi) during refrigerated storage.

    Science.gov (United States)

    Lyu, Fei; Huang, Rui-Ji; Liu, Lin; Zhou, Xuxia; Ding, Yu-Ting

    2015-03-01

    The main objective of this study was to assess the influence of slaughter methods on the quality of Chilean jack mackerel (Trachurus murphyi) during refrigerated storage on board. Fishes were slaughtered by asphyxia in air (AA), asphyxia in ice water (AI) or stunning fish heads (SH), and the rigor mortis, pH, total volatile basic nitrogen (TVB-N), trimethylamine (TMA), 2-thiobarbituric acid reactive substances (TBARS) and sensory properties for the fishes were analyzed. On day 0, Chilean jack mackerel samples of AI group displayed higher pH values than those of AA and SH groups. TVB-N, TMA and TBARS values of all samples increased with the storage time, and these values of AI had a lower increase than AA and SH. Moreover, samples of AI had a better sensory score than AA and SH during storage. It can be concluded that slaughter method of asphyxia in ice water for Chilean jack mackerel exhibit the better efficiency on maintaining the fish quality during refrigerated storage on board.

  12. Variation of Time Domain Failure Probabilities of Jack-up with Wave Return Periods

    Science.gov (United States)

    Idris, Ahmad; Harahap, Indra S. H.; Ali, Montassir Osman Ahmed

    2018-04-01

    This study evaluated failure probabilities of jack up units on the framework of time dependent reliability analysis using uncertainty from different sea states representing different return period of the design wave. Surface elevation for each sea state was represented by Karhunen-Loeve expansion method using the eigenfunctions of prolate spheroidal wave functions in order to obtain the wave load. The stochastic wave load was propagated on a simplified jack up model developed in commercial software to obtain the structural response due to the wave loading. Analysis of the stochastic response to determine the failure probability in excessive deck displacement in the framework of time dependent reliability analysis was performed by developing Matlab codes in a personal computer. Results from the study indicated that the failure probability increases with increase in the severity of the sea state representing a longer return period. Although the results obtained are in agreement with the results of a study of similar jack up model using time independent method at higher values of maximum allowable deck displacement, it is in contrast at lower values of the criteria where the study reported that failure probability decreases with increase in the severity of the sea state.

  13. Instruction of 7 september 1989 on measures to be taken by the public authorities in case of an accident during the maritime transport of radioactive materials (Nucmar Plan)

    International Nuclear Information System (INIS)

    1989-09-01

    This Instruction of the Prime Minister called Plan Nucmar, defines the general principles for the organisation of measures to be taken by the authorities in case of an accident occurring during a civilian maritime transport of radioactive materials entailing or possibly entailing damage which would affect the health of man or the marine environment. The Plan applies to any accident occurring within French territorial waters and beyond them when the coast and related interests are endangered and concerns the transport of Class 7 materials (radioactive materials with a specific activity exceeding 70 Bq/kg) under the International Maritime Dangerous Goods Code [fr

  14. Jack Polynomials as Fractional Quantum Hall States and the Betti Numbers of the ( k + 1)-Equals Ideal

    Science.gov (United States)

    Zamaere, Christine Berkesch; Griffeth, Stephen; Sam, Steven V.

    2014-08-01

    We show that for Jack parameter α = -( k + 1)/( r - 1), certain Jack polynomials studied by Feigin-Jimbo-Miwa-Mukhin vanish to order r when k + 1 of the coordinates coincide. This result was conjectured by Bernevig and Haldane, who proposed that these Jack polynomials are model wavefunctions for fractional quantum Hall states. Special cases of these Jack polynomials include the wavefunctions of Laughlin and Read-Rezayi. In fact, along these lines we prove several vanishing theorems known as clustering properties for Jack polynomials in the mathematical physics literature, special cases of which had previously been conjectured by Bernevig and Haldane. Motivated by the method of proof, which in the case r = 2 identifies the span of the relevant Jack polynomials with the S n -invariant part of a unitary representation of the rational Cherednik algebra, we conjecture that unitary representations of the type A Cherednik algebra have graded minimal free resolutions of Bernstein-Gelfand-Gelfand type; we prove this for the ideal of the ( k + 1)-equals arrangement in the case when the number of coordinates n is at most 2 k + 1. In general, our conjecture predicts the graded S n -equivariant Betti numbers of the ideal of the ( k + 1)-equals arrangement with no restriction on the number of ambient dimensions.

  15. White Anglo-Saxon hopes and black Americans' Atlantic dreams: Jack Johnson and the British boxing colour bar.

    Science.gov (United States)

    Runstedtler, Theresa

    2010-01-01

    This article examines the controversy surrounding Jack Johnson's proposed world heavyweight title fight against the British champion Bombardier Billy Wells in London (1911). In juxtaposing African Americans' often glowing discussions of European tolerance with the actual white resistance the black champion faced in Britain, including the Home Office's eventual prohibition of the match, the article explores the period's transnational discourses of race and citizenship. Indeed, as white sportsmen on both sides of the Atlantic joined together in their search for a "White Hope" to unseat Johnson, the boxing ring became an important cultural arena for interracial debates over the political and social divisions between white citizens and nonwhite subjects. Although African Americans had high hopes for their hero's European sojourn, the British backlash against the Johnson-Wells match underscored the fact that their local experiences of racial oppression were just one facet of a much broader global problem. At the same time, the proposed prizefight also made the specter of interracial conflict in the colonies all the more tangible in the British capital, provoking public discussions about the merits of U.S. racial segregation, along with the need for white Anglo-Saxon solidarity around the world. Thus, this article not only exposes the underlying connections between American Jim Crow and the racialized fault lines of British imperialism, but it also traces the "tense and tender ties" linking U.S. and African American history with the new imperial history and postcolonial studies.

  16. Handwriting Instruction in Elementary Schools: Revisited!

    Science.gov (United States)

    Asher, Asha; Estes, Joanne

    2016-01-01

    Handwriting is an essential literacy and communication skill developed through a variety of instructional methods in elementary school. This study explored the consistency in handwriting instruction across grade levels in a Midwest public school district 15 years after the school initially implemented a uniform handwriting program. Additionally,…

  17. Instructing the Online Catalog User.

    Science.gov (United States)

    Miller, William

    1986-01-01

    This essay offers suggestions to make online public access catalogs (OPACs) less idiosyncratic and more usable. Discussion covers qualitative difference between online catalog and predecessors, challenge of debunking assumptions, skills for success, maintaining an instructional perspective, catalog development for the people by the people, and the…

  18. Sharing perspectives on English-medium instruction

    CERN Document Server

    Ackerley, Katherine; Helm, Francesca

    2017-01-01

    This volume gives voice to the views and experiences of researchers, lecturers, administrative staff, teacher trainers and students with regard to the implementation of English-medium instruction in a public university based in the north-east of Italy.

  19. 7 CFR 1212.103 - Instructions.

    Science.gov (United States)

    2010-01-01

    ... Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS..., PROMOTION, CONSUMER EDUCATION AND INDUSTRY INFORMATION ORDER Referendum Procedures § 1212.103 Instructions... information sources, without incurring advertising expense, to publicize the dates, places, method of voting...

  20. Determining the effect of different cooking methods on the nutritional composition of salmon (Salmo salar and chilean jack mackerel (Trachurus murphyi fillets.

    Directory of Open Access Journals (Sweden)

    José M Bastías

    Full Text Available The effect of four cooking methods was evaluated for proximate composition, fatty acid, calcium, iron, and zinc content in salmon and Chilean jack mackerel. The moisture content of steamed salmon decreased (64.94% compared to the control (68.05%; a significant decrease was observed in Chilean jack mackerel in all the treatments when compared to the control (75.37%. Protein content in both salmon and Chilean jack mackerel significantly increased under the different treatments while the most significant decrease in lipids was found in oven cooking and canning for salmon and microwaving for Chilean jack mackerel. Ash concentration in both salmon and Chilean jack mackerel did not reveal any significant differences. Iron and calcium content only had significant changes in steaming while zinc did not undergo any significant changes in the different treatments. Finally, no drastic changes were observed in the fatty acid profile in both salmon and Chilean jack mackerel.

  1. Determining the effect of different cooking methods on the nutritional composition of salmon (Salmo salar) and chilean jack mackerel (Trachurus murphyi) fillets

    Science.gov (United States)

    Balladares, Pamela; Acuña, Sergio; Quevedo, Roberto; Muñoz, Ociel

    2017-01-01

    The effect of four cooking methods was evaluated for proximate composition, fatty acid, calcium, iron, and zinc content in salmon and Chilean jack mackerel. The moisture content of steamed salmon decreased (64.94%) compared to the control (68.05%); a significant decrease was observed in Chilean jack mackerel in all the treatments when compared to the control (75.37%). Protein content in both salmon and Chilean jack mackerel significantly increased under the different treatments while the most significant decrease in lipids was found in oven cooking and canning for salmon and microwaving for Chilean jack mackerel. Ash concentration in both salmon and Chilean jack mackerel did not reveal any significant differences. Iron and calcium content only had significant changes in steaming while zinc did not undergo any significant changes in the different treatments. Finally, no drastic changes were observed in the fatty acid profile in both salmon and Chilean jack mackerel. PMID:28686742

  2. The Effect of Water Limitation on Volatile Emission, Tree Defense Response, and Brood Success of Dendroctonus ponderosae in Two Pine Hosts, Lodgepole, and Jack Pine

    OpenAIRE

    Lusebrink, Inka; Erbilgin, Nadir; Evenden, Maya L.

    2016-01-01

    The mountain pine beetle (MPB; Dendroctonus ponderosae) has recently expanded its range from lodgepole pine forest into the lodgepole × jack pine hybrid zone in central Alberta, within which it has attacked pure jack pine. This study tested the effects of water limitation on tree defense response of mature lodgepole and jack pine (Pinus contorta and Pinus banksiana) trees in the field. Tree defense response was initiated by inoculation of trees with the MPB-associated fungus Grosmannia clavig...

  3. Validation of on-site job-built guardrails with shoring jack as supports

    Directory of Open Access Journals (Sweden)

    Lan, A.

    2014-06-01

    Full Text Available To protect themselves against fall hazards in a slab-column frame, workers use the row of shoring jacks installed at 1 m from the edge as supports for on-site built guardrails. Inspectors of the Quebec Workers Compensation Board (Commission de la santé et de la sécurité du travail (CSST have expressed concern about the safety and compliance of these on-site built guardrails with the Quebec Safety Code for the Construction Industry (S-2.1, r.4. Some workers have also inquired if the shoring jack can be used as an anchor for a travel restraint system. The present study describes how an evaluation method and a test protocol have been used to verify if guardrails built on-site, with shoring jacks as supports, are safe and comply with the requirements of S-2.1, r.4 and if the shoring jack can be used as an anchor point for a travel restraint system. The results of the study show 1 guardrails built on site with shoring jacks as supports, are safe and comply with S-2.1, r.4 and 2 shoring jacks used as supports for guardrails must not be used as an anchor for a travel restraint system.Para la protección contra el peligro de caída en altura durante la ejecución de la estructura de un edificio, los trabajadores utilizan puntales acodalados a dos forjados y situados a 1 metro del borde de forjado como apoyo de las barandillas de seguridad. Inspectores de la Quebec Workers Compensation Board (Commision de la santé et de la sécurité du travail (CSST han expresado su preocupación por la seguridad y el cumplimiento de estos sistemas de protección en la construcción conforme al Código de Seguridad de Quebec para la industria de la construcción (S-2.1, R.6. Así mismo algunos trabajadores han mostrado su inquietud sobre la utilización de los puntales como sistemas para limitar el desplazamiento. El presente estudio describe un método de evaluación y un procedimiento de ensayo que se han utilizado para verificar si las barandillas de seguridad

  4. Guerra Federal e Instrucción Pública en las Memorias de los Secretarios del Gobierno Venezolano entre 1859 – 1863 / Federal War and Public Instruction in the reports of the Secretaries of the Venezuelan government between 1859 – 1863

    Directory of Open Access Journals (Sweden)

    Ramón Alexander Uzcátegui Pacheco

    2016-12-01

    Full Text Available La Guerra Federal fue la contienda bélica que involucró a los habitantes del territorio venezolano entre 1859 y 1863. Este acontecimiento histórico marca de forma decisiva la configuración política del Estado venezolano, incluso en la actualidad. Qué impacto tuvo este enfrentamiento social generalizado en la marcha de la instrucción pública. En este trabajo se analiza la exposición de las memorias que los Secretarios de gobierno presentan al Congreso Nacional o su equivalente entre 1858 y 1863. La revisión permite identificar los efectos de la guerra en la instrucción pública. Dependiendo de la orientación política del Gobierno, el Secretario encargado expresará su visión sobre la instrucción pública. La información que disponen los Secretarios pone en evidencia la gestión pública de la instrucción elemental, los colegios nacionales y la universidad en las circunstancias de la guerra civil. Serias dificultades en el funcionamiento de los centros de enseñanza se deducen de la lectura de la fuente indicada. Finalizada la guerra se propone fortalecer la instrucción pública como medio garante de la paz. Los efectos de la guerra en la institucionalidad educativa tendrán expresión en sus aspectos políticos doctrinarios con la incorporación histórica de la idea de libertad de enseñanza. Federal War and Public Instruction in the reports of the Secretaries of the Venezuelan government between 1859 – 1863 ABSTRACT The Federal War was the military conflict involved the inhabitants of Venezuela between 1859 and 1863. This historic event marked a decisive political configuration of the Venezuelan State, until today. What did impact this widespread social confrontation in the progress of public instruction? This paper is analyzed the expositions presented between 1858 and 1863 for government of Secretaries to Congress or its equivalent. The review can be identifies the effects of war on public education. Depending on the

  5. The Cholesterol Lowering Effects of Eurycoma longifolia Jack (Tongkat Ali Root Extract in Male Rats

    Directory of Open Access Journals (Sweden)

    Ghasak G Faisal

    2017-04-01

    Full Text Available Background: To investigate the effect of Eurycoma longifolia Jack root extract on serum lipids in rats. Methods: Twenty-six mature male albino Wistar rats were used in this study. A group of 18 rats were fed a high fat and high cholesterol diet for 4 weeks, after which their lipid profile was compared to the control group, who were kept on a normal diet. The rats were then further divided into three groups, the Cf group that continued to feed on a high fat and cholesterol diet only, and group A and group B who continued on a high fat diet with the addition of 5 mg/kg and 10 mg/kg of Eurycoma longifolia Jack root extract respectively for 4 weeks. After the 4 week period, the rat's lipid profiles were analysed again. Results: Group A and B showed significant total cholesterol reduction when compared to the Cf group, 140 ± 7.23, 139.63 ± 7.95, 192.14 ± 8.96 mg/dL respectively (p < 0.001. The total cholesterol/HDL ratio in group A was 5 however there was a sharp increase in group B to a high-risk level of 9.2 indicating a significant drop in HDL levels. The LDL level increased significantly in both group A and B compared to the Cf group. Conclusions: Eurycoma longifolia Jack root extract is effective in lowering total cholesterol, however the dose needs to be adjusted to prevent an excessive decrease in HDL levels.

  6. Secondary vegetation succession on jack pine (Pinus banksiana) cutovers in northeastern Ontario, Canada

    Energy Technology Data Exchange (ETDEWEB)

    Tiveau, Daniel

    2000-07-01

    The effects of different harvesting and site preparation methods on competing vegetation were studied in nine jack pine (Pinus banksiana) cutovers in northeastern Ontario, Canada. Six different treatments plus glyphosate herbiciding and no herbiciding were applied: 1) tree-length harvesting followed by trenching, and full-tree harvesting followed by five site preparations, 2) no site preparation, 3) trenching and 4) blading and compaction as well as blading followed by two planting densities, 5) 1.2m and 6) 2m. Competing vegetation was assessed preharvest and years 1, 2, 3, and 5 postharvest. Data was also available from nine juvenile sites as well as nine semimature sites. Data collection consisted of coverage values of each species as well as structural data for main life forms in height classes. Growth and health data of the planted jack pine seedlings were also available. The data was analyzed using detrended correspondence analysis (DCA), diversity indices and tabular analysis. Three years after the herbicide application there is no difference between the total coverage in the halfplots that have received herbiciding and those that have not, but an alteration of the relative abundance of species groups has developed; glyphosate herbiciding promotes grasses over shrubs. When no site preparation is applied, shrubs increase and compete with the seedlings, whose growth is cut in half compared to the ones that have been site prepared by trenching. Five years after blading, and blading plus compaction, there is still very little vegetation in the research plots, but there is no reduction of the survival rate and growth of the jack pine seedlings. More dense planting after this treatment leads to more competing vegetation, probably due to increased availability of moisture. Grasses do not seem to be affected by compaction and pioneer mosses are promoted by this treatment but compaction leads to a significant reduction of the total coverage of competing vegetation

  7. A sperm-agglutinating lectin from seeds of Jack fruit (Artocarpus heterophyllus).

    Science.gov (United States)

    Namjuntra, P; Muanwongyathi, P; Chulavatnatol, M

    1985-04-30

    A lectin specific for N-acetylgalactosamine was isolated from seed extract of Jack fruit (Artocarpus heterophyllus) by ammonium sulfate precipitation, followed by affinity chromatography on a Affigel-galactosamine-agarose column. The lectin possessed agglutinating activities for human and rat sperm as well as human red blood cells. It was found to have Mr = 62,000 consisting of two dissimilar subunits of Mr = 18,000 and 13,000. It also cross-reacted with an antibody against the lectin of Osage Orange (Maclura pomifera).

  8. Selected Problems of Sensitivity and Reliability of a Jack-Up Platform

    Directory of Open Access Journals (Sweden)

    Rozmarynowski Bogdan

    2018-03-01

    Full Text Available The paper deals with sensitivity and reliability applications to numerical studies of an off-shore platform model. Structural parameters and sea conditions are referred to the Baltic jack-up drilling platform. The sudy aims at the influence of particular basic variables on static and dynamic response as well as the probability of failure due to water waves and wind loads. The paper presents the sensitivity approach to a generalized eigenvalue problem and evaluation of the performace functions. The first order time-invariant problems of structural reliability analysis are under concern.

  9. A phyt osociological classification of the vegetation of the Jack Scott Nature Reserve*

    Directory of Open Access Journals (Sweden)

    B. J. Coetzee

    1974-12-01

    Full Text Available The vegetation of the Jack Scott Nature Reserve in the Central Bankenveld Veld Type is classified chiefly by the Braun-Blanquet Table Method. Habitat features, physiognomy, total floristic composition, differentiating species, woody plants and prominent grasses and forbs are presented for each community. Characterizing habitat features, in order of importance for the communities, are: exposure, soil texture, geology, slope, aspect, degree of rockiness and previous ploughing. The classification correlates well with the major physiographic and climatic variation in the Reserve and generally does not cut across main physiognomic types. The communities are potentially homogeneous management units.

  10. Narrativa visual de uma obra beat: os vagabundos iluminados de Jack Kerouac

    OpenAIRE

    TEJERO MARTINEZ, DIANA MARIA

    2014-01-01

    Este trabajo analiza las técnicas narrativas de los "cómics" aplicadas en la adaptación de la novela "Los vagabundos del Dharma" de Jack Kerouac. Se trata de un trabajo de investigación basado en los estudios de los teóricos Will Eisner y Scott McCloud y de la estudiosa de la adaptación Linda Hutcheon. En la inverstigación se exploran las posibilidades de los "cómics" como medio de expressión gráfica y las características de las adaptaciones de algunas obras...

  11. A Comparison Between Measured and Predicted Hydrodynamic Damping for a Jack-Up Rig Model

    DEFF Research Database (Denmark)

    Laursen, Thomas; Rohbock, Lars; Jensen, Jørgen Juncher

    1996-01-01

    An extensive set of measurements funded by the EU project Large Scale Facilities Program has been carried out on a model of a jack-up rig at the Danish Hydraulic Institute. The test serieswere conducted by MSC and include determination of base shears and overturning moments in both regular...... methods.In the comparison between the model test results and the theoretical predictions, thehydro-dynamic damping proves to be the most important uncertain parameter. It is shown thata relative large hydrodynamic damping must be assumed in the theoretical calculations in orderto predict the measured...

  12. Acheronta movebo. Resilencia y revolución en The Mexican (1911 de Jack London

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    Eduardo González de la Fuente

    2016-07-01

    Full Text Available Este artículo maneja uno de los relatos pugilísticos de Jack London, The Mexican (1911, para explorar el mundo del boxeo como lugar público de conflictos sociales e ideológicos identificados y significados en la proteica figura del boxeador. Así pues, el ring es susceptible de devenir y analizarse como un espacio de práctica política, de antagonismo y debate que, en su reglada exposición de violencias carnales y simbólicas, condensa una particular síntesis efectiva de corporalidades y discursos.

  13. Strategy Instruction in Mathematics.

    Science.gov (United States)

    Goldman, Susan R.

    1989-01-01

    Experiments in strategy instruction for mathematics have been conducted using three models (direct instruction, self-instruction, and guided learning) applied to the tasks of computation and word problem solving. Results have implications for effective strategy instruction for learning disabled students. It is recommended that strategy instruction…

  14. The effect of water limitation on volatile emission, tree defense response, and brood success of Dendroctonus ponderosae in two pine hosts, lodgepole and jack pine

    Directory of Open Access Journals (Sweden)

    Inka eLusebrink

    2016-02-01

    Full Text Available The mountain pine beetle (MPB; Dendroctonus ponderosae has recently expanded its range from lodgepole pine forest into the lodgepole × jack pine hybrid zone in central Alberta, within which it has attacked pure jack pine. This study tested the effects of water limitation on tree defense response of mature lodgepole and jack pine (Pinus contorta and Pinus banksiana trees in the field. Tree defense response was initiated by inoculation of trees with the MPB-associated fungus Grosmannia clavigera and measured through monoterpene emission from tree boles and concentration of defensive compounds in phloem, needles, and necrotic tissues. Lodgepole pine generally emitted higher amounts of monoterpenes than jack pine; particularly from fungal-inoculated trees. Compared to non-inoculated trees, fungal inoculation increased monoterpene emission in both species, whereas water treatment had no effect on monoterpene emission. The phloem of both pine species contains (--α-pinene, the precursor of the beetle’s aggregation pheromone, however lodgepole pine contains two times as much as jack pine. The concentration of defensive compounds was 70-fold greater in the lesion tissue in jack pine, but only 10-fold in lodgepole pine compared to healthy phloem tissue in each species, respectively. Water-deficit treatment inhibited an increase of L-limonene as response to fungal inoculation in lodgepole pine phloem. The amount of myrcene in jack pine phloem was higher in water-deficit trees compared to ambient trees. Beetles reared in jack pine were not affected by either water or biological treatment, whereas beetles reared in lodgepole pine benefited from fungal inoculation by producing larger and heavier female offspring. Female beetles that emerged from jack pine bolts contained more fat than those that emerged from lodgepole pine, even though lodgepole pine phloem had a higher nitrogen content than jack pine phloem. These results suggest that jack pine chemistry

  15. Cross-Reactivity of Polyclonal Antibodies against Canavalia ensiformis (Jack Bean) Urease and Helicobacter pylori Urease Subunit A Fragments.

    Science.gov (United States)

    Kaminski, Zbigniew Jerzy; Relich, Inga; Konieczna, Iwona; Kaca, Wieslaw; Kolesinska, Beata

    2018-01-01

    Overlapping decapeptide fragments of H. pylori urease subunit A (UreA) were synthesized and tested with polyclonal antibodies against Canavalia ensiformis (Jack bean) urease. The linear epitopes of UreA identified using the dot blot method were then examined using epitope mapping. For this purpose, series of overlapping fragments of UreA, frameshifted ± four amino acid residues were synthesized. Most of the UreA epitopes which reacted with the Jack bean urease polyclonal antibodies had been recognized in previous studies by monoclonal antibodies against H. pylori urease. Fragments 11 - 24, 21 - 33, and 31 - 42 were able to interact with the Jack bean urease antibodies, giving stable immunological complexes. However, the lack of recognition by these antibodies of all the components in the peptide map strongly suggests that a non-continuous (nonlinear) epitope is located on the N-terminal domain of UreA. © 2018 Wiley-VHCA AG, Zurich, Switzerland.

  16. Influence of mycorrhizal associations on paper birch and jack pine seedlings when exposed to elevated copper, nickel or aluminium

    Energy Technology Data Exchange (ETDEWEB)

    Jones, M.D.; Browning, M.H.R.; Hutchinson, T.C.

    1986-10-01

    Acid deposition may adversely affect northern forest ecosystems by increasing the concentration of metals in the soil solution. This study investigates the effects of ectomycorrhizal fungi on paper birch and jack pine seedlings exposed to elevated Cu, Ni or Al in sand culture. One of four mycorrhizal fungi, Scleroderma flavidum, was able to reduce Ni toxicity to the birch seedlings. It did this by reducing transport of Ni to the stems. None of the fungi affected Cu toxicity in birch. In separate experiments, jack pine seedlings were exposed to combinations of Al and Ca. Infection with Rhizopogon rubescens increased seedling susceptibility to Al. Seedlings inoculated with Suillus tomentosus showed a greater growth stimulation by Ca than uninoculated jack pines. Thus, for both tree species, the mycorrhizal association could alter the response of seedlings to high concentrations of certain metals, although this varied with fungal species. 8 references.

  17. Manuka honey (Leptospermum scoparium) inhibits jack bean urease activity due to methylglyoxal and dihydroxyacetone.

    Science.gov (United States)

    Rückriemen, Jana; Klemm, Oliver; Henle, Thomas

    2017-09-01

    Manuka honey (Leptospermum scoparium) exerts a strong antibacterial effect. Bacterial enzymes are an important target for antibacterial compounds. The enzyme urease produces ammonia and enables bacteria to adapt to an acidic environment. A new enzymatic assay, based on photometric detection of ammonia with ninhydrin, was developed to study urease activity. Methylglyoxal (MGO) and its precursor dihydroxyacetone (DHA), which are naturally present in manuka honey, were identified as jack bean urease inhibitors with IC 50 values of 2.8 and 5.0mM, respectively. Urease inhibition of manuka honey correlates with its MGO and DHA content. Non-manuka honeys, which lack MGO and DHA, showed significantly less urease inhibition. MGO depletion from manuka honey with glyoxalase reduced urease inhibition. Therefore, urease inhibition by manuka honey is mainly due to MGO and DHA. The results obtained with jack bean urease as a model urease, may contribute to the understanding of bacterial inhibition by manuka honey. Copyright © 2017 Elsevier Ltd. All rights reserved.

  18. Sneaker "jack" males outcompete dominant "hooknose" males under sperm competition in Chinook salmon (Oncorhynchus tshawytscha).

    Science.gov (United States)

    Young, Brent; Conti, David V; Dean, Matthew D

    2013-12-01

    In a variety of taxa, males deploy alternative reproductive tactics to secure fertilizations. In many species, small "sneaker" males attempt to steal fertilizations while avoiding encounters with larger, more aggressive, dominant males. Sneaker males usually face a number of disadvantages, including reduced access to females and the higher likelihood that upon ejaculation, their sperm face competition from other males. Nevertheless, sneaker males represent an evolutionarily stable strategy under a wide range of conditions. Game theory suggests that sneaker males compensate for these disadvantages by investing disproportionately in spermatogenesis, by producing more sperm per unit body mass (the "fair raffle") and/or by producing higher quality sperm (the "loaded raffle"). Here, we test these models by competing sperm from sneaker "jack" males against sperm from dominant "hooknose" males in Chinook salmon. Using two complementary approaches, we reject the fair raffle in favor of the loaded raffle and estimate that jack males were ∼1.35 times as likely as hooknose males to fertilize eggs under controlled competitive conditions. Interestingly, the direction and magnitude of this skew in paternity shifted according to individual female egg donors, suggesting cryptic female choice could moderate the outcomes of sperm competition in this externally fertilizing species.

  19. Jack-of-all-trades effects drive biodiversity–ecosystem multifunctionality relationships in European forests

    Science.gov (United States)

    van der Plas, Fons; Manning, Peter; Allan, Eric; Scherer-Lorenzen, Michael; Verheyen, Kris; Wirth, Christian; Zavala, Miguel A.; Hector, Andy; Ampoorter, Evy; Baeten, Lander; Barbaro, Luc; Bauhus, Jürgen; Benavides, Raquel; Benneter, Adam; Berthold, Felix; Bonal, Damien; Bouriaud, Olivier; Bruelheide, Helge; Bussotti, Filippo; Carnol, Monique; Castagneyrol, Bastien; Charbonnier, Yohan; Coomes, David; Coppi, Andrea; Bastias, Cristina C.; Muhie Dawud, Seid; De Wandeler, Hans; Domisch, Timo; Finér, Leena; Gessler, Arthur; Granier, André; Grossiord, Charlotte; Guyot, Virginie; Hättenschwiler, Stephan; Jactel, Hervé; Jaroszewicz, Bogdan; Joly, François-Xavier; Jucker, Tommaso; Koricheva, Julia; Milligan, Harriet; Müller, Sandra; Muys, Bart; Nguyen, Diem; Pollastrini, Martina; Raulund-Rasmussen, Karsten; Selvi, Federico; Stenlid, Jan; Valladares, Fernando; Vesterdal, Lars; Zielínski, Dawid; Fischer, Markus

    2016-01-01

    There is considerable evidence that biodiversity promotes multiple ecosystem functions (multifunctionality), thus ensuring the delivery of ecosystem services important for human well-being. However, the mechanisms underlying this relationship are poorly understood, especially in natural ecosystems. We develop a novel approach to partition biodiversity effects on multifunctionality into three mechanisms and apply this to European forest data. We show that throughout Europe, tree diversity is positively related with multifunctionality when moderate levels of functioning are required, but negatively when very high function levels are desired. For two well-known mechanisms, ‘complementarity' and ‘selection', we detect only minor effects on multifunctionality. Instead a third, so far overlooked mechanism, the ‘jack-of-all-trades' effect, caused by the averaging of individual species effects on function, drives observed patterns. Simulations demonstrate that jack-of-all-trades effects occur whenever species effects on different functions are not perfectly correlated, meaning they may contribute to diversity–multifunctionality relationships in many of the world's ecosystems. PMID:27010076

  20. POPULASI DAN HABITAT Nepenthes ampullaria Jack. DI CAGAR ALAM MANDOR, KALIMANTAN BARAT

    Directory of Open Access Journals (Sweden)

    Maysarah .

    2017-04-01

    Full Text Available Nepenthes ampullaria Jack. is a species which adapted on the nutrient-poor areas in Mandor nature reserve.  Its could be increasing the quality of Mandor nature reserve as protected area. This research aims to study the population and habitat of N. ampullaria in the Mandor nature reserve. This study was conducted at two habitats, heath forest and peat swamp forest. Observations were made on, population abundance and habitat factors of  N. ampullaria. The results showed that the highest population density of N. ampullaria was in heath forest. Their are growth in groups. Vegetation analysis showed that constituent species habitat of N. ampullaria consist of 69 species from 39 familly. Result of identification to insects showed Formicidae is dominant family that trapped in pitcher of N. ampullaria. Temperature and humidity in N. ampullaria’s habitat has been switable for requirements growth of pitcher plant. Rainfall during the study was normally. Ratio of sand and soil on both affected the improvement of individual N. ampullaria in Mandor nature reserve. Keywords: habitat, Mandor nature reserve, Nepenthes ampullaria Jack, population

  1. The construction of identity in a consumerist society: Delillo’s Jack Gladney

    Directory of Open Access Journals (Sweden)

    Sanja Matković

    2016-02-01

    Full Text Available This paper deals with the construction of the postmodern identity of Jack Gladney, the main character in Don DeLillo’s White Noise (1985. Employing (postmodern, social psychology, and psychoanalytic theories of Zygmunt Bauman, Erich Fromm, Jean Baudrillard, and Gilles Lipovetsky, it analyzes the construction of Gladney’s character through his social roles as professor, husband, and consumer in the narrow sense of the word in order to deduce that his consumerist practices have spread to all aspects of his life. This reading reveals a new interpretation of Gladney’s fear of death; it shows that Gladney’s thanatophobia represents a consequence of his atheistic worldview. Namely, unable to find a haven in religion, he unsuccessfully seeks the meaning of life and death elsewhere, mainly in consumerism, which is identified as the source of his alienation from himself, people, and God. This paper suggests that numerous problems of postmodern life are caused by the lack of faith in God and proposes a conclusion that religion itself could be the answer to the difficulties faced by postmodern individuals with fragmented identities such as Jack Gladney.

  2. Kinetics and mechanism of jack bean urease inhibition by Hg2+

    Directory of Open Access Journals (Sweden)

    Du Nana

    2012-12-01

    Full Text Available Abstract Background Jack bean urease (EC 3.5.1.5 is a metalloenzyme, which catalyzes the hydrolysis of urea to produce ammonia and carbon dioxide. The heavy metal ions are common inhibitors to control the rate of the enzymatic urea hydrolysis, which take the Hg2+ as the representative. Hg2+ affects the enzyme activity causing loss of the biological function of the enzyme, which threatens the survival of many microorganism and plants. However, inhibitory kinetics of urease by the low concentration Hg2+ has not been explored fully. In this study, the inhibitory effect of the low concentration Hg2+ on jack bean urease was investigated in order to elucidate the mechanism of Hg2+ inhibition. Results According to the kinetic parameters for the enzyme obtained from Lineweaver–Burk plot, it is shown that the Km is equal to 4.6±0.3 mM and Vm is equal to 29.8±1.7 μmol NH3/min mg. The results show that the inhibition of jack bean urease by Hg2+ at low concentration is a reversible reaction. Equilibrium constants have been determined for Hg2+ binding with the enzyme or the enzyme-substrate complexes (Ki =0.012 μM. The results show that the Hg2+ is a noncompetitive inhibitor. In addition, the kinetics of enzyme inhibition by the low concentration Hg2+ has been studied using the kinetic method of the substrate reaction. The results suggest that the enzyme first reversibly and quickly binds Hg2+ and then undergoes a slow reversible course to inactivation. Furthermore, the rate constant of the forward reactions (k+0 is much larger than the rate constant of the reverse reactions (k-0. By combining with the fact that the enzyme activity is almost completely lost at high concentration, the enzyme is completely inactivated when the Hg2+ concentration is high enough. Conclusions These results suggest that Hg2+ has great impacts on the urease activity and the established inhibition kinetics model is suitable.

  3. Ecological Responses to Five Years of Experimental Nitrogen Application in an Upland Jack-pine Stand

    Science.gov (United States)

    Melaschenko, N.; Berryman, S.; Straker, J.; Berg, K.; McDonough, A.; Watmough, S. A.

    2016-12-01

    A five-year experimental study was conducted to evaluate the response of an upland jack-pine (Pinus banksiana) forest to elevated levels of nitrogen (N) deposition in Northern Alberta. N deposition in the region is expected to increase with industrial expansion of oil sands activity, and there is regional interest to set N critical loads for sensitive ecosystems. In this study, N was applied as NH4NO3 above a jack-pine canopy via helicopter, annually for five years (2010-2015) at dosages equivalent to 5, 10, 15, 20 and 25 kg N ha-1 yr-1. Approximately 35% of the applied N was retained in the canopy while 65% reached understory vegetation dominated by lichens and mosses. We measured a significant increase in tissue N concentrations of common ground lichens (Cladonia mitis and C. stellaris) and ground moss (Pleurozium schreberi) as well as epiphytic lichens (Hypogymnia physodes and Evernia mesomorpha). On an annual basis, the applied N was primarily captured in the lichen and moss understory, dominated by C. mitis. In the highest treatments, N concentrations in C. mitis were 1.5-2.5 times greater than pre-treatment values. Peak N concentrations in the ground moss Pleurozium schreberi (1.4%) indicate that a threshold of N saturation was reached by year 3. We observed no changes in community composition of vascular and non-vascular plants, or changes in vascular plant tissue N. Chlorophyll levels in C. mitis increased with N treatment, but there was no indication of toxicity or changes to decomposition and growth. After five years of N application, only Peltigera polydactylon, a ground cyanolichen, appeared to be negatively impacted where the thalli showed necrosis at deposition loads >10kg N ha-1 yr-1. No changes to biomass or N ecosystem processes were observed. Based on these observations, we provide evidence that the first adverse ecological effects of N deposition in jack-pine stands occurred at deposition rates of 10 kg N ha-1 yr-1.

  4. Characterizing the physical and genetic structure of the lodgepole pine × jack pine hybrid zone: mosaic structure and differential introgression.

    Science.gov (United States)

    Cullingham, Catherine I; James, Patrick M A; Cooke, Janice E K; Coltman, David W

    2012-12-01

    Understanding the physical and genetic structure of hybrid zones can illuminate factors affecting their formation and stability. In north-central Alberta, lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia) and jack pine (Pinus banksiana Lamb) form a complex and poorly defined hybrid zone. Better knowledge of this zone is relevant, given the recent host expansion of mountain pine beetle into jack pine. We characterized the zone by genotyping 1998 lodgepole, jack pine, and hybrids from British Columbia, Alberta, Saskatchewan, Ontario, and Minnesota at 11 microsatellites. Using Bayesian algorithms, we calculated genetic ancestry and used this to model the relationship between species occurrence and environment. In addition, we analyzed the ancestry of hybrids to calculate the genetic contribution of lodgepole and jack pine. Finally, we measured the amount of gene flow between the pure species. We found the distribution of the pine classes is explained by environmental variables, and these distributions differ from classic distribution maps. Hybrid ancestry was biased toward lodgepole pine; however, gene flow between the two species was equal. The results of this study suggest that the hybrid zone is complex and influenced by environmental constraints. As a result of this analysis, range limits should be redefined.

  5. Healing of the Acutely Injured Anterior Cruciate Ligament: Functional Treatment with the ACL-Jack, a Dynamic Posterior Drawer Brace

    Directory of Open Access Journals (Sweden)

    Matthias Jacobi

    2016-01-01

    Full Text Available Background. The injured anterior cruciate ligament (ACL has a limited healing capacity leading to persisting instability. Hypothesis/Purpose. To study if the application of a brace, producing a dynamic posterior drawer force, after acute ACL injury reduces initial instability. Study Design. Cohort study. Methods. Patients treated with the ACL-Jack brace were compared to controls treated with primary ACL reconstruction und controls treated nonsurgically with functional rehabilitation. Measurements included anterior laxity (Rolimeter, clinical scores (Lysholm, Tegner, and IKDC, and MRI evaluation. Patients were followed up to 24 months. Results. Patients treated with the ACL-Jack brace showed a significant improvement of anterior knee laxity comparable to patients treated with ACL reconstruction, whereas laxity persisted after nonsurgical functional rehabilitation. The failure risk (secondary reconstruction necessary of the ACL-Jack group was however 21% (18 of 86 within 24 months. Clinical scores were similar in all treatment groups. Conclusion. Treatment of acute ACL tears with the ACL-Jack brace leads to improved anterior knee laxity compared to nonsurgical treatment with functional rehabilitation.

  6. Effect of average growing season temperature on seedling germination, survival and growth in jack pine (Pinus banksiana Lamb.)

    Science.gov (United States)

    A. David; E. Humenberger

    2017-01-01

    Because jack pine (Pinus banksiana Lamb.) is serotinous, it retains multiple years of cones until environmental conditions are favorable for releasing seed. These cones, which contain seed cohorts that developed under a variety of growing seasons, can be accurately aged using bud scale scars on twigs and branches. By calculating the average daily...

  7. BIBLIOGRAPHY ON INDIVIDUALIZED INSTRUCTION.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Graduate School of Education.

    THIS BIBLIOGRAPHY LISTS MATERIAL ON VARIOUS ASPECTS OF INDIVIDUALIZED INSTRUCTION. APPROXIMATELY 85 UNANNOTATED REFERENCES ARE PROVIDED TO DOCUMENTS DATING FROM 1958 TO 1966. JOURNALS, BOOKS, AND REPORT MATERIALS ARE LISTED. SUBJECT AREAS INCLUDED ARE PROGRAMED INSTRUCTION, TEACHING MACHINES, RESPONSE MODE, SELF-INSTRUCTION, AND COMPUTER-ASSISTED…

  8. The Instructional Capacitor

    Science.gov (United States)

    Walton, Elizabeth

    2012-01-01

    Many administrators are so overwhelmed by the basic responsibilities of their daily work that there seems to be little or no time left for providing quality leadership in instruction. Instead, schools employ department chairs, instructional specialists, and coordinators to provide instructional leadership. How can administrators find time in the…

  9. Raccoglier lettere. Le “Vico collaborations” di Jack W. Stauffacher e Dennis Letbetter

    Directory of Open Access Journals (Sweden)

    Armando, David

    2010-01-01

    Full Text Available Starting in the early ’70s the San Francisco printer and typographer Jack W. Stauffacher undertook a graphic exploration of Vico’s works, which continued during the past decade together with the photographer Dennis Letbetter. The aim of this article is to present their experience - which is at the same time poetic and historically attentive, focusing on the relationships between text and images, and on the typographical and physical qualities of 18th century editions - to an audience which includes Italian Vico scholars. The text is composed of a brief introduction and an interview with the two artists, and is followed (pp. 94-180 by a photographic presentation of their "Vico collaborations".

  10. Solving 1D plasmas and 2D boundary problems using Jack polynomials and functional relations

    International Nuclear Information System (INIS)

    Fendley, P.; Saleur, H.; Lesage, F.

    1995-01-01

    The general one-dimensional open-quotes log-sineclose quotes gas is defined by restricting the positive and negative charges of a two-dimensional Coulomb gas to live on a circle. Depending on charge constraints, this problem is equivalent to different boundary field theories. We study the electrically neutral case, which is equivalent to a two-dimensional free boson with an impurity cosine potential. We use two different methods: a perturbative one based on Jack symmetric functions, and a non-perturbative one based on the thermodynamic Bethe ansatz and functional relations. The first method allows us to find an explicit series expression for all coefficients in the virial expansion of the free energy and the experimentally measurable conductance. Some results for correlation functions are also presented. The second method gives an expression for the full free energy, which yields a surprising fluctuation-dissipation relation between the conductance and the free energy

  11. Modular jack-up platform debuts in Peru's Amazon jungle

    Energy Technology Data Exchange (ETDEWEB)

    Franco, A.

    1975-08-11

    Robishaw Engineering Inc., Houston, has designed and built a jack-up platform based on a modular flotation and erection system that allows exploratory and development drilling year round in any location that cannot be reached by conventional equipment. All components are light enough to be transported by helicopters rated for 4000-lb loads, yet strong and buoyant enough to serve as working platforms. The pile-supported self-elevating drilling platform consists of H-shaped steel girders joined by pin connectors and tension wires. Deck panels are steel-plated. When elevated on steel pilings, the platform can support loads imposed by rigs capable of drilling to 18,000 ft. One such unit is currently being used in the Peruvian rain forest.

  12. Ficus deltoidea Jack: A Review on Its Phytochemical and Pharmacological Importance

    Directory of Open Access Journals (Sweden)

    Hamidun Bunawan

    2014-01-01

    Full Text Available Ficus deltoidea Jack (Moraceae has had a long history of use in traditional medicine among the Malays to alleviate and heal ailments such as sores, wounds, and rheumatism and as an after-birth tonic and an antidiabetic drug. Modern pharmacological studies demonstrated that this plant has a wide variety of beneficial attributes for human health. Despite its importance, a review of this species has not been published in the scientific literature to date. Here, we review and summarize the historic and current literature concerning the botany, traditional uses, phytochemistry, pharmacological effects, and toxicity of this wonder plant. This summary could be beneficial for future research aiming to exploit the therapeutic potential of this useful, medicinal species.

  13. Multi-gene phylogeny of jacks and pompanos (Carangidae), including placement of monotypic vadigo Campogramma glaycos.

    Science.gov (United States)

    Damerau, M; Freese, M; Hanel, R

    2018-01-01

    In this study, the phylogenetic trees of jacks and pompanos (Carangidae), an ecologically and morphologically diverse, globally distributed fish family, are inferred from a complete, concatenated data set of two mitochondrial (cytochrome c oxidase I, cytochrome b) loci and one nuclear (myosin heavy chain 6) locus. Maximum likelihood and Bayesian inferences are largely congruent and show a clear separation of Carangidae into the four subfamilies: Scomberoidinae, Trachinotinae, Naucratinae and Caranginae. The inclusion of the carangid sister lineages Coryphaenidae (dolphinfishes) and Rachycentridae (cobia), however, render Carangidae paraphyletic. The phylogenetic trees also show with high statistical support that the monotypic vadigo Campogramma glaycos is the sister to all other species within the Naucratinae. © 2017 The Fisheries Society of the British Isles.

  14. Antioxidant and free radical scavenging activities of Gastrodia elata Bl. and Uncaria rhynchophylla (Miq.) Jacks.

    Science.gov (United States)

    Liu, J; Mori, A

    1992-12-01

    Gastrodia elata Bl. (GE) and Uncaria rhynchophylla (Miq.) Jacks (UR) are two traditional Chinese medicinal herbal drugs, used for the treatment of convulsions and epilepsy. Their antioxidant effects in vivo and their free radical scavenging effects in vitro were investigated. Epileptogenic foci in the lateral brain of the rat were induced by the injection of ferric chloride into the lateral cortex. Both extracts significantly inhibited the increase in levels of lipid peroxide in the ipsilateral cortex, at all times observed. In addition, the two extracts also induced an early increase of activity of superoxide dismutase in the mitochondrial fraction of the ipsilateral cortex. In in vitro experiments, the two extracts exhibited significant dose-dependent scavenging effects on free radicals, using electron spin resonance spectroscopy. These results suggest that the proposed antiepileptic effects of GE and UR may be attributable to the antioxidant activity of the active components in these two medicinal herbs.

  15. Evapotranspiration and crop coefficients of corn in monoculture and intercropped with jack bean

    Directory of Open Access Journals (Sweden)

    Mário S. P. de Araújo

    Full Text Available ABSTRACT This study was carried out to determine the evapotranspiration (ETc and crop coefficients (Kc for four stages of “Caatingueiro” corn under the climate condition of Seropédica, RJ, Brazil, using weighing lysimeters. The field trial occurred in 2015, from March 18 to June 25, in two areas cultivated with “Caatingueiro’ corn intercropped with jack bean and in monoculture. The reference evapotranspiration (ETo was estimated by the FAO-56 Penman-Monteith model and the Kc values were determined by the ratio between ETc and ETo. The Kc values obtained for the intercropping and monoculture systems, were respectively: 0.78 (I; 1.01 (II; 1.10 (III and 1.01 (IV, and 0.62 (I; 0.92 (II; 1.27 (III and 0.81 (IV, and they were different from the values presented by FAO.

  16. Tongkat Ali (Eurycoma longifolia Jack): a review on its ethnobotany and pharmacological importance.

    Science.gov (United States)

    Bhat, Rajeev; Karim, A A

    2010-10-01

    Eurycoma longifolia Jack is an herbal medicinal plant of South-East Asian origin, popularly recognized as 'Tongkat Ali.' The plant parts have been traditionally used for its antimalarial, aphrodisiac, anti-diabetic, antimicrobial and anti-pyretic activities, which have also been proved scientifically. The plant parts are rich in various bioactive compounds (like eurycomaoside, eurycolactone, eurycomalactone, eurycomanone, and pasakbumin-B) among which the alkaloids and quassinoids form a major portion. Even though toxicity and safety evaluation studies have been pursued, still a major gap exists in providing scientific base for commercial utilization and clearance of the Tongkat Ali products with regard to consumer's safety. The present review aims at reviewing the research works undertaken till date, on this plant in order to provide sufficient baseline information for future works and for commercial exploitation. Copyright © 2010 Elsevier B.V. All rights reserved.

  17. [Malignant narcissism and sexual homicide--exemplified by the Jack Unterweger case].

    Science.gov (United States)

    Haller, R

    1999-01-01

    With the syndrome of malignant narcissism, which is characterised by narcissistic personality disorder, anti-social behaviour, sadism and a marked tendency to paranoid reactions, Kernberg (1985, 1996) describes an independent form of pathological narcissism. According to Stone (1996) this is found in many mass-murderers and serial killers. On the basis of the example of Jack Unterweger the connection between malignant narcissism and sexual offence is discussed as to psychodynamic development, personality structure and psychopathology. Unterweger, who was convicted to lifelong imprisonment in 1976 for sadistic sexual murder, became a wellknown writer in prison and was released prematurely in 1990 as the Austria case of successful rehabilitation. As stated in the sentence passed against him he killed 11 prostitutes in Europe and the USA within the next 18 months, but never pleaded guilty. Psychiatric examination revealed numerous elements of malignant narcissism and the constellation of his development and life was typical of serial offenders.

  18. Prevalence, severity, and natural history of jack jumper ant venom allergy in Tasmania.

    Science.gov (United States)

    Brown, Simon G A; Franks, Rodney W; Baldo, Brian A; Heddle, Robert J

    2003-01-01

    The jack jumper ant (Myrmecia pilosula) is responsible for greater than 90% of Australian ant venom allergy. However, deaths have only been recorded in the island of Tasmania. We sought to determine the prevalence, clinical features, natural history, and predictors of severity of M pilosula sting allergy in Tasmania. We performed a random telephone survey supported by serum venom-specific IgE analysis, review of emergency department presentations, and follow-up of allergic volunteers. M pilosula, honeybee (Apis mellifera), and yellow jacket wasp (Vespula germanica) sting allergy prevalences were 2.7%, 1.4%, and 0.6% compared with annual sting exposure rates of 12%, 7%, and 2%, respectively. Similarly, emergency department presentations with anaphylaxis to M pilosula were double those for honeybee. M pilosula allergy prevalence increased with age of 35 years or greater (odds ratio [OR], 2.4) and bee sting allergy (OR, 16.9). Patients 35 years of age or older had a greater risk of hypotensive reactions (OR, 2.9). Mueller reaction grades correlated well with adrenaline use. During follow-up, 79 (70%) of 113 jack jumper stings caused anaphylaxis. Prior worst reaction severity predicted the likelihood and severity of follow-up reactions; only 3 subjects had more severe reactions. Venom-specific IgE levels and other clinical features, including comorbidities, were not predictive of severity. Sting allergy prevalence is determined by age and exposure rate. M pilosula sting exposure in Tasmania is excessive compared with that found in mainland Australia, and there is a high systemic reaction risk in allergic people on re-sting. Prior worst reaction severity (Mueller grade) and age predict reaction severity and might be used to guide management.

  19. Kinetics and Mechanism Study of Competitive Inhibition of Jack-Bean Urease by Baicalin

    Science.gov (United States)

    Tan, Lirong; Su, Jiyan; Wu, Dianwei; Yu, Xiaodan; Su, Zuqing; Wu, Xiaoli; Kong, Songzhi; Lai, Xiaoping; Lin, Ji; Su, Ziren

    2013-01-01

    Baicalin (BA) is the principal component of Radix Scutellariae responsible for its pharmacological activity. In this study, kinetics and mechanism of inhibition by BA against jack-bean urease were investigated for its therapeutic potential. It was revealed that the IC50 of BA against jack-bean urease was 2.74 ± 0.51 mM, which was proved to be a competitive and concentration-dependent inhibition with slow-binding progress curves. The rapid formation of initial BA-urease complex with an inhibition constant of K i = 3.89 × 10−3 mM was followed by a slow isomerization into the final complex with an overall inhibition constant of K i* = 1.47 × 10−4 mM. High effectiveness of thiol protectors against BA inhibition indicated that the strategic role of the active-site sulfhydryl group of the urease was involved in the blocking process. Moreover, the inhibition of BA was proved to be reversible due to the fact that urease could be reactivated by dithiothreitol but not reactant dilution. Molecular docking assay suggested that BA made contacts with the important activating sulfhydryl group Cys-592 residues and restricted the mobility of the active-site flap. Taken together, it could be deduced that BA was a competitive inhibitor targeting thiol groups of urease in a slow-binding manner both reversibly and concentration-dependently, serving as a promising urease inhibitor for treatments on urease-related diseases. PMID:24198731

  20. Jack-knife stretching promotes flexibility of tight hamstrings after 4 weeks: a pilot study.

    Science.gov (United States)

    Sairyo, Koichi; Kawamura, Takeshi; Mase, Yasuyoshi; Hada, Yasushi; Sakai, Toshinori; Hasebe, Kiyotaka; Dezawa, Akira

    2013-08-01

    Tight hamstrings are reported to be one of the causes of low back pain. However, there have been few reports on effective stretching procedures for the tight hamstrings. The so-called jack-knife stretch, an active-static type of stretching, can efficiently increase the flexibility of tight hamstrings. To evaluate hamstring tightness before and after the 4-week stretching protocol in healthy volunteer adults and patients aged under 18 years with low back pain. For understanding the hamstrings tightness, we measured two parameters including (1) finger to floor distance (FFD) and (2) pelvis forward inclination angle (PFIA). Eight healthy adult volunteers who had no lumbar or hip problems participated in this study (mean age: 26.8 years). All lacked flexibility and their FFD were positive before the experiment. Subjects performed 2 sets of the jack-knife stretch every day for 4 weeks. One set consisted of 5 repetitions, each held for 5 s. Before and during the 4-week experiment, the FFD and PFIA of toe-touching tests were measured weekly. For 17 of the sports players aged under 18, only FFD was measured. In adult volunteers, FFD was 14.1 ± 6.1 cm before the experiment and decreased to -8.1 ± 3.7 cm by the end of week 4, indicating a gain in flexibility of 22.2 cm. PFIA was 50.6 ± 8.2 before the experiment and 83.8 ± 5.8 degrees after. Before and after the experiment, the differences were significant (p hamstrings.

  1. The Jack mackerel Trachurus murphyiand the environmental macro-scale variables

    Directory of Open Access Journals (Sweden)

    Marco Espino

    2013-10-01

    Full Text Available This paper analyses information on various macro environmental variables available since 1876 for the Southeast Pacific and more recent data on Jack mackerel Trachurus murphyi (Nichols, 1920 landings and biomass in the Peruvian sea, relating them to probable areas of water masses equivalent to Cold Coastal Waters (CCW and Subtropical Surface Waters (SSW. It is concluded that the index of the Pacific Decadal Oscillation (PDO presents expressions of variability that are consistent with those found for the Southern Oscillation Index (SOI and that the detected changes in biomass of Jack mackerel T. murphyiin the Peruvian sea reflect changes in the availability of the fish stock associated with secular (SOI and decadal (PDO variability patterns. These fluctuations in stock availability impact fisheries in Ecuador, Peru and northern Chile, which show significant variations in their landings and would have given a biased picture of the state of abundance, leading to wrong diagnoses of the real situation of the exploited stocks. These patterns of variability would also affect the appearance of El Niño, making them start in the southern hemisphere autumn or spring depending on whether the current PDO is positive or negative. Periods of high (1876 – 1925 and 1976 – 2012 and low (1926 – 1975 variability are also identified in relation to the Euclidean distance of the variances of the SOI; and in relation to the PDO a distinction is made between warm (1925 – 1944 and 1975 – 1994, cold (1945 – 1974 and tempered or interface periods (1895 – 1924 and 1995 – 2012, the latter being explained by the interaction between periods of high variability.

  2. Survey of foliar monoterpenes across the range of jack pine reveal three widespread chemotypes: implications to host expansion of invasive mountain pine beetle

    Directory of Open Access Journals (Sweden)

    Spencer eTaft

    2015-05-01

    Full Text Available The secondary compounds of pines (Pinus can strongly affect the physiology, ecology and behaviors of the bark beetles (Coleoptera: Curculionidae, Scolytinae that feed on sub-cortical tissues of hosts. Jack pine (Pinus banksiana has a wide natural distribution range in North America (Canada and USA and thus variations in its secondary compounds, particularly monoterpenes, could affect the host expansion of invasive mountain pine beetle (Dendroctonus ponderosae, which has recently expanded its range into the novel jack pine boreal forest. We investigated monoterpene composition of 601 jack pine trees from natural and provenance forest stands representing 63 populations from Alberta to the Atlantic coast. Throughout its range, jack pine exhibited three chemotypes characterized by high proportions of α-pinene, β-pinene, or limonene. The frequency with which the α-pinene and β-pinene chemotypes occurred at individual sites was correlated to climatic variables, such as continentality and mean annual precipitation, as were the individual α-pinene and β-pinene concentrations. However, other monoterpenes were generally not correlated to climatic variables or geographic distribution. Finally, while the enantiomeric ratios of β-pinene and limonene remained constant across jack pine’s distribution, (‒:(+-α-pinene exhibited two separate trends, thereby delineating two α-pinene phenotypes, both of which occurred across jack pine’s range. These significant variations in jack pine monoterpene composition may have cascading effects on the continued eastward spread and success of D. ponderosae in the Canadian boreal forest.

  3. Effective instruction for English learners.

    Science.gov (United States)

    Calderón, Margarita; Slavin, Robert; Sánchez, Marta

    2011-01-01

    The fastest-growing student population in U.S. schools today is children of immigrants, half of whom do not speak English fluently and are thus labeled English learners. Although the federal government requires school districts to provide services to English learners, it offers states no policies to follow in identifying, assessing, placing, or instructing them. Margarita Calderón, Robert Slavin, and Marta Sánchez identify the elements of effective instruction and review a variety of successful program models. During 2007-08, more than 5.3 million English learners made up 10.6 percent of the nation's K-12 public school enrollment. Wide and persistent achievement disparities between these English learners and English-proficient students show clearly, say the authors, that schools must address the language, literacy, and academic needs of English learners more effectively. Researchers have fiercely debated the merits of bilingual and English-only reading instruction. In elementary schools, English learners commonly receive thirty minutes of English as a Second Language (ESL) instruction but attend general education classes for the rest of the day, usually with teachers who are unprepared to teach them. Though English learners have strikingly diverse levels of skills, in high school they are typically lumped together, with one teacher to address their widely varying needs. These in-school factors contribute to the achievement disparities. Based on the studies presented here, Calderón, Slavin, and Sánchez assert that the quality of instruction is what matters most in educating English learners. They highlight comprehensive reform models, as well as individual components of these models: school structures and leadership; language and literacy instruction; integration of language, literacy, and content instruction in secondary schools; cooperative learning; professional development; parent and family support teams; tutoring; and monitoring implementation and outcomes

  4. Instructions to Authors – Guidelines for Publication

    Directory of Open Access Journals (Sweden)

    Sustainability in Debate

    2012-07-01

    Full Text Available The journal Sustainability in Debate (SeD, interdisciplinary in its scope, publishes original textsabout the several dimensions of sustainability. It goal is to create a direct channel for debates about sustainable development, environmental management, socioenvironmental conflicts, the state of the environment, environmental governance, among other matters.

  5. Instructions To Authors – Guidelines For Publication

    Directory of Open Access Journals (Sweden)

    Sustentabilidade em Debate

    2013-01-01

    Full Text Available The journal Sustainability in Debate (SeD, interdisciplinary in its scope, publishes original texts about the several dimensions of sustainability. It goal is to create a direct channel for debates about sustainable development, environmental management, socioenvironmental conflicts, the state of the environment, environmental governance, among other matters. We request that authors submit their manuscripts according to the information and requirements present in this document.

  6. Instructions To Authors – Guidelines For Publication

    Directory of Open Access Journals (Sweden)

    Sustentabilidade em Debate

    2013-07-01

    Full Text Available The journal Sustainability in Debate (SeD, interdisciplinary in its scope, publishes original texts about the several dimensions of sustainability. It goal is to create a direct channel for debates about sustainable development, environmental management, socioenvironmental conflicts, the state of the environment, environmental governance, among other matters. We request that authors submit their manuscripts according to the information and requirements present in this document.

  7. Solar drying of jack fruit almonds Secagem solar de amêndoas de jaca

    Directory of Open Access Journals (Sweden)

    Alexandre J. de M Queiroz

    2011-12-01

    Full Text Available Dryers heated by solar energy have been constructed and used in drying whole and half jack fruit almonds. The samples were dried during the day in direct sun and in the conventional solar dryer prepared for this purpose. Another piece of equipment was built for reception and accumulation of sun energy in a body of water, which was used as a heat source for night drying. The drying with the sun energy was compared with artificial drying. The jack fruit almonds were dried whole, half, with pellicle and without it. The storage of solar energy in water was technically viable for use in night drying. The drying by combining solar dryers in the day and night periods were completed in approximately 35 hours, and were equivalent to artificial drying between 40ºC and 70ºC. Almond cut in half and the pellicle removed reduced the drying time.Secadores com aquecimento por energia solar foram construídos e utilizados em secagens de amêndoas de jaca inteiras e em metades. As secagens no período diurno foram realizadas por exposição direta ao sol e em secador solar convencional, elaborado para este fim. Construiu-se também um equipamento para captação e acumulação de energia solar em uma massa de água, a qual foi utilizada como fonte de calor para realização de secagens no período noturno. As secagens com o uso de energia solar foram comparadas com secagens artificiais. As amêndoas de jaca foram secadas inteiras, em metades, com e sem película. O armazenamento da energia solar em corpo de água mostrou-se viável do ponto de vista técnico para utilização em secagens noturnas. As secagens combinando secadores por energia solar nos períodos diurno e noturno foram concluídas em tempos aproximados de 35 horas e equivaleram a secagens artificiais entre 40 ºC e 70 ºC. O corte das amêndoas e a retirada das películas reduziram o tempo de secagem.

  8. A Change in Igneous Activity of the Jack Hills Zircon Sources ca. 3.9 Ga

    Science.gov (United States)

    Bell, E. A.; Harrison, T. M.

    2010-12-01

    New Ti-in-zircon crystallization temperature (Txlln) data for Jack Hills zircons reveal that the tight clustering of Hadean grains around a Txlln of 680°C, possibly indicative of felsic-to-intermediate minimum melting conditions, continues to ~3.92 Ga. Between 3.92-3.82 Ga the 680°C clustering ceases and most concordant grains cluster around an apparent Txlln of 610°C. A small group of zircons with higher Txlln (~750°C), present during the Hadean, is also observed during this period. After 3.82 Ga a Hadean-like distribution resumes for ~100 Ma. This large, concordant, low-Ti group at ~3.9 Ga is statistically distinct from the Hadean distribution and appears to be unique in the Jack Hills zircon record. The existence of coeval high- and low-Ti groups suggests that two distinct zircon-forming processes are distinguishable ~3.9 Ga, unlike during the Hadean. The significant numbers of zircons with apparent Txlln below 600°C may be suggestive of subsolidus formation, since igneous units with solidii below 600°C are relatively rare. The higher-Ti group is more consistent with an intermediate to mafic igneous origin but metamorphic overprinting or subsolidus formation at granulite grade cannot be ruled out by Txlln alone. A substantial proportion of the high-Ti group display oscillatory and disrupted oscillatory zoning in cathodoluminescence images, usually indicative of igneous origins and later metamorphism, respectively; most low-Ti grains are homogeneous. Several of each group display patchy zonation indicative of metamorphic overprinting. Although several grains with apparent Txlln >600°C display oscillatory zonation, the majority of the low-Ti group do not show textural evidence for igneous origins. We interpret these results to indicate the transition from a mechanism(s) that produced dominantly 680°C apparent zircon temperatures at ca. 3.9 Ga to include a new zircon-forming process in the sediment source(s), likely a protracted period of metamorphism

  9. Long multiplication by instruction sequences with backward jump instructions

    NARCIS (Netherlands)

    Bergstra, J.A.; Middelburg, C.A.

    2013-01-01

    For each function on bit strings, its restriction to bit strings of any given length can be computed by a finite instruction sequence that contains only instructions to set and get the content of Boolean registers, forward jump instructions, and a termination instruction. Backward jump instructions

  10. Jack'd, a Mobile Social Networking Application: A Site of Exclusion Within a Site of Inclusion.

    Science.gov (United States)

    Bartone, Michael D

    2018-01-01

    User-generated smartphone applications have created a new level of virtual connectivity for gay males, one in which users can create profiles and meet other users as nearby or as far away as possible. For those within close proximity, the other users can be considered their "virtual neighbors." Although the applications are theoretically designed to be places of inclusion and not exclusion, where any gay male with economic means can download an application, many profiles have been created that exclude other users. Through an examination of profiles on one such application, Jack'd, exclusion is found in the way users celebrate and reinforce ideas of traditional masculinity and denigrate and reinforce stereotypic ideas of femininity embodied by some gay men. Jack'd, and other user-generated smartphone applications, can be read as virtual neighborhoods where one is excluded based on their gender performance.

  11. ABCC publication manual

    Energy Technology Data Exchange (ETDEWEB)

    1959-01-01

    The reporting policy of the Atomic Bomb Casualty Commission is described in detail in this manual. Specific topics covered are: research project register; research publication policy; USA publication procedures; Japan publication procedures, report preparation instructions; and a glossary of institutions terms, phrases, and symbols. 15 figures. (DMC)

  12. Effect of Pasak Bumi (Eurycoma longifolia Jack) Root In Precopulation Stage to the Fertility of Female Mouse (Mus musculus L.)

    OpenAIRE

    Marlinza, Rosa

    2012-01-01

    Pasak Bumi (Eurycoma longifolia Jack) have potency to be used to increase bodyendurance, to cure malaria drug, and to act as afrodisiak. However, the effect of pasak bumi onwomen fertility, especially at pre-copulation stage was not widely known. This research seeks toreveal the effect pasak bumi extract treated at pre-copulation phase on fertility. This experimentemploy mice (Mus Musculus L.) and was undertaken at Biology and Cemistry laboratories PMIPA, andVeterinary laboratory of Jambi Uni...

  13. Comparison of lodgepole and jack pine resin chemistry: implications for range expansion by the mountain pine beetle, Dendroctonus ponderosae (Coleoptera: Curculionidae

    Directory of Open Access Journals (Sweden)

    Erin L. Clark

    2014-02-01

    Full Text Available The mountain pine beetle, Dendroctonus ponderosae, is a significant pest of lodgepole pine in British Columbia (BC, where it has recently reached an unprecedented outbreak level. Although it is native to western North America, the beetle can now be viewed as a native invasive because for the first time in recorded history it has begun to reproduce in native jack pine stands within the North American boreal forest. The ability of jack pine trees to defend themselves against mass attack and their suitability for brood success will play a major role in the success of this insect in a putatively new geographic range and host. Lodgepole and jack pine were sampled along a transect extending from the beetle’s historic range (central BC to the newly invaded area east of the Rocky Mountains in north-central Alberta (AB in Canada for constitutive phloem resin terpene levels. In addition, two populations of lodgepole pine (BC and one population of jack pine (AB were sampled for levels of induced phloem terpenes. Phloem resin terpenes were identified and quantified using gas chromatography. Significant differences were found in constitutive levels of terpenes between the two species of pine. Constitutive α-pinene levels – a precursor in the biosynthesis of components of the aggregation and antiaggregation pheromones of mountain pine beetle – were significantly higher in jack pine. However, lower constitutive levels of compounds known to be toxic to bark beetles, e.g., 3-carene, in jack pine suggests that this species could be poorly defended. Differences in wounding-induced responses for phloem accumulation of five major terpenes were found between the two populations of lodgepole pine and between lodgepole and jack pine. The mountain pine beetle will face a different constitutive and induced phloem resin terpene environment when locating and colonizing jack pine in its new geographic range, and this may play a significant role in the ability of the

  14. Comparison of lodgepole and jack pine resin chemistry: implications for range expansion by the mountain pine beetle, Dendroctonus ponderosae (Coleoptera: Curculionidae).

    Science.gov (United States)

    Clark, Erin L; Pitt, Caitlin; Carroll, Allan L; Lindgren, B Staffan; Huber, Dezene P W

    2014-01-01

    The mountain pine beetle, Dendroctonus ponderosae, is a significant pest of lodgepole pine in British Columbia (BC), where it has recently reached an unprecedented outbreak level. Although it is native to western North America, the beetle can now be viewed as a native invasive because for the first time in recorded history it has begun to reproduce in native jack pine stands within the North American boreal forest. The ability of jack pine trees to defend themselves against mass attack and their suitability for brood success will play a major role in the success of this insect in a putatively new geographic range and host. Lodgepole and jack pine were sampled along a transect extending from the beetle's historic range (central BC) to the newly invaded area east of the Rocky Mountains in north-central Alberta (AB) in Canada for constitutive phloem resin terpene levels. In addition, two populations of lodgepole pine (BC) and one population of jack pine (AB) were sampled for levels of induced phloem terpenes. Phloem resin terpenes were identified and quantified using gas chromatography. Significant differences were found in constitutive levels of terpenes between the two species of pine. Constitutive α-pinene levels - a precursor in the biosynthesis of components of the aggregation and antiaggregation pheromones of mountain pine beetle - were significantly higher in jack pine. However, lower constitutive levels of compounds known to be toxic to bark beetles, e.g., 3-carene, in jack pine suggests that this species could be poorly defended. Differences in wounding-induced responses for phloem accumulation of five major terpenes were found between the two populations of lodgepole pine and between lodgepole and jack pine. The mountain pine beetle will face a different constitutive and induced phloem resin terpene environment when locating and colonizing jack pine in its new geographic range, and this may play a significant role in the ability of the insect to persist in

  15. Analysis of Floating Buoy of a Wave Power Generating Jack-Up Platform Haiyuan 1

    Directory of Open Access Journals (Sweden)

    Date Li

    2013-01-01

    Full Text Available The paper focuses on the performance of floating buoys of a wave power generating jack-up platform called Haiyuan 1, in order to work out the optimum designed draft and hydraulic pressure. The performance of the buoy, especially its delivered power, is an important issue in designing oscillating buoy wave energy converter. In this case, major factors affect the performance including incident wave, designed draft, and hydraulic pressure on the buoy. To find out the relationship among design draft, hydraulic pressure, and delivered power, the key point is to precisely estimate wave induced motion of the buoy. Three-dimensional theory and time domain method based on potential theory were adopted in the paper. Unlike ship and other floating structures, motion of wave energy converter (WEC buoy in wave will be weakened because of energy take-off, which will cause significant draft changing with time. Thus, draft changing should be taken into consideration as well. In addition, green water problem occurs more frequently than that in ship and other floating structures and also might the reduce delivered power. Therefore, green water problem will also be taken into account when choosing the optimum designed draft and hydraulic pressure. The calculation indicates that the optimum designed draft is 0.935 m, while the optimum designed hydraulic pressure is 30 kN.

  16. Non-reef environments impact the diversification of extant jacks, remoras and allies (Carangoidei, Percomorpha).

    Science.gov (United States)

    Frédérich, Bruno; Marramà, Giuseppe; Carnevale, Giorgio; Santini, Francesco

    2016-11-16

    Various factors may impact the processes of diversification of a clade. In the marine realm, it has been shown that coral reef environments have promoted diversification in various fish groups. With the exception of requiem sharks, all the groups showing a higher level of diversity in reefs than in non-reef habitats have diets based predominantly on plankton, algae or benthic invertebrates. Here we explore the pattern of diversification of carangoid fishes, a clade that includes numerous piscivorous species (e.g. trevallies, jacks and dolphinfishes), using time-calibrated phylogenies as well as ecological and morphological data from both extant and fossil species. The study of carangoid morphospace suggests that reef environments played a role in their early radiation during the Eocene. However, contrary to the hypothesis of a reef-association-promoting effect, we show that habitat shifts to non-reef environments have increased the rates of morphological diversification (i.e. size and body shape) in extant carangoids. Piscivory did not have a major impact on the tempo of diversification of this group. Through the ecological radiation of carangoid fishes, we demonstrate that non-reef environments may sustain and promote processes of diversification of different marine fish groups, at least those including a large proportion of piscivorous species. © 2016 The Author(s).

  17. Safe jack-up method permits repairs of tank bottoms and foundations

    International Nuclear Information System (INIS)

    de Wit, J.

    1991-01-01

    The oil and chemical industries use many thousands of steel tanks to store crude oil, oil products, and chemical liquids. The majority of these tanks are 30-40 years old. Tank bottoms are likely to begin leaking in the coming years, as these tanks get older. The European technique of jacking up a tank and repairing its foundation allows the thorough inspection of the underside of the tank bottom and the removal of saturated foundation material. And the possibility of soil and groundwater pollution is reduced to a minimum. With good, regular maintenance, the lifetime of a storage tank is very long. But experience has shown that special attention should be paid to the tank's bottom. Tank bottoms are only 5 or 6 mm thick, and in the last 10 years, an increasing number of leaks in tank bottoms have been reported. Tank foundations are affected by these leaks. This article describes the resulting procedure, which is used successfully in many European countries, but is not yet common in the U.S

  18. Anti-diabetic Activity of Tabat Barito Leafs (Ficus deltoidea, Jack Extract in Rats

    Directory of Open Access Journals (Sweden)

    Heru Agus Cahyanto

    2013-06-01

    Full Text Available Tabat barito (Ficus deltoidea, Jack leaf is believed could be used to treat diabetes. But more scientific data are needed. The aim of this study is to investigate  antidiabetic activity of  Tabat Barito extract by glucose tolerance method. The treatment was given in three doses (50, 100, and 200 mg/kg BW and two controls using aquoeus and glibenklamid.  Tabat barito extract was obtained by maceration and made into dry extract with addition of starch. The result showed that chemical compound of the ethanol extract were fenolic and saponin. The extract showed effects in lowering blood sugar levels with glucose tolerance methods at 30 to 60 minutes. Blood glucose levels of mice treated with the extract extract ranged between 132.60 to 258.00 mg/dL , glibenklamide ranged from 130.20 to 144.60 mg/dL, and aqua ranged between 227.60 to 260.20 mg/dL. The percentage decrease in blood sugar levels compared to controls is 32.54%.

  19. Development of observational learning during school formation in jack mackerel Trachurus japonicus juveniles.

    Science.gov (United States)

    Takahashi, Kohji; Masuda, Reiji; Yamashita, Yoh

    2014-03-01

    We assessed whether the development of observational learning in jack mackerel Trachurus japonicus juveniles corresponds with that of their schooling behaviour. Schooling behaviour was quantitatively analyzed by nearest neighbour distance and separation angle in two size classes of fish, 20-mm and 40-mm in body length. Observer and non-observer fish with matching sizes were conditioned to pellets by temporarily stopping aeration. Observer fish were provided with five observation trials of other individuals feeding near an air stone when aeration was stopped. After the observation trial, fish were conditioned to pellets with the stop of aeration, and then the learning process was evaluated by the increase in the association with the feeding area when aeration was stopped. In 20-mm fish, which were at an immature stage of schooling behaviour, there was no difference in the learning process between observer and non-observer fish. In contrast, 40-mm fish were confirmed to have a well-developed schooling behaviour, and the observer learnt the feeding area more efficiently than the non-observer. This study provides evidence that observational learning develops along with the development of the social interaction. Copyright © 2013 Elsevier B.V. All rights reserved.

  20. What to copy: the key factor of observational learning in striped jack (Pseudocaranx dentex) juveniles.

    Science.gov (United States)

    Takahashi, K; Masuda, R; Yamashita, Y

    2014-03-01

    Animals in social environments can enhance their learning efficiency by observing the behaviour of others. Our previous study showed that learning efficiency of schooling fish increased through the observation of the behaviour of trained demonstrator conspecifics. The present study aimed to verify the key factor of observational learning by investigating what information is important for social transmission of feeding information. A striped jack (Pseudocaranx dentex) observer was provided with one of the five observation treatments: (a) pellets observation, where pellets were dropped near the aeration in an adjacent tank; (b) responding conspecific observation, where a trained conspecific demonstrator responded to the aeration without food in the adjacent tank; (c) foraging conspecific observation, where a conspecific demonstrator foraged near the aeration in the adjacent tank; (d) nearby pellets observation, where pellets were dropped in a transparent column near the aeration in the observer tank; and (e) foraging heterospecific observation, where a filefish (Stephanolepis cirrhifer) demonstrator foraged near the aeration in the adjacent tank. The response to the aeration in these observers was compared with that of controls who did not observe any behaviour. Only individuals who observed foraging conspecifics showed a response to the aeration after observing. These results suggest that observer fish acquire feeding information not through recognition of prey items or through imitation of the demonstrator, but through the vicarious reinforcement of a conspecific for foraging.

  1. Uncaria rhynchophylla (miq) Jack plays a role in neuronal protection in kainic acid-treated rats.

    Science.gov (United States)

    Tang, Nou-Ying; Liu, Chung-Hsiang; Su, Shan-Yu; Jan, Ya-Min; Hsieh, Ching-Tou; Cheng, Chin-Yi; Shyu, Woei-Cherng; Hsieh, Ching-Liang

    2010-01-01

    Uncaria rhynchophylla (Miq) Jack (UR) is one of many Chinese herbs. Our previous studies have shown that UR has both anticonvulsive and free radical-scavenging activities in kainic acid (KA)-treated rats. The aim of the present study was to use the effect of UR on activated microglia, nitric oxide synthase, and apoptotic cells to investigate its function in neuroproction in KA-treated rats. UR of 1.0 or 0.5 g/kg was orally administered for 3 days (first day, second day, and 30 min prior to KA administration on the third day), or 10 mg/kg (intraperitoneal injection, i.p.) N-nitro-L-arginine methyl ester (L-NAME) 30 min prior to KA (2 microg/2 microl) was injected into the right hippocampus region of Sprague-Dawly rats. ED1 (mouse anti rat CD68), neuronal nitric oxide synthase (nNOS), inducible nitric oxide synthase (iNOS) immunoreactive cells and apoptotic cells were observed in the hippocampus region. The results indicated that 1.0 g/kg, 0.5 g/kg of UR and 10 mg/kg of L-NAME reduced the counts of ED1, nNOS, iNOS immunoreactive cells and apoptotic cells in KA-treated rats. This study demonstrates that UR can reduce microglia activation, nNOS, iNOS and apoptosis, suggesting that UR plays a neuro-protective role against neuronal damage in KA-treated rats.

  2. Within crown variation in the relationship between foliage biomass and sapwood area in jack pine.

    Science.gov (United States)

    Schneider, Robert; Berninger, Frank; Ung, Chhun-Huor; Mäkelä, Annikki; Swift, D Edwin; Zhang, S Y

    2011-01-01

    The relationship between sapwood area and foliage biomass is the basis for a lot of research on eco-phyisology. In this paper, foliage biomass change between two consecutive whorls is studied, using different variations in the pipe model theory. Linear and non-linear mixed-effect models relating foliage differences to sapwood area increments were tested to take into account whorl location, with the best fit statistics supporting the non-linear formulation. The estimated value of the exponent is 0.5130, which is significantly different from 1, the expected value given by the pipe model theory. When applied to crown stem sapwood taper, the model indicates that foliage biomass distribution influences the foliage biomass to sapwood area at crown base ratio. This result is interpreted as being the consequence of differences in the turnover rates of sapwood and foliage. More importantly, the model explains previously reported trends in jack pine sapwood area at crown base to tree foliage biomass ratio.

  3. Immune-mediated thrombocytopenia associated with angiostrongylus vasorum infection in a jack russell terrier

    Directory of Open Access Journals (Sweden)

    JO'Neill Emma

    2010-07-01

    Full Text Available Abstract A twenty-month-old Jack Russell terrier was presented with a four-day history of thrombocytopenia, echymotic inguinal haemorrhages, coughing and reduced exercise tolerance. Clinical examination revealed several petechial haemorrhages on the gingivae and small echymotic haemorrhages in the inguinal region, along with mild bilateral epistaxis. Haematology confirmed a platelet count of 1.0 × 10/L. Thoracic radiographs revealed a wide-spread mixed alveolar-interstitial lung pattern, apparent throughout the entire lungfield, but particularly marked within the left lung lobes. A presumptive diagnosis of immune-mediated thrombocytopenia was made and the dog was treated with vincristine and immunosuppressive doses of prednisolone. Initially anaemia developed following gastrointestinal haemorrhage; however, after symptomatic treatment the dog showed a marked clinical improvement. Evaluation for an underlying cause of the disease revealed Angiostrongylus vasorum L1 larvae on faecal analysis and treatment with fenbendazole was commenced. The dog made a full clinical recovery with all treatment was withdrawn within five weeks of diagnosis. This is the second report of immune-mediated thrombocytopenia associated with Angiostrongylus vasorum infection and it is the first to be successfully managed. The report highlights that Angiostrongylus vasorum should be considered in young dogs presented with thrombocytopenia.

  4. Preliminary report and design of using Jack Pines for the phytoremediation of diesel-contaminated soils in northern Saskatchewan

    International Nuclear Information System (INIS)

    McLean, L.; Ireland, J.; Hohn, S.; Herman, L.; Hanna, A.

    1999-01-01

    A study is being conducted to evaluate the feasibility of using Jack Pines for the phytoremediation of diesel-contaminated soils in northern Saskatchewan. The sites have some level of diesel contamination from spills associated with generators belonging to SaskTel. The first phase of the study was conducted under controlled conditions in a greenhouse. Seedlings of Jack Pine were planted in sand with a range of diesel concentrations. A control planting of seedlings with no diesel was also conducted. The study also included control pots of sand with diesel and no seedlings for comparison of diesel degradation. The results from this first phase will help determine the feasibility of performing more extensive testing of phytoremediation on site in northern Saskatchewan. Results will be conclusive in August 2000. So far, the results show that Jack Pines can survive in soil highly contaminated with hydrocarbons. The second phase will include field trials. Diesel concentrations at the sites range from 0 ppm to 30,000 ppm. 4 refs., 2 tabs., 5 figs

  5. Preliminary report and design of using Jack Pines for the phytoremediation of diesel-contaminated soils in northern Saskatchewan

    Energy Technology Data Exchange (ETDEWEB)

    McLean, L; Ireland, J; Hohn, S; Herman, L [ERIN Consulting Ltd., Regina, SK (Canada); Hanna, A [SaskTel, Regina, SK (Canada)

    1999-01-01

    A study is being conducted to evaluate the feasibility of using Jack Pines for the phytoremediation of diesel-contaminated soils in northern Saskatchewan. The sites have some level of diesel contamination from spills associated with generators belonging to SaskTel. The first phase of the study was conducted under controlled conditions in a greenhouse. Seedlings of Jack Pine were planted in sand with a range of diesel concentrations. A control planting of seedlings with no diesel was also conducted. The study also included control pots of sand with diesel and no seedlings for comparison of diesel degradation. The results from this first phase will help determine the feasibility of performing more extensive testing of phytoremediation on site in northern Saskatchewan. Results will be conclusive in August 2000. So far, the results show that Jack Pines can survive in soil highly contaminated with hydrocarbons. The second phase will include field trials. Diesel concentrations at the sites range from 0 ppm to 30,000 ppm. 4 refs., 2 tabs., 5 figs.

  6. Fire Regime in Marginal Jack Pine Populations at Their Southern Limit of Distribution, Riding Mountain National Park, Central Canada

    Directory of Open Access Journals (Sweden)

    Jacques C. Tardif

    2016-09-01

    Full Text Available In central Canada, long fire history reconstructions are rare. In a context where both anthropogenic and climate influences on fire regime have changed, Parks Canada has a mandate to maintain ecological integrity. Here we present a fire history derived from fire-scarred jack pine (Pinus banksiana Lamb. trees growing at their southern distribution limit in Riding Mountain National Park (RMNP. In Lake Katherine Fire Management Unit (LKFMU, a subregion within the park, fire history was reconstructed from archival records, tree-ring records, and charcoal in lake sediment. From about 1450 to 1850 common era (CE the fire return intervals varied from 37 to 125 years, according to models. During the period 1864–1930 the study area burned frequently (Weibull Mean Fire Intervals between 2.66 and 5.62 years; this period coincided with the end of First Nations occupation and the start of European settlement. Major recruitment pulses were associated with the stand-replacing 1864 and 1894 fires. This period nevertheless corresponded to a reduction in charcoal accumulation. The current fire-free period in LKFMU (1930–today coincides with RMNP establishment, exclusion of First Nations land use and increased fire suppression. Charcoal accumulation further decreased during this period. In the absence of fire, jack pine exclusion in LKFMU is foreseeable and the use of prescribed burning is advocated to conserve this protected jack pine ecosystem, at the southern margins of its range, and in the face of potential climate change.

  7. Multimodal instruction and persuasion in disclosing greenwashing discourses

    DEFF Research Database (Denmark)

    Maier, Carmen Daniela

    products. In order to secure correct understanding of environmental claims, to promote behavioral change and to encourage environmental action, some of these movements, organizations and institutions also try to instruct the general public in media literacy. In this paper, I analyze the instructive videos...

  8. Academic Discipline and Personal Finance Instruction in High School

    Science.gov (United States)

    Loibl, Cäzilia; Fisher, Patti J.

    2013-01-01

    Despite public support for personal finance instruction in high school, its effectiveness has not been firmly established. The current study investigates instructional approaches as a reason for these inconsistent outcomes by comparing survey responses of business education, family and consumer sciences, and social studies/economics teachers. The…

  9. Web-Based Instruction: A Guide for Libraries, Third Edition

    Science.gov (United States)

    Smith, Susan Sharpless

    2010-01-01

    Expanding on the popular, practical how-to guide for public, academic, school, and special libraries, technology expert Susan Sharpless Smith offers library instructors the confidence to take Web-based instruction into their own hands. Smith has thoroughly updated "Web-Based Instruction: A Guide for Libraries" to include new tools and trends,…

  10. Population structure of a lodgepole pine (Pinus contorta) and jack pine (P. banksiana) complex as revealed by random amplified polymorphic DNA.

    Science.gov (United States)

    Ye, Terrance Z; Yang, Rong-Cai; Yeh, Francis C

    2002-06-01

    We studied the population structure of a lodgepole (Pinus contorta Dougl.) and jack pine (Pinus banksiana Lamb.) complex in west central Alberta and neighboring areas by assessing random amplified polymorphic DNA (RAPD) variability in 23 lodgepole pine, 9 jack pine, and 8 putative hybrid populations. Of 200 random primers screened, 10 that amplified 39 sharp and reproducible RAPDs were chosen for the study. None of the 39 RAPDs were unique to the parental species. RAPD diversity ranged from 0.085 to 0.190 among populations and averaged 0.143 for lodgepole pine, 0.156 for jack pine, 0.152 for hybrids, and 0.148 for all 40 populations. The estimated population differentiation based on G(ST) was 0.168 for hybrids, 0.162 for lodgepole pine, 0.155 for jack pine, and 0.247 across all 40 populations. Cluster analysis of genetic distances generally separated jack pine from lodgepole pine and hybrids, but no division could be identified that further separated lodgepole pine from hybrids. The observed weak to mild trend of "introgression by distance" in the complex and neighbouring areas was consistent with the view that introgressive hybridization between lodgepole and jack pines within and outside the hybrid zone may have been through secondary contact and primary intergradation, respectively.

  11. Fashions in Instructional Development.

    Science.gov (United States)

    Knapper, Christopher K.

    This paper on instructional development notes the trend toward teaching improvement efforts, classifies instructional development centers in terms of their differing philosophies of operation, and identifies some general problems that have been encountered in institutional efforts to improve teaching and learning. Centers in North America, Europe,…

  12. An official American Thoracic Society proceedings: work-related asthma and airway diseases. Presentations and discussion from the Fourth Jack Pepys Workshop on Asthma in the Workplace.

    Science.gov (United States)

    Tarlo, Susan M; Malo, Jean-Luc

    2013-08-01

    Work-related asthma is a common occupational lung disease. The scope of the Fourth Jack Pepys Workshop that was held in May 2010 went beyond asthma to include discussion of other occupational airway diseases, in particular occupationally related chronic obstructive pulmonary disease (COPD) and bronchiolitis. Aspects explored included public health considerations, environmental aspects, outcome after diagnosis, prevention and surveillance, and other work-related obstructive airway diseases. Consistent methods are needed to accurately estimate the comparative burden of occupation-related airway diseases among different countries. Challenges to accomplishing this include variability in health care delivery, compensation systems, cultural contexts, and social structures. These factors can affect disease estimates, while heterogeneity in occupations and workplace exposures can affect the underlying true prevalence of morbidity. Consideration of the working environment included discussion of practical methods of limiting exposure to respiratory sensitizers, methods to predict new sensitizers before introduction into workplaces, the role of legislated exposure limits, and models to estimate relative validity of various ameliorative measures when complete avoidance of the sensitizer is not feasible. Other strategies discussed included medical surveillance measures and education, especially for young individuals with asthma and new workers about to enter the workforce. Medical outcomes after development of sensitizer-induced occupational asthma are best following earlier diagnosis and removal from further exposure, but a subset may be able to continue working safely provided that exposure is reduced under close follow-up monitoring. It was recognized that occupationally related COPD is common but underappreciated, deserving further study and prevention efforts.

  13. Health Instruction Packages: Consumer--Behavior/Emotions.

    Science.gov (United States)

    Larkin, Vincent; And Others

    Text, illustrations, and exercises are utilized in this set of three learning modules to instruct the general public in methods of exploring human psychology and personal interrelationships. The first module, "The Basic Idea behind Rational-Emotive Therapy" by Vincent Larkin, distinguishes between rational and irrational fears and…

  14. Using Principles of Programmed Instruction

    Science.gov (United States)

    Huffman, Harry

    1971-01-01

    Although programmed instruction in accounting is available, it is limited in scope and in acceptance. Teachers, however, may apply principles of programming to the individualizing of instruction. (Author)

  15. 42 CFR Appendix C to Part 130 - Petition Form, Petition Instructions, and Documentation Checklist

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Petition Form, Petition Instructions, and Documentation Checklist C Appendix C to Part 130 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND... C to Part 130—Petition Form, Petition Instructions, and Documentation Checklist ER31MY00.004...

  16. 76 FR 60900 - Jack A. Danton, D.O.; Decision and Order

    Science.gov (United States)

    2011-09-30

    ... physical examination was Respondent's discussion of UC2's MRI. More specifically, the ALJ found that... MRI might well show that a person has a bulging disc but that the condition is asymptomatic. Yet as... prescribed 180 tablets of Oxycodone 15 mg to UC1, with the dosing instruction to take one tablet every 6...

  17. Permen dan Jelli Sebagai Produk Inovasi dari Pasak Bumi (Eurycoma longifolia Jack

    Directory of Open Access Journals (Sweden)

    Fatmir Edwar

    2015-06-01

    Full Text Available Pasak bumi (Eurycoma longifolia Jack merupakan salah satu jenis tumbuhan hutan tropis di Indonesia yang pemanfaatannya sebagai bahan baku dalam pembuatan obat baik yang modern maupun tradisional.  Pasak bumi mengandung senyawa erikomanon yang ampuh mengobati malaria dan senyawa kuasinoid serta alkaloid yang dapat menghambat pertumbuhan sel kanker. Pasak bumi juga mempunyai senyawa aktif flavonoid yang berfungsi untuk melindungi struktur sel, meningkatkan efektifitas vitamin C, anti inflamasi, mencegah keropos tulang, antioksidan, dan antibiotik. Penelitian ini bertujuan untuk membuat produk permen dan jelli dari bagian akar, batang, daun, ranting, dan kulit pasak bumi sehingga dapat meningkatkan nilai tambah dan memudahkan akses bagi masyarakat luas untuk mendapatkan khasiat zat aktif yang dikandung tumbuhan tersebut dalam bentuk produk inovatif.  Standard produk yang dihasilkan (permen dan jelli mengacu kepada SNI 3547.1:2008 tentang kembang gula keras dan SNI No. 3547.2:2008 tentang kembang gula lunak. Berdasarkan hasil pengujian permen, semua parameter yaitu kadar air, abu, gula, sukrosa, Zn, Hg, Pb, As, Angka Lempeng Total, Coliform, Ecoli, Salmonella dan Kapang/Khamir memenuhi syarat, kecuali untuk parameter Cu dengan nilai antara 3,48–8,17% tidak memenuhi standar yang dipersyaratkan yaitu maksimal 2%. Sedangkan produk jelli sebagian besar memiliki kadar air bervariasi antara 18,20–39,45% tidak memenuhi standar  yang dipersyaratkan maksimal 20%. Hasil dari penelitian ini dapat meningkatkan nilai tambah dan nilai jual dari tumbuhan pasak bumi berupa produk permen dan jelli yang memiliki cita rasa, keunggulan dan manfaat bagi kesehatan.ABSTRAKPasak bumi (Eurycoma longifolia Jack merupakan salah satu jenis tumbuhan hutan tropis di Indonesia yang pemanfaatannya sebagai bahan baku dalam pembuatan obat baik yang modern maupun tradisional.  Pasak bumi mengandung senyawa erikomanon yang ampuh mengobati malaria dan senyawa kuasinoid serta

  18. Variations in otolith patterns, sizes and body morphometrics of jack mackerel Trachurus japonicus juveniles.

    Science.gov (United States)

    Kanaji, Y; Kishida, M; Watanabe, Y; Kawamura, T; Xie, S; Yamashita, Y; Sassa, C; Tsukamoto, Y

    2010-10-01

    Variations in otolith patterns, sizes and body morphometrics of jack mackerel Trachurus japonicus juveniles were investigated. Under transmitted light, translucent (W(t)) and opaque otoliths (W(o)) were detected in juveniles collected from Wakasa Bay between July 2005 and April 2006, whereas only opaque otoliths (G(o)) were detected in Goto-nada Sea individuals between May and June 2006. Three groups of juveniles were distinguished based on differences in hatch season, otolith size and growth history, and body morphometrics. As T. japonicus has different spawning seasons according to spawning grounds, each group was estimated to hatch in different waters. Juveniles with W(t) otoliths were considered to have stayed in coastal habitat longer, as the hatch area was estimated to be near Wakasa Bay. Juveniles with W(o) and G(o) otoliths appear to recruit to coastal waters at larger size, since their hatch areas were estimated to be far from each collection area. Larger otoliths of W(t) were attributed to otolith accretion after the second growth flexion, which was observed only for W(t) . Standard length of W(t) fish at the second otolith growth flexion was estimated to correspond to recruitment size to coastal rocky reefs in Wakasa Bay. Body morphometrics were correlated with otolith size after removing body size effect, suggesting that morphological variations of T. japonicus juveniles were also associated with the timing of recruitment to coastal habitat. © 2010 The Authors. Journal compilation © 2010 The Fisheries Society of the British Isles.

  19. Observed chlorine concentrations during Jack Rabbit I and Lyme Bay field experiments

    Science.gov (United States)

    Hanna, Steven; Chang, Joseph; Huq, Pablo

    2016-01-01

    As part of planning for a series of field experiments where large quantities (up to 20 tons) of pressurized liquefied chlorine will be released, observations from previous chlorine field experiments are analyzed to estimate the ranges of chlorine concentrations expected at various downwind distances. In five field experiment days during the summer 2010 Jack Rabbit I (JR I) field trials, up to two tons of chlorine were released and concentrations were observed at distances, x, from 25 to 500 m. In the 1927 Lyme Bay (LB) experiments, there were four days of trials, where 3-10 tons of chlorine were released in about 15 min from the back of a ship. Concentrations were sampled at LB from four ships sailing across the cloud path at downwind distances in the range from about 350 to 3000 m. Thus, the distances from which JR I concentrations were available slightly overlapped the LB distances. One-minute arc-maximum chlorine concentrations, C (g/m3), were analyzed from four JR I trials and two LB trials. Normalized concentrations (Cu/Q) were plotted versus x (m), where u (m/s) is measured wind speed at heights of 2-10 m and Q (g/s) is continuous mass release rate. It is found that the JR I and LB Cu/Q observations smoothly merge with each other and fall along a line with approximate slope of -2 at distances beyond about 200 m (i.e., Cu/Q is proportional to x-2). At x < 200 m, where dense gas effects are more important, the slope is less (about -1.5). Most of the data points are within a factor of two of the "best-fit" line.

  20. Evaluating the Feasibility of Five Candidate DNA Barcoding Loci for Philippine Lasianthus Jack (Lasiantheae: Rubiaceae).

    Science.gov (United States)

    Arshed, Muhammad Jefte C; Valdez, Marcos B; Alejandro, Grecebio Jonathan D

    2017-01-01

    The pantropical genus Lasianthus Jack is identified for high phenotypic plasticity making traditional taxonomic identification difficult. Having some members with important medicinal properties, a precise complimentary identification through DNA barcoding is needed for species delineation. In this study, 12 samples representing six Philippine Lasianthus species were used to determine the most efficient barcoding loci among the cpDNA markers ( mat K, rbc L, rps 16, and trn T-F) and nrDNA (ITS) based on the criteria of universality, discriminatory power, and resolution of species. The results revealed that ITS has the recommended primer universality, greatest interspecific divergences, and average resolution of species. Among the cpDNA markers, mat K and rbc L are recommended but with minimal resolution of species. While trn T-F showed moderate interspecific variations and resolution of Lasianthus species, rps 16 has the lowest interspecific divergence and resolution of species. Consequently, ITS is the potential ideal DNA barcode for Lasianthus species. ITS, mat K, and rps 16 markers have the excellent amplification and sequence qualityITS marker has the highest interspecific divergence with the maximum values, followed by mat K, rbc L, trn T-F, and rps 16, respectivelyAll markers except rps 16 yielded average resolution to Lasianthus speciesITS marker is the most ideal locus in terms of excellent universality, high interspecific discriminatory ability, and average species resolution. Abbreviations used: ITS: Internal Transcribe Spacer, mat K: maturase K, rbc L: ribulose-1,5-biphospahte-carboxylase, rps 16: ribosomal protein 16 small subunit gene.

  1. Fishery of the Green Jack Caranx caballus (Osteichytes: Carangidae in Las Perlas Archipelago, Pacific Panama

    Directory of Open Access Journals (Sweden)

    James M. Mair

    2012-09-01

    Full Text Available Green Jacks, Caranx caballus, are distributed along the Eastern Pacific coast. In Panama, C. caballus was heavily fished around Las Perlas Archipelago to sustain local markets until 2007, when the archipelago was declared a marine protected area. This first study in Panama, analyzed a sample of 4 990 individuals from Las Perlas, obtained monthly from June 2005 to June 2006, from landings at the central fish market. Average total length was 36.1±6.4cm and optimum length 38.9cm. Approximately 68% of fish lengths were within ±10% of the optimal length but only six (15% were considered mega-spawners. The von Bertalanffy parameters describe a long-lived and fast growing species, while mortality rates revealed that C. caballus is under high fishing pressure. Standard length at which half of the population is mature was 38.8cm, and the size at which individuals matured massively, 33cm. Only 10-13% of the fish were immature. C. caballus reproduces two to three times per year, with peaks in December, April, and probably September, and recruits to the population at least twice per year. Catch per unit effort (CPUE was best predicted by minimum annual values of the Multivariate ENSO/ LNSO Index (MEI (R²=0.54. Results show that C. caballus in Pacific Panama is overfished. We recommend the raising of the minimum capture/landing size of this species in order to increase the proportion of megaspawners in the population and guarantee the sustainability of this resource.

  2. Burn Severity Dominates Understory Plant Community Response to Fire in Xeric Jack Pine Forests

    Directory of Open Access Journals (Sweden)

    Bradley D. Pinno

    2016-04-01

    Full Text Available Fire is the most common disturbance in northern boreal forests, and large fires are often associated with highly variable burn severities across the burnt area. We studied the understory plant community response to a range of burn severities and pre-fire stand age four growing seasons after the 2011 Richardson Fire in xeric jack pine forests of northern Alberta, Canada. Burn severity had the greatest impact on post-fire plant communities, while pre-fire stand age did not have a significant impact. Total plant species richness and cover decreased with disturbance severity, such that the greatest richness was in low severity burns (average 28 species per 1-m2 quadrat and plant cover was lowest in the high severity burns (average 16%. However, the response of individual plant groups differed. Lichens and bryophytes were most common in low severity burns and were effectively eliminated from the regenerating plant community at higher burn severities. In contrast, graminoid cover and richness were positively related to burn severity, while forbs did not respond significantly to burn severity, but were impacted by changes in soil chemistry with increased cover at pH >4.9. Our results indicate the importance of non-vascular plants to the overall plant community in this harsh environment and that the plant community is environmentally limited rather than recruitment or competition limited, as is often the case in more mesic forest types. If fire frequency and severity increase as predicted, we may see a shift in plant communities from stress-tolerant species, such as lichens and ericaceous shrubs, to more colonizing species, such as certain graminoids.

  3. Transcriptome resources and functional characterization of monoterpene synthases for two host species of the mountain pine beetle, lodgepole pine (Pinus contorta) and jack pine (Pinus banksiana)

    Science.gov (United States)

    2013-01-01

    Background The mountain pine beetle (MPB, Dendroctonus ponderosae) epidemic has affected lodgepole pine (Pinus contorta) across an area of more than 18 million hectares of pine forests in western Canada, and is a threat to the boreal jack pine (Pinus banksiana) forest. Defence of pines against MPB and associated fungal pathogens, as well as other pests, involves oleoresin monoterpenes, which are biosynthesized by families of terpene synthases (TPSs). Volatile monoterpenes also serve as host recognition cues for MPB and as precursors for MPB pheromones. The genes responsible for terpene biosynthesis in jack pine and lodgepole pine were previously unknown. Results We report the generation and quality assessment of assembled transcriptome resources for lodgepole pine and jack pine using Sanger, Roche 454, and Illumina sequencing technologies. Assemblies revealed transcripts for approximately 20,000 - 30,000 genes from each species and assembly analyses led to the identification of candidate full-length prenyl transferase, TPS, and P450 genes of oleoresin biosynthesis. We cloned and functionally characterized, via expression of recombinant proteins in E. coli, nine different jack pine and eight different lodgepole pine mono-TPSs. The newly identified lodgepole pine and jack pine mono-TPSs include (+)-α-pinene synthases, (-)-α-pinene synthases, (-)-β-pinene synthases, (+)-3-carene synthases, and (-)-β-phellandrene synthases from each of the two species. Conclusion In the absence of genome sequences, transcriptome assemblies are important for defence gene discovery in lodgepole pine and jack pine, as demonstrated here for the terpenoid pathway genes. The product profiles of the functionally annotated mono-TPSs described here can account for the major monoterpene metabolites identified in lodgepole pine and jack pine. PMID:23679205

  4. Transcriptome resources and functional characterization of monoterpene synthases for two host species of the mountain pine beetle, lodgepole pine (Pinus contorta) and jack pine (Pinus banksiana).

    Science.gov (United States)

    Hall, Dawn E; Yuen, Macaire M S; Jancsik, Sharon; Quesada, Alfonso Lara; Dullat, Harpreet K; Li, Maria; Henderson, Hannah; Arango-Velez, Adriana; Liao, Nancy Y; Docking, Roderick T; Chan, Simon K; Cooke, Janice Ek; Breuil, Colette; Jones, Steven Jm; Keeling, Christopher I; Bohlmann, Jörg

    2013-05-16

    The mountain pine beetle (MPB, Dendroctonus ponderosae) epidemic has affected lodgepole pine (Pinus contorta) across an area of more than 18 million hectares of pine forests in western Canada, and is a threat to the boreal jack pine (Pinus banksiana) forest. Defence of pines against MPB and associated fungal pathogens, as well as other pests, involves oleoresin monoterpenes, which are biosynthesized by families of terpene synthases (TPSs). Volatile monoterpenes also serve as host recognition cues for MPB and as precursors for MPB pheromones. The genes responsible for terpene biosynthesis in jack pine and lodgepole pine were previously unknown. We report the generation and quality assessment of assembled transcriptome resources for lodgepole pine and jack pine using Sanger, Roche 454, and Illumina sequencing technologies. Assemblies revealed transcripts for approximately 20,000 - 30,000 genes from each species and assembly analyses led to the identification of candidate full-length prenyl transferase, TPS, and P450 genes of oleoresin biosynthesis. We cloned and functionally characterized, via expression of recombinant proteins in E. coli, nine different jack pine and eight different lodgepole pine mono-TPSs. The newly identified lodgepole pine and jack pine mono-TPSs include (+)-α-pinene synthases, (-)-α-pinene synthases, (-)-β-pinene synthases, (+)-3-carene synthases, and (-)-β-phellandrene synthases from each of the two species. In the absence of genome sequences, transcriptome assemblies are important for defence gene discovery in lodgepole pine and jack pine, as demonstrated here for the terpenoid pathway genes. The product profiles of the functionally annotated mono-TPSs described here can account for the major monoterpene metabolites identified in lodgepole pine and jack pine.

  5. Examining Ratings on the VAL-ED Evaluation Instrument of Principals to Improve Instructional Leadership Practices

    Science.gov (United States)

    Babin, Erin Pevey

    2017-01-01

    The biggest challenge facing American public schools today is increasing student achievement, and this depends on the educational system's ability to improve the quality of instruction. Principals play a key role in improving the quality of instruction on their campus through the instructional leadership practices they engage in on a daily basis.…

  6. Computer Assisted Instruction

    Science.gov (United States)

    Higgins, Paul

    1976-01-01

    Methodology for developing a computer assisted instruction (CAI) lesson (scripting, programing, and testing) is reviewed. A project done by Informatics Education Ltd. (IEL) for the Department of National Defense (DND) is used as an example. (JT)

  7. Bibliographic Instruction : A Webliography

    Directory of Open Access Journals (Sweden)

    2004-09-01

    Full Text Available A Webliography about the Bibliographic Instruction, it collects a variety of internet resources divided to main categories; directories, articles, bibliographies, organization, mailing lists, and interest groups.

  8. 75 FR 80526 - Chesapeake and Ohio Canal National Historical Park Advisory Commission; Notice of Public Meeting

    Science.gov (United States)

    2010-12-22

    .... Charles D. McElrath Ms. Patricia Schooley Mr. Jack Reeder Ms. Merrily Pierce Topics that will be presented... of the Chesapeake and Ohio Canal National Historical Park Advisory Commission will be held at 9:30 a... personal identifying information from public review, we cannot guarantee that we will be able to do so. The...

  9. A Taxonomy of Instructional Objectives for Developmentally Disabled Persons: Personal Maintenance and Development: Homemaking and Community Life; Leisure; and Travel Domains. Working Paper 85-2. COMPETE: Community-Based Model for Public-School Exit and Transition to Employment.

    Science.gov (United States)

    Dever, Richard B.

    The purpose of Project COMPETE is to use previous research and exemplary practices to develop and validate a model and training sequence to assist retarded youth to make the transition from school to employment in the most competitive environment possible. The taxonomy described in this project working paper focuses on instructional objectives in…

  10. Differential effects of plant ontogeny and damage type on phloem and foliage monoterpenes in jack pine (Pinus banksiana).

    Science.gov (United States)

    Erbilgin, Nadir; Colgan, L Jessie

    2012-08-01

    Coniferous trees have both constitutive and inducible defences that deter or kill herbivores and pathogens. We investigated constitutive and induced monoterpene responses of jack pine (Pinus banksiana Lamb.) to a number of damage types: a fungal associate of the mountain pine beetle (Dendroctonus ponderosae Hopkins), Grosmannia clavigera (Robinson-Jeffrey & R.W. Davidson); two phytohormones, methyl jasmonate (MJ) and methyl salicylate (MS); simulated herbivory; and mechanical wounding. We only included the fungal, MJ and mechanical wounding treatments in the field experiments while all treatments were part of the greenhouse studies. We focused on both constitutive and induced responses between juvenile and mature jack pine trees and differences in defences between phloem and needles. We found that phytohormone applications and fungal inoculation resulted in the greatest increase in monoterpenes in both juvenile and mature trees. Additionally, damage types differentially affected the proportions of individual monoterpenes: MJ-treated mature trees had higher myrcene and β-pinene than fungal-inoculated mature trees, while needles of juveniles inoculated with the fungus contained higher limonene than MJ- or MS-treated juveniles. Although the constitutive monoterpenes were higher in the phloem of juveniles than mature jack pine trees, the phloem of mature trees had a much higher magnitude of induction. Further, induced monoterpene concentrations in juveniles were higher in phloem than in needles. There was no difference in monoterpene concentration between phytohormone applications and G. clavigera inoculation in mature trees, while in juvenile trees MJ was different from both G. clavigera and simulated herbivory in needle monoterpenes, but there was no difference between phytohormone applications and simulated herbivory in the phloem.

  11. Facile synthesis of highly branched jacks-like ZnO nanorods and their applications in dye-sensitized solar cells

    Energy Technology Data Exchange (ETDEWEB)

    Sudhagar, P. [Center for Next Generation Dye-sensitized Solar Cells, WCU Program Department of Energy Engineering, Hanyang University, Seongdong-gu, Seoul- 133 791 (Korea, Republic of); Kumar, R. Saravana [R and D Department of Physics, Kongunadu Arts and Science College, Coimbatore 641 029, Tamilnadu (India); Jung, June Hyuk; Cho, Woohyung [Center for Next Generation Dye-sensitized Solar Cells, WCU Program Department of Energy Engineering, Hanyang University, Seongdong-gu, Seoul- 133 791 (Korea, Republic of); Sathyamoorthy, R. [R and D Department of Physics, Kongunadu Arts and Science College, Coimbatore 641 029, Tamilnadu (India); Won, Jongok [Department of Chemistry, Sejong University, Gwangjin-gu, Seoul 143-747 (Korea, Republic of); Kang, Yong Soo, E-mail: kangys@hanyang.ac.kr [Center for Next Generation Dye-sensitized Solar Cells, WCU Program Department of Energy Engineering, Hanyang University, Seongdong-gu, Seoul- 133 791 (Korea, Republic of)

    2011-09-15

    Graphical abstract: -- Abstract: Highly branched, jacks-like ZnO nanorods architecture were explored as a photoanode in dye-sensitized solar cells, and their photovoltaic performance was compared with that of branch-free ZnO nanorods photoanodes. The highly branched network and large pores of the jacks-like ZnO nanorods electrodes enhances the charge transport, and electrolyte penetration. Thus, the jacks-like ZnO nanorods DSSCs render a higher conversion efficiency of {eta} = 1.82% (V{sub oc} = 0.59 V, J{sub sc} = 5.52 mA cm{sup -2}) than that of the branch-free ZnO nanorods electrodes ({eta} = 1.08%, V{sub oc} = 0.49 V, J{sub sc} = 4.02 mA cm{sup -2}). The incident photon-to-current conversion efficiency measurements reveal that the jacks-like ZnO nanorods DSSCs exhibit higher internal quantum efficiency ({approx}59.1%) than do the branch-free ZnO nanorods DSSC ({approx}52.5%). The charge transfer resistances at the ZnO/dye/electrolyte interfaces investigated using electrochemical impedance spectroscopy showed that the jacks-like ZnO nanorods DSSC had high charge transfer resistance and a slightly longer electron lifetime, thus improving the solar-cell performance.

  12. The lodgepole × jack pine hybrid zone in Alberta, Canada: a stepping stone for the mountain pine beetle on its journey East across the boreal forest?

    Science.gov (United States)

    Lusebrink, Inka; Erbilgin, Nadir; Evenden, Maya L

    2013-09-01

    Historical data show that outbreaks of the tree killing mountain pine beetle are often preceded by periods of drought. Global climate change impacts drought frequency and severity and is implicated in the range expansion of the mountain pine beetle into formerly unsuitable habitats. Its expanded range has recently reached the lodgepole × jack pine hybrid zone in central Alberta, Canada, which could act as a transition from its historical lodgepole pine host to a jack pine host present in the boreal forest. This field study tested the effects of water limitation on chemical defenses of mature trees against mountain pine beetle-associated microorganisms and on beetle brood success in lodgepole × jack pine hybrid trees. Tree chemical defenses as measured by monoterpene emission from tree boles and monoterpene concentration in needles were greater in trees that experienced water deficit compared to well-watered trees. Myrcene was identified as specific defensive compound, since it significantly increased upon inoculation with dead mountain pine beetles. Beetles reared in bolts from trees that experienced water deficit emerged with a higher fat content, demonstrating for the first time experimentally that drought conditions benefit mountain pine beetles. Further, our study demonstrated that volatile chemical emission from tree boles and phloem chemistry place the hybrid tree chemotype in-between lodgepole pine and jack pine, which might facilitate the host shift from lodgepole pine to jack pine.

  13. Facile synthesis of highly branched jacks-like ZnO nanorods and their applications in dye-sensitized solar cells

    International Nuclear Information System (INIS)

    Sudhagar, P.; Kumar, R. Saravana; Jung, June Hyuk; Cho, Woohyung; Sathyamoorthy, R.; Won, Jongok; Kang, Yong Soo

    2011-01-01

    Graphical abstract: -- Abstract: Highly branched, jacks-like ZnO nanorods architecture were explored as a photoanode in dye-sensitized solar cells, and their photovoltaic performance was compared with that of branch-free ZnO nanorods photoanodes. The highly branched network and large pores of the jacks-like ZnO nanorods electrodes enhances the charge transport, and electrolyte penetration. Thus, the jacks-like ZnO nanorods DSSCs render a higher conversion efficiency of η = 1.82% (V oc = 0.59 V, J sc = 5.52 mA cm -2 ) than that of the branch-free ZnO nanorods electrodes (η = 1.08%, V oc = 0.49 V, J sc = 4.02 mA cm -2 ). The incident photon-to-current conversion efficiency measurements reveal that the jacks-like ZnO nanorods DSSCs exhibit higher internal quantum efficiency (∼59.1%) than do the branch-free ZnO nanorods DSSC (∼52.5%). The charge transfer resistances at the ZnO/dye/electrolyte interfaces investigated using electrochemical impedance spectroscopy showed that the jacks-like ZnO nanorods DSSC had high charge transfer resistance and a slightly longer electron lifetime, thus improving the solar-cell performance.

  14. Automated detection and mapping of crown discolouration caused by jack pine budworm with 2.5 m resolution multispectral imagery

    Science.gov (United States)

    Leckie, Donald G.; Cloney, Ed; Joyce, Steve P.

    2005-05-01

    Jack pine budworm ( Choristoneura pinus pinus (Free.)) is a native insect defoliator of mainly jack pine ( Pinus banksiana Lamb.) in North America east of the Rocky Mountains. Periodic outbreaks of this insect, which generally last two to three years, can cause growth loss and mortality and have an important impact ecologically and economically in terms of timber production and harvest. The jack pine budworm prefers to feed on current year needles. Their characteristic feeding habits cause discolouration or reddening of the canopy. This red colouration is used to map the distribution and intensity of defoliation that has taken place that year (current defoliation). An accurate and consistent map of the distribution and intensity of budworm defoliation (as represented by the red discolouration) at the stand and within stand level is desirable. Automated classification of multispectral imagery, such as is available from airborne and new high resolution satellite systems, was explored as a viable tool for objectively classifying current discolouration. Airborne multispectral imagery was acquired at a 2.5 m resolution with the Multispectral Electro-optical Imaging Sensor (MEIS). It recorded imagery in six nadir looking spectral bands specifically designed to detect discolouration caused by budworm and a near-infrared band viewing forward at 35° was also used. A 2200 nm middle infrared image was acquired with a Daedalus scanner. Training and test areas of different levels of discolouration were created based on field observations and a maximum likelihood supervized classification was used to estimate four classes of discolouration (nil-trace, light, moderate and severe). Good discrimination was achieved with an overall accuracy of 84% for the four discolouration levels. The moderate discolouration class was the poorest at 73%, because of confusion with both the severe and light classes. Accuracy on a stand basis was also good, and regional and within stand

  15. Analýza image produktu Jack Daniel´s Tennessee Fire na českém trhu

    OpenAIRE

    Papoušek, Jiří

    2015-01-01

    This Diploma Thesis focuses on a new alcoholic product in the Czech Republic - Jack Daniel's Tennessee Fire. It examines its popularity amongst consumers, its relation to other products in the range of the brand and to the main competitors of the other brands. For better interpretation of the results there is a questionnaire research. The aim of this work is the image analysis of this product in the Czech market and to offer potential recommendations for the brand in the future which come out...

  16. Chemical composition of the leaf essential oils of Murraya koenigii (L. Spreng and Murraya paniculata (L. Jack

    Directory of Open Access Journals (Sweden)

    Jasim Uddin Chowdhury

    2008-06-01

    Full Text Available The chemical composition of the leaf oils of Murraya koenigii (L. Spreng and M. paniculata (L. Jack from Bangladesh was studied by gas chromatography mass spectroscopy (GC-MS. M. koenigii oil contained 39 compounds of which the major is 3-carene (54.2% followed by caryophyllene (9.5%. Oil of M. paniculata contained 58 compounds of which the major are caryophyllene oxide (16.6%, b-caryophyllene (11.8%, spathulenol (10.2%, b-elemene (8.9%, germacrene D (6.9% and cyclooctene, 4-methylene-6-(1-propenylidene (6.4%. The compositions of both oils varied qualitatively and quantitatively.

  17. Neoarchean metamorphism recorded in high-precision Sm-Nd isotope systematics of garnets from the Jack Hills (Western Australia)

    Science.gov (United States)

    Eccles, K. A.; Baxter, E. F.; Mojzsis, S. J.; Marschall, H.; Williams, M. L.; Jercinovic, M. J.

    2013-12-01

    Studies of metasedimentary rocks from the Jack Hills, which host Earth's oldest known detrital minerals, have focused on zircon and occasionally monazite or xenotime, but no attention has been directed toward one of the most common mineral markers of metamorphism: garnet. Garnet can provide a record of the post-depositional, prograde metamorphic history of Archean metasedimentary rocks. Additionally, the use of a newly developed detrital garnet dating technique [1,2] may reveal information about pre-depositional metamorphism that could address lingering questions about the nature and timing of Earth's earliest tectonometamorphic events. Here we investigate garnet from the Jack Hills metasedimentary rocks to test whether they record in situ metamorphism or are a detrital relict of even older metamorphic events. We identified garnet in two bulk quartz-pebble conglomerate samples collected from the 'discovery' outcrop at Eranondoo Hill in the Jack Hills of Western Australia. Electron microprobe analyses of polished grains and SEM measurements of unpolished grain surfaces are consistent, revealing garnet composition indicative of a single generation/population of predominantly almandine-spessartine solid solution (~10-35% mole fraction spessartine). Compositional maps of garnet grains reveal little zoning and no discontinuities, most consistent with a single growth event. Dating Jack Hills' garnet via the Sm-Nd system is possible due to continued development of small sample analysis techniques, including running NdO+ TIMS analyses with Ta2O5 activator [3] permitting Ma for two point isochrons between clean garnet (Sm/Nd ≥ 1.0) and their leached inclusion populations [2]. Four grouped garnet grain separates from one sample yield preliminary dates of 2703.6×6.0Ma, 2612.4×6.0Ma, 2605.0×5.5Ma, and 2567.3×8.3Ma, while the second sample yielded a date of 2579.6×4.6 Ma (2σ). Compositional and geochronologic data indicate likely in situ garnet growth during a late

  18. Characterization of inclusions in terrestrial impact formed zircon: Constraining the formation conditions of Hadean zircon from Jack Hills, Western Australia

    Science.gov (United States)

    Faltys, J. P.; Wielicki, M. M.; Sizemore, T. M.

    2017-12-01

    Due to the discovery and subsequent geochemical analysis of Hadean terrestrial material (e.g. detrital zircon from Jack Hills, Western Australia), a dramatic paradigm shift has occurred in the hypothesized near surface conditions of the first 500 million years of Earth's evolution. From a hellish setting riddled with impactors and not fit for life to a much milder environment that may have been uniquely suitable for the origin of life. Geochemical analyses of these ancient materials have been used to suggest the presence of water at or near the surface as well as the existence of continental crust during the Hadean, both of which have been suggested as necessary for the origin of life. However, the intensity of extraterrestrial bombardment during the Hadean and the effects of such events on the origin of life remains poorly understood. Clearly, as evidenced by Phanerozoic impact events, extraterrestrial impactors have the potential to dramatically effect the environment, particularly the biosphere. Early Earth likely experienced multiple large impact events, as evidenced by the lunar record, however whether those impacts were sufficient to frustrate the origin of life remains an open question. Although multiple lines of evidence, including the inclusion population, suggest the formation of Hadean zircon from Jack Hills as crystallizing in an under-thrust environment from S-type magmas, a recent study has suggested their formation in an impact melt environment analogous to a portion of the Sudbury Igneous Complex at the Sudbury impact structure. To determine between these two formation scenarios we have under-taken an inclusion study of terrestrial impact formed zircon from four of the largest terrestrial impact structures (Sudbury, Canada; Manicouagan, Canada; Vredefort, South Africa; Morokweng, South Africa), to compare to the vast inclusion dataset that exists for Jack Hills zircon. Preliminary data suggests a different inclusion population, from Hadean zircon

  19. Debris flow from 2012 failure of moraine-dammed lake, Three Fingered Jack volcano, Mount Jefferson Wilderness, Oregon

    Science.gov (United States)

    Sherrod, David R.; Wills, Barton B.

    2014-01-01

    In the late spring or early summer of 2012, a flood emanated from a small moraine-dammed lake on the northeast flank of Three Fingered Jack in the Mount Jefferson Wilderness. Channel erosion or slope collapse breached the natural dam of the lake, leading to a sudden lowering of lake level by 2.8 m and discharge of 12,700 cubic meters (m3) of water. The resulting debris flow formed a bouldery deposit extending about 0.35 km downslope.

  20. Was Jack the Ripper a Slaughterman? Human-Animal Violence and the World’s Most Infamous Serial Killer

    Science.gov (United States)

    Knight, Andrew; Watson, Katherine D.

    2017-01-01

    Simple Summary The identity of Jack the Ripper remains one of the greatest unsolved crime mysteries in history. Jack was notorious both for the brutality of his murders and also for his habit of stealing organs from his victims. His speed and skill in doing so, in conditions of poor light and haste, fueled theories he was a surgeon. However, re-examination of a mortuary sketch from one of his victims has revealed several key aspects that strongly suggest he had no professional surgical training. Instead, the technique used was more consistent with that of a slaughterhouse worker. There were many small-scale slaughterhouses in East London in the 1880s, within which conditions were harsh for animals and workers alike. The brutalizing effects of such work only add to concerns highlighted by modern research that those who commit violence on animals are more likely to target people. Modern slaughterhouses are more humane in some ways but more desensitizing in others, and sociological research has indicated that communities with slaughterhouses are more likely to experience the most violent of crimes. The implications for modern animal slaughtering, and our social reliance on slaughterhouses, are explored. Abstract Hundreds of theories exist concerning the identity of “Jack the Ripper”. His propensity for anatomical dissection with a knife—and in particular the rapid location and removal of specific organs—led some to speculate that he must have been surgically trained. However, re-examination of a mortuary sketch of one of his victims has revealed several aspects of incisional technique highly inconsistent with professional surgical training. Related discrepancies are also apparent in the language used within the only letter from Jack considered to be probably authentic. The techniques he used to dispatch his victims and retrieve their organs were, however, highly consistent with techniques used within the slaughterhouses of the day. East London in the 1880s had

  1. Heritability and complex segregation analysis of deafness in Jack Russell Terriers

    Directory of Open Access Journals (Sweden)

    Strain George M

    2007-11-01

    Full Text Available Abstract Background The association between patterns of pigmentation and deafness in the dog has a long-documented history, with reports dating back over one hundred years. Long suspected of having a genetic basis, the search for loci with a pronounced influence in the expression of hearing loss in the dog has yet to be successful. No studies in the dog to date have found a possible influence of a specific colour locus associated with deafness. The present study is intended to evaluate the heritability of deafness in the Jack Russell Terrier (JRT, characterize the mode of inheritance, and evaluate the existence of a sex, coat colour, or coat texture influence on the expression of sensorineural deafness. Results The estimation of heritability of deafness in the JRT was 0.22 when deafness was considered a binary (normal/deaf trait and 0.31 when deafness was considered a three-category (normal/unilateral/bilateral deafness. The influence of coat colour in the incidence of JRT deafness was statistically significant, indicating that dogs with more white are more likely to be deaf. The influence of sex or coat texture was not statistically significant in the incidence of JRT deafness. Complex segregation analysis revealed a model of a single locus with a large effect on the binary measure of hearing loss is not supported. Conclusion This is the first attempt, to our knowledge, to characterize a genetic component responsible for deafness in the JRT. The heritability of deafness in the JRT was found to be 0.22 and 0.31 considering deafness to be a two-category or three-category trait, respectively. There appears to be an influence of coat colour on the expression of deafness. In an attempt to characterize the mode of inheritance of deafness in the JRT, a model of a single locus with a large effect on hearing loss is not supported with this data. Further study is needed to determine if a single locus may be influencing deafness in the JRT. While the

  2. Hydraulic Shearing and Hydraulic Jacking Observed during Hydraulic Stimulations in Fractured Geothermal Reservoir in Pohang, Korea

    Science.gov (United States)

    Min, K. B.; Park, S.; Xie, L.; Kim, K. I.; Yoo, H.; Kim, K. Y.; Choi, J.; Yoon, K. S.; Yoon, W. S.; Lee, T. J.; Song, Y.

    2017-12-01

    Enhanced Geothermal System (EGS) relies on sufficient and irreversible enhancement of reservoir permeability through hydraulic stimulation and possibility of such desirable change of permeability is an open question that can undermine the universality of EGS concept. We report results of first hydraulic stimulation campaign conducted in two deep boreholes in fractured granodiorite geothermal reservoir in Pohang, Korea. Borehole PX-1, located at 4.22 km, was subjected to the injection of 3,907 m3 with flow rate of up to 18 kg/s followed by bleeding off of 1,207 m3. The borehole PX-2, located at 4.35 km, was subjected to the injection of 1,970 m3 with flow rate of up to 46 kg/sIn PX-1, a sharp distinct decline of wellhead pressure was observed at around 16 MPa of wellhead pressure which was similar to the predicted injection pressure to induce hydraulic shearing. Injectivity interpretation before and after the hydraulic shearing indicates that permanent increase of permeability was achieved by a factor of a few. In PX-2, however, injectivity was very small and hydraulic shearing was not observed due possibly to the near wellbore damage made by the remedying process of lost circulation such as using lost circulation material during drilling. Flow rate of larger than 40 kg/s was achieved at very high well head pressure of nearly 90 MPa. Hydraulic jacking, that is reversible opening and closure of fracture with change of injection pressure, was clearly observed. Although sharp increase of permeability due to fracture opening was achieved with elevated injection pressure, the increased permeability was reversed with decreased injection pressure.Two contrasting response observed in the same reservoir at two different boreholes which is apart only 600 m apart provide important implication that can be used for the stimulation strategy for EGS.This work was supported by the New and Renewable Energy Technology Development Program of the Korea Institute of Energy Technology

  3. Paleomagnetism and Anisotropy of Magnetic Susceptibility study of the Miocene Jack Springs Tuff (Nevada, USA)

    Science.gov (United States)

    Shields, S.; Petronis, M. S.; Pluhar, C. J.; Gordon, L.

    2014-12-01

    The mid-Miocene Jack Springs Tuff (JST) outcrops across the western Mina Deflection accommodation zone, west-central Nevada and into eastern California. Previously, the source location for the JST was unknown, yet recent studies northwest of Mono Lake, CA have identified a relatively un-rotated structural block in which to reference the paleomagnetic data. Although new studies have indicated that this block may be rotated up to 13º, we argue that the probable source area is located near the Bodie Hills, CA. At this site, the paleomagnetic reference direction is D = 353°, I = 43°, α95 = 7.7° (Carlson et al, 2013). Based on these data, the JST can be used to measure absolute vertical-axis rotation as well as enable reconstruction of the paleo-topography using the corrected anisotropy of magnetic susceptibility (AMS) data. A total of 19 sites were sampled to constrain Cenozoic to recent vertical axis rotation within the region and AMS experiments were conducted to determine the flow direction of the JST. Curie point estimates indicate that the JST ranges in titanium concentration from 0.042 to 1.10, indicating a low to moderate titanomagnetite phase (Akimoto, 1962). Demagnetization experiments reveal mean destructive fields of the NRM ranging between 15mT and 40mT suggesting that both multi-domain to pseudo-single domain grains are the dominant ferromagnetic phases that carry the remanence and AMS fabric. Preliminary paleomagnetic data yield stable single component demagnetization behavior for most sites that, after structural correction, indicate clockwise vertical axis rotation ranging from +20°± 10° to +60°± 11° between multiple fault blocks. The uncorrected AMS data yield oblate magnetic fabrics that can be used to infer the transport direction, source region, and paleovalley geometry of the JST. These data are tentatively interpreted to indicate west to east transport of the JST across the Mono Basin region into the Mina Deflection that was erupted and

  4. Epiberberine, a natural protoberberine alkaloid, inhibits urease of Helicobacter pylori and jack bean: Susceptibility and mechanism.

    Science.gov (United States)

    Tan, Lihua; Li, Cailan; Chen, Hanbin; Mo, Zhizhun; Zhou, Jiangtao; Liu, Yuhong; Ma, Zhilin; Xu, Yuyao; Yang, Xiaobo; Xie, Jianhui; Su, Ziren

    2017-12-15

    In our previous study, Rhizoma Coptidis extract was found to exert more potent inhibitory effect than its major component berberine towards urease from Helicobacter pylori (HPU) and jack bean (JBU). In continuation of our work, the present study was designed to further comparatively investigate the urease inhibitory activities of five major protoberberine alkaloids in Rhizoma Coptidis, namely berberine, palmatine, coptisine, epiberberine, jateorhizine to identify the bioactive constituent, and illuminate the potential mechanism of action. Results indicated that the five protoberberine alkaloids acted as concentration-dependent inactivators of urease with IC 50 values ranging between 3.0 and 5087μM for HPU and 2.3->10,000μM for JBU, respectively. Notably, epiberberine (EB) was found to be the most potent inhibitor against both ureases with IC 50 values of 3.0±0.01μM for HPU and 2.3±0.01μM for JBU, which was more effective than the standard urease inhibitor, acetohydroxamic acid (83±0.01μM for HPU and 22±0.01μM for JBU, respectively). Further kinetic analysis revealed that the type of EB inhibition against HPU was slow-binding and uncompetitive, with K i of 10.6±0.01μM, while slow-binding and competitive against JBU with K i of 4.6±0.01μM. Addition of thiol reagents, such as l-cysteine, glutathione and dithiothreitol, significantly abolished the inhibition, while Ni 2+ competitive inhibitors, boric acid and sodium fluoride, synergetically inhibited urease with EB, indicating the obligatory role of the active site sulfhydryl group for the inhibition. In addition, binding of EB with the urease proved to be reversible, as about 65% and 90% enzymatic activity of HPU and JBU, respectively, could be restored by dithiothreitol application. These findings highlighted the potential role of Rhizoma Coptidis protoberberine alkaloids, especially EB, as a lead urease inhibitor in the treatment of diseases associated with ureolytic bacteria. Thus, EB had good

  5. Inclusive differentiated instruction

    Directory of Open Access Journals (Sweden)

    Jerković Ljiljana S.

    2017-01-01

    Full Text Available Inclusive differentiated instruction is a new model of didactic instruction, theoretically described and established in this paper for the first time, after being experimentally verified through teaching of the mother tongue (instruction in reading and literature. Inclusive individually planned instruction is based on a phenomenological and constructivist didactic instructional paradigm. This type of teaching is essentially developmental and person-oriented. The key stages of inclusive differentiated instruction of literature are: 1 recognition of individual students' potential and educational needs regarding reading and work on literary texts; 2 planning and preparation of inclusive individually planned instruction in reading and literature; 3 actual class teaching of lessons thus prepared; and 4 evaluation of the student achievement following inclusive differentiated instruction in reading and literature. A highly important element of the planning and preparation of inclusive differentiated instruction is the creation of student profiles and inclusive individualized syllabi. Individualized syllabi specify the following: 1. a brief student profile; 2. the student position on the continuum of the learning outcomes of instruction in the Serbian language; 3. reverse-engineered macro-plan stages of instruction in the Serbian language (3.1. identifying expected outcomes and fundamental qualities of learners' work, 3.2. defining acceptable proofs of their realisation, 3.3. planning learning and teaching experiences, and 3.4. providing material and technical requisites for teaching; 4 the contents and procedure of individualized lessons targeting the student; 5 a plan of syllabus implementation monitoring and evaluation. The continuum of the learning outcomes of inclusive differentiated instruction in literature exists at three main levels, A, B and C. The three levels are: A reading techniques and learning about the main literary theory concepts; B

  6. Mixing Methods in Instructional Research. Forum: The Future of Instructional Communication

    Science.gov (United States)

    Meluch, Andrea L.

    2017-01-01

    "Communication Education's" commitment to publishing rigorous instructional communication research with a diversity of methods is clear in its publication of quantitative, qualitative, and critical articles (Witt, 2012). Here, Andrea Meluch argues that the trends in the most recent research published within this journal indicate a lack…

  7. Development and simulation of the air-jack for emergency like a huge disaster; Kyujoyo eajakki no kaihatsu to sono simyureshon

    Energy Technology Data Exchange (ETDEWEB)

    Katsuyama, Kunihisa.; Ogata, Yuji.; Wada, Yuji. [National Institute for Resources and Environment, Tsukuba (Japan); Hashizume, Kiyoshi.; Nishida, Kenjiro. [Nippon Kayaku Corp., Tokyo (Japan)

    1999-02-28

    When a disaster is so huge like Kobe earthquake, every energy line is killed. Even if we want to help the sufferers, we have no energy to move machines to help them. As collapsed houses are very heavy, we need machines to remove collapsed stuff. Explosives include a lot of energy in themselves. So, an air-jack which has explosives inside was developed to remove collapsed stuff on suffered people. A simple air-jack was made and tested. One concrete block, 50cm x 50cm x 50cm, was lifted by the simple air-jack. A simulation of lifting the concrete block was carried out with a programme ANSYS on the super computer. (author)

  8. Preliminary results of the empirical validation of daily increments in otoliths of jack mackerel Trachurus symmetricus murphyi (Nichols, 1920 marked with oxytetracycline

    Directory of Open Access Journals (Sweden)

    Miguel Araya

    2003-12-01

    Full Text Available The frequency of microincrement formation in sagittae otoliths of jack mackerel Trachurus symmetricus was validated using experiments on captive fish. Adult jack mackerel were injected with a dose of 100 mg of oxytetracycline/kg of fish. A second injection was performed 30 days later. The fish were then sacrificed and their sagittae otoliths were extracted. Thin sections of the otoliths were prepared and observed through an epifluorescent microscope using ultraviolet light. Two fluorescent marks corresponding to the two injections were clearly visible. The average number of microincrements between the two fluorescent marks was 29 (n=10; S.D.=1.63 and the median was 29.3. The Wilcoxon signed-rank test indicated that this value was not significantly different from 30. This result indicates that microincrements in otoliths of adult jack mackerel of between 28.4 and 37.7 cm fork length are formed with a daily frequency.

  9. Biochemical components of seminal plasma and their correlation to the fresh seminal characteristics in Marwari stallions and Poitou jacks

    Directory of Open Access Journals (Sweden)

    Thirumala Rao Talluri

    2017-02-01

    Full Text Available Aim: To investigate various biochemical components of seminal plasma in Marwari stallions and Poitou Jacks and to find out their correlation with that of the seminal characteristics. Materials and Methods: In this study, semen was collected from six Marwari stallions and six Poitou jacks aged from 4 to 6 years and with known fertility status. The semen collection from the stallions were collected during the breeding season, i.e., between the months of April and June. From the collected semen ejaculates, we estimated the values of some biochemical components, viz., total protein content, total lipid content, and enzymes such as glutamic pyruvic transaminase (GPT, glutamic oxaloacetic transaminase (GOT, alkaline phosphatase (ALP, acid phosphatase (ACP, and lactate dehydrogenase (LDH as well as concentrations of glucose, cholesterol, total calcium (Ca, and phosphorus (P and correlations among different seminal parameters were statistically examined using the Pearson correlation coefficient. Results: In this study, we found positive correlations between semen volume as well as sperm concentration and GOT, GPT, ALP and ACP for both the group stallions. Significant correlation between motility and glucose, GOT and GPT could be an indication for their role metabolism and protection against free radicals to the spermatozoa. Conclusion: Based on the results, it is concluded that there is a positive correlation between some biochemical values such as glucose, Ca, ALP, and LDH and seminal parameters which play a key role in capacitation and onward movement of the spermatozoa.

  10. Instructions to Authors – Guidelines for Publication Instructions to Authors – Guidelines for Publication

    Directory of Open Access Journals (Sweden)

    Sustainability in Debate

    2012-07-01

    Full Text Available The journal Sustainability in Debate (SeD, interdisciplinary in its scope, publishes original textsabout the several dimensions of sustainability. It goal is to create a direct channel for debates about sustainable development, environmental management, socioenvironmental conflicts, the state of the environment, environmental governance, among other matters.The journal Sustainability in Debate (SeD, interdisciplinary in its scope, publishes original texts about the several dimensions of sustainability. It goal is to create a direct channel for debates about sustainable development, environmental management, socioenvironmental conflicts, the state of the environment, environmental governance, among other matters.

  11. Apparel. Teacher's Instructional Guide.

    Science.gov (United States)

    Rambo, Patti

    This instructional guide for a one-half credit technological laboratory course for grades 10-12 focuses on apparel from the perspectives of personal decision making related to apparel, the apparel industry, and career preparation. Introductory materials are a course description; overview of course design; facilities, equipment, and resources; and…

  12. Instructional Guidelines. Welding.

    Science.gov (United States)

    Fordyce, H. L.; Doshier, Dale

    Using the standards of the American Welding Society and the American Society of Mechanical Engineers, this welding instructional guidelines manual presents a course of study in accordance with the current practices in industry. Intended for use in welding programs now practiced within the Federal Prison System, the phases of the program are…

  13. Windows into Instructional Practice

    Science.gov (United States)

    Steinbacher-Reed, Christina; Rotella, Sam A.

    2017-01-01

    Administrators are often removed from the daily instructional realities in classrooms, while teachers aren't given enough opportunities to lead in their schools, write Christina Steinbacher-Reed and Sam A. Rotella Jr. The result is a wall that prevents the two parties from collaborating in a way that improves school culture, teaching practices,…

  14. Computers in writing instruction

    NARCIS (Netherlands)

    Schwartz, Helen J.; van der Geest, Thea; Smit-Kreuzen, Marlies

    1992-01-01

    For computers to be useful in writing instruction, innovations should be valuable for students and feasible for teachers to implement. Research findings yield contradictory results in measuring the effects of different uses of computers in writing, in part because of the methodological complexity of

  15. Gaze Interactive Building Instructions

    DEFF Research Database (Denmark)

    Hansen, John Paulin; Ahmed, Zaheer; Mardanbeigi, Diako

    We combine eye tracking technology and mobile tablets to support hands-free interaction with digital building instructions. As a proof-of-concept we have developed a small interactive 3D environment where one can interact with digital blocks by gaze, keystroke and head gestures. Blocks may be moved...

  16. Job Instruction Training.

    Science.gov (United States)

    Pfau, Richard H.

    Job Instruction Training (JIT) is a step-by-step, relatively simple technique used to train employees on the job. It is especially suitable for teaching manual skills or procedures; the trainer is usually an employee's supervisor but can be a co-worker. The JIT technique consists of a series of steps that a supervisor or other instructor follows…

  17. Nuclear Energy. Instructional Materials.

    Science.gov (United States)

    Jordan, Kenneth; Thessing, Dan

    This document is one of five learning packets on alternative energy (see note) developed as part of a descriptive curriculum research project in Arkansas. The overall objectives of the learning packets are to improve the level of instruction in the alternative energies by vocational exploration teachers, and to facilitate the integration of new…

  18. Wind Power. Instructional Materials.

    Science.gov (United States)

    Jordan, Kenneth; Thessing, Dan

    This document is one of five learning packets on alternative energy developed as part of a descriptive curriculum research project in Arkansas (see note). The overall objectives of the learning packets are to improve the level of instruction in the alternative energies by vocational exploration teachers, and to facilitate the integration of new…

  19. Instructional Psychology 1976 - 1981,

    Science.gov (United States)

    1982-06-01

    business it is to carry out applied work in the design of instructional content and delivery. These organizations include specialized divisions of...34learning disabilities" label: An experimental analysis. Comtemporary Educational Psychology, 1977, 2, 292-297. Allington, R. L. Sensitivity to

  20. Reviews in instructional video

    NARCIS (Netherlands)

    van der Meij, Hans

    2017-01-01

    This study investigates the effectiveness of a video tutorial for software training whose construction was based on a combination of insights from multimedia learning and Demonstration-Based Training. In the videos, a model of task performance was enhanced with instructional features that were

  1. Computer-assisted instruction

    NARCIS (Netherlands)

    Voogt, J.; Fisser, P.; Wright, J.D.

    2015-01-01

    Since the early days of computer technology in education in the 1960s, it was claimed that computers can assist instructional practice and hence improve student learning. Since then computer technology has developed, and its potential for education has increased. In this article, we first discuss

  2. Scaffolding in Assisted Instruction

    Directory of Open Access Journals (Sweden)

    2007-01-01

    Full Text Available On-The-Job Training, developed as direct instruction, is one of the earliest forms of training. This method is still widely in use today because it requires only a person who knows how to do the task, and the tools the person uses to do the task. This paper is intended to be a study of the methods used in education in Knowledge Society, with more specific aspects in training the trainers; as a result of this approach, it promotes scaffolding in assisted instruction as a reflection of the digital age for the learning process. Training the trainers in old environment with default techniques and designing the learning process in assisted instruction, as an application of the Vygotskian concept of the zone of proximal development (ZPD to the area of computer literacy for the younger users, generate diversity in educational communities and requires standards for technology infrastructure, standards for the content, developed as a concepts map, and applications for personalized in-struction, based on ZPD theory.

  3. Characteristics of Instructional Videos

    Science.gov (United States)

    Beheshti, Mobina; Taspolat, Ata; Kaya, Omer Sami; Sapanca, Hamza Fatih

    2018-01-01

    Nowadays, video plays a significant role in education in terms of its integration into traditional classes, the principal delivery system of information in classes particularly in online courses as well as serving as a foundation of many blended classes. Hence, education is adopting a modern approach of instruction with the target of moving away…

  4. Facility transition instruction

    International Nuclear Information System (INIS)

    Morton, M.R.

    1997-01-01

    The Bechtel Hanford, Inc. facility transition instruction was initiated in response to the need for a common, streamlined process for facility transitions and to capture the knowledge and experience that has accumulated over the last few years. The instruction serves as an educational resource and defines the process for transitioning facilities to long-term surveillance and maintenance (S and M). Generally, these facilities do not have identified operations missions and must be transitioned from operational status to a safe and stable configuration for long-term S and M. The instruction can be applied to a wide range of facilities--from process canyon complexes like the Plutonium Uranium Extraction Facility or B Plant, to stand-alone, lower hazard facilities like the 242B/BL facility. The facility transition process is implemented (under the direction of the US Department of Energy, Richland Operations Office [RL] Assistant Manager-Environmental) by Bechtel Hanford, Inc. management, with input and interaction with the appropriate RL division and Hanford site contractors as noted in the instruction. The application of the steps identified herein and the early participation of all organizations involved are expected to provide a cost-effective, safe, and smooth transition from operational status to deactivation and S and M for a wide range of Hanford Site facilities

  5. Paratransit: An Instructional Module.

    Science.gov (United States)

    Scalici, Anthony

    A concept-based introduction to paratransit is provided in this instructional module for undergraduate and graduate transportation-related courses for disciplines such as engineering, business, marketing, and technology. The concept of paratransit generally refers to modes of transportation other than mass transit and solo-driven automobiles. The…

  6. Listening strategies instruction

    DEFF Research Database (Denmark)

    Nogueroles López, Marta

    2017-01-01

    , who presented similar level of Spanish, needs, educational and cultural background, but did not receive such a training. The listening strategies instruction consisted in integrating the development of listening strategies into a regular course of Spanish as a foreign language. Data referring...

  7. Inquiry-Oriented Instruction: A Conceptualization of the Instructional Principles

    Science.gov (United States)

    Kuster, George; Johnson, Estrella; Keene, Karen; Andrews-Larson, Christine

    2018-01-01

    Research has highlighted that inquiry-based learning (IBL) instruction leads to many positive student outcomes in undergraduate mathematics. Although this research points to the value of IBL instruction, the practices of IBL instructors are not well-understood. Here, we offer a characterization of a particular form of IBL instruction:…

  8. Instructional Leadership Practices in Singapore

    Science.gov (United States)

    Ng, Foo Seong David; Nguyen, Thanh Dong; Wong, Koon Siak Benjamin; Choy, Kim Weng William

    2015-01-01

    This paper presents a review of the literature on principal instructional leadership in Singapore. The authors investigated the dimensions of instructional leadership in the practices of Singapore principals and highlighted the strategies these leaders adopt to enact their instructional roles. Singapore principals were found to play an active role…

  9. Putting instruction sequences into effect

    NARCIS (Netherlands)

    Bergstra, J.A.

    2011-01-01

    An attempt is made to define the concept of execution of an instruction sequence. It is found to be a special case of directly putting into effect of an instruction sequence. Directly putting into effect of an instruction sequences comprises interpretation as well as execution. Directly putting into

  10. The Measurement of Instructional Accomplishments.

    Science.gov (United States)

    Fraley, Lawrence E.; Vargas, Ernest A.

    Instructional System Technology in recent years has been characterized by an increase in individualized instruction and the modularization of the curriculum. In traditional systems the learners are forced to take blocks of instruction the size of entire courses and these are much too large. The courses can now be broken down into conceptual…

  11. Intelligent Frameworks for Instructional Design.

    Science.gov (United States)

    Spector, J. Michael; And Others

    1992-01-01

    Presents a taxonomy describing various uses of artificial intelligence techniques in automated instructional development systems. Instructional systems development is discussed in relation to the design of computer-based instructional courseware; two systems being developed at the Air Force Armstrong Laboratory are reviewed; and further research…

  12. Very Long Instruction Word Processors

    Indian Academy of Sciences (India)

    Explicitly Parallel Instruction Computing (EPIC) is an instruction processing paradigm that has been in the spot- light due to its adoption by the next generation of Intel. Processors starting with the IA-64. The EPIC processing paradigm is an evolution of the Very Long Instruction. Word (VLIW) paradigm. This article gives an ...

  13. Motivational elements in user instructions

    NARCIS (Netherlands)

    Loorbach, N.R.

    2013-01-01

    Concerning the design of user instructions, two view can be distinguished. The traditional view considers instructions as purely instrumental documents. The more and more emerging affective view still assumes that above all, instructions should enable readers to perform tasks. But in order to

  14. Effects of introgression on the genetic population structure of two ecologically and economically important conifer species: lodgepole pine (Pinus contorta var. latifolia) and jack pine (Pinus banksiana).

    Science.gov (United States)

    Cullingham, Catherine I; Cooke, Janice E K; Coltman, David W

    2013-10-01

    Forest trees exhibit a remarkable range of adaptations to their environment, but as a result of frequent and long-distance gene flow, populations are often only weakly differentiated. Lodgepole and jack pine hybridize in western Canada, which adds the opportunity for introgression through hybridization to contribute to population structure and (or) adaptive variation. Access to large sample size, high density SNP datasets for these species would improve our ability to resolve population structure, parameterize introgression, and separate the influence of demography from adaptation. To accomplish this, 454 transcriptome reads for lodgepole and jack pine were assembled using Newbler and MIRA, the assemblies mined for SNPs, and 1536 SNPs were selected for typing on lodgepole pine, jack pine, and their hybrids (N = 536). We identified population structure using both Bayesian clustering and discriminate analysis of principle components. Introgressed SNP loci were identified and their influence on observed population structure was assessed. We found that introgressed loci resulted in increased differentiation both within lodgepole and jack pine populations. These findings are timely given the recent mountain pine beetle population expansion in the hybrid zone, and will facilitate future studies of adaptive traits in these ecologically important species.

  15. Durable Reliability of Jack-up Platforms. The impact of Fatigue, Fracture and Effect of Extreme Environmental Loads on the Structural Reliability

    NARCIS (Netherlands)

    Shabakhty, N.

    2004-01-01

    A variety of factors is governing the operational conditions of jack-up platforms. The platforms are moved to different locations, which are causing changes in water depth, environmental and seabed conditions, drilling depths, payload etc. Insight should be gained in how the different factors affect

  16. Movable chain jacks and winches: case study of PETROBRAS' P58/)62and ENI's Goliat

    Energy Technology Data Exchange (ETDEWEB)

    Grindheim, Reidar [Aker Pusnes AS, Arendal (Norway)

    2012-07-01

    Recently, Aker Solutions delivered a movable chain jack system to PETROBRAS's P58/P62 FPSOs and a movable windlass system to ENI's Goliat FPSO. This paper highlights the main differences between the two systems and when it is beneficial to employ movable systems. There are many parameters to consider in determining which system to use - also a traditional system involving a single winch or chain jack per mooring line may in many cases be preferred. The movable chain jack concept is designed to operate multiple mooring lines within the same cluster. A single chain jack is lifted by a skidding gantry and moved to the next mooring line and so forth. Installation and messenger chains are moved using a large sliding chain locker allowing for later offloading of the surplus chain. The movable windlass system is also designed to operate multiple mooring lines within the same cluster. However, in this case the winch is rotary and can operate via electric or hydraulic power. One of the main considerations is to move the windlass and keep the mooring lines intact without cutting them. (author)

  17. Anti-inflammatory effect of ethanolic extract of spine, skin and rind of Jack fruit peel - A comparative study.

    Science.gov (United States)

    Meera, M; Ruckmani, A; Saravanan, R; Lakshmipathy Prabhu, R

    2017-10-09

    The present study was conducted to identify the chemical constituents and evaluate the anti-inflammatory activity of crude ethanolic extracts of spine, skin and rind of jack fruit (Artocarpus heterophyllus) peel. Polyphenol and flavonoid contents were assessed using Folin's Ciocalteu reagent and aluminium chloride methods which revealed 316, 355 and 382 mg tannic acid equivalent/g of polyphenol and 96.7, 131.6 and 164.6 mg quercetin equivalent/g of flavonoid in spine, skin and rind, respectively. Anti-inflammatory activity of all three extracts was comparable to diclofenac in vitro and in vivo studies. Skin exhibited maximum anti-inflammatory activity, rind had preferential inhibition on Cyclooxygenase-2 and spine and skin inhibited both Cyclooxygenase-1 and 2 in vitro.

  18. Chemical composition of the leaf essential oils of Murraya koenigii (L. Spreng and Murraya paniculata (L. Jack

    Directory of Open Access Journals (Sweden)

    Jasim Uddin Chowdhury

    2008-12-01

    Full Text Available The chemical composition of the leaf oils of Murraya koenigii (L. Spreng and M. paniculata (L. Jack from Bangladesh was studied by gas chromatography mass spectroscopy (GC-MS. M. koenigii oil contained 39 compounds of which the major is 3-carene (54.2% followed by caryophyllene (9.5%. Oil of M. paniculata contained 58 compounds of which the major are caryophyllene oxide (16.6%, beta-caryophyllene (11.8%, spathulenol (10.2%, beta-elemene (8.9%, germacrene D (6.9% and cyclooctene, 4-methylene-6-(1-propenylidene (6.4%. The composi-tions of both oils varied qualitatively and quantitatively.

  19. What can zircon ages from the Jack Hills detrital zircon suite really tell us about Hadean geodynamics?

    Science.gov (United States)

    Whitehouse, Martin; Nemchin, Alexander

    2015-04-01

    As the only direct sample of the Hadean Earth, detrital zircon grains from the Jack Hills, Western Australia, have been the subject of intense investigation over the almost three decades since their discovery. A wide variety of geochemical and isotopic analyses of these grains, as well as their mineral inclusions, have been used variously to support two fundamentally different models for Hadean geodynamics: (i) Some form of (not necessarily modern-style) plate recycling generating felsic (continental-type?) crust at the boundaries [1, 2], or conversely (ii) the persistence of a long-lived, stagnant basaltic lid within which magmatism occurred as a result of internal temperature perturbations and/or impacts [3, 4], a model also generally consistent with a wide range of observations from post-Hadean geochemical reservoirs. Despite the considerable time and resources expended, the majority of these studies uncritically accept the individual U-Pb zircon ages, even though their veracity is key to many of the interpretations [5, 6]. We report here the results of an in-depth evaluation of all published (and new) U-Pb ages from the Jack Hills zircon suite in order to define age populations that can be used with a high degree of confidence in geodynamic interpretations. A notable problem in the interpretation of U-Pb data from ancient zircon grains (including those as young as the Neoarchean) is that disturbance of the systematics even several 100 Ma after crystallization causes data to spread along the concordia curve without becoming discernably discordant within the relatively large error bounds associated with U/Pb ages from in situ dating methods (e.g. SIMS). While 207Pb/206Pb ages are typically more precise, individually they provide no means to detect Pb-loss-induced younging. However, if two or preferably more analyses have been made in the same zircon growth zone, a reasonable evaluation of the possibility of Pb-loss can be made. In the available Jack Hills zircon

  20. Eurycomanone and Eurycomanol from Eurycoma longifolia Jack as Regulators of Signaling Pathways Involved in Proliferation, Cell Death and Inflammation

    Directory of Open Access Journals (Sweden)

    Shéhérazade Hajjouli

    2014-09-01

    Full Text Available Eurycomanone and eurycomanol are two quassinoids from the roots of Eurycoma longifolia Jack. The aim of this study was to assess the bioactivity of these compounds in Jurkat and K562 human leukemia cell models compared to peripheral blood mononuclear cells from healthy donors. Both eurycomanone and eurycomanol inhibited Jurkat and K562 cell viability and proliferation without affecting healthy cells. Interestingly, eurycomanone inhibited NF-κB signaling through inhibition of IκBα phosphorylation and upstream mitogen activated protein kinase (MAPK signaling, but not eurycomanol. In conclusion, both quassinoids present differential toxicity towards leukemia cells, and the presence of the α,β-unsaturated ketone in eurycomanone could be prerequisite for the NF-κB inhibition.

  1. Instructional immediacy in elearning.

    Science.gov (United States)

    Walkem, Kerrie

    2014-01-01

    Instructor immediacy has been positively associated with many desirable academic outcomes including increased student learning. This study extends existing understanding of instructional immediacy behaviours in elearning by describing postgraduate nursing students' reflections on their own experience. An exploratory, descriptive survey design was used to collect qualitative data. Participants were asked what behaviours or activities help to create rapport or a positive interpersonal connection (immediacy) between students and their online teacher(s). Thematic analysis of the data revealed three main themes: acknowledging and affirming student's personal and professional responsibilities; providing clear and timely information; and utilising rich media. These findings give lecturers insight into instructional strategies they may adopt to increase immediacy in elearning and hence improve student learning outcomes.

  2. Hi-Jack: a novel computational framework for pathway-based inference of host–pathogen interactions

    KAUST Repository

    Kleftogiannis, Dimitrios A.

    2015-03-09

    Motivation: Pathogens infect their host and hijack the host machinery to produce more progeny pathogens. Obligate intracellular pathogens, in particular, require resources of the host to replicate. Therefore, infections by these pathogens lead to alterations in the metabolism of the host, shifting in favor of pathogen protein production. Some computational identification of mechanisms of host-pathogen interactions have been proposed, but it seems the problem has yet to be approached from the metabolite-hijacking angle. Results: We propose a novel computational framework, Hi-Jack, for inferring pathway-based interactions between a host and a pathogen that relies on the idea of metabolite hijacking. Hi-Jack searches metabolic network data from hosts and pathogens, and identifies candidate reactions where hijacking occurs. A novel scoring function ranks candidate hijacked reactions and identifies pathways in the host that interact with pathways in the pathogen, as well as the associated frequent hijacked metabolites. We also describe host-pathogen interaction principles that can be used in the future for subsequent studies. Our case study on Mycobacterium tuberculosis (Mtb) revealed pathways in human-e.g. carbohydrate metabolism, lipids metabolism and pathways related to amino acids metabolism-that are likely to be hijacked by the pathogen. In addition, we report interesting potential pathway interconnections between human and Mtb such as linkage of human fatty acid biosynthesis with Mtb biosynthesis of unsaturated fatty acids, or linkage of human pentose phosphate pathway with lipopolysaccharide biosynthesis in Mtb. © The Author 2015. Published by Oxford University Press. All rights reserved.

  3. A Critique of Instructional

    OpenAIRE

    McKernan, James

    2010-01-01

    The ‘objectives model’ of curriculum planning, predicated upon behavioural performances, has become the dominant form of curriculum planning in Europe and elsewhere in the world. This paper argues that the objectives model is satisfactory for training or instruction, but falls down when applied to a true sense of ‘education’. The paper outlines 13 limitations on the use of educational objectives. It is argued that those interested in using objectives are guided by evaluation as assessment rat...

  4. Effective Multicultural Instruction

    Directory of Open Access Journals (Sweden)

    Franklin T. Thompson

    2014-02-01

    Full Text Available The reason why the Trayvon Martin murder trial and similar court cases create a philosophical rift in our nation is due in part to flaws in the delivery of multicultural education. Traditional multicultural instruction does not prepare citizens for the subtleties and complexities of race relations. This study investigates critical strategies and practices that address multicultural missing gaps. I also seek to fill a void in the literature created by a lack of student input regarding teaching strategies that encourage lifelong learning. Students (N = 337 enrolled at a Midwestern university were asked to rate the efficacy of selected instructional strategies. Utilizing a 9-point Likert-type scale, students gave themselves a personal growth rating of 7.15 (SD = 1.47. Variables important to predicting that growth (R2 = .56, p < .0005 were a six-factor variable known as a non-color-blind instructional approach (t = 10.509, p ≤ .0005, allowing students an opportunity to form their own opinions apart from the instructor (t = 4.797, p ≤ .0005, and a state law that mandated multicultural training (t = 3.234, p = .001. Results demonstrated that utilizing a 35% traditional and 65% critical pedagogy mixture when teaching multicultural education helped promote win/win scenarios for education candidates hoping to become difference makers.

  5. Fatty Acid Composition of Novel Host Jack Pine Do Not Prevent Host Acceptance and Colonization by the Invasive Mountain Pine Beetle and Its Symbiotic Fungus

    Science.gov (United States)

    Ishangulyyeva, Guncha; Najar, Ahmed; Curtis, Jonathan M.

    2016-01-01

    Fatty acids are major components of plant lipids and can affect growth and development of insect herbivores. Despite a large literature examining the roles of fatty acids in conifers, relatively few studies have tested the effects of fatty acids on insect herbivores and their microbial symbionts. Particularly, whether fatty acids can affect the suitability of conifers for insect herbivores has never been studied before. Thus, we evaluated if composition of fatty acids impede or facilitate colonization of jack pine (Pinus banksiana) by the invasive mountain pine beetle (Dendroctonus ponderosae) and its symbiotic fungus (Grosmannia clavigera). This is the first study to examine the effects of tree fatty acids on any bark beetle species and its symbiotic fungus. In a novel bioassay, we found that plant tissues (hosts and non-host) amended with synthetic fatty acids at concentrations representative of jack pine were compatible with beetle larvae. Likewise, G. clavigera grew in media amended with lipid fractions or synthetic fatty acids at concentrations present in jack pine. In contrast, fatty acids and lipid composition of a non-host were not suitable for the beetle larvae or the fungus. Apparently, concentrations of individual, rather than total, fatty acids determined the suitability of jack pine. Furthermore, sampling of host and non-host tree species across Canada demonstrated that the composition of jack pine fatty acids was similar to the different populations of beetle’s historical hosts. These results demonstrate that fatty acids composition compatible with insect herbivores and their microbial symbionts can be important factor defining host suitability to invasive insects. PMID:27583820

  6. A instrução pública na França revolucionária: considerações a partir do Essais sur l’enseignement en general et sur celui des mathématiques en particulier, de Sylvestre-François Lacroix - The public instruction in revolutionary France: some remarks accord

    Directory of Open Access Journals (Sweden)

    Antonio Vicente Marafioti Garnica

    2013-04-01

    Full Text Available O artigo aborda o livro Essais sur l'enseignement en général, et sur celui des mathématiques en particulier, de Sylvestre-François Lacroix, publicado originalmente na França em 1805, enfatizando sua primeira parte, na qual o autor discute a instrução pública e, particularmente, as escolas centrais da França revolucionária.Palavras-chave: Sylvestre-François Lacroix (1765-1843, instrução pública, Essais sur l'enseigne-ment en général, et sur celui des mathématiques en particulier, iluminismo, França. The public instruction in revolutionary France: some remarks according to Lacroix’s Essais sur l’enseignement en general et sur celui des mathématiques en particulierAbstractThe article discusses the book Essais sur l'enseignement en général, et sur celui des mathématiques en particulier, by Sylvestre-François Lacroix, originally published in France in 1805. The first part of the book, in which the author discusses public education, and particularly the central schools of revolutionary France, is emphasized.Key-words: Sylvestre-François Lacroix (1765-1843, public instruction, Essais sur l'enseignement en général, et sur celui des mathématiques en particulier, enlightenment, France. Instrucción pública en Francia revolucionaria: consideraciones a la vista del libro Essais sur l’enseignement en general et sur celui des mathématiques en particulier, de Sylvestre-François LacroixResumenEl artículo aborda el libro Essais sur l'enseignement en général, et sur celui des mathématiques en particulier de Sylvestre-François Lacroix, publicado originalmente en Francia, en 1805, haciendo hincapié en su primera parte, en la que el autor habla de la instrucción pública y en particular de las escuelas centrales en Francia en el período revolucionario.Palabras-clave: Sylvestre-François Lacroix (1765-1843, instrucción pública, Essais sur l'enseigne-ment en général, et sur celui des mathématiques en particulier

  7. "Every jack to his trade?": power, identity and market segmentation in the homosexual movement

    Directory of Open Access Journals (Sweden)

    Isadora Lins França

    Full Text Available The present article aims at exploring the relations between the homosexual movement and the segmented consumption market directed at such public in São Paulo. Starting with the social drama analyzed in the text, which involves militant homosexuals and transvestites, the so-called actors of such segmented market, and the attending public, we intend to delineate ways to understand these relations, as well as some processes related to the constitution of the political subject of the homosexual movement in a context of both multiplication of identifying categories and destabilization of this subject.

  8. Multilevel library instruction for emerging nursing roles.

    Science.gov (United States)

    Francis, B W; Fisher, C C

    1995-10-01

    As new nursing roles emerge that involve greater decision making than in the past, added responsibility for outcomes and cost control, and increased emphasis on primary care, the information-seeking skills needed by nurses change. A search of library and nursing literature indicates that there is little comprehensive library instruction covering all levels of nursing programs: undergraduate, returning registered nurses, and graduate students. The University of Florida is one of the few places that has such a multilevel, course-integrated curriculum in place for all entrants into the nursing program. Objectives have been developed for each stage of learning. The courses include instruction in the use of the online public access catalog, printed resources, and electronic databases. A library classroom equipped with the latest technology enables student interaction with electronic databases. This paper discusses the program and several methods used to evaluate it.

  9. USING GOOGLE+ FOR INSTRUCTION

    Directory of Open Access Journals (Sweden)

    Kevin YEE

    Full Text Available Introduced in July, 2011 in a beta test of invited users only, the new social media service Google+ (or G+ quickly spread by word of mouth, and Google leader Larry Page (2011 blogged that within sixteen days it had 10 million users. By August, it had 25 million users (Cashmore, 2011. Even with slower growth ahead (still with no marketing budget, the service looks likely to crest 100 million users perhaps as early as ten months, a feat that took Facebook three years. Other social networks, most notably Facebook and Twitter, have been used increasingly as instructional tools, since they are platforms with which students are already familiar (Maloney, 2007; McLoughlin & Lee, 2007. Selwyn (2009 found that students often eschew official channels for communication in favor of less formal community-based formats such as Facebook, implying a growing need for instructional communication tools that will be used willingly by students. The question is whether Google+ can be used like Twitter or Facebook to augment instruction, or even, perhaps, to improve upon those predecessors for academic purposes. Google+ is like Twitter in that anyone can follow a given user’s posts. There is no direct “friend” relationship required to read the posts written by others. However, it also approximates some features of Facebook. Rather than friends sorted into “lists” like in Facebook, Google+ allows users to place feeds into one or more “circles,” the better to monitor (or control the flow of information to and from different audiences. Circles are more intuitive, and more central to the experience, than the Facebook lists. They provide an explicit organizational structure, compared to the less-obvious listing functionality, which feels like an afterthought, found in Facebook.

  10. EST Vocabulary Instruction

    Directory of Open Access Journals (Sweden)

    Célia D.S. Bell

    2012-05-01

    Full Text Available This study aims at contributing to the investigation on the instruction of EST (English for Science and Technology vocabulary, in terms of receptive use of the language. It evaluates the effectiveness of two teaching approaches to the acquisition of vocabulary. The first approach consisted of teaching vocabulary through the use of dictionaries, where the words were merely translated into the learners’ L1 or defined in the target language thus promoting superficial level of word processing. The second approach employed activities promoting deep level of word processing. Data were analysed quantitatively. Results indicated that the two approaches seem to have some equipotentiality, as far as EST vocabulary is concerned.

  11. The Mere Exposure Instruction Effect.

    Science.gov (United States)

    Van Dessel, Pieter; Mertens, Gaëtan; Smith, Colin Tucker; De Houwer, Jan

    2017-09-01

    The mere exposure effect refers to the well-established finding that people evaluate a stimulus more positively after repeated exposure to that stimulus. We investigated whether a change in stimulus evaluation can occur also when participants are not repeatedly exposed to a stimulus, but are merely instructed that one stimulus will occur frequently and another stimulus will occur infrequently. We report seven experiments showing that (1) mere exposure instructions influence implicit stimulus evaluations as measured with an Implicit Association Test (IAT), personalized Implicit Association Test (pIAT), or Affect Misattribution Procedure (AMP), but not with an Evaluative Priming Task (EPT), (2) mere exposure instructions influence explicit evaluations, and (3) the instruction effect depends on participants' memory of which stimulus will be presented more frequently. We discuss how these findings inform us about the boundary conditions of mere exposure instruction effects, as well as the mental processes that underlie mere exposure and mere exposure instruction effects.

  12. Effect of a previous high hydrostatic pressure treatment on lipid damage in chilled Chilean jack mackerel (Trachurus murphyi

    Directory of Open Access Journals (Sweden)

    Maluenda, D.

    2013-12-01

    Full Text Available Lipid damage evolution was analyzed in chilled Chilean jack mackerel (Trachurus murphyi previously treated with high hydrostatic pressure (HHP technology. Different pressure levels and pressure holding times were tested. In addition, fish corresponding to pre- and post-rigor mortis (RM stages were comparatively studied. Previous HHP treatment led to a marked lipid hydrolysis inhibition in chilled fish. Increasing the pressure level and pressure holding time led to a lower free fatty acid content, with the effect of pressure being more relevant. According to the analysis of different types of lipid oxidation indexes, no effect of the previous HHP treatment on the lipid oxidation development could be determined in chilled jack mackerel. Concerning the effect of the RM stage of raw fish, a higher primary and secondary lipid oxidation development was observed in fish corresponding to the post-RM condition throughout the chilled storage; although a definite effect on lipid hydrolysis could not be found.Se estudió la evolución de la alteración lipídica en jurel chileno (Trachurus murphyi refrigerado previamente tratado a altas presiones hidrostáticas (HHP. Se aplicaron distintos valores de presión y tiempo de presurización; asimismo, se analizó de forma comparativa la respuesta al proceso del pescado inicial en estados pre- y post-rigor mortis (RM. El tratamiento previo por HHP produjo inhibición de la hidrólisis lipídica en pescado refrigerado, siendo más intenso el efecto de la presión que el del tiempo de presurización. De acuerdo con el análisis de distintos índices de oxidación, no se concluyó un efecto determinante sobre la oxidación lipídica por parte del tratamiento previo de HHP. En relación al efecto del estado de RM del pescado inicial, se observó una oxidación primaria y secundaria mayor en jurel correspondiente a la condición post-RM durante la conservación en refrigeración; sin embargo, no se detectó un efecto

  13. The Instructional Network: Using Facebook to Enhance Undergraduate Mathematics Instruction

    Science.gov (United States)

    Gregory, Peter; Gregory, Karen; Eddy, Erik

    2014-01-01

    Facebook is a website with over one billion users worldwide that is synonymous with social-networking. However, in this study, Facebook is used as an "instructional network". Two sections of an undergraduate calculus course were used to study the effects of participating in a Facebook group devoted solely to instruction. One section was…

  14. Improving Reading Instruction through Research-Based Instructional Strategies

    Science.gov (United States)

    Nash, Vickie Lynn

    2010-01-01

    The diverse population of students in grades 1- 3 at a suburban elementary school has created a challenge for teachers when differentiating instruction in reading. The purpose of this doctoral project study was to explore the lived experiences of these teachers as they have acquired research-based instructional strategies in reading that support…

  15. Comparative toxic effects of some xenobiotics on the germination and early seedling growth of jack pine (Pinus banksiana Lamb. ) and white birch (Betula papyrifera Marsh. )

    Energy Technology Data Exchange (ETDEWEB)

    Weinberger, P; Vladut, R

    1981-12-01

    Seeds of jack pine (Pinus banksiana Lamb.) and white birch (Betula papyrifera Marsh.) were germinated in homogeneous emulsions or aqueous tank-mix solutions of fenitrothion or Matacil and their respective adjuvants: Atlox and Aerotex, or diluent oil No. 585 and nonylphenol. Percentage and peak germination values, water uptake, sprout length, ATP content, and morphological modifications were recorded from 0 to 14 or 21 days. Apart from 100 ppm fenitrothion which stimulated germination values, germination in jack pine was only marginally affected by any of the treatments; in contrast, white birch was negatively affected by all treatments. The most sensitive parameters of toxicity were the sprout length and ATP content after 14 days growth. Aberrant hypocotyl/root length ratios were evidenced in pine seeds after exposure to xenobiotic treatments which did not affect the germinative capacity of seeds. ATP content in the 14-day-old pine and birch seedlings was consistently higher than controls in all treatment sets. (Refs. 29).

  16. The web cast of the Nobel Prize of Physics of 2008, transmitted direct from Stockholm to the Globe of Science at CERN. Followed by a discussion among CERN theorists, with the participation of Jack Steinberger and John Ellis.

    CERN Multimedia

    Claudia Marcelloni

    2008-01-01

    The web cast of the Nobel Prize of Physics of 2008, transmitted direct from Stockholm to the Globe of Science at CERN. Followed by a discussion among CERN theorists, with the participation of Jack Steinberger and John Ellis.

  17. Chemical, laboratory analyses, physical and profile oceanographic data collected aboard the JACK FITZ in the Gulf of Mexico from 2010-08-18 to 2010-08-23 in response to the Deepwater Horizon Oil Spill event (NODC Accession 0069119)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, laboratory analyses, physical and profile oceanographic data were collected aboard the JACK FITZ in the Gulf of Mexico from 2010-08-18 to 2010-08-23 in...

  18. NRDA-processed CTD data from the JACK FITZ in the Gulf of Mexico, Cruise 3 Leg 1, collected from 2010-06-12 to 2010-06-20, associated with the Deepwater Horizon Oil Spill event (NCEI Accession 0128139)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Conductivity Temperature and Depth (CTD) measurements were collected aboard the R/V Jack Fitz, Cruise 03, to determine physical oceanographic parameters of the water...

  19. NRDA-processed CTD data from the JACK FITZ in the Gulf of Mexico, Cruise 2 Leg 1, collected from 2010-05-22 to 2010-05-31, associated with the Deepwater Horizon Oil Spill event (NCEI Accession 0128138)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Conductivity Temperature and Depth (CTD) measurements were collected aboard the R/V Jack Fitz, Cruise 02, to determine physical oceanographic parameters of the water...

  20. Chemical, laboratory analyses, physical and profile oceanographic data collected aboard the JACK FITZ in the Gulf of Mexico from 2010-06-12 to 2010-06-20 in response to the Deepwater Horizon Oil Spill event (NODC Accession 0069074)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, laboratory analyses, physical and profile oceanographic data were collected aboard the JACK FITZ in the Gulf of Mexico from 2010-06-12 to 2010-06-20 in...

  1. 40 CFR 1060.130 - What installation instructions must I give to equipment manufacturers?

    Science.gov (United States)

    2010-07-01

    ... specify the requirements for the fuel cap, such as the allowable materials, thread pattern, how it must... liquid fuel. (4) Describe instructions for installing components so they will operate according to design... equivalent format. For example, you may post instructions on a publicly available Web site for downloading or...

  2. Authentic Instruction for 21st Century Learning: Higher Order Thinking in an Inclusive School

    Science.gov (United States)

    Preus, Betty

    2012-01-01

    The author studied a public junior high school identified as successfully implementing authentic instruction. Such instruction emphasizes higher order thinking, deep knowledge, substantive conversation, and value beyond school. To determine in what ways higher order thinking was fostered both for students with and without disabilities, the author…

  3. Instructional, Transformational, and Managerial Leadership and Student Achievement: High School Principals Make a Difference

    Science.gov (United States)

    Valentine, Jerry W.; Prater, Mike

    2011-01-01

    This statewide study examined the relationships between principal managerial, instructional, and transformational leadership and student achievement in public high schools. Differences in student achievement were found when schools were grouped according to principal leadership factors. Principal leadership behaviors promoting instructional and…

  4. A Study of Differentiated Instruction Based on the SIOP Model in Georgia Classrooms

    Science.gov (United States)

    Tomlinson, Sherry Marie

    2013-01-01

    This mixed methods study investigated the teachers' concerns of the sheltered instruction observation protocol (SIOP) model (Echevarria, Short and Vogt, 2008) as a means to differentiate instruction for LEP students in public school classrooms. This study took place in one central Georgia school district with a sample of 16 teachers who…

  5. Mother Tongue Instruction in Lubuagan: A Case Study from the Philippines

    Science.gov (United States)

    Walter, Stephen L.; Dekker, Diane E.

    2011-01-01

    In the modern era, the prevailing model of public education has been that of "one size fits all", with private schooling being a small but notable exception. Language (of instruction) was generally viewed as a minor variable readily overcome by standard classroom instruction. As researchers have sharpened their focus on the reasons for…

  6. Content Analysis of Research Trends in Instructional Design Models: 1999-2014

    Science.gov (United States)

    Göksu, Idris; Özcan, Kursat Volkan; Çakir, Recep; Göktas, Yuksel

    2017-01-01

    This study examines studies on instructional design models by applying content analysis. It covers 113 papers published in 44 international Social Science Citation Index (SSCI) and Science Citation Index (SCI) journals. Studies on instructional design models are explored in terms of journal of publication, preferred model, country where the study…

  7. Experimental Evaluation of Instructional Consultation Teams on Teacher Beliefs and Practices

    Science.gov (United States)

    Vu, Phuong; Shanahan, Katherine Bruckman; Rosenfield, Sylvia; Gravois, Todd; Koehler, Jessica; Kaiser, Lauren; Berger, Jill; Vaganek, Megan; Gottfredson, Gary D.; Nelson, Deborah

    2013-01-01

    Instructional Consultation Teams (IC Teams) are an early intervention service intended to support teachers in working with struggling students. This is a large-scale experimental trial investigating the effects of IC Teams on teacher efficacy, instructional practices, collaboration, and job satisfaction. Public elementary schools (N = 34) were…

  8. Effect of Music-Integrated Instruction on First Graders' Reading Fluency

    Science.gov (United States)

    Bryant, Kerry G.

    2012-01-01

    The study examined music-integrated (MI) instruction, framed by automatic information processing theory and elements of prosody. A quasi-experimental, pre- and posttest design was utilized to ascertain the effect of MI instruction on reading fluency among first grade students. Subjects were students in two public elementary schools in Georgia. To…

  9. Policy without a Plan: English as a Medium of Instruction in Rwanda

    Science.gov (United States)

    Pearson, Pamela

    2014-01-01

    From the time of Belgian colonial rule, French was predominantly the medium of instruction (MOI) in Rwanda. Then, in October 2008, a Rwandan Cabinet resolution called for the immediate implementation of English as the language of instruction in all public schools at all levels--from primary to tertiary. This study reports on ethnographic interview…

  10. Proposal for the award of a contract for the supply of motor unit for the jacks for the LHC low-beta quadrupoles

    CERN Document Server

    2005-01-01

    This document concerns the award of a contract for the supply of 134 motor units for the jacks for the LHC low-beta quadrupoles. The Finance Committee is invited to agree to the negotiation of a contract with ZTS VVU KOSICE (SK), the lowest bidder, for the supply of 134 motor units for a total amount of 1 266 674 Swiss francs, not subject to revision.

  11. Effects of soil temperature and elevated atmospheric CO2 concentration on gas exchange, in vivo carboxylation and chlorophyll fluorescence in jack pine and white birch seedlings

    International Nuclear Information System (INIS)

    Zhang, S.; Dang, Q-L.

    2005-01-01

    The interactive effects of soil temperature and elevated carbon dioxide on the photosynthetic functions of white birch and jack pine were investigated. Elevated carbon dioxide was found to significantly decrease the allocation of electron transport to photorespiration in both species by increasing electron allocation to Rubisco carboxylation. Photosynthetic down-regulation occurred in both species after four months in elevated carbon dioxide as evidenced by decreases in maximal carboxylation rate which were unaffected by soil temperature. 50 refs., 5 figs

  12. Validation of a high performance liquid chromatography method for quantitation of L-proline in 20 % tincture from Murraya paniculata L. Jack

    International Nuclear Information System (INIS)

    Varona Torres, Noel; Gutierrez Gaiten, Yamilet Irene; Casado Martin, Celia Magaly

    2014-01-01

    The search for analytical methods that may monitor the quality of drugs is an issue of great interest in the pharmaceutical field, even more if they are directed to studying chemical markers of medicinal plants, their extracts and phytomedicines. To validate a high-resolution liquid chromatography (HPLC) method for the quantitative determination of the L-proline amino acid as a marker substance in Murraya paniculata L. Jack tincture

  13. Increased air temperature during simulated autumn conditions does not increase photosynthetic carbon gain but affects the dissipation of excess energy in seedlings of the evergreen Conifer Jack Pine

    OpenAIRE

    Busch, F.; Huner, N.; Ensminger, I.

    2007-01-01

    Temperature and daylength act as environmental signals that determine the length of the growing season in boreal evergreen conifers. Climate change might affect the seasonal development of these trees, as they will experience naturally decreasing daylength during autumn, while at the same time warmer air temperature will maintain photosynthesis and respiration. We characterized the down-regulation of photosynthetic gas exchange and the mechanisms involved in the dissipation of energy in Jack ...

  14. Pervasive remagnetization of detrital zircon host rocks in the Jack Hills, Western Australia and implications for records of the early geodynamo

    Science.gov (United States)

    Weiss, Benjamin P.; Maloof, Adam C.; Tailby, Nicholas; Ramezani, Jahandar; Fu, Roger R.; Hanus, Veronica; Trail, Dustin; Bruce Watson, E.; Harrison, T. Mark; Bowring, Samuel A.; Kirschvink, Joseph L.; Swanson-Hysell, Nicholas L.; Coe, Robert S.

    2015-11-01

    It currently is unknown when Earth's dynamo magnetic field originated. Paleomagnetic studies indicate that a field with an intensity similar to that of the present day existed 3.5 billion years ago (Ga). Detrital zircon crystals found in the Jack Hills of Western Australia are some of the very few samples known to substantially predate this time. With crystallization ages ranging from 3.0-4.38 Ga, these zircons might preserve a record of the missing first billion years of Earth's magnetic field history. However, a key unknown is the age and origin of magnetization in the Jack Hills zircons. The identification of >3.9 Ga (i.e., Hadean) field records requires first establishing that the zircons have avoided remagnetization since being deposited in quartz-rich conglomerates at 2.65-3.05 Ga. To address this issue, we have conducted paleomagnetic conglomerate, baked contact, and fold tests in combination with U-Pb geochronology to establish the timing of the metamorphic and alteration events and the peak temperatures experienced by the zircon host rocks. These tests include the first conglomerate test directly on the Hadean-zircon bearing conglomerate at Erawandoo Hill. Although we observed little evidence for remagnetization by recent lightning strikes, we found that the Hadean zircon-bearing rocks and surrounding region have been pervasively remagnetized, with the final major overprinting likely due to thermal and/or aqueous effects from the emplacement of the Warakurna large igneous province at ∼1070 million years ago (Ma). Although localized regions of the Jack Hills might have escaped complete remagnetization, there currently is no robust evidence for pre-depositional (>3.0 Ga) magnetization in the Jack Hills detrital zircons.

  15. BASIC Instructional Program: System Documentation.

    Science.gov (United States)

    Dageforde, Mary L.

    This report documents the BASIC Instructional Program (BIP), a "hands-on laboratory" that teaches elementary programming in the BASIC language, as implemented in the MAINSAIL language, a machine-independent revision of SAIL which should facilitate implementation of BIP on other computing systems. Eight instructional modules which make up…

  16. Designing Instructional Materials: Some Guidelines.

    Science.gov (United States)

    Burbank, Lucille; Pett, Dennis

    Guidelines for the design of instructional materials are outlined in this paper. The principles of design are presented in five major categories: (1) general design (structural appeal and personal appeal); (2) instructional design (attention, memory, concept learning, and attitude change); (3) visual design (media considerations, pictures, graphs…

  17. Cognitive Approaches to Automated Instruction.

    Science.gov (United States)

    Regian, J. Wesley, Ed.; Shute, Valerie J., Ed.

    This book contains a snapshot of state-of-the-art research on the design of automated instructional systems. Selected cognitive psychologists were asked to describe their approach to instruction and cognitive diagnosis, the theoretical basis of the approach, its utility and applicability, and the knowledge engineering or task analysis methods…

  18. Physics Instruction for Radiologic Technologists

    Science.gov (United States)

    Chaney, Edward L.; And Others

    1974-01-01

    Discusses the Denver collaborative training program in radiologic technology with emphasis upon identification of core topics, preparation of quality instructional materials, and use of innovative teaching techniques, such as computer-assisted instruction and video tape presentations. Included is a 10-week course outline. (CC)

  19. Active Learning through Online Instruction

    Science.gov (United States)

    Gulbahar, Yasemin; Kalelioglu, Filiz

    2010-01-01

    This article explores the use of proper instructional techniques in online discussions that lead to meaningful learning. The research study looks at the effective use of two instructional techniques within online environments, based on qualitative measures. "Brainstorming" and "Six Thinking Hats" were selected and implemented…

  20. Adaptive instruction and pupil achievement

    NARCIS (Netherlands)

    Houtveen, A.A M; Booy, N; de Jong, Robert (Rob); van de Grift, W.J C M

    In this article the results are reported of a quasi-experiment on effects of adaptive instruction on reading results of children in the first year of reading instruction in Dutch primary schools. The research involved 456 pupils from 23 schools (12 experimental and 11 control group schools).

  1. Instructional Theory for Teaching Statistics.

    Science.gov (United States)

    Atwood, Jan R.; Dinham, Sarah M.

    Metatheoretical analysis of Ausubel's Theory of Meaningful Verbal Learning and Gagne's Theory of Instruction using the Dickoff and James paradigm produced two instructional systems for basic statistics. The systems were tested with a pretest-posttest control group design utilizing students enrolled in an introductory-level graduate statistics…

  2. Unaligned instruction relocation

    Energy Technology Data Exchange (ETDEWEB)

    Bertolli, Carlo; O' Brien, John K.; Sallenave, Olivier H.; Sura, Zehra N.

    2017-10-17

    In one embodiment, a computer-implemented method includes receiving source code to be compiled into an executable file for an unaligned instruction set architecture (ISA). Aligned assembled code is generated, by a computer processor. The aligned assembled code complies with an aligned ISA and includes aligned processor code for a processor and aligned accelerator code for an accelerator. A first linking pass is performed on the aligned assembled code, including relocating a first relocation target in the aligned accelerator code that refers to a first object outside the aligned accelerator code. Unaligned assembled code is generated in accordance with the unaligned ISA and includes unaligned accelerator code for the accelerator and unaligned processor code for the processor. A second linking pass is performed on the unaligned assembled code, including relocating a second relocation target outside the unaligned accelerator code that refers to an object in the unaligned accelerator code.

  3. Unaligned instruction relocation

    Science.gov (United States)

    Bertolli, Carlo; O'Brien, John K.; Sallenave, Olivier H.; Sura, Zehra N.

    2018-01-23

    In one embodiment, a computer-implemented method includes receiving source code to be compiled into an executable file for an unaligned instruction set architecture (ISA). Aligned assembled code is generated, by a computer processor. The aligned assembled code complies with an aligned ISA and includes aligned processor code for a processor and aligned accelerator code for an accelerator. A first linking pass is performed on the aligned assembled code, including relocating a first relocation target in the aligned accelerator code that refers to a first object outside the aligned accelerator code. Unaligned assembled code is generated in accordance with the unaligned ISA and includes unaligned accelerator code for the accelerator and unaligned processor code for the processor. A second linking pass is performed on the unaligned assembled code, including relocating a second relocation target outside the unaligned accelerator code that refers to an object in the unaligned accelerator code.

  4. X-ray diffraction, XAFS and scanning electron microscopy study of otolith of a crevalle jack fish (caranx hippos)

    Energy Technology Data Exchange (ETDEWEB)

    Pattanaik, Sidhartha [Bailey Hall 703, Illinois Institute of Technology, 3101 S. Wabash Avenue, Chicago, IL 60616 (United States)]. E-mail: sidpattanaik@yahoo.com

    2005-04-01

    The otolith of a crevalle jack fish (caranx hippos) has been investigated by means of X-ray diffraction, X-ray absorption fine structure spectroscopy and scanning electron microscopy techniques. The results suggest that the biomineralization of otolith occurs predominantly in the aragonite phase. A detailed X-ray Rietveld analysis showed that the first shell Ca-O distances in otolith lay in the range 2.371-2.652 A, with each calcium atom coordinated to 9 oxygen atoms. While the average Ca-O distance remains same in both otolith and aragonite, certain Ca-O distances in otolith differ markedly from those in aragonite. Such difference reflects the remarkable degree of control that the protein matrix exercised over packing of calcium and carbonate ions to promote growth of rarer aragonite otolith. In view of the complex coordination chemistry of calcium in otoliths, the EXAFS analysis was limited to obtaining local atomic environment about calcium up to the first Ca-O shell. EXAFS data showed an asymmetric distribution of Ca-O bond distances with the centroid of distribution at 2.48 A, which is closer to the average Ca-O distance in aragonite than in calcite. The asymmetry in the Ca-O peak is consistent with an apparent departure of Ca-O distances from a near regular distribution, as expected of an aragonite otolith.

  5. X-ray diffraction, XAFS and scanning electron microscopy study of otolith of a crevalle jack fish (caranx hippos)

    International Nuclear Information System (INIS)

    Pattanaik, Sidhartha

    2005-01-01

    The otolith of a crevalle jack fish (caranx hippos) has been investigated by means of X-ray diffraction, X-ray absorption fine structure spectroscopy and scanning electron microscopy techniques. The results suggest that the biomineralization of otolith occurs predominantly in the aragonite phase. A detailed X-ray Rietveld analysis showed that the first shell Ca-O distances in otolith lay in the range 2.371-2.652 A, with each calcium atom coordinated to 9 oxygen atoms. While the average Ca-O distance remains same in both otolith and aragonite, certain Ca-O distances in otolith differ markedly from those in aragonite. Such difference reflects the remarkable degree of control that the protein matrix exercised over packing of calcium and carbonate ions to promote growth of rarer aragonite otolith. In view of the complex coordination chemistry of calcium in otoliths, the EXAFS analysis was limited to obtaining local atomic environment about calcium up to the first Ca-O shell. EXAFS data showed an asymmetric distribution of Ca-O bond distances with the centroid of distribution at 2.48 A, which is closer to the average Ca-O distance in aragonite than in calcite. The asymmetry in the Ca-O peak is consistent with an apparent departure of Ca-O distances from a near regular distribution, as expected of an aragonite otolith

  6. Conformational change results in loss of enzymatic activity of jack bean urease on its interaction with silver nanoparticle.

    Science.gov (United States)

    Ponnuvel, Shobana; Subramanian, Balakumar; Ponnuraj, Karthe

    2015-10-01

    Urease is an enzyme produced by microbes such as bacteria, yeast and fungi. Plants also produce this enzyme. Urease action splits urea into ammonia and carbamate. This action is having important implications in agro-chemical, medicinal and environment. Therefore there is always a constant search for new and novel compounds which could inhibit this enzyme. Here we have studied the interaction of jack bean urease (JBU) with silver nanoparticle to analyze the influence of the resultant protein corona formation on the catalytic property of JBU. Several techniques like UV-Vis, gel shift assay and CD spectroscopy have been used to characterize this interaction. Urease activity assay suggests that the protein corona formation inhibits the enzymatic action of JBU. The loss of enzymatic action could be either due to the nanoparticle blocking the active site of JBU or a conformational change in the protein. The CD spectra of JBU-AgNP complexes clearly revealed significant changes in the secondary structural composition of the JBU and this could be the reason for the loss of enzymatic activity of JBU. This study revealed an interesting observation, where the interaction of AgNP with JBU resulted destabilization of hexameric nature of JBU which is otherwise highly stable. The results of the present study could be useful in the development of nanoparticle based material for inhibiting the ureolytic activity of ureases in different fields.

  7. Tree rings provide early warning signals of jack pine mortality across a moisture gradient in the southern boreal forest

    Science.gov (United States)

    Mamet, S. D.; Chun, K. P.; Metsaranta, J. M.; Barr, A. G.; Johnstone, J. F.

    2015-08-01

    Recent declines in productivity and tree survival have been widely observed in boreal forests. We used early warning signals (EWS) in tree ring data to anticipate premature mortality in jack pine (Pinus banksiana)—an extensive and dominant species occurring across the moisture-limited southern boreal forest in North America. We sampled tree rings from 113 living and 84 dead trees in three soil moisture regimes (subxeric, submesic, subhygric) in central Saskatchewan, Canada. We reconstructed annual increments of tree basal area to investigate (1) whether we could detect EWS related to mortality of individual trees, and (2) how water availability and tree growth history may explain the mortality warning signs. EWS were evident as punctuated changes in growth patterns prior to transition to an alternative state of reduced growth before dying. This transition was likely triggered by a combination of severe drought and insect outbreak. Higher moisture availability associated with a soil moisture gradient did not appear to reduce tree sensitivity to stress-induced mortality. Our results suggest tree rings offer considerable potential for detecting critical transitions in tree growth, which are linked to premature mortality.

  8. Total flavonoid content and antioxidant activity in leaves and stems extract of cultivated and wild tabat barito (Ficus deltoidea Jack)

    Science.gov (United States)

    Manurung, Hetty; Kustiawan, Wawan; Kusuma, Irawan W.; Marjenah

    2017-02-01

    Tabat barito (Ficus deltoidea Jack) is a name given by Dayak Tribe who lived in Borneo-Kalimantan and it is belongs to the moraceae. Almost all of the parts of F. deltoidea plant is widely used as a medicinal property. The total flavonoid content (TFC) and antioxidant activity from cultivated and wild F. deltoidea leaves and stems extract were assessed. Total flavonoid content was estimated by using Aluminium chloride colorimetric method and expressed as catechin equivalents (mg CE g-1 extract) and the antioxidant activity by the DPPH (2,2-diphenyl-1-picryl hydrazyl) method. The content of total flavonoid of leaves and stems (430.77 and 371.80 µg CE mg-1 extract) of cultivated F. deltoidea were higher than in the wild leaves and stems (114.82 and 66.67 µg CE mg-1 extract). The IC50 of leaves extract of cultivated and wild F. deltoidea, based on the DPPH assay, has a strong antioxidant activity (34.19 and 39.31 µg mL-1 extract) as compared to stems extract. These results showed that the cultivated F. deltoidea are suitable source for medicinal properties and the leaves could be exploited as source of natural antioxidants.

  9. Comparison of Method for the Simultaneous Analysis of Bioactive for the Eurycoma longifolia jack using different Analysis Methods

    International Nuclear Information System (INIS)

    Salmah Moosa; Sobri Hussein; Rusli Ibrahim; Maizatul Akmam Md Nasir

    2011-01-01

    Eurycoma longifolia jack (Tongkat Ali, Genus: Eurycoma; Family, Simaroubaceae) is one of the most popular tropical herbal plants. The plant contains a series of quassinoids, which are mainly responsible for its bitter taste. The plant extract, especially roots, are exclusively used (traditionally) for enhancing testosterone levels in men. The roots also have been used in indigenous traditional medicines for its unique anti-malarial, anti-pyretic, antiulcer, cytotoxic and aphrodisiac properties. As part of an on-going research on the bioactive compound of Eurycoma longifolia and evaluation for an optimized analysis method and parameter that influence in LC-MS analysis were carried out. Identification of the bioactive compounds was based on comparison of calculated retention time and mass spectral data with literature values. Examination of the Eurycoma longifolia sample showed some variations and differences in terms of parameters in LC-MS. However, combined method using methanol as the solvent with injection volume 1.0 μL and analysis in ultra scan mode and acetic acid as acidic modifier is the optimum method for LCMS analysis of Eurycoma longifolia because it successfully detected the optimum mass of compounds with good resolution and perfectly separated within a short analysis time. (author)

  10. Soil respiration and photosynthetic uptake of carbon dioxide by ground-cover plants in four ages of jack pine forest

    Science.gov (United States)

    Striegl, Robert G.; Wickland, K.P.

    2001-01-01

    Soil carbon dioxide (CO2) emission (soil respiration), net CO2 exchange after photosynthetic uptake by ground-cover plants, and soil CO2 concentration versus depth below land surface were measured at four ages of jack pine (Pinus banksiana Lamb.) forest in central Saskatchewan. Soil respiration was smallest at a clear-cut site, largest in an 8-year-old stand, and decreased with stand age in 20-year-old and mature (60-75 years old) stands during May-September 1994 (12.1, 34.6, 31.5, and 24.9 mol C??m-2, respectively). Simulations of soil respiration at each stand based on continuously recorded soil temperature were within one standard deviation of measured flux for 48 of 52 measurement periods, but were 10%-30% less than linear interpolations of measured flux for the season. This was probably due to decreased soil respiration at night modeled by the temperature-flux relationships, but not documented by daytime chamber measurements. CO2 uptake by ground-cover plants ranged from 0 at the clear-cut site to 29, 25, and 9% of total growing season soil respiration at the 8-year, 20-year, and mature stands. CO2 concentrations were as great as 7150 ppmv in the upper 1 m of unsaturated zone and were proportional to measured soil respiration.

  11. Interactive Instruction in Bayesian Inference

    DEFF Research Database (Denmark)

    Khan, Azam; Breslav, Simon; Hornbæk, Kasper

    2018-01-01

    An instructional approach is presented to improve human performance in solving Bayesian inference problems. Starting from the original text of the classic Mammography Problem, the textual expression is modified and visualizations are added according to Mayer’s principles of instruction. These pri......An instructional approach is presented to improve human performance in solving Bayesian inference problems. Starting from the original text of the classic Mammography Problem, the textual expression is modified and visualizations are added according to Mayer’s principles of instruction....... These principles concern coherence, personalization, signaling, segmenting, multimedia, spatial contiguity, and pretraining. Principles of self-explanation and interactivity are also applied. Four experiments on the Mammography Problem showed that these principles help participants answer the questions...... that an instructional approach to improving human performance in Bayesian inference is a promising direction....

  12. The influence of instructional materials on mathematics achievement ...

    African Journals Online (AJOL)

    The influence of instructional materials on mathematics achievement of senior secondary students in Akamkpa Local Government Area of Cross River State, ... the ten public secondary schools in Akamkpa Local Government Area by stratified random technique, and two (2) Mathematics teachers per school for the study.

  13. Teaching for Diversity: Addressing Diversity Issues in Responsive ESL Instruction

    Science.gov (United States)

    Fu, Jing

    2013-01-01

    Student diversity has become a typical phenomenon in American public schools. The impact of increasing diversity on literacy instruction is unchallenged. Teachers reinforce this message by often citing ESL student diversity as a barrier for literacy teaching. In order to better understand the complexity of diversity issues, I explored two ESL…

  14. Educating Instructional Designers: Different Methods for Different Outcomes.

    Science.gov (United States)

    Rowland, Gordon; And Others

    1994-01-01

    Suggests new methods of teaching instructional design based on literature reviews of other design fields including engineering, architecture, interior design, media design, and medicine. Methods discussed include public presentations, visiting experts, competitions, artifacts, case studies, design studios, and internships and apprenticeships.…

  15. Instructional Television: A Research Review and Status Report.

    Science.gov (United States)

    Whittington, Nil

    In January 1985, the Coordinating Board of the Texas College and University System adopted rules and regulations to cover the offering of televised instruction by public institutions of higher education. An executive summary explains the rationale of this report, provides the major findings of a literature review, and compares data on enrollments…

  16. Effects of Direct and Indirect Instructional Strategies on Students ...

    African Journals Online (AJOL)

    This is a quasi experimental research designed to determine the effects of Direct and Indirect instructional strategies on Mathematics achievement among junior secondary school students. The population consisted of students in a Public Secondary School in Owerri, Imo State. A sample of 102 students from two (2) intact ...

  17. Masonry. Teacher's Guide. Building Maintenance Units of Instruction.

    Science.gov (United States)

    Barnes, Bill

    This teaching guide on masonry building maintenance, one in a series of six publications designed for building maintenance instructors in Texas, is designed to give students an understanding of masonry construction. Introductory material provides teachers with information on use of the units of instruction and personalization and localization of…

  18. Building Maintenance: Introduction. Units of Instruction. Teacher's Guide. First Edition.

    Science.gov (United States)

    Barnes, Bill

    This volume, the first in a series of publications that will provide entry-level competencies in the area of building maintenance, is designed as an introduction. The seven instructional units cover these areas in the shop program: (1) introduction to building maintenance, (2) leadership development, (3) personal development, (4) job application…

  19. Norming of Student Evaluations of Instruction: Impact of Noninstructional Factors

    Science.gov (United States)

    Nargundkar, Satish; Shrikhande, Milind

    2014-01-01

    Student Evaluations of Instruction (SEIs) from about 6,000 sections over 4 years representing over 100,000 students at the college of business at a large public university are analyzed, to study the impact of noninstructional factors on student ratings. Administrative factors like semester, time of day, location, and instructor attributes like…

  20. ARS-Media for excel instruction manual

    Science.gov (United States)

    ARS-Media for Excel Instruction Manual is the instruction manual that explains how to use the Excel spreadsheet ARS-Media for Excel application. ARS-Media for Excel Instruction Manual is provided as a pdf file....

  1. Publicity and public relations

    Science.gov (United States)

    Fosha, Charles E.

    1990-01-01

    This paper addresses approaches to using publicity and public relations to meet the goals of the NASA Space Grant College. Methods universities and colleges can use to publicize space activities are presented.

  2. A multimedia adult literacy program: Combining NASA technology, instructional design theory, and authentic literacy concepts

    Science.gov (United States)

    Willis, Jerry W.

    1993-01-01

    For a number of years, the Software Technology Branch of the Information Systems Directorate has been involved in the application of cutting edge hardware and software technologies to instructional tasks related to NASA projects. The branch has developed intelligent computer aided training shells, instructional applications of virtual reality and multimedia, and computer-based instructional packages that use fuzzy logic for both instructional and diagnostic decision making. One outcome of the work on space-related technology-supported instruction has been the creation of a significant pool of human talent in the branch with current expertise on the cutting edges of instructional technologies. When the human talent is combined with advanced technologies for graphics, sound, video, CD-ROM, and high speed computing, the result is a powerful research and development group that both contributes to the applied foundations of instructional technology and creates effective instructional packages that take advantage of a range of advanced technologies. Several branch projects are currently underway that combine NASA-developed expertise to significant instructional problems in public education. The branch, for example, has developed intelligent computer aided software to help high school students learn physics and staff are currently working on a project to produce educational software for young children with language deficits. This report deals with another project, the adult literacy tutor. Unfortunately, while there are a number of computer-based instructional packages available for adult literacy instruction, most of them are based on the same instructional models that failed these students when they were in school. The teacher-centered, discrete skill and drill-oriented, instructional strategies, even when they are supported by color computer graphics and animation, that form the foundation for most of the computer-based literacy packages currently on the market may not

  3. Detrital Zircons From the Jack Hills and Mount Narryer, Western Australia: Geochronological, Morphological, and Geochemical Evidence for Diverse >4000 Ma Source Rocks

    Science.gov (United States)

    Crowley, J. L.; Myers, J. S.; Sylvester, P. J.; Cox, R. A.

    2004-05-01

    Detrital zircons from all major clastic units in the Jack Hills and Mount Narryer metasedimentary belts, Western Australia, were analyzed for morphology, internal zoning, inclusion mineralogy, age, and trace element concentrations (latter two obtained by laser-ablation microprobe ICPMS). The results show that zircons were derived from a wide diversity of rocks, including previously described, >4000 Ma grains that are older than any known terrestrial rocks. In three metaconglomerate samples from the western Jack Hills, 4200-3800 Ma zircons ("old grains") comprise 14% of the population, 3800-3600 Ma grains form only 2%, and 3550-3250 Ma zircons ("young grains") are dominant with a significant peak at 3380 Ma. Old and young grains are interpreted as being from similar rock types because they are indistinguishable in trace element concentrations, size (several hundred microns), morphology (subequant, typically fragmented), internal zoning (typically both oscillatory and sector), and U concentration (50-200 ppm). Many of these properties suggest an intermediate plutonic source, whereas an evolved granitic source was previously interpreted from rare-earth element and oxygen isotope data. Detrital zircons in quartzites and metaconglomerates at Mount Narryer differ significantly from zircons from the western Jack Hills. Old grains comprise only 3% (most of which are 4200-4100 Ma), 3800-3600 Ma zircons form 31%, and there are peaks at 3650, 3600, and 3500 Ma. Old and young grains have similar properties that suggest granitic sources, such as elongate prismatic morphology, oscillatory zoning, high U concentrations (100-600 ppm), and xenotime and monazite inclusions. Trace element concentrations are broadly similar to those in Jack Hills zircons, with notable exceptions being generally higher U, smaller Ce and Eu anomalies, and lower Nb/Ta. It is considered unlikely that Jack Hills zircons were derived from granitic gneisses that surround the metasedimentary belts because

  4. Instructed officers Radiation Protection

    International Nuclear Information System (INIS)

    2007-01-01

    This law contains instructions on the prevention of radiological and contains 4 articles Article I: describe the responsibilities of the institutions that operate within the scope of radiological protection in terms of the number of radiation protection officers and personal Supervisors who available in the practices radiation field. Article II: talking about the conditions of radiation protection officers that must be available in the main officers and working field in larg institutions and thecondition of specific requirements for large enterprises of work permits in the field of radiological work that issued by the Council. Article III: the functions and duties of officers in the prevention of radiological oversee the development of radiation protection programmes in the planning stages, construction and preparing the rules of local labour and what it lead of such tasks.Article IV: radiation protection officers powers: to modify and approve the programme of prevention and radiation safety at the company, stop any unsafe steps, amend the steps of the usage, operation of materials, devices and so on

  5. Composition and Antibacterial Activity of the Essential Oils of Orthosiphon stamineus Benth and Ficus deltoidea Jack against Pathogenic Oral Bacteria

    Directory of Open Access Journals (Sweden)

    Nuramirah Azizan

    2017-12-01

    Full Text Available In this study, the essential oils of Orthosiphon stamineus Benth and Ficus deltoidea Jack were evaluated for their antibacterial activity against invasive oral pathogens, namely Enterococcus faecalis, Streptococcus mutans, Streptococcus mitis, Streptococcus salivarius, Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis and Fusobacterium nucleatum. Chemical composition of the oils was analyzed using gas chromatography (GC and gas chromatography-mass spectrometry (GC-MS. The antibacterial activity of the oils and their major constituents were investigated using the broth microdilution method (minimal inhibitory concentration (MIC and minimal bactericidal concentration (MBC. Susceptibility test, anti-adhesion, anti-biofilm, checkerboard and time-kill assays were also carried out. Physiological changes of the bacterial cells after exposure to the oils were observed under the field emission scanning electron microscope (FESEM. O. stamineus and F. deltoidea oils mainly consisted of sesquiterpenoids (44.6% and 60.9%, respectively, and β-caryophyllene was the most abundant compound in both oils (26.3% and 36.3%, respectively. Other compounds present in O. stamineus were α-humulene (5.1% and eugenol (8.1%, while α-humulene (5.5% and germacrene D (7.7% were dominant in F. deltoidea. The oils of both plants showed moderate to strong inhibition against all tested bacteria with MIC and MBC values ranging 0.63–2.5 mg/mL. However, none showed any inhibition on monospecies biofilms. The time-kill assay showed that combination of both oils with amoxicillin at concentrations of 1× and 2× MIC values demonstrated additive antibacterial effect. The FESEM study showed that both oils produced significant alterations on the cells of Gram-negative bacteria as they became pleomorphic and lysed. In conclusion, the study indicated that the oils of O. stamineus and F. deltoidea possessed moderate to strong antibacterial properties against the seven

  6. Composition and Antibacterial Activity of the Essential Oils of Orthosiphon stamineus Benth and Ficus deltoidea Jack against Pathogenic Oral Bacteria.

    Science.gov (United States)

    Azizan, Nuramirah; Mohd Said, Shahida; Zainal Abidin, Zamirah; Jantan, Ibrahim

    2017-12-05

    In this study, the essential oils of Orthosiphon stamineus Benth and Ficus deltoidea Jack were evaluated for their antibacterial activity against invasive oral pathogens, namely Enterococcus faecalis , Streptococcus mutans , Streptococcus mitis , Streptococcus salivarius , Aggregatibacter actinomycetemcomitans , Porphyromonas gingivalis and Fusobacterium nucleatum . Chemical composition of the oils was analyzed using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The antibacterial activity of the oils and their major constituents were investigated using the broth microdilution method (minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC)). Susceptibility test, anti-adhesion, anti-biofilm, checkerboard and time-kill assays were also carried out. Physiological changes of the bacterial cells after exposure to the oils were observed under the field emission scanning electron microscope (FESEM). O. stamineus and F. deltoidea oils mainly consisted of sesquiterpenoids (44.6% and 60.9%, respectively), and β-caryophyllene was the most abundant compound in both oils (26.3% and 36.3%, respectively). Other compounds present in O. stamineus were α-humulene (5.1%) and eugenol (8.1%), while α-humulene (5.5%) and germacrene D (7.7%) were dominant in F. deltoidea . The oils of both plants showed moderate to strong inhibition against all tested bacteria with MIC and MBC values ranging 0.63-2.5 mg/mL. However, none showed any inhibition on monospecies biofilms. The time-kill assay showed that combination of both oils with amoxicillin at concentrations of 1× and 2× MIC values demonstrated additive antibacterial effect. The FESEM study showed that both oils produced significant alterations on the cells of Gram-negative bacteria as they became pleomorphic and lysed. In conclusion, the study indicated that the oils of O. stamineus and F. deltoidea possessed moderate to strong antibacterial properties against the seven strains

  7. Influences of vegetation structure and elevation on CO2 uptake in a mature jack pine forest in Saskatchewan, Canada

    International Nuclear Information System (INIS)

    Chasmer, L.; McCaughey, H.; Treitz, P.

    2008-01-01

    Eddy covariance (EC) is often used to measure the movement and direction of energy and trace gas concentrations in ecosystems. Data from EC networks are often combined with remote sensing data and ecosystem models in order to assess the spatial and temporal variability of carbon dioxide (CO 2 ) exchanges within specific areas of interest. This study presented a new method of determining changes in the structural characteristics of biomass and elevation. Lidar was used within the contours of half-hourly flux footprint areas to characterize vegetation structure and elevation. The influences of vegetation structure and elevation on CO 2 concentrations were measured by EC and Lidar measurements for 3 mature growing periods at a mature jack pine site in Saskatchewan. Mensuration data were collected over 2 periods. Meteorological, CO 2 , and H2O flux measurements were collected for 30 minute periods each day. Statistical analyses were conducted to determine the influence of meteorological variables on vegetation structure. Footprint contour lines were then layered onto the canopy height models derived by the lidar data. Multiple regression equations were used to determine net ecosystem productivity (NEP) and gross ecosystem productivity (GEP) using meteorological variables, canopy fractional cover; and elevation, as well as the results obtained from a Landsberg equation. The study showed that differences in NEP variability were influenced by differences in canopy and ground surface characteristics within the site. EC measurements underestimated gross CO 2 fluxes by 5 per cent as the biomass was lower within the immediate vicinity of the EC network. It was concluded that canopy structures and elevation are important factors for determining annual carbon balances. 36 refs., 8 tabs., 9 figs

  8. Motivational Measure of the Instruction Compared: Instruction Based on the ARCS Motivation Theory vs Traditional Instruction in Blended Courses

    Science.gov (United States)

    Colakoglu, Ozgur M.; Akdemir, Omur

    2012-01-01

    The ARCS Motivation Theory was proposed to guide instructional designers and teachers who develop their own instruction to integrate motivational design strategies into the instruction. There is a lack of literature supporting the idea that instruction for blended courses if designed based on the ARCS Motivation Theory provides different…

  9. L-032: EPR-First responders: Guidelines for public protection

    International Nuclear Information System (INIS)

    2011-01-01

    This conference is about the guidelines to public protection in a radiological emergency. The responsible for promoting clear instructions will be the commander of incident directed to the public inside and outside of the security cordon.

  10. Zoology by Self-Instruction

    Science.gov (United States)

    Roach, Keith; Hammond, Roger

    1976-01-01

    A historical account is given of how a conventional university first-year undergraduate course in zoology has been replaced by a self-instructional one. Advantages and problems are weighed, and successful student achievement and interest are described. (LBH)

  11. A Fallibilistic Model for Instruction

    Science.gov (United States)

    Dawson, A. J.

    1971-01-01

    Discusses models in inquiry and of instruction based on critical Fallibilistic philosophy, developed by Karl R. Popper, which holds that all knowledge grows by conjecture and refutation. Classroom applications of strategies which result from the model are presented. (JP)

  12. Instructional Style Meets Classroom Design.

    Science.gov (United States)

    Novelli, Joan

    1991-01-01

    Nine elementary teachers explain how they design their classrooms to match and support their instructional styles. The teachers focus on whole language programs, student portfolios, science activity set-ups, technology transformation, learning center strategies, and space utilization. (SM)

  13. Intelligent Tools and Instructional Simulations

    National Research Council Canada - National Science Library

    Murray, William R; Sams, Michelle; Belleville, Michael

    2001-01-01

    This intelligent tools and instructional simulations project was an investigation into the utility of a knowledge-based performance support system to support learning and on-task performance for using...

  14. Measurement control workshop instructional materials

    Energy Technology Data Exchange (ETDEWEB)

    Gibbs, Philip [Brookhaven National Lab. (BNL), Upton, NY (United States); Crawford, Cary [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); McGinnis, Brent [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Insolves LLC, Piketon, OH (United States)

    2014-04-01

    A workshop to teach the essential elements of an effective nuclear materials control and accountability (MC&A) programs are outlined, along with the modes of Instruction, and the roles and responsibilities of participants in the workshop.

  15. Measurement Control Workshop Instructional Materials

    International Nuclear Information System (INIS)

    Gibbs, Philip; Crawford, Cary; McGinnis, Brent

    2014-01-01

    A workshop to teach the essential elements of an effective nuclear materials control and accountability (MC&A) programs are outlined, along with the modes of Instruction, and the roles and responsibilities of participants in the workshop.

  16. Adaptive Explicitly Parallel Instruction Computing

    National Research Council Canada - National Science Library

    Talla, Surendranath

    2000-01-01

    .... With in this context, we ask ourselves the following questions. 1. Can application performance be improved if the compiler had the freedom to pick the instruction set on a per application basis? 2...

  17. Rating Instructional Conversations: A Guide

    OpenAIRE

    Rueda, Robert; Goldenberg, Claude; Gallimore, Ronald

    1992-01-01

    The current focus on more effective ways to foster literacy in school-age children, especially language minority students, has led to the development of alternative instructional approaches. One such approach is the instructional conversation (IC), based on early work in the Hawaiian Kamehameha Elementary Education Project (KEEP), on neo-Vygotskian theory, and on recent classroom-based research on reading comprehension. The present report outlines preliminary efforts to operationaliz...

  18. PLE-based instruction concept

    Science.gov (United States)

    Javorcik, Tomas

    2017-11-01

    The paper is aimed at the description of a PLE (Personal Learning Environment)-based teaching model suitable for implementation in the instruction of upper primary school students. The paper describes the individual stages of the model and its use of ICT (Information and Communication Technologies) tools. The Personal Learning Environment is a form of instruction which allows for the meaningful use of information and communication technologies (including mobile technologies) in their entirety.

  19. Tritium control and accountability instructions

    International Nuclear Information System (INIS)

    Wall, W.R.; Cruz, S.L.

    1985-08-01

    This instruction describes the tritium accountability procedures practiced by the Tritium Research Laboratory, at Sandia National Laboratories, Livermore. The accountability procedures are based upon the Sandia National Laboratories, Livermore, Nuclear Materials Operations Manual, SAND83-8036. The Nuclear Materials Operations Manual describes accountability techniques which are in compliance with the Department of Energy 5630 series Orders, Code of Federal Regulations, and Sandia National Laboratories Instructions

  20. Tritium control and accountability instructions

    International Nuclear Information System (INIS)

    Wall, W.R.

    1981-03-01

    This instruction describes the tritium accountability procedures practiced by the Tritium Research Laboratory, Building 968 at Sandia National Laboratories, Livermore. The accountability procedures are based upon the Sandia National Laboratories, Livermore, Nuclear Materials Operations Manual, SAND78-8018. The Nuclear Materials Operations Manual describes accountability techniques which are in compliance with the Department of Energy Manual, Code of Federal Regulations, and Sandia National Laboratories Instructions

  1. Instructional Technology and Objectification

    Directory of Open Access Journals (Sweden)

    Bekir S. Gur

    2008-05-01

    Full Text Available Objectification refers to the way in which everything (including human beings is treated as an object, raw material, or resource to be manipulated and used. In this article, objectification refers to the way that education is often reduced to the packaging and delivery of information. A critique of objectification in instructional technology is presented. In the context of Heidegger’s critique of technology, the authors claim that objectification in education is metaphysical in the sense that the intelligibility (being of education is equated with ready-to-use packages, and thus is reduced to delivery and transmission of objects. The embodiment dimension of teaching and learning can help us in resisting this reduction. The authors argue that objectification increases bureaucratic control over the teaching process and deskills teachers; and by which teachers are proletarianized. The authors conclude that instructional designers should create structures in which a care relation and dialogue between students and teachers can take place. Résumé: L’objectification réfère à la façon dont tout (incluant les être humains est traité comme un objet, une matière première ou une ressource qui peut être manipulée et utilisée. Dans cet article, l’objectification réfère à la façon dont l’éducation est souvent réduite à la mise en boîte et à la livraison de l’information. Une critique de l’objectification en technologie éducative est présentée. Dans le contexte de la critique de la technologie par Heidegger, les auteurs prétendent que l’objectification en éducation est métaphysique dans le sens que l’intelligibilité (être de l’éducation équivaut à la mise en boîte prêt-à –utiliser, et se résume donc à la livraison et à la transmission d’objets. L’incarnation de l’enseignement et de l’apprentissage peuvent nous aider à résister à cette réduction. Les auteurs arguent que l

  2. Intelligent Instructional Systems in Military Training.

    Science.gov (United States)

    Fletcher, J.D.; Zdybel, Frank

    Intelligent instructional systems can be distinguished from more conventional approaches by the automation of instructional interaction and choice of strategy. This approach promises to reduce the costs of instructional materials preparation and to increase the adaptability and individualization of the instruction delivered. Tutorial simulation…

  3. Lifelong learning in public libraries principles, programs, and people

    CERN Document Server

    Gilton, Donna L

    2012-01-01

    Lifelong Learning in Public Libraries demonstrates that public librarians can promote learning by combining the elements of Information Literacy Instruction (ILI) with traditional practices of public libraries. This approach contributes to the information enfranchisement of patrons and enhances the fulfillment of the traditional goals and purposes of libraries. Donna L. Gilton provides background on ILI and current developments in public library instruction and also examines educational the

  4. Proterozoic events recorded in quartzite cobbles at Jack Hills, Western Australia: New constraints on sedimentation and source of > 4 Ga zircons

    Science.gov (United States)

    Grange, Marion L.; Wilde, Simon A.; Nemchin, Alexander A.; Pidgeon, Robert T.

    2010-03-01

    Rare heavy mineral bands within quartzite cobbles were identified in two conglomerate units within the Jack Hills belt, Western Australia. Seven zircon-bearing cobbles were analysed from one location (site 152) and three from another (site 154), both approximately 1 km west of the site where zircons in excess of 4 Ga are abundant (W74 'discovery' site). Individual pebbles from the 152 site reveal three distinctive features, containing either zircons > 3.0 Ga in age, 4 Ga was discovered from the entire suite of pebbles, in contrast to the well-studied W74 site. A single detrital zircon with an age of 1220 ± 42 Ma from location 152 is the youngest grain so far reported from sedimentary rocks at Jack Hills. It shows magmatic oscillatory zoning and thus implies at least two sedimentary cycles within the Proterozoic; requiring erosion of an igneous precursor, incorporation into a clastic sediment, induration and subsequent erosion and transport to be hosted in the conglomerate. The nearest source for rocks of this age is the Bangemall Supergroup in the Collier Basin, ˜ 100 km northeast in the Capricorn Orogen. This would imply tectonic interleaving of originally more extensive Bangemall rocks, possibly related to activity along the Cargarah Shear Zone that traverses the Jack Hills belt. The lack of > 4.1 Ga zircons in the pebbles is highly significant, suggesting the immediate source of ancient zircons was no longer present at the Earth's surface. This equates with a general lack of ancient crystals noted in rocks that contain Proterozoic zircons from previous studies and implies that such grains diminish in number as earlier sedimentary rocks were successively recycled.

  5. Analysis of ITER NbTi and Nb3Sn CICCs experimental minimum quench energy with JackPot, MCM and THEA models

    Science.gov (United States)

    Bagni, T.; Duchateau, J. L.; Breschi, M.; Devred, A.; Nijhuis, A.

    2017-09-01

    Cable-in-conduit conductors (CICCs) for ITER magnets are subjected to fast changing magnetic fields during the plasma-operating scenario. In order to anticipate the limitations of conductors under the foreseen operating conditions, it is essential to have a better understanding of the stability margin of magnets. In the last decade ITER has launched a campaign for characterization of several types of NbTi and Nb3Sn CICCs comprising quench tests with a singular sine wave fast magnetic field pulse and relatively small amplitude. The stability tests, performed in the SULTAN facility, were reproduced and analyzed using two codes: JackPot-AC/DC, an electromagnetic-thermal numerical model for CICCs, developed at the University of Twente (van Lanen and Nijhuis 2010 Cryogenics 50 139-148) and multi-constant-model (MCM) (Turck and Zani 2010 Cryogenics 50 443-9), an analytical model for CICCs coupling losses. The outputs of both codes were combined with thermal, hydraulic and electric analysis of superconducting cables to predict the minimum quench energy (MQE) (Bottura et al 2000 Cryogenics 40 617-26). The experimental AC loss results were used to calibrate the JackPot and MCM models and to reproduce the energy deposited in the cable during an MQE test. The agreement between experiments and models confirm a good comprehension of the various CICCs thermal and electromagnetic phenomena. The differences between the analytical MCM and numerical JackPot approaches are discussed. The results provide a good basis for further investigation of CICC stability under plasma scenario conditions using magnetic field pulses with lower ramp rate and higher amplitude.

  6. Instructions to authors

    Directory of Open Access Journals (Sweden)

    2011-05-01

    Full Text Available This section is to be used by authors of the special issue "Social media and language learning: (revolution?" who write their text in English. Please use the model article file attached when writing your text. 1. Submission and publication principles Authors whose texts have been accepted agree to transfer the associated rights permanently to the Alsic journal. They are free to re-publish these works (in printed or electronic form subject to the following conditions: they clearly indicate t...

  7. Variability in Light Use Efficiency With Changes in Vegetation Structure and Understory, Using a Temporally Changing Flux Footprint at the BERMS Old Jack Pine Site

    Science.gov (United States)

    Chasmer, L.; Barr, A.; Black, A.; Hopkinson, C.; Kljun, N.; McCaughey, H.; Treitz, P.; Shashkov, A.; Zha, T.

    2006-12-01

    Satellite remote sensing algorithms of vegetation gross primary productivity (GPP) often include a light use efficiency (LUE) term that varies depending on meteorological constraints and biome type. LUE is defined as the carbon fixed per mole of photosynthetically active radiation (PAR) absorbed by the canopy (APAR). LUE estimated using GPP from eddy covariance data is complex and changes over short time periods as the available resources (soil moisture, light, temperature, and nitrogen) vary. An understanding of the variability in LUE will improve local to regional estimates of GPP within complex vegetated land cover types using the variety of remote sensing technologies now available. This study examines variability in LUE and GPP at a mature jack pine site within the Fluxnet-Canada BERMS (Boreal Ecosystem Research and Monitoring Sites) study area using a flux footprint model (Kljun et al. 2004) and airborne lidar data (e.g. Chasmer et al. 2006). Three separate weeks of high frequency eddy covariance data are analyzed for June, July, and August 2002 to capture changes in photosynthesis and carbon uptake through the growing season with variations in precipitation and soil moisture. Footprint estimates are derived in half-hourly resolution to provide information on the spatial and temporal variation of the sources of measured C-fluxes. Airborne lidar directly samples ground topography and vegetation structure (i.e., canopy and understory height, gaps between trees, base of canopy), and may provide information on soil moisture and drainage at the ground surface via absorbed and reflected laser pulse energy. Two questions will be addressed specific to net ecosystem productivity (NEP) of the site as a whole, including parts of the ecosystem that may not be properly represented using eddy covariance techniques. These are: 1. How does C uptake and respiration spatially and temporally vary across the jack pine site? 2. How do vegetation characteristics vary with

  8. Growth of the Pacific jack Caranx caninus (Pisces: Carangidae from the coast of Colima, México

    Directory of Open Access Journals (Sweden)

    Elaine Espino Barr

    2008-03-01

    Full Text Available The Pacific jack Caranx caninus is a common species fished by artisanal fishermen off the coast of Colima, México. During 2002, monthly samples of morphometric data and otoliths were taken to determine age and growth. Seven age groups were identified. The highest growth, 14.4 cm, takes place during the first year of life. During the second year, C. caninus grows 11.76 cm; the third year 9.61 cm; the fourth 7.85 cm; the fifth 6.41 cm and sixth year 5.24 cm. The constants of von Bertalanffy´s growth equation were: L∞ = 83.26 cm, W∞ = 18.138 g, K = 0.202, t o = -0.283 and A0.95 = 15 years. Growth curves of other species of the same genus were calculated in order to compare them with the one obtained in the present work. The gonadosomatic index presented higher values during November and May. The periods of more intensive feeding are from August to February. Rev. Biol. Trop. 56 (1: 171-179. Epub 2008 March 31.El jurel Caranx caninus es una especie común que se captura en la pesca artesanal frente a las costas de Colima, México. Mensualmente, durante 2002, se tomaron datos morfométricos y muestras de otolitos para determinar la edad y el crecimiento. Se encontraron siete grupos de edad; durante el primer año de vida se da el mayor crecimiento, hasta 14.4 cm. Durante el segundo año, C. caninus crece 11.76 cm; el tercero 9.61 cm; el cuarto 7.85 cm; el quinto 6.41 cm y el último año crece 5.24 cm. Las constantes de la ecuación de crecimiento de von Bertalanffy fueron: L∞ = 83.26 cm, W∞ = 18.138 g, K = 0.202, to = -0.283 y la longevidad A0.95 = 15 años. Las curvas de crecimiento de otras especies del mismo género se compararon con las obtenidas en el presente trabajo. El índice gonadosomático presentó valores más altos durante noviembre y mayo. Los periodos de tiempo de alimentación más intensa son de agosto a febrero.

  9. Desidratação osmótica de fatias de jaca Osmotic dehydration of jack fruit slices

    Directory of Open Access Journals (Sweden)

    Maria Elita Martins Duarte

    2012-09-01

    Full Text Available O presente trabalho foi realizado com o objetivo de estudar a cinética e modelagem do processo de desidratação osmótica de fatias de jaca em geometria plana. O tratamento osmótico foi conduzido a 43 ºC, com agitação, utilizando-se de soluções de sacarose, nas concentrações de 40 e 50 ºBrix. O estudo da cinética de desidratação osmótica mostrou que na solução de sacarose a 50 ºBrix o valor da perda de água (WL foi maior ao final de 28,5 horas de processo (68,5% b.u para 40,2% b.u., ligeiramente superior ao encontrado para a solução de sacarose a 40 ºBrix, (68,5% b.u para 43% b.u.. Comportamento contrário ocorreu para o ganho de sólidos (SG. O ajuste dos dados experimentais foi realizado através dos modelos de Page e Fick. Pela análise da equação de Fick, verificou-se que os coeficientes de difusividade efetiva foram 0,5837 e 0,6677 mm² min-1 para 40 e 50 ºBrix, respectivamente.The present work was undertaken with the objective of studying the kinetics and the osmotic-dehydration modeling of slices of jack-fruit in a flat layout. The osmotic treatment was carried out at 43ºC, employing agitation, and using sucrose solutions at concentrations of 40º and 50º Brix. The study of the kinetics of osmotic dehydration showed that in the sucrose solution at 50º Brix, the value of the water-loss (WL was higher after 28.5 hours of processing (68.5% wb to 40.2% wb , slightly higher than that found for the sucrose solution at 40º Brix (68.5% wb to 43% wb. The opposite behavior was observed for the gain in solids (SG. Adjustment of the experimental data was done using the Page and Fick models. From the analysis of the Fick equation, it was found that the effective diffusivity coefficients were 0.5837 and 0.6677 mm² min-1 for 40º and 50º Brix, respectively.

  10. Best practices in writing instruction

    CERN Document Server

    Fitzgerald, Jill; MacArthur, Charles A

    2014-01-01

    An indispensable teacher resource and course text, this book presents evidence-based practices for helping all K-12 students develop their skills as writers. Every chapter draws clear connections to the Common Core State Standards (CCSS). Leading authorities describe how to teach the skills and strategies that students need to plan, draft, evaluate, and revise multiple types of texts. Also addressed are ways for teachers to integrate technology into the writing program, use assessment to inform instruction, teach writing in the content areas, and tailor instruction for English language learner

  11. Mycological Research: instructions and guidelines for authors.

    Science.gov (United States)

    Hawksworth, David L

    2007-01-01

    Instructions and guidelines for authors submitting papers to Mycological Research are provided. The journal is international and covers all fields of mycology, both fundamental and applied. It publishes news items, reviews, original papers, and book reviews. Contributions should be of interest to a wide spectrum of mycologists or make significant novel contributions. Papers with particularly exciting results are fast-tracked and prioritized for publication. Submission must be made online via the Elsevier Editorial System (ees.elsevier.com/mycres); hard copy submissions are no longer accepted. Information is provided on: scope and timeliness; submission of articles; manuscript preparation; tables; illustrations; spellings, numbers, chemical symbols, and abbreviations; voucher material; molecular data; taxonomic data; references; the decision-making process; copyright; author's copies; proofs; and further questions.

  12. Public vs. Private (and beyond)

    Science.gov (United States)

    Poliniak, Susan

    2012-01-01

    Different types of schools make for different experiences. Pros and cons abound, whether one teaches at a public, private, magnet, or charter school. Although it's certainly true that some individual schools may offer better environments for music education than others, no type of school is categorically the "best." Still, it can be instructive to…

  13. The effects of combination of Eurycoma longifolia Jack ethanolic extract and doxorubicine on hematological profile in rats given by 7,12-dimethylbenz(a)anthracene

    Science.gov (United States)

    Nurani, L. H.; Mursyidi, A.; Widyarini, S.; Rohman, A.

    2017-11-01

    Doxorubicin (Dox) is known as anticancer drug commonly used for cancer treatment. Eurycoma longifolia Jack or Pasakbumi was reported to have chemopreventive effect. In cancer patients, there are some dysfunctions of blood parameter, therefore some hematologic tests are needed to monitor cancer patients. In this study, the effects of combination of ethanolic extract of E. longifolia Jack (EEE) and Dox on hematologic profiles were investigated in rats injected by DMBA. Rats were divided into eight groups. Group I was normal group; Group II, rats were treated with extract dose 100 mg/kgbw; Groups III, IV, V, VI, VII and VIII, rats were treated with Dox, DMBA, DMBA+Dox, DMBA+EEE, DMBA+Dox +EEE, and Dox+EEE, respectively. DMBA administration orally was conducted twice a week for 5 weeks. At 16th week of treatments, bloods were taken from orbitalis sinus for hematologicals profile (levels of Hb, erytrocyte, hematocrite, leukocyte, MCV, MCH, and differencial leucocyte count) measurements. These data were analyzed by one way ANOVA followed by LSD test. DMBA administration significantly decreased the hematological profiles compared to the normal group, except in lymphocyte level. Rats treated with extract and extract+Dox were able to increase the hematological profile compared to rats given by DMBA only. Based on these findings it can be concluded that the combination of EEE and Dox potentially increase hematological profile of rats given by DMBA.

  14. Clinical Performance and Safety of 108 SpineJack Implantations: 1-Year Results of a Prospective Multicentre Single-Arm Registry Study

    Directory of Open Access Journals (Sweden)

    David Noriega

    2015-01-01

    Full Text Available This prospective, consecutive, multicentre observational registry aimed to confirm the safety and clinical performance of the SpineJack system for the treatment of vertebral compression fractures (VCF of traumatic origin. We enrolled 103 patients (median age: 61.6 years with 108 VCF due to trauma, or traumatic VCF with associated osteoporosis. Primary outcome was back pain intensity (VAS. Secondary outcomes were Oswestry Disability Index (ODI, EuroQol-VAS, and analgesic consumption. 48 hours after surgery, a median relative decrease in pain intensity of 81.5% was observed associated with a significant reduction in analgesic intake. Improvements in disability (91.3% decrease in ODI score and in quality of life (increase 21.1% of EQ-VAS score were obtained 3 months after surgery. All results were maintained at 12 months. A reduction in the kyphotic angulation was observed postoperatively (-5.4±6.3°; p<0.001, remained at 12 months (-4.4±6.0°, p=0.002. No adverse events were implant-related and none required device removal. Three patients (2.9% experienced procedure-related complications. The overall adjacent fracture rate up to 1 year after surgery was 2.9%. The SpineJack procedure is an effective, low-risk procedure for patients with traumatic VCF allowing a fast and sustained improvement in quality of life over 1 year after surgery.

  15. DMPD: MyDths and un-TOLLed truths: sensor, instructive and effector immunity totuberculosis. [Dynamic Macrophage Pathway CSML Database

    Lifescience Database Archive (English)

    Full Text Available 18191460 MyDths and un-TOLLed truths: sensor, instructive and effector immunity totuberculosis...g) (.svg) (.html) (.csml) Show MyDths and un-TOLLed truths: sensor, instructive and effector immunity totuberculosis...e and effector immunity totuberculosis. Authors Reiling N, Ehlers S, Holscher C. Publication Immunol Lett. 2

  16. Instructional Design Thought Processes of Expert Nurse Educators

    OpenAIRE

    Gross, Monty Dale

    2006-01-01

    This study explores how expert nurse educators design instruction. Six female expert nurse educators volunteered to participate. Each participant had over ten years experience teaching, and all were recognized for their teaching excellence. They also had master's or doctoral degrees. Participants worked in small private schools, community colleges, or large public universities. The methodology was based in developmental research. Qualitative data sources included interviews, think-aloud proto...

  17. Justifying Music Instruction in American Public Schools: A Historical Perspective.

    Science.gov (United States)

    Jorgensen, Estelle R.

    1995-01-01

    Charts the development of music education from early utilitarianism up to its current emphasis on aesthetic value. Recent attempts to pursue music education as an interdisciplinary subject have been limited due to budget cuts. Briefly discusses this financial crisis and suggests some sources of alternative funding. (MJP)

  18. Library Instruction. SPEC Kit 17.

    Science.gov (United States)

    Association of Research Libraries, Washington, DC. Office of Management Studies.

    At the request of the Pennsylvania State University Library, the Office of Management Studies surveyed Association of Research Libraries (ARL) members requesting information and documentation illustrating the organization, nature, and level of the library instruction function at their institutions. A review of the responses from 64 of the 94 ARL…

  19. Assistant for instructional development (AID)

    NARCIS (Netherlands)

    Meer, J.P. van; Veldhuis, G.J.; Emmerik, M.L. van; Theunissen, N.C.M.

    2007-01-01

    Introduction: Due to periodical job rotation within the military, instructional developers are not always experts in their field and are consequently unaware of the types of educational concepts that are available to teach with (Jans & Frazer-Jans, 2004). These observations have led to the

  20. Using Observation to Improve Instruction

    Science.gov (United States)

    Powell, William; Napoliello, Susan

    2005-01-01

    The International School of Kuala Lumpur in Malaysia, which serves international students in preschool through middle school, focused a great deal of professional attention on differentiation. The administrators in Malaysian school, by making rounds of classrooms, raised teachers' awareness of differentiated instruction.

  1. Learning Strategy Instruction Innovation Configuration

    Science.gov (United States)

    Schumaker, Jean B.

    2011-01-01

    One way of helping students with learning disabilities and other struggling students to be independent life-long learners is to teach them how to use learning strategies in efficient ways. Learning strategy instruction can provide students the opportunity to succeed in today's schools and meet rigorous standards, transforming ineffective learners…

  2. Unpacking Corrections in Mobile Instruction

    DEFF Research Database (Denmark)

    Levin, Lena; Cromdal, Jakob; Broth, Mathias

    2017-01-01

    that the practice of unpacking the local particulars of corrections (i) provides for the instructional character of the interaction, and (ii) is highly sensitive to the relevant physical and mobile contingencies. These findings contribute to the existing literature on the interactional organisation of correction...

  3. Three Logics of Instructional Leadership

    Science.gov (United States)

    Rigby, Jessica G.

    2014-01-01

    Purpose: This study examines conceptions of instructional leadership in the institutional environment. We know that principals' practices affect student learning and that principals are influenced by ideas in the broader environment. This article examines and defines the multiple conceptions of what it means for principals to be instructional…

  4. Conversation Walks: Improving Instructional Leadership

    Science.gov (United States)

    Zepeda, Sally J.; Lanoue, Philip D.

    2017-01-01

    Principals are tasked with being the instructional leaders in their schools--developing teacher's abilities through formal and informal classroom observations and feedback. But how can school districts ensure that principals have the skills they need to fulfill this crucial role? In Clarke County School District in Georgia, central-office leaders…

  5. Understanding the Supplemental Instruction Leader

    Science.gov (United States)

    James, Adrian; Moore, Lori

    2018-01-01

    This article explored the learning styles and leadership styles of Supplemental Instruction (SI) leaders at Texas A&M University, and the impact of those preferences on recurring attendance to their sessions. The Learning Style Inventory, the Multifactor Leadership Questionnaire, and a demographic instrument were administered to SI leaders…

  6. Preparing Instructional Leaders: A Model

    Science.gov (United States)

    Brazer, S. David; Bauer, Scott C.

    2013-01-01

    Purpose: This article proposes a model that provides one means of making instructional leadership the central focus of leadership preparation. It draws from conceptualizations of teaching and learning as well as organizational and leadership theory to advocate for greater coherence in education leadership programs. Conceptual Argument: We begin…

  7. Cement Mason's Curriculum. Instructional Units.

    Science.gov (United States)

    Hendirx, Laborn J.; Patton, Bob

    To assist cement mason instructors in providing comprehensive instruction to their students, this curriculum guide treats both the skills and information necessary for cement masons in commercial and industrial construction. Ten sections are included, as follow: related information, covering orientation, safety, the history of cement, and applying…

  8. Health Instruction Packages: Cardiac Anatomy.

    Science.gov (United States)

    Phillips, Gwen; And Others

    Text, illustrations, and exercises are utilized in these five learning modules to instruct nurses, students, and other health care professionals in cardiac anatomy and functions and in fundamental electrocardiographic techniques. The first module, "Cardiac Anatomy and Physiology: A Review" by Gwen Phillips, teaches the learner to draw…

  9. Interior Design: Teacher's Instructional Guide.

    Science.gov (United States)

    Hays, Tricia

    This teacher's instructional guide, which is part of a family and consumer sciences education series focusing on a broad range of employment opportunities, is intended to assist teachers responsible for teaching one- and two-year interior design programs for Texas high school students. The following are among the items included: (1) introductory…

  10. Succession Planning for Library Instruction

    Science.gov (United States)

    Sobel, Karen; Drewry, Josiah

    2015-01-01

    Detailed succession planning helps libraries pass information from one employee to the next. This is crucial in preparing for hiring, turnover, retirements, training of graduate teaching assistants in academic libraries, and other common situations. The authors of this article discuss succession planning for instruction programs in academic…

  11. Adaptive Instruction: Building on Diversity.

    Science.gov (United States)

    Wang, Margaret C.

    1980-01-01

    The use of alternative instructional strategies and resources to meet the learning needs of individual students incorporates the diagnosis of student learning progress, the teaching of self-management skills, organizational supports, and family involvement into an effective educational program. (JN)

  12. Gestalt Theory and Instructional Design.

    Science.gov (United States)

    Moore, Patrick; Fitz, Chad

    1993-01-01

    Offers a brief overview of Gestalt theory. Shows how six Gestalt principles (proximity, closure, symmetry, figure-ground segregation, good continuation, and similarity) can be applied to improve a reader's comprehension of a badly designed instruction module that uses several graphics. (SR)

  13. The Basics of Blended Instruction

    Science.gov (United States)

    Tucker, Catlin R.

    2013-01-01

    Even though many of teachers do not have technology-rich classrooms, the rapidly evolving education landscape increasingly requires them to incorporate technology to customize student learning. Blended learning, with its mix of technology and traditional face-to-face instruction, is a great approach. Blended learning combines classroom learning…

  14. An Experiment in Museum Instruction.

    Science.gov (United States)

    Bloomberg, Marguerite

    Various lesson plans for museum instruction were tested on fifth grade children of fair and high intelligence in an attempt to improve upon the "accepted method" of teaching, which was thought to be better suited to the child of low intelligence than to his abler classmates. The lesson plans tested were: (1) the accepted method…

  15. Market Segmentation: An Instructional Module.

    Science.gov (United States)

    Wright, Peter H.

    A concept-based introduction to market segmentation is provided in this instructional module for undergraduate and graduate transportation-related courses. The material can be used in many disciplines including engineering, business, marketing, and technology. The concept of market segmentation is primarily a transportation planning technique by…

  16. Instruction of Competent Psychomotor Skill

    Science.gov (United States)

    Olson, Valerie Dong

    2008-01-01

    Instruction of competent psychomotor skill necessitates an eclectic approach. The principles of learning, complemented with learning styles and sensory modalities preferences, provide a background for teaching physical skills. The use of the psychomotor domain of Bloom's Taxonomy as a map and corresponding behavioral objectives foster the mastery…

  17. Attrition Cost Model Instruction Manual

    Science.gov (United States)

    Yanagiura, Takeshi

    2012-01-01

    This instruction manual explains in detail how to use the Attrition Cost Model program, which estimates the cost of student attrition for a state's higher education system. Programmed with SAS, this model allows users to instantly calculate the cost of attrition and the cumulative attrition rate that is based on the most recent retention and…

  18. Women Administrators as Instructional Leaders

    Science.gov (United States)

    Horner, Beth A.

    2013-01-01

    Women are under-represented in educational research and are much less likely to hold administrative positions than are men. This study, using the Liberal Feminist Theory and Structural Barrier Theory, proffers possible explanations for this phenomenon. Four women leaders were interviewed to gain insight into their instructional leadership…

  19. International Instructional Systems: Social Studies

    Science.gov (United States)

    Brant, Jacek; Chapman, Arthur; Isaacs, Tina

    2016-01-01

    This paper reports on research conducted as part of the International Instructional System Study that explored five subject areas across nine jurisdictions in six high-performing countries. The Study's overall aim was to understand what, if anything, there is in common in the curricula and assessment arrangements among the high-performing…

  20. Transportation Brokerage: An Instructional Module.

    Science.gov (United States)

    Hayden, Linda

    A concept-based introduction to transportation brokerage is provided in this instructional module for undergraduate and graduate transportation-related courses for disciplines such as engineering, business, marketing, and technology. The concept of transportation brokerage is defined as an assignment of the management of a specific element of a…

  1. Computer Assisted Instruction in Basic.

    Science.gov (United States)

    1983-09-28

    LIBRARY........................16 Program Purpose.........................16 Flowcharts ..........................17 Lessons...17IFlowchart For Main Menu...............19 Flowchart for Lessons One Through Six......................20 CHAPTER Page Tests I1-6 .* 21 Flowchart For...Software support was limited to off-the-shelf packages. All of the computers were purchased with Beginners All Purpose Instruction Code (BASIC), a word

  2. Instructional Staff Salary and Benefits Spending: 1991-2011. Data Point. NCES 2016-156

    Science.gov (United States)

    Malkus, Nat; Hoyer, Kathleen Mulvaney

    2016-01-01

    This report uses expenditure data from the Common Core of Data (CCD) "National Public Education Financial Survey (NPEFS)" for fiscal years 1991 to 2011 and instructional staff data from the CCD "State Nonfiscal Survey of Public Elementary/Secondary Education" for school years 1990-91 to 2010-11. The CCD annually collects fiscal…

  3. Language Policy-Making in Multilingual Education: Mass Media and the Framing of Medium of Instruction

    Science.gov (United States)

    Tollefson, James W.

    2015-01-01

    In some settings, medium of instruction (MOI) policies in multilingual education break out into public debates in mass media involving politicians, business leaders, government officials, parents, and school children. These public discussions of MOI often index struggles over the distribution of political power and economic resources, and issues…

  4. Easements in Texas. Teachers Instructional Packet, TIP No. 5, Spring 1985.

    Science.gov (United States)

    Texas A and M Univ., College Station. Texas Real Estate Research Center.

    Part of a series of classroom aids designed for real estate instructors, this instructional packet was developed to help real estate students understand public and private easements, which most commonly entail the right of a person (or the public) to use the land of another in a certain manner. Following an evaluation form for the packet, a…

  5. Bibliographic Instruction in the 21st Century.

    Science.gov (United States)

    Poirier, Gayle

    2000-01-01

    Discusses bibliographic instruction in libraries. Topics include a history of bibliographic instruction; the Internet and electronic searching; librarians' use of technology; defining information needs; locating and accessing information, including classification systems and Boolean searching; evaluating information; using and communication…

  6. Removing Administrative Impediments to Instructional Improvement Efforts.

    Science.gov (United States)

    Anderson, Lorin W.; Pigford, Aretha B.

    1987-01-01

    Principals can and should develop strategies that will enable them to provide instructional leadership despite increased demands from other tasks. Recommended actions include: delegation; peer observation; commitment to instructional leadership; and effective communication with teachers. (CB)

  7. Student-Created Public Relations for Gifted Education.

    Science.gov (United States)

    Bisland, Amy

    2003-01-01

    This article discusses the benefits of student participation in a gifted public relations campaign, including creating public support for gifted programming and developing leadership skills. Steps for developing a formal unit of instruction on public relations are described, along with ideas for public relations activities. (Contains references.)…

  8. From a Managerial Imperative to a Learning Imperative: Experiences of Urban, Public School Principals

    Science.gov (United States)

    Terosky, Aimee LaPointe

    2014-01-01

    Purpose: This article examines the experiences of urban, public school principals noted for their instructional leadership and highlights a leadership approach grounded in a learning imperative. Framework: This article explores the concept of instructional leadership, defined as attending to instructional matters, as embedded in an urban public…

  9. Piano instruction for nursery school trainees

    OpenAIRE

    新海, 節; Makoto, SHINKAI; 藤女子大学人間生活学部保育学科

    2012-01-01

    It is important piano instruction in childcare training schools be viewed primarily as "music for childcare". To this end,it is also important that the view of piano instruction for nursery school trainees be switched from one mainly focused on the technical aspects of performance using many etudes to a form of instruction based on developing the musicality of the trainees and their ability to display emotion through music. Further, through this instruction, the trainees need to develop the a...

  10. Pre-Service Teachers: An Analysis of Reading Instruction in High Needs Districts Dual Language Classrooms

    Directory of Open Access Journals (Sweden)

    Michael Whitacre

    2013-01-01

    Full Text Available Pre-service teachers need opportunities to apply theory and connect to best practices as they teach in classroom settings be it, whole or small group. For many pre-service teachers often times their experience is limited to simply watching instruction or working with small groups of students (Pryor & Kuhn, 2004. The student teaching experience is a critical component of the teacher preparation program. Through the use of the English Language Learner Classroom Observation Instrument (ELLCOI, and researcher observation the hope is that these will aid in bringing to light the instructional activities used by pre-service teachers during reading instruction with ELLs. This study explores how pre-service bilingual teachers connect theory into practice by examining their instruction in the following categories: Instructional Practices, Interactive Teaching, English-Language Development, and Content Specific to Reading as listed in The English Language Learner Classroom Observation Instrument (ELLCOI developed by Haager, Gersten, Baker, and Graves (2003. To capture these instructional events video tape recordings of eight South Texas pre-service teachers were taken during a reading language arts lesson in order to observe instruction in high need districts’ dual language/bilingual classrooms. Data were compiled to capture the nature and quality of instruction on key essential elements, as well as reading instructional practices specific to the teaching/learning process in the dual language classroom. The findings portray the results of the ELLCOI with bilingual/ESL pre- service teachers and how they make sense of their instructional practices as a means to instruction in one-way dual language public school classrooms.

  11. Technology Use in Higher Education Instruction

    Science.gov (United States)

    Elzarka, Sammy

    2012-01-01

    The significance of integrating technology use in higher education instruction is undeniable. The benefits include those related to access to instruction by underserved populations, adequately preparing students for future careers, capitalizing on best instructional practices, developing higher order thinking activities, and engaging students…

  12. On the Practice Architectures of Instructional Leadership

    Science.gov (United States)

    Salo, Petri; Nylund, Jan; Stjernstrøm, Else

    2015-01-01

    This paper explores the concept of instructional leadership and principals' perceptions of the practices of instructional leadership. Despite the emphasis on the effects of school leadership regarding teaching practices and learning outcomes, research on direct instructional leadership is scarce. It is focused either on identifying overall…

  13. Students and Instructors Opinions about Piano Instruction

    Science.gov (United States)

    Kilic, Deniz Beste Çevik

    2016-01-01

    This study examined the opinions of the students and piano instructors in the Turkish Education Faculties' Fine Arts Instruction Departments' music instruction programs about piano instruction. The study data were collected using a questionnaire administered to the piano instructors and the students who took lessons from them. The study results…

  14. Explicit Instruction Elements in Core Reading Programs

    Science.gov (United States)

    Child, Angela R.

    2012-01-01

    Classroom teachers are provided instructional recommendations for teaching reading from their adopted core reading programs (CRPs). Explicit instruction elements or what is also called instructional moves, including direct explanation, modeling, guided practice, independent practice, discussion, feedback, and monitoring, were examined within CRP…

  15. A Performance-Based Instructional Theory

    Science.gov (United States)

    Lawson, Tom E.

    1974-01-01

    The rationale for a performanced- based instructional theory has arisen from significant advances during the past several years in instructional psychology. Four major areas of concern are: analysis of subject-matter content in terms of performance competencies, diagnosis of pre-instructional behavior, formulation of an instructional…

  16. Effective Instruction: A Mathematics Coach's Perspective

    Science.gov (United States)

    Nebesniak, Amy L.

    2012-01-01

    Effective instruction is multifaceted, dependent largely on the context and, consequently, on numerous variables. Although "effective instruction" is difficult to define, in the author's experience--and as the work of mathematics education specialists and researchers indicates--three key features of quality instruction stand out: (1) Teaching…

  17. Changing Student Teachers' Views of Comprehension Instruction ...

    African Journals Online (AJOL)

    At the same time research shows that little, if any, explicit and continuous strategy instruction takes place in classrooms. Reasons seem ... This article reports on the effect of a reading comprehension instruction course on university student teachers' lesson planning, strategy use and views about comprehension instruction.

  18. Instructional Cost Analysis: History and Present Inadequacies.

    Science.gov (United States)

    Humphrey, David A.

    The cost analysis of instruction is conducted according to principles of teaching and learning that have often become historically dated. Using today's costing systems prevents determination of whether cost effectiveness actually exists. The patterns of instruction in higher education and the systems employed for instructional cost analysis are…

  19. Rapid Prototyping: An Alternative Instructional Design Strategy.

    Science.gov (United States)

    Tripp, Steven D.; Bichelmeyer, Barbara

    1990-01-01

    Discusses the nature of instructional design and describes rapid prototyping as a feasible model for instructional system design (ISD). The use of prototyping in software engineering is described, similarities between software design and instructional design are discussed, and an example is given which uses rapid prototyping in designing a…

  20. Four Practical Principles for Enhancing Vocabulary Instruction

    Science.gov (United States)

    Manyak, Patrick C.; Von Gunten, Heather; Autenrieth, David; Gillis, Carolyn; Mastre-O'Farrell, Julie; Irvine-McDermott, Elizabeth; Baumann, James F.; Blachowicz, Camille L. Z.

    2014-01-01

    This article presents four practical principles that lead to enhanced word-meaning instruction in the elementary grades. The authors, a collaborative team of researchers and classroom teachers, identified and developed these principles and related instructional activities during a three-year vocabulary instruction research project. The principles…

  1. How can we make user instructions motivational?

    NARCIS (Netherlands)

    Steehouder, M.F.; Loorbach, N.R.

    2004-01-01

    Good technical instructions are often viewed as 'cool, concise and professional', but there are good arguments to pay attention to their persuasive and motivational aspects as well. Until now, only analyses of existing instructions have been published, while guidelines for making instructions

  2. Direct Reading Instruction and the NYS ELA

    Science.gov (United States)

    Jones-Carey, Margaret H.

    2013-01-01

    This study analyzed the impact of classroom based reading instruction ("direct instruction") on the standardized test scores of 6th grade students as measured by the New York State English Language Arts assessment (NYS ELA). It was hypothesized that the implementation of direct instruction in reading in grade 6 would improve NYS ELA…

  3. Direct Vocabulary Instruction in Preschool: A Comparison of Extended Instruction, Embedded Instruction, and Incidental Exposure

    Science.gov (United States)

    Loftus-Rattan, Susan M.; Mitchell, Alison M.; Coyne, Michael D.

    2016-01-01

    Based on its coincidence with a significant period in language development for children, preschool provides a favorable setting to foster vocabulary growth. The purpose of this study was to evaluate the effectiveness of two instructional conditions and an incidental exposure condition for teaching targeted vocabulary words to preschool students…

  4. An investigation of mathematics and science instruction in English and Spanish for English language learners

    Science.gov (United States)

    Rodriguez-Esquivel, Marina

    The contextual demands of language in content area are difficult for ELLS. Content in the native language furthers students' academic development and native language skills, while they are learning English. Content in English integrates pedagogical strategies for English acquisition with subject area instruction. The following models of curriculum content are provided in most Miami Dade County Public Schools: (a) mathematics instruction in the native language with science instruction in English or (b) science instruction in the native language with mathematics instruction in English. The purpose of this study was to investigate which model of instruction is more contextually supportive for mathematics and science achievement. A pretest and posttest, nonequivalent group design was used with 94 fifth grade ELLs who received instruction in curriculum model (a) or (b). This allowed for statistical analysis that detected a difference in the means of .5 standard deviations with a power of .80 at the .05 level of significance. Pretreatment and post-treatment assessments of mathematics, reading, and science achievement were obtained through the administration of Aprenda-Segunda Edicion and the Florida Comprehensive Achievement Test. The results indicated that students receiving mathematics in English and Science in Spanish scored higher on achievement tests in both Mathematics and Science than the students who received Mathematics in Spanish and Science in English. In addition, the mean score of students on the FCAT mathematics examination was higher than their mean score on the FCAT science examination regardless of the language of instruction.

  5. Demonstrating Empathy: A Phenomenological Study of Instructional Designers Making Instructional Strategy Decisions for Adult Learners

    Science.gov (United States)

    Vann, Linda S.

    2017-01-01

    Instructional designers are tasked with making instructional strategy decisions to facilitate achievement of learning outcomes as part of their professional responsibilities. While the instructional design process includes learner analysis, that analysis alone does not embody opportunities to assist instructional designers with demonstrations of…

  6. 30 CFR 48.25 - Training of new miners; minimum courses of instruction; hours of instruction.

    Science.gov (United States)

    2010-07-01

    ...; minimum courses of instruction; hours of instruction. (a) Each new miner shall receive no less than 24...: Provided, That no less than 8 hours of training shall in all cases be given to new miners before they are... instruction; hours of instruction. 48.25 Section 48.25 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION...

  7. Evaluation of a Theory of Instructional Sequences for Physics Instruction

    Science.gov (United States)

    Wackermann, Rainer; Trendel, Georg; Fischer, Hans E.

    2010-05-01

    The background of the study is the theory of basis models of teaching and learning, a comprehensive set of models of learning processes which includes, for example, learning through experience and problem-solving. The combined use of different models of learning processes has not been fully investigated and it is frequently not clear under what circumstances a particular model should be used by teachers. In contrast, the theory under investigation here gives guidelines for choosing a particular model and provides instructional sequences for each model. The aim is to investigate the implementation of the theory applied to physics instruction and to show if possible effects for the students may be attributed to the use of the theory. Therefore, a theory-oriented education programme for 18 physics teachers was developed and implemented in the 2005/06 school year. The main features of the intervention consisted of coaching physics lessons and video analysis according to the theory. The study follows a pre-treatment-post design with non-equivalent control group. Findings of repeated-measures ANOVAs show large effects for teachers' subjective beliefs, large effects for classroom actions, and small to medium effects for student outcomes such as perceived instructional quality and student emotions. The teachers/classes that applied the theory especially well according to video analysis showed the larger effects. The results showed that differentiating between different models of learning processes improves physics instruction. Effects can be followed through to student outcomes. The education programme effect was clearer for classroom actions and students' outcomes than for teachers' beliefs.

  8. Latina Social Studies Teachers Negotiating Public Institutions

    Science.gov (United States)

    Rivas, Elizabeth D.

    2017-01-01

    This mixed methods study explores the institutionalized master narrative of public institutions and how the mandated policies enacted by public institutions impact Latina social studies teachers when delivering instruction to their students. A socio-transformative constructivist framework guides this study to affirm that knowledge is socially…

  9. DESIGNING INSTRUCTION FOR THE TRADITIONAL, ADULT, AND DISTANCE LEARNER: A New Engine for Technology-Based Teaching

    Directory of Open Access Journals (Sweden)

    Lawrence A. Tomei

    2011-10-01

    Full Text Available Adult students demand a wider variety of instructional strategies that encompass real-world, interactive, cooperative, and discovery learning experiences.Designing Instruction for the Traditional, Adult, and Distance Learner: A New Engine for Technology-Based Teaching explores how technology impacts the process of devising instructional plans as well as learning itself in adult students. Containing research from leading international experts, this publication proposes realistic and accurate archetypes to assist educators in incorporating state-of-the-art technologies into online instruction.This text proposes a new paradigm for designing, developing, implementing, and assessed technology-based instruction. It addresses three target populations of today's learner: traditional, adult, and distance education. The text proposes a new model of instructional system design (ISD for developing effective technology-based education that involves a five-step process focusing on the learner, learning theories, resources, delivery modalities, and outcomes.

  10. Instructional Leadership and Schools Effectiveness

    Science.gov (United States)

    Hung, Daisy Kee Mui; Ponnusamy, Premavathy

    With the influx of information technology through the Internet and the use of ICT in our daily lives, our future generation has traversed from a mere change of era to a dynamic era of change. Thus, the role of school leaders is becoming more challenging than ever. They need to make greater strides to ensure that they are able to make adjustments and readjustments in instructional practices to cater for the changing elements in their organization. In brief, the school leaders have to be creative, innovative with entrepreneurial drive in order to steer their subordinates (teachers) towards school excellence. Leadership of principal is therefore considered as a main criterion to create successful schools in country's educational advancement. Besides, the school effectiveness plays a crucial role in country's academic advancement. This paper focuses on a comprehensive review of literature on the relationship between instructional leadership and school effectiveness.

  11. Collaboration systems for classroom instruction

    Science.gov (United States)

    Chen, C. Y. Roger; Meliksetian, Dikran S.; Chang, Martin C.

    1996-01-01

    In this paper we discuss how classroom instruction can benefit from state-of-the-art technologies in networks, worldwide web access through Internet, multimedia, databases, and computing. Functional requirements for establishing such a high-tech classroom are identified, followed by descriptions of our current experimental implementations. The focus of the paper is on the capabilities of distributed collaboration, which supports both synchronous multimedia information sharing as well as a shared work environment for distributed teamwork and group decision making. Our ultimate goal is to achieve the concept of 'living world in a classroom' such that live and dynamic up-to-date information and material from all over the world can be integrated into classroom instruction on a real-time basis. We describe how we incorporate application developments in a geography study tool, worldwide web information retrievals, databases, and programming environments into the collaborative system.

  12. SAFETY INSTRUCTION AND SAFETY NOTE

    CERN Multimedia

    TIS Secretariat

    2002-01-01

    Please note that the SAFETY INSTRUCTION N0 49 (IS 49) and the SAFETY NOTE N0 28 (NS 28) entitled respectively 'AVOIDING CHEMICAL POLLUTION OF WATER' and 'CERN EXHIBITIONS - FIRE PRECAUTIONS' are available on the web at the following urls: http://edms.cern.ch/document/335814 and http://edms.cern.ch/document/335861 Paper copies can also be obtained from the TIS Divisional Secretariat, email: TIS.Secretariat@cern.ch

  13. Instructional skills evaluation in nuclear industry training

    International Nuclear Information System (INIS)

    Mazour, T.J.; Ball, F.M.

    1985-11-01

    This report provides information to nuclear power plant training managers and their staffs concerning the job performance requirements of instructional personnel to implement prformance-based training programs (also referred to as the Systems Approach Training). The information presented in this report is a compilation of information and lessons learned in the nuclear power industry and in other industries using performance-based training programs. The job performance requirements in this report are presented as instructional skills objectives. The process used to develop the instructional skills objectives is described. Each objective includes an Instructional Skills Statement describing the behavior that is expected and an Instructional Skills Standard describing the skills/knowledge that the individual should possess in order to have achieved mastery. The instructional skills objectives are organized according to the essential elements of the Systems Approach to Training and are cross-referenced to three categories of instructional personnel: developers of instruction, instructors, and instructional managers/supervisors. Use of the instructional skills objectives is demonstrated for reviewing instructional staff training and qualification programs, developing criterion-tests, and reviewing the performance and work products of individual staff members. 22 refs

  14. Wear if a NBR seal for a oil jack pump; Desgaste de um retentor de NBR utilizado em uma unidade de bombeio de petroleo

    Energy Technology Data Exchange (ETDEWEB)

    Lima, Washington B. de; Barros, Levi B.; Machado, Jonata F.; Silva, Jailson H. Costa da [Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN (Brazil)], e-mail: uoxito@hotmail.com, e-mail: levibarreto@hotmail.com.br, e-mail: jonataferreira@hotmail.com, e-mail: jailson.costa@pop.com.br; Medeiros, Joao Telesforo N. [Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN (Brazil). Grupo de Estudos de Tribologia], e-mail: medeirosj2@asme.org

    2007-07-01

    The NBR seals are used in tribological systems because they are resistance to solvent, oil and fuel. This elastomer is used in the jack pump (oil pump unit-PETROBRAS), it is located in the stuffing box. It converts the rotational movement of an electric motor to a vertical reciprocating movement to drive the pump shaft, generating a tribological contact between the polished rod and the seal, avoiding oil leakage. In this work, was developed an experimental test rig to simulate the sealing conditions of the tribological pair polished rod-seal package for a oil pumping unit in a 1:1 scale. In the experimental part of this work were used several techniques as thermal history, Scanning Electron Microscope (SEM), hardness and mass losses analysis. The friction influence on the temperature was one of the most important effect caused by the contact. The SEM analyses and the hardness losses had evidenced the damage on the surface submitted to the contact. (author)

  15. Evolution of Conifer Diterpene Synthases: Diterpene Resin Acid Biosynthesis in Lodgepole Pine and Jack Pine Involves Monofunctional and Bifunctional Diterpene Synthases1[W][OA

    Science.gov (United States)

    Hall, Dawn E.; Zerbe, Philipp; Jancsik, Sharon; Quesada, Alfonso Lara; Dullat, Harpreet; Madilao, Lina L.; Yuen, Macaire; Bohlmann, Jörg

    2013-01-01

    Diterpene resin acids (DRAs) are major components of pine (Pinus spp.) oleoresin. They play critical roles in conifer defense against insects and pathogens and as a renewable resource for industrial bioproducts. The core structures of DRAs are formed in secondary (i.e. specialized) metabolism via cycloisomerization of geranylgeranyl diphosphate (GGPP) by diterpene synthases (diTPSs). Previously described gymnosperm diTPSs of DRA biosynthesis are bifunctional enzymes that catalyze the initial bicyclization of GGPP followed by rearrangement of a (+)-copalyl diphosphate intermediate at two discrete class II and class I active sites. In contrast, similar diterpenes of gibberellin primary (i.e. general) metabolism are produced by the consecutive activity of two monofunctional class II and class I diTPSs. Using high-throughput transcriptome sequencing, we discovered 11 diTPS from jack pine (Pinus banksiana) and lodgepole pine (Pinus contorta). Three of these were orthologous to known conifer bifunctional levopimaradiene/abietadiene synthases. Surprisingly, two sets of orthologous PbdiTPSs and PcdiTPSs were monofunctional class I enzymes that lacked functional class II active sites and converted (+)-copalyl diphosphate, but not GGPP, into isopimaradiene and pimaradiene as major products. Diterpene profiles and transcriptome sequences of lodgepole pine and jack pine are consistent with roles for these diTPSs in DRA biosynthesis. The monofunctional class I diTPSs of DRA biosynthesis form a new clade within the gymnosperm-specific TPS-d3 subfamily that evolved from bifunctional diTPS rather than monofunctional enzymes (TPS-c and TPS-e) of gibberellin metabolism. Homology modeling suggested alterations in the class I active site that may have contributed to their functional specialization relative to other conifer diTPSs. PMID:23370714

  16. Evolution of conifer diterpene synthases: diterpene resin acid biosynthesis in lodgepole pine and jack pine involves monofunctional and bifunctional diterpene synthases.

    Science.gov (United States)

    Hall, Dawn E; Zerbe, Philipp; Jancsik, Sharon; Quesada, Alfonso Lara; Dullat, Harpreet; Madilao, Lina L; Yuen, Macaire; Bohlmann, Jörg

    2013-02-01

    Diterpene resin acids (DRAs) are major components of pine (Pinus spp.) oleoresin. They play critical roles in conifer defense against insects and pathogens and as a renewable resource for industrial bioproducts. The core structures of DRAs are formed in secondary (i.e. specialized) metabolism via cycloisomerization of geranylgeranyl diphosphate (GGPP) by diterpene synthases (diTPSs). Previously described gymnosperm diTPSs of DRA biosynthesis are bifunctional enzymes that catalyze the initial bicyclization of GGPP followed by rearrangement of a (+)-copalyl diphosphate intermediate at two discrete class II and class I active sites. In contrast, similar diterpenes of gibberellin primary (i.e. general) metabolism are produced by the consecutive activity of two monofunctional class II and class I diTPSs. Using high-throughput transcriptome sequencing, we discovered 11 diTPS from jack pine (Pinus banksiana) and lodgepole pine (Pinus contorta). Three of these were orthologous to known conifer bifunctional levopimaradiene/abietadiene synthases. Surprisingly, two sets of orthologous PbdiTPSs and PcdiTPSs were monofunctional class I enzymes that lacked functional class II active sites and converted (+)-copalyl diphosphate, but not GGPP, into isopimaradiene and pimaradiene as major products. Diterpene profiles and transcriptome sequences of lodgepole pine and jack pine are consistent with roles for these diTPSs in DRA biosynthesis. The monofunctional class I diTPSs of DRA biosynthesis form a new clade within the gymnosperm-specific TPS-d3 subfamily that evolved from bifunctional diTPS rather than monofunctional enzymes (TPS-c and TPS-e) of gibberellin metabolism. Homology modeling suggested alterations in the class I active site that may have contributed to their functional specialization relative to other conifer diTPSs.

  17. Decreased expression of caspase3 in penis and prostate tissues of rat after the treatment with buceng (Pimpinella alpina Molk & Euricoma longifolia Jack

    Directory of Open Access Journals (Sweden)

    Taufiqurrachman Taufiqurrachman

    2013-02-01

    Full Text Available Background: Buceng {combination of pasak bumi (Eurycoma longifolia Jack and purwoceng (Pimpinella alpine Molk} has been proven to increase testosterone (Te level and decrease apoptosis. Unfortunately, there is no evidence whether these effects are mediated by the declining of caspase3. Objective of this study was to evaluate whether buceng could decrease the expression of caspase3 of penis and prostate cells in Sprague Dawley male rats.Methods: Twenty four Sprague Dawley male rats weighing 300 g (90 days old were randomly assigned into 4 groups of 6 male rats. Group A, rats were castrated and received buceng 50 mg. Group B, rats were not castrated, sacrifices as positive control. Group C, rats were castrated and given 2 mL aquadest as negative control. Group D, rats were castrated and got of 6.75 mg mesterolone, dissolved in 2 mL water. MANOVA statistical analysis was adopted to examine the difference expression of caspase3 in all groups. The comparison of caspase3 expression between two groups exhibiting difference values were evaluated by Post Hoc test.Results: MANOVA revealed statistically significant differences in the expression of caspase3 of penis and prostate tissues among the four groups. Post Hoct test also indicated that expression of caspase3 in group A (buceng (33.56; 35.83 was significantly lower compared to group C (negative control (54.33; 60.07 and group D (mesterolone (51.91;56.21, p = 0.000, and higher compared than group B or normal rats (29.40; 27.72, but statistically not significant (p = 0.826.Conclusion: The treatment of 50 mg buceng/day for 30 consecutive days could decrease caspase3 expression in penis and prostate cells. (Med J Indones. 2013;22:2-8Keywords: Apoptosis, buceng (Pimpinella alpine Molk – Eurycoma longifolia Jack, caspase3 

  18. Models for Instruction and Curriculum.

    Science.gov (United States)

    Toth, Elizabeth L.

    1999-01-01

    Proposes three models of course-specific curricula and a content-curriculum model for undergraduate public-relations education, and proposes core and elective areas for a master's of public-relations curriculum. Agrees that public-relations curricula should have a broad liberal arts and science basis, and recommended more attention to ethics,…

  19. Geohydrologic Investigations and Landscape Characteristics of Areas Contributing Water to Springs, the Current River, and Jacks Fork, Ozark National Scenic Riverways, Missouri

    Science.gov (United States)

    Mugel, Douglas N.; Richards, Joseph M.; Schumacher, John G.

    2009-01-01

    The Ozark National Scenic Riverways (ONSR) is a narrow corridor that stretches for approximately 134 miles along the Current River and Jacks Fork in southern Missouri. Most of the water flowing in the Current River and Jacks Fork is discharged to the rivers from springs within the ONSR, and most of the recharge area of these springs is outside the ONSR. This report describes geohydrologic investigations and landscape characteristics of areas contributing water to springs and the Current River and Jacks Fork in the ONSR. The potentiometric-surface map of the study area for 2000-07 shows that the groundwater divide extends beyond the surface-water divide in some places, notably along Logan Creek and the northeastern part of the study area, indicating interbasin transfer of groundwater between surface-water basins. A low hydraulic gradient occurs in much of the upland area west of the Current River associated with areas of high sinkhole density, which indicates the presence of a network of subsurface karst conduits. The results of a low base-flow seepage run indicate that most of the discharge in the Current River and Jacks Fork was from identified springs, and a smaller amount was from tributaries whose discharge probably originated as spring discharge, or from springs or diffuse groundwater discharge in the streambed. Results of a temperature profile conducted on an 85-mile reach of the Current River indicate that the lowest average temperatures were within or downstream from inflows of springs. A mass-balance on heat calculation of the discharge of Bass Rock Spring, a previously undescribed spring, resulted in an estimated discharge of 34.1 cubic feet per second (ft3/s), making it the sixth largest spring in the Current River Basin. The 13 springs in the study area for which recharge areas have been estimated accounted for 82 percent (867 ft3/s of 1,060 ft3/s) of the discharge of the Current River at Big Spring during the 2006 seepage run. Including discharge from

  20. Public Values

    DEFF Research Database (Denmark)

    Beck Jørgensen, Torben; Rutgers, Mark R.

    2015-01-01

    administration is approached in terms of processes guided or restricted by public values and as public value creating: public management and public policy-making are both concerned with establishing, following and realizing public values. To study public values a broad perspective is needed. The article suggest......This article provides the introduction to a symposium on contemporary public values research. It is argued that the contribution to this symposium represent a Public Values Perspective, distinct from other specific lines of research that also use public value as a core concept. Public...... a research agenda for this encompasing kind of public values research. Finally the contributions to the symposium are introduced....

  1. Assessment of readability, understandability, and completeness of pediatric hospital medicine discharge instructions.

    Science.gov (United States)

    Unaka, Ndidi I; Statile, Angela; Haney, Julianne; Beck, Andrew F; Brady, Patrick W; Jerardi, Karen E

    2017-02-01

    The average American adult reads at an 8th-grade level. Discharge instructions written above this level might increase the risk of adverse outcomes for children as they transition from hospital to home. We conducted a cross-sectional study at a large urban academic children's hospital to describe readability levels, understandability scores, and completeness of written instructions given to families at hospital discharge. Two hundred charts for patients discharged from the hospital medicine service were randomly selected for review. Written discharge instructions were extracted and scored for readability (Fry Readability Scale [FRS]), understandability (Patient Education Materials Assessment Tool [PEMAT]), and completeness (5 criteria determined by consensus). Descriptive statistics enumerated the distribution of readability, understandability, and completeness of written discharge instructions. Of the patients included in the study, 51% were publicly insured. Median age was 3.1 years, and median length of stay was 2.0 days. The median readability score corresponded to a 10th-grade reading level (interquartile range, 8-12; range, 1-13). Median PEMAT score was 73% (interquartile range, 64%-82%; range, 45%-100%); 36% of instructions scored below 70%, correlating with suboptimal understandability. The diagnosis was described in only 33% of the instructions. Although explicit warning signs were listed in most instructions, 38% of the instructions did not include information on the person to contact if warning signs developed. Overall, the readability, understandability, and completeness of discharge instructions were subpar. Efforts to improve the content of discharge instructions may promote safe and effective transitions home. Journal of Hospital Medicine 2017;12:98-101. © 2017 Society of Hospital Medicine.

  2. The Effect of a High School Speech Course on Public Speaking Anxiety for Students in a College-Level Public Speaking Class

    Science.gov (United States)

    Johnson, Karen Hill

    2012-01-01

    Literature suggested public speaking is American's most feared activity. Additionally, the public speaking curriculum was removed from the K-12 school system after 2001. This study aimed to examine the effect of previous public speaking instruction, public speaking extra-curricular activity, gender, and self-esteem on public speaking anxiety…

  3. Literacity: A multimedia adult literacy package combining NASA technology, recursive ID theory, and authentic instruction theory

    Science.gov (United States)

    Willis, Jerry; Willis, Dee Anna; Walsh, Clare; Stephens, Elizabeth; Murphy, Timothy; Price, Jerry; Stevens, William; Jackson, Kevin; Villareal, James A.; Way, Bob

    1994-01-01

    An important part of NASA's mission involves the secondary application of its technologies in the public and private sectors. One current application under development is LiteraCity, a simulation-based instructional package for adults who do not have functional reading skills. Using fuzzy logic routines and other technologies developed by NASA's Information Systems Directorate and hypermedia sound, graphics, and animation technologies the project attempts to overcome the limited impact of adult literacy assessment and instruction by involving the adult in an interactive simulation of real-life literacy activities. The project uses a recursive instructional development model and authentic instruction theory. This paper describes one component of a project to design, develop, and produce a series of computer-based, multimedia instructional packages. The packages are being developed for use in adult literacy programs, particularly in correctional education centers. They use the concepts of authentic instruction and authentic assessment to guide development. All the packages to be developed are instructional simulations. The first is a simulation of 'finding a friend a job.'

  4. Improving the Status of Human and Material Resources in Public ...

    African Journals Online (AJOL)

    Nekky Umera

    Public Primary Schools in Oyo States towards Achieving the. Millennium ... projected instructional materials such as computers, counselling centres as well as ... for their children to receive basic education in order to achieve one of the goals of ...

  5. Improving the Status of Human and Material Resources in Public ...

    African Journals Online (AJOL)

    Improving the Status of Human and Material Resources in Public Primary School in Oyo States ... the Millennium Development Goals project in the State. ... libraries, well-equipped first aid centres, adequate electronically projected instructional ...

  6. RELATIONSHIP BETWEEN BILINGUAL INSTRUCTION AND LEARNERS’ PERFORMANCE IN ENGLISH AS SECOND LANGUAGE CONTEXT

    Directory of Open Access Journals (Sweden)

    Huma Imran Khan

    2015-06-01

    Full Text Available The prime purpose of this study was to explore a correlation between bilingual instruction in an ESL class and the class performance of the ESL learners at the secondary level. Quantitative research method was used to evaluate the test performance of 60 ESL learners divided into two groups: One was the controlled group (which was given instructions in L2 only and the other was the treatment group (which was given instructions in both L1 and L2 in Public School settings. Apart from the students, 15 language teachers’ feedback upon their perceptions of L1 usage in L2 classrooms was taken by using the Likert scale feedback forms. The results confirmed that the instructions given bilingually are directly associated to improved learner outcomes and teachers’ responses for the usage of L1 in classrooms showed a strong positive response.

  7. Pedagogical Uses of the Public Goods Concept in Economics.

    Science.gov (United States)

    Kiesling, Herbert J.

    1990-01-01

    Describes some of the relatively unknown aspects of the concept of public goods and shows how they might be brought into undergraduate textbooks in microeconomic principles, public finance, and welfare economics. Illustrates how these aspects of public goods can be brought into undergraduate instruction. (DB)

  8. Fine Arts Standards of Learning for Virginia Public Schools

    Science.gov (United States)

    Virginia Department of Education, 2006

    2006-01-01

    The Fine Arts Standards of Learning in this publication represent a major development in public education in Virginia, emphasizing the importance of instruction in the fine arts (dance arts, music, theatre arts, and visual arts) as an important part of Virginia's efforts to provide challenging educational programs in the public schools. Knowledge…

  9. Improving Lecture Quality through Training in Public Speaking

    Science.gov (United States)

    Mowbray, Robert; Perry, Laura B.

    2015-01-01

    Lecturing is a common instructional format but poor lecturing skills can detract from students' learning experiences and outcomes. As lecturing is essentially a form of public communication, training in public speaking may improve lecture quality. Twelve university lecturers in Malaysia participated in a six-week public speaking skills training…

  10. Graduates perception towards instructional methods of emergency ...

    African Journals Online (AJOL)

    Graduates perception towards instructional methods of emergency medicine: affecting their self-confidence in emergency departments. Mohamed Daffalla Awadalla, Ahmed Abd Elrahman Abdalla, Sami Mahjoub Taha ...

  11. The Multimodal Possibilities of Online Instructions

    DEFF Research Database (Denmark)

    Kampf, Constance

    2006-01-01

    The WWW simplifies the process of delivering online instructions through multimodal channels because of the ease of use for voice, video, pictures, and text modes of communication built into it.  Given that instructions are being produced in multimodal format for the WWW, how do multi-modal analy......The WWW simplifies the process of delivering online instructions through multimodal channels because of the ease of use for voice, video, pictures, and text modes of communication built into it.  Given that instructions are being produced in multimodal format for the WWW, how do multi...

  12. Review of Instructional Approaches in Ethics Education.

    Science.gov (United States)

    Mulhearn, Tyler J; Steele, Logan M; Watts, Logan L; Medeiros, Kelsey E; Mumford, Michael D; Connelly, Shane

    2017-06-01

    Increased investment in ethics education has prompted a variety of instructional objectives and frameworks. Yet, no systematic procedure to classify these varying instructional approaches has been attempted. In the present study, a quantitative clustering procedure was conducted to derive a typology of instruction in ethics education. In total, 330 ethics training programs were included in the cluster analysis. The training programs were appraised with respect to four instructional categories including instructional content, processes, delivery methods, and activities. Eight instructional approaches were identified through this clustering procedure, and these instructional approaches showed different levels of effectiveness. Instructional effectiveness was assessed based on one of nine commonly used ethics criteria. With respect to specific training types, Professional Decision Processes Training (d = 0.50) and Field-Specific Compliance Training (d = 0.46) appear to be viable approaches to ethics training based on Cohen's d effect size estimates. By contrast, two commonly used approaches, General Discussion Training (d = 0.31) and Norm Adherence Training (d = 0.37), were found to be considerably less effective. The implications for instruction in ethics training are discussed.

  13. Tutorial Instruction in Science Education

    Directory of Open Access Journals (Sweden)

    Rhea Miles

    2015-06-01

    Full Text Available The purpose of the study is to examine the tutorial practices of in-service teachers to address the underachievement in the science education of K-12 students. Method: In-service teachers in Virginia and North Carolina were given a survey questionnaire to examine how they tutored students who were in need of additional instruction. Results: When these teachers were asked, “How do you describe a typical one-on-one science tutorial session?” the majority of their responses were categorized as teacher-directed. Many of the teachers would provide a science tutorial session for a student after school for 16-30 minutes, one to three times a week. Respondents also indicated they would rely on technology, peer tutoring, scientific inquiry, or themselves for one-on-one science instruction. Over half of the in-service teachers that responded to the questionnaire stated that they would never rely on outside assistance, such as a family member or an after school program to provide tutorial services in science. Additionally, very few reported that they incorporated the ethnicity, culture, or the native language of ELL students into their science tutoring sessions.

  14. Learning from Narrated Instruction Videos.

    Science.gov (United States)

    Alayrac, Jean-Baptiste; Bojanowski, Piotr; Agrawal, Nishant; Sivic, Josef; Laptev, Ivan; Lacoste-Julien, Simon

    2017-09-05

    Automatic assistants could guide a person or a robot in performing new tasks, such as changing a car tire or repotting a plant. Creating such assistants, however, is non-trivial and requires understanding of visual and verbal content of a video. Towards this goal, we here address the problem of automatically learning the main steps of a task from a set of narrated instruction videos. We develop a new unsupervised learning approach that takes advantage of the complementary nature of the input video and the associated narration. The method sequentially clusters textual and visual representations of a task, where the two clustering problems are linked by joint constraints to obtain a single coherent sequence of steps in both modalities. To evaluate our method, we collect and annotate a new challenging dataset of real-world instruction videos from the Internet. The dataset contains videos for five different tasks with complex interactions between people and objects, captured in a variety of indoor and outdoor settings. We experimentally demonstrate that the proposed method can automatically discover, learn and localize the main steps of a task input videos.

  15. Elementary Students' Retention of Environmental Science Knowledge: Connected Science Instruction versus Direct Instruction

    Science.gov (United States)

    Upadhyay, Bhaskar; DeFranco, Cristina

    2008-01-01

    This study compares 3rd-grade elementary students' gain and retention of science vocabulary over time in two different classes--"connected science instruction" versus "direct instruction." Data analysis yielded that students who received connected science instruction showed less gain in science knowledge in the short term compared to students who…

  16. Instructed Pragmatics at a Glance: Where Instructional Studies Were, Are, and Should Be Going

    Science.gov (United States)

    Taguchi, Naoko

    2015-01-01

    This paper brings together the research and developments of instructed pragmatics over the past three decades by reporting the synthesis findings of instructional intervention studies in interlanguage pragmatics. Two questions have guided this investigation: (1) is instruction effective in learning pragmatics?; and (2) what methods are most…

  17. Public lighting.

    NARCIS (Netherlands)

    Schreuder, D.A.

    1986-01-01

    The function of public lighting and the relationship between public lighting and accidents are considered briefly as aspects of effective countermeasures. Research needs and recent developments in installation and operational described. Public lighting is an efficient accident countermeasure, but

  18. Instructable autonomous agents. Ph.D. Thesis

    Science.gov (United States)

    Huffman, Scott Bradley

    1994-01-01

    In contrast to current intelligent systems, which must be laboriously programmed for each task they are meant to perform, instructable agents can be taught new tasks and associated knowledge. This thesis presents a general theory of learning from tutorial instruction and its use to produce an instructable agent. Tutorial instruction is a particularly powerful form of instruction, because it allows the instructor to communicate whatever kind of knowledge a student needs at whatever point it is needed. To exploit this broad flexibility, however, a tutorable agent must support a full range of interaction with its instructor to learn a full range of knowledge. Thus, unlike most machine learning tasks, which target deep learning of a single kind of knowledge from a single kind of input, tutorability requires a breadth of learning from a broad range of instructional interactions. The theory of learning from tutorial instruction presented here has two parts. First, a computational model of an intelligent agent, the problem space computational model, indicates the types of knowledge that determine an agent's performance, and thus, that should be acquirable via instruction. Second, a learning technique, called situated explanation specifies how the agent learns general knowledge from instruction. The theory is embodied by an implemented agent, Instructo-Soar, built within the Soar architecture. Instructo-Soar is able to learn hierarchies of completely new tasks, to extend task knowledge to apply in new situations, and in fact to acquire every type of knowledge it uses during task performance - control knowledge, knowledge of operators' effects, state inferences, etc. - from interactive natural language instructions. This variety of learning occurs by applying the situated explanation technique to a variety of instructional interactions involving a variety of types of instructions (commands, statements, conditionals, etc.). By taking seriously the requirements of flexible

  19. Effects of Instruction and Stage-Fright on Intelligence Testing

    Science.gov (United States)

    Meijer, Joost; Oostdam, Ron

    2011-01-01

    In the present research, it was tried to unravel the influence of various types of instruction on test anxiety levels and, in turn, its influence on intelligence test performance. Three types of instruction were compared: a stressful, achievement-orientated instruction; a reassuring, task-orientated instruction; and an ambiguous instruction.…

  20. Increased air temperature during simulated autumn conditions does not increase photosynthetic carbon gain but affects the dissipation of excess energy in seedlings of the evergreen conifer Jack pine.

    Science.gov (United States)

    Busch, Florian; Hüner, Norman P A; Ensminger, Ingo

    2007-03-01

    Temperature and daylength act as environmental signals that determine the length of the growing season in boreal evergreen conifers. Climate change might affect the seasonal development of these trees, as they will experience naturally decreasing daylength during autumn, while at the same time warmer air temperature will maintain photosynthesis and respiration. We characterized the down-regulation of photosynthetic gas exchange and the mechanisms involved in the dissipation of energy in Jack pine (Pinus banksiana) in controlled environments during a simulated summer-autumn transition under natural conditions and conditions with altered air temperature and photoperiod. Using a factorial design, we dissected the effects of daylength and temperature. Control plants were grown at either warm summer conditions with 16-h photoperiod and 22 degrees C or conditions representing a cool autumn with 8 h/7 degrees C. To assess the impact of photoperiod and temperature on photosynthesis and energy dissipation, plants were also grown under either cold summer (16-h photoperiod/7 degrees C) or warm autumn conditions (8-h photoperiod/22 degrees C). Photosynthetic gas exchange was affected by both daylength and temperature. Assimilation and respiration rates under warm autumn conditions were only about one-half of the summer values but were similar to values obtained for cold summer and natural autumn treatments. In contrast, photosynthetic efficiency was largely determined by temperature but not by daylength. Plants of different treatments followed different strategies for dissipating excess energy. Whereas in the warm summer treatment safe dissipation of excess energy was facilitated via zeaxanthin, in all other treatments dissipation of excess energy was facilitated predominantly via increased aggregation of the light-harvesting complex of photosystem II. These differences were accompanied by a lower deepoxidation state and larger amounts of beta-carotene in the warm autumn

  1. Pre-STS-3 press conference held at the JSC public affairs facility

    Science.gov (United States)

    1982-01-01

    Astronauts Jack R. Lousma, center, and C. Gordon Fullerton, left, respond to a visual display of the Columbia and its remote manipulator system in space during a pre-STS-3 press conference. Dr. John Lawrence, public information specialist, is at the far right (25903); Astronaut Lousma, listens as a newsman directs a question his way. In the background is the STS-3 mission logo (25904); Astronaut Fullerton uses an electronic pointer to localize an area on a prjected visual of the OSS payload package to be carried in the cargo bay of the Columbia on STS-3. On far right is Dr. Lawrence (25905).

  2. An evaluation of the California Instructional School Garden Program.

    Science.gov (United States)

    Hazzard, Eric L; Moreno, Elizabeth; Beall, Deborah L; Zidenberg-Cherr, Sheri

    2012-02-01

    California Assembly Bill 1535 awarded $US 15 million to California public schools to promote, develop and sustain instructional school gardens through the California Instructional School Garden Program (CISGP). The present study was designed to assess the effectiveness of the CISGP at assisting schools in implementing, maintaining and sustaining an academic school garden programme, determine how schools utilized the funding they received and assess the impact of the California state budget crisis on the CISGP. A mid-term evaluation was used to assess the degree to which schools achieved their instructional garden-related goals. California. Only schools that applied for the CIGSP grant as part of a school district and also provided a contact email and had a unique contact person were included in the study (n 3103, 80·6 %). In general, many schools reported not achieving their predicted goals with regard to the CISGP grant. Only 39·4 % of schools reported accomplishing all of their garden-related goals. Over one-third (37·8 %) of schools reported that their school gardens were negatively affected by the California budget deficit. The difference between predicted and actual utilization of the CISGP grants may be due to a combination of the effects of budget shortfall and insufficiency of the grant award amount.

  3. Do Differences in School's Instruction Time Explain International Achievement Gaps in Maths, Science and Language? Evidence from Developed and Developing Countries. CEE DP 118

    Science.gov (United States)

    Lavy, Victor

    2010-01-01

    There are large differences across countries in instructional time in public schooling institutions. For example, among European countries such as Belgium, France and Greece, pupils aged 15 have an average of over a thousand hours per year of total compulsory classroom instruction while in England, Luxembourg and Sweden the average is only 750…

  4. Investigating the Effects of Computer-Assisted Instruction on Achievement and Attitudes towards Mathematics among Seventh-Grade Students in Kuwait

    Science.gov (United States)

    Soliman, Mamdouh M.; Hilal, Ahmed J.

    2016-01-01

    This study evaluates the effectiveness of Computer-Assisted Instruction (CAI) compared with traditional classroom instruction of mathematics of seventh graders in Kuwait's public schools. We aimed to compare students learning outcomes between two groups: the control group, taught traditionally without the use of computers, and the experimental…

  5. Using Informal Classroom Observations to Improve Instruction

    Science.gov (United States)

    Ing, Marsha

    2010-01-01

    Purpose: The purpose of this study is to describe the variability of principals' classroom observations across schools and to relate classroom observations to the schools' instructional climate. This helps identify the conditions under which classroom observations effectively improve instruction in some schools and not in other schools.…

  6. Instructional Technology in Brazil: A Status Report

    Science.gov (United States)

    Saettler, Paul

    1973-01-01

    A status report on the evolving conceptions of instructional technology and current applications in Brazil. A complementary purpose is to summarize those conditions which vitally influence the general characteristics of the Brazilian educational system and the nature of instructional technology in this major developing country of the world.…

  7. A Taxonomy of Asynchronous Instructional Video Styles

    Science.gov (United States)

    Chorianopoulos, Konstantinos

    2018-01-01

    Many educational organizations are employing instructional videos in their pedagogy, but there is a limited understanding of the possible video formats. In practice, the presentation format of instructional videos ranges from direct recording of classroom teaching with a stationary camera, or screencasts with voiceover, to highly elaborate video…

  8. Self-Paced Instruction: Hello, Education

    Science.gov (United States)

    Leuba, Richard J.; Flammer, Gordon H.

    1975-01-01

    Answers criticisms of self-paced instruction (SPI) by citing advantages of SPI over lecture methods. Concludes that criticisms of SPI are useful since they indicate in which areas further research should be conducted to improve this method of instruction. (MLH)

  9. Using Blogs to Improve Differentiated Instruction

    Science.gov (United States)

    Colombo, Michaela W.; Colombo, Paul D.

    2007-01-01

    The authors discuss how the instructional impact of science teachers can be extended by using blogs, a technology popular among students that allows teachers to differentiate their instruction for students with diverse needs. Software now makes it easy for teachers to establish class blogs, Web sites that contain text, audio, and video postings on…

  10. Making the Most of Instructional Coaches

    Science.gov (United States)

    Kane, Britnie Delinger; Rosenquist, Brooks

    2018-01-01

    Although coaching holds great promise for professional development, instructional coaches are often asked to take on responsibilities that are not focused on improving instruction. The authors discuss a quantitative study of four school districts and a qualitative analysis of a single district that, together, reveal how hiring practices and school…

  11. Classroom Instruction: The Influences of Marie Clay

    Science.gov (United States)

    McNaughton, Stuart

    2014-01-01

    Marie Clay's body of work has influenced classroom instruction in direct and indirect ways, through large overarching themes in our pedagogical content knowledge as well as specific smart practices. This paper focuses on her the contributions to our thinking about instruction which come from two broad theoretical concepts; emergent literacy…

  12. Thread extraction for polyadic instruction sequences

    NARCIS (Netherlands)

    Bergstra, J.; Middelburg, C.

    2011-01-01

    In this paper, we study the phenomenon that instruction sequences are split into fragments which somehow produce a joint behaviour. In order to bring this phenomenon better into the picture, we formalize a simple mechanism by which several instruction sequence fragments can produce a joint

  13. Understanding instructions for oral rehydration therapy.

    Science.gov (United States)

    Eisemon, T O; Patel, V L

    1989-01-01

    Oral rehydration mixtures are readily available in rural Kenya, but the instructions that accompany them are not always clear. Mothers will understand such instructions more readily if they explain the principles of oral rehydration and describe in a logical way the sequence of procedures to be followed.

  14. Implicit and Explicit Instruction of Spelling Rules

    Science.gov (United States)

    Kemper, M. J.; Verhoeven, L.; Bosman, A. M. T.

    2012-01-01

    The study aimed to compare the differential effectiveness of explicit and implicit instruction of two Dutch spelling rules. Students with and without spelling disabilities were instructed a spelling rule either implicitly or explicitly in two experiments. Effects were tested in a pretest-intervention-posttest control group design. Experiment 1…

  15. 25 CFR 67.15 - Special instructions.

    Science.gov (United States)

    2010-04-01

    ... Area Director, the Assistant Secretary may issue special instructions not inconsistent with the... 25 Indians 1 2010-04-01 2010-04-01 false Special instructions. 67.15 Section 67.15 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR TRIBAL GOVERNMENT PREPARATION OF A ROLL OF INDEPENDENT...

  16. 25 CFR 61.15 - Special instructions.

    Science.gov (United States)

    2010-04-01

    ... Secretary may issue special instructions not inconsistent with the regulations in this part 61. ... 25 Indians 1 2010-04-01 2010-04-01 false Special instructions. 61.15 Section 61.15 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR TRIBAL GOVERNMENT PREPARATION OF ROLLS OF INDIANS § 61...

  17. How Instructional Systems Will Manage Learning

    Science.gov (United States)

    Flanagan, John C.

    1970-01-01

    Discusses trends toward the systems approach in education including the development of effective instructional systems in government and industry; the introduction of teaching machines, programed learning, and computer- assisted instruction; and the increase in both the amount and sophistication of educational research and development. (JF)

  18. Modelling Web-Based Instructional Systems

    NARCIS (Netherlands)

    Retalis, Symeon; Avgeriou, Paris

    2002-01-01

    The size and complexity of modern instructional systems, which are based on the World Wide Web, bring about great intricacy in their crafting, as there is not enough knowledge or experience in this field. This imposes the use of new instructional design models in order to achieve risk-mitigation,

  19. Instructional Leadership in Elementary School Science

    Science.gov (United States)

    Sherman, Ann; MacDonald, Leo

    2008-01-01

    Instructional leadership is internationally recognized as being a key role for school administrators to advance in their relationships with teachers. But what happens when a principal lacks content knowledge or specific pedagogical knowledge about certain curriculum areas? How do administrators support instructional practices of teachers who teach…

  20. Categories for Observing Language Arts Instruction (COLAI).

    Science.gov (United States)

    Benterud, Julianna G.

    Designed to study individual use of time spent in reading during regularly scheduled language arts instruction in a natural classroom setting, this coding sheet consists of nine categories: (1) engagement, (2) area of language arts, (3) instructional setting, (4) partner (teacher or pupil(s)), (5) source of content, (6) type of unit, (7) assigned…