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1

Algebra at the Tertiary Level.  

ERIC Educational Resources Information Center

Presents a summary report of the Algebra Working Group's discussion subgroup on tertiary algebra at the Seventh International Conference on Mathematical Education held in Quebec City, Canada in August 1992. (MKR)

Barbeau, Edward

1995-01-01

2

CAL-laborate: A Collaborative Publication on the Use of Computer Aided Learning for Tertiary Level Physical Sciences and Geosciences.  

ERIC Educational Resources Information Center

The science community has been trying to use computers in teaching for many years. There has been much conformity in how this was to be achieved, and the wheel has been re-invented again and again as enthusiast after enthusiast has "done their bit" towards getting computers accepted. Computers are now used by science undergraduates (as well as…

Fernandez, Anne, Ed.; Sproats, Lee, Ed.; Sorensen, Stacey, Ed.

2000-01-01

3

Testing for Student Selection at Tertiary Level: A Literature Review. Tertiary Education Entrance Project.  

ERIC Educational Resources Information Center

The problems associated with the transition from the secondary level to the tertiary level in education have given rise to many surveys, analyses of statistics, research projects, reports and literature reviews. Much has been written on topics such as testing, selection, prediction and wastage, with findings and conclusions which appear to have…

McDonnell, W.

4

The Number of Life Science Graduates from Australian Tertiary Institutions.  

ERIC Educational Resources Information Center

This survey sought to determine if, from 1968-77, the number of college graduates in the life sciences corresponds with the enrollment growth in biology at the secondary level. Results are considered for the fields of agriculture, biological sciences, and health care/therapy. Implications for course offerings are discussed. (Author/SJL)

Stern, W.; Burchett, M.

1979-01-01

5

Co-operation in Environmental Education at the Tertiary Level in the Asia-Pacific Region.  

ERIC Educational Resources Information Center

Analyzes the co-operation in environmental education at the tertiary level with regard to sub-regions, which include North-East Asia, South-East Asia, South Asia, and the South Pacific. (Contains 17 references.) (YDS)

Sato, Masahisa; Bhandari, Bishnu; Abe, Osamu

2001-01-01

6

The Delivery System of Environmental Education at the Tertiary Level in the Asia-Pacific Region.  

ERIC Educational Resources Information Center

Analyzes the delivery system of environmental education at the tertiary level in relation to higher education attendance rate. Describes the characteristics of the delivery system in countries such as China, India, Australia, Japan, South Korea, and Indonesia. (Author/MM)

Sato, Masahisa; Bhandari, Bishnu; Abe, Osamu

2001-01-01

7

HIGH LEVELS OF MONOAROMATIC COMPOUNDS LIMIT THE USE OF SOLID-PHASE MICROEXTRACTION OF METHYL TERTIARY BUTYL ETHER AND TERTIARY BUTYL ALCOHOL  

EPA Science Inventory

Recently, two papers reported the use of solid-phase microextraction (SPME) with polydimethylsiloxane(PDMS)/Carboxen fibers to determine trace levels of methyl tertiary butyl ether (MTBE) and tertiary butyl alcohol (tBA) in water. Attempts were made to apply this technique to th...

8

An Integrated Skills Approach Using Feature Movies in EFL at Tertiary Level  

ERIC Educational Resources Information Center

This paper presents the results of a case study based on an integrated skills approach using feature movies (DVDs) in EFL syllabi at the tertiary level. 100 students took part in the study and the data was collected through a three - section survey questionnaire: demographic items, 18 likert scale questions and an open-ended question. The data…

Tuncay, Hidayet

2014-01-01

9

Second Language Teacher Education at the Tertiary Level: A Pressing Issue in Canada  

Microsoft Academic Search

The knowledge base required by ESL teachers at the tertiary level in Canada is particularly specific to that field. By looking at pre-service preparation programs and in-service professional development (PD), this paper identifies the difficulties encountered when attempting to provide PD that meets the needs of all practitioners in such a diverse field. In particular it points out the importance

Jasmine Chafe; Hong Wang

2008-01-01

10

Issues of teaching science to nurses in the tertiary sector  

NASA Astrophysics Data System (ADS)

The shift of nurse education from the hospitals to higher education institutions has resulted in a large pool of students within the Universities requiring basic science instruction. Most of these students are female, often mature age, with limited science backgrounds. This paper discusses the type of science education demanded by the nursing profession, the view of science as a subject held by these students, and the key role played by constructivist thinking in dealing with both of these.

Strube, Paul

1991-12-01

11

Emotions or Science? Pre-Tertiary Males' Accounts of Psychology as a Subject Choice  

ERIC Educational Resources Information Center

It is well established that the number of males studying psychology in the UK, both at A-level and on degree courses, is disproportionately low compared to females. There is a paucity of research, however, which discusses how psychology is viewed by this group. The present study employed focus groups with 35 pre-tertiary males (some of whom were…

Mercer, Jenny; Sander, Paul; Williams, Stella; Jones, Tim

2013-01-01

12

Attitudes toward science among Australian tertiary and secondary school students  

Microsoft Academic Search

The main purpose of this study was to investigate the factors that might be associated with students’ attitudes towards science. The participants were 1745 students from secondary schools and universities across Australia. The results of factor analysis, descriptive statistics, Tukey’s post hoc test and correlation analysis demonstrate that there were statistically significant differences between male and female students. Finally, the

Ghali Hassan

2008-01-01

13

Customer Satisfaction Survey With Clinical Laboratory and Phlebotomy Services at a Tertiary Care Unit Level  

PubMed Central

We performed customer satisfaction surveys for physicians and nurses regarding clinical laboratory services, and for outpatients who used phlebotomy services at a tertiary care unit level to evaluate our clinical laboratory and phlebotomy services. Thus, we wish to share our experiences with the customer satisfaction survey for clinical laboratory and phlebotomy services. Board members of our laboratory designed a study procedure and study population, and developed two types of questionnaire. A satisfaction survey for clinical laboratory services was conducted with 370 physicians and 125 nurses by using an online or paper questionnaire. The satisfaction survey for phlebotomy services was performed with 347 outpatients who received phlebotomy services by using computer-aided interviews. Mean satisfaction scores of physicians and nurses was 58.1, while outpatients' satisfaction score was 70.5. We identified several dissatisfactions with our clinical laboratory and phlebotomy services. First, physicians and nurses were most dissatisfied with the specimen collection and delivery process. Second, physicians and nurses were dissatisfied with phlebotomy services. Third, molecular genetic and cytogenetic tests were found more expensive than other tests. This study is significant in that it describes the first reference survey that offers a survey procedure and questionnaire to assess customer satisfaction with clinical laboratory and phlebotomy services at a tertiary care unit level. PMID:25187892

Koh, Young Rae; Kim, Shine Young; Kim, In Suk; Chang, Chulhun L.; Lee, Eun Yup; Son, Han Chul

2014-01-01

14

Customer satisfaction survey with clinical laboratory and phlebotomy services at a tertiary care unit level.  

PubMed

We performed customer satisfaction surveys for physicians and nurses regarding clinical laboratory services, and for outpatients who used phlebotomy services at a tertiary care unit level to evaluate our clinical laboratory and phlebotomy services. Thus, we wish to share our experiences with the customer satisfaction survey for clinical laboratory and phlebotomy services. Board members of our laboratory designed a study procedure and study population, and developed two types of questionnaire. A satisfaction survey for clinical laboratory services was conducted with 370 physicians and 125 nurses by using an online or paper questionnaire. The satisfaction survey for phlebotomy services was performed with 347 outpatients who received phlebotomy services by using computer-aided interviews. Mean satisfaction scores of physicians and nurses was 58.1, while outpatients' satisfaction score was 70.5. We identified several dissatisfactions with our clinical laboratory and phlebotomy services. First, physicians and nurses were most dissatisfied with the specimen collection and delivery process. Second, physicians and nurses were dissatisfied with phlebotomy services. Third, molecular genetic and cytogenetic tests were found more expensive than other tests. This study is significant in that it describes the first reference survey that offers a survey procedure and questionnaire to assess customer satisfaction with clinical laboratory and phlebotomy services at a tertiary care unit level. PMID:25187892

Koh, Young Rae; Kim, Shine Young; Kim, In Suk; Chang, Chulhun L; Lee, Eun Yup; Son, Han Chul; Kim, Hyung Hoi

2014-09-01

15

Leprosy Scenario at a Tertiary Level Hospital in Delhi: A 5-year Retrospective Study  

PubMed Central

Background: Leprosy has been officially eliminated from India since December, 2005; still, there are districts and blocks reporting high prevalence indicating ongoing transmission. The present study aimed at determining the current clinical profile of leprosy from a tertiary level hospital in Delhi. Materials and Methods: A retrospective, record-based study was carried out on patients diagnosed and registered in the leprosy clinic of a tertiary level teaching hospital in East district of Delhi (April 2007 to March 2012). Data regarding demographic details, clinical features, treatment started and complications was analyzed. Results: A total of 849 patients were registered over a 5-year period, with M: F ratio of 2.3:1. 9.3% were children (?14 years). 54.3% patients were immigrants from adjoining states. Multibacillary leprosy was the most common clinical type (86.9%). Borderline tuberculoid leprosy was the most frequent morphologic type, seen in 56.3% followed by borderline-borderline (1.5%), borderline lepromatous (24.9%), lepromatous leprosy (8.1%), pure neuritic (8.1%), histoid and indeterminate leprosy (0.5% each). 37.4% patients presented in reaction (Type I in 30.4% cases and Type II in 7% cases). WHO grade II deformities were diagnosed in 37.9% with claw hand being the most common paralytic deformity (23.3% cases). Conclusion: Our study offers insight into the current status of the disease in an area of otherwise low prevalence. It is seen that despite statistical elimination, multibacillary disease, leprosy reactions and deformities are commonly seen as presenting manifestations, in contrast to national projected trends. Delhi's unique demography with a high degree of migrant workers, presenting to our center (near border location) could be a possible contributing factor towards these aberrations. It highlights the need for continuation of targeted leprosy control activities and active case detection.

Chhabra, Namrata; Grover, Chander; Singal, Archana; Bhattacharya, Sambit Nath; Kaur, Ramandeep

2015-01-01

16

Dinoflagellate and calcareous nannofossil response to sea-level change in Cretaceous-Tertiary boundary sections  

SciTech Connect

Stratigraphic sections in south-central Alabama were studied to test palynological evidence of sea-level change across the Cretaceous-Tertiary boundary. New evidence from both calcareous nannofossils and dinoflagellate cysts places the regional disconformity in Alabama (Type 1 sequence boundary) virtually at the K-T boundary. This suggests that sea-level fall may have contributed to mass-extinction event. Dinoflagellate diversity varies between systems tract components of coastal onlap. This parameter is useful for interpreting sea-level change in this part of the section, because dinoflagellates did not participate in the mass extinction. The iridium spikes in the roadcut near Braggs are of earliest Danian age and correlate in relative magnitude with the lower values reported from directly above the K-T boundary in the Gubbio stratotype section. Iridium was concentrated in marine flooding surfaces in episodes of higher productivity of algal organic matter at the time when the iridium-enriched ocean encroached on the shelf during the first Cenozoic episode of sea-level rise.

Habib, D. (City Univ. of New York, Flushing (United States)); Moshkovitz, S. (Geological Survey of Israel, Jerusalem (Israel)); Kramer, C. (Hamilton College, Clinton, NY (United States))

1992-02-01

17

A Changing Paradigm in Language Planning: English-Medium Instruction Policy at the Tertiary Level in Malaysia  

ERIC Educational Resources Information Center

The literature shows that English-medium instruction (EMI) programmes at the tertiary level in various parts of the world have positioned EMI as a language-planning tool to promote students' mastery of English. English proficiency is believed to be intertwined with the overall economic development of a country. In addition to internationalising…

Ali, Nor Liza

2013-01-01

18

Effect of Constructivist-Based Teaching Strategy on Academic Performance of Students in Integrated Science at the Junior Secondary School Level  

ERIC Educational Resources Information Center

Integrated science plays vital role in Nigerian science education programme because it prepares pupils at the Junior Secondary School level for the study of core science subjects at the Senior Secondary School level which in turn brings about students' interest in science oriented courses at the tertiary institutions. Despite government's efforts…

Bimbola, Oludipe; Daniel, Oludipe I.

2010-01-01

19

Outcomes of the Evidence-Based Pitocin Administration Checklist at a Tertiary-Level Hospital.  

PubMed

Pitocin, a synthetic form of the hormone oxytocin, is a high-alert medication that heightens patient harm when used incorrectly. This investigation examined the outcomes of an evidence-based Pitocin administration checklist used for labor augmentation at a tertiary-level hospital. Data came from patient records. Using the Perinatal Trigger Tool, N = 372 clinical records (n = 194 prior to and n = 178 following checklist implementation) were reviewed. Checklist implementation resulted in statistically significant reductions in the duration of hospitalization (1.72 vs. 2.02 days, p = .0005), presence of meconium (23.7% vs. 6.7%, p < .001), maternal fevers (7.2% vs. 2.3%, p = .030), and episiotomies (8.8% vs. 1.7%, p = .002), and clinically important reduction in APGAR scores < 7 at 5 min (3.6%-0.6%, p = .069) and instrumented deliveries (11.9%-8.4%, p = .307). A universal Pitocin checklist implementation can improve birth outcomes and costs of care. PMID:24347308

Wojnar, Danuta M; Cowgill, Karen; Hoffman, Lindsay; Carlson, Hannah

2013-12-16

20

Population and colony-level determinants of tertiary sex ratio in the declining barn swallow.  

PubMed

Sex ratio of adults (tertiary sex ratio, TSR) is a major feature of animal populations with consequences for their behaviour, genetic structure and viability. Spatial and temporal variation in TSR occurs within species but the mechanisms behind it are poorly understood. In this long-term study of a declining population of a socially monogamous, colonial, migratory bird, the barn swallow (Hirundo rustica), we first analyzed population-level variation in TSR (?=? proportion of males) of yearlings at sexual maturation in relation to ecological conditions as gauged by annual survival rate of adults. TSR was male-biased both among yearlings and older individuals, but male bias of yearlings was more pronounced after years with larger decline in adult survival. Thus, male offspring were less susceptible to the adverse ecological conditions that cause increased mortality. Dispersal and settling site decisions can have major consequences on fitness via the effects of local TSR on mating and sperm competition. Breeding barn swallows are highly philopatric while natal dispersal is high and, together with mortality, is the main determinant of colony TSR. We thus also investigated the mechanisms of breeding colony choice by yearlings and found that TSR of new-settlers in a given colony and year was negatively predicted by TSR of returning, early arriving older individuals in that year, but not by overall TSR at the colony in the previous year. This suggests that in our male-biased population new-settler males respond to local TSR upon arrival to choose the sites with larger breeding opportunities. Hence, variation in ecological conditions as reflected by adult survival can shift the TSR of individuals recruiting into a local population, with potentially various demographic consequences. However, breeding site choice based on TSR tends to homogenize TSR at a population level likely by facilitating settling of dispersing males in colonies with less male-biased TSR. PMID:23418577

Saino, Nicola; Romano, Maria; Rubolini, Diego; Caprioli, Manuela; Ambrosini, Roberto; Boncoraglio, Giuseppe; Canova, Luca

2013-01-01

21

Awhina: A Programme for Maori and Pacific Tertiary Science Graduate and Postgraduate Success  

ERIC Educational Resources Information Center

In New Zealand, Maori (indigenous New Zealanders) and Pacific students tend not to attain the same levels of educational success as Pakeha (New Zealanders of European descent). Addressing this problem is a particular challenge in the sciences. The kaupapa (values-base) of Te Ropu Awhina (Awhina) is to produce Maori and Pacific professionals to…

Wilson, Marc; Hunt, Maree; Richardson, Liz; Phillips, Hazel; Richardson, Ken; Challies, Danna

2011-01-01

22

Level 1 2013/14 Sports Science  

E-print Network

Level 1 2013/14 Sports Science BSc Sports Science[C600] Coordinator: Dr. RM Bracken Semester 1 Methods in Sports Science 20 Credits Dr. IW Griffiths/Mrs. L Mason Total 120 Credits #12;EG-168 Scientific Bertoncello/Dr. MR Brown/Dr. L Li/... SR-115 Sports Psychology 1 10 Credits Dr. CJ Knight SR-112 Human

Harman, Neal.A.

23

Biostratigraphic, chronostratigraphic, and stratigraphic sequence analysis of Lower Tertiary marine sediments of Alabama for indicators of sea-level change  

SciTech Connect

Early Eocene to late Oligocene marine sedimentary units in southwestern Alabama were sampled at closely spaced intervals to derive a precise time-stratigraphic framework and to determine the paleoecological and mineralogical responses to fluctuations in sea level. Paleontologic control consisted of planktonic, smaller and larger benthonic foraminifera, calcareous nannofossils, dinoflagellates, and megafossils. Paleomagnetic reversals were delineated in two boreholes which, when supplemented by strontium isotope dates and the biostratigraphic control, provided a robust in situ chronostratigraphy for the Gulf Coast lower Tertiary. Paleoecologic trends in regression and transgression can be clearly correlated across major regional facies changes. Using the chronostratigraphy developed here, the second-, third-, and fourth-orders of Vail's global sea-level cycles can be recognized and demonstrate the influence of sea-level change on sedimentation. Stratigraphic systems tracts (SSTs) and bounding surfaces in outcrop were determined by lithologic variations and paleoecologic trends, and additionally by gamma logs in the cores. The lower sequence boundary occurs at a contact where an older, relatively fine-grained, deep-water, fossiliferous unit was abruptly succeeded by a coarse-grained, shallow-water, poorly fossiliferous unit. The transgressive surface occurs at the base of a fining- and deepening-upwards unit that was commonly glauconitic and very fossiliferous. Transgression culminated with a pulse of planktonic microfossils in a bed having reduced clastic sedimentation; on the log the surface of maximum starvation was marked by a gamma spike.

Thompson, P.R. (ARCO Oil and Gas Co., Plano, TX (United States)); Baum, G.R. (ARCO Alaska, Inc., Anchorage (United States))

1991-03-01

24

Research and Innovation in Physics Education: Transforming Classrooms, Teaching, and Student Learning at the Tertiary Level  

NASA Astrophysics Data System (ADS)

It is well recognized that science and technology and the quality of scientifically trained manpower crucially determines the development and economic growth of nations and the future of humankind. At the same time, there is growing global concern about flight of talent from physics in particular, and the need to make physics teaching and learning effective and careers in physics attractive. This presentation presents the findings of seminal physics education research on students' learning that are impacting global praxis and motivating changes in content, context, instruments, and ways of teaching and learning physics, focusing on active learning environments that integrate the use of a variety of resources to create experiences that are both hands-on and minds-on. Initiatives to bring about innovative changes in a university system are described, including a triadic model that entails indigenous development of PHYSARE using low-cost technologies. Transfer of pedagogic innovations into the formal classroom is facilitated by professional development programs that provide experiential learning of research-based innovative teaching practices, catalyze the process of reflection through classroom research, and establish a collaborative network of teachers empowered to usher radical transformation.

Jolly, Pratibha

2009-04-01

25

A single center multioperator initial experience of 4195 patients at a primary radial intervention program in a tertiary level center  

PubMed Central

Background There has been an increase the acceptability and the number of the procedures via the radial approach. We present our experience pertaining to the clinical characteristics, procedural details and post procedural outcome of patients undergoing radial artery access, coronary angiographies over a period of 4 years at a primary care tertiary level center. Materials and methods A retrospective analysis of all the coronary artery procedures during the last 4 years was done and the various parameters related to these procedures noted. Results In 4195 procedures performed, success in radial artery procedures was achieved in 3975 (94.8%) procedures. The average puncture time and total procedure time was 9.5 + 3 min (min) and 15 + 2.5 min in the initial 500 patients, whereas the times taken in the final 695 patients were just 1.5 + 0.5 min and 3.0 + 1.5 min respectively. The total fluoroscopy time was not significantly different among the groups, when performed by an operator with training in the femoral route for angiography. Cardiology fellows needed more fluoroscopy time when mastering the radial route. Crossover of access sites was seen in 220 patients (5.2%). Conclusions After 100 procedures, radial access coronary angiographies take less than 4.5 min, with first attempt radial artery access and negligible complication rates. Prior experience of coronary angiography helps in the reduction of fluoroscopy time during the learning curve. PMID:24814110

Gokhroo, Rajendra K.; Kaushik, Satish K.; Padmanabhan, Deepak; Bisht, Devendra; Gupta, Sajal

2014-01-01

26

Ciencia: Nivel A (Science: Level A).  

ERIC Educational Resources Information Center

A teacher's manual was developed for an elementary level science course in Spanish as part of an immersion program for English speaking children. The Level A manual is designed for kindergarten and grade 1 pupils. The five units cover the basic concepts of the weather, colors, animals, plants, and the five senses. Each unit includes vocabulary,…

Duron, Dolores; And Others

27

A study of understanding: Alchemy, abstraction, and circulating reference in tertiary science education  

NASA Astrophysics Data System (ADS)

Understanding is widely touted to be of paramount importance for education. This is especially true in science education research and development where understanding is heralded as one of the cornerstones of reform. Teachers are expected to teach for understanding and students are expected to learn with understanding. This dissertation is an empirical study of the concept of understanding. After analyzing various constructions of understanding in current U.S. education literature, I suggest that understanding is defined by five distinct features---they are knowledge (or knowledge base), coherence, transfer, extrapolation, and cognition--- and that these features are heavily informed and shaped by the psychological sciences. This relationship is neither good nor bad, I argue, but it means that teaching for and learning with understanding are not heavily informed and shaped by, for example, the natural sciences. Drawing from historical, philosophical, and anthropological perspectives of science, but especially from the work of Bruno Latour, I enact a radical revision(ing) of psychological notions such as "abstraction" and "transfer." The two main purposes of this re-visioning are (1) to draw critical attention to particular characteristics of a cognitive learning theory that emphasizes abstract concepts, and (2) to align many of the principles and tools used in science education more closely with those used in empirical scientific research. Finally, by bringing some examples of teaching and learning from an undergraduate biology classroom into conversation with both psychological and empirical practices and perspectives, I suggest that problematizing the current construction of understanding creates much needed room in mainstream science education for more empirical forms of learning and styles of teaching. A shift to such forms and styles, I conclude, should prove to be more inclusive and less constraining for both students and teachers.

Merritt, Brett W.

28

Level of Motivation Amongst Health Personnel Working in A Tertiary Care Government Hospital of New Delhi, India  

PubMed Central

Aims: To assess the level and factors of motivation amongst permanent government employees working in a tertiary health care institution. Material and Methods: A sample of 200 health personnel (50 in each category) i.e. doctors, nurses, technician, and support staff were contacted through face to face interview. Motivation was measured as the degree to which an individual possessed various identified motivation domains like Drive, Control, Challenge, Relationship and Rewards. Each domain was represented by 4 dimensions- accordingly a closed-ended statement represented each of these dimensions and responses were assessed on a Likert based scale. Data management was done using SPSS, ver. 19. Results: The average age for different health personnel were: Doctors 48.68 (±8.53), nurses 40.72 (±7.76), technician 38.4 (±10.65) and support staff 43.24 (±9.52) years. The average year of work experience was: Doctor 19.09 (±9.77), nurses 17.2 (±8.420), technician 14.84 (±10.45), support staff 18.24 (±10.28). A comparison of overall motivation index (mean score) revealed that nurse had highest level (3.47), followed by support staff (3.46), doctor (3.45) and technician (3.43). Based on their individual mean scores, the healthcare providers were categorised into three different levels of motivation and it was found that majority of the health personnel i.e.70% of support staff, 62% nurse, 56% doctor and technician, had high to very high level of motivation index. The mean scores for all the five factors as well as their respective ranks were also found out and it was deduced that “relationship” assumed first rank for doctors (mean score: 3.71) and technician (mean score: 3.75), whereas “control” assumed greatest significance for nurses (mean score, 3.62) and support staff (mean scores, 3.61). Based upon the mean scores, “reward” assumed third rank among all the four categories. Kruskal-Wallis test was applied to test if the different categories of health personnel varied with respect to five factors of motivation and it was found that their orientation towards the various motivational components differed significantly only with respect to Drive (P < 0.01). Conclusion: There is scope for enhancing staff motivation. PMID:25364148

Jaiswal, Poonam; Singhal, Ashok K.; Gadpayle, Adesh K.; Sachdeva, Sandeep; Padaria, Rabindra

2014-01-01

29

100 Level Arts & Science Courses100 Level Arts & Science Courses100 Level Arts & Science Courses100 Level Arts & Science Courses HumanitiesHumanitiesHumanitiesHumanities WritingWritingWritingWriting  

E-print Network

. HIST 114.6 -- 1&2(3L-1T) Ancient and Medieval World Landmarks of Near Eastern history; Greek100 Level Arts & Science Courses100 Level Arts & Science Courses100 Level Arts & Science Courses100 Level Arts & Science Courses ­­­­ HumanitiesHumanitiesHumanitiesHumanities Writing

Saskatchewan, University of

30

Assessment and Evaluation: Middle Level Science  

NSDL National Science Digital Library

This reference for teachers describes the phases of the evaluation process, assessing student progress, student assessment in science, performance-based evaluation in science, record-keeping, program evaluation, and curriculum evaluation. It contains many "how-tos" for teachers. The reader is guided through the evaluation process phases, which include preparation, assessment, evaluation, and reflection. In the preparation stage, the teacher is given examples of what is good to evaluate. The assessment stage helps the evaluator to identify information-gathering strategies, construct or select instruments, administer them to the student, and collect information on student learning progress. In the evaluation phase, the information gathered is used to make judgements about student progress. And in the reflection phase, the evaluator decides what was or was not useful from the previous three phases. The document also has a chart detailing what types of evaluation methods are good for evaluating specific skills. For example, a portfolio is suggested for use in understanding a student's grasp of key concepts and science processes, as well as the student's values and attitudes. The sections on program and curriculum evaluation discuss how the Saskatchewan Board of Education is revamping its middle-level science program and lists what they will do and why they feel it will work to improve science education in that province.

31

Third Grade Level Science Sample Curriculum.  

ERIC Educational Resources Information Center

This document presents a sample of the Arkansas science curriculum and identifies the content standards for physical science systems, life science systems, and Earth science/space science systems for third grade students. Each content standard is explained and includes student learning expectations, third grade benchmarks, assessments, and…

Arkansas State Dept. of Education, Little Rock.

32

Kindergarten Grade Level Science Sample Curriculum.  

ERIC Educational Resources Information Center

This document presents a sample of the Arkansas science curriculum and identifies the content standards for physical science systems, life science systems, and Earth science/space science systems for kindergarten students. Each content standard is explained and includes student learning expectations, kindergarten benchmarks, assessments, and…

Arkansas State Dept. of Education, Little Rock.

33

Eighth Grade Level Science Sample Curriculum.  

ERIC Educational Resources Information Center

This document presents a sample of the Arkansas science curriculum and identifies the content standards for physical science systems, life science systems, and Earth science/space science systems for eighth grade students. Each content standard is explained and includes student learning expectations, eighth grade benchmarks, assessments, and…

Arkansas State Dept. of Education, Little Rock.

34

Sixth Grade Level Science Sample Curriculum.  

ERIC Educational Resources Information Center

This document presents a sample of the Arkansas science curriculum and identifies the content standards for physical science systems, life science systems, and Earth science/space science systems for sixth grade students. Each content standard is explained and includes student learning expectations, sixth grade benchmarks, assessments, and…

Arkansas State Dept. of Education, Little Rock.

35

Fifth Grade Level Science Sample Curriculum.  

ERIC Educational Resources Information Center

This document presents a sample of the Arkansas science curriculum and identifies the content standards for physical science systems, life science systems, and Earth science/space science systems for fifth grade students. Each content standard is explained and includes student learning expectations, fifth grade benchmarks, assessments, and…

Arkansas State Dept. of Education, Little Rock.

36

First Grade Level Science Sample Curriculum.  

ERIC Educational Resources Information Center

This document presents a sample of the Arkansas science curriculum and identifies the content standards for physical science systems, life science systems, and Earth science/space science systems for first grade students. Each content standard is explained and includes student learning expectations, first grade benchmarks, assessments, and…

Arkansas State Dept. of Education, Little Rock.

37

Seventh Grade Level Science Sample Curriculum.  

ERIC Educational Resources Information Center

This document presents a sample of the Arkansas science curriculum and identifies the content standards for physical science systems, life science systems, and Earth science/space science systems for seventh grade students. Each content standard is explained and includes student learning expectations, seventh grade benchmarks, assessments, and…

Arkansas State Dept. of Education, Little Rock.

38

Fourth Grade Level Science Sample Curriculum.  

ERIC Educational Resources Information Center

This document presents a sample of the Arkansas science curriculum and identifies the content standards for physical science systems, life science systems, and Earth science/space science systems for fourth grade students. Each content standard is explained and includes student learning expectations, fourth grade benchmarks, assessments, and…

Arkansas State Dept. of Education, Little Rock.

39

Second Grade Level Science Sample Curriculum.  

ERIC Educational Resources Information Center

This document presents a sample of the Arkansas science curriculum and identifies the content standards for physical science systems, life science systems, and Earth science/space science systems for second grade students. Each content standard is explained and includes student learning expectations, second grade benchmarks, assessments, and…

Arkansas State Dept. of Education, Little Rock.

40

Tapping into students' tacit knowledge through PPSMI: An explanatory study towards English proficiency among tertiary-level students' of UiTM Kedah  

Microsoft Academic Search

Teaching and Learning of Science and Mathematics in English or PPSMI were implemented in January 2003 by Malaysian's highly respected former prime minister, Tun Dr. Mahathir bin Mohamad. PPSMI is an essential agenda which not only created to improve English proficiency among pupils but to elevate learning and achievement levels in Science and Mathematics among Malays and Bumiputera especially those

Mohd Zool Hilmie Mohamed Sawal; Nor Azlina Azmi; Zaherawati Zakaria; Zaliha Hj Hussin; Nazni Noordin; Daing Maruak Sadek

2010-01-01

41

An Ungraded Intermediate Level Science Program, Levels Four Through Six.  

ERIC Educational Resources Information Center

This curriculum guide is intended for use in an ungraded science program encompassing grades 4, 5, and 6 in elementary schools in southwestern North Dakota. The guide and a companion volume, developed for grades 1, 2, and 3, represent an attempt to develop a model science program for grades 1-6. The total program is an indepth study of 64 basic…

Paulsen, Gordon L.

42

Level 3 2013/14 Sports Science  

E-print Network

Health Related Exercise (Professor G Stratton/...) 20 credits TB1+ 2 SR-326 Sports Psychology (Dr. SDLevel 3 2013/14 Sports Science BSc Sports Science[C600] Coordinator: Dr. SD Mellalieu Semester 1 Modules Semester 2 Modules SR-311 Sports Science Research Dissertation 40 Credits Dr. IW Griffiths Choose

Harman, Neal.A.

43

Improving Elementary School Science Teaching by Cross-Level Mentoring.  

ERIC Educational Resources Information Center

Introduces a project called Teaching Elementary Physical Science (TEPS) which targets the improvement of elementary school science. Uses a cross-level mentoring approach between elementary and secondary school science teachers. Recommends providing opportunities to elementary school teachers to acquire specific teaching skills and self-confidence.…

Feldman, Arnold I.; Campbell, Robert L.; Lai, Morris K.

1999-01-01

44

The Readability of Selected Marine Science Texts by Grade Level.  

ERIC Educational Resources Information Center

The reading level of selected marine science texts was ascertained using Fry's Readability Formula (Maginnis, 1969). Attached, with an annotated list of twenty texts, is a table that lists the reading levels for each text. (CS)

Schlenker, Linda L.; Schlenker, Richard M.

45

West Hackberry Tertiary Project  

SciTech Connect

The West Hackberry Tertiary Project is a field test of the concept that air injection can be combined with the Double Displacement Process to produce a tertiary recovery process that is both low cost and economic at current oil prices.

Gillham, Travis H.

1999-01-14

46

West Hackberry Tertiary Project  

Microsoft Academic Search

The West Hackberry Tertiary Project is a field test of the concept that air injection can be combined with the Double Displacement Process to produce a tertiary recovery process that is both low cost and economic at current oil prices. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary

Kenneth Haley; Travis Gillham; Demetrios Yannimaras

1999-01-01

47

West Hackberry Tertiary Project  

Microsoft Academic Search

The West Hackberry Tertiary Project is a field test of the concept that air injection can generate tertiary oil recovery through the Double Displacement Process. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil through gravity drainage. The novel aspect of this project is the use of air

Travis Gillham; Demetrios Yannimaras

1999-01-01

48

Rethinking the tertiary mathematics curriculum  

Microsoft Academic Search

Mathematics curriculum at the tertiary level is located within a range of social and cultural theories, and is often constructed by academics seeking to promulgate a particular view of mathematics. We argue that such a curriculum should incorporate a real acknowledgement of the different ways in which students understand the nature of mathematics and its role in their professional lives.

Peter Petocz; Anna Reid

2005-01-01

49

Biostratigraphic, chronostratigraphic, and stratigraphic sequence analysis of Lower Tertiary marine sediments of Alabama for indicators of sea-level change  

Microsoft Academic Search

Early Eocene to late Oligocene marine sedimentary units in southwestern Alabama were sampled at closely spaced intervals to derive a precise time-stratigraphic framework and to determine the paleoecological and mineralogical responses to fluctuations in sea level. Paleontologic control consisted of planktonic, smaller and larger benthonic foraminifera, calcareous nannofossils, dinoflagellates, and megafossils. Paleomagnetic reversals were delineated in two boreholes which, when

P. R. Thompson; G. R. Baum

1991-01-01

50

Third trimester maternal plasma total fibronectin levels in pregnancy-induced hypertension: results of a tertiary center.  

PubMed

The aim of this study was to evaluate maternal plasma total fibronectin values in pregnancy-associated hypertension in women in the third trimester of pregnancy. A total of 125 pregnant women at the 24th week of gestation participated in this study. Nonpregnant normotensive women were included as control group (n = 30). Plasma samples for fibronectin were obtained at the 24th, 28th, and 32nd weeks of gestation from all pregnant patients. From this cohort, 10 patients met the criteria for the diagnosis of gestational hypertension and 15 women met the stringent requirements of preeclampsia, whereas 100 patients were normotensive later in gestation. Plasma total fibronectin levels were determined by radial immunodiffusion technique. Data were analyzed using the SPSS program. The mean plasma fibronectin levels of the pregnant women in whom gestational hypertension and preeclampsia developed were significantly higher at the 24th, 28th, and 32nd weeks in comparison to normotensive pregnant women (p < 0.001). However, throughout the period from the 24th to 32nd weeks of pregnancy, plasma total fibronectin levels did not exhibit a significant change in normotensive pregnant patients or in patients with preeclampsia and gestational hypertension. There was also no correlation between plasma fibronectin levels and gestational age, mean arterial pressure, birth weight, and 5-minute Apgar scores in all groups (p < 0.05). The elevated maternal plasma fibronectin level over 40 mg/dL is capable of predicting preeclampsia with a sensitivity of 73% and a specificity of 92%. These results suggest that serial plasma fibronectin measurements before 24 weeks' of gestation may be helpful in the early detection of preeclampsia in normotensive gravid women who are destined to become clinically preeclamptic. PMID:16444432

Aydin, Tahsin; Varol, Füsun G; Sayin, Niyazi Cenk

2006-01-01

51

Teaching College-Level Science and Engineering  

NSDL National Science Digital Library

This course, created by Dr. Sanjoy Mahajan of the Massachusetts Institute of Technology, focuses on the knowledge and skills necessary for teaching science and engineering in higher education. This course is designed for graduate students interested in an academic career, and anyone else interested in teaching. Readings and discussions include: teaching equations for understanding, designing exam and homework questions, incorporating histories of science, creating absorbing lectures, teaching for transfer, the evils of PowerPoint, and planning a course. The subject is appropriate for both novices and those with teaching experience.

Mahajan, Sanjoy, 1969-

52

Determinants of symptom profile and severity of conduct disorder in a tertiary level pediatric care set up: A pilot study  

PubMed Central

Background: Conduct disorders (CDs) are one of the most common causes for referral to child and adolescent mental health centers. CD varies in its environmental factors, symptom profile, severity, co-morbidity, and functional impairment. Aims: The aim was to analyze the determinants of symptom profile and severity among childhood and adolescent onset CD. Settings and Design: Clinic based study with 60 consecutive children between 6 and 18 years of age satisfying International Classification of Disease-10 Development Control Rules guidelines for CD, attending behavioral pediatrics unit outpatient. Materials and Methods: The family psychopathology, symptom severity, and functional level were assessed using parent interview schedule, revised behavioral problem checklist and Children's Global Assessment Scale. Statistical Analysis: The correlation and predictive power of the variables were analyzed using SPSS 16.0 version. Results: There was significant male dominance (88.3%) with boy girl ratio 7.5:1. Most common comorbidity noticed was hyperkinetic disorders (45%). Childhood onset group was more predominant (70%). Prevalence of comorbidity was more among early onset group (66.7%) than the late-onset group (33.3%). The family psychopathology, symptom severity, and the functional impairment were significantly higher in the childhood onset group. Conclusion: The determinants of symptom profile and severity are early onset (childhood onset CD), nature, and quantity of family psychopathology, prevalence, and type of comorbidity and nature of symptom profile itself. The family psychopathology is positively correlated with the symptom severity and negatively correlated with the functional level of the children with CD. The symptom severity was negatively correlated with the functional level of the child with CD. PMID:25568472

Jayaprakash, R.; Rajamohanan, K.; Anil, P.

2014-01-01

53

Project Water Science. General Science High School Level.  

ERIC Educational Resources Information Center

This teacher's guide presents 12 hands-on laboratory activities for high school science classes that cover the environmental issue of water resources in California. The activities are separated into three sections. Five activities in the section on water quality address the topics of groundwater, water hardness, bottled water, water purity, and…

Water Education Foundation, Sacramento, CA.

54

Turkish Middle School Students' Cognitive Development Levels in Science  

ERIC Educational Resources Information Center

Students' abstract reasoning abilities can differ from one society to another. Students' profiles play significant roles in these differences. The aim of the study is to determine the relationship between middle school students' cognitive development levels and their profiles (age, gender, and science achievement) using the Science Cognitive…

Cepni, Salih; Ozsevgec, Tuncay; Cerrah, Lale

2004-01-01

55

Chemical Literacy Levels of Science and Mathematics Teacher Candidates  

ERIC Educational Resources Information Center

The goal of this study was to investigate Turkish science and mathematics teacher candidates' levels of attainment in chemical literacy. These candidates had all studied the new Turkish chemistry curriculum in high school. The sample of the study consisted of 112 students, who were first-year students in the Department of Secondary Science

Celik, Suat

2014-01-01

56

Measuring Science Teachers' Stress Level Triggered by Multiple Stressful Conditions  

ERIC Educational Resources Information Center

The complexity of science teaching requires science teachers to encounter a range of tasks. Some tasks are perceived as stressful while others are not. This study aims to investigate the extent to which different teaching situations lead to different stress levels. It also aims to identify the easiest and most difficult conditions to be regarded…

Halim, Lilia; Samsudin, Mohd Ali; Meerah, T. Subahan M.; Osman, Kamisah

2006-01-01

57

Z .Earth and Planetary Science Letters 154 1998 221235 Depleted spinel harzburgite xenoliths in Tertiary dykes from East  

E-print Network

Z .Earth and Planetary Science Letters 154 1998 221­235 Depleted spinel harzburgite xenoliths Greenland craton is underlain by highly depleted peridotites. The samples are mostly spinel Z .harzburgites lower bulk SiO average 42.6 wt%2 .versus 44­49 wt% . Spinel compositions are similar to those in other

58

BEST: Bilingual environmental science training: Kindergarten level  

SciTech Connect

This booklet is one of a series of bilingual guides to environmental-science learning activities for students to do at home. Lesson objectives, materials required, procedure, vocabulary, and subjects integrated into the lesson are described in English for each lesson. A bilingual glossary, alphabetized by English entries, with Spanish equivalents in both English and Spanish, follows the lesson descriptions, and is itself followed by a bibliography of English-language references. This booklet includes descriptions of six lessons covering the senses of touch and sight, the sense of smell, how to distinguish living and non-living things, cell structures, the skeletal system, and the significance of food groups. 8 figs.

NONE

1996-03-01

59

Turkish Pre-Service Elementary Science Teachers' Scientific Literacy Level and Attitudes toward Science  

ERIC Educational Resources Information Center

In order to educate elementary students scientifically literate as expected in the science curricula in many countries around the world, science teachers need to be equipped with the diverse aspects of scientific literacy. This study investigates whether pre-service elementary science teachers at universities in Turkey have a satisfactory level of…

Cavas, Pinar Huyuguzel; Ozdem, Yasemin; Cavas, Bulent; Cakiroglu, Jale; Ertepinar, Hamide

2013-01-01

60

Science Literacy: Exploring Middle-Level Science Curriculum Structure and Student Achievement  

ERIC Educational Resources Information Center

The purpose of this quantitative study was to explore and describe the relationship between middle-level science curriculum structure and student science literacy. Although national and state science curriculum standards are based on an integrated model, there is little quantitative data supporting integration. This study explored the use of…

Faulkner, Sarah Ford

2012-01-01

61

The Science of Level Design Kenneth Hullett  

E-print Network

, and item placement. There is little formal understanding of this process, but rather a large body of design and Subject Descriptors D.2.2 [Software Engineering]: Design Tools and Techniques, H.1.2 [User/Machine Systems]: Human factors, K.8.0 [Personal Computing]: Games General Terms Design, Human Factors Keywords level

California at Santa Cruz, University of

62

Educational Initiatives at the Tertiary Level for Black South Africans: Constraints, Changes, and Challenges. South African Information Exchange, Working Paper Number 23.  

ERIC Educational Resources Information Center

Looking primarily at the issues of black students at South African universities and of access and bursaries, the seven articles contained in this document focus on access to tertiary education, the kind of support provided to students once they have gained access, and the roles for which people are being educated. Following an introduction by John…

Samuel, John, Ed.; Micou, Ann McKinstry, Ed.

63

Issues of Identity and African Unity Surrounding the Introduction of an Exogenous African Language, Swahili, at Tertiary Level in South Africa  

ERIC Educational Resources Information Center

This paper reports on a study that examines the attitudes of university students and immigrants to the introduction of Swahili at a tertiary institution in South Africa. Data were obtained from a questionnaire survey and interviews with questions that covered the domains in which Swahili could be most useful, who should learn it and the reasons…

Wildsmith-Cromarty, Rosemary; Conduah, Aloysius N.

2014-01-01

64

Investigation of Inquiry-based Science Pedagogy among Middle Level Science Teachers: A Qualitative Study  

NASA Astrophysics Data System (ADS)

This study implemented a qualitative approach to examine the phenomenon of "inquiry-based science pedagogy or inquiry instruction" as it has been experienced by individuals. Data was collected through online open-ended surveys, focus groups, and teacher reported self-reflections to answer the research questions: 1) How do middle level science teachers conceptualize "inquiry-based instruction?" 2) What are preferred instructional strategies for implementation in middle level science classrooms? And 3) How do middle level science teachers perceive the connection between science instruction and student learning? The participants within this research study represent 33 percent of teachers in grades 5 through 9 within six school districts in northeastern Pennsylvania. Of the 12 consent forms originally obtained, 10 teachers completed all three phases of the data collection, including the online survey, participation in focus groups, and teacher self-reflection. 60 percent of the participants taught only science, and 40 percent taught all content areas. Of the ten participants, 50 percent were certified teachers of science and 50 percent were certified as teachers of elementary education. 70 percent of the research participants reflected having obtained a master's, with 60 percent of these degrees being received in areas of education, and 10 percent in the area of science. The research participants have a total of 85 collective years of experience as professional educators, with the average years of experience being 8.5 years. Analysis of data revealed three themes related to research question #1) How do middle-level science teachers conceptualize inquiry-based instruction? and sub-question #1) How do middle-level science teachers characterize effective instruction? The themes that capture the essence of teachers' formulation of inquiry-based instruction that emerged in this study were student centered, problem solving, and hands-on . Analysis of data revealed one theme related to research question #2) What are preferred instructional strategies for implementation in middle level science classrooms? and topical sub-question #2) How do middle level science teachers structure instruction. The theme that emerged was needs of students. Analysis of the data revealed one theme related to research question #3) How do middle level science teachers perceive the relationship between science instruction and student learning? and topical sub-question #3) How do middle level science teachers view their role in relation to student learning? This theme is meaning making. Analysis of the data related to meaning making revealed two sub-themes of application and relationships. It is clear that middle level science teachers have a vision for inquiry-based science instruction, but implementation is inhibited by a variety of factors including curricular programming that is very broad and lacks depth, the scheduling of time and resources for science, and the absence of a clear model of inquiry-based instruction. In addition, only one participant referenced students investigating their own authentic questions and no participants reflected on the importance of students using evidence in their explanations of scientific phenomenon. Additionally, participants continually reflected on the needs of their students informing instructional practices, and it is wondered if there is a clear understanding among middle level teachers of how students learn science. Real world applications were recognized as important within science learning and the researcher questions whether teachers of science have adequate opportunities to explore real world application of science concepts throughout their careers in order to foster connections within the classroom. These findings support the need for strong, job-embedded professional development, the cultivation of learning communities dedicated to the investigation and implementation of inquiry-based science, the focusing of curricular programming to allow for in depth investigation of scientific concep

Weiland, Sunny Minelli

65

West Hackberry Tertiary Project  

SciTech Connect

The West Hackberry Tertiary Project is a field test of the concept that air injection can generate tertiary oil recovery through the Double Displacement Process. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil through gravity drainage. The novel aspect of this project is the use of air as the injection fluid. In Gulf Coast oil reservoirs with pronounced bed dip, reservoir performance has shown that gravity drainage recoveries average 80% to 90% of the original oil in place while water drive recoveries average 50% to 60% of the original oil in place. The target for tertiary oil recovery with the Double Displacement Process is the incremental oil between the 50% to 60% water drive recoveries and the 80% to 90% gravity drainage recoveries. The use of air injection in this process combines the benefits of air's low cost and universal accessibility with the potential for improved oil recovery resulting from spontaneous in situ combustion. If successful, this project will demonstrate that utilizing air injection in the Double Displacement Process will result in an economically viable tertiary process in many Gulf Coast oil reservoirs where other tertiary processes are presently uneconomic. The West Hackberry Tertiary Project receives matching funds from the United States Department of Energy (DOE) as part of the DOE's Class 1 Program for the development of advance recovery technologies in fluvial dominated deltaic reservoirs. In addition, the Petroleum Engineering Department at Louisiana State University (LSU) provides independent study and technology transfer.

Gillham, Travis; Yannimaras, Demetrios

1999-11-03

66

West Hackberry Tertiary Project  

SciTech Connect

The West Hackberry Tertiary Project is a field test of the concept that air injection can generate tertiary oil recovery through the Double Displacement Process. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil through gravity drainage. The novel aspect of this project is the use of air as the injection fluid. In Gulf Coast oil reservoirs with pronounced bed dip, reservoir performance has shown that gravity drainage recoveries average 80% to 90% of the original oil in place while water drive recoveries average 50% to 60% of the original oil in place. The target for tertiary oil recovery with the Double Displacement Process is the incremental oil between the 50% to 60% water drive recoveries and the 80% to 90% gravity drainage recoveries. The use of air injection in this process combines the benefits of air`s low cost and universal accessibility with the potential for improved oil recovery resulting from spontaneous in situ combustion. If successful, this project will demonstrate that utilizing air injection in the Double Displacement Process will result in an economically viable tertiary process in many Gulf Coast oil reservoirs where other tertiary processes are presently uneconomic. The West Hackberry Tertiary Project receives matching funds from the United States Department of Energy (DOE) as part of the DOE`s Class I Program for the development of advance recovery technologies in fluvial dominated deltaic reservoirs. The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The concept is being field tested in low pressure (350 to 800 pounds per square inch (psi)) reservoirs on the north flank of the field and high pressure reservoirs (2500 to 3300 psi) on the west flank of the field.

Gillham, T.; Cerveny, B.; Kragas, T.

1997-04-08

67

The effect of levels of cooperation within physical science laboratory groups on physical science achievement  

Microsoft Academic Search

The purpose of this study was to investigate the effect of the levels of group cooperation on students' achievement during a series of physical science laboratory activities. Six intact seventh-grade physical science classes taught by two teachers, with each teacher instructing three classes, were selected from two middle schools. For each teacher, one of the classes was taught with a

Huey-Por Chang; Norman G. Lederman

1994-01-01

68

Investigation of Inquiry-Based Science Pedagogy among Middle Level Science Teachers: A Qualitative Study  

ERIC Educational Resources Information Center

This study implemented a qualitative approach to examine the phenomenon of "inquiry-based science pedagogy or inquiry instruction" as it has been experienced by individuals. Data was collected through online open-ended surveys, focus groups, and teacher reported self-reflections to answer the research questions: 1) How do middle level science

Weiland, Sunny Minelli

2012-01-01

69

Scaling System-Level Science: Scientific Exploration and IT Implications  

Microsoft Academic Search

The study and creation of the infrastructure required to enable system-level science--the integration of diverse sources of knowledge about the constituent parts of a complex system with the goal of obtaining an understanding of the system's properties as a whole--is becoming increasingly important, spawning new knowledge in variety of fields at a rapid pace.

Ian T. Foster; Carl Kesselman

2006-01-01

70

STEM: Science Technology Engineering Mathematics. State-Level Analysis  

ERIC Educational Resources Information Center

The science, technology, engineering, and mathematics (STEM) state-level analysis provides policymakers, educators, state government officials, and others with details on the projections of STEM jobs through 2018. This report delivers a state-by-state snapshot of the demand for STEM jobs, including: (1) The number of forecast net new and…

Carnevale, Anthony P.; Smith, Nicole; Melton, Michelle

2011-01-01

71

The study of student misunderstandings in the physical sciences  

Microsoft Academic Search

The, apparently widespread, reduction in the popularity of physical science courses, at both secondary and tertiary levels, has had a number of effects. Attempts by schools to provide a broadly attractive programme in the sciences seem to have reduced the amount of time spent on the physical sciences. Moreover, the introduction of applied and technological aspects, however desirable, within a

J. K. Gilbert

1977-01-01

72

American Tertiary mollusks of the genus Clementia  

USGS Publications Warehouse

Aside from its value as an aid in determining the age of Tertiary beds, the chief interest of the genus Clementia lies in the anomalous features of its present and former distribution. An attempt is made in this paper to trace its geologic history, to point out its paleobiologic significance, and to describe all the known American Tertiary species. The fossils from Colombia used in preparing this report were collected during explorations made under the direction of Dr. 0. B. Hopkins, chief geologist of the Imperial Oil Co. (Ltd.), who kindly donated them to the United States National Museum. Dr. T. Wayland Vaughan, of the Scripps Institution of Oceanography, furnished information relating to specimens collected by him in Mexico. Dr. Bruce L. Clark, of the University of California; Dr. G. Dallas Hanna, of the California Academy of Sciences; Dr. H. A. Pilsbry, of the Philadelphia Academy of Natural Sciences; and Dr. W. D. Matthew, of the American Museum of Natural History, generously loaned type specimens and other material. Doctor Clark and Doctor Hanna also gave information concerning the Tertiary species from California. Mr. Ralph B. Stewart, of the University of California, read the manuscript, and I have taken advantage of his suggestions. I am also indebted to Mr. L. R. Cox, of the British Museum, for information relating to the fossil species from Persia, Zanzibar, and Burma, and to Dr. Axel A. Olsson, of the International Petroleum Co., for data concerning undescribed Tertiary species from Peru.

Woodring, W.P.

1927-01-01

73

ALICE: Project Overview and High Level Science Products  

NASA Astrophysics Data System (ADS)

We report on the status of the ALICE project (Archival Legacy Investigation of Circumstellar Environments), which consists in a consistent reanalysis of the entire HST-NICMOS coronagraphic archive. Over the last two years, we have developed a sophisticated pipeline able to handle the data of the 400 stars of the archive. This pipeline builds on the Karhunen-Loeve Image Projection (KLIP) algorithm, and was completed in the fall of 2014. We discuss the first processing and analysis results of the overall reduction campaign. As we will deliver high-level science products to the STScI MAST archive, we are defining a new standard format for high-contrast science products, which will be compatible with every new high-contrast imaging instrument (GPI, SPHERE, P1640, CHARIS, etc.) and used by the JWST coronagraphs. We present here the specifications of this standard.

Soummer, Remi; Choquet, Elodie; Pueyo, Laurent; Brendan Hagan, J.; Gofas-Salas, Elena; Rajan, Abhijith; Perrin, Marshall D.; Chen, Christine; Debes, John H.; Golimowski, David A.; Hines, Dean C.; Schneider, Glenn; N'Diaye, Mamadou; Mawet, Dimitri; Marois, Christian; Barman, Travis

2015-01-01

74

HANOVER PARK TERTIARY STUDIES  

EPA Science Inventory

During a one year study, four tertiary treatment units were tested and evaluated. Three of the units were deep-bed filters which were used to treat secondary plant effluent. The types of filters used were: (1) an upflow filter with a sand media, (2) a downflow gravity filter with...

75

Probing the Natural World, Level III, Teacher's Edition: Environmental Science. Intermediate Science Curriculum Study.  

ERIC Educational Resources Information Center

This is the teacher's edition of one of the eight units of the Intermediate Science Curriculum Study (ISCS) for level III students (grade 9). This unit and its activities focuses on environmental pollution and hazards. Optional excursions are suggested for students who wish to study an area in greater depth. An introduction describes the problem…

Bonar, John R., Ed.; Hathway, James A., Ed.

76

"Doing Science" through Discourse-in-Interaction: Young Children's Science Investigations at the Early Childhood Level  

ERIC Educational Resources Information Center

This research investigates the interconnectedness of scientific inquiring at the early childhood level, as we explore the discourse-in-interaction processes occurring within small inquiry groups of 5- and 6-year-old children. The rationale behind this research is to explore the nature of science-related discourse, and to that end, this work…

Siry, Christina; Ziegler, Gudrun; Max, Charles

2012-01-01

77

Approaching Gender Parity: Women in Computer Science at Afghanistan's Kabul University  

ERIC Educational Resources Information Center

This study explores the representation of women in computer science at the tertiary level through data collected about undergraduate computer science education at Kabul University in Afghanistan. Previous studies have theorized reasons for underrepresentation of women in computer science, and while many of these reasons are indeed present in…

Plane, Jandelyn

2010-01-01

78

Approaching gender parity: Women in computer science at Afghanistan's Kabul University  

Microsoft Academic Search

This study explores the representation of women in computer science at the tertiary level through data collected about undergraduate computer science education at Kabul University in Afghanistan. Previous studies have theorized reasons for underrepresentation of women in computer science, and while many of these reasons are indeed present in Afghanistan, they appear to hinder advancement to degree to a lesser

Jandelyn Plane

2010-01-01

79

West Hackberry Tertiary Project  

SciTech Connect

The West Hackberry Tertiary Project is a field test of the concept that air injection can be combined with the Double Displacement Process to produce a tertiary recovery process that is both low cost and economic at current oil prices. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil by gravity drainage. In reservoirs with pronounced bed dip such as those found in West Hackberry and other Gulf Coast salt dome fields, reservoir performance has shown that gravity drainage recoveries average 80% to 90% of the original oil in place while waterdrive recoveries average 50% to 60% of the original oil in place. The target for tertiary oil recovery in the Double Displacement Process is the incremental oil between the 50% to 60% waterdrive recoveries and the 80% to 90% gravity drainage recoveries. In previous field tests, the Double Displacement Process has proven successful in generating tertiary oil recovery. The use of air injection in this process combines the benefits of air's low cost and universal accessibility with the potential for accelerated oil recovery from the combustion process. If successful, this project will demonstrate that utilizing air injection in the Double Displacement Process will result in an economically viable tertiary process in reservoirs (such as Gulf Coast salt dome reservoirs) where any other tertiary process is presently uneconomic. Air injection on the West Hank began in November of 1994. Although West Flank air injection has increased reservoir pressure by 500 pounds per square inch (psi), production response has not yet occurred. The gas cap on the West Flank has not expanded sufficiently to push the oil rim down to the nearest down structure well. Cumulative injection to date is 1.6 BCF, only approximately 50% of the projected volume required to establish oil production response. Additional air injection is required to further expand the gas cap and thereby bring about oil production. Air injection rates have been restricted due to iron oxide plugging in the injectors. To spread risk among multiple reservoirs, the project was expanded in 1996 to include air injection in low pressure reservoirs on the North Flank of the field. The project reservoirs on the West Flank are much higher pressure (2500-3300 psi) than the project reservoirs on the North Flank (300-600 psi). Air injection began on the North Rank in July of 1996. While West Flank air injection has not yet yielded oil production, air injection has increased oil production in all three low pressure North Hank reservoirs. Production increased in the North Rank after only two months of air injection, much quicker than anticipated. Between July of 1996 and July of 1999, cumulative air injection of 0.9 BCF increased North Flank oil production by 224,000 barrels above the normal decline. As of July, 1999, air injection was generating 270 barrels of oil per day (BOPD) of incremental oil production from the three low pressure reservoirs on the North Flank of the field.

Kenneth Haley; Travis Gillham; Demetrios Yannimaras

1999-03-31

80

A Study of the Competencies Needed of Entry-Level Academic Health Sciences Librarians  

ERIC Educational Resources Information Center

The purpose of this study was to identify the professional and personal competencies that entry-level academic health sciences librarians should possess from the perspectives of academic health sciences library directors, library and information sciences (LIS) educators who specialize in educating health sciences librarians, and individuals who…

Philbrick, Jodi Lynn

2012-01-01

81

Readability Levels of the Science Textbooks Most Used in Secondary Schools.  

ERIC Educational Resources Information Center

Evaluated and compared 12 science textbooks with respect to their readability levels and agreement with the intended reader level. Four of the books were determined to be unsatisfactory for their intended grade levels. (20 references) (MDH)

Chiang-Soong, Betty; Yager, Robert E.

1993-01-01

82

The effects on interest, instruction, and achievement on the science question level of middle school students  

NASA Astrophysics Data System (ADS)

The effects of instruction in writing researchable questions, science topic interest, and achievement (science, reading, and mathematics) on science question level in seventh grade students were investigated experimentally. The hypotheses were: students instructed in researchable questioning in science would outperform students who were not instructed on a measure of science question level; students interested in science topics would score higher on a measure of science question level, than when they are not interested; and high achieving students in mathematics, reading or science would outperform students who are not high achievers on a measure of science question level. Eight classes of normally achieving seventh graders (n = 106 students), from a middle school in west central Florida, were randomly assigned to two treatments. One group received instruction in writing researchable questions in science, the other group did not receive instruction. Each student in each of the eight classes completed "The Middle School Students' Science Topic Interest Rating Scale", developed for this study (test-retest reliability, rsbs =.84), rating each of the thirteen topics from one to three. All students selected two topics in which they were least interested, and two topics in which they were most interested. They then wrote researchable questions for each topic. All students took the Scholastic Aptitude Tests (SAT) in reading, mathematics and science. The questions were rated using the four levels described by "The Middle School Students' Science Question Rating Scale", developed for this study (inter-rater reliability, rsbs =.96). The scores for each question were averaged for two raters then summed for each interest level for each student The means and standard deviations were computed for questions generated at a low level of interest, questions generated at a high level of interest, reading SAT scores, mathematics SAT scores, and science SAT scores. The data were analyzed for main effects and interaction effects using general linear modeling procedures. The variable modeled was question level. There was one within subjects factor, science topic interest, and four between subjects factors: instruction, science achievement, mathematics achievement and reading achievement. The results, consistent with the hypotheses, indicate that students who received instruction in researchable questioning outperformed those students who were not instructed on a measure of science question level; when students were interested in a science topic their question level was significantly higher than when they were not interested; and students who were high achievers in mathematics, reading or science outperformed those students who were not high achievers on a measure of science question level.

Cuccio Schirripa, Santine

83

Is This the End of the English Tradition of Practical A-Level Science?  

ERIC Educational Resources Information Center

From September 2015, schools in England will be teaching new A-level science specifications that have been developed by examination boards to encompass new higher levels of demand developed by the Department for Education. Integral to these new specifications is a radical change to the contribution of practical science to the A-level grade of the…

Carter, Ian

2014-01-01

84

Ethiopian Tertiary dike swarms  

NASA Technical Reports Server (NTRS)

Mapping of the Ethiopian rift and Afar margins revealed the existence of Tertiary dike swarms. The structural relations of these swarms and the fed lava pile to monoclinal warping of the margins partly reflect a style of continental margin tectonics found in other parts of the world. In Ethiopia, however, conjugate dike trends appear to be unusually strongly developed. Relation of dikes to subsequent margin faulting is ambiguous, and there are instances where the two phenomena are spatially separate and of differing trends. There is no evidence for lateral migration with time of dike injection toward the rift zone. No separate impingement of Red Sea, Gulf of Aden, and African rift system stress fields on the Ethiopian region can be demonstrated from the Tertiary dike swarms. Rather, a single, regional paleostress field existed, suggestive of a focus beneath the central Ethiopian plateau. This stress field was dominated by tension: there is no cogent evidence for shearing along the rift margins. A gentle compression along the rift floor is indicated. A peculiar sympathy of dike hade directions at given localities is evident.

Mohr, P. A.

1971-01-01

85

Organizational health and the achievement level of students in science at the secondary-level schools in Sri Lanka  

NASA Astrophysics Data System (ADS)

This study sought to identify those organizational health factors that might have overriding influence on the achievement level of students in science in Sri Lankan secondary schools. This study involved 752 students, 33 science teachers, and 10 principals from two different districts, Ampara and Colombo, in Sri Lanka. Ten Tamil medium, secondary level, public schools were selected to participate in this study. Data were collected using four types of instruments: a questionnaire for pupils; interview schedules for science teachers and principals; checklists for classroom/school facilities, science laboratory facilities, and science practicals; and a science achievement test. The analysis focused on the collective perceptions of students, science teachers, and principals. Regression and path analyses were used as major analysis techniques, and the qualitative data provided by science teachers and principals were considered for a crosschecking of the quantitative inferences. The researcher found teacher affiliation, academic emphasis, and instructional leadership of the principal, in descending order, were the overriding influential factors on the achievement level of students in science in Sri Lankan secondary schools. At the same time a similar descending order was found in their mean values and qualities. The researcher concluded that increasing the quality of the organizational health factors in Sri Lankan secondary schools would result in improved better achievement in science. The findings further indicate that instructional leadership of the principal had both direct and indirect effects on students' achievement in science when academic emphasis and teacher affiliation were taken into account. In addition, the resource support of the principal did not make any difference in students' science achievement and the findings stress the availability of the resources for individual students instead of assuming the general facilities of the school are available to all students of the school.

Pakkeer-Jaufar, Pakkeer Cadermohideen

86

National Institute for Science Education College Level One  

NSDL National Science Digital Library

The University of Wisconsin -- Madison based National Institute for Science Education (NISE) has a mission that consists of three primary goals. The first goal is to improve critical thinking skills by "fostering innovation in introductory STEM education at the college level"; the second is "to eliminate culture and gender barriers to allow a more diverse population to study STEM subjects"; and the last goal is "to prepare students for their future STEM careers, and increase STEM literacy in general." A good place to see how they go about fulfilling these admirable goals is via the "Resources" area. Here visitors can look over three helpful resources, including "Collaborative Learning" and "Learning Through Technology". In the "Collaborative Learning" area, visitors can learn more about incorporating group work into the classroom and even read stories from other experienced teachers about this process. The "Learning Through Technology" area contains information for educators such as in-depth case studies of technology in use, assessment tools for the classroom, and a glossary.

2012-07-06

87

Teaching Geologic/Earth Science Remote Sensing at the Collegiate and the Secondary School Level  

ERIC Educational Resources Information Center

Describes util satellite photography, satellite remote sensing, and high altitude aircraft photography for teaching environmental and ecological aspects of earth science at the secondary or college levels. (SL)

Fisher, John J.

1977-01-01

88

Preparedness for Tertiary Chemistry: Issues of Placement and Performance of Academic Development Programmes  

ERIC Educational Resources Information Center

The introduction of an outcomes-based curriculum in South Africa together with a new syllabus for physical sciences for grades 10-12, prompted the development of an instrument to monitor conceptual understanding in chemistry at the secondary-tertiary interface. This instrument was used to evaluate placement within different programmes at tertiary

Potgieter, M.; Davidowitz, B.; Mathabatha, S. S.

2008-01-01

89

Speculations on real sea-level changes and vertical motions of continents at selected times in the Cretaceous and Tertiary Periods  

Microsoft Academic Search

Percentages of continental areas that were flooded during a transgression plotted on the corresponding hypsometric curves may be used to distinguish between (1) substantial posttransgressive change in continental hypsometries and (2) a transgression caused by a sea-level rise followed by little change in continental hypsometries. The method, applied to percentages of flooding during Albian, late Campanian to early Maestrichtian, Eocene,

Gerard Bond

1978-01-01

90

SOFT SKILLS LEVEL OF MALAYSIAN STUDENTS AT A TERTIARY INSTITUTION: A COMPARATIVE CASE STUDY BASED ON GENDER, AREA OF RESIDENCE AND TYPE OF SCHOOLS  

Microsoft Academic Search

The development of soft skills has been a major concern in the Malaysian higher education scene. In order to identify appropriate strategies in developing these skills among students, it is important for institutions to be aware of soft skill levels of students before they start a degree programme. This paper reports the findings of a study on the soft skill

Shariffah Bahyah; Syed Ahmad; Putra Nilai

2013-01-01

91

Multiple-Choice Exams: An Obstacle for Higher-Level Thinking in Introductory Science Classes  

ERIC Educational Resources Information Center

Learning science requires higher-level (critical) thinking skills that need to be practiced in science classes. This study tested the effect of exam format on critical-thinking skills. Multiple-choice (MC) testing is common in introductory science courses, and students in these classes tend to associate memorization with MC questions and may not…

Stanger-Hall, Kathrin F.

2012-01-01

92

A Study of Secondary Science Teacher Efficacy and Level of Constructivist Instructional Practice Implementation in West Virginia Science Classrooms  

ERIC Educational Resources Information Center

The purpose of this study was to investigate the level of use of selected constructivist instructional practices and level of teacher efficacy in West Virginia secondary science classrooms. The study next sought to determine if a relationship existed between level of use of the constructivist practices and teacher efficacy. In addition the study…

Knapp, Amanda Kristen

2013-01-01

93

Staying in the Science Stream: Patterns of Participation in A-Level Science Subjects in the UK  

ERIC Educational Resources Information Center

This paper describes patterns of participation and attainment in A-level physics, chemistry and biology from 1961 to 2009. The A level has long been seen as an important gateway qualification for higher level study, particularly in the sciences. This long-term overview examines how recruitment to these three subjects has changed in the context of…

Smith, Emma

2011-01-01

94

Unified Science Approach K-12, Proficiency Levels 1-6.  

ERIC Educational Resources Information Center

Presented are first-revision materials of the K-12 unified science program implemented in the public schools of Anne Arundel County, Maryland. Detailed descriptions are given of the roles of students and teachers, purposes of bibliography, major concepts in unified science, processes of inquiry, scheme and model for scientific literacy, and…

Oickle, Eileen M., Ed.

95

Recommendations for master's level programs in computer science: a report of the ACM curriculum committee on computer science  

Microsoft Academic Search

The ACM Committee on Curriculum in Computer Science has spent two years investigating master's degree programs in Computer Science. This report contains the conclusions of that effort. Recommendations are made concerning the form, entrance requirements, possible courses, staffing levels, intent, library resources, and computing resources required for an academic, professional, or specialized master's degree. These recommendations specify minimum requirements which

Kenneth I. Magel; Richard H. Austing; Alfs Berztiss; Gerald L. Engel; John W. Hamblen; A. A. J. Hoffmann; Robert Mathis

1981-01-01

96

Tertiary serpentinite tectonics in northern Hispaniola  

SciTech Connect

At least 4 types of serpentinite bodies are found in N. Hispaniola, by different inclusion and Tertiary deformation styles: (1) Narrow slivers occurring on Tertiary faults, rarely containing inclusions, which occur throughout the region. (2) Massive fractured serpentinites associated with a Cretaceous volcanic plutonic and metamorphic basement, and containing rodingite dikes, occurs in the Puerto Plata region. (3) Massive, fractured, but coherent bodies containing Tertiary limestone clasts which apparently the same as nearby limestone overlying the serpentinite occur west of Puerto Plata. (4) Diapirically emplaced bodies in the Gaspar Hernandez region containing both brecciated and massive zones and containing a variety of inclusions. Type 4 bodies protrude into the clastic Upper Eocene Altamira Fm. The most common tectonic inclusions in these bodies are rounded cobbles of diorite and gabbro. Amphibolites are also common, but friable greenschists and blueschists are rare, as are blocks of clastic sediments. The authors suggest that large blocks of the Altamira Fm. were incorporated into the serpentinite during their past Eocene diapirism and that these blocks were deformed in a brittle manner into gouge zones by internal movements in the diapir. Type 4 serpentinites may therefore have incorporated inclusions at high crustal levels by brittle processes. Type 2 bodies, in contrast, may have incorporated inclusions by ductile flow of serpentinite at lower crustal levels. Type 33 bodies are the most enigmatic. They may be sedimentary, but alternatively may have incorporated limestone in a gouge (as for type 4), which has later healed to a coherent mass.

Nagle, F.; Draper, G.

1985-01-01

97

Apolipoproteins AI/B/E gene polymorphism and their plasma levels in patients with coronary artery disease in a tertiary care-center of Eastern India  

PubMed Central

Aim The present study was designed to investigate whether the three-apolipoprotein (AI, B, E) gene polymorphisms were related to alter their plasma protein levels and hence associated to coronary artery disease (CAD). Methods We determined distribution of MspI apo AI, EcoRI apo B, HhaI apo E gene polymorphisms, plasma apolipoproteins and lipids levels among 150 patients having CAD admitted to the Department of Cardiology, N.R.S. Medical College & Hospital, Kolkata, India during June 2010–June 2012 and 150 age sex matched healthy controls. Results We found that ApoAI concentration of studied population was significantly different in each genotypes of ?75 G/A apo AI (p < 0.0001) gene polymorphism. A significant association was found in multivariate analysis for the genotypes with apo E4 allele [odds ratio (OR): 3.639; 95% confidence interval (CI): 1.019–12.995, p = 0.040] with four conventional risk factors (i.e. smoking, low-density lipoprotein, ApoAI and ApoB) with CAD. In contrast E2 allele has reverse effect, but the genotypes with apo E2 allele was no longer significant in the multivariate model (OR: 1.788; 95% CI: 0.400–8.001, p = 0.447) where as being significant in univariate analysis (OR: 0.219; 95% CI: 0.087–0.552, p = 0.001). Conclusions Our findings suggest that the polymorphisms apo AI MspI and apo B EcoRI do not seem to affect CAD. But the genotype with E4 allele of apo E gene independent of other risk factors is associated with this disease. PMID:24407534

Biswas, Santanu; Ghoshal, Pradip K.; Halder, Bhubaneswar; Ganguly, Kajal; DasBiswas, Arup; Mandal, Nripendranath

2013-01-01

98

Communicating Ocean Science at the Lower-Division Level  

NASA Astrophysics Data System (ADS)

Pacific Ocean Literacy for Youth, Publics, Professionals, and Scientists (POLYPPS) is an NSF-funded collaboration between the University of Hawai`i and the Center for Ocean Science Education Excellence (COSEE) - California, which is based at the Lawrence Hall of Science, University of California - Berkeley. One of the objectives of this project is to instutionalize ocean science communications courses at colleges and universities in Hawai`i. Although the focus of most of these communications courses has been on training graduate students and scientists, lower-division students interested in the ocean sciences are finding this background helpful. At the University of Hawai`i Maui College there are several marine science courses and certificate programs that require students to interact with the public through internships, research assistantships, and course-related service-learning projects. Oceanography 270, Communicating Ocean Science, is now offered to meet the needs of these students who engage with the public in informal educational settings. Other students who enroll in this course have a general interest in the marine environment and are considering careers in K-12 formal education. This course gives this group of students an opportunity to explore formal education by assisting classroom teachers and preparing and presenting problem-based, hands-on, inquiry activities. Employers at marine-related businesses and in the tourist industry have welcomed this course with a focus on communication skills and indicate that they prefer to hire local people with strong backgrounds in marine and natural sciences. A basic premise of POLYPPS is that science education must draw not only from the latest advances in science and technology but also from the cultural contexts in which the learners are embedded and that this will achieve increased understanding and stewardship of ocean environments. Students in Oceanography 270 integrate traditional Hawaiian knowledge into their activities and presentations with the advice of local practitioners who share their experiences for incorporating both Hawaiian ways of learning and environmental practices.

Coopersmith, A.

2011-12-01

99

An Investigation into Excellent Tertiary Teaching: Emphasising Reflective Practice  

ERIC Educational Resources Information Center

This study is an attempt to understand better the complex nature of tertiary teaching by identifying and investigating the attributes of a group of excellent teachers in science departments of the University. In working with this group of teachers we examined what they say about their teaching and what they do in their teaching practice. Our…

Kane, Ruth; Sandretto, Susan; Heath, Chris

2004-01-01

100

A study of secondary science teacher efficacy and level of constructivist instructional practice implementation in West Virginia science classrooms  

NASA Astrophysics Data System (ADS)

The purpose of this study was to investigate the level of use of selected constructivist instructional practices and level of teacher efficacy in West Virginia secondary science classrooms. The study next sought to determine if a relationship existed between level of use of the constructivist practices and teacher efficacy. In addition the study sought to determine if differences existed in level of use of the selected constructivist practices and/or teacher efficacy based on selected demographic variables. The study was a mixed-methods design. First, a researcher-developed survey instrument was used to collect data regarding the level of use of constructivist instructional practices. Efficacy data were collected using an adapted (with permission) version of the Teacher Self-Efficacy Scale ( TSES) by Tschannen-Moran, Hoy, and Hoy (1998). The study population consisted of secondary science teachers (middle, junior, and high school) in the state of West Virginia. The last survey question allowed educators to volunteer for a short follow-up interview to clarify the quantitative data. Overall, West Virginia science teachers reported frequent use of the selected constructivist instructional practices. Few significant differences were found based on the selected demographic variables. West Virginia science teachers reported moderately high efficacy levels. Few significant differences were found based on selected demographic variables. A moderate but significant correlation was found between teacher efficacy level and the level of use of the selected constructivist practices. The follow-up interviews clarified concepts and revealed barriers to implementation of new practices in the science classroom.

Knapp, Amanda Kristen

101

The effect of teacher education level, teaching experience, and teaching behaviors on student science achievement  

NASA Astrophysics Data System (ADS)

Previous literature leaves us unanswered questions about whether teaching behaviors mediate the relationship between teacher education level and experience with student science achievement. This study examined this question with 655 students from sixth to eighth grade and their 12 science teachers. Student science achievements were measured at the beginning and end of 2006-2007 school year. Given the cluster sampling of students nested in classrooms, which are nested in teachers, a two-level multilevel model was employed to disentangle the effects from teacher-level and student-level factors. Several findings were discovered in this study. Science teachers possessing of advanced degrees in science or education significantly and positively influenced student science achievement. However, years of teaching experience in science did not directly influence student science achievement. A significant interaction was detected between teachers possessing an advanced degree in science or education and years of teaching science, which was inversely associated to student science achievement. Better teaching behaviors were also positively related to student achievement in science directly, as well as mediated the relationship between student science achievement and both teacher education and experience. Additionally, when examined separately, each teaching behavior variable (teacher engagement, classroom management, and teaching strategies) served as a significant intermediary between both teacher education and experience and student science achievement. The findings of this study are intended to provide insights into the importance of hiring and developing qualified teachers who are better able to help students achieve in science, as well as to direct the emphases of ongoing teacher inservice training.

Zhang, Danhui

102

Teaching the Foundations of Computational Science on the Undergraduate Level  

Microsoft Academic Search

\\u000a This paper describes a new course introduced at University of Erlangen-Nürnberg to teach the foundations of computational\\u000a science for undergraduates at the end of their second year. The course is a mandatory part of the curriculum in three different\\u000a computer science-related degree programs. The paper discusses the motivation for introducing the course, the topics chosen\\u000a for it, and the teaching

Christoph Freundl; Harald Köstler; Ulrich Rüde

2006-01-01

103

State Restrictions on Methyl Tertiary Butyl Ether (released in AEO2006)  

EIA Publications

By the end of 2005, 25 states had barred, or passed laws banning, any more than trace levels of methyl tertiary butyl ether (MTBE) in their gasoline supplies, and legislation to ban MTBE was pending in 4 others. Some state laws address only MTBE; others also address ethers such as ethyl tertiary butyl ether (ETBE) and tertiary amyl methyl ether (TAME). Annual Energy Outlook 2006 assumes that all state MTBE bans prohibit the use of all ethers for gasoline blending.

2006-01-01

104

What Makes Science Relevant?: Student Perceptions of Multimedia Case Learning in Ecology and Health  

ERIC Educational Resources Information Center

The perception of science as boring is a major issue for teachers at all instructional levels. Tertiary classes especially suffer from a reputation for being dry, instructor-centered, and irrelevant to the lives of students. However, previous research has shown that science can be interesting to students if it is presented in such a manner as to…

Wolter, Bjorn H. K.; Lundeberg, Mary A.; Bergland, Mark

2013-01-01

105

A Critical Appraisal of State Level Science Exhibition  

ERIC Educational Resources Information Center

Science exhibitions are really great opportunities to students as well as teachers to disseminate knowledge that they have, and to experience a variety of new inventions and innovations that also need wide dissemination. The great significance of exhibition is that it fosters acquisition of different process skills leading to the development of…

Nath, Baiju K.

2007-01-01

106

Category: Physical and Life Sciences Degree Level: Ph.D.  

E-print Network

#miza#on of pharmaceu#cal proper#es of a lead compound targe#ng human African trypanosomiasis by nanoformula, Department of PharmaceuRcal Sciences, Boston, MA, 02115. ABSTRACT Human African trypanosomiasis (HAT trypanosomiasis (HAT) · 60 million people at risk, affects 36 countries in subSaharan Africa · 100% fatal

Sridhar, Srinivas

107

Discovering Animal Ways, Elementary School Science, Level Three, Teaching Manual.  

ERIC Educational Resources Information Center

This pilot teaching unit is one of a series developed for use in elementary school science programs. This unit is designed to promote children's natural curiosity and to help those who show a reluctance to work with animals to overcome some of their fears. The student activities employ important scientific processes, such as observation,…

Hale, Helen E.

108

CalfScience: Extension Education at Many Levels  

ERIC Educational Resources Information Center

The issue of antimicrobial resistance in food animal agriculture was addressed by conducting clinical trials to assess alternatives to antimicrobials in dairy calf-raising and developing outreach to three different audiences. Current research was integrated into Extension programs for calf-raisers, animal science and veterinary students, and food…

Moore, Dale A.; Tellessen, Kathlyn; Sischo, William M.

2010-01-01

109

The Science Advancement through Group Engagement Program: Leveling the Playing Field and Increasing Retention in Science  

ERIC Educational Resources Information Center

How can colleges and universities keep an open gateway to the science disciplines for the least experienced first-year science students while also maintaining high standards that challenge the students with the strongest possible high school backgrounds? The Science Advancement through Group Engagement (SAGE) project targets cohorts of less…

Hall, Donna M.; Curtin-Soydan, Amanda J.; Canelas, Dorian A.

2014-01-01

110

Tertiary teledermatology: a systematic review.  

PubMed

Telemedicine is becoming widely used in healthcare. Dermatology, because of its visual character, is especially suitable for telemedicine applications. Most common is teledermatology between general practitioners and dermatologists (secondary teledermatology). Another form of the teledermatology process is communication among dermatologists (tertiary teledermatology). The objective of this systematic review is to give an overview of studies on tertiary teledermatology with emphasis on the categories of use. A systematic literature search on tertiary teledermatology studies used all databases of the Cochrane Library, MEDLINE (1966-November 2007) and EMBASE (1980-November 2007). Categories of use were identified for all included articles and the modalities of tertiary teledermatology were extracted, together with technology, the setting the outcome measures, and their results. The search resulted in 1,377 publications, of which 11 were included. Four categories of use were found: getting an expert opinion from a specialized, often academic dermatologist (6/11); resident training (2/11); continuing medical education (4/11); and second opinion from a nonspecialized dermatologist (2/11). Three modalities were found: a teledermatology consultation application (7/11), a Web site (2/11), and an e-mail list (1/11). The majority (7/11) used store-and-forward, and 3/11 used store-and-forward and real-time. Outcome measures mentioned were learning effect (6), costs (5), diagnostic accuracy (1), validity (2) and reliability (2), patient and physician satisfaction (1), and efficiency improvement (3). Tertiary teledermatology's main category of use is getting an expert opinion from a specialized, often academic dermatologist. Tertiary teledermatology research is still in early development. Future research should focus on identifying the scale of tertiary teledermatology and on what modality of teledermatology is most suited for what purpose in communication among dermatologists. PMID:20064068

van der Heijden, Job P; Spuls, Phyllis I; Voorbraak, Frans P; de Keizer, Nicolet F; Witkamp, Leonard; Bos, Jan D

2010-01-01

111

A Comparison of Social Science Textbook Readability and Students' Reading Levels.  

ERIC Educational Resources Information Center

The first phase of a study investigating textbook readability and students' reading levels used three traditional formulas to assess the readability levels of 51 primary textbooks from college introductory social science courses in 7 disciplines. The second phase investigated the relationship between the readability levels of students' texts,…

Townsend, Brenda S.; Wilkie, Carolyn J.

112

Classroom-Based Science Research at the Introductory Level: Changes in Career Choices and Attitude  

ERIC Educational Resources Information Center

Our study, focused on classroom-based research at the introductory level and using the Phage Genomics course as the model, shows evidence that first-year students doing research learn the process of science as well as how scientists practice science. A preliminary but notable outcome of our work, which is based on a small sample, is the change in…

Harrison, Melinda; Dunbar, David; Ratmansky, Lisa; Boyd, Kimberly; Lopatto, David

2011-01-01

113

Even Low Levels of Alcohol during Pregnancy Can Affect Fetal Brain Development. Science Briefs  

ERIC Educational Resources Information Center

"Science Briefs" summarize the findings and implications of a recent study in basic science or clinical research. This brief reports on the study "Effects of Prenatal Alcohol Exposure on GABAergic Neurons" (V. C. Cuzone; P. W. L. Yeh; Y. Yanagawa; K. Obata; and H. H. Yeh). Study results indicate that even exposure to low levels of alcohol during…

National Scientific Council on the Developing Child, 2008

2008-01-01

114

Methyl Tertiary Butyl Ether (MTBE): Drinking Water  

NSDL National Science Digital Library

MTBE, a gasoline oxygenater additive, has been detected in ground water sources throughout different parts of the country. These ground water sources are often the source of drinking water, and the presence of methyl tertiary butyl ether in even minute quantities can make the water undrinkable. Research to date has not conclusively identified any quantitative level at which serious health risks may occur. This site provides information on behalf of the Environmental Protection Agency on the concerns and occurence of MTBE in drinking water.

115

The Petasis Reaction: Microscale Synthesis of a Tertiary Amine Antifungal Analog  

ERIC Educational Resources Information Center

Students prepare a tertiary amine antifungal analog in an upper-level undergraduate organic laboratory. A microscale Petasis reaction is performed to generate a liquid compound readily characterized via IR and proton NMR spectroscopy. The biological relevance of the product is highlighted, with the tertiary amine scaffold being an important…

Koroluk, Katherine J.; Jackson, Derek A.; Dicks, Andrew P.

2012-01-01

116

Willing and Enabled: The Academic Outcomes of a Tertiary Enabling Program in Regional Australia  

ERIC Educational Resources Information Center

This paper examines the achievement levels of students undertaking the Tertiary Enabling Program (TEP) at La Trobe University. The TEP is an alternative pathway program that traverses multiple institutions, campuses, and disciplinary areas, and is designed to prepare a diverse student cohort for tertiary study. The Program integrates several…

Andrewartha, Lisa; Harvey, Andrew

2014-01-01

117

The levels of edit. [technical writing in science  

NASA Technical Reports Server (NTRS)

The editorial process is analyzed, and five levels of edit are identified. These levels represent cumulative combinations of nine types of edit: (1) coordination, (2) policy, (3) integrity, (4) screening, (5) copy clarification, (6) Mechanical Style, (7) Language, and (9) substantive. The levels and types of edit, although developed for specific use with external reports at the Jet Propulsion Laboratory, cover the general range of technical editing, especially as it applies to an in-house technical publications organization. Each type of edit is set forth in terms of groups of actions to be performed by the editor. The edit-level concept has enhanced understanding and communication among editors, authors, and publications managers concerning the specific editorial work to be done on each manuscript. It has also proved useful as a management tool for estimating and monitoring cost.

Vanburen, R.; Buehler, M. F.; Wallenbrock, D. (editor)

1976-01-01

118

Long-Term Ecological Research and Network-Level Science  

NASA Astrophysics Data System (ADS)

With every passing year, the effects of global environmental change are becoming more pervasive and are occurring at a more accelerated pace. Climate change, land use change, atmospheric nitrogen deposition, ocean acidification and sea level rise, loss of biodiversity, and homogenization of Earth's ecosystems are all manifestations of human activities. These short- and long-term effects of environmental changes continue to mount.

Collins, Scott L.; Childers, Daniel L.

2014-08-01

119

Preparation for Tertiary Success Information  

E-print Network

/ Version2.0 © Charles Darwin University CRICOS provider 00300K First published Jan 2012 Version1 Revised Tertiary Education (BIITE) and Charles Darwin University (CDU) Acknowledgement: Materials developed Knowledges and Education (ACIKE) which is a partnership between Batchelor Institute and Charles Darwin

120

Curriculum Design and Tertiary Education  

ERIC Educational Resources Information Center

The past decade has seen enormous changes in the quality and quantity of mathematics taught at secondary school. These changes have had a cumulative effect on the readiness of mathematics students for tertiary education. Furthermore the need for university staff to be accountable to both community and students adds to the responsibility of…

Hockman, Meira

2005-01-01

121

Quaternary Science Reviews 21 (2002) 17 Ice sheets and sea level of the Last Glacial Maximum  

E-print Network

Ltd. All rights reserved. 1. Introduction The Environmental Processes of the Ice-Age: Land, Oceans understanding of the ice- age climate system. One outstanding issue, that of ice sheets and sea level of the LGMQuaternary Science Reviews 21 (2002) 1­7 Ice sheets and sea level of the Last Glacial Maximum Peter

Ingólfsson, �lafur

122

Effects of Brain-Based Learning Approach on Students' Motivation and Attitudes Levels in Science Class  

ERIC Educational Resources Information Center

The purpose of the study was to examine the effect of brain-based learning approach on attitudes and motivation levels in 8th grade students' science classes. The main reason for examining attitudes and motivation levels, the effect of the short-term motivation, attitude shows the long-term effect. The pre/post-test control group research model…

Akyurek, Erkan; Afacan, Ozlem

2013-01-01

123

Removal of sulfur dioxide from waste gases. [Tertiary amines  

SciTech Connect

In this efficient, low-cost sulfur dioxide-removal process, a waste-gas stream (such as stack gases) contacts free selective tertiary amines having basic strengths greater than about pK 5 (such as trimethylamine, triethylamine, and tri-n-butylamine) to form a coordinate covalent complex of the amine and the sulfur dioxide. The thermal regeneration of this sufficiently stable complex then liberates a stream of sulfur dioxide and a stream of residual gases while providing the regenerated tertiary amine for collection and reuse in a subsequent sulfur dioxide-cleanup step. The coordinate covalent complex reacts with even very small concentrations of sulfur dioxide and reduces it to undetectable levels. Carbon dioxide in the waste-gas stream will not interfere with efficient cleanup because the selected tertiary amine does not react with it.

Klass, D.L.; Conrad, J.R.

1980-06-17

124

Late Tertiary paleomagnetic data from Leyte, Philippines: implications for Philippine fault zone motion  

E-print Network

LATE TERTIARY PALEOMAGNETIC DATA FROM LEYTE, PHILIPPINES: IMPLICATIONS FOR PHILIPPINE FAULT ZONE MOTION A Thesis by JAY TIMOTHY COLE Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirements... for the degree of NIASTER OF SCIENCE August 1988 Major Subject: Geophysics LATE TERTIARY PALEOMAGNETIC DATA FROM LEYTE, PHILIPPINES: INIPLICATIONS FOR PHILIPPINE FAULT ZONE MOTION A Thesis JAY TIMOTHY COLE Approved as to style and content by: Robert J...

Cole, Jay Timothy

1988-01-01

125

Differential workload calculation and its impact on lab science instruction at the community college level  

NASA Astrophysics Data System (ADS)

The calculation of workload for science instructors who teach classes with laboratory components at the community college level is inconsistent. Despite recommendations from the National Research Council (1996) and the large body of evidence which indicates that activity-based instruction produces greater learning gains than passive, lecture-based instruction, many community colleges assign less value to the time spent in science lab than in lecture in workload calculations. This discrepancy is inconsistent with both current state and nation-wide goals of science excellence and the standards set by the American Chemical Society (2009) and the American Association of Physics Teachers (2002). One implication of this differential lab-loading policy is that the science instructors must teach more hours per week to make the same workload as their colleagues in other disciplines which have no formal laboratory activities. Prior to this study, there was no aggregate data regarding the extent of this policy at the community college level nor of its possible impact upon instruction. The input of full-time two-year college members of four different professional science organizations was solicited and from their responses, it is clear that differential loading of lab hours is common and widely variable. A majority of the respondents to this study had their hours in lab assigned less credit than their hours in lecture, with multiple perceived impacts upon lab preparation, assistance, revision, and follow-up activities. In combination with open-ended comments made by study participants, the results suggest that science instructors do perceive impacts upon their ability to teach science labs in a pedagogically current and challenging manner when their hours spent in lab instruction are counted for less than their hours in lecture. It is hoped that the information from this study will be used to implement improvements in the working conditions needed to advance science instruction and student science outcomes at the community college level.

Boyd, Beth Nichols

126

Categorical principles, techniques and results for high-level-replacement systems in computer science  

Microsoft Academic Search

The aim of this paper is to give an introduction how to use categorical methods in a specific field of computer science: The field of high-level-replacement systems has its roots in the well-established theories of formal languages, term rewriting, Petri nets, and graph grammars playing a fundamental role in computer science. More precisely, it is a generalization of the algebraic

Hartmut Ehrig; Michael Löwe

1993-01-01

127

The cretaceous-tertiary transition.  

PubMed

The fossil sequences from cores across the Cretaceous-Tertiary boundary show a, range of transition times and transition time intervals depending on the fossil indicators and the location of the site. These variations, together with the pattern of iridium distribution with depth at some sites, differences in total amounts of iridium, variations in noble metal abundances normalized to extraterrestrial concentrations, the depositional effects that might be expected in a reducing environment, and the clay mineralogy of the boundary layer clays, put into question the interpretation that an extraterrestrial event was the cause of the faunal changes and the iridium anomaly in the vicinity of the Cretaceous-Tertiary transition. It seems more likely that an explanation for the changes during the transition will come from continued examination of the great variety of terrestrial events that took place at that time, including extensive volcanism, major regression of the sea from the land, geochemical changes, and paleoclimatic and paleoceanographic changes. PMID:17735175

Officer, C B; Drake, C L

1983-03-25

128

Position Description: Assistant Professor of Political Science with an emphasis in Political The Department of Political Science at Colorado State University invites applications for an entry-level,  

E-print Network

Position Description: Assistant Professor of Political Science with an emphasis in Political Theory The Department of Political Science at Colorado State University invites applications for an entry-level, tenure, Political Theory Position, Department of Political Science, Colorado State University, Fort Collins, CO

129

Predicting Scientific Understanding of Prospective Elementary Teachers: Role of Gender, Education Level, Courses in Science, and Attitudes toward Science and Mathematics  

ERIC Educational Resources Information Center

A multiple regression analysis of the relationship between prospective teachers' scientific understanding and Gender, Education Level (High School, College), Courses in Science (Biology, Chemistry, Physics, Earth Science, Astronomy, and Agriculture), Attitude Towards Science, and Attitude Towards Mathematics is reported. Undergraduate elementary…

Kumar, David D.; Morris, John D.

2005-01-01

130

Probing the Natural World, Level III, Teacher's Edition: Crusty Problems. Intermediate Science Curriculum Study.  

ERIC Educational Resources Information Center

This is the teacher's edition of one of the eight units of the Intermediate Science Curriculum Study (ISCS) for level III students (grade 9). This unit focuses on processes that shape the earth. Optional excursions, in addition to the activities, are suggested for students who wish to study an area in greater depth on an individualized basis. An…

Bonar, John R., Ed.; Hathway, James A., Ed.

131

ICES Journal of Marine Science, 55: 467481. 1998 Diet composition and trophic levels of marine mammals  

E-print Network

mammals D. Pauly, A. W. Trites, E. Capuli, and V. Christensen Pauly, D., Trites, A. W., Capuli, E., and Christensen, V. 1998. Diet composition and trophic levels of marine mammals. ­ ICES Journal of Marine Science, 55: 467­481. Standardized diet compositions were derived for 97 species of marine mammals from

132

Computational techniques in tribology and material science at the atomic level  

NASA Technical Reports Server (NTRS)

Computations in tribology and material science at the atomic level present considerable difficulties. Computational techniques ranging from first-principles to semi-empirical and their limitations are discussed. Example calculations of metallic surface energies using semi-empirical techniques are presented. Finally, application of the methods to calculation of adhesion and friction are presented.

Ferrante, J.; Bozzolo, G. H.

1992-01-01

133

Factors Influencing Pre-Service Science Teachers' Imagination at the Microscopic Level in Chemistry  

ERIC Educational Resources Information Center

This study explores the mental images at the microscopic level of matter created by 22 preservice science teachers in Oman. Participants were encouraged during a guided imagery session to construct mental images for a scenario written about the explanation of the reaction of sodium in water. They were then asked to describe what they envisioned in…

Al-Balushi, Sulaiman M.

2009-01-01

134

A Summary of the Cassini System-Level Thermal Balance Test: Science Instruments  

Microsoft Academic Search

The Cassini spacecraft, NASA's mission to investigate the Saturn system, has undergone a systenl-level thermal balance test program to permit verification of the science instrument thermal designs in the simulated worst-case environments. Additionally, other objectives such as functional checkout, collection of thermal data for analytical model adjustment, and flight temperature transducer verification were also attained. In the interest of cost

Glenn T. Tsuyuki; Virgil Mireles; Arturo Avila

135

Using Reading Grade Level to Assess Readability of Selected Plant and Soil Science Textbooks.  

ERIC Educational Resources Information Center

Reported is a study designed to determine whether reading grade level (RGL) assessment techniques used for elementary and secondary education textbooks would discriminate among plant and soil science textbooks. The study was to select the RGL indices suited to quantify the readability of these sources, and to identify the factors affecting…

Graveel, John G.; Fribourg, Henry A.

1987-01-01

136

Pedagogical Issues in Teaching Upper-Level Science Courses at a "Community University"  

ERIC Educational Resources Information Center

The authors teach upper-level science courses in cell biology, genetics, and biochemistry at a public, four-year "community university" that serves a demographically diverse population of traditional and nontraditional students. In this article, they describe some of the issues they have found to be particularly significant at their "community…

Deutch, Charles E.; Jurutka, Peter W.; Marshall, Pamela A.

2008-01-01

137

Population Education in Science: Some Sample Lessons for the Secondary Level.  

ERIC Educational Resources Information Center

This booklet consists of six sample lessons integrating population education into science instruction. It is one of four in a series. Materials differ from those in an earlier series (1980) in that lessons are presented at the secondary level only; there is no duplication of lessons from the earlier series in terms of content and teaching…

United Nations Educational, Scientific, and Cultural Organization, Bangkok (Thailand). Regional Office for Education in Asia and the Pacific.

138

The Development of Multi-Level Audio-Visual Teaching Aids for Earth Science.  

ERIC Educational Resources Information Center

The project consisted of making a multi-level teaching film titled "Rocks and Minerals of the Ouachita Mountains," which runs for 25 minutes and is in color. The film was designed to be interesting to earth science students from junior high to college, and consists of dialogue combined with motion pictures of charts, sequential diagrams, outcrops,…

Pitt, William D.

139

Cretaceous-Tertiary findings, paradigms and problems  

NASA Technical Reports Server (NTRS)

The asteroid hypothesis has stimulated numerous studies of the paleontological record at Cretaceous/Tertiary time as well as of geological indicators of environmental crisis preserved in the rock record. Both extinctions and geological anomalies often occur at times that do not appear to be synchronous or instantaneous. The record includes paleontological indicators of dinosaurs, terrestrial flora, marine planktonic organisms, and shallow water marine macrofauna and geological phenomena include occurrences of iridium and other platinum metals, trace elements, clay mineralogy, shocked minerals, soot, microspherules, and isotopes of osmium, strontium and carbon. These findings are reviewed in the context of the alternate hypotheses of an exogenic cause, involving either a single asteroid impact or multiple commentary impacts, and an endogenic cause, involving intense global volcanism and major sea level regression.

Officer, C. B.; Drake, C. L.

1988-01-01

140

Tertiary age for upper Nubian sandstone formation, central Sudan  

SciTech Connect

In central and northern Sudan, oil exploration is now active in the basins containing sediments of the Nubian Sandstone Formation. On the evidence of planned pipeline construction, significant volumes of oil appear to have been discovered in southwestern Sudan. A newly discovered flora from the upper Nubian Sandstone Formation near Khartoum in central Sudan is Tertiary in age. The flora is well preserved, and comprises leaves, flowers, and fruits, many not yet described. At the generic level, they are comparable to forms that are known fro the Eocene to Miocene. Aquatic plants indicate a lacustrine paleoenvironment; humid tropical forests thrived on the lakeshores. The Nubian Sandstone Formation of Sudan had been considered to be entirely of Cretaceous age; this new flora shifts the upper boundary into the Tertiary. The Tertiary Hudi Chert, found in scattered outcrops in the region of Atbara, was considered to overlie the Nubian Sandstone Formation. The authors suggest that the Hudi Chert is partly age equivalent to the Tertiary upper Nubian Sandstone at Jebel Mudaha.

Prasad, G.; Lejal-Nicol, A.; Vaudois-Mieja, N.

1986-02-01

141

Endosymbiotic gene transfer in tertiary plastid-containing dinoflagellates.  

PubMed

Plastid establishment involves the transfer of endosymbiotic genes to the host nucleus, a process known as endosymbiotic gene transfer (EGT). Large amounts of EGT have been shown in several photosynthetic lineages but also in present-day plastid-lacking organisms, supporting the notion that endosymbiotic genes leave a substantial genetic footprint in the host nucleus. Yet the extent of this genetic relocation remains debated, largely because the long period that has passed since most plastids originated has erased many of the clues to how this process unfolded. Among the dinoflagellates, however, the ancestral peridinin-containing plastid has been replaced by tertiary plastids on several more recent occasions, giving us a less ancient window to examine plastid origins. In this study, we evaluated the endosymbiotic contribution to the host genome in two dinoflagellate lineages with tertiary plastids. We generated the first nuclear transcriptome data sets for the "dinotoms," which harbor diatom-derived plastids, and analyzed these data in combination with the available transcriptomes for kareniaceans, which harbor haptophyte-derived plastids. We found low level of detectable EGT in both dinoflagellate lineages, with only 9 genes and 90 genes of possible tertiary endosymbiotic origin in dinotoms and kareniaceans, respectively, suggesting that tertiary endosymbioses did not heavily impact the host dinoflagellate genomes. PMID:24297445

Burki, Fabien; Imanian, Behzad; Hehenberger, Elisabeth; Hirakawa, Yoshihisa; Maruyama, Shinichiro; Keeling, Patrick J

2014-02-01

142

Endosymbiotic Gene Transfer in Tertiary Plastid-Containing Dinoflagellates  

PubMed Central

Plastid establishment involves the transfer of endosymbiotic genes to the host nucleus, a process known as endosymbiotic gene transfer (EGT). Large amounts of EGT have been shown in several photosynthetic lineages but also in present-day plastid-lacking organisms, supporting the notion that endosymbiotic genes leave a substantial genetic footprint in the host nucleus. Yet the extent of this genetic relocation remains debated, largely because the long period that has passed since most plastids originated has erased many of the clues to how this process unfolded. Among the dinoflagellates, however, the ancestral peridinin-containing plastid has been replaced by tertiary plastids on several more recent occasions, giving us a less ancient window to examine plastid origins. In this study, we evaluated the endosymbiotic contribution to the host genome in two dinoflagellate lineages with tertiary plastids. We generated the first nuclear transcriptome data sets for the “dinotoms,” which harbor diatom-derived plastids, and analyzed these data in combination with the available transcriptomes for kareniaceans, which harbor haptophyte-derived plastids. We found low level of detectable EGT in both dinoflagellate lineages, with only 9 genes and 90 genes of possible tertiary endosymbiotic origin in dinotoms and kareniaceans, respectively, suggesting that tertiary endosymbioses did not heavily impact the host dinoflagellate genomes. PMID:24297445

Imanian, Behzad; Hehenberger, Elisabeth; Hirakawa, Yoshihisa; Maruyama, Shinichiro

2014-01-01

143

Primary, secondary, and tertiary effects of phototherapy: a review  

NASA Astrophysics Data System (ADS)

The classification of the cellular effects of phototherapy into primary, secondary and tertiary types is an aid to understanding variation in the predictability of the events that follow its application. Primary effects are generally restricted to the absorption of photons by cytochromes and catalytic interactions with these and other intracellular molecules. If suprathreshold, they stimulate cell activity, initiating secondary anabolic effects in those cells affected by the photons. These events can also be initiated by nonphotonic stimuli. Some of the secondary effects, such as growth factor secretion, can produce effects in cells that did not absorb photons. It is proposed that this group of effects be classified as tertiary. Primary effects are strongly predictable, secondary effects less so, being dependent on cell sensitivity, while tertiary effects are the least predictable, being affected by variation in both the internal and external environment and by intercellular interactions. The investigation of primary and secondary effects of phototherapy can be used to determine which irradiation parameters are ineffective in vitro and therefore cannot be effective in vivo. Since tertiary effects predominate in vivo only clinical testing can demonstrate which parameters are most likely to be effective, and with what level of predictability. It is essential that all relevant exposure conditions be recorded and disseminated if experimental work is to be of clinical value. It is also essential that all relevant information about the target of phototherapy, be it molecule, organelle, cell, healthy volunteer or patient, be recorded and disseminated.

Dyson, Mary

2006-02-01

144

Effects of tactual and kinesthetic instructional resources on simple recall and higher-level cognitive science achievement and attitudes toward science of third-grade suburban students  

NASA Astrophysics Data System (ADS)

This researcher investigated the effects of tactual and kinesthetic instructional resources on the simple recall and higher-level cognitive science achievement and attitudes toward science of third-grade suburban students in a northern New Jersey school district. The Learning Style Inventory (LSI) (Dunn, Dunn, & Price, 1996) was administered to ascertain the identity of the learning-style perceptual preferences of all 59 third-graders who completed the three science units. Each of the three classes was presented two science units using learning-style instructional resources; one science unit was taught using traditional methods. All three science units were completed in a six-week period. Students were administered a pretest and posttest for each science unit and the Semantic Differential Scale (Pizzo, 1981) at the conclusion of each science unit. Analysis of variance (ANOVA) assessed the effects of treatments and attitudes toward science. The statistical analysis of this study revealed a significant difference (p < 0.0001) between students' simple recall science achievement posttest scores when taught tactually and/or kinesthetically compared to when they were taught science traditionally. Furthermore, the Contingency Table analysis, using Fisher's Exact Test indicated a significant difference (p = 0.00008) between the higher-level cognitive science achievement posttest scores when students are taught science tactually and/or kinesthetically compared to when they are taught science traditionally. The findings of this study supported the view when tactual and/or kinesthetic methods were employed, higher achievement gains were realized for simple recall and higher-level cognitive science achievement. Further recommendations called for a reexamination of science instructional methods employed in our elementary classroom.

Searson, Robert Francis

145

Running head: STUDENTS' REASONING & LEVEL OF INTERACTIVITY 1 Students' Reasoning and the Level of Interactivity in Science Content Courses for Future  

E-print Network

Running head: STUDENTS' REASONING & LEVEL OF INTERACTIVITY 1 Students' Reasoning and the Level #12;STUDENTS' REASONING & LEVEL OF INTERACTIVITY 2 Abstract As part of a study of the science preparation of elementary school teachers, we investigated the quality of students' reasoning and explored

Zollman, Dean

146

Decision-Making in Secondary and Tertiary Interventions of School-Wide Systems of Positive Behavior Support  

ERIC Educational Resources Information Center

Although the conceptual foundations of PBS at the universal level have been widely described and presented in the literature, secondary and tertiary interventions have been presented through very limited examples. This paper defines the key features of secondary and tertiary interventions and presents a decision-making process to guide schools…

Scott, Terrance M.; Alter, Peter J.; Rosenberg, Michael; Borgmeier, Chris

2010-01-01

147

Linguistic Resources Used in Grade 8 Students' Submicro Level Explanations—Science Items from TIMSS 2007  

NASA Astrophysics Data System (ADS)

Explanations involving submicro levels of representation are central to science education, but known to be difficult for students in secondary school. This study examines students' written explanations of physical and chemical phenomena regarding matter and changes in matter, in a large-scale test. This is done in order to understand linguistic challenges in constructing submicro level explanations involving the particle model of matter. Drawing from systemic functional linguistics, the lexicogrammatics used in explanations for realising experiential meaning in student explanations were analysed. We used answers to two partly constructed response items from the Swedish part of Trends in International Mathematics and Science Studies 2007, grade 8, to sort out explanations referring to the particle model of matter. These answers (86 from 954) were analysed regarding choices of vocabulary and grammar to distinguish between macro and submicro level of representation. The results show that students use a wide variety of lexicogrammatical resources to realise what happens on both macro and submicro level of representation, with greater diversity of verbs on the submicro level of explanation. The results suggest an uncertainty about the distinction between macro and submicro level of explanation.

Frändberg, Birgitta; Lincoln, Per; Wallin, Anita

2013-12-01

148

Towards Tertiary Education. Staff and Staff Development.  

ERIC Educational Resources Information Center

This report is intended as a resource for all those interested in staff development, especially in the tertiary education context. It describes the staff development project in the first two years of a new tertiary college--Harlow Technical College in England. An introduction and a description of the context of the project begin the report.…

Ratcliffe, Joan

149

Adapting Cooperative Learning in Tertiary ELT  

ERIC Educational Resources Information Center

An updated guideline for tertiary ELT in China has shifted the emphasis to the development of learners' ability to communicate in English. Using group work and getting learners actively involved in the actual use of English are highlighted more than before. This article focuses on adapting cooperative learning methods for ELT with tertiary

Ning, Huiping

2011-01-01

150

Extraterrestrial Cause for the Cretaceous-Tertiary Extinction  

Microsoft Academic Search

Platinum metals are depleted in the earth's crust relative to their cosmic abundance; concentrations of these elements in deep-sea sediments may thus indicate influxes of extraterrestrial material. Deep-sea limestones exposed in Italy, Denmark, and New Zealand show iridium increases of about 30, 160, and 20 times, respectively, above the background level at precisely the time of the Cretaceous-Tertiary extinctions, 65

Luis W. Alvarez; Walter Alvarez; Frank Asaro; Helen V. Michel

1980-01-01

151

Mid-tertiary ash flow tuff cauldrons, southwestern New Mexico  

Microsoft Academic Search

Characteristics of 28 known or suspected mid-Tertiary ash-flow tuff cauldrons in New Mexico are described. The largest region is 40 km in diameter, and erosional and block faulting processes have exposed levels as far down as the plutonic roots. The study supports a five-stage process: precursor, caldera collapse, early post-collapse, volcanism, major ring-fracture volcanism, and hydrothermal activity. The stages can

W. E. Elston

1984-01-01

152

Science education in the Republic of Ireland: At first and second levels  

NASA Astrophysics Data System (ADS)

In recent years, the geoscience community around the world has been faced with a new series of critical problems associated with the management of waste and protection of the environment. One of the most pressing issues facing our civilization today is the production of enough science capability in geology, hydrogeology, engineering, and biology to meet the demand for the solution of these problems. Many countries are developing special programs similar to those in the United States of the National Academy of sciences, American Geological Institute, Geological Society of America, and the American Association of Petroleum Geologists. The editors of Environmental Geology have decided to begin a series of articles for the “Views and News” section of the journal on programs of this type being implemented around the world. The first of this series is by geoscientist Breda Naughton, Assistant Chief Executive for the National Council for Curriculum and Assessment, titled “Science Education in the Republic of Ireland: At First and Second Levels,” which follows. The overall education policy of the National Council for Curriculum and Assessment (NCCA) for first and second level education is to provide a balanced education for our young people which will contribute to their full development as individuals and give them the knowledge, skills, and competencies that will enable them to live productive and creative lives. Science is seen as an essential component of such an education in today's world.

Naughton, B.

1995-06-01

153

Pedagogical Issues in Teaching Upper-Level Science Courses at a "Community University"  

NSDL National Science Digital Library

The authors teach upper-level science courses in cell biology, genetics, and biochemistry at a public, four-year "community university" that serves a demographically diverse population of traditional and nontraditional students. In this article, they describe some of the issues they have found to be particularly significant at their "community university" and their approaches to them. Through these different pedagogical strategies, they are attempting to ameliorate differences in student background and prior course work within the time constraints of their students.

Deutch, Charles E.; Marshall, Pamela A.; Jurutka, Peter W.

2008-05-01

154

Government of India Department of Science & Technology  

E-print Network

Government of India Department of Science & Technology Department of Biotechnology Australian for bilateral collaboration in science Jointly managed by Australian and Indian governments Supports & Technology (DST), Government of India & Department of Industry, Innovation, Science, Research and Tertiary

Kumar, M. Jagadesh

155

Research in Science Education, 1994. Selected Refereed Papers from the Annual Conference of the Australasian Science Education Research Association (25th, Hobart, Tasmania, Australia, July 10-13, 1994).  

ERIC Educational Resources Information Center

This volume contains 41 papers, 10 abstracts/research notes, and an after-dinner speech "The Book of Genesis and the Chronicles of the People of ASERA (Australasian Science Education Research Association). Paper titles include: "Improving students' understanding of carbohydrate metabolism in first-year Biochemistry at tertiary level"; "Students'…

Gardner, Paul L., Ed.

1994-01-01

156

Life Science Teachers' Discourse on Assessment: A Valuable Insight into the Variable Conceptions of Assessment in Higher Education  

ERIC Educational Resources Information Center

Teachers' conceptions of teaching, including assessment practices, are substantial in directing student learning. Our article refers to assessment at tertiary level biological education. We studied life science (more specifically microbiology-related) teachers' assessment discourse describing how they understood assessment as part of…

Halinen, Katrianna; Ruohoniemi, Mirja; Katajavuori, Nina; Virtanen, Viivi

2014-01-01

157

Measuring Computer Science Knowledge Level of Hungarian Students Specialized in Informatics with Romanian Students Attending a Science Course or a Mathematics-Informatics Course  

ERIC Educational Resources Information Center

An analysis of Information Technology knowledge of Hungarian and Romanian students was made with the help of a self developed web based Informatics Test. The goal of this research is an analysis of the Computer Science knowledge level of Hungarian and Romanian students attending a Science course or a Mathematics-Informatics course. Analysed was…

Kiss, Gabor

2012-01-01

158

A Science Faculty's Transformation of Nature of Science Understanding into His Teaching Graduate Level Chemistry Course  

ERIC Educational Resources Information Center

This is an interpretive case study to examine the teaching of an experienced science faculty who had a strong interest in teaching undergraduate and graduate science courses and nature of science specifically. It was interested in how he transformed knowledge from his experience as a scientist and his ideas about nature of science into forms…

Aydin, Sevgi

2015-01-01

159

Predicting Scientific Understanding of Prospective Elementary Teachers: Role of Gender, Education Level, Courses in Science, and Attitudes Toward Science and Mathematics  

NASA Astrophysics Data System (ADS)

A multiple regression analysis of the relationship between prospective teachers' scientific understanding and Gender, Education Level (High School, College), Courses in Science (Biology, Chemistry, Physics, Earth Science, Astronomy, and Agriculture), Attitude Towards Science, and Attitude Towards Mathematics is reported. Undergraduate elementary science students ( N = 176) in an urban doctoral-level university in the United States participated in this study. The results of this study showed Gender, completion of courses in High School Chemistry and Physics, College Chemistry and Physics, and Attitudes Toward Mathematics and Science significantly correlated with scientific understanding. Based on a regression model, Gender, and College Chemistry and Physics experiences added significant predictive accuracy to scientific understanding among prospective elementary teachers compared to the other variables.

Kumar, David D.; Morris, John D.

2005-12-01

160

Teach Me to Write; but Respec' Meh Right: A Critical Exploration of Vernacular Accommodation in Tertiary Education for All in Trinidad and Tobago  

ERIC Educational Resources Information Center

Since the introduction of the Education for All policy of the Government Assistance for Tuition Expenses (GATE) in Trinidad and Tobago, more tertiary level classrooms have been furnished with mixed linguistic and academic abilities and have accommodated more non-traditional tertiary-level entrants into the educational system. The expansion of the…

Figuera, Renée; Ferreira, Leiba-Ann

2014-01-01

161

High Interest - Low Vocabulary Science Books, Reading Level Grades 1-4 (Prepared for the Remedial Reading Teacher).  

ERIC Educational Resources Information Center

This booklist is intended for elementary school science students with high interest and low vocabulary skills. The Spache Readability Scale, Dale-Chall formula, sentence structure, paragraph flow, illustration, and diagram analysis or publishers stated grade level were used to determine grade level designations. The included interest level varies…

Gott, Margaret E., Comp.; Wailes, James R., Comp.

162

A Comparative Study of Turkish Elementary and Science Education Major Students' Knowledge Levels at the Popular Biotechnological Issues  

ERIC Educational Resources Information Center

The purpose of this study was to determine the knowledge levels of popular biotechnological issues of Turkish science and elementary teacher candidates. A questionnaire was administered during 2006-2007 school term to 336 students pursuing their education in the departments of science and elementary education in two Turkish universities. The…

Turkmen, Lutfullah; Darcin, Emine Selcen

2007-01-01

163

Relationships of Preservice Early Childhood Teachers' Cultural Values, Ethical and Cognitive Developmental Levels, and Views of Nature of Science  

ERIC Educational Resources Information Center

This study explored relationships between preservice early childhood teachers' views of nature of science (NOS), cognitive developmental levels, and their cultural values. Using the Views of Nature of Science Questionnaire (VNOS-B) and interviews, we assessed views of NOS. The Learning Context Questionnaire (LCQ) was used to determine the…

Akerson, Valarie L.; Buzzelli, Cary A.

2007-01-01

164

Strategic Alliance to Advanced Technological Education through Enhanced Mathematics, Science, Technology, and English Education at the Secondary Level  

ERIC Educational Resources Information Center

This document (book) reports on the Strategic Alliance to Advance Technological Education through Enhanced Mathematics, Science, Technology, and English Education at the Secondary Level, funded by National Science Foundation. It was a collaborative partnership involving the Rockford Public Schools, Rock Valley College, and Northern Illinois…

Scarborough, Jule Dee

2004-01-01

165

Tertiary aralkyl urethanes and isocyanates derived therefrom  

SciTech Connect

Production of tertiary aralkyl isocyanates, such as tetramethyl xylylene diisocyanates, by thermal cracking of corresponding urethanes formed by addition of corresponding olefins and carbamic acid esters at moderate temperatures and in the presence of acid catalyst.

Singh, B.; Chang, L.W.; Forgione, P.S.

1984-03-27

166

West Hackberry Tertiary Project, Class I  

SciTech Connect

The West Hackberry Tertiary Project is a field test of the concept that air injection can generate tertiary oil recovery through the Double Displacement Process. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil through gravity drainage. The novel aspect of this project is the use of air as the injection fluid. In Gulf Coast oil reservoirs with pronounced bed dip, reservoir performance has shown that gravity drainage recoveries average 80% to 90% of the original oil in place while water drive recoveries average 50% to 60% of the original oil in place. The target for tertiary oil recovery with the Double Displacement Process is the incremental oil between the 50% to 60% water drive recoveries and the 80% to 90% gravity drainage recoveries.

Haley, Kenneth A.; Gillham, Travis H.; Yannimaras, Demetrios

2002-03-04

167

The Changing Infrastructure of Tertiary Education.  

ERIC Educational Resources Information Center

Presents summaries of presentations delivered at the Programme on Educational Building seminar "The Changing Infrastructure of Tertiary Education", including topics on facility and educational quality, university building ownership, and indicators on strategic performance and equitable financing. (Contains Seminar conclusions.) (GR)

PEB Exchange, 2000

2000-01-01

168

Moving toward equitable, systemic science education reform: The synergy among science education and school-level reforms in an urban middle school  

NASA Astrophysics Data System (ADS)

The purpose of this study was to develop an understanding of the relationships among school-level and science education reform efforts and how, collectively, they contribute to the progress of equitable, systemic science education reform. A case study research design was employed to gather both qualitative and quantitative data between 1995 and 1999. The site of this study is a non-selective, urban middle school in a large district that participated in several reform efforts. These reforms include both efforts focused on school-level change and efforts focused on change in science teaching and learning. Its program incorporates aspects of several school-level reforms---from the underlying Paideia philosophy, to structural characteristics of middle schools, to site-based decision-making, to its status as a magnet school, to its participation as a professional development school. Further, the participation of all science teachers in the intensive, standards-based professional development offered by Ohio's systemic reform of mathematics and science created a critical mass of reform-oriented teachers who supported one another as they incorporated reform-based practices into their teaching. The interplay of the reform efforts has manifested in a high level of science achievement in comparison to the school's district. Addressing the third component of O'Day and Smith's model for systemic reform, the need for school-level change to enable implementation of curriculum frameworks and aligned policies, this study illustrates two important points. First, the high-quality teacher professional development increased teachers' capacity to change their practices by enhancing their knowledge of and skills in implementing standards-based teaching practices. Second, because of the synchrony among the school-level reforms and between the school-level and science education reforms, the context of Webster provided a supportive environment in which lasting changes in science teaching and learning were implemented. Science education reform efforts were mediated by the school's context to create an environment in which the reform practices could be implemented and sustained. Using Kahle's (1998) Equity Metric, this study demonstrates that the synergy of the policies and practices of school-level and science education reforms can contribute to the progress of equitable, systemic science education reform.

Kelly, Mary Kathryn

169

A Comparison of Middle and Junior High Science Teachers' Levels of Efficacy and Knowledge of Developmentally Appropriate Curriculum and Instruction.  

ERIC Educational Resources Information Center

Explains the relationship between middle school practices and teachers' self-efficacy beliefs. Studies the differences in science teacher efficacy and outcome expectancy, and compares teachers' self efficacy levels in middle and junior high schools. (Contains 57 references.) (YDS)

Schriver, Martha; Czerniak, Charlene M.

1999-01-01

170

Mid Tertiary palynostratigraphy of Thailand  

NASA Astrophysics Data System (ADS)

Mid Tertiary palynological assemblages from fourteen stratigraphic sequences in nine basins in Thailand have been investigated. Special emphasis has been given to the spore-pollen record and its stratigraphic distribution. The basis for defining the zonations is the first or last appearance of key species including: Inaperturopollenites dubius, Alnipollenites verus and Echiperiporites cf. E. estelae. For the first time, correlation between terrestrial and dated marine sequences is achieved. Two palynological zones (SIAM-1 and SIAM-2) have been constructed. SIAM-I Zone is characterized by, inter alia, assemblages comprising high frequencies of gymnospermous pollen, and is provisionally correlated with the planktonic foraminiferal N3-N4 zones of the Trang-1 Borehole, Andaman Sea, indicating an Upper Oligocene to early Lower Miocene age. SIAM-2 Zone is characterized by influxes of tropical taxa and decreasing proportions of the temperate taxa and is provisionally correlated with planktonic foraminiferal N5-N8 zones of the Mergui-1 Borehole, Andaman Sea, indicating a middle to later Lower Miocene age. The results show that the Nong Ya Plong Basin coal seam (pre SIAM-1) is older than the Li Basin coal seams (SIAM-1), Fang Basin oil-bearing intervals (SIAM-2) and Mae Moh Basin coal seams (post SIAM-2).

Watanasak, Manas

171

Latitudinal gradients in tertiary molluscan faunas of the Pacific coast  

USGS Publications Warehouse

Tertiary molluscan faunas of the middle latitudes of the marginal eastern North Pacific are characterized by warm-water taxa whose descendants now live in more southerly latitudes. A series of profiles in which cumulative percentages of warm-water faunal elements are plotted against latitude show progressive northward decreases in the percentage of these elements in the faunas of Pacific coast Tertiary stages. Systematic changes in the relative position of these latitudinal gradients during the Middle and Late Tertiary are related to climatic change in the Pacific Basin. Widespread tropical marine climate in the middle latitudes of the eastern North Pacific during the Eocene is indicated by widespread faunal units characterized by high levels of taxonomic diversity. Succeeding Early Oligocene faunas are less diverse, suggesting cooler climatic conditions. Unusually low representations of warm-water genera characterize the molluscan faunas of the Acila shumardi Zone in central California (latitude 34??-37??N). The anomalously cool-water aspect of these faunas may record the occurrence of upwelling along a bold linear segment of the Pacific coast. During the Late Oligocene or the Early Miocene, they are replaced by faunas of unusually warm-water aspect resulting in positive anomalies in Miocene latitudinal faunal gradients in central California. The Miocene anomalies seem to result from the development of an irregular Neogene coastline with extensive, newly established shallow-water embayments. ?? 1970.

Addicott, W.O.

1970-01-01

172

Measuring Student Improvement in Lower- and Upper-Level University Climate Science Courses  

NASA Astrophysics Data System (ADS)

What do university students know about climate? What do they learn in a climate course? On the second-to-last day of a course about global climate change, only 48% of our upper-level science students correctly answered a multiple-choice question about the greenhouse effect. The good news: improvement. Only 16% had answered correctly on the first day of class. The bad news: the learning opportunities we've provided appear to have missed more than half the class on a fundamental climate concept. To evaluate the effectiveness of instruction on student learning about climate, we have developed a prototype assessment tool, designed to be deployed as a low-stakes pre-post test. The items included were validated through student interviews to ensure that students interpret the wording and answer choices in the way we intend. This type of validated assessment, administered both at the beginning and end of term, with matched individuals, provides insight regarding the baseline knowledge with which our students enter a course, and the impact of that course on their learning. We administered test items to students in (1) an upper-level climate course for science majors and (2) a lower-level climate course open to all students. Some items were given to both groups, others to only one of the groups. Both courses use evidence-based pedagogy with active student engagement (clickers, small group activities, regular pre-class preparation). Our results with upper-level students show strong gains in student thinking (>70% of students who missed a question on the pre-test answered correctly on the post-test) about stock-and-flow (box model) problems, annual cycles in the Keeling curve, ice-albedo feedbacks, and isotopic fractionation. On different questions, lower-level students showed strong gains regarding albedo and blackbody emission spectra. Both groups show similar baseline knowledge and lower-than-expected gains on greenhouse effect fundamentals, and zero gain regarding the relative importance of different greenhouse gases. A larger percentage of upper-level students (compared to lower-level students) arrive with correct knowledge comparing different greenhouse gases, and explanations of annual cycles in the Keeling curve, but both groups show similar gains with instruction. Instructors can use feedback from these pre-post assessment results to iteratively modify and test the learning opportunities they provide. We aim to continue development and further validation of this tool such that it can be used in many university-level climate courses.

Harris, S. E.; Taylor, S. V.; Schoonmaker, J. E.; Lane, E.; Francois, R. H.; Austin, P.

2011-12-01

173

Carleton College Science Education Resource Center (SERC) - Starting Point Entry Level Geoscience Collection  

NSDL National Science Digital Library

The Starting Point collection consists of resources to support teaching entry-level undergraduate geoscience of all types. The collection includes modules on instructional methods. At the Starting Point website, examples demonstrate ways of using these methods in geoscience courses and laboratories, and provide additional information and resources. The collection includes resources that span the needs of faculty and graduate students in designing, developing, and delivering entry-level undergraduate courses in the geosciences. It consists primarily of instructional materials and activities, annotations and materials supporting the use of instructional materials and activities, information on instructional methods and issues in teaching customized for geoscientists, primary sources, review articles, summaries and bibliographies pertaining to pedagogy, assessment, issues in teaching, course development and management, and learning science.

174

Multi-Level Evaluation of Cooperative Research Centers: Bridging between the Triple Helix and the Science of Team Science  

ERIC Educational Resources Information Center

Two emergent conceptual models for fostering the development of innovative technology through applied science at Cooperative Research Centers (CRCs)--the Triple Helix and the science of team science--have proved highly productive in stimulating research into how the innovation process works. Although the two arenas for fostering innovation have…

Gray, Denis O.; Sundstrom, Eric

2010-01-01

175

Science Teachers' Proficiency Levels and Patterns of TPACK in a Practical Context  

NASA Astrophysics Data System (ADS)

Technological pedagogical content knowledge-practical (TPACK-P) refers to a unified body of knowledge that teachers develop from and for actual teaching practices with information communication technologies (ICT). This study attempted to unveil the longitudinal and multidimensional development of knowledge that teachers possess by interviewing 40 teachers with various backgrounds in subject content, years of teaching experience, and related award-winning records. An automated cluster analysis was used on the codes given to teachers' responses based on their proficiency levels in different knowledge areas. Three different types of teachers with distinctive features were identified: technology-infusive (TI), technology transitional (TR), and planning and design (PD). TI teachers were more student-centered as compared to TR teachers who were more teacher-centered when asked about possible technology uses. PD teachers were fluent in planning and designing but lacked the balanced development demonstrated by the TI and TR teachers. These science teachers' TPACK were found stayed at the level of "simple adoption." These findings suggest that teachers' TPACK-P needs to be developed with an accumulation of contextualized and dynamic experiences during ICT implementation in actual teaching. Explicit demonstrations regarding how ICTs can be used meaningfully to assist science instruction would be needed in teacher education.

Yeh, Yi-Fen; Lin, Tzu-Chiang; Hsu, Ying-Shao; Wu, Hisn-Kai; Hwang, Fu-Kwun

2015-02-01

176

Topological constraints are major determinants of tRNA tertiary structure and dynamics and provide basis for tertiary folding cooperativity.  

PubMed

Recent studies have shown that basic steric and connectivity constraints encoded at the secondary structure level are key determinants of 3D structure and dynamics in simple two-way RNA junctions. However, the role of these topological constraints in higher order RNA junctions remains poorly understood. Here, we use a specialized coarse-grained molecular dynamics model to directly probe the thermodynamic contributions of topological constraints in defining the 3D architecture and dynamics of transfer RNA (tRNA). Topological constraints alone restrict tRNA's allowed conformational space by over an order of magnitude and strongly discriminate against formation of non-native tertiary contacts, providing a sequence independent source of folding specificity. Topological constraints also give rise to long-range correlations between the relative orientation of tRNA's helices, which in turn provides a mechanism for encoding thermodynamic cooperativity between distinct tertiary interactions. These aspects of topological constraints make it such that only several tertiary interactions are needed to confine tRNA to its native global structure and specify functionally important 3D dynamics. We further show that topological constraints are conserved across tRNA's different naturally occurring secondary structures. Taken together, our results emphasize the central role of secondary-structure-encoded topological constraints in defining RNA 3D structure, dynamics and folding. PMID:25217593

Mustoe, Anthony M; Brooks, Charles L; Al-Hashimi, Hashim M

2015-01-01

177

Tertiary magmatic belts in Java  

NASA Astrophysics Data System (ADS)

Evidence of the earliest magmatic event (Late Eocene-Early Miocene) has recently been discovered in East Java (Pacitan area) as exposures of pillow lava flows. Stratigraphically they represent the lowermost part of Besole Formation (Oligocene-Early Miocene) which is made up mainly of volcanic turbidites. Major element chemistry of the lava flows indicates typical island arc tholieites with a significant Nb anomaly and relatively flat REE patterns. In Central Java the same magmatic event resulted in the emplacement of tholeitic intrusion at Karangsambung, Luk Ulo. The corresponding volcanic products of this event in West Java are represented by the Jampang Formation (Oligocene-Early Miocene) which is limited to the southern part of West Java. The chemistry of Neogene volcanic rocks which have been collected from the Jatiluhur-Sanggabuana area in West Java show that they are calc-alkali basalts and andesites. Some of them are marked by higher K 2O contents leading to the potassic calc-alkali and shoshonitic rock series; similar phenomena are found in the Neogene volcanics of Karangkobar in Central Java. In East Java (Pacitan-Trenggalek area) outcrops of calc-alkali basalt flows underlie the limestones of the Punung Formation (Middle-late Miocene); the latter is also cut by dykes and volcanic necks of more differentiated rocks. From the pattern of distribution of the Tertiary volcanics, two parallel east-west trending magmatic belts may be recognized; the belt along the southern part of Java is related to Paleogene subduction, whereas the other to the north is related to Neogene subduction. The Quaternary volcanic cones in general are distributed within the Neogene magmatic belt.

Soeria-Atmadja, R.; Maury, R. C.; Bellon, H.; Pringgoprawiro, H.; Polve, M.; Priadi, B.

178

Achievement motivation level in students of Shiraz University of Medical Sciences and its influential factors  

PubMed Central

Introduction: Many studies have investigated the relationship between motivation and educational outcomes. The present study was conducted to determine whether the students’ motivation in Shiraz University of Medical Sciences (SUMS) decreases during educational years. Methods: 770 students in SUMS were selected by multi-stage stratified random sampling from each field and entrance year. The first questionnaire contained 57 questions on the effect of economic, social, educational, geographical and personality factors on the students’ motivation. The second one was based on 50 incomplete sentences. The validity and reliability of these questionnaires were approved by the experts and Cronbach's Alpha coefficients (85% and 90%, respectively). In this cross-sectional study, ANOVA, t-test and Chi-square tests were applied for data analysis at the 0.05 significance level. Results: Six factors with the most effect on academic motivation were "family attitudes", "getting good jobs in future", "respect for themselves", " the ability to learn", "believing their role in victory and defeat" and "the tendency toward optimism about themselves". In addition, comparing professional doctorate and basic sciences’ results revealed no significant relationship between academic motivation and educational years (F=0.819, p=0.397). But comparing field by field showed that Dentistry and Hospital Management and Medical Information (HMMI) had a significant decrease in motivation score by increase in educational years (F=3.991, p=0.015). Conclusion: Achievement motivation level in SUMS students was higher than average and did not decrease during educational years. Also, the results showed that personal, social and educational related factors affected motivation level more than economic and environmental factors. PMID:25587552

KAVOUSIPOUR, SOMAYEH; NOORAFSHAN, ALI; POURAHMAD, SAEEDEH; DEHGHANI-NAZHVANI, ALI

2015-01-01

179

Project-Based Learning as a Vehicle for Teaching Science at the University Level  

NASA Astrophysics Data System (ADS)

In a typical science course learning is teacher directed. Students are presented with knowledge and concepts via textbooks and lecture and then given the opportunity to apply them. Project-based learning (PBL) creates a context and reason to learn information and concepts. In PBL, learning is student directed and teacher facilitated. Students take ownership of their learning by finding, evaluating and synthesizing information from a variety of resources and via interaction between each other. In PBL, the project is central rather than peripheral to the curriculum. It is not just an activity that provides examples, additional practice or applications of the course content, but rather, the vehicle through which major concepts are discovered. The PBL process requires students to do revision and reflection encouraging them to think about what and how they are learning. PBL projects also allow students to develop important life-work skills such as collaboration, communication and critical thinking within the discipline. We have employed PBL in both Liberal Arts courses for non-science majors and upper division courses for science students. Three examples will be discussed. The first will be the production of video documentaries in a non-science major course; the second, a student generated electronic textbook in a 300-level energy course for science students; and lastly, a student designed analysis project in a chemistry major capstone laboratory course. The product in each of these examples was used to deliver knowledge to others in the class as well as members of the public providing motivation for students to do high-quality work. In our examples, student documentaries are publicly screened as part of a university-wide Academic Excellence Showcase; the student generated electronic textbook is available for public use on the internet; and the results of the student designed analysis were communicated to the real-world clients via letters and reports. We will discuss various technology tools employed in these projects such as the internet, wikis for collaborative writing, bookmarking management tools for sharing literature resources, photo sharing sites, and electronic literature searching tools. Also described will be assessment methods to gauge how the projects affected student learning.

Courtney, A. R.; Wade, P.

2012-12-01

180

Measuring specific interests in biological, physical and earth sciences in intermediate grade levels  

Microsoft Academic Search

The Science Activities Checklist which was revised from the Reed activities checklist shows promise of providing science teachers with an instrument to measure interest in biological, earth, and physical science. If teachers are sincere in their efforts to foster interest in their specific science field, this instrument, or the revision the writers are currently committed to, should help them measure

Ray Skinner Jr.; Robert S. Barcikowski

1973-01-01

181

In-class examinations in college-level science: New theory, new practice  

NASA Astrophysics Data System (ADS)

Every faculty member knows that exams drive student behavior. Testing and grading are part of every course, but generally of lesser importance to faculty members than course content itself. Recently, instructional methods and pedagogy. But as issues of grade inflation, student attrition, accountability, and authentic assessment grow in importance, we see some interesting innovations in testing methods and some interesting innovations. The authors are publishing a collection of some of these as described in their own words, by faculty themselves. Two questions underlie the study: 1) why is it so difficult to change tests and testing traditions in college-level science and 2) will the enormous efforts underway to reform pedagogy and curriculum in these disciplines have any lasting effect if testing does not have a prominent place on the reform agenda?

Tobias, Sheila; Raphael, Jacqueline B.

1996-12-01

182

Cooperative Tertiary Interaction Network Guides RNA Folding  

SciTech Connect

Noncoding RNAs form unique 3D structures, which perform many regulatory functions. To understand how RNAs fold uniquely despite a small number of tertiary interaction motifs, we mutated the major tertiary interactions in a group I ribozyme by single-base substitutions. The resulting perturbations to the folding energy landscape were measured using SAXS, ribozyme activity, hydroxyl radical footprinting, and native PAGE. Double- and triple-mutant cycles show that most tertiary interactions have a small effect on the stability of the native state. Instead, the formation of core and peripheral structural motifs is cooperatively linked in near-native folding intermediates, and this cooperativity depends on the native helix orientation. The emergence of a cooperative interaction network at an early stage of folding suppresses nonnative structures and guides the search for the native state. We suggest that cooperativity in noncoding RNAs arose from natural selection of architectures conducive to forming a unique, stable fold.

Behrouzi, Reza; Roh, Joon Ho; Kilburn, Duncan; Briber, R.M.; Woodson, Sarah A. (JHU); (Maryland)

2013-04-08

183

Longitudinal Investigation of Elementary Students' Science Academic Achievement in 4-8th Grades: Grade Level and Gender Differences  

ERIC Educational Resources Information Center

This study investigated the change of the science academic achievement by grade level and gender where 222 elementary students' science and technology course scores between the 4th and 8th grades and science success percentages in 6th and 8th grades Level Determination Exam were longitudinally analyzed. Based on the findings of this study,…

Bursal, Murat

2013-01-01

184

An investigation of gender and grade-level differences in middle school students' attitudes about science, in science process skills ability, and in parental expectations of their children's science performance  

NASA Astrophysics Data System (ADS)

The primary purpose of the study was to examine different variables (i.e. science process skill ability, science attitudes, and parents' levels of expectation for their children in science, which may impinge on science education differently for males and females in grades five, seven, and nine. The research question addressed by the study was: What are the differences between science process skill ability, science attitudes, and parents' levels of expectation in science on the academic success of fifth, seventh, and ninth graders in science and do effects differ according to gender and grade level? The subjects included fifth, seven, and ninth grade students ( n = 543) and their parents (n = 474) from six rural, public elementary schools and two rural, public middle schools in Southern Mississippi. A two-way (grade x gender) multivariate analysis of variance (MANOVA) was used to determine the differences in science process skill abilities of females and males in grade five, seven, and nine. An additional separate two-way multivariate analysis of variance (grade x gender) was also used to determine the differences in science attitudes of males and females in grade five, seven, and nine. A separate analysis of variance (PPSEX [parent's gender]) with the effects being parents' gender was used to determine differences in parents' levels of expectation for their childrens' performance in science. An additional separate analysis of variance (SSEX [student's gender]) with the effects being the gender of the student was also used to determine differences in parents' levels of expectation for their childrens' performance in science. Results of the analyses indicated significant main effects for grade level (p < .001) and gender (p < .001) on the TIPS II. There was no significant grade by gender interaction on the TIPS II. Results for the TOSRA also indicated a significant main effect for grade (p < .001) and the interaction of grade by sex ( p < .001). On variable ATT 5 (enjoyment of science lessons), males' attitudes toward science decreased across the grade levels; whereas, females decreased from grade five to seven, but showed a significant increase from grade seven to nine. Results from the analysis of variance with the parent's gender as the main effect showed no significant difference. The analysis of variance with student's gender as the main effect showed no significant difference.

White, Terri Renee'

185

10 CFR 212.78 - Tertiary incentive crude oil.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Tertiary incentive crude oil. 212.78 Section 212.78 Energy DEPARTMENT OF ENERGY OIL MANDATORY PETROLEUM PRICE REGULATIONS Producers of Crude Oil § 212.78 Tertiary incentive crude...

2010-01-01

186

10 CFR 212.78 - Tertiary incentive crude oil.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 false Tertiary incentive crude oil. 212.78 Section 212.78 Energy DEPARTMENT OF ENERGY OIL MANDATORY PETROLEUM PRICE REGULATIONS Producers of Crude Oil § 212.78 Tertiary incentive crude...

2011-01-01

187

10 CFR 212.78 - Tertiary incentive crude oil.  

...2014-01-01 false Tertiary incentive crude oil. 212.78 Section 212.78 Energy DEPARTMENT OF ENERGY OIL MANDATORY PETROLEUM PRICE REGULATIONS Producers of Crude Oil § 212.78 Tertiary incentive crude...

2014-01-01

188

10 CFR 212.78 - Tertiary incentive crude oil.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 false Tertiary incentive crude oil. 212.78 Section 212.78 Energy DEPARTMENT OF ENERGY OIL MANDATORY PETROLEUM PRICE REGULATIONS Producers of Crude Oil § 212.78 Tertiary incentive crude...

2013-01-01

189

10 CFR 212.78 - Tertiary incentive crude oil.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 false Tertiary incentive crude oil. 212.78 Section 212.78 Energy DEPARTMENT OF ENERGY OIL MANDATORY PETROLEUM PRICE REGULATIONS Producers of Crude Oil § 212.78 Tertiary incentive crude...

2012-01-01

190

Systems Science and Obesity Policy: A Novel Framework for Analyzing and Rethinking Population-Level Planning  

PubMed Central

Objectives. We demonstrate the use of a systems-based framework to assess solutions to complex health problems such as obesity. Methods. We coded 12 documents published between 2004 and 2013 aimed at influencing obesity planning for complex systems design (9 reports from US and Canadian governmental or health authorities, 1 Cochrane review, and 2 Institute of Medicine reports). We sorted data using the intervention-level framework (ILF), a novel solutions-oriented approach to complex problems. An in-depth comparison of 3 documents provides further insight into complexity and systems design in obesity policy. Results. The majority of strategies focused mainly on changing the determinants of energy imbalance (food intake and physical activity). ILF analysis brings to the surface actions aimed at higher levels of system function and points to a need for more innovative policy design. Conclusions. Although many policymakers acknowledge obesity as a complex problem, many strategies stem from the paradigm of individual choice and are limited in scope. The ILF provides a template to encourage natural systems thinking and more strategic policy design grounded in complexity science. PMID:24832406

Matteson, Carrie L.; Finegood, Diane T.

2014-01-01

191

A SUMMARY OF COAL IN THE COALMONT FORMATION (TERTIARY),  

E-print Network

Chapter SN A SUMMARY OF COAL IN THE COALMONT FORMATION (TERTIARY), NORTH PARK BASIN, COLORADO By S assessment of selected Tertiary coal beds and zones in the Northern RockyMountains and Great Plains region, U Resource assessment of selected Tertiary coal beds and zones in the Northern Rocky Mountains and Great

192

Quarterly Technical Progress Report - West Hackberry Tertiary Project  

SciTech Connect

The West Hackberry Tertiary Project is a field test of the concept that air injection can generate tertiary oil recovery through the Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil through gravity discharge. The novel aspect of this project is the use of air as the injection fluid.

Bruce Cerveny; Tor Kragas; Travis Gillham

1998-01-13

193

Quarterly Technical Progress Report - West Hackberry Tertiary Project  

SciTech Connect

The West Hackberry Tertiary Project is a field test of the concept that air injection can generate tertiary oil recovery through the Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil through gravity discharge. The novel aspect of this project is the use of air as the injection fluid.

Demetrios Yannimaras; Travis Gillham

1998-07-14

194

Quarterly Technical Progress Report - West Hackberry Tertiary Project  

SciTech Connect

The West Hackberry Tertiary Project is a field test of the concept that air injection can generate tertiary oil recovery through the Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil through gravity discharge. The novel aspect of this project is the use of air as the injection fluid.

Bruce Cerveny; Tor Kragas; Travis Gillham

1997-07-10

195

Quarterly Technical Progress Report - West Hackberry Tertiary Project  

SciTech Connect

The West Hackberry Tertiary Project is a field test of the concept that air injection can generate tertiary oil recovery through the Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil through gravity discharge. The novel aspect of this project is the use of air as the injection fluid.

Demetrois Yannimaras; Travis Gillham

1998-04-15

196

Beyond The Prime Directive: The MAST Discovery Portal and High Level Science Products  

NASA Astrophysics Data System (ADS)

The Mikulski Archive for Space Telescopes (MAST) is a NASA-funded archive for a wide range of astronomical missions, primarily supporting space-based UV and optical telescopes. What is less well-known is that MAST provides much more than just a final resting place for primary data products and documentation from these missions. The MAST Discovery Portal is our new search interface that integrates all the missions that MAST supports into a single interface, allowing users to discover (and retrieve) data from other missions that overlap with your targets of interest. In addition to searching MAST, the Portal allows users to search the Virtual Observatory, granting access to data from thousands of collections registered with the VO, including large missions spanning the electromagnetic spectrum (e.g., Chandra, SDSS, Spitzer, 2MASS, WISE). The Portal features table import/export, coordinate-based cross-matching, dynamic chart plotting, and the AstroView sky viewer with footprint overlays. We highlight some of these capabilities with science-driven examples. MAST also accepts High Level Science Products (HLSPs) from the community. These HLSPs are user-generated data products that can be related to a MAST-supported mission. MAST provides a permanent archive for these data with linked references, and integrates it within MAST infrastructure and services. We highlight some of the most recent HLSPs MAST has released, including the HST Frontier Fields, GALEX All-Sky Diffuse Radiation Mapping, a survey of the intergalactic medium with HST-COS, and one of the most complete line lists ever derived for a white dwarf using FUSE AND HST-STIS. These HLSPs generate substantial interest from the community, and are an excellent way to increase visibility and ensure the longevity of your data.

Fleming, Scott W.; Abney, Faith; Donaldson, Tom; Dower, Theresa; Fraquelli, Dorothy A.; Koekemoer, Anton M.; Levay, Karen; Matuskey, Jacob; McLean, Brian; Quick, Lee; Rogers, Anthony; Shiao, Bernie; Thompson, Randy; Tseng, Shui-Ay; Wallace, Geoff; White, Richard L.

2015-01-01

197

Assessing the energy and environmental performance of algae-mediated tertiary treatment of estrogenic compounds.  

PubMed

This study uses a systems-level modeling approach to illustrate a novel synergy between municipal wastewater treatment and large-scale algaculture for production of bio-energy, whereby algae-mediated tertiary treatment provides efficient removal of unregulated, strongly estrogenic steroid hormones from the secondary effluent. Laboratory results from previously published studies suggested that algae-mediated treatment could deliver roughly 75-85% removal of a model estrogen (17?-estradiol) within typical algae pond residence times. As such, experimental results are integrated into a comprehensive life cycle assessment (LCA) framework, to assess the environmental performance of an algae-based tertiary treatment system relative to three conventional tertiary treatments: ozonation, UV irradiation, and adsorption onto granular activated carbon. Results indicate that the algae-mediated tertiary treatment is superior to the selected benchmarks on the basis of raw energy return on investment (EROI) and normalized energy use per mass of estrogenic toxicity removed. It is the only tertiary treatment system that creates more energy than it consumes, and it delivers acceptable effluent quality for nutrient and coliform concentrations while rendering a significant reduction in estrogenic toxicity. These results highlight the dual water and energy sustainability benefits that accrue from the integration of municipal wastewater treatment and large-scale algae farming. PMID:25537081

Colosi, Lisa M; Resurreccion, Eleazer P; Zhang, Yongli

2015-02-11

198

Genome Evolution of a Tertiary Dinoflagellate Plastid  

Microsoft Academic Search

The dinoflagellates have repeatedly replaced their ancestral peridinin-plastid by plastids derived from a variety of algal lineages ranging from green algae to diatoms. Here, we have characterized the genome of a dinoflagellate plastid of tertiary origin in order to understand the evolutionary processes that have shaped the organelle since it was acquired as a symbiont cell. To address this, the

Tove M. Gabrielsen; Marianne A. Minge; Mari Espelund; Ave Tooming-Klunderud; Vishwanath Patil; Alexander J. Nederbragt; Christian Otis; Monique Turmel; Kamran Shalchian-Tabrizi; Claude Lemieux; Kjetill S. Jakobsen; Nikolas Nikolaidis

2011-01-01

199

Tertiary Education and Training in Australia, 2009  

ERIC Educational Resources Information Center

Sourcing data from the National VET Provider Collection and the Higher Education Statistics Collection, this publication provides a summary of participation in tertiary education and training in Australia. It covers participation in Australian Qualifications Framework certificate I qualifications through to doctorates by research, as well as…

National Centre for Vocational Education Research (NCVER), 2011

2011-01-01

200

Gas Gangrene at Tertiary Care Centre  

Microsoft Academic Search

Objectives : To study gas gangrene isolates at tertiary care centre. Methods : Analysis of a series of 206 cases of gas gangrene was done over a period of 2 yr (Dec. 2004 - Dec. 2006). Results : Clostridium perfringens was cultured in 58 (90.6%) of the cases, Clostridium tertium were isolated in 5 (7.8%) and clostridium tetani in 1

A Sonavane; M Mathur

201

BEETLE RECORDS Late Tertiary and Early Quaternary  

E-print Network

B BEETLE RECORDS Contents Overview Late Tertiary and Early Quaternary Middle Pleistocene of Europe of London, Surrey, UK ª 2007 Elsevier B.V. All rights reserved. The study of fossil beetles (Coleoptera of the world, most recently to Australia, New Zealand, and Japan. Fossil beetle research has led to many

Sheldon, Nathan D.

202

Revisiting Examination Questions in Tertiary Academic Writing.  

ERIC Educational Resources Information Center

Evaluates Horowitz's (1989) test question categories in a different context from his North American study. Examines questions from two tertiary institutions in New Zealand and compares differences between New Zealand and American institutions. Results suggest that assessment workshops within an institution may be useful for standardizing…

Lewis, Marilyn; Starks, Donna

1997-01-01

203

Palynological and iridium anomalies at Cretaceous-Tertiary boundary, south-central Saskatchewan  

USGS Publications Warehouse

The Cretaceous-Tertiary boundary in south-central Saskatchewan is marked by coincident anomalies in abundance of iridium and fern spores at the extinction level of a suite of Cretaceous pollen taxa. Evidence of disruption of the terrestrial flora includes the fern-spore abundance anomaly and local extinction of as much as 30 percent of angiosperm species. The reorganized earliest Tertiary flora is made up largely of surviving species that assumed new roles of dominance. Persistence of climatically sensitive taxa across the boundary indicates that if paleoclimate was altered by the terminal Cretaceous event, it returned quickly to the pre-event condition.

Nichols, D.J.; Jarzen, D.M.; Orth, C.J.; Oliver, P.Q.

1986-01-01

204

From the Field: Characteristics of Successful Tertiary Online Students and Strategies of Experienced Online Educators  

Microsoft Academic Search

Online learning, now a popular method of education at the tertiary level, creates new challenges for students and educators. Faculty members may know little about how to assist students in succeeding in this new learning environment, and students may be ill prepared to tackle the new demands put upon them. This research sought to identify dimensions of successful online learners

Lynne Schrum; Sunjoo Hong

2002-01-01

205

Alternative Conceptions of Chemical Bonding Held by Upper Secondary and Tertiary Students.  

ERIC Educational Resources Information Center

Examination of senior secondary and tertiary level chemistry students' descriptions of their mental models for chemical bonding revealed prevalent alternative conceptions. Some 20 alternative conceptions were revealed, the most common being belief that continuous ionic or metallic lattices were molecular in nature, and confusion over ionic size…

Coll, Richard K.; Taylor, Neil

2001-01-01

206

Conformation analysis and computation of energy barrier to rotation about Csbnd N bond in para-methylphenyl carbamate and its solvent dependence in comparison with tertiary carbamates and tertiary amides  

NASA Astrophysics Data System (ADS)

Barrier to rotation about conjugated Csbnd N bond in p-Methyl phenyl carbamate (PMPC) was computed 14-16 kcal/mol at three levels of HF, B3LYP and MP2 using 6-311++G?? basis set. The solvent effect and energy barriers about Csbnd N bond in PMPC were compared to the case of tertiary carbamates and tertiary amides. Moreover, it is shown that in primary carbamates such as PMPC and tertiary amides isomerisation process passes through TS2 and TS1 respectively, while in tertiary carbamates goes through a combination of both TSs. Furthermore, X-ray analysis which is reported for the first time for primary aryl carbamates demonstrated that the inclusive plane of carbamate functional group is perpendicular to the plane of phenyl ring. The results of computations are completely in agreement with the X-ray data.

Modarresi-Alam, Ali Reza; Nowroozi, Alireza; Najafi, Parisa; Movahedifar, Fahimeh; Hajiabadi, Hossein

2014-11-01

207

A Graduate-Level Professional Development Program in Science for In-Service Middle and High School Teachers  

NASA Astrophysics Data System (ADS)

Recent research on learning and cognition has produced new insights into designing effective professional development programs for mathematics and science teachers. This research suggests that ``teacher learning programs must become more collegial and in-depth, longer in duration, and tailored to the experience levels of the learners, be they novice or expert teachers" (Stiles & Mundrey 2002). Guided by this research, DePaul University in Chicago has developed an interdisciplinary Masters of Science in Science Education (MSSE) degree program for urban middle school and high school teachers. The program has a strong contemporary earth and space science component, including a course in astrobiology. The MSSE program is designed to strengthen the teachers' science content knowledge and skills, improve their classroom practice, and ultimately enhance their students' learning in science. We will share a variety of strategies we have employed in the design, development, and implementation of the program. We will also discuss what we have learned about the professional development needs of Chicago teachers as well as the research tools we have used to assess the effectiveness of our program. An overarching principle of the program is the integration of science content knowledge with classroom practice and with research on how students learn.

Beck-Winchatz, B.; Narasimhan, L.; Jabon, D.

2008-06-01

208

Clusters, Innovation and Tertiary Education  

ERIC Educational Resources Information Center

The purpose of this paper is to investigate the integration between research findings produced at the University and Community College levels and local SMEs (small and medium enterprises) as it impacts regional innovation systems and in particular the prospect of cluster formation. The paper explores certain factors that have been identified in…

Madgett, Paul; Belanger, Charles H.; Mount, Joan

2005-01-01

209

Key Issue: Recruiting Mathematics and Science Teachers at the High School Level  

NSDL National Science Digital Library

High attrition rates amongst secondary mathematics and science teachers disrupts studentsâ learning, concerns parents, and magnifies the stressors to which remaining teachers are subjected. The National Comprehensive Center for Teacher Quality provides a list of strategies for recruiting high school teachers: implement strategies that provide meaningful incentives for prospective teachers; specifically target those teachers with the experience and education to meet the needs of the school; build a relationship and craft a strategy with input from local institutions of higher education; view the strategies as part of a larger effort to recruit and retain high-quality teachers for every subject at every grade level; take advantage of the local supply of potential teachers; use the internet to increase the reach of recruitment efforts; provide high-quality opportunities for people in other professions to transfer into teaching; be selective in accepting candidates from alternative preparation programs; and broaden the diversity of prospective teachers. These tips are broken down into six steps, and examples are provided of programs with remarkably effective recruitment strategies.

2009-04-22

210

Linguistic Resources Used in Grade 8 Students' Submicro Level Explanations--Science Items from TIMSS 2007  

ERIC Educational Resources Information Center

Explanations involving submicro levels of representation are central to science education, but known to be difficult for students in secondary school. This study examines students' written explanations of physical and chemical phenomena regarding matter and changes in matter, in a large-scale test. This is done in order to understand…

Frändberg, Birgitta; Lincoln, Per; Wallin, Anita

2013-01-01

211

A Study on Prospective Science Teachers' Knowledge and Achievement Levels in Mathematical Logic in Electricity-Related Subjects  

ERIC Educational Resources Information Center

The purpose of this case study is to reveal prospective science teachers' knowledge and achievement levels in electricity-related subjects. The data for the study were collected from 44 prospective teachers using three measurement tools. The data were then analyzed using software developed for the Probability and Possibility Calculation Statistics…

Yilmaz, Ismail

2012-01-01

212

Probing the Natural World, Level III, Teacher's Edition: Why You're You. Intermediate Science Curriculum Study.  

ERIC Educational Resources Information Center

This is the teacher's edition of one of the eight units of the Intermediate Science Curriculum Study (ISCS) for level III students (grade 9). The chapters include basic information about heredity, activities, and optional "excursions." The answers to all activities are included. An introduction describes the work of Gregor Mendel and his…

Bonar, John R., Ed.; Hathway, James A., Ed.

213

Effects of multisensory resources on the achievement and science attitudes of seventh-grade suburban students taught science concepts on and above grade level  

NASA Astrophysics Data System (ADS)

This research was designed to determine the relationships among students' achievement scores on grade-level science content, on science content that was three years above-grade level, on attitudes toward instructional approaches, and learning-styles perceptual preferences when instructional approaches were multisensory versus traditional. The dependent variables for this investigation were scores on achievement posttests and scores on the attitude survey. The independent variables were the instructional strategy and students' perceptual preferences. The sample consisted of 74 educationally oriented seventh-grade students. The Learning Styles Inventory (LSI) (Dunn, Dunn, & Price, 1990) was administered to determine perceptual preferences. The control group was taught seventh-grade and tenth-grade science units using a traditional approach and the experimental group was instructed on the same units using multisensory instructional resources. The Semantic Differential Scale (SDS) (Pizzo, 1981) was administered to reveal attitudinal differences. The traditional unit included oral reading from the textbook, completing outlines, labeling diagrams, and correcting the outlines and diagrams as a class. The multisensory unit included five instructional stations established in different sections of the classroom to allow students to learn by: (a) manipulating Flip Chutes, (b) using Electroboards, (c) assembling Task Cards, (d) playing a kinesthetic Floor Game, and (e) reading an individual Programmed Learning Sequence. Audio tapes and scripts were provided at each location. Students circulated in groups of four from station to station. The data subjected to statistical analyses supported the use of a multisensory, rather than a traditional approach, for teaching science content that is above-grade level. T-tests revealed a positive and significant impact on achievement scores (p < 0.0007). No significance was detected on grade-level achievement nor on the perceptual-preference effect. Furthermore, the students indicated significantly more positive attitudes when instructed with a multisensory approach on either grade-level or above-grade level science content (p < 0.0001). The findings supported using a multisensory approach when teaching science concepts that are new to and difficult for students (Martini, 1986).

Roberts, Patrice Helen

214

An Application of the Questionnaire on Teacher Interaction and College and University Classroom Environment Inventory in a Multicultural Tertiary Context  

NASA Astrophysics Data System (ADS)

The research reported in this inquiry consisted of the application of two classroom learning environment questionnaires developed in a Western context to a culturally diverse context, namely, the Pacific Islands. The College and University Classroom Environment Inventory (CUCEI) and Questionnaire on Teacher Interaction (QTI) instruments were administered to intact classes of first- and second-year science students ( n= 257) at a regional university in the Pacific Islands, containing a total of 12 ethnicities. The data reveal that the QTI instrument holds good reliability for all scales, whereas the CUCEI holds reliability for only two scales. This may be due to the simple nature of the questions on the QTI whereas the questions on the CUCEI require more interpretation, the latter exacerbated by the fact that English is a second or third language for most participants. Surprisingly, there were few differences in perceptions of teacher student interaction based on ethnicity, but substantial differences based on gender. As reported in previous classroom environment research at the secondary school level, in this study, females perceived their environment more favourably than males. The data for the QTI reveal that the students perceive their classrooms to be highly teacher dominated, consistent with previous naturalistic studies of secondary schools and exploratory studies at the tertiary level in Fiji. Since almost all the graduates from this institution become science teachers, a cycle is completed.

Coll, Richard K.; Taylor, Neil; Fisher, Darrell L.

2002-02-01

215

Attitudes and beliefs, about inquiry science, of middle level and secondary science teachers in northwest Arkansas and northwest Oklahoma  

NASA Astrophysics Data System (ADS)

A This study attempted to close gaps in the literature with regards to implementation of inquiry practices in secondary science classrooms. In addition, the areas and ways in which practice ties to beliefs and experiences in the area of inquiry were examined. This study introduces an instrument that could be used to assess teachers' attitudes and beliefs about inquiry teaching practices and potential barriers to teaching science using an inquiry approach. Because the efficacy of reform efforts rests largely with teachers, their voices need to be included in the design and implementation of inquiry---based curriculum. This study helps to clarify the need for future research to examine inquiry as a pedagogical approach. If we desire pre-service teachers to teach using an inquiry approach when they have their own classrooms, they must know how to plan, implement, and assess inquiry science lessons, not just have experienced "inquiry lessons" as a student. One unique finding in this study was in the area of licensure and teaching style. Other studies found that in general traditionally licensed teachers felt better prepared to teach. This study found that participants who were alternatively certified incorporated characteristics of inquiry less often than those with traditional certification. This indicates that more research is needed in the area of certification and the affect it may have on quality of instruction for specific content areas like science.

Dockers, Jean E.

216

Testing the Waters in Teaching: A Qualitative Study on Graduate-Level Intern Science Teachers' Motivations for Entry into Teaching in Taiwan  

ERIC Educational Resources Information Center

The teaching profession has difficulties in recruiting high-quality science teachers in many countries and many beginning science teachers would leave after their first year of teaching. As Taiwan has recently been able to recruit many graduate-level science students into teachers' training programs, it is important to investigate if these…

Wang, Hsiou-Huai

2011-01-01

217

Content, format, gender and grade level differences in elementary students' ability to read science materials as measured by the cloze procedure  

NASA Astrophysics Data System (ADS)

Present instructional trends in science indicate a need to reexamine a traditional concern in science education: the readability of science textbooks. An area of reading research not well documented is the effect of color, visuals, and page layout on readability of science materials. Using the cloze readability method, the present study explored the relationships between page format, grade level, sex, content, and elementary school students ability to read science material. Significant relationships were found between cloze scores and both grade level and content, and there was a significant interaction effect between grade and sex in favor of older males. No significant relationships could be attributed to page format and sex. In the area of science content, biological materials were most difficult in terms of readability followed by earth science and physical science. Grade level data indicated that grade five materials were more difficult for that level than either grade four or grade six materials were for students at each respective level. In eight of nine cases, the science text materials would be classified at or near the frustration level of readability. The implications for textbook writers and publishers are that science reading materials need to be produced with greater attention to readability and known design principles regarding visual supplements. The implication for teachers is that students need direct instruction in using visual materials to increase their learning from text material. Present visual materials appear to neither help nor hinder the student to gain information from text material.

Williams, Richard L.; Yore, Larry D.

218

High School Science Reform: Taking SS&C to a Higher Level.  

ERIC Educational Resources Information Center

Discusses important tenets of the Scope Sequence and Coordination (SS&C) project and presents the SS&C high school project designed specifically to achieve the National Science Education Standards. Specifies the scope, sequence, and coordination of the natural sciences in grades 9 through 12 in support of general goals taken from the National…

Aldridge, Bill G.

1995-01-01

219

Science Seeker: A New Model for Teaching Information Literacy to Entry-Level Biology Undergraduates  

ERIC Educational Resources Information Center

In order to integrate library instruction seamlessly into an introductory biology course, two librarians collaborated with a biology faculty member to create a three-part series of instruction sessions known as the Science Seeker. The Science Seeker taught students about the structure of scientific information by tracing the path that discoveries…

Petzold, Jacquelyn; Winterman, Brian; Montooth, Kristi

2010-01-01

220

Evaluation of constructivist pedagogy: Influence on critical thinking skills, science fair participation and level of performance  

Microsoft Academic Search

Science education reform, driven by a rapidly advancing technological society, demands the attention of both elementary and middle school curriculum-developers. Science education training in current standards (National Research Council [NRC] Standards 1996) emphasize inquiry, which is reported to be a basic tenet of the theory known as constructivism (NAASP, 1996; Cohen, 1988; Conley, 1993; Friedman, 1999; Newman, Marks, & Gamoran,

Robbie Evelyn Foxx

2001-01-01

221

Preparing Middle Level Preservice Teachers to Integrate Mathematics and Science: Problems and Possibilities  

ERIC Educational Resources Information Center

Many members of the mathematics and science education community believe that the integration of mathematics and science enhances students' understanding of both subjects. Despite this belief, attempts to integrate these subjects have frequently been unsuccessful. This study examines the development and implementation of a team-taught integrated…

Koirala, Hari P.; Bowman, Jacqueline K.

2003-01-01

222

Correlated Curriculum Program: An Experimental Program. Science Level 1 (9A, 9B, 10A).  

ERIC Educational Resources Information Center

The unit plans in Correlated Science 1 are intended to be of use to the teacher in both lesson and team planning. The course in science was designed for optimum correlation with the work done in business, health, and industrial careers. Behavioral objectives, class routines, time allotments, student evaluation, and the design of the manual are…

Loebl, Stanley, Ed.; And Others

223

Preliminary palynology of some antarctic tertiary erratics  

Microsoft Academic Search

Moraine samples from Black Island, McMurdo Sound, Antarctica, contain pollen and microplankton assemblages of probable Eocene age. The pollen floras indicate the presence of Nothofagus-dominant vegetation growing in a cool temperate climate at that time. The Black Island material is compared with a previous plant microfossil record from McMurdo Sound and with New Zealand Tertiary pollen floras, and its significance

D. J. McIntyre; G. J. Wilson

1966-01-01

224

Ion exchange as a tertiary treatment  

E-print Network

. The aldehyde reacts with the amino groups. Secondary and tertiary amino groups are formed making the resin polyfunctional. The base strength and degree of crosslinking are proportional to the rela- tive amonnt of formaldehyde used. Those resins were capab... adjusted (3) . The most common strong base anion exchange resin is a polystyrene crosslinked by divinylbenzene. The basic groups are introduced into the resin structur e bv chloro? methylation of the polystyrene beads and subs equent treat? ment...

Westervelt, Ronald David

1968-01-01

225

The Cretaceous-Tertiary biotic transition  

Microsoft Academic Search

Mass extinctions are recognized through the study of fossil groups across event horizons, and from analyses of long-term trends in taxonomic richness and diversity. Both approaches have inherent flaws, and data that once seemed reliable can be readily superseded by the discovery of new fossils and\\/or the application of new analytical techniques. Herein the current state of the Cretaceous-Tertiary (K-T)

N. MACLEOD; P. F. RAWSON; P. L. FOREY; F. T. BANNER; M. K. BOUDAGHER-FADEL; P. R. BOWN; J. A. BURNETT; P. CHAMBERS; S. CULVER; S. E. EVANS; C. JEFFERY; M. A. KAMINSKI; A. R. LORD; A. C. MILNER; N. MORRIS; E. OWEN; B. R. ROSEN; A. B. SMITH; P. D. TAYLOR; E. URQUHART; J. R. YOUNG

1997-01-01

226

Marine Science Teaching and Training at First Degree (Undergraduate) Level. Recommended Guidelines from a Unesco Workshop on University Curricula (6th, Paris, France, November 17-21, 1986). Unesco Reports in Marine Science No. 45.  

ERIC Educational Resources Information Center

This report of an international workshop contains recommended guidelines on marine science teaching and training at the first degree level, equated here with a Bachelor of Science, except in those countries in which the first degree corresponds to a Master of Science or its equivalent. Three instructional models are presented: the first model for…

United Nations Educational, Scientific, and Cultural Organization, Paris (France). Div. of Marine Sciences.

227

An analysis of integrated science and language arts themes in software at the elementary school level  

NASA Astrophysics Data System (ADS)

There are many demands on the elementary classroom teacher today, such that teachers often do not have the time and resources to instruct in a meaningful manner that would produce effective, real instruction. Subjects are often disjointed and not significant. When teachers instruct using an integrated approach, students learn more efficiently as they see connections in the subjects. Science and language arts, when combined to produce an integrated approach, show positive associations that can enable students to learn real-life connections. In addition, with the onset of technology and the increased usage of technological programs in the schools, teachers can use technology to support an integrated curriculum. When teachers use a combined instructional focus of science, language arts, and technology to produce lessons, students are able to gain knowledge of concepts and skills necessary for appropriate academic growth and development. Given that there are many software programs available to teachers for classroom use, it is imperative that quality software is used for instruction. Using criteria based upon an intensive literature review of integrated instruction in the areas of science and language arts, this study examines science and language arts software programs to determine whether there are science and language arts integrated themes in the software analyzed. Also, this study examines whether more science and language arts integrated themes are present in science or language arts software programs. Overall, this study finds a significant difference between language arts software and science software when looking at integrated themes. This study shows that science software shows integrated themes with language arts more often than does language arts software with science. The findings in this study can serve as a reference point for educators when selecting software that is meaningful and effective in the elementary classroom. Based on this study, it is apparent that there is a need to evaluate software for appropriate use in the classroom in order to promote effective education.

Libidinsky, Lisa Jill

2002-09-01

228

Developing partnerships for implementing continental-scale citizen science programs at the local-level  

NASA Astrophysics Data System (ADS)

Project BudBurst is a citizen science project focused on monitoring plant phenology that resides at the National Ecological Observatory Network (NEON, Inc). A central question for Project BudBurst and other national outreach programs is: what are the most effective means of engaging and connecting with diverse communities throughout the country? How can continental scale programs like NEON's Project BudBurst engage audiences in such a way as to be relevant at both the local and continental scales? Staff with Project BudBurst pursued partnerships with several continental scale organizations: the National Wildlife Refuge System, the National Park Service, and botanic gardens to address these questions. The distributed nature of wildlife refuges, national parks, and botanic gardens around the country provided the opportunity to connect with participants locally while working with leadership at multiple scales. Project BudBurst staff talked with hundreds of staff and volunteers prior to setting a goal of obtaining and developing resources for several Refuge Partners, a pilot National Park partner, and an existing botanic garden partner during 2011. We were especially interested in learning best practices for future partnerships. The partnership efforts resulted in resource development for 12 Refuge partners, a pilot National Park partner, and 2 botanic garden partners. Early on, the importance of working with national level leaders to develop ownership of the partner program and input about resource needs became apparent. Once a framework for the partnership program was laid out, it became critical to work closely with staff and volunteers on the ground to ensure needs were met. In 2012 we began to develop an online assessment to allow our current and potential partners to provide feedback about whether or not the partnership program was meeting their needs and how the program could be improved. As the year progressed, the timeline for resource development became more of a suggestion than a set schedule. Maintaining flexibility was critical to the success of the partnerships. Unanticipated fieldwork, new priorities within organizations, and differing levels of involvement from partner staff, advisory boards, or Friends groups, led to varying resource development timelines. The distributed nature of and the willingness of partner staff and volunteers to implement Project BudBurst at their facilities have broadened the participation of the public in this program more than could have been accomplished alone. The new partners benefit from the free and customized education and outreach materials provided by Project BudBurst, while Project BudBurst benefits from the local knowledge and contacts with the public from the partner organizations.

Newman, S. J.; Henderson, S.; Ward, D.

2012-12-01

229

Assessing Students at Tertiary Level: How Can We Improve?  

ERIC Educational Resources Information Center

A number of issues related to assessment of students undergoing English enhancement courses were raised at a workshop on assessment held at The University of Hong Kong Language Centre. The primary focus of the workshop was to update staff about current assessment practices in the various programs run by the Language Centre and to discuss issues of…

Lewkowicz, Jo A.

1992-01-01

230

2012 Tennessee 4-H Roundup Animal Science Winners Several 4-H'ers were recognized at the Tennessee 4-H Roundup awards banquet. Each Level I  

E-print Network

2012 Tennessee 4-H Roundup Animal Science Winners Several 4-H'ers were recognized at the Tennessee for a $500 scholarship if they major in agriculture or family and consumer science at UTM or UTK. Each Level II winner received a silver bowl, the Lee Medallion and a trip to National 4-H Congress. Beef Level I

Grissino-Mayer, Henri D.

231

Aitken, CGG. Zadora, G & Lucy, D. (2007) A Two-Level Model for Evidence Evaluation. Journal of Forensic Sciences. 52(2); 412-419.  

E-print Network

of Forensic Sciences. 52(2); 412-419. A Two-Level Model for Evidence Evaluation Colin G.G. Aitken,1 Ph of Mathematics & Statistics, Lancaster University, Lancaster, LA1 4YF. KEYWORDS: forensic science, evidenceAitken, CGG. Zadora, G & Lucy, D. (2007) A Two-Level Model for Evidence Evaluation. Journal

Lucy, David

232

Pre-Service Science Teachers' Written Argumentation Qualities: From the Perspectives of Socio- Scientific Issues, Epistemic Belief Levels and Online Discussion Environment  

ERIC Educational Resources Information Center

This study investigated the relationship between pre-service science teachers' written argumentation levels about socio-scientific issues and epistemic belief levels in an online discussion environment. A mixed-methods approach was used: 30 Turkish pre-service science teachers contributed with their written argumentations to four…

Isbilir, Erdinc; Cakiroglu, Jale; Ertepinar, Hamide

2014-01-01

233

School Emphasis on Academic Success: Exploring Changes in Science Performance in Norway between 2007 and 2011 Employing Two-Level SEM  

ERIC Educational Resources Information Center

We study whether changes in school emphasis on academic success (SEAS) and safe schools (SAFE) may explain the increased science performance in Norway between TIMSS 2007 and 2011. Two-level structural equation modelling (SEM) of merged TIMSS data was used to investigate whether changes in levels of SEAS and SAFE mediate the changes in science

Nilsen, Trude; Gustafsson, Jan-Eric

2014-01-01

234

Context, accuracy, and level of inclusion of nature of science concepts in current high school physics textbooks  

NASA Astrophysics Data System (ADS)

To improve K-12 students' images of the nature of science (NOS) through science textbooks, two issues must be addressed: (a) the level of NOS that ought to be included in science textbooks and (b) the treatment of this level in those textbooks. Science educators achieved a consensus level of agreement regarding what NOS aspects should be taught for K-12 science learners; however, there is a need for more clarification regarding the actual treatment of NOS in science textbooks. The purpose of this study is to investigate the NOS inclusion in high school physics textbooks. To be specific, this study examines the included NOS aspects, the frequency of NOS inclusion, the contexts exist for NOS inclusion, and the accuracy of NOS inclusion. This study utilized 12 science education studies to develop the Master Aspects of Nature of Science [MA-NOS] which includes 12 NOS aspects that ought to be included in K-12 science curriculum. The analyzed textbooks in this study are seven textbooks identified by The American Institute of Physics as the most widely used high school physics textbooks in the United States in 2005. These textbooks were used in teaching five academic levels: (a) Regular First-Year Physics, (b) Physics for Non-Science Students, (c) Honors Physics, (d) AP-B Physics, and (e) AP-C Physics. The researcher selected exclusively physics textbooks because physics is his main interest. To facilitate the content analysis of the selected textbooks, the study developed The Collection Data Coding Guide which includes six parts describing the MA-NOS aspects and the process of identifying and collecting data. For each NOS aspect, a description and one or more selected ideal indicators were provided to facilitate data collecting and judging the accuracy of NOS inclusion. This coding guide was reviewed for its content validity by two science educators who specialize in NOS. However, two types of reliability were conducted to identify the consistency of selecting NOS units, classifying contexts existing for NOS inclusion, identifying NOS elements, and judging NOS inclusion accuracy. The agreements over time "rate-rerate reliability" were 100%, 96.97%, 79.36%, and 100% respectively. However, the agreements among analysts "inter-rate reliability" were 100%, 92.3%, 66.7%, and 96.2% respectively. This study permitted eliminating, adding, or modifying NOS indicators through textbook analysis. At the end of this study, three indicators were eliminated, one was added, and one was modified. The final version of the coding guide includes 36 indicators representing the meaning of the ML-NOS. The findings of the first research question indicate that all NOS aspects are included in the textbooks except "there is a distinction between observations and inferences." However, the textbooks vary in their inclusion of NOS aspects; each textbook includes between five to 11 different NOS aspects. The results of the second question indicate that the frequencies of NOS inclusion range between 41 to 174 instances in the textbooks. The textbooks seem to include more NOS elements related to "scientific knowledge is tentative," "there is a distinction between scientific laws and theories," "scientific knowledge is empirically based," "the absence of a universal step-wise scientific method," "cooperation and collaboration in development of scientific knowledge," and "the role of experiment in science." The findings of the third research question indicate that 84.5% of the total included NOS elements in the textbooks are included through the main texts. 15.5% of the elements are included through figures, lab activities, boxed-in sections, and glossary sections; however, no elements are included through tables or charts. The results also indicate that more utilization of types of contexts beside the main text associates with more NOS inclusion. The results of the fourth question indicate that 14 NOS elements, with 2.3% of the total elements, are inaccurately included in

Alshamrani, Saeed Mohammed

235

Queuing Models of Tertiary Storage  

NASA Technical Reports Server (NTRS)

Large scale scientific projects generate and use large amounts of data. For example, the NASA Earth Observation System Data and Information System (EOSDIS) project is expected to archive one petabyte per year of raw satellite data. This data is made automatically available for processing into higher level data products and for dissemination to the scientific community. Such large volumes of data can only be stored in robotic storage libraries (RSL's) for near-line access. A characteristic of RSL's is the use of a robot arm that transfers media between a storage rack and the read/write drives, thus multiplying the capacity of the system. The performance of the RSL's can be a critical limiting factor for the performance of the archive system. However, the many interacting components of an RSL make a performance analysis difficult. In addition, different RSL components can have widely varying performance characteristics. This paper describes our work to develop performance models of an RSL in isolation. Next we show how the RSL model can be incorporated into a queuing network model. We use the models to make some example performance studies of archive systems. The models described in this paper, developed for the NASA EODIS project, are implemented in C with a well defined interface. The source code, accompanying documentation, and also sample JAVA applets are available at: http://www.cis.ufl.edu/ted/

Johnson, Theodore

1996-01-01

236

Peer-driven contraceptive choices and preferences for contraceptive methods among students of tertiary educational institutions in Enugu, Nigeria  

PubMed Central

Purpose To describe the methods preferred for contraception, evaluate preferences and adherence to modern contraceptive methods, and determine the factors associated with contraceptive choices among tertiary students in South East Nigeria. Methods A questionnaire-based cross-sectional study of sexual habits, knowledge of contraceptive methods, and patterns of contraceptive choices among a pooled sample of unmarried students from the three largest tertiary educational institutions in Enugu city, Nigeria was done. Statistical analysis involved descriptive and inferential statistics at the 95% level of confidence. Results A total of 313 unmarried students were studied (194 males; 119 females). Their mean age was 22.5±5.1 years. Over 98% of males and 85% of females made their contraceptive choices based on information from peers. Preferences for contraceptive methods among female students were 49.2% for traditional methods of contraception, 28% for modern methods, 10% for nonpharmacological agents, and 8% for off-label drugs. Adherence to modern contraceptives among female students was 35%. Among male students, the preference for the male condom was 45.2% and the adherence to condom use was 21.7%. Multivariate analysis showed that receiving information from health personnel/media/workshops (odds ratio 9.54, 95% confidence interval 3.5–26.3), health science-related course of study (odds ratio 3.5, 95% confidence interval 1.3–9.6), and previous sexual exposure prior to university admission (odds ratio 3.48, 95% confidence interval 1.5–8.0) all increased the likelihood of adherence to modern contraceptive methods. Conclusion An overwhelming reliance on peers for contraceptive information in the context of poor knowledge of modern methods of contraception among young people could have contributed to the low preferences and adherence to modern contraceptive methods among students in tertiary educational institutions. Programs to reduce risky sexual behavior among these students may need to focus on increasing the content and adequacy of contraceptive information held by people through regular health worker-led, on-campus workshops. PMID:25114515

Iyoke, CA; Ezugwu, FO; Lawani, OL; Ugwu, GO; Ajah, LO; Mba, SG

2014-01-01

237

Annual Technical Progress Report - West Hackberry Tertiary Project  

Microsoft Academic Search

The West Hackberry Tertiary Project is a field test of the concept that air injection can be;\\u000acombined with the Double Displacement Process to produce a tertiary recovery process;\\u000athat is both low cost and economic at current oil prices. The Double Displacement;\\u000aProcess is the gas displacement of a water invaded oil column for the purpose of;\\u000arecovering tertiary

Allen Fornea; Bruce Cerveny; Travis H. Gillham

1997-01-01

238

COMMUNICATION Repeated Tertiary Fold of RNA Polymerase II and  

E-print Network

COMMUNICATION Repeated Tertiary Fold of RNA Polymerase II and Implications for DNA Binding Jianhua*Corresponding author Multisubunit RNA polymerases have been extensively conserved through evolution from bacteria

Gerstein, Mark

239

Disaster resilience in tertiary hospitals: a cross-sectional survey in Shandong Province, China  

PubMed Central

Background Hospital disaster resilience can be defined as a hospital’s ability to resist, absorb, and respond to the shock of disasters while maintaining critical functions, and then to recover to its original state or adapt to a new one. This study aims to explore the status of resilience among tertiary hospitals in Shandong Province, China. Methods A stratified random sample (n =?50) was derived from tertiary A, tertiary B, and tertiary C hospitals in Shandong Province, and was surveyed by questionnaire. Data on hospital characteristics and 8 key domains of hospital resilience were collected and analysed. Variables were binary, and analysed using descriptive statistics such as frequencies. Results A response rate of 82% (n =?41) was attained. Factor analysis identified four key factors from eight domains which appear to reflect the overall level of disaster resilience. These were hospital safety, disaster management mechanisms, disaster resources and disaster medical care capability. The survey demonstrated that in regard to hospital safety, 93% had syndromic surveillance systems for infectious diseases and 68% had evaluated their safety standards. In regard to disaster management mechanisms, all had general plans, while only 20% had specific plans for individual hazards. 49% had a public communication protocol and 43.9% attended the local coordination meetings. In regard to disaster resources, 75.6% and 87.5% stockpiled emergency drugs and materials respectively, while less than a third (30%) had a signed Memorandum of Understanding with other hospitals to share these resources. Finally in regard to medical care, 66% could dispatch an on-site medical rescue team, but only 5% had a ‘portable hospital’ function and 36.6% and 12% of the hospitals could surge their beds and staff capacity respectively. The average beds surge capacity within 1 day was 13%. Conclusions This study validated the broad utility of a framework for understanding and measuring the level of hospital resilience. The survey demonstrated considerable variability in disaster resilience arrangements of tertiary hospitals in Shandong province, and the difference between tertiary A hospitals and tertiary B hospitals was also identified in essential areas. PMID:24661641

2014-01-01

240

Lymphatic vessels and tertiary lymphoid organs  

PubMed Central

Tertiary lymphoid organs (TLOs) are accumulations of lymphoid cells in chronic inflammation that resemble LNs in their cellular content and organization, high endothelial venules, and lymphatic vessels (LVs). Although acute inflammation can result in defective LVs, TLO LVs appear to function normally in that they drain fluid and transport cells that respond to chemokines and sphingosine-1-phosphate (S1P) gradients. Molecular regulation of TLO LVs differs from lymphangiogenesis in ontogeny with a dependence on cytokines and hematopoietic cells. Ongoing work to elucidate the function and molecular regulation of LVs in TLOs is providing insight into therapies for conditions as diverse as lymphedema, autoimmunity, and cancer. PMID:24590281

Ruddle, Nancy H.

2014-01-01

241

Electron neutrino tagging through tertiary lepton detection  

E-print Network

We discuss an experimental technique aimed at tagging electron neutrinos in multi-GeV artificial sources on an event-by-event basis. It exploits in a novel manner calorimetric and tracking technologies developed in the framework of the LHC experiments and of rare kaon decay searches. The setup is suited for slow-extraction, moderate power beams and it is based on an instrumented decay tunnel equipped with tagging units that intercept secondary and tertiary leptons from the bulk of undecayed \\pi^+ and protons. We show that the taggers are able to reduce the \

L. Ludovici; F. Terranova

2010-07-27

242

Tertiary Paleogeography and Tectonic History, Central Arizona  

NSDL National Science Digital Library

This website presents images and text depicting the paleogeography and tectonic evolution of central Arizona during the Tertiary period. Emphasis is on an evolving Oligocene to Miocene drainage system that documents the existence of the Mogollon Rim, the southern physiographic boundary of the Colorado Plateau. The goal of this page is to demonstrate the evolution of stream systems in relation to complex, dynamic, tectonic events in the Southwest including the Laramide orogeny, Cenozoic core complexes, Basin and Range faulting, and Cenozoic volcanism. This is done through photographs, stratigraphic columns and cross-sections of area geology.

Ronald Blakey

243

ED20. Crisis or Opportunity? Earth and Space Science Education at the State and National Levels  

NASA Astrophysics Data System (ADS)

Scientists and researchers, those often in oversight positions and often control of the purse strings, have historically not been kind to the Earth Systems Science (ESS) discipline. This is puzzling to those of us who are ESS educators because we know that to appreciate how our planet works it is necessary to integrate and apply all the disciplines of science. With our amazing technologies and the increasing demands of a growing population we are dramatically changing our home planet. Perhaps a crisis? As the last century ended we found ESS in the same minor league position it was in when the 20th Century started. During the review period of what was to become the National Science Education Standards (NSES) draft after draft, no matter what color the cover was, seemed to ignore, omit, or severely limit ESS topics in meteorology and oceanography. Once published the NSES became the basis for the science standards in many states with what many said were critical gaps. In the years following 1996 different groups have worked to correct the omissions they found by developing guides...Ocean Literacy: Essential Principles of Ocean Science K-12 and Climate Literacy: The Essential Principals of Climate Science. An observer on the side might have considered each effort one of lobbying to get attention, funding and materials. Each effort was clearly interested in making an impact where it mattered...in the classroom. Now our Opportunity! The NAS process for developing "A Framework for K-12 Science Education" presented ESS educators with a real opportunity and we can proudly say we made our voices heard. And while there is great enthusiasm for the framework and the Chapter 7 Earth and Space we face critically important work to bring real Earth Space Science Education into the K-12 classroom. The possibility of the standards to be developed from the Framework becoming Common Core for the majority of states following the course of ELA and mathematics requires that those who previously guarded their territory collaborate.

Brett, J. M.

2011-12-01

244

COURSE OUTLINE FOR THIRD SIX WEEKS OF SCIENCE-LEVEL II, TALENT PRESERVATION CLASSES.  

ERIC Educational Resources Information Center

UNIT III (SIX WEEKS) CONCERNS PLANT LIFE, AND DEALS WITH THALLUS PLANTS, MOSSES, FERNS, AND SEED PLANTS. UNIT IV (SIX WEEKS) COVERS AIR AND SPACE, WITH SUBTOPICS ON ASTRONOMY AND WEATHER. "THE CHANGING EARTH," DEALING WITH GEOLOGY AND CONSERVATION, COMPRISES UNIT V (6WEEKS). THE LAST, UNIT VI (6 WEEKS), DEALS WITH CONSUMER SCIENCE--BIOLOGICAL AND…

Houston Independent School District, TX.

245

Investigating the Transition into Third Level Science--Identifying a Student Profile  

ERIC Educational Resources Information Center

Research into student transition to and experience of first-year undergraduate study has been ongoing for many years. The corresponding research within the discipline of science has been less prolific and that which has been published tends to focus on using external factors such as previous grades, finances, travel time "etc." as predictors for…

Lovatt, James; Finlayson, Odilla

2013-01-01

246

Student Perception of Metacognitive Activities in Entry-Level Science Courses  

ERIC Educational Resources Information Center

A research study investigated student perception of the use of metacognitive activities in the classroom. The courses were large enrollment (n greater than 100) introductory Plant and Soil Sciences courses taught in the fall semester. The courses implemented activities such as concept sketches or conceptual modeling to help students develop their…

Sandall, Leah; Mamo, Martha; Speth, Carol; Lee, Don; Kettler, Timothy

2014-01-01

247

How Shall We Tell Our People? The Art and Science of Communicating Sea-Level Rise to Coastal Audiences (Invited)  

NASA Astrophysics Data System (ADS)

Improved sea-level rise projections and translation into decision-relevant information (e.g., changed flood frequencies and elevations, increased rates in coastal erosion, salinity changes in coastal aquifers) are critical for coastal managers, planners, and local elected officials to feel more confident in bringing climate change and its related coastal impacts to the attention of their communities. Those who have done so or are considering doing so, however, are not just concerned with “getting the science right” or getting the most credible and relevant information. They immediately, and sometimes primarily, are concerned with the reactions of coastal residents, developers, and business interests to the prospects of potentially difficult and substantial changes in coastal land use, their property rights, and the potential loss of their homes and establishments. How to engage the public constructively in developing adaptation strategies is a largely unmet challenge for most coastal managers. Similarly, they have not been trained in how to effectively communicate an issue that is ripe with the potential for loss, danger, and social and legal conflict - more so than they already face. Better physical science on sea-level rise alone will not meet these needs. Meanwhile, the social sciences have only begun to study public attitudes toward local impacts and adaptation responses. This paper will summarize key insights available at this time and point to important research and education/training needs to better assist practitioners faced with developing and implementing coastal adaptation strategies.

Moser, S. C.

2010-12-01

248

40 CFR 721.10090 - Tertiary amine salt of glycol succinate (generic).  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Tertiary amine salt of glycol succinate (generic). 721...Substances § 721.10090 Tertiary amine salt of glycol succinate (generic). ...identified generically as tertiary amine salt of glycol succinate (PMN...

2011-07-01

249

MultiLevel Modeling of Dyadic Data in Sport Sciences: Conceptual, Statistical, and Practical Issues  

Microsoft Academic Search

The goal of this article is to present a series of conceptual, statistical, and practical issues in the modeling of multi-level dyadic data. Distinctions are made between distinguishable and undistinguishable dyads and several types of independent variables modeled at the dyadic level of analysis. Multi-level modeling equations are explained in a non-technical manner. A database of 66 athletes regrouped in

Patrick Gaudreau; Marie-Claude Fecteau; Stéphane Perreault

2010-01-01

250

Source rock evaluation of Cretaceous and Tertiary series in Tunisia  

Microsoft Academic Search

Tunisia represents a mature hydrocarbon province with a long exploration history. In the Sfax-Kerkennah and Gabes Gulf areas, the hydrocarbon accumulations are located in series of Cretaceous and Tertiary age. To estimate the petroleum potential of this region, an evaluation of the source rock quality of the Cretaceous and Tertiary series was undertaken. In the Sfax-Kerkennak area, most of the

Oudin

1988-01-01

251

Interactive Intranet Portal for effective Management in Tertiary Institution  

Microsoft Academic Search

Interactive Intranet Portal for effective management in Tertiary Institution is an enhanced and interactive method of managing and processing key issues in Tertiary Institution, Problems of result processing, tuition fee payment, library resources management are analyzed in this work. An interface was generated to handle this problem; the software is an interactive one. Several modules are involved in the paper,

James Agajo Akpado Kenneth Idogho O Philipa

2011-01-01

252

Tertiary Education Policy in Ghana. An Assessment: 1988-1998.  

ERIC Educational Resources Information Center

This study was one of several activities conducted at the end of a 5-year World Bank/Government of Ghana project, the Tertiary Education Project (TEP). This project was designed to assist the government of Ghana with the restructuring and quality enhancement of its tertiary education sector. Although the government had prepared an ambitious reform…

Girdwood, Alison

253

An Exploratory Study of Collaboration in New Zealand Tertiary Libraries  

ERIC Educational Resources Information Center

The shift in policy from market driven behaviour towards a more cooperative tertiary sector is having an effect on New Zealand academic libraries and their relationships. Despite this, there has been no investigation of collaboration specifically targeting New Zealand tertiary libraries. This research project examine the state of collaboration…

Finnerty, Colleen

2005-01-01

254

Discovery of Tertiary Amine and Indole Derivatives as Potent ROR?t Inverse Agonists.  

PubMed

A novel series of tertiary amines as retinoid-related orphan receptor gamma-t (ROR?t) inverse agonists was discovered through agonist/inverse agonist conversion. The level of ROR?t inhibition can be enhanced by modulating the conformational disruption of H12 in ROR?t LBD. Linker exploration and rational design led to the discovery of more potent indole-based ROR?t inverse agonists. PMID:24900774

Yang, Ting; Liu, Qian; Cheng, Yaobang; Cai, Wei; Ma, Yingli; Yang, Liuqing; Wu, Qianqian; Orband-Miller, Lisa A; Zhou, Ling; Xiang, Zhijun; Huxdorf, Melanie; Zhang, Wei; Zhang, Jing; Xiang, Jia-Ning; Leung, Stewart; Qiu, Yang; Zhong, Zhong; Elliott, John D; Lin, Xichen; Wang, Yonghui

2014-01-01

255

Understanding How Low Oxygen Levels Promote Spread of Breast Cancer | Physical Sciences in Oncology  

Cancer.gov

One of the characteristics of most breast tumors is that regions can become starved for oxygen. This condition, known as hypoxia, is associated with an increased risk that the tumor will spread beyond the breast and eventually lead to death. New research results from the Johns Hopkins Physical Sciences-Oncology Center (PS-OC) has now identified key molecular events triggered by hypoxia and demonstrated how they might enable breast tumor cells to metastasize.

256

NASA Top-level Science Question: What are the effects of gaseous and particulate emissions and climate variability and change on global atmospheric composition,  

E-print Network

NASA Top-level Science Question: What are the effects of gaseous and particulate emissions and climate variability and change on global atmospheric composition, and how will future changes in atmospheric composition affect ozone, climate, and regional/global air quality? Elements of the Science

Christian, Eric

257

Where can we find future K-12 science and math teachers? a search by academic year, discipline, and academic performance level  

Microsoft Academic Search

Responding to the increasing math and science teacher shortage in the United States, this study intended to determine which science, engineering, and math (SEM) majors during which years in their undergraduate education and from which academic performance levels are most interested in K-12 teaching. Results may aid policymakers and practitioners in making most effective use of this traditional undergraduate candidate

Laura J. Moin; Jennifer K. Dorfield; Christian D. Schunn

2005-01-01

258

The Effectiveness of Predict-Observe-Explain Tasks in Diagnosing Students' Understanding of Science and in Identifying Their Levels of Achievement.  

ERIC Educational Resources Information Center

This study involves action research to explore the effectiveness of the Predict-Observe-Explain (POE) technique in diagnosing students' understanding of science and identifying their levels of achievement. A multidimensional interpretive framework is used to interpret students' understanding of science. The research methodology incorporated…

Liew, Chong-Wah; Treagust, David F.

259

The Effects of Using Problem-Based Learning in Science and Technology Teaching upon Students' Academic Achievement and Levels of Structuring Concepts  

ERIC Educational Resources Information Center

The present study aimed to investigate the impact of the problem-based learning method used in science and technology teaching upon elementary school students' construction levels for the concepts concerning the "Systems in Our Body" unit in the science and technology course and their academic achievement. To this end, during the four-week…

Inel, Didem; Balim, Ali Gunay

2010-01-01

260

How Does the Science Writing Heuristic Approach Affect Students' Performances of Different Academic Achievement Levels? A Case for High School Chemistry  

ERIC Educational Resources Information Center

This study investigates the effects of the Science Writing Heuristic (SWH), known as an argumentation-based science inquiry approach, on Grade 9 students' performance on a post-test in relation to their academic achievement levels. Four intact classes taught by 2 chemistry teachers from a Turkish public high school were selected for the study; one…

Kingir, Sevgi; Geban, Omer; Gunel, Murat

2012-01-01

261

Low-Cost Science and Technology Materials at Kindergarten Level (Examples of National Institutions of Democratic People's Republic of Korea, People's Republic of China and Brasilia).  

ERIC Educational Resources Information Center

Increasing attention is being paid today to the place of science in general education at the preprimary, primary, and secondary levels. Educational authorities and specialists in many countries throughout the world agree about the important role that science should and can play in the context of education, but specific aims and objectives must be…

United Nations Educational, Scientific, and Cultural Organization, Paris (France). Div. of Primary Educ., Literacy & Adult Educ., Educ. in Rural Areas

262

Tertiary Excess of Fibroblast Growth Factor 23 and Hypophosphatemia Following Kidney Transplantation  

PubMed Central

Hypophosphatemia due to inappropriate urinary phosphate wasting is a frequent metabolic complication of the early period following kidney transplantation. Although previously considered to be caused by tertiary hyperparathyroidism, recent evidence suggests a primary role for persistently elevated circulating levels of the phosphorus-regulating hormone, fibroblast growth factors 23 (FGF23). In the setting of a healthy renal allograft, markedly increased FGF23 levels from the dialysis period induce renal phosphate wasting and inhibition of calcitriol production, which contribute to hypophosphatemia. While such tertiary FGF23 excess and resultant hypophosphatemia typically abates within the first few weeks to months post-transplant, some recipients manifest persistent renal phosphate wasting. Furthermore, increased FGF23 levels have been associated with increased risk of kidney disease progression, cardiovascular disease and death outside of the transplant setting. Whether tertiary FGF23 excess is associated with adverse transplant outcomes is unknown. In this article, we review the physiology of FGF23, summarize its relationship with hypophosphatemia after kidney transplantation, and speculate on its potential impact on long term outcomes of renal allograft recipients. PMID:20946192

Seeherunvong, Wacharee; Wolf, Myles

2010-01-01

263

Geologic and biostratigraphic framework of the non-marine Cretaceous-Tertiary boundary interval in western North America  

USGS Publications Warehouse

Palynologically defined Cretaceous-Tertiary boundary sites in nonmarine rocks in western North America exhibit similar characteristics. All are marked by abrupt disappearance of the regional uppermost Cretaceous palynoflora at the level of an iridium anomaly; most also yeild shock-metamorphosed minerals. All are in coal-bearing, fluvial or paludal depositional settings, although the boundary horizon may be below, within, above, or at some stratigraphic distance from coal seams. At many sites the lowermost Tertiary beds contain assemblages overwhelmed by fern spores that, together with extinctions of some groups of angiosperms, are taken as evidence of regional devastation of terrestrial plant communities and subsequent recolonization by pioneer species. ?? 1990.

Nichols, D.J.

1990-01-01

264

The concept of landscape education at school level with respect to the directions of the science of landscape  

NASA Astrophysics Data System (ADS)

School education is both a starting point for the development of various scientific disciplines (school educates future researchers) and the result of science. The landscape research is conducted within many scientific disciplines and has a long tradition. Lanscape education, which is the result of a scientific dimension, is implemented in primary school under the nature subject. Primary school education is the only level at which the geographical contents are carried out on landscape. The landscape is of interest to many disciplines: geography, architecture, social sciences and the arts. In recent years, there were many studies which contained an overview of the main strands of the science of landscape, presented the differences in the meaning of the concept and objectives of individual research disciplines. These studies have become the ground for the characterization of the concept of landscape education implemented in Polish school and its evaluation in terms of scientific achievements. A review of educational purposes, the basic content of education and achievements of students, demonstrate the influence of multiple scientific disciplines in school landscape education. The most significant share of the course content are achievements of geography disciplines, particularly: physical geography, environmental protection and landscape ecology. Other scientific fields: literature, art, psychology, sociology, and architecture do not have any impact on the school landscape education or their impact remains marginal.

Szcz?sna, Joanna

2010-01-01

265

Aqueous flooding methods for tertiary oil recovery  

DOEpatents

A method of aqueous flooding of subterranean oil bearing formation for tertiary oil recovery involves injecting through a well into the formation a low alkaline pH aqueous sodium bicarbonate flooding solution. The flooding solution's pH ranges from about 8.25 to 9.25 and comprises from 0.25 to 5 weight percent and preferably about 0.75 to 3.0 weight percent of sodium bicarbonate and includes a petroleum recovery surfactant of 0.05 to 1.0 weight percent and between 1 and 20 weight percent of sodium chloride. After flooding, an oil and water mixture is withdrawn from the well and the oil is separated from the oil and water mixture.

Peru, Deborah A. (Bartlesville, OK)

1989-01-01

266

Methyl Tertiary Butyl Ether (MTBE) Groundwater Contamination  

NSDL National Science Digital Library

Methyl tertiary-butyl ether (MTBE), a fuel additive, is highly mobile in groundwater, dissolving and traveling faster than the other petroleum constituents which tend to biodegrade and adsorb to soil particles. This unit will introduce the problem of pollutants as they move through the various soil layers and contaminate the groundwater and challenge the students to investigate the effects of MTBE spills in the environment by researching the available literature on fuel oxygenates and learning their mode of transport through the soil. Experimentally determined data, obtained in lab activities, will facilitate building models of the contamination process of the groundwater. Mathematics modeling will involve the use of spreadsheet analysis of real-world-data obtained online.

267

'Tertiary' nuclear burning - Neutron star deflagration?  

NASA Technical Reports Server (NTRS)

A motivation is presented for the idea that dense nuclear matter can burn to a new class of stable particles. One of several possibilities is an 'octet' particle which is the 16 baryon extension of alpha particle, but now composed of a pair of each of the two nucleons, (3Sigma, Delta, and 2Xi). Such 'tertiary' nuclear burning (here 'primary' is H-He and 'secondary' is He-Fe) may lead to neutron star explosions rather than collapse to a black hole, analogous to some Type I supernovae models wherein accreting white dwarfs are pushed over the Chandrasekhar mass limit but explode rather than collapse to form neutron stars. Such explosions could possibly give gamma-ray bursts and power quasars, with efficient particle acceleration in the resultant relativistic shocks. The new stable particles themselves could possibly be the sought-after weakly interacting, massive particles (WIMPs) or 'dark' matter.

Michel, F. Curtis

1988-01-01

268

Mineral Occurrences Related to Stratigraphy and Tectonics in Tertiary Sediments near Umm Lajj, Eastern Red Sea Area, Saudi Arabia  

Microsoft Academic Search

Several mineral occurrences of lead, copper and zinc, which were found recently in Tertiary sedimentary rocks on the coastal plain that stretches along the eastern margin of the Red Sea in Saudi Arabia between Umm Lajj and Al Wajh, are shown to be confined to definite stratigraphic levels (beds of arkose, reefoid limestone, and conglomerates). The mineralization is probably controlled

P. Dadet; J. Marchesseau; R. Millon; E. Motti; H. M. E. Schurmann

1970-01-01

269

’The Cream Team’: an ethnography of BTEC National Diploma (Catering and Hotel Management) students in a tertiary college  

Microsoft Academic Search

This is an ethnographic study of vocational students in a tertiary college in England who intend entering a service industry which expanded in the 1980s and is predicted to expand into the next decade. The students are outwardly highly conformist with upward mobility aspirations. They are ‘labour market?wise’ and know the importance of educational qualifications. At this level they are

George F. Riseborough

1992-01-01

270

Tertiary treatment for wastewater reuse based on the Daphnia magna filtration - comparison with conventional tertiary treatments.  

PubMed

Tertiary treatments are required to permit safe reuse of wastewater. The performance of a new biological tertiary treatment based on the filtration by a population of Daphnia magna was studied and compared with the performance of other conventional tertiary treatments such as coagulation-flocculation, settling tank, disc filtration, sand filtering and ultraviolet (UV) light. The analysis was based on the efficiency in the particle removal and Escherichia coli inactivation. The Daphnia magna treatment reduced the concentration of particles with diameters below 30 ?m by 35%, depending on abiotic parameters such as water temperature and the hydraulic retention time (HRT). The Daphnia magna filtration increased with water temperature for water temperatures >20 °C, while it remained constant for water temperatures <20 °C. Lower HRTs induced the growth of the Daphnia magna population, maintaining the same water quality. Furthermore, the Daphnia magna treatment inactivated E. coli in 1.2 log units. This inactivation was six times larger than that obtained by the conventional macrofiltration systems analyzed, although lower than the inactivation attained by UV light, which ranged between 1.5 and 4 log units. PMID:25116502

Serra, Teresa; Colomer, Jordi; Pau, Conxi; Marín, Maribel; Sala, Lluís

2014-01-01

271

The effects of cooperative learning in a physical science course for elementary/middle level preservice teachers  

NASA Astrophysics Data System (ADS)

Although many studies have shown the effectiveness of cooperative learning in a variety of settings in grades K-12, relatively few have focused on higher education. This study compared two physical science laboratory sections in a course for elementary/middle level preservice teachers. One section was taught in the traditional method, and the other was instructed using the Learning Together technique of cooperative learning. Comparisons between the two laboratory sections assessed any differences in student achievement and collaborative skills. In addition, the cooperative learning group completed a questionnaire that assessed their perception of the effectiveness of cooperative learning compared to more traditional methods of instruction, and their attitudes toward the laboratory section. Although no significant differences were observed in achievement, the cooperative learning group exhibited significant gains in collaborative skills. By the end of the course, cooperative learning students indicated a high comfort level for the laboratory.

Burron, Bruce; James, M. Lynn; Ambrosio, Anthony L.

272

Learning in a personal context: Levels of choice in a free choice learning environment in science and natural history museums  

NASA Astrophysics Data System (ADS)

The study aims to characterize contextual learning during class visits to science and natural history museums. Based on previous studies, we assumed that outdoor learning is different from classroom-based learning, and free choice learning in the museums enhances the expression of learning in personal context. We studied about 750 students participating in class visits at four museums, focusing on the levels of choice provided through the activity. The museums were of different sizes, locations, visitor number, and foci. A descriptive-interpretative approach was adopted, with data sources comprising observations, semistructured interviews with students, and museum worksheets. Analysis of the museum activities has yielded four levels of choice that affect learning from no choice to free choice activities. The effectiveness of learning was examined as well by looking at task behavior, linkage to the students' prior knowledge and their school's science curriculum, and linkage to the students' life and experience. Our findings indicate that activities of limited choice offered scaffolding, allowed the students to control their learning, and enhanced deeper engagement in the learning process. Within all the choice opportunities, the students connected the visit to their own life experiences and to their prior knowledge, even when the guided activity scarcely addressed it. Critical responses were obtained mainly when the museum environment allows a variety of learning opportunities without directing the students.

Bamberger, Yael; Tal, Tali

2007-01-01

273

Large-scale leaching of low-level radioactive wastes: Environmental Sciences Division publication No. 2737  

SciTech Connect

The large-scale leaching of low-level radioactive wastes was conducted using 208- and 314-L drums containing radioactive wastes generated at Oak Ridge National Laboratory and Oak Ridge Gaseous Diffusion Plant. Ten 208-L drums containing low-level transuranic (TRU) wastes and four 314-L overpack drums containing compacted drums from a Westinghouse-Hittman drum compaction demonstration were leached with potable drinking water, using a unique design to simulate the flooded conditions of a shallow-land burial site. The TRU drums selected were those that contained less than 3.7 kBq/G (100 nCi/g) of transuranics and less than 5 mR/h gamma radiation at the surface of the drum. Only one of the ten drums generated a leachate that contained detectable levels of alpha activity over a 27-d leaching period, with concentrations ranging from approximately 200 to 1200 Bq/L. Concentrations of inorganic and organic constituents were also monitored in the drum leachates. Maximum concentrations of organic compounds phenol, phthalates, bromodichloromethane, chlorodibromomethane, chloroform, chlorinated ethanes, and ethenes were quite low, usually on the order of 0.05 to 0.5 mg/L, indicating that the shallow-land disposal of these materials probably would not contaminate groundwater supplies with hazardous organic chemicals. Only one of the overpack drums generated leachates containing detectable concentrations of /sup 137/Cs, /sup 60/Co, and /sup 90/Sr over 20 d of leaching. Another showed detectable levels of /sup 90/Sr and another, detectable levels of alpha activity in their leachates. Concentrations of volatile organic compounds decreased rapidly on continued leaching, indicating that disposing of these low-level radioactive wastes in a shallow-land burial site probably would not contaminate the groundwater. A waste model was used to demonstrate how concentrations of leachable constituents from a waste can be estimated. 8 refs., 9 figs., 22 tabs.

Francis, C.W.

1986-12-01

274

Unheard voices: outcomes of tertiary care for treatment-refractory psychosis  

PubMed Central

Aims and method In up to a quarter of patients, schizophrenia is resistant to standard treatments. We undertook a naturalistic study of 153 patients treated in the tertiary referral in-patient unit of the National Psychosis Service based at the Maudsley Hospital in London. A retrospective analysis of symptoms on admission and discharge was undertaken using the OPCRIT tool, along with preliminary economic modelling of potential costs related to changes in accommodation. Results In-patient treatment demonstrated statistically significant improvements in all symptom categories in patients already identified as having schizophrenia refractory to standard secondary care. The preliminary cost analysis showed net savings to referring authorities due to changes from pre- to post-discharge accommodation. Clinical implications Despite the enormous clinical, personal and societal burden of refractory psychotic illnesses, there is insufficient information on the outcomes of specialised tertiary-level care. Our pilot data support its utility in all domains measured. PMID:25237502

Sarkar, S. Neil; Tracy, Derek K.; Fernandez, Maria-Jesus Mateos; Nalesnik, Natasza; Dhillon, Gurbinder; Onwumere, Juliana; Prins, Anne-Marye; Schepman, Karen; Collier, Tracy; White, Thomas P.; Patel, Anita; Gaughran, Fiona; Shergill, Sukhwinder S.

2014-01-01

275

Communicating Climate Change Science to Stakeholders for Assessments of Impact and Adaptation: Experiences at the Municipal Level in Canada  

NASA Astrophysics Data System (ADS)

The assessment of climate change impacts and the identification of adaptation strategies require understandable communication of climate change science and its uncertainties to a diverse group of stakeholders. This paper will report on the experience being gained from a set of municipal case studies conducted in Canada, where climate change impacts such as water resource depletion, permafrost melting and coastal sea level rise are being addressed. Two aspects will be discussed: the local process of stakeholder interaction and the effort to bring the local experiences to a national level through development of municipal best practice guides. Ideally, stakeholders are engaged at the local level through a structured process. This is to avoid the common problem that pre-existing tensions between stakeholders tend to dominate unstructured discussions and distract attention from the target issue. One-on-one interviews with the stakeholders and research into the socio-economic history of the communities provide background on the issues that may arise before group workshops are attempted. When workshops involving stakeholders are held, they are professionally facilitated and the science delivery is carefully rationed into digestible portions that enable informed discussion of specific climate change scenarios. Municipalities can be engaged at political, practitioner and public levels not only as major stakeholders, but also as key partners in the communication process. We have used presentations to council, direct involvement of city planning departments and public events such as Science and Technology Week to nurture two-way communication. We have also put considerable thought into the effort to communicate these experiences to the over one thousand communities across the country that will not benefit from a case study. Our initial approach was to develop best practice guides on climate change topics based on the successes and lessons learned in the case studies. While the idea has been generally welcomed by organizations representing Canadian municipalities and professional planners, the large matrix of user groups and climate change issues makes the development of generic climate change best practice guides extremely challenging. An alternate approach would be to contribute climate change sections to existing and future best practice guides developed by the professional organizations concerned with municipal infrastructure, environment and land use. We are presently organizing a national workshop to canvas user groups on the best form for the guides.

Hill, P. R.; Mate, D.; Tansey, J. D.

2004-12-01

276

Diagnostic assessment of preparedness of level one sports science students for biomechanics modules  

Microsoft Academic Search

The primary objective of this study was to investigate the use of a diagnostic test to assess the prepardness of level one students for a sports biomechanics module. During their first week at university, a cohort of 108 students completed a diagnostic test at the end of their first lecture in sports biomechanics, with no prior notice. Upon completion of

Sharon J. Dixon

2005-01-01

277

EXPLORING STUDENT-LEVEL EXPLANATORY FACTORS IN SCIENCE ACHIEVEMENT IN SOUTH AFRICAN SECONDARY SCHOOLS  

Microsoft Academic Search

South Africa's education system is still deep in the throes of reform under its third Minister of Education since 1994. However, it is marked by underachievement of pupils at each level of the system. Poor communities, in particular, those of rural Africans bear the brunt of the past inequalities and these are continuously reflected in the national results of the

Sarah Howie; Vanessa Scherman; Elsie Venter

278

Diagnostic Assessment of Preparedness of Level One Sports Science Students for Biomechanics Modules  

ERIC Educational Resources Information Center

The primary objective of this study was to investigate the use of a diagnostic test to assess the preparedness of level one students for a sports biomechanics module. During their first week at university, a cohort of 108 students completed a diagnostic test at the end of their first lecture in sports biomechanics, with no prior notice. Upon…

Dixon, Sharon J.

2005-01-01

279

Fidelity of secondary and tertiary interactions in tRNA.  

PubMed Central

Contingency table analysis has previously been used to detect sequence correlations in RNAs caused by either secondary or tertiary interactions. An approach known as matrix reduction is developed here as an alternative to the usual Chi square test. This approach is especially sensitive to covariation between equivalent positions and is effective at detecting tertiary interactions that exhibit such covariation. Matrix reduction was also effective at detecting Watson-Crick base-pairs that exhibit a high degree of pairing fidelity. The method was applied to five closely related structural classes of tRNA and a number of tertiary interactions were detected in each class. PMID:3387243

Haselman, T; Chappelear, J E; Fox, G E

1988-01-01

280

Science.  

ERIC Educational Resources Information Center

This document contains the following papers on science instruction and technology: "A 3-D Journey in Space: A New Visual Cognitive Adventure" (Yoav Yair, Rachel Mintz, and Shai Litvak); "Using Collaborative Inquiry and Interactive Technologies in an Environmental Science Project for Middle School Teachers: A Description and Analysis" (Patricia…

Roach, Linda E., Ed.

281

System-Level Verification of Science Instruments Prior to Installation at TMT  

NASA Astrophysics Data System (ADS)

Science instruments for TMT will share many similarities with those built for large space observatories such as HST and JWST. They will be physically large, scientifically sophisticated and technologically complex. They will represent very significant investments of time and money by PI-led teams with common scientific interests, but from many academic institutions, industry partners and even nations. These teams will verify the basic functionality and performance of their instruments, but may not each have facilities to test the many complex interfaces to and interactions with the observatory. Once installed on the telescope and commissioned, the instruments will be expected to function for many years with very limited opportunities for servicing. These and other considerations argue that a common facility that provides reasonably high fidelity simulation of the TMT mechanical and optical environments, AO system interfaces, operations and data management systems and other critical functions would enable a confidence-building final step in the Integration and Test process. This poster illustrates how high-quality Ground Support Equipment was used to prepare seven instruments for Hubble, develop and validate wave-front sensing and control algorithms for James Webb, simulate the optical characteristics of JWST, conduct vibration and modal surveys, and produce performance data that were compared with predictions of integrated models. Analogous capabilities could be developed to support TMT, ensuring delivery of fully qualified instruments to the observatory.

Ebbets, Dennis; Lystrup, Makenzie

2014-07-01

282

The Effect of Retesting on End-of-Semester Performance in High School Chemistry at Three Levels of Previous Science Achievement.  

ERIC Educational Resources Information Center

Examines whether retesting: (1) affects achievement of students (N=95) grouped according to previous achievement in science; and (2) influences students to delay studying and perform at a low level on initial tests. Also examines whether procrastination of retested students is affected by their achievement level. (DS)

Deboer, George E.

1981-01-01

283

A Comparison of the Readability of Community College Social Science Textbooks with Student Reading Levels and the Effect on Academic Achievement.  

ERIC Educational Resources Information Center

A determination of the reading grade placement levels (GPLs) and final course grades of community college students in relationship to the GPLs of their assigned social science textbooks was the focus of a study at Citrus Community College (Florida). Dale-Chall readability placement levels were calculated for eight textbooks used in 19 classes of…

Bertalan, John J.

284

Earthquake dates and water level changes in wells in the Eskisehir region,Turkey Hydrology and Earth System Sciences, 7(5), 777781 (2003) EGU  

E-print Network

Earthquake dates and water level changes in wells in the Eskisehir region,Turkey 777 Hydrology and Earth System Sciences, 7(5), 777781 (2003) © EGU Technical Note: Earthquake dates and water level@ogu.edu.tr Abstract Although satisfactory results have yet to be obtained in earthquake prediction, one of the most

Paris-Sud XI, Université de

285

RNA tertiary structure analysis by 2'-hydroxyl molecular interference.  

PubMed

We introduce a melded chemical and computational approach for probing and modeling higher-order intramolecular tertiary interactions in RNA. 2'-Hydroxyl molecular interference (HMX) identifies nucleotides in highly packed regions of an RNA by exploiting the ability of bulky adducts at the 2'-hydroxyl position to disrupt overall RNA structure. HMX was found to be exceptionally selective for quantitative detection of higher-order and tertiary interactions. When incorporated as experimental constraints in discrete molecular dynamics simulations, HMX information yielded accurate three-dimensional models, emphasizing the power of molecular interference to guide RNA tertiary structure analysis and fold refinement. In the case of a large, multidomain RNA, the Tetrahymena group I intron, HMX identified multiple distinct sets of tertiary structure interaction groups in a single, concise experiment. PMID:25341083

Homan, Philip J; Tandon, Arpit; Rice, Greggory M; Ding, Feng; Dokholyan, Nikolay V; Weeks, Kevin M

2014-11-01

286

Experimental Pathology Laboratories, Inc. Methyl-Tertiary-Butyl Ether  

E-print Network

Experimental Pathology Laboratories, Inc. Methyl-Tertiary-Butyl Ether C00117F/00117-69 AMENDED PATHOLOGY QUALITY ASSESSMENT REVIEW AND PWG Toxicology Program Research Triangle Park, NC 27709 Submitted by: Experimental Pathology Laboratories, Inc

Baker, Chris I.

287

Experimental Pathology Laboratories, Inc. Ethyl-Tertiary-Butyl Ether  

E-print Network

Experimental Pathology Laboratories, Inc. Ethyl-Tertiary-Butyl Ether C00117/00117-64 AMENDED PATHOLOGY QUALITY ASSESSMENT REVIEW AND PWG COORDINATOR'S REPORT Park, NC 27709 Submitted by: Experimental Pathology Laboratories, Inc. Street Address: Mailing Address

Baker, Chris I.

288

Facility Benchmarking Trends in Tertiary Education - An Australian Case Study.  

ERIC Educational Resources Information Center

Presents how Australia's facility managers are responding to the growing impact of tertiary education participation and the increase in educational facility usage. Topics cover strategic asset management and the benchmarking of education physical assets and postsecondary institutions. (GR)

Fisher, Kenn

2001-01-01

289

DIRECT SYNTHESIS OF TERTIARY AMINES IN WATER USING MICROWAVES  

EPA Science Inventory

A direct synthesis of tertiary amines is presented that proceeds expeditiously via N-alkylation of amines using alkyl halides in alkaline aqueous medium. This environmentally benign reaction is accelerated upon exposure to microwave irradiation resulting in shortened reaction tim...

290

A multi-level differential item functioning analysis of trends in international mathematics and science study: Potential sources of gender and minority difference among U.S. eighth graders' science achievement  

NASA Astrophysics Data System (ADS)

Science is an area where a large achievement gap has been observed between White and minority, and between male and female students. The science minority gap has continued as indicated by the National Assessment of Educational Progress and the Trends in International Mathematics and Science Studies (TIMSS). TIMSS also shows a gender gap favoring males emerging at the eighth grade. Both gaps continue to be wider in the number of doctoral degrees and full professorships awarded (NSF, 2008). The current study investigated both minority and gender achievement gaps in science utilizing a multi-level differential item functioning (DIF) methodology (Kamata, 2001) within fully Bayesian framework. All dichotomously coded items from TIMSS 2007 science assessment at eighth grade were analyzed. Both gender DIF and minority DIF were studied. Multi-level models were employed to identify DIF items and sources of DIF at both student and teacher levels. The study found that several student variables were potential sources of achievement gaps. It was also found that gender DIF favoring male students was more noticeable in the content areas of physics and earth science than biology and chemistry. In terms of item type, the majority of these gender DIF items were multiple choice than constructed response items. Female students also performed less well on items requiring visual-spatial ability. Minority students performed significantly worse on physics and earth science items as well. A higher percentage of minority DIF items in earth science and biology were constructed response than multiple choice items, indicating that literacy may be the cause of minority DIF. Three-level model results suggested that some teacher variables may be the cause of DIF variations from teacher to teacher. It is essential for both middle school science teachers and science educators to find instructional methods that work more effectively to improve science achievement of both female and minority students. Physics and earth science are two areas to be improved for both groups. Curriculum and instruction need to enhance female students' learning interests and give them opportunities to improve their visual perception skills. Science instruction should address improving minority students' literacy skills while teaching science.

Qian, Xiaoyu

291

"G.P.S Matrices" programme: A method to improve the mastery level of social science students in matrices operations  

NASA Astrophysics Data System (ADS)

The purpose of this action research was to increase the mastery level of Form Five Social Science students in Tawau II National Secondary School in the operations of addition, subtraction and multiplication of matrices in Mathematics. A total of 30 students were involved. Preliminary findings through the analysis of pre-test results and questionnaire had identified the main problem faced in which the students felt confused with the application of principles of the operations of matrices when performing these operations. Therefore, an action research was conducted using an intervention programme called "G.P.S Matrices" to overcome the problem. This programme was divided into three phases. 'Gift of Matrices' phase aimed at forming matrix teaching aids. The second and third phases were 'Positioning the Elements of Matrices' and 'Strenghtening the Concept of Matrices'. These two phases were aimed at increasing the level of understanding and memory of the students towards the principles of matrix operations. Besides, this third phase was also aimed at creating an interesting learning environment. A comparison between the results of pre-test and post-test had shown a remarkable improvement in students' performances after implementing the programme. In addition, the analysis of interview findings also indicated a positive feedback on the changes in students' attitude, particularly in the aspect of students' understanding level. Moreover, the level of students' memory also increased following the use of the concrete matrix teaching aids created in phase one. Besides, teachers felt encouraging when conducive learning environment was created through students' presentation activity held in third phase. Furthermore, students were voluntarily involved in these student-centred activities. In conclusion, this research findings showed an increase in the mastery level of students in these three matrix operations and thus the objective of the research had been achieved.

Lee, Ken Voon

2013-04-01

292

Science PhD Career Preferences: Levels, Changes, and Advisor Encouragement  

PubMed Central

Even though academic research is often viewed as the preferred career path for PhD trained scientists, most U.S. graduates enter careers in industry, government, or “alternative careers.” There has been a growing concern that these career patterns reflect fundamental imbalances between the supply of scientists seeking academic positions and the availability of such positions. However, while government statistics provide insights into realized career transitions, there is little systematic data on scientists' career preferences and thus on the degree to which there is a mismatch between observed career paths and scientists' preferences. Moreover, we lack systematic evidence whether career preferences adjust over the course of the PhD training and to what extent advisors exacerbate imbalances by encouraging their students to pursue academic positions. Based on a national survey of PhD students at tier-one U.S. institutions, we provide insights into the career preferences of junior scientists across the life sciences, physics, and chemistry. We also show that the attractiveness of academic careers decreases significantly over the course of the PhD program, despite the fact that advisors strongly encourage academic careers over non-academic careers. Our data provide an empirical basis for common concerns regarding labor market imbalances. Our results also suggest the need for mechanisms that provide PhD applicants with information that allows them to carefully weigh the costs and benefits of pursuing a PhD, as well as for mechanisms that complement the job market advice advisors give to their current students. PMID:22567149

Sauermann, Henry; Roach, Michael

2012-01-01

293

The Cretaceous/ Tertiary Boundary At Iridium Hill, Garfield County, Montana  

NSDL National Science Digital Library

The goal of this virtual field trip to Iridium Hill, Montana is to investigate the disappearance of dinosaur fossils above the Cretaceous/ Tertiary boundary. The site provides rock outcrop photos of Cretaceous and Tertiary strata (Hell Creek and Fort Union Formations), stratigraphic sections and supporting text for this classic iridium-bearing locality. Topics include the K/T boundary, iridium concentrations, stratigraphy, sedimentology and, fluvial and lacustrine depositional environments.

Limited, Athro

294

Referrals to tertiary psychotherapy services: A road to nowhere?  

Microsoft Academic Search

Market?oriented changes within the NHS in the last 15 years have increasingly created difficulties with funding of referrals to tertiary psychotherapy health providers. The often?cumbersome, time?consuming and expensive bureaucratic procedures now required by the Primary Care Trusts to fund patients referred to tertiary care services leads to lengthy delays in the pathway from assessment to treatment. This paper describes a

Marco Chiesa

2008-01-01

295

Impacts of an Inquiry Teaching Method on Earth Science Students' Learning Outcomes and Attitudes at the Secondary School Level.  

ERIC Educational Resources Information Center

This paper summarizes two companion studies that were designed to investigate the impacts of an inquiry teaching method on Earth science students' achievement and attitudes towards Earth science in secondary schools. Subjects were 557 students (9th grade) enrolled in 14 Earth science classes. Two Earth science units, including topics of astronomy…

Mao, Song-Ling; Chang, Chun-Yen

296

Genome evolution of a tertiary dinoflagellate plastid.  

PubMed

The dinoflagellates have repeatedly replaced their ancestral peridinin-plastid by plastids derived from a variety of algal lineages ranging from green algae to diatoms. Here, we have characterized the genome of a dinoflagellate plastid of tertiary origin in order to understand the evolutionary processes that have shaped the organelle since it was acquired as a symbiont cell. To address this, the genome of the haptophyte-derived plastid in Karlodinium veneficum was analyzed by Sanger sequencing of library clones and 454 pyrosequencing of plastid enriched DNA fractions. The sequences were assembled into a single contig of 143 kb, encoding 70 proteins, 3 rRNAs and a nearly full set of tRNAs. Comparative genomics revealed massive rearrangements and gene losses compared to the haptophyte plastid; only a small fraction of the gene clusters usually found in haptophytes as well as other types of plastids are present in K. veneficum. Despite the reduced number of genes, the K. veneficum plastid genome has retained a large size due to expanded intergenic regions. Some of the plastid genes are highly diverged and may be pseudogenes or subject to RNA editing. Gene losses and rearrangements are also features of the genomes of the peridinin-containing plastids, apicomplexa and Chromera, suggesting that the evolutionary processes that once shaped these plastids have occurred at multiple independent occasions over the history of the Alveolata. PMID:21541332

Gabrielsen, Tove M; Minge, Marianne A; Espelund, Mari; Tooming-Klunderud, Ave; Patil, Vishwanath; Nederbragt, Alexander J; Otis, Christian; Turmel, Monique; Shalchian-Tabrizi, Kamran; Lemieux, Claude; Jakobsen, Kjetill S

2011-01-01

297

Aqueous flooding methods for tertiary oil recovery  

SciTech Connect

A method is described for flooding of a subterranean petroleum bearing formation for tertiary oil recovery, comprising the steps of providing at least one production well having at least one inlet within the subterranean petroleum bearing formation, and at least one injection well having at least one outlet within the subterranean petroleum bearing formation, injecting into the petroleum bearing formation through the injection well, a low alkaline pH aqueous sodium bicarbonate flooding solution having a pH in the range of from about 8.25 to about 9.25 comprising from about 0.25 to about 5 weight percent of sodium bicarbonate, from about 0.05 to about 1.0 weight percent of petroleum recovery surfactant, and from about 1 to about 20 weight percent of sodium chloride, based on the total weight of the aqueous flooding solution, withdrawing through at least one inlet of the production wells, an oil and water mixture comprising petroleum from the subterranean petroleum bearing formation and at least a portion of the low alkaline pH sodium bicarbonate aqueous flooding solution, and separating the oil from the aqueous oil and water mixture.

Peru, D.A.

1989-04-04

298

The Tertiary tectonics of the southeast Asia  

SciTech Connect

Most of the terranes in eastern Asia appear to be relics of arcs, oceanic islands, and subduction complexes. They have collided and accreted from the inner (northwestern) side in China since the Silurian. They are characterized by three stages of Pacific and Tethys evolution. The first collision is related to the Pacific domain in the Permian in which these movements are not clearly reconstructed. The second collision is related to the closure of the Paleo-Tethys in the Late Triassic to Early Jurassic. The third is related to closure of the Neo-Tethys and the subsequent collision of India in the Tertiary. Southeast Asia is in one of the most enigmatic plate boundaries in the world, forming many small plates, collisions, and consumptions. This complication is also suggested to be a result of the northward movement of Australia since its break-up from Gondwanaland in the Cretaceous. During their evolution, most of them have associated with arcs. These arcs also have formed superimpositions on the older exotic blocks of terranes. They are reconstructed on the base of the regular duration on the formation of arcs and backarc basins, which can be seen in the Western Pacific Arc Chain.

Honza, Eiichi (Geological Survey of Japan, Tsukuba (Japan))

1990-06-01

299

Tertiary model of a plant cellulose synthase  

PubMed Central

A 3D atomistic model of a plant cellulose synthase (CESA) has remained elusive despite over forty years of experimental effort. Here, we report a computationally predicted 3D structure of 506 amino acids of cotton CESA within the cytosolic region. Comparison of the predicted plant CESA structure with the solved structure of a bacterial cellulose-synthesizing protein validates the overall fold of the modeled glycosyltransferase (GT) domain. The coaligned plant and bacterial GT domains share a six-stranded ?-sheet, five ?-helices, and conserved motifs similar to those required for catalysis in other GT-2 glycosyltransferases. Extending beyond the cross-kingdom similarities related to cellulose polymerization, the predicted structure of cotton CESA reveals that plant-specific modules (plant-conserved region and class-specific region) fold into distinct subdomains on the periphery of the catalytic region. Computational results support the importance of the plant-conserved region and/or class-specific region in CESA oligomerization to form the multimeric cellulose–synthesis complexes that are characteristic of plants. Relatively high sequence conservation between plant CESAs allowed mapping of known mutations and two previously undescribed mutations that perturb cellulose synthesis in Arabidopsis thaliana to their analogous positions in the modeled structure. Most of these mutation sites are near the predicted catalytic region, and the confluence of other mutation sites supports the existence of previously undefined functional nodes within the catalytic core of CESA. Overall, the predicted tertiary structure provides a platform for the biochemical engineering of plant CESAs. PMID:23592721

Sethaphong, Latsavongsakda; Haigler, Candace H.; Kubicki, James D.; Zimmer, Jochen; Bonetta, Dario; DeBolt, Seth; Yingling, Yaroslava G.

2013-01-01

300

Peripartum hysterectomy in a tertiary hospital in Western Sydney.  

PubMed

The aim of this study was to review the incidence, indication, management and complications of peripartum hysterectomy (PH) in a tertiary level hospital over a decade. A retrospective review of all cases of PH performed at Westmead Hospital, Western Sydney, 2003-2012, was undertaken. PH was defined as hysterectomy performed after 20 weeks' gestation or any time after delivery but within 6 weeks' postpartum ( Awan et al. 2011 ). There were 56 cases of peripartum hysterectomy of 46,177 births, a rate of 1.22 per 1,000 births. The most common indication for PH was morbid adherence of the placenta (58.2%) followed by uterine atony. Having a history of both caesarean section and placenta praevia is highly associated with a morbidly adherent placenta in the index pregnancy (p = 0.002). The most common complication was coagulopathy followed by febrile illness and urinary tract injury. Our data showed previous caesarean section and placenta praevia to be associated with abnormal placentation, the leading indication for PH. Since there is an association between a planned caesarean hysterectomy and reduced amount of estimated blood loss and blood transfused, the knowledge of placentation and adequate preoperative planning and consideration for elective hysterectomy could be beneficial. The morbidity associated with PH is considerable. PMID:25264917

Shamsa, A; Harris, A; Anpalagan, A

2014-09-29

301

Carbonate reservoirs at the Mesozoic-Tertiary unconformity, northeast Spain  

SciTech Connect

Carbonates at the Mesozoic-Tertiary unconformity in northeast Spain show four types/stages of evolution of reservoir properties: karstification, coastal reworking, Miocene organic buildups, and Pliocene burial. Subaerial exposure during Paleogene-early Miocene rifting developed a complex fracture-controlled paleokrast facies, showing up to three evolution levels with well-developed cavern and vuggy porosity (1). During the Miocene, the paleokrast profile was intensively reworked into a variety of breccias, conglomerates, and calcarenites in both alluvial and coastal depositional settings. Gravitational displacement of largely karstified hillsides was common. These reworked paleokarst deposits (2) present excellent reservoir properties. The Miocene formations onlap the karstified Mesozoic and the reworked facies; these formations include coral reefs and foramalgal buildups (3) with primary and secondary porosity. Finally, a late fracture event (attributed to the Pliocene) affected the buried and lithified paleokarst deposits and lower-middle Miocene formations (4). This fracture event is associated with vuggy corrosion, dolomitization, ore mineralization, and leaching of Mesozoic to middle Miocene carbonates. Several horizons with chalky microporosity are also tentatively related to this Pliocene event. These four phases of reservoir evolution are also recognized in northern Morocco and southern Italy.

Esteban, M.

1988-08-01

302

Is It Possible to Teach Music Composition Today? A Search for the Challenges of Teaching Music Composition to Student Composers in a Tertiary Context  

ERIC Educational Resources Information Center

Our aim is to identify the challenges of teaching music composition to today's students of composition at a tertiary or professional level. We undertake this by two different approaches: on one level, by establishing a context through reviewing literature on the teaching practices of three renowned teachers from the twentieth century; on a second…

Mateos-Moreno, Daniel

2011-01-01

303

LSST telescope primary/tertiary mirror hardpoints  

NASA Astrophysics Data System (ADS)

The Large Synoptic Survey Telescope (LSST) utilizes an 8.4-meter cast borosilicate primary/tertiary mirror (M1M3). This mirror system has stringent vibration and stiffness requirements because the LSST optical system does not include a fast steering mirror and the mission requires a short slew and settling time. The position stability of the M1M3 relative to the mirror cell is controlled by six displacement controlled actuators (subsequently referred to as "hardpoints") that form a large hexapod. This design is based largely on previous hardpoints implemented for borosilicate mirror positioning. Traditionally, all dynamic forces applied to these mirrors are reacted through their hardpoints. Consequently, the characteristics of these hardpoints critically affect the ability of the telescope to meet the stringent dynamic requirements without overstressing the mirror. The hardpoints must have a high stiffness of 120 N/um in the axial direction, while protecting the mirror by limiting the loads in all six degrees of freedom. The non-axial direction loads are limited by flexures. The axial loads are limited by a pneumatic breakaway mechanism. Since the hardpoints react the dynamic mirror loads, the axial breakaway force may limit the telescope's slewing accelerations. The travel of the breakaway mechanism must accommodate the transfer of the mirror from its active supports to its static supports. The hardpoint positioning mechanism must have sufficient travel and resolution to properly position the mirror relative to the mirror cell. Fulfilling these functions also requires numerous sensors, including a precision axial load cell which is paramount in determining the figure control actuator forces.

DeVries, Joe; Neill, Douglas; Hileman, Ed

2010-07-01

304

Near total parathyroidectomy is effective therapy for tertiary hyperparathyroidism.  

PubMed

Tertiary hyperparathyroidism (3°HPT) is defined as persistent hyperparathyroidism with hypercalcemia after renal transplantation. Near total parathyroidectomy (NTPTX) is the current standard for surgical intervention. The purpose of this study was to identify outcomes of NTPTX. A retrospective review was conducted of surgeries performed between 1994 and 2013. NTPTX resulted in resolution of 96.9 per cent of patients' hypercalcemia at a median follow-up of three years (interquartile range [IQR], 1 to 8). However, 3.1 per cent of patients remained hypercalcemic with a mean calcium of 10.5 ± 0.2 mg/dL. A total of 78.4 per cent of patients had parathyroid hormone (PTH) levels below 250 pg/mL at a median follow-up of two years (IQR, 2 to 8). The remaining 21.6 per cent had a median PTH of 535 (IQR, 345 to 857). PTH levels dropped from a median of 745 (IQR, 285.75 to 1594.25) pg/mL to 97 (IQR, 60 to 285) pg/mL one month post-NTPTX (P < 0.01). The most frequent complication was transient hypocalcemia in 27.1 per cent of patients, but no patients became permanently hypocalcemic. In the 1-month postoperative period, only one patient had a cardiac complication, and there was 0 per cent all-cause mortality. Glomerular filtration rate fell from 57.9 ± 28.3 mL/min pre-NTPTX to 53.2 ± 27.5 mL/min at 1-year post-NTPTX (P < 0.01). NTPTX effectively treats hypercalcemia in 3°HPT. However, PTH remains elevated (greater than 250) in 21.6 per cent of patients. PMID:24987894

Dewberry, Lindel Krige; Weber, Collin; Sharma, Jyotirmay

2014-07-01

305

Prosthetic Rehabilitation of Patients with Maxillary Defects in a Nigerian Tertiary Hospital  

PubMed Central

Background: Maxillary defects are managed by prosthodontic rehabilitation using obturators. This rehabilitation goes through various stages, which invariably affects the quality-of-life of the patients. Aim: This study aims to analyze the types and design of obturators used in the rehabilitation of maxillary defects at a tertiary health institution in Nigeria. Materials and Methods: This is a retrospective study of all patients with maxillary defects treated at a tertiary institution between the period of October 2010 and May 2013. The data of interest collected from the patient's register and case notes include age, gender, type of defects, design of obturators and conditions for which treatment was offered. The collected data were analyzed using Statistical Package for Social Sciences version 16.0 (Chicago, Illinois, 2010) and result presented in frequencies and tables. Results: A total of 19 case notes were retrieved. The age range was 5-73 years with the mean age of 46.37 ± 19.02 and peak age incidence at 41-60 years. The male: female ratio was 1:1.4. Surgical defects were the most common type of maxillary defects seen; accounting for 89.5% (17/19) of the cases, which were mostly associated with malignant tumors. Immediate surgical obturators were provided for 63.2% (12/19) of the subjects. Majority 70.6% (12/17) of those with surgical defects received immediate surgical obturators while all those with congenital defect were given feeding plate. There was a statistically significant association between the type of maxillary defect and type of obturator provided (P < 0.01). Conclusion: The results of this study suggest that majority of the obturators fabricated for patients with maxillary defect at the Tertiary health institution in Nigeria were immediate surgical obturators. Pre-surgical patient education and follow-up care is advocated. PMID:25221718

Omo, JO; Sede, MA; Enabulele, JE

2014-01-01

306

Research Review Series, Science Paper 3. A Summary of Research in Science Education for the Years of 1965-67, College Level.  

ERIC Educational Resources Information Center

This review of research related to college and university science teaching and learning is based upon reports published from 1965 through 1967 and contained in the collection of the ERIC Information Analysis Center for Science, Mathematics, and Environmental Education. The 77 studies are abstracted under the following headings, with a short…

Montean, John; Butzow, John

307

Curriculum Policy of the Graduate School of Maritime Sciences The Graduate School of Maritime Sciences at Kobe University will provide high-level  

E-print Network

, implementation, evaluation, and management of logistics systems. These systems are primarily based on maritime Logistics Sciences, and Marine Engineering. The Division of Maritime Management Sciences takes charge of education and research regarding the management and construction of maritime system to guarantee safety

Banbara, Mutsunori

308

Outcomes of a science teacher development program for middle-level interdisciplinary teams: Relationships among teachers' beliefs, school contexts, and implementation  

NASA Astrophysics Data System (ADS)

Project Alliance, a teacher development program conducted by George Mason University and the American Association for the Advancement of Science with National Science Foundation funding (ESI-9355753) from 1994 to 1998, provided professional development for interdisciplinary teaching teams to enhance middle-level science instruction. Teachers experienced the same kinds of constructivist, hands-on, inquiry-based learning environments that they were expected to create for their students. The purposes of this study of 48 participants are (a) to assess the effectiveness of Project Alliance, and (b) to investigate relationships among teachers' beliefs about teaching and learning, school contexts, and individual teachers' implementation of the program's goals. Two cohorts of interdisciplinary teams from the mid-Atlantic region volunteered for two years each. During the first of two summer institutes, teachers engaged in graduate studies of environmental science, geology, technology, pedagogical content knowledge, and team teaching methods and designed integrated environmental science curriculum units to implement in their schools during the following academic year. Quantitative and qualitative methods were used to investigate individual teachers' implementation of the curriculum units. Data sources included surveys, videotaped presentations, interviews, focus groups, and classroom observations. Quantitative analyses employed exploratory correlation and regression procedures. Qualitative analyses followed a constant comparative process. Predictor variables were (1) teachers' personal epistemologies, measured by the Attitudes about Reality Scale; (2) certainty of practice, assessed with the Expert Science Teaching Evaluation Model, Teaching Practices Assessment Inventory; (3) school organizational structure; and (4) administrator involvement. Results showed that more than half of the teachers successfully implemented their units and all implemented unit-related activities. Both school organizational structure and the level of administrator involvement predicted an individual teacher's level of implementation, while personal epistemology and certainty of practice did not. Teachers' practice gradually became more constructivist and teaming increased their confidence in inquiry-based teaching. Project Alliance enhanced environmental science instruction in schools that supported teaming.

Olkin, Arlene H.

309

A Comparison of Indirectness in the Teaching of Science at the Elementary, Junior High, and High School Levels by Means of Interaction Analysis.  

ERIC Educational Resources Information Center

A comparison was made of indirect and direct verbal interaction of science teachers in elementary, junior high, and senior high school levels. Also analyzed were the mean ratios of indirectness compared to teacher experience, knowledge of curricula, and self-perception of teaching method. Data were collected by means of Flanders' Interaction…

Perreault, Conrad Arnold

310

Incorporation of groundwater losses and well level data in rainfall-runoff models illustrated using the PDM Hydrology and Earth System Sciences, 6(1), 2538 (2002) EGS  

E-print Network

Incorporation of groundwater losses and well level data in rainfall-runoff models illustrated using the PDM 25 Hydrology and Earth System Sciences, 6(1), 25­38 (2002) © EGS Incorporation of groundwater ephemeral streamflow behaviour or to allow for the possibility of negative recharge arising from groundwater

Boyer, Edmond

311

TEACHING SCIENCE | VOLUME 51 NO 1 | pp 28-31 Introduction to relativity: a multi-level, multi-media resource.  

E-print Network

1 TEACHING SCIENCE | VOLUME 51 NO 1 | pp 28-31 Introduction to relativity: a multi-level, multi Relativity, which poses conceptual problems and the difficulty that few of its effects may be directly of the main aspects of special relativity, on the other hand, require only a modest background of other

New South Wales, University of

312

Linear programming model with Unipolar City for different levels allocation of productivity of science and technology based on the perfect mechanism  

Microsoft Academic Search

It is a typical economic rule that productivity of science and technology is allocated on different levels by the effect of technology elements, and the flow of scientific and technological is one of hot problems in academic circles. Based on the perfect mechanism, the paper establishes a linear programming model of effect of technology elements flow, under the restrict conditions

Hongxing Shi; Sifeng Liu; Zhigeng Fang; Aiqing Ruan

2008-01-01

313

Effects of discipline-based art education and interdisciplinary art education on artistic development and production, higher-level thinking, and attitudes toward science and social studies  

Microsoft Academic Search

This research was conducted to assess the effectiveness of discipline-based art education (DBAE) and interdisciplinary art (IA) teaching methods on art production, higher level thinking skills, and attitudes toward science and social studies. Two of the sixth-grade classes at a rural West Tennessee school were taught using the DBAE method and two were given the IA treatment. The evaluation of

Lisa Lessenberry Smith

1999-01-01

314

A Model for Beliefs, Tool Acceptance Levels and Web Pedagogical Content Knowledge of Science and Technology Preservice Teachers towards Web Based Instruction  

ERIC Educational Resources Information Center

One of the applications applied most nowadays is web based instruction (WBI). Although there are many studies on WBI, no study which researched the relations between beliefs for WBI, WBI tools acceptance levels and web pedagogical content knowledge (WPCK) of science and technology pre-service teachers was found among these studies. The aim of this…

Horzum, Mehmet Baris; Canan Gungoren, Ozlem

2012-01-01

315

Emergency peripartum hysterectomy in a tertiary hospital in southern Nigeria  

PubMed Central

Introduction Emergency peripartum hysterectomy, a maker of severe maternal morbidity and near miss mortality is an inevitable surgical intervention to save a woman's life when uncontrollable obstetric haemorrhage complicates delivery. This study was conducted in order to determine the incidence, types, indications and maternal complications of emergency peripartum hysterectomy at the University of Uyo Teaching Hospital, Uyo, Nigeria. Methods The case records of all women who underwent emergency peripartum hysterectomy between 1st January 2004 and 31st December 2011 were studied. Results There were 12,298 deliveries during the study period and 28 emergency peripartum hysterectomies were performed resulting in a rate of 0.2% or 1 in 439 deliveries. The modal age group of the patients was 26-30 years (35.7%), majority were of low parity (64.4%), while 17.9% attained tertiary level education. Half of the patients (50.0%) were unbooked while 14.3% were antenatal clinic defaulters. Extensive uterine rupture (67.8%) was the most common indication for emergency hysterectomy distantly followed by uterine atony with uncontrollable haemorrhage (17.9%). Subtotal abdominal hysterectomy was performed in 92.8% of the cases. The case fatality rate was 14.3% while the perinatal mortality rate was 64.3%. Conclusion Emergency peripartum hysterectomy is not uncommonly performed in our centre and extensive uterine rupture from prolonged obstructed labour is the most common indication. In addition, it is associated with significant maternal and perinatal mortality. There is need to enlighten women in our communities on the benefits of ANC and hospital delivery as well as the dangers of delivering without skilled attendance. Government should consider enacting legislation to discourage people or organisations who operate unlicensed maternity homes in our environment. PMID:24147186

Abasiattai, Aniekan Monday; Umoiyoho, Aniefiok Jackson; Utuk, Ntiense Maurice; Inyang-Etoh, Emmanuel Columba; Asuquo, Otobong Peter

2013-01-01

316

Completeness of pelagic sequences at the Cretaceous/Tertiary boundary  

SciTech Connect

Dingus has suggested that several Cretaceous-tertiary pelagic sections are sufficiently incomplete that a catastrophic extinction event spanning less than 100 years cannot be resolved. The authors show that his estimates of completeness are based in part on spurious data and therefore should be rejected. Completeness is defined by Dingus, over specific time intervals, as the ratio of long term to short term sedimentation rates. Long term rates are determined by the magneto-stratigraphic chrons of the section studied. Short term rates are determined by extrapolations of Sadler's sediment accumulation rate plot for calcareous oozes. The authors present evidence that shows the high short term sedimentation rates in Sadler's plots are an artifact of measurement precision and the use of fixed sampling intervals. To demonstrate the artificial character of the short term sedimentation rate resulting from measurement precision, a series of plots are generated. These plots are constructed using constant sedimentation rates at defined levels of precision and with standard deviations assigned to simulate measurement error. Fixed sampling intervals can also result in sedimentation accumulation rate plots exhibiting artificially high short term sedimentation. Examples from data used to construct Sadler's sediment accumulation plots show that fixed sampling intervals result in scattering of datum points toward higher accumulation rates. This is especially evident in the shorter time intervals where radiometric errors comprise a greater percentage of time measured. Although completeness estimates cannot be determined for short time intervals using Sadler's plot of calcareous oozes, estimates for intervals greater than 10,000 years may be possible. Extrapolations of data from intervals greater than 10,000 years to shorter time intervals suggest that many pelagic sections are complete enough to resolve catastrophic events.

Anders, M.H.; Krueger, S.W.

1985-01-01

317

The global Cretaceous-Tertiary fire: Biomass or fossil carbon  

NASA Technical Reports Server (NTRS)

The global soot layer at the K-T boundary indicates a major fire triggered by meteorite impact. However, it is not clear whether the principal fuel was biomass or fossil carbon. Forests are favored by delta value of C-13, which is close to the average for trees, but the total amount of elemental C is approximately 10 percent of the present living carbon, and thus requires very efficient conversion to soot. The PAH was analyzed at Woodside Creek, in the hope of finding a diagnostic molecular marker. A promising candidate is 1-methyl-7-isopropyl phenanthrene (retene,), which is probably derived by low temperature degradation of abietic acid. Unlike other PAH that form by pyrosynthesis at higher temperatures, retene has retained the characteristic side chains of its parent molecule. A total of 11 PAH compounds were identified in the boundary clay. Retene is present in substantial abundance. The identification was confirmed by analysis of a retene standard. Retene is characteristic of the combustion of resinous higher plants. Its formation depends on both temperature and oxygen access, and is apparently highest in oxygen-poor fires. Such fires would also produce soot more efficiently which may explain the high soot abundance. The relatively high level of coronene is not typical of a wood combustion source, however, though it can be produced during high temperature pyrolysis of methane, and presumably other H, C-containing materials. This would require large, hot, low O2 zones, which may occur only in very large fires. The presence of retene indicates that biomass was a significant fuel source for the soot at the Cretaceous-Tertiary boundary. The total amount of elemental C produced requires a greater than 3 percent soot yield, which is higher than typically observed for wildfires. However, retene and presumably coronene imply limited access of O2 and hence high soot yield.

Gilmour, Iain; Guenther, Frank

1988-01-01

318

Mainstreaming of Climate Change into the Ghanaian Tertiary Educational System  

NASA Astrophysics Data System (ADS)

The impact of Climate Change has a far-reaching implication for economies and people living in the fragile Regions of Africa analysts project that by 2020, between 75 million and 250 million people will be exposed various forms of Climate Change Stresses. Education as a key strategy identified under Agenda 21 has been incorporated into the efforts of various educational institutions as a means of mitigating climate change and enhancing sustainability. Climate Change education offers many opportunities and benefits for educators, researchers, learners, and for wider society, but there are also many challenges, which can hinder the successful mainstreaming of climate change education. The study aims at understanding barriers for Climate Change Education in selected tertiary institutions in Ghana. The study was conducted among Geoscience Departments of the 7 main public universities of Ghana. The transcript analysis identified issues that hinders the mainstreaming of Climate Change, these includes existing levels of knowledge and understanding of the concept of climate change, appreciating the threshold concepts, ineffective teaching of Climate Change and some Departments are slow in embracing Climate Change as a discipline. Hence to develop strategies to mainstream climate change education it is important to recognise that increasing the efficiency and delivery of Climate Change education requires greater attention and coordination of activities and updating the educators knowledge and skill's. Various Ministries should be challenged to develop and integrate climate change into education policies. In the design of curriculum, there is a need to integrate Climate Change Education into curricula without compromising already overstretched programmes of study. There is a need to encourage and enhance innovative teaching approaches such as Problem-based learning (PBL) is an approach that challenges students to learn through engagement in a real problem. Institutions and Educator should be encouraged to undertake co-curricula activities and finding ways to practicalize Climate Change education.

Nyarko, B. K.

2013-12-01

319

An atmospheric pCO2 reconstruction across the Cretaceous-Tertiary boundary from leaf megafossils  

PubMed Central

The end-Cretaceous mass extinctions, 65 million years ago, profoundly influenced the course of biotic evolution. These extinctions coincided with a major extraterrestrial impact event and massive volcanism in India. Determining the relative importance of each event as a driver of environmental and biotic change across the Cretaceous-Tertiary boundary (KTB) crucially depends on constraining the mass of CO2 injected into the atmospheric carbon reservoir. Using the inverse relationship between atmospheric CO2 and the stomatal index of land plant leaves, we reconstruct Late Cretaceous-Early Tertiary atmospheric CO2 concentration (pCO2) levels with special emphasis on providing a pCO2 estimate directly above the KTB. Our record shows stable Late Cretaceous/Early Tertiary background pCO2 levels of 350–500 ppm by volume, but with a marked increase to at least 2,300 ppm by volume within 10,000 years of the KTB. Numerical simulations with a global biogeochemical carbon cycle model indicate that CO2 outgassing during the eruption of the Deccan Trap basalts fails to fully account for the inferred pCO2 increase. Instead, we calculate that the postboundary pCO2 rise is most consistent with the instantaneous transfer of ?4,600 Gt C from the lithic to the atmospheric reservoir by a large extraterrestrial bolide impact. A resultant climatic forcing of +12 W?m?2 would have been sufficient to warm the Earth's surface by ?7.5°C, in the absence of counter forcing by sulfate aerosols. This finding reinforces previous evidence for major climatic warming after the KTB impact and implies that severe and abrupt global warming during the earliest Paleocene was an important factor in biotic extinction at the KTB. PMID:12060729

Beerling, D. J.; Lomax, B. H.; Royer, D. L.; Upchurch, G. R.; Kump, L. R.

2002-01-01

320

The tertiary gustatory center in sunfishes is not nucleus glomerulosus.  

PubMed

Injection of horseradish peroxidase into the secondary gustatory nucleus of the green sunfish, Lepomis cyanellus, resulted in retrogradely filled neurons bilaterally in the viscerosensory column of the brainstem and in anterograde transport revealing ipsilateral terminal fields in the preglomerular tertiary gustatory nucleus, the nucleus of the torus lateralis and the central and periventricular nucleus of the inferior lobe. Thus, the glomerular nucleus of percomorph teleosts is not a tertiary gustatory center. It is proposed that the term 'nucleus glomerulosus' be reserved for the nucleus involved with vision and that the preglomerular subdivision involved in gustation be termed 'nucleus gustatorius tertius'. PMID:3362429

Wullimann, M F

1988-03-21

321

A SUMMARY OF COAL IN THE FORT UNION FORMATION (TERTIARY), BIGHORN BASIN,  

E-print Network

Chapter SB A SUMMARY OF COAL IN THE FORT UNION FORMATION (TERTIARY), BIGHORN BASIN, WYOMING assessment of selected Tertiary coal beds and zones in the Northern RockyMountains and Great Plains region, U...........................................................................................................................SB-1 Coal Production History

322

40 CFR 721.10090 - Tertiary amine salt of glycol succinate (generic).  

Code of Federal Regulations, 2010 CFR

40 Protection of Environment 30... false Tertiary amine salt of glycol succinate...Section 721.10090 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED...10090 Tertiary amine salt of glycol...

2010-07-01

323

What Third-Grade Students of Differing Ability Levels Learn about Nature of Science after a Year of Instruction  

ERIC Educational Resources Information Center

This study explored third-grade elementary students' conceptions of nature of science (NOS) over the course of an entire school year as they participated in explicit-reflective science instruction. The "Views of" NOS-D (VNOS-D) was administered pre instruction, during mid-school year, and at the end of the school year to track…

Akerson, Valarie; Nargund-Joshi, Vanashri; Weiland, Ingrid; Pongsanon, Khemmawadee; Avsar, Banu

2014-01-01

324

Early Childhood Teachers' Views of Nature of Science: The Influence of Intellectual Levels, Cultural Values, and Explicit Reflective Teaching  

ERIC Educational Resources Information Center

This study tracked the influence of explicit reflective instructional methods on cultural values, ethical and intellectual development, and the relationship of these with preservice teachers' views of nature of science (NOS). The researchers used the Views of Nature of Science Form B (VNOS B) to describe NOS views, the Learning Context…

Akerson, Valarie L.; Buzzelli, Cary A.; Donnelly, Lisa A.

2008-01-01

325

The Relationship Between the Retention Level of Orally and Visually Presented Science Material to Selected Fifth Grade Students.  

ERIC Educational Resources Information Center

Two groups of fifth-grade pupils were equated on reading ability, I.Q., science ability, hearing, and eyesight. The groups selected were well above average in I.Q. and reading ability. Four selections, each of 400 to 500 words, from standard fifth-grade elementary science texts were presented by allowing students to read them or by reading them to…

Friedman, Robert M.

326

The validity of the Computer Science and Applications activity monitor for use in coronary artery disease patients during level walking.  

PubMed

The principal aim of the present study was to examine the validity of the Computer Science and Applications (CSA) activity monitor during level walking in coronary artery disease (CAD) patients. As a secondary aim, we evaluated the usefulness of two previously published energy expenditure (EE) prediction equations. Thirty-four subjects (29 men and five women), all with diagnosed CAD, volunteered to participate. Oxygen uptake (VO2) was measured by indirect calorimetry during walking on a motorized treadmill at three different speeds (3.2, 4.8 and 6.4 km h-1). Physical activity was measured simultaneously using the CSA activity monitor, secured directly to the skin on the lower back (i.e. lumbar vertebrae 4-5) with an elastic belt. The mean (+/- SD) activity counts were 1208 +/- 429, 3258 +/- 753 and 5351 +/- 876 counts min-1, at the three speeds, respectively (P < 0.001). Activity counts were significantly correlated to speed (r = 0.92; P < 0.001), VO2 (ml kg-1 min-1; r = 0.87; P < 0.001) and EE (kcal min-1; r = 0.85, P < 0.001). A stepwise linear regression analysis showed that activity counts and body weight together explained 75% of the variation in EE. Predicted EE from previously published equations differed significantly when used in this group of CAD patients. In conclusion, the CSA activity monitor is a valid instrument for assessing the intensity of physical activity during treadmill walking in CAD patients. Energy expenditure can be predicted from body weight and activity counts. PMID:12402446

Ekelund, Ulf; Tingström, Pia; Kamwendo, Kitty; Krantz, Monica; Nylander, Eva; Sjöström, Michael; Bergdahl, Björn

2002-07-01

327

West Hackberry Tertiary Project. Technical progress report, October 1December 31, 1996  

Microsoft Academic Search

The West Hackberry Tertiary Project is a field test of the concept that air injection can be combined with the Double Displacement Process to produce a tertiary recovery process that is both low cost and economic at current oil prices. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary

T. Gillham; B. Cerveny; E. Turek

1997-01-01

328

Evidence of Carpinus (Betulaceae) in the Late Tertiary (Pliocene) of Alabama  

Microsoft Academic Search

Carpinus is a common and widespread element of the modern North American forest vegetation, but its scant fossil record on the continent is perplexing, especially considering the abundant and relatively continuous record of the genus in the Tertiary of Europe and Asia. Despite earlier claims of Tertiary Carpinus remains, recent reviews have indicated that a definitive post-Eocene Tertiary record of

DEBRA Z. STULTS; BRIAN J. AXSMITH; DOUGLAS HAYWICK

2002-01-01

329

A SUMMARY OF TERTIARY COAL RESOURCES OF THE RATON BASIN, COLORADO AND NEW MEXICO  

E-print Network

Chapter SR A SUMMARY OF TERTIARY COAL RESOURCES OF THE RATON BASIN, COLORADO AND NEW MEXICO By R of selected Tertiary coal beds and zones in the Northern RockyMountains and Great Plains region, U Resource assessment of selected Tertiary coal beds and zones in the Northern Rocky Mountains and Great

330

A New Synthesis of Tertiary Alkyl N-Arylcarbamates from Isocyanates.  

ERIC Educational Resources Information Center

The method involves the dissolution of a small piece of metallic lithium in a small quantity of tertiary alcohol followed by addition to a mixture of the isocyanate and the tertiary alcohol in ether. This should be useful in organic chemistry laboratory courses for the identification of tertiary alcohols. (Author/BB)

Bailey, William J.; Griffith, James R.

1978-01-01

331

An investigation of communication patterns and strategies between international teaching assistants and undergraduate students in university-level science labs  

NASA Astrophysics Data System (ADS)

This research project investigates communication between international teaching assistants and their undergraduate students in university-level chemistry labs. During the fall semester, introductory-level chemistry lab sections of three experienced non-native speaking teaching assistants and their undergraduate students were observed. Digital audio and video recordings documented fifteen hours of lab communication, focusing on the activities and interactions in the first hour of the chemistry laboratory sessions. In follow-up one-on-one semi-structured interviews, the participants (undergraduates, teaching assistants, and faculty member) reviewed interactions and responded to a 10-item, 7-point Likert-scaled interview. Interactions were classified into success categories based on participants' opinions. Quantitative and qualitative data from the observations and interviews guided the analysis of the laboratory interactions, which examined patterns of conversational listening. Analysis of laboratory communication reveals that undergraduates initiated nearly two-thirds of laboratory communication, with three-fourths of interactions less than 30 seconds in duration. Issues of gender and topics of interaction activity were also explored. Interview data identified that successful undergraduate-teaching assistant communication in interactive science labs depends on teaching assistant listening comprehension skills to interpret and respond successfully to undergraduate questions. Successful communication in the chemistry lab depended on the coordination of visual and verbal sources of information. Teaching assistant responses that included explanations and elaborations were also seen as positive features in the communicative exchanges. Interaction analysis focusing on the listening comprehension demands placed on international teaching assistants revealed that undergraduate-initiated questions often employ deixis (exophoric reference), requiring teaching assistants to demonstrate skills at disambiguating undergraduate discourse. Interaction analysis reinforced that successful undergraduate-teaching assistant communication depends on the coordination of verbal and visual channels of communication, with the physical objects of the chemistry lab environment playing a pivotal role in expressing information and in mutual understanding. These results have implications for the evaluation of English proficiency and the preparation of non-native speaking teaching assistants by pointing out that teaching assistant listening comprehension skills and the use of contextual artifacts contribute to successful communication and are areas that, to date, have been underrepresented in the research literature on international teaching assistant communication.

Gourlay, Barbara Elas

332

The STC Course as an Alternative Preparation for Tertiary Education.  

ERIC Educational Resources Information Center

The Schools Year 12 and Tertiary Entrance Certificate (STC) course, an alternative to the traditional pathway chosen by Australian secondary school students wishing to proceed to higher education, is described. Results of a survey comparing students taking the traditional pathway and students taking the STC course are discussed. (MLW)

Batten, Margaret

1989-01-01

333

Mining tertiary structural motifs for assessment of designability.  

PubMed

The observation of a limited secondary-structural alphabet in native proteins, with significant sequence preferences, has profoundly influenced the fields of protein design and structure prediction (Simons, Kooperberg, Huang, & Baker, 1997; Verschueren et al., 2011). In the era of structural genomics, as the size of the structural dataset continues to grow rapidly, it is becoming possible to extend this analysis to tertiary structural motifs and their sequences. For a hypothetical tertiary motif, the rate of its utilization in natural proteins may be used to assess its designability-the ease with which the motif can be realized with natural amino acids. This requires a structural similarity search methodology, which rather than looking for global topological agreement (more appropriate for categorization of full proteins or domains), identifies detailed geometric matches. In this chapter, we introduce such a method, called MaDCaT, and demonstrate its use by assessing the designability landscapes of two tertiary structural motifs. We also show that such analysis can establish structure/sequence links by providing the sequence constraints necessary to encode designable motifs. As logical extension of their secondary-structure counterparts, tertiary structural preferences will likely prove extremely useful in de novo protein design and structure prediction. PMID:23422424

Zhang, Jian; Grigoryan, Gevorg

2013-01-01

334

Pedagogical Practices of Reflection in Tertiary Dance Education  

ERIC Educational Resources Information Center

The three different perspectives on reflection in education are embedded in the philosophical traditions of pragmatism, critical social theory and Kant. We aimed to describe the pedagogical practices of reflection, and to develop a descriptive model of the practices of reflection in tertiary dance education which can be used by dance educators to…

Leijen, Ali; Lam, Ineke; Simons, P. Robert-Jan; Wildschut, Liesbeth

2008-01-01

335

ORIGINAL PAPER Light-mimicking cockroaches indicate Tertiary  

E-print Network

ORIGINAL PAPER Light-mimicking cockroaches indicate Tertiary origin of recent terrestrial . Cockroaches Introduction Bioluminescence in marine habitats is widespread, and is also present in a freshwater webs and (3) virtually unstudied, the recently dis- covered adult cockroaches of the genus

Papaj, Daniel

336

Referral Patterns of Uveitis in a Tertiary Eye Care Center  

Microsoft Academic Search

Objective: To analyze the referral patterns and diag- nosis of uveitis during the past decade in a large tertiary eye center. Design: The records of 1237 patients with uveitis referred to the Immunology Service of the Massachusetts Eye and Ear Infirmary from 1982 to 1992 were classified and ana- lyzed. Data regarding sex, race, nationality, referral site, ages at presentation

Alejandro Rodriguez; Margarita Calonge; Miguel Pedroza-Seres; Yonca A. Akova; Elisabeth M. Messmer; Donald J. D'Amico; C. Stephen Foster

2011-01-01

337

Tertiary architecture of the Oceanobacillus iheyensis group II intron  

SciTech Connect

Group II introns are large ribozymes that act as self-splicing and retrotransposable RNA molecules. They are of great interest because of their potential evolutionary relationship to the eukaryotic spliceosome, their continued influence on the organization of many genomes in bacteria and eukaryotes, and their potential utility as tools for gene therapy and biotechnology. One of the most interesting features of group II introns is their relative lack of nucleobase conservation and covariation, which has long suggested that group II intron structures are stabilized by numerous unusual tertiary interactions and backbone-mediated contacts. Here, we provide a detailed description of the tertiary interaction networks within the Oceanobacillus iheyensis group IIC intron, for which a crystal structure was recently solved to 3.1 {angstrom} resolution. The structure can be described as a set of several intricately constructed tertiary interaction nodes, each of which contains a core of extended stacking networks and elaborate motifs. Many of these nodes are surrounded by a web of ribose zippers, which appear to further stabilize local structure. As predicted from biochemical and genetic studies, the group II intron provides a wealth of new information on strategies for RNA folding and tertiary structural organization.

Toor, Navtej; Keating, Kevin S.; Fedorova, Olga; Rajashankar, Kanagalaghatta; Wang, Jimin; Pyle, Anna Marie (Yale); (Cornell)

2010-05-03

338

Teaching the Attributes of Venture Teamwork in Tertiary Entrepreneurship Programmes  

ERIC Educational Resources Information Center

Purpose: The paper seeks to demonstrate the characteristics of group work that are required to teach the attributes of real world venture teamwork in tertiary entrepreneurship programmes. Design/methodology/approach: One-tailed Spearman correlation analysis is used to assess the associations between students' grades in four group assessment tasks…

Kotey, Bernice

2007-01-01

339

An extraterrestrial event at the Cretaceous-Tertiary boundary  

Microsoft Academic Search

Closely spaced samples from an uninterrupted calcareous pelagic sequence across the Cretaceous-Tertiary boundary reveal that the extinction of planktonic Foraminifera and nannofossils was abrupt without any previous warning in the sedimentary record, and that the moment of extinction was coupled with anomalous trace element enrichments, especially of iridium and osmium. The rarity of these two elements in the crust of

J. Smit; J. Hertogen

1980-01-01

340

An exploration of gender differences in tertiary mathematics  

Microsoft Academic Search

Data from 400 students in a tertiary mathematics course were analysed to explore gender differences on a number of variables associated with learning mathematics. It was concluded that while differences did occur on variables associated with confidence, self-concept, test anxiety and quantitative ability indicating a detrimental effect for women, compensating behaviour by women, including increased assignment work and tutorial attendance,

Jane M. Watson

1989-01-01

341

Assessing Intonation Skills in a Tertiary Music Training Programme  

Microsoft Academic Search

Abstract Buttsworth, Fogarty, and Rorke (1993) reported the construction of a battery of tonal tests designed to assess intonation abilities. A subset of the tests in the battery predicted 36% of final scores in an aural training subject in a tertiary music course. In the current study, the original battery of fourteen tests was reduced to six tests and administered

Gerard J. Fogarty; Louise M. Buttsworth; Phillip J. Gearing

1996-01-01

342

Competency Discourses: An Analysis of Secondary and Tertiary Assessments  

ERIC Educational Resources Information Center

Analysis of a sample of assessment tasks used in New Zealand first-year clinical and final-year secondary school Biology and Chemistry National Certificate of Educational Achievement summative assessments was conducted to assess whether similarities and differences existed in secondary and tertiary competency discourses. Findings suggested…

McNaughton, Susan M.

2013-01-01

343

Autonomous Language Learning: Hong Kong Tertiary Students' Attitudes and Behaviors.  

ERIC Educational Resources Information Center

Studied students' views of their responsibilities and decision-making abilities in learning English, motivation, and learning activities of 508 tertiary students learning English at Hong Kong Polytechnic University, Hong Kong. Presents the student profile generated from the study and discusses the pedagogical implications. (SLD)

Chan, Victoria; Spratt, Mary; Humphreys, Gillian

2002-01-01

344

Identification of tertiary sulfonamides as RORc inverse agonists.  

PubMed

Screening a nuclear receptor compound subset in a RORc biochemical binding assay revealed a benzylic tertiary sulfonamide hit. Herein, we describe the identification of compounds with improved RORc biochemical inverse agonist activity and cellular potencies. These improved compounds also possessed appreciable selectivity for RORc over other nuclear receptors. PMID:24685544

Fauber, Benjamin P; René, Olivier; Burton, Brenda; Everett, Christine; Gobbi, Alberto; Hawkins, Julie; Johnson, Adam R; Liimatta, Marya; Lockey, Peter; Norman, Maxine; Wong, Harvey

2014-05-01

345

Expenditure per student, tertiary (% of GDP per capita)  

NSDL National Science Digital Library

Data set and map pertaining to expenditure per tertiary school student for all countries as a percentage of their GDP per capita. The World Bank specifies expenditure per student as a World Development Indicator (WDI) -- the statistical benchmark that helps measure the progress of development.

Bank, World

346

Performance Measurements of Tertiary Storage Devices Theodore Johnson  

E-print Network

storage system that uses drives that accept removable media, a storage rack for the removable media, tertiary storage (i.e., removable media in a robotic storage library) is becoming in- creasingly popular libraries and archives. The database re- search community has responded with investi- gations into systems

Miller, Ethan L.

347

The Place of VET in the Tertiary Sector. Conference Paper  

ERIC Educational Resources Information Center

The utilitarian spirit of Australian education has meant that since the nineteenth century the notion of tertiary education has embraced all post-school learning, delivered in sandstone universities or working men's institutes or on the job. This is not the definition the peak bodies TAFE (Technical and Further Education) Directors Australia (TDA)…

Beddie, Francesca

2010-01-01

348

Reflections on the Tertiary Education Sector in Australia. Conference Paper  

ERIC Educational Resources Information Center

The split between higher education and vocational education and training (VET) in Australia is not clean. This paper discusses a number of aspects of this tertiary education sector: the Australian Qualifications Framework (AQF), which describes the qualifications offered by the three education sectors: schools, higher education and VET; student…

Karmel, Tom

2009-01-01

349

Annual Technical Progress Report - West Hackberry Tertiary Project  

SciTech Connect

The West Hackberry Tertiary Project is a field test of the concept that air injection can be combined with the Double Displacement Process to produce a tertiary recovery process that is both low cost and economic at current oil prices. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil by gravity drainage. In reservoirs with pronounced bed dip such as those found in West Hackberry and other Gulf Coast salt dome fields, reservoir performance has shown that gravity drainage recoveries average 80% to 90% of the original oil in place while waterdrive recoveries average 50% to 60% of the original oil in place. The target for tertiary oil recovery in the Double Displacement Process is the incremental oil between the 50% to 60% waterdrive recoveries and the 80% to 90% gravity drainage recoveries. Air injection on the west flank began in November of 1994. Although west flank air injection has increased reservoir pressure by 500 pounds per square inch (psi), production response has not yet occurred. The gas cap on the west flank has not expanded sufficiently to push the oil rim down to the nearest downstructure well.

Allen Fornea; Bruce Cerveny; Travis H. Gillham

1997-09-30

350

The tertiary gustatory center in sunfishes is not nucleus glomerulosus  

Microsoft Academic Search

Injection of horseradish peroxidase into the secondary gustatory nucleus of the green sunfish, Lepomis ~Tanellus, resulted in retrogradely filled neurons bilaterally in the viscerosensory column of the brainstem and in anterograde transport revealing ipsilateral terminal fields in the preglomerular tertiary gustatory nucleus, the nucleus of the torus lateralis and the central and periventricular nucleus of the inferior lobe. Thus, the

Mario F. Wullimann

1988-01-01

351

RNA Tertiary Structure Eric Westhof and Pascal Auffinger  

E-print Network

standard nucleic acid bases; the pyrimidines uracil and cytosine, and the purines guanine and adenine phosphorylated sugar to which is attached one of the four standard nucleic acid bases; the pyrimidines uracil, Strasbourg, France 1 Introduction 1 2 Chemical Structure of RNA 1 3 Definitions of Secondary and Tertiary

Westhof, Eric

352

Rekindling Warm Embers: Teaching Aboriginal Languages in the Tertiary Sector  

ERIC Educational Resources Information Center

This paper reviews the teaching of Aboriginal languages in the tertiary sector of Australia, looking at the stronger languages taught in the university sector versus those languages under revival that tend to be taught in the TAFE sector. The paper summarises the status of courses offered state by state, and sets the scene with some historical…

Gale, Mary-Anne

2011-01-01

353

Stereospecific couplings of secondary and tertiary boronic esters.  

PubMed

This Minireview highlights advances in the Suzuki-Miyaura cross-coupling of secondary boron reagents for the creation of C?C bonds with control of stereochemistry. It also includes non-transition-metal coupling of secondary and tertiary boronic esters to electron-rich aromatics. PMID:25414056

Leonori, Daniele; Aggarwal, Varinder K

2015-01-19

354

Group Assessments: Dilemmas Facing Lecturers in Multicultural Tertiary Classrooms  

ERIC Educational Resources Information Center

"Group is good, and group is good for curing all social ills" was the cynical observation of one of the lecturers in this study. Her comment reflects the uneasiness of lecturers at tertiary institutions with the notion that the educational advantages of group assessments far outweigh the disadvantages, and that such an approach promotes the…

Strauss, Pat; U, Alice

2007-01-01

355

Science Instructors' Views of Science and Nature of Science  

ERIC Educational Resources Information Center

This qualitative study examined how college science faculty who teach introductory level undergraduate science courses including the fields of chemistry, biology, physics, and earth science, understand and define science and nature of science (NOS). Participants were seventeen science instructors from five different institutions in the…

Karakas, Mehmet

2011-01-01

356

Why Do Staff of Joint-Use Libraries Sometimes Fail to Integrate? Investigating Cultures and Ethics in a Public-Tertiary Joint-Use Library  

ERIC Educational Resources Information Center

Joint-use libraries have identified staff integration as a problem. Using focus groups, this project investigated the culture, professional ethics, and attitudes of staff in a public-tertiary joint-use library in Auckland, New Zealand. Findings show some difference in organizational cultures, but more variation at the lower level of roles and…

Calvert, Philip James

2010-01-01

357

The effects of the level of inquiry of situated secondary science laboratory activities on students' understanding of concepts and the nature of science, ability to use process skills and attitudes toward problem solving  

NASA Astrophysics Data System (ADS)

Although there has been over thirty years of studies on the effects of inquiry-based science instruction on students' understanding of concepts and the nature of science, ability to use process skills, and attitudes toward problem solving and subsequent meta-analyses of these studies, little is conclusive because of the inability of researchers to adequately describe the various levels of inquiry-based science instruction being utilized. In many of these past studies inquiry-based science instruction was vaguely defined. Past descriptions of inquiry have mainly focused on the teacher vs. student responsibility in the parts of a laboratory activity (Herron 1971, Pella, 1961, and Schwab, 1962) and although others have since focused on other various aspects (Luft, 1999; Priestley, Priestley, Sutman, Schumuckler, Hilosky, & White 1998), none have been complete in scope to describe the classroom interactions between teacher and student, before, during and after manipulation of laboratory materials and to clearly define the various levels of inquiry-based science instruction occurring in a classroom. Utilizing some of these previous theoretical frameworks, this study created the Situated Laboratory Activity Instrument (SLAI) that clearly defines various levels of inquiry based upon specific categories of teacher-student behaviors. The term, situated laboratory activities, more clearly represents the time before, during and after the actual manipulation of material. Validity and reliability were established for the SLAI. The instrument was derived from both historical and current instruments for looking at inquiry. The data for the creation and revision of this instrument were collected through initial reliability measures and observing the situated laboratory activities in four secondary physics classrooms during the study. The SLAI was utilized in a preliminary study in a public high school of the effects of various levels of inquiry teaching on students' understanding of concepts and the nature of science, ability to use process skills, and attitudes toward problem solving. Engaging in this study utilizing the SLAI uncovered some limitations and some modifications were made to the instrument. In addition, a theoretical framework between inquiry-based classroom behavior and the four factors of science literacy was created. Although this study demonstrated limited effects of various levels of inquiry due to small sample size and lack of differentiation between teachers, it serves as a model for more comprehensive studies. (Abstract shortened by UMI.)

Dana, Lisa Ann

358

Population-level assessments should be emphasized over community/ecosystem-level assessments. Environmental Sciences Division Publication No. 1535. [Concerning the impact of power plants on fish populations  

SciTech Connect

Arguments are presented in favor of emphasizing population-level assessments over community/ecosystem-level assessments. The two approaches are compared on each of four issues: (1) the nature of entrainment/impingement impacts; (2) the ability to forecast reliably for a single fish population as contrasted to the ability to forecast for an aquatic community or ecosystem; (3) practical considerations involving money, manpower, time, and the need to make decisions; and (4) the nature of societal and economic concerns. The conclusion on each of these four issues is that population-level assessments provide the optimal approach for evaluating the effects of entrainment and impingement mortality.

Van Winkle, W.

1980-01-01

359

The relationship of attitudes toward science, cognitive style, and self-concept to achievement in chemistry at the secondary school level  

NASA Astrophysics Data System (ADS)

There is currently a crisis in science education in the United States. This statement is based on the National Science Foundation's report stating that the nation's students, on average, still rank near the bottom in science and math achievement internationally. This crisis is the background of the problem for this study. This investigation studied learner variables that were thought to play a role in teaching chemistry at the secondary school level, and related them to achievement in the chemistry classroom. Among these, cognitive style (field dependence/independence), attitudes toward science, and self-concept had been given considerable attention by researchers in recent years. These variables were related to different competencies that could be used to measure the various types of achievement in the chemistry classroom at the secondary school level. These different competencies were called academic, laboratory, and problem solving achievement. Each of these chemistry achievement components may be related to a different set of learner variables, and the main purpose of this study was to investigate the nature of these relationships. Three instruments to determine attitudes toward science, cognitive style, and self-concept were used for data collection. Teacher grades were used to determine chemistry achievement for each student. Research questions were analyzed using Pearson Product Moment Correlation Coefficients and t-tests. Results indicated that field independence was significantly correlated with problem solving, academic, and laboratory achievement. Educational researchers should therefore investigate how to teach students to be more field independent so they can achieve at higher levels in chemistry. It was also true that better attitudes toward the social benefits and problems that accompany scientific progress were significantly correlated with higher achievement on all three academic measures in chemistry. This suggests that educational researchers should investigate how students might be guided to manifest more favorable attitudes toward science so they will achieve at higher levels in chemistry. An overall theme that emerged from this study was that findings refuted the idea that female students believed that science was for males only and was an inappropriate and unfeminine activity. This was true because when the means of males and females were compared on the three measures of chemistry achievement, there was no statistically significant difference between them on problem solving or academic achievement. However, females were significantly better in laboratory achievement.

Kirk, Gerald Richard

360

Building an electronic book on the Internet: ``CSEP -- an interdisciplinary syllabus for teaching computational science at the graduate level``  

SciTech Connect

The Computational Science Education Project was initiated in September 1991, by the Department of Energy to develop a syllabus for teaching interdisciplinary computational science. CSEP has two major activities. The writing and maintenance of an electronic book (e-book) and educational outreach to the computational science communities through presentations at professional society meetings, journal articles, and by training educators. The interdisciplinary nature of the project is intended to contribute to national technological competitiveness by producing a body of graduates with the necessary skills to operate effectively in high performance computing environments. The educational outreach guides and supports instructors in developing computational science courses and curricula at their institutions. The CSEP e-book provides valuable teaching material around which educators have built. The outreach not only introduces new educators to CSEP, but also establishes a synergistic relationship between CSEP authors, reviewers and users.

Oliver, C.E.; Strayer, M.R. [Oak Ridge National Lab., TN (United States); Umar, V.M. [Vanderbilt Univ., Nashville, TN (United States)

1994-12-31

361

Levels of Cognitive Processes in a Non-Formal Science Education Program: Scouting's Science Merit Badges and the Revised Bloom's Taxonomy  

ERIC Educational Resources Information Center

The United States Boy Scout merit badge program provides non-formal educational experiences for boys from ages 10-17. This study analyzes the objectives of the twenty-three science related merit badges using the lens of the revised Bloom's taxonomy. Merit badges requirements serve as objectives for this program. The verbs in the requirements were…

Vick, Matthew; Garvey, Michael P.

2011-01-01

362

Mathematics -- Science Links in the Secondary School: The Use of Mathematics in the Learning of Science at the Secondary School Level. A Select Bibliography.  

ERIC Educational Resources Information Center

This bibliography lists publications for students aged 11 to 16. The documents are collected under: (1) Mathematics; (2) Mathematics and Science; (3) Mathematics and Biology; (4) Mathematics and Chemistry; (5) Mathematics and Physics; and (6) Electronic Calculators. Each section separately lists books, journal articles, and some unpublished…

Ingle, R. B.; Turner, A. D.

1982-01-01

363

Marine Science Teaching at the University Level. Report of the Unesco Workshop on University Curricula. Unesco Technical Papers in Marine Science No. 19.  

ERIC Educational Resources Information Center

A group of marine science education educators from several countries were requested to provide guidelines for the education and training of marine scientists and formulate recommended curricula in the following disciplines: marine biology (including fisheries biology), physical oceanography, and marine geology. Included in the report are: (1)…

United Nations Educational, Scientific, and Cultural Organization, Paris (France). Div. of Marine Sciences.

364

Where can we find future K-12 science and math teachers? a search by academic year, discipline, and academic performance level  

NASA Astrophysics Data System (ADS)

Responding to the increasing math and science teacher shortage in the United States, this study intended to determine which science, engineering, and math (SEM) majors during which years in their undergraduate education and from which academic performance levels are most interested in K-12 teaching. Results may aid policymakers and practitioners in making most effective use of this traditional undergraduate candidate pool when designing K-12 science and math teacher recruitment programs. A survey of SEM majors from two research-oriented, urban universities is used to assess participants' interest in K-12 teaching both compared to other career choices and in isolation. Results indicate that the more successful targets for K-12 teacher recruitment include (1) SEM undergraduates in their junior and senior years independent of SEM major, (2) SEM undergraduates with mid-academic performance levels independent of SEM major and academic year, and (3) math majors followed by natural science majors and, as least promising targets, engineering majors. Results remain independent from gender and ethnicity variables.

Moin, Laura J.; Dorfield, Jennifer K.; Schunn, Christian D.

2005-11-01

365

Lithological and hydrological characteristics of the tertiary hydrostratigraphic systems of the general separations area at the Savannah River Site  

SciTech Connect

The General Separations Area (GSA) is an approximately 15-square-mile area near the geographic center of the Savannah River Site (SRS). The SRS is located in the Upper Atlantic Coastal Plain physiographic province of South Carolina on the Aiken Plateau at an elevation of approximately 300 feet above mean sea level. The sedimentary sequence of the GSA comprises unconsolidated sediments ranging in age from Cretaceous to Holocene with isolated zones of consolidated sediments. The Tertiary sediments are composed of sand, silt, clay, and calcareous materials of varying composition. The alpha-numeric hydrostratigraphic nomenclature proposed by Aadland (1990) is used herein. The Tertiary-age lithostratigraphic sequence at the GSA is composed predominantly of terrigenous clastics interspersed with carbonate-rich clastics and limestones. The calcareous lithologies are discontinuous and divided into a lower and upper zone. 15 refs., 2 figs.

Aadland, R.K. (Westinghouse Savannah River Co., Aiken, SC (USA)); Harris, M.K.; Westbrook, T.M. (Dames and Moore, Atlanta, GA (USA))

1990-01-01

366

Describing students of the African Diaspora: Understanding micro and meso level science learning as gateways to standards based discourse  

NASA Astrophysics Data System (ADS)

In much of the educational literature, researchers make little distinction between African-American students and students of the African Diaspora who immigrated to the United States. Failing to describe these salient student differences serves to perpetuate an inaccurate view of African-American school life. In today's large cities, students of the African Diaspora are frequently learning science in settings that are devoid of the resources and tools to fully support their success. While much of the scholarship unites these disparate groups, this article details the distinctive learning culture created when students from several groups of the African Diaspora learn biology together in a Brooklyn Suspension Center. Specifically this work explains how one student, Gabriel, functions in a biology class. A self-described black-Panamanian, Gabriel had tacitly resigned to not learning science, which then, in effect, precluded him from any further associated courses of study in science, and may have excluded him from the possibility of a science related career. This ethnography follows Gabriel's science learning as he engaged in cogenerative dialogue with teachers to create aligned learning and teaching practices. During the 5 months of this research, Gabriel drew upon his unique lifeworld and the depth of his hybridized cultural identity to produce limited, but nonetheless important demonstrations of science. Coexistent with his involvement in cogenerative dialogue, Gabriel helped to construct many classroom practices that supported a dynamic learning environment which produced small yet concrete examples of standards based biology. This study supports further investigation by the science education community to consider ways that students' lifeworld experiences can serve to structure and transform the urban science classroom.

Lehner, Ed

2007-04-01

367

Critical Features of Visualizations of Transport through the Cell Membrane--an Empirical Study of Upper Secondary and Tertiary Students' Meaning-Making of a Still Image and an Animation  

ERIC Educational Resources Information Center

Images, diagrams, and other forms of visualization are playing increasingly important roles in molecular life science teaching and research, both for conveying information and as conceptual tools, transforming the way we think about the events and processes the subject covers. This study examines how upper secondary and tertiary students interpret…

Rundgren, Carl-Johan; Tibell, Lena A. E.

2010-01-01

368

A tertiary plastid gains RNA editing in its new host.  

PubMed

Dinoflagellates are known for their development of highly aberrant organelle genetic systems. Both their plastid and mitochondrial genomes are extremely reduced in gene number and rearranged into numerous unconventional genomic elements. Transcription processes are also elaborately modified including extensive RNA editing and trans-splicing. Some dinoflagellates have replaced their original plastid through serial endosymbiotic events. Karlodinium veneficum is such an example that now contains a haptophyte plastid. This tertiary plastid provides a case of a more conventional genetic system introduced into a cellular environment with a known penchant for genetic oddities. Here, we show that K. veneficum plastid transcripts undergo extensive substitutional editing. The substitution types are more diverse than those seen in most other plastids but are similar to those of dinoflagellate organelles. There is no evidence for RNA editing of plastid-encoded transcripts from extant haptophytes, suggesting that K. veneficum plastid editing developed after the uptake of the tertiary endosymbiont. PMID:23197592

Jackson, Christopher J; Gornik, Sebastian G; Waller, Ross F

2013-04-01

369

The role of palynology in paleoecological analyses of Tertiary coals  

USGS Publications Warehouse

Among the most important factors controlling the petrographic composition and facies characteristics of coal deposits are the types and relative abundances of plants that composed the peat. At present, wetland environments in which peat accumulates (mires) range from marshes and bogs to forested swamps; each is inhabited by distinctive plant communities. These plant communities are associated with varied conditions of climate, water depth, chemistry, and nutrient supply, and the floras can be indicative of these conditions. In the Tertiary Period, plant communities of mires were also highly diverse and specialized (especially as compared with those of the Carboniferous). The dominant species in some Paleocene mire floras were gymnosperms, but angiosperms became increasingly prominent through the Tertiary. The diverse angiosperm-dominated mire floras produced coals that vary significantly in facies and hence in quality. -from Author

Nichols, D.J.

1995-01-01

370

Homogeneous and Heterogeneous Tertiary Structure Ensembles of Amyloid-? Peptides  

PubMed Central

The interplay of modern molecular simulation and high-quality nuclear magnetic resonance (NMR) experiments has reached a fruitful stage for quantitative characterization of structural ensembles of disordered peptides. Amyloid-? 1–42 (A?42), the primary peptide associated with Alzheimer’s disease, and fragments such as A?21–30 are both classified as intrinsically disordered peptides (IDPs). We use a variety of NMR observables to validate de novo molecular dynamics simulations in explicit water to characterize the tertiary structure ensemble of A?42 and A?21–30 from the perspective of their classification as IDPs. Unlike the A?21–30 fragment that conforms to expectations of an IDP that is primarily extended, we find that A?42 samples conformations reflecting all possible secondary structure categories and spans the range of IDP classifications from collapsed structured states to highly extended conformations, making it an IDP with a far more heterogeneous tertiary ensemble. PMID:21797254

Ball, K. Aurelia; Phillips, Aaron H.; Nerenberg, Paul S.; Fawzi, Nicolas L.; Wemmer, David E.; Head-Gordon, Teresa

2012-01-01

371

Structural Biology for A-Level Students  

ERIC Educational Resources Information Center

The relationship between the structure and function of proteins is an important area in biochemistry. Pupils studying A-level Biology are introduced to the four levels of protein structure (primary, secondary, tertiary and quaternary) and how these can be used to describe the progressive folding of a chain of amino acid residues to a final,…

Philip, Judith

2013-01-01

372

Major wildfires at the Cretaceous-Tertiary boundary  

NASA Technical Reports Server (NTRS)

The current status of the reconstruction of major biomass fire events at the Cretaceous-Tertiary boundary is discussed. Attention is given to the sources of charcoal and soot, the identification of biomass and fossil carbon, and such ignition-related problems as delated fires, high atmospheric O2 content, ignition mechanisms, and the greenhouse-effect consequences of fire on the scale envisioned. Consequences of these factors for species extinction patterns are noted.

Anders, Edward; Wolbach, Wendy S.; Gilmour, Iain

1991-01-01

373

Tertiary proton diagnostics in future inertial confinement fusion experiments  

Microsoft Academic Search

Recently, it was proposed to use energetic (up to 31 MeV) tertiary protons produced during the final stage of inertial confinement fusion implosions to measure the fuel areal density of compressed deuterium–tritium (DT). The method is based on seeding the fuel with 3He. The reaction of 3He ions with the energetic knock-on deuterons, produced via the elastic scattering of 14.1

S. Cremer; C. P. Verdon; R. D. Petrasso

1998-01-01

374

Tertiary proton diagnostics in future inertial confinement fusion experiments  

Microsoft Academic Search

Recently, it was proposed to use energetic (up to 31 MeV) tertiary protons produced during the final stage of inertial confinement fusion implosions to measure the fuel areal density of compressed deuterium-tritium (DT). The method is based on seeding the fuel with 3He. The reaction of 3He ions with the energetic knock-on deuterons, produced via the elastic scattering of 14.1

S. Cremer; C. P. Verdon; R. D. Petrasso

1998-01-01

375

An exploration of gender differences in tertiary mathematics  

Microsoft Academic Search

Data from 400 students in a tertiary mathematics course were analysed to explore gender differences on a number of variables\\u000a associated with learning mathematics. It was concluded that while differences did occur on variables associated with confidence,\\u000a self-concept, test anxiety and quantitative ability indicating a detrimental effect for women, compensating behaviour by women,\\u000a including increased assignment work and tutorial attendance,

Jane M. Watson

1989-01-01

376

Catalytic Enantioselective Epoxidation of Tertiary Allylic- and Homoallylic Alcohols  

PubMed Central

An efficient and versatile method for the enantioselective epoxidation of both tertiary allylic- and homoallylic alcohols catalyzed by Hf(IV)-bishydroxamic acid (BHA) complexes is described. Asymmetric epoxidation, kinetic resolution, and desymmetrization have been developed demonstrating the flexible nature of the system, Hf(IV)-BHA. This is the first report in which these substrates were obtained with enantioselectivities up to 99%. PMID:23406082

Olivares-Romero, José Luis; Li, Zhi

2013-01-01

377

Secondary instability and tertiary states in rotating plane Couette flow  

E-print Network

, 2009), Itano & Generalis (2009), and in pipe flow: Faisst & Eckhardt (2003), Wang et al. (2007), Wedin & Kerswell (2004), Duguet et al. (2008), Pringle & Kerswell (2007). Exact co- herent structures have been shown to support chaotic dynamics (Gibson et... Under consideration for publication in J. Fluid Mech. 1 Secondary instability and tertiary states in rotating plane Couette flow C. A. Daly1†, Tobias M. Schneider2,3, Philipp Schlatter4 and N. Peake1 1Department of Applied Mathematics & Theoretical...

Daly, C. A.; Schneider, Tobias M.; Schlatter, Philipp; Peake, N.

2014-11-14

378

Deccan flood basalts and the Cretaceous\\/Tertiary boundary  

Microsoft Academic Search

Courtillot et al.1 have presented palaeomagnetic, palaeontological and K-Ar data for the Deccan flood basalts which suggest that > 106 km3 of basalt may have been erupted in < 1 Myr, mostly in a reversed magnetic chron. This chron is argued to be 29R, the one which contains the Cretaceous\\/Tertiary boundary. Here we aim to test the hypothesis1-5 that the

V. Courtillot; G. Féraud; H. Maluski; D. Vandamme; M. G. Moreau; J. Besse

1988-01-01

379

Tertiary Normal Faulting in the Canyon Range, Eastern Sevier Desert.  

PubMed

The contact between pre-Mesozoic and Tertiary rocks in the western Canyon Range, west-central Utah, has been interpreted as a large, low-angle normal fault that marks the breakaway zone of the hypothesized, basin-forming Sevier Desert detachment. Recent fieldwork suggests that the contact may in fact be depositional along much or all of its length. Deformational fabric in the supposed footwall likely traces to the Mesozoic Sevier orogeny rather than to Tertiary detachment faulting. Kinematic indicators at the range front are not generally consistent with low-angle normal-fault motion; instead, well-exposed high-angle faults are the dominant range-bounding structures. The Tertiary conglomerates of the western Canyon Range foothills, previously viewed as an evolving syntectonic deposit related to detachment faulting, are here reinterpreted as three distinct units that reflect different periods and tectonic settings. The pattern in these conglomerates, and in fault-offset gravity-slide deposits that mantle the western foothills, is consistent with block faulting and rotation along several generations of high-angle structures. Local seismic-reflection data lend qualitative support to this interpretation, and underscore the need to consider alternative working hypotheses for evolution of the Sevier Desert basin. PMID:10517882

Wills; Anders

1999-11-01

380

Source rock evaluation of Cretaceous and Tertiary series in Tunisia  

SciTech Connect

Tunisia represents a mature hydrocarbon province with a long exploration history. In the Sfax-Kerkennah and Gabes Gulf areas, the hydrocarbon accumulations are located in series of Cretaceous and Tertiary age. To estimate the petroleum potential of this region, an evaluation of the source rock quality of the Cretaceous and Tertiary series was undertaken. In the Sfax-Kerkennak area, most of the wells studied indicate that, in the Tertiary, Ypresian and lower Lutetian show good organic content but, taking into account the potential productivity, only the Ypresian can be considered as a potential source rock. In the Cretaceous, mainly studies in the offshore area of the Gabes Gulf, the amount of organic matter is fair and it is chiefly located in Albian and Cenomanian. The Vraconian with its quite good potential is a valuable source rock. Due to the difference in the environment of deposition for these two possible source rocks - the Ypresian with its lagoon facies being carbonate and the Vraconian shaly - variations in the type of organic matter can be noted, although both are of marine origin. The hydrocarbons generated from these source rocks reflect these variations and permit them to correlate the different crude oils found in this area with their original source beds.

Oudin, J. (TOTAL-CFP, Pessac (France))

1988-08-01

381

A study on poisoning cases in a tertiary care hospital  

PubMed Central

Acute poisoning with various substance is common everywhere. The earlier the initial resuscitations, gastric decontamination and use of specific antidotes, the better the outcome. The aim of this study was to characterize the poisoning cases admitted to the tertiary care hospital, Warangal district, Andhra Pradesh, Southern India. All cases admitted to the emergency department of the hospital between the months of January and December, 2007, were evaluated retrospectively. We reviewed data obtained from the hospital medical records and included the following factors: socio-demographic characteristics, agents and route of intake and time of admission of the poisoned patients. During the outbreak in 2007, 2,226 patients were admitted to the hospital with different poisonings; the overall case fatality rate was 8.3% (n = 186). More detailed data from 2007 reveals that two-third of the patients were 21–30 years old, 5.12% (n = 114) were male and 3.23% (n = 72) were female, who had intentionally poisoned themselves. In summary, the tertiary care hospitals of the Telangana region, Warangal, indicate that significant opportunities for reducing mortality are achieved by better medical management and further sales restrictions on the most toxic pesticides. This study highlighted the lacunae in the services of tertiary care hospitals and the need to establish a poison information center for the better management and prevention of poisoning cases. PMID:22096334

Kumar, Subash Vijaya; Venkateswarlu, B.; Sasikala, M.; Kumar, G. Vijay

2010-01-01

382

An efficient generation of a functionalized tertiary-alkyl radical for copper-catalyzed tertiary-alkylative Mizoroki-Heck type reaction.  

PubMed

?-Halocarbonyl compounds undergo ?-hydrogen elimination to give conjugated olefins in the presence of a transition-metal catalyst. However, a copper/triamine catalyst system can induce the alkylative Mizoroki–Heck reaction of styrenes with tertiary-alkyl halides possessing a withdrawing group under very mild conditions. This reaction provides an efficient synthetic methodology for tertiary-alkylated styrenes. PMID:24143934

Nishikata, Takashi; Noda, Yushi; Fujimoto, Ryo; Sakashita, Tomomi

2013-11-01

383

How is Science Learning Assessed at the Postsecondary Level? Assessment and Grading Practices in College Biology, Chemistry and Physics  

NASA Astrophysics Data System (ADS)

The role of assessment in higher education is gaining importance as accountability requirements intensify and as assessments are increasingly recognized as having potential to improve teaching and learning. During the last two decades, educators have begun implementing a wider variety of assessment types including alternative and student-centered assessment practices. However, few research studies have examined the extent that college science faculty use such practices. This large-scale descriptive study utilized a nationally representative sample of higher education faculty from the US Department of Education to examine the assessment and grading practices of college science faculty from 2 and 4-year higher education institutions. When data was disaggregated by science discipline, statistically significant differences were found among physics, chemistry and biology faculty's assessment and grading practices. Biology faculty used a larger repertoire of assessment types overall, and used assessments that have potential to enhance the learning process more than chemistry and physics faculty. Physics and chemistry faculty graded on a curve more often and used competency-grading practices less often than biology faculty. Assessment practices that could be considered formative with potential to promote student learning appear to be underutilized by all science faculty.

Goubeaud, Karleen

2010-06-01

384

An Investigation of Item Bias in Science and Technology Subtests and Mathematic Subtests in Level Determination Exam (LDE)  

ERIC Educational Resources Information Center

The aim of this study is to determine the items in Science and Technology and Mathematics subtests of 6th, 7th, and 8th grades in the 2009 LDE, which was performed to select the students for the secondary schools, exhibited item bias with regard to student gender. Mantel-Haenszel (MH) method was used in order to determine the differential item…

Karakaya, Ismail

2012-01-01

385

The tertiary structural changes in bacteriorhodopsin occur between M states: X-ray diffraction and Fourier transform infrared spectroscopy.  

PubMed Central

The tertiary structural changes occurring during the photocycle of bacteriorhodopsin (BR) are assigned by X-ray diffraction to distinct M states, M1 and M2. Purple membranes (PM) of the mutant Asp96Asn at 15, 57, 75 and 100% relative humidity (r.h.) were studied in a parallel X-ray diffraction and Fourier transform infrared (FTIR) spectroscopic investigation. Light-dependent conformational changes of BR-Asp96Asn are observed at high hydration levels (100 and 75% r.h.) but not in partially dehydrated samples (57 and 15% r.h.). The FTIR spectra of continuously illuminated samples at low and high hydration, despite some differences, are characteristic of the M intermediate. The changes in diffraction patterns of samples in the M2 state are of the same magnitude as those of wild-type samples trapped with GuaHCl in the M(G) state. Additional large changes in the amide bands of the FTIR spectra occur between M2 and M(G). This suggests, that the tertiary structural changes between M1 and M2 are responsible for the switch opening the cytoplasmic half-channel of BR for reprotonation to complete the catalytic cycle. These tertiary structural changes seem to be triggered by a charge redistribution which might be a common feature of retinal proteins also in signal transduction. PMID:9130693

Sass, H J; Schachowa, I W; Rapp, G; Koch, M H; Oesterhelt, D; Dencher, N A; Büldt, G

1997-01-01

386

Extent of Delay in Diagnosis in New Smear Positive Patients of Pulmonary Tuberculosis Attending Tertiary Care Hospital  

PubMed Central

Background: India is the highest tuberculosis (TB) burden country accounting for one-fifth of the global incidence. It is estimated that, annually, 1.9 million cases are from India and about 0.8 million are infectious, new smear, positive pulmonary TB cases. The present study was a cross-sectional study conducted in a tertiary care hospital to determine the extent of delay in diagnosis and initiating the treatment after diagnosis in new smear, positive pulmonary TB patients attending a tertiary care hospital of Haryana during a 1-year period. Methods: A total of 204 patients were interviewed after being diagnosed as new sputum, positive TB (NSP-TB) by the treating doctor at the tertiary care hospital and re-interviewed at their home after initiation of anti-TB treatment. Chi-square test and analysis of variance (ANOVA) were used for statistical analysis. Results: More than half of the study patients delayed their first consultation with a health care system. The mean and median patient delay was 32.97 and 16 days, respectively. Lack of awareness of the disease was the leading cause for the patient delay. The mean duration of delay at peripheral health care provider was 60.46 days. The mean and median delay at tertiary care hospital was 8.35 and 4 days, respectively. Most of the patients delayed for diagnosis as per revised national TB control program (RNTCP) guidelines. The mean total delay in diagnosis was 75.71 days. Conclusions: There is an urgent need to scale up the information education communication activities to decrease the patient delay. Doctor at all level of health care need to be actively involved for subjecting the suspects to sputum examination at the earliest possible, as per RNTCP guidelines. PMID:24498507

Behera, Binod Kumar; Jain, Ram Bilash; Gupta, Krishan Bihari; Goel, Manish Kumar

2013-01-01

387

Induction of Methyl Tertiary Butyl Ether (MTBE)-Oxidizing Activity in Mycobacterium vaccae JOB5 by MTBE  

PubMed Central

Alkane-grown cells of Mycobacterium vaccae JOB5 cometabolically degrade the gasoline oxygenate methyl tertiary butyl ether (MTBE) through the activities of an alkane-inducible monooxygenase and other enzymes in the alkane oxidation pathway. In this study we examined the effects of MTBE on the MTBE-oxidizing activity of M. vaccae JOB5 grown on diverse nonalkane substrates. Carbon-limited cultures were grown on glycerol, lactate, several sugars, and tricarboxylic acid cycle intermediates, both in the presence and absence of MTBE. In all MTBE-containing cultures, MTBE consumption occurred and tertiary butyl alcohol (TBA) and tertiary butyl formate accumulated in the culture medium. Acetylene, a specific inactivator of alkane- and MTBE-oxidizing activities, fully inhibited MTBE consumption and product accumulation but had no other apparent effects on culture growth. The MTBE-dependent stimulation of MTBE-oxidizing activity in fructose- and glycerol-grown cells was saturable with respect to MTBE concentration (50% saturation level = 2.4 to 2.75 mM), and the onset of MTBE oxidation in glycerol-grown cells was inhibited by both rifampin and chloramphenicol. Other oxygenates (TBA and tertiary amyl methyl ether) also induced the enzyme activity required for their own degradation in glycerol-grown cells. Presence of MTBE also promoted MTBE oxidation in cells grown on organic acids, compounds that are often found in anaerobic, gasoline-contaminated environments. Experiments with acid-grown cells suggested induction of MTBE-oxidizing activity by MTBE is subject to catabolite repression. The results of this study are discussed in terms of their potential implications towards our understanding of the role of cometabolism in MTBE and TBA biodegradation in gasoline-contaminated environments. PMID:14766585

Johnson, Erika L.; Smith, Christy A.; O'Reilly, Kirk T.; Hyman, Michael R.

2004-01-01

388

Safer Science  

ERIC Educational Resources Information Center

This column provides best safety practices for the science classroom and laboratory. In this month's issue, pregnancy policy in the laboratory is discussed. One can't ignore the fact that student and faculty pregnancies--and the resulting potential hazards in the science laboratory--exist at the high school level. Science teachers need to be…

Roy, Ken

2011-01-01

389

An Investigation of Communication Patterns and Strategies between International Teaching Assistants and Undergraduate Students in University-level Science Labs.  

E-print Network

??Investigates communication between international teaching assistants and their undergraduate students in university-level chemistry labs. Qualitative and quantitative data from observations and interviews with study participants… (more)

Gourlay, Barbara Elas

2008-01-01

390

Differential Item Functioning by Gender on a Large-Scale Science Performance Assessment: A Comparison across Grade Levels.  

ERIC Educational Resources Information Center

The fifth-grade and eighth-grade science items on a state performance assessment were compared for differential item functioning (DIF) due to gender. The grade 5 sample consisted of 8,539 females and 8,029 males and the grade 8 sample consisted of 7,477 females and 7,891 males. A total of 30 fifth grade items and 26 eighth grade items were…

Holweger, Nancy; Taylor, Grace

391

The application of language-game theory to the analysis of science learning: Developing an interpretive classroom-level learning framework  

NASA Astrophysics Data System (ADS)

In this study an interpretive learning framework that aims to measure learning on the classroom level is introduced. In order to develop and evaluate the value of the framework, a theoretical/empirical study is designed. The researcher attempted to illustrate how the proposed framework provides insights on the problem of classroom-level learning. The framework is developed by construction of connections between the current literature on science learning and Wittgenstein's language-game theory. In this framework learning is defined as change of classroom language-game or discourse. In the proposed framework, learning is measured by analysis of classroom discourse. The empirical explanation power of the framework is evaluated by applying the framework in the analysis of learning in a fifth-grade science classroom. The researcher attempted to analyze how students' colloquial discourse changed to a discourse that bears more resemblance to science discourse. The results of the empirical part of the investigation are presented in three parts: first, the gap between what students did and what they were supposed to do was reported. The gap showed that students during the classroom inquiry wanted to do simple comparisons by direct observation, while they were supposed to do tool-assisted observation and procedural manipulation for a complete comparison. Second, it was illustrated that the first attempt to connect the colloquial to science discourse was done by what was immediately intelligible for students and then the teacher negotiated with students in order to help them to connect the old to the new language-game more purposefully. The researcher suggested that these two events in the science classroom are critical in discourse change. Third, it was illustrated that through the academic year, the way that students did the act of comparison was improved and by the end of the year more accurate causal inferences were observable in classroom communication. At the end of the study, the researcher illustrates that the application of the proposed framework resulted in an improved version of the framework. The improved version of the proposed framework is more connected to the topic of science learning, and is able to measure the change of discourse in higher resolution.

Ahmadibasir, Mohammad

392

View of gravity health science from molecular and cellular level focusing complimentary and alternative medical sciences: Proteins dynamics to make shape and their molecular chaperones in cultured myocyte  

Microsoft Academic Search

Gravity is one of factors to maintain our living system to be active and healthy, because our biological system is constructed based on at least three important conditions under gravity on the earth as follows: 1) activity-dependent system at both levels of the cell and body, 2) morpho-dynamic system constituted of the cytoskeleton and extracellular matrix as, and 3) self

Yoriko Atomi; Eri Fujita; Tomohiro Ohsawa; Takashi Sakurai; Muneo Takaoki; Masamichi Yamashita; Takahiro Harada; Kazuhiko Ishihara; Takayoshi Suzuki; Toshiyuki Watanabe; Iichiro Harada

393

Science of Alcohol Curriculum for American Indians (SACAI): An Interdisciplinary Approach to the Study of the Science of Alcohol for Upper Elementary and Middle Level Students.  

ERIC Educational Resources Information Center

This curriculum provides American Indian youth with a framework for learning about the effects of alcohol on the body and the community. The curriculum stresses the development of scientific thinking skills and was designed for upper elementary and middle level students. The guide consists of four units: How Does Alcohol Circulate through the Body…

American Indian Science and Engineering Society, Boulder, CO.

394

Video Primal Sketch: A Generic Middle-Level Representation of Video Institute for Information and System Sciences  

E-print Network

Video Primal Sketch: A Generic Middle-Level Representation of Video Zhi Han Zongben Xu Institute This paper presents a middle-level video representation named Video Primal Sketch (VPS), which integrates two. This paper makes three contributions: i) learning a dictionary of video primitives as parametric generative

Zhu, Song Chun

395

A Cretaceous-Tertiary mass extinction? Were most of Earth's species killed off?  

NASA Technical Reports Server (NTRS)

For the past decade, the scientific and popular press have carried frequent articles about a catastrophic mass extinction that supposedly destroyed the majority of the earth's species, including the dinosaurs, approximately 65 million years ago. Since 1980, more than 2000 papers and books have dealt with some aspect of a mass extinction at the Cretaceous-Tertiary (K/T) boundary. One authoritative estimate of the severity of the extinctions is that 60-80% of all the living species became extinct at this boundary (Raup 1988). There appears to be a general acceptance of the fact that such a great catastrophe did occur. Most of the argument among scientists now is devoted to the determination of the cause. In this article, I argue that the species changes at the K/T boundary were neither sudden nor catastrophic. They were most likely caused by a regression of sea level that led to a decrease in primary production.

Briggs, J. C.

1991-01-01

396

A possible tsunami deposit at the Cretaceous-Tertiary boundary in Pernambuco, northeastern Brazil  

NASA Astrophysics Data System (ADS)

Interdisciplinarry and integrated investigations of a stratigraphic succession spanning the Cretaceous-Tertiary (K-T) boundary in Pernambuco (the Poty Quarry section, near Recife), northeastern Brazil, provides direct evidence for the hypothesis of an extraterrestrial bolide impact event. Discussions on the exact position of the K-T boundary point to an impact event in the earliest Danian. One particular bed at the base of the Maria Farinha Formation shows sedimentary characteristics and exotic (probably impact-derived) material which suggest the action of a tsunami wave. The distribution of iridium concentrations throughout the studied succession records a major peak of iridium (up to 69 times the background levels) at about 15-20 cm above the main tsunami bed.

Albertão, Gilberto A.; Martins, Paulo P.

1996-07-01

397

A Cretaceous-Tertiary mass extinction? Were most of Earth's species killed off?  

PubMed

For the past decade, the scientific and popular press have carried frequent articles about a catastrophic mass extinction that supposedly destroyed the majority of the earth's species, including the dinosaurs, approximately 65 million years ago. Since 1980, more than 2000 papers and books have dealt with some aspect of a mass extinction at the Cretaceous-Tertiary (K/T) boundary. One authoritative estimate of the severity of the extinctions is that 60-80% of all the living species became extinct at this boundary (Raup 1988). There appears to be a general acceptance of the fact that such a great catastrophe did occur. Most of the argument among scientists now is devoted to the determination of the cause. In this article, I argue that the species changes at the K/T boundary were neither sudden nor catastrophic. They were most likely caused by a regression of sea level that led to a decrease in primary production. PMID:11538279

Briggs, J C

1991-10-01

398

Portraying Real Science in Science Communication  

ERIC Educational Resources Information Center

In both formal and informal settings, not only science but also views on the nature of science are communicated. Although there probably is no singular nature shared by all fields of science, in the field of science education it is commonly assumed that on a certain level of generality there is a consensus on many features of science. In this…

van Dijk, Esther M.

2011-01-01

399

The Effect of Set Induction on student knowledge, attitude, and engagement levels of high school agricultural science students  

E-print Network

The purpose of this study was to determine if applying set induction to the beginning of a lesson would have an effect on student knowledge, attitude, and/or engagement levels throughout the lesson. Researchers addressed specific objectives...

Johnston, Tiffany Sarah Lavern

2010-01-14

400

Interactive online simulations and curriculum for teaching and learning fundamental concepts in molecular science at the undergraduate level  

E-print Network

The number of research disciplines that focus, at least in part, on the atomic or molecular level is rapidly increasing. As a result, the concepts that describe the behavior of atoms and molecules, known collectively as ...

Ashe, Colin Alexander

2010-01-01

401

A tertiary plastid uses genes from two endosymbionts.  

PubMed

The origin and subsequent spread of plastids by endosymbiosis had a major environmental impact and altered the course of a great proportion of eukaryotic biodiversity. The ancestor of dinoflagellates contained a secondary plastid that was acquired in an ancient endosymbiotic event, where a eukaryotic cell engulfed a red alga. This is known as secondary endosymbiosis and has happened several times in eukaryotic evolution. Certain dinoflagellates, however, are unique in having replaced this secondary plastid in an additional (tertiary) round of endosymbiosis. Most plastid proteins are encoded in the nucleus of the host and are targeted to the organelle. When secondary or tertiary endosymbiosis takes place, it is thought that these genes move from nucleus to nucleus, so the plastid retains the same proteome. We have conducted large-scale expressed sequence tag (EST) surveys from Karlodinium micrum, a dinoflagellate with a tertiary haptophyte-derived plastid, and two haptophytes, Isochrysis galbana and Pavlova lutheri. We have identified all plastid-targeted proteins, analysed the phylogenetic origin of each protein, and compared their plastid-targeting transit peptides. Many plastid-targeted genes in the Karlodinium nucleus are indeed of haptophyte origin, but some genes were also retained from the original plastid (showing the two plastids likely co-existed in the same cell), in other cases multiple isoforms of different origins exist. We analysed plastid-targeting sequences and found the transit peptides in K.micrum are different from those found in either dinoflagellates or haptophytes, pointing to a plastid with an evolutionarily chimeric proteome, and a massive remodelling of protein trafficking during plastid replacement. PMID:16490209

Patron, Nicola J; Waller, Ross F; Keeling, Patrick J

2006-04-14

402

Ignition of global wildfires at the Cretaceous/Tertiary boundary  

NASA Technical Reports Server (NTRS)

The recent discovery of an apparently global soot layer at the Cretaceous/Tertiary boundary indicates that global wildfires were somehow ignited by the impact of a comet or asteroid. It is shown here that the thermal radiation produced by the ballistic reentry of ejecta condensed from the vapor plume of the impact could have increased the global radiation flux by factors of 50 to 150 times the solar input for periods ranging from one to several hours. This great increase in thermal radiation may have been responsible for the ignition of global wildfires, as well as having deleterious effects on unprotected animal life.

Melosh, H. J.; Schneider, N. M.; Zahnle, K. J.; Latham, D.

1990-01-01

403

Proximal Cretaceous-Tertiary boundary impact deposits in the Caribbean  

NASA Astrophysics Data System (ADS)

Trace element, isotopic, and mineralogic studies indicate that the proposed impact at the Cretaceous-Tertiary boundary occurred in an ocean basin, although a minor component of continental material is required. The size and abundance of shocked minerals and the restricted geographic occurrence of the ejecta layer and impact-wave deposits suggest an impact between the Americas. Coarse boundary sediments at sites 151 and 153 in the Colombian Basin and 5- to 450-meter-thick boundary sediments in Cuba may be deposits of a giant wave produced by a nearby oceanic impact.

Hildebrand, Alan R.; Boynton, Willam V.

1990-05-01

404

Undergraduate Biotechnology Students' Views of Science Communication  

ERIC Educational Resources Information Center

Despite rapid growth of the biotechnology industry worldwide, a number of public concerns about the application of biotechnology and its regulation remain. In response to these concerns, greater emphasis has been placed on promoting biotechnologists' public engagement. As tertiary science degree programmes form the foundation of the biotechnology…

Edmondston, Joanne Elisabeth; Dawson, Vaille; Schibeci, Renato

2010-01-01

405

Effects of discipline-based art education and interdisciplinary art education on artistic development and production, higher-level thinking, and attitudes toward science and social studies  

NASA Astrophysics Data System (ADS)

This research was conducted to assess the effectiveness of discipline-based art education (DBAE) and interdisciplinary art (IA) teaching methods on art production, higher level thinking skills, and attitudes toward science and social studies. Two of the sixth-grade classes at a rural West Tennessee school were taught using the DBAE method and two were given the IA treatment. The evaluation of art production was two-fold using an Evaluation of Student Art Projects (Herberholz & Herberholz, 1994) which anonymously measured each group of projects on creativity, expressiveness, organization of elements and principles of art, craftsmanship, and how the artwork related to academic content. The second appraisal of art products involved emergent categorization with reference to Herberholz and Herberholz's (1994) categories of styles and student artistic development. Higher level thinking skills were determined from the Evaluation of Student Essays which measured academic knowledge, composition, and Bloom's higher level thinking stages of analysis, synthesis, and evaluation. Student attitudes toward social studies and science before and after treatment were measured using the Estes Attitude Survey (Estes, Johnstone, & Richards, 1975). T-tests, an analysis of variance (Anova) and data analysis were used to evaluate art production. T-tests were also used to evaluate student essays before and after each treatment. Analysis of data indicated no significant differences between the art products of students in DBAE or IA. There were no significant differences in the attitudes or higher level thinking skills between students undergoing the DBAE or IA treatment. The emergent categorization of art production showed that DBAE produced more overall creativity and originality than IA. The researcher believes that students can benefit from a combination of both methods.

Smith, Lisa Lessenberry

406

Regional prospectivity of Mesozoic and Tertiary in the eastern Adriatic and adjacent area  

SciTech Connect

Post-Hercynian deposits in the eastern Adriatic and the adjacent external zones of the Dinarides and Albanian Hellenides may be subdivided into four facies groups. (1) Permian-Lower Triassic clastics and carbonates with some evaporites, (2) Middle Triassic-lower Tertiary carbonate platform facies with associated continental margin deeper marine sequences, (3) Upper Cretaceous-lower Tertiary flysch, and (4) middle Tertiary molasse and postorogenic Neogene sediments. The Permian to lower Tertiary section was deposited during the complex Alpine cycle, while the upper Tertiary section is the product of post-Alpine deposition. This depositional history during markedly different tectonic regimes creates two groups of petroleum plays in the eastern Adriatic: (1) Alpine cycle plays in the Permian to lower Tertiary in the thrust-faulted and folded foreland of Adria and (2) post-Alpine plays in upper Tertiary postorogenic or late synorogenic basins. Around the Adriatic, the post-Alpine plays have so far proved the most successful. Major production occurs in the onshore Po basin and its extension beneath the Adriatic. Some of this production is from deep Alpine-cycle reservoirs, but the bulk is from the upper Tertiary-Quaternary. Similar horizons produce onshore and offshore the central-southern Adriatic coast of Italy. Major Tertiary production also occurs to the northeast in the Pannonian basin of Yugoslavia and Hungary from Miocene and younger sequences. Onshore Albania produces significant quantities of hydrocarbons; although data are scarce, much of this production is presumably from upper Tertiary molasse or lower Tertiary flysch.

Scott, J.; Dolan, P.; Lunn, G. (Curtin Univ. of Technology, Perth (Australia))

1988-08-01

407

The Message is in the Data (not the Medium): Results From a Secondary-level Environmental Science Workshop  

NASA Astrophysics Data System (ADS)

I ran an extended (18 session) workshop during the 2007-2008 school year at a public Montessori elementary in Boulder Colorado. A reprise is running this year that extends to middle school students. The curriculum emphasis was on physical and environmental science, assembled in part using synoptic principles drawn from the National Research Council report "How People Learn". The curriculum was driven by story lines that began and ended in the students' zone of comprehension, in the interim extending through proximal development to open-ended inquiry. The workshop had four distinct purposes: i) Provide students an opportunity to problem-solve, ii) Break barriers between classroom learning and field science, iii) Determine what does and does not work with students at this age, iv) Begin building an alternative outreach path for professional scientists, specifically to avoid one-off presentation ('magic show') syndrome. New technology was incorporated in the workshop as needed--from thermochrons to virtual globes--but this was de- emphasized to keep focus on the subject matter. Data played a much stronger role particularly during early sessions where students were divided into 'phenomena' and 'scientist' groups in order to see both sides of the inquiry process. I present here workshop results, successes and failures, with two emphases: First on the idea that data can be an excellent way to build metacognitive skills in students around age 10. Second that-- with all due credit to Marshall McLuhan--the medium best serves by staying out of the way of the message.

Fatland, D. R.

2008-12-01

408

Deriving Accessible Science Books for the Blind Students of Physics  

NASA Astrophysics Data System (ADS)

We present a novel integrated methodology for the development and production of accessible physics and science books from the elementary up to tertiary educational levels. This language independent approach adopts the Design-for-All principles, the available international standards for alternative formats and the Universal Design for Learning (UDL) Guidelines. Moreover it supports both static (embossed and refreshable tactile) and dynamic (based on synthetic speech and other sounds) accessibility. It can produce Tactile Books (Embossed Braille and Tactile Graphics), Digital Talking Books (or Digital Audio Books), Large Print Books as well as Acoustic-Tactile Books for the blind and visually impaired students as well as but for the print-disabled. This methodology has been successfully applied in the case of blind students of the Physics, Mathematics and Informatics Departments in the University of Athens.

Kouroupetroglou, Georgios; Kacorri, Hernisa

2010-01-01

409

Early Tertiary subsidence and sedimentary facies - Northern Sirte Basin, Libya  

SciTech Connect

The subsidence curves and subsidence rate curves for the Sirte basin, constructed from the stratigraphic record, show that subsidence was continuous throughout Late Cretaceous and Tertiary times, reaching a maximum during the Paleocene and Eocene, when a major reactivation of faults occurred. Shales and carbonates were deposited during all of the Late Cretaceous and Tertiary. Abrupt lateral facies changes occur from the platform areas toward the deeper troughs along with steep downdip thickening. The absence of upper Paleozoic and lower Mesozoic sediments suggests that the area was domed, faulted, and eroded during the late Mesozoic. As a result of crustal extension during the Paleocene, a marked lithologic and structural change occurred. The Heira Shale succeeded the Kalash Limestone in the Marada trough. Reactivation of the earlier faults, accompanied by an increase in the sediment supply from the south, caused these lower Paleocene shales to cover the entire area, with the exception of the old highs where carbonate deposition continued. An intercalation of shales and carbonates provides a sensitive indicator of change of depth and sediment type. 14 figures.

Gumati, Y.D.; Kanes, W.H.

1985-12-01

410

Further observations on tertiary dentin in human deciduous teeth.  

PubMed

The structure of reparative tertiary dentin in human deciduous teeth has been studied. Reparative dentin is secreted by a new generation of odontoblast-like cells which have been subject to strong stimuli, e.g., trauma or deep active caries lesions with associated pulp inflammation. Ground sections of 25 teeth were prepared, and contact microradiographs were produced. Another 30 teeth were demineralized, embedded in paraffin, sectioned, and stained with hematoxylin and eosin. Some demineralized sections from each tooth were also studied in the scanning electron microscope. Most of the teeth showed some type of tertiary dentin formation. Mineralized tissue with a varied morphology was observed. In teeth which had been subject to trauma, the entire pulp chamber was sometimes obliterated. Mineralization seemed to start in the incisal region, and the central part of the pulp was the last part to be obliterated. Radiolucent voids and canals were seen. The organic matrix was dense and fibrous. In the pulp chamber and especially in the root canals, resorption had often occurred, indicating that signals giving rise to odontoclasts were also present. Resorption was often followed by deposition of various amounts of cementum-like repair tissue. The cells responsible for the formation of reparative dentin are believed to be subodontoblasts or undifferentiated ectomesenchymal cells. The varied morphology of the reparative dentin, observed in the pulp of the teeth examined, indicates that different stimuli lead to induction of hard-tissue-forming cells which produce different types of hard tissue. PMID:12640746

Klinge, R F

2001-08-01

411

In situ reactive oxygen species production for tertiary wastewater treatment.  

PubMed

The goal of this research was to develop a new approach for tertiary water treatment, particularly disinfection and removal of refractory organic compounds, without adding any chemical. Hydrogen peroxide can indeed be produced from dissolved oxygen owing to electrochemical processes. Using various current intensities (1.0 to 4.0 A), it was possible to in situ produce relatively high concentration of H2O2 with a specific production rate of 0.05?×?10(-5) M/min/A. Likewise, by using ultraviolet-visible absorption spectroscopy method, it was shown that other reactive oxygen species (ROS) including HO(*) radical and O3 could be simultaneously formed during electrolysis. The ROS concentration passed from 0.45?×?10(-5) M after 20 min of electrolysis to a concentration of 2.87?×?10(-5) M after 100 min of electrolysis. The disinfection and the organic matter removal were relatively high during the tertiary treatment of municipal and domestic wastewaters. More than 90 % of organic compounds (chemical oxygen demand) can be removed, whereas 99 % of faecal coliform abatement can be reached. Likewise, the process was also effective in removing turbidity (more than 90 % of turbidity was removed) so that the effluent became more and more transparent. PMID:25483973

Guitaya, Léa; Drogui, Patrick; Blais, Jean François

2014-12-01

412

Source rock in the Lower Tertiary and Cretaceous, deep-water Gulf of Mexico  

SciTech Connect

Amoco drilled three wells in the deep-water Gulf of Mexico in 1993. One well, in Mississippi Canyon Block 84 (W.D. 5200 ft), drilled a structural feature. The well penetrated Cretaceous section and crossed the middle Cenomanian unconformity. Six sidewall cores from 14,230-15,200 ft (subsea) contained TOC values from 2.6 to 5.2% with hydrogen indices front 360 to 543 ppm in lower Tertiary and Cretaceous shales. All six cores were thermally immature, for oil generation, based on biomarker ratios and vitrinite reflectance measurements. Organic extracts from cores in the Cretaceous had biomarker characteristics similar to oil reservoired in the Miocene. The oil was probably generated from a similar, but more mature, source rock. The high structural position of the well prevented the lower Tertiary and Upper Cretaceous section from entering the oil window at this location. There are over 2000 ft of structural relief and an additional 6000-8000 ft of Lower Cretaceous section below the level penetrated by the well. It is probable that an equivalent section off structure is in the oil window. Prior to drilling, estimates of expected thermal maturities and temperatures were made using {sub BASINMOD}, a hydrocarbon generation/expulsion modeling package. The model predicted higher well temperatures (e,g., 225{degrees}F vs. 192{degrees}F) and lower vitrinite maturity (0.44% vs. 0.64%) than encountered in the well. Vitrinite reflectance equivalents of 0.41% and 0.43% were calculated from biomarker ratios of the Cretaceous core extracts, matching the {sub BASINMOD} predicted value of 0.44%.

Wagner, B.E.; Sofer, Z.; Claxton, B.L. [Amoco Production Co., Houston, TX (United States)

1994-09-01

413

The coexistence approach — a method for quantitative reconstructions of Tertiary terrestrial palaeoclimate data using plant fossils  

Microsoft Academic Search

The coexistence approach is introduced as a method for quantitative terrestrial palaeoclimate reconstructions in the Tertiary. It is based on the assumption that Tertiary plant taxa have similar climatic requirements to their nearest living relatives. The aim of the coexistence approach is to find for a given fossil flora and a given climate parameter the climatic interval in which all

Volker Mosbrugger; Torsten Utescher

1997-01-01

414

Assembly of core helices and rapid tertiary folding of a small bacterial group I ribozyme  

E-print Network

Assembly of core helices and rapid tertiary folding of a small bacterial group I ribozyme Prashanth state of a small group I ribozyme from Azoarcus pre-tRNAile. Base pairing of the ribozyme core requires. Tertiary folding occurs in ribozymes

Westhof, Eric

415

Is It Ever Too Late to Study? The Economic Returns on Late Tertiary Degrees in Sweden  

ERIC Educational Resources Information Center

This paper addresses the economic returns on tertiary degrees obtained in ages above 30 for individuals with upper-secondary schooling in light of current ideas on lifelong learning. Sweden is a case in point: Swedish tertiary education is open to older students, and labor market legislation supports employees who take a leave to study. The…

Hallsten, Martin

2012-01-01

416

Collaboration/Competition Crossroads: National/Supranational Tertiary Education Policies on a Collision Course  

ERIC Educational Resources Information Center

In the context of tertiary education, the paper explores the nature of the General Agreement on Trade in Services (GATS) negotiation process and obligation framework, with examples, considers whether GATS is needed to support a country's "export education" and what a country could do to protect its tertiary education system from the impact of a…

Patterson, Glenys

2005-01-01

417

West Hackberry Tertiary Project. Quarterly technical progress report, June 3, 1994September 2, 1994  

Microsoft Academic Search

The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the

Gillham

1994-01-01

418

West Hackberry Tertiary Project. Quarterly technical progress report, April 1, 1996June 30, 1996  

Microsoft Academic Search

The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the

T. Gillham; B. Cerveny; E. Turek

1996-01-01

419

West Hackberry Tertiary Project. Quarterly technical progress report, October 1, 1995December 31, 1995  

Microsoft Academic Search

The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the

T. Gillham; B. Cerveny; E. Turek

1996-01-01

420

West Hackberry Tertiary Project. Quarterly technical progress report, December 3, 1994March 2, 1995  

Microsoft Academic Search

The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the

T. Gillham; B. Cerveny; E. Turek

1995-01-01

421

West Hackberry Tertiary Project. Quarterly technical progress report, January 1, 1996March 31, 1996  

Microsoft Academic Search

The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the

T. Gillham; B. Cerveny; E. Turek

1996-01-01

422

West Hackberry Tertiary Project. Quarterly technical progress report, July 1September 30, 1996  

Microsoft Academic Search

The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the

T. Gillham; B. Cerveny; E. Turek

1996-01-01

423

West Hackberry tertiary project. Quarterly technical progress report, September 3, 1994December 2, 1994  

Microsoft Academic Search

The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the

T. Gillham; B. Cerveny; E. Turek

1994-01-01

424

West Hackberry Tertiary Project. Quarterly technical progress report, March 3, 1993June 3, 1994  

Microsoft Academic Search

The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the

Gillham

1994-01-01

425

West Hackberry Tertiary Project. Quarterly technical progress report, March 3, 1995June 2, 1995  

Microsoft Academic Search

The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the

T. Gillham; B. Cerveny; E. Turek

1995-01-01

426

West Hackberry tertiary project. Summary annual report, September 3, 1996September 2, 1997  

Microsoft Academic Search

The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the

Gillham

1997-01-01

427

West Hackberry Tertiary Project. Quarterly technical progress report, September 3, 1993December 3, 1993  

Microsoft Academic Search

The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the use

M. R. Fassihi; T. H. Gillham

1993-01-01

428

Economic issues regarding tertiary canal improvement programs, with an example from Egypt  

Microsoft Academic Search

Public investments in farmer-managed tertiary canals can promote an improved distribution of water among farmers, enabling them to improve water management practices, enhance crop yields, and select from a wider variety of cropping choices. This paper examines economic issues regarding public programs designed to improve or rehabilitate tertiary canals, particularly in developing countries. Key issues include defining property rights to

Dennis Wichelns

1998-01-01

429

Perceptions of the Tertiary Learning Environment: Is Mathematics Worth the Effort?  

ERIC Educational Resources Information Center

Focuses on one potential source of influence on students' perceptions of a tertiary mathematics learning environment. Discusses data from two large-scale surveys (N=1883) and from smaller number of interviews (N=71) with students enrolled in tertiary mathematics courses at five Australian universities. Reveals considerable variations in the…

Forgasz, Helen J.; Leder, Gilah C.

2000-01-01

430

Paleocene reefs on the Maiella Platform Margin, Italy: An example of the effects of the cretaceous\\/tertiary boundary events on reefs and carbonate platforms  

Microsoft Academic Search

Summary  Reef facies, reef types and their biotic associations in the Maiella platform margin (central Italy) provide qualitative evidence\\u000a for a significant reef decline across the Cretaceous\\/Tertiary (K\\/T) boundary, and indicate two phases of reef recovery during\\u000a the Paleocene. Rudists dominated the reef community until the latest Cretaceous. A significant sea-level fall around the time\\u000a of the K\\/T boundary is documented

Adam Vecsei; Esmail Moussavian

1997-01-01

431

A new perspective on Tertiary basin evolution in northeastern Tibet:Evidence for crustal extension during the middle Tertiary  

NASA Astrophysics Data System (ADS)

New stratigraphic observations from the northern margin of the mid-Tertiary Longxi basin in northeastern Tibet reveal that basin subsidence and sediment accumulation was associated with crustal extension. The time-space patterns of development of high topography associated with the Indo-Asian collision are central to ongoing debates over the mechanics of intracontinental deformation and purported linkages between climate and tectonics. In northeastern Tibet, the widespread appearance of coarse terrestrial sediment during the Oligocene is commonly interpreted to reflect the initial development of a foreland basin that reflects crustal thickening along the present-day margin of the plateau. Basin development was temporally associated with clockwise vertical-axis rotations (Dupont-Nivet et al., 2004), exhumation of marginal ranges along the southern basin margin (Clark et al., 2010), and fault activity (Duvall et al., 2011). However, a lack of direct observations relating sediment accumulation to fault activity leaves this interpretation uncertain. Here we present new evidence from stratigraphic studies along the northernmost margin of the Tertiary Longxi basin that challenge existing models for the kinematics of basin formation. Tertiary sediment along the northern margin of the Longxi basin initiated at 29 - 30 Ma (Wang et al., 2011) and is characterized by coarse-grained, proximal deposits of the Sikouzi Formation. Sedimentary provenance, paleocurrents, facies, and isopach distributions reveal that sediments were sourced from fault-bound blocks now exposed in the Liupan Shan and associated ranges that mark the northern margin of the basin. Fault systems presently strike E-W to NW-SE and dip steeply to the south; isopach distributions show that the Sikouzi Fm. is thickest on the hanging-wall blocks and thins away from the faults. These relationships suggest that extensional slip along the faults controlled development of accommodation space during the Oligocene-Early Miocene. Extension was followed by continued sediment accumulation over a broad region during the middle Miocene; sedimentary facies represent low-energy (lacustrine) environments. Miocene deposits onlap footwall ranges suggesting a cessation of faulting during this time. Reactivation of fault systems during active sinistral transpression along the Haiyuan fault initiated at ca.10 Ma and was marked by the appearance of locally-derived, coarse detritus (Wang et al., 2011). The association of initial basin subsidence in the Oligocene with normal faulting along basin-bounding faults implies a local kinematic regime characterized by N-NE directed extension. Similarities with kinematics of Tertiary deformation in the Ordos region (Zhang et al., 1999) and along the West Qinling orogen (Ratschbacher et al., 2003) imply that this event was regional in scale and affected a broad region of north China. We suggest that the onset of Tertiary sedimentation in the Longxi basin did not develop in the foreland of a nascent Tibetan Plateau, but rather is more likely tied to extensional/transtensional deformation, perhaps associated with the opening of east Asian marginal basins.

Wang, W.; Kirby, E.; Zhang, P.

2011-12-01

432

Geotechnical simulation of tertiary creep behavior of landslides induced by extreme rainfall  

NASA Astrophysics Data System (ADS)

Rainstorm indirectly provokes landslides because of its ability to level up the groundwater table after certain hours dropping. This process causes excess pore water pressure generation and soil liquefaction at the sliding surface and determines the behavior of landslides triggered by extreme rainfall. Creep deformations are commonly observed in a slope before sliding down. Creep behavior, in particular tertiary creep behavior, is therefore the main focus in predicting the final failure time of a slope. Progressive failure/tertiary creep deformation is the stage when strain rate exponentially increases just before final collapse. This study aims at simulating geotechnical model of tertiary creep behavior in soils, which was empirically discovered by Saito (1965) and Fukuzono (1985) to help issue warning of rainfall-induced landslides in developing countries where there is no implemented methodology for issuing effective warming of landslides yet. Tertiary creep to failure is reproduced by pore-pressure-controlled test in ring shear apparatus, through which obvious relationship of A and ? (alpha) values was obtained, following consistent range with those found in previous studies under slightly deviated trend due to different test condition: pore-pressure-controlled and shear stress development tests. Constant shear speed test under shear speed of v=1cm/s was conducted in the ring shear apparatus to obtain the relation curve of shear resistance and shear displacement, from which exponential expression of creep behavior is originated. The model formula is governed by two constants: m and ? (gamma) whose relation with constants A and alpha was examined. Geotechnical simulation of creep behavior is then constructed by assuming that shear strength of soil increases and remains constant after reaching its maximum value in residual condition. This is to quantify normally consolidated condition of soils in natural slope. Shear resistance diminishes, while pore pressure is gradually generated through time until shear resistance is smaller than initial shear stress, and failure encounters. The large shear displacement took place after failure is used to calculate velocity and acceleration of virtual surface displacement. A and alpha values are measured through the plot of velocity and acceleration in log scale and compared with those of laboratory tests. In similar way, additional formulation of shear stress development condition to failure was also investigated. Consequently, model simulation of creep behavior to develop a most appropriate method for landslide early warning is successfully developed through very good correlation with experimental results. The constant m and ? are corresponded to A and ? respectively. A value gets smaller when m is higher, whereas alpha and gamma increase accordingly. The m value best fitted with experimental result is 0.1. Deviated trends were also observed in pore pressure control and shear stress increase simulations. The result shows that higher alpha value, higher landslide susceptibility is expected.

Dok, Atitkagna; Fukuoka, Hiroshi

2013-04-01

433

Air pollution linked to Remote Sensing tools - Science training using a Master's Level e-Learning Tool  

NASA Astrophysics Data System (ADS)

As we know it today air pollution is a release into the atmosphere of any substances, chemicals or particles, which are harmful both to the human and animal health as well as the health of the wider environment. The use of satellite based instruments is a young and developing research field and excellent for studying air pollution events over large areas at high spatial-temporal resolutions, especially when ground measurements, which are limited in spatial-temporal coverage, are not available. Students on postgraduate level should be trained in using, and analysing remote sensing data from both ground and satellite based or in interpreting the high variety in remote sensing e.g satellite images or maps. As follows an e-learning online module has been devised and constructed to facilitate the teaching of Remote Sensing of Troposphere from Space to research students at a Master's level. The module, which is essentially an interactive on-line text book, is stand alone, although it could be encompassed within a standard course management system. The scientific content is presented as study pages under three headings: remote sensing from space, the basics of radiation transfer, and retrieval procedures for tropospheric satellite data.The student is encouraged to test his or her comprehension of the material through exercises on the scientific topics.

Ladstätter-Weißenmayer, A.; Kanakidou, M.; Richter, A.; Wagner, T.; Borrell, P.; Law, R. J.; Burrows, J. P.

2009-04-01

434

Air pollution linked to Remote Sensing tools - Science training using a Master's Level e-Learning Tool  

NASA Astrophysics Data System (ADS)

As we know it today air pollution is a release into the atmosphere of any substances, chemicals or particles, which are harmful both to the human and animal health as well as the health of the wider environment. The use of satellite based instruments is a young and developing research field and excellent for studying air pollution events over large areas at high spatial-temporal resolutions, especially when ground measurements, which are limited in spatial-temporal coverage, are not available. Students on postgraduate level should be trained in using, and analysing remote sensing data from both ground and satellite based or in interpreting the high variety in remote sensing e.g satellite images or maps. As follows an e-learning online module has been devised and constructed to facilitate the teaching of Remote Sensing of Troposphere from Space to research students at a Master's level. The module, which is essentially an interactive on-line text book, is stand alone, although it could be encompassed within a standard course management system. The scientific content is presented as study pages under three headings: remote sensing from space, the basics of radiation transfer, and retrieval procedures for tropospheric satellite data.The student is encouraged to test his or her comprehension of the material through exercises on the scientific topics.

Ladstaetter-Weissenmayer, A.; Kanakidou, M.; Richter, A.; Wagner, T.; Borrell, P.; Law, R. J.; Burrows, J. P.

2009-09-01

435

Science for Real Life  

ERIC Educational Resources Information Center

State and national standards identify what students should know and be able to do, including what it means to "do" science, the historical significance of science achievement and its ethical underpinnings, and science from the human perspective. Middle level science programs that address the full range of science standards and connect learning to…

Hammerman, Elizabeth

2008-01-01

436

Disease patterns and clinical outcomes of patients admitted in intensive care units of tertiary referral hospitals of Tanzania  

PubMed Central

Background In sub-Saharan Africa the availability of intensive care unit (ICU) services is limited by a variety of factors, including lack of financial resources, lack of available technology and well-trained staff. Tanzania has four main referral hospitals, located in zones so as to serve as tertiary level referral centers. All the referral hospitals have some ICU services, operating at varying levels of equipment and qualified staff. We analyzed and describe the disease patterns and clinical outcomes of patients admitted in ICUs of the tertiary referral hospitals of Tanzania. Methods This was a retrospective analysis of ICU patient records, for three years (2009 to 2011) from all tertiary referral hospitals of Tanzania, namely Muhimbili National Hospital (MNH), Kilimanjaro Christian Medical Centre (KCMC), Mbeya Referral Hospital (MRH) and Bugando Medical Centre (BMC). Results MNH is the largest of the four referral hospitals with 1300 beds, and MRH is the smallest with 480 beds. The ratio of hospital beds to ICU beds is 217:1 at MNH, 54:1 at BMC, 39:1 at KCMC, and 80:1 at MRH. KCMC had no infusion pumps. None of the ICUs had a point-of-care (POC) arterial blood gas (ABG) analyzer. None of the ICUs had an Intensive Care specialist or a nutritionist. A masters-trained critical care nurse was available only at MNH. From 2009–2011, the total number of patients admitted to the four ICUs was 5627, male to female ratio 1.4:1, median age of 34 years. Overall, Trauma (22.2%) was the main disease category followed by infectious disease (19.7%). Intracranial injury (12.5%) was the leading diagnosis in all age groups, while pneumonia (11.7%) was the leading diagnosis in pediatric patients (<18 years). Patients with tetanus (2.4%) had the longest median length ICU stay: 8 (5,13) days. The overall in-ICU mortality rate was 41.4%. Conclusions The ICUs in tertiary referral hospitals of Tanzania are severely limited in infrastructure, personnel, and resources, making it difficult or impossible to provide optimum care to critically ill patients and likely contributing to the dauntingly high mortality rates. PMID:25245028

2014-01-01

437

Comparison of Topical Versus Sub-Tenon's Anesthesia in Phacoemulsification at a Tertiary Care Eye Hospital  

PubMed Central

Purpose: To compare the effectiveness of topical and sub-Tenon's anesthesia in providing pain relief during phacoemulsification. Methods: This randomized controlled trial was carried out at a tertiary eye care hospital, Coimbatore, Tamil Nadu, India. Patients who underwent phacoemulsification through self-sealing clear corneal incision with foldable intra-ocular lens implantation were randomized into two groups. Group 1 (n = 100) received topical anesthesia with 0.5% proparacaine (Paracaine, Sunways India Pvt. Ltd., India) drops. Group 2 (n = 100) received sub-Tenon's infiltration with 2% lignocaine (Xylocaine, AstraZeneca Pharma India Pvt. Ltd., India). As per study criteria, patients graded the pain during administration of anesthesia, during surgery and after surgery on a visual analogue pain scale. The surgeon graded overall patient co-operation. The complications were also noted. Data analysis was performed using Statistical Package for Social Sciences version 11. Student's t-test and Chi-square test were used for comparison of variables between the groups. Results: Sub-Tenon's anesthesia provided statistically significant better intra-operative pain relief and patient satisfaction than topical anesthesiat. No statistically significant difference was noted between the two groups regarding pain during administration, postoperative pain, and surgeon satisfaction. Conclusion: Sub-Tenon's anesthesia provides better pain relief than topical anesthesia during phacoemulsification.

Rashmi, Shambhu; Akshaya, Kibballi Madhukeshwar; Mahesha, Sarpangala

2014-01-01

438

Awareness about basic life support and emergency medical services and its associated factors among students in a tertiary care hospital in South India  

PubMed Central

Background: The knowledge and skills about the basic life support (BLS) and the advanced life support are the most important determining factors of the cardiopulmonary resuscitation (CPR) success rates. Objectives: To determine the level of awareness on BLS and skills among undergraduate and postgraduate students of medical and dental profession, as well as nursing students and interns in a tertiary care hospital. Materials and Methods: This descriptive cross-sectional study was conducted in a tertiary care hospital in South India. The awareness level on BLS and factors associated which include age, sex, level of training (undergraduate, internship, and postgraduate groups), course of study (nursing, dental, and medical groups), and previous exposure to BLS were assessed by using a structured questionnaire. The association of these variables with awareness level was assessed by independent t test, analysis of variance, and linear regression analysis. Results: Among 520 study subjects, 229 were students, 171 were interns, and 120 were postgraduate students. The overall mean score of awareness was 4.16 ± 1.40 (score range: 0-10). Age, sex, level of training, course of study, and previous exposure to BLS were significantly associated with awareness level in univariate analysis (P < 0.05). Linear regression model also showed that all the above variables were significantly associated with awareness level (P < 0.05). About 322 (61.9%) subjects attributed lack of awareness about BLS to lack of available professional training. About 479 (92.1%) responded that BLS training should be a part of medical curriculum. Conclusion: Awareness level on BLS is below average indicating the importance of professional training at all levels in a tertiary care health institution. PMID:25114425

Aroor, Akshatha Rao; Saya, Rama Prakash; Attar, Nazir Rahim; Saya, Ganesh Kumar; Ravinanthanan, Manikandan

2014-01-01

439

GRASr2 evaluation of aliphatic acyclic and alicyclic terpenoid tertiary alcohols and structurally related substances used as flavoring ingredients.  

PubMed

This publication is the 1st in a series of publications by the Expert Panel of the Flavor and Extract Manufacturers Assoc. summarizing the Panel's 3rd re-evaluation of Generally Recognized as Safe (GRAS) status referred to as the GRASr2 program. In 2011, the Panel initiated a comprehensive program to re-evaluate the safety of more than 2700 flavor ingredients that have previously met the criteria for GRAS status under conditions of intended use as flavor ingredients. Elements that are fundamental to the safety evaluation of flavor ingredients include exposure, structural analogy, metabolism, pharmacokinetics, and toxicology. Flavor ingredients are evaluated individually and in the context of the available scientific information on the group of structurally related substances. Scientific data relevant to the safety evaluation of the use of aliphatic acyclic and alicyclic terpenoid tertiary alcohols and structurally related substances as flavoring ingredients are evaluated. The group of aliphatic acyclic and alicyclic terpenoid tertiary alcohols and structurally related substances was reaffirmed as GRAS (GRASr2) based, in part, on their rapid absorption, metabolic detoxication, and excretion in humans and other animals; their low level of flavor use; the wide margins of safety between the conservative estimates of intake and the no-observed-adverse effect levels determined from subchronic studies and the lack of significant genotoxic and mutagenic potential. PMID:24689743

Marnett, Lawrence J; Cohen, Samuel M; Fukushima, Shoji; Gooderham, Nigel J; Hecht, Stephen S; Rietjens, Ivonne M C M; Smith, Robert L; Adams, Timothy B; Bastaki, Maria; Harman, Christie L; McGowen, Margaret M; Taylor, Sean V

2014-04-01

440

Prevalence and socio-demographic risk factors associated with psychoactive substance use in psychiatric out-patients of a tertiary hospital in Nigeria  

PubMed Central

Background: The co-morbidity of psychoactive substance use and other mental disorders is a major challenge to the management of both conditions in several parts of the world. There is relative dearth of information on co-morbidity and its predictors in Nigeria. This study determined the prevalence and socio-demographic risk factors associated with psychoactive substance use in the psychiatric out-patients of a tertiary hospital in Nigeria. Study Design: A cross-sectional study. Materials and Methods: From routine clinic visits over a 4-month period, each consecutive 4th adult patients (>18 years) who had previously attended the clinic at least for 1 year, completed a socio-demographic and semi-structured drug use questionnaires and interview with the Schedule for Clinical Assessment in Neuropsychiatry (SCAN) to generate substance use diagnosis. Data was analysed using the statistical package for social sciences (SPSS), version 16. Level of significance was set at P < 0.05. Results: The lifetime prevalence for the use of substance was 29.3%, while that for multiple substances was 17.7%. The most commonly used substances were alcohol, cannabis and tobacco and they were also the ones mostly used in combination with one or the other. A total of 10.1% of the patients had a psychoactive substance use disorder. Being male, married with at least primary education and unemployed were significant risk factors for substance use. Conclusion: Psychoactive substance is common among the psychiatric outpatients of the hospital with males, those with formal education, the married and unemployed being at high risk of substance use. PMID:25538362

Okpataku, Christopher Izehinosen; Kwanashie, Helen Ochuko; Ejiofor, Janet Ifeakanwa; Olisah, Victor Obiajulu

2014-01-01

441

Ignition of global wildfires at the Cretaceous/Tertiary boundary.  

PubMed

An impressive amount of evidence supports the proposal of Alvarez et al. that the Cretaceous era was ended abruptly by the impact of a comet or asteroid. The recent discovery of an apparently global soot layer at the Cretaceous/Tertiary boundary indicates that global wildfires were somehow ignited by the impact. Here we show that the thermal radiation produced by the ballistic re-entry of ejecta condensed from the vapour plume of the impact could have increased the global radiation flux by factors of 50 to 150 times the solar input for periods ranging from one to several hours. This great increase in thermal radiation may have been responsible for the ignition of global wildfires, as well as having deleterious effects on unprotected animal life. PMID:11536461

Melosh, H J; Schneider, N M; Zahnle, K J; Latham, D

1990-01-18

442

Tertiary proton diagnostics in future inertial confinement fusion experiments  

SciTech Connect

Recently, it was proposed to use energetic (up to 31 MeV) tertiary protons produced during the final stage of inertial confinement fusion implosions to measure the fuel areal density of compressed deuterium{endash}tritium (DT). The method is based on seeding the fuel with {sup 3}He. The reaction of {sup 3}He ions with the energetic knock-on deuterons, produced via the elastic scattering of 14.1 MeV neutrons, is a source of very energetic protons capable of escaping from very large areal density targets. This work presents results of detailed time-dependent Monte Carlo simulations of the nuclear processes involved in producing and transporting these protons through imploding targets proposed for direct-drive experiments on OMEGA [D. K. Bradley {ital et al.}, Phys. Plasmas {bold 5}, 1870 (1998)] and the National Ignition Facility [S. W. Haan {ital et al.}, Phys. Plasmas {bold 2}, 2480 (1995)]. {copyright} {ital 1998 American Institute of Physics.}

Cremer, S.; Verdon, C.P. [Laboratory For Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)] [Laboratory For Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States); Petrasso, R.D. [Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)] [Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

1998-11-01

443

Mechanoreceptor Cells on the Tertiary Pulvini of Mimosa pudica L.  

PubMed Central

Special red cells were found on the adaxial surface of tertiary pulvini of Mimosa pudica and experiments performed to determine the origin and function of these cells. Using anatomical (light, scanning electron and transmission electron microscopy) and electrophysiological techniques, we have demonstrated that these red cells are real mechanoreceptor cells. They can generate receptor potential following mechanical stimuli and they are in connection with excitable motor cells (through plasmodesmata). We also provide evidence that these red cells are derived from stomatal subsidiary cells and not guard cells. As histochemical studies show red cells contain tannin, which is important in development of action potentials and movements of plants. These cells could be one of unidentified mechanoreceptors of mimosa. PMID:19517007

Világi, Ildikó; Varró, Petra; Kristóf, Zoltán

2007-01-01

444

Ecology and Earth Systems Dynamics for Educators (CI 5540-003) a graduate-level Ecology course designed for pre-and in-service middle and high-school level science teachers and other educators who  

E-print Network

Ecology and Earth Systems Dynamics for Educators (CI 5540-003) ­ a graduate science teachers and other educators who teach the public about ecology Science Reserve, East Bethel, MN · Is on-site housing available? Yes ­ cost

Amin, S. Massoud

445

West Hackberry Tertiary Project. Annual report, September 3, 1995--September 2, 1996  

SciTech Connect

The West Hackberry Tertiary Project is a field test of the concept that air injection can be combined with the Double Displacement Process to produce a tertiary recovery process that is both low cost and economic at current oil prices. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil by gravity drainage. In reservoirs with pronounced bed dip such as those found in West Hackberry and other Gulf Coast salt dome fields, reservoir performance has shown that gravity drainage recoveries average 80% to 90% of the original oil in place while waterdrive recoveries average 50% to 60% of the original oil in place. The target for tertiary oil recovery in the Double Displacement Process is the incremental oil between the 50% to 60% waterdrive recoveries and the 80% to 90% gravity drainage recoveries. In previous field tests, the Double Displacement Process has proven successful in generating tertiary oil recovery. The use of air injection in this process combines the benefits of air`s low cost and universal accessibility with the potential for accelerated oil recovery from the combustion process. If successful, this project will demonstrate that utilizing air injection in the Double Displacement Process will result in an economically viable tertiary process in reservoirs (such as Gulf Coast salt dome reservoirs) where any other tertiary process is presently uneconomic.

Gillham, T.; Cerveny, B.; Turek, E.

1997-05-01

446

West Hackberry Tertiary Project. Technical progress report, October 1--December 31, 1996  

SciTech Connect

The West Hackberry Tertiary Project is a field test of the concept that air injection can be combined with the Double Displacement Process to produce a tertiary recovery process that is both low cost and economic at current oil prices. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil by gravity drainage. In reservoirs with pronounced bed dip such as those found in West hackberry and other Gulf Coast salt dome fields, reservoir performance has shown that gravity drainage recoveries average 80% to 90% of the original oil in place while waterdrive recoveries average 50% to 60% of the original oil in place. The target for tertiary oil recovery in the Double Displacement Process is the incremental oil between the 50% to 60% waterdrive recoveries and the 80% to 90% gravity drainage recoveries. In previous field tests, the Double Displacement Process has proven successful in generating tertiary oil recovery. The use of air injection in this process combines the benefits of air`s low cost and universal accessibility with the potential for accelerated oil recovery from the combustion process. If successful, this project will demonstrate that utilizing air injection in the Double Displacement Process will result in an economically viable tertiary process in reservoirs (such as Gulf Coast salt dome reservoirs) where other tertiary processes are presently uneconomic.

Gillham, T.; Cerveny, B.; Turek, E.

1997-01-14

447

Differences in eighth grade science student and teacher perceptions of students' level of input into academic planning and decision making  

NASA Astrophysics Data System (ADS)

Teachers are expected to improve their planning, instruction, and assessment as they progress through their career. An important component to teachers knowing what to modify in their teaching style is being able to solicit meaningful feedback from students. This mixed-methods study was conducted to provide teachers with a quantitative method to collect data about their teaching using the Constructivist Learning Environment Survey (CLES). Phase 1 allowed students to provide anonymous feedback to their teachers that the teachers could later reflect upon in conjunction with the students' other feedback. Using measures of central tendencies, it was determined that of the five categories of the CLES the area of student negotiation was statistically different from the other categories. While eight teachers had sufficient (n>10) student data to be invited to participate in Phase 2, only five of the teachers choose to participate in a semi-structured interview to further examine the potential differences between teacher and student perception of student negotiation with the curriculum, instruction and assessment that occurs in the classroom. Coding the interview transcripts led to three categories: 1) teaching style (with themes including curriculum, instruction, and assessment, and sub themes of teacher centered and student centered); 2) external pressures (with themes of standards , standardized tests, and socioeconomic conditions); 3) effectiveness of student negotiation (with themes of positive effect or no effect on motivation). The five teachers who participated in Phase 2 had varying levels of awareness and willingness to adjust their classroom curriculum, instruction, and assessment to include student negotiation. All but one teacher, however, saw the value in increasing student negotiation in the classroom and desired to continue to change their teaching to include more student negotiation.

Chapman, Jarrett Michael

448

Isolation and antibiotic susceptibility of E. coli from urinary tract infections in a tertiary care hospital  

PubMed Central

Objective: The study was conducted to isolate and determine the antibiotic resistance in E. coli from urinary tract infections in a tertiary care hospital, Lahore. Methods: Urine samples (n=500) were collected from patients with signs and symptoms of Urinary tract infections. Bacteria were isolated and identified by conventional biochemical profile. Antibiotic resistance pattern of E. coli against different antibiotic was determined by Kirby-Baur method. Results: Bacterial etiological agent was isolated from 402 samples with highest prevalence of E. coli (321, 80%) followed by Staphylococcus aureus (9.4%), Proteus species (5.4%) and Pseudomonas species (5.2%). The E. coli were highly resistant to penicillin (100%), amoxicillin (100%) and cefotaxime (89.7%), followed by intermediate level of resistance to ceftazidime (73.8%), cephradine (73.8%), tetracycline (69.4%), doxycycline (66.6%), augmentin (62.6%), gentamycin (59.8%), cefuroxime (58.2%), ciprofloxacin (54.2%), cefaclor (50%), aztreonam (44.8%), ceftriaxone (43.3%), imipenem (43.3%), and low level of resistance to streptomycin (30%), kanamycin (19.9%), tazocin (14%), amikacin (12.7%) and lowest to norfloxacin (11.2%). Out of 321 E. coli isolates, 261 (81%) were declared as multiple drug resistant and 5 (1.5%) were extensive drug resistant. Conclusion: It is concluded that most of the urinary tract infections in human are caused by multiple drug resistant E. coli. PMID:24772149

Sabir, Sumera; Ahmad Anjum, Aftab; Ijaz, Tayyaba; Asad Ali, Muhammad; ur Rehman Khan, Muti; Nawaz, Muhammad

2014-01-01

449

Prenatal developmental toxicity study of ethyl tertiary-butyl ether in rats.  

PubMed

Ethyl tertiary-butyl ether (ETBE) is commonly used as an oxygenated gasoline additive. In this study, we evaluated its developmental toxicity in rats. ETBE was administered by gavage to 21 or 22 pregnant female Sprague-Dawley rats per group at dose levels of 0,?100,?300 and 1000?mg/kg/day from days 5 through 19 postcoitum to assess its effects on pregnant animals and their embryos and fetuses applied to the OECD testing guideline (no. 414) correspondingly. There were no toxicological effects attributable to ETBE regarding clinical signs, body weight, food intake, necropsy or examination at caesarean section in pregnant animals. There were also no toxicological effects on external, visceral and skeletal examinations of embryos and fetuses. These results indicate that, under the conditions of this study, ETBE had no toxicological effects on pregnant rats or their embryos and fetuses and that the no observed adverse effect level was 1000?mg/kg/day both for pregnant rats and their embryos and fetuses. PMID:23841892

Aso, Sunao; Miyata, Katsumi; Takakura, Saori; Hoshuyama, Satsuki; Muroi, Takako; Kusune, Yuji; Ajimi, Shozo; Furukawa, Kotaro

2014-01-01

450

A one-generation reproductive toxicity study of ethyl tertiary butyl ether in rats.  

PubMed

A one-generation reproductive toxicity study was conducted to evaluate the effects of ethyl tertiary butyl ether (ETBE), a bio-fuel, on reproduction of parental rats, as well as development and growth of their offspring at dose levels of 0, 100, 300 and 1000 mg/kg-d by gavage. No treatment-related changes were observed in either F0 parents or their F1 offspring in the 100 and 300 mg/kg groups in any parameters examined. Some parental animals in the 1000 mg/kg group exhibited transient salivation, possibly a reflex to a bitter taste of ETBE, immediately after dosing, although their body weights, food consumption, reproductive parameters, and gross pathological findings were not affected. Their absolute and relative liver weights increased significantly in the 1000 mg/kg group, suggesting enhanced activities of metabolic enzymes. Pup viability was slightly reduced during the early lactation period in the 1000 mg/kg group. These results lead to the conclusion that the no-observed-adverse-effect-level (NOAEL) of ETBE on both parental rats and their offspring is 300 mg/kg-d under the current study condition. PMID:20438832

Fujii, Sakiko; Yabe, Kaoru; Furukawa, Masatoshi; Matsuura, Masao; Aoyama, Hiroaki

2010-11-01

451

Orbital Cyclicities Above and Below the Cretaceous-Tertiary Boundary, Umbria-Marche Region, Italy  

NASA Technical Reports Server (NTRS)

In the Umbria-Marche region of central Italy, the deep basinal carbonate Scaglia Rossa Formation contains an important sequence of Cretaceous-Tertiary strata including a detailed paleomagnetic record and the distal impactoclastic Cretaceous-Tertiary boundary clay layer. In addition to this significant paleomagnetic and impactoclastic record, the Scaglia Rossa also contains potentially important stratigraphic evidence of relatively long-term oceanic and atmospheric consequences of the Cretaceous-Tertiary bolide catastrophe, which we will describe for the first time herein. Additional information is contained in the original extended abstract.

King, D. T., Jr.; Petruny, L. W.; Rampino, M. R.; Prokoph, A.; Pope, K.; Fischer, A. G.; Montanari, A.; Ocampo, A. C.

2000-01-01

452

Effect of tertiary hydrogens on the stability of an ionic membrane in a chemically aggressive environment  

SciTech Connect

Electrochemical devices often utilize ionic separator membranes. In these applications, high conductivity, high selectivity and good durability in chemically aggressive environments are needed. Purpose of this program is to develop improved ionic membranes for these environments and to evaluate their performance and stability. Degradation of the active site has tentatively been attributed to the presence of tertiary hydrogens which are susceptible to oxidative attack. In this study the effect of replacing the tertiary hydrogen by a methyl group was evaluated. Both model compounds and radiation grafted membranes were examined. Results show that membrane stability can be substantially increased by elimination of tertiary hydrogens.

Assink, R.A.; Arnold, C. Jr.; Hollandsworth, R.P.

1987-10-18

453

Stratigraphy and characteristic mollusks of the Pamunkey Group (lower Tertiary) and the Old Church Formation of the Chesapeake Group; Virginia Coastal Plain  

USGS Publications Warehouse

Along the Pamunkey River and its tributaries can be found a very complete, well-preserved, Tertiary stratigraphic record that reflects the sea-level changes as well as the local tectonic history of the central Virginia Coastal Plain. Using this record, I have described the lower Tertiary units and proposed a sequential model for their occurrence. Sediments examined in this study range in age from early Paleocene to latest Oligocene or earliest Miocene. Upper Tertiary units are described where they occur in the same sections with the lower Tertiary beds. The Brightseat Formation (lower Paleocene), Aquia Formation (upper Paleocene), Marlboro Clay (upper Paleocene), Nanjemoy Formation (lower Eocene), Piney Point Formation (middle Eocene) and Old Church Formation (new unit, upper Oligocene and lower Miocene) were studied. The definitions of the Piscataway and Paspotansa Members of the Aquia are amended, and a lectostratotype (principal reference section) is designated for those units as well as the Aquia on the Potomac River just below the mouth of Aquia Creek. A lectostratotype section is also designated for the Nanjemoy and its two members, the Potapaco and the Woodstock. That section is on the Potomac above Popes Creek. Beds assigned to the Piney Point and Old Church Formations, previously known only in the subsurface, crop out extensively on the Pamunkey River. A hypostratotype (reference section) is selected for the Piney Point Formation on the Pamunkey River at Horseshoe. The Old Church Formation (named herein) is included in the Chesapeake Group. Areal extent of the stratigraphic units was determined by correlation of outcropping beds on the Pamunkey, Patuxent, Potomac, Rappahannock, Mattaponi, Chickahominy, and James Rivers supplemented by well data. Comparisons of the onlap histories of the Salisbury, Albemarle, and Charleston Embayments indicate a number of simultaneous transgressive events implying global sea-level rises. More restricted transgressions appear to be the result of local downwarping.

Ward, Lauck W.

1985-01-01

454

Correlation between the radiological observation of isolated tertiary waves on an esophagram and findings on high-resolution esophageal manometry.  

PubMed

Barium esophagrams are a frequently performed test, and radiological observations about potential abnormal esophageal motility, such as tertiary contractions, are commonly reported. We sought to assess the correlation between tertiary waves, and in particular isolated tertiary waves, on esophagrams and findings on non-synchronous high-resolution esophageal manometry. We retrospectively reviewed reports of esophagrams performed at a tertiary referral center and identified patients in whom tertiary waves were observed and a high-resolution esophageal manometry had been performed. We defined two groups; group 1 was defined as patients with isolated tertiary waves, whereas group 2 had tertiary waves and evidence of achalasia or an obstructing structural abnormality on the esophagram. We collected data on demographics, dysphagia score, associated findings on esophagram, and need for intervention. We reviewed the reports of 2100 esophagrams of which tertiary waves were noted as an isolated abnormality in 92, and in association with achalasia or a structural obstruction in 61. High-resolution manometry was performed in 17 patients in group 1, and five had evidence of a significant esophageal motility disorder and 4 required any intervention. Twenty-one patients in group 2 underwent manometry, and 18 had a significant esophageal motility disorder. An isolated finding of tertiary waves on an esophagram is rarely associated with a significant esophageal motility disorder that requires intervention. All patients with isolated tertiary waves who required intervention had a dysphagia to liquids. Tertiary contractions, in the absence of dysphagia to liquids, indicate no significant esophageal motility disorder. PMID:25327483

Halland, M; Ravi, K; Barlow, J; Arora, A

2014-10-20

455

A subchronic (180-day) oral toxicity study of ethyl tertiary-butyl ether, a bioethanol, in rats.  

PubMed

A subchronic (180-day) toxicity study was conducted to evaluate the effects of ethyl tertiary-butyl ether (ETBE), a biomass fuel, in male and female rats. ETBE was administered at dose levels of 0, 5, 25, 100 and 400 mg/kg/body weight (b.w.)/day by gavage. No treatment-related adverse effects were observed at 5, 25 or 100 mg/kg. Centrilobular hypertrophy of hepatocytes was observed in males and females and their relative liver weights were increased, suggesting enhanced metabolic activity. From these results, we concluded that the no observed adverse effect level of ETBE was 100 mg/kg b.w./day under the conditions tested. PMID:24252074

Miyata, Katsumi; Koga, Takayuki; Aso, Sunao; Hoshuyama, Satsuki; Ajimi, Syozo; Furukawa, Kotaro

2014-07-01

456

Aurum Science: Environmental Science Full Curriculum  

NSDL National Science Digital Library

Aurum Science is a collection of materials to support Environmental Science classes. It includes a complete set of lectures, worksheets, activities, and labs for a high school or introductory level college course.

Dauray, James

2014-04-04

457

Political science focuses on the theory and practice of government and politics at the local, state, national, and international levels. We are dedicated to developing  

E-print Network

Political science focuses on the theory and practice of government and politics at the local, state received a top 20 rating in the Princeton Review 2010 list of "great schools to study political science typically develop expertise in at least two of the five major fields in political science: political theory

Kaminsky, Werner

458

CAPTEM concerns about the Planetary Science Division's restructuring of R&A Given current funding levels, we recognize that the number of existing R&A programs  

E-print Network

CAPTEM concerns about the Planetary Science Division's restructuring of R&A programs: Given current examine each of the 20 existing programs to see whether its goals are aligned with the planetary science return missions (such as OSIRIS-Rex and Mars sample return). The five planetary science questions do

Rathbun, Julie A.

459

Resources for Eye Care at Secondary and Tertiary Level Government Institutions in Saudi Arabia  

PubMed Central

Purpose: To evaluate the number of healthcare personnel and equipment resources for eye care at government institutions in different administrative zones of the Kingdom of Saudi Arabia (KSA) and to recommend measures for increasing resources to address deficiencies. Materials and Methods: Data on resources (personnel and equipment) for eye care were collected from all governmental eye units in 2012. The data was regrouped by zones and administrative areas. The mid-2012 population projections were used to calculate the ophthalmologist to population ratio and optometrist to population ratio. The equipment available for eye care was reviewed. Results: All 60 institutions in 13 administrative areas and five zones of KSA participated in this study. There were 407 ophthalmologists and 147 optometrists. The ophthalmologist to population ratio was 1:43,000 (1:12,900 in the northern zone to 1:80,300 in the western zone). By 2015, 700 ophthalmologists will be required, and by 2020, 1,100 ophthalmologists will be required. The optometrist to population ratio was 1:95,000 (1:34,100 in the northern zone to 1:146,700 in the western zone). Nearly 2,800 and 4,400 allied eye care personnel will be needed by 2015 and 2020. Diagnostic and treatment equipment such as lasers, electrophysiologic and ultrasound equipment, and fundus cameras were not available at all institutions. Conclusions: Data from the private sector need to be included to draw conclusions on the human resource index for eye care in the Kingdom. An unequal distribution of resources in different zones and administrative areas requires attention. Better utilization of available resources is recommended before fulfilling the demand for additional resources. PMID:24791105

Al Motowa, Saeed; Khandekar, Rajiv; Al-Towerki, Abdulelah

2014-01-01

460

Approach to Mathematics in Textbooks at Tertiary Level--Exploring Authors' Views about Their Texts  

ERIC Educational Resources Information Center

The aim of this article is to present and discuss some results from an inquiry into mathematics textbooks authors' visions about their texts and approaches they choose when new concepts are introduced. Authors' responses are discussed in relation to results about students' difficulties with approaching calculus reported by previous research. A…

Randahl, Mira

2012-01-01

461

Reflection on Training, Experience, and Introductory Statistics: A Mini-Survey of Tertiary Level Statistics Instructors  

ERIC Educational Resources Information Center

Instructors of statistics who teach non-statistics majors possess varied academic backgrounds, and hence it is reasonable to expect variability in their content knowledge, and pedagogical approach. The aim of this study was to determine the specific course(s) that contributed mostly to instructors' understanding of statistics. Courses reported…

Hassad, Rossi A.

2006-01-01

462

Awareness, perceptions and knowledge of strabismus among patients visiting a tertiary eye clinic in Southwest Nigeria.  

PubMed

The purpose of this study was to assess the perceptions, knowledge of the causes, implications and treatment of strabismus in a black population. This was a descriptive cross-sectional study utilizing a total sampling technique. Face-to-face interviews were performed using a structured questionnaire. Socio-demographic characteristics, awareness, perceived causes, effect and treatment of squint were investigated. Data was analysed using descriptive and inferential (bivariate and binary regression) analysis. A total of 405 respondents (49.6 % male, 50.4 % female) were interviewed. Ages ranged from 11 ± 90 years (mean 41.26 ± 19.00). Modal age group was 17-44 (56 %). Levels of education showed that 22.0 % had no education, while primary, secondary and tertiary levels were 12.6, 31.6 and 33.8 %, respectively. Approximately 75 % of patients were aware of strabismus. Perceived causes were unknown to 53 % while 18.0 and 12 % mentioned eye disease and congenital-related, respectively. There was no knowledge of treatment in 54 % of patients, while 21 and 25 % knew about medical and surgical treatment, respectively. The effects on social and family life were stigmatization/social misfit (23 %), psychosocial/self pity/depression/inferiority complex (88 %), burden (economic/time) (7 %), and poor cosmesis (5 %). Females were significantly more aware than males (p = 0.043, OR 0.6, CI 0.399-0.986). Age (p = 0.187) and level of education (p = 0.321) had no significant relationship with the levels of awareness. Respondents who had no education were 1.25 times less likely to be aware of squint than those who had education (OR 0.8, CI 0.693-1.642). The awareness of the cause, effects and treatment of strabismus is poor in this population. Females were more aware than males. PMID:24442764

Isawumi, Michaeline A; Ulaikere, Mildred; Adejumo, Olubusayo O; Adebayo, Modupe; Kekunnaya, Ramesh

2014-10-01

463

Ethyl tertiary-butyl ether: a toxicological review.  

PubMed

A number of oxygenated compounds (oxygenates) are available for use in gasoline to reduce vehicle exhaust emissions, reduce the aromatic compound content, and avoid the use of organo-lead compounds, while maintaining high octane numbers. Ethyl tertiary-butyl ether (ETBE) is one such compound. The current use of ETBE in gasoline or petrol is modest but increasing, with consequently similar trends in the potential for human exposure. Inhalation is the most likely mode of exposure, with about 30% of inhaled ETBE being retained by the lungs and distributed around the body. Following cessation of exposure, the blood concentration of ETBE falls rapidly, largely as a result of its metabolism to tertiary-butyl alcohol (TBA) and acetaldehyde. TBA may be further metabolized, first to 2-methyl-1,2-propanediol and then to 2-hydroxyisobutyrate, the two dominant metabolites found in urine of volunteers and rats. The rapid oxidation of acetaldehyde suggests that its blood concentration is unlikely to rise above normal as a result of human exposure to sources of ETBE. Single-dose toxicity tests show that ETBE has low toxicity and is essentially nonirritant to eyes and skin; it did not cause sensitization in a maximization test in guinea pigs. Neurological effects have been observed only at very high exposure concentrations. There is evidence for an effect of ETBE on the kidney of rats. Increases in kidney weight were seen in both sexes, but protein droplet accumulation (with alpha(2u)-globulin involvement) and sustained increases in cell proliferation occurred only in males. In liver, centrilobular necrosis was induced in mice, but not rats, after exposure by inhalation, although this lesion was reported in some rats exposed to very high oral doses of ETBE. The proportion of liver cells engaged in S-phase DNA synthesis was increased in mice of both sexes exposed by inhalation. ETBE has no specific effects on reproduction, development, or genetic material. Carcinogenicity studies have been conducted with ETBE, TBA, and ethanol (included in this review as an endogenous precursor of acetaldehyde in the absence of TBA). A single experiment with ETBE in rats and several experiments with ethanol in rats and mice were not considered adequate for an evaluation of ETBE carcinogenicity. In male rats only, TBA induced alpha(2u)-globulin nephropathy-related renal tubule adenomas. These are generally considered to have no human relevance. In addition, increases in thyroid follicular cell adenoma incidence were associated with TBA treatment in female mice. This result lacks independent confirmation and is not supported by experiments in which similar or higher internal doses of TBA were delivered. PMID:17453936

McGregor, Douglas

2007-05-01

464

Tertiary surgery for complicated repair of esophageal atresia.  

PubMed

Aim?The ideal repair of esophageal atresia (EA) is primary anastomosis with closure of the fistula if present. Long gap or local circumstances prompt other procedures that occasionally lead to disastrous complications. The aim of this study was to analyze the management of these complications in a tertiary referral center. Patients and Methods?A retrospective review of patients treated for EA between 1993 and 2013 was conducted. Both the patients were primarily treated by us, and referrals from elsewhere after two or more failed operations were included. Results?In total, 23 patients were included (3/176 cases of EA treated primarily by us and 20 referrals). Of the 23 patients, 6 had type I EA, 15 type III (four long gaps), 1 type IV, and 1 type V. Cardiac anomalies were associated in seven cases, duodenal atresia in three, and Down syndrome in two patients. Primary anastomosis was initially achieved in 12 patients. Primary or secondary Foker lengthening was used in seven cases. The causes of the failure were anastomotic leaks in nine, unmanageable strictures in seven, and refistulization in five patients. These patients required 66 reoperations (median of 3 [2-7]) before inclusion in the study. Radical tertiary treatment consisted of 15 esophageal replacements (11 colonic grafts and 4 gastric pull-ups), and 1 esophageal-gastric disconnection. Five patients previously treated with esophageal replacement and referred for graft problems required 13 interventions. Two families did not give consent for one replacement and one disconnection. Complications appeared in 12 patients, and 9 additional operations were required in 7 patients. With a follow-up of 31 months (range, 4-139 months) 15 patients take all their meals per os, 5 occasionally use the gastrostomy, and 2 and 1 are fed exclusively via gastrostomy or jejunostomy. All tracheoesophageal fistulas were closed, but 15 cases are below p3 for weight and 12 for height. Three patients (13%) ultimately died 32 months (range, 9-56 months) after the first operation (due to aspiration in one, and for causes unrelated to it in the other two [tracheostomy obstruction and Guillain-Barré syndrome]). Conclusions?When repeated complications appear after EA repair, radical surgical attitudes may be justified. If esophageal continuity cannot be reestablished, the native esophagus may have to be discarded and replaced. Many complications should be expected, but the end result can be good. These patients should be referred to centers with large experience in the management of this complex condition. PMID:25144352

Ortiz, Ruben; Galán, Alba Sánchez; Martinez, Leopoldo; Dominguez, Eva; Hernández, Francisco; Santamaria, Manuel Lopez; Tovar, Juan Antonio

2015-02-01

465

Educational Marketing: A Review and Implications for Supporting Practice in Tertiary Education  

ERIC Educational Resources Information Center

This article reviews the existing educational marketing literature in the leading tertiary educational management journals. A discussion of the implications for supporting practitioners in non-university settings is presented. (Contains 1 table.)

Stachowski, Christopher Allen

2011-01-01

466

Cultural capital and distinction : Malaysian students and recent graduates of UK international tertiary education   

E-print Network

This thesis explores the role of foreign cultural capital, that is, Western knowledge, skills, dispositions and qualifications obtained through various modes of UK international tertiary education in facilitating social ...

Sin, I Lin

2014-07-01

467

Stochastic Programming Approach to Hydraulic Fracture Design for the Lower Tertiary Gulf of Mexico  

E-print Network

.......................................................................................... 1 Deep-water Lower Tertiary Background ............................................. 3 Research Objectives ............................................................................. 7 Literature Review... ....................................... 47 Finite Conductivity Fracture Approximation ..................................... 52 Proppant Allocation in Multilayer Reservoirs .................................... 53 vi IV STOCHASTIC OPTIMIZATION...

Podhoretz, Seth

2013-07-27

468

Tertiary flow relations for compression and shear components in combined stress tests on ice  

Microsoft Academic Search

The attainment of tertiary flow in ice involves the nonlinear response to the combination of applied stresses and the alteration\\u000a of both the ice crystals and the polycrystalline aggregate. Tertiary flow rates for individual component strain rates from\\u000a a series of ice deformation experiments under combined shear and compression stresses are presented, and the departure from\\u000a the predictions of isotropic

Roland C. Warner; T. Jacka; Li Jun; W. Budd

469

West Hackberry Tertiary Project. Annual report, September 3, 1997--September 2, 1998  

SciTech Connect

The following report is the Project Management Plan for the fifth year of the West Hackberry Tertiary Project. The West Hackberry Tertiary Project is one of four mid-term projects selected by the United States Department of Energy (DOE) as part of the DOE`s Class 1 Program for the development of advance recovery technologies in fluvial dominated deltaic reservoirs. The West Hackberry Tertiary Project is a field test of the idea that air injection can be combined with the Double Displacement Process to produce a low cost tertiary recovery process which is economic at current oil prices. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil by gravity drainage. The Double Displacement Process is based upon the concept that in fields such as West Hackberry waterdrive recoveries are typically 50%-60% of the original oil in place while gravity drainage recoveries average 80%-90% of the original oil in place. Therefore, by injecting a gas into a watered out reservoir, a gas cap will form an additional oil can be recovered due to gravity drainage. Although the Double Displacement Process has been shown to be successful in recovering tertiary oil in other fields, this project will be the first to utilize air injection in the Double Displacement Process. The use of air injection in this process combines the benefits of air`s low cost and universal accessibility with the potential for accelerated oil recovery due to the combustion process. If successful, this project will demonstrate that the use of air injection in the Double Displacement Process will result in an economically viable tertiary process in reservoirs where tertiary oil recovery is presently uneconomical.

Gillham, T.H.

1997-09-10

470

Peracetic acid (PAA) disinfection of primary, secondary and tertiary treated municipal wastewaters  

Microsoft Academic Search

The efficiency of peracetic acid (PAA) disinfection against enteric bacteria and viruses in municipal wastewaters was studied in pilot-scale. Disinfection pilot-plant was fed with the primary or secondary effluent of Kuopio municipal wastewater treatment plant or tertiary effluent from the pilot-scale dissolved air flotation (DAF) unit. Disinfectant doses ranged from 2 to 7mg\\/l PAA in the secondary and tertiary effluents,

J. Koivunen; H. Heinonen-Tanski

2005-01-01

471

Science Project  

NSDL National Science Digital Library

The Science Project website welcomes you to "the world's largest web site for Science Project ideas, information and support." Students can search for ideas by level: primary (e.g. Make a Volcano), elementary (e.g. Fluorescent Lights), intermediate (e.g. pendulums), and senior (e.g. Study of efficient home insulation). Senior project ideas cover the following topic areas: Biology, Engineering, Physical Science, Earth Science/Meteorology, Environmental Science, Computer Science, and Chemistry. The ideas are accessible for free without registration, but "only members can get support and access the members section for more project details." (Unfortunately, this does favor those able to pay -- Basic membership is $25/year and Advanced membership is $150/year, but a trial membership for 90 days is $10.) Opportunities for teachers, scientists and schools are also described within Membership Info.

472

Science Outreach Science Outreach  

E-print Network

program. Volunteers can help your school with science fair projects and conducting science activitiesScience Outreach Science Outreach AT SFU'S FACULTY OF SCIENCE OUR PASSION IS SCIENCE EDUCATION At SFU's Faculty of Science our passion is science education #12;coming sooncoming soon The Trottier

473

Candidaemia in a Polish tertiary paediatric hospital, 2000 to 2010.  

PubMed

Data on the epidemiology of invasive Candida infections in paediatric patients in Europe are still limited. The aim of this retrospective study was to analyse the epidemiology of candidaemia in a tertiary paediatric hospital in Poland from 2000 to 2010. Using microbiological records, a total of 118 episodes of candidaemia were identified in 114 children, with an annual incidence of 0.35 episodes/1000 discharges. The highest incidences were found in the medical intensive care unit (5.28), and in neonatal intensive care (1.47). The mortality rate was 8.5%. Candida albicans and C. parapsilosis were the most prevalent species (39.8% and 35.6% respectively). The prevalence of non-albicans species increased from 12.5% in 2000 to 70% in 2010. No differences were found between C. albicans and C. non-albicans episodes in terms of demographics, risk factors or mortality. The highest resistance rates (overall 7.6%) were observed for fluconazole (4.3% in C. albicans, 7.1% in C. parapsilosis and 13.8% in other Candida species). Resistance to amphotericin B (2.5%) was limited to non-albicans isolates. The dynamic changes in species distribution and increasing resistance of fungal pathogens confirm the importance of epidemiological surveillance. PMID:23834472

Dzierzanowska-Fangrat, Katarzyna; Romanowska, Ewa; Gryniewicz-Kwiatkowska, Olga; Migda?, Marek; Witulska, Katarzyna; Ry?ko, Józef; Kalici?ski, Piotr; Ksi??yk, Janusz; Nadkowska, Paulina; Dzierzanowska, Danuta

2014-02-01

474

Epidemiology of Pseudomonas aeruginosa in a tertiary referral teaching hospital.  

PubMed

A genotypically indistinguishable strain of Pseudomonas aeruginosa (Australian epidemic strain III: AES III) has previously been found in a proportion of adults with cystic fibrosis (CF) in Tasmania, Australia. The aim of this study was to identify a source of these infections within the major tertiary refer