practical formats suitable: Topics by Science.gov

Sample records for practical formats suitable

A practical guide to assessing clinical decision-making skills using the key features approach.

PubMed

Farmer, Elizabeth A; Page, Gordon

2005-12-01

This paper in the series on professional assessment provides a practical guide to writing key features problems (KFPs). Key features problems test clinical decision-making skills in written or computer-based formats. They are based on the concept of critical steps or 'key features' in decision making and represent an advance on the older, less reliable patient management problem (PMP) formats. The practical steps in writing these problems are discussed and illustrated by examples. Steps include assembling problem-writing groups, selecting a suitable clinical scenario or problem and defining its key features, writing the questions, selecting question response formats, preparing scoring keys, reviewing item quality and item banking. The KFP format provides educators with a flexible approach to testing clinical decision-making skills with demonstrated validity and reliability when constructed according to the guidelines provided.
Metrics in Education - Resource Materials.

ERIC Educational Resources Information Center

New York State Education Dept., Albany. Div. of Curriculum Development.

This publication contains materials suitable for reproduction as transparencies or as classroom handouts. These metric materials may be used in a variety of occupational and practical arts courses. The format of the materials is in large print, some with humorous drawing; details of drawings and charts are easy to read. Introductory pages deal…
GuideLine Interchange Format (GLIP): Extensions and Practical Applications

DTIC Science & Technology

2000-09-01

Others have also studied and used GLIF as well6-9 . We chose this formalism because it can be easily (and exactly) represented in a flowchart , a...benefit from guidelines in different formats (algorithms, flowcharts , written text). Guidelines in diagrammatic form such as algorithms are useful for...as long as a task is performed, the GL suggests the next steps. This can be a suitable modality for beginners . On the contrary, it can be "silent
Optimum Guidance Law and Information Management for a Large Number of Formation Flying Spacecrafts

NASA Astrophysics Data System (ADS)

Tsuda, Yuichi; Nakasuka, Shinichi

In recent years, formation flying technique is recognized as one of the most important technologies for deep space and orbital missions that involve multiple spacecraft operations. Formation flying mission improves simultaneous observability over a wide area, redundancy and reconfigurability of the system with relatively small and low cost spacecrafts compared with the conventional single spacecraft mission. From the viewpoint of guidance and control, realizing formation flying mission usually requires tight maintenance and control of the relative distances, speeds and orientations between the member satellites. This paper studies a practical architecture for formation flight missions focusing mainly on guidance and control, and describes a new guidance algorithm for changing and keeping the relative positions and speeds of the satellites in formation. The resulting algorithm is suitable for onboard processing and gives the optimum impulsive trajectory for satellites flying closely around a certain reference orbit, that can be elliptic, parabolic or hyperbolic. Based on this guidance algorithm, this study introduces an information management methodology between the member spacecrafts which is suitable for a large formation flight architecture. Routing and multicast communication based on the wireless local area network technology are introduced. Some mathematical analyses and computer simulations will be shown in the presentation to reveal the feasibility of the proposed formation flight architecture, especially when a very large number of satellites join the formation.
Influence of irrigation method and container type on Northern red oak seedling growth and media electrical conductivity

Treesearch

Anthony S. Davis; Douglass F. Jacobs; Ronald P. Overton; R. Kasten Dumroese

2008-01-01

Container production of hardwood seedlings has not been extensively practiced. Efficient nursery production of hardwood seedlings in containers can be limited by formation of a broad foliar canopy, which limits irrigation uniformity. This study was established to investigate suitability of subirrigation, a method of irrigating seedlings from the container base that...
DOE Office of Scientific and Technical Information (OSTI.GOV)

Michelsen, H. A.; Schulz, C.; Smallwood, G. J.

The understanding of soot formation in combustion processes and the optimization of practical combustion systems require in situ measurement techniques that can provide important characteristics, such as particle concentrations and sizes, under a variety of conditions. Of equal importance are techniques suitable for characterizing soot particles produced from incomplete combustion and emitted into the environment. Also, the production of engineered nanoparticles, such as carbon blacks, may benefit from techniques that allow for online monitoring of these processes.
Social justice in education: how the function of selection in educational institutions predicts support for (non)egalitarian assessment practices

PubMed Central

Autin, Frédérique; Batruch, Anatolia; Butera, Fabrizio

2015-01-01

Educational institutions are considered a keystone for the establishment of a meritocratic society. They supposedly serve two functions: an educational function that promotes learning for all, and a selection function that sorts individuals into different programs, and ultimately social positions, based on individual merit. We study how the function of selection relates to support for assessment practices known to harm vs. benefit lower status students, through the perceived justice principles underlying these practices. We study two assessment practices: normative assessment—focused on ranking and social comparison, known to hinder the success of lower status students—and formative assessment—focused on learning and improvement, known to benefit lower status students. Normative assessment is usually perceived as relying on an equity principle, with rewards being allocated based on merit and should thus appear as positively associated with the function of selection. Formative assessment is usually perceived as relying on corrective justice that aims to ensure equality of outcomes by considering students’ needs, which makes it less suitable for the function of selection. A questionnaire measuring these constructs was administered to university students. Results showed that believing that education is intended to select the best students positively predicts support for normative assessment, through increased perception of its reliance on equity, and negatively predicts support for formative assessment, through reduced perception of its ability to establish corrective justice. This study suggests that the belief in the function of selection as inherent to educational institutions can contribute to the reproduction of social inequalities by preventing change from assessment practices known to disadvantage lower-status student, namely normative assessment, to more favorable practices, namely formative assessment, and by promoting matching beliefs in justice principles. PMID:26097460
Social justice in education: how the function of selection in educational institutions predicts support for (non)egalitarian assessment practices.

PubMed

Autin, Frédérique; Batruch, Anatolia; Butera, Fabrizio

2015-01-01

Educational institutions are considered a keystone for the establishment of a meritocratic society. They supposedly serve two functions: an educational function that promotes learning for all, and a selection function that sorts individuals into different programs, and ultimately social positions, based on individual merit. We study how the function of selection relates to support for assessment practices known to harm vs. benefit lower status students, through the perceived justice principles underlying these practices. We study two assessment practices: normative assessment-focused on ranking and social comparison, known to hinder the success of lower status students-and formative assessment-focused on learning and improvement, known to benefit lower status students. Normative assessment is usually perceived as relying on an equity principle, with rewards being allocated based on merit and should thus appear as positively associated with the function of selection. Formative assessment is usually perceived as relying on corrective justice that aims to ensure equality of outcomes by considering students' needs, which makes it less suitable for the function of selection. A questionnaire measuring these constructs was administered to university students. Results showed that believing that education is intended to select the best students positively predicts support for normative assessment, through increased perception of its reliance on equity, and negatively predicts support for formative assessment, through reduced perception of its ability to establish corrective justice. This study suggests that the belief in the function of selection as inherent to educational institutions can contribute to the reproduction of social inequalities by preventing change from assessment practices known to disadvantage lower-status student, namely normative assessment, to more favorable practices, namely formative assessment, and by promoting matching beliefs in justice principles.
Backing the Actor as Agent in Discipline Formation: An Example of the "Secondary Disciplinarization" of the Educational Sciences, Based on the Networks of Ovide Decroly (1901-1931)

ERIC Educational Resources Information Center

Van Gorp, Angelo; Depaepe, Marc; Simon, Frank

2004-01-01

The works of the Belgian neurologist and educationist Ovide Decroly (1871-1932) extended over the medical and pedagogical fields as well as both the practical-professional and the theoretical-disciplinary fields. For this reason, Decroly seemed to be a suitable starting point for a contribution to the problem outlined by Hofstetter and Schneuwly…
Development and evaluation of habitat suitability criteria for use in the instream flow incremental methodology

USGS Publications Warehouse

Bovee, Ken D.

1986-01-01

The Instream Flow Incremental Methodology (IFIM) is a habitat-based tool used to evaluate the environmental consequences of various water and land use practices. As such, knowledge about the conditions that provide favorable habitat for a species, and those that do not, is necessary for successful implementation of the methodology. In the context of IFIM, this knowledge is defined as habitat suitability criteria: characteristic behavioral traits of a species that are established as standards for comparison in the decision-making process. Habitat suitability criteria may be expressed in a variety of types and formats. The type, or category, refers to the procedure used to develop the criteria. Category I criteria are based on professional judgment, with little or no empirical data. Category II criteria have as their source, microhabitat data collected at locations where target organisms are observed or collected. These are called “utilization” functions because they are based on observed locations that were used by the target organism. These functions tend to be biased by the environmental conditions that were available to the fish or invertebrates at the time they were observed. Correction of the utilization function for environmental availability creates category III, or “preference” criteria, which tend to be much less site specific than category II criteria. There are also several ways to express habitat suitability in graphical form. The binary format establishes a suitable range for each variable as it pertains to a life stage of interest, and is presented graphically as a step function. The quality rating for a variable is 1.0 if it falls within the range of the criteria, and 0.0 if it falls outside the range. The univariate curve format established both the usable range and the optimum range for each variable, with conditions of intermediate usability expressed along the portion between the tails and the peak of the curve. Multivariate probability density functions, which can be used to compute suitability for several variables simultaneously, are conveyed as three dimensional figures with suitability on the z-axis, and two independent variables on the x-y plane. These functions are useful for incorporating interactive terms between two or more variable. Such interactions can also be demonstrated using conditional criteria, which are stratified by cover type or substrate size. Conditional criteria may be of any category or format, but are distinguishable by two or more sets of functional relationships for each life stage.
Can Multiple Cropping Help to Avoid the Impacts of Heat Extremes? The Case of Winter Wheat/Soybean Double Cropping in the United States

NASA Astrophysics Data System (ADS)

Seifert, C.; Lobell, D. B.

2014-12-01

In adapting U.S. agriculture to the climate of the 21st century, multiple cropping presents a unique opportunity to help offset projected negative trends in agricultural production while moving critical crop yield formation periods outside of the hottest months of the year. Critical constraints on this practice include moisture availability, and, more importantly, growing season length. We review evidence that this last constraint has decreased in the previous quarter century, allowing for more winter wheat/soybean double cropping in previously phenologically constrained areas. We also carry this pattern forward to 2100, showing a 126% to 211% increase in the area phenologically suitable for double cropping under the RCP45 and RCP85 scenarios respectively. These results suggest that climate change will relieve phenological constraints on wheat-soy double cropping systems over much of the United States, changing production patterns and crop rotations as areas become suitable for the practice.
Laser-induced incandescence: Particulate diagnostics for combustion, atmospheric, and industrial applications

DOE PAGES

Michelsen, H. A.; Schulz, C.; Smallwood, G. J.; ...

2015-09-09

The understanding of soot formation in combustion processes and the optimization of practical combustion systems require in situ measurement techniques that can provide important characteristics, such as particle concentrations and sizes, under a variety of conditions. Of equal importance are techniques suitable for characterizing soot particles produced from incomplete combustion and emitted into the environment. Also, the production of engineered nanoparticles, such as carbon blacks, may benefit from techniques that allow for online monitoring of these processes.
Measuring comfort in caregivers and patients during late end-of-life care.

PubMed

Novak, B; Kolcaba, K; Steiner, R; Dowd, T

2001-01-01

The purpose of this study was to test several formats of end-of-life comfort instruments for patients and closely involved caregivers. Kolcaba's Comfort Theory was the theoretical framework utilized. Different response formats for two end-of-life (EOL) comfort questionnaires (for patients and caregivers, respectively), and horizontal and vertical visual analog scales for total comfort (TC) lines were compared in two phases. Evaluable data were collected from both members of 38 patient-caregiver dyads in each phase. Suitable dyads were recruited from two hospice agencies in northeastern Ohio. Cronbach's alpha for the EOL comfort questionnaire (six response Likert-type format) tested during phase I for patients was .98 and for caregivers was .97. Test-retest reliability for the vertical TC line tested during phase I for patients was .64 and for caregivers was .79. The implications of this study for nursing practice and research are derived from the American Nursing Association (ANA) position statement about EOL care, which states that comfort is the goal of nursing for this population. These instruments will be useful for assessing comfort in actively dying patients and comfort of their caregivers as well as for developing evidence-based practice for this population.
Carbon Capture and Storage, 2008

ScienceCinema

None

2017-12-09

The U.S. Department of Energy is researching the safe implementation of a technology called carbon sequestration, also known as carbon capture and storage, or CCS. Based on an oilfield practice, this approach stores carbon dioxide, or CO2 generated from human activities for millennia as a means to mitigate global climate change. In 2003, the Department of Energys National Energy Technology Laboratory formed seven Regional Carbon Sequestration Partnerships to assess geologic formations suitable for storage and to determine the best approaches to implement carbon sequestration in each region. This video describes the work of these partnerships.
Picosecond laser welding of optical to metal components

NASA Astrophysics Data System (ADS)

Carter, Richard M.; Troughton, Michael; Chen, Jinanyong; Elder, Ian; Thomson, Robert R.; Lamb, Robert A.; Esser, M. J. Daniel; Hand, Duncan P.

2016-03-01

We report on practical, industrially relevant, welding of optical components to themselves and aluminum alloy components. Weld formation is achieved through the tight focusing of a 5.9ps, 400kHz Trumpf laser operating at 1030nm. By selecting suitable surface preparation, clamping and laser parameters, the plasma can be confined, even with comparatively rough surfaces, by exploiting the melt properties of the glass. The short interaction time allows for a permanent weld to form between the two materials with heating limited to a region ~300 µm across. Practical application of these weld structures is typically limited due to the induced stress within the glass and, critically, the issues surrounding post-weld thermal expansion. We report on the measured strength of the weld, with a particular emphasis on laser parameters and surface preparation.
Construction and Validation of a Professional Suitability Scale for Social Work Practice

ERIC Educational Resources Information Center

Tam, Dora M. Y.; Coleman, Heather

2009-01-01

This article reports on the construction and validation of a professional suitability scale, designed for assessing students' suitability for social work practice. Data were collected from 188 field supervisors who provided usable questionnaires, representing a response rate of 74%. Construct validation by exploratory factor analysis identified a…
Unexpected promotion of PCDD/F formation by enzyme-aided Cl2 bleaching in non-wood pulp and paper mill.

PubMed

Fang, Liping; Zheng, Minghui; Liu, Guorui; Zhao, Yuyang; Liu, Wenbin; Huang, Linyan; Guo, Li

2017-02-01

Enzyme-aided Cl 2 bleaching is widely considered as promising replacements for conventional Cl 2 bleaching in wood pulp and paper mills. However, the effects of using enzyme-aided bleaching on the formation of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the non-wood pulp and paper mills are unclear. A field study was performed to investigate PCDD/F formation when enzyme-aided Cl 2 bleaching was used to replace conventional Cl 2 bleaching in non-wood pulp and paper mills. Unexpectedly, the PCDD/F toxic equivalents (TEQs) in solid samples were higher when using enzyme-aided bleaching (0.49-5.4 pg TEQ/g) than that using conventional Cl 2 bleaching (0.15-2.44 pg TEQ/g). Large amounts of octachlorodibenzo-p-dioxin were formed during the enzyme-aided bleaching process. This could have been because enzyme strongly promoted the release of organic molecules bound to lignin and thus accelerated the formation of octachlorodibenzo-p-dioxin through organic molecular precursors. Although enzyme-aided Cl 2 bleaching was previously considered to be efficient for reducing PCDD/F releases and to be the best available technologies and best environmental practices for wood pulp and paper mills, the results obtained in this study suggested the necessity and urgency to evaluate the suitability of enzyme-aided Cl 2 bleaching for non-wood pulp and paper mills that intensively practiced in developing countries. Copyright © 2016 Elsevier Ltd. All rights reserved.
Comparison of Brief Summary Formats Through a Health Literacy Lens.

PubMed

Sharp, Michele L; Hall, Lori; Eleftherion, Anthony; Simpson, Katherine; Neuhauser, Linda

2018-01-01

Print pharmaceutical advertisements in the United States require inclusion of a brief summary of side effects, warnings, precautions, and contraindications from the labeling. The full package insert, which sponsors have traditionally used to fulfill the brief summary requirement, does not adhere to health literacy best practices, limiting its value to consumers. This study compared the understandability and usability of brief summaries in 3 formats designed to be more consumer friendly. Three brief summary formats were tested: (1) 2-column "Question and Answer"; (2) "Prescription Drug Facts Box," similar to current US over-the-counter drug facts labeling; and (3) "Health Literacy," based on clear communication principles. Researchers evaluated the formats using the Suitability Assessment of Materials (SAM) tool and conducted structured, scripted, one-on-one interviews (usability tests) with participants with estimated low to average education levels. This research was replicated across 2 therapeutic areas (type 2 diabetes and plaque psoriasis). SAM scores showed that the Health Literacy format outperformed the Question and Answer format and the Prescription Drug Facts Box format in both therapeutic areas, with both Health Literacy brief summaries rated on the SAM as "superior." Qualitative usability tests supported the SAM findings, with the Health Literacy format preferred consistently over the Question and Answer format, and more often than not over the Prescription Drug Facts Box format. Sponsors can employ a user-tested Health Literacy format to improve the understandability and usability of brief summaries with patients.
Tackling the 2nd V: Big Data, Variety and the Need for Representation Consistency

NASA Astrophysics Data System (ADS)

Clune, T.; Kuo, K. S.

2016-12-01

While Big Data technologies are transforming our ability to analyze ever larger volumes of Earth science data, practical constraints continue to limit our ability to compare data across datasets from different sources in an efficient and robust manner. Within a single data collection, invariants such as file format, grid type, and spatial resolution greatly simplify many types of analysis (often implicitly). However, when analysis combines data across multiple data collections, researchers are generally required to implement data transformations (i.e., "data preparation") to provide appropriate invariants. These transformation include changing of file formats, ingesting into a database, and/or regridding to a common spatial representation, and they can either be performed once, statically, or each time the data is accessed. At the very least, this process is inefficient from the perspective of the community as each team selects its own representation and privately implements the appropriate transformations. No doubt there are disadvantages to any "universal" representation, but we posit that major benefits would be obtained if a suitably flexible spatial representation could be standardized along with tools for transforming to/from that representation. We regard this as part of the historic trend in data publishing. Early datasets used ad hoc formats and lacked metadata. As better tools evolved, published data began to use standardized formats (e.g., HDF and netCDF) with attached metadata. We propose that the modern need to perform analysis across data sets should drive a new generation of tools that support a standardized spatial representation. More specifically, we propose the hierarchical triangular mesh (HTM) as a suitable "generic" resolution that permits standard transformations to/from native representations in use today, as well as tools to convert/regrid existing datasets onto that representation.
Method for in situ combustion

DOEpatents

Pasini, III, Joseph; Shuck, Lowell Z.; Overbey, Jr., William K.

1977-01-01

This invention relates to an improved in situ combustion method for the recovery of hydrocarbons from subterranean earth formations containing carbonaceous material. The method is practiced by penetrating the subterranean earth formation with a borehole projecting into the coal bed along a horizontal plane and extending along a plane disposed perpendicular to the plane of maximum permeability. The subterranean earth formation is also penetrated with a plurality of spaced-apart vertical boreholes disposed along a plane spaced from and generally parallel to that of the horizontal borehole. Fractures are then induced at each of the vertical boreholes which project from the vertical boreholes along the plane of maximum permeability and intersect the horizontal borehole. The combustion is initiated at the horizontal borehole and the products of combustion and fluids displaced from the earth formation by the combustion are removed from the subterranean earth formation via the vertical boreholes. Each of the vertical boreholes are, in turn, provided with suitable flow controls for regulating the flow of fluid from the combustion zone and the earth formation so as to control the configuration and rate of propagation of the combustion zone. The fractures provide a positive communication with the combustion zone so as to facilitate the removal of the products resulting from the combustion of the carbonaceous material.

Enhanced Lithium Oxygen Battery Using a Glyme Electrolyte and Carbon Nanotubes.

PubMed

Carbone, Lorenzo; Moro, Paolo Tomislav; Gobet, Mallory; Munoz, Stephen; Devany, Matthew; Greenbaum, Steven G; Hassoun, Jusef

2018-05-16

The lithium oxygen battery has a theoretical energy density potentially meeting the challenging requirements of electric vehicles. However, safety concerns and short lifespan hinder its application in practical systems. In this work, we show a cell configuration, including a multiwalled carbon nanotube electrode and a low flammability glyme electrolyte, capable of hundreds of cycles without signs of decay. Nuclear magnetic resonance and electrochemical tests confirm the suitability of the electrolyte in a practical battery, whereas morphological and structural aspects revealed by electron microscopy and X-ray diffraction demonstrate the reversible formation and dissolution of lithium peroxide during the electrochemical process. The enhanced cycle life of the cell and the high safety of the electrolyte suggest the lithium oxygen battery herein reported as a viable system for the next generation of high-energy applications.
Inkjet printing of TiO2/AlOOH heterostructures for the formation of interference color images with high optical visibility

PubMed Central

Yakovlev, Aleksandr V.; Milichko, Valentin A.; Pidko, Evgeny A.; Vinogradov, Vladimir V.; Vinogradov, Alexandr V.

2016-01-01

This paper describes a practical approach for the fabrication of highly visible interference color images using sol-gel ink technique and a common desktop inkjet printer. We show the potential of titania-boehmite inks for the production of optical heterostructures on various surfaces, which after drying on air produce optical solid layers with low and high refractive index. The optical properties of the surface heterostructures were adjusted following the principles of antireflection coating resulting in the enhancement of the interference color optical visibility of the prints by as much as 32%. Finally, the presented technique was optimized following the insights into the mechanisms of the drop-surface interactions and the drop-on-surface coalescence to make it suitable for the production of even thickness coatings suitable for printing at a large scale. We propose that the technology described herein is a promising new green and sustainable approach for color printing. PMID:27848979
Development of porous ceramsite from construction and demolition waste.

PubMed

Wang, Chuan; Wu, Jian-Zhi; Zhang, Fu-Shen

2013-01-01

The disposal of construction and demolition (C&D) waste has become a serious problem in China due to the rapid increase of Chinese construction industry in recent years. In the present study, typical C&D waste was employed for ceramsite fabrication so as to find a new way for its effective recycling. A novel process was developed for manufacturing high-quality porous ceramsite according to the special chemical composition and properties of C&D waste. Most importantly, a unique bloating agent was developed for the porous structure formation since it was difficult to obtain a suitable porous structure using traditional bloating agents. The effects of processing parameters such as sintering temperature, heating rate and soaking time were investigated, and the bloating mechanism for ceramsite was discussed. The C&D waste ceramsite (CDWC), with high-intensity, low density and homogeneous mechanical properties, was much more suitable for application in the construction field. This study provides a practical process for efficient recycling of the rapidly increasing quantities of C&D waste.
Standards for Instrument Migration When Implementing Paper Patient-Reported Outcome Instruments Electronically: Recommendations from a Qualitative Synthesis of Cognitive Interview and Usability Studies.

PubMed

Muehlhausen, Willie; Byrom, Bill; Skerritt, Barbara; McCarthy, Marie; McDowell, Bryan; Sohn, Jeremy

2018-01-01

To synthesize the findings of cognitive interview and usability studies performed to assess the measurement equivalence of patient-reported outcome (PRO) instruments migrated from paper to electronic formats (ePRO), and make recommendations regarding future migration validation requirements and ePRO design best practice. We synthesized findings from all cognitive interview and usability studies performed by a contract research organization between 2012 and 2015: 53 studies comprising 68 unique instruments and 101 instrument evaluations. We summarized study findings to make recommendations for best practice and future validation requirements. Five studies (9%) identified minor findings during cognitive interview that may possibly affect instrument measurement properties. All findings could be addressed by application of ePRO best practice, such as eliminating scrolling, ensuring appropriate font size, ensuring suitable thickness of visual analogue scale lines, and providing suitable instructions. Similarly, regarding solution usability, 49 of the 53 studies (92%) recommended no changes in display clarity, navigation, operation, and completion without help. Reported usability findings could be eliminated by following good product design such as the size, location, and responsiveness of navigation buttons. With the benefit of accumulating evidence, it is possible to relax the need to routinely conduct cognitive interview and usability studies when implementing minor changes during instrument migration. Application of design best practice and selecting vendor solutions with good user interface and user experience properties that have been assessed in a representative group may enable many instrument migrations to be accepted without formal validation studies by instead conducting a structured expert screen review. Copyright © 2018 International Society for Pharmacoeconomics and Outcomes Research (ISPOR). Published by Elsevier Inc. All rights reserved.
A Biopharmaceutical Industry Perspective on the Control of Visible Particles in Biotechnology-Derived Injectable Drug Products.

PubMed

Mathonet, Serge; Mahler, Hanns-Christian; Esswein, Stefan T; Mazaheri, Maryam; Cash, Patricia W; Wuchner, Klaus; Kallmeyer, Georg; Das, Tapan K; Finkler, Christof; Lennard, Andrew

2016-01-01

Regulatory monographs in Europe and the United States require drug products for parenteral administration to be "practically free" or "essentially free" of visible particles, respectively. Both terms have been used interchangeably and acknowledge the probabilistic nature of visual particle inspection. The probability of seeing a particle in a drug product container varies according to the size and nature of the particles as well as container and inspection conditions. Therefore, the term "without visible particles" can be highly misleading in the context of what is practically achievable. This may lead to differences in understanding between industry practitioners and regulatory agencies. Is this term intended to mean "zero particles", or is there any intention to distinguish between particle type such as "zero extraneous visible particles" or "zero proteinaceous particles"? Furthermore, how can "zero" particles as a criterion for release testing be reconciled with "practically free from particles" as stated in the definition and a low, justified level of proteinaceous particles after production?The purpose of this position paper is to review best practices in the industry in terms of visual inspection process and associated operator training, quality control sampling, testing, and setting acceptance criteria corresponding to "practically free of visible particles" and providing considerations when visible proteinaceous particles are deemed unavoidable. It also provides a brief overview of visible particle characterization and gives perspectives on patient safety. This position paper applies to biotechnology-derived drug products including monoclonal antibodies in late-phase development to licensed products. In the 2011 monoclonal antibody monograph revision, European Pharmacopoeia experts acknowledged that protein products may also contain proteinaceous particles at release or that protein particles may form during storage. Indeed, industry experience has demonstrated that therapeutic proteins such as monoclonal antibodies can exhibit a propensity for self-association leading to the formation of aggregates that range in size from nanometres (oligomers) to microns (subvisible and visible particles). As a result, the requirement for drug product appearance for monoclonal antibodies was changed from "without visible particles" to "without visible particles unless otherwise authorised or justified". In our view, "practically free from particles" should be considered a suitable acceptance criterion for injectable biotechnology and small-molecule products, as long as appropriately defined. Furthermore, we argue that visual inspection is a suitable quality control release test and that "practically free from particles" is a suitable specification when adequately described. © PDA, Inc. 2016.
Methods of Constructing a Blended Performance Function Suitable for Formation Flight

NASA Technical Reports Server (NTRS)

Ryan, Jack

2017-01-01

Two methods for constructing performance functions for formation fight-for-drag-reduction suitable for use with an extreme-seeking control system are presented. The first method approximates an a prior measured or estimated drag-reduction performance function by combining real-time measurements of readily available parameters. The parameters are combined with weightings determined from a minimum squares optimization to form a blended performance function.
Predictive models for water sources with high susceptibility for bromine-containing disinfection by-product formation: implications for water treatment.

PubMed

Watson, Kalinda; Farré, Maria José; Birt, James; McGree, James; Knight, Nicole

2015-02-01

This study examines a matrix of synthetic water samples designed to include conditions that favour brominated disinfection by-product (Br-DBP) formation, in order to provide predictive models suitable for high Br-DBP forming waters such as salinity-impacted waters. Br-DBPs are known to be more toxic than their chlorinated analogues, in general, and their formation may be favoured by routine water treatment practices such as coagulation/flocculation under specific conditions; therefore, circumstances surrounding their formation must be understood. The chosen factors were bromide concentration, mineral alkalinity, bromide to dissolved organic carbon (Br/DOC) ratio and Suwannee River natural organic matter concentration. The relationships between these parameters and DBP formation were evaluated by response surface modelling of data generated using a face-centred central composite experimental design. Predictive models for ten brominated and/or chlorinated DBPs are presented, as well as models for total trihalomethanes (tTHMs) and total dihaloacetonitriles (tDHANs), and bromide substitution factors for the THMs and DHANs classes. The relationships described revealed that increasing alkalinity and increasing Br/DOC ratio were associated with increasing bromination of THMs and DHANs, suggesting that DOC lowering treatment methods that do not also remove bromide such as enhanced coagulation may create optimal conditions for Br-DBP formation in waters in which bromide is present.
Development and Evaluation of a Wide-Bed Former for Vegetable Cultivation in Controlled Tractor Traffic

NASA Astrophysics Data System (ADS)

Dixit, Anoop; Khurana, Rohinish; Verma, Aseem; Singh, Arshdeep; Manes, G. S.

2018-05-01

India is the second largest producer of vegetables in the world. For vegetable cultivation, a good seed bed preparation is an important task which involves 6-10 different operations. To tackle the issue of multiple operations, a prototype of tractor operated wide bed former was developed and evaluated. The machine comprises of a rotary tiller and a bed forming setup. It forms bed of 1000 mm top width which is suitable as per the track width of an average sized tractor in India. The height of the beds formed is 130 mm whereas the top and bottom width of channel formed on both sides of the bed is 330 and 40 mm respectively at soil moisture content of 12.5-16% (db). The forward speed of 2.75 km/h was observed to be suitable for proper bed formation. The average fuel consumption of the machine was 5.9 l/h. The average bulk density of soil before and after the bed formation was 1.46 and 1.63 g/cc respectively. Field capacity of the machine was found to be 0.31 ha/h. The machine resulted in 93.8% labour saving and 80.4% saving in cost of bed preparation as compared to conventional farmer practice. Overall performance of wide-bed former was found to be satisfactory.
A network architecture for precision formation flying using the IEEE 802.11 MAC Protocol

NASA Technical Reports Server (NTRS)

Clare, Loren P.; Gao, Jay L.; Jennings, Esther H.; Okino, Clayton

2005-01-01

Precision Formation Flying missions involve the tracking and maintenance of spacecraft in a desired geometric formation. The strong coupling of spacecraft in formation flying control requires inter-spacecraft communication to exchange information. In this paper, we present a network architecture that supports PFF control, from the initial random deployment phase to the final formation. We show that a suitable MAC layer for the application protocol is IEEE's 802.11 MAC protocol. IEEE 802.11 MAC has two modes of operations: DCF and PCF. We show that DCF is suitable for the initial deployment phase while switching to PCF when the spacecraft are in formation improves jitter and throughput. We also consider the effect of routing on protocol performance and suggest when it is profitable to turn off route discovery to achieve better network performance.
Data format standard for sharing light source measurements

NASA Astrophysics Data System (ADS)

Gregory, G. Groot; Ashdown, Ian; Brandenburg, Willi; Chabaud, Dominique; Dross, Oliver; Gangadhara, Sanjay; Garcia, Kevin; Gauvin, Michael; Hansen, Dirk; Haraguchi, Kei; Hasna, Günther; Jiao, Jianzhong; Kelley, Ryan; Koshel, John; Muschaweck, Julius

2013-09-01

Optical design requires accurate characterization of light sources for computer aided design (CAD) software. Various methods have been used to model sources, from accurate physical models to measurement of light output. It has become common practice for designers to include measured source data for design simulations. Typically, a measured source will contain rays which sample the output distribution of the source. The ray data must then be exported to various formats suitable for import into optical analysis or design software. Source manufacturers are also making measurements of their products and supplying CAD models along with ray data sets for designers. The increasing availability of data has been beneficial to the design community but has caused a large expansion in storage needs for the source manufacturers since each software program uses a unique format to describe the source distribution. In 2012, the Illuminating Engineering Society (IES) formed a working group to understand the data requirements for ray data and recommend a standard file format. The working group included representatives from software companies supplying the analysis and design tools, source measurement companies providing metrology, source manufacturers creating the data and users from the design community. Within one year the working group proposed a file format which was recently approved by the IES for publication as TM-25. This paper will discuss the process used to define the proposed format, highlight some of the significant decisions leading to the format and list the data to be included in the first version of the standard.
2006 Bethesda International Consensus recommendations on the immunophenotypic analysis of hematolymphoid neoplasia by flow cytometry: optimal reagents and reporting for the flow cytometric diagnosis of hematopoietic neoplasia.

PubMed

Wood, Brent L; Arroz, Maria; Barnett, David; DiGiuseppe, Joseph; Greig, Bruce; Kussick, Steven J; Oldaker, Teri; Shenkin, Mark; Stone, Elizabeth; Wallace, Paul

2007-01-01

Immunophenotyping by flow cytometry has become standard practice in the evaluation and monitoring of patients with hematopoietic neoplasia. However, despite its widespread use, considerable variability continues to exist in the reagents used for evaluation and the format in which results are reported. As part of the 2006 Bethesda Consensus conference, a committee was formed to attempt to define a consensus set of reagents suitable for general use in the diagnosis and monitoring of hematopoietic neoplasms. The committee included laboratory professionals from private, public, and university hospitals as well as large reference laboratories that routinely operate clinical flow cytometry laboratories with an emphasis on lymphoma and leukemia immunophenotyping. A survey of participants successfully identified the cell lineage(s) to be evaluated for each of a variety of specific medical indications and defined a set of consensus reagents suitable for the initial evaluation of each cell lineage. Elements to be included in the reporting of clinical flow cytometric results for leukemia and lymphoma evaluation were also refined and are comprehensively listed. The 2006 Bethesda Consensus conference represents the first successful attempt to define a set of consensus reagents suitable for the initial evaluation of hematopoietic neoplasia. Copyright 2007 Clinical Cytometry Society.
Undergraduate Training in Human Sexuality-Evaluation of the Impact on Medical Doctors' Practice Ten Years After Graduation.

PubMed

Clegg, Mary; Pye, Joanne; Wylie, Kevan R

2016-09-01

It has been suggested that an indicator of a doctor's ability to assess patients' sexual function relates to the level of earlier training. The amount and quality of training the doctor receives at the undergraduate level and beyond could contribute to the doctor's confidence and competence. To evaluate whether doctors found that the teaching in human sexuality received at medical school was sufficient for their future practice and whether their chosen medical specialty and exposure to issues related to sexual health affected this opinion. One hundred seventy doctors maintaining contact with the University of Sheffield Medical School Alumni Office after qualifying in 2004 were sent self-completion postal questionnaires. Space was allocated for supplementary comments to their answers. Self-completion postal questionnaire. Although the response rate was low, there appeared to be an impact of the teaching of human sexuality on the clinical practice of doctors. More than two-thirds of respondents rated the teaching as useful and more than 70% felt more confident in diagnosing and managing male and female sexual issues. The results show a link between the undergraduate teaching of sexual medicine and education and a subsequent proactive approach to sexuality issues; unfortunately, the study does not provide any information about the level of skills or ability in this field of medicine. We have confirmed that the Sheffield model might be suitable for teaching sexual medicine issues in the United Kingdom but cannot confirm that the current format is suitable for international undergraduate audiences. Future study could include other medical schools and a comparison of sexual medicine practice among physicians who received undergraduate medical education and overall numbers could be increased to compare current practice with the number of hours of sexual medicine education as a key parameter. Copyright © 2016 The Authors. Published by Elsevier Inc. All rights reserved.
Reversible interconversion of carbon dioxide and formate by an electroactive enzyme

PubMed Central

Reda, Torsten; Plugge, Caroline M.; Abram, Nerilie J.; Hirst, Judy

2008-01-01

Carbon dioxide (CO2) is a kinetically and thermodynamically stable molecule. It is easily formed by the oxidation of organic molecules, during combustion or respiration, but is difficult to reduce. The production of reduced carbon compounds from CO2 is an attractive proposition, because carbon-neutral energy sources could be used to generate fuel resources and sequester CO2 from the atmosphere. However, available methods for the electrochemical reduction of CO2 require excessive overpotentials (are energetically wasteful) and produce mixtures of products. Here, we show that a tungsten-containing formate dehydrogenase enzyme (FDH1) adsorbed to an electrode surface catalyzes the efficient electrochemical reduction of CO2 to formate. Electrocatalysis by FDH1 is thermodynamically reversible—only small overpotentials are required, and the point of zero net catalytic current defines the reduction potential. It occurs under thoroughly mild conditions, and formate is the only product. Both as a homogeneous catalyst and on the electrode, FDH1 catalyzes CO2 reduction with a rate more than two orders of magnitude faster than that of any known catalyst for the same reaction. Formate oxidation is more than five times faster than CO2 reduction. Thermodynamically, formate and hydrogen are oxidized at similar potentials, so formate is a viable energy source in its own right as well as an industrially important feedstock and a stable intermediate in the conversion of CO2 to methanol and methane. FDH1 demonstrates the feasibility of interconverting CO2 and formate electrochemically, and it is a template for the development of robust synthetic catalysts suitable for practical applications. PMID:18667702
Confirmatory Factor Analysis on the Professional Suitability Scale for Social Work Practice

ERIC Educational Resources Information Center

Tam, Dora M. Y.; Twigg, Robert C.; Boey, Kam-Wing; Kwok, Siu-Ming

2013-01-01

Objective: This article presents a validation study to examine the factor structure of an instrument designed to measure professional suitability for social work practice. Method: Data were collected from registered social workers in a provincial mailed survey. The response rate was 23.2%. After eliminating five cases with multivariate outliers,…
[Postgraduate training for specialists in psychiatry and psychotherapy. Problem-based learning - evaluation of a pilot project].

PubMed

Rufer, M; Schnyder, U; Schirlo, C; Wengle, H; Gerke, W

2011-05-01

Problem-based learning (PBL) emphasizes the student's individual needs, their ability to solve complex clinical problems, and a professional attitude that facilitates communication among colleagues. Thus, PBL appears to provide a perfectly suitable didactic format for postgraduate training of medical specialties. To date, it is only rarely used in this area though. In a pilot project, we implemented PBL into the curriculum of postgraduate training in psychiatry and psychotherapy, and evaluated the program over a period of 12 months, using structured questionnaires. A total of 41 PBL courses were held, with 447 residents participating. Participants as well as tutors assessed 19 of 21 aspects as good or very good (5-point Likert scale, mean value >4). Overall, PBL was rated as highly suitable for advanced training (participants: 4.5±0.8; tutors: 5.0±0.2). The results of this pilot project suggest that PBL might be a useful element of multifaceted advanced training programs, strengthening their practical component and the applicability of knowledge in the daily clinical routine.
A Flexible System for Cultivation of Methanococcus and Other Formate-Utilizing Methanogens

PubMed Central

Wang, Liangliang; Lupa, Boguslaw

2017-01-01

Many hydrogenotrophic methanogens use either H2 or formate as the major electron donor to reduce CO2 for methane production. The conventional cultivation of these organisms uses H2 and CO2 as the substrate with frequent replenishment of gas during growth. H2 is explosive and requires an expensive gassing system to handle safely. Formate is as an ideal alternative substrate from the standpoints of both economy and safety but leads to large changes in the culture pH during growth. Here, we report that glycylglycine is an inexpensive and nontoxic buffer suitable for growth of Methanococcus maripaludis and Methanothermococcus okinawensis. This cultivation system is suitable for growth on liquid as well as solid medium in serum bottles. Moreover, it allows cultivation of liter scale cultures without expensive fermentation equipment. This formate cultivation system provides an inexpensive and flexible alternative for the growth of formate-utilizing, hydrogenotrophic methanogens. PMID:29348732
Enhancing Preschool Children's Number Knowledge: The Suitability of an Intervention Programme for Saudi Practice

ERIC Educational Resources Information Center

Khomais, Sama F.

2014-01-01

This study aimed to present part of a mathematics programme for preschool age, to examine its efficiency in improving children's mathematical abilities in the area of number, and to investigate its suitability for Saudi practice. Pre- and post-tests, using TEMA-2 for one experimental and two control groups were conducted and quantitatively…
How do intake clinicians use patient characteristics to select treatment for patients with personality disorders?

PubMed

van Manen, Janine; Kamphuis, Jan Henk; Visbach, Geny; Ziegler, Uli; Gerritsen, Ad; Van Rossum, Bert; Rijnierse, Piet; Timman, Reinier; Verheul, Roel

2008-11-01

Treatment selection in clinical practice is a poorly understood, often largely implicit decision process, perhaps especially for patients with personality disorders. This study, therefore, investigated how intake clinicians use information about patient characteristics to select psychotherapeutic treatment for patients with personality disorder. A structured interview with a forced-choice format was administered to 27 experienced intake clinicians working in five specialist mental health care institutes in the Netherlands. Substantial consensus was evident among intake clinicians. The results revealed that none of the presented patient characteristics were deemed relevant for the selection of the suitable treatment setting. The appropriate duration and intensity are selected using severity or personal strength variables. The theoretical orientation is selected using personal strength variables.
Bioengineering of injectable encapsulated aggregates of pluripotent stem cells for therapy of myocardial infarction

NASA Astrophysics Data System (ADS)

Zhao, Shuting; Xu, Zhaobin; Wang, Hai; Reese, Benjamin E.; Gushchina, Liubov V.; Jiang, Meng; Agarwal, Pranay; Xu, Jiangsheng; Zhang, Mingjun; Shen, Rulong; Liu, Zhenguo; Weisleder, Noah; He, Xiaoming

2016-10-01

It is difficult to achieve minimally invasive injectable cell delivery while maintaining high cell retention and animal survival for in vivo stem cell therapy of myocardial infarction. Here we show that pluripotent stem cell aggregates pre-differentiated into the early cardiac lineage and encapsulated in a biocompatible and biodegradable micromatrix, are suitable for injectable delivery. This method significantly improves the survival of the injected cells by more than six-fold compared with the conventional practice of injecting single cells, and effectively prevents teratoma formation. Moreover, this method significantly enhances cardiac function and survival of animals after myocardial infarction, as a result of a localized immunosuppression effect of the micromatrix and the in situ cardiac regeneration by the injected cells.
Methacrylate gels with epoxide groups as supports for immobilization of enzymes in pH range 3-12.

PubMed

Turková, J; Bláha, K; Malaníková, M; Vancurová, D; Svec, F; Kálal, J

1978-05-11

Glycidyl methacrylate gels are carriers suitable for attachment of enzymes and for use in affinity chromatography. Experiments on the coupling of glycyl-L-leucine and acetyl-L-leucine to these gels have shown a high pH-dependence of the bond formation between the support and the alpha-amino group (pH optimum 9.7); the coupling reaction between the epoxide group and the carboxyl group is practically pH-independent. Serum albumin and trypsin were attached to a greater extent in acidic than in alkaline media. The effects of time and temperature were also studied. The catalytic action of immobilized trypsin, as well as its use for affinity chromatography of trypsin inhibitor, were studied.

The challenges of heat sterilization of peritoneal dialysis solutions: is there an alternative?

PubMed

Hanrahan, Conor T; Himmele, Rainer; Diaz-Buxo, Jose A

2012-01-01

Peritoneal dialysis (PD) solutions are currently sterilized in an autoclave using high-temperature saturated steam. Although thermal methods are an effective means of sterilization, the heating of PD solutions results in the formation of toxic glucose degradation products (GDPs). Here, we review basic concepts in the sterilization of PD solutions and discuss possible alternatives to steam sterilization, including filtration, ohmic heat, ionizing radiation, and pulsed ultraviolet light. Although the latter methods have several advantages, many also have prohibitive limitations or have not been adequately studied for use on PD solutions. Thus, in the absence of suitable alternatives, conventional heat sterilization, in combination with low-GDP manufacturing practices, remains the best option at the present time.
Molecular Biology Masterclasses--Developing Practical Skills and Building Links with Higher Education in Years 12/13

ERIC Educational Resources Information Center

Hooley, Paul; Cooper, Phillippa; Skidmore, Nick

2008-01-01

A one day practical course in molecular biology skills suitable for year 12/13 students is described. Colleagues from partner schools and colleges were trained by university staff in basic techniques and then collaborated in the design of a course suitable for their own students. Participants carried out a transformation of "E.coli"…
Method For Screening Microcrystallizations For Crystal Formation

DOEpatents

Santarsiero, Bernard D. , Stevens, Raymond C. , Schultz, Peter G. , Jaklevic, Joseph M. , Yegian, Derek T. , Cornell, Earl W. , Nordmeyer, Robert A.

2003-10-07

A method is provided for performing array microcrystallizations to determine suitable crystallization conditions for a molecule, the method comprising: forming an array of microcrystallizations, each microcrystallization comprising a drop comprising a mother liquor solution whose composition varies within the array and a molecule to be crystallized, the drop having a volume of less than 1 microliter; storing the array of microcrystallizations under conditions suitable for molecule crystals to form in the drops in the array; and detecting molecule crystal formation in the drops by taking images of the drops.
Design and analysis of metabolic pathways supporting formatotrophic growth for electricity-dependent cultivation of microbes.

PubMed

Bar-Even, Arren; Noor, Elad; Flamholz, Avi; Milo, Ron

2013-01-01

Electrosynthesis is a promising approach that enables the biological production of commodities, like fuels and fine chemicals, using renewably produced electricity. Several techniques have been proposed to mediate the transfer of electrons from the cathode to living cells. Of these, the electroproduction of formate as a mediator seems especially promising: formate is readily soluble, of low toxicity and can be produced at relatively high efficiency and at reasonable current density. While organisms that are capable of formatotrophic growth, i.e. growth on formate, exist naturally, they are generally less suitable for bulk cultivation and industrial needs. Hence, it may be helpful to engineer a model organism of industrial relevance, such as E. coli, for growth on formate. There are numerous metabolic pathways that can potentially support formatotrophic growth. Here we analyze these diverse pathways according to various criteria including biomass yield, thermodynamic favorability, chemical motive force, kinetics and the practical challenges posed by their expression. We find that the reductive glycine pathway, composed of the tetrahydrofolate system, the glycine cleavage system, serine hydroxymethyltransferase and serine deaminase, is a promising candidate to support electrosynthesis in E. coli. The approach presented here exemplifies how combining different computational approaches into a systematic analysis methodology provides assistance in redesigning metabolism. This article is part of a Special Issue entitled: Metals in Bioenergetics and Biomimetics Systems. Copyright © 2012 Elsevier B.V. All rights reserved.
Written formative assessment and silence in the classroom

NASA Astrophysics Data System (ADS)

Lee Hang, Desmond Mene; Bell, Beverley

2015-09-01

In this commentary, we build on Xinying Yin and Gayle Buck's discussion by exploring the cultural practices which are integral to formative assessment, when it is viewed as a sociocultural practice. First we discuss the role of assessment and in particular oral and written formative assessments in both western and Samoan cultures, building on the account of assessment practices in the Chinese culture given by Yin and Buck. Secondly, we document the cultural practice of silence in Samoan classroom's which has lead to the use of written formative assessment as in the Yin and Buck article. We also discuss the use of written formative assessment as a scaffold for teacher development for formative assessment. Finally, we briefly discuss both studies on formative assessment as a sociocultural practice.
Preparation and characterization of a new gellan gum and sulphated hyaluronic acid hydrogel designed for epidural scar prevention.

PubMed

Cencetti, Claudia; Bellini, Davide; Longinotti, Cristina; Martinelli, Andrea; Matricardi, Pietro

2011-02-01

Postsurgical adhesions are a common problem in clinical practice, causing nerve compression, pain and discomfort. A new hydrogel based on gellan gum and sulphated hyaluronic acid was synthesized, with the aim to create an effective barrier for epidural scar formation. Physico-chemical properties of the gel were analyzed, and preliminary biocompatibility data (i.e. cytotoxicity) have been collected in view of its potential clinical use. The characterization of the new material demonstrated that the hydrogel, due to its high-viscosity, could effectively act as a barrier with a long in situ residence time. In addition, the hydrogel can be easily extruded from a syringe and its structure exhibits excellent stabilizing properties. Furthermore, biological assays showed that this gel is suitable for further preclinical development.
Spectroscopic signature of mouse embryonic stem cell-derived hepatocytes using synchrotron Fourier transform infrared microspectroscopy

NASA Astrophysics Data System (ADS)

Thumanu, Kanjana; Tanthanuch, Waraporn; Ye, Danna; Sangmalee, Anawat; Lorthongpanich, Chanchao; Parnpai, Rangsun; Heraud, Philip

2011-05-01

Stem cell-based therapy for liver regeneration has been proposed to overcome the persistent shortage in the supply of suitable donor organs. A requirement for this to succeed is to find a rapid method to detect functional hepatocytes, differentiated from embryonic stem cells. We propose Fourier transform infrared (FTIR) microspectroscopy as a versatile method to identify the early and last stages of the differentiation process leading to the formation of hepatocytes. Using synchrotron-FTIR microspectroscopy, the means of identifying hepatocytes at the single-cell level is possible and explored. Principal component analysis and subsequent partial least-squares (PLS) discriminant analysis is applied to distinguish endoderm induction from hepatic progenitor cells and matured hepatocyte-like cells. The data are well modeled by PLS with endoderm induction, hepatic progenitor cells, and mature hepatocyte-like cells able to be discriminated with very high sensitivity and specificity. This method provides a practical tool to monitor endoderm induction and has the potential to be applied for quality control of cell differentiation leading to hepatocyte formation.
Evaluation of nonlinear impact resonance spectroscopy method for detecting delayed ettringite formation

NASA Astrophysics Data System (ADS)

Rashidi, M. M. N.; Paul, A.; Kim, J.-Y.; Jacobs, L. J.; Kurtis, K. E.

2015-03-01

The use of the Nonlinear Impact Resonance Acoustic Spectroscopy (NIRAS) method to monitor the evolution of damage due to delayed ettringite formation (DEF) is examined. In practice, the temperature of concrete during casting of precast concrete members or massive concrete structures may reach higher than 70°C which can provide suitable conditions for damage to occur due to DEF, particularly in concrete which is subsequently exposed to wet environments. While expansion - often in excess of 1% - is characteristic of DEF, the evolution of damage begins with microcracking. Unfortunately, there is no standard to test the susceptibility of materials or material combinations to DEF. On the other hand, NIRAS shows great sensitivity to the detection of microcracks and has been successfully applied to concrete to detect thermal and alkali silica reaction in concrete. In this preliminary research, the NIRAS method is used to discriminate among mortar samples which are relatively undamaged and those in the early stages of DEF. The results show that NIRAS could be a reliable and robust method in the detection of microcracks due to DEF.
Fluorescence Spectroscopy in Thermodynamic and Kinetic Analysis of pH-Dependent Membrane Protein Insertion

PubMed Central

Ladokhin, Alexey S.

2016-01-01

Experimental determination of the free energy stabilizing the structure of membrane proteins in their native lipid environment is undermined by a lack of appropriate methods and suitable model systems. Here, we demonstrate how fluorescence correlation spectroscopy can be used to characterize thermodynamics of pH-triggered bilayer insertion of nonconstitutive membrane proteins (e.g., bacterial toxins, colicins). The experimental design is guided by the appropriate thermodynamic scheme which considers two independent processes: pH-dependent formation of a membrane-competent form and its insertion into the lipid bilayer. Measurements of a model protein annexin B12 under conditions of lipid saturation demonstrate that protonation leading to the formation of the membrane-competent state occurs near membrane interface. Lipid titration experiments demonstrate that the free energy of transfer to the intermediate interfacial state is especially favorable, while the free energy of final insertion is modulated by interplay of hydrophobic and electrostatic interactions on the bilayer interface. The general principles of kinetic measurements along the insertion pathway containing interfacial intermediate are discussed and practical examples emphasizing appropriate fitting and normalization procedures are presented. PMID:21609856
Ready to use bioinformatics analysis as a tool to predict immobilisation strategies for protein direct electron transfer (DET).

PubMed

Cazelles, R; Lalaoui, N; Hartmann, T; Leimkühler, S; Wollenberger, U; Antonietti, M; Cosnier, S

2016-11-15

Direct electron transfer (DET) to proteins is of considerable interest for the development of biosensors and bioelectrocatalysts. While protein structure is mainly used as a method of attaching the protein to the electrode surface, we employed bioinformatics analysis to predict the suitable orientation of the enzymes to promote DET. Structure similarity and secondary structure prediction were combined underlying localized amino-acids able to direct one of the enzyme's electron relays toward the electrode surface by creating a suitable bioelectrocatalytic nanostructure. The electro-polymerization of pyrene pyrrole onto a fluorine-doped tin oxide (FTO) electrode allowed the targeted orientation of the formate dehydrogenase enzyme from Rhodobacter capsulatus (RcFDH) by means of hydrophobic interactions. Its electron relays were directed to the FTO surface, thus promoting DET. The reduction of nicotinamide adenine dinucleotide (NAD(+)) generating a maximum current density of 1μAcm(-2) with 10mM NAD(+) leads to a turnover number of 0.09electron/s/molRcFDH. This work represents a practical approach to evaluate electrode surface modification strategies in order to create valuable bioelectrocatalysts. Copyright © 2016 Elsevier B.V. All rights reserved.
Measurement and reduction of micro-bubble formation in high-viscosity fluids

NASA Astrophysics Data System (ADS)

Tom, Glenn; Liu, Wei

2012-03-01

Gases at high drive pressure can initially dissolve into the fluids used in lithography and other critical processes during the fabrication of integrated circuits. In the low pressure portion of the dispense train, the dissolved gases can revert to bubbles. These bubbles can: 1. Affect the compressibility of the working fluid and change the flow characteristics of the dispense heads which require frequent re-tuning of the coating tools. 2. Contribute to defect formation if the bubbles are trapped on the surface of the wafer. Photosensitive Polyimides (PI) have high viscosities (1000 to 20,000 cP). Because of the high viscosity, high-powered, expensive pumps are needed to effectively remove the fluid from its container. Suction from the pump filling cycle easily causes cavitation, which can create flow rate variability, and micro-bubble formation. It is a common practice to apply pressure to the PI resists to minimize cavitation in the pump. The trade-off to this practice is the entrainment (dissolution) of the drive gas into the resist and the risk of micro-bubbles forming later in the dispense train. In the current study, ATMI measured the effects of two methods of pressure dispense from the container on the amount of gas entrained in a viscous fluid: (1) indirect pressure dispense and (2) direct pressure dispense. The main analytical method employed to measure the amount of dissolved gases is a gas chromatograph (GC), which can measure the concentration of gases dissolved in a volatile fluid. It is not suitable to measure gases in low volatility fluids. The new test method developed, however, is capable of measuring dissolved gases in low volatility fluids.
Impact of dopant concentrations on emitter formation with spin on dopant source in n-type crystalline silicon solar cells

DOE Office of Scientific and Technical Information (OSTI.GOV)

Singha, Bandana; Solanki, Chetan Singh

Use of a suitable dopant source for emitter formation is an essential requirement in n-type crystalline silicon solar cells. Boron spin on dopant source, used as alternative to mostly used BBr{sub 3} liquid source, can yield an emitter with less diffusion induced defects under controlled conditions. Different concentrations of commercially available spin on dopant source is used and optimized in this work for sheet resistance values of the emitter ranging from 30 Ω/□ to 70 Ω/□ with emitter doping concentrations suitable for ohmic contacts. The dopant concentrations diluted with different ratios improves the carrier lifetime and thus improves the emittermore » performance. Hence use of suitable dopant source is essential in forming emitters in n-type crystalline silicon solar cells.« less
File format for normalizing radiological concentration exposure rate and dose rate data for the effects of radioactive decay and weathering processes

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kraus, Terrence D.

2017-04-01

This report specifies the electronic file format that was agreed upon to be used as the file format for normalized radiological data produced by the software tool developed under this TI project. The NA-84 Technology Integration (TI) Program project (SNL17-CM-635, Normalizing Radiological Data for Analysis and Integration into Models) investigators held a teleconference on December 7, 2017 to discuss the tasks to be completed under the TI program project. During this teleconference, the TI project investigators determined that the comma-separated values (CSV) file format is the most suitable file format for the normalized radiological data that will be outputted frommore » the normalizing tool developed under this TI project. The CSV file format was selected because it provides the requisite flexibility to manage different types of radiological data (i.e., activity concentration, exposure rate, dose rate) from other sources [e.g., Radiological Assessment and Monitoring System (RAMS), Aerial Measuring System (AMS), Monitoring and Sampling). The CSV file format also is suitable for the file format of the normalized radiological data because this normalized data can then be ingested by other software [e.g., RAMS, Visual Sampling Plan (VSP)] used by the NA-84’s Consequence Management Program.« less
Reversible formation of aminals: a new strategy to control the release of bioactive volatiles from dynamic mixtures.

PubMed

Godin, Guillaume; Levrand, Barbara; Trachsel, Alain; Lehn, Jean-Marie; Herrmann, Andreas

2010-05-14

Dynamic mixtures generated by reversible aminal formation of fragrance aldehydes with N,N-dibenzyl alkyldiamines in aqueous systems were found to be suitable delivery systems for the controlled release of bioactive volatiles.
Ecoclimatic indicators to study climate suitability of areas for the cultivation of specific crops

NASA Astrophysics Data System (ADS)

Caubel, J.; Garcia de Cortazar Atauri, I.; Cufi, J.; Huard, F.; Launay, M.; Ripoche, D.; Graux, A.; deNoblet, N.

2013-12-01

Climatic conditions play a fundamental role in the suitability of geographical areas for cropping. In the context of climate change, we could expect changes in overall climatic conditions and so, on the suitability for cropping. Therefore, assessing the future climate suitability of areas for cropping is decisive for anticipating agriculture in a given area. Moreover, it is crucial to have access to the split up information concerning the effect of climate on the achievement of the main ecophysiological processes and cultural practices taking place during the crop cycle. In this way, stakeholders can envisage land use adaptations under climate change conditions, such as changes in cultural practices or development of new varieties for example. We proposed an aggregation tool of ecoclimatic indicators to design evaluation trees of climate suitability of areas for cropping, GETARI (Generic Evaluation Tool of Ecoclimatic Indicators). It calculates an overall climate suitability index at the annual scale, from a designed evaluation tree. This aggregation tool allows to characterize climate suitability according to crop ecophysiology, grain/fruit quality or crop management. GETARI proposes the major ecophysiological processes and cultural practices taking place during phenological periods, together with the climatic effects that are known to affect their achievement. The climatic effects on the ecophysiological processes (or cultural practices) during phenological periods are captured by the ecoclimatic indicators, which are agroclimatic indicators calculated over phenological periods. They give information about crop response to climate through ecophysiological or agronomic thresholds. Those indices of suitability are normalized and aggregated according to aggregation rules in order to compute an overall climate index. In order to illustrate how GETARI can be used, we designed evaluation trees in order to study the climate suitability for maize cropping regarding ecophysiology, for wheat cropping regarding its management and for grape cropping regarding its quality. The designed evaluation trees were developed in accordance with expert assessment and were applied in some past climatic conditions in France to verify their consistence. To conclude, the use of indicators does not replace models but represent additional tools for understanding and spatializing some results obtained by models. Their use can provide information about suitability of geographical areas for cropping in future climatic conditions and can enable to minimize the risk of crop failure. This work is carried out under the research program ORACLE (Opportunities and Risks of Agrosystems & forests in response to CLimate, socio-economic and policy changEs in France (and Europe).
Bicycle suitability criteria : literature review and state-of-the-practice survey

DOT National Transportation Integrated Search

1997-07-01

This research report reviews and summarizes bicycle suitability criteria being used in the United States, presents preliminary conclusions, and makes preliminary recommendations regarding such criteria. Conclusions and recommendations are presented h...
21 CFR 133.129 - Dry curd cottage cheese.

Code of Federal Regulations, 2010 CFR

2010-04-01

...” means the milk of cows from which the milk fat has been separated, and “concentrated skim milk” means... rennet and/or other safe and suitable milk-clotting enzyme that produces equivalent curd formation, are..., or hydrochloric acid, with or without rennet and/or other safe and suitable milk-clotting enzyme that...
Formats and Network Protocols for Browser Access to 2D Raster Data

NASA Astrophysics Data System (ADS)

Plesea, L.

2015-12-01

Tiled web maps in browsers are a major success story, forming the foundation of many current web applications. Enabling tiled data access is the next logical step, and is likely to meet with similar success. Many ad-hoc approaches have already started to appear, and something similar is explored within the Open Geospatial Consortium. One of the main obstacles in making browser data access a reality is the lack of a well-known data format. This obstacle also represents an opportunity to analyze the requirements and possible candidates, applying lessons learned from web tiled image services and protocols. Similar to the image counterpart, a web tile raster data format needs to have good intrinsic compression and be able to handle high byte count data types including floating point. An overview of a possible solution to the format problem, a 2D data raster compression algorithm called Limited Error Raster Compression (LERC) will be presented. In addition to the format, best practices for high request rate HTTP services also need to be followed. In particular, content delivery network (CDN) caching suitability needs to be part of any design, not an after-thought. Last but not least, HTML 5 browsers will certainly be part of any solution since they provide improved access to binary data, as well as more powerful ways to view and interact with the data in the browser. In a simple but relevant application, digital elevation model (DEM) raster data is served as LERC compressed data tiles which are used to generate terrain by a HTML5 scene viewer.
Flood area and damage estimation in Zhejiang, China.

PubMed

Liu, Renyi; Liu, Nan

2002-09-01

A GIS-based method to estimate flood area and damage is presented in this paper, which is oriented to developing countries like China, where labor is readily available for GIS data collecting, and tools such as, HEC-GeoRAS might not be readily available. At present local authorities in developing countries are often not predisposed to pay for commercial GIS platforms. To calculate flood area, two cases, non-source flood and source flood, are distinguished and a seed-spread algorithm suitable for source-flooding is described. The flood damage estimation is calculated in raster format by overlaying the flood area range with thematic maps and relating this to other socioeconomic data. Several measures used to improve the geometric accuracy and computing efficiency are presented. The management issues related to the application of this method, including the cost-effectiveness of approximate method in practice and supplementing two technical lines (self-programming and adopting commercial GIS software) to each other, are also discussed. The applications show that this approach has practical significance to flood fighting and control in developing countries like China.
WWC Review of the Report "Benefits of Practicing 4 = 2 + 2: Nontraditional Problem Formats Facilitate Children's Understanding of Mathematical Equivalence." What Works Clearinghouse Single Study Review

ERIC Educational Resources Information Center

What Works Clearinghouse, 2014

2014-01-01

The 2011 study, "Benefits of Practicing 4 = 2 + 2: Nontraditional Problem Formats Facilitate Children's Understanding of Mathematical Equivalence," examined the effects of addition practice using nontraditional problem formats on students' understanding of mathematical equivalence. In nontraditional problem formats, operations appear on…

Programmed Approach vs. Conventional Approach Using highly Consistent Sound-Symbol System of Reading in Three Primary Grades.

ERIC Educational Resources Information Center

Shore, Robert Eugene

The effects of two primary reading programs using a programed format (with and without audio-supplement) and a conventional format (the program format deprogramed) in a highly consistent sound-symbol system of reading at three primary grade levels were compared, using a pretest, post-test control group design. The degree of suitability of…
U.S. Department of Energy's site screening, site selection, and initial characterization for storage of CO2 in deep geological formations

USGS Publications Warehouse

Rodosta, T.D.; Litynski, J.T.; Plasynski, S.I.; Hickman, S.; Frailey, S.; Myer, L.

2011-01-01

The U.S. Department of Energy (DOE) is the lead Federal agency for the development and deployment of carbon sequestration technologies. As part of its mission to facilitate technology transfer and develop guidelines from lessons learned, DOE is developing a series of best practice manuals (BPMs) for carbon capture and storage (CCS). The "Site Screening, Site Selection, and Initial Characterization for Storage of CO2 in Deep Geological Formations" BPM is a compilation of best practices and includes flowchart diagrams illustrating the general decision making process for Site Screening, Site Selection, and Initial Characterization. The BPM integrates the knowledge gained from various programmatic efforts, with particular emphasis on the Characterization Phase through pilot-scale CO2 injection testing of the Validation Phase of the Regional Carbon Sequestration Partnership (RCSP) Initiative. Key geologic and surface elements that suitable candidate storage sites should possess are identified, along with example Site Screening, Site Selection, and Initial Characterization protocols for large-scale geologic storage projects located across diverse geologic and regional settings. This manual has been written as a working document, establishing a framework and methodology for proper site selection for CO2 geologic storage. This will be useful for future CO2 emitters, transporters, and storage providers. It will also be of use in informing local, regional, state, and national governmental agencies of best practices in proper sequestration site selection. Furthermore, it will educate the inquisitive general public on options and processes for geologic CO2 storage. In addition to providing best practices, the manual presents a geologic storage resource and capacity classification system. The system provides a "standard" to communicate storage and capacity estimates, uncertainty and project development risk, data guidelines and analyses for adequate site characterization, and guidelines for reporting estimates within the classification based on each project's status.
The Suitable Geological Formations for Spent Fuel Disposal in Romania

DOE Office of Scientific and Technical Information (OSTI.GOV)

Marunteanu, C.; Ionita, G.; Durdun, I.

2007-07-01

Using the experience in the field of advanced countries and formerly Romanian program data, ANDRAD, the agency responsible for the disposal of radioactive wastes, started the program for spent fuel disposal in deep geological formations with a documentary analysis at the national scale. The potential geological formations properly characterized elsewhere in the world: salt, clay, volcanic tuff, granite and crystalline rocks,. are all present in Romania. Using general or specific selection criteria, we presently consider the following two areas for candidate geological formations: 1. Clay formations in two areas in the western part of Romania: (1) The Pannonian basin Socodormore » - Zarand, where the clay formation is 3000 m thick, with many bentonitic strata and undisturbed structure, and (2) The Eocene Red Clay on the Somes River, extending 1200 m below the surface. They both need a large investigation program in order to establish and select the required homogeneous, dry and undisturbed zones at a suitable depth. 2. Old platform green schist formations, low metamorphosed, quartz and feldspar rich rocks, in the Central Dobrogea structural unit, not far from Cernavoda NPP (30 km average distance), 3000 m thick and including many homogeneous, fine granular, undisturbed, up to 300 m thick layers. (authors)« less
Self-Assessment of competence during post-graduate training in general medicine: A preliminary study to develop a portfolio for further education

PubMed Central

Huenges, Bert; Woestmann, Barbara; Ruff-Dietrich, Susanne; Rusche, Herbert

2017-01-01

Awareness of one’s own strengths and weaknesses is a key qualification for the specialist physician. We examined how physicians undergoing specialist training in general medicine rate themselves in different areas. For this purpose, 139 participants receiving post-graduate training in general practice offered by the Medical Association of Westfalen-Lippe assessed themselves regarding their subjective confidence in 20 core competencies and 47 situations involving patient counseling in general practice. Their self-assessments were recorded on a five-point Likert scale. The study questions addressed acceptance and practicability of self-assessment, mean values, reliability, stratification and plausibility of the results in group comparison. On average participants rated their subjective confidence with 3.4 out of 5 points. The results are self-consistent (Cronbach’s alpha >0.8), although there are considerable differences among competencies and among participants. The latter can be explained partly by biographical data, which supports the plausibility of the data. Participants stated that regularly gathering data on subjective learning needs and the discussion of these needs with mentors and trainers contributes to improving their specialist training. Elements for self-assessment are suitable for integration into a postgraduate training portfolio. These should be supplemented by formative assessment procedures. PMID:29226236
Self-Assessment of competence during post-graduate training in general medicine: A preliminary study to develop a portfolio for further education.

PubMed

Huenges, Bert; Woestmann, Barbara; Ruff-Dietrich, Susanne; Rusche, Herbert

2017-01-01

Awareness of one's own strengths and weaknesses is a key qualification for the specialist physician. We examined how physicians undergoing specialist training in general medicine rate themselves in different areas. For this purpose, 139 participants receiving post-graduate training in general practice offered by the Medical Association of Westfalen-Lippe assessed themselves regarding their subjective confidence in 20 core competencies and 47 situations involving patient counseling in general practice. Their self-assessments were recorded on a five-point Likert scale. The study questions addressed acceptance and practicability of self-assessment, mean values, reliability, stratification and plausibility of the results in group comparison. On average participants rated their subjective confidence with 3.4 out of 5 points. The results are self-consistent (Cronbach's alpha >0.8), although there are considerable differences among competencies and among participants. The latter can be explained partly by biographical data, which supports the plausibility of the data. Participants stated that regularly gathering data on subjective learning needs and the discussion of these needs with mentors and trainers contributes to improving their specialist training. Elements for self-assessment are suitable for integration into a postgraduate training portfolio. These should be supplemented by formative assessment procedures.
Autotransplantation of mandibular third molar: a case report.

PubMed

Ravi Kumar, Pabbati; Jyothi, Mandava; Sirisha, Kantheti; Racca, Khushboo; Uma, Chalasani

2012-01-01

Autogenous transplantation is a feasible, fast, and economical option for the treatment of nonsalvageable teeth when a suitable donor tooth is available. This paper presents successful autotransplantation of a mature mandibular left third molar (38) without anatomical variances is used to replace a mandibular left second molar (37). The mandibular second molar was nonrestorable due to extensive root caries and resorption of distal root. After extraction of mandibular second and third molars, root canal therapy was done for the third molar extraorally, and the tooth was reimplanted into the extracted socket of second molar site. After one year, clinical and radiographic examination revealed satisfactory outcome with no signs or symptoms suggestive of pathology. In selected cases, autogenous tooth transplantation, even after complete root formation of the donor tooth, may be considered as a practical treatment alternative to conventional prosthetic rehabilitation or implant treatment.
Applications of NASTRAN to nuclear problems

NASA Technical Reports Server (NTRS)

Spreeuw, E.

1972-01-01

The extent to which suitable solutions may be obtained for one physics problem and two engineering type problems is traced. NASTRAN appears to be a practical tool to solve one-group steady-state neutron diffusion equations. Transient diffusion analysis may be performed after new levels that allow time-dependent temperature calculations are developed. NASTRAN piecewise linear anlaysis may be applied to solve those plasticity problems for which a smooth stress-strain curve can be used to describe the nonlinear material behavior. The accuracy decreases when sharp transitions in the stress-strain relations are involved. Improved NASTRAN usefulness will be obtained when nonlinear material capabilities are extended to axisymmetric elements and to include provisions for time-dependent material properties and creep analysis. Rigid formats 3 and 5 proved to be very convenient for the buckling and normal-mode analysis of a nuclear fuel element.
The Impact of an Alternative Professional Development Model on Teacher Practices in Formative Assessment and Student Learning

ERIC Educational Resources Information Center

Robinson, Jack; Myran, Steve; Strauss, Richard; Reed, William

2014-01-01

Among contemporary means of enhancing student learning, formative assessment is perhaps one of the most important and effective. While formative assessment ideas and practices have been shown to have a proven record enhancing student learning, these practices are slow to be fully integrated into teachers' day-to-day classroom practices. This study…
Method of fracturing a geological formation

DOEpatents

Johnson, James O.

1990-01-01

An improved method of fracturing a geological formation surrounding a well bore is disclosed. A relatively small explosive charge is emplaced in a well bore and the bore is subsequently hydraulically pressurized to a pressure less than the formation breakdown pressure and preferably greater than the fracture propagation pressure of the formation. The charge is denoted while the bore is so pressurized, resulting in the formation of multiple fractures in the surrounding formation with little or no accompanying formation damage. Subsequent hydraulic pressurization can be used to propagate and extend the fractures in a conventional manner. The method is useful for stimulating production of oil, gas and possibly water from suitable geologic formations.
Software architecture as a freedom for 3D content providers and users along with independency on purposes and used devices

NASA Astrophysics Data System (ADS)

Sultana, Razia; Christ, Andreas; Meyrueis, Patrick

2014-05-01

The improvements in the hardware and software of communication devices have allowed running Virtual Reality (VR) and Augmented Reality (AR) applications on those. Nowadays, it is possible to overlay synthetic information on real images, or even to play 3D on-line games on smart phones or some other mobile devices. Hence the use of 3D data for business and specially for education purposes is ubiquitous. Due to always available at hand and always ready to use properties of mobile phones, those are considered as most potential communication devices. The total numbers of mobile phone users are increasing all over the world every day and that makes mobile phones the most suitable device to reach a huge number of end clients either for education or for business purposes. There are different standards, protocols and specifications to establish the communication among different communication devices but there is no initiative taken so far to make it sure that the send data through this communication process will be understood and used by the destination device. Since all the devices are not able to deal with all kind of 3D data formats and it is also not realistic to have different version of the same data to make it compatible with the destination device, it is necessary to have a prevalent solution. The proposed architecture in this paper describes a device and purpose independent 3D data visibility any time anywhere to the right person in suitable format. There is no solution without limitation. The architecture is implemented in a prototype to make an experimental validation of the architecture which also shows the difference between theory and practice.
In-situ process for recovering hydrocarbons from a diatomite-type formation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Davis, B.W.

1984-12-04

An in-situ process for recovering hydrocarbons from a diatomite-type formation which comprises contacting the diatomite formation with a C/sub 4/-C/sub 10/ alcohol and thereafter displacing the hydrocarbon-alcohol mixture with an aqueous alkaline solution towards a production well. The aqueous alkaline solution can be displaced with additional solution or another suitable medium such as a connate water drive.
12 CFR 208.111 - Obligations concerning institutional customers.

Code of Federal Regulations, 2011 CFR

2011-01-01

... adopting sales practice rules for the government securities market, a market with a particularly broad... on their suitability obligations when making recommendations to institutional customers. (b) The... suitability obligations in making recommendations to an institutional customer are the customer's capability...
12 CFR 208.111 - Obligations concerning institutional customers.

Code of Federal Regulations, 2014 CFR

2014-01-01

... adopting sales practice rules for the government securities market, a market with a particularly broad... on their suitability obligations when making recommendations to institutional customers. (b) The... suitability obligations in making recommendations to an institutional customer are the customer's capability...
12 CFR 208.111 - Obligations concerning institutional customers.

Code of Federal Regulations, 2012 CFR

2012-01-01

... adopting sales practice rules for the government securities market, a market with a particularly broad... on their suitability obligations when making recommendations to institutional customers. (b) The... suitability obligations in making recommendations to an institutional customer are the customer's capability...
Evaluation and Testing of the Suitability of a Coal-Based Jet Fuel

DTIC Science & Technology

2008-06-01

accepted that higher aromatic content increases particulate matter formation during combustion ( Naegeli and Moses, 1980; Monroig et al., 2005...Alkyl Groups. Ind. Eng. Chem. Fundam. 23, 288-294. Naegeli , D. W., Moses, C.A., 1980. Effects of Fuel Molecular Structure on Soot Formation in Gas
A composite foraminiferal biostratigraphic sequence for the Lower Miocene deposits in the type area of the Qom Formation, central Iran, developed by constrained optimization (CONOP)

NASA Astrophysics Data System (ADS)

Daneshian, Jahanbakhsh; Ramezani Dana, Leila; Sadler, Peter

2017-01-01

Benthic foraminifera species commonly outnumber planktic species in the type area of the Lower Miocene Qom Formation, in north central Iran, where it records the Tethyan link between the eastern Mediterranean and Indo- Pacific provinces. Because measured sections preserve very different sequences of first and last occurrences of these species, no single section provides a completely suitable baseline for correlation. To resolve this problem, we combined bioevents from three stratigraphic sections into a single composite sequence by constrained optimization (CONOP). The composite section arranges the first and last appearance events (FAD and LAD) of 242 foraminifera in an optimal order that minimizes the implied diachronism between sections. The composite stratigraphic ranges of the planktic foraminifera support a practical biozonation which reveals substantial local changes of accumulation rate during Aquitanian to Burdigalian times. Traditional biozone boundaries emerge little changed but an order of magnitude more correlations can be interpolated. The top of the section at Dobaradar is younger than previously thought and younger than sections at Dochah and Tigheh Reza-Abad. The latter two sections probably extend older into the Aquitanian than the Dobaradar section, but likely include a hiatus near the base of the Burdigalian. The bounding contacts with the Upper Red and Lower Red Formations are shown to be diachronous.
Assessment of anatomical knowledge: Approaches taken by higher education institutions.

PubMed

Choudhury, Bipasha; Freemont, Anthony

2017-04-01

Assessment serves the primary function of determining a student's competence in a subject. Several different assessment formats are available for assessing anatomical skills, knowledge and understanding and, as assessment can drive learning, a careful selection of assessments can help to engender the correct deep learning facility required of the safe clinical practitioner. The aim of this review was to survey the published literature to see whether higher education institutions are taking an andragogical approach to assessment. Five databases (EMBASE, ERIC, Medline, PubMed, and Web of Knowledge) were searched using standardized search terms with two limits applied (English language, and 2000 to the present). Among the 2,094 papers found, 32 were deemed suitable for this review. Current literature on assessment can be categorized into the following themes: assessment driven learning, types of assessments, frequency of assessments, and use of images in assessments. The consensus is to use a variety of methods, written and practical, to assess anatomical knowledge and skill in different domains. Institutions aim for different levels of Bloom's taxonomy for students at similar stages of their medical degree. Formative assessments are used widely, in differing formats, with mostly good effects on the final examination grade. In conclusion, a wide variety of assessments, each aimed at a different level of Bloom's taxonomy, are used by different institutions. Clin. Anat. 30:290-299, 2017. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.
Practice as Research: A Fine Art Contextual Study

ERIC Educational Resources Information Center

Adams, Suze

2014-01-01

This paper examines the dynamic interplay between practice and theory in practice-led research in the visual arts. Building on recent debate around the issue and following appropriately rigorous models, the importance of locating a suitable methodology to adequately reflect the integrated process of research practice in written as well as visual…
High-throughput crystallization screening.

PubMed

Skarina, Tatiana; Xu, Xiaohui; Evdokimova, Elena; Savchenko, Alexei

2014-01-01

Protein structure determination by X-ray crystallography is dependent on obtaining a single protein crystal suitable for diffraction data collection. Due to this requirement, protein crystallization represents a key step in protein structure determination. The conditions for protein crystallization have to be determined empirically for each protein, making this step also a bottleneck in the structure determination process. Typical protein crystallization practice involves parallel setup and monitoring of a considerable number of individual protein crystallization experiments (also called crystallization trials). In these trials the aliquots of purified protein are mixed with a range of solutions composed of a precipitating agent, buffer, and sometimes an additive that have been previously successful in prompting protein crystallization. The individual chemical conditions in which a particular protein shows signs of crystallization are used as a starting point for further crystallization experiments. The goal is optimizing the formation of individual protein crystals of sufficient size and quality to make them suitable for diffraction data collection. Thus the composition of the primary crystallization screen is critical for successful crystallization.Systematic analysis of crystallization experiments carried out on several hundred proteins as part of large-scale structural genomics efforts allowed the optimization of the protein crystallization protocol and identification of a minimal set of 96 crystallization solutions (the "TRAP" screen) that, in our experience, led to crystallization of the maximum number of proteins.
Exploring the Utility of Sequential Analysis in Studying Informal Formative Assessment Practices

ERIC Educational Resources Information Center

Furtak, Erin Marie; Ruiz-Primo, Maria Araceli; Bakeman, Roger

2017-01-01

Formative assessment is a classroom practice that has received much attention in recent years for its established potential at increasing student learning. A frequent analytic approach for determining the quality of formative assessment practices is to develop a coding scheme and determine frequencies with which the codes are observed; however,…

Alligator, Alligator mississippiensis, habitat suitability index model

USGS Publications Warehouse

Waddle, J. Hardin

2017-01-01

The 2012 Coastal Master Plan utilized Habitat Suitability Indices (HSIs) to evaluate potential project effects on wildlife species. Even though HSIs quantify habitat condition, which may not directly correlate to species abundance, they remain a practical and tractable way to assess changes in habitat quality from various restoration actions. As part of the legislatively mandated five year update to the 2012 plan, the wildlife habitat suitability indices were updated and revised using literature and existing field data where available. The outcome of these efforts resulted in improved, or in some cases entirely new suitability indices. This report describes the development of the habitat suitability indices for the American alligator, Alligator mississippiensis.
Sugar-Responsive Layer-by-Layer Film Composed of Phenylboronic Acid-Appended Insulin and Poly(vinyl alcohol).

PubMed

Takei, Chihiro; Ohno, Yui; Seki, Tomohiro; Miki, Ryotaro; Seki, Toshinobu; Egawa, Yuya

2018-01-01

Previous studies have shown that reversible chemical bond formation between phenylboronic acid (PBA) and 1,3-diol can be utilized as the driving force for the preparation of layer-by-layer (LbL) films. The LbL films composed of a PBA-appended polymer and poly(vinyl alcohol) (PVA) disintegrated in the presence of sugar. This type of LbL films has been recognized as a promising approach for sugar-responsive drug release systems, but an issue preventing the practical application of LbL films is combining them with insulin. In this report, we have proposed a solution for this issue by using PBA-appended insulin as a component of the LbL film. We prepared two kinds of PBA-appended insulin derivatives and confirmed that they retained their hypoglycemic activity. The LbL films composed of PBA-appended insulin and PVA were successfully prepared through reversible chemical bond formation between the boronic acid moiety and the 1,3-diol of PVA. The LbL film disintegrated upon treatment with sugars. Based on the results presented herein, we discuss the suitability of the PBA moiety with respect to hypoglycemic activity, binding ability, and selectivity for D-glucose.
Recovering and recycling uranium used for production of molybdenum-99

DOE Office of Scientific and Technical Information (OSTI.GOV)

Reilly, Sean Douglas; May, Iain; Copping, Roy

A processes for recycling uranium that has been used for the production of molybdenum-99 involves irradiating a solution of uranium suitable for forming fission products including molybdenum-99, conditioning the irradiated solution to one suitable for inducing the formation of crystals of uranyl nitrate hydrates, then forming the crystals and a supernatant and then separating the crystals from the supernatant, thus using the crystals as a source of uranium for recycle. Molybdenum-99 is recovered from the supernatant using an adsorbent such as alumina. Another process involves irradiation of a solid target comprising uranium, forming an acidic solution from the irradiated targetmore » suitable for inducing the formation of crystals of uranyl nitrate hydrates, then forming the crystals and a supernatant and then separating the crystals from the supernatant, thus using the crystals as a source of uranium for recycle. Molybdenum-99 is recovered from the supernatant using an adsorbent such as alumina.« less
Informal mobile learning in nurse education and practice in remote areas--a case study from rural South Africa.

PubMed

Pimmer, Christoph; Brysiewicz, Petra; Linxen, Sebastian; Walters, Fiona; Chipps, Jennifer; Gröhbiel, Urs

2014-11-01

With the proliferation of portable digital technology, mobile learning is becoming increasingly popular in nursing education and practice. Most of the research in this field has been concentrated on small-scale projects in high income countries. Very little is known about the ways in which nurses and midwives use mobile technology in remote and resource poor areas in informal learning contexts in low and middle income countries. To address this gap, this study investigates whether nurses use mobile phones as effective educational tools in marginalized and remote areas, and if so, how and why. In rural South Africa, 16 nurses who attended an advanced midwifery education program, facilitators and clinical managers were interviewed about their use of digital mobile technology for learning. Techniques of qualitative content analysis were used to examine the data. Several rich "organically-grown", learning practices were identified: mobile phone usage facilitated (1) authentic problem solving; (2) reflective practice; (3) emotional support and belongingness; (4) the realization of unpredictable teaching situations; and (5) life-long learning. It is concluded that mobile phones, and the convergence of mobile phones and social media, in particular, change learning environments. In addition, these tools are suitable to connect learners and learning distributed in marginalized areas. Finally, a few suggestions are made about how these insights from informal settings can inform the development of more systematic mobile learning formats. Copyright © 2014 Elsevier Ltd. All rights reserved.
Best Practices of Online Undergraduate Spiritual Formation at Select Institutions of Christian Higher Education: A Delphi Study

ERIC Educational Resources Information Center

Ledbetter, Neal Brian

2017-01-01

The purpose of this research project was to establish consensus among experts regarding best practices of online undergraduate spiritual formation with a specific focus on the Council for Christian Colleges and Universities (CCCU). Prior to this project, there was no consensus regarding best practices of online spiritual formation at the…
GetData: A filesystem-based, column-oriented database format for time-ordered binary data

NASA Astrophysics Data System (ADS)

Wiebe, Donald V.; Netterfield, Calvin B.; Kisner, Theodore S.

2015-12-01

The GetData Project is the reference implementation of the Dirfile Standards, a filesystem-based, column-oriented database format for time-ordered binary data. Dirfiles provide a fast, simple format for storing and reading data, suitable for both quicklook and analysis pipelines. GetData provides a C API and bindings exist for various other languages. GetData is distributed under the terms of the GNU Lesser General Public License.
Tale of Two Science Teachers' Formative Assessment Practices in a Similar School Environment

ERIC Educational Resources Information Center

Sathasivam, Renuka V.; Daniel, Esther G. S.

2016-01-01

There is an accumulating research base that supports the effectiveness of formative assessment practices in enhancing the quality of educational outcomes, yet research findings seem to indicate sluggish implementation of these formative assessment strategies in the classrooms. Many factors influence teachers' formative assessment practices…
Formative Assessment: Responding to Your Students

ERIC Educational Resources Information Center

Tuttle, Harry Grover

2009-01-01

This "how-to" book on formative assessment is filled with practical suggestions for teachers who want to use formative assessment in their classrooms. With practical strategies, tools, and examples for teachers of all subjects and grade levels, this book shows you how to use formative assessment to promote successful student learning. Topics…
Alliinase and cysteine synthase transcription in developing garlic (Allium sativum L.) over time.

PubMed

Mitrová, Katarina; Svoboda, Pavel; Milella, Luigi; Ovesná, Jaroslava

2018-06-15

Garlic is a valuable source of healthy compounds, including secondary metabolites rich in sulphur such as cysteine sulphoxides (CSOs). Here, we present new qRT-PCR assays analysing the transcription of two genes encoding key enzymes in CSO biosynthetic pathways (cysteine synthase and alliinase) in developing garlic. We also identified a set of genes (ACT I, GAPDH, and TUB) to use as transcription normalisation controls. We showed that the (normalised) transcription of both enzymes was highest during sprouting and decreased significantly in fully developed leaves, which are the major CSO-producing organs. Transcriptional activity further declined at the end of the growing season. Different cultivars show similar sulphur metabolism gene expression when European garlics were compared to Chinese and American genotypes. The qRT-PCR assays presented are also suitable for investigating the effects of agricultural practices on CSO formation in garlic to satisfy consumer demands. Copyright © 2017. Published by Elsevier Ltd.
Work Domain Analysis Methodology for Development of Operational Concepts for Advanced Reactors

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hugo, Jacques

2015-05-01

This report describes a methodology to conduct a Work Domain Analysis in preparation for the development of operational concepts for new plants. This method has been adapted from the classical method described in the literature in order to better deal with the uncertainty and incomplete information typical of first-of-a-kind designs. The report outlines the strategy for undertaking a Work Domain Analysis of a new nuclear power plant and the methods to be used in the development of the various phases of the analysis. Basic principles are described to the extent necessary to explain why and how the classical method wasmore » adapted to make it suitable as a tool for the preparation of operational concepts for a new nuclear power plant. Practical examples are provided of the systematic application of the method and the various presentation formats in the operational analysis of advanced reactors.« less
Contemporary research findings on dentine remineralization.

PubMed

Zhong, Bo; Peng, Ce; Wang, Guanhong; Tian, Lili; Cai, Qiang; Cui, Fuzhai

2015-09-01

Dentine remineralization is important for the treatment of dentine caries and the bonding durability of dentine and resin materials in clinical practice. Early studies of dentine remineralization were mostly based on the classical pathway of crystallization, which involves large-scale deposition of calcium phosphate crystals on collagen and is achieved in a liquid environment containing mineral ions. Results from these studies were unsatisfactory and not suitable for clinical application because they did not simulate the ordering of hydroxyapatite in the collagen fibres of natural teeth. As studies on collagen type I and non-collagenous proteins have advanced, dentine biomimetic remineralization has become a popular research topic and has shifted to processes involving intrafibrillar remineralization, which is more similar to natural tooth formation. The objective of this review was to summarize current theory and research progress as it relates to dentine remineralization. Copyright © 2013 John Wiley & Sons, Ltd.
To envision a new particle or change an existing law? Hypothesis formation and anomaly resolution for the curious case of the β decay spectrum

NASA Astrophysics Data System (ADS)

Gauderis, Tjerk

2014-02-01

This paper addresses the question of how scientists determine which type of hypothesis is most suitable for tackling a particular problem by examining the historical case of the anomalous β spectrum in early nuclear physics (1927-1934), a puzzle that occasioned the most diverse hypotheses amongst physicists at the time. It is shown that such determinations are most often implicitly informed by scientists' individual perspectives on the structural relations between the various elements of the theory and the problem at hand. In addition to this main result, it is suggested that Wolfgang Pauli's neutrino idea may well have been an adaptation of Ernst Rutherford's original and older neutron idea, which would provide evidence that the adaptation of older ideas is a more common practice than is often thought.
Low-cost solar array project progress and plans

NASA Technical Reports Server (NTRS)

Callaghan, W. T.

1981-01-01

The considered project is part of the DOE Photovoltaic Technology and Market Development Program. This program is concerned with the development and the utilization of cost-competitive photovoltaic systems. The project has the objective to develop, by 1986, the national capability to manufacture low-cost, long-life photovoltaic arrays at production rates that will realize economies of scale, and at a price of less than $0.70/watt. The array performance objectives include an efficiency greater than 10% and an operating lifetime longer than 20 years. The objective of the silicon material task is to establish the practicality of processes for producing silicon suitable for terrestrial photovoltaic applications at a price of $14/kg. The large-area sheet task is concerned with the development of process technology for sheet formation. Low-cost encapsulation material systems are being developed in connection with the encapsulation task. Another project goal is related to the development of economical process sequences.
3D-Printed Scaffolds and Biomaterials: Review of Alveolar Bone Augmentation and Periodontal Regeneration Applications

PubMed Central

Asa'ad, Farah; Giannì, Aldo Bruno; Giannobile, William V.; Rasperini, Giulio

2016-01-01

To ensure a successful dental implant therapy, the presence of adequate vertical and horizontal alveolar bone is fundamental. However, an insufficient amount of alveolar ridge in both dimensions is often encountered in dental practice due to the consequences of oral diseases and tooth loss. Although postextraction socket preservation has been adopted to lessen the need for such invasive approaches, it utilizes bone grafting materials, which have limitations that could negatively affect the quality of bone formation. To overcome the drawbacks of routinely employed grafting materials, bone graft substitutes such as 3D scaffolds have been recently investigated in the dental field. In this review, we highlight different biomaterials suitable for 3D scaffold fabrication, with a focus on “3D-printed” ones as bone graft substitutes that might be convenient for various applications related to implant therapy. We also briefly discuss their possible adoption for periodontal regeneration. PMID:27366149
Dry-Spun Silk Produces Native-Like Fibroin Solutions

PubMed Central

2016-01-01

Silk’s outstanding mechanical properties and energy efficient solidification mechanisms provide inspiration for biomaterial self-assembly as well as offering a diverse platform of materials suitable for many biotechnology applications. Experiments now reveal that the mulberry silkworm Bombyx mori secretes its silk in a practically “unspun” state that retains much of the solvent water and exhibits a surprisingly low degree of molecular order (β-sheet crystallinity) compared to the state found in a fully formed and matured fiber. These new observations challenge the general understanding of silk spinning and in particular the role of the spinning duct for structure development. Building on this discovery we report that silk spun in low humidity appears to arrest a molecular annealing process crucial for β-sheet formation. This, in turn, has significant positive implications, enabling the production of a high fidelity reconstituted silk fibroin with properties akin to the gold standard of unspun native silk. PMID:27526078
A new approach to accelerated drug-excipient compatibility testing.

PubMed

Sims, Jonathan L; Carreira, Judith A; Carrier, Daniel J; Crabtree, Simon R; Easton, Lynne; Hancock, Stephen A; Simcox, Carol E

2003-01-01

The purpose of this study was to develop a method of qualitatively predicting the most likely degradants in a formulation or probing specific drug-excipient interactions in a significantly shorter time frame than the typical 1 month storage testing. In the example studied, accelerated storage testing of a solid dosage form at 50 degrees C, the drug substance SB-243213-A degraded via the formation of two oxidative impurities. These impurities reached a level of 1% PAR after 3 months. Various stressing methods were examined to try to recreate this degradation and in doing so provide a practical and reliable method capable of predicting drug-excipient interactions. The technique developed was able to mimic the 1-month's accelerated degradation in just 1 hr. The method was suitable for automated analysis, capable of multisample stressing, and ideal for use in drug-excipient compatibility screening.
An empirical model for ion formation from polymer surfaces during analysis by secondary ion mass spectrometry

NASA Astrophysics Data System (ADS)

Leggett, Graham J.; Vickerman, John C.

1992-12-01

Some of the models that have been proposed to account for ion formation during sputtering are reviewed. Particular attention is paid to models describing polyatomic ion formation. Aspects of these models that are relevant to ion formation from molecular materials are discussed. Reports describing the sputtering of polymeric materials are reviewed, and the bearing of recent tandem studies on attempts to formulate a model for ion formation from polymer materials is discussed. Some of the characteristics that a suitable model would possess are identified from the experimental data.
Agile beam laser radar using computational imaging for robotic perception

NASA Astrophysics Data System (ADS)

Powers, Michael A.; Stann, Barry L.; Giza, Mark M.

2015-05-01

This paper introduces a new concept that applies computational imaging techniques to laser radar for robotic perception. We observe that nearly all contemporary laser radars for robotic (i.e., autonomous) applications use pixel basis scanning where there is a one-to-one correspondence between world coordinates and the measurements directly produced by the instrument. In such systems this is accomplished through beam scanning and/or the imaging properties of focal-plane optics. While these pixel-basis measurements yield point clouds suitable for straightforward human interpretation, the purpose of robotic perception is the extraction of meaningful features from a scene, making human interpretability and its attendant constraints mostly unnecessary. The imposing size, weight, power and cost of contemporary systems is problematic, and relief from factors that increase these metrics is important to the practicality of robotic systems. We present a system concept free from pixel basis sampling constraints that promotes efficient and adaptable sensing modes. The cornerstone of our approach is agile and arbitrary beam formation that, when combined with a generalized mathematical framework for imaging, is suited to the particular challenges and opportunities of robotic perception systems. Our hardware concept looks toward future systems with optical device technology closely resembling modern electronically-scanned-array radar that may be years away from practicality. We present the design concept and results from a prototype system constructed and tested in a laboratory environment using a combination of developed hardware and surrogate devices for beam formation. The technological status and prognosis for key components in the system is discussed.
30 CFR 817.114 - Revegetation: Mulching and other soil stabilizing practices.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Revegetation: Mulching and other soil... STANDARDS-UNDERGROUND MINING ACTIVITIES § 817.114 Revegetation: Mulching and other soil stabilizing practices. Suitable mulch and other soil stabilizing practices shall be used on all areas that have been...
30 CFR 817.114 - Revegetation: Mulching and other soil stabilizing practices.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Revegetation: Mulching and other soil... STANDARDS-UNDERGROUND MINING ACTIVITIES § 817.114 Revegetation: Mulching and other soil stabilizing practices. Suitable mulch and other soil stabilizing practices shall be used on all areas that have been...

30 CFR 816.114 - Revegetation: Mulching and other soil stabilizing practices.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Revegetation: Mulching and other soil... STANDARDS-SURFACE MINING ACTIVITIES § 816.114 Revegetation: Mulching and other soil stabilizing practices. Suitable mulch and other soil stabilizing practices shall be used on all areas that have been regraded and...
30 CFR 817.114 - Revegetation: Mulching and other soil stabilizing practices.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Revegetation: Mulching and other soil... STANDARDS-UNDERGROUND MINING ACTIVITIES § 817.114 Revegetation: Mulching and other soil stabilizing practices. Suitable mulch and other soil stabilizing practices shall be used on all areas that have been...
30 CFR 816.114 - Revegetation: Mulching and other soil stabilizing practices.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Revegetation: Mulching and other soil... STANDARDS-SURFACE MINING ACTIVITIES § 816.114 Revegetation: Mulching and other soil stabilizing practices. Suitable mulch and other soil stabilizing practices shall be used on all areas that have been regraded and...
30 CFR 816.114 - Revegetation: Mulching and other soil stabilizing practices.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Revegetation: Mulching and other soil... STANDARDS-SURFACE MINING ACTIVITIES § 816.114 Revegetation: Mulching and other soil stabilizing practices. Suitable mulch and other soil stabilizing practices shall be used on all areas that have been regraded and...
30 CFR 817.114 - Revegetation: Mulching and other soil stabilizing practices.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Revegetation: Mulching and other soil... STANDARDS-UNDERGROUND MINING ACTIVITIES § 817.114 Revegetation: Mulching and other soil stabilizing practices. Suitable mulch and other soil stabilizing practices shall be used on all areas that have been...
30 CFR 816.114 - Revegetation: Mulching and other soil stabilizing practices.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Revegetation: Mulching and other soil... STANDARDS-SURFACE MINING ACTIVITIES § 816.114 Revegetation: Mulching and other soil stabilizing practices. Suitable mulch and other soil stabilizing practices shall be used on all areas that have been regraded and...
30 CFR 817.114 - Revegetation: Mulching and other soil stabilizing practices.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Revegetation: Mulching and other soil... STANDARDS-UNDERGROUND MINING ACTIVITIES § 817.114 Revegetation: Mulching and other soil stabilizing practices. Suitable mulch and other soil stabilizing practices shall be used on all areas that have been...
30 CFR 816.114 - Revegetation: Mulching and other soil stabilizing practices.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Revegetation: Mulching and other soil... STANDARDS-SURFACE MINING ACTIVITIES § 816.114 Revegetation: Mulching and other soil stabilizing practices. Suitable mulch and other soil stabilizing practices shall be used on all areas that have been regraded and...
Lived Relationality as Fulcrum for Pedagogical-Ethical Practice

ERIC Educational Resources Information Center

Saevi, Tone

2011-01-01

What is the core of pedagogical practice? Which qualities are primary to the student-teacher relationship? What is a suitable language for pedagogical practice? What might be the significance of an everyday presentational pedagogical act like for example the glance of a teacher? The pedagogical relation as lived relationality experientially…
Authentic Practices as Contexts for Learning to Draw Inferences beyond Correlated Data

ERIC Educational Resources Information Center

Dierdorp, Adri; Bakker, Arthur; Eijkelhof, Harrie; van Maanen, Jan

2011-01-01

To support 11th-grade students' informal inferential reasoning, a teaching and learning strategy was designed based on authentic practices in which professionals use correlation or linear regression. These practices included identifying suitable physical training programmes, dyke monitoring, and the calibration of measurement instruments. The…
Retrofitting the Low Impact Development Practices into Developed Urban areas Including Barriers and Potential Solution

NASA Astrophysics Data System (ADS)

Shafique, Muhammad; Kim, Reeho

2017-06-01

Low impact development (LID)/green infrastructure (GI) practices have been identified as the sustainable practices of managing the stormwater in urban areas. Due to the increasing population, most of the cities are more developing which results in the change of natural area into impervious areas (roads, buildings etc.). Moreover, urbanization and climate change are causing many water-related problems and making over cities unsafe and insecure. Under these circumstances, there is a need to introduce new stormwater management practices into developed cities to reduce the adverse impacts of urbanization. For this purpose, retrofitting low impact development practices demands more attention to reduce these water-related problems and trying to make our cities sustainable. In developed areas, there is a little space is available for the retrofitting of LID practices for the stormwater management. Therefore, the selection of an appropriate place to retrofitting LID practices needs more concern. This paper describes the successfully applied retrofitting LID practices around the globe. It also includes the process of applying retrofitting LID practices at the suitable place with the suitable combination. Optimal places for the retrofitting of different LID practices are also mentioned. This paper also highlights the barriers and potential solutions of retrofitting LID practices in urban areas.
Brief dynamic psychotherapy : patient suitability, treatment length, and outcome.

PubMed

Høglend, P; Sørlie, T; Heyerdahl, O; Sørbye, O; Amlo, S

1993-01-01

Forty-three neurotic outpatients were treated according to common practice with dynamic psychotherapy of brief to moderate length. Suitability for brief dynamic psychotherapy, measured by quality of interpersonal relations, was independent of DSM-III diagnoses. Suitability was a significant direct predictor of symptomatic and dynamic change 2 and 4 years after therapy. Treatment length added no explained outcome variance over patient characteristics. However, patients with high suitability had a relatively more favorable dynamic outcome with a brief, focused treatment approach, whereas patients with low suitability had relatively more favorable outcome with a longer, less focused treatment of more than 1 year's duration. The significant interaction emerged at 4-year follow-up.
Evaluation of Lithofacies Up-Scaling Methods for Probabilistic Prediction of Carbon Dioxide Behavior

NASA Astrophysics Data System (ADS)

Park, J. Y.; Lee, S.; Lee, Y. I.; Kihm, J. H.; Kim, J. M.

2017-12-01

Behavior of carbon dioxide injected into target reservoir (storage) formations is highly dependent on heterogeneities of geologic lithofacies and properties. These heterogeneous lithofacies and properties basically have probabilistic characteristics. Thus, their probabilistic evaluation has to be implemented properly into predicting behavior of injected carbon dioxide in heterogeneous storage formations. In this study, a series of three-dimensional geologic modeling is performed first using SKUA-GOCAD (ASGA and Paradigm) to establish lithofacies models of the Janggi Conglomerate in the Janggi Basin, Korea within a modeling domain. The Janggi Conglomerate is composed of mudstone, sandstone, and conglomerate, and it has been identified as a potential reservoir rock (clastic saline formation) for geologic carbon dioxide storage. Its lithofacies information are obtained from four boreholes and used in lithofacies modeling. Three different up-scaling methods (i.e., nearest to cell center, largest proportion, and random) are applied, and lithofacies modeling is performed 100 times for each up-scaling method. The lithofacies models are then compared and analyzed with the borehole data to evaluate the relative suitability of the three up-scaling methods. Finally, the lithofacies models are converted into coarser lithofacies models within the same modeling domain with larger grid blocks using the three up-scaling methods, and a series of multiphase thermo-hydrological numerical simulation is performed using TOUGH2-MP (Zhang et al., 2008) to predict probabilistically behavior of injected carbon dioxide. The coarser lithofacies models are also compared and analyzed with the borehole data and finer lithofacies models to evaluate the relative suitability of the three up-scaling methods. Three-dimensional geologic modeling, up-scaling, and multiphase thermo-hydrological numerical simulation as linked methodologies presented in this study can be utilized as a practical probabilistic evaluation tool to predict behavior of injected carbon dioxide and even to analyze its leakage risk. This work was supported by the Korea CCS 2020 Project of the Korea Carbon Capture and Sequestration R&D Center (KCRC) funded by the National Research Foundation (NRF), Ministry of Science and ICT (MSIT), Korea.
Habitat Suitability Index Models: Veery

USGS Publications Warehouse

Sousa, Patrick J.

1982-01-01

Habitat preferences and species characteristics of the veery (Catharus fuscesens) are described in this publication. It is one of a series of Habitat Suitability Index (HSI) models and was developed through an analysis of available scientific data on the habitat requirements of the veery. Habitat use information is presented in a review of the literature, followed by the development of an HSI model. The model is presented in three formats: graphic; word; and mathematical. Suitability index graphs quantify the species-habitat relationship. These data are synthesized into a model designed to provide information for use in impact assessment and habitat management.
Format guidelines to make them vivid, intuitive, and visual: use simple formatting rules to optimize usability and accessibility of clinical practice guidelines.

PubMed

Versloot, Judith; Grudniewicz, Agnes; Chatterjee, Ananda; Hayden, Leigh; Kastner, Monika; Bhattacharyya, Onil

2015-06-01

We present simple formatting rules derived from an extensive literature review that can improve the format of clinical practice guidelines (CPGs), and potentially increase the likelihood of being used. We recently conducted a review of the literature from medicine, psychology, design, and human factors engineering on characteristics of guidelines that are associated with their use in practice, covering both the creation and communication of content. The formatting rules described in this article are derived from that review. The formatting rules are grouped into three categories that can be easily applied to CPGs: first, Vivid: make it stand out; second, Intuitive: match it to the audience's expectations, and third, Visual: use alternatives to text. We highlight rules supported by our broad literature review and provide specific 'how to' recommendations for individuals and groups developing evidence-based materials for clinicians. The way text documents are formatted influences their accessibility and usability. Optimizing the formatting of CPGs is a relatively inexpensive intervention and can be used to facilitate the dissemination of evidence in healthcare. Applying simple formatting principles to make documents more vivid, intuitive, and visual is a practical approach that has the potential to influence the usability of guidelines and to influence the extent to which guidelines are read, remembered, and used in practice.
Suitability of ultra-high performance liquid chromatography for the determination of fat-soluble nutritional status (vitamins A, E, D, and individual carotenoids).

PubMed

Granado-Lorencio, F; Herrero-Barbudo, C; Blanco-Navarro, I; Pérez-Sacristán, B

2010-06-01

Our aim was to assess the suitability of ultra-high performance liquid chromatography (UHPLC) for the simultaneous determination of biomarkers of vitamins A (retinol, retinyl esters), E (alpha- and gamma-tocopherol), D (25-OH-vitamin D), and the major carotenoids in human serum to be used in clinical practice. UHPLC analysis was performed on HSS T3 column (2.1 x 100 mm; 1.8 microm) using gradient elution and UV-VIS detection. The system allows the simultaneous determination of retinol, retinyl palmitate, 25-OH-vitamin D, alpha- and gamma-tocopherol, lutein plus zeaxanthin, alpha-carotene, beta-carotene, alpha- and beta-cryptoxanthin and lycopene. The method showed a good linearity over the physiological range with an adequate accuracy in samples from quality control programs. Suitability of the method in clinical practice was tested by analyzing samples (n = 286) from patients. In conclusion, UHPLC constitutes a reliable approach for nutrient/biomarker profiling allowing the rapid, simultaneous and low-cost determination of vitamins A, E, and D (including vitamers and ester forms) and the major carotenoids in clinical practice.
Making Moves: Formative Assessment in Mathematics

ERIC Educational Resources Information Center

Duckor, Brent; Holmberg, Carrie; Becker, Joanne Rossi

2017-01-01

Research on teacher professional learning has shown that formative assessment can improve student learning more than most instructional practices. Empirical evidence indicates that thoughtfully implemented formative assessment practices improve students' learning, increase students' scores, and narrow achievement gaps between low-achieving…
Green Remediation Best Management Practices: Overview of EPA's Methodology to Address the Environmental Footprint of Site Cleanup

EPA Pesticide Factsheets

Contaminated site cleanups involving complex activities may benefit from a detailed environmental footprint analysis to inform decision-making about application of suitable best management practices for greener cleanups.
Feasibility of Lateral Emplacement in Very Deep Borehole Disposal of High Level Nuclear Waste

DTIC Science & Technology

2010-06-01

superior isolation of the waste (mitigating proliferation, terrorist and human intrusion concerns), the impermeability of available geologic formations ...Continental U.S. (Courtesy “The Future of Geothermal Energy” by MIT)7 2. Age of the granitic formation (Figure 1-4) 3. Proximity to rail, barge, and...state are of particular interest with their access to the ancient and stable Canadian granite shield, but access to suitable formations is found in
Methods of making copper selenium precursor compositions with a targeted copper selenide content and precursor compositions and thin films resulting therefrom

DOEpatents

Curtis, Calvin J [Lakewood, CO; Miedaner, Alexander [Boulder, CO; van Hest, Marinus Franciscus Antonius Maria; Ginley, David S [Evergreen, CO; Leisch, Jennifer [Denver, CO; Taylor, Matthew [West Simsbury, CT; Stanbery, Billy J [Austin, TX

2011-09-20

Precursor compositions containing copper and selenium suitable for deposition on a substrate to form thin films suitable for semi-conductor applications. Methods of forming the precursor compositions using primary amine solvents and methods of forming the thin films wherein the selection of temperature and duration of heating controls the formation of a targeted species of copper selenide.

Corrosion resistant coatings suitable for elevated temperature application

DOEpatents

Chan, Kwai S [San Antonio, TX; Cheruvu, Narayana Sastry [San Antonio, TX; Liang, Wuwei [Austin, TX

2012-07-31

The present invention relates to corrosion resistance coatings suitable for elevated temperature applications, which employ compositions of iron (Fe), chromium (Cr), nickel (Ni) and/or aluminum (Al). The compositions may be configured to regulate the diffusion of metals between a coating and a substrate, which may then influence coating performance, via the formation of an inter-diffusion barrier layer. The inter-diffusion barrier layer may comprise a face-centered cubic phase.
Evaluating Design-Based Formative Assessment Practices in Outdoor Science Teaching

ERIC Educational Resources Information Center

Hartmeyer, Rikke; Stevenson, Matt P.; Bentsen, Peter

2016-01-01

Background and purpose: Research in formative assessment often pays close attention to the strategies which can be used by teachers. However, less emphasis in the literature seems to have been paid to study the application of formative assessment designs in practice. In this paper, we argue that a formative assessment design that we call…
ElVisML: an open data format for the exchange and storage of electrophysiological data in ophthalmology.

PubMed

Strasser, Torsten; Peters, Tobias; Jägle, Herbert; Zrenner, Eberhart

2018-02-01

The ISCEV standards and recommendations for electrophysiological recordings in ophthalmology define a set of protocols with stimulus parameters, acquisition settings, and recording conditions, to unify the data and enable comparability of results across centers. Up to now, however, there are no standards to define the storage and exchange of such electrophysiological recordings. The aim of this study was to develop an open standard data format for the exchange and storage of visual electrophysiological data (ElVisML). We first surveyed existing data formats for biomedical signals and examined their suitability for electrophysiological data in ophthalmology. We then compared the suitability of text-based and binary formats, as well as encoding in Extensible Markup Language (XML) and character/comma-separated values. The results of the methodological consideration led to the development of ElVisML with an XML-encoded text-based format. This allows referential integrity, extensibility, the storing of accompanying units, as well as ensuring confidentiality and integrity of the data. A visualization of ElVisML documents (ElVisWeb) has additionally been developed, which facilitates the exchange of recordings on mailing lists and allows open access to data along with published articles. The open data format ElVisML ensures the quality, validity, and integrity of electrophysiological data transmission and storage as well as providing manufacturer-independent access and long-term archiving in a future-proof format. Standardization of the format of such neurophysiology data would promote the development of new techniques and open software for the use of neurophysiological data in both clinic and research.
The Drake Equation

NASA Astrophysics Data System (ADS)

Vakoch, Douglas A.; Dowd, Matthew F.; Drake, Frank

2015-07-01

List of contributors; Foreword Frank Drake; Preface; Acknowledgements; Introduction Steven Dick; 1. Rate of formation of stars suitable for the development of intelligent life, R*, pre-1961 David DeVorkin; 2. Rate of formation of stars suitable for the development of intelligent life, R*, 1961 to the present Patrick François and Danielle Briot; 3. Fraction of stars with planetary systems, fp, pre-1961 Matthew F. Dowd; 4. Fraction of stars with planetary systems, fp, 1961 to the present Chris Impey; 5. Number of planets, per solar system, with an environment suitable for life, ne, pre-1961 Florence Raulin Cerceau; 6. Number of planets, per solar system, with an environment suitable for life, ne, 1961 to the present Danielle Briot and Jean Schneider; 7. Fraction of suitable planets on which life actually appears, fl, pre-1961 Stephané Tirard; 8. Fraction of suitable planets on which life actually appears, fl, 1961 to the present David J. Des Marais; 9. Fraction of life-bearing planets on which intelligent life emerges, fl, pre-1961 Michael Crowe; 10. Fraction of life-bearing planets on which intelligent life emerges, fl, 1961 to the present Lori Marino; 11. Fraction of civilizations that develop a technology that releases detectable signs of their existence into space, fc, pre-1961 Florence Raulin Cerceau; 12. Fraction of civilizations that develop a technology that releases detectable signs of their existence into space, fc, 1961 to the present Seth Shostak; 13. Length of time such civilizations release detectable signals into space, L, pre-1961 David Dunér; 14. Length of time such civilizations release detectable signals into space, L, 1961 to the present Garry Chick; Afterword Paul Davies; Index.
16 CFR 1500.126 - Substances determined to be “special hazards.”

Code of Federal Regulations, 2014 CFR

2014-01-01

....â 1500.126 Section 1500.126 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL... for a particular hazardous substance intended or packaged in a form suitable for use in the household... intended, or packaged in a form suitable, for use in the household or by children that fails to bear a...
16 CFR 1500.126 - Substances determined to be “special hazards.”

Code of Federal Regulations, 2010 CFR

2010-01-01

....â 1500.126 Section 1500.126 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL... for a particular hazardous substance intended or packaged in a form suitable for use in the household... intended, or packaged in a form suitable, for use in the household or by children that fails to bear a...
16 CFR 1500.126 - Substances determined to be “special hazards.”

Code of Federal Regulations, 2012 CFR

2012-01-01

....â 1500.126 Section 1500.126 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL... for a particular hazardous substance intended or packaged in a form suitable for use in the household... intended, or packaged in a form suitable, for use in the household or by children that fails to bear a...
16 CFR 1500.126 - Substances determined to be “special hazards.”

Code of Federal Regulations, 2011 CFR

2011-01-01

....â 1500.126 Section 1500.126 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL... for a particular hazardous substance intended or packaged in a form suitable for use in the household... intended, or packaged in a form suitable, for use in the household or by children that fails to bear a...
External Standards or Standard Addition? Selecting and Validating a Method of Standardization

NASA Astrophysics Data System (ADS)

Harvey, David T.

2002-05-01

A common feature of many problem-based laboratories in analytical chemistry is a lengthy independent project involving the analysis of "real-world" samples. Students research the literature, adapting and developing a method suitable for their analyte, sample matrix, and problem scenario. Because these projects encompass the complete analytical process, students must consider issues such as obtaining a representative sample, selecting a method of analysis, developing a suitable standardization, validating results, and implementing appropriate quality assessment/quality control practices. Most textbooks and monographs suitable for an undergraduate course in analytical chemistry, however, provide only limited coverage of these important topics. The need for short laboratory experiments emphasizing important facets of method development, such as selecting a method of standardization, is evident. The experiment reported here, which is suitable for an introductory course in analytical chemistry, illustrates the importance of matrix effects when selecting a method of standardization. Students also learn how a spike recovery is used to validate an analytical method, and obtain a practical experience in the difference between performing an external standardization and a standard addition.
An Argument for Formative Assessment with Science Learning Progressions

ERIC Educational Resources Information Center

Alonzo, Alicia C.

2018-01-01

Learning progressions--particularly as defined and operationalized in science education--have significant potential to inform teachers' formative assessment practices. In this overview article, I lay out an argument for this potential, starting from definitions for "formative assessment practices" and "learning progressions"…
The validity of a professional competence tool for physiotherapy students in simulation-based clinical education: a Rasch analysis.

PubMed

Judd, Belinda K; Scanlan, Justin N; Alison, Jennifer A; Waters, Donna; Gordon, Christopher J

2016-08-05

Despite the recent widespread adoption of simulation in clinical education in physiotherapy, there is a lack of validated tools for assessment in this setting. The Assessment of Physiotherapy Practice (APP) is a comprehensive tool used in clinical placement settings in Australia to measure professional competence of physiotherapy students. The aim of the study was to evaluate the validity of the APP for student assessment in simulation settings. A total of 1260 APPs were collected, 971 from students in simulation and 289 from students in clinical placements. Rasch analysis was used to examine the construct validity of the APP tool in three different simulation assessment formats: longitudinal assessment over 1 week of simulation; longitudinal assessment over 2 weeks; and a short-form (25 min) assessment of a single simulation scenario. Comparison with APPs from 5 week clinical placements in hospital and clinic-based settings were also conducted. The APP demonstrated acceptable fit to the expectations of the Rasch model for the 1 and 2 week clinical simulations, exhibiting unidimensional properties that were able to distinguish different levels of student performance. For the short-form simulation, nine of the 20 items recorded greater than 25 % of scores as 'not-assessed' by clinical educators which impacted on the suitability of the APP tool in this simulation format. The APP was a valid assessment tool when used in longitudinal simulation formats. A revised APP may be required for assessment in short-form simulation scenarios.
Novel azepino-perylenebisimides: synthesis, structure, and properties.

PubMed

Mishra, Ruchika; Panini, Piyush; Sankar, Jeyaraman

2014-08-01

The first example of an azepine ring formation by counterintuitive nucleophilic participation of DBU was observed at the sterically crowded bay area of electron-deficient perylenebisimide (PBI). This is also a rare example of the formation of a seven-membered ring via two consecutive C-N bond formations in a single step. Azepino-PBIs reveal panchromatic absorption covering the whole visible region. Further novelty of these PBIs lies within the fact that their photophysical characteristics can easily be modulated by suitable substituents.
A model of formative assessment practice in secondary science classrooms using an audience response system

NASA Astrophysics Data System (ADS)

Shirley, Melissa L.

Formative assessment involves the probing of students' ideas to determine their level of understanding during the instructional sequence. Often conceptualized as a cycle, formative assessment consists of the teacher posing an instructional task to students, collecting data about student understanding, and engaging in follow-up strategies such as clarifying student understanding and adjusting instruction to meet learning needs. Despite having been shown to increase student achievement in a variety of classroom settings, formative assessment remains a relative weak area of teacher practice. Methods that enhance formative assessment strategies may therefore have a positive effect on student achievement. Audience response systems comprise a broad category of technologies that support richer classroom interaction and have the potential to facilitate formative assessment. Results from a large national research study, Classroom Connectivity in Promoting Mathematics and Science Achievement (CCMS), show that students in algebra classrooms where the teacher has implemented a type of audience response system experience significantly higher achievement gains compared to a control group. This suggests a role for audience response systems in promoting rich formative assessment. The importance of incorporating formative assessment strategies into regular classroom practice is widely recognized. However, it remains challenging to identify whether rich formative assessment is occurring during a particular class session. This dissertation uses teacher interviews and classroom observations to develop a fine-grained model of formative assessment in secondary science classrooms employing a type of audience response system. This model can be used by researchers and practitioners to characterize components of formative assessment practice in classrooms. A major component of formative assessment practice is the collection and aggregation of evidence of student learning. This dissertation proposes the use of the assessment episode to characterize extended cycles of teacher-student interactions. Further, the model presented here provides a new methodology to describe the teacher's use of questioning and subsequent classroom discourse to uncover student learning. Additional components of this model of formative assessment focus on the recognition of student learning by the teacher and the resultant changes in instructional practice to enhance student understanding.
Brief Dynamic Psychotherapy

PubMed Central

HØGLEND, PER; SØRLIE, TORE; HEYERDAHL, OSCAR; SØRBYE, ØYSTEIN; AMLO, SVEIN

1993-01-01

Forty-three neurotic outpatients were treated according to common practice with dynamic psychotherapy of brief to moderate length. Suitability for brief dynamic psychotherapy, measured by quality of interpersonal relations, was independent of DSM-III diagnoses. Suitability was a significant direct predictor of symptomatic and dynamic change 2 and 4 years after therapy. Treatment length added no explained outcome variance over patient characteristics. However, patients with high suitability had a relatively more favorable dynamic outcome with a brief, focused treatment approach, whereas patients with low suitability had relatively more favorable outcome with a longer, less focused treatment of more than 1 year’s duration. The significant interaction emerged at 4-year follow-up. PMID:22700148
The Validity of Multiple Choice Practical Examinations as an Alternative to Traditional Free Response Examination Formats in Gross Anatomy

ERIC Educational Resources Information Center

Shaibah, Hassan Sami; van der Vleuten, Cees P. M.

2013-01-01

Traditionally, an anatomy practical examination is conducted using a free response format (FRF). However, this format is resource-intensive, as it requires a relatively large time investment from anatomy course faculty in preparation and grading. Thus, several interventions have been reported where the response format was changed to a selected…
Effects of Two Practice Style Formats on Fifth Grade Students' Motor Skill Performance and Task Engagement

ERIC Educational Resources Information Center

Chatoupis, Constantine C.; Vagenas, George

2017-01-01

We investigated the effectiveness of two teaching formats that fall under the canopy of Mosston and Ashworth's (2008) practice style, on fifth grade students' motor skill performance and task engagement. Both formats are also known as station teaching or learning centers. In the teacher-rotated format (TR), the teacher decides the amount of time…
Reconnaissance geologic map of the Harrat Tuffil Quadrangle, sheet 20/39 B, Kingdom of Saudi Arabia

USGS Publications Warehouse

Pallister, John S.

1983-01-01

A perlite deposit at Jabal Shama may be suitable as light aggregate for concrete. Sparse barite veins were discovered in the lower Shumaysi formation. Relatively small deposits of Sa’diyah formation marble may be of interest for local use in building or cement. The Jurassic dolomite is locally quite pure and may have economic applications.
Payette Russet: A dual-purpose potato cultivar with cold-sweetening resistance, low acrylamide formation, and resistance to late blight and Potato Virus Y

USDA-ARS?s Scientific Manuscript database

Payette Russet is a full season, russet-skinned potato cultivar notable for its cold-sweetening resistance and associated low acrylamide formation, making it a cultivar suitable for processing into French fries and other potato products. Low concentrations of asparagine and glucose in tubers of Pay...
Electronic structure, defect formation energy, and photovoltaic properties of wurtzite-derived CuGaO2

NASA Astrophysics Data System (ADS)

Okumura, H.; Sato, K.; Kakeshita, T.

2018-04-01

Wurtzite-derived CuGaO2 (β-CuGaO2) is a recently synthesized oxide and expected as a candidate material for photovoltaic solar cells. In this paper, we propose computational material design concerning β-CuGaO2 based on the first-principles calculations. We perform hybrid calculations by using the VASP code. It is predicted that β-CuGaO2 has a direct bandgap (Eg = 1.56 eV), which is nearly optimal for high efficiency solar cells. The calculated formation energy of Cu vacancy (VCu) is very small and can be negative depending on the Fermi level. This result reasonably explains the observed p-type conduction in this material. As for the n-type doping, Cd doping could be suitable; however, VCu formation needs to be repressed in order to realize n-type β-CuGaO2. It is also shown that halogen impurities are not suitable for n-type β-CuGaO2 because of their large formation energy. Band alignment between β-CuGaO2 and ZnO is predicted to be type-II, leading to a suggestion of photovoltaic device based on the heterojunction.
4 Formative Assessment Practices That Make a Difference in Classrooms

ERIC Educational Resources Information Center

Northwest Evaluation Association, 2016

2016-01-01

Teachers know they need to focus on practices that can make the biggest difference to their students--but which practices have a track record of improving learning and growth? Read the second article in our five-part series to discover specific classroom formative assessment practices proven to take students from zoned out to tuned in. You'll…

Conservative Analytical Collision Probabilities for Orbital Formation Flying

NASA Technical Reports Server (NTRS)

Carpenter, J. Russell

2004-01-01

The literature offers a number of approximations for analytically and/or efficiently computing the probability of collision between two space objects. However, only one of these techniques is a completely analytical approximation that is suitable for use in the preliminary design phase, when it is more important to quickly analyze a large segment of the trade space than it is to precisely compute collision probabilities. Unfortunately, among the types of formations that one might consider, some combine a range of conditions for which this analytical method is less suitable. This work proposes a simple, conservative approximation that produces reasonable upper bounds on the collision probability in such conditions. Although its estimates are much too conservative under other conditions, such conditions are typically well suited for use of the existing method.
Conservative Analytical Collision Probability for Design of Orbital Formations

NASA Technical Reports Server (NTRS)

Carpenter, J. Russell

2004-01-01

The literature offers a number of approximations for analytically and/or efficiently computing the probability of collision between two space objects. However, only one of these techniques is a completely analytical approximation that is suitable for use in the preliminary design phase, when it is more important to quickly analyze a large segment of the trade space than it is to precisely compute collision probabilities. Unfortunately, among the types of formations that one might consider, some combine a range of conditions for which this analytical method is less suitable. This work proposes a simple, conservative approximation that produces reasonable upper bounds on the collision probability in such conditions. Although its estimates are much too conservative under other conditions, such conditions are typically well suited for use of the existing method.
Habitat Suitability Index Models: Marten

USGS Publications Warehouse

Allen, Arthur W.

1982-01-01

Habitat preferences and species characteristics of the pine marten (Martes americana) are described in this publication. It is one of a series of Habitat Suitability Index (HSI) models and was developed through an analysis of available scientific data on the species-habitat requirements of the pine marten. Habitat use information is presented in a review of the literature, followed by the development of a HSI model. The model is presented in three formats: graphic, word and mathematical. Suitability index graphs quantify the species-habitat relationship. These data are then synthesized into a model which is designed to provide information for use in impact assessment and habitat management activities.
A Novel Malaria Pf/Pv Ab Rapid Diagnostic Test Using a Differential Diagnostic Marker Identified by Network Biology.

PubMed

Cho, Sung Jin; Lee, Jihoo; Lee, Hyun Jae; Jo, Hyun-Young; Sinniah, Mangalam; Kim, Hak-Yong; Chong, Chom-Kyu; Song, Hyun-Ok

2016-01-01

Rapid diagnostic tests (RDTs) can detect anti-malaria antibodies in human blood. As they can detect parasite infection at the low parasite density, they are useful in endemic areas where light infection and/or re-infection of parasites are common. Thus, malaria antibody tests can be used for screening bloods in blood banks to prevent transfusion-transmitted malaria (TTM), an emerging problem in malaria endemic areas. However, only a few malaria antibody tests are available in the microwell-based assay format and these are not suitable for field application. A novel malaria antibody (Ab)-based RDT using a differential diagnostic marker for falciparum and vivax malaria was developed as a suitable high-throughput assay that is sensitive and practical for blood screening. The marker, merozoite surface protein 1 (MSP1) was discovered by generation of a Plasmodium-specific network and the hierarchical organization of modularity in the network. Clinical evaluation revealed that the novel Malaria Pf/Pv Ab RDT shows improved sensitivity (98%) and specificity (99.7%) compared with the performance of a commercial kit, SD BioLine Malaria P.f/P.v (95.1% sensitivity and 99.1% specificity). The novel Malaria Pf/Pv Ab RDT has potential for use as a cost-effective blood-screening tool for malaria and in turn, reduces TTM risk in endemic areas.
Embodied Learning and School-Based Physical Culture: Implications for Professionalism and Practice in Physical Education

ERIC Educational Resources Information Center

Thorburn, Malcolm; Stolz, Steven

2017-01-01

We write as critical theorists, who consider that in terms of scoping out robust conceptual elaborations which are suitable for contemporary schooling, that physical education has ground to make up connecting theory with practice and practice with theory. We advocate that aspects of existentialism and phenomenology can provide a theoretically…
The Role of School Technicians in Promoting Science through Practical Work

ERIC Educational Resources Information Center

Helliar, Anne T.; Harrison, Timothy G.

2011-01-01

This is a review of the role of practical work in UK's secondary school science lessons, the impact that practical work has in the promotion of science, the challenges created through use of non-specialist science teachers and a possible additional role for science technicians. The paper considers how improved deployment of suitably experienced…
A Novel Way To Practice Slope.

ERIC Educational Resources Information Center

Kennedy, Jane B.

1997-01-01

Presents examples of using a tic-tac-toe format to practice finding the slope and identifying parallel and perpendicular lines from various equation formats. Reports the successful use of this format as a review in both precalculus and calculus classes before students work with applications of analytic geometry. (JRH)
Formation in professional education: an examination of the relationship between theories of meaning and theories of the self.

PubMed

Benner, Patricia

2011-08-01

Being formed through learning a practice is best understood within a constitutive theory of meaning as articulated by Charles Taylor. Disengaged views of the person cannot account for the formative changes in a person's identity and capacities upon learning a professional practice. Representational or correspondence theories of meaning cannot account for formation. Formation occurs over time because students actively seek and take up new concerns and learn new knowledge and skills. Engaged situated reasoning about underdetermined practice situations requires well-formed skillful clinicians caring for particular patients in particular situations.
16 CFR § 1500.126 - Substances determined to be “special hazards.”

Code of Federal Regulations, 2013 CFR

2013-01-01

....â Â§ 1500.126 Section Â§ 1500.126 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL... for a particular hazardous substance intended or packaged in a form suitable for use in the household... intended, or packaged in a form suitable, for use in the household or by children that fails to bear a...
10 CFR 2.603 - Acceptance and docketing of application for early review of site suitability issues in a...

Code of Federal Regulations, 2010 CFR

2010-01-01

... REGULATORY COMMISSION RULES OF PRACTICE FOR DOMESTIC LICENSING PROCEEDINGS AND ISSUANCE OF ORDERS Additional... Issuance of Limited Work Authorizations Early Partial Decisions on Site Suitability-Construction Permit § 2... processing, the Director of the Office of New Reactors or the Director of the Office of Nuclear Reactor...
10 CFR 2.621 - Acceptance and docketing of application for early review of site suitability issues in a combined...

Code of Federal Regulations, 2010 CFR

2010-01-01

... REGULATORY COMMISSION RULES OF PRACTICE FOR DOMESTIC LICENSING PROCEEDINGS AND ISSUANCE OF ORDERS Additional... Issuance of Limited Work Authorizations Early Partial Decisions on Site Suitability-Combined License Under... Director of the Office of New Reactors or the Director of the Office of Nuclear Reactor Regulation, as...
Vaginal delivery of carboplatin-loaded thermosensitive hydrogel to prevent local cervical cancer recurrence in mice.

PubMed

Wang, Xue; Wang, Jin; Wu, Wenbin; Li, Hongjun

2016-11-01

Local tumor recurrence after cervical cancer surgery remains a clinical problem. Vaginal delivery of thermosensitive hydrogel may be suited to reduce tumor relapse rate with more efficacy and safety. A pilot study was carried out to evaluate the efficacy of carboplatin-loaded poloxamer hydrogel to prevent local recurrence of cervical cancer after surgery. In vivo vaginal retention evaluation of 27% poloxamer hydrogel in mice was proven to be a suitable vaginal drug delivery formulation due to its low gelation temperature. A mimic orthotopic cervical/vaginal cancer recurrence model after surgery was established by injecting murine cervical cancer cell line U14 into the vaginal submucosa to simulate the residual tumor cells infiltrated in the surgical site, followed by drug administration 24 h later to interfere with the formation/recurrence of the tumor. By infusing fluorescein sodium-loaded hydrogel into the vagina of mice, a maximized accumulation of fluorescein sodium (Flu) in the vagina was achieved and few signals were observed in other organs. When used in the prevention of the cervical cancer formation/recurrence in mice, the carboplatin-loaded poloxamer hydrogel exhibited great efficacy and systemic safety. In conclusion, thermosensitive hydrogel presents a simple, practical approach for the local drug delivery via vagina against cervical cancer recurrence.
The personal receiving document management and the realization of email function in OAS

NASA Astrophysics Data System (ADS)

Li, Biqing; Li, Zhao

2017-05-01

This software is an independent software system, suitable for small and medium enterprises, contains personal office, scientific research project management and system management functions, independently run in relevant environment, and to solve practical needs. This software is an independent software system, using the current popular B/S (browser/server) structure and ASP.NET technology development, using the Windows 7 operating system, Microsoft SQL Server2005 Visual2008 and database as a development platform, suitable for small and medium enterprises, contains personal office, scientific research project management and system management functions, independently run in relevant environment, and to solve practical needs.
Method for laser drilling subterranean earth formations

DOEpatents

Shuck, Lowell Z.

1976-08-31

Laser drilling of subterranean earth formations is efficiently accomplished by directing a collimated laser beam into a bore hole in registry with the earth formation and transversely directing the laser beam into the earth formation with a suitable reflector. In accordance with the present invention, the bore hole is highly pressurized with a gas so that as the laser beam penetrates the earth formation the high pressure gas forces the fluids resulting from the drilling operation into fissures and pores surrounding the laser-drilled bore so as to inhibit deleterious occlusion of the laser beam. Also, the laser beam may be dynamically programmed with some time dependent wave form, e.g., pulsed, to thermally shock the earth formation for forming or enlarging fluid-receiving fissures in the bore.
The readability and suitability of sexual health promotion leaflets.

PubMed

Corcoran, Nova; Ahmad, Fatuma

2016-02-01

To investigate the readability and suitability of sexual health promotion leaflets. Application of SMOG, FRY and SAM tests to assess the readability and suitability of a selection of sexual health leaflets. SMOG and FRY scores illustrate an average reading level of grade 9. SAM scores indicate that 59% of leaflets are superior in design and 41% are average in design. Leaflets generally perform well in the categories of content, literacy demand, typography and layout. They perform poorly in use of graphics, learning stimulation/motivation and cultural appropriateness. Sexual health leaflets have a reading level that is too high. Leaflets perform well on the suitability scores indicating they are reasonably suitable. There are a number of areas where sexual health leaflets could improve their design. Numerous practical techniques are suggested for improving the readability and suitability of sexual health leaflets. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.
SEIS-PROV: Practical Provenance for Seismological Data

NASA Astrophysics Data System (ADS)

Krischer, L.; Smith, J. A.; Tromp, J.

2015-12-01

It is widely recognized that reproducibility is crucial to advance science, but at the same time it is very hard to actually achieve. This results in it being recognized but also mostly ignored by a large fraction of the community. A key ingredient towards full reproducibility is to capture and describe the history of data, an issue known as provenance. We present SEIS-PROV, a practical format and data model to store provenance information for seismological data. In a seismological context, provenance can be seen as information about the processes that generated and modified a particular piece of data. For synthetic waveforms the provenance information describes which solver and settings therein were used to generate it. When looking at processed seismograms, the provenance conveys information about the different time series analysis steps that led to it. Additional uses include the description of derived data types, such as cross-correlations and adjoint sources, enabling their proper storage and exchange. SEIS-PROV is based on W3C PROV (http://www.w3.org/TR/prov-overview/), a standard for generic provenance information. It then applies an additional set of constraints to make it suitable for seismology. We present a definition of the SEIS-PROV format, a way to check if any given file is a valid SEIS-PROV document, and two sample implementations: One in SPECFEM3D GLOBE (https://geodynamics.org/cig/software/specfem3d_globe/) to store the provenance information of synthetic seismograms and another one as part of the ObsPy (http://obspy.org) framework enabling automatic tracking of provenance information during a series of analysis and transformation stages. This, along with tools to visualize and interpret provenance graphs, offers a description of data history that can be readily tracked, stored, and exchanged.
Habitat Suitability Index Models: Eastern meadowlark

USGS Publications Warehouse

Schroeder, Richard L.; Sousa, Patrick J.

1982-01-01

Habitat preferences of the eastern meadowlark (Sturnella magna) are described in this publication, which is one of a series of Habitat Suitability Index (HSI) models. Habitat use information is presented in a synthesis of the literature on the species-habitat requirements of the eastern meadowlark, followed by the development of the HSI model. The model is presented in three formats: graphic, word, and mathematical, and is designed to provide information for use in impact assessment and habitat management activities.
Habitat Suitability Index Models: Pine warbler

USGS Publications Warehouse

Schroeder, Richard L.

1982-01-01

Habitat preferences of the pine warbler (Dendroica pinus) are described in this publication, which is one of a series of Habitat Suitability Index (HSI) models. Habitat use information is presented in a synthesis of the literature on the species-habitat requirements of the pine warbler, followed by the development of the HSI model. The model is presented in three formats: graphic, word, and mathematical, and is designed to provide information for use in impact assessment and habitat management activities.
Controlled preparation of Ag–Cu{sub 2}O nanocorncobs and their enhanced photocatalytic activity under visible light

DOE Office of Scientific and Technical Information (OSTI.GOV)

Yang, Siyuan; Zhang, Shengsen; College of Science, South China Agricultural University, Guangzhou 510642

Graphical abstract: The corncob-like Ag–Cu{sub 2}O nanostructure with suitably exposed Ag surface exhibited much higher photocatalytic activity than Ag@Cu{sub 2}O nanocables and Cu{sub 2}O nanowires. - Highlights: • Ag–Cu{sub 2}O nanocorncobs have been controllably prepared by a simple synthesis. • The possible formation mechanism of Ag–Cu{sub 2}O has been studied. • Ag–Cu{sub 2}O exhibits noticeable improved photocurrent compared with the pure Cu{sub 2}O NWs. • Ag–Cu{sub 2}O with suitably exposed Ag surface shows much higher photocatalytic activity. - Abstract: Novel corncob-like nano-heterostructured Ag–Cu{sub 2}O photocatalyst has been controllably prepared by adjusting the synthetic parameters, and the possible formation mechanism hasmore » been also studied. The photoelectrochemical and photocatalytic performances demonstrated that the as-prepared Ag–Cu{sub 2}O nanocorncobs exhibited higher photocatalytic activity than both pure Cu{sub 2}O nanowires and cable-like Ag@Cu{sub 2}O nano-composites. It was concluded that Ag–Cu{sub 2}O nanocorncobs with suitably exposed Ag surface not only effectively inhibit the recombination of electron–hole pairs but also suitably increase the active sites of electronic conduction, and thus increasing the photocatalytic activity under visible light irradiation.« less
21 CFR 131.110 - Milk.

Code of Federal Regulations, 2014 CFR

2014-04-01

... nonfat dry milk. Milk may be homogenized. (b) Vitamin addition (Optional). (1) If added, vitamin A shall... Units thereof within limits of good manufacturing practice. (2) If added, vitamin D shall be present in... good manufacturing practice. (c) Optional ingredients. The following safe and suitable ingredients may...

U.S. Department of Energy's regional carbon sequestration partnership initiative: Update on validation and development phases

USGS Publications Warehouse

Rodosta, T.; Litynski, J.; Plasynski, S.; Spangler, L.; Finley, R.; Steadman, E.; Ball, D.; Gerald, H.; McPherson, B.; Burton, E.; Vikara, D.

2011-01-01

The U.S. Department of Energy (DOE) is the lead federal agency for the development and deployment of carbon sequestration technologies. The Regional Carbon Sequestration Partnerships (RCSPs) are the mechanism DOE utilizes to prove the technology and to develop human capital, stakeholder networks, information for regulatory policy, best practices documents and training to work toward the commercialization of carbon capture and storage (CCS). The RCSPs are tasked with determining the most suitable technologies, regulations, and infrastructure for carbon capture, transport, and storage in their respective geographic areas of responsibility. The seven partnerships include more than 400 state agencies, universities, national laboratories, private companies, and environmental organizations, spanning 43 states and four Canadian provinces. The Regional Partnerships Initiative is being implemented in three phases: Characterization, Validation, and Development. The initial Characterization Phase began in 2003 and was completed in 2005 and focused on characterization of CO2 storage potential within each region. It was followed by the Validation Phase, which began in 2005 and is nearing completion in 2011. The focus of the Validation Phase has been on small-scale field tests throughout the seven partnerships in various formation types such as saline, oil-bearing, and coal seams. The Validation Phase has characterized suitable CO2 storage reservoirs and identified the need for comprehensive legal and regulatory frameworks to enable commercial-scale CCS deployment. Finally, the Development Phase will consist of a series of large-scale, one-million-ton, injection tests throughout the United States and Canada. The objective of these large-scale tests is to identify the regulatory path or challenges in permitting CCS projects, to demonstrate the technology can inject CO2 safely, and to verify its permanence in geologic formations in preparation for the commercialization of geologic sequestration. ?? 2010 Elsevier Ltd. All rights reserved. ?? 2011 Published by Elsevier Ltd.
Interpretations of the Patient-Therapist Relationship in Brief Dynamic Psychotherapy

PubMed Central

AMLO, SVEIN; ENGELSTAD, VIBEKE; FOSSUM, ARNE; SØRLIE, TORE; HØGLEND, PER; HEYERDAHL, OSCAR; SØRBYE, ØYSTEIN

1993-01-01

The authors examined whether persistent analysis of the patient-therapist relationship in brief dynamic psychotherapy favorably affects long-term dynamic change in patients initially deemed suitable for such treatment. As in common practice, 22 highly suitable patients were given a high number of transference interpretations per session. A comparison group of 21 patients with lower suitability received the same treatment, but transference interpretations were withheld. Statistical adjustment for the deliberate nonequivalence in pretreatment suitability indicated a significant negative effect of high numbers of transference interpretations on long-term dynamic changes. Demographic variables, DSM-III diagnoses, additional treatment, life events in the follow-up years, or therapist effects did not explain or obscure the findings. PMID:22700155
Science Teachers' Representations of Classroom Practice in the Process of Formative Assessment Design

ERIC Educational Resources Information Center

Heredia, Sara C.; Furtak, Erin Marie; Morrison, Deb; Renga, Ian Parker

2016-01-01

Formative assessment has been recognized as an essential element of effective classroom practice; as a result, teachers are increasingly required to create formative assessments for their classrooms. This study examines data drawn from a long-term, site-based professional development program that supported a department of biology teachers in the…
Written Formative Assessment and Silence in the Classroom

ERIC Educational Resources Information Center

Lee Hang, Desmond Mene; Bell, Beverley

2015-01-01

In this commentary, we build on Xinying Yin and Gayle Buck's discussion by exploring the cultural practices which are integral to formative assessment, when it is viewed as a sociocultural practice. First we discuss the role of assessment and in particular oral and written formative assessments in both western and Samoan cultures, building on the…
Leading Formative Assessment Change: A 3-Phase Approach

ERIC Educational Resources Information Center

Northwest Evaluation Association, 2016

2016-01-01

If you are seeking greater student engagement and growth, you need to integrate high-impact formative assessment practices into daily instruction. Read the final article in our five-part series to find advice aimed at leaders determined to bring classroom formative assessment practices district wide. Learn: (1) what you MUST consider when…
Formative Assessment in Practice: A Process of Inquiry and Action

ERIC Educational Resources Information Center

Heritage, Margaret

2013-01-01

Margaret Heritage presents a practical guide to formative assessment as a process of "inquiry and action" essential to twenty-first century learning. In the wake of the development of the Common Core standards and the effort to develop the appropriate assessments to accompany them, formative assessment has attracted increasing attention…
10 CFR 2.604 - Notice of hearing on application for early review of site suitability issues in construction...

Code of Federal Regulations, 2013 CFR

2013-01-01

... 10 Energy 1 2013-01-01 2013-01-01 false Notice of hearing on application for early review of site... AGENCY RULES OF PRACTICE AND PROCEDURE Additional Procedures Applicable to Early Partial Decisions on... Early Partial Decisions on Site Suitability-Construction Permit § 2.604 Notice of hearing on application...
10 CFR 2.623 - Notice of hearing on application for early review of site suitability issues in combined license...

Code of Federal Regulations, 2013 CFR

2013-01-01

... 10 Energy 1 2013-01-01 2013-01-01 false Notice of hearing on application for early review of site... AGENCY RULES OF PRACTICE AND PROCEDURE Additional Procedures Applicable to Early Partial Decisions on... Early Partial Decisions on Site Suitability-Combined License Under 10 Cfr Part 52 § 2.623 Notice of...
10 CFR 2.604 - Notice of hearing on application for early review of site suitability issues in construction...

Code of Federal Regulations, 2014 CFR

2014-01-01

... 10 Energy 1 2014-01-01 2014-01-01 false Notice of hearing on application for early review of site... AGENCY RULES OF PRACTICE AND PROCEDURE Additional Procedures Applicable to Early Partial Decisions on... Early Partial Decisions on Site Suitability-Construction Permit § 2.604 Notice of hearing on application...
10 CFR 2.623 - Notice of hearing on application for early review of site suitability issues in combined license...

Code of Federal Regulations, 2014 CFR

2014-01-01

... 10 Energy 1 2014-01-01 2014-01-01 false Notice of hearing on application for early review of site... AGENCY RULES OF PRACTICE AND PROCEDURE Additional Procedures Applicable to Early Partial Decisions on... Early Partial Decisions on Site Suitability-Combined License Under 10 Cfr Part 52 § 2.623 Notice of...
Guidance for Large-scale Implementation of Alternate Wetting and Drying: A Biophysical Suitability Assessment

NASA Astrophysics Data System (ADS)

Sander, B. O.; Wassmann, R.; Nelson, A.; Palao, L.; Wollenberg, E.; Ishitani, M.

2014-12-01

The alternate wetting and drying (AWD) technology for rice production does not only save 15-30% of irrigation water, it also reduces methane emissions by up to 70%. AWD is defined by periodic drying and re-flooding of a rice field. Due to its high mitigation potential and its simplicity to execute this practice AWD has gained a lot of attention in recent years. The Climate and Clean Air Coalition (CCAC) has put AWD high on its agenda and funds a project to guide implementation of this technology in Vietnam, Bangladesh and Colombia. One crucial activity is a biophysical suitability assessment for AWD in the three countries. For this, we analyzed rainfall and soil data as well as potential evapotranspiration to assess if the water balance allows practicing AWD or if precipitation is too high for rice fields to fall dry. In my talk I will outline key factors for a successful large-scale implementation of AWD with a focus on the biophysical suitability assessment. The seasonal suitability maps that we generated highlight priority areas for AWD implementation and guide policy makers to informed decisions about meaningful investments in infrastructure and extension work.
'Hello, my name is Gabriel, I am the house officer, may I examine you?' or the Objective Santa Christmas Examination (OSCE).

PubMed

Wood, D; Roberts, T; Bradley, P; Lloyd, D; O'Neill, P

1999-12-01

To design a clinical examination of high content validity suitable for use as a formative assessment tool with pre-registration house officers (PRHO'S) towards the end of their first house officer post. A multicentre collaboration between four UK medical schools who offer undergraduate curricula which are problem-based, systems-based, patient-orientated, student-centred, jargon-laden and utterly staff-bewildering. An objective structured clinical examination (OSCE) which is suitable for use with graduates of UK medical schools. It assesses the knowledge, skills and attitudes essential for future careers in a hierarchical system where protecting the senior staff from all forms of irritation is paramount. PRHO'S who excel in this examination get better references. The OSCE format can be used to provide 'real-life' scenarios appropriate to the season.
Time-Varying Expression of the Formation Flying along Circular Trajectories

NASA Technical Reports Server (NTRS)

Kawaguchi, Jun'ichiro

2007-01-01

Usually, the formation flying associated with circular orbits is discussed through the well-known Hill s or C-W equations of motion. This paper dares to present and discuss the coordinates that may contain time-varying coefficients. The discussion presents how the controller s performance is affected by the selection of coordinates, and also looks at the special coordinate suitable for designating a target bin to which each spacecraft in the formation has only to be guided. It is revealed that the latter strategy may incorporate the J2 disturbance automatically.
Polymer scaffold degradation control via chemical control

DOEpatents

Hedberg-Dirk, Elizabeth L.; Dirk, Shawn; Cicotte, Kirsten

2016-01-05

A variety of polymers and copolymers suitable for use as biologically compatible constructs and, as a non-limiting specific example, in the formation of degradable tissue scaffolds as well methods for synthesizing these polymers and copolymers are described. The polymers and copolymers have degradation rates that are substantially faster than those of previously described polymers suitable for the same uses. Copolymers having a synthesis route which enables one to fine tune the degradation rate by selecting the specific stoichiometry of the monomers in the resulting copolymer are also described. The disclosure also provides a novel synthesis route for maleoyl chloride which yields monomers suitable for use in the copolymer synthesis methods described herein.
Enhancing Research and Practice in Early Childhood through Formative and Design Experiments

ERIC Educational Resources Information Center

Bradley, Barbara A.; Reinking, David

2011-01-01

This article describes formative and design experiments and how they can advance research and instructional practices in early childhood education. We argue that this relatively new approach to education research closes the gap between research and practice, and it addresses limitations that have been identified in early childhood research. We…
Investigating the Dynamics of Formative Assessment: Relationships between Teacher Knowledge, Assessment Practice and Learning

ERIC Educational Resources Information Center

Herman, Joan; Osmundson, Ellen; Dai, Yunyun; Ringstaff, Cathy; Timms, Michael

2015-01-01

This exploratory study of elementary school science examines questions central to policy, practice and research on formative assessment: What is the quality of teachers' content-pedagogical and assessment knowledge? What is the relationship between teacher knowledge and assessment practice? What is the relationship between teacher knowledge,…
Journal Clubs and Case Conferences: From Academic Tradition to Communities of Practice

ERIC Educational Resources Information Center

Price, David W.; Felix, Kate G.

2008-01-01

Introduction: As small group learning sessions, Journal Clubs (JCs) and Case Conferences (CCs), if structured interactively, have potential as educational formats that can change practice. However, the degree to which these formats, as currently typically structured, lead to practice change is unknown. Methods: We used concepts of communities of…
Eliciting, Identifying, Interpreting, and Responding to Students' Ideas: Teacher Candidates' Growth in Formative Assessment Practices

ERIC Educational Resources Information Center

Gotwals, Amelia Wenk; Birmingham, Daniel

2016-01-01

With the goal of helping teacher candidates become well-started beginners, it is important that methods courses in teacher education programs focus on high-leverage practices. Using responsive teaching practices, specifically eliciting, identifying, interpreting, and responding to students' science ideas (i.e., formative assessment), can be used…
Informal Formative Assessment and Scientific Inquiry: Exploring Teachers' Practices and Student Learning

ERIC Educational Resources Information Center

Ruiz-Primo, Maria Araceli; Furtak, Erin Marie

2006-01-01

What does informal formative assessment look like in the context of scientific inquiry teaching? Is it possible to identify different levels of informal assessment practices? Can different levels of informal assessment practices be related to levels of student learning? This study addresses these issues by exploring how 4 middle school science…
Blended-Format Professional Development and the Emergence of Communities of Practice

ERIC Educational Resources Information Center

Hodges, Thomas E.; Cady, JoAnn

2013-01-01

In this paper, we draw on Wenger's (1998) conception of communities of practice to observe the emergence of a community of practice among middle grades mathematics teachers who participated in a two-year blended-format (online synchronous, online asynchronous, and face to face) professional development program designed to increase middle-grades…

Precepts and Practices: Researching Identity Formation among Indian Hindu Adolescents in the United States.

ERIC Educational Resources Information Center

Miller, Barbara D.

1995-01-01

Presents general comments on economic, political and demographic features of Indian Hindu community in the United States. Describes preliminary findings on precepts and practices related to identity formation among Indian Hindu youth. Highlights practices related to dress and hair behaviors and gender differences. Presents questions for further…
Using aerial photography to estimate wood suitable for charcoal in managed oak forests

NASA Astrophysics Data System (ADS)

Ramírez-Mejía, D.; Gómez-Tagle, A.; Ghilardi, A.

2018-02-01

Mexican oak forests (genus Quercus) are frequently used for traditional charcoal production. Appropriate management programs are needed to ensure their long-term use, while conserving the biodiversity and ecosystem services, and associated benefits. A key variable needed to design these programs is the spatial distribution of standing woody biomass. A state-of-the-art methodology using small format aerial photographs was developed to estimate the total aboveground biomass (AGB) and aboveground woody biomass suitable for charcoal making (WSC) in intensively managed oak forests. We used tree crown area (CAap) measurements from very high-resolution (30 cm) orthorectified small format digital aerial photographs as the predictive variable. The CAap accuracy was validated using field measurements of the crown area (CAf). Allometric relationships between: (a) CAap versus AGB, and (b) CAap versus WSC had a high significance level (R 2 > 0.91, p < 0.0001). This approach shows that it is possible to obtain sound biomass estimates as a function of the crown area derived from digital small format aerial photographs.
Improved Success of Sparse Matrix Protein Crystallization Screening with Heterogeneous Nucleating Agents

PubMed Central

Thakur, Anil S.; Robin, Gautier; Guncar, Gregor; Saunders, Neil F. W.; Newman, Janet; Martin, Jennifer L.; Kobe, Bostjan

2007-01-01

Background Crystallization is a major bottleneck in the process of macromolecular structure determination by X-ray crystallography. Successful crystallization requires the formation of nuclei and their subsequent growth to crystals of suitable size. Crystal growth generally occurs spontaneously in a supersaturated solution as a result of homogenous nucleation. However, in a typical sparse matrix screening experiment, precipitant and protein concentration are not sampled extensively, and supersaturation conditions suitable for nucleation are often missed. Methodology/Principal Findings We tested the effect of nine potential heterogenous nucleating agents on crystallization of ten test proteins in a sparse matrix screen. Several nucleating agents induced crystal formation under conditions where no crystallization occurred in the absence of the nucleating agent. Four nucleating agents: dried seaweed; horse hair; cellulose and hydroxyapatite, had a considerable overall positive effect on crystallization success. This effect was further enhanced when these nucleating agents were used in combination with each other. Conclusions/Significance Our results suggest that the addition of heterogeneous nucleating agents increases the chances of crystal formation when using sparse matrix screens. PMID:17971854
Grounding formative assessment in high-school chemistry classrooms: Connections between professional development and teacher practice

NASA Astrophysics Data System (ADS)

Cisterna Alburquerque, Dante Igor

This study describes and analyzes the experiences of two high-school chemistry teachers who participated in a team-based professional development program to learn about and enact formative assessment in their classrooms. The overall purpose of this study is to explain how participation in this professional development influenced both teachers' classroom enactment of formative assessment practices. This study focuses on 1) teachers' participation in the professional development program, 2) teachers' enactment of formative assessment, and 3) factors that enabled or hindered enactment of formative assessment. Drawing on cultural-historical activity theory (CHAT) and using evidence from teacher lessons, teacher interviews, professional development meetings as data sources, this single embedded case study analyzes how these two teachers who participated in the same learning team and have similar characteristics (i.e., teaching in the same school, teaching the same courses and population of students, and using the same materials) differentially used the professional development learning about formative assessment as mediating tools to improve their classroom instruction. The learning team experience contributed to both teachers' development of a better understanding of formative assessment---especially in recognizing that their current grading and assessment practices were not appropriate to promote student learning---and the co-creation of artifacts to gather evidence of students' ideas. Although both teachers demonstrated understanding about how formative assessment may serve to promote student learning and had a set of tools available to utilize for formative assessment use, they did not enact these tools in the same way. One teacher appropriated formative assessment as mediating tool to verify if the students were following her explanations, and to check if the students were able to provide the correct response. The other teacher used the mediating tool to promote better understanding of students' ideas and her mindset shifted to place more value on the diversity of students' thinking and help them be more aware of their ideas. This study illustrates the complexities of enacting formative assessment practices in particular classrooms because teachers may interpret and use these tools in different ways. Thus, when teachers enacted these mediating tools, their interaction with the activity system's components produced different instructional outcomes and tensions. Similarly, this study describes how the use of artifacts of practice can be a vehicle between professional development and classrooms, especially in early stages of professional development. This study presents implications for professional development and formative assessment research and practice. Professional development needs to support teachers in reflecting on their practice in terms of activity systems, use a solid and research-based understanding of formative assessment, and promote opportunities to teachers to create, enact, and reflect on formative assessment artifacts and tools.
On the occurrence of aflatoxin M1 in milk and dairy products.

PubMed

Prandini, A; Tansini, G; Sigolo, S; Filippi, L; Laporta, M; Piva, G

2009-05-01

Aflatoxins are toxic fungal metabolites found in foods and feeds. When ruminants eat AFB(1)-feedstuffs, they metabolise the toxin and excrete AFM(1) in milk. To control AFM(1) in foods it is necessary to reduce AFB(1) contamination of feeds for dairy cattle by preventing fungal growth and AFB(1) formation in agricultural commodities intended for animal use. Corn and corn-based products are one of the most contaminated feedstuffs; therefore risk factor analysis of AFB(1) contamination in corn is necessary to evaluate risk of AFM(1) contamination in milk and milk products. During the corn silage production, the aflatoxins production is mostly influenced by: harvest time; fertilization; irrigation; pest control; silage moisture; and storage practices. Due to the lower moisture at harvest and to the conservation methods, the corn grain is mostly exposed to the contamination by Aspergillus species. Therefore, it is necessary to reduce the probability of this contaminant through choice of: hybrids; seeding time and density; suitable ploughing and fertirrigation; and chemical or biological control. Grains harvested with the lowest possible moisture and conservation moisture close to or less than 14% are necessary to reduce contamination risks, as is maintaining mass to homogeneous moisture. Kernel mechanical damage, grain cleaning practices and conservation temperature are also factors which need to be carefully controlled.
Double-strand DNA-templated formation of copper nanoparticles as fluorescent probe for label-free aptamer sensor.

PubMed

Zhou, Zhixue; Du, Yan; Dong, Shaojun

2011-07-01

Double-strand DNA (dsDNA) can act as an efficient template for the formation of copper nanoparticles (Cu NPs) at low concentration of CuSO(4), and the formed Cu NPs have excellent fluorescence, whereas a single-strand DNA (ssDNA) template does not support Cu NPs' formation. This property of dsDNA-Cu NPs makes it suitable for DNA sensing. However, exploration of dsDNA-Cu NPs applied in biological analysis is still at an early stage. In this regard, we report herein for the first time a sensitive, cost-effective, and simple aptamer sensor (aptasensor) using dsDNA-Cu NPs as fluorescent probe. The design consists of a dsDNA with reporter DNA (here, aptamer) as template for the formation of Cu NPs, and the formed dsDNA-Cu NPs show high fluorescence. Using adenosine triphosphate (ATP) as a model analyte, the introduction of ATP triggers the structure switching of reporter DNA to form aptamer-ATP complex, causing the destruction of the double helix and thus no formation of the Cu NPs, resulting in low fluorescence. The preferable linear range (0.05-500 μM), sensitivity (LOD 28 nM), and simplicity for the detection of ATP indicate that dsDNA-Cu NPs may have great prospects in the field of biological analysis. We also use this novel fluorescent probe to determine ATP in 1% human serum and human adenocarcinoma HeLa cells. The dsDNA-Cu NPs probes provide recovery of 104-108% in 1% human serum and a prominent fluorescent signal is obtained in cellular ATP assay, revealing the practicality of using dsDNA-Cu NPs for the determination of ATP in real samples. Besides, this design is simply based on nucleic acid hybridization, so it can be generally applied to other aptamers for label-free detection of a broad range of analytes. Successful detection of cocaine with detection limit of 0.1 μM demonstrates its potential to be a general method.
Vacuum arc plasma thrusters with inductive energy storage driver

NASA Technical Reports Server (NTRS)

Krishnan, Mahadevan (Inventor)

2009-01-01

A plasma thruster with a cylindrical inner and cylindrical outer electrode generates plasma particles from the application of energy stored in an inductor to a surface suitable for the formation of a plasma and expansion of plasma particles. The plasma production results in the generation of charged particles suitable for generating a reaction force, and the charged particles are guided by a magnetic field produced by the same inductor used to store the energy used to form the plasma.
L'integration des savoirs theoriques a la pratique par l'analyse reflexive: Formation a la gestion de classe (The Integration of Theoretical Knowledge with the Practice of Reflective Analysis: Formation of Class Management).

ERIC Educational Resources Information Center

Bourgeois, Noella

1999-01-01

Explores whether reflective analysis promotes integration of theoretical knowledge presented in a course on motivation, with the practice of classroom management during a practice teaching round. Analyzes narrative accounts of practice where subjects recorded observations and reflections of experiences. Results indicate the presence of principal…
Perceptions of Pedagogical Formation Students about Web 2.0 Tools and Educational Practices

ERIC Educational Resources Information Center

Avci Yücel, Ümmühan

2017-01-01

This study aims to examine pedagogical formation students' perceptions about Web 2.0 tools and educational practices. A case study approach forms the methodological framework of this study. This study was conducted with 42 pedagogical formation students of an Instructional Technology and Material Design course during the 2014-2015 spring semester.…
Using Reflective Practice to Incorporate Formative Assessment in a Middle School Science Classroom: A Participatory Action Research Study

ERIC Educational Resources Information Center

Trauth-Nare, Amy; Buck, Gayle

2011-01-01

Our purpose was to investigate the efficacy of using reflective practice to guide our action research study of incorporating formative assessment into middle school science teaching and learning. Using participatory action research, we worked collaboratively to incorporate formative assessment into two instructional units, and then engaged in…
Using Video to Examine Formative Assessment Practices as Measures of Expertise for Mathematics and Science Teachers

ERIC Educational Resources Information Center

Gotwals, Amelia Wenk; Philhower, Joanne; Cisterna, Dante; Bennett, Steven

2015-01-01

Formative assessment practices, including eliciting a broad range of student ideas, noticing the nuances in students' ideas, using these ideas to guide instruction, and promoting student self-regulation of learning are key components of expert teaching. Given the inherent dialogical nature of formative assessment in the classroom, video can…
How to fracture formations (in Spanish)

DOE Office of Scientific and Technical Information (OSTI.GOV)

del Risco V.M.

1971-01-01

Government-owned Petroleos del Peru has found the limited-entry fracturing technique to be the most suitable under prevailing conditions for its NW. Peruvian oil fields. There, most formations available for stimulation are low- permeability and highly compact sands interbedded with thin and thick layers of clay. After experimenting with 8 different commercially available methods, a detailed analysis of the results showed the Shoot-Frac system to be the most effective.
Comparative study of carotenoids, catalase and radical formation in human and animal skin.

PubMed

Haag, S F; Bechtel, A; Darvin, M E; Klein, F; Groth, N; Schäfer-Korting, M; Bittl, R; Lademann, J; Sterry, W; Meinke, M C

2010-01-01

Animal skin is widely used in dermatological free radical research. Porcine ear skin is a well-studied substitute for human skin. The use of bovine udder skin is rare but its high carotenoid content makes it particularly appropriate for studying the redox state of the skin. Yet, information on the suitability of animal skin for the study of external hazard effects on the redox state of human skin has been lacking. In this study, we investigated the activity of the antioxidant enzyme catalase and the carotenoid content defining the redox status as well as UV-induced radical formation of human, porcine ear and bovine udder skin ex vivo. In human skin only low levels of radical formation were detected following UV irradiation, whereas bovine skin contains the highest amount of carotenoids but the lowest amount of catalase. Porcine ear skin does not exhibit a carotenoid signal but its catalase activity is close to human skin. Therefore, radical formation can neither be correlated to the amount of catalase nor to the amount of carotenoids in the skin. All skin types can be used for electron paramagnetic resonance-based detection of radicals, but porcine skin was found to be the most suitable type. Copyright 2010 S. Karger AG, Basel.
Development of a novel, multilayered presentation format for clinical practice guidelines.

PubMed

Kristiansen, Annette; Brandt, Linn; Alonso-Coello, Pablo; Agoritsas, Thomas; Akl, Elie A; Conboy, Tara; Elbarbary, Mahmoud; Ferwana, Mazen; Medani, Wedad; Murad, Mohammad Hassan; Rigau, David; Rosenbaum, Sarah; Spencer, Frederick A; Treweek, Shaun; Guyatt, Gordon; Vandvik, Per Olav

2015-03-01

Bridging the gap between clinical research and everyday health-care practice requires effective communication strategies. To address current shortcomings in conveying practice recommendations and supporting evidence, we are creating and testing presentation formats for clinical practice guidelines (CPGs). We carried out multiple cycles of brainstorming and sketching, developing a prototype. Physicians participating in the user testing viewed CPG formats linked to clinical scenarios and engaged in semistructured interviews applying a think-aloud method for exploring important aspects of user experience. We developed a multilayered presentation format that allows clinicians to successively view more in-depth information. Starting with the recommendations, clinicians can, on demand, access a rationale and a key information section containing statements on quality of the evidence, balance between desirable and undesirable consequences, values and preferences, and resource considerations. We collected feedback from 27 stakeholders and performed user testing with 47 practicing physicians from six countries. Advisory group feedback and user testing of the first version revealed problems with conceptual understanding of underlying CPG methodology, as well as difficulties with the complexity of the layout and content. Extensive revisions made before the second round of user testing resulted in most participants expressing overall satisfaction with the final presentation format. We have developed an electronic, multilayered, CPG format that enhances the usability of CPGs for frontline clinicians. We have implemented the format in electronic guideline tools that guideline organizations can now use when authoring and publishing their guidelines.
Promoting Prospective Elementary Teachers' Learning to Use Formative Assessment for Life Science Instruction

NASA Astrophysics Data System (ADS)

Sabel, Jaime L.; Forbes, Cory T.; Zangori, Laura

2015-06-01

To support elementary students' learning of core, standards-based life science concepts highlighted in the Next Generation Science Standards, prospective elementary teachers should develop an understanding of life science concepts and learn to apply their content knowledge in instructional practice to craft elementary science learning environments grounded in students' thinking. To do so, teachers must learn to use high-leverage instructional practices, such as formative assessment, to engage students in scientific practices and connect instruction to students' ideas. However, teachers may not understand formative assessment or possess sufficient science content knowledge to effectively engage in related instructional practices. To address these needs, we developed and conducted research within an innovative course for preservice elementary teachers built upon two pillars—life science concepts and formative assessment. An embedded mixed methods study was used to evaluate the effect of the intervention on preservice teachers' (n = 49) content knowledge and ability to engage in formative assessment practices for science. Findings showed that increased life content knowledge over the semester helped preservice teachers engage more productively in anticipating and evaluating students' ideas, but not in identifying effective instructional strategies to respond to those ideas.
Formation of acrylamide in a processed food model system, and examination of inhibitory conditions.

PubMed

Ishihara, Katsuyuki; Matsunaga, Atsushi; Miyoshi, Takayuki; Nakamura, Kazuya; Nakayama, Takashi; Ito, Shuji; Koga, Hidenori

2005-04-01

Acrylamide (AAm) is formed from asparagine (Asn) and reducing sugar during cooking of foods at high temperature. We examined the formation of AAm in a model system using a glass fiber filter paper, and looked for suitable conditions for inhibiting AAm formation. In frying, the formation rate was about 10 times that in a moistureless oven. Increase of frying temperature and frying time increased AAm formation when the residual moisture was 5% or less. AAm increased with increasing amount of glucose (Glc) addition up to 1:1 with respect to Asn, but then decreased. On the other hand, in the case of fructose, as the amount added was increased, AAm increased accordingly. The AAm formation rate with respect to Asn increased when valine (Val) was co-present in a Glc and Asn reaction system. Cysteine and lysine inhibited the AAm formation rate. Pathways for the formation of AAm are proposed.
Nitrobenzoxadiazole-based GSTP1-1 inhibitors containing the full peptidyl moiety of (pseudo)glutathione.

PubMed

Luisi, Grazia; Mollica, Adriano; Carradori, Simone; Lenoci, Alessia; De Luca, Anastasia; Caccuri, Anna Maria

2016-12-01

The inhibition of glutathione S-transferase P1-1 (GSTP1-1) is a sound strategy to overcome drug resistance in oncology practice. The nitrobenzoxadiazolyl (NBD) S-conjugate of glutathione and the corresponding γ-oxa-glutamyl isostere (compounds 1 and 5, respectively) have been disclosed as GST inhibitors. The rationale of their design is discussed in juxtaposition to non-peptide NBD thioethers. Synthesis of derivatives 1 and 5 and in vitro evaluation on human GSTP1-1 and M2-2 are reported. Conjugates 1 and 5 were found to be low micromolar inhibitors of both isoforms. Furthermore, they display a threefold reduction in selectivity for GSTM2-2 over the P1-1 isozyme in comparison with the potent non-peptide inhibitor nitrobenzoxadiazolyl-thiohexanol (NBDHEX). Spectroscopic data are congruent with the formation of a stable sigma-complex between GSH and the inhibitors in the protein active site. Conjugate 5 is suitable for in vivo modulation of GST activity in cancer treatment.
A further tool to monitor the coffee roasting process: aroma composition and chemical indices.

PubMed

Ruosi, Manuela R; Cordero, Chiara; Cagliero, Cecilia; Rubiolo, Patrizia; Bicchi, Carlo; Sgorbini, Barbara; Liberto, Erica

2012-11-14

Coffee quality is strictly related to its flavor and aroma developed during the roasting process, that, in their turn, depend on variety and origin, harvest and postharvest practices, and the time, temperature, and degree of roasting. This study investigates the possibility of combining chemical (aroma components) and physical (color) parameters through chemometric approaches to monitor the roasting process, degree of roasting, and aroma formation by analyzing a suitable number of coffee samples from different varieties and blends. In particular, a correlation between the aroma composition of roasted coffee obtained by HS-SPME-GC-MS and degree of roasting, defined by the color, has been researched. The results showed that aroma components are linearly correlated to coffee color with a correlation factor of 0.9387. The study continued looking for chemical indices: 11 indices were found to be linearly correlated to the color resulting from the roasting process, the most effective of them being the 5-methylfurfural/2-acetylfuran ratio (index).
Determination of sulfuric acid concentration for anti-cavitation characteristics of Al alloy by two step anodizing process to forming nano porous.

PubMed

Lee, Seung-Jun; Kim, Seong-Kweon; Jeong, Jae-Yong; Kim, Seong-Jong

2014-12-01

Al alloy is a highly active metal but forms a protective oxide film having high corrosion resistance in atmosphere environment. However, the oxide film is not suitable for practical use, since the thickness of the film is not uniform and it is severly altered with formation conditions. This study focused on developing an aluminum anodizing layer having hardness, corrosion resistance and abrasion resistance equivalent to a commercial grade protective layer. Aluminum anodizing layer was produced by two-step aluminum anodizing oxide (AAO) process with different sulfuric acid concentrations, and the cavitation characteristics of the anodized coating layer was investigated. In hardness measurement, the anodized coating layer produced with 15 vol.% of sulfuric acid condition had the highest value of hardness but exhibited poor cavitation resistance due to being more brittle than those with other conditions. The 10 vol.% of sulfuric acid condition was thus considered to be the optimum condition as it had the lowest weight loss and damage depth.
Evaluation of ERTS-1 imagery for land use/resource inventory information. [image enhancement of multispectral photography

NASA Technical Reports Server (NTRS)

Hardy, E. E.; Skaley, J. E.; Phillips, E. S.

1974-01-01

This investigation was to develop a low cost, manual technique for enhancing ERTS-1 imagery and preparing it in suitable format for use by users with wide and varied interests related to land use and natural resources information. The goals were: to develop enhancement techniques based on concepts and practices extant in photographic sciences, to provide a means of allowing productive interpretation of the imagery by manual means, to produce a product at low cost, to provide a product that would have wide applications, and one compatible with existing information systems. Cost of preparation of the photographically enhanced, enlarged negatives and positives and the diazo materials is about 1 cent per square mile. Cost of creating and mapping a land use classification of twelve use types at a scale of 1:250,000 is only $1 per square mile. The product is understood by users, is economical, and is compatible with existing information systems.

Highly luminescent core-shell InP/ZnX (X = S, Se) quantum dots prepared via a phosphine synthetic route.

PubMed

Mordvinova, Natalia; Vinokurov, Alexander; Kuznetsova, Tatiana; Lebedev, Oleg I; Dorofeev, Sergey

2017-01-24

Here we report a simple method for the creation of highly luminescent core-shell InP/ZnX (X = S, Se) quantum dots (QDs) on the basis of a phosphine synthetic route. In this method a Zn precursor was added to the reaction mixture at the beginning of the synthesis to form an In(Zn)P alloy structure, which promoted the formation of a ZnX shell. Core-shell InP/ZnX QDs exhibit highly intensive emission with a quantum yield over 50%. The proposed method is primarily important for practical applications. Advantages of this method compared to the widely used SILAR technique are discussed. We further demonstrate that the SILAR approach consisting of consequent addition of Zn and chalcogen precursors to pre-prepared non-doped InP colloidal nanoparticles is not quite suitable for shell growth without the addition of special activator agents or the use of very reactive precursors.
Formative assessment as a vehicle for changing classroom practice in a specific cultural context

NASA Astrophysics Data System (ADS)

Chen, Jingping

2015-09-01

In this commentary, I interpret Xinying Yin and Gayle Ann Buck's collaborative action research from a social-cultural perspective. Classroom implementation of formative assessment is viewed as interaction between this assessment method and the local learning culture. I first identify Yin and Buck's definition of the formative assessment, and then analyze the role of formative assessment in the change of local learning culture. Based on the practice of Yin and Buck I emphasize the significance of their "bottom up" strategy to the teachers' epistemological change. I believe that this strategy may provide practicable solutions to current Chinese educational problems as well as a means for science educators to shift toward systematic professional development.
‘Toning’ up hypotonia assessment: A proposal and critique

PubMed Central

Joubert, Robin W.E.

2016-01-01

Background Clinical assessment of hypotonia is challenging due to the subjective nature of the initial clinical evaluation. This poses dilemmas for practitioners in gaining accuracy, given that the presentation of hypotonia can be either a non-threatening or malevolent sign. The research question posed was how clinical assessment can be improved, given the current contentions expressed in the scientific literature. Objectives This paper describes the development and critique of a clinical algorithm to aid the assessment of hypotonia. Methods An initial exploratory sequential phase, consisting of a systematic review, a survey amongst clinicians and a Delphi process, assisted in the development of the algorithm, which is presented within the framework of the International Classification of Functioning, Disability and Health. The ensuing critique followed a qualitative emergent–systematic focus group design with a purposive sample of 59 clinicians. Data were analysed using semantical content analysis and are presented thematically with analytical considerations. Results This study culminated in the development of an evidence-based clinical algorithm for practice. The qualitative critique of the algorithm considered aspects such as inadequacies, misconceptions and omissions; strengths; clinical use; resource implications; and recommendations. Conclusions The first prototype and critique of a clinical algorithm to assist the clinical assessment of hypotonia in children has been described. Barriers highlighted include aspects related to knowledge gaps of clinicians, issues around user-friendliness and formatting concerns. Strengths identified by the critique included aspects related to the evidence-based nature of the criteria within the algorithm, the suitability of the algorithm in being merged or extending current practice, the potential of the algorithm in aiding more accurate decision-making, the suitability of the algorithm across age groups and the logical flow. These findings provide a starting point towards ascertaining the clinical utility of the algorithm as an essential step towards evidence-based praxis. PMID:28730054
The long case and its modifications: a literature review.

PubMed

Ponnamperuma, Gominda G; Karunathilake, Indika M; McAleer, Sean; Davis, Margery H

2009-10-01

This review provides a summary of the published literature on the suitability of the long case and its modifications for high-stakes assessment. Databases related to medicine were searched for articles published from 2000 to 2008, using the keywords 'long case', 'clinical examinations' and 'clinical assessment'. Reference lists of review articles were hand-searched. Articles related to the objective structured clinical examination were eliminated. Research-based articles with hard data were given more emphasis in this review than those based on opinion. Eighteen articles were identified. The main disadvantage of the long case is its inability to sample the curriculum widely, resulting in low reliability. The main advantage of the long case is its ability to assess the candidate's overall (holistic) approach to the patient. Modifications to the long case attempt to: structure the format and the marking scheme; increase the number of examiners; observe the candidate's behaviour, and increase the number of cases. The long case is a traditional clinical examination format for the assessment of clinical competence and assessment at this level is important. The starting point for the majority of recent research on the long case has been an acceptance of its low reliability and modifications to the format have been proposed. Further evidence of the efficacy of these modifications is required, however, before they can be recommended for summative assessment. If further research is to be undertaken on the long case, it should focus on finding practicable ways of sampling the curriculum widely to increase reliability while maintaining the holistic approach towards the patient, which represents the attraction of the long case.
Interpretations of the patient-therapist relationship in brief dynamic psychotherapy : effects on long-term mode-specific changes.

PubMed

Amlo, S; Engelstad, V; Fossum, A; Sørlie, T; Høglend, P; Heyerdahl, O; Sørbye, O

1993-01-01

The authors examined whether persistent analysis of the patient-therapist relationship in brief dynamic psychotherapy favorably affects long-term dynamic change in patients initially deemed suitable for such treatment. As in common practice, 22 highly suitable patients were given a high number of transference interpretations per session. A comparison group of 21 patients with lower suitability received the same treatment, but transference interpretations were withheld. Statistical adjustment for the deliberate nonequivalence in pretreatment suitability indicated a significant negative effect of high numbers of transference interpretations on long-term dynamic changes. Demographic variables, DSM-III diagnoses, additional treatment, life events in the follow-up years, or therapist effects did not explain or obscure the findings.
Training Effects on Teachers' Feedback Practice: The Mediating Function of Feedback Knowledge and the Moderating Role of Self-Efficacy

ERIC Educational Resources Information Center

Schütze, Birgit; Rakoczy, Katrin; Klieme, Eckhard; Besser, Michael; Leiss, Dominik

2017-01-01

Formative assessment has been identified as a promising intervention to support students' learning. How to successfully implement this means of assessment, however, is still an open issue. This study contributes to the implementation of formative assessment by analyzing the impact of a training measure on teachers' formative feedback practice,…
Research and Teaching: Exploring the Use of an Online Quiz Game to Provide Formative Feedback in a Large-Enrollment, Introductory Biochemistry Course

ERIC Educational Resources Information Center

Milner, Rachel; Parrish, Jonathan; Wright, Adrienne; Gnarpe, Judy; Keenan, Louanne

2015-01-01

In a large-enrollment, introductory biochemistry course for nonmajors, the authors provide students with formative feedback through practice questions in PDF format. Recently, they investigated possible benefits of providing the practice questions via an online game (Brainspan). Participants were randomly assigned to either the online game group…
Adaptation of Teachers' Conceptions and Practices of Formative Assessment Scale into Turkish Culture and a Structural Equation Modeling

ERIC Educational Resources Information Center

Karaman, Pinar; Sahin, Çavus

2017-01-01

The purpose of this study was to adapt Teachers' Conceptions and Practices of Formative Assessment Scale (TCPFS) based on the Theory of Planned Behavior (TPB) into Turkish culture and apply the TPB to examine teachers' intentions and behaviors regarding formative assessment. After examining linguistic validity of the scale, Turkish scale was…
Blending Formative and Summative Assessment in a Capstone Subject: "It's Not Your Tools, It's How You Use Them"

ERIC Educational Resources Information Center

Houston, Don; Thompson, James N.

2017-01-01

Discussions about the relationships between formative and summative assessment have come full circle after decades of debate. For some time formative assessment with its emphasis on feedback to students was promoted as better practice than traditional summative assessment. Summative assessment practices were broadly criticised as distanced from…
ARCADO - Adding random case analysis to direct observation in workplace-based formative assessment of general practice registrars.

PubMed

Ingham, Gerard; Fry, Jennifer; Morgan, Simon; Ward, Bernadette

2015-12-10

Workplace-based formative assessments using consultation observation are currently conducted during the Australian general practice training program. Assessment reliability is improved by using multiple assessment methods. The aim of this study was to explore experiences of general practice medical educator assessors and registrars (trainees) when adding random case analysis to direct observation (ARCADO) during formative workplace-based assessments. A sample of general practice medical educators and matched registrars were recruited. Following the ARCADO workplace assessment, semi-structured qualitative interviews were conducted. The data was analysed thematically. Ten registrars and eight medical educators participated. Four major themes emerged - formative versus summative assessment; strengths (acceptability, flexibility, time efficiency, complementarity and authenticity); weaknesses (reduced observation and integrity risks); and contextual factors (variation in assessment content, assessment timing, registrar-medical educator relationship, medical educator's approach and registrar ability). ARCADO is a well-accepted workplace-based formative assessment perceived by registrars and assessors to be valid and flexible. The use of ARCADO enabled complementary insights that would not have been achieved with direct observation alone. Whilst there are some contextual factors to be considered in its implementation, ARCADO appears to have utility as formative assessment and, subject to further evaluation, high-stakes assessment.
Comparison of seven fall risk assessment tools in community-dwelling Korean older women.

PubMed

Kim, Taekyoung; Xiong, Shuping

2017-03-01

This study aimed to compare seven widely used fall risk assessment tools in terms of validity and practicality, and to provide a guideline for choosing appropriate fall risk assessment tools for elderly Koreans. Sixty community-dwelling Korean older women (30 fallers and 30 matched non-fallers) were evaluated. Performance measures of all tools were compared between the faller and non-faller groups through two sample t-tests. Receiver Operating Characteristic curves were generated with odds ratios for discriminant analysis. Results showed that four tools had significant discriminative power, and the shortened version of Falls Efficacy Scale (SFES) showed excellent discriminant validity, followed by Berg Balance Scale (BBS) with acceptable discriminant validity. The Mini Balance Evaluation System Test and Timed Up and Go, however, had limited discriminant validities. In terms of practicality, SFES was also excellent. These findings suggest that SFES is the most suitable tool for assessing the fall risks of community-dwelling Korean older women, followed by BBS. Practitioner Summary: There is no general guideline on which fall risk assessment tools are suitable for community-dwelling Korean older women. This study compared seven widely used assessment tools in terms of validity and practicality. Results suggested that the short Falls Efficacy Scale is the most suitable tool, followed by Berg Balance Scale.
Formate Assimilation: The Metabolic Architecture of Natural and Synthetic Pathways.

PubMed

Bar-Even, Arren

2016-07-19

Formate may become an ideal mediator between the physicochemical and biological realms, as it can be produced efficiently from multiple available sources, such as electricity and biomass, and serve as one of the simplest organic compounds for providing both carbon and energy to living cells. However, limiting the realization of formate as a microbial feedstock is the low diversity of formate-fixing enzymes and thereby the small number of naturally occurring formate-assimilation pathways. Here, the natural enzymes and pathways supporting formate assimilation are presented and discussed together with proposed synthetic routes that could permit growth on formate via existing as well as novel formate-fixing reactions. By considering such synthetic routes, the diversity of metabolic solutions for formate assimilation can be expanded dramatically, such that different host organisms, cultivation conditions, and desired products could be matched with the most suitable pathway. Astute application of old and new formate-assimilation pathways may thus become a cornerstone in the development of sustainable strategies for microbial production of value-added chemicals.
Case Series of a Knowledge Translation Intervention to Increase Upper Limb Exercise in Stroke Rehabilitation.

PubMed

Connell, Louise A; McMahon, Naoimh E; Tyson, Sarah F; Watkins, Caroline L; Eng, Janice J

2016-12-01

Current approaches to upper limb rehabilitation are not sufficient to drive neural reorganization and maximize recovery after stroke. To address this evidence-practice gap, a knowledge translation intervention using the Behaviour Change Wheel was developed. The intervention involves collaboratively working with stroke therapy teams to change their practice and increase therapy intensity by therapists prescribing supplementary self-directed arm exercise. The purposes of this case series are: (1) to provide an illustrative example of how a research-informed process changed clinical practice and (2) to report on staff members' and patients' perceptions of the utility of the developed intervention. A participatory action research approach was used in 3 stroke rehabilitation units in the United Kingdom. The intervention aimed to change 4 therapist-level behaviors: (1) screening patients for suitability for supplementary self-directed arm exercise, (2) provision of exercises, (3) involving family and caregivers in assisting with exercises, and (4) monitoring and progressing exercises. Data on changes in practice were collected by therapy teams using a bespoke audit tool. Utility of the intervention was explored in qualitative interviews with patients and staff. Components of the intervention were successfully embedded in 2 of the 3 stroke units. At these sites, almost all admitted patients were screened for suitability for supplementary self-directed exercise. Exercises were provided to 77%, 70%, and 88% of suitable patients across the 3 sites. Involving family and caregivers and monitoring and progressing exercises were not performed consistently. This case series is an example of how a rigorous research-informed knowledge translation process resulted in practice change. Research is needed to demonstrate that these changes can translate into increased intensity of upper limb exercise and affect patient outcomes. © 2016 American Physical Therapy Association.
Nanodisc-Tm: Rapid functional assessment of nanodisc reconstituted membrane proteins by CPM assay.

PubMed

Ashok, Yashwanth; Jaakola, Veli-Pekka

2016-01-01

Membrane proteins are generally unstable in detergents. Therefore, biochemical and biophysical studies of membrane proteins in lipidic environments provides a near native-like environment suitable for membrane proteins. However, manipulation of proteins embedded in lipid bilayer has remained difficult. Methods such as nanodiscs and lipid cubic phase have been developed for easy manipulation of membrane proteins and have yielded significant insights into membrane proteins. Traditionally functional reconstitution of receptors in nanodiscs has been studied with radioligands. We present a simple and faster method for studying the functionality of reconstituted membrane proteins for routine characterization of protein batches after initial optimization of suitable conditions using radioligands. The benefits of the method are •Faster and generic method to assess functional reconstitution of membrane proteins.•Adaptable in high throughput format (≥96 well format).•Stability measurement in near-native lipid environment and lipid dependent melting temperatures.
Agreement of three interpretation systems of intrapartum foetal heart rate monitoring by different levels of physicians.

PubMed

Pruksanusak, Ninlapa; Thongphanang, Putthaporn; Chainarong, Natthicha; Suntharasaj, Thitima; Kor-Anantakul, Ounjai; Suwanrath, Chitkasaem; Petpichetchian, Chusana

2017-11-01

A prospective study was conducted in centre in Southern Thailand, to evaluate agreement in EFM interpretation among various physicians in order to find out the most practical system for daily use. We found strong agreement of very normal FHR tracings among the FIGO, NICHD 3-tier and 5-tier systems. The NICHD 3-tier was more compatible with the FIGO system than 5-tier system. Overall inter-observer agreement was moderate for the NICHD 3-tier system while inter-observer agreement of 5-tier system was fair also the intra-observer agreement was higher in the NICHD 3-tier system. So the 3-tier systems are more suitable than the 5-tier system in general obstetric practice. Impact statement What is already known on this subject: The 3-tier and 5-tier systems were widely used in general obstetrics practice. What the results of this study add: The inter- and intra-observer agreement of NICHD 3-tier system was higher than the 5-tier system. What the implications are of these findings for clinical practice and/or further research: The 3-tier systems were more suitable than the 5-tier systems in general obstetrics practice.
An Analysis of Technology Transition Within the Department of Defense

DTIC Science & Technology

2010-06-01

relentless adversaries, it is essential that the DoD performs technology transition in a practical yet expedient manner. Time is a critical factor in...themselves, rather than rely on DOD labs to do so—a practice that brings cost and schedule risk since programs may well find themselves addressing problems...that utilized non-traditional, industry practices to abate the difficulties bringing technologies to a suitable maturation state. Albeit these
Determining Home Range and Preferred Habitat of Feral Horses on the Nevada National Security Site Using Geographic Information Systems

DOE Office of Scientific and Technical Information (OSTI.GOV)

Burns, Ashley V.

2014-05-30

Feral horses (Equus caballus) are free-roaming descendants of domesticated horses and legally protected by the Wild and Free-Roaming Horses and Burros Act of 1971, which mandates how feral horses and burros should be managed and protected on federal lands. Using a geographic information system to determine the home range and suitable habitat of feral horses on the federally managed Nevada National Security Site can enable wildlife biologists in making best management practice recommendations. Home range was estimated at 88.1 square kilometers. Site suitability was calculated for elevation, forage, slope, water presence and horse observations. These variables were combined in successivemore » iterations into one polygon. Suitability rankings established that 85 square kilometers are most suitable habitat, with 2,052 square kilometers of good habitat 1,252 square kilometers of fair habitat and 122 square kilometers of least suitable habitat.« less
Epitaxial Hexagonal Ferrites for Millimeter Wave Tunable Filters.

DTIC Science & Technology

1982-12-13

form of thin films or slabs, the LPE format should be particularly suitable. Another potential advantage of the LPE format is that the insulating...flux (solvent). In effect, this emulates the successful LPE garnet (YIG) technology which employs this flux. In contrast to garnets , Pb atoms can be...member for a workshop entitled "Application of Garnet and Ferrite Thin Films to Microwave Devices." The principal investigator also attended the 6th
The effectiveness and feasibility of TREAT (Tailoring Research Evidence and Theory) journal clubs in allied health: a randomised controlled trial.

PubMed

Wenke, Rachel J; Thomas, Rae; Hughes, Ian; Mickan, Sharon

2018-05-09

Journal clubs (JC) may increase clinicians' evidence-based practice (EBP) skills and facilitate evidence uptake in clinical practice, however there is a lack of research into their effectiveness in allied health. We investigated the effectiveness of a structured JC that is Tailored According to Research Evidence And Theory (TREAT) in improving EBP skills and practice compared to a standard JC format for allied health professionals. Concurrently, we explored the feasibility of implementing TREAT JCs in a healthcare setting, by evaluating participating clinicians' perceptions and satisfaction. We conducted an explanatory mixed methods study involving a cluster randomised controlled trial with a nested focus group for the intervention participants. Nine JCs with 126 allied health participants were randomly allocated to receive either the TREAT or standard JC format for 1 h/month for 6 months. We conducted pre-post measures of EBP skills and attitudes using the EBP questionnaire and Assessing Competence in Evidence-Based Medicine tool and a tailored satisfaction and practice change questionnaire. Post-intervention, we also conducted a focus group with TREAT participants to explore their perceptions of the format. There were no significant differences between JC formats in EBP skills, knowledge or attitudes or influence on clinical practice, with participants maintaining intermediate level skills across time points. Participants reported significantly greater satisfaction with the organisation of the TREAT format. Participants in both groups reported positive changes to clinical practice. Perceived outcomes to the TREAT format and facilitating mechanisms were identified including the use of an academic facilitator, group appraisal approach and consistent appraisal tools which assisted skill development and engagement. It is feasible to implement an evidence-based JC for allied health clinicians. While clinicians were more satisfied with the TREAT format, it did not significantly improve their EBP skills, attitudes, knowledge and/or practice, when compared to the standard format. The use of an academic facilitator, group based critical appraisal, and the consistent use of appraisal tools were perceived as useful components of the JC format. A structured JC may maintain EBP skills in allied health clinicians and facilitate engagement, however additional training may be required to further enhance EBP skills. ACTRN12616000811404 Retrospectively registered 21 June 2016.
A sensor data format incorporating battery charge information for smartphone-based mHealth applications

NASA Astrophysics Data System (ADS)

Escobar, Rodrigo; Akopian, David; Boppana, Rajendra

2015-03-01

Remote health monitoring systems involve energy-constrained devices, such as sensors and mobile gateways. Current data formats for communication of health data, such as DICOM and HL7, were not designed for multi-sensor applications or to enable the management of power-constrained devices in health monitoring processes. In this paper, a data format suitable for collection of multiple sensor data, including readings and other operational parameters is presented. By using the data format, the system management can assess energy consumptions and plan realistic monitoring scenarios. The proposed data format not only outperforms other known data formats in terms of readability, flexibility, interoperability and validation of compliant documents, but also enables energy assessment capability for realistic data collection scenarios and maintains or even reduces the overhead introduced due to formatting. Additionally, we provide analytical methods to estimate incremental energy consumption by various sensors and experiments to measure the actual battery drain on smartphones.

The Possibilities and Limitations of Assessment for Learning: Exploring the Theory of Formative Assessment and the Notion of "Closing the Learning Gap"

ERIC Educational Resources Information Center

Ninomiya, Shuichi

2016-01-01

Black and Wiliam (1998a, 1998b) demonstrate that formative assessment is one of the most effective strategies for promoting student learning. Since the publication of their reviews, formative assessment has gained increasing international prominence in both policy and practice. However, despite this early innovation, the theory and practice of…
Using Formative Assessment to Facilitate Learner Self-Regulation: A Case Study of Assessment Practices and Student Perceptions in Hong Kong

ERIC Educational Resources Information Center

Jing Jing, Ma

2017-01-01

One of the key aims of formative assessment in higher education is to enable students to become self-regulated learners (Nicol & Macfarlane-Dick, 2006). Based on Nicol and Macfarlane-Dick's (2006) framework, this exploratory study investigates which formative assessment practices proposed by them were used by one college EFL writing teacher to…
Nanoengineered membrane electrode assembly interface

DOEpatents

Song, Yujiang; Shelnutt, John A

2013-08-06

A membrane electrode structure suitable for use in a membrane electrode assembly (MEA) that comprises membrane-affixed metal nanoparticles whose formation is controlled by a photochemical process that controls deposition of the metal nanoparticles using a photocatalyst integrated with a polymer electrolyte membrane, such as an ionomer membrane. Impregnation of the polymer membrane with the photocatalyst prior to metal deposition greatly reduces the required amount of metal precursor in the deposition reaction solution by restricting metal reduction substantially to the formation of metal nanoparticles affixed on or near the surface of the polymer membrane with minimal formation of metallic particles not directly associated with the membrane.
Suitability Assessment of Printed Dietary Guidelines for Pregnant Women and Parents of Infants and Toddlers From 7 European Countries.

PubMed

Garnweidner-Holme, Lisa Maria; Dolvik, Stina; Frisvold, Cathrine; Mosdøl, Annhild

2016-02-01

To evaluate selected European printed dietary guidelines for pregnant women and parents of infants and toddlers using the suitability assessment of materials (SAM) method. A descriptive study to determine the suitability of 14 printed dietary guidelines from 7 European countries based on deductive quantitative analyses. Materials varied greatly in format and content: 35.7% of materials were rated superior and 64.3% were rated adequate according to the overall SAM score for patient education material. None of the materials were scored not suitable. Among the categories, the highest average scores were for layout and typography and the lowest average scores were for cultural appropriateness and learning stimulation and motivation. Interrater reliability ranged from Cohen's kappa of 0.37 to 0.62 (mean, 0.41), indicating fair to moderate agreement among the 3 investigators. Overall, the suitability of the assessed printed dietary guidelines was adequate. Based on the SAM methodology, printed dietary guidelines may increase in suitability by emphasizing aspects related to health literacy and accommodating the needs of different food cultures within a population. Copyright © 2016 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.
Journeys to School Leadership: How Action Learning Identified What Participants Valued in a Year-Long Australian Leadership Development Program Centered on Principles of Good Practice

ERIC Educational Resources Information Center

McCulla, Norman; Degenhardt, Leoni

2016-01-01

The need to identify and suitably prepare teachers to undertake school leadership roles especially as principals is now well documented in the literature. Similarly documented is the general concern about the lack of suitable applicants willing to consider the role. This study raised the question of what might be learnt when a…
Politics, Policy and Practice: How Suitable is Australian Business As a Model for Emulation?

ERIC Educational Resources Information Center

Cornford, Ian

This paper examines and critiques the Australian Federal Government's efforts to put pressure on universities to increase the links between business and universities and to adopt more business practices. Examination of the 1992 and 1993 World Competitiveness Reports reveal ratings which cast serious doubt about the effectiveness of Australian…
Culturally Adapted Psychotherapy and the Legitimacy of Myth: A Direct-Comparison Meta-Analysis

ERIC Educational Resources Information Center

Benish, Steven G.; Quintana, Stephen; Wampold, Bruce E.

2011-01-01

Psychotherapy is a culturally encapsulated healing practice that is created from and dedicated to specific cultural contexts (Frank & Frank, 1993; Wampold, 2007; Wrenn, 1962). Consequently, conventional psychotherapy is a practice most suitable for dominant cultural groups within North America and Western Europe but may be culturally incongruent…
Practical Teaching & Learning Model: A Modern Dimension for Business Management Schools

ERIC Educational Resources Information Center

Kolachi, Nadir Ali

2013-01-01

Purpose: The purpose of this research is to evaluate and investigate the most suitable model required for teaching business Management curriculum. The paper will report a new dimension of Business Management Teaching. For this purpose, a Practical teaching & Learning Model has been prepared and will be discussed through qualitative research…
A Restoration Suitability Index Model for the Eastern Oyster (Crassostrea virginica) in the Mission-Aransas Estuary, TX, USA

PubMed Central

Beseres Pollack, Jennifer; Cleveland, Andrew; Palmer, Terence A.; Reisinger, Anthony S.; Montagna, Paul A.

2012-01-01

Oyster reefs are one of the most threatened marine habitats on earth, with habitat loss resulting from water quality degradation, coastal development, destructive fishing practices, overfishing, and storm impacts. For successful and sustainable oyster reef restoration efforts, it is necessary to choose sites that support long-term growth and survival of oysters. Selection of suitable sites is critically important as it can greatly influence mortality factors and may largely determine the ultimate success of the restoration project. The application of Geographic Information Systems (GIS) provides an effective methodology for identifying suitable sites for oyster reef restoration and removes much of the uncertainty involved in the sometimes trial and error selection process. This approach also provides an objective and quantitative tool for planning future oyster reef restoration efforts. The aim of this study was to develop a restoration suitability index model and reef quality index model to characterize locations based on their potential for successful reef restoration within the Mission-Aransas Estuary, Texas, USA. The restoration suitability index model focuses on salinity, temperature, turbidity, dissolved oxygen, and depth, while the reef quality index model focuses on abundance of live oysters, dead shell, and spat. Size-specific Perkinsus marinus infection levels were mapped to illustrate general disease trends. This application was effective in identifying suitable sites for oyster reef restoration, is flexible in its use, and provides a mechanism for considering alternative approaches. The end product is a practical decision-support tool that can be used by coastal resource managers to improve oyster restoration efforts. As oyster reef restoration activities continue at small and large-scales, site selection criteria are critical for assisting stakeholders and managers and for maximizing long-term sustainability of oyster resources. PMID:22792410
Spacecraft formation control using analytical finite-duration approaches

NASA Astrophysics Data System (ADS)

Ben Larbi, Mohamed Khalil; Stoll, Enrico

2018-03-01

This paper derives a control concept for formation flight (FF) applications assuming circular reference orbits. The paper focuses on a general impulsive control concept for FF which is then extended to the more realistic case of non-impulsive thrust maneuvers. The control concept uses a description of the FF in relative orbital elements (ROE) instead of the classical Cartesian description since the ROE provide a direct insight into key aspects of the relative motion and are particularly suitable for relative orbit control purposes and collision avoidance analysis. Although Gauss' variational equations have been first derived to offer a mathematical tool for processing orbit perturbations, they are suitable for several different applications. If the perturbation acceleration is due to a control thrust, Gauss' variational equations show the effect of such a control thrust on the Keplerian orbital elements. Integrating the Gauss' variational equations offers a direct relation between velocity increments in the local vertical local horizontal frame and the subsequent change of Keplerian orbital elements. For proximity operations, these equations can be generalized from describing the motion of single spacecraft to the description of the relative motion of two spacecraft. This will be shown for impulsive and finite-duration maneuvers. Based on that, an analytical tool to estimate the error induced through impulsive maneuver planning is presented. The resulting control schemes are simple and effective and thus also suitable for on-board implementation. Simulations show that the proposed concept improves the timing of the thrust maneuver executions and thus reduces the residual error of the formation control.
Determining the most suitable areas for artificial groundwater recharge via an integrated PROMETHEE II-AHP method in GIS environment (case study: Garabaygan Basin, Iran).

PubMed

Nasiri, Hossein; Boloorani, Ali Darvishi; Sabokbar, Hassan Ali Faraji; Jafari, Hamid Reza; Hamzeh, Mohamad; Rafii, Yusef

2013-01-01

Flood spreading is a suitable strategy for controlling and benefiting from floods. Selecting suitable areas for flood spreading and directing the floodwater into permeable formations are amongst the most effective strategies in flood spreading projects. Having combined geographic information systems (GIS) and multi-criteria decision analysis approaches, the present study sought to locate the most suitable areas for flood spreading operation in the Garabaygan Basin of Iran. To this end, the data layers relating to the eight effective factors were prepared in GIS environment. This stage was followed by elimination of the exclusionary areas for flood spreading while determining the potentially suitable ones. Having closely examined the potentially suitable areas using the Preference Ranking Organization Method for Enrichment Evaluations (PROMETHEE) II and analytic hierarchy process (AHP) methods, the land suitability map for flood spreading was produced. The PROMETHEE II and AHP were used for ranking all the alternatives and weighting the criteria involved, respectively. The results of the study showed that most suitable areas for the artificial groundwater recharge are located in Quaternary Q(g) and Q(gsc) geologic units and in geomorphological units of pediment and Alluvial fans with slopes not exceeding 3%. Furthermore, significant correspondence between the produced map and the control areas, where the flood spreading projects were successfully performed, provided further evidence for the acceptable efficiency of the integrated PROMETHEE II-AHP method in locating suitable flood spreading areas.
Coupling of pollination services and coffee suitability under climate change.

PubMed

Imbach, Pablo; Fung, Emily; Hannah, Lee; Navarro-Racines, Carlos E; Roubik, David W; Ricketts, Taylor H; Harvey, Celia A; Donatti, Camila I; Läderach, Peter; Locatelli, Bruno; Roehrdanz, Patrick R

2017-09-26

Climate change will cause geographic range shifts for pollinators and major crops, with global implications for food security and rural livelihoods. However, little is known about the potential for coupled impacts of climate change on pollinators and crops. Coffee production exemplifies this issue, because large losses in areas suitable for coffee production have been projected due to climate change and because coffee production is dependent on bee pollination. We modeled the potential distributions of coffee and coffee pollinators under current and future climates in Latin America to understand whether future coffee-suitable areas will also be suitable for pollinators. Our results suggest that coffee-suitable areas will be reduced 73-88% by 2050 across warming scenarios, a decline 46-76% greater than estimated by global assessments. Mean bee richness will decline 8-18% within future coffee-suitable areas, but all are predicted to contain at least 5 bee species, and 46-59% of future coffee-suitable areas will contain 10 or more species. In our models, coffee suitability and bee richness each increase (i.e., positive coupling) in 10-22% of future coffee-suitable areas. Diminished coffee suitability and bee richness (i.e., negative coupling), however, occur in 34-51% of other areas. Finally, in 31-33% of the future coffee distribution areas, bee richness decreases and coffee suitability increases. Assessing coupled effects of climate change on crop suitability and pollination can help target appropriate management practices, including forest conservation, shade adjustment, crop rotation, or status quo, in different regions.
Theoretical and Practical Issues That Are Relevant When Scaling Up hMSC Microcarrier Production Processes

PubMed Central

Jossen, Valentin; Schirmer, Cedric; Mostafa Sindi, Dolman; Eibl, Regine; Kraume, Matthias; Pörtner, Ralf; Eibl, Dieter

2016-01-01

The potential of human mesenchymal stem cells (hMSCs) for allogeneic cell therapies has created a large amount of interest. However, this presupposes the availability of efficient scale-up procedures. Promising results have been reported for stirred bioreactors that operate with microcarriers. Recent publications focusing on microcarrier-based stirred bioreactors have demonstrated the successful use of Computational Fluid Dynamics (CFD) and suspension criteria (N S1u, N S1) for rapidly scaling up hMSC expansions from mL- to pilot scale. Nevertheless, one obstacle may be the formation of large microcarrier-cell-aggregates, which may result in mass transfer limitations and inhomogeneous distributions of stem cells in the culture broth. The dependence of microcarrier-cell-aggregate formation on impeller speed and shear stress levels was investigated for human adipose derived stromal/stem cells (hASCs) at the spinner scale by recording the Sauter mean diameter (d 32) versus time. Cultivation at the suspension criteria provided d 32 values between 0.2 and 0.7 mm, the highest cell densities (1.25 × 106 cells mL−1 hASCs), and the highest expansion factors (117.0 ± 4.7 on day 7), while maintaining the expression of specific surface markers. Furthermore, suitability of the suspension criterion N S1u was investigated for scaling up microcarrier-based processes in wave-mixed bioreactors for the first time. PMID:26981131
If I Experience Formative Assessment Whilst Studying at University, Will I Put It into Practice Later as a Teacher? Formative and Shared Assessment in Initial Teacher Education (ITE)

ERIC Educational Resources Information Center

Hamodi, Carolina; López-Pastor, Víctor Manuel; López-Pastor, Ana Teresa

2017-01-01

The aim of this article is to analyse whether having experience of formative assessment during their initial teacher education courses (ITE) influences graduates' subsequent practice as teachers. That is, if the assessment methods that university students are subject to during their learning process are then actually employed by them during their…
Use of the Real Time xCelligence System for Purposes of Medical Microbiology.

PubMed

Junka, Adam Feliks; Janczura, Adriana; Smutnicka, Danuta; Mączyńska, Beata; Anna, Secewicz; Nowicka, Joanna; Bartoszewicz, Marzenna; Gościniak, Grażyna

2012-09-28

Roche's xCelligence impedance-measuring instrument is one of a few commercially available systems of such type. According to the best knowledge of authors, instrument was tested so far only for eukaryotic cell research. The aim of this work was to estimate xCELLigence suitability for the microbiological tests, including (i) measurement of morphological changes in eukaryotic cells as a result of bacterial toxin activity, (ii) measurement of bacterial biofilm formation and (iii) impact of antiseptics on the biofilm structure. To test the infuence of bacterial LT enterotoxin on eukaryotic cell lines, Chinese Hamster Ovary (CHO) cell line and reference strain Escherichia coli ATTC 35401 were used. To investigate Roche's instrument ability to measure biofilm formation and impact of antiseptics on its development, Staphylococcus aureus ATTC6538 reference strain was used. The data generated during the experiments indicate excellent ability of xCelligence instrument to detect cytopathic effect caused by bacterial LT endotoxin and to detect staphylococcal biofilm formation. However, interpretation of the results obtained during real-time measurement of antiseptic's bactericidal activity against staphylococcal biofilm, caused many difficulties. xCelligence instrument can be used for real-time monitoring of morphological changes in CHO cells treated with bacterial LT enterotoxin and for real-time measurement of staphylococcal biofilm formation in vitro. Further investigation is necessary to confirm suitability of system to analyze antiseptic's antimicrobial activity against biofilm in vitro.
How To Use A Dental Dam As A Barrier For Oral Sex

MedlinePlus

... Hepatitis Ebola Zika Global AIDS Sexual Health NCHHSTP Dental Dam Use Language: English (US) Español (Spanish) Format: ... suitable for some audiences How To Use A Dental Dam As A Barrier For Oral Sex Dental ...
Formation flying benefits based on vortex lattice calculations

NASA Technical Reports Server (NTRS)

Maskew, B.

1977-01-01

A quadrilateral vortex-lattice method was applied to a formation of three wings to calculate force and moment data for use in estimating potential benefits of flying aircraft in formation on extended range missions, and of anticipating the control problems which may exist. The investigation led to two types of formation having virtually the same overall benefits for the formation as a whole, i.e., a V or echelon formation and a double row formation (with two staggered rows of aircraft). These formations have unequal savings on aircraft within the formation, but this allows large longitudinal spacings between aircraft which is preferable to the small spacing required in formations having equal benefits for all aircraft. A reasonable trade-off between a practical formation size and range benefit seems to lie at about three to five aircraft with corresponding maximum potential range increases of about 46 percent to 67 percent. At this time it is not known what fraction of this potential range increase is achievable in practice.
A Survey and Evaluation of Simulators Suitable for Teaching Courses in Computer Architecture and Organization

ERIC Educational Resources Information Center

Nikolic, B.; Radivojevic, Z.; Djordjevic, J.; Milutinovic, V.

2009-01-01

Courses in Computer Architecture and Organization are regularly included in Computer Engineering curricula. These courses are usually organized in such a way that students obtain not only a purely theoretical experience, but also a practical understanding of the topics lectured. This practical work is usually done in a laboratory using simulators…
Youth Sexual Offending: Context, Good-Enough Lives, and Engaging with a Wider Prevention Agenda

ERIC Educational Resources Information Center

Smallbone, Stephen; Rayment-Mchugh, Susan; Smith, Dimity

2013-01-01

In this article we reflect on developments in our thinking and practice concerning youth sexual offending. We put the case that context is critical to understanding and responding to the problem, and accordingly that a social ecological model provides the most suitable conceptual and practice framework for clinical efforts with this population. We…
Getting on the Conference Program and Writing a Practical Article: Templates for Success

ERIC Educational Resources Information Center

Jalongo, Mary Renck

2013-01-01

For many early childhood professionals, their initial foray into writing for publication consists of preparing a conference proposal for a workshop/training type of session and producing a manuscript suitable for publication as a practical article in a professional journal. The primary purpose of the article is to provide authors with templates,…

Red-cockaded woodpeckers and silvicultural practice: is uneven-aged silviculture preferable to even-aged?

Treesearch

D. Craig Rudolph; Richard N. Conner

1996-01-01

The endangered red-cockaded woodpecker (Picoides borealis) has become a high-profile management issue in the southeastern United States. Suitable habitat consists of mature to old pine, or mixed pine-hardwood forest, with minimal hardwood midstory vegetation. Loss of habitat, detrimental silvicultural practices, and changes in the fire regime have...
The Influence of Theoretical Tools on Teachers' Orientation to Notice and Classroom Practice: A Case Study

ERIC Educational Resources Information Center

Mellone, Maria

2011-01-01

Assumptions about the construction and the transmission of knowledge and about the nature of mathematics always underlie any teaching practice, even if often unconsciously. I examine the conjecture that theoretical tools suitably chosen can help the teacher to make such assumptions explicit and to support the teacher's reflection on his/her…
A Practical Introduction to Restorative Practice in Schools: Theory, Skills and Guidance

ERIC Educational Resources Information Center

Hansberry, Bill

2016-01-01

Proven to reduce bad behaviour and exclusions, and encourage happier, safer school environments, restorative justice is an effective approach to conflict resolution. Suitable for education settings from preschool to college, this guide explains what restorative justice is, how it can be used in schools, what it looks like in the classroom and how…
Apparatus for installing condition-sensing means in subterranean earth formations

DOEpatents

Shuck, Lowell Z.

1981-01-01

The present invention is directed to an apparatus for installing strain gages or other sensors-transducers in wellbores penetrating subterranean earth formations. The subject apparatus comprises an assembly which is lowered into the wellbore, secured in place, and then actuated to sequentially clean the wellbore or casing surface at a selected location with suitable solvents, etchants and neutralizers, grind the surface to a relatively smooth finish, apply an adhesive to the surface, and attach the strain gages or the like to the adhesive-bearing surface. After installing the condition-sensing gages to the casing or earth formation the assembly is withdrawn from the wellbore leaving the sensing gages securely attached to the casing or the subterranean earth formation.
Core Pedagogy: Individual Uncertainty, Shared Practice, Formative Ethos

ERIC Educational Resources Information Center

Dotger, Benjamin H.

2015-01-01

Attention to the core practices of teaching necessitates core pedagogies in teacher preparation. This article outlines the diffusion of one such pedagogy from medical to teacher education. The concept of clinical simulations is outlined through the lens of "signature pedagogies" and their uncertain, engaging, formative qualities.…
[Cultural regionalization for Notopterygium incisum based on 3S technology platform. I. Evaluation for growth suitability for N. incisum based on ecological factors analysis by Maxent and ArcGIS model].

PubMed

Sun, Hong-bing; Sun, Hui; Jiang, Shun-yuan; Zhou, Yi; Cao, Wen-long; Ji, Ming-chang; Zhy, Wen-tao; Yan, Han-jing

2015-03-01

Growth suitability as assessment indicators for medicinal plants cultivation was proposed based on chemical quality determination and ecological factors analysis by Maxent and ArcGIS model. Notopterygium incisum, an endangered Chinese medicinal plant, was analyzed as a case, its potential distribution areas at different suitability grade and regionalization map were formulated based on growth suitability theory. The results showed that the most suitable habitats is Sichuan province, and more than 60% of the most suitable areawas located in the western Sichuan such as Aba and Ganzi prefectures for N. incisum. The results indicated that habitat altitude, average air temperature in September, and vegetation types were the dominant factors contributing to the grade of plant growth, precipitation and slope were the major factors contributing to notopterol accumulation in its underground parts, while isoimperatorin in its underground parts was negatively corelated with precipitation and slope of its habitat. However, slope as a factor influencing chemical components seemed to be a pseudo corelationship. Therefore, there were distinguishing differences between growth suitability and quality suitability for medicinal plants, which was helpful to further research and practice of cultivation regionalization, wild resource monitoring and large-scale cultivation of traditional Chinese medicine plants.
Improved Electrostatic Optical System

NASA Technical Reports Server (NTRS)

Lewis, B. F.

1984-01-01

Device suitable for molecular epitaxial formation of semiconductor components. Improved electrostatic lens system uses cylindrical mirror as central element between two tubular lenses. Abberations introduced by mirror tend to cancel those introduced by tubular lenses. Result is order-of-magnitude improvement in chromatic or spherical compensation.
Determination of Reaction Stoichiometries by Flow Injection Analysis.

ERIC Educational Resources Information Center

Rios, Angel; And Others

1986-01-01

Describes a method of flow injection analysis intended for calculation of complex-formation and redox reaction stoichiometries based on a closed-loop configuration. The technique is suitable for use in undergraduate laboratories. Information is provided for equipment, materials, procedures, and sample results. (JM)
Preparation of water-soluble magnetic nanocrystals using aryl diazonium salt chemistry.

PubMed

Griffete, Nébéwia; Herbst, Frédéric; Pinson, Jean; Ammar, Souad; Mangeney, Claire

2011-02-16

A novel and facile methodology for the in situ surface functionalization of Fe(3)O(4) nanoparticles is proposed, based on the use of aryl diazonium salts chemistry. The grafting reaction involves the formation of diazoates in a basic medium. These species are unstable and dediazonize along a homolytic pathway to give aryl radicals which further react with the Fe(3)O(4) NPs during their formation and stop their growth. Advantages of the present approach rely not only on the simplicity, rapidity, and efficiency of the procedure but also on the formation of strong Fe(3)O(4)-aryl surface bonds, highly suitable for further applications.
48 CFR 44.402 - Policy requirements.

Code of Federal Regulations, 2010 CFR

2010-10-01

... simplified acquisition threshold, the contractor shall, to the maximum extent practicable, conduct market research to determine— (1) If commercial items or, to the extent commercial items suitable to meet the...
Dark soliton fiber lasers.

PubMed

Tang, Dingyuan; Guo, Jun; Song, Yufeng; Zhang, Han; Zhao, Luming; Shen, Deyuan

2014-08-11

Dark soliton formation and soliton dynamics in all-normal dispersion cavity fiber ring lasers without an anti-saturable absorber in cavity is studied both theoretically and numerically. It is shown that under suitable conditions the dark solitons formed could be described by the nonlinear Schrödinger equation. The dark soliton formation in an all-normal-dispersion cavity erbium-doped fiber ring laser without an anti-saturable absorber in cavity is first experimentally demonstrated. Individual dark solitons are experimentally identified. Excellent agreement between theory and experiment is observed.
The position of gas turbine power plants with respect to the emission of nitrogen oxides by fossil-fueled energy installations

NASA Technical Reports Server (NTRS)

Kaiser, E.

1977-01-01

The amount of nitrogen oxides introduced into the atmosphere by gas turbines is very significant in relation to the total amount of nitrogen oxide emissions produced by chemical installations and combustion engines. Turbine manufacturers are therefore working to develop combustion chambers with sufficiently low nitrogen oxide emission concentrations. Attention is given to aspects of nitrogen oxide formation in gas turbines, the parameters which determine this formation, and suitable approaches to reducing nitrogen oxide emissions.
High-performance parallel interface to synchronous optical network gateway

DOEpatents

St. John, Wallace B.; DuBois, David H.

1998-08-11

A digital system provides sending and receiving gateways for HIPPI interfaces. Electronic logic circuitry formats data signals and overhead signals in a data frame that is suitable for transmission over a connecting fiber optic link. Multiplexers route the data and overhead signals to a framer module. The framer module allocates the data and overhead signals to a plurality of 9-byte words that are arranged in a selected protocol. The formatted words are stored in a storage register for output through the gateway.
Active Management of Integrated Geothermal-CO2 Storage Reservoirs in Sedimentary Formations: Data used in Geosphere Journal Article

DOE Data Explorer

Thomas A. Buscheck

2015-06-01

This data submission is for Phase 2 of Active Management of Integrated Geothermal-CO2 Storage Reservoirs in Sedimentary Formations, which focuses on multi-fluid (CO2 and brine) geothermal energy production and diurnal bulk energy storage in geologic settings that are suitable for geologic CO2 storage. This data submission includes all data used in the Geosphere Journal article by Buscheck et al (2016). All assumptions are discussed in that article.
Pepper, chili (Capsicum annuum).

PubMed

Min, Jung; Shin, Sun Hee; Jeon, En Mi; Park, Jung Mi; Hyun, Ji Young; Harn, Chee Hark

2015-01-01

Pepper is a recalcitrant plant for Agrobacterium-mediated genetic transformation. Several obstacles to genetic transformation remain such as extremely low transformation rates; the choice of correct genotype is critical; and there is a high frequency of false positives due to direct shoot formation. Here, we report a useful protocol with a suitable selection method. The most important aspect of the pepper transformation protocol is selecting shoots growing from the callus, which is referred to as callus-mediated shoot formation. This protocol is a reproducible and reliable system for pepper transformation.
A novel assessment of the role of the methyl radical and water formation channel in the CH3OH + H reaction.

PubMed

Sanches-Neto, Flávio O; Coutinho, Nayara D; Carvalho-Silva, Valter H

2017-09-20

A number of experimental and theoretical papers accounted almost exclusively for two channels in the reaction of atomic hydrogen with methanol: H-abstraction from the methyl (R1) and hydroxyl (R2) functional groups. Recently, several astrochemical studies claimed the importance of another channel for this reaction, which is crucial for kinetic simulations related to the abundance of molecular constituents in planetary atmospheres: methyl radical and water formation (R3 channel). Here, motivated by the lack of and uncertainties about the experimental and theoretical kinetic rate constants for the third channel, we developed first-principles Car-Parrinello molecular dynamics thermalized at two significant temperatures - 300 and 2500 K. Furthermore, the kinetic rate constant of all three channels was calculated using a high-level deformed-transition state theory (d-TST) at a benchmark electronic structure level. d-TST is shown to be suitable for describing the overall rate constant for the CH 3 OH + H reaction (an archetype of the moderate tunnelling regime) with the precision required for practical applications. Considering the experimental ratios at 1000 K, k R1 /k R2 ≈ 0.84 and k R1 /k R3 ≈ 15-40, we provided a better estimate when compared with previous theoretical work: 7.47 and 637, respectively. The combination of these procedures explicitly demonstrates the role of the third channel in a significant range of temperatures and indicates its importance considering the thermodynamic control to estimate methyl radical and water formation. We expect that these results can help to shed new light on the fundamental kinetic rate equations for the CH 3 OH + H reaction.
Assessment "for" Learning and "for" Self-Regulation

ERIC Educational Resources Information Center

Lysaght, Zita

2015-01-01

Drawing on a research study of formative assessment practices in Irish schools, this paper traces the design, development and pilot of the Assessment for Learning Audit instrument (AfLAi)--a research tool for measuring teachers' understanding and deployment of formative teaching, learning and assessment practices. Underpinning the paper is an…
Deep Impact: How a Job-Embedded Formative Assessment Professional Development Model Affected Teacher Practice

ERIC Educational Resources Information Center

Stewart, Thomas A.; Houchens, Gary W.

2014-01-01

This study supports the work of Black and Wiliam (1998), who demonstrated that when teachers effectively utilize formative assessment strategies, student learning increases significantly. However, the researchers also found a "poverty of practice" among teachers, in that few fully understood how to implement classroom formative…
[Practical experience about the compatibility of PDF converter in ECG information system].

PubMed

Yang, Gang; Lu, Weishi; Zhou, Jiacheng

2009-11-01

To find a way to view ECG from different manufacturers in electrocardiogram information system. Different format ECG data were transmitted to ECG center by different ways. Corresponding analysis software was used to make the diagnosis reports in the center. Then we use PDF convert to change all ECG reports into PDF format. The electrocardiogram information system manage these PDF format ECG data for clinic user. The ECG reports form several major ECG manufacturers were transformed to PDF format successfully. In the electrocardiogram information system it is freely to view the ECG figure. PDF format ECG report is a practicable way to solve the compatibility problem in electrocardiogram information system.
Biodegradable polymer film as a source for formation of human fetal retinal pigment epithelium spheroids.

PubMed

Rezai, K A; Farrokh-Siar, L; Botz, M L; Godowski, K C; Swanbom, D D; Patel, S C; Ernest, J T

1999-05-01

To evaluate the attachment of human fetal rctinal pigment epithelial (HFRPE) cells to a biodegradable polymer film with subsequent formation of spheroids in vitro. Ten biodegradable polymer films with different compositions were examined for their physical properties and ease of manipulation under a dissecting microscope. The film with the most suitable handling characteristics was chosen, and a purely isolated sheet of HFRPE cells was attached to it. The purity of the cells was assessed by their pigmentation and expression of cytokeratin. Proliferation was assessed by incorporation of 5-bromo-2'-deoxyuridine (BrdtJ). Cellular structure was analyzed under light and electron microscopes, and the functional capability of the cells was evaluated by rod outer segment (ROS) phagocytosis. The polymer film with composition 50:50 poly (DL-lactide) (PLA)/poly (DL-lactide-co-glycolide) (PLG) with an inherent viscosity of 1.03 dl/g was found to be the most suitable for handling under the microscope. Sheets of HFRPE cells attached to the polymer films within 48 hours and began to form spheroids. All the isolated cells were pigmented and expressed cytokeratin. They possessed a cuboidal morphology, numerous apical microvilli, and no sign of dedifferentiation. HFRPE cells produced extracellular matrix (collagen filaments) on their basal side, filling the cavities of the polymer film. The cells subsequently proliferated, incorporated BrdU, migrated onto the culture plate to form monolayers, and phagocytized ROS. Biodegradable polymer films can be used as a scaffold for the adhesion of the HFRPE sheet and formation of spheroids. Spheroids represent a source of high density and well-differentiated HFRPE cells that are easy to transfer. Furthermore, the stricture of the membrane makes it suitable for additional applications.

Environmental Impact Assessment: Teaching the Principles and Practices by Means of a Role-Playing Case Study

ERIC Educational Resources Information Center

Crittenden, Barry D.; England, Richard

2005-01-01

The principles and practices of environmental impact assessment are best taught to chemical engineering undergraduate students by means of a role-playing case study. Many suitable examples are available from public sources. The planning appeal process has been selected so as to introduce an adversarial style involving cross-examination on…
Decolonisation, Globalisation: Language-in-Education Policy and Practice. New Perspectives on Language and Education

ERIC Educational Resources Information Center

Lin, Angel M. Y., Ed.; Martin, Peter W., Ed.

2005-01-01

This volume brings together scholars from around the world to juxtapose the voices of classroom participants alongside the voices of ruling elites with the aim of critically linking language policy issues with classroom practice in a range of contexts. The volume is suitable for postgraduate students, researchers and educators in a range of areas.…
Australian general practitioner attitudes to clinical practice guidelines and some implications for translating osteoarthritis care into practice.

PubMed

Basedow, Martin; Runciman, William B; Lipworth, Wendy; Esterman, Adrian

2016-11-01

Clinical practice guidelines (CPGs) have been shown to improve processes of care and health outcomes, but there is often a discrepancy between recommendations for care and clinical practice. This study sought to explore general practitioner (GP) attitudes towards CPGs, in general and specifically for osteoarthritis (OA), with the implications for translating OA care into practice. A self-administered questionnaire was conducted in January 2013 with a sample of 228 GPs in New South Wales and South Australia. Seventy-nine GPs returned questionnaires (response rate 35%). Nearly all GPs considered that CPGs support decision-making in practice (94%) and medical education (92%). Very few respondents regarded CPGs as a threat to clinical autonomy, and most recognised that individual patient circumstances must be taken into account. Shorter CPG formats were preferred over longer and more comprehensive formats, with preferences being evenly divided among respondents for short, 2-3-page summaries, flowcharts or algorithms and single page checklists. GPs considered accessibility to CPGs to be important, and electronic formats were popular. Familiarity and use of The Royal Australian College of General Practitioners OA Guideline was poor, with most respondents either not aware of it (30%; 95% confidence interval (CI) 27 - 41%), had never used it (19%; 95% CI 12 - 29%) or rarely used it (34%; 95% CI 25-45%). If CPGs are to assist with the translation of evidence into practice, they must be easily accessible and in a format that encourages use.
Astronaut training manual

NASA Technical Reports Server (NTRS)

Coleman, E. A.

1980-01-01

Scientific information from previous space flights, space medicine, exercise physiology, and sports medicine was used to prepare a physical fitness manual suitable for use by members of the NASA astronaut population. A variety of scientifically valid exercise programs and activities suitable for the development of physical fitness are provided. Programs, activities, and supportive scientific data are presented in a concise, easy to read format so as to permit the user to select his or her mode of training with confidence and devote time previously spent experimenting with training routines to preparation for space flight. The programs and activities included were tested and shown to be effective and enjoyable.
Egging Them On in Chemistry.

ERIC Educational Resources Information Center

Shannon, Dan C.

1984-01-01

Discusses a laboratory exercise (suitable for the day before spring vacation) involving use of a hard-boiled egg to stimulate student responses to questions on the effect of adding salt to the water, formation of iron sulfide, ease of peeling, and gas laws. Additional experiments are included. (BC)
Preliminary evaluation of a self-directed video-based 1-2-3 Magic parenting program: a randomized controlled trial.

PubMed

Porzig-Drummond, Renata; Stevenson, Richard J; Stevenson, Caroline

2015-03-01

The current study examined the effectiveness of a self-directed video-based format of the 1-2-3 Magic parenting program in reducing dysfunctional parenting and child problem behaviors. Eighty-four parents of children aged 2-10 were randomly assigned to either the intervention group (n = 43) or the waitlist control group (n = 41). Participants in the intervention group reported significantly less problem behaviors for their children, and significantly less dysfunctional parenting, at post-intervention when compared to the control group. The results were maintained at 6-month follow-up. There was no significant change on measures of parental adjustment for either group. The current results provide preliminary support for the conclusion that the video-based self-directed format of the 1-2-3 Magic parenting program is suitable as an entry-level intervention in a multi-level intervention model and is suitable for inclusion in a population approach to parenting program delivery. Copyright © 2015 Elsevier Ltd. All rights reserved.
Origins of Folding Instabilities on Polycrystalline Metal Surfaces

NASA Astrophysics Data System (ADS)

Beckmann, N.; Romero, P. A.; Linsler, D.; Dienwiebel, M.; Stolz, U.; Moseler, M.; Gumbsch, P.

2014-12-01

Wear and removal of material from polycrystalline metal surfaces is inherently connected to plastic flow. Here, plowing-induced unconstrained surface plastic flow on a nanocrystalline copper surface has been studied by massive molecular dynamics simulations and atomic force microscopy scratch experiments. In agreement with experimental findings, bulges in front of a model asperity develop into vortexlike fold patterns that mark the disruption of laminar flow. We identify dislocation-mediated plastic flow in grains with suitably oriented slip systems as the basic mechanism of bulging and fold formation. The observed folding can be fundamentally explained by the inhomogeneity of plasticity on polycrystalline surfaces which favors bulge formation on grains with suitably oriented slip system. This process is clearly distinct from Kelvin-Helmholtz instabilities in fluids, which have been previously suggested to resemble the formed surface fold patterns. The generated prow grows into a rough chip with stratified lamellae that are identified as the precursors of wear debris. Our findings demonstrate the importance of surface texture and grain structure engineering to achieve ultralow wear in metals.
Maternal care through mainstreaming Ayurvedic approach

PubMed Central

Jayashree, K.S.

2008-01-01

Reviving and re establishing the practices which were prevalent in India along with some orientation towards Ayurvedic approaches shall be a suitable answer to the burning issues of women’ health. Mainstreaming the Ayurvedic practices in women health care appears to be the most effective remedial measure to lower MMR and promote maternal health. The present paper is a narrative of exemplary practices in the management of the most important phases like puberty, pregnancy and post natal care in accordance with Ayurveda PMID:22557299
Generation of Hot Water from Hot-Dry for Heavy-Oil Recovery in Northern Alberta, Canada

NASA Astrophysics Data System (ADS)

Pathak, V.; Babadagli, T.; Majorowicz, J. A.; Unsworth, M. J.

2011-12-01

The focus of prior applications of hot-dry-rock (HDR) technology was mostly aimed at generating electricity. In northern Alberta, the thermal gradient is low and, therefore, this technology is not suitable for electricity generation. On the other hand, the cost of steam and hot water, and environmental impacts, are becoming critical issues in heavy-oil and bitumen recovery in Alberta. Surface generation of steam or hot-water accounts for six percent of Canada's natural gas consumption and about 50 million tons of CO2 emission. Lowered cost and environmental impacts are critical in the widespread use of steam (for in-situ recovery) and hot-water (for surface extraction of bitumen) in this region. This paper provides an extensive analysis of hot-water generation to be used in heavy-oil/bitumen recovery. We tested different modeling approaches used to determine the amount of energy produced during HDR by history matching to example field data. The most suitable numerical and analytical models were used to apply the data obtained from different regions containing heavy-oil/bitumen deposits in northern Alberta. The heat generation capacity of different regions was determined and the use of this energy (in the form of hot-water) for surface extraction processes was evaluated. Original temperature gradients were applied as well as realistic basement formation characteristics through an extensive hydro thermal analysis in the region including an experimental well drilled to the depth of 2,500m. Existing natural fractures and possible hydraulic fracturing scenarios were evaluated from the heat generation capacity and the economics points of view. The main problem was modeling difficulties, especially determination and representation of fracture network characteristics. A sensitivity analysis was performed for the selected high temperature gradient regions in Alberta. In this practice, the characteristics of hydraulic fractures, injection rate, depth, the distance between injection and production wells and formation thickness were used as variables and an optimization study was carried out based on these variables. The results showed that the hot water (50 C at surface) needed in Fort McMurray for extraction could be obtained at lower costs than the generation of it using natural gas.
Implementing Summative Assessment with a Formative Flavour: A Case Study in a Large Class

ERIC Educational Resources Information Center

Broadbent, Jaclyn; Panadero, Ernesto; Boud, David

2018-01-01

Teaching a large class can present real challenges in design, management and standardisation of assessment practices. One of the main dilemmas for university teachers is how to implement effective formative assessment practices with accompanying high-quality feedback consistently over time with large classroom groups. This article reports on how…
Practical Recommendations for University Graduates' Readiness Formation to Occupational Mobility

ERIC Educational Resources Information Center

Yakhina, Zulfiya Sh.; Yakovlev, Sergey A.; Kozhevnikova, Natalya V.; Nuretdinova, Yuliya V.; Solovyeva, Natalya A.

2016-01-01

The research urgency is caused by the development of economic integration and demand for professionals able to adapt to constantly changing working conditions. The purpose of the paper is to develop practical recommendations on formation of University graduates' readiness to occupational mobility. A leading approach to the study is the…
Learning for Oneself: A Confucian-Inspired Case for Moral Formation in Ethics Pedagogy

ERIC Educational Resources Information Center

Duperon, Matthew

2018-01-01

This article explores the disconnection between ethical theory and ethical practice in ethics courses at secular U.S. colleges and universities. In such contexts academic ethics focuses almost exclusively on "ethical reasoning" and leaves the business of practical moral formation of students in the realm of "student life." I…
3 Reasons Savvy District Leaders Prioritize Formative Assessment

ERIC Educational Resources Information Center

Northwest Evaluation Association, 2016

2016-01-01

Teachers and leaders who say "yes!" to classroom formative assessment practice find it's a fast, proven, sustainable way to collect and act on key information while engaging ALL students. It's also an ideal complement to MAP and other data. Curious about which research-based practices get the most raves? Then check out the first article…
Faculty Perceptions of Formative Assessment and Implementation Practices in Preclinical Medical Edcuation: A Q Method Study

ERIC Educational Resources Information Center

Close, Brandy

2017-01-01

This study describes faculty perceptions of formative assessment and the influence their perceptions have on implementation practices. Assessment is often misunderstood and too often becomes an afterthought in the teaching process. Measuring curricular success by overall student outcomes means instructional and assessment methods have a…
Social Processes of Health and Physical Education Teachers' Identity Formation: Reproducing and Changing Culture

ERIC Educational Resources Information Center

Sirna, K.; Tinning, R.; Rossi, T.

2010-01-01

This paper examines Initial Teacher Education students' experiences of participation in health and physical education (HPE) subject department offices and the impact on their understandings and identity formation. Pierre Bourdieu's concepts of habitus, field, and practice along with Wenger's communities of practice form the theoretical frame used…
Where Are We Now? Learning Progressions and Formative Assessment

ERIC Educational Resources Information Center

Gotwals, Amelia Wenk

2018-01-01

In this commentary, I consider the three empirical studies in this special issue based on two main aspects: (a) the nature of the learning progressions and (b) what formative assessment practice(s) were investigated. Specifically, I describe differences among the learning progressions in terms of scope and grain size. I also identify three…
Creating a Structured Practice Space with Online Mini-Speeches

ERIC Educational Resources Information Center

Gerbensky-Kerber, Anne

2017-01-01

Courses: This semester-long assignment series was developed for an online introductory public speaking class, but it has also been used successfully in a hybrid (combination of online/face-to-face meetings) format. Objectives: Students will practice delivering speeches in an online format by applying key concepts from course materials to personal…
Exploration of the region near the sun-earth collinear libration points for the control of large formations

NASA Astrophysics Data System (ADS)

Heritier, Aurelie

Spacecraft formations possess many applications in the future of space exploration. During the last decade, due to the detection of a large number of extrasolar planets, new studies on formation flying in multi-body regimes have emerged to support searches for Earth-like planets in other solar systems. The L2 Sun-Earth libration point region has been a popular destination in creating an architecture for astronomical missions. It is a relatively cold environment, far from the disturbances of the Sun and, therefore, ideal for astronomical instruments. However, controlling multiple spacecraft in a multi-body environment is challenging and a good understanding of the natural dynamics in this regime is essential. The current investigation explores the dynamical environment near the L2 Sun-Earth libration point to aid in the control of formations of spacecraft. By exploiting the natural dynamics in the circular restricted three-body model (CR3BP), natural regions are determined that are particularly suitable for maintaining formations of spacecraft. The natural dynamics at small distances from a given reference trajectory are initially investigated for the placement of small formations of spacecraft. Some regions with low relative drift represent suitable locations to maintain small formations and are derived analytically using variational equations. Spacecraft located in such regions avoid large variations in their mutual distances while maintaining the orientation of the formation. These regions represent quadric surfaces, and the type of quadric surfaces, either ellipsoids or elliptic cylinders, depends on the eigenstructure reflecting the phase space along the given reference trajectory. The natural flow at large distances from a given reference trajectory is explored next to characterize regions that are suitable to maintain large formations, i.e., when the mutual distances between the spacecraft reaches tens of thousands of kilometers. Spheres of points at various locations along the reference orbit are constructed to classify the space, and regions of low natural drift on the spheres are numerically identified when the distance between two vehicles is large. These low drift regions are examined in detail, and a correspondance with the quadric surfaces that are derived for small formations is established. In particular, the orientation of these low drift zones along a given reference orbit are investigated as some parameters vary, such as the size of the formation as well as the reference orbit. Using the low natural drift regions, control strategies are then developed for large formations. Traditional controllers, such as impulsive maneuvers and linear quadratic regulators (LQR), are employed to quantify the level of control that is required to maintain large formations along specific directions in the CR3BP. Designs of new controllers are also investigated to produce some set of desired relative motions between two spacecraft placed at large mutual distances. In a potential formation option investigated in this analysis, a deputy vehicle maintains a fixed circular motion in a plane relative to a chief spacecraft moving along its reference trajectory. Finally, the effectiveness of using the low natural drift regions as derived for large formations is tested for the New Worlds Observer mission concept. This scenario involves a large telescope-occulter formation for star observations, to detect and characterize habitable terrestrial exoplanets. The low drift zones are employed to reduce the control effort to maintain a large telescope-occulter formation during the observation of inertially-fixed target stars. In particular, the occulter is maintained via a linear quadratic regulator during star observations. Given a set of inertially-fixed target stars, an automatic star sequence design process is proposed with observation and reconfiguration phases using the low drift regions. This design creates star sequences that lead to relatively small overall maneuver costs for this particular mission concept.
Utilising feedback from patients and their families as a learning strategy in a Foundation Degree in palliative and supportive care: a qualitative study.

PubMed

Pal, Laura M; Dixon, Rachael E; Faull, Christina M

2014-03-01

In the UK, support workers provide much of the care that palliative care patients receive, and a novel Foundation Degree was developed to enhance their skills. Feedback on performance is a recognised educational tool that reinforces good practice, and gives insight into areas of weakness, but its use with this workforce has not been described. The aim of this qualitative study is to explore tutor and support workers' experiences of seeking and receiving feedback from patients and their families; focusing on its values and challenges. Support workers enrolled onto the Foundation Degree in Palliative and Supportive Care, were asked to seek feedback from patients and/or their families about the care that they provided using a 'My Experience' questionnaire. Forms were returned anonymously to the course tutor who discussed results with the student as a formative education strategy. The students' experience of this was explored in focus group interviews at three time points. Two tutors' experiences were similarly explored. Results were analysed thematically. Students enjoyed receiving feedback. Positive feedback helped to increase confidence, and negative feedback allowed students to look critically at their practice and identify areas of weakness. Some experienced challenges in approaching patients/families due to having a small number of suitable patients/families; a reluctance to burden patients; high patient turnover and brevity of care relationships. The tutors enjoyed delivering feedback, recognising its benefits as an educational strategy. Some concern was expressed about how to balance delivering negative feedback while continuing to provide tutorial support throughout the Foundation Degree. User feedback is considered a key formative educational strategy. Its use in health and social support workers is not established. The experiences of students and tutors in this Foundation Degree demonstrate some of the benefits and challenges of this as an educational strategy. Copyright © 2013 Elsevier Ltd. All rights reserved.
78 FR 67076 - Practices and Procedures

Federal Register 2010, 2011, 2012, 2013, 2014

2013-11-08

... as an attachment in any common electronic format, including word processing applications, HTML and PDF. If possible, commenters are asked to use a text format and not an image format for attachments...

Quantifying the proportion of general practice and low-acuity patients in the emergency department.

PubMed

Nagree, Yusuf; Camarda, Vanessa J; Fatovich, Daniel M; Cameron, Peter A; Dey, Ian; Gosbell, Andrew D; McCarthy, Sally M; Mountain, David

2013-06-17

To accurately estimate the proportion of patients presenting to the emergency department (ED) who may have been suitable to be seen in general practice. Using data sourced from the Emergency Department Information Systems for the calendar 2013s 2009 to 2011 at three major tertiary hospitals in Perth, Western Australia, we compared four methods for calculating general practice-type patients. These were the validated Sprivulis method, the widely used Australasian College for Emergency Medicine method, a discharge diagnosis method developed by the Tasmanian Department of Human and Health Services, and the Australian Institute of Health and Welfare (AIHW) method. General practice-type patient attendances to EDs, estimated using the four methods. All methods except the AIHW method showed that 10%-12% of patients attending tertiary EDs in Perth may have been suitable for general practice. These attendances comprised 3%-5% of total ED length of stay. The AIHW method produced different results (general practice-type patients accounted for about 25% of attendances, comprising 10%-11% of total ED length of stay). General practice-type patient attendances were not evenly distributed across the week, with proportionally more patients presenting during weekday daytime (08:00-17:00) and proportionally fewer overnight (00:00-08:00). This suggests that it is not a lack of general practitioners that drives patients to the ED, as weekday working hours are the time of greatest GP availability. The estimated proportion of general practice-type patients attending the EDs of Perth's major hospitals is 10%-12%, and this accounts for < 5% of the total ED length of stay. The AIHW methodology overestimates the actual proportion of general practice-type patient attendances.
7 CFR 205.238 - Livestock health care practice standard.

Code of Federal Regulations, 2014 CFR

2014-01-01

... diseases and parasites; (4) Provision of conditions which allow for exercise, freedom of movement, and... regard to suitability for site-specific conditions and resistance to prevalent diseases and parasites; (2...
7 CFR 205.238 - Livestock health care practice standard.

Code of Federal Regulations, 2013 CFR

2013-01-01

... diseases and parasites; (4) Provision of conditions which allow for exercise, freedom of movement, and... regard to suitability for site-specific conditions and resistance to prevalent diseases and parasites; (2...
7 CFR 1955.63 - Suitability determination.

Code of Federal Regulations, 2010 CFR

2010-01-01

... found in § 1955.53. (b) Grouping and subdividing farm properties. To the maximum extent practicable, the... which is obsolete due to location, design, construction or age. (5) A dwelling which requires major...
A Molecular Copper Catalyst for Hydrogenation of CO2 to Formate

DOE Office of Scientific and Technical Information (OSTI.GOV)

Zall, Christopher M.; Linehan, John C.; Appel, Aaron M.

2015-09-04

There is widespread interest in the hydrogenation of CO2 to energy-rich products such as formate. However, first-row transition metal complexes that catalyze the hydrogenation of CO2 to formate remain rare. Copper phosphine complexes are widely used in the reduction of organic substrates but have not previously been used as catalysts for the conversion of H2 and CO2 to formate. Here we demonstrate that the triphosphine-ligated copper(I) complex LCu(MeCN)PF6 is an active catalyst for CO2 hydrogenation in the presence of a suitable base. Screening of bases and studies of catalytic reactions by in operando spectroscopy revealed important and unusual roles formore » the base in promoting H2 activation and turnover.« less
Accurate Determination of Coulombic Efficiency for Lithium Metal Anodes and Lithium Metal Batteries

DOE Office of Scientific and Technical Information (OSTI.GOV)

Adams, Brian D.; Zheng, Jianming; Ren, Xiaodi

Lithium (Li) metal is an ideal anode material for high energy density batteries. However, its low Coulombic efficiency (CE) and formation of dendrites during the plating and stripping processes has hindered its applications in rechargeable Li metal batteries. The accurate measurement of Li CE is a critical factor to predict the cycle life of Li metal batteries, but the measurement of Li CE is affected by various factors that often leads to conflicting values reported in the literature. Here, we investigate various factors that affect the measurement of Li CE and propose a more accurate method of determining Li CE.more » It was also found that the capacity used for cycling greatly affects the stabilization cycles and the average CE. A higher cycling capacity leads to a shorter number of stabilization cycles and higher average CE. With a proper high-concentration ether-based electrolyte, Li metal can be cycled with a high average CE of 99.5 % for over 100 cycles at a high capacity of 6 mAh cm-2 suitable for practical applications.« less
New perspectives on potential hydrogen storage materials using high pressure.

PubMed

Song, Yang

2013-09-21

In addressing the global demand for clean and renewable energy, hydrogen stands out as the most suitable candidate for many fuel applications that require practical and efficient storage of hydrogen. Supplementary to the traditional hydrogen storage methods and materials, the high-pressure technique has emerged as a novel and unique approach to developing new potential hydrogen storage materials. Static compression of materials may result in significant changes in the structures, properties and performance that are important for hydrogen storage applications, and often lead to the formation of unprecedented phases or complexes that have profound implications for hydrogen storage. In this perspective article, 22 types of representative potential hydrogen storage materials that belong to four major classes--simple hydride, complex hydride, chemical hydride and hydrogen containing materials--were reviewed. In particular, their structures, stabilities, and pressure-induced transformations, which were reported in recent experimental works together with supporting theoretical studies, were provided. The important contextual aspects pertinent to hydrogen storage associated with novel structures and transitions were discussed. Finally, the summary of the recent advances reviewed and the insight into the future research in this direction were given.
A half millimeter thick coplanar flexible battery with wireless recharging capability.

PubMed

Kim, Joo-Seong; Ko, Dongah; Yoo, Dong-Joo; Jung, Dae Soo; Yavuz, Cafer T; Kim, Nam-In; Choi, In-Suk; Song, Jae Yong; Choi, Jang Wook

2015-04-08

Most of the existing flexible lithium ion batteries (LIBs) adopt the conventional cofacial cell configuration where anode, separator, and cathode are sequentially stacked and so have difficulty in the integration with emerging thin LIB applications, such as smart cards and medical patches. In order to overcome this shortcoming, herein, we report a coplanar cell structure in which anodes and cathodes are interdigitatedly positioned on the same plane. The coplanar electrode design brings advantages of enhanced bending tolerance and capability of increasing the cell voltage by in series-connection of multiple single-cells in addition to its suitability for the thickness reduction. On the basis of these structural benefits, we develop a coplanar flexible LIB that delivers 7.4 V with an entire cell thickness below 0.5 mm while preserving stable electrochemical performance throughout 5000 (un)bending cycles (bending radius = 5 mm). Also, even the pouch case serves as barriers between anodes and cathodes to prevent Li dendrite growth and short-circuit formation while saving the thickness. Furthermore, for convenient practical use wireless charging via inductive electromagnetic energy transfer and solar cell integration is demonstrated.
Robotic implementation of assays: tissue-nonspecific alkaline phosphatase (TNAP) case study.

PubMed

Chung, Thomas D Y

2013-01-01

Laboratory automation and robotics have "industrialized" the execution and completion of large-scale, enabling high-capacity and high-throughput (100 K-1 MM/day) screening (HTS) campaigns of large "libraries" of compounds (>200 K-2 MM) to complete in a few days or weeks. Critical to the success these HTS campaigns is the ability of a competent assay development team to convert a validated research-grade laboratory "benchtop" assay suitable for manual or semi-automated operations on a few hundreds of compounds into a robust miniaturized (384- or 1,536-well format), well-engineered, scalable, industrialized assay that can be seamlessly implemented on a fully automated, fully integrated robotic screening platform for cost-effective screening of hundreds of thousands of compounds. Here, we provide a review of the theoretical guiding principles and practical considerations necessary to reduce often complex research biology into a "lean manufacturing" engineering endeavor comprising adaption, automation, and implementation of HTS. Furthermore we provide a detailed example specifically for a cell-free in vitro biochemical, enzymatic phosphatase assay for tissue-nonspecific alkaline phosphatase that illustrates these principles and considerations.
Method for the recovery of silver from waste photographic fixer solutions

DOEpatents

Posey, F.A.; Palko, A.A.

The method of the present invention is directed to the recovery of silver from spent photographic fixer solutions and for providing an effluent essentially silver-free that is suitable for discharge into commercial sewage systems. The present method involves the steps of introducing the spent photographic fixer solution into an alkaline hypochlorite solution. The oxidizing conditions of the alkaline hypochlorite solution are maintained during the addition of the fixer solution so that the silver ion complexing agents of thiosulfate and sulfite ions are effectively destroyed. Hydrazine monohydrate is then added to the oxidizing solution to form a reducing solution to effect the formation of a precipitate of silver which can be readily removed by filtration of decanting. Experimental tests indicate that greater than 99.99% of the original silver in the spent photographic fixer can be efficiently removed by practicing the present method. Also, the chemical and biological oxygen demand of the remaining effluent is significantly reduced so as to permit the discharge thereof into sewage systems at levels in compliance with federal and state environmental standards.
Method for the recovery of silver from waste photographic fixer solutions

DOEpatents

Posey, Franz A.; Palko, Aloysius A.

1984-01-01

The method of the present invention is directed to the recovery of silver from spent photographic fixer solutions and for providing an effluent essentially silver-free that is suitable for discharge into commercial sewage systems. The present method involves the steps of introducing the spent photographic fixer solution into an alkaline hypochlorite solution. The oxidizing conditions of the alkaline hypochlorite solution are maintained during the addition of the fixer solution so that the silver ion complexing agents of thiosulfate and sulfite ions are effectively destroyed. Hydrazine monohydrate is then added to the oxidizing solution to form a reducing solution to effect the formation of a precipitate of silver which can be readily removed by filtration or decanting. Experimental tests indicate that greater than 99.99% of the original silver in the spent photographic fixer can be efficiently removed by practicing the present method. Also, the chemical and biological oxygen demand of the remaining effluent is significantly reduced so as to permit the discharge thereof into sewage systems at levels in compliance with federal and state environmental standards.
Using RDF to Model the Structure and Process of Systems

NASA Astrophysics Data System (ADS)

Rodriguez, Marko A.; Watkins, Jennifer H.; Bollen, Johan; Gershenson, Carlos

Many systems can be described in terms of networks of discrete elements and their various relationships to one another. A semantic network, or multi-relational network, is a directed labeled graph consisting of a heterogeneous set of entities connected by a heterogeneous set of relationships. Semantic networks serve as a promising general-purpose modeling substrate for complex systems. Various standardized formats and tools are now available to support practical, large-scale semantic network models. First, the Resource Description Framework (RDF) offers a standardized semantic network data model that can be further formalized by ontology modeling languages such as RDF Schema (RDFS) and the Web Ontology Language (OWL). Second, the recent introduction of highly performant triple-stores (i.e. semantic network databases) allows semantic network models on the order of 109 edges to be efficiently stored and manipulated. RDF and its related technologies are currently used extensively in the domains of computer science, digital library science, and the biological sciences. This article will provide an introduction to RDF/RDFS/OWL and an examination of its suitability to model discrete element complex systems.
Design of molecular imprinted polymers compatible with aqueous environment.

PubMed

Piletska, Elena V; Guerreiro, Antonio R; Romero-Guerra, Maria; Chianella, Iva; Turner, Anthony P F; Piletsky, Sergey A

2008-01-21

The main problem of poor water compatibility of molecularly imprinted polymers (MIPs) was addressed in examples describing design of synthetic receptors with high affinity for drugs of abuse. An extensive potentiometric titration of 10 popular functional monomers and corresponding imprinted and blank polymers was conducted in order to evaluate the subtleties of functional groups ionisation under aqueous conditions. It was found that polymers prepared using 2-trifluoromethacrylic acid (TFMAA) in combination with toluene as porogen possess superior properties which make them suitable for effective template recognition in water. The potential impact of phase separation during polymerisation on formation of high quality imprints has been discussed. Three drugs of abuse such as cocaine, deoxyephedrine and methadone were used as template models in polymer preparation for the practical validation of obtained results. The polymer testing showed that synthesized molecularly imprinted polymers have high affinity and selectivity for corresponding templates in aqueous environment, with imprinting factors of 2.6 for cocaine and 1.4 for methadone and deoxyephedrine. Corresponding blank polymers were unable to differentiate between analytes, suggesting that imprinting phenomenon was responsible for the recognition properties.
Formative Assessment: Policy, Perspectives and Practice

ERIC Educational Resources Information Center

Clark, Ian

2011-01-01

Proponents of formative assessment (FA) assert that students develop a deeper understanding of their learning when the essential components of formative feedback and cultural responsiveness are effectively incorporated as central features of the formative assessment process. Even with growing international agreement among the research community…
Economic prescribing of corticosteroid nasal sprays in Germany: comparison of mometasone and budesonide nasal sprays on the basis of the DDD, the PDD and reference prices.

PubMed

Becker, Beril; Kruppert, Silvia; Kostev, Karel

2013-01-01

According to the German Social Security Code (SGB V), drugs should be prescribed on a cost-effective basis. An attempt is made to achieve this in Germany with the help of the DDD system and reference prices. Taking the example of the most frequently prescribed corticosteroid nasal sprays containing the active substances budesonide (BNS) or mometasone (MNS), we will show here that the DDD system is not necessarily suitable for tapping economic reserves. Despite the pharmacologic differences between the two substances, a uniformly defined daily dose (DDD) is assumed for both. Moreover, since 2006 they have formed a reference-price group of nasally administered medication with other active substances. Products were compared with regard to potential differences in patient populations and resulting treatment costs. The extent to which the two instruments are suitable for tapping economic reserves were estimated. We analyzed longitudinal diagnostic and prescription data in the IMS® Disease Analyzer Database from the period 2006 to July 2010. In total we analyzed data from 16,163 MNS and 4,218 BNS patients from GP practices plus 11,103 MNS and 2,521 BNS patients from ENT practices. The average quantity prescribed per patient differed in favor of MNS by -111.5 (for first prescriptions) to -260.1 puffs (after 730 days) in GP practices and by -137.3 to -488.3 puffs in ENT practices (p < 0.001). The mean calculated treatment cost per year from the point of view of the statutory health insurer was 20.40 € (GP practices) and 30.50 € (ENT practices) for MNS compared to 22.40 € (GP practices) and 32.10 € (ENT practices) for BNS. Based on the price level after the 2011 referenceprice adjustment, the treatment costs are 16.40 € (GP practices) and 24.20 € (ENT practices) for MNS versus 21.20 € (GP practices) and 32.30 € (ENT practices) for BNS. The volumes of MNS actually prescribed are significantly lower than those of BNS in the compared patient populations. Based on the actual consumption of the substances, there is no treatment-cost advantage for BNS in comparison to MNS from the statutory health insurer's point of view. By contrast, the reference-price adjustment results in a greater reduction of treatment costs for mometasone, so that in this case the statutory health insurer is able to tap economic reserves. Both the comparative parameters used for calculating the reference price and the DDD system are only conditionally suitable for tapping economic reserves for drugs.
An Approach to Mitigate Particle Formation on the Dilution of a Monoclonal Antibody Drug Product in an IV Administration Fluid.

PubMed

Zheng, Songyan; Adams, Monica; Mantri, Rao V

2016-03-01

To support dose reduction, low dose of a monoclonal antibody (mAb) was required to be administered via IV infusion at a concentration of 0.1 mg/mL. To achieve the target protein concentration, the infusion solution was prepared by diluting the drug product containing 10-mg/mL mAb with normal saline, a 0.9% sodium chloride injection solution. However, particles were observed in the diluted solution. Particle formation must be avoided to administer the low dose using the existing drug product. To mitigate the particle formation, an unconventional compounding approach was used. With this approach, a stabilizing vehicle containing polysorbate-80 was added to saline before drug-product dilution to maintain suitable surfactant level to prevent precipitation of the mAb. In this way, use of the stabilizing vehicle to support low doses ensured suitable quality across a wider range of mAb concentrations, thereby allowing additional flexibility to the clinical trial. Such an approach may be useful for broader application in early-stage clinical trials where there is an uncertainty regarding doses or the need to revise to lower doses based on clinical observations or other drivers. Copyright © 2016. Published by Elsevier Inc.
Optimization of embryo culture conditions for increasing efficiency of cloning in buffalo (Bubalus bubalis) and generation of transgenic embryos via cloning.

PubMed

Wadhwa, Neerja; Kunj, Neetu; Tiwari, Shuchita; Saraiya, Megha; Majumdar, Subeer S

2009-09-01

Cloning in bovine species is marred by low efficiency of blastocyst formation. Any increase in the efficiency of blastocyst formation upon nuclear transfer will greatly enhance the efficiency of cloning. In the present study, the effect of various media, protein sources, and growth factors on the development of cloned buffalo embryos was evaluated. Among various combinations tested, culture of cloned embryos in TCM-199 media on the feeder layer of Buffalo Oviductal Epithelial Cells (BOEC) in the presence of bovine serum albumin-free fatty acid (BSA-FFA) and leukemia inhibitory factor (LIF) provided most suitable environment for efficient development of cloned blastocysts. Under these conditions, we achieved a blastocyst formation rate of 43%, which is better than those reported previously. Because preimplantation embryonic development, in vivo, occurs in an environment of oviductal cells, the blastocysts generated by this method may presumably be more suitable for implantation and further development. Additionally, we generated green blastocysts from enucleated oocytes by transfer of nuclei from cells transfected with EGFP transgene, showing possibility of transgenesis via cloning in this species. To our knowledge, this is the first report regarding the production of transgenic cloned buffalo embryos and their developmental competence with respect to various media, cocultures, and supplements.
The Lifespan Self-Esteem Scale: Initial Validation of a New Measure of Global Self-Esteem.

PubMed

Harris, Michelle A; Donnellan, M Brent; Trzesniewski, Kali H

2018-01-01

This article introduces the Lifespan Self-Esteem Scale (LSE), a short measure of global self-esteem suitable for populations drawn from across the lifespan. Many existing measures of global self-esteem cannot be used across multiple developmental periods due to changes in item content, response formats, and other scale characteristics. This creates a need for a new lifespan scale so that changes in global self-esteem over time can be studied without confounding maturational changes with alterations in the measure. The LSE is a 4-item measure with a 5-point response format using items inspired by established self-esteem scales. The scale is essentially unidimensional and internally consistent, and it converges with existing self-esteem measures across ages 5 to 93 (N = 2,714). Thus, the LSE appears to be a useful measure of global self-esteem suitable for use across the lifespan as well as contexts where a short measure is desirable, such as populations with short attention spans or large projects assessing multiple constructs. Moreover, the LSE is one of the first global self-esteem scales to be validated for children younger than age 8, which provides the opportunity to broaden the field to include research on early formation and development of global self-esteem, an area that has previously been limited.
Highly Conductive Thin Uniform Gold-Coated DNA Nanowires.

PubMed

Stern, Avigail; Eidelshtein, Gennady; Zhuravel, Roman; Livshits, Gideon I; Rotem, Dvir; Kotlyar, Alexander; Porath, Danny

2018-06-01

Over the past decades, DNA, the carrier of genetic information, has been used by researchers as a structural template material. Watson-Crick base pairing enables the formation of complex 2D and 3D structures from DNA through self-assembly. Various methods have been developed to functionalize these structures for numerous utilities. Metallization of DNA has attracted much attention as a means of forming conductive nanostructures. Nevertheless, most of the metallized DNA wires reported so far suffer from irregularity and lack of end-to-end electrical connectivity. An effective technique for formation of thin gold-coated DNA wires that overcomes these drawbacks is developed and presented here. A conductive atomic force microscopy setup, which is suitable for measuring tens to thousands of nanometer long molecules and wires, is used to characterize these DNA-based nanowires. The wires reported here are the narrowest gold-coated DNA wires that display long-range conductivity. The measurements presented show that the conductivity is limited by defects, and that thicker gold coating reduces the number of defects and increases the conductive length. This preparation method enables the formation of molecular wires with dimensions and uniformity that are much more suitable for DNA-based molecular electronics. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Tactics for Improving Parenting Skills (TIPS).

ERIC Educational Resources Information Center

Algozzine, Bob, Ed.; Ysseldyke, Jim, Ed.

This manual presents 99 one-sheet informational brochures designed to improve parenting skills. Each brochure is in a format suitable for duplicating, folding, and distributing. Each parenting "tactic" offers references to related brochures. Tactics are grouped under the following broad areas: (1) home/family involvement (e.g., accepting "The…

Objective and Subjective Evaluation of Computer-based Tutorial Teaching in Veterinary Pathology.

ERIC Educational Resources Information Center

Brown, Peter

2001-01-01

Describes the results of the use of computer-based tutorials to teach the pathology of the cardiovascular system in a veterinary school in the United Kingdom. Concludes that the combined worksheet and computer based learning format is suitable for teaching veterinary pathology. (LRW)
Demonstrations at School Level of the Effects of IAA

ERIC Educational Resources Information Center

Falk, Peter

1973-01-01

Describes demonstrations suitable for secondary school biology classes relating to the effects of the hormone IAA on plant growth. Demonstrations illustrate how hormone treatments affect stem elongation, callus formation, inhibition of axillary buds, stimulation of secondary growth and initiation of adventitious root development, root elongation,…
Videodiscs in Schools: Selecting Essential Players and Videodiscs.

ERIC Educational Resources Information Center

Bennett, Priscilla

1995-01-01

Discusses the use of videodiscs in schools and suggests criteria for the selection of videodiscs and videodisc players. Topics include different videodisc formats, including CLV (constant linear velocity) and CAV (constant angular velocity); mapping; repurposing; content and age suitability; documentation; vendors; and Level I and Level II…
Renewable Energy Alternatives in Maryland.

ERIC Educational Resources Information Center

Welsh, Greg E.; McClellan, Deborah A. S.

This handbook discusses the renewable energy resources suitable for use in Maryland. It follows a question and answer format with sections about the following alternative renewable energy sources; solar, wind, wood, water, bio-gas/methane, and geothermal. Each section includes a list of recommended readings, appropriate agencies or organizations,…
TIPS Pamphlets for Parents.

ERIC Educational Resources Information Center

Algozzine, Bob, Ed.; Ysseldyke, Jim, Ed.

This manual presents 99 one-sheet informational brochures designed to improve parenting skills for children with and without disabilities. Each brochure is in a format suitable for duplicating, folding, and distributing. Each brochure offers references to related brochures in the collection. Brochures are grouped under the following broad areas:…
Ruggedness/robustness evaluation and system suitability test on United States Pharmacopoeia XXVI assay ginsenosides in Asian and American ginseng by high-performance liquid chromatography.

PubMed

Li, Yong-Guo; Chen, Ming; Chou, Gui-Xin; Wang, Zheng-Tao; Hu, Zhi-Bi

2004-09-03

The work of the ruggedness/robustness evaluation and system suitability tests was oriented to profound understand the practicability of using assay methods issued by United States Pharmacopoeia (USP XXVI and XXVII) for ginsenosides in Asian ginseng and American ginseng. The items chosen for the method validation included quantitative related items such as recovery of Rg(1) and Rb(1), respectively, and qualitative related items such as resolution, theoretical plate number, relative retention time of two critical-band-pairs, Rg(1)/Re and Rb(1) with its neighboring peak, respectively. Totally, 16 column types were used for comparison of different vendors, different packing materials, different size, etc. and five sets of LC systems and two laboratories were involved in comparing the data of both quantitative and qualitative items. The results showed that different packing materials of columns used might significantly alters separation. The column packing material Hypersil afforded the preferable separating for the ginsenosides. No significant difference was observed from the different instrumentations and inter-laboratories. Our results suggest a modification of the system suitability test as given in USP26-NF21 and the latest version of USP27-NF22, which was not suitable for most systems. Using resolutions of Rg(1)/Re and Rb(1) with its neighboring peak as critical parameters for the ginsenosides assay and omitting the relative retention time of both Rg(1)/Re and Rb(1) with its neighboring peak is our suggestion for a more reasonable, yet practicable system suitability. Six typical chromatograms gain from different columns were figured out as well.
Starting to Explore Wind Power

ERIC Educational Resources Information Center

Hare, Jonathan

2008-01-01

Described is a simple, cheap and versatile homemade windmill and electrical generator suitable for a school class to use to explore many aspects and practicalities of using wind to generate electrical power. (Contains 8 figures.)
Natural cycles and agricultural inputs: a farm gate Ecological Footprint analysis

NASA Astrophysics Data System (ADS)

Passeri, Nicolo; Blasi, Emanuele; Borucke, Michael; Galli, Alessandro; Franco, Silvio

2014-05-01

Land suitability for different crops depends on soil, water and climate conditions, as well as farmers' cultivation choices. Moreover, the use of agricultural inputs affects the natural cycles of crops and impacts their production. By assessing the ecological performance of farms as influenced by crop types, cultivation choices and land suitability one can therefore evaluate the effectiveness of agricultural practices and governance's options. Ecological Footprint accounts can be used to measure such ecological performance. These accounts track human demand for natural resources and ecological services and compare this demand with nature ability to regenerate these resource and services. This regenerative capacity is called biocapacity. Both demand (Footprint) and supply (biocapacity) are expressed in global hectares. Farming different from most other human activities, not only uses natural resources, but also enhances or erodes ecological supply. It therefore affects all factors that determine both Footprint and biocapacity. Climate, farmers' skills and choices (fertilizers, pesticides, machines) determine crop productivity, and to what extent crops preserve or compromise soils. The aim of this work is to evaluate how farmer's choices affect resources overexploitation. The study analysed how the use of inputs influences natural cycles within farm boundaries. This result from a pilot case study will show how particular farming practices affect both the farm's biocapacity and Ecological Footprint. Such analysis is relevant for informing involved stakeholders, namely the farmers on more sustainable agricultural practices and the policy makers on more suitable agricultural policies.
Service and education share responsibility for nurses' value development.

PubMed

Schank, M J; Weis, D

2001-01-01

This article examines professional values of senior baccalaureate nursing students and practicing nurses. An important finding was that practicing nurses rated behaviors reflecting values in the American Nurses Association (ANA) Code for Nurses as more important than did senior students, thereby supporting the notion that practice contributes to value formation. The ongoing development and internalization of the nursing professions' values requires active involvement by staff development educators. The phenomena of value formation and development of professional values appear to mirror the novice to expert model.
Sustainability by Design: A Reflection on the Suitability of Pedagogic Practice in Design and Engineering Courses in the Teaching of Sustainable Design

ERIC Educational Resources Information Center

Morris, Richard; Childs, Peter; Hamilton, Tom

2007-01-01

Courses in product design are offered within the United Kingdom at the University of Brighton and the University of Sussex and in both cases are run within engineering departments alongside traditional engineering courses. This paper outlines some of the intrinsic pedagogic practices that are employed by these, and other, design courses. It…
Indicators of the quality of general practice care of patients with chronic illness: a step towards the real involvement of patients in the assessment of the quality of care.

PubMed Central

Wensing, M; Grol, R; van Montfort, P; Smits, A

1996-01-01

OBJECTIVE--To develop a list of indicators of the general practice care of people with chronic illnesses considered important by both patients and practitioners and to identify the indicators that are considered relevant for patient assessment of health care quality. DESIGN--Qualitative study with focus group interviews and a written consensus procedure. SETTING--General practice in the Netherlands in 1993. SUBJECTS--34 patients with chronic illness, mostly members of patient organisations, and 19 general practitioners with expertise in either chronic disease management or experience with patient surveys. MAIN MEASURES--Aspects of general practice care considered important for the delivery of good quality care that emerged from focus group interviews; the relevance of evaluations of 41 aspects of care for patients explored through the written consensus procedure. Those aspects of general practice care agreed to be both important and relevant by patients and general practitioners were considered to be suitable indicators for patient assessment of the quality of care. RESULTS--Patients and general practitioners differed to some extent in their assessment of the aspects of care that they considered important for quality. They agreed that most indicators of care that related to the ¿doctor-patient relation¿ and to ¿information and support¿ were relevant and therefore suitable as indicators for patient assessment of health care quality. There was less agreement about the relevance of indicators of ¿medical and technical care,¿ ¿availability and accessibility,¿ and ¿organisation of services.¿ CONCLUSIONS--Several indicators of the quality of general practice care of patients with chronic illness were thought to be suitable for the patient assessment of healthcare quality, but other indicators were not, mainly because of reservations by general practitioners. IMPLICATIONS-- Qualitative methods can contribute to the selection of indicators for assessment of the quality of health care in areas where scientific evidence is limited or where patients' and providers' preferences are particularly important. PMID:10158595
Effects of Pore Size on the Osteoconductivity and Mechanical Properties of Calcium Phosphate Cement in a Rabbit Model.

PubMed

Zhao, Yi-Nan; Fan, Jun-Jun; Li, Zhi-Quan; Liu, Yan-Wu; Wu, Yao-Ping; Liu, Jian

2017-02-01

Calcium phosphate cement (CPC) porous scaffold is widely used as a suitable bone substitute to repair bone defect, but the optimal pore size is unclear yet. The current study aimed to evaluate the effect of different pore sizes on the processing of bone formation in repairing segmental bone defect of rabbits using CPC porous scaffolds. Three kinds of CPC porous scaffolds with 5 mm diameters and 12 mm length were prepared with the same porosity but different pore sizes (Group A: 200-300 µm, Group B: 300-450 µm, Group C: 450-600 µm, respectively). Twelve millimeter segmental bone defects were created in the middle of the radius bone and filled with different kinds of CPC cylindrical scaffolds. After 4, 12, and 24 weeks, alkaline phosphatase (ALP), histological assessment, and mechanical properties evaluation were performed in all three groups. After 4 weeks, ALP activity increased in all groups but was highest in Group A with smallest pore size. The new bone formation within the scaffolds was not obvious in all groups. After 12 weeks, the new bone formation within the scaffolds was obvious in each group and highest in Group A. At 24 weeks, no significant difference in new bone formation was observed among different groups. Besides the osteoconductive effect, Group A with smallest pore size also had the best mechanical properties in vivo at 12 weeks. We demonstrate that pore size has a significant effect on the osteoconductivity and mechanical properties of calcium phosphate cement porous scaffold in vivo. Small pore size favors the bone formation in the early stage and may be more suitable for repairing segmental bone defect in vivo. © 2016 International Center for Artificial Organs and Transplantation and Wiley Periodicals, Inc.
Fred Hoyle: contributions to the theory of galaxy formation

NASA Astrophysics Data System (ADS)

Efstathiou, George

I review two fundamental contributions that Fred Hoyle made to the theory of galaxy formation. Hoyle was the first to propose that protogalaxies acquired their angular momentum via tidal torques from neighbouring perturbations during a period of gravitational instability. To my knowldege, he was also the first to suggest that the masses of galaxies could be explained by the requirement that primordial gas clouds cool radiatively on a suitable timescale. Tidal torques and cooling arguments play a central role in the modern theory of galaxy formation. It is a measure of Hoyle's breadth and inventiveness that he recognized the importance of these processes at such an early stage in the history of the subject.
The Potential Role Played by the Fullerene-Like Structures of Interstellar Carbon Dust in the Formation of Molecular Hydrogen in Space

NASA Astrophysics Data System (ADS)

Cataldo, Franco; Iglesias-Groth, Susana

After a general introduction to the problem of formation of molecular hydrogen from atomic hydrogen in the interstellar medium and in the dense molecular clouds in particular, and after the explanation of the key role played by the surfaces on this process, it is proposed that the most suitable carbon surface for the formation of molecular hydrogen (from the radiative association process of atomic hydrogen) can be represented by carbon black rather than by graphite. Furthermore, it is proposed that the fullerene-like structures present in the carbon black graphene sheets are the reaction sites where molecular hydrogen may be formed.
ROCKY PLANETESIMAL FORMATION VIA FLUFFY AGGREGATES OF NANOGRAINS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Arakawa, Sota; Nakamoto, Taishi, E-mail: arakawa.s.ac@m.titech.ac.jp

2016-12-01

Several pieces of evidence suggest that silicate grains in primitive meteorites are not interstellar grains but condensates formed in the early solar system. Moreover, the size distribution of matrix grains in chondrites implies that these condensates might be formed as nanometer-sized grains. Therefore, we propose a novel scenario for rocky planetesimal formation in which nanometer-sized silicate grains are produced by evaporation and recondensation events in early solar nebula, and rocky planetesimals are formed via aggregation of these nanograins. We reveal that silicate nanograins can grow into rocky planetesimals via direct aggregation without catastrophic fragmentation and serious radial drift, and ourmore » results provide a suitable condition for protoplanet formation in our solar system.« less
[Cultural regionalization for Coptis chinensis based on 3S technology platform Ⅰ. Study on growth suitability for Coptis chinensis based on ecological factors analysis by Maxent and ArcGIS model].

PubMed

Liu, Xin; Yang, Yan-Fang; Song, Hong-Ping; Zhang, Xiao-Bo; Huang, Lu-Qi; Wu, He-Zhen

2016-09-01

At the urgent request of Coptis chinensis planting,growth suitability as assessment indicators for C. chinensis cultivation was proposed and analyzed in this paper , based on chemical quality determination and ecological fators analysis by Maxent and ArcGIS model. Its potential distribution areas at differernt suitability grade and regionalization map were formulated based on statistical theory and growth suitability theory. The results showed that the most suitable habitats is some parts of Chongqing and Hubei province, such as Shizhu, Lichuan, Wulong, Wuxi, Enshi. There are seven ecological factor is the main ecological factors affect the growth of Coptidis Rhizoma, including altitude, precipitation in February and September and the rise of precipitation and altitude is conducive to the accumulation of total alkaloid content in C. chinensis. Therefore, The results of the study not only illustrates the most suitable for the surroundings of Coptidis Rhizoma, also helpful to further research and practice of cultivation regionalization, wild resource monitoring and large-scale cultivation of traditional Chinese medicine plants. Copyright© by the Chinese Pharmaceutical Association.
Elementary Teachers' Formative Evaluation Practices in an Era of Curricular Reform in Quebec, Canada

ERIC Educational Resources Information Center

Thomas, Lynn; Deaudelin, Colette; Desjardins, Julie; Dezutter, Olivier

2011-01-01

This study examines the formative evaluation practices of 13 experienced elementary school teachers in Quebec, Canada at the level of teacher-student interaction. The qualitative study is based on both semi-structured and stimulated recall interviews as well as videotapes of classroom activities. The participating teachers were found to be using…
Elementary Students as Active Agents in Their Learning: An Empirical Study of the Connections between Assessment Practices and Student Metacognition

ERIC Educational Resources Information Center

Braund, Heather; DeLuca, Christopher

2018-01-01

This study explored how elementary teachers leveraged and structured student-involved formative assessment to promote metacognition and self-regulation. Research has suggested a connection between formative assessment practices (e.g., self-assessment and peer-assessment) and metacognition. However, this connection has limited empirical support,…
Boosting Engagement and Growth with Formative Assessment: Leaders Share Their Lessons

ERIC Educational Resources Information Center

Northwest Evaluation Association, 2016

2016-01-01

Our featured leaders saw big gains when their teachers began using formative assessment practice to guide student growth minute-by-minute. Read the fourth article in our five-part series for the scoop on how committing to this high-impact instructional practice paid off for a regional agency, district, and school. Learn: (1) why our featured…
Formative Assessment in Confucian Heritage Culture Classrooms: Activity Theory Analysis of Tensions, Contradictions and Hybrid Practices

ERIC Educational Resources Information Center

Thanh Pham, Thi Hong; Renshaw, Peter

2015-01-01

Formative assessment has recently become a preferred assessment strategy in educational institutions worldwide. However, it is not easy to implement in Asian classrooms, because local cultures and institutional constraints potentially hinder the practice. This one-semester study aimed to use the "third space", as the core of the third…

Formative Assessment as an Effective Leadership Learning Tool.

PubMed

Garrett, J Matthew; Camper, Jill M

2015-01-01

Formative assessment can be a critical and creative practice in leadership education and significantly enhance student learning, leader development, and leadership development. This chapter seeks to frame the use of assessment as both a best practice in leadership education and as an integral component to effective leadership learning pedagogy. © 2015 Wiley Periodicals, Inc., A Wiley Company.
Formative Assessment for Middle School Mathematics Instruction: An Evidence-Based Approach to Evaluating Teacher Posing, Pausing, and Probing Moves

ERIC Educational Resources Information Center

Holmberg, Carrie

2017-01-01

This study involved empirical investigation of a moves-based conceptualization of teacher practices of planning, enacting, and reflecting on formative assessment (FA) in mathematics classrooms in a high-needs school district in California. A qualitative case study of six middle school mathematics teachers' practices of "posing"…
Value-Based Interactive Multimedia Development through Integrated Practice for the Formation of Students' Character

ERIC Educational Resources Information Center

Komalasari, Kokom; Saripudin, Didin

2017-01-01

This study aims to describe the development of value-based interactive multimedia through integrated practice for the formation of students' character. This study uses Research and Development Design at the Department of Social Sciences Education at Indonesia University of Education. Conceptually, the design in question is integration of living…
Endo-Fullerene and Doped Diamond Nanocrystallite Based Models of Qubits for Solid-State Quantum Computers

NASA Technical Reports Server (NTRS)

Park, Seongjun; Srivastava, Deepak; Cho, Kyeongjae; Biegel, Bryan (Technical Monitor)

2001-01-01

Models of encapsulated 1/2 nuclear spin H-1 and P-31 atoms in fullerene and diamond nanocrystallite, respectively, are proposed and examined with ab-initio local density functional method for possible applications as single quantum bits (qubits) in solid-state quantum computers. A H-1 atom encapsulated in a fully deuterated fullerene, C(sub 20)D(sub 20), forms the first model system and ab-initio calculation shows that H-1 atom is stable in atomic state at the center of the fullerene with a barrier of about 1 eV to escape. A P-31 atom positioned at the center of a diamond nanocrystallite is the second model system, and 3 1P atom is found to be stable at the substitutional site relative to interstitial sites by 15 eV, Vacancy formation energy is 6 eV in diamond so that substitutional P-31 atom will be stable against diffusion during the formation mechanisms within the nanocrystallite. The coupling between the nuclear spin and weakly bound (valance) donor electron coupling in both systems is found to be suitable for single qubit applications, where as the spatial distributions of (valance) donor electron wave functions are found to be preferentially spread along certain lattice directions facilitating two or more qubit applications. The feasibility of the fabrication pathways for both model solid-state qubit systems within practical quantum computers is discussed with in the context of our proposed solid-state qubits.
Measurement Matters: Assessing Personal Qualities Other Than Cognitive Ability for Educational Purposes

PubMed Central

Duckworth, Angela L.; Yeager, David Scott

2016-01-01

There has been perennial interest in personal qualities other than cognitive ability that determine success, including self-control, grit, growth mindset, and many others. Attempts to measure such qualities for the purposes of educational policy and practice, however, are more recent. In this article, we identify serious challenges to doing so. We first address confusion over terminology, including the descriptor “non-cognitive.” We conclude that debate over the optimal name for this broad category of personal qualities obscures substantial agreement about the specific attributes worth measuring. Next, we discuss advantages and limitations of different measures. In particular, we compare self-report questionnaires, teacher-report questionnaires, and performance tasks, using self-control as an illustrative case study to make the general point that each approach is imperfect in its own way. Finally, we discuss how each measure’s imperfections can affect its suitability for program evaluation, accountability, individual diagnosis, and practice improvement. For example, we do not believe any available measure is suitable for between-school accountability judgments. In addition to urging caution among policymakers and practitioners, we highlight medium-term innovations that may make measures of these personal qualities more suitable for educational purposes. PMID:27134288
Geology and Refractory Clay Deposits of the Haldeman and Wrigley Quadrangles, Kentucky

USGS Publications Warehouse

Patterson, Sam H.; Hosterman, John W.; Huddle, John Warfield

1962-01-01

The Haldeman and Wrigley 7th-minute quadrangles are near the western edge of the eastern Kentucky coal field and cover an area of approximately 117 square miles in parts of Carter, Rowan, Elliott, and Morgan Counties, Ky. The rocks exposed in the two quadrangles are of Early and Late Mississippian and Early and Middle Pennsylvanian age. The Mississippian rocks are composed of the thick Brodhead formation, which consists of siltstone and shale, and eleven thin marine limestone and shale formations, having an aggregate thickness of about 150 feet. The Lee and Breathitt formations, of Pennsylvanian age, consist of sandstone, siltstone, and shale; they also contain thin beds of coal and several beds of underclay, including the economically important Olive Hill clay bed of Crider, 1913. Pennsylvanian rocks include beds of both continental and marine origin. The eleven thin Mississippian formations and the upper-most part of the thick Brodhead formation are truncated by a prominent unconformity on which rocks of Pennsylvanian age rest. The rocks occupy a region of gentle dips between the Cincinnati arch and the Appalachian Mountains. Refractory clay deposits are in the Olive Hill clay bed, which occurs in the lower part of the Lee formation. The Olive Hill clay bed is discontinuous and consists of a series of irregularly shaped lenses. The bed is approximately two-thirds semifiint clay and one-third flint clay, and it contains minor amounts of plastic clay. Some of the flint clay is nearly pure kaolinite, but the semi flint and plastic clay consists of mixtures of kaolinite, illite, and mixed-layer clay minerals. The structure of the kaolinite ranges from highly crystalline to very poorly crystalline 'fireclay' type. The degree of crystallinity of the kaolinite and the hardness of the clay vary inversely with the amount of illite and mixed-layer clay minerals present. The nearly pure kaolinite is believed to have formed by the removal of alkalies and some silica fram mixtures of kaolinite, illite, and mixed-layer clays by leaching in swamps to the deposition of the beds overlying the clay. The refractory properties of the clay vary directly with the purity of the kaolinite, and refractoriness decreases as the proportions of illite and mixed-layer clays increase. Certain nonclay minerals, chiefly siderite, pyrite, and iron oxide-bearing minerals, also act as fiuxes, reducing the refractory properties of the clay. The entire resources of clay in the Olive Hill clay bed are roughly and tentatively estimated to include 105,000,000 tons in the Haldeman quadrangle and 175,000,000 tons in the Wrigley quadrangle. Much of this clay is of poor quality and the amount that is better than the minimum requirements for use in refractories is probably about 30,000,000 tons. Only a fraction of this tonnage is suitable for superheat-duty products. Limestone is the only nonmetallic mineral resource other than refractory clay that has been developed in the two quadrangles, but 1arge amounts of shale suitable for use in making lightweight aggregate and structural clay products may also be present. Most of the limestone, which is quarried. in both quadrangles, is used for road-metal, concrete aggregate, and agriculture stone, but some of the limestone is of the quality that would be suitable for other uses. Virtually all the Mississippian Beech Creek limestone of Malott, 1919 which is as much as 18 feet thick, consists of high-calcium limestone. Shale beds that appear most favoralble for making lightweight aggregate are in the shale facies of the Lee formation of Pennsylvanian age. Shale that is probably suitable for structural clay products is present in the shale flacles of the Lee formation and in the Muldraugh formation of Mississippian age. Several dry holes have been drilled in search for oil and gas within the area of the two quadrangles. Though no commercial production was ever attained, one well furnished a supply of gas f
Development of a theory- and evidence-based intervention to enhance implementation of physical therapy guidelines for the management of low back pain

PubMed Central

2014-01-01

Background Systematic planning could improve the generally moderate effectiveness of interventions to enhance adherence to clinical practice guidelines. The aim of our study was to demonstrate how the process of Intervention Mapping was used to develop an intervention to address the lack of adherence to the national CPG for low back pain by Dutch physical therapists. Methods We systematically developed a program to improve adherence to the Dutch physical therapy guidelines for low back pain. Based on multi-method formative research, we formulated program and change objectives. Selected theory-based methods of change and practical applications were combined into an intervention program. Implementation and evaluation plans were developed. Results Formative research revealed influential determinants for physical therapists and practice quality managers. Self-regulation was appropriate because both the physical therapists and the practice managers needed to monitor current practice and make and implement plans for change. The program stimulated interaction between practice levels by emphasizing collective goal setting. It combined practical applications, such as knowledge transfer and discussion-and-feedback, based on theory-based methods, such as consciousness raising and active learning. The implementation plan incorporated the wider environment. The evaluation plan included an effect and process evaluation. Conclusions Intervention Mapping is a useful framework for formative data in program planning in the field of clinical guideline implementation. However, a decision aid to select determinants of guideline adherence identified in the formative research to analyse the problem may increase the efficiency of the application of the Intervention Mapping process. PMID:24428945
Development of a theory- and evidence-based intervention to enhance implementation of physical therapy guidelines for the management of low back pain.

PubMed

Rutten, Geert M; Harting, Janneke; Bartholomew, Leona K; Braspenning, Jozé C; van Dolder, Rob; Heijmans, Marcel Fgj; Hendriks, Erik Jm; Kremers, Stef Pj; van Peppen, Roland Ps; Rutten, Steven Tj; Schlief, Angelique; de Vries, Nanne K; Oostendorp, Rob Ab

2014-01-15

Systematic planning could improve the generally moderate effectiveness of interventions to enhance adherence to clinical practice guidelines. The aim of our study was to demonstrate how the process of Intervention Mapping was used to develop an intervention to address the lack of adherence to the national CPG for low back pain by Dutch physical therapists. We systematically developed a program to improve adherence to the Dutch physical therapy guidelines for low back pain. Based on multi-method formative research, we formulated program and change objectives. Selected theory-based methods of change and practical applications were combined into an intervention program. Implementation and evaluation plans were developed. Formative research revealed influential determinants for physical therapists and practice quality managers. Self-regulation was appropriate because both the physical therapists and the practice managers needed to monitor current practice and make and implement plans for change. The program stimulated interaction between practice levels by emphasizing collective goal setting. It combined practical applications, such as knowledge transfer and discussion-and-feedback, based on theory-based methods, such as consciousness raising and active learning. The implementation plan incorporated the wider environment. The evaluation plan included an effect and process evaluation. Intervention Mapping is a useful framework for formative data in program planning in the field of clinical guideline implementation. However, a decision aid to select determinants of guideline adherence identified in the formative research to analyse the problem may increase the efficiency of the application of the Intervention Mapping process.
Selection. ERIC Processing Manual, Section III.

ERIC Educational Resources Information Center

Brandhorst, Ted, Ed.

Rules and guidelines are provided governing the selection of documents and journal articles to be included in the ERIC database. Selection criteria are described under the five headings: (1) Appropriateness of content/subject matter; (2) Suitability of format, medium, document type; (3) Quality of content; (4) Legibility and reproducibility; (5)…
A methodology for decisionmaking in project evaluation in land management planning

Treesearch

A. Weintraub

1978-01-01

In order to evaluate alternative plans, wildland management planners must consider many objectives, such as timber production, recreational use, and community stability. The method presented utilizes the type of qualitative and intuitive information widely available to wildland management planners, and structures this information into a format suitable for...
Inactivation of E. coli O157:H7 attached to spinach harvester blade using bacteriophage

USDA-ARS?s Scientific Manuscript database

Outbreaks associated with leafy greens have focused attention on the transfer of human pathogens to leafy greens during harvest with commercial equipment. Bacteriophages can kill bacteria and are suitable candidates for biocontrol of these pathogens. We determined biofilm formation by Escherichia co...
UNIT, PETROLOGY.

ERIC Educational Resources Information Center

Louisiana Arts and Science Center, Baton Rouge.

THIS TEACHER'S GUIDE FOR A UNIT ON PETROLOGY IS SUITABLE FOR ADAPTATION AT EITHER THE UPPER ELEMENTARY OR THE JUNIOR HIGH SCHOOL LEVELS. THE UNIT BEGINS WITH A STORY THAT INTRODUCES VOLCANIC ACTION AND IGNEOUS ROCK FORMATION. SELECTED CONCEPTS ARE LISTED FOLLOWED BY SUGGESTED ACTIVITIES. A BIBLIOGRAPHY, FILM LIST, VOCABULARY LIST, AND QUESTION AND…
Push-through direct injection NMR: an optimized automation method applied to metabolomics

EPA Science Inventory

There is a pressing need to increase the throughput of NMR analysis in fields such as metabolomics and drug discovery. Direct injection (DI) NMR automation is recognized to have the potential to meet this need due to its suitability for integration with the 96-well plate format. ...
Group Formation in Mobile Computer Supported Collaborative Learning Contexts: A Systematic Literature Review

ERIC Educational Resources Information Center

Amara, Sofiane; Macedo, Joaquim; Bendella, Fatima; Santos, Alexandre

2016-01-01

Learners are becoming increasingly divers. They may have much personal, social, cultural, psychological, and cognitive diversity. Forming suitable learning groups represents, therefore, a hard and time-consuming task. In Mobile Computer Supported Collaborative Learning (MCSCL) environments, this task is more difficult. Instructors need to consider…
Fog Machines, Vapors, and Phase Diagrams

ERIC Educational Resources Information Center

Vitz, Ed

2008-01-01

A series of demonstrations is described that elucidate the operation of commercial fog machines by using common laboratory equipment and supplies. The formation of fogs, or "mixing clouds", is discussed in terms of the phase diagram for water and other chemical principles. The demonstrations can be adapted for presentation suitable for elementary…
A Hydrazine-Free Wolff-Kishner Reaction Suitable for an Undergraduate Laboratory

ERIC Educational Resources Information Center

Cranwell, Philippa B.; Russell, Andrew T.

2016-01-01

A Wolff-Kishner reaction that does not require hydrazine has been developed. The reaction sequence has two steps: formation of a carbomethoxyhydrazone from methyl hydrazinocarboxylate and acetophenone, then decomposition of this intermediate by treatment with potassium hydroxide in triethylene glycol. Purification is by filtration through a plug…
10 CFR 960.3-2-1 - Site screening for potentially acceptable sites.

Code of Federal Regulations, 2011 CFR

2011-01-01

... that contain rock formations of suitable depth, thickness, and lateral extent and have structural... require diversity of geohydrologic settings and rock types and consideration of regionality, as specified... provisions for diversity of geohydrologic settings, diversity of rock types, and regionality (§§ 960.3-1-1...
16 CFR 801.50 - Formation of unincorporated entities.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Formation of unincorporated entities. 801.50... of unincorporated entities. (a) In the formation of an unincorporated entity (other than in... entity and the unincorporated entity itself may, in the formation transaction, be both acquiring and...
16 CFR 801.50 - Formation of unincorporated entities.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 16 Commercial Practices 1 2011-01-01 2011-01-01 false Formation of unincorporated entities. 801.50... of unincorporated entities. (a) In the formation of an unincorporated entity (other than in... entity and the unincorporated entity itself may, in the formation transaction, be both acquiring and...
Best Practices for Siting Solar Photovoltaics on Municipal Solid Waste Landfills. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kiatreungwattana, K.; Mosey, G.; Jones-Johnson, S.

2013-04-01

The Environmental Protection Agency and the National Renewable Energy Laboratory developed this best practices document to address common technical challenges for siting solar photovoltaics (PV) on municipal solid waste (MSW) landfills. The purpose of this document is to promote the use of MSW landfills for solar energy systems. Closed landfills and portions of active landfills with closed cells represent thousands of acres of property that may be suitable for siting solar photovoltaics (PV). These closed landfills may be suitable for near-term construction, making these sites strong candidate to take advantage of the 30% Federal Business Energy Investment Tax Credit. Itmore » was prepared in response to the increasing interest in siting renewable energy on landfills from solar developers; landfill owners; and federal, state, and local governments. It contains examples of solar PV projects on landfills and technical considerations and best practices that were gathered from examining the implementation of several of these projects.« less

Generalized Nuclear Data: A New Structure (with Supporting Infrastructure) for Handling Nuclear Data

NASA Astrophysics Data System (ADS)

Mattoon, C. M.; Beck, B. R.; Patel, N. R.; Summers, N. C.; Hedstrom, G. W.; Brown, D. A.

2012-12-01

The Evaluated Nuclear Data File (ENDF) format was designed in the 1960s to accommodate neutron reaction data to support nuclear engineering applications in power, national security and criticality safety. Over the years, the scope of the format has been extended to handle many other kinds of data including charged particle, decay, atomic, photo-nuclear and thermal neutron scattering. Although ENDF has wide acceptance and support for many data types, its limited support for correlated particle emission, limited numeric precision, and general lack of extensibility mean that the nuclear data community cannot take advantage of many emerging opportunities. More generally, the ENDF format provides an unfriendly environment that makes it difficult for new data evaluators and users to create and access nuclear data. The Cross Section Evaluation Working Group (CSEWG) has begun the design of a new Generalized Nuclear Data (or 'GND') structure, meant to replace older formats with a hierarchy that mirrors the underlying physics, and is aligned with modern coding and database practices. In support of this new structure, Lawrence Livermore National Laboratory (LLNL) has updated its nuclear data/reactions management package Fudge to handle GND structured nuclear data. Fudge provides tools for converting both the latest ENDF format (ENDF-6) and the LLNL Evaluated Nuclear Data Library (ENDL) format to and from GND, as well as for visualizing, modifying and processing (i.e., converting evaluated nuclear data into a form more suitable to transport codes) GND structured nuclear data. GND defines the structure needed for storing nuclear data evaluations and the type of data that needs to be stored. But unlike ENDF and ENDL, GND does not define how the data are to be stored in a file. Currently, Fudge writes the structured GND data to a file using the eXtensible Markup Language (XML), as it is ASCII based and can be viewed with any text editor. XML is a meta-language, meaning that it has a primitive set of definitions for representing hierarchical data/text in a file. Other meta-languages, like HDF5 which stores the data in binary form, can also be used to store GND in a file. In this paper, we will present an overview of the new GND data structures along with associated tools in Fudge.
Transfer of Training with Formation Flight Trainer.

ERIC Educational Resources Information Center

Reid, Gary B.; Cyrus, Michael L.

The present research was conducted to determine transfer of practice from a formation simulator to actual aircraft flight for the wing aircraft component of the formation flying task. Evidence in support of positive transfer was obtained by comparing students trained in the formation simulator with students who were essentially untrained and with…
Best Practices in Academic Assessment in Higher Education: A Case in Formative and Shared Assessment

ERIC Educational Resources Information Center

López Pastor, Víctor M.

2011-01-01

The aim of this article is three-fold: (a) to present an example of best practices in formative assessment in university instruction, offering three different methods of learning and assessment to pass a subject; (b) to analyze differences in academic performance depending on method of learning and assessment chosen; (c) to consider professors'…
Health and Safety in Practical Science in Schools: A UK Perspective 2, Using Model Risk Assessments

ERIC Educational Resources Information Center

Borrows, Peter

2008-01-01

The previous article in this series explained the difference between hazard and risk. If the risk is too high, steps must be taken to reduce it to a sufficiently low level by adopting suitable protective control measures. If a practical activity in a science lesson has some risk associated with it then one way of reducing the risk might be to…
Why do clinicians choose the therapies and techniques they do? Exploring clinical decision-making via treatment selections in dysphagia practice.

PubMed

McCurtin, Arlene; Healy, Chiara

2017-02-01

Speech-language pathologists (SLPs) are assumed to use evidence-based practice to inform treatment decisions. However, the reasoning underpinning treatment selections is not well known. Understanding why SLPs choose the treatments they do may be clarified by exploring the reasoning tied to specific treatments such as dysphagia interventions. An electronic survey methodology was utilised. Participants were accessed via the gatekeepers of two national dysphagia special interest groups representing adult and paediatric populations. Information was elicited on the dysphagia therapies and techniques used and on the reasoning for using/not using therapies. Data was analysed using descriptive and non-parametric statistics. The survey had a 74.8% response rate (n = 116). Consensus in both treatment selections and reasoning supporting treatment decisions was evident. Three favoured interventions (texture modification, thickening liquids, positioning changes) were identified. The reasoning supporting treatment choices centred primarily on client suitability and clinician knowledge. Knowledge reflected both absent knowledge (e.g. training) and accumulated knowledge (clinical experience). Dysphagia practice appears highly-defined, being characterised by group consensus regarding both preferred treatments and the reasoning underpinning treatment selections. Treatment selections are based on two core criteria: client suitability and the SLPs experience/knowledge. Explicit scientific reasoning is less influential than practice-centric influences.
Testing soil and water conservation methods in 16 countries; do best practices exist?

NASA Astrophysics Data System (ADS)

Jetten, V.; Shrestha, D. P.

2012-04-01

In order to find suitable conservation measures to protect the land from further deterioration leading to desertification, sustainable land management technologies were applied in 16 locations in countries having land degradation problems such as erosion (by wind and water), salinization, vegetation degradation and wild fire. The technologies were selected in consultation with all the stakeholders involved which included farmers, land users, local administrators and scientists. The selected technologies varied from vegetative (planting trees) through agronomic (crop rotation, contour ploughing, minimum tillage) to mechanical (terracing, fencing, prescribed burning) measures. They were applied in the 16 hotspot locations in semi-arid and arid regions to test their suitability for conservation purposes. Improvement on soil conditions was monitored during 2-3 years and the effectiveness of the applied technologies were evaluated. Although data from monitoring is available for only 2-3 years the results show improvements of soil conditions and indicate that good land management practices can help in minimizing land degradation. The results also show that the so called "the best practices" which could be applied everywhere with big success do not exist. Each region is characterized by having its own bio-physical and socio-economic factors which determine whether certain land management practices can be applied successfully which is also socially acceptable in the area.
Professional Identity Formation in an Advanced Pharmacy Practice Experience Emphasizing Self-Authorship.

PubMed

Johnson, Jessica L; Chauvin, Sheila

2016-12-25

Objective. To examine the extent to which reflective essays written by graduating pharmacy students revealed professional identity formation and self-authorship development. Design. Following a six-week advanced pharmacy practice experience (APPE) grounded in Baxter-Magolda's Learning Partnerships Model of self-authorship development, students completed a culminating reflective essay on their rotation experiences and professional identity formation. Assessment. Thematic and categorical analysis of 41 de-identified essays revealed nine themes and evidence of all Baxter-Magolda's domains and phases of self-authorship. Analysis also suggested relationships between self-authorship and pharmacist professional identity formation. Conclusion. Results suggest that purposeful structuring of learning experiences can facilitate professional identity formation. Further, Baxter-Magolda's framework for self-authorship and use of the Learning Partnership Model seem to align well with pharmacist professional identify formation. Results of this study could be used by pharmacy faculty members when considering how to fill gaps in professional identity formation in future course and curriculum development.
Professional Identity Formation in an Advanced Pharmacy Practice Experience Emphasizing Self-Authorship

PubMed Central

Chauvin, Sheila

2016-01-01

Objective. To examine the extent to which reflective essays written by graduating pharmacy students revealed professional identity formation and self-authorship development. Design. Following a six-week advanced pharmacy practice experience (APPE) grounded in Baxter-Magolda’s Learning Partnerships Model of self-authorship development, students completed a culminating reflective essay on their rotation experiences and professional identity formation. Assessment. Thematic and categorical analysis of 41 de-identified essays revealed nine themes and evidence of all Baxter-Magolda’s domains and phases of self-authorship. Analysis also suggested relationships between self-authorship and pharmacist professional identity formation. Conclusion. Results suggest that purposeful structuring of learning experiences can facilitate professional identity formation. Further, Baxter-Magolda’s framework for self-authorship and use of the Learning Partnership Model seem to align well with pharmacist professional identify formation. Results of this study could be used by pharmacy faculty members when considering how to fill gaps in professional identity formation in future course and curriculum development. PMID:28179721
Multilayered and digitally structured presentation formats of trustworthy recommendations: a combined survey and randomised trial

PubMed Central

Vandvik, Per Olav; Alonso-Coello, Pablo; Akl, Elie A; Thornton, Judith; Rigau, David; Adams, Katie; O'Connor, Paul; Guyatt, Gordon; Kristiansen, Annette

2017-01-01

Objectives To investigate practicing physicians' preferences, perceived usefulness and understanding of a new multilayered guideline presentation format—compared to a standard format—as well as conceptual understanding of trustworthy guideline concepts. Design Participants attended a standardised lecture in which they were presented with a clinical scenario and randomised to view a guideline recommendation in a multilayered format or standard format after which they answered multiple-choice questions using clickers. Both groups were also presented and asked about guideline concepts. Setting Mandatory educational lectures in 7 non-academic and academic hospitals, and 2 settings involving primary care in Lebanon, Norway, Spain and the UK. Participants 181 practicing physicians in internal medicine (156) and general practice (25). Interventions A new digitally structured, multilayered guideline presentation format and a standard narrative presentation format currently in widespread use. Primary and secondary outcome measures Our primary outcome was preference for presentation format. Understanding, perceived usefulness and perception of absolute effects were secondary outcomes. Results 72% (95% CI 65 to 79) of participants preferred the multilayered format and 16% (95% CI 10 to 22) preferred the standard format. A majority agreed that recommendations (multilayered 86% vs standard 91%, p value=0.31) and evidence summaries (79% vs 77%, p value=0.76) were useful in the context of the clinical scenario. 72% of participants randomised to the multilayered format vs 58% for standard formats reported correct understanding of the recommendations (p value=0.06). Most participants elected an appropriate clinical action after viewing the recommendations (98% vs 92%, p value=0.10). 82% of the participants considered absolute effect estimates in evidence summaries helpful or crucial. Conclusions Clinicians clearly preferred a novel multilayered presentation format to the standard format. Whether the preferred format improves decision-making and has an impact on patient important outcomes merits further investigation. PMID:28188149
Finding suitable applicants for a staff opening.

PubMed

Sachs Hills, Laura

2004-01-01

Many medical practices run classified ads to seek applicants for job openings and do little else. Several effective recruitment strategies, however, can be used in addition to or instead of classified advertising. In this article, the author suggests working both inside and outside the practice to draw in top-notch job applicants. She describes how local schools, employment agencies, and temporary agencies can help fill positions in medical practices and how such arrangements typically work. The author also suggests ways to bring excellent former employees back to the fold. Finally, she offers practical tips for protecing yourself financially when hiring a new employee through an agency and paying a placement fee.
Development of Surfaces Optically Suitable for Flat Solar Panels

NASA Technical Reports Server (NTRS)

Desmet, D.; Jason, A.; Parr, A.

1977-01-01

Innovations in reflectometry techniques are described; and the development of an absorbing selective coating is discussed along with details of surface properties. Conclusions as to the parameterization desired for practical applications of selective surfaces are provided.
Quick, simple measures of family relationships for use in clinical practice and research. A systematic review.

PubMed

Pritchett, Rachel; Kemp, Jeremy; Wilson, Philip; Minnis, Helen; Bryce, Graham; Gillberg, Christopher

2011-04-01

Family functioning has been implicated in the onset of child and adult psychopathology. Various measures exist for assessing constructs in the areas of parent-child relationships, parental practices and discipline, parental beliefs, marital quality, global family functioning and situation-specific measures. To identify systematically all questionnaire measures of family functioning appropriate for use in primary care and research. A systematic literature review was conducted, following PRISMA guidelines and searching 14 bibliographic databases using pre-determined filters, to identify family functioning measures suitable for use in families with children from 0 to 3 years old. One hundred and seven measures of family functioning were reported and tabulated and the most commonly used measures were identified. There are numerous measures available demonstrating characteristics, which make them suitable for continued use. Future research is needed to examine the more holistic measurement of family functioning using integration of multi-informant data.
EEG-guided meditation: A personalized approach.

PubMed

Fingelkurts, Andrew A; Fingelkurts, Alexander A; Kallio-Tamminen, Tarja

2015-12-01

The therapeutic potential of meditation for physical and mental well-being is well documented, however the possibility of adverse effects warrants further discussion of the suitability of any particular meditation practice for every given participant. This concern highlights the need for a personalized approach in the meditation practice adjusted for a concrete individual. This can be done by using an objective screening procedure that detects the weak and strong cognitive skills in brain function, thus helping design a tailored meditation training protocol. Quantitative electroencephalogram (qEEG) is a suitable tool that allows identification of individual neurophysiological types. Using qEEG screening can aid developing a meditation training program that maximizes results and minimizes risk of potential negative effects. This brief theoretical-conceptual review provides a discussion of the problem and presents some illustrative results on the usage of qEEG screening for the guidance of mediation personalization. Copyright © 2015 Elsevier Ltd. All rights reserved.
Students' voices: the lived experience of faculty incivility as a barrier to professional formation in associate degree nursing education.

PubMed

Del Prato, Darlene

2013-03-01

Nursing faculty play an important role in constructing learning environments that foster the positive formation of future nurses. The students' construction of a nursing identity is grounded in social interactions with faculty and is shaped by values and norms learned in both the formal and informal curriculum. The informal curriculum is communicated in faculty teaching practices and relationships established with students. To acquire an understanding of the students' lived experience in associate degree nursing education and identify educational practices that support students' professional formation. A phenomenological design was chosen to study the lived experience of nursing education. In-depth interviews were conducted with 13 participants. Five students participated in second interviews for a total of 18 interviews. Symbolic interactionism guided data analysis. Participants represented three ADN programs in the northeastern U.S. and were diverse in terms of gender and age and to a lesser extent race, and sexual orientation. Faculty incivility included demeaning experiences, subjective evaluation, rigid expectations, and targeting and weeding out practices. Targeting practices contributed to a perceived focus on clinical evaluation and inhibited clinical learning. Faculty incivility hindered professional formation by interfering with learning, self-esteem, self-efficacy, and confidence. Faculty who model professional values in the formal and hidden curriculum contribute to the positive formation of future nurses. Nursing faculty should be formally prepared as educators to establish respectful, connected relationships with students. Faculty should role model professional values, deemphasize their evaluative role, provide constructive formative feedback, and remain open to the student's potential for growth. Copyright © 2012 Elsevier Ltd. All rights reserved.
The geochemical transformation of soils by agriculture and its dependence on soil erosion: An application of the geochemical mass balance approach.

PubMed

Yoo, Kyungsoo; Fisher, Beth; Ji, Junling; Aufdenkampe, Anthony; Klaminder, Jonatan

2015-07-15

Agricultural activities alter elemental budgets of soils and thus their long-term geochemical development and suitability for food production. This study examined the utility of a geochemical mass balance approach that has been frequently used for understanding geochemical aspect of soil formation, but has not previously been applied to agricultural settings. Protected forest served as a reference to quantify the cumulative fluxes of Ca, P, K, and Pb at a nearby tilled crop land. This comparison was made at two sites with contrasting erosional environments: relatively flat Coastal Plain in Delaware vs. hilly Piedmont in Pennsylvania. Mass balance calculations suggested that liming not only replenished the Ca lost prior to agricultural practice but also added substantial surplus at both sites. At the relatively slowly eroding Coastal Plain site, the agricultural soil exhibited enrichment of P and less depletion of K, while both elements were depleted in the forest soil. At the rapidly eroding Piedmont site, erosion inhibited P enrichment. In similar, agricultural Pb contamination appeared to have resulted in Pb enrichment in the relatively slowly eroding Coastal Plain agricultural soil, while not in the rapidly eroding Piedmont soils. We conclude that agricultural practices transform soils into a new geochemical state where current levels of Ca, P, and Pb exceed those provided by the local soil minerals, but such impacts are significantly offset by soil erosion. Copyright © 2015 Elsevier B.V. All rights reserved.
"Straitjacket" or "Springboard for Sustainable Learning"? The Implications of Formative Assessment Practices in Vocational Learning Cultures

ERIC Educational Resources Information Center

Davies, Jenifer; Ecclestone, Kathryn

2008-01-01

In contrast to theoretical and empirical insights from research into formative assessment in compulsory schooling, understanding the relationship between formative assessment, motivation and learning in vocational education has been a topic neglected by researchers. The Improving Formative Assessment project (IFA) addresses this gap, using a…
Feedback as Dialogue: Exploring the Links between Formative Assessment and Social Software in Distance Learning

ERIC Educational Resources Information Center

Hatzipanagos, Stylianos; Warburton, Steven

2009-01-01

The paper explores the relationship between formative assessment and social software. Formative assessment practices though beneficial for student learning become marginalised and constrained in open and distance learning environments in higher education. Feedback is a key factor in formative assessment and learners can benefit from the deployment…
An examination of techniques for reformatting digital cartographic data/part 1: the raster-to- vector process.

USGS Publications Warehouse

Peuquet, D.J.

1981-01-01

Current graphic devices suitable for high-speed computer input and output of cartographic data are tending more and more to be raster-oriented, such as the rotating drum scanner and the color raster display. However, the majority of commonly used manipulative techniques in computer-assisted cartography and automated spatial data handling continue to require that the data be in vector format. This situation has recently precipitated the requirement for very fast techniques for converting digital cartographic data from raster to vector format for processing, and then back into raster format for plotting. The current article is part 1 of a 2 part paper concerned with examining the state-of-the-art in these conversion techniques. -from Author
"Good Practice" School Advisors in Greek Education: The Difficulty in Linking Collaborative Networks, Communities of Practice and Quality Culture

ERIC Educational Resources Information Center

Stamelos, Georgios; Bartzakli, Marianna

2013-01-01

Quality in education is considered to be a central aim as far as the formation and the implementation of educational policy worldwide is concerned. The basic prerequisite for it, though, is quality culture. Collaborative networks between school advisors and primary school teachers are examined to reveal how they can affect the formation of…
16 CFR Figure 10 to Subpart A of... - Insulation Radiant Panel Test Data Log Format

Code of Federal Regulations, 2014 CFR

2014-01-01

... 16 Commercial Practices 2 2014-01-01 2014-01-01 false Insulation Radiant Panel Test Data Log Format 10 Figure 10 to Subpart A of Part 1209 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION CONSUMER PRODUCT SAFETY ACT REGULATIONS INTERIM SAFETY STANDARD FOR CELLULOSE INSULATION The Standard Pt. 1209, Subpt. A, Fig. 10 Figure 10 to Subpart A...

16 CFR Figure 10 to Subpart A of... - Insulation Radiant Panel Test Data Log Format

Code of Federal Regulations, 2013 CFR

2013-01-01

... 16 Commercial Practices 2 2013-01-01 2013-01-01 false Insulation Radiant Panel Test Data Log Format 10 Figure 10 to Subpart A of Part 1209 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION CONSUMER PRODUCT SAFETY ACT REGULATIONS INTERIM SAFETY STANDARD FOR CELLULOSE INSULATION The Standard Pt. 1209, Subpt. A, Fig. 10 Figure 10 to Subpart A...
16 CFR Figure 10 to Subpart A of... - Insulation Radiant Panel Test Data Log Format

Code of Federal Regulations, 2010 CFR

2010-01-01

... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Insulation Radiant Panel Test Data Log Format 10 Figure 10 to Subpart A of Part 1209 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION CONSUMER PRODUCT SAFETY ACT REGULATIONS INTERIM SAFETY STANDARD FOR CELLULOSE INSULATION The Standard Pt. 1209, Subpt. A, Fig. 10 Figure 10 to Subpart A...
16 CFR Figure 10 to Subpart A of... - Insulation Radiant Panel Test Data Log Format

Code of Federal Regulations, 2011 CFR

2011-01-01

... 16 Commercial Practices 2 2011-01-01 2011-01-01 false Insulation Radiant Panel Test Data Log Format 10 Figure 10 to Subpart A of Part 1209 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION CONSUMER PRODUCT SAFETY ACT REGULATIONS INTERIM SAFETY STANDARD FOR CELLULOSE INSULATION The Standard Pt. 1209, Subpt. A, Fig. 10 Figure 10 to Subpart A...
16 CFR Figure 10 to Subpart A of... - Insulation Radiant Panel Test Data Log Format

Code of Federal Regulations, 2012 CFR

2012-01-01

... 16 Commercial Practices 2 2012-01-01 2012-01-01 false Insulation Radiant Panel Test Data Log Format 10 Figure 10 to Subpart A of Part 1209 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION CONSUMER PRODUCT SAFETY ACT REGULATIONS INTERIM SAFETY STANDARD FOR CELLULOSE INSULATION The Standard Pt. 1209, Subpt. A, Fig. 10 Figure 10 to Subpart A...
The Blind Spot: Re-Educating Ourselves about Visual Images

ERIC Educational Resources Information Center

Farkas, N.; Donnelly, K. M.; Henriksen, P. N.; Ramsier, R. D.

2004-01-01

A simple blind spot activity has been devised to help students discard misconceptions about image formation by lenses. Our hands-on experiment, in which students determine the location and size of their blind spots, is suitable for various age groups at different educational levels. The activity provides an opportunity to teach students how to…
78 FR 75550 - Tests Determined To Be Suitable for Use in the National Reporting System for Adult Education

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-12

... Student Assessment Systems (CASAS) Life Skills Math Assessments--Application of Mathematics (Secondary... Proficiency Test (MAPT) for Math. This test is approved for use through a computer-adaptive delivery format...: www.wonderlic.com . (2) General Assessment of Instructional Needs (GAIN)--Test of Math Skills. Forms A...
77 FR 46749 - Tests Determined To Be Suitable for Use in the National Reporting System for Adult Education

Federal Register 2010, 2011, 2012, 2013, 2014

2012-08-06

... Student Assessment Systems (CASAS) Life Skills Math Assessments--Application of Mathematics (Secondary... Proficiency Test (MAPT) for Math. This test is approved for use through a computer-adaptive delivery format...) Employability Competency System (ECS) Math Assessments--Workforce Learning Systems (WLS). Forms 11, 12, 13, 14...
Reforming system of professional training of future specialists by taking into account production automation requirements

NASA Astrophysics Data System (ADS)

Saigushev, N. Y.; Vedeneeva, O. A.; Melekhova, Yu B.

2018-05-01

The accelerating scientific development, equipment upgrade, emergence of new technologies and intensive growth and use of nano-, robotic, bio- and other perspective technologies require the formation of scientific and technological potential in Russia which is suitable for present-day challenges of the global technological growth.
Elementary and Secondary School Students' Perceptions of Teachers' Classroom Management Competencies

ERIC Educational Resources Information Center

Kalin, Jana; Peklaj, Cirila; Pecjak, Sonja; Levpušcek, Melita Puklek; Zuljan, Milena Valencic

2017-01-01

Teachers with proper training in knowledge transfer to different students, in the creation of suitable learning conditions, the motivation of students for active cooperation and peer learning, in the formation of classroom community, as well as independent and responsible personalities, can provide quality education. Teacher's classroom management…
The Effect of Sample Size on Parametric and Nonparametric Factor Analytical Methods

ERIC Educational Resources Information Center

Kalkan, Ömür Kaya; Kelecioglu, Hülya

2016-01-01

Linear factor analysis models used to examine constructs underlying the responses are not very suitable for dichotomous or polytomous response formats. The associated problems cannot be eliminated by polychoric or tetrachoric correlations in place of the Pearson correlation. Therefore, we considered parameters obtained from the NOHARM and FACTOR…
Using Netbooks to Support Mobile Learners' Investigations across Activities and Places

ERIC Educational Resources Information Center

Gaved, Mark; Collins, Trevor; Mulholland, Paul; Kerawalla, Lucinda; Jones, Ann; Scanlon, Eileen; Littleton, Karen; Blake, Canan; Petrou, Marilena; Clough, Gill; Twiner, Alison

2010-01-01

We explore how small-format laptops ("netbooks") have been used within evidence-based investigations undertaken by secondary school students, to what extent these are suitable for effectively supporting learners across different locations and contexts, and their implications for open learning. Over the course of seven trials with 300…
Holographic data storage crystals for the LDEF

NASA Technical Reports Server (NTRS)

Callen, W. Russell; Gaylord, Thomas K.

1993-01-01

Crystals of lithium niobate were passively exposed to the space environment of the Long Duration Exposure Facility (LDEF). Three of the four crystals contained volume holograms. Although the crystals suffered the surface damage characteristic of that suffered by other components on the Georgia Tech tray, the crystals remained suitable for the formation of volume holograms.
Audiovisual Materials for the Engineering Technologies.

ERIC Educational Resources Information Center

O'Brien, Janet S., Comp.

A list of audiovisual materials suitable for use in engineering technology courses is provided. This list includes titles of 16mm films, 8mm film loops, slidetapes, transparencies, audio tapes, and videotapes. Given for each title are: source, format, length of film or tape or number of slides or transparencies, whether color or black-and-white,…
Progress Monitoring in Grade 5 Science for Low Achievers

ERIC Educational Resources Information Center

Vannest, Kimberly J.; Parker, Richard; Dyer, Nicole

2011-01-01

This article presents procedures and results from a 2-year project developing science key vocabulary (KV) short tests suitable for progress monitoring Grade 5 science in Texas public schools using computer-generated, -administered, and -scored assessments. KV items included KV definitions and important usages in a multiple-choice cloze format. A…
Improved interface growth and enhanced flux pinning in YBCO films deposited on an advanced IBAD-MgO based template

NASA Astrophysics Data System (ADS)

Khan, M. Z.; Zhao, Y.; Wu, X.; Malmivirta, M.; Huhtinen, H.; Paturi, P.

2018-02-01

The growth mechanism is studied from the flux pinning point of view in small-scale YBa2Cu3O6+x (YBCO) thin films deposited on a polycrystalline hastelloy with advanced IBAD-MgO based buffer layer architecture. When compared the situation with YBCO films grown on single crystal substrates, the most critical issues that affect the suitable defect formation and thus the optimal vortex pinning landscape, have been studied as a function of the growth temperature and the film thickness evolution. We can conclude that the best critical current property in a wide applied magnetic field range is observed in films grown at relatively low temperature and having intermediate thickness. These phenomena are linked to the combination of the improved interface growth, to the film thickness related crystalline relaxation and to the formation of linear array of edge dislocations that forms the low-angle grain boundaries through the entire film thickness and thus improve the vortex pinning properties. Hence, the optimized buffer layer structure proved to be particularly suitable for new coated conductor solutions.
Medical applications for pharmacists using mobile devices.

PubMed

Aungst, Timothy Dy

2013-01-01

Mobile devices (eg, smartphones, tablet computers) have become ubiquitous and subsequently there has been a growth in mobile applications (apps). Concurrently, mobile devices have been integrated into health care practice due to the availability and quality of medical apps. These mobile medical apps offer increased access to clinical references and point-of-care tools. However, there has been little identification of mobile medical apps suitable for the practice of pharmacy. To address the shortage of recommendations of mobile medical apps for pharmacists in daily practice. Mobile medical apps were identified via the iTunes and Google Play Stores via the "Medical" app categories and key word searches (eg, drug information, medical calculators). In addition, reviews provided by professional mobile medical app review websites were used to identify apps. Mobile medical apps were included if they had been updated in the previous 3 months, were available in the US, used evidence-based information or literature support, had dedicated app support, and demonstrated stability. Exclusion criteria included apps that were not available in English, had advertisement bias, used nonreferenced sources, were available only via an institution-only subscription, and were web-based portals. Twenty-seven mobile apps were identified and reviewed that involved general pharmacy practice, including apps that involved drug references, clinical references, medical calculators, laboratory references, news and continuing medical education, and productivity. Mobile medical apps have a variety of features that are beneficial to pharmacy practice. Individual clinicians should consider several characteristics of these apps to determine which are suitable to incorporate into their daily practice.
Hydrology of coal-lease areas near Durango, Colorado

USGS Publications Warehouse

Brooks, Tom

1985-01-01

The U.S. Bureau of Land Management leases Federal lands and minerals for coal mining near Durango, Colorado. This report addresses the hydrologic suitability of those lands for coal leasing; the report describes the general hydrology of the Durango area and, more specifically, the hydrology of the Stollsteimer Creek study area 32 miles east of the Durango and the Hay Gulch study area, 12 miles southwest of Durango. The most productive aquifers in the Durango study area are Quaternary alluvium and the tertiary Animas Formation. Water wells completed in alluvium typically yield 5 to 20 gallons/min; wells completed is the Animas Formation yield as much as 50 gallons/min. Water quality in these aquifers is variable, but it generally is suitable for domestic use. The coal-bearing Cretaceous Fruitland and Menefee Formations are mined by surface methods at the Chimney Rock Mine in the Stollsteimer Creek study area and by underground methods at the National King Coal Mine in the Hay Gulch study area. Effects of surface mining in the Stollsteimer Creek area are: (1) Dewatering of an alluvial aquifer; and (2) Local degradation of alluvium water quality by spoil-pile effluent. Effects of underground mining in the Hay Gulch area are: (1) Introduction of water with greater dissolved-solids concentrations into the upper Hay Gulch alluvium from mine runoff; (2) Subsidence fracturing which could dewater streams and the alluvial aquifer. (USGS)
Hardfacing of duplex stainless steel using melting and diffusion processes

NASA Astrophysics Data System (ADS)

Lailatul, H.; Maleque, M. A.

2017-03-01

Duplex stainless steel (DSS) is a material with high potential successes in many new applications such as rail car manufacturing, automotive and chemical industries. Although DSS is widely used in various industries, this material has faced wear and hardness problems which obstruct a wider capability of this material and causes problems in current application. Therefore, development of surface modification has been introduced to produce hard protective layer or coating on DSS. The main aim of this work is to brief review on hard surface layer formation on DSS using melting and diffusion processes. Melting technique using tungsten inert gas (TIG) torch and diffusion technique using gas nitriding are the effective process to meet this requirement. The processing route plays a significant role in developing the hard surface layer for any application with effective cost and environmental factors. The good understanding and careful selection of processing route to form products are very important factors to decide the suitable techniques for surface engineering treatment. In this paper, an attempt is also made to consolidate the important research works done on melting and diffusion techniques of DSS in the past. The advantages and disadvantages between melting and diffusion technique are presented for better understanding on the feasibility of hard surface formation on DSS. Finally, it can be concluded that this work will open an avenue for further research on the application of suitable process for hard surface formation on DSS.
Parents Say the Darndest Things.

ERIC Educational Resources Information Center

Harden, G. Daniel

1993-01-01

A former school principal describes a dozen situations involving parents' excuses for their children's bad behavior or complaints about school procedures and supervisory practices. Suitable administrator responses are given concerning homework completion, "unreasonable" school expectations, divergent interpretations of student attitudes and…
12 CFR 1011.20 - Unlawful sales practices-regulatory provisions.

Code of Federal Regulations, 2013 CFR

2013-01-01

... lot is suitable for a septic tank operation or there is reasonable assurance that the lot can be served by a central sewage system; (3) The lot is legally accessible; and (4) The lot is free from...

12 CFR 1011.20 - Unlawful sales practices-regulatory provisions.

Code of Federal Regulations, 2012 CFR

2012-01-01

... lot is suitable for a septic tank operation or there is reasonable assurance that the lot can be served by a central sewage system; (3) The lot is legally accessible; and (4) The lot is free from...
12 CFR 1011.20 - Unlawful sales practices-regulatory provisions.

Code of Federal Regulations, 2014 CFR

2014-01-01

... lot is suitable for a septic tank operation or there is reasonable assurance that the lot can be served by a central sewage system; (3) The lot is legally accessible; and (4) The lot is free from...
Promoting the exotic pet practice.

PubMed

Harris, Don J

2005-09-01

The marketing and promotion of an exotic pet veterinary practice allows the use of strategies that are not necessarily available in other veterinary disciplines. The advantage that an exotics practice enjoys is that it is able to capitalize not only on the unique nature of the species being attended but also on the specialized features of the hospital itself that make it specifically appropriate in caring for exotic pets. Before marketing, however, comes the responsibility that the practice live up to the claims made in promotional materials. A practice cannot ethically be presented as an "exotics" practice if it is nothing more than a dog and cat facility that is willing to attend to exotic pets. It is the competence of the veterinary staff and the appropriateness of the facility that determines the suitability of the practice for exotics management.
Method of Analysis by the U.S. Geological Survey California District Sacramento Laboratory?Determination of Trihalomethane Formation Potential, Method Validation, and Quality-Control Practices

USGS Publications Warehouse

Crepeau, Kathryn L.; Fram, Miranda S.; Bush, Noel

2004-01-01

An analytical method for the determination of the trihalomethane formation potential of water samples has been developed. The trihalomethane formation potential is measured by dosing samples with chlorine under specified conditions of pH, temperature, incubation time, darkness, and residual-free chlorine, and then analyzing the resulting trihalomethanes by purge and trap/gas chromatography equipped with an electron capture detector. Detailed explanations of the method and quality-control practices are provided. Method validation experiments showed that the trihalomethane formation potential varies as a function of time between sample collection and analysis, residual-free chlorine concentration, method of sample dilution, and the concentration of bromide in the sample.
Beginning to explore the experience of managing a direct payment for someone with dementia: The perspectives of suitable people and adult social care practitioners.

PubMed

Laybourne, Anne H; Jepson, Marcus J; Williamson, Toby; Robotham, Dan; Cyhlarova, Eva; Williams, Val

2016-01-01

Following legal improvements made around mental capacity together with the Health and Social Care Act, it is now possible for a direct payment to be paid to a 'Suitable Person' to manage on someone's behalf to purchase directly care and support services. People with dementia are a key group affected by this change in England of adult social care. We interviewed nine social care practitioners and seven Suitable People for people with dementia across five English local authorities to begin to examine their experiences of this new method of social care provision. Findings from thematic analyses suggest positive outcomes and multiple beneficiaries, but some challenges: potentially inappropriate processes, support planning, divergence in attitudes towards care and support outcomes. Implications for practice include obfuscation of recipients' and Suitable People's best interests and supporting practitioners to explore fully clients' aspirations for care and support. © The Author(s) 2014.
The availability of public information for insurance risk decision-making in the UK

NASA Astrophysics Data System (ADS)

Davis, Nigel; Gibbs, Mark; Chadwick, Ben; Foote, Matthew

2010-05-01

At present, there is a wealth of hazard and exposure data which cannot or is not being full used by risk modelling community. The reasons for this under-utilisation of data are many: restrictive and complex data policies and pricing, risks involved in information sharing, technological shortcomings, and variable resolution of data, particularly with catastrophe models only recently having been adjusted to consume high-resolution exposure data. There is therefore an urgent need for the development of common modelling practices and applications for climate and geo-hazard risk assessment, all of which would be highly relevant to public policy, disaster risk management and financial risk transfer communities. This paper will present a methodology to overcome these obstacles and to review the availability of hazard data at research institutions in a consistent format. Such a methodology would facilitate the collation of hazard and other auxiliary data, as well as present data within a geo-spatial framework suitable for public and commercial use. The methodology would also review the suitability of datasets and how these could be made more freely available in conjunction with other research institutions in order to present a consistent data standard. It is clear that an understanding of these different issues of data and data standards have significant ramifications when used in Natural Hazard Risk Assessment. Scrutinising the issue of data standards also allows the data to be evaluated and re-evaluated for its gaps, omissions, fitness, purpose, availability and precision. Not only would there be a quality check on data, but it would also help develop and fine-tune the tools used for decision-making and assessment of risk.
Assessing and Validating an Educational Resource Package for Health Professionals to Improve Smoking Cessation Care in Aboriginal and Torres Strait Islander Pregnant Women.

PubMed

Bar-Zeev, Yael; Bovill, Michelle; Bonevski, Billie; Gruppetta, Maree; Reath, Jennifer; Gould, Gillian S

2017-09-29

Australian Aboriginal pregnant women have a high smoking prevalence (45%). Health professionals lack adequate educational resources to manage smoking. Resources need to be tailored to ensure saliency, cultural-sensitivity and account for diversity of Indigenous populations. As part of an intervention to improve health professionals' smoking cessation care in Aboriginal pregnant women, a resource package was developed collaboratively with two Aboriginal Medical Services. The purpose of this study was to assess and validate this resource package. A multi-centred community-based participatory 4-step process (with three Aboriginal Medical Services from three Australian states), included: (1) Scientific review by an expert panel (2) 'Suitability of Materials' scoring by two Aboriginal Health Workers (3) Readability scores (4) Focus groups with health professionals. Content was analysed using six pre-determined themes (attraction, comprehension, self-efficacy, graphics and layout, cultural acceptability, and persuasion), with further inductive analysis for emerging themes. Suitability of Material scoring was adequate or superior. Average readability was grade 6.4 for patient resources (range 5.1-7.2), and 9.8 for health provider resources (range 8.5-10.6). Emergent themes included 'Getting the message right'; 'Engaging with family'; 'Needing visual aids'; and 'Requiring practicality under a tight timeframe'. Results were presented back to a Stakeholder and Consumer Aboriginal Advisory Panel and resources were adjusted accordingly. This process ensured materials used for the intervention were culturally responsive, evidence-based and useful. This novel formative evaluation protocol could be adapted for other Indigenous and culturally diverse interventions. The added value of this time-consuming and costly process is yet to be justified in research, and might impact the potential adaption by other projects.
Multilevel summation method for electrostatic force evaluation.

PubMed

Hardy, David J; Wu, Zhe; Phillips, James C; Stone, John E; Skeel, Robert D; Schulten, Klaus

2015-02-10

The multilevel summation method (MSM) offers an efficient algorithm utilizing convolution for evaluating long-range forces arising in molecular dynamics simulations. Shifting the balance of computation and communication, MSM provides key advantages over the ubiquitous particle–mesh Ewald (PME) method, offering better scaling on parallel computers and permitting more modeling flexibility, with support for periodic systems as does PME but also for semiperiodic and nonperiodic systems. The version of MSM available in the simulation program NAMD is described, and its performance and accuracy are compared with the PME method. The accuracy feasible for MSM in practical applications reproduces PME results for water property calculations of density, diffusion constant, dielectric constant, surface tension, radial distribution function, and distance-dependent Kirkwood factor, even though the numerical accuracy of PME is higher than that of MSM. Excellent agreement between MSM and PME is found also for interface potentials of air–water and membrane–water interfaces, where long-range Coulombic interactions are crucial. Applications demonstrate also the suitability of MSM for systems with semiperiodic and nonperiodic boundaries. For this purpose, simulations have been performed with periodic boundaries along directions parallel to a membrane surface but not along the surface normal, yielding membrane pore formation induced by an imbalance of charge across the membrane. Using a similar semiperiodic boundary condition, ion conduction through a graphene nanopore driven by an ion gradient has been simulated. Furthermore, proteins have been simulated inside a single spherical water droplet. Finally, parallel scalability results show the ability of MSM to outperform PME when scaling a system of modest size (less than 100 K atoms) to over a thousand processors, demonstrating the suitability of MSM for large-scale parallel simulation.
The Handover Toolbox: a knowledge exchange and training platform for improving patient care.

PubMed

Drachsler, Hendrik; Kicken, Wendy; van der Klink, Marcel; Stoyanov, Slavi; Boshuizen, Henny P A; Barach, Paul

2012-12-01

Safe and effective patient handovers remain a global organisational and training challenge. Limited evidence supports available handover training programmes. Customisable training is a promising approach to improve the quality and sustainability of handover training and outcomes. We present a Handover Toolbox designed in the context of the European HANDOVER Project. The Toolbox aims to support physicians, nurses, individuals in health professions training, medical educators and handover experts by providing customised handover training tools for different clinical needs and contexts. The Handover Toolbox uses the Technology Enhanced Learning Design Process (TEL-DP), which encompasses user requirements analysis; writing personas; group concept mapping; analysis of suitable software; plus, minus, interesting rating; and usability testing. TEL-DP is aligned with participatory design approaches and ensures development occurs in close collaboration with, and engagement of, key stakeholders. Application of TEL-DP confirmed that the ideal formats of handover training differs for practicing professionals versus individuals in health profession education programmes. Training experts from different countries differed in their views on the optimal content and delivery of training. Analysis of suitable software identified ready-to-use systems that provide required functionalities and can be further customised to users' needs. Interest rating and usability testing resulted in improved usability, navigation and uptake of the Handover Toolbox. The design of the Handover Toolbox was based on a carefully led stakeholder participatory design using the TEL-DP approach. The Toolbox supports a customisable learning approach that allows trainers to design training that addresses the specific information needs of the various target groups. We offer recommendations regarding the application of the Handover Toolbox to medical educators.
Inhibitory effect of Ti-Ag alloy on artificial biofilm formation.

PubMed

Nakajo, Kazuko; Takahashi, Masatoshi; Kikuchi, Masafumi; Takada, Yukyo; Okuno, Osamu; Sasaki, Keiichi; Takahashi, Nobuhiro

2014-01-01

Titanium-silver (Ti-Ag) alloy has been improved for machinability and mechanical properties, but its anti-biofilm properties have not been elucidated yet. Thus, this study aimed to evaluate the effects of Ti-Ag alloy on biofilm formation and bacterial viability in comparison with pure Ti, pure Ag and silver-palladium (Ag-Pd) alloy. Biofilm formation on the metal plates was evaluated by growing Streptococcus mutans and Streptococcus sobrinus in the presence of metal plates. Bactericidal activity was evaluated using a film contact method. There were no significant differences in biofilm formation between pure Ti, pure Ag and Ag-Pd alloy, while biofilm amounts on Ti-20% Ag and Ti-25% Ag alloys were significantly lower (p<0.05). In addition, Ti-Ag alloys and pure Ti were not bactericidal, although pure Ag and Ag-Pd alloy killed bacteria. These results suggest that Ti-20% Ag and Ti-25% Ag alloys are suitable for dental material that suppresses biofilm formation without disturbing healthy oral microflora.
Effect of beer marinades on formation of polycyclic aromatic hydrocarbons in charcoal-grilled pork.

PubMed

Viegas, Olga; Yebra-Pimentel, Iria; Martínez-Carballo, Elena; Simal-Gandara, Jesus; Ferreira, Isabel M P L V O

2014-03-26

The effect of marinating meat with Pilsner beer, nonalcoholic Pilsner beer, and Black beer (coded respectively PB, P0B, and BB) on the formation of polycyclic aromatic hydrocarbons (PAHs) in charcoal-grilled pork was evaluated and compared with the formation of these compounds in unmarinated meat. Antiradical activity of marinades (DPPH assay) was assayed. BB exhibited the strongest scavenging activity (68.0%), followed by P0B (36.5%) and PB (29.5%). Control and marinated meat samples contained the eight PAHs named PAH8 by the EFSA and classified as suitable indicators for carcinogenic potency of PAHs in food. BB showed the highest inhibitory effect in the formation of PAH8 (53%), followed by P0B (25%) and PB (13%). The inhibitory effect of beer marinades on PAH8 increased with the increase of their radical-scavenging activity. BB marinade was the most efficient on reduction of PAH formation, providing a proper mitigation strategy.
Formation of nanocrystalline diamond in polymer like carbon films deposited by plasma CVD.

PubMed

Bhaduri, A; Chaudhuri, P

2009-09-01

Conventional plasma enhanced chemical vapour deposition (PECVD) method is generally not suitable for the growth of nanocrystalline diamond (NCD) films. However, our study shows that conditions favourable for powder formation help to grow large amount of nanocrystallites in conventional PECVD. With CH4 as the carbon source gas, dilution with Ar and moderate (50 W) rf power enhances formations of powders (nanoparticles) and C2 dimers within the plasma. On the other hand, with pure CH4 or with hydrogen diluted CH4, powder formation as also NCD growth is hindered. It is proposed that the nanoparticles formed in the plasma act as the "islands" while the C2 dimers are the "seeds" for the NCD growth. The structure of the films deposited on the grounded anode under different conditions of dilution has been studied. It is observed that with high Ar dilution the films contain NCD embedded in polymer like carbon (PLC) matrix.
Electrochemical deposition of layered copper thin films based on the diffusion limited aggregation

PubMed Central

Wei, Chenhuinan; Wu, Guoxing; Yang, Sanjun; Liu, Qiming

2016-01-01

In this work layered copper films with smooth surface were successfully fabricated onto ITO substrate by electrochemical deposition (ECD) and the thickness of the films was nearly 60 nm. The resulting films were characterized by SEM, TEM, AFM, XPS, and XRD. We have investigated the effects of potential and the concentration of additives and found that 2D dendritic-like growth process leaded the formation of films. A suitable growth mechanism based on diffusion limited aggregation (DLA) mechanism for the copper films formation is presented, which are meaningful for further designing homogeneous and functional films. PMID:27734900
The (Un)Lonely Planet Guide: Formation and Evolution of Planetary Systems from a ``Blue Dots'' Perspective

NASA Astrophysics Data System (ADS)

Meyer, M. R.

2010-10-01

In this contribution I summarize some recent successes, and focus on remaining challenges, in understanding the formation and evolution of planetary systems in the context of the Blue Dots initiative. Because our understanding is incomplete, we cannot yet articulate a design reference mission engineering matrix suitable for an exploration mission where success is defined as obtaining a spectrum of a potentially habitable world around a nearby star. However, as progress accelerates, we can identify observational programs that would address fundamental scientific questions through hypothesis testing such that the null result is interesting.
Ab-initio calculation for cation vacancy formation energy in anti-fluorite structure

NASA Astrophysics Data System (ADS)

Saleel, V. P. Saleel Ahammad; Chitra, D.; Veluraja, K.; Eithiraj, R. D.

2018-04-01

Lithium oxide (Li2O) has been suggested as a suitable breeder blanket material for fusion reactors. Li+ vacancies are created by neutron irradiation, forming bulk defect complex whose extra character is experimentally unclear. We present a theoretical study of Li2O using density functional theory (DFT) with a plane-wave basis set. The generalized gradient approximation (GGA) and local-density approximation (LDA) were used for exchange and correlation. Here we address the total energy for defect free, cation defect, cation vacancy and vacancy formation energy in Li2O crystal in anti-fluorite structure.
Petrophysical evaluation of subterranean formations

DOEpatents

Klein, James D; Schoderbek, David A; Mailloux, Jason M

2013-05-28

Methods and systems are provided for evaluating petrophysical properties of subterranean formations and comprehensively evaluating hydrate presence through a combination of computer-implemented log modeling and analysis. Certain embodiments include the steps of running a number of logging tools in a wellbore to obtain a variety of wellbore data and logs, and evaluating and modeling the log data to ascertain various petrophysical properties. Examples of suitable logging techniques that may be used in combination with the present invention include, but are not limited to, sonic logs, electrical resistivity logs, gamma ray logs, neutron porosity logs, density logs, NRM logs, or any combination or subset thereof.
Preliminary Study for Measurement of Shear Stress and Hemocompatibility Using Commercialized Lab on a Chip.

PubMed

Lee, Joshua; Kim, In Gi; Oh, Young Min; Park, Chan-Hee; Kim, Cheol Sang

2018-02-01

We have investigated the effect of flow rate on shear stress and in turn thrombus formation on a lab-on-a-chip with a microchannel that is suitable for cell culture and growth. Using a combination of Arduino UNO, Arduino Motor Shield, and a SERVO stepper motor, we created a pump system that closely mimics the in vivo conditions of the human body. With this system, we achieved continuous flow of blood and observed attached platelets at the bottom of the collagen coated microslide, confirming that with shear stress, thrombus formation increases.
75 FR 14401 - Amendment of Certain of the Commission's Rules of Practice and Procedure and Rules of Commission...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-25

... were created, such as Microsoft Excel, Microsoft Word, or Microsoft PowerPoint (``native format'')? We... (condensed) or expanded (detailed) format Export search results to Excel or PDF As noted above, system is...., Microsoft Word ``.doc'' format or non-copy protected text- searchable ``.pdf'' format)? Should submissions...
Online Learning in Divorce: How the Formation of a Community of Practice in a Divorce Support Website Enables and Inhibits Learning

ERIC Educational Resources Information Center

Paechter, Carrie

2012-01-01

This article is about the informal learning that took place in an online divorce support and advice forum. In it, the author discusses the formation of a community of practice among the members during the first nine months of the site's operation. The author shows how the key markers of mutual engagement, joint enterprise and shared repertoire…
From the Teachers' Eyes: An Ethnographic-Case Study on Developing Models of Informal Formative Assessments (IFA) and Understanding the Challenges to Effective Implementation in Science Classrooms

ERIC Educational Resources Information Center

Sezen, Asli

2011-01-01

The emphasis on socio-cultural theories of learning has required the understanding of multi-dimensional, dynamic and social nature of acquiring the scientific knowledge and practices. Recent policy documents suggest a focus on formative and dynamic assessment practices that will help understand and improve the complex nature of scientific learning…

Undergraduate computational physics projects on quantum computing

NASA Astrophysics Data System (ADS)

Candela, D.

2015-08-01

Computational projects on quantum computing suitable for students in a junior-level quantum mechanics course are described. In these projects students write their own programs to simulate quantum computers. Knowledge is assumed of introductory quantum mechanics through the properties of spin 1/2. Initial, more easily programmed projects treat the basics of quantum computation, quantum gates, and Grover's quantum search algorithm. These are followed by more advanced projects to increase the number of qubits and implement Shor's quantum factoring algorithm. The projects can be run on a typical laptop or desktop computer, using most programming languages. Supplementing resources available elsewhere, the projects are presented here in a self-contained format especially suitable for a short computational module for physics students.
PROCESS OF PREPARING A FLUORIDE OF TETRAVLENT URANIUM

DOEpatents

Wheelwright, E.J.

1959-02-17

A method is described for producing a fluoride salt pf tetravalent uranium suitable for bomb reduction to metallic uranium. An aqueous solution of uranyl nitrate is treated with acetic acid and a nitrite-suppressor and then contacted with metallic lead whereby uranium is reduced from the hexavalent to the tetravalent state and soluble lead acetate is formed. Sulfate ions are then added to the solution to precipitate and remove the lead values. Hydrofluoric acid and alkali metal ions are then added causing the formation of an alkali metal uranium double-fluoride in which the uranium is in the tetravalent state. After recovery, this precipitate is suitable for using in the limited production of metallic uranium.
Challenges in enzymatic route of mannitol production.

PubMed

Bhatt, Sheelendra Mangal; Mohan, Anand; Srivastava, Suresh Kumar

2013-01-01

Mannitol is an important biochemical often used as medicine and in food sector, yet its biotechnological is not preffered in Industry for large scale production, which may be due to the multistep mechanism involved in hydrogenation and reduction. This paper is a comparative preview covering present chemical and biotechnological approaches existing today for mannitol production at industrial scale. Biotechnological routes are suitable for adaptation at industrial level for mannitol production, and whatever concerns are there had been discussed in detail, namely, raw materials, broad range of enzymes with high activity at elevated temperature suitable for use in reactor, cofactor limitation, reduced by-product formation, end product inhibition, and reduced utilization of mannitol for enhancing the yield with maximum volumetric productivity.
DOE Office of Scientific and Technical Information (OSTI.GOV)

Ngunjiri, P.G.

The aim for this research is to review environmental impact assessment (EIA) practices in sub-Saharan Africa, drawing upon appropriate theoretical and methodological work on EIA. This study uses a comparative evaluation method to examine the extent of environmental impact assessment (EIA) in project analysis. It uses site and services low cost housing projects from Kenya. The research has three major components: (1) review of environmental practice in Sub-Saharan Africa through literature review and case studies; (2) review of general literature on EIA as practiced by international agencies and developed countries; and (3) formulation of more suitable guidelines for EIA proceduresmore » in Sub-Saharan Africa.« less
Surgery and Research: A Practical Approach to Managing the Research Process

PubMed Central

Swiatek, Peter R.; Chung, Kevin C.; Mahmoudi, Elham

2016-01-01

Following a practical project management method is essential in completing a research project on time and within budget. Although this concept is well developed in the business world, it has yet to be explored in academic surgical research. Defining and adhering to a suitable workflow would increase portability, reusability, and therefore, efficiency of the research process. In this article, we briefly review project management techniques. We specifically underline four main steps of project management: (1) definition and organization, (2) planning, (3) execution, and (4) evaluation, using practical examples from our own multidisciplinary plastic surgery research team. PMID:26710037
A New Approach to Health Services and Pharmacy in Cuba.

PubMed

Sánchez, Alina M

2015-12-01

In December 17, 2014, U.S. President Barack Obama surprised the world by announcing his intention to enter into negotiations aimed at reestablishing diplomatic relations with Cuba. Since then, expectations and interest regarding the health system of that country have increased. This report focuses on the Cuban health and pharmacy systems from a practical and educational standpoint. Pharmaceutical services, strengths, opportunities, and challenges are described. Cuba's new trends toward patient-centered care are analyzed to provide insights for developing pharmaceutical care practice and implementing policies suitable for practice in all health care settings. © 2015 Pharmacotherapy Publications, Inc.
Prospects for developing stock - Water supplies from wells in northeastern Garfield County, Montana

USGS Publications Warehouse

Van Lewen, M. C.; King, Norman Julius

1971-01-01

Ground-water resources in northeastern Garfield County, Mont., afford a practical and reliable source of stock water on the intermingled public and private grazing lands that together comprise an area of about 1,200 square miles. The oldest formation exposed in the area is the relatively thick and impermeable Bearpaw Shale of Cretaceous .age. Overlying the Bearpaw Shale in succession are the Fox Hills Sandstone and Hell Creek Formation of Cretaceous age, the Fort Union Formation of Tertiary age, and thin glacial deposits .and alluvium of Quaternary age. All but the Bearpaw Shale and the glacial deposits are potential aquifers. Published geologic maps were found to be satisfactory after fitting contacts to the topographic base. Mapping, therefore, was limited mainly to outlining on aerial photographs the alluvial deposits in the stream valleys. The major structural feature is the Blood Creek syncline, the axis of which plunges eastward 10-15 feet per mile across the southern part of the area. Beds generally dip 15-25 feet per mile toward the synclinal axis. Water in bedrock aquifers is under artesian pressure, .and most wells in Big and Little Dry Creek valleys flow at the land surface. The only bedrock aquifer having appreciable areal extent is a sandstone 30-70 feet thick that has been mapped by previous investigators as the upper part of the Fox Hills Sandstone. This aquifer crops out in the northern and northwestern parts of the area and dips about 20 feet per mile southeastward beneath younger beds. Most wells in the northern half of the area obtain water from this sandstone at drilling depths of less than 200 feet. The depth to the Fox Hills Sandstone increases progressively southward, and most wells south of Woody Creek obtain water from irregularly distributed sandstone beds and lenses in the overlying Hell Creek and Fort Union Formations. The depth at which water may be obtained from these beds is not accurately predictable, but the depth seldom exceeds 300 feet. The results of the investigation indicate that the prospects for obtaining ample water for livestock from wells drilled into the bedrock formations are very favorable in most of the area. The average depth of bedrock wells in the area is 195 feet. Underflow in the alluvial deposits along all the larger stream valleys also affords a practical source of stock water. Chemical analyses of samples collected at 43 wells and three springs show the water quality to be generally poor. Water from bedrock aquifer contains 530-5,340 milligrams per liter total dissolved solids, whereas water from alluvium contains less than 1,500 milligrams per liter total dissolved solids. The predominant constituents are sodium, bicarbonate, and sulfate. So far as could be determined, all water supplies in the area are suitable for livestock.
Leadership in the tug of war between what is desired, what is possible, and what is allowed - knowledge and ideas gained from 25 years of senior management experience in radiology.

PubMed

Busch, H P

2014-12-01

A decisive factor in the difference between the success and failure of the development of practices and hospitals is the quality and number of suitable staff members, together with their motivation to devote their skills to the particular organization. Senior management is not required or paid to paint dramatic pictures of current and future problems, but to achieve success within given framework conditions (e. g. health funding, local circumstances, suitability of senior staff). Success must be measurable and verifiable within the dimensions of medical quality, service quality and economic viability - but also regarding staff loyalty and staff recruitment. This paper is intended to encourage critical reflection on structures and roles in the organization of hospitals and practices on the basis of knowledge and ideas gained from 25 years of senior management experience. The content of this article will apply only in part or not at all for a number of successful hospitals and practices. The aim of this paper is to increase that proportion. © Georg Thieme Verlag KG Stuttgart · New York.
Multijurisdictional practice and the health lawyer: will your practice benefit from the new ABA model rules of professional conduct?

PubMed

Pomerance, Philip L

2004-01-01

At the end of the twentieth century, bar scholars and regulators were reexamining two traditionally improper aspects of legal practice. The first was the multidisciplinary practice of law, which would permit lawyers to offer accounting and other professional services to their clients, and allow lawyers to share fees with non-lawyers. The second was the multijurisdictional practice of law, which would permit a lawyer licensed in one jurisdiction to practice law in other jurisdiction in which he was not admitted to the bar. Enron and other corporate scandals deflated the movement towards multidisciplinary practice, but the movement to allow multijurisdictional practice bore some limited, yet important, results. This Article argues that the American Bar Association's new Model Rules 5.5 and 8.5, which broaden the ability of healthcare lawyers to practice outside of the states in which they are admitted, are a suitable accommodation to today's mode of practice, while still preserving the states' ability to regulate lawyers and protect clients.
Pagan Biology at the Halloween Hop

ERIC Educational Resources Information Center

Lock, Roger

2011-01-01

Send your pupils into the autumn term half-term holiday with a task that requires them to explore more about the biology associated with Halloween. This article offers a fun approach, with a pub quiz format based on bats, skeletons, pumpkins and witches, that is suitable for lessons following the end-of-topic test, for STEM clubs or for PTA…
Alloys of clathrate allotropes for rechargeable batteries

DOEpatents

Chan, Candace K; Miller, Michael A; Chan, Kwai S

2014-12-09

The present disclosure is directed at an electrode for a battery wherein the electrode comprises clathrate alloys of silicon, germanium or tin. In method form, the present disclosure is directed at methods of forming clathrate alloys of silicon, germanium or tin which methods lead to the formation of empty cage structures suitable for use as electrodes in rechargeable type batteries.
Fire characteristics charts for fire behavior and U.S. fire danger rating

Treesearch

Faith Ann Heinsch; Pat Andrews

2010-01-01

The fire characteristics chart is a graphical method of presenting U.S. National Fire Danger Rating indices or primary surface or crown fire behavior characteristics. A desktop computer application has been developed to produce fire characteristics charts in a format suitable for inclusion in reports and presentations. Many options include change of scales, colors,...
Changing the Marks-Based Culture of Learning through Peer-Assisted Tutorials

ERIC Educational Resources Information Center

Alpay, E.; Cutler, P. S.; Eisenbach, S.; Field, A. J.

2010-01-01

We describe and evaluate an approach to student learning that aims to instil a culture of formative assessment based on peer-assisted learning. The idea is for suitably qualified undergraduates to assist in the running of weekly first-year tutorials. They mark submitted work, provide written and verbal feedback and lead problem-solving discussions…
An Investigation of Item Fit Statistics for Mixed IRT Models

ERIC Educational Resources Information Center

Chon, Kyong Hee

2009-01-01

The purpose of this study was to investigate procedures for assessing model fit of IRT models for mixed format data. In this study, various IRT model combinations were fitted to data containing both dichotomous and polytomous item responses, and the suitability of the chosen model mixtures was evaluated based on a number of model fit procedures.…
Method of forming dynamic membrane on stainless steel support

NASA Technical Reports Server (NTRS)

Gaddis, Joseph L. (Inventor); Brandon, Craig A. (Inventor)

1988-01-01

A suitable member formed from sintered, powdered, stainless steel is contacted with a nitrate solution of a soluble alkali metal nitrate and a metal such as zirconium in a pH range and for a time sufficient to effect the formation of a membrane of zirconium oxide preferably including an organic polymeric material such as polyacrylic acid.
Every Body Needs First Aid... A Manual for LEP Students [Draft] and Teacher Guide.

ERIC Educational Resources Information Center

Adachi, Patricia

The manual contains both student and teacher materials for instruction in basic physiology and first aid. The instructional materials were developed for use with limited-English-proficient high school students, but are suitable for high school first aid classes because of their simplified English and format, sequential organization, detailed table…
Development of the Terrestrial Planet Finder Coronagraph membrane V-grooves

NASA Technical Reports Server (NTRS)

Fang, Houfei; Ho, Timothy; Chen, Gun-Shing; Quijano, Ubaldo

2004-01-01

The Terrestrial Planet Finder mission will study all aaspecs of planets outside our solar system: from their formation and development in disks of dust and gas around newly forming stars to the presence of those planets orbiting the nearest stars; from the numbers at various sizes and places to their suitability as an abode for life.
76 FR 54721 - Parts and Accessories Necessary for Safe Operation: Brakes; Adjustment Limits

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-02

... instructions for submitting comments. Mail: Docket Management Facility: U.S. Department of Transportation, 1200... mail or hand delivery, submit them in an unbound format, no larger than 8\\1/2\\ by 11 inches, suitable... the Internet, you may view the docket online by visiting the Docket Management Facility in Room W12...
Professional Development through Formative Evaluation

ERIC Educational Resources Information Center

Nsibande, Rejoice; Garraway, James

2011-01-01

Formative evaluation and its associated methodology of reflection on practice are used extensively in academic staff development. In reflecting on formative evaluation processes in both more traditional and newer programmes conducted at a university of technology, a number of variables reported in the literature were observed to have influenced…
Discourse analysis in general practice: a sociolinguistic approach.

PubMed

Nessa, J; Malterud, K

1990-06-01

It is a simple but important fact that as general practitioners we talk to our patients. The quality of the conversation is of vital importance for the outcome of the consultation. The purpose of this article is to discuss a methodological tool borrowed from sociolinguistics--discourse analysis. To assess the suitability of this method for analysis of general practice consultations, the authors have performed a discourse analysis of one single consultation. Our experiences are presented here.

Rice management interventions to mitigate greenhouse gas emissions: a review.

PubMed

Hussain, Saddam; Peng, Shaobing; Fahad, Shah; Khaliq, Abdul; Huang, Jianliang; Cui, Kehui; Nie, Lixiao

2015-03-01

Global warming is one of the gravest threats to crop production and environmental sustainability. Rice, the staple food of more than half of the world's population, is the most prominent cause of greenhouse gas (GHG) emissions in agriculture and gives way to global warming. The increasing demand for rice in the future has deployed tremendous concerns to reduce GHG emissions for minimizing the negative environmental impacts of rice cultivation. In this review, we presented a contemporary synthesis of existing data on how crop management practices influence emissions of GHGs in rice fields. We realized that modifications in traditional crop management regimes possess a huge potential to overcome GHG emissions. We examined and evaluated the different possible options and found that modifying tillage permutations and irrigation patterns, managing organic and fertilizer inputs, selecting suitable cultivar, and cropping regime can mitigate GHG emissions. Previously, many authors have discussed the feasibility principle and the influence of these practices on a single gas or, in particular, in the whole agricultural sector. Nonetheless, changes in management practices may influence more than one gas at the same time by different mechanisms or sometimes their effects may be antagonistic. Therefore, in the present attempt, we estimated the overall global warming potential of each approach to consider the magnitude of its effects on all gases and provided a comprehensive assessment of suitable crop management practices for reducing GHG emissions in rice culture.
Use of the Ion PGM and the GeneReader NGS Systems in Daily Routine Practice for Advanced Lung Adenocarcinoma Patients: A Practical Point of View Reporting a Comparative Study and Assessment of 90 Patients.

PubMed

Heeke, Simon; Hofman, Véronique; Long-Mira, Elodie; Lespinet, Virginie; Lalvée, Salomé; Bordone, Olivier; Ribeyre, Camille; Tanga, Virginie; Benzaquen, Jonathan; Leroy, Sylvie; Cohen, Charlotte; Mouroux, Jérôme; Marquette, Charles Hugo; Ilié, Marius; Hofman, Paul

2018-03-21

Background : With the integration of various targeted therapies into the clinical management of patients with advanced lung adenocarcinoma, next-generation sequencing (NGS) has become the technology of choice and has led to an increase in simultaneously interrogated genes. However, the broader adoption of NGS for routine clinical practice is still hampered by sophisticated workflows, complex bioinformatics analysis and medical interpretation. Therefore, the performance of the novel QIAGEN GeneReader NGS system was compared to an in-house ISO-15189 certified Ion PGM NGS platform. Methods : Clinical samples from 90 patients (60 Retrospectively and 30 Prospectively) with lung adenocarcinoma were sequenced with both systems. Mutations were analyzed and EGFR , KRAS , BRAF , NRAS , ALK , PIK3CA and ERBB2 genes were compared and sampling time and suitability for clinical testing were assessed. Results : Both sequencing systems showed perfect concordance for the overlapping genes. Correlation of allele frequency was r ² = 0.93 for the retrospective patients and r ² = 0.81 for the prospective patients. Hands-on time and total run time were shorter using the PGM system, while the GeneReader platform provided good traceability and up-to-date interpretation of the results. Conclusion : We demonstrated the suitability of the GeneReader NGS system in routine practice in a clinical pathology laboratory setting.
Flow/Soot-Formation Interactions in Nonbuoyant Laminar Diffusion Flames

NASA Technical Reports Server (NTRS)

Dai, Z.; Faeth, G. M.

1999-01-01

Nonpremixed (diffusion) flames are attractive for practical applications because they avoid the stability, autoignition, flashback, etc. problems of premixed flames. Unfortunately, soot formation in practical hydrocarbon-fueled diffusion flames reduces their attractiveness due to widely-recognized public health and combustor durability problems of soot emissions. For example, more deaths are attributed to the emission of soot (15,000-60,000 deaths annually in the U.S. alone) than any other combustion-generated pollutant. In addition, continuum radiation from soot-containing flames is the principle heat load to combustor components and is mainly responsible for engine durability problems of aircraft and gas turbine engines. As a result, there is considerable interest in controlling both soot concentrations within flames and soot emissions from flames. Thus, the objective of the present investigation is to study ways to control soot formation in diffusion flames by manipulating the mixing process between the fuel and oxidant streams. In order to prevent the intrusion of gravity from masking flow properties that reduce soot formation in practical flames (where effects of gravity are small), methods developed during past work will be exploited to minimize effects of buoyant motion.
Human embryonic stem cell-derived mesodermal progenitors display substantially increased tissue formation compared to human mesenchymal stem cells under dynamic culture conditions in a packed bed/column bioreactor.

PubMed

de Peppo, Giuseppe Maria; Sladkova, Martina; Sjövall, Peter; Palmquist, Anders; Oudina, Karim; Hyllner, Johan; Thomsen, Peter; Petite, Hervé; Karlsson, Camilla

2013-01-01

Bone tissue engineering represents a promising strategy to obviate bone deficiencies, allowing the ex vivo construction of bone substitutes with unprecedented potential in the clinical practice. Considering that in the human body cells are constantly stimulated by chemical and mechanical stimuli, the use of bioreactor is emerging as an essential factor for providing the proper environment for the reproducible and large-scale production of the engineered substitutes. Human mesenchymal stem cells (hMSCs) are experimentally relevant cells but, regardless the encouraging results reported after culture under dynamic conditions in bioreactors, show important limitations for tissue engineering applications, especially considering their limited proliferative potential, loss of functionality following protracted expansion, and decline in cellular fitness associated with aging. On the other hand, we previously demonstrated that human embryonic stem cell-derived mesodermal progenitors (hES-MPs) hold great potential to provide a homogenous and unlimited source of cells for bone engineering applications. Based on prior scientific evidence using different types of stem cells, in the present study we hypothesized that dynamic culture of hES-MPs in a packed bed/column bioreactor had the potential to affect proliferation, expression of genes involved in osteogenic differentiation, and matrix mineralization, therefore resulting in increased bone-like tissue formation. The reported findings suggest that hES-MPs constitute a suitable alternative cell source to hMSCs and hold great potential for the construction of bone substitutes for tissue engineering applications in clinical settings.
Traditional vs. Contemporary Management Control Practices for Developing Public Health Policies

PubMed Central

Naranjo-Gil, David; Sánchez-Expósito, María Jesús; Gómez-Ruiz, Laura

2016-01-01

Public health policies must address multiple goals and complex community health needs. Recently, management control practices have emerged to provide a broader type of information for evaluating the effectiveness of healthcare policies, and relate activities and processes to multiple strategic outcomes. This study compares the effect of traditional and contemporary management control practices on the achievement of public health policies. It is also analyzed how two different uses of such practices (enabling vs. coercive) facilitate the achievement of public health policies. Relationships are explored using data collected from managers from public health agencies and public hospitals in Spain. The findings show that contemporary management control practices are more suitable than traditional practices to achieve public health policies. Furthermore, results show that public health policies are better achieved when managers use management control practices in an enabling way rather than in a coercive way. PMID:27428985
The evolution of a dead zone in a circumplanetary disk

NASA Astrophysics Data System (ADS)

Chen, Cheng; Martin, Rebecca; Zhu, Zhaohuan

2018-01-01

Studying the evolution of a circumplanetary disk can help us to understand the formation of Jupiter and the four Galilean satellites. With the grid-based hydrodynamic code, FARGO3D, we simulate the evolution of a circumplanetary disk with a dead zone, a region of low turbulence. Tidal torques from the sun constrain the size of the circumplanetary disk to about 0.4 R_H. The dead zone provides a cold environment for icy satellite formation. However, as material builds up there, the temperature of the dead zone may reach the critical temperature required for the magnetorotational instability to drive turbulence. Part of the dead zone accretes on to the planet in an accretion outburst. We explore possible disk parameters that provide a suitable environment for satellite formation.
Recruitment recommendation system based on fuzzy measure and indeterminate integral

NASA Astrophysics Data System (ADS)

Yin, Xin; Song, Jinjie

2017-08-01

In this study, we propose a comprehensive evaluation approach based on indeterminate integral. By introducing the related concepts of indeterminate integral and their formulas into the recruitment recommendation system, we can calculate the suitability of each job for different applicants with the defined importance for each criterion listed in the job advertisements, the association between different criteria and subjective assessment as the prerequisite. Thus we can make recommendations to the applicants based on the score of the suitability of each job from high to low. In the end, we will exemplify the usefulness and practicality of this system with samples.
Suitable configurations for triangular formation flying about collinear libration points under the circular and elliptic restricted three-body problems

NASA Astrophysics Data System (ADS)

Ferrari, Fabio; Lavagna, Michèle

2018-06-01

The design of formations of spacecraft in a three-body environment represents one of the most promising challenges for future space missions. Two or more cooperating spacecraft can greatly answer some very complex mission goals, not achievable by a single spacecraft. The dynamical properties of a low acceleration environment such as the vicinity of libration points associated to a three-body system, can be effectively exploited to design spacecraft configurations able of satisfying tight relative position and velocity requirements. This work studies the evolution of an uncontrolled formation orbiting in the proximity of periodic orbits about collinear libration points under the Circular and Elliptic Restricted Three-Body Problems. A three spacecraft triangularly-shaped formation is assumed as a representative geometry to be investigated. The study identifies initial configurations that provide good performance in terms of formation keeping, and investigates key parameters that control the relative dynamics between the spacecraft within the three-body system. Formation keeping performance is quantified by monitoring shape and size changes of the triangular formation. The analysis has been performed under five degrees of freedom to define the geometry, the orientation and the location of the triangle in the synodic rotating frame.
Writing an employer-focused resume for advanced practice nurses.

PubMed

Welton, Robert H

2013-01-01

The most important new trend in resumes is the employer-focused resume. Writing one is not difficult, but it requires a change in focus. The focus of this type of resume is on the needs of prospective employers. This new resume format allows applicants to describe to prospective employers what they can provide related to the employer's needs as opposed to a simple listing of their academic and work experiences without relation to the prospective new job. This article provides advanced practice nurses with sources to guide construction of informative text about their advanced practice nursing skills and competencies using language familiar to employers. Resumes and curriculum vitae formats are compared, and advice is provided on developing content for either format. Guidelines are provided about listing credentials, identifying clinical proficiencies from student clinical practicum, using qualification summaries rather than an objective statement, choosing references, and including essential components in a cover letter.
40 CFR 160.41 - General.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 23 2010-07-01 2010-07-01 false General. 160.41 Section 160.41 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS GOOD LABORATORY PRACTICE STANDARDS Facilities § 160.41 General. Each testing facility shall be of suitable size and...
21 CFR 226.30 - Equipment.

Code of Federal Regulations, 2010 CFR

2010-04-01

... CURRENT GOOD MANUFACTURING PRACTICE FOR TYPE A MEDICATED ARTICLES Construction and Maintenance of Facilities and Equipment § 226.30 Equipment. Equipment used for the manufacture, processing, packaging, bulk... maintained in a clean and orderly manner and shall be of suitable design, size, construction, and location to...
21 CFR 131.115 - Concentrated milk.

Code of Federal Regulations, 2014 CFR

2014-04-01

... be homogenized. (b) Vitamin addition (Optional). If added, vitamin D shall be present in such... manufacturing practice. (c) Optional ingredients. The following safe and suitable optional ingredients may be used: (1) Carrier for vitamin D. (2) Characterizing flavoring ingredients, with or without coloring, as...
21 CFR 110.10 - Personnel.

Code of Federal Regulations, 2010 CFR

2010-04-01

... CONSUMPTION CURRENT GOOD MANUFACTURING PRACTICE IN MANUFACTURING, PACKING, OR HOLDING HUMAN FOOD General... contamination of food. The methods for maintaining cleanliness include, but are not limited to: (1) Wearing outer garments suitable to the operation in a manner that protects against the contamination of food...
Laccase-mediator catalyzed conversion of model lignin compounds

USDA-ARS?s Scientific Manuscript database

Identifying suitable reaction conditions remains an important task in the development of practical enzyme catalysts. Laccases play an important role in the biological break down of lignin and have great potential in the deconstruction of lignocellulosic feedstocks. We examined 16 laccases, both comm...
Developing COSHH Essentials: dermal exposure, personal protective equipment and first aid.

PubMed

Garrod, A N I; Rajan-Sithamparanadarajah, R

2003-10-01

The 'control banding' approach in COSHH Essentials combines the potential for harm with the potential for exposure by inhalation to band measures to control exposure at source, as generic strategies. These are simply adapted to specific tasks and circumstances to produce specific control advice. Where it is not possible or practical to use this control advice, the control bands can suggest adequate respiratory protective equipment using 'protection factors'. Proposals in the paper enable the user to identify the right level of respiratory protective equipment (RPE), and to begin selecting suitable RPE. Selection is made through a formatted questionnaire, enabling the user to give the right facts to the supplier. COSHH Essentials applies mainly to exposure by inhalation. However, skin exposure is very common and uptake via the skin can be an important contributor to body dose. This paper examines the factors concerning skin exposure, and the options for banding the potential for harm to the skin or via the skin. Proposals have then been made for dermal exposure control. Planning for emergencies is an important facet of risk control. Proposals are outlined to band chemical hazards for emergency planning according to a minimum of information, i.e. the danger symbol on a product label.
Enhanced ionic conductivity with Li 7O 2Br 3 phase in Li 3OBr anti-perovskite solid electrolyte

DOE Office of Scientific and Technical Information (OSTI.GOV)

Zhu, Jinlong; Li, Shuai; Zhang, Yi

Cubic anti-perovskites with general formula Li 3OX (X = Cl, Br, I) were recently reported as superionic conductors with the potential for use as solid electrolytes in all-solid-state lithium ion batteries. These electrolytes are nonflammable, low-cost, and suitable for thermoplastic processing. However, the primary obstacle of its practical implementation is the relatively low ionic conductivity at room temperature. In this work, we synthesized a composite material consisting of two anti-perovskite phases, namely, cubic Li 3OBr and layered Li 7O 2Br 3, by solid state reaction routes. The results indicate that with the phase fraction of Li 7O 2Br 3 increasingmore » to 44 wt. %, the ionic conductivity increased by more than one order of magnitude compared with pure phase Li 3OBr. Formation energy calculations revealed the meta-stable nature of Li 7O 2Br 3, which supports the great difficulty in producing phase-pure Li 7O 2Br 3 at ambient pressure. Here, methods of obtaining phase-pure Li 7O 2Br 3 will continue to be explored, including both high pressure and metathesis techniques.« less
Catalytic reduction of CO 2 by H 2 for synthesis of CO, methanol and hydrocarbons: challenges and opportunities

DOE PAGES

Porosoff, Marc D.; Yan, Binhang; Chen, Jingguang G.

2015-10-22

Ocean acidification and climate change are expected to be two of the most difficult scientific challenges of the 21st century. Converting CO 2 into valuable chemicals and fuels is one of the most practical routes for reducing CO 2 emissions while fossil fuels continue to dominate the energy sector. Reducing CO 2 by H 2 using heterogeneous catalysis has been studied extensively, but there are still significant challenges in developing active, selective and stable catalysts suitable for large-scale commercialization. We study the catalytic reduction of CO 2 by H 2 can lead to the formation of three types of products:more » CO through the reverse water–gas shift (RWGS) reaction, methanol via selective hydrogenation, and hydrocarbons through combination of CO 2 reduction with Fischer–Tropsch (FT) reactions. In addition, investigations into these routes reveal that the stabilization of key reaction intermediates is critically important for controlling catalytic selectivity. Furthermore, viability of these processes is contingent on the development of a CO 2-free H 2 source on a large enough scale to significantly reduce CO 2 emissions.« less
Fibronectin in cell adhesion and migration via N-glycosylation

PubMed Central

Hsiao, Cheng-Te; Cheng, Hung-Wei; Huang, Chi-Ming; Li, Hao-Ru; Ou, Meng-Hsin; Huang, Jie-Rong; Khoo, Kay-Hooi; Yu, Helen Wenshin; Chen, Yin-Quan; Wang, Yang-Kao; Chiou, Arthur; Kuo, Jean-Cheng

2017-01-01

Directed cell migration is an important step in effective wound healing and requires the dynamic control of the formation of cell-extracellular matrix interactions. Plasma fibronectin is an extracellular matrix glycoprotein present in blood plasma that plays crucial roles in modulating cellular adhesion and migration and thereby helping to mediate all steps of wound healing. In order to seek safe sources of plasma fibronectin for its practical use in wound dressing, we isolated fibronectin from human (homo) and porcine plasma and demonstrated that both have a similar ability as a suitable substrate for the stimulation of cell adhesion and for directing cell migration. In addition, we also defined the N-glycosylation sites and N-glycans present on homo and porcine plasma fibronectin. These N-glycosylation modifications of the plasma fibronectin synergistically support the integrin-mediated signals to bring about mediating cellular adhesion and directed cell migration. This study not only determines the important function of N-glycans in both homo and porcine plasma fibronectin-mediated cell adhesion and directed cell migration, but also reveals the potential applications of porcine plasma fibronectin if it was applied as a material for clinical wound healing and tissue repair. PMID:29050309
Impact of Short-Range Forces on Defect Production from High-Energy Collisions

DOE PAGES

Stoller, R. E.; Tamm, A.; Béland, L. K.; ...

2016-04-25

Primary radiation damage formation in solid materials typically involves collisions between atoms that have up to a few hundred keV of kinetic energy. The distance between two colliding atoms can approach 0.05 nm during these collisions. At such small atomic separations, force fields fitted to equilibrium properties tend to significantly underestimate the potential energy of the colliding dimer. To enable molecular dynamics simulations of high-energy collisions, it is common practice to use a screened Coulomb force field to describe the interactions and to smoothly join this to the equilibrium force field at a suitable interatomic spacing. But, there is nomore » accepted standard method for choosing the parameters used in the joining process, and our results prove that defect production is sensitive to how the force fields are linked. A new procedure is presented that involves the use of ab initio calculations to determine the magnitude and spatial dependence of the pair interactions at intermediate distances, along with systematic criteria for choosing the joining parameters. Results are presented for the case of nickel, which demonstrate the use and validity of the procedure.« less
Enhanced ionic conductivity with Li 7O 2Br 3 phase in Li 3OBr anti-perovskite solid electrolyte

DOE PAGES

Zhu, Jinlong; Li, Shuai; Zhang, Yi; ...

2016-09-07

Cubic anti-perovskites with general formula Li 3OX (X = Cl, Br, I) were recently reported as superionic conductors with the potential for use as solid electrolytes in all-solid-state lithium ion batteries. These electrolytes are nonflammable, low-cost, and suitable for thermoplastic processing. However, the primary obstacle of its practical implementation is the relatively low ionic conductivity at room temperature. In this work, we synthesized a composite material consisting of two anti-perovskite phases, namely, cubic Li 3OBr and layered Li 7O 2Br 3, by solid state reaction routes. The results indicate that with the phase fraction of Li 7O 2Br 3 increasingmore » to 44 wt. %, the ionic conductivity increased by more than one order of magnitude compared with pure phase Li 3OBr. Formation energy calculations revealed the meta-stable nature of Li 7O 2Br 3, which supports the great difficulty in producing phase-pure Li 7O 2Br 3 at ambient pressure. Here, methods of obtaining phase-pure Li 7O 2Br 3 will continue to be explored, including both high pressure and metathesis techniques.« less

Biological synthesis of nanoparticles in biofilms.

PubMed

Tanzil, Abid H; Sultana, Sujala T; Saunders, Steven R; Shi, Liang; Marsili, Enrico; Beyenal, Haluk

2016-12-01

The biological synthesis of nanoparticles (NPs) by bacteria and biofilms via extracellular redox reactions has received attention because of the minimization of harmful chemicals, low cost, and ease of culturing and downstream processing. Bioreduction mechanisms vary across bacteria and growth conditions, which leads to various sizes and shapes of biosynthesized NPs. NP synthesis in biofilms offers additional advantages, such as higher biomass concentrations and larger surface areas, which can lead to more efficient and scalable biosynthesis. Although biofilms have been used to produce NPs, the mechanistic details of NP formation are not well understood. In this review, we identify three critical areas of research and development needed to advance our understanding of NP production by biofilms: 1) synthesis, 2) mechanism and 3) stabilization. Advancement in these areas could result in the biosynthesis of NPs that are suitable for practical applications, especially in drug delivery and biocatalysis. Specifically, the current status of methods and mechanisms of nanoparticle synthesis and surface stabilization using planktonic bacteria and biofilms is discussed. We conclude that the use of biofilms to synthesize and stabilize NPs is underappreciated and could provide a new direction in biofilm-based NP production. Copyright © 2016 Elsevier Inc. All rights reserved.
Wetting of heterogeneous substrates. A classical density-functional-theory approach

NASA Astrophysics Data System (ADS)

Yatsyshin, Peter; Parry, Andrew O.; Rascón, Carlos; Duran-Olivencia, Miguel A.; Kalliadasis, Serafim

2017-11-01

Wetting is a nucleation of a third phase (liquid) on the interface between two different phases (solid and gas). In many experimentally accessible cases of wetting, the interplay between the substrate structure, and the fluid-fluid and fluid-substrate intermolecular interactions leads to the appearance of a whole ``zoo'' of exciting interface phase transitions, associated with the formation of nano-droplets/bubbles, and thin films. Practical applications of wetting at small scales are numerous and include the design of lab-on-a-chip devices and superhydrophobic surfaces. In this talk, we will use a fully microscopic approach to explore the phase space of a planar wall, decorated with patches of different hydrophobicity, and demonstrate the highly non-trivial behaviour of the liquid-gas interface near the substrate. We will present fluid density profiles, adsorption isotherms and wetting phase diagrams. Our analysis is based on a formulation of statistical mechanics, commonly known as classical density-functional theory. It provides a computationally-friendly and rigorous framework, suitable for probing small-scale physics of classical fluids and other soft-matter systems. EPSRC Grants No. EP/L027186,EP/K503733;ERC Advanced Grant No. 247031.
Innovative three-dimensional (3D) eco-TiO2 photocatalysts for practical environmental and bio-medical applications

PubMed Central

Lee, Hyun Uk; Lee, Soon Chang; Lee, Young-Chul; Son, Byoungchul; Park, So Young; Lee, Jae Won; Oh, You-Kwan; Kim, Yooseok; Choi, Saehae; Lee, Young-Seak; Lee, Jouhahn

2014-01-01

It is known that water purified by conventional TiO2 photocatalysts may not be safe enough for drinking, due to the toxicity by tiny existence of TiO2 nanoparticles after water treatment. We herein demonstrate a facile design of a three-dimensional (3D) TiO2 photocatalyst structure with which both the efficiency of purification and the safety level of the final purified water can be improved and ensured, respectively. The structure, consisting of 3D sulfur-doped TiO2 microtubes in nanotubes (eco-TiO2), is suitable for both environmental and bio-medical applications. Investigation of its formation mechanism reveals that anodic aluminum oxide (AAO), owing to a spatial constraint, causes a simple, nanoparticles-to-nanotubes structural rearrangement as a template for nanotube growth. It is found that eco-TiO2 can be activated under visible-light irradiation by non-metal (sulfur; S) doping, after which it shows visible-light photocatalytic activities over a range of solar energy. Importantly, an in vitro cytotoxicity test of well-purified water by eco-TiO2 confirms that eco-TiO2 satisfies the key human safety conditions. PMID:25338845
Innovative three-dimensional (3D) eco-TiO₂ photocatalysts for practical environmental and bio-medical applications.

PubMed

Lee, Hyun Uk; Lee, Soon Chang; Lee, Young-Chul; Son, Byoungchul; Park, So Young; Lee, Jae Won; Oh, You-Kwan; Kim, Yooseok; Choi, Saehae; Lee, Young-Seak; Lee, Jouhahn

2014-10-23

It is known that water purified by conventional TiO2 photocatalysts may not be safe enough for drinking, due to the toxicity by tiny existence of TiO2 nanoparticles after water treatment. We herein demonstrate a facile design of a three-dimensional (3D) TiO2 photocatalyst structure with which both the efficiency of purification and the safety level of the final purified water can be improved and ensured, respectively. The structure, consisting of 3D sulfur-doped TiO2 microtubes in nanotubes (eco-TiO2), is suitable for both environmental and bio-medical applications. Investigation of its formation mechanism reveals that anodic aluminum oxide (AAO), owing to a spatial constraint, causes a simple, nanoparticles-to-nanotubes structural rearrangement as a template for nanotube growth. It is found that eco-TiO2 can be activated under visible-light irradiation by non-metal (sulfur; S) doping, after which it shows visible-light photocatalytic activities over a range of solar energy. Importantly, an in vitro cytotoxicity test of well-purified water by eco-TiO2 confirms that eco-TiO2 satisfies the key human safety conditions.
Endogenous electromagnetic fields in plant leaves: a new hypothesis for vascular pattern formation.

PubMed

Pietak, Alexis Mari

2011-06-01

Electromagnetic (EM) phenomena have long been implicated in biological development, but few detailed, practical mechanisms have been put forth to connect electromagnetism with morphogenetic processes. This work describes a new hypothesis for plant leaf veination, whereby an endogenous electric field forming as a result of a coherent Frohlich process, and corresponding to an EM resonant mode of the developing leaf structure, is capable of instigating leaf vascularisation. In order to test the feasibility of this hypothesis, a three-dimensional, EM finite-element model (FEM) of a leaf primordium was constructed to determine if suitable resonant modes were physically possible for geometric and physical parameters similar to those of developing leaf tissue. Using the FEM model, resonant EM modes with patterns of relevance to developing leaf vein modalities were detected. On account of the existence of shared geometric signatures in a leaf's vascular pattern and the electric field component of EM resonant modes supported by a developing leaf structure, further theoretical and experimental investigations are warranted. Significantly, this hypothesis is not limited to leaf vascular patterning, but may be applicable to a variety of morphogenetic phenomena in a number of living systems.
"Ruffled border" formation on a CaP-free substrate: A first step towards osteoclast-recruiting bone-grafts materials able to re-establish bone turn-over.

PubMed

Merolli, Antonio; Fung, Stephanie; Murthy, N Sanjeeva; Pashuck, E Thomas; Mao, Yong; Wu, Xiaohuan; Steele, Joseph A M; Martin, Daniel; Moghe, Prabhas V; Bromage, Timothy; Kohn, Joachim

2018-03-21

Osteoclasts are large multinucleated giant cells that actively resorb bone during the physiological bone turnover (BTO), which is the continuous cycle of bone resorption (by osteoclasts) followed by new bone formation (by osteoblasts). Osteoclasts secrete chemotactic signals to recruit cells for regeneration of vasculature and bone. We hypothesize that a biomaterial that attracts osteoclasts and re-establishes BTO will induce a better healing response than currently used bone graft materials. While the majority of bone regeneration efforts have focused on maximizing bone deposition, the novelty in this approach is the focus on stimulating osteoclastic resorption as the starter for BTO and its concurrent new vascularized bone formation. A biodegradable tyrosine-derived polycarbonate, E1001(1k), was chosen as the polymer base due to its ability to support bone regeneration in vivo. The polymer was functionalized with a RGD peptide or collagen I, or blended with β-tricalcium phosphate. Osteoclast attachment and early stages of active resorption were observed on all substrates. The transparency of E1001(1k) in combination with high resolution confocal imaging enabled visualization of morphological features of osteoclast activation such as the formation of the "actin ring" and the "ruffled border", which previously required destructive forms of imaging such as transmission electron microscopy. The significance of these results is twofold: (1) E1001(1k) is suitable for osteoclast attachment and supports osteoclast maturation, making it a base polymer that can be further modified to optimize stimulation of BTO and (2) the transparency of this polymer makes it a suitable analytical tool for studying osteoclast behavior.
Ultrasonic monitoring of yoghurt formation by using AT-cut quartz: lighting of casein micelles interactions process during the acidification.

PubMed

Ould-Ehssein, C; Serfaty, S; Griesmar, P; Le Huérou, J-Y; Caplain, E; Martinez, L; Wilkie-Chancellier, N; Gindre, M

2006-12-22

The behavior of weak gels during their formation singularly attracts attention of dairy products factories. In our study we investigate acidified pre-heated milk gels formation that are fairly often used to product yoghurts. The gel formation requires a tight control of the first step of micelles modification process and the kinetics reaction parameters. The most current rheological parameters used to achieve the monitoring are the storage G' and the loss G'' shear moduli and the gelation time. The study of these parameters is commonly performed at very low frequencies (1 Hz). Our technique uses a 6 MHz AT-cut quartz crystal immersed in an acidified milk solution kept at a constant temperature. This method is singularly effective to ensure a complete and a reliable follow-up of the viscoelastic parameters of casein gels. A suitable new model enables a complete follow-up of the micelles evolution from the viscoelastic properties. The experimental results of the G' and G'' moduli versus temperature and versus glucono-delta-lactone (GDL) added to milk are analyzed. In order to understand the micelles modifications, an analysis of the viscoelastic evolution try to explain the validity of the various models of micelles modification. In addition a new accurate kinetics characteristic time is proposed. This time corresponds to the moment for which the elastic effect of material becomes significant. From the kinetics study of casein gels at various temperatures, the Arrhenius relationship and a modified Flory-Stockmayer relationship give us access to the activation energy. By using the proposed technique and the suitable models developed, the structure thus quality of dairy products may be better controlled.
Geologic framework for the national assessment of carbon dioxide storage resources: Powder River Basin, Wyoming, Montana, South Dakota, and Nebraska: Chapter B in Geologic framework for the national assessment of carbon dioxide storage resources

USGS Publications Warehouse

Craddock, William H.; Drake II, Ronald M.; Mars, John L.; Merrill, Matthew D.; Warwick, Peter D.; Blondes, Madalyn S.; Gosai, Mayur A.; Freeman, P.A.; Cahan, Steven A.; DeVera, Christina A.; Lohr, Celeste D.; Warwick, Peter D.; Corum, Margo D.

2012-01-01

This report presents ten storage assessment units (SAUs) within the Powder River Basin of Wyoming, Montana, South Dakota, and Nebraska. The Powder River Basin contains a thick succession of sedimentary rocks that accumulated steadily throughout much of the Phanerozoic, and at least three stratigraphic packages contain strata that are suitable for CO2 storage. Pennsylvanian through Triassic siliciclastic strata contain two potential storage units: the Pennsylvanian and Permian Tensleep Sandstone and Minnelusa Formation, and the Triassic Crow Mountain Sandstone. Jurassic siliciclastic strata contain one potential storage unit: the lower part of the Sundance Formation. Cretaceous siliciclastic strata contain seven potential storage units: (1) the Fall River and Lakota Formations, (2) the Muddy Sandstone, (3) the Frontier Sandstone and Turner Sandy Member of the Carlile Shale, (4) the Sussex and Shannon Sandstone Members of Cody Shale, and (5) the Parkman, (6) Teapot, and (7) Teckla Sandstone Members of the Mesaverde Formation. For each SAU, we discuss the areal distribution of suitable CO2 reservoir rock. We also characterize the overlying sealing unit and describe the geologic characteristics that influence the potential CO2 storage volume and reservoir performance. These characteristics include reservoir depth, gross thickness, net thickness, porosity, permeability, and groundwater salinity. Case-by-case strategies for estimating the pore volume existing within structurally and (or) stratigraphically closed traps are presented. Although assessment results are not contained in this report, the geologic information included herein will be employed to calculate the potential storage space in the various SAUs.
Faculty Practice: Facilitation of Clinical Integrations into the Academic Triad Model.

ERIC Educational Resources Information Center

Newland, Jamesetta A.; Truglio-Londrigan, Marie

2003-01-01

Uses the Pace University School of Nursing as an example of the evolution of models of nursing faculty practice. Discusses outcomes of evaluation of faculty practice through surveys and interviews: formation of a support group for faculty involved in practice and recommendations for university-wide culture change regarding the academic triad.…
Community-Based Career Guidance Practices. Vol. I--Elementary Level.

ERIC Educational Resources Information Center

Manatee Junior Coll., Bradenton, FL.

This collection of twelve elementary-level career guidance practices consists of four activities which may be grouped under the heading of novel practices, three activities involving community volunteers, a field trip, a career day activity, and three mobile activities. A standard format (including a description of the practice, its objectives, a…
Evaluating the effects of massed and distributed practice on acquisition and maintenance of tacts and textual behavior with typically developing children.

PubMed

Haq, Shaji S; Kodak, Tiffany

2015-01-01

This study evaluated the effects of massed and distributed practice on the acquisition of tacts and textual behavior in typically developing children. We compared the effects of massed practice (i.e., consolidating all practice opportunities during the week into a single session) and distributed practice (i.e., distributing all practice opportunities across 4 sessions during the week) on the acquisition of textual behavior in English, tacting pictures of common nouns in Spanish, and textual behavior in Spanish using an adapted alternating treatments design embedded within a multiple probe design. We also examined correct responding during probes that (a) excluded prompts and reinforcement and (b) occurred 48 hr after training each week. The results indicated that distributed practice was the more efficient training format. Maintenance data collected up to 4 weeks after training also indicated that the participants consistently displayed higher levels of correct responding to targets that had been trained in distributed format. We discuss implications for practice and potential areas for future research. © Society for the Experimental Analysis of Behavior.
Worldview Formation, Reflexivity, and Personhood: Their Essential Connectivity in Thick Perspective

ERIC Educational Resources Information Center

Geiger, Matthew W.

2017-01-01

This article is based on a collaborative ethnographic project involving three Episcopal high schools and explores how educating for worldview formation is necessarily educating for reflexivity and personhood. While religious educators frequently affirm the goal of worldview formation in religious education, a description of the practical and…
15 CFR 995.27 - Format validation software testing.

Code of Federal Regulations, 2013 CFR

2013-01-01

... 15 Commerce and Foreign Trade 3 2013-01-01 2013-01-01 false Format validation software testing... of NOAA ENC Products § 995.27 Format validation software testing. Tests shall be performed verifying, as far as reasonable and practicable, that CEVAD's data testing software performs the checks, as...
15 CFR 995.27 - Format validation software testing.

Code of Federal Regulations, 2014 CFR

2014-01-01

... 15 Commerce and Foreign Trade 3 2014-01-01 2014-01-01 false Format validation software testing... of NOAA ENC Products § 995.27 Format validation software testing. Tests shall be performed verifying, as far as reasonable and practicable, that CEVAD's data testing software performs the checks, as...
15 CFR 995.27 - Format validation software testing.

Code of Federal Regulations, 2012 CFR

2012-01-01

... 15 Commerce and Foreign Trade 3 2012-01-01 2012-01-01 false Format validation software testing... of NOAA ENC Products § 995.27 Format validation software testing. Tests shall be performed verifying, as far as reasonable and practicable, that CEVAD's data testing software performs the checks, as...
15 CFR 995.27 - Format validation software testing.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 15 Commerce and Foreign Trade 3 2011-01-01 2011-01-01 false Format validation software testing... of NOAA ENC Products § 995.27 Format validation software testing. Tests shall be performed verifying, as far as reasonable and practicable, that CEVAD's data testing software performs the checks, as...
Analysis of Experimentation Results on University Graduates' Readiness Formation to Act in Extraordinary Situations

ERIC Educational Resources Information Center

Moloshavenko, Vera L.; Prozorova, Galina V.; Sienkiewicz, Lyudmila B.

2016-01-01

The article presents the experimentation on graduates' readiness formation to act in extraordinary situations conducted in the Tyumen Industrial University in training bachelors in "Oil and Gas Business". The criteria of graduates' readiness formation to act in extraordinary situations are the following: practicability, validity,…
Utilising database-driven interactive software to enhance independent home-study in a flipped classroom setting: going beyond visualising engineering concepts to ensuring formative assessment

NASA Astrophysics Data System (ADS)

Comerford, Liam; Mannis, Adam; DeAngelis, Marco; Kougioumtzoglou, Ioannis A.; Beer, Michael

2018-07-01

The concept of formative assessment is considered by many to play an important role in enhancing teaching in higher engineering education. In this paper, the concept of the flipped classroom as part of a blended learning curriculum is highlighted as an ideal medium through which formative assessment practices arise. Whilst the advantages of greater interaction between students and lecturers in classes are numerous, there are often clear disadvantages associated with the independent home-study component that complements timetabled sessions in a flipped classroom setting, specifically, the popular method of replacing traditional classroom teaching with video lectures. This leads to a clear lack of assurances that the cited benefits of a flipped classroom approach are echoed in the home-study arena. Over the past three years, the authors have sought to address identified deficiencies in this area of blended learning through the development of database-driven e-learning software with the capability of introducing formative assessment practices to independent home-study. This paper maps out aspects of two specific evolving practices at separate institutions, from which guiding principles of incorporating formative assessment aspects into e-learning software are identified and highlighted in the context of independent home-study as part of a flipped classroom approach.
Retrieval practice with short-answer, multiple-choice, and hybrid tests.

PubMed

Smith, Megan A; Karpicke, Jeffrey D

2014-01-01

Retrieval practice improves meaningful learning, and the most frequent way of implementing retrieval practice in classrooms is to have students answer questions. In four experiments (N=372) we investigated the effects of different question formats on learning. Students read educational texts and practised retrieval by answering short-answer, multiple-choice, or hybrid questions. In hybrid conditions students first attempted to recall answers in short-answer format, then identified answers in multiple-choice format. We measured learning 1 week later using a final assessment with two types of questions: those that could be answered by recalling information verbatim from the texts and those that required inferences. Practising retrieval in all format conditions enhanced retention, relative to a study-only control condition, on both verbatim and inference questions. However, there were little or no advantages of answering short-answer or hybrid format questions over multiple-choice questions in three experiments. In Experiment 4, when retrieval success was improved under initial short-answer conditions, there was an advantage of answering short-answer or hybrid questions over multiple-choice questions. The results challenge the simple conclusion that short-answer questions always produce the best learning, due to increased retrieval effort or difficulty, and demonstrate the importance of retrieval success for retrieval-based learning activities.
The program LOPT for least-squares optimization of energy levels

NASA Astrophysics Data System (ADS)

Kramida, A. E.

2011-02-01

The article describes a program that solves the least-squares optimization problem for finding the energy levels of a quantum-mechanical system based on a set of measured energy separations or wavelengths of transitions between those energy levels, as well as determining the Ritz wavelengths of transitions and their uncertainties. The energy levels are determined by solving the matrix equation of the problem, and the uncertainties of the Ritz wavenumbers are determined from the covariance matrix of the problem. Program summaryProgram title: LOPT Catalogue identifier: AEHM_v1_0 Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEHM_v1_0.html Program obtainable from: CPC Program Library, Queen's University, Belfast, N. Ireland Licensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.html No. of lines in distributed program, including test data, etc.: 19 254 No. of bytes in distributed program, including test data, etc.: 427 839 Distribution format: tar.gz Programming language: Perl v.5 Computer: PC, Mac, Unix workstations Operating system: MS Windows (XP, Vista, 7), Mac OS X, Linux, Unix (AIX) RAM: 3 Mwords or more Word size: 32 or 64 Classification: 2.2 Nature of problem: The least-squares energy-level optimization problem, i.e., finding a set of energy level values that best fits the given set of transition intervals. Solution method: The solution of the least-squares problem is found by solving the corresponding linear matrix equation, where the matrix is constructed using a new method with variable substitution. Restrictions: A practical limitation on the size of the problem N is imposed by the execution time, which scales as N and depends on the computer. Unusual features: Properly rounds the resulting data and formats the output in a format suitable for viewing with spreadsheet editing software. Estimates numerical errors resulting from the limited machine precision. Running time: 1 s for N=100, or 60 s for N=400 on a typical PC.

Verification and Validation of Digitally Upgraded Control Rooms

DOE Office of Scientific and Technical Information (OSTI.GOV)

Boring, Ronald; Lau, Nathan

2015-09-01

As nuclear power plants undertake main control room modernization, a challenge is the lack of a clearly defined human factors process to follow. Verification and validation (V&V) as applied in the nuclear power community has tended to involve efforts such as integrated system validation, which comes at the tail end of the design stage. To fill in guidance gaps and create a step-by-step process for control room modernization, we have developed the Guideline for Operational Nuclear Usability and Knowledge Elicitation (GONUKE). This approach builds on best practices in the software industry, which prescribe an iterative user-centered approach featuring multiple cyclesmore » of design and evaluation. Nuclear regulatory guidance for control room design emphasizes summative evaluation—which occurs after the design is complete. In the GONUKE approach, evaluation is also performed at the formative stage of design—early in the design cycle using mockups and prototypes for evaluation. The evaluation may involve expert review (e.g., software heuristic evaluation at the formative stage and design verification against human factors standards like NUREG-0700 at the summative stage). The evaluation may also involve user testing (e.g., usability testing at the formative stage and integrated system validation at the summative stage). An additional, often overlooked component of evaluation is knowledge elicitation, which captures operator insights into the system. In this report we outline these evaluation types across design phases that support the overall modernization process. The objective is to provide industry-suitable guidance for steps to be taken in support of the design and evaluation of a new human-machine interface (HMI) in the control room. We suggest the value of early-stage V&V and highlight how this early-stage V&V can help improve the design process for control room modernization. We argue that there is a need to overcome two shortcomings of V&V in current practice—the propensity for late-stage V&V and the use of increasingly complex psychological assessment measures for V&V.« less
The use of anaesthetic agents to provide anxiolysis and sedation in dentistry and oral surgery.

PubMed

O'Halloran, Michael

2013-12-31

Throughout the world there is considerable variation in the techniques used to manage anxious dental patients requiring treatment. Traditionally anxious or phobic dental patients may have been sent for general anaesthesia to allow dental treatment be undertaken. While this is still the case for the more invasive oral surgical procedures, such as wisdom teeth extraction, sedation in general dentistry is becoming more popular. Various sedation techniques using many different anaesthetic agents have gained considerable popularity over the past 30 years. While the practice of sedating patients for dental procedures is invaluable in the management of suitably assessed patients, patient safety must always be the primary concern. Medical, dental and psychosocial considerations must be taken into account when evaluating the patient need and the patient suitability for sedation or general anaesthesia. The regulations that govern the practice of dental sedation vary throughout the world, in particular regarding the techniques used and the training necessary for dental practitioners to sedate patients. It is necessary for medical and dental practitioners to be up to date on current practice to ensure standards of practice, competence and safety throughout our profession. This article, the first in a two-part series, will provide information to practitioners on the practice of sedation in dentistry, the circumstances where it may be appropriate instead of general anaesthesia and the risks involved with sedation. It will also discuss the specific training and qualifications required for dental practitioners to provide sedation. The second article in this series will outline the different techniques used to administer inhalation, oral and intravenous sedation in dentistry and will focus on specific methods that are practiced.
Land-use evaluation for sustainable construction in a protected area: A case of Sara mountain national park.

PubMed

Ristić, Vladica; Maksin, Marija; Nenković-Riznić, Marina; Basarić, Jelena

2018-01-15

The process of making decisions on sustainable development and construction begins in spatial and urban planning when defining the suitability of using land for sustainable construction in a protected area (PA) and its immediate and regional surroundings. The aim of this research is to propose and assess a model for evaluating land-use suitability for sustainable construction in a PA and its surroundings. The methodological approach of Multi-Criteria Decision Analysis was used in the formation of this model and adapted for the research; it was combined with the adapted Analytical hierarchy process and the Delphi process, and supported by a geographical information system (GIS) within the framework of ESRI ArcGIS software - Spatial analyst. The model is applied to the case study of Sara mountain National Park in Kosovo. The result of the model is a "map of integrated assessment of land-use suitability for sustainable construction in a PA for the natural factor". Copyright © 2017 Elsevier Ltd. All rights reserved.
Investigation into the suitability and accessibility of catering practices to inpatients from minority ethnic groups in Brent.

PubMed

Hartley, Becky A; Hamid, F

2002-06-01

The Borough of Brent has one of the largest ethnic minority populations in England, with a growing number of refugee communities from Africa and Europe. Two important issues to be considered when developing culturally sensitive services in the hospital (including food provision) are that practices meet the religious and cultural requirements of the population that the hospital serves and that staff are equipped with the skills to understand cultural differences in illness and treatment. To review accessibility and suitability of multicultural meals to minority ethnic communities across five hospital sites in Brent and determine the level of nursing staff knowledge of multicultural dietary competencies. One survey was completed in each of the five hospital sites to gather information about current catering practices. Two separate questionnaires obtained information of the level of inpatient satisfaction with multicultural meals amongst Hindu, Muslim, Caribbean and Jewish patient groups and knowledge of nursing staff about multicultural competencies. Community groups representing minority ethnic populations participated in focus groups to establish feedback about dietary requirements in hospitals. Access to multicultural meals varied across hospital sites. Of 98 patients in the inpatient satisfaction survey, 74% were aware of the availability of multicultural meals with 51% of these patients not ordering any of the Asian vegetarian, Asian halal, Caribbean or kosher meals, citing satisfaction with European food as the main reason. Those ordering multicultural meals reported satisfaction most of the time (42%), satisfied most of the time (38%) and never satisfied (19%). The African Muslim group was the least satisfied with current halal meal provision. Forty-seven per cent of nurses questioned could accurately answer questions about multicultural dietary competencies. Improvements could be made to improve accessibility and improve suitability of meal choices to inpatients from minority ethnic groups.
Career Education: A Lifelong Process

ERIC Educational Resources Information Center

Fuller, Jack W., Ed.; Whealon, Terry O., Ed.

Intended for use by students, professional career counselors, and teachers, this book contains a selection of writings by many notable authorities and practitioners of career education in the United States. Its fifty-four articles present background information, philosophical and practical problems, programs suitable for adaptation, and the…
Ballast and Subgrade requirements study : railroad track substructure - design and performance evaluation practices

DOT National Transportation Integrated Search

1983-06-30

Earth materials--i.e., soil and rock--form the substructure (ballast, subballast, and subgrade) of all railroad track. In this report, the most suitable technology and design criteria as related to design of the substructure are identified based on a...
21 CFR 211.130 - Packaging and labeling operations.

Code of Federal Regulations, 2010 CFR

2010-04-01

... (CONTINUED) DRUGS: GENERAL CURRENT GOOD MANUFACTURING PRACTICE FOR FINISHED PHARMACEUTICALS Packaging and Labeling Control § 211.130 Packaging and labeling operations. There shall be written procedures designed to... manufacture and control of the batch. (d) Examination of packaging and labeling materials for suitability and...
Linear Equations. [Student Worksheets for Vocational Agricultural Courses].

ERIC Educational Resources Information Center

Jewell, Larry R.

This learning module provides students with practice in applying algebraic operations to vocational agriculture. The module consists of unit objectives, definitions, information, problems to solve, worksheets suitable for various levels of vocational agriculture instruction, and answer keys for the problems and worksheets. This module, which…
Common Fractions. [Student Worksheets for Vocational Agricultural Courses].

ERIC Educational Resources Information Center

Jewell, Larry R.

This learning module provides students with practice in applying mathematical operations to vocational agriculture. The module consists of unit objectives, definitions, information, problems to solve, worksheets suitable for various levels of vocational agriculture instruction, and answer keys for the problems and worksheets. This module, which…
Try This: Parachute Drop

ERIC Educational Resources Information Center

Preston, Christine

2017-01-01

If you think of play as "the work of children" (Whitebread, Basilio, Kuvalja & Verma, 2012) then toys are surely the "tools of their trade". The involvement of scientific principles in how they work makes certain toys ideal stimuli for science investigations. This article describes a practical investigation suitable for…
Processing of Brassica seeds for feedstock in biofuels production

USDA-ARS?s Scientific Manuscript database

Several Brassica species are currently being evaluated to develop regionalized production systems based on their suitability to the environment and with the prevailing practices of growing commodity food crops like wheat, corn, and soybeans. This integrated approach to farming will provide high qual...
16 CFR 1500.133 - Extremely flammable contact adhesives; labeling.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Extremely flammable contact adhesives... REGULATIONS § 1500.133 Extremely flammable contact adhesives; labeling. (a) Extremely flammable contact adhesives, also known as contact bonding cements, when distributed in containers intended or suitable for...
The Application of Buddhist Principles to Lifelong Learning.

ERIC Educational Resources Information Center

Johnson, Ian

2002-01-01

Defining lifelong learning as conscious learning taking place throughout life, Buddhist meditation, contemplation, and mindfulnes are practices suitable to developing awareness of life experience. This broadens the concept of lifelong learning beyond the narrow vocationalism and economic determinism of much current discourse. (Contains 36…
Learning by Doing in Ornamental Horticulture

ERIC Educational Resources Information Center

Petrick, Glenn H.

1977-01-01

An instructor in the Horticulture Department of the Milwaukee Area Technical College describes their work experience program which simulates closely the occupational conditions of the horticulture industry. The new campus gives students practice in landscape skills and an internship program places students with suitable employers. (MF)
Sedation and monitoring for gastrointestinal endoscopy

PubMed Central

Amornyotin, Somchai

2013-01-01

The safe sedation of patients for diagnostic or therapeutic procedures requires a combination of properly trained physicians and suitable facilities. Additionally, appropriate selection and preparation of patients, suitable sedative technique, application of drugs, adequate monitoring, and proper recovery of patients is essential. The goal of procedural sedation is the safe and effective control of pain and anxiety as well as to provide an appropriate degree of memory loss or decreased awareness. Sedation practices for gastrointestinal endoscopy (GIE) vary widely. The majority of GIE patients are ambulatory cases. Most of this procedure requires a short time. So, short acting, rapid onset drugs with little adverse effects and improved safety profiles are commonly used. The present review focuses on commonly used regimens and monitoring practices in GIE sedation. This article is to discuss the decision making process used to determine appropriate pre-sedation assessment, monitoring, drug selection, dose of sedative agents, sedation endpoint and post-sedation care. It also reviews the current status of sedation and monitoring for GIE procedures in Thailand. PMID:23424050
A Practically Validated Intelligent Calibration Circuit Using Optimized ANN for Flow Measurement by Venturi

NASA Astrophysics Data System (ADS)

Venkata, Santhosh Krishnan; Roy, Binoy Krishna

2016-03-01

Design of an intelligent flow measurement technique using venturi flow meter is reported in this paper. The objectives of the present work are: (1) to extend the linearity range of measurement to 100 % of full scale input range, (2) to make the measurement technique adaptive to variations in discharge coefficient, diameter ratio of venturi nozzle and pipe (β), liquid density, and liquid temperature, and (3) to achieve the objectives (1) and (2) using an optimized neural network. The output of venturi flow meter is differential pressure. It is converted to voltage by using a suitable data conversion unit. A suitable optimized artificial neural network (ANN) is added, in place of conventional calibration circuit. ANN is trained, tested with simulated data considering variations in discharge coefficient, diameter ratio between venturi nozzle and pipe, liquid density, and liquid temperature. The proposed technique is then subjected to practical data for validation. Results show that the proposed technique has fulfilled the objectives.
Developing clinically suitable measures of social cognition for children: initial findings from a normative sample.

PubMed

Saltzman-Benaiah, Jennifer; Lalonde, Christopher E

2007-03-01

Our understanding of children's social competence has increased tremendously over the past two decades. There is increasing evidence to suggest that social-cognitive impairments are not restricted to children on the autistic spectrum, but rather may be associated with a host of developmental and acquired neurological conditions including learning disabilities, attention deficit disorder, traumatic brain injury, and stroke. Although many investigators have begun to bridge the gap between clinical practice and research by applying experimental tasks to clinical populations, few tools are available for the clinical evaluation of social competence, particularly in children. This study marks a series of first steps in the development of measures suitable for the assessment of children between 6 and 12 years of age. The results of the study provide data for a number of experimental tasks that have been adapted with clinical practice in mind. A discussion of the developmental progressions and the relationships among the measures is also included.
Nevi and lasers: Practical considerations.

PubMed

Rogers, Tova; Krakowski, Andrew C; Marino, Maria L; Rossi, Anthony; Anderson, Richard R; Marghoob, Ashfaq A

2018-01-01

Lasers are increasingly used for elective ablation of melanocytic nevi (MN). However, the associated risks of treating MN with lasers are debated and not well studied. Theoretical risks include inadvertently treating a melanoma mistaken for a nevus, the inability to remove all nevus cells and the possibility for residual cells to undergo malignant transformation, and the difficulty in clinically monitoring the remnant nevus for melanoma progression. Additional concerns include the morphological suitability of a lesion for laser removal and managing patients' expectations about the variable cosmetic outcomes. These potential issues have prompted us to outline some practical suggestions for clinicians and patients to consider when determining the suitability of a nevus for laser ablation. The choice to perform laser removal of a nevus is personal, both from the perspective of the treating physician and that of the person being treated. While acknowledging some uncertainty, we believe that these suggestions can help mitigate risk and improve patient outcomes. Lasers Surg. Med. 50:7-9, 2018. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.
Criteria for the assessment of analyser practicability

PubMed Central

Biosca, C.; Galimany, R.

1993-01-01

This article lists the theoretical criteria that need to be considered to assess the practicability of an automatic analyser. Two essential sets of criteria should be taken into account when selecting an automatic analyser: ‘reliability’ and ‘practicability’. Practibility covers the features that provide information about the suitability of an analyser for specific working conditions. These practibility criteria are classsified in this article and include the environment; work organization; versatility and flexibility; safely controls; staff training; maintenance and operational costs. PMID:18924972
Electro-Optical Sensing Apparatus and Method for Characterizing Free-Space Electromagnetic Radiation

DOEpatents

Zhang, Xi-Cheng; Libelo, Louis Francis; Wu, Qi

1999-09-14

Apparatus and methods for characterizing free-space electromagnetic energy, and in particular, apparatus/method suitable for real-time two-dimensional far-infrared imaging applications are presented. The sensing technique is based on a non-linear coupling between a low-frequency electric field and a laser beam in an electro-optic crystal. In addition to a practical counter-propagating sensing technique, a co-linear approach is described which provides longer radiated field--optical beam interaction length, thereby making imaging applications practical.

Generate stepper motor linear speed profile in real time

NASA Astrophysics Data System (ADS)

Stoychitch, M. Y.

2018-01-01

In this paper we consider the problem of realization of linear speed profile of stepper motors in real time. We considered the general case when changes of speed in the phases of acceleration and deceleration are different. The new and practical algorithm of the trajectory planning is given. The algorithms of the real time speed control which are suitable for realization to the microcontroller and FPGA circuits are proposed. The practical realization one of these algorithms, using Arduino platform, is given also.
Plastic and reconstructive robotic microsurgery--a review of current practices.

PubMed

Saleh, D B; Syed, M; Kulendren, D; Ramakrishnan, V; Liverneaux, P A

2015-08-01

We sought to review the current state of robotics in this specialty. A Pubmed and Medline search was performed using key search terms for a comprehensive review of the whole cross-section of plastic and reconstructive practice. Overall, 28 publications specific to robotic plastic and reconstructive procedures were suitable for appraisal. The current evidence suggests robotics is comparable to standard methods despite its infancy. The possible applications are wide and could translate into superior patient outcomes. Copyright © 2015 Elsevier Masson SAS. All rights reserved.
Some anatomical and physiological aspects of anal sexual practices.

PubMed

Agnew, J

1985-01-01

Anal manipulation and penetration produce stimulation enjoyed as sexual by some people. Although this type of sexual activity is not new, the current social climate of sexual freedom and experimentation has brought it out into the open. This paper reviews some of the anatomical, physiological, and behavioral aspects of this variation of human sexual gratification, and provides the practicing professional, who has to deal with questions on anal sexuality, with information on the subject and suitable background material and literature references for further study.
REVIEW OF SCHREIBMAN'S THE SCIENCE AND FICTION OF AUTISM

PubMed Central

LeBlanc, Linda A; Losowski-Sullivan, Sheryl; Riley, Andrew R

2010-01-01

Although the awareness of autism in the general public has increased significantly over the past 20 years, much of the widely disseminated information is not fully grounded in scientific fact. In The Science and Fiction of Autism (2005), Laura Schreibman addresses a series of debates and controversies in areas ranging from diagnostic practices and etiological theories to effective clinical practices. This book provides an overview of the field of autism that is suitable for well-educated parents and new professionals in the field.
A quantification method for heat-decomposable methylglyoxal oligomers and its application on 1,3,5-trimethylbenzene SOA

NASA Astrophysics Data System (ADS)

Rodigast, Maria; Mutzel, Anke; Herrmann, Hartmut

2017-03-01

Methylglyoxal forms oligomeric compounds in the atmospheric aqueous particle phase, which could establish a significant contribution to the formation of aqueous secondary organic aerosol (aqSOA). Thus far, no suitable method for the quantification of methylglyoxal oligomers is available despite the great effort spent for structure elucidation. In the present study a simplified method was developed to quantify heat-decomposable methylglyoxal oligomers as a sum parameter. The method is based on the thermal decomposition of oligomers into methylglyoxal monomers. Formed methylglyoxal monomers were detected using PFBHA (o-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine hydrochloride) derivatisation and gas chromatography-mass spectrometry (GC/MS) analysis. The method development was focused on the heating time (varied between 15 and 48 h), pH during the heating process (pH = 1-7), and heating temperature (50, 100 °C). The optimised values of these method parameters are presented. The developed method was applied to quantify heat-decomposable methylglyoxal oligomers formed during the OH-radical oxidation of 1,3,5-trimethylbenzene (TMB) in the Leipzig aerosol chamber (LEipziger AerosolKammer, LEAK). Oligomer formation was investigated as a function of seed particle acidity and relative humidity. A fraction of heat-decomposable methylglyoxal oligomers of up to 8 % in the produced organic particle mass was found, highlighting the importance of those oligomers formed solely by methylglyoxal for SOA formation. Overall, the present study provides a new and suitable method for quantification of heat-decomposable methylglyoxal oligomers in the aqueous particle phase.
Tutors' opinions of suitability of online learning programmes in continuing professional development for midwives.

PubMed

Gould, Dinah; Papadopoulos, Irena; Kelly, Daniel

2014-04-01

Online learning is frequently used in continuing professional development for qualified nurses and midwives. It is frequently assumed that the same package is appropriate for different groups of learners and that by reducing the need for tutorial input, tutorial time is saved. We evaluated the suitability of an online learning resource for suitability in continuing professional development for midwives. Originally developed for use as part of a work-based package for a specific audience, there had always been plans for more general use of the resource with other groups of health workers. Sequential mixed methods study. English universities. Seventy university tutors. Online questionnaire and in-depth interviews. Tutors did not consider that the online learning materials would be suitable for a wider audience without significant adaptation. They thought that uptake would increase need for tutorial input. Our findings demonstrate the pitfalls of removing learning from the context of practice. Technology customised to meet the needs of one group of learners probably does not have the potential for transfer to another group without significant adaptation. Those responsible for designing e-learning should take into account the needs of all the different audiences for whom the resource is intended from the outset, with consideration for the context in which learning will be applied to practice and how students will be supported. If the same package is to be used by different audiences and in different settings, tutors and students will require explicit instructions of how they should use the resource and depth of knowledge and level of competency that should be attained at the conclusion of the programme. Copyright © 2013 Elsevier Ltd. All rights reserved.
A Resource-Based Modelling Framework to Assess Habitat Suitability for Steppe Birds in Semiarid Mediterranean Agricultural Systems

PubMed Central

Cardador, Laura; De Cáceres, Miquel; Bota, Gerard; Giralt, David; Casas, Fabián; Arroyo, Beatriz; Mougeot, François; Cantero-Martínez, Carlos; Moncunill, Judit; Butler, Simon J.; Brotons, Lluís

2014-01-01

European agriculture is undergoing widespread changes that are likely to have profound impacts on farmland biodiversity. The development of tools that allow an assessment of the potential biodiversity effects of different land-use alternatives before changes occur is fundamental to guiding management decisions. In this study, we develop a resource-based model framework to estimate habitat suitability for target species, according to simple information on species’ key resource requirements (diet, foraging habitat and nesting site), and examine whether it can be used to link land-use and local species’ distribution. We take as a study case four steppe bird species in a lowland area of the north-eastern Iberian Peninsula. We also compare the performance of our resource-based approach to that obtained through habitat-based models relating species’ occurrence and land-cover variables. Further, we use our resource-based approach to predict the effects that change in farming systems can have on farmland bird habitat suitability and compare these predictions with those obtained using the habitat-based models. Habitat suitability estimates generated by our resource-based models performed similarly (and better for one study species) than habitat based-models when predicting current species distribution. Moderate prediction success was achieved for three out of four species considered by resource-based models and for two of four by habitat-based models. Although, there is potential for improving the performance of resource-based models, they provide a structure for using available knowledge of the functional links between agricultural practices, provision of key resources and the response of organisms to predict potential effects of changing land-uses in a variety of context or the impacts of changes such as altered management practices that are not easily incorporated into habitat-based models. PMID:24667825
Surgical innovation: the ethical agenda: A systematic review.

PubMed

Broekman, Marike L; Carrière, Michelle E; Bredenoord, Annelien L

2016-06-01

The aim of the present article was to systematically review the ethics of surgical innovation and introduce the components of the learning health care system to guide future research and debate on surgical innovation.Although the call for evidence-based practice in surgery is increasingly high on the agenda, most surgeons feel that the format of the randomized controlled trial is not suitable for surgery. Innovation in surgery has aspects of, but should be distinguished from both research and clinical care and raises its own ethical challenges.To answer the question "What are the main ethical aspects of surgical innovation?", we systematically searched PubMed and Embase. Papers expressing an opinion, point of view, or position were included, that is, normative ethical papers.We included 59 studies discussing ethical aspects of surgical innovation. These studies discussed 4 major themes: oversight, informed consent, learning curve, and vulnerable patient groups. Although all papers addressed the ethical challenges raised by surgical innovation, surgeons hold no uniform view of surgical innovation, and there is no agreement on the distinction between innovation and research. Even though most agree to some sort of oversight, they offer different alternatives ranging from the formation of new surgical innovation committees to establishing national registries. Most agree that informed consent is necessary for innovative procedures and that surgeons should be adequately trained to assure their competence to tackle the learning curve problem. All papers agree that in case of vulnerable patients, alternatives must be found for the informed consent procedure.We suggest that the concept of the learning health care system might provide guidance for thinking about surgical innovation. The underlying rationale of the learning health care system is to improve the quality of health care by embedding research within clinical care. Two aspects of a learning health care system might particularly enrich the necessary future discussion on surgical innovation: integration of research and practice and a moral emphasis on "learning activities." Future research should evaluate whether the learning health care system and its adjacent moral framework provides ethical guidance for evidence-based surgery.
[Role of the diet in urinary stone formation and prevalence].

PubMed

Szendrői, Attila; Tordé, Ákos; Vargha, Judit; Bánfi, Gergely; Horváth, András; Horváth, Csaba; Nyirády, Péter

2017-06-01

In Hungary and in the developed countries urinary stones occur more often due to nutritional habits, obesity and sedentary lifestyle beside the endocrine and metabolic causes. In the daily urological and family doctor practice prevention should have an important role. Prevention is based not only on body weight control, physical exercise and medical treatment, but on proper diet as well. The nutritional components can change the consistence of urine, causing supersaturation, which is essential in stone formation. Specific nutritional components can either prevent stone formation (increased fluid intake, citrate, magnesium, fruits and vegetables) or either increase stone formation (decreased fluid intake, proteins, carbohydrates, oxalate, salt, increased calcium intake, ascorbic-acid etc). We summarized evidence-based practical dietary suggestions on the primary and secondary prevention of urinary stones. Orv Hetil. 2017; 158(22): 851-855.
Texture formation mechanism and constitutive equation for anisotropic thermorheological rare-earth permanent magnets

NASA Astrophysics Data System (ADS)

Zhu, Minggang; Li, Wei

2017-05-01

The study investigates the mechanism and constitutive equations describing oriented texture formation in anisotropic thermorheological rare-earth permanent magnets. The thermorheological process cannot be considered as creep, since the related phenomena are not suitably explained by the diffusion creep model. A mathematical model describing the relationship between the rheological deformation rate and texture orientation was established, and a theoretical expression was obtained for the orientation factor of thermorheological magnets. In addition, nanocrystalline Nd-Fe-B magnets were fabricated, with intrinsic coercivity Hcj=760.1 kA/m, remanence Br=1.469 T, and maximum energy product (BH)max=427.1 kJ/m3.
Walking over 4 Gya: Chemical Evolution from Photochemistry to Mineral and Organic Chemistries Leading to an RNA World

NASA Astrophysics Data System (ADS)

Kawamura, Kunio; Maurel, Marie-Christine

2017-09-01

Here we overview the chemical evolution of RNA molecules from inorganic material through mineral-mediated RNA formation compatible with the plausible early Earth environments. Pathways from the gas-phase reaction to the formation of nucleotides, activation and oligomerization of nucleotides, seem to be compatible with specific environments. However, how these steps interacted is not clear since the chemical conditions are frequently different and can be incompatible between them; thus the products would have migrated from one place to another, suitable for further chemical evolution. In this review, we summarize certain points to scrutinize the RNA World hypothesis.
The Development of Interactive Mathematics Learning Material Based on Local Wisdom with .swf Format

NASA Astrophysics Data System (ADS)

Abadi, M. K.; Asih, E. C. M.; Jupri, A.

2018-05-01

Learning materials used by students and schools in Serang district are lacking because they do not contain local wisdom content. The aim of this study is to improve the deficiencies in learning materials used by students by making interactive materials based on local wisdom content with format .swf. The method in this research is research and development (RnD) with ADDIE model. In making this interactive learning materials in accordance with the stages of the ADDIE study. The results of this study include interactive learning materials based on local wisdom. This learning material is suitable for digital students.
Dual Language Graduates' Participation in Bilingual and Biliterate Communities of Practice across Time and Space

ERIC Educational Resources Information Center

Granados, Nadia Regina

2015-01-01

Through a Communities of Practice Network Analysis, this research illustrates the ways in which dual language graduates participate in multiple, varied, and overlapping communities of practice across time. Findings highlight that the dual language school as a shared community of practice represents a critical and formative part of participants'…
Collaborative Action Research as a Tool for Generating Formative Feedback on Teachers' Classroom Assessment Practice: The KREST Project

ERIC Educational Resources Information Center

Harrison, Christine

2013-01-01

This paper sets out to explore science teachers' classroom assessment practices and outlines some of the tensions and synergies in changing assessment practices. It describes episodes from a collaborative action research project with science teachers designed to support the strengthening of classroom assessment practices--the King's Researching…
Practicing a New Curriculum in Turkey: Loose Coupling, Organisational and Social Milieus, and Their Practical Capital Formations

ERIC Educational Resources Information Center

Nohl, Arnd-Michael; Somel, R. Nazli

2016-01-01

This paper analyses tuitional practices after a major curriculum change (2005) in primary schools of Turkey. Group discussions conducted with teachers and parents in five maximally contrasting schools (e.g. schools in a squatter and a middle-class neighbourhood of Istanbul) show that tuitional practices, being only "loosely coupled" with…
New Possibilities in the Fabrication of Hybrid Components with Big Dimensions by Means of Selective Laser Melting (SLM)

NASA Astrophysics Data System (ADS)

Ascari, A.; Fortunato, A.; Liverani, E.; Gamberoni, A.; Tomesani, L.

The application of laser technology to welding of dissimilar AISI316 stainless steel components manufactured with selective laser melting (SLM) and traditional methods has been investigated. The role of laser parameters on weld bead formation has been studied experimentally, with particular attention placed on effects occurring at the interface between the two parts. In order to assess weld bead characteristics, standardised tensile tests were carried out on suitable specimens and the fracture zone was analysed. The results highlighted the possibility of exploiting suitable process parameters to appropriately shape the heat affected and fusion zones in order to maximise the mechanical performance of the component and minimise interactions between the two parent metals in the weld bead.
A novel assay for monoacylglycerol hydrolysis suitable for high-throughput screening.

PubMed

Brengdahl, Johan; Fowler, Christopher J

2006-12-01

A simple assay for monoacylglycerol hydrolysis suitable for high-throughput screening is described. The assay uses [(3)H]2-oleoylglycerol as substrate, with the tritium label in the glycerol part of the molecule and the use of phenyl sepharose gel to separate the hydrolyzed product ([(3)H]glycerol) from substrate. Using cytosolic fractions derived from rat cerebella as a source of hydrolytic activity, the assay gives the appropriate pH profile and sensitivity to inhibition with compounds known to inhibit hydrolysis of this substrate. The assay could also be adapted to a 96-well plate format, using C6 cells as the source of hydrolytic activity. Thus the assay is simple and appropriate for high-throughput screening of inhibitors of monoacylglycerol hydrolysis.
Study on suitable for regeneration system of genetic transformation of kiwifruit

NASA Astrophysics Data System (ADS)

Yuan, Yun Xiang

2011-02-01

The stems of Actinidia Qinmei were taken as explants and induced callus formation after having gained the aseptic seedling in primary culture successfully, and then the calli were placed on different combinations regeneration medium. The results showed that the induction medium added 1 mg/L 6-BA and 0.1 mg/L NAA was beneficial to the callus induction in dark culture condition. The suitable regeneration medium was MS containing 2.0 mg/L 6BA, 0.1 mg/L NAA and 3% (W/V) sucrose, it could improve obviously the frequency of regenerated shoots. This method separated the callus induction from shoot regeneration and obtained more callus to optimize the regenerated medium, and also was advantageous to Kiwifruit genetic transformation.
Area laser crystallized LTPS TFTs with implanted contacts for active matrix OLED displays

NASA Astrophysics Data System (ADS)

Persidis, Efstathios; Baur, Holger; Pieralisi, Fabio; Schalberger, Patrick; Fruehauf, Norbert

2008-03-01

We have developed a four mask low temperature poly-Si (LTPS) TFT process for p- and n-channel devices. Our PECVD deposited amorphous silicon is recrystallized to polycrystalline silicon with single area excimer laser crystallization while formation of drain and source is carried out with self aligned ion beam implantation. We have investigated implantation parameters, suitability of various metallizations as well as laser activation and annealing procedures. To prove the potential capability of our devices, which are suitable for conventional and inverted OLEDs alike, we have produced several functional active matrix backplanes implementing different pixel circuits. Our active matrix backplane process has been customized to drive small molecules as well as polymers, regardless if top or bottom emitting.
Generation of ultra-long pure magnetization needle and multiple spots by phase modulated doughnut Gaussian beam

NASA Astrophysics Data System (ADS)

Udhayakumar, M.; Prabakaran, K.; Rajesh, K. B.; Jaroszewicz, Z.; Belafhal, Abdelmajid; Velauthapillai, Dhayalan

2018-06-01

Based on vector diffraction theory and inverse Faraday effect (IFE), the light induced magnetization distribution of a tightly focused azimuthally polarized doughnut Gaussian beam superimposed with a helical phase and modulated by an optimized multi belt complex phase filter (MBCPF) is analysed numerically. It is noted that by adjusting the radii of different rings of the complex phase filter, one can achieve many novel magnetization focal distribution such as sub wavelength scale (0.29λ) and super long (52.2λ) longitudinal magnetic probe suitable for all optical magnetic recording and the formation of multiple magnetization chain with four, six and eight sub-wavelength spherical magnetization spots suitable for multiple trapping of magnetic particles are achieved.

Some links on this page may take you to non-federal websites. Their policies may differ from this site.