Exploring the Role of Social Media and Individual Behaviors in Flood Evacuation Processes: An Agent-Based Modeling Approach

NASA Astrophysics Data System (ADS)

Du, Erhu; Cai, Ximing; Sun, Zhiyong; Minsker, Barbara

2017-11-01

Flood warnings from various information sources are important for individuals to make evacuation decisions during a flood event. In this study, we develop a general opinion dynamics model to simulate how individuals update their flood hazard awareness when exposed to multiple information sources, including global broadcast, social media, and observations of neighbors' actions. The opinion dynamics model is coupled with a traffic model to simulate the evacuation processes of a residential community with a given transportation network. Through various scenarios, we investigate how social media affect the opinion dynamics and evacuation processes. We find that stronger social media can make evacuation processes more sensitive to the change of global broadcast and neighbor observations, and thus, impose larger uncertainty on evacuation rates (i.e., a large range of evacuation rates corresponding to sources of information). For instance, evacuation rates are lower when social media become more influential and individuals have less trust in global broadcast. Stubborn individuals can significantly affect the opinion dynamics and reduce evacuation rates. In addition, evacuation rates respond to the percentage of stubborn agents in a nonlinear manner, i.e., above a threshold, the impact of stubborn agents will be intensified by stronger social media. These results highlight the role of social media in flood evacuation processes and the need to monitor social media so that misinformation can be corrected in a timely manner. The joint impacts of social media, quality of flood warnings, and transportation capacity on evacuation rates are also discussed.

Regenerating an Arsenic Removal Iron-Based Adsorptive ...

EPA Pesticide Factsheets

Adsorptive media technology is a frequently used method of removing arsenic by small water systems because of its simplicity and efficiency. Current practice is to replace the media when it no longer reduces arsenic below the USEPA drinking water maximum contaminant level (MCL) of 10 µg/L. Media replacement typically accounts for approximately 80% of the total operational and maintenance (O/M) costs. This cost can be substantial and cost prohibitive for many small systems. One potential option to reduce the cost is on-site regeneration and reuse of the media. To evaluate the regeneration option, three consecutive regeneration studies were conducted on a full scale 295 gpm arsenic removal adsorptive media system. This paper, of a two part series, describes the regeneration process and its effectiveness to strip the arsenic and other contaminants from an exhausted media. The results of the regeneration studies found that a three step regeneration process of media backwash, caustic regeneration and acid neutralization/conditioning is very effective for stripping arsenic and other contaminants from the exhaustive media of a full scale arsenic removal system This paper, of a two part series, describes the regeneration process and its effectiveness to strip the arsenic and other contaminants from an exhausted media

Composite media for ion processing

DOEpatents

Mann, Nick R [Blackfoot, ID; Wood, Donald J [Peshastin, WA; Todd, Terry A [Aberdeen, ID; Sebesta, Ferdinand [Prague, CZ

2009-12-08

Composite media, systems, and devices for substantially removing, or otherwise processing, one or more constituents of a fluid stream. The composite media comprise a plurality of beads, each having a matrix substantially comprising polyacrylonitrile (PAN) and supporting one or more active components which are effective in removing, by various mechanisms, one or more constituents from a fluid stream. Due to the porosity and large surface area of the beads, a high level of contact is achieved between composite media of the present invention and the fluid stream being processed. Further, the homogeneity of the beads facilitates use of the beads in high volume applications where it is desired to effectively process a large volume of flow per unit of time.

Otitis Media in Early Childhood and Its Relationship to Later Phonological Development.

ERIC Educational Resources Information Center

Roberts, Joanne Erwick; And Others

1988-01-01

Examination of 55 socioeconomically disadvantaged children found no significant relationship between otitis media in early childhood and number of common phonological processes or consonants in error used during preschool years. However, otitis media in early childhood was associated with total number of phonological processes used by children…

Social Media Social Comparison of Ability (but not Opinion) Predicts Lower Identity Clarity: Identity Processing Style as a Mediator.

PubMed

Yang, Chia-Chen; Holden, Sean M; Carter, Mollie D K

2018-01-11

Social comparison on social media has received increasing attention, but most research has focused on one type of social comparison and its psycho-emotional implications. Little is known about how different types of social comparison influence youth's identity development. Drawing on the theories of identity processing styles and social comparison, we examined how two different forms of social comparison on social media related to three identity processing styles, which in turn predicted youth's global self-esteem and identity clarity. We surveyed 219 college freshmen (M age  = 18.29; 74% female) once in the Fall and once in the Spring. Social comparison of ability on social media was related to concurrent diffuse-avoidant identity processing style, which predicted lower identity clarity months later. In contrast, social comparison of opinion on social media did not influence college freshmen's global self-esteem and identity clarity through identity processing styles. The findings clarified the implications of online social comparison for youth's identity development.

Improving titer while maintaining quality of final formulated drug substance via optimization of CHO cell culture conditions in low-iron chemically defined media.

PubMed

Xu, Jianlin; Rehmann, Matthew S; Xu, Xuankuo; Huang, Chao; Tian, Jun; Qian, Nan-Xin; Li, Zheng Jian

2018-04-01

During biopharmaceutical process development, it is important to improve titer to reduce drug manufacturing costs and to deliver comparable quality attributes of therapeutic proteins, which helps to ensure patient safety and efficacy. We previously reported that relative high-iron concentrations in media increased titer, but caused unacceptable coloration of a fusion protein during early-phase process development. Ultimately, the fusion protein with acceptable color was manufactured using low-iron media, but the titer decreased significantly in the low-iron process. Here, long-term passaging in low-iron media is shown to significantly improve titer while maintaining acceptable coloration during late-phase process development. However, the long-term passaging also caused a change in the protein charge variant profile by significantly increasing basic variants. Thus, we systematically studied the effect of media components, seed culture conditions, and downstream processing on productivity and quality attributes. We found that removing β-glycerol phosphate (BGP) from basal media reduced basic variants without affecting titer. Our goals for late-phase process development, improving titer and matching quality attributes to the early-phase process, were thus achieved by prolonging seed culture age and removing BGP. This process was also successfully scaled up in 500-L bioreactors. In addition, we demonstrated that higher concentrations of reactive oxygen species were present in the high-iron Chinese hamster ovary cell cultures compared to that in the low-iron cultures, suggesting a possible mechanism for the drug substance coloration caused by high-iron media. Finally, hypotheses for the mechanisms of titer improvement by both high-iron and long-term culture are discussed.

Theological Media Literacy Education and Hermeneutic Analysis of Soviet Audiovisual Anti-Religious Media Texts in Students' Classroom

ERIC Educational Resources Information Center

Fedorov, Alexander

2015-01-01

This article realized the Russian way of theological media education literacy and hermeneutic analysis of specific examples of Soviet anti-religious audiovisual media texts: a study of the process of interpretation of these media texts, cultural and historical factors influencing the views of the media agency/authors. The hermeneutic analysis…

Media Education of Future Native Language Teachers: Experience of Germany and Ukraine

ERIC Educational Resources Information Center

Yachmenyk, Maryna

2014-01-01

The achievements of media education in higher education of Germany have been highlighted. The notions of media education that exist in scientific literature have been outlined. Media education has been defined as a direction in pedagogy (media pedagogy) aimed at an individual's media-culture formation in society, as well as a process of…

Media Accounts of School Performance: Reinforcing Dominant Practices of Accountability

ERIC Educational Resources Information Center

Baroutsis, Aspa

2016-01-01

Media reportage often act as interpretations of accountability policies thereby making the news media a part of the policy enactment process. Within such a process, their role is that of policy reinforcement rather than policy construction or contestation. This paper draws on the experiences of school leaders in regional Queensland, Australia, and…

Learning and Collective Knowledge Construction with Social Media: A Process-Oriented Perspective

ERIC Educational Resources Information Center

Kimmerle, Joachim; Moskaliuk, Johannes; Oeberst, Aileen; Cress, Ulrike

2015-01-01

Social media are increasingly being used for educational purposes. The first part of this article briefly reviews literature that reports on educational applications of social media tools. The second part discusses theories that may provide a basis for analyzing the processes that are relevant for individual learning and collective knowledge…

Psychological Processes Promoting the Relation Between Exposure to Media Violence and Aggressive Behavior by the Viewer.

ERIC Educational Resources Information Center

Huesmann, L. Rowell

1986-01-01

Argues that the effect of media violence on individual differences in aggression is primarily the result of a cumulative learning process during childhood. Presents a developmental theory holding that a child's repeated viewing of media violence, in combination with other factors, can culminate in aggressive behavior patterns (including…

An agent-based modelling framework to explore the role of social media and stubborn people on evacuation rates during flooding events

NASA Astrophysics Data System (ADS)

Du, E.; Cai, X.; Minsker, B. S.; Sun, Z.

2017-12-01

Flood warnings from various information sources are important for individuals to make evacuation decisions during a flood event. In this study, we develop a general opinion dynamics model to simulate how individuals update their flood hazard awareness when exposed to multiple information sources, including global broadcast, social media, and observations of neighbors' actions. The opinion dynamics model is coupled with a traffic model to simulate the evacuation processes of a residential community with a given transportation network. Through various scenarios, we investigate how social media affect the opinion dynamics and evacuation processes. We find that stronger social media can make evacuation processes more sensitive to the change of global broadcast and neighbor observations, and thus, impose larger uncertainty on evacuation rates (i.e., a large range of evacuation rates corresponding to sources of information). For instance, evacuation rates are lower when social media become more influential and individuals have less trust in global broadcast. Stubborn individuals can significantly affect the opinion dynamics and reduce evacuation rates. In addition, evacuation rates respond to the percentage of stubborn agents in a non-linear manner, i.e., above a threshold, the impact of stubborn agents will be intensified by stronger social media. These results highlight the role of social media in flood evacuation processes and the need to monitor social media so that misinformation can be corrected in a timely manner. The joint impacts of social media, quality of flood warnings and transportation capacity on evacuation rates are also discussed.

Developing quartz wafer mold manufacturing process for patterned media

NASA Astrophysics Data System (ADS)

Chiba, Tsuyoshi; Fukuda, Masaharu; Ishikawa, Mikio; Itoh, Kimio; Kurihara, Masaaki; Hoga, Morihisa

2009-04-01

Recently, patterned media have gained attention as a possible candidate for use in the next generation of hard disk drives (HDD). Feature sizes on media are predicted to be 20-25 nm half pitch (hp) for discrete-track media in 2010. One method of fabricating such a fine pattern is by using a nanoimprint. The imprint mold for the patterned media is created from a 150-millimeter, rounded, quartz wafer. The purpose of the process introduced here was to construct a quartz wafer mold and to fabricate line and space (LS) patterns at 24 nmhp for DTM. Additionally, we attempted to achieve a dense hole (HOLE) pattern at 12.5 nmhp for BPM for use in 2012. The manufacturing process of molds for patterned media is almost the same as that for semiconductors, with the exception of the dry-etching process. A 150-millimeter quartz wafer was etched on a special tray made from carving a 6025 substrate, by using the photo-mask tool. We also optimized the quartz etching conditions. As a result, 24 nmhp LS and HOLE patterns were manufactured on the quartz wafer. In conclusion, the quartz wafer mold manufacturing process was established. It is suggested that the etching condition should be further optimized to achieve a higher resolution of HOLE patterns.

Public Speaking Pedagogy in the Media Age.

ERIC Educational Resources Information Center

Haynes, W. Lance

1990-01-01

Asserts that media systems and pedagogy affect each other, that electronic media increasingly dominate the society, and that pedagogy must respond. Outlines a heuristic model for talking and thinking pedagogically about the process of speech in the electronic media environment. (MG)

High-density patterned media fabrication using jet and flash imprint lithography

NASA Astrophysics Data System (ADS)

Ye, Zhengmao; Ramos, Rick; Brooks, Cynthia; Simpson, Logan; Fretwell, John; Carden, Scott; Hellebrekers, Paul; LaBrake, Dwayne; Resnick, Douglas J.; Sreenivasan, S. V.

2011-04-01

The Jet and Flash Imprint Lithography (J-FIL®) process uses drop dispensing of UV curable resists for high resolution patterning. Several applications, including patterned media, are better, and more economically served by a full substrate patterning process since the alignment requirements are minimal. Patterned media is particularly challenging because of the aggressive feature sizes necessary to achieve storage densities required for manufacturing beyond the current technology of perpendicular recording. In this paper, the key process steps for the application of J-FIL to pattern media fabrication are reviewed with special attention to substrate cleaning, vapor adhesion of the adhesion layer and imprint performance at >300 disk per hour. Also discussed are recent results for imprinting discrete track patterns at half pitches of 24nm and bit patterned media patterns at densities of 1 Tb/in2.

Learning and Collective Knowledge Construction With Social Media: A Process-Oriented Perspective

PubMed Central

Kimmerle, Joachim; Moskaliuk, Johannes; Oeberst, Aileen; Cress, Ulrike

2015-01-01

Social media are increasingly being used for educational purposes. The first part of this article briefly reviews literature that reports on educational applications of social media tools. The second part discusses theories that may provide a basis for analyzing the processes that are relevant for individual learning and collective knowledge construction. We argue that a systems-theoretical constructivist approach is appropriate to examine the processes of educational social media use, namely, self-organization, the internalization of information, the externalization of knowledge, and the interplay of externalization and internalization providing the basis of a co-evolution of cognitive and social systems. In the third part we present research findings that illustrate and support this systems-theoretical framework. Concluding, we discuss the implications for educational design and for future research on learning and collective knowledge construction with social media. PMID:26246643

Bio-objects and the media: the role of communication in bio-objectification processes.

PubMed

Maeseele, Pieter; Allgaier, Joachim; Martinelli, Lucia

2013-06-01

The representation of biological innovations in and through communication and media practices is vital for understanding the nature of "bio-objects" and the process we call "bio-objectification." This paper discusses two ideal-typical analytical approaches based on different underlying communication models, ie, the traditional (science- and media-centered) and media sociological (a multi-layered process involving various social actors in defining the meanings of scientific and technological developments) approach. In this analysis, the latter is not only found to be the most promising approach for understanding the circulation, (re)production, and (re)configuration of meanings of bio-objects, but also to interpret the relationship between media and science. On the basis of a few selected examples, this paper highlights how media function as a primary arena for the (re)production and (re)configuration of scientific and biomedical information with regards to bio-objects in the public sphere in general, and toward decision-makers, interest groups, and the public in specific.

Bio-objects and the media: the role of communication in bio-objectification processes

PubMed Central

Maeseele, Pieter; Allgaier, Joachim; Martinelli, Lucia

2013-01-01

The representation of biological innovations in and through communication and media practices is vital for understanding the nature of “bio-objects” and the process we call “bio-objectification.” This paper discusses two ideal-typical analytical approaches based on different underlying communication models, ie, the traditional (science- and media-centered) and media sociological (a multi-layered process involving various social actors in defining the meanings of scientific and technological developments) approach. In this analysis, the latter is not only found to be the most promising approach for understanding the circulation, (re)production, and (re)configuration of meanings of bio-objects, but also to interpret the relationship between media and science. On the basis of a few selected examples, this paper highlights how media function as a primary arena for the (re)production and (re)configuration of scientific and biomedical information with regards to bio-objects in the public sphere in general, and toward decision-makers, interest groups, and the public in specific. PMID:23771763

Multimedia content analysis and indexing: evaluation of a distributed and scalable architecture

NASA Astrophysics Data System (ADS)

Mandviwala, Hasnain; Blackwell, Scott; Weikart, Chris; Van Thong, Jean-Manuel

2003-11-01

Multimedia search engines facilitate the retrieval of documents from large media content archives now available via intranets and the Internet. Over the past several years, many research projects have focused on algorithms for analyzing and indexing media content efficiently. However, special system architectures are required to process large amounts of content from real-time feeds or existing archives. Possible solutions include dedicated distributed architectures for analyzing content rapidly and for making it searchable. The system architecture we propose implements such an approach: a highly distributed and reconfigurable batch media content analyzer that can process media streams and static media repositories. Our distributed media analysis application handles media acquisition, content processing, and document indexing. This collection of modules is orchestrated by a task flow management component, exploiting data and pipeline parallelism in the application. A scheduler manages load balancing and prioritizes the different tasks. Workers implement application-specific modules that can be deployed on an arbitrary number of nodes running different operating systems. Each application module is exposed as a web service, implemented with industry-standard interoperable middleware components such as Microsoft ASP.NET and Sun J2EE. Our system architecture is the next generation system for the multimedia indexing application demonstrated by www.speechbot.com. It can process large volumes of audio recordings with minimal support and maintenance, while running on low-cost commodity hardware. The system has been evaluated on a server farm running concurrent content analysis processes.

System and method of forming nanostructured ferritic alloy

DOEpatents

Dial, Laura Cerully; DiDomizio, Richard; Alinger, Matthew Joseph; Huang, Shenyan

2016-07-26

A system for mechanical milling and a method of mechanical milling are disclosed. The system includes a container, a feedstock, and milling media. The container encloses a processing volume. The feedstock and the milling media are disposed in the processing volume of the container. The feedstock includes metal or alloy powder and a ceramic compound. The feedstock is mechanically milled in the processing volume using metallic milling media that includes a surface portion that has a carbon content less than about 0.4 weight percent.

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

ERIC Educational Resources Information Center

Lowe, Karen

2003-01-01

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

Organizational Information-Seeking in the Digital Era: A Model of New Media Use, Uncertainty Reduction, Identification and Culture

ERIC Educational Resources Information Center

Ju, Ran

2013-01-01

This dissertation examines the role of new media in individuals' organizational socialization process across cultures. First, this study has explored individuals' use of new media in their organizational socialization process in two countries, China and the United States, to gain a general understanding of the usage patterns. Second, this study…

The Effect of Conflicting Information on Media Skepticism.

ERIC Educational Resources Information Center

Cozzens, Michael D.; Contractor, Noshir S.

1987-01-01

Supports the hypothesis that exposure to nonmediated information that conflicts with information gained from a media source would cause an increase in media skepticism. Suggests that media skepticism may be a useful construct for future research in communication processes and effects. (NKA)

The Analysis of Detective Genre in Media Studies in the Student Audience

ERIC Educational Resources Information Center

Fedorov, Alexander

2011-01-01

Development of skills for the critical analysis of media texts--an important task of media education. However, media literacy practice shows that students have the problems with the discussion/analysis of entertainment genres in the early stages of media studies, for example, the difficulties in the process of understanding and interpreting the…

Examining the sources of variability in cell culture media used for biopharmaceutical production.

PubMed

McGillicuddy, Nicola; Floris, Patrick; Albrecht, Simone; Bones, Jonathan

2018-01-01

Raw materials, in particular cell culture media, represent a significant source of variability to biopharmaceutical manufacturing processes that can detrimentally affect cellular growth, viability and specific productivity or alter the quality profile of the expressed therapeutic protein. The continual expansion of the biopharmaceutical industry is creating an increasing demand on the production and supply chain consistency for cell culture media, especially as companies embrace intensive continuous processing. Here, we provide a historical perspective regarding the transition from serum containing to serum-free media, the development of chemically-defined cell culture media for biopharmaceutical production using industrial scale bioprocesses and review production mechanisms for liquid and powder culture media. An overview and critique of analytical approaches used for the characterisation of cell culture media and the identification of root causes of variability are also provided, including in-depth liquid phase separations, mass spectrometry and spectroscopic methods.

Meta-analytic moderators of experimental exposure to media portrayals of women on female appearance satisfaction: Social comparisons as automatic processes.

PubMed

Want, Stephen C

2009-09-01

Experimental exposure to idealized media portrayals of women is thought to induce social comparisons in female viewers and thereby to be generally detrimental to female viewers' satisfaction with their own appearance. Through meta-analysis, the present paper examines the impact of moderators of this effect, some identified and updated from a prior meta-analysis and some that have hitherto received little attention. Participants' pre-existing appearance concerns and the processing instructions participants were given when exposed to media portrayals were found to significantly moderate effect sizes. With regard to processing instructions, a novel and counter-intuitive pattern was revealed; effect sizes were smallest when participants were instructed to focus on the appearance of women in media portrayals, and largest when participants processed the portrayals on a distracting, non-appearance dimension. These results are interpreted through a framework that suggests that social comparisons are automatic processes, the effects of which can be modified through conscious processing.

Improving media message interpretation processing skills to promote healthy decision making about substance use: the effects of the middle school media ready curriculum.

PubMed

Kupersmidt, Janis B; Scull, Tracy M; Benson, Jessica W

2012-01-01

The Media Ready Program was designed as a middle school, media literacy education, preventive intervention program to improve adolescents' media literacy skills and reduce their intention to use alcohol or tobacco products. In a short-term efficacy trial, schools in North Carolina were randomly assigned to conditions (Media Ready: n = 214; control: n = 198). Boys in the Media Ready group reported significantly less intention to use alcohol in the future than did boys in the control group. Also, students in the Media Ready group who had used tobacco in the past reported significantly less intention to use tobacco in the future than did students in the control group who had previously used tobacco. Multilevel multiple mediation analyses suggest that the set of logical analysis Message Interpretation Processing variables mediated the program's effect on students' intentions to use alcohol or tobacco in the future.

Measurement of gas diffusion coefficient in liquid-saturated porous media using magnetic resonance imaging

NASA Astrophysics Data System (ADS)

Song, Yongchen; Hao, Min; Zhao, Yuechao; Zhang, Liang

2014-12-01

In this study, the dual-chamber pressure decay method and magnetic resonance imaging (MRI) were used to dynamically visualize the gas diffusion process in liquid-saturated porous media, and the relationship of concentration-distance for gas diffusing into liquid-saturated porous media at different times were obtained by MR images quantitative analysis. A non-iterative finite volume method was successfully applied to calculate the local gas diffusion coefficient in liquid-saturated porous media. The results agreed very well with the conventional pressure decay method, thus it demonstrates that the method was feasible of determining the local diffusion coefficient of gas in liquid-saturated porous media at different times during diffusion process.

A Taxonomy of Computer Media in Distance Education.

ERIC Educational Resources Information Center

Chacon, Fabio

1992-01-01

Describes a taxonomy of computer user modes in distance education and identifies three major learning and behavioral processes that are extended by computers: (1) information processing; (2) interaction; and (3) communication. Highlights for each process include the relationship to other media, pedagogical functions, hardware and software, and…

Struggle for Social Position in Digital Media Composition

ERIC Educational Resources Information Center

Doerr-Stevens, Candance

2013-01-01

This study investigates the processes and products of multimodal and multi-authored digital media composition. Using ethnographic case study and Mediated Discourse Analysis (Norris & Jones, 2005), this study focuses specifically on the digital media composition of radio and film documentaries, examining struggle among students, media, and…

Informal Learning through Science Media Usage

ERIC Educational Resources Information Center

Maier, Michaela; Rothmund, Tobias; Retzbach, Andrea; Otto, Lukas; Besley, John C.

2014-01-01

This article reviews current research on informal science learning through news media. Based on a descriptive model of media-based science communication we distinguish between (a) the professional routines by which journalists select and depict scientific information in traditional media and (b) the psychological processes that account for how…

The Media's Role in Political Campaigns. ERIC Digest.

ERIC Educational Resources Information Center

Gottlieb, Stephen S.

This digest examines the relationship between the political process and the media. The digest discusses the ramifications of advertising in politics; the role of the televised debate in elections; individual voter characteristics and the media; and media coverage and campaign awareness. Fifteen references are attached. (RS)

Trait-Treatment Interactions (TTI), Cognitive Processes and Research on Communication Media.

ERIC Educational Resources Information Center

Di Vesta, Francis J.

The Trait Treatment Interaction (TTI) Process approach is particularly adapted to the study of information-processing by receivers of information presented in the media. Differences in people's experiences do lead to different cognitive structures. Different people use the same machinery of perceiving, coding, storing, and retrieving. Neverthless,…

Interaction with Mass Media: The Importance of Rhythm and Tempo.

ERIC Educational Resources Information Center

Snow, Robert P.

1987-01-01

Stresses that understanding the impact of interaction with mass media requires conceptualizing media as an institutionalized social form. A critical feature of this process is the grammatical character of media interaction in the form of rhythm and tempo, because these rhythms and tempos become established in everyday routine. (SKC)

Media Stereotypes Analysis in the Classroom at the Student Audience

ERIC Educational Resources Information Center

Fedorov, Alexander

2015-01-01

Media Stereotypes Analysis is the identification and analysis of stereotypical images of people, ideas, events, stories, themes and etc. in media texts. Media stereotype reflects the well-established attitudes towards a particular object, it is schematic averaged, familiar, stable representation of genres, social processes/events, ideas, people,…

Media Education: Sociology Surveys

ERIC Educational Resources Information Center

Fedorov, Alexander

2007-01-01

In Russia as well as in foreign countries we can witness sort of the confusion of the terms of "media education" and "media literacy". There are quite a few differences in theoretical approaches to media education, to distinguishing of the most important aims, objectives, means of introduction into the teaching process, etc.…

Guidelines for Media Selection.

ERIC Educational Resources Information Center

Heeren, Elske; Verwijs, Carla; Moonen, Jef

This paper presents two types of approaches to media selection--rational-choice approaches and social-influence approaches. It is argued that designers should combine the two types of approaches in a bottom-up/top-down media-selection process. As examples of the two types of approaches, two conceptual frameworks are described--task/media fit and…

From Gutenberg to Gates: Media Matters

ERIC Educational Resources Information Center

Considine, David M.

2009-01-01

Media consolidation and convergence have increasingly changed the way individuals as both consumers and citizens access, process, and communicate information at the local, national, and global levels. Media industries and institutions influence public perception and occupy our time at work and at home more and more. Media literacy has become…

Using Social Media "Smartly" in the Admissions Process

ERIC Educational Resources Information Center

Parrot, Teresa Valerio; Tipton, Stacia

2010-01-01

Admissions officers around the country are hearing consistent calls to enhance their social media presence. Whether the pressure is from administrators, influential alumni, or peers across institutions, social media are touted as the next big thing in admissions marketing. But are social media strategies truly "strategic," or are they merely…

Using media to impact health policy-making: an integrative systematic review.

PubMed

Bou-Karroum, Lama; El-Jardali, Fadi; Hemadi, Nour; Faraj, Yasmine; Ojha, Utkarsh; Shahrour, Maher; Darzi, Andrea; Ali, Maha; Doumit, Carine; Langlois, Etienne V; Melki, Jad; AbouHaidar, Gladys Honein; Akl, Elie A

2017-04-18

Media interventions can potentially play a major role in influencing health policies. This integrative systematic review aimed to assess the effects of planned media interventions-including social media-on the health policy-making process. Eligible study designs included randomized and non-randomized designs, economic studies, process evaluation studies, stakeholder analyses, qualitative methods, and case studies. We electronically searched Medline, EMBASE, Communication and Mass Media Complete, Cochrane Central Register of Controlled Trials, and the WHO Global Health Library. We followed standard systematic review methodology for study selection, data abstraction, and risk of bias assessment. Twenty-one studies met our eligibility criteria: 10 evaluation studies using either quantitative (n = 7) or qualitative (n = 3) designs and 11 case studies. None of the evaluation studies were on social media. The findings of the evaluation studies suggest that media interventions may have a positive impact when used as accountability tools leading to prioritizing and initiating policy discussions, as tools to increase policymakers' awareness, as tools to influence policy formulation, as awareness tools leading to policy adoption, and as awareness tools to improve compliance with laws and regulations. In one study, media-generated attention had a negative effect on policy advocacy as it mobilized opponents who defeated the passage of the bills that the media intervention advocated for. We judged the confidence in the available evidence as limited due to the risk of bias in the included studies and the indirectness of the evidence. There is currently a lack of reliable evidence to guide decisions on the use of media interventions to influence health policy-making. Additional and better-designed, conducted, and reported primary research is needed to better understand the effects of media interventions, particularly social media, on health policy-making processes, and the circumstances under which media interventions are successful. PROSPERO 2015: CRD42015020243.

Practicing Critical Media Literacy Education: Developing a Community of Inquiry among Teachers Using Popular Culture

ERIC Educational Resources Information Center

Flores-Koulish, Stephanie

2010-01-01

Media literacy compels us to look anew at the most mundane, that which surrounds us: the media and our popular culture. From there media literacy compels us to accept that the media are constructed and to seek various ways to analyze them, while considering our own beliefs to evaluate for ourselves an ultimate interpretation. This process has the…

The Effects of Frequency of Media Utilization on Decision Making of Media Choice

ERIC Educational Resources Information Center

Gotoh, Yasushi

2014-01-01

The purpose of this study is to use the Analytic Hierarchy Process in order to identify how frequency of media use in daily life affects decision-making in media choice. 276 university students took part in this research, They were asked to prioritize their ways of obtaining information about current affairs using sets of media such as TV, books,…

Gender, Race and Class in Media. A Text-Reader.

ERIC Educational Resources Information Center

Dines, Gail, Ed.; Humez, Jean M., Ed.

This reader is intended to introduce undergraduates to the richness, sophistication, and diversity that characterize contemporary media scholarship. Another goal is to take the mystery out of the idea of media culture by examining its production, construction, and the meaning-making processes through which media imagery and messages help shape our…

New Media, New Literacies and the Adolescent Learner

ERIC Educational Resources Information Center

Hughes, Janette

2009-01-01

The goal of this research study was to develop a conceptualization of the relationship between new digital media and adolescent students' writing of poetry while immersed in using new media. More specifically, the research focused on the performative affordances of new media and how these interacted with the students' creative processes as they…

Adolescent Room Culture: Studying Media in the Context of Everyday Life.

ERIC Educational Resources Information Center

Steele, Jeanne R.; Brown, Jane D.

1995-01-01

The Adolescents' Media Practice Model is proposed and discussed. The model emphasizes a dialectical process in which the media are important cultural agents with influence on audiences that is amplified and restrained by individuals who interact with the media from their own positions. The model is grounded in "room culture." (SLD)

Do the Media Undermine Democracy?

ERIC Educational Resources Information Center

Dorman, William A.

This paper considers political reasoning within a democracy and how mass media may affect that process, as well as how the perspective and method of critical thinking may be brought to bear on the subject of media and politics. Specifically, the paper (1) discusses some ways in which the mass media may affect political reasoning; (2) offers a…

Composing Focus: Shaping Temporal, Social, Media, Social Media, and Attentional Environments

ERIC Educational Resources Information Center

Fife, Jane

2017-01-01

Writers must learn to control factors that influence the ability to focus, especially in what some call a culture of distraction. In our efforts to promote metacognition and flexible writing processes, writing teachers need to engage students in study and discussion of factors in our temporal, social, media, social media, and attentional…

76 FR 47271 - Implementation of Scientific Integrity Principles: Draft Plan for Public Comment

Federal Register 2010, 2011, 2012, 2013, 2014

2011-08-04

... Communications The Office of Legislative and Public Affairs (OLPA) is the authorized news media liaison for NSF... follows: Media Policy: Purpose This document establishes NSF's media policy governing media communications... conduct our merit review process and make funding decisions to adhere to the highest standards of ethical...

Development of a smoking prevention mass media program using diagnostic and formative research.

PubMed

Worden, J K; Flynn, B S; Geller, B M; Chen, M; Shelton, L G; Secker-Walker, R H; Solomon, D S; Solomon, L J; Couchey, S; Costanza, M C

1988-09-01

The process of developing a mass media campaign to prevent smoking among adolescents is described in detail. This campaign supplements a school smoking prevention program and shares educational objectives with the school program but is otherwise independent. It comprises various television and radio 30- and 60-sec "spot" messages. The campaign development process includes identifying educational objectives and strategies for appealing to young people; conducting diagnostic surveys and focus groups to determine target audience interests and perceptions about smoking and media content; suggesting approaches to producers to create preliminary television and radio messages for testing; conducting formative pretests with target groups to select optimal messages and suggest improvements to those messages; producing final messages for media presentation; and developing a media exposure plan to place messages in local media at optimal times for reception by target audiences. The media campaign is being evaluated in a 5-year project with 5,500 adolescents in four communities to determine the additional effect of mass media over a school program alone in preventing smoking.

Improvement of mammalian cell culture performance through surfactant enabled concentrated feed media.

PubMed

Hossler, Patrick; McDermott, Sean; Racicot, Christopher; Fann, John C H

2013-01-01

The design of basal and feed media in mammalian cell culture is paramount towards ensuring acceptable upstream process performance in various operation modes, especially fed-batch culture. Mammalian cell culture media designs have evolved from the classical formulations designed by Eagle and Ham, to today's formulations designed from continuous improvement and statistical frameworks. Feed media is especially important for ensuring robust cell growth, productivity, and ensuring the product quality of recombinant therapeutics are within acceptable ranges. Numerous studies have highlighted the benefit of various media designs, supplements, and feed addition strategies towards the resulting cell culture process. In this work we highlight the use of a top-down level approach towards feed media design enabled by the use of select surfactants for the targeted enrichment of a chemically defined feed media. The use of the enriched media was able to improve product titers at g/L levels, without adversely impacting the growth of multiple Chinese Hamster Ovary cell lines or the product quality of multiple recombinant antibodies. © 2013 American Institute of Chemical Engineers.

Cataloging, Processing, Administering AV Materials. A Model for Wisconsin Schools. Revised, 1974.

ERIC Educational Resources Information Center

Little, Robert David, Ed.; And Others

The Wisconsin Association of School Librarians has produced a manual for standardized processing of all nonprint media, based on two principles: (1) the media should be centralized, organized, and administered for maximum access; and (2) content is more important than form. Definitions, cataloging, processing, housing, circulation, and care are…

Ion processing element with composite media

DOEpatents

Mann, Nick R.; Tranter, Troy J.; Todd, Terry A.; Sebesta, Ferdinand

2003-02-04

An ion processing element employing composite media disposed in a porous substrate, for facilitating removal of selected chemical species from a fluid stream. The ion processing element includes a porous fibrous glass substrate impregnated by composite media having one or more active components supported by a matrix material of polyacrylonitrile. The active components are effective in removing, by various mechanisms, one or more constituents from a fluid stream passing through the ion processing element. Due to the porosity and large surface area of both the composite medium and the substrate in which it is disposed, a high degree of contact is achieved between the active component and the fluid stream being processed. Further, the porosity of the matrix material and the substrate facilitates use of the ion processing element in high volume applications where it is desired to effectively process a high volume flows.

Ion processing element with composite media

DOEpatents

Mann, Nick R [Blackfoot, ID; Tranter, Troy J [Idaho Falls, ID; Todd, Terry A [Aberdeen, ID; Sebesta, Ferdinand [Prague, CZ

2009-03-24

An ion processing element employing composite media disposed in a porous substrate, for facilitating removal of selected chemical species from a fluid stream. The ion processing element includes a porous fibrous glass substrate impregnated by composite media having one or more active components supported by a matrix material of polyacrylonitrile. The active components are effective in removing, by various mechanisms, one or more constituents from a fluid stream passing through the ion processing element. Due to the porosity and large surface area of both the composite medium and the substrate in which it is disposed, a high degree of contact is achieved between the active component and the fluid stream being processed. Further, the porosity of the matrix material and the substrate facilitates use of the ion processing element in high volume applications where it is desired to effectively process a high volume flows.

Pyrolysis process and apparatus

DOEpatents

Lee, Chang-Kuei

1983-01-01

This invention discloses a process and apparatus for pyrolyzing particulate coal by heating with a particulate solid heating media in a transport reactor. The invention tends to dampen fluctuations in the flow of heating media upstream of the pyrolysis zone, and by so doing forms a substantially continuous and substantially uniform annular column of heating media flowing downwardly along the inside diameter of the reactor. The invention is particularly useful for bituminous or agglomerative type coals.

Analyst Performance Measures. Volume 1: Persistent Surveillance Data Processing, Storage and Retrieval

DTIC Science & Technology

2011-09-01

solutions to address these important challenges . The Air Force is seeking innovative architectures to process and store massive data sets in a flexible...Google Earth, the Video LAN Client ( VLC ) media player, and the Environmental Systems Research Institute corporation‘s (ESRI) ArcGIS product — to...Earth, Quantum GIS, VLC Media Player, NASA WorldWind, ESRI ArcGIS and many others. Open source GIS and media visualization software can also be

Examination of the mass media process and personal factors affecting the assessment of mass media-disseminated health information.

PubMed

Avcı, Kadriye; Çakır, Tülin; Avşar, Zakir; Üzel Taş, Hanife

2015-06-01

This study examined the mass media and personal characteristics leading to health communication inequality as well as the role of certain factors in health communication's mass media process. Using both sociodemographic variables and Maletzke's model as a basis, we investigated the relationship between selected components of the mass communication process, the receiving of reliable health information as a result of health communication, and the condition of its use. The study involved 1853 people in Turkey and was structured in two parts. The first part dealt with questions regarding sociodemographic characteristics, the use of the mass media and the public's ability to obtain health information from it, the public's perception of the trustworthiness of health information, and the state of translating this information into health-promoting behaviours. In the second part, questions related to the mass communication process were posed using a five-point Likert scale. This section tried to establish structural equation modelling using the judgements prepared on the basis of the mass media model. Through this study, it has been observed that sociodemographic factors such as education and age affect individuals' use of and access to communication channels; individuals' trust in and selection of health information from the programme content and their changing health behaviours (as a result of the health information) are related to both their perception of the mass communication process and to sociodemographic factors, but are more strongly related to the former. © The Author(s) 2014.

T700 Blisk and Impeller Manufacturing Process Development Program.

DTIC Science & Technology

1979-11-01

700(40) Reworked Media Temperature - 790 F Average Media Pressure - 200 psi Total Cycles (Test No. 1) - 40 Total Cycles (Test No. 2) - 20 Total Time...36A(73), - 700(40" Media Temperature - 80F Average Media Pressure - 150 psi Total Cycles - 52 Total Time - 95 Minutes Some difficulty was...61)-36A(73)-700( 4O)Media Temperature - 79OF average Media Pressure - 200 psi Time - 40 cycles - 72 minutes Time - 60 cycles - 109 minutes Time - 80

Method to remove uranium/vanadium contamination from groundwater

DOEpatents

Metzler, Donald R.; Morrison, Stanley

2004-07-27

A process for removing uranium/vanadium-based contaminants from groundwater using a primary in-ground treatment media and a pretreatment media that chemically adjusts the groundwater contaminant to provide for optimum treatment by the primary treatment media.

ARSENIC TREATMENT BY ADSORPTIVE TECHNOLOGY

EPA Science Inventory

Presentation will discuss the removal of arsenic from drinking water using the adsorptive media treatment process. Fundamental information is provided on the design and operation of adsorptive media technology including the selection of the adsorptive media. The information cites...

Surface transport processes in charged porous media

DOE PAGES

Gabitto, Jorge; Tsouris, Costas

2017-03-03

Surface transport processes are important in chemistry, colloidal sciences, engineering, biology, and geophysics. Natural or externally produced charges on surfaces create electrical double layers (EDLs) at the solid-liquid interface. The existence of the EDLs produces several complex processes including bulk and surface transport of ions. In this work, a model is presented to simulate bulk and transport processes in homogeneous porous media comprising big pores. It is based on a theory for capacitive charging by ideally polarizable porous electrodes without Faradaic reactions or specific adsorption of ions. A volume averaging technique is used to derive the averaged transport equations inmore » the limit of thin electrical double layers. Description of the EDL between the electrolyte solution and the charged wall is accomplished using the Gouy-Chapman-Stern (GCS) model. The surface transport terms enter into the average equations due to the use of boundary conditions for diffuse interfaces. Two extra surface transports terms appear in the closed average equations. One is a surface diffusion term equivalent to the transport process in non-charged porous media. The second surface transport term is a migration term unique to charged porous media. The effective bulk and transport parameters for isotropic porous media are calculated solving the corresponding closure problems.« less

Surface transport processes in charged porous media

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

Gabitto, Jorge; Tsouris, Costas

Surface transport processes are important in chemistry, colloidal sciences, engineering, biology, and geophysics. Natural or externally produced charges on surfaces create electrical double layers (EDLs) at the solid-liquid interface. The existence of the EDLs produces several complex processes including bulk and surface transport of ions. In this work, a model is presented to simulate bulk and transport processes in homogeneous porous media comprising big pores. It is based on a theory for capacitive charging by ideally polarizable porous electrodes without Faradaic reactions or specific adsorption of ions. A volume averaging technique is used to derive the averaged transport equations inmore » the limit of thin electrical double layers. Description of the EDL between the electrolyte solution and the charged wall is accomplished using the Gouy-Chapman-Stern (GCS) model. The surface transport terms enter into the average equations due to the use of boundary conditions for diffuse interfaces. Two extra surface transports terms appear in the closed average equations. One is a surface diffusion term equivalent to the transport process in non-charged porous media. The second surface transport term is a migration term unique to charged porous media. The effective bulk and transport parameters for isotropic porous media are calculated solving the corresponding closure problems.« less

Automation of Presentation Record Production Based on Rich-Media Technology Using SNT Petri Nets Theory.

PubMed

Martiník, Ivo

2015-01-01

Rich-media describes a broad range of digital interactive media that is increasingly used in the Internet and also in the support of education. Last year, a special pilot audiovisual lecture room was built as a part of the MERLINGO (MEdia-rich Repository of LearnING Objects) project solution. It contains all the elements of the modern lecture room determined for the implementation of presentation recordings based on the rich-media technologies and their publication online or on-demand featuring the access of all its elements in the automated mode including automatic editing. Property-preserving Petri net process algebras (PPPA) were designed for the specification and verification of the Petri net processes. PPPA does not need to verify the composition of the Petri net processes because all their algebraic operators preserve the specified set of the properties. These original PPPA are significantly generalized for the newly introduced class of the SNT Petri process and agent nets in this paper. The PLACE-SUBST and ASYNC-PROC algebraic operators are defined for this class of Petri nets and their chosen properties are proved. The SNT Petri process and agent nets theory were significantly applied at the design, verification, and implementation of the programming system ensuring the pilot audiovisual lecture room functionality.

Automation of Presentation Record Production Based on Rich-Media Technology Using SNT Petri Nets Theory

PubMed Central

Martiník, Ivo

2015-01-01

Rich-media describes a broad range of digital interactive media that is increasingly used in the Internet and also in the support of education. Last year, a special pilot audiovisual lecture room was built as a part of the MERLINGO (MEdia-rich Repository of LearnING Objects) project solution. It contains all the elements of the modern lecture room determined for the implementation of presentation recordings based on the rich-media technologies and their publication online or on-demand featuring the access of all its elements in the automated mode including automatic editing. Property-preserving Petri net process algebras (PPPA) were designed for the specification and verification of the Petri net processes. PPPA does not need to verify the composition of the Petri net processes because all their algebraic operators preserve the specified set of the properties. These original PPPA are significantly generalized for the newly introduced class of the SNT Petri process and agent nets in this paper. The PLACE-SUBST and ASYNC-PROC algebraic operators are defined for this class of Petri nets and their chosen properties are proved. The SNT Petri process and agent nets theory were significantly applied at the design, verification, and implementation of the programming system ensuring the pilot audiovisual lecture room functionality. PMID:26258164

How the News Media Operate in Natural Disasters.

ERIC Educational Resources Information Center

Sood, Rahul; And Others

1987-01-01

Examines news media activities during five natural disasters. Shows how the media and local officials often cooperate and sometimes conflict in accomplishing their respective goals and how this process affects the public's understanding of the disaster event. (NKA)

The Emerging Neuroscience of Social Media.

PubMed

Meshi, Dar; Tamir, Diana I; Heekeren, Hauke R

2015-12-01

Social media use is a global phenomenon, with almost two billion people worldwide regularly using these websites. As Internet access around the world increases, so will the number of social media users. Neuroscientists can capitalize on the ubiquity of social media use to gain novel insights about social cognitive processes and the neural systems that support them. This review outlines social motives that drive people to use social media, proposes neural systems supporting social media use, and describes approaches neuroscientists can use to conduct research with social media. We close by noting important directions and ethical considerations of future research with social media. Copyright © 2015 Elsevier Ltd. All rights reserved.

Critically Redefining and Repositioning Media Texts in Early Childhood Teacher Education: What If? And Why?

ERIC Educational Resources Information Center

Souto-Manning, Mariana; Price-Dennis, Detra

2012-01-01

Given the prevalence of popular media in the lives of young children today, early childhood teacher education stands to benefit from fostering critical media literacy practices. Through the use of critical media literary practices, early childhood teacher educators can facilitate a process whereby preservice teachers learn how to critically…

Digital Media's Transformative Role in Education: Beyond Potential to Essential

ERIC Educational Resources Information Center

Chien, Ming-tso

2012-01-01

Achieving effective learning via digital media continues to be a major concern in contemporary education. The daily use of all forms of digital media is part of our lives and therefore becomes a key component of education. Educators must consider the process of digital media curriculum as a learning model and form of experience adapted to…

The Emotional Impact of Traditional and New Media in Social Events

ERIC Educational Resources Information Center

Salcudean, Minodora; Muresan, Raluca

2017-01-01

In past times, media were the sole vector to reflect in their entire complexity the events surrounding major world tragedies. Nowadays, social media are an essential component of the media process and classical press channels are connected to the social networking flow, where they can find information and, at the same time, tap into the emotional…

Media Literacy Education in Turkey: An Evaluation of Media Processes and Ethical Codes

ERIC Educational Resources Information Center

Elma, Cevat; Kesten, Alper; Dicle, Abdullah N.; Uzun, Elif Mercan

2010-01-01

The purpose of this study is to evaluate school principals', teachers', parents', and students' opinions, arising from participation in a pilot program which used a media literacy curriculum in Turkey. The research population covers all seventh grade students who attended the media literacy course during the 2006-2007 academic year, in five pilot…

Cuban Mass Media: Organization, Control and Functions. Journalism Monographs Number Seventy-Eight.

ERIC Educational Resources Information Center

Nichols, John Spicer

The mass media as interdependent parts of a larger social system both control and are controlled by other subsystems. The various combinations of control, in turn, determine the functions the media system will serve. In the 1960's, the Cuban mass media underwent frequent change that reflected the volatility of the revolutionary process. Today,…

Rejected by Peers--Attracted to Antisocial Media Content: Rejection-Based Anger Impairs Moral Judgment among Adolescents

ERIC Educational Resources Information Center

Plaisier, Xanthe S.; Konijn, Elly A.

2013-01-01

Adolescence is an important developmental stage during which both peers and the media have a strong influence. Both peer rejection and the use of morally adverse media are associated with negative developmental outcomes. This study examines processes by which peer rejection might drive adolescents to select antisocial media content by tying…

A qualitative study of the coverage of influenza vaccination on Dutch news sites and social media websites.

PubMed

Lehmann, Birthe A; Ruiter, Robert A C; Kok, Gerjo

2013-06-05

Information about influenza and the effectiveness of vaccination against influenza is largely available on the Internet, and may influence individual decision making about participation in future influenza vaccination rounds. E-health information has often been found to be inaccurate, or even to contradict Health Authority recommendations, especially when it concerns controversial topics. By means of an online media monitoring programme, Dutch news sites and social media websites were scanned for the Dutch counterparts of the terms influenza, vaccination, vaccine and epidemic during February, March and April 2012. Data were processed with QSR NVivo 8.0 and analysed using a general inductive approach. Three overarching themes were found in both media sources: (1) the (upcoming) influenza epidemic, (2) general information regarding the virus, its prevention and treatment, and (3) uncertainty and mistrust regarding influenza vaccination. Social media tended to report earlier on developments such as the occurrence of an influenza epidemic. The greatest difference was that in social media, influenza was not considered to be a serious disease, and more opposition to the flu shot was expressed in social media, as compared to news media. News media and social media discussed the same topics regarding influenza, but differed in message tone. Whereas news media reports tended to be more objective and non-judgmental, social media more critically evaluated the harmfulness of influenza and the necessity of the flu shot. Media may influence decision making and behaviours of Internet users and may thereby influence the success of vaccination campaigns and recommendations made by health authorities. Social media may be more of a problem in this sense, since it is neither controlled nor censored. Future research should investigate the actual impact of Internet media on the influenza decision making process of its users.

Talking Back to the Media Ideal: The Development and Validation of the Critical Processing of Beauty Images Scale

ERIC Educational Resources Information Center

Engeln-Maddox, Renee; Miller, Steven A.

2008-01-01

This article details the development of the Critical Processing of Beauty Images Scale (CPBI) and studies demonstrating the psychometric soundness of this measure. The CPBI measures women's tendency to engage in critical processing of media images featuring idealized female beauty. Three subscales were identified using exploratory factor analysis…

REVIEW: Excited states in the active media of oxygen — iodine lasers

NASA Astrophysics Data System (ADS)

Azyazov, V. N.

2009-11-01

A review of investigations of kinetic processes in active media oxygen — iodine lasers (OILs) performed in the last decade is presented. The mechanisms of pumping and quenching of electronically and vibrationally excited O2 and I2 molecules are considered, and dissociation mechanisms of I2 in the active medium of the OIL are analysed. The values of kinetic constants of processes proceeding in the active media of OILs are recommended.

Optimizing the Presentation of Mental Health Information in Social Media: The Effects of Health Testimonials and Platform on Source Perceptions, Message Processing, and Health Outcomes.

PubMed

Quintero Johnson, Jessie M; Yilmaz, Gamze; Najarian, Kristy

2017-09-01

Using social media for the purpose of disseminating mental health information is a critical area of scientific inquiry for health communication professionals. The purpose of this study was to investigate whether the presence of a first-person testimonial in educational mental health information placed in Facebook and Twitter messages influenced college students' (N = 257) source perceptions, information processing, cognitive elaboration, health information recall, beliefs, and behavioral intentions. Results show that exposure to social media messages that featured mental health information embedded with a testimonial predicted less source homophily and more critical thoughts about the social media source, less systematic message processing, and less cognitive elaboration. Health information recall was significantly impacted by both the social media platform and message content such that participants in the testimonial condition on Facebook were more likely to recall the health facts in those messages whereas participants who viewed the testimonial in Twitter were less likely to recall the facts in those tweets. Compared to those who read Facebook messages, participants who read Twitter messages reported higher levels of systematic message processing. These findings suggest that the integration of health testimonials into social media messages might inadvertently provoke psychological resistance to mental health information, thereby reducing the persuasive impact of those messages.

Technological effect of vibroprocessing by flows of organic granular media

NASA Astrophysics Data System (ADS)

Lebedev, V. A.; Shishkina, A. P.; Davydova, I. V.; Morozova, A. V.

2018-03-01

The analysis of approaches to modeling of vibrational processing by granulated media is carried out. The vibroprocessing model which provides effective finishing of the surfaces of the parts due to the stone fruit organic media granules is developed. The model is based on the granule flow energy impact on the surface being treated. As the main characteristic of the organic media processing, a specific volumetric metal scrap is used, the physical meaning of which is the increase rate in the thickness of the material removed from the surface at a given velocity and pressure of the medium. It is shown that the metal scrap depends on the medium flow velocity, the height of the loading column of the granular medium, and the conditions for the formation of a medium stationary circulation motion. Based on the analysis of the results of experimental studies of the influence of amplitude-frequency characteristics on the removal of metal in the process of vibroprocessing with abrasive granules, the dependence of the specific volume metal removal is proposed for organic media processing, taking into account the threshold amplitude and frequency of oscillations of the working chamber, at which the effect of surface treatment is observed. The established set of relationships describing the effective conditions for vibroprocessing with stone organic media was obtained using experimental data, which allows us to assume that the model obtained is valid.

Repetitive Regeneration of Media #1 in a Dynamic Column Extraction using Brine #1

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

Gary Garland

This data is from a regeneration study from a dynamic column extraction experiment where we ran a solution of REE's through a column of media #1 then stripped the REE's off the media using 2M HNO3 solution. We then re-equilibrated the media and repeated the process of running a REE solution through the column and stripping the REE's off the media and comparing the two runs.

Choosing Training Delivery Media.

ERIC Educational Resources Information Center

Hybert, Peter R.

2000-01-01

Focuses on decisionmaking about delivery media, and introduces CADDI's Performance-based, Accelerated, Customer-Stakeholder-driven Training & Development(SM) (PACT) Processes for training and development (T&D). Describes the media decisions that correspond with the design three levels of PACT: Curriculum Architecture Design, Modular Curriculum…

Framing access to medicines in developing countries: an analysis of media coverage of Canada's Access to Medicines Regime.

PubMed

Esmail, Laura C; Phillips, Kaye; Kuek, Victoria; Cosio, Andrea Perez; Kohler, Jillian Clare

2010-01-04

In September 2003, the Canadian government committed to developing legislation that would facilitate greater access to affordable medicines for developing countries. Over the course of eight months, the legislation, now known as Canada's Access to Medicines Regime (CAMR), went through a controversial policy development process and the newspaper media was one of the major venues in which the policy debates took place. The purpose of this study was to examine how the media framed CAMR to determine how policy goals were conceptualized, which stakeholder interests controlled the public debate and how these variables related to the public policy process. We conducted a qualitative content analysis of newspaper coverage of the CAMR policy and implementation process from 2003-2008. The primary theoretical framework for this study was framing theory. A total of 90 articles from 11 Canadian newspapers were selected for inclusion in our analysis. A team of four researchers coded the articles for themes relating to access to medicines and which stakeholders' voice figured more prominently on each issue. Stakeholders examined included: the research-based industry, the generic industry, civil society, the Canadian government, and developing country representatives. The most frequently mentioned themes across all documents were the issues of drug affordability, intellectual property, trade agreements and obligations, and development. Issues such as human rights, pharmaceutical innovation, and economic competitiveness got little media representation. Civil society dominated the media contents, followed far behind by the Canadian government, the research-based and generic pharmaceutical industries. Developing country representatives were hardly represented in the media. Media framing obscured the discussion of some of the underlying policy goals in this case and failed to highlight issues which are now significant barriers to the use of the legislation. Using the media to engage the public in more in-depth exploration of the policy issues at stake may contribute to a more informed policy development process. The media can be an effective channel for those stakeholders with a weaker voice in policy deliberations to raise public attention to particular issues; however, the political and institutional context must be taken into account as it may outweigh media framing effects.

Media Literacy Education in the Balkan Countries: The Greece and Turkey Case

ERIC Educational Resources Information Center

Tanriverdi, Belgin

2008-01-01

The mass communication process via (mass) media has a great potential of reaching people all around the world. This may foster cosmopolitanism and democracy, but it also holds the danger of an increasing manipulation because of the fact that media can never be neutral and value-free. While some studies do not see a harmful impact of media, most…

A Deeper Look into the Complex Relationship between Social Media Use and Academic Outcomes and Attitudes

ERIC Educational Resources Information Center

Hassell, Martin D.; Sukalich, Mary F.

2016-01-01

Introduction: The use of social media is prevalent among college students, and it is important to understand how social media use may impact students' attitudes and behaviour. Prior studies have shown negative outcomes of social media use, but researchers have not fully discovered or fully understand the processes and implications of these…

Media Competition Implementation for the Massachusetts Childhood Obesity Research Demonstration Study (MA-CORD): Adoption and Reach

PubMed Central

Criss, Shaniece; Cheung, Lilian; Giles, Catherine; Gortmaker, Steven; Viswanath, Kasisomayajula; Kwass, Jo-Ann; Davison, Kirsten

2016-01-01

The Massachusetts Childhood Obesity Research Demonstration Study (MA-CORD) was a multi-level, multi-sector community intervention with a media competition component to provide an overarching synergy and promote awareness of target behaviors to reduce childhood obesity. Students participating in the media competition were tasked with developing videos, song/rap lyrics, and artwork that reflected the goals. The aim of this study is to document the process used to develop and implement the media competition along with its reach and adoption. An adapted version of Neta and colleagues’ 2015 framework on dissemination and implementation was used to summarize the process by which the media competition was developed and implemented. Adoption was defined by whether eligible schools or afterschool programs decided to implement the media competition. Reach was defined by student participation rates within schools/programs and the number of votes cast for the finalists on the coalition website and students’ paper ballots. A total of 595 students participated in the media competition from 18 school and afterschool programs in two communities. Adoption of the media competitions ranged from 22% to 100% in programs and reach ranged from 3% to 33% of the student population. The documentation of the implementation should contribute to the replication of the media competition. PMID:27058549

Combining natural language processing and network analysis to examine how advocacy organizations stimulate conversation on social media.

PubMed

Bail, Christopher Andrew

2016-10-18

Social media sites are rapidly becoming one of the most important forums for public deliberation about advocacy issues. However, social scientists have not explained why some advocacy organizations produce social media messages that inspire far-ranging conversation among social media users, whereas the vast majority of them receive little or no attention. I argue that advocacy organizations are more likely to inspire comments from new social media audiences if they create "cultural bridges," or produce messages that combine conversational themes within an advocacy field that are seldom discussed together. I use natural language processing, network analysis, and a social media application to analyze how cultural bridges shaped public discourse about autism spectrum disorders on Facebook over the course of 1.5 years, controlling for various characteristics of advocacy organizations, their social media audiences, and the broader social context in which they interact. I show that organizations that create substantial cultural bridges provoke 2.52 times more comments about their messages from new social media users than those that do not, controlling for these factors. This study thus offers a theory of cultural messaging and public deliberation and computational techniques for text analysis and application-based survey research.

The effectiveness of different approaches to media literacy in modifying adolescents' responses to alcohol.

PubMed

Chen, Yi-Chun Yvonnes

2013-01-01

Fearing the negative effect that alcohol advertising might have on adolescents' receptiveness to the consumption of alcohol, health educators have used media literacy as an effective strategy to mitigate the effect of these messages in the media. The present study applied parental mediation to the design and evaluations of a media literacy curriculum that targets alcohol decision-making processes illustrated in the message interpretation process model. The authors conducted a pretest-posttest quasi-experiment of 171 adolescents to examine the effect of a negative evaluative approach and a balanced evaluative approach (a combination of negative and positive evaluative strategies) to media literacy on modifying adolescents' responses to alcohol messages. Results showed that different media literacy approaches had varying degrees of effectiveness on adolescent boys and girls. After receiving a negative media literacy lesson, adolescent boys regarded television characters as less realistic and believed that drinking alcohol had negative consequences. In contrast, adolescent girls benefited more from a balanced evaluative approach as their media skepticism attitude was enhanced. Results suggest that health educators should choose tailored pedagogical approaches that are based on gender to improve decision making regarding alcohol consumption.

The impact of knowledge sharing through social media among academia

NASA Astrophysics Data System (ADS)

Ghazali, Saadiah; Sulaiman, Nor Intan Saniah; Zabidi, Nerda Zura; Omar, Mohd Faizal; Alias, Rose Alinda

2016-10-01

The world of research require researcher, academia and lecturers to share knowledge among them. With the invention of social media, knowledge sharing process has been more effective and easy. Previously, there were numerous researches done to investigate the effect of social media utilization for public used. There were also study that aimed to study social media effects in educatioanal sector but those study were centered around student's perspective. Less consideration is given towards academia's perspective. Therefore, this study is directed to explore other niche area on knowledge sharing environment where it will focused on the effects of social media on knowledge sharing among academia. Initially, literature review analysis was done to discover the potential factors that encourage academia to engage in social media. Ability to facilitate communication, idea generation and group establishment are the most cited reasons. Not only that, this paper will highlight the significance of performing this study. In conclusion, there is no doubt that social media do enhance and upgrading the knowledge sharing process thus assisting academia in their scholarly work.

Adapting Behavioral Interventions for Social Media Delivery

PubMed Central

Waring, Molly E; May, Christine N; Ding, Eric Y; Kunz, Werner H; Hayes, Rashelle; Oleski, Jessica L

2016-01-01

Patients are increasingly using online social networks (ie, social media) to connect with other patients and health care professionals—a trend called peer-to-peer health care. Because online social networks provide a means for health care professionals to communicate with patients, and for patients to communicate with each other, an opportunity exists to use social media as a modality to deliver behavioral interventions. Social media-delivered behavioral interventions have the potential to reduce the expense of behavioral interventions by eliminating visits, as well as increase our access to patients by becoming embedded in their social media feeds. Trials of online social network-delivered behavioral interventions have shown promise, but much is unknown about intervention development and methodology. In this paper, we discuss the process by which investigators can translate behavioral interventions for social media delivery. We present a model that describes the steps and decision points in this process, including the necessary training and reporting requirements. We also discuss issues pertinent to social media-delivered interventions, including cost, scalability, and privacy. Finally, we identify areas of research that are needed to optimize this emerging behavioral intervention modality. PMID:26825969

Adapting Behavioral Interventions for Social Media Delivery.

PubMed

Pagoto, Sherry; Waring, Molly E; May, Christine N; Ding, Eric Y; Kunz, Werner H; Hayes, Rashelle; Oleski, Jessica L

2016-01-29

Patients are increasingly using online social networks (ie, social media) to connect with other patients and health care professionals--a trend called peer-to-peer health care. Because online social networks provide a means for health care professionals to communicate with patients, and for patients to communicate with each other, an opportunity exists to use social media as a modality to deliver behavioral interventions. Social media-delivered behavioral interventions have the potential to reduce the expense of behavioral interventions by eliminating visits, as well as increase our access to patients by becoming embedded in their social media feeds. Trials of online social network-delivered behavioral interventions have shown promise, but much is unknown about intervention development and methodology. In this paper, we discuss the process by which investigators can translate behavioral interventions for social media delivery. We present a model that describes the steps and decision points in this process, including the necessary training and reporting requirements. We also discuss issues pertinent to social media-delivered interventions, including cost, scalability, and privacy. Finally, we identify areas of research that are needed to optimize this emerging behavioral intervention modality.

Focusing light into desired patterns through turbid media by feedback-based wavefront shaping

NASA Astrophysics Data System (ADS)

Wan, Lipeng; Chen, Ziyang; Huang, Huiling; Pu, Jixiong

2016-07-01

We demonstrate that the focusing of light into desired patterns through turbid media can be realized using feedback-based wavefront shaping. Three desired focused patterns—a triangle, a circle, and a rectangle—are used as examples to study this ability. During the process of modulating scattered light, the Pearson's correlation coefficient is introduced as a feedback signal. It is found that the speckle field formed by the turbid media gradually transforms into the desired pattern through a process of modulation of the input beam wave front. The proposed approach has potential applications in biomedical treatment and laser material processing.

Methods for increasing the rate of anammox attachment in a sidestream deammonification MBBR.

PubMed

Klaus, Stephanie; McLee, Patrick; Schuler, Andrew J; Bott, Charles

2016-01-01

Deammonification (partial nitritation-anammox) is a proven process for the treatment of high-nitrogen waste streams, but long startup time is a known drawback of this technology. In a deammonification moving bed biofilm reactor (MBBR), startup time could potentially be decreased by increasing the attachment rate of anammox bacteria (AMX) on virgin plastic media. Previous studies have shown that bacterial adhesion rates can be increased by surface modification or by the development of a preliminary biofilm. This is the first study on increasing AMX attachment rates in a deammonification MBBR using these methods. Experimental media consisted of three different wet-chemical surface treatments, and also media transferred from a full-scale mainstream fully nitrifying integrated fixed-film activated sludge (IFAS) reactor. Following startup of a full-scale deammonification reactor, the experimental media were placed in the full-scale reactor and removed for activity rate measurements and biomass testing after 1 and 2 months. The media transferred from the IFAS process exhibited a rapid increase in AMX activity rates (1.1 g/m(2)/day NH(4)(+) removal and 1.4 g/m(2)/day NO(2)(-) removal) as compared to the control (0.2 g/m(2)/day NH(4)(+) removal and 0.1 g/m(2)/day NO(2)(-) removal) after 1 month. Two out of three of the surface modifications resulted in significantly higher AMX activity than the control at 1 and 2 months. No nitrite oxidizing bacteria activity was detected in either the surface modified media or IFAS media batch tests. The results indicate that startup time of a deammonification MBBR could potentially be decreased through surface modification of the plastic media or through the transfer of media from a mature IFAS process.

VASP-4096: a very high performance programmable device for digital media processing applications

NASA Astrophysics Data System (ADS)

Krikelis, Argy

2001-03-01

Over the past few years, technology drivers for microprocessors have changed significantly. Media data delivery and processing--such as telecommunications, networking, video processing, speech recognition and 3D graphics--is increasing in importance and will soon dominate the processing cycles consumed in computer-based systems. This paper presents the architecture of the VASP-4096 processor. VASP-4096 provides high media performance with low energy consumption by integrating associative SIMD parallel processing with embedded microprocessor technology. The major innovations in the VASP-4096 is the integration of thousands of processing units in a single chip that are capable of support software programmable high-performance mathematical functions as well as abstract data processing. In addition to 4096 processing units, VASP-4096 integrates on a single chip a RISC controller that is an implementation of the SPARC architecture, 128 Kbytes of Data Memory, and I/O interfaces. The SIMD processing in VASP-4096 implements the ASProCore architecture, which is a proprietary implementation of SIMD processing, operates at 266 MHz with program instructions issued by the RISC controller. The device also integrates a 64-bit synchronous main memory interface operating at 133 MHz (double-data rate), and a 64- bit 66 MHz PCI interface. VASP-4096, compared with other processors architectures that support media processing, offers true performance scalability, support for deterministic and non-deterministic data processing on a single device, and software programmability that can be re- used in future chip generations.

School Library Media Specialists: Essentially Administrators.

ERIC Educational Resources Information Center

Alewine, Martha

2003-01-01

Considers how school library media specialist administrative responsibilities can carry over to a job as state consultant for school library media services. Discusses characteristics of effective administrators; collaboration; the appreciative inquiry process for systemic change; and duties and projects of the state program that strengthen media…

Intermediality: Bridge to Critical Media Literacy.

ERIC Educational Resources Information Center

Pailliotet, Ann Watts; Semali, Ladislaus; Rodenberg, Rita K.; Giles, Jackie K.; Macaul, Sherry L.

2000-01-01

Defines "intermediality" as the ability to critically read and write with and across varied symbol systems. Relates it to critical media literacy. Offers rationales for teaching critical media literacy in general, and intermedial instruction in particular. Identifies seven guiding intermedial elements: theory, texts, processes, contexts,…

EVALUATION OF BIOAEROSOL EXPOSURES DURING CONDITIONING OF BIOFILTER ORGANIC MEDIA BEDS

EPA Science Inventory

Biological media air filters (biofilters) are currently being used for the treatment of inorganic and organic gasses from sewage treatment plants, industrial processes, and remediation systems. The media may be organic material such as comost, wood chips, or synthetic plastic med...

Canada on the Move: an intensive media analysis from inception to reception.

PubMed

Faulkner, Guy; Finlay, Sara-Jane

2006-01-01

Research evaluating mediated physical activity campaigns uses an unsophisticated conceptualization of the media and would benefit from the application of a media studies approach. The purpose of this article is to report on the application of this type of analysis to the Canada on the Move media campaign. Through interviews and document analysis, the press release surrounding Canada on the Move was examined at four levels: inception, production, transmission and reception. Analytic strategies of thematic and textual analysis were conducted. The press release was well received by journalists and editors and was successfully transmitted as inferred from national and local television coverage, although there was no national print pickup. Canada on the Move was perceived by sampled audience members as a useful and interesting strategy to encourage walking. A holistic approach to media analysis reveals the complex and frequently messy process of this mediated communication process. Implications for future media disseminations of Canada on the Move are discussed.

Leveraging Social Computing for Personalized Crisis Communication using Social Media.

PubMed

Leykin, Dmitry; Aharonson-Daniel, Limor; Lahad, Mooli

2016-03-24

The extensive use of social media in modern life redefines social interaction and communication. Communication plays an important role in mitigating, or exacerbating, the psychological and behavioral responses to critical incidents and disasters. As recent disasters demonstrated, people tend to converge to social media during and following emergencies. Authorities can then use this media and other computational methods to gain insights from the public, mainly to enhance situational awareness, but also to improve their communication with the public and public adherence to instructions. The current review presents a conceptual framework for studying psychological aspects of crisis and risk communication using the social media through social computing. Advanced analytical tools can be integrated in the processes and objectives of crisis communication. The availability of the computational techniques can improve communication with the public by a process of Hyper-Targeted Crisis Communication. The review suggests that using advanced computational tools for target-audience profiling and linguistic matching in social media, can facilitate more sensitive and personalized emergency communication.

Social Media and eBusiness: Cultural Impacts on the Influence Process in Consumer Communities

NASA Astrophysics Data System (ADS)

Chen, Yong; Chen, Hong; Xu, Li

2016-08-01

Social media has been used as an important tool by firms to influence consumers’ attitude and behavior. Influence occurs in consumer communities in social media because community members have the control of discovering, producing, sharing, and distributing information and because the spread out of their experiences and opinions in the format of electronic word-of-mouth forms emerging conformance. Prior research has explored how the influence occurring in online social media communities impacts consumers’ attitude and behavior (e.g., product attitude and purchase decision, effectual thinking and behavior, brand trust and brand loyalty). But because social media has the ability of global reach, cross-border factors should not be neglected in studying the influence process. As such, this paper adopts national cultural dimensions identified by Hofstede (1984), individualism/collectivism and power distance particularly, the index of cultural distance, and the social influence theory to explore how culture impacts the influence occurring in consumer communities in social media.

Der Einsatz der sozialen Medien im Place Branding. Das Beispiel Allgäu

NASA Astrophysics Data System (ADS)

Kräußlich, Bernhard; Schürholz, Peter

2017-12-01

This article focuses on the opportunities and risks of using social media in place branding. Where local authorities provide their content in the context of a place branding via social media, the users gain attributes of a prosumer, most important of which is the high potential for participating in the actual branding process. This active participation causes a variety of changes compared to a branding process without social media. Thus, a qualitative, a quantitative, as well as a temporal and spatial increase of contact with the brand can be determined, though, by virtue of the anonymity provided by the Internet, it is quite possible that this all takes place covertly. A permanent monitoring of the branding process on the part of the operators has become necessary in order to react quickly to changes. The Allgäu model offers a possible procedure for reacting to the new requirements in social media-sampled place branding.

Practical Guide for the Selection of Audio Visual Media. General Criteria System and Evaluation Procedure for Educational Media Decisions.

ERIC Educational Resources Information Center

Klepzig, H. J.; Weiss, M.

Designed to aid in making concrete decisions on the acquisition and use of media, the criteria system and evaluation procedure described is a multiphase, objective-based decision making process. This report includes guidelines for setting up goal systems and developing criteria for the evaluation of media based on a goal system; an outline of…

Factors and Processes That Influence E-Professionalism among Pre-Licensure Baccalaureate Nursing Students When Utilizing Social Media

ERIC Educational Resources Information Center

Skrabal, Julie

2017-01-01

There is limited research related to nursing students' social media use. Because of this, there was a need to further explore how they were using social media and their ability to maintain e-professionalism. This study discovered that pre-licensure baccalaureate nursing students are actively using multiple social media accounts on a daily basis.…

Perchlorate Destruction and Potable Water Production Using Membrane Biofilm Reduction and Membrane Filtration

DTIC Science & Technology

2013-11-18

the experimental filter media Next-SandTM was used, thus turbidity results may not be translatable to conventional filtration media. The media...performance objective was not met. Further optimization of the media filtration process would result in meeting the objective. Dissolved Organic Carbon...FINAL REPORT Perchlorate Destruction and Potable Water Production Using Membrane Biofilm Reduction and Membrane Filtration ESTCP Project ER

Advanced high-temperature thermal energy storage media for industrial applications

NASA Astrophysics Data System (ADS)

Clear, T. D.; Weibel, R. T.

An advanced thermal energy storage (TES) media concept based on use of carbonate salt/ceramic composite materials is being developed for industrial process and reject heat applications. This paper describes the composite latent/sensible media concept and its potential advantages over state-of-the-art latent heat systems. Media stability requirements, on-going materials development efforts and planned TES performance evaluation tests are discussed.

Advanced high-temperature thermal energy storage media for industrial applications

NASA Astrophysics Data System (ADS)

Claar, T. D.; Waibel, R. T.

1982-02-01

An advanced thermal energy storage media concept based on use of carbonate salt/ceramic composite materials is being developed for industrial process and reject heat applications. The composite latent/sensible media concept and its potential advantages over state of the art latent heat systems is described. Media stability requirements, on-going materials development efforts, and planned thermal energy storage (TES) performance evaluation tests are discussed.

Use of social media in health promotion: purposes, key performance indicators, and evaluation metrics.

PubMed

Neiger, Brad L; Thackeray, Rosemary; Van Wagenen, Sarah A; Hanson, Carl L; West, Joshua H; Barnes, Michael D; Fagen, Michael C

2012-03-01

Despite the expanding use of social media, little has been published about its appropriate role in health promotion, and even less has been written about evaluation. The purpose of this article is threefold: (a) outline purposes for social media in health promotion, (b) identify potential key performance indicators associated with these purposes, and (c) propose evaluation metrics for social media related to the key performance indicators. Process evaluation is presented in this article as an overarching evaluation strategy for social media.

Remediation of nitrate-contaminated groundwater by PRB-Electrokinetic integrated process.

PubMed

Ghaeminia, Mahdyar; Mokhtarani, Nader

2018-05-30

Activated carbon is used as a reactive media in Permeable Reactive Barrier (PRB) for the removal of inorganic contaminants such as nitrate from groundwater. Since removal rate by this media decreases by time and due to the high costs of excavation and replacement of new media, the usage of activated carbon as an adsorbent in PRB is limited. The present study aimed to solve this defect by integrating electrokinetic process and PRB, using in-situ regeneration of activated carbon. This research was carried out on a laboratory scale using synthetically contaminated water and modified activated carbon as a reactive media in PRB. The effects of pH, nitrate concentration, carbon to sand ratio, and also electric gradient on the performance of the process were evaluated, and optimal conditions were determined, to increase the system longevity. According to the results, by applying an electric gradient of 1.25 V cm -1 to the PRB alone process in optimum operating condition (135 mg L -1 initial nitrate concentration, flow rate of 2.3 L min -1 , pH = 6.8, and carbon to sand ratios of 1:1) the adsorbent capacity increased by 90%. Under these conditions, the integrated process could keep nitrate concentration in the effluent below the standard limit for about 111 h, while the PRB alone process could do the same job for about 59 h. Also, SEM analysis showed that by applying electrokinetic process, activated carbon was regenerated. Integration of electrokinetic process and PRB was also caused nitrate to transfer from activated carbon media into the soil layer above the system. This nitrate-rich soil has the potential for reuse in agricultural activities. Copyright © 2018 Elsevier Ltd. All rights reserved.

Student Inquiry in the Research Process, Part 4: Inquiry Research Investigation.

ERIC Educational Resources Information Center

Preddy, Leslie B.

2003-01-01

Explains a hands-on, classroom teacher/library media specialist collaborative model for implementing the inquiry approach to the research process into the classroom and school library media center. Topics include the investigation phase; source notes; primary sources; interviews; community resources; storyboards; and peer conferences. (LRW)

Pop Culture Pedagogies: Process and Praxis

ERIC Educational Resources Information Center

Maudlin, Julie Garlen; Sandlin, Jennifer A.

2015-01-01

As Miller (1999) explained, "it is increasingly important for educators to take seriously the processes by which media texts are produced and disseminated, and to understand the ways in which media images and constructions pervade all our lives" (p. 234). Taking popular culture seriously means making a purposeful commitment to bring…

43 CFR 2.14 - When can I get expedited processing?

Code of Federal Regulations, 2011 CFR

2011-10-01

... disseminating information will be a representative of the news media. The requested information must be the type... ordinarily refers to a breaking news story of general public interest. Therefore, information of historical... a news media deadline unrelated to breaking news. (b) A request for expedited processing should be...

Visual Literacy/Process Writing.

ERIC Educational Resources Information Center

Karolides, Nicholas J., Ed.

1984-01-01

The articles in this journal issue provide a rationale and methods for enhancing students' critical awareness of visual media and for a process approach to composition instruction. The titles of the articles and their authors are as follows: (1) "Reel English: Film Study in the High Schools" (James Griswold); (2) "Introducing History Media"…

The Integration of Nonprint Media. SPEC Kit 33.

ERIC Educational Resources Information Center

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

This kit on the integration of nonprint media into Association of Research Libraries (ARL) institutions contains a concise summary of a 1977 phone survey with ARL members, eight descriptions of programs and services, and five acquisition and processing policies. To collect data on practices regarding the acquisition, processing, and use of…

DESIGN MANUAL - REMOVAL OF ARSENIC FROM DRINKING WATER SUPPLIES BY ADSORPTIVE MEDIA

EPA Science Inventory

This design manual is an in-depth presentation of the steps required to design and operate a water treatment plant for removal of excess arsenic from drinking water using the adsorptive media process. The treatment process is very reliable, simple and cost-effective. The adsorpt...

Investigation of excited-state relaxation processes of organic dyes by time-resolved spectroscopy

NASA Astrophysics Data System (ADS)

Przhonska, O.; Slominsky, Yu.; Kachkovsky, A.; Stahl, U.; Senoner, M.; Dähne, S.

1996-04-01

The results of the measurements of the fluorescence decay kinetics of the new series of polymethine dyes in liquid and solid polymeric media are reported. The effects of polymeric media on absorption-relaxation-emission processes are studied at wide excitation, emission and temperature regions.

Pedagogy, Process Drama, and Visual Anthropology.

ERIC Educational Resources Information Center

Jensen, Amy Petersen; Ashworth, Julia

2003-01-01

Notes that media shapes the way young people contextualize their world. Suggests that process drama could be a pedagogical forum where theater practitioners and young people could use dramatic tools to explore the form and content of the omnipresent media in its historical, social, political, and personal contexts. Provides examples of what this…

Recurrent Otitis Media and Attachment Security: A Path Model.

ERIC Educational Resources Information Center

McCallum, Michelle S.; McKim, Margaret K.

1999-01-01

Used regular telephone interviews over six months to examine processes through which recurrent episodes of otitis media influence children's attachment security. Found that recurrent otitis media negatively affected attachment security by increasing mothers' perceptions of their children as behaving more negatively. Parenting stress was not…

The Adverse Drug Reactions from Patient Reports in Social Media Project: Five Major Challenges to Overcome to Operationalize Analysis and Efficiently Support Pharmacovigilance Process

PubMed Central

Dahamna, Badisse; Guillemin-Lanne, Sylvie; Darmoni, Stefan J; Faviez, Carole; Huot, Charles; Katsahian, Sandrine; Leroux, Vincent; Pereira, Suzanne; Richard, Christophe; Schück, Stéphane; Souvignet, Julien; Lillo-Le Louët, Agnès; Texier, Nathalie

2017-01-01

Background Adverse drug reactions (ADRs) are an important cause of morbidity and mortality. Classical Pharmacovigilance process is limited by underreporting which justifies the current interest in new knowledge sources such as social media. The Adverse Drug Reactions from Patient Reports in Social Media (ADR-PRISM) project aims to extract ADRs reported by patients in these media. We identified 5 major challenges to overcome to operationalize the analysis of patient posts: (1) variable quality of information on social media, (2) guarantee of data privacy, (3) response to pharmacovigilance expert expectations, (4) identification of relevant information within Web pages, and (5) robust and evolutive architecture. Objective This article aims to describe the current state of advancement of the ADR-PRISM project by focusing on the solutions we have chosen to address these 5 major challenges. Methods In this article, we propose methods and describe the advancement of this project on several aspects: (1) a quality driven approach for selecting relevant social media for the extraction of knowledge on potential ADRs, (2) an assessment of ethical issues and French regulation for the analysis of data on social media, (3) an analysis of pharmacovigilance expert requirements when reviewing patient posts on the Internet, (4) an extraction method based on natural language processing, pattern based matching, and selection of relevant medical concepts in reference terminologies, and (5) specifications of a component-based architecture for the monitoring system. Results Considering the 5 major challenges, we (1) selected a set of 21 validated criteria for selecting social media to support the extraction of potential ADRs, (2) proposed solutions to guarantee data privacy of patients posting on Internet, (3) took into account pharmacovigilance expert requirements with use case diagrams and scenarios, (4) built domain-specific knowledge resources embeding a lexicon, morphological rules, context rules, semantic rules, syntactic rules, and post-analysis processing, and (5) proposed a component-based architecture that allows storage of big data and accessibility to third-party applications through Web services. Conclusions We demonstrated the feasibility of implementing a component-based architecture that allows collection of patient posts on the Internet, near real-time processing of those posts including annotation, and storage in big data structures. In the next steps, we will evaluate the posts identified by the system in social media to clarify the interest and relevance of such approach to improve conventional pharmacovigilance processes based on spontaneous reporting. PMID:28935617

The role of the media in the science-policy nexus. Some critical reflections based on an analysis of the Belgian drug policy debate (1996-2003).

PubMed

Tieberghien, Julie

2014-03-01

Drug policy is one of the most polarised subjects of public debate and media coverage, which frequently tend to be dramatic and event-centred. Although the role of the media in directing the drug discourse is widely acknowledged, limited research has been conducted in examining the particular role of the media in the science-policy nexus. We sought to determine how the (mis)representation of scientific knowledge in the media may, or may not, have an impact on the contribution of scientific knowledge to the drug-policy making process. Using a case study of the Belgian drug-policy debates between 1996 and 2003, we conducted a discourse analysis of specially selected 1067 newspaper articles and 164 policy documents. Our analysis focused on: textual elements that feature intra-discourse differences, how players and scientific knowledge are represented in the text, the arguments used and claims made, and the various types of research utilisation. Media discourse strongly influenced the public's and policy makers' understanding as well as the content of the Belgian drug policy debate between 1996 and 2003. As a major source of scientific knowledge, media coverage supported the 'enlightenment' role of scientific knowledge in the policy-making process by broadening and even determining frames of reference. However, as the presentation of scientific knowledge in the media was often inaccurate or distorted due to the lack of contextual information or statistical misinformation, the media may also support the selective utilisation of scientific knowledge. Many challenges as well as opportunities lie ahead for researchers who want to influence the policy-making process since most research fails to go beyond academic publications. Although media is a valuable linking mechanism between science and policy, by no means does it provide scientists with a guarantee of a more 'evidence-based' drug policy. Copyright © 2013 Elsevier B.V. All rights reserved.

A qualitative study of the coverage of influenza vaccination on Dutch news sites and social media websites

PubMed Central

2013-01-01

Background Information about influenza and the effectiveness of vaccination against influenza is largely available on the Internet, and may influence individual decision making about participation in future influenza vaccination rounds. E-health information has often been found to be inaccurate, or even to contradict Health Authority recommendations, especially when it concerns controversial topics. Methods By means of an online media monitoring programme, Dutch news sites and social media websites were scanned for the Dutch counterparts of the terms influenza, vaccination, vaccine and epidemic during February, March and April 2012. Data were processed with QSR NVivo 8.0 and analysed using a general inductive approach. Results Three overarching themes were found in both media sources: (1) the (upcoming) influenza epidemic, (2) general information regarding the virus, its prevention and treatment, and (3) uncertainty and mistrust regarding influenza vaccination. Social media tended to report earlier on developments such as the occurrence of an influenza epidemic. The greatest difference was that in social media, influenza was not considered to be a serious disease, and more opposition to the flu shot was expressed in social media, as compared to news media. Conclusions News media and social media discussed the same topics regarding influenza, but differed in message tone. Whereas news media reports tended to be more objective and non-judgmental, social media more critically evaluated the harmfulness of influenza and the necessity of the flu shot. Media may influence decision making and behaviours of Internet users and may thereby influence the success of vaccination campaigns and recommendations made by health authorities. Social media may be more of a problem in this sense, since it is neither controlled nor censored. Future research should investigate the actual impact of Internet media on the influenza decision making process of its users. PMID:23738769

Process for preparing a stabilized coal-water slurry

DOEpatents

Givens, E.N.; Kang, D.

1987-06-23

A process is described for preparing a stabilized coal particle suspension which includes the steps of providing an aqueous media substantially free of coal oxidizing constituents, reducing, in a nonoxidizing atmosphere, the particle size of the coal to be suspended to a size sufficiently small to permit suspension thereof in the aqueous media and admixing the coal of reduced particle size with the aqueous media to release into the aqueous media coal stabilizing constituents indigenous to and carried by the reduced coal particles in order to form a stabilized coal particle suspension. The coal stabilizing constituents are effective in a nonoxidizing atmosphere to maintain the coal particle suspension at essentially a neutral or alkaline pH. The coal is ground in a nonoxidizing atmosphere such as an inert gaseous atmosphere to reduce the coal to a sufficient particle size and is admixed with an aqueous media that has been purged of oxygen and acid-forming gases. 2 figs.

Process for preparing a stabilized coal-water slurry

DOEpatents

Givens, Edwin N.; Kang, Doohee

1987-01-01

A process for preparing a stabilized coal particle suspension which includes the steps of providing an aqueous media substantially free of coal oxidizing constituents, reducing, in a nonoxidizing atmosphere, the particle size of the coal to be suspended to a size sufficiently small to permit suspension thereof in the aqueous media and admixing the coal of reduced particle size with the aqueous media to release into the aqueous media coal stabilizing constituents indigenous to and carried by the reduced coal particles in order to form a stabilized coal particle suspension. The coal stabilizing constituents are effective in a nonoxidizing atmosphere to maintain the coal particle suspension at essentially a neutral or alkaline pH. The coal is ground in a nonoxidizing atmosphere such as an inert gaseous atmosphere to reduce the coal to a sufficient particle size and is admixed with an aqueous media that has been purged of oxygen and acid-forming gases.

Imbedded-Fracture Formulation of THMC Processes in Fractured Media

NASA Astrophysics Data System (ADS)

Yeh, G. T.; Tsai, C. H.; Sung, R.

2016-12-01

Fractured media consist of porous materials and fracture networks. There exist four approaches to mathematically formulating THMC (Thermal-Hydrology-Mechanics-Chemistry) processes models in the system: (1) Equivalent Porous Media, (2) Dual Porosity or Dual Continuum, (3) Heterogeneous Media, and (4) Discrete Fracture Network. The first approach cannot explicitly explore the interactions between porous materials and fracture networks. The second approach introduces too many extra parameters (namely, exchange coefficients) between two media. The third approach may make the problems too stiff because the order of material heterogeneity may be too much. The fourth approach ignore the interaction between porous materials and fracture networks. This talk presents an alternative approach in which fracture networks are modeled with a lower dimension than the surrounding porous materials. Theoretical derivation of mathematical formulations will be given. An example will be illustrated to show the feasibility of this approach.

Production of aligned microfibers and nanofibers and derived functional monoliths

DOEpatents

Hu, Michael Z [Knoxville, TN; DePaoli, David W [Knoxville, TN; Kuritz, Tanya [Kingston, TN; Omatete, Ogbemi [New Port Richey, FL

2007-08-14

The present invention comprises a method for producing microfibers and nanofibers and further fabricating derived solid monolithic materials having aligned uniform micro- or nanofibrils. A method for producing fibers ranging in diameter from micrometer-sized to nanometer-sized comprises the steps of producing an electric field and preparing a solid precipitative reaction media wherein the media comprises at least one chemical reactive precursor and a solvent having low electrical conductivity and wherein a solid precipitation reaction process for nucleation and growth of a solid phase occurs within the media. Then, subjecting the media to the electric field to induce in-situ growth of microfibers or nanofibers during the reaction process within the media causing precipitative growth of solid phase particles wherein the reaction conditions and reaction kinetics control the size, morphology and composition of the fibers. The fibers can then be wet pressed while under electric field into a solid monolith slab, dried and consolidated.

Local media monitoring in process evaluation. Experiences from the Stockholm Diabetes Prevention Programme.

PubMed

Andersson, Camilla Maria; Bjärås, Gunilla; Tillgren, Per; Ostenson, Claes-Göran

2007-01-01

We present a rationale and approach for longitudinal analyses of media coverage and content, and illustrate how media monitoring can be used in process evaluations. Within a community-based diabetes prevention project, the Stockholm Diabetes Prevention Program, we analyzed the frequency, prominence, and framing of physical activity in local newspapers of three intervention and two control municipalities. In total, 2,128 stories and advertisements related to physical activity were identified between the years 1997 and 2002. Although stories about physical activity were relatively few (n = 224), they were prominently located in all five local newspapers. Physical activity was framed rather similarly in the municipalities. Health aspects, however, were expressed to a greater extent in stories in two of the intervention municipalities. A limited portion (14%) of the articles could be linked directly to the program. It is not possible to assess to what extent the program has had a disseminating effect on the newspapers' health-related content in general, due to weaknesses of the process tracking system and limitations of the study design. Implications for the design is that an evaluative framework should be preplanned and include data collection about media relationships, media's interest in public health, media coverage prior to the program and coverage in other media for comparisons of general trends in the reporting. The material and the current database, however, provide a good basis for quantitative content analysis and qualitative discourse analysis to yield information on the type, frequency, and content of health reporting in local newspapers.

17 CFR 1.31 - Books and records; keeping and inspection.

Code of Federal Regulations, 2013 CFR

2013-04-01

..., easily readable projection or production of micrographic media or electronic storage media images; (ii... keep such records, any easily readable hard-copy image that representatives of the Commission or... such records, copies of such records on such compatible data processing media as defined in § 15.00(d...

17 CFR 1.31 - Books and records; keeping and inspection.

Code of Federal Regulations, 2014 CFR

2014-04-01

..., easily readable projection or production of micrographic media or electronic storage media images; (ii... keep such records, any easily readable hard-copy image that representatives of the Commission or... such records, copies of such records on such compatible data processing media as defined in § 15.00(d...

Curricula for Media Literacy Education According to International Experts

ERIC Educational Resources Information Center

Fedorov, Alexander; Levitskaya, Anastasia; Camarero, Emma

2016-01-01

The article analyzes the results of the international experts' survey regarding the curriculum of media literacy education, which was administrated by the authors in September-October 2015. The expert panel includes specialists actively involved in the real process of media literacy education in schools, universities and other educational…

Regenerating an Arsenic Removal Iron-Based Adsorptive Media System, Part 1: The Regeneration Process

EPA Science Inventory

Adsorptive media technology is a frequently used method of removing arsenic by small water systems because of its simplicity and efficiency. Current practice is to replace the media when it no longer reduces arsenic below the USEPA drinking water maximum contaminant level (MCL) ...

The Role of Play in the Accultural Process.

ERIC Educational Resources Information Center

Cooper, Renatta M.

Play, possibly the dominant socializing agent for children's social competence and identity development, is heavily influenced by media-defined images. It is important for media images of minority cultures to be filtered by parents' reactions and comments in order to counter prevalent negative images. Children's interaction with the media is…

Introduction to Media.

ERIC Educational Resources Information Center

Riler, Robert

Designed for senior high school students, this one semester course focuses on four aspects of modern media: television, film, radio, and advertising. Each topic is worked into a weekly lesson plan format that stresses the active involvement of students in the learning process. The course outline contains lists of objectives and media materials…

PREDICTION OF INTERFACIAL AREAS DURING IMBIBITION IN SIMPLE POROUS MEDIA. (R827116)

EPA Science Inventory

The interfacial area between wetting (W-) and non-wetting (NW-) phases is one of the crucial parameters in several flow and transport processes in porous media. This paper gives predictions of such areas during imbibition (displacement of NW-phase by W) in simple porous media....

Media Exposure, Interpersonal Communication and the Electoral Decision Process.

ERIC Educational Resources Information Center

Kimsey, William D.; Hantz, Alan

The relationships among mass media, interpersonal communication, and voting behavior were explored in a two-stage panel study of 141 respondents during a 1974 Illinois congressional election. Analyses of perceived exposures to mass media and to interpersonal communication were interpreted as supporting Rogers and Shoemakers' (1971)…

The Effects of Media Violence on Attitudes, Emotions, and Cognitions.

ERIC Educational Resources Information Center

Rule, Brendan Gail; Ferguson, Tamara J.

1986-01-01

Identifies mediating factors between the viewing of violent media and aggressive behavior. Discusses the role of cognitive and emotional arousal processes, and the interplay among these factors and attitudes toward aggression. Describes the effects of media exposure on arousal, emotional desensitization, and the excitement of the observer's…

Combining natural language processing and network analysis to examine how advocacy organizations stimulate conversation on social media

PubMed Central

Bail, Christopher Andrew

2016-01-01

Social media sites are rapidly becoming one of the most important forums for public deliberation about advocacy issues. However, social scientists have not explained why some advocacy organizations produce social media messages that inspire far-ranging conversation among social media users, whereas the vast majority of them receive little or no attention. I argue that advocacy organizations are more likely to inspire comments from new social media audiences if they create “cultural bridges,” or produce messages that combine conversational themes within an advocacy field that are seldom discussed together. I use natural language processing, network analysis, and a social media application to analyze how cultural bridges shaped public discourse about autism spectrum disorders on Facebook over the course of 1.5 years, controlling for various characteristics of advocacy organizations, their social media audiences, and the broader social context in which they interact. I show that organizations that create substantial cultural bridges provoke 2.52 times more comments about their messages from new social media users than those that do not, controlling for these factors. This study thus offers a theory of cultural messaging and public deliberation and computational techniques for text analysis and application-based survey research. PMID:27694580

Factors influencing public risk-benefit considerations of nanotechnology: Assessing the effects of mass media, interpersonal communication, and elaborative processing.

PubMed

Ho, Shirley S; Scheufele, Dietram A; Corley, Elizabeth A

2013-07-01

This study examines the influence of mass media, interpersonal communication, and elaborative processing on public perception of benefits and risks of nanotechnology, based on a large-scale nationally representative telephone survey of U.S. adult citizens. Results indicate that cognitive processes in the form of news elaboration had a significant positive main effect on benefits outweigh risks perception. The influences of attention to science in newspapers, attention to science news on television, and interpersonal communication about science on public perception of benefits outweigh risks were moderated by elaborative processing, after controlling for socio-demographic variables, religious beliefs, trust in scientists, and scientific knowledge. The findings highlight the importance of elaborative processing when it comes to understanding how the mass media differentially influence public benefits outweigh risks perception of emerging technologies. Specifically, high elaborative processing emphasizes higher levels of perceived benefits outweigh risks than low elaborative processing. This study explores explanations for this phenomenon and offers implications for future research and policy.

Media use and brain development during adolescence.

PubMed

Crone, Eveline A; Konijn, Elly A

2018-02-21

The current generation of adolescents grows up in a media-saturated world. However, it is unclear how media influences the maturational trajectories of brain regions involved in social interactions. Here we review the neural development in adolescence and show how neuroscience can provide a deeper understanding of developmental sensitivities related to adolescents' media use. We argue that adolescents are highly sensitive to acceptance and rejection through social media, and that their heightened emotional sensitivity and protracted development of reflective processing and cognitive control may make them specifically reactive to emotion-arousing media. This review illustrates how neuroscience may help understand the mutual influence of media and peers on adolescents' well-being and opinion formation.

[Impacts of computer- and media usage on the personality development of children and young people].

PubMed

Süss, D

2007-02-01

The psychosocial development of children and the youth today is embedded in a media society. Socialization is understood as an interaction between the individual and its environment. Media are used to accomplish developmental tasks and media literacy has become a developmental task in itself. The presence of media in all social subsystems of every day life alters the general socialization processes, like the integration into peergroups or the detaching from the parents. Media can play the role of resources or the role of risk factors for the development. Empirical research shows that children's access to media is more and more enhanced and an increasing amount of time is spent with screen media. Media socialization of the young people takes on the mode of self education, but children are dependent on adults to prevent negative media effects such as Internet addiction. If media usage is part of an environment which is adequat for children's wellbeeing, the psychosocial development will not be affected negatively by the media.

Media Monopoly in Brazil.

ERIC Educational Resources Information Center

Amaral, Roberto; Guimaraes, Cesar

1994-01-01

Documents the process of broadcasting media development in Brazil, the failure of new technologies to produce democratization, and the barriers to democratization erected by monopolization and "metastasis." (SR)

The blogosphere as an excitable social medium: Richter’s and Omori’s Law in media coverage

NASA Astrophysics Data System (ADS)

Klimek, Peter; Bayer, Werner; Thurner, Stefan

2011-10-01

We study the dynamics of public media attention by monitoring the content of online blogs. Social and media events can be traced by the propagation of word frequencies of related keywords. Media events are classified as exogenous-where blogging activity is triggered by an external news item-or endogenous where word frequencies build up within a blogging community without external influences. We show that word occurrences exhibit statistical similarities to earthquakes. Moreover the size distribution of events scales with a similar exponent as found in the Gutenberg-Richter law. The dynamics of media events before and after the main event can be satisfactorily modeled as a type of process which has been used to understand fore-and aftershock rate distributions in earthquakes-the Omori law. We present empirical evidence that for media events of endogenous origin the overall public reception of the event is correlated with the behavior of word frequencies at the beginning of the event, and is to a certain degree predictable. These results imply that the process of opinion formation in a human society might be related to effects known from excitable media.

Apparatus and process for water treatment

DOEpatents

Phifer, Mark A.; Nichols, Ralph L.

2001-01-01

An apparatus is disclosed utilizing permeable treatment media for treatment of contaminated water, along with a method for enhanced passive flow of contaminated water through the treatment media. The apparatus includes a treatment cell including a permeable structure that encloses the treatment media, the treatment cell may be located inside a water collection well, exterior to a water collection well, or placed in situ within the pathway of contaminated groundwater. The passive flow of contaminated water through the treatment media is maintained by a hydraulic connection between a collecting point of greater water pressure head, and a discharge point of lower water pressure head. The apparatus and process for passive flow and groundwater treatment utilizes a permeable treatment media made up of granular metal, bimetallics, granular cast iron, activated carbon, cation exchange resins, and/or additional treatment materials. An enclosing container may have an outer permeable wall for passive flow of water into the container and through the enclosed treatment media to an effluent point. Flow of contaminated water is attained without active pumping of water through the treatment media. Remediation of chlorinated hydrocarbons and other water contaminants to acceptable regulatory concentration levels is accomplished without the costs of pumping, pump maintenance, and constant oversight by personnel.

Project SMARTArt: A Case Study in Elementary School Media Literacy and Arts Education

ERIC Educational Resources Information Center

Jolls, Tessa; Grande, Denise

2005-01-01

With ongoing professional development and with appropriate tools, teachers are able to internalize information-process skills. Once they understand these process skills, they are able to apply them to any media content and to transform their teaching, without the need for a "cookbook" approach, reliant only on textbooks. Instead,…

Fueling a Third Paradigm of Education: The Pedagogical Implications of Digital, Social and Mobile Media

ERIC Educational Resources Information Center

Pavlik, John V.

2015-01-01

Emerging technologies are fueling a third paradigm of education. Digital, networked and mobile media are enabling a disruptive transformation of the teaching and learning process. This paradigm challenges traditional assumptions that have long characterized educational institutions and processes, including basic notions of space, time, content,…

Work Place Oriented Learning With Digital Media--Consequences for Competency Development

ERIC Educational Resources Information Center

Spottl, Georg; Schulte, Sven; Grantz, Torsten

2012-01-01

Due to their increasing availability and prevalence, digital media allow for a relocation of learning to work processes and support work process oriented learning. This can be put into practice with the aid of different medial/technological and didactical settings. Some examples are the application of mobile terminals, interactive platforms, or…

VARIATIONS IN INSTRUCTIONAL MEDIA, PROCESSES, CONTENT AND APTITUDE VARIABLES IN RELATION TO EFFICIENCY OF COGNITIVE GOAL ATTAINMENT, VOLUME 1.

ERIC Educational Resources Information Center

FATTU, N. A.

A SERIES OF STUDIES WAS UNDERTAKEN, DIRECTED TOWARD EXPLORATIONS OF INTERRELATIONSHIPS AMONG MEDIA, PROCESSES (INSTRUCTIONAL PREREQUISITES), CONTENT AND APTITUDE VARIABLES, AND ACHIEVEMENTS. EMPHASIS THROUGHOUT WAS ON (1) THE COGNITIVE DOMAIN AND (2) PROBLEMS INVOLVED IN APPLICATION OF KNOWLEDGE TO A PRACTICAL TEACHING SITUATION. "THE…

Media fill for validation of a good manufacturing practice-compliant cell production process.

PubMed

Serra, Marta; Roseti, Livia; Bassi, Alessandra

2015-01-01

According to the European Regulation EC 1394/2007, the clinical use of Advanced Therapy Medicinal Products, such as Human Bone Marrow Mesenchymal Stem Cells expanded for the regeneration of bone tissue or Chondrocytes for Autologous Implantation, requires the development of a process in compliance with the Good Manufacturing Practices. The Media Fill test, consisting of a simulation of the expansion process by using a microbial growth medium instead of the cells, is considered one of the most effective ways to validate a cell production process. Such simulation, in fact, allows to identify any weakness in production that can lead to microbiological contamination of the final cell product as well as qualifying operators. Here, we report the critical aspects concerning the design of a Media Fill test to be used as a tool for the further validation of the sterility of a cell-based Good Manufacturing Practice-compliant production process.

Efficient production of nanoparticle-loaded orodispersible films by process integration in a stirred media mill.

PubMed

Steiner, Denise; Finke, Jan Henrik; Kwade, Arno

2016-09-25

Orodispersible films possess a great potential as a versatile platform for nanoparticle-loaded oral dosage forms. In this case, poorly water-soluble organic materials were ground in a stirred media mill and embedded into a polymer matrix. The aim of this study was the shortening of this manufacturing process by the integration of several process steps into a stirred media mill without facing disadvantages regarding the film quality. Furthermore, this process integration is time conserving due to the high stress intensities provided in the mill and applicable for high solids contents and high suspension viscosities. Two organic materials, the model compound Anthraquinone and the active pharmaceutical ingredient Naproxen were investigated in this study. Besides the impact of the film processing on the crystallinity of the particles in the orodispersible film, a particle load of up to 50% was investigated with the new developed processing route. Additionally, a disintegration test was developed, combining an appropriate amount of saliva substitute and a clear endpoint determination. In summary, high nanoparticle loads in orodispersible films with good particle size preservation after film redispersion in water as well as a manufacturing of the film casting mass within a few minutes in a stirred media mill was achieved. Copyright © 2016 Elsevier B.V. All rights reserved.

Pore scale investigation of salt precipitation inside drying porous media resolved by 4D X-ray Microscopy Imaging

NASA Astrophysics Data System (ADS)

Norouzi Rad, M.

2016-12-01

Precipitation and deposition of salts in porous media is important in many natural processes as well as industrial and environmental applications since it can modify the structure and transport properties of porous media. In the presence of soluble salt in water during evaporation from porous media, salt is transported by convection induced by capillary liquid flow toward the evaporating surface where it accumulates, whereas diffusion tends to spread the salt and homogenize concentrations in space. Therefore, the competition between the convection and diffusion (characterized by Peclet number) affects the dynamics of salt distribution in porous media. As shown in previous studies (1-3) salt crust thickness and its coverage on the surface are highly influenced by the pore size distribution on the surface and active evaporation spots. In the current study, we focus on the precipitation dynamics and pattern during diffusion-driven evaporation period (the so-called stage-2 of evaporation) when the surface is dried and vaporization plane moves below the surface. Therefore, precipitation occurs inside the porous media during this period. To investigate the details of this process, 4D X-ray Microscopy was utilized. To do so, a packed bed of silica sand was saturated with 4 Molal NaCl solution and X-ray Microscopy was used to image the sample at well-defined time intervals during the evaporation process to provide pore scale information on evaporation and precipitation dynamics. The resulted 3-D pore-scale images were segmented to quantify the evaporative water losses and the dynamics and patterns of salt precipitation inside porous media with particular focus on the characterization of the processes occurring during stage-2 evaporation affecting the precipitation dynamics. [1] Norouzi Rad, M., N. Shokri, A. Keshmiri, P. Withers (2015), Effects of grain and pore size on salt precipitation during evaporation from porous media: A pore-scale investigation, Trans. Porous. Med., 110(2), 281-294. [2] Norouzi Rad, M., N. Shokri (2014), Effects of grain angularity on NaCl precipitation in porous media during evaporation, Water Resour. Res., 50, 9020-9030. [3] Norouzi Rad, M., N. Shokri, M. Sahimi (2013), Pore-Scale Dynamics of Salt Precipitation in Drying Porous Media, Phys. Rev. E, 88, 032404.

Framing access to medicines in developing countries: an analysis of media coverage of Canada's Access to Medicines Regime

PubMed Central

2010-01-01

Background In September 2003, the Canadian government committed to developing legislation that would facilitate greater access to affordable medicines for developing countries. Over the course of eight months, the legislation, now known as Canada's Access to Medicines Regime (CAMR), went through a controversial policy development process and the newspaper media was one of the major venues in which the policy debates took place. The purpose of this study was to examine how the media framed CAMR to determine how policy goals were conceptualized, which stakeholder interests controlled the public debate and how these variables related to the public policy process. Methods We conducted a qualitative content analysis of newspaper coverage of the CAMR policy and implementation process from 2003-2008. The primary theoretical framework for this study was framing theory. A total of 90 articles from 11 Canadian newspapers were selected for inclusion in our analysis. A team of four researchers coded the articles for themes relating to access to medicines and which stakeholders' voice figured more prominently on each issue. Stakeholders examined included: the research-based industry, the generic industry, civil society, the Canadian government, and developing country representatives. Results The most frequently mentioned themes across all documents were the issues of drug affordability, intellectual property, trade agreements and obligations, and development. Issues such as human rights, pharmaceutical innovation, and economic competitiveness got little media representation. Civil society dominated the media contents, followed far behind by the Canadian government, the research-based and generic pharmaceutical industries. Developing country representatives were hardly represented in the media. Conclusions Media framing obscured the discussion of some of the underlying policy goals in this case and failed to highlight issues which are now significant barriers to the use of the legislation. Using the media to engage the public in more in-depth exploration of the policy issues at stake may contribute to a more informed policy development process. The media can be an effective channel for those stakeholders with a weaker voice in policy deliberations to raise public attention to particular issues; however, the political and institutional context must be taken into account as it may outweigh media framing effects. PMID:20044940

Coupled transport, mixing and biogeochemical reactions in fractured media: experimental observations and modelling at the Ploemeur fractured rock observatory

NASA Astrophysics Data System (ADS)

Le Borgne, T.; Bochet, O.; Klepikova, M.; Kang, P. K.; Shakas, A.; Aquilina, L.; Dufresne, A.; Linde, N.; Dentz, M.; Bour, O.

2016-12-01

Transport processes in fractured media and associated reactions are governed by multiscale heterogeneity ranging from fracture wall roughness at small scale to broadly distributed fracture lengths at network scale. This strong disorder induces a variety of emerging phenomena, including flow channeling, anomalous transport and heat transfer, enhanced mixing and reactive hotspot development. These processes are generally difficult to isolate and monitor in the field because of the high degree of complexity and coupling between them. We report in situ experimental observations from the Ploemeur fractured rock observatory (http://hplus.ore.fr/en/ploemeur) that provide new insights on the dynamics of transport and reaction processes in fractured media. These include dipole and push pull tracer tests that allow understanding and modelling anomalous transport processes characterized by heavy-tailed residence time distributions (Kang et al. 2015), thermal push pull tests that show the existence of highly channeled flow with a strong control on fracture matrix exchanges (Klepikova et al. 2016) and time lapse hydrogeophysical monitoring of saline tracer tests that allow quantifying the distribution of transport length scales governing dispersion processes (Shakas et al. 2016). These transport processes are then shown to induce rapid oxygen delivery and mixing at depth leading to massive biofilm development (Bochet et al., in prep.). Hence, this presentation will attempt to link these observations made at different scales to quantify and model the coupling between flow channeling, non-Fickian transport, mixing and chemical reactions in fractured media. References: Bochet et al. Biofilm blooms driven by enhanced mixing in fractured rock, in prep. Klepikova et al. 2016, Heat as a tracer for understanding transport processes in fractured media: theory and field assessment from multi-scale thermal push-pull tracer tests, Water Resour. Res. 52Shakas et al. 2016, Hydrogeophysical characterization of transport processes in fractured rock by combining push-pull and single-hole ground penetrating radar experiments, Water Resour. Res. 52 Kang et al. 2015, Impact of velocity correlation and distribution on transport in fractured media : Field evidence and theoretical model, Water Resour. Res., 51

Timing Is Everything: One Teacher's Exploration of the Best Time to Use Visual Media in a Science Unit

ERIC Educational Resources Information Center

Drury, Debra

2006-01-01

Kids today are growing up with televisions, movies, videos and DVDs, so it's logical to assume that this type of media could be motivating and used to great effect in the classroom. But at what point should film and other visual media be used? Are there times in the inquiry process when showing a film or incorporating other visual media is more…

Social Media, Collaboration and Social Learning--A Case-Study of Foreign Language Learning

ERIC Educational Resources Information Center

Mondahl, Margrethe; Razmerita, Liana

2014-01-01

Social media has created new possibilities for digitally native students to engage, interact and collaborate in learning tasks that foster learning processes and the overall learning experience. Using both qualitative and quantitative data, this article discusses experiences and challenges of using a social media-enhanced collaborative learning…

New Media Literacy: From Classroom to Community.

ERIC Educational Resources Information Center

Carstarphen, Meta G.

Each new media revolution forces adjustments for both the producers of messages and the receivers of those messages. Integral to the communication process is an understanding of what it means to be literate in an eclectic communication environment and of how the new media may enhance or impede literacy. An important premise for this discussion is…

Social Media's Use in Postgraduate Students' Decision-Making Journey: An Exploratory Study

ERIC Educational Resources Information Center

Galan, Mianda; Lawley, Meredith; Clements, Michael

2015-01-01

Universities globally are showing increased interest in the potential of social media as a marketing recruitment tool. This paper explores how and why potential postgraduate business students looking to study internationally use social media in their educational decision-making process. Due to a lack of existing research, this study adopted an…

The Effect of Bad News and CEO Apology of Corporate on User Responses in Social Media

PubMed Central

Cha, Meeyoung; Jeong, Jaeseung

2015-01-01

While social media has become an important platform for social reputation, the emotional responses of users toward bad news have not been investigated thoroughly. We analyzed a total of 20,773 Twitter messages by 15,513 users to assess the influence of bad news and public apology in social media. Based on both computerized, quantitative sentiment analysis and in-depth qualitative analysis, we found that rapid public apology effectively and immediately reduced the level of negative sentiment, where the degree of change in sentiments differed by the type of interactions users engaged in. The majority of users who directly conversed with corporate representatives on the new media were not typical consumers, but experts and practitioners. We extend the existing cognitive model and suggest the audiences’ psychological reaction model to describe the information processing process during and after an organizational crisis and response. We also discuss various measures through which companies can respond to a crisis properly in social media in a fashion that is different from conventional mass media. PMID:25951231

The Effect of Bad News and CEO Apology of Corporate on User Responses in Social Media.

PubMed

Kim, Hoh; Park, Jaram; Cha, Meeyoung; Jeong, Jaeseung

2015-01-01

While social media has become an important platform for social reputation, the emotional responses of users toward bad news have not been investigated thoroughly. We analyzed a total of 20,773 Twitter messages by 15,513 users to assess the influence of bad news and public apology in social media. Based on both computerized, quantitative sentiment analysis and in-depth qualitative analysis, we found that rapid public apology effectively and immediately reduced the level of negative sentiment, where the degree of change in sentiments differed by the type of interactions users engaged in. The majority of users who directly conversed with corporate representatives on the new media were not typical consumers, but experts and practitioners. We extend the existing cognitive model and suggest the audiences' psychological reaction model to describe the information processing process during and after an organizational crisis and response. We also discuss various measures through which companies can respond to a crisis properly in social media in a fashion that is different from conventional mass media.

Imprint lithography template technology for bit patterned media (BPM)

NASA Astrophysics Data System (ADS)

Lille, J.; Patel, K.; Ruiz, R.; Wu, T.-W.; Gao, H.; Wan, Lei; Zeltzer, G.; Dobisz, E.; Albrecht, T. R.

2011-11-01

Bit patterned media (BPM) for magnetic recording has emerged as a promising technology to deliver thermally stable magnetic storage at densities beyond 1Tb/in2. Insertion of BPM into hard disk drives will require the introduction of nanoimprint lithography and other nanofabrication processes for the first time. In this work, we focus on nanoimprint and nanofabrication challenges that are being overcome in order to produce patterned media. Patterned media has created the need for new tools and processes, such as an advanced rotary e-beam lithography tool and block copolymer integration. The integration of block copolymer is through the use of a chemical contrast pattern on the substrate which guides the alignment of di-block copolymers. Most of the work on directed self assembly for patterned media applications has, until recently, concentrated on the formation of circular dot patterns in a hexagonal close packed lattice. However, interactions between the read head and media favor a bit aspect ratio (BAR) greater than one. This design constraint has motivated new approaches for using self-assembly to create suitable high-BAR master patterns and has implications for template fabrication.

Leveraging Social Computing for Personalized Crisis Communication using Social Media

PubMed Central

Leykin, Dmitry; Aharonson-Daniel, Limor; Lahad, Mooli

2016-01-01

Introduction: The extensive use of social media in modern life redefines social interaction and communication. Communication plays an important role in mitigating, or exacerbating, the psychological and behavioral responses to critical incidents and disasters. As recent disasters demonstrated, people tend to converge to social media during and following emergencies. Authorities can then use this media and other computational methods to gain insights from the public, mainly to enhance situational awareness, but also to improve their communication with the public and public adherence to instructions. Methods: The current review presents a conceptual framework for studying psychological aspects of crisis and risk communication using the social media through social computing. Results: Advanced analytical tools can be integrated in the processes and objectives of crisis communication. The availability of the computational techniques can improve communication with the public by a process of Hyper-Targeted Crisis Communication. Discussion: The review suggests that using advanced computational tools for target-audience profiling and linguistic matching in social media, can facilitate more sensitive and personalized emergency communication. PMID:27092290

Robust media processing on programmable power-constrained systems

NASA Astrophysics Data System (ADS)

McVeigh, Jeff

2005-03-01

To achieve consumer-level quality, media systems must process continuous streams of audio and video data while maintaining exacting tolerances on sampling rate, jitter, synchronization, and latency. While it is relatively straightforward to design fixed-function hardware implementations to satisfy worst-case conditions, there is a growing trend to utilize programmable multi-tasking solutions for media applications. The flexibility of these systems enables support for multiple current and future media formats, which can reduce design costs and time-to-market. This paper provides practical engineering solutions to achieve robust media processing on such systems, with specific attention given to power-constrained platforms. The techniques covered in this article utilize the fundamental concepts of algorithm and software optimization, software/hardware partitioning, stream buffering, hierarchical prioritization, and system resource and power management. A novel enhancement to dynamically adjust processor voltage and frequency based on buffer fullness to reduce system power consumption is examined in detail. The application of these techniques is provided in a case study of a portable video player implementation based on a general-purpose processor running a non real-time operating system that achieves robust playback of synchronized H.264 video and MP3 audio from local storage and streaming over 802.11.

Methods, media and systems for managing a distributed application running in a plurality of digital processing devices

DOEpatents

Laadan, Oren; Nieh, Jason; Phung, Dan

2012-10-02

Methods, media and systems for managing a distributed application running in a plurality of digital processing devices are provided. In some embodiments, a method includes running one or more processes associated with the distributed application in virtualized operating system environments on a plurality of digital processing devices, suspending the one or more processes, and saving network state information relating to network connections among the one or more processes. The method further include storing process information relating to the one or more processes, recreating the network connections using the saved network state information, and restarting the one or more processes using the stored process information.

Parenting and Digital Media.

PubMed

Coyne, Sarah M; Radesky, Jenny; Collier, Kevin M; Gentile, Douglas A; Linder, Jennifer Ruh; Nathanson, Amy I; Rasmussen, Eric E; Reich, Stephanie M; Rogers, Jean

2017-11-01

Understanding the family dynamic surrounding media use is crucial to our understanding of media effects, policy development, and the targeting of individuals and families for interventions to benefit child health and development. The Families, Parenting, and Media Workgroup reviewed the relevant research from the past few decades. We find that child characteristics, the parent-child relationship, parental mediation practices, and parents' own use of media all can influence children's media use, their attitudes regarding media, and the effects of media on children. However, gaps remain. First, more research is needed on best practices of parental mediation for both traditional and new media. Ideally, this research will involve large-scale, longitudinal studies that manage children from infancy to adulthood. Second, we need to better understand the relationship between parent media use and child media use and specifically how media may interfere with or strengthen parent-child relationships. Finally, longitudinal research on how developmental processes and individual child characteristics influence the intersection between media and family life is needed. The majority of children's media use takes place within a wider family dynamic. An understanding of this dynamic is crucial to understanding child media use as a whole. Copyright © 2017 by the American Academy of Pediatrics.

Media Fill Test for validation of autologous leukocytes separation and labelling by (99m)Tc-HmPAO.

PubMed

Urbano, Nicoletta; Modoni, Sergio; Schillaci, Orazio

2013-01-01

Manufacturing of sterile products must be carried out in order to minimize risks of microbiological contamination. White blood cells (WBC) labelled with (99m)Tc-exametazime ((99m)Tc-hexamethylpropyleneamine oxime; (99m)Tc-HMPAO) are being successfully applied in the field of infection/inflammation scintigraphy for many years. In our radiopharmacy lab, separation and labelling of autologous leukocytes with (99m)Tc-HMPAO were performed in a laminar flow cabinet not classified and placed in a controlled area, whereas (99m)Tc-HMPAO radiolabelling procedure was carried out in a hot cell with manipulator gloves. This study was conducted to validate this process using a Media Fill simulation test. The study was performed using sterile Tryptic Soy Broth (TSB) in place of active product, reproducing as closely as possible the routine aseptic production process with all the critical steps, as described in the our internal standard operative procedures (SOP). The final vials containing the media of each processed step were then incubated for 14 days and examined for the evidence of microbial growth. No evidence of turbidity was observed in all the steps assayed by the Media Fill. In the separation and labelling of autologous leukocytes with (99m)Tc-HmPAO, Media-Fill test represents a reliable tool to validate the aseptic process. Copyright © 2013 Elsevier Inc. All rights reserved.

Hospital decentralisation in Romania: stakeholders' perspectives in the newsprint media.

PubMed

Popa, Adela Elena

2014-01-01

In the summer of 2010, Romania undertook a process of hospital decentralisation as part of the reform in the healthcare sector. The national newsprint media covered the process thoroughly. This paper is a study of how key stakeholders' views, attitudes, beliefs and attitudes towards decentralisation are represented in print media. 106 articles, published between June and September 2010, retrieved from the online databases of six leading national dailies were analysed. A mixed methodology was used in the data analysis stage. The qualitative data exploration identified five voices belonging to stakeholders involved directly or indirectly in the process: the representatives of central government, the local authorities (district and local councils, municipal mayors), health professionals (managers and physicians in hospitals), the media (journalists, analysts) and finally voices from civil society, professional associations and advocacy groups. These were the main actors negotiating the subjective meanings of the decentralisation process. An imbalance between these key actors were observed in the frequency, content and tone of the messages delivered in media during the four months. Central government and the local authorities were the most active voices, but the respective discourses differed significantly. An analysis of the accounts identified three main themes: the financial problem (hospitals liabilities and future spending), human resource in hospitals (the impact of decentralisation upon it) and the political character of the decentralisation. Copyright © 2013 John Wiley & Sons, Ltd.

Mass media in health promotion: an analysis using an extended information-processing model.

PubMed

Flay, B R; DiTecco, D; Schlegel, R P

1980-01-01

The information-processing model of the attitude and behavior change process was critically examined and extended from six to 12 levels for a better analysis of change due to mass media campaigns. Findings from social psychology and communications research, and from evaluations of mass media health promotion programs, were reviewed to determine how source, message, channel, receiver, and destination variables affect each of the levels of change of major interest (knowledge, beliefs, attitudes, intentions and behavior). Factors found to most likely induce permanent attitude and behavior change (most important in health promotion) were: presentation and repetition over long time periods, via multiple sources, at different times (including "prime" or high-exposure times), by multiple sources, in novel and involving ways, with appeals to multiple motives, development of social support, and provisions of appropriate behavioral skills, alternatives, and reinforcement (preferably in ways that get the active participation of the audience). Suggestions for evaluation of mass media programs that take account of this complexity were advanced.

Heuristic versus Systematic Processing of Specialist versus Generalist Sources in Online Media

ERIC Educational Resources Information Center

Koh, Yoon Jeon; Sundar, S. Shyam

2010-01-01

In exploring why specialist sources (e.g., CNN.com) are more persuasive than generalist sources (e.g., CBS.com), this study examines theoretical mechanisms related to information-processing differences caused by these sources. When we have a chain of sources (Websites and agents) in online media, does specialization of one of them bias the…

Journey on greener pathways: from the use of alternate energy inputs and benign reaction media to sustainable applications of nano-catalysts in synthesis and environmental remediation

EPA Science Inventory

Sustainable synthetic processes developed during the past two decades involving the use of alternate energy inputs and greener reaction media are summarized. These processes include examples of coupling reactions, the synthesis of heterocyclic compounds, and a variety of reactio...

14 million hours of operational experience on phosphate ester fluids as gas turbine main bearing lubricants

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

Dufresne, P.E.

1998-09-01

Phosphate ester fluids have been used as a gas turbine main bearing lubricant for more than 35 years. Acid treatment systems utilizing fullers` earth and activated alumina have been used to remove acids produced during the PE fluid degradation process on an intermittent or continuous basis. Both acid adsorbing medias contribute metal soaps during the acid adsorbing process. Over time, the build-up of metal soaps significantly reduces the capability of the media to adsorb acids. The end result is escalating acid levels and fluid operating problems. The introduction of ion exchange as an acid adsorbing media has eliminated the catalyticmore » fluid degradation process, and offers phosphate ester users` extremely long fluid service life.« less

Effects of antimicrobial treatment on fiberglass-acrylic filters.

PubMed

Cecchini, C; Verdenelli, M C; Orpianesi, C; Dadea, G M; Cresci, A

2004-01-01

The aims of the present study were to: (i) analyse a group of antimicrobial agents and to select the most active against test microbial strains; (ii) test the effect of the antimicrobial treatment on air filters in order to reduce microbial colonization. Different kinds of antimicrobial agents were analysed to assess their compatibility with the production process of air filter media. The minimal inhibitory concentration for each antimicrobial agent was determined against a defined list of microbial strains, and an antimicrobial activity assay of filter prototypes was developed to determine the most active agent among the compatible antimicrobials. Then, the most active was chosen and added directly to the filter during the production process. The microbial colonization of treated and untreated filter media was assessed at different working times for different incubation times by stereomicroscope and scanning electron microscope analysis. Some of the antimicrobial agents analysed were more active against microbial test strains and compatible with the production process of the filter media. Filter sections analysis of treated filter media showed a significantly lower microbial colonization than those untreated, a reduction of species both in density and varieties and of the presence of bacteria and fungal hyphae with reproductive structures. This study demonstrated the ability of antimicrobial treatments to inhibit the growth of micro-organisms in filter media and subsequently to increase indoor air quality (IAQ), highlighting the value of adding antimicrobials to filter media. To make a contribution to solving the problem of microbial contamination of air filters, by demonstrating the efficacy of incorporating antimicrobial agents in the filter media to improve IAQ and health.

Otitis Media: Effect on a Child's Learning.

ERIC Educational Resources Information Center

Gdowski, Becky S.; And Others

1986-01-01

The paper reviews the relationship between otitis media, auditory processing, language, and learning development. Suggestions are provided for identifying and managing students with suspected histories of the condition. (CL)

Framing migration and the process of crimmigration: A systematic analysis of the media representation of unauthorized immigrants in the Netherlands.

PubMed

Brouwer, Jelmer; van der Woude, Maartje; van der Leun, Joanne

2017-01-01

In this article we examine whether the proposal to criminalize illegal stay in the Netherlands was preceded by increased negative media attention for unauthorized immigrants. Using a corpus linguistics approach, we carried out a quantitative discourse analysis of all newspaper articles on unauthorized migrants over a period of 15 years. Our results show that the amount of media coverage actually strongly decreased in the years before the proposal, and this coverage was moreover increasingly less negative. This study thus nuances the somewhat popular belief that unauthorized migrants are increasingly portrayed in negative ways and shows that the framing of migrants as criminals is a more diffuse process in which the media seem to follow rather than fuel politics and policy.

Framing migration and the process of crimmigration: A systematic analysis of the media representation of unauthorized immigrants in the Netherlands

PubMed Central

Brouwer, Jelmer; van der Woude, Maartje; van der Leun, Joanne

2017-01-01

In this article we examine whether the proposal to criminalize illegal stay in the Netherlands was preceded by increased negative media attention for unauthorized immigrants. Using a corpus linguistics approach, we carried out a quantitative discourse analysis of all newspaper articles on unauthorized migrants over a period of 15 years. Our results show that the amount of media coverage actually strongly decreased in the years before the proposal, and this coverage was moreover increasingly less negative. This study thus nuances the somewhat popular belief that unauthorized migrants are increasingly portrayed in negative ways and shows that the framing of migrants as criminals is a more diffuse process in which the media seem to follow rather than fuel politics and policy. PMID:28596711

The Adverse Drug Reactions from Patient Reports in Social Media Project: Five Major Challenges to Overcome to Operationalize Analysis and Efficiently Support Pharmacovigilance Process.

PubMed

Bousquet, Cedric; Dahamna, Badisse; Guillemin-Lanne, Sylvie; Darmoni, Stefan J; Faviez, Carole; Huot, Charles; Katsahian, Sandrine; Leroux, Vincent; Pereira, Suzanne; Richard, Christophe; Schück, Stéphane; Souvignet, Julien; Lillo-Le Louët, Agnès; Texier, Nathalie

2017-09-21

Adverse drug reactions (ADRs) are an important cause of morbidity and mortality. Classical Pharmacovigilance process is limited by underreporting which justifies the current interest in new knowledge sources such as social media. The Adverse Drug Reactions from Patient Reports in Social Media (ADR-PRISM) project aims to extract ADRs reported by patients in these media. We identified 5 major challenges to overcome to operationalize the analysis of patient posts: (1) variable quality of information on social media, (2) guarantee of data privacy, (3) response to pharmacovigilance expert expectations, (4) identification of relevant information within Web pages, and (5) robust and evolutive architecture. This article aims to describe the current state of advancement of the ADR-PRISM project by focusing on the solutions we have chosen to address these 5 major challenges. In this article, we propose methods and describe the advancement of this project on several aspects: (1) a quality driven approach for selecting relevant social media for the extraction of knowledge on potential ADRs, (2) an assessment of ethical issues and French regulation for the analysis of data on social media, (3) an analysis of pharmacovigilance expert requirements when reviewing patient posts on the Internet, (4) an extraction method based on natural language processing, pattern based matching, and selection of relevant medical concepts in reference terminologies, and (5) specifications of a component-based architecture for the monitoring system. Considering the 5 major challenges, we (1) selected a set of 21 validated criteria for selecting social media to support the extraction of potential ADRs, (2) proposed solutions to guarantee data privacy of patients posting on Internet, (3) took into account pharmacovigilance expert requirements with use case diagrams and scenarios, (4) built domain-specific knowledge resources embeding a lexicon, morphological rules, context rules, semantic rules, syntactic rules, and post-analysis processing, and (5) proposed a component-based architecture that allows storage of big data and accessibility to third-party applications through Web services. We demonstrated the feasibility of implementing a component-based architecture that allows collection of patient posts on the Internet, near real-time processing of those posts including annotation, and storage in big data structures. In the next steps, we will evaluate the posts identified by the system in social media to clarify the interest and relevance of such approach to improve conventional pharmacovigilance processes based on spontaneous reporting. ©Cedric Bousquet, Badisse Dahamna, Sylvie Guillemin-Lanne, Stefan J Darmoni, Carole Faviez, Charles Huot, Sandrine Katsahian, Vincent Leroux, Suzanne Pereira, Christophe Richard, Stéphane Schück, Julien Souvignet, Agnès Lillo-Le Louët, Nathalie Texier. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 21.09.2017.

Monitoring cell culture media degradation using surface enhanced Raman scattering (SERS) spectroscopy.

PubMed

Calvet, Amandine; Ryder, Alan G

2014-08-20

The quality of the cell culture media used in biopharmaceutical manufacturing is a crucial factor affecting bioprocess performance and the quality of the final product. Due to their complex composition these media are inherently unstable, and significant compositional variations can occur particularly when in the prepared liquid state. For example photo-degradation of cell culture media can have adverse effects on cell viability and thus process performance. There is therefore, from quality control, quality assurance and process management view points, an urgent demand for the development of rapid and inexpensive tools for the stability monitoring of these complex mixtures. Spectroscopic methods, based on fluorescence or Raman measurements, have now become viable alternatives to more time-consuming and expensive (on a unit analysis cost) chromatographic and/or mass spectrometry based methods for routine analysis of media. Here we demonstrate the application of surface enhanced Raman scattering (SERS) spectroscopy for the simple, fast, analysis of cell culture media degradation. Once stringent reproducibility controls are implemented, chemometric data analysis methods can then be used to rapidly monitor the compositional changes in chemically defined media. SERS shows clearly that even when media are stored at low temperature (2-8°C) and in the dark, significant chemical changes occur, particularly with regard to cysteine/cystine concentration. Copyright © 2014 Elsevier B.V. All rights reserved.

[The clinical classification of acute otitis media with special reference to tympanometry].

PubMed

Subbotina, M V

We have developed a new clinical classification of acute otitis media (AOM) based on the previously proposed classifications of V.T. Palchun with co-workers (1997) and J. Jeger (1970) in which the letter near the stage of the pathological process roughly corresponds to the type of the tympanogram as follows: stage I (acute tubootitis): A, B, C; stage II (acute catarrhal otitis media): A, B, C; stage III (acute purulent otitis media, perforation stage); stage IV (acute purulent otitis media, post-perforation stage); stage V (resolution of otitis media): A - convalescence or recovery, B1 - exudate present in the tympanic cavity; B2 - persisting perforation; C - block of the auditory tube, O - the development of complications. This classification implies the necessity of tympanometry at the stage of diagnostics of AOM although it is not mandatory because the detection of exudate as a result of paracentesis at any of the stages of otitis media will allow to designate the stage of otitis either by letter A, B or C. The application of the new classification described in this article permits to more accurately than before determine the character of the pathological process in the middle ear during the course of acute otitis media which is of special importance in the clinical pediatric practice for the timely and adequate treatment of the children.

Health and media: a partnership.

PubMed

Ling, J C

1985-12-01

There has been growing awareness among professionals engaged in marketing and advertising that modern advertising methods can be applied in support of social goals, including health. This has been accompanied by a recognition among health professionals that health is a social phenomenon dependent upon an adequately informed public. However, the health and media sectors have grown apart in past decades. The former tends to be technical and scientific, while the latter is geared to the broadest common denominator of the public. Health professionals often view the mass media with suspicion, and promotion is mistakenly associated with advertising. This paper draws attention to the need for these 2 sectors to work more closely together. Without the involvement of the media, the health sector will not be able to inform the general public on health issues or help stimulate a process of community involvement. Without the technical input of the health sector, the media cannot fulfill their obligation of serving the interests of the public. The role of the media to raise consciousness, stimulate public discussion, articulate public aspirations, disseminate information, and reflect social norms has become established. However, for health practices to be adopted, media input must be complemented by face-to-face communication and should be part of a multifacted program of health services and action. Cooperation between the media and the health sector should be broadened in the years ahead a process that could significantly enhance health and social development.

Social media and disasters: a functional framework for social media use in disaster planning, response, and research.

PubMed

Houston, J Brian; Hawthorne, Joshua; Perreault, Mildred F; Park, Eun Hae; Goldstein Hode, Marlo; Halliwell, Michael R; Turner McGowen, Sarah E; Davis, Rachel; Vaid, Shivani; McElderry, Jonathan A; Griffith, Stanford A

2015-01-01

A comprehensive review of online, official, and scientific literature was carried out in 2012-13 to develop a framework of disaster social media. This framework can be used to facilitate the creation of disaster social media tools, the formulation of disaster social media implementation processes, and the scientific study of disaster social media effects. Disaster social media users in the framework include communities, government, individuals, organisations, and media outlets. Fifteen distinct disaster social media uses were identified, ranging from preparing and receiving disaster preparedness information and warnings and signalling and detecting disasters prior to an event to (re)connecting community members following a disaster. The framework illustrates that a variety of entities may utilise and produce disaster social media content. Consequently, disaster social media use can be conceptualised as occurring at a number of levels, even within the same disaster. Suggestions are provided on how the proposed framework can inform future disaster social media development and research. © 2014 2014 The Author(s). Disasters © Overseas Development Institute, 2014.

Media multitasking and implicit learning.

PubMed

Edwards, Kathleen S; Shin, Myoungju

2017-07-01

Media multitasking refers to the simultaneous use of different forms of media. Previous research comparing heavy media multitaskers and light media multitaskers suggests that heavy media multitaskers have a broader scope of attention. The present study explored whether these differences in attentional scope would lead to a greater degree of implicit learning for heavy media multitaskers. The study also examined whether media multitasking behaviour is associated with differences in visual working memory, and whether visual working memory differentially affects the ability to process contextual information. In addition to comparing extreme groups (heavy and light media multitaskers) the study included analysis of people who media multitask in moderation (intermediate media multitaskers). Ninety-four participants were divided into groups based on responses to the media use questionnaire, and completed the contextual cueing and n-back tasks. Results indicated that the speed at which implicit learning occurred was slower in heavy media multitaskers relative to both light and intermediate media multitaskers. There was no relationship between working memory performance and media multitasking group, and no relationship between working memory and implicit learning. There was also no evidence for superior performance of intermediate media multitaskers. A deficit in implicit learning observed in heavy media multitaskers is consistent with previous literature, which suggests that heavy media multitaskers perform more poorly than light media multitaskers in attentional tasks due to their wider attentional scope.

Measuring research influence on drug policy: a case example of two epidemiological monitoring systems.

PubMed

Ritter, Alison; Lancaster, Kari

2013-01-01

Assessing the extent to which drug research influences and impacts upon policy decision-making needs to go beyond bibliometric analysis of academic citations. Policy makers do not necessarily access the academic literature, and policy processes are largely iterative and rely on interactions and relationships. Furthermore, media representation of research contributes to public opinion and can influence policy uptake. In this context, assessing research influence involves examining the extent to which a research project is taken up in policy documents, used within policy processes, and disseminated via the media. This three component approach is demonstrated using a case example of two ongoing illicit drug monitoring systems: the Illicit Drug Reporting System (IDRS) and the Ecstasy and related Drugs Reporting System (EDRS). Systematic searches for reference to the IDRS and/or EDRS within policy documents, across multiple policy processes (such as parliamentary inquiries) and in the media, in conjunction with analysis of the types of mentions in these three sources, enables an analysis of policy influence. The context for the research is also described as the foundation for the approach. The application of the three component approach to the case study demonstrates a practical and systematic retrospective approach to measure drug research influence. For example, the ways in which the IDRS and EDRS were mentioned in policy documents demonstrated research utilisation. Policy processes were inclusive of IDRS and EDRS findings, while the media analysis revealed only a small contribution in the context of wider media reporting. Consistent with theories of policy processes, assessing the extent of research influence requires a systematic analysis of policy documents and processes. Development of such analyses and associated methods will better equip researchers to evaluate the impact of research. Copyright © 2012 Elsevier B.V. All rights reserved.

Congregating to Create for Social Change: Urban Youth Media Production and Sense of Community

ERIC Educational Resources Information Center

Charmaraman, Linda

2013-01-01

This case study explored how adolescents were empowered through afterschool media production activities and, in the process, re-imagined themselves as active and engaged citizens within their community. Through analyzing interviews, participant observations, and media artifacts of 14 participants (aged 15-19) over a period of 18 months, three main…

The Rest of the Elephant: Perspectives on the Mass Media.

ERIC Educational Resources Information Center

Stevens, John D.; Porter, William E.

This book presents an analytical introduction to the study of the mass media. Aspects of media that have received little attention--audiences, economics, working processes and ethics--are treated in the four sections of the book. Section one covers symbiosis between the medium and the audience. Section two discusses the way in which business and…

The Principal's Experience through the Process of Implementing Social Media in Schools

ERIC Educational Resources Information Center

Lovecchio, Michael J.

2013-01-01

As school districts struggle to identify the role social media will play both inside and outside of the classroom, educational leaders can no longer ignore the benefits that these tools provide to students, stakeholders and faculty members. The potential challenges facing school leaders working in schools that utilize social media is extensive.…

How to Craft Social Media for Graduate Study

ERIC Educational Resources Information Center

Huwe, Terence K.

2011-01-01

Social media now offer a fresh opportunity to enliven the learning process. But to gain traction, they will have to prove their relevance. Librarians are quite vocal in advocating for the preservation of human interaction around digital media; one might say that it is their charge to be certain that the human factors within digital libraries are…

Issue Management and the Australian Gun Debate.

ERIC Educational Resources Information Center

Reynolds, Christopher

1997-01-01

Examines the rise and fall of media coverage of the issues of gun control and political conflict in Australia after an incident of mass murder in April 1996. Aims to reveal the issue management process that occurred and the hidden agendas that motivated the political and media activity. Demonstrates the media's role in the creation of issue…

The Space for Social Media in Structured Online Learning

ERIC Educational Resources Information Center

Salmon, Gilly; Ross, Bella; Pechenkina, Ekaterina; Chase, Anne-Marie

2015-01-01

In this paper, we explore the benefits of using social media in an online educational setting, with a particular focus on the use of Facebook and Twitter by participants in a Massive Open Online Course (MOOC) developed to enable educators to learn about the Carpe Diem learning design process. We define social media as digital social tools and…

The Impact of Information on AIDS Risk Judgments and Behavioral Change among Young Adults.

ERIC Educational Resources Information Center

Dunwoody, Sharon; Neuwirth, Kurt

Participants in the debate on the media's role in the current AIDS (Acquired Immune Deficiency Syndrome) epidemic implicitly adopt a set of underlying assumptions about media processes and effects: information about AIDS proffered by the media has the capacity to influence estimates of risk, personal levels of concern, and extent of behavioral…

Why Social Media Must Have a Place in Schools

ERIC Educational Resources Information Center

Krutka, Daniel G.; Carpenter, Jeffrey P.

2016-01-01

While most young people regularly consume and produce social media content, many schools focus on what students should not do with these technologies rather than address what students and teachers can do. The authors share ways that some educators leverage social media to enhance the who, when, where, why, how, and what of educational processes.

The Role of Student Publications Depends on Healing Process.

ERIC Educational Resources Information Center

Zibluk, Jack

1999-01-01

Notes two very different reactions to school shootings--Westside Middle School has no memorials and no media coverage of the four classmates and a teacher who were killed, whereas Columbine High School has erected memorials and is subject to ongoing media coverage. Concludes that the student media's role in covering tragic events is unique to each…

A Communication Model for Teaching a Course in Mass Media and Society.

ERIC Educational Resources Information Center

Crumley, Wilma; Stricklin, Michael

Many professors of mass media and society courses have relied on a teaching model implying that students are sponges soaking up information. A more appropriate model invites concern with an active audience, transaction, the interpersonal mass media mix, a general systems approach, and process and change--in other words, utilization of current and…

Professional Online Presence and Learning Networks: Educating for Ethical Use of Social Media

ERIC Educational Resources Information Center

Forbes, Dianne

2017-01-01

In a teacher education context, this study considers the use of social media for building a professional online presence and learning network. This article provides an overview of uses of social media in teacher education, presents a case study of key processes in relation to professional online presence and learning networks, and highlights…

Arabizing Obama: Media's Racial Pathologies and the Rise of Postmodern Racism

ERIC Educational Resources Information Center

Labidi, Imed

2012-01-01

The media's power to shape our views of reality, our socialization, and our politics is indisputable. As we increasingly discover and interpret the world through the screen of our TVs, media narratives and images construct for us confusing representations of reality. In the process, our ability to experience the real is reduced along with our…

Analyzing Public Discourse: Using Media Content Analysis to Understand the Policy Process

ERIC Educational Resources Information Center

Saraisky, Nancy Green

2016-01-01

One of the most basic and obvious sources of data for education policy analysis is text. This article discusses content analysis as an important part of the methodological toolbox for elucidating patterns and trends about education policy. Focusing specifically on media, I show how media content analysis can produce nuanced insights about the ways…

Media, racism and public health psychology.

PubMed

Nairn, Raymond; Pega, Frank; McCreanor, Tim; Rankine, Jenny; Barnes, Angela

2006-03-01

International literature has established that racism contributes to ill-health of migrants, ethnic minorities and indigenous peoples. Racism generally negates wellbeing, adversely affecting physical and psychological health. Numerous studies have shown that media contribute marginalizing particular ethnic and cultural groups depicting them primarily as problems for and threats to the dominant. This articles frames media representations of, and their effect on, the indigenous Maori of Aotearoa, New Zealand within the ongoing processes of colonization. We argue that reflects the media contribution to maintenance and naturalisation of colonial relationships and seek to include critical media scholarship in a critical public health psychology.

A Comprehensive Examination of the Determinants for Food Risk Perception: Focusing on Psychometric Factors, Perceivers' Characteristics, and Media Use.

PubMed

You, Myoungsoon; Ju, Youngkee

2017-01-01

Risk characteristics within a psychometric paradigm have been of major concern in studies of food risk perception. This study compared the influence of psychometric factors, perceivers' characteristics (i.e., risk attitude, trust, and favorability of the country of origin), and that of the news media on the levels of food risk perception. The interaction of news media with the other two factors was also examined. A nationwide survey (n = 1,500) was conducted. The foods under investigation were Chinese processed foods and Japanese seafood imported to South Korea. In both cases, hierarchical multiple regression analyses revealed that psychometric factors had the greatest influence on food risk perception, followed by perceivers' characteristics and media use. In addition, our results showed that the effect of perceived benefit and dread in Chinese food were salient only for those with little media use. The implication of the interaction effect on food risk perception is discussed in terms of accessibility and limited capacity of information processing.

Video Tutorial of Continental Food

NASA Astrophysics Data System (ADS)

Nurani, A. S.; Juwaedah, A.; Mahmudatussa'adah, A.

2018-02-01

This research is motivated by the belief in the importance of media in a learning process. Media as an intermediary serves to focus on the attention of learners. Selection of appropriate learning media is very influential on the success of the delivery of information itself both in terms of cognitive, affective and skills. Continental food is a course that studies food that comes from Europe and is very complex. To reduce verbalism and provide more real learning, then the tutorial media is needed. Media tutorials that are audio visual can provide a more concrete learning experience. The purpose of this research is to develop tutorial media in the form of video. The method used is the development method with the stages of analyzing the learning objectives, creating a story board, validating the story board, revising the story board and making video tutorial media. The results show that the making of storyboards should be very thorough, and detailed in accordance with the learning objectives to reduce errors in video capture so as to save time, cost and effort. In video capturing, lighting, shooting angles, and soundproofing make an excellent contribution to the quality of tutorial video produced. In shooting should focus more on tools, materials, and processing. Video tutorials should be interactive and two-way.

Multimedia architectures: from desktop systems to portable appliances

NASA Astrophysics Data System (ADS)

Bhaskaran, Vasudev; Konstantinides, Konstantinos; Natarajan, Balas R.

1997-01-01

Future desktop and portable computing systems will have as their core an integrated multimedia system. Such a system will seamlessly combine digital video, digital audio, computer animation, text, and graphics. Furthermore, such a system will allow for mixed-media creation, dissemination, and interactive access in real time. Multimedia architectures that need to support these functions have traditionally required special display and processing units for the different media types. This approach tends to be expensive and is inefficient in its use of silicon. Furthermore, such media-specific processing units are unable to cope with the fluid nature of the multimedia market wherein the needs and standards are changing and system manufacturers may demand a single component media engine across a range of products. This constraint has led to a shift towards providing a single-component multimedia specific computing engine that can be integrated easily within desktop systems, tethered consumer appliances, or portable appliances. In this paper, we review some of the recent architectural efforts in developing integrated media systems. We primarily focus on two efforts, namely the evolution of multimedia-capable general purpose processors and a more recent effort in developing single component mixed media co-processors. Design considerations that could facilitate the migration of these technologies to a portable integrated media system also are presented.

Composition and process for separating cesium ions from an acidic aqueous solution also containing other ions

DOEpatents

Dietz, Mark L.; Horwitz, E. Philip; Bartsch, Richard A.; Barrans, Jr., Richard E.; Rausch, David

1999-01-01

A crown ether cesium ion extractant is disclosed as is its synthesis. The crown ether cesium ion extractant is useful for the selective purification of cesium ions from aqueous acidic media, and more particularly useful for the isolation of radioactive cesium-137 from nuclear waste streams. Processes for isolating cesium ions from aqueous acidic media using the crown ether cesium extractant are disclosed as are processes for recycling the crown ether cesium extractant and processes for recovering cesium from a crown ether cesium extractant solution.

Composition and process for separating cesium ions from an acidic aqueous solution also containing other ions

DOEpatents

Dietz, M.L.; Horwitz, E.P.; Bartsch, R.A.; Barrans, R.E. Jr.; Rausch, D.

1999-03-30

A crown ether cesium ion extractant is disclosed as is its synthesis. The crown ether cesium ion extractant is useful for the selective purification of cesium ions from aqueous acidic media, and more particularly useful for the isolation of radioactive cesium-137 from nuclear waste streams. Processes for isolating cesium ions from aqueous acidic media using the crown ether cesium extractant are disclosed as are processes for recycling the crown ether cesium extractant and processes for recovering cesium from a crown ether cesium extractant solution. 4 figs.

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

Garn, Troy G; Law, Jack D; Greenhalgh, Mitchell R

A composite media including at least one crystalline aluminosilicate material in polyacrylonitrile. A method of forming a composite media is also disclosed. The method comprises dissolving polyacrylonitrile in an organic solvent to form a matrix solution. At least one crystalline aluminosilicate material is combined with the matrix solution to form a composite media solution. The organic solvent present in the composite media solution is diluted. The composite media solution is solidified. In addition, a method of processing a fluid stream is disclosed. The method comprises providing a beads of a composite media comprising at least one crystalline aluminosilicate material dispersedmore » in a polyacrylonitrile matrix. The beads of the composite media are contacted with a fluid stream comprising at least one constituent. The at least one constituent is substantially removed from the fluid stream.« less

Sense-making for intelligence analysis on social media data

NASA Astrophysics Data System (ADS)

Pritzkau, Albert

2016-05-01

Social networks, in particular online social networks as a subset, enable the analysis of social relationships which are represented by interaction, collaboration, or other sorts of influence between people. Any set of people and their internal social relationships can be modelled as a general social graph. These relationships are formed by exchanging emails, making phone calls, or carrying out a range of other activities that build up the network. This paper presents an overview of current approaches to utilizing social media as a ubiquitous sensor network in the context of national and global security. Exploitation of social media is usually an interdisciplinary endeavour, in which the relevant technologies and methods are identified and linked in order ultimately demonstrate selected applications. Effective and efficient intelligence is usually accomplished in a combined human and computer effort. Indeed, the intelligence process heavily depends on combining a human's flexibility, creativity, and cognitive ability with the bandwidth and processing power of today's computers. To improve the usability and accuracy of the intelligence analysis we will have to rely on data-processing tools at the level of natural language. Especially the collection and transformation of unstructured data into actionable, structured data requires scalable computational algorithms ranging from Artificial Intelligence, via Machine Learning, to Natural Language Processing (NLP). To support intelligence analysis on social media data, social media analytics is concerned with developing and evaluating computational tools and frameworks to collect, monitor, analyze, summarize, and visualize social media data. Analytics methods are employed to extract of significant patterns that might not be obvious. As a result, different data representations rendering distinct aspects of content and interactions serve as a means to adapt the focus of the intelligence analysis to specific information requests.

The Challenge of Being an Instructional Designer for New Media Development: A View from the Practitioners.

ERIC Educational Resources Information Center

Liu, Min; Gibby, Scott; Quiros, Ondrea; Demps, Elaine

The rapid changes in the field of technology are redefining the process of developing technology-enhanced educational materials as well as the roles of developers involved in the process.The purpose of this study was to learn from practitioners the roles and responsibilities of an instructional designer in developing new media enhanced…

The Social Group Influences of US Health Journalists and Their Impact on the Newsmaking Process

ERIC Educational Resources Information Center

McCauley, M. P.; Blake, K. D.; Meissner, H. I.; Viswanath, K.

2013-01-01

The news media play a vital role in disseminating health information, yet little is known about the social characteristics of health journalists or the impact they have on the newsmaking process. This study examines how the social group influences of US health journalists impact two important aspects of news production--"media agenda-setting" and…

Social Media and Language Processing: How Facebook and Twitter Provide the Best Frequency Estimates for Studying Word Recognition

ERIC Educational Resources Information Center

Herdagdelen, Amaç; Marelli, Marco

2017-01-01

Corpus-based word frequencies are one of the most important predictors in language processing tasks. Frequencies based on conversational corpora (such as movie subtitles) are shown to better capture the variance in lexical decision tasks compared to traditional corpora. In this study, we show that frequencies computed from social media are…

WORKSHOP ON THE DESIGN AND OPERATION OF ADSORPTIVE MEDIA PROCESSES FOR THE REMOVAL OF ARSENIC FROM DRINKING WATER - CD OF PPT PRESENTATIONS

EPA Science Inventory

Presentation material from the Workshop on the Design and Operation of the Adsorptive Media Process for the Removal of Arsenic from Drinking Water. To request a copy of this CD contact Tom Sorg, USEPA, email: sorg.thomas@epa.gov Phone: 513 569-7370 or Fax: 513 569-7172.

Social media and communications: developing a policy to guide the flow of information.

PubMed

Midyette, J David; Youngkin, Andrew; Snow-Croft, Sheila

2014-01-01

The use of social media is ubiquitous in the daily lives of nearly three quarters of the population in the United States. This article addresses the process and results of a policy development project for a National Network of Libraries of Medicine Regional Medical Library. Content, scheduling, editing, and author responsibilities are addressed for each of the chosen media outlets, as well as the preparation of prefatory material using an online social media policy development tool.

Media and technology in adolescent sexual education and safety.

PubMed

Harris, Allyssa L

2011-01-01

Media play an important role in the lives of adolescents, providing them with opportunities for education and socialization. Media content is increasingly permeated with violence and sexual references that can be highly influential as adolescents continue the developmental process. Providing patient education is one of the cornerstones of nursing practice, and nurses are ideally suited to affect adolescent and parental education about the sexual and violent content of media. © 2011 AWHONN, the Association of Women's Health, Obstetric and Neonatal Nurses.

Application of dynamic flux balance analysis to an industrial Escherichia coli fermentation.

PubMed

Meadows, Adam L; Karnik, Rahi; Lam, Harry; Forestell, Sean; Snedecor, Brad

2010-03-01

We have developed a reactor-scale model of Escherichia coli metabolism and growth in a 1000 L process for the production of a recombinant therapeutic protein. The model consists of two distinct parts: (1) a dynamic, process specific portion that describes the time evolution of 37 process variables of relevance and (2) a flux balance based, 123-reaction metabolic model of E. coli metabolism. This model combines several previously reported modeling approaches including a growth rate-dependent biomass composition, maximum growth rate objective function, and dynamic flux balancing. In addition, we introduce concentration-dependent boundary conditions of transport fluxes, dynamic maintenance demands, and a state-dependent cellular objective. This formulation was able to describe specific runs with high-fidelity over process conditions including rich media, simultaneous acetate and glucose consumption, glucose minimal media, and phosphate depleted media. Furthermore, the model accurately describes the effect of process perturbations--such as glucose overbatching and insufficient aeration--on growth, metabolism, and titer. (c) 2009 Elsevier Inc. All rights reserved.

Moderating effects of media exposure on associations between socioeconomic position and cancer worry.

PubMed

Jung, Minsoo; Chan, Carina Ka Yee; Viswanath, Kasisomayajula

2014-01-01

Reducing fear of cancer is significant in developing cancer screening interventions, but the levels of fear may vary depending on the degrees of media exposure as well as individuals' socioeconomic positions (SEP). However, few studies have examined how the SEP influences the fear of cancer under the moderating process of general and specific forms of media exposure. We investigated the moderating effect of media exposure on the relationship between SEP and the level of fear of cancer by assuming that cancer knowledge is a covariate between those two. In particular, this study examined how exposure to both general and specific media changes the series of processes from SEP to fear of cancer. We conducted path analyses with three types of media--television, radio and the Internet--using data from a health communication survey of 613 adults in Massachusetts in the United States. We found that SEP influences cancer knowledge directly and fear of cancer indirectly, as moderated by the level of media exposure. Health-specific exposure, however, had a more consistent effect than general media exposure in lowering the fear of cancer by increasing knowledge about cancer. A higher level of health-specific exposure and greater amount of cancer knowledge lessened the fear of cancer. In addition, the more people were exposed to health information on television and the Internet, the lower the level of fear of cancer as a result. These findings indicate a relationship between SEP and fear of cancer, as moderated by the level and type of media exposure. Furthermore, the findings suggest that for early detection or cancer prevention strategies, health communication approaches through mass media need to be considered.

Regenerating an Arsenic Removal Iron-Based Adsorptive ...

EPA Pesticide Factsheets

The replacement of exhausted, adsorptive media used to remove arsenic from drinking water accounts for approximately 80% of the total operational and maintenance (O/M) costs of this commonly used small system technology. The results of three, full scale system studies of an on-site media regeneration process (Part 1) showed it to be effective in stripping arsenic and other contaminants from the exhausted media. Part 2, of this two part paper, presents information on the performance of the regenerated media to remove arsenic through multiple regeneration cycles (3) and the approximate cost savings of regeneration over media replacement. The results of the studies indicate that regenerated media is very effective in removing arsenic and the regeneration cost is substantially less than the media replacement cost. On site regeneration, therefore, provides small systems with alternative to media replacement when removing arsenic from drinking water using adsorptive media technology. Part 2 of a two part paper on the performance of the regenerated media to remove arsenic through multiple regeneration cycles (3) and the approximate cost savings of regeneration over media replacement.

Interactive learning media based on flash for basic electronic engineering development for SMK Negeri 1 Driyorejo - Gresik

NASA Astrophysics Data System (ADS)

Mandigo Anggana Raras, Gustav

2018-04-01

This research aims to produce a product in the form of flash based interactive learning media on a basic electronic engineering subject that reliable to be used and to know students’ responses about the media. The target of this research is X-TEI 1 class at SMK Negeri 1 Driyorejo – Gresik. The method used in this study is R&D that has been limited into seven stages only (1) potential and problems, (2) data collection, (3) product design, (4) product validation, (5) product revision, (6) field test, and (7) analysis and writing. The obtained result is interactive learning media named MELDASH. Validation process used to produce a valid interactive learning media. The result of media validation state that the interactive learning media has a 90.83% rating. Students’ responses to this interactive learning media is really good with 88.89% rating.

Iron coated pottery granules for arsenic removal from drinking water.

PubMed

Dong, Liangjie; Zinin, Pavel V; Cowen, James P; Ming, Li Chung

2009-09-15

A new media, iron coated pottery granules (ICPG) has been developed for As removal from drinking water. ICPG is a solid phase media that produces a stable Fe-Si surface complex for arsenic adsorption. Scanning electron microscopy (SEM) was used to document the physical attributes (grain size, pore size and distribution, surface roughness) of the ICPG media. Several advantages of the ICPG media such as (a) its granular structure, (b) its ability to absorb As via the F(0) coating on the granules' surface; (c) the inexpensive preparation process for the media from clay material make ICPG media a highly effective media for removing arsenic at normal pH. A column filtration test demonstrated that within the stability region (flow rate lower than 15L/h, EBCT >3 min), the concentration of As in the influent was always lower than 50 microg/L. The 2-week system ability test showed that the media consistently removed arsenic from test water to below the 5 microg/L level. The average removal efficiencies for total arsenic, As(III), and As(V) for a 2-week test period were 98%, 97%, and 99%, respectively, at an average flow rate of 4.1L/h and normal pH. Measurements of the Freundlich and Langmuir isotherms at normal pH show that the Freundlich constants of the ICPG are very close to those of ferric hydroxide, nanoscale zero-valent iron and much higher than those of nanocrystalline titanium dioxide. The parameter 1/n is smaller than 0.55 indicating a favorable adsorption process [K. Hristovski, A. Baumgardner, P. Westerhoff, Selecting metal oxide nanomaterials for arsenic removal in fixed bed columns: from nanopowders to aggregated nanoparticle media, J. Hazard. Mater. 147 (2007) 265-274]. The maximum adsorption capacity (q(e)) of the ICPG from the Langmuir isotherm is very close to that of nanoscale zero-valent indicating that zero-valent iron is involved in the process of the As removal from the water. The results of the toxicity characteristic leaching procedure (TCLP) analysis revealed that the media was non-hazardous, as shown by the ND (non-detectable) result for arsenic. The mechanism of As adsorption by ICPG has not been determined. Formation of Fe-Si complexes on the surface of the ICPG system may be responsible for the tight bonding of the As to the IGPC media.

Forced imbibition through model porous media

NASA Astrophysics Data System (ADS)

Odier, Celeste; Levache, Bertrand; Bartolo, Denis

2016-11-01

A number of industrial and natural process ultimately rely on two-phase flow in heterogeneous media. One of the most prominent example is oil recovery which has driven fundamental and applied research in this field for decades. Imbibition occurs when a wetting fluid displaces an immiscible fluid e.g. in a porous media. Using model microfluidic experiment we control both the geometry and wetting properties of the heterogenous media, and show that the typical front propagation picture fails when imbibition is forced and the displacing fluid is less viscous than the non-wetting fluid. We identify and quantitatively characterize four different flow regimes at the pore scale yielding markedly different imbibition patterns at large scales. In particular we will discuss the transition from a conventional 2D-front propagation scenario to a regime where the meniscus dynamics is an intrinsically 3D process.

Production data in media systems and press front ends: capture, formats and database methods

NASA Astrophysics Data System (ADS)

Karttunen, Simo

1997-02-01

The nature, purpose and data presentation features of media jobs are analyzed in relation to the content, document, process and resource management in media production. Formats are the natural way of presenting, collecting and storing information, contents, document components and final documents. The state of the art and the trends in the media formats and production data are reviewed. The types and the amount of production data are listed, e.g. events, schedules, product descriptions, reports, visual support, quality, process states and color data. The data exchange must be vendor-neutral. Adequate infrastructure and system architecture are defined for production and media data. The roles of open servers and intranets are evaluated and their potential roles as future solutions are anticipated. The press frontend is the part of print media production where large files dominate. The new output alternatives, i.e. film recorders, direct plate output (CTP and CTP-on-press) and digital, plateless printing lines need new workflow tools and very efficient file and format management. The paper analyzes the capture, formatting and storing of job files and respective production data, such as the event logs of the processes. Intranet, browsers, Java applets and open web severs will be used to capture production data, especially where intranets are used anyhow, or where several companies are networked to plan, design and use documents and printed products. The user aspects of installing intranets is stressed since there are numerous more traditional and more dedicated networking solutions on the market.

Using data from colloid transport experiments to parameterize filtration model parameters for favorable conditions

NASA Astrophysics Data System (ADS)

Kamai, Tamir; Nassar, Mohamed K.; Nelson, Kirk E.; Ginn, Timothy R.

2017-04-01

Colloid filtration in porous media spans across many disciplines and includes scenarios such as in-situ bioremediation, colloid-facilitated transport, water treatment of suspended particles and pathogenic bacteria, and transport of natural and engineered nanoparticles in the environment. Transport and deposition of colloid particles in porous media are determined by a combination of complex processes and forces. Given the convoluted physical, chemical, and biological processes involved, and the complexity of porous media in natural settings, it should not come as surprise that colloid filtration theory does not always sufficiently predict colloidal transport, and that there is still a pressing need for improved predictive capabilities. Here, instead of developing the macroscopic equation from pore-scale models, we parametrize the different terms in the macroscopic collection equation through fitting it to experimental data, by optimizing the parameters in the different terms of the equation. This way we combine a mechanistically-based filtration-equation with empirical evidence. The impact of different properties of colloids and porous media are studied by comparing experimental properties with different terms of the correlation equation. This comparison enables insight about different processes that occur during colloid transport and retention under in porous media under favorable conditions, and provides directions for future theoretical developments.

Complexity and Productivity Differentiation Models of Metallogenic Indicator Elements in Rocks and Supergene Media Around Daijiazhuang Pb-Zn Deposit in Dangchang County, Gansu Province

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

He, Jin-zhong, E-mail: viewsino@163.com; Yao, Shu-zhen; Zhang, Zhong-ping

2013-03-15

With the help of complexity indices, we quantitatively studied multifractals, frequency distributions, and linear and nonlinear characteristics of geochemical data for exploration of the Daijiazhuang Pb-Zn deposit. Furthermore, we derived productivity differentiation models of elements from thermodynamics and self-organized criticality of metallogenic systems. With respect to frequency distributions and multifractals, only Zn in rocks and most elements except Sb in secondary media, which had been derived mainly from weathering and alluviation, exhibit nonlinear distributions. The relations of productivity to concentrations of metallogenic elements and paragenic elements in rocks and those of elements strongly leached in secondary media can be seenmore » as linear addition of exponential functions with a characteristic weak chaos. The relations of associated elements such as Mo, Sb, and Hg in rocks and other elements in secondary media can be expressed as an exponential function, and the relations of one-phase self-organized geological or metallogenic processes can be represented by a power function, each representing secondary chaos or strong chaos. For secondary media, exploration data of most elements should be processed using nonlinear mathematical methods or should be transformed to linear distributions before processing using linear mathematical methods.« less

The representations of work-life balance in Canadian newspapers.

PubMed

Reece, Katherine T; Davis, Jane A; Polatajko, Helene J

2009-01-01

Work-life balance has become a topic of increasing interest in the media as well as a concern among working Canadians. Since print media discourse can both reflect and shape societal values, cultural norms and ideals of workers in this country, it is important to understand this representation and its potential influence on the occupational engagement and life transitions of Canadian workers. Articles from four major Canadian newspapers published between 2003 and 2005 were used as data sources to examine the media construction of "work-life balance". Thematic analysis of 100 articles was performed using a modified affinity diagramming process. Representations within the Canadian print media conveyed both themes pertaining to the perceived experiences of imbalance and balance, as well as, a process of life balance. Obtaining balance was portrayed as an ongoing process during which an individual negotiates and sacrifices in an attempt to achieve his or her ideal level of balance. Environmental expectations and individual practices and perceptions were conveyed as reasons for the success or derailment of balance. The representations of work-life balance found in the Canadian print media were predominantly of professionals, focused on the demands of work and family, and did not appear to be a broad representation of the multiple realities that all Canadians face.

Knowledge and Authority in Shift: A Linguistic Ethnography of Multilingual News Media in the Buryat Territories of Russia

ERIC Educational Resources Information Center

Graber, Kathryn Elizabeth

2012-01-01

How might institutional projects to improve the status of minority languages and publics have unintended and contradictory consequences? This dissertation examines media and language practices in order to illuminate the everyday sociocultural processes by which the value of knowledge is figured. It focuses on news media institutions in the Buryat…

Ownership and Use of New Media by Teachers in Rural and Urban Areas of Croatia

ERIC Educational Resources Information Center

Topolovcan, Tomislav; Toplak, Tea; Matijevic, Milan

2013-01-01

The development and use of new media in the class emphasizes independent learning based on the activities of the students, constructivist learning and student-centred lessons in general. Using new media in the class does not prompt more efficient learning and teaching in itself, but can initiate the learning processes by didactically shaping the…

Constructing Narrative Ecologies as a Site for Teachers' Professional Learning with New Technologies and Media in Primary Education

ERIC Educational Resources Information Center

Turvey, Keith

2012-01-01

This article argues that to understand how new technologies and media can become co-agents in the process of pedagogical change, we first need to understand teachers' complex relationship with new technologies and media in both their personal and their professional lives. A conceptual framework is delineated for constructing a complex narrative…

American Education in the Electric Age. New Perspectives on Media and Learning.

ERIC Educational Resources Information Center

Klinge, Peter L., Ed.

A reexamination of the role of the mass media in the educational process is presented. Part One establishes the current status of American society and education as seen by Alvin Toffler and Peter L. Klinge, the editor. Also, Charles E. Silberman compares the problems of media with those of education. Part Two attempts to clearly define the effects…

The Mass Media, Public Opinion, and Public Policy Analysis: Linkage Explorations.

ERIC Educational Resources Information Center

Strouse, James C.

The purpose of this book is to explore the effects of public opinion on governmental policy making, with a special focus on the role of the mass media in this process. Specific areas covered include political campaigning, the President and the press, blacks and the media, and cable television. Topics of discussion in the ten chapters are: linkage…

Crowd-driven Ecosystem for Evolutionary Design

DTIC Science & Technology

2012-07-28

also embeds social media connections to maximize crowd engagement. Within such an environment, experts and non- traditional contributors (crowd) can...process.” The CEED platform also embeds social media connections to maximize crowd engagement. When completed, the software developed under the...track a project of interest online through other social media (namely RSS, Facebook, and Twitter) as well as on the vehicleforge website itself

Social media, social avatars and the psyche: is Facebook good for us?

PubMed

Brunskill, David

2013-12-01

This paper aims to explore how social media users represent themselves online, and to consider whether this process has inherent potential to impact upon the psyche of the individual. Advanced thinking around social media may exist on an organizational level, but on an individual level there exists a need to catch up, as the psychological dimensions of going online are significant and deserve consideration. Inherent to the experience of using social media is the self selection of favorable material to represent the individual. This process is cumulative, and effectively creates a socially-derived and socially-driven, composite online image ('social avatar'). Humans notably select their best aspects for presentation to others and the social avatar reflects this tendency, effectively facilitating the creation of a 'gap' between online image (representation) and offline identity (substance). The creation of a social avatar should therefore be an important and conscious consideration for all users of social media, not just those individuals already struggling with the task of integrating the multiple facets which make up modern personal identity. Social avatars appear to be an important factor in understanding the inherent potential for social media to affect the psyche/contribute to psychopathology within the individual.

Method and apparatus for decoupled thermo-catalytic pollution control

DOEpatents

Tabatabaie-Raissi, Ali; Muradov, Nazim Z.; Martin, Eric

2006-07-11

A new method for design and scale-up of thermocatalytic processes is disclosed. The method is based on optimizing process energetics by decoupling of the process energetics from the DRE for target contaminants. The technique is applicable to high temperature thermocatalytic reactor design and scale-up. The method is based on the implementation of polymeric and other low-pressure drop support for thermocatalytic media as well as the multifunctional catalytic media in conjunction with a novel rotating fluidized particle bed reactor.

The 3D Digital Story-telling Media on Batik Learning in Vocational High Schools

NASA Astrophysics Data System (ADS)

Widiaty, I.; Achdiani, Y.; Kuntadi, I.; Mubaroq, S. R.; Zakaria, D.

2018-02-01

The aim of this research is to make 3D digital Story-telling Media on Batik Learning in Vocational High School. The digital story-telling developed in this research is focused on 3D-based story-telling. In contrast to the digital story-telling that has been developed in existing learning, this research is expected to be able to improve understanding of vocational students about the value of local wisdom batik more meaningful and “live”. The process of making 3D digital story-telling media consists of two processes, namely the creation of 3D objects and the creation of 3D object viewer.

Missed Programs (You Can't TiVo This One): Why Psychologists Should Study Media.

PubMed

Okdie, Bradley M; Ewoldsen, David R; Muscanell, Nicole L; Guadagno, Rosanna E; Eno, Cassie A; Velez, John A; Dunn, Robert A; O'Mally, Jamie; Smith, Lauren Reichart

2014-03-01

Media psychology involves the scientific examination of the cognitive processes and behavior involved in the selection, use, interpretation, and effects of communication across a variety of media (e.g., via the Internet, television, telephone, film). Media are central to people's lives, with projections indicating that an average person spent over 3,515 hours using media in 2012. New technologies are increasing the importance of media. Data from two content analyses demonstrate the underrepresentation of media psychology in mainstream psychological literature and in undergraduate and graduate psychology course offerings. We argue for the importance of a psychological approach to the study of media because of its presence in people's lives and because psychologists use it in their research and their choices may affect the external validity of their findings. We provide a useful framework from which psychologists can approach the study of media, and we conclude with recommendations for further areas of scientific inquiry relevant to psychological science. © The Author(s) 2014.

Microspectroscopic investigation of the membrane clogging during the sterile filtration of the growth media for mammalian cell culture.

PubMed

Cao, Xiaolin; Loussaert, James A; Wen, Zai-qing

2016-02-05

Growth media for mammalian cell culture are very complex mixtures of several dozens of ingredients, and thus the preparation of qualified media is critical to viable cell density and final product titers. For liquid media prepared from powdered ingredients, sterile filtration is required prior to use to safeguard the cell culture process. Recently one batch of our prepared media failed to pass through the sterile filtration due to the membrane clogging. In this study, we report the root cause analysis of the failed sterile filtration based on the investigations of both the fouling media and the clogged membranes with multiple microspectroscopic techniques. Cellular particles or fragments were identified in the fouling media and on the surfaces of the clogged membranes, which were presumably introduced to the media from the bacterial contamination. This study demonstrated that microspectroscopic techniques may be used to rapidly identify both microbial particles and inorganic precipitates in the cell culture media. Copyright © 2015 Elsevier B.V. All rights reserved.

Evolution of process control parameters during extended co-composting of green waste and solid fraction of cattle slurry to obtain growing media.

PubMed

Cáceres, Rafaela; Coromina, Narcís; Malińska, Krystyna; Marfà, Oriol

2015-03-01

This study aimed to monitor process parameters when two by-products (green waste - GW, and the solid fraction of cattle slurry - SFCS) were composted to obtain growing media. Using compost in growing medium mixtures involves prolonged composting processes that can last at least half a year. It is therefore crucial to study the parameters that affect compost stability as measured in the field in order to shorten the composting process at composting facilities. Two mixtures were prepared: GW25 (25% GW and 75% SFCS, v/v) and GW75 (75% GW and 25% SFCS, v/v). The different raw mixtures resulted in the production of two different growing media, and the evolution of process management parameters was different. A new parameter has been proposed to deal with attaining the thermophilic temperature range and maintaining it during composting, not only it would be useful to optimize composting processes, but also to assess the hygienization degree. Copyright © 2014 Elsevier Ltd. All rights reserved.

Imprint process performance for patterned media at densities greater than 1Tb/in2

NASA Astrophysics Data System (ADS)

Ye, Zhengmao; Carden, Scott; Hellebrekers, Paul; LaBrake, Dwayne; Resnick, Douglas J.; Melliar-Smith, M.; Sreenivasan, S. V.

2012-03-01

The use of bit pattern media beyond densities of 1Tb/in2 requires the ability to pattern dimensions to sub 10nm. This paper describes the techniques used to reach these dimensions with imprint lithography and avoid such challenges as pattern collapse, by developing improved resist materials with higher strength, and utilizing a reverse tone J-FIL/R process.

Effects of Test Media on Different EFL Test-Takers in Writing Scores and in the Cognitive Writing Process

ERIC Educational Resources Information Center

Zou, Xiao-Ling; Chen, Yan-Min

2016-01-01

The effects of computer and paper test media on EFL test-takers with different computer familiarity in writing scores and in the cognitive writing process have been comprehensively explored from the learners' aspect as well as on the basis of related theories and practice. The results indicate significant differences in test scores among the…

Selection and Evaluation of Media for Behavioral Health Interventions Employing Critical Media Analysis.

PubMed

Wilson, Patrick A; Cherenack, Emily M; Jadwin-Cakmak, Laura; Harper, Gary W

2018-01-01

Although a growing number of psychosocial health promotion interventions use the critical analysis of media to facilitate behavior change, no specific guidelines exist to assist researchers and practitioners in the selection and evaluation of culturally relevant media stimuli for intervention development. Mobilizing Our Voices for Empowerment is a critical consciousness-based health enhancement intervention for HIV-positive Black young gay/bisexual men that employs the critical analysis of popular media. In the process of developing and testing this intervention, feedback on media stimuli was collected from youth advisory board members (n = 8), focus group participants (n = 19), intervention participants (n = 40), and intervention facilitators (n = 6). A thematic analysis of qualitative data resulted in the identification of four key attributes of media stimuli and participants' responses to media stimuli that are important to consider when selecting and evaluating media stimuli for use in behavioral health interventions employing the critical analysis of media: comprehension, relevance, emotionality, and action. These four attributes are defined and presented as a framework for evaluating media, and adaptable tools are provided based on this framework to guide researchers and practitioners in the selection and evaluation of media for similar interventions.

22 CFR 211.6 - Processing, repackaging, and labeling commodities.

Code of Federal Regulations, 2010 CFR

2010-04-01

... containers as provided in paragraph (c) of this section, and banners, posters, or similar media which shall... cooperating sponsor shall, to the extent practicable, display banners, posters, or other media, and imprint on...

22 CFR 211.6 - Processing, repackaging, and labeling commodities.

Code of Federal Regulations, 2013 CFR

2013-04-01

... containers as provided in paragraph (c) of this section, and banners, posters, or similar media which shall... cooperating sponsor shall, to the extent practicable, display banners, posters, or other media, and imprint on...

22 CFR 211.6 - Processing, repackaging, and labeling commodities.

Code of Federal Regulations, 2011 CFR

2011-04-01

... containers as provided in paragraph (c) of this section, and banners, posters, or similar media which shall... cooperating sponsor shall, to the extent practicable, display banners, posters, or other media, and imprint on...

22 CFR 211.6 - Processing, repackaging, and labeling commodities.

Code of Federal Regulations, 2014 CFR

2014-04-01

... containers as provided in paragraph (c) of this section, and banners, posters, or similar media which shall... cooperating sponsor shall, to the extent practicable, display banners, posters, or other media, and imprint on...

22 CFR 211.6 - Processing, repackaging, and labeling commodities.

Code of Federal Regulations, 2012 CFR

2012-04-01

... containers as provided in paragraph (c) of this section, and banners, posters, or similar media which shall... cooperating sponsor shall, to the extent practicable, display banners, posters, or other media, and imprint on...

Media Notes: Bringing Government to Life.

ERIC Educational Resources Information Center

Sive, Mary Robinson

1981-01-01

This column examines some recent media materials for middle and high schools on federal, state, and local government; the legislative process; the presidency; the judicial branch; elections; and citizen participation. Complete ordering information is included. (Author/SJL)

Seven Essential Elements for Creating Effective Children's Media to Promote Peacebuilding: Lessons from International Coproductions of Sesame Street and Other Children's Media Programs.

PubMed

Cole, Charlotte F; Lee, June H; Bucuvalas, Abigail; Sırali, Yasemin

2018-03-01

Children's media have the capacity to prepare young learners to develop the knowledge, attitudes, and skills they need to contribute to a more peaceful world. Research suggests international coproductions of Sesame Street and other children's media efforts are linked to positive impact on how viewers perceive themselves and their own cultures, as well as how they perceive others. Creating such media, however, relies on a commitment to a complex development process where the educational needs of children are considered alongside intra- and intergroup dynamics and political realities. This paper presents a practitioners' perspective on the essential components of children's media programs for peacebuilding and, in so doing, recommends a way forward for producing children's media in this domain. © 2018 Wiley Periodicals, Inc.

The development of learning media of acid-base indicator from extract of natural colorant as an alternative media in learning chemistry

NASA Astrophysics Data System (ADS)

Nurhadi, Mukhamad; Wirhanuddin, Erwin, Muflihah, Erika, Farah; Widiyowati, Iis Intan

2017-03-01

The development of learning media of acid base indicator from extract of natural colorants as an alternative media in chemistry learning; acid-base solution by using creative problem solving model at SMA N 10 Samarinda has been done. This research aimed to create and develop the learning media from extract of natural colorants, measure its quality and effectiveness, and measure the quality of student learning outcome in acid-base solution topic by using that media. The development process used Analysis, Design, Development, Implementation, and Evaluation (ADDIE) method. The learning media of acid-base indicator was created in the form of box experiment. Its quality was in the range of very good and it was effectively applied in the learning and gave positive impact on the achievement of learning goals.

Are sexual media exposure, parental restrictions on media use and co-viewing TV and DVDs with parents and friends associated with teenagers' early sexual behaviour?☆

PubMed Central

Parkes, Alison; Wight, Daniel; Hunt, Kate; Henderson, Marion; Sargent, James

2013-01-01

Sexual content in teenagers' media diets is known to predict early sexual behaviour. Research on sexual content has not allowed for the social context of media use, which may affect selection and processing of content. This study investigated whether sexual media content and/or contextual factors (co-viewing, parental media restrictions) were associated with early sexual behaviour using 2251 14–15 year-olds from Scotland, UK. A third (n = 733) reported sexual intercourse. In multivariable analysis the likelihood of intercourse was lower with parental restriction of sexual media and same-sex peer co-viewing; but higher with mixed-sex peer co-viewing. Parental co-viewing, other parental restrictions on media and sexual film content exposure were not associated with intercourse. Findings suggest the context of media use may influence early sexual behaviour. Specific parental restrictions on sexual media may offer more protection against early sex than other restrictions or parental co-viewing. Further research is required to establish causal mechanisms. PMID:24215959

Are sexual media exposure, parental restrictions on media use and co-viewing TV and DVDs with parents and friends associated with teenagers' early sexual behaviour?

PubMed

Parkes, Alison; Wight, Daniel; Hunt, Kate; Henderson, Marion; Sargent, James

2013-12-01

Sexual content in teenagers' media diets is known to predict early sexual behaviour. Research on sexual content has not allowed for the social context of media use, which may affect selection and processing of content. This study investigated whether sexual media content and/or contextual factors (co-viewing, parental media restrictions) were associated with early sexual behaviour using 2251 14-15 year-olds from Scotland, UK. A third (n = 733) reported sexual intercourse. In multivariable analysis the likelihood of intercourse was lower with parental restriction of sexual media and same-sex peer co-viewing; but higher with mixed-sex peer co-viewing. Parental co-viewing, other parental restrictions on media and sexual film content exposure were not associated with intercourse. Findings suggest the context of media use may influence early sexual behaviour. Specific parental restrictions on sexual media may offer more protection against early sex than other restrictions or parental co-viewing. Further research is required to establish causal mechanisms. Copyright © 2013 The Authors. Published by Elsevier Ltd.. All rights reserved.

A secure transmission scheme of streaming media based on the encrypted control message

NASA Astrophysics Data System (ADS)

Li, Bing; Jin, Zhigang; Shu, Yantai; Yu, Li

2007-09-01

As the use of streaming media applications increased dramatically in recent years, streaming media security becomes an important presumption, protecting the privacy. This paper proposes a new encryption scheme in view of characteristics of streaming media and the disadvantage of the living method: encrypt the control message in the streaming media with the high security lever and permute and confuse the data which is non control message according to the corresponding control message. Here the so-called control message refers to the key data of the streaming media, including the streaming media header and the header of the video frame, and the seed key. We encrypt the control message using the public key encryption algorithm which can provide high security lever, such as RSA. At the same time we make use of the seed key to generate key stream, from which the permutation list P responding to GOP (group of picture) is derived. The plain text of the non-control message XORs the key stream and gets the middle cipher text. And then obtained one is permutated according to P. In contrast the decryption process is the inverse process of the above. We have set up a testbed for the above scheme and found our scheme is six to eight times faster than the conventional method. It can be applied not only between PCs but also between handheld devices.

A System Dynamics Approach for Information Technology Implementation and Sustainment

DTIC Science & Technology

2003-03-01

mass media in nature, or (2) originating from either local or cosmopolite sources (Rogers, 1995). Mass media channels are a means of transmitting...interpersonal channels are more important at the persuasion stage in the innovation-decision process (Rogers, 1995). Cosmopolite communication channels...are those from outside the social system of study” (Rogers, 1995:196). Interpersonal channels can be either local or cosmopolite , whereas mass media

Learning a Foreign Language through the Media. CLCS Occasional Paper No. 18.

ERIC Educational Resources Information Center

Devitt, Sean M.

The use of mass media as a means of learning a foreign language from the beginning of language study is discussed. Using the media enables many of the features of the natural language acquisition process to be brought into play in a way that much current language teaching material does not. This position is supported by recent research into the…

Capture of Aerosols by Iodinated Fiber Media

DTIC Science & Technology

2004-09-15

fibrous media if provided with 70-80% relative humidity and atmospheric dust (Maus et al., 2000). Spore -forming bacteria such as Bacillus anthracis are...States. The anthrax spores sent out during these attacks were classified as being highly concentrated and processed to be disseminated and inhaled...media, and produce more undesirable bioaerosols. This phenomenon has been reported in many studies in heating, ventilation, and air conditioning ( HVAC

Examining How Media Literacy and Personality Factors Predict Skepticism Toward Alcohol Advertising.

PubMed

Austin, Erica Weintraub; Muldrow, Adrienne; Austin, Bruce W

2016-05-01

To examine the potential effectiveness of media literacy education in the context of well-established personality factors, a survey of 472 young adults, focused on the issue of alcohol marketing messages, examined how individual differences in personality associate with constructs representing aspects of media literacy. The results showed that need for cognition predicted social expectancies and wishful identification with media portrayals in alcohol advertising only through critical thinking about media sources and media content, which are foci of media literacy education. Need for affect did not associate with increased or diminished levels of critical thinking. Critical thinking about sources and messages affected skepticism, represented by expectancies through wishful identification, consistent with the message interpretation process model. The results support the view that critical thinking about media sources is an important precursor to critical thinking about media messages. The results also suggest that critical thinking about media (i.e., media literacy) reflects more than personality characteristics and can affect wishful identification with role models observed in media, which appears to be a key influence on decision making. This adds support to the view that media literacy education can improve decision making across personality types regarding alcohol use by decreasing the potential influence of alcohol marketing messages.

Microfluidic Model Porous Media: Fabrication and Applications.

PubMed

Anbari, Alimohammad; Chien, Hung-Ta; Datta, Sujit S; Deng, Wen; Weitz, David A; Fan, Jing

2018-05-01

Complex fluid flow in porous media is ubiquitous in many natural and industrial processes. Direct visualization of the fluid structure and flow dynamics is critical for understanding and eventually manipulating these processes. However, the opacity of realistic porous media makes such visualization very challenging. Micromodels, microfluidic model porous media systems, have been developed to address this challenge. They provide a transparent interconnected porous network that enables the optical visualization of the complex fluid flow occurring inside at the pore scale. In this Review, the materials and fabrication methods to make micromodels, the main research activities that are conducted with micromodels and their applications in petroleum, geologic, and environmental engineering, as well as in the food and wood industries, are discussed. The potential applications of micromodels in other areas are also discussed and the key issues that should be addressed in the near future are proposed. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Gaining insights from social media language: Methodologies and challenges.

PubMed

Kern, Margaret L; Park, Gregory; Eichstaedt, Johannes C; Schwartz, H Andrew; Sap, Maarten; Smith, Laura K; Ungar, Lyle H

2016-12-01

Language data available through social media provide opportunities to study people at an unprecedented scale. However, little guidance is available to psychologists who want to enter this area of research. Drawing on tools and techniques developed in natural language processing, we first introduce psychologists to social media language research, identifying descriptive and predictive analyses that language data allow. Second, we describe how raw language data can be accessed and quantified for inclusion in subsequent analyses, exploring personality as expressed on Facebook to illustrate. Third, we highlight challenges and issues to be considered, including accessing and processing the data, interpreting effects, and ethical issues. Social media has become a valuable part of social life, and there is much we can learn by bringing together the tools of computer science with the theories and insights of psychology. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

Developing a social media platform for nurses.

PubMed

Jackson, Jennifer; Kennedy, Maggie

2015-11-18

Social media tools provide opportunities for nurses to connect with colleagues and patients and to advance personally and professionally. This article describes the process of developing an innovative social media platform at a large, multi-centre teaching hospital, The Ottawa Hospital, Canada, and its benefits for nurses. The platform, TOH Nurses, was developed using a nursing process approach, involving assessment, planning, implementation and evaluation. The aim of this initiative was to address the barriers to communication inherent in the large number of nurses employed by the organisation, the physical size of the multi-centre hospital and the shift-work nature of nursing. The platform was used to provide educational materials for clinical nurses, and to share information about professional practice. The implications of using a social media platform in a healthcare setting were considered carefully during its development and implementation, including concerns regarding privacy and confidentiality.

KENNEDY SPACE CENTER, FLA. - NASA Vehicle Manager Scott Thurston talks to the media in the Orbiter Processing Facility. The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System.

NASA Image and Video Library

2003-09-26

KENNEDY SPACE CENTER, FLA. - NASA Vehicle Manager Scott Thurston talks to the media in the Orbiter Processing Facility. The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System.

Object-based media and stream-based computing

NASA Astrophysics Data System (ADS)

Bove, V. Michael, Jr.

1998-03-01

Object-based media refers to the representation of audiovisual information as a collection of objects - the result of scene-analysis algorithms - and a script describing how they are to be rendered for display. Such multimedia presentations can adapt to viewing circumstances as well as to viewer preferences and behavior, and can provide a richer link between content creator and consumer. With faster networks and processors, such ideas become applicable to live interpersonal communications as well, creating a more natural and productive alternative to traditional videoconferencing. In this paper is outlined an example of object-based media algorithms and applications developed by my group, and present new hardware architectures and software methods that we have developed to enable meeting the computational requirements of object- based and other advanced media representations. In particular we describe stream-based processing, which enables automatic run-time parallelization of multidimensional signal processing tasks even given heterogenous computational resources.

Inept media trials of clinical trials

PubMed Central

Ramamurthy, N. V.

2012-01-01

The Indian media in general, with the exception of a few domain expert journalists, have failed to comprehend the complexities involved in the clinical trial process. In the run up to the deadline-based coverage of a story, a majority of them fall short in conveying the right perspective to readers, but nevertheless they have been successful in sensationalizing an event in this arena. Possibly by unintended misrepresentation, or mostly out of ignorance of the nuances involved in the clinical trials process, the media has done more harm than good, and got away with it. On the other side, the industry has been reluctant to engage with the media in a meaningful dialog for too long now. It bears not only the consequences of damage to its professional reputation following such reportage, but also the repercussions of unnecessary clampdowns by the regulators. Science journalism in India has yet to rise as a profession. PMID:22701819

Enzyme processing of textiles in reverse micellar solution.

PubMed

Sawada, K; Ueda, M

2001-08-23

Scouring of cotton using pectinase enzyme, bioscouring, in reverse micellar system was studied. The effectiveness of bioscouring was evaluated by measuring weight loss of cotton, analyzing pectin and cotton wax remaining and by wetness testing. Pectinase enzyme showed excellent activity even in organic media, and the effectiveness of scouring was equivalent or better than that achieved by conventional alkaline process or bioscouring in aqueous media. Enzymatic modification of wool using protease enzyme in the same system was also studied. It has found that felting property and tensile strength of wool fabrics treated by protease in reverse micellar system were superior to those in aqueous media. Possibilities of utilization of the same system for the subsequent textile dyeing process were also investigated. It was found that cotton and polyester fabrics were dyed satisfactorily by reverse micellar system compared to conventional aqueous system.

Digital case-based learning system in school.

PubMed

Gu, Peipei; Guo, Jiayang

2017-01-01

With the continuing growth of multi-media learning resources, it is important to offer methods helping learners to explore and acquire relevant learning information effectively. As services that organize multi-media learning materials together to support programming learning, the digital case-based learning system is needed. In order to create a case-oriented e-learning system, this paper concentrates on the digital case study of multi-media resources and learning processes with an integrated framework. An integration of multi-media resources, testing and learning strategies recommendation as the learning unit is proposed in the digital case-based learning framework. The learning mechanism of learning guidance, multi-media materials learning and testing feedback is supported in our project. An improved personalized genetic algorithm which incorporates preference information and usage degree into the crossover and mutation process is proposed to assemble the personalized test sheet for each learner. A learning strategies recommendation solution is proposed to recommend learning strategies for learners to help them to learn. The experiments are conducted to prove that the proposed approaches are capable of constructing personalized sheets and the effectiveness of the framework.

Digital case-based learning system in school

PubMed Central

Gu, Peipei

2017-01-01

With the continuing growth of multi-media learning resources, it is important to offer methods helping learners to explore and acquire relevant learning information effectively. As services that organize multi-media learning materials together to support programming learning, the digital case-based learning system is needed. In order to create a case-oriented e-learning system, this paper concentrates on the digital case study of multi-media resources and learning processes with an integrated framework. An integration of multi-media resources, testing and learning strategies recommendation as the learning unit is proposed in the digital case-based learning framework. The learning mechanism of learning guidance, multi-media materials learning and testing feedback is supported in our project. An improved personalized genetic algorithm which incorporates preference information and usage degree into the crossover and mutation process is proposed to assemble the personalized test sheet for each learner. A learning strategies recommendation solution is proposed to recommend learning strategies for learners to help them to learn. The experiments are conducted to prove that the proposed approaches are capable of constructing personalized sheets and the effectiveness of the framework. PMID:29107965

Event-Based Media Enrichment Using an Adaptive Probabilistic Hypergraph Model.

PubMed

Liu, Xueliang; Wang, Meng; Yin, Bao-Cai; Huet, Benoit; Li, Xuelong

2015-11-01

Nowadays, with the continual development of digital capture technologies and social media services, a vast number of media documents are captured and shared online to help attendees record their experience during events. In this paper, we present a method combining semantic inference and multimodal analysis for automatically finding media content to illustrate events using an adaptive probabilistic hypergraph model. In this model, media items are taken as vertices in the weighted hypergraph and the task of enriching media to illustrate events is formulated as a ranking problem. In our method, each hyperedge is constructed using the K-nearest neighbors of a given media document. We also employ a probabilistic representation, which assigns each vertex to a hyperedge in a probabilistic way, to further exploit the correlation among media data. Furthermore, we optimize the hypergraph weights in a regularization framework, which is solved as a second-order cone problem. The approach is initiated by seed media and then used to rank the media documents using a transductive inference process. The results obtained from validating the approach on an event dataset collected from EventMedia demonstrate the effectiveness of the proposed approach.

Focusing on media body ideal images triggers food intake among restrained eaters: a test of restraint theory and the elaboration likelihood model.

PubMed

Boyce, Jessica A; Kuijer, Roeline G

2014-04-01

Although research consistently shows that images of thin women in the media (media body ideals) affect women negatively (e.g., increased weight dissatisfaction and food intake), this effect is less clear among restrained eaters. The majority of experiments demonstrate that restrained eaters - identified with the Restraint Scale - consume more food than do other participants after viewing media body ideal images; whereas a minority of experiments suggest that such images trigger restrained eaters' dietary restraint. Weight satisfaction and mood results are just as variable. One reason for these inconsistent results might be that different methods of image exposure (e.g., slideshow vs. film) afford varying levels of attention. Therefore, we manipulated attention levels and measured participants' weight satisfaction and food intake. We based our hypotheses on the elaboration likelihood model and on restraint theory. We hypothesised that advertent (i.e., processing the images via central routes of persuasion) and inadvertent (i.e., processing the images via peripheral routes of persuasion) exposure would trigger differing degrees of weight dissatisfaction and dietary disinhibition among restrained eaters (cf. restraint theory). Participants (N = 174) were assigned to one of four conditions: advertent or inadvertent exposure to media or control images. The dependent variables were measured in a supposedly unrelated study. Although restrained eaters' weight satisfaction was not significantly affected by either media exposure condition, advertent (but not inadvertent) media exposure triggered restrained eaters' eating. These results suggest that teaching restrained eaters how to pay less attention to media body ideal images might be an effective strategy in media-literary interventions. Copyright © 2014 Elsevier Ltd. All rights reserved.

A Quantitative and Qualitative Assessment of Verbal Short-Term Memory and Phonological Processing in 8-Year-Olds with a History of Repetitive Otitis Media

ERIC Educational Resources Information Center

Majerus, Steve; Amand, Pierre; Boniver, Vincent; Demanez, Jean-Pierre; Demanez, Laurent; Van der Linden, Martial

2005-01-01

Language outcome in children experiencing fluctuant hearing loss due to otitis media (OME) remains highly equivocal. In the current study, we assessed performance on highly sensitive verbal short-term memory (STM), new word learning and phonological processing tasks in 8-year-old children who had suffered from recurrent OME before the age of 3.…

A personal reflection on social media in medicine: I stand, no wiser than before.

PubMed

Weiner, John

2015-04-01

Social media has enabled information, communication and reach for health professionals. There are clear benefits to patients and consumers when health information is broadcast. But there are unanswered questions on professionalism, education, and the complex mentoring relationship between doctor and student. This personal perspective raises a number of questions: What is online medical professionalism? Can online medical professionalism be taught? Can online medical professionalism be enforced? Is an online presence necessary to achieve the highest level of clinical excellence? Is there evidence that social media is superior to traditional methods of teaching in medical education? Does social media encourage multitasking and impairment of the learning process? Are there downsides to the perfunctory laconic nature of social media? Does social media waste time that is better spent attaining clinical skills?

Paint removal using wheat starch blast media

NASA Astrophysics Data System (ADS)

Foster, Terry; Oestreich, John

1993-03-01

A review of the Wheat Starch Blasting technology is presented. Laboratory evaluations covering Almen Arc testing on bare 2024-T3 aluminum and magnesium, as well as crack detection on 7075-T6 bare aluminum, are discussed. Comparisons with Type V plastic media show lower residual stresses are achieved on aluminum and magnesium with wheat starch media. Dry blasting effects on the detection of cracks confirms better crack visibility with wheat starch media versus Type V or Type II plastic media. Testing of wheat starch media in several composite test programs, including fiberglass, Kevlar, and graphite-epoxy composites, showed no fiber damage. Process developments and production experience at the first U.S. aircraft stripping facility are also reviewed. Corporate and regional aircraft are being stripped in this three nozzle dry blast hanger.

Value of social media in reaching and engaging employers in Total Worker Health.

PubMed

Hudson, Heidi; Hall, Jennifer

2013-12-01

To describe the initial use of social media by the National Institute for Occupational Safety and Health (NIOSH) Total Worker Health™ (TWH) Program and the University of Iowa Healthier Workforce Center for Excellence (HWCE) Outreach Program. Social media analytics tools and process evaluation methods were used to derive initial insights on the social media strategies used by the NIOSH and the HWCE. The on-line community size for the NIOSH TWH Program indicated 100% growth in 6 months; however, social media platforms have been slow to gain participation among employers. The NIOSH TWH Program and the HWCE Outreach Program have found social media tools as an effective way to expand reach, foster engagement, and gain understanding of audience interests around TWH concepts. More needs to be known about how to best use social media to reach and engage target audiences on issues relevant to TWH.

Moving granular-bed filter development program, Option III: Development of moving granular-bed filter technology for multi-contaminant control. Task 14: Test plan; Topical report

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

Haas, J.C.; Olivo, C.A.; Wilson, K.B.

1994-04-01

An experimental test plan has been prepared for DOE/METC review and approval to develop a filter media suitable for multi-contaminant control in granular-bed filter (GBF) applications. The plan includes identification, development, and demonstration of methods for enhanced media morphology, chemical reactivity, and mechanical strength. The test plan includes media preparation methods, physical and chemical characterization methods for fresh and reacted media, media evaluation criteria, details of test and analytical equipment, and test matrix of the proposed media testing. A filter media composed of agglomerated limestone and clay was determined to be the best candidate for multi-contaminate control in GBF operation.more » The combined limestone/clay agglomerate has the potential to remove sulfur and alkali species, in addition to particulate, and possibly halogens and trace heavy metals from coal process streams.« less

SRB Processing Facilities Media Event

NASA Image and Video Library

2016-03-01

Inside the Booster Fabrication Facility (BFF) at NASA’s Kennedy Space Center in Florida, members of the news media view a forward skirt that will be used on a solid rocket booster for NASA’s Space Launch System (SLS) rocket. Orbital ATK is a contractor for NASA’s Marshall Space Flight Center in Alabama, and operates the BFF to prepare aft booster segments and hardware for the SLS solid rocket boosters. Rick Serfozo, Orbital ATK Florida site director, talks to the media. The SLS rocket and Orion spacecraft will launch on Exploration Mission-1 in 2018. The Ground Systems Development and Operations Program is preparing the infrastructure to process and launch spacecraft for deep-space missions and the journey to Mars.

Mesoscopic modeling of multi-physicochemical transport phenomena in porous media

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

Kang, Qinjin; Wang, Moran; Mukherjee, Partha P

2009-01-01

We present our recent progress on mesoscopic modeling of multi-physicochemical transport phenomena in porous media based on the lattice Boltzmann method. Simulation examples include injection of CO{sub 2} saturated brine into a limestone rock, two-phase behavior and flooding phenomena in polymer electrolyte fuel cells, and electroosmosis in homogeneously charged porous media. It is shown that the lattice Boltzmann method can account for multiple, coupled physicochemical processes in these systems and can shed some light on the underlying physics occuning at the fundamental scale. Therefore, it can be a potential powerful numerical tool to analyze multi-physicochemical processes in various energy, earth,more » and environmental systems.« less

Mass Communication Functions in a Media-Rich Developing Society

ERIC Educational Resources Information Center

Chaffee, Steven H.; Izcaray, Fausto

1975-01-01

Discusses media-centered communication research models and applies them to a field setting in Venezuela in an attempt to assess the extent to which social processes depend on mass communication. See CS 703 632 for subscription information. (MH)

29 CFR 11.13 - Public participation.

Code of Federal Regulations, 2010 CFR

2010-07-01

... other public media likely to generate local participation in the agency process as ways of supplementing the notices otherwise specified in this part. The use of such public media does not, however, require or authorized the use of paid advertising. ...

Photochemistry in Organized Media.

ERIC Educational Resources Information Center

Fendler, Janos H.

1983-01-01

Describes common artificially produced organized media such as colloids, surfactants, and polymers and their usefulness in studying complex biochemical processes. Discusses selected recent photophysical and photochemical exploitations of these systems, including artificial photosynthesis, in situ generation of colloidal gold and platinum,…

Edmodo social learning network for elementary school mathematics learning

NASA Astrophysics Data System (ADS)

Ariani, Y.; Helsa, Y.; Ahmad, S.; Prahmana, RCI

2017-12-01

A developed instructional media can be as printed media, visual media, audio media, and multimedia. The development of instructional media can also take advantage of technological development by utilizing Edmodo social network. This research aims to develop a digital classroom learning model using Edmodo social learning network for elementary school mathematics learning which is practical, valid and effective in order to improve the quality of learning activities. The result of this research showed that the prototype of mathematics learning device for elementary school students using Edmodo was in good category. There were 72% of students passed the assessment as a result of Edmodo learning. Edmodo has become a promising way to engage students in a collaborative learning process.

SRB Processing Facilities Media Event

NASA Image and Video Library

2016-03-01

At the Rotation, Processing and Surge Facility (RPSF) at NASA’s Kennedy Space Center in Florida, members of the news media photograph the process as cranes are used to lift one of two pathfinders, or test versions, of solid rocket booster segments for NASA’s Space Launch System rocket. The Ground Systems Development and Operations Program and Jacobs Engineering, on the Test and Operations Support Contract, are preparing the booster segments, which are inert, for a series of lifts, moves and stacking operations to prepare for Exploration Mission-1, deep-space missions and the journey to Mars.

Geophysical aspects of underground fluid dynamics and mineral transformation process

NASA Astrophysics Data System (ADS)

Khramchenkov, Maxim; Khramchenkov, Eduard

2014-05-01

The description of processes of mass exchange between fluid and poly-minerals material in porous media from various kinds of rocks (primarily, sedimentary rocks) have been examined. It was shown that in some important cases there is a storage equation of non-linear diffusion equation type. In addition, process of filtration in un-swelling soils, swelling porous rocks and coupled process of consolidation and chemical interaction between fluid and particles material were considered. In the latter case equations of physical-chemical mechanics of conservation of mass for fluid and particles material were used. As it is well known, the mechanics of porous media is theoretical basis of such branches of science as rock mechanics, soil physics and so on. But at the same moment some complex processes in the geosystems lacks full theoretical description. The example of such processes is metamorphosis of rocks and correspondent variations of stress-strain state. In such processes chemical transformation of solid and fluid components, heat release and absorption, phase transitions, rock destruction occurs. Extensive usage of computational resources in limits of traditional models of the mechanics of porous media cannot guarantee full correctness of obtained models and results. The process of rocks consolidation which happens due to filtration of underground fluids is described from the position of rock mechanics. As an additional impact, let us consider the porous media consolidating under the weight of overlying rock with coupled complex geological processes, as a continuous porous medium of variable mass. Problems of obtaining of correct storage equations for coupled processes of consolidation and mass exchange between underground fluid and skeleton material are often met in catagenesi processes description. The example of such processes is metamorphosis of rocks and correspondent variations of stress-strain state. In such processes chemical transformation of solid and fluid components, heat release and absorption, phase transitions, rock destruction occurs. Extensive usage of computational resources in limits of traditional models of the mechanics of porous media cannot guarantee full correctness of obtained models and results. The present work is dedicated to the retrieval of new ways to formulate and construct such models. It was shown that in some important cases there is a governing equation of non-linear diffusion equation type (well-known Fisher equation). In addition, some geophysical aspects of filtration process in usual non-swelling soils, swelling porous rocks and coupled process of consolidation and chemical interaction between fluid and skeleton material, including earth quakes, are considered.

Pretreatment of different food rest materials for bioconversion into fungal lipid-rich biomass.

PubMed

Tzimorotas, D; Afseth, N K; Lindberg, D; Kjørlaug, O; Axelsson, L; Shapaval, V

2018-04-13

Food rest materials have the potential to be used as media components in various types of fermentations. Oleaginous filamentous fungi can utilize those components and generate a high-value lipid-rich biomass, which could be further used for animal and human use. One of the main limitations in this process is the pretreatment of food rest materials, needed to provide homogenization, sterilization and solubilization. In this study, two pretreatment processes-steam explosion and enzymatic hydrolysis-were evaluated for potato and animal protein-rich food rest materials. The pretreated food rest materials were used for the production of fungal lipid-rich biomass in submerged fermentation by the oleaginous fungus Mucor circinelloides. Cultivation media based on malt extract broth and glucose were used as controls of growth and lipid production, respectively. It was observed that media based on food rest materials can support growth and lipid production in M. circinelloides to a similar extent as the control media. More specifically, the use of potato hydrolysate combined with chicken auto-hydrolysate resulted in a higher fungal total biomass weight than using malt extract broth. When the same C/N ratio was used for glucose and rest materials-based media, similar lipid content was obtained or even higher using the latter media.

Evaporation of NaCl solution from porous media with mixed wettability

NASA Astrophysics Data System (ADS)

Bergstad, Mina; Shokri, Nima

2016-05-01

Evaporation of saline water from porous media is ubiquitous in many processes including soil salinization, crop production, and CO2 sequestration in deep saline acquirer. It is controlled by the transport properties of porous media, atmospheric conditions, and properties of the evaporating saline solution. In the present study, the effects of mixed wettability conditions on the general dynamics of water evaporation from porous media saturated with NaCl solution were investigated. To do so, we conducted a comprehensive series of evaporation experiments using sand mixtures containing different fractions of hydrophobic grains saturated with NaCl solutions. Our results showed that increasing fraction of hydrophobic grains in the mixed wettability sand pack had minor impact on the evaporative mass losses due to the presence of salt whose precipitation patterns were significantly influenced by the mixed wettability condition. Through macroscale and microscale investigations, we found formation of patchy efflorescence in the case of mixed wettability sand pack as opposed to crusty efflorescence in the case of completely hydrophilic porous media. Furthermore, the presence of salty water and hydrophobic grains in the sand pack significantly influenced the general dynamics and morphology of the receding drying front. Our results extend the understanding of the saline water evaporation from porous media with direct applications to various hydrological and engineering processes.

Rejected by peers-attracted to antisocial media content: rejection-based anger impairs moral judgment among adolescents.

PubMed

Plaisier, Xanthe S; Konijn, Elly A

2013-06-01

Adolescence is an important developmental stage during which both peers and the media have a strong influence. Both peer rejection and the use of morally adverse media are associated with negative developmental outcomes. This study examines processes by which peer rejection might drive adolescents to select antisocial media content by tying together developmental research on peer rejection and research on media effects. Assumed underlying mechanisms are rejection-based anger and frustration and the adolescent's moral judgment. A between-participants experimental design manipulated peer rejection versus acceptance in adolescents (Mage = 13.88 years; N = 74) and young adults (Mage = 21.37 years; N = 75), applying the Cyberball paradigm. Measures included the State Anger Inventory (STAXI) to assess feelings of rejection and the newly devised Media, Morals, and Youth Questionnaire (MMaYQue) to assess media preferences and moral judgment of media content. Using bootstrapping analyses, a double mediation was established: Higher levels of state anger in peer-rejected adolescents induced more tolerable moral judgments of antisocial media content, subsequently instigating a preference for antisocial media content. In contrast, the young adult sample showed no relations between peer rejection and antisocial media preference. Results are discussed within a downward spiral framework of combined peer and media influences. PsycINFO Database Record (c) 2013 APA, all rights reserved

Negotiated media effects. Peer feedback modifies effects of media's thin-body ideal on adolescent girls.

PubMed

Veldhuis, Jolanda; Konijn, Elly A; Seidell, Jacob C

2014-02-01

The present study introduces a theoretical framework on negotiated media effects. Specifically, we argue that feedback of peers on thin-body ideal media images and individual dispositions guide effects on adolescent girls' psychosocial responses to media exposure. Therefore, we examined the thin-body ideal as portrayed in media and peers' feedback on such thin-ideal images in their combined effects on adolescent girls' body dissatisfaction, objectified body consciousness, and social comparison with media models. Hence, media models and peer comments were systematically combined as incorporated entities in YouTube-formats. Hypotheses were tested in a 3 (media models: extremely thin vs. thin vs. normal weight)×3 (peer comments: 6kg-underweight vs. 3kg-underweight vs. normal-weight)×2 (appearance schematicity: lower vs. higher) between-subjects design (N=216). Results showed that peer comments indicating that a media model was 'only 3kg-underweight' exerted most negative responses, particularly in girls who strongly process appearance relevant information. Peer feedback interacts with media models in guiding perceptions of what is considered an 'ideal' body shape. Results highlight the important role of peers as well as individual predispositions in view of understanding how thin-ideal media images may impact adolescent girls' body image concerns. Copyright © 2013 Elsevier Ltd. All rights reserved.

Development of Interactive Learning Media on Kinetic Gas Theory at SMAN 2 Takalar

NASA Astrophysics Data System (ADS)

Yanti, M.; Ihsan, N.; Subaer

2017-02-01

Learning media is the one of the most factor in supporting successfully in the learning process. The purpose of this interactive media is preparing students to improve skills in laboratory practice without need for assistance and are not bound by time and place. The subject of this study was 30 students grade XI IPA SMAN 2 Takalar. This paper discuss about the development of learning media based in theory of gas kinetic. This media designed to assist students in learning independently. This media made using four software, they are Microsoft word, Snagit Editor, Macromedia Flash Player and Lectora. This media are interactive, dynamic and could support the users desires to learn and understand course of gas theory. The development produce followed the four D models. Consisted of definition phase, design phase, development phase and disseminate phase. The results showed 1) the media were valid and reliable, 2) learning tools as well as hardcopy and softcopy which links to website 3) activity learners above 80% and 4) according to the test results, the concept of comprehension of student was improved than before given interactive media.

Phosphorus removal from aquaculture effluents at the Northeast Fishery Center in Lamar, Pennsylvania using iron oxide sorption media

USGS Publications Warehouse

Sibrell, Philip; Kehler, Thomas

2016-01-01

Three different iron oxide-based sorption media samples were tested for removal of phosphorus (P) from fish hatchery effluents using fixed bed processing. Two of the media samples were derived from residuals produced by the treatment of acid mine drainage, which were then compared to granular ferric hydroxide (GFH), a commercially available sorption medium. All of the media types removed from 50 to 70% of the P from the incoming aquaculture wastewater over 70–175 days of operation without regeneration. In some of the sorption trials, the GFH media showed superior adsorption in the earlier stages of the trial, but the GFH appeared to reach saturation more quickly, so that media performance was similar – at about 60% removal of P – over a longer time period of 175 days. Media regeneration tests were also conducted for both the commercial and mine drainage media, and demonstrated longer term performance, with overall P removal of 50–55%, over 223 days of total operation, with the advantages of phosphorus recycle and media reuse.

Diffusion of Mass Media Messages among Brazilian Farmers.

ERIC Educational Resources Information Center

Schneider, Ivo A.; Fett, John H.

1978-01-01

Reports on a study designed to discover the nature of the flow of messages about recommended agricultural practices first introduced through the mass media in a developing country, and to explore the role opinion leaders plan in the process. (GW)

Charisma and Media Evangelists: An Explication and Model of Communication Influence.

ERIC Educational Resources Information Center

Lewis, Todd V.

1988-01-01

Describes the emergence of media evangelists in times of situational crisis. Discusses the appeal such leaders have to listeners possessing a "crisis mentality." Offers a model to explain the communication influence process associated with these charismatic speakers. (SR)

Qualification of the gritblast assembly and process for the inside diameter of the RSRM forward and aft domes

NASA Technical Reports Server (NTRS)

Nolan, Michael J.

1992-01-01

This gritblast assembly shall be used when refurbishing the Inside Diameter (ID) of RSRM forward and aft domes. Initial blasting is used to remove corrosion and adhesive not removed during the insulation washout. Final blasting is conducted just prior to part finalization in order to remove residual contamination and prepare the ID surface for bonding. The media used in this gritblaster is DuPont Zirclean Blasting Abrasive. It is possible to use other media in this gritblast assembly, however the only facility that has the control capability for this assembly is the Zirclean blast booth. This blast booth can not use other media without the occurrence of contamination. This automated process shall replace the manually controlled gritblasting that is currently in operation. Manual gritblasting does not provide the consistency, control, and safety that an automated process is capable of delivering.

Media and politics: Empirical data on their cross-influence in health policy.

PubMed

2011-01-01

OBJECTIVES: Despite the central influence of public policies on health and welfare, relatively little is known about actual health care policy-making processes. This presentation will offer preliminary results from a federally funded project aimed at gaining insights into the interrelations among interest-group strategies, media discourses and political debates in health care. The policy debate on health care privatization in Quebec is used as a case study. APPROACH: Two sources of data were used: media sources and political debates. Media sources were the six main provincial newspapers in Quebec, two national newspapers and The Canadian Press, as well as transcripts from specific news-related programs of three national television stations and two national radio stations. Political debates were obtained through transcripts of all question periods in the Parliament and debates in the standing committee on health. Sources were systematically searched to identify all relevant data. Multiple search syntaxes were developed and tested to maximize sensitivity and specificity. All data was entered and coded into qualitative analysis software. RESULTS: Data was analyzed longitudinally from June 2005 to January 1, 2010. Four levels of results will be presented: 1) Descriptive analysis of the interest groups involved, their policy preferences and the rhetoric they employed to support their views. 2) Descriptive analysis of the main policy proposals that structured the debate as well as of the coalition of groups behind those proposals. 3) Graphic longitudinal analysis of the intensity of the debate and of the relative importance and evolution of various policy proposals. 4) Preliminary results on the nature, direction and level of inter-influence between the policy and media agendas. CONCLUSION: This presentation provides empirical evidence on current policy-making processes in health care. It shows, unsurprisingly, that policy-making is a circumvoluted process of inter-influence among interest groups, politicians and the media. It also highlights the fact that scientific evidence actually plays a minor (if any) role in policy processes.

Peer-Based Social Media Features in Behavior Change Interventions: Systematic Review

PubMed Central

Weal, Mark; Morrison, Leanne; Yardley, Lucy

2018-01-01

Background Incorporating social media features into digital behavior change interventions (DBCIs) has the potential to contribute positively to their success. However, the lack of clear design principles to describe and guide the use of these features in behavioral interventions limits cross-study comparisons of their uses and effects. Objective The aim of this study was to provide a systematic review of DBCIs targeting modifiable behavioral risk factors that have included social media features as part of their intervention infrastructure. A taxonomy of social media features is presented to inform the development, description, and evaluation of behavioral interventions. Methods Search terms were used in 8 databases to identify DBCIs that incorporated social media features and targeted tobacco smoking, diet and nutrition, physical activities, or alcohol consumption. The screening and review process was performed by 2 independent researchers. Results A total of 5264 articles were screened, and 143 articles describing a total of 134 studies were retained for full review. The majority of studies (70%) reported positive outcomes, followed by 28% finding no effects with regard to their respective objectives and hypothesis, and 2% of the studies found that their interventions had negative outcomes. Few studies reported on the association between the inclusion of social media features and intervention effect. A taxonomy of social media features used in behavioral interventions has been presented with 36 social media features organized under 7 high-level categories. The taxonomy has been used to guide the analysis of this review. Conclusions Although social media features are commonly included in DBCIs, there is an acute lack of information with respect to their effect on outcomes and a lack of clear guidance to inform the selection process based on the features’ suitability for the different behaviors. The proposed taxonomy along with the set of recommendations included in this review will support future research aimed at isolating and reporting the effects of social media features on DBCIs, cross-study comparisons, and evaluations. PMID:29472174

Multiphase porous media modelling: A novel approach to predicting food processing performance.

PubMed

Khan, Md Imran H; Joardder, M U H; Kumar, Chandan; Karim, M A

2018-03-04

The development of a physics-based model of food processing is essential to improve the quality of processed food and optimize energy consumption. Food materials, particularly plant-based food materials, are complex in nature as they are porous and have hygroscopic properties. A multiphase porous media model for simultaneous heat and mass transfer can provide a realistic understanding of transport processes and thus can help to optimize energy consumption and improve food quality. Although the development of a multiphase porous media model for food processing is a challenging task because of its complexity, many researchers have attempted it. The primary aim of this paper is to present a comprehensive review of the multiphase models available in the literature for different methods of food processing, such as drying, frying, cooking, baking, heating, and roasting. A critical review of the parameters that should be considered for multiphase modelling is presented which includes input parameters, material properties, simulation techniques and the hypotheses. A discussion on the general trends in outcomes, such as moisture saturation, temperature profile, pressure variation, and evaporation patterns, is also presented. The paper concludes by considering key issues in the existing multiphase models and future directions for development of multiphase models.

Media multitasking in adolescence.

PubMed

Cain, Matthew S; Leonard, Julia A; Gabrieli, John D E; Finn, Amy S

2016-12-01

Media use has been on the rise in adolescents overall, and in particular, the amount of media multitasking-multiple media consumed simultaneously, such as having a text message conversation while watching TV-has been increasing. In adults, heavy media multitasking has been linked with poorer performance on a number of laboratory measures of cognition, but no relationship has yet been established between media-multitasking behavior and real-world outcomes. Examining individual differences across a group of adolescents, we found that more frequent media multitasking in daily life was associated with poorer performance on statewide standardized achievement tests of math and English in the classroom, poorer performance on behavioral measures of executive function (working memory capacity) in the laboratory, and traits of greater impulsivity and lesser growth mindset. Greater media multitasking had a relatively circumscribed set of associations, and was not related to behavioral measures of cognitive processing speed, implicit learning, or manual dexterity, or to traits of grit and conscientiousness. Thus, individual differences in adolescent media multitasking were related to specific differences in executive function and in performance on real-world academic achievement measures: More media multitasking was associated with poorer executive function ability, worse academic achievement, and a reduced growth mindset.

Cell culture media impact on drug product solution stability.

PubMed

Purdie, Jennifer L; Kowle, Ronald L; Langland, Amie L; Patel, Chetan N; Ouyang, Anli; Olson, Donald J

2016-07-08

To enable subcutaneous administration of monoclonal antibodies, drug product solutions are often needed at high concentrations. A significant risk associated with high drug product concentrations is an increase in aggregate level over the shelf-life dating period. While much work has been done to understand the impact of drug product formulation on aggregation, there is limited understanding of the link between cell culture process conditions and soluble aggregate growth in drug product. During cell culture process development, soluble aggregates are often measured at harvest using cell-free material purified by Protein A chromatography. In the work reported here, cell culture media components were evaluated with respect to their impact on aggregate levels in high concentration solution drug product during accelerated stability studies. Two components, cysteine and ferric ammonium citrate, were found to impact aggregate growth rates in our current media (version 1) leading to the development of new chemically defined media and concentrated feed formulations. The new version of media and associated concentrated feeds (version 2) were evaluated across four cell lines producing recombinant IgG4 monoclonal antibodies and a bispecific antibody. In all four cell lines, the version 2 media reduced aggregate growth over the course of a 12 week accelerated stability study compared with the version 1 media, although the degree to which aggregate growth decreased was cell line dependent. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:998-1008, 2016. © 2016 American Institute of Chemical Engineers.

Quantum-dot based nanothermometry in optical plasmonic recording media

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

Maestro, Laura Martinez; Centre for Micro-Photonics, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122; Zhang, Qiming

2014-11-03

We report on the direct experimental determination of the temperature increment caused by laser irradiation in a optical recording media constituted by a polymeric film in which gold nanorods have been incorporated. The incorporation of CdSe quantum dots in the recording media allowed for single beam thermal reading of the on-focus temperature from a simple analysis of the two-photon excited fluorescence of quantum dots. Experimental results have been compared with numerical simulations revealing an excellent agreement and opening a promising avenue for further understanding and optimization of optical writing processes and media.

The nonlocal elastomagnetoelectrostatics of disordered micropolar media

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

Kabychenkov, A. F.; Lisiovskii, F. V., E-mail: lisf@rambler.ru

The interactions of electric, magnetic, and elastic subsystems in nonlinear disordered micropolar media that possess a bending–torsion tensor and an nonsymmetric strain tensor have been studied in the framework of phenomenological elastomagnetoelectrostatics. A system of nonlinear equations for determining the ground state of these media has been obtained by the variational method. It is shown that nonuniform external and internal rotations not only create elastic stresses, but also generate additional electric and magnetic fields, while nonuniform elastic stresses and external fields induce internal rotations. The nonlocal character of the micropolar media significantly influences elementary excitations and nonlinear dynamic processes.

Developing a critical media research agenda for health psychology.

PubMed

Hodgetts, Darrin; Chamberlain, Kerry

2006-03-01

This article outlines reasons why psychologists should concern themselves with media processes, noting how media are central to contemporary life and heavily implicated in the construction of shared understandings of health. We contend that the present research focus is substantially medicalized, privileging the investigation and framing of certain topics, such as the portrayal of health professionals, medical practices, specific diseases and lifestyle-orientated interventions, and restricting attention to social determinants of health as appropriate topics for investigation. We propose an extended agenda for media health research to include structural health concerns, such as crime, poverty, homelessness and housing and social capital.

Body image, eating disorders, and the media.

PubMed

Hogan, Marjorie J; Strasburger, Victor C

2008-12-01

Adolescence is a time of tremendous change in physical appearance. Many adolescents report dissatisfaction with their body shape and size. Forming one's body image is a complex process, influenced by family, peers, and media messages. Increasing evidence shows that the combination of ubiquitous ads for foods and emphasis on female beauty and thinness in both advertising and programming leads to confusion and dissatisfaction for many young people. Sociocultural factors, specifically media exposure, play an important role in the development of disordered body image. Of significant concern, studies have revealed a link between media exposure and the likelihood of having symptoms of disordered eating or a frank eating disorder. Pediatricians and other adults must work to promote media education and make media healthier for young people. More research is needed to identify the most vulnerable children and adolescents.

A reusable microfluidic plate with alternate-choice architecture for assessing growth preference in tissue culture.

PubMed

Wittig, John H; Ryan, Allen F; Asbeck, Peter M

2005-05-15

We present the design of a chamber to evaluate in vitro how species and concentrations of soluble molecules control features of cell growth-potentially including cell proliferation, cell motility, process extension, and process termination. We have created a reusable cell culture plate that integrates a microfluidic media delivery network with standard cell culture environment. The microfluidic network delivers a stream of cell culture media with a step-like concentration gradient down a 50-100 microm wide microchannel called the presentation region. Migrating cells or growing cell processes freely choose between the two distinct chemical environments in the presentation region, but they are forced to exclusively choose either one environment or the other when they grow past a physical barrier acting as a decision point. Our fabrication technique requires little specialized equipment, and can be carried out in approximately 4 days per plate. We demonstrate the effectiveness of our plates as neurites from spiral ganglion explants preferentially grow in media containing neurotrophin-3 (NT-3) as opposed to media without NT-3. Our design could be used without modification to study dissociated cell responses to soluble growth cues, and for behavioral screening of small motile organisms.

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

Bala, Greg Alan; Bruhn, Debby Fox; Fox, Sandra Lynn

Utilization of surfactants for improved oil recovery (IOR) is an accepted technique with high potential. However, technology application is frequently limited by cost. Biosurfactants (surface-active molecules produced by microorganisms) are not widely utilized in the petroleum industry due to high production costs associated with use of expensive substrates and inefficient product recovery methods. The economics of biosurfactant production could be significantly impacted through use of media optimization and application of inexpensive carbon substrates such as agricultural process residuals. Utilization of biosurfactants produced from agricultural residuals may 1) result in an economic advantage for surfactant production and technology application, and 2)more » convert a substantial agricultural waste stream to a value-added product for IOR. A biosurfactant with high potential for use is surfactin, a lipopeptide biosurfactant, produced by Bacillus subtilis. Reported here is the production and potential IOR utilization of surfactin produced by Bacillus subtilis (American Type Culture Collection (ATCC) 21332) from starch-based media. Production of surfactants from microbiological growth media based on simple sugars, chemically pure starch medium, simulated liquid and solid potato-process effluent media, a commercially prepared potato starch in mineral salts, and process effluent from a potato processor is discussed. Additionally, the effect of chemical and physical pretreatments on starchy feedstocks is discussed.« less

Apparatus for entrained coal pyrolysis

DOEpatents

Durai-Swamy, Kandaswamy

1982-11-16

This invention discloses a process and apparatus for pyrolyzing particulate coal by heating with a particulate solid heating media in a transport reactor. The invention tends to dampen fluctuations in the flow of heating media upstream of the pyrolysis zone, and by so doing forms a substantially continuous and substantially uniform annular column of heating media flowing downwardly along the inside diameter of the reactor. The invention is particularly useful for bituminous or agglomerative type coals.

Localized coating removal using plastic media blasting

NASA Technical Reports Server (NTRS)

Novak, Howard L.; Wyckoff, Michael G.; Zook, Lee M.

1988-01-01

Steps taken to qualify the use of plastic media blasting for safely and effectively removing paint and other coatings from solid rocket booster aluminum structures are described. As a result of the effort, an improvement was made in the design of surface finishing equipment for processing flight hardware, in addition to a potentially patentable idea on improved plastic media composition. The general arrangement of the blast equipment and the nozzle configuration are presented.

Expanded Concepts of the School Library Media Center; Narrative Evaluation Report on the Institute for Advanced Study for Librarians...University of Washington...July 6 to July 17, 1970.

ERIC Educational Resources Information Center

Washington Univ., Seattle. School of Librarianship.

The purpose of the institute was to update school librarians in elementary and secondary schools and enable them to gain competency in the new media. The objectives of the institute were to assist the school librarian in the selection, processing and utilization of nonbook media, to learn simple techniques in production of materials, and to…

Water movement in glass bead porous media: 1. Experiments of capillary rise and hysteresis

NASA Astrophysics Data System (ADS)

Lu, T. X.; Biggar, J. W.; Nielsen, D. R.

1994-12-01

Experimental observations of capillary rise and hysteresis of water or ethanol in glass beads are presented to improve our understanding of those physical processes in porous media. The results provide evidence that capillary rise into porous media cannot be fully explained by a model of cylinders. They further demonstrate that the "Ink bottle" model does not provide an adequate explanation of hysteresis. Glass beads serving as a model for ideal soil are enclosed in a rectangular glass chamber model. A TV camera associated with a microscope was used to record the processes of capillary rise and drainage. It is clearly shown during capillary rise that the fluid exhibits a "jump" behavior at the neck of the pores in an initially dry profile or at the bottom of the water film in an initially wet profile. Under an initially dry condition, the jump initiates at the particle with smallest diameter. The jump process continues to higher elevations until at equilibrium the surface tensile force is balanced by the hydrostatic force. The wetting front at that time is readily observed as flat and saturated. Under an initially wet condition, capillary rise occurs as a water film thickening process associated with the jump process. Trapped air behind the wetting front renders the wetting front irregular and unsaturated. The capillary rise into an initially wet porous medium can be higher than that into an initially dry profile. During the drying process, large surface areas associated with the gas-liquid interface develop, allowing the porous medium to retain more water than during the wetting process at the same pressure. That mechanism explains better the hysteresis phenomenon in porous media in contrast to other mechanisms that now prevail.

20 CFR 422.114 - Annual wage reporting process.

Code of Federal Regulations, 2014 CFR

2014-04-01

... employer's magnetic media wage reports have no social security numbers or incorrect employee names or... Section 422.114 Employees' Benefits SOCIAL SECURITY ADMINISTRATION ORGANIZATION AND PROCEDURES General... media reports. Special versions of these forms for Puerto Rico, Guam, American Samoa, the Virgin Islands...

20 CFR 422.114 - Annual wage reporting process.

Code of Federal Regulations, 2013 CFR

2013-04-01

... employer's magnetic media wage reports have no social security numbers or incorrect employee names or... Section 422.114 Employees' Benefits SOCIAL SECURITY ADMINISTRATION ORGANIZATION AND PROCEDURES General... media reports. Special versions of these forms for Puerto Rico, Guam, American Samoa, the Virgin Islands...

20 CFR 422.114 - Annual wage reporting process.

Code of Federal Regulations, 2011 CFR

2011-04-01

... employer's magnetic media wage reports have no social security numbers or incorrect employee names or... Section 422.114 Employees' Benefits SOCIAL SECURITY ADMINISTRATION ORGANIZATION AND PROCEDURES General... media reports. Special versions of these forms for Puerto Rico, Guam, American Samoa, the Virgin Islands...

20 CFR 422.114 - Annual wage reporting process.

Code of Federal Regulations, 2012 CFR

2012-04-01

... employer's magnetic media wage reports have no social security numbers or incorrect employee names or... Section 422.114 Employees' Benefits SOCIAL SECURITY ADMINISTRATION ORGANIZATION AND PROCEDURES General... media reports. Special versions of these forms for Puerto Rico, Guam, American Samoa, the Virgin Islands...

Auditory Deprivation and Early Conductive Hearing Loss from Otitis Media.

ERIC Educational Resources Information Center

Gunnarson, Adele D.; And Others

1990-01-01

This article reviews auditory deprivation effects on anatomy, physiology, and behavior in animals and discusses the sequelae of otitis media with effusion (OME) in children. Focused on are central auditory processing disorders associated with early fluctuating hearing loss from OME. (DB)

20 CFR 422.114 - Annual wage reporting process.

Code of Federal Regulations, 2010 CFR

2010-04-01

... employer's magnetic media wage reports have no social security numbers or incorrect employee names or... Section 422.114 Employees' Benefits SOCIAL SECURITY ADMINISTRATION ORGANIZATION AND PROCEDURES General... media reports. Special versions of these forms for Puerto Rico, Guam, American Samoa, the Virgin Islands...

An Automation Survival Guide for Media Centers.

ERIC Educational Resources Information Center

Whaley, Roger E.

1989-01-01

Reviews factors that should affect the decision to automate a school media center and offers suggestions for the automation process. Topics discussed include getting the library collection ready for automation, deciding what automated functions are needed, evaluating software vendors, selecting software, and budgeting. (CLB)

Disposal of Regenerate Wastewater from Adsorptive Media Systems

EPA Science Inventory

Presentation summarizes the result of the processing of the wastewater produced by the onsite regeneration of the exhausted media from two full scale arsenic removal systems at Twentynine Palms, CA and Goffstown, NH. Presentation describes the use and results of ferric chloride...

28 CFR 802.8 - Expedited processing.

Code of Federal Regulations, 2010 CFR

2010-07-01

... and exceptional media interest in which there exist possible questions about the government's... “widespread and exceptional media interest” requires that the records requested pertain to a matter of current... significant recognized interest to and throughout the general public. The requester must adequately explain...

7 CFR 1.9 - Expedited processing.

Code of Federal Regulations, 2010 CFR

2010-01-01

... information. Representatives of the news media would normally qualify as individuals primarily engaged in... test of urgency, nor would a news media publication or broadcast deadline unrelated to the news... disseminated quickly. Ordinarily this means a breaking news story of general public interest. Information of...

45 CFR 1226.8 - Prohibited activities.

Code of Federal Regulations, 2010 CFR

2010-10-01

..., pamphlets, brochures and material designed for the print or electronic media; (5) Organizing political... assistance to individuals in the process of registering to vote, including determinations of eligibility; (3... material designed for either the print or electronic media, which urges recipients to contact their...

Health-related media use among youth audiences in Senegal

PubMed Central

Glik, Deborah; Massey, Philip; Gipson, Jessica; Dieng, Thierno; Rideau, Alexandre; Prelip, Michael

2016-01-01

Lower- and middle-income countries (LMICs) are experiencing rapid changes in access to and use of new internet and digital media technologies. The purpose of this study was to better understand how younger audiences are navigating traditional and newer forms of media technologies, with particular emphasis on the skills and competencies needed to obtain, evaluate and apply health-related information, also defined as health and media literacy. Sixteen focus group discussions were conducted throughout Senegal in September 2012 with youth aged 15–25. Using an iterative coding process based on grounded theory, four themes emerged related to media use for health information among Senegalese youth. They include the following: (i) media utilization; (ii) barriers and conflicts regarding media utilization; (iii) uses and gratifications and (iv) health and media literacy. Findings suggest that Senegalese youth use a heterogeneous mix of media platforms (i.e. television, radio, internet) and utilization often occurs with family members or friends. Additionally, the need for entertainment, information and connectedness inform media use, mostly concerning sexual and reproductive health information. Importantly, tensions arise as youth balance innovative and interactive technologies with traditional and conservative values, particularly concerning ethical and privacy concerns. Findings support the use of multipronged intervention approaches that leverage both new media, as well as traditional media strategies, and that also address lack of health and media literacy in this population. Implementing health-related interventions across multiple media platforms provides an opportunity to create an integrated, as opposed to a disparate, user experience. PMID:25113152

Implementation of UV-based advanced oxidation processes in algal medium recycling.

PubMed

Wang, Wenxuan; Sha, Jun; Lu, Zhiying; Shao, Senlin; Sun, Peizhe; Hu, Qiang; Zhang, Xuezhi

2018-09-01

Algae show great potential as sustainable feedstock for numerous bioproducts. However, large volume of water consumption during algal biomass production makes that the culture media recycling is a necessity due to economic and environmental concern. To avoid the negative effect of enriched organic matters in the harvested culture media, pre-treatment prior to medium replenishment and reuse is required. In this study, degradation of algenitic organic matters (AOM) in the culture media by UV-based photolysis processes (i.e., direct UV, UV/peroxydisulfate (PDS), UV/H 2 O 2 , and UV/NH 2 Cl) was explored. The results showed that UV, UV/PDS, UV/H 2 O 2 and UV/NH 2 Cl caused a decrease of SUVA for 29.9%, 35.4%, 40.45%, and 22.6%, respectively, though the organic matter was almost not mineralized. Fluorescence excitation-emission matrix combined with parallel factor analysis indicated that UV/PDS and UV/H 2 O 2 degraded 47.26%-56.31% of the fulvic-like and humic-like fractions in AOM. Powder activated carbon absorption and growth evaluation for the AOPs-treated media indicated that UV/PDS and UV/H 2 O 2 processes not only could remove the growth inhibitors in the media, but were also beneficial to the algae growth. These results suggested that UV/PDS and UV/H 2 O 2 could effectively degrade the hydrophobic components in AOM and converted the growth inhibition fraction of AOM in the recycled media into nutrient source for algal growth. Different from the general application of UV-based AOP in the wastewater treatment, this study provided an innovative idea about how to pre-treat AOM in the media recycling: utilization rather than removal, which was a more sustainable and environment-friendly technology. Copyright © 2018 Elsevier B.V. All rights reserved.

Cyberbullying and Social Media: Information and Interventions for School Nurses Working With Victims, Students, and Families.

PubMed

Byrne, Elizabeth; Vessey, Judith A; Pfeifer, Lauren

2018-02-01

Social media has become an increasingly prevalent fixture in youths' lives, with over 90% of teenagers reporting daily usage. These online sites and applications have provided many positive opportunities for youths to connect and share ideas with others; however, social media has also become a major platform for cyberbullying. Victims often experience negative health outcomes directly related to cyberbullying. For this reason, it is critical that third parties, such as school nurses, are well versed in social media and the warning signs of those being victimized by cyberbullying. Therefore, this integrative review examines school nurses' knowledge of cyberbullying and social media and identifies the implications for school nursing practice regarding prevention and intervention processes.

Shot and bead peening control

NASA Astrophysics Data System (ADS)

John, R.

The merits of the peening effect in improving the fatigue resistance of ferrous and non-ferrous media is discussed. The machines that perform the peening task are also discussed, including the rotating-wheel plant, pressure-type air-assisted peening machines, and suction systems. The peening process itself is discussed briefly, and an outline of the parameters that affect the product specification is presented. The merits of the Almen test strip as a measure of correct treatment are evaluated, and the two types of devices are discussed for monitoring the flow of peening media. The two types of feed control devices (one for ferrous media and the other for non-ferrous media) for accurately controlling the feed of peening media are also briefly examined.

Modelling the growth of porous alumina matrix for creating hyperbolic media

NASA Astrophysics Data System (ADS)

Aryslanova, E. M.; Alfimov, A. V.; Chivilikhin, S. A.

2016-08-01

Porous aluminum oxide is a regular self-assembled structure. During anodization it is possible to control nano-parameters of the structure using macroscopic parameters of anodization. Porous alumina films can be used as a template for the creation of hyperbolic media. In this work we consider the anodization process, our model takes into account the influence of layers of aluminum and electrolyte on the rate of growth of aluminum oxide, as well as the effect of surface diffusion. As a result of our model we obtain the minimum distance between centers of alumina pores in the beginning of anodizing process. We also present the results obtained by numerical modelling of hyperbolic media based on porous alumina film.

SRB Processing Facilities Media Event

NASA Image and Video Library

2016-03-01

Inside the Booster Fabrication Facility (BFF) at NASA’s Kennedy Space Center in Florida, members of the news media view the right-hand aft skirt that will be used on a solid rocket booster for NASA’s Space Launch System (SLS) rocket. Orbital ATK is contractor for NASA’s Marshall Space Flight Center in Alabama, and operates the BFF to prepare aft booster segments and hardware for the SLS solid rocket boosters. At far right, in the royal blue shirt, Rick Serfozo, Orbital ATK Florida site director, talks to the media. The SLS rocket and Orion spacecraft will launch on Exploration Mission-1 in 2018. The Ground Systems Development and Operations Program is preparing the infrastructure to process and launch spacecraft for deep-space missions and the journey to Mars.

Modelling information dissemination under privacy concerns in social media

NASA Astrophysics Data System (ADS)

Zhu, Hui; Huang, Cheng; Lu, Rongxing; Li, Hui

2016-05-01

Social media has recently become an important platform for users to share news, express views, and post messages. However, due to user privacy preservation in social media, many privacy setting tools are employed, which inevitably change the patterns and dynamics of information dissemination. In this study, a general stochastic model using dynamic evolution equations was introduced to illustrate how privacy concerns impact the process of information dissemination. Extensive simulations and analyzes involving the privacy settings of general users, privileged users, and pure observers were conducted on real-world networks, and the results demonstrated that user privacy settings affect information differently. Finally, we also studied the process of information diffusion analytically and numerically with different privacy settings using two classic networks.

Social Media Use Among Living Kidney Donors and Recipients: Survey on Current Practice and Potential

PubMed Central

2016-01-01

Background In the United States, there is a national shortage of organs donated for transplant. Among the solid organs, most often kidneys are donated by living donors, but the lack of information and complicated processes limit the number of individuals who serve as living kidney donors. Social media can be a tool for advocacy, educating the public about the need, process, and outcomes of live kidney donors, yet little is known about social media use by kidney transplant patients. Objective The purpose of this study was to examine the social media use of potential kidney transplant patients and their willingness to use social media and their networks to advocate and educate about living kidney donation. Methods Using a validated survey, we modified the instrument to apply to the patient population of interest attending the Medical University of South Carolina, Charleston, SC, USA. The questions on the survey inquired about current social media use, sites visited, frequency and duration of social media use, and willingness to use social media to share the need for living kidney donors. We asked patients who had received a transplant and those awaiting a transplant to complete the survey during an office visit. Participation was voluntary. Results A total of 199 patients completed the survey. Approximately half of all kidney transplant patients surveyed used social media (104/199, 52.3%), and approximately one-third (66/199, 33.2%) had more than 100 friends in their social media network. Facebook was the most popular site, and 51% (102/199) reported that they would be willing to post information about living kidney donation on their social networks. More than a quarter of the sample (75/199, 37.7%) had posted about their health status in the past. Conclusions Social media holds great promise for health-related education and awareness. Our study shows the current social media use of kidney transplant patients. In turn, such information can be used to design interventions to ensure appropriate decision making about live kidney donation. Transplant programs can help increase the number of living donors by providing guidance to kidney transplant patients in how to use social media, to be advocates, and to provide information about living kidney donation to their social network. PMID:27998880

Social Media Use Among Living Kidney Donors and Recipients: Survey on Current Practice and Potential.

PubMed

Kazley, Abby Swanson; Hamidi, Bashir; Balliet, Wendy; Baliga, Prabhakar

2016-12-20

In the United States, there is a national shortage of organs donated for transplant. Among the solid organs, most often kidneys are donated by living donors, but the lack of information and complicated processes limit the number of individuals who serve as living kidney donors. Social media can be a tool for advocacy, educating the public about the need, process, and outcomes of live kidney donors, yet little is known about social media use by kidney transplant patients. The purpose of this study was to examine the social media use of potential kidney transplant patients and their willingness to use social media and their networks to advocate and educate about living kidney donation. Using a validated survey, we modified the instrument to apply to the patient population of interest attending the Medical University of South Carolina, Charleston, SC, USA. The questions on the survey inquired about current social media use, sites visited, frequency and duration of social media use, and willingness to use social media to share the need for living kidney donors. We asked patients who had received a transplant and those awaiting a transplant to complete the survey during an office visit. Participation was voluntary. A total of 199 patients completed the survey. Approximately half of all kidney transplant patients surveyed used social media (104/199, 52.3%), and approximately one-third (66/199, 33.2%) had more than 100 friends in their social media network. Facebook was the most popular site, and 51% (102/199) reported that they would be willing to post information about living kidney donation on their social networks. More than a quarter of the sample (75/199, 37.7%) had posted about their health status in the past. Social media holds great promise for health-related education and awareness. Our study shows the current social media use of kidney transplant patients. In turn, such information can be used to design interventions to ensure appropriate decision making about live kidney donation. Transplant programs can help increase the number of living donors by providing guidance to kidney transplant patients in how to use social media, to be advocates, and to provide information about living kidney donation to their social network. ©Abby Swanson Kazley, Bashir Hamidi, Wendy Balliet, Prabhakar Baliga. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 20.12.2016.

Accelerating Exploitation of Low-grade Intelligence through Semantic Text Processing of Social Media

DTIC Science & Technology

2013-06-01

importance as an information source. The brevity of social media content (e.g., 140 characters per tweet) combined with the increasing usage of mobile...platform imports unstructured text from a variety of sources and then maps the text to an existing ontology of frames (FrameNet, https...framenet.icsi.berkeley.edu/fndrupal/) during a process of Semantic Role Labeling ( SRL ). FrameNet is a structured language model grounded in the theory of Frame

Process evaluation of an in-school anti-tobacco media campaign in Louisiana.

PubMed

Hong, Traci; Johnson, Carolyn C; Myers, Leann; Boris, Neil; Brewer, Dixye; Webber, Larry S

2008-01-01

In light of challenges imposed by the changing media landscape and decreasing classroom time available for health interventions, new approaches are needed to disseminate anti-tobacco messages to adolescents. This study reported process evaluation of an in-school three-year anti-tobacco media campaign conducted in 10 schools in Louisiana. Over three years, 10 schools received an in-school anti-tobacco media campaign. The media campaign was one intervention component of the Acadiana Coalition of Teens against Tobacco. Campaign measures were tracked over the campaign's three-year duration. The campaign and evaluation were designed to target the students as they progressed through high school. The number of students who completed the surveys were 1,823 in Year 1, 1,552 in Year 2, and 1,390 in Year 3. Schools eligible for participation were publicly funded schools with no magnet or special populations and within a two-hour driving distance of the New Orleans study office. In a self-report survey (Year 1, n = 1,823; Year 2, n = 1,552; Year 3, n = 1,390), more than 75% and 50% of students reported being exposed to posters and public service announcements, respectively. Recognition of campaign theme was more than 80%. Almost half of respondents reported that the posters were interesting, one-third reported that the posters prevented them from smoking, and 10% reported that the posters encouraged them to cease smoking. Stock media posters had a significantly higher affective reaction than the customized media posters. Findings suggest that in-school media programs are useful and should be considered as a viable approach to health education for adolescents.

Effects of reactive oxygen species levels in prepared culture media on embryo development: a comparison of two media.

PubMed

Shih, Ying-Fu; Lee, Tsung-Hsien; Liu, Chung-Hsien; Tsao, Hui-Mei; Huang, Chun-Chia; Lee, Maw-Sheng

2014-12-01

This study determined the correlation between the levels of reactive oxygen species (ROS) in prepared culture media and the early development of human embryos. This was an autocontrolled comparison study. A total of 159 patients undergoing in vitro fertilization/intracytoplasmic sperm injection treatment were recruited in this study. The pH values, osmolarity pressures, and ROS levels of 15 batches of two culture media were measured. Sibling oocytes or embryos from individual patients were randomly assigned to two culture groups with Quinn's Advantage Cleavage and Blastocyst media (QAC/QAB) or GIII series cleavage and blastocyst media (G1.3/G2.3). The difference between the two culture groups was analyzed using one-sample t test. The QAC/QAB and G1.3/G2.3 media exhibited similar pH values and osmolarity pressures. However, the prepared QAC/QAB media were characterized to contain lower amounts of ROS than the G1.3/G2.3 media. Furthermore, the blastocysts that developed under the QAC/QAB media were morphologically superior to those that developed under the G1.3/G2.3 media. The elevated ROS levels in culture media were associated with poor development of blastocyst-stage embryos. Measurement of ROS levels may be a valuable process for medium selection or modification. Copyright © 2014. Published by Elsevier B.V.

Web science in medicine and healthcare.

PubMed

Denecke, K; Brooks, E

2013-01-01

Medical social-media provide a new source of information within information gaining contexts. Facts, experiences, opinions or information on behaviour can be found in the medical web and could support a broad range of applications. The intention of this Focus Theme is to bring the existing research together and to show the possibilities, challenges and technologies for Web Science in medicine and healthcare. This editorial provides an overview on the landscape of medical social-media and their possibilities in supporting healthcare. Further, it summarizes the three papers included in this Focus Theme. The three papers of this Focus Theme consider different aspects of Web Science in medicine which are 1) detection of drug interactions from social media, 2) inferring community structures from online forums and 3) improving access to online videos through assignment of SNOMED CT terms. All three papers show the potential of medical social-media in supporting health information gathering processes from the web. However, several issues still need to be addressed in future: Methods are necessary for identifying high quality information from the medical web as well as for processing the language that is used by social media users to report about their symptoms, diseases and other health issues.

32 CFR 518.15 - General provisions.

Code of Federal Regulations, 2012 CFR

2012-07-01

... or media. The accused's name, grade or rank, unit, regular assigned duties, and other information as... or media may be requested from The Judge Advocate General (TJAG). Requests for information from... PUBLIC RELATIONS THE FREEDOM OF INFORMATION ACT PROGRAM Release and Processing Procedures § 518.15...

32 CFR 518.15 - General provisions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... or media. The accused's name, grade or rank, unit, regular assigned duties, and other information as... or media may be requested from The Judge Advocate General (TJAG). Requests for information from... PUBLIC RELATIONS THE FREEDOM OF INFORMATION ACT PROGRAM Release and Processing Procedures § 518.15...

32 CFR 518.15 - General provisions.

Code of Federal Regulations, 2014 CFR

2014-07-01

... or media. The accused's name, grade or rank, unit, regular assigned duties, and other information as... or media may be requested from The Judge Advocate General (TJAG). Requests for information from... PUBLIC RELATIONS THE FREEDOM OF INFORMATION ACT PROGRAM Release and Processing Procedures § 518.15...

32 CFR 518.15 - General provisions.

Code of Federal Regulations, 2011 CFR

2011-07-01

... or media. The accused's name, grade or rank, unit, regular assigned duties, and other information as... or media may be requested from The Judge Advocate General (TJAG). Requests for information from... PUBLIC RELATIONS THE FREEDOM OF INFORMATION ACT PROGRAM Release and Processing Procedures § 518.15...

Fermilab | Science

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media Tevatron experiments Tevatron operation Shutdown process For the media Video of shutdown event Guest book Quick Links Home Contact Phone Book Fermilab at Work For Industry Jobs Interact Facebook Twitter

Deconstructing Cultural Stereotypes through Media Critique.

ERIC Educational Resources Information Center

Power, Karen

Writing is an effective tool for investigating the problem of ethnic stereotyping, that is, grouping people from diverse cultures into broad unrepresentative categories. A first-year composition class addressed ethnic stereotyping using media critique. Class activities divided the process of deconstructing cultural stereotypes into three steps:…

Community Integration, Local Media Use, and Democratic Processes.

ERIC Educational Resources Information Center

McLeod, Jack M.; And Others

1996-01-01

Explicates the concept of community integration and its dimensions. Specifies structural and media antecedents and political consequences of these dimensions. Uses 15 indicators to test the hypothesis that integration is a multidimensional concept. Reveals that community integration has at least five dimensions: psychological attachment,…

32 CFR 701.8 - Processing FOIA requests.

Code of Federal Regulations, 2010 CFR

2010-07-01

... signature or a statement certifying under the penalty of perjury that their identity is true and correct.... Representatives of the news media would normally qualify as individuals primarily engaged in disseminating... or commercial activities would not qualify, nor would a news media publication or broadcast deadline...

Political Communication via the Media. ERIC Digest.

ERIC Educational Resources Information Center

Aiex, Nola Kortner; Gottlieb, Stephen S.

Noting that critics charge that news reporting focuses on the superficial, personal characteristics of candidates and ignores the issues underlying elections, this Digest examines the relationship between the political process and political communication through the media. It addresses the power of advertising, cyberspace political communication,…

Antibacterial performance of nano polypropylene filter media containing nano-TiO2 and clay particles

NASA Astrophysics Data System (ADS)

Shafiee, Sara; Zarrebini, Mohammad; Naghashzargar, Elham; Semnani, Dariush

2015-10-01

Disinfection and elimination of pathogenic microorganisms from liquid can be achieved by filtration process using antibacterial filter media. The advent of nanotechnology has facilitated the introduction of membranes consisting of nano-fiber in filtration operations. The melt electro-spun fibers due to their extremely small diameters are used in the production of this particular filtration medium. In this work, antibacterial polypropylene filter medium containing clay particles and nano-TiO2 were made using melt electro-spun technology. Antibacterial performance of polypropylene nano-filters was evaluated using E. coli bacteria. Additionally, filtration efficiency of the samples in terms fiber diameter, filter porosity, and fiber distribution using image processing technique was determined. Air permeability and dust aerosol tests were conducted to establish the suitability of the samples as a filter medium. It was concluded that as far as antibacterial property is concerned, nano-fibers filter media containing clay particles are preferential to similar media containing TiO2 nanoparticles.

KENNEDY SPACE CENTER, FLA. - NASA Vehicle Manager Scott Thurston (hands extended) talks to the media in the Orbiter Processing Facility. The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System.

NASA Image and Video Library

2003-09-26

KENNEDY SPACE CENTER, FLA. - NASA Vehicle Manager Scott Thurston (hands extended) talks to the media in the Orbiter Processing Facility. The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System.

KENNEDY SPACE CENTER, FLA. - NASA Vehicle Manager Scott Thurston (facing camera) talks to the media in the Orbiter Processing Facility. The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System.

NASA Image and Video Library

2003-09-26

KENNEDY SPACE CENTER, FLA. - NASA Vehicle Manager Scott Thurston (facing camera) talks to the media in the Orbiter Processing Facility. The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System.

KENNEDY SPACE CENTER, FLA. - NASA Vehicle Manager Scott Thurston (left) talks to a phalanx of media in the Orbiter Processing Facility. The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System.

NASA Image and Video Library

2003-09-26

KENNEDY SPACE CENTER, FLA. - NASA Vehicle Manager Scott Thurston (left) talks to a phalanx of media in the Orbiter Processing Facility. The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System.

KENNEDY SPACE CENTER, FLA. - NASA Vehicle Manager Scott Thurston (right) talks to the media in the Orbiter Processing Facility . The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System.

NASA Image and Video Library

2003-09-26

KENNEDY SPACE CENTER, FLA. - NASA Vehicle Manager Scott Thurston (right) talks to the media in the Orbiter Processing Facility . The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System.

A review of social media methods and lessons learned from the National Children's Study.

PubMed

Burke-Garcia, Amelia; Winseck, Kate; Jouvenal, Leslie Cooke; Hubble, David; Kulbicki, Kathryn M

2017-08-01

Given the reach and influence of social media, the National Children's Study Vanguard Study evaluated the feasibility, acceptability, and cost of using social media to support participant retention. We describe a social media experiment designed to assess the impact of social media on participant retention, discuss several key considerations for integrating social media into longitudinal research, and review factors that may influence engagement in research-related social media. User participation varied but was most active when at launch. During the short life of the private online community, a total of 39 participants joined. General enthusiasm about the prospect of the online community was indicated. There were many lessons learned throughout the process in areas such as privacy, security, and Institutional Review Board clearance. These are described in detail. The opportunity to engage participants in longitudinal research using online social networks is enticing; however, more research is needed to consider the feasibility of their use in an ongoing manner. Recommendations are presented for future research seeking to use social media to improve retention in longitudinal research.

Social media in public health.

PubMed

Kass-Hout, Taha A; Alhinnawi, Hend

2013-01-01

While social media interactions are currently not fully understood, as individual health behaviors and outcomes are shared online, social media offers an increasingly clear picture of the dynamics of these processes. Social media is becoming an increasingly common platform among clinicians and public health officials to share information with the public, track or predict diseases. Social media can be used for engaging the public and communicating key public health interventions, while providing an important tool for public health surveillance. Social media has advantages over traditional public health surveillance, as well as limitations, such as poor specificity, that warrant additional study. Social media can provide timely, relevant and transparent information of public health importance; such as tracking or predicting the spread or severity of influenza, west nile virus or meningitis as they propagate in the community, and, in identifying disease outbreaks or clusters of chronic illnesses. Further work is needed on social media as a valid data source for detecting or predicting diseases or conditions. Also, whether or not it is an effective tool for communicating key public health messages and engaging both, the general public and policy-makers.

Media as a “Super Peer”: How Adolescents Interpret Media Messages Predicts their Perception of Alcohol and Tobacco Use Norms

PubMed Central

Elmore, Kristen; Scull, Tracy M.; Kupersmidt, Janis B.

2016-01-01

Adolescents’ media environment offers information about who uses substances and what happens as a result—how youth interpret these messages likely determines their impact on normative beliefs about alcohol and tobacco use. The Message Interpretation Processing (MIP) theory predicts that substance use norms are influenced by cognitions associated with the interpretation of media messages. This cross-sectional study examined whether high school adolescents’ (n=817, 48% female, 64% white) media-related cognitions (i.e., similarity, realism, desirability, identification) were related to their perceptions of substance use norms. Results revealed that adolescents’ media-related cognitions explained a significant amount of variance in perceived social approval for and estimated prevalence of peer alcohol and tobacco use, above and beyond previous use and demographic covariates. Compared to prevalence norms, social approval norms were more closely related to adolescents’ media-related cognitions. Results suggest that critical thinking about media messages can inhibit normative perceptions that are likely to increase adolescents’ interest in alcohol and tobacco use. PMID:27837371

TV, Social Media, and College Students' Binge Drinking Intentions: Moderated Mediation Models.

PubMed

Yang, Bo; Zhao, Xinyan

2018-01-01

Many studies to date have examined how media influence health-related behavior through social norms. However, most studies focused on traditional media. In the era of traditional and social media integration, our study advances health and mass communication scholarship by examining the influence of both traditional and social media mediated through social norms. Also, we examined a boundary condition for the norms-mediated media influence process. Namely, in the context of college binge drinking, we predict that exposure to TV and social media prodrinking messages can influence college students' binge drinking intentions through perceived peer descriptive and injunctive norms. We also predict that group identification will moderate this indirect effect. Our moderated mediation models were tested via structural equation modeling (N = 609). We found that college students' exposure to social media prodrinking messages indirectly influenced their binge drinking intentions via perceived injunctive norms, and students' identification with their peers moderated this indirect effect. However, neither descriptive nor injunctive norms mediated the influence of students' exposure to TV prodrinking messages on their binge drinking intentions. Theoretical and practical implications of the findings are discussed.

A Framework for Enhancing Real-time Social Media Data to Improve Disaster Management Process

NASA Astrophysics Data System (ADS)

Attique Shah, Syed; Zafer Şeker, Dursun; Demirel, Hande

2018-05-01

Social Media datasets are playing a vital role to provide information that can support decision making in nearly all domains of technology. It is due to the fact that social media is a quick and economical approach for data collection from public through methods like crowdsourcing. It is already proved by existing research that in case of any disaster (natural or man-made) the information extracted from Social Media sites is very critical to Disaster Management Systems for response and reconstruction. This study comprises of two components, the first part proposes a framework that provides updated and filtered real time input data for the disaster management system through social media and the second part consists of a designed web user API for a structured and defined real time data input process. This study contributes to the discipline of design science for the information systems domain. The aim of this study is to propose a framework that can filter and organize data from the unstructured social media sources through recognized methods and to bring this retrieved data to the same level as that of taken through a structured and predefined mechanism of a web API. Both components are designed to a level such that they can potentially collaborate and produce updated information for a disaster management system to carry out accurate and effective.

[Interrelations Between Adolescent Problematic Internet Use and Parental Internet Mediation].

PubMed

Kammerl, Rudolf; Wartberg, Lutz

2018-02-01

Interrelations Between Adolescent Problematic Internet Use and Parental Internet Mediation Everyday life of adolescents and their parents is increasingly characterized by digital media usage (also referred to as "process of mediatization"). In the current study, associations between problematic Internet use of the adolescents (as a possible consequence of the process of mediatization) and parental media education were explored. For this purpose, throughout Germany 1,095 family dyads (an adolescent and a related parent) were investigated with a standardized questionnaire measuring different aspects of parental media education and adolescent problematic Internet use. We conducted two multiple linear regression analyses (dimensional approach) with adolescent problematic Internet use based on self-ratings (model 1, corrected R 2 = 0.18) and parental assessment (model 2, corrected R 2 = 0.24) as response variables. Consistently for self- and parental ratings, adolescent problematic Internet use was statistically significant related to male gender (of the adolescent), a more frequent inconsistent media education (adolescents' and parents' perspective) and a stronger monitoring (parents' perspective). Additionally, we observed associations between the parental rating of adolescent problematic Internet use and a less frequent active and restrictive Internet Mediation (parents' perspective). The findings of the present study show the importance of parental media education for problematic Internet use in adolescence and especially, the role of inconsistent media education should be investigated again in further studies.

Distribution of AAV8 particles in cell lysates and culture media changes with time and is dependent on the recombinant vector

PubMed Central

Piras, Bryan A; Drury, Jason E; Morton, Christopher L; Spence, Yunyu; Lockey, Timothy D; Nathwani, Amit C; Davidoff, Andrew M; Meagher, Michael M

2016-01-01

With clinical trials ongoing, efficient clinical production of adeno-associated virus (AAV) to treat large numbers of patients remains a challenge. We compared distribution of AAV8 packaged with Factor VIII (FVIII) in cell culture media and lysates on days 3, 5, 6, and 7 post-transfection and found increasing viral production through day 6, with the proportion of viral particles in the media increasing from 76% at day 3 to 94% by day 7. Compared to FVIII, AAV8 packaged with Factor IX and Protective Protein/Cathepsin A vectors demonstrated a greater shift from lysate towards media from day 3 to 6, implying that particle distribution is dependent on recombinant vector. Larger-scale productions showed that the ratio of full-to-empty AAV particles is similar in media and lysate, and that AAV harvested on day 6 post-transfection provides equivalent function in mice compared to AAV harvested on day 3. This demonstrates that AAV8 production can be optimized by prolonging the duration of culture post-transfection, and simplified by allowing harvest of media only, with disposal of cells that contain 10% or less of total vector yield. Additionally, the difference in particle distribution with different expression cassettes implies a recombinant vector-dependent processing mechanism which should be taken into account during process development. PMID:27069949

Fifth anniversary of the first element of the International Spac

NASA Image and Video Library

2003-12-03

In the Space Station Processing Facility, (from left) David Bethay, Boeing/ISS Florida Operations; Charlie Precourt, deputy manager of the International Space Station Program; and Tip Talone, director of Space Station and Payload Processing, give an overview of Space Station processing for the media. Members of the media were invited to commemorate the fifth anniversary of the launch of the first element of the International Space Station by touring the Space Station Processing Facility (SSPF) at KSC. Reporters also had the opportunity to see Space Station hardware that is being processed for deployment once the Space Shuttles return to flight. The facility tour also included an opportunity for reporters to talk with NASA and Boeing mission managers about the various hardware elements currently being processed for flight.

[Efficacy of high-resolution CT in differential diagnosis of chronic suppurative otitis media and cholesteatoma otitis media by soft-tissue shadows].

PubMed

Sun, Xiao-wei; Zhang, Jian-ji; Ding, Yuan-ping; Dou, Fen-fen; Zhang, Han-bing; Gong, Ke-bo; Xu, An-ting

2011-05-01

To evalute the efficacy of high-resolution CT(HRCT) in differential diagnosis and treatment of chronic suppurative otitis media and cholesteatoma otitis media by soft-tissue shadows. HRCT scanning was performed in 120 cases, 153 ears, with chronic otitis suppurative media and cholesteatoma otitis media, of which original data were processed with multi-planar reconstruction (MPR) and maximum intensity projection (MIP), the characteristics of the soft-tissue shadows' growth, window width or window leveling and bony destruction were respectively observed, as well as compared with the surgery findings. In 120 patients (153 ears), 109 ears were diagnosed as cholesteatoma otitis media, and 44 ears were diagnosed as chronic suppurative otitis media, among which 33 ears had granulation tissue and 11 ears had secretion. One hundred and seven ears were postoperatively diagnosed as cholesteatoma otitis media, among which 25 ears had granulation tissue. Among 46 ears of chronic suppurative otitis media, 35 ears had granulation tissue, and only 11 ears had secretion. A 98.6% diagnostic accuracy can be reached with HRCT in diagnosing cholesteatoma otitis media and chronic suppurative otitis media. The Youden's index was 0.98, 0.98 and 1.00 respectively with HRCT in diagnosing cholesteatoma, granulation tissue and secretion. Combination of the three different imaging methods, axial images, coronal MPR images and MIP images, can improve the efficacy of the HRCT diagnosis and definite chronic otitis media, which can be routinely used for surgery plan.

The Decision to Access Patient Information from a Social Media Site: What Would You Do?

PubMed Central

Jent, Jason F.; Eaton, Cyd K.; Merrick, Melissa T.; Englebert, Nicole E.; Dandes, Susan K.; Chapman, Ana V.; Hershorin, Eugene R.

2011-01-01

Purpose The current study examined the prevalence with which healthcare providers use a social media site account (e.g., Facebook), the extent to which they utilize social media sites in clinical practice, and their decision-making process after accessing patient information from a social media site. Methods Pediatric faculty and trainees from a medical school campus were provided a social media site history form and seven fictional social media site adolescent profile vignettes that depicted concerning information. Participants were instructed to rate their personal use and beliefs about social media sites and to report how they would respond if they obtained concerning information about an adolescent patient from their public social media site profile. Results Healthcare providers generally believed it not to be an invasion of privacy to conduct an Internet/social media site search of someone they know. A small percentage of trainees reported a personal history of conducting an Internet search (18%) or a social media site search (14%) for a patient. However, no faculty endorsed a history of conducting searches for patients. Faculty and trainees also differed in how they would respond to concerning social media site adolescent profile information. Conclusions The findings that trainees are conducting Internet/social media site searches of patients and that faculty and trainees differ in how they would respond to concerning profile information suggest the need for specific guidelines regarding the role of social media sites in clinical practice. Practice, policy, and training implications are discussed. PMID:21939873

Social media processes in disasters: Implications of emergent technology use.

PubMed

Murthy, Dhiraj; Gross, Alexander J

2017-03-01

This article seeks to extend social science scholarship on social media technology use during disruptive events. Though social media's role in times of crisis has been previously studied, much of this work tends to focus on first-responders and relief organizations. However, social media use during disasters tends to be decentralized and this organizational structure can promote different types of messages to top-down information systems. Using 142,786 geo-tagged tweets collected before and after Hurricane Sandy's US landfall as a case study, this article seeks to explore shifts in social media behavior during disruptive events and highlights that though Sandy disrupted routine life within Twitter, users responded to the disaster by employing humor, sharing photos, and checking into locations. We conclude that social media use during disruptive events is complex and understanding these nuanced behaviors is important across the social sciences. Copyright © 2016 Elsevier Inc. All rights reserved.

Eosinophilic Mucin Otomastoiditis and Otopolyposis: A Progressive Form of Eosinophilic Otitis Media.

PubMed

Azadarmaki, Roya; Westra, William; Prasad, Sanjay

2015-09-01

The purpose of this study is to introduce and define a disease entity on a continuum of eosinophilic otitis media: eosinophilic mucin otomastoiditis and otopolyposis. A case of a 66-year-old woman with complicated chronic otitis media is reported. A literature review of the National Library of Medicine's online database, with a focus on eosinophilic otitis media and eosinophilic mucin rhinosinusitis, was performed. The authors report the case of a 66-year-old woman with a history of asthma, chronic rhinosinusitis, nasal polyposis, and chronic otitis media who presented with allergic middle ear mucin and otic polyps. Treatment involved a tympanomastoidectomy with removal of otic polyps and steroid therapy. Eosinophilic mucin otomastoiditis with otopolyposis is a disease entity on a continuum of eosinophilic otitis media. This disease process shares similarities with eosinophilic mucin rhinosinusitis. Otic polypectomy and steroids are suggested therapeutic measures. © The Author(s) 2015.

Information dissemination model for social media with constant updates

NASA Astrophysics Data System (ADS)

Zhu, Hui; Wu, Heng; Cao, Jin; Fu, Gang; Li, Hui

2018-07-01

With the development of social media tools and the pervasiveness of smart terminals, social media has become a significant source of information for many individuals. However, false information can spread rapidly, which may result in negative social impacts and serious economic losses. Thus, reducing the unfavorable effects of false information has become an urgent challenge. In this paper, a new competitive model called DMCU is proposed to describe the dissemination of information with constant updates in social media. In the model, we focus on the competitive relationship between the original false information and updated information, and then propose the priority of related information. To more effectively evaluate the effectiveness of the proposed model, data sets containing actual social media activity are utilized in experiments. Simulation results demonstrate that the DMCU model can precisely describe the process of information dissemination with constant updates, and that it can be used to forecast information dissemination trends on social media.

Filter Media Tests Under Simulated Martian Atmospheric Conditions

NASA Technical Reports Server (NTRS)

Agui, Juan H.

2016-01-01

Human exploration of Mars will require the optimal utilization of planetary resources. One of its abundant resources is the Martian atmosphere that can be harvested through filtration and chemical processes that purify and separate it into its gaseous and elemental constituents. Effective filtration needs to be part of the suite of resource utilization technologies. A unique testing platform is being used which provides the relevant operational and instrumental capabilities to test articles under the proper simulated Martian conditions. A series of tests were conducted to assess the performance of filter media. Light sheet imaging of the particle flow provided a means of detecting and quantifying particle concentrations to determine capturing efficiencies. The media's efficiency was also evaluated by gravimetric means through a by-layer filter media configuration. These tests will help to establish techniques and methods for measuring capturing efficiency and arrestance of conventional fibrous filter media. This paper will describe initial test results on different filter media.

Use of contrast media in computed tomography and magnetic resonance imaging in horses: Techniques, adverse events and opportunities.

PubMed

Nelson, B B; Goodrich, L R; Barrett, M F; Grinstaff, M W; Kawcak, C E

2017-07-01

The use of contrast media in computed tomography (CT) and magnetic resonance imaging (MRI) is increasing in horses. These contrast-enhanced imaging techniques provide improved tissue delineation and evaluation, thereby expanding diagnostic capabilities. While generally considered safe, not all contrast media exhibit the same safety profiles. The safety of contrast media use and descriptions of adverse events occurring in horses are sparsely reported. This review summarises the reported evidence of contrast media use and adverse events that occur in horses, with added contribution from other veterinary species and studies in man for comparison. This comprehensive data set empowers equine clinicians to develop use and monitoring strategies when working with contrast media. Finally, it summarises the current state-of-the-art and highlights the potential applications of contrast-enhanced CT and MRI for assessment of diseased or injured equine tissues, as well as (patho)physiological processes. © 2017 EVJ Ltd.

Modeling and Simulation of High Dimensional Stochastic Multiscale PDE Systems at the Exascale

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

Kevrekidis, Ioannis

2017-03-22

The thrust of the proposal was to exploit modern data-mining tools in a way that will create a systematic, computer-assisted approach to the representation of random media -- and also to the representation of the solutions of an array of important physicochemical processes that take place in/on such media. A parsimonious representation/parametrization of the random media links directly (via uncertainty quantification tools) to good sampling of the distribution of random media realizations. It also links directly to modern multiscale computational algorithms (like the equation-free approach that has been developed in our group) and plays a crucial role in accelerating themore » scientific computation of solutions of nonlinear PDE models (deterministic or stochastic) in such media – both solutions in particular realizations of the random media, and estimation of the statistics of the solutions over multiple realizations (e.g. expectations).« less

"Othering" agricultural biotechnology: Slovenian media representation of agricultural biotechnology.

PubMed

Zajc, Jožica; Erjavec, Karmen

2014-08-01

While studies on media representations of agricultural biotechnology mostly analyse media texts, this work is intended to fill a research gap with an analysis of journalistic interpretations of media representations. The purpose of this project was to determine how news media represent agricultural biotechnology and how journalists interpret their own representations. A content and critical discourse analysis of news texts published in the Slovenian media over two years and in-depth interviews with their authors were conducted. News texts results suggest that most of the news posts were "othering" biotechnology and biotechnologists: biotechnology as a science and individual scientists are represented as "they," who are socially irresponsible, ignorant, arrogant, and "our" enemies who produce unnatural processes and work for biotechnology companies, whose greed is destroying people, animals, and the environment. Most journalists consider these representations to be objective because they have published the biotechnologists' opinions, despite their own negative attitudes towards biotechnology.

Treating cell culture media with UV irradiation against adventitious agents: minimal impact on CHO performance.

PubMed

Yen, Sandi; Sokolenko, Stanislav; Manocha, Bhavik; Blondeel, Eric J M; Aucoin, Marc G; Patras, Ankit; Daynouri-Pancino, Farnaz; Sasges, Michael

2014-01-01

Sterility of cell culture media is an important concern in biotherapeutic processing. In large scale biotherapeutic production, a unit contamination of cell culture media can have costly effects. Ultraviolet (UV) irradiation is a sterilization method effective against bacteria and viruses while being non-thermal and non-adulterating in its mechanism of action. This makes UV irradiation attractive for use in sterilization of cell culture media. The objective of this study was to evaluate the effect of UV irradiation of cell culture media in terms of chemical composition and the ability to grow cell cultures in the treated media. The results showed that UV irradiation of commercial cell culture media at relevant disinfection doses impacted the chemical composition of the media with respect to several carboxylic acids, and to a minimal extent, amino acids. The cumulative effect of these changes, however, did not negatively influence the ability to culture Chinese Hamster Ovary cells, as evaluated by cell viability, growth rate, and protein titer measurements in simple batch growth compared with the same cells cultured in control media exposed to visible light. © 2014 The Authors. Published by Wiley Periodicals, Inc. on behalf of American Institute of Chemical Engineers.

Diffusion Dominant Solute Transport Modelling in Fractured Media Under Deep Geological Environment - 12211

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

Kwong, S.; Jivkov, A.P.

2012-07-01

Deep geologic disposal of high activity and long-lived radioactive waste is gaining increasing support in many countries, where suitable low permeability geological formation in combination with engineered barriers are used to provide long term waste contaminant and minimise the impacts to the environment and risk to the biosphere. This modelling study examines the solute transport in fractured media under low flow velocities that are relevant to a deep geological environment. In particular, reactive solute transport through fractured media is studied using a 2-D model, that considers advection and diffusion, to explore the coupled effects of kinetic and equilibrium chemical processes.more » The effects of water velocity in the fracture, matrix porosity and diffusion on solute transport are investigated and discussed. Some illustrative modelled results are presented to demonstrate the use of the model to examine the effects of media degradation on solute transport, under the influences of hydrogeological (diffusion dominant) and microbially mediated chemical processes. The challenges facing the prediction of long term degradation such as cracks evolution, interaction and coalescence are highlighted. The potential of a novel microstructure informed modelling approach to account for these effects is discussed, particularly with respect to investigating multiple phenomena impact on material performance. The GRM code is used to examine the effects of media degradation for a geological waste disposal package, under the combined hydrogeological (diffusion dominant) and chemical effects in low groundwater flow conditions that are typical of deep geological disposal systems. An illustrative reactive transport modelling application demonstrates the use of the code to examine the interplay of kinetic controlled biogeochemical reactive processes with advective and diffusive transport, under the influence of media degradation. The initial model results are encouraging which show the disposal system to evolve in a physically realistic manner. In the example presented the reactive-transport coupling develops chemically reducing zones, which limit the transport of uranium. This illustrates the potential significance of media degradation and chemical effect on the transport of radionuclides which would need to be taken into account when examining the long-term behaviour and containment properties of the geological disposal system. Microstructure-informed modelling and its potential linkage with continuum flow modelling is a subject of ongoing studies. The approach of microstructure-informed modelling is discussed to provide insight and a mechanistic understanding of macroscopic parameters and their evolution. The proposed theoretical and methodological basis for microstructure-informed modelling of porous quasi-brittle media has the potential to develop into an explanatory and predictive tool for deriving mechanism-based, as opposed to phenomenological, evolution laws for macroscopic properties. These concepts in micro-scale modelling are likely to be applicable to the diffusion process, in addition to advective transport illustrated here for porous media. (authors)« less

Teaming to Teach the Information Problem-Solving Process.

ERIC Educational Resources Information Center

Sine, Lynn; Murphy, Becky

1992-01-01

Explains a problem-solving format developed by a school media specialist and first grade teacher that used the framework of Eisenberg and Berkowitz's "Big Six Skills" for library media programs. The application of the format to a science unit on the senses is described. (two references) (MES)

5 CFR 2604.103 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... records will be put. When a request is from a representative of the news media, a purpose or use... expenditures actually incurred in searching for and duplicating (and, in the case of commercial use requesters... machines or audiovisual processing materials. Representative of the news media means a person actively...

Fermilab | Contact Fermilab

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media Tevatron experiments Tevatron operation Shutdown process For the media Video of shutdown event Guest book Cookies Quick Links Home Contact Phone Book Fermilab at Work For Industry Jobs Interact Facebook Twitter

Fermilab | About Fermilab

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media Tevatron experiments Tevatron operation Shutdown process For the media Video of shutdown event Guest book Links Home Contact Phone Book Fermilab at Work For Industry Jobs Interact Facebook Twitter Instagram

Merchants of Death: Media Violence and American Empire.

ERIC Educational Resources Information Center

Trend, David

2003-01-01

Research has done little to advance understanding of who accesses the violent imagery in popular culture. The narrow perspective provided by mass-produced media violence must be broadened by critical viewpoints that provide information people need to participate in the democratic process. (Contains 85 reference notes.) (SK)

Technology Performance Review: Selecting And Using Solidification/Stabilization Treatment For Site Remediation

EPA Science Inventory

Solidification/Stabilization (S/S) is a widely used treatment technology to prevent migration and exposure of contaminants from a contaminated media (i.e., soil, sludge and sediment). Solidification refers to a process that binds a contaminated media with a reagent changing its ...

A Content Analysis of Educational Media about Menstruation.

ERIC Educational Resources Information Center

Havens, Beverly; Swenson, Ingrid

1989-01-01

Reviewed 31 audiovisual media for content related to physical and psychological aspects of menstruation; portrayal of adolescent girls, parents, and peers; and relationship of menstruation to developmental process. In general, variations in physical and emotional responses were described as normal. In all cases, fear and embarrassment were…

Antibiotic profiles of bacteria isolated on selective campylobacter media

USDA-ARS?s Scientific Manuscript database

The objective of this study was to determine antibiotic profiles of non-Campylobacter bacteria recovered on selective Campylobacter media. Broiler carcasses were obtained from a processing facility, and whole-carcass rinses were performed by shaking carcasses in plastic bags with 200 mL of distilled...

"GREENER" CHEMICAL SYNTHETIC PROCESSES USING ENZYMATIC, MECHANOCHEMICAL MIXING, OR MICROWAVE AND ULTRASOUND IRRADIATION

EPA Science Inventory

Several newer strategies, such as solvent-free (dry media), solid-supported with and without microwave (MW) irradiation, and mechanochemical mixing (grinding); and the use of room temperature ionic liquids, supercritical carbon dioxide, and water as reaction media that can be com...

Hysteresis of Colloid Retention and Release in Saturated Porous Media During Transients in Solution Chemistry

USDA-ARS?s Scientific Manuscript database

Saturated packed column and micromodel transport studies wereconducted to gain insightonmechanismsof colloid retention and release under unfavorable attachment conditions. The initial deposition of colloids in porous media was found to be a strongly coupled process that depended on solution chemistr...

Processes of Mass Communication.

ERIC Educational Resources Information Center

Channey, David

This sociological treatment of mass communications analysis first discusses the theories of audience behavior, then turns to the organization of media production, and closes with a study of performance. The book covers audience needs and gratifications, the history of British press and broadcasting results of systems of media distribution, the…

Care and Handling of Computer Magnetic Storage Media.

ERIC Educational Resources Information Center

Geller, Sidney B.

Intended for use by data processing installation managers, operating personnel, and technical staff, this publication provides a comprehensive set of care and handling guidelines for the physical/chemical preservation of computer magnetic storage media--principally computer magnetic tapes--and their stored data. Emphasis is placed on media…

Bio-media Citizenship and Chronic Kidney Disease of Unknown Etiology in Sri Lanka.

PubMed

de Silva, M W Amarasiri

2018-04-01

In this article, I examine the crucial role of the biomedical industry, epidemiological and biomedical research, and the media in forming attitudes to and the understanding of chronic kidney disease of unknown etiology (CKDu) in Sri Lanka. Local conceptions of CKDu have been shaped by the circulation in the media of epidemiological research findings pertaining to the disease, biomedical interventions in the management of the disease in hospitals and clinics, community programs involving mass blood surveys and the testing of well water, and local food and health education programs carried out through village health committees. This process of circulation I identify as bio-media citizenship.

The Use of Media as a Sleep Aid in Adults.

PubMed

Exelmans, Liese; Van den Bulck, Jan

2016-01-01

A sample of 844 adults, aged 18-94 years old, was queried about media habits and sleep behavior in face-to-face interviews with standardized questionnaires. A substantial proportion of this sample reported using books (39.8%), television (31.2%), music (26.0%), Internet (23.2%), and videogames (10.3%) as a sleep aid. The use of media as sleep aids was associated with increased fatigue and higher scores on the Pittsburgh Sleep Quality Index (PSQI), indicating poorer sleep quality. There was no relationship with sleep duration. Finally, results suggest that media use coincides with later bedtimes, but also later rise times, a process called time shifting.

Stability of pseudorabies virus during freeze-drying and storage: effect of suspending media.

PubMed Central

Scott, E M; Woodside, W

1976-01-01

The effect of suspending media on the stability of pseudorabies virus upon freeze-drying and subsequent storage was studied. A variety of media was tested, including: sodium glutamate; sucrose; lactose; lactalbumin hydrolysate; peptone; a combination of sucrose, dextran, and glutamate; and various combinations of sucrose, glutamate, and potassium phosphates. Suspending media containing glutamate, either alone or in combination with sucrose and either dextran or phosphates, afforded the greatest degree of protection during the freeze-drying process and upon storage. Some possible functions of these additives in preventing injury to the virus during freezing and drying have been suggested. PMID:182713

Media multitasking and behavioral measures of sustained attention.

PubMed

Ralph, Brandon C W; Thomson, David R; Seli, Paul; Carriere, Jonathan S A; Smilek, Daniel

2015-02-01

In a series of four studies, self-reported media multitasking (using the media multitasking index; MMI) and general sustained-attention ability, through performance on three sustained-attention tasks: the metronome response task (MRT), the sustained-attention-to-response task (SART), and a vigilance task (here, a modified version of the SART). In Study 1, we found that higher reports of media multitasking were associated with increased response variability (i.e., poor performance) on the MRT. However, in Study 2, no association between reported media multitasking and performance on the SART was observed. These findings were replicated in Studies 3a and 3b, in which we again assessed the relation between media multitasking and performance on both the MRT and SART in two large online samples. Finally, in Study 4, using a large online sample, we tested whether media multitasking was associated with performance on a vigilance task. Although standard vigilance decrements were observed in both sensitivity (A') and response times, media multitasking was not associated with the size of these decrements, nor was media multitasking associated with overall performance, in terms of either sensitivity or response times. Taken together, the results of the studies reported here failed to demonstrate a relation between habitual engagement in media multitasking in everyday life and a general deficit in sustained-attention processes.

Higher Media Multi-Tasking Activity Is Associated with Smaller Gray-Matter Density in the Anterior Cingulate Cortex

PubMed Central

Loh, Kep Kee; Kanai, Ryota

2014-01-01

Media multitasking, or the concurrent consumption of multiple media forms, is increasingly prevalent in today’s society and has been associated with negative psychosocial and cognitive impacts. Individuals who engage in heavier media-multitasking are found to perform worse on cognitive control tasks and exhibit more socio-emotional difficulties. However, the neural processes associated with media multi-tasking remain unexplored. The present study investigated relationships between media multitasking activity and brain structure. Research has demonstrated that brain structure can be altered upon prolonged exposure to novel environments and experience. Thus, we expected differential engagements in media multitasking to correlate with brain structure variability. This was confirmed via Voxel-Based Morphometry (VBM) analyses: Individuals with higher Media Multitasking Index (MMI) scores had smaller gray matter density in the anterior cingulate cortex (ACC). Functional connectivity between this ACC region and the precuneus was negatively associated with MMI. Our findings suggest a possible structural correlate for the observed decreased cognitive control performance and socio-emotional regulation in heavy media-multitaskers. While the cross-sectional nature of our study does not allow us to specify the direction of causality, our results brought to light novel associations between individual media multitasking behaviors and ACC structure differences. PMID:25250778

Potential Alternatives Report for Validation of Alternative Low-Emission Surface PreparationlDepainting Technologies for Structural Steel

NASA Technical Reports Server (NTRS)

Lewis, Pattie

2006-01-01

For this project, particulates and solvents used during the depainting process of steel structures were the identified hazardous material (HazMat) targeted for elimination or reduction. This Potential Alternatives Report (PAR) provides technical analyses of identified alternatives to the current coating removal processes, criteria used to select alternatives for further analysis, and a list of those alternatives recommended for testing. The initial coating removal alternatives list was compiled using literature searches and center participant recommendations. The involved project participants initially considered fifteen (15) alternatives. In late 2004, stakeholders down-selected the list and identified specific processes as potential alternatives to the current depainting methods. The selected alternatives were: 1. Plastic Blast Media 2. Hard Abrasive Media 3. Sponge Blast Media 4. Mechanical Removal with Vacuum Attachment 5. Liquid Nitrogen 6. Laser Coating Removal Available information about these processes was used to analyze the technical merits and the potential environmental, safety, and occupational health (ESOH) impacts of these methods. A preliminary cost benefit analysis will be performed to determine if implementation of alternative technologies is economically justified. NASA AP2

Pink slimed: Media framing of novel food technologies and risk related to ground beef and processed foods in the U.S.

PubMed

Runge, Kristin K; Chung, Jennifer H; Su, Leona Yi-Fan; Brossard, Dominique; Scheufele, Dietram A

2018-09-01

In March 2012 ABC World News Report aired a series of reports on lean finely textured beef (LFTB) that resulted in a 10-year low for beef prices and the bankruptcy of a major firm that produced LFTB. Using a random sample survey, we tested the effects of the media frame "pink slime" and industry frame "lean finely textured beef," alongside media use, food-related knowledge, trust in food-related institutions and preference for local, fresh, organic and GMO-free foods on perceptions of risk related to ground beef containing pink slime/LFTB, processed foods and red meat. The "pink slime" frame was strongly and positively associated with risk related to ground beef, but not risk related to red meat or processed foods. Attention to news stories about pink slime/LFTB was strongly associated with risk related to ground beef and processed foods, but not red meat. We found varying effects of food values, knowledge and trust on all three dependent variables. Implications are discussed. Copyright © 2018 Elsevier Ltd. All rights reserved.

Color features as an approach for the automated screening of Salmonella strain

NASA Astrophysics Data System (ADS)

Trujillo, Alejandra Serrano; González, Viridiana Contreras; Andrade Rincón, Saulo E.; Palafox, Luis E.

2016-11-01

We present the implementation of a feature extraction approach for the automated screening of Salmonella sp., a task visually carried out by a microbiologist, where the resulting color characteristics of the culture media plate indicate the presence of this strain. The screening of Salmonella sp. is based on the inoculation and incubation of a sample on an agar plate, allowing the isolation of this strain, if present. This process uses three media: Xylose lysine deoxycholate, Salmonella Shigella, and Brilliant Green agar plates, which exhibit specific color characteristics over the colonies and over the surrounding medium for a presumed positive interpretation. Under a controlled illumination environment, images of plates are captured and the characteristics found over each agar are processed separately. Each agar is analyzed using statistical descriptors for texture, to determine the presence of colonies, followed by the extraction of color features. A comparison among the color features seen over the three media, according to the FDA Bacteriological Analytical Manual, determines the presence of Salmonella sp. on a given sample. The implemented process proves that the task addressed can be accomplished under an image processing approach, leading to the future validation and automation of additional screening processes.

Health-related media use among youth audiences in Senegal.

PubMed

Glik, Deborah; Massey, Philip; Gipson, Jessica; Dieng, Thierno; Rideau, Alexandre; Prelip, Michael

2016-03-01

Lower- and middle-income countries (LMICs) are experiencing rapid changes in access to and use of new internet and digital media technologies. The purpose of this study was to better understand how younger audiences are navigating traditional and newer forms of media technologies, with particular emphasis on the skills and competencies needed to obtain, evaluate and apply health-related information, also defined as health and media literacy. Sixteen focus group discussions were conducted throughout Senegal in September 2012 with youth aged 15-25. Using an iterative coding process based on grounded theory, four themes emerged related to media use for health information among Senegalese youth. They include the following: (i) media utilization; (ii) barriers and conflicts regarding media utilization; (iii) uses and gratifications and (iv) health and media literacy. Findings suggest that Senegalese youth use a heterogeneous mix of media platforms (i.e. television, radio, internet) and utilization often occurs with family members or friends. Additionally, the need for entertainment, information and connectedness inform media use, mostly concerning sexual and reproductive health information. Importantly, tensions arise as youth balance innovative and interactive technologies with traditional and conservative values, particularly concerning ethical and privacy concerns. Findings support the use of multipronged intervention approaches that leverage both new media, as well as traditional media strategies, and that also address lack of health and media literacy in this population. Implementing health-related interventions across multiple media platforms provides an opportunity to create an integrated, as opposed to a disparate, user experience. © The Author 2014. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

Scaling of Counter-Current Imbibition Process in Low-Permeability Porous Media, TR-121

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

Kvoscek, A.R.; Zhou, D.; Jia, L.

2001-01-17

This project presents the recent work on imaging imbibition in low permeability porous media (diatomite) with X-ray completed tomography. The viscosity ratio between nonwetting and wetting fluids is varied over several orders of magnitude yielding different levels of imbibition performance. Also performed is mathematical analysis of counter-current imbibition processes and development of a modified scaling group incorporating the mobility ratio. This modified group is physically based and appears to improve scaling accuracy of countercurrent imbibition significantly.

Perspectives on Porous Media MR in Clinical MRI

NASA Astrophysics Data System (ADS)

Sigmund, E. E.

2011-03-01

Many goals and challenges of research in natural or synthetic porous media are mirrored in quantitative medical MRI. This review will describe examples where MR techniques used in porous media (particularly diffusion-weighted imaging (DWI)) are applied to physiological pathologies. Tissue microstructure is one area with great overlap with porous media science. Diffusion-weighting (esp. in neurological tissue) has motivated models with explicit physical dimensions, statistical parameters, empirical descriptors, or hybrids thereof. Another clinically relevant microscopic process is active flow. Renal (kidney) tissue possesses significant active vascular / tubular transport that manifests as "pseudodiffusion." Cancerous lesions involve anomalies in both structure and flow. The tools of magnetic resonance and their interpretation in porous media has had great impact on clinical MRI, and continued cross-fertilization of ideas can only enhance the progress of both fields.

Medical Students and Staff Physicians: The Question of Social Media.

PubMed

Noller, Michael; Mai, Johnny P; Zapanta, Philip E; Camacho, Macario

2017-07-01

Social media's prevalence among the professional world is rapidly increasing. Its use among medical personnel-specifically, medical students, resident physicians, and staff physicians-could compromise personal-professional boundaries. Could the acceptance or lack of acceptance of a friend request bias the medical student application process? If friend requests are accepted, then medical students, resident physicians, and staff physicians are provided access to very personal aspects of one another's lives, which may not have been the intent. The question remains whether the separation of one's personal life from work is necessary. Should medical students restrict social media relationships with residents and staff physicians to professional social media networks? The suitability and opportunities of social media among medical professionals is an ongoing issue for research that needs continued evaluation.

Optimization Recovery of Yttrium Oxide in Precipitation, Extraction, and Stripping Process

NASA Astrophysics Data System (ADS)

Perwira, N. I.; Basuki, K. T.; Biyantoro, D.; Effendy, N.

2018-04-01

Yttrium oxide can be used as a dopant control rod of nuclear reactors in YSH material and superconductors. Yttrium oxide is obtained in the Xenotime mineral derived from byproduct of tin mining PT Timah Bangka which contain rare earth elements (REE) dominant Y, Dy, and Gd whose content respectively about 29.53%, 7.76%, and 2.58%. Both usage in the field of nuclear and non-nuclear science and technology is need to pure from the impurities. The presence of impurities in the yttrium oxide may affect the characteristic of the material and the efficiency of its use. Thus it needs to be separated by precipitation and extraction-stripping and calcination in the making of the oxide. However, to obtain higher levels of Yttrium oxide, it is necessary to determine the optimum conditions for its separation. The purpose of this research was to determine the optimum pH of precipitation, determine acid media and concentration optimum in extraction and stripping process and determine the efficiency of the separation of Y from REE concentrate. This research was conducted with pH variation in the precipitation process that pHs were 4 - 8, the difference of acid media for the extraction process, i.e., HNO3, HCl and H2SO4 with each concentration of 0,5 M; 1 M; 1,5 M; and 2 M and for stripping process were HNO3, HCl, and H2SO4 with each concentration of 1 M; 2M; and 3 M. Based on the result, the optimum pH of precipitation process was 6,5, the optimumacid media was HNO3 0,5 M, and for stripping process media was HNO3 3 M. The efficiency of precipitation process at pH 6,5 was 69,53 %, extraction process was 96.39% and stripping process was 4,50%. The separation process from precipitation to extraction had increased the purity and the highest efficiency recovery of Y was in the extraction process and obtained Y2O3 purer compared to the feed with the Y2O3 content of 92.87%.

Modeling the Impact of Deformation on Unstable Miscible Displacements in Porous Media

NASA Astrophysics Data System (ADS)

Santillán, D.; Cueto-Felgueroso, L.

2014-12-01

Coupled flow and geomechanics is a critical research challenge in engineering and the geosciences. The simultaneous flow of two or more fluids with different densities or viscosities through deformable media is ubiquitous in environmental, industrial, and biological processes, including the removal of non-aqueous phase liquids from underground water bodies, the geological storage of CO2, and current challenges in energy technologies, such as enhanced geothermal systems, unconventional hydrocarbon resources or enhanced oil recovery techniques. Using numerical simulation, we study the interplay between viscous-driven flow instabilities (viscous fingering) and rock mechanics, and elucidate the structure of the displacement patterns as a function of viscosity contrast, injection rate and rock mechanical properties. Finally, we discuss the role of medium deformation on transport and mixing processes in porous media.

Textile Visual Materials: Appropriate Technology in Action.

ERIC Educational Resources Information Center

Donoghue, Beverly Emerson

An innovative educational medium--screenprinted visual aids on cloth--is one alternative to conventional media in Africa, where visual materials are important communication tools but conventional media and materials are often scarce. A production process for cloth visual aids was developed and evaluated in Ghana and Sudan through the…

Challenging Popular Media's Control by Teaching Critical Viewing.

ERIC Educational Resources Information Center

Couch, Richard A.

The purpose of this paper is to express the importance of visual/media literacy and the teaching of critical television viewing. An awareness of the properties and characteristics of television--including camera angles and placement, editing, and emotionally involving subject matter--aids viewers in the critical viewing process. The knowledge of…

The New Media and Informal Learning

ERIC Educational Resources Information Center

Matijevic, Milan

2011-01-01

At the end of the last millennium, schools received strong competition from the Internet, multimedia and other developed electronic media thanks to the new possibilities for gathering, processing, searching for and sending information. Furthermore, young people and adults now travel a lot, and by travelling they also learn. Never before in the…

NASA News Center

NASA Image and Video Library

2003-10-31

The NASA News Center, seen here, is the hub of news operations for the media, providing information and contacts about Space Shuttle processing and other activities around KSC. News Center staff also conduct media tours, escorting journalists and photo/videographers to key sites such as the launch pads and Vehicle Assembly Building as needed.

Fermilab | About Fermilab

Science.gov Websites

news For the media Particle Physics Neutrinos Fermilab and the LHC Dark matter and dark energy ADMX discoveries Questions for the universe Ask a scientist Tevatron Tevatron Timeline Tevatron accelerator Tevatron experiments Tevatron operation Shutdown process For the media Video of shutdown event Guest book

Fermilab | Tevatron | Interactive Timeline

Science.gov Websites

Process Looking Ahead For the Media Video of Shutdown Event Guest Book TevatronImpact June 11, 2012 About the Symposium Symposium Agenda Travel & Lodging List of Registrants Organizing Committee Follow in the News Quantum Diaries Tevatron Home Looking Ahead For the Media Shutdown Event Previous Next

40 CFR 63.12005 - What definitions apply to this subpart?

Code of Federal Regulations, 2013 CFR

2013-07-01

... allowable working pressure of the process component. Conservation vents must be designed to open only when... constituents that approach the limits of solubility for scrubbing media, the highest or lowest HAP mass loading rate of constituents that approach limits of solubility for scrubbing media. Maximum true vapor...

40 CFR 63.12005 - What definitions apply to this subpart?

Code of Federal Regulations, 2014 CFR

2014-07-01

... allowable working pressure of the process component. Conservation vents must be designed to open only when... constituents that approach the limits of solubility for scrubbing media, the highest or lowest HAP mass loading rate of constituents that approach limits of solubility for scrubbing media. Maximum true vapor...

Evaluation of biochar-anaerobic potato digestate mixtures as renewable components of horticultural potting media

USDA-ARS?s Scientific Manuscript database

Various formulations are used in horticultural potting media, with sphagnum peat moss, vermiculite and perlite currently among the most common components. We are examining a dried anaerobic digestate remaining after the fermentation of potato processing wastes to replace organic components such as p...

Consequences of U.S. Navy Diving Mishaps: Air Embolism and Barotrauma.

DTIC Science & Technology

1985-12-01

diver), displacement of the intervertebral disc (I diver), and various combinations of hearing impairment, otitis ", media , otitis externa, and other...hospitalization for otitis media , otitis externa, and other diseases of the ear and mastoid process (8 days later)/ released from active duty (2 yrs, 4

Let's Get Physical-Or Not

ERIC Educational Resources Information Center

Kim, Ann

2005-01-01

Necessity is still the mother of invention, and physical processing is a reality for most libraries. Ergo, the inevitable development of Indigo Media and its innovative MediaPrint software, which allows distributors to overlay customized labels, logos, barcodes, and artwork onto retail labels of audiobooks, CDs, VHS tapes, DVDs, and CD-ROMs, on a…

A new tape product for optical data storage

NASA Technical Reports Server (NTRS)

Larsen, T. L.; Woodard, F. E.; Pace, S. J.

1993-01-01

A new tape product has been developed for optical data storage. Laser data recording is based on hole or pit formation in a low melting metallic alloy system. The media structure, sputter deposition process, and media characteristics, including write sensitivity, error rates, wear resistance, and archival storage are discussed.

Computational Participation: Understanding Coding as an Extension of Literacy Instruction

ERIC Educational Resources Information Center

Burke, Quinn; O'Byrne, W. Ian; Kafai, Yasmin B.

2016-01-01

Understanding the computational concepts on which countless digital applications run offers learners the opportunity to no longer simply read such media but also become more discerning end users and potentially innovative "writers" of new media themselves. To think computationally--to solve problems, to design systems, and to process and…

Fermilab | Visit Fermilab

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media Tevatron experiments Tevatron operation Shutdown process For the media Video of shutdown event Guest book check on holiday hours or check the Lederman Science Center website. Groups of six or more must book a

Fermilab | Resources for

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media Tevatron experiments Tevatron operation Shutdown process For the media Video of shutdown event Guest book Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For

Fermilab | Contact Fermilab | Email Fermilab

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media Tevatron experiments Tevatron operation Shutdown process For the media Video of shutdown event Guest book , Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For Industry Jobs Interact

Fermilab | Tevatron | Shutdown Process

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For

Planning the Library Media Center Facility for the 1990s and Beyond.

ERIC Educational Resources Information Center

Texas Education Agency, Austin.

This manual presents recommendations for incorporating present and future technological changes into workable, efficient, pleasant school library media facilities in two major sections: Planning the Facility and Activity Areas. The first section addresses the planning process (appointing the building committee, evaluating the library media…

EPA/NSF ETV Equipment Verification Testing Plan for the Removal of Volatile Organic Chemical Contaminants by Adsorptive Media Processes

EPA Science Inventory

This document is the Environmental Technology Verification (ETV) Technology Specific Test Plan (TSTP) for evaluation of drinking water treatment equipment utilizing adsorptive media for synthetic organic chemical (SOC) removal. This TSTP is to be used within the structure provid...

Bild- und Tontraeger im Fremdsprachenunterricht. Eine rentable Investition? (Visual and Sound Media in Foreign Language Teaching--A Profitable Investment?)

ERIC Educational Resources Information Center

Macht, Konrad

1978-01-01

Discusses a "rational concept" of integration of audiovisual teaching aids into the foreign language teaching process that would be based on a positive evaluation of teacher-centered instruction. Offers a model for integration of human and technical media. (IFS/WGA)

TREATMENT OF URBAN STORMWATER FOR DISSOLVED POLLUTANTS: A COMPARATIVE STUDY OF THREE NATURAL ORGANIC MEDIA

EPA Science Inventory

The feasibility of using hard and soft wood tree mulch and processed jute fiber, as filter media, for treating mixtures of dissolved pollutants (toxic organic compounds and heavy metals) in urban stormwater (SW) runoff was evaluated. Copper (Cu), cadmium (Cd), chromium (Cr+6), l...

Mining Social Media Data for Understanding Students' Learning Experiences

ERIC Educational Resources Information Center

Chen, Xin; Vorvoreanu, Mihaela; Madhavan, Krishna

2014-01-01

Students' informal conversations on social media (e.g., Twitter, Facebook) shed light into their educational experiences--opinions, feelings, and concerns about the learning process. Data from such uninstrumented environments can provide valuable knowledge to inform student learning. Analyzing such data, however, can be challenging. The complexity…

Lessons Learned from Introducing Social Media Use in Undergraduate Economics Research

ERIC Educational Resources Information Center

O'Brien, Martin; Freund, Katarina

2018-01-01

The research process and associated literacy requirements are often unfamiliar and daunting obstacles for undergraduate students. The use of social media has the potential to assist research training and encourage active learning, social inclusion and student engagement. This paper documents the lessons learned from developing a blended learning…

Student Inquiry in the Research Process: Part I: Inquiry Research Basics.

ERIC Educational Resources Information Center

Preddy, Leslie B.

2002-01-01

Discusses the appropriate use of inquiry among students, teachers, and library media specialists. Topics include planning for an inquiry research project; collaboration between the library media specialist and classroom teacher; national goals, standards, and best practices; teacher roles for inquiry; and evaluating inquiry research. (LRW)

Exposure to Media and Theory-of-Mind Development in Preschoolers

ERIC Educational Resources Information Center

Mar, Raymond A.; Tackett, Jennifer L.; Moore, Chris

2010-01-01

Exposure to different forms of narrative media may influence children's development of theory-of-mind. Because engagement with fictional narratives provides one with information about the social world, and possibly draws upon theory-of-mind processes during comprehension, exposure to storybooks, movies, and television may influence theory-of-mind…

Scaling Up Research on Drug Abuse and Addiction Through Social Media Big Data.

PubMed

Kim, Sunny Jung; Marsch, Lisa A; Hancock, Jeffrey T; Das, Amarendra K

2017-10-31

Substance use-related communication for drug use promotion and its prevention is widely prevalent on social media. Social media big data involve naturally occurring communication phenomena that are observable through social media platforms, which can be used in computational or scalable solutions to generate data-driven inferences. Despite the promising potential to utilize social media big data to monitor and treat substance use problems, the characteristics, mechanisms, and outcomes of substance use-related communications on social media are largely unknown. Understanding these aspects can help researchers effectively leverage social media big data and platforms for observation and health communication outreach for people with substance use problems. The objective of this critical review was to determine how social media big data can be used to understand communication and behavioral patterns of problematic use of prescription drugs. We elaborate on theoretical applications, ethical challenges and methodological considerations when using social media big data for research on drug abuse and addiction. Based on a critical review process, we propose a typology with key initiatives to address the knowledge gap in the use of social media for research on prescription drug abuse and addiction. First, we provided a narrative summary of the literature on drug use-related communication on social media. We also examined ethical considerations in the research processes of (1) social media big data mining, (2) subgroup or follow-up investigation, and (3) dissemination of social media data-driven findings. To develop a critical review-based typology, we searched the PubMed database and the entire e-collection theme of "infodemiology and infoveillance" in the Journal of Medical Internet Research / JMIR Publications. Studies that met our inclusion criteria (eg, use of social media data concerning non-medical use of prescription drugs, data informatics-driven findings) were reviewed for knowledge synthesis. User characteristics, communication characteristics, mechanisms and predictors of such communications, and the psychological and behavioral outcomes of social media use for problematic drug use-related communications are the dimensions of our typology. In addition to ethical practices and considerations, we also reviewed the methodological and computational approaches used in each study to develop our typology. We developed a typology to better understand non-medical, problematic use of prescription drugs through the lens of social media big data. Highly relevant studies that met our inclusion criteria were reviewed for knowledge synthesis. The characteristics of users who shared problematic substance use-related communications on social media were reported by general group terms, such as adolescents, Twitter users, and Instagram users. All reviewed studies examined the communication characteristics, such as linguistic properties, and social networks of problematic drug use-related communications on social media. The mechanisms and predictors of such social media communications were not directly examined or empirically identified in the reviewed studies. The psychological or behavioral consequence (eg, increased behavioral intention for mimicking risky health behaviors) of engaging with and being exposed to social media communications regarding problematic drug use was another area of research that has been understudied. We offer theoretical applications, ethical considerations, and empirical evidence within the scope of social media communication and prescription drug abuse and addiction. Our critical review suggests that social media big data can be a tremendous resource to understand, monitor and intervene on drug abuse and addiction problems. ©Sunny Jung Kim, Lisa A Marsch, Jeffrey T Hancock, Amarendra K Das. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 31.10.2017.

Scaling Up Research on Drug Abuse and Addiction Through Social Media Big Data

PubMed Central

Marsch, Lisa A; Hancock, Jeffrey T; Das, Amarendra K

2017-01-01

Background Substance use–related communication for drug use promotion and its prevention is widely prevalent on social media. Social media big data involve naturally occurring communication phenomena that are observable through social media platforms, which can be used in computational or scalable solutions to generate data-driven inferences. Despite the promising potential to utilize social media big data to monitor and treat substance use problems, the characteristics, mechanisms, and outcomes of substance use–related communications on social media are largely unknown. Understanding these aspects can help researchers effectively leverage social media big data and platforms for observation and health communication outreach for people with substance use problems. Objective The objective of this critical review was to determine how social media big data can be used to understand communication and behavioral patterns of problematic use of prescription drugs. We elaborate on theoretical applications, ethical challenges and methodological considerations when using social media big data for research on drug abuse and addiction. Based on a critical review process, we propose a typology with key initiatives to address the knowledge gap in the use of social media for research on prescription drug abuse and addiction. Methods First, we provided a narrative summary of the literature on drug use–related communication on social media. We also examined ethical considerations in the research processes of (1) social media big data mining, (2) subgroup or follow-up investigation, and (3) dissemination of social media data-driven findings. To develop a critical review-based typology, we searched the PubMed database and the entire e-collection theme of “infodemiology and infoveillance” in the Journal of Medical Internet Research / JMIR Publications. Studies that met our inclusion criteria (eg, use of social media data concerning non-medical use of prescription drugs, data informatics-driven findings) were reviewed for knowledge synthesis. User characteristics, communication characteristics, mechanisms and predictors of such communications, and the psychological and behavioral outcomes of social media use for problematic drug use–related communications are the dimensions of our typology. In addition to ethical practices and considerations, we also reviewed the methodological and computational approaches used in each study to develop our typology. Results We developed a typology to better understand non-medical, problematic use of prescription drugs through the lens of social media big data. Highly relevant studies that met our inclusion criteria were reviewed for knowledge synthesis. The characteristics of users who shared problematic substance use–related communications on social media were reported by general group terms, such as adolescents, Twitter users, and Instagram users. All reviewed studies examined the communication characteristics, such as linguistic properties, and social networks of problematic drug use–related communications on social media. The mechanisms and predictors of such social media communications were not directly examined or empirically identified in the reviewed studies. The psychological or behavioral consequence (eg, increased behavioral intention for mimicking risky health behaviors) of engaging with and being exposed to social media communications regarding problematic drug use was another area of research that has been understudied. Conclusions We offer theoretical applications, ethical considerations, and empirical evidence within the scope of social media communication and prescription drug abuse and addiction. Our critical review suggests that social media big data can be a tremendous resource to understand, monitor and intervene on drug abuse and addiction problems. PMID:29089287

Lattice Boltzmann simulation of CO2 reactive transport in network fractured media

NASA Astrophysics Data System (ADS)

Tian, Zhiwei; Wang, Junye

2017-08-01

Carbon dioxide (CO2) geological sequestration plays an important role in mitigating CO2 emissions for climate change. Understanding interactions of the injected CO2 with network fractures and hydrocarbons is key for optimizing and controlling CO2 geological sequestration and evaluating its risks to ground water. However, there is a well-known, difficult process in simulating the dynamic interaction of fracture-matrix, such as dynamic change of matrix porosity, unsaturated processes in rock matrix, and effect of rock mineral properties. In this paper, we develop an explicit model of the fracture-matrix interactions using multilayer bounce-back treatment as a first attempt to simulate CO2 reactive transport in network fractured media through coupling the Dardis's LBM porous model for a new interface treatment. Two kinds of typical fracture networks in porous media are simulated: straight cross network fractures and interleaving network fractures. The reaction rate and porosity distribution are illustrated and well-matched patterns are found. The species concentration distribution and evolution with time steps are also analyzed and compared with different transport properties. The results demonstrate the capability of this model to investigate the complex processes of CO2 geological injection and reactive transport in network fractured media, such as dynamic change of matrix porosity.

Standardization and assessment of cell culture media quantities in roller poly ethylene terephthalate bottles employed in the industrial rabies viral vaccine production.

PubMed

Jagannathan, S; Chaansha, S; Rajesh, K; Santhiya, T; Charles, C; Venkataramana, K N

2009-09-15

Vero cells are utilized for production of rabies vaccine. This study deals with the optimize quantity media require for the rabies vaccine production in the smooth roller surface. The rabies virus (Pasteur vaccine strain) is infected to monolayer of the various experimented bottles. To analyze the optimal quantity of media for the production of rabies viral harvest during the process of Vero cell derived rabies vaccine. The trials are started from 200 to 400 mL (PTARV-1, PTARV-2, PTARV-3, PTARV-4 and PTARV-5). The samples are taken in an appropriate time intervals for analysis of In Process Quality Control (IPQC) tests. The collected viral harvests are further processed to rabies vaccine in a pilot level and in addition to scale up an industrial level. Based on the evaluation the PTARV-2 (250 mL) show highly encouraging results for the Vero cell derived rabies vaccine production.

New insights into saline water evaporation from porous media: Complex interaction between evaporation rates, precipitation, and surface temperature

NASA Astrophysics Data System (ADS)

Shokri-Kuehni, Salomé M. S.; Vetter, Thomas; Webb, Colin; Shokri, Nima

2017-06-01

Understanding salt transport and deposition patterns during evaporation from porous media is important in many engineering and hydrological processes such as soil salinization, ecosystem functioning, and land-atmosphere interaction. As evaporation proceeds, salt concentration increases until it exceeds solubility limits, locally, and crystals precipitate. The interplay between transport processes, crystallization, and evaporation influences where crystallization occurs. During early stages, the precipitated salt creates an evolving porous structure affecting the evaporation kinetics. We conducted a comprehensive series of experiments to investigate how the salt concentration and precipitation influence evaporation dynamics. Our results illustrate the contribution of the evolving salt crust to the evaporative mass losses. High-resolution thermal imaging enabled us to investigate the complex temperature dynamics at the surface of precipitated salt, providing further confirmation of salt crust contribution to the evaporation. We identify different phases of saline water evaporation from porous media with the corresponding dominant mechanisms in each phase and extend the physical understanding of such processes.

Communications Contingency Plan: Planning for Crises and Controversy. Phase 1

NASA Technical Reports Server (NTRS)

Treise, Deborah; Bernstein, Arla G.; Yates, Brad

1998-01-01

Interviews were conducted with a variety of Marshall Space Flight Center personnel and local media representatives in Huntsville, Alabama, in order to identify the current perceptions of these individuals regarding communication effectiveness between MSFC and the media. The purposes of the Phase One report are to (1) assess the need for a contingency plan for communicating in situations of crisis and controversy; (2) identify goals and objectives for the planning process; and (3) provide recommendations for future planning activities to achieve the goals and objectives outlined in Phase One. It is strongly recommended that MSFC personnel who are involved in communications with the media participate in a facilitated, strategic communications planning process in order to develop Phase Two of the Communications Contingency Plan (CCP). Phase Two will address (1) the categorizing, ranking and prioritizing of crises and controversies; (2) the development of action steps and implementation strategies for the CCP; and (3) the development of a monitoring and evaluation process for ongoing plan effectiveness.

Peer-Based Social Media Features in Behavior Change Interventions: Systematic Review.

PubMed

Elaheebocus, Sheik Mohammad Roushdat Ally; Weal, Mark; Morrison, Leanne; Yardley, Lucy

2018-02-22

Incorporating social media features into digital behavior change interventions (DBCIs) has the potential to contribute positively to their success. However, the lack of clear design principles to describe and guide the use of these features in behavioral interventions limits cross-study comparisons of their uses and effects. The aim of this study was to provide a systematic review of DBCIs targeting modifiable behavioral risk factors that have included social media features as part of their intervention infrastructure. A taxonomy of social media features is presented to inform the development, description, and evaluation of behavioral interventions. Search terms were used in 8 databases to identify DBCIs that incorporated social media features and targeted tobacco smoking, diet and nutrition, physical activities, or alcohol consumption. The screening and review process was performed by 2 independent researchers. A total of 5264 articles were screened, and 143 articles describing a total of 134 studies were retained for full review. The majority of studies (70%) reported positive outcomes, followed by 28% finding no effects with regard to their respective objectives and hypothesis, and 2% of the studies found that their interventions had negative outcomes. Few studies reported on the association between the inclusion of social media features and intervention effect. A taxonomy of social media features used in behavioral interventions has been presented with 36 social media features organized under 7 high-level categories. The taxonomy has been used to guide the analysis of this review. Although social media features are commonly included in DBCIs, there is an acute lack of information with respect to their effect on outcomes and a lack of clear guidance to inform the selection process based on the features' suitability for the different behaviors. The proposed taxonomy along with the set of recommendations included in this review will support future research aimed at isolating and reporting the effects of social media features on DBCIs, cross-study comparisons, and evaluations. ©Sheik Mohammad Roushdat Ally Elaheebocus, Mark Weal, Leanne Morrison, Lucy Yardley. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 22.02.2018.

I want to media multitask and I want to do it now: Individual differences in media multitasking predict delay of gratification and system-1 thinking.

PubMed

Schutten, Dan; Stokes, Kirk A; Arnell, Karen M

2017-01-01

Media multitasking, the concurrent use of multiple media forms, has been shown to be related to greater self-reported impulsivity and less self-control. These measures are both hallmarks of the need for immediate gratification which has been associated with fast, intuitive 'system-1' decision making, as opposed to more deliberate and effortful 'system-2' decision making. In Study 1, we used the Cognitive Reflection Task (CRT) to examine whether individuals who engage heavily in media multitasking differ from those who are light media multitaskers in their degree of system-1 versus system-2 thinking. In Study 2 we examined whether heavy and light media multitaskers differ in delay of gratification, using the delay discounting measure which estimates the preference for smaller immediate rewards, relative to larger delayed rewards in a hypothetical monetary choice task. We found that heavy media multitaskers were more likely than light media multitaskers to endorse intuitive, but wrong, decisions on the CRT indicating a greater reliance on 'system-1' thinking. Heavy media multitaskers were also willing to settle for less money immediately relative to light media multitaskers who were more willing to wait for the larger delayed reward. These results suggest that heavy media multitaskers have a reactive decision-making style that promotes current desires (money, ease of processing) at the expense of accuracy and future rewards. These findings highlight the potential for heavy media multitaskers to be at risk for problematic behaviors associated with delay discounting - behaviors such as substance abuse, overeating, problematic gambling, and poor financial management.

Failure detection in high-performance clusters and computers using chaotic map computations

DOEpatents

Rao, Nageswara S.

2015-09-01

A programmable media includes a processing unit capable of independent operation in a machine that is capable of executing 10.sup.18 floating point operations per second. The processing unit is in communication with a memory element and an interconnect that couples computing nodes. The programmable media includes a logical unit configured to execute arithmetic functions, comparative functions, and/or logical functions. The processing unit is configured to detect computing component failures, memory element failures and/or interconnect failures by executing programming threads that generate one or more chaotic map trajectories. The central processing unit or graphical processing unit is configured to detect a computing component failure, memory element failure and/or an interconnect failure through an automated comparison of signal trajectories generated by the chaotic maps.

Stimulated electronic transition concept for an erasable optical memory

NASA Technical Reports Server (NTRS)

Albin, Sacharia; Satira, James D.; Livingston, David L.; Shull, Thomas A.

1992-01-01

A new concept for an erasable optical memory is demonstrated using stimulated electronic transition (SET). Large bandgap semiconductors are suitable materials for the SET medium. The properties of MgS:Eu,Sm and SrS:Eu,Sm as possible media for the SET process are investigated. Quantum storage is achieved in the form of charges in deep levels in the medium and stimulated radiative recombination is used as the reading process. Unlike magneto-optic (M-O) and phase change (PC) processes, optical writing, reading and erasing are achieved without localized heating. The SET process will have an inherently faster data transfer rate and a higher storage density, and the medium will be more durable than the M-O and PC media. A possible application of the SET process in neural networks is also discussed.

The Importance of Audience and Agency for Representation: A Case Study of an Urban Youth Media Community.

PubMed

Charmaraman, Linda

2010-01-01

PURPOSE: Urban youths' agency to represent their realities through media has been largely unexplored in the youth development literature. In this qualitative case study of an after-school youth media program in the Bay Area, expressions of youth agency and the role of audiences are explored during the process of producing videos for public consumption. METHODOLOGY: As participant observer of 14 ethnically diverse youth participants aged between 15 and 18 years over 18 months, I documented (a) the kind of agencies participants engaged in and (b) the impact of live and imagined future audiences on youths' creative processes. Analyses of field notes, semi-structured interviews, and media projects were conducted using thematic analysis to inductively generate emerging categories. FINDINGS: Themes included an agentive sense of self-efficacy, commitment, and responsibility, as well as perceived contributions to local audiences and an emerging collective identity. The youth demonstrated their increased sense of a social or civic duty to realistically represent youth of color to familiar and unfamiliar audiences. IMPLICATIONS: This case study demonstrated how one youth media organization fostered agency through youth authorship, production, distribution, and local community dialogue. By documenting the impact of audiences from conception to public reception, this study provides valuable insight into the agentive process of publicly "performing" a commitment to complete a social change video project. CONTRIBUTION: This chapter underscores the value of performance within youth development programs and the critical component of audiences as one form of authentic assessment in order to foster individual and collective agency.

The Importance of Audience and Agency for Representation: A Case Study of an Urban Youth Media Community

PubMed Central

Charmaraman, Linda

2010-01-01

Purpose Urban youths' agency to represent their realities through media has been largely unexplored in the youth development literature. In this qualitative case study of an after-school youth media program in the Bay Area, expressions of youth agency and the role of audiences are explored during the process of producing videos for public consumption. Methodology As participant observer of 14 ethnically diverse youth participants aged between 15 and 18 years over 18 months, I documented (a) the kind of agencies participants engaged in and (b) the impact of live and imagined future audiences on youths' creative processes. Analyses of field notes, semi-structured interviews, and media projects were conducted using thematic analysis to inductively generate emerging categories. Findings Themes included an agentive sense of self-efficacy, commitment, and responsibility, as well as perceived contributions to local audiences and an emerging collective identity. The youth demonstrated their increased sense of a social or civic duty to realistically represent youth of color to familiar and unfamiliar audiences. Implications This case study demonstrated how one youth media organization fostered agency through youth authorship, production, distribution, and local community dialogue. By documenting the impact of audiences from conception to public reception, this study provides valuable insight into the agentive process of publicly “performing” a commitment to complete a social change video project. Contribution This chapter underscores the value of performance within youth development programs and the critical component of audiences as one form of authentic assessment in order to foster individual and collective agency. PMID:20671812

Role of chemotaxis in the transport of bacteria through saturated porous media

USGS Publications Warehouse

Ford, R.M.; Harvey, R.W.

2007-01-01

Populations of chemotactic bacteria are able to sense and respond to chemical gradients in their surroundings and direct their migration toward increasing concentrations of chemicals that they perceive to be beneficial to their survival. It has been suggested that this phenomenon may facilitate bioremediation processes by bringing bacteria into closer proximity to the chemical contaminants that they degrade. To determine the significance of chemotaxis in these processes it is necessary to quantify the magnitude of the response and compare it to other groundwater processes that affect the fate and transport of bacteria. We present a systematic approach toward quantifying the chemotactic response of bacteria in laboratory scale experiments by starting with simple, well-defined systems and gradually increasing their complexity. Swimming properties of individual cells were assessed from trajectories recorded by a tracking microscope. These properties were used to calculate motility and chemotaxis coefficients of bacterial populations in bulk aqueous media which were compared to experimental results of diffusion studies. Then effective values of motility and chemotaxis coefficients in single pores, pore networks and packed columns were analyzed. These were used to estimate the magnitude of the chemotactic response in porous media and to compare with dispersion coefficients reported in the field. This represents a compilation of many studies over a number of years. While there are certainly limitations with this approach for ultimately quantifying motility and chemotaxis in granular aquifer media, it does provide insight into what order of magnitude responses are possible and which characteristics of the bacteria and media are expected to be important. ?? 2006 Elsevier Ltd. All rights reserved.

Real-time imaging through strongly scattering media: seeing through turbid media, instantly

PubMed Central

Sudarsanam, Sriram; Mathew, James; Panigrahi, Swapnesh; Fade, Julien; Alouini, Mehdi; Ramachandran, Hema

2016-01-01

Numerous everyday situations like navigation, medical imaging and rescue operations require viewing through optically inhomogeneous media. This is a challenging task as photons propagate predominantly diffusively (rather than ballistically) due to random multiple scattering off the inhomogenieties. Real-time imaging with ballistic light under continuous-wave illumination is even more challenging due to the extremely weak signal, necessitating voluminous data-processing. Here we report imaging through strongly scattering media in real-time and at rates several times the critical flicker frequency of the eye, so that motion is perceived as continuous. Two factors contributed to the speedup of more than three orders of magnitude over conventional techniques - the use of a simplified algorithm enabling processing of data on the fly, and the utilisation of task and data parallelization capabilities of typical desktop computers. The extreme simplicity of the technique, and its implementation with present day low-cost technology promises its utility in a variety of devices in maritime, aerospace, rail and road transport, in medical imaging and defence. It is of equal interest to the common man and adventure sportsperson like hikers, divers, mountaineers, who frequently encounter situations requiring realtime imaging through obscuring media. As a specific example, navigation under poor visibility is examined. PMID:27114106

Impairment in the recognition of emotion across different media following traumatic brain injury.

PubMed

Williams, Claire; Wood, Rodger Ll

2010-02-01

The current study examined emotion recognition following traumatic brain injury (TBI) and examined whether performance differed according to the affective valence and type of media presentation of the stimuli. A total of 64 patients with TBI and matched controls completed the Emotion Evaluation Test (EET) and Ekman 60 Faces Test (E-60-FT). Patients with TBI also completed measures of information processing and verbal ability. Results revealed that the TBI group were significantly impaired compared to controls when recognizing emotion on the EET and E-60-FT. A significant main effect of valence was found in both groups, with poor recognition of negative emotions. However, the difference between the recognition of positive and negative emotions was larger in the TBI group. The TBI group were also more accurate recognizing emotion displayed in audiovisual media (EET) than that displayed in still media (E-60-FT). No significant relationship was obtained between emotion recognition tasks and information-processing speed. A significant positive relationship was found between the E-60-FT and one measure of verbal ability. These findings support models of emotion that specify separate neurological pathways for certain emotions and different media and confirm that patients with TBI are vulnerable to experiencing emotion recognition difficulties.

Advanced Magnetic Materials Methods and Numerical Models for Fluidization in Microgravity and Hypogravity

NASA Technical Reports Server (NTRS)

Atwater, James; Wheeler, Richard, Jr.; Akse, James; Jovanovic, Goran; Reed, Brian

2013-01-01

To support long-duration manned missions in space such as a permanent lunar base, Mars transit, or Mars Surface Mission, improved methods for the treatment of solid wastes, particularly methods that recover valuable resources, are needed. The ability to operate under microgravity and hypogravity conditions is essential to meet this objective. The utilization of magnetic forces to manipulate granular magnetic media has provided the means to treat solid wastes under variable gravity conditions by filtration using a consolidated magnetic media bed followed by thermal processing of the solid wastes in a fluidized bed reactor. Non-uniform magnetic fields will produce a magnetic field gradient in a bed of magnetically susceptible media toward the distributor plate of a fluidized bed reactor. A correctly oriented magnetic field gradient will generate a downward direct force on magnetic media that can substitute for gravitational force in microgravity, or which may augment low levels of gravity, such as on the Moon or Mars. This approach is termed Gradient Magnetically Assisted Fluidization (G-MAFB), in which the magnitude of the force on the fluidized media depends upon the intensity of the magnetic field (H), the intensity of the field gradient (dH/dz), and the magnetic susceptibility of the media. Fluidized beds based on the G-MAFB process can operate in any gravitational environment by tuning the magnetic field appropriately. Magnetic materials and methods have been developed that enable G-MAFB operation under variable gravity conditions.

Between Casual Commitment and Cross-Media Articulation: The Faith of the Napkin

NASA Astrophysics Data System (ADS)

Bødker, Susanne; Petersen, Anja Bechmann

Since the mid-1990s, newspaper companies have faced dramatic challenges due to stagnation or decline in the consumption of traditional media (12), new types of production technology, and new types of products. At present, media companies worldwide struggle with a new challenge called cross-media production: the integrated production of news stories to multiple media platforms (paper, TV, radio, etc.) (13). Digital materials make it possible to produce content for several different media platforms, and the different strengths of the media further support new forms of news coverage that cross these platforms. The very recent explosion of blogs and video podcasting are new examples adding to the family of products and ideally, the reporters become storytellers who choose the most suitable media for their story. The reality, however, is far more complicated: The Danish media company Nordjyske Medier was a local newspaper that has now diversified and produces daily news for radio, TV, web, a daily newspaper, and several additional products. All production is gathered in one location, where reporters produce news stories to be distributed in the various media. The editorial staff of all media is placed literally in the middle of this location. We carried out an empirical study of cooperation and planning at the media company (1; 5). The company used a production planning system in place, called the Napkin. The Napkin was not used very much, it was heavily criticized by reporters and it was at the point of being replaced by a different planning system, which was better integrated with the production system (11). This system, too, was later abandoned. This has motivated us to understand better the processes of planning and articulating the cross-media production and how information technology supported such cross-media production.

METAL MEDIA FILTERS, AG-1 SECTION FI

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

Adamson, D.

One application of metal media filters is in various nuclear air cleaning processes including applications for protecting workers, the public and the environment from hazardous and radioactive particles. To support this application the development of the ASME AG-1 FI Standard on Metal Media has been under way for more than ten years. Development of the proposed section has required resolving several difficult issues associated with operating conditions (media velocity, pressure drop, etc.), qualification testing, and quality acceptance testing. Performance characteristics of metal media are dramatically different than the glass fiber media with respect to parameters like differential pressures, operating temperatures,more » media strength, etc. These differences make existing data for a glass fiber media inadequate for qualifying a metal media filter for AG-1. In the past much work has been conducted on metal media filters at facilities such as Lawrence Livermore National Laboratory (LLNL) and Savannah River National Laboratory (SRNL) to qualify the media as High Efficiency Particulate Air (HEPA) Filters. Particle retention testing has been conducted at Oak Ridge Filter Test Facility and at Air Techniques International (ATI) to prove that the metal media meets or exceeds the 99.97% particle retention required for a HEPA Filter. Even with his testing, data was lacking to complete an AG-1 FI Standard on metal media. With funding secured by Mississippi State University (MSU) from National Nuclear Security Administration (NNSA), a research test stand is being designed and fabricated at MSU's Institute for Clean Energy Technology (ICET) Facility to obtain qualification data on metal media. This in turn will support required data needed for the FI Standard. The paper will discuss in detail how the test stand at MSU will obtain the necessary data to complete the FI Standard.« less

“Social” Neuroscience: Leveraging Social Media to Increase Student Engagement and Public Understanding of Neuroscience

PubMed Central

Valentine, Alissa; Kurczek, Jake

2016-01-01

Neuroscience is young and still developing. It is quickly adapting to a number of emerging changes in science and education. Not only have neuroscientists been at the forefront of the open access publishing movement, but many prominent neuroscientists continue to push towards making science more accessible and understandable to the broader public. Social media is a global phenomenon that is changing the way that we talk about research and education. Researchers, students, and the public alike can leverage social media to find updates in research and higher education. Social media also provides pathways to connect with experts and non-experts in a way never been seen before. Two major trends are appearing in education and social media: 1) providing more engaging teaching activities, and 2) providing opportunities for community engagement using teaching activities that leverage social media. In this article, we describe a semester long teaching activity that challenged students to use social media in their learning process. We provide initial evaluation and feedback from the students on their social media experience in class, and suggestions for how to improve the project in future implementations. PMID:27980477

Unified multiphase modeling for evolving, acoustically coupled systems consisting of acoustic, elastic, poroelastic media and septa

NASA Astrophysics Data System (ADS)

Lee, Joong Seok; Kang, Yeon June; Kim, Yoon Young

2012-12-01

This paper presents a new modeling technique that can represent acoustically coupled systems in a unified manner. The proposed unified multiphase (UMP) modeling technique uses Biot's equations that are originally derived for poroelastic media to represent not only poroelastic media but also non-poroelastic ones ranging from acoustic and elastic media to septa. To recover the original vibro-acoustic behaviors of non-poroelastic media, material parameters of a base poroelastic medium are adjusted depending on the target media. The real virtue of this UMP technique is that interface coupling conditions between any media can be automatically satisfied, so no medium-dependent interface condition needs to be imposed explicitly. Thereby, the proposed technique can effectively model any acoustically coupled system having locally varying medium phases and evolving interfaces. A typical situation can occur in an iterative design process. Because the proposed UMP modeling technique needs theoretical justifications for further development, this work is mainly focused on how the technique recovers the governing equations of non-poroelastic media and expresses their interface conditions. We also address how to describe various boundary conditions of the media in the technique. Some numerical studies are carried out to demonstrate the validity of the proposed modeling technique.

Identification and root cause analysis of cell culture media precipitates in the viral deactivation treatment with high-temperature/short-time method.

PubMed

Cao, Xiaolin; Stimpfl, Gregory; Wen, Zai-Qing; Frank, Gregory; Hunter, Glenn

2013-01-01

High-temperature/short-time (HTST) treatment of cell culture media is one of the proven techniques used in the biopharmaceutical manufacturing industry for the prevention and mitigation of media viral contamination. With the HTST method, the formulated media is pasteurized (virus-deactivated) by heating and pumping the media continuously through the preset high-temperature holding tubes to achieve a specified period of time at a specific temperature. Recently, during the evaluation and implementation of HTST method in multiple Amgen, Inc. manufacturing facilities, media precipitates were observed in the tests of HTST treatments. The media precipitates may have adverse consequences such as clogging the HTST system, altering operating conditions and compromising the efficacy of viral deactivation, and ultimately affecting the media composition and cell growth. In this study, we report the identification of the composition of media precipitates from multiple media HTST runs using combined microspectroscopic methods including Raman, Fourier transform infrared spectroscopy, and scanning electron microscopy with energy-dispersive X-ray spectroscopy. The major composition in the precipitates was determined to be metal phosphates, including calcium phosphate, magnesium phosphate, and iron (III) phosphate. Based on the composition, stoichiometry, and root-cause study of media precipitations, methods were implemented for the mitigation and prevention of the occurrence of the media precipitation. Viral contamination in cell culture media is an important issue in the biopharmaceutical manufacturing industry and may have serious consequences on product quality, efficacy, and safety. High-temperature/short-time (HTST) treatment of cell culture media is one of the proven techniques used in the industry for the prevention and mitigation of media viral contamination. With the HTST method, the formulated media is pasteurized (virus-deactivated) by heating at preset conditions. This paper provides the identification and root-cause study of the media precipitates that adversely affected the HTST process and discusses the possible solutions to mitigate the precipitation problem.

Fashion alienation: older adults and the mass media.

PubMed

Kaiser, S B; Chandler, J L

1984-01-01

A self-administered questionnaire including questions related to fashion alienation, frequency of use of mass media for fashion information, and demographics was completed by 209 "50-plus" aged consumers in Northern California. Fashion alienation was measured using ten separate statements related to 1) degree of identification with fashion symbols in the media and 2) feelings of social and economic estrangement from fashion. Two of the statements produced significant regression models. In both statements, age was positively related to fashion alienation, and there was an inverse relationship between frequency of use of media for fashion information and fashion alienation. The data provide implications for a conceptual distinction between information and meaning processing with regard to fashion.

Proceedings for Lunch and Learn: Making science fun and exciting through social media

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

Biron, Lauren; Haffner, Julie; Nellist, Clara

Social media channels are vital for outreach and offer huge opportunities for scientists to directly engage with the public using nontraditional methods – including lots of creativity and humor. The physics community’s presence is growing more significant, and this session (designed for early career researchers) provided a lively discussion with experts in the domain. We covered how to best use social media to raise public awareness of science, share excitement and progress, and cultivate support from followers. We also discussed some of the thornier issues in social media, such as capturing the complexity of both the scientific process and themore » science itself.« less

The role of attention problems and impulsiveness in media violence effects on aggression.

PubMed

Swing, Edward L; Anderson, Craig A

2014-01-01

Previous research has established media violence as a causal risk factor for aggressive behavior. Several theoretical mechanisms have been identified to explain this effect. The present study assessed 422 undergraduate students to test the possibility that individual differences in attention problems and impulsiveness can help explain the link between violent media and aggression. Attention problems and impulsiveness proved to be a distinct construct from other processes believed to mediate aggression (aggressive beliefs, aggression related schemata, trait anger, and trait hostility). Attention problems and impulsiveness were uniquely related to both media exposure (total weekly hours and violent content) and aggression. Attention problems and impulsiveness were particularly related to impulsive (as opposed to premeditated) aggression. These results suggest that attention problems and impulsiveness may play an important role in violent media effects on aggression. © 2014 Wiley Periodicals, Inc.

The SDO Social Media Planning Process: Walking the cat back into the bag

NASA Astrophysics Data System (ADS)

Wawro, M.; Young, C.; Van Norden, W. M.; Durscher, R.

2012-12-01

As social media continues to grow as a way to communicate with the public about science missions, data and other STEM related topics, there has become a need for more organized and regimented Social Media programs and plans. In the Heliophysics science division at Goddard Space Flight Center we have been working on creating a template for social media programs which incorporates not just the goals for the program, as well as identifying an audience, but also deals with concerns about messaging, collaboration with other organizations, controversial topics, and evaluation. We hope that through creating a more unified approach we can develop a social media program that not only meets the needs of the audience but incorporates the needs of all of the different entities including the scientists, EPO Professionals and Office of Communications.

Development of New Supramolecular Lyotropic Liquid Crystals and Their Application as Alignment Media for Organic Compounds.

PubMed

Leyendecker, Martin; Meyer, Nils-Christopher; Thiele, Christina M

2017-09-11

Most alignment media for the residual dipolar coupling (RDC) based molecular structure determination of small organic compounds consist of rod-like polymers dissolved in organic solvents or of swollen cross-linked polymer gels. Thus far, the synthesis of polymer-based alignment media has been a challenging process, which is often followed by a time-consuming sample preparation. We herein propose the use of non-polymeric alignment media based on benzenetricarboxamides (BTAs), which self-assemble into rod-like supramolecules. Our newly found supramolecular lyotropic liquid crystals (LLCs) are studied in terms of their LLC properties and their suitability as alignment media in NMR spectroscopy. Scalable enantiodifferentiating properties are introduced through a sergeant-and-soldier principle by blending achiral with chiral substituted BTAs. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

"A breath of fresh air worth spreading": media coverage of retailer abandonment of tobacco sales.

PubMed

McDaniel, Patricia A; Offen, Naphtali; Yerger, Valerie B; Malone, Ruth E

2014-03-01

Media play an important role in the diffusion of innovations by spreading knowledge of their relative advantages. We examined media coverage of retailers abandoning tobacco sales to explore whether this innovation might be further diffused by media accounts. We searched online media databases (Lexis Nexis, Proquest, and Access World News) for articles published from 1995 to 2011, coding retrieved items through a collaborative process. We analyzed the volume, type, provenance, prominence, and content of coverage. We found 429 local and national news items. Two retailers who were the first in their category to end tobacco sales received the most coverage and the majority of prominent coverage. News items cited positive potential impacts of the decision more often than negative potential impacts, and frequently referred to tobacco-caused disease, death, or addiction. Letters to the editor and editorials were overwhelmingly supportive. The content of media coverage about retailers ending tobacco sales could facilitate broader diffusion of this policy innovation, contributing to the denormalization of tobacco and moving society closer to ending the tobacco epidemic. Media advocacy could increase and enhance such coverage.

Assisting the integration of social media in problem-based learning sessions in the Faculty of Medicine at King Abdulaziz University.

PubMed

Awan, Zuhier A; Awan, Almuatazbellah A; Alshawwa, Lana; Tekian, Ara; Park, Yoon Soo

2018-05-07

Issues related to traditional Problem-Based Learning (PBL) at King Abdulaziz University Faculty of Medicine (KAU-FOM), including lack of student interaction between sessions and outdated instructional materials have led to the examining the use of social media. This study examines factors affecting the implementation of social media into PBL sessions Methods: Mentored social media activities were incorporated between PBL sessions to third year medical students. Ground rules were set, and students were kept on track with learning objectives and authentic references. An online survey consisting of 18 questions were administered to measure the impact of the social media model embedded between PBL sessions. Feedback showed major improvements in students' learning process as well as identifying areas for improvement. The highest ratings were in participation and communication, knowledge and information gathering, and cooperation and team-building. This paper indicates that incorporating social media could facilitate learning between PBL sessions. Furthermore, guidelines are proposed to help educators implement a social media model into their PBL sessions.

A video processing method for convenient mobile reading of printed barcodes with camera phones

NASA Astrophysics Data System (ADS)

Bäckström, Christer; Södergård, Caj; Udd, Sture

2006-01-01

Efficient communication requires an appropriate choice and combination of media. The print media has succeeded to attract audiences also in our electronic age because of its high usability. However, the limitations of print are self evident. By finding ways of combining printed and electronic information into so called hybrid media, the strengths of both media can be obtained. In hybrid media, paper functions as an interface to the web, integrating printed products into the connected digital world. This is a "reinvention" of printed matter making it into a more communicative technology. Hybrid media means that printed products can be updated in real time. Multimedia clips, personalization and e-shopping can be added as a part of the interactive medium. The concept of enhancing print with interactive features has been around for years. However, the technology has been so far too restricting - people don't want to be tied in front of their PC's reading newspapers. Our solution is communicative and totally mobile. A code on paper or electronic media constitutes the link to mobility.

Media and health must forge a partnership.

PubMed

Ling, J C

1986-03-01

The objective of health for all requires use of all available means--traditional and modern--to reach the population and mobilize communities. The mass media have particular potential for breaking down class barriers and reaching large numbers. However, many media campaigns have been haphazard, without attention to the many determinants of health behavior or other program aspects. Media activity that is not part of a package of programmed activities, including interpersonal follow-up with clearly defined objectives and comprehensive strategy, is ineffective. Media personnel generally recognize their social responsibility in the development process. The media can confer status to a social issue and reinforce social norms. The World Health Organization Expert Committee on Health Education has identified the following roles of the mass media in the field of health: help strengthen political will by appealing to policy makers; raise general health consciousness and clarify options concerning actions that have a strong bearing on health; inform decision makers and the public about the latest developments in the health sciences; help deliver technical health message to the public; and foster community involvement by reflecting public opinion, encouraging dialogue, and facilitating feedback from the community.

Near Real Time Analytics of Human Sensor Networks in the Realm of Big Data

NASA Astrophysics Data System (ADS)

Aulov, O.; Halem, M.

2012-12-01

With the prolific development of social media, emergency responders have an increasing interest in harvesting social media from outlets such as Flickr, Twitter, and Facebook, in order to assess the scale and specifics of extreme events including wild fires, earthquakes, terrorist attacks, oil spills, etc. A number of experimental platforms have successfully been implemented to demonstrate the utilization of social media data in extreme events, including Twitter Earthquake Detector, which relied on tweets for earthquake monitoring; AirTwitter, which used tweets for air quality reporting; and our previous work, using Flickr data as boundary value forcings to improve the forecast of oil beaching in the aftermath of the Deepwater Horizon oil spill. The majority of these platforms addressed a narrow, specific type of emergency and harvested data from a particular outlet. We demonstrate an interactive framework for monitoring, mining and analyzing a plethora of heterogeneous social media sources for a diverse range of extreme events. Our framework consists of three major parts: a real time social media aggregator, a data processing and analysis engine, and a web-based visualization and reporting tool. The aggregator gathers tweets, Facebook comments from fan pages, Google+ posts, forum discussions, blog posts (such as LiveJournal and Blogger.com), images from photo-sharing platforms (such as Flickr, Picasa), videos from video-sharing platforms (youtube, Vimeo), and so forth. The data processing and analysis engine pre-processes the aggregated information and annotates it with geolocation and sentiment information. In many cases, the metadata of the social media posts does not contain geolocation information—-however, a human reader can easily guess from the body of the text what location is discussed. We are automating this task by use of Named Entity Recognition (NER) algorithms and a gazetteer service. The visualization and reporting tool provides a web-based, user-friendly interface that provides time-series analysis and plotting tools, geo-spacial visualization tools with interactive maps, and cause-effect inference tools. We demonstrate how we address big data challenges of monitoring, aggregating and analyzing vast amounts of social media data at a near realtime. As a result, our framework not only allows emergency responders to augment their situational awareness with social media information, but can also allow them to extract geophysical data and incorporate it into their analysis models.

Neutrophil Extracellular Traps and Fibrin in Otitis Media: Analysis of Human and Chinchilla Temporal Bones.

PubMed

Schachern, Patricia A; Kwon, Geeyoun; Briles, David E; Ferrieri, Patricia; Juhn, Steven; Cureoglu, Sebahattin; Paparella, Michael M; Tsuprun, Vladimir

2017-10-01

Bacterial resistance in acute otitis can result in bacterial persistence and biofilm formation, triggering chronic and recurrent infections. To investigate the middle ear inflammatory response to bacterial infection in human and chinchilla temporal bones. Six chinchillas underwent intrabullar inoculations with 0.5 mL of 106 colony-forming units (CFUs) of Streptococcus pneumoniae, serotype 2. Two days later, we counted bacteria in middle ear effusions postmortem. One ear from each chinchilla was processed in paraffin and sectioned at 5 µm. The opposite ear was embedded in epoxy resin, sectioned at a thickness of 1 µm, and stained with toluidine blue. In addition, we examined human temporal bones from 2 deceased donors with clinical histories of otitis media (1 with acute onset otitis media, 1 with recurrent infection). Temporal bones had been previously removed at autopsy, processed, embedded in celloidin, and cut at a thickness of 20 µm. Sections of temporal bones from both chinchillas and humans were stained with hematoxylin-eosin and immunolabeled with antifibrin and antihistone H4 antibodies. Histopatological and imminohistochemical changes owing to otitis media. Bacterial counts in chinchilla middle ear effusions 2 days after inoculation were approximately 2 logs above initial inoculum counts. Both human and chinchilla middle ear effusions contained bacteria embedded in a fibrous matrix. Some fibers in the matrix showed positive staining with antifibrin antibody, others with antihistone H4 antibody. In acute and recurrent otitis media, fibrin and neutrophil extracellular traps (NETs) are part of the host inflammatory response to bacterial infection. In the early stages of otitis media the host defense system uses fibrin to entrap bacteria, and NETs function to eliminate bacteria. In chronic otitis media, fibrin and NETs appear to persist.

Review on subsurface colloids and colloid-associated contaminant transport in saturated porous media.

PubMed

Kanti Sen, Tushar; Khilar, Kartic C

2006-02-28

In this review article, the authors present up-to-date developments on experimental, modeling and field studies on the role of subsurface colloidal fines on contaminant transport in saturated porous media. It is a complex phenomenon in porous media involving several basic processes such as colloidal fines release, dispersion stabilization, migration and fines entrapment/plugging at the pore constrictions and adsorption at solid/liquid interface. The effects of these basic processes on the contaminant transport have been compiled. Here the authors first present the compilation on in situ colloidal fines sources, release, stabilization of colloidal dispersion and migration which are a function of physical and chemical conditions of subsurface environment and finally their role in inorganic and organic contaminants transport in porous media. The important aspects of this article are as follows: (i) it gives not only complete compilation on colloidal fines-facilitated contaminant transport but also reviews the new role of colloidal fines in contaminant retardation due to plugging of pore constrictions. This plugging phenomenon also depends on various factors such as concentration of colloidal fines, superficial velocity and bead-to-particle size ratio. This plugging-based contaminant transport can be used to develop containment technique in soil and groundwater remediation. (ii) It also presents the importance of critical salt concentration (CSC), critical ionic strength for mixed salt, critical shear stressor critical particle concentration (CPC) on in situ colloidal fines release and migration and consequently their role on contaminant transport in porous media. (iii) It also reviews another class of colloidal fines called biocolloids and their transport in porous media. Finally, the authors highlight the future research based on their critical review on colloid-associated contaminant transport in saturated porous media.

An analysis of electrical conductivity model in saturated porous media

NASA Astrophysics Data System (ADS)

Cai, J.; Wei, W.; Qin, X.; Hu, X.

2017-12-01

Electrical conductivity of saturated porous media has numerous applications in many fields. In recent years, the number of theoretical methods to model electrical conductivity of complex porous media has dramatically increased. Nevertheless, the process of modeling the spatial conductivity distributed function continues to present challenges when these models used in reservoirs, particularly in porous media with strongly heterogeneous pore-space distributions. Many experiments show a more complex distribution of electrical conductivity data than the predictions derived from the experiential model. Studies have observed anomalously-high electrical conductivity of some low-porosity (tight) formations compared to more- porous reservoir rocks, which indicates current flow in porous media is complex and difficult to predict. Moreover, the change of electrical conductivity depends not only on the pore volume fraction but also on several geometric properties of the more extensive pore network, including pore interconnection and tortuosity. In our understanding of electrical conductivity models in porous media, we study the applicability of several well-known methods/theories to electrical characteristics of porous rocks as a function of pore volume, tortuosity and interconnection, to estimate electrical conductivity based on the micro-geometrical properties of rocks. We analyze the state of the art of scientific knowledge and practice for modeling porous structural systems, with the purpose of identifying current limitations and defining a blueprint for future modeling advances. We compare conceptual descriptions of electrical current flow processes in pore space considering several distinct modeling approaches. Approaches to obtaining more reasonable electrical conductivity models are discussed. Experiments suggest more complex relationships between electrical conductivity and porosity than experiential models, particularly in low-porosity formations. However, the available theoretical models combined with simulations do provide insight to how microscale physics affects macroscale electrical conductivity in porous media.

Flow, Transport, and Reaction in Porous Media: Percolation Scaling, Critical-Path Analysis, and Effective Medium Approximation

NASA Astrophysics Data System (ADS)

Hunt, Allen G.; Sahimi, Muhammad

2017-12-01

We describe the most important developments in the application of three theoretical tools to modeling of the morphology of porous media and flow and transport processes in them. One tool is percolation theory. Although it was over 40 years ago that the possibility of using percolation theory to describe flow and transport processes in porous media was first raised, new models and concepts, as well as new variants of the original percolation model are still being developed for various applications to flow phenomena in porous media. The other two approaches, closely related to percolation theory, are the critical-path analysis, which is applicable when porous media are highly heterogeneous, and the effective medium approximation—poor man's percolation—that provide a simple and, under certain conditions, quantitatively correct description of transport in porous media in which percolation-type disorder is relevant. Applications to topics in geosciences include predictions of the hydraulic conductivity and air permeability, solute and gas diffusion that are particularly important in ecohydrological applications and land-surface interactions, and multiphase flow in porous media, as well as non-Gaussian solute transport, and flow morphologies associated with imbibition into unsaturated fractures. We describe new applications of percolation theory of solute transport to chemical weathering and soil formation, geomorphology, and elemental cycling through the terrestrial Earth surface. Wherever quantitatively accurate predictions of such quantities are relevant, so are the techniques presented here. Whenever possible, the theoretical predictions are compared with the relevant experimental data. In practically all the cases, the agreement between the theoretical predictions and the data is excellent. Also discussed are possible future directions in the application of such concepts to many other phenomena in geosciences.

Development of an Interactive Social Media Tool for Parents with Concerns about Vaccines

ERIC Educational Resources Information Center

Shoup, Jo Ann; Wagner, Nicole M.; Kraus, Courtney R.; Narwaney, Komal J.; Goddard, Kristin S.; Glanz, Jason M.

2015-01-01

Objective: Describe a process for designing, building, and evaluating a theory-driven social media intervention tool to help reduce parental concerns about vaccination. Method: We developed an interactive web-based tool using quantitative and qualitative methods (e.g., survey, focus groups, individual interviews, and usability testing). Results:…

45 CFR 5.5 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-10-01

... necessarily determinative. When a request is from a representative of the news media, a purpose or use... the Social Security Act, 42 U.S.C. 1395h, 1395u. Duplication means the process of making a copy of a... the news media means a person actively gathering information for an entity organized and operated to...

45 CFR 5.5 - Definitions.

Code of Federal Regulations, 2012 CFR

2012-10-01

... necessarily determinative. When a request is from a representative of the news media, a purpose or use... the Social Security Act, 42 U.S.C. 1395h, 1395u. Duplication means the process of making a copy of a... the news media means a person actively gathering information for an entity organized and operated to...

45 CFR 5.5 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-10-01

... necessarily determinative. When a request is from a representative of the news media, a purpose or use... the Social Security Act, 42 U.S.C. 1395h, 1395u. Duplication means the process of making a copy of a... the news media means a person actively gathering information for an entity organized and operated to...

Instructional Strategy: Didactic Media Presentation to Optimize Student Learning

ERIC Educational Resources Information Center

Schilling, Jim

2017-01-01

Context: Subject matter is presented to athletic training students in the classroom using various modes of media. The specific type of mode and when to use it should be considered to maximize learning effectiveness. Other factors to consider in this process include a student's knowledge base and the complexity of material. Objective: To introduce…

Television Images and Adolescent Girls' Body Image Disturbance.

ERIC Educational Resources Information Center

Botta, Renee A.

1999-01-01

Contributes to scholarship on the effects of media images on adolescents, using social-comparison theory and critical-viewing theory. Finds that media do have an impact on body-image disturbance. Suggests that body-image processing is the key to understanding how television images affect adolescent girls' body-image attitudes and behaviors. (SR)

The Effect of Otitis Media with Effusion on the Masking-Level Difference and the Auditory Brainstem Response.

ERIC Educational Resources Information Center

Hall, Joseph W.; Grose, John H.

1993-01-01

This study of 14 children (ages 5-9) with a history of otitis media with effusion found that subjects had significantly reduced masking-level differences (MLD) compared to controls. Results suggest that the reduction in MLD may be related to abnormal brainstem processing. (Author/JDD)

New Practices in Doing Academic Development: Twitter as an Informal Learning Space

ERIC Educational Resources Information Center

McPherson, Megan; Budge, Kylie; Lemon, Narelle

2015-01-01

Using social media platforms to build informal learning processes and social networks is significant in academic development practices within higher education. We present three vignettes illustrating academic practices occurring on Twitter to show that using social media is beneficial for building networks of academics, locally and globally,…

"Dolly" Girls: Tweenies as Artefacts of Consumption

ERIC Educational Resources Information Center

Brookes, Fiona; Kelly, Peter

2009-01-01

The apparent sexualization and exploitation of young girls by the consumer media is a much debated topic in the advanced liberal democracies. This paper will develop the argument that the "consumer-media culture" has established itself as one of the most powerful influences in processes of self-formation for young people, and that a…

77 FR 50512 - Announcement of Requirements and Registration for Dare To Prepare (D2P) Challenge

Federal Register 2010, 2011, 2012, 2013, 2014

2012-08-21

... improve nationwide preparedness awareness and readiness. HHS/CDC will use social media outlets (blog... Process for Participants This challenge will be internet-based using a variety of social media platforms...) containing profane language, violence or weapons, sexually explicit content, or personal attacks on people or...

Utilization of Re-processed Anaerobically Digested Fiber from Dairy Manure as a Container Media Substrate

USDA-ARS?s Scientific Manuscript database

The solid fraction (fiber) from the effluent of the anaerobic digestion of dairy manure by plug flow technology yields material that has consistent physical properties (total porosity, air filled porosity at saturation, and water holding capacity) to perform satisfactorily as a plant growth media su...

Automating Media Centers and Small Libraries: A Microcomputer-Based Approach.

ERIC Educational Resources Information Center

Meghabghab, Dania Bilal

Although the general automation process can be applied to most libraries, small libraries and media centers require a customized approach. Using a systematic approach, this guide covers each step and aspect of automation in a small library setting, and combines the principles of automation with field- tested activities. After discussing needs…

Reader Theories and Educational Media Analysis.

ERIC Educational Resources Information Center

Becker, Ann DeVaney

Post structural reader theories--i.e., theories that focus on the reader/viewer rather than the text as the creator of meaning--are considered in this paper in terms of their application to educational media research. Some key concepts of reader theories are defined as follows: (1) reading is the process of creating meaning while viewing an…

Research in Mass Media and Face-to-Face Communication: Bridging the Gap.

ERIC Educational Resources Information Center

Avery, Robert K.; McCain, Thomas A.

Taking the viewpoint of the receiver, this paper explores some differences between interpersonal transactions people have with each other and with the mass media. After addressing an orientation held by many communication scholars that the process of mass communication and interpersonal communication differ only in degree, the paper focuses on a…

Mediatizing Higher Education Policies: Discourses about Quality Education in the Media

ERIC Educational Resources Information Center

Cabalin, Cristian

2015-01-01

This article presents a critical-political discourse analysis of the media debate over quality assurance in higher education, which occurred in Chile after the 2011 student movement. Students criticized the privatization of higher education and the multiple flaws of this sector, which included corruption scandals during the process of quality…

Implementation of Multimedia Technologies into the Educational Process in Developed Countries

ERIC Educational Resources Information Center

Sukhomudrenko, Yuliia

2016-01-01

In the context of information technology development of a society requirements to professional training of teachers and forming of their competencies are increasing. The need for provision of media education consistent with challenges of an information society, organization of pedagogues' in the field of media education training, based on media…

Digital Media Production to Support Literacy for Secondary Students with Diverse Learning Abilities

ERIC Educational Resources Information Center

Leach, April Marie

2017-01-01

Producing digital media is a hands-on, inquiry-based mindful process that naturally embeds Universal Design for Learning (UDL) principles into literacy instruction, providing options for learning and assessment for a wide array of students with diverse learning abilities. Video production learning experiences acknowledge the cognitive talents of…

Developing a Social Media and Marketing Course

ERIC Educational Resources Information Center

Faulds, David J.; Mangold, W. Glynn

2014-01-01

This paper describes the process used and experiences gained in developing a social media and marketing course. As the first known paper on this topic appearing in the marketing education literature, the paper provides educators with a framework for developing similar courses. The course was developed using a sound instructional design model, the…

Through the Lens of a Tetrad: Visual Storytelling on Tablets

ERIC Educational Resources Information Center

McEwen, Rhonda; Zbitnew, Anne; Chatsick, Jennifer

2016-01-01

What are the boundaries between traditional and new media, between ability and disability, and between the artist and the processes for making art? This article reports findings from a study of tablet devices as media for self-expression and visual storytelling by adults with intellectual disabilities and examined whether or not art-making…

Developing the Second Language Writing Process through Social Media-Based Interaction Tasks

ERIC Educational Resources Information Center

Gómez, Julian Esteban Zapata

2015-01-01

This paper depicts the results from a qualitative research study focused on finding out the effect of interaction through social media on the development of second language learners' written production from a private school in Medellín, Antioquia, Colombia. The study was framed within concepts such as "social interaction," "digital…

Socializing Audiences--or Television? On Theory and Practice of Media Socialization in Yugoslavia.

ERIC Educational Resources Information Center

Splichal, Slavko

Socialization is generally considered the process of making individuals "fit" for living in society. To understand the specific social role of the media, their particular place among agencies of socialization, and the real possibilities of a democratization of mass communication, the question should be inverted to ask, "Who makes…

The IYA2009 in Europe at JENAM 2009

NASA Astrophysics Data System (ADS)

Robson, I.

2009-06-01

Professional astronomers often have to interact with journalists and other representatives of the media. This brings a whole host of difficulties, but the process can be beneficial for all parties. The author, being from the Vatican Observatory, is no stranger to media interviews and some hard-learned lessons are passed on here.

The Use of Yammer in Higher Education: An Exploratory Study

ERIC Educational Resources Information Center

Pinto, Mary Beth

2014-01-01

Organizations depend more than ever on the ability of their workforce to master the means to most effectively communicate and engage in online collaboration activities. Social media technologies are being called on to help facilitate that process in organizations today. One social media technology that is making inroads into numerous industries,…

Sites of Possibility: Applied Theatre and Digital Storytelling with Youth

ERIC Educational Resources Information Center

Alrutz, Megan

2013-01-01

As a process for engaging marginalised voices in the social/cultural economy of the media, digital storytelling has garnered much attention from media artists, community organisers and scholars since the early 1990s. The practice of digital storytelling, or the making and sharing of personal narratives through recorded voice-overs, digital…

Seeking an Online Social Media Radar

ERIC Educational Resources Information Center

ter Veen, James

2014-01-01

Purpose: The purpose of this paper is to explore how the application of Systems Engineering tools and techniques can be applied to rapidly process and analyze the vast amounts of data present in social media in order to yield practical knowledge for Command and Control (C2) systems. Design/methodology/approach: Based upon comparative analysis of…

Mass Media Values and the Future of Education.

ERIC Educational Resources Information Center

Pulliam, John D.

The paper focuses on the impact of mass media, especially television, on the educational process and outlines implications for the future. Studies point out that children view an average of 8,000 hours of television annually between ages three and five. Positive effects include increase in the vocabulary of young children, a better appreciation of…

Active Learning in Secondary Schools: Educational Media and Technology.

ERIC Educational Resources Information Center

Page, Marilyn

The incorporation of media and technology into the classroom does not ensure the enhancement of student learning. Research has shown that students learn more through active participation in their own learning process. From 1984 to 1987, a teacher's secondary social studies students were actively involved in the National History Day Program (NHDP),…

Producing Educational Learning Media Resources for Karen Children

ERIC Educational Resources Information Center

Chutataweesawas, Sirikoy; Tanchareon, Sumate; Wilang, Jeffrey Dawala

2018-01-01

To create appropriate educational learning media resources for the Karen community in Chiang Mai, Thailand, a project called 'The Research and Development Process of Multimedia Learning Resources' was initiated by a group of researchers from a top-ranked university in Bangkok. It consisted of picture books and an animation film derived from oral…

Game Creation in Youth Media and Information Literacy Education

ERIC Educational Resources Information Center

Costa, Conceição; Tyner, Kathleen; Henriques, Sara; Sousa, Carla

2018-01-01

This article presents the preliminary findings of GamiLearning (2015-2018), a research project that aims to promote critical and participative dimensions of Media and Information Literacy (MIL) in children through the creation of digital games. The project presents an innovative approach by arguing that MIL can be promoted through the process of…

Rethinking the relationship between medicine and media: two examples from Croatia.

PubMed

Jergović, Blanka

2004-08-01

The communication between medicine and media is an important component within the complex process of changes in post-communist transition countries. It reflects not only organizational and legislative state of the society but its cultural adaptability and character. In that respect, media communication could be a tool for shifting the existing attitudes to innovative evaluation of physician's responsibility. Adapting to the democratic society necessitates more effective communication and improvement of all components of communication process: medicine, media, and the public sphere. Existing communication strategies in Croatia were recognized as inefficient and proved damaging for the health care system and society in general. As a demonstration, two representative examples were analyzed in this paper: the case of deaths related to Baxter dialyzers, and the case of pediatric cardiac surgery at the Zagreb University Hospital Center. The cases illustrate the lack of communication within the medical profession and physicians with the executive government, and the public. There is a great need for more effective communication and skillful professionals in transition countries. The future concept of the communication should be characterized by contextual and "cross-talk' approach.

SNR improvement by variation of recording and media parameters for a HAMR exchange coupled composite media

NASA Astrophysics Data System (ADS)

Natekar, N. A.; Liu, Zengyuan; Hernandez, Stephanie; Victora, R. H.

2018-05-01

An exchange coupled composite media structure proposed previously seems to address both the issue of Tc variation in FePt as well as poor SNR/User Density during the HAMR process. Here we examine a thinner 3-6 nm structure that is likely easier to fabricate than the previous 13.5 nm thick structure. We find that increasing the damping within the write (superparamagnetic) layer and introducing intergranular exchange within the grains in the write layer are both successful approaches to improve the recorded SNR. Ensemble waveform analysis that allows the breakdown of the total SNR into transition SNR (due to AC noise) and remanence SNR (due to DC noise) helps identify the leading causes for this SNR improvement. Further studies indicate that varying the peak heat spot temperature in the HAMR write process is also a successful approach for improving the recorded SNR. This lends credence to the idea that a thinner composite media may still be used successfully to realize significant enhancements of SNR and the corresponding user density.

KENNEDY SPACE CENTER, FLA. - NASA Vehicle Manager Scott Thurston (right) talks to the media in the Orbiter Processing Facility. The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System. will be available to discuss the work and answer questions.

NASA Image and Video Library

2003-09-26

KENNEDY SPACE CENTER, FLA. - NASA Vehicle Manager Scott Thurston (right) talks to the media in the Orbiter Processing Facility. The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System. will be available to discuss the work and answer questions.

A method for moisture measurement in porous media based on epithermal neutron scattering.

PubMed

El Abd, A

2015-11-01

A method for moisture measurement in porous media was proposed. A wide beam of epithermal neutrons was obtained from a Pu-Be neutron source immersed in a cylinder made of paraffin wax. (3)He detectors (four or six) arranged in the backward direction of the incident beam were used to record scattered neutrons from investigated samples. Experiments of water absorption into clay and silicate bricks, and a sand column were investigated by neutron scattering. While the samples were absorbing water, scattered neutrons were recorded from fixed positions along the water flow direction. It was observed that, at these positions scattered neutrons increase as the water uptake increases. Obtained results are discussed in terms of the theory of macroscopic flow in porous media. It was shown that, the water absorption processes were Fickian and non Fickian in the sand column and brick samples, respectively. The advantages of applying the proposed method to study fast as well as slow flow processes in porous media are discussed. Copyright © 2015 Elsevier Ltd. All rights reserved.

Reinforcing Spirals Model: Conceptualizing the Relationship Between Media Content Exposure and the Development and Maintenance of Attitudes

PubMed Central

Slater, Michael D.

2014-01-01

The Reinforcing Spirals Model (RSM, Citation Withheld) has two primary purposes. First, the RSM provides a general framework for conceptualizing media use as part of a dynamic, endogenous process combining selective exposure and media effects that may be drawn on by theorists concerned with a variety of social processes and effects. Second, the RSM utilizes a systems-theory perspective to describe how patterns of mediated and interpersonal communication contribute to the development and maintenance of social identities and ideology as well as more transient attitudes and related behaviors, and how those outcomes may influence subsequent media use. The RSM suggests contingencies that may lead to homeostasis or encourage certain individuals or groups to extreme polarization of such attitudes. In addition, the RSM proposes social cognitive mechanisms that may be responsible for attitude maintenance and reinforcement. This article discusses empirical progress in testing the model, addresses misconceptions that have arisen, and provides elaborated illustrations of the model. The article also identifies potentially fruitful directions for further conceptual development and empirical testing of the RSM. PMID:26366124

KENNEDY SPACE CENTER, FLA. - Local Central Florida television reporters Phil Robertson (left), with WFTV, and Dan Billow (right), with WESH, tape commentaries after a media tour of the Orbiter Processing Facility. The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System.

NASA Image and Video Library

2003-09-26

KENNEDY SPACE CENTER, FLA. - Local Central Florida television reporters Phil Robertson (left), with WFTV, and Dan Billow (right), with WESH, tape commentaries after a media tour of the Orbiter Processing Facility. The media was invited to see the orbiter Atlantis as it is being prepared for Return to Flight. Both local and national reporters representing print and TV networks were able to see work in progress on Atlantis, including the reinstallation of the Reinforced Carbon-Carbon panels on the orbiter’s wing leading edge; wiring inspections; and checks of the engines in the Orbital Maneuvering System.

Trust, but verify: social media models for disaster management.

PubMed

Mehta, Amisha M; Bruns, Axel; Newton, Judith

2017-07-01

A lack of trust in the information exchanged via social media may significantly hinder decisionmaking by community members and emergency services during disasters. The need for timely information at such times, though, challenges traditional ways of establishing trust. This paper, building on a multi-year research project that combined social media data analysis and participant observation within an emergency management organisation and in-depth engagement with stakeholders across the sector, pinpoints and examines assumptions governing trust and trusting relationships in social media disaster management. It assesses three models for using social media in disaster management-information gathering, quasi-journalistic verification, and crowdsourcing-in relation to the guardianship of trust to highlight the verification process for content and source and to identify the role of power and responsibilities. The conclusions contain important implications for emergency management organisations seeking to enhance their mechanisms for incorporating user-generated information from social media sources in their disaster response efforts. © 2017 The Author(s). Disasters © Overseas Development Institute, 2017.

The role of evidence-based media advocacy in the promotion of tobacco control policies.

PubMed

Lane, Ch'uyasonqo H; Carter, Marina I

2012-06-01

This article discusses the role of evidence-based media advocacy in the promotion of tobacco control policies. Evidence is a driving force for campaigns seeking to implement a tobacco control policy. An effective campaign is based in evidence that demonstrates why a policy should be implemented, and what the potential benefits are. Media advocacy is the process of disseminating information through the communications media where the aim is to effect action, such as a change of policy, or to alter the public's view of an issue. Discussion focuses on: 1) the importance of, and methods for, collecting and communicating evidence and information to make it clear and usable for legislators, the media, and the public; and 2) the role of earned and paid media in advancing tobacco control issues. The discussion is made within the context of a specific advocacy example; in this case the 2010 campaign to increase the tobacco tax in Mexico.

Social comparisons with media images are cognitively inefficient even for women who say they feel pressure from the media.

PubMed

Want, Stephen C; Saiphoo, Alyssa

2017-03-01

The present study investigated whether social comparisons with media images are cognitively efficient (demanding minimal mental effort) or cognitively effortful processes, in a sample of female undergraduate students (N=151) who reported feeling pressure from the media regarding their appearance. Two groups were shown 12 images of thin and attractive female models. One group was asked to memorize a complex 8-digit number during exposure to the images (Cognitively Busy condition), while the other memorized a much simpler number (Free View condition). A third group (Control condition) viewed images without people. Participants in the Free View condition demonstrated significantly increased negative mood and lowered appearance satisfaction from before to after exposure, while participants in the Cognitively Busy and Control conditions did not. We argue that these results suggest social comparisons with media images are at least somewhat cognitively effortful even among women who say they feel pressure from the media. Copyright © 2016 Elsevier Ltd. All rights reserved.

Community-Based Participatory Research in an Obesity Prevention Media Campaign for Mexican Americans: Tu Salud ¡Si Cuenta!

PubMed Central

Reininger, Belinda M.; Barroso, Cristina S.; Mitchell-Bennett, Lisa; Cantu, Ethel; Fernandez, Maria E.; Gonzalez, Dora Alicia; Chavez, Marge; Freeberg, Diamantina; McAlister, Alfred

2009-01-01

Background and Methods To address obesity and related morbidities, community-based participatory research (CBPR) strategies were employed to design / evaluate a Spanish language media campaign promoting physical activity and healthful food choices among Mexican Americans. Qualitative evaluation strategies including content analyses on types and focus of media messages were conducted. Focus groups assessed appeal and trustworthiness of messages. Results All media campaign products feature role models and experts. Campaign messages primarily (98%) appear in TV morning show segments. Newsletters present individual and family role model stories. Majority of newsletters (68%) are distributed through churches and “promotora” outreach efforts. Conclusions CBPR lends itself to the selection and tailoring of evidence-based media campaigns. Moreover, CBPR guidance resulted in media messages that are credible and appealing to audience. Process evaluation strategies that gather information from the community provide solid evidence for how to modify the campaign to best meet audience expectations. PMID:19131541

Back to the future: a history of ACOG in social media's golden age.

PubMed

DeNicola, Nathaniel; Good, Meadow; Newton, Luke

2014-12-01

To chronicle a medical professional society's adoption of innovation and to describe themes pertinent to the adoption. In September 2013, the American College of Obstetricians and Gynecologists (ACOG) published a Committee Opinion on Toxic Environmental Agents that included an infographic and social media awareness campaign. To date, it claims one of the highest total audience reaches for an ACOG Facebook post reaching nearly 18 000 viewers. Despite this powerful promise, ACOG's timely and successful social media campaign did not always appear an obvious strategy. Although social media took hold of popular culture in the early 2000s, social media's professional etiquette remained uncharted and rife, with cautionary tales through the latter half of the decade. Through a thoughtful and dedicated process, the ACOG Fellow and Junior Fellow leadership partnered to navigate the appropriate balance of innovation and prudence that propelled ACOG into social media's golden age, and paved the pathway for more progressive institutional changes.

Optimization of isolation and cultivation of bacterial endophytes through addition of plant extract to nutrient media

PubMed Central

Eevers, N; Gielen, M; Sánchez-López, A; Jaspers, S; White, J C; Vangronsveld, J; Weyens, N

2015-01-01

Many endophytes have beneficial effects on plants and can be exploited in biotechnological applications. Studies hypothesize that only 0.001–1% of all plant-associated bacteria are cultivable. Moreover, even after successful isolations, many endophytic bacteria often show reduced regrowth capacity. This research aimed to optimize isolation processes and culturing these bacteria afterwards. We compared several minimal and complex media in a screening. Beside the media themselves, two gelling agents and adding plant extract to media were investigated to enhance the number and diversity of endophytes as well as the growth capacity when regrown after isolation. In this work, 869 medium delivered the highest numbers of cultivable bacteria, as well as the highest diversity. When comparing gelling agents, no differences were observed in the numbers of bacteria. Adding plant extract to the media lead to a slight increase in diversity. However, when adding plant extract to improve the regrowth capacity, sharp increases of viable bacteria occurred in both rich and minimal media. PMID:25997013

Noninvasive optical coherence tomography monitoring of structure and hydration changes of human corneas in different preservation media

NASA Astrophysics Data System (ADS)

Wu, Yicong; Clarke, Dominic; Mathew, Aby; Nicoud, Ian; Li, Xingde

2011-02-01

The influence of different tissue preservation (a test solution under development and a standard storage solution) on human cornea morphology, refractive index and hydration was assessed noninvasively by ultrahigh-resolution optical coherence tomography (OCT) over time. For 28 days' or 15 days' storage in the preservation media, corneas in the two media exhibited different structural changes with different onset times including epithelial desquamation, edema-induced cornea thickening and change in tissue refractive index. It was found that the variation of the group refractive index over time was only about 2%, while 25% variation of hydration was observed in the storage and subsequent return to normothermic conditions in both preservation media. The results suggest the two media involved different but correlated preservation mechanisms. This study demonstrates that the noncontact, noninvasive, and high-resolution OCT is a powerful tool for noninvasive characterization of tissue morphological changes and hydration process and for assessment of the effects of preservation media on stored tissue integrity. Engineers.

Psychiatry and online social media: potential, pitfalls and ethical guidelines for psychiatrists and trainees.

PubMed

Frankish, Katherine; Ryan, Christopher; Harris, Anthony

2012-06-01

This paper proposes ethical guidelines for psychiatrists and psychiatry trainees when interacting with social media. A three-stage process was followed in the development of these guidelines. A literature review provided situations and possible broad rules as to how social media could be ethically engaged. A roundtable discussion by a panel of invited psychiatrists, psychiatry trainees, psychologists, e-health practitioners, lawyers and consumers was held to discuss the situations and to better formulate the ethical principles upon which psychiatrists could act. These vignettes and principles were then broadly discussed at a seminar held at the 2011 RANZCP Congress. Finally, this paper was circulated to the original invitees for final comment. A set of recommendations for working with social media were developed. The new social media provides important avenues for communication, education and treatment. These avenues pose ethical and practical dilemmas that can be resolved by the application of established ethical principles. Practical recommendations for navigating social media are proposed.

Fingering, Fracturing and Dissolution in Granular Media

NASA Astrophysics Data System (ADS)

Juanes, R.; Cueto-Felgueroso, L.; Trojer, M.; Zhao, B.; Fu, X.

2014-12-01

The displacement of one fluid by another in a porous medium give rise to a rich variety of hydrodynamic instabilities. Beyond their scientific value as fascinating models of pattern formation, unstable porous-media flows are essential to understanding many natural and man-made processes, including water infiltration in the vadose zone, carbon dioxide injection and storage in deep saline aquifers, and hydrocarbon recovery. Here, we review the pattern-selection mechanisms of a wide spectrum of porous-media flows that develop hydrodynamic instabilities, discuss their origin and the mathematical models that have been used to describe them. We point out many challenges that remain to be resolved in the context of multiphase flows, and suggest modeling approaches that may offer new quantitative understanding. In particular, I will present experimental, theoretical and computational results for: (1) fluid spreading under partial wetting; (2) the impact of wettability on viscously unstable multiphase flow in porous media; (3) capillary fracturing in granular media; and (4) rock dissolution during convective mixing in porous media.

The Influence of Media Violence on Youth.

PubMed

Anderson, Craig A; Berkowitz, Leonard; Donnerstein, Edward; Huesmann, L Rowell; Johnson, James D; Linz, Daniel; Malamuth, Neil M; Wartella, Ellen

2003-12-01

Research on violent television and films, video games, and music reveals unequivocal evidence that media violence increases the likelihood of aggressive and violent behavior in both immediate and long-term contexts. The effects appear larger for milder than for more severe forms of aggression, but the effects on severe forms of violence are also substantial (r = .13 to .32) when compared with effects of other violence risk factors or medical effects deemed important by the medical community (e.g., effect of aspirin on heart attacks). The research base is large; diverse in methods, samples, and media genres; and consistent in overall findings. The evidence is clearest within the most extensively researched domain, television and film violence. The growing body of video-game research yields essentially the same conclusions. Short-term exposure increases the likelihood of physically and verbally aggressive behavior, aggressive thoughts, and aggressive emotions. Recent large-scale longitudinal studies provide converging evidence linking frequent exposure to violent media in childhood with aggression later in life, including physical assaults and spouse abuse. Because extremely violent criminal behaviors (e.g., forcible rape, aggravated assault, homicide) are rare, new longitudinal studies with larger samples are needed to estimate accurately how much habitual childhood exposure to media violence increases the risk for extreme violence. Well-supported theory delineates why and when exposure to media violence increases aggression and violence. Media violence produces short-term increases by priming existing aggressive scripts and cognitions, increasing physiological arousal, and triggering an automatic tendency to imitate observed behaviors. Media violence produces long-term effects via several types of learning processes leading to the acquisition of lasting (and automatically accessible) aggressive scripts, interpretational schemas, and aggression-supporting beliefs about social behavior, and by reducing individuals' normal negative emotional responses to violence (i.e., desensitization). Certain characteristics of viewers (e.g., identification with aggressive characters), social environments (e.g., parental influences), and media content (e.g., attractiveness of the perpetrator) can influence the degree to which media violence affects aggression, but there are some inconsistencies in research results. This research also suggests some avenues for preventive intervention (e.g., parental supervision, interpretation, and control of children's media use). However, extant research on moderators suggests that no one is wholly immune to the effects of media violence. Recent surveys reveal an extensive presence of violence in modern media. Furthermore, many children and youth spend an inordinate amount of time consuming violent media. Although it is clear that reducing exposure to media violence will reduce aggression and violence, it is less clear what sorts of interventions will produce a reduction in exposure. The sparse research literature suggests that counterattitudinal and parental-mediation interventions are likely to yield beneficial effects, but that media literacy interventions by themselves are unsuccessful. Though the scientific debate over whether media violence increases aggression and violence is essentially over, several critical tasks remain. Additional laboratory and field studies are needed for a better understanding of underlying psychological processes, which eventually should lead to more effective interventions. Large-scale longitudinal studies would help specify the magnitude of media-violence effects on the most severe types of violence. Meeting the larger societal challenge of providing children and youth with a much healthier media diet may prove to be more difficult and costly, especially if the scientific, news, public policy, and entertainment communities fail to educate the general public about the real risks of media-violence exposure to children and youth. © 2003 Association for Psychological Science.

Perceived realism moderates the relation between sexualized media consumption and permissive sexual attitudes in Dutch adolescents.

PubMed

Baams, Laura; Overbeek, Geertjan; Dubas, Judith Semon; Doornwaard, Suzan M; Rommes, Els; van Aken, Marcel A G

2015-04-01

This study examined whether the development of sexualized media consumption and permissive sexual attitudes would be more strongly interrelated when adolescents perceived sexualized media images as highly realistic. We used data from a three-wave longitudinal sample of 444 Dutch adolescents aged 13-16 years at baseline. Results from parallel process latent growth modeling multigroup analyses showed that higher initial levels of sexualized media consumption were associated with higher initial level of permissive sexual attitudes. Moreover, increases of sexualized media consumption over time were associated with increases of permissive sexual attitudes over time. Considering the moderation by perceived realism, we found these effects only for those who perceived sexualized media as more realistic. Findings for male and female adolescents were similar except for the relations between initial levels and subsequent development. Among male adolescents who perceived sexualized media images to be realistic, higher initial levels of permissive sexual attitudes were related to subsequent less rapid development of sexualized media consumption. For male adolescents who perceived sexualized media to be less realistic, higher initial levels of sexualized media consumption were related to a subsequent less rapid development of permissive sexual attitudes. These relations were not found for female adolescents. Overall, our results suggest that, in male and female adolescents, those with a high level of perceived realism showed a correlated development of sexualized media consumption and permissive sexual attitudes. These findings point to a need for extended information on how to guide adolescents in interpreting and handling sexualized media in everyday life.

Sexual Media and Childhood Well-being and Health.

PubMed

Collins, Rebecca L; Strasburger, Victor C; Brown, Jane D; Donnerstein, Edward; Lenhart, Amanda; Ward, L Monique

2017-11-01

Sexual content is highly prevalent in traditional media, and portrayals rarely depict the responsibilities and risks (eg, condom use, pregnancy) associated with sexual activity. Exposure to such content is linked with shifts in attitudes about sex and gender, earlier progression to sexual activity, pregnancy, and sexually transmitted infection among adolescents. However, little information is available about moderators and mediators of these effects. We also know little about digital media, their sex-related content, and their potential influence on youth. Data from a few studies of older youth indicate that sexual displays on social media sites are related to problematic beliefs and behaviors among those who post this content and among viewers. Online pornography appears to be more problematic for youth than off-line sources. Given the vast and increasing amount of time youth spend online and their developmental openness to influence, more research attention to digital sexual media is needed. Those who undertake this work should identify potential negative consequences of use and opportunities to improve adolescent sexual health through digital media. Studies of on- and off-line media in which researchers examine younger media audiences, identify processes explaining sexual media effects on behavior, and moderators of effects are needed. Such studies could be used to inform interventions to reduce negative outcomes and increase positive media effects. Policy makers should stimulate the development of such interventions, including tools to help parents identify and manage negative media influences on their children's sexual well-being and development and dissemination of innovative media literacy programs related to sexual health. Copyright © 2017 by the American Academy of Pediatrics.

SRB Processing Facilities Media Event

NASA Image and Video Library

2016-03-01

At the Rotation, Processing and Surge Facility (RPSF) at NASA’s Kennedy Space Center in Florida, members of the news media watch as cranes are used to lift one of two pathfinders, or test versions, of solid rocket booster segments for NASA’s Space Launch System rocket. The Ground Systems Development and Operations Program and Jacobs Engineering, on the Test and Operations Support Contract, are preparing the booster segments, which are inert, for a series of lifts, moves and stacking operations to prepare for Exploration Mission-1, deep-space missions and the journey to Mars.