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Sample records for affective picture system

  1. The Emotional Experience of People with Intellectual Disability: An Analysis Using the International Affective Pictures System

    Science.gov (United States)

    Bermejo, Belen G.; Mateos, Pedro M.; Sanchez-Mateos, Juan Degado

    2014-01-01

    The present study provides information on the emotional experience of people with intellectual disability. To evaluate this emotional experience, we have used the International Affective Pictures System (IAPS). The most important result from this study is that the emotional reaction of people with intellectual disability to affective stimuli is…

  2. Adaptation of the International Affective Picture System (IAPS) for European Portuguese.

    Science.gov (United States)

    Soares, Ana Paula; Pinheiro, Ana P; Costa, Ana; Frade, Carla Sofia; Comesaña, Montserrat; Pureza, Rita

    2015-12-01

    This study presents the results of the adaptation of the International Affective Picture System (IAPS) for European Portuguese (EP). Following the original procedure of Lang et al., 2000 native speakers of EP rated the 1,182 pictures of the last version of the IAPS set on the three affective dimensions of valence, arousal, and dominance, using the Self-Assessment Manikin (SAM). Results showed that the normative values of the IAPS for EP are properly distributed in the affective space of valence and arousal, showing the typical boomerang-shaped distribution observed in previous studies. Results also point to important differences in the way Portuguese females and males react to affective pictures that should be taken into consideration when planning and conducting research with Portuguese samples. Furthermore, the results from the cross-cultural comparisons between the EP ratings and the ratings from the American, Spanish, Brazilian, Belgian, Chilean, Indian, and Bosnian-Herzegovinian standardizations, showed that in spite of the fact that IAPS stimuli elicited affective responses that are similar across countries and cultures (at least in Western cultures), there are differences in the way Portuguese individuals react to IAPS pictures that strongly recommend the use of the normative values presented in this work. They can be downloaded as a supplemental archive at http://brm.psychonomic-journals.org/content/supplemental or at http://p-pal.di.uminho.pt/about/databases.

  3. Adaptation of the International Affective Picture System (IAPS) for European Portuguese.

    Science.gov (United States)

    Soares, Ana Paula; Pinheiro, Ana P; Costa, Ana; Frade, Carla Sofia; Comesaña, Montserrat; Pureza, Rita

    2015-12-01

    This study presents the results of the adaptation of the International Affective Picture System (IAPS) for European Portuguese (EP). Following the original procedure of Lang et al., 2000 native speakers of EP rated the 1,182 pictures of the last version of the IAPS set on the three affective dimensions of valence, arousal, and dominance, using the Self-Assessment Manikin (SAM). Results showed that the normative values of the IAPS for EP are properly distributed in the affective space of valence and arousal, showing the typical boomerang-shaped distribution observed in previous studies. Results also point to important differences in the way Portuguese females and males react to affective pictures that should be taken into consideration when planning and conducting research with Portuguese samples. Furthermore, the results from the cross-cultural comparisons between the EP ratings and the ratings from the American, Spanish, Brazilian, Belgian, Chilean, Indian, and Bosnian-Herzegovinian standardizations, showed that in spite of the fact that IAPS stimuli elicited affective responses that are similar across countries and cultures (at least in Western cultures), there are differences in the way Portuguese individuals react to IAPS pictures that strongly recommend the use of the normative values presented in this work. They can be downloaded as a supplemental archive at http://brm.psychonomic-journals.org/content/supplemental or at http://p-pal.di.uminho.pt/about/databases. PMID:25381023

  4. Applicability of the International Affective Picture System in Chinese older adults: A validation study.

    Science.gov (United States)

    Gong, Xianmin; Wang, Dahua

    2016-06-01

    The International Affective Picture System (IAPS) is a standardized tool widely used to induce emotions in psychological studies. The present study examined the reliability and validity of the IAPS in Chinese older adults. A sample consisting of 126 Chinese older adults (86 females; aged 67.3 ± 4.96 years; 13.2 ± 2.75 years of education) was recruited to rate valence and arousal for 942 IAPS pictures. The results showed a satisfactory reliability and validity of the IAPS among these participants. The reliability was supported by high internal consistency and low inter-individual variance of participants' ratings; the validity was supported by high similarities (in rating scores and in the distribution of the pictures in the valence-arousal affective space) and small differences (in mean ratings) between Chinese and German older adults. In conclusion, the study adds supportive evidence to the cross-cultural validity of the IAPS in older adults, and provides a set of normative emotional ratings that could be adopted as a criterion in the selection of emotional pictures in future studies engaging Chinese older adults. Comparison of the IAPS ratings across cultures and ages is also discussed. PMID:27256203

  5. Erotic subset for the Nencki Affective Picture System (NAPS ERO): cross-sexual comparison study.

    Science.gov (United States)

    Wierzba, Małgorzata; Riegel, Monika; Pucz, Anna; Leśniewska, Zuzanna; Dragan, Wojciech Ł; Gola, Mateusz; Jednoróg, Katarzyna; Marchewka, Artur

    2015-01-01

    Research on the processing of sexual stimuli has proved that such material has high priority in human cognition. Yet, although sex differences in response to sexual stimuli were extensively discussed in the literature, sexual orientation was given relatively little consideration, and material suitable for relevant research is difficult to come by. With this in mind, we present a collection of 200 erotic images, accompanied by their self-report ratings of emotional valence and arousal by homo- and heterosexual males and females (n = 80, divided into four equal-sized subsamples). The collection complements the Nencki Affective Picture System (NAPS) and is intended to be used as stimulus material in experimental research. The erotic images are divided into five categories, depending on their content: opposite-sex couple (50), male couple (50), female couple (50), male (25) and female (25). Additional 100 control images from the NAPS depicting people in a non-erotic context were also used in the study. We showed that recipient sex and sexual orientation strongly influenced the evaluation of erotic content. Thus, comparisons of valence and arousal ratings in different subject groups will help researchers select stimuli set for the purpose of various experimental designs. To facilitate the use of the dataset, we provide an on-line tool, which allows the user to browse the images interactively and select proper stimuli on the basis of several parameters. The NAPS ERO image collection together with the data are available to the scientific community for non-commercial use at http://naps.nencki.gov.pl. PMID:26441715

  6. Um estudo dos relatos afetivos subjetivos a estímulos do International Affective Picture System em uma amostra geriátrica brasileira Subjective affective ratings to photographic stimuli of the International Affective Picture System in a Brazilian elderly sample

    Directory of Open Access Journals (Sweden)

    Weyler Galvão Porto

    2008-08-01

    Full Text Available INTRODUÇÃO: A literatura científica indica a possibilidade de a percepção da emoção e a formação da memória emocional serem discordantes entre jovens e idosos. A mesma é pobre ao explorar essa possibilidade. Neste estudo, relatamos os resultados obtidos em um experimento-piloto com uma amostra de idosos brasileiros, que classificaram subjetivamente, através da escala Self Assessment Manikin, imagens oriundas do International Affective Picture System. MÉTODO: Quarenta e oito idosos voluntários da Universidade Aberta da Terceira Idade, saudáveis clínica e cognitivamente, avaliaram o caráter alertante e a valência afetiva de 71 imagens do International Affective Picture System, aleatoriamente escolhidas. RESULTADOS: O grau de alerta reportado por idosos diante de um estímulo emocional é tanto maior quanto menor o prazer provocado por essa imagem-estímulo, resultando na existência de uma forte correlação negativa (r = 0,93 entre o grau de alerta e o estímulo desprazeroso. Em uma comparação do acima obtido com outro experimento normativo semelhante feito com jovens brasileiros e americanos, apontou-se para uma possível diferença cultural na forma de relatar subjetivamente um estímulo emocional. CONCLUSÕES: Os resultados obtidos com esta amostra estudada sugerem que pode existir uma diferença nos relatos afetivos entre os jovens e idosos, onde uma normatização do International Affective Picture System para uma amostra maior, representativa da população de idosos, seria útil para responder esta questão.INTRODUCTION: The scientific literature points to a possible bias in the form perception and emotional memory are constructed when elderly and young individuals are compared. However, this possibility is underexplored. This paper presents the results obtained from a pilot study based on an elderly emotional subjective report after evaluation using the International Affective Picture System images and Self Assessment

  7. The Picture Exchange Communication System: Digital Photographs versus Picture Symbols

    Science.gov (United States)

    Jonaitis, Carmen

    2011-01-01

    The Picture Exchange Communication System (PECS) is an augmentative and alternative system (AAC) used to improve and increase communication for children with Autism Spectrum Disorder (ASD) and other developmental disorders. Research addressing the efficacy of this system is increasing; however, there is limited information published that evaluates…

  8. Affective picture processing: An integrative review of ERP findings

    OpenAIRE

    Olofsson, Jonas K.; Nordin, Steven; Sequeira, Henrique; Polich, John

    2007-01-01

    The review summarizes and integrates findings from 40 years of event-related potential (ERP) studies using pictures that differ in valence (unpleasant-to-pleasant) and arousal (low-to-high) and that are used to elicit emotional processing. Affective stimulus factors primarily modulate ERP component amplitude, with little change in peak latency observed. Arousal effects are consistently obtained, and generally occur at longer latencies. Valence effects are inconsistently reported at several la...

  9. Lying about the valence of affective pictures: an fMRI study.

    Directory of Open Access Journals (Sweden)

    Tatia M C Lee

    Full Text Available The neural correlates of lying about affective information were studied using a functional magnetic resonance imaging (fMRI methodology. Specifically, 13 healthy right-handed Chinese men were instructed to lie about the valence, positive or negative, of pictures selected from the International Affective Picture System (IAPS while their brain activity was scanned by a 3T Philip Achieva scanner. The key finding is that the neural activity associated with deception is valence-related. Comparing to telling the truth, deception about the valence of the affectively positive pictures was associated with activity in the inferior frontal, cingulate, inferior parietal, precuneus, and middle temporal regions. Lying about the valence of the affectively negative pictures, on the other hand, was associated with activity in the orbital and medial frontal regions. While a clear valence-related effect on deception was observed, common neural regions were also recruited for the process of deception about the valence of the affective pictures. These regions included the lateral prefrontal and inferior parietal regions. Activity in these regions has been widely reported in fMRI studies on deception using affectively-neutral stimuli. The findings of this study reveal the effect of valence on the neural activity associated with deception. Furthermore, the data also help to illustrate the complexity of the neural mechanisms underlying deception.

  10. Affective Pictures and the Open Library of Affective Foods (OLAF): Tools to Investigate Emotions toward Food in Adults

    Science.gov (United States)

    Guerra, Pedro; Versace, Francesco; Rodríguez-Ruiz, Sonia; Fernández-Santaella, M. Carmen

    2016-01-01

    Recently, several sets of standardized food pictures have been created, supplying both food images and their subjective evaluations. However, to date only the OLAF (Open Library of Affective Foods), a set of food images and ratings we developed in adolescents, has the specific purpose of studying emotions toward food. Moreover, some researchers have argued that food evaluations are not valid across individuals and groups, unless feelings toward food cues are compared with feelings toward intense experiences unrelated to food, that serve as benchmarks. Therefore the OLAF presented here, comprising a set of original food images and a group of standardized highly emotional pictures, is intended to provide valid between-group judgments in adults. Emotional images (erotica, mutilations, and neutrals from the International Affective Picture System/IAPS) additionally ensure that the affective ratings are consistent with emotion research. The OLAF depicts high-calorie sweet and savory foods and low-calorie fruits and vegetables, portraying foods within natural scenes matching the IAPS features. An adult sample evaluated both food and affective pictures in terms of pleasure, arousal, dominance, and food craving, following standardized affective rating procedures. The affective ratings for the emotional pictures corroborated previous findings, thus confirming the reliability of evaluations for the food images. Among the OLAF images, high-calorie sweet and savory foods elicited the greatest pleasure, although they elicited, as expected, less arousal than erotica. The observed patterns were consistent with research on emotions and confirmed the reliability of OLAF evaluations. The OLAF and affective pictures constitute a sound methodology to investigate emotions toward food within a wider motivational framework. The OLAF is freely accessible at digibug.ugr.es. PMID:27513636

  11. Breathing and affective picture processing across the adult lifespan.

    Science.gov (United States)

    Gomez, Patrick; Filippou, Dimitra; Pais, Bruno; von Gunten, Armin; Danuser, Brigitta

    2016-09-01

    The present study investigated differences between healthy younger, middle-aged, and older adults in their respiratory responses to pictures of different valence and arousal. Expiratory time shortened and end-tidal PCO2 decreased with increasing arousal in all age groups; yet, compared to younger adults, older adults' overall change from baseline was smaller for expiratory time and larger for end-tidal PCO2. Contrary to their younger counterparts, older adults' inspiratory time did not shorten with increasing arousal. Inspiratory duty cycle did not covary with affective ratings for younger adults, increased with unpleasantness for middle-aged adults, and increased with arousal for older adults. Thoracic breathing increased with increasing unpleasantness only among older adults. Age had no effects on mean inspiratory flow and minute ventilation, which both augmented as arousal increased. We discuss how age effects on respiratory response magnitude and pattern may depend on age-associated biological changes or reflect age-related differences in emotional processing.

  12. Picture models for 2-scene comics creating system

    Directory of Open Access Journals (Sweden)

    Miki UENO

    2015-03-01

    Full Text Available Recently, computer understanding pictures and stories becomes one of the most important research topics in computer science. However, there are few researches about human like understanding by computers because pictures have not certain format and contain more lyric aspect than that of natural laguage. For picture understanding, a comic is the suitable target because it is consisted by clear and simple plot of stories and separated scenes.In this paper, we propose 2 different types of picture models for 2-scene comics creating system. We also show the method of the application of 2-scene comics creating system by means of proposed picture model.

  13. Neural Activation Underlying Cognitive Control in the Context of Neutral and Affectively Charged Pictures in Children

    Science.gov (United States)

    Lamm, Connie; White, Lauren K.; McDermott, Jennifer Martin; Fox, Nathan A.

    2012-01-01

    The neural correlates of cognitive control for typically developing 9-year-old children were examined using dense-array ERPs and estimates of cortical activation (LORETA) during a go/no-go task with two conditions: a neutral picture condition and an affectively charged picture condition. Activation was estimated for the entire cortex after which…

  14. Amygdala responses to unpleasant pictures are influenced by task demands and positive affect trait

    Directory of Open Access Journals (Sweden)

    Tiago Arruda Sanchez

    2015-03-01

    Full Text Available The role of attention in emotional processing is still the subject of debate. Recent studies have found that high positive affect in approach motivation narrows attention. Furthermore, the positive affect trait has been suggested as an important component for determining human variability in threat reactivity. We employed fMRI to investigate whether different states of attention control would modulate amygdala responses to highly unpleasant pictures relative to neutral and whether this modulation would be influenced by the positive affect trait. Participants (n=22, 12 male were scanned while viewing neutral (people or unpleasant pictures (mutilated bodies flanked by two peripheral bars. They were instructed to (a judge the picture content as unpleasant or neutral or (b to judge the difference in orientation between the bars in an easy condition (0º or 90º orientation difference or (c in a hard condition (0º or 6º orientation difference. Whole brain analysis revealed a task main effect of brain areas related to the experimental manipulation of attentional control, including the amygdala, dorsolateral prefrontal cortex and posterior parietal cortex. ROI analysis showed an inverse correlation (r = -0.51, p < 0.01 between left amygdala activation and positive affect level when participants viewed unpleasant stimuli and judged bar orientation in the easy condition. This result suggests that subjects with high positive affect exhibit lower amygdala reactivity to distracting unpleasant pictures. In conclusion, the current study suggests that positive affect modulates attention effect on unpleasant pictures, therefore attenuating emotional responses.

  15. Social systems: unearthing the big picture

    DEFF Research Database (Denmark)

    Cowley, Stephen

    2014-01-01

    Open peer commentary on the article “Social Autopoiesis?” by Hugo Urrestarazu. Upshot: Although accepting Urrestarazu’s view of how autopoietic dynamics can be sought in the domain of the non-living, we see no reason to trace the social to autonomy. Rather, we stress that social systems happen all...

  16. Multimedia systems overview: the big picture

    Science.gov (United States)

    Riccomi, Alfred

    1993-01-01

    The golden opportunities represented by multimedia systems have been recognized by many. The risk and cost involved in developing the products and the markets has led to a bonanza of unlikely consortia of strange bedfellows. The premier promoter of personal computing systems, Apple Computer, has joined forces with the dominant supplier of corporate computing, IBM, to form a multimedia technology joint venture called Kaleida. The consumer electronics world's leading promoter of free trade, Sony, has joined forces with the leader of Europe's protectionist companies, Philips, to create a consumer multimedia standard called CD-I. While still paying lip service to CD-I, Sony and Philips now appear to be going their separate ways. The software world's most profitable/fastest growing firm, Microsoft, has entered into alliances with each and every multimedia competitor to create a mish mash of product classes and defacto standards. The battle for Multimedia Standards is being fought on all fronts: on standards committees, in corporate strategic marketing meetings, within industry associations, in computer retail stores, and on the streets. Early attempts to set proprietary defacto standards were fought back, but the proprietary efforts continue with renewed vigor. Standards committees were, as always, slow to define specifications, but the official standards are now known nd being implemented; ... but the proprietary efforts continue with renewed vigor. Ultimately, the buyers will decide -- like it or not. Success by the efforts to establish proprietary defacto standards could prove to be a boon to the highly creative and inventive U.S. firms, but at the cost of higher prices for consumers and slower market growth. Success by the official standards could bring lower prices for consumers and fast market growth, but force the higher-wage/higher-overhead U.S. firms to compete on a level playing field. As is always the case, you can't have your cake and eat it too.

  17. Theta phase coherence in affective picture processing reveals dysfunctional sensory integration in psychopathic offenders.

    Science.gov (United States)

    Tillem, Scott; Ryan, Jonathan; Wu, Jia; Crowley, Michael J; Mayes, Linda C; Baskin-Sommers, Arielle

    2016-09-01

    Psychopathic offenders are described as emotionally cold, displaying deficits in affective responding. However, research demonstrates that many of the psychopathy-related deficits are moderated by attention, such that under conditions of high attentional and perceptual load psychopathic offenders display deficits in affective responses, but do not in conditions of low load. To date, most studies use measures of defensive reflex (i.e., startle) and conditioning manipulations to examine the impact of load on psychopathy-related processing, but have not examined more direct measures of attention processing. In a sample of adult male offenders, the present study examined time-frequency EEG phase coherence in response to a picture-viewing paradigm that manipulated picture familiarity to assess neural changes in processing based on perceptual demands. Results indicated psychopathy-related differences in the theta response, an index of readiness to perceive and integrate sensory information. These data provide further evidence that psychopathic offenders have disrupted integration of sensory information.

  18. Realization and prospect of γ camera digital picture processing system based on microcomputer

    International Nuclear Information System (INIS)

    The γ-camera picture processing system, picture display system, picture memory and digital processing system are described. The quantitative analysis of cerebrum and heart diagnostic and qualitative analysis of liver, kidney, lungs and gallbladder diagnostic are given in the diagnostic software. Finally, the development of γ-camera digital picture processing system is discussed from the point of view of progress in technique

  19. The pupil's response to affective pictures: Role of image duration, habituation, and viewing mode.

    Science.gov (United States)

    Snowden, Robert J; O'Farrell, Katherine R; Burley, Daniel; Erichsen, Jonathan T; Newton, Naomi V; Gray, Nicola S

    2016-08-01

    The pupil has been shown to be sensitive to the emotional content of stimuli. We examined this phenomenon by comparing fearful and neutral images carefully matched in the domains of luminance, image contrast, image color, and complexity of content. The pupil was more dilated after viewing affective pictures, and this effect was (a) shown to be independent of the presentation time of the images (from 100-3,000 ms), (b) not diminished by repeated presentations of the images, and (c) not affected by actively naming the emotion of the stimuli in comparison to passive viewing. Our results show that the emotional modulation of the pupil is present over a range of variables that typically vary from study to study (image duration, number of trials, free viewing vs. task), and encourages the use of pupillometry as a measure of emotional processing in populations where alternative techniques may not be appropriate. PMID:27172997

  20. Practical issues in picture archiving and communication system and networking

    International Nuclear Information System (INIS)

    Picture Archiving and Communication System (PACS) is a key workflow tool in the functioning of radiology departments worldwide, today, and its utilization is rapidly growing in India. The key challenges in PACS implementation are related to vendor and feature selection, integration with the existing HIS, user training, maintenance and scalability to meet increasing demands. Additionally, the networking requirements that PACS imposes on hospital networks are not insignificant. This article attempts to review these issues from the standpoint of what a prospective or new user needs to know

  1. Food depictions in picture books for preschool children: Frequency, centrality, and affect.

    Science.gov (United States)

    Goldman, Jane A; Descartes, Lara

    2016-01-01

    The food content and messages depicted in popular children's picture books were examined using a set of 100 "Favorite Books for Preschoolers." Sixty-nine of these books depicted food and comprised the sample. Examined were: the types and frequencies of food depicted in the text and/or illustrations of the books; the centrality (central, background); and the affect (positive, neutral, or negative) of those depictions. Each food item was counted, categorized by type, and where possible, coded for centrality and affect. Fruit was the most frequently depicted food, followed by sweetened baked goods, dairy, and vegetables. However, centrality and affect differed for these foods. For example, sweet baked goods were high in both centrality and affect. In contrast vegetables were relatively high in centrality but most often neutral in affect. Ice cream, although not in many books, always was associated with positive outcomes. Results were compared to findings in the literature on food messages presented in children's television programs. The ratio of healthy foods to nutrient-poor foods was higher in the books. However, as in television, the books emphasized the desirability of sweetened foods. The results point to the need for detailed analyses of the types of presentations associated with different foods presented in books for children, as well as for continued investigations into food messages in the growing range of media available to young children. PMID:26386301

  2. Food depictions in picture books for preschool children: Frequency, centrality, and affect.

    Science.gov (United States)

    Goldman, Jane A; Descartes, Lara

    2016-01-01

    The food content and messages depicted in popular children's picture books were examined using a set of 100 "Favorite Books for Preschoolers." Sixty-nine of these books depicted food and comprised the sample. Examined were: the types and frequencies of food depicted in the text and/or illustrations of the books; the centrality (central, background); and the affect (positive, neutral, or negative) of those depictions. Each food item was counted, categorized by type, and where possible, coded for centrality and affect. Fruit was the most frequently depicted food, followed by sweetened baked goods, dairy, and vegetables. However, centrality and affect differed for these foods. For example, sweet baked goods were high in both centrality and affect. In contrast vegetables were relatively high in centrality but most often neutral in affect. Ice cream, although not in many books, always was associated with positive outcomes. Results were compared to findings in the literature on food messages presented in children's television programs. The ratio of healthy foods to nutrient-poor foods was higher in the books. However, as in television, the books emphasized the desirability of sweetened foods. The results point to the need for detailed analyses of the types of presentations associated with different foods presented in books for children, as well as for continued investigations into food messages in the growing range of media available to young children.

  3. The association between chronic exposure to video game violence and affective picture processing: an ERP study.

    Science.gov (United States)

    Bailey, Kira; West, Robert; Anderson, Craig A

    2011-06-01

    Exposure to video game violence (VGV) is known to result in desensitization to violent material and may alter the processing of positive emotion related to facial expressions. The present study was designed to address three questions: (1) Does the association between VGV and positive emotion extend to stimuli other than faces, (2) is the association between VGV and affective picture processing observed with a single presentation of the stimuli, and (3) is the association between VGV and the response to violent stimuli sensitive to the relevance of emotion for task performance? The data revealed that transient modulations of the event-related potentials (ERPs) related to attentional orienting and sustained modulations of the ERPs related to evaluative processing were sensitive to VGV exposure. PMID:21461985

  4. Evaluating Picture Quality of Image Plates in Digital CR Systems

    Energy Technology Data Exchange (ETDEWEB)

    Kwak, Byung Joon [Dept. of Radiological Tecnology, Choonhae College of Health Science, Ulsan (Korea, Republic of); Ji Tae Jeong [Dept. of Radiological Science, Kaya University, Kimhae (Korea, Republic of)

    2011-12-15

    Lab effectively supplemented the effects of outside radiation on image plates in the process of image acquisition of CR (computed radiography) systems and conducted for effective utilization in the case of clinical application. For this, Lab classified the storage places and time periods of image plates and compared and analyzed the differences between small dark spots. Lab also assessed the concentration distribution within the boundaries of images. Lab compared and measured the number of dark spots in a light room and a dark room depending on the storage places of image plates and found that dark spots slightly increased in an image plate when stored in a light room on the first and second days. Dark spots increased in proportion to the length of time stored. In the case of the image plate stored in a dark room, the number of dark spots remarkably decreased. With regard to picture quality as related to the location of image plates, the damage to picture quality could be reduced by locating regions of interest in the center. With regard to differences in sharpness following changes in the thickness of subjects, fewer scatter rays occurred and sharpness improved by reducing the thickness of subjects as much as possible. To get medical images of excellent quality, image plates should be managed effectively and it is desirable to keep images plates in dark iron plate boxes and not to expose them to outside radiation for a long time.

  5. Evaluating Picture Quality of Image Plates in Digital CR Systems

    International Nuclear Information System (INIS)

    Lab effectively supplemented the effects of outside radiation on image plates in the process of image acquisition of CR (computed radiography) systems and conducted for effective utilization in the case of clinical application. For this, Lab classified the storage places and time periods of image plates and compared and analyzed the differences between small dark spots. Lab also assessed the concentration distribution within the boundaries of images. Lab compared and measured the number of dark spots in a light room and a dark room depending on the storage places of image plates and found that dark spots slightly increased in an image plate when stored in a light room on the first and second days. Dark spots increased in proportion to the length of time stored. In the case of the image plate stored in a dark room, the number of dark spots remarkably decreased. With regard to picture quality as related to the location of image plates, the damage to picture quality could be reduced by locating regions of interest in the center. With regard to differences in sharpness following changes in the thickness of subjects, fewer scatter rays occurred and sharpness improved by reducing the thickness of subjects as much as possible. To get medical images of excellent quality, image plates should be managed effectively and it is desirable to keep images plates in dark iron plate boxes and not to expose them to outside radiation for a long time.

  6. Emotion regulation of the affect-modulated startle reflex during different picture categories.

    Science.gov (United States)

    Conzelmann, Annette; McGregor, Victoria; Pauli, Paul

    2015-09-01

    Previous studies on emotion regulation of the startle reflex found an increase in startle amplitude from down-, to non-, to up-regulation for pleasant and unpleasant stimuli. We wanted to clarify whether this regulation effect remains stable for different picture categories within pleasant and unpleasant picture sets. We assessed startle amplitude of 31 participants during down-, non-, or up-regulation of feelings elicited by pleasant erotic and adventure and unpleasant victim and threat pictures. Startle amplitude was smaller during adventure and erotic compared to victim and threat pictures and increased from down-, to non-, to up-regulation independently of the picture category. Results indicate that the motivational priming effect on startle modulation elicited by different picture categories is independent of emotion regulation instructions. In addition, the emotion regulation effect is independent of motivational priming effects. PMID:26061976

  7. Emotion Recognition with Eigen Features of Frequency Band Activities Embedded in Induced Brain Oscillations Mediated by Affective Pictures.

    Science.gov (United States)

    Aydin, Serap; Demirtaş, Serdar; Ateş, Kahraman; Tunga, M Alper

    2016-05-01

    In this study, singular spectrum analysis (SSA) has been used for the first time in order to extract emotional features from well-defined electroencephalography (EEG) frequency band activities (BAs) so-called delta (0.5-4 Hz), theta (4-8 Hz), alpha (8-16 Hz), beta (16-32 Hz), gamma (32-64 Hz). These five BAs were estimated by applying sixth-level multi-resolution wavelet decomposition (MRWD) with Daubechies wavelets (db-8) to single channel nonaveraged emotional EEG oscillations of 6 s for each scalp location over 16 recording sites (Fp1, Fp2, F3, F4, F7, F8, C3, C4, P3, P4, T3, T4, T5, T6, O1, O2). Every trial was mediated by different emotional stimuli which were selected from international affective picture system (IAPS) to induce emotional states such as pleasant (P), neutral (N), and unpleasant (UP). Largest principal components (PCs) of BAs were considered as emotional features and data mining approaches were used for the first time in order to classify both three different (P, N, UP) and two contrasting (P and UP) emotional states for 30 healthy controls. Emotional features extracted from gamma BAs (GBAs) for 16 recording sites provided the high classification accuracies of 87.1% and 100% for classification of three emotional states and two contrasting emotional states, respectively. In conclusion, we found the followings: (1) Eigenspectra of high frequency BAs in EEG are highly sensitive to emotional hemispheric activations, (2) emotional states are mostly mediated by GBA, (3) pleasant pictures induce the higher cortical activation in contrast to unpleasant pictures, (4) contrasting emotions induce opposite cortical activations, (5) cognitive activities are necessary for an emotion to occur. PMID:26971786

  8. Picture archiving and communication systems in digital cytology.

    Science.gov (United States)

    Morelli, Sandra; Grigioni, Mauro; Giovagnoli, Maria Rosaria; Balzano, Simone; Giansanti, Daniele

    2010-01-01

    The paper describes a fundamental feature of digital cytology relevant to the implementation of the technology in the hospital net services: the electronic recording of the virtual slides (VS) in the hospital information system (HIS) through a picture archiving and communication system (PACS). Starting from the digital cytology (D-CYT) state of art and considering the most important products in the field, particular attention has been devoted in this review to the comparison with the digital radiology (D-RAD). Two main indications emerged from the study: 1. there is not a standard in the digital files relevant to the virtual slides in D-CYT, while in D-RAD the standard digital imaging and communications in medicine (DICOM), introduced by the National Electrical Manufacturers Association (NEMA), has been adopted from several years; 2. the PACS in D-CYT are not standardized from manufacturers. The study makes a proposal of a useful software architecture to improve the PACS integration for D-CYT applications, with potentialities in the HIS.

  9. Picture archiving and communication systems in digital cytology

    Directory of Open Access Journals (Sweden)

    Sandra Morelli

    2010-06-01

    Full Text Available The paper describes a fundamental feature of digital cytology relevant to the implementation of the technology in the hospital net services: the electronic recording of the virtual slides (VS in the hospital information system (HIS through a picture archiving and communication system (PACS. Starting from the digital cytology (D-CYT state of art and considering the most important products in the field, particular attention has been devoted in this review to the comparison with the digital radiology (D-RAD. Two main indications emerged from the study: 1. there is not a standard in the digital files relevant to the virtual slides in D-CYT, while in D-RAD the standard digital imaging and communications in medicine (DICOM, introduced by the National Electrical Manufacturers Association (NEMA, has been adopted from several years; 2. the PACS in D-CYT are not standardized from manufacturers. The study makes a proposal of a useful software architecture to improve the PACS integration for D-CYT applications, with potentialities in the HIS.

  10. Security model for picture archiving and communication systems.

    Science.gov (United States)

    Harding, D B; Gac, R J; Reynolds, C T; Romlein, J; Chacko, A K

    2000-05-01

    The modern information revolution has facilitated a metamorphosis of health care delivery wrought with the challenges of securing patient sensitive data. To accommodate this reality, Congress passed the Health Insurance Portability and Accountability Act (HIPAA). While final guidance has not fully been resolved at this time, it is up to the health care community to develop and implement comprehensive security strategies founded on procedural, hardware and software solutions in preparation for future controls. The Virtual Radiology Environment (VRE) Project, a landmark US Army picture archiving and communications system (PACS) implemented across 10 geographically dispersed medical facilities, has addressed that challenge by planning for the secure transmission of medical images and reports over their local (LAN) and wide area network (WAN) infrastructure. Their model, which is transferable to general PACS implementations, encompasses a strategy of application risk and dataflow identification, data auditing, security policy definition, and procedural controls. When combined with hardware and software solutions that are both non-performance limiting and scalable, the comprehensive approach will not only sufficiently address the current security requirements, but also accommodate the natural evolution of the enterprise security model. PMID:10847401

  11. Fault-tolerant design of picture archiving and communication systems

    International Nuclear Information System (INIS)

    Reliability is perhaps the most important attribute of a PACS. Any downtime of the system may seriously affect patient care. This paper describes fault-tolerant measures employed in the design of a hospital-wide PACS. Six fault-tolerant measures have been implemented: hardware redundance (networks and archives), data-base backups, monitoring routines for local host processes and network status; uninterruptible power supplied, structured software design techniques, and in-service training of all radiology technologists. A PACS consisting of 13 acquisition nodes, two optical archiving nodes, two data-base server nodes, and five workstation nodes has been developed

  12. On the classification of emotional biosignals evoked while viewing affective pictures: an integrated data-mining-based approach for healthcare applications.

    Science.gov (United States)

    Frantzidis, Christos A; Bratsas, Charalampos; Klados, Manousos A; Konstantinidis, Evdokimos; Lithari, Chrysa D; Vivas, Ana B; Papadelis, Christos L; Kaldoudi, Eleni; Pappas, Costas; Bamidis, Panagiotis D

    2010-03-01

    Recent neuroscience findings demonstrate the fundamental role of emotion in the maintenance of physical and mental health. In the present study, a novel architecture is proposed for the robust discrimination of emotional physiological signals evoked upon viewing pictures selected from the International Affective Picture System (IAPS). Biosignals are multichannel recordings from both the central and the autonomic nervous systems. Following the bidirectional emotion theory model, IAPS pictures are rated along two dimensions, namely, their valence and arousal. Following this model, biosignals in this paper are initially differentiated according to their valence dimension by means of a data mining approach, which is the C4.5 decision tree algorithm. Then, the valence and the gender information serve as an input to a Mahalanobis distance classifier, which dissects the data into high and low arousing. Results are described in Extensible Markup Language (XML) format, thereby accounting for platform independency, easy interconnectivity, and information exchange. The average recognition (success) rate was 77.68% for the discrimination of four emotional states, differing both in their arousal and valence dimension. It is, therefore, envisaged that the proposed approach holds promise for the efficient discrimination of negative and positive emotions, and it is hereby discussed how future developments may be steered to serve for affective healthcare applications, such as the monitoring of the elderly or chronically ill people.

  13. On the classification of emotional biosignals evoked while viewing affective pictures: an integrated data-mining-based approach for healthcare applications.

    Science.gov (United States)

    Frantzidis, Christos A; Bratsas, Charalampos; Klados, Manousos A; Konstantinidis, Evdokimos; Lithari, Chrysa D; Vivas, Ana B; Papadelis, Christos L; Kaldoudi, Eleni; Pappas, Costas; Bamidis, Panagiotis D

    2010-03-01

    Recent neuroscience findings demonstrate the fundamental role of emotion in the maintenance of physical and mental health. In the present study, a novel architecture is proposed for the robust discrimination of emotional physiological signals evoked upon viewing pictures selected from the International Affective Picture System (IAPS). Biosignals are multichannel recordings from both the central and the autonomic nervous systems. Following the bidirectional emotion theory model, IAPS pictures are rated along two dimensions, namely, their valence and arousal. Following this model, biosignals in this paper are initially differentiated according to their valence dimension by means of a data mining approach, which is the C4.5 decision tree algorithm. Then, the valence and the gender information serve as an input to a Mahalanobis distance classifier, which dissects the data into high and low arousing. Results are described in Extensible Markup Language (XML) format, thereby accounting for platform independency, easy interconnectivity, and information exchange. The average recognition (success) rate was 77.68% for the discrimination of four emotional states, differing both in their arousal and valence dimension. It is, therefore, envisaged that the proposed approach holds promise for the efficient discrimination of negative and positive emotions, and it is hereby discussed how future developments may be steered to serve for affective healthcare applications, such as the monitoring of the elderly or chronically ill people. PMID:20064762

  14. A Sensitive and Specific Neural Signature for Picture-Induced Negative Affect.

    Directory of Open Access Journals (Sweden)

    Luke J Chang

    2015-06-01

    Full Text Available Neuroimaging has identified many correlates of emotion but has not yet yielded brain representations predictive of the intensity of emotional experiences in individuals. We used machine learning to identify a sensitive and specific signature of emotional responses to aversive images. This signature predicted the intensity of negative emotion in individual participants in cross validation (n =121 and test (n = 61 samples (high-low emotion = 93.5% accuracy. It was unresponsive to physical pain (emotion-pain = 92% discriminative accuracy, demonstrating that it is not a representation of generalized arousal or salience. The signature was comprised of mesoscale patterns spanning multiple cortical and subcortical systems, with no single system necessary or sufficient for predicting experience. Furthermore, it was not reducible to activity in traditional "emotion-related" regions (e.g., amygdala, insula or resting-state networks (e.g., "salience," "default mode". Overall, this work identifies differentiable neural components of negative emotion and pain, providing a basis for new, brain-based taxonomies of affective processes.

  15. A Sensitive and Specific Neural Signature for Picture-Induced Negative Affect.

    Science.gov (United States)

    Chang, Luke J; Gianaros, Peter J; Manuck, Stephen B; Krishnan, Anjali; Wager, Tor D

    2015-06-01

    Neuroimaging has identified many correlates of emotion but has not yet yielded brain representations predictive of the intensity of emotional experiences in individuals. We used machine learning to identify a sensitive and specific signature of emotional responses to aversive images. This signature predicted the intensity of negative emotion in individual participants in cross validation (n =121) and test (n = 61) samples (high-low emotion = 93.5% accuracy). It was unresponsive to physical pain (emotion-pain = 92% discriminative accuracy), demonstrating that it is not a representation of generalized arousal or salience. The signature was comprised of mesoscale patterns spanning multiple cortical and subcortical systems, with no single system necessary or sufficient for predicting experience. Furthermore, it was not reducible to activity in traditional "emotion-related" regions (e.g., amygdala, insula) or resting-state networks (e.g., "salience," "default mode"). Overall, this work identifies differentiable neural components of negative emotion and pain, providing a basis for new, brain-based taxonomies of affective processes. PMID:26098873

  16. A multiprocessor system for the analysis of pictures of nuclear events

    CERN Document Server

    Bacilieri, P; Matteuzzi, P; Sini, G P; Zanotti, U

    1979-01-01

    The pictures of nuclear events obtained from the bubble chambers such as Gargamelle and BEBC at CERN and others from Serpukhov are geometrically processed at CNAF (Centro Nazionale Analysis Photogrammi) in Bologna. The analysis system includes an Erasme table and a CRT flying spot digitizer. The difficulties connected with the pictures of the four stereoscopic views of the bubble chambers are overcome by the choice of a strong interactive system. (0 refs).

  17. More than pretty pictures? How illustrations affect parent-child story reading and children's story recall.

    Science.gov (United States)

    Greenhoot, Andrea Follmer; Beyer, Alisa M; Curtis, Jennifer

    2014-01-01

    Previous research showed that story illustrations fail to enhance young preschoolers' memories when they accompany a pre-recorded story (e.g., Greenhoot and Semb, 2008). In this study we tested whether young children might benefit from illustrations in a more interactive story-reading context. For instance, illustrations might influence parent-child reading interactions, and thus children's story comprehension and recall. Twenty-six 3.5- to 4.5-year-olds and their primary caregivers were randomly assigned to an Illustrated or Non-Illustrated story-reading condition, and parents were instructed to "read or tell the story" as they normally would read with their child. Children recalled the story after a distracter and again after 1 week. Analyses of the story-reading interactions showed that the illustrations prompted more interactive story reading and more parent and child behaviors known to predict improved literacy outcomes. Furthermore, in the first memory interview, children in the Illustrated condition recalled more story events than those in the Non-Illustrated condition. Story reading measures predicted recall, but did not completely account for picture effects. These results suggest that illustrations enhance young preschoolers' story recall in an interactive story reading context, perhaps because the joint attention established in this context supports children's processing of the illustrations.

  18. CHLOE: a system for the automatic handling of spark pictures

    International Nuclear Information System (INIS)

    The system for automatic data handling uses commercially available or state-of-the-art components. The system is flexible enough to accept information from various types of experiments involving photographic data acquisition

  19. Peculiarities of ultrasonic picture of thyroid in children and teenagers affected by radionuclides

    International Nuclear Information System (INIS)

    Ultrasonic screening of thyroid has been carried out in 1577 children and teenagers 6-17 years old, who were affected by radionuclides and are living in goiter endemic territories of Gomel region. The spread of nodal pathology of the thyroid in children of Gomel region has been found to be more than 15% and that of cancer - 2,54%. 1 tab, 7 refs

  20. Use of the adult attachment projective picture system in psychodynamic psychotherapy with a severely traumatized patient.

    Science.gov (United States)

    George, Carol; Buchheim, Anna

    2014-01-01

    The following case study is presented to facilitate an understanding of how the attachment information evident from Adult Attachment Projective Picture System (AAP) assessment can be integrated into a psychodynamic perspective in making therapeutic recommendations that integrate an attachment perspective. The Adult Attachment Projective Picture System (AAP) is a valid representational measure of internal representations of attachment based on the analysis of a set of free response picture stimuli designed to systematically activate the attachment system (George and West, 2012). The AAP provides a fruitful diagnostic tool for psychodynamic-oriented clinicians to identify attachment-based deficits and resources for an individual patient in therapy. This paper considers the use of the AAP with a traumatized patient in an inpatient setting and uses a case study to illustrate the components of the AAP that are particularly relevant to a psychodynamic conceptualization. The paper discusses also attachment-based recommendations for intervention.

  1. General flat four-dimensional world pictures and clock systems

    Science.gov (United States)

    Hsu, J. P.; Underwood, J. A.

    1978-01-01

    We explore the mathematical structure and the physical implications of a general four-dimensional symmetry framework which is consistent with the Poincare-Einstein principle of relativity for physical laws and with experiments. In particular, we discuss a four-dimensional framework in which all observers in different frames use one and the same grid of clocks. The general framework includes special relativity and a recently proposed new four-dimensional symmetry with a nonuniversal light speed as two special simple cases. The connection between the properties of light propagation and the convention concerning clock systems is also discussed, and is seen to be nonunique within the four-dimensional framework.

  2. A New Forensic Picture Polygraph Technique for Terrorist and Crime Deception System

    Science.gov (United States)

    Costello, R. H. Brian; Axton, JoAnn; Gold, Karen L.

    2006-01-01

    The Forensic Terrorist Detection System called Pinocchio Assessment Profile (PAP) employs standard issue polygraphs for a non-verbal picture technique originated as a biofeedback careers interest instrument. The system can be integrated readily into airport screening protocols. However, the method does not rely on questioning or foreign language…

  3. The Effects of Behavioral Skills Training on Implementation of the Picture Exchange Communication System

    Science.gov (United States)

    Rosales, Rocio; Stone, Karen; Rehfeldt, Ruth Anne

    2009-01-01

    The effectiveness of a behavioral skills training (BST) package to teach the implementation of the first three phases of the picture exchange communication system (PECS) was evaluated with 3 adults who had no history teaching any functional communication system. A multiple baseline design across participants was used to evaluate the effectiveness…

  4. Metaphor priming in sentence production: concrete pictures affect abstract language production.

    Science.gov (United States)

    Sato, Manami; Schafer, Amy J; Bergen, Benjamin K

    2015-03-01

    People speak metaphorically about abstract concepts-for instance, a person can be "full of love" or "have a lot of love to give." Over the past decade, research has begun to focus on how metaphors are processed during language comprehension. Much of this work suggests that understanding a metaphorical expression involves activating brain and body systems involved in perception and motor control. However, no research to date has asked whether the same is true while speakers produce language. We address this gap using a sentence production task. Its results demonstrate that visually activating a concrete source domain can trigger the use of metaphorical language drawn from that same concrete domain, even in sentences that are thematically unrelated to the primes, a metaphorical priming effect. This effect suggests that conceptual metaphors play a part in language production. It also shows that activation in the perceptual system that is not part of an intended message can nevertheless influence sentence formulation.

  5. Picture Archiving and Communication System (PACS) implementation, integration & benefits in an integrated health system.

    Science.gov (United States)

    Mansoori, Bahar; Erhard, Karen K; Sunshine, Jeffrey L

    2012-02-01

    The availability of the Picture Archiving and Communication System (PACS) has revolutionized the practice of radiology in the past two decades and has shown to eventually increase productivity in radiology and medicine. PACS implementation and integration may bring along numerous unexpected issues, particularly in a large-scale enterprise. To achieve a successful PACS implementation, identifying the critical success and failure factors is essential. This article provides an overview of the process of implementing and integrating PACS in a comprehensive health system comprising an academic core hospital and numerous community hospitals. Important issues are addressed, touching all stages from planning to operation and training. The impact of an enterprise-wide radiology information system and PACS at the academic medical center (four specialty hospitals), in six additional community hospitals, and in all associated outpatient clinics as well as the implications on the productivity and efficiency of the entire enterprise are presented. PMID:22212425

  6. Understanding the Picture Exchange Communication System and Its Application in Physical Education

    Science.gov (United States)

    Green, Amanda; Sandt, Dawn

    2013-01-01

    This article presents the Picture Exchange Communication System (PECS) and its applications in physical education. The PECS is an appropriate communication intervention for students with autism who lack functional communication skills. It is often confused with other visual support strategies, so the authors delineate the six phases of PECS and…

  7. Transparent image access in a distributed picture archiving and communications system: The master database broker

    OpenAIRE

    Cox, R D; Henri, C. J.; Rubin, R. K.

    1999-01-01

    A distributed design is the most cost-effective system for small- to medium-scale picture archiving and communications systems (PACS) implementations. However, the design presents an interesting challenge to developers and implementers: to make stored image data, distributed throughout the PACS network, appear to be centralized with a single access point for users. A key component for the distributed system is a central or master database, containing all the studies that have been scanned int...

  8. The Conquest Hospital picture archiving and communications system development, 1992 to 1999

    OpenAIRE

    Foord, Keith; Tomlinson, Nigel

    1999-01-01

    Conquest Hospital was a UK regional development site for a pre-Digital Imaging and Communications in Medicine (DICOM) picture archiving and communication system (PACS). The initial system was installed in mid 1992. Identification has been made of data transfer, ergonomic and single point of failure issues in the original PACS, which was called “iLAN.” This has informed respecification of a DICOM/HTML PACS, the first stages of which have been hospital renetworking and installation of new DICOM...

  9. Use of the Adult Attachment Projective Picture System in Psychodynamic Psychotherapy with a Severely Traumatized Patient

    Directory of Open Access Journals (Sweden)

    Carol eGeorge

    2014-08-01

    Full Text Available The Adult Attachment Projective Picture System (AAP is a valid representational measure of internal representations of attachment based on the analysis of a set of free response picture stimuli designed to systematically activate the attachment system (George & West, 2012. The AAP provides a fruitful diagnostic tool for psychodynamic-oriented clinicians to identify attachment-based deficits and resources for an individual patient in therapy. This paper considers the use of the AAP with a traumatized patient in an inpatient setting and uses a case study to illustrate the components of the AAP that are particularly relevant to a psychodynamic conceptualization. The paper discusses also attachment-based recommendations for intervention.

  10. PET/CT Fusion Viewing Software for Use with Picture Archiving and Communication Systems

    OpenAIRE

    Im, Ki Chun; Choi, Ik Soo; Ryu, Jin-Sook; Eo, Gi Seoung; Kim, Jae Seung; Moon, Dae Hyuk

    2009-01-01

    We developed positron emission tomography (PET)/computed tomography (CT) viewing software (PETviewer) that can display co-registered PET and CT images obtained by PET/CT and stored on picture archiving and communication systems (PACS). PETviewer has tools for presetting windows for CT display; control bars for PET window level; zoom, pan, and pseudo-color functions; and allows the user to draw a rectangular region of interest (ROI) for standardized uptake value (SUV) measurement. SUV was calc...

  11. Content-based image retrieval in picture archiving and communications systems

    OpenAIRE

    Qi, Hairong; Snyder, Wesley E.

    1999-01-01

    We propose the concept of content-based image retrieval (CBIR) and demonstrate its potential use in picture archival and communication system (PACS). We address the importance of image retrieval in PACS and highlight the drawbacks existing in traditional textual-based retrieval. We use a digital mammogram database as our testing data to illustrate the idea of CBIR, where retrieval is carried out based on object shape, size, and brightness histogram. With a user-supplied query image, the syste...

  12. Clinical data compression with a picture archiving and communications system image workstation

    International Nuclear Information System (INIS)

    The picture archiving communications system (PACS) started in 1985 at Kyoto University Hospital has been working for 4 years in a clinical environment. Three x-ray CT, MR imaging, chest radiography, and digital subtraction angiography (DSAs) units have already been linked with the system. Because the long-term archiving of the image data and the increase in the number of image modalities have caused system overload, efforts should be made to reduce the image data. This paper reports on an image workstation with a personal computer to create an image summary with reporting system

  13. Picture archiving and communication systems in radiology. Sistemas de archivo y comunicacion de imagen en radiologia

    Energy Technology Data Exchange (ETDEWEB)

    Piqueras Pardellans, J.; Carreo Pedemonte, J.C.; Lucaya Layret, J.

    1994-01-01

    Picture archiving and communication systems (PACS) constitute a data processing tool that offers new working methods of diagnostic radiology. The definitive aim of a PACS is to allow a radiology service to operate without film images or documents on paper, integrating images and clinical information. Different image acquisition, viewing and storage systems, linked by communications networks, are arranged around a central management and storage system. Their components are described and the advantages, drawbacks and limitations are discussed from the technological point of view and considering their impact on health care, while a critical review is provided of the 1993 status of this issue. (Author)

  14. Gaze differences in processing pictures with emotional content.

    Science.gov (United States)

    Budimir, Sanja; Palmović, Marijan

    2011-01-01

    The International Affective Picture System (IAPS) is a set of standardized emotionally evocative color photographs developed by NIMH Center for Emotion and Attention at the University of Florida. It contains more than 900 emotional pictures indexed by emotional valence, arousal and dominance. However, when IAPS pictures were used in studying emotions with the event-related potentials, the results have shown a great deal of variation and inconsistency. In this research arousal and dominance of pictures were controlled while emotional valence was manipulated as 3 categories, pleasant, neutral and unpleasant pictures. Two experiments were conducted with an eye-tracker in order to determine to what the participants turn their gaze. Participants were 25 psychology students with normal vision. Every participant saw all pictures in color and same pictures in black/white version. This makes 200 analyzed units for color pictures and 200 for black and white pictures. Every picture was divided into figure and ground. Considering that perception can be influenced by color, edges, luminosity and contrast and since all those factors are collapsed on the pictures in IAPS, we compared color pictures with same black and white pictures. In first eye-tracking IAPS research we analyzed 12 emotional pictures and showed that participants have higher number of fixations for ground on neutral and unpleasant pictures and for figure on pleasant pictures. Second experiment was conducted with 4 sets of emotional complementary pictures (pleasant/unpleasant) which differ only on the content in the figure area and it was shown that participants were more focused on the figure area than on the ground area. Future ERP (event related potential) research with IAPS pictures should take into consideration these findings and to either choose pictures with blank ground or adjust pictures in the way that ground is blank. For the following experiments suggestion is to put emotional content in the figure

  15. A dynamical-system picture of a simple branching-process phase transition

    CERN Document Server

    Williams, David

    2010-01-01

    This paper develops ideas from a previous paper described as `an appetizer for non-linear Wiener--Hopf theory', but is completely independent of that paper. It again considers only the simplest possible case in which the underlying motion of the branching particles is described by a two-state Markov chain. Key generating functions provide solutions of a simple two-dimensional dynamical system, and the main interest is in the way in which Probability Theory and ODE theory complement each other. ODE pictures convey rather strikingly a simple phase transition. No knowledge of either ODE theory or Wiener--Hopf theory is assumed.

  16. The Conquest Hospital picture archiving and communications system development, 1992 to 1999.

    Science.gov (United States)

    Foord, K; Tomlinson, N

    1999-05-01

    Conquest Hospital was a UK regional development site for a pre-Digital Imaging and Communications in Medicine (DICOM) picture archiving and communication system (PACS). The initial system was installed in mid 1992. Identification has been made of data transfer, ergonomic and single point of failure issues in the original PACS, which was called "iLAN." This has informed respecification of a DICOM/HTML PACS, the first stages of which have been hospital renetworking and installation of new DICOM 3.0 computed radiography/fluorography and computed tomography/magnetic resonance imaging segments. Final PACS elements are at contract stage. Plans are being completed for linkage of PACS to a clinical information system to create a comprehensive electronic patient record system. PMID:10342218

  17. [CORBA-based design and packaging of picture archiving and communication system object].

    Science.gov (United States)

    Zhang, Zu-jin; Sun, An-yu

    2009-10-01

    Regionalization has become one of the most important trends in the development of picture archiving and communication systems (PACS) due to the existence of large amounts of information islands. The conventional PACS designed according to the DICOM standard on the basis of the C/S structure fails to meet the demand of regional information system maintenance. A regional PACS system based on common object request broker architecture (CORBA) distributed technology is therefore proposed and implemented. This article describes the design and packaging of the PACS objects. When mounting a series of separate logical and related functional PACS objects on the ORB bus, the multi-scale PACS systems can be established. This method eliminates the limitation of the C/S structure and offers good compatibility and scalability.

  18. Simulation of the geomagnetic field experienced by the International Space Station in its revolution around the Earth: Effects on psychophysiological responses to affective picture viewing

    Science.gov (United States)

    Del Seppia, C.; Mezzasalma, L.; Messerotti, M.; Cordelli, A.; Ghione, S.

    2006-02-01

    There is evidence suggesting that exposure to an abnormal magnetic environment may produce psychophysiological effects related to abnormalities in responses to stress. This may be of relevance for space medicine where astronauts are exposed to a magnetic field different from that exerted by the Earth. Aim of this study was to assess how the exposure of the head to a magnetic field simulating the one encountered by the International Space Station (ISS) during a single orbit (90 min) around the Earth affects the cardiovascular and psychophysiological parameters. Twenty-four human volunteers were studied double blindly in random order under sham and magnetic exposure. During exposure, the persons were shown a set of pictures of different emotional content while subjective self-rating, skin conductance (SC), blood pressure (BP), and heart rate (HR) were measured. In addition, BP, HR, and tooth pain threshold were assessed before and after exposure. While subjects were under magnetic exposure, skin conductance was strongly differentiated (F|2,36 = 22.927; p = 0.0001), being high during emotionally involving (positive and negative) pictures and low during neutral pictures. Conversely, when subjects were under sham exposure, no significant differences were observed. There was, however, a trend for higher heart rate during picture viewing under magnetic exposure as compared to sham exposure. No effects were found for the other variables. These results suggest that an abnormal magnetic field that simulates the one encountered by ISS orbiting around the Earth may enhance autonomic response to emotional stimuli.

  19. Cover Picture.

    Science.gov (United States)

    Breuning; Ruben; Lehn; Renz; Garcia; Ksenofontov; Gütlich; Wegelius; Rissanen

    2000-07-17

    The cover picture shows how both, fine arts and science, avail themselves of a system of intertwined symbolic and iconic languages. They make use of a common set of abstracted signs to report on their results. Thus, already in 1925, Wassily Kandinsky painted a masterpiece (bottom), which now, 75 years later, might be regarded as a blueprint for a scientific project. In his painting, Kandinsky pictured a grid-shaped sign that resembles in effect an actual molecular switch. Apparently following an enigmatic protocol, the groups of Lehn and Gütlich (see p. 2504 ff. for more details) constructed a grid-type inorganic architecture that operates as a three-level magnetic switch (center) triggered by three external perturbations (p, T, hnu). The switching principle is based on the spin-crossover phenomenon of Fe(II) ions and can be monitored by Mössbauer spectroscopy (left) and magnetic measurements (rear). Maybe not by chance, the English translation of the title of the painting "signs" is a homonym of "science", since both presented works are a product of the insatiable curiosity of man and his untiring desire to recognize his existence.

  20. Mood Swings: An Affective Interactive Art System

    NARCIS (Netherlands)

    Bialoskorski, Leticia S.S.; Westerink, Joyce H.D.M.; Broek, van den Egon L.; Nijholt, Anton; Reidsma, Dennis; Hondorp, Hendri

    2009-01-01

    The progress in the field of affective computing enables the realization of affective consumer products, affective games, and affective art. This paper describes the affective interactive art system Mood Swings, which interprets and visualizes affect expressed by a person. Mood Swings is founded on

  1. Interest of including trauma photography in the picture archiving and communication system of a teaching hospital.

    Science.gov (United States)

    Bronsard, N; Chignon Sicard, B; Amoretti, N; Rottier, H; Ertz, P; de Peretti, F

    2015-05-01

    Digital imaging is a daily practice in traumatology. Such photographs should remain confidential. However, there is a need for objectivity concerning the circumstances and clinical follow-up for trauma patients. This paper describes how to conserve these photographs within the picture archiving and communication system (PACS) safely as regards identity and confidentiality. A computer converts the photographs into DICOM files. The DICOM image is associated to a reconciliation layer, validated by the physician in charge, and then included in the hospital PACS. This improves transmission from one medical team to another, both initially and after the accident if an expert medical opinion is required. The literature has demonstrated the value of photographs in modern medicine, but the technical and legal challenges are many. They enhance the computerized medical records. Identification, confidentiality and integration in the PACS are obstacles that we have now overcome.

  2. HIV Infection Seems to Affect Nervous System

    Science.gov (United States)

    ... fullstory_159344.html HIV Infection Seems to Affect Nervous System But symptoms tend to subside once antiretroviral drugs ... mild, it is clear that HIV affects the nervous system within days of infection," she said in a ...

  3. Mood Swings: An Affective Interactive Art System

    Science.gov (United States)

    Bialoskorski, Leticia S. S.; Westerink, Joyce H. D. M.; van den Broek, Egon L.

    The progress in the field of affective computing enables the realization of affective consumer products, affective games, and affective art. This paper describes the affective interactive art system Mood Swings, which interprets and visualizes affect expressed by a person. Mood Swings is founded on the integration of a framework for affective movements and a color model. This enables Mood Swings to recognize affective movement characteristics as expressed by a person and display a color that matches the expressed emotion. With that, a unique interactive system is introduced, which can be considered as art, a game, or a combination of both.

  4. Effects of picture size reduction and blurring on emotional engagement.

    Directory of Open Access Journals (Sweden)

    Andrea De Cesarei

    Full Text Available The activity of basic motivational systems is reflected in emotional responses to arousing stimuli, such as natural pictures. The manipulation of picture properties such as size or detail allows for investigation into the extent to which separate emotional reactions are similarly modulated by perceptual changes, or, rather, may subserve different functions. Pursuing this line of research, the present study examined the effects of two types of perceptual degradation, namely picture size reduction and blurring, on emotional responses. Both manipulations reduced picture relevance and dampened affective modulation of skin conductance, possibly because of a reduced action preparation in response to degraded or remote pictures. However, the affective modulation of the startle reflex did not vary with picture degradation, suggesting that the identification of these degraded affective cues activated the neural circuits mediating appetitive or defensive motivation.

  5. Food as Risk: How Eating Habits and Food Knowledge Affect Reactivity to Pictures of Junk and Healthy Foods.

    Science.gov (United States)

    Yegiyan, Narine S; Bailey, Rachel L

    2016-01-01

    This study explores how people respond to images of junk versus healthy food as a function of their eating habits and food knowledge. The experiment reported here proposed and tested the idea that those with unhealthy eating habits but highly knowledgeable about healthy eating would feel more positive and also more negative toward junk food images compared to images of healthy food because they may perceive them as risky--desirable but potentially harmful. The psychophysiological data collected from participants during their exposure to pictures of junk versus healthy food supported this idea. In addition, unhealthy eaters compared to healthy eaters with the same degree of food knowledge responded more positively to all food items. The findings are critical from a health communication perspective. Because unhealthy eaters produce stronger emotional responses to images of junk food, they are more likely to process information associated with junk food with more cognitive effort and scrutiny. Thus, when targeting this group and using images of junk food, it is important to combine these images with strong message claims and relevant arguments; otherwise, if the arguments are perceived as irrelevant or weak, the motivational activation associated with junk food itself may transfer into an increased desire to consume the unhealthy product. PMID:26503541

  6. Multidimensional radar picture

    Science.gov (United States)

    Waz, Mariusz

    2010-05-01

    In marine navigation systems, the three-dimensional (3D) visualization is often and often used. Echosonders and sonars working in hydroacustic systems can present pictures in three dimensions. Currently, vector maps also offer 3D presentation. This presentation is used in aviation and underwater navigation. In the nearest future three-dimensional presentation may be obligatory presentation in displays of navigation systems. A part of these systems work with radar and communicates with it transmitting data in a digital form. 3D presentation of radar picture require a new technology to develop. In the first step it is necessary to compile digital form of radar signal. The modern navigation radar do not present data in three-dimensional form. Progress in technology of digital signal processing make it possible to create multidimensional radar pictures. For instance, the RSC (Radar Scan Converter) - digital radar picture recording and transforming tool can be used to create new picture online. Using RSC and techniques of modern computer graphics multidimensional radar pictures can be generated. The radar pictures mentioned should be readable for ECDIS. The paper presents a method for generating multidimensional radar picture from original signal coming from radar receiver.

  7. Hard disk online caches in picture archiving and communication systems archives: how big is beautiful?

    Energy Technology Data Exchange (ETDEWEB)

    Wirth, Stefan; Treitl, Marcus; Mueller-Lisse, U.G.; Rieger, Johannes; Mittermaier, Ingo; Pfeifer, K.J.; Reiser, Maximilian [Ludwig-Maximilians University of Munich, Department of Clinical Radiology, Munich (Germany)

    2006-08-15

    The objective of our study was to support algorithmic recommendations for the appropriate sizing of picture archiving and communication system (PACS) caches. For a large PACS installation, a detailed analysis of current radiographic (CR), CT and MRI studies (n=400 consecutive studies, respectively) was performed. In this process every available prior examination was also considered. A new algorithmic procedure for appropriate sizing of PACS caches was developed and applied to the given cache implementation. The number of all priors was 7.6{+-}12.3. Of them, 61% were relevant priors with an average age of 203{+-}385 days. A basic cache (BC) that covers 12 months of current imaging results in a pre-fetching quote of 15.4% (8.6% for 24 months). In the PACS installation examined, a minimal threefold increase in cache capacity was recommended. Studies that are retrieved, prior to viewing, from the long-term archive require additional space in the extended cache (EC). An intimate and mutual interaction between hospital information system (HIS), radiology information system (RIS) and PACS minimizes this requirement and increases the time during which actual image material from the BC is available online. A basic cache size covering actual imaging of 12 months up to 24 months is recommended. The parameters governing the individual dimensions of both cache spaces and a mathematical algorithm are demonstrated. (orig.)

  8. A project plan for construction and cabling of picture archiving and communication system network

    Institute of Scientific and Technical Information of China (English)

    罗敏; 王小林; 罗松; 雷文勇; 王学健; 温洪宇; 吴红星

    2003-01-01

    Objective To determine a network solution to meet the network requirements of the heavy data flow, load balance, and potential network storms from expansion of picture archiving and communication system (PACS) application.Methods Intel Netstructure 480T Giga Switch was used as the main switch and connected to each building by fiber channel at 1 Giga speed to archive 100 MB/s to each port. At the same time, the in-dependence of the original network construction was physically kept. The layer 3 and 4 switchers were used as load balance to reduce the heavy load of the network, and all the cabling for PACS used the super CAT5 along with the Intel NetStructure 1520 to prepare for potential network storms.Results An advanced intranet was set up to fully meet the high standard requirement of the PACS. The foundation for upgrading the whole network system to 1 Giga application was built to achieve sharing and transmission of images, information, and patient data within the hospital. The base was established for the standardized management of the hospital.Conclusion Good planning is the first step in setting up PACS, and the equipment from the necessary platform to run PACS and all kinds of hospital information system (HIS). The networking construction is the foundation of e-hospital.

  9. Dynamic artificial neural networks with affective systems.

    Science.gov (United States)

    Schuman, Catherine D; Birdwell, J Douglas

    2013-01-01

    Artificial neural networks (ANNs) are processors that are trained to perform particular tasks. We couple a computational ANN with a simulated affective system in order to explore the interaction between the two. In particular, we design a simple affective system that adjusts the threshold values in the neurons of our ANN. The aim of this paper is to demonstrate that this simple affective system can control the firing rate of the ensemble of neurons in the ANN, as well as to explore the coupling between the affective system and the processes of long term potentiation (LTP) and long term depression (LTD), and the effect of the parameters of the affective system on its performance. We apply our networks with affective systems to a simple pole balancing example and briefly discuss the effect of affective systems on network performance.

  10. Encoding Systems and Evolved Message Processing: Pictures Enable Action, Words Enable Thinking

    Directory of Open Access Journals (Sweden)

    Annie Lang

    2015-09-01

    Full Text Available This paper, based on theories of ecological perception, embodied motivated cognition, and evolutionary psychology, proposes that pictures elicit evolved biologically imperative responses more quickly and thoroughly than do words. These biologically imperative responses are directly responsible for evolved automatic reactions away from biological threats (e.g. escaping predators, avoiding disease and noxious stimuli and towards opportunities (e.g. consuming food, approaching mates, finding shelter in the environment. When elicited, these responses take time to occur and may delay or interfere with other types of behavior. Thus, when environmental information is presented in pictures (which should elicit larger biological responses than words biological responses should interfere more with higher order tasks like information processing and cognitive decision-making. To test this proposition we designed an experiment in which participants performed speeded categorizations of 60 pairs of matched pleasant and unpleasant environmental opportunities and threats. They categorized the items based on their form (is this a word or a picture? or based on how the picture made them feel (is this pleasant or unpleasant to you?. If pictures do elicit greater biologically imperative responses than their word counterparts, participants should be able to make form decisions faster than feeling decisions, especially when presented with words rather than pictures and especially when the words and pictures have less biological relevance. This main proposition was supported. Implications for this proposition in terms of communication theory are discussed.

  11. Picture archiving and communication system planning as a whole practice in step by step

    International Nuclear Information System (INIS)

    Objective: To discuss the whole design and to carry through the implement project in building picture archiving and communication system (PACS). Methods: All modalities with or without DICOM were integrated into PACS to store the whole images and share those resources. Windows NT and SQL 7.0 were used on the servers to store all kinds of patient image files, and those images could be viewed on all the web-based clinical workstations and the license was up to 100. RAID 5 online HDD which had the capability to store images for 3 months and DLT long term archive storage up to 7 T in size were built in the system. The PACS already finished the integration with RIS and HIS to expand images to the whole hospital and ready to be an imaging center of one area. Results: The founded typical PACS connected hospital equipments at present and realized primary no-film mode in department of radiology. The PACS had extended to the whole hospital clinical rooms, surgery, and emergency treatment room, etc. The PACS was connected to the HIS and networks of other hospitals. The center of image data was established, realizing the connection among the center of image data together with current area and other area hospitals. The PACS was easy to use for the doctors and improved the work efficiency. Conclusion: The practice has proved that current project related PACS planning as a whold practice in step by step is viable and successful

  12. Gaze Differences in Processing Pictures with Emotional Content

    OpenAIRE

    Budimir, Sanja; Palmović, Marijan

    2011-01-01

    The International Affective Picture System (IAPS) is a set of standardized emotionally evocative color photographs developed by NIMH Center for Emotion and Attention at the University of Florida. It contains more than 900 emotional pictures indexed by emotional valence, arousal and dominance. However, when IAPS pictures were used in studying emotions with the event-related potentials, the results have shown a great deal of variation and inconsistency. In this research arousal and dominance of...

  13. Reengineering the picture archiving and communication system (PACS) process for digital imaging networks PACS.

    Science.gov (United States)

    Horton, M C; Lewis, T E; Kinsey, T V

    1999-05-01

    Prior to June 1997, military picture archiving and communications systems (PACS) were planned, procured, and installed with key decisions on the system, equipment, and even funding sources made through a research and development office called Medical Diagnostic Imaging Systems (MDIS). Beginning in June 1997, the Joint Imaging Technology Project Office (JITPO) initiated a collaborative and consultative process for planning and implementing PACS into military treatment facilities through a new Department of Defense (DoD) contract vehicle called digital imaging networks (DIN)-PACS. The JITPO reengineered this process incorporating multiple organizations and politics. The reengineered PACS process administered through the JITPO transformed the decision process and accountability from a single office to a consultative method that increased end-user knowledge, responsibility, and ownership in PACS. The JITPO continues to provide information and services that assist multiple groups and users in rendering PACS planning and implementation decisions. Local site project managers are involved from the outset and this end-user collaboration has made the sometimes difficult transition to PACS an easier and more acceptable process for all involved. Corporately, this process saved DoD sites millions by having PACS plans developed within the government and proposed to vendors second, and then having vendors respond specifically to those plans. The integrity and efficiency of the process have reduced the opportunity for implementing nonstandard systems while sharing resources and reducing wasted government dollars. This presentation will describe the chronology of changes, encountered obstacles, and lessons learned within the reengineering of the PACS process for DIN-PACS. PMID:10342167

  14. Eye movement characteristics of college students' affective picture processing in positive and negative emotional states%积极和消极情绪状态下大学生加工情绪图片的眼动特征

    Institute of Scientific and Technical Information of China (English)

    高淑青; 隋雪; 张连成

    2012-01-01

    目的:探讨不同主体情绪状态下,个体对情绪图片加工的眼动特点.方法:选取35名大学生为被试,采用2(主体情绪状态:积极、消极)×2(图片情绪模式:积极、消极)的两因素被试内设计.通过情绪视频诱发被试的积极和消极情绪,使用ASL504型眼动仪记录被试观看不同情绪图片(积极、消极各4张,选自中国情绪图片系统)的眼动情况,眼动分析指标包括总注视时间、平均注视时间、注视次数、瞳孔直径、凝视次数.结果:被试在积极情绪比消极情绪时的平均注视时间长[ (0.51 ±0.13)s vs.(0.46±0.11)s;P<0.01]、瞳孔直径小[(4.7±0.8) mmvs.(5.2±0.9) mm;P<0.001]、注视次数少[ (27.3±6.2) vs.(30.0±8.0),P<0.05],观看积极图片较消极图片的总注视时间长[(14.7±3.1)s vs.(12.5±3.9)s;P<0.01],平均注视时间长[(0.51±0.14) s vs.(0.46±0.10)s;P<0.01],凝视次数多[(844.4±114.1) vs.(806.9±207.6);P<0.001],瞳孔直径小[(4.4±0.6)mmvs.(5.4±0.8)mm;P<0.001].在瞳孔直径、总注视时间、凝视次数三个指标上,主体情绪状态和图片情绪模式对图片信息加工产生交互影响.结论:个体处于积极和消极情绪状态下观看情绪图片的眼动模式不同,且主体情绪状态与图片情绪模式对图片加工具有协同作用,这在眼动指标上得到了表达.%Objective: To explore the eye movement characteristics in individuals affective picture processing in different emotional states. Methods: Totally 35 college students participated in this study. The experiment were conducted by 2 (positive and negative emotion state of subjects) × 2 (positive and negative pictures of emotional mode) within-subject designs. Mood induction procedures was applied to induce subjects' mood state, and the ASL504 Eye Tracking system was used to assess their affective picture processing (8 pictures including 4 positive pictures and 4 negative pictures were selected from the Chinese

  15. "Permanent" records: experience with data migration in radiology information system and picture archiving and communication system replacement.

    Science.gov (United States)

    Behlen, F M; Sayre, R E; Weldy, J B; Michael, J S

    2000-05-01

    In the replacement of both a radiology information system (RIS) and a picture archiving and communication system (PACS) archive, data were migrated from the prior system to the new system. We report on the process, the time and resources required, and the fidelity of data transfer. We find that for two PACS archives, both organized according to the Digital Imaging and Communications in Medicine (DICOM) information model, data may be transferred with full fidelity, but the time required for transfer is significant. Transfer from off-line backup media was found to be faster than transfer from our robotic tape library. In contrast, the RIS replacement required extensive labor to translate prior data between dissimilar information models, and some data were inevitably lost in the translation. Standards for RIS information models are needed to promote the migration of data without loss of content.

  16. Image fusion using MIM software via picture archiving and communication system

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    The preliminary studies of the multimodality image registration andfusion were performed using an image fusion software and a picture archiving andcommunication system (PACS) to explore the methodology. Original image voluminaldata were acquired with a CT scanner, MR and dual-head coincidence SPECT, respec-tively. The data sets from all imaging devices were queried, retrieved, transferred andaccessed via DICOM PACS. The image fusion was performed at thc SPECT ICONwork-station, where the MIM (Medical Image Merge) fusion software was installed.The images were created by reslicing original volume on the fly. The image volumeswere aligned by translation and rotation of these view ports with respect to the origi-nal volume orientation. The transparency factor and contrast were adjusted in orderthat both volumes can be visualized in the merged images. The image volume data ofCT, MR and nuclear medicine were transferred, accessed and loaded via PACS suc-cessfully. The perfect fused images of chest CT/18F-FDG and brain MR/SPECT wereobtained. These results showed that image fusion technique using PACS was feasibleand practical. Further experimentation and larger validation studies were needed toexplore the full potential of the clinical use.

  17. Experience measuring performance improvement in multiphase picture archiving and communications systems implementations.

    Science.gov (United States)

    Reed, G; Reed, D H

    1999-05-01

    When planning a picture archiving and communications system (PACS) implementation and determining which equipment will be implemented in earlier and later phases, collection and analysis of selected data will aid in setting implementation priorities. If baseline data are acquired relative to performance objectives, the same information used for implementation planning can be used to measure performance improvement and outcomes. The main categories of data to choose from are: (1) financial data; (2) productivity data; (3) operational parameters; (4) clinical data; and (5) information about customer satisfaction. In the authors' experience, detailed workflow data have not proved valuable in measuring PACS performance and outcomes. Reviewing only one category of data in planning will not provide adequate basis for targeting operational improvements that will lead to the most significant gains. Quality improvement takes into account all factors in production: human capacity, materials, operating capital and assets. Once we have identified key areas of focus for quality improvement in each phase, we can translate objectives into implementation requirements and finally into detailed functional and performance requirements. Here, Integration Resources reports its experience measuring PACS performance relative to phased implementation strategies for three large medical centers. Each medical center had its own objectives for overcoming image management, physical/geographical, and functional/technical barriers. The report outlines (1) principal financial and nonfinancial measures used as performance indicators; (2) implementation strategies chosen by each of the three medical centers; and (3) the results of those strategies as compared with baseline data. PMID:10342194

  18. Experience measuring performance improvement in multiphase picture archiving and communications systems implementations.

    Science.gov (United States)

    Reed, G; Reed, D H

    1999-05-01

    When planning a picture archiving and communications system (PACS) implementation and determining which equipment will be implemented in earlier and later phases, collection and analysis of selected data will aid in setting implementation priorities. If baseline data are acquired relative to performance objectives, the same information used for implementation planning can be used to measure performance improvement and outcomes. The main categories of data to choose from are: (1) financial data; (2) productivity data; (3) operational parameters; (4) clinical data; and (5) information about customer satisfaction. In the authors' experience, detailed workflow data have not proved valuable in measuring PACS performance and outcomes. Reviewing only one category of data in planning will not provide adequate basis for targeting operational improvements that will lead to the most significant gains. Quality improvement takes into account all factors in production: human capacity, materials, operating capital and assets. Once we have identified key areas of focus for quality improvement in each phase, we can translate objectives into implementation requirements and finally into detailed functional and performance requirements. Here, Integration Resources reports its experience measuring PACS performance relative to phased implementation strategies for three large medical centers. Each medical center had its own objectives for overcoming image management, physical/geographical, and functional/technical barriers. The report outlines (1) principal financial and nonfinancial measures used as performance indicators; (2) implementation strategies chosen by each of the three medical centers; and (3) the results of those strategies as compared with baseline data.

  19. EEG study on affective valence elicited by novel and familiar pictures using ERD/ERS and SVM-RFE.

    Science.gov (United States)

    Hidalgo-Muñoz, A R; López, M M; Galvao-Carmona, A; Pereira, A T; Santos, I M; Vázquez-Marrufo, M; Tomé, A M

    2014-02-01

    EEG signals have been widely explored in emotional processing analyses, both in time and frequency domains. However, in such studies, habituation phenomenon is barely considered in the discrimination of different emotional responses. In this work, spectral features of the event-related potentials (ERPs) are studied by means of event-related desynchronization/synchronization computation. In order to determine the most relevant ERP features for distinguishing how positive and negative affective valences are processed within the brain, support vector machine-recursive feature elimination is employed. The proposed approach was applied for investigating in which way the familiarity of stimuli affects the affective valence processing as well as which frequency bands and scalp regions are more involved in this process. In a group composed of young adult women, results prove that parietooccipital region and theta band are especially involved in the processing of novelty in emotional stimuli. Furthermore, the proposed method has shown to perform successfully using a moderated number of trials. PMID:24257836

  20. Comparative Efficacy of the Picture Exchange Communication System (PECS) versus a Speech-Generating Device: Effects on Requesting Skills

    Science.gov (United States)

    Boesch, Miriam C.; Wendt, Oliver; Subramanian, Anu; Hsu, Ning

    2013-01-01

    An experimental, single-subject research study investigated the comparative efficacy of the Picture Exchange Communication System (PECS) versus a speech-generating device (SGD) in developing requesting skills for three elementary-age children with severe autism and little to no functional speech. Results demonstrated increases in requesting…

  1. Teaching Children with Autism to Engage in Peer-Directed Mands Using a Picture Exchange Communication System

    Science.gov (United States)

    Paden, Amber R.; Kodak, Tiffany; Fisher, Wayne W.; Gawley-Bullington, Elizabeth M.; Bouxsein, Kelly J.

    2012-01-01

    We evaluated differential reinforcement of alternative behavior (DRA) plus prompting to increase peer-directed mands for preferred items using a picture exchange communication system (PECS). Two nonvocal individuals with autism participated. Independent mands with a peer increased with the implementation of DRA plus prompting for both…

  2. Impact of picture archiving communication systems on rates of duplicate imaging: a before-after study

    Directory of Open Access Journals (Sweden)

    Yun Lingsong

    2008-11-01

    Full Text Available Abstract Background Electronic health information systems, such as picture archiving communication systems (PACS, are commonly believed to reduce the need for duplicate testing. However, empirical data to support this belief are not available. Methods Before-after study using administrative claims data from the Ontario Health Insurance Plan to determine whether the introduction of PACS at 10 hospitals in the Thames Valley region of southwestern Ontario, Canada between June 2004 and December 2005 reduced the frequency of duplicate imaging examinations. The imaging modalities studied were: chest and abdominal X-ray; computed tomography of the abdomen/pelvis, head, and chest. The frequency of duplicate testing was examined at 3 different time frames: 7 days, 30 days, and 60 days after a given index test. Results Overall frequencies of duplicate imaging were: 2.7% within 7 days of an index imaging test, 6.7% within 30 days, and 9.8% within 60 days. Comparing the 12 months before and 12 months after PACS, absolute reductions in the frequency of duplicate X-rays using 7-day, 30-day, and 60-day time frames were: 0.2% (P = 0.01, 0.6% (P increases in the frequency of duplicate CT scans after PACS of 0.0% (P = 0.92, 0.5% (P = 0.01, and 0.5% (P = 0.01, respectively. Conclusion The frequency of duplicate imaging is relatively low and we did not find large reductions in duplicate imaging after the introduction of PACS. Independent evaluation of electronic medical systems should be conducted to confirm widely held beliefs of their potential benefits.

  3. Anatomy of picture archiving and communications systems: Nuts and bolts—Image acquisition: Getting digital images from imaging modalities

    OpenAIRE

    Andriole, Katherine P.

    1999-01-01

    Digital acquisition of data from the various imaging modalities for input to a picture archiving and communication system (PACS) is discussed. Essential features for successful clinical implementation including Digital Imaging and Communications in Medicine (DICOM) compliance, radiology information system (RIS)/hospital information system (HIS) interfacing, and workflow integration are detailed. Image acquisition from the inherently digital cross-sectional modalities are described, as well as...

  4. User Acceptance of Picture Archiving and Communication System in the Emergency Department

    Science.gov (United States)

    Goodarzi, Hassan; Khatami, Seyed-Masoud; Javadzadeh, Hammidreza; Mahmoudi, Sadrollah; Khajehpour, Hojjatollah; Heidari, Soleiman; Khodaparast, Morteza; Ebrahimi, Ali; Rasouli, Hamidreza; Ghane, Mohammadreza; Faraji, Mehrdad; Hassanpour, Kasra

    2016-01-01

    Background Picture archiving and communication system (PACS) has allowed the medical images to be transmitted, stored, retrieved, and displayed in different locations of a hospital or health system. Using PACS in the emergency department will eventually result in improved efficiency and patient care. In spite of the abundant benefits of employing PACS, there are some challenges in implementing this technology like users’ resistance to accept the technology, which has a critical role in PACS success. Objectives In this study, we will assess and compare user acceptance of PACS in the emergency departments of three different hospitals and investigate the effect of socio-demographic factors on this acceptance. Materials and Methods A variant of technology acceptance model (TAM) has been used in order to measure the acceptance level of PACS in the emergency department of three educational hospitals in Iran. A previously used questionnaire was validated and utilized to collect the study data. A stepwise multiple regression model was used to predict factors influencing acceptance score as the dependent variable. Results Mean age of participants was 32.9 years (standard deviation [SD] = 6.08). Participants with the specialty degree got a higher acceptance score than the three other groups (Mean ± SD = 4.17 ± 0.20). Age, gender, degree of PACS usage and participant’s occupation (profession) did not influence the acceptance score. In our multiple regression model, all three variables of perceived usefulness (PU), perceived ease of use (PEU) and the effect of PACS (change) had a significant effect in the prediction of acceptance. The most influencing factor was change with the beta of 0.22 (P value change are factors influencing PACS acceptance. Our study can be used as an evidence of PACS acceptance in emergency wards.

  5. Electronic teaching files: seven-year experience using a commercial picture archiving and communication system.

    Science.gov (United States)

    Siegel, E; Reiner, B

    2001-06-01

    With the advent of electronic imaging and the internet, the ability to create, search, access, and archive digital imaging teaching files has dramatically improved. Despite the fact that a picture archival and communication system (PACS) has the potential to greatly simplify the creation of, archival, and access to a department or multifacility teaching file, this potential has not yet been satisfactorily realized in our own and most other PACS installations. Several limitations of the teaching file tools within our PACS have become apparent over time. These have, at our facility, resulted in a substantially reduced role of the teaching file tools for conferences, daily teaching, and research purposes. With the PACS at our institution, academic folders can only be created by the systems engineer, which often serves as an impediment to the teaching process. Once these folders are created, multiple steps are required to identify the appropriate folders, and subsequently save images. Difficulties exist for those attempting to search for the teaching file images. Without pre-existing knowledge of the folder name and contents, it is difficult to query the system for specific images. This is due to the fact that there is currently no fully satisfactory mechanism for categorizing, indexing, and searching cases using the PACS. There is currently no easy mechanism to save teaching, research, or clinical files onto a CD or other removable media or to automatically strip demographic or other patient information from the images. PACS vendors should provide much more sophisticated tools to create and annotate teaching file images in an easy to use but standard format (possibly Radiological Society of North America's Medical Image Resource Center [MIRC] format) that could be exchanged with other sites and other vendors' PAC systems. The privilege to create teaching or conference files should be given to the individual radiologists, technologists, and other users, and an audit

  6. Effect of Non-negative Chinese Affective Pictures on Patients with Chronic Pain%非负性中国情感图片对慢性疼痛患者的影响

    Institute of Scientific and Technical Information of China (English)

    王婷婷; 史婷奇

    2016-01-01

    Objective To study the effect of non-negative Chinese affective pictures on the pain of patients with chronic pain. Methods A total of 77 hospitalized patients with chronic pain, according to admission number, were divided into intervention group and control group. In intervention group, routine nursing for pain and non-negative pictures from CAPS (non-negative Chinese affective picture system) were conducted and applied but in control group only routine nursing for pain was performed. NRS (numerical rating scale) was used for pain assessment in two groups. Results After intervention for 6 times, the NRS score of intervention group was lower than that of control group and the difference indicated statistical significance ( P<0.05). Conclusion Non-negative Chinese affective pictures can reduce the pain of patients.%目的:研究非负性中国情感图片对慢性疼痛患者疼痛的影响。方法将77例慢性疼痛的住院患者按住院号单双号分为干预组和对照组。干预组采用疼痛科护理常规和非负性中国情感图片疗法,对照组采用疼痛科护理常规,采集2组疼痛数字评分法(Numerical Ratingscale,NRS)的结果并进行2组干预前后疼痛数字评分法得分比较。结果干预6次后,干预组的疼痛数字评分低于对照组,差异有统计学意义(P<0.05)。结论非负性中国情感图片可以减轻患者疼痛程度。

  7. The impact of a picture archiving and communication system (PACS) upon an intensive care unit

    International Nuclear Information System (INIS)

    Objective: The aim of the study was to assess the effect of the introduction of PACS (Picture Archiving and Communication System) upon image availability in an Intensive Care Unit (ICU) and the consequent impact upon the behaviour of the ICU physicians, in terms of the initiation of image-based clinical actions. Design: A before and after study was used to compare the speed of image availability prior to, and following, the implementation of a hospital-wide PACS. Setting: The research was part of an economic evaluation of PACS at Hammersmith Hospital, West London. Patients and participants: All ICU patients who were X-rayed during two pre-PACS and one post-PACS data collection periods were included within the study. Measurements: The times of: the X-ray request; acquisition; availability on ICU; and of any image-based clinical action taken by the ICU physician were recorded by radiographers and ICU physicians. Results: PACS significantly reduced the time between request and image availability on ICU for routine X-rays but did not have any measurable impact upon the time clinical actions were initiated by ICU physicians. The data on non-routine images were statistically inconclusive. Conclusions: This study shows that PACS significantly improves the speed of delivery of routine images to the ICU, but it appears that the instigation of image-based clinical actions is determined by other organisational factors in ICU, such as ward rounds, rather than the availability of the image for viewing. Further work is required on non-routine X-rays to clarify the impact of PACS on physician behaviour in clinically urgent situations

  8. Quantum phase diagrams and time-of-flight pictures of spin-1 Bose systems in honeycomb optical lattices

    Science.gov (United States)

    Zhang, Jun; Jiang, Ying

    2016-09-01

    By treating the hopping parameter as a perturbation, with the help of cumulant expansion and the re-summing technique, the one-particle Green’s function of a spin-1 Bose system in a honeycomb optical lattice is calculated analytically. By the use of the re-summed Green’s function, the quantum phase diagrams of the system in ferromagnetic cases as well as in antiferromagnetic cases are determined. It is found that in antiferromagnetic cases the Mott insulating states with even filling factor are more robust against the hopping parameter than that with odd filling factor, in agreement with results via other different approaches. Moreover, in order to illustrate the effectiveness of the re-summed Green’s function method in calculating time-of-flight pictures, the momentum distribution function of a honeycomb lattice spin-1 Bose system in the antiferromagnetic case is also calculated analytically and the corresponding time-of-flight absorption pictures are plotted.

  9. [Development of a batched image delete system for multi-vender picture archiving and communication system environment].

    Science.gov (United States)

    Yamada, Kenji; Amano, Masafumi; Yuasa, Masao; Yamamoto, Yuichiro; Tada, Akihisa; Harada, Masafumi

    2014-01-01

    A picture archiving and communication system (PACS) for multi-vendor imaging servers is useful, since it can provide a variety of image-processing services. However, to delete an image file in the PACS, it is necessary to delete not only the image but all its associated images that are stored in multiple servers: this is a lengthy and painstaking process. To reduce this workload, we have developed a system consisting of a computer program with a graphical user interface that can delete the target image and all related images by means of batch processing. The developed system creates an extensible markup language (XML)-format file that describes the operation for deleting an image and forwards the XML file to the main server. Using a Windows file-sharing system (SMB/CIFS), each server shares the XML file and deletes the images in its own database in response to the instructions described in the XML file. We can also rigorously manage information concerning the deleted images using the information that is output from the main server to external storage. We also discuss the degree of load reduction in our system compared with that of ordinary systems.

  10. Different Loci of Semantic Interference in Picture Naming vs. Word-Picture Matching Tasks.

    Science.gov (United States)

    Harvey, Denise Y; Schnur, Tatiana T

    2016-01-01

    Naming pictures and matching words to pictures belonging to the same semantic category impairs performance relative to when stimuli come from different semantic categories (i.e., semantic interference). Despite similar semantic interference phenomena in both picture naming and word-picture matching tasks, the locus of interference has been attributed to different levels of the language system - lexical in naming and semantic in word-picture matching. Although both tasks involve access to shared semantic representations, the extent to which interference originates and/or has its locus at a shared level remains unclear, as these effects are often investigated in isolation. We manipulated semantic context in cyclical picture naming and word-picture matching tasks, and tested whether factors tapping semantic-level (generalization of interference to novel category items) and lexical-level processes (interactions with lexical frequency) affected the magnitude of interference, while also assessing whether interference occurs at a shared processing level(s) (transfer of interference across tasks). We found that semantic interference in naming was sensitive to both semantic- and lexical-level processes (i.e., larger interference for novel vs. old and low- vs. high-frequency stimuli), consistent with a semantically mediated lexical locus. Interference in word-picture matching exhibited stable interference for old and novel stimuli and did not interact with lexical frequency. Further, interference transferred from word-picture matching to naming. Together, these experiments provide evidence to suggest that semantic interference in both tasks originates at a shared processing stage (presumably at the semantic level), but that it exerts its effect at different loci when naming pictures vs. matching words to pictures.

  11. Ghosts, UFOs, and magic: positive affect and the experiential system.

    Science.gov (United States)

    King, Laura A; Burton, Chad M; Hicks, Joshua A; Drigotas, Stephen M

    2007-05-01

    Three studies examined the potential interactions of the experiential system and positive affect (PA) in predicting superstitious beliefs and sympathetic magic. In Study 1, experientiality and induced positive mood interacted to predict the emergence of belief in videos purporting to show unidentified flying objects or ghosts. In Study 2, naturally occurring PA interacted with experientiality to predict susceptibility to sympathetic magic, specifically difficulty in throwing darts at a picture of a baby (demonstrating the law of similarity). In Study 3, induced mood interacted with experientiality to predict sitting farther away from, and expressing less liking for, a partner who had stepped in excrement (demonstrating the law of contagion). Results are interpreted as indicating that PA promotes experiential processing. Implications for the psychology of nonrational beliefs and behaviors are discussed. PMID:17484612

  12. Recent developments in affective recommender systems

    Science.gov (United States)

    Katarya, Rahul; Verma, Om Prakash

    2016-11-01

    Recommender systems (RSs) are playing a significant role since 1990s as they provide relevant, personalized information to the users over the internet. Lots of work have been done in information filtering, utilization, and application related to RS. However, an important area recently draws our attention which is affective recommender system. Affective recommender system (ARS) is latest trending area of research, as publication in this domain are few and recently published. ARS is associated with human behaviour, human factors, mood, senses, emotions, facial expressions, body gesture and physiological with human-computer interaction (HCI). Due to this assortment and various interests, more explanation is required, as it is in premature phase and growing as compared to other fields. So we have done literature review (LR) in the affective recommender systems by doing classification, incorporate reputed articles published from the year 2003 to February 2016. We include articles which highlight, analyse, and perform a study on affective recommender systems. This article categorizes, synthesizes, and discusses the research and development in ARS. We have classified and managed ARS papers according to different perspectives: research gaps, nature, algorithm or method adopted, datasets, the platform on executed, types of information and evaluation techniques applied. The researchers and professionals will positively support this survey article for understanding the current position, research in affective recommender systems and will guide future trends, opportunity and research focus in ARS.

  13. Aversive picture processing: effects of a concurrent task on sustained defensive system engagement.

    Science.gov (United States)

    Wangelin, Bethany C; Löw, Andreas; McTeague, Lisa M; Bradley, Margaret M; Lang, Peter J

    2011-01-01

    Viewing a series of aversive pictures prompts emotional reactivity reflecting sustained defensive engagement. The present study examined the effects of a concurrent visual task on autonomic, somatic, electrocortical, and facial components of this defensive state. Results indicated that emotional activation was largely preserved despite continuous visual distraction, although evidence of attenuation was observed in startle reflex and electrocortical measures. Concurrent task-specific reactivity was also apparent, suggesting that motivational circuits can be simultaneously activated by stimuli with intrinsic survival significance and instructed task significance and that these processes interact differently across the separate components of defensive engagement.

  14. Erotic subset for the Nencki Affective Picture System (NAPS ERO): cross-sexual comparison study

    OpenAIRE

    Wierzba, Małgorzata; Riegel, Monika; Pucz, Anna; Leśniewska, Zuzanna; Dragan, Wojciech Ł.; Gola, Mateusz; Jednoróg, Katarzyna; Marchewka, Artur

    2015-01-01

    Research on the processing of sexual stimuli has proved that such material has high priority in human cognition. Yet, although sex differences in response to sexual stimuli were extensively discussed in the literature, sexual orientation was given relatively little consideration, and material suitable for relevant research is difficult to come by. With this in mind, we present a collection of 200 erotic images, accompanied by their self-report ratings of emotional valence and arousal by homo-...

  15. Gaussification and entanglement distillation of continuous variable systems: a unifying picture

    Energy Technology Data Exchange (ETDEWEB)

    Campbell, Earl; Eisert, Jens [Dahlem Center for Complex Quantum Systems, Freie Universitaet Berlin, 14195 Berlin (Germany)

    2012-07-01

    Distillation of entanglement using only Gaussian operations is an important primitive in quantum communication, quantum repeater architectures, and distributed quantum computing. Existing distillation protocols for continuous degrees of freedom are only known to converge to a Gaussian state when measurements yield precisely the vacuum outcome. In sharp contrast, non-Gaussian states can be deterministically converted into Gaussian states while preserving their second moments, albeit by usually reducing their degree of entanglement. In this work - based on a novel instance of a non-commutative central limit theorem - we introduce a picture general enough to encompass the known protocols leading to Gaussian states, and also demonstrate convergence for a class of new protocols. This gives the experimental option of balancing the merits of success probability against entanglement produced. The generality of results also opens up entirely new territory, by providing means of multi-partite distillation and more efficient hybrid quantum repeater schemes.

  16. An evaluation of multiple-schedule variations to reduce high-rate requests in the picture exchange communication system.

    Science.gov (United States)

    Landa, Robin; Hanley, Gregory P

    2016-06-01

    Using procedures similar to those of Tiger, Hanley, and Heal (2006), we compared two multiple-schedule variations (S+/S- and S+ only) to treat high-rate requests for edible items in the Picture Exchange Communication System (PECS). Two individuals with autism participated, after they showed persistent requests for edible items after PECS training. Stimulus control was achieved only with the multiple schedule that involved presentation of a discriminative stimulus during reinforcement components and its removal during extinction components (S+ only). Discriminated requests were maintained for the 1 participant who experienced schedule thinning. PMID:26814152

  17. The picture editor E82

    International Nuclear Information System (INIS)

    The program E82 is an interactive picture-editor for creating, manipulating and displaying pictures. It is based on the standardized Graphical Kernel System and is coded in the programming language FORTRAN 77. Besides general picture editing capabilities, the editor E82 contains a presentation graphics module for generating charts from given data values. The user communication is controlled by a command processor that handles commands, macros and graphical interactions. This report contains the user guide for the editor E82. (orig.)

  18. The Study of Affective Education in Children’s Picture Book Reading%幼儿绘本阅读中的情感教育研究

    Institute of Scientific and Technical Information of China (English)

    王翔钰

    2014-01-01

    Picture book as pre-school children to contact most books plays an important role in strengthening the emotional education of infants. Therefore,preschool teachers must learn to emotional education in reading picture books,innovative teaching methods,and cultivate a positive emotion of children.%绘本作为学前儿童接触最多的读物对加强幼儿情感教育具有重要作用。为此,学前教师必须学会将情感教育渗透在绘本阅读中和教学方向中。

  19. Streamlining the discovery, evaluation, and integration of data, models, and decision support systems: a big picture view (Invited)

    Science.gov (United States)

    Laniak, G.

    2013-12-01

    21st century environmental problems are wicked and require holistic systems thinking and solutions that integrate social and economic knowledge with knowledge of the environment. Computer-based technologies are fundamental to our ability to research and understand the relevant systems and to provide assessors and decision makers with appropriate data, tools, and strategies. There are significant science and technology challenges being confronted in an effort to streamline the movement of knowledge from its research and experience-based sources to its decision endpoints. In this presentation we explore this continuum and attempt to articulate a holistic and coherent picture of the relationship among the myriad elements of the environmental problem solving landscape. This is done in the hope that this view will enhance the ability of all environmental stakeholders to express their individual contributions in a technological form that will be accessible and usable to the greater community.

  20. Practical considerations for picture archiving and communications systems over the enterprise network

    OpenAIRE

    Miller, M. Terry; McLaurin, Chris

    1999-01-01

    Network design is a vital element of any PACS implementation. The involvement of Information Systems in PACS planning and implementation is essential to the long-term success of the PACS’s implementation and operation.

  1. Integrated, systems metabolic picture of acetone-butanol-ethanol fermentation by Clostridium acetobutylicum.

    Science.gov (United States)

    Liao, Chen; Seo, Seung-Oh; Celik, Venhar; Liu, Huaiwei; Kong, Wentao; Wang, Yi; Blaschek, Hans; Jin, Yong-Su; Lu, Ting

    2015-07-01

    Microbial metabolism involves complex, system-level processes implemented via the orchestration of metabolic reactions, gene regulation, and environmental cues. One canonical example of such processes is acetone-butanol-ethanol (ABE) fermentation by Clostridium acetobutylicum, during which cells convert carbon sources to organic acids that are later reassimilated to produce solvents as a strategy for cellular survival. The complexity and systems nature of the process have been largely underappreciated, rendering challenges in understanding and optimizing solvent production. Here, we present a system-level computational framework for ABE fermentation that combines metabolic reactions, gene regulation, and environmental cues. We developed the framework by decomposing the entire system into three modules, building each module separately, and then assembling them back into an integrated system. During the model construction, a bottom-up approach was used to link molecular events at the single-cell level into the events at the population level. The integrated model was able to successfully reproduce ABE fermentations of the WT C. acetobutylicum (ATCC 824), as well as its mutants, using data obtained from our own experiments and from literature. Furthermore, the model confers successful predictions of the fermentations with various network perturbations across metabolic, genetic, and environmental aspects. From foundation to applications, the framework advances our understanding of complex clostridial metabolism and physiology and also facilitates the development of systems engineering strategies for the production of advanced biofuels. PMID:26100881

  2. Performance Enhancement of a Web-Based Picture Archiving and Communication System Using Commercial Off-the-Shelf Server Clusters

    Directory of Open Access Journals (Sweden)

    Yan-Lin Liu

    2014-01-01

    Full Text Available The rapid development of picture archiving and communication systems (PACSs thoroughly changes the way of medical informatics communication and management. However, as the scale of a hospital’s operations increases, the large amount of digital images transferred in the network inevitably decreases system efficiency. In this study, a server cluster consisting of two server nodes was constructed. Network load balancing (NLB, distributed file system (DFS, and structured query language (SQL duplication services were installed. A total of 1 to 16 workstations were used to transfer computed radiography (CR, computed tomography (CT, and magnetic resonance (MR images simultaneously to simulate the clinical situation. The average transmission rate (ATR was analyzed between the cluster and noncluster servers. In the download scenario, the ATRs of CR, CT, and MR images increased by 44.3%, 56.6%, and 100.9%, respectively, when using the server cluster, whereas the ATRs increased by 23.0%, 39.2%, and 24.9% in the upload scenario. In the mix scenario, the transmission performance increased by 45.2% when using eight computer units. The fault tolerance mechanisms of the server cluster maintained the system availability and image integrity. The server cluster can improve the transmission efficiency while maintaining high reliability and continuous availability in a healthcare environment.

  3. [Systemic karyomegaly with chronic interstitial nephritis. Discussion of the disease picture based on an autopsy case].

    Science.gov (United States)

    Moch, H; Spöndlin, M; Schmassmann, A; Mihatsch, M J

    1994-02-01

    Systemic karyomegaly associated with interstitial nephritis was first described in 1978 by Mihatsch. Seven cases have been reported to date. We give an account of an autopsy case of systemic karyomegaly in a 30-year-old Italian man. Bizarre enlargement of nuclei was found in renal tubular epithelial cells, Schwann cells and in smooth muscle cells of vessels and bowel and, less obviously, in endothelial and adventitial cells of vessels, in alveolar epithelial cells and in astrocytes of the brain. These findings were associated with chronic interstitial nephritis, nonspecific hepatopathy, adenocarcinoma of the rectum and multiple sclerosis. The clinical course was marked by chronic renal failure, chronic haemodialysis and renal transplantation. The patient died 8 years after diagnosis in septic-toxic shock. The aetiology and pathogenesis of the disease are discussed.

  4. Early experience with a picture archiving and communication system for X-ray CT

    International Nuclear Information System (INIS)

    A network using fiberoptic ring architecture has been implemented to connect an x-ray CT unit with an image work station and optical disk storage unit. The work station has three noninterlaced cathode-ray tube (CRT) monitors of 1,024 X 1,024 pixels. The optical disk system stores 32 optical disk cartridges (2.6 Gbytes per cartridge). A general-purpose interface bus is used for communication between the CT unit and the network interface unit. Transfer time from CT to interface unit is 40 kbyte/second, 5 seconds per image. On-line data acquisition, long-term archiving, and CT interpretation using CRTs have been tested and the system has been working for 3 months in a clinical environment

  5. DESCRIPTION OF THE IMPLEMENTATION OF PACS (PICTURE ARCHIVING AND COMMUNICATION SYSTEM IN A HOSPITAL-SCHOOL TO REDUCE OPERATING COSTS

    Directory of Open Access Journals (Sweden)

    CRISTIANE PRISCILA GALINA DA SILVA

    2012-01-01

    Full Text Available The PACS (Picture Archiving and Communication System - Communication and Image Archiving was a big technological step for the hospital area, saving time and money, and ensuring the security of data, factors that are important to any organization. It is an archiving and communication system used for diagnostic imaging in digital format that allows immediate access to medical images in any area of a hospital. PACS is also a 'green solution',because by eliminating the radiographic films actually protects the environment and also promotes the expansion of the scope for expansion of care and diagnostics, allowing the participation of other professionals in the decision- and the expansion of diagnostic methods. The aim of this study was to describe the implementation of a PACS system in a teaching hospital, to reduce operating costs due to less use of radiological products such as films and chemicals, thus becoming one of the main reasons that lead hospitals to opt for the deployment of PACS. The practical work was conducted at Hospital das Clinicas (HC, Faculty of Medicine of Botucatu (FMB and had regular visits in order to examine the implementation of PACS used in the field of x-ray for archiving and aid diagnosis using digital images.

  6. Study of Radiologic Technologists' Perceptions of Picture Archiving and Communication System (PACS) Competence and Educational Issues in Western Australia.

    Science.gov (United States)

    Floyd, Daniel M; Trepp, Errol R; Ipaki, Maryam; Ng, Curtise K C

    2015-06-01

    Although the implementation of picture archiving and communication system (PACS) could increase productivity of radiology departments, this depends on factors such as the PACS competence of radiologic technologists (RTs). The purpose of this study was to investigate the RTs' perceptions of PACS competence and educational issues in Western Australia (WA). A hardcopy questionnaire was distributed to WA RTs for obtaining their perceptions of PACS competence and educational issues. Descriptive (percentage of frequency, mean and standard deviation) and inferential statistics (t test and analysis of variance) were used to analyze the responses of the multiple choice and five-point scale questions from the returned questionnaires. The questionnaire response rate was 57.7% (173 out of 300). The mean values of all PACS competence questions except questions 2e-g are in the range of 3.9-4.9, i.e., around competent to very competent. Participants indicated they received adequate PACS training (mean 3.8). Statistically significant variables influencing RTs' perceptions of their PACS competence and educational issues including the age (p competent in using the modality workstation, PACS and radiology information system, and received adequate training. However, future PACS education programs should be tailored to different RTs' groups. For example, multiple training modules might be necessary to support the PACS competence development of older RTs and those with lower general computer literacy.

  7. Usability Evaluation of Ulite Web-Based Picture Archiving and communication Systems Software in Shiraz University of Medical Science Hospitals

    Directory of Open Access Journals (Sweden)

    Somayyeh Zakerabasali

    2015-10-01

    Full Text Available Introduction: Health information systems have the potential of improving the quality of healthcare and treatment procedures and supporting the physicians in their clinical diagnoses. Nowadays, evaluating the usability is widely accepted as a crucial factor in the acceptance and success of the interactive healthcare systems. The present study aimed to evaluate the usability of Ulite Software based on the ISO 9241 model. Method: This analytical-empirical study was performed in 2014. The target population consisted of 50 Utile Software users. The data were collected througha valid and reliable questionnaire containing questions from 10 valid and reliable questionnaires on the related field. The content validity of the questionnaire was evaluated and confirmed by the scholars and experts in Picture Archiving and Communication Systems (PACS and the reliability was estimated through statistical procedures using Chronbach’s alpha Test (α=0.958 . Data were analyzed in SPSS 20 using descriptive statistics and Smart-PLS version 3, using Structural Equation Method and Partial Least Square Approach. Results:The obtained results of the simultaneous analysis of all constructs regarding ISO 9241 model indicated a positive effect of “effectiveness” (P-value= 0.05 and “satisfaction” (P-value= 0.00 on the usability of web-based PACS, while the effect of “efficiency” (P-value= 0.68 was not confirmed. Conclusion: Usability evaluation of Ulite software in the demo version was performed based on the ISO 9241 model. Based on the results, it seems that this software has the necessary effectiveness and user satisfaction has been somewhat successful, but since the evaluation in the demo version aimed to purchasethe system and eliminate initial problems,we should focus on the deficiencies that decrease the efficiency of the system

  8. Behavioral modulation by mutilation pictures in women

    Directory of Open Access Journals (Sweden)

    Pereira M.G.

    2004-01-01

    Full Text Available Previous studies have shown that women are more emotionally expressive than men. It is unclear, however, if women are also more susceptible to the emotional modulation of behavior imposed by an affective stimulus. To investigate this issue, we devised a task in which female subjects performed six sequential trials of visual target detection following the presentation of emotional (mutilation and erotic or neutral pictures (domestic utensils and objects and compared the data obtained in the present study with those described in a previous study with male subjects. The experiment consisted of three blocks of 24 pictures and each block had an approximate duration of 4 min. Our sample consisted of 36 subjects (age range: 18 to 26 years and each subject performed all blocks. Trials following the presentation of mutilation pictures (283 ms had significantly slower reaction times than those following neutral (270 ms pictures. None of the trials in the "pleasant block" (271 ms was significantly different from those in the "neutral block". The increase in reaction time observed in the unpleasant block may be related in part to the activation of motivational systems leading to an avoidance behavior. The interference effect observed in this study was similar to the pattern previously described for men. Thus, although women may be more emotionally expressive, they were not more reactive to aversive stimuli than men, as measured by emotional interference in a simple reaction time task.

  9. Do hospital physicians really want to go digital? Acceptance of a picture archiving and communication system in a university hospital

    International Nuclear Information System (INIS)

    Purpose: radiology departments are making the transition from analog film to digital images by means of PACS (Picture Archiving and Communication System). It is critical for the hospital that its physicians adopt and accept the new digital work method regarding radiological information. The aim of this study is to investigate hospital physicians' acceptance of PACS using questionnaires pre- and post-implementation and to identify main influencing factors. Materials and methods: the study was conducted in an 1169 bed university hospital. The UTAUT (Unified Theory of Acceptance and Use of Technology) questionnaire was administered at two times: one month pre-implementation (T1) and 1.5 years post-implementation (T2) of PACS, targeting all hospital physicians with the exemption of radiologists. The UTAUT scales (Behavioral Intention BI; Facilitating Conditions FC; Effort Expectancy EE; Performance Expectancy PE; Anxiety ANX; Social Influence SI; System Use USE; Attitude toward technology ATT; Self-Efficacy SE) were used to assess questions regarding: (a) PACS' usefulness, (b) PACS' ease of learning/using, (c) PACS support availability, (d) the perceived pressure to use PACS, (e) physicians' attitude towards PACS and (f) physicians' intention to use and actual use of PACS. Results: at T1 scale ratings were positive toward the PACS implementation. The ratings on all scales with the exception of self-efficacy improved at T2. Regression analysis revealed that the key factor for intention to use PACS at T1 was the usefulness of PACS, while the availability and awareness of support was its most important predictor at T2. Overall, PE was the best predictor of BI, but all four UTAUT-determinants (PE, FC, EE and SI) were salient for its prediction. Variance explained in BI ranged from 31 to 37% while variance explained in USE was very low (3%). (orig.)

  10. Survey of the Use Pattern and Satisfaction of Mobile Picture Archiving and Communication System Users with Tablet Personal Computer

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Ji Hyun; Park, Hee Jin; Lee, So Yeon; Chung, Eun Chul; Park, Hae Won [Dept. of f Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul (Korea, Republic of); Jeon, Yong Hwan; Kim, Sam Soo [Dept. of f Radiology, School of Medicine, Kangwon National University, Chuncheon (Korea, Republic of); Park, Hyo Soon [Dept. of Laboratory Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul (Korea, Republic of)

    2013-01-15

    The purpose of this study is to investigate the use pattern, satisfaction, dissatisfaction, and general opinion of the physicians from mobile Picture Archiving and Communication System (PACS) use with galaxy tab 10.1. A survey questionnaire was distributed to 146 physicians of one medical center, and a total of 105 physicians responded. The questionnaire aimed to investigate of the physicians' use pattern, convenience, discomforts, satisfaction, degree of help to diagnose and treat, general opinion, and other opinions. The responses elicited, as well as discrepancies among the departments, and ages were assessed. Chi-square and Fisher's exact were used to determine the value of data. The frequency of usage of the mobile PACS by the medical (75%) and surgical (78%) clinicians was higher than the supporting clinicians (48%) (p = 0.017). The uses and time of utilizing showed statistically significant difference among ages (p = 0.011, p 0.038). Most of the young group (< 45) used after work on dealing with patients of the emergency room and inpatients. However, old group ({>=} 45) used at work more than young group, and most of them used on dealing with the inpatients. The mean satisfaction score regarding the degree of help and about the satisfaction were 3.1 and 3.4, respectively. The frequency of the use of the mobile PACS by medical and surgical clinicians was higher than supporting clinicians. There were statistically significant differences in the times and uses between the young and old groups, but not among the clinical departments. The satisfaction of the use of mobile PACS was moderate degree.

  11. Picture archiving and communication systems lead to sustained improvements in reporting times and productivity: results of a 5-year audit

    International Nuclear Information System (INIS)

    Aim: To evaluate the impact of picture archiving and communications systems (PACS) on reporting times and productivity in a large teaching hospital. Materials and methods: Reporting time, defined as the time taken from patient registration to report availability, and productivity, defined as the number of reports issued per whole time equivalent (WTE) radiologist per month, were studied for 2 years pre- and 3 years post-PACS installation. Mean reporting time was calculated for plain radiographs and specialist radiology techniques [computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, and nuclear medicine]. Productivity, total department workload, and unreported film rates were also assessed. Pre- and post-PACS findings were compared. Results: Between 2002-2006 the number of radiological patient episodes increased by 30% from 11,531/month to 15,057/month. This was accompanied by a smaller increase in WTE reporting radiologists, from 32 to 37 (15%). Mean reporting times have improved substantially post-PACS, plain radiograph reporting time decreased by 26% (from 6.8 to 5 days; p = 0.002) and specialty modalities by 24% (4.1 to 3.1 days; p < 0.001). Radiologist productivity has increased by 18% (337 films to 407 films/WTE radiologist/month). Unreported films have decreased from 5 to 4% for plain radiographs and are steady for specialty modalities (< 1%). In most areas improvements have been sustained over a 3-year period. Conclusion: Since the introduction of PACS, reporting times have decreased by 25% and the productivity improved by 18%. Sustained improvements are felt to reflect the efficiencies and cultural change that accompanied the introduction of PACS and digital dictation

  12. Tillage system affects microbiological properties of soil

    Science.gov (United States)

    Delgado, A.; de Santiago, A.; Avilés, M.; Perea, F.

    2012-04-01

    Soil tillage significantly affects organic carbon accumulation, microbial biomass, and subsequently enzymatic activity in surface soil. Microbial activity in soil is a crucial parameter contributing to soil functioning, and thus a basic quality factor for soil. Since enzymes remain soil after excretion by living or disintegrating cells, shifts in their activities reflect long-term fluctuations in microbial biomass. In order to study the effects of no-till on biochemical and microbiological properties in comparison to conventional tillage in a representative soil from South Spain, an experiment was conducted since 1982 on the experimental farm of the Institute of Agriculture and Fisheries Research of Andalusia (IFAPA) in Carmona, SW Spain (37o24'07''N, 5o35'10''W). The soil at the experimental site was a very fine, montomorillonitic, thermic Chromic Haploxerert (Soil Survey Staff, 2010). A randomized complete block design involving three replications and the following two tillage treatments was performed: (i) Conventional tillage, which involved mouldboard plowing to a depth of 50 cm in the summer (once every three years), followed by field cultivation to a depth of 15 cm before sowing; crop residues being burnt, (ii) No tillage, which involved controlling weeds before sowing by spraying glyphosate and sowing directly into the crop residue from the previous year by using a planter with double-disk openers. For all tillage treatments, the crop rotation (annual crops) consisted of winter wheat, sunflower, and legumes (pea, chickpea, or faba bean, depending on the year), which were grown under rainfed conditions. Enzymatic activities (ß-glucosidase, dehydrogenase, aryl-sulphatase, acid phosphatase, and urease), soil microbial biomass by total viable cells number by acridine orange direct count, the density of cultivable groups of bacteria and fungi by dilution plating on semi-selective media, the physiological profiles of the microbial communities by BiologR, and the

  13. The Power of Pictures : Vertical Picture Angles in Power Pictures

    NARCIS (Netherlands)

    Giessner, Steffen R.; Ryan, Michelle K.; Schubert, Thomas W.; van Quaquebeke, Niels

    2011-01-01

    Conventional wisdom suggests that variations in vertical picture angle cause the subject to appear more powerful when depicted from below and less powerful when depicted from above. However, do the media actually use such associations to represent individual differences in power? We argue that the d

  14. Construction of Multi-Mode Affective Learning System: Taking Affective Design as an Example

    Science.gov (United States)

    Lin, Hao-Chiang Koong; Su, Sheng-Hsiung; Chao, Ching-Ju; Hsieh, Cheng-Yen; Tsai, Shang-Chin

    2016-01-01

    This study aims to design a non-simultaneous distance instruction system with affective computing, which integrates interactive agent technology with the curricular instruction of affective design. The research subjects were 78 students, and prototype assessment and final assessment were adopted to assess the interface and usability of the system.…

  15. Redirection of client/server relationship of X Window system as a simple, low-cost, departmental picture archiving and communication system solution for nuclear medicine.

    Science.gov (United States)

    Datz, F L; Baune, D A; Christian, P E

    1994-08-01

    Picture archiving and communication systems (PACS) offer significant advantages over current film-management techniques. However, PACS are complex and expensive, factors that have limited their entry into the radiology and nuclear medicine communities. We present a simple, low-cost PACS solution that allows viewing of images from different computer systems by redirection of the X Window system. In this technique, multiple copies of the imaging software are remotely opened from generic UNIX workstations interfaced to the main computer system via Transmission Control Protocol/Internet Protocol over Ethernet. The X Window system that provides the windowing system for the main computer is redirected to the workstations' displays. With this technique, viewing and processing of images on a remote station is virtually identical to working at the main computer's console. The technique requires that the commercial imaging system's hardware, operating system, and imaging software support multiuser multitasking and the execution of multiple copies of its imaging software, and that they use X Windows as the graphical system. Advantages of the technique include low cost, ease of maintenance, ease of interconnecting different types of computers, the capacity to view images regardless of file format, and the capacity to both view and process images. The latter is a necessity for modalities such as nuclear medicine. A disadvantage of the technique is that the number of nodes that can be supported is limited. PMID:7948169

  16. Redirection of client/server relationship of X Window system as a simple, low-cost, departmental picture archiving and communication system solution for nuclear medicine.

    Science.gov (United States)

    Datz, F L; Baune, D A; Christian, P E

    1994-08-01

    Picture archiving and communication systems (PACS) offer significant advantages over current film-management techniques. However, PACS are complex and expensive, factors that have limited their entry into the radiology and nuclear medicine communities. We present a simple, low-cost PACS solution that allows viewing of images from different computer systems by redirection of the X Window system. In this technique, multiple copies of the imaging software are remotely opened from generic UNIX workstations interfaced to the main computer system via Transmission Control Protocol/Internet Protocol over Ethernet. The X Window system that provides the windowing system for the main computer is redirected to the workstations' displays. With this technique, viewing and processing of images on a remote station is virtually identical to working at the main computer's console. The technique requires that the commercial imaging system's hardware, operating system, and imaging software support multiuser multitasking and the execution of multiple copies of its imaging software, and that they use X Windows as the graphical system. Advantages of the technique include low cost, ease of maintenance, ease of interconnecting different types of computers, the capacity to view images regardless of file format, and the capacity to both view and process images. The latter is a necessity for modalities such as nuclear medicine. A disadvantage of the technique is that the number of nodes that can be supported is limited.

  17. Political and institutional factors affecting systems engineering

    Science.gov (United States)

    Yardley, John F.

    1993-01-01

    External groups have a significant impact on NASA's programs. Ten groups affecting NASA are identified, and examples are given for some of the them. Methods of dealing with these external inputs are discussed, the most important being good and open two way communications and an objective attitude on the part of the NASA participants. The importance of planning ahead, of developing rapport with these groups, and of effective use of NASA contractors is covered. The need for an overall strategic plan for the U.S. space program is stressed.

  18. Gesture dynamic recognition system for picture manipulation%图片操作的手势动态识别系统

    Institute of Scientific and Technical Information of China (English)

    陈守满; 朱伟; 王庆春

    2012-01-01

    In order to realize the gesture input for picture manipulation commands, a gesture dynamic recognition system for picture manipulation Was designed. The ARM (S3C6410) is taken as the system hardware core in the system. The digital image processing and embedded vision technology are adopted in the system to capture frame images by camera, process and identify images by OpenCV technology, manipulate pictures on the TFT screen, and achieve the zoom and switch operation of non-contact pictures. The experiment and testing achieved good results. The proposed design ideas provide a reference for scheme design of the sign language input and Robot visual input.%为了实现图片操作命令的手势输入,设计了图片操作的手势动态识别系统.系统以ARM(S3C6410)为硬件处理核心,利用数字图像处理和嵌入式视觉技术,由摄像头捕捉帧图像,经OpenCV技术处理识别后,发出相应命令,操作显示屏上的图片,实现了对图片非接触式的缩放和切换操作等功能.进行实验测试,取得了 良好的效果,所提出的设计思想为手语输入、机器人视觉输入的方案设计提供了参考.

  19. Maggot excretions affect the human complement system.

    Science.gov (United States)

    Cazander, Gwendolyn; Schreurs, Marco W J; Renwarin, Lennaert; Dorresteijn, Corry; Hamann, Dörte; Jukema, Gerrolt N

    2012-01-01

    The complement system plays an important role in the activation of the inflammatory response to injury, although inappropriate complement activation (CA) can lead to severe tissue damage. Maggot therapy is successfully used to treat infected wounds. In this study, we hypothesized that maggot excretions/secretions influence CA in order to modulate the host's inflammatory response. Therefore, the effect of maggot excretions on CA was investigated in preoperatively and postoperatively obtained sera from patients. Our results show that maggot excretions reduce CA in healthy and postoperatively immune-activated human sera up to 99.9%, via all pathways. Maggot excretions do not specifically initiate or inhibit CA, but break down complement proteins C3 and C4 in a cation-independent manner and this effect proves to be temperature tolerant. This study indicates a CA-reducing substrate that is already successfully used in clinical practice and may explain part of the improved wound healing caused by maggot therapy. Furthermore, the complement activation-reducing substance present in maggot excretions could provide a novel treatment modality for several diseases, resulting from an (over)active complement system.

  20. Space perception in pictures

    NARCIS (Netherlands)

    Van Doorn, A.J.; Wagemans, J.; De Ridder, H.; Koenderink, J.J.

    2011-01-01

    A "picture" is a at object covered with pigments in a certain pattern. Human observers, when looking "into" a picture (photograph, painting, drawing, . . . say) often report to experience a three dimensional "pictorial space." This space is a mental entity, apparently triggered by so called pictori

  1. Can Pictures Be Arguments?

    Science.gov (United States)

    Fleming, David

    1996-01-01

    Maintains that widening the study of argumentation to include the visual unjustifiably expands common understandings of argument, particularly those that define argument as a two-part, two-sided act. Contends that by calling pictures "arguments," it is possible that attention will be diverted away from the rhetorical functions pictures can and do…

  2. Economic Factors Affecting Diversified Farming Systems

    Directory of Open Access Journals (Sweden)

    Maria S. Bowman

    2013-03-01

    Full Text Available In response to a shift toward specialization and mechanization during the 20th century, there has been momentum on the part of a vocal contingent of consumers, producers, researchers, and policy makers who call for a transition toward a new model of agriculture. This model employs fewer synthetic inputs, incorporates practices which enhance biodiversity and environmental services at local, regional, and global scales, and takes into account the social implications of production practices, market dynamics, and product mixes. Within this vision, diversified farming systems (DFS have emerged as a model that incorporates functional biodiversity at multiple temporal and spatial scales to maintain ecosystem services critical to agricultural production. Our aim is to provide an economists' perspective on the factors which make diversified farming systems (DFS economically attractive, or not-so-attractive, to farmers, and to discuss the potential for and roadblocks to widespread adoption. We focus on how a range of existing and emerging factors drive profitability and adoption of DFS. We believe that, in order for DFS to thrive, a number of structural changes are needed. These include: 1 public and private investment in the development of low-cost, practical technologies that reduce the costs of production in DFS, 2 support for and coordination of evolving markets for ecosystem services and products from DFS and 3 the elimination of subsidies and crop insurance programs that perpetuate the unsustainable production of staple crops. We suggest that subsidies and funding be directed, instead, toward points 1 and 2, as well as toward incentives for consumption of nutritious food.

  3. Affectivity

    OpenAIRE

    Stenner, Paul; Greco, Monica

    2013-01-01

    The concept of affectivity has assumed central importance in much recent scholarship, and many in the social sciences and humanities now talk of an ‘affective turn’. The concept of affectivity at play in this ‘turn’ remains, however, somewhat vague and slippery. Starting with Silvan Tomkins’ influential theory of affect, this paper will explore the relevance of the general assumptions (or ‘utmost abstractions’) that inform thinking about affectivity. The technological and instrumentalist char...

  4. Emerging Picture of Black Hole in Double-Star System Promises Exciting Yield of New Physics Data

    Science.gov (United States)

    1995-06-01

    As scientists from the National Radio Astronomy Observatory (NRAO) report on analysis of "moving pictures" of powerful jets of material emerging from a double-star system 10,000 light-years away, new evidence from other research confirms that the source of the jets is a black hole. A series of images made with the Very Long Baseline Array (VLBA) and Very Large Array (VLA) radio telescopes, made by Robert Hjellming and Michael Rupen of NRAO, appears in the June 8 issue of the scientific journal Nature. When these radio "snapshots" of jets emerging from an X-ray nova in the constellation Scorpius were made in August and September of 1994, the source of the jets was only suspected of harboring a black hole. It is now certain that a black hole is the source of the jets, thanks to an intense observing effort using ground-and space-based telescopes at wavelengths ranging from gamma rays to radio waves. The system, discovered only last year, with a star similar in size to our Sun orbiting the black hole, now promises to show astronomers -- at long last -- details of how black holes can power super-energetic jets of material to nearly the speed of light. The latest results come from studies made with radio and optical telescopes operated for the National Science Foundation. Black holes are concentrations of matter so dense that their gravitational attraction prevents even light from escaping them. "This is the first time we can say that one of the components of a jet-emitting binary is a black hole based on fundamental astronomy, rather than on fitting observational data to complicated models," said Hjellming, an NRAO astronomer in Socorro, NM. This resulted from observations of the object -- called GRO J1655-40 -- with instruments covering widely different parts of the electromagnetic spectrum -- observations that reinforced each other to make a solid case. Researchers are excited about the discovery. It means, they say, that scientists can study this object and begin to

  5. A wireless wide area network picture archiving and communication system based on open source code and its clinical application

    International Nuclear Information System (INIS)

    Objective: To build a set of inexpensive wireless wide area network PACS based on open source code. Methods: To improve the open source code MyFreePACS on Internet. Results: The basic function of PACS can be achieved in an economical way, using internet explorer to browse and deal with the DICOM Images, with the capability of such functions as displaying and managing of the pictures. It is possible to make rounds at patient bedside with wireless device and remote medical consultation with specialists through Internet. Conclusion: It is possible to utilize the free open source code MyFreePACS on the internet to construct an economical PACS on Web in the medium and small-scale hospital. (authors)

  6. Vision and Motion Pictures.

    Science.gov (United States)

    Grambo, Gregory

    1998-01-01

    Presents activities on persistence of vision that involve students in a hands-on approach to the study of early methods of creating motion pictures. Students construct flip books, a Zoetrope, and an early movie machine. (DDR)

  7. Rearing environment affects development of the immune system in neonates

    NARCIS (Netherlands)

    Inman, C.F.; Haverson, K.; Konstantinov, S.R.; Jones, P.H.; Harris, C.; Smidt, H.; Miller, B.; Bailey, M.; Stokes, C.

    2010-01-01

    P>Early-life exposure to appropriate microbial flora drives expansion and development of an efficient immune system. Aberrant development results in increased likelihood of allergic disease or increased susceptibility to infection. Thus, factors affecting microbial colonization may also affect th

  8. A comparison between digital images viewed on a picture archiving and communication system diagnostic workstation and on a PC-based remote viewing system by emergency physicians.

    Science.gov (United States)

    Parasyn, A; Hanson, R M; Peat, J K; De Silva, M

    1998-02-01

    Picture Archiving and Communication Systems (PACS) make possible the viewing of radiographic images on computer workstations located where clinical care is delivered. By the nature of their work this feature is particularly useful for emergency physicians who view radiographic studies for information and use them to explain results to patients and their families. However, the high cost of PACS diagnostic workstations with fuller functionality places limits on the number of and therefore the accessibility to workstations in the emergency department. This study was undertaken to establish how well less expensive personal computer-based workstations would work to support these needs of emergency physicians. The study compared the outcome of observations by 5 emergency physicians on a series of radiographic studies containing subtle abnormalities displayed on both a PACS diagnostic workstation and on a PC-based workstation. The 73 digitized radiographic studies were randomly arranged on both types of workstation over four separate viewing sessions for each emergency physician. There was no statistical difference between a PACS diagnostic workstation and a PC-based workstation in this trial. The mean correct ratings were 59% on the PACS diagnostic workstations and 61% on the PC-based workstations. These findings also emphasize the need for prompt reporting by a radiologist.

  9. Selected legal and regulatory concerns affecting domestic energy transportation systems

    International Nuclear Information System (INIS)

    This report provides assessments of eight legal and regulatory concerns that may affect energy material transportation in the US during the rest of the century: state authority to regulate nuclear materials transport, divestiture of petroleum pipelines from major integrated oil companies, problems affecting the natural gas transportation system, capabilities of energy transportation systems during emergencies, Federal coal pipeline legislation, ability of Federal agencies to anticipate railroad difficulties, abandonment of uneconomic railroad lines, and impact of the Panama Canal treaty upon US energy transportation

  10. Vegetarianism and food perception : selective visual attention to meat pictures

    OpenAIRE

    Stockburger, Jessica; Renner, Britta; Weike, Almut I.; Hamm, Alfons O.; Schupp, Harald Thomas

    2009-01-01

    Vegetarianism provides a model system to examine the impact of negative affect towards meat, based on ideational reasoning. It was hypothesized that meat stimuli are efficient attention catchers in vegetarians. Event-related brain potential recordings served to index selective attention processes at the level of initial stimulus perception. Consistent with the hypothesis, late positive potentials to meat pictures were enlarged in vegetarians compared to omnivores. This effect was specific fo...

  11. Interactions between affective and cognitive processing systems in problematic gamblers: a functional connectivity study.

    Directory of Open Access Journals (Sweden)

    Ruth J van Holst

    Full Text Available BACKGROUND: Motivational and cognitive abnormalities are frequently reported in pathological gambling. However, studies simultaneously investigating motivational and cognitive processing in problematic gamblers are lacking, limiting our understanding of the interplay between these systems in problematic gambling. Studies in non-clinical samples indicate that interactions between dorsal "executive" and ventral "affective" processing systems are necessary for adequate responses in various emotive situations. METHODS: We conducted a generalized Psycho-Physiological Interaction (gPPI analysis to assess the influence of affective stimuli on changes in functional connectivity associated with response inhibition in 16 treatment seeking problematic gamblers (PRGs and 15 healthy controls (HCs using an affective Go-NoGo fMRI paradigm including neutral, gambling-related, positive and negative pictures as neutral and affective conditions. RESULTS: Across groups, task performance accuracy during neutral inhibition trials was positively correlated with functional connectivity between the left caudate and the right middle frontal cortex. During inhibition in the gambling condition, only in PRGs accuracy of task performance was positively correlated with functional connectivity within sub-regions of the dorsal executive system. Group interactions showed that during neutral inhibition, HCs exhibited greater functional connectivity between the left caudate and occipital cortex than PRGs. In contrast, during inhibition in the positive condition, PRGs compared to HCs showed greater functional connectivity between the left caudate and occipital cortex. During inhibition trials in the negative condition, a stronger functional connectivity between the left caudate and the right anterior cingulate cortex in PRGs compared to HCs was present. There were no group interactions during inhibition in the gambling condition. CONCLUSIONS: During gamble inhibition PRGs seem to

  12. The Olig family affects central nervous system development and disease

    Institute of Scientific and Technical Information of China (English)

    Botao Tan; Jing Yu; Ying Yin; Gongwei Jia; Wei Jiang; Lehua Yu

    2014-01-01

    Neural cell differentiation and maturation is a critical step during central nervous system devel-opment. The oligodendrocyte transcription family (Olig family) is known to be an important factor in regulating neural cell differentiation. Because of this, the Olig family also affects acute and chronic central nervous system diseases, including brain injury, multiple sclerosis, and even gliomas. Improved understanding about the functions of the Olig family in central nervous system development and disease will greatly aid novel breakthroughs in central nervous system diseases. This review investigates the role of the Olig family in central nervous system develop-ment and related diseases.

  13. Picture Books for Teens.

    Science.gov (United States)

    Kan, Kat

    2002-01-01

    Discusses picture books that are suitable for teens, particularly middle school readers, and provides detailed reviews for five titles that have appealing story themes and illustrations including: Tony Millionaires' Sock Monkey: A Children's Book; Mick Foley's Christmas Chaos; Mick Foley's Halloween Hijinx; The Book of Jack; and Moby Dick. (LRW)

  14. Landscape as World Picture

    DEFF Research Database (Denmark)

    Wamberg, Jacob

    from Palaeolithic cave paintings through to 19th-century modernity. A structuralist comparison between this pattern and three additional fields of analysis - self-consciousness, socially-determined perception of nature, and world picture - reveals a fascinating insight into culture's macrohistorical...

  15. Selected legal and regulatory concerns affecting domestic energy transportation systems

    Energy Technology Data Exchange (ETDEWEB)

    Schuller, C.R.

    1979-07-01

    This report provides assessments of eight legal and regulatory concerns that may affect energy material transportation in the US during the rest of the century: state authority to regulate nuclear materials transport, divestiture of petroleum pipelines from major integrated oil companies, problems affecting the natural gas transportation system, capabilities of energy transportation systems during emergencies, Federal coal pipeline legislation, ability of Federal agencies to anticipate railroad difficulties, abandonment of uneconomic railroad lines, and impact of the Panama Canal treaty upon US energy transportation. (DLC)

  16. Impaired picture recognition in transient epileptic amnesia.

    Science.gov (United States)

    Dewar, Michaela; Hoefeijzers, Serge; Zeman, Adam; Butler, Christopher; Della Sala, Sergio

    2015-01-01

    Transient epileptic amnesia (TEA) is an epileptic syndrome characterized by recurrent, brief episodes of amnesia. Transient epileptic amnesia is often associated with the rapid decline in recall of new information over hours to days (accelerated long-term forgetting - 'ALF'). It remains unknown how recognition memory is affected in TEA over time. Here, we report a systematic study of picture recognition in patients with TEA over the course of one week. Sixteen patients with TEA and 16 matched controls were presented with 300 photos of everyday life scenes. Yes/no picture recognition was tested 5min, 2.5h, 7.5h, 24h, and 1week after picture presentation using a subset of target pictures as well as similar and different foils. Picture recognition was impaired in the patient group at all test times, including the 5-minute test, but it declined normally over the course of 1week. This impairment was associated predominantly with an increased false alarm rate, especially for similar foils. High performance on a control test indicates that this impairment was not associated with perceptual or discrimination deficits. Our findings suggest that, at least in some TEA patients with ALF in verbal recall, picture recognition does not decline more rapidly than in controls over 1week. However, our findings of an early picture recognition deficit suggest that new visual memories are impoverished after minutes in TEA. This could be the result of deficient encoding or impaired early consolidation. The early picture recognition deficit observed could reflect either the early stages of the process that leads to ALF or a separable deficit of anterograde memory in TEA. Lastly, our study suggests that at least some patients with TEA are prone to falsely recognizing new everyday visual information that they have not in fact seen previously. This deficit, alongside their ALF in free recall, likely affects everyday memory performance. PMID:25506793

  17. Abnormal activation of the occipital lobes during emotion picture processing in major depressive disorder patients

    Institute of Scientific and Technical Information of China (English)

    Jianying Li; Cheng Xu; Xiaohua Cao; Qiang Gao; Yan Wang; Yanfang Wang; Juyi Peng; Kerang Zhang

    2013-01-01

    A large number of studies have demonstrated that depression patients have cognitive dysfunction. With recently developed brain functional imaging, studies have focused on changes in brain function to investigate cognitive changes. However, there is still controversy regarding abnormalities in brain functions or correlation between cognitive impairment and brain function changes. Thus, it is important to design an emotion-related task for research into brain function changes. We selected positive, neutral, and negative pictures from the International Affective Picture System. Patients with major depressive disorder were asked to judge emotion pictures. In addition, functional MRI was performed to synchronously record behavior data and imaging data. Results showed that the total correct rate for recognizing pictures was lower in patients compared with normal controls. Moreover, the consistency for recognizing pictures for depressed patients was worse than normal controls, and they frequently recognized positive pictures as negative pictures. The consistency for recognizing pictures was negatively correlated with the Hamilton Depression Rating Scale. Functional MRI suggested that the activation of some areas in the frontal lobe, temporal lobe, parietal lobe, limbic lobe, and cerebellum was enhanced, but that the activation of some areas in the frontal lobe, parietal lobe and occipital lobe was weakened while the patients were watching positive and neutral pictures compared with normal controls. The activation of some areas in the frontal lobe, temporal lobe, parietal lobe, and limbic lobe was enhanced, but the activation of some areas in the occipital lobe were weakened while the patients were watching the negative pictures compared with normal controls. These findings indicate that patients with major depressive disorder have negative cognitive disorder and extensive brain dysfunction. Thus, reduced activation of the occipital lobe may be an initiating factor for

  18. Human likeness: cognitive and affective factors affecting adoption of robot-assisted learning systems

    Science.gov (United States)

    Yoo, Hosun; Kwon, Ohbyung; Lee, Namyeon

    2016-07-01

    With advances in robot technology, interest in robotic e-learning systems has increased. In some laboratories, experiments are being conducted with humanoid robots as artificial tutors because of their likeness to humans, the rich possibilities of using this type of media, and the multimodal interaction capabilities of these robots. The robot-assisted learning system, a special type of e-learning system, aims to increase the learner's concentration, pleasure, and learning performance dramatically. However, very few empirical studies have examined the effect on learning performance of incorporating humanoid robot technology into e-learning systems or people's willingness to accept or adopt robot-assisted learning systems. In particular, human likeness, the essential characteristic of humanoid robots as compared with conventional e-learning systems, has not been discussed in a theoretical context. Hence, the purpose of this study is to propose a theoretical model to explain the process of adoption of robot-assisted learning systems. In the proposed model, human likeness is conceptualized as a combination of media richness, multimodal interaction capabilities, and para-social relationships; these factors are considered as possible determinants of the degree to which human cognition and affection are related to the adoption of robot-assisted learning systems.

  19. An E-learning System based on Affective Computing

    Science.gov (United States)

    Duo, Sun; Song, Lu Xue

    In recent years, e-learning as a learning system is very popular. But the current e-learning systems cannot instruct students effectively since they do not consider the emotional state in the context of instruction. The emergence of the theory about "Affective computing" can solve this question. It can make the computer's intelligence no longer be a pure cognitive one. In this paper, we construct an emotional intelligent e-learning system based on "Affective computing". A dimensional model is put forward to recognize and analyze the student's emotion state and a virtual teacher's avatar is offered to regulate student's learning psychology with consideration of teaching style based on his personality trait. A "man-to-man" learning environment is built to simulate the traditional classroom's pedagogy in the system.

  20. Comparative efficacy of the picture exchange communication system (PECS) versus a speech-generating device: effects on social-communicative skills and speech development.

    Science.gov (United States)

    Boesch, Miriam C; Wendt, Oliver; Subramanian, Anu; Hsu, Ning

    2013-09-01

    The Picture Exchange Communication System (PECS) and a speech-generating device (SGD) were compared in a study with a multiple baseline, alternating treatment design. The effectiveness of these methods in increasing social-communicative behavior and natural speech production were assessed with three elementary school-aged children with severe autism who demonstrated extremely limited functional communication skills. Results for social-communicative behavior were mixed for all participants in both treatment conditions. Relatively little difference was observed between PECS and SGD conditions. Although findings were inconclusive, data patterns suggest that Phase II of the PECS training protocol is conducive to encouraging social-communicative behavior. Data for speech outcomes did not reveal any increases across participants, and no differences between treatment conditions were observed.

  1. Factors Affecting Educational Innovation with in Class Electronic Response Systems

    Science.gov (United States)

    Freeman, Mark; Bell, Amani; Comerton-Forde, Carole; Pickering, Joanne; Blayney, Paul

    2007-01-01

    This paper reports the use of Rogers' diffusion of innovation perspective to understand the factors affecting educational innovation decisions, specifically in regard to in class electronic response systems. Despite decreasing costs and four decades of research showing strong student support, academic adoption is limited. Using data collected from…

  2. Design Considerations for Multi-Channel Picture Communication Networks

    OpenAIRE

    Scheibe, Paul O.

    1983-01-01

    Design of networks intended for communication of digitally-encoded pictures involves considerations different from those used in the design of text or voice communication networks. This paper provides an overview of the elements useful in the design of picture communication networks by relation and contrast with other communication networks. Particular emphasis is given to picture communication systems useful in medical applications.

  3. Evaluation of Picture Archiving and Communication System (Pacs As A Process Improvement Sample (Sivas Numune Hospital Application

    Directory of Open Access Journals (Sweden)

    Ali Rıza İnce

    2013-09-01

    Full Text Available It is a realitythatthefirmsproducinggoods or services frequentlybenefited process improvementand similartechniques toachieve their objectives In today'scompetitive environment.Beingprocess-orientedmeans to give weight to the creation of quality but not to the control of quality. In this sense, process improvement is seen as an approach of Total Quality Management targeted. Hospital informationsystems are computer systems that collect andarchive all orthe majority of the hospitaldatafor use inthe assessment.It isa major problem that storage of visualdatawithout lossanddamage and also the being availableof these data as soon as possiblein this system.System that calledPACShas been developedto overcome this problem.PACS is an archiving system that archive the visual dataobtained fromimaging systems in different unitsin a spaceand, allows the transfer of these data to usersat different points when needed.In this study,efficiency of PACS asa process improvementtechniquewas examined by the application ofahospital.It is concluded that the system providea positive contributionto customers and hospitalas an example ofan importantprocess improvement at the evaluationof the results and implementation of the system.

  4. A model for understanding diagnostic imaging referrals and complex interaction processes within the bigger picture of a healthcare system

    International Nuclear Information System (INIS)

    Using experiences from the South African public healthcare system with limited resources, this review proposes a model that captures a holistic perspective of diagnostic imaging services embedded in a network of negotiated decision-making processes. Professional interdependency and interprofessional collaboration, cooperation and coordination are built around the central notion of integration in order to achieve a seamless transition through the continuum of various types of services needed to come to a diagnosis. Health-system role players interact with patients who enter the system from the perspective of their life-world. The distribution of diagnostic imaging services – within one setting or at multiple levels of care – demonstrates how fragments of information are filtered, interpreted and transformed at each point of care. The proposed model could contribute to alignment towards a common goal: services providing holistic quality of care within and beyond a complex healthcare system

  5. Adoption and resistance: reflections on human, organizational, and information technologies in picture archive and communication systems (PACS)

    Science.gov (United States)

    Sappington, Rodney W.

    2005-04-01

    In research conducted at academic and community hospitals in the United States since 2001, this paper examines complex human and technological relationships employed to renegotiate behavior within hospital administrative and clinical cultures. In the planning and implementation of PACS in a four-facility hospital we will enter into what can be described as processes of "adoption" and "resistance", seemingly opposite approaches to system implementation, which I argue are in fact key responses to planning, design, and customization of imaging and information systems in a context of convergence. In a larger context of convergence known as NBIC tools (nanotechnology, biotechnology, information technology, and cognitive sciences) it has become increasingly clear to leaders in the field that it is essential to redesign organizational technologies. A novel system has little chance of being fully utilized by conventional organizational structures in an era of system convergence. The challenge of embracing a larger systems perspective lies in opening untapped potential within the healthcare enterprise by preparing the ground for reflection on new approaches to training, and bridging specialized knowledge across computer engineering, clinical decision making, and organizational perspectives for the benefit of patient care. Case studies will demonstrate how organizational and system design technologies are crucial in insuring that PACS implementation strategies can encourage the emergence of new levels of quality for patient care. The goal is to provide successful design-build models that are true to organizational specificity, persons, and clinical practices undergoing change and uncertainty.

  6. Looking at the “mental picture of reality” of an efl teacher: a systemic functional analysis Looking at the “mental picture of reality” of an efl teacher: a systemic functional analysis

    Directory of Open Access Journals (Sweden)

    Luciani S. de O Malatér

    2008-04-01

    Full Text Available In this study, I analyze an interview conducted with a Brazilian EFL teacher. Through the analysis of transitivity, I aim at understanding how he2 encodes his teaching xperience and professional roles. The study highlights some of the potentialities of systemic functional linguistics (SFL (Halliday, 1994 as a theoretical framework to be used to categorize teachers’ discourse, making both the discussion and interpretation of data more systematic. Analysis of the research participant’s discourse reveals, on the one hand, his concerns with the quality and development of his teaching practice, as well as with his learners’ needs. The analysis also shows, on the other hand, that he does not seem to share his professional responsibilities collaboratively with his colleagues and students. These findings may be helpful to debates in language teacher education for the benefit of both prospective and practicing teachers. In this study, I analyze an interview conducted with a Brazilian EFL teacher. Through the analysis of transitivity, I aim at understanding how he2 encodes his teaching xperience and professional roles. The study highlights some of the potentialities of systemic functional linguistics (SFL (Halliday, 1994 as a theoretical framework to be used to categorize teachers’ discourse, making both the discussion and interpretation of data more systematic. Analysis of the research participant’s discourse reveals, on the one hand, his concerns with the quality and development of his teaching practice, as well as with his learners’ needs. The analysis also shows, on the other hand, that he does not seem to share his professional responsibilities collaboratively with his colleagues and students. These findings may be helpful to debates in language teacher education for the benefit of both prospective and practicing teachers.

  7. Producing colour pictures from SCAN

    International Nuclear Information System (INIS)

    The computer code SCAN.TSK has been written for use on the Interdata 7/32 minicomputer which will convert the pictures produced by the SCAN program into colour pictures on a colour graphics VDU. These colour pictures are a more powerful aid to detecting errors in the MONK input data than the normal lineprinter pictures. This report is intended as a user manual for using the program on the Interdata 7/32, and describes the method used to produce the pictures and gives examples of JCL, input data and of the pictures that can be produced. (U.K.)

  8. Factors affecting the level of success of community information systems.

    Science.gov (United States)

    Coombs, C R; Doherty, N F; Loan-Clarke, J

    1999-01-01

    The factors that influence the ultimate level of success or failure of systems development projects have received considerable attention in the academic literature. However, previous research has rarely targeted different instances of a common type of system within a homogeneous organisational sector. This paper presents the results of a survey of IM&T managers within Community Trusts to gain insights into the factors affecting the success of Community Information Systems. The results demonstrate that the most successful operational systems were thoroughly tested prior to implementation and enjoyed high levels of user and senior management commitment. Furthermore, it has been shown that there is a relationship between the level of organisational impact and systems success, with the most successful systems engendering changes to the host organisation's culture, level of empowerment and clinical working practices. In addition to being of academic interest, this research provides many important insights for practising IM&T managers. PMID:10747445

  9. Streamlining the Discovery, Evaluation, and Integration of Data, Models, and Decision Support Systems: a Big Picture View

    Science.gov (United States)

    21st century environmental problems are wicked and require holistic systems thinking and solutions that integrate social and economic knowledge with knowledge of the environment. Computer-based technologies are fundamental to our ability to research and understand the relevant sy...

  10. Negotiating Dual Accountability Systems: Strategic Responses of Big Picture Schools to State-Mandated Standards and Assessment

    Science.gov (United States)

    Suchman, Sara P.

    2012-01-01

    The No Child Left Behind Act of 2001 mandated that states implement standards and test-based accountability systems. In theory, local educators are free to select the means for teaching the standards so long as students achieve a predetermined proficiency level on the exams. What is unclear, however, is how this theory plays out in schools…

  11. Picture Stories for ESL Health Literacy.

    Science.gov (United States)

    Singleton, Kate

    These picture stories help English as a Second Language teachers address topics affecting their students' health and wellbeing. They are useful for beginner and low-literacy students, offering a safe, impromptu way to discuss difficult topics, ask questions, and obtain information. As the stories are about cartoon characters, students are not…

  12. Global research priorities for infections that affect the nervous system

    Science.gov (United States)

    John, Chandy C.; Carabin, Hélène; Montano, Silvia M.; Bangirana, Paul; Zunt, Joseph R.; Peterson, Phillip K.

    2015-01-01

    Infections that cause significant nervous system morbidity globally include viral (for example, HIV, rabies, Japanese encephalitis virus, herpes simplex virus, varicella zoster virus, cytomegalovirus, dengue virus and chikungunya virus), bacterial (for example, tuberculosis, syphilis, bacterial meningitis and sepsis), fungal (for example, cryptococcal meningitis) and parasitic (for example, malaria, neurocysticercosis, neuroschistosomiasis and soil-transmitted helminths) infections. The neurological, cognitive, behavioural or mental health problems caused by the infections probably affect millions of children and adults in low- and middle-income countries. However, precise estimates of morbidity are lacking for most infections, and there is limited information on the pathogenesis of nervous system injury in these infections. Key research priorities for infection-related nervous system morbidity include accurate estimates of disease burden; point-of-care assays for infection diagnosis; improved tools for the assessment of neurological, cognitive and mental health impairment; vaccines and other interventions for preventing infections; improved understanding of the pathogenesis of nervous system disease in these infections; more effective methods to treat and prevent nervous system sequelae; operations research to implement known effective interventions; and improved methods of rehabilitation. Research in these areas, accompanied by efforts to implement promising technologies and therapies, could substantially decrease the morbidity and mortality of infections affecting the nervous system in low- and middle-income countries. PMID:26580325

  13. Global research priorities for infections that affect the nervous system.

    Science.gov (United States)

    John, Chandy C; Carabin, Hélène; Montano, Silvia M; Bangirana, Paul; Zunt, Joseph R; Peterson, Phillip K

    2015-11-19

    Infections that cause significant nervous system morbidity globally include viral (for example, HIV, rabies, Japanese encephalitis virus, herpes simplex virus, varicella zoster virus, cytomegalovirus, dengue virus and chikungunya virus), bacterial (for example, tuberculosis, syphilis, bacterial meningitis and sepsis), fungal (for example, cryptococcal meningitis) and parasitic (for example, malaria, neurocysticercosis, neuroschistosomiasis and soil-transmitted helminths) infections. The neurological, cognitive, behavioural or mental health problems caused by the infections probably affect millions of children and adults in low- and middle-income countries. However, precise estimates of morbidity are lacking for most infections, and there is limited information on the pathogenesis of nervous system injury in these infections. Key research priorities for infection-related nervous system morbidity include accurate estimates of disease burden; point-of-care assays for infection diagnosis; improved tools for the assessment of neurological, cognitive and mental health impairment; vaccines and other interventions for preventing infections; improved understanding of the pathogenesis of nervous system disease in these infections; more effective methods to treat and prevent nervous system sequelae; operations research to implement known effective interventions; and improved methods of rehabilitation. Research in these areas, accompanied by efforts to implement promising technologies and therapies, could substantially decrease the morbidity and mortality of infections affecting the nervous system in low- and middle-income countries. PMID:26580325

  14. Picture archiving and communication systems (PACS) in clinical practice. Implantacion de un sistema de archivo y comunicacion de imagen (PACS) en la practica clinica

    Energy Technology Data Exchange (ETDEWEB)

    Carreo Pedemonte, J.C.; Piqueras Pardellans, J.; Lucaya Layret, J.

    1994-01-01

    Picture archiving and communication systems (PACS) were developed as a technological response to the complex management of the growing amount of information generated by the different diagnostic imaging methods. This article documents the process of the progressive implementation, starting in January 1991, of the first complete PACS installed in our country. The system installed in our center is composed of acquisition modules for all the imaging methods (computed radiography, ultrasound, computed tomography, digital fluoroscopy and magnetic resonance), a central processing unit, an automatic optical disk for storage and a network of image viewing and diagnostic stations. The preliminary results obtained with its implementation demonstrate that PACS provide a series of functional advantages, especially at the image storage and display levels. In spite of these conveniences, the present high costs of acquisition and maintenance, together with certain technical problems as a result of its complexity, will signify that its generalized application for all imaging methods will not become a reality at most centers in the near future. (Author)

  15. An Improved Reinforcement Learning System Using Affective Factors

    Directory of Open Access Journals (Sweden)

    Takashi Kuremoto

    2013-07-01

    Full Text Available As a powerful and intelligent machine learning method, reinforcement learning (RL has been widely used in many fields such as game theory, adaptive control, multi-agent system, nonlinear forecasting, and so on. The main contribution of this technique is its exploration and exploitation approaches to find the optimal solution or semi-optimal solution of goal-directed problems. However, when RL is applied to multi-agent systems (MASs, problems such as “curse of dimension”, “perceptual aliasing problem”, and uncertainty of the environment constitute high hurdles to RL. Meanwhile, although RL is inspired by behavioral psychology and reward/punishment from the environment is used, higher mental factors such as affects, emotions, and motivations are rarely adopted in the learning procedure of RL. In this paper, to challenge agents learning in MASs, we propose a computational motivation function, which adopts two principle affective factors “Arousal” and “Pleasure” of Russell’s circumplex model of affects, to improve the learning performance of a conventional RL algorithm named Q-learning (QL. Compared with the conventional QL, computer simulations of pursuit problems with static and dynamic preys were carried out, and the results showed that the proposed method results in agents having a faster and more stable learning performance.

  16. Pictures of the month

    CERN Multimedia

    Claudia Marcelloni de Oliveira

    Starting with this issue, we will publish special pictures illustrating the ongoing construction and commissioning efforts. If you wish to have a professionnal photographer immortalize your detector before it disappears in the heart of ATLAS or for a special event, don't hesitate to contact Claudia Marcelloni de Oliveira (16-3687) from the CERN photo service. Members of the pixel team preparing to insert the outermost layer (the outer of the three barrel pixel layers) into the Global Support Frame for the Pixel Detector in SR1. Ongoing work on the first Big Wheel on the C side. Exploded view of the side-C Big Wheel and the barrel cryostat. The TRT Barrel services (HV, LV, cooling liquid, active gas, flushing gas) are now completely connected and tested. Hats off to Kirill Egorov, Mike Reilly, Ben Legeyt and Godwin Mayers who managed to fit everything within the small clearance margin!

  17. Health Information Technologies for Geriatrics: The Big Picture.

    Science.gov (United States)

    Crawford, Vallaurie; Syed-Abdul, Shabbir

    2016-01-01

    Nearly five decades ago in 1970, Simone de Beauvoir's "The Coming of Age" painted a broad-strokes picture of urgent issues affecting the welfare of elders in many cultures. Using her agenda and others, this panel will attempt to sketch what specific technological advances and applications offer to older citizens, clients and patients - over these 50 years and into the future. Rapid aging societies warrants the need to transform health systems to be focused on preventions and patient engagement rather than the curative care.

  18. AFFECTION OF ER FLUID ON STIFFNESS OF VIBRATION SYSTEM

    Institute of Scientific and Technical Information of China (English)

    2003-01-01

    On the application of an electric field, the mechanical properties of ER(Electro-rheological) fluid are very complex. The damping force of ER fluid is linear without electric field and is nonlinear when an electric field is applied. By increasing the strength of the electric field, the behavior of ER fluid changes from linear viscous to nonlinear viscoelastic-plastic. External electric fluid changes natural behavior of system with ER fluid besides the mechanical properties of ER fluid. The affect of ER fluid on the stiffness of nonlinear vibration system with ER dampers is analyzed by iterative perturbation method. The results show that the stiffness of structure would be increased with growing of the strength of the electric field.

  19. Thalidomide affects the skeletal system of ovariectomized rats.

    Science.gov (United States)

    Kaczmarczyk-Sedlak, Ilona; Folwarczna, Joanna; Trzeciak, Henryk I

    2009-01-01

    Apart from having written an inglorious chapter in the history of medicine, thalidomide is currently being intensely studied because of its multidimensional activity. The aim of this study was to examine the effects of thalidomide on the skeletal system in ovariectomized and non-ovariectomized rats. The experiments were carried out with female Wistar rats, divided into eight groups: sham-operated control rats; sham-operated rats receiving thalidomide at doses of 15, 30 or 60 mg/kg, po; ovariectomized control rats; ovariectomized rats receiving thalidomide at doses of 15, 30 or 60 mg/kg, po. The drug was administered for 4 weeks. Body mass gain and the mass of the uterus, liver, spleen and thymus were studied. Macrometric parameters and content of mineral substances, calcium and phosphorus in the femur, tibia and L-4 vertebra and histomorphometric parameters of the femur and tibia were examined. In the femur, the mechanical properties of the whole bone and of the femoral neck were examined. Thalidomide did not affect the skeletal system of the non-ovariectomized rats. Bilateral ovariectomy induced osteoporotic skeletal changes in mature female rats. The effects of thalidomide on the skeletal system of ovariectomized rats depended on the dose used. With a dose of 15 mg/kg, po, thalidomide counteracted some osteoporotic changes induced by estrogen deficiency. With a dose of 60 mg/kg, po, thalidomide intensified the destructive effects of estrogen deficiency on the rat skeletal system.

  20. THEORIES AND FACTORS AFFECTING MUCOADHESIVE DRUG DELIVERY SYSTEMS: A REVIEW

    Directory of Open Access Journals (Sweden)

    Alexander Amit

    2011-04-01

    Full Text Available Bioadhesion is an interfacial phenomenon in which two materials, at least one of which is biological, are held together by means of interfacial forces. When the associated biological system is mucous, it is called mucoadhesion. This property of certain polymeric systems have got place in the drug delivery research in order to prolong contact time in the various mucosal route of drug administration, as the ability to maintain a delivery system at a particular location for an extended period of time has a great appeal for both local action as well as systemic drug bioavailability. A complete and comprehensive theory that can predict adhesion based on the chemical and/or physical nature of a polymer is not yet available. Several theories have been proposed to explain the fundamental mechanisms of adhesion such as glues, adhesives, and paints, have been adopted to study the mucoadhesion. Mucoadhesion is a complex process and numerous theories have been presented to explain the mechanisms involved. These theories include mechanical-interlocking, electrostatic, diffusion–interpenetration, adsorption and fracture processes. They are Electronic theory, Adsorption theory, Wetting theory, Diffusion theory, Fracture theory. The objective of the study is to explain the different mechanisms involved in mucoadhesion and various factors affecting mucoadhesion.

  1. Externalizing proneness and brain response during pre-cuing and viewing of emotional pictures.

    Science.gov (United States)

    Foell, Jens; Brislin, Sarah J; Strickland, Casey M; Seo, Dongju; Sabatinelli, Dean; Patrick, Christopher J

    2016-07-01

    Externalizing proneness, or trait disinhibition, is a concept relevant to multiple high-impact disorders involving impulsive-aggressive behavior. Its mechanisms remain disputed: major models posit hyperresponsive reward circuitry or heightened threat-system reactivity as sources of disinhibitory tendencies. This study evaluated alternative possibilities by examining relations between trait disinhibition and brain reactivity during preparation for and processing of visual affective stimuli. Forty females participated in a functional neuroimaging procedure with stimuli presented in blocks containing either pleasurable or aversive pictures interspersed with neutral, with each picture preceded by a preparation signal. Preparing to view elicited activation in regions including nucleus accumbens, whereas visual regions and bilateral amygdala were activated during viewing of emotional pictures. High disinhibition predicted reduced nucleus accumbens activation during preparation within pleasant/neutral picture blocks, along with enhanced amygdala reactivity during viewing of pleasant and aversive pictures. Follow-up analyses revealed that the augmented amygdala response was related to reduced preparatory activation. Findings indicate that participants high in disinhibition are less able to process implicit cues and mentally prepare for upcoming stimuli, leading to limbic hyperreactivity during processing of actual stimuli. This outcome is helpful for integrating findings from studies suggesting reward-system hyperreactivity and others suggesting threat-system hyperreactivity as mechanisms for externalizing proneness. PMID:26113614

  2. Painting Pictures with Whisky

    Science.gov (United States)

    Kim, Hyoungsoo; Boulogne, François; Um, Eujin; Jacobi, Ian; Stone, Howard

    2014-11-01

    Have you ever looked at the dried mark of whisky on the glass? While the whisky evaporates, various solid components inside the whisky are deposited with a peculiar pattern, which creates a beautiful picture. This particle patterning is induced by the solutal Marangoni effect. We investigate this effect on both the flow behavior and the particle deposition patterns in binary-mixture droplet evaporation by varying the concentration ratio between ethanol and water. To visualize the particle and fluid motion, we perform Particle Image Velocimetry. We observe that at the beginning stage complex circulating flow patterns occurred, which are triggered by the surface tension gradient, i.e. Marangoni effect. Ethanol first evaporates due to the lower vapor pressure compared to water. When the ethanol has vanished, a radial flow pattern is observed. Furthermore, we find that as the initial ethanol concentration increases, the mobility of the receding contact line increased. At high ethanol concentrations, the contact line kept receding so as to draw groups of particles that deposited in an annular pattern. We thank Ernie Button for sharing with us many beautiful images of whisky after it had dried.

  3. Changes to freshwater systems affecting Arctic infrastructure and natural resources

    Science.gov (United States)

    Instanes, Arne; Kokorev, Vasily; Janowicz, Richard; Bruland, Oddbjørn; Sand, Knut; Prowse, Terry

    2016-03-01

    The resources component of the Arctic Freshwater Synthesis focuses on the potential impact of future climate and change on water resources in the Arctic and how Arctic infrastructure and exploration and production of natural resources are affected. Freshwater availability may increase in the Arctic in the future in response to an increase in middle- and high-latitude annual precipitation. Changes in type of precipitation, its seasonal distribution, timing, and rate of snowmelt represent a challenge to municipalities and transportation networks subjected to flooding and droughts and to current industries and future industrial development. A reliable well-distributed water source is essential for all infrastructures, industrial development, and other sectorial uses in the Arctic. Fluctuations in water supply and seasonal precipitation and temperature may represent not only opportunities but also threats to water quantity and quality for Arctic communities and industrial use. The impact of future climate change is varying depending on the geographical area and the current state of infrastructure and industrial development. This paper provides a summary of our current knowledge related to the system function and key physical processes affecting northern water resources, industry, and other sectorial infrastructure.

  4. The Big Picture.

    Science.gov (United States)

    Naturescope, 1987

    1987-01-01

    Contains a series of activities which focus on the process of extinction, how the increasing human population affects other species, and on the reasons for helping endangered species. Includes diagrams and illustrations of endangered species. (ML)

  5. 32 CFR 705.9 - Availability of motion pictures to external audiences.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 5 2010-07-01 2010-07-01 false Availability of motion pictures to external... motion pictures to external audiences. (a) Public access. Navy and Marine Corps general motion pictures... out by Patent Counsel, Naval Air Systems Command (AIR-OOP). Cleared motion pictures may also be...

  6. Factors affecting economies of scale in combined sewer systems.

    Science.gov (United States)

    Maurer, Max; Wolfram, Martin; Anja, Herlyn

    2010-01-01

    A generic model is introduced that represents the combined sewer infrastructure of a settlement quantitatively. A catchment area module first calculates the length and size distribution of the required sewer pipes on the basis of rain patterns, housing densities and area size. These results are fed into the sewer-cost module in order to estimate the combined sewer costs of the entire catchment area. A detailed analysis of the relevant input parameters for Swiss settlements is used to identify the influence of size on costs. The simulation results confirm that an economy of scale exists for combined sewer systems. This is the result of two main opposing cost factors: (i) increased construction costs for larger sewer systems due to larger pipes and increased rain runoff in larger settlements, and (ii) lower costs due to higher population and building densities in larger towns. In Switzerland, the more or less organically grown settlement structures and limited land availability emphasise the second factor to show an apparent economy of scale. This modelling approach proved to be a powerful tool for understanding the underlying factors affecting the cost structure for water infrastructures.

  7. Pictures in Pictures: Art History and Art Museums in Children's Picture Books

    Science.gov (United States)

    Yohlin, Elizabeth

    2012-01-01

    Children's picture books that recreate, parody, or fictionalize famous artworks and introduce the art museum experience, a genre to which I will refer as "children's art books," have become increasingly popular over the past decade. This essay explores the pedagogical implications of this trend through the family program "Picture Books and Picture…

  8. Affect Theory and Autoethnography in Ordinary Information Systems

    DEFF Research Database (Denmark)

    Bødker, Mads; Chamberlain, Alan

    This paper uses philosophical theories of affect as a lens for exploring autoethnographic renderings of everyday experience with information technology. Affect theories, in the paper, denote a broad trend in post-humanistic philosophy that explores sensation and feeling as emergent and relational...... precognitive forces that impinge on a body and its capacity to act. A necessarily truncated account of affect theory, and three autoethnographic vignettes are presented to complement the philosophical exposition and to provide reflections on possible empirical tactics for affective research in IS. Inspired...

  9. Perceptual representations in false recognition and priming of pictures.

    Science.gov (United States)

    Weinstein, Yana; Shanks, David R

    2008-12-01

    Using a new procedure, we investigate whether imagination can induce false memory by creating a perceptual representation. Participants studied pictures and words with and without an imagery task and at test performed both a direct recognition test and an indirect perceptual identification test on pictorial stimuli. Corrected false recognition rates were 7% for pictures studied in word form (Experiment 1), 26% for pictures imagined once (Experiment 2), and 48% for pictures imagined multiple times (Experiment 3), although on the indirect test, no priming was found for these items. Furthermore, a perceptual/conceptual imagery manipulation did not affect the tendency to claim that imagined items had been studied as pictures (Experiment 4). These results suggest that the false memories reported on direct tests are not driven by perceptual representations. PMID:19015501

  10. Ubiquitous picture-rich content representation

    Science.gov (United States)

    Wang, Wiley; Dean, Jennifer; Muzzolini, Russ

    2010-02-01

    The amount of digital images taken by the average consumer is consistently increasing. People enjoy the convenience of storing and sharing their pictures through online (digital) and offline (traditional) media. A set of pictures can be uploaded to: online photo services, web blogs and social network websites. Alternatively, these images can be used to generate: prints, cards, photo books or other photo products. Through uploading and sharing, images are easily transferred from one format to another. And often, a different set of associated content (text, tags) is created across formats. For example, on his web blog, a user may journal his experiences of his recent travel; on his social network website, his friends tag and comment on the pictures; in his online photo album, some pictures are titled and keyword-tagged. When the user wants to tell a complete story, perhaps in a photo book, he must collect, across all formats: the pictures, writings and comments, etc. and organize them in a book format. The user has to arrange the content of his trip in each format. The arrangement, the associations between the images, tags, keywords and text, cannot be shared with other formats. In this paper, we propose a system that allows the content to be easily created and shared across various digital media formats. We define a uniformed data association structure to connect: images, documents, comments, tags, keywords and other data. This content structure allows the user to switch representation formats without reediting. The framework under each format can emphasize (display or hide) content elements based on preference. For example, a slide show view will emphasize the display of pictures with limited text; a blog view will display highlighted images and journal text; and the photo book will try to fit in all images and text content. In this paper, we will discuss the strategy to associate pictures with text content, so that it can naturally tell a story. We will also list

  11. Personalizing the Collaborative Learning Environment with Pictures

    OpenAIRE

    Brian Mackie; Charletta F. Gutierrez

    2005-01-01

    The Internet and Web-based technologies, as well as rapid globalization, are changing the way businesses communicate. Continuous progress in Information Technology (IT) enables effective and efficient communication, particularly with the use of collaborative systems. Such systems have many different types of interfaces and attributes, and one such attribute is the use of visuals. This research assesses the usefulness of participant pictures in a collaborative exchange. To evaluate the usefuln...

  12. Pictures, images, and recollective experience.

    Science.gov (United States)

    Dewhurst, S A; Conway, M A

    1994-09-01

    Five experiments investigated the influence of picture processing on recollective experience in recognition memory. Subjects studied items that differed in visual or imaginal detail, such as pictures versus words and high-imageability versus low-imageability words, and performed orienting tasks that directed processing either toward a stimulus as a word or toward a stimulus as a picture or image. Standard effects of imageability (e.g., the picture superiority effect and memory advantages following imagery) were obtained only in recognition judgments that featured recollective experience and were eliminated or reversed when recognition was not accompanied by recollective experience. It is proposed that conscious recollective experience in recognition memory is cued by attributes of retrieved memories such as sensory-perceptual attributes and records of cognitive operations performed at encoding. PMID:7931096

  13. From emotion perception to emotion experience: emotions evoked by pictures and classical music.

    Science.gov (United States)

    Baumgartner, Thomas; Esslen, Michaela; Jäncke, Lutz

    2006-04-01

    Most previous neurophysiological studies evoked emotions by presenting visual stimuli. Models of the emotion circuits in the brain have for the most part ignored emotions arising from musical stimuli. To our knowledge, this is the first emotion brain study which examined the influence of visual and musical stimuli on brain processing. Highly arousing pictures of the International Affective Picture System and classical musical excerpts were chosen to evoke the three basic emotions of happiness, sadness and fear. The emotional stimuli modalities were presented for 70 s either alone or combined (congruent) in a counterbalanced and random order. Electroencephalogram (EEG) Alpha-Power-Density, which is inversely related to neural electrical activity, in 30 scalp electrodes from 24 right-handed healthy female subjects, was recorded. In addition, heart rate (HR), skin conductance responses (SCR), respiration, temperature and psychometrical ratings were collected. Results showed that the experienced quality of the presented emotions was most accurate in the combined conditions, intermediate in the picture conditions and lowest in the sound conditions. Furthermore, both the psychometrical ratings and the physiological involvement measurements (SCR, HR, Respiration) were significantly increased in the combined and sound conditions compared to the picture conditions. Finally, repeated measures ANOVA revealed the largest Alpha-Power-Density for the sound conditions, intermediate for the picture conditions, and lowest for the combined conditions, indicating the strongest activation in the combined conditions in a distributed emotion and arousal network comprising frontal, temporal, parietal and occipital neural structures. Summing up, these findings demonstrate that music can markedly enhance the emotional experience evoked by affective pictures.

  14. Neural systems supporting cognitive-affective interactions in adolescence: The role of puberty and implications for affective disorders

    Directory of Open Access Journals (Sweden)

    Cecile D. Ladouceur

    2012-08-01

    Full Text Available Evidence from longitudinal studies suggests that adolescence may represent a period of vulnerability that, in the context of adverse events, could contribute to developmental trajectories toward behavioral and emotional health problems, including affective disorders. Adolescence is also a sensitive period for the development of neural systems supporting cognitive-affective processes, which have been implicated in the pathophysiology of affective disorders such as anxiety and mood disorders. In particular, the onset of puberty brings about a cascade of physical, hormonal, psychological, and social changes that contribute in complex ways to the development of these systems. This article provides a brief overview of neuroimaging research pertaining to the development of cognitive-affective processes in adolescence. It also includes a brief review of evidence from animal and human neuroimaging studies suggesting that sex steroids influence the connectivity between prefrontal cortical and subcortical limbic regions in ways that contribute to increased reactivity to emotionally salient stimuli. We integrate these findings in the context of a developmental affective neuroscience framework suggesting that the impact of rising levels of sex steroids during puberty on fronto-limbic connectivity may be even greater in the context of protracted development of prefrontal cortical regions in adolescence. We conclude by discussing the implications of these findings for future research aimed at identifying neurodevelopmental markers of risk for future onset of affective disorders.

  15. Complexity: The bigger picture

    CERN Document Server

    Vicsek, Tamás

    2010-01-01

    If a concept is not well defined, there are grounds for its abuse. This is particularly true of complexity, an inherently interdisciplinary concept that has penetrated very different fields of intellectual activity from physics to linguistics, but with no underlying, unified theory. Complexity has become a popular buzzword used in the hope of gaining attention or funding -- institutes and research networks associated with complex systems grow like mushrooms. Why and how did it happen that this vague notion has become a central motif in modern science? Is it only a fashion, a kind of sociological phenomenon, or is it a sign of a changing paradigm of our perception of the laws of nature and of the approaches required to understand them? Because virtually every real system is inherently extremely complicated, to say that a system is complex is almost an empty statement - couldn't an Institute of Complex Systems just as well be called an Institute for Almost Everything? Despite these valid concerns, the world is ...

  16. Scanning bubble chamber pictures

    CERN Multimedia

    1974-01-01

    These were taken at the 2 m hydrogen bubble chamber. The photo shows an early Shiva system where the pre-measurements needed to qualify the event were done manually (cf photo 7408136X). The scanning tables were located in bld. 12. Gilberte Saulmier sits on foreground, Inge Arents at centre.

  17. Could positive affect help engineer robot control systems?

    Science.gov (United States)

    Quirin, Markus; Hertzberg, Joachim; Kuhl, Julius; Stephan, Achim

    2011-11-01

    Emotions have long been seen as counteracting rational thought, but over the last decades, they have been viewed as adaptive processes to optimize human (but also animal) behaviour. In particular, positive affect appears to be a functional aspect of emotions closely related to that. We argue that positive affect as understood in Kuhl's PSI model of the human cognitive architecture appears to have an interpretation in state-of-the-art hybrid robot control architectures, which might help tackle some open questions in the field.

  18. Snake pictures draw more early attention than spider pictures in non-phobic women: evidence from event-related brain potentials.

    Science.gov (United States)

    Van Strien, J W; Eijlers, R; Franken, I H A; Huijding, J

    2014-02-01

    Snakes were probably the first predators of mammals and may have been important agents of evolutionary changes in the primate visual system allowing rapid visual detection of fearful stimuli (Isbell, 2006). By means of early and late attention-related brain potentials, we examined the hypothesis that more early visual attention is automatically allocated to snakes than to spiders. To measure the early posterior negativity (EPN), 24 healthy, non-phobic women watched the random rapid serial presentation of 600 snake pictures, 600 spider pictures, and 600 bird pictures (three pictures per second). To measure the late positive potential (LPP), they also watched similar pictures (30 pictures per stimulus category) in a non-speeded presentation. The EPN amplitude was largest for snake pictures, intermediate for spider pictures and smallest for bird pictures. The LPP was significantly larger for both snake and spider pictures when compared to bird pictures. Interestingly, spider fear (as measured by a questionnaire) was associated with EPN amplitude for spider pictures, whereas snake fear was not associated with EPN amplitude for snake pictures. The results suggest that ancestral priorities modulate the early capture of visual attention and that early attention to snakes is more innate and independent of reported fear.

  19. Information Systems in Organisations --organisational culture affects information systems in organizations

    Institute of Scientific and Technical Information of China (English)

    张娟

    2013-01-01

    In today’s information age, the application and construction of information systems became the central element of organizational development. Except the influence of information technology, the organisational culture plays a most important role in the implementation of information systems. This paper aimed at information producers, information users, information content and the information channels four parts of information elements to analysis the affects of organisational culture on information system in organisations. In particular, power distance, individualism and collectivism and uncertainty avoidance as three main theory models of Hofstede’s culture theory were be applied in this paper.

  20. Factors affecting Maillard induced gelation of protein-sugar systems

    OpenAIRE

    Azhar, Mat Easa

    1996-01-01

    Gelation due to the Maillard reaction took place when solutions containing a low level of bovine serum albumin were heated in the presence of carbonyl compounds. The Maillard reaction caused a change in colour, a decrease in the pH and induced gelation. These changes were dependent on the type and concentration of sugars or protein and on the heating conditions used. Reducing sugar and Maillard reaction products (e.g. glyoxal) affected these changes, yet their order of reactivity for browning...

  1. Factors Affecting the Profitability of Azerbaijan Banking System

    OpenAIRE

    Nuriyeva, Zülfiyye

    2014-01-01

    ABSTRACT: The financial services industry varies day by day and the evaluation of the profitability of the financial institution become an important aspect in nowadays. Banks are the integral part of the financial market, and in order to stay at that level necessary to determine how banks operate and what factors affect their profitability. This thesis investigates factors influencing the profitability of banks in Azerbaijan. The external and internal factors were reviewed, and the relationsh...

  2. [Sleep and dreams in pictures].

    Science.gov (United States)

    Stoll, R T

    1995-04-11

    Human life is divided into two thirds wakefulness and one third sleep. A newborn child sleeps to strengthen, the adult for regeneration. At the end of life man sinks down into the sleep of death: Hypnos and Thanatos are twin sons of the Queen of Night. Myths from different cultures are influenced by the experience of sleep and its inner world of pictures, the dreams. Artists, painters and sculptors let their visions float steadily into new pictures, and creatures of sleep formed out of diverse materials. Devine sleep, sleep for new life, sleep of health, creative sleep, prophetic sleep, sleep for revelation and for decisions. PMID:7732243

  3. THEORIES AND FACTORS AFFECTING MUCOADHESIVE DRUG DELIVERY SYSTEMS: A REVIEW

    OpenAIRE

    Alexander Amit; Sharma Sharad; Ajazuddin,; Khan Mohammed Junaid; Swarna

    2011-01-01

    Bioadhesion is an interfacial phenomenon in which two materials, at least one of which is biological, are held together by means of interfacial forces. When the associated biological system is mucous, it is called mucoadhesion. This property of certain polymeric systems have got place in the drug delivery research in order to prolong contact time in the various mucosal route of drug administration, as the ability to maintain a delivery system at a particular location for an extended period of...

  4. Switching between Sensory and Affective Systems Incurs Processing Costs

    Science.gov (United States)

    Vermeulen, Nicolas; Niedenthal, Paula M.; Luminet, Olivier

    2007-01-01

    Recent models of the conceptual system hold that concepts are grounded in simulations of actual experiences with instances of those concepts in sensory-motor systems (e.g., Barsalou, 1999, 2003; Solomon & Barsalou, 2001). Studies supportive of such a view have shown that verifying a property of a concept in one modality, and then switching to…

  5. The Picture of Dorian Gray

    NARCIS (Netherlands)

    Wilde, Oscar

    2005-01-01

    On its first publication The Picture of Dorian Gray was regarded as dangerously modern in its depiction of fin-de-sicle decadence. In this updated version of the Faust story, the tempter is Lord Henry Wotton, who lives selfishly for amoral pleasure; Dorian's good angel is the portrait painter Basil

  6. How Institutions Affect Outcomes in Laboratory Tradable Fishing Allowance Systems

    OpenAIRE

    Anderson, Christopher M.

    2004-01-01

    The objective of this paper is to illustrate that economic institutions matter, i.e., that different rules of trade present different incentives for bidding, asking, and trading in new markets, and that these different incentives lead to different price discovery patterns, which yield materially different outcomes. In a laboratory tradable fishing allowance system, when trade takes place through a double auction, which parallels an institution common in extant tradable allowance systems, mark...

  7. An Improved Reinforcement Learning System Using Affective Factors

    OpenAIRE

    Takashi Kuremoto; Tetsuya Tsurusaki; Kunikazu Kobayashi; Shingo Mabu; Masanao Obayashi

    2013-01-01

    As a powerful and intelligent machine learning method, reinforcement learning (RL) has been widely used in many fields such as game theory, adaptive control, multi-agent system, nonlinear forecasting, and so on. The main contribution of this technique is its exploration and exploitation approaches to find the optimal solution or semi-optimal solution of goal-directed problems. However, when RL is applied to multi-agent systems (MASs), problems such as “curse of dimension”, “perceptual aliasin...

  8. Bimusicalism: The Implicit Dual Enculturation of Cognitive and Affective Systems.

    Science.gov (United States)

    Wong, Patrick C M; Roy, Anil K; Margulis, Elizabeth Hellmuth

    2009-12-01

    One prominent example of globalization and mass cultural exchange is bilingualism, whereby world citizens learn to understand and speak multiple languages. Music, similar to language, is a human universal, and subject to the effects of globalization. In two experiments, we asked whether bimusicalism exists as a phenomenon, and whether it can occur even without explicit formal training and extensive music-making. Everyday music listeners who had significant exposure to music of both Indian (South Asian) and Westerners traditions (IW listeners) and listeners who had experience with only Indian or Western culture (I or W listeners) participated in recognition memory and tension judgment experiments where they listened to Western and Indian music. We found that while I and W listeners showed an in-culture bias, IW listeners showed equal responses to music from both cultures, suggesting that dual mental and affective sensitivities can be extended to a nonlinguistic domain. PMID:20657798

  9. Analysis of Factors Affecting Testing in Object oriented systems

    Directory of Open Access Journals (Sweden)

    Mrs. Sujata Khatri,

    2011-03-01

    Full Text Available Software testing is an important software quality assurance activity to ensure that the benefits of Object oriented programming will be realized. Testing object oriented systems is little bit challenging ascomplexity shifted from functions and procedures as in traditional procedural systems to the interconnections among its components. Object oriented development has presented a numerous variety of new challenges due to its features like encapsulation, inheritance, polymorphism and dynamic binding. Earlier the faults used to bein the software units, whereas the problem now is primarily in the way in which we connect the software. Development is writing the code, testing is finding out whether or not the code runs the way you expect it to. A major challenge to the software developers remains how to reduce the cost while improving the quality of software testing. Software testing is difficult and expensive, and testing object oriented system is even more difficult. A tester often needs to spend significant time in developing lengthy testing code to ensure that system under test is reasonably well tested. Substantial research has been carried out in object oriented analysis, design.However relatively less attention has been paid to testing of object oriented programs. This paper describes the various features of object oriented programming and how they effect testing of object oriented systems.

  10. Automatic analysis of BEBC pictures using the flying spot digitizer

    CERN Document Server

    Bacilieri, P; Luvisetto, M L; Masetti, M; Matteuzzi, P; Simoni, L

    1977-01-01

    In future experiments at CERN using the SPS (Super Proton Synchrotron) , pictures will be obtained from the big bubble chambers, BEBC and Gargamelle. Until now only a few thousands BEBC pictures have been taken in experiments with the existing PS accelerator. BEBC pictures are much more difficult to analyse by means of automatic devices than ones from the 2 m bubble chamber. Therefore it is necessary to sophisticate the automatic measuring system using an HPD (a mechanical Flying Spot Digitizer) or to develop new systems; for instance, Erasme recently built at CERN. Through a sophistication of the HPD device, the use of a home-made processor to get track segments and the development of a new program chain, which allows one to follow spiralizing tracks, a new system has been developed and it allows the automatic processing of BEBC pictures. (1 refs).

  11. Automatic analysis of BEBC pictures using the flying spot digitizer

    International Nuclear Information System (INIS)

    In future experiments at CERN using the SPS (Super Proton Synchrotron), pictures will be obtained from the big bubble chambers, BEBC and Gargamelle. Until now only a few thousands BEBC pictures have been taken in experiments with the existing PS accelerator. BEBC pictures are much more difficult to be analysed by means of automatic devices than the ones from 2 m bubble chamber. Therefore it is necessary to sophisticate the automatic measuring system using an HPD (a mechanical Flying Spot Digitizer) or to develop new systems like, for instance, Erasme recently built at CERN. Through a sophistication of the HPD device, the use of a home-made processor to get track segments and the development of a new program chain, which allows to follow spiralizing tracks, and the use of an interactive refreshing display for help, a new system has been developed and it allows the automatic processing of BEBC pictures. (Auth.)

  12. Factors Affecting Bacterial Growth in Drinking Water Distribution System

    Institute of Scientific and Technical Information of China (English)

    WEI LU; XIAO-JIAN ZHANG

    2005-01-01

    Objective To define the influence of some parameters, including assimilable organic carbon (AOC), chloramine residual, etc. on the bacterial growth in drinking water distribution systems. Methods Three typical water treatment plants in a northern city (City T) of China and their corresponding distribution systems were investigated. Some parameters of the water samples, such as heterotrophic plate content (HPC), AOC, CODMn, TOC, and phosphate were measured. Results The AOC in most water samples were more than 100 μg/L, or even more than 200 μg/L in some cases. The HPC in distribution systems increased significantly with the decrease of residual chlorine. When the residual chlorine was less than 0.1 mg/L, the magnitude order of HPC was 104 CFU/mL; when it was 0.5-0.7 mg/L, the HPC was about 500 CFU/mL. Conclusion For controlling the biostability of drinking water, the controlling of AOC and residual chlorine should be considered simultaneously. The influence of phosphors on the AOC tests of water is not significant. Phosphors may not be the limiting nutrient in the water distribution systems.

  13. Interactions between Artificial Gravity, Affected Physiological Systems, and Nutrition

    Science.gov (United States)

    Heer, Martina; Baecker, Natalie; Zwart, Sara; Smith, Scott M.

    2007-01-01

    Malnutrition, either by insufficient supply of some nutrients or by overfeeding has a profound effect on the health of an organism. Therefore, optimal nutrition is mandatory on Earth (1 g), in microgravity and also when applying artificial gravity to the human system. Immobilization like in microgravity or bed rest also has a profound effect on different physiological systems, like body fluid regulation, the cardiovascular, the musculoskeletal, the immunological system and others. Up to now there is no countermeasure available which is effective to counteract cardiovascular deconditioning (rf. Chapter 5) together with maintenance of the musculoskeletal system in a rather short period of time. Gravity seems therefore to be one of the main stimuli to keep these systems and application of certain duration of artificial gravity per day by centrifugation has often been proposed as a very potential countermeasure against the weakening of the physiological systems. Up to now, neither optimal intensity nor optimal length of application of artificial gravity has been studied sufficiently to recommend a certain, effective and efficient protocol. However, as shown in chapter 5 on cardiovascular system, in chapter 6 on the neuromuscular system and chapter 7 (bone and connective system) artificial gravity has a very high potential to counteract any degradation caused by immobilization. But, nutrient supply -which ideally should match the actual needs- will interact with these changes and therefore has also to be taken into account. It is well known that astronauts beside the Skylab missions- were and are still not optimally nourished during their stay in space (Bourland et al. 2000;Heer et al. 1995;Heer et al. 2000b;Smith et al. 1997;Smith & Lane 1999;Smith et al. 2001;Smith et al. 2005). It has also been described anecdotally that astronauts have lower appetites. One possible explanation could be altered taste and smell sensations during space flight, although in some early

  14. Severe Traumatic Head Injury Affects Systemic Cytokine Expression

    Science.gov (United States)

    LaPar, Damien J; Rosenberger, Laura H; Walters, Dustin M; Hedrick, Traci L; Swenson, Brian R; Young, Jeffrey S; Dossett, Lesly A; May, Addison K; Sawyer, Robert G

    2012-01-01

    Background The neuroimmunologic effect of traumatic head injury remains ill-defined. This study aimed to characterize systemic cytokine profiles among traumatically injured patients to assess the effect of traumatic head injury on the systemic inflammatory response. Study Design Over five years, 1,022 patients were evaluated from a multi-institutional trauma immunomodulatory database (TIMD). Patients were stratified by presence of severe head injury (SHI, Head ISS ≥ 4, n=335) versus non-severe head injury (NHI, Head ISS ≤ 3, n=687). Systemic cytokine expression was quantified by ELISA within 72 hours of admission. Patient factors, outcomes, and cytokine profiles were compared by univariate analyses. Results SHI patients were more severely injured with higher mortality despite similar ICU infection and ventilator associated pneumonia (VAP) rates. Expression of early pro-inflammatory cytokines, IL-6 (p<0.001) and tumor necrosis factor (TNF)-α (p=0.02), were higher among NHI patients, while expression of immunomodulatory cytokines, interferon-γ (p=0.01) and IL-12 (p=0.003), was higher in SHI patients. High TNF-α levels in NHI patients were associated with mortality (p=0.01), increased mechanical ventilation (p=0.02), and development of VAP (p=0.01). Alternatively, among SHI patients, high IL-2 levels were associated with survival, decreased mechanical ventilation, and absence of VAP. Conclusions The presence of severe traumatic head injury significantly alters systemic cytokine expression and exerts an immunomodulatory effect. Early recognition of these profiles may allow for targeted intervention to reduce patient morbidity and mortality. PMID:22342787

  15. Studying the factors affecting solar power generation systems performance ( SPGSP

    Directory of Open Access Journals (Sweden)

    Jalal A Al-Tabtabaei

    2014-12-01

    Full Text Available Solar energy is a huge, clean and renewable source of energy. It is also available everywhere on the earth. However, there are many technical and economic difficulties need to be solved so that solar energy becomes a strong competition against the traditional energy sources. Energy from the sun can be used successfully in electric power generation systems. Depending on the climate conditions and the use of a properly designed, installing and maintained system can meet a large demand in this request. Work plane for this research will include many steps, the first step will include an introduction to solar energy. The second step will be a short review of the solar energy availability, geometry, fields of applications and the largest commercial application of solar energy is the solar thermal power generation. In addition, the most common types of solar thermal power plants, the solar field, heat transfer fluid and the power conversion system types will be explained in detail. The third step, a simple analysis for the solar thermal power plant will be explained in order to predict the optimum conditions leading to maximum performance. Discussions of results will be the fourth step. The last step a conclusion and recommendation for future work will also be included.

  16. Neural systems supporting and affecting economically relevant behavior

    Directory of Open Access Journals (Sweden)

    Braeutigam S

    2012-05-01

    Full Text Available Sven BraeutigamOxford Centre for Human Brain Activity, University of Oxford, Oxford, United KingdomAbstract: For about a hundred years, theorists and traders alike have tried to unravel and understand the mechanisms and hidden rules underlying and perhaps determining economically relevant behavior. This review focuses on recent developments in neuroeconomics, where the emphasis is placed on two directions of research: first, research exploiting common experiences of urban inhabitants in industrialized societies to provide experimental paradigms with a broader real-life content; second, research based on behavioral genetics, which provides an additional dimension for experimental control and manipulation. In addition, possible limitations of state-of-the-art neuroeconomics research are addressed. It is argued that observations of neuronal systems involved in economic behavior converge to some extent across the technologies and paradigms used. Conceptually, the data available as of today raise the possibility that neuroeconomic research might provide evidence at the neuronal level for the existence of multiple systems of thought and for the importance of conflict. Methodologically, Bayesian approaches in particular may play an important role in identifying mechanisms and establishing causality between patterns of neural activity and economic behavior.Keywords: neuroeconomics, behavioral genetics, decision-making, consumer behavior, neural system

  17. Embodiments, visualizations, and immersion with enactive affective systems

    Science.gov (United States)

    Domingues, Diana; Miosso, Cristiano J.; Rodrigues, Suélia F.; Silva Rocha Aguiar, Carla; Lucena, Tiago F.; Miranda, Mateus; Rocha, Adson F.; Raskar, Ramesh

    2014-02-01

    Our proposal in Bioart and Biomedical Engineering for a ective esthetics focuses on the expanded sensorium and investigates problems regarding enactive systems. These systems enhance the sensorial experiences and amplify kinesthesia by adding the sensations that are formed in response to the physical world, which aesthetically constitutes the principle of synaesthesia. In this paper, we also present enactive systems inside the CAVE, con guring compelling experiences in data landscapes and human a ective narratives. The interaction occurs through the acquisition, data visualization and analysis of several synchronized physiological signals, to which the landscapes respond and provide immediate feedback, according to the detected participants' actions and the intertwined responses of the environment. The signals we use to analyze the human states include the electrocardiography (ECG) signal, the respiratory ow, the galvanic skin response (GSR) signal, plantar pressures, the pulse signal and others. Each signal is collected by using a speci cally designed dedicated electronic board, with reduced dimensions, so it does not interfere with normal movements, according to the principles of transparent technologies. Also, the electronic boards are implemented in a modular approach, so they are independent, and can be used in many di erent desired combinations, and at the same time provide synchronization between the collected data.

  18. Semi-supervised classification of emotional pictures based on feature combination

    Science.gov (United States)

    Li, Shuo; Zhang, Yu-Jin

    2011-02-01

    Can the abundant emotions reflected in pictures be classified automatically by computer? Only the visual features extracted from images are considered in the previous researches, which have the constrained capability to reveal various emotions. In addition, the training database utilized by previous methods is the subset of International Affective Picture System (IAPS) that has a relatively small scale, which exerts negative effects on the discrimination of emotion classifiers. To solve the above problems, this paper proposes a novel and practical emotional picture classification approach, using semi-supervised learning scheme with both visual feature and keyword tag information. Besides the IAPS with both emotion labels and keyword tags as part of the training dataset, nearly 2000 pictures with only keyword tags that are downloaded from the website Flickr form an auxiliary training dataset. The visual feature of the latent emotional semantic factors is extracted by probabilistic Latent Semantic Analysis (pLSA) model, while the text feature is described by binary vectors on the tag vocabulary. A first Linear Programming Boost (LPBoost) classifier which is trained on the samples from IAPS combines the above two features, and aims to label the other training samples from the internet. Then the second SVM classifier which is trained on all training images using only visual feature, focuses on the test images. In the experiment, the categorization performance of our approach is better than the latest methods.

  19. Does the Environment Responsibility Affect the Management Control System?

    Directory of Open Access Journals (Sweden)

    Hichem DKHILI

    2013-06-01

    Full Text Available The literature suggests a problem emerging between management controls systems with the new responsibilities that companies must take into consideration. This study examines a system design management control tool orientation as behaviors that can overcome the uncertainties related to the environment and register the company in a voluntary approach which takes into account the environmental dimensions. A questionnaire survey sent to 306 Tunisian industrial companies was conducted. The results of the exploratory and confirmatory analysis are required. The results of the principal component factor analysis evidenced by Cronbach's alpha and KMO test, helped to cleanse the items selected from the literature. Similarly, the results of structural equations with indices of structural adjustment and parcimonies have devoted a good quality adjustment. Overall, findings suggest that most of the firm’s environment is uncertain, more tools to include in its environmental dimensions. On the other hand, the voluntary integration of an environmental approach is part of a strategy of cost leadership in the Tunisian industrial companies.

  20. Short exposure to telestereoscope affects the oculomotor system.

    Science.gov (United States)

    Neveu, Pascaline; Priot, Anne-Emmanuelle; Plantier, Justin; Roumes, Corinne

    2010-11-01

    Under natural viewing conditions, the accommodation and vergence systems adjust the focus and the binocular alignment of the eyes in response to changes in viewing distance. The two responses are linked via cross-coupling and proceed almost simultaneously. Some optical devices, such as virtual reality or helmet mounted displays, create an oculomotor conflict by modifying demands on both vergence and accommodation. Previous studies extensively investigated the effect of such a conflict on the cross-coupling between vergence and accommodation, but little is known about the plasticity of the whole oculomotor system. In the present study, an oculomotor conflict was induced by a telestereoscope which magnified the standard inter-pupillary separation threefold and thus increased the convergence demand while accommodation remained almost unchanged. The effect of a 10 min exposure was assessed via a series of optometric parameters selected on the basis of existing oculomotor models. Associated with subject's visual complaints, most of the oculomotor parameters tested were modified: there was (1) deterioration of stereoscopic threshold; (2) increase in AC/A ratio; (3) increase in near and far phorias; and (4) shift of the zone of clear and single binocular vision towards convergence. These results showed a change in gain of accommodative vergence and a shift of vergence reserves towards convergence in response to telestereoscopic viewing. The subject's binocular behaviour tended towards esophoria with convergence excess as confirmed by Sheard's and Percival's criteria. Such changes in oculomotor parameters support adaptive behaviour linked with telestereoscopic viewing.

  1. Strings in the abelized picture

    International Nuclear Information System (INIS)

    The transformation properties of the bosonic string variables under the recently discovered abelizing operator are exhibited. The intimate relation of this operator to the light-cone gauge condition is illustrated for the classical string. As an application of the formalism, the derivation of the BRST cohomology by the method of Freeman and Olive is carried over to the abelized picture, where it takes a particulary simple form. 14 refs. (Author)

  2. Bianisotropy Picture of Higher Permeability at Higher Frequencies

    Institute of Scientific and Technical Information of China (English)

    XUE De-Sheng; LI Fa-Shen; FAN Xiao-Long; WEN Fu-Sheng

    2008-01-01

    With an effective bianisotropy picture, high-frequency behaviours of different magnetic materials can be reconciled, and the higher permeability and higher resonance frequencies are achieved even in the GHz range. The validity of the bianisotropy picture is quantitatively refilled by the in-plane anisotropic Fe34Co55Zr11 thin films.A prolate elliptical precession of the magnetization about its equilibrium direction is the key point, which can be induced by an artificial or an intrinsic bianisotropy system.

  3. [Study on pictures in Waike Xinfa Yaojue].

    Science.gov (United States)

    Hu, Xiao-Feng; Li, Hong-Xiao

    2011-07-01

    Collecting 265 pictures, Waike Xinfa Yaojue (written in Qing Dynasty) is the extant ancient surgical book with most pictures. Pictures could be divided into four kinds, i.e. disease and symptoms, meridians, pulse taking and taboos. Pictures on disease and symptoms account for the largest number and appeared most often and those pictures are also with special subject characteristics and of great importance to the diagnosis of surgical diseases. Pictures in ancient medical books played an important role in academic heritage. PMID:22169494

  4. CLIMESCO: evolution of cropping systems as affected by climate change

    Directory of Open Access Journals (Sweden)

    Domenico Ventrella

    2012-03-01

    Full Text Available In this number of Italian Journal of Agronomy, seventeen scientific papers are published on the main results of the project CLIMESCO. This project was supported by three Italian Ministries (“Ministero dell'Istruzione, dell'Università e della Ricerca”, “Ministero delle Politiche Agricole Alimentari e Forestali” and “Ministero dell'Ambiente e della tutela del territorio e del Mare” in the framework of “Fondo Integrativo Speciale Ricerca” (FISR, Special Integrated Research Fund. Most recent studies based on observed data and simulations of future climate conditions showed that the global increase of temperatures is most likely due to the increased concentration of Green House Gases. The effect of warming is unequally distributed around the globe, with some areas more sensitive to climate change than others, as the Mediterranean region. Climate change over this region is shown to be characterized by increasing temperatures and by relatively large changes in the frequency of extreme climatic events for both temperature and rainfall. The agricultural and food systems represent one of the most sensitive and vulnerable sectors of the area....

  5. Brain systems for assessing the affective value of faces.

    Science.gov (United States)

    Said, Christopher P; Haxby, James V; Todorov, Alexander

    2011-06-12

    Cognitive neuroscience research on facial expression recognition and face evaluation has proliferated over the past 15 years. Nevertheless, large questions remain unanswered. In this overview, we discuss the current understanding in the field, and describe what is known and what remains unknown. In §2, we describe three types of behavioural evidence that the perception of traits in neutral faces is related to the perception of facial expressions, and may rely on the same mechanisms. In §3, we discuss cortical systems for the perception of facial expressions, and argue for a partial segregation of function in the superior temporal sulcus and the fusiform gyrus. In §4, we describe the current understanding of how the brain responds to emotionally neutral faces. To resolve some of the inconsistencies in the literature, we perform a large group analysis across three different studies, and argue that one parsimonious explanation of prior findings is that faces are coded in terms of their typicality. In §5, we discuss how these two lines of research--perception of emotional expressions and face evaluation--could be integrated into a common, cognitive neuroscience framework.

  6. Brassinosteroid signal transduction: An emerging picture

    Institute of Scientific and Technical Information of China (English)

    WANG Qiaomei; MA Ligeng

    2003-01-01

    Steroid hormones play essential roles in animal growth and development. Steroid signaling in animal system is focused on the direct gene regulation response mediated by its nuclear receptors. Recently, steroid hormones are also found in plants. Identification of BRI1 - a critical component of the plasma-membrane steroid receptor complex, and the related signal transduction pathway mediated by the membrane receptor have revealed an elementary picture of BR signaling from the cell surface perception to the activation of BR-responsive nuclear genes.

  7. Nonlocalized cluster dynamics and container picture

    International Nuclear Information System (INIS)

    A container picture is proposed for understanding cluster dynamics where the clusters make nonlocalized motion occupying the lowest orbit of the cluster mean-field potential characterized by the size parameter ''B'' in the THSR (Tohsaki-Horiuchi-Schuck-Röpke) wave function. The nonlocalized cluster aspects of the inversion-doublet bands in 20Ne which have been considered as a typical manifestation of localized clustering are discussed. In the α+16O system, localization is entirely of kinematical origin, that is, due to the inter-cluster Pauli repulsion. It is concluded that this feature is general for nuclear cluster states

  8. Do hospital physicians really want to go digital? Acceptance of a picture archiving and communication system in a university hospital; Moechten Krankenhausaerzte wirklich auf digitale Systeme umsteigen? Die Akzeptanz gegenueber einem Bildarchivierungs- und Uebermittlungssystem in einer Universitaetsklinik

    Energy Technology Data Exchange (ETDEWEB)

    Duyck, P.; Pynoo, B.; Devolder, P.; Voet, T.; Adang, L.; Vercruysse, J. [Radiologie und medizinische Bildgebung, Universitaetsklinik Gent (Belgium)

    2008-07-15

    Purpose: radiology departments are making the transition from analog film to digital images by means of PACS (Picture Archiving and Communication System). It is critical for the hospital that its physicians adopt and accept the new digital work method regarding radiological information. The aim of this study is to investigate hospital physicians' acceptance of PACS using questionnaires pre- and post-implementation and to identify main influencing factors. Materials and methods: the study was conducted in an 1169 bed university hospital. The UTAUT (Unified Theory of Acceptance and Use of Technology) questionnaire was administered at two times: one month pre-implementation (T1) and 1.5 years post-implementation (T2) of PACS, targeting all hospital physicians with the exemption of radiologists. The UTAUT scales (Behavioral Intention BI; Facilitating Conditions FC; Effort Expectancy EE; Performance Expectancy PE; Anxiety ANX; Social Influence SI; System Use USE; Attitude toward technology ATT; Self-Efficacy SE) were used to assess questions regarding: (a) PACS' usefulness, (b) PACS' ease of learning/using, (c) PACS support availability, (d) the perceived pressure to use PACS, (e) physicians' attitude towards PACS and (f) physicians' intention to use and actual use of PACS. Results: at T1 scale ratings were positive toward the PACS implementation. The ratings on all scales with the exception of self-efficacy improved at T2. Regression analysis revealed that the key factor for intention to use PACS at T1 was the usefulness of PACS, while the availability and awareness of support was its most important predictor at T2. Overall, PE was the best predictor of BI, but all four UTAUT-determinants (PE, FC, EE and SI) were salient for its prediction. Variance explained in BI ranged from 31 to 37% while variance explained in USE was very low (3%). (orig.)

  9. [Is the PACS feasible for a large radiological department? Reflections on the image data volume of the Medical Radiation Institute of the University of Tübingen in 1983. Picture Archiving and Communication System].

    Science.gov (United States)

    Bautz, W; Kolbe, J

    1986-06-01

    Picture Archiving and Communication Systems (PACS) are getting more and more important for departments of radiology with the increasing spread of digital imaging methods. To determine the demands made on such systems, we calculated the digital image data volume for all examinations carried out in 1983 at the Department of Medical Radiology of the University of Tübingen. 20.37% of all examinations were performed with digitalised equipment. Plain radiography takes the lion's share among the total number of image data. If digitalisation is based on a spatial resolution of 8 Lp/mm, the share is 98.4% of the total image data volume of 7 123 GByte. This figure is far in excess of the estimates stated in literature. The possibilities of image data reduction and feasibility of a major PACS are discussed. PMID:3524963

  10. A Picture of Subsidized Housholds 2008

    Data.gov (United States)

    Department of Housing and Urban Development — Picture of Subsidized Households describes the nearly 5 million households living in HUD-subsidized housing in the United States for the year 2008. Picture 2008...

  11. A Picture of Subsidized Households 2009

    Data.gov (United States)

    Department of Housing and Urban Development — Picture of Subsidized Households describes the nearly 5 million households living in HUD-subsidized housing in the United States for the year 2009. Picture 2009...

  12. Directed forgetting: Comparing pictures and words.

    Science.gov (United States)

    Quinlan, Chelsea K; Taylor, Tracy L; Fawcett, Jonathan M

    2010-03-01

    The authors investigated directed forgetting as a function of the stimulus type (picture, word) presented at study and test. In an item-method directed forgetting task, study items were presented 1 at a time, each followed with equal probability by an instruction to remember or forget. Participants exhibited greater yes-no recognition of remember than forget items for each of the 4 study-test conditions (picture-picture, picture-word, word-word, word-picture). However, this difference was significantly smaller when pictures were studied than when words were studied. This finding demonstrates that the magnitude of the directed forgetting effect can be reduced by high item memorability, such as when the picture superiority effect is operating. This suggests caution in using pictures at study when the goal of an experiment is to examine potential group differences in the magnitude of the directed forgetting effect. PMID:20384417

  13. 医学影像图像存储和传输教学专用系统的开发和应用%Development and application of educational picture archiving and communication system

    Institute of Scientific and Technical Information of China (English)

    王美豪; 冯建武; 余震; 姜亿一; 余苔痕; 潘传迪; 王华晓; 陈伟慧; 郑祥武; 吴恩福; 夏凯愉

    2011-01-01

    本文首先同顾医学影像图像存储与传输系统(picture archiving and communication system,PACS)在医学影像教学中应用的现状与不足,继而介绍温州医学院组建了PACS教学应用实验室,开发建立教学专用影像数据库与医学影像PACS教学专用系统,并将其应用于医学影像实践教学的过程。指出该系统解决了传统医学影像学实践教学存在的弊端,改变了传统的医学影像学教学方法与教学模式,有助于培养学生的实践技能与临床思维,提高了医学影像学教学质量。%To improve the use of the picture archiving and communication system (PACS) in radiology education, we established PACS teaching and learning laboratory in the Wenzhou Medical College, developed the database of radiology education and educational PACS soft system, then applied the system to radiology practice education.This system improved the lack of traditional radiology practice education, changed the traditional teaching method and model, was helpful to develop student' s practical skills and clinical thinking and improve the quality of radiology education.

  14. What is a Picture? : Depiction, Realism, Abstraction

    OpenAIRE

    Newall, Michael

    2010-01-01

    What is a picture? Is it a symbol, a likeness, a trigger of certain visual experiences or cognitive states? Each of these ideas, wrongly placed in competition by earlier theorists, gives some insight into what a picture is. This book draws together, criticises and refines these ideas to develop a new theory of pictures, that understands pictures to be an intrinsically visual from of representation. Using an approach deeply informed by art history and perceptual psychology, it explores the ram...

  15. 32 CFR 705.8 - Motion pictures.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 5 2010-07-01 2010-07-01 false Motion pictures. 705.8 Section 705.8 National... OFFICIAL RECORDS PUBLIC AFFAIRS REGULATIONS § 705.8 Motion pictures. (a) The rules and procedures given in... Navy assists in the production of commercial, privately financed, nontheatrical motion pictures...

  16. Identifying and Incorporating Affective States and Learning Styles in Web-based Learning Management Systems

    OpenAIRE

    Farman Ali Khan; Sabine Graf; Edgar R. Weippl; A Min Tjoa

    2010-01-01

    Learning styles and affective states influence students’ learning. The purpose of this study is to develop a conceptual framework for identifying and integrating learning styles and affective states of a learner into web-based learning management systems and therefore provide learners with adaptive courses and additional individualized pedagogical guidance that is tailored to their learning styles and affective states. The study was carried out in three phases, the first of which was the inve...

  17. Liquid Crystal Motion Picture Projector①

    Institute of Scientific and Technical Information of China (English)

    SHIYongji

    1997-01-01

    A liquid crystal moving picture projector and method are described.Light incident on a liquid crystal display-type device is selectively scattered or transmitted by respective portions of liquid crystal display,and a projection mechanism projects an image formed by either such scattered light or such transmitted light.A liquid cystal moving picture projector includes a liquid crystal display for creating characteristics of an image,and projecttion optics for projecting images sequentially created by the display.The display includes a liquid crystal material capable of temporary storing information at respective areas.The temporary storage may be a function of charge storing directly on liquid crystal material.A method of projecting plural images in sequence includes:creating an image or characteristics of an image in a liquid crystal material,storing such image in such liquid crystal material,directing light at such liquid crystal material,projecting such image as a function of light transmitted through or scattered by such liquid crystal material,and creating a further image in such liquid crystal material for subsequent projection.

  18. Implantação de um mini-pacs (sistema de arquivamento e distribuição de imagens em hospital universitário Mini-PACS (picture archiving and communication system implementation at a university hospital

    Directory of Open Access Journals (Sweden)

    Paulo Mazzoncini de Azevedo-Marques

    2001-08-01

    Full Text Available Este trabalho apresenta a implementação de um mini-PACS (sistema de arquivamento e comunicação de imagens que está sendo estruturado junto ao Serviço de Radiodiagnóstico do Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo, como parte do projeto de um serviço de radiologia digital ("filmless".This paper describes the implementation of a mini-PACS (picture archiving and communication system at a university hospital ("Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo", as a component of a project for a filmless radiology facility.

  19. An Investigation of Factors Affecting Elementary School Students’ BMI Values Based on the System Dynamics Modeling

    OpenAIRE

    Tian-Syung Lan; Kai-Ling Chen; Pin-Chang Chen; Chao-Tai Ku; Pei-Hsuan Chiu; Meng-Hsiang Wang

    2014-01-01

    This study used system dynamics method to investigate the factors affecting elementary school students’ BMI values. The construction of the dynamic model is divided into the qualitative causal loop and the quantitative system dynamics modeling. According to the system dynamics modeling, this study consisted of research on the four dimensions: student’s personal life style, diet-relevant parenting behaviors, advocacy and im...

  20. 76 FR 66006 - Revised Medical Criteria for Evaluating Congenital Disorders That Affect Multiple Body Systems

    Science.gov (United States)

    2011-10-25

    ... Affect Multiple Body Systems AGENCY: Social Security Administration. ACTION: Notice of proposed... Regulations, Social Security Administration, 107 Altmeyer Building, 6401 Security Boulevard, Baltimore..., Social Security Administration, 6401 Security Boulevard, Baltimore, Maryland 21235-6401, (410)...

  1. Testing the snake-detection hypothesis: larger early posterior negativity in humans to pictures of snakes than to pictures of other reptiles, spiders and slugs.

    Science.gov (United States)

    Van Strien, Jan W; Franken, Ingmar H A; Huijding, Jorg

    2014-01-01

    According to the snake detection hypothesis (Isbell, 2006), fear specifically of snakes may have pushed evolutionary changes in the primate visual system allowing pre-attentional visual detection of fearful stimuli. A previous study demonstrated that snake pictures, when compared to spiders or bird pictures, draw more early attention as reflected by larger early posterior negativity (EPN). Here we report two studies that further tested the snake detection hypothesis. In Study 1, we tested whether the enlarged EPN is specific for snakes or also generalizes to other reptiles. Twenty-four healthy, non-phobic women watched the random rapid serial presentation of snake, crocodile, and turtle pictures. The EPN was scored as the mean activity at occipital electrodes (PO3, O1, Oz, PO4, O2) in the 225-300 ms time window after picture onset. The EPN was significantly larger for snake pictures than for pictures of the other reptiles. In Study 2, we tested whether disgust plays a role in the modulation of the EPN and whether preferential processing of snakes also can be found in men. 12 men and 12 women watched snake, spider, and slug pictures. Both men and women exhibited the largest EPN amplitudes to snake pictures, intermediate amplitudes to spider pictures and the smallest amplitudes to slug pictures. Disgust ratings were not associated with EPN amplitudes. The results replicate previous findings and suggest that ancestral priorities modulate the early capture of visual attention.

  2. Testing the snake-detection hypothesis: Larger early posterior negativity in humans to pictures of snakes than to pictures of other reptiles, spiders and slugs.

    Directory of Open Access Journals (Sweden)

    Jan W. Van Strien

    2014-09-01

    Full Text Available According to the snake detection hypothesis (Isbell, 2006, fear specifically of snakes may have pushed evolutionary changes in the primate visual system allowing pre-attentional visual detection of fearful stimuli. A previous study demonstrated that snake pictures, when compared to spiders or bird pictures, draw more early attention as reflected by larger early posterior negativity (EPN. Here we report two studies that further tested the snake detection hypothesis. In Study, 1 we tested whether the enlarged EPN is specific for snakes or also generalizes to other reptiles. Twenty-four healthy, non-phobic women watched the random rapid serial presentation of snake, crocodile, and turtle pictures. The EPN was scored as the mean activity at occipital electrodes (PO3, O1, Oz, PO4, O2 in the 225–300 ms time window after picture onset. The EPN was significantly larger for snake pictures than for pictures of the other reptiles. In study 2, we tested whether disgust plays a role in the modulation of the EPN and whether preferential processing of snakes also can be found in men. Twelve men and twelve women watched snake, spider, and slug pictures. Both men and women exhibited the largest EPN amplitudes to snake pictures, intermediate amplitudes to spider pictures and the smallest amplitudes to slug pictures. Disgust ratings were not associated with EPN amplitudes. The results replicate previous findings and suggest that ancestral priorities modulate the early capture of visual attention.

  3. Portrayals of Bullying: A Content Analysis of Picture Books for Preschoolers

    Science.gov (United States)

    Oppliger, Patrice A.; Davis, Ashley

    2016-01-01

    Bullying affects a significant number of school children in the United States. Great concern for teaching children about bullying is apparent in the number of picture books published with bullying themes. The following study is a content analysis of how bullies and victims are portrayed in picture books suitable for preschoolers. Many of the…

  4. SOFTWARE SUPPORT FOR RICH PICTURES

    DEFF Research Database (Denmark)

    Valente, Andrea; Marchetti, Emanuela

    2010-01-01

    Rich pictures (RP) are common in object-oriented analysis and design courses, but students seem to have problems in integrating them in their projects' workflow. A new software tool is being developed, specific for RP authoring. To better understand students' issues and working practice with RP......, and gather requirements for the tool, we followed a user-centered design approach and performed a usability test with an early prototype. The findings suggest the presence of a gap between some of the modern object-oriented development practices and engineering students' values: some techniques, like RP......, presuppose design skills that are alien to our students. To bridge this gap our tool aims at making design-specific skills optional, enhancing the conceptual analytical skills that software analysis shares with design. Further studies will be conducted to assess the impact of the tool on learning....

  5. On Assisting a Visual-Facial Affect Recognition System with Keyboard-Stroke Pattern Information

    Science.gov (United States)

    Stathopoulou, I.-O.; Alepis, E.; Tsihrintzis, G. A.; Virvou, M.

    Towards realizing a multimodal affect recognition system, we are considering the advantages of assisting a visual-facial expression recognition system with keyboard-stroke pattern information. Our work is based on the assumption that the visual-facial and keyboard modalities are complementary to each other and that their combination can significantly improve the accuracy in affective user models. Specifically, we present and discuss the development and evaluation process of two corresponding affect recognition subsystems, with emphasis on the recognition of 6 basic emotional states, namely happiness, sadness, surprise, anger and disgust as well as the emotion-less state which we refer to as neutral. We find that emotion recognition by the visual-facial modality can be aided greatly by keyboard-stroke pattern information and the combination of the two modalities can lead to better results towards building a multimodal affect recognition system.

  6. The picture superiority effect in a cross-modality recognition task.

    Science.gov (United States)

    Stenbert, G; Radeborg, K; Hedman, L R

    1995-07-01

    Words and pictures were studied and recognition tests given in which each studied object was to be recognized in both word and picture format. The main dependent variable was the latency of the recognition decision. The purpose was to investigate the effects of study modality (word or picture), of congruence between study and test modalities, and of priming resulting from repeated testing. Experiments 1 and 2 used the same basic design, but the latter also varied retention interval. Experiment 3 added a manipulation of instructions to name studied objects, and Experiment 4 deviated from the others by presenting both picture and word referring to the same object together for study. The results showed that congruence between study and test modalities consistently facilitated recognition. Furthermore, items studied as pictures were more rapidly recognized than were items studied as words. With repeated testing, the second instance was affected by its predecessor, but the facilitating effect of picture-to-word priming exceeded that of word-to-picture priming. The finds suggest a two- stage recognition process, in which the first is based on perceptual familiarity and the second uses semantic links for a retrieval search. Common-code theories that grant privileged access to the semantic code for pictures or, alternatively, dual-code theories that assume mnemonic superiority for the image code are supported by the findings. Explanations of the picture superiority effect as resulting from dual encoding of pictures are not supported by the data. PMID:7666756

  7. Aerial projection of three-dimensional motion pictures by electro-holography and parabolic mirrors

    OpenAIRE

    Takashi Kakue; Takashi Nishitsuji; Tetsuya Kawashima; Keisuke Suzuki; Tomoyoshi Shimobaba; Tomoyoshi Ito

    2015-01-01

    We demonstrate an aerial projection system for reconstructing 3D motion pictures based on holography. The system consists of an optical source, a spatial light modulator corresponding to a display and two parabolic mirrors. The spatial light modulator displays holograms calculated by computer and can reconstruct holographic motion pictures near the surface of the modulator. The two parabolic mirrors can project floating 3D images of the motion pictures formed by the spatial light modulator wi...

  8. Affective systems induce formal thought disorder in early-stage psychosis.

    Science.gov (United States)

    Minor, Kyle S; Marggraf, Matthew P; Davis, Beshaun J; Mehdiyoun, Nicole F; Breier, Alan

    2016-05-01

    Although formal thought disorder (FTD) has been described since early conceptualizations of psychosis, its underlying mechanisms are unclear. Evidence suggests FTD may be influenced by affective and cognitive systems; however, few have examined these relationships-with none focusing on early-stage psychosis (EP). In this study, positive FTD and speech production were measured in sex- and race-matched EP (n = 19) and healthy control (n = 19) groups by assessing "reactivity"-a change in experimental compared with baseline conditions-across baseline, affective, and cognitive conditions. Relationships with functioning were also examined within each group. Three key findings emerged: (a) the EP group displayed large differences in positive FTD and speech production, (b) those with EP exhibited affective reactivity for positive FTD, and (c) positive FTD and affective reactivity were linked with poor real-world functioning in EP and these relationships did not considerably change when controlling for positive symptom (e.g., delusions, hallucinations) severity. Our findings provide preliminary evidence that affective, but not cognitive, systems play a critical role in positive FTD. Affective reactivity, in particular, may aid in predicting those with EP who go on to develop serious social impairments. Future work should focus on whether affective systems differentially influence those at separate points on the psychosis-spectrum in an effort to establish evidence-based treatments for FTD. (PsycINFO Database Record PMID:26999283

  9. The giant cold-water coral mound as a nested microbial/metazoan system: physical, chemical, biological and geological picture (ESF EuroDiversity MiCROSYSTEMS)

    OpenAIRE

    Henriet, J.-P.; The MICROSYSTEMS Team

    2009-01-01

    The MiCROSYSTEMS project under the ESF EUROCORES EuroDiversity scheme is a holistic and multi-scale approach in studying microbial diversity and functionality in a nested microbial/metazoan system, which thrives in deep waters: the giant cold-water coral mound. Studies on prolific cold-water coral sites have been carried out from the canyons of the Bay of Biscay to the fjords of the Norwegian margin, while the Pen Duick carbonate mound province off Morocco developed into a joint natural lab f...

  10. Looking under the Bonnet: Factors Affecting Student Adoption of E-Learning Systems in Jordan

    OpenAIRE

    Muneer Mahmood Abbad, David Morris, Carmel de Nahlik

    2009-01-01

    The primary questions addressed in this paper are the following: what are the factors that affect students’ adoption of an e-learning system and what are the relationships among these factors?This paper investigates and identifies some of the major factors affecting students’ adoption of an e-learning system in a university in Jordan. E-learning adoption is approached from the information systems acceptance point of view. This suggests that a prior condition for learning effectively using e-l...

  11. Acute Borrelia infection inducing an APMPPE-like picture.

    Science.gov (United States)

    Al Mousa, Munjid; Koch, Frank

    2016-12-01

    Acute posterior multifocal placoid pigment epitheliopathy (APMPPE) is an uncommon disorder of unknown etiology affecting the retina, the retinal pigment epithelium, and the choroid. Although several etiological factors have been suggested, none has been confirmed. We report a case of APMPPE associated with acute infection of Borreliosis. A 30-year-old man presented with a decrease in vision in the right eye of about 1-week duration. His visual acuity in the right eye was 6/36. Fundus exam revealed the presence of multiple placoid creamy retinal/subretinal lesions in the right eye. Fundus fluorescein angiography supported the diagnosis of APMPPE. Blood tests revealed the presence of concomitant acute Borreliosis infection, as confirmed by IgM. The patient received oral prednisone therapy and amoxicillin. Six weeks later, the visual acuity returned to 6/6, and the patient was symptom free. Borreliosis can have several manifestations in the eye. One of the less common presentations is an APMPPE-like picture. The clinician should suspect acute Borreliosis infection in patients presenting with APMPPE, especially when there is a history of a tick bite, when the patient has systemic symptoms, or when living in/visiting endemic areas. This may help in the prompt management of APMPPE, avoiding complications due to the condition itself, or systemic involvement secondary to the Borreliosis infection. PMID:27294731

  12. Wigner method dynamics in the interaction picture

    DEFF Research Database (Denmark)

    Møller, Klaus Braagaard; Dahl, Jens Peder; Henriksen, Niels Engholm

    1994-01-01

    that the dynamics of the interaction picture Wigner function is solved by running a swarm of trajectories in the classical interaction picture introduced previously in the literature. Solving the Wigner method dynamics of collision processes in the interaction picture ensures that the calculated transition...... probabilities are unambiguous even when the asymptotic potentials are anharmonic. An application of the interaction picture Wigner method to a Morse oscillator interacting with a laser field is presented. The calculated transition probabilities are in good agreement with results obtained by a numerical...

  13. The Picture Book of Quantum Mechanics

    CERN Document Server

    Brandt, Siegmund

    2012-01-01

    The aim of this book is to explain the basic concepts and phenomena of quantum mechanics by means of visualization. Computer-generated illustrations in color are used extensively throughout the text, helping to establish the relation between quantum mechanics—wave functions, interference, atomic structure, and so forth—and classical physics—point mechanics, statistical mechanics, and wave optics. Even more important, by studying the pictures in parallel with the text, readers develop an intuition for such notoriously abstract phenomena as • the tunnel effect • excitation and decay of metastable states • wave-packet motion within a well • systems of distinguishable and indistinguishable particles • free wave packets and scattering in 3 dimensions • angular-momentum decomposition • stationary bound states in various 3-dimensional potentials • hybrid states • Kepler motion of wave packets in the Coulomb field • spin and magnetic resonance Illustrations from experiments in a variety of f...

  14. Neural Systems of Positive Affect: Relevance to Understanding Child and Adolescent Depression?

    OpenAIRE

    Forbes, Erika E.; Dahl, Ronald E.

    2005-01-01

    From an affective neuroscience perspective, the goal of achieving a deeper, more mechanistic understanding of the development of depression will require rigorous models that address the core underlying affective changes. Such an understanding will necessitate developing and testing hypotheses focusing on specific components of the complex neural systems involved in the regulation of emotion and motivation. In this paper, we illustrate these principles by describing one example of this type of...

  15. The giant cold-water coral mound as a nested microbial/metazoan system: physical, chemical, biological and geological picture (ESF EuroDiversity MiCROSYSTEMS)

    Science.gov (United States)

    Henriet, J. P.; Microsystems Team

    2009-04-01

    The MiCROSYSTEMS project under the ESF EUROCORES EuroDiversity scheme is a holistic and multi-scale approach in studying microbial diversity and functionality in a nested microbial/metazoan system, which thrives in deep waters: the giant cold-water coral mound. Studies on prolific cold-water coral sites have been carried out from the canyons of the Bay of Biscay to the fjords of the Norwegian margin, while the Pen Duick carbonate mound province off Morocco developed into a joint natural lab for studying in particular the impact of biogeochemical and microbial processes on modern sedimentary diagenesis within the reef sediments, in complement to the studies on I0DP Exp. 307 cores (Challenger Mound, off Ireland). Major outcomes of this research can be summarized as follows. • IODP Exp. 307 on Challenger Mound had revealed a significant prokaryotic community both within and beneath the carbonate mound. MiCROSYSTEMS unveils a remarkable degree of compartmentalization in such community from the seawater, the coral skeleton surface and mucus to the reef sediments. The occurrence of such multiple and distinct microbial compartments associated with cold-water coral ecosystems promotes opportunities for microbial diversity in the deep ocean. • New cases of co-habitation of cold-water corals and giant deep-water oysters were discovered in the Bay of Biscay, which add a new facet of macrofaunal diversity to cold-water coral reef systems. • The discovery of giant, ancient coral graveyards on the Moroccan mounds not only fuels the debate about natural versus anthropogenic mass extinction, but these open frameworks simultaneously invite for the study of bio-erosion and early diagenesis, in particular organo-mineralization, and of the possible role and significance of these thick, solid rubble patches in 3D mound-building and consolidation. • The assessment of the carbonate budget of a modern cold-water coral mound (Challenger Mound) reveals that only 33 to 40 wt % of

  16. Selected pictures of the month

    CERN Multimedia

    Claudia Marcelloni de Oliveira

    View of a single MDT Big Wheel (on side A in UX15 cavern) taken during its last movement immediately after being assembled and just before being connected to the neighbouring TGC1 wheel. Assembly work on the Cathode Strip Chambers on Small Wheel C in building 190. Connecting the services for the Cathode Strip Chambers. The installation of the optical fibers for the readout of the Cathode Strip Chambers on Small Weel C by the Irvine group. Best from our archives: View of the End Cap Calorimeter and TGC big wheel from the Cryostat side A of ATLAS cavern taken on 22 May 2007. The picture above was taken from the platform in the middle, between the Cryostat and the End-Cap. Muriel hopes you all had a great vacation. She herself had a wonderful time sailing in Galicia (North Western Spain). She can be seen here wearing the traditional dress offered to her by "Los Amigos de las Dornas" (Friends of the Dornas -traditional sailing boats used for fishing) - when she became ...

  17. Picturing and modelling catchments by representative hillslopes

    Science.gov (United States)

    Loritz, Ralf; Hassler, Sibylle; Jackisch, Conrad; Zehe, Erwin

    2016-04-01

    Hydrological modelling studies often start with a qualitative sketch of the hydrological processes of a catchment. These so-called perceptual models are often pictured as hillslopes and are generalizations displaying only the dominant and relevant processes of a catchment or hillslope. The problem with these models is that they are prone to become too much predetermined by the designer's background and experience. Moreover it is difficult to know if that picture is correct and contains enough complexity to represent the system under study. Nevertheless, because of their qualitative form, perceptual models are easy to understand and can be an excellent tool for multidisciplinary exchange between researchers with different backgrounds, helping to identify the dominant structures and processes in a catchment. In our study we explore whether a perceptual model built upon an intensive field campaign may serve as a blueprint for setting up representative hillslopes in a hydrological model to reproduce the functioning of two distinctly different catchments. We use a physically-based 2D hillslope model which has proven capable to be driven by measured soil-hydrological parameters. A key asset of our approach is that the model structure itself remains a picture of the perceptual model, which is benchmarked against a) geo-physical images of the subsurface and b) observed dynamics of discharge, distributed state variables and fluxes (soil moisture, matric potential and sap flow). Within this approach we are able to set up two behavioral model structures which allow the simulation of the most important hydrological fluxes and state variables in good accordance with available observations within the 19.4 km2 large Colpach catchment and the 4.5 km2 large Wollefsbach catchment in Luxembourg without the necessity of calibration. This corroborates, contrary to the widespread opinion, that a) lower mesoscale catchments may be modelled by representative hillslopes and b) physically

  18. An innovative technique for recording picture-in-picture ultrasound videos.

    Science.gov (United States)

    Rajasekaran, Sathish; Finnoff, Jonathan T

    2013-08-01

    Many ultrasound educational products and ultrasound researchers present diagnostic and interventional ultrasound information using picture-in-picture videos, which simultaneously show the ultrasound image and transducer and patient positions. Traditional techniques for creating picture-in-picture videos are expensive, nonportable, or time-consuming. This article describes an inexpensive, simple, and portable way of creating picture-in-picture ultrasound videos. This technique uses a laptop computer with a video capture device to acquire the ultrasound feed. Simultaneously, a webcam captures a live video feed of the transducer and patient position and live audio. Both sources are streamed onto the computer screen and recorded by screen capture software. This technique makes the process of recording picture-in-picture ultrasound videos more accessible for ultrasound educators and researchers for use in their presentations or publications. PMID:23887962

  19. Application and analysis of debris-flow early warning system in Wenchuan earthquake-affected area

    Science.gov (United States)

    Liu, D. L.; Zhang, S. J.; Yang, H. J.; Zhao, L. Q.; Jiang, Y. H.; Tang, D.; Leng, X. P.

    2016-02-01

    The activities of debris flow (DF) in the Wenchuan earthquake-affected area significantly increased after the earthquake on 12 May 2008. The safety of the lives and property of local people is threatened by DFs. A physics-based early warning system (EWS) for DF forecasting was developed and applied in this earthquake area. This paper introduces an application of the system in the Wenchuan earthquake-affected area and analyzes the prediction results via a comparison to the DF events triggered by the strong rainfall events reported by the local government. The prediction accuracy and efficiency was first compared with a contribution-factor-based system currently used by the weather bureau of Sichuan province. The storm on 17 August 2012 was used as a case study for this comparison. The comparison shows that the false negative rate and false positive rate of the new system is, respectively, 19 and 21 % lower than the system based on the contribution factors. Consequently, the prediction accuracy is obviously higher than the system based on the contribution factors with a higher operational efficiency. On the invitation of the weather bureau of Sichuan province, the authors upgraded their prediction system of DF by using this new system before the monsoon of Wenchuan earthquake-affected area in 2013. Two prediction cases on 9 July 2013 and 10 July 2014 were chosen to further demonstrate that the new EWS has high stability, efficiency, and prediction accuracy.

  20. Identifying and Incorporating Affective States and Learning Styles in Web-based Learning Management Systems

    Directory of Open Access Journals (Sweden)

    Farman Ali Khan

    2010-10-01

    Full Text Available Learning styles and affective states influence students’ learning. The purpose of this study is to develop a conceptual framework for identifying and integrating learning styles and affective states of a learner into web-based learning management systems and therefore provide learners with adaptive courses and additional individualized pedagogical guidance that is tailored to their learning styles and affective states. The study was carried out in three phases, the first of which was the investigation and determination of learning styles and affective states which are important for learning. Phase two consisted of the development of an approach for the identification of learning styles and affective states as well as the development of a mechanism to calculate them from the students’ learning interactions within web-based learning management systems. The third phase was to develop a learning strategy that is more personalized and adaptive in nature and tailored to learners’ needs and current situation through considering learners’ learning styles and affective states, aiming to lead to better learning outcomes and progress.

  1. Holographic motion picture camera with Doppler shift compensation

    Science.gov (United States)

    Kurtz, R. L. (Inventor)

    1976-01-01

    A holographic motion picture camera is reported for producing three dimensional images by employing an elliptical optical system. There is provided in one of the beam paths (the object or reference beam path) a motion compensator which enables the camera to photograph faster moving objects.

  2. Magazine Picture Collage in Group Supervision

    Science.gov (United States)

    Shepard, Blythe C.; Guenette, Francis L.

    2010-01-01

    A magazine picture collage activity was used with three female counsellor education students as a vehicle to support them in processing their experience as counsellors in training. The use of magazine picture collage in group supervision is described, and the benefits and challenges are presented. The collages served as jumping-off points for…

  3. The Picture Book and Visual Communications.

    Science.gov (United States)

    Polette, Nancy

    1986-01-01

    Discusses importance of the ability to visualize images evoked by the written word in the development of children's skills in both reading and creative writing. Specific skills involved are noted, examples from picture books are given, and 48 picture books that would be useful to developing such skills are listed. (EM)

  4. The Untapped Potential of Picture Books

    Science.gov (United States)

    Hager, Stephanie

    2015-01-01

    This article discusses the role picture books play in helping young writers. Third-grade students were read engaging picture books for the sole purpose of noticing and naming different features they encountered during the read-alouds. Students were able to recognize the tools many authors and illustrators use such as onomatopoeia, varied font…

  5. USING PICTURES IN THE LANGUAGE CLASSROOM

    Institute of Scientific and Technical Information of China (English)

    1999-01-01

    Visuals are advantageous to language teaching and learning.Effective use of pictures in the lan-guage classroom contributes to stimulate the students’ imagination and creativity,enhance their basic lan-guage skills and heighten their communicative competence.This Paper will present some techniques andactivities with pictures for use in the language class.

  6. Picture Books Peek behind Cultural Curtains.

    Science.gov (United States)

    Marantz, Sylvia; Marantz, Kenneth

    2000-01-01

    Discusses culture in picture books in three general categories: legends and histories; current life in particular areas; and the immigrant experience. Considers the translation of visual images, discusses authentic interpretations, and presents an annotated bibliography of picture books showing cultural diversity including African, Asian, Mexican,…

  7. Nephrogenic systemic fibrosis: clinical picture and treatment

    DEFF Research Database (Denmark)

    Marckmann, Peter; Skov, Lone

    2009-01-01

    , and the histology of deep skin biopsies. Symptomatic treatment with intensive physiotherapy and painkillers is important, but there is no known curative medical treatment. Spontaneous remission of NSF symptoms may occur with recovery of renal function after an episode of acute renal failure, or with kidney...

  8. Rapid induction of false memory for pictures.

    Science.gov (United States)

    Weinstein, Yana; Shanks, David R

    2010-07-01

    Recognition of pictures is typically extremely accurate, and it is thus unclear whether the reconstructive nature of memory can yield substantial false recognition of highly individuated stimuli. A procedure for the rapid induction of false memories for distinctive colour photographs is proposed. Participants studied a set of object pictures followed by a list of words naming those objects, but embedded in the list were names of unseen objects. When subsequently shown full colour pictures of these unseen objects, participants consistently claimed that they had seen them, while discriminating with high accuracy between studied pictures and new pictures whose names did not appear in the misleading word list. These false memories can be reported with high confidence as well as the feeling of recollection. This new procedure allows the investigation of factors that influence false memory reports with ecologically valid stimuli and of the similarities and differences between true and false memories. PMID:20623419

  9. Enhancing productivity of salt affected soils through crops and cropping system

    International Nuclear Information System (INIS)

    The reclamation of salt affected soils needs the addition of soil amendment and enough water to leach down the soluble salts. The operations may also include other simple agronomic techniques to reclaim soils and to know the crops and varieties that may be grown and other management practices which may be followed on such soils (Khan, 2001). The choice of crops to be grown during reclamation of salt affected soils is very important to obtain acceptable yields. This also decides cropping systems as well as favorable diversification for early reclamation, desirable yield and to meet the other requirements of farm families. In any salt affected soils, the following three measures are adopted for reclamation and sustaining the higher productivity of reclaimed soils. 1. Suitable choice of crops, forestry and tree species; 2. Suitable choice of cropping and agroforestry system; 3. Other measures to sustain the productivity of reclaimed soils. (author)

  10. Study and implementation of sounding-rocket picture capture and compression system%探空火箭图像采集与压缩系统的研究与实现

    Institute of Scientific and Technical Information of China (English)

    陈萍; 王林林; 陈志敏; 姜秀杰; 熊蔚明

    2014-01-01

    As is required by sounding rocket utilization,a real-time multi-channel picture capture and compression system applied in sounding rocket is studied and realized in the study,which introduces two key techniques applied in the system.The system bases its architecture on ARM and FPGA,and adopts a dedicated video-compression chip as the core processing unit.By way of improving the reliability of time division multiplexing of cameras and optimizing the control schemes of compression ratio,the system satisfies the requirement of low power consumption and high compression ratio in sounding rockets.It has compact circuit framework,high integration level and great flexibility.Practical tests show that, the system has some good features,such as being light-small,low-power,and low-cost.In the experiment named Space Environment Vertical Exploration,the system shot important scenes,including the separation of rocket head and engine,as well as the deployment of electric field detection boom.By adoption of contour volume evaluation methods,it is concluded that the pictures shot during the flight have sufficient definition for scientific research and engineer application.%针对探空火箭的应用要求,研究并实现了一种多路实时图像采集和压缩系统,介绍了系统实现的方案以及采用的两种关键技术。系统采用了基于ARM和FPGA的嵌入式系统架构,以专用的压缩芯片作为图像处理单元,通过采用提高摄像头分时复用的可靠性和优化压缩比控制方案两条技术途径,解决了图像低功耗、实时压缩等问题。系统电路结构精简,集成度高,灵活性强。实际测试表明:系统性能可靠,具有轻小型、低成本、低功耗等特点,在空间环境垂直探测实验中,系统拍摄到火箭箭头与发动机分离、电场探测伸杆展开等重要画面,使用边缘强度评价法对所得图像进行质量评价,图像清晰度满足科学研究与工程应用的需要。

  11. Chemistry--The Big Picture

    Science.gov (United States)

    Cassell, Anne

    2011-01-01

    Chemistry produces materials and releases energy by ionic or electronic rearrangements. Three structure types affect the ease with which a reaction occurs. In the Earth's crust, "solid crystals" change chemically only with extreme heat and pressure, unless their fixed ions touch moving fluids. On the other hand, in living things, "liquid crystals"…

  12. Employing Textual and Facial Emotion Recognition to Design an Affective Tutoring System

    Science.gov (United States)

    Lin, Hao-Chiang Koong; Wang, Cheng-Hung; Chao, Ching-Ju; Chien, Ming-Kuan

    2012-01-01

    Emotional expression in Artificial Intelligence has gained lots of attention in recent years, people applied its affective computing not only in enhancing and realizing the interaction between computers and human, it also makes computer more humane. In this study, emotional expressions were applied into intelligent tutoring system, where learners'…

  13. Environmental Factors Affecting Computer Assisted Language Learning Success: A Complex Dynamic Systems Conceptual Model

    Science.gov (United States)

    Marek, Michael W.; Wu, Wen-Chi Vivian

    2014-01-01

    This conceptual, interdisciplinary inquiry explores Complex Dynamic Systems as the concept relates to the internal and external environmental factors affecting computer assisted language learning (CALL). Based on the results obtained by de Rosnay ["World Futures: The Journal of General Evolution", 67(4/5), 304-315 (2011)], who observed…

  14. Factors affecting the success of management support systems: analysis and meta-analysis

    NARCIS (Netherlands)

    Gelderman, M.

    1995-01-01

    This paper gives a traditional review and meta-analysis of the literature on management support systems (MSS) success. Based on an extensive survey ofpublished research in the problem domain factors, affecting MSS success as presented. Both a theoretical examination and an overview of empiricalresea

  15. Factors Affecting the Full Use of Library and Information Management Systems by Library Personnel

    Science.gov (United States)

    Skretas, Georgios

    2005-01-01

    Purpose: To provide a general list of factors that affects and determines the full use of library information management systems (LIMS) by library staff. Design/methodology/approach: The factors, which were identified mainly during participation in the implementation of automation projects in Greece, are listed and briefly analysed in categories…

  16. How Planting Density Affects Number and Yield of Potato Minitubers in a Commercial Glasshouse Production System

    NARCIS (Netherlands)

    Veeken, van der A.J.H.; Lommen, W.J.M.

    2009-01-01

    Commercial potato minituber production systems aim at high tuber numbers per plant. This study investigated by which mechanisms planting density (25.0, 62.5 and 145.8 plants/m2) of in vitro derived plantlets affected minituber yield and minituber number per plantlet. Lowering planting density result

  17. Anisotropy of the Subsoil Pore System As Affected by High Mechanical Stresses

    DEFF Research Database (Denmark)

    Berisso, Feto Esimo; Schjønning, Per; Keller, Thomas;

    Arrangements of elementary soil particles during soil formation in combination with biological activity by plant roots and earthworms may yield anisotropy of the non-tilled subsoil pore system. Soil compaction by agricultural machinery is known to affect the soil pore characteristics but only few...

  18. Factors Affecting Electronic Medical Record System Adoption in Small Korean Hospitals

    OpenAIRE

    Park, Young-Taek; Lee, Jinhyung

    2014-01-01

    Objectives The objective of this paper is to investigate the factors affecting adoption of an Electronic Medical Record (EMR) system in small Korean hospitals. Methods This study used survey data on adoption of EMR systems; data included that from various hospital organizational structures. The survey was conducted from April 10 to August 3, 2009. The response rate was 33.5% and the total number of small general hospitals was 144. Data were analyzed using the generalized estimating equation m...

  19. SOME IMPORTANT FACTORS AFFECTING EVOLUTION OF ACTIVITY BASED COSTING (ABC SYSTEM IN EGYPTIAN MANUFACTURING FIRMS

    Directory of Open Access Journals (Sweden)

    Karim MAMDOUH ABBAS

    2014-04-01

    Full Text Available The present investigation aims to determine the factors affecting evolution of Activity Based Costing (ABC system in Egyptian case. The study used the survey method to describe and analyze these factors in some Egyptian firms. The population of the study is Egyptian manufacturing firms. Accordingly, the number of received questionnaires was 392 (23 Egyptian manufacturing firms in the first half of 2013. Finally, the study stated some influencing factors for evolution this system (ABC in Egyptian manufacturing firms.

  20. SOME IMPORTANT FACTORS AFFECTING EVOLUTION OF ACTIVITY BASED COSTING (ABC) SYSTEM IN EGYPTIAN MANUFACTURING FIRMS

    OpenAIRE

    Karim MAMDOUH ABBAS

    2014-01-01

    The present investigation aims to determine the factors affecting evolution of Activity Based Costing (ABC) system in Egyptian case. The study used the survey method to describe and analyze these factors in some Egyptian firms. The population of the study is Egyptian manufacturing firms. Accordingly, the number of received questionnaires was 392 (23 Egyptian manufacturing firms) in the first half of 2013. Finally, the study stated some influencing factors for evolution this system (ABC) in Eg...

  1. Development of NATO's recognized environmental picture

    Science.gov (United States)

    Teufert, John F.; Trabelsi, Mourad

    2006-05-01

    An important element for the fielding of a viable, effective NATO Response Force (NRF) is access to meteorological, oceanographic, geospatial data (GEOMETOC) and imagery. Currently, the available GEOMETOC information suffers from being very fragmented. NATO defines the Recognised Environmental Picture as controlled information base for GEOMETOC data. The NATO REP proposes an architecture that is both flexible and open. The focus lies on enabling a network-centric approach. The key into achieving this is relying on using open, well recognized standards that apply to both the data exchange protocols and the data formats. Communication and information exchange based on open standards enables system interoperability. Diverse systems, each with unique, specialized contributions to an increased understanding of the battlespace, can now cooperate to a manageable information sphere. By clearly defining responsibilities in the generation of information, a reduction in data transfer overhead is achieved . REP identifies three main stages in the dissemination of GEOMETOC data. These are Collection, Fusion (and Analysis) and Publication. A REP architecture has been successfully deployed during the NATO Coalition Warrior Interoperability Demonstration (CWID) in Lillehammer, Norway during June 2005. CWID is an annual event to validate and improve the interoperability of NATO and national Consultation and command, control, communications, computers, intelligence, surveillance, and reconnaissance (C4ISR) systems. With a test case success rate of 84%, it was able to provide relevant GEOMETOC support to the main NRF component headquarters. In 2006, the REP architecture will be deployed and validated during the NATO NRF Steadfast live exercises.

  2. Factors affecting the corrosion rates of ceramics in coal combustion systems

    Energy Technology Data Exchange (ETDEWEB)

    Hurley, J.P. [Univ. of North Dakota, Grand Forks, ND (United States)

    1995-08-01

    The concentrations of approximately a dozen elements in the products of coal combustion affect the corrosion rates of ceramics used to construct the combustion system. The elements, including H, O, Na, Mg, Al, Si, P, S, Cl, K, Ca, and Fe, affect corrosion rates in three ways: as primary corrodants of the materials, as secondary corrodants that affect the activities of the primary corrodants, and by affecting the mass transport rate of the primary corrodants. A full factorial study of corrosion rates performed by varying the concentrations of these elements would involve X{sup n} tests, where X is the number of variations of each element and n is the number of different elements. For three variations (low, medium, and high concentrations) of each of 12 elements, the number of tests is 531,441 for a single temperature and pressure condition. The numbers can be reduced with the use of a fractional factorial test matrix, but the most effective way to perform corrosion tests is to base them on realistic system conditions. In this paper, the effects of the composition and physical state of the products of coal combustion on ceramic corrosion rates are given along with suggestions of appropriate test conditions for specific system components.

  3. Algorithms for coding scanned halftone pictures

    DEFF Research Database (Denmark)

    Forchhammer, Søren; Forchhammer, Morten

    1988-01-01

    A method for coding scanned documents containing halftone pictures, e.g. newspapers and magazines, for transmission purposes is proposed. The halftone screen is estimated and the grey value of each dot is found, thus giving a compact description. At the receiver the picture is rescreened. A novel...... data structure and related algorithms for handling the digital screen without restrictions on the screen parameters is presented. Data compression rates above 20 are obtained for the halftone pictures. The algorithms are suited for implementation with fast dedicated hardware. The rescreening can also...

  4. Rapid induction of false memory for pictures

    OpenAIRE

    Weinstein, Y

    2009-01-01

    In this thesis, a new procedure is proposed which achieves the rapid induction of false recognition memory for rich pictorial stimuli. Chapter 2 presents the basic three-step procedure in which participants study some pictures, imagine others in response to words, and perform a picture recognition test. Imagining pictures leads to a false alarm rate of 27% above baseline (Experiments 1a and 1b). In Chapter 3, a source monitoring test is used to demonstrate that this effect is not solely due t...

  5. Eye movements characteristics of Chinese dyslexic children in picture searching

    Institute of Scientific and Technical Information of China (English)

    HUANG Xu; JING Jin; ZOU Xiao-bing; WANG Meng-long; LI Xiu-hong; LIN Ai-hua

    2008-01-01

    Background Reading Chinese,a kind of ideogram,relies more on visual cognition.The visuospatial cognitive deficit of Chinese dyslexia is an interesting topic that has received much attention.The purpose of current research was to explore the visuopatial cognitive characteristics of Chinese dyslexic children by studying their eye movements via a picture searching test.Methods According to the diagnostic criteria defined by ICD-10,twenty-eight dyslexic children (mean age (10.12+1.42)years) were enrolled from the Clinic of Children Behavioral Disorder in the third affiliated hospital of Sun Yat-sen University.And 28 normally reading children (mean age (10.06±1.29) years),1:1 matched by age,sex,grade and family condition were chosen from an elementary school in Guangzhou as a control group.Four groups of pictures (cock,accident,canyon,meditate) from Picture Vocabulary Test were chosen as eye movement experiment targets.All the subjects carried out the picture searching task and their eye movement data were recorded by an Eyelink Ⅱ High-Speed Eye Tracker.The duration time,average fixation duration,average saccade amplitude,fixation counts and saccade counts were compared between the two groups of children.Results The dyslexic children had longer total fixation duration and average fixation duration (F=7.711,P<0.01;F=4.520,P<0.05),more fixation counts and saccade counts (F=7.498,P<0.01;F=11.040,P<0.01),and a smaller average saccade amplitude (F=29.743,P<0.01) compared with controls.But their performance in the picture vocabulary test was the same as those of the control group.The eye movement indexes were affected by the difficulty of the pictures and words,all eye movement indexes,except saccade amplitude,had a significant difference within groups (P<0.05).Conclusions Chinese dyslexic children have abnormal eye movements in picture searching,applying slow fixations,more fixations and small and frequent saccades.Their abnormal eye movement mode reflects the

  6. A Research on Quality Credit Evaluation System of Food Enterprises Based on Picture Fuzzy Sets%基于情景模糊的食品企业质量信用评价研究

    Institute of Scientific and Technical Information of China (English)

    王铁旦; 罗雪; 彭定洪

    2015-01-01

    科学、客观、权威地评价食品企业质量信用,不仅可为消费者提供正确的信息,消除担忧,确保生命健康,而且可为政府部门食品安全的管理提供决策依据,也促使食品企业按规范完善安全生产内部监控机制,有效发挥企业的自控作用。为此,通过构建一套包含质量信用意愿、能力、质量行为表现及可持续性四个方面的食品企业质量信用评价指标体系,鉴于评价过程决策信息存在的模糊、含糊和犹豫等不确定性特征,应用能更精确地处理和表达模糊信息的情景模糊集(picture fuzzy set,PFS),发展一种基于密切值的情景模糊多指标群体决策法。通过决策方案与理想点的密切程度实现对食品企业的质量信用评价与排序,同时应用所构造指标体系及其支撑的情景模糊评价方法对昆明市n 家软饮料企业进行质量信用评价,实例结果验证了该评价方法体系的可行性。%Scientific,objective and authoritative quality credit evaluation of food enterprises can not only provide consumers with the correct information,eliminate the worries,and ensure their life and health,but also provide decision -making reference for government departments to manage the food safety,prompt food enterpri-ses perfect internal control mechanism of production safety.Therefore,a quality credit classification evaluation index system of food enterprises is put forward,which is composed of four key essentials as quality credit willing, ability,performance,and quality sustainability.Then a new methodology of quality credit evaluation of food enter-prises based on the picture fuzzy sets theory,close -value method and group decision -making is proposed.Fi-nally,this methodology and evaluation index system is illustrated by an example,and the results show the practi-cability and validity of the evaluation system.

  7. Reward system and temporal pole contributions to affective evaluation during a first person shooter video game

    Directory of Open Access Journals (Sweden)

    Weber René

    2011-07-01

    Full Text Available Abstract Background Violent content in video games evokes many concerns but there is little research concerning its rewarding aspects. It was demonstrated that playing a video game leads to striatal dopamine release. It is unclear, however, which aspects of the game cause this reward system activation and if violent content contributes to it. We combined functional Magnetic Resonance Imaging (fMRI with individual affect measures to address the neuronal correlates of violence in a video game. Results Thirteen male German volunteers played a first-person shooter game (Tactical Ops: Assault on Terror during fMRI measurement. We defined success as eliminating opponents, and failure as being eliminated themselves. Affect was measured directly before and after game play using the Positive and Negative Affect Schedule (PANAS. Failure and success events evoked increased activity in visual cortex but only failure decreased activity in orbitofrontal cortex and caudate nucleus. A negative correlation between negative affect and responses to failure was evident in the right temporal pole (rTP. Conclusions The deactivation of the caudate nucleus during failure is in accordance with its role in reward-prediction error: it occurred whenever subject missed an expected reward (being eliminated rather than eliminating the opponent. We found no indication that violence events were directly rewarding for the players. We addressed subjective evaluations of affect change due to gameplay to study the reward system. Subjects reporting greater negative affect after playing the game had less rTP activity associated with failure. The rTP may therefore be involved in evaluating the failure events in a social context, to regulate the players' mood.

  8. Localization Services for Online Common Operational Picture and Situation Awareness

    OpenAIRE

    Björkbom, Mikael (editor); Timonen, Jussi; Yigitler, Huseyin; Kaltiokallio, Ossi; Garcia, Jose Vallet; Myrsky, Matthieu; Saarinen, Jari; Korkalainen, Marko; Cuhac, Caner; Jäntti, Riku; Virrankoski, Reino; Vankka, Jouko; Koivo, Heikki

    2013-01-01

    Many operations, be they military, police, rescue, or other field operations, require localization services and online situation awareness to make them effective. Questions such as how many people are inside a building and their locations are essential. In this paper, an online localization and situation awareness system is presented, called Mobile Urban Situation Awareness System (MUSAS), for gathering and maintaining localization information, to form a common operational picture. The MUSAS ...

  9. Automaton based detection of affected cells in three dimensional biological system

    CERN Document Server

    Dundas, Jitesh

    2011-01-01

    The aim of this research review is to propose the logic and search mechanism for the development of an artificially intelligent automaton (AIA) that can find affected cells in a 3-dimensional biological system. Research on the possible application of such automatons to detect and control cancer cells in the human body are greatly focused MRI and PET scans finds the affected regions at the tissue level even as we can find the affected regions at the cellular level using the framework. The AIA may be designed to ensure optimum utilization as they record and might control the presence of affected cells in a human body. The proposed models and techniques can be generalized and used in any application where cells are injured or affected by some disease or accident. The best method to import AIA into the body without surgery or injection is to insert small pill like automata, carrying material viz drugs or leukocytes that is needed to correct the infection. In this process, the AIA can be compared to nano pills to ...

  10. Pain modulation by intranasal oxytocin and emotional picture viewing — a randomized double-blind fMRI study

    Science.gov (United States)

    Zunhammer, Matthias; Geis, Sandra; Busch, Volker; Eichhammer, Peter; Greenlee, Mark W.

    2016-01-01

    The hormone oxytocin has been hypothesized to influence the emotional dimension of pain. This randomized, placebo-controlled, double-blind, crossover study explored whether intranasal oxytocin and emotional context can affect heat pain perception in 30 healthy male volunteers. After receiving 36 IU oxytocin or placebo, participants underwent functional Magnetic Resonance Imaging (fMRI) during which noxious and non-noxious thermode heat stimuli were applied. Simultaneously, scenes from the International Affective Pictures System (IAPS) with positive, neutral, and negative emotional valence were shown. Heat intensity and unpleasantness ratings were obtained. The activity of whole-brain correlates of heat processing was quantified via multi-voxel pattern analysis. We observed no appreciable main effects of oxytocin on ratings or neural pain correlates. Effects of emotional picture valence on ratings were smaller than reported in previous studies. Nevertheless, oxytocin was found to significantly enhance the influence of picture valence on unpleasantness ratings at noxious heat levels. No corresponding changes in whole-brain correlates of heat intensity processing were found. Our study provides evidence that intranasal oxytocin increases the effects of emotional context on the subjective unpleasantness of experimental heat pain. Future studies are needed to determine whether this effect can be utilized in clinical settings. PMID:27546446

  11. Pain modulation by intranasal oxytocin and emotional picture viewing - a randomized double-blind fMRI study.

    Science.gov (United States)

    Zunhammer, Matthias; Geis, Sandra; Busch, Volker; Eichhammer, Peter; Greenlee, Mark W

    2016-01-01

    The hormone oxytocin has been hypothesized to influence the emotional dimension of pain. This randomized, placebo-controlled, double-blind, crossover study explored whether intranasal oxytocin and emotional context can affect heat pain perception in 30 healthy male volunteers. After receiving 36 IU oxytocin or placebo, participants underwent functional Magnetic Resonance Imaging (fMRI) during which noxious and non-noxious thermode heat stimuli were applied. Simultaneously, scenes from the International Affective Pictures System (IAPS) with positive, neutral, and negative emotional valence were shown. Heat intensity and unpleasantness ratings were obtained. The activity of whole-brain correlates of heat processing was quantified via multi-voxel pattern analysis. We observed no appreciable main effects of oxytocin on ratings or neural pain correlates. Effects of emotional picture valence on ratings were smaller than reported in previous studies. Nevertheless, oxytocin was found to significantly enhance the influence of picture valence on unpleasantness ratings at noxious heat levels. No corresponding changes in whole-brain correlates of heat intensity processing were found. Our study provides evidence that intranasal oxytocin increases the effects of emotional context on the subjective unpleasantness of experimental heat pain. Future studies are needed to determine whether this effect can be utilized in clinical settings. PMID:27546446

  12. Analyzing Technical Limitations of Knowledge Management System that Affect User Dissatisfaction

    Directory of Open Access Journals (Sweden)

    Azadeh Faridi Aghdam

    2015-09-01

    Full Text Available In today’s knowledge based economy knowledge has become the most important competitive advantage of organizations. On the other hand, Information technology improves business values by playing an enabler role in knowledge management infrastructure. Many organizations to take advantage of the benefits of knowledge management systems have introduced, design and use KM systems as a systematic way of applying IT to KM. These systems help organizations to improve competitive power and efficiency in knowledge management. However, there are limitations in reaching these goals leading to failure to make full use of the potential benefits of these systems. Thus, this article studies limitations in these systems through an empirical survey. By reviewing literature, limitation factors divided into three categories: system quality limitations, knowledge quality limitations and service quality limitations. System quality limitations refer to the information processing system criteria. A questionnaire was developed and distributed among the users in several companies that implemented this system. Data were collected and analyzed based on 176 questionnaires related to structural modeling. Then in order to analyze the data, Warp PLS has been employed. The results show that knowledge Quality were statistically and service quality and system quality respectively the most significant factors that affects user dissatisfaction and there is a positive relationship between three limitations redounded to user dissatisfaction of the knowledge management systems.

  13. Brain activations to emotional pictures are differentially associated with valence and arousal ratings

    Directory of Open Access Journals (Sweden)

    Antje B M Gerdes

    2010-10-01

    Full Text Available Several studies have investigated the neural responses triggered by emotional pictures, but the specificity of the involved structures such as the amygdala or the ventral striatum is still under debate. Furthermore, only few studies examined the association of stimuli’s valence and arousal and the underlying brain responses. Therefore, we investigated brain responses with functional magnetic resonance imaging of 17 healthy subjects to pleasant and unpleasant affective pictures with comparable arousal levels and afterwards assessed ratings of valence and arousal. As expected, unpleasant pictures strongly activated the right and left amygdala, the right hippocampus, and the medial occipital lobe, whereas pleasant pictures elicited significant activations in left occipital regions, and in parts of the medial temporal lobe. The direct comparison of unpleasant and pleasant pictures which were comparable in arousal clearly indicated stronger amygdala activation in response to the unpleasant pictures. Most important, correlational analyses revealed on the one hand that the arousal of unpleasant pictures was significantly associated with activations in the right amygdala and the left caudate body. On the other hand, valence of pleasant pictures was significantly correlated with activations in the right caudate head, extending to the nucleus accumbens (NAcc and the left dorso-lateral prefrontal cortex. These findings support the notion that the amygdala is primarily involved in processing of unpleasant stimuli, and the stronger the more arousing the stimuli are, whereas reward-related structures like the NAcc primarily responds to pleasant stimuli, the stronger the more positive the valence of these stimuli is.

  14. Picture-object recognition in pigeons

    OpenAIRE

    Delius, Juan; Emmerton, Jacky; Hörster, Wolfgang; Jäger, Ralph; Ostheim, Joachim

    2000-01-01

    Photo-, computo-, and videographic pictures have been popular stimuli in experimental studies on the cognitive capacities of pigeons. Most authors have simply considered them as complex stimuli but some authors have talked about them as being natural stimuli. More popular accounts of these studies have mostly assumed that the pigeons were recognising the equivalencies between the pictures presented and the objects or scenes that were represented on them. We argue that this assumption may ofte...

  15. Two Comments on Predictive Picture Coding

    Institute of Scientific and Technical Information of China (English)

    1998-01-01

    Two comments on predictive picture coding are given in this paper. 1) In lossy coding, the reconstructed values of picture samples, not its original values, should be used in the prediction formula. 2) In the design of optimum predictors, the minimum entropy or subjective assessment or other criterions, could be used, depending on the applications of the prediction encoder, instead of the minimum mean square error (MMSE) criterion.

  16. Study of One Rainstorm Being Affected by Two Weather Systems in Jinzhou Area

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    [Objective] The aim was to study one rainstorm process being affected by two weather system. [Method] Influenced by high trough and Mongolia cold front, high latitude trough and subtropical high shear, rainstorm occurred in Jinzhou from October 19 to 22 in 2010. In order to make the analysis clear, there were two precipitation stages. Considering precipitation, weather situation, satellite image and numerical forecast, the rainstorm process was discussed. [Result] There were two raining stages during this p...

  17. Reward system and temporal pole contributions to affective evaluation during a first person shooter video game

    OpenAIRE

    Weber René; Klasen Martin; Mathiak Krystyna A; Ackermann Hermann; Shergill Sukhwinder S; Mathiak Klaus

    2011-01-01

    Abstract Background Violent content in video games evokes many concerns but there is little research concerning its rewarding aspects. It was demonstrated that playing a video game leads to striatal dopamine release. It is unclear, however, which aspects of the game cause this reward system activation and if violent content contributes to it. We combined functional Magnetic Resonance Imaging (fMRI) with individual affect measures to address the neuronal correlates of violence in a video game....

  18. On the Convergence of Affective and Persuasive Technologies in Computer-Mediated Health-Care Systems

    OpenAIRE

    García-Betances, Rebeca I.; Giuseppe Fico; Dario Salvi; Manuel Ottaviano; Arredondo, María T.

    2015-01-01

    This paper offers a portrayal of how affective computing and persuasive technologies can converge into an effective tool for interfacing biomedical engineering with behavioral sciences and medicine. We describe the characteristics, features, applications, present state of the art, perspectives, and trends of both streams of research. In particular, these streams are analyzed in light of the potential contribution of their convergence for improving computer-mediated health-care systems, b...

  19. Measuring the reliability of picture story exercises like the TAT.

    Directory of Open Access Journals (Sweden)

    Nicole Gruber

    Full Text Available As frequently reported, psychometric assessments on Picture Story Exercises, especially variations of the Thematic Apperception Test, mostly reveal inadequate scores for internal consistency. We demonstrate that the reason for this apparent shortcoming is not caused by the coding system itself but from the incorrect use of internal consistency coefficients, especially Cronbach's α. This problem could be eliminated by using the category-scores as items instead of the picture-scores. In addition to a theoretical explanation we prove mathematically why the use of category-scores produces an adequate internal consistency estimation and examine our idea empirically with the origin data set of the Thematic Apperception Test by Heckhausen and two additional data sets. We found generally higher values when using the category-scores as items instead of picture-scores. From an empirical and theoretical point of view, the estimated reliability is also superior to each category within a picture as item measuring. When comparing our suggestion with a multifaceted Rasch-model we provide evidence that our procedure better fits the underlying principles of PSE.

  20. Electrophysiological responses to affective stimuli in neglectful mothers.

    Science.gov (United States)

    León, Inmaculada; Rodrigo, María José; Quiñones, Ileana; Hernández, Juan Andrés; Lage, Agustín; Padrón, Iván; Bobes, María Antonieta

    2014-01-01

    Results illustrating an atypical neural processing in the early and late differentiation of infant faces have been obtained with neglectful mothers. The present study explores whether a different pattern of response is observed when using non-infant affective pictures. We examined the event-related evoked potentials and induced delta, theta and alpha activity in 14 neglectful mothers and 14 control mothers elicited while categorizing positive, negative and neutral pictures from the International Affective Picture System. Self-reports of anhedonia and empathy were also recorded. Early posterior negativity, P200 and late positive potential components were modulated by the emotional content of pictures in both groups. However, the LPP waveform had a more delayed and more attenuated maximum in neglectful mothers than in control mothers. Oscillatory responses indicated lower power increases for neglectful mothers than for control mothers in delta (1-4 Hz), theta (4-8 Hz) and lower alpha (8-10 Hz) bands at frontal sites, and a more consistent increase for neglectful mothers in theta and lower alpha bands at occipital sites, especially for negative pictures. These findings help us to better understand the limits of emotional insensitivity in neglectful mothers.

  1. Electrophysiological responses to affective stimuli in neglectful mothers.

    Directory of Open Access Journals (Sweden)

    Inmaculada León

    Full Text Available Results illustrating an atypical neural processing in the early and late differentiation of infant faces have been obtained with neglectful mothers. The present study explores whether a different pattern of response is observed when using non-infant affective pictures. We examined the event-related evoked potentials and induced delta, theta and alpha activity in 14 neglectful mothers and 14 control mothers elicited while categorizing positive, negative and neutral pictures from the International Affective Picture System. Self-reports of anhedonia and empathy were also recorded. Early posterior negativity, P200 and late positive potential components were modulated by the emotional content of pictures in both groups. However, the LPP waveform had a more delayed and more attenuated maximum in neglectful mothers than in control mothers. Oscillatory responses indicated lower power increases for neglectful mothers than for control mothers in delta (1-4 Hz, theta (4-8 Hz and lower alpha (8-10 Hz bands at frontal sites, and a more consistent increase for neglectful mothers in theta and lower alpha bands at occipital sites, especially for negative pictures. These findings help us to better understand the limits of emotional insensitivity in neglectful mothers.

  2. Designing Effective Persuasive Systems Utilizing the Power of Entanglement: Communication Channel, Strategy and Affect

    Science.gov (United States)

    Li, Haiqing; Chatterjee, Samir

    With rapid advances in information and communication technology, computer-mediated communication (CMC) technologies are utilizing multiple IT platforms such as email, websites, cell-phones/PDAs, social networking sites, and gaming environments. However, no studies have compared the effectiveness of a persuasive system using such alternative channels and various persuasive techniques. Moreover, how affective computing impacts the effectiveness of persuasive systems is not clear. This study proposes (1) persuasive technology channels in combination with persuasive strategies will have different persuasive effectiveness; (2) Adding positive emotion to a message that leads to a better overall user experience could increase persuasive effectiveness. The affective computing or emotion information was added to the experiment using emoticons. The initial results of a pilot study show that computer-mediated communication channels along with various persuasive strategies can affect the persuasive effectiveness to varying degrees. These results also shows that adding a positive emoticon to a message leads to a better user experience which increases the overall persuasive effectiveness of a system.

  3. The effect of selective REM-sleep deprivation on the consolidation and affective evaluation of emotional memories.

    Science.gov (United States)

    Wiesner, Christian D; Pulst, Julika; Krause, Fanny; Elsner, Marike; Baving, Lioba; Pedersen, Anya; Prehn-Kristensen, Alexander; Göder, Robert

    2015-07-01

    Emotion boosts the consolidation of events in the declarative memory system. Rapid eye movement (REM) sleep is believed to foster the memory consolidation of emotional events. On the other hand, REM sleep is assumed to reduce the emotional tone of the memory. Here, we investigated the effect of selective REM-sleep deprivation, SWS deprivation, or wake on the affective evaluation and consolidation of emotional and neutral pictures. Prior to an 9-h retention interval, sixty-two healthy participants (23.5 ± 2.5 years, 32 female, 30 male) learned and rated their affect to 80 neutral and 80 emotionally negative pictures. Despite rigorous deprivation of REM sleep or SWS, the residual sleep fostered the consolidation of neutral and negative pictures. Furthermore, emotional arousal helped to memorize the pictures. The better consolidation of negative pictures compared to neutral ones was most pronounced in the SWS-deprived group where a normal amount of REM sleep was present. This emotional memory bias correlated with REM sleep only in the SWS-deprived group. Furthermore, emotional arousal to the pictures decreased over time, but neither sleep nor wake had any differential effect. Neither the comparison of the affective ratings (arousal, valence) during encoding and recognition, nor the affective ratings of the recognized targets and rejected distractors supported the hypothesis that REM sleep dampens the emotional reaction to remembered stimuli. The data suggest that REM sleep fosters the consolidation of emotional memories but has no effect on the affective evaluation of the remembered contents.

  4. Digital Picture Production and Picture aesthetic Competency in It-didactic Design

    DEFF Research Database (Denmark)

    Rasmussen, Helle

    In my presentation at the InSEA Conference 2015 I want to introduce my ongoing Ph.D. project with the title ‘Digital Picture Production and Picture aesthetic Competency in It-didactic Design’. The objective of the project is to provide a basis for upgrading and renewal of lessons in the school...... subject Visual Arts – and crosswise of subjects in school. The overall research question has been: How can IT-didactic designs support lessons in production of complex meaning in digital pictures and increase the development of pupil’s picture aesthetic competences? By using the expression ‘complex...... potential in digital picture productions will tend to be distinctly complex, such as also Mie Buhl has pointed with reference to Paul Duncum. (Buhl 2005, Duncum 2014). To handle production of such distinctly complex meaning in digital pictures seems to be a didactic challenge in school. It also seems like...

  5. Developments in Indexing Picture Collections.

    Science.gov (United States)

    Cawkell, A. E.

    1993-01-01

    Discussion of electronic image processing focuses on the need for indexing to ensure adequate retrieval. Highlights include icons, i.e., reduced pictorial surrogates; file staging; indexing languages, including examples of thesauri; and pictorial languages, including a HyperCard system. (Contains eight references.) (LRW)

  6. Assessment of economic factors affecting the satellite power system. Volume 1: System cost factors

    Science.gov (United States)

    Hazelrigg, G. A., Jr.

    1978-01-01

    The factors relevant to SPS costing and selection of preferred SPS satellite configurations were studied. The issues discussed are: (1) consideration of economic factors in the SPS system that relate to selection of SPS satellite configuration; (2) analysis of the proper rate of interest for use in SPS system definition studies; and (3) the impacts of differential inflation on SPS system definition costing procedures. A cost-risk comparison of the SPS satellite configurations showed a significant difference in the levelized cost of power from them. It is concluded, that this difference is the result more of differences in the procedures for assessing costs rather than in the satellite technologies required or of any advantages of one satellite configuration over the other. Analysis of the proper rate of interest for use in SPS system is 4 percent. The major item of differential inflation to be expected over this period of time is the real cost of labor. This cost is likely to double between today and the period of SPS construction.

  7. Differentiation of affective and denotative meaning systems and their influence in personality ratings.

    Science.gov (United States)

    Tzeng, O C

    1975-12-01

    The present study presents an empirical example of the dichotomy of affective and denotative meaning systems and their influence on individual differences in personality ratings. The three-mode factor analytic technique with a newly developed transformation methodology for the scale mode was applied to data collected by Hogenraad from 50 French-speaking Belgians, rating 40 personality concepts against 40 semantic differential scales. Results indicated that three affective dimensions (evaluation, potency, and activity) proved to be dominant in the indigenous factor structure of personality impressions and that three dimensions in the "other" space, orthogonal to affect, are clearly interpretable denotative semantic features of personalities. Three idealized individual differences on interactions of these two meaning systems with four concept factors were highlighted by the final rotated inner core matrix. The present methodology along with the semantic differential technique and three-mode factor analysis can be applied to various types of subjects and/or concept domains for better understanding of intra- and intercultural differences. PMID:1214218

  8. Reconstructing pictures from sampled data

    International Nuclear Information System (INIS)

    Corrections for two important degrading effects in gamma ray imaging systems are described. The adaptive local operator has the advantage that given the assumptions of the method the optimum correction is made for both sources of error simultaneously. The probability operator method although less soundly based in classical signal processing theory does make more use of the known statistical properties of possible inputs and consequently might make a better estimate of the true sample values. A separate correction would need to be made for blurring effects. The initial results indicate that the methods are worthy of further investigation

  9. Advancing the Assessment of Personality Pathology With the Cognitive-Affective Processing System.

    Science.gov (United States)

    Huprich, Steven K; Nelson, Sharon M

    2015-01-01

    The Cognitive-Affective Processing System (CAPS) is a dynamic and expansive model of personality proposed by Mischel and Shoda (1995) that incorporates dispositional and processing frameworks by considering the interaction of the individual and the situation, and the patterns of variation that result. These patterns of cognition, affect, and behavior are generally defined through the use of if … then statements, and provide a rich understanding of the individual across varying levels of assessment. In this article, we describe the CAPS model and articulate ways in which it can be applied to conceptualizing and assessing personality pathology. We suggest that the CAPS model is an ideal framework that integrates a number of current theories of personality pathology, and simultaneously overcomes a number of limits that have been empirically identified in the past.

  10. Advancing the Assessment of Personality Pathology With the Cognitive-Affective Processing System.

    Science.gov (United States)

    Huprich, Steven K; Nelson, Sharon M

    2015-01-01

    The Cognitive-Affective Processing System (CAPS) is a dynamic and expansive model of personality proposed by Mischel and Shoda (1995) that incorporates dispositional and processing frameworks by considering the interaction of the individual and the situation, and the patterns of variation that result. These patterns of cognition, affect, and behavior are generally defined through the use of if … then statements, and provide a rich understanding of the individual across varying levels of assessment. In this article, we describe the CAPS model and articulate ways in which it can be applied to conceptualizing and assessing personality pathology. We suggest that the CAPS model is an ideal framework that integrates a number of current theories of personality pathology, and simultaneously overcomes a number of limits that have been empirically identified in the past. PMID:26214351

  11. Visualizing common operating picture of critical infrastructure

    Science.gov (United States)

    Rummukainen, Lauri; Oksama, Lauri; Timonen, Jussi; Vankka, Jouko

    2014-05-01

    This paper presents a solution for visualizing the common operating picture (COP) of the critical infrastructure (CI). The purpose is to improve the situational awareness (SA) of the strategic-level actor and the source system operator in order to support decision making. The information is obtained through the Situational Awareness of Critical Infrastructure and Networks (SACIN) framework. The system consists of an agent-based solution for gathering, storing, and analyzing the information, and a user interface (UI) is presented in this paper. The UI consists of multiple views visualizing information from the CI in different ways. Different CI actors are categorized in 11 separate sectors, and events are used to present meaningful incidents. Past and current states, together with geographical distribution and logical dependencies, are presented to the user. The current states are visualized as segmented circles to represent event categories. Geographical distribution of assets is displayed with a well-known map tool. Logical dependencies are presented in a simple directed graph, and users also have a timeline to review past events. The objective of the UI is to provide an easily understandable overview of the CI status. Therefore, testing methods, such as a walkthrough, an informal walkthrough, and the Situation Awareness Global Assessment Technique (SAGAT), were used in the evaluation of the UI. Results showed that users were able to obtain an understanding of the current state of CI, and the usability of the UI was rated as good. In particular, the designated display for the CI overview and the timeline were found to be efficient.

  12. Quantum-like picture for intrinsic, classical, arrival distributions

    Energy Technology Data Exchange (ETDEWEB)

    Torres-Vega, Gabino [Physics Department, Cinvestav, Apdo. postal 14-740, 07000 Mexico D.F. (Mexico)], E-mail: gabino@fis.cinvestav.mx

    2009-11-20

    We introduce a marginal, quantum-like picture for the arrival of classical quantities in which the representation vectors are the quantities that evolve and probability densities remain static. The representation functions can be seen as probe functions which are the evolution of delta functions with support on a curve in phase space, the time fronts. This procedure provides a classical analog as well as a clear physical interpretation of the 'time eigenstates' used in quantum systems.

  13. Mating system affects population performance and extinction risk under environmental challenge.

    Science.gov (United States)

    Plesnar-Bielak, Agata; Skrzynecka, Anna M; Prokop, Zofia M; Radwan, Jacek

    2012-11-22

    Failure of organisms to adapt to sudden environmental changes may lead to extinction. The type of mating system, by affecting fertility and the strength of sexual selection, may have a major impact on a population's chances to adapt and survive. Here, we use experimental evolution in bulb mites (Rhizoglyphus robini) to examine the effects of the mating system on population performance under environmental change. We demonstrate that populations in which monogamy was enforced suffered a dramatic fitness decline when evolving at an increased temperature, whereas the negative effects of change in a thermal environment were alleviated in polygamous populations. Strikingly, within 17 generations, all monogamous populations experiencing higher temperature went extinct, whereas all polygamous populations survived. Our results show that the mating system may have dramatic effects on the risk of extinction under environmental change.

  14. An Investigation of Factors Affecting Elementary School Students’ BMI Values Based on the System Dynamics Modeling

    Directory of Open Access Journals (Sweden)

    Tian-Syung Lan

    2014-01-01

    Full Text Available This study used system dynamics method to investigate the factors affecting elementary school students’ BMI values. The construction of the dynamic model is divided into the qualitative causal loop and the quantitative system dynamics modeling. According to the system dynamics modeling, this study consisted of research on the four dimensions: student’s personal life style, diet-relevant parenting behaviors, advocacy and implementation of school nutrition education, and students’ peer interaction. The results of this study showed that students with more adequate health concepts usually have better eating behaviors and consequently have less chance of becoming obese. In addition, this study also verified that educational attainment and socioeconomic status of parents have a positive correlation with students’ amounts of physical activity, and nutrition education has a prominent influence on changing students’ high-calorie diets.

  15. An investigation of factors affecting elementary school students' BMI values based on the system dynamics modeling.

    Science.gov (United States)

    Lan, Tian-Syung; Chen, Kai-Ling; Chen, Pin-Chang; Ku, Chao-Tai; Chiu, Pei-Hsuan; Wang, Meng-Hsiang

    2014-01-01

    This study used system dynamics method to investigate the factors affecting elementary school students' BMI values. The construction of the dynamic model is divided into the qualitative causal loop and the quantitative system dynamics modeling. According to the system dynamics modeling, this study consisted of research on the four dimensions: student's personal life style, diet-relevant parenting behaviors, advocacy and implementation of school nutrition education, and students' peer interaction. The results of this study showed that students with more adequate health concepts usually have better eating behaviors and consequently have less chance of becoming obese. In addition, this study also verified that educational attainment and socioeconomic status of parents have a positive correlation with students' amounts of physical activity, and nutrition education has a prominent influence on changing students' high-calorie diets. PMID:24701250

  16. Susceptibility of South Korea to hydrologic extremes affecting the global food system

    Science.gov (United States)

    Puma, M. J.; Chon, S. Y.

    2015-12-01

    Food security in South Korea is closely linked to trade in the global food system. The country's production of major grains declined from 5.8 million metric tons (mmt) in 1998 to 4.8 mmt in 2014, which coincided with a shift in grain self sufficiency from 43% down to 24% over this same period. Many factors led to these changes, including reductions in domestic agricultural land, governmental policies supporting industry over agriculture, and a push towards trade liberalization. South Korea's self sufficiency is now one of the lowest among Organisation for Economic Co-operation and Development (OECD) countries, leaving it vulnerable to disruptions in the global food system. Here we explore this vulnerability by assessing how global trade disruptions would affect Korea's food security. We impose historical extreme drought and flood events that would possibly affect today's major food producing regions concurrently. Next we compute food supply deficits in South Korea that might result from these events. Our analyses provide a framework for formulating domestic food policies to enhance South Korea's food security in the increasingly fragile global food system.

  17. PixMail: Pictures through mail

    Science.gov (United States)

    Blattner, Meera; Sierra, Francisco; Prassinos, Peter

    1989-02-01

    PixMail is a set of procedures for sending pictures through internet mail. The pictures can be sent or received by personal computers, terminals with or without raster capability, and facsimile machines. Optical scanners may be used as input to the picture file and printers may be used as an output device once the raster file is stored in a form used by a paint editor. No additional equipment needs to be purchased by the users to send or receive PixMail (unless facsimile input/output is desired) and it is no more difficult to send or receive than ordinary UNIX mail. PixMail uses the protocols of existing electronic mail for transmission from any ARPAnet or MILnet user to any other.

  18. Cosmic Inflation from Emergent Spacetime Picture

    CERN Document Server

    Yang, Hyun Seok

    2016-01-01

    We argue that the emergent spacetime picture admits a background-independent formulation of cosmic inflation. The inflation in this picture corresponds to the dynamical emergence of spacetime while the conventional inflation is simply an (exponential) expansion of a preexisting spacetime owing to the vacuum energy carried by an inflaton field. We show that the cosmic inflation arises as a time-dependent solution of the matrix quantum mechanics describing the dynamical process of Planck energy condensate in vacuum without introducing any inflaton field as well as an {\\it ad hoc} inflation potential. Thus the emergent spacetime picture realizes a background-independent description of the inflationary universe which has a sufficiently elegant and explanatory power to defend the integrity of physics against the multiverse hypothesis.

  19. Do Natural Pictures Mean Natural Tastes?

    DEFF Research Database (Denmark)

    Smith, Viktor; Barratt, Daniel; Sørensen, Henrik Selsøe

    2015-01-01

    A widespread assumption in Danish consumer law is that if the package of a food product carries a picture of a potentially taste-giving ingredient (say, a strawberry), then consumers will expect the corresponding taste to stem primarily from that ingredient rather than from artificial flavouring....... However, this is not expected to be the case if the packaging carries only a verbal indication of the potential ingredient (say, the word strawberry). We put these assumptions to experimental test. Our goal was to contribute firmer evidence to the legal decision-making in the present field while...... at the same time providing new perspectives and data to the general theoretical debate on the communicative potential of pictures versus words. Our findings showed that pictures did have an effect on assessments of naturalness that was however marginal compared to that of product type. Moreover, participants...

  20. Effect of Picture Exchange Communication System on Children with Autism%图片交换沟通系统在儿童孤独症康复护理中的应用

    Institute of Scientific and Technical Information of China (English)

    孔祥颖; 宋福祥; 历虹; 许洪伟; 王亚男; 刘洋

    2014-01-01

    目的:探讨图片交换沟通系统(PECS)在儿童孤独症康复护理中的应用效果。方法孤独症患儿40例随机分为观察组(n=20)和对照组(n=20)。对照组接受常规护理,观察组在常规护理的基础上给予以PECS为指导的康复护理。治疗前、治疗6个月后使用心理教育量表(PEP-3)进行评估。结果两组患儿治疗6个月后,与各自治疗前相比PEP-3评分均有提高(P<0.05);治疗后观察组沟通与行为评分高于对照组(P<0.05)。结论采取PECS指导的康复护理措施能够有效改善孤独症患儿社交功能和语言功能。%Objective To observe the efficacy of Picture Exchange Communication System (PECS) on children with autism applied in rehabilitation nursing care. Methods 40 children with autism were divided randomly into two groups. The control group (n=20) received routine nursing care, and the observation group (n=20) received rehabilitation nursing care based on PECS for 6 months. They were assessed with Psycho-Education Profile (PEP-3) before and after training. Results The scores of PEP-3 improved obviously in all the children (P<0.05) after training, and the score of communication and behaviour improved more in the observation group than in the control group (P<0.05). Conclusion PECS applied in rehabilitation nursing care can improve the sociality and speech for children with autism.

  1. Is a Picture Is Worth a Thousand Words? Creating Effective Questionnaires with Pictures

    Science.gov (United States)

    Reynolds-Keefer, Laura; Johnson, Robert

    2011-01-01

    In developing attitudinal instruments for young children, researchers, program evaluators, and clinicians often use response scales with pictures or images (e.g., smiley faces) as anchors. This article considers connections between word-based and picture based Likert scales and highlights the value in translating conventions used in word-based…

  2. Grass-clover undersowing affects nitrogen dynamics in a grain legume–cereal arable cropping system

    DEFF Research Database (Denmark)

    Hauggaard-Nielsen, Henrik; Mundus, Simon; Jensen, Erik Steen

    2012-01-01

    A field experiment was carried out in an arable organic cropping system and included a sequence with sole cropped fababean (Vicia faba L.), lupin (Lupinus angustifolius L.), pea (Pisum sativum L.), oat (Avena sativa L.) and pea–oat intercropping with or without an undersown perennial ryegrass...... N2 fixation and 15N labeling technique to determine the fate of pea and oat residue N recovery in the subsequent crop. The subsequent spring wheat and winter triticale crop yields were not significantly affected by the previous main crop, but a significant effect of catch crop undersowing...

  3. Failure to detect meaning in RSVP at 27 ms per picture.

    Science.gov (United States)

    Maguire, John F; Howe, Piers D L

    2016-07-01

    The human visual system has the remarkable ability to rapidly detect meaning from visual stimuli. Potter, Wyble, Hagmann, and McCourt (Attention, Perception, & Psychophysics, 76, 270-279, 2014) tested the minimum viewing time required to obtain meaning from a stream of pictures shown in a rapid serial visual presentation (RSVP) sequence containing either six or 12 pictures. They reported that observers could detect the presence of a target picture specified by name (e.g., smiling couple) even when the pictures in the sequence were presented for just 13 ms each. Potter et al. claimed that this was insufficient time for feedback processing to occur, so feedforward processing alone must be able to generate conscious awareness of the target pictures. A potential confound in their study is that the pictures in the RSVP sequence sometime contained areas with no high-contrast edges, and so may not have adequately masked each other. Consequently, iconic memories of portions of the target pictures may have persisted in the visual system, thereby increasing the effective presentation time. Our study addressed this issue by redoing the Potter et al. study, but using four different types of masks. We found that when adequate masking was used, no evidence emerged that observers could detect the presence of a specific target picture, even when each picture in the RSVP sequence was presented for 27 ms. On the basis of these findings, we cannot rule out the possibility that feedback processing is necessary for individual pictures to be recognized. PMID:27048442

  4. Spatial Vegetation Data for Pictured Rocks National Lakeshore Vegetation Mapping Project

    Data.gov (United States)

    National Park Service, Department of the Interior — The geographic information system (GIS) format spatial data set of vegetation for Pictured Rocks National Lakeshore (PIRO) was created by the National Park Service...

  5. Tracking social motivation systems deficits: the affective neuroscience view of autism.

    Science.gov (United States)

    Carré, Arnaud; Chevallier, Coralie; Robel, Laurence; Barry, Caroline; Maria, Anne-Solène; Pouga, Lydia; Philippe, Anne; Pinabel, François; Berthoz, Sylvie

    2015-10-01

    Abnormal functioning of primary brain systems that express and modulate basic emotional drives are increasingly considered to underlie mental disorders including autism spectrum disorders. We hypothesized that ASD are characterized by disruptions in the primary systems involved in the motivation for social bonding. Twenty adults with ASD were compared to 20 neurotypical participants on the basis of self-reports and clinical assessments, including the Social Anhedonia Scale (SAS) and the Affective Neuroscience Personality Scales (ANPS). ASD diagnosis was related to SAS, as well as to positive (PLAYFULNESS) and negative (FEAR) ANPS-traits. In the overall sample, levels of autistic traits (AQ) were related to SAS and PLAYFULNESS. We argue that PLAYFULNESS could be at the root of social bonding impairments in ASD.

  6. Financial crisis. How it affects the public health and health systems

    Directory of Open Access Journals (Sweden)

    Pavlos Sarafis

    2012-04-01

    Full Text Available Aim: The economic situation affects health indicators like life expectancy, morbidity, mortality and access to health services. Methodology: Α research in bibliography was done in Pubmed, Scopus, Sciverse with key words: health, health systems, economic crisis, unemployment, poverty. Results: Unemployment is also associated with increased daily alcohol consumption, suicides increase, domestic violence, and it reduces road deaths at 1.4%. In particular, poverty leads to disease as people are forced to live in degraded environment, fed poorly and work in dangerous and unhealthy environments. Conclusions: In particular, the economic crisis is leading to job insecurity, unemployment and poverty that eventually lead to the exclusion of more people something that is responsible for various mental disorders. Health systems on the other hand in crisis are facing financial problems because of reduced government spending on health due to economic scarcity and because of disruption of foreign economic aid from richer countries, which cover a large part of health funding.

  7. Research into human factors affecting the railway system; Studien zu menschlichen Einflussfaktoren im Eisenbahnsystem

    Energy Technology Data Exchange (ETDEWEB)

    Hammerl, Malte; Feldmann, Frederike; Rumke, Axel; Pelz, Markus [DLR e.V., Braunschweig (Germany). Inst. fuer Verkehrssystemtechnik

    2010-07-01

    The Institute for Transportation Systems (ITS) at the German Aerospace Center DLR in Braunschweig has for many years been conducting research into current and future topics relating to railway transportation. Supplementing the in-house technical infrastructure including e.g. RailSiTe {sup registered} (Rail Simulation and Testing) and RailDriVE {sup registered} (Rail Driving Validation Environment), a new test environment for Rail Human Factors Research has been established to investigate such factors as they affect locomotive drivers. The aim is to analyse current issues and new concepts regarding human-machine interaction and test them under conditions that are as true-to-life as possible without exposure to real-life safety-critical situations. The test environment allows for investigation across the spectrum, starting with workplace analysis and going on from potential modifications to existing user interfaces through to the analysis of prototype assistance systems. (orig.)

  8. Laying performance and egg quality of blue-shelled layers as affected by different housing systems.

    Science.gov (United States)

    Wang, X L; Zheng, J X; Ning, Z H; Qu, L J; Xu, G Y; Yang, N

    2009-07-01

    Blue-shelled eggs are gaining popularity as the consumption demand diversifies in some countries. This study was carried out to investigate the laying performance and egg quality of the blue-shelled egg layers as well as the effects of different housing systems on egg production and quality traits. One thousand pullets from Dongxiang blue-shelled layers were divided into 2 even groups and kept in different housing systems (outdoor vs. cage). Daily laying performance was recorded from 20 to 60 wk of age. External and internal egg quality traits were examined at 26, 34, 42, and 50 wk. Yolk cholesterol concentration and whole egg cholesterol content were measured at 40 wk of age. Average laying rate from 20 to 60 wk for the cage (54.7%) was significantly higher than that of outdoor layers (39.3%). Among all of the egg quality traits, only eggshell color was affected by housing system. Interaction between housing system and layer age was found in egg weight, eggshell color, eggshell ratio, yolk color, and yolk weight. Meanwhile, cholesterol concentration in yolk was 8.64 +/- 0.40 mg/g in the outdoor eggs, which was significantly lower than that of eggs from the cage birds (10.32 +/- 0.48 mg/g; P marketing system, lower productivity could be balanced by a higher price for the better quality of blue-shelled eggs. PMID:19531721

  9. Immunofluorescence in multiple tissues utilizing serum from a patient affected by systemic lupus erythematosus

    Directory of Open Access Journals (Sweden)

    Piotr Brzezinski

    2012-01-01

    Full Text Available Introduction: Lupus erythematosus is a chronic, inflammatory autoimmune disease that can affect multiple organs. Lupus can affect many parts of the body, especially in systemic lupus erythematosus (SLE; affected tissues may include the joints, skin, kidneys, heart, lungs, blood vessels, and brain. Case report: A 46-year-old female presented with pruritus, photosensitivity and edema of the cheeks of about 2 years duration, and was evaluated by a dermatologist. On examination, multiple telangiectasias were present on the cheeks, with erythema, edema and a malar rash observed. A review of systems documented breathing difficulty and pleuitic pain, joint pain and joint edema, photosensitivity, cardiac dysrhythmia, and periodic pain in the back close to the kidneys. Methods: Skin biopsies for hematoxylin and eosin testing, as well for direct and indirect immunofluorescence were performed, in addition to multiple diagnostic blood tests, chest radiography and directed immunologic testing. Results: The blood testing showed elevated C-reactive protein. Direct and indirect immunofluorescence testing utilizing monkey esophagus, mouse and pig heart and kidney, normal human eyelid skin and veal brain demonstrated strong reactivity to several components of smooth muscle, nerves, blood vessels, skin basement membrane zone and sweat gland ducts and skin meibomian glands. Anti-endomysium antibodies were detected as well as others, especially using FITC conjugated Complement/C1q, FITC conjugated anti-human immunoglobulin IgG and FITC conjugated anti-human fibrinogen. Conclusions: We conclude that both direct and indirect immunofluorescence using several substrates can unveil previously undocumented autoantibodies in multiple organs in lupus erythematosus, and that these findings could be utilized to complement existing diagnostic testing for this disorder.

  10. The Support System in Distance Education:Factors Affecting Achievements Among Women Learners

    Directory of Open Access Journals (Sweden)

    Rozhan M IDRUS

    2005-10-01

    Full Text Available The Support System in Distance Education:Factors Affecting Achievements Among Women Learners Hanafi ATAN Zuraidah A. RAHMAN Omar MAJID Noraida A. GHANIRozhan M IDRUS School of Distance EducationUniversiti Sains Malaysia11800 Penang, MALAYSIA ABSTRACT Distance education has the potential to contribute to the enhancement of women’s development by overcoming not only temporal and spatial barriers but familial commitments as well. It brings education to their home and allows women to learn at their individual pace, seek skills for individual development and at the same time, enables them to fulfill family responsibilities. An important element of distance education is the provision of the learner support system that provides students the access to learning resources and means of communication that would facilitate the array of educational activities and exposure to various other guidance and advisories. This paper reports on the study undertaken to elucidate the dimensions of the support system provided by the School of Distance Education (SDE, Universiti Sains Malaysia (USM to its women learners that would have significant impact on their achievements. The factorial analysis conducted revealed that the role of the faculty is the main contributing factor affecting these achievements, followed by the provision of the intensive course, the electronic portal, video conferencing and to a much lesser extent, the existence of the regional centres. The implications of this study are discussed with the view of improving the support system provided by the institution and the need to put into action the necessary strategies to further improve the achievement of the women learners.

  11. Implicit and explicit attention to pictures and words: An fMRI-study of concurrent emotional stimulus processing

    Directory of Open Access Journals (Sweden)

    Tobias eFlaisch

    2015-12-01

    Full Text Available The present study utilized functional magnetic resonance imaging (fMRI to examine the neural processing of concurrently presented emotional stimuli under varying explicit and implicit attention demands. Specifically, in separate trials, participants indicated the category of either pictures or words. The words were placed over the center of the pictures and the picture-word compound-stimuli were presented for 1500 ms in a rapid event-related design. The results reveal pronounced main effects of task and emotion: the picture categorization task prompted strong activations in visual, parietal, temporal, frontal, and subcortical regions; the word categorization task evoked increased activation only in left extrastriate cortex. Furthermore, beyond replicating key findings regarding emotional picture and word processing, the results point to a dissociation of semantic-affective and sensory-perceptual processes for words: while emotional words engaged semantic-affective networks of the left hemisphere regardless of task, the increased activity in left extrastriate cortex associated with explicitly attending to words was diminished when the word was overlaid over an erotic image. Finally, we observed a significant interaction between Picture Category and Task within dorsal visual-associative regions, inferior parietal, and dorsolateral and medial prefrontal cortices: during the word categorization task, activation was increased in these regions when the words were overlaid over erotic as compared to romantic pictures. During the picture categorization task, activity in these areas was relatively decreased when categorizing erotic as compared to romantic pictures. Thus, the emotional intensity of the pictures strongly affected brain regions devoted to the control of task-related word or picture processing. These findings are discussed with respect to the interplay of obligatory stimulus processing with task-related attentional control mechanisms.

  12. Implicit and Explicit Attention to Pictures and Words: An fMRI-Study of Concurrent Emotional Stimulus Processing.

    Science.gov (United States)

    Flaisch, Tobias; Imhof, Martin; Schmälzle, Ralf; Wentz, Klaus-Ulrich; Ibach, Bernd; Schupp, Harald T

    2015-01-01

    The present study utilized functional magnetic resonance imaging (fMRI) to examine the neural processing of concurrently presented emotional stimuli under varying explicit and implicit attention demands. Specifically, in separate trials, participants indicated the category of either pictures or words. The words were placed over the center of the pictures and the picture-word compound-stimuli were presented for 1500 ms in a rapid event-related design. The results reveal pronounced main effects of task and emotion: the picture categorization task prompted strong activations in visual, parietal, temporal, frontal, and subcortical regions; the word categorization task evoked increased activation only in left extrastriate cortex. Furthermore, beyond replicating key findings regarding emotional picture and word processing, the results point to a dissociation of semantic-affective and sensory-perceptual processes for words: while emotional words engaged semantic-affective networks of the left hemisphere regardless of task, the increased activity in left extrastriate cortex associated with explicitly attending to words was diminished when the word was overlaid over an erotic image. Finally, we observed a significant interaction between Picture Category and Task within dorsal visual-associative regions, inferior parietal, and dorsolateral, and medial prefrontal cortices: during the word categorization task, activation was increased in these regions when the words were overlaid over erotic as compared to romantic pictures. During the picture categorization task, activity in these areas was relatively decreased when categorizing erotic as compared to romantic pictures. Thus, the emotional intensity of the pictures strongly affected brain regions devoted to the control of task-related word or picture processing. These findings are discussed with respect to the interplay of obligatory stimulus processing with task-related attentional control mechanisms. PMID:26733895

  13. Name agreement in picture naming : An ERP study

    NARCIS (Netherlands)

    Cheng, Xiaorong; Schafer, Graham; Akyürek, Elkan G.

    2010-01-01

    Name agreement is the extent to which different people agree on a name for a particular picture. Previous studies have found that it takes longer to name low name agreement pictures than high name agreement pictures. To examine the effect of name agreement in the online process of picture naming, we

  14. Lynch syndrome: still not a familiar picture

    OpenAIRE

    Hes Frederik J

    2008-01-01

    Abstract Background Germ line mutations in mismatch repair genes underlie Lynch syndrome and predispose carriers for colorectal carcinoma and malignancies in many other organ systems. Case presentation A large Lynch syndrome family with 15 affected family members and involvement in 7 organs is reported. It illustrates a lack of awareness and knowledge about this hereditary tumor syndrome among doctors as well as patients. None of the described family members underwent presymptomatic screening...

  15. Young Children, National Tragedy, and Picture Books.

    Science.gov (United States)

    McMath, Joan S.

    1997-01-01

    Suggests that, rather than exposing young children to media coverage of national tragedies and disasters, caregivers should read aloud to children from picture books that convey stability, calmness, and reassurance. Includes tips for helping children cope with tragedy, guidelines for selecting books, and an annotated list of 25 books that can help…

  16. Development of a Rich Picture editor

    DEFF Research Database (Denmark)

    Valente, Andrea; Marchetti, Emanuela

    2010-01-01

    rich picture practice into software proved difficult, therefore, we decided to follow a user-centered approach: design and implement a prototype with basic functionalities, then run a usability test with a few students and professionals. The feedback collected in the test validated our hypothesis circa...

  17. The Work of the Motion Picture Cameraman.

    Science.gov (United States)

    Young, Freddie; Petzold, Paul

    Meant to serve as an authoritative source of information on camera work in large scale feature productions, this book attempts to give some basic understanding of the problems of motion picture photography, the working conditions and artistry of lighting for mood and dramatic effect, budget problems for making films, and facts about working with a…

  18. Princess Picture Books: Content and Messages

    Science.gov (United States)

    Dale, Lourdes P.; Higgins, Brittany E.; Pinkerton, Nick; Couto, Michelle; Mansolillo, Victoria; Weisinger, Nica; Flores, Marci

    2016-01-01

    Because many girls develop their understanding of what it means to be a girl from books about princesses, the researchers coded the messages and content in 58 princess books (picture, fairy tales, and fractured fairy tales). Results indicate that gender stereotypes are present in the books--the princesses were more likely to be nurturing, in…

  19. The Last Great American Picture Show

    NARCIS (Netherlands)

    Elsaesser, Thomas; King, Noel; Horwath, Alexander

    2004-01-01

    The Last Great American Picture Show brings together essays by scholars and writers who chart the changing evaluations of the American cinema of the 1970s, sometimes referred to as the decade of the lost generation, but now more and more recognized as the first New Hollywood, without which the cinem

  20. A Picture Is Worth a Thousand Questions

    Science.gov (United States)

    Ribisi, Stephen, Jr.; Yu, Kristina; Lambertson, Lori

    2007-01-01

    The old adage that a picture is worth a thousand words also holds true in cell biology. Much of the knowledge that we have of the structures and functions of cells has been acquired by biologists peering through the eyepieces of microscopes. The point of this lesson is to provide an opportunity for students to observe cell biological data while…

  1. Bilingual Picture Books: Libros Para Todos.

    Science.gov (United States)

    Agosto, Denise

    1997-01-01

    Discusses the importance of including bilingual English/Spanish picture books in library collections, introduces some recent titles, and describes some programming ideas. Topics include second language study, children teaching English to Spanish-speaking parents, cultural studies, and bilingual presentations. (LRW)

  2. Learning about Environmental Print through Picture Books.

    Science.gov (United States)

    Kuby, Patricia; And Others

    1996-01-01

    Describes picture books that contain environmental print (print found in the natural environment of a child, such as logos, billboards, and road signs) and how they can be used in the classroom. Includes "ABC Drive!" by Naomi Howland (1994), "The Signmaker's Assistant" by Tedd Arnold (1992), and four others. Also provides a bibliography of other…

  3. Parameters affecting nitrogen oxides in a Coal-Fired Flow Facility system

    Energy Technology Data Exchange (ETDEWEB)

    Lu, Xiaoliang

    1996-03-01

    The unusually high temperature in the primary combustor of the Coal-Fired Magnetohydrodynamics (MHD) power generation system causes much higher nitrogen oxides (NO{sub x}) to be produced than in a conventional coal fired generation system. In order to lower the NO{sub x} concentration to an acceptable level, it is important to know how parameters of the MM power generation system affect the NO{sub x} concentration. This thesis investigates those effects in the Coal-Fired Flow Facility (CFFF) at the University of Tennessee Space Institute under the contract of US Department Of Energy (DOE). With thermodynamic and kinetic computer codes, the theoretical studies were carried out on the parameters of the CFFF system. The results gathered from the computer codes were analyzed and compared with the experimental data collected during the LMF5J test. The thermodynamic and kinetic codes together modeled the NO.{sub x} behavior with reasonable accuracy while some inconsistencies happened at the secondary combustor inlet.

  4. Cowpea production as affected by dry spells in no-tillage and conventional crop systems

    Directory of Open Access Journals (Sweden)

    Rômulo Magno Oliveira de Freitas

    2013-12-01

    Full Text Available The objective of this study was to evaluate the effect of different periods of water shortage in no-tillage and conventional crop systems on cowpea yield components and grain yield in the Mossoró-RN region. For this, an experiment was conducted using two tillage systems (conventional and no-tillage subjected to periods of irrigation suspension (2; 6; 10; 14; 18 end 22 days, started at flowering (34 days after sowing. Plants were harvested 70 days after sowing, and the studied variables were: Pods length (CV, number of grains per pod (NGV, number of pods per plant (NPP, the hundred grains weight (PCG and grain yield (kg ha-1. The no-tillage system is more productive than the conventional under both irrigation and water stress treatments. The water stress length affected grain yield and all yield components studied in a negative way, except for the hundred grains weight. Among the systems studied, the no-tillage provides higher values for the yield components, except the hundred grains weight.

  5. Comparative Proteomics Identifies Host Immune System Proteins Affected by Infection with Mycobacterium bovis.

    Directory of Open Access Journals (Sweden)

    Vladimir López

    2016-03-01

    Full Text Available Mycobacteria of the Mycobacterium tuberculosis complex (MTBC greatly impact human and animal health worldwide. The mycobacterial life cycle is complex, and the mechanisms resulting in pathogen infection and survival in host cells are not fully understood. Eurasian wild boar (Sus scrofa are natural reservoir hosts for MTBC and a model for mycobacterial infection and tuberculosis (TB. In the wild boar TB model, mycobacterial infection affects the expression of innate and adaptive immune response genes in mandibular lymph nodes and oropharyngeal tonsils, and biomarkers have been proposed as correlates with resistance to natural infection. However, the mechanisms used by mycobacteria to manipulate host immune response are not fully characterized. Our hypothesis is that the immune system proteins under-represented in infected animals, when compared to uninfected controls, are used by mycobacteria to guarantee pathogen infection and transmission. To address this hypothesis, a comparative proteomics approach was used to compare host response between uninfected (TB- and M. bovis-infected young (TB+ and adult animals with different infection status [TB lesions localized in the head (TB+ or affecting multiple organs (TB++]. The results identified host immune system proteins that play an important role in host response to mycobacteria. Calcium binding protein A9, Heme peroxidase, Lactotransferrin, Cathelicidin and Peptidoglycan-recognition protein were under-represented in TB+ animals when compared to uninfected TB- controls, but protein levels were higher as infection progressed in TB++ animals when compared to TB- and/or TB+ adult wild boar. MHCI was the only protein over-represented in TB+ adult wild boar when compared to uninfected TB- controls. The results reported here suggest that M. bovis manipulates host immune response by reducing the production of immune system proteins. However, as infection progresses, wild boar immune response recovers to

  6. Comparative Proteomics Identifies Host Immune System Proteins Affected by Infection with Mycobacterium bovis.

    Science.gov (United States)

    López, Vladimir; Villar, Margarita; Queirós, João; Vicente, Joaquín; Mateos-Hernández, Lourdes; Díez-Delgado, Iratxe; Contreras, Marinela; Alves, Paulo C; Alberdi, Pilar; Gortázar, Christian; de la Fuente, José

    2016-03-01

    Mycobacteria of the Mycobacterium tuberculosis complex (MTBC) greatly impact human and animal health worldwide. The mycobacterial life cycle is complex, and the mechanisms resulting in pathogen infection and survival in host cells are not fully understood. Eurasian wild boar (Sus scrofa) are natural reservoir hosts for MTBC and a model for mycobacterial infection and tuberculosis (TB). In the wild boar TB model, mycobacterial infection affects the expression of innate and adaptive immune response genes in mandibular lymph nodes and oropharyngeal tonsils, and biomarkers have been proposed as correlates with resistance to natural infection. However, the mechanisms used by mycobacteria to manipulate host immune response are not fully characterized. Our hypothesis is that the immune system proteins under-represented in infected animals, when compared to uninfected controls, are used by mycobacteria to guarantee pathogen infection and transmission. To address this hypothesis, a comparative proteomics approach was used to compare host response between uninfected (TB-) and M. bovis-infected young (TB+) and adult animals with different infection status [TB lesions localized in the head (TB+) or affecting multiple organs (TB++)]. The results identified host immune system proteins that play an important role in host response to mycobacteria. Calcium binding protein A9, Heme peroxidase, Lactotransferrin, Cathelicidin and Peptidoglycan-recognition protein were under-represented in TB+ animals when compared to uninfected TB- controls, but protein levels were higher as infection progressed in TB++ animals when compared to TB- and/or TB+ adult wild boar. MHCI was the only protein over-represented in TB+ adult wild boar when compared to uninfected TB- controls. The results reported here suggest that M. bovis manipulates host immune response by reducing the production of immune system proteins. However, as infection progresses, wild boar immune response recovers to limit pathogen

  7. A systems theory approach to career development: Exploring factors that affect science as a career choice

    Science.gov (United States)

    Liskey, Brian K.

    This research project was designed to examine the factors that affect students' choice in a career. Specifically, the factors of (a) achievement, (b) interest, (c) self-efficacy, (d) perceived preparation for a career, and (e) being informed about a career will be under investigation. Of key importance to the study is how these factors can affect a student's perception about choosing a science career. A quantitative analysis of secondary data from the 2006 and 2009 Program for International Student Assessment (PISA) international assessment and attitudinal questionnaire provided data on student perceptions and aptitude in science. The sample from PISA included over 400,000 15 year-old students from 57 countries. From the 57 countries, 30 countries, comprised by Organization for Economic and Cooperative Development (OECD), were isolated for analysis. Within this group of 30, 11 were selected for comparison based on their questionnaire response to expectations for a career in science at age 30. The Institute for Educational Science's, International Data Explorer was utilized to acquire and analyze data from the 2006 and 2009 PISA international tests and questionnaires to determine significance between scaled scores and PISA indices. Variables were chosen as factors affecting student's perception on various systems outlined by the Systems Theory of Career Development (Patton & McMahon, 1997) and the Systems Theory of Career Development Framework (Patton & McMahon, 1999). Four country groups were established based on student responses to question 30a from the 2006 PISA attitudinal questionnaire, which asks what career students expected to have at age 30. The results from comparing country groups showed that countries in Group A, which showed the highest values for students expecting a career in science, also had the highest average values for achievement on the PISA science literacy assessment. Likewise, countries that had the lowest values for expecting a career in

  8. Factors affecting mito-nuclear codon usage interactions in the OXPHOS system of Drosophila melanogaster

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Codon usage bias varies considerably among genomes and even within the genes of the same genome.In eukaryotic organisms,energy production in the form of oxidative phosphorylation(OXPHOS)is the only process under control of both nuclear and mitochondrial genomes.Although factors affecting codon usage in a single genome have been studied,this has not occurred when both interactional genomes are involved.Consequently, we investigated whether or not other factors influence codon usage of coevolved genes.We used Drosophila melanogaster as a model organism.Our χ2 test on the number of codons of nuclear and mitochondrial genes involved in the OXPHOS system was significantly different (χ2=7945.16,P<0.01).A plot of effective number of codons against GC3s content of nuclear genes showed that few genes lie on the expected curve,indicating that codon usage was random.Correspondence analysis indicated a significant correlation between axis 1 and codon adaptation index(R=0.947,P<0.01)in every nuclear gene sequence.Thus,codon usage bias of nuclear genes appeared to be affected by translational selection.Correlation between axis 1 coordinates and GC content(R=0.814.P<0.01)indicated that the codon usage of nuclear genes was also affected by GC composition.Analysis of mitochondrial genes did not reveal a significant correlation between axis 1 and any parameter.Statistical analyses indicated that codon usages of both nDNA and mtDNA were subjected to context-dependent mutations.

  9. Drug safety: withdrawn medications are only part of the picture.

    Science.gov (United States)

    Rawson, Nigel S B

    2016-01-01

    In a research article published in BMC Medicine, Onakpoya and colleagues provide a historical review of withdrawals of medications for safety reasons. However, withdrawn medications are only one part of the picture about how regulatory agencies manage drug risks. Moreover, medications introduced before the increased pre-marketing regulations and post-marketing monitoring systems instituted after the thalidomide tragedy have little relevance when considering the present drug safety picture because the circumstances under which they were introduced were completely different. To more fully understand drug safety management and regulatory agency actions, withdrawals should be evaluated within the setting and timeframe in which the medications are approved, which requires information about approvals and safety warnings. Studies are needed that provide a more comprehensive current picture of the identification and evaluation of drug safety risks as well as how regulatory agencies deal with them. Please see related research article: http://bmcmedicine.biomedcentral.com/articles/10.1186/s12916-016-0553-2. PMID:26873482

  10. Study of a bubble chamber's pictures automatic analyser: Coccinelle

    International Nuclear Information System (INIS)

    The automatic scanning and measuring system ''Coccinelle'' built in the Laboratoire de Physique Corpusculaire of College de France, is specially made for the pictures of the new large bubble chambers like BEBC and Mirabelle. This device uses the spot of a high precision cathode ray tube for the analysis of the picture according to a scanning window. The signal of a photomultiplier located behind the picture gives, after processing, the useful information in the form of coordinates of the analyzed points. Electronics, connected to a computer, generates the movements of the spot, the backward and forward movement of the films, and gives the right information for the programs of geometrical reconstruction of the tracks. The use of the device is based upon the collaboration of a programmed automaton and a human operator that have conversational facilities: TV display, light-pen and function keyboard. Beyond a detailed description of the whole device, this thesis insists especially on the following electronic parts: sweep generation of the spot, photomultiplier signal processing

  11. On the Convergence of Affective and Persuasive Technologies in Computer- Mediated Health-Care Systems

    Directory of Open Access Journals (Sweden)

    Rebeca I. García-Betances

    2015-01-01

    Full Text Available This paper offers a portrayal of how affective computing and persuasive technologies can converge into an effective tool for interfacing biomedical engineering with behavioral sciences and medicine. We describe the characteristics, features, applications, present state of the art, perspectives, and trends of both streams of research. In particular, these streams are analyzed in light of the potential contribution of their convergence for improving computer-mediated health-care systems, by facilitating the modification of patients’ attitudes and behaviors, such as engagement and compliance. We propose a framework for future research in this emerging area, highlighting how key constructs and intervening variables should be considered. Some specific implications and challenges posed by the convergence of these two technologies in health care, such as paradigm change, multimodality, patients’ attitude improvement, and cost reduction, are also briefly addressed and discussed.

  12. [An Electroencephalogram-driven Personalized Affective Music Player System: Algorithms and Preliminary Implementation].

    Science.gov (United States)

    Ma, Yong; Li, Juan; Lu, Bin

    2016-02-01

    In order to monitor the emotional state changes of audience on real-time and to adjust the music playlist, we proposed an algorithm framework of an electroencephalogram (EEG) driven personalized affective music recommendation system based on the portable dry electrode shown in this paper. We also further finished a preliminary implementation on the Android platform. We used a two-dimensional emotional model of arousal and valence as the reference, and mapped the EEG data and the corresponding seed songs to the emotional coordinate quadrant in order to establish the matching relationship. Then, Mel frequency cepstrum coefficients were applied to evaluate the similarity between the seed songs and the songs in music library. In the end, during the music playing state, we used the EEG data to identify the audience's emotional state, and played and adjusted the corresponding song playlist based on the established matching relationship. PMID:27382737

  13. Factors Affecting the Adoption of Mobile Payment Systems: An Empirical Analysis

    Directory of Open Access Journals (Sweden)

    İkram Daştan

    2016-02-01

    Full Text Available The world witnessed a rapid growth in the e-commerce in the recent years. Widespread use of mobile devices in the e-commerce has a role in this augmentation. Associated with growth of trading volume and the introduction of new devices, new products and solutions emerge and they diversify concerning online payments. Consumer attitudes and behaviors may change according to these developments. The purpose of this study is to investigate the factors effecting adoption of mobile payment systems by the consumer. 225 individuals were surveyed online through convenience sampling method. A research model was developed and proposed relationships were tested using structural equation modeling. The empirical findings point out that perceived trust, perceived mobility and attitudes positively affect the adoption of MPS; perceived usefulness and perceived ease of use have no effect on adoption of MPS. Furthermore perceived reputation positively related to perceived trust and finally environmental risk negatively related to perceived trust.

  14. How Equalization Techniques Affect the TCP Performance of MC-CDMA Systems in Correlated Fading Channels

    Directory of Open Access Journals (Sweden)

    Giacomo Leonardi

    2007-12-01

    Full Text Available This paper investigates the impact of several equalization techniques for multicarrier code division multiple access systems on the performance at both lower and upper layers (i.e., physical and TCP layers. Classical techniques such as maximal ratio combining, equal gain combining, orthogonality restoring combining, minimum mean square error, as well as a partial equalization (PE are investigated in time- and frequency-correlated fading channels with various numbers of interferers. Their impact on the performance at upper level is then studied. The results are obtained through an integrated simulation platform carefully reproducing all main aspects affecting the quality of service perceived by the final user, allowing an investigation of the real gain produced by signal processing techniques at TCP level.

  15. [An Electroencephalogram-driven Personalized Affective Music Player System: Algorithms and Preliminary Implementation].

    Science.gov (United States)

    Ma, Yong; Li, Juan; Lu, Bin

    2016-02-01

    In order to monitor the emotional state changes of audience on real-time and to adjust the music playlist, we proposed an algorithm framework of an electroencephalogram (EEG) driven personalized affective music recommendation system based on the portable dry electrode shown in this paper. We also further finished a preliminary implementation on the Android platform. We used a two-dimensional emotional model of arousal and valence as the reference, and mapped the EEG data and the corresponding seed songs to the emotional coordinate quadrant in order to establish the matching relationship. Then, Mel frequency cepstrum coefficients were applied to evaluate the similarity between the seed songs and the songs in music library. In the end, during the music playing state, we used the EEG data to identify the audience's emotional state, and played and adjusted the corresponding song playlist based on the established matching relationship.

  16. Pyrene fate affected by humic acid amendment in soil slurry systems

    Directory of Open Access Journals (Sweden)

    McLean Joan E

    2008-09-01

    Full Text Available Abstract Background Humic acid (HA has been found to affect the solubility, mineralization, and bound residue formation of polycyclic aromatic hydrocarbons (PAHs. However, most of the studies on the interaction between HA and PAH concentrated on one or two of the three phases. Few studies have provided a simple protocol to demonstrate the overall effects of HA on PAH distribution in soil systems for all three phases. Methods In this study, three doses of standard Elliott soil HA (ESHA, 15, 187.5, and 1,875 μg ESHA/g soil slurry, were amended to soil slurry systems. 14C-pyrene was added to the systems along with non-radiolabeled pyrene; 14C and 14CO2 were monitored for each system for a period of 120 days. Results The highest amendment dose significantly increased the 14C fraction in the aqueous phase within 24 h, but not after that time. Pyrene mineralization was significantly inhibited by the highest dose over the 120-day study. While organic solvent extractable 14C decreased with time in all systems, non-extractable or bound 14C was significantly enhanced with the highest dose of ESHA addition. Conclusion Amendment of the highest dose of ESHA to pyrene contaminated soil was observed to have two major functions. The first was to mitigate CO2 production significantly by reducing 14CO2 from 14C pyrene mineralization. The second was to significantly increase stable bound 14C formation, which may serve as a remediation end point. Overall, this study demonstrated a practical approach for decontamination of PAH contaminated soil. This approach may be applicable to other organic contaminated environments where active bioremediation is taking place.

  17. Conjugated linoleic acid of dairy foods is affected by cows’ feeding system and processing of milk

    Directory of Open Access Journals (Sweden)

    Juan Pablo Avilez Ruiz

    2016-04-01

    Full Text Available ABSTRACT The distribution of conjugated linoleic acid (CLA in dairy products commercially available in Chile is poorly understood. This study aimed to assess the content of CLA in dairy cow products from Chile and the effect of processing fresh milk into dairy products. Samples of raw milk were categorized into two groups based on the animal feeding system utilized by the dairy farm: 1 grazing based systems (Los Lagos region; and 2 housing systems using total mixed ration (TMR diets (Los Angeles region. Simultaneously, commercial samples of condensed milk, powdered milk, butter and Gouda cheese were analyzed. Furthermore, samples of raw milk and processed products (powdered and sweetened condensed milk were also analyzed. Dairy farms based on grazing systems had higher levels of CLA in raw milk than TMR farms. In addition, average values of CLA were 1.72 g 100 g−1 of total fatty acids, in spring milk in the Los Lagos region, and 0.42 g 100 g−1 in summer milk, in the Los Angeles region. Similarly, the CLA content of dairy products was higher than that of raw milk. Milk processing affected the transferring of CLA from fresh milk into the final products. Sweetened condensed milk presented lower CLA values than raw and powdered milk. In conclusion, this study indicates the importance of the production systems to the CLA content as well as the effects of milk processing into dairy products. To sum up, more research is needed to elucidate the exact effect of the processing conditions of dairy products on the CLA content.

  18. Affective Computing and the Impact of Gender and Age.

    Directory of Open Access Journals (Sweden)

    Stefanie Rukavina

    Full Text Available Affective computing aims at the detection of users' mental states, in particular, emotions and dispositions during human-computer interactions. Detection can be achieved by measuring multimodal signals, namely, speech, facial expressions and/or psychobiology. Over the past years, one major approach was to identify the best features for each signal using different classification methods. Although this is of high priority, other subject-specific variables should not be neglected. In our study, we analyzed the effect of gender, age, personality and gender roles on the extracted psychobiological features (derived from skin conductance level, facial electromyography and heart rate variability as well as the influence on the classification results. In an experimental human-computer interaction, five different affective states with picture material from the International Affective Picture System and ULM pictures were induced. A total of 127 subjects participated in the study. Among all potentially influencing variables (gender has been reported to be influential, age was the only variable that correlated significantly with psychobiological responses. In summary, the conducted classification processes resulted in 20% classification accuracy differences according to age and gender, especially when comparing the neutral condition with four other affective states. We suggest taking age and gender specifically into account for future studies in affective computing, as these may lead to an improvement of emotion recognition accuracy.

  19. Affective Computing and the Impact of Gender and Age.

    Science.gov (United States)

    Rukavina, Stefanie; Gruss, Sascha; Hoffmann, Holger; Tan, Jun-Wen; Walter, Steffen; Traue, Harald C

    2016-01-01

    Affective computing aims at the detection of users' mental states, in particular, emotions and dispositions during human-computer interactions. Detection can be achieved by measuring multimodal signals, namely, speech, facial expressions and/or psychobiology. Over the past years, one major approach was to identify the best features for each signal using different classification methods. Although this is of high priority, other subject-specific variables should not be neglected. In our study, we analyzed the effect of gender, age, personality and gender roles on the extracted psychobiological features (derived from skin conductance level, facial electromyography and heart rate variability) as well as the influence on the classification results. In an experimental human-computer interaction, five different affective states with picture material from the International Affective Picture System and ULM pictures were induced. A total of 127 subjects participated in the study. Among all potentially influencing variables (gender has been reported to be influential), age was the only variable that correlated significantly with psychobiological responses. In summary, the conducted classification processes resulted in 20% classification accuracy differences according to age and gender, especially when comparing the neutral condition with four other affective states. We suggest taking age and gender specifically into account for future studies in affective computing, as these may lead to an improvement of emotion recognition accuracy.

  20. Affective Computing and the Impact of Gender and Age

    Science.gov (United States)

    Rukavina, Stefanie; Gruss, Sascha; Hoffmann, Holger; Tan, Jun-Wen; Walter, Steffen; Traue, Harald C.

    2016-01-01

    Affective computing aims at the detection of users’ mental states, in particular, emotions and dispositions during human-computer interactions. Detection can be achieved by measuring multimodal signals, namely, speech, facial expressions and/or psychobiology. Over the past years, one major approach was to identify the best features for each signal using different classification methods. Although this is of high priority, other subject-specific variables should not be neglected. In our study, we analyzed the effect of gender, age, personality and gender roles on the extracted psychobiological features (derived from skin conductance level, facial electromyography and heart rate variability) as well as the influence on the classification results. In an experimental human-computer interaction, five different affective states with picture material from the International Affective Picture System and ULM pictures were induced. A total of 127 subjects participated in the study. Among all potentially influencing variables (gender has been reported to be influential), age was the only variable that correlated significantly with psychobiological responses. In summary, the conducted classification processes resulted in 20% classification accuracy differences according to age and gender, especially when comparing the neutral condition with four other affective states. We suggest taking age and gender specifically into account for future studies in affective computing, as these may lead to an improvement of emotion recognition accuracy. PMID:26939129

  1. Remote sensing and geographic information system for appraisal of salt-affected soils in India.

    Science.gov (United States)

    Singh, Gurbachan; Bundela, D S; Sethi, Madhurama; Lal, Khajanchi; Kamra, S K

    2010-01-01

    Quantification of the nature, extent, and spatial distribution of salt-affected soils (SAS) for India and the world is essential for planning and implementing reclamation programs in a timely and cost-effective manner for sustained crop production. The national extent of SAS for India over the last four decades was assessed by conventional and remote sensing approaches using diverse methodologies and class definitions and ranged from 6.0 to 26.1 million hectares (Mha) and 1.2 to 10.1 Mha, respectively. In 1966, an area of 6 Mha under SAS was first reported using the former approach. Three national estimates, obtained using remote sensing, were reconciled using a geographic information system, resulting in an acceptable extent of 6.73 Mha. Moderately and severely salt-encrusted lands having large contiguous area have been correctly mapped, but slightly salt-encrusted land having smaller affected areas within croplands has not been accurately mapped. Recent satellite sensors (e.g., Resourcesat-1, Cartosat-2, IKONOS-II, and RISAT-2), along with improved image processing techniques integrated with terrain and other spatial data using a geographic information system, are enabling mapping at large scale. Significant variations in salt encrustation at the surface caused by soil moisture, waterlogging conditions, salt-tolerant crops, and dynamics of subsurface salts present constraints in appraisal, delineation, and mapping efforts. The article provides an overview of development, identification, characterization, and delineation of SAS, past and current national scenarios of SAS using conventional and remote sensing approaches, reconciliation of national estimates, issues of SAS mapping, and future scope.

  2. Parametric analysis of variables that affect the performance of a desiccant dehumidification system

    Energy Technology Data Exchange (ETDEWEB)

    Vineyard, E.A.; Sand, J.R.; Durfee, D.J.

    2000-07-01

    Desiccant dehumidification systems, which are used to reduce the moisture (latent load) of the conditioned air in buildings, are typically specified on the basis of grain depression (pounds of water removed per hour) for a given volumetric flow rate of air at a specified dry-bulb or wet-bulb temperature. While grain depression gives some indication of the performance of the system, it does not adequately describe the efficiency of the moisture removal process. Several operating parameters, such as desiccant wheel speed, regeneration temperature, volumetric air flow rate, wheel thickness, sector angle, and desiccant loading, affect the ability of the desiccant dehumidification system to remove moisture. There are so many design parameters that influence the operation of a desiccant system that it is difficult to quantify the impact from the interactions on system performance. The purpose of this study is to investigate the impact of varying some of these operating parameters on the performance of a desiccant dehumidification system and to report the results using more quantitative measures, such as latent capacity and latent coefficient of performance (COP), that better describe the efficiency of the moisture removal process. The results will be used to improve the understanding of the operation of desiccant systems and to optimize their performance by changing certain operating parameters or improving components. Two desiccant loadings were tested: one at normal production level and the other with 25% more desiccant applied to the wheel. For both desiccant loadings, the latent capacity and COP increased as desiccant wheel speed increased. As expected, latent capacity improved significantly as air flow rates increased. It is noted, however, that the efficiency (latent COP) was quite sensitive to air flow rate and showed a maximum at a particular flow rate that best matched the other operating/design conditions of the system. Finally, higher regeneration temperatures

  3. MIP- MULTIMISSION INTERACTIVE PICTURE PLANNING PROGRAM

    Science.gov (United States)

    Callahan, J. D.

    1994-01-01

    The Multimission Interactive Picture Planner, MIP, is a scientifically accurate and fast, 3D animation program for deep space. MIP is also versatile, reasonably comprehensive, portable, and will run on microcomputers. New techniques were developed to rapidly perform the calculations and transformations necessary to animate scientifically accurate 3D space. At the same time, portability is maintained, as the transformations and clipping have been written in FORTRAN 77 code. MIP was primarily designed to handle Voyager, Galileo, and the Space Telescope. It can, however, be adapted to handle other missions. The space simulation consists of a rotating body (usually a planet), any natural satellites, a spacecraft, the sun, stars, descriptive labelling, and field of view boxes. The central body and natural satellites are tri-axial wireframe representations with terminators, limbs, and landmarks. Hidden lines are removed for the central body and natural satellites, but not for the scene as a whole so that bodies may be seen behind one another. The program has considerable flexibility in its step time, observer position, viewed object, field of view, etc. Most parameters may be changed from the keyboard while the simulation is running. When MIP is executed it will ask the user for a control file, which should be prepared before execution. The control file identifies which mission MIP should simulate, the star catalog files, the ephemerides files to be used, the central body, planets, asteroids, and comets, and solar system landmarks and constants such as planets, asteroids, and comets. The control file also describes the fields of view. Control files are included to simulate the Voyager 1 encounter at Jupiter and the Giotto spacecraft's flyby of Halley's comet. Data is included for Voyager 1 and 2 (all 6 planetary encounters) and Giotto. MIP was written for an IBM PC or compatibles. It requires 512K of RAM, a CGA or compatible graphics adapter, and DOS 2.0 or higher. Users

  4. Multilevel Dynamic Systems Affecting Introduction of HIV/STI Prevention Innovations among Chinese Women in Sex Work Establishments

    Science.gov (United States)

    Weeks, Margaret R.; Li, Jianghong; Liao, Susu; Zhang, Qingning; Dunn, Jennifer; Wang, Yanhong; Jiang, Jingmei

    2013-01-01

    Social and public health scientists are increasingly interested in applying system dynamics theory to improve understanding and to harness the forces of change within complex, multilevel systems that affect community intervention implementation, effects, and sustainability. Building a system dynamics model based on ethnographic case study has the…

  5. NATIONAL WORLD PICTURE THROUGH THE PRISM OF SOCIO-POLITICAL DISCOURSE

    Directory of Open Access Journals (Sweden)

    Kurganova, N.I.

    2016-06-01

    Full Text Available The article dwells on the methodological basis of studying the world picture specificity through the prism of social-political discourse. World picture as a system of knowledge, ideas, value judgments developed by all the members of a linguacultural community and represented in words and texts, reflects the results of a cognitive activity that permits to study it as a structured and systemic phenomenon. The authors propose a set of methods and procedures of modelling the parameters of world picture with special reference to the seasonal data collection from the Canadian newspaper Le Devoir (issued in French in the Province of Quebec, such as: distinguishing key concepts, modelling a cognitive, field, and semantic structure of concepts as elements of the world picture.

  6. Atomic tunneling ionization in a photon picture

    Science.gov (United States)

    Wang, Yujun; Esry, B. D.

    2015-05-01

    Above-threshold ionization (ATI) and high-harmonic generation (HHG) are studied by the photon-phase formalism in the tunneling regime. Different from the commonly used three-step model for understanding such strong-field phenomena, we show that each order of the ATI or HHG peaks is strongly associated with a single ``photon channel'' in the photon-phase picture. This simplicity allows an identification of pathways for each of the orders. This picture not only provides a convenient means to understand the electron dynamics in the strong field, but also gives insights that may help engineer laser pulses to manipulate the output of the ATI or HHG. We apply this method to quantify the strong-field-induced ionization threshold shift and study the carrier-envelope phase dependence of the HHG. Supported by the Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy

  7. [Polymyositis/dermatomyositis--clinical picture and treatment].

    Science.gov (United States)

    Anić, Branimir; Cerovec, Mislav

    2012-01-01

    The clinical presentation ofmyositis ranges from a painless muscle weakness to significant myalgia with muscle weakness and constitutional symptoms. Along with muscle and skin affection and constitutional symptoms, the disease can affect lungs, joints, heart and gastrointestinal system. It is important to note that the clinical presentation ofmyositis syndrome may overlap with symptoms of other connective tissue disease in overlap syndromes (SLE, SSCL, RA, SSjö). Common manifestations of the disease are weakness and muscle fatigue, which is the result of skeletal muscles inflammation (usually the proximal group of muscles, bilaterally and symmetrical). Severe forms of the disease with affection of the throat and respiratory muscles can vitally endan- ger patients. Among constitutional (general) symptoms, fever, malaise and weight loss are usually expressed. Skin affection in dermatomyositis can be localized or generalized like vesiculobullous erythroderma. Pathognomonic cutaneous manifestations of dermatomyositis are Gottron's papules and heliotrope erythema. Lungs are most commonly affected organs (with exception of muscles and skin) in polymyositis and dermatomyositis. The affection of lung can sometimes result in fatal outcome (interstitial lung disease, secondary pulmonary hypertension). Cardiac affection is usually subclinical, but can also be expressed as heart failure, acute coronary syndrome or conduction disturbances. Infrequent manifestations of the disease are gastroesophageal reflux, malabsorption, gastrointestinal mucosal ulceration, soft tissue calcification, Raynaud's syndrome, arthralgia/arthritis and some other less common clinical manifestations of the disease. Treatment of polymyositis/dermatomyositis includes immunosuppressive/immunomodulatory therapy and supportive, symptomatic treatment. The basis for myositis treatment are glucocorticoids, which are applied orally in a daily dosage regimen of 0.75 to 1 mg/kg/day, and in severe forms of the

  8. The Complex Picture Test in Dementia

    Directory of Open Access Journals (Sweden)

    K. Gustaw Rothenberg

    2012-10-01

    Full Text Available The newly developed Complex Picture Test (CPT examines main cognitive domains, especially perceptual and visual-spatial abilities. The potential usefulness of the CPT in the assessment of dementia was evaluated. Patients with different forms of dementia [14 vascular dementia (VaD, 30 Alzheimer’s disease (AD, 6 Parkinson’s disease dementia (PDD], 12 subjects with mild cognitive impairment (MCI, and 30 matched controls were examined by the CPT, Mini-Mental State Examination (MMSE, the WAIS-R Digit Span subtest, and the Clock Drawing Test (CDT. The CPT consists of 10 complex pictures, each presenting characteristics paradoxically in opposition to each other. The subjects scored points for naming the object and noticing the paradox. One point was added for commenting on the paradox without prompting (3 points each picture/maximum of 30. CPT scores were significantly higher in the control group (mean ± SD, 29.46 ± 1.43 than in the AD, VaD, MCI, and PDD groups (13.1 ± 2.3, 16.9 ± 3.5, 23.2 ± 1.4, and 23.6 ± 3.4, respectively; p < 0.05. Significant positive correlations between MMSE, Digit Span, CDT, and CPT scores were observed (rho 0.76, 0.35, and 0.56, respectively. These data show perception of complex pictures being compromised in dementia. The correlation between CPT scores and MMSE scores suggests that tests may be used as a brief screening tool for dementia.

  9. The AGL Equation from a Dipole Picture

    CERN Document Server

    Gay-Ducati, M B

    1999-01-01

    The AGL equation includes all multiple pomeron exchanges in the double logarithmic approximation (DLA) limit, leading to an unitarized gluon distribution in the small $x$ regime. This equation was originally obtained using the Glauber-Mueller approach. We demonstrate in this contribution that the AGL equation can also be obtained from the dipole picture. Our conclusion is that the AGL equation is a good candidate for an unitarized evolution equation at small $x$ in the DLA limit.

  10. Dwarfism and gigantism in historical picture postcards.

    OpenAIRE

    Enderle, A

    1998-01-01

    A collection of 893 historical picture postcards from 1900 to 1935, depicting dwarfs and giants, was analysed from medical and psychosocial viewpoints. In conditions such as 'bird headed dwarfism', achondroplasia, cretinism, so-called Aztecs or pinheads, Grebe chondrodysplasia, and acromegalic gigantism, the disorder could be diagnosed easily. In hypopituitary dwarfism, exact diagnosis was more difficult because of heterogeneity. The most common conditions depicted were pituitary dwarfism and...

  11. A Picture Is Worth a Thousand Exercises

    Science.gov (United States)

    Foster, Colin

    2011-01-01

    One sign of a good task is that it will work just as well with Year 7 as with Year 13. The author asks learners to use graph-drawing software to draw a picture with graphs. He uses his imagination to suggest what a particular curve might resemble and helps learners to adjust their drawings to achieve what they are trying to make. Sometimes, one…

  12. Aestheticism in the Picture of Dorian Gray

    Institute of Scientific and Technical Information of China (English)

    康妮芝

    2009-01-01

    Aestheticism or aestheticism movement Was an impomuat phenomenon during the hter nineteenth century.Aestheticism advocated the phrase"art for art's sake".Oscar Wildewas the most famous aestheticism writer during the later nineteenth century in Enghnd.His novel the Picture of Dorian Gray was the representative show of his aestheticism thought.The passage mainly shows Wilde's aestheticism thought of the novel in three aspects.

  13. Picturing mobility: Transition probability color plots

    OpenAIRE

    Philippe Kerm

    2011-01-01

    This talk presents a simple graphical device for visualization of patterns of income mobility. The device uses color palettes to picture information contained in transition matrices created from a fine partition of the marginal distributions. The talk explains how these graphs can be constructed using the user-written package spmap from Maurizio Pisati, briefly presents the wrapper command transcolorplot (for transition probability color plots) and demonstrates how such graphs are effective f...

  14. A motion picture presentation of magnetic pulsations

    Science.gov (United States)

    Suzuki, A.; Kim, J. S.; Sugura, M.; Nagano, H.

    1981-01-01

    Using the data obtained from the IMS North American magnetometer network stations at high latitudes, a motion picture was made by a computer technique, describing time changes of Pc5 and Pi3 magnetic pulsation vectors. Examples of pulsation characteristics derived from this presentation are regional polarization changes including shifts of polarization demarcation lines, changes in the extent of an active region and its movement with time.

  15. Two phase picture in driven polymer translocation

    OpenAIRE

    Saito, Takuya; Sakaue, Takahiro

    2012-01-01

    Two phase picture is a simple and effective methodology to capture the nonequilibrium dynamics of polymer associated with tension propagation. When applying it to the driven translocation process, there is a point to be noted, as briefly discussed in our recent article [Phys. Rev. E 85, 061803 (2012)]. In this article, we address this issue in detail and modify our previous prediction [Euro. Phys. J. E 34, 135 (2011)] by adopting an alternative steady-state ansatz. The modified scaling predic...

  16. A Spectrum is Worth a Thousand Pictures

    Science.gov (United States)

    Gelderman, Richard F.

    2006-12-01

    A wise astronomer once pointed out that if a picture is worth a thousand words, then a spectrum is worth a thousand pictures. Unfortunately, spectra are rarely emphasized in the introductory astronomy courses and few students exit such a course with any meaningful understanding or appreciation of spectroscopy. Part of the problem is lack of background knowledge; the typical introductory astronomy student has little experience with spectroscopy or atomic physics. Another issue is that spectra are not pretty pictures and are not intuitively understandable. We present and discuss a series of “minds-on” exercises and activities built into a college-level “stars, galaxies, and cosmology” intro astronomy course. The lessons are structured to help students improve their ability to recognize patterns and improve their ability to really see the details in front of them. Another goal is for students to realize there is “more than meets the eye” to learn how to discover “hidden” diagnostics, such as different sources of light their eyes see as white light. A curriculum that emphasizes spectroscopy also provides the opportunity to stress the story of the “Harvard Women,” a tale that bridges gender gaps and often humanizes scientists in the eyes of non-science majors. Finally, with a solid foundation in spectroscopy, students are better prepared to understand exciting topics such as Hubble’s Law and the importance of primordial nucleosynthesis.

  17. Cut and paste pictures in surrealism

    Directory of Open Access Journals (Sweden)

    Todić Milanka

    2006-01-01

    Full Text Available Proceeding from the idea of the readymade, Marko Ristić’s, Vane Bor’s and Dušan Matić’s collages regroup readymade pictorial and textual matrices according to the rules of free associative syntax. Everything that they collected cut out and pasted bears the hallmark of personal choice, i.e. objective chance, as the Surrealists would say. In the new structure of the collage, picture and text were of equal importance. However, we should not forget that both picture and text were only fragments, of different origin so that they could not function as autonomous elements in their own right nor could they establish logical interlinks. Cut and paste picture in Surrealism are primarily registered as visual wholes, in which the former principle of harmony has been substituted by the principle of discontinuity. In fact, they do not aspire to establish closed and unambiguous semantic structures either on a single paper or within a cycle, disregarding as they do conventional narrative and illustrative order in representing reality.

  18. Factors affecting 137Cs bio- availability under the application of different fertilizing systems

    Science.gov (United States)

    Fedorkova, M. V.; Belova, N. I.

    2012-04-01

    Although it has been 25 years since the Chernobyl accident, it was generally found that radiocaesium remained bio-availability in some regions. Plant uptake of 137Cs is depended from quantity of exchangeable radionuclide and strongly influenced by soil properties. The addition of fertilizers to soil induces chemical and biological changes that influence the distribution of free ions the different phases (soil and soil solution). In this study we try to estimate influence of different soil conditions affecting the 137Cs bio-availability under the application of manure and inorganic fertilizers. Our research carried out in 2001-2008 years on contaminated after Chernobyl accident sod-podzolic soil during of prolonged field experiment. The experimental site was located in south-west of Bryansk region, Russia. Contamination density by 137Cs in the sampling point was equal to 475±30 kBq/m2. The sequence of crops in rotation was: 1) potato; 2) oats 3) lupine 4) winter rye. Three fertilizing systems were compared: organic - 80 tons per hectare of cow manure; inorganic fertilizing system - different rates of NPK (low, temperate and high) and mixed - 40 tons per hectare of cow manure + NPK. Main soil properties and chemical form of 137Cs and K (potassium) were detected. Radiocaesium activity was determined in soil and plant samples by gamma spectrometry, using a high purity Ge detectors. Overall efficiency was known to an accuracy of about 10-12%. Obtained results shows, that various fertilizing systems influence soil properties, chemical forms of 137Cs and K in soil and radionuclide soil-to-plant transfer in different ways. The highest reduction of exchangeable 137Cs in soil was found in case with application of organic fertilizers and also - temperate NPK rates. Part of exchangeable 137Cs is equal 6.8% (from total activity) in case of manure, 7.8% in case of inorganic fertilizers with control value - 10.2%. Caesium mobility in soil is affected by such soil properties as

  19. Attachment style impacts behavior and early oculomotor response to positive, but not negative, pictures.

    Science.gov (United States)

    Silva, Catarina; Chaminade, Thierry; David, Da Fonseca; Santos, Andreia; Esteves, Francisco; Soares, Isabel; Deruelle, Christine

    2015-06-01

    The present study investigated whether oculomotor behavior is influenced by attachment styles. The Relationship Scales Questionnaire was used to assess attachment styles of forty-eight voluntary university students and to classify them into attachment groups (secure, preoccupied, fearful, and dismissing). Eye-tracking was recorded while participants engaged in a 3-seconds free visual exploration of stimuli presenting either a positive or a negative picture together with a neutral picture, all depicting social interactions. The task consisted in identifying whether the two pictures depicted the same emotion. Results showed that the processing of negative pictures was impermeable to attachment style, while the processing of positive pictures was significantly influenced by individual differences in insecure attachment. The groups highly avoidant regarding to attachment (dismissing and fearful) showed reduced accuracy, suggesting a higher threshold for recognizing positive emotions compared to the secure group. The groups with higher attachment anxiety (preoccupied and fearful) showed differences in automatic capture of attention, in particular an increased delay preceding the first fixation to a picture of positive emotional valence. Despite lenient statistical thresholds induced by the limited sample size of some groups (p emotions is affected by attachment styles. These results are discussed within a broader evolutionary framework. PMID:25693911

  20. Validity and Reliability of a Working Memory Task for Children: Picture Span

    OpenAIRE

    Burin, Débora I.; Calero, Alejandra; Injoque-Ricle, Irene

    2013-01-01

    Working Memory is an active memory system responsible of simultaneous storage and concurrent processing of information. The aim of this work is to present the psychometric properties of a global Working Memory task: Picture Span. Picture Span along with the Automated Working Memory Assessment battery Block Design subtest of the Wechsler Intelligence Scale for Children were administered to 210 children of 6-, 8- and 11-years old from Buenos Aires City, Argentina. Internal consistency using Cro...

  1. Stress-related serotonergic systems: implications for symptomatology of anxiety and affective disorders.

    Science.gov (United States)

    Hale, Matthew W; Shekhar, Anantha; Lowry, Christopher A

    2012-07-01

    Previous studies have suggested that serotonergic neurons in the midbrain raphe complex have a functional topographic organization. Recent studies suggest that stimulation of a bed nucleus of the stria terminalis-dorsal raphe nucleus pathway by stress- and anxiety-related stimuli modulates a subpopulation of serotonergic neurons in the dorsal part of the dorsal raphe nucleus (DRD) and caudal part of the dorsal raphe nucleus (DRC) that participates in facilitation of anxiety-like responses. In contrast, recent studies suggest that activation of a spinoparabrachial pathway by peripheral thermal or immune stimuli excites subpopulations of serotonergic neurons in the ventrolateral part of the dorsal raphe nucleus/ventrolateral periaqueducal gray (DRVL/VLPAG) region and interfascicular part of the dorsal raphe nucleus (DRI). Studies support a role for serotonergic neurons in the DRVL/VLPAG in inhibition of panic-like responses, and serotonergic neurons in the DRI in antidepressant-like effects. Thus, data suggest that while some subpopulations of serotonergic neurons in the dorsal raphe nucleus play a role in facilitation of anxiety-like responses, others play a role in inhibition of anxiety- or panic-like responses, while others play a role in antidepressant-like effects. Understanding the anatomical and functional properties of these distinct serotonergic systems may lead to novel therapeutic strategies for the prevention and/or treatment of affective and anxiety disorders. In this review, we describe the anatomical and functional properties of subpopulations of serotonergic neurons in the dorsal raphe nucleus, with a focus on those implicated in symptoms of anxiety and affective disorders, the DRD/DRC, DRVL/VLPAG, and DRI. PMID:22484834

  2. An ERP study of recognition memory for concrete and abstract pictures in school-aged children.

    Science.gov (United States)

    Boucher, Olivier; Chouinard-Leclaire, Christine; Muckle, Gina; Westerlund, Alissa; Burden, Matthew J; Jacobson, Sandra W; Jacobson, Joseph L

    2016-08-01

    Recognition memory for concrete, nameable pictures is typically faster and more accurate than for abstract pictures. A dual-coding account for these findings suggests that concrete pictures are processed into verbal and image codes, whereas abstract pictures are encoded in image codes only. Recognition memory relies on two successive and distinct processes, namely familiarity and recollection. Whether these two processes are similarly or differently affected by stimulus concreteness remains unknown. This study examined the effect of picture concreteness on visual recognition memory processes using event-related potentials (ERPs). In a sample of children involved in a longitudinal study, participants (N=96; mean age=11.3years) were assessed on a continuous visual recognition memory task in which half the pictures were easily nameable, everyday concrete objects, and the other half were three-dimensional abstract, sculpture-like objects. Behavioral performance and ERP correlates of familiarity and recollection (respectively, the FN400 and P600 repetition effects) were measured. Behavioral results indicated faster and more accurate identification of concrete pictures as "new" or "old" (i.e., previously displayed) compared to abstract pictures. ERPs were characterized by a larger repetition effect, on the P600 amplitude, for concrete than for abstract images, suggesting a graded recollection process dependent on the type of material to be recollected. Topographic differences were observed within the FN400 latency interval, especially over anterior-inferior electrodes, with the repetition effect more pronounced and localized over the left hemisphere for concrete stimuli, potentially reflecting different neural processes underlying early processing of verbal/semantic and visual material in memory.

  3. Land-use systems affect Archaeal community structure and functional diversity in western Amazon soils

    Directory of Open Access Journals (Sweden)

    Acácio Aparecido Navarrete

    2011-10-01

    Full Text Available The study of the ecology of soil microbial communities at relevant spatial scales is primordial in the wide Amazon region due to the current land use changes. In this study, the diversity of the Archaea domain (community structure and ammonia-oxidizing Archaea (richness and community composition were investigated using molecular biology-based techniques in different land-use systems in western Amazonia, Brazil. Soil samples were collected in two periods with high precipitation (March 2008 and January 2009 from Inceptisols under primary tropical rainforest, secondary forest (5-20 year old, agricultural systems of indigenous people and cattle pasture. Denaturing gradient gel electrophoresis of polymerase chain reaction-amplified DNA (PCR-DGGE using the 16S rRNA gene as a biomarker showed that archaeal community structures in crops and pasture soils are different from those in primary forest soil, which is more similar to the community structure in secondary forest soil. Sequence analysis of excised DGGE bands indicated the presence of crenarchaeal and euryarchaeal organisms. Based on clone library analysis of the gene coding the subunit of the enzyme ammonia monooxygenase (amoA of Archaea (306 sequences, the Shannon-Wiener function and Simpson's index showed a greater ammonia-oxidizing archaeal diversity in primary forest soils (H' = 2.1486; D = 0.1366, followed by a lower diversity in soils under pasture (H' = 1.9629; D = 0.1715, crops (H' = 1.4613; D = 0.3309 and secondary forest (H' = 0.8633; D = 0.5405. All cloned inserts were similar to the Crenarchaeota amoA gene clones (identity > 95 % previously found in soils and sediments and distributed primarily in three major phylogenetic clusters. The findings indicate that agricultural systems of indigenous people and cattle pasture affect the archaeal community structure and diversity of ammonia-oxidizing Archaea in western Amazon soils.

  4. Quasi-Linear Algebras and Integrability (the Heisenberg Picture

    Directory of Open Access Journals (Sweden)

    Alexei Zhedanov

    2008-02-01

    Full Text Available We study Poisson and operator algebras with the ''quasi-linear property'' from the Heisenberg picture point of view. This means that there exists a set of one-parameter groups yielding an explicit expression of dynamical variables (operators as functions of ''time'' t. We show that many algebras with nonlinear commutation relations such as the Askey-Wilson, q-Dolan-Grady and others satisfy this property. This provides one more (explicit Heisenberg evolution interpretation of the corresponding integrable systems.

  5. A mental picture of the greenhouse effect - A pedagogic explanation

    Science.gov (United States)

    Benestad, Rasmus E.

    2016-01-01

    The popular picture of the greenhouse effect emphasises the radiation transfer but fails to explain the observed climate change. An old conceptual model for the greenhouse effect is revisited and presented as a useful resource in climate change communication. It is validated against state-of-the-art data, and nontraditional diagnostics show a physically consistent picture. The earth's climate is constrained by well-known and elementary physical principles, such as energy balance, flow, and conservation. Greenhouse gases affect the atmospheric optical depth for infrared radiation, and increased opacity implies higher altitude from which earth's equivalent bulk heat loss takes place. Such an increase is seen in the reanalyses, and the outgoing long-wave radiation has become more diffuse over time, consistent with an increased influence of greenhouse gases on the vertical energy flow from the surface to the top of the atmosphere. The reanalyses further imply increases in the overturning in the troposphere, consistent with a constant and continuous vertical energy flow. The increased overturning can explain a slowdown in the global warming, and the association between these aspects can be interpreted as an entanglement between the greenhouse effect and the hydrological cycle, where reduced energy transfer associated with increased opacity is compensated by tropospheric overturning activity.

  6. Using Children's Picture Books about Autism as Resources in Inclusive Classrooms

    Science.gov (United States)

    Sigmon, Miranda L.; Tackett, Mary E.; Azano, Amy Price

    2016-01-01

    This article focuses on developing teacher understanding of how to carefully select and use children's picture books about autism as a tool for teaching awareness, empathy, and acceptance in an elementary classroom setting. We describe how the increased rate of autism and growing practice of inclusive educational settings affect classroom practice…

  7. Affective modulation of the startle reflex and the Reinforcement Sensitivity Theory of personality: The role of sensitivity to reward.

    Science.gov (United States)

    Aluja, Anton; Blanch, Angel; Blanco, Eduardo; Balada, Ferran

    2015-01-01

    This study evaluated differences in the amplitude of startle reflex and Sensitivity to Reward (SR) and Sensitivity to Punishment (SP) personality variables of the Reinforcement Sensitivity Theory (RST). We hypothesized that subjects with higher scores in SR would obtain a higher startle reflex when exposed to pleasant pictures than lower scores, while higher scores in SP would obtain a higher startle reflex when exposed to unpleasant pictures than subjects with lower scores in this dimension. The sample consisted of 112 healthy female undergraduate psychology students. Personality was assessed using the short version of the Sensitivity to Punishment and Sensitivity Reward Questionnaire (SPSRQ). Laboratory anxiety was controlled by the State Anxiety Inventory. The startle blink reflex was recorded electromyographically (EMG) from the right orbicularis oculi muscle as a response to the International Affective Picture System (IAPS) pleasant, neutral and unpleasant pictures. Subjects higher in SR obtained a significant higher startle reflex response in pleasant pictures than lower scorers (48.48 vs 46.28, p<0.012). Subjects with higher scores in SP showed a light tendency of higher startle responses in unpleasant pictures in a non-parametric local regression graphical analysis (LOESS). The findings shed light on the relationships among the impulsive-disinhibited personality, including sensitivity to reward and emotions evoked through pictures of emotional content.

  8. Affective modulation of the startle reflex and the Reinforcement Sensitivity Theory of personality: The role of sensitivity to reward.

    Science.gov (United States)

    Aluja, Anton; Blanch, Angel; Blanco, Eduardo; Balada, Ferran

    2015-01-01

    This study evaluated differences in the amplitude of startle reflex and Sensitivity to Reward (SR) and Sensitivity to Punishment (SP) personality variables of the Reinforcement Sensitivity Theory (RST). We hypothesized that subjects with higher scores in SR would obtain a higher startle reflex when exposed to pleasant pictures than lower scores, while higher scores in SP would obtain a higher startle reflex when exposed to unpleasant pictures than subjects with lower scores in this dimension. The sample consisted of 112 healthy female undergraduate psychology students. Personality was assessed using the short version of the Sensitivity to Punishment and Sensitivity Reward Questionnaire (SPSRQ). Laboratory anxiety was controlled by the State Anxiety Inventory. The startle blink reflex was recorded electromyographically (EMG) from the right orbicularis oculi muscle as a response to the International Affective Picture System (IAPS) pleasant, neutral and unpleasant pictures. Subjects higher in SR obtained a significant higher startle reflex response in pleasant pictures than lower scorers (48.48 vs 46.28, p<0.012). Subjects with higher scores in SP showed a light tendency of higher startle responses in unpleasant pictures in a non-parametric local regression graphical analysis (LOESS). The findings shed light on the relationships among the impulsive-disinhibited personality, including sensitivity to reward and emotions evoked through pictures of emotional content. PMID:25447471

  9. How does real affect affect affect recognition in speech?

    NARCIS (Netherlands)

    Truong, Khiet Phuong

    2009-01-01

    The aim of the research described in this thesis was to develop speech-based affect recognition systems that can deal with spontaneous (‘real’) affect instead of acted affect. Several affect recognition experiments with spontaneous affective speech data were carried out to investigate what combinati

  10. Culture temperature affects human chondrocyte messenger RNA expression in monolayer and pellet culture systems.

    Directory of Open Access Journals (Sweden)

    Akira Ito

    Full Text Available Cell-based therapy has been explored for articular cartilage regeneration. Autologous chondrocyte implantation is a promising cell-based technique for repairing articular cartilage defects. However, there are several issues such as chondrocyte de-differentiation. While numerous studies have been designed to overcome some of these issues, only a few have focused on the thermal environment that can affect chondrocyte metabolism and phenotype. In this study, the effects of different culture temperatures on human chondrocyte metabolism- and phenotype-related gene expression were investigated in 2D and 3D environments. Human chondrocytes were cultured in a monolayer or in a pellet culture system at three different culture temperatures (32°C, 37°C, and 41°C for 3 days. The results showed that the total RNA level, normalized to the threshold cycle value of internal reference genes, was higher at lower temperatures in both culture systems. Glyceraldehyde-3-phosphate dehydrogenase (GAPDH and citrate synthase (CS, which are involved in glycolysis and the citric acid cycle, respectively, were expressed at similar levels at 32°C and 37°C in pellet cultures, but the levels were significantly lower at 41°C. Expression of the chondrogenic markers, collagen type IIA1 (COL2A1 and aggrecan (ACAN, was higher at 37°C than at 32°C and 41°C in both culture systems. However, this phenomenon did not coincide with SRY (sex-determining region Y-box 9 (SOX9, which is a fundamental transcription factor for chondrogenesis, indicating that a SOX9-independent pathway might be involved in this phenomenon. In conclusion, the expression of chondrocyte metabolism-related genes at 32°C was maintained or enhanced compared to that at 37°C. However, chondrogenesis-related genes were further induced at 37°C in both culture systems. Therefore, manipulating the culture temperature may be an advantageous approach for regulating human chondrocyte metabolic activity and

  11. 'Reading' bubble chamber pictures with the Spiral Reader eyes.

    CERN Multimedia

    1974-01-01

    Interactive techniques were widely used to study bubble chamber pictures. After a visual scanning of the pictures and a vertex measurement on a Shivamatic, the Spiral Reader allowed the track polar coordinates to be easily measured. See photo 7408137X

  12. Critical notes on the neuro-evolutionary archaeology of affective systems.

    Science.gov (United States)

    Barratt, Barnaby B

    2015-04-01

    If progress is to be made in resolving the debate over the relevance of neuroscientific findings to psychoanalysis, a clearer distinction must be established between a narrow definition of psychoanalysis as "praxis" (the science of lived experience and its conflicts or contradictions) and a definition that focuses on metapsychology as objectivistic theory-building. The investigations of Jaak Panksepp on the "neuro-archaeology" of affective systems are reviewed as an example of how findings in neuroscience cannot be legitimately extrapolated to offer conclusions about the domain of lived experience. In this context, Freud's shifting standpoint is reviewed and, following the writings of Jean Laplanche, the significance of Freud's distinction between "drives" or libidinality, as acquired through experience, and "instincts," which are purely biological, is emphasized. It is argued that there is an unavoidable component of myth-making in any consideration of the connection between neural circuitry and the domain of psychic representations. Freud's need for a notion of drive or energy, which is required to understand the findings of free-associative method, is admittedly mythematic, but it implies a major challenge to extant philosophical doctrines of the "mind/body" question (emergentism, double-aspect monism, and neutral monism). Thus, whereas psychoanalysis as praxis is, in Freud's words, "free to follow its own requirements," the claims of metapsychology are not so unrestrained. Further debate is required on the irrelevance of a revised objectivistic theory of the "mental apparatus" to the venture of healing the fracturing of our lived experience.

  13. Dot Display Affects Approximate Number System Acuity and Relationships with Mathematical Achievement and Inhibitory Control

    Science.gov (United States)

    Norris, Jade Eloise; Castronovo, Julie

    2016-01-01

    Much research has investigated the relationship between the Approximate Number System (ANS) and mathematical achievement, with continued debate surrounding the existence of such a link. The use of different stimulus displays may account for discrepancies in the findings. Indeed, closer scrutiny of the literature suggests that studies supporting a link between ANS acuity and mathematical achievement in adults have mostly measured the ANS using spatially intermixed displays (e.g. of blue and yellow dots), whereas those failing to replicate a link have primarily used spatially separated dot displays. The current study directly compared ANS acuity when using intermixed or separate dots, investigating how such methodological variation mediated the relationship between ANS acuity and mathematical achievement. ANS acuity was poorer and less reliable when measured with intermixed displays, with performance during both conditions related to inhibitory control. Crucially, mathematical achievement was significantly related to ANS accuracy difference (accuracy on congruent trials minus accuracy on incongruent trials) when measured with intermixed displays, but not with separate displays. The findings indicate that methodological variation affects ANS acuity outcomes, as well as the apparent relationship between the ANS and mathematical achievement. Moreover, the current study highlights the problem of low reliabilities of ANS measures. Further research is required to construct ANS measures with improved reliability, and to understand which processes may be responsible for the increased likelihood of finding a correlation between the ANS and mathematical achievement when using intermixed displays. PMID:27195749

  14. IL-9 signaling affects central nervous system resident cells during inflammatory stimuli.

    Science.gov (United States)

    Ding, Xiaoli; Cao, Fang; Cui, Langjun; Ciric, Bogoljub; Zhang, Guang-Xian; Rostami, Abdolmohamad

    2015-12-01

    Interleukin (IL) 9, a dominant cytokine in Th9 cells, has been proven to play a pathogenic role in experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis (MS), by augmenting T cell activation and differentiation; however, whether IL-9 signaling affects central nervous system (CNS)-resident cells during CNS autoimmunity remains unknown. In the present study, we found that the IL-9 receptor (IL-9R) was highly expressed in astrocytes, oligodendrocyte progenitor cells (OPCs), oligodendrocytes and microglia cells, and that its expression was significantly upregulated in brain and spinal cord during EAE. In addition, IL-9 increased chemokine expression, including CXCL9, CCL20 and MMP3, in primary astrocytes. Although IL-9 had no effect on the proliferation of microglia cells, it decreased OPC proliferation and differentiation when in combination with other pro-inflammatory cytokines, but not with IFN-γ. IL-9 plus IFN-γ promoted OPC proliferation and differentiation. These findings indicate that CNS-restricted IL-9 signaling may be involved in the pathogenesis of MS/EAE, thus providing a potential therapeutic target for future MS/EAE treatment through disruption of CNS cell-specific IL-9 signaling.

  15. Amygdala-prefrontal pathways and the dopamine system affect nociceptive responses in the prefrontal cortex

    Directory of Open Access Journals (Sweden)

    Onozawa Kitaro

    2011-11-01

    Full Text Available Abstract Background We previously demonstrated nociceptive discharges to be evoked by mechanical noxious stimulation in the prefrontal cortex (PFC. The nociceptive responses recorded in the PFC are conceivably involved in the affective rather than the sensory-discriminative dimension of pain. The PFC receives dense projection from the limbic system. Monosynaptic projections from the basolateral nucleus of the amygdala (BLA to the PFC are known to produce long-lasting synaptic plasticity. We examined effects of high frequency stimulation (HFS delivered to the BLA on nociceptive responses in the rat PFC. Results HFS induced long lasting suppression (LLS of the specific high threshold responses of nociceptive neurons in the PFC. Microinjection of N-methyl-D-aspartic acid (NMDA receptor antagonists (2-amino-5-phosphonovaleric acid (APV, dizocilpine (MK-801 and also metabotropic glutamate receptor (mGluR group antagonists (α-methyl-4-carboxyphenylglycine (MCPG, and 2-[(1S,2S-2-carboxycyclopropyl]-3-(9H-xanthen-9-yl-D-alanine (LY341495, prevented the induction of LLS of nociceptive responses. We also examined modulatory effects of dopamine (DA on the LLS of nociceptive responses. With depletion of DA in response to 6-hydroxydopamine (6-OHDA injection into the ipsilateral forebrain bundle, LLS of nociceptive responses was decreased, while nociceptive responses were normally evoked. Antagonists of DA receptor subtypes D2 (sulpiride and D4 (3-{[4-(4-chlorophenyl piperazin-1-yl] methyl}-1H-pyrrolo [2, 3-b] pyridine (L-745,870, microinjected into the PFC, inhibited LLS of nociceptive responses. Conclusions Our results indicate that BLA-PFC pathways inhibited PFC nociceptive cell activities and that the DA system modifies the BLA-PFC regulatory function.

  16. Fostering Critical Thinking in the Geosciences: Combining Geoethics, the Affective Domain, Metacognition, and Systems Thinking

    Science.gov (United States)

    Mogk, D. W.; Geissman, J. W.

    2015-12-01

    There is a compelling need to develop the geoscience workforce of the future to address the "grand challenges" that face humanity. This workforce must have a strong understanding of Earth history, processes and materials and be able to communicate effectively and responsibly to inform public policy and personal and societal actions, particularly with regard to geohazards and natural resources. Curricula to train future geoscientists must be designed to help students develop critical thinking skills across the curriculum, from introductory to senior capstone courses. Students will be challenged in their pre-professional training as geoscientists as they encounter an incomplete geologic record, ambiguity and uncertainty in observed and experimental results, temporal reasoning ("deep time", frequency, recurrence intervals), spatial reasoning (from microns to mountains), and complex system behavior. Four instructional approaches can be combined to address these challenges and help students develop critical thinking skills: 1) Geoethics and ethical decision making includes review and integration of the context/facts of the situation, stakeholders, decision-makers, and possible alternative actions and expected outcomes; 2) The affective domain which encompasses factors such as student motivation to learn, curiosity, fear, attitudes, perceptions, social barriers and values; 3) Metacognition which encourages students to be aware about their own thinking processes, and to develop self-monitoring and self-regulating behaviors; and 4) Systems thinking which requires integrative thinking about the interactions between physical, chemical, biological and human processes, feedback mechanisms and emergent phenomena. Guided inquiry and scaffolded exercises can be used to present increasingly complex situations that require a thorough understanding of geologic principles and processes as applied to issues of societal concern. These approaches are not "owned" by any single course or

  17. Evolution in totally constrained models: Schr\\"odinger vs. Heisenberg pictures

    CERN Document Server

    Olmedo, Javier

    2016-01-01

    We study the relation between two evolution pictures that are currently considered for totally constrained theories. Both descriptions are based on Rovelli's evolving constants approach, where one identifies a (possibly local) degree of freedom of the system as an internal time. This method is well understood classically in several situations. The purpose of this manuscript is to further analyze this approach at the quantum level. Concretely, we will compare the (Schr\\"odinger-like) picture where the physical states evolve in time with the (Heisenberg-like) picture in which one defines parametrized observables (or evolving constants of the motion). We will show that in the particular situations considered in this manuscript (the parametrized relativistic particle and a spatially flat homogeneous and isotropic spacetime coupled to a massless scalar field) both descriptions are equivalent. We will finally comment on possible issues and on the genericness of the equivalence between both pictures.

  18. Are fish immune systems really affected by parasites? an immunoecological study of common carp (Cyprinus carpio

    Directory of Open Access Journals (Sweden)

    Flajšhans Martin

    2011-06-01

    Full Text Available Abstract Background The basic function of the immune system is to protect an organism against infection in order to minimize the fitness costs of being infected. According to life-history theory, energy resources are in a trade-off between the costly demands of immunity and other physiological demands. Concerning fish, both physiology and immunity are influenced by seasonal changes (i.e. temporal variation associated to the changes of abiotic factors (such as primarily water temperature and interactions with pathogens and parasites. In this study, we investigated the potential associations between the physiology and immunocompetence of common carp (Cyprinus carpio collected during five different periods of a given year. Our sampling included the periods with temporal variability and thus, it presented a different level in exposure to parasites. We analyzed which of two factors, seasonality or parasitism, had the strongest impact on changes in fish physiology and immunity. Results We found that seasonal changes play a key role in affecting the analyzed measurements of physiology, immunity and parasitism. The correlation analysis revealed the relationships between the measures of overall host physiology, immunity and parasite load when temporal variability effect was removed. When analyzing separately parasite groups with different life-strategies, we found that fish with a worse condition status were infected more by monogeneans, representing the most abundant parasite group. The high infection by cestodes seems to activate the phagocytes. A weak relationship was found between spleen size and abundance of trematodes when taking into account seasonal changes. Conclusions Even if no direct trade-off between the measures of host immunity and physiology was confirmed when taking into account the seasonality, it seems that seasonal variability affects host immunity and physiology through energy allocation in a trade-off between life important

  19. The AGL equation from the dipole picture

    CERN Document Server

    Gay-Ducati, M B

    1999-01-01

    The AGL equation includes all multiple pomeron exchanges in the double logarithmic approximation (DLA) limit, leading to an unitarized gluon distribution in the small x regime. This equation was originally obtained using the Glauber-Mueller approach. We demonstrate in this paper that the AGL equation and, consequently, the GLR equation, can also be obtained from the dipole picture in the double logarithmic limit, using an evolution equation, recently proposed, which includes all multiple pomeron exchanges in the leading logarithmic approximation. Our conclusion is that the AGL equation is a good candidate for an unitarized evolution equation at small x in the DLA limit.

  20. Numb and Alzheimer's Disease: The Current Picture.

    Directory of Open Access Journals (Sweden)

    Dimitrios eNtelios

    2012-10-01

    Full Text Available Twenty three years ago, numb was identified as a critical regulator in Drosophila sensory organ precursor cell asymmetric divisions. Beyond the recently recognized role in carcinogenesis, Numb seems to be important in Alzheimer’s disease. This assertion comes from the involvement in various processes such as synapse morphogenesis, APP trafficking, notch signaling and neurogenesis. The purpose of the present mini-review is to provide the current picture of Numb’s participation in mechanisms underlying Alzheimer’s disease pathogenesis and emphasize potential aspects for future research.

  1. Java EE 7 the big picture

    CERN Document Server

    Coward, Danny

    2015-01-01

    Java EE 7: The Big Picture uniquely explores the entire Java EE 7 platform in an all-encompassing style while examining each tier of the platform in enough detail so that you can select the right technologies for specific project needs. In this authoritative guide, Java expert Danny Coward walks you through the code, applications, and frameworks that power the platform. Take full advantage of the robust capabilities of Java EE 7, increase your productivity, and meet enterprise demands with help from this Oracle Press resource.

  2. The AGL equation from the dipole picture

    International Nuclear Information System (INIS)

    The AGL equation includes all multiple pomeron exchanges in the double logarithmic approximation (DLA) limit, leading to a unitarized gluon distribution in the small x regime. This equation was originally obtained using the Glauber-Mueller approach. We demonstrate in this paper that the AGL equation and, consequently, the GLR equation, can also be obtained from the dipole picture in the double logarithmic limit, using an evolution equation, recently proposed, which includes all multiple pomeron exchanges in the leading logarithmic approximation. Our conclusion is that the AGL equation is a good candidate for a unitarized evolution equation at small x in the DLA limit

  3. Venus in motion. [Mariner 10 television pictures

    Science.gov (United States)

    Anderson, J. L.; Danielson, G. E.; Evans, N.; Soha, J. M.; Belton, M. J. S.

    1978-01-01

    A comprehensive set of television pictures of Venus taken by the Mariner 10 spacecraft is presented. Included is a chronological sequence of television images illustrating the development, variety, and circulation of Venus upper-atmospheric phenomena as viewed in the near-ultraviolet. The higher-resolution images have been assembled into global mosaics to facilitate comparison. Figures and tables describing the imaging sequences have been included to provide a guide to the more complete set of 3400 Venus images on file at the National Space Science Data Center.

  4. The picture of an ideal CEO body

    OpenAIRE

    Martikainen, Tiina

    2015-01-01

    The picture of the modern day CEO and his/her body can be seen plastered around various forms of media ranging from magazine covers to internet news sites. It is easy to visualize the late Steve Jobs in his pullover and faded jeans, Richard Branson with his flowing blond hair or Warren Buffet in his suit and white shirt. However, what makes a certain body ideal for a CEO is less easy to imagine. Previous research has concentrated on finding a certain quantifiable ideal such as the ideal heigh...

  5. 29 CFR 541.709 - Motion picture producing industry.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Motion picture producing industry. 541.709 Section 541.709... SALES EMPLOYEES Definitions and Miscellaneous Provisions § 541.709 Motion picture producing industry... motion picture producing industry who is compensated at a base rate of at least $695 a week (exclusive...

  6. The Development of the Picture-Superiority Effect

    Science.gov (United States)

    Whitehouse, Andrew J. O.; Maybery, Murray T.; Durkin, Kevin

    2006-01-01

    When pictures and words are presented serially in an explicit memory task, recall of the pictures is superior. While this effect is well established in the adult population, little is known of the development of this picture-superiority effect in typical development. This task was administered to 80 participants from middle childhood to…

  7. Memory for Pictorial Information and the Picture Superiority Effect.

    Science.gov (United States)

    Maisto, Albert A.; Queen, Debbie Elaine

    1992-01-01

    The performance of 53 younger adults (mean age 20.7) and 52 older adults (mean age 68.3) was compared in a memory task involving pictures, words, and pictures-plus-words. Results showed (1) significantly higher recall scores for younger adults; (2) equivalent picture superiority effect for both groups; and (3) decline in older adults' performance…

  8. 50 CFR 27.71 - Motion or sound pictures.

    Science.gov (United States)

    2010-10-01

    ... provisions of 43 CFR part 5. ... 50 Wildlife and Fisheries 6 2010-10-01 2010-10-01 false Motion or sound pictures. 27.71 Section 27... Equipment § 27.71 Motion or sound pictures. The taking or filming of any motion or sound pictures on...

  9. 78 FR 57570 - Safety Zone; Motion Picture Production; Chicago, Illinois

    Science.gov (United States)

    2013-09-19

    ... Safety Zone; Motion Picture Production; Chicago, IL (78 FR 20241, August 20, 2013). This updated schedule... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Motion Picture Production; Chicago... will enforce the temporary safety zone for motion picture filming in Calumet Harbor, Chicago, IL from...

  10. Predicting naming latencies for action pictures: Dutch norms.

    Science.gov (United States)

    Shao, Zeshu; Roelofs, Ardi; Meyer, Antje S

    2014-03-01

    The present study provides Dutch norms for age of acquisition, familiarity, imageability, image agreement, visual complexity, word frequency, and word length (in syllables) for 124 line drawings of actions. Ratings were obtained from 117 Dutch participants. Word frequency was determined on the basis of the SUBTLEX-NL corpus (Keuleers, Brysbaert, & New, Behavior Research Methods, 42, 643-650, 2010). For 104 of the pictures, naming latencies and name agreement were determined in a separate naming experiment with 74 native speakers of Dutch. The Dutch norms closely corresponded to the norms for British English. Multiple regression analysis showed that age of acquisition, imageability, image agreement, visual complexity, and name agreement were significant predictors of naming latencies, whereas word frequency and word length were not. Combined with the results of a principal-component analysis, these findings suggest that variables influencing the processes of conceptual preparation and lexical selection affect latencies more strongly than do variables influencing word-form encoding.

  11. From a Perspective on Foreign Language Learning Anxiety to Develop an Affective Tutoring System

    Science.gov (United States)

    Lin, Hao-Chiang Koong; Chao, Ching-Ju; Huang, Tsu-Ching

    2015-01-01

    According to Krashen's affective filter hypothesis, students who are highly motivated have their self-consciousness. When they enter a learning context with a low level of anxiety, they are much more likely to become successful language acquirers than those who do not. Affective factors such as motivation, attitude, and anxiety, have a direct…

  12. Lynch syndrome: still not a familiar picture

    Directory of Open Access Journals (Sweden)

    Hes Frederik J

    2008-02-01

    Full Text Available Abstract Background Germ line mutations in mismatch repair genes underlie Lynch syndrome and predispose carriers for colorectal carcinoma and malignancies in many other organ systems. Case presentation A large Lynch syndrome family with 15 affected family members and involvement in 7 organs is reported. It illustrates a lack of awareness and knowledge about this hereditary tumor syndrome among doctors as well as patients. None of the described family members underwent presymptomatic screening on the basis of the family history. Conclusion Hereditary features, like young age at diagnosis, multiple tumors in multiple organs and a positive family history, should lead to timely referral of suspected cases for genetic counseling and diagnostics. For Lynch syndrome, these features can be found in the Amsterdam and Bethesda criteria. Subsequently, early identification of mutation carriers might have diminished, at least in part, the high and early morbidity and mortality observed in this family.

  13. Aerial-image enables diagrams and animation to be inserted in motion pictures

    Science.gov (United States)

    Andrews, S. J., Jr.; Tressel, G. W.

    1967-01-01

    Aerial-image unit makes it possible to insert diagrams and animation into live motion pictures, and also lift an element from a confusing background by suppressing general details. The unit includes a combination of two separate lens systems, the camera-projector system and the field lens system.

  14. MENINGKATKAN HASIL BELAJAR BAHASA INDONESIA SISWA KELAS IV SDN 020 TARAKAN MELALUI PEMBELAJARAN KOOPERATIF MODEL PICTURE AND PICTURE

    OpenAIRE

    Sumiyartini

    2011-01-01

    SUMIYARTINI, 2011. Improving Student Learning Outcomes Indonesian SDN 020 Class IV Tarakan Through Cooperative Learning Model Picture And Picture. Supervised by: (1) Zulkifli, M. Pd, and (2) Drs. Herdiansyah, M.Si. The issue presented in this study is "How can learn Indonesian achievement by using the methods of cooperative learning model Picture in Picture and fourth grade students of SDN 020 City of Tarakan". The purpose of this study is to know the improvement of Indonesian students' learn...

  15. Somatic influences on subjective well-being and affective disorders: the convergence of thermosensory and central serotonergic systems.

    Science.gov (United States)

    Raison, Charles L; Hale, Matthew W; Williams, Lawrence E; Wager, Tor D; Lowry, Christopher A

    2014-01-01

    Current theories suggest that the brain is the sole source of mental illness. However, affective disorders, and major depressive disorder (MDD) in particular, may be better conceptualized as brain-body disorders that involve peripheral systems as well. This perspective emphasizes the embodied, multifaceted physiology of well-being, and suggests that afferent signals from the body may contribute to cognitive and emotional states. In this review, we focus on evidence from preclinical and clinical studies suggesting that afferent thermosensory signals contribute to well-being and depression. Although thermoregulatory systems have traditionally been conceptualized as serving primarily homeostatic functions, increasing evidence suggests neural pathways responsible for regulating body temperature may be linked more closely with emotional states than previously recognized, an affective warmth hypothesis. Human studies indicate that increasing physical warmth activates brain circuits associated with cognitive and affective functions, promotes interpersonal warmth and prosocial behavior, and has antidepressant effects. Consistent with these effects, preclinical studies in rodents demonstrate that physical warmth activates brain serotonergic neurons implicated in antidepressant-like effects. Together, these studies suggest that (1) thermosensory pathways interact with brain systems that control affective function, (2) these pathways are dysregulated in affective disorders, and (3) activating warm thermosensory pathways promotes a sense of well-being and has therapeutic potential in the treatment of affective disorders. PMID:25628593

  16. Somatic influences on subjective well-being and affective disorders: the convergence of thermosensory and central serotonergic systems

    Directory of Open Access Journals (Sweden)

    Charles L Raison

    2015-01-01

    Full Text Available Current theories suggest that the brain is the sole source of mental illness. However, affective disorders, and major depressive disorder (MDD in particular, may be better conceptualized as brain-body disorders that involve peripheral systems as well. This perspective emphasizes the embodied, multifaceted physiology of well-being, and suggests that afferent signals from the body may contribute to cognitive and emotional states. In this review, we focus on evidence from preclinical and clinical studies suggesting that afferent thermosensory signals contribute to well-being and depression. Although thermoregulatory systems have traditionally been conceptualized as serving primarily homeostatic functions, increasing evidence suggests neural pathways responsible for regulating body temperature may be linked more closely with emotional states than previously recognized, an affective warmth hypothesis. Human studies indicate that increasing physical warmth activates brain circuits associated with cognitive and affective functions, promotes interpersonal warmth and prosocial behaviour, and has antidepressant effects. Consistent with these effects, preclinical studies in rodents demonstrate that physical warmth activates brain serotonergic neurons implicated in antidepressant-like effects. Together, these studies suggest that 1 thermosensory pathways interact with brain systems that control affective function, 2 these pathways are dysregulated in affective disorders, and 3 activating warm thermosensory pathways promotes a sense of well-being and has therapeutic potential in the treatment of affective disorders.

  17. Somatic influences on subjective well-being and affective disorders: the convergence of thermosensory and central serotonergic systems.

    Science.gov (United States)

    Raison, Charles L; Hale, Matthew W; Williams, Lawrence E; Wager, Tor D; Lowry, Christopher A

    2014-01-01

    Current theories suggest that the brain is the sole source of mental illness. However, affective disorders, and major depressive disorder (MDD) in particular, may be better conceptualized as brain-body disorders that involve peripheral systems as well. This perspective emphasizes the embodied, multifaceted physiology of well-being, and suggests that afferent signals from the body may contribute to cognitive and emotional states. In this review, we focus on evidence from preclinical and clinical studies suggesting that afferent thermosensory signals contribute to well-being and depression. Although thermoregulatory systems have traditionally been conceptualized as serving primarily homeostatic functions, increasing evidence suggests neural pathways responsible for regulating body temperature may be linked more closely with emotional states than previously recognized, an affective warmth hypothesis. Human studies indicate that increasing physical warmth activates brain circuits associated with cognitive and affective functions, promotes interpersonal warmth and prosocial behavior, and has antidepressant effects. Consistent with these effects, preclinical studies in rodents demonstrate that physical warmth activates brain serotonergic neurons implicated in antidepressant-like effects. Together, these studies suggest that (1) thermosensory pathways interact with brain systems that control affective function, (2) these pathways are dysregulated in affective disorders, and (3) activating warm thermosensory pathways promotes a sense of well-being and has therapeutic potential in the treatment of affective disorders.

  18. Systemic injection of kainic acid differently affects LTP magnitude depending on its epileptogenic efficiency.

    Directory of Open Access Journals (Sweden)

    Luz M Suárez

    Full Text Available Seizures have profound impact on synaptic function and plasticity. While kainic acid is a popular method to induce seizures and to potentially affect synaptic plasticity, it can also produce physiological-like oscillations and trigger some forms of long-term potentiation (LTP. Here, we examine whether induction of LTP is altered in hippocampal slices prepared from rats with different sensitivity to develop status epilepticus (SE by systemic injection of kainic acid. Rats were treated with multiple low doses of kainic acid (5 mg/kg; i.p. to develop SE in a majority of animals (72-85% rats. A group of rats were resistant to develop SE (15-28% after several accumulated doses. Animals were subsequently tested using chronic recordings and object recognition tasks before brain slices were prepared for histological studies and to examine basic features of hippocampal synaptic function and plasticity, including input/output curves, paired-pulse facilitation and theta-burst induced LTP. Consistent with previous reports in kindling and pilocapine models, LTP was reduced in rats that developed SE after kainic acid injection. These animals exhibited signs of hippocampal sclerosis and developed spontaneous seizures. In contrast, resistant rats did not become epileptic and had no signs of cell loss and mossy fiber sprouting. In slices from resistant rats, theta-burst stimulation induced LTP of higher magnitude when compared with control and epileptic rats. Variations on LTP magnitude correlate with animals' performance in a hippocampal-dependent spatial memory task. Our results suggest dissociable long-term effects of treatment with kainic acid on synaptic function and plasticity depending on its epileptogenic efficiency.

  19. Exploring the influence of the Global Fund and the GAVI Alliance on health systems in conflict-affected countries.

    OpenAIRE

    Patel, P.; Cummings, R.; Roberts, B.

    2015-01-01

    Background Global Health Initiatives (GHIs) respond to high-impact communicable diseases in resource-poor countries, including health systems support, and are major actors in global health. GHIs could play an important role in countries affected by armed conflict given these countries commonly have weak health systems and a high burden of communicable disease. The aim of this study is to explore the influence of two leading GHIs, the Global Fund and the GAVI Alliance, on the health systems of...

  20. A bilocal picture of quantum mechanics

    International Nuclear Information System (INIS)

    A new, bilocal picture of quantum mechanics is developed. We show that Born’s rule supports a virtual probability for a particle to arrive, as a wave, at any two locations (but no more). We discuss two ways to implement twin detectors suitable for detecting bilocal arrivals. The bilocal picture sheds light on currents in quantum mechanics. We find there are two types of bilocal current density, whose polar form and related mean velocities are given. In the bilocal context, the definitions of both current types simplify. In the unilocal case, the two types become the usual current and a fluctuation current. Their respective mean velocity fields are the usual de Broglie–Madelung–Bohm velocity and the imaginary (osmotic) velocity. We obtain a new, probabilistic Schrödinger equation for the bilocal probability by itself, solve the example of a free particle, develop the dyadic stationary states, and find that the von Neumann equation for time-varying density of states follows directly from the new equation. We also show how to include the electromagnetic potentials in this probabilistic Schrödinger equation. (paper)

  1. How the Structure of Mesoscale Precipitation Systems Affects their Production of Transient Luminous Events

    Science.gov (United States)

    Lang, T. J.; Lyons, W.; Rutledge, S. A.; Cummer, S. A.; MacGorman, D. R.

    2011-12-01

    Recently, Lang et al. (2010) analyzed the parent lightning of transient luminous events (TLEs) in the context of the structure and evolution of two mesoscale convective systems (MCSs). These two MCSs were very different - one a giant symmetric leading-line/trailing stratiform storm, and one a small asymmetric MCS that contained a mesoscale convective vortex. These structural differences were associated with substantially different TLE-parent lightning structure as well as TLE production. The results suggested that TLE (especially sprite) production, and TLE-parent positive charge altitude, depend on MCS morphology. Current work is focused on analyzing the structure, evolution, lightning behavior, and TLE production of additional MCSs over various regions of the United States. Several additional TLE-producing MCS cases already have been identified for the years 2008-2010, featuring a variety of organizational modes (symmetric, asymmetric, and other more exotic varieties) in different meteorological regimes (including some cold-season cases). More cases will be incorporated as they occur and are observed. Data sources include geostationary satellite imagery, Doppler radar, three-dimensional lightning mapping networks, ground-strike detection networks, charge moment change measurements, and low-light video observations. The ultimate goal is to further test the hypothesis that MCS structure affects TLE production, and if so to quantify its impact. Research on two Oklahoma case studies, a multicellular system that occurred on 24 March 2009 and a classic bow-echo MCS that occurred on 19 August 2009, is ongoing. Over a 2.5-h period, the March case produced 23 observed TLEs (all sprites) whose parent flashes occurred within 175 km of the Oklahoma Lightning Mapping Array (OKLMA). The median altitude of LMA sources during the TLEs was 5.9 km above Mean Sea Level (MSL), or -19.2 °C. The August storm produced, in 2.5 hours, 34 TLEs (all sprites) with 32 of those having parent

  2. Factors that affect the use of herbicides in Philippine rice farming systems

    OpenAIRE

    Beltran, Jesusa C.; David J. Pannell; Doole, Graeme J.; White, Benedict

    2011-01-01

    This study involves the application of a random-effects double-hurdle model to survey data to identify the farm-level factors affecting the adoption and intensity of herbicide use in rice production in the Philippines. Results broadly indicate apparent differences in the degree to which important explanatory variables affect the intensity and adoption decisions. The age of the farmer, household size, and irrigation are the significant predictors influencing the decision of farmers to use herb...

  3. Pictures from Year Two CNEC and CVT Measurements

    Energy Technology Data Exchange (ETDEWEB)

    Hutchinson, Jesson D. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Bahran, Rian Mustafa [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); McKenzie, George Espy [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Cutler, Theresa Elizabeth [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-08-30

    Below are all of the pictures for the CNEC and CVT measurements performed at the DAF in July 2016. In total there are 165 pictures. The photos on pages 2-105 were taken during the first week of measurements and the photos on pages 106-165 were taken during the second week of measurements. Many photos are applicable to both sets, which is why it is best to keep the entire set together. For most configurations, a description of the configuration was written on a white board; photos of the measurement setup were taken, then a photo of the white board was taken. For example, the pictures on pages 6-19 (which precede a white board picture on page 20) are of the configuration with Rocky Flats Shells 1-2 surrounded by 4 AmLi sources, which is listed on the white board picture on page 20. In some cases, the white board picture precedes the configuration pictures.

  4. Testing the Snake-Detection hypothesis : Larger early posterior negativity in humans to pictures of snakes than to pictures of other reptiles, spiders and slugs

    NARCIS (Netherlands)

    van Strien, Jan W.; Franken, Ingmar H A; Huijding, Jorg

    2014-01-01

    According to the snake detection hypothesis (Isbell, 2006), fear specifically of snakes may have pushed evolutionary changes in the primate visual system allowing pre-attentional visual detection of fearful stimuli. A previous study demonstrated that snake pictures, when compared to spiders or bird

  5. Revisiting the picture-superiority effect in symbolic comparisons: do pictures provide privileged access?

    Science.gov (United States)

    Amrhein, Paul C; McDaniel, Mark A; Waddill, Paula

    2002-09-01

    In 4 experiments, symbolic comparisons were investigated to test semantic-memory retrieval accounts espousing processing advantages for picture over word stimuli. In Experiment 1, participants judged pairs of animal names or pictures by responding to questions probing concrete or abstract attributes (texture or size, ferocity or intelligence). Per pair, attributes were salient or nonsalient concerning their prerated relevance to animals being compared. Distance (near or far) between attribute magnitudes was also varied. Pictures did not significantly speed responding relative to words across all other variables. Advantages were found forfar attribute magnitudes (i.e., the distance effect) and salient attributes. The distance effect was much less for salient than nonsalient concrete-attribute comparisons. These results were consistently found in additional experiments with increased statistical power to detect modality effects. Our findings argue against dual-coding and some common-code accounts of conceptual attribute processing, urging reexamination of the assumption that pictures confer privileged access to long-term knowledge. PMID:12219794

  6. Motion Pictures and Motion-Picture Equipment: A Handbook of General Information. Bulletin, 1919, No. 82

    Science.gov (United States)

    Reynolds, F. W.; Anderson, Carl

    1920-01-01

    Motion-picture films have come to be recognized quite generally as a valuable and practical means of instruction in schools, college, and universities and for clubs and societies organized for educational purposes. The number of persons making such use of them is now very large and constantly becoming larger. To all these, a handbook of general…

  7. Lack of sleep affects the evaluation of emotional stimuli.

    Science.gov (United States)

    Tempesta, Daniela; Couyoumdjian, Alessandro; Curcio, Giuseppe; Moroni, Fabio; Marzano, Cristina; De Gennaro, Luigi; Ferrara, Michele

    2010-04-29

    Sleep deprivation (SD) negatively affects various cognitive performances, but surprisingly evidence about a specific impact of sleep loss on subjective evaluation of emotional stimuli remains sparse. In the present study, we assessed the effect of SD on the emotional rating of standardized visual stimuli selected from the International Affective Picture System. Forty university students were assigned to the sleep group (n=20), tested before and after one night of undisturbed sleep at home, or to the deprivation group, tested before and after one night of total SD. One-hundred and eighty pictures (90 test, 90 retest) were selected and categorized as pleasant, neutral and unpleasant. Participants were asked to judge their emotional reactions while viewing pictures by means of the Self-Assessment Manikin. Subjective mood ratings were also obtained by means of Visual Analog Scales. No significant effect of SD was observed on the evaluation of pleasant and unpleasant stimuli. On the contrary, SD subjects perceived the neutral pictures more negatively and showed an increase of negative mood and a decrease of subjective alertness compared to non-deprived subjects. Finally, an analysis of covariance on mean valence ratings of neutral pictures using negative mood as covariate confirmed the effect of SD. Our results indicate that sleep is involved in regulating emotional evaluation. The emotional labeling of neutral stimuli biased toward negative responses was not mediated by the increase of negative mood. This effect can be interpreted as an adaptive reaction supporting the "better safe than sorry" principle. It may also have applied implications for healthcare workers, military and law-enforcement personnel. PMID:20117179

  8. Dwarfism and gigantism in historical picture postcards.

    Science.gov (United States)

    Enderle, A

    1998-05-01

    A collection of 893 historical picture postcards from 1900 to 1935, depicting dwarfs and giants, was analysed from medical and psychosocial viewpoints. In conditions such as 'bird headed dwarfism', achondroplasia, cretinism, so-called Aztecs or pinheads, Grebe chondrodysplasia, and acromegalic gigantism, the disorder could be diagnosed easily. In hypopituitary dwarfism, exact diagnosis was more difficult because of heterogeneity. The most common conditions depicted were pituitary dwarfism and achondroplasia. Most of those with gigantism had pituitary gigantism and acromegaly. Brothers and sisters or parents and their children provided evidence of mendelian inheritance of some of these disorders. The cards suggest that being put on show provided, at least in some cases, social benefits. PMID:9764085

  9. A picture of the moon's atmosphere

    Science.gov (United States)

    Flynn, B.; Mendillo, M.

    1993-07-01

    Atomic sodium is a useful tracer of the tenuous lunar atmosphere because of its high efficiency in scattering sunlight at the D1 (5896 angstroms) and D2 (5890 angstroms) wavelengths. In 1988, Earth-based instruments revealed the presence of sodium at a density of less than 50 atoms per cubic centimeter at lunar altitudes below 100 kilometers. Telescopic observations that are made with a coronograph technique to block out the disk of the moon allow a true picture of the circumlunar atmosphere to be obtained and show the presence of sodium out to a distance of several lunar radii. The distribution of sodium has a solar zenith angle dependence, suggesting that most of the sodium that reaches great altitudes is liberated from the moon's surface by solar photons (by heating or sputtering) or by solar wind impact, in contrast to a source driven by uniform micrometeor bombardment.

  10. Random Walk Picture of Basketball Scoring

    CERN Document Server

    Gabel, Alan

    2011-01-01

    We present evidence, based on play-by-play data from all 6087 games from the 2006/07--2009/10 seasons of the National Basketball Association (NBA), that basketball scoring is well described by a weakly-biased continuous-time random walk. The time between successive scoring events follows an exponential distribution, with little memory between different scoring intervals. Using this random-walk picture that is augmented by features idiosyncratic to basketball, we account for a wide variety of statistical properties of scoring, such as the distribution of the score difference between opponents and the fraction of game time that one team is in the lead. By further including the heterogeneity of team strengths, we build a computational model that accounts for essentially all statistical features of game scoring data and season win/loss records of each team.

  11. [The clinical picture of gout is changing].

    Science.gov (United States)

    Julkunen, Heikki; Konttinen, Yrjö T

    2010-01-01

    The prevalence of gout in the western countries is 1-2%. The disease has become more common during the last two decades, and the same time its clinical picture has changed. The disease is often polyarticular, the patients are older than before and they have more often associated cardiovascular diseases and renal insufficiency. Effective treatment of acute gout is nonsteroidal anti-inflammatory drugs with intra-articular or systematic corticosteroids. The goal for the treatment of intermittent and chronic gout is to maintain serum urate concentration velow 360 micromol/l by diet and by antihyperuricemic meditation, primarly allopurinole and probenecid. Febuxostat is a new xanthine oxidase inhibitor, which will be available for the treatment of refractory gout in the near future. Special attention should be paid on detecting and treating cardiovascular diseases and their risk factors in patients with gout.

  12. A New Evolutionary Picture for CVs and LMXBs

    CERN Document Server

    King, A R; King, Andrew R.; Schenker, Klaus

    2001-01-01

    We consider an alternative to the standard picture of CV and LMXB evolution, namely the idea that most CVs (and by extension LMXBs) may not yet have had time to evolve to their theoretical minimum orbital periods. We call this the Binary Age Postulate (BAP). The observed short-period cutoff in the CV histogram emerges naturally as the shortest period yet reached in the age of the Galaxy, while the post-minimum-period space density problem is removed. The idea has similar desirable consequences for LMXBs. In both cases systems with nuclear-evolved secondary stars form a prominent part of the short-period distributions. Properties such as the existence and nature of ultrashort-period systems, and the spread in mass transfer rates at a given orbital period, are naturally reproduced.

  13. Picture quality under aspects of physiology and diagnostics

    International Nuclear Information System (INIS)

    Demonstration of parameters important for diagnosis, their detection and correct evaluation are decisive factors for the diagnostic value of an X-ray examination. Correct choice and co-ordination of the technical and physical parameters will allow to obtain a demonstration of the critical picture structures which can be clearly recognized and are conspicuous visually. Fine adjustment to the object and possible imaging of diagnosis- relevant structures is effected by matching the individual components of the imaging system, in particular radiograph voltage, radiation quality, radiation dose, proportion of scattered radiation, screen type, film properties, developer, film processing and conditions of interpretation. A great number of examinations testify to the fact that this approach results in an improvement of diagnostic statements. The author briefly lists the quality parameters for various basic examinations, viz. radiography of the chest, skeleton, skull, paranasal sinus, spine, urinary system, biliary tract, stomach, large intestine and mammary gland. (orig./MG)

  14. Enhanced Geothermal Systems Research and Development: Models of Subsurface Chemical Processes Affecting Fluid Flow

    Energy Technology Data Exchange (ETDEWEB)

    Moller, Nancy; Weare J. H.

    2008-05-29

    /or injected fluids is critical to predict important chemical behaviors affecting fluid flow, such as mineral precipitation/dissolution reactions. We successfully achieved the project goal and objectives by demonstrating the ability of our modeling technology to correctly predict the complex pH dependent solution chemistry of the Al3+ cation and its hydrolysis species: Al(OH)2+, Al(OH)2+, Al(OH)30, and Al(OH)4- as well as the solubility of common aluminum hydroxide and aluminosilicate minerals in aqueous brines containing components (Na, K, Cl) commonly dominating hydrothermal fluids. In the sodium chloride system, where experimental data for model parameterization are most plentiful, the model extends to 300°C. Determining the stability fields of aluminum species that control the solubility of aluminum-containing minerals as a function of temperature and composition has been a major objective of research in hydrothermal chemistry.

  15. Factors affecting acceptance of web-based training system: Using extended UTAUT and structural equation modeling

    CERN Document Server

    Alrawashdeh, Thamer A; Alqatawnah, Sokyna M

    2012-01-01

    Advancement in information system leads organizations to apply e-learning system to train their employees in order to enhance its performance. In this respect, applying web based training will enable the organization to train their employees quickly, efficiently and effectively anywhere at any time. This research aims to extend Unified Theory of Acceptance and Use Technology (UTAUT) using some factors such flexibility of web based training system, system interactivity and system enjoyment, in order to explain the employees' intention to use web based training system. A total of 290 employees have participated in this study. The findings of the study revealed that performance expectancy, facilitating conditions, social influence and system flexibility have direct effect on the employees' intention to use web based training system, while effort expectancy, system enjoyment and system interactivity have indirect effect on employees' intention to use the system.

  16. An evaluation of a monitoring system intervention: falls, injuries, and affect in nursing homes.

    Science.gov (United States)

    Holmes, Douglas; Teresi, Jeanne A; Ramirez, Mildred; Ellis, Julie; Eimicke, Joseph; Jian Kong; Orzechowska, Lucja; Silver, Stephanie

    2007-11-01

    This project assessed the extent to which modern technology (Vigil) can augment or substitute for direct staff intervention in nonacute late-evening and nighttime situations in a nursing home setting. Vigil was implemented for dementia residents of a special care unit (SCU) in a large nursing home. An SCU matched in terms of unit-wide case mix and cognition was used for comparison. Results showed that there was no significant reduction in falls and injuries, but there was a significant improvement in affective disorder in the intervention group as contrasted with the comparison group. There was no significant increase in staff-perceived burden, despite the significant increase in the amount of direct care time logged. Additional time spent in staff care was significantly related to decreased affective disorder. The findings related to Vigil are generally mixed. The question remains as to whether the improvement in affect was due to Vigil or vigilance.

  17. Isolated Isoflavones do not affect the circulating insulin-like growth factor system in men at increased colorectal cancer risk

    NARCIS (Netherlands)

    Vrieling, A.; Rookus, M.A.; Kampman, E.; Bonfrer, J.M.G.; Korse, C.M.; Doorn, van J.; Lampe, J.W.; Cats, A.; Witteman, B.J.M.; Leeuwen, van F.E.; van't Veer, L.J.; Voskuil, D.W.

    2007-01-01

    Epidemiological studies show that increased insulin-like growth factor (IGF)-I concentrations are related to increased colorectal cancer risk. A reduced colorectal cancer risk has been associated with isoflavones, which might affect the IGF-system because of their weak estrogenic activity. We conduc

  18. Isolated isoflavones do not affect the circulating insulin-like growth factor system in men at increased colorectal cancer risk.

    NARCIS (Netherlands)

    Vrieling, A.; Rookus, M.A.; Kampman, E.; Bonfrer, J.M.G.; Korse, C.M.; Doorn, J. van; Lampe, J.W.; Cats, A.; Witteman, B.J.M.; Leeuwen, F.E. van; Veer, L.J. van 't; Voskuil, D.W.

    2007-01-01

    Epidemiological studies show that increased insulin-like growth factor (IGF)-I concentrations are related to increased colorectal cancer risk. A reduced colorectal cancer risk has been associated with isoflavones, which might affect the IGF-system because of their weak estrogenic activity. We conduc

  19. Selection pressure, cropping system and rhizosphere proximity affect atrazine degrader populations and activity in s-triazine adapted soil

    Science.gov (United States)

    Atrazine degrader populations and activity in s-triazine adapted soils are likely affected by interactions among and (or) between s-triazine application frequency, crop production system, and proximity to the rhizosphere. A field study was conducted on an s-triazine adapted soil to determine the ef...

  20. The validity of the DSM-IV diagnostic classification system of non-affective psychoses

    NARCIS (Netherlands)

    Korver-Nieberg, Nikie; Quee, Piotr J.; Boos, Heleen B.; Simons, Claudia J.

    2011-01-01

    Objective: The schizophrenia and other non-affective disorders categories listed in the DSM-IV, are currently under revision for the development of the fifth edition. The aim of the present study is to demonstrate the validity of these categories by investigating possible differences between diagnos

  1. Human visceral leishmaniasis: a picture from Italy.

    Science.gov (United States)

    Abdalmaula, Giuma Harun; Barbadoro, Pamela; Marigliano, Anna; Illuminati, Diego; Di Stanislao, Francesco; D'Errico, Marcello Mario; Prospero, Emilia

    2013-12-01

    The aim of our study was to describe the distribution of Visceral Leishmaniasis (VL) in Italy, focusing on HIV-infected patients, to estimate the burden of the disease and the public health actions that should be undertaken. A review of official notifications and hospitalization data has been performed. From 2006 to 2008, a total of 289 cases of VL were notified; the overall notification rate was 1.63/1,000,000 (95% CI 1.45-1.83). In total, 1192 VL-associated hospitalizations were detected, with a hospitalization rate of 6.71/1,000,000 (95% CI 6.34-7.10). For the age group "≤ 24 years", a statistically significant increase was detected (p<0.05). A total of 68.9% (n = 821) of hospitalizations were detected in HIV-positive patients. The geographic distribution of rates revealed a significant increase in the north-eastern area of the country. Our study confirms that the epidemiological pattern of VL is changing and that, in Italy, control measures and preventive strategies should be based on not only the official notification system but also hospital data. This would lead to the identification of areas of parasite spread and to the creation of awareness campaigns geared toward general practitioners in the affected areas. Easy case detection would allow for timely public health actions and strategies for the implementation of more effective interventions for reservoir control. PMID:23999330

  2. The application of holography as a real-time three-dimensional motion picture camera

    Science.gov (United States)

    Kurtz, R. L.

    1973-01-01

    A historical introduction to holography is presented, as well as a basic description of sideband holography for stationary objects. A brief theoretical development of both time-dependent and time-independent holography is also provided, along with an analytical and intuitive discussion of a unique holographic arrangement which allows the resolution of front surface detail from an object moving at high speeds. As an application of such a system, a real-time three-dimensional motion picture camera system is discussed and the results of a recent demonstration of the world's first true three-dimensional motion picture are given.

  3. How Do Management Fees Affect Retirement Wealth under Mexico's Personal Retirement Accounts System?

    OpenAIRE

    Aguila, Emma; Hurd, Michael D.; Rohwedder, Susann

    2014-01-01

    In 1997, Mexico transformed its pay-as-you-go social security system to a fully funded system with personal retirement accounts, including management fees. This article examines changes in retirement wealth resulting from this new system. It shows that management fees have drained a significant proportion of individuals' retirement wealth and have increased the number of persons claiming a government-subsidized minimum pension, particularly from the time the system was introduced in 1997 unti...

  4. Context factors affecting design and operation of Food Safety Management Systems in the fresh produce chain

    NARCIS (Netherlands)

    Kirezieva, K.K.; Nanyunja, J.; Jacxsens, L.; Vorst, van der J.G.A.J.; Uyttendaele, M.; Luning, P.A.

    2013-01-01

    Recent food-borne outbreaks and cases of non-compliances to maximum residue limits of pesticides, indicated that food safety management systems (FSMS) in fresh produce chain are not yet performing in a satisfactory manner. However, the system output is not only dependent on the system design and ope

  5. Writing words from pictures: what representations are activated, and when?

    Science.gov (United States)

    Bonin, P; Fayol, M

    2000-06-01

    In three experiments, the nature of the representations involved in written picture naming and the time course of their activation were investigated. French participants had to produce picture names while hearing distractors. In Experiment 1, distractors semantically related to the picture names yielded a semantic interference effect when a stimulus onset asynchrony (SOA) of--150 msec, but not when a SOA of 0 msec, was used, in both spoken and written picture naming. Experiment 2 showed that the semantic interference effect was not located at the conceptual level. In Experiment 3, participants wrote down picture names while hearing semantically related, phonologically related, both semantically and phonologically related, or unrelated distractors, presented at both SOAs. A semantic interference effect was obtained with phonologically unrelated distractors but was eliminated with phonologically related distractors. Facilitatory effects of phonologically related distractors were found at both SOAs. The implications of the findings for written picture naming are discussed. PMID:10946550

  6. An Evaluation of Extended Validation and Picture-in-Picture Phishing Attacks

    Science.gov (United States)

    Jackson, Collin; Simon, Daniel R.; Tan, Desney S.; Barth, Adam

    In this usability study of phishing attacks and browser anti-phishing defenses, 27 users each classified 12 web sites as fraudulent or legitimate. By dividing these users into three groups, our controlled study measured both the effect of extended validation certificates that appear only at legitimate sites and the effect of reading a help file about security features in Internet Explorer 7. Across all groups, we found that picture-in-picture attacks showing a fake browser window were as effective as the best other phishing technique, the homograph attack. Extended validation did not help users identify either attack. Additionally, reading the help file made users more likely to classify both real and fake web sites as legitimate when the phishing warning did not appear.

  7. Fashion pictures and women pictures in French women magazine. Normatives parades or strategic masquerade?

    Directory of Open Access Journals (Sweden)

    Justine MARILLONNET

    2014-12-01

    Full Text Available This article proposes to study the fashion pictures within a representative sample of French women magazines. Based on the method of “sémiologie des indices”, used to analyze a corpus of woman’s body and fashion staged, this paper addresses the issue of new functions granted to the stereotyping process. Starting to the assumption of a contract between audience and media, this analysis shows that the gender stereotype may be prescribed, up to a caricature of the womanhood, to the female readers identified as co-producers of the media discourse. Demonstrating both the co-existence of a plurality of gender representations in its pictures and their variability, this work proposes the concept of strategic masquerade to apprehend the possible new functions for the process of gender stereotyping in media.

  8. Associations among systemic blood pressure, microalbuminuria and albuminuria in dogs affected with pituitary- and adrenal-dependent hyperadrenocorticism

    Directory of Open Access Journals (Sweden)

    Hsiang Tsai-Yuan

    2010-11-01

    Full Text Available Abstract Background Hypertension and proteinuria are medical complications associated with the multisystemic effects of long-term hypercortisolism in dogs with hyperadrenocorticism (HAC. Methods This study investigated the relationships among adrenocorticotropic hormone (ACTH-stimulation test results, systemic blood pressure, and microalbuminuria in clinically-healthy dogs (n = 100, in dogs affected with naturally occurring pituitary-dependent (PDH; n = 40, or adrenal-dependent hyperadrenocorticism (ADH; n = 30. Results Mean systemic blood pressure was similar between clinically healthy dogs and dogs with HAC (p = 0.803. However the incidence of hypertension was highest in dogs with ADH (p = 0.017, followed by dogs with PDH, with the lowest levels in clinically healthy dogs (p = 0.019. Presence of microalbuminuria and albuminuria in clinically healthy dogs and dogs affected with HAC was significantly different (p p = 0.306. Conclusions Higher incidence of hypertension and albuminuria, not microalbuminuria was seen in dogs affected with HAC compared to clinically healthy dogs; incidence of hypertension and albuminuria was significantly higher in dogs affected with ADH compared to PDH. However, presence of albuminuria was not correlated with systemic blood pressure.

  9. “Surprised!” Telling the pictures. Can the illustrations in picture books promote language acquisition?

    Directory of Open Access Journals (Sweden)

    Sandie Mourão

    2009-11-01

    Full Text Available Este artigo procura apresentar os resultados da re-análise dos dados recolhidos em dois projectos de investigaçãoacçãosobre a utilização de álbuns em língua inglesa nas aulas de Inglês da Educação Pré-Escolar em Portugal.Dois álbums forum usados, demonstrando diferentes interacções entre texto e imagem, ‘paralela’ e ‘interdependente’. Transcrições de gravações de horas do conto com estes livros foram categorizadas de acordo com asfalas em Inglês a que o texto ou imagem deram origem. Os resultados indicam que a linguagem que as criançasaprendem de facto, com os livros ‘inter-dependentes’ (onde a história escrita é diferente da história ilustrada émais rica e as próprias crianças tomam um papel mais activo na criação de um significado. As implicações destesresultados são discutidas.The following article presents the findings of a re-analysis of data from two action research projects investigatingthe use of English picture books in Pre-school English classes in Portugal. Two picture books were used, eachrepresenting parallel and interdependent storytelling models. Audio tapescripts of the picture book read aloudswere categorised according to the utterances prompted by the verbal and visual texts. Results show that foreignlanguage acquisition is extended when both the verbal and visual texts of a picture book are used for languageinput and that children are more actively involved in meaning making. Implications are discussed.

  10. SYSTEMIC MODIFICATIONS OF THE PUBLIC ORGANIZATIONAL CLIMATE AFFECTED BY THE MACRO-ECONOMIC CRISIS

    OpenAIRE

    Lect. Andreea Nita Ph. D; Prof. Ion Criveanu Ph. D

    2011-01-01

    The concept of management in the Romanian public administration, affected by the unfavourable measures dictated by the legislative because of the macro-economic crisis, reorganizes its priority tasks. An efficient management in adjustment situations to major systematic transformation has to give an essential importance to the administration task based on communication rules and the forming of organizational culture. The climate of public organizations disrupted by the instability of the labou...

  11. Enhanced Choice for Viewing Cocaine Pictures in Cocaine Addiction

    Energy Technology Data Exchange (ETDEWEB)

    Moeller, S.J.; Goldstein, R.; Moeller, S.J.; Maloney, T. Parvaz, M.A.; Dunning, J.P.; Alia-Klein, N.; Woicik, P.A.; Hajcak, G.; Telang, F.; Wang, G.-J.; Volkow, N.D.; Goldstein, R.Z.

    2009-02-01

    Individuals with cocaine use disorder (CUD) chose cocaine over nondrug rewards. In two newly designed laboratory tasks with pictures, we document this modified choice outside of a cocaine administration paradigm. Choice for viewing cocaine, pleasant, unpleasant, or neutral pictures-under explicit contingencies (choice made between two fully visible side-by-side images) and under more implicit contingencies (selections made between pictures hidden under flipped-over cards)-was examined in 20 CUD and 20 matched healthy control subjects. Subjects also provided self-reported ratings of each picture's pleasantness and arousal. Under both contingencies, CUD subjects chose to view more cocaine pictures than control subjects, group differences that were not fully explained by the self-reported picture ratings. Furthermore, whereas CUD subjects choice for viewing cocaine pictures exceeded choice for viewing unpleasant pictures (but did not exceed choice for viewing pleasant pictures, in contrast to their self-reported ratings), healthy control subjects avoided viewing cocaine pictures as frequently as, or even more than, unpleasant pictures. Finally, CUD subjects with the most cocaine viewing selections, even when directly compared with selections of the pleasant pictures, also reported the most frequent recent cocaine use. Enhanced drug-related choice in cocaine addiction can be demonstrated even for nonpharmacologic (pictorial) stimuli. This choice, which is modulated by alternative stimuli, partly transcends self-reports (possibly indicative of a disconnect in cocaine addiction between self-reports and objective behavior) to provide an objective marker of addiction severity. Neuroimaging studies are needed to establish the neural underpinnings of such enhanced cocaine-related choice.

  12. Deterministic recognizability of picture languages with Wang automata

    OpenAIRE

    V. Lonati; M. Pradella

    2010-01-01

    special issue dedicated to the second edition of the conference AutoMathA: from Mathematics to Applications International audience We present a model of automaton for picture language recognition, called Wang automaton, which is based on labeled Wang tiles. Wang automata combine features of both online tessellation acceptors and 4-way automata: as in online tessellation acceptors, computation assigns states to each picture position; as in 4-way automata, the input head visits the pictur...

  13. Selective and nonselective inhibition of competitors in picture naming

    OpenAIRE

    Shao, Z.; Meyer, A. S; Roelofs, A.P.A.

    2013-01-01

    The present study examined the relation between nonselective inhibition and selective inhibition in picture naming performance. Nonselective inhibition refers to the ability to suppress any unwanted response, whereas selective inhibition refers to the ability to suppress specific competing responses. The degree of competition in picture naming was manipulated by presenting targets along with distractor words that could be semantically related (e.g., a picture of a dog combined with the word c...

  14. Enhanced Choice for Viewing Cocaine Pictures in Cocaine Addiction

    International Nuclear Information System (INIS)

    Individuals with cocaine use disorder (CUD) chose cocaine over nondrug rewards. In two newly designed laboratory tasks with pictures, we document this modified choice outside of a cocaine administration paradigm. Choice for viewing cocaine, pleasant, unpleasant, or neutral pictures-under explicit contingencies (choice made between two fully visible side-by-side images) and under more implicit contingencies (selections made between pictures hidden under flipped-over cards)-was examined in 20 CUD and 20 matched healthy control subjects. Subjects also provided self-reported ratings of each picture's pleasantness and arousal. Under both contingencies, CUD subjects chose to view more cocaine pictures than control subjects, group differences that were not fully explained by the self-reported picture ratings. Furthermore, whereas CUD subjects choice for viewing cocaine pictures exceeded choice for viewing unpleasant pictures (but did not exceed choice for viewing pleasant pictures, in contrast to their self-reported ratings), healthy control subjects avoided viewing cocaine pictures as frequently as, or even more than, unpleasant pictures. Finally, CUD subjects with the most cocaine viewing selections, even when directly compared with selections of the pleasant pictures, also reported the most frequent recent cocaine use. Enhanced drug-related choice in cocaine addiction can be demonstrated even for nonpharmacologic (pictorial) stimuli. This choice, which is modulated by alternative stimuli, partly transcends self-reports (possibly indicative of a disconnect in cocaine addiction between self-reports and objective behavior) to provide an objective marker of addiction severity. Neuroimaging studies are needed to establish the neural underpinnings of such enhanced cocaine-related choice.

  15. The potency of people in pictures: evidence from sequences of eye fixations.

    Science.gov (United States)

    Humphrey, Katherine; Underwood, Geoffrey

    2010-08-19

    Does the presence of people in a natural scene affect the way that we inspect that picture? Previous research suggests that we have a natural tendency to look at the social information before other items in a scene. There is also evidence that accuracy of visual memory and the way we move our eyes are related. This experiment investigated whether eye movements differed when participants correctly and incorrectly identified stimuli at recognition, and how this is affected by the presence of people. Eye movements were recorded from 15 participants while they inspected photographs at encoding and during a recognition memory test. Half of the pictures contained people and half did not. The presence of people increased recognition accuracy and affected average fixation duration and average saccadic amplitude. Accuracy was not affected by the size of the Region of Interest (RoI), the number of people in the picture, or the distance of the person from the center. Analyses of the order and pattern of fixations showed a high similarity between encoding and recognition in all conditions, but the lack of relationship between string similarity and recognition accuracy challenges the idea that the reproduction of eye movements alone is enough to create a memory advantage.

  16. Age of acquisition and word frequency in written picture naming.

    Science.gov (United States)

    Bonin, P; Fayol, M; Chalard, M

    2001-05-01

    This study investigates age of acquisition (AoA) and word frequency effects in both spoken and written picture naming. In the first two experiments, reliable AoA effects on object naming speed, with objective word frequency controlled for, were found in both spoken (Experiment 1) and written picture naming (Experiment 2). In contrast, no reliable objective word frequency effects were observed on naming speed, with AoA controlled for, in either spoken (Experiment 3) or written (Experiment 4) picture naming. The implications of the findings for written picture naming are briefly discussed. PMID:11394057

  17. Phase space picture of quantum mechanics group theoretical approach

    CERN Document Server

    Kim, Y S

    1991-01-01

    This book covers the theory and applications of the Wigner phase space distribution function and its symmetry properties. The book explains why the phase space picture of quantum mechanics is needed, in addition to the conventional Schrödinger or Heisenberg picture. It is shown that the uncertainty relation can be represented more accurately in this picture. In addition, the phase space picture is shown to be the natural representation of quantum mechanics for modern optics and relativistic quantum mechanics of extended objects.

  18. The Pentaquark Candidates in the Dynamical Diquark Picture

    CERN Document Server

    Lebed, Richard F

    2015-01-01

    Starting with the dynamical picture of the exotic $c\\bar c$-containing states $XY \\! Z$ as the confinement-induced hadronization of a rapidly separating pair of a compact diquark and antidiquark, we describe the pentaquark candidates $P_c^+(4380)$ and $P_c^+(4450)$ in terms of a confined but rapidly separating color-antitriplet diquark $cu$ and color-triplet "triquark" $\\bar c (ud)$. This separation explains the relatively small $P_c^+$ widths, despite these 5-quark systems lying far above both the $J/\\psi \\, p$ and $\\Lambda_c \\bar D^{(*)0}$ thresholds. The $P_c^+$ states are predicted to form isospin doublets with neutral partners $P_c^0$.

  19. On two pictures in the heuristic approach to gravity

    CERN Document Server

    Nikishov, A I

    2007-01-01

    We examine the heuristic approach to constant gravitational field by Dehnen, H\\"onl and Westpfahl, extending it everywhere beyond linear approximation. Then it becomes flexible to accommodate possible modifications of General Relativity. We have found that two pictures introduced in the related paper by Thirring are helpful in better understanding some features of gravitation. In particular, this approach suggest that the privileged system for constant gravitational field must be the isotropic one and that the requirement of gauge invariance in gravitation theory may be a luxury; it is sufficient to take care that the nonphysical degrees of freedom do not invalidate calculations. It follows from this approach that gravitational constant should depend on gravitational field and some universality in the form of metric of an asymmetric body is suggested.

  20. The sound picture of the Saami shamanic drum

    Directory of Open Access Journals (Sweden)

    Rolf Kristoffersson

    1991-01-01

    Full Text Available Research on the Saami shamanic drum has mainly concerned the pictorial world of the drumhead. Therefore, studying the sound picture may give new insights into the Saami Shamanic drum. In my study of the Saami drum I have tried to find the answer to two questions: 1 Is it possible to detect the sound pictogram from some of the drums preserved? 2 Are there marks of usage which might indicate what kind of sounds the users preferred? A comparison of the different drums shows that the signs of usage are surprisingly consistent. The drum sounds reach the receptive organs in the human ear in a range of low but strong tones, with low frequencies but high amplitude. This means that more energy is transferred into the nervous system than with various other types of instrumental sounds.

  1. Long-term affected energy production of waste to energy technologies identified by use of energy system analysis

    International Nuclear Information System (INIS)

    Affected energy production is often decisive for the outcome of consequential life-cycle assessments when comparing the potential environmental impact of products or services. Affected energy production is however difficult to determine. In this article the future long-term affected energy production is identified by use of energy system analysis. The focus is on different uses of waste for energy production. The Waste-to-Energy technologies analysed include co-combustion of coal and waste, anaerobic digestion and thermal gasification. The analysis is based on optimization of both investments and production of electricity, district heating and bio-fuel in a future possible energy system in 2025 in the countries of the Northern European electricity market (Denmark, Norway, Sweden, Finland and Germany). Scenarios with different CO2 quota costs are analysed. It is demonstrated that the waste incineration continues to treat the largest amount of waste. Investments in new waste incineration capacity may, however, be superseded by investments in new Waste-to-Energy technologies, particularly those utilising sorted fractions such as organic waste and refuse derived fuel. The changed use of waste proves to always affect a combination of technologies. What is affected varies among the different Waste-to-Energy technologies and is furthermore dependent on the CO2 quota costs and on the geographical scope. The necessity for investments in flexibility measures varies with the different technologies such as storage of heat and waste as well as expansion of district heating networks. Finally, inflexible technologies such as nuclear power plants are shown to be affected.

  2. A Pedagogical Experiment Using Bubble Chamber Pictures

    CERN Multimedia

    2002-01-01

    We have taken, in October 1981, 20.000 pictures of proton-proton interactions at 5 GeV/c in order to get some clean elastic events which can be easily studied by high school students. The purpose is to illustrate, by actual measurements of these real events, some basic concepts of relativistic mechanisms. This experiment will be an extension of our previous one, performed with HBC 2m events taken at 2 GeV/c. In 1980, all french lycees were provided with large size reproduction of HBC 2m events. Before distribution they were carefully selected and severe kinematical cuts were made. The students measured track curvatures by template, and checked the necessity and the validity of relativistic mechanics by computing the energy balance using non-relativistic and relativistic formulae. No practical problems have been encountered during this experiment and the pedagogical results are encouraging. This new sample of events will be interesting because they are relativistic than the old ones although with the same curv...

  3. Absence of system xc- in mice decreases anxiety and depressive-like behavior without affecting sensorimotor function or spatial vision.

    Science.gov (United States)

    Bentea, Eduard; Demuyser, Thomas; Van Liefferinge, Joeri; Albertini, Giulia; Deneyer, Lauren; Nys, Julie; Merckx, Ellen; Michotte, Yvette; Sato, Hideyo; Arckens, Lutgarde; Massie, Ann; Smolders, Ilse

    2015-06-01

    There is considerable preclinical and clinical evidence indicating that abnormal changes in glutamatergic signaling underlie the development of mood disorders. Astrocytic glutamate dysfunction, in particular, has been recently linked with the pathogenesis and treatment of mood disorders, including anxiety and depression. System xc- is a glial cystine/glutamate antiporter that is responsible for nonvesicular glutamate release in various regions of the brain. Although system xc- is involved in glutamate signal transduction, its possible role in mediating anxiety or depressive-like behaviors is currently unknown. In the present study, we phenotyped adult and aged system xc- deficient mice in a battery of tests for anxiety and depressive-like behavior (open field, light/dark test, elevated plus maze, novelty suppressed feeding, forced swim test, tail suspension test). Concomitantly, we evaluated the sensorimotor function of system xc- deficient mice, using motor and sensorimotor based tests (rotarod, adhesive removal test, nest building test). Finally, due to the presence and potential functional relevance of system xc- in the eye, we investigated the visual acuity of system xc- deficient mice (optomotor test). Our results indicate that loss of system xc- does not affect motor or sensorimotor function, in either adult or aged mice, in any of the paradigms investigated. Similarly, loss of system xc- does not affect basic visual acuity, in either adult or aged mice. On the other hand, in the open field and light/dark tests, and forced swim and tail suspension tests respectively, we could observe significant anxiolytic and antidepressive-like effects in system xc- deficient mice that in certain cases (light/dark, forced swim) were age-dependent. These findings indicate that, under physiological conditions, nonvesicular glutamate release via system xc- mediates aspects of higher brain function related to anxiety and depression, but does not influence sensorimotor function

  4. Soil Quality Indicators as Affected by a Long Term Barley-Maize and Maize Cropping Systems

    Directory of Open Access Journals (Sweden)

    Anna Corsini

    2011-02-01

    Full Text Available Most soil studies aim a better characterization of the system through indicators. In the present study nematofauna and soil structure were chosen as indicators to be assess soil health as related to agricultural practices. The field research was carried out on the two fodder cropping systems continuous maize (CM, Zea mays L. and a 3-year rotation of silage-maize – silage-barley (Hordeum vulgare L. with Italian ryegrass (R3 and grain-maize maintained in these conditions for 18 years. Each crop system was submitted to two management options: 1 the high input level (H, done as a conventional tillage, 2 the low input level (L, where the tillage was replaced by harrowing and the manure was reduced by 30%. The effects of the two different cropping systems was assessed on soil nematofauna and soil physic parameters (structure or aggregate stability. Comparison was made of general composition, trophic structure and biodiversity of the nematofauna collected in both systems. Differences in nematode genera composition and distribution between the two systems were also recorded. The monoculture, compared to the three year rotation, had a negative influence on the nematofauna composition and its ecological succession. The Structural Stability Index (SSI values indicate that both the cropping systems had a negative effect on the aggregate stability. The results indicate that nematofauna can be used to assess the effects of cropping systems on soil ecosystem, and therefore be considered a good indicator of soil health to integrate information from different chemical or physical indicators.

  5. Soil Quality Indicators as Affected by a Long Term Barley-Maize and Maize Cropping Systems

    Directory of Open Access Journals (Sweden)

    Barbara Manachini

    2009-03-01

    Full Text Available Most soil studies aim a better characterization of the system through indicators. In the present study nematofauna and soil structure were chosen as indicators to be assess soil health as related to agricultural practices. The field research was carried out on the two fodder cropping systems continuous maize (CM, Zea mays L. and a 3-year rotation of silage-maize – silage-barley (Hordeum vulgare L. with Italian ryegrass (R3 and grain-maize maintained in these conditions for 18 years. Each crop system was submitted to two management options: 1 the high input level (H, done as a conventional tillage, 2 the low input level (L, where the tillage was replaced by harrowing and the manure was reduced by 30%. The effects of the two different cropping systems was assessed on soil nematofauna and soil physic parameters (structure or aggregate stability. Comparison was made of general composition, trophic structure and biodiversity of the nematofauna collected in both systems. Differences in nematode genera composition and distribution between the two systems were also recorded. The monoculture, compared to the three year rotation, had a negative influence on the nematofauna composition and its ecological succession. The Structural Stability Index (SSI values indicate that both the cropping systems had a negative effect on the aggregate stability. The results indicate that nematofauna can be used to assess the effects of cropping systems on soil ecosystem, and therefore be considered a good indicator of soil health to integrate information from different chemical or physical indicators.

  6. A Multimedia Adaptive Tutoring System for Mathematics That Addresses Cognition, Metacognition and Affect

    Science.gov (United States)

    Arroyo, Ivon; Woolf, Beverly Park; Burelson, Winslow; Muldner, Kasia; Rai, Dovan; Tai, Minghui

    2014-01-01

    This article describes research results based on multiple years of experimentation and real-world experience with an adaptive tutoring system named Wayang Outpost. The system represents a novel adaptive learning technology that has shown successful outcomes with thousands of students, and provided teachers with valuable information about…

  7. Tracking Social Motivation Systems Deficits: The Affective Neuroscience View of Autism

    Science.gov (United States)

    Carré, Arnaud; Chevallier, Coralie; Robel, Laurence; Barry, Caroline; Maria, Anne-Solène; Pouga, Lydia; Philippe, Anne; Pinabel, François; Berthoz, Sylvie

    2015-01-01

    Abnormal functioning of primary brain systems that express and modulate basic emotional drives are increasingly considered to underlie mental disorders including autism spectrum disorders. We hypothesized that ASD are characterized by disruptions in the primary systems involved in the motivation for social bonding. Twenty adults with ASD were…

  8. Meet OLAF, a good friend of the IAPS! The Open Library of Affective Foods: a tool to investigate the emotional impact of food in adolescents.

    Directory of Open Access Journals (Sweden)

    Laura Miccoli

    Full Text Available In the last decades, food pictures have been repeatedly employed to investigate the emotional impact of food on healthy participants as well as individuals who suffer from eating disorders and obesity. However, despite their widespread use, food pictures are typically selected according to each researcher's personal criteria, which make it difficult to reliably select food images and to compare results across different studies and laboratories. Therefore, to study affective reactions to food, it becomes pivotal to identify the emotional impact of specific food images based on wider samples of individuals. In the present paper we introduce the Open Library of Affective Foods (OLAF, which is a set of original food pictures created to reliably select food pictures based on the emotions they prompt, as indicated by affective ratings of valence, arousal, and dominance and by an additional food craving scale. OLAF images were designed to allow simultaneous use with affective images from the International Affective Picture System (IAPS, which is a well-known instrument to investigate emotional reactions in the laboratory. The ultimate goal of the OLAF is to contribute to understanding how food is emotionally processed in healthy individuals and in patients who suffer from eating and weight-related disorders. The present normative data, which was based on a large sample of an adolescent population, indicate that when viewing affective non-food IAPS images, valence, arousal, and dominance ratings were in line with expected patterns based on previous emotion research. Moreover, when viewing food pictures, affective and food craving ratings were consistent with research on food cue processing. As a whole, the data supported the methodological and theoretical reliability of the OLAF ratings, therefore providing researchers with a standardized tool to reliably investigate the emotional and motivational significance of food. The OLAF database is publicly

  9. [The Influence of Puberty on Neural Systems Subserving Emotion Regulation: Implications for Understanding Risk for Affective Disorders].

    Science.gov (United States)

    Ladouceur, Cecile D

    2016-01-01

    Adolescence, with the onset of puberty, represents a developmental period that, in the context of adverse events, renders youth vulnerable to the onset of psychopathology such as affective disorders. It is also a time when fronto-striatal-limbic systems supporting the processing and regulation of emotion and reward undergo important neuromaturational changes. Despite evidence from epidemiological research suggesting that, particularly in girls, the increase in the rate of depression is more strongly associated with pubertal development than maturational age, researchers are just beginning to scratch the surface regarding the specific influence of puberty on the development of fronto-striatal-limbic systems implicated in the pathophysiology of affective disorders. The goal of this review is to a) summarize findings from human neuroimaging studies focusing on the specific influence of puberty or sex hormones on the neurodevelopment of emotional processes, b) highlight the need for a better understanding of neurodevelopmental changes during puberty and how such changes could contribute to developmental trajectories toward the onset of an affective disorder and, c) discuss the potential value of investigating how these changes may contribute to unique opportunities for developing intervention strategies for affective disorders in adolescence. PMID:27570951

  10. Concentrations of hormones, pharmaceuticals and other micropollutants in groundwater affected by septic systems in New England and New York

    Science.gov (United States)

    Phillips, Patrick J.; Schubert, Christopher E.; Argue, Denise M.; Fisher, Irene J.; Furlong, Edward T.; Foreman, William T.; Gray, James L.; Chalmers, Ann T.

    2015-01-01

    Septic-system discharges can be an important source of micropollutants (including pharmaceuticals and endocrine active compounds) to adjacent groundwater and surface water systems. Groundwater samples were collected from well networks tapping glacial till in New England (NE) and sandy surficial aquifer New York (NY) during one sampling round in 2011. The NE network assesses the effect of a single large septic system that receives discharge from an extended health care facility for the elderly. The NY network assesses the effect of many small septic systems used seasonally on a densely populated portion of Fire Island. The data collected from these two networks indicate that hydrogeologic and demographic factors affect micropollutant concentrations in these systems.

  11. Analysis of the Factors Affecting Resistance to Changes in Management Accounting Systems

    Directory of Open Access Journals (Sweden)

    Rodrigo Angonese

    2014-12-01

    Full Text Available Despite changes in the environment and management accounting practices, studies indicate that management accounting systems do not change or change at a much slower rate than expected. The stability of the management accounting systems used by companies may relate to resistance to changing these systems. This study analyzes the factors that contribute to resistance to implementing an integrated management system from the perspective of institutional theory, grounded in the old institutional economics. Methodologically, this study provides a qualitative assessment of the problem and a descriptive analysis of the resistance factors through a case-study approach. The data were collected using semi-structured interviews and analyzed through content analysis. Two companies were selected for this study due to their differing characteristics. The following seven factors were analyzed for resistance to implementing integrated management systems: institutional power, ontological insecurity, trust, inertia, lack of knowledge, acceptance of routines and decoupling. However, there was no evidence to characterize hierarchical power. The research findings indicate that changing management accounting systems, through the implementation of an integrated management system, faces internal resistance in these organizations. Each factor varies in intensity but is permanently present in these companies, such as ontological insecurity, trust, inertia, lack of knowledge, acceptance of routines and decoupling. These factors are awakened when the change process begins and, if they gather enough force, can stop the change.

  12. 女大学生对不同类型性图片间认知加工的神经机制差异研究%A study on differences of cognitive mechanism in processing different types of sexual picture in female university students

    Institute of Scientific and Technical Information of China (English)

    刘典英; 廖梅蓉; 谢秀东; 钟华; 张斌; 蔡连秀; 邓广; 袁水莲; 黄冬华

    2012-01-01

    目的 了解女大学生对国际情绪图片系统(International Affective Picture System,IAPS)中不同类型性图片(异性恋夫妇性图片、男性性图片、女性性图片)认知加工的神经机制差异.方法 应用事件相关电位(event-related potential,ERP)技术,比较18例正常女性观看中性图片和不同类型性内容图片时N2、P3及PSW波幅的差异.结果 异性恋夫妇性图片诱发,前额区N2[(0.99±1.69)μV]成分、顶区P3[(17.27±1.45)μV]成分最大,其次是男性性图片[(-0.02±1.83)μV,( 15.92±1.26) μV],再次是女性性图片[(-0.22±1.56)μV,(15.49±1.34)μV],且N2、P3波幅在异性恋夫妇性图片和女性性图片间差异具有统计学意义(均P<0.05);异性恋夫妇性图片[(15.22±1.98)μV]与女性性图片[(14.53±1.75)μV]诱发的PSW波幅差异无统计学意义,但均显著大于男性性图片[(10.93±2.60)μV](均P<0.05).结论 高度暴露的异性恋夫妇性图片诱发女性最强的性唤起及消耗最多的注意资源,性唤起维持时间也最长.%Objective To observe female university students' differences of cognitive mechanism in processing different types of sexual picture from International Affective Picture System (IAPS).Methods Using event related potential (ERP),the differences of the amplitudes of N2,P3 and PSW were examined induced by the neutral pictures and different types of erotic pictures.Results The amplitudes of N2 ( (0.99 ±1.69 ) μV) and P3 ( ( 17.27 ± 1.45 ) μV) elicited by heterosexual couple erotic pictures were highest,followed by the male erotic pictures( ( -0.02 ± 1.83 ) μV,( 15.92 ± 1.26 ) μV),and then were the female erotic pictures ( ( -0.22 ± 1.56)μV,( 15.49 ±1.34) μV).There was statistical significance in N2 and P3 between heterosexual couple erotic pictures and female erotic pictures ( P <0.05 ).There was no significant difference in PSW component between heterosexual couple erotic pictures( ( 15.22 ± 1.98 ) μV) and female

  13. Somatic influences on subjective well-being and affective disorders: the convergence of thermosensory and central serotonergic systems

    OpenAIRE

    Raison, Charles L.; Hale, Matthew W.; Williams, Lawrence E.; Tor D Wager; Lowry, Christopher A.

    2015-01-01

    Current theories suggest that the brain is the sole source of mental illness. However, affective disorders, and major depressive disorder (MDD) in particular, may be better conceptualized as brain-body disorders that involve peripheral systems as well. This perspective emphasizes the embodied, multifaceted physiology of well-being, and suggests that afferent signals from the body may contribute to cognitive and emotional states. In this review, we focus on evidence from preclinical and clinic...

  14. Captures of MFO-resistant Cydia pomonella adults as affected by lure, crop management system and flight

    OpenAIRE

    Bosch, D; Rodríguez, M.A.; Avilla, J.

    2015-01-01

    The main resistance mechanism of codling moth (Cydia pomonella) in the tree fruit area of Lleida (NE Spain) is multifunction oxidases (MFO). We studied the frequency of MFO-resistant adults captured by different lures, with and without pear ester, and flights in orchards under different crop management systems. The factor year affected codling moth MFO-resistance level, particularly in the untreated orchards, highlighting the great influence of codling moth migration on the spread of resistan...

  15. Toward an evolutionary perspective on conceptual representation: Species-specific calls activate visual and affective processing systems in the macaque

    OpenAIRE

    Gil-da-Costa, Ricardo; Braun, Allen; Lopes, Marco; Hauser, Marc D; Carson, Richard E.; Herscovitch, Peter; Martin, Alex

    2004-01-01

    Non-human primates produce a diverse repertoire of species-specific calls and have rich conceptual systems. Some of their calls are designed to convey information about concepts such as predators, food, and social relationships, as well as the affective state of the caller. Little is known about the neural architecture of these calls, and much of what we do know is based on single-cell physiology from anesthetized subjects. By using positron emission tomography in awake rhesus macaques, we fo...

  16. Naloxone affects reproductive system in a rat model with polycystic features

    Directory of Open Access Journals (Sweden)

    Manizheh Karami

    2015-03-01

    Conclusion: Aspect of rat reproductive system may be linked with the cystic characteristic of ovary. This study involves opioid receptors in the naloxone efficacy on reproductive agents of rat with polycystic aspect.

  17. A Review on Factors Affecting the EDI System Migration in Logistics

    Directory of Open Access Journals (Sweden)

    Umussaadah Adam

    2012-03-01

    Full Text Available The purpose of this paper is to review and analyze the state of the art of research in system migration. It is reviewed by elements of migration which are business, technology and people. The review of literature on system migration research is based on 70 referred journals, proceedings, thesis and books published from 1997 to 2010 in ISI, SCOPUS, Science Direct and IEEE explore, Emerald and JSTOR. The major findings show that there is high number of research that focused on element of technology particularly software. It is also identified that there are only a few research focused on element of people that provide migration frameworks to support organizations preparing to migrate from legacy system. Important issues highlighted in EDI migration are system integration, security and cost. None of literature found that propose migration framework from EDI to XML.

  18. The Aryl Hydrocarbon Receptor Affects Distinct Tissue Compartments during Ontogeny of the Immune System

    OpenAIRE

    Hogaboam, Jason P.; Moore, Amanda J.; Lawrence, B. Paige

    2007-01-01

    There is growing evidence that prenatal and early postnatal environmental factors influence the development and programming of the immune system, causing long-lasting negative health consequences. The aryl hydrocarbon receptor (AhR) is an important modulator of the development and function of the immune system; however, the mechanism is poorly understood. Exposure to the AhR agonist 2,3,7,8-tetrachlorodibenzo-p-dioxin throughout gestation and during lactation yields adult offspring with persi...

  19. Do They Find You on Facebook? Facebook Profile Picture and Hiring Chances

    OpenAIRE

    Baert, Stijn

    2015-01-01

    We investigate whether the publicly available information on Facebook about job applicants affects employers' hiring decisions. To this end, we conduct a field experiment in which fictitious job applications are sent to real job openings in Belgium. The only characteristic in which these candidates differ is the unique Facebook profile that can be found online with their name. Candidates with the most beneficial Facebook picture obtain approximately 39% more job interview invitations compared...

  20. A Study on Gendered Portrayals in Children's Picture Books with Mathematical Content

    OpenAIRE

    Patricia R. Ladd

    2011-01-01

    This study analyzes sexism in children's picture books that incorporate mathematical problems and problem-solving into the plot to determine if children's earliest reading material is affecting the achievement gap between males and females in this subject area. The study focused not just on overall totals of male and female characters, but also analyzed which genders most often portrayed gender stereotyped behaviors and personality traits and which characters were most often shown with mathem...

  1. Validity and Reliability of a Working Memory Task for Children: Picture Span

    Directory of Open Access Journals (Sweden)

    Burin, Débora I.

    2013-04-01

    Full Text Available Working Memory is an active memory system responsible of simultaneous storage and concurrent processing of information. The aim of this work is to present the psychometric properties of a global Working Memory task: Picture Span. Picture Span along with the Automated Working Memory Assessment battery Block Design subtest of the Wechsler Intelligence Scale for Children were administered to 210 children of 6-, 8- and 11-years old from Buenos Aires City, Argentina. Internal consistency using Cronbach’s Alpha was estimated and evidence in favor of convergent and discriminate validity was assessed through a correlation analysis and a posterior exploratory factor analysis. Results showed that Picture Span is a valid and reliable instrument to globally assess Working Memory in children within our context.

  2. Out of mind, out of sight: Language affects perceptual vividness in memory

    NARCIS (Netherlands)

    L. Vandeberg (Lisa); A. Eerland (Anita); R.A. Zwaan (Rolf)

    2012-01-01

    textabstractWe examined whether language affects the strength of a visual representation in memory. Participants studied a picture, read a story about the depicted object, and then selected out of two pictures the one whose transparency level most resembled that of the previously presented picture.

  3. Out of mind, out of sight: language affects perceptual vividness in memory

    NARCIS (Netherlands)

    L. Vandeberg; A. Eerland; R.A. Zwaan

    2012-01-01

    We examined whether language affects the strength of a visual representation in memory. Participants studied a picture, read a story about the depicted object, and then selected out of two pictures the one whose transparency level most resembled that of the previously presented picture. The stories

  4. Plant diversity and functional groups affect Si and Ca pools in aboveground biomass of grassland systems.

    Science.gov (United States)

    Schaller, Jörg; Roscher, Christiane; Hillebrand, Helmut; Weigelt, Alexandra; Oelmann, Yvonne; Wilcke, Wolfgang; Ebeling, Anne; Weisser, Wolfgang W

    2016-09-01

    Plant diversity is an important driver of nitrogen and phosphorus stocks in aboveground plant biomass of grassland ecosystems, but plant diversity effects on other elements also important for plant growth are less understood. We tested whether plant species richness, functional group richness or the presence/absence of particular plant functional groups influences the Si and Ca concentrations (mmol g(-1)) and stocks (mmol m(-2)) in aboveground plant biomass in a large grassland biodiversity experiment (Jena Experiment). In the experiment including 60 temperate grassland species, plant diversity was manipulated as sown species richness (1, 2, 4, 8, 16) and richness and identity of plant functional groups (1-4; grasses, small herbs, tall herbs, legumes). We found positive species richness effects on Si as well as Ca stocks that were attributable to increased biomass production. The presence of particular functional groups was the most important factor explaining variation in aboveground Si and Ca stocks (mmol m(-2)). Grass presence increased the Si stocks by 140 % and legume presence increased the Ca stock by 230 %. Both the presence of specific plant functional groups and species diversity altered Si and Ca stocks, whereas Si and Ca concentration were affected mostly by the presence of specific plant functional groups. However, we found a negative effect of species diversity on Si and Ca accumulation, by calculating the deviation between mixtures and mixture biomass proportions, but in monoculture concentrations. These changes may in turn affect ecosystem processes such as plant litter decomposition and nutrient cycling in grasslands.

  5. Plant diversity and functional groups affect Si and Ca pools in aboveground biomass of grassland systems.

    Science.gov (United States)

    Schaller, Jörg; Roscher, Christiane; Hillebrand, Helmut; Weigelt, Alexandra; Oelmann, Yvonne; Wilcke, Wolfgang; Ebeling, Anne; Weisser, Wolfgang W

    2016-09-01

    Plant diversity is an important driver of nitrogen and phosphorus stocks in aboveground plant biomass of grassland ecosystems, but plant diversity effects on other elements also important for plant growth are less understood. We tested whether plant species richness, functional group richness or the presence/absence of particular plant functional groups influences the Si and Ca concentrations (mmol g(-1)) and stocks (mmol m(-2)) in aboveground plant biomass in a large grassland biodiversity experiment (Jena Experiment). In the experiment including 60 temperate grassland species, plant diversity was manipulated as sown species richness (1, 2, 4, 8, 16) and richness and identity of plant functional groups (1-4; grasses, small herbs, tall herbs, legumes). We found positive species richness effects on Si as well as Ca stocks that were attributable to increased biomass production. The presence of particular functional groups was the most important factor explaining variation in aboveground Si and Ca stocks (mmol m(-2)). Grass presence increased the Si stocks by 140 % and legume presence increased the Ca stock by 230 %. Both the presence of specific plant functional groups and species diversity altered Si and Ca stocks, whereas Si and Ca concentration were affected mostly by the presence of specific plant functional groups. However, we found a negative effect of species diversity on Si and Ca accumulation, by calculating the deviation between mixtures and mixture biomass proportions, but in monoculture concentrations. These changes may in turn affect ecosystem processes such as plant litter decomposition and nutrient cycling in grasslands. PMID:27164912

  6. Experiencing affective interactive art

    NARCIS (Netherlands)

    Bialoskorski, Leticia S.S.; Westerink, Joyce H.D.M.; Broek, van den Egon L.

    2010-01-01

    The progress in the field of affective computing enables the realization of affective art. This paper describes the affective interactive art system Mood Swings, which interprets and visualizes affect expressed by a person. Mood Swings is founded on the integration of a framework for affective move

  7. Platelet Derived Growth Factor And The Extent Of Skin Thickening As Potential Indicators Of Pulmonary Affection In Systemic Sclerosis

    Directory of Open Access Journals (Sweden)

    Manal Mahmoud, Mona El Fangary*, Aya M Abdel Dayem

    2007-03-01

    Full Text Available Background and objective: Systemic sclerosis is a multisystem disease that has considerable variability in its presentation, course, and prognosis. The aim of this study was to determine serum levels of platelet-derived growth factor (PDGF A/B in patients with systemic sclerosis (SSc and to correlate these levels with the extent of skin sclerosis and presence of pulmonary affection. Moreover, the efficiency of PDGF and skin score in early detection of pulmonary affection were assessed. Patients and methods:The study included 22 female patients with SSc (according to the American College of Rheumatology (Masi et al., 1980 and 15 age-matched healthy control females. According to the classification by LeRoy et al. (1988, we divided our patients into limited SSc (10 patients-45.5% and diffuse SSc (12 patients-54.5%. The extent of skin sclerosis was assessed by the modified Rodnan total skin thickness scoring (TSS system (Clements et al.,1995. In our study, patients with limited SSc had a skin score 25. Five diffuse SSc patients had associated pulmonary affection, diagnosed by history taking, clinical examination, chest x-ray, arterial blood gases, spirometry and diffusing capacity of the lung for carbon monoxide (DLCO. Serum levels of PDGF were determined in SSc patients and healthy controls using quantitative sandwich ELISA technique. Results: Serum PDGF mean and standard deviation in healthy subjects was 5.2+2.466 ug/l. PDGF values showed continuous significant increment with progression of the disease. Mean PDGF serum levels in limited SSc, diffuse SSc without pulmonary affection and with pulmonary affection were 15.8+2.3, 20.86+2.41 and 32+3.08 ug/l, respectively. Furthermore, the results revealed that PDGF value 25 ug/l. This value provided a diagnostic sensitivity and specificity of 100 %. As regards the total skin score, a statistical significance was found between limited and diffuse SSc but did not show a statistically significant

  8. BONE PICTURE BOOK, A BOOK FOR STUDENTS USING THE ESS UNIT BONES.

    Science.gov (United States)

    Elementary Science Study, Newton, MA.

    THIS PICTURE BOOK WAS DEVELOPED FOR USE WITH THE ELEMENTARY SCIENCE STUDY UNIT ON "BONES." THE UNIT PROVIDES AN OPPORTUNITY TO DEVELOP MANY CONCEPTS ABOUT THE SKELETAL SYSTEM. NUMEROUS PHOTOGRAPHS ARE PROVIDED OF REPRESENTATIVES OF THE FIVE VERTEBRATE CLASSES AND SELECTED INVERTEBRATES. BOTH EXTANT AND EXTINCT MEMBERS ARE REPRESENTED. THE MEMBERS…

  9. A faddeev calculation for pentaquark Theta(+) in diquark picture with Nambu-Jona-Lasinio type interaction

    NARCIS (Netherlands)

    Mineo, H.; Tjon, J. A.; Tsushima, Kazuo; Yang, Shin Nan

    2007-01-01

    A Bethe-Salpeter-Faddeev (BSF) calculation is performed for the pentaquark Theta(+) in the diquark picture of Jaffe and Wilczek in which Theta(+) is a diquark-diquark-(s) over bar three-body system. Nambu-Jona-Lasinio (NJL) model is used to calculate the lowest order diagrams in the two-body scatter

  10. Music as the Representative of the World Picture, the Phenomenon of Culture

    Science.gov (United States)

    Kossanova, Aigul Sh.; Yermanov, Zhanat R.; Bekenova, Aizhan S.; Julmukhamedova, Aizhan A.; Takezhanova, Roza Ph.; Zhussupova, Saule S.

    2016-01-01

    The purpose of this article is to the study of music as a representative of the picture of the world nomadic culture. With a systemic organization, rich expressive means, music reflects the diversity of the world in its complex, subtle and profound manifestations being the artistic value, key world modeling element. Music can satisfy the aesthetic…

  11. Child Readers and the Worlds of the Picture Book

    Science.gov (United States)

    Baird, Adela; Laugharne, Janet; Maagerø, Eva; Tønnessen, Elise Seip

    2016-01-01

    Children as readers of picture books and the ways they respond to, and make meaning from, such texts are the focus of this article, which reports on a small-scale study undertaken in Norway and Wales, UK. The theoretical framing of the research draws on concepts of the multimodal ensemble in picture books and of the reading event as part of a…

  12. Creating Science Picture Books for an Authentic Audience

    Science.gov (United States)

    DeFauw, Danielle L.; Saad, Klodia

    2014-01-01

    This article presents an authentic writing opportunity to help ninth-grade students use the writing process in a science classroom to write and illustrate picture books for fourth-grade students to demonstrate and share their understanding of a biology unit on cells. By creating a picture book, students experience the writing process, understand…

  13. Familiar Fairy Tale Picture Books Transformed into Teen Novels.

    Science.gov (United States)

    Chance, Rosemary

    2003-01-01

    Describes characteristics of fairy tales. Discusses use of fairy tales and novels for teens in the classroom. Presents annotations of 31 titles including both picture books and young adult novels grouped by nine popular tales. Concludes that through comparing picture books and teen novels, there is one last chance to introduce fairy tales to older…

  14. Modality in Russian language picture of the world

    OpenAIRE

    Glazkova Svetlana

    2013-01-01

    In article the incentive modality in Russian language picture of the world on a design example a predicative + an infinitive is analyzed. Research of modeling synonyms showed unevenness of a modal language pic-ture of the world of Russian: intention and need prevalence and obligation reduction

  15. Task choice and semantic interference in picture naming

    NARCIS (Netherlands)

    Piai, V.; Roelofs, A.P.A.; Schriefers, H.J.

    2015-01-01

    Evidence from dual-task performance indicates that speakers prefer not to select simultaneous responses in picture naming and another unrelated task, suggesting a response selection bottleneck in naming. In particular, when participants respond to tones with a manual response and name pictures with

  16. Apollo 15 mission. Temporary loss of command module television picture

    Science.gov (United States)

    1973-01-01

    An investigation was made into the temporary loss of command module color television picture by the ground station converter at Mission Control Center. Results show the picture loss was caused by a false synchronization pulse that resulted from the inability of the black level clipping circuit to respond adequately to the video signal when bright sunlight suddenly entered the camera's field of view.

  17. The Motion Picture in Science Education: "One Hundred Percent Efficiency."

    Science.gov (United States)

    King, Kenneth P.

    1999-01-01

    Provides an historical overview of the development of the motion picture as a tool within the context of science education. Examines the use of technology as a teaching tool in terms of scientific literacy and the means by which the motion picture helped to accomplish scientific literacy goals. (Author/CCM)

  18. Motivational Factors Affecting the Integration of a Learning Management System by Faculty

    Directory of Open Access Journals (Sweden)

    Cynthia Gautreau

    2011-01-01

    Full Text Available Online courses taught using a learning management system are common in higher education. Teaching online requires a new set of skills, knowledge, and professional growth. Faculty development programs often overlook factors that promote or inhibit the use of technologies among professors. This study identified the motivation factors that faculty consider relevant to their personal decision to adopt a learning management system. A needs assessment evaluation methodology was applied to investigate two research questions. The first question analyzed the demographics of the participants in this study including gender, age, tenure status, department, and years of experience using a technology and using an LMS. The second research question investigated the intrinsic and extrinsic factors that motivate faculty to adopt a learning management system in their instruction. Participants (N = 42 were tenured and tenure track faculty instructing at a four-year public university in California.

  19. Analysis Of Factors Affecting The Success Of The Application Of Accounting Information System

    Directory of Open Access Journals (Sweden)

    Deni Iskandar

    2015-02-01

    Full Text Available Abstract The purpose of this study was to find solutions for problems related to the quality of accounting information systems accounting information quality when connected with management commitment user competency and organizational culture. This research was conducted through deductive analysis supported the phenomenon then sought evidence through empirical facts especially about the effect of management commitment competence and users of organizational culture on the quality of accounting information systems and their impact on the quality of accounting information. This research was conducted at the State-Owned Enterprises SOEs.

  20. Susceptibility of South Korea to Extremes Affecting the Global Food System

    Science.gov (United States)

    Chon, So Young; Puma, Michael J.

    2015-01-01

    Food security in South Korea is tightly linked to the global food system. The country's production of major grains declined from 5.8 million metric tons (mmt) in 1998 to 4.8 mmt in 2014, which caused the country's grain self suciency to decline from 31.4% to 24%. This decline is a consequence of several factors including reductions in domestic agricultural land, governmental policies supporting industry over agriculture, and a push towards trade liberalization. South Korea's self suciency is now one of the lowest among Organisation for Economic Co-operation and Development (OECD) countries, leaving it vulnerable to disruptions in the global food system.

  1. Contextual modulation of hippocampal activity during picture naming.

    Science.gov (United States)

    Llorens, A; Dubarry, A-S; Trébuchon, A; Chauvel, P; Alario, F-X; Liégeois-Chauvel, C

    2016-08-01

    Picture naming is a standard task used to probe language processes in healthy and impaired speakers. It recruits a broad neural network of language related areas, among which the hippocampus is rarely included. However, the hippocampus could play a role during picture naming, subtending, for example, implicit learning of the links between pictured objects and their names. To test this hypothesis, we recorded hippocampal activity during plain picture naming, without memorization requirement; we further assessed whether this activity was modulated by contextual factors such as repetition priming and semantic interference. Local field potentials recorded from intracerebral electrodes implanted in the healthy hippocampi of epileptic patients revealed a specific and reliable pattern of activity, markedly modulated by repetition priming and semantic context. These results indicate that the hippocampus is recruited during picture naming, presumably in relation to implicit learning, with contextual factors promoting differential hippocampal processes, possibly subtended by different sub-circuitries. PMID:27380274

  2. Reducing the familiarity of conjunction lures with pictures.

    Science.gov (United States)

    Lloyd, Marianne E

    2013-09-01

    Four experiments were conducted to test whether conjunction errors were reduced after pictorial encoding and whether the semantic overlap between study and conjunction items would impact error rates. Across 4 experiments, compound words studied with a single-picture had lower conjunction error rates during a recognition test than those words studied with 2 pictures. This effect occurred even when participants were asked to respond quickly (Experiment 3) or to respond positively to any word that overlapped with the study phase (Experiment 2), as well as when the number of pictures shown at study was manipulated within-participants (Experiment 4). The effect of semantic overlap was ambiguous, with only Experiment 2 showing a difference between high and low overlap items. Overall, these results are inconsistent with a metacognitive interpretation of the role of pictures in reducing memory errors and are more consistent with impoverished familiarity after single-picture encoding. PMID:23356239

  3. Responsiveness to the Negative Affect System as a Function of Emotion Perception: Relations Between Affect and Sociability in Three Daily Diary Studies.

    Science.gov (United States)

    Moeller, Sara K; Nicpon, Catherine G; Robinson, Michael D

    2014-04-30

    Perceiving emotions clearly and accurately is an important component of emotional intelligence (EI). This skill is thought to predict emotional and social outcomes, but evidence for this point appears somewhat underwhelming in cross-sectional designs. The present work adopted a more contextual approach to understanding the correlates of emotion perception. Because emotion perception involves awareness of affect as it occurs, people higher in this skill might reasonably be expected to be more attuned to variations in their affective states and be responsive to them for this reason. This novel hypothesis was pursued in three daily diary studies (total N = 247), which found systematic evidence for the idea that higher levels of daily negative affect predicted lesser sociability particularly, and somewhat exclusively, among people whose emotion perception skills were high rather than low. The results support a contextual understanding of individual differences in emotion perception and how they operate. PMID:24789808

  4. Does heparin pretreatment affect the haemostatic system during and after cardiopulmonary bypass?

    NARCIS (Netherlands)

    Brinks, H.J.; Weerwind, P.W.; Bogdan, S.; Verbruggen, H.W.; Brouwer, M.H.J.

    2001-01-01

    In this clinical pilot study, the influence of heparin pretreatment on the haemostatic system during and after cardiopulmonary bypass (CPB) was investigated. Thirteen patients scheduled for elective coronary artery bypass grafting (CABG) were divided into two groups: heparin pretreated (HP, n = 6) a

  5. Soil water infiltration affected by biofuel and grain crop production systems in claypan landscape

    Science.gov (United States)

    The effect of soil management systems on water infiltration is very crucial within claypan landscapes to maximize production as well as minimize environmental risks. The objective of this study was to assess the effect of topsoil thickness on water infiltration in claypan soils for grain and biofuel...

  6. Motivational Factors Affecting the Integration of a Learning Management System by Faculty

    Science.gov (United States)

    Gautreau, Cynthia

    2011-01-01

    Online courses taught using a learning management system are common in higher education. Teaching online requires a new set of skills, knowledge, and professional growth. Faculty development programs often overlook factors that promote or inhibit the use of technologies among professors. This study identified the motivation factors that faculty…

  7. Factors Affecting Selection of Learning Management Systems in Higher Education Institutions

    Science.gov (United States)

    Spelke, Kenneth A.

    2011-01-01

    Learning Management Systems, or LMSs, are widely used throughout higher education to deliver a range of instructional services including content delivery, discussion boards and collaborative work space, testing tools, and gradebook functions. LMSs can be used asynchronously or synchronously in support of online learning, classroom-based learning,…

  8. The Interplay between Language, Gesture, and Affect during Communicative Transition: A Dynamic Systems Approach

    Science.gov (United States)

    Parlade, Meaghan V.; Iverson, Jana M.

    2011-01-01

    From a dynamic systems perspective, transition points in development are times of increased instability, during which behavioral patterns are susceptible to temporary decoupling. This study investigated the impact of the vocabulary spurt on existing patterns of communicative coordination. Eighteen typically developing infants were videotaped at…

  9. Soy-Based Formula Does Not Adversely Affect Immune System Development in Neonatal Piglets

    Science.gov (United States)

    Breast-fed infants are less susceptible to infections and allergic reactions than those fed formula, suggesting that diet may influence neonatal immune system development. The goal of the present study was two fold: 1. to determine the effect of formula feeding relative to breast-feeding on neonata...

  10. Is UV-B radiation affecting charophycean algae in shallow freshwater systems?

    NARCIS (Netherlands)

    de Bakker, NVJ; van Bodegom, PM; van de Poll, WH; Boelen, P; Nat, E; Rozema, J; Aerts, R

    2005-01-01

    The objective of this study was to determine the effects of UV-B radiation on charophycean algae under natural conditions, since charophytes enhance water transparency in freshwater systems and levels of UV-B radiation have increased by ozone depletion. Potential and actual UV-B effects were studied

  11. Specific characteristics of the aviary housing system affect plumage condition, mortality and production in laying hens

    NARCIS (Netherlands)

    Heerkens, J.L.T.; Delezie, Evelyne; Kempen, Ine; Zoons, Johan; Ampe, Bart; Rodenburg, T.B.; Tuyttens, F.A.M.

    2015-01-01

    Feather pecking and high mortality levels are significant welfare problems in non-cage housing systems for laying hens. The aim of this study was to identify husbandry-related risk factors for feather damage, mortality, and egg laying performance in laying hens housed in the multi-tier non-cage h

  12. Characterization of Arabidopsis enhanced disease susceptibility mutants that are affected in systemically induced resistance

    NARCIS (Netherlands)

    Ton, J.; Vos, M. de; Robben, C.; Buchala, Anthony; Métraux, Jean-Pierre; Loon, L.C. van; Pieterse, C.M.J.

    2002-01-01

    In Arabidopsis, the rhizobacterial strain Pseudomonas fluorescens WCS417r triggers jasmonate (JA)- and ethylene (ET)-dependent induced systemic resistance (ISR) that is effective against different pathogens. Arabidopsis genotypes unable to express rhizobacteria-mediated ISR against the bacterial pat

  13. Does Students' Source of Knowledge Affect Their Understanding of Volcanic Systems?

    Science.gov (United States)

    Parham, Thomas L.; Cervato, Cinzia; Gallus, William; Larsen, Michael; Hobbs, Jon; Greenbowe, Thomas

    2011-01-01

    A recent survey of undergraduates at five schools across the United States indicates that many undergraduates feel that they have learned more about volcanic systems from Hollywood films and the popular media than they learned in the course of their precollegiate formal education. Scores on the Volcanic Concept Survey, an instrument designed to…

  14. Soil quality index as affected by different cropping systems in northwestern Himalayas.

    Science.gov (United States)

    Sofi, J A; Bhat, A G; Kirmai, N A; Wani, J A; Lone, Aabid H; Ganie, Mumtaz A; Dar, G I H

    2016-03-01

    Soil quality assessment provides a tool for evaluating the sustainability of soils under different crop cafeterias. Our objective was to develop the soil quality index for evaluating the soil quality indicators under different cropping systems in northwest Himalaya-India. Composite soil samples were taken from the study area from different cropping systems which include T1 (forest soil control), T2 (rice-oilseed, lower belts), T3 (rice-oilseed, higher belts), T4 (rice-oats), T5 (rice-fallow), T6 (maize-oats), T7 (maize-peas), T8 (apple), T9 (apple-beans), and T10 (apple-maize). Physical, chemical, and biological soil indicators were determined, and it was found that soil enzyme activities involved in nutrient cycling were significantly higher in forest soils, which were reflected in higher levels of available pool of nutrients. Carbon stocks were found significantly higher in forest soil which was translated in improved soil physical condition. Principal component analysis (PCA) was performed to reduce multidimensionality of data followed by scoring by homothetic transformation of the selected indicators. Pearson's interclass correlation was performed to avoid redundancy, and highly correlated variables were not retained. Inclusion of legumes in the apple orchard floor recorded highest soil quality rating across the treatments. Cereal-based cropping systems were found in lower soil quality rating; however, the incorporation of peas in the system improved soil health.

  15. HRT and nutrients affect bacterial communities grown on recirculation aquaculture system effluents

    NARCIS (Netherlands)

    Schneider, O.; Chabrillon-Popelka, M.; Smidt, H.; Haenen, O.L.M.; Sereti, V.; Eding, E.H.; Verreth, J.A.J.

    2007-01-01

    In a recirculation aquaculture system the drumfilter effluent can be used as substrate for heterotrophic bacterial production, which can be recycled as feed. Because the bacteria might contain pathogens, which could reduce its suitability as feed, it is important to characterize these communities. B

  16. Emotional sounds modulate early neural processing of emotional pictures

    Directory of Open Access Journals (Sweden)

    Antje B M Gerdes

    2013-10-01

    Full Text Available In our natural environment, emotional information is conveyed by converging visual and auditory information; multimodal integration is of utmost importance. In the laboratory, however, emotion researchers have mostly focused on the examination of unimodal stimuli. Few existing studies on multimodal emotion processing have focused on human communication such as the integration of facial and vocal expressions. Extending the concept of multimodality, the current study examines how the neural processing of emotional pictures is influenced by simultaneously presented sounds. Twenty pleasant, unpleasant, and neutral pictures of complex scenes were presented to 22 healthy participants. On the critical trials these pictures were paired with pleasant, unpleasant and neutral sounds. Sound presentation started 500 ms before picture onset and each stimulus presentation lasted for 2s. EEG was recorded from 64 channels and ERP analyses focused on the picture onset. In addition, valence, and arousal ratings were obtained. Previous findings for the neural processing of emotional pictures were replicated. Specifically, unpleasant compared to neutral pictures were associated with an increased parietal P200 and a more pronounced centroparietal late positive potential (LPP, independent of the accompanying sound valence. For audiovisual stimulation, increased parietal P100 and P200 were found in response to all pictures which were accompanied by unpleasant or pleasant sounds compared to pictures with neutral sounds. Most importantly, incongruent audiovisual pairs of unpleasant pictures and pleasant sounds enhanced parietal P100 and P200 compared to pairings with congruent sounds. Taken together, the present findings indicate that emotional sounds modulate early stages of visual processing and, therefore, provide an avenue by which multimodal experience may enhance perception.

  17. How are macroinvertebrates of slow flowing lotic systems directly affected by suspended and deposited sediments?

    Energy Technology Data Exchange (ETDEWEB)

    Kefford, Ben J., E-mail: ben.kefford@rmit.edu.a [Biotechnology and Environmental Biology, School of Applied Sciences, RMIT University, PO Box 71, Bundoora, Victoria 3083 (Australia); Zalizniak, Liliana [Biotechnology and Environmental Biology, School of Applied Sciences, RMIT University, PO Box 71, Bundoora, Victoria 3083 (Australia); Dunlop, Jason E. [Department of Environment and Resource Management (DERM), 120 Meiers Rd, Indooroopilly, Queensland 4068 (Australia); Smart Water Research Facility, Griffith University, Queensland (Australia); Nugegoda, Dayanthi [Biotechnology and Environmental Biology, School of Applied Sciences, RMIT University, PO Box 71, Bundoora, Victoria 3083 (Australia); Choy, Satish C. [Department of Environment and Resource Management (DERM), 120 Meiers Rd, Indooroopilly, Queensland 4068 (Australia)

    2010-02-15

    The effects of suspended and deposited sediments on the macroinvertebrates are well documented in upland streams but not in slower flowing lowland rivers. Using species found in lowland lotic environments, we experimentally evaluate mechanisms for sediments to affect macroinvertebrates, and in one experiment whether salinity alters the effect of suspended sediments. Suspended kaolin clay reduced feeding of Ischnura heterosticta (Odonata: Coenagrionidae) at high turbidity (1000-1500 NTU) but had no effects on feeding of Hemianax papuensis (Odonata: Aeshnidae) and Micronecta australiensis (Hemiptera: Corixidae). In freshwater (0.1 mS/cm), survival of Ischnura aurora was poor in clear water, but improved with suspended kaolin. Growth and feeding of I. aurora were unaffected by suspended sediments and salinity. Burial (1-5 mm) of eggs with kaolin or sand reduced hatching in Physa acuta (Gastropoda: Physidae), Gyraulus tasmanica (Gastropoda: Planorbidae) and Chironomus cloacalis (Diptera: Chironomidae). Settling sediments may pose greater risk to lowland lotic invertebrates than suspended sediments. - Sediment deposition may be more directly detrimental to macroinvertebrates of lowland rivers than suspended sediments.

  18. Treatment of Chronic Hepatitis C in a Patient Affected by Systemic Sclerosis

    Directory of Open Access Journals (Sweden)

    Guido Poggi

    2009-01-01

    Full Text Available The currently recommended treatment for patients infected with hepatitis C virus (HCV is pegilated interferon α (IFN α plus ribavirin. Despite the numerous benefits of this therapy, there is an increasing concern regarding his tolerance. Among the most common side effects, interferon may trigger the onset or exacerbation of autoimmune diseases. When chronic hepatitis C coexists with an autoimmune disorder, it is not clear whether using interferon is better than avoiding it. We evaluated the disease state of a 55-year old female affected by sistemic sclerosis (SSc, during and after therapy with IFNα pegilated plus ribavirin for chronic HCV infection. We were worried about the potential worsening of the autoimmune disease during the therapy, but we were confident that we would give our patient a short course of peginterferon and ribavirin. A mild, asymptomatic worsening of lung SSc was observed during IFN administration, without life threatening symptoms. After 24 months follow up we observed the maintenance of the virological response and a good control of the rheumatological disease. Thus, in liver disease at high risk of progression and concomitant SSc, the antiviral therapy with IFNα is a feasible approach.

  19. Eukaryotic expression system Pichia pastoris affects the lipase catalytic properties: a monolayer study.

    Directory of Open Access Journals (Sweden)

    Madiha Bou Ali

    Full Text Available Recombinant DNA methods are being widely used to express proteins in both prokaryotic and eukaryotic cells for both fundamental and applied research purposes. Expressed protein must be well characterized to be sure that it retains the same properties as the native one, especially when expressed protein will be used in the pharmaceutical field. In this aim, interfacial and kinetic properties of native, untagged recombinant and tagged recombinant forms of a pancreatic lipase were compared using the monomolecular film technique. Turkey pancreatic lipase (TPL was chosen as model. A kinetic study on the dependence of the stereoselectivity of these three forms on the surface pressure was performed using three dicaprin isomers spread in the form of monomolecular films at the air-water interface. The heterologous expression and the N-His-tag extension were found to modify the pressure preference and decrease the catalytic hydrolysis rate of three dicaprin isomers. Besides, the heterologous expression was found to change the TPL regioselectivity without affecting its stereospecificity contrary to the N-tag extension which retained that regioselectivity and changed the stereospecificity at high surface pressures. The study of parameters, termed Recombinant expression Effects on Catalysis (REC, N-Tag Effects on Catalysis (TEC, and N-Tag and Recombinant expression Effects on Catalysis (TREC showed that the heterologous expression effects on the catalytic properties of the TPL were more deleterious than the presence of an N-terminal tag extension.

  20. Evaluation of Sorghum Density As Affected By Two Water Qualities Under Drip Irrigation System

    Directory of Open Access Journals (Sweden)

    B. A.O. Ahmed

    2007-01-01

    Full Text Available Pot experiment was conducted under glasshouse conditions during 2005 at the Arid Land Research Center, Tottori University in Tottori, Japan. The study presented here was aimed to evaluating the response of sorghum (Sorghum bicolor (L Moench, density under two different water qualities. The investigation was carried out in randomized complete block design experiments located in a plastic greenhouse. Crop growth was temporal varied with crop density and water quality. The statistical parameters; mean, median, CV, and the PCV, for the time series LWP data indicated the impact of sorghum density and water quality, on osmotic stress was best discriminated by PCV, followed by CV, median, and mean. The impact of different sorghum density on stresses under good water quality was similar trend to the impact of salinity under low density. The time series analysis for LWP indicated that PCV best statistical parameter to discriminate the impacts of stress under different water quality. The grain yield was significantly influenced by plant density regardless of water quality. Electrical conductivity was also affected by water quality as well as by plant density.